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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-K
ýANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the Fiscal Year Ended December 31, 20172022
or
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Commission

File Number
Name of Registrant; State or Other Jurisdiction of Incorporation; Address of Principal Executive Offices; and Telephone NumberIRS Employer Identification Number
1-16169001-16169EXELON CORPORATION23-2990190
(a Pennsylvania corporation)
10 South Dearborn Street
P.O. Box 805379
Chicago, Illinois 60680-5379
(800) 483-3220
333-85496001-01839EXELON GENERATION COMPANY, LLC23-3064219
(a Pennsylvania limited liability company)
300 Exelon Way
Kennett Square, Pennsylvania 19348-2473
(610) 765-5959
1-1839COMMONWEALTH EDISON COMPANY36-0938600
(an Illinois corporation)
440
10 South LaSalleDearborn Street
Chicago, Illinois 60605-1028
60603-2300
(312) 394-4321
000-16844PECO ENERGY COMPANY23-0970240
(a Pennsylvania corporation)
P.O. Box 8699
2301 Market Street
Philadelphia, Pennsylvania 19101-8699
(215) 841-4000
1-1910001-01910BALTIMORE GAS AND ELECTRIC COMPANY52-0280210
(a Maryland corporation)
2 Center Plaza
110 West Fayette Street
Baltimore, Maryland 21201-3708
(410) 234-5000
001-31403PEPCO HOLDINGS LLC52-2297449
(a Delaware limited liability company)
701 Ninth Street, N.W.
Washington, District of Columbia 20068
20068-0001
(202) 872-2000
001-01072POTOMAC ELECTRIC POWER COMPANY53-0127880
(a District of Columbia and Virginia corporation)
701 Ninth Street, N.W.
Washington, District of Columbia 20068
20068-0001
(202) 872-2000
001-01405DELMARVA POWER & LIGHT COMPANY51-0084283
(a Delaware and Virginia corporation)
500 North Wakefield Drive
Newark, Delaware 19702
19702-5440
(202) 872-2000
001-03559ATLANTIC CITY ELECTRIC COMPANY21-0398280
(a New Jersey corporation)
500 North Wakefield Drive
Newark, Delaware 19702
19702-5440
(202) 872-2000




Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
EXELON CORPORATION:
Common Stock, without par valueEXCThe Nasdaq Stock Market LLC
Title of Each ClassName of Each Exchange on Which Registered
EXELON CORPORATION:
Common Stock, without par valueNew York and Chicago
Series A Junior Subordinated DebenturesNew York
Corporate UnitsNew York
PECO ENERGY COMPANY:
Trust Receipts of PECO Energy Capital Trust III, each representing a 7.38% Cumulative Preferred Security, Series D, $25 stated value, issued by PECO Energy Capital, L.P. and unconditionally guaranteed by PECO Energy CompanyEXC/28New York Stock Exchange
Securities registered pursuant to Section 12(g) of the Act:
Title of Each Class
COMMONWEALTH EDISON COMPANY:
Common Stock Purchase Warrants (1971 Warrants and Series B Warrants)
Title of Each Class
COMMONWEALTH EDISON COMPANY:
Common Stock Purchase Warrants, 1971 Warrants and Series B Warrants
POTOMAC ELECTRIC POWER COMPANY:
Common Stock, $.01 par value
DELMARVA POWER & LIGHT COMPANY:
Common Stock, $2.25 par value
ATLANTIC CITY ELECTRIC COMPANY:
Common Stock, $3.00 par value
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
Exelon Corporation
Yesx
x
Noo
Exelon Generation Company, LLC
Yes   x
No   o
Commonwealth Edison Company
Yesx
Noox
PECO Energy Company
Yesx
Noox
Baltimore Gas and Electric Company
Yesx
Noox
Pepco Holdings LLC
Yesx
Noox
Potomac Electric Power Company
Yeso
Nox
Delmarva Power & Light Company
Yeso
Nox
Atlantic City Electric Company
Yeso
Nox
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.
Exelon Corporation
Yeso
Nox
Exelon Generation Company, LLC
Yes   o
No   x
Commonwealth Edison Company
Yeso
Nox
PECO Energy Company
Yeso
Nox
Baltimore Gas and Electric Company
Yeso
Nox
Pepco Holdings LLC
Yeso
Nox
Potomac Electric Power Company
Yeso
Nox
Delmarva Power & Light Company
Yeso
Nox
Atlantic City Electric Company
Yeso
Nox
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨




Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrants’ knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ý
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Exelon CorporationLarge Accelerated FilerxAccelerated FilerNon-accelerated FilerSmaller Reporting CompanyEmerging Growth Company
Exelon Corporationx
Exelon Generation Company, LLCx
Commonwealth Edison CompanyLarge Accelerated FilerAccelerated FilerxNon-accelerated FilerxSmaller Reporting CompanyEmerging Growth Company
PECO Energy CompanyLarge Accelerated FilerAccelerated FilerxNon-accelerated FilerxSmaller Reporting CompanyEmerging Growth Company
Baltimore Gas and Electric CompanyLarge Accelerated FilerAccelerated FilerxNon-accelerated FilerxSmaller Reporting CompanyEmerging Growth Company
Pepco Holdings LLCLarge Accelerated FilerAccelerated FilerxNon-accelerated FilerxSmaller Reporting CompanyEmerging Growth Company
Potomac Electric Power CompanyLarge Accelerated FilerAccelerated FilerxNon-accelerated FilerxSmaller Reporting CompanyEmerging Growth Company
Delmarva Power & Light CompanyLarge Accelerated FilerAccelerated FilerxNon-accelerated FilerxSmaller Reporting CompanyEmerging Growth Company
Atlantic City Electric CompanyLarge Accelerated FilerAccelerated FilerxNon-accelerated FilerxSmaller Reporting CompanyEmerging Growth Company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act by the registered public accounting firm that prepared or issued its audit report. x
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes  o  No  x
The estimated aggregate market value of the voting and non-voting common equity held by nonaffiliates of each registrant as of June 30, 2017August 5, 2022 was as follows:
Exelon Corporation Common Stock, without par value$34,604,071,95944,452,390,343
Exelon Generation Company, LLCNot applicable
Commonwealth Edison Company Common Stock, $12.50 par valueNo established market
PECO Energy Company Common Stock, without par valueNone
Baltimore Gas and Electric Company, without par valueNone
Pepco Holdings LLCNot applicable
Potomac Electric Power CompanyNone
Delmarva Power & Light CompanyNone
Atlantic City Electric CompanyNone
The number of shares outstanding of each registrant’s common stock as of January 31, 20182023 was as follows:
Exelon Corporation Common Stock, without par value994,126,931 965,029,399
Exelon Generation Company, LLCNot applicable
Commonwealth Edison Company Common Stock, $12.50 par value127,021,394 127,021,256
PECO Energy Company Common Stock, without par value170,478,507 170,478,507
Baltimore Gas and Electric Company Common Stock, without par value1,000 1,000
Pepco Holdings LLCNot applicable
Potomac Electric Power Company Common Stock, $0.01 par value100 100
Delmarva Power & Light Company Common Stock, $2.25 par value1,000 1,000
Atlantic City Electric Company Common Stock, $3.00 par value8,546,017 8,546,017
Documents Incorporated by Reference

Portions of the Exelon Proxy Statement for the 20182022 Annual Meeting of
Shareholders and the Commonwealth Edison Company 20182022 Information Statement are
incorporated by reference in Part III.


Exelon Generation Company, LLC, PECO Energy Company, Baltimore Gas and Electric Company, Pepco Holdings LLC, Potomac Electric Power Company, Delmarva Power & Light Company, and Atlantic City Electric Company meet the conditions set forth in General Instruction I(1)(a) and (b) of Form 10-K and are therefore filing this Form in the reduced disclosure format.




TABLE OF CONTENTS
Page No.
Page No.
GLOSSARY OF TERMS AND ABBREVIATIONS
FILING FORMAT
CAUTIONARY STATEMENTS REGARDING FORWARD-LOOKING INFORMATION
WHERE TO FIND MORE INFORMATION
PART I
ITEM 1.BUSINESS
General
Exelon Generation Company, LLC
Utility Operations
Employees
Environmental Regulation
Executive Officers of the Registrants
PROPERTIES
Exelon Generation Company, LLC
Commonwealth Edison Company
PECO Energy Company
Baltimore Gas and Electric Company
Potomac Electric Power Company
Delmarva Power & Light Company
Atlantic City Electric Company
ITEM 3.LEGAL PROCEEDINGS
ITEM 4.MINE SAFETY DISCLOSURES
PART II
ITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS, AND ISSUER PURCHASES OF EQUITY SECURITIES
SELECTED FINANCIAL DATA
Exelon Corporation
Exelon Generation Company, LLC
Commonwealth Edison Company
PECO Energy Company
Baltimore Gas and Electric Company
Pepco Holdings LLC
Potomac Electric Power Company
Delmarva Power & Light Company
Atlantic City Electric Company

Page No.
Exelon's Strategy and Outlook for 2018 and Beyond
Liquidity Considerations
Other Key Business Drivers and Management Strategies
Exelon Generation Company, LLC
Commonwealth Edison Company
PECO Energy Company
Baltimore Gas and Electric Company
Contractual Obligations and Off-Balance Sheet Arrangements
Exelon Corporation
Exelon Generation Company, LLC
Commonwealth Edison Company
PECO Energy Company
Baltimore Gas and Electric Company
Pepco Holdings LLC
Potomac Electric Power Company
Delmarva Power & Light Company
Atlantic City Electric Company

Page No.
Exelon Generation Company, LLC
Commonwealth Edison Company
PECO Energy Company



Page No.
2. Variable Interest Entities
4. Mergers, Acquisitions and Dispositions
5. Accounts Receivable
7. Impairment of Long-Lived Assets and Intangibles
8. Early Nuclear Plant Retirements
9. Jointly Owned Electric Utility Plant
10. Intangible Assets
12. Derivative Financial Instruments
13. Debt and Credit Agreements
14. Income Taxes
15. Asset Retirement Obligations
16. Retirement Benefits
17. Severance
18. Mezzanine Equity
19. Shareholders' Equity
20. Stock-Based Compensation Plans
21. Earnings Per Share
22.21. Changes in Accumulated Other Comprehensive Income
23. Commitments and Contingencies
24. Supplemental Financial Information
25. Segment Information
26. Related Party Transactions
27. Quarterly Data
28. Subsequent Events
ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

ITEM 9C.
Page No.
PART III



Page No.
ITEM 16.FORM 10-K SUMMARY
Exelon Corporation
Exelon Generation Company, LLC




Table of Contents
GLOSSARY OF TERMS AND ABBREVIATIONS
Exelon Corporation and Related Entities
ExelonExelon Corporation
GenerationComEdExelon Generation Company, LLC
ComEdCommonwealth Edison Company
PECOPECO Energy Company
BGEBaltimore Gas and Electric Company
Pepco Holdings or PHIPepco Holdings LLC (formerly Pepco Holdings, Inc.)
PepcoPotomac Electric Power Company
DPLDelmarva Power & Light Company
ACEAtlantic City Electric Company
RegistrantsExelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE, collectively
Utility RegistrantsComEd, PECO, BGE, Pepco, DPL, and ACE, collectively
Legacy PHIPHI, Pepco, DPL, ACE, PES, and PCI, collectively
ACE Funding or ATFBSCAtlantic City Electric Transition Funding LLC
Antelope ValleyAntelope Valley Solar Ranch One
BondCoRSB BondCo LLC
BSCExelon Business Services Company, LLC
CENGEEDCConstellation Energy Nuclear Group, LLC
ConEdison SolutionsThe competitive retail electricity and natural gas business of Consolidated Edison Solutions, Inc., a subsidiary of Consolidated Edison, Inc
ConstellationConstellation Energy Group, Inc.
EEDCExelon Energy Delivery Company, LLC
EGR IVExGen Renewables IV, LLC
EGTPExGen Texas Power, LLC
EntergyEntergy Nuclear FitzPatrick, LLC
Exelon CorporateExelon in its corporate capacity as a holding company
Exelon Transmission CompanyEnterprisesExelon TransmissionEnterprises Company, LLC
Exelon WindFoundationExelon Wind, LLC and Exelon Generation Acquisition Company, LLCIndependent, non-profit philanthropic organization
FitzPatrickExelon InQB8RJames A. FitzPatrick nuclear generating stationExelon InQB8R, LLC
PCIPotomac Capital Investment Corporation and its subsidiaries
PEC L.P.PECO Energy Capital, L.P.
PECO Trust IIIPECO Energy Capital Trust III
PECO Trust IVPECO Energy Capital Trust IV
Pepco Energy Services or PESPepco Energy Services, Inc. and its subsidiaries
PHI CorporatePHI in its corporate capacity as a holding company
PHISCOPHI Service Company
RPGUIIRenewable Power Generation
SolGenSolGen, LLC
TMIThree Mile Island nuclear facility
UIIUnicom Investments, Inc.

Former Related Entities
ConstellationConstellation Energy Corporation
Generation or CEGConstellation Energy Generation, LLC (formerly Exelon Generation Company, LLC, a subsidiary of Exelon as of December 31, 2021 prior to separation on February 1, 2022)
CENGConstellation Energy Nuclear Group, LLC
FitzPatrickJames A. FitzPatrick nuclear generating station
EDFElectricite de France SA and its subsidiaries
1

Table of Contents
GLOSSARY OF TERMS AND ABBREVIATIONS
Other Terms and Abbreviations
AEC2021 Form 10-KThe Registrants' Annual Report on Form 10-K for the year ended December 31, 2021 filed with the SEC on February 25, 2022
2021 Recast Form 10-KThe Registrants' Current Report on Form 8-K filed with the SEC on June 30, 2022 to recast Exelon's consolidated financial statements and certain other financial information originally included in the 2021 Form 10-K
Note - of the 2021 Recast Form 10-KReference to specific Combined Note to Consolidated Financial Statements in the 2021 Recast Form 10-K
ABOAccumulated Benefit Obligation
AECsAlternative Energy CreditCredits that isare issued for each megawatt hour of generation from a qualified alternative energy source
AESOAFUDCAlberta Electric Systems Operator
AFUDCAllowance for Funds Used During Construction
AGEAMIAlbany Green Energy Project
AMIAdvanced Metering Infrastructure
AMPAOCIAdvanced Metering Program
AOCIAccumulated Other Comprehensive Income (Loss)
ARCAROAsset Retirement Cost
AROAsset Retirement Obligation
ARPAlternative Revenue Program
CAISOCalifornia ISO
CAPBGSCustomer Assistance ProgramBasic Generation Service
CCGTsBSACombined-Cycle gas turbinesBill Stabilization Adjustment
CERCLACBAsCollective Bargaining Agreements
CEJA (formerly Clean Energy Law in the Exelon 2021 Form 10-K)Climate and Equitable Jobs Act; Illinois Public Act 102-0662 signed into law on September 15, 2021
CERCLAComprehensive Environmental Response, Compensation, and Liability Act of 1980, as amended
CESCIPClean Energy StandardConservation Incentive Program
Clean Air ActClean Air Act of 1963, as amended
Clean Water ActFederal Water Pollution Control Amendments of 1972, as amended
ConectivCMCCarbon Mitigation Credit
CODMsChief Operating Decision Makers
ConectivConectiv, LLC, a wholly owned subsidiary of PHI and the parent of DPL and ACE during the Predecessor periods
Conectiv EnergyDC PLUGConectiv Energy Holdings, Inc. and substantially all of its subsidiaries, which were sold to Calpine in July 2010
CSAPRCross-State Air Pollution Rule
CTAConsolidated tax adjustment
D.C. Circuit CourtUnited States Court of Appeals for the District of Columbia CircuitPower Line Undergrounding Initiative
DCPSCDistrict of Columbia Public Service Commission
Default Electricity SupplyThe supply of electricity by PHI’s electric utility subsidiaries at regulated rates to retail customers who do not elect to purchase electricity from a competitive supplier, and which, depending on the jurisdiction, is also known as Standard Offer Service or BGS
DOEDEPSCUnited States Department of Energy
DOJUnited States Department of Justice
DPSCDelaware Public Service Commission
DRPDirect Stock Purchase and Dividend Reinvestment Plan
DSPDOEEDepartment of Energy & Environment
DPADeferred Prosecution Agreement
DPPDeferred Purchase Price
DSICDistribution System Improvement Charge
DSPDefault Service Provider
DSP ProgramDefault Service Provider Program
EDFEIMAElectricite de France SA and its subsidiaries
EE&CEnergy Efficiency and Conservation/Demand Response
EIMAEnergy Infrastructure Modernization Act (Illinois Senate Bill 1652 and Illinois House Bill 3036)
EmPower MarylandEPAA Maryland demand-side management program for Pepco and DPL
EPAUnited States Environmental Protection Agency
EPSAElectric Power Supply Association

ERCOT
GLOSSARY OF TERMS AND ABBREVIATIONS
Other Terms and Abbreviations
ERCOTElectric Reliability Council of Texas
ERISAEmployee Retirement Income Security Act of 1974, as amended
EROAExpected Rate of Return on Assets
ESPPEmployee Stock Purchase Plan
FASBERPFinancial Accounting Standards BoardEnterprise Resource Program
FEJAETACEnergy Transition Assistance Charge
FEJAIllinois Public Act 99-0906 or Future Energy Jobs Act
FERCFederal Energy Regulatory Commission
FRCCFlorida Reliability Coordinating Council
GAAPGenerally Accepted Accounting Principles in the United States
GCRGas Cost Rate
2

Table of Contents
GHGGreenhouse GasGLOSSARY OF TERMS AND ABBREVIATIONS
GSAOther Terms and Abbreviations
GHGGreenhouse Gas
GSAGeneration Supply Adjustment
GWhGWhsGigawatt hourhours
IBEWICCInternational Brotherhood of Electrical Workers
ICCIllinois Commerce Commission
ICEIntercontinental Exchange
Illinois EPAIIPIllinois Environmental Protection AgencyInfrastructure Investment Program
Illinois Settlement LegislationLegislation enacted in 2007 affecting electric utilities in Illinois
IntegrysIPAIntegrys Energy Services, Inc.
IPAIllinois Power Agency
IRCInternal Revenue Code
IRSInternal Revenue Service
ISOISOsIndependent System OperatorOperators
ISO-NEISO New England Inc.
ISO-NYISO New York
kVKilovolt
kWKilowatt
kWhKilowatt-hour
LIBORLondon Interbank Offered Rate
LLRWLow-Level Radioactive Waste
LT PlanLong-Term renewable resources procurement plan
LTIPLong-Term Incentive Plan
MAPPMid-Atlantic Power Pathway
MATSU.S. EPA Mercury and Air Toxics Rule
MBRMarket Based Rates Incentive
MDEMaryland Department of the Environment
MDPSCMaryland Public Service Commission
MGPManufactured Gas Plant
MISOMidcontinent Independent System Operator, Inc.
mmcfMillion Cubic Feet
Moody’sMoody’s Investor Service
MOPRMinimum Offer Price Rule

GLOSSARY OF TERMS AND ABBREVIATIONSLIBORLondon Interbank Offered Rate
Other Terms and AbbreviationsLNGLiquefied Natural Gas
MRVMarket-Related Value
MWLTIPMegawattLong-Term Incentive Plan
MWhLTRRPPMegawatt hourLong-Term Renewable Resources Procurement Plan
n.m.not meaningful
NAAQSMDPSCNational Ambient Air Quality StandardsMaryland Public Service Commission
NAVMGPManufactured Gas Plant
mmcfMillion Cubic Feet
MRPMulti-Year Rate Plan
MRVMarket-Related Value
MWMegawatt
MWhMegawatt hour
N/ANot applicable
NAVNet Asset Value
NDTNuclear Decommissioning Trust
NEILNERCNuclear Electric Insurance Limited
NERCNorth American Electric Reliability Corporation
NGSNJBPUNatural Gas Supplier
NJBPUNew Jersey Board of Public Utilities
NJDEPNew Jersey Department of Environmental Protection
Non-Regulatory Agreements UnitsNuclear generating units or portions thereof whose decommissioning-related activities are not subject to contractual elimination under regulatory accounting
NOSANPDESNuclear Operating Services Agreement
NPDESNational Pollutant Discharge Elimination System
NRCNPNSNuclear Regulatory CommissionNormal Purchase Normal Sale scope exception
NSPSNPSNew Source Performance StandardsNational Park Service
NUGsNRDNon-utility generatorsNatural Resources Damages
NWPAOCINuclear Waste Policy Act of 1982
NYMEXNew York Mercantile Exchange
NYPSCNew York Public Service Commission
OCIOther Comprehensive Income
OIESOOPEBOntario Independent Electricity System Operator
OPCOffice of People’s Counsel
OPEBOther Postretirement Employee Benefits
PA DEPPennsylvania Department of Environmental Protection
PAPUCPennsylvania Public Utility Commission
PGCPCBsPolychlorinated Biphenyls
PGCPurchased Gas Cost Clause
PJMPJM Interconnection, LLC
POLRPJM TariffPJM Open Access Transmission Tariff
POLRProvider of Last Resort
PORPPAPurchase of ReceivablesPower Agreement
PPAPP&EPower Purchase AgreementProperty, Plant, and Equipment
Price-Anderson ActPRPsPrice-Anderson Nuclear Industries Indemnity Act of 1957
Preferred StockOriginally issued shares of non-voting, non-convertible and non-transferable Series A preferred stock, par value $0.01 per share
PRPPotentially Responsible Parties
PSEGPublic Service Enterprise Group Incorporated
PVPhotovoltaic
RCRAResource Conservation and Recovery Act of 1976, as amended
RECRenewable Energy Credit which is issued for each megawatt hour of generation from a qualified renewable energy source

GLOSSARY OF TERMS AND ABBREVIATIONS
Other Terms and Abbreviations
Regulatory Agreement UnitsNuclear generating units or portions thereof whose decommissioning-related activities are subject to contractual elimination under regulatory accountingagreements with the ICC and PAPUC
3

Table of Contents
RESGLOSSARY OF TERMS AND ABBREVIATIONS
Other Terms and Abbreviations
RESRetail Electric Suppliers
RFPRequest for Proposal
RiderReconcilable Surcharge Recovery Mechanism
RGGIRegional Greenhouse Gas Initiative
RMCRisk Management Committee
ROEReturn on equity
RPMROUPJM Reliability Pricing ModelRight-of-use
RPSRenewable Energy Portfolio Standards
RSSARTEPReliability Support Services Agreement
RTEPRegional Transmission Expansion Plan
RTORegional Transmission Organization
S&PStandard & Poor’s Ratings Services
SECUnited States Securities and Exchange Commission
Senate Bill 1SOAMaryland Senate Bill 1Society of Actuaries
SERCSOFRSERC Reliability Corporation (formerly Southeast Electric Reliability Council)Secured Overnight Financing Rate
SGIGSOSSmart Grid Investment Grant from DOE
SILOSale-In, Lease-Out
SNFSpent Nuclear Fuel
SOSStandard Offer Service
SPFPASSASocial Security Police and Fire Professionals of AmericaAdministration
SPPSTRIDESouthwest Power PoolMaryland Strategic Infrastructure Development and Enhancement Program
TCJA
Tax Cuts and Jobs Act


Transition Bond ChargeRevenue ACE receives, and pays to ACE Funding, to fund the principal and interest payments on Transition Bonds and related taxes, expenses and fees
Transition BondsTransition Bonds issued by ACEAtlantic City Electric Transition Funding LLC
UpstreamU.S. Court of Appeals for the D.C. CircuitNatural gas and oil exploration and production activitiesUnited States Court of Appeals for the District of Columbia Circuit
VIEZECVariable Interest Entity
WECCWestern Electric Coordinating Council
ZECZero Emission Credit
ZESZero Emission Standard

4

Table of Contents
FILING FORMAT
This combined Annual Report on Form 10-K is being filed separately by Exelon Corporation, Exelon Generation Company, LLC, Commonwealth Edison Company, PECO Energy Company, Baltimore Gas and Electric Company, Pepco Holdings LLC, Potomac Electric Power Company, Delmarva Power & Light Company, and Atlantic City Electric Company (Registrants). Information contained herein relating to any individual Registrant is filed by such Registrant on its own behalf. No Registrant makes any representation as to information relating to any other Registrant.
CAUTIONARY STATEMENTS REGARDING FORWARD-LOOKING INFORMATION
This Report contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and uncertainties. Words such as “could,” “may,” “expects,” “anticipates,” “will,” “targets,” “goals,” “projects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “predicts,” "should," and variations on such words, and similar expressions that reflect our current views with respect to future events and operational, economic and financial performance, are intended to identify such forward-looking statements.
The factors that could cause actual results to differ materially from the forward-looking statements made by the Registrants include those factors discussed herein, including those factors discussed with respect to the Registrants discussed in (a) Part I, ITEM 1A. Risk Factors, (b) Part II, ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part II, ITEM 8. Financial Statements and Supplementary Data: Note 23,18, Commitments and Contingencies;Contingencies, and (d) other factors discussed in filings with the SEC by the Registrants. Readers
Investors are cautioned not to place undue reliance on these forward-looking statements, which apply only as of the date of this Report. None of the Registrants undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this Report.
WHERE TO FIND MORE INFORMATION
The public may readSEC maintains an Internet site at www.sec.gov that contains reports, proxy and copy any reports orinformation statements, and other information that the Registrants file electronically with the SEC at the SEC’s public reference room at 100 F Street, N.E., Washington, D.C. 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330.SEC. These documents are also available to the public from commercial document retrieval services the website maintained by the SEC at www.sec.govand the Registrants’ website at www.exeloncorp.com. Information contained on the Registrants’ website shall not be deemed incorporated into, or to be a part of, this Report.


5

Table of Contents
PART I
ITEM 1.BUSINESS
General
Corporate Structure and Business and Other Information
Exelon incorporated in Pennsylvania in February 1999, is a utility services holding company engaged through Generation, in the energy generation business,distribution and transmission businesses through ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE inACE.
On February 21, 2021, Exelon’s Board of Directors approved a plan to separate the energy delivery businesses discussed below. Exelon’s principal executive offices are located at 10 South Dearborn Street, Chicago, Illinois 60603.
Utility Registrants and Generation. The separation was completed on February 1, 2022, creating two publicly traded companies, Exelon and Constellation. See Note 2 – Discontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information.
Name of RegistrantState/Jurisdiction andBusinessBusinessServiceAddress of Principal Territories
Year of IncorporationTerritoriesExecutive Offices
Exelon Generation
Company, LLC
Pennsylvania (2000)
Generation, physical delivery and marketing of power across multiple geographical regions through its customer-facing business, Constellation, which sells electricity to both wholesale and retail customers. Generation also sells natural gas, renewable energy and other energy-related products and services.

Six reportable segments: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Power Regions
300 Exelon Way,
Kennett Square, Pennsylvania 19348
Commonwealth Edison CompanyIllinois (1913)Purchase and regulated retail sale of electricityNorthern Illinois, including the City of Chicago
440 South LaSalle Street,
Chicago, Illinois 60605
Transmission and distribution of electricity to retail customers
PECO Energy CompanyPennsylvania (1929)Purchase and regulated retail sale of electricity and natural gasSoutheastern Pennsylvania, including the City of Philadelphia (electricity)
2301 Market Street,
Philadelphia, Pennsylvania 19103
Transmission and distribution of electricity and distribution of natural gas to retail customersPennsylvania counties surrounding the City of Philadelphia (natural gas)
Baltimore Gas and Electric CompanyMaryland (1906)Purchase and regulated retail sale of electricity and natural gasCentral Maryland, including the City of Baltimore (electricity and natural gas)
110 West Fayette Street,
Baltimore, Maryland 21201
Transmission and distribution of electricity and distribution of natural gas to retail customers
Pepco Holdings LLCDelaware (2016)Utility services holding company engaged, through its reportable segmentssegments: Pepco, DPL, and ACEService Territories of Pepco, DPL, and ACE701 Ninth Street, N.W.,
Washington, D.C. 20068
Potomac Electric 
Power Company
District of Columbia
(1896)
Virginia (1949)
Purchase and regulated retail sale of electricityDistrict of Columbia and Major portions of Montgomery and Prince George’s Counties, Maryland
701 Ninth Street, N.W.,
Washington, D.C. 20068
Transmission and distribution of electricity to retail customers
Delmarva Power & Light Company
Delaware (1909)
Virginia (1979)
Purchase and regulated retail sale of electricity and natural gasPortions of Delaware and Maryland (electricity)
500 North Wakefield Drive,
Newark, Delaware 19702
Transmission and distribution of electricity and distribution of natural gas to retail customersPortions of New Castle County, Delaware (natural gas)
Atlantic City Electric CompanyNew Jersey (1924)Purchase and regulated retail sale of electricityPortions of Southern New Jersey
500 North Wakefield Drive,
Newark, Delaware 19702
Transmission and distribution of electricity to retail customers

Business Services
Through its business services subsidiary, BSC, Exelon provides its operating subsidiaries with a variety of corporate governance support services at cost, including corporate strategy and development, legal, human resources, financial, information technology, finance, real estate, security, corporate communications and supply at cost. The costs of thesemanagement services. PHI also has a business services are directly charged or allocated to the applicable operating segments. The services are provided pursuant to service agreements. Additionally, the results of Exelon’s corporate operations include interest costs and income from various investment and financing activities.
PHI Service Company (PHISCO), a wholly owned subsidiary, of PHI,PHISCO, which provides a variety of support services at cost, including legal, finance, engineering, customer operations, distribution and transmission planning, asset management, system operations, and power procurement, to PHI operating companies. The costs of BSC and its operating subsidiaries. These servicesPHISCO are directly charged or allocated pursuant to the applicable subsidiaries. The results of Exelon’s corporate operations are presented as “Other” within the consolidated financial statements and include intercompany eliminations unless otherwise disclosed.
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Table of Contents
Utility Registrants
Utility Operations
Service Territories and Franchise Agreements
The following table presents the size of service agreements among PHISCOterritories, populations of each service territory, and the participating operating subsidiaries.number of customers within each service territory for the Utility Registrants as of December 31, 2022:
Operating Segments
ComEdPECOBGEPepcoDPLACE
Service Territories (in square miles)
Electric11,450 1,900 2,300 650 5,400 2,750 
Natural GasN/A1,900 3,050 N/A250 N/A
Total(a)
11,450 2,100 3,250 650 5,400 2,750 
Service Territory Population (in millions)
Electric9.3 4.1 3.0 2.4 1.5 1.2 
Natural GasN/A2.5 2.9 N/A0.6 N/A
Total(b)
9.3 4.1 3.2 2.4 1.5 1.2 
Main CityChicagoPhiladelphiaBaltimoreDistrict of ColumbiaWilmingtonAtlantic City
Main City Population2.7 1.6 0.6 0.7 0.1 0.1 
Number of Customers (in millions)
Electric4.1 1.7 1.3 0.9 0.5 0.6 
Natural GasN/A0.5 0.7 N/A0.1 N/A
Total(c)
4.1 1.7 1.3 0.9 0.5 0.6 
___________
See Note 25 — Segment Information(a)The number of the Combined Notes to Consolidated Financial Statements for additional information on Exelon’s operating segments.
Merger with Pepco Holdings, Inc. (Exelon)
On March 23, 2016, Exelon completed the merger contemplated by the Merger Agreement among Exelon, Purple Acquisition Corp.,total service territory square miles counts once only a wholly owned subsidiary of Exelon (Merger Sub) and Pepco Holdings, Inc. (PHI). As a result ofsquare mile that merger, Merger Sub was merged into PHI (the PHI Merger) with PHI surviving as a wholly owned subsidiary of Exelon and Exelon Energy Delivery Company, LLC (EEDC), a wholly owned subsidiary of Exelon which also owns Exelon's interests in ComEd, PECO and BGE (through a special purpose subsidiary in the case of BGE). Following the completion of the PHI Merger, Exelon and PHI completed a series of internal corporate organization restructuring transactions resulting in the transfer of PHI’s unregulated business interests to Exelon and Generation and the transfer of PHI, Pepco, DPL and ACE to a special purpose subsidiary of EEDC. See Note 4 — Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for additional information on the PHI transaction.
Generation
Generation, one of the largest competitiveincludes both electric generation companies in the United States as measured by owned and contracted MW, physically delivers and markets power across multiple geographic regions through its customer-facing business, Constellation. Constellation sells electricity and natural gas including renewable energy,services, and thus does not represent the combined total square mileage of electric and natural gas service territories.
(b)The total service territory population counts once only an individual who lives in competitive energy marketsa region that includes both electric and natural gas services, and thus does not represent the combined total population of electric and natural gas service territories.
(c)The number of total customers counts once only a customer who is both an electric and a natural gas customer, and thus does not represent the combined total of electric customers and natural gas customers.
The Utility Registrants have the necessary authorizations to both wholesaleperform their current business of providing regulated electric and retail customers.natural gas distribution services in the various municipalities and territories in which they now supply such services. These authorizations include charters, franchises, permits, and certificates of public convenience issued by local and state governments and state utility commissions. ComEd's, BGE's (gas), Pepco DC's, and ACE's rights are generally non-exclusive while PECO's, BGE's (electric), Pepco MD's, and DPL's rights are generally exclusive. Certain authorizations are perpetual while others have varying expiration dates. The retail sales include commercial, industrialUtility Registrants anticipate working with the appropriate governmental bodies to extend or replace the authorizations prior to their expirations.
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Table of Contents
Utility Regulations
State utility commissions regulate the Utility Registrants' electric and residential customers. Generation leverages its energy generation portfolio to ensure deliverygas distribution rates and service, issuances of energy to both wholesalecertain securities, and retail customers under long-term and short-term contracts, and in wholesale power markets. Generation operates in well-developed energy markets and employs an integrated hedging strategy to manage commodity price volatility. Generation's fleet also provides geographic and supply source diversity. Generation’s customers include distributioncertain other aspects of the business. The following table outlines the state commissions responsible for utility oversight:
RegistrantCommission
ComEdICC
PECOPAPUC
BGEMDPSC
PepcoDCPSC/MDPSC
DPLDEPSC/MDPSC
ACENJBPU
The Utility Registrants are public utilities municipalities, cooperatives, financial institutions, and commercial, industrial, governmental, and residential customers in competitive markets. Generation’s customer-facing activities foster development and delivery of other innovative energy-related products and services for its customers.
Generation is a public utility under the Federal Power Act and is subject to FERC’s exclusive ratemaking jurisdiction over wholesale sales of electricity and the transmission of electricity in interstate commerce. Under the Federal Power Act, FERC has the authority to grant or deny market-based rates

for sales of energy, capacity and ancillary services to ensure that such sales are just and reasonable. FERC’s jurisdiction over ratemaking includes the authority to suspend the market-based rates of utilities and set cost-based rates should FERC find that its previous grant of market-based rates authority is no longer just and reasonable. Other matters subject to FERC jurisdiction include, but are not limited to, third-party financings; review of mergers; dispositions of jurisdictional facilities and acquisitions of securities of another public utility or an existing operational generating facility; affiliate transactions; intercompany financings and cash management arrangements; certain internal corporate reorganizations; and certain holding company acquisitions of public utility and holding company securities.
RTOs and ISOs exist in a number of regions to provide transmission service across multiple transmission systems. FERC has approved PJM, MISO, ISO-NE and SPP as RTOs and CAISO and ISO-NY as ISOs. These entities are responsible for regional planning, managing transmission congestion, developing wholesale markets for energy and capacity, maintaining reliability, market monitoring, the scheduling of physical power sales brokered through ICE and NYMEX and the elimination or reduction of redundant transmission charges imposed by multiple transmission providers when wholesale customers take transmission service across several transmission systems. ERCOT is not subject to regulation by FERC but performs a similar functionrelated to transmission rates and certain other aspects of the utilities' business. The U.S. Department of Transportation also regulates pipeline safety and other areas of gas operations for PECO, BGE, and DPL. The U.S. Department of Homeland Security (Transportation Security Administration) provided new security directives in Texas to2021 that performed by RTOs in markets regulated by FERC.
Specific operations of Generationregulate cyber risks for certain gas distribution operators. Additionally, the Utility Registrants are also subject to the jurisdiction of various other Federal, state, regional and local agencies, including the NRC and Federal and state environmental protection agencies. Additionally, Generation is subject to NERC mandatory reliability standards, which protect the nation’snation's bulk power system against potential disruptions from cyber and physical security breaches.
Constellation Energy Nuclear Group, LLCSeasonality Impacts on Delivery Volumes
Generation ownsThe Utility Registrants' electric distribution volumes are generally higher during the summer and winter months when temperature extremes create demand for either summer cooling or winter heating. For PECO, BGE, and DPL, natural gas distribution volumes are generally higher during the winter months when cold temperatures create demand for winter heating.
ComEd, BGE, Pepco, DPL Maryland, and ACE have electric distribution decoupling mechanisms and BGE has a 50.01% interest in CENG,natural gas decoupling mechanism that eliminate the favorable and unfavorable impacts of weather and customer usage patterns on electric distribution and natural gas delivery volumes. As a joint ventureresult, ComEd's, BGE's, Pepco's, DPL Maryland's, and ACE's electric distribution revenues and BGE's natural gas distribution revenues are not materially impacted by delivery volumes. PECO's and DPL Delaware's electric distribution revenues and natural gas distribution revenues are impacted by delivery volumes.
Electric and Natural Gas Distribution Services
The Utility Registrants are allowed to recover reasonable costs and fair and prudent capital expenditures associated with EDF. CENG is governed by a board of ten directors, five of which are appointed by Generation and five by EDF. CENG owns a total of five nuclear generating facilities on three sites, Calvert Cliffs, R.E. Ginna (Ginna) and Nine Mile Point. CENG’s ownership share in the total capacity of these units is 4,026 MW. See ITEM 2. PROPERTIES for additional information on these sites.
Generation and EDF entered into a Put Option Agreement on April 1, 2014, pursuant to which EDF has the option, exercisable beginning on January 1, 2016 and thereafter until June 30, 2022, to sell its 49.99% interest in CENG to Generation for a fair market value price determined by agreement of the parties, or absent agreement, a third-party arbitration process. The appraisers determining fair market value of EDF’s 49.99% interest in CENG under the Put Option Agreement are instructed to take into account all rights and obligations under the CENG Operating Agreement, including Generation’s rights with respect to any unpaid aggregate preferred distributions and the related return, and the value of Generation’s rights to other distributions. In addition, under limited circumstances, the period for exercise of the put option may be extended for 18 months. In order to exercise its option, EDF must give 60-days advance written notice to Generation stating that it is exercising its option. To date, EDF has not given notice to Generation that it is exercising its option.
Prior to April 1, 2014, Exelon and Generation accounted for their investment in CENG under the equity method of accounting. The transfer of the nuclear operating licenses and the execution of the NOSA on April 1, 2014, resulted in the derecognition of the equity method investment in CENG and the recording of all assets, liabilities and EDF’s noncontrolling interests in CENG at fair value on a fully consolidated basis in Exelon’s and Generation’s Consolidated Balance Sheets. See Note 2 — Variable Interest Entities of the Combined Notes to Consolidated Financial Statements for further information regarding the CENG consolidation.

Acquisitions
James A. FitzPatrick Nuclear Generating Station
On March 31, 2017, Generation acquired the 838 MW single-unit James A. FitzPatrick nuclear generating station located in Scriba, New York from Entergy Nuclear FitzPatrick LLC (Entergy) for a total purchase price consideration of $289 million, resulting in an after-tax bargain purchase gain of $233 million in 2017.
ConEdison Solutions
On September 1, 2016, Generation acquired the competitive retail electric and natural gas business activities of ConEdison Solutions, a subsidiary of Consolidated Edison, Inc., for a purchase price of $257 million including net working capital of $204 million. The renewable energy, sustainabledistribution services and energy efficiency businesses of ConEdison were excludedearn a return on those capital expenditures, subject to commission approval. ComEd recovers costs through a performance-based rate formula. ComEd is required to file an update to the performance-based rate formula on an annual basis. On September 15, 2021, Illinois passed CEJA, which contains requirements for ComEd to transition away from the transaction.
Integrys Energy Services, Inc.
On November 1, 2014, Generation acquired the competitive retail electric and natural gas business activities of Integrys Energy Group, Inc. through the purchase of all of the stock of its wholly owned subsidiary, Integrys Energy Services, Inc. (Integrys) for a purchase price of $332 million, including net working capital. The generation and solar asset businesses of Integrys were excluded from the transaction.
Dispositions
ExGen Texas Power, LLC.
On May 2, 2017, EGTP entered into a consent agreement with its lenders to permit EGTP to draw on its revolving credit facility and initiate an orderly sales process to sell the assets of its wholly owned subsidiaries, the proceeds from which will first be used to pay the administrative costs of the sale, the normal and ordinary costs of operating the plants and repayment of the secured debt of EGTP, including the revolving credit facility. As a result, Exelon and Generation classified certain EGTP assets and liabilities as held for sale at their respective fair values less costs to sell and recorded associated pre-tax impairment charges of $460 million. On November 7, 2017, EGTP and all of its wholly owned subsidiaries filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Code in the United States Bankruptcy Court for the District of Delaware. As a result of the bankruptcy filing, EGTP’s assets and liabilities were deconsolidated from Exelon and Generation's consolidated financial statements. Exelon and Generation recorded a pre-tax gain upon deconsolidation of $213 million in the fourth quarter of 2017.
Asset Divestitures
During 2015 and 2014, Generation sold certain generating assets with total pre-tax proceeds of $1.8 billion (after-tax proceeds of approximately $1.4 billion). Proceeds were used primarily to finance a portion of the acquisition of PHI.
See Note 4 — Mergers, Acquisitions and Dispositions and Note 7 — Impairment of Long-Lived Assets and Intangibles of the Combined Notes to Consolidated Financial Statements for additional information on acquisitions and dispositions.

Generating Resources
At December 31, 2017, the generating resources of Generation consisted of the following:
Type of CapacityMW
Owned generation assets(a)(b)
Nuclear20,310
Fossil (primarily natural gas and oil)11,723
       Renewable(c)
3,135
Owned generation assets(e)
35,168
Long-term power purchase contracts(d)
5,285
Total generating resources40,453
__________
(a)See “Fuel” for sources of fuels used in electric generation.
(b)Net generation capacity is stated at proportionate ownership share. See ITEM 2. PROPERTIES—Generation for additional information.
(c)Includes wind, hydroelectric and solar generating assets.
(d)Electric supply procured under site specific agreements.
(e)Includes EGTP generating assets that were deconsolidated from Generation's consolidated financial statements. See Note 4 — Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for additional information.
Generation has six reportable segments, the Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Power Regions, representing the different geographical areas in which Generation’s generating resources are located and Generation's customer-facing activities are conducted.
Mid-Atlantic represents operations in the eastern half of PJM, which includes Pennsylvania, New Jersey, Maryland, Virginia, West Virginia, Delaware, the District of Columbia and parts of North Carolina (approximately 33% of capacity).
Midwest represents operations in the western half of PJM, which includes portions of Illinois, Indiana, Ohio, Michigan, Kentucky and Tennessee; and the United States footprint of MISO (excluding MISO’s Southern Region), which covers all or most of North Dakota, South Dakota, Nebraska, Minnesota, Iowa, Wisconsin and the remaining parts of Illinois, Indiana, Michigan and Ohio not covered by PJM; and parts of Montana, Missouri and Kentucky (approximately 34% of capacity).
New England represents the operations within ISO-NE covering the states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont (approximately 6% of capacity).
New York represents the operations within ISO-NY, which covers the state of New York in its entirety (approximately 6% of capacity).
ERCOT represents operations within Electric Reliability Council of Texas, covering most of the state of Texas (approximately 16% of capacity).
Other Power Regions is an aggregate of regions not considered individually significant (approximately 5% of capacity).
See Note 25 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information on revenues from external customers and revenues net of purchased power and fuel expense for each of Generation's reportable segments.
Nuclear Facilities
Generation has ownership interests in fifteen nuclear generating stations currently in service, consisting of 25 units with an aggregate of 20,310 MW of capacity. Generation wholly owns all of its

nuclear generating stations, except for undivided ownership interests in three jointly-owned nuclear stations: Quad Cities (75% ownership), Peach Bottom (50% ownership), and Salem (42.59% ownership), which are consolidated on Exelon’s and Generation's financial statements relative to its proportionate ownership interest in each unit, and a 50.01% membership interest in CENG, which owns Calvert Cliffs, Nine Mile Point [excluding Long Island Power Authority's 18% undivided ownership interest in Nine Mile Point Unit 2] and Ginna nuclear stations. CENG is 100% consolidated on Exelon's and Generation’s financial statements.
Generation’s nuclear generating stations are all operated by Generation, with the exception of the two units at Salem, which are operated by PSEG Nuclear, LLC (PSEG Nuclear), an indirect, wholly owned subsidiary of PSEG. In 2017, 2016 and 2015 electric supply (in GWh) generated from the nuclear generating facilities was 69%, 67% and 68%, respectively, of Generation’s total electric supply, which also includes fossil, hydroelectric and renewable generation and electric supply purchased for resale. Generation’s wholesale and retail power marketing activities are, in part, supplied by the output from the nuclear generating stations. See ITEM 7.MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS for further discussion of Generation’s electric supply sources.
Nuclear Operations
Capacity factors, which are significantly affected by the number and duration of refueling and non-refueling outages, can have a significant impact on Generation’s results of operations. As the largest generator of nuclear power in the United States, Generation can negotiate favorable terms for the materials and services that its business requires. Generation’s operations from its nuclear plants have historically had minimal environmental impact and the plants have a safe operating history.
During 2017, 2016 and 2015, the nuclear generating facilities operated by Generation achieved capacity factors of 94.1%, 94.6% and 93.7%, respectively. The capacity factors reflect ownership percentage of stations operated by Generation and include CENG. Generation manages its scheduled refueling outages to minimize their duration and to maintain high nuclear generating capacity factors, resulting in a stable generation base for Generation’s wholesale and retail power marketing activities. During scheduled refueling outages, Generation performs maintenance and equipment upgrades in order to minimize the occurrence of unplanned outages and to maintain safe, reliable operations.
In addition to the maintenance and equipment upgrades performed by Generation during scheduled refueling outages, Generation has extensive operating and security procedures in place to ensure the safe operation of the nuclear units. Generation also has extensive safety systems in place to protect the plant, personnel and surrounding area in the unlikely event of an accident or other incident.
Regulation of Nuclear Power Generation
Generation is subject to the jurisdiction of the NRC with respect to the operation of its nuclear generating stations, including the licensing for operation of each unit. The NRC subjects nuclear generating stations to continuing review and regulation covering, among other things, operations, maintenance, emergency planning, security and environmental and radiological aspects of those stations. As part of its reactor oversight process, the NRC continuously assesses unit performance indicators and inspection results, and communicates its assessment on a semi-annual basis. All nuclear generating stations operated by Generation, except for Clinton, are categorized by the NRC in the Licensee Response Column, which is the highest of five performance bands. As of February 1, 2018, the NRC categorized Clinton in the Regulatory Response Column, which is the second highest of five performance bands. The NRC may modify, suspend or revoke operating licenses and impose civil penalties for failure to comply with the Atomic Energy Act, the regulations under such Act or the terms of the operating licenses. Changes in regulations by the NRC may require a substantial increase in capital expenditures and/or operating costs for nuclear generating facilities.

Licenses
Generation has original 40-year operating licenses from the NRC for each of its nuclear units and has received 20-year operating license renewals from the NRC for all its nuclear units except Clinton. Additionally, PSEG has received 20-year operating license renewals for Salem Units 1 and 2. On May 30, 2017, Exelon announced that Generation will permanently cease generation operations at TMI on or about September 30, 2019. On February 2, 2018, Exelon announced that Generation will permanently cease generation operations at Oyster Creek at the end of its current operating cycle in October 2018. In 2010, Generation had previously agreed to permanently cease generation operations at Oyster Creekperformance-based rate formula by the end of 2019. See Note 8 — Early Nuclear Plant Retirements of the Combined Notes to Consolidated Financial Statements for additional information regarding the early retirement of TMI. See Note 28 — Subsequent Events of the Combined Notes to Consolidated Financial Statements for additional information regarding the early retirement of Oyster Creek.

The following table summarizes the current operating license expiration dates for Generation’s nuclear facilities in service:
StationUnit 
In-Service
Date(a)
 
Current License
Expiration
Braidwood1
 1988 2046
 2
 1988 2047
Byron1
 1985 2044
 2
 1987 2046
Calvert Cliffs1
 1975 2034
 2
 1977 2036
Clinton(b)
1
 1987 2026
Dresden2
 1970 2029
 3
 1971 2031
FitzPatrick1
 1974 2034
LaSalle1
 1984 2042
 2
 1984 2043
Limerick1
 1986 2044
 2
 1990 2049
Nine Mile Point1
 1969 2029
 2
 1988 2046
Oyster Creek(c)
1
 1969 2029
Peach Bottom(d)
2
 1974 2033
 3
 1974 2034
Quad Cities1
 1973 2032
 2
 1973 2032
Ginna1
 1970 2029
Salem1
 1977 2036
 2
 1981 2040
Three Mile Island(e)
1
 1974 2034
__________
(a)Denotes year in which nuclear unit began commercial operations.
(b)Although timing has been delayed, Generation currently plans to seek license renewal for Clinton and has advised the NRC that any license renewal application would not be filed until the first quarter of 2021.
(c)Generation had previously announced and notified the NRC that it will permanently cease generation operations at Oyster Creek by the end of 2019. On February 2, 2018, Exelon announced that Generation will permanently cease generation operations at Oyster Creek at the end of its current operating cycle in October 2018.
(d)On June 7, 2016, Generation announced that it will submit a second 20-year license renewal application to NRC for Peach Bottom Units 2 and 3 in 2018.
(e)On May 30, 2017, Exelon announced that Generation will permanently cease generation operations at TMI on or about September 30, 2019 and has notified the NRC.
The operating license renewal process takes approximately four to five years from the commencement of the renewal process, which includes approximately two years for Generation to develop the application2022 and approximately two yearswould allow for the NRC to reviewsubmission of either a general rate or multi-year rate plan. On February 3, 2022, the application. To date, each granted license renewal has been for 20 years beyondICC approved a tariff that establishes the original operating license expiration. Depreciation provisions are based on the estimated useful lives of the stations,process under which reflect theComEd will reconcile its 2022 and 2023 rate year revenue requirements with actual renewal of operating licenses for all of Generation’s operating nuclear generating stations except for Oyster Creek, TMI and Clinton. In 2017, Oyster Creek and TMI depreciation provisions were based on

their 2019 expected shutdown dates. Beginning February 2018, Oyster Creek depreciation provisions will be based on its announced shutdown date of 2018. Clinton depreciation provisions are based on 2027 which is the last year of the Illinois Zero Emissions Standard. See Note 3 - Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional detail on the new Illinois legislation and Note 8 Early Nuclear Plant Retirements of the Combined Notes to Consolidated Financial Statements for additional detail on early retirements.
Nuclear Waste Storage and Disposal
There are no facilities for the reprocessing or permanent disposal of SNF currently in operation in the United States, nor has the NRC licensed any such facilities. Generation currently stores all SNF generated by its nuclear generating facilities on-site in storage pools or in dry cask storage facilities. Since Generation’s SNF storage pools generally do not have sufficient storage capacity for the life of the respective plant, Generation has developed dry cask storage facilities to support operations.
As of December 31, 2017, Generation had approximately 84,100 SNF assemblies (20,600 tons) stored on site in SNF pools or dry cask storage (this includes SNF assemblies at Zion Station, for which Generation retains ownership even though the responsibility for decommissioning Zion Station has been assumed by another party; see Note 15 — Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional information regarding Zion Station Decommissioning). All currently operating Generation-owned nuclear sites have on-site dry cask storage, except for TMI, where such storage is projected to be in operation in 2021. On-site dry cask storage in concert with on-site storage pools will be capable of meeting all current and future SNF storage requirements at Generation’s sites through the end of the license renewal periods and through decommissioning.
Forcosts. ComEd filed a discussion of matters associated with Generation’s contractspetition with the DOEICC seeking approval of a multi-year rate plan (MRP) for the disposal of SNF, see Note 23 — Commitments2024-2027 on January 17, 2023. PECO's and Contingencies of the Combined Notes to Consolidated Financial Statements.
AsDPL's electric and gas distribution costs and ACE's electric distribution costs have generally been recovered through rate case proceedings, with PECO utilizing a by-product of their operations, nuclear generating units produce LLRW. LLRW is accumulated at each generating stationfully projected future test year while DPL and permanently disposed of at licensed disposal facilities. The Federal Low-Level Radioactive Waste Policy Act of 1980 provides that states may enter into agreements to provide regional disposal facilities for LLRWACE utilize a historical test year. BGE’s electric and restrict use of those facilities to waste generated within the region. Illinoisgas distribution costs and Kentucky have entered into such an agreement, although neither statePepco’s and DPL Maryland's electric distribution costs are currently has an operational site and none is anticipated to be operational until after 2020.
Generation ships its Class A LLRW, which represents 93% of LLRW generated at its stations, to disposal facilities in Utah and South Carolina, which have enough storage capacity to store all Class A LLRW for the life of all stations in Generation's nuclear fleet. The disposal facility in South Carolina at present is only receiving LLRW from LLRW generators in South Carolina, New Jersey (which includes Oyster Creek and Salem) and Connecticut.
Generation utilizes on-site storage capacity at all its stations to store and stage for shipping Class B and Class C LLRW. Generation has a contractrecovered through 2032 to ship Class B and Class C LLRW to a disposal facility in Texas. The agreement provides for disposal of all current Class B and Class C LLRW currently stored at each station as wellmulti-year rate case proceedings, as the Class BMDPSC and Class C LLRW generated during the term ofDCPSC allow utilities to file multi-year rate plans. In certain instances, the agreement. However, because the production of LLRW from Generation’s nuclear fleet will exceed the capacity at the Texas site (3.9 million curies for 15 years beginning in 2012), Generation will still be required to utilize on-site storage at its stations for Class B and Class C LLRW. Generation currently has enough storage capacity to store all Class B and Class C LLRW for the life of all stations in Generation’s nuclear fleet. Generation continues to pursue alternative disposal strategies for LLRW, including an LLRW reduction program to minimize on-site storage and cost impacts.

Nuclear Insurance
Generation is subject to liability, property damage and other risks associated with major incidents at any of its nuclear stations, including the CENG nuclear stations. Generation has reduced its financial exposure to these risks through insurance and other industry risk-sharing provisions.Utility Registrants use specific recovery mechanisms as approved by their respective regulatory agencies. See “Nuclear Insurance” within Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for details.
For information regarding property insurance, see ITEM 2. PROPERTIES — Generation. Generation is self-insured to the extent that any losses may exceed the amount of insurance maintained or are within the policy deductible for its insured losses. Such losses could have a material adverse effect on Exelon’s and Generation’s future financial conditions and results of operations and cash flows.
Decommissioning
NRC regulations require that licensees of nuclear generating facilities demonstrate reasonable assurance that funds will be available in specified minimum amounts at the end of the life of the facility to decommission the facility. The ultimate decommissioning obligation will be funded by the NDTs. The NDTs are recorded on Exelon’s and Generation’s Consolidated Balance Sheets at December 31, 2017 at fair value of approximately $13.3 billion and have an estimated targeted annual pre-tax return of 4.8% to 6.4%, while the Nuclear AROs are recorded on Exelon’s and Generation’s Consolidated Balance Sheets at December 31, 2017 at approximately $9.7 billion and have an estimated annual average accretion of the ARO of approximately 5% through a period of approximately 30 years after the end of the extended lives of the units. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Exelon Corporation, Executive Overview; ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Critical Accounting Policies and Estimates, Nuclear Decommissioning, Asset Retirement Obligations and Nuclear Decommissioning Trust Fund Investments; and Note 3 — Regulatory Matters, Note 11 — Fair Value of Financial Assets and Liabilities and Note 15 — Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional information regarding Generation’s NDT funds and its decommissioning obligations.
Zion Station Decommissioning. On December 11, 2007, Generation entered into an Asset Sale Agreement (ASA) with EnergySolutions, Inc. and its wholly owned subsidiaries, EnergySolutions, LLC (EnergySolutions) and ZionSolutions, LLC (ZionSolutions) under which ZionSolutions assumed responsibility for decommissioning Zion Station, which is in Zion, Illinois, and ceased operation in 1998.
On September 1, 2010, Generation and EnergySolutions completed the transactions contemplated by the ASA. Specifically, Generation transferred to ZionSolutions substantially all of the assets (other than land) associated with Zion Station, including assets held in related NDT funds. In consideration for Generation’s transfer of those assets, ZionSolutions assumed decommissioning and other liabilities, excluding the obligation to dispose of SNF, associated with Zion Station. Pursuant to the ASA, ZionSolutions will periodically request reimbursement from the Zion Station-related NDT funds for costs incurred related to the decommissioning efforts at Zion Station. However, ZionSolutions is subject to certain restrictions on its ability to request reimbursement; specifically, if certain milestones as defined in the ASA are not met, all or a portion of requested reimbursements shall be deferred until such milestones are met. See Note 15 — Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional information regarding Zion Station decommissioning and see Note 2 — Variable Interest Entities of the Combined Notes to Consolidated Financial Statements for a discussion of variable interest entity considerations related to ZionSolutions.

Fossil and Renewable Facilities (including Hydroelectric)
At December 31, 2017, Generation had ownership interests in 14,858 MW of capacity in generating facilities currently in service, consisting of 11,723 MW of natural gas and oil, and 3,135 MW of renewables (wind, hydroelectric and solar). Generation wholly owns all of its fossil and renewable generating stations, with the exception of: (1) Wyman; (2) certain wind project entities and a biomass project entity with minority interest owners; and (3) ExGen Renewables Partners, LLC which is owned 49% by another owner. See Note 2 — Variable Interest Entities of the Combined Notes to Consolidated Financial Statements for additional information regarding certain of these entities which are VIEs. Generation’s fossil and renewable generating stations are all operated by Generation, with the exception of LaPorte and Wyman, which are operated by third parties. In 2017, 2016 and 2015, electric supply (in GWh) generated from owned fossil and renewable generating facilities was 12%, 10% and 8%, respectively, of Generation’s total electric supply. The majority of this output was dispatched to support Generation’s wholesale and retail power marketing activities. For additional information regarding Generation’s electric generating facilities, see ITEM 2. PROPERTIES — Exelon Generation Company, LLC and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Exelon Corporation, Executive Overview for additional information on Generation Renewable Development.
Licenses
Fossil and renewable generation plants are generally not licensed, and, therefore, the decision on when to retire plants is, fundamentally, a commercial one. FERC has the exclusive authority to license most non-Federal hydropower projects located on navigable waterways or Federal lands, or connected to the interstate electric grid, which include Generation's Conowingo Hydroelectric Project (Conowingo) and Muddy Run Pumped Storage Facility Project (Muddy Run). On August 29, 2012 and August 30, 2012, Generation submitted hydroelectric license applications to the FERC for 46-year licenses for the Conowingo and Muddy Run, respectively. On December 22, 2015, FERC issued a new 40-year license for Muddy Run. The license term expires on December 1, 2055. Based on the FERC procedural schedule, the FERC licensing process for Conowingo was not completed prior to the expiration of the plant’s license on September 1, 2014. The FERC is required to issue annual licenses for Conowingo until the new long-term license is issued. On September 10, 2014, FERC issued an annual license for Conowingo, effective as of the expiration of the previous license. The annual license renews automatically absent any further FERC action. The stations are currently being depreciated over their estimated useful lives, which includes actual and anticipated license renewal periods. Refer to Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
InsuranceComEd, Pepco, DPL and ACE customers have the choice to purchase electricity, and PECO and BGE customers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. DPL customers, with the exception of certain commercial and industrial customers, do not have the
Generation maintains business interruption insurance
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choice to purchase natural gas from competitive natural gas suppliers. The Utility Registrants remain the distribution service providers for all customers and are obligated to deliver electricity and natural gas to customers in their respective service territories while charging a regulated rate for distribution service. In addition, the Utility Registrants also retain significant default service obligations to provide electricity to certain groups of customers in their respective service areas who do not choose a competitive electric generation supplier. PECO, BGE, and DPL also retain significant default service obligations to provide natural gas to certain groups of customers in their respective service areas who do not choose a competitive natural gas supplier.
For customers that choose to purchase electric generation or natural gas from competitive suppliers, the Utility Registrants act as the billing agent and therefore do not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from a Utility Registrant, the Utility Registrants are permitted to recover the electricity and natural gas procurement costs from customers without mark-up or with a slight mark-up and therefore record the amounts in Operating revenues and Purchased power and fuel expense. As a result, fluctuations in electricity or natural gas sales and procurement costs have no significant impact on the Utility Registrants’ Net income.
See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Results of Operations and Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding electric and natural gas distribution services.
Procurement of Electricity and Natural Gas
Exelon does not generate the electricity it delivers. The Utility Registrants' electric supply for its renewablecustomers is primarily procured through contracts as directed by their respective state laws and regulatory commission actions. The Utility Registrants procure electricity supply from various approved bidders or from purchases on the PJM operated markets.
PECO's, BGE’s, and DPL's natural gas supplies are purchased from a number of suppliers for terms that currently do not exceed three years. PECO, BGE, and DPL each have annual firm transportation contracts of 443,000 mmcf, 268,000 mmcf, and 44,000 mmcf, respectively, for delivery of gas. To supplement gas transportation and supply at times of heavy winter demands and in the event of temporary emergencies, PECO, BGE, and DPL have available storage capacity from the following sources:
Peak Natural Gas Sources (in mmcf)
LNG FacilityPropane-Air Plant
Underground Storage Service Agreements(a)
PECO1,200 150 19,400 
BGE1,056 550 22,000 
DPL250 N/A3,900 
___________
(a)Natural gas from underground storage represents approximately 27%, 42%, and 33% of PECO's, BGE’s, and DPL's 2022-2023 heating season planned supplies, respectively.
PECO, BGE, and DPL have long-term interstate pipeline contracts and also participate in the interstate markets by releasing pipeline capacity or bundling pipeline capacity with gas for off-system sales. Off-system gas sales are low-margin direct sales of gas to wholesale suppliers of natural gas. Earnings from these activities are shared between the utilities and customers. PECO, BGE, and DPL make these sales as part of a program to balance its supply and cost of natural gas. The off-system gas sales are not material to PECO, BGE, and DPL.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK, Commodity Price Risk (All Registrants), for additional information regarding Utility Registrants' contracts to procure electric supply and natural gas.
Energy Efficiency Programs
The Utility Registrants are generally allowed to recover costs associated with the energy efficiency and demand response programs they offer. Each commission approved program seeks to meet mandated electric consumption reduction targets and implement demand response measures to reduce peak demand. The programs are designed to meet standards required by each respective regulatory agency.
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ComEd, with limited exceptions, earns a return on its energy efficiency costs through a regulatory asset. BGE, Pepco Maryland, DPL Maryland, and ACE earn a return on most of their energy efficiency and demand response program costs through a regulatory asset. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Capital Investment
The Utility Registrants' businesses are capital intensive and require significant investments, primarily in electric transmission and distribution and natural gas transportation and distribution facilities, to ensure the adequate capacity, reliability, and efficiency of their systems. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Liquidity and Capital Resources, for additional information regarding projected 2023 capital expenditures.
Transmission Services
Under FERC’s open access transmission policy, the Utility Registrants, as owners of transmission facilities, are required to provide open access to their transmission facilities under filed tariffs at cost-based rates approved by FERC. The Utility Registrants and their affiliates are required to comply with FERC’s Standards of Conduct regulation governing the communication of non-public transmission information between the transmission owner’s employees and wholesale merchant employees.
PJM is the regional grid operator and operates pursuant to FERC-approved tariffs. PJM is the transmission provider under, and the administrator of, the PJM Tariff. PJM operates the PJM energy, capacity, and other markets, and, through central dispatch, controls the day-to-day operations of the bulk power system for the region. The Utility Registrants are members of PJM and provide regional transmission service pursuant to the PJM Tariff. The Utility Registrants and the other transmission owners in PJM have turned over control of certain of their transmission facilities to PJM, and their transmission systems are under the dispatch control of PJM. Under the PJM Tariff, transmission service is provided on a region-wide, open-access basis using the transmission facilities of the PJM transmission owners.
The Utility Registrants' transmission rates are established based on a FERC approved formula as shown below:
Approval Date
ComEdJanuary 2008
PECODecember 2019
BGEApril 2006
PepcoApril 2006
DPLApril 2006
ACEApril 2006
Exelon’s Strategy and Outlook
Following the separation on February 1, 2022, Exelon is now a Distribution and Transmission company, focused on delivering electricity and natural gas service to our customers and communities. Exelon's businesses remain focused on maintaining industry leading operational excellence, meeting or exceeding their financial commitments, ensuring timely recovery on investments to enable customer benefits, supporting clean energy policies including those that advance our jurisdictions' clean energy targets, and continued commitment to corporate responsibility.
Exelon’s strategy is to improve reliability and operations, enhance the customer experience, and advance clean and affordable energy choices, while ensuring ratemaking mechanisms provide the utilities fair financial returns. The jurisdictions in which Exelon has operations have set some of the nation's leading clean energy targets and our strategy is to enable that future for all our stakeholders. The Utility Registrants invest in rate base that supports service to our customers and the community, including investments that sustain and improve reliability and resiliency and that enhance the service experience of our customers. The Utility Registrants make these investments prudently at a reasonable cost to customers. Exelon seeks to leverage its scale and expertise across the utilities platform through enhanced standardization and sharing of resources and best practices to achieve improved operational and financial results.
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Management continually evaluates growth opportunities aligned with Exelon’s businesses, assets, and markets, leveraging Exelon’s expertise in those areas and offering sustainable returns.
The Utility Registrants anticipate investing approximately $31 billion over the next four years in electric and natural gas infrastructure improvements and modernization projects, butincluding smart grid technology, storm hardening, advanced reliability technologies, and transmission projects, which is projected to result in an increase to current rate base of approximately $18 billion by the end of 2026. These investments provide greater reliability, improved service for our customers, increased capacity to accommodate new technologies and support a cleaner grid, and a stable return for the company.
In August 2021, Exelon announced a Path to Clean goal to collectively reduce its operations-driven GHG emissions 50% by 2030 against a 2015 baseline and to reach net zero operations-driven GHG emissions by 2050, while supporting customers and communities in achieving their GHG reduction goals (Path to Clean). Exelon's quantitative goals include its Scope 1 and 2 GHG emissions, with the exception of Scope 2 emissions associated with system losses of electric power delivered to customers ("line losses"), and build upon Exelon's long-standing commitment to reducing our GHG emissions. Exelon's Path to Clean efforts extend beyond these quantitative goals to include efforts such as customer energy efficiency programs, which support reductions in customers' direct emissions and have the potential to reduce Exelon's Scope 3 emissions and Scope 2 line losses as well. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Climate Change for additional information.
Various market, financial, regulatory, legislative, and operational factors could affect Exelon's success in pursuing its strategies. Exelon continues to assess infrastructure, operational, policy, and legal solutions to these issues. See ITEM 1A. RISK FACTORS for additional information.
Employees
The Registrants strive to create a workplace culture that promotes and embodies diversity, inclusion, innovation, and safety for their employees. In order to provide the services and products that their customers expect, the Registrants aspire to create teams that reflect the diversity of the communities that the Registrants serve. Therefore, the Registrants take steps to attract highly qualified and diverse talent and seek to create hiring and promotion practices that are equitable and neutralize any bias, including unconscious bias. The Registrants provide growth opportunities, competitive compensation and benefits, and a variety of training and development programs. The Registrants are committed to helping employees grow their skills and careers largely through numerous training opportunities; mentorship programs; continuous feedback and development discussions; and evaluations. Employees are encouraged to thrive outside the workplace as well. The Registrants provide a full suite of wellness benefits targeted at supporting work-life balance, physical, mental and financial health, and industry-leading paid leave policies.
The Registrants typically conduct an employee engagement survey every other year to help identify organizational strengths and areas of opportunity for growth. The survey results are reviewed with senior management and the Exelon Board of Directors.
Diversity Metrics
The following tables show diversity metrics for all employees and management as of December 31, 2022.
EmployeesExelonComEdPECOBGEPHIPepcoDPLACE
Female(a)(b)(c)
5,300 1,535 752 786 1,270 329 139 109 
People of Color(b)(c)
7,519 2,575 990 1,170 1,803 865 203 145 
Aged <302,026 721 361 286 424 169 85 61 
Aged 30-5010,548 3,728 1,455 1,819 2,271 739 465 357 
Aged >506,489 1,907 1,070 1,061 1,466 442 341 203 
Total Employees(d)
19,063 6,356 2,886 3,166 4,161 1,350 891 621 

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Management(e)
ExelonComEdPECOBGEPHIPepcoDPLACE
Female(a)(b)(c)
961 235 139 122 206 51 13 21 
People of Color(b)(c)
1,086 331 134 166 276 116 32 22 
Aged <3029 — 
Aged 30-501,715 510 182 265 395 120 58 40 
Aged >501,286 363 190 163 276 61 57 40 
Within 10 years of retirement eligibility1,787 520 238 226 379 91 68 55 
Total Employees in Management(d)
3,030 880 381 432 677 181 117 82 
 __________
(a)The Registrants have a particular focus on creating an environment that attracts and retains women by enabling them to stay in the workforce, grow with the company, and move up the ranks.
(b)To effectuate Exelon's pay equity goals, Exelon conducts analysis on gender and racial pay equity.
(c)Information concerning women and people of color is based on self-disclosed information.
(d)Total employees represents the sum of the aged categories.
(e)Management is defined as executive/senior level officials and managers as well as all employees who have direct reports and/or supervisory responsibilities.
Turnover Rates
As turnover is inherent, management succession planning is performed and tracked for all executives and critical key manager positions. Management frequently reviews succession planning to ensure the Registrants are prepared when positions become available.
The table below shows the average turnover rate for all employees for the last three years of 2020 to 2022.
ExelonComEdPECOBGEPHIPepcoDPLACE
Retirement Age3.71 %4.09 %4.10 %3.48 %3.79 %3.74 %4.42 %3.88 %
Voluntary2.79 %2.22 %2.71 %1.76 %2.52 %2.81 %1.46 %1.84 %
Non-Voluntary0.81 %0.60 %1.10 %1.06 %1.02 %1.95 %0.47 %0.68 %
Collective Bargaining Agreements
Approximately 44% of Exelon’s employees participate in CBAs. The following table presents employee information, including information about CBAs, as of December 31, 2022.
Total Employees Covered by CBAsNumber of CBAs
CBAs New and Renewed in 2022(a)
Total Employees Under CBAs
New and Renewed
in 2022
Exelon8,379 10 906 
ComEd3,477 — — 
PECO1,368 — — 
BGE1,414 — — 
PHI2,113 906 
Pepco890 890 
DPL621 — — 
ACE401 16 
 __________
(a)Does not include CBAs that were extended in 2022 while negotiations are ongoing for renewal.
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Environmental Matters and Regulation
The Registrants are subject to comprehensive and complex environmental legislation and regulation at the federal, state, and local levels, including requirements relating to climate change, air and water quality, solid and hazardous waste, and impacts on species and habitats.
The Exelon Board of Directors is responsible for overseeing the management of environmental matters. Exelon has a management team to address environmental compliance and strategy, including the CEO; the Senior Vice President and Chief Strategy and Sustainability Officer; as well as senior management of the Utility Registrants. Performance of those individuals directly involved in environmental compliance and strategy is reviewed and affects compensation as part of the annual individual performance review process. The Audit and Risk Committee oversees compliance with environmental laws and regulations, including environmental risks related to Exelon's operations and facilities, as well as SEC disclosures related to environmental matters. Exelon's Corporate Governance Committee has the authority to oversee Exelon’s climate change and sustainability policies and programs, as discussed in further detail below. The respective Boards of the Utility Registrants oversee environmental issues related to these companies. The Exelon Board of Directors has general oversight responsibilities for ESG matters, including strategies and efforts to protect and improve the quality of the environment.
Climate Change
As detailed below, the Registrants face climate change mitigation and transition risks as well as adaptation risks. Mitigation and transition risks include changes to the energy systems as a result of new technologies, changing customer expectations and/or voluntary GHG goals, as well as local, state or federal regulatory requirements intended to reduce GHG emissions. Adaptation risk refers to risks to the Registrants' facilities or operations that may result from changes to the physical climate and environment, such as changes to temperature, weather patterns and sea level.
Climate Change Mitigation and Transition
The Registrants support comprehensive federal climate legislation that addresses the urgent need to substantially reduce national GHG emissions while providing appropriate protections for consumers, businesses, and the economy. In the absence of comprehensive federal climate legislation, Exelon supports the EPA moving forward with meaningful regulation of GHG emissions under the Clean Air Act.
The Registrants currently are subject to, and may become subject to additional, federal and/or state legislation and/or regulations addressing GHG emissions. GHG emission sources associated with the Registrants include sulfur hexafluoride (SF6) leakage from electric transmission and distribution operations, refrigerant leakage from chilling and cooling equipment, and fossil fuel combustion in motor vehicles. In addition, PECO, BGE, and DPL, as distributors of natural gas are regulated with respect to reporting of natural gas (methane) leakage on the natural gas systems and consumer use of such natural gas.
Since its inception, Exelon has positioned itself as a leader in climate change mitigation. Exelon uses definitions and protocols provided by the World Resources Institute for its GHG inventory. In 2021, Exelon's Scope 1 and 2 GHG emissions, as revised following its separation from Constellation, were just over 5.7 million metric tons carbon dioxide equivalent using the World Resources Institute Corporate Standard Market-based accounting. Of these emissions, 0.5 million metric tons are considered to be operations-driven and in more direct control of our employees and processes. The majority of these operations-driven emissions are fugitive emissions from the gas delivery systems of Registrants PECO, BGE, and DPL. The remaining 5.2 million metric tons, approximately 91%, are the indirect emissions associated with the operation and use of the electric distribution and transmission system and primarily consists of losses resulting from the Utility Registrant's delivery of electricity to their customers (line losses). These emissions are driven primarily by customer demand for electricity and the mix of generation assets supplying energy to the electric grid. The Registrants do not own generation and must comply with applicable legal and regulatory requirements governing procurement of electricity for delivery to retail customers and use of the system to support other transmission transactions. However, the Registrants do engage in efforts that help to reduce these emissions, including customer programs to drive customer energy efficiency, help to manage peak demands, and enable distributed solar generation.
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In August 2021, Exelon announced a Path to Clean goal to collectively reduce their operations-driven GHG emissions 50% by 2030 against a 2015 baseline, and to reach net zero operations-driven GHG emissions by 2050, while also supporting customers and communities to achieve their clean energy and emissions goals. Exelon’s quantitative goals include its Scope 1 and 2 GHG emissions, with the exception of Scope 2 line losses, and builds upon Exelon's long-standing commitment to reducing our GHG emissions. Exelon's activities in support of the Path to Clean goal will include efficiency and clean electricity for operations, vehicle fleet electrification, equipment and processes to reduce sulfur hexafluoride (SF6) leakage, investments in natural gas infrastructure to minimize methane leaks and increase safety and reliability, and investment and collaboration to develop new technologies. Beyond 2030, Exelon recognizes that technology advancement and continued policy support will be needed to ensure achievement of Net-Zero by 2050. Exelon is laying the groundwork by partnering with national labs, universities and research consortia to research, develop, and pilot clean technologies that will be needed, as well as working with our states, jurisdictions and policy makers to understand the scope and scale of energy transformation, and needed policies and incentives, that will be needed to reach local ambitions for GHG emissions reductions. The Utility Registrants are also supporting customers and communities to achieve their clean energy and emissions goals through significant energy efficiency programs. During 2023 - 2026, estimated customer program energy efficiency investments across the Utility Registrants total $3.5 billion. These programs enable customer savings through home energy audits, lighting discounts, appliance recycling, home improvement rebates, equipment upgrade incentives and innovative programs like smart thermostats and combined heat and power programs.
As an energy delivery company, Exelon can play a key role in lowering GHG emissions across much of the economy in its service territories. In connecting end users of energy to electric and gas supply, Exelon can leverage its assets and customer interface to encourage efficient use of lower emitting resources as they become available. Electrification, where feasible for transportation, buildings, and industry coupled with simultaneous decarbonization of electric generation, can be a key lever for emissions reductions. To support this transition, Exelon is advocating for public policy supportive of vehicle electrification, investing in enabling infrastructure and technology, and supporting customer education and adoption. In addition, the Utility Registrants have a goal to electrify 30% of their own vehicle fleet by 2025, increasing to 50% by 2030. Clean fuels and other emerging technologies can also support the transition, lessen the strain on electric system expansion, and support energy system resiliency. Exelon, and its registrants PECO, BGE, and DPL that own gas distribution assets, are also continuing to explore these other decarbonization opportunities, supporting pilots of emerging energy technologies and clean fuels to support both operational and customer-driven emissions reductions. The energy transition may present challenges for the Utility Registrants and their service territories. Exelon believes its market and business model could be significantly affected by the transition of the energy system, such as through an increased electric load and decreased demand for natural gas, potentially accompanied by changes in technology, customer expectations, and/or regulatory structures. See ITEM 1A. RISK FACTORS. The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry.
Climate Change Adaptation
The Registrants' facilities and operations are subject to the impacts of global climate change. Long-term shifts in climactic patterns, such as sustained higher temperatures and sea level rise, may present challenges for the Registrants and their service territories. Exelon believes its operations could be significantly affected by the physical risks of climate change. See ITEM 1A. RISK FACTORS for additional information related to the Registrants' risks associated with climate change.
The Registrants' assets undergo seasonal readiness efforts to ensure they are ready for the weather projections of the summer and winter months. The Registrants consider and review national climate assessments to inform their planning. Each of the Utility Registrants also has well established system recovery plans and is investing in its systems to install advanced equipment and reinforce the local electric system, making it more weather resistant and less vulnerable to anticipated storm damage.
International Climate Change Agreements. At the international level, the United States is a party to the United Nations Framework Convention on Climate Change (UNFCCC). The Parties to the UNFCCC adopted the Paris Agreement at the 21st session of the UNFCCC Conference of the Parties (COP 21) on December 12, 2015. Under the Agreement, which became effective on November 4, 2016, the parties committed to try to limit the global average temperature increase and to develop national GHG reduction commitments. On November 4, 2020, the United States formally withdrew from the Paris Agreement, but on January 20, 2021, President Biden
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accepted the Agreement, which resulted in the United States’ formal re-entry on February 19, 2021. The United States has set an economy-wide target of reducing its net GHG emissions by 50-52% below 2005 levels by 2030. On November 11, 2022 at the UNFCCC Conference of the Parties (COP 27), President Biden recommitted the U.S. to these goals and detailed the significant domestic climate actions the U.S. had taken to spur a new era of clean American manufacturing, enhance energy security, and drive down the costs of clean energy for consumers in the U.S. and around the world.
Federal Climate Change Legislation and Regulation.On August 16, 2022, President Biden signed the Inflation Reduction Act (IRA), which aims to reduce U.S. carbon emissions and promote economic development through investments in clean and renewable energy projects. The consumer-facing clean energy tax credits created or expanded by the IRA are intended to drive rapid adoption of energy efficiency, electric transportation, and solar energy which would require Exelon's utilities to expand and modernize infrastructure, systems and services to integrate and optimize these resources.
Regulation of GHGs from Power Plants under the Clean Air Act.TheEPA’s 2015 Clean Power Plan (CPP) established regulations addressing carbon dioxide emissions from existing fossil-fired power plants under Clean Air Act Section 111(d). The CPP’s carbon pollution limits could be met through changes to the electric generation system, including shifting generation from higher-emitting units to lower- or zero-emitting units, as well as the development of new or expanded zero-emissions generation. In July 2019, the EPA published its final Affordable Clean Energy rule, which repealed the CPP and replaced it with less stringent emissions guidelines for existing fossil-fired power plants based on heat rate improvement measures that could be achieved within the fence line of individual plants. Exelon, together with a coalition of other electric utilities, filed a lawsuit in the U.S. Court of Appeals for the D.C. Circuit, challenging the rescission of the Clean Power Plan and enactment of the Affordable Clean Energy rule as unlawful. On January 19, 2021, the D.C. Circuit held the Affordable Clean Energy Rule (including its rescission of the Clean Power Plan) to be unlawful, vacated the rule, and remanded it to the EPA. The Supreme Court granted certiorari to examine the extent of the EPA's authority to regulate GHGs from power plants and, on June 30, 2022, reversed and remanded the D.C. Circuit's decision. The Supreme Court ruled that the EPA's use of generation shifting for development of standards in the Clean Power Plan went beyond Congress' intended authority under the Clean Air Act. The EPA has indicated that it will promulgate new GHG limits for existing power plants. Increased regulation of GHG emissions from power plants could increase the cost of electricity delivered or sold by the Registrants. As of February 1, 2022, following its separation from Constellation, Exelon no longer owns electric generation plants.
State Climate Change Legislation and Regulation. A number of states in which the Registrants operate have state and regional programs to reduce GHG emissions and renewable and other portfolio standards, which impact the power sector. See discussion below for additional information on renewable and other portfolio standards.
Certain northeast and mid-Atlantic states (Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia) currently participate in the RGGI. The program requires most fossil fuel-fired power plant owners and hydroelectricoperators in the region to hold allowances, purchased at auction, for each ton of CO2 emissions. Non-emitting resources do not have to purchase or hold these allowances. Pennsylvania joined RGGI in April 2022.
Broader state programs impact other sectors as well, such as the District of Columbia's Clean Energy DC Omnibus Act and cross-sector GHG reduction plans, which resulted in recent requirements for Pepco to develop 5-year and 30-year decarbonization programs and strategies. Maryland expects to meet and exceed the mandate set in the Greenhouse Gas Emissions Reduction Act to reduce statewide GHG emissions 40% (from 2006 levels) by 2030, and the state’s Climate Solutions Now Act of 2022 further updates requirements with a proposal to reduce emissions 60% (from 2006 levels) by 2031. New Jersey accelerated its goals through Executive Order 274, which establishes an interim goal of 50% reductions below 2006 levels by 2030 and affirms its goal of achieving 80% reductions by 2050 and includes programs to drive greater amounts of electrified transportation. Illinois’ climate bill, CEJA, establishes decarbonization requirements for the state to transition to 100% clean energy by 2050 and supports programs to improve energy efficiency, manage energy demand, attract clean energy investment and accelerate job creation. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on CEJA.
The Registrants cannot predict the nature of future regulations or how such regulations might impact future financial statements.
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Renewable and Clean Energy Standards. Each of the states where Exelon operates have adopted some form of renewable or clean energy procurement requirement. These standards impose varying levels of mandates for procurement of renewable or clean electricity (the definition of which varies by state) and/or energy efficiency. These are generally expressed as a percentage of annual electric load, often increasing by year. The Utility Registrants comply with these various requirements through acquiring sufficient bundled or unbundled credits such as RECs, CMCs, or ZECs, or paying an alternative compliance payment, and/or a combination of these compliance alternatives. The Utility Registrants are permitted to recover from retail customers the costs of complying with their state RPS requirements, including the procurement of RECs or other alternative energy resources. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Other Environmental Regulation
Water Quality
Under the federal Clean Water Act, NPDES permits for discharges into waterways are required to be obtained from the EPA or from the state environmental agency to which the permit program has been delegated, and permits must be renewed periodically. Certain of Exelon's facilities discharge water into waterways and are therefore subject to these regulations and operate under NPDES permits.
Under Clean Water Act Section 404 and state laws and regulations, the Registrants may be required to obtain permits for projects involving dredge or fill activities in waters of the United States.
Where Registrants’ facilities are required to secure a federal license or permit for activities that may result in a discharge to covered waters, they may be required to obtain a state water quality certification under Clean Water Act section 401.
Solid and Hazardous Waste and Environmental Remediation
CERCLA provides for response and removal actions coordinated by the EPA in the event of threatened releases of hazardous substances and authorizes the EPA either to clean up sites at which hazardous substances have created actual or potential environmental hazards or to order persons responsible for the situation to do so. Under CERCLA, generators and transporters of hazardous substances, as well as past and present owners and operators of hazardous waste sites, are strictly, jointly and severally liable for the cleanup costs of hazardous waste at sites, many of which are listed by the EPA on the National Priorities List (NPL). These PRPs can be ordered to perform a cleanup, can be sued for costs associated with an EPA-directed cleanup, may voluntarily settle with the EPA concerning their liability for cleanup costs, or may voluntarily begin a site investigation and site remediation under state oversight. Most states have also enacted statutes that contain provisions substantially similar to CERCLA. Such statutes apply in many states where the Registrants currently own or operate, or previously owned or operated, facilities, including Delaware, Illinois, Maryland, New Jersey, and Pennsylvania and the District of Columbia. In addition, RCRA governs treatment, storage and disposal of solid and hazardous wastes and cleanup of sites where such activities were conducted.
The Registrants’ operations unlesshave in the past, and may in the future, require substantial expenditures in order to comply with these Federal and state environmental laws. Under these laws, the Registrants may be liable for the costs of remediating environmental contamination of property now or formerly owned by them and of property contaminated by hazardous substances generated by them. The Registrants own or lease a number of real estate parcels, including parcels on which their operations or the operations of others may have resulted in contamination by substances that are considered hazardous under environmental laws. The Registrants and their subsidiaries are, or could become in the future, parties to proceedings initiated by the EPA, state agencies, and/or other responsible parties under CERCLA and RCRA or similar state laws with respect to a number of sites or may undertake to investigate and remediate sites for which they may be subject to enforcement actions by an agency or third-party.
ComEd’s and PECO’s environmental liabilities primarily arise from contamination at former MGP sites, which were operated by ComEd's and PECO's predecessor companies. ComEd, pursuant to an ICC order, and PECO, pursuant to settlements of natural gas distribution rate cases with the PAPUC, have an on-going process to recover certain environmental remediation costs of the MGP sites through a provision within customer rates. BGE, Pepco, DPL, and ACE do not have material contingent liabilities relating to MGP sites. The amount to be
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expended in 2023 for compliance with environmental remediation related to contamination at former MGP sites and other gas purification sites is estimated to be approximately $52 million which consists primarily of $44 million at ComEd.
As of December 31, 2022, the Registrants have established appropriate contingent liabilities for environmental remediation requirements. In addition, the Registrants may be required to make significant additional expenditures not presently determinable for other environmental remediation costs.
See Note 3 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information regarding the Registrants’ environmental matters, remediation efforts, and related impacts to the Registrants’ Consolidated Financial Statements.
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Information about our Executive Officers as of February 14, 2023
Exelon
NameAgePositionPeriod
Butler, Calvin G. Jr.53 President and Chief Executive Officer, Exelon2022 - Present
Chief Operating Officer, Exelon2021 - 2022
Senior Executive Vice President, Exelon2019 - 2022
Chief Executive Officer, Exelon Utilities2019 - 2022
Chief Executive Officer, BGE2014 - 2019
Jones, Jeanne43 Executive Vice President and Chief Financial Officer, Exelon2022 - Present
Senior Vice President, Corporate Finance, Exelon2021 - 2022
Senior Vice President and Chief Financial Officer, ComEd2018 - 2021
Glockner, David62 Executive Vice President, Compliance, Audit and Risk, Exelon2020 - Present
Chief Compliance Officer, Citadel LLC2017 - 2020
Littleton, Gayle E.50 Executive Vice President, General Counsel, Exelon2020 - Present
Partner, Jenner & Block LLP2015 - 2020
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Trpik, Joseph R.53 Senior Vice President and Corporate Controller, Exelon2022 - Present
Interim Senior Vice President & CFO, ComEd2021 - 2022
Senior Vice President & CFO, Exelon Utilities2018 - 2021
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ComEd
NameAgePositionPeriod
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Donnelly, Terence R.62 President and Chief Operating Officer, ComEd2018 - Present
Graham, Elisabeth J.44 Senior Vice President, Chief Financial Officer & Treasurer, ComEd2022 - Present
Treasurer, Exelon2018 - 2022
Rippie, E. Glenn62 Senior Vice President and General Counsel, ComEd2022 - Present
Senior Vice President and Deputy General Counsel, Energy Regulation, Exelon2022 - Present
Partner, Jenner & Block LLP2019 - 2021
Partner and Chief Financial Officer, Rooney, Rippie & Ratnaswamy, LLP2010 - 2019
Washington, Melissa53 Senior Vice President, Customer Operations, ComEd2021 - Present
Senior Vice President, Governmental and External Affairs, ComEd2019 - 2021
Vice President, Governmental and External Affairs, ComEd2019 - 2019
Vice President, External Affairs and Large Customer Services, ComEd2016 - 2019
Binswanger, Lewis63 Senior Vice President, Governmental, Regulatory and External Affairs, ComEd2022 - Present
Vice President, External Affairs, Nicor Gas2013 - 2022
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PECO
NameAgePositionPeriod
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Levine, Nicole46 Senior Vice President and Chief Operations Officer, PECO2022 - Present
Vice President, Electrical Operations, PECO2018 - 2022
Humphrey, Marissa43 Senior Vice President, Chief Financial Officer and Treasurer, PECO2022 - Present
Vice President, Regulatory Policy and Strategy (NJ/DE), PHI, DPL, and ACE2021 - 2022
Vice President, Finance, Exelon Utilities2019 - 2020
Vice President, Financial Planning and Analysis, PHI, Pepco, DPL, and ACE2016 - 2019
Murphy, Elizabeth A.63 Senior Vice President, Governmental, Regulatory and External Affairs, PECO2016 - Present
Williamson, Olufunmilayo44 Senior Vice President, Customer Operations, PECO2021 - Present
Senior Vice President, Chief Commercial Risk Officer, Exelon2017 - 2020
Gay, Anthony57 Vice President and General Counsel, PECO2019 - Present
Vice President, Governmental and External Affairs, PECO2016 - 2019
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BGE
NameAgePositionPeriod
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Dickens, Derrick58 Senior Vice President and Chief Operating Officer, BGE2021 - Present
Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2020 - 2021
Vice President, Technical Services, BGE2016 - 2020
Vahos, David M.50 Senior Vice President, Chief Financial Officer and Treasurer, BGE2016 - Present
Núñez, Alexander G. 51 Senior Vice President, Governmental, Regulatory and External Affairs, BGE2021 - Present
Senior Vice President, Regulatory Affairs and Strategy, BGE2020 - 2021
Senior Vice President, Regulatory and External Affairs, BGE2016 - 2020
Galambos, Denise60 Senior Vice President, Customer Operations, BGE2021 - Present
Vice President, Utility Oversight, Exelon Utilities2020 - 2021
Vice President, Human Resources, BGE2018 - 2020
Ralph, David56 Vice President and General Counsel, BGE2021 - Present
Associate General Counsel, BGE2019 - 2021
Assistant General Counsel, Exelon2017 - 2019
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PHI, Pepco, DPL, and ACE
NameAgePositionPeriod
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Olivier, Tamla50 Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Customer Operations, BGE2020 - 2021
Senior Vice President, Constellation NewEnergy, Inc.2016 - 2020
Barnett, Phillip S.59 Senior Vice President, Chief Financial Officer and Treasurer, PHI, Pepco, DPL, and ACE2018 - Present
Oddoye, Rodney46 Senior Vice President, Governmental, Regulatory and External Affairs, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Governmental and External Affairs, BGE2020 - 2021
Vice President, Customer Operations, BGE2018 - 2020
Bancroft, Anne56 Vice President and General Counsel, PHI, Pepco, DPL, and ACE2021 - Present
Associate General Counsel, Exelon2017 - 2021
Bell-Izzard, Morlon57 Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2021 - Present
Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2019 - 2021
Director, Utility Performance Assessment, Exelon2016 - 2019
ITEM 1A.RISK FACTORS
Each of the Registrants operates in a complex market and regulatory environment that involves significant risks, many of which are beyond that Registrant’s direct control. Such risks, which could negatively affect one or more of the Registrants’ consolidated financial statements, fall primarily under the categories below:
Risks related to market and financial factors primarily include:
the demand for electricity, reliability of service, and affordability in the markets where the Utility Registrants conduct their business,
the ability of the Utility Registrants to operate their respective transmission and distribution assets, their ability to access capital markets, and the impacts on their results of operations, financial condition or liquidity/cash flows due to public health crises, epidemics or pandemics, such as COVID-19, and
emerging technologies and business models, including those related to climate change mitigation and transition to a low carbon economy.
Risks related to legislative, regulatory, and legal factors primarily include changes to, and compliance with, the laws and regulations that govern:
utility regulatory business models,
environmental and climate policy, and
tax policy.
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Risks related to operational factors primarily include:
changes in the global climate could produce extreme weather events, which could put the Registrant’s facilities at risk, and such changes could also affect the levels and patterns of demand for energy and related services,
the ability of the Utility Registrants to maintain the reliability, resiliency, and safety of their energy delivery systems, which could affect their ability to deliver energy to their customers and affect their operating costs, and
physical and cyber security risks for the Utility Registrants as the owner-operators of transmission and distribution facilities.
Risks related to the separation primarilyinclude:
challenges to achieving the benefits of separation and
performance by contractExelon and Constellation under the transaction agreements, including indemnification responsibilities.
There may be further risks and uncertainties that are not presently known or financing agreements. Referthat are not currently believed to be material that could negatively affect the Registrants' consolidated financial statements in the future.
Risks Related to Market and Financial Factors
The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry (All Registrants).
Advancements in power generation technology, including commercial and residential solar generation installations and commercial micro turbine installations, are improving the cost-effectiveness of customer self-supply of electricity. Improvements in energy storage technology, including batteries and fuel cells, could also better position customers to meet their around-the-clock electricity requirements. Improvements in energy efficiency of lighting, appliances, equipment and building materials will also affect energy consumption by customers. Changes in power generation, storage, and use technologies could have significant effects on customer behaviors and their energy consumption.
These developments could affect levels of customer-owned generation, customer expectations, and current business models and make portions of the Utility Registrants' transmission and/or distribution facilities uneconomic prior to the end of their useful lives. Increasing pressure from both the private and public sectors to take actions to mitigate climate change could also push the speed and nature of this transition. These factors could affect the Registrants’ consolidated financial statements through, among other things, increased operating and maintenance expenses, increased capital expenditures, and potential asset impairment charges or accelerated depreciation over shortened remaining asset useful lives.
Market performance and other factors could decrease the value of employee benefit plan assets and could increase the related employee benefit plan obligations, which then could require significant additional funding (All Registrants).
Disruptions in the capital markets and their actual or perceived effects on particular businesses and the greater economy could adversely affect the value of the investments held within Exelon’s employee benefit plan trusts. The asset values are subject to market fluctuations and will yield uncertain returns, which could fall below Exelon's projected return rates. A decline in the market value of the pension and OPEB plan assets would increase the funding requirements associated with Exelon’s pension and OPEB plan obligations. Additionally, Exelon’s pension and OPEB plan liabilities are sensitive to changes in interest rates. As interest rates decrease, the liabilities increase, potentially increasing benefit costs and funding requirements. Changes in demographics, including increased numbers of retirements or changes in life expectancy assumptions or changes to Social Security or Medicare eligibility requirements could also increase the costs and funding requirements of the obligations related to the pension and OPEB plans. See Note 1314Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information.
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The Registrants could be negatively affected by unstable capital and credit markets (All Registrants).
The Registrants rely on the capital markets, particularly for publicly offered debt, as well as the banking and commercial paper markets, to meet their financial commitments and short-term liquidity needs. Disruptions in the capital and credit markets in the United States or abroad could negatively affect the Registrants’ ability to access the capital markets or draw on their respective bank revolving credit facilities. The banks may not be able to meet their funding commitments to the Registrants if they experience shortages of capital and liquidity or if they experience excessive volumes of borrowing requests within a short period of time. The inability to access capital markets or credit facilities, and longer-term disruptions in the capital and credit markets because of uncertainty, changing or increased regulation, reduced alternatives, or failures of significant financial institutions could result in the deferral of discretionary capital expenditures, or require a reduction in dividend payments or other discretionary uses of cash. In addition, the Registrants have exposure to worldwide financial markets, including Europe, Canada, and Asia. Disruptions in these markets could reduce or restrict the Registrants’ ability to secure sufficient liquidity or secure liquidity at reasonable terms. As of December 31, 2022, approximately 23%, 10%, and 16% of the Registrants’ available credit facilities were with European, Canadian, and Asian banks, respectively. Additionally, higher interest rates may put pressure on the Registrants’ overall liquidity profile, financial health and impact financial results. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on financingthe credit facilities.
If any of the Registrants were to experience a downgrade in its credit ratings to below investment grade or otherwise fail to satisfy the credit standards in its agreements with its counterparties or regulatory financial requirements, it would be required to provide significant amounts of collateral that could affect its liquidity and could experience higher borrowing costs (All Registrants).
The Utility Registrants' operating agreements with PJM and PECO's, BGE's, and DPL's natural gas procurement contracts contain collateral provisions that are affected by their credit rating and market prices. If certain wholesale market conditions were to exist and the Utility Registrants were to lose their investment grade credit ratings (based on their senior unsecured debt ratings), they would be required to provide collateral in the forms of letters of credit or cash, which could have a material adverse effect upon their remaining sources of liquidity. PJM collateral posting requirements will generally increase as market prices rise and decrease as market prices fall. Collateral posting requirements for PECO, BGE, and DPL, with respect to their natural gas supply contracts, will generally increase as forward market prices fall and decrease as forward market prices rise. If the Utility Registrants were downgraded, they could experience higher borrowing costs as a result of the downgrade. In addition, changes in ratings methodologies by the agencies could also have an adverse negative impact on the ratings of the Utility Registrants.
The Utility Registrants conduct their respective businesses and operate under governance models and other arrangements and procedures intended to assure that the Utility Registrants are treated as separate, independent companies, distinct from Exelon and other Exelon subsidiaries in order to isolate the Utility Registrants from Exelon and other Exelon subsidiaries in the event of financial difficulty at Exelon or another Exelon subsidiary. These measures (commonly referred to as “ring-fencing”) could help avoid or limit a downgrade in the credit ratings of the Utility Registrants in the event of a reduction in the credit rating of Exelon. Despite these ring-fencing measures, the credit ratings of the Utility Registrants could remain linked, to some degree, to the credit ratings of Exelon. Consequently, a reduction in the credit rating of Exelon could result in a reduction of the credit rating of some or all of the Utility Registrants. A reduction in the credit rating of a Utility Registrant could have a material adverse effect on the Utility Registrant.
See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources — Credit Matters and Cash Requirements — Security Ratings for additional information regarding the potential impacts of credit downgrades on the Registrants’ cash flows.
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The impacts of significant economic downturns or increases in customer rates, could lead to decreased volumes delivered and increased expense for uncollectible customer balances (All Registrants).
The impacts of significant economic downturns on the Utility Registrants' customers and the related regulatory limitations on residential service terminations for the Utility Registrants, could result in an increase in the number of uncollectible customer balances and related expense. Further, increases in customer rates, including those related to increases in purchased power and natural gas prices, could result in declines in customer usage and lower revenues for the Utility Registrants that do not have decoupling mechanisms.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK for additional information on the Registrants’ credit risk.
Public health crises, epidemics, or pandemics, such as COVID-19 could negatively impact the Registrants' results (All Registrants).
COVID-19 disrupted economic activity in the Registrants’ respective markets and negatively affected the Registrants’ results of operations in 2020. However, the financial impacts were not material for the years ended December 31, 2021 and December 31, 2022, other than the 2022 impairment disclosure within Note 11 — Asset Impairments. The Registrants cannot predict the full extent of the impacts of COVID-19, which will depend on, among other things, the rate, and public perceptions of the effectiveness, of vaccinations and rate of resumption of business activity. In addition, any future widespread pandemic or other local or global health issue could adversely affect our vendors, competitors or customers and customer demand as well as the Registrants’ ability to operate their transmission and distribution assets. See Item 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - Executive Overview for additional information.
The Registrants could be negatively affected by the impacts of weather (All Registrants).
Weather conditions directly influence the demand for electricity and natural gas and affect the price of energy commodities. Temperatures above normal levels in the summer tend to increase summer cooling electricity demand and revenues, and temperatures below normal levels in the winter tend to increase winter heating electricity and gas demand and revenues. Moderate temperatures adversely affect the usage of energy and resulting operating revenues at PECO and DPL Delaware. Due to revenue decoupling, operating revenues from electric distribution at ComEd, BGE, Pepco, DPL Maryland, and ACE are not affected by abnormal weather.
Extreme weather conditions or damage resulting from storms could stress the Utility Registrants' transmission and distribution systems, communication systems, and technology, resulting in increased maintenance and capital costs and limiting each company’s ability to meet peak customer demand. First and third quarter financial results, in particular, are substantially dependent on weather conditions, and could make period comparisons less relevant.
Climate change projections suggest increases to summer temperature and humidity trends, as well as more erratic precipitation and storm patterns over the long-term in the areas where the Utility Registrants have transmission and distribution assets. The frequency in which weather conditions emerge outside the current expected climate norms could contribute to weather-related impacts discussed above.
Long-lived assets, goodwill, and other assets could become impaired (All Registrants).
Long-lived assets represent the single largest asset class on the Registrants’ statements of financial position. In addition, Exelon, ComEd, and PHI have material goodwill balances.
The Registrants evaluate the recoverability of the carrying value of long-lived assets to be held and used whenever events or circumstances indicating a potential impairment exist. Factors such as, but not limited to, the business climate, including current and future energy and market conditions, environmental regulation, and the condition of assets are considered.
ComEd and PHI perform an assessment for possible impairment of their goodwill at least annually or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the
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reporting units below their carrying amount. Regulatory actions or changes in significant assumptions, including discount and growth rates, utility sector market performance and transactions, projected operating and capital cash flows for ComEd’s, Pepco’s, DPL’s, and ACE’s business, and the fair value of debt, could potentially result in future impairments of Exelon’s, ComEd's, and PHI’s goodwill.
An impairment would require the Registrants to reduce the carrying value of the long-lived asset or goodwill to fair value through a non-cash charge to expense by the amount of the impairment. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Critical Accounting Policies and Estimates, Note 7 — Property, Plant, and Equipment, Note 11 — Asset Impairments, and Note 12 — Intangible Assets of the Combined Notes to the Consolidated Financial Statements for additional information on long-lived asset impairments and goodwill impairments.
The Registrants could incur substantial costs in the event of non-performance by third-parties under indemnification agreements, or when the Registrants have guaranteed their performance (All Registrants).
The Registrants have entered into various agreements with counterparties that require those counterparties to reimburse a Registrant and hold it harmless against specified obligations and claims. To the extent that any of these counterparties are affected by deterioration in their creditworthiness or the agreements are otherwise determined to be unenforceable, the affected Registrant could be held responsible for the obligations. Each of the Utility Registrants has transferred its former generation business to a third party and in each case the transferee has agreed to assume certain obligations and to indemnify the applicable Utility Registrant for such obligations. In connection with the restructurings under which ComEd, PECO, and BGE transferred their generating assets to Constellation, Constellation assumed certain of ComEd’s, PECO’s, and BGE's rights and obligations with respect to their former generation businesses. Further, ComEd, PECO, and BGE have entered into agreements with third parties under which the third-party agreed to indemnify ComEd, PECO, or BGE for certain obligations related to their respective former generation businesses that have been assumed by Constellation as part of the restructuring. If the third-party, Constellation, or the transferee of Pepco's, DPL's, or ACE’s generation facilities experienced events that reduced its creditworthiness or the indemnity arrangement became unenforceable, the applicable Utility Registrant could be liable for any existing or future claims. In addition, the Utility Registrants have residual liability under certain laws in connection with their former generation facilities.
The Registrants have issued indemnities to third parties regarding environmental or other matters in connection with purchases and sales of assets, including several of the Utility Registrants in connection with Constellation's absorption of their former generating assets. The Registrants could incur substantial costs to fulfill their obligations under these indemnities.
The Registrants have issued guarantees of the performance of third parties, which obligate the Registrants to perform if the third parties do not perform. In the event of non-performance by those third parties, the Registrants could incur substantial cost to fulfill their obligations under these guarantees.
Risks Related to Legislative, Regulatory, and Legal Factors
The Registrants' businesses are highly regulated and electric and gas revenue and earnings could be negatively affected by legislative and/or regulatory actions (All Registrants).
Substantial aspects of the Registrants' businesses are subject to comprehensive Federal or state legislation and/or regulation.
The Utility Registrants' consolidated financial statements are heavily dependent on the ability of the Utility Registrants to recover their costs for the retail purchase, transmission, and distribution of power and natural gas to their customers.
Fundamental changes in regulations or adverse legislative actions affecting the Registrants’ businesses would require changes in their business planning models and operations. The Registrants cannot predict when or whether legislative or regulatory proposals could become law or what their effect would be on the Registrants.
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Changes in the Utility Registrants' respective terms and conditions of service, including their respective rates, along with adoption of new rate structures and constructs, or establishment of new rate cases, are subject to regulatory approval proceedings and/or negotiated settlements that are at times contentious, lengthy, and subject to appeal, which lead to uncertainty as to the ultimate result, and which could introduce time delays in effectuating rate changes (All Registrants).
The Utility Registrants are required to engage in regulatory approval proceedings as a part of the process of establishing the terms and rates for their respective services, adoption of new rate structures and constructs or establishment of new rate cases. These proceedings typically involve multiple parties, including governmental bodies and officials, consumer advocacy groups, and various consumers of energy, who have differing concerns but who have the common objective of limiting rate increases or even reducing rates. Decisions are subject to appeal, potentially leading to additional uncertainty associated with the approval proceedings. The potential duration of such proceedings creates a risk that rates ultimately approved by the applicable regulatory body may not be sufficient for a Utility Registrant to recover its costs by the time the rates become effective. Established rates are also subject to subsequent prudency reviews by state regulators, whereby various portions of rates could be adjusted, subject to refund or disallowed, including recovery mechanisms for costs associated with the procurement of electricity or gas, credit losses, MGP remediation, smart grid infrastructure, and energy efficiency and demand response programs. In certain instances, the Utility Registrants could agree to negotiated settlements related to various rate matters, customer initiatives, or franchise agreements. Generation maintains both property damageThese settlements are subject to regulatory approval. The ultimate outcome and liability insurance. For property damagetiming of regulatory rate proceedings have a significant effect on the ability of the Utility Registrants to recover their costs or earn an adequate return. See Note 3Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information.
The Registrants could be subject to higher costs and/or penalties related to mandatory reliability standards, including the likely exposure of the Utility Registrants to the results of PJM’s RTEP and liabilityNERC compliance requirements (All Registrants).
The Utility Registrants as users, owners, and operators of the bulk power transmission system are subject to mandatory reliability standards promulgated by NERC and enforced by FERC. The standards are based on the functions that need to be performed to ensure the bulk power system operates reliably and are guided by reliability and market interface principles. Compliance with or changes in the reliability standards could subject the Registrants to higher operating costs and/or increased capital expenditures. In addition, the ICC, PAPUC, MDPSC, DCPSC, DEPSC, and NJBPU impose certain distribution reliability standards on the Utility Registrants. If the Utility Registrants were found in non-compliance with the Federal and state mandatory reliability standards, they could be subject to remediation costs as well as sanctions, which could include substantial monetary penalties.
The Registrants could incur substantial costs to fulfill their obligations related to environmental and other matters (All Registrants).
The Registrants are subject to extensive environmental regulation and legislation by local, state, and Federal authorities. These laws and regulations affect the way the Registrants conduct their operations and make capital expenditures including how they handle air and water emissions, hazardous and solid waste, and activities affecting surface waters, groundwater, and aquatic and other species. Violations of these requirements could subject the Registrants to enforcement actions, capital expenditures to bring existing facilities into compliance, additional operating costs for remediation and clean-up costs, civil penalties and exposure to third parties’ claims for alleged health or property damages, or operating restrictions to achieve compliance. In addition, the Registrants are subject to liability under these laws for the remediation costs for environmental contamination of property now or formerly owned by the Registrants and of property contaminated by hazardous substances they generated or released. Remediation activities associated with MGP operations Generationconducted by predecessor companies are one component of such costs. Also, the Registrants are currently involved in several proceedings relating to sites where hazardous substances have been deposited and could be subject to additional proceedings in the future. See ITEM 1. BUSINESS — Environmental Matters and Regulation for additional information.
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The Registrants could be negatively affected by federal and state RPS and/or energy conservation legislation, along with energy conservation by customers (All Registrants).
Changes to current state legislation or the development of Federal legislation that requires the use of clean, renewable, and alternate fuel sources could significantly impact the Utility Registrants, especially if timely cost recovery is not allowed.
Federal and state legislation mandating the implementation of energy conservation programs that require the implementation of new technologies, such as smart meters and smart grid, could increase capital expenditures and could significantly impact the Utility Registrants consolidated financial statements if timely cost recovery is not allowed. These energy conservation programs, regulated energy consumption reduction targets, and new energy consumption technologies could cause declines in customer energy consumption and lead to a decline in the Registrants' earnings, if timely recovery is not allowed. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Renewable and Clean Energy Standards and "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
The Registrants could be negatively affected by challenges to tax positions taken, tax law changes, and the inherent difficulty in quantifying potential tax effects of business decisions. (All Registrants).
The Registrants are required to make judgments to estimate their obligations to taxing authorities, which includes general tax positions taken and associated reserves established. Tax obligations include, but are not limited to: income, real estate, sales and use, and employment-related taxes and ongoing appeal issues related to these tax matters. All tax estimates could be subject to challenge by the tax authorities. Additionally, earnings may be impacted due to changes in federal or local/state tax laws, and the inherent difficulty of estimating potential tax effects of ongoing business decisions. See Note 1Significant Accounting Policies and Note 13Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Legal proceedings could result in a negative outcome, which the Registrants cannot predict (All Registrants).
The Registrants are involved in legal proceedings, claims, and litigation arising out of their business operations. The material ones are summarized in Note 18Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Adverse outcomes in these proceedings could require significant expenditures, result in lost revenue, or restrict, or disrupt business activities.
The Registrants could be subject to adverse publicity and reputational risks, which make them vulnerable to negative customer perception and could lead to increased regulatory oversight or other consequences (All Registrants).
The Registrants could be the subject of public criticism. Adverse publicity of this nature could render public service commissions and other regulatory and legislative authorities less likely to view energy companies in a favorable light, and could cause those companies, including the Registrants, to be susceptible to less favorable legislative and regulatory outcomes, as well as increased regulatory oversight and more stringent legislative or regulatory requirements.
Exelon and ComEd have received requests for information related to an SEC investigation into their lobbying activities. The outcome of the investigations could have a material adverse effect on their reputation and consolidated financial statements (Exelon and ComEd).
On October 22, 2019, the SEC notified Exelon and ComEd that it had opened an investigation into their lobbying activities in the state of Illinois. Exelon and ComEd have cooperated fully, including by providing all information requested by the SEC, and intend to continue to cooperate fully and expeditiously with the SEC. The outcome of the SEC’s investigation cannot be predicted and could subject Exelon and ComEd to civil penalties, sanctions, or other remedial measures. Any of the foregoing, as well as the appearance of non-compliance with anti-corruption and anti-bribery laws, could have an adverse impact on Exelon’s and ComEd’s reputations or relationships with regulatory and legislative authorities, customers, and other stakeholders, as well as their consolidated financial
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statements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
If ComEd violates its Deferred Prosecution Agreement announced on July 17, 2020, it could have an adverse effect on the reputation and consolidated financial statements of Exelon and ComEd (Exelon and ComEd).
On July 17, 2020, ComEd entered into a Deferred Prosecution Agreement (DPA) with the U.S. Attorney’s Office for the Northern District of Illinois (USAO) to resolve the USAO’s investigation into Exelon’s and ComEd’s lobbying activities in the State of Illinois. Exelon was not made a party to the DPA and the investigation by the USAO into Exelon’s activities ended with no charges being brought against Exelon. Under the DPA, the USAO filed a single charge alleging that ComEd improperly gave and offered to give jobs, vendor subcontracts, and payments associated with those jobs and subcontracts for the benefit of the Speaker of the Illinois House of Representatives and the Speaker’s associates, with the intent to influence the Speaker’s action regarding legislation affecting ComEd’s interests. The DPA provides that the USAO will defer any prosecution of such charge and any other criminal or civil case against ComEd in connection with the matters identified therein for a three-year period subject to certain obligations of ComEd, including, but not limited to, the following: (i) payment to the U.S. Treasury of $200 million; (ii) continued full cooperation with the government’s investigation; and (iii) ComEd’s adoption and maintenance of remedial measures involving compliance and reporting undertakings as specified in the DPA. If ComEd is found to have breached the terms of the DPA, the USAO may elect to prosecute, or bring a civil action against, ComEd for conduct alleged in the DPA or known to the government, which could result in fines or penalties and could have an adverse impact on Exelon’s and ComEd’s reputation or relationships with regulatory and legislative authorities, customers and other stakeholders, as well as their consolidated financial statements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
Risks Related to Operational Factors
The Registrants are subject to risks associated with climate change (All Registrants).
The Registrants periodically perform analyses to better understand long-term projections of climate change and how those changes in the physical environments where they operate could affect their facilities and operations. The Registrants primarily operate in the Midwest and Mid-Atlantic of the United States, areas that historically have been prone to various types of severe weather events, and as such the Registrants have well-developed response and recovery programs based on these historical events. However, the Registrants’ physical facilities could be at greater risk of damage as changes in the global climate affect temperature and weather patterns, or be placed at greater risk of damage should climate changes result in more intense, frequent and extreme weather events, elevated levels of precipitation, sea level rise, increased surface water temperatures, and/or other effects. Over time, the Registrants are making additional investments to protect their facilities from physical climate-related risks.
In addition, changes to the climate may impact levels and patterns of demand for energy and related services, which could affect Registrants’ operations. Over time, the Registrants are making additional investments to adapt to changes in operational requirements to manage demand changes and customer expectations caused by climate change.
Climate Change risks include changes to the energy systems due to new technologies, changing customer expectations and/or voluntary GHG goals, as well as local, state, or federal regulatory requirements intended to reduce GHG emissions. The Registrants also periodically perform analyses of potential energy system transition pathways to reduce economy-wide GHG emissions to mitigate climate change. To the extent additional GHG reduction legislation and/or regulation becomes effective at the Federal and/or state levels, the Registrants could incur costs to further limit the GHG emissions from their operations or otherwise comply with applicable requirements. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Climate Change and ITEM 1.A. "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
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The Utility Registrants' operating costs are affected by their ability to maintain the availability and reliability of their delivery and operational systems (All Registrants).
Failures of the equipment or facilities used in the Utility Registrants' delivery systems could interrupt the electric transmission and electric and natural gas delivery, which could result in a loss of revenues and an increase in maintenance and capital expenditures. Equipment or facilities failures can be due to several factors, including natural causes such as weather or information systems failure. Specifically, if the implementation of AMI, smart grid, or other technologies in the Utility Registrants' service territory fail to perform as intended or are not successfully integrated with billing and other information systems, or if any of the financial, accounting, or other data processing systems fail or have other significant shortcomings, the Utility Registrants' financial results could be negatively impacted. In addition, dependence upon automated systems could further increase the risk that operational system flaws or internal and/or external tampering or manipulation of those systems will result in losses that are difficult to detect.
Regulated utilities, which are required to provide service to all customers within their service territory, have generally been afforded liability protections against claims by customers relating to failure of service. Under Illinois law, however, ComEd could be required to pay damages to its customers in some circumstances involving extended outages affecting large numbers of its customers, which could be material.
The Registrants are subject to physical security and cybersecurity risks (All Registrants).
The Registrants face physical security and cybersecurity risks. Threat sources, including sophisticated nation-state actors, continue to seek to exploit potential vulnerabilities in the electric and natural gas utility industry, grid infrastructure, and other energy infrastructures, and these attacks and disruptions, both physical and cyber, are becoming increasingly sophisticated and dynamic. Continued implementation of advanced digital technologies increases the potentially unfavorable impacts of such attacks. Additionally, the U.S. government has warned that the Ukraine conflict may increase the risks of attacks targeting critical infrastructure in the United States.
A security breach of the Registrants' physical assets or information systems or those of the Registrants competitors, vendors, business partners and interconnected entities in RTOs and ISOs, or regulators could materially impact Registrants by, among other things, impairing the availability of electricity and gas distributed by Registrants and/or the reliability of transmission and distribution systems, impairing the availability of vendor services and materials that the Registrants rely on to maintain their operations, or by leading to the theft or inappropriate release of certain types of information, including critical infrastructure information, sensitive customer, vendor, or employee data, or other confidential data. The risk of these events and security breaches occurring continues to intensify, and while the Registrants have been, and will likely continue to be, subjected to physical and cyber-attacks, to date none have directly experienced a material breach or material disruption to its network or information systems or our operations. However, as such attacks continue to increase in sophistication and frequency, the Registrants may be unable to prevent all such attacks in the future.
If a significant security breach were to occur, the Registrants' reputation could be negatively affected, customer confidence in the Registrants or others in the industry could be diminished, or the Registrants could be subject to legal claims, loss of revenues, increased costs, or operations shutdown. Moreover, the amount and scope of insurance maintained against losses resulting from any such security breaches may not be sufficient to cover losses or otherwise adequately compensate for any disruptions to business that could result.
The Utility Registrants' deployment of smart meters throughout their service territories could increase the risk of damage from an intentional disruption of the system by third parties.
In addition, new or updated security regulations or unforeseen threat sources could require changes in current measures taken by the Registrants or their business operations and could adversely affect their consolidated financial statements.
The Registrants’ employees, contractors, customers, and the general public could be exposed to a risk of injury due to the nature of the energy industry (All Registrants).
Employees and contractors throughout the organization work in, and customers and the general public could be exposed to, potentially dangerous environments near the Registrants’ operations. As a result, employees,
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contractors, customers, and the general public are at some risk for serious injury, including loss of life. These risks include gas explosions, pole strikes, and electric contact cases.
Natural disasters, war, acts and threats of terrorism, pandemic, and other significant events could negatively impact the Registrants' results of operations, ability to raise capital and future growth (All Registrants).
The Utility Registrants' distribution and transmission infrastructures could be affected by natural disasters and extreme weather events, which could result in increased costs, including supply chain costs. An extreme weather event within the Utility Registrants’ service areas can also directly affect their capital assets, causing disruption in service to customers due to downed wires and poles or damage to other operating equipment.
The impact that potential terrorist attacks could have on the industry and the Registrants is uncertain. The Registrants face a risk that their operations would be direct targets or indirect casualties of an act of terror. Any retaliatory military strikes or sustained military campaign could affect their operations in unpredictable ways, such as changes in insurance markets and disruptions of fuel supplies and markets, particularly oil. Furthermore, these catastrophic events could compromise the physical or cybersecurity of the Registrants' facilities, which could adversely affect the Registrants' ability to manage their businesses effectively. Instability in the financial markets as a result of terrorism, war, natural disasters, pandemic, credit crises, recession, or other factors also could result in a decline in energy consumption or interruption of fuel or the supply chain. In addition, the implementation of security guidelines and measures has resulted in and is expected to continue to result in increased costs.
The Registrants could be significantly affected by the outbreak of a pandemic. Exelon has plans in place to respond to a pandemic. However, depending on the severity of a pandemic and the resulting impacts to workforce and other resource availability, the ability to operate Exelon's transmission and distribution assets could be adversely affected.
In addition, Exelon maintains a level of insurance coverage consistent with industry practices against property, casualty, and cybersecurity losses subject to unforeseen occurrences or catastrophic events that could damage or destroy assets or interrupt operations. However, there can be no assurance that the amount of insurance will be adequate to address such property and casualty losses.
The Registrants’ businesses are capital intensive, and their assets could require significant expenditures to maintain and are subject to operational failure or be impacted by lack of availability of critical parts, which could result in potential liability (All Registrants).
The Utility Registrants’ businesses are capital intensive and require significant investments in transmission and distribution infrastructure projects. Equipment, even if maintained in accordance with good utility practices, is subject to operational failure, including events that are beyond the Utility Registrants’ control, and could require significant expenditures to operate efficiently. Additionally, if critical parts are not available, it may impact the timing of execution of capital projects. The Registrants' consolidated financial statements could be negatively affected if they were unable to effectively manage their capital projects or raise the necessary capital, or if they are deemed liable for operational failure. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources for additional information regarding the Registrants’ potential future capital expenditures.
The Utility Registrants' respective ability to deliver electricity, their operating costs, and their capital expenditures could be negatively impacted by transmission congestion and failures of neighboring transmission systems (All Registrants).
Demand for electricity within the Utility Registrants' service areas could stress available transmission capacity requiring alternative routing or curtailment of electricity usage. Also, insufficient availability of electric supply to meet customer demand could jeopardize the Utility Registrants' ability to comply with reliability standards and strain customer and regulatory agency relationships. As with all utilities, potential concerns over transmission capacity or generation facility retirements could result in PJM or FERC requiring the Utility Registrants to upgrade or expand their respective transmission systems through additional capital expenditures.
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PJM’s systems and operations are designed to ensure the reliable operation of the transmission grid and prevent the operations of one utility from having an adverse impact on the operations of the other utilities. However, service interruptions at other utilities may cause interruptions in the Utility Registrants’ service areas.
The Registrants' performance could be negatively affected if they fail to attract and retain an appropriately qualified workforce (All Registrants).
Certain events, such as the separation transaction, an employee strike, loss of employees, loss of contract resources due to a major event, and an aging workforce without appropriate replacements, could lead to operating challenges and increased costs for the Registrants. The challenges include lack of resources, loss of knowledge and a lengthy time period associated with skill development. In this case, costs, including costs for contractors to replace employees, productivity costs, and safety costs, could arise. The Registrants are particularly affected due to the specialized knowledge required of the technical and support employees for their transmission and distribution operations as well as areas where new technologies are pertinent.
The Registrants’ performance could be negatively affected by poor performance of third-party contractors that perform periodic or ongoing work (All Registrants).
All Registrants rely on third-party contractors to perform operations, maintenance, and construction work. Performance standards typically are included in all contractual obligations, but poor performance may impact the capital execution plan or operations, or have adverse financial or reputational consequences.
The Registrants could make acquisitions or investments in new business initiatives and new markets, which may not be successful or achieve the intended financial results (All Registrants).
The Utility Registrants face risks associated with their regulatory-mandated initiatives, such as smart grids and and broader beneficial electrification. These risks include, but are not limited to, cost recovery, regulatory concerns, cybersecurity, and obsolescence of technology. Such initiatives may not be successful.
Risks Related to the Separation (Exelon)
The separation may not achieve some or all of the benefits anticipated by Exelon and, following the separation, Exelon's common stock price may underperform relative to Exelon's expectations.
By separating the Utility Registrants and Constellation, Exelon created two publicly traded companies with the resources necessary to best serve customers and sustain long-term investment and operating excellence. The separate companies are expected to create value by having the strategic flexibility to focus on their unique customer, market and community priorities. However, the separation may not provide such results on the scope or scale that Exelon anticipates, and Exelon may not realize the anticipated benefits of the separation. Failure to do so could have a material adverse effect on Exelon's financial statements and its common stock price.
In connection with the separation into two public companies, Exelon and Constellation will indemnify each other for certain liabilities. If Exelon is required to pay under these indemnities to Constellation, Exelon's financial results could be negatively impacted. The Constellation indemnities may not be sufficient to hold Exelon harmless from the full amount of liabilities for which Constellation will be allocated responsibility, and Constellation may not be able to satisfy its indemnification obligations in the future.
Pursuant to the separation agreement and certain other agreements between Exelon and Constellation, each party will agree to indemnify the other for certain liabilities, in each case for uncapped amounts. Indemnities that Exelon may be required to provide Constellation are not subject to any cap, may be significant and could negatively impact its business. Third parties could also seek to hold Exelon responsible for any of the liabilities that Constellation has agreed to retain. Any amounts Exelon is required to pay pursuant to these indemnification obligations and other liabilities could require Exelon to divert cash that would otherwise have been used in furtherance of its operating business. Further, the indemnities from Constellation for Exelon's benefit may not be
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sufficient to protect Exelon against the full amount of such liabilities, and Constellation may not be able to fully satisfy its indemnification obligations.
Moreover, even if Exelon ultimately succeeds in recovering from Constellation any amounts for which Exelon is held liable, Exelon may be temporarily required to bear these losses. Each of these risks could negatively affect Exelon's business, results of operations and financial condition.
ITEM 1B.UNRESOLVED STAFF COMMENTS
All Registrants
None.
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ITEM 2.PROPERTIES
The Utility Registrants
The Utility Registrants' electric substations and a portion of their transmission rights are located on property that they own. A significant portion of their electric transmission and distribution facilities are located above or underneath highways, streets, other public places, or property that others own. The Utility Registrants believe that they have satisfactory rights to use those places or property in the form of permits, grants, easements, licenses, and franchise rights; however, they have not necessarily undertaken to examine the underlying title to the land upon which the rights rest.
Transmission and Distribution
The Utility Registrants’ high voltage electric transmission lines owned and in service at December 31, 2022 were as follows:
VoltageCircuit Miles
(Volts)ComEdPECOBGEPepcoDPLACE
765,00090
500,000(a)
18821610915
345,0002,678
230,000550352770472272
138,0002,2571355561586214
115,00070025
69,000177567662
___________
(a)    In addition, PECO, DPL, and ACE have an ownership interest located in Delaware and New Jersey. See Note 8 — Jointly Owned Electric Utility Plant of the Combined Notes to the Consolidated Financial Statements for additional information.
The Utility Registrants' electric distribution system includes the following number of circuit miles of overhead and underground lines:
Circuit MilesComEdPECOBGEPepcoDPLACE
Overhead35,38712,9659,1554,1306,0077,345
Underground32,6849,59017,9277,2076,5133,007
Gas
The following table presents PECO’s, BGE’s, and DPL’s natural gas pipeline miles at December 31, 2022:
PECOBGEDPL
Transmission(a)
91528
Distribution6,9907,5272,198
Service piping6,4796,7611,486
Total13,47814,4403,692
___________
(a)    DPL has a 10% undivided interest in approximately 8 miles of natural gas transmission mains located in Delaware, which are used by DPL for its natural gas operations and by 90% owner for distribution of natural gas to its electric generating facilities.

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The following table presents PECO’s, BGE’s, and DPL’s natural gas facilities:
RegistrantFacilityLocationStorage Capacity
(mmcf)
Send-out or Peaking Capacity
(mmcf/day)
PECOLNG FacilityWest Conshohocken, PA1,200160
PECOPropane Air PlantChester, PA10525
BGELNG FacilityBaltimore, MD1,056332
BGEPropane Air PlantBaltimore, MD55085
DPLLNG FacilityWilmington, DE25025
PECO, BGE, and DPL also own 30, 30, and 10 natural gas city gate stations and direct pipeline customer delivery points at various locations throughout their gas service territory, respectively.
First Mortgage and Insurance
The principal properties of ComEd, PECO, PEPCO, DPL, and ACE are subject to the lien of their respective Mortgages under which their respective First Mortgage Bonds are issued. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.

The Utility Registrants maintain property insurance against loss or damage to their properties by fire or other perils, subject to certain exceptions. For their insured losses, the Utility Registrants are self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. SuchAny such losses could have a material adverse effect on Exelon’s and Generation’s futurein the consolidated financial conditions and theircondition or results of operations of the Utility Registrants.

Exelon
Security Measures
The Registrants have initiated and cash flows.work to maintain security measures. On a continuing basis, the Registrants evaluate enhanced security measures at certain critical locations, enhanced response and recovery plans, long-term design changes, and redundancy measures. Additionally, the energy industry has strategic relationships with governmental authorities to ensure that emergency plans are in place and critical infrastructure vulnerabilities are addressed in order to maintain the reliability of the country’s energy systems.

ITEM 3.LEGAL PROCEEDINGS
All Registrants
The Registrants are parties to various lawsuits and regulatory proceedings in the ordinary course of their respective businesses. For information regarding property insurance,material lawsuits and proceedings, see ITEM 2. PROPERTIESNote 3Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Such descriptions are incorporated herein by these references.

ITEM 4.MINE SAFETY DISCLOSURES
Not Applicable
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PART II
(Dollars in millions, except per share data, unless otherwise noted)
ITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Exelon
Exelon’s common stock is listed on the Nasdaq (trading symbol: EXC). As of January 31, 2023, there were 994,126,931 shares of common stock outstanding and approximately 80,780 record holders of common stock.
Stock Performance Graph
The performance graph below illustrates a five-year comparison of cumulative total returns based on an initial investment of $100 in Exelon Generation Company, LLC.common stock, compared with the S&P 500 Stock Index and the S&P Utility Index, for the period 2018 through 2022. Cumulative total returns account for the separation of Constellation, as spin-off dividend is assumed to be reinvested as received.
Long-Term Power Purchase ContractsThis performance chart assumes:
In$100 invested on December 31, 2017 in Exelon common stock, the S&P 500 Stock Index, and the S&P Utility Index; and
All dividends are reinvested.
exc-20221231_g1.jpg
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Value of Investment at December 31,
201720182019202020212022
Exelon Corporation$100.00$118.33$123.39$118.59$167.70$181.67
S&P 500$100.00$95.62$125.72$148.85$191.58$156.88
S&P Utilities$100.00$104.11$131.54$132.18$155.53$157.97
ComEd
As of January 31, 2023, there were 127,021,394 outstanding shares of common stock, $12.50 par value, of ComEd, of which 127,002,904 shares were indirectly held by Exelon. As of January 31, 2023, in addition to energy producedExelon, there were 283 record holders of ComEd common stock. There is no established market for shares of the common stock of ComEd.
PECO
As of January 31, 2023, there were 170,478,507 outstanding shares of common stock, without par value, of PECO, all of which were indirectly held by owned generation assets, Generation sources electricityExelon.
BGE
As of January 31, 2023, there were 1,000 outstanding shares of common stock, without par value, of BGE, all of which were indirectly held by Exelon.
PHI
As of January 31, 2023, Exelon indirectly held the entire membership interest in PHI.
Pepco
As of January 31, 2023, there were 100 outstanding shares of common stock, $0.01 par value, of Pepco, all of which were indirectly held by Exelon.
DPL
As of January 31, 2023, there were 1,000 outstanding shares of common stock, $2.25 par value, of DPL, all of which were indirectly held by Exelon.
ACE
As of January 31, 2023, there were 8,546,017 outstanding shares of common stock, $3.00 par value, of ACE, all of which were indirectly held by Exelon.
All Registrants
Dividends
Under applicable Federal law, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE can pay dividends only from plantsretained, undistributed, or current earnings. A significant loss recorded at ComEd, PECO, BGE, PHI, Pepco, DPL, or ACE may limit the dividends that these companies can distribute to Exelon.
ComEd has agreed, in connection with a financing arranged through ComEd Financing III, that ComEd will not declare dividends on any shares of its capital stock in the event that: (1) it doesexercises its right to extend the interest payment periods on the subordinated debt securities issued to ComEd Financing III; (2) it defaults on its guarantee of the payment of distributions on the preferred trust securities of ComEd Financing III; or (3) an event of default occurs under the Indenture under which the subordinated debt securities are issued. No such event has occurred.
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PECO has agreed, in connection with financings arranged through PEC L.P. and PECO Trust IV, that PECO will not owndeclare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debentures which were issued to PEC L.P. or PECO Trust IV; (2) it defaults on its guarantee of the payment of distributions on the Series D Preferred Securities of PEC L.P. or the preferred trust securities of PECO Trust IV; or (3) an event of default occurs under long-term contracts.the Indenture under which the subordinated debentures are issued. No such event has occurred.
BGE is subject to restrictions established by the MDPSC that prohibit BGE from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. No such event has occurred.
Pepco is subject to certain dividend restrictions established by settlements approved by the MDPSC and DCPSC that prohibit Pepco from paying a dividend on its common shares if (a) after the dividend payment, Pepco's equity ratio would be below 48% as calculated pursuant to the MDPSC's and DCPSC's ratemaking precedents, or (b) Pepco’s senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. No such event has occurred.
DPL is subject to certain dividend restrictions established by settlements approved by the DEPSC and MDPSC that prohibit DPL from paying a dividend on its common shares if (a) after the dividend payment, DPL's equity ratio would be below 48% as calculated pursuant to the DEPSC's and MDPSC's ratemaking precedents, or (b) DPL’s corporate issuer or senior unsecured credit rating, or its equivalent, is rated by any of the three major credit rating agencies below the generally accepted definition of investment grade. No such event has occurred.
ACE is subject to certain dividend restrictions established by settlements approved by the NJBPU that prohibit ACE from paying a dividend on its common shares if (a) after the dividend payment, ACE's common equity ratio would be below 48% as calculated pursuant to the NJBPU's ratemaking precedents, or (b) ACE's senior corporate issuer or senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. ACE is also subject to a dividend restriction which requires ACE to notify and obtain the prior approval of the NJBPU before dividends can be paid if its equity as a percent of its total capitalization, excluding securitization debt, falls below 30%. No such events have occurred.
Exelon’s Board of Directors approved an updated dividend policy for 2023. The following tables summarize Generation’s long-2023 quarterly dividend will be $0.36 per share.

term contracts to purchase unit-specific physical power with an original term in excess of one year in duration, by region, in effect asAs of December 31, 2017:2022, Exelon had retained earnings of $4,597 million, ComEd had retained earnings of $2,030 million, PECO had retained earnings of $1,861 million, BGE had retained earnings of $2,075 million, and PHI had undistributed losses of $352 million.
Region 
Number of
Agreements
 
Expiration 
Dates
 Capacity (MW)
Mid-Atlantic 
 14
 2019 - 2032 237
Midwest 4
 2019 - 2026 834
New England 7
 2018 40
ERCOT 5
 2020 - 2031 1,524
Other Power Regions 12
 2018 - 2030 2,650
Total 42
   5,285
  2018 2019 2020 2021 2022 Thereafter Total
Capacity Expiring (MW) 141
 644
 1,020
 815
 298
 2,367
 5,285
Fuel
The following table shows sourcessets forth Exelon’s quarterly cash dividends per share paid during 2022 and 2021:
20222021
(per share)Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Exelon$0.3375 $0.3375 $0.3375 $0.3375 $0.3825 $0.3825 $0.3825 $0.3825 
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The following table sets forth PHI's quarterly distributions and ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's quarterly common dividend payments:
20222021
(in millions)4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
ComEd144 145 145 144 127 127 126 127 
PECO100 99 100 100 85 85 84 85 
BGE74 75 75 76 73 73 72 74 
PHI125 230 293 102 98 191 333 81 
Pepco63 100 258 42 47 98 95 28 
DPL48 39 15 41 41 43 23 40 
ACE17 90 19 19 51 215 14 
First Quarter 2023 Dividend
On February 14, 2023, Exelon's Board of Directors declared a regular quarterly dividend of $0.36 per share on Exelon’s common stock for 2017 and 2016:the first quarter of 2023. The dividend is payable on Friday, March 10, 2023, to shareholders of record of Exelon as of 5 p.m. Eastern time on Monday, February 27, 2023.
 Source of Electric Supply
 2017 2016
Nuclear(a)
182,843
 176,799
Purchases — non-trading portfolio51,595
 59,987
Fossil (primarily natural gas and oil)22,546
 19,830
Renewable(b)
7,848
 6,324
Total supply264,832

262,940
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(a)ITEM 6.Includes the proportionate share of output where Generation has an undivided ownership interest in jointly-owned generating plants and includes the total output of plants that are fully consolidated (e.g., CENG).  Nuclear generation for 2017 and 2016 includes physical volumes of 34,761 GWh and 33,444 GWh, respectively, for CENG.[RESERVED]
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(b)Item 7.Includes wind, hydroelectric and solar generating assets.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The fuel costs(Dollars in millions except per MWhshare data, unless otherwise noted)
Exelon
Executive Overview
Exelon is a utility services holding company engaged in the energy distribution and transmission businesses through ComEd, PECO, BGE, Pepco, DPL, and ACE.
Exelon has six reportable segments consisting of ComEd, PECO, BGE, Pepco, DPL, and ACE. See Note 1 — Significant Accounting Policies and Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for nuclear generation are less than those for fossil-fuel generation. Consequently, nuclear generation is generally the most cost-effective way for Generation to meet its wholesaleadditional information regarding Exelon's principal subsidiaries and retail load servicing requirements.reportable segments.
The cycle of production and utilization of nuclear fuelExelon’s consolidated financial information includes the miningresults of its seven separate operating subsidiary registrants, ComEd, PECO, BGE, PHI, Pepco, DPL, and millingACE, which, along with Exelon, are collectively referred to as the Registrants. The following combined Management’s Discussion and Analysis of uranium ore into uranium concentrates, the conversionFinancial Condition and Results of uranium concentrates to uranium hexafluoride, the enrichmentOperations is separately filed by Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE. However, none of the uranium hexafluoride andRegistrants makes any representation as to information related solely to any of the fabricationother Registrants. For discussion of fuel assemblies. Generation has inventory in various forms and does not anticipate difficulty in obtaining the necessary uranium concentrates or conversion, enrichment or fabrication servicesUtility Registrants' year ended December 31, 2021 compared to meet the nuclear fuel requirements of its nuclear units.
Natural gas is procured through long-term and short-term contracts, as well as spot-market purchases. Fuel oil inventories are managed so that in the winter months sufficient volumes of fuel are available in the event of extreme weather conditions and during the remaining monthsyear ended December 31, 2020, refer to take advantage of favorable market pricing.
Generation uses financial instruments to mitigate price risk associated with certain commodity price exposures, using both over-the-counter and exchange-traded instruments. See ITEM 1A. RISK FACTORS, ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION

AND RESULTS OF OPERATIONS in the 2021 Recast Form 10-K, which was filed with the SEC on June 30, 2022.
COVID-19. The Registrants have taken steps to mitigate the potential risks posed by the global outbreak (pandemic) of COVID-19. The Registrants provide a critical service to our customers which means that it is paramount that we keep our employees who operate our businesses safe and minimize unnecessary risk of exposure to the virus by taking extra precautions for employees who work in the field and in our facilities. The Registrants have implemented work from home policies where appropriate, and imposed travel limitations on employees.
The Registrants continue to implement strong physical and cyber-security measures to ensure that our systems remain functional in order to both serve our operational needs with a remote workforce and keep them running to ensure uninterrupted service to our customers.
There were no changes in internal control over financial reporting as a result of COVID-19 that materially affected, or are reasonably likely to materially affect, any of the Registrants’ internal control over financial reporting. See ITEM 9A. CONTROLS AND PROCEDURES for additional information.
There were no material impacts to Exelon from unfavorable economic conditions due to COVID-19 for the years ended December 31, 2022 and 2021, other than the 2022 impairment discussed below.
The Registrants assessed long-lived assets, goodwill, and investments for recoverability. Exelon and BGE recorded a pre-tax impairment charge of $48 million in 2022 as a result of COVID-19 impacts on office use. See Note 12 — Asset Impairments for additional information related to this impairment assessment. None of the other Registrants recorded material impairment charges in 2022 as a result of COVID-19. Additionally, there were no material impairment charges recorded in 2021 as a result of COVID-19.
The Registrants will continue to monitor developments affecting their workforce, customers, and suppliers and will take additional precautions that they determine to be necessary in order to mitigate the impacts. The Registrants cannot predict the full extent of the impacts of COVID-19, which will depend on, among other things, the rate, and public perceptions of the effectiveness, of vaccinations and rate of resumption of business activity.

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Financial Results of Operations
GAAP Results of Operations. The following table sets forth Exelon's GAAP consolidated Net income attributable to common shareholders from continuing operations and the Utility Registrants' Net income for the year ended December 31, 2022 compared to the same period in 2021. For additional information regarding the financial results for the years ended December 31, 2022 and 2021 see the discussions of Results of Operations by Registrant.
20222021Favorable (Unfavorable) Variance
Exelon2,054 1,616 $438 
ComEd917 742 175 
PECO576 504 72 
BGE380 408 (28)
PHI608 561 47 
Pepco305 296 
DPL169 128 41 
ACE148 146 
Other(a)
(427)(599)172 
__________
(a)Primarily includes eliminating and consolidating adjustments, Exelon’s corporate operations, shared service entities, and other financing and investing activities.
The separation of Constellation Energy Corporation, including Generation and its subsidiaries, meets the criteria for discontinued operations and as such, Generation's results of operations are presented as discontinued operations and have been excluded from Exelon's continuing operations for all periods presented. See Note 1 — Significant Accounting Policies and Note 2 — Discontinued Operations for additional information.
Accounting rules require that certain BSC costs previously allocated to Generation be presented as part of Exelon’s continuing operations as these costs do not qualify as expenses of the discontinued operations. Such costs are included in Other in the table above and were $28 million and $429 million on a pre-tax basis, for the years ended December 31, 2022 and 2021, respectively.
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021. Net income attributable to common shareholders from continuing operationsincreased by $438 million and diluted earnings per average common share from continuing operations increased to $2.08 in 2022 from $1.65 in 2021 primarily due to:
Higher electric distribution earnings and energy efficiency earnings from higher rate base and higher allowed ROE due to an increase in treasury rates at ComEd;
The favorable impacts of rate increases at PECO, BGE, and PHI;
Favorable impacts of decreased storm costs at PECO and BGE; and
Lower BSC costs presented in Exelon’s continuing operations, which were previously allocated to Generation but do not qualify as expenses of the discontinued operation per the accounting rules.
The increases were partially offset by:
An income tax expense recorded in connection with the separation primarily due to the long-term marginal state income tax rate change, the recognition of valuation allowances against the net deferred tax assets positions for certain standalone state filing jurisdictions, and nondeductible transaction costs partially offset by a one-time impact associated with a state tax benefit;
An adjustment at PECO to exclude one-time non-cash impacts associated with the remeasurement of deferred income taxes as a result of the reduction in Pennsylvania corporate income tax rate;
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Higher depreciation expense at PECO, BGE, and PHI;
Higher credit loss expense at PECO, BGE, and PHI;
Higher storm costs at PHI; and
Higher interest expense at PECO, BGE, PHI, and Exelon Corporate.
Adjusted (non-GAAP) Operating Earnings. In addition to Net income, Exelon evaluates its operating performance using the measure of Adjusted (non-GAAP) operating earnings because management believes it represents earnings directly related to the ongoing operations of the business. Adjusted (non-GAAP) operating earnings exclude certain costs, expenses, gains and losses, and other specified items. This information is intended to enhance an investor’s overall understanding of year-to-year operating results and provide an indication of Exelon’s baseline operating performance excluding items that are considered by management to be not directly related to the ongoing operations of the business. In addition, this information is among the primary indicators management uses as a basis for evaluating performance, allocating resources, setting incentive compensation targets, and planning and forecasting of future periods. Adjusted (non-GAAP) operating earnings is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.
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The following table provides a reconciliation between Net income attributable to common shareholders from continuing operations as determined in accordance with GAAP and Adjusted (non-GAAP) operating earnings for the year ended December 31, 2022 compared to 2021: 
For the Years Ended December 31,
20222021
(In millions, except per share data)Earnings per
Diluted Share
Earnings per
Diluted Share
Net Income Attributable to Common Shareholders from Continuing Operations$2,054 $2.08 $1,616 $1.65 
Mark-to-Market Impact of Economic Hedging Activities (net of taxes of $1 and $3, respectively)— — 
Asset Impairments (net of taxes of $10)(a)
38 0.04 — — 
Cost Management Program (net of taxes of $1)(b)
— — 0.01 
Asset Retirement Obligation (net of taxes of $2 and $1, respectively)(4)— — 
COVID-19 Direct Costs (net of taxes of $6)(c)
— — 14 0.01 
Acquisition Related Costs (net of taxes of $5)(d)
— — 15 0.02 
ERP System Implementation Costs (net of taxes of $0 and $4, respectively)(e)
— 13 0.01 
Separation Costs (net of taxes of $10 and $21, respectively)(f)
24 0.02 58 0.06 
Income Tax-Related Adjustments (entire amount represents tax expense)(g)
122 0.12 62 0.06 
Adjusted (non-GAAP) Operating Earnings$2,239 $2.27 $1,791 $1.83 
__________
Note:
Amounts may not sum due to rounding.
Unless otherwise noted, the income tax impact of each reconciling item between GAAP Net Income and Adjusted (non-GAAP) Operating Earnings is based on the marginal statutory federal and state income tax rates for each Registrant, taking into account whether the income or expense item is taxable or deductible, respectively, in whole or in part. The marginal statutory income tax rates for 2022 and 2021 ranged from 24.0% to 29.0%.

(a)Reflects costs related to the impairment of an office building at BGE, which are recorded in Operating and maintenance expense.
(b)Primarily represents reorganization costs related to cost management programs.
(c)Represents direct costs related to COVID-19 consisting primarily of costs to acquire personal protective equipment, costs for cleaning supplies and services, and costs to hire healthcare professionals to monitor the health of employees, which are recorded in Operating and maintenance expense.
(d)Reflects certain BSC costs related to the acquisition of EDF's interest in CENG, which was completed in the third quarter of 2021, that were historically allocated to Generation but are presented as part of continuing operations in Exelon's results as these costs do not qualify as expenses of the discontinued operations per the accounting rules.
(e)Reflects costs related to a multi-year ERP system implementation, which are recorded in Operating and maintenance expense.
(f)Represents costs related to the separation primarily comprised of system-related costs, third-party costs paid to advisors, consultants, lawyers, and other experts assisting in the separation, and employee-related severance costs, which are recorded in Operating and maintenance expense.
(g)In 2021, for PHI, primarily reflects the recognition of a valuation allowance against a deferred tax asset associated with Delaware net operating loss carryforwards due to a change in Delaware tax law. In 2021, for Corporate, reflects the adjustment to deferred income taxes due to changes in forecasted apportionment. In 2022, for PECO, primarily reflects an adjustment to exclude one-time non-cash impacts associated with the remeasurement of deferred income taxes as a result of the reduction in Pennsylvania corporate income tax rate. In 2022, for Corporate, in connection with the separation, Exelon recorded an income tax expense primarily due to the long-term marginal state income tax rate change, the recognition of valuation allowances against the deferred tax assets positions for certain standalone state filing jurisdictions, and nondeductible transaction costs partially offset by a one-time impact associated with a state tax benefit.

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Significant 2022 Transactions and Developments
Separation
On February 21, 2021, Exelon’s Board of Directors approved a plan to separate the Utility Registrants and Generation, creating two publicly traded companies (“the separation”). Exelon completed the separation on February 1, 2022. Constellation was newly formed and incorporated in Pennsylvania on June 15, 2021 for the purpose of separation and holds Generation. The separation represented a strategic shift that would have a major effect on Exelon’s operations and financial results. Accordingly, the separation meets the criteria for discontinued operations. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information on the separation and discontinued operations.
In connection with the separation, Exelon incurred separation costs impacting continuing operations of $34 million and $79 million on a pre-tax basis for the year ended December 31, 2022 and 2021, respectively, which are recorded in Operating and maintenance expense. These costs are excluded from Adjusted (non-GAAP) Operating Earnings. The separation costs are primarily comprised of system-related costs, third-party costs paid to advisors, consultants, lawyers, and other experts assisting in the separation, and employee-related severance costs.
Equity Securities Offering
On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering of 12.995 million shares of its common stock, no par value. The net proceeds were $563 million before expenses paid by Exelon. See Note 19 — Shareholders' Equity of the Combined Notes to Consolidated Financial Statements for additional information.
Utility Distribution Base Rate Case Proceedings
The Utility Registrants file base rate cases with their regulatory commissions seeking increases or decreases to their electric transmission and distribution, and gas distribution rates to recover their costs and earn a fair return on their investments. The outcomes of these regulatory proceedings impact the Utility Registrants’ current and future financial statements.
The following tables show the Utility Registrants’ completed and pending distribution base rate case proceedings in 2022. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on these and other regulatory proceedings.
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Completed Distribution Base Rate Case Proceedings
Registrant/JurisdictionFiling DateServiceRequested Revenue Requirement IncreaseApproved Revenue Requirement IncreaseApproved ROEApproval DateRate Effective Date
ComEd - IllinoisApril 16, 2021Electric$51 $46 7.36 %December 1, 2021January 1, 2022
April 15, 2022Electric199 199 7.85 %November 17, 2022January 1, 2023
PECO - PennsylvaniaMarch 30, 2021Electric246 132 N/ANovember 18, 2021January 1, 2022
March 31, 2022Natural Gas82 55 October 27, 2022January 1, 2023
BGE - MarylandMay 15, 2020 (amended September 11, 2020)Electric203 140 9.50 %December 16, 2020January 1, 2021
Natural Gas108 74 9.65 %
Pepco - District of ColumbiaMay 30, 2019 (amended June 1, 2020)Electric136 109 9.275 %June 8, 2021July 1, 2021
Pepco - MarylandOctober 26, 2020 (amended March 31, 2021)Electric104 52 9.55 %June 28, 2021June 28, 2021
DPL - MarylandSeptember 1, 2021 (amended December 23, 2021)Electric27 13 9.60 %March 2, 2022March 2, 2022
May 19, 2022Electric38 29 9.60 %December 14, 2022January 1, 2023
DPL - DelawareJanuary 14, 2022 (amended August 15, 2022)Natural Gas13 9.60 %October 12, 2022August 14, 2022
ACE - New JerseyDecember 9, 2020 (amended February 26, 2021)Electric67 41 9.60 %July 14, 2021January 1, 2022

Pending Distribution Base Rate Case Proceedings
Registrant/JurisdictionFiling DateServiceRequested Revenue Requirement IncreaseRequested ROEExpected Approval Timing
ComEd - IllinoisJanuary 17, 2023Electric$1,472 10.50% to 10.65%Fourth quarter of 2023
DPL - DelawareDecember 15, 2022Electric60 10.50 %Second quarter of 2024
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Transmission Formula Rates
The following total increases/(decreases) were included in the Utility Registrants' 2022 annual electric transmission formula rate updates. All rates are effective June 1, 2022 to May 31, 2023, subject to review by interested parties pursuant to review protocols of each Utility Registrants' tariff. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
RegistrantInitial Revenue Requirement IncreaseAnnual Reconciliation (Decrease) IncreaseTotal Revenue Requirement IncreaseAllowed Return on Rate BaseAllowed ROE
ComEd$24 $(24)$— 8.11 %11.50 %
PECO23 16 39 7.30 %10.35 %
BGE25 (4)16 7.30 %10.50 %
Pepco16 15 31 7.60 %10.50 %
DPL11 7.09 %10.50 %
ACE21 13 34 7.18 %10.50 %
Pennsylvania Corporate Income Tax Rate Change
On July 8, 2022, Pennsylvania enacted House Bill 1342, which will permanently reduce the corporate income tax rate from 9.99% to 4.99%. The tax rate will be reduced to 8.99% for the 2023 tax year. Starting with the 2024 tax year, the rate is reduced by 0.50% annually until it reaches 4.99% in 2031. As a result of the rate change, in the third quarter of 2022, Exelon and PECO recorded a one-time decrease to deferred income taxes of $390 million with a corresponding decrease to the deferred income taxes regulatory asset of $428 million for the amounts that are expected to be settled through future customer rates and an increase to income tax expense of $38 million (net of federal taxes), which was excluded from Exelon's Adjusted (non-GAAP) Operating Earnings. The tax rate decrease is not expected to have a material ongoing impact to Exelon’s and PECO’s financial statements. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Inflation Reduction Act
On August 16, 2022, the Inflation Reduction Act (IRA) was signed into law. The bill extends tax benefits for renewable technologies like solar and wind, and it creates new tax benefits for alternative clean energy sources like nuclear and hydrogen and it focuses on energy efficiency, electrification, and equity. However, the bill also implements a new 15.0% corporate minimum tax based on modified GAAP net income. Exelon estimates the IRA could result in an increase in cash taxes for Exelon of approximately $200 million per year starting in 2023. Exelon is continuing to assess the impacts of the IRA on the financial statements and will update estimates based on guidance to be issued by the U.S. Treasury in the future.
Asset Impairment
In the third quarter of 2022, a review of the impacts of COVID-19 on office use resulted in plans to cease the renovation and dispose of an office building at BGE before the asset was placed into service. BGE determined that the carrying value was not recoverable and that its fair value was less than carrying value. As a result, Exelon and BGE recorded a pre-tax impairment charge of $48 million in 2022, which was excluded from Exelon's Adjusted (non-GAAP) Operating Earnings. See Note 11 — Asset Impairments of the Combined Notes to Consolidated Financial Statements for additional information.
ComEd's FERC Audit
The Registrants are subject to periodic audits and investigations by FERC. FERC’s Division of Audits and Accounting initiated a nonpublic audit of ComEd in May 2021 evaluating ComEd’s compliance with (1) approved terms, rates and conditions of its transmission formula rate mechanism; (2) accounting requirements of the Uniform System of Accounts; (3) reporting requirements of the FERC Form 1; and (4) the requirements for record retention. The audit covered the period from January 1, 2017 through August 31, 2022. On January 17, 2023, ComEd was provided with information on a series of potential findings, including concerning ComEd's
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methodology regarding the allocation of certain overhead costs to capital under FERC regulations. The final outcome and resolution of the findings or of the audit itself cannot be predicted and the results, while not reasonably estimable at this time, could be material to the Exelon and ComEd financial statements. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Other Key Business Drivers and Management Strategies

Utility Rates and Rate Proceedings
The Utility Registrants file rate cases with their regulatory commissions seeking increases or decreases to their electric transmission and distribution, and gas distribution rates to recover their costs and earn a fair return on their investments. The outcomes of these regulatory proceedings impact the Utility Registrants’ current and future results of operations, cash flows, and financial positions. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on these regulatory proceedings.
Legislative and Regulatory Developments
City of Chicago Franchise Agreement
The current ComEd Franchise Agreement with the City of Chicago (the City) has been in force since 1992. The Franchise Agreement grants rights to use the public right of way to install, maintain, and operate the wires, poles, and other infrastructure required to deliver electricity to residents and businesses across the City. The Franchise Agreement became terminable on one year notice as of December 31, 2020. It now continues in effect indefinitely unless and until either party issues a notice of termination, effective one year later, or it is replaced by mutual agreement with a new franchise agreement between ComEd and the City. If either party terminates and no new agreement is reached between the parties, the parties could continue with ComEd providing electric services within the City with no franchise agreement in place. The City also has an option to terminate and purchase the ComEd system (“municipalize”), which also requires one year notice. Neither party has issued a notice of termination at this time, the City has not exercised its municipalization option, and no new agreement has become effective. Accordingly, the 1992 Franchise Agreement remains in effect at this time. In April 2021, the City invited interested parties to respond to a Request for Information (RFI) regarding the franchise for electricity delivery. Final responses to the RFI were due on July 30, 2021, however, on July 29, 2021, the City chose to extend the final submission deadline to September 30, 2021. ComEd submitted its response to the RFI by the due date. However, the City did not proceed to issue an RFP. Since that time, ComEd and the City continued to negotiate and have arrived at a proposed Chicago Franchise Agreement (CFA) and an Energy and Equity Agreement (EEA). These agreements together are intended to grant ComEd the right to continue providing electric utility services using public ways within the City of Chicago, and to create a new non-profit entity to advance energy and energy-related equity projects. On February 1, 2023, the proposed CFA and EEA were introduced to the City Council. The proposed CFA and EEA remain subject to approval by the City Council and the Exelon Board.
While Exelon and ComEd cannot predict the ultimate outcome of these processes, fundamental changes in the agreements or other adverse actions affecting ComEd’s business in the City would require changes in their business planning models and operations and could have a material adverse impact on Exelon’s and ComEd’s consolidated financial statements. If the City were to disconnect from the ComEd system, ComEd would seek full compensation for the business and its associated property taken by the City, as well as for all damages resulting to ComEd and its system. ComEd would also seek appropriate compensation for stranded costs with FERC.
Infrastructure Investment and Jobs Act
On November 15, 2021, President Biden signed the $1.2 trillion Infrastructure Investment and Jobs Act (IIJA) into law. IIJA provides for approximately $550 billion in new federal spending. Categories of funding include funding for a variety of infrastructure needs, including but not limited to: (1) power and grid reliability and resilience, (2) resilience for cybersecurity to address critical infrastructure needs, and (3) electric vehicle charging infrastructure for alternative fuel corridors. Federal agencies are developing guidelines to implement spending programs under IIJA. The time needed to develop these guidelines will vary with some limited program applications opened as early as the first quarter of 2022. The Registrants are continuing to analyze the legislation and considering possible opportunities to apply for funding, either directly or in potential collaborations with state and/or local
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agencies and key stakeholders. The Registrants cannot predict the ultimate timing and success of securing funding from programs under IIJA.
ComEd and BGE applied for the Middle Mile Grant (MMG), which establishes and funds construction, improvement, or acquisition of middle mile broadband infrastructure which creates high-speed internet services. The MMG addresses inequitable broadband access by expansion and extension of the middle mile infrastructure in underserved communities. ComEd and BGE cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
In December 2022, Exelon and the Utility Registrants submitted 14 concept papers in response to the Department of Energy's Grid Resilience and Innovation Partnership (GRIP) program. These concept papers are focused on delivering grid resilience and grid benefits to customers and communities across the Exelon footprint. Eleven of the fourteen opportunities received letters of encouragement to submit applications due in the first half of 2023. Exelon cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
Exelon and the Utility Registrants are supporting three different Regional Clean Hydrogen Hub opportunities, covering all five states that Exelon operates in plus Washington D.C., that have submitted concept papers to the Department of Energy. All three opportunities have received letters of encouragement from Department of Energy to submit applications due in April 2023. The program will create networks of hydrogen producers, consumers, and local connective infrastructure to accelerate the use of hydrogen as a clean energy carrier that can deliver or store energy. Exelon cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
Critical Accounting Policies and Estimates
The preparation of financial statements in conformity with GAAP requires that management apply accounting policies and make estimates and assumptions that affect results of operations and the amounts of assets and liabilities reported in the financial statements. Management believes that the accounting policies described below require significant judgment in their application or incorporate estimates and assumptions that are inherently uncertain and that may change in subsequent periods. Additional information on the application of these accounting policies can be found in the Combined Notes to Consolidated Financial Statements.
Goodwill (Exelon, ComEd, and PHI)
As of December 31, 2022, Exelon’s $6.6 billion carrying amount of goodwill consists of $2.6 billion at ComEd and $4 billion at PHI. These entities are required to perform an assessment for possible impairment of their goodwill at least annually or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting units below their carrying amount. A reporting unit is an operating segment or one level below an operating segment (known as a component) and is the level at which goodwill is assessed for impairment. ComEd has a single operating segment and reporting unit. PHI’s operating segments and reporting units are Pepco, DPL, and ACE. See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information. Exelon's and ComEd’s goodwill has been assigned entirely to the ComEd reporting unit. Exelon's and PHI’s goodwill has been assigned to the Pepco, DPL, and ACE reporting units in the amounts of $2.1 billion, $1.4 billion, and $0.5 billion, respectively. See Note 12 — Intangible Assets of the Combined Notes to Consolidated Financial Statements for additional information.
Entities assessing goodwill for impairment have the option of first performing a qualitative assessment to determine whether a quantitative assessment is necessary. As part of the qualitative assessments, Exelon, ComEd, and PHI evaluate, among other things, management's best estimate of projected operating and capital cash flows for their businesses, outcomes of recent regulatory proceedings, changes in certain market conditions, including the discount rate and regulated utility peer EBITDA multiples, and the passing margin from their last quantitative assessments performed.
Application of the goodwill impairment assessment requires management judgment, including the identification of reporting units and determining the fair value of the reporting unit, which management estimates using a weighted combination of a discounted cash flow analysis and a market multiples analysis. Significant assumptions used in these fair value analyses include discount and growth rates, utility sector market
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performance and transactions, and projected operating and capital cash flows for ComEd’s, Pepco's, DPL's, and ACE's businesses and the fair value of debt.
While the 2022 annual assessments indicated no impairments, certain assumptions used in the assessment are highly sensitive to changes. Adverse regulatory actions or changes in significant assumptions could potentially result in future impairments of Exelon’s, ComEd's, or PHI’s goodwill, which could be material.
See Note 1 — Significant Accounting Policies and Note 12 — Intangible Assets of the Combined Notes to Consolidated Financial Statements for additional information.
Unamortized Energy Contract Liabilities (Exelon and PHI)
Unamortized energy contract liabilities represent the remaining unamortized balances of non-derivative electricity contracts that Exelon acquired as part of the PHI merger. The initial amount recorded represents the difference between the fair value of the contracts at the time of acquisition and the contract value based on the terms of each contract. Offsetting regulatory assets were also recorded for those energy contract costs that are probable of recovery through customer rates. The unamortized energy contract liabilities and the corresponding regulatory assets, respectively, are amortized over the life of the contract in relation to the expected realization of the underlying cash flows. Amortization of the unamortized energy contract liabilities are recorded through purchased power and fuel expense. See Note 3 — Regulatory Matters and Note 12 — Intangible Assets of the Combined Notes to Consolidated Financial Statements for additional information.
Depreciable Lives of Property, Plant, and Equipment (All Registrants)
The Registrants have significant investments in electric and natural gas transmission and distribution assets. These assets are generally depreciated on a straight-line basis, using the group, or composite methods of depreciation. The group approach is typically for groups of similar assets that have approximately the same useful lives and the composite approach is used for heterogeneous assets that have different lives. Under both methods, a reporting entity depreciates the assets over the average life of the assets in the group. The estimation of asset useful lives requires management judgment, supported by formal depreciation studies of historical asset retirement experience. Depreciation studies are conducted periodically and as required by a rate regulator or regulatory action, or changes in retirement patterns indicate an update is necessary.
Depreciation studies generally serve as the basis for amounts allowed in customer rates for recovery of depreciation costs. Generally, the Registrants adjust their depreciation rates for financial reporting purposes concurrent with adjustments to depreciation rates reflected in customer rates, unless the depreciation rates reflected in customer rates do not align with management’s judgment as to an appropriate estimated useful life or have not been updated on a timely basis. Depreciation expense and customer rates for ComEd, BGE, Pepco, DPL, and ACE include an estimate of the future costs of dismantling and removing plant from service upon retirement. See Note 3 — Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for information regarding regulatory liabilities and assets recorded by ComEd, BGE, Pepco, DPL, and ACE related to removal costs.
PECO’s removal costs are capitalized to accumulated depreciation when incurred and recorded to depreciation expense over the life of the new asset constructed consistent with PECO’s regulatory recovery method. Estimates for such removal costs are also evaluated in the periodic depreciation studies.
Changes in estimated useful lives of electric and natural gas transmission and distribution assets could have a significant impact on the Registrants’ future results of operations. See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for information regarding depreciation and estimated service lives of the property, plant, and equipment of the Registrants.
Retirement Benefits (All Registrants)
Exelon sponsors defined benefit pension plans and OPEB plans for substantially all current employees. The measurement of the plan obligations and costs of providing benefits involves various factors, including the development of valuation assumptions and inputs and accounting policy elections. When developing the required assumptions, Exelon considers historical information as well as future expectations. The measurement of benefit obligations and costs is affected by several assumptions including the discount rate, the long-term expected rate of return on plan assets, the anticipated rate of increase of health care costs, Exelon's contributions, the rate of
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compensation increases, and the long-term expected investment rate credited to employees of certain plans, among others. The assumptions are updated annually and upon any interim remeasurement of the plan obligations.
Pension and OPEB plan assets include equity securities, including U.S. and international securities, and fixed income securities, as well as certain alternative investment classes such as real estate, private equity, and hedge funds.
Expected Rate of Return on Plan Assets. In determining the EROA, Exelon considers historical economic indicators (including inflation and GDP growth) that impact asset returns, as well as expectation regarding future long-term capital market performance, weighted by Exelon’s target asset class allocations. Exelon calculates the amount of expected return on pension and OPEB plan assets by multiplying the EROA by the MRV of plan assets at the beginning of the year, taking into consideration anticipated contributions and benefit payments to be made during the year. In determining MRV, the authoritative guidance for pensions and postretirement benefits allows the use of either fair value or a calculated value that recognizes changes in fair value in a systematic and rational manner over not more than five years. For the majority of pension plan assets, Exelon uses a calculated value that adjusts for 20% of the difference between fair value and expected MRV of plan assets. Use of this calculated value approach enables less volatile expected asset returns to be recognized as a component of pension cost from year to year. For OPEB plan assets and certain pension plan assets, Exelon uses fair value to calculate the MRV.
Discount Rate. The discount rates are determined by developing a spot rate curve based on the yield to maturity of a universe of high-quality non-callable (or callable with make whole provisions) bonds with similar maturities to the related pension and OPEB obligations. The spot rates are used to discount the estimated future benefit distribution amounts under the pension and OPEB plans. The discount rate is the single level rate that produces the same result as the spot rate curve. Exelon utilizes an analytical tool developed by its actuaries to determine the discount rates.
Mortality. The mortality assumption is composed of a base table that represents the current expectation of life expectancy of the population adjusted by an improvement scale that attempts to anticipate future improvements in life expectancy. Exelon’s mortality assumption utilizes the SOA 2019 base table (Pri-2012) and MP-2021 improvement scale adjusted to use Proxy SSA ultimate improvement rates.
Sensitivity to Changes in Key Assumptions. The following tables illustrate the effects of changing certain of the actuarial assumptions discussed above, while holding all other assumptions constant:
Actual Assumption
Actuarial AssumptionPensionOPEBChange in
Assumption
PensionOPEBTotal
Change in 2022 cost:
Discount rate(a)
3.24%3.20%0.5%$(16)$(2)$(18)
3.24%3.20%(0.5)%31 38 
EROA7.00%6.44%0.5%(54)(7)(61)
7.00%6.44%(0.5)%54 61 
Change in benefit obligation at December 31, 2022:
Discount rate(a)
5.53%5.51%0.5%(508)(83)(591)
5.53%5.51%(0.5)%655 104 759 
__________
(a)In general, the discount rate will have a larger impact on the pension and OPEB cost and obligation as the rate moves closer to 0%. Therefore, the discount rate sensitivities above cannot necessarily be extrapolated for larger increases or decreases in the discount rate. Additionally, Exelon utilizes a liability-driven investment strategy for its pension asset portfolio. The sensitivities shown above do not reflect the offsetting impact that changes in discount rates may have on pension asset returns.
See Note 1 — Significant Accounting Policies and Note 14 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information regarding the accounting for the defined benefit pension plans and OPEB plans.
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Regulatory Accounting (All Registrants)
For their regulated electric and gas operations, the Registrants reflect the effects of cost-based rate regulation in their financial statements, which is required for entities with regulated operations that meet the following criteria: (1) rates are established or approved by a third-party regulator; (2) rates are designed to recover the entities’ cost of providing services or products; and (3) a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. Regulatory assets represent incurred costs that have been deferred because of their probable future recovery from customers through regulated rates. Regulatory liabilities represent (1) revenue or gains that have been deferred because it is probable such amounts will be returned to customers through future regulated rates; or (2) billings in advance of expenditures for approved regulatory programs. If it is concluded in a future period that a separable portion of operations no longer meets the criteria discussed above, the Registrants would be required to eliminate any associated regulatory assets and liabilities and the impact, which could be material, would be recognized in the Consolidated Statements of Operations and Comprehensive Income.
The following table illustrates gains (losses) to be included in net income that could result from the elimination of regulatory assets and liabilities and charges against OCI related to deferred costs associated with Exelon's pension and OPEB plans that are recorded as regulatory assets in Exelon's Consolidated Balance Sheets (before taxes) as of December 31, 2022:
(In millions)ExelonComEdPECOBGEPHIPepcoDPLACE
Gain (loss)$2,461 $3,697 $(387)$159 $(978)$(211)$142 $(442)
Charge against OCI(a)
(2,590)— — — — — — — 
___________
(a)Exelon's charge against OCI (before taxes) consists of up to $1.9 billion, $347 million, $492 million, $279 million, $113 million, and $59 million related to ComEd's, BGE's, PHI's, Pepco's, DPL's, and ACE's respective portions of the deferred costs associated with Exelon's pension and OPEB plans. Exelon also has a net regulatory liability of $115 million (before taxes) related to PECO’s portion of the deferred costs associated with Exelon’s OPEB plans that would result in an increase in OCI if reversed.
See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding regulatory matters, including the regulatory assets and liabilities of the Registrants.
For each regulatory jurisdiction in which they conduct business, the Registrants assess whether the regulatory assets and liabilities continue to meet the criteria for probable future recovery or refund at each balance sheet date and when regulatory events occur. This assessment includes consideration of recent rate orders, historical regulatory treatment for similar costs in each Registrant's jurisdictions, and factors such as changes in applicable regulatory and political environments. If the assessments and estimates made by the Registrants for regulatory assets and regulatory liabilities are ultimately different than actual regulatory outcomes, the impact in their consolidated financial statements could be material.
Refer to the revenue recognition discussion below for additional information on the annual revenue reconciliations associated with ICC-approved electric distribution and energy efficiency formula rates for ComEd, and FERC transmission formula rate tariffs for the Utility Registrants.
Derivative Financial Instruments (All Registrants)
The Registrants use derivative instruments to manage commodity price risk and interest rate risk related to ongoing business operations. See Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information.
Determining whether a contract qualifies as a derivative requires that management exercise significant judgment, including assessing market liquidity as well as determining whether a contract has one or more underlying and one or more notional quantities.
All derivatives are recognized on the balance sheet at their fair value, except for certain derivatives that qualify for, and are elected under, NPNS. For derivatives that qualify and are designated as cash flow hedges, changes in fair value each period are initially recorded in AOCI and recognized in earnings when the hedged transaction
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affects earnings. For derivatives intended to serve as economic hedges, which are not designated for hedge accounting, changes in fair value each period are recognized in earnings on the Consolidated Statement of Operations and Comprehensive Income or are recorded as a regulatory asset or liability when there is an ability to recover or return the associated costs or benefits in accordance with regulatory requirements.
NPNS. Contracts that are designated as NPNS are not required to be recorded at fair value, but rather on an accrual basis of accounting. Determining whether a contract qualifies for NPNS requires judgment on whether the contract will physically deliver and requires that management ensure compliance with all the associated qualification and documentation requirements. For all NPNS derivative instruments, accounts payable is recorded when derivatives settle and expense is recognized in earnings as the underlying physical commodity is consumed. Contracts that qualify for NPNS are those for which physical delivery is probable, quantities are expected to be used or sold in the normal course of business over a reasonable period, and the contract is not financially settled on a net basis. The contracts that ComEd has entered into with suppliers as part of ComEd’s energy procurement process, PECO’s full requirement contracts under the PAPUC-approved DSP program, most of PECO’s natural gas supply agreements, all of BGE’s full requirement contracts and natural gas supply agreements that are derivatives, and certain Pepco, DPL, and ACE full requirement contracts qualify for and are accounted for under NPNS.
Commodity Contracts. The Registrants make estimates and assumptions concerning future commodity prices, interest rates, and the timing of future transactions and their probable cash flows in deciding whether to enter derivative transactions, and in determining the initial accounting treatment for derivative transactions. The Registrants categorize these derivatives under a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value.
Derivative contracts can be traded in both exchange-based and non-exchange-based markets. Exchange-based derivatives that are valued using unadjusted quoted prices in active markets are generally categorized in Level 1 in the fair value hierarchy. Certain derivative pricing is verified using indicative price quotations available through brokers or over-the-counter, online exchanges. For derivatives that trade in liquid markets, the model inputs are generally observable. Such instruments are categorized in Level 2. For derivatives that trade in less liquid markets with limited pricing information, the model inputs generally would include both observable and unobservable inputs and are categorized in Level 3.
The Registrants consider nonperformance risk, including credit risk in the valuation of derivative contracts, and both historical and current market data in the assessment of nonperformance risk. The impacts of nonperformance and credit risk to date have generally not been material to the Registrants’ financial statements.
Interest Rate Derivative Instruments. Exelon Corporate utilizes interest rate swaps to manage interest rate risk on existing and planned future debt issuances as well as potential fluctuations in Electric operating revenues at the corporate level in consolidation, which are directly correlated to yields on U.S. Treasury bonds under ComEd's distribution formula rate. The fair value of the swaps is calculated by discounting the future net cash flows to the present value based on the terms and conditions of the agreements and the forward interest rate curves. As these inputs are based on observable data and valuations of similar instruments, the interest rate derivatives are primarily categorized in Level 2 in the fair value hierarchy.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK and Note 17 — Fair Value of Financial Assets and Liabilities and Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information regarding the Registrants’ derivative financial instruments.
Power MarketingIncome Taxes (All Registrants)
Generation’s integrated business operations include physical delivery and marketing of power.  Generation largely obtains physical power supply from its generatingSignificant management judgment is required in determining the Registrants’ provisions for income taxes, primarily due to the uncertainty related to tax positions taken, as well as deferred tax assets and power purchase agreements in multiple geographic regions. Power purchase agreements,liabilities and valuation allowances. The Registrants account for uncertain income tax positions using a benefit recognition model with a two-step approach including tolling arrangements, are commitments related to power generation of specific generation plants and/or dispatch similar to an owned asset dependinga more-likely-than-not recognition threshold and a measurement approach based on the typelargest amount of underlying asset. tax benefit that is greater than 50% likely of being realized upon ultimate settlement. Management evaluates each position based solely on the technical merits and facts and circumstances of the position, assuming the position will be examined by a taxing authority having full knowledge of all relevant information. Significant judgment is required to determine whether the recognition threshold has
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been met and, if so, the appropriate amount of tax benefits to be recorded in the Registrants’ consolidated financial statements.
The commodity risks associatedRegistrants evaluate quarterly the probability of realizing deferred tax assets by reviewing a forecast of future taxable income and their intent and ability to implement tax planning strategies, if necessary, to realize deferred tax assets. The Registrants also assess negative evidence, such as the expiration of historical operating loss or tax credit carryforwards, that could indicate the Registrant's inability to realize its deferred tax assets. Based on the combined assessment, the Registrants record valuation allowances for deferred tax assets when it is more-likely-than-not such benefit will not be realized in future periods.
Actual income taxes could vary from estimated amounts due to the future impacts of various items, including future changes in income tax laws, the Registrants’ forecasted financial condition and results of operations, failure to successfully implement tax planning strategies, as well as results of audits and examinations of filed tax returns by taxing authorities. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Accounting for Loss Contingencies (All Registrants)
In the preparation of their financial statements, the Registrants make judgments regarding the future outcome of contingent events and record liabilities for loss contingencies that are probable and can be reasonably estimated based upon available information. The amount recorded may differ from the actual expense incurred when the uncertainty is resolved. Such difference could have a significant impact in the Registrants' consolidated financial statements.
Environmental Costs. Environmental investigation and remediation liabilities are based upon estimates with respect to the output from generating assetsnumber of sites for which the Registrants will be responsible, the scope and PPAs are managed using various commodity transactions including salescost of work to customers. The main objective is to obtain low-cost energy supply to meet physical delivery obligations to both wholesale and retail customers. Generation sells electricity, natural gas andbe performed at each site, the portion of costs that will be shared with other energy related products and solutions to various customers, including distribution utilities, municipalities, cooperatives, and commercial, industrial, governmental and residential customers in competitive markets. Where necessary, Generation may also purchase transmission service to ensure that it has reliable transmission capacity to physically move its power supplies to meet customer delivery needs.
Price and Supply Risk Management
Generation also managesparties, the price and supply risks for energy and fuel associated with generation assetstiming of the remediation work, regulations, and the risksrequirements of power marketing activities. Generation implementslocal governmental authorities. Annual studies and/or reviews are conducted at ComEd, PECO, BGE, and DPL to determine future remediation requirements for MGP sites and estimates are adjusted accordingly. In addition, periodic reviews are performed at each of the Registrants to assess the adequacy of other environmental reserves. These matters, if resolved in a three-year ratable sales planmanner different from the estimate, could have a significant impact in the Registrants’ consolidated financial statements. See Note 18 — Commitments and Contingencies of the Combined Notes to align its hedging strategy with its financial objectives. Generation may also enter into transactionsConsolidated Financial Statements for additional information.
Other, Including Personal Injury Claims. The Registrants are self-insured for general liability, automotive liability, workers’ compensation, and personal injury claims to the extent that losses are outside of this ratable sales plan. Generation is exposed to commodity price risk in 2018 and beyond for portions of its electricity portfolio that are unhedged. As of December 31, 2017, the percentage of expected generation hedged is 85%-88%, 55%-58% and 26%-29% for 2018, 2019, and 2020, respectively. The percentage of expected generation hedged iswithin policy deductibles or exceed the amount of equivalentinsurance maintained. The Registrants have reserves for both open claims asserted, and an estimate of claims incurred but not reported (IBNR). The IBNR reserve is estimated based on actuarial assumptions and analysis and is updated annually. Future events, such as the number of new claims to be filed each year, the average cost of disposing of claims, as well as the numerous uncertainties surrounding litigation and possible state and national legislative measures could cause the actual costs to be higher or lower than estimated. Accordingly, these claims, if resolved in a manner different from the estimate, could have a material impact to the Registrants’ consolidated financial statements.
Revenues (All Registrants)
Sources of Revenue and Determination of Accounting Treatment. The Registrants earn revenues from the sale and delivery of power and natural gas in regulated markets. The accounting treatment for revenue recognition is based on the nature of the underlying transaction and applicable authoritative guidance. The Registrants primarily apply the Revenue from Contracts with Customers, and Alternative Revenue Program accounting guidance to recognize revenues as discussed in more detail below.
Revenue from Contracts with Customers. The Registrants recognize revenues in the period in which the performance obligations within contracts with customers are satisfied, which generally occurs when power and natural gas are physically delivered to the customer. Transactions of the Registrants within the scope of Revenue from Contracts with Customers generally include sales dividedto utility customers under regulated service tariffs.
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The determination of the Registrants' power and natural gas sales to individual customers is based on systematic readings of customer meters, generally monthly. At the end of each month, amounts of energy delivered to customers since the date of the last meter reading are estimated, and corresponding unbilled revenue is recorded. The measurement of unbilled revenue is affected by the expected generation. Expectedfollowing factors: daily customer usage measured by generation is theor gas throughput volume, customer usage by class, losses of energy during delivery to customers and applicable customer rates. Increases or decreases in volumes delivered to the Registrant’s customers and favorable or unfavorable rate mix due to changes in usage patterns in customer classes in the period could be significant to the calculation of unbilled revenue. In addition, revenues may fluctuate monthly as a result of customers electing to use an alternative supplier, since unbilled commodity revenues are not recorded for these customers. Changes in the timing of meter reading schedules and the number and type of customers scheduled for each meter reading date also impact the measurement of unbilled revenue; however, total operating revenues would remain materially unchanged. See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for additional information.
Alternative Revenue Program Accounting. Certain of the Registrants’ ratemaking mechanisms qualify as ARPs if they (i) are established by a regulatory order and allow for automatic adjustment to future rates, (ii) provide for additional revenues (above those amounts currently reflected in the price of utility service) that best represents our commodity positionare objectively determinable and probable of recovery, and (iii) allow for the collection of those additional revenues within 24 months following the end of the period in energy markets from owned or contracted generating facilities based upon a simulated dispatch modelwhich they were recognized. For mechanisms that makes assumptions regarding future market conditions, which are calibrated to market quotes for power, fuel, load following products and options. Equivalent sales represent all hedging products,meet these criteria, which include economic hedgesthe Registrants’ formula rate mechanisms and certain non-derivative contracts, including sales to revenue decoupling mechanisms, the Registrants adjust revenue and record an offsetting regulatory asset or liability once the condition or event allowing additional billing or refund has occurred. The ARP revenues presented in the Registrants’ Consolidated Statements of Operations and Comprehensive Income include both: (i) the recognition of “originating” ARP revenues (when the regulator-specified condition or event allowing for additional billing or refund has occurred) and (ii) an equal and offsetting reversal of the “originating” ARP revenues as those amounts are reflected in the price of utility service and recognized as Revenue from Contracts with Customers.
ComEd records ARP revenue for its best estimate of the electric distribution, energy efficiency, distributed generation rebates, and transmission revenue impacts resulting from future changes in rates that ComEd believes are probable of approval by the ICC and FERC in accordance with its formula rate mechanisms. BGE, Pepco, DPL, and ACE record ARP revenue for their best estimate of the electric and natural gas distribution revenue impacts resulting from future changes in rates that they believe are probable of approval by the MDPSC, DCPSC, and/or NJBPU in accordance with their revenue decoupling mechanisms. PECO, BGE, Pepco, DPL, and ACE to serverecord ARP revenue for their retail load. A portionbest estimate of Generation’s hedging strategy may be implemented through the usetransmission revenue impacts resulting from future changes in rates that they believe are probable of fuel productsapproval by FERC in accordance with their formula rate mechanisms. Estimates of the current year revenue requirement are based on assumed correlationsactual and/or forecasted costs and investments in rate base for the period and the rates of return on common equity and associated regulatory capital structure allowed under the applicable tariff. The estimated reconciliation can be affected by, among other things, variances in costs incurred, investments made, allowed ROE, and actions by regulators or courts.
See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Allowance for Credit Losses on Customer Accounts Receivable (All Registrants)
The Registrants estimate the allowance for credit losses on customer receivables by applying loss rates developed specifically for each company based on historical loss experience, current conditions, and forward-looking risk factors to the outstanding receivable balance by customer risk segment. Risk segments represent a group of customers with similar forward-looking credit quality indicators and risk factors that are comprised based on various attributes, including delinquency of their balances and payment history and represent expected, future customer behavior. Loss rates applied to the accounts receivable balances are based on a historical average of charge-offs as a percentage of accounts receivable in each risk segment. The Registrants' customer accounts are generally considered delinquent if the amount billed is not received by the time the next bill is issued, which normally occurs on a monthly basis. The Registrants' customer accounts are written off consistent with approved regulatory requirements. The Registrants' allowances for credit losses will continue to be affected by changes in volume, prices, and economic conditions as well as changes in ICC, PAPUC, MDPSC, DCPSC, DEPSC, and NJBPU regulations.

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ComEd
Results of Operations by Registrant
Results of Operations—ComEd
20222021(Unfavorable) Favorable Variance
Operating revenues$5,761 $6,406 $(645)
Operating expenses
Purchased power1,109 2,271 1,162 
Operating and maintenance1,412 1,355 (57)
Depreciation and amortization1,323 1,205 (118)
Taxes other than income taxes374 320 (54)
Total operating expenses4,218 5,151 933 
Gain on sales of assets(2)— (2)
Operating income1,541 1,255 286 
Other income and (deductions)
Interest expense, net(414)(389)(25)
Other, net54 48 
Total other income and (deductions)(360)(341)(19)
Income before income taxes1,181 914 267 
Income taxes264 172 (92)
Net income$917 $742 $175 
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $175 million primarily due to increases in electric distribution and energy efficiency formula rate earnings (reflecting higher allowed ROE due to an increase in U.S. Treasury rates and the impacts of higher rate base).
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
Distribution$310 
Transmission65 
Energy efficiency65 
Other12
452 
Regulatory required programs(1,097)
Total decrease
$(645)

Revenue Decoupling. The demand for electricity is affected by weather and customer usage. Operating revenues are not impacted by abnormal weather, usage per customer, or number of customers as a result of revenue decoupling mechanisms implemented pursuant to FEJA.
Distribution Revenue. EIMA and FEJA provide for a performance-based formula rate, which requires an annual reconciliation of the revenue requirement in effect to the actual costs that the ICC determines are prudently and reasonably incurred in a given year. Electric distribution revenue varies from year to year based upon fluctuations in the underlying costs (e.g., severe weather and storm restoration), investments being recovered, and allowed ROE. Electric distribution revenue increased during the year ended December 31, 2022, compared to the same period in 2021, due to higher allowed ROE due to an increase in U.S. Treasury rates, the impact of a higher rate base, and higher fully recoverable costs.
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ComEd
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs, capital investments being recovered, and the highest daily peak load, which is updated annually in January based on the prior calendar year. Generally, increases/decreases in the highest daily peak load will result in higher/lower transmission revenue. Transmission revenues increased during the year ended December 31, 2022, compared to the same period in 2021, primarily due to the impact of a higher rate base and higher fully recoverable costs.
Energy Efficiency Revenue. FEJA provides for a performance-based formula rate, which requires an annual reconciliation of the revenue requirement in effect to the actual costs that the ICC determines are prudently and reasonably incurred in a given year. Under FEJA, energy efficiency revenue varies from year to year based upon fluctuations in the underlying costs, investments being recovered, and allowed ROE. Energy efficiency revenue increased during the year ended December 31, 2022, compared to the same period in 2021, primarily due to higher allowed ROE due to an increase in U.S. Treasury rates, the impact of a higher rate base, and increased regulatory asset amortization, which is fully recoverable.
Other Revenue primarily includes assistance provided to other utilities through mutual assistance programs. Other revenue increased for the year ended December 31, 2022, compared to the same period in 2021, which primarily reflects mutual assistance revenues associated with storm restoration efforts.
Regulatory Required Programs represents revenues collected under approved riders to recover costs incurred for regulatory programs such as recoveries under the credit loss expense tariff, environmental costs associated with MGP sites, ETAC, and costs related to electricity, ZEC, CMC, and REC procurement. See Note 3 - Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding CMCs. ETAC is a retail customer surcharge collected by electric utilities operating in Illinois established by CEJA and remitted to an Illinois state agency for programs to support clean energy jobs and training. The riders are designed to provide full and current cost recovery. The costs of these programs are included in Purchased power expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries as ComEd remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, ComEd either acts as the billing agent or the competitive supplier separately bills its own customers, and therefore does not record Operating revenues or Purchased power expense related to the electricity. For customers that choose to purchase electric generation from ComEd, ComEd is permitted to recover the electricity, ZEC, CMC, and REC procurement costs without mark-up and therefore records equal and offsetting amounts in Operating revenues and Purchased power expense related to the electricity, ZECs, CMCs, and RECs.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of ComEd's revenue disaggregation.
The decrease of $1,162 million for the year ended December 31, 2022, compared to the same period in 2021, in Purchased power expense is primarily due to the CMCs from the participating nuclear-powered generating facilities. This favorability is offset by a decrease in Operating revenues as part of regulatory required programs. See Note 3 - Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding CMCs.
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ComEd
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Labor, other benefits, contracting, and materials$57 
Storm-related costs13 
BSC Costs13 
Pension and non-pension postretirement benefits expense(30)
Other
58 
Regulatory required programs(a)
(1)
Total increase$57 
__________
(a)ComEd is allowed to recover from or refund to customers the difference between its annual credit loss expense and the amounts collected in rates annually through a rider mechanism.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$63 
Regulatory asset amortization(b)
55 
Total increase$118 
__________
(a)Reflects ongoing capital expenditures.
(b)Includes amortization of ComEd's energy efficiency formula rate regulatory asset.

Taxes other than income taxes increased by $54 million for the year December 31, 2022, compared to the same period in 2021, primarily due to taxes related to ETAC, which is recovered through Operating revenues.
Interest expense, net increased $25 million for the year ended December 31, 2022, compared to the same period in 2021, primarily due to the issuance of debt in 2021 and 2022.
Effective income tax rateswere 22.4%and 18.8% for the years ended December 31, 2022and2021, respectively. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.
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PECO
Results of Operations—PECO
20222021Favorable (Unfavorable) Variance
Operating revenues$3,903 $3,198 $705 
Operating expenses
Purchased power and fuel1,535 1,081 (454)
Operating and maintenance992 934 (58)
Depreciation and amortization373 348 (25)
Taxes other than income taxes202 184 (18)
Total operating expenses3,102 2,547 (555)
Operating income801 651 150 
Other income and (deductions)
Interest expense, net(177)(161)(16)
Other, net31 26 
Total other income and (deductions)(146)(135)(11)
Income before income taxes655 516 139 
Income taxes79 12 (67)
Net income$576 $504 $72 
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $72 million, primarily due to increases in electric and gas distribution rates and a decrease in storm costs, partially offset by the one-time non-cash impacts associated with the Pennsylvania corporate income tax legislation passed in July 2022, and increases in depreciation expense, credit loss expense, and interest expense.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
ElectricGasTotal
Weather$32 $10 $42 
Volume(21)(13)
Pricing138 25 163 
Transmission15 — 15 
Other15 21 
179 49 228 
Regulatory required programs327 150 477 
Total increase$506 $199 $705 
Weather. The demand for electricity and natural gas is affected by weather conditions. With respect to the electric business, very warm weather in summer months and, with respect to the electric and natural gas businesses, very cold weather in winter months are referred to as “favorable weather conditions” because these weather conditions result in increased deliveries of electricity and natural gas. Conversely, mild weather reduces demand. For the year ended December 31, 2022 compared to the same period in 2021, Operating revenues related to weather increased due to the impact of favorable weather conditions in PECO's service territory.
Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 30-year period in PECO’s service territory. The changes in heating and cooling degree days in PECO’s service territory for the years ended December 31, 2022 compared to the same period in 2021 and normal weather consisted of the following:
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PECO
 For the Years Ended December 31, % Change
PECO Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days4,135 3,946 4,408 4.8 %(6.2)%
Cooling Degree-Days1,743 1,586 1,443 9.9 %20.8 %
Volume. Electric volume, exclusive of the effects of weather, for the year ended December 31, 2022 compared to the same period in 2021, decreased due to unfavorable load change. Natural gas volume for the year ended December 31, 2022 compared to the same period in 2021, increased due to favorable load change.
Electric Retail Deliveries to Customers (in GWhs)20222021% Change
Weather - Normal % Change(b)
Residential14,379 14,262 0.8 %(1.8)%
Small commercial & industrial7,701 7,597 1.4 %0.4 %
Large commercial & industrial14,046 14,003 0.3 %— %
Public authorities & electric railroads638 559 14.1 %14.1 %
Total electric retail deliveries(a)
36,764 36,421 0.9 %(0.4)%
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from PECO and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 30-year average.

 As of December 31,
Number of Electric Customers20222021
Residential1,525,635 1,517,806 
Small commercial & industrial155,576 155,308 
Large commercial & industrial3,121 3,107 
Public authorities & electric railroads10,393 10,306 
Total1,694,725 1,686,527 

Natural Gas Deliveries to customers (in mmcf)20222021% Change
Weather - Normal % Change(b)
Residential42,135 39,580 6.5 %3.0 %
Small commercial & industrial23,449 21,361 9.8 %6.0 %
Large commercial & industrial31 34 (8.8)%12.3 %
Transportation25,011 25,081 (0.3)%(1.8)%
Total natural gas deliveries(a)
90,626 86,056 5.3 %2.4 %
__________
(a)Reflects delivery volumes from customers purchasing natural gas directly from PECO and customers purchasing electricity from a competitive natural gas supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 30-year average.

 As of December 31,
Number of Gas Customers20222021
Residential502,944 497,873 
Small commercial & industrial44,957 44,815 
Large commercial & industrial
Transportation655 670 
Total548,565 543,364 
Pricing for the year ended December 31, 2022 compared to the same period in 2021 increased primarily due to increases in electric and gas distribution rates charged to customers.
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PECO
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered.
Other Revenue primarily includes revenue related to late payment charges. Other revenues for the year ended December 31, 2022 compared to the same period in 2021, increased primarily due to revenue related to late payment charges.
Regulatory Required Programs represents revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency, PGC, and the GSA. The riders are designed to provide full and current cost recovery as well as a return. The costs of these programs are included in Purchased power and fuel prices. The risk management groupexpense, Operating and Exelon’s RMC monitormaintenance expense, Depreciation and amortization expense, and Income taxes. Customers have the financial riskschoice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. Customer choice programs do not impact the volume of deliveries as PECO remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation or natural gas from competitive suppliers, PECO either acts as the billing agent or the competitive supplier separately bills its own customers and therefore PECO does not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from PECO, PECO is permitted to recover the electricity, natural gas, and REC procurement costs without mark-up and therefore records equal and offsetting amounts in Operating revenues and Purchased power and fuel expense related to the electricity, natural gas, and RECs.
See Note 5 — Segment Information of the wholesaleCombined Notes to Consolidated Financial Statements for the presentation of PECO's revenue disaggregation.
The increase of $454 million for the year ended December 31, 2022, compared to the same period in 2021, in Purchased power and retailfuel expense is fully offset in Operating revenues as part of regulatory required programs.
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
 (Decrease) Increase
Storm-related costs$(34)
Pension and non-pension postretirement benefits expense(9)
Credit loss expense
Labor, other benefits, contracting, and materials20 
BSC costs29 
Other(a)
30 
42 
Regulatory Required Programs16 
Total increase$58 
__________
(a) Primarily reflects an increase in charitable contributions.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
 Increase
Depreciation and amortization(a)
$24 
Regulatory asset amortization
Total increase$25 
__________
(a)Depreciation and amortization expense increased primarily due to ongoing capital expenditures.
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PECO
Taxes other than income taxes increased by $18 million for the year ended December 31, 2022, compared to the same period in 2021, primarily due to higher Pennsylvania gross receipts tax, which is offset in Operating revenues, and offset by lower Pennsylvania use tax.
Interest expense, net increased $16 million for the year ended December 31, 2022, compared to the same period in 2021, primarily due to the issuance of debt in 2021 and 2022 and increases in interest rates.
Effective income tax rates were 12.1% and 2.3% for the years ended December 31, 2022 and 2021, respectively. The change in effective tax rate is primarily related to the one-time non-cash impacts associated with the Pennsylvania corporate income tax legislation passed in July 2022. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.
62

BGE
Results of Operations—BGE
20222021Favorable (Unfavorable) Variance
Operating revenues$3,895 $3,341 $554 
Operating expenses
Purchased power and fuel1,567 1,175 (392)
Operating and maintenance877 811 (66)
Depreciation and amortization630 591 (39)
Taxes other than income taxes302 283 (19)
Total operating expenses3,376 2,860 (516)
Operating income519 481 38 
Other income and (deductions)
Interest expense, net(152)(138)(14)
Other, net21 30 (9)
Total other income and (deductions)(131)(108)(23)
Income before income taxes388 373 15 
Income taxes(35)(43)
Net income$380 $408 $(28)
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income decreased $28 million primarily due to an asset impairment in 2022 and an increase in depreciation expense, credit loss expense, and interest expense, partially offset by favorable impacts of the multi-year plans and a decrease in storm costs. See Note 11 — Asset Impairments for additional information on the asset impairment.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase
ElectricGasTotal
Distribution$70 $27 $97 
Transmission14 — 14 
Other10 10 20 
94 37 131 
Regulatory required programs272 151 423 
Total increase$366 $188 $554 
63

BGE
Revenue Decoupling. The demand for electricity and natural gas is affected by weather and customer usage. However, Operating revenues are not impacted by abnormal weather or usage per customer as a result of a monthly rate adjustment that provides for fixed distribution revenue per customer by customer class. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on revenue decoupling for BGE.
As of December 31,
Number of Electric Customers20222021
Residential1,204,429 1,195,929 
Small commercial & industrial115,524 115,049 
Large commercial & industrial12,839 12,637 
Public authorities & electric railroads266 268 
Total1,333,058 1,323,883 
As of December 31,
Number of Gas Customers20222021
Residential655,373 651,589 
Small commercial & industrial38,207 38,300 
Large commercial & industrial6,233 6,179 
Total699,813 696,068 
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021, due to favorable impacts of the multi-year plans.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to increases in underlying costs and capital investments.
Other Revenue includes revenue related to late payment charges, mutual assistance, off-system sales, and service application fees. Other revenue increased for the year ended December 31, 2022 compared to the same period in 2021, primarily due to an increase in late fees charged to customers.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as conservation, demand response, STRIDE, and the POLR mechanism. The riders are designed to provide full and current cost recovery, as well as a return in certain instances. The costs of these programs are included in Purchased power marketingand fuel expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. Customer choice programs do not impact the volume of deliveries as BGE remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation or natural gas from competitive suppliers, BGE acts as the billing agent and therefore does not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from BGE, BGE is permitted to recover the electricity and natural gas procurement costs from customers and therefore records the amounts related to the electricity and/or natural gas in Operating revenues and Purchased power and fuel expense. BGE recovers electricity and natural gas procurement costs from customers with a slight mark-up.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of BGE's revenue disaggregation.
The increase of $392 million for the year ended December 31, 2022 compared to the same period in 2021 in Purchased power and fuel expense is fully offset in Operating revenues as part of regulatory required programs.
64

BGE
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Asset impairment(a)
$48 
BSC costs14 
Credit loss expense
Labor, other benefits, contracting, and materials
Storm-related costs(11)
Pension and non-pension postretirement benefits expense(12)
Other12 
62 
Regulatory required programs
Total increase$66 
__________
(a)See Note 11 — Asset Impairments for additional information on the asset impairment.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$35 
Regulatory required programs
Regulatory asset amortization
Total increase$39 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.
Taxes other than income taxes increased by $19 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to increased property taxes.
Interest expense, net increased $14 million for the year ended December 31, 2022 compared to the same period in 2021, due to the issuance of debt in 2021 and 2022 and increases in interest rates.
Effective income tax rates were 2.1% and (9.4)% for the years ended December 31, 2022 and 2021, respectively. The change is primarily due to decreases in the multi-year plans' accelerated income tax benefits in 2022 compared to 2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on both the three-year electric and natural gas distribution multi-year plans and Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.
65

PHI
Results of Operations—PHI
PHI’s Results of Operations include the results of its three reportable segments, Pepco, DPL, and ACE. PHI also has a business services subsidiary, PHISCO, which provides a variety of support services and the costs are directly charged or allocated to the applicable subsidiaries. Additionally, the results of PHI's corporate operations include interest costs from various financing activities. Generation also uses financialAll material intercompany accounts and commodity contractstransactions have been eliminated in consolidation. The following table sets forth PHI's GAAP consolidated Net income, by Registrant, for proprietary trading purposes, but this activity accountsthe year ended December 31, 2022 compared to the same period in 2021. See the Results of Operations for Pepco, DPL, and ACE for additional information.
20222021Favorable (Unfavorable) Variance
PHI$608 $561 $47 
Pepco305 296 
DPL169 128 41 
ACE148 146 
Other(a)
(14)(9)(5)
__________
(a)Primarily includes eliminating and consolidating adjustments, PHI's corporate operations, shared service entities, and other financing and investing activities.
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021. Net income increased by $47 million primarily due to favorable impacts as a result of Pepco's Maryland and District of Columbia multi-year plans, higher distribution rates at DPL and ACE, and the absence of the recognition of a valuation allowance against a deferred tax asset due to a change in Delaware tax law in 2021 at DPL, partially offset by an increase in depreciation expense, interest expense, credit loss expense and storm costs at Pepco and DPL.
66

Pepco
Results of Operations—Pepco
20222021Favorable (Unfavorable) Variance
Operating revenues$2,531 $2,274 $257 
Operating expenses
    Purchased power834 624 (210)
Operating and maintenance507 471 (36)
Depreciation and amortization417 403 (14)
Taxes other than income taxes382 373 (9)
Total operating expenses2,140 1,871 (269)
Operating income391 403 (12)
Other income and (deductions)
Interest expense, net(150)(140)(10)
Other, net55 48 
Total other income and (deductions)(95)(92)(3)
Income before income taxes296 311 (15)
Income taxes(9)15 24 
Net income$305 $296 $
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $9 million primarily due to favorable impacts of the Maryland and District of Columbia multi-year plans, partially offset by an increase in credit loss expense, depreciation expense, interest expense and storm costs.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
Distribution$44 
Transmission
Other(3)
42 
Regulatory required programs215 
Total increase$257 
Revenue Decoupling. The demand for electricity is affected by weather and customer usage. However, Operating revenues from electric distribution in both Maryland and the District of Columbia are not impacted by abnormal weather or usage per customer as a result of a BSA that provides for a fixed distribution charge per customer by customer class. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on revenue decoupling for Pepco Maryland and District of Columbia.
As of December 31,
Number of Electric Customers20222021
Residential856,037 841,831 
Small commercial & industrial54,339 54,216 
Large commercial & industrial22,841 22,568 
Public authorities & electric railroads197 181 
Total933,414 918,796 
67

Pepco
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021, primarily due to favorable impacts of the Maryland and District of Columbia multi-year plans.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue remained relatively consistent for the year ended December 31, 2022 compared to the same period in 2021.
Other Revenue includes rental revenue, revenue related to late payment charges, mutual assistance revenues, and recoveries of other taxes.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs, DC PLUG, and SOS procurement and administrative costs. The riders are designed to provide full and current cost recovery as well as a return in certain instances. The costs of these programs are included in Purchased power expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries, as Pepco remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, Pepco acts as the billing agent and therefore, Pepco does not record Operating revenues or Purchased power expense related to the electricity. For customers that choose to purchase electric generation from Pepco, Pepco is permitted to recover the electricity and REC procurement costs from customers and therefore records the amounts related to the electricity and RECs in Operating revenues and Purchased power expense. Pepco recovers electricity and REC procurement costs from customers with a slight mark-up.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of Pepco's revenue disaggregation.
The increase of $210 million for the year ended December 31, 2022 compared to the same period in 2021, in Purchased power expense is fully offset in Operating revenues as part of regulatory required programs.

68

Pepco
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Credit loss expense$17 
BSC and PHISCO costs13 
Storm-related costs
Labor, other benefits, contracting, and materials(2)
Other(6)
30 
Regulatory required programs
Total increase$36 
The changes in Depreciation and amortizationexpense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Depreciation and amortization(a)
$14 
Regulatory asset amortization(3)
Regulatory required programs
Total increase$14 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.
Taxes other than income taxes increased $9 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to an increase in property taxes and gross receipts taxes.
Interest expense, net increased $10 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to the issuance of debt in 2021 and 2022 and increases in interest rates.
Other, net increased $7 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to higher AFUDC equity.
Effective income tax rates were (3.0)% and 4.8% for the years ended December 31, 2022 and 2021, respectively. The change is primarily due to the acceleration of certain income tax benefits as a result of the Maryland and District of Columbia multi-year plans. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on the three-year electric distribution multi-year plans and Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.

69

DPL
Results of Operations—DPL
20222021Favorable (Unfavorable) Variance
Operating revenues$1,595 $1,380 $215 
Operating expenses
Purchased power and fuel706 539 (167)
Operating and maintenance349 345 (4)
Depreciation and amortization232 210 (22)
Taxes other than income taxes72 67 (5)
Total operating expenses1,359 1,161 (198)
Operating income236 219 17 
Other income and (deductions)
Interest expense, net(66)(61)(5)
Other, net13 12 
Total other income and (deductions)(53)(49)(4)
Income before income taxes183 170 13 
Income taxes14 42 28 
Net income$169 $128 $41 
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $41 million primarily due to higher distribution rates and the absence of the recognition of a valuation allowance against a deferred tax asset due to a change in Delaware tax law in 2021, partially offset by an increase in depreciation expense, interest expense, storm costs, and credit loss expense.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
ElectricGasTotal
Weather$— $$
Volume
Distribution23 32 
Transmission— 
Other(2)— (2)
29 14 43 
Regulatory required programs116 56 172 
Total increase$145 $70 $215 
Revenue Decoupling. The demand for electricity is affected by weather and customer usage. However, Operating revenues from electric distribution in Maryland are not impacted by abnormal weather or usage per customer as a result of a BSA that provides for a fixed distribution charge per customer by customer class. While Operating revenues from electric distribution customers in Maryland are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on revenue decoupling for DPL Maryland.
Weather. The demand for electricity and natural gas in Delaware is affected by weather conditions. With respect to the electric business, very warm weather in summer months and, with respect to the electric and natural gas businesses, very cold weather in winter months are referred to as "favorable weather conditions” because these weather conditions result in increased deliveries of electricity and natural gas. Conversely, mild weather reduces demand. During the year ended December 31, 2022 compared to the same period in 2021, Operating revenues related to weather increased due to favorable weather conditions in DPL's Delaware natural gas service territory.
70

DPL
Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 20-year period in DPL's Delaware electric service territory and a 30-year period in DPL's Delaware natural gas service territory. The changes in heating and cooling degree days in DPL’s Delaware service territory for the year ended December 31, 2022 compared to same period in 2021 and normal weather consisted of the following:
For the Years Ended December 31,% Change
Delaware Electric Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days4,428 4,239 4,593 4.5 %(3.6)%
Cooling Degree-Days1,382 1,380 1,272 0.1 %8.6 %
For the Years Ended December 31,% Change
Delaware Natural Gas Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days4,428 4,239 4,676 4.5 %(5.3)%
Volume, exclusive of the effects of weather, increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to customer growth and usage.
Electric Retail Deliveries to Delaware Customers (in GWhs)20222021% Change
Weather - Normal % Change (b)
Residential3,242 3,214 0.9 %(0.1)%
Small commercial & industrial1,443 1,452 (0.6)%(1.0)%
Large commercial & industrial3,162 3,149 0.4 %0.4 %
Public authorities & electric railroads33 34 (2.9)%(4.4)%
Total electric retail deliveries(a)
7,880 7,849 0.4 %(0.1)%
As of December 31,
Number of Total Electric Customers (Maryland and Delaware)20222021
Residential481,688 476,260 
Small commercial & industrial63,738 63,195 
Large commercial & industrial1,235 1,218 
Public authorities & electric railroads597 604 
Total547,258 541,277 
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from DPL and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 20-year average.
Natural Gas Retail Deliveries to Delaware Customers (in mmcf)20222021% Change
Weather - Normal % Change(b)
Residential8,709 7,914 10.0 %4.2 %
Small commercial & industrial4,176 3,747 11.4 %7.0 %
Large commercial & industrial1,697 1,679 1.1 %1.1 %
Transportation6,696 6,778 (1.2)%(2.3)%
Total natural gas deliveries(a)
21,278 20,118 5.8 %2.4 %

71

DPL
As of December 31,
Number of Delaware Natural Gas Customers20222021
Residential129,502 128,121 
Small commercial & industrial10,144 10,027 
Large commercial & industrial17 20 
Transportation156 158 
Total139,819 138,326 
__________
(a)Reflects delivery volumes from customers purchasing natural gas directly from DPL and customers purchasing natural gas from a competitive natural gas supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 30-year average.
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to higher electric distribution rates in Maryland that became effective in March 2022, higher DSIC rates in Delaware that became effective in January and July 2022, and higher natural gas distribution rates in Delaware that became effective in August 2022.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to increases in underlying costs.
Other Revenue includes rental revenue, revenue related to late payment charges, mutual assistance revenues, and recoveries of other taxes.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs, DE Renewable Portfolio Standards, SOS procurement and administrative costs, and GCR costs. The riders are designed to provide full and current cost recovery as well as a return in certain instances. The costs of these programs are included in Purchased power and fuel expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. All customers have the choice to purchase electricity from competitive electric generation suppliers; however, only certain commercial and industrial customers have the choice to purchase natural gas from competitive natural gas suppliers. Customer choice programs do not impact the volume of deliveries as DPL remains the distribution service provider for all customers and charges a small portionregulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation or natural gas from competitive suppliers, DPL either acts as the billing agent or the competitive supplier separately bills its own customers, and therefore does not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from DPL, DPL is permitted to recover the electricity, natural gas, and REC procurement costs from customers and therefore records the amounts related to the electricity, natural gas, and RECs in Operating revenues and Purchased power and fuel expense. DPL recovers electricity and REC procurement costs from customers with a slight mark-up, and natural gas costs without mark-up.
See Note 5 — Segment Information of Generation’s efforts. the Combined Notes to Consolidated Financial Statements for the presentation of DPL's revenue disaggregation.
The proprietary trading portfolioincrease of $167 million for the year ended December 31, 2022 compared to the same period in 2021, in Purchased power and fuel expense is fully offset in Operating revenues as part of regulatory required programs.
72

DPL
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Credit loss expense$
Storm-related costs
BSC and PHISCO costs
Labor, other benefits, contracting, and materials(13)
Other(3)
(1)
Regulatory required programs
Total increase$
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Depreciation and amortization(a)
$23 
Regulatory asset amortization(3)
Regulatory required programs
Total increase$22 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.

Taxes other than income taxes increased by $5 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to an increase in property taxes and gross receipts taxes.
Interest expense, net increased $5 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to the issuance of debt in 2021 and 2022.
Effective income tax rates were 7.7%and24.7% for the years ended December 31, 2022and2021, respectively. The decrease for the year ended December 31, 2022 is primarily related to the absence of the recognition of a valuation allowance against a deferred tax asset due to a change in Delaware tax law in 2021. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the change in effective income tax rates.
73

ACE
Results of Operations—ACE
20222021Favorable
(Unfavorable) Variance
Operating revenues$1,431 $1,388 $43 
Operating expenses
Purchased power624 694 70 
Operating and maintenance331 320 (11)
Depreciation and amortization261 179 (82)
Taxes other than income taxes(1)
Total operating expenses1,225 1,201 (24)
Operating income206 187 19 
Other income and (deductions)
Interest expense, net(66)(58)(8)
Other, net11 
Total other income and (deductions)(55)(54)(1)
Income before income taxes151 133 18 
Income taxes(13)(16)
Net income$148 $146 $
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021. Net income increased $2 million primarily due to increases in distribution rates, partially offset by an increase in depreciation expense, the absence of favorable weather and volume as a result of the CIP, and an increase in interest expense.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
(Decrease) Increase
Weather$(3)
Volume(11)
Distribution48 
Transmission
Other(1)
42 
Regulatory required programs
Total increase$43 
Revenue Decoupling. The demand for electricity is affected by weather and customer usage. However, Operating revenues from electric distribution in New Jersey are not impacted by abnormal weather or usage per customer as a result of the CIP which became effective, prospectively, in the third quarter of 2021. The CIP compares current distribution revenues by customer class to approved target revenues established in ACE’s most recent distribution base rate case. The CIP is calculated annually, and recovery is subject to a risk management policy that includes stringent risk management limits.certain conditions, including an earnings test and ceilings on customer rate increases. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKNote 3 — Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information on the ACE CIP.
Weather. Prior to the third quarter of 2021, the demand for electricity was affected by weather conditions. With respect to the electric business, very warm weather in summer months and very cold weather in winter months are referred to as “favorable weather conditions” because these weather conditions result in increased deliveries of electricity. Conversely, mild weather reduces demand. During the year ended December 31, 2022 compared to the same period in 2021, Operating revenues related to weather decreased due to the absence of favorable impacts in the first and second quarter of 2022 as a result of the CIP.
74

ACE
Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 20-year period in ACE’s service territory. The changes in heating and cooling degree days in ACE’s service territory for the year ended December 31, 2022 compared to same period in 2021 and normal weather consisted of the following:
For the Years Ended December 31,Normal% Change
Heating and Cooling Degree-Days202220212022 vs. 20212022 vs. Normal
Heating Degree-Days4,629 4,256 4,589 8.8 %0.9 %
Cooling Degree-Days1,243 1,284 1,210 (3.2)%2.7 %
Volume,exclusive of the effects of weather, decreased for the year ended December 31, 2022 compared to the same period in 2021, primarily due to the absence of favorable impacts in the first and second quarter of 2022 as a result of the CIP.
Electric Retail Deliveries to Customers (in GWhs)20222021% Change
Weather - Normal % Change(b)
Residential4,131 4,220 (2.1)%(2.4)%
Small commercial & industrial1,499 1,409 6.4 %6.2 %
Large commercial & industrial3,103 3,146 (1.4)%(1.5)%
Public authorities & electric railroads47 46 2.2 %1.8 %
Total electric retail deliveries(a)
8,780 8,821 (0.5)%(0.7)%

As of December 31,
Number of Electric Customers20222021
Residential502,247 499,628 
Small commercial & industrial62,246 61,900 
Large commercial & industrial3,051 3,156 
Public authorities & electric railroads734 717 
Total568,278 565,401 
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from ACE and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 20-year average.
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021 due to higher distribution rates that became effective in January 2022.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to increases in capital investment and underlying costs.
Other Revenue includes rental revenue, service connection fees, and mutual assistance revenues.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs, Societal Benefits Charge, Transition Bonds, and BGS procurement and administrative costs. The riders are designed to provide full and current cost recovery as well as a return in certain instances. The costs of these programs are included in Purchased power expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries, as ACE remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, ACE acts as the
75

ACE
billing agent and therefore, ACE does not record Operating revenues or Purchased power expense related to the electricity. For customers that choose to purchase electric generation from ACE, ACE is permitted to recover the electricity, ZEC, and REC procurement costs without mark-up and therefore records equal and offsetting amounts in Operating revenues and Purchased power expense related to the electricity, ZECs, and RECs.
See Note 5 - Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of ACE's revenue disaggregation.
The decrease of $70 million for the year ended December 31, 2022 compared to same period in 2021, in Purchased power expense is fully offset in Operating revenues as part of regulatory required programs.
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
(Decrease) Increase
Labor, other benefits, contracting and materials$(5)
Storm-related costs
BSC and PHISCO costs
Other
Regulatory required programs(a)
Total increase$11 
__________
(a)ACE is allowed to recover from or refund to customers the difference between its annual credit loss expense and the amounts collected in rates annually through the Societal Benefits Charge.
The changes in Depreciation and amortizationexpense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$18 
Regulatory asset amortization
Regulatory required programs(b)
62 
Total increase$82 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.
(b)Regulatory required programs increased primarily due to the regulatory asset amortization of the PPA termination obligation which is fully offset in Operating revenues.
Interest expense, net increased $8 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to the issuance of debt in 2021 and 2022.
Other, net increased $7 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to higher AFUDC equity.
Effective income tax rates were 2.0% and (9.8)% for the years ended December 31, 2022 and 2021, respectively. The change is primarily related to the absence of impacts of the July 14, 2021 settlement, which allowed ACE to retain certain tax benefits in 2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding the July 14, 2021 settlement agreement and Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.


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Liquidity and Capital Resources
All results included throughout the liquidity and capital resources section are presented on a GAAP basis.
The Registrants’ operating and capital expenditures requirements are provided by internally generated cash flows from operations, as well as funds from external sources in the capital markets and through bank borrowings. The Registrants’ businesses are capital intensive and require considerable capital resources. Each of the Registrants annually evaluates its financing plan, dividend practices, and credit line sizing, focusing on maintaining its investment grade ratings while meeting its cash needs to fund capital requirements, including construction expenditures, retire debt, pay dividends, and fund pension and OPEB obligations. The Registrants spend a significant amount of cash on capital improvements and construction projects that have a long-term return on investment. Additionally, the Utility Registrants operate in rate-regulated environments in which the amount of new investment recovery may be delayed or limited and where such recovery takes place over an extended period of time. Each Registrant’s access to external financing on reasonable terms depends on its credit ratings and current overall capital market business conditions, including that of the utility industry in general. If these conditions deteriorate to the extent that the Registrants no longer have access to the capital markets at reasonable terms, the Registrants have access to credit facilities with aggregate bank commitments of $4.0 billion, as of December 31, 2022. The Registrants utilize their credit facilities to support their commercial paper programs, provide for other short-term borrowings, and to issue letters of credit. See the “Credit Matters and Cash Requirements” section below for additional information. The Registrants expect cash flows to be sufficient to meet operating expenses, financing costs, and capital expenditure requirements. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the Registrants’ debt and credit agreements.
Cash flows related to Generation have not been presented as discontinued operations and are included in the Consolidated Statements of Cash Flows for all periods presented. The Exelon Consolidated Statement of Cash Flows for the year ended December 31, 2022 includes one month of cash flows from Generation. The Exelon Consolidated Statement of Cash Flows for the year ended December 31, 2021 includes twelve months of cash flows from Generation. This is the primary reason for the changes in cash flows as shown in the tables unless otherwise noted below.
Cash Flows from Operating Activities
The Utility Registrants' cash flows from operating activities primarily result from the transmission and distribution of electricity and, in the case of PECO, BGE, and DPL, gas distribution services. The Utility Registrants' distribution services are provided to an established and diverse base of retail customers. The Utility Registrants' future cash flows may be affected by the economy, weather conditions, future legislative initiatives, future regulatory proceedings with respect to their rates or operations, and their ability to achieve operating cost reductions. Additionally, ComEd is required to purchase CMCs from participating nuclear-powered generating facilities for a five-year period, and all of its costs of doing so will be recovered through a new rider. The price to be paid for each CMC is established through a competitive bidding process. ComEd will provide net payments to, or collect net payments from, customers for the difference between customer credits issued and the credit to be received from the participating nuclear-powered generating facilities. ComEd’s cash flows are affected by the establishment of CMC prices and the timing of recovering costs through the CMC regulatory asset.
See Note 3 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information on regulatory and legal proceedings and proposed legislation.
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The following table provides a summary of the change in cash flows from operating activities for the years ended December 31, 2022 and 2021 by Registrant:
Increase (decrease) in cash flows from operating activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Net income$342 $175 $72 $(28)$47 $$41 $
Adjustments to reconcile net income to cash:
Non-cash operating activities(2,382)(176)124 173 259 93 25 141 
Option premiums paid, net299 — — — — — — — 
Collateral received (posted), net1,322 51 — 16 99 22 35 42 
Income taxes(331)— (25)(37)(18)(30)(13)11 
Pension and non-pension postretirement benefit contributions49 12 — 13 (30)— — (4)
Regulatory assets and liabilities, net(692)(645)(24)(8)(37)12 (43)
Changes in working capital and other noncurrent assets and liabilities3,251 185 (79)(98)(227)(97)(64)(60)
Increase (decrease) in cash flows from operating activities$1,858 $(398)$68 $31 $93 $$33 $89 
Changes in the Registrants' cash flows from operations were generally consistent with changes in each Registrant’s respective results of operations, as adjusted by changes in working capital in the normal course of business, except as discussed below. See above for additional information related to cash flows from Generation. Significant operating cash flow impacts for the Registrants and Generation for 2022 and 2021 were as follows:
See Note 22 —Supplemental Financial Information of the Combined Notes to Consolidated Financial Statements and the Registrants’ Consolidated Statements of Cash Flows for additional information on non-cash operating activities.
Changes in collateral depended upon whether Generation was in a net mark-to-market liability or asset position, and collateral may have been required to be posted with or collected from its counterparties. In addition, the collateral posting and collection requirements differed depending on whether the transactions were on an exchange or in the over-the-counter markets. Changes in collateral for the Utility Registrants are dependent upon the credit exposure of procurement contracts that may require suppliers to post collateral. The amount of cash collateral received from external counterparties increased due to rising energy prices. See Note 15 — Derivative Financial Instruments for additional information.
See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements and the Registrants' Consolidated Statements of Cash Flows for additional information on income taxes.
Changes in regulatory assets and liabilities, net, are due to the timing of cash payments for costs recoverable, or cash receipts for costs recovered, under our regulatory mechanisms differs from the recovery period of those costs. Included within the changes is energy efficiency spend for ComEd of $394 million and $343 million for the years ended December 31, 2022 and 2021, respectively. Also included within the changes is energy efficiency and demand response programs spend for BGE, Pepco, DPL, and ACE of $113 million, $71 million, $28 million, and $11 million for the year ended December 31, 2022, respectively, and $107 million, $72 million, $29 million, and $4 million for the year ended December 31, 2021, respectively. PECO had no energy efficiency and demand response programs spend recorded to a regulatory asset for the years ended December 31, 2022 and 2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Changes in working capital and other noncurrent assets and liabilities for the Utility Registrants and Exelon Corporate total $(304) million and for Generation total $3,555 million. The change for Generation primarily relates to the revolving accounts receivable financing arrangement. See the Collection of DPP discussion below for additional information. The change in working capital and other noncurrent assets and liabilities for Exelon Corporate and the Utility Registrants is dependent upon the normal course of operations for all Registrants. For ComEd, it is also
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dependent upon whether the participating nuclear-powered generating facilities owe money to ComEd as a result of the established pricing for CMCs. In 2022, the established pricing resulted in a receivable from nuclear-powered generating facilities, which is reported within the cash flows from operations as a change in accounts receivable. In future periods the established pricing could result in ComEd owing payments to nuclear-powered generating facilities, which would be reported within cash flows from operations as a change in accounts payable and accrued expenses.
Cash Flows from Investing Activities
The following table provides a summary of the change in cash flows from investing activities for the years ended December 31, 2022 and 2021 by Registrant:
Increase (decrease) in cash flows from investing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Capital expenditures$834 $(119)$(109)$(36)$11 $(31)$(1)$47 
Investment in NDT fund sales, net113 — — — — — — — 
Collection of DPP(3,733)— — — — — — — 
Proceeds from sales of assets and businesses(861)— — — — — — — 
Other investing activities(26)(1)(7)(1)— 
(Decrease) increase in cash flows from investing activities$(3,673)$(117)$(110)$(43)$15 $(27)$(2)$47 
Significant investing cash flow impacts for the Registrants for 2022 and 2021 were as follows:
Variances in capital expenditures are primarily due to the timing of cash expenditures for capital projects. See the "Credit Matters and Cash Requirements" section below for additional information on projected capital expenditure spending for the Utility Registrants. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for capital expenditures related to Generation prior to the separation.
Collection of DPP relates to Generation's revolving accounts receivable financing agreement which Generation entered into in April 2020. Generation received $400 million of additional funding related to the DPP in February and March of 2021.
Proceeds from sales of assets and businesses decreased primarily due to the sale of a significant portion of Generation's solar business and a biomass facility in 2021.
Cash Flows from Financing Activities
The following table provides a summary of the change in cash flows from financing activities for the years ended December 31, 2022 and 2021 by Registrant:
(Decrease) increase in cash flows from financing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Changes in short-term borrowings, net$(513)$900 $239 $148 $(154)$(16)$(37)$(101)
Long-term debt, net2,395 (50)(25)(50)50 40 — 10 
Changes in intercompany money pool— — 40 — 51 — — — 
Issuance of common stock563 — — — — — — — 
Dividends paid on common stock163 (71)(60)(8)— (195)143 
Acquisition of noncontrolling interest885 — — — — — — — 
Distributions to member— — — — (47)— — — 
Contributions from parent/member— (121)(140)29 104 221 27 (144)
Transfer of cash, restricted cash, and cash equivalents to Constellation(2,594)— — — — — — — 
Other financing activities(66)(6)(5)(5)(4)— — 
Increase (decrease) in cash flows from financing activities$833 $663 $48 $114 $(1)$46 $(6)$(92)
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Significant financing cash flow impacts for the Registrants for 2022 and 2021 were as follows:
Changes in short-term borrowings, net, are driven by repayments on and issuances of notes due in less than 365 days. Refer to Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on short-term borrowings for the Registrants. These changes also included repayments of $552 million in commercial paper and term loans by Generation prior to the separation.
Long-term debt, net, varies due to debt issuances and redemptions each year. Refer to the debt issuances and redemptions tables below for additional information for the Registrants.
Changes inintercompany money pool are driven by short-term borrowing needs. Refer below for more information regarding the intercompany money pool.
Issuance of common stock relates to the August 2022 underwritten public offering of Exelon common stock. See Note 19 — Shareholders' Equity of the Combined Notes to Consolidated Financial Statements for additional information.
Exelon’s ability to pay dividends on its common stock depends on the receipt of dividends paid by its operating subsidiaries. The payments of dividends to Exelon by its subsidiaries in turn depend on their results of operations and cash flows and other items affecting retained earnings. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information on dividend restrictions. See below for quarterly dividends declared.
Acquisition of noncontrolling interest relates to Generation's acquisition of CENG noncontrolling interest in 2021.
Refer to Note 2 — Discontinued Operations for the transfer of cash, restricted cash, and cash equivalents to Constellation related to the separation.
Other financing activities primarily consists of debt issuance costs. See debt issuances table below for additional information on the Registrants’ debt issuances.
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Debt Issuances and Redemptions
See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information of the Registrants’ long-term debt. Debt activity for 2022 and 2021 by Registrant was as follows:
During 2022, the following long-term debt was issued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonSMBC Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
$300Fund a cash payment to Constellation and for general corporate purposes.
ExelonU.S. Bank Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
300Fund a cash payment to Constellation and for general corporate purposes.
ExelonPNC Term Loan AgreementSOFR plus 0.65%
July 24, 2023(a)
250Fund a cash payment to Constellation and for general corporate purposes.
Exelon
Notes(b)
2.75%March 15, 2027650Repay existing indebtedness and for general corporate purposes.
Exelon
Notes(b)
3.35%March 15, 2032650Repay existing indebtedness and for general corporate purposes.
Exelon
Notes(b)
4.10%March 15, 2052700Repay existing indebtedness and for general corporate purposes.
ExelonLong-Term Software License Agreements2.30%December 1, 202517Procurement of software licenses
ExelonLong-Term Software License Agreements3.70%August 9, 20258Procurement of software licenses
ExelonSMBC Term Loan AgreementSOFR plus 0.85%April 7, 2024500Repay existing indebtedness and for general corporate purposes.
ComEd(c)
First Mortgage Bonds, Series 1323.15%March 15, 2032300Repay outstanding commercial paper obligations and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1333.85%March 15, 2052450Repay outstanding commercial paper obligations and to fund other general corporate purposes.
PECOFirst and Refunding Mortgage Bonds4.60%May 15, 2052350Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds4.375%August 15, 2052425Refinance outstanding commercial paper and for general corporate purposes.
BGENotes4.55%June 1, 2052500Repay outstanding commercial paper obligations, repay existing indebtedness, and for general corporate purposes.
PepcoFirst Mortgage Bonds3.97%March 24, 2052400Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.35%September 15, 2032225Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.06%February 15, 2052125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203225Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds3.06%February 15, 2052150Repay existing indebtedness and for general corporate purposes.
__________
(a)During the third quarter of 2022, the SMBC Term Loan, U.S. Bank Term Loan, and PNC Term Loan were all reclassified to Long-term debt due within one year on the Exelon Consolidated Balance Sheet, given that the Term Loans have maturity dates of July 21, 2023 , and July 24, 2023, respectively.
(b)In connection with the issuance and sale of the Notes, Exelon entered into a Registration Rights Agreement with the representatives of the initial purchasers of the Notes and other parties. Pursuant to the Registration Rights Agreement,
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Exelon filed a registration statement on August 3, 2022, with respect to an offer to exchange the Notes for substantially similar notes of Exelon that are registered under the Securities Act. An exchange offer of registered notes for the Notes was completed on January 12, 2023. The registered notes issued in exchange for Notes in the exchange offer have terms identical in all respects to the Notes, except that their issuance was registered under the Securities Act.
(c)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
During 2021, the following long-term debt was issued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonLong-Term Software License Agreements3.62%December 1, 2025$4Procurement of software licenses.
ComEdFirst Mortgage Bonds, Series 1303.13%March 15, 2051700Repay a portion of outstanding commercial paper obligations and two outstanding term loans, and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1312.75%September 1, 2051450Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds3.05%March 15, 2051375Funding for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds2.85%September 15, 2051375Refinance existing indebtedness and for general corporate purposes.
BGESenior Notes2.25%June 15, 2031600Repay a portion of outstanding commercial paper obligations, repay existing indebtedness, and to fund other general corporate purposes.
PepcoFirst Mortgage Bonds2.32%March 30, 2031150Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.29%September 28, 2051125Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.24%March 30, 2051125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.30%March 15, 2031350Refinance existing indebtedness, repay outstanding commercial paper obligations, and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203275Repay existing indebtedness and for general corporate purposes.

During 2022, the following long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonJunior Subordinated Notes3.50%May 2, 2022$1,150 
ExelonLong-Term Software License Agreement3.96%May 1, 20242
ExelonLong-Term Software License Agreement2.30%December 1, 2025
ExelonLong-Term Software License Agreement3.70%August 9, 2025
PECOFirst Mortgage Bonds2.375%September 15, 2022350 
BGENotes2.80%August 15, 2022250
PepcoFirst Mortgage Bonds3.05%April 1, 2022200
PepcoTax-Exempt Bonds1.70%September 1, 2022110
Additionally, in connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle an intercompany loan that mirrored the terms and amounts of the third-party debt obligations. The loan agreements were entered into as part of the 2012 Constellation merger. See Note 16
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— Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the mirror debt.
During 2021, the following long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonSenior Notes2.45%April 15, 2021$300 
ExelonLong-Term Software License Agreements3.95%May 1, 202424
ExelonLong-Term Software License Agreements3.62%December 1, 20251
ComEdFirst Mortgage Bonds3.40%September 1, 2021350
PECOFirst Mortgage Bonds1.70%September 15, 2021300
BGESenior Notes3.50%November 15, 2021300
ACEFirst Mortgage Bonds4.35%April 1, 2021200
ACETax-Exempt First Mortgage Bonds6.80%March 1, 202139
ACETransition Bonds5.55%October 20, 202121
From time to time and as market conditions warrant, the Registrants may engage in long-term debt retirements via tender offers, open market repurchases or other viable options to reduce debt on their respective balance sheets.
Dividends
Quarterly dividends declared by the Exelon Board of Directors during the year ended December 31, 2022 and for the first quarter of 2023 were as follows:
PeriodDeclaration DateShareholder of
Record Date
Dividend Payable Date
Cash per Share(a)
First Quarter 2022February 8, 2022February 25, 2022March 10, 2022$0.3375 
Second Quarter 2022April 26, 2022May 13, 2022June 10, 2022$0.3375 
Third Quarter 2022July 26, 2022August 15, 2022September 9, 2022$0.3375 
Fourth Quarter 2022October 28, 2022November 15, 2022December 9, 2022$0.3375 
First Quarter 2023February 14, 2023February 27, 2023March 10, 2023$0.3600 
___________
(a)Exelon's Board of Directors approved an updated dividend policy for 2023. The 2023 quarterly dividend will be $0.36 per share.
Credit Matters and Cash Requirements
The Registrants fund liquidity needs for capital expenditures, working capital, energy hedging, and other financial commitments through cash flows from continuing operations, public debt offerings, commercial paper markets, and large, diversified credit facilities. The credit facilities include $4.0 billion in aggregate total commitments of which $2.1 billion was available to support additional commercial paper as of December 31, 2022, and of which no financial institution has more than 6% of the aggregate commitments for the Registrants. On February 1, 2022, Exelon Corporate and the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information. The Registrants had access to the commercial paper markets and had availability under their revolving credit facilities during 2022 to fund their short-term liquidity needs, when necessary. The Registrants routinely review the sufficiency of their liquidity position, including appropriate sizing of credit facility commitments, by performing various stress test scenarios, such as commodity price movements, increases in margin-related transactions, changes in hedging levels, and the impacts of hypothetical credit downgrades. The Registrants closely monitor events in the financial markets and the financial institutions associated with the credit facilities, including monitoring credit ratings and outlooks, credit default swap levels, capital raising, and merger activity. See PART I, ITEM 1A. RISK FACTORS for additional information regarding the effects of uncertainty in the capital and credit markets.
The Registrants believe their cash flow from operating activities, access to credit markets, and their credit facilities provide sufficient liquidity to support the estimated future cash requirements discussed below.
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On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering of 12.995 million shares of its common stock, no par value. The net proceeds were $563 million before expenses paid. Exelon used the proceeds, together with available cash balances, to repay $575 million in borrowings under a $1.15 billion term loan credit facility. See Note 19 — Shareholders' Equity and Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.
On August 4, 2022, Exelon executed an equity distribution agreement (“Equity Distribution Agreement”) with certain sales agents and forward sellers and certain forward purchasers establishing an ATM equity distribution program under which it may offer and sell shares of its common stock, having an aggregate gross sales price of up to $1.0 billion. Exelon has no obligation to offer or sell any shares of common stock under the Equity Distribution Agreement and may at any time suspend or terminate offers and sales under the Equity Distribution Agreement. As of December 31, 2022, Exelon has not issued any shares of common stock under the ATM program and has not entered into any forward sale agreements.
Pursuant to the Separation Agreement between Exelon and Constellation Energy Corporation, Exelon made a cash payment of $1.75 billion to Generation on January 31, 2022. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information on the separation.
The following table presents the incremental collateral that each Utility Registrant would have been required to provide in the event each Utility Registrant lost its investment grade credit rating at December 31, 2022 and available credit facility capacity prior to any incremental collateral at December 31, 2022:
PJM Credit Policy Collateral
Other Incremental Collateral Required(a)
Available Credit Facility Capacity Prior to Any Incremental Collateral
ComEd$31 $— $568 
PECO71 361 
BGE119 191 
Pepco— 
DPL15 185 
ACE— 300 
__________
(a)Represents incremental collateral related to natural gas procurement contracts.

Seasonality Impacts on Delivery Volumes
The Utility Registrants' electric distribution volumes are generally higher during the summer and winter months when temperature extremes create demand for either summer cooling or winter heating. For PECO, BGE, and DPL, natural gas distribution volumes are generally higher during the winter months when cold temperatures create demand for winter heating.
ComEd, BGE, Pepco, DPL Maryland, and ACE have electric distribution decoupling mechanisms and BGE has a natural gas decoupling mechanism that eliminate the favorable and unfavorable impacts of weather and customer usage patterns on electric distribution and natural gas delivery volumes. As a result, ComEd's, BGE's, Pepco's, DPL Maryland's, and ACE's electric distribution revenues and BGE's natural gas distribution revenues are not materially impacted by delivery volumes. PECO's and DPL Delaware's electric distribution revenues and natural gas distribution revenues are impacted by delivery volumes.
Electric and Natural Gas Distribution Services
The Utility Registrants are allowed to recover reasonable costs and fair and prudent capital expenditures associated with electric and natural gas distribution services and earn a return on those capital expenditures, subject to commission approval. ComEd recovers costs through a performance-based rate formula. ComEd is required to file an update to the performance-based rate formula on an annual basis. On September 15, 2021, Illinois passed CEJA, which contains requirements for ComEd to transition away from the performance-based rate formula by the end of 2022 and would allow for the submission of either a general rate or multi-year rate plan. On February 3, 2022, the ICC approved a tariff that establishes the process under which ComEd will reconcile its 2022 and 2023 rate year revenue requirements with actual costs. ComEd filed a petition with the ICC seeking approval of a multi-year rate plan (MRP) for 2024-2027 on January 17, 2023. PECO's and DPL's electric and gas distribution costs and ACE's electric distribution costs have generally been recovered through rate case proceedings, with PECO utilizing a fully projected future test year while DPL and ACE utilize a historical test year. BGE’s electric and gas distribution costs and Pepco’s and DPL Maryland's electric distribution costs are currently recovered through multi-year rate case proceedings, as the MDPSC and the DCPSC allow utilities to file multi-year rate plans. In certain instances, the Utility Registrants use specific recovery mechanisms as approved by their respective regulatory agencies. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
ComEd, Pepco, DPL and ACE customers have the choice to purchase electricity, and PECO and BGE customers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. DPL customers, with the exception of certain commercial and industrial customers, do not have the
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choice to purchase natural gas from competitive natural gas suppliers. The Utility Registrants remain the distribution service providers for all customers and are obligated to deliver electricity and natural gas to customers in their respective service territories while charging a regulated rate for distribution service. In addition, the Utility Registrants also retain significant default service obligations to provide electricity to certain groups of customers in their respective service areas who do not choose a competitive electric generation supplier. PECO, BGE, and DPL also retain significant default service obligations to provide natural gas to certain groups of customers in their respective service areas who do not choose a competitive natural gas supplier.
For customers that choose to purchase electric generation or natural gas from competitive suppliers, the Utility Registrants act as the billing agent and therefore do not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from a Utility Registrant, the Utility Registrants are permitted to recover the electricity and natural gas procurement costs from customers without mark-up or with a slight mark-up and therefore record the amounts in Operating revenues and Purchased power and fuel expense. As a result, fluctuations in electricity or natural gas sales and procurement costs have no significant impact on the Utility Registrants’ Net income.
See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Results of Operations and Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding electric and natural gas distribution services.
Procurement of Electricity and Natural Gas
Exelon does not generate the electricity it delivers. The Utility Registrants' electric supply for its customers is primarily procured through contracts as directed by their respective state laws and regulatory commission actions. The Utility Registrants procure electricity supply from various approved bidders or from purchases on the PJM operated markets.
PECO's, BGE’s, and DPL's natural gas supplies are purchased from a number of suppliers for terms that currently do not exceed three years. PECO, BGE, and DPL each have annual firm transportation contracts of 443,000 mmcf, 268,000 mmcf, and 44,000 mmcf, respectively, for delivery of gas. To supplement gas transportation and supply at times of heavy winter demands and in the event of temporary emergencies, PECO, BGE, and DPL have available storage capacity from the following sources:
Peak Natural Gas Sources (in mmcf)
LNG FacilityPropane-Air Plant
Underground Storage Service Agreements(a)
PECO1,200 150 19,400 
BGE1,056 550 22,000 
DPL250 N/A3,900 
___________
(a)Natural gas from underground storage represents approximately 27%, 42%, and 33% of PECO's, BGE’s, and DPL's 2022-2023 heating season planned supplies, respectively.
PECO, BGE, and DPL have long-term interstate pipeline contracts and also participate in the interstate markets by releasing pipeline capacity or bundling pipeline capacity with gas for off-system sales. Off-system gas sales are low-margin direct sales of gas to wholesale suppliers of natural gas. Earnings from these activities are shared between the utilities and customers. PECO, BGE, and DPL make these sales as part of a program to balance its supply and cost of natural gas. The off-system gas sales are not material to PECO, BGE, and DPL.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK, Commodity Price Risk (All Registrants), for additional information regarding Utility Registrants' contracts to procure electric supply and natural gas.
Energy Efficiency Programs
The Utility Registrants are generally allowed to recover costs associated with the energy efficiency and demand response programs they offer. Each commission approved program seeks to meet mandated electric consumption reduction targets and implement demand response measures to reduce peak demand. The programs are designed to meet standards required by each respective regulatory agency.
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ComEd, with limited exceptions, earns a return on its energy efficiency costs through a regulatory asset. BGE, Pepco Maryland, DPL Maryland, and ACE earn a return on most of their energy efficiency and demand response program costs through a regulatory asset. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Capital ExpendituresInvestment
Generation’s business isThe Utility Registrants' businesses are capital intensive and requiresrequire significant investments, primarily in nuclearelectric transmission and distribution and natural gas transportation and distribution facilities, to ensure the adequate capacity, reliability, and efficiency of their systems. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Liquidity and Capital Resources, for additional information regarding projected 2023 capital expenditures.
Transmission Services
Under FERC’s open access transmission policy, the Utility Registrants, as owners of transmission facilities, are required to provide open access to their transmission facilities under filed tariffs at cost-based rates approved by FERC. The Utility Registrants and their affiliates are required to comply with FERC’s Standards of Conduct regulation governing the communication of non-public transmission information between the transmission owner’s employees and wholesale merchant employees.
PJM is the regional grid operator and operates pursuant to FERC-approved tariffs. PJM is the transmission provider under, and the administrator of, the PJM Tariff. PJM operates the PJM energy, capacity, and other markets, and, through central dispatch, controls the day-to-day operations of the bulk power system for the region. The Utility Registrants are members of PJM and provide regional transmission service pursuant to the PJM Tariff. The Utility Registrants and the other transmission owners in PJM have turned over control of certain of their transmission facilities to PJM, and their transmission systems are under the dispatch control of PJM. Under the PJM Tariff, transmission service is provided on a region-wide, open-access basis using the transmission facilities of the PJM transmission owners.
The Utility Registrants' transmission rates are established based on a FERC approved formula as shown below:
Approval Date
ComEdJanuary 2008
PECODecember 2019
BGEApril 2006
PepcoApril 2006
DPLApril 2006
ACEApril 2006
Exelon’s Strategy and Outlook
Following the separation on February 1, 2022, Exelon is now a Distribution and Transmission company, focused on delivering electricity and natural gas service to our customers and communities. Exelon's businesses remain focused on maintaining industry leading operational excellence, meeting or exceeding their financial commitments, ensuring timely recovery on investments to enable customer benefits, supporting clean energy policies including those that advance our jurisdictions' clean energy targets, and continued commitment to corporate responsibility.
Exelon’s strategy is to improve reliability and operations, enhance the customer experience, and advance clean and affordable energy choices, while ensuring ratemaking mechanisms provide the utilities fair financial returns. The jurisdictions in which Exelon has operations have set some of the nation's leading clean energy targets and our strategy is to enable that future for all our stakeholders. The Utility Registrants invest in rate base that supports service to our customers and the community, including investments that sustain and improve reliability and resiliency and that enhance the service experience of our customers. The Utility Registrants make these investments prudently at a reasonable cost to customers. Exelon seeks to leverage its scale and expertise across the utilities platform through enhanced standardization and sharing of resources and best practices to achieve improved operational and financial results.
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Management continually evaluates growth opportunities aligned with Exelon’s businesses, assets, and markets, leveraging Exelon’s expertise in those areas and offering sustainable returns.
The Utility Registrants anticipate investing approximately $31 billion over the next four years in electric and natural gas infrastructure improvements and modernization projects, including smart grid technology, storm hardening, advanced reliability technologies, and transmission projects, which is projected to result in an increase to current rate base of approximately $18 billion by the end of 2026. These investments provide greater reliability, improved service for our customers, increased capacity to accommodate new technologies and support a cleaner grid, and a stable return for the company.
In August 2021, Exelon announced a Path to Clean goal to collectively reduce its operations-driven GHG emissions 50% by 2030 against a 2015 baseline and to reach net zero operations-driven GHG emissions by 2050, while supporting customers and communities in achieving their GHG reduction goals (Path to Clean). Exelon's quantitative goals include its Scope 1 and 2 GHG emissions, with the exception of Scope 2 emissions associated with system losses of electric power delivered to customers ("line losses"), and build upon Exelon's long-standing commitment to reducing our GHG emissions. Exelon's Path to Clean efforts extend beyond these quantitative goals to include efforts such as customer energy efficiency programs, which support reductions in customers' direct emissions and have the potential to reduce Exelon's Scope 3 emissions and Scope 2 line losses as well. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Climate Change for additional information.
Various market, financial, regulatory, legislative, and operational factors could affect Exelon's success in pursuing its strategies. Exelon continues to assess infrastructure, operational, policy, and legal solutions to these issues. See ITEM 1A. RISK FACTORS for additional information.
Employees
The Registrants strive to create a workplace culture that promotes and embodies diversity, inclusion, innovation, and safety for their employees. In order to provide the services and products that their customers expect, the Registrants aspire to create teams that reflect the diversity of the communities that the Registrants serve. Therefore, the Registrants take steps to attract highly qualified and diverse talent and seek to create hiring and promotion practices that are equitable and neutralize any bias, including unconscious bias. The Registrants provide growth opportunities, competitive compensation and benefits, and a variety of training and development programs. The Registrants are committed to helping employees grow their skills and careers largely through numerous training opportunities; mentorship programs; continuous feedback and development discussions; and evaluations. Employees are encouraged to thrive outside the workplace as well. The Registrants provide a full suite of wellness benefits targeted at supporting work-life balance, physical, mental and financial health, and industry-leading paid leave policies.
The Registrants typically conduct an employee engagement survey every other year to help identify organizational strengths and areas of opportunity for growth. The survey results are reviewed with senior management and the Exelon Board of Directors.
Diversity Metrics
The following tables show diversity metrics for all employees and management as of December 31, 2022.
EmployeesExelonComEdPECOBGEPHIPepcoDPLACE
Female(a)(b)(c)
5,300 1,535 752 786 1,270 329 139 109 
People of Color(b)(c)
7,519 2,575 990 1,170 1,803 865 203 145 
Aged <302,026 721 361 286 424 169 85 61 
Aged 30-5010,548 3,728 1,455 1,819 2,271 739 465 357 
Aged >506,489 1,907 1,070 1,061 1,466 442 341 203 
Total Employees(d)
19,063 6,356 2,886 3,166 4,161 1,350 891 621 

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Management(e)
ExelonComEdPECOBGEPHIPepcoDPLACE
Female(a)(b)(c)
961 235 139 122 206 51 13 21 
People of Color(b)(c)
1,086 331 134 166 276 116 32 22 
Aged <3029 — 
Aged 30-501,715 510 182 265 395 120 58 40 
Aged >501,286 363 190 163 276 61 57 40 
Within 10 years of retirement eligibility1,787 520 238 226 379 91 68 55 
Total Employees in Management(d)
3,030 880 381 432 677 181 117 82 
 __________
(a)The Registrants have a particular focus on creating an environment that attracts and retains women by enabling them to stay in the workforce, grow with the company, and move up the ranks.
(b)To effectuate Exelon's pay equity goals, Exelon conducts analysis on gender and racial pay equity.
(c)Information concerning women and people of color is based on self-disclosed information.
(d)Total employees represents the sum of the aged categories.
(e)Management is defined as executive/senior level officials and managers as well as all employees who have direct reports and/or supervisory responsibilities.
Turnover Rates
As turnover is inherent, management succession planning is performed and tracked for all executives and critical key manager positions. Management frequently reviews succession planning to ensure the Registrants are prepared when positions become available.
The table below shows the average turnover rate for all employees for the last three years of 2020 to 2022.
ExelonComEdPECOBGEPHIPepcoDPLACE
Retirement Age3.71 %4.09 %4.10 %3.48 %3.79 %3.74 %4.42 %3.88 %
Voluntary2.79 %2.22 %2.71 %1.76 %2.52 %2.81 %1.46 %1.84 %
Non-Voluntary0.81 %0.60 %1.10 %1.06 %1.02 %1.95 %0.47 %0.68 %
Collective Bargaining Agreements
Approximately 44% of Exelon’s employees participate in CBAs. The following table presents employee information, including information about CBAs, as of December 31, 2022.
Total Employees Covered by CBAsNumber of CBAs
CBAs New and Renewed in 2022(a)
Total Employees Under CBAs
New and Renewed
in 2022
Exelon8,379 10 906 
ComEd3,477 — — 
PECO1,368 — — 
BGE1,414 — — 
PHI2,113 906 
Pepco890 890 
DPL621 — — 
ACE401 16 
 __________
(a)Does not include CBAs that were extended in 2022 while negotiations are ongoing for renewal.
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Environmental Matters and Regulation
The Registrants are subject to comprehensive and complex environmental legislation and regulation at the federal, state, and local levels, including requirements relating to climate change, air and water quality, solid and hazardous waste, and impacts on species and habitats.
The Exelon Board of Directors is responsible for overseeing the management of environmental matters. Exelon has a management team to address environmental compliance and strategy, including the CEO; the Senior Vice President and Chief Strategy and Sustainability Officer; as well as senior management of the Utility Registrants. Performance of those individuals directly involved in environmental compliance and strategy is reviewed and affects compensation as part of the annual individual performance review process. The Audit and Risk Committee oversees compliance with environmental laws and regulations, including environmental risks related to Exelon's operations and facilities, as well as SEC disclosures related to environmental matters. Exelon's Corporate Governance Committee has the authority to oversee Exelon’s climate change and sustainability policies and programs, as discussed in further detail below. The respective Boards of the Utility Registrants oversee environmental issues related to these companies. The Exelon Board of Directors has general oversight responsibilities for ESG matters, including strategies and efforts to protect and improve the quality of the environment.
Climate Change
As detailed below, the Registrants face climate change mitigation and transition risks as well as adaptation risks. Mitigation and transition risks include changes to the energy systems as a result of new technologies, changing customer expectations and/or voluntary GHG goals, as well as local, state or federal regulatory requirements intended to reduce GHG emissions. Adaptation risk refers to risks to the Registrants' facilities or operations that may result from changes to the physical climate and environment, such as changes to temperature, weather patterns and sea level.
Climate Change Mitigation and Transition
The Registrants support comprehensive federal climate legislation that addresses the urgent need to substantially reduce national GHG emissions while providing appropriate protections for consumers, businesses, and the economy. In the absence of comprehensive federal climate legislation, Exelon supports the EPA moving forward with meaningful regulation of GHG emissions under the Clean Air Act.
The Registrants currently are subject to, and may become subject to additional, federal and/or state legislation and/or regulations addressing GHG emissions. GHG emission sources associated with the Registrants include sulfur hexafluoride (SF6) leakage from electric transmission and distribution operations, refrigerant leakage from chilling and cooling equipment, and fossil fuel combustion in motor vehicles. In addition, PECO, BGE, and DPL, as distributors of natural gas are regulated with respect to reporting of natural gas (methane) leakage on the natural gas systems and consumer use of such natural gas.
Since its inception, Exelon has positioned itself as a leader in climate change mitigation. Exelon uses definitions and protocols provided by the World Resources Institute for its GHG inventory. In 2021, Exelon's Scope 1 and 2 GHG emissions, as revised following its separation from Constellation, were just over 5.7 million metric tons carbon dioxide equivalent using the World Resources Institute Corporate Standard Market-based accounting. Of these emissions, 0.5 million metric tons are considered to be operations-driven and in more direct control of our employees and processes. The majority of these operations-driven emissions are fugitive emissions from the gas delivery systems of Registrants PECO, BGE, and DPL. The remaining 5.2 million metric tons, approximately 91%, are the indirect emissions associated with the operation and use of the electric distribution and transmission system and primarily consists of losses resulting from the Utility Registrant's delivery of electricity to their customers (line losses). These emissions are driven primarily by customer demand for electricity and the mix of generation assets supplying energy to the electric grid. The Registrants do not own generation and must comply with applicable legal and regulatory requirements governing procurement of electricity for delivery to retail customers and use of the system to support other transmission transactions. However, the Registrants do engage in efforts that help to reduce these emissions, including customer programs to drive customer energy efficiency, help to manage peak demands, and enable distributed solar generation.
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In August 2021, Exelon announced a Path to Clean goal to collectively reduce their operations-driven GHG emissions 50% by 2030 against a 2015 baseline, and to reach net zero operations-driven GHG emissions by 2050, while also supporting customers and communities to achieve their clean energy and emissions goals. Exelon’s quantitative goals include its Scope 1 and 2 GHG emissions, with the exception of Scope 2 line losses, and builds upon Exelon's long-standing commitment to reducing our GHG emissions. Exelon's activities in support of the Path to Clean goal will include efficiency and clean electricity for operations, vehicle fleet electrification, equipment and processes to reduce sulfur hexafluoride (SF6) leakage, investments in natural gas infrastructure to minimize methane leaks and increase safety and reliability, and investment and collaboration to develop new technologies. Beyond 2030, Exelon recognizes that technology advancement and continued policy support will be needed to ensure achievement of Net-Zero by 2050. Exelon is laying the groundwork by partnering with national labs, universities and research consortia to research, develop, and pilot clean technologies that will be needed, as well as working with our states, jurisdictions and policy makers to understand the scope and scale of energy transformation, and needed policies and incentives, that will be needed to reach local ambitions for GHG emissions reductions. The Utility Registrants are also supporting customers and communities to achieve their clean energy and emissions goals through significant energy efficiency programs. During 2023 - 2026, estimated customer program energy efficiency investments across the Utility Registrants total $3.5 billion. These programs enable customer savings through home energy audits, lighting discounts, appliance recycling, home improvement rebates, equipment upgrade incentives and innovative programs like smart thermostats and combined heat and power programs.
As an energy delivery company, Exelon can play a key role in lowering GHG emissions across much of the economy in its service territories. In connecting end users of energy to electric and gas supply, Exelon can leverage its assets and customer interface to encourage efficient use of lower emitting resources as they become available. Electrification, where feasible for transportation, buildings, and industry coupled with simultaneous decarbonization of electric generation, can be a key lever for emissions reductions. To support this transition, Exelon is advocating for public policy supportive of vehicle electrification, investing in enabling infrastructure and technology, and supporting customer education and adoption. In addition, the Utility Registrants have a goal to electrify 30% of their own vehicle fleet by 2025, increasing to 50% by 2030. Clean fuels and other emerging technologies can also support the transition, lessen the strain on electric system expansion, and support energy system resiliency. Exelon, and its registrants PECO, BGE, and DPL that own gas distribution assets, are also continuing to explore these other decarbonization opportunities, supporting pilots of emerging energy technologies and clean fuels to support both operational and customer-driven emissions reductions. The energy transition may present challenges for the Utility Registrants and their service territories. Exelon believes its market and business model could be significantly affected by the transition of the energy system, such as through an increased electric load and decreased demand for natural gas, potentially accompanied by changes in technology, customer expectations, and/or regulatory structures. See ITEM 1A. RISK FACTORS. The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry.
Climate Change Adaptation
The Registrants' facilities and operations are subject to the impacts of global climate change. Long-term shifts in climactic patterns, such as sustained higher temperatures and sea level rise, may present challenges for the Registrants and their service territories. Exelon believes its operations could be significantly affected by the physical risks of climate change. See ITEM 1A. RISK FACTORS for additional information related to the Registrants' risks associated with climate change.
The Registrants' assets undergo seasonal readiness efforts to ensure they are ready for the weather projections of the summer and winter months. The Registrants consider and review national climate assessments to inform their planning. Each of the Utility Registrants also has well established system recovery plans and is investing in its systems to install advanced equipment and reinforce the local electric system, making it more weather resistant and less vulnerable to anticipated storm damage.
International Climate Change Agreements. At the international level, the United States is a party to the United Nations Framework Convention on Climate Change (UNFCCC). The Parties to the UNFCCC adopted the Paris Agreement at the 21st session of the UNFCCC Conference of the Parties (COP 21) on December 12, 2015. Under the Agreement, which became effective on November 4, 2016, the parties committed to try to limit the global average temperature increase and to develop national GHG reduction commitments. On November 4, 2020, the United States formally withdrew from the Paris Agreement, but on January 20, 2021, President Biden
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accepted the Agreement, which resulted in the United States’ formal re-entry on February 19, 2021. The United States has set an economy-wide target of reducing its net GHG emissions by 50-52% below 2005 levels by 2030. On November 11, 2022 at the UNFCCC Conference of the Parties (COP 27), President Biden recommitted the U.S. to these goals and detailed the significant domestic climate actions the U.S. had taken to spur a new era of clean American manufacturing, enhance energy security, and drive down the costs of clean energy for consumers in the U.S. and around the world.
Federal Climate Change Legislation and Regulation.On August 16, 2022, President Biden signed the Inflation Reduction Act (IRA), which aims to reduce U.S. carbon emissions and promote economic development through investments in clean and renewable energy projects. The consumer-facing clean energy tax credits created or expanded by the IRA are intended to drive rapid adoption of energy efficiency, electric transportation, and solar energy which would require Exelon's utilities to expand and modernize infrastructure, systems and services to integrate and optimize these resources.
Regulation of GHGs from Power Plants under the Clean Air Act.TheEPA’s 2015 Clean Power Plan (CPP) established regulations addressing carbon dioxide emissions from existing fossil-fired power plants under Clean Air Act Section 111(d). The CPP’s carbon pollution limits could be met through changes to the electric generation system, including shifting generation from higher-emitting units to lower- or zero-emitting units, as well as the development of new or expanded zero-emissions generation. In July 2019, the EPA published its final Affordable Clean Energy rule, which repealed the CPP and replaced it with less stringent emissions guidelines for existing fossil-fired power plants based on heat rate improvement measures that could be achieved within the fence line of individual plants. Exelon, together with a coalition of other electric utilities, filed a lawsuit in the U.S. Court of Appeals for the D.C. Circuit, challenging the rescission of the Clean Power Plan and enactment of the Affordable Clean Energy rule as unlawful. On January 19, 2021, the D.C. Circuit held the Affordable Clean Energy Rule (including its rescission of the Clean Power Plan) to be unlawful, vacated the rule, and remanded it to the EPA. The Supreme Court granted certiorari to examine the extent of the EPA's authority to regulate GHGs from power plants and, on June 30, 2022, reversed and remanded the D.C. Circuit's decision. The Supreme Court ruled that the EPA's use of generation shifting for development of standards in the Clean Power Plan went beyond Congress' intended authority under the Clean Air Act. The EPA has indicated that it will promulgate new GHG limits for existing power plants. Increased regulation of GHG emissions from power plants could increase the cost of electricity delivered or sold by the Registrants. As of February 1, 2022, following its separation from Constellation, Exelon no longer owns electric generation plants.
State Climate Change Legislation and Regulation. A number of states in which the Registrants operate have state and regional programs to reduce GHG emissions and renewable and other portfolio standards, which impact the power sector. See discussion below for additional information on renewable and other portfolio standards.
Certain northeast and mid-Atlantic states (Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia) currently participate in the RGGI. The program requires most fossil fuel-fired power plant owners and operators in the region to hold allowances, purchased at auction, for each ton of CO2 emissions. Non-emitting resources do not have to purchase or hold these allowances. Pennsylvania joined RGGI in April 2022.
Broader state programs impact other sectors as well, such as the District of Columbia's Clean Energy DC Omnibus Act and cross-sector GHG reduction plans, which resulted in recent requirements for Pepco to develop 5-year and 30-year decarbonization programs and strategies. Maryland expects to meet and exceed the mandate set in the Greenhouse Gas Emissions Reduction Act to reduce statewide GHG emissions 40% (from 2006 levels) by 2030, and the state’s Climate Solutions Now Act of 2022 further updates requirements with a proposal to reduce emissions 60% (from 2006 levels) by 2031. New Jersey accelerated its goals through Executive Order 274, which establishes an interim goal of 50% reductions below 2006 levels by 2030 and affirms its goal of achieving 80% reductions by 2050 and includes programs to drive greater amounts of electrified transportation. Illinois’ climate bill, CEJA, establishes decarbonization requirements for the state to transition to 100% clean energy by 2050 and supports programs to improve energy efficiency, manage energy demand, attract clean energy investment and accelerate job creation. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on CEJA.
The Registrants cannot predict the nature of future regulations or how such regulations might impact future financial statements.
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Renewable and Clean Energy Standards. Each of the states where Exelon operates have adopted some form of renewable or clean energy procurement requirement. These standards impose varying levels of mandates for procurement of renewable or clean electricity (the definition of which varies by state) and/or energy efficiency. These are generally expressed as a percentage of annual electric load, often increasing by year. The Utility Registrants comply with these various requirements through acquiring sufficient bundled or unbundled credits such as RECs, CMCs, or ZECs, or paying an alternative compliance payment, and/or a combination of these compliance alternatives. The Utility Registrants are permitted to recover from retail customers the costs of complying with their state RPS requirements, including the procurement of RECs or other alternative energy resources. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Other Environmental Regulation
Water Quality
Under the federal Clean Water Act, NPDES permits for discharges into waterways are required to be obtained from the EPA or from the state environmental agency to which the permit program has been delegated, and permits must be renewed periodically. Certain of Exelon's facilities discharge water into waterways and are therefore subject to these regulations and operate under NPDES permits.
Under Clean Water Act Section 404 and state laws and regulations, the Registrants may be required to obtain permits for projects involving dredge or fill activities in waters of the United States.
Where Registrants’ facilities are required to secure a federal license or permit for activities that may result in a discharge to covered waters, they may be required to obtain a state water quality certification under Clean Water Act section 401.
Solid and Hazardous Waste and Environmental Remediation
CERCLA provides for response and removal actions coordinated by the EPA in the event of threatened releases of hazardous substances and authorizes the EPA either to clean up sites at which hazardous substances have created actual or potential environmental hazards or to order persons responsible for the situation to do so. Under CERCLA, generators and transporters of hazardous substances, as well as past and present owners and operators of hazardous waste sites, are strictly, jointly and severally liable for the cleanup costs of hazardous waste at sites, many of which are listed by the EPA on the National Priorities List (NPL). These PRPs can be ordered to perform a cleanup, can be sued for costs associated with an EPA-directed cleanup, may voluntarily settle with the EPA concerning their liability for cleanup costs, or may voluntarily begin a site investigation and site remediation under state oversight. Most states have also enacted statutes that contain provisions substantially similar to CERCLA. Such statutes apply in many states where the Registrants currently own or operate, or previously owned or operated, facilities, including Delaware, Illinois, Maryland, New Jersey, and Pennsylvania and the District of Columbia. In addition, RCRA governs treatment, storage and disposal of solid and hazardous wastes and cleanup of sites where such activities were conducted.
The Registrants’ operations have in the past, and may in the future, require substantial expenditures in order to comply with these Federal and state environmental laws. Under these laws, the Registrants may be liable for the costs of remediating environmental contamination of property now or formerly owned by them and of property contaminated by hazardous substances generated by them. The Registrants own or lease a number of real estate parcels, including parcels on which their operations or the operations of others may have resulted in contamination by substances that are considered hazardous under environmental laws. The Registrants and their subsidiaries are, or could become in the future, parties to proceedings initiated by the EPA, state agencies, and/or other responsible parties under CERCLA and RCRA or similar state laws with respect to a number of sites or may undertake to investigate and remediate sites for which they may be subject to enforcement actions by an agency or third-party.
ComEd’s and PECO’s environmental liabilities primarily arise from contamination at former MGP sites, which were operated by ComEd's and PECO's predecessor companies. ComEd, pursuant to an ICC order, and PECO, pursuant to settlements of natural gas distribution rate cases with the PAPUC, have an on-going process to recover certain environmental remediation costs of the MGP sites through a provision within customer rates. BGE, Pepco, DPL, and ACE do not have material contingent liabilities relating to MGP sites. The amount to be
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expended in 2023 for compliance with environmental remediation related to contamination at former MGP sites and other gas purification sites is estimated to be approximately $52 million which consists primarily of $44 million at ComEd.
As of December 31, 2022, the Registrants have established appropriate contingent liabilities for environmental remediation requirements. In addition, the Registrants may be required to make significant additional expenditures not presently determinable for other environmental remediation costs.
See Note 3 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information regarding the Registrants’ environmental matters, remediation efforts, and related impacts to the Registrants’ Consolidated Financial Statements.
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Information about our Executive Officers as of February 14, 2023
Exelon
NameAgePositionPeriod
Butler, Calvin G. Jr.53 President and Chief Executive Officer, Exelon2022 - Present
Chief Operating Officer, Exelon2021 - 2022
Senior Executive Vice President, Exelon2019 - 2022
Chief Executive Officer, Exelon Utilities2019 - 2022
Chief Executive Officer, BGE2014 - 2019
Jones, Jeanne43 Executive Vice President and Chief Financial Officer, Exelon2022 - Present
Senior Vice President, Corporate Finance, Exelon2021 - 2022
Senior Vice President and Chief Financial Officer, ComEd2018 - 2021
Glockner, David62 Executive Vice President, Compliance, Audit and Risk, Exelon2020 - Present
Chief Compliance Officer, Citadel LLC2017 - 2020
Littleton, Gayle E.50 Executive Vice President, General Counsel, Exelon2020 - Present
Partner, Jenner & Block LLP2015 - 2020
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Trpik, Joseph R.53 Senior Vice President and Corporate Controller, Exelon2022 - Present
Interim Senior Vice President & CFO, ComEd2021 - 2022
Senior Vice President & CFO, Exelon Utilities2018 - 2021
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ComEd
NameAgePositionPeriod
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Donnelly, Terence R.62 President and Chief Operating Officer, ComEd2018 - Present
Graham, Elisabeth J.44 Senior Vice President, Chief Financial Officer & Treasurer, ComEd2022 - Present
Treasurer, Exelon2018 - 2022
Rippie, E. Glenn62 Senior Vice President and General Counsel, ComEd2022 - Present
Senior Vice President and Deputy General Counsel, Energy Regulation, Exelon2022 - Present
Partner, Jenner & Block LLP2019 - 2021
Partner and Chief Financial Officer, Rooney, Rippie & Ratnaswamy, LLP2010 - 2019
Washington, Melissa53 Senior Vice President, Customer Operations, ComEd2021 - Present
Senior Vice President, Governmental and External Affairs, ComEd2019 - 2021
Vice President, Governmental and External Affairs, ComEd2019 - 2019
Vice President, External Affairs and Large Customer Services, ComEd2016 - 2019
Binswanger, Lewis63 Senior Vice President, Governmental, Regulatory and External Affairs, ComEd2022 - Present
Vice President, External Affairs, Nicor Gas2013 - 2022
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PECO
NameAgePositionPeriod
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Levine, Nicole46 Senior Vice President and Chief Operations Officer, PECO2022 - Present
Vice President, Electrical Operations, PECO2018 - 2022
Humphrey, Marissa43 Senior Vice President, Chief Financial Officer and Treasurer, PECO2022 - Present
Vice President, Regulatory Policy and Strategy (NJ/DE), PHI, DPL, and ACE2021 - 2022
Vice President, Finance, Exelon Utilities2019 - 2020
Vice President, Financial Planning and Analysis, PHI, Pepco, DPL, and ACE2016 - 2019
Murphy, Elizabeth A.63 Senior Vice President, Governmental, Regulatory and External Affairs, PECO2016 - Present
Williamson, Olufunmilayo44 Senior Vice President, Customer Operations, PECO2021 - Present
Senior Vice President, Chief Commercial Risk Officer, Exelon2017 - 2020
Gay, Anthony57 Vice President and General Counsel, PECO2019 - Present
Vice President, Governmental and External Affairs, PECO2016 - 2019
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BGE
NameAgePositionPeriod
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Dickens, Derrick58 Senior Vice President and Chief Operating Officer, BGE2021 - Present
Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2020 - 2021
Vice President, Technical Services, BGE2016 - 2020
Vahos, David M.50 Senior Vice President, Chief Financial Officer and Treasurer, BGE2016 - Present
Núñez, Alexander G. 51 Senior Vice President, Governmental, Regulatory and External Affairs, BGE2021 - Present
Senior Vice President, Regulatory Affairs and Strategy, BGE2020 - 2021
Senior Vice President, Regulatory and External Affairs, BGE2016 - 2020
Galambos, Denise60 Senior Vice President, Customer Operations, BGE2021 - Present
Vice President, Utility Oversight, Exelon Utilities2020 - 2021
Vice President, Human Resources, BGE2018 - 2020
Ralph, David56 Vice President and General Counsel, BGE2021 - Present
Associate General Counsel, BGE2019 - 2021
Assistant General Counsel, Exelon2017 - 2019
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PHI, Pepco, DPL, and ACE
NameAgePositionPeriod
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Olivier, Tamla50 Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Customer Operations, BGE2020 - 2021
Senior Vice President, Constellation NewEnergy, Inc.2016 - 2020
Barnett, Phillip S.59 Senior Vice President, Chief Financial Officer and Treasurer, PHI, Pepco, DPL, and ACE2018 - Present
Oddoye, Rodney46 Senior Vice President, Governmental, Regulatory and External Affairs, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Governmental and External Affairs, BGE2020 - 2021
Vice President, Customer Operations, BGE2018 - 2020
Bancroft, Anne56 Vice President and General Counsel, PHI, Pepco, DPL, and ACE2021 - Present
Associate General Counsel, Exelon2017 - 2021
Bell-Izzard, Morlon57 Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2021 - Present
Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2019 - 2021
Director, Utility Performance Assessment, Exelon2016 - 2019
ITEM 1A.RISK FACTORS
Each of the Registrants operates in a complex market and regulatory environment that involves significant risks, many of which are beyond that Registrant’s direct control. Such risks, which could negatively affect one or more of the Registrants’ consolidated financial statements, fall primarily under the categories below:
Risks related to market and financial factors primarily include:
the demand for electricity, reliability of service, and affordability in the markets where the Utility Registrants conduct their business,
the ability of the Utility Registrants to operate their respective transmission and distribution assets, their ability to access capital markets, and the impacts on their results of operations, financial condition or liquidity/cash flows due to public health crises, epidemics or pandemics, such as COVID-19, and
emerging technologies and business models, including those related to climate change mitigation and transition to a low carbon economy.
Risks related to legislative, regulatory, and legal factors primarily include changes to, and compliance with, the laws and regulations that govern:
utility regulatory business models,
environmental and climate policy, and
tax policy.
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Risks related to operational factors primarily include:
changes in the global climate could produce extreme weather events, which could put the Registrant’s facilities at risk, and such changes could also affect the levels and patterns of demand for energy and related services,
the ability of the Utility Registrants to maintain the reliability, resiliency, and safety of their energy delivery systems, which could affect their ability to deliver energy to their customers and affect their operating costs, and
physical and cyber security risks for the Utility Registrants as the owner-operators of transmission and distribution facilities.
Risks related to the separation primarilyinclude:
challenges to achieving the benefits of separation and
performance by Exelon and Constellation under the transaction agreements, including indemnification responsibilities.
There may be further risks and uncertainties that are not presently known or that are not currently believed to be material that could negatively affect the Registrants' consolidated financial statements in the future.
Risks Related to Market and Financial Factors
The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry (All Registrants).
Advancements in power generation technology, including commercial and residential solar generation installations and commercial micro turbine installations, are improving the cost-effectiveness of customer self-supply of electricity. Improvements in energy storage technology, including batteries and fuel cells, could also better position customers to meet their around-the-clock electricity requirements. Improvements in energy efficiency of lighting, appliances, equipment and building materials will also affect energy consumption by customers. Changes in power generation, storage, and use technologies could have significant effects on customer behaviors and their energy consumption.
These developments could affect levels of customer-owned generation, customer expectations, and current business models and make portions of the Utility Registrants' transmission and/or distribution facilities uneconomic prior to the end of their useful lives. Increasing pressure from both the private and public sectors to take actions to mitigate climate change could also push the speed and nature of this transition. These factors could affect the Registrants’ consolidated financial statements through, among other things, increased operating and maintenance expenses, increased capital expenditures, and potential asset impairment charges or accelerated depreciation over shortened remaining asset useful lives.
Market performance and other factors could decrease the value of employee benefit plan assets and could increase the related employee benefit plan obligations, which then could require significant additional funding (All Registrants).
Disruptions in the capital markets and their actual or perceived effects on particular businesses and the greater economy could adversely affect the value of the investments held within Exelon’s employee benefit plan trusts. The asset values are subject to market fluctuations and will yield uncertain returns, which could fall below Exelon's projected return rates. A decline in the market value of the pension and OPEB plan assets would increase the funding requirements associated with Exelon’s pension and OPEB plan obligations. Additionally, Exelon’s pension and OPEB plan liabilities are sensitive to changes in interest rates. As interest rates decrease, the liabilities increase, potentially increasing benefit costs and funding requirements. Changes in demographics, including increased numbers of retirements or changes in life expectancy assumptions or changes to Social Security or Medicare eligibility requirements could also increase the costs and funding requirements of the obligations related to the pension and OPEB plans. See Note 14Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information.
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The Registrants could be negatively affected by unstable capital and credit markets (All Registrants).
The Registrants rely on the capital markets, particularly for publicly offered debt, as well as the banking and commercial paper markets, to meet their financial commitments and short-term liquidity needs. Disruptions in the capital and credit markets in the United States or abroad could negatively affect the Registrants’ ability to access the capital markets or draw on their respective bank revolving credit facilities. The banks may not be able to meet their funding commitments to the Registrants if they experience shortages of capital and liquidity or if they experience excessive volumes of borrowing requests within a short period of time. The inability to access capital markets or credit facilities, and longer-term disruptions in the capital and credit markets because of uncertainty, changing or increased regulation, reduced alternatives, or failures of significant financial institutions could result in the deferral of discretionary capital expenditures, or require a reduction in dividend payments or other discretionary uses of cash. In addition, the Registrants have exposure to worldwide financial markets, including Europe, Canada, and Asia. Disruptions in these markets could reduce or restrict the Registrants’ ability to secure sufficient liquidity or secure liquidity at reasonable terms. As of December 31, 2022, approximately 23%, 10%, and 16% of the Registrants’ available credit facilities were with European, Canadian, and Asian banks, respectively. Additionally, higher interest rates may put pressure on the Registrants’ overall liquidity profile, financial health and impact financial results. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the credit facilities.
If any of the Registrants were to experience a downgrade in its credit ratings to below investment grade or otherwise fail to satisfy the credit standards in its agreements with its counterparties or regulatory financial requirements, it would be required to provide significant amounts of collateral that could affect its liquidity and could experience higher borrowing costs (All Registrants).
The Utility Registrants' operating agreements with PJM and PECO's, BGE's, and DPL's natural gas procurement contracts contain collateral provisions that are affected by their credit rating and market prices. If certain wholesale market conditions were to exist and the Utility Registrants were to lose their investment grade credit ratings (based on their senior unsecured debt ratings), they would be required to provide collateral in the forms of letters of credit or cash, which could have a material adverse effect upon their remaining sources of liquidity. PJM collateral posting requirements will generally increase as market prices rise and decrease as market prices fall. Collateral posting requirements for PECO, BGE, and DPL, with respect to their natural gas supply contracts, will generally increase as forward market prices fall and decrease as forward market prices rise. If the Utility Registrants were downgraded, they could experience higher borrowing costs as a result of the downgrade. In addition, changes in ratings methodologies by the agencies could also have an adverse negative impact on the ratings of the Utility Registrants.
The Utility Registrants conduct their respective businesses and operate under governance models and other arrangements and procedures intended to assure that the Utility Registrants are treated as separate, independent companies, distinct from Exelon and other Exelon subsidiaries in order to isolate the Utility Registrants from Exelon and other Exelon subsidiaries in the event of financial difficulty at Exelon or another Exelon subsidiary. These measures (commonly referred to as “ring-fencing”) could help avoid or limit a downgrade in the credit ratings of the Utility Registrants in the event of a reduction in the credit rating of Exelon. Despite these ring-fencing measures, the credit ratings of the Utility Registrants could remain linked, to some degree, to the credit ratings of Exelon. Consequently, a reduction in the credit rating of Exelon could result in a reduction of the credit rating of some or all of the Utility Registrants. A reduction in the credit rating of a Utility Registrant could have a material adverse effect on the Utility Registrant.
See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources — Credit Matters and Cash Requirements — Security Ratings for additional information regarding the potential impacts of credit downgrades on the Registrants’ cash flows.
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The impacts of significant economic downturns or increases in customer rates, could lead to decreased volumes delivered and increased expense for uncollectible customer balances (All Registrants).
The impacts of significant economic downturns on the Utility Registrants' customers and the related regulatory limitations on residential service terminations for the Utility Registrants, could result in an increase in the number of uncollectible customer balances and related expense. Further, increases in customer rates, including those related to increases in purchased power and natural gas prices, could result in declines in customer usage and lower revenues for the Utility Registrants that do not have decoupling mechanisms.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK for additional information on the Registrants’ credit risk.
Public health crises, epidemics, or pandemics, such as COVID-19 could negatively impact the Registrants' results (All Registrants).
COVID-19 disrupted economic activity in the Registrants’ respective markets and negatively affected the Registrants’ results of operations in 2020. However, the financial impacts were not material for the years ended December 31, 2021 and December 31, 2022, other than the 2022 impairment disclosure within Note 11 — Asset Impairments. The Registrants cannot predict the full extent of the impacts of COVID-19, which will depend on, among other things, the rate, and public perceptions of the effectiveness, of vaccinations and rate of resumption of business activity. In addition, any future widespread pandemic or other local or global health issue could adversely affect our vendors, competitors or customers and customer demand as well as the Registrants’ ability to operate their transmission and distribution assets. See Item 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - Executive Overview for additional information.
The Registrants could be negatively affected by the impacts of weather (All Registrants).
Weather conditions directly influence the demand for electricity and natural gas and affect the price of energy commodities. Temperatures above normal levels in the summer tend to increase summer cooling electricity demand and revenues, and temperatures below normal levels in the winter tend to increase winter heating electricity and gas demand and revenues. Moderate temperatures adversely affect the usage of energy and resulting operating revenues at PECO and DPL Delaware. Due to revenue decoupling, operating revenues from electric distribution at ComEd, BGE, Pepco, DPL Maryland, and ACE are not affected by abnormal weather.
Extreme weather conditions or damage resulting from storms could stress the Utility Registrants' transmission and distribution systems, communication systems, and technology, resulting in increased maintenance and capital costs and limiting each company’s ability to meet peak customer demand. First and third quarter financial results, in particular, are substantially dependent on weather conditions, and could make period comparisons less relevant.
Climate change projections suggest increases to summer temperature and humidity trends, as well as more erratic precipitation and storm patterns over the long-term in the areas where the Utility Registrants have transmission and distribution assets. The frequency in which weather conditions emerge outside the current expected climate norms could contribute to weather-related impacts discussed above.
Long-lived assets, goodwill, and other assets could become impaired (All Registrants).
Long-lived assets represent the single largest asset class on the Registrants’ statements of financial position. In addition, Exelon, ComEd, and PHI have material goodwill balances.
The Registrants evaluate the recoverability of the carrying value of long-lived assets to be held and used whenever events or circumstances indicating a potential impairment exist. Factors such as, but not limited to, the business climate, including current and future energy and market conditions, environmental regulation, and the condition of assets are considered.
ComEd and PHI perform an assessment for possible impairment of their goodwill at least annually or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the
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reporting units below their carrying amount. Regulatory actions or changes in significant assumptions, including discount and growth rates, utility sector market performance and transactions, projected operating and capital cash flows for ComEd’s, Pepco’s, DPL’s, and ACE’s business, and the fair value of debt, could potentially result in future impairments of Exelon’s, ComEd's, and PHI’s goodwill.
An impairment would require the Registrants to reduce the carrying value of the long-lived asset or goodwill to fair value through a non-cash charge to expense by the amount of the impairment. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Critical Accounting Policies and Estimates, Note 7 — Property, Plant, and Equipment, Note 11 — Asset Impairments, and Note 12 — Intangible Assets of the Combined Notes to the Consolidated Financial Statements for additional information on long-lived asset impairments and goodwill impairments.
The Registrants could incur substantial costs in the event of non-performance by third-parties under indemnification agreements, or when the Registrants have guaranteed their performance (All Registrants).
The Registrants have entered into various agreements with counterparties that require those counterparties to reimburse a Registrant and hold it harmless against specified obligations and claims. To the extent that any of these counterparties are affected by deterioration in their creditworthiness or the agreements are otherwise determined to be unenforceable, the affected Registrant could be held responsible for the obligations. Each of the Utility Registrants has transferred its former generation business to a third party and in each case the transferee has agreed to assume certain obligations and to indemnify the applicable Utility Registrant for such obligations. In connection with the restructurings under which ComEd, PECO, and BGE transferred their generating assets to Constellation, Constellation assumed certain of ComEd’s, PECO’s, and BGE's rights and obligations with respect to their former generation businesses. Further, ComEd, PECO, and BGE have entered into agreements with third parties under which the third-party agreed to indemnify ComEd, PECO, or BGE for certain obligations related to their respective former generation businesses that have been assumed by Constellation as part of the restructuring. If the third-party, Constellation, or the transferee of Pepco's, DPL's, or ACE’s generation facilities experienced events that reduced its creditworthiness or the indemnity arrangement became unenforceable, the applicable Utility Registrant could be liable for any existing or future claims. In addition, the Utility Registrants have residual liability under certain laws in connection with their former generation facilities.
The Registrants have issued indemnities to third parties regarding environmental or other matters in connection with purchases and sales of assets, including several of the Utility Registrants in connection with Constellation's absorption of their former generating assets. The Registrants could incur substantial costs to fulfill their obligations under these indemnities.
The Registrants have issued guarantees of the performance of third parties, which obligate the Registrants to perform if the third parties do not perform. In the event of non-performance by those third parties, the Registrants could incur substantial cost to fulfill their obligations under these guarantees.
Risks Related to Legislative, Regulatory, and Legal Factors
The Registrants' businesses are highly regulated and electric and gas revenue and earnings could be negatively affected by legislative and/or regulatory actions (All Registrants).
Substantial aspects of the Registrants' businesses are subject to comprehensive Federal or state legislation and/or regulation.
The Utility Registrants' consolidated financial statements are heavily dependent on the ability of the Utility Registrants to recover their costs for the retail purchase, transmission, and distribution of power and natural gas to their customers.
Fundamental changes in regulations or adverse legislative actions affecting the Registrants’ businesses would require changes in their business planning models and operations. The Registrants cannot predict when or whether legislative or regulatory proposals could become law or what their effect would be on the Registrants.
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Changes in the Utility Registrants' respective terms and conditions of service, including their respective rates, along with adoption of new rate structures and constructs, or establishment of new rate cases, are subject to regulatory approval proceedings and/or negotiated settlements that are at times contentious, lengthy, and subject to appeal, which lead to uncertainty as to the ultimate result, and which could introduce time delays in effectuating rate changes (All Registrants).
The Utility Registrants are required to engage in regulatory approval proceedings as a part of the process of establishing the terms and rates for their respective services, adoption of new rate structures and constructs or establishment of new rate cases. These proceedings typically involve multiple parties, including governmental bodies and officials, consumer advocacy groups, and various consumers of energy, who have differing concerns but who have the common objective of limiting rate increases or even reducing rates. Decisions are subject to appeal, potentially leading to additional uncertainty associated with the approval proceedings. The potential duration of such proceedings creates a risk that rates ultimately approved by the applicable regulatory body may not be sufficient for a Utility Registrant to recover its costs by the time the rates become effective. Established rates are also subject to subsequent prudency reviews by state regulators, whereby various portions of rates could be adjusted, subject to refund or disallowed, including recovery mechanisms for costs associated with the procurement of electricity or gas, credit losses, MGP remediation, smart grid infrastructure, and energy generation assets. Generation’s estimatedefficiency and demand response programs. In certain instances, the Utility Registrants could agree to negotiated settlements related to various rate matters, customer initiatives, or franchise agreements. These settlements are subject to regulatory approval. The ultimate outcome and timing of regulatory rate proceedings have a significant effect on the ability of the Utility Registrants to recover their costs or earn an adequate return. See Note 3Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information.
The Registrants could be subject to higher costs and/or penalties related to mandatory reliability standards, including the likely exposure of the Utility Registrants to the results of PJM’s RTEP and NERC compliance requirements (All Registrants).
The Utility Registrants as users, owners, and operators of the bulk power transmission system are subject to mandatory reliability standards promulgated by NERC and enforced by FERC. The standards are based on the functions that need to be performed to ensure the bulk power system operates reliably and are guided by reliability and market interface principles. Compliance with or changes in the reliability standards could subject the Registrants to higher operating costs and/or increased capital expenditures. In addition, the ICC, PAPUC, MDPSC, DCPSC, DEPSC, and NJBPU impose certain distribution reliability standards on the Utility Registrants. If the Utility Registrants were found in non-compliance with the Federal and state mandatory reliability standards, they could be subject to remediation costs as well as sanctions, which could include substantial monetary penalties.
The Registrants could incur substantial costs to fulfill their obligations related to environmental and other matters (All Registrants).
The Registrants are subject to extensive environmental regulation and legislation by local, state, and Federal authorities. These laws and regulations affect the way the Registrants conduct their operations and make capital expenditures including how they handle air and water emissions, hazardous and solid waste, and activities affecting surface waters, groundwater, and aquatic and other species. Violations of these requirements could subject the Registrants to enforcement actions, capital expenditures to bring existing facilities into compliance, additional operating costs for 2018remediation and clean-up costs, civil penalties and exposure to third parties’ claims for alleged health or property damages, or operating restrictions to achieve compliance. In addition, the Registrants are approximately $2.1 billion,subject to liability under these laws for the remediation costs for environmental contamination of property now or formerly owned by the Registrants and of property contaminated by hazardous substances they generated or released. Remediation activities associated with MGP operations conducted by predecessor companies are one component of such costs. Also, the Registrants are currently involved in several proceedings relating to sites where hazardous substances have been deposited and could be subject to additional proceedings in the future. See ITEM 1. BUSINESS — Environmental Matters and Regulation for additional information.
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The Registrants could be negatively affected by federal and state RPS and/or energy conservation legislation, along with energy conservation by customers (All Registrants).
Changes to current state legislation or the development of Federal legislation that requires the use of clean, renewable, and alternate fuel sources could significantly impact the Utility Registrants, especially if timely cost recovery is not allowed.
Federal and state legislation mandating the implementation of energy conservation programs that require the implementation of new technologies, such as smart meters and smart grid, could increase capital expenditures and could significantly impact the Utility Registrants consolidated financial statements if timely cost recovery is not allowed. These energy conservation programs, regulated energy consumption reduction targets, and new energy consumption technologies could cause declines in customer energy consumption and lead to a decline in the Registrants' earnings, if timely recovery is not allowed. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Renewable and Clean Energy Standards and "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
The Registrants could be negatively affected by challenges to tax positions taken, tax law changes, and the inherent difficulty in quantifying potential tax effects of business decisions. (All Registrants).
The Registrants are required to make judgments to estimate their obligations to taxing authorities, which includes Generation's sharegeneral tax positions taken and associated reserves established. Tax obligations include, but are not limited to: income, real estate, sales and use, and employment-related taxes and ongoing appeal issues related to these tax matters. All tax estimates could be subject to challenge by the tax authorities. Additionally, earnings may be impacted due to changes in federal or local/state tax laws, and the inherent difficulty of estimating potential tax effects of ongoing business decisions. See Note 1Significant Accounting Policies and Note 13Income Taxes of the investmentCombined Notes to Consolidated Financial Statements for additional information.
Legal proceedings could result in nuclear fuela negative outcome, which the Registrants cannot predict (All Registrants).
The Registrants are involved in legal proceedings, claims, and litigation arising out of their business operations. The material ones are summarized in Note 18Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Adverse outcomes in these proceedings could require significant expenditures, result in lost revenue, or restrict, or disrupt business activities.
The Registrants could be subject to adverse publicity and reputational risks, which make them vulnerable to negative customer perception and could lead to increased regulatory oversight or other consequences (All Registrants).
The Registrants could be the subject of public criticism. Adverse publicity of this nature could render public service commissions and other regulatory and legislative authorities less likely to view energy companies in a favorable light, and could cause those companies, including the Registrants, to be susceptible to less favorable legislative and regulatory outcomes, as well as increased regulatory oversight and more stringent legislative or regulatory requirements.
Exelon and ComEd have received requests for information related to an SEC investigation into their lobbying activities. The outcome of the investigations could have a material adverse effect on their reputation and consolidated financial statements (Exelon and ComEd).
On October 22, 2019, the SEC notified Exelon and ComEd that it had opened an investigation into their lobbying activities in the state of Illinois. Exelon and ComEd have cooperated fully, including by providing all information requested by the SEC, and intend to continue to cooperate fully and expeditiously with the SEC. The outcome of the SEC’s investigation cannot be predicted and could subject Exelon and ComEd to civil penalties, sanctions, or other remedial measures. Any of the foregoing, as well as the appearance of non-compliance with anti-corruption and anti-bribery laws, could have an adverse impact on Exelon’s and ComEd’s reputations or relationships with regulatory and legislative authorities, customers, and other stakeholders, as well as their consolidated financial
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statements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
If ComEd violates its Deferred Prosecution Agreement announced on July 17, 2020, it could have an adverse effect on the reputation and consolidated financial statements of Exelon and ComEd (Exelon and ComEd).
On July 17, 2020, ComEd entered into a Deferred Prosecution Agreement (DPA) with the U.S. Attorney’s Office for the co-owned Salem plant.Northern District of Illinois (USAO) to resolve the USAO’s investigation into Exelon’s and ComEd’s lobbying activities in the State of Illinois. Exelon was not made a party to the DPA and the investigation by the USAO into Exelon’s activities ended with no charges being brought against Exelon. Under the DPA, the USAO filed a single charge alleging that ComEd improperly gave and offered to give jobs, vendor subcontracts, and payments associated with those jobs and subcontracts for the benefit of the Speaker of the Illinois House of Representatives and the Speaker’s associates, with the intent to influence the Speaker’s action regarding legislation affecting ComEd’s interests. The DPA provides that the USAO will defer any prosecution of such charge and any other criminal or civil case against ComEd in connection with the matters identified therein for a three-year period subject to certain obligations of ComEd, including, but not limited to, the following: (i) payment to the U.S. Treasury of $200 million; (ii) continued full cooperation with the government’s investigation; and (iii) ComEd’s adoption and maintenance of remedial measures involving compliance and reporting undertakings as specified in the DPA. If ComEd is found to have breached the terms of the DPA, the USAO may elect to prosecute, or bring a civil action against, ComEd for conduct alleged in the DPA or known to the government, which could result in fines or penalties and could have an adverse impact on Exelon’s and ComEd’s reputation or relationships with regulatory and legislative authorities, customers and other stakeholders, as well as their consolidated financial statements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.

Risks Related to Operational Factors
The Registrants are subject to risks associated with climate change (All Registrants).
The Registrants periodically perform analyses to better understand long-term projections of climate change and how those changes in the physical environments where they operate could affect their facilities and operations. The Registrants primarily operate in the Midwest and Mid-Atlantic of the United States, areas that historically have been prone to various types of severe weather events, and as such the Registrants have well-developed response and recovery programs based on these historical events. However, the Registrants’ physical facilities could be at greater risk of damage as changes in the global climate affect temperature and weather patterns, or be placed at greater risk of damage should climate changes result in more intense, frequent and extreme weather events, elevated levels of precipitation, sea level rise, increased surface water temperatures, and/or other effects. Over time, the Registrants are making additional investments to protect their facilities from physical climate-related risks.
In addition, changes to the climate may impact levels and patterns of demand for energy and related services, which could affect Registrants’ operations. Over time, the Registrants are making additional investments to adapt to changes in operational requirements to manage demand changes and customer expectations caused by climate change.
Climate Change risks include changes to the energy systems due to new technologies, changing customer expectations and/or voluntary GHG goals, as well as local, state, or federal regulatory requirements intended to reduce GHG emissions. The Registrants also periodically perform analyses of potential energy system transition pathways to reduce economy-wide GHG emissions to mitigate climate change. To the extent additional GHG reduction legislation and/or regulation becomes effective at the Federal and/or state levels, the Registrants could incur costs to further limit the GHG emissions from their operations or otherwise comply with applicable requirements. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Climate Change and ITEM 1.A. "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
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The Utility Registrants' operating costs are affected by their ability to maintain the availability and reliability of their delivery and operational systems (All Registrants).
Failures of the equipment or facilities used in the Utility Registrants' delivery systems could interrupt the electric transmission and electric and natural gas delivery, which could result in a loss of revenues and an increase in maintenance and capital expenditures. Equipment or facilities failures can be due to several factors, including natural causes such as weather or information systems failure. Specifically, if the implementation of AMI, smart grid, or other technologies in the Utility Registrants' service territory fail to perform as intended or are not successfully integrated with billing and other information systems, or if any of the financial, accounting, or other data processing systems fail or have other significant shortcomings, the Utility Registrants' financial results could be negatively impacted. In addition, dependence upon automated systems could further increase the risk that operational system flaws or internal and/or external tampering or manipulation of those systems will result in losses that are difficult to detect.
Regulated utilities, which are required to provide service to all customers within their service territory, have generally been afforded liability protections against claims by customers relating to failure of service. Under Illinois law, however, ComEd could be required to pay damages to its customers in some circumstances involving extended outages affecting large numbers of its customers, which could be material.
The Registrants are subject to physical security and cybersecurity risks (All Registrants).
The Registrants face physical security and cybersecurity risks. Threat sources, including sophisticated nation-state actors, continue to seek to exploit potential vulnerabilities in the electric and natural gas utility industry, grid infrastructure, and other energy infrastructures, and these attacks and disruptions, both physical and cyber, are becoming increasingly sophisticated and dynamic. Continued implementation of advanced digital technologies increases the potentially unfavorable impacts of such attacks. Additionally, the U.S. government has warned that the Ukraine conflict may increase the risks of attacks targeting critical infrastructure in the United States.
A security breach of the Registrants' physical assets or information systems or those of the Registrants competitors, vendors, business partners and interconnected entities in RTOs and ISOs, or regulators could materially impact Registrants by, among other things, impairing the availability of electricity and gas distributed by Registrants and/or the reliability of transmission and distribution systems, impairing the availability of vendor services and materials that the Registrants rely on to maintain their operations, or by leading to the theft or inappropriate release of certain types of information, including critical infrastructure information, sensitive customer, vendor, or employee data, or other confidential data. The risk of these events and security breaches occurring continues to intensify, and while the Registrants have been, and will likely continue to be, subjected to physical and cyber-attacks, to date none have directly experienced a material breach or material disruption to its network or information systems or our operations. However, as such attacks continue to increase in sophistication and frequency, the Registrants may be unable to prevent all such attacks in the future.
If a significant security breach were to occur, the Registrants' reputation could be negatively affected, customer confidence in the Registrants or others in the industry could be diminished, or the Registrants could be subject to legal claims, loss of revenues, increased costs, or operations shutdown. Moreover, the amount and scope of insurance maintained against losses resulting from any such security breaches may not be sufficient to cover losses or otherwise adequately compensate for any disruptions to business that could result.
The Utility Registrants' deployment of smart meters throughout their service territories could increase the risk of damage from an intentional disruption of the system by third parties.
In addition, new or updated security regulations or unforeseen threat sources could require changes in current measures taken by the Registrants or their business operations and could adversely affect their consolidated financial statements.
The Registrants’ employees, contractors, customers, and the general public could be exposed to a risk of injury due to the nature of the energy industry (All Registrants).
Employees and contractors throughout the organization work in, and customers and the general public could be exposed to, potentially dangerous environments near the Registrants’ operations. As a result, employees,
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contractors, customers, and the general public are at some risk for serious injury, including loss of life. These risks include gas explosions, pole strikes, and electric contact cases.
Natural disasters, war, acts and threats of terrorism, pandemic, and other significant events could negatively impact the Registrants' results of operations, ability to raise capital and future growth (All Registrants).
The Utility Registrants' distribution and transmission infrastructures could be affected by natural disasters and extreme weather events, which could result in increased costs, including supply chain costs. An extreme weather event within the Utility Registrants’ service areas can also directly affect their capital assets, causing disruption in service to customers due to downed wires and poles or damage to other operating equipment.
The impact that potential terrorist attacks could have on the industry and the Registrants is uncertain. The Registrants face a risk that their operations would be direct targets or indirect casualties of an act of terror. Any retaliatory military strikes or sustained military campaign could affect their operations in unpredictable ways, such as changes in insurance markets and disruptions of fuel supplies and markets, particularly oil. Furthermore, these catastrophic events could compromise the physical or cybersecurity of the Registrants' facilities, which could adversely affect the Registrants' ability to manage their businesses effectively. Instability in the financial markets as a result of terrorism, war, natural disasters, pandemic, credit crises, recession, or other factors also could result in a decline in energy consumption or interruption of fuel or the supply chain. In addition, the implementation of security guidelines and measures has resulted in and is expected to continue to result in increased costs.
The Registrants could be significantly affected by the outbreak of a pandemic. Exelon has plans in place to respond to a pandemic. However, depending on the severity of a pandemic and the resulting impacts to workforce and other resource availability, the ability to operate Exelon's transmission and distribution assets could be adversely affected.
In addition, Exelon maintains a level of insurance coverage consistent with industry practices against property, casualty, and cybersecurity losses subject to unforeseen occurrences or catastrophic events that could damage or destroy assets or interrupt operations. However, there can be no assurance that the amount of insurance will be adequate to address such property and casualty losses.
The Registrants’ businesses are capital intensive, and their assets could require significant expenditures to maintain and are subject to operational failure or be impacted by lack of availability of critical parts, which could result in potential liability (All Registrants).
The Utility Registrants’ businesses are capital intensive and require significant investments in transmission and distribution infrastructure projects. Equipment, even if maintained in accordance with good utility practices, is subject to operational failure, including events that are beyond the Utility Registrants’ control, and could require significant expenditures to operate efficiently. Additionally, if critical parts are not available, it may impact the timing of execution of capital projects. The Registrants' consolidated financial statements could be negatively affected if they were unable to effectively manage their capital projects or raise the necessary capital, or if they are deemed liable for operational failure. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources for additional information regarding the Registrants’ potential future capital expenditures.
The Utility Registrants' respective ability to deliver electricity, their operating costs, and their capital expenditures could be negatively impacted by transmission congestion and failures of neighboring transmission systems (All Registrants).
Demand for electricity within the Utility Registrants' service areas could stress available transmission capacity requiring alternative routing or curtailment of electricity usage. Also, insufficient availability of electric supply to meet customer demand could jeopardize the Utility Registrants' ability to comply with reliability standards and strain customer and regulatory agency relationships. As with all utilities, potential concerns over transmission capacity or generation facility retirements could result in PJM or FERC requiring the Utility Registrants to upgrade or expand their respective transmission systems through additional capital expenditures.
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PJM’s systems and operations are designed to ensure the reliable operation of the transmission grid and prevent the operations of one utility from having an adverse impact on the operations of the other utilities. However, service interruptions at other utilities may cause interruptions in the Utility Registrants’ service areas.
The Registrants' performance could be negatively affected if they fail to attract and retain an appropriately qualified workforce (All Registrants).
Certain events, such as the separation transaction, an employee strike, loss of employees, loss of contract resources due to a major event, and an aging workforce without appropriate replacements, could lead to operating challenges and increased costs for the Registrants. The challenges include lack of resources, loss of knowledge and a lengthy time period associated with skill development. In this case, costs, including costs for contractors to replace employees, productivity costs, and safety costs, could arise. The Registrants are particularly affected due to the specialized knowledge required of the technical and support employees for their transmission and distribution operations as well as areas where new technologies are pertinent.
The Registrants’ performance could be negatively affected by poor performance of third-party contractors that perform periodic or ongoing work (All Registrants).
All Registrants rely on third-party contractors to perform operations, maintenance, and construction work. Performance standards typically are included in all contractual obligations, but poor performance may impact the capital execution plan or operations, or have adverse financial or reputational consequences.
The Registrants could make acquisitions or investments in new business initiatives and new markets, which may not be successful or achieve the intended financial results (All Registrants).
The Utility Registrants face risks associated with their regulatory-mandated initiatives, such as smart grids and and broader beneficial electrification. These risks include, but are not limited to, cost recovery, regulatory concerns, cybersecurity, and obsolescence of technology. Such initiatives may not be successful.
Risks Related to the Separation (Exelon)
The separation may not achieve some or all of the benefits anticipated by Exelon and, following the separation, Exelon's common stock price may underperform relative to Exelon's expectations.
By separating the Utility Registrants and Constellation, Exelon created two publicly traded companies with the resources necessary to best serve customers and sustain long-term investment and operating excellence. The separate companies are expected to create value by having the strategic flexibility to focus on their unique customer, market and community priorities. However, the separation may not provide such results on the scope or scale that Exelon anticipates, and Exelon may not realize the anticipated benefits of the separation. Failure to do so could have a material adverse effect on Exelon's financial statements and its common stock price.
In connection with the separation into two public companies, Exelon and Constellation will indemnify each other for certain liabilities. If Exelon is required to pay under these indemnities to Constellation, Exelon's financial results could be negatively impacted. The Constellation indemnities may not be sufficient to hold Exelon harmless from the full amount of liabilities for which Constellation will be allocated responsibility, and Constellation may not be able to satisfy its indemnification obligations in the future.
Pursuant to the separation agreement and certain other agreements between Exelon and Constellation, each party will agree to indemnify the other for certain liabilities, in each case for uncapped amounts. Indemnities that Exelon may be required to provide Constellation are not subject to any cap, may be significant and could negatively impact its business. Third parties could also seek to hold Exelon responsible for any of the liabilities that Constellation has agreed to retain. Any amounts Exelon is required to pay pursuant to these indemnification obligations and other liabilities could require Exelon to divert cash that would otherwise have been used in furtherance of its operating business. Further, the indemnities from Constellation for Exelon's benefit may not be
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sufficient to protect Exelon against the full amount of such liabilities, and Constellation may not be able to fully satisfy its indemnification obligations.
Moreover, even if Exelon ultimately succeeds in recovering from Constellation any amounts for which Exelon is held liable, Exelon may be temporarily required to bear these losses. Each of these risks could negatively affect Exelon's business, results of operations and financial condition.
ITEM 1B.UNRESOLVED STAFF COMMENTS
All Registrants
None.
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ITEM 2.PROPERTIES
The Utility Registrants
The Utility Registrants' electric substations and a portion of their transmission rights are located on property that they own. A significant portion of their electric transmission and distribution facilities are located above or underneath highways, streets, other public places, or property that others own. The Utility Registrants believe that they have satisfactory rights to use those places or property in the form of permits, grants, easements, licenses, and franchise rights; however, they have not necessarily undertaken to examine the underlying title to the land upon which the rights rest.
Transmission and Distribution
The Utility Registrants’ high voltage electric transmission lines owned and in service at December 31, 2022 were as follows:
VoltageCircuit Miles
(Volts)ComEdPECOBGEPepcoDPLACE
765,00090
500,000(a)
18821610915
345,0002,678
230,000550352770472272
138,0002,2571355561586214
115,00070025
69,000177567662
___________
(a)    In addition, PECO, DPL, and ACE have an ownership interest located in Delaware and New Jersey. See Note 8 — Jointly Owned Electric Utility Plant of the Combined Notes to the Consolidated Financial Statements for additional information.
The Utility Registrants' electric distribution system includes the following number of circuit miles of overhead and underground lines:
Circuit MilesComEdPECOBGEPepcoDPLACE
Overhead35,38712,9659,1554,1306,0077,345
Underground32,6849,59017,9277,2076,5133,007
Gas
The following table presents PECO’s, BGE’s, and DPL’s natural gas pipeline miles at December 31, 2022:
PECOBGEDPL
Transmission(a)
91528
Distribution6,9907,5272,198
Service piping6,4796,7611,486
Total13,47814,4403,692
___________
(a)    DPL has a 10% undivided interest in approximately 8 miles of natural gas transmission mains located in Delaware, which are used by DPL for its natural gas operations and by 90% owner for distribution of natural gas to its electric generating facilities.

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The following table presents PECO’s, BGE’s, and DPL’s natural gas facilities:
RegistrantFacilityLocationStorage Capacity
(mmcf)
Send-out or Peaking Capacity
(mmcf/day)
PECOLNG FacilityWest Conshohocken, PA1,200160
PECOPropane Air PlantChester, PA10525
BGELNG FacilityBaltimore, MD1,056332
BGEPropane Air PlantBaltimore, MD55085
DPLLNG FacilityWilmington, DE25025
PECO, BGE, and DPL also own 30, 30, and 10 natural gas city gate stations and direct pipeline customer delivery points at various locations throughout their gas service territory, respectively.
First Mortgage and Insurance
The principal properties of ComEd, PECO, PEPCO, DPL, and ACE are subject to the lien of their respective Mortgages under which their respective First Mortgage Bonds are issued. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.

The Utility Registrants maintain property insurance against loss or damage to their properties by fire or other perils, subject to certain exceptions. For their insured losses, the Utility Registrants are self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect in the consolidated financial condition or results of operations of the Utility Registrants.

Exelon
Security Measures
The Registrants have initiated and work to maintain security measures. On a continuing basis, the Registrants evaluate enhanced security measures at certain critical locations, enhanced response and recovery plans, long-term design changes, and redundancy measures. Additionally, the energy industry has strategic relationships with governmental authorities to ensure that emergency plans are in place and critical infrastructure vulnerabilities are addressed in order to maintain the reliability of the country’s energy systems.

ITEM 3.LEGAL PROCEEDINGS
All Registrants
The Registrants are parties to various lawsuits and regulatory proceedings in the ordinary course of their respective businesses. For information regarding material lawsuits and proceedings, see Note 3 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Such descriptions are incorporated herein by these references.

ITEM 4.MINE SAFETY DISCLOSURES
Not Applicable
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PART II
(Dollars in millions, except per share data, unless otherwise noted)
ITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Exelon
Exelon’s common stock is listed on the Nasdaq (trading symbol: EXC). As of January 31, 2023, there were 994,126,931 shares of common stock outstanding and approximately 80,780 record holders of common stock.
Stock Performance Graph
The performance graph below illustrates a five-year comparison of cumulative total returns based on an initial investment of $100 in Exelon common stock, compared with the S&P 500 Stock Index and the S&P Utility Index, for the period 2018 through 2022. Cumulative total returns account for the separation of Constellation, as spin-off dividend is assumed to be reinvested as received.
This performance chart assumes:
$100 invested on December 31, 2017 in Exelon common stock, the S&P 500 Stock Index, and the S&P Utility Index; and
All dividends are reinvested.
exc-20221231_g1.jpg
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Value of Investment at December 31,
201720182019202020212022
Exelon Corporation$100.00$118.33$123.39$118.59$167.70$181.67
S&P 500$100.00$95.62$125.72$148.85$191.58$156.88
S&P Utilities$100.00$104.11$131.54$132.18$155.53$157.97
ComEd
As of January 31, 2023, there were 127,021,394 outstanding shares of common stock, $12.50 par value, of ComEd, of which 127,002,904 shares were indirectly held by Exelon. As of January 31, 2023, in addition to Exelon, there were 283 record holders of ComEd common stock. There is no established market for shares of the common stock of ComEd.
PECO
As of January 31, 2023, there were 170,478,507 outstanding shares of common stock, without par value, of PECO, all of which were indirectly held by Exelon.
BGE
As of January 31, 2023, there were 1,000 outstanding shares of common stock, without par value, of BGE, all of which were indirectly held by Exelon.
PHI
As of January 31, 2023, Exelon indirectly held the entire membership interest in PHI.
Pepco
As of January 31, 2023, there were 100 outstanding shares of common stock, $0.01 par value, of Pepco, all of which were indirectly held by Exelon.
DPL
As of January 31, 2023, there were 1,000 outstanding shares of common stock, $2.25 par value, of DPL, all of which were indirectly held by Exelon.
ACE
As of January 31, 2023, there were 8,546,017 outstanding shares of common stock, $3.00 par value, of ACE, all of which were indirectly held by Exelon.
All Registrants
Dividends
Under applicable Federal law, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE can pay dividends only from retained, undistributed, or current earnings. A significant loss recorded at ComEd, PECO, BGE, PHI, Pepco, DPL, or ACE may limit the dividends that these companies can distribute to Exelon.
ComEd has agreed, in connection with a financing arranged through ComEd Financing III, that ComEd will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debt securities issued to ComEd Financing III; (2) it defaults on its guarantee of the payment of distributions on the preferred trust securities of ComEd Financing III; or (3) an event of default occurs under the Indenture under which the subordinated debt securities are issued. No such event has occurred.
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PECO has agreed, in connection with financings arranged through PEC L.P. and PECO Trust IV, that PECO will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debentures which were issued to PEC L.P. or PECO Trust IV; (2) it defaults on its guarantee of the payment of distributions on the Series D Preferred Securities of PEC L.P. or the preferred trust securities of PECO Trust IV; or (3) an event of default occurs under the Indenture under which the subordinated debentures are issued. No such event has occurred.
BGE is subject to restrictions established by the MDPSC that prohibit BGE from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. No such event has occurred.
Pepco is subject to certain dividend restrictions established by settlements approved by the MDPSC and DCPSC that prohibit Pepco from paying a dividend on its common shares if (a) after the dividend payment, Pepco's equity ratio would be below 48% as calculated pursuant to the MDPSC's and DCPSC's ratemaking precedents, or (b) Pepco’s senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. No such event has occurred.
DPL is subject to certain dividend restrictions established by settlements approved by the DEPSC and MDPSC that prohibit DPL from paying a dividend on its common shares if (a) after the dividend payment, DPL's equity ratio would be below 48% as calculated pursuant to the DEPSC's and MDPSC's ratemaking precedents, or (b) DPL’s corporate issuer or senior unsecured credit rating, or its equivalent, is rated by any of the three major credit rating agencies below the generally accepted definition of investment grade. No such event has occurred.
ACE is subject to certain dividend restrictions established by settlements approved by the NJBPU that prohibit ACE from paying a dividend on its common shares if (a) after the dividend payment, ACE's common equity ratio would be below 48% as calculated pursuant to the NJBPU's ratemaking precedents, or (b) ACE's senior corporate issuer or senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. ACE is also subject to a dividend restriction which requires ACE to notify and obtain the prior approval of the NJBPU before dividends can be paid if its equity as a percent of its total capitalization, excluding securitization debt, falls below 30%. No such events have occurred.
Exelon’s Board of Directors approved an updated dividend policy for 2023. The 2023 quarterly dividend will be $0.36 per share.
As of December 31, 2022, Exelon had retained earnings of $4,597 million, ComEd had retained earnings of $2,030 million, PECO had retained earnings of $1,861 million, BGE had retained earnings of $2,075 million, and PHI had undistributed losses of $352 million.
The following table sets forth Exelon’s quarterly cash dividends per share paid during 2022 and 2021:
20222021
(per share)Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Exelon$0.3375 $0.3375 $0.3375 $0.3375 $0.3825 $0.3825 $0.3825 $0.3825 
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The following table sets forth PHI's quarterly distributions and ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's quarterly common dividend payments:
20222021
(in millions)4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
ComEd144 145 145 144 127 127 126 127 
PECO100 99 100 100 85 85 84 85 
BGE74 75 75 76 73 73 72 74 
PHI125 230 293 102 98 191 333 81 
Pepco63 100 258 42 47 98 95 28 
DPL48 39 15 41 41 43 23 40 
ACE17 90 19 19 51 215 14 
First Quarter 2023 Dividend
On February 14, 2023, Exelon's Board of Directors declared a regular quarterly dividend of $0.36 per share on Exelon’s common stock for the first quarter of 2023. The dividend is payable on Friday, March 10, 2023, to shareholders of record of Exelon as of 5 p.m. Eastern time on Monday, February 27, 2023.
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ITEM 6.[RESERVED]
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Item 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
(Dollars in millions except per share data, unless otherwise noted)
Exelon
Executive Overview
Exelon is a utility services holding company engaged in the energy distribution and transmission businesses through ComEd, PECO, BGE, Pepco, DPL, and ACE.
Exelon has six reportable segments consisting of ComEd, PECO, BGE, Pepco, DPL, and ACE. See Note 1 — Significant Accounting Policies and Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information regarding Exelon's principal subsidiaries and reportable segments.
Exelon’s consolidated financial information includes the results of its seven separate operating subsidiary registrants, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE, which, along with Exelon, are collectively referred to as the Registrants. The following combined Management’s Discussion and Analysis of Financial Condition and Results of Operations is separately filed by Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE. However, none of the Registrants makes any representation as to information related solely to any of the other Registrants. For discussion of the Utility Registrants' year ended December 31, 2021 compared to the year ended December 31, 2020, refer to ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS in the 2021 Recast Form 10-K, which was filed with the SEC on June 30, 2022.
COVID-19. The Registrants have taken steps to mitigate the potential risks posed by the global outbreak (pandemic) of COVID-19. The Registrants provide a critical service to our customers which means that it is paramount that we keep our employees who operate our businesses safe and minimize unnecessary risk of exposure to the virus by taking extra precautions for employees who work in the field and in our facilities. The Registrants have implemented work from home policies where appropriate, and imposed travel limitations on employees.
The Registrants continue to implement strong physical and cyber-security measures to ensure that our systems remain functional in order to both serve our operational needs with a remote workforce and keep them running to ensure uninterrupted service to our customers.
There were no changes in internal control over financial reporting as a result of COVID-19 that materially affected, or are reasonably likely to materially affect, any of the Registrants’ internal control over financial reporting. See ITEM 9A. CONTROLS AND PROCEDURES for additional information.
There were no material impacts to Exelon from unfavorable economic conditions due to COVID-19 for the years ended December 31, 2022 and 2021, other than the 2022 impairment discussed below.
The Registrants assessed long-lived assets, goodwill, and investments for recoverability. Exelon and BGE recorded a pre-tax impairment charge of $48 million in 2022 as a result of COVID-19 impacts on office use. See Note 12 — Asset Impairments for additional information related to this impairment assessment. None of the other Registrants recorded material impairment charges in 2022 as a result of COVID-19. Additionally, there were no material impairment charges recorded in 2021 as a result of COVID-19.
The Registrants will continue to monitor developments affecting their workforce, customers, and suppliers and will take additional precautions that they determine to be necessary in order to mitigate the impacts. The Registrants cannot predict the full extent of the impacts of COVID-19, which will depend on, among other things, the rate, and public perceptions of the effectiveness, of vaccinations and rate of resumption of business activity.

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Financial Results of Operations
GAAP Results of Operations. The following table sets forth Exelon's GAAP consolidated Net income attributable to common shareholders from continuing operations and the Utility Registrants' Net income for the year ended December 31, 2022 compared to the same period in 2021. For additional information regarding the financial results for the years ended December 31, 2022 and 2021 see the discussions of Results of Operations by Registrant.
20222021Favorable (Unfavorable) Variance
Exelon2,054 1,616 $438 
ComEd917 742 175 
PECO576 504 72 
BGE380 408 (28)
PHI608 561 47 
Pepco305 296 
DPL169 128 41 
ACE148 146 
Other(a)
(427)(599)172 
__________
(a)Primarily includes eliminating and consolidating adjustments, Exelon’s corporate operations, shared service entities, and other financing and investing activities.
The separation of Constellation Energy Corporation, including Generation and its subsidiaries, meets the criteria for discontinued operations and as such, Generation's results of operations are presented as discontinued operations and have been excluded from Exelon's continuing operations for all periods presented. See Note 1 — Significant Accounting Policies and Note 2 — Discontinued Operations for additional information.
Accounting rules require that certain BSC costs previously allocated to Generation be presented as part of Exelon’s continuing operations as these costs do not qualify as expenses of the discontinued operations. Such costs are included in Other in the table above and were $28 million and $429 million on a pre-tax basis, for the years ended December 31, 2022 and 2021, respectively.
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021. Net income attributable to common shareholders from continuing operationsincreased by $438 million and diluted earnings per average common share from continuing operations increased to $2.08 in 2022 from $1.65 in 2021 primarily due to:
Higher electric distribution earnings and energy efficiency earnings from higher rate base and higher allowed ROE due to an increase in treasury rates at ComEd;
The favorable impacts of rate increases at PECO, BGE, and PHI;
Favorable impacts of decreased storm costs at PECO and BGE; and
Lower BSC costs presented in Exelon’s continuing operations, which were previously allocated to Generation but do not qualify as expenses of the discontinued operation per the accounting rules.
The increases were partially offset by:
An income tax expense recorded in connection with the separation primarily due to the long-term marginal state income tax rate change, the recognition of valuation allowances against the net deferred tax assets positions for certain standalone state filing jurisdictions, and nondeductible transaction costs partially offset by a one-time impact associated with a state tax benefit;
An adjustment at PECO to exclude one-time non-cash impacts associated with the remeasurement of deferred income taxes as a result of the reduction in Pennsylvania corporate income tax rate;
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Higher depreciation expense at PECO, BGE, and PHI;
Higher credit loss expense at PECO, BGE, and PHI;
Higher storm costs at PHI; and
Higher interest expense at PECO, BGE, PHI, and Exelon Corporate.
Adjusted (non-GAAP) Operating Earnings. In addition to Net income, Exelon evaluates its operating performance using the measure of Adjusted (non-GAAP) operating earnings because management believes it represents earnings directly related to the ongoing operations of the business. Adjusted (non-GAAP) operating earnings exclude certain costs, expenses, gains and losses, and other specified items. This information is intended to enhance an investor’s overall understanding of year-to-year operating results and provide an indication of Exelon’s baseline operating performance excluding items that are considered by management to be not directly related to the ongoing operations of the business. In addition, this information is among the primary indicators management uses as a basis for evaluating performance, allocating resources, setting incentive compensation targets, and planning and forecasting of future periods. Adjusted (non-GAAP) operating earnings is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.
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The following table provides a reconciliation between Net income attributable to common shareholders from continuing operations as determined in accordance with GAAP and Adjusted (non-GAAP) operating earnings for the year ended December 31, 2022 compared to 2021: 
For the Years Ended December 31,
20222021
(In millions, except per share data)Earnings per
Diluted Share
Earnings per
Diluted Share
Net Income Attributable to Common Shareholders from Continuing Operations$2,054 $2.08 $1,616 $1.65 
Mark-to-Market Impact of Economic Hedging Activities (net of taxes of $1 and $3, respectively)— — 
Asset Impairments (net of taxes of $10)(a)
38 0.04 — — 
Cost Management Program (net of taxes of $1)(b)
— — 0.01 
Asset Retirement Obligation (net of taxes of $2 and $1, respectively)(4)— — 
COVID-19 Direct Costs (net of taxes of $6)(c)
— — 14 0.01 
Acquisition Related Costs (net of taxes of $5)(d)
— — 15 0.02 
ERP System Implementation Costs (net of taxes of $0 and $4, respectively)(e)
— 13 0.01 
Separation Costs (net of taxes of $10 and $21, respectively)(f)
24 0.02 58 0.06 
Income Tax-Related Adjustments (entire amount represents tax expense)(g)
122 0.12 62 0.06 
Adjusted (non-GAAP) Operating Earnings$2,239 $2.27 $1,791 $1.83 
__________
Note:
Amounts may not sum due to rounding.
Unless otherwise noted, the income tax impact of each reconciling item between GAAP Net Income and Adjusted (non-GAAP) Operating Earnings is based on the marginal statutory federal and state income tax rates for each Registrant, taking into account whether the income or expense item is taxable or deductible, respectively, in whole or in part. The marginal statutory income tax rates for 2022 and 2021 ranged from 24.0% to 29.0%.

(a)Reflects costs related to the impairment of an office building at BGE, which are recorded in Operating and maintenance expense.
(b)Primarily represents reorganization costs related to cost management programs.
(c)Represents direct costs related to COVID-19 consisting primarily of costs to acquire personal protective equipment, costs for cleaning supplies and services, and costs to hire healthcare professionals to monitor the health of employees, which are recorded in Operating and maintenance expense.
(d)Reflects certain BSC costs related to the acquisition of EDF's interest in CENG, which was completed in the third quarter of 2021, that were historically allocated to Generation but are presented as part of continuing operations in Exelon's results as these costs do not qualify as expenses of the discontinued operations per the accounting rules.
(e)Reflects costs related to a multi-year ERP system implementation, which are recorded in Operating and maintenance expense.
(f)Represents costs related to the separation primarily comprised of system-related costs, third-party costs paid to advisors, consultants, lawyers, and other experts assisting in the separation, and employee-related severance costs, which are recorded in Operating and maintenance expense.
(g)In 2021, for PHI, primarily reflects the recognition of a valuation allowance against a deferred tax asset associated with Delaware net operating loss carryforwards due to a change in Delaware tax law. In 2021, for Corporate, reflects the adjustment to deferred income taxes due to changes in forecasted apportionment. In 2022, for PECO, primarily reflects an adjustment to exclude one-time non-cash impacts associated with the remeasurement of deferred income taxes as a result of the reduction in Pennsylvania corporate income tax rate. In 2022, for Corporate, in connection with the separation, Exelon recorded an income tax expense primarily due to the long-term marginal state income tax rate change, the recognition of valuation allowances against the deferred tax assets positions for certain standalone state filing jurisdictions, and nondeductible transaction costs partially offset by a one-time impact associated with a state tax benefit.

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Significant 2022 Transactions and Developments
Separation
On February 21, 2021, Exelon’s Board of Directors approved a plan to separate the Utility Registrants and Generation, creating two publicly traded companies (“the separation”). Exelon completed the separation on February 1, 2022. Constellation was newly formed and incorporated in Pennsylvania on June 15, 2021 for the purpose of separation and holds Generation. The separation represented a strategic shift that would have a major effect on Exelon’s operations and financial results. Accordingly, the separation meets the criteria for discontinued operations. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information on the separation and discontinued operations.
In connection with the separation, Exelon incurred separation costs impacting continuing operations of $34 million and $79 million on a pre-tax basis for the year ended December 31, 2022 and 2021, respectively, which are recorded in Operating and maintenance expense. These costs are excluded from Adjusted (non-GAAP) Operating Earnings. The separation costs are primarily comprised of system-related costs, third-party costs paid to advisors, consultants, lawyers, and other experts assisting in the separation, and employee-related severance costs.
Equity Securities Offering
On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering of 12.995 million shares of its common stock, no par value. The net proceeds were $563 million before expenses paid by Exelon. See Note 19 — Shareholders' Equity of the Combined Notes to Consolidated Financial Statements for additional information.
Utility OperationsDistribution Base Rate Case Proceedings
Service TerritoriesThe Utility Registrants file base rate cases with their regulatory commissions seeking increases or decreases to their electric transmission and distribution, and gas distribution rates to recover their costs and earn a fair return on their investments. The outcomes of these regulatory proceedings impact the Utility Registrants’ current and future financial statements.
The following tables show the Utility Registrants’ completed and pending distribution base rate case proceedings in 2022. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on these and other regulatory proceedings.
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Completed Distribution Base Rate Case Proceedings
Registrant/JurisdictionFiling DateServiceRequested Revenue Requirement IncreaseApproved Revenue Requirement IncreaseApproved ROEApproval DateRate Effective Date
ComEd - IllinoisApril 16, 2021Electric$51 $46 7.36 %December 1, 2021January 1, 2022
April 15, 2022Electric199 199 7.85 %November 17, 2022January 1, 2023
PECO - PennsylvaniaMarch 30, 2021Electric246 132 N/ANovember 18, 2021January 1, 2022
March 31, 2022Natural Gas82 55 October 27, 2022January 1, 2023
BGE - MarylandMay 15, 2020 (amended September 11, 2020)Electric203 140 9.50 %December 16, 2020January 1, 2021
Natural Gas108 74 9.65 %
Pepco - District of ColumbiaMay 30, 2019 (amended June 1, 2020)Electric136 109 9.275 %June 8, 2021July 1, 2021
Pepco - MarylandOctober 26, 2020 (amended March 31, 2021)Electric104 52 9.55 %June 28, 2021June 28, 2021
DPL - MarylandSeptember 1, 2021 (amended December 23, 2021)Electric27 13 9.60 %March 2, 2022March 2, 2022
May 19, 2022Electric38 29 9.60 %December 14, 2022January 1, 2023
DPL - DelawareJanuary 14, 2022 (amended August 15, 2022)Natural Gas13 9.60 %October 12, 2022August 14, 2022
ACE - New JerseyDecember 9, 2020 (amended February 26, 2021)Electric67 41 9.60 %July 14, 2021January 1, 2022

Pending Distribution Base Rate Case Proceedings
Registrant/JurisdictionFiling DateServiceRequested Revenue Requirement IncreaseRequested ROEExpected Approval Timing
ComEd - IllinoisJanuary 17, 2023Electric$1,472 10.50% to 10.65%Fourth quarter of 2023
DPL - DelawareDecember 15, 2022Electric60 10.50 %Second quarter of 2024
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Transmission Formula Rates
The following total increases/(decreases) were included in the Utility Registrants' 2022 annual electric transmission formula rate updates. All rates are effective June 1, 2022 to May 31, 2023, subject to review by interested parties pursuant to review protocols of each Utility Registrants' tariff. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
RegistrantInitial Revenue Requirement IncreaseAnnual Reconciliation (Decrease) IncreaseTotal Revenue Requirement IncreaseAllowed Return on Rate BaseAllowed ROE
ComEd$24 $(24)$— 8.11 %11.50 %
PECO23 16 39 7.30 %10.35 %
BGE25 (4)16 7.30 %10.50 %
Pepco16 15 31 7.60 %10.50 %
DPL11 7.09 %10.50 %
ACE21 13 34 7.18 %10.50 %
Pennsylvania Corporate Income Tax Rate Change
On July 8, 2022, Pennsylvania enacted House Bill 1342, which will permanently reduce the corporate income tax rate from 9.99% to 4.99%. The tax rate will be reduced to 8.99% for the 2023 tax year. Starting with the 2024 tax year, the rate is reduced by 0.50% annually until it reaches 4.99% in 2031. As a result of the rate change, in the third quarter of 2022, Exelon and PECO recorded a one-time decrease to deferred income taxes of $390 million with a corresponding decrease to the deferred income taxes regulatory asset of $428 million for the amounts that are expected to be settled through future customer rates and an increase to income tax expense of $38 million (net of federal taxes), which was excluded from Exelon's Adjusted (non-GAAP) Operating Earnings. The tax rate decrease is not expected to have a material ongoing impact to Exelon’s and PECO’s financial statements. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Inflation Reduction Act
On August 16, 2022, the Inflation Reduction Act (IRA) was signed into law. The bill extends tax benefits for renewable technologies like solar and wind, and it creates new tax benefits for alternative clean energy sources like nuclear and hydrogen and it focuses on energy efficiency, electrification, and equity. However, the bill also implements a new 15.0% corporate minimum tax based on modified GAAP net income. Exelon estimates the IRA could result in an increase in cash taxes for Exelon of approximately $200 million per year starting in 2023. Exelon is continuing to assess the impacts of the IRA on the financial statements and will update estimates based on guidance to be issued by the U.S. Treasury in the future.
Asset Impairment
In the third quarter of 2022, a review of the impacts of COVID-19 on office use resulted in plans to cease the renovation and dispose of an office building at BGE before the asset was placed into service. BGE determined that the carrying value was not recoverable and that its fair value was less than carrying value. As a result, Exelon and BGE recorded a pre-tax impairment charge of $48 million in 2022, which was excluded from Exelon's Adjusted (non-GAAP) Operating Earnings. See Note 11 — Asset Impairments of the Combined Notes to Consolidated Financial Statements for additional information.
ComEd's FERC Audit
The Registrants are subject to periodic audits and investigations by FERC. FERC’s Division of Audits and Accounting initiated a nonpublic audit of ComEd in May 2021 evaluating ComEd’s compliance with (1) approved terms, rates and conditions of its transmission formula rate mechanism; (2) accounting requirements of the Uniform System of Accounts; (3) reporting requirements of the FERC Form 1; and (4) the requirements for record retention. The audit covered the period from January 1, 2017 through August 31, 2022. On January 17, 2023, ComEd was provided with information on a series of potential findings, including concerning ComEd's
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methodology regarding the allocation of certain overhead costs to capital under FERC regulations. The final outcome and resolution of the findings or of the audit itself cannot be predicted and the results, while not reasonably estimable at this time, could be material to the Exelon and ComEd financial statements. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Other Key Business Drivers and Management Strategies

Utility Rates and Rate Proceedings
The Utility Registrants file rate cases with their regulatory commissions seeking increases or decreases to their electric transmission and distribution, and gas distribution rates to recover their costs and earn a fair return on their investments. The outcomes of these regulatory proceedings impact the Utility Registrants’ current and future results of operations, cash flows, and financial positions. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on these regulatory proceedings.
Legislative and Regulatory Developments
City of Chicago Franchise Agreement
The current ComEd Franchise Agreement with the City of Chicago (the City) has been in force since 1992. The Franchise Agreement grants rights to use the public right of way to install, maintain, and operate the wires, poles, and other infrastructure required to deliver electricity to residents and businesses across the City. The Franchise Agreement became terminable on one year notice as of December 31, 2020. It now continues in effect indefinitely unless and until either party issues a notice of termination, effective one year later, or it is replaced by mutual agreement with a new franchise agreement between ComEd and the City. If either party terminates and no new agreement is reached between the parties, the parties could continue with ComEd providing electric services within the City with no franchise agreement in place. The City also has an option to terminate and purchase the ComEd system (“municipalize”), which also requires one year notice. Neither party has issued a notice of termination at this time, the City has not exercised its municipalization option, and no new agreement has become effective. Accordingly, the 1992 Franchise Agreement remains in effect at this time. In April 2021, the City invited interested parties to respond to a Request for Information (RFI) regarding the franchise for electricity delivery. Final responses to the RFI were due on July 30, 2021, however, on July 29, 2021, the City chose to extend the final submission deadline to September 30, 2021. ComEd submitted its response to the RFI by the due date. However, the City did not proceed to issue an RFP. Since that time, ComEd and the City continued to negotiate and have arrived at a proposed Chicago Franchise Agreement (CFA) and an Energy and Equity Agreement (EEA). These agreements together are intended to grant ComEd the right to continue providing electric utility services using public ways within the City of Chicago, and to create a new non-profit entity to advance energy and energy-related equity projects. On February 1, 2023, the proposed CFA and EEA were introduced to the City Council. The proposed CFA and EEA remain subject to approval by the City Council and the Exelon Board.
While Exelon and ComEd cannot predict the ultimate outcome of these processes, fundamental changes in the agreements or other adverse actions affecting ComEd’s business in the City would require changes in their business planning models and operations and could have a material adverse impact on Exelon’s and ComEd’s consolidated financial statements. If the City were to disconnect from the ComEd system, ComEd would seek full compensation for the business and its associated property taken by the City, as well as for all damages resulting to ComEd and its system. ComEd would also seek appropriate compensation for stranded costs with FERC.
Infrastructure Investment and Jobs Act
On November 15, 2021, President Biden signed the $1.2 trillion Infrastructure Investment and Jobs Act (IIJA) into law. IIJA provides for approximately $550 billion in new federal spending. Categories of funding include funding for a variety of infrastructure needs, including but not limited to: (1) power and grid reliability and resilience, (2) resilience for cybersecurity to address critical infrastructure needs, and (3) electric vehicle charging infrastructure for alternative fuel corridors. Federal agencies are developing guidelines to implement spending programs under IIJA. The time needed to develop these guidelines will vary with some limited program applications opened as early as the first quarter of 2022. The Registrants are continuing to analyze the legislation and considering possible opportunities to apply for funding, either directly or in potential collaborations with state and/or local
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agencies and key stakeholders. The Registrants cannot predict the ultimate timing and success of securing funding from programs under IIJA.
ComEd and BGE applied for the Middle Mile Grant (MMG), which establishes and funds construction, improvement, or acquisition of middle mile broadband infrastructure which creates high-speed internet services. The MMG addresses inequitable broadband access by expansion and extension of the middle mile infrastructure in underserved communities. ComEd and BGE cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
In December 2022, Exelon and the Utility Registrants submitted 14 concept papers in response to the Department of Energy's Grid Resilience and Innovation Partnership (GRIP) program. These concept papers are focused on delivering grid resilience and grid benefits to customers and communities across the Exelon footprint. Eleven of the fourteen opportunities received letters of encouragement to submit applications due in the first half of 2023. Exelon cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
Exelon and the Utility Registrants are supporting three different Regional Clean Hydrogen Hub opportunities, covering all five states that Exelon operates in plus Washington D.C., that have submitted concept papers to the Department of Energy. All three opportunities have received letters of encouragement from Department of Energy to submit applications due in April 2023. The program will create networks of hydrogen producers, consumers, and local connective infrastructure to accelerate the use of hydrogen as a clean energy carrier that can deliver or store energy. Exelon cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
Critical Accounting Policies and Estimates
The preparation of financial statements in conformity with GAAP requires that management apply accounting policies and make estimates and assumptions that affect results of operations and the amounts of assets and liabilities reported in the financial statements. Management believes that the accounting policies described below require significant judgment in their application or incorporate estimates and assumptions that are inherently uncertain and that may change in subsequent periods. Additional information on the application of these accounting policies can be found in the Combined Notes to Consolidated Financial Statements.
Goodwill (Exelon, ComEd, and PHI)
As of December 31, 2022, Exelon’s $6.6 billion carrying amount of goodwill consists of $2.6 billion at ComEd and $4 billion at PHI. These entities are required to perform an assessment for possible impairment of their goodwill at least annually or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting units below their carrying amount. A reporting unit is an operating segment or one level below an operating segment (known as a component) and is the level at which goodwill is assessed for impairment. ComEd has a single operating segment and reporting unit. PHI’s operating segments and reporting units are Pepco, DPL, and ACE. See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information. Exelon's and ComEd’s goodwill has been assigned entirely to the ComEd reporting unit. Exelon's and PHI’s goodwill has been assigned to the Pepco, DPL, and ACE reporting units in the amounts of $2.1 billion, $1.4 billion, and $0.5 billion, respectively. See Note 12 — Intangible Assets of the Combined Notes to Consolidated Financial Statements for additional information.
Entities assessing goodwill for impairment have the option of first performing a qualitative assessment to determine whether a quantitative assessment is necessary. As part of the qualitative assessments, Exelon, ComEd, and PHI evaluate, among other things, management's best estimate of projected operating and capital cash flows for their businesses, outcomes of recent regulatory proceedings, changes in certain market conditions, including the discount rate and regulated utility peer EBITDA multiples, and the passing margin from their last quantitative assessments performed.
Application of the goodwill impairment assessment requires management judgment, including the identification of reporting units and determining the fair value of the reporting unit, which management estimates using a weighted combination of a discounted cash flow analysis and a market multiples analysis. Significant assumptions used in these fair value analyses include discount and growth rates, utility sector market
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performance and transactions, and projected operating and capital cash flows for ComEd’s, Pepco's, DPL's, and ACE's businesses and the fair value of debt.
While the 2022 annual assessments indicated no impairments, certain assumptions used in the assessment are highly sensitive to changes. Adverse regulatory actions or changes in significant assumptions could potentially result in future impairments of Exelon’s, ComEd's, or PHI’s goodwill, which could be material.
See Note 1 — Significant Accounting Policies and Note 12 — Intangible Assets of the Combined Notes to Consolidated Financial Statements for additional information.
Unamortized Energy Contract Liabilities (Exelon and PHI)
Unamortized energy contract liabilities represent the remaining unamortized balances of non-derivative electricity contracts that Exelon acquired as part of the PHI merger. The initial amount recorded represents the difference between the fair value of the contracts at the time of acquisition and the contract value based on the terms of each contract. Offsetting regulatory assets were also recorded for those energy contract costs that are probable of recovery through customer rates. The unamortized energy contract liabilities and the corresponding regulatory assets, respectively, are amortized over the life of the contract in relation to the expected realization of the underlying cash flows. Amortization of the unamortized energy contract liabilities are recorded through purchased power and fuel expense. See Note 3 — Regulatory Matters and Note 12 — Intangible Assets of the Combined Notes to Consolidated Financial Statements for additional information.
Depreciable Lives of Property, Plant, and Equipment (All Registrants)
The Registrants have significant investments in electric and natural gas transmission and distribution assets. These assets are generally depreciated on a straight-line basis, using the group, or composite methods of depreciation. The group approach is typically for groups of similar assets that have approximately the same useful lives and the composite approach is used for heterogeneous assets that have different lives. Under both methods, a reporting entity depreciates the assets over the average life of the assets in the group. The estimation of asset useful lives requires management judgment, supported by formal depreciation studies of historical asset retirement experience. Depreciation studies are conducted periodically and as required by a rate regulator or regulatory action, or changes in retirement patterns indicate an update is necessary.
Depreciation studies generally serve as the basis for amounts allowed in customer rates for recovery of depreciation costs. Generally, the Registrants adjust their depreciation rates for financial reporting purposes concurrent with adjustments to depreciation rates reflected in customer rates, unless the depreciation rates reflected in customer rates do not align with management’s judgment as to an appropriate estimated useful life or have not been updated on a timely basis. Depreciation expense and customer rates for ComEd, BGE, Pepco, DPL, and ACE include an estimate of the future costs of dismantling and removing plant from service upon retirement. See Note 3 — Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for information regarding regulatory liabilities and assets recorded by ComEd, BGE, Pepco, DPL, and ACE related to removal costs.
PECO’s removal costs are capitalized to accumulated depreciation when incurred and recorded to depreciation expense over the life of the new asset constructed consistent with PECO’s regulatory recovery method. Estimates for such removal costs are also evaluated in the periodic depreciation studies.
Changes in estimated useful lives of electric and natural gas transmission and distribution assets could have a significant impact on the Registrants’ future results of operations. See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for information regarding depreciation and estimated service lives of the property, plant, and equipment of the Registrants.
Retirement Benefits (All Registrants)
Exelon sponsors defined benefit pension plans and OPEB plans for substantially all current employees. The measurement of the plan obligations and costs of providing benefits involves various factors, including the development of valuation assumptions and inputs and accounting policy elections. When developing the required assumptions, Exelon considers historical information as well as future expectations. The measurement of benefit obligations and costs is affected by several assumptions including the discount rate, the long-term expected rate of return on plan assets, the anticipated rate of increase of health care costs, Exelon's contributions, the rate of
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compensation increases, and the long-term expected investment rate credited to employees of certain plans, among others. The assumptions are updated annually and upon any interim remeasurement of the plan obligations.
Pension and OPEB plan assets include equity securities, including U.S. and international securities, and fixed income securities, as well as certain alternative investment classes such as real estate, private equity, and hedge funds.
Expected Rate of Return on Plan Assets. In determining the EROA, Exelon considers historical economic indicators (including inflation and GDP growth) that impact asset returns, as well as expectation regarding future long-term capital market performance, weighted by Exelon’s target asset class allocations. Exelon calculates the amount of expected return on pension and OPEB plan assets by multiplying the EROA by the MRV of plan assets at the beginning of the year, taking into consideration anticipated contributions and benefit payments to be made during the year. In determining MRV, the authoritative guidance for pensions and postretirement benefits allows the use of either fair value or a calculated value that recognizes changes in fair value in a systematic and rational manner over not more than five years. For the majority of pension plan assets, Exelon uses a calculated value that adjusts for 20% of the difference between fair value and expected MRV of plan assets. Use of this calculated value approach enables less volatile expected asset returns to be recognized as a component of pension cost from year to year. For OPEB plan assets and certain pension plan assets, Exelon uses fair value to calculate the MRV.
Discount Rate. The discount rates are determined by developing a spot rate curve based on the yield to maturity of a universe of high-quality non-callable (or callable with make whole provisions) bonds with similar maturities to the related pension and OPEB obligations. The spot rates are used to discount the estimated future benefit distribution amounts under the pension and OPEB plans. The discount rate is the single level rate that produces the same result as the spot rate curve. Exelon utilizes an analytical tool developed by its actuaries to determine the discount rates.
Mortality. The mortality assumption is composed of a base table that represents the current expectation of life expectancy of the population adjusted by an improvement scale that attempts to anticipate future improvements in life expectancy. Exelon’s mortality assumption utilizes the SOA 2019 base table (Pri-2012) and MP-2021 improvement scale adjusted to use Proxy SSA ultimate improvement rates.
Sensitivity to Changes in Key Assumptions. The following tables illustrate the effects of changing certain of the actuarial assumptions discussed above, while holding all other assumptions constant:
Actual Assumption
Actuarial AssumptionPensionOPEBChange in
Assumption
PensionOPEBTotal
Change in 2022 cost:
Discount rate(a)
3.24%3.20%0.5%$(16)$(2)$(18)
3.24%3.20%(0.5)%31 38 
EROA7.00%6.44%0.5%(54)(7)(61)
7.00%6.44%(0.5)%54 61 
Change in benefit obligation at December 31, 2022:
Discount rate(a)
5.53%5.51%0.5%(508)(83)(591)
5.53%5.51%(0.5)%655 104 759 
__________
(a)In general, the discount rate will have a larger impact on the pension and OPEB cost and obligation as the rate moves closer to 0%. Therefore, the discount rate sensitivities above cannot necessarily be extrapolated for larger increases or decreases in the discount rate. Additionally, Exelon utilizes a liability-driven investment strategy for its pension asset portfolio. The sensitivities shown above do not reflect the offsetting impact that changes in discount rates may have on pension asset returns.
See Note 1 — Significant Accounting Policies and Note 14 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information regarding the accounting for the defined benefit pension plans and OPEB plans.
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Regulatory Accounting (All Registrants)
For their regulated electric and gas operations, the Registrants reflect the effects of cost-based rate regulation in their financial statements, which is required for entities with regulated operations that meet the following criteria: (1) rates are established or approved by a third-party regulator; (2) rates are designed to recover the entities’ cost of providing services or products; and (3) a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. Regulatory assets represent incurred costs that have been deferred because of their probable future recovery from customers through regulated rates. Regulatory liabilities represent (1) revenue or gains that have been deferred because it is probable such amounts will be returned to customers through future regulated rates; or (2) billings in advance of expenditures for approved regulatory programs. If it is concluded in a future period that a separable portion of operations no longer meets the criteria discussed above, the Registrants would be required to eliminate any associated regulatory assets and liabilities and the impact, which could be material, would be recognized in the Consolidated Statements of Operations and Comprehensive Income.
The following table illustrates gains (losses) to be included in net income that could result from the elimination of regulatory assets and liabilities and charges against OCI related to deferred costs associated with Exelon's pension and OPEB plans that are recorded as regulatory assets in Exelon's Consolidated Balance Sheets (before taxes) as of December 31, 2022:
(In millions)ExelonComEdPECOBGEPHIPepcoDPLACE
Gain (loss)$2,461 $3,697 $(387)$159 $(978)$(211)$142 $(442)
Charge against OCI(a)
(2,590)— — — — — — — 
___________
(a)Exelon's charge against OCI (before taxes) consists of up to $1.9 billion, $347 million, $492 million, $279 million, $113 million, and $59 million related to ComEd's, BGE's, PHI's, Pepco's, DPL's, and ACE's respective portions of the deferred costs associated with Exelon's pension and OPEB plans. Exelon also has a net regulatory liability of $115 million (before taxes) related to PECO’s portion of the deferred costs associated with Exelon’s OPEB plans that would result in an increase in OCI if reversed.
See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding regulatory matters, including the regulatory assets and liabilities of the Registrants.
For each regulatory jurisdiction in which they conduct business, the Registrants assess whether the regulatory assets and liabilities continue to meet the criteria for probable future recovery or refund at each balance sheet date and when regulatory events occur. This assessment includes consideration of recent rate orders, historical regulatory treatment for similar costs in each Registrant's jurisdictions, and factors such as changes in applicable regulatory and political environments. If the assessments and estimates made by the Registrants for regulatory assets and regulatory liabilities are ultimately different than actual regulatory outcomes, the impact in their consolidated financial statements could be material.
Refer to the revenue recognition discussion below for additional information on the annual revenue reconciliations associated with ICC-approved electric distribution and energy efficiency formula rates for ComEd, and FERC transmission formula rate tariffs for the Utility Registrants.
Derivative Financial Instruments (All Registrants)
The Registrants use derivative instruments to manage commodity price risk and interest rate risk related to ongoing business operations. See Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information.
Determining whether a contract qualifies as a derivative requires that management exercise significant judgment, including assessing market liquidity as well as determining whether a contract has one or more underlying and one or more notional quantities.
All derivatives are recognized on the balance sheet at their fair value, except for certain derivatives that qualify for, and are elected under, NPNS. For derivatives that qualify and are designated as cash flow hedges, changes in fair value each period are initially recorded in AOCI and recognized in earnings when the hedged transaction
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affects earnings. For derivatives intended to serve as economic hedges, which are not designated for hedge accounting, changes in fair value each period are recognized in earnings on the Consolidated Statement of Operations and Comprehensive Income or are recorded as a regulatory asset or liability when there is an ability to recover or return the associated costs or benefits in accordance with regulatory requirements.
NPNS. Contracts that are designated as NPNS are not required to be recorded at fair value, but rather on an accrual basis of accounting. Determining whether a contract qualifies for NPNS requires judgment on whether the contract will physically deliver and requires that management ensure compliance with all the associated qualification and documentation requirements. For all NPNS derivative instruments, accounts payable is recorded when derivatives settle and expense is recognized in earnings as the underlying physical commodity is consumed. Contracts that qualify for NPNS are those for which physical delivery is probable, quantities are expected to be used or sold in the normal course of business over a reasonable period, and the contract is not financially settled on a net basis. The contracts that ComEd has entered into with suppliers as part of ComEd’s energy procurement process, PECO’s full requirement contracts under the PAPUC-approved DSP program, most of PECO’s natural gas supply agreements, all of BGE’s full requirement contracts and natural gas supply agreements that are derivatives, and certain Pepco, DPL, and ACE full requirement contracts qualify for and are accounted for under NPNS.
Commodity Contracts. The Registrants make estimates and assumptions concerning future commodity prices, interest rates, and the timing of future transactions and their probable cash flows in deciding whether to enter derivative transactions, and in determining the initial accounting treatment for derivative transactions. The Registrants categorize these derivatives under a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value.
Derivative contracts can be traded in both exchange-based and non-exchange-based markets. Exchange-based derivatives that are valued using unadjusted quoted prices in active markets are generally categorized in Level 1 in the fair value hierarchy. Certain derivative pricing is verified using indicative price quotations available through brokers or over-the-counter, online exchanges. For derivatives that trade in liquid markets, the model inputs are generally observable. Such instruments are categorized in Level 2. For derivatives that trade in less liquid markets with limited pricing information, the model inputs generally would include both observable and unobservable inputs and are categorized in Level 3.
The Registrants consider nonperformance risk, including credit risk in the valuation of derivative contracts, and both historical and current market data in the assessment of nonperformance risk. The impacts of nonperformance and credit risk to date have generally not been material to the Registrants’ financial statements.
Interest Rate Derivative Instruments. Exelon Corporate utilizes interest rate swaps to manage interest rate risk on existing and planned future debt issuances as well as potential fluctuations in Electric operating revenues at the corporate level in consolidation, which are directly correlated to yields on U.S. Treasury bonds under ComEd's distribution formula rate. The fair value of the swaps is calculated by discounting the future net cash flows to the present value based on the terms and conditions of the agreements and the forward interest rate curves. As these inputs are based on observable data and valuations of similar instruments, the interest rate derivatives are primarily categorized in Level 2 in the fair value hierarchy.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK and Note 17 — Fair Value of Financial Assets and Liabilities and Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information regarding the Registrants’ derivative instruments.
Income Taxes (All Registrants)
Significant management judgment is required in determining the Registrants’ provisions for income taxes, primarily due to the uncertainty related to tax positions taken, as well as deferred tax assets and liabilities and valuation allowances. The Registrants account for uncertain income tax positions using a benefit recognition model with a two-step approach including a more-likely-than-not recognition threshold and a measurement approach based on the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement. Management evaluates each position based solely on the technical merits and facts and circumstances of the position, assuming the position will be examined by a taxing authority having full knowledge of all relevant information. Significant judgment is required to determine whether the recognition threshold has
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been met and, if so, the appropriate amount of tax benefits to be recorded in the Registrants’ consolidated financial statements.
The Registrants evaluate quarterly the probability of realizing deferred tax assets by reviewing a forecast of future taxable income and their intent and ability to implement tax planning strategies, if necessary, to realize deferred tax assets. The Registrants also assess negative evidence, such as the expiration of historical operating loss or tax credit carryforwards, that could indicate the Registrant's inability to realize its deferred tax assets. Based on the combined assessment, the Registrants record valuation allowances for deferred tax assets when it is more-likely-than-not such benefit will not be realized in future periods.
Actual income taxes could vary from estimated amounts due to the future impacts of various items, including future changes in income tax laws, the Registrants’ forecasted financial condition and results of operations, failure to successfully implement tax planning strategies, as well as results of audits and examinations of filed tax returns by taxing authorities. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Accounting for Loss Contingencies (All Registrants)
In the preparation of their financial statements, the Registrants make judgments regarding the future outcome of contingent events and record liabilities for loss contingencies that are probable and can be reasonably estimated based upon available information. The amount recorded may differ from the actual expense incurred when the uncertainty is resolved. Such difference could have a significant impact in the Registrants' consolidated financial statements.
Environmental Costs. Environmental investigation and remediation liabilities are based upon estimates with respect to the number of sites for which the Registrants will be responsible, the scope and cost of work to be performed at each site, the portion of costs that will be shared with other parties, the timing of the remediation work, regulations, and the requirements of local governmental authorities. Annual studies and/or reviews are conducted at ComEd, PECO, BGE, and DPL to determine future remediation requirements for MGP sites and estimates are adjusted accordingly. In addition, periodic reviews are performed at each of the Registrants to assess the adequacy of other environmental reserves. These matters, if resolved in a manner different from the estimate, could have a significant impact in the Registrants’ consolidated financial statements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information.
Other, Including Personal Injury Claims. The Registrants are self-insured for general liability, automotive liability, workers’ compensation, and personal injury claims to the extent that losses are within policy deductibles or exceed the amount of insurance maintained. The Registrants have reserves for both open claims asserted, and an estimate of claims incurred but not reported (IBNR). The IBNR reserve is estimated based on actuarial assumptions and analysis and is updated annually. Future events, such as the number of new claims to be filed each year, the average cost of disposing of claims, as well as the numerous uncertainties surrounding litigation and possible state and national legislative measures could cause the actual costs to be higher or lower than estimated. Accordingly, these claims, if resolved in a manner different from the estimate, could have a material impact to the Registrants’ consolidated financial statements.
Revenues (All Registrants)
Sources of Revenue and Determination of Accounting Treatment. The Registrants earn revenues from the sale and delivery of power and natural gas in regulated markets. The accounting treatment for revenue recognition is based on the nature of the underlying transaction and applicable authoritative guidance. The Registrants primarily apply the Revenue from Contracts with Customers, and Alternative Revenue Program accounting guidance to recognize revenues as discussed in more detail below.
Revenue from Contracts with Customers. The Registrants recognize revenues in the period in which the performance obligations within contracts with customers are satisfied, which generally occurs when power and natural gas are physically delivered to the customer. Transactions of the Registrants within the scope of Revenue from Contracts with Customers generally include sales to utility customers under regulated service tariffs.
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The determination of the Registrants' power and natural gas sales to individual customers is based on systematic readings of customer meters, generally monthly. At the end of each month, amounts of energy delivered to customers since the date of the last meter reading are estimated, and corresponding unbilled revenue is recorded. The measurement of unbilled revenue is affected by the following factors: daily customer usage measured by generation or gas throughput volume, customer usage by class, losses of energy during delivery to customers and applicable customer rates. Increases or decreases in volumes delivered to the Registrant’s customers and favorable or unfavorable rate mix due to changes in usage patterns in customer classes in the period could be significant to the calculation of unbilled revenue. In addition, revenues may fluctuate monthly as a result of customers electing to use an alternative supplier, since unbilled commodity revenues are not recorded for these customers. Changes in the timing of meter reading schedules and the number and type of customers scheduled for each meter reading date also impact the measurement of unbilled revenue; however, total operating revenues would remain materially unchanged. See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for additional information.
Alternative Revenue Program Accounting. Certain of the Registrants’ ratemaking mechanisms qualify as ARPs if they (i) are established by a regulatory order and allow for automatic adjustment to future rates, (ii) provide for additional revenues (above those amounts currently reflected in the price of utility service) that are objectively determinable and probable of recovery, and (iii) allow for the collection of those additional revenues within 24 months following the end of the period in which they were recognized. For mechanisms that meet these criteria, which include the Registrants’ formula rate mechanisms and revenue decoupling mechanisms, the Registrants adjust revenue and record an offsetting regulatory asset or liability once the condition or event allowing additional billing or refund has occurred. The ARP revenues presented in the Registrants’ Consolidated Statements of Operations and Comprehensive Income include both: (i) the recognition of “originating” ARP revenues (when the regulator-specified condition or event allowing for additional billing or refund has occurred) and (ii) an equal and offsetting reversal of the “originating” ARP revenues as those amounts are reflected in the price of utility service and recognized as Revenue from Contracts with Customers.
ComEd records ARP revenue for its best estimate of the electric distribution, energy efficiency, distributed generation rebates, and transmission revenue impacts resulting from future changes in rates that ComEd believes are probable of approval by the ICC and FERC in accordance with its formula rate mechanisms. BGE, Pepco, DPL, and ACE record ARP revenue for their best estimate of the electric and natural gas distribution revenue impacts resulting from future changes in rates that they believe are probable of approval by the MDPSC, DCPSC, and/or NJBPU in accordance with their revenue decoupling mechanisms. PECO, BGE, Pepco, DPL, and ACE record ARP revenue for their best estimate of the transmission revenue impacts resulting from future changes in rates that they believe are probable of approval by FERC in accordance with their formula rate mechanisms. Estimates of the current year revenue requirement are based on actual and/or forecasted costs and investments in rate base for the period and the rates of return on common equity and associated regulatory capital structure allowed under the applicable tariff. The estimated reconciliation can be affected by, among other things, variances in costs incurred, investments made, allowed ROE, and actions by regulators or courts.
See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Allowance for Credit Losses on Customer Accounts Receivable (All Registrants)
The Registrants estimate the allowance for credit losses on customer receivables by applying loss rates developed specifically for each company based on historical loss experience, current conditions, and forward-looking risk factors to the outstanding receivable balance by customer risk segment. Risk segments represent a group of customers with similar forward-looking credit quality indicators and risk factors that are comprised based on various attributes, including delinquency of their balances and payment history and represent expected, future customer behavior. Loss rates applied to the accounts receivable balances are based on a historical average of charge-offs as a percentage of accounts receivable in each risk segment. The Registrants' customer accounts are generally considered delinquent if the amount billed is not received by the time the next bill is issued, which normally occurs on a monthly basis. The Registrants' customer accounts are written off consistent with approved regulatory requirements. The Registrants' allowances for credit losses will continue to be affected by changes in volume, prices, and economic conditions as well as changes in ICC, PAPUC, MDPSC, DCPSC, DEPSC, and NJBPU regulations.

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ComEd
Results of Operations by Registrant
Results of Operations—ComEd
20222021(Unfavorable) Favorable Variance
Operating revenues$5,761 $6,406 $(645)
Operating expenses
Purchased power1,109 2,271 1,162 
Operating and maintenance1,412 1,355 (57)
Depreciation and amortization1,323 1,205 (118)
Taxes other than income taxes374 320 (54)
Total operating expenses4,218 5,151 933 
Gain on sales of assets(2)— (2)
Operating income1,541 1,255 286 
Other income and (deductions)
Interest expense, net(414)(389)(25)
Other, net54 48 
Total other income and (deductions)(360)(341)(19)
Income before income taxes1,181 914 267 
Income taxes264 172 (92)
Net income$917 $742 $175 
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $175 million primarily due to increases in electric distribution and energy efficiency formula rate earnings (reflecting higher allowed ROE due to an increase in U.S. Treasury rates and the impacts of higher rate base).
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
Distribution$310 
Transmission65 
Energy efficiency65 
Other12
452 
Regulatory required programs(1,097)
Total decrease
$(645)

Revenue Decoupling. The demand for electricity is affected by weather and customer usage. Operating revenues are not impacted by abnormal weather, usage per customer, or number of customers as a result of revenue decoupling mechanisms implemented pursuant to FEJA.
Distribution Revenue. EIMA and FEJA provide for a performance-based formula rate, which requires an annual reconciliation of the revenue requirement in effect to the actual costs that the ICC determines are prudently and reasonably incurred in a given year. Electric distribution revenue varies from year to year based upon fluctuations in the underlying costs (e.g., severe weather and storm restoration), investments being recovered, and allowed ROE. Electric distribution revenue increased during the year ended December 31, 2022, compared to the same period in 2021, due to higher allowed ROE due to an increase in U.S. Treasury rates, the impact of a higher rate base, and higher fully recoverable costs.
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ComEd
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs, capital investments being recovered, and the highest daily peak load, which is updated annually in January based on the prior calendar year. Generally, increases/decreases in the highest daily peak load will result in higher/lower transmission revenue. Transmission revenues increased during the year ended December 31, 2022, compared to the same period in 2021, primarily due to the impact of a higher rate base and higher fully recoverable costs.
Energy Efficiency Revenue. FEJA provides for a performance-based formula rate, which requires an annual reconciliation of the revenue requirement in effect to the actual costs that the ICC determines are prudently and reasonably incurred in a given year. Under FEJA, energy efficiency revenue varies from year to year based upon fluctuations in the underlying costs, investments being recovered, and allowed ROE. Energy efficiency revenue increased during the year ended December 31, 2022, compared to the same period in 2021, primarily due to higher allowed ROE due to an increase in U.S. Treasury rates, the impact of a higher rate base, and increased regulatory asset amortization, which is fully recoverable.
Other Revenue primarily includes assistance provided to other utilities through mutual assistance programs. Other revenue increased for the year ended December 31, 2022, compared to the same period in 2021, which primarily reflects mutual assistance revenues associated with storm restoration efforts.
Regulatory Required Programs represents revenues collected under approved riders to recover costs incurred for regulatory programs such as recoveries under the credit loss expense tariff, environmental costs associated with MGP sites, ETAC, and costs related to electricity, ZEC, CMC, and REC procurement. See Note 3 - Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding CMCs. ETAC is a retail customer surcharge collected by electric utilities operating in Illinois established by CEJA and remitted to an Illinois state agency for programs to support clean energy jobs and training. The riders are designed to provide full and current cost recovery. The costs of these programs are included in Purchased power expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries as ComEd remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, ComEd either acts as the billing agent or the competitive supplier separately bills its own customers, and therefore does not record Operating revenues or Purchased power expense related to the electricity. For customers that choose to purchase electric generation from ComEd, ComEd is permitted to recover the electricity, ZEC, CMC, and REC procurement costs without mark-up and therefore records equal and offsetting amounts in Operating revenues and Purchased power expense related to the electricity, ZECs, CMCs, and RECs.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of ComEd's revenue disaggregation.
The decrease of $1,162 million for the year ended December 31, 2022, compared to the same period in 2021, in Purchased power expense is primarily due to the CMCs from the participating nuclear-powered generating facilities. This favorability is offset by a decrease in Operating revenues as part of regulatory required programs. See Note 3 - Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding CMCs.
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ComEd
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Labor, other benefits, contracting, and materials$57 
Storm-related costs13 
BSC Costs13 
Pension and non-pension postretirement benefits expense(30)
Other
58 
Regulatory required programs(a)
(1)
Total increase$57 
__________
(a)ComEd is allowed to recover from or refund to customers the difference between its annual credit loss expense and the amounts collected in rates annually through a rider mechanism.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$63 
Regulatory asset amortization(b)
55 
Total increase$118 
__________
(a)Reflects ongoing capital expenditures.
(b)Includes amortization of ComEd's energy efficiency formula rate regulatory asset.

Taxes other than income taxes increased by $54 million for the year December 31, 2022, compared to the same period in 2021, primarily due to taxes related to ETAC, which is recovered through Operating revenues.
Interest expense, net increased $25 million for the year ended December 31, 2022, compared to the same period in 2021, primarily due to the issuance of debt in 2021 and 2022.
Effective income tax rateswere 22.4%and 18.8% for the years ended December 31, 2022and2021, respectively. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.
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PECO
Results of Operations—PECO
20222021Favorable (Unfavorable) Variance
Operating revenues$3,903 $3,198 $705 
Operating expenses
Purchased power and fuel1,535 1,081 (454)
Operating and maintenance992 934 (58)
Depreciation and amortization373 348 (25)
Taxes other than income taxes202 184 (18)
Total operating expenses3,102 2,547 (555)
Operating income801 651 150 
Other income and (deductions)
Interest expense, net(177)(161)(16)
Other, net31 26 
Total other income and (deductions)(146)(135)(11)
Income before income taxes655 516 139 
Income taxes79 12 (67)
Net income$576 $504 $72 
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $72 million, primarily due to increases in electric and gas distribution rates and a decrease in storm costs, partially offset by the one-time non-cash impacts associated with the Pennsylvania corporate income tax legislation passed in July 2022, and increases in depreciation expense, credit loss expense, and interest expense.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
ElectricGasTotal
Weather$32 $10 $42 
Volume(21)(13)
Pricing138 25 163 
Transmission15 — 15 
Other15 21 
179 49 228 
Regulatory required programs327 150 477 
Total increase$506 $199 $705 
Weather. The demand for electricity and natural gas is affected by weather conditions. With respect to the electric business, very warm weather in summer months and, with respect to the electric and natural gas businesses, very cold weather in winter months are referred to as “favorable weather conditions” because these weather conditions result in increased deliveries of electricity and natural gas. Conversely, mild weather reduces demand. For the year ended December 31, 2022 compared to the same period in 2021, Operating revenues related to weather increased due to the impact of favorable weather conditions in PECO's service territory.
Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 30-year period in PECO’s service territory. The changes in heating and cooling degree days in PECO’s service territory for the years ended December 31, 2022 compared to the same period in 2021 and normal weather consisted of the following:
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PECO
 For the Years Ended December 31, % Change
PECO Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days4,135 3,946 4,408 4.8 %(6.2)%
Cooling Degree-Days1,743 1,586 1,443 9.9 %20.8 %
Volume. Electric volume, exclusive of the effects of weather, for the year ended December 31, 2022 compared to the same period in 2021, decreased due to unfavorable load change. Natural gas volume for the year ended December 31, 2022 compared to the same period in 2021, increased due to favorable load change.
Electric Retail Deliveries to Customers (in GWhs)20222021% Change
Weather - Normal % Change(b)
Residential14,379 14,262 0.8 %(1.8)%
Small commercial & industrial7,701 7,597 1.4 %0.4 %
Large commercial & industrial14,046 14,003 0.3 %— %
Public authorities & electric railroads638 559 14.1 %14.1 %
Total electric retail deliveries(a)
36,764 36,421 0.9 %(0.4)%
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from PECO and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 30-year average.

 As of December 31,
Number of Electric Customers20222021
Residential1,525,635 1,517,806 
Small commercial & industrial155,576 155,308 
Large commercial & industrial3,121 3,107 
Public authorities & electric railroads10,393 10,306 
Total1,694,725 1,686,527 

Natural Gas Deliveries to customers (in mmcf)20222021% Change
Weather - Normal % Change(b)
Residential42,135 39,580 6.5 %3.0 %
Small commercial & industrial23,449 21,361 9.8 %6.0 %
Large commercial & industrial31 34 (8.8)%12.3 %
Transportation25,011 25,081 (0.3)%(1.8)%
Total natural gas deliveries(a)
90,626 86,056 5.3 %2.4 %
__________
(a)Reflects delivery volumes from customers purchasing natural gas directly from PECO and customers purchasing electricity from a competitive natural gas supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 30-year average.

 As of December 31,
Number of Gas Customers20222021
Residential502,944 497,873 
Small commercial & industrial44,957 44,815 
Large commercial & industrial
Transportation655 670 
Total548,565 543,364 
Pricing for the year ended December 31, 2022 compared to the same period in 2021 increased primarily due to increases in electric and gas distribution rates charged to customers.
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PECO
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered.
Other Revenue primarily includes revenue related to late payment charges. Other revenues for the year ended December 31, 2022 compared to the same period in 2021, increased primarily due to revenue related to late payment charges.
Regulatory Required Programs represents revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency, PGC, and the GSA. The riders are designed to provide full and current cost recovery as well as a return. The costs of these programs are included in Purchased power and fuel expense, Operating and maintenance expense, Depreciation and amortization expense, and Income taxes. Customers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. Customer choice programs do not impact the volume of deliveries as PECO remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation or natural gas from competitive suppliers, PECO either acts as the billing agent or the competitive supplier separately bills its own customers and therefore PECO does not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from PECO, PECO is permitted to recover the electricity, natural gas, and REC procurement costs without mark-up and therefore records equal and offsetting amounts in Operating revenues and Purchased power and fuel expense related to the electricity, natural gas, and RECs.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of PECO's revenue disaggregation.
The increase of $454 million for the year ended December 31, 2022, compared to the same period in 2021, in Purchased power and fuel expense is fully offset in Operating revenues as part of regulatory required programs.
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
 (Decrease) Increase
Storm-related costs$(34)
Pension and non-pension postretirement benefits expense(9)
Credit loss expense
Labor, other benefits, contracting, and materials20 
BSC costs29 
Other(a)
30 
42 
Regulatory Required Programs16 
Total increase$58 
__________
(a) Primarily reflects an increase in charitable contributions.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
 Increase
Depreciation and amortization(a)
$24 
Regulatory asset amortization
Total increase$25 
__________
(a)Depreciation and amortization expense increased primarily due to ongoing capital expenditures.
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PECO
Taxes other than income taxes increased by $18 million for the year ended December 31, 2022, compared to the same period in 2021, primarily due to higher Pennsylvania gross receipts tax, which is offset in Operating revenues, and offset by lower Pennsylvania use tax.
Interest expense, net increased $16 million for the year ended December 31, 2022, compared to the same period in 2021, primarily due to the issuance of debt in 2021 and 2022 and increases in interest rates.
Effective income tax rates were 12.1% and 2.3% for the years ended December 31, 2022 and 2021, respectively. The change in effective tax rate is primarily related to the one-time non-cash impacts associated with the Pennsylvania corporate income tax legislation passed in July 2022. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.
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BGE
Results of Operations—BGE
20222021Favorable (Unfavorable) Variance
Operating revenues$3,895 $3,341 $554 
Operating expenses
Purchased power and fuel1,567 1,175 (392)
Operating and maintenance877 811 (66)
Depreciation and amortization630 591 (39)
Taxes other than income taxes302 283 (19)
Total operating expenses3,376 2,860 (516)
Operating income519 481 38 
Other income and (deductions)
Interest expense, net(152)(138)(14)
Other, net21 30 (9)
Total other income and (deductions)(131)(108)(23)
Income before income taxes388 373 15 
Income taxes(35)(43)
Net income$380 $408 $(28)
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income decreased $28 million primarily due to an asset impairment in 2022 and an increase in depreciation expense, credit loss expense, and interest expense, partially offset by favorable impacts of the multi-year plans and a decrease in storm costs. See Note 11 — Asset Impairments for additional information on the asset impairment.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase
ElectricGasTotal
Distribution$70 $27 $97 
Transmission14 — 14 
Other10 10 20 
94 37 131 
Regulatory required programs272 151 423 
Total increase$366 $188 $554 
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BGE
Revenue Decoupling. The demand for electricity and natural gas is affected by weather and customer usage. However, Operating revenues are not impacted by abnormal weather or usage per customer as a result of a monthly rate adjustment that provides for fixed distribution revenue per customer by customer class. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on revenue decoupling for BGE.
As of December 31,
Number of Electric Customers20222021
Residential1,204,429 1,195,929 
Small commercial & industrial115,524 115,049 
Large commercial & industrial12,839 12,637 
Public authorities & electric railroads266 268 
Total1,333,058 1,323,883 
As of December 31,
Number of Gas Customers20222021
Residential655,373 651,589 
Small commercial & industrial38,207 38,300 
Large commercial & industrial6,233 6,179 
Total699,813 696,068 
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021, due to favorable impacts of the multi-year plans.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to increases in underlying costs and capital investments.
Other Revenue includes revenue related to late payment charges, mutual assistance, off-system sales, and service application fees. Other revenue increased for the year ended December 31, 2022 compared to the same period in 2021, primarily due to an increase in late fees charged to customers.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as conservation, demand response, STRIDE, and the POLR mechanism. The riders are designed to provide full and current cost recovery, as well as a return in certain instances. The costs of these programs are included in Purchased power and fuel expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. Customer choice programs do not impact the volume of deliveries as BGE remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation or natural gas from competitive suppliers, BGE acts as the billing agent and therefore does not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from BGE, BGE is permitted to recover the electricity and natural gas procurement costs from customers and therefore records the amounts related to the electricity and/or natural gas in Operating revenues and Purchased power and fuel expense. BGE recovers electricity and natural gas procurement costs from customers with a slight mark-up.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of BGE's revenue disaggregation.
The increase of $392 million for the year ended December 31, 2022 compared to the same period in 2021 in Purchased power and fuel expense is fully offset in Operating revenues as part of regulatory required programs.
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BGE
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Asset impairment(a)
$48 
BSC costs14 
Credit loss expense
Labor, other benefits, contracting, and materials
Storm-related costs(11)
Pension and non-pension postretirement benefits expense(12)
Other12 
62 
Regulatory required programs
Total increase$66 
__________
(a)See Note 11 — Asset Impairments for additional information on the asset impairment.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$35 
Regulatory required programs
Regulatory asset amortization
Total increase$39 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.
Taxes other than income taxes increased by $19 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to increased property taxes.
Interest expense, net increased $14 million for the year ended December 31, 2022 compared to the same period in 2021, due to the issuance of debt in 2021 and 2022 and increases in interest rates.
Effective income tax rates were 2.1% and (9.4)% for the years ended December 31, 2022 and 2021, respectively. The change is primarily due to decreases in the multi-year plans' accelerated income tax benefits in 2022 compared to 2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on both the three-year electric and natural gas distribution multi-year plans and Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.
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PHI
Results of Operations—PHI
PHI’s Results of Operations include the results of its three reportable segments, Pepco, DPL, and ACE. PHI also has a business services subsidiary, PHISCO, which provides a variety of support services and the costs are directly charged or allocated to the applicable subsidiaries. Additionally, the results of PHI's corporate operations include interest costs from various financing activities. All material intercompany accounts and transactions have been eliminated in consolidation. The following table sets forth PHI's GAAP consolidated Net income, by Registrant, for the year ended December 31, 2022 compared to the same period in 2021. See the Results of Operations for Pepco, DPL, and ACE for additional information.
20222021Favorable (Unfavorable) Variance
PHI$608 $561 $47 
Pepco305 296 
DPL169 128 41 
ACE148 146 
Other(a)
(14)(9)(5)
__________
(a)Primarily includes eliminating and consolidating adjustments, PHI's corporate operations, shared service entities, and other financing and investing activities.
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021. Net income increased by $47 million primarily due to favorable impacts as a result of Pepco's Maryland and District of Columbia multi-year plans, higher distribution rates at DPL and ACE, and the absence of the recognition of a valuation allowance against a deferred tax asset due to a change in Delaware tax law in 2021 at DPL, partially offset by an increase in depreciation expense, interest expense, credit loss expense and storm costs at Pepco and DPL.
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Pepco
Results of Operations—Pepco
20222021Favorable (Unfavorable) Variance
Operating revenues$2,531 $2,274 $257 
Operating expenses
    Purchased power834 624 (210)
Operating and maintenance507 471 (36)
Depreciation and amortization417 403 (14)
Taxes other than income taxes382 373 (9)
Total operating expenses2,140 1,871 (269)
Operating income391 403 (12)
Other income and (deductions)
Interest expense, net(150)(140)(10)
Other, net55 48 
Total other income and (deductions)(95)(92)(3)
Income before income taxes296 311 (15)
Income taxes(9)15 24 
Net income$305 $296 $
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $9 million primarily due to favorable impacts of the Maryland and District of Columbia multi-year plans, partially offset by an increase in credit loss expense, depreciation expense, interest expense and storm costs.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
Distribution$44 
Transmission
Other(3)
42 
Regulatory required programs215 
Total increase$257 
Revenue Decoupling. The demand for electricity is affected by weather and customer usage. However, Operating revenues from electric distribution in both Maryland and the District of Columbia are not impacted by abnormal weather or usage per customer as a result of a BSA that provides for a fixed distribution charge per customer by customer class. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on revenue decoupling for Pepco Maryland and District of Columbia.
As of December 31,
Number of Electric Customers20222021
Residential856,037 841,831 
Small commercial & industrial54,339 54,216 
Large commercial & industrial22,841 22,568 
Public authorities & electric railroads197 181 
Total933,414 918,796 
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Pepco
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021, primarily due to favorable impacts of the Maryland and District of Columbia multi-year plans.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue remained relatively consistent for the year ended December 31, 2022 compared to the same period in 2021.
Other Revenue includes rental revenue, revenue related to late payment charges, mutual assistance revenues, and recoveries of other taxes.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs, DC PLUG, and SOS procurement and administrative costs. The riders are designed to provide full and current cost recovery as well as a return in certain instances. The costs of these programs are included in Purchased power expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries, as Pepco remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, Pepco acts as the billing agent and therefore, Pepco does not record Operating revenues or Purchased power expense related to the electricity. For customers that choose to purchase electric generation from Pepco, Pepco is permitted to recover the electricity and REC procurement costs from customers and therefore records the amounts related to the electricity and RECs in Operating revenues and Purchased power expense. Pepco recovers electricity and REC procurement costs from customers with a slight mark-up.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of Pepco's revenue disaggregation.
The increase of $210 million for the year ended December 31, 2022 compared to the same period in 2021, in Purchased power expense is fully offset in Operating revenues as part of regulatory required programs.

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Pepco
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Credit loss expense$17 
BSC and PHISCO costs13 
Storm-related costs
Labor, other benefits, contracting, and materials(2)
Other(6)
30 
Regulatory required programs
Total increase$36 
The changes in Depreciation and amortizationexpense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Depreciation and amortization(a)
$14 
Regulatory asset amortization(3)
Regulatory required programs
Total increase$14 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.
Taxes other than income taxes increased $9 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to an increase in property taxes and gross receipts taxes.
Interest expense, net increased $10 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to the issuance of debt in 2021 and 2022 and increases in interest rates.
Other, net increased $7 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to higher AFUDC equity.
Effective income tax rates were (3.0)% and 4.8% for the years ended December 31, 2022 and 2021, respectively. The change is primarily due to the acceleration of certain income tax benefits as a result of the Maryland and District of Columbia multi-year plans. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on the three-year electric distribution multi-year plans and Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.

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DPL
Results of Operations—DPL
20222021Favorable (Unfavorable) Variance
Operating revenues$1,595 $1,380 $215 
Operating expenses
Purchased power and fuel706 539 (167)
Operating and maintenance349 345 (4)
Depreciation and amortization232 210 (22)
Taxes other than income taxes72 67 (5)
Total operating expenses1,359 1,161 (198)
Operating income236 219 17 
Other income and (deductions)
Interest expense, net(66)(61)(5)
Other, net13 12 
Total other income and (deductions)(53)(49)(4)
Income before income taxes183 170 13 
Income taxes14 42 28 
Net income$169 $128 $41 
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $41 million primarily due to higher distribution rates and the absence of the recognition of a valuation allowance against a deferred tax asset due to a change in Delaware tax law in 2021, partially offset by an increase in depreciation expense, interest expense, storm costs, and credit loss expense.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
ElectricGasTotal
Weather$— $$
Volume
Distribution23 32 
Transmission— 
Other(2)— (2)
29 14 43 
Regulatory required programs116 56 172 
Total increase$145 $70 $215 
Revenue Decoupling. The demand for electricity is affected by weather and customer usage. However, Operating revenues from electric distribution in Maryland are not impacted by abnormal weather or usage per customer as a result of a BSA that provides for a fixed distribution charge per customer by customer class. While Operating revenues from electric distribution customers in Maryland are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on revenue decoupling for DPL Maryland.
Weather. The demand for electricity and natural gas in Delaware is affected by weather conditions. With respect to the electric business, very warm weather in summer months and, with respect to the electric and natural gas businesses, very cold weather in winter months are referred to as "favorable weather conditions” because these weather conditions result in increased deliveries of electricity and natural gas. Conversely, mild weather reduces demand. During the year ended December 31, 2022 compared to the same period in 2021, Operating revenues related to weather increased due to favorable weather conditions in DPL's Delaware natural gas service territory.
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Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 20-year period in DPL's Delaware electric service territory and a 30-year period in DPL's Delaware natural gas service territory. The changes in heating and cooling degree days in DPL’s Delaware service territory for the year ended December 31, 2022 compared to same period in 2021 and normal weather consisted of the following:
For the Years Ended December 31,% Change
Delaware Electric Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days4,428 4,239 4,593 4.5 %(3.6)%
Cooling Degree-Days1,382 1,380 1,272 0.1 %8.6 %
For the Years Ended December 31,% Change
Delaware Natural Gas Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days4,428 4,239 4,676 4.5 %(5.3)%
Volume, exclusive of the effects of weather, increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to customer growth and usage.
Electric Retail Deliveries to Delaware Customers (in GWhs)20222021% Change
Weather - Normal % Change (b)
Residential3,242 3,214 0.9 %(0.1)%
Small commercial & industrial1,443 1,452 (0.6)%(1.0)%
Large commercial & industrial3,162 3,149 0.4 %0.4 %
Public authorities & electric railroads33 34 (2.9)%(4.4)%
Total electric retail deliveries(a)
7,880 7,849 0.4 %(0.1)%
As of December 31,
Number of Total Electric Customers (Maryland and Delaware)20222021
Residential481,688 476,260 
Small commercial & industrial63,738 63,195 
Large commercial & industrial1,235 1,218 
Public authorities & electric railroads597 604 
Total547,258 541,277 
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from DPL and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 20-year average.
Natural Gas Retail Deliveries to Delaware Customers (in mmcf)20222021% Change
Weather - Normal % Change(b)
Residential8,709 7,914 10.0 %4.2 %
Small commercial & industrial4,176 3,747 11.4 %7.0 %
Large commercial & industrial1,697 1,679 1.1 %1.1 %
Transportation6,696 6,778 (1.2)%(2.3)%
Total natural gas deliveries(a)
21,278 20,118 5.8 %2.4 %

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As of December 31,
Number of Delaware Natural Gas Customers20222021
Residential129,502 128,121 
Small commercial & industrial10,144 10,027 
Large commercial & industrial17 20 
Transportation156 158 
Total139,819 138,326 
__________
(a)Reflects delivery volumes from customers purchasing natural gas directly from DPL and customers purchasing natural gas from a competitive natural gas supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 30-year average.
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to higher electric distribution rates in Maryland that became effective in March 2022, higher DSIC rates in Delaware that became effective in January and July 2022, and higher natural gas distribution rates in Delaware that became effective in August 2022.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to increases in underlying costs.
Other Revenue includes rental revenue, revenue related to late payment charges, mutual assistance revenues, and recoveries of other taxes.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs, DE Renewable Portfolio Standards, SOS procurement and administrative costs, and GCR costs. The riders are designed to provide full and current cost recovery as well as a return in certain instances. The costs of these programs are included in Purchased power and fuel expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. All customers have the choice to purchase electricity from competitive electric generation suppliers; however, only certain commercial and industrial customers have the choice to purchase natural gas from competitive natural gas suppliers. Customer choice programs do not impact the volume of deliveries as DPL remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation or natural gas from competitive suppliers, DPL either acts as the billing agent or the competitive supplier separately bills its own customers, and therefore does not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from DPL, DPL is permitted to recover the electricity, natural gas, and REC procurement costs from customers and therefore records the amounts related to the electricity, natural gas, and RECs in Operating revenues and Purchased power and fuel expense. DPL recovers electricity and REC procurement costs from customers with a slight mark-up, and natural gas costs without mark-up.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of DPL's revenue disaggregation.
The increase of $167 million for the year ended December 31, 2022 compared to the same period in 2021, in Purchased power and fuel expense is fully offset in Operating revenues as part of regulatory required programs.
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The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Credit loss expense$
Storm-related costs
BSC and PHISCO costs
Labor, other benefits, contracting, and materials(13)
Other(3)
(1)
Regulatory required programs
Total increase$
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Depreciation and amortization(a)
$23 
Regulatory asset amortization(3)
Regulatory required programs
Total increase$22 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.

Taxes other than income taxes increased by $5 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to an increase in property taxes and gross receipts taxes.
Interest expense, net increased $5 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to the issuance of debt in 2021 and 2022.
Effective income tax rates were 7.7%and24.7% for the years ended December 31, 2022and2021, respectively. The decrease for the year ended December 31, 2022 is primarily related to the absence of the recognition of a valuation allowance against a deferred tax asset due to a change in Delaware tax law in 2021. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the change in effective income tax rates.
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ACE
Results of Operations—ACE
20222021Favorable
(Unfavorable) Variance
Operating revenues$1,431 $1,388 $43 
Operating expenses
Purchased power624 694 70 
Operating and maintenance331 320 (11)
Depreciation and amortization261 179 (82)
Taxes other than income taxes(1)
Total operating expenses1,225 1,201 (24)
Operating income206 187 19 
Other income and (deductions)
Interest expense, net(66)(58)(8)
Other, net11 
Total other income and (deductions)(55)(54)(1)
Income before income taxes151 133 18 
Income taxes(13)(16)
Net income$148 $146 $
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021. Net income increased $2 million primarily due to increases in distribution rates, partially offset by an increase in depreciation expense, the absence of favorable weather and volume as a result of the CIP, and an increase in interest expense.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
(Decrease) Increase
Weather$(3)
Volume(11)
Distribution48 
Transmission
Other(1)
42 
Regulatory required programs
Total increase$43 
Revenue Decoupling. The demand for electricity is affected by weather and customer usage. However, Operating revenues from electric distribution in New Jersey are not impacted by abnormal weather or usage per customer as a result of the CIP which became effective, prospectively, in the third quarter of 2021. The CIP compares current distribution revenues by customer class to approved target revenues established in ACE’s most recent distribution base rate case. The CIP is calculated annually, and recovery is subject to certain conditions, including an earnings test and ceilings on customer rate increases. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information on the ACE CIP.
Weather. Prior to the third quarter of 2021, the demand for electricity was affected by weather conditions. With respect to the electric business, very warm weather in summer months and very cold weather in winter months are referred to as “favorable weather conditions” because these weather conditions result in increased deliveries of electricity. Conversely, mild weather reduces demand. During the year ended December 31, 2022 compared to the same period in 2021, Operating revenues related to weather decreased due to the absence of favorable impacts in the first and second quarter of 2022 as a result of the CIP.
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ACE
Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 20-year period in ACE’s service territory. The changes in heating and cooling degree days in ACE’s service territory for the year ended December 31, 2022 compared to same period in 2021 and normal weather consisted of the following:
For the Years Ended December 31,Normal% Change
Heating and Cooling Degree-Days202220212022 vs. 20212022 vs. Normal
Heating Degree-Days4,629 4,256 4,589 8.8 %0.9 %
Cooling Degree-Days1,243 1,284 1,210 (3.2)%2.7 %
Volume,exclusive of the effects of weather, decreased for the year ended December 31, 2022 compared to the same period in 2021, primarily due to the absence of favorable impacts in the first and second quarter of 2022 as a result of the CIP.
Electric Retail Deliveries to Customers (in GWhs)20222021% Change
Weather - Normal % Change(b)
Residential4,131 4,220 (2.1)%(2.4)%
Small commercial & industrial1,499 1,409 6.4 %6.2 %
Large commercial & industrial3,103 3,146 (1.4)%(1.5)%
Public authorities & electric railroads47 46 2.2 %1.8 %
Total electric retail deliveries(a)
8,780 8,821 (0.5)%(0.7)%

As of December 31,
Number of Electric Customers20222021
Residential502,247 499,628 
Small commercial & industrial62,246 61,900 
Large commercial & industrial3,051 3,156 
Public authorities & electric railroads734 717 
Total568,278 565,401 
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from ACE and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 20-year average.
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021 due to higher distribution rates that became effective in January 2022.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to increases in capital investment and underlying costs.
Other Revenue includes rental revenue, service connection fees, and mutual assistance revenues.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs, Societal Benefits Charge, Transition Bonds, and BGS procurement and administrative costs. The riders are designed to provide full and current cost recovery as well as a return in certain instances. The costs of these programs are included in Purchased power expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries, as ACE remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, ACE acts as the
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ACE
billing agent and therefore, ACE does not record Operating revenues or Purchased power expense related to the electricity. For customers that choose to purchase electric generation from ACE, ACE is permitted to recover the electricity, ZEC, and REC procurement costs without mark-up and therefore records equal and offsetting amounts in Operating revenues and Purchased power expense related to the electricity, ZECs, and RECs.
See Note 5 - Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of ACE's revenue disaggregation.
The decrease of $70 million for the year ended December 31, 2022 compared to same period in 2021, in Purchased power expense is fully offset in Operating revenues as part of regulatory required programs.
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
(Decrease) Increase
Labor, other benefits, contracting and materials$(5)
Storm-related costs
BSC and PHISCO costs
Other
Regulatory required programs(a)
Total increase$11 
__________
(a)ACE is allowed to recover from or refund to customers the difference between its annual credit loss expense and the amounts collected in rates annually through the Societal Benefits Charge.
The changes in Depreciation and amortizationexpense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$18 
Regulatory asset amortization
Regulatory required programs(b)
62 
Total increase$82 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.
(b)Regulatory required programs increased primarily due to the regulatory asset amortization of the PPA termination obligation which is fully offset in Operating revenues.
Interest expense, net increased $8 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to the issuance of debt in 2021 and 2022.
Other, net increased $7 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to higher AFUDC equity.
Effective income tax rates were 2.0% and (9.8)% for the years ended December 31, 2022 and 2021, respectively. The change is primarily related to the absence of impacts of the July 14, 2021 settlement, which allowed ACE to retain certain tax benefits in 2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding the July 14, 2021 settlement agreement and Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.


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Liquidity and Capital Resources
All results included throughout the liquidity and capital resources section are presented on a GAAP basis.
The Registrants’ operating and capital expenditures requirements are provided by internally generated cash flows from operations, as well as funds from external sources in the capital markets and through bank borrowings. The Registrants’ businesses are capital intensive and require considerable capital resources. Each of the Registrants annually evaluates its financing plan, dividend practices, and credit line sizing, focusing on maintaining its investment grade ratings while meeting its cash needs to fund capital requirements, including construction expenditures, retire debt, pay dividends, and fund pension and OPEB obligations. The Registrants spend a significant amount of cash on capital improvements and construction projects that have a long-term return on investment. Additionally, the Utility Registrants operate in rate-regulated environments in which the amount of new investment recovery may be delayed or limited and where such recovery takes place over an extended period of time. Each Registrant’s access to external financing on reasonable terms depends on its credit ratings and current overall capital market business conditions, including that of the utility industry in general. If these conditions deteriorate to the extent that the Registrants no longer have access to the capital markets at reasonable terms, the Registrants have access to credit facilities with aggregate bank commitments of $4.0 billion, as of December 31, 2022. The Registrants utilize their credit facilities to support their commercial paper programs, provide for other short-term borrowings, and to issue letters of credit. See the “Credit Matters and Cash Requirements” section below for additional information. The Registrants expect cash flows to be sufficient to meet operating expenses, financing costs, and capital expenditure requirements. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the Registrants’ debt and credit agreements.
Cash flows related to Generation have not been presented as discontinued operations and are included in the Consolidated Statements of Cash Flows for all periods presented. The Exelon Consolidated Statement of Cash Flows for the year ended December 31, 2022 includes one month of cash flows from Generation. The Exelon Consolidated Statement of Cash Flows for the year ended December 31, 2021 includes twelve months of cash flows from Generation. This is the primary reason for the changes in cash flows as shown in the tables unless otherwise noted below.
Cash Flows from Operating Activities
The Utility Registrants' cash flows from operating activities primarily result from the transmission and distribution of electricity and, in the case of PECO, BGE, and DPL, gas distribution services. The Utility Registrants' distribution services are provided to an established and diverse base of retail customers. The Utility Registrants' future cash flows may be affected by the economy, weather conditions, future legislative initiatives, future regulatory proceedings with respect to their rates or operations, and their ability to achieve operating cost reductions. Additionally, ComEd is required to purchase CMCs from participating nuclear-powered generating facilities for a five-year period, and all of its costs of doing so will be recovered through a new rider. The price to be paid for each CMC is established through a competitive bidding process. ComEd will provide net payments to, or collect net payments from, customers for the difference between customer credits issued and the credit to be received from the participating nuclear-powered generating facilities. ComEd’s cash flows are affected by the establishment of CMC prices and the timing of recovering costs through the CMC regulatory asset.
See Note 3 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information on regulatory and legal proceedings and proposed legislation.
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The following table provides a summary of the change in cash flows from operating activities for the years ended December 31, 2022 and 2021 by Registrant:
Increase (decrease) in cash flows from operating activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Net income$342 $175 $72 $(28)$47 $$41 $
Adjustments to reconcile net income to cash:
Non-cash operating activities(2,382)(176)124 173 259 93 25 141 
Option premiums paid, net299 — — — — — — — 
Collateral received (posted), net1,322 51 — 16 99 22 35 42 
Income taxes(331)— (25)(37)(18)(30)(13)11 
Pension and non-pension postretirement benefit contributions49 12 — 13 (30)— — (4)
Regulatory assets and liabilities, net(692)(645)(24)(8)(37)12 (43)
Changes in working capital and other noncurrent assets and liabilities3,251 185 (79)(98)(227)(97)(64)(60)
Increase (decrease) in cash flows from operating activities$1,858 $(398)$68 $31 $93 $$33 $89 
Changes in the Registrants' cash flows from operations were generally consistent with changes in each Registrant’s respective results of operations, as adjusted by changes in working capital in the normal course of business, except as discussed below. See above for additional information related to cash flows from Generation. Significant operating cash flow impacts for the Registrants and Generation for 2022 and 2021 were as follows:
See Note 22 —Supplemental Financial Information of the Combined Notes to Consolidated Financial Statements and the Registrants’ Consolidated Statements of Cash Flows for additional information on non-cash operating activities.
Changes in collateral depended upon whether Generation was in a net mark-to-market liability or asset position, and collateral may have been required to be posted with or collected from its counterparties. In addition, the collateral posting and collection requirements differed depending on whether the transactions were on an exchange or in the over-the-counter markets. Changes in collateral for the Utility Registrants are dependent upon the credit exposure of procurement contracts that may require suppliers to post collateral. The amount of cash collateral received from external counterparties increased due to rising energy prices. See Note 15 — Derivative Financial Instruments for additional information.
See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements and the Registrants' Consolidated Statements of Cash Flows for additional information on income taxes.
Changes in regulatory assets and liabilities, net, are due to the timing of cash payments for costs recoverable, or cash receipts for costs recovered, under our regulatory mechanisms differs from the recovery period of those costs. Included within the changes is energy efficiency spend for ComEd of $394 million and $343 million for the years ended December 31, 2022 and 2021, respectively. Also included within the changes is energy efficiency and demand response programs spend for BGE, Pepco, DPL, and ACE of $113 million, $71 million, $28 million, and $11 million for the year ended December 31, 2022, respectively, and $107 million, $72 million, $29 million, and $4 million for the year ended December 31, 2021, respectively. PECO had no energy efficiency and demand response programs spend recorded to a regulatory asset for the years ended December 31, 2022 and 2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Changes in working capital and other noncurrent assets and liabilities for the Utility Registrants and Exelon Corporate total $(304) million and for Generation total $3,555 million. The change for Generation primarily relates to the revolving accounts receivable financing arrangement. See the Collection of DPP discussion below for additional information. The change in working capital and other noncurrent assets and liabilities for Exelon Corporate and the Utility Registrants is dependent upon the normal course of operations for all Registrants. For ComEd, it is also
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dependent upon whether the participating nuclear-powered generating facilities owe money to ComEd as a result of the established pricing for CMCs. In 2022, the established pricing resulted in a receivable from nuclear-powered generating facilities, which is reported within the cash flows from operations as a change in accounts receivable. In future periods the established pricing could result in ComEd owing payments to nuclear-powered generating facilities, which would be reported within cash flows from operations as a change in accounts payable and accrued expenses.
Cash Flows from Investing Activities
The following table provides a summary of the change in cash flows from investing activities for the years ended December 31, 2022 and 2021 by Registrant:
Increase (decrease) in cash flows from investing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Capital expenditures$834 $(119)$(109)$(36)$11 $(31)$(1)$47 
Investment in NDT fund sales, net113 — — — — — — — 
Collection of DPP(3,733)— — — — — — — 
Proceeds from sales of assets and businesses(861)— — — — — — — 
Other investing activities(26)(1)(7)(1)— 
(Decrease) increase in cash flows from investing activities$(3,673)$(117)$(110)$(43)$15 $(27)$(2)$47 
Significant investing cash flow impacts for the Registrants for 2022 and 2021 were as follows:
Variances in capital expenditures are primarily due to the timing of cash expenditures for capital projects. See the "Credit Matters and Cash Requirements" section below for additional information on projected capital expenditure spending for the Utility Registrants. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for capital expenditures related to Generation prior to the separation.
Collection of DPP relates to Generation's revolving accounts receivable financing agreement which Generation entered into in April 2020. Generation received $400 million of additional funding related to the DPP in February and March of 2021.
Proceeds from sales of assets and businesses decreased primarily due to the sale of a significant portion of Generation's solar business and a biomass facility in 2021.
Cash Flows from Financing Activities
The following table provides a summary of the change in cash flows from financing activities for the years ended December 31, 2022 and 2021 by Registrant:
(Decrease) increase in cash flows from financing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Changes in short-term borrowings, net$(513)$900 $239 $148 $(154)$(16)$(37)$(101)
Long-term debt, net2,395 (50)(25)(50)50 40 — 10 
Changes in intercompany money pool— — 40 — 51 — — — 
Issuance of common stock563 — — — — — — — 
Dividends paid on common stock163 (71)(60)(8)— (195)143 
Acquisition of noncontrolling interest885 — — — — — — — 
Distributions to member— — — — (47)— — — 
Contributions from parent/member— (121)(140)29 104 221 27 (144)
Transfer of cash, restricted cash, and cash equivalents to Constellation(2,594)— — — — — — — 
Other financing activities(66)(6)(5)(5)(4)— — 
Increase (decrease) in cash flows from financing activities$833 $663 $48 $114 $(1)$46 $(6)$(92)
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Significant financing cash flow impacts for the Registrants for 2022 and 2021 were as follows:
Changes in short-term borrowings, net, are driven by repayments on and issuances of notes due in less than 365 days. Refer to Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on short-term borrowings for the Registrants. These changes also included repayments of $552 million in commercial paper and term loans by Generation prior to the separation.
Long-term debt, net, varies due to debt issuances and redemptions each year. Refer to the debt issuances and redemptions tables below for additional information for the Registrants.
Changes inintercompany money pool are driven by short-term borrowing needs. Refer below for more information regarding the intercompany money pool.
Issuance of common stock relates to the August 2022 underwritten public offering of Exelon common stock. See Note 19 — Shareholders' Equity of the Combined Notes to Consolidated Financial Statements for additional information.
Exelon’s ability to pay dividends on its common stock depends on the receipt of dividends paid by its operating subsidiaries. The payments of dividends to Exelon by its subsidiaries in turn depend on their results of operations and cash flows and other items affecting retained earnings. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information on dividend restrictions. See below for quarterly dividends declared.
Acquisition of noncontrolling interest relates to Generation's acquisition of CENG noncontrolling interest in 2021.
Refer to Note 2 — Discontinued Operations for the transfer of cash, restricted cash, and cash equivalents to Constellation related to the separation.
Other financing activities primarily consists of debt issuance costs. See debt issuances table below for additional information on the Registrants’ debt issuances.
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Debt Issuances and Redemptions
See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information of the Registrants’ long-term debt. Debt activity for 2022 and 2021 by Registrant was as follows:
During 2022, the following long-term debt was issued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonSMBC Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
$300Fund a cash payment to Constellation and for general corporate purposes.
ExelonU.S. Bank Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
300Fund a cash payment to Constellation and for general corporate purposes.
ExelonPNC Term Loan AgreementSOFR plus 0.65%
July 24, 2023(a)
250Fund a cash payment to Constellation and for general corporate purposes.
Exelon
Notes(b)
2.75%March 15, 2027650Repay existing indebtedness and for general corporate purposes.
Exelon
Notes(b)
3.35%March 15, 2032650Repay existing indebtedness and for general corporate purposes.
Exelon
Notes(b)
4.10%March 15, 2052700Repay existing indebtedness and for general corporate purposes.
ExelonLong-Term Software License Agreements2.30%December 1, 202517Procurement of software licenses
ExelonLong-Term Software License Agreements3.70%August 9, 20258Procurement of software licenses
ExelonSMBC Term Loan AgreementSOFR plus 0.85%April 7, 2024500Repay existing indebtedness and for general corporate purposes.
ComEd(c)
First Mortgage Bonds, Series 1323.15%March 15, 2032300Repay outstanding commercial paper obligations and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1333.85%March 15, 2052450Repay outstanding commercial paper obligations and to fund other general corporate purposes.
PECOFirst and Refunding Mortgage Bonds4.60%May 15, 2052350Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds4.375%August 15, 2052425Refinance outstanding commercial paper and for general corporate purposes.
BGENotes4.55%June 1, 2052500Repay outstanding commercial paper obligations, repay existing indebtedness, and for general corporate purposes.
PepcoFirst Mortgage Bonds3.97%March 24, 2052400Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.35%September 15, 2032225Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.06%February 15, 2052125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203225Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds3.06%February 15, 2052150Repay existing indebtedness and for general corporate purposes.
__________
(a)During the third quarter of 2022, the SMBC Term Loan, U.S. Bank Term Loan, and PNC Term Loan were all reclassified to Long-term debt due within one year on the Exelon Consolidated Balance Sheet, given that the Term Loans have maturity dates of July 21, 2023 , and July 24, 2023, respectively.
(b)In connection with the issuance and sale of the Notes, Exelon entered into a Registration Rights Agreement with the representatives of the initial purchasers of the Notes and other parties. Pursuant to the Registration Rights Agreement,
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Exelon filed a registration statement on August 3, 2022, with respect to an offer to exchange the Notes for substantially similar notes of Exelon that are registered under the Securities Act. An exchange offer of registered notes for the Notes was completed on January 12, 2023. The registered notes issued in exchange for Notes in the exchange offer have terms identical in all respects to the Notes, except that their issuance was registered under the Securities Act.
(c)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
During 2021, the following long-term debt was issued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonLong-Term Software License Agreements3.62%December 1, 2025$4Procurement of software licenses.
ComEdFirst Mortgage Bonds, Series 1303.13%March 15, 2051700Repay a portion of outstanding commercial paper obligations and two outstanding term loans, and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1312.75%September 1, 2051450Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds3.05%March 15, 2051375Funding for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds2.85%September 15, 2051375Refinance existing indebtedness and for general corporate purposes.
BGESenior Notes2.25%June 15, 2031600Repay a portion of outstanding commercial paper obligations, repay existing indebtedness, and to fund other general corporate purposes.
PepcoFirst Mortgage Bonds2.32%March 30, 2031150Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.29%September 28, 2051125Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.24%March 30, 2051125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.30%March 15, 2031350Refinance existing indebtedness, repay outstanding commercial paper obligations, and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203275Repay existing indebtedness and for general corporate purposes.

During 2022, the following long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonJunior Subordinated Notes3.50%May 2, 2022$1,150 
ExelonLong-Term Software License Agreement3.96%May 1, 20242
ExelonLong-Term Software License Agreement2.30%December 1, 2025
ExelonLong-Term Software License Agreement3.70%August 9, 2025
PECOFirst Mortgage Bonds2.375%September 15, 2022350 
BGENotes2.80%August 15, 2022250
PepcoFirst Mortgage Bonds3.05%April 1, 2022200
PepcoTax-Exempt Bonds1.70%September 1, 2022110
Additionally, in connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle an intercompany loan that mirrored the terms and amounts of the third-party debt obligations. The loan agreements were entered into as part of the 2012 Constellation merger. See Note 16
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— Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the mirror debt.
During 2021, the following long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonSenior Notes2.45%April 15, 2021$300 
ExelonLong-Term Software License Agreements3.95%May 1, 202424
ExelonLong-Term Software License Agreements3.62%December 1, 20251
ComEdFirst Mortgage Bonds3.40%September 1, 2021350
PECOFirst Mortgage Bonds1.70%September 15, 2021300
BGESenior Notes3.50%November 15, 2021300
ACEFirst Mortgage Bonds4.35%April 1, 2021200
ACETax-Exempt First Mortgage Bonds6.80%March 1, 202139
ACETransition Bonds5.55%October 20, 202121
From time to time and as market conditions warrant, the Registrants may engage in long-term debt retirements via tender offers, open market repurchases or other viable options to reduce debt on their respective balance sheets.
Dividends
Quarterly dividends declared by the Exelon Board of Directors during the year ended December 31, 2022 and for the first quarter of 2023 were as follows:
PeriodDeclaration DateShareholder of
Record Date
Dividend Payable Date
Cash per Share(a)
First Quarter 2022February 8, 2022February 25, 2022March 10, 2022$0.3375 
Second Quarter 2022April 26, 2022May 13, 2022June 10, 2022$0.3375 
Third Quarter 2022July 26, 2022August 15, 2022September 9, 2022$0.3375 
Fourth Quarter 2022October 28, 2022November 15, 2022December 9, 2022$0.3375 
First Quarter 2023February 14, 2023February 27, 2023March 10, 2023$0.3600 
___________
(a)Exelon's Board of Directors approved an updated dividend policy for 2023. The 2023 quarterly dividend will be $0.36 per share.
Credit Matters and Cash Requirements
The Registrants fund liquidity needs for capital expenditures, working capital, energy hedging, and other financial commitments through cash flows from continuing operations, public debt offerings, commercial paper markets, and large, diversified credit facilities. The credit facilities include $4.0 billion in aggregate total commitments of which $2.1 billion was available to support additional commercial paper as of December 31, 2022, and of which no financial institution has more than 6% of the aggregate commitments for the Registrants. On February 1, 2022, Exelon Corporate and the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information. The Registrants had access to the commercial paper markets and had availability under their revolving credit facilities during 2022 to fund their short-term liquidity needs, when necessary. The Registrants routinely review the sufficiency of their liquidity position, including appropriate sizing of credit facility commitments, by performing various stress test scenarios, such as commodity price movements, increases in margin-related transactions, changes in hedging levels, and the impacts of hypothetical credit downgrades. The Registrants closely monitor events in the financial markets and the financial institutions associated with the credit facilities, including monitoring credit ratings and outlooks, credit default swap levels, capital raising, and merger activity. See PART I, ITEM 1A. RISK FACTORS for additional information regarding the effects of uncertainty in the capital and credit markets.
The Registrants believe their cash flow from operating activities, access to credit markets, and their credit facilities provide sufficient liquidity to support the estimated future cash requirements discussed below.
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On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering of 12.995 million shares of its common stock, no par value. The net proceeds were $563 million before expenses paid. Exelon used the proceeds, together with available cash balances, to repay $575 million in borrowings under a $1.15 billion term loan credit facility. See Note 19 — Shareholders' Equity and Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.
On August 4, 2022, Exelon executed an equity distribution agreement (“Equity Distribution Agreement”) with certain sales agents and forward sellers and certain forward purchasers establishing an ATM equity distribution program under which it may offer and sell shares of its common stock, having an aggregate gross sales price of up to $1.0 billion. Exelon has no obligation to offer or sell any shares of common stock under the Equity Distribution Agreement and may at any time suspend or terminate offers and sales under the Equity Distribution Agreement. As of December 31, 2022, Exelon has not issued any shares of common stock under the ATM program and has not entered into any forward sale agreements.
Pursuant to the Separation Agreement between Exelon and Constellation Energy Corporation, Exelon made a cash payment of $1.75 billion to Generation on January 31, 2022. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information on the separation.
The following table presents the size of service territories, populations ofincremental collateral that each service territory andUtility Registrant would have been required to provide in the number of customers withinevent each service territory for the Utility Registrants as ofRegistrant lost its investment grade credit rating at December 31, 2017:2022 and available credit facility capacity prior to any incremental collateral at December 31, 2022:
PJM Credit Policy Collateral
Other Incremental Collateral Required(a)
Available Credit Facility Capacity Prior to Any Incremental Collateral
ComEd$31 $— $568 
PECO71 361 
BGE119 191 
Pepco— 
DPL15 185 
ACE— 300 
__________
 Service Territories Service Territory Population Number of Customers
 (in square miles) (in millions) (in millions)
 Total Electric Natural gas Total Electric Natural gas Total Electric Natural gas
ComEd11,400
 11,400
 n/a
 9.4
 (a) 
9.4
 n/a
 4.0
 4.0
 n/a
PECO2,100
 1,900
 1,900
 4.0
 (b) 
4.0
 2.4
 1.6
 1.6
 0.5
BGE3,250
 2,300
 3,050
 3.1
 (c) 
3.0
 2.9
 1.3
 1.3
 0.7
Pepco640
 640
 n/a
 2.4
 (d) 
2.4
 n/a
 0.9
 0.9
 n/a
DPL5,400
 5,400
 275
 1.4
 (e) 
1.4
 0.6
 0.5
 0.5
 0.1
ACE2,800
 2,800
 n/a
 1.1
 (f) 
1.1
 n/a
 0.6
 0.6
 n/a
__________
(a)Includes approximately 2.7 million in the city of Chicago.
(b)Includes approximately 1.6 million in the city of Philadelphia.
(c)Includes approximately 0.6 million in the city of Baltimore.
(d)Includes approximately 0.7 million in the District of Columbia.
(e)Includes approximately 0.1 million in the city of Wilmington.
(f)Includes approximately 0.1 million in the city of Atlantic City.
The Utility Registrants have the necessary authorizations(a)Represents incremental collateral related to perform their current business of providing regulated electric and natural gas distribution services in the various municipalities and territories in which they now supply such services. These authorizations include charters, franchises, permits, and certificates of public convenience issued by local and state governments and state utility commissions. ComEd's, BGE's and ACE's rights are generally non-exclusive; while PECO's, Pepco's and DPL's rights are generally exclusive. Certain authorizations are perpetual while others have varying expiration dates. The Utility Registrants anticipate working with the appropriate governmental bodies to extend or replace the authorizations prior to their expirations.procurement contracts.
Utility Regulations
State utility commissions regulate the Utility Registrants' electric and gas distribution rates and service, issuances of certain securities, and certain other aspects of the business. The following table outlines the state commissions responsible for utility oversight.
RegistrantCommission
ComEdICC
PECOPAPUC
BGEMDPSC
PepcoDCPSC/MDPSC
DPLDPSC/MDPSC
ACENJBPU

The Utility Registrants are public utilities under the Federal Power Act subject to regulation by FERC related to transmission rates and certain other aspects of the utilities' business. The U.S. Department of Transportation also regulates pipeline safety and other areas of gas operations for PECO, BGE and DPL. Additionally, the Utility Registrants are subject to NERC mandatory reliability standards, which protect the nation's bulk power system against potential disruptions from cyber and physical security breaches.
Seasonality Impacts on Delivery Volumes
The Utility Registrants' electric distribution volumes are generally higher during the summer and winter months when temperature extremes create demand for either summer cooling or winter heating. For PECO, BGE, and DPL, natural gas distribution volumes are generally higher during the winter months when cold temperatures create demand for winter heating.
ComEd, BGE, Pepco, and DPL Maryland, and ACE have electric distribution decoupling mechanisms and BGE has a natural gas decoupling mechanism that eliminate the favorable and unfavorable impacts of weather and customer usage patterns on electric distribution and natural gas delivery volumes. As a result, ComEd’s, BGE’s, Pepco’sComEd's, BGE's, Pepco's, DPL Maryland's, and DPL’s MarylandACE's electric distribution revenues and BGE's natural gas distribution revenues are not materially impacted by delivery volumes. PECO’sPECO's and ACE’sDPL Delaware's electric distribution revenues and DPL’s Delaware electric distribution and natural gas distribution revenues are impacted by delivery volumes.
Electric and Natural Gas Distribution Services
The Utility Registrants are allowed to recover reasonable costs and fair and prudent capital expenditures associated with electric and natural gas distribution services and earn a return on those capital expenditures, subject to commission approval. ComEd recovers costs through a performance-based rate formula. ComEd is required to file an update to the performance-based rate formula on an annual basis. On September 15, 2021, Illinois passed CEJA, which contains requirements for ComEd to transition away from the performance-based rate formula by the end of 2022 and would allow for the submission of either a general rate or multi-year rate plan. On February 3, 2022, the ICC approved a tariff that establishes the process under which ComEd will reconcile its 2022 and 2023 rate year revenue requirements with actual costs. ComEd filed a petition with the ICC seeking approval of a multi-year rate plan (MRP) for 2024-2027 on January 17, 2023. PECO's BGE’s and DPL's electric and gas distribution costs and Pepco's and ACE's electric distribution costs arehave generally been recovered through traditional rate case proceedings.proceedings, with PECO utilizing a fully projected future test year while DPL and ACE utilize a historical test year. BGE’s electric and gas distribution costs and Pepco’s and DPL Maryland's electric distribution costs are currently recovered through multi-year rate case proceedings, as the MDPSC and the DCPSC allow utilities to file multi-year rate plans. In certain instances, the Utility Registrants use specific recovery mechanisms as approved by their respective regulatory agencies. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
ComEd, Pepco, DPL and ACE customers have the choice to purchase electricity, and PECO BGE and DPLBGE customers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. DPL customers, with the exception of certain commercial and industrial customers, do not have the
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choice to purchase natural gas from competitive natural gas suppliers. The Utility Registrants remain the distribution service providers for all customers and are obligated to deliver electricity and natural gas to customers in their respective service territories while charging a regulated rate for distribution service. In addition, the Utility Registrants also retain significant default service obligations to provide electricity to certain groups of customers in their respective service areas who do not choose a competitive electric generation supplier. PECO, BGE, and BGEDPL also retain significant default service obligations to provide natural gas to certain groups of customers in their respective service areas who do not choose a competitive natural gas supplier. For natural gas, DPL does not retain default service obligations.
For customers that choose to purchase electric generation or natural gas from competitive suppliers, the Utility Registrants act as the billing agent and therefore do not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. Refer to ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Results of Operations for further information. For customers that choose to purchase electric generation or natural gas from a Utility Registrant, the Utility Registrants are permitted to recover the electricity and natural gas procurement costs from customers without mark-up or with a slight mark-up and therefore record equal and offsettingthe amounts ofin Operating revenues and Purchased power and fuel expense related to the electricity and/or natural gas.expense. As a result, fluctuations in electricity or natural gas sales and procurement costs

have no significant impact on the Utility Registrants’ Revenues netNet income.
See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Results of purchased powerOperations and fuel expense, which is a non-GAAP measure usedNote 3 — Regulatory Matters of the Combined Notes to evaluate operational performance, or Net Income.Consolidated Financial Statements for additional information regarding electric and natural gas distribution services.
Procurement-Related ProceedingsProcurement of Electricity and Natural Gas
Exelon does not generate the electricity it delivers. The Utility Registrants' electric supply for its customers is primarily procured through contracts as requireddirected by the ICC, PAPUC, MDPSC, DCPSC, DPSCtheir respective state laws and NJBPU.regulatory commission actions. The Utility Registrants procure electricity supply from various approved bidders including Generation. RTO spot marketor from purchases and sales are utilized to balance the utility electric load and supply as required. Charges incurred for electric supply procured through contracts with Generation are included in Purchased power from affiliates on the Utility Registrants' Statements of Operations and Comprehensive Income.PJM operated markets.
PECO's, BGE’s, and DPL's natural gas supplies are purchased from a number of suppliers for terms of up tothat currently do not exceed three years. PECO, BGE, and DPL each have annual firm supply and transportation contracts of 132,000443,000 mmcf, 128,000268,000 mmcf, and 58,00044,000 mmcf, respectively. In addition, torespectively, for delivery of gas. To supplement gas transportation and supply at times of heavy winter demands and in the event of temporary emergencies, PECO, BGE, and DPL have available storage capacity from the following sources:
Peak Natural Gas Sources (in mmcf)
LNG FacilityPropane-Air Plant
Underground Storage Service Agreements(a)
PECO1,200 150 19,400 
BGE1,056 550 22,000 
DPL250 N/A3,900 
 Peak Natural Gas Sources (in mmcf)
 
Liquefied Natural
Gas Facility
 Propane-Air Plant 
Underground Storage Service Agreements (a)
PECO1,200
 150
 18,000
BGE1,056
 550
 22,000
DPL257
 n/a
 3,800
___________
___________
(a)Natural gas from underground storage represents approximately 27%, 42%, and 33% of PECO's, BGE’s, and DPL's 2022-2023 heating season planned supplies, respectively.
(a)Natural gas from underground storage represents approximately 28%, 46% and 34% of PECO's, BGE’s and DPL's 2017-2018 heating season planned supplies, respectively.
PECO, BGE, and DPL have long-term interstate pipeline contracts and also participate in the interstate markets by releasing pipeline capacity or bundling pipeline capacity with gas for off-system sales. Off-system gas sales are low-margin direct sales of gas to wholesale suppliers of natural gas. Earnings from these activities are shared between the utilities and customers. PECO, BGE, and DPL make these sales as part of a program to balance its supply and cost of natural gas. The off-system gas sales are not material to PECO, BGE, and DPL.
Refer toSee ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK, Commodity Price Risk (All Registrants), for furtheradditional information regarding Utility Registrants' contracts to procure electric supply and natural gas.
Energy Efficiency Programs
The Utility Registrants are generally allowed to recover costs associated with the energy efficiency and demand response programs.programs they offer. Each commission approved program seeks to meet mandated electric consumption reduction targets and implement demand response measures to reduce peak demand. The programs are designed to meet standards required by each respective regulatory agency.
The Utility Registrants are allowed to
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ComEd, with limited exceptions, earns a return on its energy efficiency costs through a regulatory asset. BGE, Pepco Maryland, DPL Maryland, and ACE earn a return on most of their energy efficiency costs.and demand response program costs through a regulatory asset. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for furtheradditional information.

Capital Investment
The Utility Registrants' businesses are capital intensive and require significant investments, primarily in electric transmission and distribution and natural gas transportation and distribution facilities, to ensure the adequate capacity, reliability, and efficiency of their systems. ComEd's, PECO's, BGE's, Pepco's, DPL'sSee ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Liquidity and ACE's most recent estimates ofCapital Resources, for additional information regarding projected 2023 capital expenditures for plant additions and improvements for 2018 are as follows:
 Projected 2018 Capital Expenditure Spending
(in millions)Transmission Distribution Gas Total
ComEd$375
 $1,750
 N/A
 $2,125
PECO125
 450
 $225
 800
BGE175
 425
 400
 1,000
Pepco125
 600
 N/A
 725
DPL150
 200
 50
 400
ACE175
 200
 N/A
 375
ComEd, PECO, BGE, Pepco and DPL have AMI smart meter and smart grid deployment programs within their respective service territories to enhance their distribution systems. PECO, BGE, Pepco and DPL have completed the installation and activation of smart meters and smart grid in their respective service territories. ComEd expects to complete its smart meter and smart grid deployment in 2018.expenditures.
Transmission Services
Under FERC’s open access transmission policy, the Utility Registrants, as owners of transmission facilities, are required to provide open access to their transmission facilities under filed tariffs at cost-based rates approved by FERC. The Utility Registrants and their affiliates are required to comply with FERC’s Standards of Conduct regulation governing the communication of non-public transmission information between the transmission owner’s employees and wholesale merchant employees.
PJM is the regional grid operator and operates pursuant to FERC-approved tariffs. PJM is the transmission provider under, and the administrator of, the PJM Open Access Transmission Tariff (PJM Tariff).Tariff. PJM operates the PJM energy, capacity, and other markets, and, through central dispatch, controls the day-to-day operations of the bulk power system for the region. The Utility Registrants are members of PJM and provide regional transmission service pursuant to the PJM Tariff. The Utility Registrants and the other transmission owners in PJM have turned over control of certain of their transmission facilities to PJM, and their transmission systems are under the dispatch control of PJM. Under the PJM Tariff, transmission service is provided on a region-wide, open-access basis using the transmission facilities of the PJM transmission owners at rates based on the costs of transmission service.owners.
ComEd'sThe Utility Registrants' transmission rates are established based on a FERC approved formula as shown below:
Approval Date
ComEdJanuary 2008
PECODecember 2019
BGEApril 2006
PepcoApril 2006
DPLApril 2006
ACEApril 2006
Exelon’s Strategy and Outlook
Following the separation on February 1, 2022, Exelon is now a Distribution and Transmission company, focused on delivering electricity and natural gas service to our customers and communities. Exelon's businesses remain focused on maintaining industry leading operational excellence, meeting or exceeding their financial commitments, ensuring timely recovery on investments to enable customer benefits, supporting clean energy policies including those that was approved by FERCadvance our jurisdictions' clean energy targets, and continued commitment to corporate responsibility.
Exelon’s strategy is to improve reliability and operations, enhance the customer experience, and advance clean and affordable energy choices, while ensuring ratemaking mechanisms provide the utilities fair financial returns. The jurisdictions in January 2008. BGE's, Pepco's, DPL'swhich Exelon has operations have set some of the nation's leading clean energy targets and ACE's transmission rates are established based on a formulaour strategy is to enable that was approved by FERCfuture for all our stakeholders. The Utility Registrants invest in April 2006. FERC’s orders establish the agreed-upon treatment of costs and revenues in the determination of networkrate base that supports service transmission ratesto our customers and the processcommunity, including investments that sustain and improve reliability and resiliency and that enhance the service experience of our customers. The Utility Registrants make these investments prudently at a reasonable cost to customers. Exelon seeks to leverage its scale and expertise across the utilities platform through enhanced standardization and sharing of resources and best practices to achieve improved operational and financial results.
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Management continually evaluates growth opportunities aligned with Exelon’s businesses, assets, and markets, leveraging Exelon’s expertise in those areas and offering sustainable returns.
The Utility Registrants anticipate investing approximately $31 billion over the next four years in electric and natural gas infrastructure improvements and modernization projects, including smart grid technology, storm hardening, advanced reliability technologies, and transmission projects, which is projected to result in an increase to current rate base of approximately $18 billion by the end of 2026. These investments provide greater reliability, improved service for updatingour customers, increased capacity to accommodate new technologies and support a cleaner grid, and a stable return for the formula rate calculation oncompany.
In August 2021, Exelon announced a Path to Clean goal to collectively reduce its operations-driven GHG emissions 50% by 2030 against a 2015 baseline and to reach net zero operations-driven GHG emissions by 2050, while supporting customers and communities in achieving their GHG reduction goals (Path to Clean). Exelon's quantitative goals include its Scope 1 and 2 GHG emissions, with the exception of Scope 2 emissions associated with system losses of electric power delivered to customers ("line losses"), and build upon Exelon's long-standing commitment to reducing our GHG emissions. Exelon's Path to Clean efforts extend beyond these quantitative goals to include efforts such as customer energy efficiency programs, which support reductions in customers' direct emissions and have the potential to reduce Exelon's Scope 3 emissions and Scope 2 line losses as well. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Climate Change for additional information.
Various market, financial, regulatory, legislative, and operational factors could affect Exelon's success in pursuing its strategies. Exelon continues to assess infrastructure, operational, policy, and legal solutions to these issues. See ITEM 1A. RISK FACTORS for additional information.
Employees
The Registrants strive to create a workplace culture that promotes and embodies diversity, inclusion, innovation, and safety for their employees. In order to provide the services and products that their customers expect, the Registrants aspire to create teams that reflect the diversity of the communities that the Registrants serve. Therefore, the Registrants take steps to attract highly qualified and diverse talent and seek to create hiring and promotion practices that are equitable and neutralize any bias, including unconscious bias. The Registrants provide growth opportunities, competitive compensation and benefits, and a variety of training and development programs. The Registrants are committed to helping employees grow their skills and careers largely through numerous training opportunities; mentorship programs; continuous feedback and development discussions; and evaluations. Employees are encouraged to thrive outside the workplace as well. The Registrants provide a full suite of wellness benefits targeted at supporting work-life balance, physical, mental and financial health, and industry-leading paid leave policies.
The Registrants typically conduct an annual basis.employee engagement survey every other year to help identify organizational strengths and areas of opportunity for growth. The survey results are reviewed with senior management and the Exelon Board of Directors.
On May 1, 2017, PECO filed a request with FERC seeking approval to update its transmission ratesDiversity Metrics
The following tables show diversity metrics for all employees and change the manner in which PECO’s transmission rate is determined from a fixed rate to a formula rate. The new formula was accepted by FERC effectivemanagement as of December 1, 2017, subject31, 2022.
EmployeesExelonComEdPECOBGEPHIPepcoDPLACE
Female(a)(b)(c)
5,300 1,535 752 786 1,270 329 139 109 
People of Color(b)(c)
7,519 2,575 990 1,170 1,803 865 203 145 
Aged <302,026 721 361 286 424 169 85 61 
Aged 30-5010,548 3,728 1,455 1,819 2,271 739 465 357 
Aged >506,489 1,907 1,070 1,061 1,466 442 341 203 
Total Employees(d)
19,063 6,356 2,886 3,166 4,161 1,350 891 621 

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Management(e)
ExelonComEdPECOBGEPHIPepcoDPLACE
Female(a)(b)(c)
961 235 139 122 206 51 13 21 
People of Color(b)(c)
1,086 331 134 166 276 116 32 22 
Aged <3029 — 
Aged 30-501,715 510 182 265 395 120 58 40 
Aged >501,286 363 190 163 276 61 57 40 
Within 10 years of retirement eligibility1,787 520 238 226 379 91 68 55 
Total Employees in Management(d)
3,030 880 381 432 677 181 117 82 
 __________
(a)The Registrants have a particular focus on creating an environment that attracts and retains women by enabling them to refundstay in the workforce, grow with the company, and set for hearingmove up the ranks.
(b)To effectuate Exelon's pay equity goals, Exelon conducts analysis on gender and settlement judge proceedings, which are currently ongoing. See Note 3racial pay equity.

(c)Information concerning women and people of color is based on self-disclosed information.
— Regulatory Matters(d)Total employees represents the sum of the Combined Notesaged categories.
(e)Management is defined as executive/senior level officials and managers as well as all employees who have direct reports and/or supervisory responsibilities.
Turnover Rates
As turnover is inherent, management succession planning is performed and tracked for all executives and critical key manager positions. Management frequently reviews succession planning to Consolidated Financial Statementsensure the Registrants are prepared when positions become available.
The table below shows the average turnover rate for additional detail regardingall employees for the transmission formula late.last three years of 2020 to 2022.
See Note 3 Regulatory Matters, Note 25—Segment Information
ExelonComEdPECOBGEPHIPepcoDPLACE
Retirement Age3.71 %4.09 %4.10 %3.48 %3.79 %3.74 %4.42 %3.88 %
Voluntary2.79 %2.22 %2.71 %1.76 %2.52 %2.81 %1.46 %1.84 %
Non-Voluntary0.81 %0.60 %1.10 %1.06 %1.02 %1.95 %0.47 %0.68 %
Collective Bargaining Agreements
Approximately 44% of the Combined Notes to Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS, Liquidity and Capital Resources for additionalExelon’s employees participate in CBAs. The following table presents employee information, regarding transmission services.
Employees
Asincluding information about CBAs, as of December 31, 2017, Exelon and its subsidiaries had 34,621 employees2022.
Total Employees Covered by CBAsNumber of CBAs
CBAs New and Renewed in 2022(a)
Total Employees Under CBAs
New and Renewed
in 2022
Exelon8,379 10 906 
ComEd3,477 — — 
PECO1,368 — — 
BGE1,414 — — 
PHI2,113 906 
Pepco890 890 
DPL621 — — 
ACE401 16 
 __________
(a)Does not include CBAs that were extended in the following companies,2022 while negotiations are ongoing for renewal.
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Table of which 11,845 or 34% were covered by collective bargaining agreements (CBAs):Contents
 
IBEW 
Local 15(a)
 
IBEW 
Local 614(b)
 Other CBAs 
Total 
Employees
Covered by 
CBAs
 
Total
Employees
Generation(c)
1,660
 97
 2,729
 4,486
 15,011
ComEd3,515
 
 
 3,515
 6,280
PECO
 1,148
 
 1,148
 2,534
BGE(d)

 
 
 
 3,022
PHI(e)

 
 322
 322
 1,320
Pepco(e)

 
 1,151
 1,151
 1,582
DPL(e)

 
 688
 688
 944
ACE(e)

 
 421
 421
 647
Other(f)
65
 
 49
 114
 3,281
Total5,240

1,245

5,360

11,845

34,621
__________
(a)A separate CBA between ComEd and IBEW Local 15 covers approximately 65 employees in ComEd’s System Services Group and was renewed in 2016. Generation’s and ComEd’s separate CBAs with IBEW Local 15 will expire in 2022.
(b)PECO craft and call center employees in the Philadelphia service territory are covered by CBAs with IBEW Local 614, both expiring in 2021. Additionally, Exelon Power, an operating unit of Generation, has an agreement covering 97 employees, which was renewed in 2016 and expiring in 2019.
(c)During 2017, Generation finalized CBAs with the Security Officer unions at LaSalle, Limerick and Quad Cities, which all will expire in 2020 and Dresden expiring in 2021. Additionally, during 2017, Generation acquired and combined two CBAs at FitzPatrick into one CBA covering both craft and security employees, which will expire in 2023. During 2016, Generation finalized its CBA with the Security Officer union at Oyster Creek, expiring in 2022 and New Energy IUOE Local 95-95A, which will expire in 2021. Also, during 2016, Generation finalized a 5-year agreement with the New England ENEH, UWUA Local 369, which will expire in 2022. During 2015, Generation finalized its CBA with Clinton Local 51 which will expire in 2020; its two CBAs with Local 369 at Mystic 7 and Mystic 8/9, both expiring in 2020; and four Security Officer unions at Braidwood, Byron, Clinton and TMI, all expiring between 2018 and 2021, respectively. During 2014, Generation finalized CBAs with TMI Local 777 and Oyster Creek Local 1289, expiring in 2019 and 2021, respectively and CENG finalized its CBA with Nine Mile Point which will expire in 2020. Additionally, during 2014, an agreement was negotiated with Las Vegas District Energy and IUOE Local 501, which will expire in 2018.
(d)In January 2017, an election was held at BGE which resulted in union representation for 1,394 employees at the end of the year. BGE and IBEW Local 410 are negotiating an initial agreement which could result in some modifications to wages, hours and other terms and conditions of employment. No agreement has been finalized to date and management cannot predict the outcome of such negotiations.
(e)PHI’s utility subsidiaries are parties to five CBAs with four local unions. CBAs are generally renegotiated every three to five years. All of these CBAs were renegotiated in 2014 and were extended through various dates ranging from October 2018 through June 2020.
(f)Other includes shared services employees at BSC.

Environmental Matters and Regulation
General
The Registrants are subject to comprehensive and complex environmental legislation regarding environmental matters byand regulation at the federal, government and various state, and local jurisdictions in which they operate their facilities. The Registrants are also subjectlevels, including requirements relating to environmental regulations administered by the EPAclimate change, air and various state and local environmental protection agencies. Federal, state and local regulation includes the authority to regulate air, water andquality, solid and hazardous waste, disposal.and impacts on species and habitats.
The Exelon Board of Directors is responsible for overseeing the management of environmental matters. Exelon has a management team to address environmental compliance and strategy, including the CEO; the Senior Vice President Corporateand Chief Strategy and Chief Sustainability Officer; the Senior Vice President, Competitive Market Policy; and the Director, Safety & Sustainability, as well as senior management of Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE.the Utility Registrants. Performance of those individuals directly involved in environmental compliance and strategy is reviewed and affects compensation as part of the annual individual performance review process. The Exelon Board of Directors has delegatedAudit and Risk Committee oversees compliance with environmental laws and regulations, including environmental risks related to its Generation Oversight CommitteeExelon's operations and thefacilities, as well as SEC disclosures related to environmental matters. Exelon's Corporate Governance Committee has the authority to oversee Exelon’s compliance with health, environmental and safety laws and regulations and its strategies and efforts to protect and improve the quality of the environment, including Exelon’s internal climate change and sustainability policies and programs, as discussed in further detail below. The respective Boards of ComEd, PECO, BGE, Pepco, DPL and ACEthe Utility Registrants oversee environmental health and safety issues related to these companies. The Exelon Board of Directors has general oversight responsibilities for ESG matters, including strategies and efforts to protect and improve the quality of the environment.
Climate Change
As detailed below, the Registrants face climate change mitigation and transition risks as well as adaptation risks. Mitigation and transition risks include changes to the energy systems as a result of new technologies, changing customer expectations and/or voluntary GHG goals, as well as local, state or federal regulatory requirements intended to reduce GHG emissions. Adaptation risk refers to risks to the Registrants' facilities or operations that may result from changes to the physical climate and environment, such as changes to temperature, weather patterns and sea level.
Climate Change Mitigation and Transition
The Registrants support comprehensive federal climate legislation that addresses the urgent need to substantially reduce national GHG emissions while providing appropriate protections for consumers, businesses, and the economy. In the absence of comprehensive federal climate legislation, Exelon supports the EPA moving forward with meaningful regulation of GHG emissions under the Clean Air QualityAct.
Air qualityThe Registrants currently are subject to, and may become subject to additional, federal and/or state legislation and/or regulations promulgatedaddressing GHG emissions. GHG emission sources associated with the Registrants include sulfur hexafluoride (SF6) leakage from electric transmission and distribution operations, refrigerant leakage from chilling and cooling equipment, and fossil fuel combustion in motor vehicles. In addition, PECO, BGE, and DPL, as distributors of natural gas are regulated with respect to reporting of natural gas (methane) leakage on the natural gas systems and consumer use of such natural gas.
Since its inception, Exelon has positioned itself as a leader in climate change mitigation. Exelon uses definitions and protocols provided by the EPAWorld Resources Institute for its GHG inventory. In 2021, Exelon's Scope 1 and 2 GHG emissions, as revised following its separation from Constellation, were just over 5.7 million metric tons carbon dioxide equivalent using the World Resources Institute Corporate Standard Market-based accounting. Of these emissions, 0.5 million metric tons are considered to be operations-driven and in more direct control of our employees and processes. The majority of these operations-driven emissions are fugitive emissions from the gas delivery systems of Registrants PECO, BGE, and DPL. The remaining 5.2 million metric tons, approximately 91%, are the indirect emissions associated with the operation and use of the electric distribution and transmission system and primarily consists of losses resulting from the Utility Registrant's delivery of electricity to their customers (line losses). These emissions are driven primarily by customer demand for electricity and the various statemix of generation assets supplying energy to the electric grid. The Registrants do not own generation and must comply with applicable legal and regulatory requirements governing procurement of electricity for delivery to retail customers and use of the system to support other transmission transactions. However, the Registrants do engage in efforts that help to reduce these emissions, including customer programs to drive customer energy efficiency, help to manage peak demands, and enable distributed solar generation.
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In August 2021, Exelon announced a Path to Clean goal to collectively reduce their operations-driven GHG emissions 50% by 2030 against a 2015 baseline, and to reach net zero operations-driven GHG emissions by 2050, while also supporting customers and communities to achieve their clean energy and emissions goals. Exelon’s quantitative goals include its Scope 1 and 2 GHG emissions, with the exception of Scope 2 line losses, and builds upon Exelon's long-standing commitment to reducing our GHG emissions. Exelon's activities in support of the Path to Clean goal will include efficiency and clean electricity for operations, vehicle fleet electrification, equipment and processes to reduce sulfur hexafluoride (SF6) leakage, investments in natural gas infrastructure to minimize methane leaks and increase safety and reliability, and investment and collaboration to develop new technologies. Beyond 2030, Exelon recognizes that technology advancement and continued policy support will be needed to ensure achievement of Net-Zero by 2050. Exelon is laying the groundwork by partnering with national labs, universities and research consortia to research, develop, and pilot clean technologies that will be needed, as well as working with our states, jurisdictions and policy makers to understand the scope and scale of energy transformation, and needed policies and incentives, that will be needed to reach local environmental agencies impose restrictions on emissionambitions for GHG emissions reductions. The Utility Registrants are also supporting customers and communities to achieve their clean energy and emissions goals through significant energy efficiency programs. During 2023 - 2026, estimated customer program energy efficiency investments across the Utility Registrants total $3.5 billion. These programs enable customer savings through home energy audits, lighting discounts, appliance recycling, home improvement rebates, equipment upgrade incentives and innovative programs like smart thermostats and combined heat and power programs.
As an energy delivery company, Exelon can play a key role in lowering GHG emissions across much of particulates, sulfur dioxide (SO2), nitrogen oxides (NOx), mercurythe economy in its service territories. In connecting end users of energy to electric and gas supply, Exelon can leverage its assets and customer interface to encourage efficient use of lower emitting resources as they become available. Electrification, where feasible for transportation, buildings, and industry coupled with simultaneous decarbonization of electric generation, can be a key lever for emissions reductions. To support this transition, Exelon is advocating for public policy supportive of vehicle electrification, investing in enabling infrastructure and technology, and supporting customer education and adoption. In addition, the Utility Registrants have a goal to electrify 30% of their own vehicle fleet by 2025, increasing to 50% by 2030. Clean fuels and other air pollutantsemerging technologies can also support the transition, lessen the strain on electric system expansion, and require permitssupport energy system resiliency. Exelon, and its registrants PECO, BGE, and DPL that own gas distribution assets, are also continuing to explore these other decarbonization opportunities, supporting pilots of emerging energy technologies and clean fuels to support both operational and customer-driven emissions reductions. The energy transition may present challenges for operationthe Utility Registrants and their service territories. Exelon believes its market and business model could be significantly affected by the transition of emitting sources. Such permits have been obtainedthe energy system, such as needed by Exelon’s subsidiaries. However, due to its low emitting generation fleet comprised of nuclear,through an increased electric load and decreased demand for natural gas, hydroelectric, windpotentially accompanied by changes in technology, customer expectations, and/or regulatory structures. See ITEM 1A. RISK FACTORS. The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry.
Climate Change Adaptation
The Registrants' facilities and operations are subject to the impacts of global climate change. Long-term shifts in climactic patterns, such as sustained higher temperatures and sea level rise, may present challenges for the Registrants and their service territories. Exelon believes its operations could be significantly affected by the physical risks of climate change. See ITEM 1A. RISK FACTORS for additional information related to the Registrants' risks associated with climate change.
The Registrants' assets undergo seasonal readiness efforts to ensure they are ready for the weather projections of the summer and winter months. The Registrants consider and review national climate assessments to inform their planning. Each of the Utility Registrants also has well established system recovery plans and is investing in its systems to install advanced equipment and reinforce the local electric system, making it more weather resistant and less vulnerable to anticipated storm damage.
International Climate Change Agreements. At the international level, the United States is a party to the United Nations Framework Convention on Climate Change (UNFCCC). The Parties to the UNFCCC adopted the Paris Agreement at the 21st session of the UNFCCC Conference of the Parties (COP 21) on December 12, 2015. Under the Agreement, which became effective on November 4, 2016, the parties committed to try to limit the global average temperature increase and to develop national GHG reduction commitments. On November 4, 2020, the United States formally withdrew from the Paris Agreement, but on January 20, 2021, President Biden
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accepted the Agreement, which resulted in the United States’ formal re-entry on February 19, 2021. The United States has set an economy-wide target of reducing its net GHG emissions by 50-52% below 2005 levels by 2030. On November 11, 2022 at the UNFCCC Conference of the Parties (COP 27), President Biden recommitted the U.S. to these goals and detailed the significant domestic climate actions the U.S. had taken to spur a new era of clean American manufacturing, enhance energy security, and drive down the costs of clean energy for consumers in the U.S. and around the world.
Federal Climate Change Legislation and Regulation.On August 16, 2022, President Biden signed the Inflation Reduction Act (IRA), which aims to reduce U.S. carbon emissions and promote economic development through investments in clean and renewable energy projects. The consumer-facing clean energy tax credits created or expanded by the IRA are intended to drive rapid adoption of energy efficiency, electric transportation, and solar compliance withenergy which would require Exelon's utilities to expand and modernize infrastructure, systems and services to integrate and optimize these resources.
Regulation of GHGs from Power Plants under the FederalClean Air Act.TheEPA’s 2015 Clean Power Plan (CPP) established regulations addressing carbon dioxide emissions from existing fossil-fired power plants under Clean Air Act does notSection 111(d). The CPP’s carbon pollution limits could be met through changes to the electric generation system, including shifting generation from higher-emitting units to lower- or zero-emitting units, as well as the development of new or expanded zero-emissions generation. In July 2019, the EPA published its final Affordable Clean Energy rule, which repealed the CPP and replaced it with less stringent emissions guidelines for existing fossil-fired power plants based on heat rate improvement measures that could be achieved within the fence line of individual plants. Exelon, together with a coalition of other electric utilities, filed a lawsuit in the U.S. Court of Appeals for the D.C. Circuit, challenging the rescission of the Clean Power Plan and enactment of the Affordable Clean Energy rule as unlawful. On January 19, 2021, the D.C. Circuit held the Affordable Clean Energy Rule (including its rescission of the Clean Power Plan) to be unlawful, vacated the rule, and remanded it to the EPA. The Supreme Court granted certiorari to examine the extent of the EPA's authority to regulate GHGs from power plants and, on June 30, 2022, reversed and remanded the D.C. Circuit's decision. The Supreme Court ruled that the EPA's use of generation shifting for development of standards in the Clean Power Plan went beyond Congress' intended authority under the Clean Air Act. The EPA has indicated that it will promulgate new GHG limits for existing power plants. Increased regulation of GHG emissions from power plants could increase the cost of electricity delivered or sold by the Registrants. As of February 1, 2022, following its separation from Constellation, Exelon no longer owns electric generation plants.
State Climate Change Legislation and Regulation. A number of states in which the Registrants operate have a materialstate and regional programs to reduce GHG emissions and renewable and other portfolio standards, which impact on Generation’s operations.
the power sector. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONSdiscussion below for additional information regarding clean air regulationon renewable and other portfolio standards.
Certain northeast and mid-Atlantic states (Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia) currently participate in the formsRGGI. The program requires most fossil fuel-fired power plant owners and operators in the region to hold allowances, purchased at auction, for each ton of CO2 emissions. Non-emitting resources do not have to purchase or hold these allowances. Pennsylvania joined RGGI in April 2022.
Broader state programs impact other sectors as well, such as the District of Columbia's Clean Energy DC Omnibus Act and cross-sector GHG reduction plans, which resulted in recent requirements for Pepco to develop 5-year and 30-year decarbonization programs and strategies. Maryland expects to meet and exceed the mandate set in the Greenhouse Gas Emissions Reduction Act to reduce statewide GHG emissions 40% (from 2006 levels) by 2030, and the state’s Climate Solutions Now Act of 2022 further updates requirements with a proposal to reduce emissions 60% (from 2006 levels) by 2031. New Jersey accelerated its goals through Executive Order 274, which establishes an interim goal of 50% reductions below 2006 levels by 2030 and affirms its goal of achieving 80% reductions by 2050 and includes programs to drive greater amounts of electrified transportation. Illinois’ climate bill, CEJA, establishes decarbonization requirements for the state to transition to 100% clean energy by 2050 and supports programs to improve energy efficiency, manage energy demand, attract clean energy investment and accelerate job creation. See Note 3 — Regulatory Matters of the CSAPR,Combined Notes to Consolidated Financial Statements for additional information on CEJA.
The Registrants cannot predict the regulationnature of hazardous air pollutantsfuture regulations or how such regulations might impact future financial statements.
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Renewable and Clean Energy Standards. Each of the states where Exelon operates have adopted some form of renewable or clean energy procurement requirement. These standards impose varying levels of mandates for procurement of renewable or clean electricity (the definition of which varies by state) and/or energy efficiency. These are generally expressed as a percentage of annual electric load, often increasing by year. The Utility Registrants comply with these various requirements through acquiring sufficient bundled or unbundled credits such as RECs, CMCs, or ZECs, or paying an alternative compliance payment, and/or a combination of these compliance alternatives. The Utility Registrants are permitted to recover from coal- and oil-fired electric generating facilities under MATS, and regulationretail customers the costs of GHG emissions.complying with their state RPS requirements, including the procurement of RECs or other alternative energy resources. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Other Environmental Regulation
Water Quality
Under the federal Clean Water Act, NPDES permits for discharges into waterways are required to be obtained from the EPA or from the state environmental agency to which the permit program has been delegated, and permits must be renewed periodically. Certain of Exelon's facilities discharge stormwater and industrial wastewaterwater into waterways and are therefore subject to these regulations and operate under NPDES permits or pending applications for renewals of such permits after being granted an administrative extension. Generation is also subject to the jurisdiction of the Delaware River Basin Commission and the Susquehanna River Basin Commission, regional agencies that primarily regulate water usage.permits.
Section 316(b) of the Clean Water Act
Section 316(b) requires that the cooling water intake structures at electric power plants reflect the best technology available to minimize adverse environmental impacts, and is implemented through state-level NPDES permit programs. All of Generation’s power generation facilities with cooling water systems are subject to the regulations. Facilities without closed-cycle recirculating systems (e.g., cooling towers)

are potentially most affected by recent changes to the regulations. For Generation, those facilities are Calvert Cliffs, Clinton, Dresden, Eddystone, Fairless Hills, FitzPatrick, Ginna, Gould Street, Mountain Creek, Handley, Mystic 7, Nine Mile Point Unit 1, Peach Bottom, Quad Cities, Riverside and Salem.
On October 14, 2014, the EPA's Section 316(b) rule became effective. The rule requires that a series of studies and analyses be performed to determine the best technology available to minimize adverse impacts on aquatic life, followed by an implementation period for the selected technology. The timing of the various requirements for each facility is related to the status of its current NPDES permit and the subsequent renewal period. There is no fixed compliance schedule, as this is left to the discretion of the state permitting director.
Until the compliance requirements are determined by the applicable state permitting director on a site-specific basis for each plant, Generation cannot estimate the effect that compliance with the rule will have on the operation of its generating facilities and its future results of operations, cash flows, and financial position. Should a state permitting director determine that a facility must install cooling towers to comply with the rule, that facility’s economic viability could be called into question. However, the potential impact of the rule has been significantly reduced since the final rule does not mandate cooling towers as a national standard and sets forth technologies that are presumptively compliant, and the state permitting director is required to apply a cost-benefit test and can take into consideration site-specific factors, such as those that would make cooling towers infeasible.
Pursuant to discussions with the NJDEP in 2010 regarding the application of Section 316(b) to Oyster Creek, Generation agreed to permanently cease generation operations at Oyster Creek by December 31, 2019, ten years before the expiration of its operating license in 2029. The agreement only applies to Oyster Creek based on its unique circumstances and does not set any precedent for the ultimate compliance requirements for Section 316(b) at Exelon’s other plants. On February 2, 2018, Exelon announced that Generation will permanently cease generation operations at Oyster Creek at the end of its current operating cycle in October 2018.
New York Facilities
In July 2011, the New York Department of Environmental Conservation (DEC) issued a policy regarding the best available technology for cooling water intake structures. Through its policy, the DEC established closed-cycle cooling or its equivalent as the performance goal for all existing facilities, but also provided that the DEC will select a feasible technology whose costs are not wholly disproportionate to the environmental benefits to be gained and allows for a site-specific determination where the entrainment performance goal cannot be achieved (i.e., the requirement most likely to support cooling towers). The R.E Ginna and Nine Mile Point Unit 1 power generation facilities received renewals of their state water discharge permits in 2014 and cooling towers were not required. These facilities are now engaged in the required analyses to enable the environmental agency to determine the best technology available in the next permit renewal cycles.
Salem
On July 28, 2016, the NJDEP issued a final permit for Salem that did not require the installation of cooling towers and allows Salem to continue to operate utilizing the existing cooling water system with certain required system modifications. However, the permit is being challenged by an environmental organization, and if successful, could result in additional costs forUnder Clean Water Act compliance. Potential coolingSection 404 and state laws and regulations, the Registrants may be required to obtain permits for projects involving dredge or fill activities in waters of the United States.
Where Registrants’ facilities are required to secure a federal license or permit for activities that may result in a discharge to covered waters, they may be required to obtain a state water system modification costs could be material and could adversely impact the economic competitiveness of this facility.

quality certification under Clean Water Act section 401.
Solid and Hazardous Waste and Environmental Remediation
CERCLA provides for immediate response and removal actions coordinated by the EPA in the event of threatened releases of hazardous substances and authorizes the EPA either to clean up sites at which hazardous substances have created actual or potential environmental hazards or to order persons responsible for the situation to do so. Under CERCLA, generators and transporters of hazardous substances, as well as past and present owners and operators of hazardous waste sites, are strictly, jointly and severally liable for the cleanup costs of hazardous waste at sites, mostmany of which are listed by the EPA on the National Priorities List (NPL). These PRPs can be ordered to perform a cleanup, can be sued for costs associated with an EPA-directed cleanup, may voluntarily settle with the EPA concerning their liability for cleanup costs, or may voluntarily begin a site investigation and site remediation under state oversight prioroversight. Most states have also enacted statutes that contain provisions substantially similar to listing onCERCLA. Such statutes apply in many states where the NPL. Various states,Registrants currently own or operate, or previously owned or operated, facilities, including Delaware, Illinois, Maryland, New Jersey, and Pennsylvania and the District of Columbia have also enacted statutes that contain provisions substantially similar to CERCLA.Columbia. In addition, RCRA governs treatment, storage and disposal of solid and hazardous wastes and cleanup of sites where such activities were conducted.
Generation, ComEd, PECO, BGE, Pepco, DPL and ACE and their subsidiaries are, or could become in the future, parties to proceedings initiated by the EPA, state agencies and/or other responsible parties under CERCLA and RCRA with respect to a number of sites, including MGP sites, or may undertake to investigate and remediate sites for which they may be subject to enforcement actions by an agency or third-party.
See Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information regarding solid and hazardous waste regulation and legislation.
Environmental Remediation
ComEd’s and PECO’s environmental liabilities primarily arise from contamination at former MGP sites. ComEd, pursuant to an ICC order, and PECO, pursuant to settlements of natural gas distribution rate cases with the PAPUC, have an on-going process to recover environmental remediation costs of the MGP sites through a provision within customer rates. BGE, ACE, Pepco and DPL do not have material contingent liabilities relating to MGP sites. The amount to be expended in 2018 for compliance with environmental remediation related to contamination at former MGP sites and other gas purification sites is expected to total $48 million, consisting of $42 million and $6 million at ComEd and PECO respectively. The Utility Registrants also have contingent liabilities for environmental remediation of non-MGP contaminants (e.g., PCBs). As of December 31, 2017, the Utility Registrants have established appropriate contingent liabilities for environmental remediation requirements.
The Registrants’ operations have in the past, and may in the future, require substantial expenditures in order to comply with environmental laws. Additionally, underthese Federal and state environmental laws. Under these laws, the Registrants are generallymay be liable for the costs of remediating environmental contamination of property now or formerly owned by them and of property contaminated by hazardous substances generated by them. The Registrants own or lease a number of real estate parcels, including parcels on which their operations or the operations of others may have resulted in contamination by substances that are considered hazardous under environmental laws. The Registrants and their subsidiaries are, or could become in the future, parties to proceedings initiated by the EPA, state agencies, and/or other responsible parties under CERCLA and RCRA or similar state laws with respect to a number of sites or may undertake to investigate and remediate sites for which they may be subject to enforcement actions by an agency or third-party.
In addition, Generation,ComEd’s and PECO’s environmental liabilities primarily arise from contamination at former MGP sites, which were operated by ComEd's and PECO's predecessor companies. ComEd, pursuant to an ICC order, and PECO, pursuant to settlements of natural gas distribution rate cases with the PAPUC, have an on-going process to recover certain environmental remediation costs of the MGP sites through a provision within customer rates. BGE, Pepco, DPL, and ACE do not have material contingent liabilities relating to MGP sites. The amount to be
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expended in 2023 for compliance with environmental remediation related to contamination at former MGP sites and other gas purification sites is estimated to be approximately $52 million which consists primarily of $44 million at ComEd.
As of December 31, 2022, the Registrants have established appropriate contingent liabilities for environmental remediation requirements. In addition, the Registrants may be required to make significant additional expenditures not presently determinable for other environmental remediation costs.
See NotesNote 3 — Regulatory Matters and 23Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information regarding the Registrants’ environmental matters, remediation efforts, and related impacts to the Registrants’ results of operations, cash flows and financial positions.

Global Climate Change
Exelon has utility and generation assets, and customers, that are and will be further subject to the impacts of climate change. Accordingly, Exelon is engaged in a variety of initiatives to understand and mitigate these impacts, including investments in resiliency, partnering with federal, state and local governments to minimize impacts, and, importantly, advocating for public policy that reduces emissions that cause climate change. Exelon, as a producer of electricity from predominantly low- and zero-carbon generating facilities (such as nuclear, hydroelectric, natural gas, wind and solar photovoltaic), has a relatively small greenhouse gas (GHG) emission profile, or carbon footprint, compared to other domestic generators of electricity (Exelon neither owns or operates any coal-fueled generating assets). Exelon's natural gas and biomass fired generating plants produce GHG emissions, most notably, CO2. However, Generation’s owned-asset emission intensity, or rate of carbon dioxide equivalent (CO2e) emitted per unit of electricity generated, is among the lowest in the industry. In 2017, while fossil fuel powered approximately 33 percent of Exelon's owned generating capacity, fossil fuel-fired generation represents less than 12 percent of Exelon's overall generation on a MWh basis. Other GHG emission sources at Exelon include natural gas (methane) leakage on the natural gas systems, sulfur hexafluoride (SF6) leakage from electric transmission and distribution operations, refrigerant leakage from chilling and cooling equipment, and fossil fuel combustion in motor vehicles. Exelon facilities and operations are subject to the global impacts of climate change and Exelon believes its operations could be significantly affected by the physical risks of climate change. See ITEM 1A. RISK FACTORS for information regarding the market and financial, regulatory and legislative, and operational risks associated with climate change.
Climate Change Regulation
Exelon is or may become subject to additional climate change regulation or legislation at the federal, regional and state levels.
International Climate Change Agreements. At the international level, the United States is a Party to the United Nations Framework Convention on Climate Change (UNFCCC). The Parties to the UNFCCC adopted the Paris Agreement at the 21st session of the UNFCCC Conference of the Parties (COP 21) on December 12, 2015, and it became effective on November 4, 2016. Under the Paris Agreement, the Parties agreed to try to limit the global average temperature increase to 2°C (3.6°F) above pre-industrial levels. In doing so, Parties developed their own national reduction commitments. The United States submitted a non-binding target of 17% below 2005 emission levels by 2020 and 26% to 28% below 2005 levels by 2025. President Trump has stated his intention to withdraw the U.S. from the Paris Agreement, but no formal action has been initiated.
Federal Climate Change Legislation and Regulation. It is highly unlikely whether federal legislation to reduce GHG emissions will be enacted in the near-term. If such legislation is adopted, Exelon may incur costs either to further limit or offset the GHG emissions from its operations or to procure emission allowances or credits. More importantly, continued inaction could negatively impact the value of Exelon’s low-carbon fleet.
Under the Obama Administration, the EPA proposed and finalized regulations for fossil fuel-fired power plants, referred to as the Clean Power Plan, which are currently being litigated. However, the Trump Administration has proposed a repeal of the Clean Power Plan, and is expected to seek broad public comment on whether and how to regulate GHGs at the federal level. Details are not yet known and are likely to be further informed by the public comment process.
Given this uncertainty, Exelon and Generation cannot at this time predict the future of the Clean Power Plan, or its repeal and/or replacement, or individual state responses to Clean Power Plan developments or how developments will impact their future results of operations, cash flows and financial positions.

Regional and State Climate Change Legislation and Regulation. A number of states in which Exelon operates have state and regional programs to reduce GHG emissions, including from the power sector. As the nation’s largest generator of carbon-free electricity, our fleet supports these efforts to produce safe, reliable electricity with minimal GHGs. Notably, nine northeast and mid-Atlantic states (Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New York, Rhode Island and Vermont) currently participate in the Regional Greenhouse Gas Initiative (RGGI), which is in the process of strengthening its requirements. The program requires most fossil fuel-fired power plants in the region to hold allowances, purchased at auction, for each ton of CO2 emissions. Non-emitting resources do not have to purchase or hold these allowances.
Many states in which Exelon subsidiaries operate also have state-specific programs to address GHGs, including from power plants. Most notable of these, besides RGGI, are through renewable and other portfolio standards. Additionally, in response to a court decision clarifying obligations under the Global Warming Solutions Act, the Massachusetts Department of Environmental Protection in 2017 finalized regulations establishing a statewide cap on CO2 emissions from fossil fuel power plants (Massachusetts remains in RGGI as well). The effect of this new obligation and potential for market illiquidity in the early years represent a risk to Generation’s Massachusetts fossil facilities, including Medway and Mystic. At the same time, the District of Columbia is considering a plan to incorporate the cost of carbon into electricity, via consumption, as well as directly into the cost of transportation and home heating fuels. Details remain to be developed, but the specifics could have implications for Pepco’s operations.
Regardless of whether GHG regulation occurs at the local, state, or federal level, Exelon remains one of the largest, lowest-carbon electric generators in the United States, relying mainly on nuclear, natural gas, hydropower, wind, and solar. The extent that the low-carbon generating fleet will continue to be a competitive advantage for Exelon depends on what, if anything, replaces the Clean Power Plan at the federal level, new or expanded state action on greenhouse gas emissions or direct support of clean energy technologies, including nuclear, as well as potential market reforms that value our fleet’s emission-free attributes.
Renewable and Alternative Energy Portfolio Standards
Thirty-nine states and the District of Columbia, incorporating the vast majority of Exelon operations as well as all utility operations, have adopted some form of RPS requirement. These standards impose varying levels of mandates for procurement of renewable or clean electricity (the definition of which varies by state) and/or energy efficiency. These are generally expressed as a percentage of annual electric load, often increasing by year. Exelon's utilities comply with these various requirements through purchasing qualifying renewables, implementing efficiency programs, acquiring sufficient credits (e.g., RECs), paying an alternative compliance payment, and/or a combination of these compliance alternatives. The Utility Registrants are permitted to recover from retail customers the costs of complying with their state RPS requirements, including the procurement of RECs or other alternative energy resources. New York and Illinois adopted standards targeted at preserving the zero-carbon attributes of certain Exelon’s nuclear-powered generating facilities. Generation owns multiple facilities participating in these programs within both states. Other states in which Generation and our utilities operate are considering similar programs.
See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on renewable portfolio standards.Statements.

17

Information about our Executive Officers of the Registrants as of February 9, 201814, 2023
Exelon
NameAge
PositionPositionPeriod
Crane, Christopher M.Butler, Calvin G. Jr.5953 
Chief Executive Officer, Exelon2012 - Present
Chairman, ComEd, PECO & BGE2012 - Present
Chairman, PHI2016 - Present
President, Exelon2008 - Present
President, Generation2008 - 2013
Cornew, Kenneth W.52
Senior Executive Vice President and Chief Commercial Officer, Exelon2013 - Present
President and CEO, Generation2013 - Present
Executive Vice President and Chief Commercial Officer, Exelon2012 - 2013
President and Chief Executive Officer, ConstellationExelon20122022 - 2013Present
Chief Operating Officer, Exelon2021 - 2022
O’Brien, Denis P.57
Senior Executive Vice President, Exelon; Exelon2019 - 2022
Chief Executive Officer, Exelon Utilities20122019 - Present2022
Vice Chairman, ComEd, PECO & BGE2012 - Present
Vice Chairman, PHI2016 - Present
Pramaggiore, Anne R.59
Chief Executive Officer, ComEd2012 - Present
President, ComEd2009 - Present
Adams, Craig L.65
President and Chief Executive Officer, PECO2012 - Present
Butler, Calvin G.48
Chief Executive Officer, BGE2014 - Present
Senior Vice President, Regulatory and External Affairs, BGE2013 - 2014
Senior Vice President, Corporate Affairs, Exelon2011 - 2013
David M. Velazquez58
President and Chief Executive Officer, PHI2016 - Present
President and Chief Executive Officer, Pepco, DPL & ACE2009 - Present
Executive Vice President, Pepco Holdings, Inc.2009 - 2016
Von Hoene Jr., William A.64
Senior Executive Vice President and Chief Strategy Officer, Exelon2012 - Present
Thayer, Jonathan W.46
Senior Executive Vice President and Chief Financial Officer, Exelon2012 - Present
Aliabadi, Paymon55
Executive Vice President and Chief Risk Officer, Exelon2013 - Present
Managing Director, Gleam Capital Management2012 - 2013
DesParte, Duane M.54
Senior Vice President and Corporate Controller, Exelon2008 - Present

Generation
2019
NameAge
PositionPeriod
Cornew, Kenneth W.52
Senior Executive Vice President and Chief Commercial Officer, Exelon2013 - Present
President and CEO, Generation2013 - Present
Executive Vice President and Chief Commercial Officer, Exelon2012 - 2013
President and Chief Executive Officer, Constellation2012 - 2013
Pacilio, Michael J.57
Executive Vice President and Chief Operating Officer, Generation2015 - Present
President, Exelon Nuclear; Senior Vice President2010 - 2015
and Chief Nuclear Officer, Generation
Hanson, Bryan C52
President and Chief Nuclear Officer, Exelon Nuclear; Senior Vice President, Generation2015 - Present
Nigro, Joseph53
Executive Vice President, Exelon; Chief Executive Officer, Constellation2013 - Present
Senior Vice President, Portfolio Management and Strategy2012 - 2013
DeGregorio, Ronald55
Senior Vice President, Generation; President, Exelon Power2012 - Present
Wright, Bryan P.51
Senior Vice President and Chief Financial Officer, Generation2013 - Present
Senior Vice President, Corporate Finance, Exelon2012 - 2013
Bauer, Matthew N.41
Vice President and Controller, Generation2016 - Present
Vice President and Controller, BGE2014 - 2016
Vice President of Power Finance, Exelon Power2012 - 2014

ComEd
NameAge
PositionPeriod
Pramaggiore, Anne R.59
Chief Executive Officer, ComEd2012 - Present
President, ComEd2009 - Present
Donnelly, Terence R.57
Executive Vice President and Chief Operating Officer, ComEd2012 - Present
Trpik Jr., Joseph R.48
Senior Vice President, Chief Financial Officer and Treasurer, ComEd2009 - Present
Jensen, Val62
Senior Vice President, Customer Operations, ComEd2012 - Present
Gomez, Veronica48
Senior Vice President, Regulatory and Energy Policy and General Counsel, ComEd2017 - Present
Vice President and Deputy General Counsel, Litigation, Exelon2012 - 2017
Marquez Jr., Fidel56
Senior Vice President, Governmental & External Affairs, Exelon2012 - Present
McGuire, Timothy M.59
Senior Vice President, Distribution Operations, ComEd2016 - Present
Vice President, Transmission and Substations, ComEd2010 - 2016
Kozel, Gerald J.45
Vice President, Controller, ComEd2013 - Present
Assistant Corporate Controller, Exelon2012 - 2013

PECO
NameAgePositionPeriod
Adams, Craig L.65
President and Chief Executive Officer, PECO2012 - Present
Barnett, Phillip S.54
Senior Vice President and Chief Financial Officer, PECO2007 - Present
Treasurer, PECO2012 - Present
Innocenzo, Michael A.52
Senior Vice President and Chief Operations Officer, PECO2012 - Present
Murphy, Elizabeth A.58
Senior Vice President, Governmental & External Affairs, PECO2016 - Present
Vice President, Governmental & External Affairs, PECO2012 - 2016
Webster Jr., Richard G.56
Vice President, Regulatory Policy and Strategy, PECO2012 - Present
Jiruska, Frank J.57
Vice President, Customer Operations, PECO2013 - Present
Diaz Jr., Romulo L.71
Vice President and General Counsel, PECO2012 - Present
Bailey, Scott A.41
Vice President and Controller, PECO2012 - Present

BGE
NameAgePositionPeriod
Butler, Calvin G.48
Chief Executive Officer, BGE2014 - Present
Senior Vice President, Regulatory and External Affairs, BGE2013 - 2014
Senior Vice President, Corporate Affairs, Exelon2011 - 2013
Woerner, Stephen J.50
President, BGE2014 - Present
Chief Operating Officer, BGE2012 - Present
Senior Vice President, BGE2009 - 2014
Vahos, David M.45
Senior Vice President, Chief Financial Officer and Treasurer, BGE2016 - Present
Vice President, Chief Financial Officer and Treasurer, BGE2014 - 2016
Vice President and Controller, BGE2012 - 2014
Núñez, Alexander G.46
Senior Vice President, Regulatory and External Affairs, BGE2016 - Present
Vice President, Governmental & External Affairs, BGE2013 - 2016
Director, State Affairs, BGE2012 - 2013
Case, Mark D.56
Vice President, Regulatory Policy and Strategy, BGE2012 - Present
Biagiotti, Robert D.48
Vice President, Customer Operations, BGE2015 - Present
Vice President, Gas Distribution, BGE2011 - 2015
Gahagan, Daniel P.64
Vice President and General Counsel, BGE2007 - Present
Andrew W. Holmes49
Vice President and Controller, BGE2016 - Present
Director, Generation Accounting, Exelon2013 - 2016
Director, Derivatives and Technical Accounting, Exelon2008 - 2013

PHI, Pepco, DPL and ACE
NameJones, JeanneAge43 PositionExecutive Vice President and Chief Financial Officer, ExelonPeriod2022 - Present
Velazquez,Senior Vice President, Corporate Finance, Exelon2021 - 2022
Senior Vice President and Chief Financial Officer, ComEd2018 - 2021
Glockner, David M.5862 Executive Vice President, Compliance, Audit and Risk, Exelon2020 - Present
Chief Compliance Officer, Citadel LLC2017 - 2020
Littleton, Gayle E.50 Executive Vice President, General Counsel, Exelon2020 - Present
Partner, Jenner & Block LLP2015 - 2020
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE20162021 - Present
Executive Vice President, Pepco Holdings, Inc.2009-2016
President and Chief Executive Officer, Pepco, DPL & ACE2009 - Present
Anthony, J. Tyler53Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, &and ACE2016 - Present2021
Trpik, Joseph R.53 Senior Vice President Distributionand Corporate Controller, Exelon2022 - Present
Interim Senior Vice President & CFO, ComEd2021 - 2022
Senior Vice President & CFO, Exelon Utilities2018 - 2021
18

ComEd
NameAgePositionPeriod
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Donnelly, Terence R.62 President and Chief Operating Officer, ComEd2018 - Present
Graham, Elisabeth J.44 Senior Vice President, Chief Financial Officer & Treasurer, ComEd2022 - Present
Treasurer, Exelon2018 - 2022
Rippie, E. Glenn62 Senior Vice President and General Counsel, ComEd2022 - Present
Senior Vice President and Deputy General Counsel, Energy Regulation, Exelon2022 - Present
Partner, Jenner & Block LLP2019 - 2021
Partner and Chief Financial Officer, Rooney, Rippie & Ratnaswamy, LLP2010 - 2019
Washington, Melissa53 Senior Vice President, Customer Operations, ComEd20102021 - 2016Present
Kinzel, DonnaSenior Vice President, Governmental and External Affairs, ComEd2019 - 2021
Vice President, Governmental and External Affairs, ComEd2019 - 2019
Vice President, External Affairs and Large Customer Services, ComEd2016 - 2019
Binswanger, Lewis63 Senior Vice President, Governmental, Regulatory and External Affairs, ComEd2022 - Present
Vice President, External Affairs, Nicor Gas2013 - 2022
19

PECO
NameAgePositionPeriod
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Levine, Nicole46 Senior Vice President and Chief Operations Officer, PECO2022 - Present
Vice President, Electrical Operations, PECO2018 - 2022
Humphrey, Marissa43 Senior Vice President, Chief Financial Officer and Treasurer, PECO2022 - Present
Vice President, Regulatory Policy and Strategy (NJ/DE), PHI, DPL, and ACE2021 - 2022
Vice President, Finance, Exelon Utilities2019 - 2020
Vice President, Financial Planning and Analysis, PHI, Pepco, DPL, and ACE2016 - 2019
Murphy, Elizabeth A.63 Senior Vice President, Governmental, Regulatory and External Affairs, PECO2016 - Present
Williamson, Olufunmilayo44 Senior Vice President, Customer Operations, PECO2021 - Present
Senior Vice President, Chief Commercial Risk Officer, Exelon2017 - 2020
Gay, Anthony57 Vice President and General Counsel, PECO2019 - Present
Vice President, Governmental and External Affairs, PECO2016 - 2019
20

BGE
NameAgePositionPeriod
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Dickens, Derrick58 Senior Vice President and Chief Operating Officer, BGE2021 - Present
Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2020 - 2021
Vice President, Technical Services, BGE2016 - 2020
Vahos, David M.50 Senior Vice President, Chief Financial Officer and Treasurer, BGE2016 - Present
Núñez, Alexander G. 51 Senior Vice President, Governmental, Regulatory and External Affairs, BGE2021 - Present
Senior Vice President, Regulatory Affairs and Strategy, BGE2020 - 2021
Senior Vice President, Regulatory and External Affairs, BGE2016 - 2020
Galambos, Denise60 Senior Vice President, Customer Operations, BGE2021 - Present
Vice President, Utility Oversight, Exelon Utilities2020 - 2021
Vice President, Human Resources, BGE2018 - 2020
Ralph, David56 Vice President and General Counsel, BGE2021 - Present
Associate General Counsel, BGE2019 - 2021
Assistant General Counsel, Exelon2017 - 2019
21

PHI, Pepco, DPL, and ACE
NameAgePositionPeriod
Anthony, J. Tyler5058 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Olivier, Tamla50 Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Customer Operations, BGE2020 - 2021
Senior Vice President, Constellation NewEnergy, Inc.2016 - 2020
Barnett, Phillip S.59 Senior Vice President, Chief Financial Officer and Treasurer, PHI, Pepco, DPL, &and ACE20162018 - Present
Vice President, Treasurer and Chief Risk Officer, Pepco Holdings2012 - 2016
Bonney, Paul R.59Senior Vice President, Legal and Regulatory Strategy, PHI, Pepco, DPL & ACE2016 - Present
Oddoye, Rodney46 Senior Vice President and General Counsel, Constellation2012 - 2016
Lavinson, Melissa A.48Senior Vice President, Governmental, &Regulatory and External Affairs, PHI, Pepco, DPL, &and ACE2021 - Present
Senior Vice President, Governmental and External Affairs, BGE2020 - 2021
Vice President, Customer Operations, BGE2018 - Present2020
Vice President, Federal Affairs and Policy, and Chief Sustainability Officer, PG&E Corporation2015 - 2018
Vice President, Federal Affairs, PG&E Corporation2012 - 2015
Bancroft, Anne56 
Stark, Wendy E.45Vice President and General Counsel, PHI, Pepco, DPL, &and ACE20162021 - Present
DeputyAssociate General Counsel, Pepco Holdings, Inc.Exelon20122017 - Present2021
McGowan, Kevin M.56Vice President, Regulatory Policy and Strategy, PHI, Pepco, DPL & ACE2016 - Present
Vice President, Regulatory Affairs, Pepco Holdings, Inc.2012 - 2016
Aiken, Robert M.51Vice President and Controller, PHI, Pepco, DPL & ACE2016 - Present
Vice President and Controller, Generation2012 - 2016

Bell-Izzard, Morlon57 Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2021 - Present
Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2019 - 2021
Director, Utility Performance Assessment, Exelon2016 - 2019
ITEM 1A.RISK FACTORS
Each of the Registrants operates in a complex market and regulatory environment that posesinvolves significant risks, many of which are beyond that Registrant’s direct control. Management of each Registrant regularly meets with the Chief Risk Officer and the Registrant's Risk Management Committee (RMC),Such risks, which comprises officers of the Registrant, to identify and evaluate the most significant risks of the Registrant's business and the appropriate steps to manage and mitigate those risks. The Chief Risk Officer and senior executives of the Registrants discuss those risks with the Finance and Risk Committee and Audit Committee of the Exelon Board of Directors and the ComEd, PECO, BGE and PHI boards of directors. In addition, the Generation Oversight Committee of the Exelon Board of Directors evaluates risks related to the generation business. The risk factors discussed below could adverselynegatively affect one or more of the Registrants’ consolidated financial statements, fall primarily under the categories below:
Risks related to market and financial factors primarily include:
the demand for electricity, reliability of service, and affordability in the markets where the Utility Registrants conduct their business,
the ability of the Utility Registrants to operate their respective transmission and distribution assets, their ability to access capital markets, and the impacts on their results of operations, financial condition or liquidity/cash flows due to public health crises, epidemics or financial positionspandemics, such as COVID-19, and
emerging technologies and business models, including those related to climate change mitigation and transition to a low carbon economy.
Risks related to legislative, regulatory, and legal factors primarily include changes to, and compliance with, the market priceslaws and regulations that govern:
utility regulatory business models,
environmental and climate policy, and
tax policy.
22

Risks related to operational factors primarily include:
changes in the global climate could produce extreme weather events, which could put the Registrant’s facilities at risk, and such changes could also affect the levels and patterns of demand for energy and related services,
the ability of the Utility Registrants to maintain the reliability, resiliency, and safety of their publicly traded securities. Eachenergy delivery systems, which could affect their ability to deliver energy to their customers and affect their operating costs, and
physical and cyber security risks for the Utility Registrants as the owner-operators of transmission and distribution facilities.
Risks related to the Registrants has disclosedseparation primarilyinclude:
challenges to achieving the known material risks that affect its business at this time. However, therebenefits of separation and
performance by Exelon and Constellation under the transaction agreements, including indemnification responsibilities.
There may be further risks and uncertainties that are not presently known or that are not currently believed by a Registrant to be material that could adverselynegatively affect its performance orthe Registrants' consolidated financial conditionstatements in the future.
Exelon's results of operations, cash flows and financial position are affected to a significant degree by: (1) Generation’s position as a predominantly nuclear generator selling power into competitive energy markets with a concentration in select regions and (2) the role of the Utility Registrants as operators of electric transmission and distribution systems in six of the largest metropolitan areas in the United States. Factors that affect the results of operations, cash flows or financial positions of the Registrants fall primarily under the following categories, all of which are discussed in further detail below:
Market and Financial Factors. Exelon’s and Generation’s results of operations are affected by price fluctuations in the energy markets. Power prices are a function of supply and demand, which in turn are driven by factors such as (1) the price of fuels, in particular the price of natural gas, which affects the prices that Generation can obtain for the output of its power plants, (2) the presence of other generation resources in the markets in which Generation’s output is sold, (3) the demand for electricity in the markets where the Registrants conduct their business, (4) the impacts of on-going competition in the retail channel and (5) emerging technologies.
Regulatory and Legislative Factors. The regulatory and legislative factors that affect the Registrants include changes to the laws and regulations that govern competitive markets and utility cost recovery, tax policy, zero emission credit programs and environmental policy. In particular, Exelon’s and Generation’s financial performance could be affected by changes in the design of competitive wholesale power markets or Generation’s ability to sell power in those markets. In addition, potential regulation and legislation, including regulation or legislation regarding climate change and renewable portfolio standards (RPS), could have significant effects on the Registrants. Also, returns for the Utility Registrants are influenced significantly by state regulation and regulatory proceedings.
Operational Factors. The Registrants’ operational performance is subject to those factors inherent in running the nation’s largest fleet of nuclear power reactors and large electric and gas distribution systems. The safe, secure and effective operation of the nuclear facilities and the ability to effectively manage the associated decommissioning obligations as well as the ability to maintain the availability, reliability, safety and security of its energy delivery systems are fundamental to Exelon’s ability to achieve value-added growth for customers, communities and shareholders. Additionally, the operating costs of the Registrants and the opinions of their customers, regulators and shareholders are affected by those companies’ ability to maintain the reliability, safety and efficiency of their energy delivery systems.

Risks Related to the PHI Merger.Exelon is subject to additional risks related to the merger with PHI, which closed on March 23, 2016.
A discussion of each of these risk categories and other risk factors is included below.
Market and Financial Factors
Generation is exposed to depressed prices in the wholesale and retail power markets, which could negatively affect its results of operations, cash flows or financial position (Exelon and Generation).
Generation is exposed to commodity price risk for the unhedged portion of its electricity generation supply portfolio. Generation’s earnings and cash flows are therefore exposed to variability of spot and forward market prices in the markets in which it operates.
Price of Fuels
The spot market price of electricity for each hour is generally determined by the marginal cost of supplying the next unit of electricity to the market during that hour. Thus, the market price of power is affected by the market price of the marginal fuel used to generate the electricity unit. Often, the next unit of electricity will be supplied from generating stations fueled by fossil fuels. Consequently, changes in the market price of fossil fuels often result in comparable changes to the market price of power. For example, the use of technologies to recover natural gas from shale deposits has increased natural gas supply and reserves, placing downward pressure on natural gas prices and, therefore, on power prices. The continued addition of supply from new alternative generation resources, such as wind and solar, whether mandated through RPS or otherwise subsidized or encouraged through climate legislation or regulation, could displace a higher marginal cost plant, further reducing power prices. In addition, further delay or elimination of EPA air quality regulations could prolong the duration for which the cost of pollution from fossil fuel generation is not factored into market prices.
Demand and Supply
The market price for electricity is also affected by changes in the demand for electricity and the available supply of electricity. Unfavorable economic conditions, milder than normal weather, and the growth of energy efficiency and demand response programs could each depress demand. The result is that higher-cost generating resources do not run as frequently, putting downward pressure on electricity market prices. The tepid economic environment in recent years and growing energy efficiency and demand response initiatives have limited the demand for electricity in Generation’s markets. In addition, in some markets, the supply of electricity through wind or solar generation, when combined with other base-load generation such as nuclear, could often exceed demand during some hours of the day, resulting in loss of revenue for base-load generating plants such as Exelon's nuclear plants. Increased supply in excess of demand is furthered by the continuation of RPS mandates and subsidies for renewable energy.
Retail Competition
Generation’s retail operations compete for customers in a competitive environment, which affects the margins that Generation can earn and the volumes that it is able to serve. In periods of sustained low natural gas and power prices and low market volatility, retail competitors can aggressively pursue market share because the barriers to entry can be low and wholesale generators (including Generation) use their retail operations to hedge generation output. Increased or more aggressive competition could adversely affect overall gross margins and profitability in Generation’s retail operations.
Sustained low market prices or depressed demand and over-supply could adversely affect Exelon’s and Generation’s results of operations, cash flows or financial positions and such impacts could be

emphasized given Generation’s concentration of base-load electric generating capacity within primarily two geographic market regions, namely the Midwest and the Mid-Atlantic. These impacts could adversely affect Exelon’s and Generation’s ability to fund regulated utility growth for the benefit of customers, reduce debt and provide attractive shareholder returns. In addition, such conditions may no longer support the continued operation of certain generating facilities, which could adversely affect Exelon's and Generation's result of operations through accelerated depreciation expense, impairment charges related to inventory that cannot be used at other nuclear units and cancellation of in-flight capital projects, accelerated amortization of plant specific nuclear fuel costs, severance costs, accelerated asset retirement obligation expense related to future decommissioning activities, and additional funding of decommissioning costs, which can be offset in whole or in part by reduced operating and maintenance expenses.  A slow recovery in market conditions could result in a prolonged depression of or further decline in commodity prices, including low forward natural gas and power prices and low market volatility, which could also adversely affect Exelon’s and Generation’s results of operations, cash flows or financial positions. See Note 8 — Early Nuclear Plant Retirements of the Combined Notes to Consolidated Financial Statements for additional information.
In addition to price fluctuations, Generation is exposed to other risks in the power markets that are beyond its control and could negatively affect its results of operations (Exelon and Generation).
Credit Risk
In the bilateral markets, Generation is exposed to the risk that counterparties that owe Generation money, or are obligated to purchase energy or fuel from Generation, will not perform under their obligations for operational or financial reasons. In the event the counterparties to these arrangements fail to perform, Generation could be forced to purchase or sell energy or fuel in the wholesale markets at less favorable prices and incur additional losses, to the extent of amounts, if any, already paid to the counterparties. In the spot markets, Generation is exposed to risk as a result of default sharing mechanisms that exist within certain markets, primarily RTOs and ISOs, the purpose of which is to spread such risk across all market participants. Generation is also a party to agreements with entities in the energy sector that have experienced rating downgrades or other financial difficulties. In addition, Generation’s retail sales subject it to credit risk through competitive electricity and natural gas supply activities to serve commercial and industrial companies, governmental entities and residential customers. Retail credit risk results when customers default on their contractual obligations. This risk represents the loss that could be incurred due to the nonpayment of a customer’s account balance, as well as the loss from the resale of energy previously committed to serve the customer.
Market Designs
The wholesale markets vary from region to region with distinct rules, practices and procedures. Changes in these market rules, problems with rule implementation, or failure of any of these markets could adversely affect Generation’s business. In addition, a significant decrease in market participation could affect market liquidity and have a detrimental effect on market stability.
The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry including technologies related to energy generation, distribution and consumption (All Registrants).
SomeAdvancements in power generation technology, including commercial and residential solar generation installations and commercial micro turbine installations, are improving the cost-effectiveness of these technologies include, but are not limitedcustomer self-supply of electricity. Improvements in energy storage technology, including batteries and fuel cells, could also better position customers to further development or applications of technologies related to shale gas production, cost-effective renewable energy technologies,meet their around-the-clock electricity requirements. Improvements in energy efficiency distributedof lighting, appliances, equipment and building materials will also affect energy consumption by customers. Changes in power generation, storage, and use technologies could have significant effects on customer behaviors and their energy storage devices. Suchconsumption.
These developments could affect the price of energy, levels of customer-owned generation, customer expectations, and current business models and make portions of our electric system power supply andthe Utility Registrants' transmission and/or distribution facilities

obsolete uneconomic prior to the end of their useful lives. Such technologiesIncreasing pressure from both the private and public sectors to take actions to mitigate climate change could also result in further declines in commodity prices or demand for delivered energy. Eachpush the speed and nature of thesethis transition. These factors could materially affect the Registrants’ results of operations, cash flows orconsolidated financial positionsstatements through, among other things, reduced operating revenues, increased operating and maintenance expenses, and increased capital expenditures, as well asand potential asset impairment charges or accelerated depreciation and decommissioning expenses over shortened remaining asset useful lives.
Market performance and other factors could decrease the value of NDT funds and employee benefit plan assets and could increase the related employee benefit plan obligations, which then could require significant additional funding (All Registrants).
Disruptions in the capital markets and their actual or perceived effects on particular businesses and the greater economy could adversely affect the value of the investments held within Generation’s NDTs and Exelon’s employee benefit plan trusts. The Registrants have significant obligations in these areas and Exelon and Generation hold substantial assets in these trusts to meet those obligations. The asset values are subject to market fluctuations and will yield uncertain returns, which could fall below the Registrants’Exelon's projected return rates. A decline in the market value of the NDT fund investments could increase Generation’s funding requirements to decommission its nuclear plants. A decline in the market value of the pension and OPEB plan assets willwould increase the funding requirements associated with Exelon’s pension and OPEB plan obligations. Additionally, Exelon’s pension and OPEB plan liabilities are sensitive to changes in interest rates. As interest rates decrease, the liabilities increase, potentially increasing benefit costs and funding requirements. Changes in demographics, including increased numbers of retirements or changes in life expectancy assumptions or changes to Social Security or Medicare eligibility requirements could also increase the costs and funding requirements of the obligations related to the pension and OPEB plans. If future increases in pension and other postretirement costs as a result of reduced plan assets or other factors cannot be recovered, or cannot be recovered in a timely manner, from the Utility Registrants' customers, the results of operations, cash flows or financial positionsSee Note 14Retirement Benefits of the UtilityCombined Notes to Consolidated Financial Statements for additional information.
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The Registrants could be negatively affected. Ultimately, if the Registrants are unable to manage the investments within the NDT funds and benefit plan assets, and are unable to manage the related benefit plan liabilities, their results of operations, cash flows or financial positions could be negatively impacted.
Unstableaffected by unstable capital and credit markets and increased volatility in commodity markets could adversely affect the Registrants’ businesses in several ways, including the availability and cost of short-term funds for liquidity requirements, the Registrants’ ability to meet long-term commitments, Generation’s ability to hedge effectively its generation portfolio, and the competitiveness and liquidity of energy markets; each could negatively impact the Registrants’ results of operations, cash flows or financial positions (All Registrants).
The Registrants rely on the capital markets, particularly for publicly offered debt, as well as the banking and commercial paper markets, to meet their financial commitments and short-term liquidity needs if internal funds are not available from the Registrants’ respective operations.needs. Disruptions in the capital and credit markets in the United States or abroad could adverselynegatively affect the Registrants’ ability to access the capital markets or draw on their respective bank revolving credit facilities. The Registrants’ access to funds under their credit facilities depends on the ability of the banks that are parties to the facilities to meet their funding commitments. Those banks may not be able to meet their funding commitments to the Registrants if they experience shortages of capital and liquidity or if they experience excessive volumes of borrowing requests from the Registrants and other borrowers within a short period of time. The inability to access capital markets or credit facilities, and longer-term disruptions in the capital and credit markets as a resultbecause of uncertainty, changing or increased regulation, reduced alternatives, or failures of significant financial institutions could result in the deferral of discretionary capital

expenditures, changes to Generation’s hedging strategy in order to reduce collateral posting requirements, or require a reduction in dividend payments or other discretionary uses of cash.
In addition, the Registrants have exposure to worldwide financial markets, including Europe, Canada, and Asia. Disruptions in these markets could reduce or restrict the Registrants’ ability to secure sufficient liquidity or secure liquidity at reasonable terms. As of December 31, 2017,2022, approximately 19%23%, or $1.8 billion, 19%10%, or $1.8 billion, and 17%, or $1.6 billion16% of the Registrants’ available credit facilities were with European, Canadian, and Asian banks, respectively. The credit facilities include $9.5 billion in aggregate total commitments of which $8.3 billion was available as of December 31, 2017. As of December 31, 2017, there were no borrowings under Generation's bilateral credit facilities.Additionally, higher interest rates may put pressure on the Registrants’ overall liquidity profile, financial health and impact financial results. See Note 1316 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the credit facilities.
The strength and depth of competition in energy markets depend heavily on active participation by multiple trading parties, which could be adversely affected by disruptions in the capital and credit markets and legislative and regulatory initiatives that could affect participants in commodities transactions. Reduced capital and liquidity and failures of significant institutions that participate in the energy markets could diminish the liquidity and competitiveness of energy markets that are important to the respective businesses of the Registrants. Perceived weaknesses in the competitive strength of the energy markets could lead to pressures for greater regulation of those markets or attempts to replace market structures with other mechanisms for the sale of power, including the requirement of long-term contracts, which could have a material adverse effect on Exelon’s and Generation’s results of operations, cash flows or financial positions.
If any of the Registrants were to experience a downgrade in its credit ratings to below investment grade or otherwise fail to satisfy the credit standards in its agreements with its counterparties or regulatory financial requirements, it would be required to provide significant amounts of collateral underthat could affect its agreements with counterpartiesliquidity and could experience higher borrowing costs (All Registrants).
Generation’s business is subject to credit quality standards that could require market participants to post collateral for their obligations. If Generation were to be downgraded or lose its investment grade credit rating (based on its senior unsecured debt rating) or otherwise fail to satisfy the credit standards of trading counterparties, it would be required under its hedging arrangements to provide collateral in the form of letters of credit or cash, which could have a material adverse effect upon its liquidity. The amount of collateral required to be provided by Generation at any point in time depends on a variety of factors, including (1) the notional amount of the applicable hedge, (2) the nature of counterparty and related agreements, and (3) changes in power or other commodity prices. In addition, if Generation were downgraded, it could experience higher borrowing costs as a result of the downgrade. Generation could experience a downgrade in its ratings if any of the credit rating agencies concludes that the level of business or financial risk and overall creditworthiness of the power generation industry in general, or Generation in particular, has deteriorated. Changes in ratings methodologies by the credit rating agencies could also have a negative impact on the ratings of Generation. Generation has project-specific financing arrangements and must meet the requirements of various agreements relating to those financings.  Failure to meet those arrangements could give rise to a project-specific financing default which, if not cured or waived, could result in the specific project being required to repay the associated debt or other borrowings earlier than otherwise anticipated, and if such repayment were not made, the lenders or security holders would generally have broad remedies, including rights to foreclose against the project assets and related collateral or to force the Exelon subsidiaries in the project-specific financings to enter into bankruptcy proceedings.  
The Utility Registrants' operating agreements with PJM and PECO's, BGE's, and DPL's natural gas procurement contracts contain collateral provisions that are affected by their credit rating and market

prices. If certain wholesale market conditions were to exist and the Utility Registrants were to lose their investment grade credit ratings (based on their senior unsecured debt ratings), they would be required to provide collateral in the forms of letters of credit or cash, which could have a material adverse effect upon their remaining sources of liquidity. PJM collateral posting requirements will generally increase as market prices rise and decrease as market prices fall. Collateral posting requirements for PECO, BGE, and DPL, with respect to their natural gas supply contracts, will generally increase as forward market prices fall and decrease as forward market prices rise. Given the relationship to forward market prices, contract collateral requirements can be volatile. In addition, ifIf the Utility Registrants were downgraded, they could experience higher borrowing costs as a result of the downgrade.
A Utility Registrant could experience a downgrade in its ratings if any of the credit rating agencies concludes that the level of business or financial risk and overall creditworthiness of the utility industry in general, or a Utility Registrant in particular, has deteriorated. A Utility Registrant could experience a downgrade if its current regulatory environment becomes less predictable by materially lowering returns for the Utility Registrant or adopting other measures to limit utility rates. Additionally, the ratings for a Utility Registrant could be downgraded if its financial results are weakened from current levels due to weaker operating performance or due to a failure to properly manage its capital structure. In addition, changes in ratings methodologies by the agencies could also have aan adverse negative impact on the ratings of the Utility Registrants.
The Utility Registrants conduct their respective businesses and operate under governance models and other arrangements and procedures intended to assure that the Utility Registrants are treated as separate, independent companies, distinct from Exelon and other Exelon subsidiaries in order to isolate the Utility Registrants from Exelon and other Exelon subsidiaries in the event of financial difficulty at Exelon or another Exelon subsidiary. These measures (commonly referred to as “ring-fencing”) could help avoid or limit a downgrade in the credit ratings of the Utility Registrants in the event of a reduction in the credit rating of Exelon. Despite these ring-fencing measures, the credit ratings of the Utility Registrants could remain linked, to some degree, to the credit ratings of Exelon. Consequently, a reduction in the credit rating of Exelon could result in a reduction of the credit rating of some or all of the Utility Registrants. A reduction in the credit rating of a Utility Registrant could have a material adverse effect on the Utility Registrant.
See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources — Credit Matters and Cash Requirements Market Conditions and Security Ratings for furtheradditional information regarding the potential impacts of credit downgrades on the Registrants’ cash flows.
Generation’s financial performance could be negatively affected by price volatility, availability and other risk factors associated with the procurement
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Generation depends on nuclear fuel and fossil fuels to operate most of its generating facilities. Nuclear fuel is obtained predominantly through long-term uranium supply contracts, contracted conversion services, contracted enrichment services, or a combination thereof, and contracted fuel fabrication services. Natural gas and oil are procured for generating plants through annual, short-term and spot-market purchases. The supply markets for nuclear fuel, natural gas and oil are subject to price fluctuations, availability restrictions and counterparty default that could negatively affect the results of operations, cash flows or financial position for Generation.

Generation’s risk management policies cannot fully eliminate the risk associated with its commodity trading activities (Exelon and Generation).
Generation’s asset-based power position as well as its power marketing, fuel procurement and other commodity trading activities expose Generation to risks of commodity price movements. Generation buys and sells energy and other products and enters into financial contracts to manage risk and hedge various positions in Generation’s power generation portfolio. Generation is exposed to volatility in financial results for unhedged positions as well as the risk of ineffective hedges. Generation attempts to manage this exposure through enforcement of established risk limits and risk management procedures. These risk limits and risk management procedures may not work as planned and cannot eliminate all risks associated with these activities. Even when its policies and procedures are followed, and decisions are made based on projections and estimates of future performance, results of operations could be diminished if the judgments and assumptions underlying those decisions prove to be incorrect. Factors, such as future prices and demand for power and other energy-related commodities, become more difficult to predict and the calculations become less reliable the further into the future estimates are made. As a result, Generation cannot predict the impact that its commodity trading activities and risk management decisions could have on its business, results of operations, cash flows or financial position.
Financial performance and load requirements could be adversely affected if Generation is unable to effectively manage its power portfolio (Exelon and Generation).
A significant portion of Generation’s power portfolio is used to provide power under procurement contracts with the Utility Registrants and other customers. To the extent portions of the power portfolio are not needed for that purpose, Generation’s output is sold in the wholesale power markets. To the extent its power portfolio is not sufficient to meet the requirements of its customers under the related agreements, Generation must purchase power in the wholesale power markets. Generation’s financial results could be negatively affected if it is unable to cost-effectively meet the load requirements of its customers, manage its power portfolio or effectively address the changes in the wholesale power markets.
Challenges to tax positions taken by the Registrants as well as tax law changes and the inherent difficulty in quantifying potential tax effects of business decisions, could impact the Registrants’ results of operations, cash flows or financial positions. (All Registrants).

Corporate Tax Reform
On December 22, 2017, President Trump signed into law the TCJA. See Note 14 - Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
While the Registrants’ current tax accounting and future expectations are based on management’s present understanding of the provisions under the TCJA, further interpretive guidance of the TCJA’s provisions could result in further adjustments that could have a material impact to the Registrants’ future results of operations, cash flows or financial positions.
In addition, as allowed under SEC Staff Accounting Bulletin No. 118 (SAB 118), the Registrants have recorded provisional income tax amounts as of December 31, 2017 for changes pursuant to the TCJA related to depreciation for which the impacts could not be finalized upon issuance of the Registrants’ financial statements, but reasonable estimates could be determined.  However, the provisional amounts may change as the Registrants finalize their analysis and computations and such changes could be material to the Registrants’ future results of operations, cash flows or financial positions.
The Utility Registrants have made their best estimate regarding the probability and timingimpacts of settlements of net regulatory liabilities established pursuant to the TCJA. However, the amount and timing of the settlements may change based on decisions and actions by the rate regulators, which could

have a material impact on the Utility Registrants’ future results of operations, cash flowssignificant economic downturns or financial positions.
Tax reserves
The Registrants are required to make judgments in order to estimate their obligations to taxing authorities. These tax obligations include income, real estate, sales and use and employment-related taxes and ongoing appeal issues related to these tax matters. These judgments include reserves established for potential adverse outcomes regarding tax positions that have been taken that could be subject to challenge by the tax authorities. See Note 1 — Significant Accounting Policies and Note 14 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Increases in customer rates, including increases in the cost of purchased power and increases in natural gas prices for the Utility Registrants, and the impact of economic downturns could lead to greater expense for uncollectible customer balances. Additionally, increased rates, could lead to decreased volumes delivered. Both of these factors could decrease Generation’sdelivered and the Utility Registrants' results from operations, cash flows or financial positionsincreased expense for uncollectible customer balances (All Registrants).
The impacts of significant economic downturns on the Utility Registrants' customers, such as unemployment for residential customers and less demand for products and services provided by commercial and industrial customers and the related regulatory limitations on residential service terminations for the Utility Registrants, could result in an increase in the number of uncollectible customer balances', which would negatively affectbalances and related expense. Further, increases in customer rates, including those related to increases in purchased power and natural gas prices, could result in declines in customer usage and lower revenues for the Utility Registrants' results of operations, cash flows or financial positions. Generation's customer-facing energy delivery activities face similar economic downturn risks, such as lower volumes sold and increased expense for uncollectible customer balances which could negatively affect Generation's results of operations, cash flows or financial position. Registrants that do not have decoupling mechanisms.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK for further discussion ofadditional information on the Registrants’ credit risk.
The UtilityPublic health crises, epidemics, or pandemics, such as COVID-19 could negatively impact the Registrants' current procurement plans include purchasing power through contracted suppliers andresults (All Registrants).
COVID-19 disrupted economic activity in the spot market. ComEd’s, PECO’sRegistrants’ respective markets and ACE's costs of purchased power are charged to customers without a return or profit component. BGE's, Pepco's and DPL's SOS rates charged to customers recover their wholesale power supply costs and include a return component. For PECO and DPL, purchased natural gas costs are charged to customers with no return or profit component. For BGE, purchased natural gas costs are charged to customers using a MBR mechanism that compares the actual cost of gas to a market index. The difference between the actual cost and the market index is shared equally between shareholders and customers. Purchased power and natural gas prices fluctuate based on their relevant supply and demand. Significantly higher rates related to purchased power and natural gas could result in declines in customer usage, lower revenues and potentially additional uncollectible accounts expense for the Utility Registrants. In addition, any challenges by the regulators or the Utility Registrants as to the recoverability of these costs could have a material adverse effect onnegatively affected the Registrants’ results of operations cash flowsin 2020. However, the financial impacts were not material for the years ended December 31, 2021 and December 31, 2022, other than the 2022 impairment disclosure within Note 11 — Asset Impairments. The Registrants cannot predict the full extent of the impacts of COVID-19, which will depend on, among other things, the rate, and public perceptions of the effectiveness, of vaccinations and rate of resumption of business activity. In addition, any future widespread pandemic or financial positions. Also,other local or global health issue could adversely affect our vendors, competitors or customers and customer demand as well as the Utility Registrants' cash flowsRegistrants’ ability to operate their transmission and distribution assets. See Item 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - Executive Overview for additional information.
The Registrants could be adverselynegatively affected by differences between the time period when electricity and natural gas are purchased and the ultimate recovery from customers.
The effectsimpacts of weather could impact the Registrants’ results of operations, cash flows or financial positions (All Registrants).
Weather conditions directly influence the demand for electricity and natural gas and affect the price of energy commodities. Temperatures above normal levels in the summer tend to increase summer cooling electricity demand and revenues, and temperatures below normal levels in the winter tend to increase winter heating electricity and gas demand and revenues. Moderate temperatures adversely affect the usage of energy and resulting operating revenues at PECO and DPL and ACE.Delaware. Due to revenue decoupling,

operating revenues from electric distribution at ComEd, BGE, Pepco, and DPL Maryland, recognize revenues at MDPSC and DCPSC-approved levels per customer, regardless of what actual distribution volumes are for a billing period, andACE are not affected by actual weather with the exception of major storms. Pursuant to the Future Energy Jobs Act (FEJA), beginning in 2017, customer rates for ComEd are adjusted to eliminate the favorable and unfavorable impacts of weather and customer usage patterns on distribution revenue.abnormal weather.
Extreme weather conditions or damage resulting from storms could stress the Utility Registrants' transmission and distribution systems, communication systems, and technology, resulting in increased maintenance and capital costs and limiting each company’s ability to meet peak customer demand. These extreme conditions could have detrimental effects on the Utility Registrants' results of operations, cash flows or financial positions. First and third quarter financial results, in particular, are substantially dependent on weather conditions, and could make period comparisons less relevant.
Generation’s operations are also affected by weather, which affects demand for electricityClimate change projections suggest increases to summer temperature and humidity trends, as well as operating conditions. Tomore erratic precipitation and storm patterns over the extent that weather is warmerlong-term in the summer or colderareas where the Utility Registrants have transmission and distribution assets. The frequency in the winter than assumed, Generation could require greater resources to meet its contractual commitments. Extremewhich weather conditions or stormsemerge outside the current expected climate norms could affect the availability of generation and its transmission, limiting Generation’s abilitycontribute to source or send power to where it is sold. In addition, drought-like conditions limiting water usage could impact Generation’s ability to run certain generatingweather-related impacts discussed above.
Long-lived assets, at full capacity. These conditions, which cannot be accurately predicted, could have an adverse effect by causing Generation to seek additional capacity at a time when wholesale markets are tight or to seek to sell excess capacity at a time when markets are weak.
Certain long-lived assetsgoodwill, and other assets recorded on the Registrants’ statements of financial position could become impaired which would result in write-offs of the impaired amounts (All Registrants).
Long-lived assets represent the single largest asset class on the Registrants’ statements of financial position. Specifically, long-lived assets account for 64%, 51%, 70%, 79%, 84%, 77%, 82% and 79% of total assets for Exelon, Generation, ComEd, PECO, BGE, Pepco, DPL and ACE, respectively, as of December 31, 2017. In addition, Exelon, ComEd, and GenerationPHI have significant balances related to unamortized energy contracts, as further disclosed in Note 10 — Intangible Assets of the Combined Notes to Consolidated Financial Statements. material goodwill balances.
The Registrants evaluate the recoverability of the carrying value of long-lived assets to be held and used whenever events or circumstances indicating a potential impairment exist. Factors such as, but not limited to, the business climate, including current and future energy and market conditions, environmental regulation, and the condition of assets are considered when evaluating long-lived assetsconsidered.
ComEd and PHI perform an assessment for potential impairment. Anpossible impairment of their goodwill at least annually or more frequently if an event occurs or circumstances change that would require the Registrants tomore likely than not reduce the carrying value of the long-lived asset to fair value through a non-cash charge to expense by the amount of the impairment, and such an impairment could have a material adverse impact on the Registrants’ results of operations, cash flows or financial positions.
As of December 31, 2017, Exelon's $6.7 billion carrying amount of goodwill primarily consists of $2.6 billion at ComEd relating to the acquisition of ComEd in 2000 upon the formation of Exelon and $4.0 billion at PHI primarily resulting from Exelon's acquisition of PHI in the first quarter of 2016. Under GAAP, goodwill remains at its recorded amount unless it is determined to be impaired, which is generally based upon an annual analysis that compares the implied fair value of the goodwill to its
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reporting units below their carrying value. If an impairment occurs, the amount of the impaired goodwill will be written-off to expense, which will also reduce equity. The actual timing and amounts of any goodwill impairments will depend on many sensitive, interrelated and uncertain variables. Such an impairment would result in a non-cash charge to expense, which could have a material adverse impact on Exelon's, ComEd's, and PHI's results of operations.

amount. Regulatory actions or changes in significant assumptions, including discount and growth rates, utility sector market performance and transactions, projected operating and capital cash flows for ComEd’s, Pepco’s, DPL’s, and ACE’s business, and the fair value of debt, could potentially result in future impairments of Exelon’s, ComEd's, and PHI’s and ComEd’sgoodwill.
An impairment would require the Registrants to reduce the carrying value of the long-lived asset or goodwill which could be material.
to fair value through a non-cash charge to expense by the amount of the impairment. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Critical Accounting Policies and Estimates, and Note 67 — Property, Plant, and Equipment, Note 711Impairment of Long-Lived Assets and IntangiblesAsset Impairments, and Note 1012 — Intangible Assets of the Combined Notes to the Consolidated Financial Statements for additional discussioninformation on long-lived asset impairments and goodwill impairments.
Exelon and its subsidiaries at times guarantee the performance of third parties, whichThe Registrants could result inincur substantial costs in the event of non-performance by such third parties. In addition,third-parties under indemnification agreements, or when the Registrants could have rights under agreements which obligate third parties to indemnify the Registrants for various obligations, and the Registrants could incur substantial costs in the event that the applicable Registrant is unable to enforce those agreements or the applicable third-party is otherwise unable to perform. The Registrants could also incur substantial costs in the event that third parties are entitled to indemnification related to environmental or other risks in connection with the acquisition and divestiture of assetsguaranteed their performance (All Registrants).
Some of the Registrants have issued guarantees of the performance of third parties, which obligate the Registrant or its subsidiaries to perform in the event that the third parties do not perform. In the event of non-performance by those third parties, a Registrant could incur substantial cost to fulfill its obligations under these guarantees. Such performance guarantees could have a material impact on the results of operations, cash flows or financial position of the Registrant. Some of the Registrants have issued indemnities to third parties regarding environmental or other matters in connection with purchases and sales of assets and a Registrant could incur substantial costs to fulfill its obligations under these indemnities and such costs could adversely affect a Registrant’s results of operations, cash flows or financial position.
Some of theThe Registrants have entered into various agreements with counterparties that require those counterparties to reimburse a Registrant and hold it harmless against specified obligations and claims. To the extent that any of these counterparties are affected by deterioration in their creditworthiness or the agreements are otherwise determined to be unenforceable, the affected Registrant could be held responsible for the obligations, which could adversely impact that Registrant’s results of operations, cash flows or financial position.obligations. Each of the Utility Registrants has transferred its former generation business to a third party and in each case the transferee may havehas agreed to assume certain obligations and to indemnify the applicable Utility Registrant for such obligations. In connection with the restructurings under which ComEd, PECO, and BGE transferred their generating assets to Generation, GenerationConstellation, Constellation assumed certain of ComEd’s, PECO’s, and BGE's rights and obligations with respect to their former generation businesses. Further, ComEd, PECO, and BGE may have entered into agreements with third parties under which the third-party agreed to indemnify ComEd, PECO, or BGE for certain obligations related to their respective former generation businesses that have been assumed by GenerationConstellation as part of the restructuring. If the third-party, GenerationConstellation, or the transferee of Pepco's, DPL's, or ACE’s generation facilities experienced events that reduced its creditworthiness or the indemnity arrangement became unenforceable, the applicable Utility Registrant could be liable for any existing or future claims, which could impact that Utility Registrant's results of operations, cash flows or financial position.claims. In addition, the Utility Registrants may have residual liability under certain laws in connection with their former generation facilities.  For example, under CERCLA, former owners of property may retain certain liability for environmental claims and remediation. 
The Registrants have issued indemnities to third parties to whomregarding environmental or other matters in connection with purchases and sales of assets, including several of the Utility Registrants transferredin connection with Constellation's absorption of their former generation facilities maygenerating assets. The Registrants could incur substantial costs to fulfill their obligations under these indemnities.
The Registrants have agreed to indemnifyissued guarantees of the Utility Registrants for all or a portion

performance of such liability but if such third parties, fail or are unablewhich obligate the Registrants to perform if the third parties do not perform. In the event of non-performance by those third parties, the Registrants could incur substantial cost to fulfill their obligations under the indemnity, the applicable Utility Registrant may be liable for certain remediation costs.these guarantees.
Risks Related to Legislative, Regulatory, and LegislativeLegal Factors
The Registrants’ generation and energy deliveryRegistrants' businesses are highly regulated and electric and gas revenue and earnings could be subject tonegatively affected by legislative and/or regulatory and legislative actions that adversely affect their results of operations, cash flows or financial positions. Fundamental changes in regulation or legislation or violation of tariffs or market rules and anti-manipulation laws, could disrupt the Registrants’ business plans and adversely affect their operations, cash flows or financial results (All Registrants).

Substantially allSubstantial aspects of the Registrants' businesses of the Registrants are subject to comprehensive Federal or state regulation and legislation. Further, Exelon’s and Generation’s results of operations, cash flows legislation and/or financial positions are significantly affected by Generation's sales and purchases of commodities at market-based rates, as opposed to cost-based or other similarly regulated rates, and Exelon’s and theregulation.
The Utility Registrants' results of operations, cash flows orconsolidated financial positionsstatements are heavily dependent on the ability of the Utility Registrants to recover their costs for the retail purchase, transmission, and distribution of power and natural gas to their customers. Similarly, there is risk that financial market regulations could increase the Registrants’ compliance costs and limit their ability to engage in certain transactions. In the planning and management of operations, the Registrants must address the effects of regulation on their businesses and changes in the regulatory framework, including initiatives by Federal and state legislatures, RTOs, exchanges, ratemaking agencies and taxing authorities. Additionally, the Registrants need to be cognizant and understand rule changes or Registrant actions that could result in potential violation of tariffs, market rules and anti-manipulation laws.
Fundamental changes in regulations or other adverse legislative actions affecting the Registrants’ businesses would require changes in their business planning models and operations and could negatively impact their respective results of operations, cash flows or financial positions.

State and federal regulatory and legislative developments related to emissions, climate change, tax reform, capacity market mitigation, energy price information, resilience, fuel diversity and RPS could also significantly affect Exelon’s and Generation’s results of operations, cash flows or financial positions. Various legislative and regulatory proposals to address climate change through GHG emission reductions, if enacted, could result in increased costs to entities that generate electricity through carbon-emitting fossil fuels, which could increase the market price at which all generators in a region, including Generation, could sell their output, thereby increasing the revenue Generation could realize from its low-carbon nuclear assets. Conversely, existing or new regulations intended to reduce GHG emissions could be rolled back, allowing fossil fueled facilities which were otherwise scheduled to retire to continue to operate if economical. This could result in decreases in market prices thereby reducing Generation’s revenues. However, national regulation or legislation addressing climate change through an RPS could also increase the pace of development of wind energy facilities in the Midwest, which could put downward pressure on wholesale market prices for electricity from Generation’s Midwest nuclear assets, partially offsetting any additional value Exelon and Generation might derive from Generation’s nuclear assets under a carbon constrained regulatory regime that might exist in the future. Similarly, final regulations under Section 111(d) of the Clean Air Act may not provide sufficient incentives for states to utilize carbon-free nuclear power as a means of meeting GHG reduction requirements, while continuing a policy of favoring renewable energy sources. Current state level climate change and renewable regulation is already providing incentives for regional wind development.operations. The Registrants cannot predict when or whether any of these various legislative andor regulatory proposals could become law or what their effect willwould be on the Registrants.

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Generation could be negatively affected by possible Federal or state legislative or regulatory actions that could affect the scope and functioning of the wholesale markets (Exelon and Generation).
Federal and state legislative and regulatory bodies are facing pressures to address consumer concerns, or are themselves raising concerns, that energy prices in wholesale markets are too high or insufficient generation is being built because the competitive model is not working and, therefore, are considering some form of re-regulation or some other means of reducing wholesale market prices or subsidizing new generation. Generation is dependent on robust and competitive wholesale energy markets to achieve its business objectives.
Approximately 61% of Generation’s generating resources, which include directly owned assets and capacity obtained through long-term contracts, are located in the area encompassed by PJM. Generation’s future results of operations will depend on (1) FERC’s continued adherence to and support for, policies that favor the preservation of competitive wholesale power markets and recognize the value of zero-carbon electricity and resiliency and (2) the absence of material changes to market structures that would limit or otherwise negatively affect market competition. Generation could also be adversely affected by state laws, regulations or initiatives designed to reduce wholesale prices artificially below competitive levels or to subsidize existing or new generation.
FERC’s requirements for market-based rate authority, established in Order 697 and 816 and related subsequent orders, could pose a risk that Generation may no longer satisfy FERC’s tests for market-based rates. Since Order 697 became final in June 2007, Generation has obtained orders affirming Generation’s authority to sell at market-based rates and none denying that authority.
The Dodd-Frank Wall Street Reform and Consumer Protection Act (the Act) was enacted in July 2010. The part of the Act that affects Exelon most significantly is Title VII, which is known as the Dodd-Frank Wall Street Transparency and Accountability Act (Dodd-Frank). Dodd-Frank requires a new regulatory regime for over-the-counter swaps (swaps), including mandatory clearing for certain categories of swaps, incentives to shift swap activity to exchange trading, margin and capital requirements, and other obligations designed to promote transparency. The primary aim of Dodd-Frank is to regulate the key intermediaries in the swaps market, which entities are swap dealers (SDs), major swap participants (MSPs), or certain other financial entities, but the law also applies to a lesser degree to end-users of swaps. The CFTC’s Dodd-Frank regulations generally preserved the ability of end users in the energy industry to hedge their risks using swaps without being subject to mandatory clearing, and many of the other substantive regulations that apply to SDs, MSPs, and other financial entities. Generation manages, and expects to be able to continue to manage, its commercial activity to ensure that it does not have to register as an SD or MSP or other type of covered financial entity.
There are some rulemaking proceedings that have not yet been finalized, in particular, proposed rules on position limits that would apply to both Exchange-traded futures contracts and economically-equivalent over-the-counter swaps. It is possible that those rules will be finalized by the end of 2018. Although the company would incur some costs associated with monitoring and compliance with such rules, it does not expect the rules to have a material impact on its business operations.
The Utility Registrants could also be subject to some Dodd-Frank requirements to the extent they were to enter into swaps. However, at this time, management of the Utility Registrants continue to expect that their companies will not be materially affected by Dodd-Frank.

Generation’s affiliation with the Utility Registrants, together with the presence of a substantial percentage of Generation’s physical asset base within the Utility Registrants' service territories, could increase Generation’s cost of doing business to the extent future complaints or challenges regarding the Utility Registrants' retail rates result in settlements or legislative or regulatory requirements funded in part by Generation (Exelon and Generation).
Generation has significant generating resources within the service areas of the Utility Registrants and makes significant sales to each of them. Those facts tend to cause Generation to be directly affected by developments in those markets. Government officials, legislators and advocacy groups are aware of Generation’s affiliation with the Utility Registrants and its sales to each of them. In periods of rising utility rates, particularly when driven by increased costs of energy production and supply, those officials and advocacy groups could question or challenge costs and transactions incurred by the Utility Registrants with Generation, irrespective of any previous regulatory processes or approvals underlying those transactions. These challenges could increase the time, complexity and cost of the associated regulatory proceedings, and the occurrence of such challenges could subject Generation to a level of scrutiny not faced by other unaffiliated competitors in those markets. In addition, government officials and legislators could seek ways to force Generation to contribute to efforts to mitigate potential or actual rate increases, through measures such as generation-based taxes and contributions to rate-relief packages.
The Registrants could incur substantial costs to fulfill their obligations related to environmental and other matters (All Registrants).
The businesses which the Registrants operate are subject to extensive environmental regulation and legislation by local, state and Federal authorities. These laws and regulations affect the manner in which the Registrants conduct their operations and make capital expenditures including how they handle air and water emissions and solid waste disposal. Violations of these emission and disposal requirements could subject the Registrants to enforcement actions, capital expenditures to bring existing facilities into compliance, additional operating costs for remediation and clean-up costs, civil penalties and exposure to third parties’ claims for alleged health or property damages or operating restrictions to achieve compliance. In addition, the Registrants are subject to liability under these laws for the remediation costs for environmental contamination of property now or formerly owned by the Registrants and of property contaminated by hazardous substances they generate. The Registrants have incurred and expect to incur significant costs related to environmental compliance, site remediation and clean-up. Remediation activities associated with MGP operations conducted by predecessor companies are one component of such costs. Also, the Registrants are currently involved in a number of proceedings relating to sites where hazardous substances have been deposited and could be subject to additional proceedings in the future.
If application of Section 316(b) of the Clean Water Act, which establishes a national requirement for reducing the adverse impacts to aquatic organisms at existing generating stations, requires the retrofitting of cooling water intake structures at Salem or other Exelon power plants, this development could result in material costs of compliance. See Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information.
Additionally, Generation is subject to exposure for asbestos-related personal injury liability alleged at certain current and formerly owned generation facilities. Future legislative action could require Generation to make a material contribution to a fund to settle lawsuits for alleged asbestos-related disease and exposure.
In some cases, a third-party who has acquired assets from a Registrant has assumed the liability the Registrant could otherwise have for environmental matters related to the transferred property. If the transferee is unable, or fails, to discharge the assumed liability, a regulatory authority or injured person

could attempt to hold the Registrant responsible, and the Registrant’s remedies against the transferee could be limited by the financial resources of the transferee. See Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information.
Changes in the Utility Registrants' respective terms and conditions of service, including their respective rates, along with adoption of new rate structures and constructs, or establishment of new rate cases, are subject to regulatory approval proceedings and/or negotiated settlements that are at times contentious, lengthy, and subject to appeal, which lead to uncertainty as to the ultimate result, and which could introduce time delays in effectuating rate changes (Exelon and the Utility(All Registrants).
The Utility Registrants are required to engage in regulatory approval proceedings as a part of the process of establishing the terms and rates for their respective services.services, adoption of new rate structures and constructs or establishment of new rate cases. These proceedings typically involve multiple parties, including governmental bodies and officials, consumer advocacy groups, and various consumers of energy, who have differing concerns but who have the common objective of limiting rate increases or even reducing rates. The proceedings generally have timelines that may not be limited by statute. Decisions are subject to appeal, potentially leading to additional uncertainty associated with the approval proceedings. The potential duration of such proceedings creates a risk that rates ultimately approved by the applicable regulatory body may not be sufficient for a Utility Registrant to recover its costs by the time the rates become effective. Established rates are also subject to subsequent prudency reviews by state regulators, whereby various portions of rates could be adjusted, subject to refund or disallowed, including recovery mechanisms for costs associated with the procurement of electricity or gas, bad debt,credit losses, MGP remediation, smart grid infrastructure, and energy efficiency and demand response programs.
In certain instances, the Utility Registrants could agree to negotiated settlements related to various rate matters, customer initiatives, or franchise agreements. These settlements are subject to regulatory approval.
The Utility Registrants cannot predict the ultimate outcomes of any settlements or the actions by Illinois, Pennsylvania, Maryland, the District of Columbia, Delaware, New Jersey or Federal regulators in establishing rates, including the extent, if any, to which certain costs such as significant capital projects will be recovered or what rates of return will be allowed. Nevertheless, the expectation is that the Utility Registrants will continue to be obligated to deliver electricity to customers in their respective service territories and will also retain significant default service obligations, referred to as POLR, DSP, SOS and BGS, to provide electricity and natural gas to certain groups of customers in their respective service areas who do not choose an alternative supplier. The ultimate outcome and timing of regulatory rate proceedings have a significant effect on the ability of the Utility Registrants as applicable, to recover their costs or earn an adequate return and could have a material adverse effect on the Utility Registrants' results of operations, cash flows or financial positions.return. See Note 3Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for information regarding rate proceedings.
Federal or additional state RPS and/or energy conservation legislation, along with energy conservation by customers, could negatively affect the results of operations, cash flows or financial positions of Generation and the Utility Registrants (All Registrants).
Changes to current state legislation or the development of Federal legislation that requires the use of renewable and alternate fuel sources, such as wind, solar, biomass and geothermal, could significantly impact Generation and the Utility Registrants, especially if timely cost recovery is not allowed for Utility Registrants. The impact could include increased costs for RECs and purchased power and increased rates for customers.

Federal and state legislation mandating the implementation of energy conservation programs that require the implementation of new technologies, such as smart meters and smart grid, have increased capital expenditures and could significantly impact the Utility Registrants if timely cost recovery is not allowed. Furthermore, regulated energy consumption reduction targets and declines in customer energy consumption resulting from the implementation of new energy conservation technologies could lead to a decline in the revenues of Exelon, Generation and the Utility Registrants. For additional information, see ITEM 1. BUSINESS — Environmental Regulation — Renewable and Alternative Energy Portfolio Standards.
The impact of not meeting the criteria of the FASB guidance for accounting for the effects of certain types of regulation could be material to Exelon and the Utility Registrants (Exelon and the Utility Registrants).
As of December 31, 2017, Exelon and the Utility Registrants have concluded that the operations of the Utility Registrants meet the criteria of the authoritative guidance for accounting for the effects of certain types of regulation. If it is concluded in a future period that a separable portion of their businesses no longer meets the criteria, Exelon, and the Utility Registrants would be required to eliminate the financial statement effects of regulation for that part of their business. That action would include the elimination of any or all regulatory assets and liabilities that had been recorded in their Consolidated Balance Sheets and the recognition of a one-time charge in their Consolidated Statements of Operations and Comprehensive Income. The impact of not meeting the criteria of the authoritative guidance could be material to the financial statements of Exelon and the Utility Registrants. The impacts and resolution of the above items could lead to an impairment of ComEd's or PHI’s goodwill, which could be significant and at least partially offset the gains at ComEd discussed above. A significant decrease in equity as a result of any changes could limit the ability of the Utility Registrants to pay dividends under Federal and state law and no longer meeting the regulatory accounting criteria could cause significant volatility in future results of operations. See Notes 1 — Significant Accounting Policies, 3 — Regulatory Matters and 10 — Intangible Assets of the Combined Notes to Consolidated Financial Statements for additional information regarding accounting for the effects of regulation, regulatory matters and ComEd’s and PHI's goodwill, respectively.
Exelon and Generation could incur material costs of compliance if Federal and/or state regulation or legislation is adopted to address climate change (Exelon and Generation).
Various stakeholders, including legislators and regulators, shareholders and non-governmental organizations, as well as other companies in many business sectors, including utilities, are considering ways to address the effect of GHG emissions on climate change. If carbon reduction regulation or legislation becomes effective, Exelon and Generation could incur costs either to limit further the GHG emissions from their operations or to procure emission allowance credits. For example, a Federal RPS could increase the cost of compliance by mandating the purchase or construction of more expensive supply alternatives. For more information regarding climate change, see ITEM 1. BUSINESS — Global Climate Change and Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.information.
The Registrants could be subject to higher costs and/or penalties related to mandatory reliability standards, including the likely exposure of the Utility Registrants to the results of PJM’s RTEP and NERC compliance requirements (All Registrants).
As a result of the Energy Policy Act of 2005,The Utility Registrants as users, owners, and operators of the bulk power transmission system including Generation and the Utility Registrants, are subject to mandatory reliability standards promulgated by NERC and enforced by FERC. As operators of natural gas distribution systems, PECO, BGE and DPL are also subject to mandatory reliability standards of the U.S. Department of Transportation. The standards are based on the functions that need to be performed to ensure the

bulk power system operates reliably and are guided by reliability and market interface principles. Compliance with or changes in the reliability standards could subject the Registrants to higher operating costs and/or increased capital expenditures. In addition, the ICC, PAPUC, MDPSC, DCPSC, DPSCDEPSC, and NJBPU impose certain distribution reliability standards on the Utility Registrants. If the Utility Registrants were found not to be in compliancenon-compliance with the Federal and state mandatory reliability standards, they could be subject to remediation costs as well as sanctions, which could include substantial monetary penalties.
The Utility Registrants as transmission ownerscould incur substantial costs to fulfill their obligations related to environmental and other matters (All Registrants).
The Registrants are subject to NERC compliance requirements. NERC provides guidance to transmission owners regarding assessments of transmission lines. The resultsextensive environmental regulation and legislation by local, state, and Federal authorities. These laws and regulations affect the way the Registrants conduct their operations and make capital expenditures including how they handle air and water emissions, hazardous and solid waste, and activities affecting surface waters, groundwater, and aquatic and other species. Violations of these assessmentsrequirements could requiresubject the Registrants to enforcement actions, capital expenditures to bring existing facilities into compliance, additional operating costs for remediation and clean-up costs, civil penalties and exposure to third parties’ claims for alleged health or property damages, or operating restrictions to achieve compliance. In addition, the Registrants are subject to liability under these laws for the remediation costs for environmental contamination of property now or formerly owned by the Registrants and of property contaminated by hazardous substances they generated or released. Remediation activities associated with MGP operations conducted by predecessor companies are one component of such costs. Also, the Registrants are currently involved in several proceedings relating to sites where hazardous substances have been deposited and could be subject to additional proceedings in the future. See ITEM 1. BUSINESS — Environmental Matters and Regulation for additional information.
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The Registrants could be negatively affected by federal and state RPS and/or energy conservation legislation, along with energy conservation by customers (All Registrants).
Changes to current state legislation or the development of Federal legislation that requires the use of clean, renewable, and alternate fuel sources could significantly impact the Utility Registrants, especially if timely cost recovery is not allowed.
Federal and state legislation mandating the implementation of energy conservation programs that require the implementation of new technologies, such as smart meters and smart grid, could increase capital expenditures and could significantly impact the Utility Registrants consolidated financial statements if timely cost recovery is not allowed. These energy conservation programs, regulated energy consumption reduction targets, and new energy consumption technologies could cause declines in customer energy consumption and lead to incur incremental capitala decline in the Registrants' earnings, if timely recovery is not allowed. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Renewable and Clean Energy Standards and "The Registrants are potentially affected by emerging technologies that could over time affect or operatingtransform the energy industry" above for additional information.
The Registrants could be negatively affected by challenges to tax positions taken, tax law changes, and maintenance expendituresthe inherent difficulty in quantifying potential tax effects of business decisions. (All Registrants).
The Registrants are required to ensuremake judgments to estimate their transmission lines meet NERC standards.
obligations to taxing authorities, which includes general tax positions taken and associated reserves established. Tax obligations include, but are not limited to: income, real estate, sales and use, and employment-related taxes and ongoing appeal issues related to these tax matters. All tax estimates could be subject to challenge by the tax authorities. Additionally, earnings may be impacted due to changes in federal or local/state tax laws, and the inherent difficulty of estimating potential tax effects of ongoing business decisions. See Note 31Regulatory MattersSignificant Accounting Policies and Note 2313Commitments and ContingenciesIncome Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Legal proceedings could result in a negative outcome, which the Registrants cannot predict (All Registrants).
The Registrants are involved in legal proceedings, claims, and litigation arising out of their business operations. The material ones are summarized in Note 18Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Adverse outcomes in these proceedings could require significant expenditures, result in lost revenue, or restrict, or disrupt business activities.
The Registrants could be subject to adverse publicity and reputational risks, which make them vulnerable to negative customer perception and could lead to increased regulatory oversight or other consequences (All Registrants).
The Registrants have large consumer customer bases and as a result could be the subject of public criticism focused on the operability of their assets and infrastructure and quality of their service.criticism. Adverse publicity of this nature could render legislatures and other governing bodies, public service commissions and other regulatory authorities, and government officialslegislative authorities less likely to view energy companies such as Exelon and its subsidiaries in a favorable light, and could cause Exelon and its subsidiariesthose companies, including the Registrants, to be susceptible to less favorable legislative and regulatory outcomes, as well as increased regulatory oversight and more stringent legislative or regulatory requirements (e.g. disallowances of costs, lower ROEs).requirements.
Exelon and ComEd have received requests for information related to an SEC investigation into their lobbying activities. The imposition of anyoutcome of the foregoinginvestigations could have a material negative impactadverse effect on their reputation and consolidated financial statements (Exelon and ComEd).
On October 22, 2019, the Registrants' business, resultsSEC notified Exelon and ComEd that it had opened an investigation into their lobbying activities in the state of operations, cash flows or financial positions.
Illinois. Exelon and ComEd have cooperated fully, including by providing all information requested by the SEC, and intend to continue to cooperate fully and expeditiously with the SEC. The Registrants cannot predict the outcome of the legal proceedings relatingSEC’s investigation cannot be predicted and could subject Exelon and ComEd to civil penalties, sanctions, or other remedial measures. Any of the foregoing, as well as the appearance of non-compliance with anti-corruption and anti-bribery laws, could have an adverse impact on Exelon’s and ComEd’s reputations or relationships with regulatory and legislative authorities, customers, and other stakeholders, as well as their business activities. An adverse determination could negatively impact their resultsconsolidated financial
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The Registrants are involved in legal proceedings, claims and litigation arising out of their business operations, the most significant of which are summarized instatements. See Note 2318 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Adverse outcomes in these proceedings could require significant expenditures, result in lost revenue or restrict existing business activities, any of which
If ComEd violates its Deferred Prosecution Agreement announced on July 17, 2020, it could have a materialan adverse effect on the Registrants’ resultsreputation and consolidated financial statements of operations, cash flows or financial positions.
Generation could be negatively affected by possible Nuclear Regulatory Commission actions that could affect the operationsExelon and profitability of its nuclear generating fleetComEd (Exelon and Generation)ComEd).
Regulatory risk
A changeOn July 17, 2020, ComEd entered into a Deferred Prosecution Agreement (DPA) with the U.S. Attorney’s Office for the Northern District of Illinois (USAO) to resolve the USAO’s investigation into Exelon’s and ComEd’s lobbying activities in the Atomic Energy ActState of Illinois. Exelon was not made a party to the DPA and the investigation by the USAO into Exelon’s activities ended with no charges being brought against Exelon. Under the DPA, the USAO filed a single charge alleging that ComEd improperly gave and offered to give jobs, vendor subcontracts, and payments associated with those jobs and subcontracts for the benefit of the Speaker of the Illinois House of Representatives and the Speaker’s associates, with the intent to influence the Speaker’s action regarding legislation affecting ComEd’s interests. The DPA provides that the USAO will defer any prosecution of such charge and any other criminal or civil case against ComEd in connection with the applicable regulationsmatters identified therein for a three-year period subject to certain obligations of ComEd, including, but not limited to, the following: (i) payment to the U.S. Treasury of $200 million; (ii) continued full cooperation with the government’s investigation; and (iii) ComEd’s adoption and maintenance of remedial measures involving compliance and reporting undertakings as specified in the DPA. If ComEd is found to have breached the terms of the DPA, the USAO may elect to prosecute, or licenses could requirebring a substantial increasecivil action against, ComEd for conduct alleged in capital expendituresthe DPA or known to the government, which could result in increased operatingfines or decommissioning costspenalties and significantly affect Generation’s results of operations, cash flowscould have an adverse impact on Exelon’s and ComEd’s reputation or financial position. Events at nuclear plants owned by others,relationships with regulatory and legislative authorities, customers and other stakeholders, as well as those owned by Generation, could cause the NRC to initiate such actions.

Spent nuclear fuel storage
The approval of a national repository for the storage of SNF, such as the one previously considered at Yucca Mountain, Nevada, and the timing of such facility opening, will significantly affect the costs associated with storage of SNF, and the ultimate amounts received from the DOE to reimburse Generation for these costs. The NRC’s temporary storage rule (also referred to as the “waste confidence decision”) recognizes that licensees can safely store SNF at nuclear power plants for up to 60 years beyond the original and renewed licensed operating life of the plants.
Any regulatory action relating to the timing and availability of a repository for SNF could adversely affect Generation’s ability to decommission fully its nuclear units. Through May 15, 2014, in accordance with the NWPA and Generation’s contract with the DOE, Generation paid the DOE a fee per kWh of net nuclear generation for the cost of SNF disposal. This fee was discontinued effective May 16, 2014. Until such time as a new fee structure is in effect, Exelon and Generation will not accrue any further costs related to SNF disposal fees. Generation cannot predict what, if any, fee will be established in the future for SNF disposal. However, such a fee could be material to Generation's results of operations, cash flows ortheir consolidated financial position. Generation currently estimates 2030 to be the earliest date when the DOE will begin accepting SNF, which could be delayed by further regulatory action.statements. See Note 2318 — Commitments and Contingencies of the Combined Notes to Consolidated Financial StatementsStatements.
Risks Related to Operational Factors
The Registrants are subject to risks associated with climate change (All Registrants).
The Registrants periodically perform analyses to better understand long-term projections of climate change and how those changes in the physical environments where they operate could affect their facilities and operations. The Registrants primarily operate in the Midwest and Mid-Atlantic of the United States, areas that historically have been prone to various types of severe weather events, and as such the Registrants have well-developed response and recovery programs based on these historical events. However, the Registrants’ physical facilities could be at greater risk of damage as changes in the global climate affect temperature and weather patterns, or be placed at greater risk of damage should climate changes result in more intense, frequent and extreme weather events, elevated levels of precipitation, sea level rise, increased surface water temperatures, and/or other effects. Over time, the Registrants are making additional investments to protect their facilities from physical climate-related risks.
In addition, changes to the climate may impact levels and patterns of demand for energy and related services, which could affect Registrants’ operations. Over time, the Registrants are making additional investments to adapt to changes in operational requirements to manage demand changes and customer expectations caused by climate change.
Climate Change risks include changes to the energy systems due to new technologies, changing customer expectations and/or voluntary GHG goals, as well as local, state, or federal regulatory requirements intended to reduce GHG emissions. The Registrants also periodically perform analyses of potential energy system transition pathways to reduce economy-wide GHG emissions to mitigate climate change. To the extent additional GHG reduction legislation and/or regulation becomes effective at the Federal and/or state levels, the Registrants could incur costs to further limit the GHG emissions from their operations or otherwise comply with applicable requirements. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Climate Change and ITEM 1.A. "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
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The Utility Registrants' operating costs are affected by their ability to maintain the availability and reliability of their delivery and operational systems (All Registrants).
Failures of the equipment or facilities used in the Utility Registrants' delivery systems could interrupt the electric transmission and electric and natural gas delivery, which could result in a loss of revenues and an increase in maintenance and capital expenditures. Equipment or facilities failures can be due to several factors, including natural causes such as weather or information systems failure. Specifically, if the implementation of AMI, smart grid, or other technologies in the Utility Registrants' service territory fail to perform as intended or are not successfully integrated with billing and other information systems, or if any of the financial, accounting, or other data processing systems fail or have other significant shortcomings, the Utility Registrants' financial results could be negatively impacted. In addition, dependence upon automated systems could further increase the risk that operational system flaws or internal and/or external tampering or manipulation of those systems will result in losses that are difficult to detect.
Regulated utilities, which are required to provide service to all customers within their service territory, have generally been afforded liability protections against claims by customers relating to failure of service. Under Illinois law, however, ComEd could be required to pay damages to its customers in some circumstances involving extended outages affecting large numbers of its customers, which could be material.
The Registrants are subject to physical security and cybersecurity risks (All Registrants).
The Registrants face physical security and cybersecurity risks. Threat sources, including sophisticated nation-state actors, continue to seek to exploit potential vulnerabilities in the electric and natural gas utility industry, grid infrastructure, and other energy infrastructures, and these attacks and disruptions, both physical and cyber, are becoming increasingly sophisticated and dynamic. Continued implementation of advanced digital technologies increases the potentially unfavorable impacts of such attacks. Additionally, the U.S. government has warned that the Ukraine conflict may increase the risks of attacks targeting critical infrastructure in the United States.
A security breach of the Registrants' physical assets or information systems or those of the Registrants competitors, vendors, business partners and interconnected entities in RTOs and ISOs, or regulators could materially impact Registrants by, among other things, impairing the availability of electricity and gas distributed by Registrants and/or the reliability of transmission and distribution systems, impairing the availability of vendor services and materials that the Registrants rely on to maintain their operations, or by leading to the SNF obligation.theft or inappropriate release of certain types of information, including critical infrastructure information, sensitive customer, vendor, or employee data, or other confidential data. The risk of these events and security breaches occurring continues to intensify, and while the Registrants have been, and will likely continue to be, subjected to physical and cyber-attacks, to date none have directly experienced a material breach or material disruption to its network or information systems or our operations. However, as such attacks continue to increase in sophistication and frequency, the Registrants may be unable to prevent all such attacks in the future.
Operational FactorsIf a significant security breach were to occur, the Registrants' reputation could be negatively affected, customer confidence in the Registrants or others in the industry could be diminished, or the Registrants could be subject to legal claims, loss of revenues, increased costs, or operations shutdown. Moreover, the amount and scope of insurance maintained against losses resulting from any such security breaches may not be sufficient to cover losses or otherwise adequately compensate for any disruptions to business that could result.
The Utility Registrants' deployment of smart meters throughout their service territories could increase the risk of damage from an intentional disruption of the system by third parties.
In addition, new or updated security regulations or unforeseen threat sources could require changes in current measures taken by the Registrants or their business operations and could adversely affect their consolidated financial statements.
The Registrants’ employees, contractors, customers, and the general public could be exposed to a risk of injury due to the nature of the energy industry (All Registrants).
Employees and contractors throughout the organization work in, and customers and the general public could be exposed to, potentially dangerous environments near theirthe Registrants’ operations. As a result, employees,
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contractors, customers, and the general public are at some risk for serious injury, including loss of life. These risks include nuclear accidents, dam failure, gas explosions, pole strikes, and electric contact cases.
Natural disasters, war, acts and threats of terrorism, pandemic, and other significant events could negatively impact the Registrants' results of operations, their ability to raise capital and their future growth (All Registrants).
Generation’s fleet of power plants and theThe Utility Registrants' distribution and transmission infrastructures could be affected by natural disasters such as seismic activity, fires resulting from natural causes such as lightning,and extreme weather events, changes in temperature and precipitation patterns, changes to ground and surface water availability, sea level rise and other related phenomena. Severe weather or other natural disasters could be destructive, which could result in increased costs, including supply chain costs. An extreme weather event within the Utility Registrants’ service areas can also directly affect their capital assets, causing disruption in service to customers due to downed wires and poles or damage to other operating equipment.
Natural disasters and other significant events increase the risk to Generation that the NRC or other regulatory or legislative bodies could change the laws or regulations governing, among other things, operations, maintenance, licensed lives, decommissioning, SNF storage, insurance, emergency planning, security and environmental and radiological matters. In addition, natural disasters could affect the availability of a secure and economical supply of water in some locations, which is essential for Generation’s continued operation, particularly the cooling of generating units. Additionally, natural disasters and other events that have an adverse effect on the economy in general could adversely affect the Registrants’ results of operations, cash flows or financial positions and their ability to raise capital.

The impact that potential terrorist attacks could have on the industry and on Exelonthe Registrants is uncertain. As owner-operators of infrastructure facilities, such as nuclear, fossil and hydroelectric generation facilities and electric and gas transmission and distribution facilities, theThe Registrants face a risk that their operations would be direct targets or indirect casualties of an act of terror. Any retaliatory military strikes or sustained military campaign could affect their operations in unpredictable ways, such as changes in insurance markets and disruptions of fuel supplies and markets, particularly oil. Furthermore, these catastrophic events could compromise the physical or cyber securitycybersecurity of Exelon’sthe Registrants' facilities, which could adversely affect Exelon’sthe Registrants' ability to manage its businesstheir businesses effectively. Instability in the financial markets as a result of terrorism, war, natural disasters, pandemic, credit crises, recession, or other factors also could result in a decline in energy consumption or interruption of fuel or the supply chain, which could adversely affect the Registrants’ results of operations, cash flows or financial positions and their ability to raise capital.chain. In addition, the implementation of security guidelines and measures has resulted in and is expected to continue to result in increased costs.
The Registrants could be significantly affected by the outbreak of a pandemic. Exelon has plans in place to respond to a pandemic. However, depending on the severity of a pandemic and the resulting impacts to workforce and other resource availability, the ability to operate Exelon's generating and transmission and distribution assets could be affected, resulting in decreased service levels and increased costs.adversely affected.
In addition, Exelon maintains a level of insurance coverage consistent with industry practices against property, casualty, and cybersecurity losses subject to unforeseen occurrences or catastrophic events that could damage or destroy assets or interrupt operations. However, there can be no assurance that the amount of insurance will be adequate to address such property and casualty losses.
Generation’s financial performance could be negatively affected by matters arising from its ownership and operation of nuclear facilities (Exelon and Generation).
Nuclear capacity factors
Capacity factors for generating units, particularly capacity factors for nuclear generating units, significantly affect Generation’s results of operations. Nuclear plant operations involve substantial fixed operating costs but produce electricity at low variable costs due to nuclear fuel costs typically being lower than fossil fuel costs. Consequently, to be successful, Generation must consistently operate its nuclear facilities at high capacity factors. Lower capacity factors increase Generation’s operating costs by requiring Generation to produce additional energy from primarily its fossil facilities or purchase additional energy in the spot or forward markets in order to satisfy Generation’s obligations to committed third-party sales, including the Utility Registrants. These sources generally have higher costs than Generation incurs to produce energy from its nuclear stations.
Nuclear refueling outages
In general, refueling outages are planned to occur once every 18 to 24 months. The total number of refueling outages, along with their duration, could have a significant impact on Generation’s results of operations. When refueling outages last longer than anticipated or Generation experiences unplanned outages, capacity factors decrease and Generation faces lower margins due to higher energy replacement costs and/or lower energy sales and higher operating and maintenance costs.
Nuclear fuel quality
The quality of nuclear fuel utilized by Generation could affect the efficiency and costs of Generation’s operations. Remediation actions could result in increased costs due to accelerated fuel amortization, increased outage costs and/or increased costs due to decreased generation capabilities.

Operational risk
Operations at any of Generation’s nuclear generation plants could degrade to the point where Generation has to shut down the plant or operate at less than full capacity. If this were to happen, identifying and correcting the causes could require significant time and expense. Generation could choose to close a plant rather than incur the expense of restarting it or returning the plant to full capacity. In either event, Generation could lose revenue and incur increased fuel and purchased power expense to meet supply commitments. For plants operated but not wholly owned by Generation, Generation could also incur liability to the co-owners. For nuclear plants not operated and not wholly owned by Generation, from which Generation receives a portion of the plants’ output, Generation’s results of operations are dependent on the operational performance of the operators and could be adversely affected by a significant event at those plants. Additionally, poor operating performance at nuclear plants not owned by Generation could result in increased regulation and reduced public support for nuclear-fueled energy, which could significantly affect Generation’s results of operations, cash flows or financial position. In addition, closure of generating plants owned by others, or extended interruptions of generating plants or failure of transmission lines, could affect transmission systems that could adversely affect the sale and delivery of electricity in markets served by Generation.
Nuclear major incident risk
Although the safety record of nuclear reactors generally has been very good, accidents and other unforeseen problems have occurred both in the United States and abroad. The consequences of a major incident could be severe and include loss of life and property damage. Any resulting liability from a nuclear plant major incident within the United States, owned or operated by Generation or owned by others, could exceed Generation’s resources, including insurance coverage. Uninsured losses and other expenses, to the extent not recovered from insurers or the nuclear industry, could be borne by Generation and could have a material adverse effect on Generation’s results of operations, cash flows or financial position. Additionally, an accident or other significant event at a nuclear plant within the United States or abroad, whether owned Generation or others, could result in increased regulation and reduced public support for nuclear-fueled energy and significantly adversely affect Generation’s results of operations, cash flows or financial position.
Nuclear insurance
As required by the Price-Anderson Act, Generation carries the maximum available amount of nuclear liability insurance, $450 million for each operating site. Claims exceeding that amount are covered through mandatory participation in a financial protection pool. In addition, the U.S. Congress could impose revenue-raising measures on the nuclear industry to pay claims exceeding the $13.4 billion limit for a single incident.
Generation is a member of an industry mutual insurance company, NEIL, which provides property and business interruption insurance for Generation’s nuclear operations. In previous years, NEIL has made distributions to its members but Generation cannot predict the level of future distributions or if they will occur at all. See Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional discussion of nuclear insurance.
Decommissioning obligation and funding
NRC regulations require that licensees of nuclear generating facilities demonstrate reasonable assurance that funds will be available in certain minimum amounts at the end of the life of the facility to decommission the facility. Generation is required to provide to the NRC a biennial report by unit (annually for units that have been retired and units that are within five years of retirement) addressing Generation’s ability to meet the NRC-estimated funding levels including scheduled contributions to and earnings on

the decommissioning trust funds. The NRC funding levels are based upon the assumption that decommissioning will commence after the end of the current licensed life of each unit.
Generation recognizes as a liability the present value of the estimated future costs to decommission its nuclear facilities. The estimated liability is based on assumptions in the approach and timing of decommissioning the nuclear facilities, estimation of decommissioning costs and Federal and state regulatory requirements. No assurance can be given that the costs of such decommissioning will not substantially exceed such liability, as facts, circumstances or our estimates may change, including changes in the approach and timing of decommissioning activities, changes in decommissioning costs, changes in Federal or state regulatory requirements on the decommissioning of such facilities, other changes in our estimates or Generation’s ability to effectively execute on its planned decommissioning activities.
The performance of capital markets could significantly affect the value of the trust funds. Currently, Generation is making contributions to certain trust funds of the former PECO units based on amounts being collected by PECO from its customers and remitted to Generation. While Generation, through PECO, has recourse to collect additional amounts from PECO customers (subject to certain limitations and thresholds), it has no recourse to collect additional amounts from utility customers for any of its other nuclear units if there is a shortfall of funds necessary for decommissioning. If circumstances changed such that Generation would be unable to continue to make contributions to the trust funds of the former PECO units based on amounts collected from PECO customers, or if Generation no longer had recourse to collect additional amounts from PECO customers if there was a shortfall of funds for decommissioning, the adequacy of the trust funds related to the former PECO units could be negatively affected and Exelon’s and Generation’s results of operations, cash flows or financial positions could be significantly affected. See Note 15 — Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional information.
Forecasting trust fund investment earnings and costs to decommission nuclear generating stations requires significant judgment, and actual results could differ significantly from current estimates. Ultimately, if the investments held by Generation’s NDTs are not sufficient to fund the decommissioning of Generation’s nuclear units, Generation could be required to take steps, such as providing financial guarantees through letters of credit or parent company guarantees or making additional contributions to the trusts, which could be significant, to ensure that the trusts are adequately funded and that current and future NRC minimum funding requirements are met. As a result, Generation’s results of operations, cash flows or financial position could be significantly adversely affected. Additionally, if the pledged assets are not sufficient to fund the Zion Station decommissioning activities under the Asset Sale Agreement (ASA), Generation could have to seek remedies available under the ASA to reduce the risk of default by ZionSolutions and its parent. See Note 15 — Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional information.
For nuclear units that are subject to regulatory agreements with either the ICC or the PAPUC, decommissioning-related activities are generally offset within Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income. The offset of decommissioning-related activities within the Consolidated Statements of Operations and Comprehensive Income results in an equal adjustment to the noncurrent payables to affiliates at Generation and an adjustment to the regulatory liabilities at Exelon. Likewise, ComEd and PECO have recorded an equal noncurrent affiliate receivable from Generation and a corresponding regulatory liability.
In the case of the nuclear units subject to the regulatory agreements with the ICC, if the funds held in the NDT funds for any former ComEd unit are expected to not exceed the total decommissioning obligation for that unit, the accounting to offset decommissioning-related activities in the Consolidated Statement of Operations and Comprehensive Income for that unit would be discontinued, the decommissioning-related activities would be recognized in the Consolidated Statements of Operations

and Comprehensive Income and the adverse impact to Exelon’s and Generation’s results of operations, cash flows or financial positions could be material. Additionally, any remaining balances in noncurrent payables to affiliates at Generation and ComEd’s noncurrent affiliate receivable from Generation and corresponding regulatory liability may need to be reversed and could have a material impact on Generation’s Consolidated Statements of Operations and Comprehensive Income.
In the case of the nuclear units subject to the regulatory agreements with the PAPUC, any changes to the PECO regulatory agreements could impact Exelon’s and Generation’s ability to offset decommissioning-related activities within the Consolidated Statement of Operations and Comprehensive Income, and the impact to Exelon’s and Generation’s results of operations, cash flows and financial positions could be material. Additionally, any remaining balances in noncurrent payables to affiliates at Generation and PECO’s noncurrent affiliate receivable from Generation and corresponding regulatory liability may need to be reversed and could have a material impact on Generation’s Consolidated Statement of Operations and Comprehensive Income.
Generation’s financial performance could be negatively affected by risks arising from its ownership and operation of hydroelectric facilities (Exelon and Generation).
FERC has the exclusive authority to license most non-Federal hydropower projects located on navigable waterways, Federal lands or connected to the interstate electric grid. The license for the Muddy Run Pumped Storage Project expires on December 1, 2055. The license for the Conowingo Hydroelectric Project expired on September 1, 2014. FERC issued an annual license, effective as of the expiration of the previous license. If FERC does not issue a license prior to the expiration of the annual license, the annual license renews automatically. Generation cannot predict whether it will receive all the regulatory approvals for the renewed licenses of its hydroelectric facilities. If FERC does not issue new operating licenses for Generation’s hydroelectric facilities or a station cannot be operated through the end of its operating license, Generation’s results of operations could be adversely affected by increased depreciation rates and accelerated future decommissioning costs, since depreciation rates and decommissioning cost estimates currently include assumptions that license renewal will be received. Generation could also lose revenue and incur increased fuel and purchased power expense to meet supply commitments. In addition, conditions could be imposed as part of the license renewal process that could adversely affect operations, could require a substantial increase in capital expenditures or could result in increased operating costs and significantly affect Generation’s results of operations, cash flows or financial position. Similar effects could result from a change in the Federal Power Act or the applicable regulations due to events at hydroelectric facilities owned by others, as well as those owned by Generation.
The Registrants’ businesses are capital intensive, and their assets could require significant expenditures to maintain and are subject to operational failure or be impacted by lack of availability of critical parts, which could result in potential liability (All Registrants).
The Utility Registrants’ businesses are capital intensive and require significant investments by Generation in electric generating facilities and by the Utility Registrants in transmission and distribution infrastructure projects. These operational systems and infrastructure have been in service for many years. Equipment, even if maintained in accordance with good utility practices, is subject to operational failure, including events that are beyond the Utility Registrants’ control, and could require significant expenditures to operate efficiently. Additionally, if critical parts are not available, it may impact the timing of execution of capital projects. The Registrants’ respective results of operations, cash flows orRegistrants' consolidated financial positionsstatements could be adverselynegatively affected if they were unable to effectively manage their capital projects or raise the necessary capital. Furthermore,capital, or if they are deemed liable for operational failure of electric or gas systems, generation facilities or infrastructure could result in potential liability if such failure results in damage to property or injury to individuals.failure. See ITEM 1. BUSINESS7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources for furtheradditional information regarding the Registrants’ potential future capital expenditures.

The Utility Registrants' operating costs, and customers’ and regulators’ opinions of the Utility Registrants are affected by their ability to maintain the availability and reliability of their delivery and operational systems (Exelon and the Utility Registrants).
Failures of the equipment or facilities, including information systems, used in the Utility Registrants' delivery systems could interrupt the electric transmission and electric and natural gas delivery, which could negatively impact related revenues, and increase maintenance and capital expenditures. Equipment or facilities failures can be due to a number of factors, including natural causes such as weather or information systems failure. Specifically, if the implementation of advanced metering infrastructure, smart grid or other technologies in the Utility Registrants' service territory fail to perform as intended or are not successfully integrated with billing and other information systems, the Utility Registrants' results of operations, cash flows or financial positions could be negatively impacted. Furthermore, if any of the financial, accounting, or other data processing systems fail or have other significant shortcomings, the Utility Registrants' financial results could be negatively impacted. If an employee or third party causes the operational systems to fail, either as a result of inadvertent error or by deliberately tampering with or manipulating the operational systems, the Utility Registrants' financial results could also be negatively impacted. In addition, dependence upon automated systems could further increase the risk that operational system flaws or internal and/or external tampering or manipulation of those systems will result in losses that are difficult to detect.
The aforementioned failures or those of other utilities, including prolonged or repeated failures, could affect customer satisfaction and the level of regulatory oversight and the Utility Registrants' maintenance and capital expenditures. Regulated utilities, which are required to provide service to all customers within their service territory, have generally been afforded liability protections against claims by customers relating to failure of service. Under Illinois law, however, ComEd could be required to pay damages to its customers in some circumstances involving extended outages affecting large numbers of its customers, and those damages could be material to ComEd’s results of operations, cash flows or financial position.
The Utility Registrants' respective ability to deliver electricity, their operating costs, and their capital expenditures could be negatively impacted by transmission congestion and failures of neighboring transmission systems (Exelon and the Utility(All Registrants).
Demand for electricity within the Utility Registrants' service areas could stress available transmission capacity requiring alternative routing or curtailment of electricity usage with consequent effects on operating costs, revenues and results of operations.usage. Also, insufficient availability of electric supply to meet customer demand could jeopardize the Utility Registrants' ability to comply with reliability standards and strain customer and regulatory agency relationships. As with all utilities, potential concerns over transmission capacity or generation facility retirements could result in PJM or FERC requiring the Utility Registrants to upgrade or expand their respective transmission systems through additional capital expenditures.
The electricity transmission facilities
31

PJM’s systems and operations are designed to ensure the reliable operation of the transmission grid and prevent the operations of one utility from having an adverse impact on the operations of the other utilities, there can be no assurance thatutilities. However, service interruptions at other utilities will notmay cause interruptions in the Utility Registrants’ service areas. If the Utility Registrants were to suffer such a service interruption, it could have a negative impact on their and Exelon’s results of operations, cash flows and financial positions.

The Registrants are subject to physical security and cybersecurity risks (All Registrants).
The Registrants face physical security and cybersecurity risks as the owner-operators of generation, transmission and distribution facilities and as participants in commodities trading. Threat sources continue to seek to exploit potential vulnerabilities in the electric and natural gas utility industry associated with protection of sensitive and confidential information, grid infrastructure and other energy infrastructures, and such attacks and disruptions, both physical and cyber, are becoming increasingly sophisticated and dynamic. Continued implementation of advanced digital technologies increases the potentially unfavorable impacts of such attacks. A security breach of the physical assets or information systems of the Registrants, their competitors, vendors, business partners and interconnected entities in RTOs and ISOs, or regulators could impact the operation of the generation fleet and/or reliability of the transmission and distribution system or result in the theft or inappropriate release of certain types of information, including critical infrastructure information, sensitive customer, vendor and employee data, trading or other confidential data. The risk of these system-related events and security breaches occurring continues to intensify, and while the Registrants have been, and will likely continue to be, subjected to physical and cyber-attacks, to date none has directly experienced a material breach or disruption to its network or information systems or our service operations. However, as such attacks continue to increase in sophistication and frequency, the Registrants may be unable to prevent all such attacks in the future. If a significant breach were to occur, the reputation of Exelon or another Registrant and its customer supply activitiesRegistrants' performance could be adverselynegatively affected customer confidence in the Registrants or others in the industry could be diminished, or Exelon and its subsidiaries could be subject to legal claims, loss of revenues, increased costs, operations shutdown, etc., any of which could contribute to the loss of customers and have a negative impact on the business and/or results of operations, cash flows or financial positions. Moreover, the amount and scope of insurance maintained against losses resulting from any such events or security breaches may not be sufficient to cover losses or otherwise adequately compensate for any disruptions to business that could result. The Utility Registrants' deployment of smart meters throughout their service territories could increase the risk of damage from an intentional disruption of the system by third parties. In addition, new or updated security regulations or unforeseen threat sources could require changes in current measures taken by the Registrants or their business operations and could adversely affect their results of operations, cash flows or financial positions.
Failureif they fail to attract and retain an appropriately qualified workforce could negatively impact the Registrants’ results of operations, cash flows or financial positions (All Registrants).
Certain events, such as the separation transaction, an employee strike, loss of employees, loss of contract resources due to a major event, and an aging workforce without appropriate replacements, could lead to operating challenges and increased costs for the Registrants. The challenges include lack of resources, loss of knowledge and a lengthy time period associated with skill development. In this case, costs, including costs for contractors to replace employees, productivity costs, and safety costs, could arise. The Registrants are particularly affected due to the specialized knowledge required of the technical and support employees for their generation, transmission and distribution operations. If the Registrantsoperations as well as areas where new technologies are unable to successfully attract and retain an appropriately qualified workforce, their results of operations, cash flows or financial positionspertinent.
The Registrants’ performance could be negatively impacted.affected by poor performance of third-party contractors that perform periodic or ongoing work (All Registrants).
All Registrants rely on third-party contractors to perform operations, maintenance, and construction work. Performance standards typically are included in all contractual obligations, but poor performance may impact the capital execution plan or operations, or have adverse financial or reputational consequences.
The Registrants could make acquisitions or investments in new business initiatives including initiatives mandated by regulators, and new markets, thatwhich may not be successful and acquisitions could notor achieve the intended financial results (All Registrants).
Generation could continue to pursue growth in its existing businesses and markets and further diversification across the competitive energy value chain. This could include investment opportunities in renewables, development of natural gas generation, nuclear advisory or operating services for third

parties, distributed generation, potential expansion of the existing wholesale gas businesses and entry into liquefied natural gas. Such initiatives could involve significant risks and uncertainties, including distraction of management from current operations, inadequate return on capital, and unidentified issues not discovered in the diligence performed prior to launching an initiative or entering a market. As these markets mature, there could be new market entrants or expansion by established competitors that increase competition for customers and resources. Additionally, it is possible that FERC, state public utility commissions or others could impose certain other restrictions on such transactions. All of these factors could result in higher costs or lower revenues than expected, resulting in lower than planned returns on investment.
The Utility Registrants face risks associated with their regulatory-mandated Smart Gridinitiatives, such as smart grids and utility of the future initiatives and other non-regulatory mandated initiatives.broader beneficial electrification. These risks include, but are not limited to, cost recovery, regulatory concerns, cybersecurity, and obsolescence of technology. Due to these risks, no assurance can be given that suchSuch initiatives will be successful and will not have a material adverse effect on the Utility Registrants' results of operations, cash flows or financial positions.
The Registrants may not realize or achieve the anticipated cost savings through the cost management efforts which could impact the Registrants’ results of operations (All Registrants).

The Registrants’ future financial performance and level of profitability is dependent, in part, on various cost reduction initiatives. The Registrants may encounter challenges in executing these cost reduction initiatives and not achieve the intended cost savings.be successful.
Risks Related to the PHI MergerSeparation (Exelon)
The mergerseparation may not achieve itssome or all of the benefits anticipated by Exelon and, following the separation, Exelon's common stock price may underperform relative to Exelon's expectations.
By separating the Utility Registrants and Constellation, Exelon created two publicly traded companies with the resources necessary to best serve customers and sustain long-term investment and operating excellence. The separate companies are expected to create value by having the strategic flexibility to focus on their unique customer, market and community priorities. However, the separation may not provide such results on the scope or scale that Exelon anticipates, and Exelon could be unable to integrate the operations of PHI in the manner expected (Exelon and PHI).
Exelon and PHI entered into the merger agreement with the expectation that the merger will result in various benefits, including, among other things, cost savings and operating efficiencies. Achievingmay not realize the anticipated benefits of the merger is subject to a number of uncertainties, including whether the businesses of Exelon and PHI can be integrated in an efficient, effective and timely manner.
It is possible that the integration process could take longer than anticipated and could result in the loss of valuable employees, the disruption of Exelon’s businesses, processes and systems or inconsistencies in standards, controls, procedures, practices and policies, any of which could adversely affect the combined company’s ability to achieve the anticipated benefits of the merger as and when expected. Exelon could have difficulty addressing possible differences in corporate cultures and management philosophies.separation. Failure to achieve these anticipated benefits could result in increased costs and could adversely affect Exelon’s and PHI's future business, prospects, results of operations, cash flows or financial conditions.
The merger may not be accretive to earnings and could cause dilution to Exelon’s earnings per share, which could negatively affect the market price of Exelon’s common stock (Exelon).
The timing and amount of accretion expected could be significantly adversely affected by a number of uncertainties, including market conditions, risks related to Exelon’s businesses and whether the business of PHI is integrated in an efficient and effective manner. Exelon also could encounter additional transaction and integration-related costs, could fail to realize all of the benefits anticipated in the merger or be subject to other factors that affect preliminary estimates. Any of these factors could cause a decrease

in Exelon’s adjusted earnings per share or decrease or delay the expected accretive effect of the merger and contribute to a decrease in the price of Exelon’s common stock.
ITEM 1B.UNRESOLVED STAFF COMMENTS
All Registrants
None.

ITEM 2.PROPERTIES
Generation
The following table describes Generation’s interests in net electric generating capacity by station at December 31, 2017:
Station(a)
RegionLocation
No. of
Units
 
Percent
Owned(b)
 
Primary
Fuel Type
 
Primary
Dispatch
Type(c)
 
Net Generation
Capacity (MW)(d)
 
BraidwoodMidwestBraidwood, IL2
   Uranium Base-load 2,381
 
ByronMidwestByron, IL2
   Uranium Base-load 2,347
 
LaSalleMidwestSeneca, IL2
   Uranium Base-load 2,320
 
DresdenMidwestMorris, IL2
   Uranium Base-load 1,845
 
Quad CitiesMidwestCordova, IL2
 75
 Uranium Base-load 1,403
(f) 
ClintonMidwestClinton, IL1
   Uranium Base-load 1,069
 
Michigan Wind 2MidwestSanilac Co., MI50
 51
 Wind Base-load 46
(f)(h) 
BeebeMidwestGratiot Co., MI34
 51
 Wind Base-load 42
(f)(h) 
Michigan Wind 1MidwestHuron Co., MI46
 51
 Wind Base-load 35
(f)(h) 
Harvest 2MidwestHuron Co., MI33
 51
 Wind Base-load 30
(f)(h) 
HarvestMidwestHuron Co., MI32
 51
 Wind Base-load 27
(f)(h) 
Beebe 1BMidwestGratiot Co., MI21
 51
 Wind Base-load 26
(f)(h) 
EwingtonMidwestJackson Co., MN10
 99
 Wind Base-load 20
(f) 
MarshallMidwestLyon Co., MN9
 99
 Wind Base-load 19
(f) 
City SolarMidwestChicago, IL1
   Solar Base-load 9
 
AgriWindMidwestBureau Co., IL4
 99
 Wind Base-load 8
(f) 
CiscoMidwestJackson Co., MN4
 99
 Wind Base-load 8
(f) 
Solar OhioMidwestToledo, OH2
   Solar Base-load 4
 
Blue BreezesMidwestFaribault Co., MN2
   Wind Base-load 3
 
CP WindfarmMidwestFaribault Co., MN2
 51
 Wind Base-load 2
(f)(h) 
Southeast ChicagoMidwestChicago, IL8
   Gas Peaking 296
 
Clinton Battery StorageMidwestBlanchester, OH1
   Energy Storage Peaking 10
 
Total Midwest          11,950
 
             
LimerickMid-AtlanticSanatoga, PA2
   Uranium Base-load 2,317
 
Peach BottomMid-AtlanticDelta, PA2
 50
 Uranium Base-load 1,303
(f) 
SalemMid-Atlantic
Lower Alloways 
Creek Township, NJ
2
 42.59
 Uranium Base-load 1,007
(f) 
Calvert CliffsMid-AtlanticLusby, MD2
 50.01
 Uranium Base-load 888
(f)(g) 
Three Mile IslandMid-AtlanticMiddletown, PA1
   Uranium Base-load 837
(k) 
Oyster CreekMid-AtlanticForked River, NJ1
   Uranium Base-load 625
(e) 
ConowingoMid-AtlanticDarlington, MD11
   Hydroelectric Base-load 572
 
CriterionMid-AtlanticOakland, MD28
 51
 Wind Base-load 36
(f)(h) 
Fair WindMid-AtlanticGarrett County, MD12
   Wind Base-load 30
 
Solar Maryland MCMid-AtlanticVarious, MD17
   Solar Base-load 29
 
FourmileMid-AtlanticGarrett County, MD16
 51
 Wind Base-load 20
(f)(h) 
Solar New Jersey 1Mid-AtlanticVarious, NJ5
   Solar Base-load 18
 
Solar New Jersey 2Mid-AtlanticVarious, NJ2
   Solar Base-load 11
 

Station(a)
RegionLocation
No. of
Units
 
Percent
Owned(b)
 
Primary
Fuel Type
 
Primary
Dispatch
Type(c)
 
Net Generation
Capacity (MW)(d)
 
Solar HorizonsMid-AtlanticEmmitsburg, MD1
 51
 Solar Base-load 8
(f)(h) 
Solar MarylandMid-AtlanticVarious, MD11
   Solar Base-load 8
 
Solar Maryland 2Mid-AtlanticVarious, MD3
   Solar Base-load 8
 
Solar FederalMid-AtlanticTrenton, NJ1
   Solar Base-load 5
 
Solar New Jersey 3Mid-AtlanticMiddle Township, NJ5
 51
 Solar Base-load 1
(f)(h) 
Solar DCMid-AtlanticDistrict of Columbia1
   Solar Base-load 1
 
Muddy RunMid-AtlanticDrumore, PA8
   Hydroelectric Intermediate 1,070
 
Eddystone 3, 4Mid-AtlanticEddystone, PA2
   Oil/Gas Intermediate 760
 
PerrymanMid-AtlanticAberdeen, MD5
   Oil/Gas Peaking 404
 
CroydonMid-AtlanticWest Bristol, PA8
   Oil Peaking 391
 
Handsome LakeMid-AtlanticKennerdell, PA5
   Gas Peaking 268
 
Notch CliffMid-AtlanticBaltimore, MD8
   Gas Peaking 117
 
WestportMid-AtlanticBaltimore, MD1
   Gas Peaking 116
 
RichmondMid-AtlanticPhiladelphia, PA2
   Oil Peaking 98
 
Gould StreetMid-AtlanticBaltimore, MD1
   Gas Peaking 97
 
Philadelphia RoadMid-AtlanticBaltimore, MD4
   Oil Peaking 61
 
EddystoneMid-AtlanticEddystone, PA4
   Oil Peaking 60
 
Fairless HillsMid-AtlanticFairless Hills, PA2
   Landfill Gas Peaking 60
 
DelawareMid-AtlanticPhiladelphia, PA4
   Oil Peaking 56
 
SouthwarkMid-AtlanticPhiladelphia, PA4
   Oil Peaking 52
 
FallsMid-AtlanticMorrisville, PA3
   Oil Peaking 51
 
MoserMid-AtlanticLower PottsgroveTwp., PA3
   Oil Peaking 51
 
RiversideMid-AtlanticBaltimore, MD2
   Oil/Gas Peaking 39
 
ChesterMid-AtlanticChester, PA3
   Oil Peaking 39
 
SchuylkillMid-AtlanticPhiladelphia, PA2
   Oil Peaking 30
 
SalemMid-Atlantic
Lower Alloways 
Creek Township, NJ
1
 42.59
 Oil Peaking 16
(f) 
PennsburyMid-AtlanticMorrisville, PA2
   Landfill Gas Peaking 6
 
Total Mid-Atlantic          11,566
 
             
WhitetailERCOTWebb County, TX57
 51
 Wind Base-load 46
(f)(h) 
SenderoERCOTJim Hogg and Zapata County, TX39
 51
 Wind Base-load 40
(f)(h) 
Colorado Bend IIERCOTWharton, TX3
   Gas Intermediate 1,088
 
Wolf Hollow IIERCOTGranbury, TX3
   Gas Intermediate 1,064
 
Wolf Hollow 1, 2, 3ERCOTGranbury, TX3
   Gas Intermediate 705
(l) 
Mountain Creek 8ERCOTDallas, TX1
   Gas Intermediate 568
(l) 
Colorado BendERCOTWharton, TX6
   Gas Intermediate 468
(l) 
Handley 3ERCOTFort Worth, TX1
   Gas Intermediate 395
(l) 
Handley 4, 5ERCOTFort Worth, TX2
   Gas Peaking 870
(l) 
Mountain Creek 6, 7ERCOTDallas, TX2
   Gas Peaking 240
(l) 
LaPorteERCOTLaporte, TX4
   Gas Peaking 152
(l) 
Total ERCOT          5,636
 
             
Solar MassachusettsNew EnglandVarious, MA10
   Solar Base-load 7
 
Holyoke SolarNew EnglandVarious, MA2
   Solar Base-load 5
 

Station(a)
RegionLocation
No. of
Units
 
Percent
Owned(b)
 
Primary
Fuel Type
 
Primary
Dispatch
Type(c)
 
Net Generation
Capacity (MW)(d)
 
Solar Net MeteringNew EnglandUxbridge, MA1
   Solar Base-load 2
 
Solar ConnecticutNew EnglandVarious, CT1
   Solar Base-load 1
 
Mystic 8, 9New EnglandCharlestown, MA6
   Gas Intermediate 1,417
 
Mystic 7New EnglandCharlestown, MA1
   Oil/Gas Intermediate 575
 
WymanNew EnglandYarmouth, ME1
 5.9
 Oil Intermediate 36
(f) 
West MedwayNew EnglandWest Medway, MA3
   Oil Peaking 124
 
FraminghamNew EnglandFramingham, MA3
   Oil Peaking 30
 
Mystic JetNew EnglandCharlestown, MA1
   Oil Peaking 9
 
Total New England          2,206
 
             
Nine Mile PointNew YorkScriba, NY2
 50.01
 Uranium Base-load 838
(f)(g) 
FitzPatrickNew YorkScriba, NY1
   Uranium Base-load 842
 
GinnaNew YorkOntario, NY1
 50.01
 Uranium Base-load 288
(f)(g) 
Solar New YorkNew YorkBethlehem, NY1
   Solar Base-load 3
 
Total New York          1,971
 
             
AVSROtherLancaster, CA1
   Solar Base-load 242
 
BluestemOtherBeaver County, OK60
 51
 Wind Base-load 101
(f)(h)(i) 
Exelon Wind 4OtherGruver, TX38
   Wind Base-load 80
 
Shooting StarOtherKiowa County, KS65
 51
 Wind Base-load 53
(f)(h) 
Albany Green EnergyOtherAlbany, GA1
 99
 Biomass Base-load 46
(j) 
Solar ArizonaOtherVarious, AZ127
   Solar Base-load 46
 
Bluegrass RidgeOtherKing City, MO27
 51
 Wind Base-load 29
(f)(h) 
California PV Energy 2OtherVarious, CA89
   Solar Base-load 27
 
ConceptionOtherBarnard, MO24
 51
 Wind Base-load 26
(f)(h) 
Cow BranchOtherRock Port, MO24
 51
 Wind Base-load 26
(f)(h) 
Solar Arizona 2OtherVarious, AZ25
   Solar Base-load 23
 
California PV EnergyOtherVarious, CA53
   Solar Base-load 21
 
Mountain HomeOtherGlenns Ferry, ID20
 51
 Wind Base-load 21
(f)(h) 
High MesaOtherElmore Co., ID19
 51
 Wind Base-load 20
(f)(h) 
Echo 1OtherEcho, OR21
 50.49
 Wind Base-load 17
(f)(h) 
Sacramento PV EnergyOtherSacramento, CA4
 51
 Solar Base-load 15
(f)(h) 
CassiaOtherBuhl, ID14
 51
 Wind Base-load 15
(f)(h) 
WildcatOtherLovington, NM13
 51
 Wind Base-load 14
(f)(h) 
Echo 2OtherEcho, OR10
 51
 Wind Base-load 10
(f)(h) 
Exelon Wind 5OtherTexhoma, TX8
   Wind Base-load 10
 
Exelon Wind 6OtherTexhoma, TX8
   Wind Base-load 10
 
Exelon Wind 7OtherSunray, TX8
   Wind Base-load 10
 
Exelon Wind 8OtherSunray, TX8
   Wind Base-load 10
 
Exelon Wind 9OtherSunray, TX8
   Wind Base-load 10
 
Exelon Wind 10OtherDumas, TX8
   Wind Base-load 10
 

Station(a)
RegionLocation
No. of
Units
 
Percent
Owned(b)
 
Primary
Fuel Type
 
Primary
Dispatch
Type(c)
 
Net Generation
Capacity (MW)(d)
 
Exelon Wind 11OtherDumas, TX8
   Wind Base-load 10
 
High PlainsOtherPanhandle, TX8
 99.5
 Wind Base-load 10
(f) 
Tuana SpringsOtherHagerman, ID8
 51
 Wind Base-load 9
(f)(h) 
Solar GeorgiaOtherVarious, GA10
   Solar Base-load 8
 
Solar Georgia 2OtherVarious, GA6
   Solar Base-load 8
 
GreensburgOtherGreensburg, KS10
 51
 Wind Base-load 7
(f)(h) 
Outback SolarOtherChristmas Valley, OR1
   Solar Base-load 6
 
Echo 3OtherEcho, OR6
 50.49
 Wind Base-load 5
(f)(h) 
Three Mile CanyonOtherBoardman, OR6
 51
 Wind Base-load 5
(f)(h) 
Loess HillsOtherRock Port, MO4
   Wind Base-load 5
 
Mohave Sunrise SolarOtherFort Mohave, AZ1
   Solar Base-load 5
 
Denver Airport SolarOtherDenver, CO1
 51
 Solar Base-load 2
(f)(h) 
HillabeeOtherAlexander City, AL3
   Gas Intermediate 753
 
Grande PrairieOtherAlberta, Canada1
   Gas Peaking 105
 
SEGS 4, 5, 6OtherBoron, CA3
 4.2-12.2
 Solar Peaking 9
(f) 
Total Other          1,839
 
Total          35,168
 
 __________
(a)All nuclear stations are boiling water reactors except Braidwood, Byron, Calvert Cliffs, Ginna, Salem and Three Mile Island, which are pressurized water reactors.
(b)100%, unless otherwise indicated.
(c)Base-load units are plants that normally operate to take all or part of the minimum continuous load of a system and, consequently, produce electricity at an essentially constant rate. Intermediate units are plants that normally operate to take load of a system during the daytime higher load hours and, consequently, produce electricity by cycling on and off daily. Peaking units consist of lower-efficiency, quick response steam units, gas turbines and diesels normally used during the maximum load periods.
(d)For nuclear stations, capacity reflects the annual mean rating. Fossil stations reflect a summer rating. Wind and solar facilities reflect name plate capacity.
(e)Generation had previously agreed to permanently cease generation operations at Oyster Creek by the end of 2019. On February 2, 2018, Exelon announced that Generation will permanently cease generation operations at Oyster Creek at the end of its current operating cycle in October 2018. See Note 28 — Subsequent Events of the Combined Notes to Consolidated Financial Statements for additional information regarding the early retirement of Oyster Creek.
(f)Net generation capacity is stated at proportionate ownership share.
(g)Reflects Generation’s 50.01% interest in CENG, a joint venture with EDF. For Nine Mile Point, the co-owner owns 18% of Unit 2. Thus, Exelon’s ownership is 50.01% of 82% of Nine Mile Point Unit 2.
(h)Reflects the sale of 49% of ExGen Renewables Partners to a third party on July 6, 2017. See Note 2 — Variable Interest Entities of the Combined Notes to Consolidated Financial Statements for additional information.
(i)ExGen Renewables Partners owns 100% of the Class A membership interests and a tax equity investor owns 100% of the Class B membership interests of the entity that owns the Bluestem generating assets.
(j)Generation directly owns a 50% interest in the Albany Green Energy station and an additional 49% through the consolidation of a Variable Interest Entity.
(k)Generation has announced it will permanently cease generation operations at TMI on or about September 30, 2019. See Note 8 — Early Nuclear Plant Retirements of the Combined Notes to Consolidated Financial Statements for additional information regarding the early retirement of TMI.
(l)As a result of the EGTP bankruptcy and deconsolidation on November 7, 2017, Generation deconsolidated EGTP's assets and liabilities from Generation's consolidated financial statements. As of December 31, 2017, these assets were still under Generation's ownership and included in the table. See Note 4 — Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for additional information.
The net generation capability available for operation at any time may be less due to regulatory restrictions, transmission congestion, fuel restrictions, efficiency of cooling facilities, level of water supplies or generating units being temporarily out of service for inspection, maintenance, refueling, repairs or modifications required by regulatory authorities.
Generation maintains property insurance against loss or damage to its principal plants and properties by fire or other perils, subject to certain exceptions. For additional information regarding

nuclear insurance of generating facilities, see ITEM 1. BUSINESS — Exelon Generation Company, LLC. For its insured losses, Generation is self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such lossesdo so could have a material adverse effect on Generation’s consolidatedExelon's financial condition orstatements and its common stock price.
In connection with the separation into two public companies, Exelon and Constellation will indemnify each other for certain liabilities. If Exelon is required to pay under these indemnities to Constellation, Exelon's financial results could be negatively impacted. The Constellation indemnities may not be sufficient to hold Exelon harmless from the full amount of liabilities for which Constellation will be allocated responsibility, and Constellation may not be able to satisfy its indemnification obligations in the future.
Pursuant to the separation agreement and certain other agreements between Exelon and Constellation, each party will agree to indemnify the other for certain liabilities, in each case for uncapped amounts. Indemnities that Exelon may be required to provide Constellation are not subject to any cap, may be significant and could negatively impact its business. Third parties could also seek to hold Exelon responsible for any of the liabilities that Constellation has agreed to retain. Any amounts Exelon is required to pay pursuant to these indemnification obligations and other liabilities could require Exelon to divert cash that would otherwise have been used in furtherance of its operating business. Further, the indemnities from Constellation for Exelon's benefit may not be
32

sufficient to protect Exelon against the full amount of such liabilities, and Constellation may not be able to fully satisfy its indemnification obligations.
Moreover, even if Exelon ultimately succeeds in recovering from Constellation any amounts for which Exelon is held liable, Exelon may be temporarily required to bear these losses. Each of these risks could negatively affect Exelon's business, results of operations.operations and financial condition.
ComEd
ITEM 1B.UNRESOLVED STAFF COMMENTS
ComEd’sAll Registrants
None.
33

ITEM 2.PROPERTIES
The Utility Registrants
The Utility Registrants' electric substations and a portion of itstheir transmission rights of way are located on property that ComEd owns.they own. A significant portion of itstheir electric transmission and distribution facilities isare located above or underneath highways, streets, other public places, or property that others own. ComEd believesThe Utility Registrants believe that it hasthey have satisfactory rights to use those places or property in the form of permits, grants, easements, licenses, and franchise rights; however, it hasthey have not necessarily undertaken to examine the underlying title to the land upon which the rights rest.
Transmission and Distribution
ComEd’s high voltage electric transmission lines owned and in service at December 31, 2017 were as follows:
Voltage (Volts)Circuit Miles
765,00090
345,0002,718
138,0002,209
ComEd’s electric distribution system includes 35,383 circuit miles of overhead lines and 31,798 circuit miles of underground lines.
First Mortgage and Insurance
The principal properties of ComEd are subject to the lien of ComEd’s Mortgage dated July 1, 1923, as amended and supplemented, under which ComEd’s First Mortgage Bonds are issued.
ComEd maintains property insurance against loss or damage to its properties by fire or other perils, subject to certain exceptions. For its insured losses, ComEd is self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect on the consolidated financial condition or results of operations of ComEd.
PECO
PECO’s electric substations and a significant portion of its transmission lines are located on property that PECO owns. A significant portion of its electric transmission and distribution facilities is located above or underneath highways, streets, other public places or property that others own. PECO believes that it has satisfactory rights to use those places or property in the form of permits, grants, easements and licenses; however, it has not necessarily undertaken to examine the underlying title to the land upon which the rights rest.

Transmission and Distribution
PECO’s high voltage electric transmission lines owned and in service at December 31, 2017 were as follows:
Voltage (Volts)Circuit Miles
500,000188(a)
230,000548
138,000135
69,000181
__________
(a)In addition, PECO has a 22.00% ownership interest in 127 miles of 500 kV lines located in Pennsylvania and a 42.55% ownership interest in 131 miles of 500 kV lines located in Delaware and New Jersey.
PECO’s electric distribution system includes 12,957 circuit miles of overhead lines and 9,322 circuit miles of underground lines.
Gas
The following table sets forth PECO’s natural gas pipeline miles at December 31, 2017:
Pipeline Miles
Transmission30
Distribution6,889
Service piping6,328
Total13,247
PECO has an LNG facility located in West Conshohocken, Pennsylvania that has a storage capacity of 1,200 mmcf and a send-out capacity of 157 mmcf/day and a propane-air plant located in Chester, Pennsylvania, with a tank storage capacity of 105 mmcf and a peaking capability of 25 mmcf/day. In addition, PECO owns 31 natural gas city gate stations and direct pipeline customer delivery points at various locations throughout its gas service territory.
First Mortgage and Insurance
The principal properties of PECO are subject to the lien of PECO’s Mortgage dated May 1, 1923, as amended and supplemented, under which PECO’s first and refunding mortgage bonds are issued.
PECO maintains property insurance against loss or damage to its properties by fire or other perils, subject to certain exceptions. For its insured losses, PECO is self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect on the consolidated financial condition or results of operations of PECO.
BGE
BGE’s electric substations and a significant portion of its transmission lines are located on property that BGE owns. A significant portion of its electric transmission and distribution facilities is located above or underneath highways, streets, other public places or property that others own. BGE believes that it has satisfactory rights to use those places or property in the form of permits, grants, easements and

licenses; however, it has not necessarily undertaken to examine the underlying title to the land upon which the rights rest.
Transmission and Distribution
BGE’sThe Utility Registrants’ high voltage electric transmission lines owned and in service at December 31, 20172022 were as follows:
VoltageCircuit Miles
(Volts)ComEdPECOBGEPepcoDPLACE
765,00090
500,000(a)
18821610915
345,0002,678
230,000550352770472272
138,0002,2571355561586214
115,00070025
69,000177567662
Voltage (Volts)Circuit Miles
500,000218
230,000352
138,00055
115,000713
___________
BGE’s(a)    In addition, PECO, DPL, and ACE have an ownership interest located in Delaware and New Jersey. See Note 8 — Jointly Owned Electric Utility Plant of the Combined Notes to the Consolidated Financial Statements for additional information.
The Utility Registrants' electric distribution system includes 9,169the following number of circuit miles of overhead lines and 17,209 circuit miles of underground lines.lines:
Circuit MilesComEdPECOBGEPepcoDPLACE
Overhead35,38712,9659,1554,1306,0077,345
Underground32,6849,59017,9277,2076,5133,007
Gas
The following table sets forthpresents PECO’s, BGE’s, and DPL’s natural gas pipeline miles at December 31, 2017:2022:
PECOBGEDPL
Transmission(a)
91528
Distribution6,9907,5272,198
Service piping6,4796,7611,486
Total13,47814,4403,692
Pipeline Miles
Transmission161
Distribution7,306
Service piping6,263
Total13,730
___________
BGE(a)    DPL has an LNG facilitya 10% undivided interest in approximately 8 miles of natural gas transmission mains located in Baltimore, Maryland that has a storage capacityDelaware, which are used by DPL for its natural gas operations and by 90% owner for distribution of 1,056 mmcfnatural gas to its electric generating facilities.

34

The following table presents PECO’s, BGE’s, and a send-out capacity of 332 mmcf/dayDPL’s natural gas facilities:
RegistrantFacilityLocationStorage Capacity
(mmcf)
Send-out or Peaking Capacity
(mmcf/day)
PECOLNG FacilityWest Conshohocken, PA1,200160
PECOPropane Air PlantChester, PA10525
BGELNG FacilityBaltimore, MD1,056332
BGEPropane Air PlantBaltimore, MD55085
DPLLNG FacilityWilmington, DE25025
PECO, BGE, and a propane-air plant located in Baltimore, Maryland, with a storage capacity of 550 mmcfDPL also own 30, 30, and a send-out capacity of 85 mmcf/day. In addition, BGE owns 1210 natural gas city gate stations and20 direct pipeline customer delivery points at various locations throughout itstheir gas service territory.territory, respectively.
PropertyFirst Mortgage and Insurance
BGE owns itsThe principal headquarters building located in downtown Baltimore. BGE maintainsproperties of ComEd, PECO, PEPCO, DPL, and ACE are subject to the lien of their respective Mortgages under which their respective First Mortgage Bonds are issued. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.

The Utility Registrants maintain property insurance against loss or damage to itstheir properties by fire or other perils, subject to certain exceptions. For itstheir insured losses, BGE isthe Utility Registrants are self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect onin the consolidated financial condition or results of operations of BGE.the Utility Registrants.
Pepco
Pepco’s electric substations and a significant portion of its transmission lines are located on property that Pepco owns. A significant portion of its electric transmission and distribution facilities is located above or underneath highways, streets, other public places or property that others own. Pepco believes that it has satisfactory rights to use those places or property in the form of permits, grants, easements and licenses; however, it has not necessarily undertaken to examine the underlying title to the land upon which the rights rest.

Transmission and Distribution
Pepco’s high voltage electric transmission lines owned and in service at December 31, 2017 were as follows:
Voltage (Volts)Circuit Miles
500,000142
230,000767
138,00061
115,00038
Pepco’s electric distribution system includes approximately 4,105 circuit miles of overhead lines and 6,844 circuit miles of underground lines. Pepco also operates a distribution system control center in Bethesda, Maryland. The computer equipment and systems contained in Pepco’s control center are financed through a sale and leaseback transaction.
First Mortgage and Insurance
The principal properties of Pepco are subject to the lien of Pepco’s mortgage dated July 1, 1935, as amended and supplemented, under which Pepco First Mortgage Bonds are issued.
Pepco maintains property insurance against loss or damage to its properties by fire or other perils, subject to certain exceptions. For its insured losses, Pepco is self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect on the consolidated financial condition or results of operations of Pepco.
DPL
DPL’s electric substations and a significant portion of its transmission lines are located on property that DPL owns. A significant portion of its electric transmission and distribution facilities is located above or underneath highways, streets, other public places or property that others own. DPL believes that it has satisfactory rights to use those places or property in the form of permits, grants, easements and licenses; however, it has not necessarily undertaken to examine the underlying title to the land upon which the rights rest.
Transmission and Distribution
DPL’s high voltage electric transmission lines owned and in service at December 31, 2017 were as follows:
Voltage (Volts)Circuit Miles
500,00016
230,000470
138,000557
69,000576
DPL’s electric distribution system includes approximately 6,028 circuit miles of overhead lines and 6,103 circuit miles of underground lines. DPL also owns and operates a distribution system control center in New Castle, Delaware.

Gas
The following table sets forth DPL’s natural gas pipeline miles at December 31, 2017:
Pipeline Miles
Transmission (a)
8
Distribution2,061
Service piping1,393
Total3,462
___________
(a)DPL has a 10% undivided interest in approximately 8 miles of natural gas transmission mains located in Delaware which are used by DPL for its natural gas operations and by 90% owner for distribution of natural gas to its electric generating facilities.
DPL owns a liquefied natural gas facility located in Wilmington, Delaware, with a storage capacity of approximately 3,045 mmcf and an emergency sendout capability of 36,000 Mcf per day. DPL owns 4 natural gas city gate stations at various locations in New Castle County, Delaware. These stations have a total primary delivery point contractual entitlement of 158,485 Mcf per day.
First Mortgage and Insurance
The principal properties of DPL are subject to the lien of DPL’s mortgage dated October 1, 1947, as amended and supplemented, under which DPL First Mortgage Bonds are issued.
DPL maintains property insurance against loss or damage to its properties by fire or other perils, subject to certain exceptions. For its insured losses, DPL is self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect on the consolidated financial condition or results of operations of DPL.
ACE
ACE’s electric substations and a significant portion of its transmission lines are located on property that ACE owns. A significant portion of its electric transmission and distribution facilities is located above or underneath highways, streets, other public places or property that others own. ACE believes that it has satisfactory rights to use those places or property in the form of permits, grants, easements and licenses; however, it has not necessarily undertaken to examine the underlying title to the land upon which the rights rest.
Transmission and Distribution
ACE’s high voltage electric transmission lines owned and in service at December 31, 2017 were as follows:
Voltage (Volts)Circuit Miles
500,000281
230,000237
138,000268
69,000652

ACE’s electric distribution system includes approximately 7,378 circuit miles of overhead lines and 2,900 circuit miles of underground lines. ACE also owns and operates a distribution system control center in Mays Landing, New Jersey.
First Mortgage and Insurance
The principal properties of ACE are subject to the lien of ACE’s mortgage dated January 15, 1937, as amended and supplemented, under which ACE First Mortgage Bonds are issued.
ACE maintains property insurance against loss or damage to its properties by fire or other perils, subject to certain exceptions. For its insured losses, ACE is self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect on the consolidated financial condition or results of operations of ACE.
Exelon
Security Measures
The Registrants have initiated and work to maintain security measures. On a continuing basis, the Registrants evaluate enhanced security measures at certain critical locations, enhanced response and recovery plans, long-term design changes, and redundancy measures. Additionally, the energy industry has strategic relationships with governmental authorities to ensure that emergency plans are in place and critical infrastructure vulnerabilities are addressed in order to maintain the reliability of the country’s energy systems.

ITEM 3.LEGAL PROCEEDINGS
All Registrants
The Registrants are parties to various lawsuits and regulatory proceedings in the ordinary course of their respective businesses. For information regarding material lawsuits and proceedings, see Note 3 — Regulatory Matters and Note 2318 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Such descriptions are incorporated herein by these references.

ITEM 4.MINE SAFETY DISCLOSURES
All Registrants
Not Applicable to the Registrants.

35

PART II
(Dollars in millions, except per share data, unless otherwise noted)
ITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Exelon
Exelon’s common stock is listed on the New York Stock Exchange.Nasdaq (trading symbol: EXC). As of January 31, 2018,2023, there were 965,029,399994,126,931 shares of common stock outstanding and approximately 104,90980,780 record holders of common stock.
The following table presents the New York Stock Exchange—Composite Common Stock Prices and dividends by quarter on a per share basis:
 2017 2016
 
Fourth
Quarter
 
Third
Quarter
 
Second
Quarter
 
First
Quarter
 
Fourth
Quarter
 
Third
Quarter
 
Second
Quarter
 
First
Quarter
High price$42.67
 $38.78
 $37.44
 $37.19
 $36.36
 $37.70
 $36.37
 $35.95
Low price37.55
 35.37
 33.30
 34.47
 29.82
 32.86
 33.18
 26.26
Close39.41
 37.67
 36.07
 35.98
 35.49
 33.29
 36.36
 35.86
Dividends0.328
 0.328
 0.328
 0.328
 0.318
 0.318
 0.318
 0.310
Stock Performance Graph
The performance graph below illustrates a five-year comparison of cumulative total returns based on an initial investment of $100 in Exelon common stock, as compared with the S&P 500 Stock Index and the S&P Utility Index, for the period 20132018 through 2017.2022. Cumulative total returns account for the separation of Constellation, as spin-off dividend is assumed to be reinvested as received.
This performance chart assumes:
$100 invested on December 31, 20122017 in Exelon common stock, in the S&P 500 Stock Index, and in the S&P Utility Index; and
All dividends are reinvested.

exc-20221231_g1.jpg
36

Value of Investment at December 31,
 201220132014201520162017
Exelon Corporation$100$65.11$88.14$66.01$84.36$132.16
S&P 500$100$144.74$161.22$160.05$175.31$182.82
S&P Utilities$100$107.43$133.52$122.32$137.24$147.82
Generation
As of January 31, 2018, Exelon indirectly held the entire membership interest in Generation.
Value of Investment at December 31,
201720182019202020212022
Exelon Corporation$100.00$118.33$123.39$118.59$167.70$181.67
S&P 500$100.00$95.62$125.72$148.85$191.58$156.88
S&P Utilities$100.00$104.11$131.54$132.18$155.53$157.97
ComEd
As of January 31, 2018,2023, there were 127,021,256127,021,394 outstanding shares of common stock, $12.50 par value, of ComEd, of which 127,002,904 shares were indirectly held by Exelon. AtAs of January 31, 2018,2023, in addition to Exelon, there were 294283 record holders of ComEd common stock. There is no established market for shares of the common stock of ComEd.

PECO
As of January 31, 2018,2023, there were 170,478,507 outstanding shares of common stock, without par value, of PECO, all of which were indirectly held by Exelon.
BGE
As of January 31, 2018,2023, there were 1,000 outstanding shares of common stock, without par value, of BGE, all of which were indirectly held by Exelon.
PHI
As of January 31, 2018,2023, Exelon indirectly held the entire membership interest in PHI.
Pepco
As of January 31, 2018,2023, there were 100 outstanding shares of common stock, $0.01 par value, of Pepco, all of which were indirectly held by Exelon.
DPL
As of January 31, 2018,2023, there were 1,000 outstanding shares of common stock, $2.25 par value, of DPL, all of which were indirectly held by Exelon.
ACE
As of January 31, 2018,2023, there were 8,546,017 outstanding shares of common stock, $3.00 par value, of ACE, all of which were indirectly held by Exelon.
All Registrants
Dividends
Under applicable Federal law, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE can pay dividends only from retained, undistributed, or current earnings. A significant loss recorded at Generation, ComEd, PECO, BGE, PHI, Pepco, DPL, or ACE may limit the dividends that these companies can distribute to Exelon.
The Federal Power Act declares it to be unlawful for any officer or director of any public utility “to participate in the making or paying of any dividends of such public utility from any funds properly included in capital account.” What constitutes “funds properly included in capital account” is undefined in the Federal Power Act or the related regulations; however, FERC has consistently interpreted the provision to allow dividends to be paid as long as (1) the source of the dividends is clearly disclosed, (2) the dividend is not excessive and (3) there is no self-dealing on the part of corporate officials. While these restrictions may limit the absolute amount of dividends that a particular subsidiary may pay, Exelon does not believe these limitations are materially limiting because, under these limitations, the subsidiaries are allowed to pay dividends sufficient to meet Exelon’s actual cash needs.
Under Illinois law, ComEd may not pay any dividend on its stock unless, among other things, “[its] earnings and earned surplus are sufficient to declare and pay same after provision is made for reasonable and proper reserves,” or unless it has specific authorization from the ICC. ComEd has also agreed, in connection with a financing arranged through ComEd Financing III, that ComEd will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment

periods on the subordinated debt securities issued to ComEd Financing III; (2) it defaults on its guarantee of the payment of distributions on the preferred trust securities of ComEd Financing III; or (3) an event of default occurs under the Indenture under which the subordinated debt securities are issued. No such event has occurred.
37

PECO has agreed, in connection with financings arranged through PEC L.P. and PECO Trust IV, that PECO will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debentures which were issued to PEC L.P. or PECO Trust IV; (2) it defaults on its guarantee of the payment of distributions on the Series D Preferred Securities of PEC L.P. or the preferred trust securities of PECO Trust IV; or (3) an event of default occurs under the Indenture under which the subordinated debentures are issued. No such event has occurred.
BGE is subject to certain dividend restrictions established by the MDPSC. First, in connection with the Constellation merger,MDPSC that prohibit BGE was prohibited from paying a dividend on its common shares through the end of 2014. Second, BGE is prohibited from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. Finally, BGE must notify the MDPSC that it intends to declare a dividend on its common shares at least 30 days beforeNo such a dividend is paid and notify the MDPSC that BGE's equity ratio is at least 48% within five business days after dividend payment.event has occurred.
Pepco is subject to certain dividend restrictions limits imposed by: (i) state corporate laws, which impose limitationsestablished by settlements approved by the MDPSC and DCPSC that prohibit Pepco from paying a dividend on its common shares if (a) after the funds that candividend payment, Pepco's equity ratio would be usedbelow 48% as calculated pursuant to pay dividends,the MDPSC's and (ii)DCPSC's ratemaking precedents, or (b) Pepco’s senior unsecured credit rating is rated by one of the prior rights of holders of future preferred stock, if any, and existing and future mortgage bonds and other long-term debt issued by Pepco and any other restrictions imposed in connection with the incurrence of liabilities.three major credit rating agencies below investment grade. No such event has occurred.
DPL is subject to certain dividend restrictions imposed by: (i) stateestablished by settlements approved by the DEPSC and MDPSC that prohibit DPL from paying a dividend on its common shares if (a) after the dividend payment, DPL's equity ratio would be below 48% as calculated pursuant to the DEPSC's and MDPSC's ratemaking precedents, or (b) DPL’s corporate laws, which impose limitations onissuer or senior unsecured credit rating, or its equivalent, is rated by any of the funds that can be used to pay dividends, and (ii)three major credit rating agencies below the prior rightsgenerally accepted definition of holders of existing and future preferred stock, mortgage bonds and other long-term debt issued by DPL and any other restrictions imposed in connection with the incurrence of liabilities.investment grade. No such event has occurred.
ACE is subject to certain dividend restrictions imposed by: (i) stateestablished by settlements approved by the NJBPU that prohibit ACE from paying a dividend on its common shares if (a) after the dividend payment, ACE's common equity ratio would be below 48% as calculated pursuant to the NJBPU's ratemaking precedents, or (b) ACE's senior corporate laws,issuer or senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. ACE is also subject to a dividend restriction which impose limitations on the funds that can be usedrequires ACE to pay dividendsnotify and the regulatory requirement that ACE obtain the prior approval of the NJBPU before dividends can be paid if its equity as a percent of its total capitalization, excluding securitization debt, falls below 30%; (ii) the prior rights of holders of existing and future preferred stock, mortgage bonds and other long-term debt issued by ACE and any other restrictions imposed in connection with the incurrence of liabilities; and (iii) certain provisions of the charter of ACE which impose restrictions on payment of common stock dividends for the benefit of preferred stockholders. Currently, the restriction in the ACE charter does not limit its ability to pay common stock dividends.. No such events have occurred.
Exelon’s Board of Directors approved an updated dividend policy providing an increasefor 2023. The 2023 quarterly dividend will be $0.36 per share.
As of 5% each year for the period covering 2018 through 2020, beginning with the March 2018 dividend.
At December 31, 2017,2022, Exelon had retained earnings of $13,503$4,597 million, including Generation’s undistributed earnings of $4,310 million, ComEd’sComEd had retained earnings of $1,132$2,030 million, consisting of retained earnings appropriated for future dividends of $2,771 million, partially offset by $1,639 million of unappropriated accumulated deficits, PECO’sPECO had retained earnings of $1,087$1,861 million, BGE’sBGE had retained earnings of $1,536$2,075 million, and PHI'sPHI had undistributed earningslosses of $(10)$352 million.

The following table sets forth Exelon’s quarterly cash dividends per share paid during 20172022 and 2016:2021:
20222021
(per share)Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Exelon$0.3375 $0.3375 $0.3375 $0.3375 $0.3825 $0.3825 $0.3825 $0.3825 
38

 2017 2016
(per share)
4th
Quarter
 
3rd
Quarter
 
2nd
Quarter
 
1st
Quarter
 
4th
Quarter
 
3rd
Quarter
 
2nd
Quarter
 
1st
Quarter
Exelon$0.328
 $0.328
 $0.328
 $0.328
 $0.318
 $0.318
 $0.318
 $0.310
The following table sets forth Generation's and PHI's quarterly distributions and ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's quarterly common dividend payments:
2017 201620222021
(in millions)
4th
Quarter
 
3rd
Quarter
 
2nd
Quarter
 
1st
Quarter
 
4th
Quarter
 
3rd
Quarter
 
2nd
Quarter
 
1st
Quarter
(in millions)4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
Generation$165
 $164
 $166
 $164
 $755
 $56
 $56
 $55
ComEd106
 105
 106
 105
 94
 92
 92
 91
ComEd144 145 145 144 127 127 126 127 
PECO72
 72
 72
 72
 69
 69
 70
 69
PECO100 99 100 100 85 85 84 85 
BGE50
 49
 50
 49
 45
 44
 45
 45
BGE74 75 75 76 73 73 72 74 
PHI44
 136
 62
 69
 99
 50
 16
 108
PHI125 230 293 102 98 191 333 81 
Pepco
 75
 28
 30
 44
 37
 16
 39
Pepco63 100 258 42 47 98 95 28 
DPL30
 28
 24
 30
 15
 1
 
 38
DPL48 39 15 41 41 43 23 40 
ACE15
 31
 12
 10
 39
 13
 
 11
ACE17 90 19 19 51 215 14 
First Quarter 20182023 Dividend
On January 30, 2018, the ExelonFebruary 14, 2023, Exelon's Board of Directors declared a first quarter 2018 regular quarterly dividend of $0.3450$0.36 per share on Exelon’s common stock for the first quarter of 2023. The dividend is payable on Friday, March 9, 2018,10, 2023, to shareholders of record of Exelon at the endas of the day5 p.m. Eastern time on Monday, February 15, 2018.

27, 2023.
39

ITEM 6.SELECTED FINANCIAL DATA[RESERVED]
Exelon
The selected financial data presented below has been derived from the audited consolidated financial statements of Exelon. This data is qualified in its entirety by reference to and should be read in conjunction with Exelon’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
40
 For the Years Ended December 31,
(In millions, except per share data)2017 
2016(a)
 2015 
2014(b)
 2013
Statement of Operations data:         
Operating revenues$33,531
 $31,360
 $29,447
 $27,429
 $24,888
Operating income4,260
 3,112
 4,409
 3,096
 3,669
Net income3,849

1,204

2,250

1,820

1,729
Net income attributable to common shareholders3,770
 1,134
 2,269
 1,623
 1,719
Earnings per average common share (diluted):         
Net income$3.97
 $1.22
 $2.54
 $1.88
 $2.00
Dividends per common share$1.31
 $1.26
 $1.24
 $1.24
 $1.46

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__________
(a)The 2016 financial results include the activity of PHI from the merger effective date of March 24, 2016 through December 31, 2016.
(b)On April 1, 2014, Generation assumed operational control of CENG’s nuclear fleet. As a result, the 2014 financial results include CENG’s results of operations on a fully consolidated basis.

 December 31,
(In millions)2017 2016 2015 2014 2013
Balance Sheet data:         
Current assets$11,834
 $12,412
 $15,334
 $11,853
 $9,562
Property, plant and equipment, net74,202
 71,555
 57,439
 52,170
 47,330
Total assets116,700

114,904

95,384

86,416

79,243
Current liabilities10,796
 13,457
 9,118
 8,762
 7,686
Long-term debt, including long-term debt to financing trusts32,565
 32,216
 24,286
 19,853
 18,165
Shareholders’ equity29,857
 25,837
 25,793
 22,608
 22,732

Generation
The selected financial data presented below has been derived from the audited consolidated financial statements of Generation. This data is qualified in its entirety by reference to and should be read in conjunction with Generation’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
 For the Years Ended December 31,
(In millions)2017 2016 2015 
2014(a)
 2013
Statement of Operations data:         
Operating revenues$18,466
 $17,751
 $19,135
 $17,393
 $15,360
Operating income921
 836
 2,275
 1,176
 1,677
Net income2,771
 558
 1,340
 1,019
 1,060
__________
(a)On April 1, 2014, Generation assumed operational control of CENG’s nuclear fleet. As a result, the 2014 financial results include CENG’s results of operations on a fully consolidated basis.

 December 31,
(In millions)2017 2016 2015 2014 2013
Balance Sheet data:         
Current assets$6,820
 $6,528
 $6,342
 $7,311
 $5,964
Property, plant and equipment, net24,906
 25,585
 25,843
 23,028
 20,111
Total assets48,387

46,974

46,529

44,951

40,700
Current liabilities4,189
 5,683
 4,933
 4,459
 3,842
Long-term debt, including long-term debt to affiliate8,644
 8,124
 8,869
 7,582
 7,111
Member’s equity13,630
 11,482
 11,635
 12,718
 12,725
ComEd
The selected financial data presented below has been derived from the audited consolidated financial statements of ComEd. This data is qualified in its entirety by reference to and should be read in conjunction with ComEd’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
 For the Years Ended December 31,
(In millions)2017 2016 2015 2014 2013
Statement of Operations data:         
Operating revenues$5,536
 $5,254
 $4,905
 $4,564
 $4,464
Operating income1,323
 1,205
 1,017
 980
 954
Net income567
 378
 426
 408
 249

 December 31,
(In millions)2017 2016 2015 2014 2013
Balance Sheet data:         
Current assets$1,364
 $1,554
 $1,518
 $1,723
 $1,540
Property, plant and equipment, net20,723
 19,335
 17,502
 15,793
 14,666
Total assets29,726

28,335

26,532

25,358

24,089
Current liabilities2,294
 2,938
 2,766
 1,923
 2,032
Long-term debt, including long-term debt to financing trusts6,966
 6,813
 6,049
 5,870
 5,235
Shareholders’ equity9,542
 8,725
 8,243
 7,907
 7,528
PECO
The selected financial data presented below has been derived from the audited consolidated financial statements of PECO. This data is qualified in its entirety by reference to and should be read in conjunction with PECO’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
 For the Years Ended December 31,
(In millions)2017 2016 2015 2014 2013
Statement of Operations data:         
Operating revenues$2,870
 $2,994
 $3,032
 $3,094
 $3,100
Operating income655
 702
 630
 572
 666
Net income434
 438
 378
 352
 395
 December 31,
(In millions)2017 2016 2015 2014 2013
Balance Sheet data:         
Current assets$822
 $757
 $842
 $645
 $821
Property, plant and equipment, net8,053
 7,565
 7,141
 6,801
 6,384
Total assets10,170

10,831

10,367

9,860

9,521
Current liabilities1,267
 727
 944
 653
 889
Long-term debt, including long-term debt to financing trusts2,587
 2,764
 2,464
 2,416
 2,120
Shareholder's equity3,577
 3,415
 3,236
 3,121
 3,065

BGE
The selected financial data presented below has been derived from the audited consolidated financial statements of BGE. This data is qualified in its entirety by reference to and should be read in conjunction with BGE’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
 For the Years Ended December 31,
(In millions)2017 2016 2015 2014 2013
Statement of Operations data:         
Operating revenues$3,176
 $3,233
 $3,135
 $3,165
 $3,065
Operating income614
 550
 558
 439
 449
Net income307
 294
 288
 211
 210
 December 31,
(In millions)2017 2016 2015 2014 2013
Balance Sheet data:         
Current assets$811
 $842
 $845
 $951
 $1,009
Property, plant and equipment, net7,602
 7,040
 6,597
 6,204
 5,864
Total assets9,104

8,704

8,295

8,056

7,839
Current liabilities760
 707
 1,134
 794
 800
Long-term debt, including long-term debt to financing trusts and variable interest entities2,577
 2,533
 1,732
 2,109
 2,179
Shareholder's equity3,141
 2,848
 2,687
 2,563
 2,365
PHI
The selected financial data presented below has been derived from the audited consolidated financial statements of PHI. This data is qualified in its entirety by reference to and should be read in conjunction with PHI’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
 Successor  Predecessor
 For the Year Ended
December 31,
 March 24 to December 31  January 1 to March 23, For the Years Ended December 31,
(In millions)2017 2016  2016 2015 2014
Statement of Operations data(a):
         
Operating revenues$4,679
 $3,643
  $1,153
 $4,935
 $4,808
Operating income769
 93
  105
 673
 605
Net income (loss) from continuing operations362
 (61)  19
 318
 242
Net income (loss)362
 (61)  19
 327
 242

 Successor  Predecessor
(In millions)December 31, 2017 December 31, 2016  December 31, 2015
Balance Sheet data(a):
      
Current assets$1,551
 $1,838
  $1,474
Property, plant and equipment, net12,498
 11,598
  10,864
Total assets21,247
 21,025
  16,188
Current liabilities1,931
 2,284
  2,327
Long-term debt5,478
 5,645
  4,823
Preferred Stock
 
  183
Member’s equity/Shareholders' equity8,825
 8,016
  4,413
__________
(a)As a result of the PHI Merger in 2016, Exelon has elected to present PHI's selected financial data for the periods reflected above.
Pepco
The selected financial data presented below has been derived from the audited consolidated financial statements of Pepco. This data is qualified in its entirety by reference to and should be read in conjunction with Pepco’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
 For the Years Ended December 31,
(In millions)2017 2016 2015 2014
Statement of Operations data(a):
       
Operating revenues$2,158
 $2,186
 $2,129
 $2,055
Operating income399
 174
 385
 349
Net income205
 42
 187
 171
 December 31,
(In millions)2017 2016 2015
Balance Sheet data(a):
     
Current assets$710
 $684
 $726
Property, plant and equipment, net6,001
 5,571
 5,162
Total assets7,832
 7,335
 6,908
Current liabilities550
 596
 455
Long-term debt2,521
 2,333
 2,340
Shareholders’ equity2,533
 2,300
 2,240
__________
(a)As a result of the PHI Merger in 2016, Exelon has elected to present Pepco's selected financial data for the periods reflected above.

DPL
The selected financial data presented below has been derived from the audited consolidated financial statements of DPL. This data is qualified in its entirety by reference to and should be read in conjunction with DPL’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
 For the Years Ended December 31,
(In millions)2017 2016 2015 2014
Statement of Operations data(a):
       
Operating revenues$1,300
 $1,277
 $1,302
 $1,282
Operating income229
 50
 165
 207
Net income (loss)121
 (9) 76
 104
 December 31,
(In millions)2017 2016 2015
Balance Sheet data(a):
     
Current assets$325
 $370
 $388
Property, plant and equipment, net3,579
 3,273
 3,070
Total assets4,357
 4,153
 3,969
Current liabilities547
 381
 564
Long-term debt1,217
 1,221
 1,061
Shareholders’ equity1,335
 1,326
 1,237
__________
(a)As a result of the PHI Merger in 2016, Exelon has elected to present DPL's selected financial data for the periods reflected above.
ACE
The selected financial data presented below has been derived from the audited consolidated financial statements of ACE. This data is qualified in its entirety by reference to and should be read in conjunction with ACE’s Consolidated Financial Statements and ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
 For the Years Ended December 31,
(In millions)2017 2016 2015 2014
Statement of Operations data(a):
       
Operating revenues$1,186
 $1,257
 $1,295
 $1,210
Operating income157
 7
 134
 137
Net income (loss)77
 (42) 40
 46

 December 31,
(In millions)2017 2016 2015
Balance Sheet data(a):
     
Current assets$258
 $399
 $546
Property, plant and equipment, net2,706
 2,521
 2,322
Total assets3,445
 3,457
 3,387
Current liabilities619
 320
 297
Long-term debt840
 1,120
 1,153
Shareholders’ equity1,043
 1,034
 1,000
__________
(a)As a result of the PHI Merger in 2016, Exelon has elected to present ACE's selected financial data for the periods reflected above.

Item 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
(Dollars in millions except per share data, unless otherwise noted)
Exelon
Executive Overview
Exelon a utility services holding company, operates through the following principal subsidiaries:
Generation, whose integrated business consists of the generation, physical delivery and marketing of power across multiple geographical regions through its customer-facing business, Constellation, which sells electricity and natural gas to both wholesale and retail customers. Generation also sells renewable energy and other energy-related products and services.
ComEd, whose business consists of the purchase and regulated retail sale of electricity and the provision of electricity transmission and distribution services in northern Illinois, including the City of Chicago.
PECO, whose business consists of the purchase and regulated retail sale of electricity and the provision of electricity distribution and transmission services in southeastern Pennsylvania, including the City of Philadelphia, and the purchase and regulated retail sale of natural gas and the provision of distribution services in the Pennsylvania counties surrounding the City of Philadelphia.
BGE, whose business consists of the purchase and regulated retail sale of electricity and natural gas and the provision of electricity distribution and transmission and gas distribution services in central Maryland, including the City of Baltimore.
Pepco, whose business consists of the purchase and regulated retail sale of electricity and the provision of electricity distribution and transmission in the District of Columbia and major portions of Prince George's County and Montgomery County in Maryland.
DPL, whose business consists of the purchase and regulated retail sale of electricity and the provision of electricity distribution and transmission services in portions of Maryland and Delaware, and the purchase and regulated retail sale of natural gas and the provision of natural gas distribution services in northern Delaware.
ACE, whose business consists of the purchase and regulated retail sale of electricity and the provision of electricity transmission and distribution services in southern New Jersey.
Pepco, DPL and ACE are operating companies of PHI, which is a utility services holding company engaged in the energy distribution and a wholly owned subsidiary of Exelon.transmission businesses through ComEd, PECO, BGE, Pepco, DPL, and ACE.
Exelon has twelvesix reportable segments consisting of Generation’s six reportable segments (Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Power Regions in Generation), ComEd, PECO, BGE, and PHI's three utility reportable segments (Pepco,Pepco, DPL, and ACE).ACE. See Note 25 -1 — Significant Accounting Policies and Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information regarding Exelon's principal subsidiaries and reportable segments.

Through its business services subsidiary BSC, Exelon provides its operating subsidiaries with a variety of corporate governance support services including corporate strategy and development, legal, human resources, information technology, finance, real estate, security, corporate communications and supply at cost. The costs of these services are directly charged or allocated to the applicable operating segments. The services are provided pursuant to service agreements. Additionally, the results of Exelon’s corporate operations include interest costs and income from various investment and financing activities.
PHISCO, a wholly owned subsidiary of PHI, provides a variety of support services at cost, including legal, finance, engineering, distribution and transmission planning, asset management, system operations, and power procurement, to PHI and its operating subsidiaries. These services are directly charged or allocated pursuant to service agreements among PHISCO and the participating operating subsidiaries.
Exelon’s consolidated financial information includes the results of its eightseven separate operating subsidiary registrants, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE, which, along with Exelon, are collectively referred to as the Registrants. The following combined Management’s Discussion and Analysis of Financial Condition and Results of Operations is separately filed by Exelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE. However, none of the Registrants makes any representation as to information related solely to any of the other Registrants. For discussion of the Utility Registrants' year ended December 31, 2021 compared to the year ended December 31, 2020, refer to ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS in the 2021 Recast Form 10-K, which was filed with the SEC on June 30, 2022.

COVID-19. The Registrants have taken steps to mitigate the potential risks posed by the global outbreak (pandemic) of COVID-19. The Registrants provide a critical service to our customers which means that it is paramount that we keep our employees who operate our businesses safe and minimize unnecessary risk of exposure to the virus by taking extra precautions for employees who work in the field and in our facilities. The Registrants have implemented work from home policies where appropriate, and imposed travel limitations on employees.
The Registrants continue to implement strong physical and cyber-security measures to ensure that our systems remain functional in order to both serve our operational needs with a remote workforce and keep them running to ensure uninterrupted service to our customers.
There were no changes in internal control over financial reporting as a result of COVID-19 that materially affected, or are reasonably likely to materially affect, any of the Registrants’ internal control over financial reporting. See ITEM 9A. CONTROLS AND PROCEDURES for additional information.
There were no material impacts to Exelon from unfavorable economic conditions due to COVID-19 for the years ended December 31, 2022 and 2021, other than the 2022 impairment discussed below.
The Registrants assessed long-lived assets, goodwill, and investments for recoverability. Exelon and BGE recorded a pre-tax impairment charge of $48 million in 2022 as a result of COVID-19 impacts on office use. See Note 12 — Asset Impairments for additional information related to this impairment assessment. None of the other Registrants recorded material impairment charges in 2022 as a result of COVID-19. Additionally, there were no material impairment charges recorded in 2021 as a result of COVID-19.
The Registrants will continue to monitor developments affecting their workforce, customers, and suppliers and will take additional precautions that they determine to be necessary in order to mitigate the impacts. The Registrants cannot predict the full extent of the impacts of COVID-19, which will depend on, among other things, the rate, and public perceptions of the effectiveness, of vaccinations and rate of resumption of business activity.

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Financial ResultsWater Quality
Under the federal Clean Water Act, NPDES permits for discharges into waterways are required to be obtained from the EPA or from the state environmental agency to which the permit program has been delegated, and permits must be renewed periodically. Certain of OperationsExelon's facilities discharge water into waterways and are therefore subject to these regulations and operate under NPDES permits.
GAAP ResultsUnder Clean Water Act Section 404 and state laws and regulations, the Registrants may be required to obtain permits for projects involving dredge or fill activities in waters of Operationsthe United States.
Where Registrants’ facilities are required to secure a federal license or permit for activities that may result in a discharge to covered waters, they may be required to obtain a state water quality certification under Clean Water Act section 401.
Solid and Hazardous Waste and Environmental Remediation
CERCLA provides for response and removal actions coordinated by the EPA in the event of threatened releases of hazardous substances and authorizes the EPA either to clean up sites at which hazardous substances have created actual or potential environmental hazards or to order persons responsible for the situation to do so. Under CERCLA, generators and transporters of hazardous substances, as well as past and present owners and operators of hazardous waste sites, are strictly, jointly and severally liable for the cleanup costs of hazardous waste at sites, many of which are listed by the EPA on the National Priorities List (NPL). These PRPs can be ordered to perform a cleanup, can be sued for costs associated with an EPA-directed cleanup, may voluntarily settle with the EPA concerning their liability for cleanup costs, or may voluntarily begin a site investigation and site remediation under state oversight. Most states have also enacted statutes that contain provisions substantially similar to CERCLA. Such statutes apply in many states where the Registrants currently own or operate, or previously owned or operated, facilities, including Delaware, Illinois, Maryland, New Jersey, and Pennsylvania and the District of Columbia. In addition, RCRA governs treatment, storage and disposal of solid and hazardous wastes and cleanup of sites where such activities were conducted.
The following table sets forth Exelon's GAAP consolidated results ofRegistrants’ operations have in the past, and may in the future, require substantial expenditures in order to comply with these Federal and state environmental laws. Under these laws, the Registrants may be liable for the year ended December 31, 2017 compared to the same period in 2016. 2016 amounts includecosts of remediating environmental contamination of property now or formerly owned by them and of property contaminated by hazardous substances generated by them. The Registrants own or lease a number of real estate parcels, including parcels on which their operations or the operations of PHI,others may have resulted in contamination by substances that are considered hazardous under environmental laws. The Registrants and their subsidiaries are, or could become in the future, parties to proceedings initiated by the EPA, state agencies, and/or other responsible parties under CERCLA and RCRA or similar state laws with respect to a number of sites or may undertake to investigate and remediate sites for which they may be subject to enforcement actions by an agency or third-party.
ComEd’s and PECO’s environmental liabilities primarily arise from contamination at former MGP sites, which were operated by ComEd's and PECO's predecessor companies. ComEd, pursuant to an ICC order, and PECO, pursuant to settlements of natural gas distribution rate cases with the PAPUC, have an on-going process to recover certain environmental remediation costs of the MGP sites through a provision within customer rates. BGE, Pepco, DPL, and ACE from March 24, 2016 throughdo not have material contingent liabilities relating to MGP sites. The amount to be
16

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expended in 2023 for compliance with environmental remediation related to contamination at former MGP sites and other gas purification sites is estimated to be approximately $52 million which consists primarily of $44 million at ComEd.
As of December 31, 2016. All amounts presented below are before2022, the impact of income taxes, except as noted.Registrants have established appropriate contingent liabilities for environmental remediation requirements. In addition, the Registrants may be required to make significant additional expenditures not presently determinable for other environmental remediation costs.
 For the Years Ended December 31, 
Favorable
(Unfavorable)
Variance
  2017 2016 
 Generation ComEd PECO BGE PHI Other Exelon 
Exelon(b)
 
Operating revenues$18,466
 $5,536
 $2,870
 $3,176
 $4,679
 $(1,196) $33,531
 $31,360
 $2,171
Purchased power and fuel expense9,690
 1,641
 969
 1,133
 1,716
 (1,114) 14,035
 12,640
 (1,395)
Revenue net of purchased
power and fuel expense(a)
8,776
 3,895
 1,901
 2,043
 2,963
 (82) 19,496
 18,720
 776
Other operating expenses                 
Operating and maintenance6,291
 1,427
 806
 716
 1,068
 (182) 10,126
 10,048
 (78)
Depreciation and amortization1,457
 850
 286
 473
 675
 87
 3,828
 3,936
 108
Taxes other than income555
 296
 154
 240
 452
 34
 1,731
 1,576
 (155)
Total other operating expenses8,303
 2,573
 1,246
 1,429
 2,195
 (61) 15,685
 15,560
 (125)
Gain (Loss) on sales of assets2
 1
 
 
 1
 (1) 3
 (48) 51
Bargain purchase gain233
 
 
 
 
 
 233
 
 233
Gain on deconsolidation of business213
 
 
 
 
 
 213
 
 213
Operating income (loss)921
 1,323
 655
 614
 769
 (22) 4,260
 3,112
 1,148
Other income and (deductions)                 
Interest expense, net(440) (361) (126) (105) (245) (283) (1,560) (1,536) (24)
Other, net948
 22
 9
 16
 54
 7
 1,056
 413
 643
Total other income and (deductions)508
 (339) (117) (89) (191) (276) (504) (1,123) 619
Income (loss) before income taxes1,429
 984
 538
 525
 578
 (298) 3,756
 1,989
 1,767
Income taxes(1,375) 417
 104
 218
 217
 294
 (125) 761
 886
Equity in (losses) earnings of unconsolidated affiliates(33) 
 
 
 1
 
 (32) (24) (8)
Net income (loss)2,771
 567
 434
 307
 362
 (592) 3,849
 1,204
 2,645
Net income attributable to noncontrolling interests and preference stock dividends77
 
 
 
 
 2
 79
 70
 (9)
Net income (loss) attributable to common shareholders$2,694
 $567
 $434
 $307
 $362
 $(594) $3,770
 $1,134
 $2,636
__________
(a)The Registrants’ evaluate operating performance using the measure of revenues net of purchased power and fuel expense. The Registrant's believe that revenues net of purchased power and fuel expense is a useful measurement because it provides information that can be used to evaluate its operational performance. Revenues net of purchased power and fuel expense is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.
(b)As a result of the PHI Merger, Exelon includes the consolidated results of PHI, Pepco, DPL and ACE from March 24, 2016 through December 31, 2016.

Exelon’s Net income attributable to common shareholders was $3,770 million for the year ended December 31, 2017 as compared to $1,134 million for the year ended December 31, 2016, and diluted earnings per average common share were $3.97 for the year ended December 31, 2017 as compared to $1.22 for the year ended December 31, 2016.
Revenue net of purchased power and fuel expense, which is a non-GAAP measure discussed below, increased by $776 million as compared to 2016. The year-over-year increase was primarily due to the following favorable factors:
Increase of $104 million at BGE primarily due to the impacts of the electric and natural gas distribution rate orders issued by the MDPSC in June 2016 and July 2016 and an increase in transmission formula rate revenues;
Increase of $99 million at ComEd primarily due to increased electric distribution and transmission formula rate revenues (reflecting the impacts of increased capital investment and higher allowed electric distribution ROE), partially offset by lower revenues resulting from the change to defer and recover over time energy efficiency costs pursuant to FEJA and the impact of favorable weather conditions in 2016; and
Increase of $767 million in Revenue net of purchased power and fuel due to the inclusion of PHI's results for the year ended December 31, 2017 compared to the period March 24, 2016 to December 31, 2016, as well as distribution rate increases effective in 2016 and 2017.
The year-over-year increase in Revenue net of purchased power and fuel expense was partially offset by the following unfavorable factors:
Decrease of $134 million at Generation due to mark-to-market losses of $175 million in 2017 compared to mark-to-market losses of $41 million in 2016;
Decrease of $46 million at PECO primarily due to unfavorable weather conditions; and
Decrease of $11 million at Generation primarily due to lower realized energy prices, the impacts of lower load volumes delivered due to mild weather in the third quarter 2017, the conclusion of the Ginna Reliability Support Services Agreement and the impact of declining natural gas prices on Generation's natural gas portfolio, partially offset by the impact of the New York CES, increased nuclear volumes primarily as a result of the acquisition of FitzPatrick, higher capacity prices, the addition of two combined-cycle gas turbines in Texas and lower nuclear fuel prices.
Operating and maintenance expense increased by $78 million as compared to 2016. The year-over-year increase was primarily due to the following unfavorable factors:
Increase of $307 million at Generation due to higher asset impairment charges;
Increase of $127 million at Generation primarily due to Generation’s decision in 2017 to early retire the TMI nuclear facility compared to the previous decision in 2016 to early retire the Clinton and Quad Cities nuclear facilities;
Increase of $104 million at Generation due to increased nuclear refueling outage costs;
Increase of $84 million at Generation due to the annual update of the Generation nuclear decommissioning obligation related to the non-regulatory units in 2017 versus 2016; and
Increase of $253 million at PHI due to the inclusion of PHI's results for the year ended December 31, 2017 compared to the period March 24, 2016 to December 31, 2016.

The year-over-year increase in Operating and maintenance expense was partially offset by the following favorable factors:
Decrease of $665 million at Exelon due to merger commitment and other merger-related costs of $73 million in 2017 compared to $738 million in 2016;
Decrease of $85 million at ComEd due to the change to defer and recover over time energy efficiency costs pursuant to the Illinois Future Energy Jobs Act; and
Decrease of $21 million at BGE primarily due to certain disallowances contained in the June and July 2016 rate orders, partially offset by the impact of the favorable 2016 settlement of the Baltimore City conduit fee dispute.
Depreciation and amortization expense decreased by $108 million primarily due to lower accelerated depreciation and amortization expense as a result of the 2017 decision to early retire the TMI nuclear facility compared to the previous decision in 2016 to early retire the Clinton and Quad Cities nuclear facilities, partially offset by increased depreciation expense as a result of ongoing capital expenditures across all operating companies and the inclusion of PHI's results for the year ended December 31, 2017 compared to the period March 24, 2016 to December 31, 2016.
Taxes other than income increased by $155 million primarily due to increased real estate taxes and sales and use taxes at Generation, as well as the inclusion of PHI's results for the year ended December 31, 2017 compared to the period March 24, 2016 to December 31, 2016.
Gain (Loss) on sales of assets increased by $51 million primarily due to certain Generation projects and contracts being terminated or renegotiated in 2016, partially offset by a gain associated with Generation’s sale of the retired New Boston generating site in 2016.
Bargain purchase gain increased by $233 million due to the gain associated with Generation's acquisition of FitzPatrick in 2017.
Gain on deconsolidation of business increased by $213 million due to the deconsolidation of EGTP's net liabilities, which included the previously impaired assets and related debt, as a result of the November 2017 bankruptcy filing.
Interest expense, net increased by $24 million primarily due to the inclusion of PHI's results for the year ended December 31, 2017 compared to the period March 24, 2016 to December 31, 2016, partially offset by additional interest related to Exelon's like-kind exchange tax position recorded in 2016 compared to 2017.
Other, net increased by $643 million primarily due to higher net unrealized and realized gains on NDT funds at Generation for the year ended December 31, 2017 as compared to the same period in 2016 and the penalty recorded in 2016 related to Exelon's like-kind exchange tax position.
Exelon’s effective income tax rates for the years ended December 31, 2017 and 2016 were (3.3)% and 38.3%, respectively. Exelon's effective income tax rate for the year ended December 31, 2017 includes the impact of the Tax Cuts and Jobs Act. See Note 143Income TaxesRegulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information regarding the componentsRegistrants’ environmental matters, remediation efforts, and related impacts to the Registrants’ Consolidated Financial Statements.
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Information about our Executive Officers as of February 14, 2023
Exelon
NameAgePositionPeriod
Butler, Calvin G. Jr.53 President and Chief Executive Officer, Exelon2022 - Present
Chief Operating Officer, Exelon2021 - 2022
Senior Executive Vice President, Exelon2019 - 2022
Chief Executive Officer, Exelon Utilities2019 - 2022
Chief Executive Officer, BGE2014 - 2019
Jones, Jeanne43 Executive Vice President and Chief Financial Officer, Exelon2022 - Present
Senior Vice President, Corporate Finance, Exelon2021 - 2022
Senior Vice President and Chief Financial Officer, ComEd2018 - 2021
Glockner, David62 Executive Vice President, Compliance, Audit and Risk, Exelon2020 - Present
Chief Compliance Officer, Citadel LLC2017 - 2020
Littleton, Gayle E.50 Executive Vice President, General Counsel, Exelon2020 - Present
Partner, Jenner & Block LLP2015 - 2020
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Trpik, Joseph R.53 Senior Vice President and Corporate Controller, Exelon2022 - Present
Interim Senior Vice President & CFO, ComEd2021 - 2022
Senior Vice President & CFO, Exelon Utilities2018 - 2021
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ComEd
NameAgePositionPeriod
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Donnelly, Terence R.62 President and Chief Operating Officer, ComEd2018 - Present
Graham, Elisabeth J.44 Senior Vice President, Chief Financial Officer & Treasurer, ComEd2022 - Present
Treasurer, Exelon2018 - 2022
Rippie, E. Glenn62 Senior Vice President and General Counsel, ComEd2022 - Present
Senior Vice President and Deputy General Counsel, Energy Regulation, Exelon2022 - Present
Partner, Jenner & Block LLP2019 - 2021
Partner and Chief Financial Officer, Rooney, Rippie & Ratnaswamy, LLP2010 - 2019
Washington, Melissa53 Senior Vice President, Customer Operations, ComEd2021 - Present
Senior Vice President, Governmental and External Affairs, ComEd2019 - 2021
Vice President, Governmental and External Affairs, ComEd2019 - 2019
Vice President, External Affairs and Large Customer Services, ComEd2016 - 2019
Binswanger, Lewis63 Senior Vice President, Governmental, Regulatory and External Affairs, ComEd2022 - Present
Vice President, External Affairs, Nicor Gas2013 - 2022
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PECO
NameAgePositionPeriod
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Levine, Nicole46 Senior Vice President and Chief Operations Officer, PECO2022 - Present
Vice President, Electrical Operations, PECO2018 - 2022
Humphrey, Marissa43 Senior Vice President, Chief Financial Officer and Treasurer, PECO2022 - Present
Vice President, Regulatory Policy and Strategy (NJ/DE), PHI, DPL, and ACE2021 - 2022
Vice President, Finance, Exelon Utilities2019 - 2020
Vice President, Financial Planning and Analysis, PHI, Pepco, DPL, and ACE2016 - 2019
Murphy, Elizabeth A.63 Senior Vice President, Governmental, Regulatory and External Affairs, PECO2016 - Present
Williamson, Olufunmilayo44 Senior Vice President, Customer Operations, PECO2021 - Present
Senior Vice President, Chief Commercial Risk Officer, Exelon2017 - 2020
Gay, Anthony57 Vice President and General Counsel, PECO2019 - Present
Vice President, Governmental and External Affairs, PECO2016 - 2019
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BGE
NameAgePositionPeriod
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Dickens, Derrick58 Senior Vice President and Chief Operating Officer, BGE2021 - Present
Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2020 - 2021
Vice President, Technical Services, BGE2016 - 2020
Vahos, David M.50 Senior Vice President, Chief Financial Officer and Treasurer, BGE2016 - Present
Núñez, Alexander G. 51 Senior Vice President, Governmental, Regulatory and External Affairs, BGE2021 - Present
Senior Vice President, Regulatory Affairs and Strategy, BGE2020 - 2021
Senior Vice President, Regulatory and External Affairs, BGE2016 - 2020
Galambos, Denise60 Senior Vice President, Customer Operations, BGE2021 - Present
Vice President, Utility Oversight, Exelon Utilities2020 - 2021
Vice President, Human Resources, BGE2018 - 2020
Ralph, David56 Vice President and General Counsel, BGE2021 - Present
Associate General Counsel, BGE2019 - 2021
Assistant General Counsel, Exelon2017 - 2019
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PHI, Pepco, DPL, and ACE
NameAgePositionPeriod
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Olivier, Tamla50 Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Customer Operations, BGE2020 - 2021
Senior Vice President, Constellation NewEnergy, Inc.2016 - 2020
Barnett, Phillip S.59 Senior Vice President, Chief Financial Officer and Treasurer, PHI, Pepco, DPL, and ACE2018 - Present
Oddoye, Rodney46 Senior Vice President, Governmental, Regulatory and External Affairs, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Governmental and External Affairs, BGE2020 - 2021
Vice President, Customer Operations, BGE2018 - 2020
Bancroft, Anne56 Vice President and General Counsel, PHI, Pepco, DPL, and ACE2021 - Present
Associate General Counsel, Exelon2017 - 2021
Bell-Izzard, Morlon57 Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2021 - Present
Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2019 - 2021
Director, Utility Performance Assessment, Exelon2016 - 2019
ITEM 1A.RISK FACTORS
Each of the effective income Registrants operates in a complex market and regulatory environment that involves significant risks, many of which are beyond that Registrant’s direct control. Such risks, which could negatively affect one or more of the Registrants’ consolidated financial statements, fall primarily under the categories below:
Risks related to market and financial factors primarily include:
the demand for electricity, reliability of service, and affordability in the markets where the Utility Registrants conduct their business,
the ability of the Utility Registrants to operate their respective transmission and distribution assets, their ability to access capital markets, and the impacts on their results of operations, financial condition or liquidity/cash flows due to public health crises, epidemics or pandemics, such as COVID-19, and
emerging technologies and business models, including those related to climate change mitigation and transition to a low carbon economy.
Risks related to legislative, regulatory, and legal factors primarily include changes to, and compliance with, the laws and regulations that govern:
utility regulatory business models,
environmental and climate policy, and
tax rates.policy.
For
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Risks related to operational factors primarily include:
changes in the global climate could produce extreme weather events, which could put the Registrant’s facilities at risk, and such changes could also affect the levels and patterns of demand for energy and related services,
the ability of the Utility Registrants to maintain the reliability, resiliency, and safety of their energy delivery systems, which could affect their ability to deliver energy to their customers and affect their operating costs, and
physical and cyber security risks for the Utility Registrants as the owner-operators of transmission and distribution facilities.
Risks related to the separation primarilyinclude:
challenges to achieving the benefits of separation and
performance by Exelon and Constellation under the transaction agreements, including indemnification responsibilities.
There may be further detailrisks and uncertainties that are not presently known or that are not currently believed to be material that could negatively affect the Registrants' consolidated financial statements in the future.
Risks Related to Market and Financial Factors
The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry (All Registrants).
Advancements in power generation technology, including commercial and residential solar generation installations and commercial micro turbine installations, are improving the cost-effectiveness of customer self-supply of electricity. Improvements in energy storage technology, including batteries and fuel cells, could also better position customers to meet their around-the-clock electricity requirements. Improvements in energy efficiency of lighting, appliances, equipment and building materials will also affect energy consumption by customers. Changes in power generation, storage, and use technologies could have significant effects on customer behaviors and their energy consumption.
These developments could affect levels of customer-owned generation, customer expectations, and current business models and make portions of the Utility Registrants' transmission and/or distribution facilities uneconomic prior to the end of their useful lives. Increasing pressure from both the private and public sectors to take actions to mitigate climate change could also push the speed and nature of this transition. These factors could affect the Registrants’ consolidated financial statements through, among other things, increased operating and maintenance expenses, increased capital expenditures, and potential asset impairment charges or accelerated depreciation over shortened remaining asset useful lives.
Market performance and other factors could decrease the value of employee benefit plan assets and could increase the related employee benefit plan obligations, which then could require significant additional funding (All Registrants).
Disruptions in the capital markets and their actual or perceived effects on particular businesses and the greater economy could adversely affect the value of the investments held within Exelon’s employee benefit plan trusts. The asset values are subject to market fluctuations and will yield uncertain returns, which could fall below Exelon's projected return rates. A decline in the market value of the pension and OPEB plan assets would increase the funding requirements associated with Exelon’s pension and OPEB plan obligations. Additionally, Exelon’s pension and OPEB plan liabilities are sensitive to changes in interest rates. As interest rates decrease, the liabilities increase, potentially increasing benefit costs and funding requirements. Changes in demographics, including increased numbers of retirements or changes in life expectancy assumptions or changes to Social Security or Medicare eligibility requirements could also increase the costs and funding requirements of the obligations related to the pension and OPEB plans. See Note 14Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information.
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The Registrants could be negatively affected by unstable capital and credit markets (All Registrants).
The Registrants rely on the capital markets, particularly for publicly offered debt, as well as the banking and commercial paper markets, to meet their financial commitments and short-term liquidity needs. Disruptions in the capital and credit markets in the United States or abroad could negatively affect the Registrants’ ability to access the capital markets or draw on their respective bank revolving credit facilities. The banks may not be able to meet their funding commitments to the Registrants if they experience shortages of capital and liquidity or if they experience excessive volumes of borrowing requests within a short period of time. The inability to access capital markets or credit facilities, and longer-term disruptions in the capital and credit markets because of uncertainty, changing or increased regulation, reduced alternatives, or failures of significant financial institutions could result in the deferral of discretionary capital expenditures, or require a reduction in dividend payments or other discretionary uses of cash. In addition, the Registrants have exposure to worldwide financial markets, including Europe, Canada, and Asia. Disruptions in these markets could reduce or restrict the Registrants’ ability to secure sufficient liquidity or secure liquidity at reasonable terms. As of December 31, 2022, approximately 23%, 10%, and 16% of the Registrants’ available credit facilities were with European, Canadian, and Asian banks, respectively. Additionally, higher interest rates may put pressure on the Registrants’ overall liquidity profile, financial health and impact financial results. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the credit facilities.
If any of the Registrants were to experience a downgrade in its credit ratings to below investment grade or otherwise fail to satisfy the credit standards in its agreements with its counterparties or regulatory financial requirements, it would be required to provide significant amounts of collateral that could affect its liquidity and could experience higher borrowing costs (All Registrants).
The Utility Registrants' operating agreements with PJM and PECO's, BGE's, and DPL's natural gas procurement contracts contain collateral provisions that are affected by their credit rating and market prices. If certain wholesale market conditions were to exist and the Utility Registrants were to lose their investment grade credit ratings (based on their senior unsecured debt ratings), they would be required to provide collateral in the forms of letters of credit or cash, which could have a material adverse effect upon their remaining sources of liquidity. PJM collateral posting requirements will generally increase as market prices rise and decrease as market prices fall. Collateral posting requirements for PECO, BGE, and DPL, with respect to their natural gas supply contracts, will generally increase as forward market prices fall and decrease as forward market prices rise. If the Utility Registrants were downgraded, they could experience higher borrowing costs as a result of the downgrade. In addition, changes in ratings methodologies by the agencies could also have an adverse negative impact on the ratings of the Utility Registrants.
The Utility Registrants conduct their respective businesses and operate under governance models and other arrangements and procedures intended to assure that the Utility Registrants are treated as separate, independent companies, distinct from Exelon and other Exelon subsidiaries in order to isolate the Utility Registrants from Exelon and other Exelon subsidiaries in the event of financial difficulty at Exelon or another Exelon subsidiary. These measures (commonly referred to as “ring-fencing”) could help avoid or limit a downgrade in the credit ratings of the Utility Registrants in the event of a reduction in the credit rating of Exelon. Despite these ring-fencing measures, the credit ratings of the Utility Registrants could remain linked, to some degree, to the credit ratings of Exelon. Consequently, a reduction in the credit rating of Exelon could result in a reduction of the credit rating of some or all of the Utility Registrants. A reduction in the credit rating of a Utility Registrant could have a material adverse effect on the Utility Registrant.
See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources — Credit Matters and Cash Requirements — Security Ratings for additional information regarding the potential impacts of credit downgrades on the Registrants’ cash flows.
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The impacts of significant economic downturns or increases in customer rates, could lead to decreased volumes delivered and increased expense for uncollectible customer balances (All Registrants).
The impacts of significant economic downturns on the Utility Registrants' customers and the related regulatory limitations on residential service terminations for the Utility Registrants, could result in an increase in the number of uncollectible customer balances and related expense. Further, increases in customer rates, including those related to increases in purchased power and natural gas prices, could result in declines in customer usage and lower revenues for the Utility Registrants that do not have decoupling mechanisms.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK for additional information on the Registrants’ credit risk.
Public health crises, epidemics, or pandemics, such as COVID-19 could negatively impact the Registrants' results (All Registrants).
COVID-19 disrupted economic activity in the Registrants’ respective markets and negatively affected the Registrants’ results of operations in 2020. However, the financial resultsimpacts were not material for the years ended December 31, 20172021 and 2016, including explanationDecember 31, 2022, other than the 2022 impairment disclosure within Note 11 — Asset Impairments. The Registrants cannot predict the full extent of the non-GAAP measure revenues netimpacts of purchased powerCOVID-19, which will depend on, among other things, the rate, and fuel expense, seepublic perceptions of the discussionseffectiveness, of Resultsvaccinations and rate of Operations by Segment below.

Adjusted (non-GAAP) Operating Earnings
Exelon’s Adjusted (non-GAAP) operating earnings for the year ended December 31, 2017 were $2,471 million, or $2.60 per diluted share, compared with Adjusted (non-GAAP) operating earningsresumption of $2,488 million, or $2.68 per diluted share, for the same period in 2016.business activity. In addition, any future widespread pandemic or other local or global health issue could adversely affect our vendors, competitors or customers and customer demand as well as the Registrants’ ability to net income, Exelon evaluates its operating performance using the measure of Adjusted (non-GAAP) operating earnings because management believes it represents earnings directly related to the ongoing operations of the business. Adjusted (non-GAAP) operating earnings exclude certain costs, expenses, gainsoperate their transmission and losses and other specified items. This information is intended to enhance an investor’s overall understanding of year-to-year operating results and provide an indication of Exelon’s baseline operating performance excluding items that are considered by management to be not directly related to the ongoing operations of the business. In addition, this information is among the primary indicators management uses as a basisdistribution assets. See Item 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - Executive Overview for evaluating performance, allocating resources, setting incentive compensation targets and planning and forecasting of future periods. Adjusted (non-GAAP) operating earnings is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.

The following table provides a reconciliation between Net income attributable to common shareholders as determined in accordance with GAAP and Adjusted (non-GAAP) operating earnings for the year ended December 31, 2017 as compared to 2016:
 For the years ended December 31,
 2017 2016
(All amounts after tax; in millions, except per share amounts)  
Earnings
per
Diluted
Share
   
Earnings
per
Diluted
Share
Net Income Attributable to Common Shareholders$3,770
 $3.97
 $1,134
 $1.22
Mark-to-Market Impact of Economic Hedging Activities(a) (net of taxes of $68 and $18, respectively)
107
 0.11
 24
 0.03
Unrealized Gains Related to NDT Fund Investments(b) (net of taxes of $204 and $77, respectively)
(318) (0.34) (118) (0.13)
Amortization of Commodity Contract Intangibles(c) (net of taxes of $22 and $22, respectively)
34
 0.04
 35
 0.04
Merger and Integration Costs(d) (net of taxes of $25 and $50, respectively)
40
 0.04
 114
 0.12
Merger Commitments(e) (net of taxes of $137 and $126, respectively)
(137) (0.14) 437
 0.47
Long-Lived Asset Impairments(f) (net of taxes of $204 and $68, respectively)
321
 0.34
 103
 0.11
Plant Retirements and Divestitures(g) (net of taxes of $134 and $273, respectively)
207
 0.22
 432
 0.47
Reassessment of Deferred Income Taxes(h) (entire amount represents tax expense)
(1,299) (1.37) 10
 0.01
Cost Management Program(i) (net of taxes of $21 and $21, respectively)
34
 0.04
 34
 0.04
Like-Kind Exchange Tax Position(j) (net of taxes of $66 and $61, respectively)
(26) (0.03) 199
 0.21
Asset Retirement Obligation(k) (net of taxes of $1 and $13, respectively)
(2) 
 (75) (0.08)
Tax Settlements(l) (net of taxes of $1 and $0, respectively)
(5) (0.01) 
 
Bargain Purchase Gain(m) (net of taxes of $0 and $0, respectively)
(233) (0.25) 
 
Gain on Deconsolidation of Business(n) (net of taxes of $83 and $0, respectively)
(130) (0.14) 
 
Vacation Policy Change(o) (net of taxes of $21 and $0, respectively)
(33) (0.03) 
 
Curtailment of Generation Growth and Development Activities(p) (net of taxes of $0 and $35, respectively)

 
 57
 0.06
Change in Environmental Remediation Liabilities (net of taxes of $17 and $0, respectively)27
 0.03
 
 
Noncontrolling Interests(q) (net of taxes of $24 and $9, respectively)
114
 0.12
 102
 0.11
Adjusted (non-GAAP) Operating Earnings$2,471
 $2.60
 $2,488
 $2.68
__________ 
(a)Reflects the impact of net gains and losses on Generation’s economic hedging activities. See Note 12 - Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional detail related to Generation’s hedging activities.
(b)Reflects the impact of net unrealized gains on Generation’s NDT fund investments for Non-Regulatory Agreement Units. See Note 15 - Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional detail related to Generation’s NDT fund investments.

(c)Represents the non-cash amortization of intangible assets, net, primarily related to commodity contracts recorded at fair value related to, in 2017, the ConEdison Solutions and FitzPatrick acquisitions, and in 2016, the Integrys and ConEdison Solutions acquisitions.
(d)Primarily reflects certain costs incurred for the PHI acquisition in 2017 and 2016 and Generation's FitzPatrick acquisition in 2017, including professional fees, employee-related expenses and integration activities. See Note 4 - Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for additional detail related to merger and acquisition costs.
(e)Represents costs incurred as part of the settlement orders approving the PHI acquisition, and in 2017, a decrease in reserves for uncertain tax positions related to the deductibility of certain merger commitments associated with the 2012 CEG and 2016 PHI acquisitions, and in 2016, a charge related to a 2012 CEG merger commitment. See Note 4 - Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for additional detail related to PHI Merger commitments.
(f)Primarily reflects charges to earnings in 2017 related to impairments of EGTP assets and the PHI District of Columbia sponsorship intangible asset, and in 2016, impairments of Upstream assets and certain wind projects at Generation.
(g)Primarily reflects in 2017 accelerated depreciation and amortization expenses, increases to materials and supplies inventory reserves, construction work in progress impairments and charges for severance reserves associated with Generation’s decision to early retire the Three Mile Island nuclear facility. Primarily reflects in 2016 accelerated depreciation and amortization expenses through December 2016 and construction work in progress impairments associated with Generation’s previous decision to early retire the Clinton and Quad Cities nuclear facilities, partially offset by a gain associated with Generation’s sale of the New Boston generating site.
(h)Reflects in 2017 one-time non-cash impacts associated with remeasurements of deferred income taxes as a result of the Tax Cuts and Jobs Act (including impacts on pension obligations), changes in the Illinois and District of Columbia statutory tax rates and changes in forecasted apportionment, and in 2016, the non-cash impact of the remeasurement of deferred income taxes as a result of changes in forecasted apportionment related to the PHI acquisition.
(i)Represents severance and reorganization costs related to a cost management program.
(j)Represents in 2017 adjustments to income tax, penalties and interest expenses as a result of the finalization of the IRS tax computation related to Exelon’s like-kind exchange tax position, and in 2016, the recognition of a penalty and associated interest expense as a result of a tax court decision on Exelon’s like-kind exchange tax position.
(k)Reflects a non-cash benefit pursuant to the annual update of the Generation nuclear decommissioning obligation related to the non-regulatory units.
(l)Reflects benefits related to the favorable settlement in 2017 of certain income tax positions related to PHI's unregulated business interests that were transferred to Generation.
(m)Represents the excess of the fair value of assets and liabilities acquired over the purchase price for the FitzPatrick acquisition.
(n)Represents the gain recorded upon deconsolidation of EGTP's net liabilities, which included the previously impaired assets and related debt, as a result of the November 2017 bankruptcy filing.
(o)Represents the reversal of previously accrued vacation expenses as a result of a change in Exelon's vacation vesting policy.
(p)Reflects the the one-time recognition for a loss on sale of assets and asset impairment charges pursuant to Generation’s strategic decision in the fourth quarter of 2016 to narrow the scope and scale of its growth and development activities.
(q)Represents elimination from Generation’s results of the noncontrolling interests related to certain exclusion items, primarily related to the impact of unrealized gains and losses on NDT fund investments at CENG.

Note:
Unless otherwise noted, the income tax impact of each reconciling item between GAAP Net Income and Adjusted (non-GAAP) Operating Earnings is based on the marginal statutory federal and state income tax rates for each Registrant, taking into account whether the income or expense item is taxable or deductible, respectively, in whole or in part. For all items except the unrealized gains and losses related to NDT fund investments, the marginal statutory income tax rates ranged from 39 percent to 41 percent. Under IRS regulations, NDT fund investment returns are taxed at differing rates for investments in qualified vs. non-qualified funds. The tax rates applied to unrealized gains and losses related to NDT Fund investments were 47.4 percent and 48.7 percent for the years ended December 31, 2017 and 2016, respectively.
Merger, Integration and Acquisition Costs
As a result of the PHI Merger that was completed on March 23, 2016, the Registrants have incurred costs associated with evaluating, structuring and executing the PHI Merger transaction itself, and will continue to incur cost associated with meeting the various commitments set forth by regulators and agreed-upon with other interested parties as part of the merger approval process, and integrating the former PHI businesses into Exelon. In addition, as a result of the acquisition of the FitzPatrick nuclear generating station on March 31, 2017, Exelon and Generation incurred costs associated with evaluating, structuring and executing the transaction and integrating FitzPatrick into Exelon.

additional information.
The table below presentsRegistrants could be negatively affected by the one-time pre-tax charges recognizedimpacts of weather (All Registrants).
Weather conditions directly influence the demand for electricity and natural gas and affect the PHI Merger includedprice of energy commodities. Temperatures above normal levels in the Registrant's respective Consolidated Statements of Operations and Comprehensive Income.
           Successor
 For the Year Ended December 31, 2016 March 24, 2016 to December 31, 2016
 Exelon Generation Pepco DPL ACE PHI
Merger commitments (a)
$513
 $3
 $126
 $86
 $111
 $323
Changes in accounting and tax related policies and estimates
 
 25
 15
 5
 
Total$513
 $3
 $151
 $101
 $116
 $323
__________
(a)See Note 4 — Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for more information.
In addition to the one-time PHI Merger charges discussed above, for the years ended December 31, 2017 and 2016, expense has been recognized for the PHI Merger and Generation's FitzPatrick acquisition as follows:
 Pre-tax Expense
 For the Year Ended December 31, 2017
Merger, Integration and Acquisition Expense:
Exelon(a)
 
Generation(a)
 ComEd PECO BGE 
PHI(a)
 
Pepco(a)
 
DPL(a)
 
ACE(a)
Transaction(b)
$6
 $5
 $
 $
 $
 $
 $
 $
 
Other(c)(d)
67
 75
 1
 4
 4
 (18) (6) (7) (6)
Total$73
 $80
 $1
 $4
 $4
 $(18) $(6) $(7) $(6)
 Pre-tax Expense
 For the Year Ended December 31, 2016
Merger Integration and Acquisition Expense:
Exelon(a)
 
Generation(a)
 ComEd PECO BGE 
PHI(a)
 
Pepco(a)
 
DPL(a)
 
ACE(a)
Transaction(b)
$34
 $2
 $
 $
 $
 $
 $
 $
 $
Employee-related(e)
77
 10
 2
 1
 1
 64
 30
 18
 15
Other(c)(d)
52
 44
 (8) 4
 (2) 5
 (2) 2
 4
Total$163
 $56
 $(6) $5
 $(1) $69
 $28
 $20
 $19
__________
(a)For Exelon, Generation, PHI, Pepco, DPL and ACE, includes the operations of the acquired businesses beginning on March 24, 2016.
(b)External, third party costs paid to advisors, consultants, lawyers and other experts to assist in the due diligence and regulatory approval processes and in the closing of transactions.
(c)Costs to integrate PHI processes and systems into Exelon. For the year ended December 31, 2017, also includes costs to integrate FitzPatrick processes and systems into Exelon.
(d)
For the year ended December 31, 2017, includes deferrals of previously incurred integration costs to achieve distribution synergies related to the PHI acquisition of $24 million, $8 million, $8 million, and $8 million incurred at PHI, Pepco, DPL, and ACE, respectively, that have been recorded as a regulatory asset for anticipated recovery. For the year ended December 31, 2016, includes deferrals of previously incurred integration costs to achieve distribution synergies related to the PHI acquisition of $8 million, $6 million, $11 million, and $4 million incurred at ComEd, BGE, Pepco, and DPL, respectively, that have been recorded as a regulatory asset for anticipated recovery. For the Successor period March 24, 2016 to December 31, 2016, includes deferrals of previously incurred integration costs to achieve distribution synergies related to the PHI acquisition of $16 million incurred at PHI that have been recorded as a regulatory asset for anticipated recovery. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for more information.
(e)Costs primarily for employee severance, pension and OPEB expense and retention bonuses.

Significant 2017 Transactions and Recent Developments
Corporate Tax Reform
On December 22, 2017, President Trump signed the TCJA into law. The TCJA makes many significant changes to the Internal Revenue Code, including, but not limited to, (1) reducing the U.S. federal corporate tax rate from 35% to 21%; (2) creating a 30% limitation on deductible interest expense (not applicable to regulated utilities); (3) allowing 100% expensing for the cost of qualified property (not applicable to regulated utilities); (4) eliminating the domestic production activities deduction; (5) eliminating the corporate alternative minimum tax and changing how existing alternative minimum tax credits can be realized; and (6) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017.
The most significant change that impacts the Registrants is the reduction of the corporate federal income tax rate from 35% to 21% beginning January 1, 2018. Adjusted non-GAAP operating earnings per share for Exelon is expectedsummer tend to increase summer cooling electricity demand and revenues, and temperatures below normal levels in the winter tend to increase winter heating electricity and gas demand and revenues. Moderate temperatures adversely affect the usage of energy and resulting operating revenues at PECO and DPL Delaware. Due to revenue decoupling, operating revenues from electric distribution at ComEd, BGE, Pepco, DPL Maryland, and ACE are not affected by approximately $0.10abnormal weather.
Extreme weather conditions or damage resulting from storms could stress the Utility Registrants' transmission and distribution systems, communication systems, and technology, resulting in increased maintenance and capital costs and limiting each company’s ability to meet peak customer demand. First and third quarter financial results, in particular, are substantially dependent on a run-rate basisweather conditions, and could make period comparisons less relevant.
Climate change projections suggest increases to summer temperature and humidity trends, as well as more erratic precipitation and storm patterns over the long-term in 2019 relative to Exelon’s projections before the TCJA.  Forareas where the Utility Registrants have transmission and distribution assets. The frequency in which weather conditions emerge outside the amountcurrent expected climate norms could contribute to weather-related impacts discussed above.
Long-lived assets, goodwill, and timingother assets could become impaired (All Registrants).
Long-lived assets represent the single largest asset class on the Registrants’ statements of when certain income tax benefits resulting fromfinancial position. In addition, Exelon, ComEd, and PHI have material goodwill balances.
The Registrants evaluate the TCJA are provided to customers may vary from jurisdiction to jurisdiction.
Beginning in 2018, Generation will incur lower income tax expense, which will decrease its projected effective income tax rate, even with the eliminationrecoverability of the domestic production activities deduction, and increase its net income. Generation’s operating cash inflows are also expected to increase beginning in 2018 reflecting the lower income tax rates and full expensingcarrying value of capital investments. Generation’s projected effective income tax rate in 2018, 2019, and 2020 is expectedlong-lived assets to be approximately 22%.
Beginning in 2018, the Utility Registrants will incur lower income tax expense, which will generally decrease their projected effective income tax rates. The TCJA is expected to lead to lower customer rates over time due to lower income tax expense recoveriesheld and the settlement of deferred income tax net regulatory liabilities. The TCJA is expected to lead to an incremental increase in rate base of approximately $1.7 billion by 2020 relative to previous expectations across the Utility Registrants. The increased rate base will be funded consistent with each utility jurisdiction, usingused whenever events or circumstances indicating a combination of third party debt financings and equity funding from Exelon generally consistent with existing capitalization ratio structures. To fund any additional equity contributions to the Utility Registrants, Exelon would have available to it its typical sources, including,potential impairment exist. Factors such as, but not limited to, the increasedbusiness climate, including current and future energy and market conditions, environmental regulation, and the condition of assets are considered.
ComEd and PHI perform an assessment for possible impairment of their goodwill at least annually or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the
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reporting units below their carrying amount. Regulatory actions or changes in significant assumptions, including discount and growth rates, utility sector market performance and transactions, projected operating and capital cash flows at Generation referenced above, which over time are expected to exceedfor ComEd’s, Pepco’s, DPL’s, and ACE’s business, and the incremental equity needs at the Utility Registrants. The TCJA is generally expected tofair value of debt, could potentially result in lower operating cash inflowsfuture impairments of Exelon’s, ComEd's, and PHI’s goodwill.
An impairment would require the Registrants to reduce the carrying value of the long-lived asset or goodwill to fair value through a non-cash charge to expense by the amount of the impairment. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Critical Accounting Policies and Estimates, Note 7 — Property, Plant, and Equipment, Note 11 — Asset Impairments, and Note 12 — Intangible Assets of the Combined Notes to the Consolidated Financial Statements for additional information on long-lived asset impairments and goodwill impairments.
The Registrants could incur substantial costs in the event of non-performance by third-parties under indemnification agreements, or when the Registrants have guaranteed their performance (All Registrants).
The Registrants have entered into various agreements with counterparties that require those counterparties to reimburse a Registrant and hold it harmless against specified obligations and claims. To the extent that any of these counterparties are affected by deterioration in their creditworthiness or the agreements are otherwise determined to be unenforceable, the affected Registrant could be held responsible for the obligations. Each of the Utility Registrants has transferred its former generation business to a third party and in each case the transferee has agreed to assume certain obligations and to indemnify the applicable Utility Registrant for such obligations. In connection with the restructurings under which ComEd, PECO, and BGE transferred their generating assets to Constellation, Constellation assumed certain of ComEd’s, PECO’s, and BGE's rights and obligations with respect to their former generation businesses. Further, ComEd, PECO, and BGE have entered into agreements with third parties under which the third-party agreed to indemnify ComEd, PECO, or BGE for certain obligations related to their respective former generation businesses that have been assumed by Constellation as a resultpart of the eliminationrestructuring. If the third-party, Constellation, or the transferee of bonus depreciationPepco's, DPL's, or ACE’s generation facilities experienced events that reduced its creditworthiness or the indemnity arrangement became unenforceable, the applicable Utility Registrant could be liable for any existing or future claims. In addition, the Utility Registrants have residual liability under certain laws in connection with their former generation facilities.
The Registrants have issued indemnities to third parties regarding environmental or other matters in connection with purchases and lower customer rates.sales of assets, including several of the Utility Registrants in connection with Constellation's absorption of their former generating assets. The Registrants could incur substantial costs to fulfill their obligations under these indemnities.
Exelon Corporate expectsThe Registrants have issued guarantees of the performance of third parties, which obligate the Registrants to perform if the third parties do not perform. In the event of non-performance by those third parties, the Registrants could incur substantial cost to fulfill their obligations under these guarantees.
Risks Related to Legislative, Regulatory, and Legal Factors
The Registrants' businesses are highly regulated and electric and gas revenue and earnings could be negatively affected by legislative and/or regulatory actions (All Registrants).
Substantial aspects of the Registrants' businesses are subject to comprehensive Federal or state legislation and/or regulation.
The Utility Registrants' consolidated financial statements are heavily dependent on the ability of the Utility Registrants to recover their costs for the retail purchase, transmission, and distribution of power and natural gas to their customers.
Fundamental changes in regulations or adverse legislative actions affecting the Registrants’ businesses would require changes in their business planning models and operations. The Registrants cannot predict when or whether legislative or regulatory proposals could become law or what their effect would be on the Registrants.
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Changes in the Utility Registrants' respective terms and conditions of service, including their respective rates, along with adoption of new rate structures and constructs, or establishment of new rate cases, are subject to regulatory approval proceedings and/or negotiated settlements that are at times contentious, lengthy, and subject to appeal, which lead to uncertainty as to the interest on its debt will continue to be fully tax deductible albeit at a lower tax rate.ultimate result, and which could introduce time delays in effectuating rate changes (All Registrants).
The Utility Registrants continueare required to workengage in regulatory approval proceedings as a part of the process of establishing the terms and rates for their respective services, adoption of new rate structures and constructs or establishment of new rate cases. These proceedings typically involve multiple parties, including governmental bodies and officials, consumer advocacy groups, and various consumers of energy, who have differing concerns but who have the common objective of limiting rate increases or even reducing rates. Decisions are subject to appeal, potentially leading to additional uncertainty associated with theirthe approval proceedings. The potential duration of such proceedings creates a risk that rates ultimately approved by the applicable regulatory body may not be sufficient for a Utility Registrant to recover its costs by the time the rates become effective. Established rates are also subject to subsequent prudency reviews by state regulators, whereby various portions of rates could be adjusted, subject to refund or disallowed, including recovery mechanisms for costs associated with the procurement of electricity or gas, credit losses, MGP remediation, smart grid infrastructure, and energy efficiency and demand response programs. In certain instances, the Utility Registrants could agree to negotiated settlements related to various rate matters, customer initiatives, or franchise agreements. These settlements are subject to regulatory commissions to determine the amountapproval. The ultimate outcome and timing of regulatory rate proceedings have a significant effect on the passing back of TCJA income tax savings benefits to customers; with filings either made, or expected to be made, at Pepco, DPL and ACE, and approved filings at ComEd and BGE. The amounts being passed back or proposed to be passed back to customers reflect the benefit of lower income tax expense beginning January 1, 2018 (Feb. 1, 2018 for DPL Delaware), and the settlement of a portion of deferred income tax regulatory liabilities established upon enactmentability of the TCJA. To date, neither the PAPUC nor FERC has yet issued guidance on how and whenUtility Registrants to reflect the impacts of the TCJA in customer rates. Refer torecover their costs or earn an adequate return. See Note 3Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information.
The Registrants could be subject to higher costs and/or penalties related to mandatory reliability standards, including the likely exposure of the Utility Registrants to the results of PJM’s RTEP and NERC compliance requirements (All Registrants).
The Utility Registrants as users, owners, and operators of the bulk power transmission system are subject to mandatory reliability standards promulgated by NERC and enforced by FERC. The standards are based on the functions that need to be performed to ensure the bulk power system operates reliably and are guided by reliability and market interface principles. Compliance with or changes in the reliability standards could subject the Registrants to higher operating costs and/or increased capital expenditures. In addition, the ICC, PAPUC, MDPSC, DCPSC, DEPSC, and NJBPU impose certain distribution reliability standards on the Utility Registrants. If the Utility Registrants were found in non-compliance with the Federal and state mandatory reliability standards, they could be subject to remediation costs as well as sanctions, which could include substantial monetary penalties.
The Registrants could incur substantial costs to fulfill their obligations related to environmental and other matters (All Registrants).
The Registrants are subject to extensive environmental regulation and legislation by local, state, and Federal authorities. These laws and regulations affect the way the Registrants conduct their operations and make capital expenditures including how they handle air and water emissions, hazardous and solid waste, and activities affecting surface waters, groundwater, and aquatic and other species. Violations of these requirements could subject the Registrants to enforcement actions, capital expenditures to bring existing facilities into compliance, additional operating costs for remediation and clean-up costs, civil penalties and exposure to third parties’ claims for alleged health or property damages, or operating restrictions to achieve compliance. In addition, the Registrants are subject to liability under these laws for the remediation costs for environmental contamination of property now or formerly owned by the Registrants and of property contaminated by hazardous substances they generated or released. Remediation activities associated with MGP operations conducted by predecessor companies are one component of such costs. Also, the Registrants are currently involved in several proceedings relating to sites where hazardous substances have been deposited and could be subject to additional proceedings in the future. See ITEM 1. BUSINESS — Environmental Matters and Regulation for additional information.
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The Registrants could be negatively affected by federal and state RPS and/or energy conservation legislation, along with energy conservation by customers (All Registrants).
Changes to current state legislation or the development of Federal legislation that requires the use of clean, renewable, and alternate fuel sources could significantly impact the Utility Registrants, especially if timely cost recovery is not allowed.
Federal and state legislation mandating the implementation of energy conservation programs that require the implementation of new technologies, such as smart meters and smart grid, could increase capital expenditures and could significantly impact the Utility Registrants consolidated financial statements if timely cost recovery is not allowed. These energy conservation programs, regulated energy consumption reduction targets, and new energy consumption technologies could cause declines in customer energy consumption and lead to a decline in the Registrants' earnings, if timely recovery is not allowed. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Renewable and Clean Energy Standards and "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
The Registrants could be negatively affected by challenges to tax positions taken, tax law changes, and the inherent difficulty in quantifying potential tax effects of business decisions. (All Registrants).
The Registrants are required to make judgments to estimate their obligations to taxing authorities, which includes general tax positions taken and associated reserves established. Tax obligations include, but are not limited to: income, real estate, sales and use, and employment-related taxes and ongoing appeal issues related to these tax matters. All tax estimates could be subject to challenge by the tax authorities. Additionally, earnings may be impacted due to changes in federal or local/state tax laws, and the inherent difficulty of estimating potential tax effects of ongoing business decisions. See Note 1Significant Accounting Policies and Note 13Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Legal proceedings could result in a negative outcome, which the Registrants cannot predict (All Registrants).
The Registrants are involved in legal proceedings, claims, and litigation arising out of their business operations. The material ones are summarized in Note 18Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Adverse outcomes in these proceedings could require significant expenditures, result in lost revenue, or restrict, or disrupt business activities.
The Registrants could be subject to adverse publicity and reputational risks, which make them vulnerable to negative customer perception and could lead to increased regulatory oversight or other consequences (All Registrants).
The Registrants could be the subject of public criticism. Adverse publicity of this nature could render public service commissions and other regulatory and legislative authorities less likely to view energy companies in a favorable light, and could cause those companies, including the Registrants, to be susceptible to less favorable legislative and regulatory outcomes, as well as increased regulatory oversight and more stringent legislative or regulatory requirements.
Exelon and ComEd have received requests for information related to an SEC investigation into their lobbying activities. The outcome of the investigations could have a material adverse effect on their filings.

Early Nuclear Plant Retirementsreputation and consolidated financial statements (Exelon and ComEd).
On May 30, 2017, Generation announcedOctober 22, 2019, the SEC notified Exelon and ComEd that it will permanently cease generation operations at Three Mile Island Generating Station (TMI) on or about September 30, 2019. The TMI nuclear plant did not clearhad opened an investigation into their lobbying activities in the May 2017 PJM capacity auctionstate of Illinois. Exelon and ComEd have cooperated fully, including by providing all information requested by the SEC, and intend to continue to cooperate fully and expeditiously with the SEC. The outcome of the SEC’s investigation cannot be predicted and could subject Exelon and ComEd to civil penalties, sanctions, or other remedial measures. Any of the foregoing, as well as the appearance of non-compliance with anti-corruption and anti-bribery laws, could have an adverse impact on Exelon’s and ComEd’s reputations or relationships with regulatory and legislative authorities, customers, and other stakeholders, as well as their consolidated financial
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statements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
If ComEd violates its Deferred Prosecution Agreement announced on July 17, 2020, it could have an adverse effect on the reputation and consolidated financial statements of Exelon and ComEd (Exelon and ComEd).
On July 17, 2020, ComEd entered into a Deferred Prosecution Agreement (DPA) with the U.S. Attorney’s Office for the 2020-2021 planning yearNorthern District of Illinois (USAO) to resolve the USAO’s investigation into Exelon’s and ComEd’s lobbying activities in the State of Illinois. Exelon was not made a party to the DPA and the investigation by the USAO into Exelon’s activities ended with no charges being brought against Exelon. Under the DPA, the USAO filed a single charge alleging that ComEd improperly gave and offered to give jobs, vendor subcontracts, and payments associated with those jobs and subcontracts for the benefit of the Speaker of the Illinois House of Representatives and the Speaker’s associates, with the intent to influence the Speaker’s action regarding legislation affecting ComEd’s interests. The DPA provides that the USAO will defer any prosecution of such charge and any other criminal or civil case against ComEd in connection with the matters identified therein for a three-year period subject to certain obligations of ComEd, including, but not limited to, the following: (i) payment to the U.S. Treasury of $200 million; (ii) continued full cooperation with the government’s investigation; and (iii) ComEd’s adoption and maintenance of remedial measures involving compliance and reporting undertakings as specified in the DPA. If ComEd is found to have breached the terms of the DPA, the USAO may elect to prosecute, or bring a civil action against, ComEd for conduct alleged in the DPA or known to the government, which could result in fines or penalties and could have an adverse impact on Exelon’s and ComEd’s reputation or relationships with regulatory and legislative authorities, customers and other stakeholders, as well as their consolidated financial statements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
Risks Related to Operational Factors
The Registrants are subject to risks associated with climate change (All Registrants).
The Registrants periodically perform analyses to better understand long-term projections of climate change and how those changes in the physical environments where they operate could affect their facilities and operations. The Registrants primarily operate in the Midwest and Mid-Atlantic of the United States, areas that historically have been prone to various types of severe weather events, and as such the Registrants have well-developed response and recovery programs based on these historical events. However, the Registrants’ physical facilities could be at greater risk of damage as changes in the global climate affect temperature and weather patterns, or be placed at greater risk of damage should climate changes result in more intense, frequent and extreme weather events, elevated levels of precipitation, sea level rise, increased surface water temperatures, and/or other effects. Over time, the Registrants are making additional investments to protect their facilities from physical climate-related risks.
In addition, changes to the climate may impact levels and patterns of demand for energy and related services, which could affect Registrants’ operations. Over time, the Registrants are making additional investments to adapt to changes in operational requirements to manage demand changes and customer expectations caused by climate change.
Climate Change risks include changes to the energy systems due to new technologies, changing customer expectations and/or voluntary GHG goals, as well as local, state, or federal regulatory requirements intended to reduce GHG emissions. The Registrants also periodically perform analyses of potential energy system transition pathways to reduce economy-wide GHG emissions to mitigate climate change. To the extent additional GHG reduction legislation and/or regulation becomes effective at the Federal and/or state levels, the Registrants could incur costs to further limit the GHG emissions from their operations or otherwise comply with applicable requirements. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Climate Change and ITEM 1.A. "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
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The Utility Registrants' operating costs are affected by their ability to maintain the availability and reliability of their delivery and operational systems (All Registrants).
Failures of the equipment or facilities used in the Utility Registrants' delivery systems could interrupt the electric transmission and electric and natural gas delivery, which could result in a loss of revenues and an increase in maintenance and capital expenditures. Equipment or facilities failures can be due to several factors, including natural causes such as weather or information systems failure. Specifically, if the implementation of AMI, smart grid, or other technologies in the Utility Registrants' service territory fail to perform as intended or are not successfully integrated with billing and other information systems, or if any of the financial, accounting, or other data processing systems fail or have other significant shortcomings, the Utility Registrants' financial results could be negatively impacted. In addition, dependence upon automated systems could further increase the risk that operational system flaws or internal and/or external tampering or manipulation of those systems will result in losses that are difficult to detect.
Regulated utilities, which are required to provide service to all customers within their service territory, have generally been afforded liability protections against claims by customers relating to failure of service. Under Illinois law, however, ComEd could be required to pay damages to its customers in some circumstances involving extended outages affecting large numbers of its customers, which could be material.
The Registrants are subject to physical security and cybersecurity risks (All Registrants).
The Registrants face physical security and cybersecurity risks. Threat sources, including sophisticated nation-state actors, continue to seek to exploit potential vulnerabilities in the electric and natural gas utility industry, grid infrastructure, and other energy infrastructures, and these attacks and disruptions, both physical and cyber, are becoming increasingly sophisticated and dynamic. Continued implementation of advanced digital technologies increases the potentially unfavorable impacts of such attacks. Additionally, the U.S. government has warned that the Ukraine conflict may increase the risks of attacks targeting critical infrastructure in the United States.
A security breach of the Registrants' physical assets or information systems or those of the Registrants competitors, vendors, business partners and interconnected entities in RTOs and ISOs, or regulators could materially impact Registrants by, among other things, impairing the availability of electricity and gas distributed by Registrants and/or the reliability of transmission and distribution systems, impairing the availability of vendor services and materials that the Registrants rely on to maintain their operations, or by leading to the theft or inappropriate release of certain types of information, including critical infrastructure information, sensitive customer, vendor, or employee data, or other confidential data. The risk of these events and security breaches occurring continues to intensify, and while the Registrants have been, and will likely continue to be, subjected to physical and cyber-attacks, to date none have directly experienced a material breach or material disruption to its network or information systems or our operations. However, as such attacks continue to increase in sophistication and frequency, the Registrants may be unable to prevent all such attacks in the future.
If a significant security breach were to occur, the Registrants' reputation could be negatively affected, customer confidence in the Registrants or others in the industry could be diminished, or the Registrants could be subject to legal claims, loss of revenues, increased costs, or operations shutdown. Moreover, the amount and scope of insurance maintained against losses resulting from any such security breaches may not receive capacity revenuebe sufficient to cover losses or otherwise adequately compensate for any disruptions to business that period,could result.
The Utility Registrants' deployment of smart meters throughout their service territories could increase the risk of damage from an intentional disruption of the system by third consecutive yearparties.
In addition, new or updated security regulations or unforeseen threat sources could require changes in current measures taken by the Registrants or their business operations and could adversely affect their consolidated financial statements.
The Registrants’ employees, contractors, customers, and the general public could be exposed to a risk of injury due to the nature of the energy industry (All Registrants).
Employees and contractors throughout the organization work in, and customers and the general public could be exposed to, potentially dangerous environments near the Registrants’ operations. As a result, employees,
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contractors, customers, and the general public are at some risk for serious injury, including loss of life. These risks include gas explosions, pole strikes, and electric contact cases.
Natural disasters, war, acts and threats of terrorism, pandemic, and other significant events could negatively impact the Registrants' results of operations, ability to raise capital and future growth (All Registrants).
The Utility Registrants' distribution and transmission infrastructures could be affected by natural disasters and extreme weather events, which could result in increased costs, including supply chain costs. An extreme weather event within the Utility Registrants’ service areas can also directly affect their capital assets, causing disruption in service to customers due to downed wires and poles or damage to other operating equipment.
The impact that TMI failedpotential terrorist attacks could have on the industry and the Registrants is uncertain. The Registrants face a risk that their operations would be direct targets or indirect casualties of an act of terror. Any retaliatory military strikes or sustained military campaign could affect their operations in unpredictable ways, such as changes in insurance markets and disruptions of fuel supplies and markets, particularly oil. Furthermore, these catastrophic events could compromise the physical or cybersecurity of the Registrants' facilities, which could adversely affect the Registrants' ability to clearmanage their businesses effectively. Instability in the PJM base residual capacity auction. The plant is currently committed to operate through May 2019. In 2017,financial markets as a result of terrorism, war, natural disasters, pandemic, credit crises, recession, or other factors also could result in a decline in energy consumption or interruption of fuel or the plant retirement decisionsupply chain. In addition, the implementation of TMI,security guidelines and measures has resulted in and is expected to continue to result in increased costs.
The Registrants could be significantly affected by the outbreak of a pandemic. Exelon has plans in place to respond to a pandemic. However, depending on the severity of a pandemic and the resulting impacts to workforce and other resource availability, the ability to operate Exelon's transmission and distribution assets could be adversely affected.
In addition, Exelon maintains a level of insurance coverage consistent with industry practices against property, casualty, and cybersecurity losses subject to unforeseen occurrences or catastrophic events that could damage or destroy assets or interrupt operations. However, there can be no assurance that the amount of insurance will be adequate to address such property and casualty losses.
The Registrants’ businesses are capital intensive, and their assets could require significant expenditures to maintain and are subject to operational failure or be impacted by lack of availability of critical parts, which could result in potential liability (All Registrants).
The Utility Registrants’ businesses are capital intensive and require significant investments in transmission and distribution infrastructure projects. Equipment, even if maintained in accordance with good utility practices, is subject to operational failure, including events that are beyond the Utility Registrants’ control, and could require significant expenditures to operate efficiently. Additionally, if critical parts are not available, it may impact the timing of execution of capital projects. The Registrants' consolidated financial statements could be negatively affected if they were unable to effectively manage their capital projects or raise the necessary capital, or if they are deemed liable for operational failure. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources for additional information regarding the Registrants’ potential future capital expenditures.
The Utility Registrants' respective ability to deliver electricity, their operating costs, and their capital expenditures could be negatively impacted by transmission congestion and failures of neighboring transmission systems (All Registrants).
Demand for electricity within the Utility Registrants' service areas could stress available transmission capacity requiring alternative routing or curtailment of electricity usage. Also, insufficient availability of electric supply to meet customer demand could jeopardize the Utility Registrants' ability to comply with reliability standards and strain customer and regulatory agency relationships. As with all utilities, potential concerns over transmission capacity or generation facility retirements could result in PJM or FERC requiring the Utility Registrants to upgrade or expand their respective transmission systems through additional capital expenditures.
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PJM’s systems and operations are designed to ensure the reliable operation of the transmission grid and prevent the operations of one utility from having an adverse impact on the operations of the other utilities. However, service interruptions at other utilities may cause interruptions in the Utility Registrants’ service areas.
The Registrants' performance could be negatively affected if they fail to attract and retain an appropriately qualified workforce (All Registrants).
Certain events, such as the separation transaction, an employee strike, loss of employees, loss of contract resources due to a major event, and an aging workforce without appropriate replacements, could lead to operating challenges and increased costs for the Registrants. The challenges include lack of resources, loss of knowledge and a lengthy time period associated with skill development. In this case, costs, including costs for contractors to replace employees, productivity costs, and safety costs, could arise. The Registrants are particularly affected due to the specialized knowledge required of the technical and support employees for their transmission and distribution operations as well as areas where new technologies are pertinent.
The Registrants’ performance could be negatively affected by poor performance of third-party contractors that perform periodic or ongoing work (All Registrants).
All Registrants rely on third-party contractors to perform operations, maintenance, and construction work. Performance standards typically are included in all contractual obligations, but poor performance may impact the capital execution plan or operations, or have adverse financial or reputational consequences.
The Registrants could make acquisitions or investments in new business initiatives and new markets, which may not be successful or achieve the intended financial results (All Registrants).
The Utility Registrants face risks associated with their regulatory-mandated initiatives, such as smart grids and and broader beneficial electrification. These risks include, but are not limited to, cost recovery, regulatory concerns, cybersecurity, and obsolescence of technology. Such initiatives may not be successful.
Risks Related to the Separation (Exelon)
The separation may not achieve some or all of the benefits anticipated by Exelon and, Generation recognized one-time chargesfollowing the separation, Exelon's common stock price may underperform relative to Exelon's expectations.
By separating the Utility Registrants and Constellation, Exelon created two publicly traded companies with the resources necessary to best serve customers and sustain long-term investment and operating excellence. The separate companies are expected to create value by having the strategic flexibility to focus on their unique customer, market and community priorities. However, the separation may not provide such results on the scope or scale that Exelon anticipates, and Exelon may not realize the anticipated benefits of the separation. Failure to do so could have a material adverse effect on Exelon's financial statements and its common stock price.
In connection with the separation into two public companies, Exelon and Constellation will indemnify each other for certain liabilities. If Exelon is required to pay under these indemnities to Constellation, Exelon's financial results could be negatively impacted. The Constellation indemnities may not be sufficient to hold Exelon harmless from the full amount of liabilities for which Constellation will be allocated responsibility, and Constellation may not be able to satisfy its indemnification obligations in Operatingthe future.
Pursuant to the separation agreement and maintenance expensecertain other agreements between Exelon and Constellation, each party will agree to indemnify the other for certain liabilities, in each case for uncapped amounts. Indemnities that Exelon may be required to provide Constellation are not subject to any cap, may be significant and could negatively impact its business. Third parties could also seek to hold Exelon responsible for any of $77 million relatedthe liabilities that Constellation has agreed to materials and supplies inventory reserve adjustments, employee-related costs and construction work-in-progress (CWIP) impairments, among other items. In additionretain. Any amounts Exelon is required to pay pursuant to these one-time charges, there willindemnification obligations and other liabilities could require Exelon to divert cash that would otherwise have been used in furtherance of its operating business. Further, the indemnities from Constellation for Exelon's benefit may not be ongoing annual incremental non-cash charges to earnings stemming from shortening the expected economic useful life of TMI primarily related to accelerated depreciation of plant assets (including any asset retirement costs (ARC)), accelerated amortization of nuclear fuel, and additional asset retirement obligation (ARO) accretion expense associated with the changes in decommissioning timing and cost assumptions. During the year ended December 31, 2017, both Exelon’s and Generation’s results include an incremental $262 million of pre-tax expense for these items.
The following table summarizes the estimated annual amount and timing of expected incremental non-cash expense items through 2019.
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Table of Contents
  Actual 
Projected(a)
Income statement expense (pre-tax) 2017 2018 2019
Depreciation and Amortization      
         Accelerated depreciation(b)
 $250
 $440
 $330
         Accelerated nuclear fuel amortization 12
 20
 5
Total $262
 $460
 $335
sufficient to protect Exelon against the full amount of such liabilities, and Constellation may not be able to fully satisfy its indemnification obligations.
_________Moreover, even if Exelon ultimately succeeds in recovering from Constellation any amounts for which Exelon is held liable, Exelon may be temporarily required to bear these losses. Each of these risks could negatively affect Exelon's business, results of operations and financial condition.
(a)Actual results may differ based on incremental future capital additions, actual units of production for nuclear fuel amortization, future revised ARO assumptions, etc.
(b)Reflects incremental accelerated depreciation of plant assets, including any ARC.
On February 2, 2018, Exelon announced that Generation will permanently cease generation operations at Oyster Creek at the end of its current operating cycle in October 2018. In 2010, Generation announced that Oyster Creek would retire by the end of 2019 as part of an agreement with the State of New Jersey to avoid significant costs associated with the construction of cooling towers to meet the State’s then new environmental regulations. Since then, like other nuclear sites, Oyster Creek has continued to face rising operating costs amid a historically low wholesale power price environment. The decision to retire Oyster Creek in 2018 at the end of its current operating cycle involved consideration of several factors, including economic and operating efficiencies, and avoids a refueling outage scheduled for the fall of 2018 that would have required advanced purchasing of fuel fabrication and materials beginning in late February 2018.
Because of the decision to retire Oyster Creek in 2018, Exelon and Generation will recognize certain one-time charges in the first quarter of 2018 ranging from an estimated $25 million to $35 million (pre-tax) related to a materials and supplies inventory reserve adjustment, employee-related costs, and construction work-in-progress impairment, among other items. Estimated cash expenditures related to the one-time charges primarily for employee-related costs are expected to range from $5 million to $10 million.

In addition to these one-time charges, there will be financial impacts stemming from shortening the expected economic useful life of Oyster Creek primarily related to accelerated depreciation of plant assets (including any ARC), accelerated amortization of nuclear fuel, and additional ARO accretion expense associated with the changes in decommissioning timing and cost assumptions to reflect an earlier retirement date. The following table summarizes the estimated amount of expected incremental non-cash expense items expected to be incurred in 2018 because of the early retirement decision.
ITEM 1B.
Projected(b)
Income statement expense (pre-tax)2018
Depreciation and Amortization
Accelerated depreciation(a)
$110 to $140
Accelerated nuclear fuel amortization$40
Operating and Maintenance
Increased ARO accretionUp to $5UNRESOLVED STAFF COMMENTS
__________All Registrants
None.
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(a)ITEM 2.Includes the accelerated depreciation of plant assets including any ARC.PROPERTIES
(b)Actual results may differ based on incremental future capital additions, actual units of production for nuclear fuel amortization, future revised ARO assumptions, etc.
EGTP Consent Agreement
The Utility Registrants
The Utility Registrants' electric substations and Bankruptcy
On May 2, 2017, EGTP, an indirect subsidiarya portion of Exelontheir transmission rights are located on property that they own. A significant portion of their electric transmission and Generation, entered into a consent agreement with its lendersdistribution facilities are located above or underneath highways, streets, other public places, or property that others own. The Utility Registrants believe that they have satisfactory rights to permit EGTP to draw on its revolving credit facility and initiate an orderly sales process to sell the assets of its wholly owned subsidiaries. As a result, Exelon and Generation classified certain EGTP assets and liabilities as held for sale at their respective fair values less costs to sell and recorded a $460 million pre-tax impairment loss during 2017. On November 7, 2017, EGTP and all of its wholly owned subsidiaries filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Codeuse those places or property in the United States Bankruptcy Court forform of permits, grants, easements, licenses, and franchise rights; however, they have not necessarily undertaken to examine the District of Delaware. As a result, Exelonunderlying title to the land upon which the rights rest.
Transmission and Generation deconsolidated EGTP's assetsDistribution
The Utility Registrants’ high voltage electric transmission lines owned and liabilities from their consolidated financial statementsin service at December 31, 2022 were as follows:
VoltageCircuit Miles
(Volts)ComEdPECOBGEPepcoDPLACE
765,00090
500,000(a)
18821610915
345,0002,678
230,000550352770472272
138,0002,2571355561586214
115,00070025
69,000177567662
___________
(a)    In addition, PECO, DPL, and recorded a $213 million pre-tax gain.ACE have an ownership interest located in Delaware and New Jersey. See Note 48Mergers, Acquisitions and Dispositions, Note 7 — Impairment of Long-Lived Assets and Intangibles and Note 13 — Debt and Credit AgreementsJointly Owned Electric Utility Plant of the Combined Notes to the Consolidated Financial Statements for additional information regarding EGTP and the associated nonrecourse debt.information.
Acquisition of James A. FitzPatrick Nuclear Generating Station
On March 31, 2017, Generation acquired the 842 MW single-unit James A. FitzPatrick (FitzPatrick) nuclear generating station for a total purchase price of $289 million. In accounting for the acquisition as a business combination, Exelon and Generation recorded an after-tax bargain purchase gain of $233 million which is included within Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. See Note 4Mergers, Acquisitions and Dispositions of the Combined Notes to the Consolidated Financial Statements for additional information regarding the Generation's acquisition of FitzPatrick and related costs.
Illinois Future Energy Jobs Act
On December 7, 2016, FEJA was signed into law by the Governor of Illinois. FEJA was effective on June 1, 2017, and includes, among other provisions, (1) a Zero Emission Standard (ZES) providing compensation for certain nuclear-powered generating facilities, (2) an extension of and certain adjustments to ComEd’sThe Utility Registrants' electric distribution formula rate, (3) new cumulative persisting annual energy efficiency MWh savings goalssystem includes the following number of circuit miles of overhead and underground lines:
Circuit MilesComEdPECOBGEPepcoDPLACE
Overhead35,38712,9659,1554,1306,0077,345
Underground32,6849,59017,9277,2076,5133,007
Gas
The following table presents PECO’s, BGE’s, and DPL’s natural gas pipeline miles at December 31, 2022:
PECOBGEDPL
Transmission(a)
91528
Distribution6,9907,5272,198
Service piping6,4796,7611,486
Total13,47814,4403,692
___________
(a)    DPL has a 10% undivided interest in approximately 8 miles of natural gas transmission mains located in Delaware, which are used by DPL for ComEd, (4) revisions to the Illinois RPS requirements, (5) provisionsits natural gas operations and by 90% owner for adjustments to or terminationdistribution of FEJA programs if the average impact on ComEd’s customer rates

exceeds specified limits, (6) revisions to the existing net metering statute and (7) support for low income rooftop and community solar programs. FEJA establishes new or adjusts existing rate recovery mechanisms for ComEd to recover costs associated with the new or expanded energy efficiency and RPS requirements. Regulatory or legal challenges over the validity of FEJA are possible. See Note 3— Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information regarding FEJA. See Note 8 — Early Nuclear Plant Retirements of the Combined Notes to the Consolidated Financial Statements for additional information regarding the economic challenges facing Generation's Clinton and Quad Cities nuclear plants and the expected benefits of the ZES.
Illinois ZEC Procurement
On January 25, 2018, the ICC announced that Generation’s Clinton Unit 1, Quad Cities Unit 1 and Quad Cities Unit 2 nuclear plants were selected as the winning bidders through the IPA's ZEC procurement event. Generation executed the ZEC procurement contracts with Illinois utilities, including ComEd, effective January 26, 2018 and will begin recognizing revenue. Winning bidders will be entitled to compensation for the sale of ZECs retroactive to the June 1, 2017 effective date of FEJA. In the first quarter of 2018, Generation will recognize approximately $150 million of revenue and ComEd will record an obligation to Generation and corresponding reductionnatural gas to its regulatory liabilityelectric generating facilities.

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DismissalThe following table presents PECO’s, BGE’s, and DPL’s natural gas facilities:
RegistrantFacilityLocationStorage Capacity
(mmcf)
Send-out or Peaking Capacity
(mmcf/day)
PECOLNG FacilityWest Conshohocken, PA1,200160
PECOPropane Air PlantChester, PA10525
BGELNG FacilityBaltimore, MD1,056332
BGEPropane Air PlantBaltimore, MD55085
DPLLNG FacilityWilmington, DE25025
PECO, BGE, and DPL also own 30, 30, and 10 natural gas city gate stations and direct pipeline customer delivery points at various locations throughout their gas service territory, respectively.
First Mortgage and Insurance
The principal properties of Litigation Challenging ZEC Programs
On July 14, 2017, the U.S. District Court for the Northern District of Illinois dismissed two lawsuits challenging the ZEC program contained in FEJA. On July 17, 2017, the plaintiffs appealed the court's decisions to the U.S. Court of Appeals for the Seventh Circuit. Briefs were fully submitted on December 12, 2017 and the Court heard oral argument on January 3, 2018. At the argument, the Court asked for supplemental briefing, which was filed on January 26, 2018.
Additionally, on July 25, 2017, the U.S. District Court for the Southern District of New York dismissed a lawsuit challenging the ZEC program contained in the New York CES. On August 24, 2017, the plaintiffs appealed the decision to the Second Circuit. Briefing in the appeal was completed in December 2017, and oral argument is expected to take place in March 2018.
In addition, on November 30, 2016, a group of parties, including certain environmental groups and individuals, filed a Petition in New York State court seeking to invalidate the ZEC program. The Petition, which was amended on January 13, 2017, argued that the NYPSC did not have authority to establish the program and that it violated certain technical provisions of the State Administrative Procedures Act (SAPA) when adopting the ZEC program. On February 15, 2017, Generation and CENG filed a motion to dismiss the state court action. The NYPSC also filed a motion to dismiss the state court action. On March 24, 2017, the plaintiffs filed a memorandum of law opposing the motions to dismiss, and Generation and CENG filed a reply brief on April 28, 2017. Oral argument was held on June 19, 2017. On January 22, 2018, the court denied the motions to dismiss without commenting on the merits of the case. The case will now proceed to summary judgment upon filing of the full record.
The court decisions to date have upheld the ZEC programs which support Illinois's and New York's efforts to advance clean energy and preserve affordable and reliable energy resources for customers. See Note 3— Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information regarding FEJA and the New York CES.
Merger Commitment Unrecognized Tax Benefits
Exelon established a liability for an uncertain tax position associated with the tax deductibility of certain merger commitments incurred by Exelon in connection with the acquisitions of Constellation in 2012 and PHI in 2016. In the first quarter 2017, as a part of its examination of Exelon’s return, the IRS

National Office issued guidance concurring with Exelon’s position that the merger commitments were deductible. As a result, Exelon, Generation, PHI, Pepco,ComEd, PECO, PEPCO, DPL, and ACE decreased their liability for unrecognized tax benefits by $146 million, $19 million, $59 million, $21 million, $16 million, and $22 million, respectively, as of December 31, 2017, resulting in a benefit to Income taxes on Exelon’s, Generation’s, PHI’s, Pepco’s, DPL’s and ACE’s Consolidated Statements of Operations and Comprehensive Income and corresponding decreases in their effective tax rates.
Combined-Cycle Gas Turbine Projects
In June 2017, Generation commenced commercial operations of two new combined-cycle gas turbines (CCGTs) at the Colorado Bend II and Wolf Hollow II Generating Stations in Texas. The two new CCGTs have added nearly 2,200 MWs of capacity to Generation’s fleet, enhancing Generation’s strategy to match generation to customer load.  Generation invested approximately $1.5 billion over the past three years to complete the new plant construction, which utilizes new General Electric technology to make them among the cleanest, most efficient CCGTs in the nation.
Utility Rates and Rate Proceedings
The Utility Registrants file rate cases with their regulatory commissions seeking increases or decreases to their electric transmission and distribution, and gas distribution rates to recover their costs and earn a fair return on their investments. The outcomes of these regulatory proceedings impact the Utility Registrants’ current and future results of operations, cash flows and financial position.
The following tables show the Utility Registrants’ completed and pending distribution rate case proceedings in 2017.
Completed Distribution Rate Case Proceedings
Company Jurisdiction 
Approved Revenue Requirement Increase
(in millions)
 Approved Return on Equity Completion Date Rate Effective Date
ComEd 
Illinois (Electric)(a)
 $96
(b) 
8.4%
(c) 
December 6, 2017 January 1, 2018
Pepco District of Columbia (Electric) $37
 9.5% July 25, 2017 August 15, 2017
Pepco Maryland (Electric) $32
 9.5% October 27, 2017 October 20, 2017
DPL Maryland (Electric) $38
 9.6% February 15, 2017 February 15, 2017
DPL Delaware (Electric) $31.5
 9.7% May 23, 2017 June 1, 2017
DPL Delaware (Natural Gas) $4.9
 9.7% June 6, 2017 July 1, 2017
ACE New Jersey (Electric) $43
 9.6% September 22, 2017 October 1, 2017
________
(a)Pursuant to EIMA, ComEd’s electric distribution rates are established through a performance-based formula through which ComEd is required to file an annual update on or before May 1, with resulting rates effective in January of the following year. ComEd’s annual electric distribution formula rate update is based on prior year actual costs and current year projected capital additions (initial year revenue requirement). The update also reconciles any differences between the revenue requirement in effect for the prior year and actual costs incurred for the year (annual reconciliation).
(b)Reflects an increase of $78 million for the initial revenue requirement for 2017 and an increase of $18 million related to the annual reconciliation.
(c)ComEd’s allowed ROE under its electric distribution formula rate is the annual average rate on 30-year treasury notes plus 580 basis points and is subject to reduction if ComEd does not deliver certain reliability and customer service benefits. The initial revenue requirement for 2017 reflects an allowed ROE of 8.40%, while the annual reconciliation reflects an allowed ROE of 8.34%, which is inclusive of a 6-basis-point performance penalty.

Pending Distribution Rate Case Proceedings
Company Jurisdiction 
Requested Revenue Requirement Increase
(in millions)
 Requested Return on Equity Filing Date Expected Completion Timing
Pepco Maryland (Electric) $11
(a) 
10.1% January 2, 2018 (Updated February 5, 2018) Third quarter 2018
Pepco District of Columbia (Electric) $66
(b) 
10.1% December 19, 2017 Fourth quarter 2018
DPL Maryland (Electric) $19
(b)(c) 
10.1%
(c) 
July 14, 2017 (Updated on November 16, 2017) First quarter 2018
DPL Delaware (Electric) $31
(b) 
10.1% August 17, 2017 (Updated on October 18, 2017) Third quarter 2018
DPL Delaware (Natural Gas) $11
(b) 
10.1% August 17, 2017 (Updated on November 7, 2017) Fourth quarter 2018
________
(a)On February 5, 2018, Pepco filed with the MDPSC an update to its current distribution rate case to reflect approximately $31 million in TCJA tax savings, thereby reducing the requested annual base rate increase to $11 million.
(b)By mid-February, Pepco and DPL will update their current distribution rate cases to reflect the TCJA impacts.
(c)On December 18, 2017, a settlement agreement was filed with the MDPSC wherein DPL will be granted a rate increase of $13 million, and a ROE of 9.5% solely for purposes of calculating AFUDC and regulatory asset carrying costs.  On January 5, 2018, the MDPSC held a hearing on the settlement agreement.  DPL expects a decision in the matter in the first quarter of 2018, but cannot predict whether the MDPSC will approve the settlement agreement as filed or how much of the requested increase will be approved.
Transmission Formula Rates
The following total increases/(decreases) were included in ComEd’s, BGE’s, Pepco's, DPL's and ACE's 2017 annual electric transmission formula rate filings:
 2017
Annual Transmission Filings(a)
ComEd BGE Pepco DPL ACE
Initial revenue requirement
    increase
$44
 $31
 $5
 $6
 $20
Annual reconciliation increase (decrease)(33) 3
 15
 8
 22
Dedicated facilities decrease(b)

 (8) 
 
 
Total revenue requirement
    increase
$11
 $26
 $20
 $14
 $42
          
Allowed return on rate base(c)
8.43% 7.47% 7.92% 7.16% 8.02%
Allowed ROE(d)
11.50% 10.50% 10.50% 10.50% 10.50%
_________
(a)All rates are effective June 2017.
(b)BGE's transmission revenues include a FERC approved dedicated facilities charge to recover the costs of providing transmission service to specifically designated load by BGE.
(c)Represents the weighted average debt and equity return on transmission rate bases.
(d)As part of the FERC-approved settlement of ComEd’s 2007 transmission rate case, the rate of return on common equity is 11.50%, inclusive of a 50-basis-point incentive adder for being a member of a RTO, and the common equity component of the ratio used to calculate the weighted average debt and equity return for the transmission formula rate is currently capped at 55%. As part of the FERC-approved settlement of the ROE complaint against BGE, Pepco, DPL and ACE, the rate of return on common equity is 10.50%, inclusive of a 50-basis-point incentive adder for being a member of a RTO.

PECO Transmission Formula Rate.On May 1, 2017, PECO filed a request with FERC seeking approval to update its transmission rates and change the manner in which PECO’s transmission rate is determined from a fixed rate to a formula rate. The formula rate would be updated annually to ensure that under this rate customers pay the actual costs of providing transmission services. The formula rate filing includes a requested increase of $22 million to PECO’s annual transmission revenues and a requested rate of return on common equity of 11%, inclusive of a 50-basis-point adder for being a member of a regional transmission organization. PECO requested that the new transmission rate be effective as of July 2017. On June 27, 2017, FERC issued an Order accepting the filing and suspending the proposed rates until December 1, 2017, subject to refund, and set the matter for hearing and settlement judge procedures.  PECO cannot predict the final outcomelien of the settlement or hearing proceedings, or the transmission formula FERC may approve.
their respective Mortgages under which their respective First Mortgage Bonds are issued. See Note 316Regulatory MattersDebt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for further details on these regulatory proceedings.additional information.
Westinghouse Electric Company LLC Bankruptcy
On March 29, 2017, Westinghouse Electric Company LLC (Westinghouse) and its affiliated debtors filed petitions for relief under Chapter 11The Utility Registrants maintain property insurance against loss or damage to their properties by fire or other perils, subject to certain exceptions. For their insured losses, the Utility Registrants are self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect in the consolidated financial condition or results of operations of the Bankruptcy Code inUtility Registrants.

Exelon
Security Measures
The Registrants have initiated and work to maintain security measures. On a continuing basis, the U.S. Bankruptcy Court forRegistrants evaluate enhanced security measures at certain critical locations, enhanced response and recovery plans, long-term design changes, and redundancy measures. Additionally, the Southern District of New York. In the petitions and supporting documents, Westinghouse makes clear that its requests for relief center on one business area that is losing money - the construction of nuclear power plants in Georgia and South Carolina. On January 4, 2018, Westinghouse announced its agreement to be acquired by Brookfield Business Partners. The deal, which requires bankruptcy court and regulatory approvals, is expected to close in in the third quarter of 2018. Brookfieldenergy industry has informally indicated to Generation that it will assume all of Exelon's contractsstrategic relationships with Westinghouse. Generation is monitoring the bankruptcy and pending sale proceedingsgovernmental authorities to ensure that its rightsemergency plans are protected.
ExGen Renewables Holdings, LLC Transaction
On July 6, 2017, ExGen Renewables Holdings, LLC, a wholly owned subsidiary of Generation, completedin place and critical infrastructure vulnerabilities are addressed in order to maintain the sale of a 49% interest of ExGen Renewables Partners, LLC, a newly formed owner and operator of approximately 1,439 megawatts of Generation's operating wind and solar electric generating facilities. ExGen Renewables Holdings will be the managing member of ExGen Renewables Partners, LLC, and have day-to-day control and management over its renewable generation portfolio. The closingreliability of the transaction wascountry’s energy systems.

ITEM 3.LEGAL PROCEEDINGS
All Registrants
The Registrants are parties to various lawsuits and regulatory proceedings in the ordinary course of their respective businesses. For information regarding material lawsuits and proceedings, see Note 3 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Such descriptions are incorporated herein by these references.

ITEM 4.MINE SAFETY DISCLOSURES
Not Applicable
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PART II
(Dollars in millions, except per share data, unless otherwise noted)
ITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Exelon
Exelon’s common stock is listed on the Nasdaq (trading symbol: EXC). As of January 31, 2023, there were 994,126,931 shares of common stock outstanding and approximately 80,780 record holders of common stock.
Stock Performance Graph
The performance graph below illustrates a five-year comparison of cumulative total returns based on an initial investment of $100 in Exelon common stock, compared with the S&P 500 Stock Index and the S&P Utility Index, for the period 2018 through 2022. Cumulative total returns account for the separation of Constellation, as spin-off dividend is assumed to be reinvested as received.
This performance chart assumes:
$100 invested on December 31, 2017 in Exelon common stock, the S&P 500 Stock Index, and the S&P Utility Index; and
All dividends are reinvested.
exc-20221231_g1.jpg
36

Value of Investment at December 31,
201720182019202020212022
Exelon Corporation$100.00$118.33$123.39$118.59$167.70$181.67
S&P 500$100.00$95.62$125.72$148.85$191.58$156.88
S&P Utilities$100.00$104.11$131.54$132.18$155.53$157.97
ComEd
As of January 31, 2023, there were 127,021,394 outstanding shares of common stock, $12.50 par value, of ComEd, of which 127,002,904 shares were indirectly held by Exelon. As of January 31, 2023, in addition to Exelon, there were 283 record holders of ComEd common stock. There is no established market for shares of the common stock of ComEd.
PECO
As of January 31, 2023, there were 170,478,507 outstanding shares of common stock, without par value, of PECO, all of which were indirectly held by Exelon.
BGE
As of January 31, 2023, there were 1,000 outstanding shares of common stock, without par value, of BGE, all of which were indirectly held by Exelon.
PHI
As of January 31, 2023, Exelon indirectly held the entire membership interest in PHI.
Pepco
As of January 31, 2023, there were 100 outstanding shares of common stock, $0.01 par value, of Pepco, all of which were indirectly held by Exelon.
DPL
As of January 31, 2023, there were 1,000 outstanding shares of common stock, $2.25 par value, of DPL, all of which were indirectly held by Exelon.
ACE
As of January 31, 2023, there were 8,546,017 outstanding shares of common stock, $3.00 par value, of ACE, all of which were indirectly held by Exelon.
All Registrants
Dividends
Under applicable Federal law, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE can pay dividends only from retained, undistributed, or current earnings. A significant loss recorded at ComEd, PECO, BGE, PHI, Pepco, DPL, or ACE may limit the dividends that these companies can distribute to Exelon.
ComEd has agreed, in connection with a financing arranged through ComEd Financing III, that ComEd will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debt securities issued to ComEd Financing III; (2) it defaults on its guarantee of the payment of distributions on the preferred trust securities of ComEd Financing III; or (3) an event of default occurs under the Indenture under which the subordinated debt securities are issued. No such event has occurred.
37

PECO has agreed, in connection with financings arranged through PEC L.P. and PECO Trust IV, that PECO will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debentures which were issued to PEC L.P. or PECO Trust IV; (2) it defaults on its guarantee of the payment of distributions on the Series D Preferred Securities of PEC L.P. or the preferred trust securities of PECO Trust IV; or (3) an event of default occurs under the Indenture under which the subordinated debentures are issued. No such event has occurred.
BGE is subject to restrictions established by the MDPSC that prohibit BGE from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. No such event has occurred.
Pepco is subject to certain regulatory approvals, includingdividend restrictions established by settlements approved by the Federal Energy Regulatory Commission (FERC)MDPSC and the Public Utility Commission of Texas (PUCT) which were received during the second quarter of 2017. The sale price was $400 million plus immaterial working capital and other customary post-closing adjustments. The net proceeds, after approximately $100 million of income taxes, will be used to pay down debt and for general corporate purposes. Generation will continue to consolidate ExGen Renewables Partners, LLC and will recordDCPSC that prohibit Pepco from paying a noncontrolling interestdividend on its Consolidated Balance Sheet forcommon shares if (a) after the investor'sdividend payment, Pepco's equity shareratio would be below 48% as well as earnings attributablecalculated pursuant to the noncontrolling interest inMDPSC's and DCPSC's ratemaking precedents, or (b) Pepco’s senior unsecured credit rating is rated by one of the Consolidated Statements of Operations and Comprehensive Income each period going forward.three major credit rating agencies below investment grade. No such event has occurred.
Hurricanes Harvey, Irma and Maria Impacts
Although Exelon subsidiaries provided substantial assistanceDPL is subject to recovery efforts following Hurricanes Harvey and Irma, Hurricanes Harvey, Irma and Maria are not expected to have a material impact on the Registrants’ businesses or financial results given the limited operations in the areas affectedcertain dividend restrictions established by settlements approved by the storms.DEPSC and MDPSC that prohibit DPL from paying a dividend on its common shares if (a) after the dividend payment, DPL's equity ratio would be below 48% as calculated pursuant to the DEPSC's and MDPSC's ratemaking precedents, or (b) DPL’s corporate issuer or senior unsecured credit rating, or its equivalent, is rated by any of the three major credit rating agencies below the generally accepted definition of investment grade. No such event has occurred.

Exelon’s Strategy and Outlook for 2018 and Beyond
Exelon’s value proposition and competitive advantage comeACE is subject to certain dividend restrictions established by settlements approved by the NJBPU that prohibit ACE from paying a dividend on its scope and its core strengthscommon shares if (a) after the dividend payment, ACE's common equity ratio would be below 48% as calculated pursuant to the NJBPU's ratemaking precedents, or (b) ACE's senior corporate issuer or senior unsecured credit rating is rated by one of operational excellence and financial discipline. Exelon leverages its integrated business model to create value. Exelon’s regulated and competitive businesses feature a mix of attributes that, when combined, offer shareholders and customers a unique value proposition:
Exelon’s utilities provide a foundation for steadily growing earnings, which translatesthe three major credit rating agencies below investment grade. ACE is also subject to a stable currency in our stock.
Generation’s competitive businesses provide free cash flowdividend restriction which requires ACE to invest primarily innotify and obtain the utilities and in long-term, contracted assets and to reduce debt.
Exelon believes its strategy provides a platform for optimal success in an energy industry experiencing fundamental and sweeping change.
Exelon’s utility strategy is to improve reliability and operations and enhance the customer experience, while ensuring ratemaking mechanisms provide the utilities fair financial returns. The Exelon utilities only invest in rate base where it provides a benefit to customers and the community by improving reliability and the service experience or otherwise meeting customer needs. The Exelon utilities make these investments at the lowest reasonable cost to customers. Exelon seeks to leverage its scale and expertise across the utilities platform through enhanced standardization and sharing of resources and best practices to achieve improved operational and financial results. Additionally, the Utility Registrants anticipate making significant future investments in smart meter technology, transmission projects, gas infrastructure, and electric system improvement projects, providing greater reliability and improved service for our customers and a stable return for the company.
Generation’s competitive businesses create value for customers by providing innovative energy solutions and reliable, clean and affordable energy. Generation’s electricity generation strategy is to pursue opportunities that provide stable revenues and generation to load matching to reduce earnings volatility. Generation leverages its energy generation portfolio to deliver energy to both wholesale and retail customers. Generation’s customer-facing activities foster development and delivery of other innovative energy-related products and services for its customers. Generation operates in well-developed energy markets and employs an integrated hedging strategy to manage commodity price volatility. Its generation fleet, including its nuclear plants which consistently operate at high capacity factors, also provide geographic and supply source diversity. These factors help Generation mitigate the current challenging conditions in competitive energy markets.
Exelon’s financial priorities are to maintain investment grade credit metrics at eachprior approval of the Registrants, to maintain optimal capital structure and to return value to Exelon’s shareholders with an attractive dividend throughout the energy commodity market cycle and through stable earnings growth. NJBPU before dividends can be paid if its equity as a percent of its total capitalization, excluding securitization debt, falls below 30%. No such events have occurred.
Exelon’s Board of Directors approved an updated dividend policy providing an increasefor 2023. The 2023 quarterly dividend will be $0.36 per share.
As of 5% each yearDecember 31, 2022, Exelon had retained earnings of $4,597 million, ComEd had retained earnings of $2,030 million, PECO had retained earnings of $1,861 million, BGE had retained earnings of $2,075 million, and PHI had undistributed losses of $352 million.
The following table sets forth Exelon’s quarterly cash dividends per share paid during 2022 and 2021:
20222021
(per share)Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Exelon$0.3375 $0.3375 $0.3375 $0.3375 $0.3825 $0.3825 $0.3825 $0.3825 
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The following table sets forth PHI's quarterly distributions and ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's quarterly common dividend payments:
20222021
(in millions)4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
ComEd144 145 145 144 127 127 126 127 
PECO100 99 100 100 85 85 84 85 
BGE74 75 75 76 73 73 72 74 
PHI125 230 293 102 98 191 333 81 
Pepco63 100 258 42 47 98 95 28 
DPL48 39 15 41 41 43 23 40 
ACE17 90 19 19 51 215 14 
First Quarter 2023 Dividend
On February 14, 2023, Exelon's Board of Directors declared a regular quarterly dividend of $0.36 per share on Exelon’s common stock for the period covering 2018 through 2020, beginning with thefirst quarter of 2023. The dividend is payable on Friday, March 2018 dividend.10, 2023, to shareholders of record of Exelon as of 5 p.m. Eastern time on Monday, February 27, 2023.
Various market, financial, regulatory, legislative and operational factors could affect the Registrants' success
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ITEM 6.[RESERVED]
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Item 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
(Dollars in pursuing their strategies. millions except per share data, unless otherwise noted)
Exelon
Executive Overview
Exelon continues to assess infrastructure, operational, commercial, policy, and legal solutions to these issues. One key issue is ensuring the ability to properly value nuclear generation assetsa utility services holding company engaged in the market, solutions to which Exelon is actively pursuing in a variety of jurisdictions and venues. See ITEM 1A. RISK FACTORS for additional information regarding market and financial factors.
Continually optimizing the cost structure is a key component of Exelon’s financial strategy.  In August 2015, Exelon announced a cost management program focused on cost savings of approximately $400 million at BSC and Generation, of which approximately 60% of run-rate savings was achieved by the

end of 2017 with the remainder to be fully realized in 2018.  At least 75% of the savings are expected to be related to Generation, with the remaining amount related to the Utility Registrants. Additionally, in November 2017, Exelon announced a new commitment for an additional $250 million of cost savings, primarily at Generation, to be achieved by 2020. These actions are in response to the continuing economic challenges confronting all parts of Exelon’s business and industry, necessitating continued focus on cost management through enhanced efficiency and productivity.
Growth Opportunities
Management continually evaluates growth opportunities aligned with Exelon’s businesses, assets and markets, leveraging Exelon’s expertise in those areas and offering sustainable returns.
Regulated Energy Businesses. The PHI merger provides an opportunity to accelerate Exelon’s regulated growth to provide stable cash flows, earnings accretion, and dividend support.  Additionally, the Utility Registrants anticipate investing approximately $26 billion over the next five years in electric and natural gas infrastructure improvements and modernization projects, including smart meter and smart grid initiatives, storm hardening, advanced reliability technologies,energy distribution and transmission projects, which is projected to result in an increase to current rate basebusinesses through ComEd, PECO, BGE, Pepco, DPL, and ACE.
Exelon has six reportable segments consisting of approximately $15 billion by the end of 2022. The Utility Registrants invest in rate base where beneficial to customersComEd, PECO, BGE, Pepco, DPL, and the community by increasing reliability and the service experience or otherwise meeting customer needs. These investments are made at the lowest reasonable cost to customers.
ACE. See Note 31Regulatory MattersSignificant Accounting Policies and Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information onregarding Exelon's principal subsidiaries and reportable segments.
Exelon’s consolidated financial information includes the Smart Meter and Smart Grid Initiatives and infrastructure development and enhancement programs.
Competitive Energy Businesses.Generation continually assesses the optimal structure and compositionresults of its generation assets as well as explores wholesale and retail opportunities within the power and gas sectors. Generation’s long-term growth strategy is to ensure appropriate valuation of its generation assets, in part through public policy efforts, identify and capitalize on opportunities that provide generation to load matching as a means to provide stable earnings, and identify emerging technologies where strategic investments provide the option for significant future growth or influence in market development.
Liquidity Considerations
Each of the Registrants annually evaluates its financing plan, dividend practices and credit line sizing, focusing on maintaining its investment grade ratings while meeting its cash needs to fund capital requirements, retire debt, pay dividends, fund pension and OPEB obligations and invest in new and existing ventures. A broad spectrum of financing alternatives beyond the core financing options can be used to meet its needs and fund growth including monetizing assets in the portfolio via project financing, asset sales, and the use of other financing structures (e.g., joint ventures, minority partners, etc.). The Registrants expect cash flows to be sufficient to meetseven separate operating expenses, financing costs and capital expenditure requirements.
Exelon, Generation,subsidiary registrants, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE, have unsecured syndicated revolving credit facilitieswhich, along with aggregate bank commitmentsExelon, are collectively referred to as the Registrants. The following combined Management’s Discussion and Analysis of $0.6 billion, $5.3 billion, $1.0 billion, $0.6 billion, $0.6 billion, $0.5 billion, $0.5 billionFinancial Condition and $0.4 billion, respectively. Generation also has bilateral credit facilities with aggregate maximum availabilityResults of $0.5 billion. See LiquidityOperations is separately filed by Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL, and Capital Resources — Credit Matters — Exelon Credit Facilities below.
ACE. However, none of the Registrants makes any representation as to information related solely to any of the other Registrants. For further detail regardingdiscussion of the Utility Registrants' liquidity foryear ended December 31, 2021 compared to the year ended December 31, 2017, see Liquidity and Capital Resources discussion below.2020, refer to ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS in the 2021 Recast Form 10-K, which was filed with the SEC on June 30, 2022.

Project Financing
Generation utilizes individual project financings as a meansCOVID-19. The Registrants have taken steps to financemitigate the construction of various generating asset projects. Project financing is based upon a nonrecourse financial structure, in which project debt and equity used to finance the project are paid back from the cash generatedpotential risks posed by the newly constructed asset once operational. Borrowings under these agreements are securedglobal outbreak (pandemic) of COVID-19. The Registrants provide a critical service to our customers which means that it is paramount that we keep our employees who operate our businesses safe and minimize unnecessary risk of exposure to the virus by the assets and equity of each respective project. The lenders do not have recourse against Exelon or Generationtaking extra precautions for employees who work in the event of a default. If a specific project financing entity does not maintain compliance with its specific debt financing covenants, there could be a requirement to accelerate repayment of the associated debt or other project-related borrowings earlier than the stated maturity dates. In these instances, if such repayment was not satisfied, or restructured, the lenders or security holders would generallyfield and in our facilities. The Registrants have rights to foreclose against the project-specific assetsimplemented work from home policies where appropriate, and related collateral. The potential requirement to satisfy its associated debt or other borrowings earlier than otherwise anticipated could lead to impairments due to a higher likelihood of disposing of the respective project-specific assets significantly before the end of their useful lives. See Note 13 — Debt and Credit Agreements of the Combined Notes to the Consolidated Financial Statements for additional informationimposed travel limitations on nonrecourse debt.
Other Key Business Drivers and Management Strategies
Utility Rates and Rate Proceedingsemployees.
The Utility Registrants file rate casescontinue to implement strong physical and cyber-security measures to ensure that our systems remain functional in order to both serve our operational needs with their regulatory commissions seeking increases or decreasesa remote workforce and keep them running to their electric transmission and distribution, and gas distribution ratesensure uninterrupted service to recover their costs and earn a fair return on their investments. The outcomes of these regulatory proceedings impact the Utility Registrants’ current and future results of operations, cash flows andour customers.
There were no changes in internal control over financial positions. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for further details on these regulatory proceedings.
Power Markets
Price of Fuels
The use of new technologies to recover natural gas from shale deposits is increasing natural gas supply and reserves, which places downward pressure on natural gas prices and, therefore, on wholesale and retail power prices, which results in a reduction in Exelon’s revenues. Forward natural gas prices have declined significantly over the last several years; in part reflecting an increase in supply due to strong natural gas production (due to shale gas development).
Capacity Market Changes in PJM
In the wake of the January 2014 Polar Vortex that blanketed much of the Eastern and Midwestern United States, it became clear that while a major outage event was narrowly avoided, resources in PJM were not providing the level of reliability expected by customers. As a result, on December 12, 2014, PJM filed at FERC a proposal to make significant changes to its current capacity market construct, the Reliability Pricing Model (RPM). PJM’s proposed changes generally sought to improve resource performance and reliability largely by limiting the excuses for non-performance and by increasing the penalties for performance failures. The proposal permits suppliers to include in capacity market offers additional costs and risk so they can meet these higher performance requirements. While offers are expected to put upward pressure on capacity clearing prices, operational improvements madereporting as a result of PJM’s proposalCOVID-19 that materially affected, or are expectedreasonably likely to improve reliability,materially affect, any of the Registrants’ internal control over financial reporting. See ITEM 9A. CONTROLS AND PROCEDURES for additional information.
There were no material impacts to reduce energy production costsExelon from unfavorable economic conditions due to COVID-19 for the years ended December 31, 2022 and 2021, other than the 2022 impairment discussed below.
The Registrants assessed long-lived assets, goodwill, and investments for recoverability. Exelon and BGE recorded a pre-tax impairment charge of $48 million in 2022 as a result of more efficient operations andCOVID-19 impacts on office use. See Note 12 — Asset Impairments for additional information related to reducethis impairment assessment. None of the need for out of market energy payments to suppliers. Generation participated activelyother Registrants recorded material impairment charges in PJM’s stakeholder process through which PJM developed the proposal and also actively participated in the FERC proceeding including filing comments. On June 9,

2015, FERC approved PJM's filing largely2022 as proposed by PJM, including transitional auction rules for delivery years 2016/2017 through 2017/2018. As a result of this and several related orders, PJM hosted its 2018/2019 Base Residual Auction (results posted on August 21, 2015) and its transitional auction for delivery year 2016/2017 (results posted on August 31, 2015) and its transitional auction for delivery years 2017/2018 (results posted on September 9, 2015). On May 10, 2016, FERC largely denied rehearing, and a number of parties appealed to the U.S. Court of Appeals for the DC Circuit for review of the decision. On June 20, 2017, the DC Circuit denied all the appeals.
MISO Capacity Market Results
On April 14, 2015, the MISO released the results of its capacity auction covering the June 2015 through May 2016 delivery year.  AsCOVID-19. Additionally, there were no material impairment charges recorded in 2021 as a result of COVID-19.
The Registrants will continue to monitor developments affecting their workforce, customers, and suppliers and will take additional precautions that they determine to be necessary in order to mitigate the auction, capacity prices for the zone 4 region in downstate Illinois increased to $150 per MW per day beginning in June 2015, an increase from the prior pricing of $16.75 per MW per day that was in effect from June 2014 to May 2015. Generation had an offer that was selected in the auction. However, due to Generation's ratable hedging strategy, the results of the capacity auction have not had a material impact on Exelon's and Generation's consolidated results of operations and cash flows.
Additionally, in late May and June 2015, separate complaints were filed at the FERC by each of the State of Illinois, the Southwest Electric Cooperative, Public Citizens, Inc., and the Illinois Industrial Energy Consumers challenging the results of this MISO capacity auction for the 2015/2016 delivery in MISO delivery zone 4.impacts. The complaints allege generally that 1) the results of the capacity auction for zone 4 are not just and reasonable, 2) the results should be suspended, set for hearing and replaced with a new just and reasonable rate, 3) a refund date should be established and that 4) certain alleged behavior by one of the market participants other than Exelon or Generation, be investigated.
On October 1, 2015, FERC announced that it was conducting a non-public investigation (that does not involve Exelon or Generation) into whether market manipulation or other potential violations occurred related to the auction. On December 31, 2015, FERC issued a decision that certain of the rules governing the establishment of capacity prices in downstate Illinois are “not just and reasonable” on a prospective basis. FERC ordered that certain rules be changed prior to the April 2016 auction which set capacity prices for the 2016/2017 planning year. In response to this order, MISO filed certain rule changes with FERC. On March 18, 2016, FERC largely denied rehearing of its December 31, 2015 order. FERC continues to conduct its non-public investigation to determine if the April 2015 auction results were manipulated and, if so, whether refunds are appropriate. FERC did establish May 28, 2015, the day the first complaint was filed, as the date from which refunds (if ordered) would be calculated, and it also made clear that the findings in the December 31, 2015 order do not prejudge the investigation or related proceedings. GenerationRegistrants cannot predict the impact the FERC order may ultimately have on future auction results, capacity pricing or decisions related to the potential early retirementfull extent of the Clinton nuclear plant, however, such impacts could be material to Generation's future results of operations and cash flows. See Note 8 - Early Nuclear Plant Retirements of the Combined Notes to the Consolidated Financial Statements for additional information on the impacts of COVID-19, which will depend on, among other things, the MISO announcement.
Complaints at FERC Seeking to Mitigate Illinoisrate, and New York Programs Providing ZECs
PJM and NYISO capacity markets include a Minimum Offer Price Rule (MOPR) that is intended to preclude buyers from exercising buyer market power. If a resource is subjected to a MOPR, its offer is adjusted to remove the revenues it receives through a federal, state or other government-provided financial support program - resulting in a higher offer that may not clear the capacity market. Currently, the MOPRs in PJM and NYISO apply only to certain new resources. Exelon has generally opposed policies that require subsidies or give preferential treatment to generation providers or technologies that do not provide superior reliability or environmental benefits, or that would threaten the reliability and valuepublic perceptions of the integrated electricity grid. Thus, Exelon has supported a MOPR as a meanseffectiveness, of minimizing the detrimental impact certain subsidized resources could have on capacity markets (such as the Newvaccinations and rate of resumption of business activity.


Jersey (LCAPP) and Maryland (CfD) programs). However, in Exelon’s view, MOPRs should not be applied to resources that receive compensation for providing superior reliability or environmental benefits.
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On January 9, 2017, the Electric Power Supply Association (EPSA) filed two requests with FERC: one seeking to amend a prior complaint against PJM and another seeking expedited action on a pending NYISO compliance filing in an existing proceeding. Both filings allege that the relevant MOPR should be expanded to also apply to existing resources receiving ZEC compensation under the New York CES and Illinois ZES programs. The EPSA parties have filed motions to expedite both proceedings. Exelon has filed protests at FERC in response to each filing, arguing generally that ZEC payments provide compensation for an environmental attribute that is distinct from the energy and capacity sold in the FERC-jurisdictional markets, and therefore, are no different than other renewable support programs like the PTC and RPS that have generally not been subject to a MOPR. However, if successful, for Generation's facilities in NYISO and PJM expected to receive ZEC compensation (Quad Cities, Ginna, Nine Mile Point and FitzPatrick), an expanded MOPR could require exclusion

DOE Notice of Proposed Rulemaking
On August 23, 2017, the DOE staff released its report on the reliability of the electric grid. One aspect of the wide-ranging report is the DOE’s recognition that the electricity markets do not currently value the resiliency provided by baseload generation, such as nuclear plants. On September 28, 2017, the DOE issued a Notice of Proposed Rulemaking (NOPR) that would entitle certain eligible resilient generating units (i.e., those located in organized markets, with a 90-day supply of fuel on site, not already subject to state cost of service regulation and satisfying certain other requirements) to recover fully allocated costs and earn a fair return on equity on their investment. The DOE's NOPR recommended that the FERC take comments for 45 days after publication in the Federal Register and issue a final order 60 days after such publication.  On January 8, 2018, the FERC issued an order terminating the rulemaking docket that was initiated to address the proposed rule in the DOE NOPR, concluding the proposed rule did not sufficiently demonstrate there is a resiliency issue and that it proposed a remedy that did not appear to be just, reasonable and nondiscriminatory as required under the Federal Power Act. At the same time, the FERC initiated a new proceeding to consider resiliency challenges to the bulk power system and evaluate whether additional FERC action to address resiliency would be appropriate. The FERC directed each RTO and ISO to respond within 60 days to 24 specific questions about how they assess and mitigate threats to resiliency. Interested parties may submit reply comments within 30 days after the due date of the RTO/ISO responses. Exelon has been and will continue to be an active participant in these proceedings, but cannot predict the final outcome or its potential financial impact, if any, on Exelon or Generation.
Energy Demand
Modest economic growth partially offset by energy efficiency initiatives is resulting in flat to declining load growth in electricity for the utilities. There is decrease in projected load for electricity for ComEd, PECO, BGE, and DPL, and an increase in projected load for electricity for Pepco and ACE. ComEd, PECO, BGE, Pepco, DPL, and ACE are projecting load volumes to increase (decrease) by (0.5)%, (0.5)%, (0.6)%, 1.5%, (1.5)% and 1.5%, respectively, in 2018 compared to 2017.

Retail Competition
Generation’s retail operations compete for customers in a competitive environment, which affect the margins that Generation can earn and the volumes that it is able to serve. The market experienced high price volatility in the first quarter of 2014 which contributed to bankruptcies and consolidations within the industry during the year. However, forward natural gas and power prices are expected to remain low and thus we expect retail competitors to stay aggressive in their pursuit of market share, and that wholesale generators (including Generation) will continue to use their retail operations to hedge generation output.
Strategic Policy Alignment
As part of its strategic business planning process, Exelon routinely reviews its hedging policy, dividend policy, operating and capital costs, capital spending plans, strength of its balance sheet and credit metrics, and sufficiency of its liquidity position, by performing various stress tests with differing variables, such as commodity price movements, increases in margin-related transactions, changes in hedging practices, and the impacts of hypothetical credit downgrades.
Exelon's Board of Directors declared first, second, third and fourth quarter 2017 dividends of $0.3275 per share each on Exelon's common stock, and the first quarter 2018 dividends declared was $0.3450 per share. The dividends for the first, second, third and fourth quarter 2017 were paid on March 10, 2017, June 9, 2017, September 8, 2017 and December 8, 2017, respectively. The first quarter 2018 dividend is payable on March 9, 2018.
Exelon’s Board of Directors approved an updated dividend policy providing an increase of 5% each year for the period covering 2018 through 2020, beginning with the March 2018 dividend.
Hedging Strategy
Exelon’s policy to hedge commodity risk on a ratable basis over three-year periods is intended to reduce the financial impact of market price volatility. Generation is exposed to commodity price risk associated with the unhedged portion of its electricity portfolio. Generation enters into non-derivative and derivative contracts, including financially-settled swaps, futures contracts and swap options, and physical options and physical forward contracts, all with credit-approved counterparties, to hedge this anticipated exposure. Generation has hedges in place that significantly mitigate this risk for 2018 and 2019. However, Generation is exposed to relatively greater commodity price risk in the subsequent years with respect to which a larger portion of its electricity portfolio is currently unhedged. As of December 31, 2017, the percentage of expected generation hedged is 85%-88%, 55%-58% and 26%-29% for 2018, 2019, and 2020 respectively. The percentage of expected generation hedged is the amount of equivalent sales divided by the expected generation. Expected generation is the volume of energy that best represents our commodity position in energy markets from owned or contracted generating facilities based upon a simulated dispatch model that makes assumptions regarding future market conditions, which are calibrated to market quotes for power, fuel, load following products, and options. Equivalent sales represent all hedging products, such as wholesale and retail sales of power, options and swaps. Generation has been and will continue to be proactive in using hedging strategies to mitigate commodity price risk in subsequent years as well.
Generation procures oil and natural gas through long-term and short-term contracts and spot-market purchases. Nuclear fuel is obtained predominantly through long-term uranium concentrate supply contracts, contracted conversion services, contracted enrichment services, or a combination thereof, and contracted fuel fabrication services. The supply markets for uranium concentrates and certain nuclear fuel services, coal, oil and natural gas are subject to price fluctuations and availability restrictions. Supply market conditions may make Generation’s procurement contracts subject to credit risk related to the potential non-performance of counterparties to deliver the contracted commodity or service at the

contracted prices. Approximately 59% of Generation’s uranium concentrate requirements from 2018 through 2022 are supplied by three producers. In the event of non-performance by these or other suppliers, Generation believes that replacement uranium concentrate can be obtained, although at prices that may be unfavorable when compared to the prices under the current supply agreements. Non-performance by these counterparties could have a material adverse impact on Exelon’s and Generation’s results of operations, cash flows and financial positions.
The Utility Registrants mitigate commodity price risk through regulatory mechanisms that allow them to recover procurement costs from retail customers.
Environmental Legislative and Regulatory Developments
Exelon was actively involved in the Obama Administration’s development and implementation of environmental regulations for the electric industry, in pursuit of its business strategy to provide reliable, clean, affordable and innovative energy products. These efforts have most frequently involved air, water and waste controls for fossil-fueled electric generating units, as set forth in the discussion below. These regulations have had a disproportionate adverse impact on coal-fired power plants, requiring significant expenditures of capital and variable operating and maintenance expense, and have resulted in the retirement of older, marginal facilities. Due to its low emission generation portfolio, Generation has not been significantly affected by these regulations, representing a competitive advantage relative to electric generators that are more reliant on fossil fuel plants.
Through the issuance of a series of Executive Orders (EO), President Trump has initiated review of a number of EPA and other regulations issued during the Obama Administration, with the expectation that the Administration will seek repeal or significant revision of these rules. Under these EOs, each executive agency is required to evaluate existing regulations and make recommendations regarding repeal, replacement, or modification. The Administration’s actions are intended to result in less stringent compliance requirements under air, water, and waste regulations. The exact nature, extent, and timing of the regulatory changes are unknown, as well as the ultimate impact on Exelon’s and its subsidiaries results of operations and cash flows.
In particular, the Administration has targeted existing EPA regulations for repeal, including notably the Clean Power Plan, as well as revoking many Executive Orders, reports, and guidance issued by the Obama Administration on the topic of climate change or the regulation of greenhouse gases. The Executive Order also disbanded the Interagency Working Group that developed the social cost of carbon used in rulemakings, and withdrew all technical support documents supporting the calculation. Other regulations that have been specifically identified for review are the Clean Water Act rule relating to jurisdictional waters of the U.S., the Steam Electric Effluent Guidelines relating to waste water discharges from coal-fired power plants, and the 2015 National Ambient Air Quality Standard (NAAQS) for ozone. The review of final rules could extend over several years as formal notice and comment rulemaking process proceeds.
Air Quality
Mercury and Air Toxics Standard Rule (MATS). On December 16, 2011, the EPA signed a final rule to reduce emissions of toxic air pollutants from power plants and signed revisions to the NSPS for electric generating units. The final rule, known as MATS, requires coal-fired electric generation plants to achieve high removal rates of mercury, acid gases and other metals, and to make capital investments in pollution control equipment and incur higher operating expenses. The initial compliance deadline to meet the new standards was April 16, 2015; however, facilities may have been granted an additional one or two-year extension in limited cases. Numerous entities challenged MATS in the D.C. Circuit Court, and Exelon intervened in support of the rule. In April 2014, the D.C. Circuit Court issued an opinion upholding MATS in its entirety. On appeal, the U.S. Supreme Court decided in June 2015 that the EPA unreasonably refused to consider costs in determining whether it is appropriate and necessary to regulate

hazardous air pollutants emitted by electric utilities. The U.S. Supreme Court, however, did not vacate the rule; rather, it was remanded to the D.C. Circuit Court to take further action consistent with the U.S. Supreme Court’s opinion on this single issue. On April 27, 2017, the D.C. Circuit granted EPA’s motion to hold the litigation in abeyance, pending EPA’s review of the MATS rule pursuant to President Trump’s EO discussed above. Following EPA’s review and determination of its course of action for the MATS rule, the parties will have 30 days to file motions on future proceedings. Notwithstanding the Court’s order to hold the litigation in abeyance, the MATS rule remains in effect. Exelon will continue to participate in the remanded proceedings before the D.C. Circuit Court as an intervenor in support of the rule.
Clean Power Plan. On April 28, 2017, the D.C. Circuit Court issued orders in separate litigation related to the EPA’s actions under the Clean Power Plan (CPP) to amend Clean Air Act Section 111(d) regulation of existing fossil-fired electric generating units and Section 111(b) regulation of new fossil-fired electric generating units. In both cases, the Court has determined to hold the litigation in abeyance pending a determination whether the rule should be remanded to the EPA. On October 10, 2017, EPA issued a proposed rule to repeal the CPP in its entirety, based on a proposed change in the Agency’s legal interpretation of Clean Air Act Section 111(d) regarding actions that the Agency can consider when establishing the Best System of Emission Reduction (“BSER”) for existing power plants. Under the proposed interpretation, the Agency exceeded its authority under the Clean Air Act by regulating beyond individual sources of GHG emissions. The EPA has also indicated its intent to issue an advance notice of proposed rulemaking to solicit information on systems of emission reduction that are in accord with the Agency’s proposed revised legal interpretation; namely, only by regulating emission reductions that can be implemented at and to individual sources.
2015 Ozone National Ambient Air Quality Standards (NAAQS). On April 11, 2017, the D.C. Circuit ordered that the consolidated 2015 ozone NAAQS litigation be held in abeyance pending EPA’s further review of the 2015 Rule. EPA did not meet the October 1, 2017 deadline to promulgate initial designations for areas in attainment or non-attainment of the standard. A number of states and environmental organizations have notified the EPA of their intent to file suit to compel EPA to issue the designations.
Climate Change. Exelon supports comprehensive climate change legislation or regulation, including a cap-and-trade program for GHG emissions, which balances the need to protect consumers, business and the economy with the urgent need to reduce national GHG emissions. In the absence of Federal legislation, the EPA is moving forward with the regulation of GHG emissions under the Clean Air Act. In addition, there have been recent developments in the international regulation of GHG emissions pursuant to the United Nations Framework Convention on Climate Change (“UNFCCC” or “Convention”). See ITEM 1.BUSINESS, "Global Climate Change" for further discussion.
Water Quality
Section 316(b) requires thatUnder the coolingfederal Clean Water Act, NPDES permits for discharges into waterways are required to be obtained from the EPA or from the state environmental agency to which the permit program has been delegated, and permits must be renewed periodically. Certain of Exelon's facilities discharge water intake structures at electric power plants reflect the best technology available to minimize adverse environmental impacts,into waterways and is implemented through state-level NPDES permit programs. All of Generation’s power generation facilities with cooling water systems are therefore subject to these regulations and operate under NPDES permits.
Under Clean Water Act Section 404 and state laws and regulations, the regulations. Facilities without closed-cycle recirculating systems (e.g., cooling towers) are potentially most affected by recent changesRegistrants may be required to obtain permits for projects involving dredge or fill activities in waters of the regulations. For Generation, thoseUnited States.
Where Registrants’ facilities are Calvert Cliffs, Clinton, Dresden, Eddystone, Fairless Hills, FitzPatrick, Ginna, Gould Street, Mountain Creek, Handley, Mystic 7, Nine Mile Point Unit 1, Peach Bottom, Quad Cities, and Salem.See ITEM 1. BUSINESS, "Water Quality"required to secure a federal license or permit for further discussion.activities that may result in a discharge to covered waters, they may be required to obtain a state water quality certification under Clean Water Act section 401.
Solid and Hazardous Waste and Environmental Remediation
In October 2015,CERCLA provides for response and removal actions coordinated by the first federal regulationEPA in the event of threatened releases of hazardous substances and authorizes the EPA either to clean up sites at which hazardous substances have created actual or potential environmental hazards or to order persons responsible for the situation to do so. Under CERCLA, generators and transporters of hazardous substances, as well as past and present owners and operators of hazardous waste sites, are strictly, jointly and severally liable for the cleanup costs of hazardous waste at sites, many of which are listed by the EPA on the National Priorities List (NPL). These PRPs can be ordered to perform a cleanup, can be sued for costs associated with an EPA-directed cleanup, may voluntarily settle with the EPA concerning their liability for cleanup costs, or may voluntarily begin a site investigation and site remediation under state oversight. Most states have also enacted statutes that contain provisions substantially similar to CERCLA. Such statutes apply in many states where the Registrants currently own or operate, or previously owned or operated, facilities, including Delaware, Illinois, Maryland, New Jersey, and Pennsylvania and the District of Columbia. In addition, RCRA governs treatment, storage and disposal of coal combustion residuals (CCR) from power plants became effective. solid and hazardous wastes and cleanup of sites where such activities were conducted.
The rule classifies CCR as non-hazardous waste under RCRA. Registrants’ operations have in the past, and may in the future, require substantial expenditures in order to comply with these Federal and state environmental laws. Under these laws, the regulation, CCR will continue to be regulated by most states subject to coordination with the

federal regulations. Generation has previously recorded accruals consistent with state regulation for its owned coal ash sites, and as such, the regulation is not expected to impact Exelon’s and Generation’s financial results. Generation does not have sufficient information to reasonably assess the potential likelihood or magnitude of any remediation requirements thatRegistrants may be asserted underliable for the new federal regulations for coal ash disposal sitescosts of remediating environmental contamination of property now or formerly owned by Generation. For these reasons, Generation is unablethem and of property contaminated by hazardous substances generated by them. The Registrants own or lease a number of real estate parcels, including parcels on which their operations or the operations of others may have resulted in contamination by substances that are considered hazardous under environmental laws. The Registrants and their subsidiaries are, or could become in the future, parties to predict whetherproceedings initiated by the EPA, state agencies, and/or other responsible parties under CERCLA and RCRA or similar state laws with respect to what extent ita number of sites or may ultimatelyundertake to investigate and remediate sites for which they may be held responsiblesubject to enforcement actions by an agency or third-party.
ComEd’s and PECO’s environmental liabilities primarily arise from contamination at former MGP sites, which were operated by ComEd's and PECO's predecessor companies. ComEd, pursuant to an ICC order, and PECO, pursuant to settlements of natural gas distribution rate cases with the PAPUC, have an on-going process to recover certain environmental remediation costs of the MGP sites through a provision within customer rates. BGE, Pepco, DPL, and ACE do not have material contingent liabilities relating to MGP sites. The amount to be
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expended in 2023 for compliance with environmental remediation related to contamination at former MGP sites and other costs relatinggas purification sites is estimated to formerly owned coal ash disposal sites underbe approximately $52 million which consists primarily of $44 million at ComEd.
As of December 31, 2022, the new regulations.Registrants have established appropriate contingent liabilities for environmental remediation requirements. In addition, the Registrants may be required to make significant additional expenditures not presently determinable for other environmental remediation costs.
See Note 233 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information regarding the Registrants’ environmental matters, remediation efforts, and related impacts to the Registrants’ Consolidated Financial Statements.
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Information about our Executive Officers as of February 14, 2023
Exelon
NameAgePositionPeriod
Butler, Calvin G. Jr.53 President and Chief Executive Officer, Exelon2022 - Present
Chief Operating Officer, Exelon2021 - 2022
Senior Executive Vice President, Exelon2019 - 2022
Chief Executive Officer, Exelon Utilities2019 - 2022
Chief Executive Officer, BGE2014 - 2019
Jones, Jeanne43 Executive Vice President and Chief Financial Officer, Exelon2022 - Present
Senior Vice President, Corporate Finance, Exelon2021 - 2022
Senior Vice President and Chief Financial Officer, ComEd2018 - 2021
Glockner, David62 Executive Vice President, Compliance, Audit and Risk, Exelon2020 - Present
Chief Compliance Officer, Citadel LLC2017 - 2020
Littleton, Gayle E.50 Executive Vice President, General Counsel, Exelon2020 - Present
Partner, Jenner & Block LLP2015 - 2020
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Trpik, Joseph R.53 Senior Vice President and Corporate Controller, Exelon2022 - Present
Interim Senior Vice President & CFO, ComEd2021 - 2022
Senior Vice President & CFO, Exelon Utilities2018 - 2021
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ComEd
NameAgePositionPeriod
Quiniones, Gil56 Chief Executive Officer, ComEd2021 - Present
President and Chief Executive Officer, New York Power Authority2011 - 2021
Donnelly, Terence R.62 President and Chief Operating Officer, ComEd2018 - Present
Graham, Elisabeth J.44 Senior Vice President, Chief Financial Officer & Treasurer, ComEd2022 - Present
Treasurer, Exelon2018 - 2022
Rippie, E. Glenn62 Senior Vice President and General Counsel, ComEd2022 - Present
Senior Vice President and Deputy General Counsel, Energy Regulation, Exelon2022 - Present
Partner, Jenner & Block LLP2019 - 2021
Partner and Chief Financial Officer, Rooney, Rippie & Ratnaswamy, LLP2010 - 2019
Washington, Melissa53 Senior Vice President, Customer Operations, ComEd2021 - Present
Senior Vice President, Governmental and External Affairs, ComEd2019 - 2021
Vice President, Governmental and External Affairs, ComEd2019 - 2019
Vice President, External Affairs and Large Customer Services, ComEd2016 - 2019
Binswanger, Lewis63 Senior Vice President, Governmental, Regulatory and External Affairs, ComEd2022 - Present
Vice President, External Affairs, Nicor Gas2013 - 2022
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PECO
NameAgePositionPeriod
Innocenzo, Michael A.57 President and Chief Executive Officer, PECO2018 - Present
Levine, Nicole46 Senior Vice President and Chief Operations Officer, PECO2022 - Present
Vice President, Electrical Operations, PECO2018 - 2022
Humphrey, Marissa43 Senior Vice President, Chief Financial Officer and Treasurer, PECO2022 - Present
Vice President, Regulatory Policy and Strategy (NJ/DE), PHI, DPL, and ACE2021 - 2022
Vice President, Finance, Exelon Utilities2019 - 2020
Vice President, Financial Planning and Analysis, PHI, Pepco, DPL, and ACE2016 - 2019
Murphy, Elizabeth A.63 Senior Vice President, Governmental, Regulatory and External Affairs, PECO2016 - Present
Williamson, Olufunmilayo44 Senior Vice President, Customer Operations, PECO2021 - Present
Senior Vice President, Chief Commercial Risk Officer, Exelon2017 - 2020
Gay, Anthony57 Vice President and General Counsel, PECO2019 - Present
Vice President, Governmental and External Affairs, PECO2016 - 2019
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BGE
NameAgePositionPeriod
Khouzami, Carim V.48 President, BGE2021 - Present
Chief Executive Officer, BGE2019 - Present
Senior Vice President & COO, Exelon Utilities2018 - 2019
Dickens, Derrick58 Senior Vice President and Chief Operating Officer, BGE2021 - Present
Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2020 - 2021
Vice President, Technical Services, BGE2016 - 2020
Vahos, David M.50 Senior Vice President, Chief Financial Officer and Treasurer, BGE2016 - Present
Núñez, Alexander G. 51 Senior Vice President, Governmental, Regulatory and External Affairs, BGE2021 - Present
Senior Vice President, Regulatory Affairs and Strategy, BGE2020 - 2021
Senior Vice President, Regulatory and External Affairs, BGE2016 - 2020
Galambos, Denise60 Senior Vice President, Customer Operations, BGE2021 - Present
Vice President, Utility Oversight, Exelon Utilities2020 - 2021
Vice President, Human Resources, BGE2018 - 2020
Ralph, David56 Vice President and General Counsel, BGE2021 - Present
Associate General Counsel, BGE2019 - 2021
Assistant General Counsel, Exelon2017 - 2019
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PHI, Pepco, DPL, and ACE
NameAgePositionPeriod
Anthony, J. Tyler58 President and Chief Executive Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2016 - 2021
Olivier, Tamla50 Senior Vice President and Chief Operating Officer, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Customer Operations, BGE2020 - 2021
Senior Vice President, Constellation NewEnergy, Inc.2016 - 2020
Barnett, Phillip S.59 Senior Vice President, Chief Financial Officer and Treasurer, PHI, Pepco, DPL, and ACE2018 - Present
Oddoye, Rodney46 Senior Vice President, Governmental, Regulatory and External Affairs, PHI, Pepco, DPL, and ACE2021 - Present
Senior Vice President, Governmental and External Affairs, BGE2020 - 2021
Vice President, Customer Operations, BGE2018 - 2020
Bancroft, Anne56 Vice President and General Counsel, PHI, Pepco, DPL, and ACE2021 - Present
Associate General Counsel, Exelon2017 - 2021
Bell-Izzard, Morlon57 Senior Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2021 - Present
Vice President, Customer Operations, PHI, Pepco, DPL, and ACE2019 - 2021
Director, Utility Performance Assessment, Exelon2016 - 2019
ITEM 1A.RISK FACTORS
Each of the Registrants operates in a complex market and regulatory environment that involves significant risks, many of which are beyond that Registrant’s direct control. Such risks, which could negatively affect one or more of the Registrants’ consolidated financial statements, fall primarily under the categories below:
Risks related to market and financial factors primarily include:
the demand for electricity, reliability of service, and affordability in the markets where the Utility Registrants conduct their business,
the ability of the Utility Registrants to operate their respective transmission and distribution assets, their ability to access capital markets, and the impacts on their results of operations, financial condition or liquidity/cash flows due to public health crises, epidemics or pandemics, such as COVID-19, and
emerging technologies and business models, including those related to climate change mitigation and transition to a low carbon economy.
Risks related to legislative, regulatory, and legal factors primarily include changes to, and compliance with, the laws and regulations that govern:
utility regulatory business models,
environmental and climate policy, and
tax policy.
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Risks related to operational factors primarily include:
changes in the global climate could produce extreme weather events, which could put the Registrant’s facilities at risk, and such changes could also affect the levels and patterns of demand for energy and related services,
the ability of the Utility Registrants to maintain the reliability, resiliency, and safety of their energy delivery systems, which could affect their ability to deliver energy to their customers and affect their operating costs, and
physical and cyber security risks for the Utility Registrants as the owner-operators of transmission and distribution facilities.
Risks related to the separation primarilyinclude:
challenges to achieving the benefits of separation and
performance by Exelon and Constellation under the transaction agreements, including indemnification responsibilities.
There may be further detailrisks and uncertainties that are not presently known or that are not currently believed to be material that could negatively affect the Registrants' consolidated financial statements in the future.
Risks Related to Market and Financial Factors
The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry (All Registrants).
Advancements in power generation technology, including commercial and residential solar generation installations and commercial micro turbine installations, are improving the cost-effectiveness of customer self-supply of electricity. Improvements in energy storage technology, including batteries and fuel cells, could also better position customers to meet their around-the-clock electricity requirements. Improvements in energy efficiency of lighting, appliances, equipment and building materials will also affect energy consumption by customers. Changes in power generation, storage, and use technologies could have significant effects on customer behaviors and their energy consumption.
These developments could affect levels of customer-owned generation, customer expectations, and current business models and make portions of the Utility Registrants' transmission and/or distribution facilities uneconomic prior to the end of their useful lives. Increasing pressure from both the private and public sectors to take actions to mitigate climate change could also push the speed and nature of this transition. These factors could affect the Registrants’ consolidated financial statements through, among other things, increased operating and maintenance expenses, increased capital expenditures, and potential asset impairment charges or accelerated depreciation over shortened remaining asset useful lives.
Market performance and other factors could decrease the value of employee benefit plan assets and could increase the related employee benefit plan obligations, which then could require significant additional funding (All Registrants).
Disruptions in the capital markets and their actual or perceived effects on particular businesses and the greater economy could adversely affect the value of the investments held within Exelon’s employee benefit plan trusts. The asset values are subject to market fluctuations and will yield uncertain returns, which could fall below Exelon's projected return rates. A decline in the market value of the pension and OPEB plan assets would increase the funding requirements associated with Exelon’s pension and OPEB plan obligations. Additionally, Exelon’s pension and OPEB plan liabilities are sensitive to changes in interest rates. As interest rates decrease, the liabilities increase, potentially increasing benefit costs and funding requirements. Changes in demographics, including increased numbers of retirements or changes in life expectancy assumptions or changes to Social Security or Medicare eligibility requirements could also increase the costs and funding requirements of the obligations related to the pension and OPEB plans. See Note 14Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information.
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The Registrants could be negatively affected by unstable capital and credit markets (All Registrants).
The Registrants rely on the capital markets, particularly for publicly offered debt, as well as the banking and commercial paper markets, to meet their financial commitments and short-term liquidity needs. Disruptions in the capital and credit markets in the United States or abroad could negatively affect the Registrants’ ability to access the capital markets or draw on their respective bank revolving credit facilities. The banks may not be able to meet their funding commitments to the Registrants if they experience shortages of capital and liquidity or if they experience excessive volumes of borrowing requests within a short period of time. The inability to access capital markets or credit facilities, and longer-term disruptions in the capital and credit markets because of uncertainty, changing or increased regulation, reduced alternatives, or failures of significant financial institutions could result in the deferral of discretionary capital expenditures, or require a reduction in dividend payments or other discretionary uses of cash. In addition, the Registrants have exposure to worldwide financial markets, including Europe, Canada, and Asia. Disruptions in these markets could reduce or restrict the Registrants’ ability to secure sufficient liquidity or secure liquidity at reasonable terms. As of December 31, 2022, approximately 23%, 10%, and 16% of the Registrants’ available credit facilities were with European, Canadian, and Asian banks, respectively. Additionally, higher interest rates may put pressure on the Registrants’ overall liquidity profile, financial health and impact financial results. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the credit facilities.
If any of the Registrants were to experience a downgrade in its credit ratings to below investment grade or otherwise fail to satisfy the credit standards in its agreements with its counterparties or regulatory financial requirements, it would be required to provide significant amounts of collateral that could affect its liquidity and could experience higher borrowing costs (All Registrants).
The Utility Registrants' operating agreements with PJM and PECO's, BGE's, and DPL's natural gas procurement contracts contain collateral provisions that are affected by their credit rating and market prices. If certain wholesale market conditions were to exist and the Utility Registrants were to lose their investment grade credit ratings (based on their senior unsecured debt ratings), they would be required to provide collateral in the forms of letters of credit or cash, which could have a material adverse effect upon their remaining sources of liquidity. PJM collateral posting requirements will generally increase as market prices rise and decrease as market prices fall. Collateral posting requirements for PECO, BGE, and DPL, with respect to their natural gas supply contracts, will generally increase as forward market prices fall and decrease as forward market prices rise. If the Utility Registrants were downgraded, they could experience higher borrowing costs as a result of the downgrade. In addition, changes in ratings methodologies by the agencies could also have an adverse negative impact on the ratings of the Utility Registrants.
The Utility Registrants conduct their respective businesses and operate under governance models and other arrangements and procedures intended to assure that the Utility Registrants are treated as separate, independent companies, distinct from Exelon and other Exelon subsidiaries in order to isolate the Utility Registrants from Exelon and other Exelon subsidiaries in the event of financial difficulty at Exelon or another Exelon subsidiary. These measures (commonly referred to as “ring-fencing”) could help avoid or limit a downgrade in the credit ratings of the Utility Registrants in the event of a reduction in the credit rating of Exelon. Despite these ring-fencing measures, the credit ratings of the Utility Registrants could remain linked, to some degree, to the credit ratings of Exelon. Consequently, a reduction in the credit rating of Exelon could result in a reduction of the credit rating of some or all of the Utility Registrants. A reduction in the credit rating of a Utility Registrant could have a material adverse effect on the Utility Registrant.
See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources — Credit Matters and Cash Requirements — Security Ratings for additional information regarding the potential impacts of credit downgrades on the Registrants’ cash flows.
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The impacts of significant economic downturns or increases in customer rates, could lead to decreased volumes delivered and increased expense for uncollectible customer balances (All Registrants).
The impacts of significant economic downturns on the Utility Registrants' customers and the related regulatory limitations on residential service terminations for the Utility Registrants, could result in an increase in the number of uncollectible customer balances and related expense. Further, increases in customer rates, including those related to increases in purchased power and natural gas prices, could result in declines in customer usage and lower revenues for the Utility Registrants that do not have decoupling mechanisms.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK for additional information on the Registrants’ credit risk.
Public health crises, epidemics, or pandemics, such as COVID-19 could negatively impact the Registrants' results (All Registrants).
COVID-19 disrupted economic activity in the Registrants’ respective markets and negatively affected the Registrants’ results of operations in 2020. However, the financial impacts were not material for the years ended December 31, 2021 and December 31, 2022, other than the 2022 impairment disclosure within Note 11 — Asset Impairments. The Registrants cannot predict the full extent of the impacts of COVID-19, which will depend on, among other things, the rate, and public perceptions of the effectiveness, of vaccinations and rate of resumption of business activity. In addition, any future widespread pandemic or other local or global health issue could adversely affect our vendors, competitors or customers and customer demand as well as the Registrants’ ability to operate their transmission and distribution assets. See Item 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - Executive Overview for additional information.
The Registrants could be negatively affected by the impacts of weather (All Registrants).
Weather conditions directly influence the demand for electricity and natural gas and affect the price of energy commodities. Temperatures above normal levels in the summer tend to increase summer cooling electricity demand and revenues, and temperatures below normal levels in the winter tend to increase winter heating electricity and gas demand and revenues. Moderate temperatures adversely affect the usage of energy and resulting operating revenues at PECO and DPL Delaware. Due to revenue decoupling, operating revenues from electric distribution at ComEd, BGE, Pepco, DPL Maryland, and ACE are not affected by abnormal weather.
Extreme weather conditions or damage resulting from storms could stress the Utility Registrants' transmission and distribution systems, communication systems, and technology, resulting in increased maintenance and capital costs and limiting each company’s ability to meet peak customer demand. First and third quarter financial results, in particular, are substantially dependent on weather conditions, and could make period comparisons less relevant.
Climate change projections suggest increases to summer temperature and humidity trends, as well as more erratic precipitation and storm patterns over the long-term in the areas where the Utility Registrants have transmission and distribution assets. The frequency in which weather conditions emerge outside the current expected climate norms could contribute to weather-related impacts discussed above.
Long-lived assets, goodwill, and other assets could become impaired (All Registrants).
Long-lived assets represent the single largest asset class on the Registrants’ statements of financial position. In addition, Exelon, ComEd, and PHI have material goodwill balances.
The Registrants evaluate the recoverability of the carrying value of long-lived assets to be held and used whenever events or circumstances indicating a potential impairment exist. Factors such as, but not limited to, the business climate, including current and future energy and market conditions, environmental regulation, and the condition of assets are considered.
ComEd and PHI perform an assessment for possible impairment of their goodwill at least annually or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the
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reporting units below their carrying amount. Regulatory actions or changes in significant assumptions, including discount and growth rates, utility sector market performance and transactions, projected operating and capital cash flows for ComEd’s, Pepco’s, DPL’s, and ACE’s business, and the fair value of debt, could potentially result in future impairments of Exelon’s, ComEd's, and PHI’s goodwill.
An impairment would require the Registrants to reduce the carrying value of the long-lived asset or goodwill to fair value through a non-cash charge to expense by the amount of the impairment. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Critical Accounting Policies and Estimates, Note 7 — Property, Plant, and Equipment, Note 11 — Asset Impairments, and Note 12 — Intangible Assets of the Combined Notes to the Consolidated Financial Statements for additional information on long-lived asset impairments and goodwill impairments.
The Registrants could incur substantial costs in the event of non-performance by third-parties under indemnification agreements, or when the Registrants have guaranteed their performance (All Registrants).
The Registrants have entered into various agreements with counterparties that require those counterparties to reimburse a Registrant and hold it harmless against specified obligations and claims. To the extent that any of these counterparties are affected by deterioration in their creditworthiness or the agreements are otherwise determined to be unenforceable, the affected Registrant could be held responsible for the obligations. Each of the Utility Registrants has transferred its former generation business to a third party and in each case the transferee has agreed to assume certain obligations and to indemnify the applicable Utility Registrant for such obligations. In connection with the restructurings under which ComEd, PECO, and BGE transferred their generating assets to Constellation, Constellation assumed certain of ComEd’s, PECO’s, and BGE's rights and obligations with respect to their former generation businesses. Further, ComEd, PECO, and BGE have entered into agreements with third parties under which the third-party agreed to indemnify ComEd, PECO, or BGE for certain obligations related to their respective former generation businesses that have been assumed by Constellation as part of the restructuring. If the third-party, Constellation, or the transferee of Pepco's, DPL's, or ACE’s generation facilities experienced events that reduced its creditworthiness or the indemnity arrangement became unenforceable, the applicable Utility Registrant could be liable for any existing or future claims. In addition, the Utility Registrants have residual liability under certain laws in connection with their former generation facilities.
The Registrants have issued indemnities to third parties regarding environmental or other matters in connection with purchases and sales of assets, including several of the Utility Registrants in connection with Constellation's absorption of their former generating assets. The Registrants could incur substantial costs to fulfill their obligations under these indemnities.
The Registrants have issued guarantees of the performance of third parties, which obligate the Registrants to perform if the third parties do not perform. In the event of non-performance by those third parties, the Registrants could incur substantial cost to fulfill their obligations under these guarantees.
Risks Related to Legislative, Regulatory, and Legal Factors
The Registrants' businesses are highly regulated and electric and gas revenue and earnings could be negatively affected by legislative and/or regulatory actions (All Registrants).
Substantial aspects of the Registrants' businesses are subject to comprehensive Federal or state legislation and/or regulation.
The Utility Registrants' consolidated financial statements are heavily dependent on the ability of the Utility Registrants to recover their costs for the retail purchase, transmission, and distribution of power and natural gas to their customers.
Fundamental changes in regulations or adverse legislative actions affecting the Registrants’ businesses would require changes in their business planning models and operations. The Registrants cannot predict when or whether legislative or regulatory proposals could become law or what their effect would be on the Registrants.
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Changes in the Utility Registrants' respective terms and conditions of service, including their respective rates, along with adoption of new rate structures and constructs, or establishment of new rate cases, are subject to regulatory approval proceedings and/or negotiated settlements that are at times contentious, lengthy, and subject to appeal, which lead to uncertainty as to the ultimate result, and which could introduce time delays in effectuating rate changes (All Registrants).
The Utility Registrants are required to engage in regulatory approval proceedings as a part of the process of establishing the terms and rates for their respective services, adoption of new rate structures and constructs or establishment of new rate cases. These proceedings typically involve multiple parties, including governmental bodies and officials, consumer advocacy groups, and various consumers of energy, who have differing concerns but who have the common objective of limiting rate increases or even reducing rates. Decisions are subject to appeal, potentially leading to additional uncertainty associated with the approval proceedings. The potential duration of such proceedings creates a risk that rates ultimately approved by the applicable regulatory body may not be sufficient for a Utility Registrant to recover its costs by the time the rates become effective. Established rates are also subject to subsequent prudency reviews by state regulators, whereby various portions of rates could be adjusted, subject to refund or disallowed, including recovery mechanisms for costs associated with the procurement of electricity or gas, credit losses, MGP remediation, smart grid infrastructure, and energy efficiency and demand response programs. In certain instances, the Utility Registrants could agree to negotiated settlements related to various rate matters, customer initiatives, or franchise agreements. These settlements are subject to regulatory approval. The ultimate outcome and timing of regulatory rate proceedings have a significant effect on the ability of the Utility Registrants to recover their costs or earn an adequate return. See Note 3Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information.
The Registrants could be subject to higher costs and/or penalties related to mandatory reliability standards, including the likely exposure of the Utility Registrants to the results of PJM’s RTEP and NERC compliance requirements (All Registrants).
The Utility Registrants as users, owners, and operators of the bulk power transmission system are subject to mandatory reliability standards promulgated by NERC and enforced by FERC. The standards are based on the functions that need to be performed to ensure the bulk power system operates reliably and are guided by reliability and market interface principles. Compliance with or changes in the reliability standards could subject the Registrants to higher operating costs and/or increased capital expenditures. In addition, the ICC, PAPUC, MDPSC, DCPSC, DEPSC, and NJBPU impose certain distribution reliability standards on the Utility Registrants. If the Utility Registrants were found in non-compliance with the Federal and state mandatory reliability standards, they could be subject to remediation costs as well as sanctions, which could include substantial monetary penalties.
The Registrants could incur substantial costs to fulfill their obligations related to environmental and other matters (All Registrants).
The Registrants are subject to extensive environmental regulation and legislation by local, state, and Federal authorities. These laws and regulations affect the way the Registrants conduct their operations and make capital expenditures including how they handle air and water emissions, hazardous and solid waste, and activities affecting surface waters, groundwater, and aquatic and other species. Violations of these requirements could subject the Registrants to enforcement actions, capital expenditures to bring existing facilities into compliance, additional operating costs for remediation and clean-up costs, civil penalties and exposure to third parties’ claims for alleged health or property damages, or operating restrictions to achieve compliance. In addition, the Registrants are subject to liability under these laws for the remediation costs for environmental contamination of property now or formerly owned by the Registrants and of property contaminated by hazardous substances they generated or released. Remediation activities associated with MGP operations conducted by predecessor companies are one component of such costs. Also, the Registrants are currently involved in several proceedings relating to sites where hazardous substances have been deposited and could be subject to additional proceedings in the future. See ITEM 1. BUSINESS — Environmental Matters and Regulation for additional information.
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The Registrants could be negatively affected by federal and state RPS and/or energy conservation legislation, along with energy conservation by customers (All Registrants).
Changes to current state legislation or the development of Federal legislation that requires the use of clean, renewable, and alternate fuel sources could significantly impact the Utility Registrants, especially if timely cost recovery is not allowed.
Federal and state legislation mandating the implementation of energy conservation programs that require the implementation of new technologies, such as smart meters and smart grid, could increase capital expenditures and could significantly impact the Utility Registrants consolidated financial statements if timely cost recovery is not allowed. These energy conservation programs, regulated energy consumption reduction targets, and new energy consumption technologies could cause declines in customer energy consumption and lead to a decline in the Registrants' earnings, if timely recovery is not allowed. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Renewable and Clean Energy Standards and "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
The Registrants could be negatively affected by challenges to tax positions taken, tax law changes, and the inherent difficulty in quantifying potential tax effects of business decisions. (All Registrants).
The Registrants are required to make judgments to estimate their obligations to taxing authorities, which includes general tax positions taken and associated reserves established. Tax obligations include, but are not limited to: income, real estate, sales and use, and employment-related taxes and ongoing appeal issues related to these tax matters. All tax estimates could be subject to challenge by the tax authorities. Additionally, earnings may be impacted due to changes in federal or local/state tax laws, and the inherent difficulty of estimating potential tax effects of ongoing business decisions. See Note 1Significant Accounting Policies and Note 13Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Legal proceedings could result in a negative outcome, which the Registrants cannot predict (All Registrants).
The Registrants are involved in legal proceedings, claims, and litigation arising out of their business operations. The material ones are summarized in Note 18Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Adverse outcomes in these proceedings could require significant expenditures, result in lost revenue, or restrict, or disrupt business activities.
The Registrants could be subject to adverse publicity and reputational risks, which make them vulnerable to negative customer perception and could lead to increased regulatory oversight or other consequences (All Registrants).
The Registrants could be the subject of public criticism. Adverse publicity of this nature could render public service commissions and other regulatory and legislative authorities less likely to view energy companies in a favorable light, and could cause those companies, including the Registrants, to be susceptible to less favorable legislative and regulatory outcomes, as well as increased regulatory oversight and more stringent legislative or regulatory requirements.
Exelon and ComEd have received requests for information related to an SEC investigation into their lobbying activities. The outcome of the investigations could have a material adverse effect on their reputation and consolidated financial statements (Exelon and ComEd).
On October 22, 2019, the SEC notified Exelon and ComEd that it had opened an investigation into their lobbying activities in the state of Illinois. Exelon and ComEd have cooperated fully, including by providing all information requested by the SEC, and intend to continue to cooperate fully and expeditiously with the SEC. The outcome of the SEC’s investigation cannot be predicted and could subject Exelon and ComEd to civil penalties, sanctions, or other remedial measures. Any of the foregoing, as well as the appearance of non-compliance with anti-corruption and anti-bribery laws, could have an adverse impact on Exelon’s and ComEd’s reputations or relationships with regulatory and legislative authorities, customers, and other stakeholders, as well as their consolidated financial
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Employeesstatements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
In January 2017,If ComEd violates its Deferred Prosecution Agreement announced on July 17, 2020, it could have an electionadverse effect on the reputation and consolidated financial statements of Exelon and ComEd (Exelon and ComEd).
On July 17, 2020, ComEd entered into a Deferred Prosecution Agreement (DPA) with the U.S. Attorney’s Office for the Northern District of Illinois (USAO) to resolve the USAO’s investigation into Exelon’s and ComEd’s lobbying activities in the State of Illinois. Exelon was held at BGE which resultednot made a party to the DPA and the investigation by the USAO into Exelon’s activities ended with no charges being brought against Exelon. Under the DPA, the USAO filed a single charge alleging that ComEd improperly gave and offered to give jobs, vendor subcontracts, and payments associated with those jobs and subcontracts for the benefit of the Speaker of the Illinois House of Representatives and the Speaker’s associates, with the intent to influence the Speaker’s action regarding legislation affecting ComEd’s interests. The DPA provides that the USAO will defer any prosecution of such charge and any other criminal or civil case against ComEd in union representationconnection with the matters identified therein for approximately 1,394 employees. BGEa three-year period subject to certain obligations of ComEd, including, but not limited to, the following: (i) payment to the U.S. Treasury of $200 million; (ii) continued full cooperation with the government’s investigation; and IBEW Local 410 are negotiating an initial agreement(iii) ComEd’s adoption and maintenance of remedial measures involving compliance and reporting undertakings as specified in the DPA. If ComEd is found to have breached the terms of the DPA, the USAO may elect to prosecute, or bring a civil action against, ComEd for conduct alleged in the DPA or known to the government, which could result in some modifications to wages, hoursfines or penalties and could have an adverse impact on Exelon’s and ComEd’s reputation or relationships with regulatory and legislative authorities, customers and other stakeholders, as well as their consolidated financial statements. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
Risks Related to Operational Factors
The Registrants are subject to risks associated with climate change (All Registrants).
The Registrants periodically perform analyses to better understand long-term projections of climate change and how those changes in the physical environments where they operate could affect their facilities and operations. The Registrants primarily operate in the Midwest and Mid-Atlantic of the United States, areas that historically have been prone to various types of severe weather events, and as such the Registrants have well-developed response and recovery programs based on these historical events. However, the Registrants’ physical facilities could be at greater risk of damage as changes in the global climate affect temperature and weather patterns, or be placed at greater risk of damage should climate changes result in more intense, frequent and extreme weather events, elevated levels of precipitation, sea level rise, increased surface water temperatures, and/or other effects. Over time, the Registrants are making additional investments to protect their facilities from physical climate-related risks.
In addition, changes to the climate may impact levels and patterns of demand for energy and related services, which could affect Registrants’ operations. Over time, the Registrants are making additional investments to adapt to changes in operational requirements to manage demand changes and customer expectations caused by climate change.
Climate Change risks include changes to the energy systems due to new technologies, changing customer expectations and/or voluntary GHG goals, as well as local, state, or federal regulatory requirements intended to reduce GHG emissions. The Registrants also periodically perform analyses of potential energy system transition pathways to reduce economy-wide GHG emissions to mitigate climate change. To the extent additional GHG reduction legislation and/or regulation becomes effective at the Federal and/or state levels, the Registrants could incur costs to further limit the GHG emissions from their operations or otherwise comply with applicable requirements. See ITEM 1. BUSINESS — Environmental Matters and Regulation — Climate Change and ITEM 1.A. "The Registrants are potentially affected by emerging technologies that could over time affect or transform the energy industry" above for additional information.
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The Utility Registrants' operating costs are affected by their ability to maintain the availability and reliability of their delivery and operational systems (All Registrants).
Failures of the equipment or facilities used in the Utility Registrants' delivery systems could interrupt the electric transmission and electric and natural gas delivery, which could result in a loss of revenues and an increase in maintenance and capital expenditures. Equipment or facilities failures can be due to several factors, including natural causes such as weather or information systems failure. Specifically, if the implementation of AMI, smart grid, or other technologies in the Utility Registrants' service territory fail to perform as intended or are not successfully integrated with billing and other information systems, or if any of the financial, accounting, or other data processing systems fail or have other significant shortcomings, the Utility Registrants' financial results could be negatively impacted. In addition, dependence upon automated systems could further increase the risk that operational system flaws or internal and/or external tampering or manipulation of those systems will result in losses that are difficult to detect.
Regulated utilities, which are required to provide service to all customers within their service territory, have generally been afforded liability protections against claims by customers relating to failure of service. Under Illinois law, however, ComEd could be required to pay damages to its customers in some circumstances involving extended outages affecting large numbers of its customers, which could be material.
The Registrants are subject to physical security and cybersecurity risks (All Registrants).
The Registrants face physical security and cybersecurity risks. Threat sources, including sophisticated nation-state actors, continue to seek to exploit potential vulnerabilities in the electric and natural gas utility industry, grid infrastructure, and other energy infrastructures, and these attacks and disruptions, both physical and cyber, are becoming increasingly sophisticated and dynamic. Continued implementation of advanced digital technologies increases the potentially unfavorable impacts of such attacks. Additionally, the U.S. government has warned that the Ukraine conflict may increase the risks of attacks targeting critical infrastructure in the United States.
A security breach of the Registrants' physical assets or information systems or those of the Registrants competitors, vendors, business partners and interconnected entities in RTOs and ISOs, or regulators could materially impact Registrants by, among other things, impairing the availability of electricity and gas distributed by Registrants and/or the reliability of transmission and distribution systems, impairing the availability of vendor services and materials that the Registrants rely on to maintain their operations, or by leading to the theft or inappropriate release of certain types of information, including critical infrastructure information, sensitive customer, vendor, or employee data, or other confidential data. The risk of these events and security breaches occurring continues to intensify, and while the Registrants have been, and will likely continue to be, subjected to physical and cyber-attacks, to date none have directly experienced a material breach or material disruption to its network or information systems or our operations. However, as such attacks continue to increase in sophistication and frequency, the Registrants may be unable to prevent all such attacks in the future.
If a significant security breach were to occur, the Registrants' reputation could be negatively affected, customer confidence in the Registrants or others in the industry could be diminished, or the Registrants could be subject to legal claims, loss of revenues, increased costs, or operations shutdown. Moreover, the amount and scope of insurance maintained against losses resulting from any such security breaches may not be sufficient to cover losses or otherwise adequately compensate for any disruptions to business that could result.
The Utility Registrants' deployment of smart meters throughout their service territories could increase the risk of damage from an intentional disruption of the system by third parties.
In addition, new or updated security regulations or unforeseen threat sources could require changes in current measures taken by the Registrants or their business operations and could adversely affect their consolidated financial statements.
The Registrants’ employees, contractors, customers, and the general public could be exposed to a risk of injury due to the nature of the energy industry (All Registrants).
Employees and contractors throughout the organization work in, and customers and the general public could be exposed to, potentially dangerous environments near the Registrants’ operations. As a result, employees,
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contractors, customers, and the general public are at some risk for serious injury, including loss of life. These risks include gas explosions, pole strikes, and electric contact cases.
Natural disasters, war, acts and threats of terrorism, pandemic, and other significant events could negatively impact the Registrants' results of operations, ability to raise capital and future growth (All Registrants).
The Utility Registrants' distribution and transmission infrastructures could be affected by natural disasters and extreme weather events, which could result in increased costs, including supply chain costs. An extreme weather event within the Utility Registrants’ service areas can also directly affect their capital assets, causing disruption in service to customers due to downed wires and poles or damage to other operating equipment.
The impact that potential terrorist attacks could have on the industry and the Registrants is uncertain. The Registrants face a risk that their operations would be direct targets or indirect casualties of an act of terror. Any retaliatory military strikes or sustained military campaign could affect their operations in unpredictable ways, such as changes in insurance markets and disruptions of fuel supplies and markets, particularly oil. Furthermore, these catastrophic events could compromise the physical or cybersecurity of the Registrants' facilities, which could adversely affect the Registrants' ability to manage their businesses effectively. Instability in the financial markets as a result of terrorism, war, natural disasters, pandemic, credit crises, recession, or other factors also could result in a decline in energy consumption or interruption of fuel or the supply chain. In addition, the implementation of security guidelines and measures has resulted in and is expected to continue to result in increased costs.
The Registrants could be significantly affected by the outbreak of a pandemic. Exelon has plans in place to respond to a pandemic. However, depending on the severity of a pandemic and the resulting impacts to workforce and other resource availability, the ability to operate Exelon's transmission and distribution assets could be adversely affected.
In addition, Exelon maintains a level of insurance coverage consistent with industry practices against property, casualty, and cybersecurity losses subject to unforeseen occurrences or catastrophic events that could damage or destroy assets or interrupt operations. However, there can be no assurance that the amount of insurance will be adequate to address such property and casualty losses.
The Registrants’ businesses are capital intensive, and their assets could require significant expenditures to maintain and are subject to operational failure or be impacted by lack of availability of critical parts, which could result in potential liability (All Registrants).
The Utility Registrants’ businesses are capital intensive and require significant investments in transmission and distribution infrastructure projects. Equipment, even if maintained in accordance with good utility practices, is subject to operational failure, including events that are beyond the Utility Registrants’ control, and could require significant expenditures to operate efficiently. Additionally, if critical parts are not available, it may impact the timing of execution of capital projects. The Registrants' consolidated financial statements could be negatively affected if they were unable to effectively manage their capital projects or raise the necessary capital, or if they are deemed liable for operational failure. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS — Liquidity and Capital Resources for additional information regarding the Registrants’ potential future capital expenditures.
The Utility Registrants' respective ability to deliver electricity, their operating costs, and their capital expenditures could be negatively impacted by transmission congestion and failures of neighboring transmission systems (All Registrants).
Demand for electricity within the Utility Registrants' service areas could stress available transmission capacity requiring alternative routing or curtailment of electricity usage. Also, insufficient availability of electric supply to meet customer demand could jeopardize the Utility Registrants' ability to comply with reliability standards and strain customer and regulatory agency relationships. As with all utilities, potential concerns over transmission capacity or generation facility retirements could result in PJM or FERC requiring the Utility Registrants to upgrade or expand their respective transmission systems through additional capital expenditures.
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PJM’s systems and operations are designed to ensure the reliable operation of the transmission grid and prevent the operations of one utility from having an adverse impact on the operations of the other utilities. However, service interruptions at other utilities may cause interruptions in the Utility Registrants’ service areas.
The Registrants' performance could be negatively affected if they fail to attract and retain an appropriately qualified workforce (All Registrants).
Certain events, such as the separation transaction, an employee strike, loss of employees, loss of contract resources due to a major event, and an aging workforce without appropriate replacements, could lead to operating challenges and increased costs for the Registrants. The challenges include lack of resources, loss of knowledge and a lengthy time period associated with skill development. In this case, costs, including costs for contractors to replace employees, productivity costs, and safety costs, could arise. The Registrants are particularly affected due to the specialized knowledge required of the technical and support employees for their transmission and distribution operations as well as areas where new technologies are pertinent.
The Registrants’ performance could be negatively affected by poor performance of third-party contractors that perform periodic or ongoing work (All Registrants).
All Registrants rely on third-party contractors to perform operations, maintenance, and construction work. Performance standards typically are included in all contractual obligations, but poor performance may impact the capital execution plan or operations, or have adverse financial or reputational consequences.
The Registrants could make acquisitions or investments in new business initiatives and new markets, which may not be successful or achieve the intended financial results (All Registrants).
The Utility Registrants face risks associated with their regulatory-mandated initiatives, such as smart grids and and broader beneficial electrification. These risks include, but are not limited to, cost recovery, regulatory concerns, cybersecurity, and obsolescence of technology. Such initiatives may not be successful.
Risks Related to the Separation (Exelon)
The separation may not achieve some or all of the benefits anticipated by Exelon and, following the separation, Exelon's common stock price may underperform relative to Exelon's expectations.
By separating the Utility Registrants and Constellation, Exelon created two publicly traded companies with the resources necessary to best serve customers and sustain long-term investment and operating excellence. The separate companies are expected to create value by having the strategic flexibility to focus on their unique customer, market and community priorities. However, the separation may not provide such results on the scope or scale that Exelon anticipates, and Exelon may not realize the anticipated benefits of the separation. Failure to do so could have a material adverse effect on Exelon's financial statements and its common stock price.
In connection with the separation into two public companies, Exelon and Constellation will indemnify each other for certain liabilities. If Exelon is required to pay under these indemnities to Constellation, Exelon's financial results could be negatively impacted. The Constellation indemnities may not be sufficient to hold Exelon harmless from the full amount of liabilities for which Constellation will be allocated responsibility, and Constellation may not be able to satisfy its indemnification obligations in the future.
Pursuant to the separation agreement and certain other agreements between Exelon and Constellation, each party will agree to indemnify the other for certain liabilities, in each case for uncapped amounts. Indemnities that Exelon may be required to provide Constellation are not subject to any cap, may be significant and could negatively impact its business. Third parties could also seek to hold Exelon responsible for any of the liabilities that Constellation has agreed to retain. Any amounts Exelon is required to pay pursuant to these indemnification obligations and other liabilities could require Exelon to divert cash that would otherwise have been used in furtherance of its operating business. Further, the indemnities from Constellation for Exelon's benefit may not be
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sufficient to protect Exelon against the full amount of such liabilities, and Constellation may not be able to fully satisfy its indemnification obligations.
Moreover, even if Exelon ultimately succeeds in recovering from Constellation any amounts for which Exelon is held liable, Exelon may be temporarily required to bear these losses. Each of these risks could negatively affect Exelon's business, results of operations and financial condition.
ITEM 1B.UNRESOLVED STAFF COMMENTS
All Registrants
None.
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ITEM 2.PROPERTIES
The Utility Registrants
The Utility Registrants' electric substations and a portion of their transmission rights are located on property that they own. A significant portion of their electric transmission and distribution facilities are located above or underneath highways, streets, other public places, or property that others own. The Utility Registrants believe that they have satisfactory rights to use those places or property in the form of permits, grants, easements, licenses, and franchise rights; however, they have not necessarily undertaken to examine the underlying title to the land upon which the rights rest.
Transmission and Distribution
The Utility Registrants’ high voltage electric transmission lines owned and in service at December 31, 2022 were as follows:
VoltageCircuit Miles
(Volts)ComEdPECOBGEPepcoDPLACE
765,00090
500,000(a)
18821610915
345,0002,678
230,000550352770472272
138,0002,2571355561586214
115,00070025
69,000177567662
___________
(a)    In addition, PECO, DPL, and ACE have an ownership interest located in Delaware and New Jersey. See Note 8 — Jointly Owned Electric Utility Plant of the Combined Notes to the Consolidated Financial Statements for additional information.
The Utility Registrants' electric distribution system includes the following number of circuit miles of overhead and underground lines:
Circuit MilesComEdPECOBGEPepcoDPLACE
Overhead35,38712,9659,1554,1306,0077,345
Underground32,6849,59017,9277,2076,5133,007
Gas
The following table presents PECO’s, BGE’s, and DPL’s natural gas pipeline miles at December 31, 2022:
PECOBGEDPL
Transmission(a)
91528
Distribution6,9907,5272,198
Service piping6,4796,7611,486
Total13,47814,4403,692
___________
(a)    DPL has a 10% undivided interest in approximately 8 miles of natural gas transmission mains located in Delaware, which are used by DPL for its natural gas operations and by 90% owner for distribution of natural gas to its electric generating facilities.

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The following table presents PECO’s, BGE’s, and DPL’s natural gas facilities:
RegistrantFacilityLocationStorage Capacity
(mmcf)
Send-out or Peaking Capacity
(mmcf/day)
PECOLNG FacilityWest Conshohocken, PA1,200160
PECOPropane Air PlantChester, PA10525
BGELNG FacilityBaltimore, MD1,056332
BGEPropane Air PlantBaltimore, MD55085
DPLLNG FacilityWilmington, DE25025
PECO, BGE, and DPL also own 30, 30, and 10 natural gas city gate stations and direct pipeline customer delivery points at various locations throughout their gas service territory, respectively.
First Mortgage and Insurance
The principal properties of ComEd, PECO, PEPCO, DPL, and ACE are subject to the lien of their respective Mortgages under which their respective First Mortgage Bonds are issued. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.

The Utility Registrants maintain property insurance against loss or damage to their properties by fire or other perils, subject to certain exceptions. For their insured losses, the Utility Registrants are self-insured to the extent that any losses are within the policy deductible or exceed the amount of insurance maintained. Any such losses could have a material adverse effect in the consolidated financial condition or results of operations of the Utility Registrants.

Exelon
Security Measures
The Registrants have initiated and work to maintain security measures. On a continuing basis, the Registrants evaluate enhanced security measures at certain critical locations, enhanced response and recovery plans, long-term design changes, and redundancy measures. Additionally, the energy industry has strategic relationships with governmental authorities to ensure that emergency plans are in place and critical infrastructure vulnerabilities are addressed in order to maintain the reliability of the country’s energy systems.

ITEM 3.LEGAL PROCEEDINGS
All Registrants
The Registrants are parties to various lawsuits and regulatory proceedings in the ordinary course of their respective businesses. For information regarding material lawsuits and proceedings, see Note 3 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements. Such descriptions are incorporated herein by these references.

ITEM 4.MINE SAFETY DISCLOSURES
Not Applicable
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PART II
(Dollars in millions, except per share data, unless otherwise noted)
ITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Exelon
Exelon’s common stock is listed on the Nasdaq (trading symbol: EXC). As of January 31, 2023, there were 994,126,931 shares of common stock outstanding and approximately 80,780 record holders of common stock.
Stock Performance Graph
The performance graph below illustrates a five-year comparison of cumulative total returns based on an initial investment of $100 in Exelon common stock, compared with the S&P 500 Stock Index and the S&P Utility Index, for the period 2018 through 2022. Cumulative total returns account for the separation of Constellation, as spin-off dividend is assumed to be reinvested as received.
This performance chart assumes:
$100 invested on December 31, 2017 in Exelon common stock, the S&P 500 Stock Index, and the S&P Utility Index; and
All dividends are reinvested.
exc-20221231_g1.jpg
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Value of Investment at December 31,
201720182019202020212022
Exelon Corporation$100.00$118.33$123.39$118.59$167.70$181.67
S&P 500$100.00$95.62$125.72$148.85$191.58$156.88
S&P Utilities$100.00$104.11$131.54$132.18$155.53$157.97
ComEd
As of January 31, 2023, there were 127,021,394 outstanding shares of common stock, $12.50 par value, of ComEd, of which 127,002,904 shares were indirectly held by Exelon. As of January 31, 2023, in addition to Exelon, there were 283 record holders of ComEd common stock. There is no established market for shares of the common stock of ComEd.
PECO
As of January 31, 2023, there were 170,478,507 outstanding shares of common stock, without par value, of PECO, all of which were indirectly held by Exelon.
BGE
As of January 31, 2023, there were 1,000 outstanding shares of common stock, without par value, of BGE, all of which were indirectly held by Exelon.
PHI
As of January 31, 2023, Exelon indirectly held the entire membership interest in PHI.
Pepco
As of January 31, 2023, there were 100 outstanding shares of common stock, $0.01 par value, of Pepco, all of which were indirectly held by Exelon.
DPL
As of January 31, 2023, there were 1,000 outstanding shares of common stock, $2.25 par value, of DPL, all of which were indirectly held by Exelon.
ACE
As of January 31, 2023, there were 8,546,017 outstanding shares of common stock, $3.00 par value, of ACE, all of which were indirectly held by Exelon.
All Registrants
Dividends
Under applicable Federal law, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE can pay dividends only from retained, undistributed, or current earnings. A significant loss recorded at ComEd, PECO, BGE, PHI, Pepco, DPL, or ACE may limit the dividends that these companies can distribute to Exelon.
ComEd has agreed, in connection with a financing arranged through ComEd Financing III, that ComEd will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debt securities issued to ComEd Financing III; (2) it defaults on its guarantee of the payment of distributions on the preferred trust securities of ComEd Financing III; or (3) an event of default occurs under the Indenture under which the subordinated debt securities are issued. No such event has occurred.
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PECO has agreed, in connection with financings arranged through PEC L.P. and PECO Trust IV, that PECO will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debentures which were issued to PEC L.P. or PECO Trust IV; (2) it defaults on its guarantee of the payment of distributions on the Series D Preferred Securities of PEC L.P. or the preferred trust securities of PECO Trust IV; or (3) an event of default occurs under the Indenture under which the subordinated debentures are issued. No such event has occurred.
BGE is subject to restrictions established by the MDPSC that prohibit BGE from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. No such event has occurred.
Pepco is subject to certain dividend restrictions established by settlements approved by the MDPSC and DCPSC that prohibit Pepco from paying a dividend on its common shares if (a) after the dividend payment, Pepco's equity ratio would be below 48% as calculated pursuant to the MDPSC's and DCPSC's ratemaking precedents, or (b) Pepco’s senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. No such event has occurred.
DPL is subject to certain dividend restrictions established by settlements approved by the DEPSC and MDPSC that prohibit DPL from paying a dividend on its common shares if (a) after the dividend payment, DPL's equity ratio would be below 48% as calculated pursuant to the DEPSC's and MDPSC's ratemaking precedents, or (b) DPL’s corporate issuer or senior unsecured credit rating, or its equivalent, is rated by any of the three major credit rating agencies below the generally accepted definition of investment grade. No such event has occurred.
ACE is subject to certain dividend restrictions established by settlements approved by the NJBPU that prohibit ACE from paying a dividend on its common shares if (a) after the dividend payment, ACE's common equity ratio would be below 48% as calculated pursuant to the NJBPU's ratemaking precedents, or (b) ACE's senior corporate issuer or senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. ACE is also subject to a dividend restriction which requires ACE to notify and obtain the prior approval of the NJBPU before dividends can be paid if its equity as a percent of its total capitalization, excluding securitization debt, falls below 30%. No such events have occurred.
Exelon’s Board of Directors approved an updated dividend policy for 2023. The 2023 quarterly dividend will be $0.36 per share.
As of December 31, 2022, Exelon had retained earnings of $4,597 million, ComEd had retained earnings of $2,030 million, PECO had retained earnings of $1,861 million, BGE had retained earnings of $2,075 million, and PHI had undistributed losses of $352 million.
The following table sets forth Exelon’s quarterly cash dividends per share paid during 2022 and 2021:
20222021
(per share)Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Fourth
Quarter
Third
Quarter
Second
Quarter
First
Quarter
Exelon$0.3375 $0.3375 $0.3375 $0.3375 $0.3825 $0.3825 $0.3825 $0.3825 
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The following table sets forth PHI's quarterly distributions and ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's quarterly common dividend payments:
20222021
(in millions)4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
4th
Quarter
3rd
Quarter
2nd
Quarter
1st
Quarter
ComEd144 145 145 144 127 127 126 127 
PECO100 99 100 100 85 85 84 85 
BGE74 75 75 76 73 73 72 74 
PHI125 230 293 102 98 191 333 81 
Pepco63 100 258 42 47 98 95 28 
DPL48 39 15 41 41 43 23 40 
ACE17 90 19 19 51 215 14 
First Quarter 2023 Dividend
On February 14, 2023, Exelon's Board of Directors declared a regular quarterly dividend of $0.36 per share on Exelon’s common stock for the first quarter of 2023. The dividend is payable on Friday, March 10, 2023, to shareholders of record of Exelon as of 5 p.m. Eastern time on Monday, February 27, 2023.
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ITEM 6.[RESERVED]
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Item 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
(Dollars in millions except per share data, unless otherwise noted)
Exelon
Executive Overview
Exelon is a utility services holding company engaged in the energy distribution and transmission businesses through ComEd, PECO, BGE, Pepco, DPL, and ACE.
Exelon has six reportable segments consisting of ComEd, PECO, BGE, Pepco, DPL, and ACE. See Note 1 — Significant Accounting Policies and Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information regarding Exelon's principal subsidiaries and reportable segments.
Exelon’s consolidated financial information includes the results of its seven separate operating subsidiary registrants, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE, which, along with Exelon, are collectively referred to as the Registrants. The following combined Management’s Discussion and Analysis of Financial Condition and Results of Operations is separately filed by Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE. However, none of the Registrants makes any representation as to information related solely to any of the other Registrants. For discussion of the Utility Registrants' year ended December 31, 2021 compared to the year ended December 31, 2020, refer to ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS in the 2021 Recast Form 10-K, which was filed with the SEC on June 30, 2022.
COVID-19. The Registrants have taken steps to mitigate the potential risks posed by the global outbreak (pandemic) of COVID-19. The Registrants provide a critical service to our customers which means that it is paramount that we keep our employees who operate our businesses safe and minimize unnecessary risk of exposure to the virus by taking extra precautions for employees who work in the field and in our facilities. The Registrants have implemented work from home policies where appropriate, and imposed travel limitations on employees.
The Registrants continue to implement strong physical and cyber-security measures to ensure that our systems remain functional in order to both serve our operational needs with a remote workforce and keep them running to ensure uninterrupted service to our customers.
There were no changes in internal control over financial reporting as a result of COVID-19 that materially affected, or are reasonably likely to materially affect, any of the Registrants’ internal control over financial reporting. See ITEM 9A. CONTROLS AND PROCEDURES for additional information.
There were no material impacts to Exelon from unfavorable economic conditions due to COVID-19 for the years ended December 31, 2022 and 2021, other than the 2022 impairment discussed below.
The Registrants assessed long-lived assets, goodwill, and investments for recoverability. Exelon and BGE recorded a pre-tax impairment charge of $48 million in 2022 as a result of COVID-19 impacts on office use. See Note 12 — Asset Impairments for additional information related to this impairment assessment. None of the other Registrants recorded material impairment charges in 2022 as a result of COVID-19. Additionally, there were no material impairment charges recorded in 2021 as a result of COVID-19.
The Registrants will continue to monitor developments affecting their workforce, customers, and suppliers and will take additional precautions that they determine to be necessary in order to mitigate the impacts. The Registrants cannot predict the full extent of the impacts of COVID-19, which will depend on, among other things, the rate, and public perceptions of the effectiveness, of vaccinations and rate of resumption of business activity.

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Financial Results of Operations
GAAP Results of Operations. The following table sets forth Exelon's GAAP consolidated Net income attributable to common shareholders from continuing operations and the Utility Registrants' Net income for the year ended December 31, 2022 compared to the same period in 2021. For additional information regarding the financial results for the years ended December 31, 2022 and 2021 see the discussions of Results of Operations by Registrant.
20222021Favorable (Unfavorable) Variance
Exelon2,054 1,616 $438 
ComEd917 742 175 
PECO576 504 72 
BGE380 408 (28)
PHI608 561 47 
Pepco305 296 
DPL169 128 41 
ACE148 146 
Other(a)
(427)(599)172 
__________
(a)Primarily includes eliminating and consolidating adjustments, Exelon’s corporate operations, shared service entities, and other financing and investing activities.
The separation of Constellation Energy Corporation, including Generation and its subsidiaries, meets the criteria for discontinued operations and as such, Generation's results of operations are presented as discontinued operations and have been excluded from Exelon's continuing operations for all periods presented. See Note 1 — Significant Accounting Policies and Note 2 — Discontinued Operations for additional information.
Accounting rules require that certain BSC costs previously allocated to Generation be presented as part of Exelon’s continuing operations as these costs do not qualify as expenses of the discontinued operations. Such costs are included in Other in the table above and were $28 million and $429 million on a pre-tax basis, for the years ended December 31, 2022 and 2021, respectively.
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021. Net income attributable to common shareholders from continuing operationsincreased by $438 million and diluted earnings per average common share from continuing operations increased to $2.08 in 2022 from $1.65 in 2021 primarily due to:
Higher electric distribution earnings and energy efficiency earnings from higher rate base and higher allowed ROE due to an increase in treasury rates at ComEd;
The favorable impacts of rate increases at PECO, BGE, and PHI;
Favorable impacts of decreased storm costs at PECO and BGE; and
Lower BSC costs presented in Exelon’s continuing operations, which were previously allocated to Generation but do not qualify as expenses of the discontinued operation per the accounting rules.
The increases were partially offset by:
An income tax expense recorded in connection with the separation primarily due to the long-term marginal state income tax rate change, the recognition of valuation allowances against the net deferred tax assets positions for certain standalone state filing jurisdictions, and nondeductible transaction costs partially offset by a one-time impact associated with a state tax benefit;
An adjustment at PECO to exclude one-time non-cash impacts associated with the remeasurement of deferred income taxes as a result of the reduction in Pennsylvania corporate income tax rate;
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Higher depreciation expense at PECO, BGE, and PHI;
Higher credit loss expense at PECO, BGE, and PHI;
Higher storm costs at PHI; and
Higher interest expense at PECO, BGE, PHI, and Exelon Corporate.
Adjusted (non-GAAP) Operating Earnings. In addition to Net income, Exelon evaluates its operating performance using the measure of Adjusted (non-GAAP) operating earnings because management believes it represents earnings directly related to the ongoing operations of the business. Adjusted (non-GAAP) operating earnings exclude certain costs, expenses, gains and losses, and other specified items. This information is intended to enhance an investor’s overall understanding of year-to-year operating results and provide an indication of Exelon’s baseline operating performance excluding items that are considered by management to be not directly related to the ongoing operations of the business. In addition, this information is among the primary indicators management uses as a basis for evaluating performance, allocating resources, setting incentive compensation targets, and planning and forecasting of future periods. Adjusted (non-GAAP) operating earnings is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.
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The following table provides a reconciliation between Net income attributable to common shareholders from continuing operations as determined in accordance with GAAP and Adjusted (non-GAAP) operating earnings for the year ended December 31, 2022 compared to 2021: 
For the Years Ended December 31,
20222021
(In millions, except per share data)Earnings per
Diluted Share
Earnings per
Diluted Share
Net Income Attributable to Common Shareholders from Continuing Operations$2,054 $2.08 $1,616 $1.65 
Mark-to-Market Impact of Economic Hedging Activities (net of taxes of $1 and $3, respectively)— — 
Asset Impairments (net of taxes of $10)(a)
38 0.04 — — 
Cost Management Program (net of taxes of $1)(b)
— — 0.01 
Asset Retirement Obligation (net of taxes of $2 and $1, respectively)(4)— — 
COVID-19 Direct Costs (net of taxes of $6)(c)
— — 14 0.01 
Acquisition Related Costs (net of taxes of $5)(d)
— — 15 0.02 
ERP System Implementation Costs (net of taxes of $0 and $4, respectively)(e)
— 13 0.01 
Separation Costs (net of taxes of $10 and $21, respectively)(f)
24 0.02 58 0.06 
Income Tax-Related Adjustments (entire amount represents tax expense)(g)
122 0.12 62 0.06 
Adjusted (non-GAAP) Operating Earnings$2,239 $2.27 $1,791 $1.83 
__________
Note:
Amounts may not sum due to rounding.
Unless otherwise noted, the income tax impact of each reconciling item between GAAP Net Income and Adjusted (non-GAAP) Operating Earnings is based on the marginal statutory federal and state income tax rates for each Registrant, taking into account whether the income or expense item is taxable or deductible, respectively, in whole or in part. The marginal statutory income tax rates for 2022 and 2021 ranged from 24.0% to 29.0%.

(a)Reflects costs related to the impairment of an office building at BGE, which are recorded in Operating and maintenance expense.
(b)Primarily represents reorganization costs related to cost management programs.
(c)Represents direct costs related to COVID-19 consisting primarily of costs to acquire personal protective equipment, costs for cleaning supplies and services, and costs to hire healthcare professionals to monitor the health of employees, which are recorded in Operating and maintenance expense.
(d)Reflects certain BSC costs related to the acquisition of EDF's interest in CENG, which was completed in the third quarter of 2021, that were historically allocated to Generation but are presented as part of continuing operations in Exelon's results as these costs do not qualify as expenses of the discontinued operations per the accounting rules.
(e)Reflects costs related to a multi-year ERP system implementation, which are recorded in Operating and maintenance expense.
(f)Represents costs related to the separation primarily comprised of system-related costs, third-party costs paid to advisors, consultants, lawyers, and other experts assisting in the separation, and employee-related severance costs, which are recorded in Operating and maintenance expense.
(g)In 2021, for PHI, primarily reflects the recognition of a valuation allowance against a deferred tax asset associated with Delaware net operating loss carryforwards due to a change in Delaware tax law. In 2021, for Corporate, reflects the adjustment to deferred income taxes due to changes in forecasted apportionment. In 2022, for PECO, primarily reflects an adjustment to exclude one-time non-cash impacts associated with the remeasurement of deferred income taxes as a result of the reduction in Pennsylvania corporate income tax rate. In 2022, for Corporate, in connection with the separation, Exelon recorded an income tax expense primarily due to the long-term marginal state income tax rate change, the recognition of valuation allowances against the deferred tax assets positions for certain standalone state filing jurisdictions, and nondeductible transaction costs partially offset by a one-time impact associated with a state tax benefit.

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Significant 2022 Transactions and Developments
Separation
On February 21, 2021, Exelon’s Board of Directors approved a plan to separate the Utility Registrants and Generation, creating two publicly traded companies (“the separation”). Exelon completed the separation on February 1, 2022. Constellation was newly formed and incorporated in Pennsylvania on June 15, 2021 for the purpose of separation and holds Generation. The separation represented a strategic shift that would have a major effect on Exelon’s operations and financial results. Accordingly, the separation meets the criteria for discontinued operations. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information on the separation and discontinued operations.
In connection with the separation, Exelon incurred separation costs impacting continuing operations of $34 million and $79 million on a pre-tax basis for the year ended December 31, 2022 and 2021, respectively, which are recorded in Operating and maintenance expense. These costs are excluded from Adjusted (non-GAAP) Operating Earnings. The separation costs are primarily comprised of system-related costs, third-party costs paid to advisors, consultants, lawyers, and other experts assisting in the separation, and employee-related severance costs.
Equity Securities Offering
On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering of 12.995 million shares of its common stock, no par value. The net proceeds were $563 million before expenses paid by Exelon. See Note 19 — Shareholders' Equity of the Combined Notes to Consolidated Financial Statements for additional information.
Utility Distribution Base Rate Case Proceedings
The Utility Registrants file base rate cases with their regulatory commissions seeking increases or decreases to their electric transmission and distribution, and gas distribution rates to recover their costs and earn a fair return on their investments. The outcomes of these regulatory proceedings impact the Utility Registrants’ current and future financial statements.
The following tables show the Utility Registrants’ completed and pending distribution base rate case proceedings in 2022. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on these and other regulatory proceedings.
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Completed Distribution Base Rate Case Proceedings
Registrant/JurisdictionFiling DateServiceRequested Revenue Requirement IncreaseApproved Revenue Requirement IncreaseApproved ROEApproval DateRate Effective Date
ComEd - IllinoisApril 16, 2021Electric$51 $46 7.36 %December 1, 2021January 1, 2022
April 15, 2022Electric199 199 7.85 %November 17, 2022January 1, 2023
PECO - PennsylvaniaMarch 30, 2021Electric246 132 N/ANovember 18, 2021January 1, 2022
March 31, 2022Natural Gas82 55 October 27, 2022January 1, 2023
BGE - MarylandMay 15, 2020 (amended September 11, 2020)Electric203 140 9.50 %December 16, 2020January 1, 2021
Natural Gas108 74 9.65 %
Pepco - District of ColumbiaMay 30, 2019 (amended June 1, 2020)Electric136 109 9.275 %June 8, 2021July 1, 2021
Pepco - MarylandOctober 26, 2020 (amended March 31, 2021)Electric104 52 9.55 %June 28, 2021June 28, 2021
DPL - MarylandSeptember 1, 2021 (amended December 23, 2021)Electric27 13 9.60 %March 2, 2022March 2, 2022
May 19, 2022Electric38 29 9.60 %December 14, 2022January 1, 2023
DPL - DelawareJanuary 14, 2022 (amended August 15, 2022)Natural Gas13 9.60 %October 12, 2022August 14, 2022
ACE - New JerseyDecember 9, 2020 (amended February 26, 2021)Electric67 41 9.60 %July 14, 2021January 1, 2022

Pending Distribution Base Rate Case Proceedings
Registrant/JurisdictionFiling DateServiceRequested Revenue Requirement IncreaseRequested ROEExpected Approval Timing
ComEd - IllinoisJanuary 17, 2023Electric$1,472 10.50% to 10.65%Fourth quarter of 2023
DPL - DelawareDecember 15, 2022Electric60 10.50 %Second quarter of 2024
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Transmission Formula Rates
The following total increases/(decreases) were included in the Utility Registrants' 2022 annual electric transmission formula rate updates. All rates are effective June 1, 2022 to May 31, 2023, subject to review by interested parties pursuant to review protocols of each Utility Registrants' tariff. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
RegistrantInitial Revenue Requirement IncreaseAnnual Reconciliation (Decrease) IncreaseTotal Revenue Requirement IncreaseAllowed Return on Rate BaseAllowed ROE
ComEd$24 $(24)$— 8.11 %11.50 %
PECO23 16 39 7.30 %10.35 %
BGE25 (4)16 7.30 %10.50 %
Pepco16 15 31 7.60 %10.50 %
DPL11 7.09 %10.50 %
ACE21 13 34 7.18 %10.50 %
Pennsylvania Corporate Income Tax Rate Change
On July 8, 2022, Pennsylvania enacted House Bill 1342, which will permanently reduce the corporate income tax rate from 9.99% to 4.99%. The tax rate will be reduced to 8.99% for the 2023 tax year. Starting with the 2024 tax year, the rate is reduced by 0.50% annually until it reaches 4.99% in 2031. As a result of the rate change, in the third quarter of 2022, Exelon and PECO recorded a one-time decrease to deferred income taxes of $390 million with a corresponding decrease to the deferred income taxes regulatory asset of $428 million for the amounts that are expected to be settled through future customer rates and an increase to income tax expense of $38 million (net of federal taxes), which was excluded from Exelon's Adjusted (non-GAAP) Operating Earnings. The tax rate decrease is not expected to have a material ongoing impact to Exelon’s and PECO’s financial statements. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Inflation Reduction Act
On August 16, 2022, the Inflation Reduction Act (IRA) was signed into law. The bill extends tax benefits for renewable technologies like solar and wind, and it creates new tax benefits for alternative clean energy sources like nuclear and hydrogen and it focuses on energy efficiency, electrification, and equity. However, the bill also implements a new 15.0% corporate minimum tax based on modified GAAP net income. Exelon estimates the IRA could result in an increase in cash taxes for Exelon of approximately $200 million per year starting in 2023. Exelon is continuing to assess the impacts of the IRA on the financial statements and will update estimates based on guidance to be issued by the U.S. Treasury in the future.
Asset Impairment
In the third quarter of 2022, a review of the impacts of COVID-19 on office use resulted in plans to cease the renovation and dispose of an office building at BGE before the asset was placed into service. BGE determined that the carrying value was not recoverable and that its fair value was less than carrying value. As a result, Exelon and BGE recorded a pre-tax impairment charge of $48 million in 2022, which was excluded from Exelon's Adjusted (non-GAAP) Operating Earnings. See Note 11 — Asset Impairments of the Combined Notes to Consolidated Financial Statements for additional information.
ComEd's FERC Audit
The Registrants are subject to periodic audits and investigations by FERC. FERC’s Division of Audits and Accounting initiated a nonpublic audit of ComEd in May 2021 evaluating ComEd’s compliance with (1) approved terms, rates and conditions of employment. Noits transmission formula rate mechanism; (2) accounting requirements of the Uniform System of Accounts; (3) reporting requirements of the FERC Form 1; and (4) the requirements for record retention. The audit covered the period from January 1, 2017 through August 31, 2022. On January 17, 2023, ComEd was provided with information on a series of potential findings, including concerning ComEd's
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methodology regarding the allocation of certain overhead costs to capital under FERC regulations. The final outcome and resolution of the findings or of the audit itself cannot be predicted and the results, while not reasonably estimable at this time, could be material to the Exelon and ComEd financial statements. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Other Key Business Drivers and Management Strategies

Utility Rates and Rate Proceedings
The Utility Registrants file rate cases with their regulatory commissions seeking increases or decreases to their electric transmission and distribution, and gas distribution rates to recover their costs and earn a fair return on their investments. The outcomes of these regulatory proceedings impact the Utility Registrants’ current and future results of operations, cash flows, and financial positions. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on these regulatory proceedings.
Legislative and Regulatory Developments
City of Chicago Franchise Agreement
The current ComEd Franchise Agreement with the City of Chicago (the City) has been in force since 1992. The Franchise Agreement grants rights to use the public right of way to install, maintain, and operate the wires, poles, and other infrastructure required to deliver electricity to residents and businesses across the City. The Franchise Agreement became terminable on one year notice as of December 31, 2020. It now continues in effect indefinitely unless and until either party issues a notice of termination, effective one year later, or it is replaced by mutual agreement with a new franchise agreement between ComEd and the City. If either party terminates and no new agreement is reached between the parties, the parties could continue with ComEd providing electric services within the City with no franchise agreement in place. The City also has an option to terminate and purchase the ComEd system (“municipalize”), which also requires one year notice. Neither party has issued a notice of termination at this time, the City has not exercised its municipalization option, and no new agreement has been finalizedbecome effective. Accordingly, the 1992 Franchise Agreement remains in effect at this time. In April 2021, the City invited interested parties to daterespond to a Request for Information (RFI) regarding the franchise for electricity delivery. Final responses to the RFI were due on July 30, 2021, however, on July 29, 2021, the City chose to extend the final submission deadline to September 30, 2021. ComEd submitted its response to the RFI by the due date. However, the City did not proceed to issue an RFP. Since that time, ComEd and managementthe City continued to negotiate and have arrived at a proposed Chicago Franchise Agreement (CFA) and an Energy and Equity Agreement (EEA). These agreements together are intended to grant ComEd the right to continue providing electric utility services using public ways within the City of Chicago, and to create a new non-profit entity to advance energy and energy-related equity projects. On February 1, 2023, the proposed CFA and EEA were introduced to the City Council. The proposed CFA and EEA remain subject to approval by the City Council and the Exelon Board.
While Exelon and ComEd cannot predict the ultimate outcome of such negotiations. In April 2017, Exelon Nuclear Security successfully ratifiedthese processes, fundamental changes in the agreements or other adverse actions affecting ComEd’s business in the City would require changes in their business planning models and operations and could have a material adverse impact on Exelon’s and ComEd’s consolidated financial statements. If the City were to disconnect from the ComEd system, ComEd would seek full compensation for the business and its CBAassociated property taken by the City, as well as for all damages resulting to ComEd and its system. ComEd would also seek appropriate compensation for stranded costs with FERC.
Infrastructure Investment and Jobs Act
On November 15, 2021, President Biden signed the SPFPA Local 238 at Quad Cities$1.2 trillion Infrastructure Investment and Jobs Act (IIJA) into law. IIJA provides for approximately $550 billion in new federal spending. Categories of funding include funding for a variety of infrastructure needs, including but not limited to: (1) power and grid reliability and resilience, (2) resilience for cybersecurity to anaddress critical infrastructure needs, and (3) electric vehicle charging infrastructure for alternative fuel corridors. Federal agencies are developing guidelines to implement spending programs under IIJA. The time needed to develop these guidelines will vary with some limited program applications opened as early as the first quarter of 2022. The Registrants are continuing to analyze the legislation and considering possible opportunities to apply for funding, either directly or in potential collaborations with state and/or local
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agencies and key stakeholders. The Registrants cannot predict the ultimate timing and success of securing funding from programs under IIJA.
ComEd and BGE applied for the Middle Mile Grant (MMG), which establishes and funds construction, improvement, or acquisition of middle mile broadband infrastructure which creates high-speed internet services. The MMG addresses inequitable broadband access by expansion and extension of the middle mile infrastructure in underserved communities. ComEd and BGE cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
In December 2022, Exelon and the Utility Registrants submitted 14 concept papers in response to the Department of Energy's Grid Resilience and Innovation Partnership (GRIP) program. These concept papers are focused on delivering grid resilience and grid benefits to customers and communities across the Exelon footprint. Eleven of the fourteen opportunities received letters of encouragement to submit applications due in the first half of 2023. Exelon cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
Exelon and the Utility Registrants are supporting three years. In June 2017,different Regional Clean Hydrogen Hub opportunities, covering all five states that Exelon Nuclear Security successfully ratified its CBA withoperates in plus Washington D.C., that have submitted concept papers to the UGSOA Local 12 at LimerickDepartment of Energy. All three opportunities have received letters of encouragement from Department of Energy to an extensionsubmit applications due in April 2023. The program will create networks of three years.hydrogen producers, consumers, and local connective infrastructure to accelerate the use of hydrogen as a clean energy carrier that can deliver or store energy. Exelon cannot predict if their applications will be approved as filed or the timing of receiving any funds if they are awarded a grant.
Critical Accounting Policies and Estimates
The preparation of financial statements in conformity with GAAP requires that management apply accounting policies and make estimates and assumptions that affect results of operations and the amounts of assets and liabilities reported in the financial statements. Management discusses these policies, estimates and assumptions with its Accounting and Disclosure Governance Committee on a regular basis and provides periodic updates on management decisions to the Audit Committee of the Exelon Board of Directors. Management believes that the accounting policies described below require significant judgment in their application or incorporate estimates and assumptions that are inherently uncertain and that may change in subsequent periods. Additional discussion ofinformation on the application of these accounting policies can be found in the Combined Notes to Consolidated Financial Statements.
Nuclear Decommissioning Asset Retirement Obligations (Exelon and Generation)
Generation’s ARO associated with decommissioning its nuclear units was $9.7 billion at December 31, 2017. The authoritative guidance requires that Generation estimate its obligation for the future decommissioning of its nuclear generating plants. To estimate that liability, Generation uses an internally-developed, probability-weighted, discounted cash flow model which, on a unit-by-unit basis, considers multiple decommissioning outcome scenarios.
As a result of recent nuclear plant retirements in the industry, nuclear operators and third-party service providers are obtaining more information about costs associated with decommissioning activities. At the same time, regulators are gaining more information about decommissioning activities which could result in changes to existing decommissioning requirements. In addition, as more nuclear plants are retired, it is possible that technological advances will be identified that could create efficiencies and lead to a reduction in decommissioning costs. The availability of decommissioning trust funds could impact the timing of the decommissioning activities. Additionally, certain factors such as changes in regulatory requirements during plant operations or the profitability of a nuclear plant could impact the timing of plant retirements. These factors could result in material changes to Generation’s current estimates as more information becomes available and could change the timing of plant retirements and the probability assigned to the decommissioning outcome scenarios.

The nuclear decommissioning obligation is adjusted on a regular basis due to the passage of time and revisions to the key assumptions for the expected timing and/or estimated amounts of the future undiscounted cash flows required to decommission the nuclear plants, based upon the following methodologies and significant estimates and assumptions:
Decommissioning Cost Studies
Generation uses unit-by-unit decommissioning cost studies to provide a marketplace assessment of the expected costs (in current year dollars) and timing of decommissioning activities, which are validated by comparison to current decommissioning projects within the industry and other estimates. Decommissioning cost studies are updated, on a rotational basis, for each of Generation’s nuclear units at least every five years, unless circumstances warrant more frequent updates (such as a change in assumed operating life for a nuclear plant). As part of the annual cost study update process, Generation evaluates newly assumed costs or substantive changes in previously assumed costs to determine if the cost estimate impacts are sufficiently material to warrant application of the updated estimates to the AROs across the nuclear fleet outside of the normal five-year rotating cost study update cycle.
Cost Escalation Factors
Generation uses cost escalation factors to escalate the decommissioning costs from the decommissioning cost studies discussed above through the assumed decommissioning period for each of the units. Cost escalation studies, updated on an annual basis, are used to determine escalation factors, and are based on inflation indices for labor, equipment and materials, energy, LLRW disposal and other costs. All of the nuclear AROs are adjusted each year for the updated cost escalation factors.
Probabilistic Cash Flow Models
Generation’s probabilistic cash flow models include the assignment of probabilities to various scenarios for decommissioning cost levels, decommissioning approaches, and timing of plant shutdown on a unit-by-unit basis. Probabilities assigned to cost levels include an assessment of the likelihood of costs 20% higher (high-cost scenario) or 15% lower (low-cost scenario) than the base cost scenario. Probabilities are also assigned to four different decommissioning approaches.
1.DECON - a method of decommissioning shortly after the cessation of operation in which the equipment, structures, and portions of a facility and site containing radioactive contaminants are removed and safely buried in a LLRW landfill or decontaminated to a level that permits property to be released for unrestricted use. Spent fuel is transferred to dry cask storage as soon as possible until DOE acceptance for disposal.
2.Delayed DECON - similar to the DECON scenario but with a delay to allow for spent fuel to be removed from the site prior to onset of decommissioning activities. Spent fuel is retained in existing location (either wet or dry storage) until DOE acceptance for disposal.
3.Shortened SAFSTOR - similar to the DECON scenario but with generally a 30-year delay prior to onset of decommissioning activities. Spent fuel is transferred to dry cask storage as soon as possible until DOE acceptance for disposal.
4.
SAFSTOR - a method of decommissioning in which the nuclear facility is placed and maintained in such condition that the nuclear facility can be safely stored and subsequently decontaminated to levels that permit release for unrestricted use generally within 60 years after cessation of operations. Spent fuel is transferred to dry cask storage as soon as possible until DOE acceptance for disposal.

The actual decommissioning approach selected once a nuclear facility is shutdown will be determined by Generation at the time of shutdown and may be influenced by multiple factors including the funding status of the nuclear decommissioning trust fund at the time of shutdown.
The assumed plant shutdown timing scenarios include the following four alternatives: (1) the probability of operating through the original 40-year nuclear license term, (2) the probability of operating through an extended 60-year nuclear license term (regardless of whether such 20-year license extension has been received for each unit), (3) the probability of a second, 20-year license renewal for some nuclear units, and (4) the probability of early plant retirement for certain sites due to changing market conditions and regulatory environments. The successful operation of nuclear plants in the U.S. beyond the initial 40-year license terms has prompted the NRC to consider regulatory and technical requirements for potential plant operations for an 80-year nuclear operating term. As power market and regulatory environment developments occur, Generation evaluates and incorporates, as necessary, the impacts of such developments into its nuclear ARO assumptions and estimates.
Generation’s probabilistic cash flow models also include an assessment of the timing of DOE acceptance of SNF for disposal. Generation currently assumes DOE will begin accepting SNF in 2030. The SNF acceptance date assumption is based on management’s estimates of the amount of time required for DOE to select a site location and develop the necessary infrastructure for long-term SNF storage. For more information regarding the estimated date that DOE will begin accepting SNF, see Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
License Renewals
Except for its Clinton unit, Generation has successfully obtained initial 20-year operating license renewal extensions (i.e., extending the total license term to 60 years) for all of its operating nuclear units (including the two Salem units co-owned by Generation, but operated by PSEG). Generation intends to apply for an initial license renewal for the Clinton unit. Clinton depreciation provisions are based on 2027 which is the last year of the Illinois Zero Emissions Standard. No prior Generation initial license extension application has been denied. Generation intends to apply for a second 20-year renewal for the Peach Bottom Units 2 and 3.
Discount Rates
The probability-weighted estimated future cash flows for the various assumed scenarios are discounted using credit-adjusted, risk-free rates (CARFR) applicable to the various businesses in which each of the nuclear units originally operated. The authoritative guidance required Generation to establish an ARO at fair value at the time of the initial adoption. Subsequent to the initial adoption, the ARO is adjusted for changes to estimated costs, timing of future cash flows and modifications to decommissioning assumptions, as described above. The ARO is not required or permitted to be re-measured for changes in the CARFR that occur in isolation. Increases in the ARO as a result of upward revisions in estimated undiscounted cash flows are considered new obligations and are measured using a current CARFR as the increase creates a new cost layer within the ARO. Any decrease in the estimated undiscounted future cash flows relating to the ARO are treated as a modification of an existing ARO cost layer and, therefore, is measured using the average historical CARFR rates used in creating the initial ARO cost layers. If Generation’s future nominal cash flows associated with the ARO were to be discounted at current prevailing CARFR, the obligation would increase from approximately $9.7 billion to approximately $10.3 billion.
To illustrate the significant impact that changes in the CARFR, when combined with changes in projected amounts and expected timing of cash flows, can have on the valuation of the ARO: i) had Generation used the 2016 CARFR rather than the 2017 CARFR in performing its annual 2017 ARO update, Generation would have increased the ARO by an additional $10 million; and ii) if the CARFR

used in performing the annual 2017 ARO update are increased by 50 basis points or decreased by 50 basis points, the ARO would have decreased by $170 million and increased by $30 million, respectively, as compared to the actual decrease of $69 million.
ARO Sensitivities
Changes in the assumptions underlying the ARO could materially affect the decommissioning obligation. The impact to the ARO of a change in any one of these assumptions is highly dependent on how the other assumptions may correspondingly change.
The following table illustrates the effects of changing certain ARO assumptions while holding all other assumptions constant (dollars in millions):
Change in ARO AssumptionIncrease (Decrease) to ARO at
December 31, 2017
Cost escalation studies 
Uniform increase in escalation rates of 50 basis points$1,690
Probabilistic cash flow models 
Increase the estimated costs to decommission the nuclear plants by 10 percent700
Increase the likelihood of the DECON scenario by 10 percentage points and decrease the likelihood of the SAFSTOR scenario by 10 percentage points500
Shorten each unit's probability weighted operating life assumption by 10%(a)
660
Extend the estimated date for DOE acceptance of SNF to 2035130
__________
(a)Timing sensitivity does not include any sites for which an early plant retirement has been announced.
For more information regarding accounting for nuclear decommissioning obligations, see Note 1 — Significant Accounting Policies, Note 8 — Early Nuclear Plant Retirements and Note 15 — Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements.

Goodwill (Exelon, Generation, ComEd, PHI and DPL)PHI)
As of December 31, 2017,2022, Exelon’s $6.7$6.6 billion carrying amount of goodwill primarily consists of $2.6 billion at ComEd relating to the acquisition of ComEd in 2000 as part of the formation of Exelon and $4 billion at PHI pursuant to Exelon's acquisition of PHI in the first quarter of 2016. DPL has $8 million of goodwill as of December 31, 2017, related to its 1995 acquisition of the Conowingo Power Company. Generation also has goodwill of $47 million as of December 31, 2017. Under the provisions of the authoritative guidance for goodwill, thesePHI. These entities are required to perform an assessment for possible impairment of their goodwill at least annually or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting units below their carrying amount. Under the authoritative guidance, aA reporting unit is an operating segment or one level below an operating segment (known as a component) and is the level at which goodwill is testedassessed for impairment. A component of an operating segment is a reporting unit if the component constitutes a business for which discrete financial information is available and its operating results are regularly reviewed by segment management. ComEd has a single operating segment and reporting unit. PHI’s operating segments and reporting units are Pepco, DPL, and ACE. See Note 255 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information. There is no level below these operating segments for which operating results are regularly reviewed by segment management. Therefore, the ComEd, Pepco, DPLExelon's and ACE operating segments are also considered reporting units for goodwill impairment testing purposes. Exelon’s and ComEd’s $2.6 billion of goodwill has been assigned entirely to the ComEd reporting unit, while Exelon’sunit. Exelon's and PHI’s $4 billion of goodwill has been assigned to the Pepco, DPL, and ACE reporting units in the amounts of $1.7$2.1 billion, $1.1$1.4 billion, and $1.2$0.5 billion, respectively. DPL's $8 millionSee Note 12 — Intangible Assets of goodwill is assigned entirelythe Combined Notes to the DPL reporting unit.Consolidated Financial Statements for additional information.
Entities assessing goodwill for impairment have the option of first performing a qualitative assessment to determine whether a quantitative assessment is necessary. In performing aAs part of the qualitative assessment, entities should assess,assessments, Exelon, ComEd, and PHI evaluate, among other things, macroeconomicmanagement's best estimate of projected operating and capital cash flows for their businesses, outcomes of recent regulatory proceedings, changes in certain market conditions, industryincluding the discount rate and market considerations including regulatoryregulated utility peer EBITDA multiples, and political developments, overall financial performance, cost factors, and entity-specific conditions and events. If an entity determines, on the basis of qualitative factors, that the fair value of the reporting unit is more likely than not greater than the carrying amount, no further testing is required. If an entity bypasses the qualitative assessment, or performs the qualitative assessment but determines that it is more likely than not that its fair value is less than its carrying amount, apassing margin from their last quantitative two-step, fair value-based test isassessments performed.
Exelon’s, ComEd’s and PHI’s accounting policy is to perform a quantitative test of goodwill at least once every three years, or more frequently if events occur or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount. The first step in the quantitative test compares the fair value of the reporting unit to its carrying amount, including goodwill. If the carrying amount of the reporting unit exceeds its fair value, the second step is performed. The second step requires an allocation of fair value to the individual assets and liabilities using purchase price allocation authoritative guidance in order to determine the implied fair value of goodwill. If the implied fair value of goodwill is less than the carrying amount, an impairment loss is recorded as a reduction to goodwill and a charge to operating expense. In January 2017, the FASB issued a new standard, effective January 1, 2020 with early adoption permitted, that simplifies the accounting for goodwill impairment by removing the second step of the test and, instead, measuring goodwill impairment at the amount by which a reporting unit's carrying value exceeds its fair value (currently the first step in the test). Exelon, Generation, ComEd, PHI and DPL have not determined whether to early adopt this standard.
Application of the goodwill impairment testassessment requires management judgment, including the identification of reporting units and determining the fair value of the reporting unit, which management estimates using a weighted combination of a discounted cash flow analysis and a market multiples analysis. Significant assumptions used in these fair value analyses include discount and growth rates,

utility sector market
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performance and transactions, and projected operating and capital cash flows for ComEd’s, Pepco's, DPL's, and ACE's businesses and the fair value of debt. In applying the second step (if needed), management must estimate the fair value of specific assets and liabilities of the reporting unit.
For their 2017 annual goodwill impairment assessments, Exelon, ComEd, PHI and DPL each qualitatively determined that it was more likely than not that the fair value of their respective reporting unit exceeded their respective carrying value. Therefore, ComEd, PHI and DPL did not perform quantitative assessments. As part of their qualitative assessments, ComEd, PHI and DPL evaluated, among other things, management's best estimate of projected operating and capital cash flows for their businesses, outcomes of recent regulatory proceedings, changes in certain market conditions, including the discount rate and regulated utility peer EBITDA multiples, and the passing margin from their last quantitative assessments performed as of November 1, 2016.
ComEd, PHI and DPL performed quantitative tests as of November 1, 2016, for their 2016 annual goodwill impairment assessments. The first step of the tests comparing the estimated fair values of the ComEd, Pepco, DPL and ACE reporting units to their carrying values, including goodwill, indicated no impairments of goodwill; therefore, no second steps were required.
While the 2022 annual assessments indicated no impairments, certain assumptions used to estimate reporting unit fair valuesin the assessment are highly sensitive to changes. Adverse regulatory actions or changes in significant assumptions could potentially result in future impairments of Exelon’s, ComEd's, PHI’s or DPL’sPHI’s goodwill, which could be material. Based on the results of the annual goodwill tests performed as of November 1, 2016, the estimated fair values of the ComEd, Pepco, DPL and ACE reporting units would have needed to decrease by more than 30%, 10%, 10% and 10%, respectively, for Exelon, ComEd and PHI to have failed the first step of their respective impairment tests. For the $8 million of goodwill recorded at DPL related to DPL’s 1995 acquisition of the Conowingo Power Company, the fair value of the DPL reporting unit would have needed to decrease by more than 50% for DPL to fail the first step of the impairment test.
See Note 1 — Significant Accounting Policies and Note 1012 — Intangible Assets and Note 14 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
Purchase Accounting (Exelon, Generation and PHI)
In January 2017, the FASB issued a new standard, effective January 1, 2018 with early adoption permitted, that clarifies the definition of a business with the objective of addressing whether acquisitions/dispositions should be accounted for as acquisitions/dispositions of assets or as acquisitions/dispositions of businesses. The Registrants did not early adopt this new standard. See Note 1-Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for further information.
In accordance with authoritative guidance, the assets acquired and liabilities assumed in an acquired business are recorded at their estimated fair values on the date of acquisition. The difference between the purchase price amount and the net fair value of assets acquired and liabilities assumed is recognized as goodwill on the balance sheet if the purchase price exceeds the estimated net fair value or as a bargain purchase gain on the income statement if the purchase price is less than the estimated net fair value. Determining the fair value of assets acquired and liabilities assumed requires management’s judgment, often utilizes independent valuation experts and involves the use of significant estimates and assumptions with respect to the timing and amounts of future cash inflows and outflows, discount rates, market prices and asset lives, among other items. The judgments made in the determination of the estimated fair value assigned to the assets acquired and liabilities assumed, as well as the estimated useful life of each asset and the duration of each liability, could significantly impact the financial statements in periods after acquisition, such as through depreciation and amortization expense. Authoritative guidance provides that the allocation of the purchase price may be modified up to one year after the

acquisition date as more information is obtained about the fair value of assets acquired and liabilities assumed. See Note 4 — Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for additional information.
Unamortized Energy Contract Assets and Liabilities (Exelon Generation and PHI)
Unamortized energy contract assets and liabilities represent the remaining unamortized balances of non-derivative energyelectricity contracts that Generation has acquired and the electricity contracts Exelon has acquired as part of the PHI acquisition.merger. The initial amount recorded represents the difference between the fair value of the contracts at the time of acquisition. At PHI, offsettingacquisition and the contract value based on the terms of each contract. Offsetting regulatory assets or liabilities were also recorded.recorded for those energy contract costs that are probable of recovery through customer rates. The unamortized energy contract assets and liabilities and anythe corresponding regulatory assets, or liabilities, respectively, are amortized over the life of the contract in relation to the expected realization of the underlying cash flows.Amortization of the unamortized energy contract assets and liabilities isare recorded through purchased power and fuel expense or operating revenues, depending on the nature of the underlying contract. Refer toexpense. See Note 3 — Regulatory Matters Note 4 — Mergers, Acquisitions and Dispositions and Note 1012 — Intangible Assets of the Combined Notes to Consolidated Financial Statements for further discussion.
Impairment of Long-lived Assets (All Registrants)
All Registrants regularly monitor and evaluate their long-lived assets and asset groups, excluding goodwill, for impairment when circumstances indicate the carrying value of those assets may not be recoverable. Indicators of potential impairment may include a deteriorating business climate, including declines in energy prices, condition of the asset, an asset remaining idle for more than a short period of time, specific regulatory disallowance, advances in technology or plans to dispose of a long-lived asset significantly before the end of its useful life, among others.
The review of long-lived assets and asset groups for impairment utilizes significant assumptions about operating strategies and estimates of future cash flows, which require assessments of current and projected market conditions. For the generation business, forecasting future cash flows requires assumptions regarding forecasted commodity prices for the sale of power and purchases of fuel and the expected operations of assets. A variation in the assumptions used could lead to a different conclusion regarding the recoverability of an asset or asset group and, thus, could have a significant impact on the consolidated financial statements. An impairment evaluation is based on an undiscounted cash flow analysis at the lowest level at which cash flows of the long-lived assets or asset groups are largely independent of the cash flows of other assets and liabilities. For the generation business, the lowest level of independent cash flows is determined by the evaluation of several factors, including the geographic dispatch of the generation units and the hedging strategies related to those units as well as the associated intangible assets or liabilities recorded on the balance sheet. The cash flows from the generating units are generally evaluated at a regional portfolio level with cash flows generated from the customer supply and risk management activities, including cash flows from related intangible assets and liabilities on the balance sheet. In certain cases, generating assets may be evaluated on an individual basis where those assets are contracted on a long-term basis with a third party and operations are independent of other generating assets (typically contracted renewables).
On a quarterly basis, Generation assesses its long-lived assets or asset groups for indicators of impairment. If indicators are present for a long-lived asset or asset group, a comparison of the undiscounted expected future cash flows to the carrying value is performed. When the undiscounted cash flow analysis indicates the carrying value of a long-lived asset or asset group is not recoverable, the amount of the impairment loss is determined by measuring the excess of the carrying amount of the long-lived asset or asset group over its fair value. The fair value of the long-lived asset or asset group is dependent upon a market participant’s view of the exit price of the assets. This includes significant assumptions of the estimated future cash flows generated by the assets and market discount rates.

Events and circumstances often do not occur as expected and there will usually be differences between prospective financial information and actual results, and those differences may be material. The determination of fair value is driven by both internal assumptions that include significant unobservable inputs (Level 3) such as revenue and generation forecasts, projected capital, and maintenance expenditures and discount rates, as well as information from various public, financial and industry sources.
Generation evaluates its equity method investments and other investments in debt and equity securities to determine whether or not they are impaired based on whether the investment has experienced a decline in value that is not temporary in nature. Beginning January 1, 2018, the authoritative guidance eliminates the available-for-sale and cost method classifications for equity securities and requires that all equity investments (other than those accounted for using the equity method of accounting) be measured and recorded at fair value with any changes in fair value recorded through earnings. Investments in equity securities without readily determinable fair values must be qualitatively assessed for impairment each reporting period and fair value determined if any significant impairment indicators exist. If the fair value is less than the carrying value, the impairment is recorded through earnings immediately in the period in which it is identified without regard to whether the decline in value is temporary in nature. The new authoritative guidance does not impact the classification or measurement of investments in debt securities. See Note 1-Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for furtheradditional information.
See Note 7 — Impairment of Long-Lived Assets and Intangibles of the Combined Notes to Consolidated Financial Statements for a discussion of asset impairment evaluations made by Exelon.
Depreciable Lives of Property, Plant, and Equipment (All Registrants)
The Registrants have significant investments in electric generation assets and electric and natural gas transmission and distribution assets. These assets are generally depreciated on a straight-line basis, using the group, composite or unitarycomposite methods of depreciation. The group approach is typically for groups of similar assets that have approximately the same useful lives and the composite approach is used for heterogeneous assets that have different lives. Under both methods, a reporting entity depreciates the assets over the average life of the assets in the group. The estimation of asset useful lives requires management judgment, supported by formal depreciation studies of historical asset retirement experience. Depreciation studies are generally completed every five years, or more frequently ifconducted periodically and as required by a rate regulator or if an event, regulatory action, or changechanges in retirement patterns indicate an update is necessary.
For the Utility Registrants, depreciationDepreciation studies generally serve as the basis for amounts allowed in customer rates for recovery of depreciation costs. Generally, the Utility Registrants adjust their depreciation rates for financial reporting purposes concurrent with adjustments to depreciation rates reflected in customer rates, unless the depreciation rates reflected in customer rates do not align with management’s judgment as to an appropriate estimated useful life or have not been updated on a timely basis. Depreciation expense and customer rates for ComEd, BGE, Pepco, DPL, and ACE includesinclude an estimated costestimate of the future costs of dismantling and removing plant from service upon retirement. Actual incurredSee Note 3 — Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for information regarding regulatory liabilities and assets recorded by ComEd, BGE, Pepco, DPL, and ACE related to removal costs are applied against a related regulatory liability or recorded to a regulatory asset if in excess of previously collected removal costs.
PECO’s removal costs are capitalized to accumulated depreciation when incurred and recorded to depreciation expense over the life of the new asset constructed consistent with PECO’s regulatory recovery method. Estimates for such removal costs are also evaluated in the periodic depreciation studies.
At Generation, along with depreciation study results, management considers expected future energy market conditions and generation plant operating costs and capital investment requirements in determining the estimated service lives of its generating facilities. See Note 8 — Early Nuclear Plant

Retirements of the Combined Notes to the Consolidated Financial Statements for additional information on expected and potential early nuclear plant retirements.
Generation completed a depreciation rate study during the first quarter of 2015, which resulted in revised depreciation rates effective January 1, 2015.
ComEd is required to file an electric distribution depreciation rate study at least every five years with the ICC. ComEd completed an electric distribution and transmission depreciation study and filed the updated depreciation rates with both the ICC and FERC in January 2014, resulting in new depreciation rates effective first quarter 2014.
PECO is required to file electric distribution and gas depreciation rate studies at least every five years with the PAPUC. In March 2015, PECO filed a depreciation rate study with the PAPUC for both its electric distribution and gas assets, resulting in new depreciation rates for electric transmission assets effective January 1, 2015, for gas distribution assets effective July 1, 2015, and for electric distribution assets effective January 1, 2016.
The MDPSC does not mandate the frequency or timing of BGE’s electric distribution or gas depreciation studies. In July 2014, BGE filed revised depreciation rates with the MDPSC for both its electric distribution and gas assets, which became effective December 15, 2014. In addition, BGE’s electric transmission depreciation rates were updated effective April 1, 2015.
The MDPSC does not mandate the frequency or timing of Pepco's electric distribution depreciation studies, while the DCPSC directs Pepco as to when it should file an electric distribution depreciation study. In 2016 and 2013, Pepco filed revised electric distribution depreciation rates with the MDPSC and DCPSC, respectively, with the new rates effective November 15, 2016 and April 16, 2014, respectively. On December 19, 2017, Pepco filed an electric distribution rate application which included revised depreciation rates. Pepco expects a decision in the fourth quarter of 2018.
Neither the DPSC nor the MDPSC mandates the frequency or timing of DPL's electric distribution or gas depreciation studies. On July 20, 2016, DPL filed revised electric depreciation rates with the MDPSC as part of the electric distribution base rate filing, resulting in new depreciation rates effective on April 20, 2017. On May 17, 2016, DPL filed revised electric and natural gas depreciation rates with the DPSC as part of the electric and natural gas base rate case filing, resulting in new electric depreciation rates effective June 1, 2017 and new gas depreciation rates effective July 1, 2017.
The NJBPU does not mandate the frequency or timing of ACE's electric distribution depreciation studies. In 2012, ACE filed revised electric distribution depreciation rates with the NJBPU, with the new rates effective July 1, 2013. ACE expects to perform an electric distribution depreciation study in 2018.
While FERC does not mandate the frequency or timing of electric transmission depreciation studies, the Utility Registrants and Generation perform studies on all assets every 5 years. Pepco, DPL and ACE last performed transmission depreciation studies in 1988, 1990, and 2003, respectively, but are adopting Exelon's practice and are currently evaluating the timing of the next study.
Changes in estimated useful lives of electric generation assets and of electric and natural gas transmission and distribution assets could have a significant impact on the Registrants’ future results of operations. See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for information regarding depreciation and estimated service lives of the property, plant, and equipment of the Registrants.
Defined Benefit Pension and Other Postretirement EmployeeRetirement Benefits (All Registrants)
Exelon sponsors defined benefit pension plans and other postretirement employee benefitOPEB plans for substantially all current employees. See Note 16 — Retirement Benefits of the Combined Notes to

Consolidated Financial Statements for additional information regarding the accounting for the defined benefit pension plans and other postretirement benefit plans.
The measurement of the plan obligations and costs of providing benefits involves various factors, including the development of valuation assumptions and inputs and accounting policy elections. When developing the required assumptions, Exelon considers historical information as well as future expectations. The measurement of benefit obligations and costs is affected by several assumptions including the discount rate, applied to benefit obligations, the long-term expected rate of return on plan assets, the anticipated rate of increase of health care costs, Exelon’s expected level ofExelon's contributions, to the plans, the incidence of participant mortality, the expected remaining service period of plan participants, the level of compensation and rate of
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compensation increases, employee age, length of service, and the long-term expected investment rate credited to employees of certain plans, among others. The assumptions are updated annually and upon any interim remeasurement of the plan obligations. Exelon amortizes actuarial gains or losses in excess of a corridor of 10% of the greater of the projected benefit obligation or the market-related value (MRV) of plan assets over the expected average remaining service period of plan participants. Pension and other postretirement benefit costs attributed to the operating companies are labor costs and are ultimately allocated to projects within the operating companies, some of which are capitalized.
Pension and other postretirement benefitOPEB plan assets include equity securities, including U.S. and international securities, and fixed income securities, as well as certain alternative investment classes such as real estate, private equity, and hedge funds. See Note 16 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for information on fair value measurements of pension and other postretirement plan assets, including valuation techniques and classification under the fair value hierarchy in accordance with authoritative guidance.
Expected Rate of Return on Plan Assets
Assets. In determining the EROA, Exelon considers historical economic indicators (including inflation and GDP growth) that impact asset returns, as well as expectation regarding future long-term capital market performance, weighted by Exelon’s target asset class allocations. Exelon calculates the amount of expected return on pension and other postretirement benefitOPEB plan assets by multiplying the EROA by the MRV of plan assets at the beginning of the year, taking into consideration anticipated contributions and benefit payments to be made during the year. In determining MRV, the authoritative guidance for pensions and postretirement benefits allows the use of either fair value or a calculated value that recognizes changes in fair value in a systematic and rational manner over not more than five years. For the majority of pension plan assets, Exelon uses a calculated value that adjusts for 20% of the difference between fair value and expected MRV of plan assets. Use of this calculated value approach enables less volatile expected asset returns to be recognized as a component of pension cost from year to year. For other postretirement benefitOPEB plan assets and certain pension plan assets, Exelon uses fair value to calculate the MRV. See Note 16 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for further information regarding Exelon’s EROA assumptions.
Discount Rate
At December 31, 2017 and 2016, theRate. The discount rates wereare determined by developing a spot rate curve based on the yield to maturity of a universe of high-quality non-callable (or callable with make whole provisions) bonds with similar maturities to the related pension and other postretirement benefitOPEB obligations. The spot rates are used to discount the estimated future benefit distribution amounts under the pension and other postretirement benefitOPEB plans. The discount rate is the single level rate that produces the same result as the spot rate curve. Exelon utilizes an analytical tool developed by its actuaries to determine the discount rates. See Note 16 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for further information regarding Exelon’s discount rate assumptions.

Health Care Cost Trend Rate
Assumed health care cost trend rates impact the costs reported for Exelon’s other postretirement benefit plans for participant populations with plan designs that do not have a cap on cost growth. Authoritative guidance requires that annual health care cost estimates be developed using past and present health care cost trends (both for Exelon and across the broader economy), as well as expectations of health care cost escalation, changes in health care utilization and delivery patterns, technological advances and changes in the health status of plan participants. Therefore, the trend rate assumption is subject to significant uncertainty. Exelon assumes an ultimate health care cost trend rate of 5.00% has been reached in 2017 for its other postretirement benefit plans.
Mortality
Mortality. The mortality assumption is composed of a base table that represents the current expectation of life expectancy of the population adjusted by an improvement scale that attempts to anticipate future improvements in life expectancy. Exelon’s mortality assumption is supported by an actuarial experience study of Exelon's plan participants and utilizes the IRS's RP-2000SOA 2019 base table (Pri-2012) and the Scale BB 2-DimensionalMP-2021 improvement scale with long-term improvements of 0.75%.adjusted to use Proxy SSA ultimate improvement rates.
Sensitivity to Changes in Key Assumptions
Assumptions. The following tables illustrate the effects of changing certain of the actuarial assumptions discussed above, while holding all other assumptions constant (dollars in millions):constant:
 Actual Assumption        
Actuarial AssumptionPension OPEB 
Change in
Assumption
 Pension OPEB Total
Change in 2017 cost:           
Discount rate (a)
4.04% 4.04% 0.5% $(72) $(16) $(88)
 4.04% 4.04% (0.5)% 89
 19
 108
EROA7.00% 6.58% 0.5% (85) (12) (97)
 7.00% 6.58% (0.5)% 85
 12
 97
Health care cost trend rateNA 5.00% 1.00% N/A
 9
 9
 NA 5.00% (1.00)% N/A
 (8) (8)
Change in benefit obligation at December 31, 2017:           
Discount rate (a)
3.62% 3.61% 0.5% (1,183) (252) (1,435)
 3.62% 3.61% (0.5)% 1,371
 291
 1,662
Health care cost trend rateNA 5.00% 1.00% N/A
 125
 125
 NA 5.00% (1.00)% N/A
 (113) (113)
Actual Assumption
Actuarial AssumptionPensionOPEBChange in
Assumption
PensionOPEBTotal
Change in 2022 cost:
Discount rate(a)
3.24%3.20%0.5%$(16)$(2)$(18)
3.24%3.20%(0.5)%31 38 
EROA7.00%6.44%0.5%(54)(7)(61)
7.00%6.44%(0.5)%54 61 
Change in benefit obligation at December 31, 2022:
Discount rate(a)
5.53%5.51%0.5%(508)(83)(591)
5.53%5.51%(0.5)%655 104 759 
__________
(a)In general, the discount rate will have a larger impact on the pension and other postretirement benefit cost and obligation as the rate moves closer to 0%. Therefore, the discount rate sensitivities above cannot necessarily be extrapolated for larger increases or decreases in the discount rate. Additionally, Exelon utilizes a liability-driven investment strategy for its pension asset portfolio. The sensitivities shown above do not reflect the offsetting impact that changes in discount rates may have on pension asset returns.
(a)In general, the discount rate will have a larger impact on the pension and OPEB cost and obligation as the rate moves closer to 0%. Therefore, the discount rate sensitivities above cannot necessarily be extrapolated for larger increases or decreases in the discount rate. Additionally, Exelon utilizes a liability-driven investment strategy for its pension asset portfolio. The sensitivities shown above do not reflect the offsetting impact that changes in discount rates may have on pension asset returns.
See Note 1 — Significant Accounting Policies and Note 14 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information regarding the accounting for the defined benefit pension plans and OPEB plans.
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Regulatory Accounting (Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE)(All Registrants)
Exelon and the Utility Registrants account forFor their regulated electric and gas operations, in accordance with the authoritative guidance, which requires Exelon and the Utility Registrants to reflect the effects of cost-based rate regulation in their financial statements. This authoritative guidancestatements, which is

applicable to required for entities with regulated operations that meet the following criteria: (1) rates are established or approved by a third-party regulator; (2) rates are designed to recover the entities’ cost of providing services or products; and (3) a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. Regulatory assets represent incurred costs that have been deferred because of their probable future recovery from customers through regulated rates. Regulatory liabilities represent (1) revenue or gains that have been deferred because it is probable such amounts will be returned to customers through future regulated rates; or (2) billings in advance of expenditures for approved regulatory programs. As of December 31, 2017, Exelon and the Utility Registrants have concluded that the operations of each such Registrant meet the criteria to apply the authoritative guidance. If it is concluded in a future period that a separable portion of operations no longer meets the criteria of this authoritative guidance, Exelon anddiscussed above, the Utility Registrants would be required to eliminate any associated regulatory assets and liabilities and the impact, which could be material, would be recognized in the Consolidated Statements of Operations and Comprehensive Income andIncome.
The following table illustrates gains (losses) to be included in net income that could be material. At December 31, 2017, the gain (loss) could have been as much as $1.1 billion, $5.3 billion, $280 million, $592 million, $(1.1) billion, $(59) million, $321 million and $(8) million (before taxes) as a result offrom the elimination of regulatory assets and liabilities and charges against OCI related to deferred costs associated with Exelon's pension and OPEB plans that are recorded as regulatory assets in Exelon's Consolidated Balance Sheets (before taxes) as of Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE, respectively. Further, Exelon would record aDecember 31, 2022:
(In millions)ExelonComEdPECOBGEPHIPepcoDPLACE
Gain (loss)$2,461 $3,697 $(387)$159 $(978)$(211)$142 $(442)
Charge against OCI(a)
(2,590)— — — — — — — 
___________
(a)Exelon's charge against OCI (before taxes) consists of up to $3.8$1.9 billion, $2.4 billion, $544$347 million,$177 $492 million, $407$279 million, $202$113 million, and $92$59 million related to Exelon's, ComEd's, BGE's, PHI's, Pepco's, DPL's, and ACE's respective portions of the deferred costs associated with Exelon's pension and other postretirement benefit plans that are recorded as regulatory assets on Exelon's Consolidated Balance Sheets.OPEB plans. Exelon also has a net regulatory liability of $(31)$115 million (before taxes) related to PECO’s portion of the deferred costs associated with Exelon’s other postretirement benefitOPEB plans that would result in an increase in OCI if reversed.
See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding regulatory matters, including the regulatory assets and liabilities tables of Exelon and the Utility Registrants.
For each regulatory jurisdiction in which they conduct business, Exelon and the Utility Registrants assess whether the regulatory assets and liabilities continue to meet the criteria for probable future recovery or settlementrefund at each balance sheet date and when regulatory events occur. This assessment includes consideration of recent rate orders, historical regulatory treatment for similar costs in each Registrant's jurisdictions, and factors such as changes in applicable regulatory and political environments. Furthermore, each Registrant makes other judgments related toIf the assessments and estimates made by the Registrants for regulatory assets and regulatory liabilities are ultimately different than actual regulatory outcomes, the impact in their consolidated financial statement impact of their regulatory environments, such as the types of adjustments to rate base that willstatements could be acceptable to regulatory bodies, if any, for which costs will be recoverable through rates. material.
Refer to the revenue recognition discussion below for additional information on the annual revenue reconciliations associated with ICC-approved electric distribution and energy efficiency formula rates for ComEd, and FERC transmission formula rate tariffs for ComEd, PECO, BGE, Pepco, DPL and ACE. Additionally, estimates are made in accordance with the authoritative guidance for contingencies as to the amount of revenues billed under certain regulatory orders that may ultimately be refunded to customers upon finalization of applicable regulatory or judicial processes. These assessments are based, to the extent possible, on past relevant experience with regulatory bodies in each Registrant's jurisdictions, known circumstances specific to a particular matter and hearings held with the applicable regulatory body. If the assessments and estimates made by Exelon and the Utility Registrants for regulatory assets and regulatory liabilities are ultimately different than actual regulatory outcomes, the impact on their results of operations, cash flows and financial positions could be material.Registrants.
The Registrants treat the impacts of a final rate order received after the balance sheet date but prior to the issuance of the financial statements as a non-recognized subsequent event, as the receipt of a final rate order is a separate and distinct event that has future impacts on the parties affected by the order.

Accounting for Derivative Financial Instruments (All Registrants)
The Registrants use derivative instruments to manage commodity price risk foreign currency exchange risk and interest rate risk related to ongoing business operations. The Registrants’ derivative activities are in accordance with Exelon’s Risk Management Policy (RMP). See Note 1215 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information regarding the Registrants’ derivative instruments.information.
The Registrants account for derivative financial instruments under the applicable authoritative guidance. Determining whether a contract qualifies as a derivative requires that management exercise significant judgment, including assessing market liquidity as well as determining whether a contract has one or more underlyingsunderlying and one or more notional quantities. Changes in management’s assessment of contracts and the liquidity of their markets, and changes in authoritative guidance, could result in previously excluded contracts becoming in scope to new authoritative guidance. Generation has determined that contracts to purchase uranium, contracts to purchase and sell capacity in certain ISO’s, certain emission products, ZECs and RECs do not meet the definition of a derivative as they do not provide for net settlement and the uranium, certain capacity, emission and ZEC and REC markets are not sufficiently liquid to conclude that physical forward contracts are readily convertible to cash. If these markets become sufficiently liquid, then Generation would be required to account for these contracts as derivative instruments. In this case, if market prices differ from the underlying prices of the contracts, Generation would be required to record mark-to-market gains or losses, which could have a material impact to Exelon’s and Generation’s results of operations and financial positions.
Under current authoritative guidance, allAll derivatives are recognized on the balance sheet at their fair value, except for certain derivatives that qualify for, and are elected under, the normal purchases and normal sales exception. Further,NPNS. For derivatives that qualify and are designated for hedge accounting are classified as either fair value or cash flow hedges. For fair value hedges, changes in fair values for both the derivativevalue each period are initially recorded in AOCI and the underlying hedged exposure are recognized in earnings immediately. For cash flow hedges, the portion of the derivative gain or loss that is effective in offsetting the change inwhen the hedged cash flowstransaction
52

affects earnings. In addition, for commodityFor derivatives executed for proprietary trading purposes, changes in the fair value of the derivatives are recognized in earnings immediately. Forintended to serve as economic hedges, thatwhich are not designated for hedge accounting, for the Utility Registrants, changes in the fair value each period are generallyrecognized in earnings on the Consolidated Statement of Operations and Comprehensive Income or are recorded withas a corresponding offsetting regulatory asset or liability given likelihood of recoveringwhen there is an ability to recover or return the associated costs through customer rates.or benefits in accordance with regulatory requirements.
Normal Purchases and Normal Sales Exception
As part of Generation’s energy marketing business, Generation enters into contracts to buy and sell energy to meet the requirements of its customers. These contracts include short-term and long-term commitments to purchase and sell energy and energy-related products in the retail and wholesale markets with the intent and ability to deliver or take delivery. While some of these contractsNPNS. Contracts that are considered derivative financial instruments under the authoritative guidance, certain of these qualifying transactions have been designated by Generation as normal purchases and normal sales transactions, whichNPNS are thus not required to be recorded at fair value, but rather on an accrual basis of accounting. Determining whether a contract qualifies for the normal purchases and normal sales exceptionNPNS requires judgment on whether the contract will physically deliver and requires that management ensure compliance with all of the associated qualification and documentation requirements. RevenuesFor all NPNS derivative instruments, accounts payable is recorded when derivatives settle and expenses on contracts that qualifyexpense is recognized in earnings as normal purchases and normal sales are recognized when the underlying physical transactioncommodity is completed.consumed. Contracts that qualify for the normal purchases and normal sales exception

NPNS are those for which physical delivery is probable, quantities are expected to be used or sold in the normal course of business over a reasonable period, of time and the contract is not financially settled on a net basis. The contracts that ComEd has entered into with suppliers as part of ComEd’s energy procurement process, PECO’s full requirement contracts under the PAPUC-approved DSP program, most of PECO’s natural gas supply agreements, all of BGE’s full requirement contracts and natural gas supply agreements that are derivatives, and certain Pepco, DPL, and ACE full requirement contracts qualify for and are accounted for under the normal purchases and normal sales exception.NPNS.
Commodity Contracts
Identification of a commodity contract as an economic hedge requires Generation to determine that the contract is in accordance with the RMP. Generation reassesses its economic hedges on a regular basis to determine if they continue to be within the guidelines of the RMP.
As a part of the authoritative guidance, theContracts. The Registrants make estimates and assumptions concerning future commodity prices, load requirements, interest rates, and the timing of future transactions and their probable cash flows the fair value of contracts and the expected changes in the fair value in deciding whether or not to enter into derivative transactions, and in determining the initial accounting treatment for derivative transactions. Under the authoritative guidance for fair value measurements, theThe Registrants categorize these derivatives under a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value.
Derivative contracts arecan be traded in both exchange-based and non-exchange-based markets. Exchange-based derivatives that are valued using unadjusted quoted prices in active markets are generally categorized in Level 1 in the fair value hierarchy.
Certain derivatives’derivative pricing is verified using indicative price quotations available through brokers or over-the-counter, on-lineonline exchanges. The price quotations reflect the average of the bid-ask mid-point from markets that the Registrants believe provide the most liquid market for the commodity. The price quotations are reviewed and corroborated to ensure the prices are observable and representative of an orderly transaction between market participants. The Registrant’s derivatives are traded predominately at liquid trading points. The remaining derivative contracts are valued using models that consider inputs such as contract terms, including maturity, and market parameters, and assumptions of the future prices of energy, interest rates, volatility, credit worthiness and credit spread. For derivatives that trade in liquid markets, such as generic forwards, swaps and options, the model inputs are generally observable. Such instruments are categorized in Level 2.
For derivatives that trade in less liquid markets with limited pricing information, the model inputs generally would include both observable and unobservable inputs and are categorized in Level 3.
The Registrants consider nonperformance risk, including credit risk in the valuation of derivative contracts, includingand both historical and current market data in itsthe assessment of nonperformance risk, including credit risk. The impacts of nonperformance and credit risk to date have generally not been material to the Registrants’ financial statements.
Interest Rate and Foreign Exchange Derivative Instruments
The Registrants may utilize fixed-to-floatingInstruments. Exelon Corporate utilizes interest rate swaps to manage interest rate risk on existing and planned future debt issuances as well as potential fluctuations in Electric operating revenues at the corporate level in consolidation, which are typically designated as fair value hedges,directly correlated to achieve the targeted level of variable-rate debt as a percent of total debt. Additionally, the Registrants may use forward-starting interest rate swaps and treasury rate locks to lock in interest-rate levels and floating to fixed swaps for project financing. In addition, Generation enters into interest rate derivative contracts to economically hedge risk associated with the interest rate component of commodity positions. The characterization of the interest rate derivative contracts between the economic hedge and proprietary trading activity is driven by the corresponding characterization of the underlying

commodity position that gives rise to the interest rate exposure. Generation does not utilize interest rate derivatives with the objective of benefiting from shifts or changes in market interest rates. To manage foreign exchange rate exposure associated with international energy purchases in currencies other thanyields on U.S. dollars, Generation utilizes foreign currency derivatives, which are typically designated as economic hedges.Treasury bonds under ComEd's distribution formula rate. The fair value of the agreementsswaps is calculated by discounting the future net cash flows to the present value based on the terms and conditions of the agreements and the forward interest rate curves. As these inputs are based on observable inputsdata and valuations of similar instruments, the interest rate derivatives are primarily categorized in Level 2 in the fair value hierarchy. Certain exchange based interest rate derivatives that are valued using unadjusted quoted prices in active markets are categorized in Level 1 in the fair value hierarchy.
See ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK and Note 1117 — Fair Value of Financial Assets and Liabilities and Note 1215 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information regarding the Registrants’ derivative instruments.
TaxationIncome Taxes (All Registrants)
Significant management judgment is required in determining the Registrants’ provisions for income taxes, primarily due to the uncertainty related to tax positions taken, as well as deferred tax assets and liabilities and valuation allowances. In accordance with applicable authoritative guidance, theThe Registrants account for uncertain income tax positions using a benefit recognition model with a two-step approach including a more-likely-than-not recognition threshold and a measurement approach based on the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement. If it is not more-likely-than-not that the benefit of the tax position will be sustained on its technical merits, no benefit is recorded. Uncertain tax positions that relate only to timing of when an item is included on a tax return are considered to have met the recognition threshold. Management evaluates each position based solely on the technical merits and facts and circumstances of the position, assuming the position will be examined by a taxing authority having full knowledge of all relevant information. Significant judgment is required to determine whether the recognition threshold has
53

been met and, if so, the appropriate amount of tax benefits to be recorded in the Registrants’ consolidated financial statements.
The Registrants evaluate quarterly the probability of realizing deferred tax assets by reviewing a forecast of future taxable income and their intent and ability to implement tax planning strategies, if necessary, to realize deferred tax assets. The Registrants also evaluate forassess negative evidence, such as the expiration of historical operating loss or tax credit carryforwards, that could indicate the Registrant's inability to realize its deferred tax assets, such as historical operating loss or tax credit carryforward expiration.assets. Based on the combined assessment, the Registrants record valuation allowances for deferred tax assets when they conclude it is more-likely-than-not such benefit will not be realized in future periods.
Actual income taxes could vary from estimated amounts due to the future impacts of various items, including future changes in income tax laws, the Registrants’ forecasted financial condition and results of operations, failure to successfully implement tax planning strategies, as well as results of audits and examinations of filed tax returns by taxing authorities. The Registrants have recorded the provisional income tax amounts as of December 31, 2017 for changes pursuant to the TCJA related to depreciation for which the impacts could not be finalized upon issuance of the Registrants' financial statements, but for which reasonable estimates could be determined. In accordance with SAB 118, additional remeasurement may occur based on technical corrections or other forms of guidance issued, which may result in material changes to previously finalized provisions. While the Registrants believe the resulting tax balances as of December 31, 2017 and 2016 are appropriately accounted for in accordance with the applicable authoritative guidance, the ultimate outcome of tax matters could result in favorable or unfavorable adjustments that could be material to their consolidated financial statements. See Note 1413 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding taxes.

information.
Accounting for Loss Contingencies (All Registrants)
In the preparation of their financial statements, the Registrants make judgments regarding the future outcome of contingent events and record liabilities for loss contingencies that are probable and can be reasonably estimated based upon available information. The amount recorded may differ from the actual expense incurred when the uncertainty is resolved. Such difference could have a significant impact onin the Registrants' consolidated financial statements.
Environmental Costs
Costs. Environmental investigation and remediation liabilities are based upon estimates with respect to the number of sites for which the Registrants will be responsible, the scope and cost of work to be performed at each site, the portion of costs that will be shared with other parties, the timing of the remediation work, and changes in technology, regulations, and the requirements of local governmental authorities. PeriodicAnnual studies and/or reviews are conducted at the Utility RegistrantsComEd, PECO, BGE, and DPL to determine future remediation requirements for MGP sites and estimates are adjusted accordingly. In addition, periodic reviews are performed at each of the Registrants to assess the adequacy of other environmental reserves. These matters, if resolved in a manner different from the estimate, could have a significant impact onin the Registrants’ results of operations, cash flows andconsolidated financial positions.statements. See Note 2318 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for furtheradditional information.
Other, Including Personal Injury Claims
Claims.The Registrants are self-insured for general liability, automotive liability, workers’ compensation, and personal injury claims to the extent that losses are within policy deductibles or exceed the amount of insurance maintained. The Registrants have reserves for both open claims asserted, and an estimate of claims incurred but not reported (IBNR). The IBNR reserve is estimated based on actuarial assumptions and analysis and is updated annually. Future events, such as the number of new claims to be filed each year, the average cost of disposing of claims, as well as the numerous uncertainties surrounding litigation and possible state and national legislative measures could cause the actual costs to be higher or lower than estimated. Accordingly, these claims, if resolved in a manner different from the estimate, could have a material impact onto the Registrants’ results of operations, cash flows andconsolidated financial positions.statements.
Revenue RecognitionRevenues (All Registrants)
Sources of Revenue and Determination of Accounting Treatment
Treatment. The Registrants earn revenues from various business activities including: the sale of energy and energy-related products, such as natural gas, capacity, and other commodities in non-regulated markets (wholesale and retail);the sale and delivery of electricitypower and natural gas in regulated markets; and the provision of other energy-related non-regulated products and services.
markets. The accounting treatment for revenue recognition is based on the nature of the underlying transaction and applicable authoritative guidance. The Registrants primarily use accrual, mark-to-market,apply the Revenue from Contracts with Customers, and Alternative Revenue Program (ARP) accounting guidance to recognize revenues as discussed in more detail below. Beginning on January 1, 2018, the Registrants will begin applying the
Revenue from Contracts with Customers guidance to recognize revenue. See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for additional information.
Accrual Accounting
Under accrual accounting, theCustomers. The Registrants recognize revenues in the period in which the performance obligations within contracts with customers are satisfied, which generally occurs when servicespower and natural gas are rendered or energy isphysically delivered to customers. Thethe customer. Transactions of the Registrants within the scope of Revenue from Contracts with Customers generally use accrual accounting to recognize revenues for sales of electricity, natural gas and other commodities as part of their physical delivery activities. The Registrants enter into these sales transactions using a variety of instruments,

including non-derivative agreements, derivatives that qualify for and are designated as normal purchases and normal sales (NPNS) of commodities that will be physically delivered,include sales to utility customers under regulated service tariffs and spot-market sales, including settlements with independent system operators.tariffs.
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The determination of Generation'sthe Registrants' power and the Utility Registrants' energynatural gas sales to individual customers is based on systematic readings of customer meters, generally on a monthly basis.monthly. At the end of each month, amounts of energy delivered to customers since the date of the last meter reading are estimated, and corresponding unbilled revenue is recorded. The measurement of unbilled revenue is affected by the following factors: daily customer usage measured by energygeneration or gas throughput volume, customer usage by class, losses of energy during delivery to customers and applicable customer rates. Increases or decreases in volumes delivered to the utilities'Registrant’s customers and favorable or unfavorable rate mix due to changes in usage patterns in customerscustomer classes in the period could be significant to the calculation of unbilled revenue. In addition, unbilled revenues may fluctuate monthly as a result of customers electing to use an alternatealternative supplier, since unbilled commodity receivablesrevenues are not recorded for these customers. Changes in the timing of meter reading schedules and the number and type of customers scheduled for each meter reading date also impact the measurement of unbilled revenue,revenue; however, total operating revenues would remain materially unchanged. See Note 51Accounts ReceivableSignificant Accounting Policies of the Combined Notes to Consolidated Financial Statements for additional information on unbilled revenue.information.
Mark-to-Market Accounting
The Registrants record revenues and expenses using the mark-to-market method of accounting for transactions that meet the definition of a derivative for which they are not permitted, or have not elected, the NPNS exception. These mark-to-market transactions primarily relate to commodity price risk management activities. Mark-to-market revenues and expenses include: inception gains or losses on new transactions where the fair value is observable and realized; and unrealized gains and losses from changes in the fair value of open contracts.
Alternative Revenue Program Accounting
Accounting. Certain of the Utility Registrants'Registrants’ ratemaking mechanisms qualify as ARPs if they meet certain criteria. At each balance sheet date,(i) are established by a regulatory order and allow for automatic adjustment to future rates, (ii) provide for additional revenues (above those amounts currently reflected in the Utility Registrants with such mechanisms, including ComEd's electric distributionprice of utility service) that are objectively determinable and energy efficiency formulas,probable of recovery, and ComEd's, PECO's, BGE's, Pepco's, DPL's, and ACE's FERC transmission formula rates, record ARP(iii) allow for the collection of those additional revenues for any differences betweenwithin 24 months following the prior year revenue requirement in effect in rates and their best estimateend of the current yearperiod in which they were recognized. For mechanisms that meet these criteria, which include the Registrants’ formula rate mechanisms and revenue requirement that is probable of approval by the ICC or FERC. Estimates of the current year revenue requirement are based on actual and/or forecasted costs and investment in rate base for the period and the rates of return on common equity and associated regulatory capital structure allowed under the applicable tariff. ComEd, BGE, Pepco, and DPL also have decoupling mechanisms, which qualify as ARPs. The Utilitythe Registrants recognizeadjust revenue and record an offsetting regulatory asset or liability once the condition or event allowing foradditional billing or refund has occurred. The ARP revenues presented in the automatic adjustmentRegistrants’ Consolidated Statements of future rates occurs.
The Utility Registrants’ ARP revenuesOperations and Comprehensive Income include both: (i) the recognition of “originating” ARP revenues (when the regulator-specified condition or event allowing for additional billing or refund has occurred) and (ii) an equal and offsetting reversal of the “originating” ARP revenues as those amounts are reflected in the price of utility service and recognized as Revenue from Contracts with Customers.
ComEd records ARP revenue for its best estimate of the electric distribution, energy efficiency, distributed generation rebates, and transmission revenue impacts resulting from future changes in rates that ComEd believes are probable of approval by the ICC and FERC in accordance with its formula rate mechanisms. BGE, Pepco, DPL, and ACE record ARP revenue for their best estimate of the electric and natural gas distribution revenue impacts resulting from future changes in rates that they believe are probable of approval by the MDPSC, DCPSC, and/or NJBPU in accordance with their revenue decoupling mechanisms. PECO, BGE, Pepco, DPL, and ACE record ARP revenue for their best estimate of the transmission revenue impacts resulting from future changes in rates that they believe are probable of approval by FERC in accordance with their formula rate mechanisms. Estimates of the current year revenue requirement are based on actual and/or forecasted costs and investments in rate base for the period and the rates of return on common equity and associated regulatory capital structure allowed under the applicable tariff. The estimated reconciliation can be affected by, among other things, variances in costs incurred, investments made, allowed ROE, and actions by regulators or courts.
See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for furtheradditional information.

Allowance for UncollectibleCredit Losses on Customer Accounts Receivable (All Registrants)
The allowance for uncollectible accounts reflects the Registrants’ best estimates of losses on the accounts receivable balances. For Generation, the allowance is based on accounts receivable aging historical experience and other currently available information. ComEd, PECO, BGE, Pepco, DPL and ACE,Registrants estimate the allowance for uncollectible accountscredit losses on customer receivables by applying loss rates developed specifically for each company based on historical loss experience, current conditions, and forward-looking risk factors to the outstanding receivable balance by customer risk segment. Risk segments represent a group of customers with similar forward-looking credit quality indicators and risk factors that are comprised based on various attributes, including delinquency of their balances and payment history.history and represent expected, future customer behavior. Loss rates applied to the accounts receivable balances are based on a historical average of charge-offs as a percentage of accounts receivable in each risk segment. The Utility Registrants' customer accounts are generally considered delinquent if the amount billed is not received by the time the next bill is issued, which normally occurs on a monthly basis. UtilityThe Registrants' customer accounts are written off consistent with approved regulatory requirements. UtilityThe Registrants' allowances for uncollectible accountscredit losses will continue to be affected by changes in volume, prices, and economic conditions as well as changes in ICC, PAPUC, MDPSC, DCPSC, DPSCDEPSC, and NJBPU regulations. See Note 5 — Accounts Receivable

55

Results of Operations by Business Segment
The comparisons of operating results and other statistical information for the years ended December 31, 2017, 2016 and 2015 set forth below include intercompany transactions, which are eliminated in Exelon’s consolidated financial statements.
Net Income (Loss) Attributable to Common Shareholders by Registrant
 For the Years Ended December 31, Favorable (unfavorable) 2017 vs. 2016 variance For the Year Ended December 31, 2015 Favorable (unfavorable) 2016 vs. 2015 variance
 2017 2016   
Exelon$3,770
 $1,134
 $2,636
 $2,269
 $(1,135)
Generation2,694
 496
 2,198
 1,372
 (876)
ComEd567
 378
 189
 426
 (48)
PECO434
 438
 (4) 378
 60
BGE307
 286
 21
 275
 11
Pepco205
 42
 163
 187
 (145)
DPL121
 (9) 130
 76
 (85)
ACE77
 (42) 119
 40
 (82)
 Successor  Predecessor
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI$362
 $(61)  $19
 $327

Results of Operations—GenerationComEd
20222021(Unfavorable) Favorable Variance
Operating revenues$5,761 $6,406 $(645)
Operating expenses
Purchased power1,109 2,271 1,162 
Operating and maintenance1,412 1,355 (57)
Depreciation and amortization1,323 1,205 (118)
Taxes other than income taxes374 320 (54)
Total operating expenses4,218 5,151 933 
Gain on sales of assets(2)— (2)
Operating income1,541 1,255 286 
Other income and (deductions)
Interest expense, net(414)(389)(25)
Other, net54 48 
Total other income and (deductions)(360)(341)(19)
Income before income taxes1,181 914 267 
Income taxes264 172 (92)
Net income$917 $742 $175 
 2017 2016 Favorable (unfavorable) 2017 vs. 2016 variance 2015 Favorable (unfavorable) 2016 vs. 2015 variance
Operating revenues$18,466
 $17,751
 $715
 $19,135
 $(1,384)
Purchased power and fuel expense9,690
 8,830
 (860) 10,021
 1,191
Revenues net of purchased power
and fuel expense(a)
8,776

8,921
 (145)
9,114

(193)
Other operating expenses    

    
Operating and maintenance6,291
 5,641
 (650) 5,308
 (333)
Depreciation and amortization1,457
 1,879
 422
 1,054
 (825)
Taxes other than income555
 506
 (49) 489
 (17)
Total other operating expenses8,303

8,026
 (277)
6,851

(1,175)
Gain (Loss) on sales of assets2
 (59) 61
 12
 (71)
Bargain purchase gain233
 
 233
 
 
Gain on deconsolidation of business213
 
 213
 
 
Operating income921

836

85

2,275

(1,439)
Other income and (deductions)         
Interest expense(440) (364) (76) (365) 1
Other, net948
 401
 547
 (60) 461
Total other income and (deductions)508

37

471

(425)
462
Income before income taxes1,429

873

556

1,850

(977)
Income taxes(1,375) 290
 1,665
 502
 212
Equity in losses of unconsolidated affiliates(33) (25) (8) (8) (17)
Net income2,771

558

2,213

1,340

(782)
Net income (loss) attributable to noncontrolling interests77
 62
 15
 (32) 94
Net income attributable to membership interest$2,694

$496

$2,198

$1,372

$(876)
__________ 
(a)Generation evaluates its operating performance using the measure of revenues net of purchased power and fuel expense. Generation believes that revenues net of purchased power and fuel expense is a useful measurement because it provides information that can be used to evaluate its operational performance. Revenues net of purchased power and fuel expense is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.

Net Income Attributable to Membership Interest
Year Ended December 31, 20172022 Compared to Year Ended December 31, 2016.Generation's 2021.Net income attributable to membership interest increased compared to the same period in 2016,by $175 million primarily due to lower Depreciationincreases in electric distribution and amortization, a Bargain purchase gain in 2017, a Gain on deconsolidation of business in 2017,energy efficiency formula rate earnings (reflecting higher Other income and decreased Income taxes, partially offset by lower Revenues net of purchased power and fuel expense and higher Operating and maintenance expense. The decrease in Depreciation and amortization expense is primarilyallowed ROE due to lower accelerated depreciation and amortization as a result of the 2017 decision to early retire the TMI nuclear facility compared to the previous decision in 2016 to early retire Clinton and Quad Cities nuclear facilities. The Bargain purchase gain is due to the acquisition of the FitzPatrick nuclear facility. The Gain on deconsolidation of business in 2017 is due to the deconsolidation of EGTP's net liabilities, which included the previously impaired assets and related debt, as a result of the November 2017 bankruptcy filing. Thean increase in Other income is primarily due to higher realized NDT fund gains. The decrease in Income taxes primarily relates to the one-time non-cash impacts associated with the Tax CutsU.S. Treasury rates and Jobs Act. The decrease in Revenues net of purchased power and fuel expense primarily reflects lower realized energy prices, the impacts of lower load volumes delivered due to mild weather in the third quarter 2017, the conclusion of the Ginna Reliability Support Services Agreement and the impact of declining natural gas prices on Generation’s natural gas portfolio, partially offset by the impact of the New York CES, higher capacity prices, the addition of two combined-cycle gas turbines in Texas and lower nuclear fuel prices. The increase in Operating and maintenance expense is primarily related to the impairment of EGTP in 2017.rate base).
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015.Generation's Net income attributable to membership interest decreased compared to the same period in 2015, primarily due to lower Revenues net of purchased power and fuel expense, higher Operating and maintenance expense, higher Depreciation and amortization expense, and Losses on sales of assets in 2016, partially offset by increased Other income and decreased Income tax expense. The decrease in Revenues net of purchased power and fuel expense primarily relates to lower mark-to-market results in 2016 compared to 2015 and lower realized energy prices, partially offset by the Ginna Reliability Support Services Agreement and a decrease in outage days at higher capacity units despite an increase in overall outage days. The increase in Operating and maintenance expense is primarily related to the impairment of Upstream assets and certain wind projects, and increased costs related to the implementation of the cost management program. The increase in Depreciation and amortization expense is primarily related to accelerated depreciation and amortization expense related to the previous decision to early retire the Clinton and Quad Cities nuclear generating facilities, increased nuclear decommissioning amortization and increased depreciation expense due to ongoing capital expenditures. The increase in Losses on sales of assets is primarily due to Generation's strategic decision to narrow the scope and scale of its growth and development activities. The increase in Other income is primarily due to the change in realized and unrealized gains and losses on NDT funds.
Revenues Net of Purchased Power and Fuel Expense
The basis for Generation’s reportable segments is the integrated management of its electricity business that is located in different geographic regions, and largely representative of the footprints of ISO/RTO and/or NERC regions, which utilize multiple supply sources to provide electricity through various distribution channels (wholesale and retail). Generation's hedging strategies and risk metrics are also aligned with these same geographic regions. Descriptions of each of Generation’s six reportable segments are as follows:
Mid-Atlantic represents operations in the eastern half of PJM, which includes New Jersey, Maryland, Virginia, West Virginia, Delaware, the District of Columbia and parts of Pennsylvania and North Carolina.

Midwest represents operations in the western half of PJM, which includes portions of Illinois, Pennsylvania, Indiana, Ohio, Michigan, Kentucky and Tennessee, and the United States footprint of MISO excluding MISO’s Southern Region, which covers all or most of North Dakota, South Dakota, Nebraska, Minnesota, Iowa, Wisconsin, the remaining parts of Illinois, Indiana, Michigan and Ohio not covered by PJM, and parts of Montana, Missouri and Kentucky.
New England represents the operations within ISO-NE covering the states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont.
New York represents operations within ISO-NY, which covers the state of New York in its entirety.
ERCOT represents operations within Electric Reliability Council of Texas, covering most of the state of Texas.
Other Power Regions:
South represents operations in the FRCC, MISO’s Southern Region, and the remaining portions of the SERC not included within MISO or PJM, which includes all or most of Florida, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Tennessee, North Carolina, South Carolina and parts of Missouri, Kentucky and Texas. Generation’s South region also includes operations in the SPP, covering Kansas, Oklahoma, most of Nebraska and parts of New Mexico, Texas, Louisiana, Missouri, Mississippi and Arkansas.
West represents operations in the WECC, which includes California ISO, and covers the states of California, Oregon, Washington, Arizona, Nevada, Utah, Idaho, Colorado, and parts of New Mexico, Wyoming and South Dakota.
Canada represents operations across the entire country of Canada and includes the AESO, OIESO and the Canadian portion of MISO.
The following business activities are not allocated to a region, and are reported under Other: natural gas, as well as other miscellaneous business activities that are not significant to Generation's overall operating revenues or results of operations. Further, the following activities are not allocated to a region, and are reported in Other: amortization of certain intangible assets relating to commodity contracts recorded at fair value from mergers and acquisitions; accelerated nuclear fuel amortization associated with nuclear decommissioning; and other miscellaneous revenues.
Generation evaluates the operating performance of electric business activities using the measure of Revenue net of purchased power and fuel expense, which is a non-GAAP measurement. Generation’s operating revenues include all sales to third parties and affiliated sales to the Utility Registrants. Purchased power costs include all costs associated with the procurement and supply of electricity including capacity, energy and ancillary services. Fuel expense includes the fuel costs for owned generation and fuel costs associated with tolling agreements.

For the years ended December 31, 2017 compared to 2016 and December 31, 2016 compared to 2015, Generation’s Revenue net of purchased power and fuel expense by region were as follows:
     2017 vs. 2016   2016 vs. 2015
 2017 2016 Variance % Change 2015 Variance % Change
Mid-Atlantic(a)
$3,214
 $3,317
 $(103) (3.1)% $3,571
 $(254) (7.1)%
Midwest(b)
2,820
 2,971
 (151) (5.1)% 2,892
 79
 2.7 %
New England514
 438
 76
 17.4 % 461
 (23) (5.0)%
New York(d)
976
 742
 234
 31.5 % 634
 108
 17.0 %
ERCOT332
 281
 51
 18.1 % 293
 (12) (4.1)%
Other Power Regions305
 336
 (31) (9.2)% 250
 86
 34.4 %
Total electric revenues net of purchased power and fuel expense8,161

8,085

76
 0.9 % 8,101

(16) (0.2)%
Proprietary Trading18
 15
 3
 n.m.
 1
 14
 n.m.
Mark-to-market gains (losses)(175) (41) (134) 326.8 % 257
 (298) (116.0)%
Other(c)
772
 862
 (90) (10.4)% 755
 107
 14.2 %
Total revenue net of purchased power and fuel expense$8,776

$8,921

$(145) (1.6)% $9,114

$(193) (2.1)%
_________
(a)Results of transactions with PECO and BGE are included in the Mid-Atlantic region. Results of transactions with Pepco, DPL, and ACE are included in the Mid-Atlantic region beginning on March 24, 2016, the day after the PHI merger was completed.
(b)Results of transactions with ComEd are included in the Midwest region.
(c)Other represents activities not allocated to a region. See text above for a description of included activities. Includes amortization of intangible assets related to commodity contracts recorded at fair value of a $54 million decrease to RNF, an $57 million decrease to RNF, and an $8 million increase to RNF for the years ended December 31, 2017, 2016, and 2015, respectively, and accelerated nuclear fuel amortization associated with announced early plant retirements, as discussed in Note 8 - Early Nuclear Plant Retirements of the Combined Notes to Consolidated Financial Statements, of $12 million and $60 million for the years ended December 31, 2017 and 2016, respectively.
(d)Includes the ownership of the FitzPatrick nuclear facility from March 31, 2017.

Generation’s supply sources by region are summarized below:
     2017 vs. 2016   2016 vs. 2015
Supply Source (GWh)2017 2016 Variance % Change 2015 Variance % Change
Nuclear Generation(a)
             
Mid-Atlantic64,466
 63,447
 1,019
 1.6 % 63,283
 164
 0.3 %
Midwest93,344
 94,668
 (1,324) (1.4)% 93,422
 1,246
 1.3 %
New York(c)
25,033
 18,684
 6,349
 34.0 % 18,769
 (85) (0.5)%
Total Nuclear Generation182,843
 176,799
 6,044
 3.4 % 175,474
 1,325
 0.8 %
Fossil and Renewables      

     

Mid-Atlantic2,789
 2,731
 58
 2.1 % 2,774
 (43) (1.6)%
Midwest1,482
 1,488
 (6) (0.4)% 1,547
 (59) (3.8)%
New England7,179
 6,968
 211
 3.0 % 2,983
 3,985
 133.6 %
New York3
 3
 
  % 3
 
  %
ERCOT12,072
 6,785
 5,287
 77.9 % 5,763
 1,022
 17.7 %
Other Power Regions6,869
 8,179
 (1,310) (16.0)% 7,848
 331
 4.2 %
Total Fossil and Renewables30,394

26,154
 4,240
 16.2 % 20,918

5,236
 25.0 %
Purchased Power      

     

Mid-Atlantic 
9,801
 16,874
 (7,073) (41.9)% 8,160
 8,714
 106.8 %
Midwest1,373
 2,255
 (882) (39.1)% 2,325
 (70) (3.0)%
New England18,517
 16,632
 1,885
 11.3 % 24,309
 (7,677) (31.6)%
New York28
 
 28
  % 
 
  %
ERCOT7,346
 10,637
 (3,291) (30.9)% 10,070
 567
 5.6 %
Other Power Regions14,530
 13,589
 941
 6.9 % 18,773
 (5,184) (27.6)%
Total Purchased Power51,595
 59,987

(8,392) (14.0)% 63,637
 (3,650) (5.7)%
Total Supply/Sales by Region      

     

Mid-Atlantic(b)
77,056
 83,052
 (5,996) (7.2)% 74,217
 8,835
 11.9 %
Midwest(b)
96,199
 98,411
 (2,212) (2.2)% 97,294
 1,117
 1.1 %
New England25,696
 23,600
 2,096
 8.9 % 27,292
 (3,692) (13.5)%
New York25,064
 18,687
 6,377
 34.1 % 18,772
 (85) (0.5)%
ERCOT19,418
 17,422
 1,996
 11.5 % 15,833
 1,589
 10.0 %
Other Power Regions21,399
 21,768
 (369) (1.7)% 26,621
 (4,853) (18.2)%
Total Supply/Sales by Region264,832

262,940

1,892
 0.7 % 260,029

2,911
 1.1 %
__________
(a)Includes the proportionate share of output where Generation has an undivided ownership interest in jointly-owned generating plants and includes the total output of plants that are fully consolidated (e.g. CENG).
(b)Includes affiliate sales to PECO and BGE in the Mid-Atlantic region and affiliate sales to ComEd in the Midwest region. As a result of the PHI Merger, includes affiliate sales to Pepco, DPL and ACE in the Mid-Atlantic region beginning on March 24, 2016.
(c)Includes the ownership of the FitzPatrick nuclear facility from March 31, 2017.

Mid-Atlantic
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The $103 million decrease in revenues net of purchased power and fuel expense in the Mid-Atlantic primarily reflects lower load volumes, lower realized energy prices and decreased capacity prices, partially offset by the absence of oil inventory write-downs in 2017 and decreased nuclear outage days.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The $254 million decrease in revenues net of purchased power and fuel expense in the Mid-Atlantic was primarily due to lower realized energy prices, decreased capacity prices and higher oil inventory write-downs in 2016, partially offset by increased load volumes served.
Midwest
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The $151 million decrease in revenues net of purchased power and fuel expense in the Midwest primarily reflects lower realized energy prices and increased nuclear outage days, partially offset by decreased fuel prices.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The $79 million increase in revenues net of purchased power and fuel expense in the Midwest was primarily due to decreased nuclear outage days and decreased nuclear fuel prices.
New England
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The $76 million increase in revenues net of purchased power and fuel expense in New England was driven by increased capacity prices, partially offset by lower realized energy prices.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The $23 million decrease in revenues net of purchased power and fuel expense in New England was primarily due to lower realized energy prices and higher oil inventory write-downs in 2016, partially offset by increased capacity prices.
New York
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016.The $234 million increase in revenues net of purchased power and fuel expense in New York was primarily due to the impact of the New York CES and the acquisition of Fitzpatrick, partially offset by the conclusion of the Ginna Reliability Support Service Agreement and lower realized energy prices.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The $108 million increase in revenues net of purchased power and fuel expense in New York was primarily due to the impact of the Ginna Reliability Support Service Agreement, partially offset by lower realized energy prices.
ERCOT
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016.The $51 million increase in revenues net of purchased power and fuel expense in ERCOT was primarily due to the addition of two combined-cycle gas turbines in Texas, partially offset by lower realized energy prices.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The $12 million decrease in revenues net of purchased power and fuel expense in ERCOT was primarily due to lower realized energy prices, partially offset by increased output from renewable assets.

Other Power Regions
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016.The $31 million decrease in revenues net of purchased power and fuel expense in Other Power Regions was primarily due to lower realized energy prices.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The $86 million increase in revenues net of purchased power and fuel expense in Other Power Regions was primarily due to higher realized energy prices.
Proprietary Trading
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016.The $3 million increase in revenues net of purchased power and fuel expense in Proprietary trading was primarily due to congestion activity.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015.The $14 million increase in revenues net of purchased power and fuel expense in Proprietary trading was primarily due to congestion activity.
Mark-to-market
Generation is exposed to market risks associated with changes in commodity prices and executes economic hedges to mitigate exposure to these fluctuations. See Note 11 — Fair Value of Financial Assets and Liabilities and Note 12 — Derivative Financial Instruments of the Combined Notes to the Consolidated Financial Statements for information on gains and losses associated with mark-to-market derivatives.
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. Mark-to-market losses on economic hedging activities were $175 million in 2017 compared to losses of $41 million in 2016.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. Mark-to-market losses on economic hedging activities were $41 million in 2016 compared to gains of $257 million in 2015.
Other
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016.The $90 million decrease in other revenue net of purchased power and fuel was primarily due to the impacts of declining natural gas prices on Generation's natural gas portfolio and the decline in revenues related to the distributed generation business, partially offset by a decrease in accelerated nuclear fuel amortization associated with announced early plant retirements as discussed in Note 8 — Early Nuclear Plant Retirements of the Combined Notes to the Financial Statements.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015.The $107 million increase in other revenue net of purchased power and fuel was primarily due to revenue related to the inclusion of Pepco Energy Services results in 2016 and revenue related to energy efficiency projects, partially offset by the amortization of energy contracts recorded at fair value associated with prior acquisitions, and accelerated nuclear fuel amortization associated with the initial early retirement decision for Clinton and Quad Cities as discussed in Note 8 — Early Nuclear Plant Retirements of the Combined Notes to the Financial Statements.

Nuclear Fleet Capacity Factor
The following table presents nuclear fleet operating data for 2017, as compared to 2016 and 2015, for the Generation-operated plants. The nuclear fleet capacity factor presented in the table is defined as the ratio of the actual output of a plant over a period of time to its output if the plant had operated at full average annual mean capacity for that time period. Generation considers capacity factor to be a useful measure to analyze the nuclear fleet performance between periods. Generation has included the analysis below as a complement to the financial information provided in accordance with GAAP. However, these measures are not a presentation defined under GAAP and may not be comparable to other companies’ presentations or be more useful than the GAAP information provided elsewhere in this report.
 2017 2016 2015
Nuclear fleet capacity factor(a)
94.1% 94.6% 93.7%
Refueling outage days(a)
293
 245
 290
Non-refueling outage days(a)
53
 63
 82
__________
(a)Excludes Salem, which is operated by PSEG Nuclear, LLC. Reflects ownership percentage of stations operated by Exelon. Includes the ownership of the FitzPatrick nuclear facility from March 31, 2017.
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The nuclear fleet capacity factor, which excludes Salem, decreased in 2017 compared to 2016 primarily due to increased refueling outage days, partially offset by fewer non-refueling outage days.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The nuclear fleet capacity factor, which excludes Salem, increased in 2016 compared to 2015 primarily due to fewer refueling and non-refueling outage days.

Operating and Maintenance Expense
The changes in operating and maintenance expense for 2017 compared to 2016,Operating revenues consisted of the following:
Increase
(Decrease)(a)
2022 vs. 2021
Impairment and related charges of certain generating assets(b)
$307
Increase (Decrease)
Merger and integration costsDistribution13$
ARO update(c)
84
Pension and non-pension postretirement benefits expense10
Corporate allocations23
Plant retirements and divestitures(d)
127
Accretion expense(e)
35
Nuclear refueling outage costs, including the co-owned Salem plant(f)
104
Merger commitments(g)
(53)
Labor, other benefits, contracting and materials(h)
52
Cost management program(2)
Curtailment of Generation growth and development activities(j)
(24)
Vacation policy change(i)
(40)
Allowance for uncollectible accounts33
Change in Environmental Remediation Liabilities44
Other(63)
Increase in operating and maintenance expense$650
__________
310 
(a)TransmissionThe 2017 financial results include Generation's acquisition of the FitzPatrick nuclear generating station from March 31, 2017.
65 
(b)Energy efficiencyPrimarily reflects charges to earnings related to impairments as a result of the EGTP assets in 2017 and impairment of Upstream assets and certain wind projects in 2016.
65 
(c)OtherPrimarily reflects the non-cash benefit pursuant to the annual update of the Generation nuclear decommissioning obligation related to the non-regulatory units in 2017 compared to 2016.12
452 
(d)Regulatory required programsPrimarily represents the announcement of the early retirement of Generation's TMI nuclear facility in 2017 compared to the previous decision to early retire Generation's Clinton and Quad Cities nuclear facilities in 2016.
(1,097)
(e)
Total decrease
Reflects the impact of increased accretion expenses primarily due to the acquisition of FitzPatrick on March 31, 2017.$
(645)
(f)Primarily reflects an increase in the number of nuclear outage days during 2017 compared to 2016.
(g)Primarily represents costs incurred as part of the settlement orders approving the PHI acquisition during 2016.
(h)Reflects increased salaries, wages and contracting costs primarily related to the acquisition of the FitzPatrick nuclear facility beginning on March 31, 2017.
(i)Represents the reversal of previously accrued vacation expenses as a result of a change in Exelon's vacation vesting policy.
(j)Reflects the one-time recognition for a loss on sale of assets and asset impairment charges pursuant to Generation’s strategic decision in the fourth quarter of 2016 to narrow the scope and scale of its growth and development activities.

The changes in operating and maintenance expense for 2016 compared to 2015, consisted of the following:
 
Increase
(Decrease)
Impairment and related charges of certain generating assets (a)
$161
Merger and integration costs27
Midwest Generation bankruptcy charges10
ARO update(b)
(79)
Pension and non-pension postretirement benefits expense(c)
(42)
Corporate allocations(d)
(12)
Plant retirements and divestitures(e)
(50)
Accretion expense(21)
Nuclear refueling outage costs, including the co-owned Salem plant(f)
(61)
Merger commitments53
Labor, other benefits, contracting and materials(g)
185
Cost management program(h)
43
Curtailment of Generation growth and development activities(i)
24
Other95
Increase in operating and maintenance expense$333
__________
(a)Reflects increased impairments in 2016 compared to 2015, primarily related to the impairments of certain Upstream assets and wind generating assets in 2016.
(b)Reflects a non-cash benefit pursuant to the annual update of the Generation nuclear decommissioning obligation related to the non-regulatory units.
(c)Reflects the favorable impact of higher pension and OPEB discount rates.
(d)Reflects a decreased share of corporate allocated costs.
(e)Reflects the impact of the Generation's previous decision to early retire the Clinton and Quad Cities nuclear facilities.
(f)Reflects the favorable impacts of decreased nuclear outages in 2016.
(g)Reflects an increase of labor, other benefits, contracting and materials costs primarily due to increased contracting costs related to energy efficiency projects and the inclusion of Pepco Energy Services results in 2016. Also includes cost of sales of our other business activities that are not allocated to a region.
(h)Represents the 2016 severance expense and reorganization costs related to a cost management program.
(i)Reflects the one-time recognition for asset impairment charges pursuant to Generation's strategic decision in the fourth quarter of 2016 to narrow the scope and scale of its growth and development activities.
Depreciation and Amortization
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. Depreciation and amortization expense decreased primarily due to accelerated depreciation and increased nuclear decommissioning amortization related to the previous decision to early retire the Clinton and Quad Cities nuclear facilities in 2016 compared to the decision to early retire the Three Mile Island nuclear facility in 2017.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. Depreciation and amortization expense increased primarily due to accelerated depreciation and increased nuclear decommissioning amortization related to the previous decision to early retire the Clinton and Quad Cities nuclear facilities in 2016, and increased depreciation expense due to ongoing capital expenditures.
Taxes Other Than Income
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The increase in taxes other than income was primarily due to increased real estate taxes and sales and use taxes.

Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The increase in taxes other than income was primarily due to an increase in gross receipts tax.
Gain (Loss) on Sales of Assets
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The increase in gain (loss) on sales of assets is primarily due to certain Generation projects and contracts being terminated or renegotiated in 2016, partially offset by a gain associated with Generation’s sale of the retired New Boston generating site in 2016.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The decrease in gain (loss) on sales of assets is primarily related to the one-time recognition for a loss on sale of assets pursuant to Generation's strategic decision in the fourth quarter of 2016 to narrow the scope and scale of its growth and development activities, partially offset by a gain associated with Generation's sale of the retired New Boston generating site in 2016.
Bargain Purchase Gain
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The increase in the Bargain purchase gain is related to the result of the gain associated with the FitzPatrick acquisition. Refer to Note 4 — Mergers, Acquisitions and Dispositions of the Combined Notes to the Consolidated Financial Statements for additional information.
Gain on Deconsolidation of Business
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The increase in the Gain on deconsolidation of business is related to the deconsolidation of EGTP's net liabilities, which included the previously impaired assets and related debt, as a result of the November 2017 bankruptcy filing. Refer to Note 4 — Mergers, Acquisitions and Dispositions of the Combined Notes to the Consolidated Financial Statements for additional information.
Interest Expense
The changes in interest expense for 2017 compared to 2016 and 2016 compared to 2015 consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Interest expense on long-term debt$
 $8
Interest expense on interest rate swaps(2) 1
Interest expense on tax settlements12
 16
Other interest expense66
 (26)
(Decrease) increase in interest expense, net$76
 $(1)

Other, Net
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. The increase in Other, net primarily reflects the net increase in realized and unrealized gains related to the NDT fund investments of Generation’s Non-Regulatory Agreement Units as described in the table below.  Other, net also reflects $209 million and $80 million for the years ended December 31, 2017 and 2016, respectively, related to the contractual elimination of income tax expense associated with the NDT fund investments of the Regulatory Agreement Units. Refer to Note 15 — Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional information regarding NDT fund investments.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The increase in Other, net primarily reflects the net increase in realized and unrealized gains related to the NDT fund investments of Generation’s Non-Regulatory Agreement Units as described in the table below.  Other, net also reflects $80 million and $(22) million for the years ended December 31, 2016 and 2015, respectively, related to the contractual elimination of income tax expense associated with the NDT fund investments of the Regulatory Agreement Units. Refer to Note 15 — Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional information regarding NDT fund investments.
The following table provides unrealized and realized gains (losses) on the NDT funds of the Non-Regulatory Agreement Units recognized in Other, net for 2017, 2016 and 2015:
 2017 2016 2015
Net unrealized gains (losses) on decommissioning trust funds$521
 $194
 $(197)
Net realized gains on sale of decommissioning trust funds95
 35
 66
Effective Income Tax Rate
Generation’s effective income tax rates for the years ended December 31, 2017, 2016 and 2015 were (96.2)%, 33.2% and 27.1%, respectively. See Note 14 — Income Taxes of the Combined Notes to Consolidated Financial Statements for further discussion of the change in the effective income tax rate.

Results of Operations—ComEd
 2017 2016 Favorable (unfavorable) 2017 vs. 2016 variance 2015 Favorable (unfavorable) 2016 vs. 2015 variance
Operating revenues$5,536
 $5,254
 $282
 $4,905
 $349
Purchased power expense1,641
 1,458
 (183) 1,319
 (139)
Revenues net of purchased power expense(a)(b)
3,895
 3,796
 99
 3,586
 210
Other operating expenses         
Operating and maintenance1,427
 1,530
 103
 1,567
 37
Depreciation and amortization850
 775
 (75) 707
 (68)
Taxes other than income296
 293
 (3) 296
 3
Total other operating expenses2,573
 2,598
 25
 2,570
 (28)
Gain on sales of assets1
 7
 (6) 1
 6
Operating income1,323
 1,205
 118
 1,017
 188
Other income and (deductions)         
Interest expense, net(361) (461) 100
 (332) (129)
Other, net22
 (65) 87
 21
 (86)
Total other income and (deductions)(339) (526) 187
 (311) (215)
Income before income taxes984
 679
 305
 706
 (27)
Income taxes417
 301
 (116) 280
 (21)
Net income$567
 $378
 $189
 $426
 $(48)
__________
(a)ComEd evaluates its operating performance using the measure of Revenue net of purchased power expense. ComEd believes that Revenue net of purchased power expense is a useful measurement because it provides information that can be used to evaluate its operational performance. In general, ComEd only earns margin based on the delivery and transmission of electricity. ComEd has included its discussion of Revenue net of purchased power expense below as a complement to the financial information provided in accordance with GAAP. However, Revenue net of purchased power expense is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.
(b)For regulatory recovery mechanisms, including ComEd’s electric distribution and transmission formula rates, and riders, revenues increase and decrease i) as fully recoverable costs fluctuate (with no impact on net earnings), and ii) pursuant to changes in rate base, capital structure and ROE (which impact net earnings).
Net Income
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016.ComEd’s Net income for the year ended December 31, 2017 was higher than the same period in 2016 primarily due to the recognition of the penalty and the after-tax interest due on the asserted penalty related to the Tax Court's decision on Exelon's like-kind exchange tax position in 2016 and increased electric distribution and transmission formula rate earnings (reflecting the impacts of increased capital investment and higher allowed electric distribution ROE). The higher Net income was partially offset by the impact of weather conditions in 2016. See Revenue Decoupling discussion below for additional information on the impact of weather.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015.ComEd’s Net income for the year ended December 31, 2016 was lower than the same period in 2015 primarily due to the recognition of the penalty and the after-tax interest due on the asserted penalty related to the Tax Court's decision on Exelon's like-kind exchange tax position, partially offset by increased electric

distribution and transmission formula rate earnings (reflecting the impacts of increased capital investment, partially offset by lower allowed electric distribution ROE) and favorable weather.
Revenues Net of Purchased Power Expense
There are certain drivers of Operating revenues that are fully offset by their impact on Purchased power expense, such as commodity, REC and ZEC procurement costs and participation in customer choice programs. ComEd is permitted to recover electricity, REC and ZEC procurement costs from retail customers without mark-up. Therefore, fluctuations in these costs have no impact on Revenue net of purchased power expense. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on ComEd’s electricity procurement process.
All ComEd customers have the choice to purchase electricity from a competitive electric generation supplier. Customer choice programs do not impact ComEd’s volume of deliveries, but do affect ComEd’s Operating revenues related to supplied energy, which is fully offset in Purchased power expense. Therefore, customer choice programs have no impact on Revenue net of purchased power expense.
Retail deliveries purchased from competitive electric generation suppliers (as a percentage of kWh sales) for the years ended December 31, 2017, 2016 and 2015, consisted of the following:
 For the Years Ended December 31,
 2017 2016 2015
Electric70% 72% 76%
Retail customers purchasing electric generation from competitive electric generation suppliers at December 31, 2017, 2016 and 2015 consisted of the following:
 December 31, 2017 December 31, 2016 December 31, 2015
 Number of customers % of total retail customers Number of customers % of total retail customers Number of customers % of total retail customers
Electric1,371,700
 34% 1,502,900
 38% 1,655,400
 42%

The changes in ComEd’s Revenue net of purchased power expense for the year ended December 31, 2017, compared to the same period in 2016, and for the year ended December 31, 2016, compared to the same period in 2015, consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Weather(a)
$(36) $54
Volume(a)
(5) (2)
Pricing and customer mix(a)
(18) 14
Electric distribution revenue170
 69
Transmission revenue60
 97
Energy efficiency revenue(b)
16
 
Regulatory required programs(b)
(85) (31)
Uncollectible accounts recovery, net(7) (13)
Other4
 22
Total increase$99
 $210
__________
(a)For the year ended December 31, 2017, compared to the same period in 2016, the changes reflect the 2016 impacts of weather, volume and pricing and customer mix. As further described below, pursuant to the revenue decoupling provision in FEJA, ComEd began recording an adjustment to revenue in the first quarter of 2017 to eliminate the favorable or unfavorable impacts associated with variations in delivery volumes associated with above or below normal weather, number of customers or usage per customer.
(b)Beginning on June 1, 2017, ComEd is deferring energy efficiency costs as a regulatory asset that will be recovered through the energy efficiency formula rate over the weighted average useful life of the related energy efficiency measures.
Revenue Decoupling.The demand for electricity is affected by weather conditions. Very warm weather in summer months and very cold weather in other months are referred to as “favorable weather conditions” because these weather conditions result in increased customer usage. Conversely, mild weather reduces demand.
Under EIMA, ComEd's electric distribution formula rate provided for an adjustment to future billings if its earned ROE fell outside a 50-basis-point collar of its allowed ROE, which partially eliminated the impacts of weather and load on ComEd's revenue. As allowed under FEJA, ComEd will revise its electric distribution formula rate to eliminate the ROE collar beginning with the reconciliation filed in 2018 for the 2017 calendar year. Elimination of the ROE collar effectively offsets the favorable or unfavorable impacts to Operating revenues associated with variations in delivery volumes associated with above or below normalare not impacted by abnormal weather, numbers of customers or usage per customer. ComEd began recognizing the impactscustomer, or number of this change beginning in the first quarter of 2017. For the year ended December 31, 2017, ComEd recorded an increase to Electric distribution revenues of approximately $32 million to eliminate weather and load impacts.
For the year ended December 31, 2016, favorable weather conditions increased Operating revenues net of purchased power expense when compared to the prior year.
For the year ended December 31, 2016, the increase in Revenue net of purchased powercustomers as a result of pricing and customer mix is primarily attributablerevenue decoupling mechanisms implemented pursuant to higher overall effective rates due to decreased usage across all major customer classes and change in customer mix.FEJA.

Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 30-year period in ComEd’s service territory with cooling degree days generally having a more significant impact to ComEd, particularly during the summer months. The changes in heating and cooling degree days in ComEd’s service territory for the years ended December 31, 2017, 2016 and 2015 consisted of the following:
Heating and Cooling Degree-DaysFor the Years Ended December 31,   % Change
2017 2016 Normal 2017 vs. 2016 2017 vs. Normal
Heating Degree-Days5,435
 5,715
 6,198
 (4.9)% (12.3)%
Cooling Degree-Days991
 1,157
 893
 (14.3)% 11.0 %
Heating and Cooling Degree-DaysFor the Years Ended December 31,   % Change
2016 2015 Normal 2016 vs. 2015 2016 vs. Normal
Heating Degree-Days5,715
 6,091
 6,198
 (6.2)% (7.8)%
Cooling Degree-Days1,157
 806
 893
 43.5 % 29.6 %
Electric Distribution Revenue. EIMA and FEJA provide for a performance-based formula rate, which requires an annual reconciliation of the revenue requirement in effect to the actual costs that the ICC determines are prudently and reasonably incurred in a given year. Electric distribution revenue varies from year to year based upon fluctuations in the underlying costs (e.g., severe weather and storm restoration), investments being recovered, and allowed ROE. ComEd's allowed ROE is the annual average rate on 30-year treasury notes plus 580 basis points. In addition, ComEd's allowed ROE is subject to reduction if ComEd does not deliver the reliability and customer service benefits to which it has committed over the ten-year life of the investment program. DuringElectric distribution revenue increased during the year ended December 31, 2017, electric distribution revenue increased $170 million, primarily2022, compared to the same period in 2021, due to increased capital investment, increased Depreciation expense, higher allowed ROE due to an increase in treasuryU.S. Treasury rates, the impact of a higher rate base, and revenue decoupling impacts (as described above). During the year ended December 31, 2016, electric distribution revenue increased $69 million, primarily due to increased capital investment and Depreciation expense, partially offset by lower allowed ROE due to a decrease in treasury rates. See Operating and Maintenance Expense below and Note 3 — Regulatory Mattershigher fully recoverable costs.
56

Transmission Revenue.Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs, capital investments being recoveredrecovered, and the highest daily peak load, which is updated annually in January based on the prior calendar year. Generally, increases/decreases in the highest daily peak load will result in higher/lower transmission revenue. ForTransmission revenues increased during the yearsyear ended December 31, 2017 and 2016, ComEd recorded increased transmission revenue2022, compared to the same period in 2021, primarily due to increased capital investment,the impact of a higher Depreciation expenserate base and increased highest daily peak load. See Operating and Maintenance Expense below and Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.higher fully recoverable costs.
Energy Efficiency Revenue. Beginning June 1, 2017, FEJA provides for a performance-based formula rate, which requires an annual reconciliation of the revenue requirement in effect to the actual costs that the ICC determines are prudently and reasonably incurred in a given year. Under FEJA, energy efficiency revenue varies from year to year based upon fluctuationsfluctuations in the underlying costs, investments being recovered, and allowed ROE. ComEd’sEnergy efficiency revenue increased during the year ended December 31, 2022, compared to the same period in 2021, primarily due to higher allowed ROE due to an increase in U.S. Treasury rates, the impact of a higher rate base, and increased regulatory asset amortization, which is fully recoverable.
Other Revenue primarily includes assistance provided to other utilities through mutual assistance programs. Other revenue increased for the annual average rate on 30-year treasury notes plus 580 basis points. Beginning January 1, 2018, ComEd’s allowed ROE is subjectyear ended December 31, 2022, compared to a maximum downward or upward adjustment of 200 basis points if ComEd’s cumulative persisting annual MWh savings falls short of or exceeds specified percentage benchmarks of its annualthe same period in 2021, which primarily reflects mutual assistance revenues associated with storm restoration efforts.

incremental savings goal.Regulatory Required Programs represents revenues collected under approved riders to recover costs incurred for regulatory programs such as recoveries under the credit loss expense tariff, environmental costs associated with MGP sites, ETAC, and costs related to electricity, ZEC, CMC, and REC procurement. See Depreciation and amortization expense discussions below and Note 3 - Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Regulatory Required Programs. This represents the changeinformation regarding CMCs. ETAC is a retail customer surcharge collected by electric utilities operating in Operating revenues collected under approved rate ridersIllinois established by CEJA and remitted to recover costs incurredan Illinois state agency for regulatory programs such as ComEd's purchased power administrative coststo support clean energy jobs and energy efficiency and demand response through June 1, 2017 pursuant to FEJA.training. The riders are designed to provide full and current cost recovery. An equal and offsetting amount has beenThe costs of these programs are included in Operating and maintenance expense. SeePurchased power expense, Operating and maintenance expense, discussion belowDepreciation and amortization expense, and Taxes other than income. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries as ComEd remains the distribution service provider for additional information on included programs.
Uncollectible Accounts Recovery, Net.Uncollectible accounts recovery, net, represents recoveries under ComEd’s uncollectible accounts tariff. Seeall customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, ComEd either acts as the billing agent or the competitive supplier separately bills its own customers, and maintenancetherefore does not record Operating revenues or Purchased power expense discussion below for additional information on this tariff.
Other.Other revenue, which can vary period to period, includes rental revenue, revenue related to late payment charges, assistance providedthe electricity. For customers that choose to other utilities through mutual assistance programs, recoveries of environmentalpurchase electric generation from ComEd, ComEd is permitted to recover the electricity, ZEC, CMC, and REC procurement costs associated with MGP sites,without mark-up and recoveries of energy procurement costs.
Operatingtherefore records equal and Maintenance Expense
 
Year Ended
December 31,
 
Increase
(Decrease)
 
Year Ended
December 31,
 
Increase
(Decrease)
 2017 2016 2017 vs. 2016 2016 2015 2016 vs. 2015
Operating and maintenance expense—baseline$1,329
 $1,347
 $(18) $1,347
 $1,353
 $(6)
Operating and maintenance expense—regulatory required programs(a)
98
 183
 (85) 183
 214
 (31)
Total operating and maintenance expense$1,427
 $1,530
 $(103) $1,530
 $1,567
 $(37)
__________
(a)Operating and maintenance expense for regulatory required programs are costs for various legislative and/or regulatory programs that are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues.

The changesoffsetting amounts in Operating revenues and maintenancePurchased power expense related to the electricity, ZECs, CMCs, and RECs.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of ComEd's revenue disaggregation.
The decrease of $1,162 million for the year ended December 31, 2017,2022, compared to the same period in 2016,2021, in Purchased power expense is primarily due to the CMCs from the participating nuclear-powered generating facilities. This favorability is offset by a decrease in Operating revenues as part of regulatory required programs. See Note 3 - Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regarding CMCs.
57

The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Labor, other benefits, contracting, and materials$57 
Storm-related costs13 
BSC Costs13 
Pension and non-pension postretirement benefits expense(30)
Other
58 
Regulatory required programs(a)
(1)
Total increase$57 
__________
(a)ComEd is allowed to recover from or refund to customers the difference between its annual credit loss expense and the amounts collected in rates annually through a rider mechanism.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$63 
Regulatory asset amortization(b)
55 
Total increase$118 
__________
(a)Reflects ongoing capital expenditures.
(b)Includes amortization of ComEd's energy efficiency formula rate regulatory asset.

Taxes other than income taxes increased by $54 million for the year December 31, 2022, compared to the same period in 2021, primarily due to taxes related to ETAC, which is recovered through Operating revenues.
Interest expense, net increased $25 million for the year ended December 31, 2016,2022, compared to the same period in 2015, consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Baseline   
Labor, other benefits, contracting and materials$(41) $12
Pension and non-pension postretirement benefits expense(a)
3
 (24)
Storm-related costs2
 (9)
Uncollectible accounts expense—provision(b)
(6) 5
Uncollectible accounts expense—recovery, net(b)
(1) (18)
BSC costs(c)
44
 29
Other(19) (1)
 (18) (6)
Regulatory required programs   
Energy efficiency and demand response programs(d)
(85) (31)
Decrease in operating and maintenance expense$(103) $(37)
__________
(a)Primarily reflects the favorable impact of higher assumed pension and OPEB discount rates for the year ended December 31, 2016.
(b)ComEd is allowed to recover from or refund to customers the difference between the utility’s annual uncollectible accounts expense and the amounts collected in rates annually through a rider mechanism. ComEd recorded a net decrease in 2017 and 2016 in Operating and maintenance expense related to uncollectible accounts due to the timing of regulatory cost recovery. An equal and offsetting amount has been recognized in Operating revenues for the periods presented.
(c)Primarily reflects increased information technology support services from BSC in 2017 and 2016. For the year ended December 31, 2017, includes the $8 million write-off of a regulatory asset related to Constellation merger and integration costs for which recovery is no longer expected.
(d)Beginning on June 1, 2017 ComEd is deferring energy efficiency costs as a regulatory asset that will be recovered through the energy efficiency over the weighted average useful life of the related energy efficiency measures.
Depreciation and Amortization Expense
The increases in Depreciation and amortization expense for 2017 compared to 2016, and 2016 compared to 2015, consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Depreciation expense(a)
$60
 $58
Regulatory asset amortization(b)
7
 (5)
Other8
 15
Total increase$75
 $68
__________
(a)Primarily reflects ongoing capital expenditures for the years ended December 31, 2017 and 2016.
(b)Beginning in June 2017, includes amortization of ComEd's energy efficiency formula rate regulatory asset.
Taxes Other Than Income
Taxes other than income, which can vary year to year, include municipal and state utility taxes, real estate taxes, and payroll taxes. Taxes other than income taxes remained relatively consistent for the year ended December 31, 2017, compared to the same period in 2016, and for the year ended December 31, 2016, compared to the same period in 2015.

Gain on Sale of Assets
Gain on sale of assets decreased during the year ended December 31, 2017, compared to the same period in 2016, and increased during the year ended December 31, 2016, compared to the same period in 2015,2021, primarily due to the saleissuance of land during March 2016.debt in 2021 and 2022.
Interest Expense, Net
The increase (decrease) in Interest expense, net, for the year ended 2017, compared to the same period in 2016, and for the year ended 2016, compared to the same period in 2015, consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Interest expense related to uncertain tax positions(a)
$(104) $109
Interest expense on debt (including financing trusts)(b)
6
 24
Other(2) (4)
Increase (decrease) in interest expense, net$(100) $129
__________
(a)Primarily reflects the recognition of after-tax interest related to the Tax Court's decision on Exelon's like-kind exchange tax position in the 2016. For the year ended December 31, 2017, the decrease was partially offset by additional interest recorded in 2017 related to Exelon's like-kind exchange tax position. See Note 14—Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information.
(b)Primarily reflects an increase in interest expense due to the issuance of First Mortgage Bonds for the years ended December 31, 2016. See Note 13—Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on ComEd's debt obligations.
Other, Net
The increase (decrease) in Other, net, for the year ended 2017 compared to the same period in 2016, and for the year ended 2016 compared to the same period in 2015, consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Other income and deductions, net(a)
$88
 $(94)
AFUDC equity(2) 9
Other1
 (1)
Increase (decrease) in Other, net$87
 $(86)
__________
(a)Primarily reflects the recognition of the penalty related to the Tax Court's decision on Exelon's like-kind exchange tax position in 2016. See Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.
Effective Income Tax Rate
ComEd’s effective income tax rateswere 22.4%and 18.8% for the years ended December 31, 2017, 2016 2022and 2015, were 42.4%, 44.3% and 39.7%,2021, respectively. The decrease in the effective income tax rate for the year ended December 31, 2017 compared to the same period in 2016 is primarily due to the recognition of a non-deductible penalty related to the Tax Court's decision on Exelon's like-kind exchange tax position in the third quarter of 2016. See Note 1413 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.

ComEd Electric Operating Statistics and Revenue Detail
58
Retail Deliveries to customers (in GWhs)2017 2016 % Change 2017 vs. 2016 
Weather-
Normal
%
Change
 2015 % Change 2016 vs. 2015 
Weather-
Normal
%
Change
Retail Deliveries (a)
             
Residential26,292
 27,790
 (5.4)% (0.9)% 26,496
 4.9 % (0.6)%
Small commercial & industrial31,332
 31,975
 (2.0)% (0.7)% 31,717
 0.8 % (0.3)%
Large commercial & industrial27,467
 27,842
 (1.3)% (0.5)% 27,210
 2.3 % 1.5 %
Public authorities & electric railroads1,286
 1,298
 (0.9)% (0.3)% 1,309
 (0.8)% (0.8)%
Total retail deliveries86,377
 88,905
 (2.8)% (0.7)% 86,732
 2.5 % 0.2 %

PECO
 As of December 31,
Number of Electric Customers2017 2016 2015
Residential3,624,372
 3,595,376
 3,550,239
Small commercial & industrial378,345
 374,644
 370,932
Large commercial & industrial1,959
 2,007
 1,976
Public authorities & electric railroads4,775
 4,750
 4,820
Total4,009,451
 3,976,777
 3,927,967
Electric Revenue2017 2016 % Change 2017 vs. 2016 2015 % Change 2016 vs. 2015
Retail Sales(a)
         
Residential$2,746
 $2,597
 5.7 % $2,360
 10.0 %
Small commercial & industrial1,376
 1,316
 4.6 % 1,337
 (1.6)%
Large commercial & industrial461
 462
 (0.2)% 443
 4.3 %
Public authorities & electric railroads44
 45
 (2.2)% 42
 7.1 %
Total retail4,627
 4,420
 4.7 % 4,182
 5.7 %
Other revenue(b)
909
 834
 9.0 % 723
 15.4 %
Total electric revenue(c)
$5,536
 $5,254
 5.4 % $4,905
 7.1 %
__________
(a)Reflects delivery revenue and volume from customers purchasing electricity directly from ComEd and customers purchasing electricity from a competitive electric generation supplier, as all customers are assessed delivery charges. For customers purchasing electricity from ComEd, revenue also reflects the cost of energy and transmission.
(b)Other revenue primarily includes transmission revenue from PJM. Other revenue also includes rental revenue, revenue related to late payment charges, revenue from other utilities for mutual assistance programs and recoveries of remediation costs associated with MGP sites.
(c)Includes operating revenues from affiliates totaling $15 million, $15 million, and $4 million for the years ended December 31, 2017, 2016, and 2015, respectively.

Results of Operations—PECO
20222021Favorable (Unfavorable) Variance
Operating revenues$3,903 $3,198 $705 
Operating expenses
Purchased power and fuel1,535 1,081 (454)
Operating and maintenance992 934 (58)
Depreciation and amortization373 348 (25)
Taxes other than income taxes202 184 (18)
Total operating expenses3,102 2,547 (555)
Operating income801 651 150 
Other income and (deductions)
Interest expense, net(177)(161)(16)
Other, net31 26 
Total other income and (deductions)(146)(135)(11)
Income before income taxes655 516 139 
Income taxes79 12 (67)
Net income$576 $504 $72 
 2017 2016 Favorable (unfavorable) 2017 vs. 2016 variance 2015 Favorable (unfavorable) 2016 vs. 2015 variance
Operating revenues$2,870
 $2,994
 $(124) $3,032
 $(38)
Purchased power and fuel expense969
 1,047
 78
 1,190
 143
Revenues net of purchased power and fuel expense (a)
1,901
 1,947
 (46) 1,842
 105
Other operating expenses         
Operating and maintenance806
 811
 5
 794
 (17)
Depreciation and amortization286
 270
 (16) 260
 (10)
Taxes other than income154
 164
 10
 160
 (4)
Total other operating expenses1,246
 1,245
 (1) 1,214
 (31)
Gain on sales of assets
 
 
 2
 (2)
Operating income655
 702
 (47) 630
 72
Other income and (deductions)         
Interest expense, net(126) (123) (3) (114) (9)
Other, net9
 8
 1
 5
 3
Total other income and (deductions)(117) (115) (2) (109) (6)
Income before income taxes538
 587
 (49) 521
 66
Income taxes104
 149
 45
 143
 (6)
Net income$434
 $438
 $(4) $378
 $60
__________
(a)PECO evaluates its operating performance using the measures of revenue net of purchased power expense for electric sales and revenue net of fuel expense for gas sales. PECO believes revenue net of purchased power expense and revenue net of fuel expense are useful measurements of its performance because they provide information that can be used to evaluate its net revenue from operations. PECO has included the analysis below as a complement to the financial information provided in accordance with GAAP. However, revenue net of purchased power expense and revenue net of fuel expense figures are not a presentation defined under GAAP and may not be comparable to other companies’ presentations or more useful than the GAAP information provided elsewhere in this report.
Net Income
Year Ended December 31, 20172022 Compared to Year Ended December 31, 2016. PECO's net2021.Net income for the year ended December 31, 2017 was lower than the same period in 2016, increased by $72 million, primarily due to increases in electric and gas distribution rates and a decrease in Revenues net of purchased power and fuel expense as a result of unfavorable weather in PECO's service territory,storm costs, partially offset by the one-time non-cash impacts associated with the Tax CutsPennsylvania corporate income tax legislation passed in July 2022, and Jobs Actincreases in 2017.depreciation expense, credit loss expense, and interest expense.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. PECO's net income for the year ended December 31, 2016 was higher than the same periodThe changes in 2015, primarily due to an increase in Revenues net of purchased power and fuel expense as a result of increased electric distribution revenue pursuant to the 2015 PAPUC authorized electric distribution rate increase effective January 1, 2016.
Revenues Net of Purchased Power and Fuel Expense
Electric and natural gas revenue and purchased power and fuel expense are affected by fluctuations in commodity procurement costs. PECO's electric supply and natural gas cost rates charged to customers

are subject to adjustments as specified in the PAPUC-approved tariffs that are designed to recover or refund the difference between the actual cost of electric supply and natural gas and the amount included in rates in accordance with PECO's GSA and PGC, respectively. Therefore, fluctuations in electric supply and natural gas procurement costs have no impact on electric and natural gasOperating revenues net of purchased power and fuel expense.
Electric and natural gas revenue and purchased power and fuel expense are also affected by fluctuations in participation in the Customer Choice Program. All PECO customers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers, respectively. The customer’s choice of suppliers does not impact the volume of deliveries, but affects revenue collected from customers related to supplied energy and natural gas service. Customer Choice Program activity has no impact on electric and natural gas revenue net of purchase power and fuel expense.
Retail deliveries purchased from competitive electric generation and natural gas suppliers (as a percentage of kWh and mmcf sales, respectively) for the years ended December 31, 2017, 2016, and 2015 consisted of the following:
2022 vs. 2021
Increase (Decrease)
ElectricGasTotal
Weather$32 $10 $42 
Volume(21)(13)
Pricing138 25 163 
Transmission15 — 15 
Other15 21 
179 49 228 
Regulatory required programs327 150 477 
Total increase$506 $199 $705 
 For the Years Ended December 31,
 2017 2016 2015
Electric71% 70% 70%
Natural Gas26% 26% 25%
Retail customers purchasing electric generation and natural gas from competitive electric generation and natural gas suppliers at December 31, 2017, 2016, and 2015consisted of the following:
 December 31, 2017 December 31, 2016 December 31, 2015
 Number of customers % of total retail customers Number of customers % of total retail customers Number of customers % of total retail customers
Electric565,900
 35% 587,200
 36% 563,400
 35%
Natural Gas83,800
 16% 81,300
 16% 81,100
 16%
The changes in PECO’s Operating revenues net of purchased power and fuel expense for the years ended December 31, 2017 and December 31, 2016 compared to the same periods in 2016 and 2015, respectively, consisted of the following:
 2017 vs. 2016 2016 vs. 2015
 Increase (Decrease) Increase (Decrease)
 Electric Gas Total Electric Gas Total
Weather$(28) $4
 $(24) $1
 $(12) $(11)
Volume(18) 3
 (15) 6
 4
 10
Pricing8
 2
 10
 160
 (1) 159
Regulatory required programs(31) 
 (31) (46) 
 (46)
Other14
 
 14
 (7) 
 (7)
Total increase (decrease)$(55) $9
 $(46) $114
 $(9) $105

Weather.The demand for electricity and natural gas is affected by weather conditions. With respect to the electric business, very warm weather in summer months and, with respect to the electric and natural gas businesses, very cold weather in winter months are referred to as “favorable weather conditions” because these weather conditions result in increased deliveries of electricity and natural gas. Conversely, mild weather reduces demand. For the year ended December 31, 20172022 compared to the same period in 2016, and the year ended December 31, 2016 compared to the same period in 20152021, Operating revenues net of purchased power and fuel expense was reduced byrelated to weather increased due to the impact of unfavorablefavorable weather conditions in PECO’sPECO's service territory.
Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 30-year period in PECO’s service territory. The changes in heating and cooling degree days in PECO’s service territory for the years ended December 31, 2017 and December 31, 20162022 compared to the same periodsperiod in 2016 and 2015, respectively,2021 and normal weather consisted of the following:
59

For the Years Ended December 31, % Change
For the Years Ended December 31,   % Change
Heating and Cooling Degree-Days2017 2016 Normal 2017 vs. 2016 2017 vs. Normal
PECO Service TerritoryPECO Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days3,949
 4,041
 4,603
 (2.3)% (14.2)%Heating Degree-Days4,135 3,946 4,408 4.8 %(6.2)%
Cooling Degree-Days1,490
 1,726
 1,290
 (13.7)% 15.5 %Cooling Degree-Days1,743 1,586 1,443 9.9 %20.8 %
         
For the Years Ended December 31,   % Change
Heating and Cooling Degree-Days2016 2015 Normal 2016 vs. 2015 2016 vs. Normal
Heating Degree-Days4,041
 4,245
 4,603
 (4.8)% (12.2)%
Cooling Degree-Days1,726
 1,720
 1,290
 0.3 % 33.8 %
Volume.The decrease in Operating revenues net of purchased power and fuel expense related to delivery Electric volume, exclusive of the effects of weather, for the year ended December 31, 20172022 compared to the same period in 2016, was driven by electric and primarily reflects the impact of energy efficiency initiatives on customer usages for residential and small commercial and industrial electric classes, partially offset by solid customer growth. Additionally, the decrease represents a shift in the2021, decreased due to unfavorable load change. Natural gas volume profile across classes from residential and small commercial and industrial to large commercial and industrial.
The increase in Operating revenues net of purchased power and fuel expense related to delivery volume, exclusive of the effects of weather, for the year ended December 31, 20162022 compared to the same period in 2015, primarily reflects2021, increased due to favorable load change.
Electric Retail Deliveries to Customers (in GWhs)20222021% Change
Weather - Normal % Change(b)
Residential14,379 14,262 0.8 %(1.8)%
Small commercial & industrial7,701 7,597 1.4 %0.4 %
Large commercial & industrial14,046 14,003 0.3 %— %
Public authorities & electric railroads638 559 14.1 %14.1 %
Total electric retail deliveries(a)
36,764 36,421 0.9 %(0.4)%
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from PECO and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the impact of moderate economicchange in delivery volumes assuming normalized weather based on the historical 30-year average.

 As of December 31,
Number of Electric Customers20222021
Residential1,525,635 1,517,806 
Small commercial & industrial155,576 155,308 
Large commercial & industrial3,121 3,107 
Public authorities & electric railroads10,393 10,306 
Total1,694,725 1,686,527 

Natural Gas Deliveries to customers (in mmcf)20222021% Change
Weather - Normal % Change(b)
Residential42,135 39,580 6.5 %3.0 %
Small commercial & industrial23,449 21,361 9.8 %6.0 %
Large commercial & industrial31 34 (8.8)%12.3 %
Transportation25,011 25,081 (0.3)%(1.8)%
Total natural gas deliveries(a)
90,626 86,056 5.3 %2.4 %
__________
(a)Reflects delivery volumes from customers purchasing natural gas directly from PECO and customer growth partially offset by energy efficiency initiativescustomers purchasing electricity from a competitive natural gas supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on customer usages for gas and residential and small commercial and industrial electric classes. Additionally, the increase represents a shift in the volume profile across classes from large commercial and industrial classes to residential and small commercial and industrial classes for electric.historical 30-year average.
Pricing.The increase in Operating revenues net of purchased power expense as a result of pricing
 As of December 31,
Number of Gas Customers20222021
Residential502,944 497,873 
Small commercial & industrial44,957 44,815 
Large commercial & industrial
Transportation655 670 
Total548,565 543,364 
Pricing for the year ended December 31, 20172022 compared to the same period in 2016 reflects higher overall effective rates2021 increased primarily due to decreased usageincreases in electric and gas distribution rates charged to customers.
60

Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the residentialunderlying costs and small commercial and industrial customer classes. Operatingcapital investments being recovered.
Other Revenue primarily includes revenue related to late payment charges. Other revenues net of fuel expense as a result of pricing remained relatively consistent.
The increase in Operating revenues net of purchased power and fuel expense as a result of pricing for the year ended December 31, 20162022 compared to the same period in 2015 reflects an increase in2021, increased primarily due to revenue related to late payment charges.

electric distribution rates charged to customers. The increase in electric distribution rates was effective January 1, 2016 in accordance with the 2015 PAPUC approved electric distribution rate case settlement. See Note 3 — Regulatory Matters for further information.
Regulatory Required Programs.ThisPrograms represents the change in operating revenues collected under approved riders to recover costs incurred for regulatory programs such as smart meter, energy efficiency, PGC, and the GSA. The riders are designed to provide full and current cost recovery as well as a return. The costs of these programs are included in Purchased power and fuel expense, Operating and maintenance expense, Depreciation and amortization expense, and Income taxes. Refer to the Operating and maintenance expense discussion below for additional information on included programs.
Other.Other revenue, which can vary period to period, primarily includes wholesale transmission revenue, rental revenue, revenue related to late payment charges and assistance provided to other utilities through mutual assistance programs.
Operating and Maintenance Expense
 
Year
Ended December 31,
 Increase (Decrease) 
Year
Ended December 31,
 
Increase
(Decrease)
 2017 2016 2017 vs. 20162016 2015 2016 vs. 2015
Operating and maintenance
expense—baseline
$746
 $740
 $6
 $740
 $685
 $55
Operating and maintenance
expense—regulatory required programs (a)
60
 71
 (11) 71
 109
 (38)
Total operating and
maintenance expense
$806
 $811
 $(5) $811
 $794
 $17
__________ 
(a)Operating and maintenance expenses for regulatory required programs are costs for various legislative and/or regulatory programs that are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues.

The changes in Operating and maintenance expense for 2017 compared to 2016 and 2016 compared to 2015 consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015 
Baseline    
Labor, other benefits, contracting and materials$17
 $22
 
Storm-related costs(7) (9) 
Pension and non-pension postretirement benefits expense(3) (4) 
PHI merger integration costs
 6
 
BSC costs4
 36
(a) 
Uncollectible accounts expense(5) 1
 
Other
 3
 
 6
 55
 
Regulatory required programs    
Smart meter
 (28) 
Energy efficiency(10) (7) 
GSA
 (2) 
Other(1) (1) 
 (11) (38) 
Increase (decrease) in operating and maintenance expense$(5) $17
 
__________
(a) Primarily reflects increased information technology support services from BSC during 2016.
Depreciation and Amortization Expense
The changes in Depreciation and amortization expense for 2017 compared to 2016 and 2016 compared to 2015, consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Depreciation expense$17
 $5
Regulatory asset amortization(1) 5
Increase in depreciation and amortization expense$16

$10
Taxes Other Than Income
Taxes other than income, which can vary year to year, include municipal and state utility taxes, real estate taxes, and payroll taxes. Taxes other than income decreased for the year ended December 31, 2017, compared to the same period in 2016, primarily due to a decrease in gross receipts tax driven by decreases in electric revenue.
Taxes other than income increased for the year ended December 31, 2016, compared to the same period in 2015, primarily due to an increase in gross receipts tax driven by increases in electric revenue, which was impacted primarily by the new distribution rates that went into effect in January 2016.

Interest Expense, Net
The increase in Interest expense, net for the year ended December 31, 2017, compared to the same period in 2016, primarily reflects an increase in interest expense due to the issuance of First and Refunding Mortgage Bonds in September 2017.
The increase in Interest expense, net for the year ended December 31, 2016, compared to the same period in 2015, primarily reflects an increase in interest expense due to the issuance of First and Refunding Mortgage Bonds in October 2015.
Other, Net
Other, net remained relatively consistent for the year ended December 31, 2017, compared to the same period in 2016, and the year ended December 31, 2016, compared to the same period in 2015.
Effective Income Tax Rate
PECO’s effective income tax rates for the years ended December 31, 2017, 2016 and 2015 were 19.3%, 25.4% and 27.4%, respectively. See Note 14 — Income Taxes of the Combined Notes to Consolidated Financial Statements for further discussion of the change in effective income tax rates.
PECO Electric Operating Statistics and Revenue Detail
Retail Deliveries to Customers (in GWhs)2017 2016 % Change 2017 vs. 2016 
Weather-
Normal %
Change
 2015 % Change 2016 vs. 2015 
Weather-
Normal %
Change
Retail Deliveries (a)
             
Residential13,024
 13,664
 (4.7)% (1.8)% 13,630
 0.2 % 0.4 %
Small commercial & industrial7,968
 8,099
 (1.6)% (1.1)% 8,118
 (0.2)% 0.5 %
Large commercial & industrial15,426
 15,263
 1.1 % 1.4 % 15,365
 (0.7)% (1.4)%
Public authorities & electric railroads809
 890
 (9.1)% (9.1)% 881
 1.0 % 1.0 %
Total electric retail deliveries37,227
 37,916
 (1.8)% (0.5)% 37,994
 (0.2)% (0.3)%
 As of December 31,
Number of Electric Customers2017 2016 2015
Residential1,469,916
 1,456,585
 1,444,338
Small commercial & industrial151,552
 150,142
 149,200
Large commercial & industrial3,112
 3,096
 3,091
Public authorities & electric railroads9,569
 9,823
 9,805
Total1,634,149
 1,619,646
 1,606,434

Electric Revenue2017 2016 % Change 2017 vs. 2016 2015 % Change 2016 vs. 2015
Retail Sales (a)
         
Residential$1,505
 $1,631
 (7.7)% $1,599
 2.0 %
Small commercial & industrial401
 430
 (6.7)% 428
 0.5 %
Large commercial & industrial223
 234
 (4.7)% 221
 5.9 %
Public authorities & electric railroads30
 32
 (6.3)% 31
 3.2 %
Total retail2,159
 2,327
 (7.2)% 2,279
 2.1 %
Other revenue (b)
216
 204
 5.9 % 207
 (1.4)%
Total electric operating revenues (c)
$2,375
 $2,531
 (6.2)% $2,486
 1.8 %
__________
(a)Reflects delivery volumes and revenue from customers purchasing electricity directly from PECO and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges. For customers purchasing electricity from PECO, revenue also reflects the cost of energy and transmission.
(b)Other revenue includes transmission revenue from PJM and wholesale electric revenue.
(c)Total electric revenue includes operating revenues from affiliates totaling $6 million, $7 million and $1 million for the years ended December 31, 2017, 2016, and 2015, respectively.
PECO Gas Operating Statistics and Revenue Detail
Deliveries to customers (in mmcf)2017 2016 % Change 2017 vs. 2016 
Weather-
Normal %
Change
 2015 % Change 2016 vs. 2015 
Weather-
Normal %
Change
Retail Deliveries (a)
             
Retail sales58,457
 56,447
 3.6 % 1.2 % 59,003
 (4.3)% 1.5 %
Transportation and other26,382
 27,630
 (4.5)% (2.3)% 27,879
 (0.9)% (0.1)%
Total natural gas deliveries84,839
 84,077
 0.9 % 0.1 % 86,882
 (3.2)% 1.0 %
 As of December 31,
Number of Gas Customers2017 2016 2015
Residential477,213
 472,606
 467,263
Commercial & industrial43,892
 43,668
 43,160
Total retail521,105
 516,274
 510,423
Transportation771
 790
 827
Total521,876
 517,064
 511,250
Gas revenue2017 2016 % Change 2017 vs. 2016 2015 % Change 2016 vs. 2015
Retail Sales (a)
         
Retail sales$462
 $430
 7.4% $511
 (15.9)%
Transportation and other33
 33
 % 35
 (5.7)%
Total natural gas operating revenues (b)
$495
 $463
 6.9% $546
 (15.2)%
__________
(a)Reflects delivery volumes and revenue from customers purchasing natural gas directly from PECO and customers purchasing natural gas from a competitive natural gas supplier as all customers are assessed distribution charges. For customers purchasing natural gas from PECO, revenue also reflects the cost of natural gas.
(b)
Total natural gas revenue includes operating revenues from affiliates totaling $1 million for the years ended December 31, 2017, 2016 and 2015.

Results of Operations—BGE
 2017 2016 Favorable (unfavorable) 2017 vs. 2016 variance 2015 Favorable (unfavorable) 2016 vs. 2015 variance
Operating revenues$3,176
 $3,233
 $(57) $3,135
 $98
Purchased power and fuel expense1,133
 1,294
 161
 1,305
 11
Revenues net of purchased power and fuel expense(a)
2,043
 1,939
 104
 1,830
 109
Other operating expenses         
Operating and maintenance716
 737
 21
 683
 (54)
Depreciation and amortization473
 423
 (50) 366
 (57)
Taxes other than income240
 229
 (11) 224
 (5)
Total other operating expenses1,429
 1,389
 (40) 1,273
 (116)
Gain on sales of assets
 
 
 1
 (1)
Operating income614
 550
 64
 558
 (8)
Other income and (deductions)         
Interest expense, net(105) (103) (2) (99) (4)
Other, net16
 21
 (5) 18
 3
Total other income and (deductions)(89) (82) (7) (81) (1)
Income before income taxes525
 468
 57
 477
 (9)
Income taxes218
 174
 (44) 189
 15
Net income307
 294
 13
 288
 6
Preference stock dividends
 8
 8
 13
 5
Net income attributable to common shareholder$307
 $286
 $21
 $275
 $11
__________
(a)BGE evaluates its operating performance using the measures of revenue net of purchased power expense for electric sales and revenue net of fuel expense for gas sales. BGE believes revenues net of purchased power and fuel expense are useful measurements of its performance because they provide information that can be used to evaluate its net revenue from operations. BGE has included the analysis below as a complement to the financial information provided in accordance with GAAP. However, revenues net of purchased power and fuel expense figures are not a presentation defined under GAAP and may not be comparable to other companies’ presentations or more useful than the GAAP information provided elsewhere in this report.
Net Income Attributable to Common Shareholder
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016. Net income attributable to common shareholder was higher primarily due to an increase in Revenues net of purchased power and fuel expense and lower Operating and maintenance expense, partially offset by higher Depreciation and amortization expense and higher income tax expense. The increase in Revenues net of purchased power and fuel expense was primarily due to the impacts of the electric and natural gas distribution rate orders issued by the MDPSC in June 2016 and July 2016 and an increase in transmission formula rate revenues. The lower Operating and maintenance expense was primarily due to the absence of cost disallowances resulting from the 2016 distribution rate orders issued by the MDPSC and

decreased storm costs in 2017 partially offset by the favorable 2016 settlement of the Baltimore City conduit fee dispute. These items were partially offset by an increase in Depreciation and amortization expense primarily related to the initiation of cost recovery of the AMI programs under the distribution rate orders and the impacts of increased capital investment and higher income tax expense primarily resulting from higher taxable income as well as a 2016 favorable adjustment and 2017 impairment of certain transmission-related income tax regulatory assets.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015.Net income attributable to common shareholder was higher primarily due to lower income tax expense and decreased preference stock dividends partially offset by slightly lower operating income. The lower income tax expense was driven by a one-time adjustment associated with transmission-related regulatory assets. The slight decrease in operating income was driven by an increase in Operating and maintenance expense as a result of cost disallowances which reduced certain regulatory assets and other long-lived assets stemming from the distribution rate orders issued by the MDPSC in June 2016 and July 2016 and increased storm costs. This increase in Operating and maintenance expense was offset by an increase in Revenues net of purchased power and fuel expense, primarily as a result of an increase in transmission formula rate revenues and higher electric and natural gas revenues as a result of the distribution rate orders issued by the MDPSC in June 2016 and July 2016.
Revenues Net of Purchased Power and Fuel Expense
There are certain drivers to Operating revenues that are offset by their impact on Purchased power and fuel expense, such as commodity procurement costs and programs allowing customers to select a competitive electric or natural gas supplier. Operating revenues and Purchased power and fuel expense are affected by fluctuations in commodity procurement costs. BGE’s electric and natural gas rates charged to customers are subject to periodic adjustments that are designed to recover or refund the difference between the actual cost of purchased electric power and purchased natural gas and the amount included in rates in accordance with the MDPSC’s market-based SOS and gas commodity programs, respectively. Therefore, fluctuations in electric supply and natural gas procurement costs have no impact on Revenues net of purchased power and fuel expense.
Electric and natural gas revenue and purchased power and fuel expense are also affected by fluctuations in the number of customers electing to use a competitive supplier for electricity and/or natural gas. All BGE customersCustomers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. The customers'Customer choice of suppliers doesprograms do not impact the volume of deliveries but does affect revenue collected fromas PECO remains the distribution service provider for all customers relatedand charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to supplied electricity and natural gas.
Retail deliveries purchased from competitive electricity and natural gas suppliers (as a percentage of kWh and mmcf sales, respectively) for the years ended December 31, 2017, 2016 and 2015 consisted of the following:
 
For the Years Ended December 31,

 2017 2016 2015
Electric60% 59% 61%
Natural Gas55% 57% 56%

The number of retail customers purchasing electricity andpurchase electric generation or natural gas from competitive suppliers, at December 31, 2017, 2016PECO either acts as the billing agent or the competitive supplier separately bills its own customers and 2015 consisted of the following:
 December 31, 2017 December 31, 2016 December 31, 2015
 Number of Customers % of total retail customers Number of Customers % of total retail customers Number of Customers % of total retail customers
Electric341,000
 27% 337,000
 27% 343,000
 27%
Natural Gas151,000
 22% 151,000
 23% 154,000
 23%
The changes in BGE’stherefore PECO does not record Operating revenues net of purchasedor Purchased power and fuel expense for the year ended December 31, 2017 comparedrelated to the same periodelectricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from PECO, PECO is permitted to recover the electricity, natural gas, and REC procurement costs without mark-up and therefore records equal and offsetting amounts in 2016Operating revenues and for the year ended December 31, 2016 comparedPurchased power and fuel expense related to the same period in 2015, respectively, consisted of the following:
 2017 vs. 2016 2016 vs. 2015
 Increase (Decrease) Increase (Decrease)
 Electric Gas Total Electric Gas Total
Distribution rate increase$21
 $29
 $50
 $24
 $22
 $46
Regulatory required programs17
 3
 20
 10
 (5) 5
Transmission revenue18
 
 18
 30
 
 30
Other, net5
 11
 16
 24
 4
 28
Total increase$61
 $43

$104
 $88
 $21
 $109
Distribution Rate Increase. During the years ended December 31, 2017 and December 31, 2016, the increases in distribution revenues were primarily due to the impact of the electric andelectricity, natural gas, distribution rate changes that became effective in June 2016 in accordance with the electric and natural gas distribution rate case orders in June 2016 and July 2016. RECs.
See Note 35Regulatory MattersSegment Information of the Combined Notes to Consolidated Financial Statements for additional information.the presentation of PECO's revenue disaggregation.
Revenue Decoupling.The demand for electricity and natural gas is affected by weather and usage conditions. The MDPSC allows BGE to record a monthly adjustment to its electric and natural gas distribution revenue from all residential customers, commercial electric customers, the majorityincrease of large industrial electric customers, and all firm service natural gas customers to eliminate the effect of abnormal weather and usage patterns per customer on BGE's electric and natural gas distribution volumes, thereby recovering a specified dollar amount of distribution revenue per customer, by customer class, regardless of fluctuations in actual consumption levels. This allows BGE to recognize revenue at MDPSC-approved distribution charges per customer, regardless of what BGE's actual distribution volumes were for a billing period. Therefore, while this revenue is affected by customer growth (i.e., increase in the number of customers), it will not be affected by volatility in actual weather or usage conditions (i.e., changes in consumption per customer). BGE bills or credits customers in subsequent months for the difference between approved revenue levels under revenue decoupling and actual customer billings.

Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 30-year period in BGE’s service territory. The changes in heating and cooling degree days in BGE’s service territory$454 million for the year ended December 31, 20172022, compared to the same period in 20162021, in Purchased power and fuel expense is fully offset in Operating revenues as part of regulatory required programs.
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
 (Decrease) Increase
Storm-related costs$(34)
Pension and non-pension postretirement benefits expense(9)
Credit loss expense
Labor, other benefits, contracting, and materials20 
BSC costs29 
Other(a)
30 
42 
Regulatory Required Programs16 
Total increase$58 
__________
(a) Primarily reflects an increase in charitable contributions.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
 Increase
Depreciation and amortization(a)
$24 
Regulatory asset amortization
Total increase$25 
__________
(a)Depreciation and amortization expense increased primarily due to ongoing capital expenditures.
61

Taxes other than income taxes increased by $18 million for the year ended December 31, 20162022, compared to the same period in 2015, respectively, and normal weather consisted of the following:
 For the Year Ended December 31, Normal % Change
Heating and Cooling Degree-Days2017 20162017 vs. 2016 2017 vs. Normal
Heating Degree-Days4,190
 4,427
 4,666
 (5.4)% (10.2)%
Cooling Degree-Days940
 998
 875
 (5.8)% 7.4 %
 For the Year Ended December 31, Normal % Change
Heating and Cooling Degree-Days2016 20152016 vs. 2015 2016 vs. Normal
Heating Degree-Days4,427
 4,666
 4,684
 (5.1)% (5.5)%
Cooling Degree-Days998
 924
 876
 8.0 % 13.9 %
Regulatory Required Programs.Revenue from regulatory required programs are billings for the costs of various legislative and/or regulatory programs that are recoverable from customers on a full and current basis. These programs are designed to provide full cost recovery, as well as a return in certain instances. The costs of these programs are included in Operating and maintenance expense, Depreciation and amortization expense and Taxes other than income in BGE's Consolidated Statements of Operations and Comprehensive Income.
Transmission Revenue. Under a FERC approved formula, transmission revenue varies from year to year based upon rate adjustments to reflect fluctuations in the underlying costs, capital investments being recovered and other billing determinants. During the years ended December 31, 2017 and 2016, the increase in transmission revenue was2021, primarily due to increases in capital investment and operating and maintenance expense recoveries. See Operating and Maintenance Expense below and Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Other, Net. Other net revenue,higher Pennsylvania gross receipts tax, which can vary from period to period, primarily includes late payment fees and other miscellaneous revenue such as service application fees, assistance provided to other utilities through BGE's mutual assistance program and recoveries of electric supply and natural gas procurement costs.

Operating and Maintenance Expense
 
Year Ended
December 31,
 
Increase
(Decrease)
 
Year Ended
December 31,
 
Increase
(Decrease)
 2017 2016 2017 vs. 2016 2016 2015 2016 vs. 2015
Operating and maintenance
expense—baseline
$672
 $701
 $(29) $701
 $636
 $65
Operating and maintenance
expense—regulatory required programs(a)
44
 36
 8
 36
 47
 (11)
Total operating and maintenance expense$716
 $737
 $(21) $737
 $683
 $54
__________
(a)Operating and maintenance expense for regulatory required programs are costs for various legislative and/or regulatory programs that are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues.
The changesis offset in Operating revenues, and maintenanceoffset by lower Pennsylvania use tax.
Interest expense, net increased $16 million for the year ended December 31, 20172022, compared to the same period in 2016 and the year ended December 31, 2016 compared to the same period in 2015 consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Baseline   
Impairment on long-lived assets and losses on regulatory assets(a)
$(50) $52
Labor, other benefits, contracting and materials(11) 7
Storm-related costs(13) 18
Uncollectible accounts expense7
 (14)
BSC costs16
 11
Conduit lease settlement(b)
15
 (15)
Other7
 6
 $(29) $65
Regulatory Required Programs   
Other8
 (11)
 8
 (11)
Total (decrease) increase$(21) $54
__________ 
(a)
See Note 3Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
(b)
See Note 23— Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information.

Depreciation and Amortization
The changes in Depreciation and amortization expense for the year ended December 31, 2017 compared to the same period in 2016 and December 31, 2016 compared to the same period in 2015 consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Depreciation expense(a)
$13
 $10
Regulatory asset amortization(b)
25
 31
Regulatory required programs(c)
12
 16
Increase in depreciation and amortization expense$50
 $57
__________ 
(a)Depreciation expense increased due to ongoing capital expenditures.
(b)Regulatory asset amortization increased primarily due to an increase in regulatory asset amortization related to energy efficiency programs and the initiation of cost recovery of the AMI programs under the final electric and natural gas distribution rate case order issued by the MDPSC in June 2016. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
(c)Depreciation and amortization expenses for regulatory required programs are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues.
Taxes Other Than Income
Taxes other than income, which can vary period to period, include municipal and state utility taxes, real estate taxes and payroll taxes. Taxes other than income taxes increased for the year ended December 31, 2017 compared to the same period in 2016, and for the year ended December 31, 2016 compared to the same period in 2015,2021, primarily due to an increasethe issuance of debt in property taxes.2021 and 2022 and increases in interest rates.
Interest Expense, Net
Interest expense, net remained relatively consistent for the year ended December 31, 2017 compared to the same period in 2016, and for the year ended December 31, 2016 compared to the same period in 2015.
Other, Net
Other, net remained relatively consistent for the year ended December 31, 2017, compared to the same period in 2016, and the year ended December 31, 2016, compared to the same period in 2015.
Effective Income Tax Rate
BGE’s effective income tax rates were 12.1% and 2.3% for the years ended December 31, 2017, 20162022 and 2015 were 41.5%, 37.2% and 39.6%,2021, respectively. The change in effective tax rate is primarily related to the one-time non-cash impacts associated with the Pennsylvania corporate income tax legislation passed in July 2022. See Note 1413 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.

BGE Electric Operating Statistics and Revenue Detail
62
Retail Deliveries to Customers (in GWhs)2017 2016 % Change 2017 vs. 2016 
Weather-
Normal %
Change
 2015 % Change 2016 vs. 2015 
Weather-
Normal %
Change
Retail Deliveries(a)
             
Residential12,094
 12,740
 (5.1)% (2.8)% 12,598
 1.1 % (3.2)%
Small commercial & industrial 
2,921
 3,040
 (3.9)% (4.9)% 3,119
 (2.5)% 2.7 %
Large commercial & industrial 
13,688
 13,957
 (1.9)% (2.4)% 14,293
 (2.4)% (1.6)%
Public authorities & electric railroads268
 283
 (5.3)% (3.0)% 294
 (3.7)% (8.9)%
Total electric deliveries28,971
 30,020
 (3.5)% (2.8)% 30,304
 (0.9)% (1.9)%

 As of December 31,
Number of Electric Customers2017 2016 2015
Residential1,160,783
 1,150,096
 1,137,934
Small commercial & industrial 
113,594
 113,230
 113,138
Large commercial & industrial 
12,155
 12,053
 11,906
Public authorities & electric railroads272
 280
 285
Total1,286,804
 1,275,659
 1,263,263
Electric Revenue2017 2016 % Change 2017 vs. 2016 2015 % Change 2016 vs. 2015
Retail Sales(a)
         
Residential$1,428
 $1,554
 (8.1)% $1,449
 7.2 %
Small commercial & industrial 
266
 277
 (4.0)% 273
 1.5 %
Large commercial & industrial 
450
 449
 0.2 % 469
 (4.3)%
Public authorities & electric railroads31
 35
 (11.4)% 32
 9.4 %
Total retail2,175
 2,315
 (6.0)% 2,223
 4.1 %
Other revenue(b)(c)
314
 294
 6.8 % 267
 10.1 %
Total electric revenue

$2,489
 $2,609
 (4.6)% $2,490
 4.8 %
__________
(a)Reflects delivery volumes and revenue from customers purchasing electricity directly from BGE and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges. For customers purchasing electricity from BGE, revenue also reflects the cost of energy and transmission.
(b)Other revenue primarily includes wholesale transmission revenue and late payment charges.
(c)Includes operating revenues from affiliates totaling $5 million, $7 million and less than $1 million for the years ended 2017, 2016 and 2015, respectively.

Table of Contents
BGE Natural Gas Operating Statistics and Revenue Detail
Deliveries to customers (in mmcf)2017 2016 % Change 2017 vs. 2016 
Weather-
Normal %
Change
 2015 % Change 2016 vs. 2015 
Weather-
Normal %
Change
Retail Deliveries(a)
             
Retail sales89,337
 96,808
 (7.7)% (4.2)% 96,618
 0.2 % 3.5%
Transportation and other(b)
3,615
 5,977
 (39.5)% n/a
 6,238
 (4.2)% n/a
Total natural gas deliveries92,952
 102,785
 (9.6)% (4.2)% 102,856
 (0.1)% 3.5%
 As of December 31,
Number of Gas Customers2017 2016 2015
Residential629,690
 623,647
 616,994
Commercial & industrial44,247
 44,255
 44,119
Total673,937
 667,902
 661,113
Natural Gas revenue2017 2016 % Change 2017 vs. 2016 2015 % Change 2016 vs. 2015
Retail Sales(a)
         
Retail sales$655
 $593
 10.5% $607
 (2.3)%
Transportation and other(b)
32
 31
 3.2% 38
 (18.4)%
Total natural gas revenues(c)

$687
 $624
 10.1% $645
 (3.3)%
__________ 
(a)Reflects delivery volumes and revenue from customers purchasing natural gas directly from BGE and customers purchasing natural gas from a competitive natural gas supplier as all customers are assessed distribution charges. For customers purchasing natural gas from BGE, revenue also reflects the cost of natural gas.
(b)Transportation and other natural gas revenue includes off-system revenue of 3,615 mmcfs ($21 million), 5,977 mmcfs ($23 million), and 6,238 mmcfs ($35 million) for the years ended 2017, 2016 and 2015, respectively.
(c)Includes operating revenues from affiliates totaling $11 million, $14 million, and $14 million for the years ended 2017, 2016 and 2015, respectively.
Results of Operations—PHIBGE
PHI’s results
20222021Favorable (Unfavorable) Variance
Operating revenues$3,895 $3,341 $554 
Operating expenses
Purchased power and fuel1,567 1,175 (392)
Operating and maintenance877 811 (66)
Depreciation and amortization630 591 (39)
Taxes other than income taxes302 283 (19)
Total operating expenses3,376 2,860 (516)
Operating income519 481 38 
Other income and (deductions)
Interest expense, net(152)(138)(14)
Other, net21 30 (9)
Total other income and (deductions)(131)(108)(23)
Income before income taxes388 373 15 
Income taxes(35)(43)
Net income$380 $408 $(28)
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income decreased $28 million primarily due to an asset impairment in 2022 and an increase in depreciation expense, credit loss expense, and interest expense, partially offset by favorable impacts of operations include the resultsmulti-year plans and a decrease in storm costs. See Note 11 — Asset Impairments for additional information on the asset impairment.
The changes in Operating revenues consisted of its three reportable segments, Pepco, DPLthe following:
2022 vs. 2021
Increase
ElectricGasTotal
Distribution$70 $27 $97 
Transmission14 — 14 
Other10 10 20 
94 37 131 
Regulatory required programs272 151 423 
Total increase$366 $188 $554 
63

Revenue Decoupling. The demand for electricity and ACEnatural gas is affected by weather and customer usage. However, Operating revenues are not impacted by abnormal weather or usage per customer as a result of a monthly rate adjustment that provides for fixed distribution revenue per customer by customer class. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on revenue decoupling for BGE.
As of December 31,
Number of Electric Customers20222021
Residential1,204,429 1,195,929 
Small commercial & industrial115,524 115,049 
Large commercial & industrial12,839 12,637 
Public authorities & electric railroads266 268 
Total1,333,058 1,323,883 
As of December 31,
Number of Gas Customers20222021
Residential655,373 651,589 
Small commercial & industrial38,207 38,300 
Large commercial & industrial6,233 6,179 
Total699,813 696,068 
Distribution Revenue increased for the year ended December 31, 2022 compared to the same period in 2021, due to favorable impacts of the multi-year plans.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs and capital investments being recovered. Transmission revenue increased for the year ended December 31, 2022 compared to the same period in 2021 primarily due to increases in underlying costs and capital investments.
Other Revenue includes revenue related to late payment charges, mutual assistance, off-system sales, and service application fees. Other revenue increased for the year ended December 31, 2022 compared to the same period in 2021, primarily due to an increase in late fees charged to customers.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as conservation, demand response, STRIDE, and the POLR mechanism. The riders are designed to provide full and current cost recovery, as well as a return in certain instances. The costs of these programs are included in Purchased power and fuel expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity and natural gas from competitive electric generation and natural gas suppliers. Customer choice programs do not impact the volume of deliveries as BGE remains the distribution service provider for all periods presented below.customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For "Predecessor" reporting periods, PHI's results of operations also includecustomers that choose to purchase electric generation or natural gas from competitive suppliers, BGE acts as the results of PESbilling agent and PCI. therefore does not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from BGE, BGE is permitted to recover the electricity and natural gas procurement costs from customers and therefore records the amounts related to the electricity and/or natural gas in Operating revenues and Purchased power and fuel expense. BGE recovers electricity and natural gas procurement costs from customers with a slight mark-up.
See Note 255 — Segment Information of the Combined Notes to Consolidated Financial Statements for additional information regarding PHI's reportable segments. All material intercompany accounts and transactions have been eliminated in consolidation. A separate specific discussionthe presentation of the resultsBGE's revenue disaggregation.
The increase of operations for Pepco, DPL and ACE is presented elsewhere in this report.
As a result of the PHI Merger, the following consolidated financial results present two separate reporting periods for 2016. The "Predecessor" reporting periods represent PHI's results of operations for the period of January 1, 2016 to March 23, 2016 and the year ended December 31, 2015. The "Successor" reporting periods represents PHI's results of operations for the year ended December 31, 2017 and for the period of March 24, 2016 to December 31, 2016. All amounts presented below are before the impact of income taxes, except as noted.

 Successor  Predecessor
 For the Year Ended December 31, March 24 to December 31,  January 1 to
March 23,
 For the Year Ended December 31,
 2017 2016  2016 2015
Operating revenues$4,679
 $3,643
  $1,153
 $4,935
Purchased power and fuel1,716
 1,447
  497
 2,073
Revenues net of purchased power and fuel expense(a)
2,963
 2,196
  656

2,862
Other operating expenses        
Operating and maintenance1,068
 1,233
  294
 1,156
Depreciation and amortization675
 515
  152
 624
Taxes other than income452
 354
  105
 455
Total other operating expenses2,195
 2,102
  551

2,235
Gain (loss) on sales of assets1
 (1)  
 46
Operating income769
 93
  105
 673
Other income and (deductions)        
Interest expense, net(245) (195)  (65) (280)
Other, net54
 44
  (4) 88
Total other income and (deductions)(191) (151)  (69)
(192)
Income (loss) before income taxes578
 (58)  36
 481
Income taxes217
 3
  17
 163
Equity in earnings of unconsolidated affiliates1
 
  
 
Net income (loss) from continuing operations362
 (61)  19

318
Net income from discontinued operations
 
  
 9
Net income (loss) attributable to membership interest/common shareholders$362
 $(61)  $19
 $327
__________
(a)PHI evaluates its operating performance using the measure of revenue net of purchased power and fuel expense for electric and natural gas sales. PHI believes revenue net of purchased power and fuel expense is a useful measurement because it provides information that can be used to evaluate its operational performance. PHI has included the analysis below as a complement to the financial information provided in accordance with GAAP. However, Revenue net of purchased power and fuel expense is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.
Successor Year Ended December 31, 2017
PHI's Net income was $362$392 million for the year ended December 31, 2017. There were no significant2022 compared to the same period in 2021 in Purchased power and fuel expense is fully offset in Operating revenues as part of regulatory required programs.
64

The changes in the underlying trends affecting PHI's results of operations during the Successor year except for the impact of increases in electric distribution and natural gas rates within Revenue net of purchased power expense (Pepco electric distribution rates effective November 2016 and October 2017 in Maryland, Pepco electric distribution rates effective August 2017 in the District of Columbia, DPL electric distribution rates effective February 2017 in Maryland, DPL electric distribution and natural gas rates effective July 2016 and December 2016 in Delaware, and ACE electric distribution rates effective August 2016 and

October 2017 in New Jersey). Operating and maintenance expense incurred included consisted of the deferral of merger-related, rate case, and customer billing system costs to regulatory assets and lower uncollectible accounts expense, partially offset by a pre-tax impairment charge of $25 million. Income taxes expense incurred included unrecognized tax benefits of $59 millionfollowing:
2022 vs. 2021
Increase (Decrease)
Asset impairment(a)
$48 
BSC costs14 
Credit loss expense
Labor, other benefits, contracting, and materials
Storm-related costs(11)
Pension and non-pension postretirement benefits expense(12)
Other12 
62 
Regulatory required programs
Total increase$66 
__________
(a)See Note 11 — Asset Impairments for uncertain tax positions related to the deductibility of certain merger commitments in the first quarter of 2017, and was offset by a $27 million December 2017 impairment of certain transmission-related income tax regulatory assets and the one-time non-cash impacts of $35 million associated with the Tax Cuts and Jobs Act in 2017. For moreadditional information on 2017 results please referthe asset impairment.
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$35 
Regulatory required programs
Regulatory asset amortization
Total increase$39 
__________
(a)Depreciation and amortization increased primarily due to Results of Operations for Pepco, DPL, and ACE.ongoing capital expenditures.
PHI's effectiveTaxes other than income tax ratetaxes increased by $19 million for the year ended December 31, 2017 was 37.5%.2022 compared to the same period in 2021, primarily due to increased property taxes.
Interest expense, net increased $14 million for the year ended December 31, 2022 compared to the same period in 2021, due to the issuance of debt in 2021 and 2022 and increases in interest rates.
Effective income tax rates were 2.1% and (9.4)% for the years ended December 31, 2022 and 2021, respectively. The change is primarily due to decreases in the multi-year plans' accelerated income tax benefits in 2022 compared to 2021. See Note 143Income TaxesRegulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information regardingon both the components of effective income tax rates.
Successor Period of March 24, 2016 to December 31, 2016
PHI's Net loss for the Successor period of March 24, 2016 to December 31, 2016 was $61 million. There were no significant changes in the underlying trends affecting PHI's results of operations during the Successor period March 24, 2016 to December 31, 2016 except for the pre-tax recording of $392 million of non-recurring merger-related costs including merger integrationthree-year electric and merger commitments within Operatingnatural gas distribution multi-year plans and maintenance expense. For more information on 2016 results please refer to Results of Operations for Pepco, DPL and ACE.
PHI's effective income tax rate for the period of March 24, 2016 to December 31, 2016 was (5.2)%. See Note 1413 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.
Predecessor Period
65

Results of Operations—PHI
PHI’s Results of Operations include the results of its three reportable segments, Pepco, DPL, and ACE. PHI also has a business services subsidiary, PHISCO, which provides a variety of support services and the costs are directly charged or allocated to March 23, 2016
the applicable subsidiaries. Additionally, the results of PHI's corporate operations include interest costs from various financing activities. All material intercompany accounts and transactions have been eliminated in consolidation. The following table sets forth PHI's GAAP consolidated Net income, by Registrant, for the Predecessoryear ended December 31, 2022 compared to the same period in 2021. See the Results of January 1, 2016Operations for Pepco, DPL, and ACE for additional information.
20222021Favorable (Unfavorable) Variance
PHI$608 $561 $47 
Pepco305 296 
DPL169 128 41 
ACE148 146 
Other(a)
(14)(9)(5)
__________
(a)Primarily includes eliminating and consolidating adjustments, PHI's corporate operations, shared service entities, and other financing and investing activities.
Year Ended December 31, 2022 Compared to March 23, 2016 was $19 million. There were no significantYear Ended December 31, 2021. Net income increased by $47 million primarily due to favorable impacts as a result of Pepco's Maryland and District of Columbia multi-year plans, higher distribution rates at DPL and ACE, and the absence of the recognition of a valuation allowance against a deferred tax asset due to a change in Delaware tax law in 2021 at DPL, partially offset by an increase in depreciation expense, interest expense, credit loss expense and storm costs at Pepco and DPL.
66

Results of Operations—Pepco
20222021Favorable (Unfavorable) Variance
Operating revenues$2,531 $2,274 $257 
Operating expenses
    Purchased power834 624 (210)
Operating and maintenance507 471 (36)
Depreciation and amortization417 403 (14)
Taxes other than income taxes382 373 (9)
Total operating expenses2,140 1,871 (269)
Operating income391 403 (12)
Other income and (deductions)
Interest expense, net(150)(140)(10)
Other, net55 48 
Total other income and (deductions)(95)(92)(3)
Income before income taxes296 311 (15)
Income taxes(9)15 24 
Net income$305 $296 $
Year Ended December 31, 2022 Compared to Year Ended December 31, 2021.Net income increased by $9 million primarily due to favorable impacts of the Maryland and District of Columbia multi-year plans, partially offset by an increase in credit loss expense, depreciation expense, interest expense and storm costs.
The changes in Operating revenues consisted of the following:
2022 vs. 2021
Increase (Decrease)
Distribution$44 
Transmission
Other(3)
42 
Regulatory required programs215 
Total increase$257 
Revenue Decoupling. The demand for electricity is affected by weather and customer usage. However, Operating revenues from electric distribution in both Maryland and the District of Columbia are not impacted by abnormal weather or usage per customer as a result of a BSA that provides for a fixed distribution charge per customer by customer class. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the underlying trends affecting PHI's resultsnumber of operations duringcustomers. See Note 3 — Regulatory Matters of the Predecessor periodCombined Notes to Consolidated Financial Statements for additional information on revenue decoupling for Pepco Maryland and District of January 1, 2016 to March 23, 2016 exceptColumbia.
As of December 31,
Number of Electric Customers20222021
Residential856,037 841,831 
Small commercial & industrial54,339 54,216 
Large commercial & industrial22,841 22,568 
Public authorities & electric railroads197 181 
Total933,414 918,796 
67

Distribution Revenue increased for the pre-tax recordingyear ended December 31, 2022 compared to the same period in 2021, primarily due to favorable impacts of $29 millionthe Maryland and District of non-recurring merger-relatedColumbia multi-year plans.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs withinand capital investments being recovered. Transmission revenue remained relatively consistent for the year ended December 31, 2022 compared to the same period in 2021.
Other Revenue includes rental revenue, revenue related to late payment charges, mutual assistance revenues, and recoveries of other taxes.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs, DC PLUG, and SOS procurement and administrative costs. The riders are designed to provide full and current cost recovery as well as a return in certain instances. The costs of these programs are included in Purchased power expense, Operating and maintenance expense, Depreciation and $18amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries, as Pepco remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, Pepco acts as the billing agent and therefore, Pepco does not record Operating revenues or Purchased power expense related to the electricity. For customers that choose to purchase electric generation from Pepco, Pepco is permitted to recover the electricity and REC procurement costs from customers and therefore records the amounts related to the electricity and RECs in Operating revenues and Purchased power expense. Pepco recovers electricity and REC procurement costs from customers with a slight mark-up.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of Pepco's revenue disaggregation.
The increase of $210 million for the year ended December 31, 2022 compared to the same period in 2021, in Purchased power expense is fully offset in Operating revenues as part of preferred stock derivativeregulatory required programs.

68

The changes in Operating and maintenance expense within Other, net. consisted of the following:
PHI's effective
2022 vs. 2021
Increase (Decrease)
Credit loss expense$17 
BSC and PHISCO costs13 
Storm-related costs
Labor, other benefits, contracting, and materials(2)
Other(6)
30 
Regulatory required programs
Total increase$36 
The changes in Depreciation and amortizationexpense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Depreciation and amortization(a)
$14 
Regulatory asset amortization(3)
Regulatory required programs
Total increase$14 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.
Taxes other than income taxes increased $9 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to an increase in property taxes and gross receipts taxes.
Interest expense, net increased $10 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to the issuance of debt in 2021 and 2022 and increases in interest rates.
Other, net increased $7 million for the year ended December 31, 2022 compared to the same period in 2021, primarily due to higher AFUDC equity.
Effective income tax raterates were (3.0)% and 4.8% for the periodyears ended December 31, 2022 and 2021, respectively. The change is primarily due to the acceleration of January 1, 2016 to March 23, 2016 was 47.2%.certain income tax benefits as a result of the Maryland and District of Columbia multi-year plans. See Note 143 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information on the three-year electric distribution multi-year plans and Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.
Predecessor Period
69

Results of Operations—DPL
20222021Favorable (Unfavorable) Variance
Operating revenues$1,595 $1,380 $215 
Operating expenses
Purchased power and fuel706 539 (167)
Operating and maintenance349 345 (4)
Depreciation and amortization232 210 (22)
Taxes other than income taxes72 67 (5)
Total operating expenses1,359 1,161 (198)
Operating income236 219 17 
Other income and (deductions)
Interest expense, net(66)(61)(5)
Other, net13 12 
Total other income and (deductions)(53)(49)(4)
Income before income taxes183 170 13 
Income taxes14 42 28 
Net income$169 $128 $41 
Year Ended December 31, 2015
PHI's Net income was $327 million for the year ended December 31, 2015. There were no significant changes in the underlying trends affecting PHI's results of operations during the Predecessor year except for the impact of increases in electric distribution rates within Revenue net of purchased power expense (Pepco electric distribution rates effective April 2014 in the District of Columbia, Pepco electric distribution rates effective July 2014 in Maryland, and ACE electric distribution rates effective September 2014), partially offset by Operating and maintenance costs incurred due to the implementation of a new customer information system for Pepco, DPL, and ACE in 2015. Gain (loss) on sales of assets were $46 million, primarily due to 2015 gains recorded at Pepco associated with the sale of unimproved land, held as non-utility property.
PHI's effective income tax rate for the year ended December 31, 2015 was 33.9%. See Note 14 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the effective income tax rates.

Results of OperationsPepco
 2017 2016 Favorable (unfavorable) 2017 vs. 2016 variance 2015 Favorable (unfavorable) 2016 vs. 2015 variance
Operating revenues$2,158
 $2,186
 $(28) $2,129
 $57
Purchased power expense614
 706
 92
 719
 13
Revenues net of purchased power expense(a)
1,544
 1,480
 64
 1,410
 70
Other operating expenses         
Operating and maintenance454
 642
 188
 439
 (203)
Depreciation and amortization321
 295
 (26) 256
 (39)
Taxes other than income371
 377
 6
 376
 (1)
Total other operating expenses1,146
 1,314
 168
 1,071
 (243)
Gain on sales of assets1
 8
 (7) 46
 (38)
Operating income399
 174
 225
 385
 (211)
Other income and (deductions)         
Interest expense, net(121) (127) 6
 (124) (3)
Other, net32
 36
 (4) 28
 8
Total other income and (deductions)(89) (91) 2
 (96) 5
Income before income taxes310
 83
 227
 289
 (206)
Income taxes105
 41
 (64) 102
 61
Net income$205
 $42
 $163
 $187
 $(145)
__________
(a)Pepco evaluates its operating performance using the measure of revenue net of purchased power expense for electric sales. Pepco believes revenue net of purchased power expense is a useful measurement because it provides information that can be used to evaluate its operational performance. Pepco has included the analysis below as a complement to the financial information provided in accordance with GAAP. However, Revenue net of purchased power expense is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.
Net Income
Year Ended December 31, 20172022 Compared to Year Ended December 31, 2016.Pepco's 2021.Net income for the year ended December 31, 2017, was higher than the same period in 2016,increased by $41 million primarily due to higher distribution rates and the absence of the recognition of a decrease in Operating and maintenance expensevaluation allowance against a deferred tax asset due to merger-related costs recognizeda change in March 2016 and an increaseDelaware tax law in Revenue net of purchased power expense as a result of the distribution rate increases approved by the MDPSC effective November 2016 and October 2017 and an electric distribution rate increase approved by the DCPSC effective August 2017,2021, partially offset by higher depreciation expense due to increased depreciation rates in Maryland effective November 2016. Income taxes expense incurred included unrecognized tax benefits of $21 million for uncertain tax positions related to the deductibility of certain merger commitments in the first quarter of 2017. This decrease was offset by an increase in income taxes due to the $14 million December 2017 impairment of certain transmission-related income tax regulatory assetsdepreciation expense, interest expense, storm costs, and the one-time non-cash impacts of $8 million associated with the Tax Cuts and Jobs Actcredit loss expense.
The changes in 2017.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. Pepco's Net income for the year ended December 31, 2016, was lower than the same period in 2015, primarily due to an increase in Operating and maintenance expense due to merger-related costs.

Operating Revenue Net of Purchased Power Expense
Operating revenues include revenue from the distribution and supply of electricity to Pepco’s customers within its service territories at regulated rates. Operating revenues also include transmission service revenue that Pepco receives as a transmission owner from PJM at rates regulated by FERC. Transmission rates are updated annually based on a FERC-approved formula methodology.
Electric revenues and purchased power expense are also affected by fluctuations in participation in the Customer Choice Program. All Pepco customers have the choice to purchase electricity from competitive electric generation suppliers. The customers' choice of supplier does not impact the volume of deliveries, but affects revenue collected from customers related to supplied energy service.
Retail deliveries purchased from competitive electric generation suppliers (as a percentage of kWh sales) for the years ended December 31, 2017, 2016 and 2015 respectively, consisted of the following:
2022 vs. 2021
Increase (Decrease)
ElectricGasTotal
Weather$— $$
Volume
Distribution23 32 
Transmission— 
Other(2)— (2)
29 14 43 
Regulatory required programs116 56 172 
Total increase$145 $70 $215 
 For the Years Ended December 31,
 2017 2016 2015
Electric66% 65% 65%
Retail customers purchasing electric generation from competitive electric generation suppliers at December 31, 2017, 2016Revenue Decoupling. The demand for electricity is affected by weather and 2015 consisted of the following:
 December 31, 2017 December 31, 2016 December 31, 2015
 Number of customers % of total retail customers Number of customers % of total retail customers Number of customers % of total retail customers
Electric179,184
 21% 176,372
 21% 173,222
 21%
Retail deliveries purchased from competitive electric generation suppliers represented 73% of Pepco’s retail kWh sales to the District of Columbia customers and 60% of Pepco’s retail kWh sales to Maryland customers for the year ended December 31, 2017; 73% of Pepco’s retail kWh sales to the District of Columbia customers and 59% of Pepco’s retail kWh sales to Maryland customers for the year ended December 31, 2016; and 71% of Pepco’s retail kWh sales to the District of Columbia customers and 60% of Pepco’s retail kWh sales to Maryland customers for year ended December 31, 2015.
customer usage. However, Operating revenues include transmission enhancement credits that Pepco receivesfrom electric distribution in Maryland are not impacted by abnormal weather or usage per customer as a transmission owner from PJM in considerationresult of a BSA that provides for approved regional transmission expansion plan expenditures.
a fixed distribution charge per customer by customer class. While Operating revenues also include work and services performed on behalf of customers, including other utilities, which is generally not subject to price regulation. Work and services includes mutual assistance to other utilities, highway relocation, rentals of pole attachments, late payment fees and collection fees.
Purchased power expense consists of the cost of electricity purchased by Pepco to fulfill its default electricity supply obligation and, as such, is recoverable from customers in accordance with the terms of public service commission orders.

The changes in Pepco’s Operating revenues net of purchased power expense for the years ended December 31, 2017 and 2016 compared to the same periods in 2016 and 2015, respectively, consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Volume$16
 $15
Distribution rate increase66
 5
Regulatory required programs(12) 38
Transmission revenues9
 (1)
Other(15) 13
Total increase$64
 $70
Volume.The increase in operating revenues net of purchased power and fuel expense related to delivery volume, exclusive of the effects of weather, for the year ended December 31, 2017 compared to the same period in 2016 primarily reflects the impact of residential customer growth. The increase in operating revenues net of purchased power and fuel expense related to delivery volume, exclusive of the effects of weather, for the year ended December 31, 2016 compared to the same period in 2015 primarily reflects the impact of moderate economic and customer growth.
Distribution Rate Increase.The increase in electric operating revenues net of purchased power expense for the year ended December 31, 2017 compared to the same period in 2016 was primarily due to the impact of the higher electric distribution rates charged to customers in Maryland that became effective in November 2016 and October 2017 and higher electric distribution rates charged to customersare not impacted by abnormal weather or usage per customer, they are impacted by changes in the Districtnumber of Columbia that became effective August 2017. The increase in distribution revenue for the year ended December 31, 2016 compared to the same period in 2015 was primarily due to the impact of the new electric distribution rates charged to customers in Maryland that became effective in November 2016.customers. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Revenue Decoupling.Pepco’s results historically have been seasonal, generally producing higher revenue and income in the warmest and coldest periods of the year. For retail customers of Pepco in Maryland and in the District of Columbia, revenues are not affected by unseasonably warmer or colder weather because a bill stabilization adjustment (BSA) for retail customers was implemented that provides for a fixed distribution charge per customer. The BSA has the effect of decoupling the distribution revenue recognized in a reporting period from the amount of power delivered during the period. As a result, the only factors that will cause distribution revenue from customers in Maryland and the District of Columbia to fluctuate from period to period are changes in the number of customers and changes in the approved distribution charge per customer. Changes in customer usage (due to weather conditions, energy prices, energy efficiency programs or other reasons) from period to period have no impact on reported distribution revenue for customers to whom the BSA applies.

Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 20-year period in Pepco's service territory. The changes in heating and cooling degree days in Pepco’s service territory for the years ended December 31, 2017 and December 31, 2016 compared to same periods in 2016 and 2015, respectively, and normal weather consisted of the following:
 For the Years Ended December 31,   % Change
Heating and Cooling Degree-Days2017 2016 Normal 2017 vs. 2016 2017 vs. Normal
Heating Degree-Days3,312

3,624
 3,869
 (8.6)% (14.4)%
Cooling Degree-Days1,767

1,936
 1,653
 (8.7)% 6.9 %
          
 For the Years Ended December 31,   % Change
Heating and Cooling Degree-Days2016 2015 Normal 2016 vs. 2015 2016 vs. Normal
Heating Degree-Days3,624
 3,657
 3,887
 (0.9)% (6.8)%
Cooling Degree-Days1,936
 1,936
 1,626
  % 19.1 %
Regulatory Required Programs. This represents the change in Operating revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs. The riders are designed to provide full and current cost recovery as well as a return. The costs of these programs are included in Operating and maintenance expense, Depreciation and amortization expense and Taxes other than income in Pepco's Consolidated Statements of Operations and Comprehensive Income. Revenue from regulatory required programs decreased for the year ended December 31, 2017 compared to the same period in 2016 primarily due to lower demand-side management program surcharge revenue due to a decrease in kWh sales and a rate decrease effective January 2017. Revenue from regulatory required programs increased for the year ended December 31, 2016 compared to the same period in 2015 primarily due to higher demand-side management program surcharge revenue due to a rate increase effective February 2016. Refer to the Operating and maintenance expense and Depreciation and amortization expense discussion below for additional information on included programs.
Transmission Revenues.Under a FERC approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs, capital investments being recovered and other billing adjustments. Transmission revenue increased for the year ended December 31, 2017 compared to the same period in 2016 due to higher rates effective June 1, 2017 and June 1, 2016 related to increases in transmission plant investment and operating expenses. Transmission revenue decreased for the year ended December 31, 2016 compared to the same period in 2015 due to lower revenue related to the MAPP abandonment recovery period that ended in March 2016, partially offset by higher rates effective June 1, 2016 and June 1, 2015 related to increases in transmission plant investment and operating expenses.
Other.The decrease in other operating revenue net of purchased power expense for the year ended December 31, 2017 compared to the same period in 2016 is primarily due to lower pass-through revenue (which is substantially offset in Taxes other than income) primarily the result of lower sales that resulted in a decrease in utility taxes that are collected by Pepco on behalf of the jurisdiction. The increase in other operating revenue net of purchased power expense for the year ended December 31, 2016 compared to the same period in 2015 is primarily due to higher pass-through revenue (which is substantially offset in Taxes other than income) primarily the result of higher sales that resulted in an increase in utility taxes that are collected by Pepco on behalf of the jurisdiction.

Operating and Maintenance Expense
 Year Ended December 31, Increase (Decrease) Year Ended December 31, 
Increase
(Decrease)
 2017 2016 2017 vs. 2016 2016 2015 2016 vs. 2015
Operating and maintenance expense - baseline$449
 $631
 $(182) $631
 $427
 $204
Operating and maintenance expense - regulatory required programs(a)
5
 11
 (6) 11
 12
 (1)
Total operating and maintenance expense$454
 $642
 $(188) $642
 $439
 $203
__________
(a)Operating and maintenance expenses for regulatory required programs are costs for various legislative and/or regulatory programs that are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues.
The changes in Operating and maintenance expense for 2017 compared to 2016 and 2016 compared to 2015 consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Baseline   
Labor, other benefits, contracting and materials$16
 $7
Storm-related costs(1) 6
Remeasurement of AMI-related regulatory asset(a)
(7) 7
 Deferral of billing system transition costs to regulatory asset
 (7)
Deferral of merger-related costs to regulatory asset
 (11)
 Uncollectible accounts expense - provision(11) 8
BSC and PHISCO allocations(b)
(24) 53
Merger commitments(c)
(132) 126
Write-off of construction work in progress(d)
(14) 13
Other(9) 2
 (182)
204
Regulatory required programs   
Purchased power administrative costs(6) (1)
Total (decrease) increase$(188) $203
__________
(a)Related to a remeasurement of a regulatory asset for legacy meters recognized in 2016.
(b)Primarily related to merger severance and compensation costs recognized in 2016
(c)Primarily related to merger-related commitments for customer rate credits and charitable contributions recognized in 2016.
(d)Primarily resulting from a review of capital projects during the fourth quarter of 2016.

Depreciation and Amortization Expense
The changes in Depreciation and amortization expense for 2017 compared to 2016 and 2016 compared to 2015 consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Depreciation expense(a)
$28
 $11
Regulatory asset amortization(b)
8
 (11)
Regulatory required programs (c)
(10) 39
Total increase$26
 $39
_________
(a)Depreciation expense increased primarily due to higher depreciation rates in Maryland effective November 2016 and ongoing capital expenditures.
(b)Regulatory asset amortization increased for the year ended December 31, 2017 compared to the same period in 2016 primarily due to higher amortization of AMI-related regulatory assets, partially offset by lower amortization of MAPP abandonment costs. Regulatory asset amortization decreased for the year ended December 31, 2016 compared to the same period in 2015 primarily due to lower amortization of MAPP abandonment costs.
(c)Regulatory required programs decreased for the year ended December 31, 2017 compared to the same period in 2016 primarily due to an EmPower Maryland surcharge rate decrease effective February 2016 and increased for the year ended December 31, 2016 compared to the same period in 2015 due to an EmPower Maryland surcharge rate increase effective February 2015. Depreciation and amortization expenses for regulatory required programs are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues and Operating and maintenance expense.
Taxes Other Than Income
Taxes other than income for the year ended December 31, 2017 compared to the same period in 2016 decreased primarily due to lower utility taxes that are collected and passed through by Pepco (which is substantially offset in Operating revenues), partially offset by higher property taxes. Taxes other than income for the year ended December 31, 2016 compared to the same period in 2015 increased primarily due to higher utility taxes that are collected and passed through by Pepco, partially offset by lower property taxes in Maryland.
Gain on Sales of Assets
Gain on sales of assets for the year ended December 31, 2017 compared to the same period in 2016 decreased primarily due to higher gains recorded in 2016 at Pepco associated with the sale of land. Gain on sale of assets for the year ended December 31, 2016 compared to the same period in 2015 decreased primarily due to higher gains recorded in 2015 at Pepco associated with the sale of land held as non-utility property.
Interest Expense, Net
Interest expense, net for the year ended December 31, 2017 compared to the same period in 2016 decreased primarily due to the recording of interest expense for an uncertain tax position in 2016, partially offset by higher interest expense associated with the issuance of long term debt in May 2017. Interest expense, net for the year ended December 31, 2016 compared to the same period in 2015 increased primarily due to the recording of interest expense for an uncertain tax position in 2016, partially offset by an increase in capitalized AFUDC debt.
Other, Net
Other, net for the year ended December 31, 2017 compared to the same period in 2016 decreased primarily due to the September 2016 reversal of contributions in aid of construction tax gross-

up reserves due to the determination that there is no legal obligation to refund customers per contract term. Other, net for the year ended December 31, 2016 compared to the same period in 2015 increased primarily due to higher income from AFUDC equity.
Effective Income Tax Rate
Pepco's effective income tax rates for the years ended December 31, 2017, 2016, and 2015 were 33.9%, 49.4%, and 35.3%, respectively. See Note 14 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the change in effective income tax rates. In the first quarter of 2017, Pepco decreased its liability for unrecognized tax benefits by $21 million resulting in a benefit to Income taxes and corresponding decrease to its effective tax rate. This decrease was offset by an increase in income taxes due to the $14 million December 2017 impairment of certain transmission-related income tax regulatory assets and the one-time non-cash impacts of $8 million associated with the Tax Cuts and Jobs Act in 2017.
As a result of the merger, Pepco recorded an after-tax charge of $31 million during the year ended December 31, 2016 as a result of the assessment and remeasurement of certain federal and state uncertain tax positions.
Pepco Electric Operating Statistics and Revenue Detail
Retail Deliveries to Customers (in GWhs)2017 2016 % Change 2017 vs. 2016 Weather - Normal % Change 2015 % Change 2016 vs. 2015 Weather - Normal % Change
Retail Deliveries(a)
             
Residential7,831
 8,372
 (6.5)% (2.5)% 8,452
 (0.9)% (0.3)%
Small commercial & industrial1,303
 1,459
 (10.7)% (9.0)% 1,471
 (0.8)% (0.6)%
Large commercial & industrial14,988
 15,559
 (3.7)% (2.5)% 15,351
 1.4 % 1.6 %
Public authorities & electric railroads734
 724
 1.4 % 1.4 % 714
 1.4 % 1.7 %
Total retail deliveries24,856
 26,114
 (4.8)% (2.8)% 25,988
 0.5 % 0.9 %
 As of December 31,
Number of Electric Customers2017 2016 2015
Residential792,211
 780,652
 767,392
Small commercial & industrial

53,489
 53,529
 53,838
Large commercial & industrial21,732
 21,391
 20,976
Public authorities & electric railroads144
 130
 129
Total867,576
 855,702
 842,335

Electric Revenue2017 2016 % Change 2017 vs. 2016 2015 % Change 2016 vs. 2015
Retail Sales(a)
         
Residential$956
 $1,000
 (4.4)% $970
 3.1 %
Small commercial & industrial147
 150
 (2.0)% 153
 (2.0)%
Large commercial & industrial810
 803
 0.9 % 777
 3.3 %
Public authorities & electric railroads33
 32
 3.1 % 30
 6.7 %
Total retail1,946
 1,985
 (2.0)% 1,930
 2.8 %
Other revenue(b)
212
 201
 5.5 % 199
 1.0 %
Total electric revenue(c)
$2,158
 $2,186
 (1.3)% $2,129
 2.7 %
__________
(a)Reflects delivery volumes and revenues from customers purchasing electricity directly from Pepco and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges. For customers purchasing electricity from Pepco, revenue also reflects the cost of energy and transmission.
(b)Other revenue includes transmission revenue from PJM and wholesale electric revenues.
(c)
Includes operating revenues from affiliates totaling $6 million for the year ended December 31, 2017 and $5 million for the years ended December 31, 2016 and 2015, respectively.

Results of OperationsDPL
 2017 2016 Favorable (unfavorable) 2017 vs. 2016 variance 2015 Favorable (unfavorable) 2016 vs. 2015 variance
Operating revenues$1,300
 $1,277
 $23
 $1,302
 $(25)
Purchased power and fuel expense532
 583
 51
 634
 51
Revenues net of purchased power and fuel expense(a)
768
 694
 74
 668
 26
Other operating expenses        

Operating and maintenance315
 441
 126
 304
 (137)
Depreciation and amortization167
 157
 (10) 148
 (9)
Taxes other than income57
 55
 (2) 51
 (4)
Total other operating expenses539
 653
 114
 503
 (150)
Gain on sales of assets
 9
 (9) 
 9
Operating income229
 50
 179
 165
 (115)
Other income and (deductions)        

Interest expense, net(51) (50) (1) (50) 
Other, net14
 13
 1
 10
 3
Total other income and (deductions)(37) (37) 
 (40) 3
Income before income taxes192
 13
 179
 125
 (112)
Income taxes71
 22
 (49) 49
 27
Net income (loss)$121
 $(9) $130
 $76
 $(85)
__________
(a)DPL evaluates its operating performance using the measure of revenue net of purchased power expense for electric sales and revenue net of fuel expense for gas sales. DPL believes revenue net of purchased power expense and revenue net of fuel expense are useful measurements because they provide information that can be used to evaluate its operational performance. DPL has included the analysis below as a complement to the financial information provided in accordance with GAAP. However, Revenue net of purchased power expense and Revenue net of fuel expense is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.

Net Income (Loss)
Year Ended December 31, 2017Compared to Year Ended December 31, 2016. The increase in Net income was driven primarily by a decrease in Operating and maintenance expense primarily due to merger-related costs recognized in March 2016 and an increase in Revenues net of purchased power and fuel expense as a result of the distribution rate increases approved by the DPSC effective July and December 2016 and a distribution rate increase approved by the MDPSC effective February 2017, partially offset by higher depreciation expense due to increased depreciation rates in Maryland effective February 2017. Income taxes expense incurred included unrecognized tax benefits of $16 million for uncertain tax positions related to the deductibility of certain merger commitments in the first quarter of 2017. This decrease was offset by an increase in income taxes due to the $6 million December 2017 impairment of certain transmission-related income tax regulatory assets and the one-time non-cash impacts of $5 million associated with the Tax Cuts and Jobs Act in 2017.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The decrease in Net income was driven primarily by an increase in Operating and maintenance expense primarily due to merger-related costs.
Operating Revenue Net of Purchased Power and Fuel Expense
Operating revenues include revenue from the distribution and supply of electricity and natural gas to DPL’s customers within its service territories at regulated rates. Operating revenues also include transmission service revenue that DPL receives as a transmission owner from PJM at rates regulated by FERC. Transmission rates are updated annually based on a FERC-approved formula methodology.
Electric and natural gas revenues and purchased power and fuel expense are also affected by fluctuations in participation in the Customer Choice Program. All DPL customers have the choice to purchase electricity and gas from competitive electric generation and natural gas suppliers, respectively. The customers' choice of suppliers does not impact the volume of deliveries, but affects revenue collected from customers related to supplied energy and natural gas service.
Retail deliveries purchased from competitive electric generation and natural gas suppliers (as a percentage of kWh and mmcf sales, respectively) for the years ended December 31, 2017, 2016 and 2015, consisted of the following:
 For the Years Ended December 31,
 2017 2016 2015
Electric52% 51% 51%
Natural Gas33% 28% 31%
Retail customers purchasing electric generation and natural gas from competitive electric generation and natural gas suppliers at December 31, 2017, 2016 and 2015 consisted of the following:
 December 31, 2017 December 31, 2016 December 31, 2015
 Number of customers % of total retail customers Number of customers % of total retail customers Number of customers % of total retail customers
Electric77,790
 14.9% 78,675
 15.2% 77,603
 15.1%
Natural Gas154
 0.1% 156
 0.1% 159
 0.1%
Retail deliveries purchased from competitive electric generation suppliers represented 54% of DPL’s retail kWh sales to Delaware customers and 48% of DPL retail kWh sales to Maryland customers for

the year ended December 31, 2017; 53% of DPL’s retail kWh sales to Delaware customers and 48% of DPL’s retail kWh sales to Maryland customers for the year ended December 31, 2016; and 53% of DPL’s retail kWh sales to Delaware customers and 47% of DPL’s retail kWh sales to Maryland customers for the year ended December 31, 2015.
Operating revenues include transmission enhancement credits that DPL receives as a transmission owner from PJM in consideration for approved regional transmission expansion plan expenditures.
Operating revenues also include work and services performed on behalf of customers, including other utilities, which is generally not subject to price regulation. Work and services includes mutual assistance to other utilities, highway relocation, rentals of pole attachments, late payment fees and collection fees.
Natural gas operating revenues includes sources that are subject to price regulation (Regulated Gas Revenue) and those that generally are not subject to price regulation (Other Gas Revenue). Regulated gas revenue includes the revenue DPL receives from on-system natural gas delivered sales and the transportation of natural gas for customers within its service territory at regulated rates. Other gas revenue consists of off-system natural gas sales and the short-term release of interstate pipeline transportation and storage capacity not needed to serve customers. Off-system sales are made possible when low demand for natural gas by regulated customers creates excess pipeline capacity.
Purchased power expense consists of the cost of electricity purchased by DPL to fulfill its default electricity supply obligation and, as such, is recoverable from customers in accordance with the terms of public service commission orders. Purchased fuel expense consists of the cost of gas purchased by DPL to fulfill its obligation to regulated gas customers and, as such, is recoverable from customers in accordance with the terms of public service commission orders. It also includes the cost of gas purchased for off-system sales.
The changes in DPL’s Operating revenues net of purchased power and fuel expense for the years ended December 31, 2017 and 2016 compared to the same periods in 2016 and 2015, respectively, consisted of the following:
 2017 vs. 2016 2016 vs. 2015
 Increase (Decrease) Increase (Decrease)
 Electric Gas Total Electric Gas Total
Weather$(7) $(13) $(20) $
 $
 $
Volume2
 11
 13
 2
 2
 4
Distribution rate increase65
 4
 69
 2
 1
 3
Regulatory required programs(3) 
 (3) 10
 
 10
Transmission revenues10
 
 10
 8
 
 8
Other6
 (1) 5
 1
 
 1
Increase in revenue net of purchased power expense$73

$1

$74

$23

$3

$26
Revenue Decoupling. DPL’s results historically have been seasonal, generally producing higher revenue and income in the warmest and coldest periods of the year. For retail customers of DPL in Maryland, revenues are not affected by unseasonably warmer or colder weather because a bill stabilization adjustment (BSA) for retail customers was implemented that provides for a fixed distribution charge per customer. The BSA has the effect of decoupling the distribution revenue recognized in a reporting period from the amount of power delivered during the period. As a result, the only factors that will cause distribution revenue from customers in Maryland to fluctuate from period to period are changes

in the number of customers and changes in the approved distribution charge per customer. A modified fixed variable rate design, which would provide for a charge not tied to a customer’s volumetric consumption of electricity or natural gas, has been proposed for DPL electricity and natural gas customers in Delaware. Changes in customer usage (due to weather conditions, energy prices, energy efficiency programs or other reasons) from period to period have no impact on reported distribution revenue for customers to whom the BSA applies.Maryland.
Weather.The demand for electricity and natural gas in areas not subject to the BSADelaware is affected by weather conditions. With respect to the electric business, very warm weather in summer months and, with respect to the electric and natural gas businesses, very cold weather in winter months are referred to as "favorable weather conditions” because these weather conditions result in increased deliveries of electricity and natural gas. Conversely, mild weather reduces demand. During the year ended December 31, 20172022 compared to the same period in 2016, operating2021, Operating revenues net of purchased power and fuel expenses was lowerrelated to weather increased due to the impact of unfavorablefavorable weather conditions in DPL's Delaware natural gas service territory. During the year ended December 31, 2016 compared to the same period in 2015, weather was not a significant impact.
70

Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 20-year period in DPL's Delaware electric service territory and a 30-year period in DPL's Delaware natural gas service territory. The changes in heating and cooling degree days in DPL’s Delaware service territory for the yearsyear ended December 31, 2017 and December 31, 20162022 compared to same periodsperiod in 2016 and 2015, respectively,2021 and normal weather consisted of the following:
For the Years Ended December 31,% Change
Delaware Electric Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days4,428 4,239 4,593 4.5 %(3.6)%
Cooling Degree-Days1,382 1,380 1,272 0.1 %8.6 %
Electric Service TerritoryFor the Years Ended December 31,   % Change
Heating and Cooling Degree-Days2017 2016 Normal 2017 vs. 2016 2017 vs. Normal
Heating Degree-Days4,077
 4,319
 4,519
 (5.6)% (9.8)%
Cooling Degree-Days1,300
 1,453
 1,210
 (10.5)% 7.4 %
          
 For the Years Ended December 31,   % Change
Heating and Cooling Degree-Days2016 2015 Normal 2016 vs. 2015 2016 vs. Normal
Heating Degree-Days4,319
 4,421
 4,572
 (2.3)% (5.5)%
Cooling Degree-Days1,453
 1,328
 1,188
 9.4 % 22.3 %
For the Years Ended December 31,% Change
Delaware Natural Gas Service Territory20222021Normal2022 vs. 20212022 vs. Normal
Heating Degree-Days4,428 4,239 4,676 4.5 %(5.3)%
Natural Gas Service TerritoryFor the Years Ended December 31,   % Change
Heating and Cooling Degree-Days2017 2016 Normal 2017 vs. 2016 2017 vs. Normal
Heating Degree-Days4,203
 4,454
 4,739
 (5.6)% (11.3)%
          
 For the Years Ended December 31,   % Change
Heating and Cooling Degree-Days2016 2015 Normal 2016 vs. 2015 2016 vs. Normal
Heating Degree-Days4,454
 4,618
 4,754
 (3.6)% (6.3)%
Volume,. The increase in operating revenues net of purchased power and fuel expense related to delivery volume, exclusive of the effects of weather, increased for the year ended December 31, 20172022 compared to the same period in 2016,2021 primarily reflectsdue to customer growth and usage.
Electric Retail Deliveries to Delaware Customers (in GWhs)20222021% Change
Weather - Normal % Change (b)
Residential3,242 3,214 0.9 %(0.1)%
Small commercial & industrial1,443 1,452 (0.6)%(1.0)%
Large commercial & industrial3,162 3,149 0.4 %0.4 %
Public authorities & electric railroads33 34 (2.9)%(4.4)%
Total electric retail deliveries(a)
7,880 7,849 0.4 %(0.1)%
As of December 31,
Number of Total Electric Customers (Maryland and Delaware)20222021
Residential481,688 476,260 
Small commercial & industrial63,738 63,195 
Large commercial & industrial1,235 1,218 
Public authorities & electric railroads597 604 
Total547,258 541,277 
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from DPL and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the impactchange in delivery volumes assuming normalized weather based on the historical 20-year average.
Natural Gas Retail Deliveries to Delaware Customers (in mmcf)20222021% Change
Weather - Normal % Change(b)
Residential8,709 7,914 10.0 %4.2 %
Small commercial & industrial4,176 3,747 11.4 %7.0 %
Large commercial & industrial1,697 1,679 1.1 %1.1 %
Transportation6,696 6,778 (1.2)%(2.3)%
Total natural gas deliveries(a)
21,278 20,118 5.8 %2.4 %

71

As of December 31,
Number of Delaware Natural Gas Customers20222021
Residential129,502 128,121 
Small commercial & industrial10,144 10,027 
Large commercial & industrial17 20 
Transportation156 158 
Total139,819 138,326 
__________
(a)Reflects delivery volumes from customers purchasing natural gas directly from DPL and customers purchasing natural gas from a competitive natural gas supplier as all customers are assessed distribution charges.
(b)Reflects the change in operating revenues net of purchased power and fuel expense related to delivery volume, exclusive ofvolumes assuming normalized weather based on the effectshistorical 30-year average.

of weather,Distribution Revenue increased for the year ended December 31, 20162022 compared to the same period in 2015,2021 primarily reflectsdue to higher electric distribution rates in Maryland that became effective in March 2022, higher DSIC rates in Delaware that became effective in January and July 2022, and higher natural gas distribution rates in Delaware that became effective in August 2022.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the impact of moderate economicunderlying costs and customer growth.
Distribution Rate Increase. The increase in electric operating revenues net of purchased power expensecapital investments being recovered. Transmission revenue increased for the year ended December 31, 20172022 compared to the same period in 2016 was2021 primarily due to the impactincreases in underlying costs.
Other Revenue includes rental revenue, revenue related to late payment charges, mutual assistance revenues, and recoveries of the higher electric distribution and natural gas rates charged to Delaware customers that became effective in July and December 2016 and the impact of higher electric distribution rates charged to Maryland customers that became effective in February 2017. The increase in electric operating revenues net of purchased power expense for the year ended December 31, 2016 compared to the same period in 2015 was primarily due to the impact of the new electric distribution rates charged to Delaware customers that became effective in July 2016. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.other taxes.
Regulatory Required Programs. This represents the change in operatingPrograms represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs.programs, DE Renewable Portfolio Standards, SOS procurement and administrative costs, and GCR costs. The riders are designed to provide full and current cost recovery as well as a return.return in certain instances. The costs of these programs are included in Purchased power and fuel expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. All customers have the choice to purchase electricity from competitive electric generation suppliers; however, only certain commercial and industrial customers have the choice to purchase natural gas from competitive natural gas suppliers. Customer choice programs do not impact the volume of deliveries as DPL remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation or natural gas from competitive suppliers, DPL either acts as the billing agent or the competitive supplier separately bills its own customers, and therefore does not record Operating revenues or Purchased power and fuel expense related to the electricity and/or natural gas. For customers that choose to purchase electric generation or natural gas from DPL, DPL is permitted to recover the electricity, natural gas, and REC procurement costs from customers and therefore records the amounts related to the electricity, natural gas, and RECs in Operating revenues and Purchased power and fuel expense. DPL recovers electricity and REC procurement costs from customers with a slight mark-up, and natural gas costs without mark-up.
See Note 5 — Segment Information of the Combined Notes to Consolidated Financial Statements for the presentation of DPL's Consolidated Statementsrevenue disaggregation.
The increase of Operations and Comprehensive Income. Revenue from regulatory required programs decreased$167 million for the year ended December 31, 20172022 compared to the same period in 20162021, in Purchased power and fuel expense is fully offset in Operating revenues as part of regulatory required programs.
72

The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Credit loss expense$
Storm-related costs
BSC and PHISCO costs
Labor, other benefits, contracting, and materials(13)
Other(3)
(1)
Regulatory required programs
Total increase$
The changes in Depreciation and amortization expense consisted of the following:
2022 vs. 2021
Increase (Decrease)
Depreciation and amortization(a)
$23 
Regulatory asset amortization(3)
Regulatory required programs
Total increase$22 
__________
(a)Depreciation and amortization increased primarily due to lower demand-side management program surcharge revenue due to a decrease in kWh sales and a rate decrease effective January 2017. Revenue from regulatory required programs ongoing capital expenditures.

Taxes other than income taxes increased by $5 million for the year ended December 31, 20162022 compared to the same period in 20152021, primarily due to higher demand-side management program surcharge revenue due to a ratean increase effective February 2016. Refer to the Operatingin property taxes and maintenancegross receipts taxes.
Interest expense, and Depreciation and amortization expense discussion below for additional information on included programs.
Transmission Revenues. Under a FERC approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs, capital investments being recovered and other billing adjustments. Transmission revenue net increased $5 million for the year ended December 31, 20172022 compared to the same period in 20162021 primarily due to higherthe issuance of debt in 2021 and 2022.
Effective income tax rates effective June 1, 2017 were 7.7%and June 1, 2016 related to increases in transmission plant investment 24.7% for the years ended December 31, 2022and operating expenses. Transmission revenue increased2021, respectively. The decrease for the year ended December 31, 2016 compared to the same period in 2015 due to higher rates effective June 1, 2016 and June 1, 2015 related to increases in transmission plant investment and operating expenses, partially offset by lower revenue2022 is primarily related to the MAPP abandonment recovery period that ended in March 2016.
Other.Other revenue, which can vary period to period, includes rental revenue, revenue related to late payment charges, assistance provided to other utilities through mutual assistance programs, and recoveries of other taxes.

Operating and Maintenance Expense
 Year Ended December 31, Increase (Decrease) Year Ended December 31, Increase (Decrease)
 2017 2016  2016 2015 
Operating and maintenance expense - baseline$306
 $425
 $(119) $425
 $289
 $136
Operating and maintenance expense - regulatory required programs(a)
9
 16
 (7) 16
 15
 1
Total operating and maintenance expense$315
 $441
 $(126) $441
 $304
 $137
__________
(a)Operating and maintenance expenses for regulatory required programs are costs for various legislative and/or regulatory programs that are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues.
The changes in Operating and maintenance expense for 2017 compared to 2016 and 2016 compared to 2015 consistedabsence of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Baseline   
Labor, other benefits, contracting and materials$4
 $1
Storm-related costs4
 5
Deferral of billing system transition costs to regulatory asset2
 (2)
  Deferral of merger-related costs to regulatory asset(6) (4)
Uncollectible accounts expense - provision(10) 3
  BSC and PHISCO allocations(a)
(15) 34
  Merger commitments(b)
(88) 86
  Write-off of construction work in progress(c)
(3) 4
Other(7) 9
 (119)
136
Regulatory required programs   
Purchased power administrative costs(7) 1
Total (decrease) increase$(126) $137
_________
(a)Primarily related to merger severance and compensation costs recognized in 2016.
(b)Primarily related to merger-related commitments for customer rate credits and charitable contributions recognized in 2016.
(c)Primarily resulting from a review of capital projects during the fourth quarter of 2016.

Depreciation and Amortization Expense
The changes in Depreciation and amortization expense for 2017 compared to 2016 and 2016 compared to 2015 consistedrecognition of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Depreciation expense(a)
$14
 $7
Regulatory asset amortization (b)

 (7)
Regulatory required programs(c)
(4) 9
Total increase$10
 $9
_________
(a)Depreciation expense increased due to higher depreciation rates in Maryland effective February 2017 and due to ongoing capital expenditures.
(b)Regulatorya valuation allowance against a deferred tax asset amortization decreased for the year ended December 31, 2016 compared to the same period in 2015 primarily due to lower amortization of MAPP abandonment costs.
(c)Regulatory required programs decreased for the year ended December 31, 2017 compared to the same period in 2016 primarily due to an EmPower Maryland surcharge rate decrease effective February 2016 and increased for the year ended December 31, 2016 compared to the same period in 2015 due to an EmPower Maryland surcharge rate increase effective February 2015. Depreciation and amortization expenses for regulatory required programs are recoverable from customers on a full and current basis through approved regulated rates. A partially offsetting amount has been reflected in Operating revenues and Operating and maintenance expense.
Taxes Other Than Income  
Taxes other than income for the year ended December 31, 2017 compared to the same period in 2016 remained relatively constant. Taxes other than income for the year ended December 31, 2016 compared to the same period in 2015 increased primarily due to higher property taxesa change in Maryland related to higher property assessments and rate increases.
Gain on Sales of Assets
Gain on sales of assets for the year ended December 31, 2017 compared to the same periodDelaware tax law in 2016 decreased primarily due to gains recorded in 2016 at DPL associated with the sale of land held as non-utility property. Gain on sales of assets for the year ended December 31, 2016 compared to the same period in 2015 increased primarily due to gains recorded in 2016 at DPL associated with the sale of land held as non-utility property.
Interest Expense, Net
Interest expense, net for the year ended December 31, 2017 compared to the same period in 2016 and for the year ended December 31, 2016 compared to the same period in 2015 remained relatively constant.
Other, Net
Other, net for the year ended December 31, 2017 compared to the same period in 2016 remained relatively constant. Other, net for the year ended December 31, 2016 compared to the same period in 2015 increased primarily due to higher income from AFUDC equity.
Effective Income Tax Rate
DPL's effective income tax rates for the years ended December 31, 2017, 2016 and 2015 were 37.0%, 169.2% and 39.2%, respectively.2021. See Note 1413 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the change in effective income tax rates. In the first quarter
73


tax benefits by $16 million resulting in a benefit to Income taxes and corresponding decrease to its effective tax rate. This decrease was offset by an increase in income taxes due to the $6 million December 2017 impairment of certain transmission-related income tax regulatory assets and the one-time non-cash impacts of $5 million associated with the Tax Cuts and Jobs Act in 2017.
As a result of the merger, DPL recorded an after-tax charge of $23 million during the year ended December 31, 2016 as a result of the assessment and remeasurement of certain federal and state uncertain tax positions.
DPL Electric Operating Statistics and Revenue Detail
ACE
Retail Deliveries to Customers (in GWhs)2017 2016 % Change 2017 vs. 2016 Weather - Normal % Change 2015 % Change 2016 vs. 2015 Weather - Normal % Change
Retail Deliveries(a)
             
Residential5,010
 5,181
 (3.3)% (0.3)% 5,337
 (2.9)% (2.9)%
Small commercial & industrial2,237
 2,290
 (2.3)% (0.9)% 2,311
 (0.9)% (1.3)%
Large commercial & industrial4,585
 4,623
 (0.8)% 0.3 % 4,781
 (3.3)% (3.9)%
Public authorities & electric railroads44
 46
 (4.3)% (8.3)% 45
 2.2 % 6.7 %
Total retail deliveries11,876
 12,140
 (2.2)% (0.2)% 12,474
 (2.7)% (2.9)%
 As of December 31,
Number of Electric Customers2017 2016 2015
Residential459,389
 456,181
 453,145
Small commercial & industrial60,697
 60,173
 59,714
Large commercial & industrial

1,400
 1,411
 1,410
Public authorities & electric railroads629
 643
 643
Total522,115
 518,408
 514,912
Electric Revenue2017 2016 % Change 2017 vs. 2016 2015 % Change 2016 vs. 2015
Retail Sales(a)
         
Residential$660
 $668
 (1.2)% $681
 (1.9)%
Small commercial & industrial185
 187
 (1.1)% 192
 (2.6)%
Large commercial & industrial102
 98
 4.1 % 101
 (3.0)%
Public authorities & electric railroads14
 13
 7.7 % 12
 8.3 %
Total retail961

966
 (0.5)% 986
 (2.0)%
Other revenue(b)
178
 163
 9.2 % 152
 7.2 %
Total electric revenue(c)
$1,139
 $1,129
 0.9 % $1,138
 (0.8)%
__________
(a)Reflects delivery volumes and revenues from customers purchasing electricity directly from DPL and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges. For customers purchasing electricity from DPL, revenue also reflects the cost of energy and transmission.
(b)Other revenue includes transmission revenue from PJM and wholesale electric revenues.
(c)Includes operating revenues from affiliates totaling $8 million, $7 million and $6 million for the years ended December 31, 2017, 2016 and 2015, respectively.

DPL Gas Operating Statistics and Revenue Detail
Retail Deliveries to Customers (in mmcf)2017 2016 % Change 2017 vs. 2016 Weather Normal % change 2015 % Change 2016 vs. 2015 Weather Normal % change
Retail Deliveries             
Residential13,107
 13,341
 (1.8)% 5.2% 13,816
 (3.4)% (0.4)%
Transportation & other6,538
 6,201
 5.4 % 6.9% 6,193
 0.1 % 1.4 %
Total gas deliveries19,645
 19,542
 0.5 % 5.7% 20,009
 (2.3)% 0.1 %
 As of December 31,
Number of Gas Customers2017 2016 2015
Residential122,347
 120,951
 119,771
Commercial & industrial9,853
 9,801
 9,712
Transportation & other154
 156
 159
Total132,354
 130,908
 129,642
Gas Revenue2017 2016 % Change 2017 vs. 2016 2015 % Change 2016 vs. 2015
Retail Sales(a)
         
Retail sales$136
 $127
 7.1% $143
 (11.2)%
Transportation & other(b)
25
 21
 19.0% 21
  %
Total gas revenues$161
 $148
 8.8% $164
 (9.8)%
__________
(a)Reflects delivery volumes and revenues from customers purchasing natural gas directly from DPL and customers purchasing natural gas from a competitive natural gas supplier as all customers are assessed distribution charges. For customers purchasing natural gas from DPL, revenue also reflects the cost of natural gas.
(b)Transportation and other revenue includes off-system natural gas sales and the short-term release of interstate pipeline transportation and storage capacity not needed to serve customers.

Results of OperationsOperations—ACE
20222021Favorable
(Unfavorable) Variance
Operating revenues$1,431 $1,388 $43 
Operating expenses
Purchased power624 694 70 
Operating and maintenance331 320 (11)
Depreciation and amortization261 179 (82)
Taxes other than income taxes(1)
Total operating expenses1,225 1,201 (24)
Operating income206 187 19 
Other income and (deductions)
Interest expense, net(66)(58)(8)
Other, net11 
Total other income and (deductions)(55)(54)(1)
Income before income taxes151 133 18 
Income taxes(13)(16)
Net income$148 $146 $
 2017 2016 Favorable (unfavorable) 2017 vs. 2016 variance 2015 Favorable (unfavorable) 2016 vs. 2015 variance
Operating revenues$1,186
 $1,257
 $(71) $1,295
 $(38)
Purchased power expense570
 651
 81
 708
 57
Revenues net of purchased power expense(a)
616
 606
 10
 587
 19
Other operating expenses    
   
Operating and maintenance307
 428
 121
 271
 (157)
Depreciation and amortization146
 165
 19
 175
 10
Taxes other than income6
 7
 1
 7
 
Total other operating expenses459
 600
 141
 453
 (147)
Gain on sales of assets
 1
 (1) 
 1
Operating income157
 7
 150
 134
 (127)
Other income and (deductions)    
   
Interest expense, net(61) (62) 1
 (64) 2
Other, net7
 9
 (2) 3
 6
Total other income and
(deductions)
(54) (53) (1) (61) 8
Income (loss) before income taxes103
 (46) 149
 73
 (119)
Income taxes26
 (4) (30) 33
 37
Net income (loss)$77
 $(42) $119
 $40
 $(82)
__________
(a)ACE evaluates its operating performance using the measure of revenue net of purchased power expense for electric sales. ACE believes Revenue net of purchased power expense is a useful measurement of its performance because it provides information that can be used to evaluate its operational performance. ACE has included the analysis below as a complement to the financial information provided in accordance with GAAP. However, Revenue net of purchased power expense is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report.
Net Income (Loss)
Year Ended December 31, 20172022 Compared to Year Ended December 31, 2016. The increase in 2021. Net income wasincreased $2 million primarily due to a decreaseincreases in Operating and maintenance expense primarily due to merger-related costs recognized in March 2016 and an increase in Revenues net of purchased power expense resulting from impact of distribution rate increases approved by the NJBPU effective August 2016 and October 2017 and an increase in transmission formula rate revenues,rates, partially offset by lower customer usage. Income taxes expense incurred included unrecognized tax benefits of $22 million for uncertain tax positions related to the deductibility of certain merger commitments in the first quarter of 2017. This decrease was offset by an increase in income taxes due todepreciation expense, the December 2017 impairmentabsence of certain transmission-related income tax regulatory assetsfavorable weather and volume as a result of $7 millionthe CIP, and the one-time non-cash impacts of $2 million associated with the Tax Cuts and Jobs Act in 2017.
Year Ended December 31, 2016 Compared to Year Ended December 31, 2015. The decrease in Net income was driven primarily by an increase in Operating and maintenance expense primarily due to merger-related costs.interest expense.

Revenues Net of Purchased Power Expense
The changes in Operating revenues include revenue from the distribution and supply of electricity to ACE’s customers within its service territories at regulated rates. Operating revenues also include transmission service revenue that ACE receives as a transmission owner from PJM at rates regulated by FERC. Transmission rates are updated annually based on a FERC-approved formula methodology.
Electric revenues and purchased power expense are also affected by fluctuations in participation in the Customer Choice Program. All ACE customers have the choice to purchase electricity from competitive electric generation suppliers. The customer's choice of supplier does not impact the volume of deliveries, but affects revenue collected from customers related to supplied energy service.
Retail deliveries purchased from competitive electric generation suppliers (as a percentage of kWh sales) for the years ended December 31, 2017, 2016 and 2015, consisted of the following:
2022 vs. 2021
(Decrease) Increase
Weather$(3)
Volume(11)
Distribution48 
Transmission
Other(1)
42 
Regulatory required programs
Total increase$43 
 For the Years Ended December 31,
 2017 2016 2015
Electric48% 47% 45%
Retail customers purchasing electric generation from competitive electric generation suppliers at December 31, 2017, 2016 and 2015 consisted of the following:
 December 31, 2017 December 31, 2016 December 31, 2015
 Number of customers % of total retail customers Number of customers % of total retail customers Number of customers % of total retail customers
Electric86,155
 16% 94,562
 17% 78,299
 14%
Operating revenues include revenue from Transition Bond Charges that ACE receives, and pays to ACE Funding, to fund the principal and interest payments on Transition Bonds, revenue from the resale in the PJM wholesale markets for energy and capacity purchased under contracts with unaffiliated NUGs, and revenue from transmission enhancement credits.
Operating revenues also include work and services performed on behalf of customers, including other utilities, which is generally not subject to price regulation. Work and services includes mutual assistance to other utilities, highway relocation, rentals of pole attachments, late payment fees and collection fees.
Purchased power expense consists of the cost of electricity purchased by ACE to fulfill its default electricity supply obligation and, as such, is recoverable from customers in accordance with the terms of public service commission orders.

The changes in ACE’s Operating revenues net of purchased power expense for the years ended December 31, 2017 and 2016 compared to the same periods in 2016 and 2015, respectively, consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Weather$(3) $(3)
Volume(20) 1
Distribution rate increase40
 14
Regulatory required programs(24) (14)
Transmission revenues22
 23
Other(5) (2)
Increase in revenue net of purchased power expense$10
 $19
Weather.Revenue Decoupling. The demand for electricity is affected by weather and customer usage. However, Operating revenues from electric distribution in New Jersey are not impacted by abnormal weather or usage per customer as a result of the CIP which became effective, prospectively, in the third quarter of 2021. The CIP compares current distribution revenues by customer class to approved target revenues established in ACE’s most recent distribution base rate case. The CIP is calculated annually, and recovery is subject to certain conditions, including an earnings test and ceilings on customer rate increases. While Operating revenues are not impacted by abnormal weather or usage per customer, they are impacted by changes in the number of customers. See Note 3 — Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information on the ACE CIP.
Weather. Prior to the third quarter of 2021, the demand for electricity was affected by weather conditions. With respect to the electric business, very warm weather in summer months and very cold weather in winter months are referred to as “favorable weather conditions” because these weather conditions result in increased deliveries of electricity. Conversely, mild weather reduces demand. During the year ended December 31, 20172022 compared to the same period in 2016, operating2021, Operating revenues net of purchased power and fuel expense was lowerrelated to weather decreased due to the impactabsence of unfavorable winter weather conditionsfavorable impacts in ACE's service territory. During the year ended December 31, 2016 compared tofirst and second quarter of 2022 as a result of the same period in 2015, operating revenues netCIP.
74

For retail customers of ACE distribution revenues are not decoupled for the distribution of electricity by ACE, and thus are subject to variability due to changes in customer consumption. Therefore, changes in customer usage (due to weather conditions, energy prices, energy savings programs or other reasons) from period to period have a direct impact on reported distribution revenue for customers in ACE's service territory.
Heating and cooling degree days are quantitative indices that reflect the demand for energy needed to heat or cool a home or business. Normal weather is determined based on historical average heating and cooling degree days for a 20-year period in ACE’s service territory. The changes in heating and cooling degree days in ACE’s service territory for the yearsyear ended December 31, 2017 and December 31, 20162022 compared to same periodsperiod in 2016 and 2015, respectively,2021 and normal weather consisted of the following:
For the Years Ended December 31,Normal% Change
Heating and Cooling Degree-Days202220212022 vs. 20212022 vs. Normal
Heating Degree-Days4,629 4,256 4,589 8.8 %0.9 %
Cooling Degree-Days1,243 1,284 1,210 (3.2)%2.7 %
 For the Years Ended December 31, Normal % Change
Heating and Cooling Degree-Days2017 2016  2017 vs. 2016 2017 vs. Normal
Heating Degree-Days4,206
 4,487
 4,713
 (6.3)% (10.8)%
Cooling Degree-Days1,228
 1,303
 1,115
 (5.8)% 10.1 %
          
 For the Years Ended December 31, Normal % Change
Heating and Cooling Degree-Days2016 2015  2016 vs. 2015 2016 vs. Normal
Heating Degree-Days4,487
 4,671
 4,768
 (3.9)% (5.9)%
Cooling Degree-Days1,303
 1,259
 1,093
 3.5 % 19.2 %

Volume.The decrease in operating revenues net of purchased power and fuel expense related to delivery volume, Volume,exclusive of the effects of weather, decreased for the year ended December 31, 20172022 compared to the same period in 2016,2021, primarily reflects lower average customer usage, partially offset bydue to the impactabsence of customer growth. The increasefavorable impacts in operating revenues netthe first and second quarter of purchased power and fuel expense related to delivery volume, exclusive2022 as a result of the effects ofCIP.
Electric Retail Deliveries to Customers (in GWhs)20222021% Change
Weather - Normal % Change(b)
Residential4,131 4,220 (2.1)%(2.4)%
Small commercial & industrial1,499 1,409 6.4 %6.2 %
Large commercial & industrial3,103 3,146 (1.4)%(1.5)%
Public authorities & electric railroads47 46 2.2 %1.8 %
Total electric retail deliveries(a)
8,780 8,821 (0.5)%(0.7)%

As of December 31,
Number of Electric Customers20222021
Residential502,247 499,628 
Small commercial & industrial62,246 61,900 
Large commercial & industrial3,051 3,156 
Public authorities & electric railroads734 717 
Total568,278 565,401 
__________
(a)Reflects delivery volumes from customers purchasing electricity directly from ACE and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges.
(b)Reflects the change in delivery volumes assuming normalized weather based on the historical 20-year average.
Distribution Revenue increased for the year ended December 31, 20162022 compared to the same period in 2015, primarily reflects2021 due to higher distribution rates that became effective in January 2022.
Transmission Revenue. Under a FERC-approved formula, transmission revenue varies from year to year based upon fluctuations in the impact of moderate economicunderlying costs and customer growth, partially offset by lower average customer usage.
Distribution Rate Increase. The increase in electric operating revenues net of purchased power expensecapital investments being recovered. Transmission revenue increased for the year ended December 31, 20172022 compared to the same period in 2016 was2021 primarily due to increases in capital investment and underlying costs.
Other Revenue includes rental revenue, service connection fees, and mutual assistance revenues.
Regulatory Required Programs represent revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs, Societal Benefits Charge, Transition Bonds, and BGS procurement and administrative costs. The riders are designed to provide full and current cost recovery as well as a return in certain instances. The costs of these programs are included in Purchased power expense, Operating and maintenance expense, Depreciation and amortization expense, and Taxes other than income taxes. Customers have the choice to purchase electricity from competitive electric generation suppliers. Customer choice programs do not impact the volume of deliveries, as ACE remains the distribution service provider for all customers and charges a regulated rate for distribution service, which is recorded in Operating revenues. For customers that choose to purchase electric generation from competitive suppliers, ACE acts as the
75

billing agent and therefore, ACE does not record Operating revenues or Purchased power expense related to the electricity. For customers that choose to purchase electric generation from ACE, ACE is permitted to recover the electricity, ZEC, and REC procurement costs without mark-up and therefore records equal and offsetting amounts in Operating revenues and Purchased power expense related to the electricity, ZECs, and RECs.
See Note 5 - Segment Information of the new electric distribution rates chargedCombined Notes to customers that became effective in August 2016 and October 2017. Consolidated Financial Statements for the presentation of ACE's revenue disaggregation.
The increase in electric operating revenues netdecrease of purchased power expense$70 million for the year ended December 31, 20162022 compared to same period in 2021, in Purchased power expense is fully offset in Operating revenues as part of regulatory required programs.
The changes in Operating and maintenance expense consisted of the following:
2022 vs. 2021
(Decrease) Increase
Labor, other benefits, contracting and materials$(5)
Storm-related costs
BSC and PHISCO costs
Other
Regulatory required programs(a)
Total increase$11 
__________
(a)ACE is allowed to recover from or refund to customers the difference between its annual credit loss expense and the amounts collected in rates annually through the Societal Benefits Charge.
The changes in Depreciation and amortizationexpense consisted of the following:
2022 vs. 2021
Increase
Depreciation and amortization(a)
$18 
Regulatory asset amortization
Regulatory required programs(b)
62 
Total increase$82 
__________
(a)Depreciation and amortization increased primarily due to ongoing capital expenditures.
(b)Regulatory required programs increased primarily due to the regulatory asset amortization of the PPA termination obligation which is fully offset in Operating revenues.
Interest expense, net increased $8 million for the year ended December 31, 2022 compared to the same period in 2015 was2021 primarily due to the impactissuance of debt in 2021 and 2022.
Other, net increased $7 million for the year ended December 31, 2022 compared to the same period in 2021 primarily due to higher AFUDC equity.
Effective income tax rates were 2.0% and (9.8)% for the years ended December 31, 2022 and 2021, respectively. The change is primarily related to the absence of impacts of the new electric distribution rates chargedJuly 14, 2021 settlement, which allowed ACE to customers that became effectiveretain certain tax benefits in August 2016.2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Regulatory Required Programs. This representsinformation regarding the change in operating revenues collected under approved riders to recover costs incurred for regulatory programs such as energy efficiency programs. The riders are designed to provide fullJuly 14, 2021 settlement agreement and current cost recovery as well as a return. The costs of these programs are included in Operating and maintenance expense, Depreciation and amortization expense and Taxes other than income in ACE's Consolidated Statements of Operations and Comprehensive Income. Revenue from regulatory required programs decreased for the year ended December 31, 2017 compared to the same period in 2016 due to a rate decrease effective October 2016 for the ACE Transition Bond Charge and Market Transition Charge Tax. Revenue from required regulatory programs decreased for the year ended December 31, 2016 compared to the same period in 2015 due to rate decreases effective October 2016 and October 2015 for the ACE Market Transition charge tax. Refer to the Operating and maintenance expense and Depreciation and amortization expense discussion below for additional information on included programs.
Transmission Revenues.Under a FERC approved formula, transmission revenue varies from year to year based upon fluctuations in the underlying costs, capital investments being recovered and other billing adjustments. Transmission revenue increased for the year ended December 31, 2017 compared to the same period in 2016 due to higher rates effective June 1, 2017 and June 1, 2016 related to increases in transmission plant investment and operating expenses. Transmission revenue increased for the year ended December 31, 2016 compared to the same period in 2015 due to higher rates effective June 1, 2016 and June 1, 2015 related to increases in transmission plant investment and operating expenses.

Operating and Maintenance Expense
 Year Ended December 31, Increase (Decrease) Year Ended December 31, 
Increase
(Decrease)
 2017 2016 2017 vs. 2016 2016 2015 2016 vs. 2015
Operating and maintenance expense - baseline$303
 $424
 $(121) $424
 $267
 $157
Operating and maintenance expense - regulatory required programs(a)
4
 4
 
 4
 4
 
Total operating and maintenance expense$307
 $428
 $(121) $428
 $271
 $157
__________
(a)Operating and maintenance expenses for regulatory required programs are costs for various legislative and/or regulatory programs that are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues.
The changes in Operating and maintenance expense for 2017 compared to 2016 and 2016 compared to 2015 consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Baseline   
Labor, other benefits, contracting and materials$9
 $6
BSC and PHISCO allocations(a)
(11) 26
Merger commitments(b)
(111) 111
Deferral of merger-related costs to regulatory asset(9) 
Other1
 14
Total (decrease) increase$(121) $157
_________
(a)Primarily related to merger severance and compensation costs recognized in 2016.
(b)
Primarily related to merger-related commitments for customer rate credits and charitable contributions recognized in 2016.

Depreciation and Amortization Expense
The changes in Depreciation and amortization expense for 2017 compared to 2016 and 2016 compared to 2015 consisted of the following:
 Increase (Decrease) 2017 vs. 2016 Increase (Decrease) 2016 vs. 2015
Depreciation expense(a)
$6
 $6
Regulatory asset amortization(2) (4)
Required regulatory programs(b)
(24) (12)
Other1
 
Total decrease$(19) $(10)
_________
(a)Depreciation expense increased due to ongoing capital expenditures.
(b)Regulatory required programs decreased for the year ended December 31, 2017 compared to the same period in 2016 primarily as a result of lower revenue due to a rate decrease effective October 2016 for the ACE Transition Bond Charge and Market Transition Charge Tax. Required regulatory programs amortization decreased for the year ended December 31, 2016 compared to the same period in 2015 primarily as a result of lower revenue due to a rate decrease effective October 2015 for the ACE Market Transition charge tax. Depreciation and amortization expenses for regulatory required programs are recoverable from customers on a full and current basis through approved regulated rates. An equal and offsetting amount has been reflected in Operating revenues and Operating and maintenance expense.
Taxes Other Than Income 
Taxes other than income for the year ended December 31, 2017 compared to the same period in 2016, remained constant. Taxes other than income for the year ended December 31, 2016 compared to the same period in 2015, remained constant.
Interest Expense, Net
Interest expense, net remained relatively consistent for the year ended December 31, 2017, compared to the same period in 2016, and the year ended December 31, 2016, compared to the same period in 2015.
Gain on Sales of Assets
Gain on sales of assets for the year ended December 31, 2017 compared to the same period in 2016 decreased primarily due to gains recorded in 2016 at ACE associated with the sale of property. Gain on sales of assets for the year ended December 31, 2016 compared to the same period in 2015 increased primarily due to gains recorded in 2016 at ACE associated with the sale of property.
Other, Net   
Other, net for the year ended December 31, 2017 compared to the same period in 2016 remained relatively constant. Other, net for the year ended December 31, 2016 compared to the same period in 2015 increased primarily due to higher income from AFUDC equity.
Effective Income Tax Rate
ACE's effective income tax rates for the years ended December 31, 2017, 2016 and 2015 were 25.2%, 8.7%, and 45.2%, respectively. See Note 1413 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information regarding the components of the change in effective income tax rates. In the first quarter


76


Retail Deliveries to Customers (in GWhs)2017 2016 % Change 2017 vs. 2016 Weather - Normal % Change 2015 % Change 2016 vs. 2015 Weather - Normal % Change
Retail Deliveries(a)
             
Residential3,853
 4,153
 (7.2)% (6.2)% 4,322
 (3.9)% (2.9)%
Small commercial & industrial1,286
 1,455
 (11.6)% (11.1)% 1,288
 13.0 % 13.5 %
Large commercial & industrial3,399
 3,402
 (0.1)% 0.4 % 3,594
 (5.3)% (5.2)%
Public authorities & electric railroads47
 49
 (4.1)% (4.1)% 45
 8.9 % 8.9 %
Total retail deliveries8,585
 9,059
 (5.2)% (4.5)% 9,249
 (2.1)% (1.4)%
 As of December 31,
Number of Electric Customers2017 2016 2015
Residential487,168
 484,240
 482,000
Small commercial & industrial61,013
 61,008
 60,745
Large commercial & industrial3,684
 3,763
 3,871
Public authorities & electric railroads636
 610
 529
Total552,501
 549,621
 547,145
     % Change 2017 vs. 2016   % Change 2016 vs. 2015
Electric Revenue2017 2016  2015 
Retail Sales(a)
         
Residential$619
 $664
 (6.8)% $690
 (3.8)%
Small commercial & industrial166
 183
 (9.3)% 175
 4.6 %
Large commercial & industrial189
 201
 (6.0)% 213
 (5.6)%
Public authorities & electric railroads13
 13
  % 12
 8.3 %
Total retail987
 1,061
 (7.0)% 1,090
 (2.7)%
Other revenue(b)
199
 196
 1.5 % 205
 (4.4)%
Total electric revenue(c)
$1,186
 $1,257
 (5.6)% $1,295
 (2.9)%
__________
(a)Reflects delivery volumes and revenues from customers purchasing electricity directly from ACE and customers purchasing electricity from a competitive electric generation supplier as all customers are assessed distribution charges. For customers purchasing electricity from ACE, revenue also reflects the cost of energy and transmission.
(b) Other revenue includes transmission revenue from PJM and wholesale electric revenues.
(c) Includes operating revenues from affiliates totaling $2 million, $3 million and $4 million for the years ended December 31, 2017, 2016 and 2015, respectively.

Liquidity and Capital Resources
Exelon activity presented below includes the activity of PHI, Pepco, DPL and ACE, from the PHI Merger effective date of March 24, 2016 through December 31, 2017. Exelon prior year activity is unadjusted for the effects of the PHI Merger. Due to the application of push-down accounting to the PHI entity, PHI's activity is presented in two separate reporting periods, the legacy PHI activity through March 23, 2016 (Predecessor), and PHI activity for the remainder of the period after the PHI merger date (Successor). For each of Pepco, DPL and ACE the activity presented below include its activity for the years ended December 31, 2017, 2016 and 2015. All results included throughout the liquidity and capital resources section are presented on a GAAP basis.
The Registrants’ operating and capital expenditures requirements are provided by internally generated cash flows from operations, as well as funds from external sources in the capital markets and through bank borrowings. The Registrants’ businesses are capital intensive and require considerable capital resources. Each of the Registrants annually evaluates its financing plan, dividend practices, and credit line sizing, focusing on maintaining its investment grade ratings while meeting its cash needs to fund capital requirements, including construction expenditures, retire debt, pay dividends, and fund pension and OPEB obligations. The Registrants spend a significant amount of cash on capital improvements and construction projects that have a long-term return on investment. Additionally, the Utility Registrants operate in rate-regulated environments in which the amount of new investment recovery may be delayed or limited and where such recovery takes place over an extended period of time. Each Registrant’s access to external financing on reasonable terms depends on its credit ratings and current overall capital market business conditions, including that of the utility industry in general. If these conditions deteriorate to the extent that the Registrants no longer have access to the capital markets at reasonable terms, the Registrants have access to unsecured revolving credit facilities with aggregate bank commitments of $9 billion. In addition, Generation has $480 million in bilateral facilities with banks which have various expirations between January 2019 and$4.0 billion, as of December 2019.31, 2022. The Registrants utilize their credit facilities to support their commercial paper programs, provide for other short-term borrowings, and to issue letters of credit. See the “Credit Matters”Matters and Cash Requirements” section below for further discussion.additional information. The Registrants expect cash flows to be sufficient to meet operating expenses, financing costs, and capital expenditure requirements.
The Registrants primarily use their capital resources, including cash, to fund capital requirements, including construction expenditures, retire debt, pay dividends, fund pension and other postretirement benefit obligations and invest in new and existing ventures. The Registrants spend a significant amount of cash on capital improvements and construction projects that have a long-term return on investment. Additionally, ComEd, PECO, BGE, Pepco, DPL and ACE operate in rate-regulated environments in which the amount of new investment recovery may be delayed or limited and where such recovery takes place over an extended period of time. See Note 1316 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for further discussion ofadditional information on the Registrants’ debt and credit agreements.
NRC Minimum Funding Requirements
NRC regulations require that licenseesCash flows related to Generation have not been presented as discontinued operations and are included in the Consolidated Statements of nuclear generating facilities demonstrate reasonable assurance that sufficient funds will be available in certain minimum amounts to decommission the facility.  These NRC minimum funding levels are based upon the assumption that decommissioning activities will commence after the end of the current licensed life of each unit.  If a unit fails the NRC minimum funding test, then the plant’s owners or parent companies would be required to take steps, such as providing financial guarantees through letters of credit or parent company guarantees or making additional cash contributions to the NDT fund to ensure sufficient funds are available. See Note 15 - Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements for additional information on the NRC minimum funding requirements.
If a nuclear plant were to early retire there is a risk that it will no longer meet the NRC minimum funding requirements due to the earlier commencement of decommissioning activities and a shorter time period over which the NDT fund investments could appreciate in value. A shortfall could require Exelon to post parental guarantees for Generation’s share of the obligations. However, the amount of any required guarantees will ultimately depend on the decommissioning approach adopted at each site, the associated level of costs, and the decommissioning trust fund investment performance going forward.

Within two years after shutting down a plant, Generation must submit a post-shutdown decommissioning activities report (PSDAR) to the NRC that includes the planned option for decommissioning the site. As discussed in Note 15 - Asset Retirement Obligations of the Combined Notes to Consolidated Financial Statements, Generation filed its biennial decommissioning funding status report with the NRC on March 31, 2017 and demonstrated adequate funding assuranceCash Flows for all nuclear units currently operating. Asperiods presented. The Exelon Consolidated Statement of Cash Flows for the year ended December 31, 2017, across the four alternative decommissioning approaches available, Generation estimates a parental guarantee2022 includes one month of up to $90 millioncash flows from Generation. The Exelon could be required for TMI, dependent upon the ultimate decommissioning approach selected. For Oyster Creek, noneConsolidated Statement of the alternative decommissioning approaches available would require Exelon to post a parental guarantee. In the event PSEG decides to early retire Salem, Generation estimates a parental guarantee of up to $45 million from Exelon could be required for Salem, dependent upon the ultimate decommissioning approach selected.
Upon issuance of any required financial guarantees, each site would be able to utilize the respective NDT funds for radiological decommissioning costs, which represent the majority of the total expected decommissioning costs. However, the NRC must approve an additional exemption in orderCash Flows for the plant’s owner(s) to utilizeyear ended December 31, 2021 includes twelve months of cash flows from Generation. This is the NDT fund to payprimary reason for non-radiological decommissioning costs (i.e., spent fuel management and site restoration costs). If a unit does not receive this exemption, the costs would be borne by the owner(s). While the ultimate amounts may vary greatly and could be reduced by alternate decommissioning scenarios and/or reimbursement of certain costs under the United States Department of Energy reimbursement agreements or future litigation, across the four alternative decommissioning approaches available, if TMI or Oyster Creek were to fail to obtain the exemption, Generation estimates it could incur spent fuel management and site restoration costs over the next ten years of up to $225 million and $200 million net of taxes, respectively, dependent upon the ultimate decommissioning approach selected. In the event PSEG decides to early retire Salem and Salem were to fail to obtain the exemption, Generation estimates it could incur spent fuel management and site restoration costs over the next ten years of up to $80 million net of taxes.
Junior Subordinated Notes
In June 2014, Exelon issued $1.15 billion of junior subordinated noteschanges in cash flows as shown in the form of 23 million equity units at a stated amount of $50.00 per unit. Each equity unit represented an undivided beneficial ownership interest in Exelon’s $1.15 billion of 2.50% junior subordinated notes due in 2024 (“2024 notes”) and a forward equity purchase contract.  As contemplated in the June 2014 equity unit structure, in April 2017, Exelon completed the remarketing of the 2024 notes into $1.15 billion of 3.497% junior subordinated notes due in 2022 (“Remarketing”).  Exelon conducted the Remarketing on behalf of the holders of equity units and did not directly receive any proceeds therefrom. Instead, the former holders of the 2024 notes used debt remarketing proceeds towards settling the forward equity purchase contract with Exelon on June 1, 2017. Exelon issued approximately 33 million shares of common stock from treasury stock and received $1.15 billion upon settlement of the forward equity purchase contract. When reissuing treasury stock Exelon uses the average price paid to repurchase shares to calculate a gain or loss on issuance and records gains or losses directly to retained earnings. A loss on reissuance of treasury shares of $1.05 billion was recorded to retained earnings as of December 31, 2017. See Note 21 — Earnings Per Share of the Combined Notes to Consolidated Financial Statements for further information on the issuance of common stock.tables unless otherwise noted below.
Cash Flows from Operating Activities
General
Generation’s cash flows from operating activities primarily result from the sale of electric energy and energy-related products and services to customers. Generation’s future cash flows from operating activities may be affected by future demand for and market prices of energy and its ability to continue to produce and supply power at competitive costs as well as to obtain collections from customers.

The Utility Registrants' cash flows from operating activities primarily result from the transmission and distribution of electricity and, in the case of PECO, BGE, and DPL, gas distribution services. The Utility Registrants' distribution services are provided to an established and diverse base of retail customers. The Utility Registrants' future cash flows may be affected by the economy, weather conditions, future legislative initiatives, future regulatory proceedings with respect to their rates or operations, competitive suppliers, and their ability to achieve operating cost reductions. Additionally, ComEd is required to purchase CMCs from participating nuclear-powered generating facilities for a five-year period, and all of its costs of doing so will be recovered through a new rider. The price to be paid for each CMC is established through a competitive bidding process. ComEd will provide net payments to, or collect net payments from, customers for the difference between customer credits issued and the credit to be received from the participating nuclear-powered generating facilities. ComEd’s cash flows are affected by the establishment of CMC prices and the timing of recovering costs through the CMC regulatory asset.
See NotesNote 3 — Regulatory Matters and 23Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for further discussion ofadditional information on regulatory and legal proceedings and proposed legislation.
77

The following table provides a summary of the major items affecting Exelon’schange in cash flows from operationsoperating activities for the years ended December 31, 2017, 20162022 and 2015:2021 by Registrant:
 2017 2016 2017 vs. 2016 Variance 2015 2016 vs. 2015 Variance
Net income$3,849
 $1,204
 $2,645
 2,250
 $(1,046)
Add (subtract):         
Non-cash operating activities(a)
5,446
 7,722
 (2,276) 5,630
 2,092
Pension and non-pension
postretirement benefit
contributions
(405) (397) (8) (502) 105
Income taxes299
 (674) 973
 97
 (771)
Changes in working capital and other noncurrent assets and liabilities(b)
(1,579) (275) (1,304) (264) (11)
Option premiums received (paid), net28
 (66) 94
 58

(124)
Collateral received
(posted), net
(158) 931
 (1,089) 347
 584
Net cash flows provided by operations$7,480
 $8,445
 $(965) $7,616
 $829
__________
(a)Represents depreciation, amortization, depletion and accretion, net fair value changes related to derivatives, deferred income taxes, provision for uncollectible accounts, pension and non-pension postretirement benefit expense, equity in earnings and losses of unconsolidated affiliates and investments, decommissioning-related items, stock compensation expense, impairment of long-lived assets, and other non-cash charges. See Note 24 —Supplemental Financial Information of the Combined Notes to Consolidated Financial Statements for further detail on non-cash operating activity.
(b)Changes in working capital and other noncurrent assets and liabilities exclude the changes in commercial paper, income taxes and the current portion of long-term debt.
Pension and Other Postretirement Benefits
Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the Pension Protection Act of 2006 (the Act), management of the pension obligation and regulatory implications. The Act requires the attainment of certain funding levels to avoid benefit restrictions (such as an inability to pay lump sums or to accrue benefits prospectively), and at-risk status (which triggers higher minimum contribution requirements and participant notification). The projected contributions below reflect a funding strategy of contributing the greater of (1) $300 million (updated for the inclusion of PHI) until the qualified plans are fully funded on an ABO basis, and (2) the minimum amounts under ERISA to avoid benefit restrictions and at-risk status. This level funding strategy helps minimize volatility of future period required pension contributions. Unlike

the qualified pension plans, Exelon’s non-qualified pension plans are not funded given that they are not subject to statutory minimum contribution requirements.
While other postretirement plans are also not subject to statutory minimum contribution requirements, Exelon does fund certain of its plans. For Exelon's funded OPEB plans, contributions generally equal accounting costs, however, Exelon’s management has historically considered several factors in determining the level of contributions to its other postretirement benefit plans, including liabilities management, levels of benefit claims paid and regulatory implications (amounts deemed prudent to meet regulatory expectations and best assure continued rate recovery). The amounts below include benefit payments related to unfunded plans.
The following table provides all registrants' planned contributions to the qualified pension plans, planned benefit payments to non-qualified pension plans, and planned contributions to other postretirement plans in 2018:
 Qualified Pension Plans Non-Qualified Pension Plans Other
Postretirement
Benefits
Exelon$301
 $30
 $42
Generation119
 11
 13
ComEd38
 2
 3
PECO17
 1
 
BGE41
 1
 16
BSC36
 7
 1
PHI50
 8
 9
Pepco4
 2
 8
DPL
 1
 
ACE6
 
 
PHISCO40
 5
 1
To the extent interest rates decline significantly or the pension and OPEB plans earn less than the expected asset returns, annual pension contribution requirements in future years could increase. Conversely, to the extent interest rates increase significantly or the pension and OPEB plans earn greater than the expected asset returns, annual pension and OPEB contribution requirements in future years could decrease. Additionally, expected contributions could change if Exelon changes its pension or OPEB funding strategy.
On October 3, 2017, the US Department of Treasury and IRS released final regulations updating the mortality tables to be used for defined benefit pension plan funding, as well as the valuation of lump sum and other accelerated distribution options, effective for plan years beginning in 2018. The new mortality tables reflect improved projected life expectancy as compared to the existing table, which is generally expected to increase minimum pension funding requirements, Pension Benefit Guaranty Corporation premiums and the value of lump sum distributions. The IRS permits plan sponsors the option of delaying use of the new mortality tables for determining minimum funding requirements until 2019, which Exelon intends to utilize. The one-year delay does not apply for use of the mortality tables to determine the present value of lump sum distributions. The estimated impact of the new mortality tables along with other current assumptions and market information are reflected in the estimated future pension contributions in the “Contractual Obligations” section below.
The EMA requires CENG to fund the obligation related to pre-transfer service of employees, including the underfunded balance of the pension and other postretirement welfare benefit plans

measured as of July 14, 2014 by making periodic payments to Generation. These payments will be made on an agreed payment schedule or upon the occurrence of certain specified events, such as EDF’s disposition of a majority of its interest in CENG. However, in the event that EDF exercises its rights under the Put Option, all payments not made as of the put closing date shall accelerate to be paid immediately prior to such closing date. See Note 2 — Variable Interest Entities of the Combined Notes to Consolidated Financial Statements for additional information regarding the investment in CENG.
Tax Matters
The Registrants’ future cash flows from operating activities may be affected by the following tax matters:
Pursuant to the TCJA, beginning in 2018 Generation is expected to have higher operating cash flows in the range of approximately $1.2 billion to $1.6 billion for the period from 2018 to 2021, reflecting the reduction in the corporate federal income tax rate and full expensing of capital investments.
The TCJA is generally expected to result in lower operating cash flows for the Utility Registrants as a result of the elimination of bonus depreciation and lower customer rates. Increased operating cash flows for the Utility Registrants from lower corporate federal income tax rates is expected to be more than offset over time by lower customer rates resulting from lower income tax expense recoveries and the settlement of deferred income tax net regulatory liabilities established pursuant to the TCJA. The amount and timing of settlement of the net regulatory liabilities will be determined by the Utility Registrants’ respective rate regulators, subject to certain IRS “normalization” rules. The table below sets forth the Registrants’ estimated categorization of their net regulatory liabilities as of December 31, 2017. The amounts in the table below are shown on an after-tax basis reflecting future net cash outflows after taking into consideration the income tax benefits associated with the ultimate settlement with customers.
         Successor      
 Exelon ComEd 
PECO(a)
 BGE PHI PEPCO DPL ACE
Subject to IRS Normalization Rules$3,040
 $1,400
 $533
 $459
 $648
 $299
 $195
 $153
Subject to Rate Regulator Determination1,694
 573
 43
 324
 754
 391
 194
 170
Net Regulatory Liabilities$4,734
 $1,973
 $576
 $783
 $1,402
 $690
 $389
 $323
__________
(a)Given the regulatory treatment of income tax benefits related to electric and gas distribution repairs, PECO remains in an overall net regulatory asset position as of December 31, 2017 after recording the impacts related to the TCJA. As a result, the amount of customer benefits resulting from the TCJA subject to the discretion of PECO's rate regulators are lower relative to the other Utility Registrants. Refer to Note 3 - Regulatory Matters for additional information.
Net regulatory liability amounts subject to normalization rules generally may not be passed back to customers any faster than over the remaining useful lives of the underlying assets giving rise to the associated deferred income taxes. Such deferred income taxes generally relate to property, plant and equipment with remaining useful lives ranging from 30 to 40 years across the Utility Registrants. For the remaining amounts, rate regulators could require the passing back of amounts to customers over shorter time frames, which could materially decrease operating cash outflows at each of the Utility Registrants in the near term.
The Utility Registrants expect to fund any such required incremental operating cash outflows using a combination of third party debt financings and equity funding from Exelon in combinations generally consistent with existing capitalization ratio structures. To fund any additional equity contributions to the Utility Registrants, Exelon would have available to it its typical sources, including, but not limited to, the increased operating cash flows at Generation

referenced above, which over time are expected to exceed the incremental equity needs at the Utility Registrants.            
The Utility Registrants continue to work with their state regulatory commissions to determine the amount and timing of the passing back of TCJA income tax savings benefits to customers; with filings either made, or expected to be made, at Pepco, DPL and ACE, and approved filings at ComEd and BGE. The amounts being passed back or proposed to be passed back to customers reflect the benefit of lower income tax expense beginning January 1, 2018 (Feb. 1, 2018 for DPL Delaware), and the settlement of a portion of deferred income tax regulatory liabilities established upon enactment of the TCJA. To date, neither the PAPUC nor FERC has yet issued guidance on how and when to reflect the impacts of the TCJA in customer rates. Refer to Note 3 - Regulatory Matters of the Combined Notes to the Consolidated Financial Statements for additional information on their filings.
In general, most states use federal taxable income as the starting point for computing state corporate income tax. Now that the TCJA has been enacted, state governments are beginning to analyze the impact of the TCJA on their state revenues. Exelon is uncertain regarding what the state governments will do, and there is a possibility that state corporate income taxes could change due to the enactment of the TCJA. In 2018, Exelon will be closely monitoring the states’ responses to the TCJA as these could have an impact on Exelon’s future cash flows.
See Note 14 - Income Taxes of the Combined Notes to Consolidated Financial Information for further information on the amounts of the net regulatory liabilities subject to determinations by rate regulators.
Exelon appealed the Tax Court’s like-kind exchange decision in the third quarter of 2017. In the fourth quarter of 2017, the IRS assessed the tax, penalties and interest of approximately $1.3 billion related to the like-kind exchange, including $300 million attributable to ComEd. While Exelon will receive a tax benefit of approximately $350 million associated with the deduction for the interest, Exelon currently has a net operating loss carryforward and thus does not expect to realize the cash benefit until 2018. After taking into account these interest deduction tax benefits, the total estimated net cash outflow for the like-kind exchange is approximately $950 million, of which approximately $300 million is attributable to ComEd after giving consideration to Exelon’s agreement to hold ComEd harmless from any unfavorable impacts on ComEd’s equity from the like-kind exchange position.
Of the above amounts payable, Exelon deposited with the IRS $1.25 billion in October of 2016. Exelon funded the $1.25 billion deposit with a combination of cash on hand and short-term borrowings. As a result of the IRS’s assessment of the tax, penalties and interest in the fourth quarter of 2017, the deposit is no longer available to Exelon and thus was reclassified from a current asset and is now reflected as an offset to the related liabilities for the tax, penalties, and interest that are included on Exelon’s balance sheet as current liabilities. The remaining amount due of approximately $20 million was paid in the fourth quarter of 2017. In the third quarter of 2017, the $300 million payable discussed above attributable to ComEd, net of ComEd’s receivable pursuant to the hold harmless agreement, was settled with Exelon. See Note 14 - Income Taxes of the Combined Notes to Consolidated Financial Statements for further discussion of the like-kind exchange tax position.
State and local governments continue to face increasing financial challenges, which may increase the risk of additional income tax, property taxes and other taxes or the imposition, extension or permanence of temporary tax increases. On July 6, 2017, Illinois enacted Senate Bill 9, which permanently increased Illinois’ total corporate income tax rate from 7.75% to 9.50% effective July 1, 2017. The rate increase is not expected to have a material ongoing

impact to Exelon’s, Generation’s or ComEd’s future cash taxes. See Note 14 - Income Taxes of the Combined Notes to Consolidated Financial Statements for further discussion of the Illinois tax rate change.
Cash flows provided by operations for the year ended December 31, 2017, 2016 and 2015 by Registrant were as follows:
 2017 2016 2015
Exelon$7,480
 $8,445
 $7,616
Generation3,299
 4,444
 4,199
ComEd1,527
 2,505
 1,896
PECO755
 829
 770
BGE821
 945
 782
Pepco407
 651
 373
DPL321
 310
 266
ACE206
 385
 256
 Successor  Predecessor
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI$950
 $888
  $264
 $939
Increase (decrease) in cash flows from operating activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Net income$342 $175 $72 $(28)$47 $$41 $
Adjustments to reconcile net income to cash:
Non-cash operating activities(2,382)(176)124 173 259 93 25 141 
Option premiums paid, net299 — — — — — — — 
Collateral received (posted), net1,322 51 — 16 99 22 35 42 
Income taxes(331)— (25)(37)(18)(30)(13)11 
Pension and non-pension postretirement benefit contributions49 12 — 13 (30)— — (4)
Regulatory assets and liabilities, net(692)(645)(24)(8)(37)12 (43)
Changes in working capital and other noncurrent assets and liabilities3,251 185 (79)(98)(227)(97)(64)(60)
Increase (decrease) in cash flows from operating activities$1,858 $(398)$68 $31 $93 $$33 $89 
Changes in the Registrants' cash flows from operations were generally consistent with changes in each Registrant’s respective results of operations, as adjusted by changes in working capital in the normal course of business, except as discussed below. In addition, significantSee above for additional information related to cash flows from Generation. Significant operating cash flow impacts for the Registrants and Generation for 2017, 20162022 and 20152021 were as follows:
GenerationSee Note 22 —Supplemental Financial Information of the Combined Notes to Consolidated Financial Statements and the Registrants’ Consolidated Statements of Cash Flows for additional information on non-cash operating activities.
DependingChanges in collateral depended upon whether Generation iswas in a net mark-to-market liability or asset position, and collateral may behave been required to be posted with or collected from its counterparties. In addition, the collateral posting and collection requirements differdiffered depending on whether the transactions arewere on an exchange or in the OTCover-the-counter markets. During 2017, 2016 and 2015, Generation had net collections/(payments)Changes in collateral for the Utility Registrants are dependent upon the credit exposure of counterparty cash collateral of $(129) million, $923 million and $407 million, respectively, primarily dueprocurement contracts that may require suppliers to market conditions that resulted in changes to Generation’s net mark-to-market position.
During 2017, 2016 and 2015, Generation had net collections/(payments) of approximately $28 million, $(66) million and $58 million, respectively, related to purchases and sales of options.post collateral. The level of option activity in a given year may vary due to several factors, including changes in market conditions as well as changes in hedging strategy.
ComEd
During 2017, 2016, and 2015 ComEd (posted)/received approximately $(27 million), $7 million, and $(31 million)amount of cash collateral with/received from PJM, respectively. ComEd’s collateral posted with PJM hasexternal counterparties increased from 2017 to 2016, primarily due to an increase in ComEd’s RPM credit requirements and peak market activity with PJM.  The collateral posted with PJM decreased from 2016 to 2015 due to lower PJM billings.rising energy prices. See Note 15 — Derivative Financial Instruments for additional information.
For further discussion regarding changes in non-cash operating activities, please refer toSee Note 2413Supplemental Financial InformationIncome Taxes of the Combined Notes to Consolidated Financial Statements.Statements and the Registrants' Consolidated Statements of Cash Flows for additional information on income taxes.

Changes in regulatory assets and liabilities, net, are due to the timing of cash payments for costs recoverable, or cash receipts for costs recovered, under our regulatory mechanisms differs from the recovery period of those costs. Included within the changes is energy efficiency spend for ComEd of $394 million and $343 million for the years ended December 31, 2022 and 2021, respectively. Also included within the changes is energy efficiency and demand response programs spend for BGE, Pepco, DPL, and ACE of $113 million, $71 million, $28 million, and $11 million for the year ended December 31, 2022, respectively, and $107 million, $72 million, $29 million, and $4 million for the year ended December 31, 2021, respectively. PECO had no energy efficiency and demand response programs spend recorded to a regulatory asset for the years ended December 31, 2022 and 2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Changes in working capital and other noncurrent assets and liabilities for the Utility Registrants and Exelon Corporate total $(304) million and for Generation total $3,555 million. The change for Generation primarily relates to the revolving accounts receivable financing arrangement. See the Collection of DPP discussion below for additional information. The change in working capital and other noncurrent assets and liabilities for Exelon Corporate and the Utility Registrants is dependent upon the normal course of operations for all Registrants. For ComEd, it is also
78

dependent upon whether the participating nuclear-powered generating facilities owe money to ComEd as a result of the established pricing for CMCs. In 2022, the established pricing resulted in a receivable from nuclear-powered generating facilities, which is reported within the cash flows from operations as a change in accounts receivable. In future periods the established pricing could result in ComEd owing payments to nuclear-powered generating facilities, which would be reported within cash flows from operations as a change in accounts payable and accrued expenses.
Cash Flows from Investing Activities
CashThe following table provides a summary of the change in cash flows used infrom investing activities for the yearyears ended December 31, 2017, 20162022 and 20152021 by Registrant were as follows:Registrant:
 2017 2016 2015
Exelon$(7,934) $(15,503) $(7,822)
Generation (a)
(2,592) (3,851) (4,069)
ComEd(2,296) (2,685) (2,362)
PECO(597) (798) (588)
BGE(849) (910) (675)
Pepco(630) (647) (477)
DPL(429) (336) (345)
ACE(310) (309) (306)
 Successor  Predecessor
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI$(1,396) $(1,030)  $(343) $(1,161)
Increase (decrease) in cash flows from investing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Capital expenditures$834 $(119)$(109)$(36)$11 $(31)$(1)$47 
Investment in NDT fund sales, net113 — — — — — — — 
Collection of DPP(3,733)— — — — — — — 
Proceeds from sales of assets and businesses(861)— — — — — — — 
Other investing activities(26)(1)(7)(1)— 
(Decrease) increase in cash flows from investing activities$(3,673)$(117)$(110)$(43)$15 $(27)$(2)$47 
Significant investing cash flow impacts for the Registrants for 2017, 20162022 and 20152021 were as follows:
Exelon
During 2017, Exelon had additionalVariances in capital expenditures of $23 million and $178 million relating are primarily due to the ConEdison Solutionstiming of cash expenditures for capital projects. See the "Credit Matters and Cash Requirements" section below for additional information on projected capital expenditure spending for the acquisitionsUtility Registrants. See Note 2 — Discontinued Operations of the FitzPatrick nuclear generating station, respectively. During 2016, Exelon had expenditures of $6.6 billion, $235 million, and $58 million relatingCombined Notes to the acquisitions of PHI, ConEdison Solutions and the acquisitions of the FitzPatrick nuclear generating station, respectively.
During 2017, Exelon had proceeds of $219 million from sales of long-lived assets.
During 2016, Exelon had proceeds of $360 million as a result of early termination of direct financing leases.
Generation
During 2017, Generation had additional expenditures of $23 million and $178 million relating to the ConEdison Solutions and the acquisitions of the FitzPatrick nuclear generating station, respectively. During 2016, Generation had expenditures of $235 million, and $58 million relating to the acquisitions of ConEdison Solutions and the acquisitions of the FitzPatrick nuclear generating station, respectively.
During 2017, Generation had proceeds of $218 million from sales of long-lived assets.
Capital Expenditure Spending
Generation
Generation has entered into several agreements to acquire equity interests in privately held development stage entities which develop energy-related technology.  The agreements contain a series of scheduled investment commitments, including in-kind services contributions. There are anticipated expenditures to fund anticipated planned capital and operating needs of the associated companies.

Capital expenditures by RegistrantConsolidated Financial Statements for the year ended December 31, 2017, 2016 and 2015 and projected amounts for 2018 are as follows:
 
Projected
2018 (a)
 2017 2016 2015
Exelon(b)
$7,825
 $7,584
 $8,553
 $7,624
Generation2,100
 2,259
 3,078
 3,841
ComEd(c)
2,125
 2,250
 2,734
 2,398
PECO800
 732
 686
 601
BGE 
1,000
 882
 934
 719
Pepco725
 628
 586
 544
DPL400
 428
 349
 352
ACE375
 312
 311
 300
   Successor  Predecessor
 
Projected 2018 (a)
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI(d)
$1,500
 $1,396
 $1,008
  $273
 $1,230
__________
(a)Total projected capital expenditures do not include adjustments for non-cash activity.
(b)Includes corporate operations, BSC and PHISCO rounded to the nearest $25 million.
(c)The capital expenditures and 2018 projections include $86 million of expected incremental spending pursuant to EIMA, ComEd has committed to invest approximately $2.6 billion over a ten-year period to modernize and storm-harden its distribution system and to implement smart grid technology.
(d)Includes PHISCO rounded to the nearest $25 million.
Projected capital expenditures and other investments are subject to periodic review and revision to reflect changes in economic conditions and other factors.
Generation
Approximately 40% and 10% of the projected 2018 capital expenditures at Generation are for the acquisition of nuclear fuel, and the construction of new natural gas plants and solar facilities, respectively, with the remaining amounts reflecting investment in renewable energy and additions and upgrades to existing facilities (including material condition improvements during nuclear refueling outages). Generation anticipates that they will fund capital expenditures with internally generated funds and borrowings.
ComEd, PECO, BGE, Pepco, DPL and ACE
Projected 2018 capital expenditures at the Utility Registrants are for continuing projects to maintain and improve operations, including enhancing reliability and adding capacity to the transmission and distribution systems such as ComEd’s reliability related investments required under EIMA, and the Utility Registrants' construction commitments under PJM’s RTEP.
The Utility Registrants as transmission owners are subject to NERC compliance requirements. NERC provides guidance to transmission owners regarding assessments of transmission lines. The results of these assessments could require the Utility Registrants to incur incremental capital or operating and maintenance expenditures to ensure their transmission lines meet NERC standards. In 2010, NERC provided guidance to transmission owners that recommended the Utility Registrants perform assessments of their transmission lines. ComEd, PECO and BGE submitted their final bi-annual reports to NERC in January 2014. ComEd, PECO and BGE will be incurring incremental capital expenditures associated with this guidance following the completion of the assessments. Specific projects and

expenditures are identified as the assessments are completed. ComEd’s, PECO’s and BGE’s forecasted 2018 capital expenditures above reflect capital spending for remediation to be completed through 2019. Pepco, DPL and ACE have substantially completed their assessments and thus do not expect significant capital expenditures related to this guidanceGeneration prior to the separation.
Collection of DPP relates to Generation's revolving accounts receivable financing agreement which Generation entered into in 2018.April 2020. Generation received $400 million of additional funding related to the DPP in February and March of 2021.
The Utility Registrants anticipate that they will fund their capital expenditures withProceeds from sales of assets and businesses decreased primarily due to the sale of a combinationsignificant portion of internally generated fundsGeneration's solar business and borrowings and additional capital contributions from parent.a biomass facility in 2021.
Cash Flows from Financing Activities
CashThe following table provides a summary of the change in cash flows provided by (used in)from financing activities for the yearyears ended December 31, 2017, 20162022 and 20152021 by RegistrantRegistrant:
(Decrease) increase in cash flows from financing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Changes in short-term borrowings, net$(513)$900 $239 $148 $(154)$(16)$(37)$(101)
Long-term debt, net2,395 (50)(25)(50)50 40 — 10 
Changes in intercompany money pool— — 40 — 51 — — — 
Issuance of common stock563 — — — — — — — 
Dividends paid on common stock163 (71)(60)(8)— (195)143 
Acquisition of noncontrolling interest885 — — — — — — — 
Distributions to member— — — — (47)— — — 
Contributions from parent/member— (121)(140)29 104 221 27 (144)
Transfer of cash, restricted cash, and cash equivalents to Constellation(2,594)— — — — — — — 
Other financing activities(66)(6)(5)(5)(4)— — 
Increase (decrease) in cash flows from financing activities$833 $663 $48 $114 $(1)$46 $(6)$(92)
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Significant financing cash flow impacts for the Registrants for 2022 and 2021 were as follows:
 2017 2016 2015
Exelon$717
 $1,191
 $4,830
Generation(581) (734) (479)
ComEd789
 169
 467
PECO50
 (263) 83
BGE22
 (21) (162)
Pepco219
 
 103
DPL64
 67
 80
ACE5
 22
 51
 Successor  Predecessor
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI$306
 $(7)  $372
 $233
Debt
SeeChanges in short-term borrowings, net, are driven by repayments on and issuances of notes due in less than 365 days. Refer to Note 1316 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for further detailsadditional information on short-term borrowings for the Registrants. These changes also included repayments of $552 million in commercial paper and term loans by Generation prior to the separation.
Long-term debt, net, varies due to debt issuances and redemptions each year. Refer to the debt issuances and redemptions tables below for additional information for the Registrants.
Changes inintercompany money pool are driven by short-term borrowing needs. Refer below for more information regarding the intercompany money pool.
Issuance of common stock relates to the August 2022 underwritten public offering of Exelon common stock. See Note 19 — Shareholders' Equity of the Combined Notes to Consolidated Financial Statements for additional information.
Exelon’s ability to pay dividends on its common stock depends on the receipt of dividends paid by its operating subsidiaries. The payments of dividends to Exelon by its subsidiaries in turn depend on their results of operations and cash flows and other items affecting retained earnings. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information on dividend restrictions. See below for quarterly dividends declared.
Acquisition of noncontrolling interest relates to Generation's acquisition of CENG noncontrolling interest in 2021.
Refer to Note 2 — Discontinued Operations for the transfer of cash, restricted cash, and cash equivalents to Constellation related to the separation.
Other financing activities primarily consists of debt issuance costs. See debt issuances table below for additional information on the Registrants’ debt issuances.
80

Debt Issuances and Redemptions
See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information of the Registrants’ debt issuances and retirements.long-term debt. Debt activity for 2017, 20162022 and 20152021 by Registrant was as follows:
During the year ended December 31, 2017,2022, the following long-term debt was issued:
Company Type Interest Rate Maturity Amount Use of Proceeds
Exelon Corporate Junior Subordinated Notes 3.50% June 1, 2022 $1,150
 Refinance Exelon's Junior Subordinated Notes issued in June 2014.
Generation 
Albany Green Energy Project Financing (a)
 LIBOR + 1.25%
 November 17, 2017 $14
 Albany Green Energy biomass generation development.
Generation 
Energy Efficiency Project Financing (a)
 3.90% February 1, 2018 $19
 Funding to install energy conservation measures for the Naval Station Great Lakes project.
Generation 
Energy Efficiency Project Financing (a)
 3.72% May 1, 2018 $5
 Funding to install energy conservation measures for the Smithsonian Zoo project.

Company Type Interest Rate Maturity Amount Use of ProceedsCompanyTypeInterest RateMaturityAmountUse of Proceeds
Generation 
Energy Efficiency Project Financing (a)
 2.61% September 30, 2018 $13
 Funding to install energy conservation measures for the Pensacola project.
Generation 
Energy Efficiency Project Financing (a)
 3.53% April 1, 2019 $8
 Funding to install energy conservation measures for the State Department project.
Generation Senior Notes 2.95% January 15, 2020 $250
 Repay outstanding commercial paper obligations and for general corporate purposes.
Generation Senior Notes 3.40% March 15, 2022 $500
 Repay outstanding commercial paper obligations and for general corporate purposes.
Generation 
ExGen Texas Power Nonrecourse Debt (b)(c)
 LIBOR + 4.75%
 September 18, 2021 $6
 General corporate purposes.
Generation 
ExGen Renewables IV, Nonrecourse Debt (b)
 LIBOR + 3.00%
 November 30, 2024 $850
 General corporate purposes.
ExelonExelonSMBC Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
$300Fund a cash payment to Constellation and for general corporate purposes.
ExelonExelonU.S. Bank Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
300Fund a cash payment to Constellation and for general corporate purposes.
ExelonExelonPNC Term Loan AgreementSOFR plus 0.65%
July 24, 2023(a)
250Fund a cash payment to Constellation and for general corporate purposes.
ExelonExelon
Notes(b)
2.75%March 15, 2027650Repay existing indebtedness and for general corporate purposes.
ExelonExelon
Notes(b)
3.35%March 15, 2032650Repay existing indebtedness and for general corporate purposes.
ExelonExelon
Notes(b)
4.10%March 15, 2052700Repay existing indebtedness and for general corporate purposes.
ExelonExelonLong-Term Software License Agreements2.30%December 1, 202517Procurement of software licenses
ExelonExelonLong-Term Software License Agreements3.70%August 9, 20258Procurement of software licenses
ExelonExelonSMBC Term Loan AgreementSOFR plus 0.85%April 7, 2024500Repay existing indebtedness and for general corporate purposes.
ComEd(c)
ComEd(c)
First Mortgage Bonds, Series 1323.15%March 15, 2032300Repay outstanding commercial paper obligations and to fund other general corporate purposes.
ComEd First Mortgage Bonds, Series 122 2.95% August 15, 2027 $350
 Refinance maturing mortgage bonds, repay a portion of ComEd’s outstanding commercial paper obligations and for general corporate purposes.ComEdFirst Mortgage Bonds, Series 1333.85%March 15, 2052450Repay outstanding commercial paper obligations and to fund other general corporate purposes.
ComEd First Mortgage Bonds, Series 123 3.75% August 15, 2047 $650
 Refinance maturing mortgage bonds, repay a portion of ComEd’s outstanding commercial paper obligations and for general corporate purposes.
PECOPECOFirst and Refunding Mortgage Bonds4.60%May 15, 2052350Refinance existing indebtedness and for general corporate purposes.
PECO First and Refunding Mortgage Bonds 3.70% September 15, 2047 $325
 General corporate purposes.PECOFirst and Refunding Mortgage Bonds4.375%August 15, 2052425Refinance outstanding commercial paper and for general corporate purposes.
BGE Senior Notes 3.75% August 15, 2047 $300
 Redeem $250 million in principal amount of the 6.20% Deferrable Interest Subordinated Debentures due October 15, 2043 issued by BGE's affiliate BGE Capital Trust II, repay commercial paper obligations and for general corporate purposes.
BGENotes4.55%June 1, 2052500Repay outstanding commercial paper obligations, repay existing indebtedness, and for general corporate purposes.
Pepco 
Energy Efficiency Project Financing (a)
 3.30% December 15, 2017 $2
 Funding to install energy conservation measures for the DOE Germantown project.PepcoFirst Mortgage Bonds3.97%March 24, 2052400Repay existing indebtedness and for general corporate purposes.
Pepco First Mortgage Bonds 4.15% March 15, 2043 $200
 Funding to repay outstanding commercial paper and for general corporate purposes.PepcoFirst Mortgage Bonds3.35%September 15, 2032225Repay existing indebtedness and for general corporate purposes.
DPLDPLFirst Mortgage Bonds3.06%February 15, 2052125Repay existing indebtedness and for general corporate purposes.
ACEACEFirst Mortgage Bonds2.27%February 15, 203225Repay existing indebtedness and for general corporate purposes.
ACEACEFirst Mortgage Bonds3.06%February 15, 2052150Repay existing indebtedness and for general corporate purposes.
__________
(a)For Energy Efficiency Project Financing, the maturity dates represent the expected date of project completion, upon which the respective customer assumes the outstanding debt.
(b)See Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for discussion of nonrecourse debt.
(c)As a result of the bankruptcy filing for EGTP on November 7, 2017, the nonrecourse debt was deconsolidated from Exelon's and Generation's consolidated financial statements. Refer to Note 4 — Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for further discussion.

(a)During the third quarter of 2022, the SMBC Term Loan, U.S. Bank Term Loan, and PNC Term Loan were all reclassified to Long-term debt due within one year ended December 31, 2016,on the Exelon Consolidated Balance Sheet, given that the Term Loans have maturity dates of July 21, 2023 , and July 24, 2023, respectively.
(b)In connection with the issuance and sale of the Notes, Exelon entered into a Registration Rights Agreement with the representatives of the initial purchasers of the Notes and other parties. Pursuant to the Registration Rights Agreement,
81

Exelon filed a registration statement on August 3, 2022, with respect to an offer to exchange the Notes for substantially similar notes of Exelon that are registered under the Securities Act. An exchange offer of registered notes for the Notes was completed on January 12, 2023. The registered notes issued in exchange for Notes in the exchange offer have terms identical in all respects to the Notes, except that their issuance was registered under the Securities Act.
(c)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
During 2021, the following long termlong-term debt was issued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonLong-Term Software License Agreements3.62%December 1, 2025$4Procurement of software licenses.
ComEdFirst Mortgage Bonds, Series 1303.13%March 15, 2051700Repay a portion of outstanding commercial paper obligations and two outstanding term loans, and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1312.75%September 1, 2051450Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds3.05%March 15, 2051375Funding for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds2.85%September 15, 2051375Refinance existing indebtedness and for general corporate purposes.
BGESenior Notes2.25%June 15, 2031600Repay a portion of outstanding commercial paper obligations, repay existing indebtedness, and to fund other general corporate purposes.
PepcoFirst Mortgage Bonds2.32%March 30, 2031150Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.29%September 28, 2051125Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.24%March 30, 2051125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.30%March 15, 2031350Refinance existing indebtedness, repay outstanding commercial paper obligations, and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203275Repay existing indebtedness and for general corporate purposes.
Company Type Interest Rate Maturity Amount Use of Proceeds
Exelon Corporate Senior Unsecured Notes 2.45% April 15, 2021 $300
 Repay commercial paper issued by PHI and for general corporate purposes.
Exelon Corporate Senior Unsecured Notes 3.40% April 15, 2026 $750
 Repay commercial paper issued by PHI and for general corporate purposes.
Exelon Corporate Senior Unsecured Notes 4.45% April 15, 2046 $750
 Repay commercial paper issued by PHI and for general corporate purposes.
Generation 
Renewable Power Generation Nonrecourse Debt(a)
 4.11% March 31, 2035 $150
 Paydown long-term debt obligations at Sacramento PV Energy and Constellation Solar Horizons and for general corporate purposes.
Generation 
Albany Green Energy Project Financing (b)
 LIBOR + 1.25%
 November 17, 2017 $98
 Albany Green Energy biomass generation development
Generation 
Energy Efficiency Project Financing (b)
 3.17% December 31, 2017 $16
 Funding to install energy conservation measures in Brooklyn, NY.
Generation 
Energy Efficiency Project Financing (b)
 3.90% January 31, 2018 $19
 Funding to install energy conservation measures for the Naval Station Great Lakes project.
Generation 
Energy Efficiency Project Financing (b)
 3.52% April 30, 2018 $14
 Funding to install energy conservation measures for the Smithsonian Zoo project.
Generation 
SolGen Nonrecourse Debt (a)
 3.93% September 30, 2036 $150
 General corporate purposes.
Generation 
Energy Efficiency Project Financing (b)
 3.46% October 1, 2018 $36
 Funding to install energy conservation measures or the Marine Corps Logistics Base project.
Generation 
Energy Efficiency Project Financing (b)
 2.61% September 30, 2018 $4
 Funding to install energy conservation measures for the Pensacola project
ComEd First Mortgage Bonds, Series 120 2.55% June 15, 2026 $500
 Refinance maturing mortgage bonds, repay a portion of ComEd's outstanding commercial paper obligations and for general corporate purposes.
ComEd First Mortgage Bonds, Series 121 3.65% June 15, 2046 $700
 Refinance maturing mortgage bonds, repay a portion of ComEd's outstanding commercial paper obligations and for general corporate purposes.
PECO First Mortgage Bonds 1.70% September 15, 2021 $300
 Refinance maturing mortgage bonds.
BGE Notes 2.40% August 15, 2026 $350
 Redeem the $190M of outstanding preference shares and for general corporate purposes.

BGE Notes 3.50% August 15, 2046 $500
 Redeem the $190M of outstanding preference shares and for general corporate purposes.
Pepco 
Energy Efficiency Project Financing(b)
 3.30% December 15, 2017 $4
 Funding to install energy conservation measures for the DOE Germantown project.
DPL First Mortgage Bonds 4.15% May 15, 2045 $175
 Refinance maturing mortgage bonds, repay commercial paper and for general corporate purposes.
__________
(a)See Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for discussion of nonrecourse debt.
(b)For Energy Efficiency Project Financing, the maturity dates represent the expected date of project completion, upon which the respective customer assumes the outstanding debt.
During the year ended December 31, 2015, the following long term-debt was issued:
Company Type Interest Rate Maturity Amount Use of Proceeds
Exelon Corporate Senior Unsecured Notes 1.55% June 9, 2017 $550
 Finance a portion of the pending merger with PHI and related costs and expenses and for general corporate purposes.
Exelon Corporate Senior Unsecured Notes 2.85% June 15, 2020 $900
 Finance a portion of the pending merger with PHI and related costs and expenses and for general corporate purposes.
Exelon Corporate Senior Unsecured Notes 3.95% June 15, 2025 $1,250
 Finance a portion of the pending merger with PHI and related costs and expenses and for general corporate purposes.
Exelon Corporate Senior Unsecured Notes 4.95% June 15, 2035 $500
 Finance a portion of the pending merger with PHI and related costs and expenses and for general corporate purposes.
Exelon Corporate Senior Unsecured Notes 5.10% June 15, 2045 $1,000
 Finance a portion of the pending merger with PHI and related costs and expenses and for general corporate purposes.
Exelon Corporate Long-Term Software License Agreement 3.95% May 1, 2024 $111
 Procurement of software licenses.
Generation Senior Unsecured Notes 2.95% January 15, 2020 $750
 Fund the optional redemption of Exelon's $550 million, 4.550% Senior Notes and for general corporate purposes.
Generation 
AVSR DOE Nonrecourse Debt(a)
 2.29 - 2.96%
 January 5, 2037 $39
 Antelope Valley solar development.
Generation 
Energy Efficiency Project Financing(b)
 3.71% July 31, 2017 $42
 Funding to install energy conservation measures in Coleman, Florida.

Generation 
Energy Efficiency Project Financing(b)
 3.55% November 15, 2016 $19
 Funding to install energy conservation measures in Frederick, Maryland.
Generation Tax Exempt Pollution Control Revenue Bonds 2.50 - 2.70%
 2019 - 2020 $435
 General corporate purposes.
Generation 
Albany Green Energy Project Financing(b)
 LIBOR + 1.25%
 November 17, 2017 $100
 Albany Green Energy biomass generation development.
Generation Nuclear Fuel
Purchase Contract
 3.15% September 30, 2020 $57
 Procurement of uranium.
ComEd First Mortgage Bonds, Series 118 3.70% March 1, 2045 $400
 Refinance maturing mortgage bonds, repay a portion of ComEd's outstanding commercial paper obligations and for general corporate purposes.
ComEd First Mortgage Bonds, Series 119 4.35% November 15, 2045 $450
 Repay a portion of ComEd's outstanding commercial paper obligations and for general corporate purposes.
PECO First and Refunding Mortgage Bonds 3.15% October 15, 2025 $350
 General corporate purposes
Pepco First Mortgage Bonds 4.15% March 15, 2043 $200
 Repay outstanding commercial paper obligations and general corporate purposes
DPL First Mortgage Bonds 4.15% May 15, 2045 $200
 Repay outstanding commercial paper obligations and general corporate purposes
ACE First Mortgage Bonds 3.50% December 1, 2025 $150
 Repay outstanding commercial paper obligations and general corporate purposes
__________
(a)See Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for discussion of nonrecourse debt.
(b)For Energy Efficiency Project Financing, the maturity dates represent the expected date of project completion, upon which the respective customer assumes the outstanding debt.


During the year ended December 31, 2017,2022, the following long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonJunior Subordinated Notes3.50%May 2, 2022$1,150 
ExelonLong-Term Software License Agreement3.96%May 1, 20242
ExelonLong-Term Software License Agreement2.30%December 1, 2025
ExelonLong-Term Software License Agreement3.70%August 9, 2025
PECOFirst Mortgage Bonds2.375%September 15, 2022350 
BGENotes2.80%August 15, 2022250
PepcoFirst Mortgage Bonds3.05%April 1, 2022200
PepcoTax-Exempt Bonds1.70%September 1, 2022110
Additionally, in connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle an intercompany loan that mirrored the terms and amounts of the third-party debt obligations. The loan agreements were entered into as part of the 2012 Constellation merger. See Note 16
82

Company Type Interest Rate Maturity Amount
Exelon Corporate Long-Term Software License Agreement 3.95% May 1, 2024 $24
Exelon Corporate Senior Notes 1.55% June 9, 2017 $550
Generation Senior Notes - Exelon Wind 2.00% July 31, 2017 $1
Generation 
CEU Upstream
Nonrecourse Debt
(a)
 LIBOR + 2.25% January 14, 2019 $6
Generation 
SolGen Nonrecourse Debt (a)
 3.93% September 30, 2036 $2
Generation 
AVSR DOE Nonrecourse Debt (a)
 2.29% - 3.56% January 5, 2037 $22
Generation Kennett Square Capital Lease 7.83% September 20, 2020 $2
Generation 
Continental Wind Nonrecourse Debt (a)
 6.00% February 28, 2033 $31
Generation PES - PGOV Notes Payable 6.70-7.60% 2017 - 2018 $1
Generation 
ExGen Texas Power
Nonrecourse Debt
(a)(b)
 LIBOR + 4.75% September 18, 2021 $665
Generation 
Renewable Power Generation Nonrecourse Debt (a)
 4.11% March 31, 2035 $14
Generation NUKEM 3.25% - 3.35% June 30, 2018 $23
Generation ExGen Renewables I, Nonrecourse Debt LIBOR + 4.25% February 6, 2021 $233
Generation Senior Notes 6.20% October 1, 2017 $700
Generation Albany Green Energy Project Financing LIBOR + 1.25% November 17, 2017 $212
ComEd First Mortgage Bonds 6.15% September 15, 2017 $425
BGE Rate Stabilization Bonds 5.82% April 1, 2017 $41
BGE Capital Trust Preferred Securities 6.20% October 15, 2043 $258
PHI Senior Notes 6.13% June 1, 2017 $81
DPL Medium Term Notes, Unsecured 7.56% - 7.58% February 1, 2017 $14
DPL Variable Rate Demand Bonds Variable October 1, 2017 $26
Pepco Third Party Financing 6.97% - 7.99% 2018 - 2022 $1
ACE Transition Bonds 5.05% - 5.55% 2020 - 2023 $35
__________
(a)See Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for discussion of nonrecourse— Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the mirror debt.
(b)As a result of the bankruptcy filing for EGTP on November 7, 2017, the nonrecourse debt was deconsolidated from Exelon's and Generation's consolidated financial statements. Refer to Note 4 — Mergers, Acquisitions and Dispositions for further discussion.

During the year ended December 31, 2016,2021, the following long-term debt was retired and/or redeemed:
Company Type Interest Rate Maturity Amount
Exelon Corporate Long Term Software License Agreement 3.95% May 1, 2024 $8
Exelon Corporate Senior Notes 4.95% June 15, 2035 $1
Generation 
AVSR DOE Nonrecourse Debt (a)
 2.29% - 3.56% January 5, 2037 $22
Generation Kennett Square Capital Lease 7.83% September 20, 2020 $4
Generation 
Continental Wind Nonrecourse Debt (a)
 6.00% February 28, 2033 $29
Generation 
CEU Upstream Nonrecourse Debt (a)
 LIBOR + 2.25% January 14, 2019 $46
Generation 
ExGen Texas Power
Nonrecourse Debt
(a)(b)
 5.00% September 18, 2021 $7
Generation Sacramento Solar Nonrecourse Debt LIBOR + 2.25% December 31, 2030 $33
Generation 
Clean Horizons Nonrecourse Debt 
 LIBOR + 2.25% September 7, 2030 $32
Generation ExGen Renewables I, Nonrecourse Debt LIBOR + 4.25% February 6, 2021 $24
Generation PES - PGOV Notes Payable 6.70% - 7.46% 2017-2018 $1
Generation NUKEM 3.35% June 30, 2018 $12
Generation NUKEM 3.25% July 1, 2018 $10
Generation 
Renewable Power Generation Nonrecourse Debt (a)
 4.11% March 31, 2035 $9
Generation 
SolGen Nonrecourse Debt (a)
 3.93% September 30, 2036 $2
ComEd��First Mortgage Bonds, Series 104 5.95% August 15, 2016 $415
ComEd First Mortgage Bonds, Series 111 1.95% August 1, 2016 $250
PECO First and Refunding Mortgage Bonds 1.20% October 15, 2016 $300
BGE Rate Stabilization Bonds 5.72% April 1, 2016 $1
BGE Rate Stabilization Bonds 5.82% April 1, 2017 $38
BGE Notes 5.90% October 1, 2016 $300
BGE Rate Stabilization Bonds 5.82% April 1, 2017 $40
PHI Senior Unsecured Notes 5.90% December 12, 2016 $190
DPL First Mortgage Bonds 5.22% December 30, 2016 $100
ACE Transition Bonds 5.05% October 20, 2020 $12
ACE Transition Bonds 5.55% October 20, 2023 $34
ACE First Mortgage Bonds 7.68% August 23, 2016 $2
__________
(a)See Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for discussion of nonrecourse debt.
(b)As a result of the bankruptcy filing for EGTP on November 7, 2017, the nonrecourse debt was deconsolidated from Exelon's and Generation's consolidated financial statements. Refer to Note 4 — Mergers, Acquisitions and Dispositions for further discussion.

During the year ended December 31, 2015, the following long-term debt was retired and/or redeemed:
Company Type Interest Rate Maturity Amount
Exelon Corporate Senior Unsecured Notes 4.55% June 15, 2015 $550
Exelon Corporate Senior Notes 4.90% June 15, 2015 $800
Exelon Corporate Senior Unsecured Notes 3.95% June 15, 2025 $443
Exelon Corporate Senior Unsecured Notes 4.95% June 15, 2035 $167
Exelon Corporate Senior Unsecured Notes 5.10% June 15, 2045 $259
Exelon Corporate Long-Term Software License Agreement 3.95% May 1, 2024 $1
Generation Senior Unsecured Notes 4.55% June 15, 2015 $550
Generation 
CEU Upstream Nonrecourse Debt (a)
 LIBOR + 2.25% January 14, 2019 $9
Generation 
AVSR DOE Nonrecourse Debt (a)
 2.29%-3.56% January 5, 2037 $23
Generation Kennett Square Capital Lease 7.83% September 20, 2020 $3
Generation Continental Wind Nonrecourse Debt 6.00% February 28, 2033 $20
Generation 
ExGen Texas Power Nonrecourse Debt (a)(b)
 LIBOR + 4.75% September 8, 2021 $5
Generation ExGen Renewables I Nonrecourse Debt LIBOR + 4.25% February 6, 2021 $24
Generation Constellation Solar Horizons Nonrecourse Debt 2.56% September 7, 2030 $2
Generation Sacramento PV Energy Nonrecourse Debt 2.58% December 31, 2030 $2
Generation 
Energy Efficiency Project (b)
 3.55% November 15, 2016 $19
ComEd First Mortgage Bonds, Series 101 4.70% April 15, 2015 $260
BGE Rate Stabilization Bonds 5.72% April 1, 2016 $75
PHI Senior Unsecured Notes 2.70% October 1, 2015 $250
PHI (c)
 Energy Efficiency Project Financing 4.68% February 10, 2015 $7
PHI (c)
 Energy Efficiency Project Financing 8.87% June 1, 2021 $5
PHI (c)
 Energy Efficiency Project Financing 7.61% August 1, 2015 $1
PHI (c)
 PES - PGOV Notes Payable 6.70% 2017-2018 $1
Pepco Energy Efficiency Project Financing 3.12% February 20, 2015 $12
DPL Senior Unsecured Notes 5.00% June 1, 2015 $100
ACE Secured Medium-Term Notes Series C 7.68% August 24, 2015 $15
ACE Transition Bonds 5.05% October 20, 2020 $12
ACE Transition Bonds 5.55% October 20, 2023 $32
__________
(a)See Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for discussion of nonrecourse debt.
(b)As a result of the bankruptcy filing for EGTP on November 7, 2017, the nonrecourse debt was deconsolidated from Exelon's and Generation's consolidated financial statements. Refer to Note 4 — Mergers, Acquisitions and Dispositions for further discussion.
(c)Represents Pepco Energy Services energy efficiency project financing. As of the date of the merger, PES financing was included with Generation.


CompanyTypeInterest RateMaturityAmount
ExelonSenior Notes2.45%April 15, 2021$300 
ExelonLong-Term Software License Agreements3.95%May 1, 202424
ExelonLong-Term Software License Agreements3.62%December 1, 20251
ComEdFirst Mortgage Bonds3.40%September 1, 2021350
PECOFirst Mortgage Bonds1.70%September 15, 2021300
BGESenior Notes3.50%November 15, 2021300
ACEFirst Mortgage Bonds4.35%April 1, 2021200
ACETax-Exempt First Mortgage Bonds6.80%March 1, 202139
ACETransition Bonds5.55%October 20, 202121
From time to time and as market conditions warrant, the Registrants may engage in long-term debt retirements via tender offers, open market repurchases or other viable options to reduce debt on their respective balance sheets.
Dividends
Cash dividend payments and distributions for the year ended December 31, 2017, 2016 and 2015 by Registrant were as follows:
 2017 2016 2015
Exelon$1,236
 $1,166
 $1,105
Generation659
 922
 2,474
ComEd422
 369
 299
PECO288
 277
 279
BGE(a)
198
 187
 171
Pepco133
 136
 146
DPL112
 54
 92
ACE68
 63
 12
 Successor  Predecessor
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI$311
 $273
  $
 $275
__________
(a)Includes dividends paid on BGE's preference stock during 2016 and 2015.
Quarterly dividends declared by the Exelon Board of Directors during the year ended December 31, 20172022 and for the first quarter of 20182023 were as follows:
Period Declaration Date Shareholder of Record Date Dividend Payable Date Cash per Share
First Quarter 2017 January 31, 2017 February 15, 2017 March 10, 2017 $0.3275
Second Quarter 2017 April 25, 2017 May 15, 2017 June 9, 2017 $0.3275
Third Quarter 2017 July 25, 2017 August 15, 2017 September 8, 2017 $0.3275
Fourth Quarter 2017 September 25, 2017 November 15, 2017 December 8, 2017 $0.3275
First Quarter 2018(a)
 January 30, 2018 February 15, 2018 March 9, 2018 $0.3450
___________
(a)PeriodExelon's BoardDeclaration DateShareholder of Directors approved an updated dividend policy providing an increase of 5% each year for the period covering 2018 through 2020, beginning with the
Record Date
Dividend Payable Date
Cash per Share(a)
First Quarter 2022February 8, 2022February 25, 2022March 2018 dividend.10, 2022

Short-Term Borrowings
Short-term borrowings incurred (repaid) during 2017, 2016 and 2015 by Registrant were as follows:

2017
2016
2015
Exelon$(261) $(353) $80
Generation(620) 620
 
ComEd
 (294) (10)
BGE32
 (165) 90
Pepco3
 (41) (40)
DPL216
 (105) (1)
ACE108
 (5) (122)
 Successor  Predecessor
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI$328
 $(515)  $(121) $34

Retirement of Long-Term Debt to Financing Affiliates
On August 28, 2017, BGE redeemed all of the outstanding shares of BGE Capital Trust II 6.20% Preferred Securities. See Note 13 — Debt and Credit Agreements for further discussion.
Contributions from Parent/Member
Contributions from Parent/Member (Exelon) during 2017, 2016 and 2015 by Registrant were as follows:

2017 2016 2015
Generation$102
 $142
 $47
ComEd(a)(b)
672
 473
 209
PECO(b)
16
 18
 16
BGE(b)
184
 61
 7
Pepco(c)
161
 187
 112
DPL(c)

 152
 75
ACE(c)

 139
 95
 Successor  Predecessor
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI(b)
$758
 $1,251
  $
 $
__________
$0.3375 
(a)Second Quarter 2022Additional contributions from parent or external debt financing may be required as a result of increased capital investment in infrastructure improvements and modernization pursuant to EIMA, transmission upgrades and expansions and Exelon's agreement to indemnify ComEd for any unfavorable after-tax impacts associated with ComEd's LKE tax matter.
April 26, 2022May 13, 2022June 10, 2022$0.3375 
(b)Third Quarter 2022Contribution paid by Exelon.
July 26, 2022August 15, 2022September 9, 2022$0.3375 
(c)Fourth Quarter 2022Contribution paid by PHI.October 28, 2022November 15, 2022December 9, 2022$0.3375 
First Quarter 2023February 14, 2023February 27, 2023March 10, 2023$0.3600 

Pursuant to the orders approving the merger, Exelon made equity contributions___________
(a)Exelon's Board of $73 million, $46 million and $49 million to Pepco, DPL and ACE, respectively, in the second quarter of 2016 to fund the after-tax amount of the customer bill credit and the customer base rate credit.
Redemptions of Preference Stock. BGE had $190 million of cumulative preference stock that was redeemable at its option at any time after October 1, 2015Directors approved an updated dividend policy for the redemption price of $1002023. The 2023 quarterly dividend will be $0.36 per share, plus accrued and unpaid dividends. On July 3, 2016, BGE redeemed all 400,000 shares of its outstanding 7.125% Cumulative Preference Stock, 1993 Series and all 600,000 shares of its outstanding 6.990% Cumulative Preference Stock, 1995 Series for $100 million, plus accrued and unpaid dividends. On September 18, 2016, BGE redeemed the remaining 500,000 shares of its outstanding 6.970% Cumulative Preference Stock, 1993 Series and the remaining 400,000 shares of its outstanding 6.700% Cumulative Preference Stock, 1993 Series for $90 million, plus accrued and unpaid dividends. As of December 31, 2017, BGE no longer has any preferred stock outstanding. See Note 21 - Earnings Per Shareof the Combined Notes to Consolidated Financial Statements for further details.
Other
For the year ended December 31, 2017, other financing activities primarily consists of debt issuance costs. See Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements’ for additional information.share.
Credit Matters
Market Conditions and Cash Requirements
The Registrants fund liquidity needs for capital investment,expenditures, working capital, energy hedging, and other financial commitments through cash flows from continuing operations, public debt offerings, commercial paper markets, and large, diversified credit facilities. The credit facilities include $9.5$4.0 billion in aggregate total commitments of which $8.3$2.1 billion was available to support additional commercial paper as of December 31, 2017,2022, and of which no financial institution has more than 7%6% of the aggregate commitments for the Registrants. On February 1, 2022, Exelon Generation, ComEd, PECO, BGE, Pepco, DPLCorporate and ACE.the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information. The Registrants had access to the commercial paper marketmarkets and had availability under their revolving credit facilities during 20172022 to fund their short-term liquidity needs, when necessary. The Registrants routinely review the sufficiency of their liquidity position, including appropriate sizing of credit facility commitments, by performing various stress test scenarios, such as commodity price movements, increases in margin-related transactions, changes in hedging levels, and the impacts of hypothetical credit downgrades. The Registrants have continued to closely monitor events in the financial markets and the financial institutions associated with the credit facilities, including monitoring credit ratings and outlooks, credit default swap levels, capital raising, and merger activity. See PART I.I, ITEM 1A. RISK FACTORS for furtheradditional information regarding the effects of uncertainty in the capital and credit markets.
The Registrants believe their cash flow from operating activities, access to credit markets, and their credit facilities provide sufficient liquidity. If Generation lostliquidity to support the estimated future cash requirements discussed below.
83

On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering of 12.995 million shares of its investment gradecommon stock, no par value. The net proceeds were $563 million before expenses paid. Exelon used the proceeds, together with available cash balances, to repay $575 million in borrowings under a $1.15 billion term loan credit rating asfacility. See Note 19 — Shareholders' Equity and Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.
On August 4, 2022, Exelon executed an equity distribution agreement (“Equity Distribution Agreement”) with certain sales agents and forward sellers and certain forward purchasers establishing an ATM equity distribution program under which it may offer and sell shares of its common stock, having an aggregate gross sales price of up to $1.0 billion. Exelon has no obligation to offer or sell any shares of common stock under the Equity Distribution Agreement and may at any time suspend or terminate offers and sales under the Equity Distribution Agreement. As of December 31, 2017, it would have been required2022, Exelon has not issued any shares of common stock under the ATM program and has not entered into any forward sale agreements.
Pursuant to provide incremental collateralthe Separation Agreement between Exelon and Constellation Energy Corporation, Exelon made a cash payment of $1.8$1.75 billion to meet collateral obligations for derivatives, non-derivatives, normal purchases and normal sales contracts and applicable payables and receivables, netGeneration on January 31, 2022. See Note 2 — Discontinued Operations of the contractual right of offset under master netting agreements, which is well within its current available credit facility capacities of $4.7 billion.

Combined Notes to Consolidated Financial Statements for additional information on the separation.
The following table presents the incremental collateral that each Utility Registrant would have been required to provide in the event each Utility Registrant lost its investment grade credit rating at December 31, 20172022 and available credit facility capacity prior to any incremental collateral at December 31, 2017:2022:
PJM Credit Policy Collateral
Other Incremental Collateral Required(a)
Available Credit Facility Capacity Prior to Any Incremental Collateral
ComEd$31 $— $568 
PECO71 361 
BGE119 191 
Pepco— 
DPL15 185 
ACE— 300 
__________
(a)Represents incremental collateral related to natural gas procurement contracts.

Capital Expenditures
As of December 31, 2022, estimates of capital expenditures for plant additions and improvements are as follows:
(in millions)(a)
2023 Transmission2023 Distribution2023 GasTotal 2023
Beyond 2023(b)
ExelonN/AN/AN/A$7,175 $24,100 
ComEd475 2,075 N/A2,550 8,575 
PECO75 975 325 1,375 4,825 
BGE325 525 475 1,325 4,700 
PHI550 1,225 125 1,900 6,000 
Pepco250 650 N/A900 2,825 
DPL175 275 125 575 1,800 
ACE150 300 N/A425 1,400 
___________
(a)Numbers rounded to the nearest $25M and may not sum due to rounding.
(b)Includes estimated capital expenditures for the Utility Registrants from 2024 and 2026.
Projected capital expenditures and other investments are subject to periodic review and revision to reflect changes in economic conditions and other factors. Projected capital expenditures at the Utility Registrants are for continuing projects to maintain and improve operations, including enhancing reliability and adding capacity to the transmission and distribution systems. The Utility Registrants anticipate that they will fund their capital
84

 PJM Credit Policy Collateral 
Other Incremental Collateral Required(a)
 Available Credit Facility Capacity Prior to Any Incremental Collateral
ComEd$18
 $
 $998
PECO3
 34
 599
BGE3
 66
 600
Pepco4
 
 300
DPL1
 11
 300
ACE
 
 300
expenditures with a combination of internally generated funds and borrowings and additional capital contributions from parent.
Retirement Benefits
Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the Pension Protection Act of 2006 (the Act), management of the pension obligation, and regulatory implications. The Act requires the attainment of certain funding levels to avoid benefit restrictions (such as an inability to pay lump sums or to accrue benefits prospectively), and at-risk status (which triggers higher minimum contribution requirements and participant notification). The projected contributions below reflect a funding strategy to make annual contributions with the objective of achieving 100% funded status on an ABO basis over time. This funding strategy helps minimize volatility of future period required pension contributions. Exelon’s estimated annual qualified pension contributions will be $20 million in 2023. Unlike the qualified pension plans, Exelon’s non-qualified pension plans are not funded, given that they are not subject to statutory minimum contribution requirements.
While OPEB plans are also not subject to statutory minimum contribution requirements, Exelon does fund certain of its plans. For Exelon's funded OPEB plans, contributions generally equal accounting costs, however, Exelon’s management has historically considered several factors in determining the level of contributions to its OPEB plans, including liabilities management, levels of benefit claims paid, and regulatory implications (amounts deemed prudent to meet regulatory expectations and best assure continued rate recovery). The amounts below include benefit payments related to unfunded plans.
The following table provides all Registrants' planned contributions to the qualified pension plans, planned benefit payments to non-qualified pension plans, and planned contributions to OPEB plans in 2023:
Qualified Pension PlansNon-Qualified Pension PlansOPEB
Exelon$20 $48 $47 
ComEd20 19 
PECO— — 
BGE— 15 
PHI— 11 
Pepco— 11 
DPL— — — 
ACE— — — 
To the extent interest rates decline significantly or the pension and OPEB plans earn less than the expected asset returns, annual pension contribution requirements in future years could increase. Conversely, to the extent interest rates increase significantly or the pension and OPEB plans earn greater than the expected asset returns, annual pension and OPEB contribution requirements in future years could decrease. Additionally, expected contributions could change if Exelon changes its pension or OPEB funding strategy.
See Note 14 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information on pension and OPEB contributions.
Cash Requirements for Other Financial Commitments
The following tables summarize the Registrants' future estimated cash payments as of December 31, 2022 under existing financial commitments:
85

Exelon
2023Beyond 2023TotalTime Period
Long-term debt(a)
$1,788 $35,289 $37,077 2023 - 2053
Interest payments on long-term debt(b)
1,476 23,645 25,121 2023 - 2052
Operating leases(c)
52 327 379 2023 - 2106
Fuel purchase agreements(d)
321 1,076 1,397 2023 - 2038
Electric supply procurement4,041 2,407 6,448 2023 - 2026
Long-term renewable energy and REC commitments348 1,483 1,831 2023 - 2038
Other purchase obligations(c)(e)
4,816 3,070 7,886 2023 - 2032
DC PLUG obligation34 37 2023 - 2024
ZEC commitments99 676 775 2023 - 2027
Pension contributions(f)
20 704 724 2023 - 2028
Total cash requirements$12,995 $68,680 $81,675 
__________
(a)Includes amounts from ComEd and PECO financing trusts.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022. Includes estimated interest payments due to ComEd and PECO financing trusts.
(c)These amounts exclude payments and obligations related to the Baltimore City Conduit system lease. In January 2023, BGE signed an agreement to extend its use of the Baltimore City Conduit system through December 2026. Over the term of the new agreement, BGE has committed to pay the City of Baltimore approximately $19 million and also incur $120 million of capital improvements to the Conduit system. However, the agreement is still pending approval by Baltimore City which is expected to occur in the first quarter of 2023. Once approved, the agreement would be effective immediately.
(d)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(e)Represents the future estimated value at December 31, 2022 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants or subsidiary and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(f)These amounts represent Exelon’s expected contributions to its qualified pension plans. Qualified pension contributions for years after 2028 are not included.
86

ComEd
2023Beyond 2023TotalTime Period
Long-term debt(a)
$— $10,835 $10,835 2023 - 2053
Interest payments on long-term debt(b)
421 7,640 8,061 2023 - 2052
Operating leases— 2023 - 2026
Electric supply procurement955 450 1,405 2023 - 2025
Long-term renewable energy and REC commitments318 1,299 1,617 2023 - 2038
Other purchase obligations(c)
1,124 488 1,612 2023 - 2032
ZEC commitments99 676 775 2023 - 2027
Total cash requirements$2,919 $21,388 $24,307 
__________
(a)Includes amounts from ComEd financing trust.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Includes estimated interest payments due to the ComEd financing trust.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between ComEd and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

PECO
2023Beyond 2023TotalTime Period
Long-term debt(a)
$50 $4,809 $4,859 2023 - 2052
Interest payments on long-term debt(b)
194 4,053 4,247 2023 - 2052
Operating leases— 2023 - 2034
Fuel purchase agreements(c)
172 307 479 2023 - 2029
Electric supply procurement767 313 1,080 2023 - 2024
Other purchase obligations(d)
835 593 1,428 2023 - 2030
Total cash requirements$2,018 $10,076 $12,094 
__________
(a)Includes amounts from PECO financing trusts.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Includes estimated interest payments due to the PECO financing trusts.
(c)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(d)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between PECO and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
87

BGE
2023Beyond 2023TotalTime Period
Long-term debt$300 $3,950 $4,250 2023 - 2052
Interest payments on long-term debt(a)
151 2,836 2,987 2023 - 2052
Operating leases(b)
18 19 2023 - 2106
Fuel purchase agreements(c)
116 573 689 2023 - 2038
Electric supply procurement1,003 755 1,758 2023 - 2025
Other purchase obligations(b)(d)
966 299 1,265 2023 - 2028
Total cash requirements$2,537 $8,431 $10,968 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)These amounts exclude payments and obligations related to the Baltimore City Conduit system lease. In January 2023, BGE signed an agreement to extend its use of the Baltimore City Conduit system through December 2026. Over the term of the new agreement, BGE has committed to pay the City of Baltimore approximately $19 million and also incur $120 million of capital improvements to the Conduit system. However, the agreement is still pending approval by Baltimore City which is expected to occur in the first quarter of 2023. Once approved, the agreement would be effective immediately.
(c)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(d)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between BGE and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

PHI
2023Beyond 2023TotalTime Period
Long-term debt$577 $7,042 $7,619 2023 - 2052
Interest payments on long-term debt(a)
314 4,438 4,752 2023 - 2052
Finance leases14 68 82 2023 - 2030
Operating leases37 195 232 2023 - 2032
Fuel purchase agreements(b)
33 196 229 2023 - 2028
Electric supply procurement1,316 889 2,205 2023 - 2026
Long-term renewable energy and REC commitments30 184 214 2023 - 2033
Other purchase obligations(c)
1,335 710 2,045 2023 - 2031
DC PLUG obligation34 37 2023 - 2024
Total cash requirements$3,690 $13,725 $17,415 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022.
(b)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between Pepco, DPL, ACE, and PHISCO and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
88

Pepco
2023Beyond 2023TotalTime Period
Long-term debt$— $3,773 $3,773 2023 - 2052
Interest payments on long-term debt(a)
170 2,659 2,829 2023 - 2052
Finance leases23 28 2023 - 2030
Operating leases41 48 2023 - 2032
Electric supply procurement597 453 1,050 2023 - 2026
Other purchase obligations(b)
696 334 1,030 2023 - 2027
DC PLUG obligation34 37 2023 - 2024
Total cash requirements$1,509 $7,286 $8,795 
__________ 
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between Pepco and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

DPL
2023Beyond 2023TotalTime Period
Long-term debt$578 $1,337 $1,915 2023 - 2052
Interest payments on long-term debt(a)
68 1,061 1,129 2023 - 2052
Finance leases28 34 2023 - 2030
Operating leases10 52 62 2023 - 2032
Fuel purchase agreements(b)
33 196 229 2023 - 2028
Electric supply procurement358 220 578 2023 - 2025
Long-term renewable energy and REC commitments30 184 214 2023 - 2033
Other purchase obligations(c)
270 158 428 2023 - 2031
Total cash requirements$1,353 $3,236 $4,589 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022.
(b)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between DPL and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
89

ACE
2023Beyond 2023TotalTime Period
Long-term debt$— $1,747 $1,747 2023 - 2052
Interest payments on long-term debt(a)
62 598 660 2023 - 2052
Finance leases17 20 2023 - 2030
Operating leases11 2023 - 2028
Electric supply procurement361 216 577 2023 - 2025
Other purchase obligations(b)
323 168 491 2023 - 2027
Total cash requirements$753 $2,753 $3,506 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between ACE and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
See Note 18 — Commitments and Contingencies and Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information of the Registrants’ other commitments potentially triggered by future events. Additionally, see below for where to find additional information regarding the financial commitments in the tables above in the Combined Notes to the Consolidated Financial Statements:
ItemLocation within Notes to the Consolidated Financial Statements
Long-term debtNote 16 — Debt and Credit Agreements
Interest payments on long-term debtNote 16 — Debt and Credit Agreements
Finance leasesNote 10 — Leases
Operating leasesNote 10 — Leases
(a)REC commitmentsRepresents incremental collateral related to natural gas procurement contracts.Note 3 — Regulatory Matters
ZEC commitmentsNote 3 — Regulatory Matters
DC PLUG obligationNote 3 — Regulatory Matters
Pension contributionsNote 14 — Retirement Benefits
Exelon Credit Facilities
Exelon Corporate, ComEd, and BGE meet their short-term liquidity requirements primarily through the issuance of commercial paper. Generation and PECO meet theirmeets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the intercompany money pool. PHI meets its short-term liquidity requirements primarily through the issuance of short-term notes and the Exelon intercompany money pool. Pepco, DPL, and ACE meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the PHI intercompany money pool. PHI Corporate meets its short-term notes.liquidity requirements primarily through the issuance of short-term notes and the Exelon intercompany money pool. The Registrants may use their respective credit facilities for general corporate purposes, including meeting short-term funding requirements and the issuance of letters of credit.
See Note 1316 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for discussion ofadditional information on the Registrants’ credit facilities and short term borrowing activity.
Other Credit Matters
90

Capital Structure. At
As of December 31, 2017,2022, the capital structures of the Registrants consisted of the following:

Exelon
Generation
ComEd
PECO
BGE PHI Pepco DPL ACE
Exelon(a)
ComEdPECOBGEPHIPepcoDPLACE
Long-term debt51% 32% 44% 44% 45% 39% 50% 46% 49%Long-term debt57 %43 %44 %44 %41 %48 %48 %50 %
Long-term debt to affiliates(a)
1% 4% 1% 3% % % % % %
Long-term debt to affiliates(b)
Long-term debt to affiliates(b)
%%%— %— %— %— %— %
Common equity47% % 55% 53% 54% 
 49% 46% 46%Common equity38 %54 %52 %52 %— %48 %49 %50 %
Member’s equity% 64% % % % 59% 
 
 
Member’s equity— %— %— %— %57 %— %— %— %
Commercial paper and notes payable1% % 
 % 1% 2% 1% 8% 5%Commercial paper and notes payable%%%%%%%— %
__________ 
(a)Includes approximately $389 million, $205 million and $184 million owed to unconsolidated affiliates of Exelon, ComEd, and PECO respectively. These special purpose entities were created for the sole purposes of issuing mandatorily redeemable trust preferred securities of ComEd and PECO. See Note 2 — Variable Interest Entities of the Combined Notes to Consolidated Financial Statements for additional information regarding the authoritative guidance for VIEs.

(a)As of December 31, 2021, Exelon's Long-term debt and Common equity capital structure percentages were 50% and 45%, respectively. The change in capital structure percentages above is a result of a decrease in common equity due to the separation of Constellation in addition to an increase in long-term debt issuances. See Note 2 — Discontinued Operations for additional information regarding the separation.
(b)Includes approximately $390 million, $205 million, and $184 million owed to unconsolidated affiliates of Exelon, ComEd, and PECO respectively. These special purpose entities were created for the sole purposes of issuing mandatory redeemable trust preferred securities of ComEd and PECO.
Security Ratings
The Registrants’ access to the capital markets, including the commercial paper market, and their respective financing costs in those markets, may depend on the securities ratings of the entity that is accessing the capital markets.
The Registrants’ borrowings are not subject to default or prepayment as a result of a downgrading of securities, although such a downgrading of a Registrant’s securities could increase fees and interest charges under that Registrant’s credit agreements.
As part of the normal course of business, the Registrants enter into contracts that contain express provisions or otherwise permit the Registrants and their counterparties to demand adequate assurance of future performance when there are reasonable grounds for doing so. In accordance with the contracts and applicable contracts law, if the Registrants are downgraded by a credit rating agency, it is possible that a counterparty would attempt to rely on such a downgrade as a basis for making a demand for adequate assurance of future performance, which could include the posting of additional collateral. See Note 1215 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information on collateral provisions.
The credit ratings for ComEd, PECO, BGE, and DPL did not change for the year ended December 31, 2022. On January 14, 2022, Fitch lowered Exelon Corporate's long-term and senior unsecured ratings from BBB+ to BBB and affirmed the short-term rating of F2. In addition, Fitch upgraded Pepco, ACE, and PHI's long-term rating from BBB to BBB+ and upgraded Pepco and ACE's senior secured rating from A- to A.
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Intercompany Money PoolLiquidity and Capital Resources
To provideAll results included throughout the liquidity and capital resources section are presented on a GAAP basis.
The Registrants’ operating and capital expenditures requirements are provided by internally generated cash flows from operations, as well as funds from external sources in the capital markets and through bank borrowings. The Registrants’ businesses are capital intensive and require considerable capital resources. Each of the Registrants annually evaluates its financing plan, dividend practices, and credit line sizing, focusing on maintaining its investment grade ratings while meeting its cash needs to fund capital requirements, including construction expenditures, retire debt, pay dividends, and fund pension and OPEB obligations. The Registrants spend a significant amount of cash on capital improvements and construction projects that have a long-term return on investment. Additionally, the Utility Registrants operate in rate-regulated environments in which the amount of new investment recovery may be delayed or limited and where such recovery takes place over an additional short-term borrowing optionextended period of time. Each Registrant’s access to external financing on reasonable terms depends on its credit ratings and current overall capital market business conditions, including that will generally be more favorableof the utility industry in general. If these conditions deteriorate to the borrowing participants thanextent that the costRegistrants no longer have access to the capital markets at reasonable terms, the Registrants have access to credit facilities with aggregate bank commitments of external financing, both Exelon and PHI operate an intercompany money pool. Maximum amounts contributed to and borrowed from the money pool by participant and the net contribution or borrowing$4.0 billion, as of December 31, 2017, are presented in2022. The Registrants utilize their credit facilities to support their commercial paper programs, provide for other short-term borrowings, and to issue letters of credit. See the following tables:
Exelon Intercompany Money PoolFor the Year Ended December 31, 2017 As of
December 31, 2017
Contributed (borrowed)
Maximum
Contributed
 
Maximum
Borrowed
 Contributed (Borrowed)
Exelon Corporate$579
 $
 $217
Generation20
 (589) (54)
PECO336
 (22) 
BSC
 (423) (217)
PHI Corporate
 (47) 
PCI55
 
 54
PHI Intercompany Money PoolFor the Year Ended December 31, 2017 As of
December 31, 2017
Contributed (borrowed)
Maximum
Contributed
 
Maximum
Borrowed
 Contributed (Borrowed)
PHI Corporate$9
 $(2) $1
Pepco
 
 
DPL
 
 
ACE
 
 
PHISCO3
 (9) 
Investments in Nuclear Decommissioning Trust Funds. Exelon, Generation“Credit Matters and CENG maintain trust funds, as required by the NRC, to fund certain costs of decommissioning nuclear plants.Cash Requirements” section below for additional information. The mix of securities in the trust funds is designed to provide returnsRegistrants expect cash flows to be usedsufficient to fund decommissioningmeet operating expenses, financing costs, and to offset inflationary increases in decommissioning costs. Generation actively monitors the investment performance of the trust funds and periodically reviews asset allocations in accordance with

Generation’s NDT fund investment policy. Generation’s and CENG's investment policies establish limits on the concentration of holdings in any one company and also in any one industry.capital expenditure requirements. See Note 1516Asset Retirement ObligationsDebt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for furtheradditional information regardingon the trust funds,Registrants’ debt and credit agreements.
Cash flows related to Generation have not been presented as discontinued operations and are included in the NRC’s minimum fundingConsolidated Statements of Cash Flows for all periods presented. The Exelon Consolidated Statement of Cash Flows for the year ended December 31, 2022 includes one month of cash flows from Generation. The Exelon Consolidated Statement of Cash Flows for the year ended December 31, 2021 includes twelve months of cash flows from Generation. This is the primary reason for the changes in cash flows as shown in the tables unless otherwise noted below.
Cash Flows from Operating Activities
The Utility Registrants' cash flows from operating activities primarily result from the transmission and distribution of electricity and, in the case of PECO, BGE, and DPL, gas distribution services. The Utility Registrants' distribution services are provided to an established and diverse base of retail customers. The Utility Registrants' future cash flows may be affected by the economy, weather conditions, future legislative initiatives, future regulatory proceedings with respect to their rates or operations, and their ability to achieve operating cost reductions. Additionally, ComEd is required to purchase CMCs from participating nuclear-powered generating facilities for a five-year period, and all of its costs of doing so will be recovered through a new rider. The price to be paid for each CMC is established through a competitive bidding process. ComEd will provide net payments to, or collect net payments from, customers for the difference between customer credits issued and the credit to be received from the participating nuclear-powered generating facilities. ComEd’s cash flows are affected by the establishment of CMC prices and the timing of recovering costs through the CMC regulatory asset.
See Note 3 — Regulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information on regulatory and legal proceedings and proposed legislation.
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The following table provides a summary of the change in cash flows from operating activities for the years ended December 31, 2022 and 2021 by Registrant:
Increase (decrease) in cash flows from operating activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Net income$342 $175 $72 $(28)$47 $$41 $
Adjustments to reconcile net income to cash:
Non-cash operating activities(2,382)(176)124 173 259 93 25 141 
Option premiums paid, net299 — — — — — — — 
Collateral received (posted), net1,322 51 — 16 99 22 35 42 
Income taxes(331)— (25)(37)(18)(30)(13)11 
Pension and non-pension postretirement benefit contributions49 12 — 13 (30)— — (4)
Regulatory assets and liabilities, net(692)(645)(24)(8)(37)12 (43)
Changes in working capital and other noncurrent assets and liabilities3,251 185 (79)(98)(227)(97)(64)(60)
Increase (decrease) in cash flows from operating activities$1,858 $(398)$68 $31 $93 $$33 $89 
Changes in the Registrants' cash flows from operations were generally consistent with changes in each Registrant’s respective results of operations, as adjusted by changes in working capital in the normal course of business, except as discussed below. See above for additional information related to cash flows from Generation. Significant operating cash flow impacts for the Registrants and Generation for 2022 and 2021 were as follows:
See Note 22 —Supplemental Financial Information of the Combined Notes to Consolidated Financial Statements and the Registrants’ Consolidated Statements of Cash Flows for additional information on non-cash operating activities.
Changes in collateral depended upon whether Generation was in a net mark-to-market liability or asset position, and collateral may have been required to be posted with or collected from its counterparties. In addition, the collateral posting and collection requirements differed depending on whether the transactions were on an exchange or in the over-the-counter markets. Changes in collateral for the Utility Registrants are dependent upon the credit exposure of procurement contracts that may require suppliers to post collateral. The amount of cash collateral received from external counterparties increased due to rising energy prices. See Note 15 — Derivative Financial Instruments for additional information.
See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements and related liquidity ramifications.the Registrants' Consolidated Statements of Cash Flows for additional information on income taxes.
Shelf Registration Statements. Exelon, Generation,Changes in regulatory assets and liabilities, net, are due to the timing of cash payments for costs recoverable, or cash receipts for costs recovered, under our regulatory mechanisms differs from the recovery period of those costs. Included within the changes is energy efficiency spend for ComEd PECO,of $394 million and $343 million for the years ended December 31, 2022 and 2021, respectively. Also included within the changes is energy efficiency and demand response programs spend for BGE, Pepco, DPL, and ACE haveof $113 million, $71 million, $28 million, and $11 million for the year ended December 31, 2022, respectively, and $107 million, $72 million, $29 million, and $4 million for the year ended December 31, 2021, respectively. PECO had no energy efficiency and demand response programs spend recorded to a currently effective combined shelf registration statement unlimited in amount, filed withregulatory asset for the SEC, that will expire in August 2019. The ability of each Registrant to sell securities off the shelf registration statement or to access the private placement markets will depend on a number of factors at the timeyears ended December 31, 2022 and 2021. See Note 3 — Regulatory Matters of the proposed sale, includingCombined Notes to Consolidated Financial Statements for additional information.
Changes in working capital and other required regulatory approvals,noncurrent assets and liabilities for the Utility Registrants and Exelon Corporate total $(304) million and for Generation total $3,555 million. The change for Generation primarily relates to the revolving accounts receivable financing arrangement. See the Collection of DPP discussion below for additional information. The change in working capital and other noncurrent assets and liabilities for Exelon Corporate and the Utility Registrants is dependent upon the normal course of operations for all Registrants. For ComEd, it is also
78

dependent upon whether the participating nuclear-powered generating facilities owe money to ComEd as applicable, the current financial conditiona result of the Registrant, its securities ratingsestablished pricing for CMCs. In 2022, the established pricing resulted in a receivable from nuclear-powered generating facilities, which is reported within the cash flows from operations as a change in accounts receivable. In future periods the established pricing could result in ComEd owing payments to nuclear-powered generating facilities, which would be reported within cash flows from operations as a change in accounts payable and market conditions.accrued expenses.
Regulatory Authorizations. ComEd, PECO, BGE, Pepco, DPLCash Flows from Investing Activities
The following table provides a summary of the change in cash flows from investing activities for the years ended December 31, 2022 and ACE are required to obtain short-term2021 by Registrant:
Increase (decrease) in cash flows from investing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Capital expenditures$834 $(119)$(109)$(36)$11 $(31)$(1)$47 
Investment in NDT fund sales, net113 — — — — — — — 
Collection of DPP(3,733)— — — — — — — 
Proceeds from sales of assets and businesses(861)— — — — — — — 
Other investing activities(26)(1)(7)(1)— 
(Decrease) increase in cash flows from investing activities$(3,673)$(117)$(110)$(43)$15 $(27)$(2)$47 
Significant investing cash flow impacts for the Registrants for 2022 and long-term financing authority from Federal and State Commissions2021 were as follows:
Variances in capital expenditures are primarily due to the timing of cash expenditures for capital projects. See the "Credit Matters and Cash Requirements" section below for additional information on projected capital expenditure spending for the Utility Registrants. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for capital expenditures related to Generation prior to the separation.
Collection of DPP relates to Generation's revolving accounts receivable financing agreement which Generation entered into in April 2020. Generation received $400 million of additional funding related to the DPP in February and March of 2021.
Proceeds from sales of assets and businesses decreased primarily due to the sale of a significant portion of Generation's solar business and a biomass facility in 2021.
Cash Flows from Financing Activities
The following table provides a summary of the change in cash flows from financing activities for the years ended December 31, 2022 and 2021 by Registrant:
(Decrease) increase in cash flows from financing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Changes in short-term borrowings, net$(513)$900 $239 $148 $(154)$(16)$(37)$(101)
Long-term debt, net2,395 (50)(25)(50)50 40 — 10 
Changes in intercompany money pool— — 40 — 51 — — — 
Issuance of common stock563 — — — — — — — 
Dividends paid on common stock163 (71)(60)(8)— (195)143 
Acquisition of noncontrolling interest885 — — — — — — — 
Distributions to member— — — — (47)— — — 
Contributions from parent/member— (121)(140)29 104 221 27 (144)
Transfer of cash, restricted cash, and cash equivalents to Constellation(2,594)— — — — — — — 
Other financing activities(66)(6)(5)(5)(4)— — 
Increase (decrease) in cash flows from financing activities$833 $663 $48 $114 $(1)$46 $(6)$(92)
79

  
Short-term Financing Authority(a)
 
Long-term Financing Authority(a)
Commission Expiration Date AmountCommission 
Expiration Date (c)
 Amount
ComEd(b)
 FERC December 31, 2019 $2,500
 ICC 2019 $1,383
PECO FERC December 31, 2019 1,500
 PAPUC December 31, 2018 1,275
BGE FERC December 31, 2019 700
 MDPSC N/A 700
Pepco FERC December 31, 2019 500
 MDPSC September 25, 2017 
DCPSC December 31, 2020 600
DPL FERC December 31, 2019 500
 MDPSC December 31, 2017 
 DPSCDecember 31, 2020350
ACE NJBPU December 31, 2019 350
 NJBPU December 31, 2019 350
Significant financing cash flow impacts for the Registrants for 2022 and 2021 were as follows:
__________Changes in short-term borrowings, net, are driven by repayments on and issuances of notes due in less than 365 days. Refer to Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on short-term borrowings for the Registrants. These changes also included repayments of $552 million in commercial paper and term loans by Generation prior to the separation.
(a)Generation currently has blanket financing authority it received from FERC in connection with its market-based rate authority.
(b)ComEd had $1,140 million available in long-term debt refinancing authority and $243 million available in new money long term debt financing authority from the ICC as of December 31, 2017 and has an expiration date of June 1, 2019 and March 1, 2019, respectively.
(c)
Pepco and DPL are currently in the process of renewing their long-term financing authority with the MDPSC.
Long-term debt, net, varies due to debt issuances and redemptions each year. Refer to the debt issuances and redemptions tables below for additional information for the Registrants.
Changes inintercompany money pool are driven by short-term borrowing needs. Refer below for more information regarding the intercompany money pool.
Issuance of common stock relates to the August 2022 underwritten public offering of Exelon common stock. See Note 19 — Shareholders' Equity of the Combined Notes to Consolidated Financial Statements for additional information.
Exelon’s ability to pay dividends on its common stock depends on the receipt of dividends paid by its operating subsidiaries. The payments of dividends to Exelon by its subsidiaries in turn depend on their results of operations and cash flows and other items affecting retained earnings. The Federal Power Act declares it to be unlawful for any officer or director of any public utility “to participate in the making or paying of any dividends of such public utility from any funds properly included in capital account.” In addition, under Illinois law, ComEd may not pay any dividend on its stock, unless, among other things, its earnings and earned surplus are sufficient to declare and pay a dividend after provision is made for reasonable and proper reserves, or unless ComEd has specific authorization from the ICC. BGE is subject to certain dividend restrictions established by the MDPSC. First, BGE was prohibited from paying a dividend on its common shares through the end of 2014. Second, BGE is prohibited from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. Finally, BGE must notify the MDPSC that it intends to declare a dividend on its common shares at least 30 days before such a dividend is paid. Pepco, DPL and ACE are subject to certain dividend restrictions established by settlements approved in NJ, DE, MD and the DC. Pepco, DPL and ACE are prohibited from paying a dividend on their common shares if (a) after the dividend payment, Pepco’s, DPL’s or ACE’s equity ratio would be below 48% as equity levels are calculated under the ratemaking precedents of the Commissions

and the Board or (b) Pepco’s, DPL’s or ACE’s senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. At December 31, 2017, Exelon had retained earnings of $13,503 million, including Generation’s undistributed earnings of $4,310 million, ComEd’s retained earnings of $1,132 million consisting of retained earnings appropriated for future dividends of $2,771 million partially offset by $1,639 million of unappropriated retained deficit, PECO’s retained earnings of $1,087 million and BGE’s retained earnings $1,536 million. At December 31, 2017, Pepco had retained earnings of $1,063 million, DPL had retained earnings of $571 million and ACE had retained earnings of $131 million. See Note 2318 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information regarding fund on dividend restrictions. See below for quarterly dividends declared.
Acquisition of noncontrolling interest relates to Generation's acquisition of CENG noncontrolling interest in 2021.
Refer to Note 2 — Discontinued Operations for the transfer restrictions.of cash, restricted cash, and cash equivalents to Constellation related to the separation.
Contractual Obligations and Off-Balance Sheet Arrangements
The following tables summarizeOther financing activities primarily consists of debt issuance costs. See debt issuances table below for additional information on the Registrants’ future estimated cash payments asdebt issuances.
80

Debt Issuances and Contingencies of the Combined Notes to Consolidated Financial Statements for information regarding the Registrants’ commercial and other commitments, representing commitments potentially triggered by future events.Redemptions
Exelon
   Payment due within  
 Total 2018
2019 -
2020

2021 -
2022

Due 2023
and beyond
Long-term debt(a)
$33,994
 $2,057
 $4,459
 $4,574
 $22,904
Interest payments on long-term debt(b)
15,999
 1,346
 2,579
 2,231
 9,843
Capital leases53
 18
 25
 2
 8
Operating leases(c)
1,512
 188
 276
 261
 787
Purchase power obligations(d)
1,153
 358
 498
 103
 194
Fuel purchase agreements(e)
7,270
 1,229
 2,241
 1,385
 2,415
Electric supply procurement(e)
3,417
 2,213
 1,204
 
 
AEC purchase commitments(e)
3
 1
 2
 
 
Curtailment services commitments(e)
119
 52
 54
 13
 
Long-term renewable energy and REC commitments(f)
1,666
 111
 224
 235
 1,096
Other purchase obligations(g)
7,765
 4,844
 1,585
 561
 775
DC PLUG obligation(h)
188
 28
 60
 60
 40
Construction commitments(i)
57
 56
 1
 
 
PJM regional transmission expansion commitments(j)
569
 179
 270
 120
 
SNF obligation(k)
1,147
 
 
 
 1,147
Pension contributions(l)
1,393
 301
 493
 386
 213
Total contractual obligations$76,305
 $12,981

$13,971

$9,931

$39,422
__________
(a)Includes $390 million due after 2023 to ComEd and PECO financing trusts.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2017. Includes estimated interest payments due to ComEd, PECO, BGE, PHI, Pepco, DPL and ACE financing trusts.

(c)Excludes Generation's contingent operating lease payments associated with contracted generation agreements. These amounts are included within purchase power obligations. Includes estimated cash payments for service fees related to PECO’s meter reading operating lease.
(d)Purchase power obligations include contingent operating lease payments associated with contracted generation agreements. Amounts presented represent Generation’s expected payments under these arrangements at December 31, 2017, including those related to CENG. Expected payments include certain fixed capacity charges which may be reduced based on plant availability. Expected payments exclude renewable PPA contracts that are contingent in nature. Contained within Purchase power obligations are Net Capacity Purchases of $106 million, $99 million, $40 million, $31 million, $19 million and $171 million for 2018, 2019, 2020, 2021, 2022 and thereafter, respectively.
(e)Represents commitments to purchase nuclear fuel, natural gas and related transportation, storage capacity and services, procure electric renewable energy and RECs, procure electric supply, and purchase AECs and curtailment services.
(f)Primarily related to ComEd 20-year contracts for renewable energy and RECs beginning in June 2012. ComEd is permitted to recover its renewable energy and REC costs from retail customers with no mark-up. The commitments represent the earliest and maximum settlements with suppliers for renewable energy and RECs under the existing contract terms. See Note 3—Regulatory Matters of Combined Notes to Consolidated Financial Statements for additional information.
(g)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(h)Related to DC PLUG project costs for assets funded by the District of Columbia for which the District of Columbia has assessed a charge on Pepco. Pepco will recover this charge from customers through a volumetric distribution rider. See Note 3 — Regulatory Matters of Combined Notes to Consolidated Financial Statements for additional information.
(i)Represents commitments for Generation's ongoing investments in new natural gas and biomass generation construction.
(j)Under their operating agreements with PJM, ComEd, PECO, BGE, Pepco, DPL and ACE are committed to the construction of transmission facilities to maintain system reliability. These amounts represent ComEd, PECO, BGE, Pepco, DPL and ACE’s expected portion of the costs to pay for the completion of the required construction projects. See Note 3 — Regulatory Matters of Combined Notes to Consolidated Financial Statements for additional information.
(k)See Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for further information regarding SNF obligations.
(l)These amounts represent Exelon’s expected contributions to its qualified pension plans. The projected contributions reflect a funding strategy of contributing the greater of $300 million (which has been updated for the inclusion of PHI) until the qualified plans are fully funded on an accumulated benefit obligation basis, and the minimum amounts under ERISA to avoid benefit restrictions and at-risk status thereafter. The remaining qualified pension plans’ contributions are generally based on the estimated minimum pension contributions required under ERISA and the Pension Protection Act of 2006, as well as contributions necessary to avoid benefit restrictions and at-risk status. These amounts represent estimates that are based on assumptions that are subject to change. Qualified pension contributions for years after 2023 are not included. See Note 16 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for further information regarding estimated future pension benefit payments.
Generation 
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
Long-term debt$8,937
 $341
 $2,747
 $1,023
 $4,826
Interest payments on long-term debt(a)
4,808
 391
 705
 530
 3,182
Capital leases18
 5
 11
 2
 
Operating leases(b)
817
 74
 76
 94
 573
Purchase power obligations(c)
1,153
 358
 498
 103
 194
Fuel purchase agreements(d)
6,147
 1,000
 1,909
 1,184
 2,054
Other purchase obligations(e)
1,456
 398
 249
 181
 628
Construction commitments(f)
57
 56
 1
 
 
SNF obligation(g)
1,147
 
 
 
 1,147
Total contractual obligations$24,540
 $2,623

$6,196

$3,117

$12,604
__________ 
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2017.
(b)Excludes Generation's contingent operating lease payments associated with contracted generation agreements. These amounts are included within purchase power obligations.
(c)Purchase power obligations include contingent operating lease payments associated with contracted generation agreements. Amounts presented represent Generation’s expected payments under these arrangements at December 31, 2017. Expected

payments include certain fixed capacity charges which may be reduced based on plant availability. Expected payments exclude renewable PPA contracts that are contingent in nature. Contained within Purchase power obligations are Net Capacity Purchases of $106 million, $99 million, $40 million, $31 million, $19 million and $171 million for 2018, 2019, 2020, 2021, 2022 and thereafter, respectively.
(d)Represents commitments to purchase fuel supplies for nuclear and fossil generation, including those related to CENG.
(e)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(f)Represents commitments for Generation's ongoing investments in new natural gas generation construction.  As of December 31, 2017, the commitments relate to the construction of a new dual fuel, natural peaking facility in Massachusetts.  Achievement of commercial operation related to this project is expected in 2018.
(g)See Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for further information regarding SNF obligations.
ComEd
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
Long-term debt(a)
$7,874
 $840
 $800
 $350
 $5,884
Interest payments on long-term debt(b)
4,937
 269
 517
 469
 3,682
Capital leases8
 
 
 
 8
Operating leases(c)
23
 7
 10
 6
 
Electric supply procurement741
 476
 265
 
 
Long-term renewable energy and REC commitments(d)
1,321
 82
 166
 177
 896
Other purchase obligations(e)
1,035
 927
 82
 16
 10
PJM regional transmission expansion commitments(f)
164
 36
 104
 24
 
Total contractual obligations$16,103
 $2,637

$1,944

$1,042

$10,480
__________ 
(a)Includes $206 million due after 2023 to a ComEd financing trust.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2017. Includes estimated interest payments due to the ComEd financing trust.
(c)Amounts related to certain real estate leases and railroad licenses effectively have indefinite payment periods. As a result, ComEd, has excluded these payments from the remaining years as such amounts would not be meaningful. ComEd’s average annual obligation for these arrangements, included in each of the years 2018-2022, was $2 million.
(d)Primarily related to ComEd 20-year contracts for renewable energy and RECs beginning in June 2012. ComEd is permitted to recover its renewable energy and REC costs from retail customers with no mark-up. The commitments represent the maximum and earliest settlements with suppliers for renewable energy and RECs under the existing contract terms. See Note 3—Regulatory Matters of Combined Notes to Consolidated Financial Statements for additional information.
(e)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(f)Under its operating agreement with PJM, ComEd is committed to the construction of transmission facilities to maintain system reliability. These amounts represent ComEd’s expected portion of the costs to pay for the completion of the required construction projects. See Note 3 — Regulatory Matters of Combined Notes to Consolidated Financial Statements for additional information.

In January 2018, ComEd entered into 10-year ZEC procurement contracts with Generation. The following table summarizes ComEd’s future estimated cash payments under the executed contract. See Note 3 — Regulatory Matters and Note 28 — Subsequent Events of the Combined Notes to Consolidated Financial Statements for more information.
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
ZEC commitments(a)
$1,589
 $271
 $327
 $314
 $677
__________ 
(a)Annual ZEC commitment amounts will be published by the IPA each May prior to the start of the subsequent planning year. Amounts presented in the table represent management's estimate of ComEd's obligation based on forward energy prices and load forecasts. ComEd is permitted to recover its ZEC costs from retail customers with no mark-up.

PECO
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
Long-term debt(a)
$3,109
 $500
 $
 $650
 $1,959
Interest payments on long-term debt(b)
1,916
 105
 210
 202
 1,399
Operating leases(c)
25
 5
 10
 10
 
Fuel purchase agreements(d)
339
 113
 151
 35
 40
Electric supply procurement(d)
526
 420
 106
 
 
AEC purchase commitments(d)
6
 2
 4
 
 
Other purchase obligations(e)
465
 257
 157
 46
 5
PJM regional transmission expansion commitments(f)
53
 16
 29
 8
 
Total contractual obligations$6,439
 $1,418

$667

$951

$3,403
__________ 
(a)Includes $184 million due after 2023 to PECO financing trusts.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances.
(c)Includes estimated cash payments for service fees related to PECO’s meter reading operating lease. Amounts related to certain real estate leases and railroad licenses effectively have indefinite payment periods. As a result, PECO has excluded these payments from the remaining years as such amounts would not be meaningful. PECO’s average annual obligation for these arrangements, included in each of the years 2018-2022, was $5 million.
(d)Represents commitments to purchase natural gas and related transportation, storage capacity and services, procure electric supply, and purchase AECs.
(e)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(f)Under its operating agreement with PJM, PECO is committed to the construction of transmission facilities to maintain system reliability. These amounts represent PECO’s expected portion of the costs to pay for the completion of the required construction projects. See Note 3 — Regulatory Matters of Combined Notes to Consolidated Financial Statements for additional information.

BGE
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
Long-term debt$2,600
 $
 $
 $550
 $2,050
Interest payments on long-term debt(a)
1,689
 101
 201
 186
 1,201
Operating leases(b)(c)(d)
170
 34
 68
 49
 19
Fuel purchase agreements(e)
514
 86
 121
 106
 201
Electric supply procurement(e)
1,026
 645
 381
 
 
Curtailment services commitments(e)
50
 22
 21
 7
 
Other purchase obligations(f)
453
 394
 50
 4
 5
PJM regional transmission expansion commitments(g)
118
 35
 70
 13
 
Total contractual obligations$6,620
 $1,317

$912

$915

$3,476
__________ 
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances.
(b)Amounts related to certain real estate leases and railroad licenses effectively have indefinite payment periods. As a result, BGE has excluded these payments from the remaining years as such amounts would not be meaningful. BGE’s average annual obligation for these arrangements, included in each of the years 2018—2022, was $1 million, respectively.
(c)Includes all future lease payments on a 99-year real estate lease that expires in 2106.
(d)The BGE column above includes minimum future lease payments associated with a 6-year lease for the Baltimore City conduit system that became effective during the fourth quarter of 2016. BGE's total commitments under the lease agreement are $25 million, $26 million, $28 million , $28 million and $14 million related to years 2018, 2019, 2020, 2021and 2022, respectively.
(e)Represents commitments to purchase natural gas and related transportation, storage capacity and services, procure electric supply, and curtailment services.
(f)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the BGE and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(g)Under its operating agreement with PJM, BGE is committed to the construction of transmission facilities to maintain system reliability. These amounts represent BGE’s expected portion of the costs to pay for the completion of the required construction projects. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements.

PHI
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
Long-term debt$5,162
 $370
 $12
 $551
 $4,229
Interest payments on long-term debt(a)
1,328
 231
 461
 433
 203
Capital leases27
 13
 14
 
 
Operating leases415
 56
 86
 79
 194
Fuel purchase agreements(b)
270
 30
 60
 60
 120
Long-term renewable energy and REC commitments(b)
345
 29
 58
 58
 200
Electric supply procurement(b)
1,720
 1,060
 660
 
 
Curtailment services commitments(b)
69
 30
 33
 6
 
Other purchase obligations(c)
3,434
 2,368
 822
 196
 48
DC PLUG obligation(d)
188
 28
 60
 60
 40
PJM regional transmission expansion commitments(e)
234
 92
 67
 75
 
Total contractual obligations$13,192
 $4,307
 $2,333
 $1,518
 $5,034
__________ 
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances.
(b)Represents commitments to purchase natural gas and related transportation, storage capacity and services, procure electric renewable energy and RECs, procure electric supply, and curtailment services.
(c)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(d)Related to DC PLUG project costs for assets funded by the District of Columbia for which the District of Columbia has assessed a charge on Pepco. Pepco will recover this charge from customers through a volumetric distribution rider. See Note 3 — Regulatory Matters of Combined Notes to Consolidated Financial Statements for additional information.
(e)Under its operating agreement with PJM, PHI is committed to the construction of transmission facilities to maintain system reliability. These amounts represent PHI’s expected portion of the costs to pay for the completion of the required construction projects. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements.

Pepco
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
Long-term debt$2,543
 $6
 $
 $312
 $2,225
Interest payments on long-term debt(a)
755
 129
 259
 251
 116
Capital leases27
 13
 14
 
 
Operating leases38
 8
 13
 9
 8
Electric supply procurement(b)
675
 433
 242
 
 
Curtailment services commitments(b)
26
 13
 10
 3
 
Other purchase obligations(c)
1,676
 995
 497
 146
 38
DC PLUG obligation(d)
188
 28
 60
 60
 40
PJM regional transmission expansion commitments(e)
86
 5
 38
 43
 
Total contractual obligations$6,014
 $1,630
 $1,133
 $824
 $2,427
__________ 
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances.
(b)Represents commitments to purchase procure electric supply and curtailment services.
(c)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(d)Related to DC PLUG project costs for assets funded by the District of Columbia for which the District of Columbia has assessed a charge on Pepco. Pepco will recover this charge from customers through a volumetric distribution rider. See Note 3 — Regulatory Matters of Combined Notes to Consolidated Financial Statements for additional information.
(e)Under its operating agreement with PJM, Pepco is committed to the construction of transmission facilities to maintain system reliability. These amounts represent Pepco’s expected portion of the costs to pay for the completion of the required construction projects. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements.
DPL
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
Long-term debt$1,309
 $83
 $12
 $
 $1,214
Interest payments on long-term debt(a)
288
 49
 97
 96
 46
Operating leases(b)
121
 20
 23
 24
 54
Fuel purchase agreements(c)
270
 30
 60
 60
 120
Long-term renewable energy and associated REC commitments(c)
345
 29
 58
 58
 200
Electric supply procurement(c)
504
 312
 192
 
 
Curtailment services commitments(c)
36
 14
 19
 3
 
Other purchase obligations(d)
963
 776
 152
 32
 3
PJM regional transmission expansion commitments(e)
27
 19
 3
 5
 
Total contractual obligations$3,863
 $1,332
 $616
 $278
 $1,637
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances.

(b)Amounts related to certain real estate leases and railroad licenses effectively have indefinite payment periods. As a result, DPL has excluded these payments from the remaining years as such amounts would not be meaningful. DPL's average annual obligation for these arrangements, included in each of the years 2018-2022, was $2 million.
(c)Represents commitments to purchase natural gas and related transportation, storage capacity and services, procure electric renewable energy and RECs, procure electric supply, and curtailment services.
(d)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(e)Under its operating agreement with PJM, DPL is committed to the construction of transmission facilities to maintain system reliability. These amounts represent DPL’s expected portion of the costs to pay for the completion of the required construction projects. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements.
ACE
   Payment due within  
 Total 2018 
2019 -
202
0
 
2021 -
202
2
 Due 2023
and beyond
Long-term debt$1,127
 $281
 $
 $239
 $607
Interest payments on long-term debt (a)
201
 39
 77
 58
 27
Operating leases57
 9
 16
 13
 19
Electric supply procurement (b)
541
 315
 226
 
 
Curtailment services commitments (b)
7
 3
 4
 
 
Other purchase obligations (c)
581
 439
 124
 15
 3
PJM regional transmission expansion commitments (d)
121
 68
 26
 27
 
Total contractual obligations$2,635
 $1,154
 $473
 $352
 $656
__________ 
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding at December 31, 2017 and do not reflect anticipated future refinancing, early redemptions or debt issuances.
(b)Represents commitments to procure electric supply and curtailment services.
(c)Represents the future estimated value at December 31, 2017 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(d)Under its operating agreement with PJM, ACE is committed to the construction of transmission facilities to maintain system reliability. These amounts represent ACE’s expected portion of the costs to pay for the completion of the required construction projects. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements.
See Note 23Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for discussion of the Registrants’ other commitments potentially triggered by future events.
For additional information regarding:
commercial paper, see Note 13Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements.
long-term debt, see Note 13Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements.
liabilities related to uncertain tax positions, see Note 14Income Taxes of the Combined Notes to Consolidated Financial Statements.
capital lease obligations, see Note 13Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements.

operating leases and rate relief commitments, see Note 23Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
the nuclear decommissioning and SNF obligations, see Notes 15Asset Retirement Obligations and 23Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
regulatory commitments, see Note 3Regulatory Matters of the Combined Notes to Consolidated Financial Statements.
variable interest entities, see Note 2Variable Interest Entities of the Combined Notes to Consolidated Financial Statements.
nuclear insurance, see Note 23Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements.
new accounting pronouncements, see Note 1Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements.
ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
The Registrants are exposed to market risks associated with adverse changes in commodity prices, counterparty credit, interest rates and equity prices. Exelon’s RMC approves risk management policies and objectives for risk assessment, control and valuation, counterparty credit approval, and the monitoring and reporting of risk exposures. The RMC is chaired by the chief executive officer and includes the chief risk officer, chief strategy officer, chief executive officer of Exelon Utilities, chief commercial officer, chief financial officer and chief executive officer of Constellation. The RMC reports to the Finance and Risk Committee of the Exelon Board of Directors on the scope of the risk management activities.
Commodity Price Risk (All Registrants)
Commodity price risk is associated with price movements resulting from changes in supply and demand, fuel costs, market liquidity, weather conditions, governmental regulatory and environmental policies and other factors. To the extent the total amount of energy Exelon generates and purchases differs from the amount of energy it has contracted to sell, Exelon is exposed to market fluctuations in commodity prices. Exelon seeks to mitigate its commodity price risk through the sale and purchase of electricity, fossil fuel and other commodities.
Generation
Electricity available from Generation’s owned or contracted generation supply in excess of Generation’s obligations to customers, including portions of the Utility Registrants' retail load, is sold into the wholesale markets. To reduce commodity price risk caused by market fluctuations, Generation enters into non-derivative contracts as well as derivative contracts, including swaps, futures, forwards and options, with approved counterparties to hedge anticipated exposures. Generation uses derivative instruments as economic hedges to mitigate exposure to fluctuations in commodity prices. Generation expects the settlement of the majority of its economic hedges will occur during 2018 through 2020.
In general, increases and decreases in forward market prices have a positive and negative impact, respectively, on Generation’s owned and contracted generation positions which have not been hedged. Exelon's hedging program involves the hedging of commodity price risk for Exelon's expected generation, typically on a ratable basis over three-year periods. As of December 31, 2017, the percentage of expected generation hedged is 85%-88%, 55%-58% and 26%-29% for 2018, 2019 and 2020,

respectively.  The percentage of expected generation hedged is the amount of equivalent sales divided by the expected generation. Expected generation is the volume of energy that best represents our commodity position in energy markets from owned or contracted generating facilities based upon a simulated dispatch model that makes assumptions regarding future market conditions, which are calibrated to market quotes for power, fuel, load following products and options. Equivalent sales represent all hedging products, which include economic hedges and certain non-derivative contracts, including Generation’s sales to ComEd, PECO and BGE to serve their retail load.
A portion of Generation’s hedging strategy may be accomplished with fuel products based on assumed correlations between power and fuel prices, which routinely change in the market. Market price risk exposure is the risk of a change in the value of unhedged positions. The forecasted market price risk exposure for Generation’s entire economic hedge portfolio associated with a $5 reduction in the annual average around-the-clock energy price based on December 31, 2017 market conditions and hedged position would be decreases in pre-tax net income of approximately $110 million, $400 million and $630 million, respectively, for 2018, 2019 and 2020. Power price sensitivities are derived by adjusting power price assumptions while keeping all other price inputs constant. Generation actively manages its portfolio to mitigate market price risk exposure for its unhedged position. Actual results could differ depending on the specific timing of, and markets affected by, price changes, as well as future changes in Generation’s portfolio. See Note 12 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information.
Proprietary Trading Activities
Proprietary trading portfolioinformation of the Registrants’ long-term debt. Debt activity for the year ended December 31, 2017, resulted in pre-tax gains of $18 million due to net mark-to-market gains of $5 million2022 and realized gains of $13 million. Generation has not segregated proprietary trading activity within2021 by Registrant was as follows:
During 2022, the following discussion becauselong-term debt was issued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonSMBC Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
$300Fund a cash payment to Constellation and for general corporate purposes.
ExelonU.S. Bank Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
300Fund a cash payment to Constellation and for general corporate purposes.
ExelonPNC Term Loan AgreementSOFR plus 0.65%
July 24, 2023(a)
250Fund a cash payment to Constellation and for general corporate purposes.
Exelon
Notes(b)
2.75%March 15, 2027650Repay existing indebtedness and for general corporate purposes.
Exelon
Notes(b)
3.35%March 15, 2032650Repay existing indebtedness and for general corporate purposes.
Exelon
Notes(b)
4.10%March 15, 2052700Repay existing indebtedness and for general corporate purposes.
ExelonLong-Term Software License Agreements2.30%December 1, 202517Procurement of software licenses
ExelonLong-Term Software License Agreements3.70%August 9, 20258Procurement of software licenses
ExelonSMBC Term Loan AgreementSOFR plus 0.85%April 7, 2024500Repay existing indebtedness and for general corporate purposes.
ComEd(c)
First Mortgage Bonds, Series 1323.15%March 15, 2032300Repay outstanding commercial paper obligations and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1333.85%March 15, 2052450Repay outstanding commercial paper obligations and to fund other general corporate purposes.
PECOFirst and Refunding Mortgage Bonds4.60%May 15, 2052350Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds4.375%August 15, 2052425Refinance outstanding commercial paper and for general corporate purposes.
BGENotes4.55%June 1, 2052500Repay outstanding commercial paper obligations, repay existing indebtedness, and for general corporate purposes.
PepcoFirst Mortgage Bonds3.97%March 24, 2052400Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.35%September 15, 2032225Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.06%February 15, 2052125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203225Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds3.06%February 15, 2052150Repay existing indebtedness and for general corporate purposes.
__________
(a)During the third quarter of 2022, the SMBC Term Loan, U.S. Bank Term Loan, and PNC Term Loan were all reclassified to Long-term debt due within one year on the Exelon Consolidated Balance Sheet, given that the Term Loans have maturity dates of July 21, 2023 , and July 24, 2023, respectively.
(b)In connection with the issuance and sale of the relative sizeNotes, Exelon entered into a Registration Rights Agreement with the representatives of the proprietary trading portfolio in comparison to Generation’s total Revenue net of purchased power and fuel expense. See Note 12 — Derivative Financial Instrumentsinitial purchasers of the Combined Notes to Consolidated Financial Statements for additional information.
Fuel Procurement
Generation procures natural gas through long-term and short-term contracts, and spot-market purchases. Nuclear fuel assemblies are obtained predominantly through long-term uranium concentrate supply contracts, contracted conversion services, contracted enrichment services, or a combination thereof, and contracted fuel fabrication services. The supply markets for uranium concentrates and certain nuclear fuel services are subject to price fluctuations and availability restrictions. Supply market conditions may make Generation’s procurement contracts subject to credit risk relatedother parties. Pursuant to the potential non-performanceRegistration Rights Agreement,
81

Exelon filed a registration statement on August 3, 2022, with respect to deliveran offer to exchange the contracted commodity or service atNotes for substantially similar notes of Exelon that are registered under the contracted prices. Approximately 59%Securities Act. An exchange offer of Generation’s uranium concentrate requirements from 2018 through 2022 are supplied by three producers. Inregistered notes for the event of non-performance by these or other suppliers, Generation believes that replacement uranium concentrates can be obtained, although at prices that may be unfavorable when comparedNotes was completed on January 12, 2023. The registered notes issued in exchange for Notes in the exchange offer have terms identical in all respects to the pricesNotes, except that their issuance was registered under the current supply agreements. Non-performance by these counterparties could have a material adverse impact on Exelon’s and Generation’s results of operations, cash flows and financial positions.Securities Act.
ComEd
(c)On January 3, 2023, ComEd entered into 20-year contracts for renewable energya purchase agreement of First Mortgage Bonds of $400 million and RECs beginning in June 2012. ComEd is permitted to recover its renewable energy$575 million at 4.90% and REC costs from retail customers with no mark-up.5.30% due on February 1, 2033 and February 1, 2053, respectively. The annual commitments represent the maximum settlements with suppliers for renewable energy and RECs under the existing contract terms. Pursuant to the ICC’s Order on December 19, 2012, ComEd’s commitments under the existing long-term contracts were reduced for the June 2013 through May 2014 procurement period. In addition, the ICC’s December 18, 2013 Order approved the reduction

of ComEd’s commitments under those contracts for the June 2014 through May 2015 procurement period, and the amountclosing date of the reductionissuance occurred on January 10, 2023.
During 2021, the following long-term debt was approved byissued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonLong-Term Software License Agreements3.62%December 1, 2025$4Procurement of software licenses.
ComEdFirst Mortgage Bonds, Series 1303.13%March 15, 2051700Repay a portion of outstanding commercial paper obligations and two outstanding term loans, and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1312.75%September 1, 2051450Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds3.05%March 15, 2051375Funding for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds2.85%September 15, 2051375Refinance existing indebtedness and for general corporate purposes.
BGESenior Notes2.25%June 15, 2031600Repay a portion of outstanding commercial paper obligations, repay existing indebtedness, and to fund other general corporate purposes.
PepcoFirst Mortgage Bonds2.32%March 30, 2031150Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.29%September 28, 2051125Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.24%March 30, 2051125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.30%March 15, 2031350Refinance existing indebtedness, repay outstanding commercial paper obligations, and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203275Repay existing indebtedness and for general corporate purposes.

During 2022, the ICCfollowing long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonJunior Subordinated Notes3.50%May 2, 2022$1,150 
ExelonLong-Term Software License Agreement3.96%May 1, 20242
ExelonLong-Term Software License Agreement2.30%December 1, 2025
ExelonLong-Term Software License Agreement3.70%August 9, 2025
PECOFirst Mortgage Bonds2.375%September 15, 2022350 
BGENotes2.80%August 15, 2022250
PepcoFirst Mortgage Bonds3.05%April 1, 2022200
PepcoTax-Exempt Bonds1.70%September 1, 2022110
Additionally, in March 2014.
ComEd has block energy contractsconnection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to procure electric supplysettle an intercompany loan that are executed through a competitive procurement process, which is further discussed in Note 3 — Regulatory Mattersmirrored the terms and amounts of the Combined Notes to Consolidated Financial Statements.third-party debt obligations. The block energy contracts are considered derivatives and qualify for the normal purchases and normal sales scope exception under current derivative authoritative guidance, andloan agreements were entered into as a result are accounted for on an accrual basis of accounting. ComEd does not execute derivatives for speculative or proprietary trading purposes. For additional information on these contracts, see Note 12 — Derivative Financial Instrumentspart of the Combined Notes to Consolidated Financial Statements.
PECO, BGE, Pepco, DPL and ACE
PECO, BGE, Pepco, DPL and ACE have contracts to procure electric supply that are executed through a competitive procurement process, which are further discussed in Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements. PECO, BGE, Pepco, DPL and ACE have certain full requirements contracts, which are considered derivatives and qualify for the normal purchases and normal sales scope exception under current derivative authoritative guidance, and as a result are accounted for on an accrual basis of accounting. Other full requirements contracts are not derivatives.
PECO, BGE and DPL have also executed derivative natural gas contracts, which either qualify for the normal purchases and normal sales exception or have no mark-to-market balances because the derivatives are index priced, to hedge their long-term price risk in the natural gas market. The hedging programs for natural gas procurement have no direct impact on their results of operations or financial position.
PECO, BGE, Pepco, DPL and ACE do not execute derivatives for speculative or proprietary trading purposes. For additional information on these contracts, see Note 12 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements.
Trading and Non-Trading Marketing Activities
The following tables detail Exelon’s, Generation’s, ComEd’s, PHI's and DPL's trading and non-trading marketing activities is included to address the recommended disclosures by the energy industry’s Committee of Chief Risk Officers (CCRO).
The following table provides detail on changes in Exelon’s, Generation’s, ComEd’s, PHI's and DPL's commodity mark-to-market net asset or liability balance sheet position from December 31, 2015 to December 31, 2017. It indicates the drivers behind changes in the balance sheet amounts. This table incorporates the mark-to-market activities that are immediately recorded in earnings. This table excludes all NPNS contracts and does not segregate proprietary trading activity.2012 Constellation merger. See Note 12 16
82

Derivative Financial InstrumentsDebt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the mirror debt.
During 2021, the following long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonSenior Notes2.45%April 15, 2021$300 
ExelonLong-Term Software License Agreements3.95%May 1, 202424
ExelonLong-Term Software License Agreements3.62%December 1, 20251
ComEdFirst Mortgage Bonds3.40%September 1, 2021350
PECOFirst Mortgage Bonds1.70%September 15, 2021300
BGESenior Notes3.50%November 15, 2021300
ACEFirst Mortgage Bonds4.35%April 1, 2021200
ACETax-Exempt First Mortgage Bonds6.80%March 1, 202139
ACETransition Bonds5.55%October 20, 202121
From time to time and as market conditions warrant, the Registrants may engage in long-term debt retirements via tender offers, open market repurchases or other viable options to reduce debt on their respective balance sheet classificationsheets.
Dividends
Quarterly dividends declared by the Exelon Board of Directors during the mark-to-marketyear ended December 31, 2022 and for the first quarter of 2023 were as follows:
PeriodDeclaration DateShareholder of
Record Date
Dividend Payable Date
Cash per Share(a)
First Quarter 2022February 8, 2022February 25, 2022March 10, 2022$0.3375 
Second Quarter 2022April 26, 2022May 13, 2022June 10, 2022$0.3375 
Third Quarter 2022July 26, 2022August 15, 2022September 9, 2022$0.3375 
Fourth Quarter 2022October 28, 2022November 15, 2022December 9, 2022$0.3375 
First Quarter 2023February 14, 2023February 27, 2023March 10, 2023$0.3600 
___________
(a)Exelon's Board of Directors approved an updated dividend policy for 2023. The 2023 quarterly dividend will be $0.36 per share.
Credit Matters and Cash Requirements
The Registrants fund liquidity needs for capital expenditures, working capital, energy contract net assets (liabilities) recordedhedging, and other financial commitments through cash flows from continuing operations, public debt offerings, commercial paper markets, and large, diversified credit facilities. The credit facilities include $4.0 billion in aggregate total commitments of which $2.1 billion was available to support additional commercial paper as of December 31, 20172022, and 2016.

         Successor  Predecessor
         
March 24 to
December 31,
  
January 1 to
March 23,
 Exelon Generation ComEd DPL PHI  PHI
Total mark-to-market energy contract net assets (liabilities) at December 31, 2015(a)
$1,506

$1,753
 $(247) $
 $
  $
Total change in fair value during 2016 of contracts recorded in result of operations236
 236
 
 
    
Reclassification to be realized at settlement of contracts recorded in results of operations(265) (265) 
 
 
  
Contracts received at acquisition date(b)
(59) (59) 
 
 
  
Changes in fair value—recorded through regulatory assets and liabilities(c)
(8) 
 (11) 4
 3
  1
Changes in allocated collateral(908) (905) 
 (4) (3)  (1)
Changes in net option premium paid66
 66
 
 
 
  
Option premium amortization11
 11
 
 
 
  
Upfront payments and amortizations(d) 
140
 140
 
 
     
Total mark-to-market energy contract net assets (liabilities) at December 31, 2016(a) 
$719
 $977
 $(258) $
 $
  $
__________
(a)Amounts are shown net of collateral paid to and received from counterparties.
(b)Includes fair value from contracts received at acquisition of ConEdison Solutions of $(59) million.
(c)For ComEd and DPL, the changes in fair value are recorded as a change in regulatory assets or liabilities. As of December 31, 2016, ComEd recorded a regulatory liability of $258 million, respectively, related to its mark-to-market derivative liabilities with Generation and unaffiliated suppliers. ComEd recorded $29 million of decreases in fair value and an increase for realized losses due to settlements of $18 million in purchased power expense associated with floating-to-fixed energy swap suppliers for the year ended December 31, 2016.
(d)Includes derivative contracts acquired or sold by Generation through upfront payments or receipts of cash, excluding option premiums, and the associated amortizations.

         Successor
 Exelon Generation ComEd DPL PHI
Total mark-to-market energy contract net assets (liabilities) at December 31, 2016(a)
$719
 $977
 $(258) $
 $
Total change in fair value during 2016 of contracts recorded in result of operations110
 110
 
 
 
Reclassification to be realized at settlement of contracts recorded in results of operations(273) (273) 
 
 
Changes in fair value—recorded through regulatory assets and liabilities(c)
(1) 
 2
 (3) (3)
Changes in allocated collateral140
 137
 
 3
 3
Changes in net option premium received(28) (28) 
 
 
Option premium amortization(7) (7) 
 
 
Upfront payments and amortizations(b) 
(24) (24) 
 
 
Other miscellaneous(d)
31
 31
 
 
 
Total mark-to-market energy contract net assets (liabilities) at December 31, 2017(a) 
$667
 $923
 $(256) $
 $
__________
(a)Amounts are shown net of collateral paid to and received from counterparties.
(b)Includes derivative contracts acquired or sold by Generation through upfront payments or receipts of cash, excluding option premiums, and the associated amortizations.
(c)For ComEd and DPL, the changes in fair value are recorded as a change in regulatory assets or liabilities. As of December 31, 2017, ComEd recorded a regulatory liability of $256 million, related to its mark-to-market derivative liabilities with Generation and unaffiliated suppliers. For the year ended December 31, 2017, ComEd also recorded $18 million of decreases in fair value and realized losses due to settlements of $20 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the year ended December 31, 2017.
(d)As a result of the bankruptcy filing for EGTP on November 7, 2017, the net mark-to-market commodity contracts were deconsolidated from Exelon’s and Generation consolidated financial statements.

Fair Valuesof which no financial institution has more than 6% of the aggregate commitments for the Registrants. On February 1, 2022, Exelon Corporate and the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information. The Registrants had access to the commercial paper markets and had availability under their revolving credit facilities during 2022 to fund their short-term liquidity needs, when necessary. The Registrants routinely review the sufficiency of their liquidity position, including appropriate sizing of credit facility commitments, by performing various stress test scenarios, such as commodity price movements, increases in margin-related transactions, changes in hedging levels, and the impacts of hypothetical credit downgrades. The Registrants closely monitor events in the financial markets and the financial institutions associated with the credit facilities, including monitoring credit ratings and outlooks, credit default swap levels, capital raising, and merger activity. See PART I, ITEM 1A. RISK FACTORS for additional information regarding the effects of uncertainty in the capital and credit markets.
The following tables present maturityRegistrants believe their cash flow from operating activities, access to credit markets, and sourcetheir credit facilities provide sufficient liquidity to support the estimated future cash requirements discussed below.
83

On August 4, 2022, Exelon Generationentered into an agreement with certain underwriters in connection with an underwritten public offering of 12.995 million shares of its common stock, no par value. The net proceeds were $563 million before expenses paid. Exelon used the proceeds, together with available cash balances, to repay $575 million in borrowings under a $1.15 billion term loan credit facility. See Note 19 — Shareholders' Equity and ComEd mark-to-market commodity contract net assets (liabilities). The tables provide two fundamental pieces of information. First, the tables provide the source of fair value used in determining the carrying amountNote 16 — Debt and Credit Agreements of the Registrants’ total mark-to-market net assets (liabilities), netCombined Notes to Consolidated Financial Statements for additional information.
On August 4, 2022, Exelon executed an equity distribution agreement (“Equity Distribution Agreement”) with certain sales agents and forward sellers and certain forward purchasers establishing an ATM equity distribution program under which it may offer and sell shares of allocated collateral. Second,its common stock, having an aggregate gross sales price of up to $1.0 billion. Exelon has no obligation to offer or sell any shares of common stock under the tables showEquity Distribution Agreement and may at any time suspend or terminate offers and sales under the maturity, by year,Equity Distribution Agreement. As of December 31, 2022, Exelon has not issued any shares of common stock under the Registrants’ commodity contract net assets (liabilities) netATM program and has not entered into any forward sale agreements.
Pursuant to the Separation Agreement between Exelon and Constellation Energy Corporation, Exelon made a cash payment of allocated collateral, giving an indication of when these mark-to-market amounts will settle and either generate or require cash.$1.75 billion to Generation on January 31, 2022. See Note 112Fair Value of Financial Assets and LiabilitiesDiscontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information regarding fair value measurements andon the fair value hierarchy.
Exelon
 Maturities Within 
Total Fair
Value
 2018 2019 2020 2021 2022 2023 and Beyond 
Normal Operations, Commodity derivative contracts(a)(b):
             
Actively quoted prices (Level 1)$(32) $(43) $(15) $2
 $(2) $
 $(90)
Prices provided by external sources (Level 2)462
 (6) (1) 6
 
 
 461
Prices based on model or other valuation methods (Level 3)(c)
315
 130
 23
 (27) (58) (87) 296
Total$745
 $81
 $7
 $(19) $(60) $(87) $667
__________
(a)Mark-to-market gains and losses on other economic hedge and trading derivative contracts that are recorded in results of operations.
(b)Amounts are shown net of collateral paid to and received from counterparties (and offset against mark-to-market assets and liabilities) of $466 million at December 31, 2017.
(c)Includes ComEd’s net assets (liabilities) associated with the floating-to-fixed energy swap contracts with unaffiliated suppliers.
Generation
 Maturities Within 
Total Fair
Value
 2018 2019 2020 2021 2022 2023 and Beyond 
Normal Operations, Commodity derivative contracts(a)(b):
             
Actively quoted prices (Level 1)$(32) $(43) $(15) $2
 $(2) $
 $(90)
Prices provided by external sources (Level 2)462
 (6) (1) 6
 
 
 461
Prices based on model or other valuation methods (Level 3)(c)
336
 152
 44
 (6) (37) 63
 552
Total$766
 $103
 $28
 $2
 $(39) $63
 $923
__________
(a)Mark-to-market gains and losses on other economic hedge and trading derivative contracts that are recorded in the results of operations.
(b)Amounts are shown net of collateral paid to and received from counterparties (and offset against mark-to-market assets and liabilities) of $466 million at December 31, 2017.

ComEd
 Maturities Within 
Fair
Value
 2018 2019 2020 2021 2022 2023 and Beyond 
Prices based on model or other valuation methods (Level 3)(a) 
$(21) $(22) $(21) $(21) $(21) $(150) $(256)
__________
(a)Represents ComEd’s net liabilities associated with the floating-to-fixed energy swap contracts with unaffiliated suppliers.
Credit Risk, Collateral and Contingent Related Features (All Registrants)separation.
The Registrantsfollowing table presents the incremental collateral that each Utility Registrant would be exposedhave been required to credit-related lossesprovide in the event each Utility Registrant lost its investment grade credit rating at December 31, 2022 and available credit facility capacity prior to any incremental collateral at December 31, 2022:
PJM Credit Policy Collateral
Other Incremental Collateral Required(a)
Available Credit Facility Capacity Prior to Any Incremental Collateral
ComEd$31 $— $568 
PECO71 361 
BGE119 191 
Pepco— 
DPL15 185 
ACE— 300 
__________
(a)Represents incremental collateral related to natural gas procurement contracts.

Capital Expenditures
As of non-performance by counterpartiesDecember 31, 2022, estimates of capital expenditures for plant additions and improvements are as follows:
(in millions)(a)
2023 Transmission2023 Distribution2023 GasTotal 2023
Beyond 2023(b)
ExelonN/AN/AN/A$7,175 $24,100 
ComEd475 2,075 N/A2,550 8,575 
PECO75 975 325 1,375 4,825 
BGE325 525 475 1,325 4,700 
PHI550 1,225 125 1,900 6,000 
Pepco250 650 N/A900 2,825 
DPL175 275 125 575 1,800 
ACE150 300 N/A425 1,400 
___________
(a)Numbers rounded to the nearest $25M and may not sum due to rounding.
(b)Includes estimated capital expenditures for the Utility Registrants from 2024 and 2026.
Projected capital expenditures and other investments are subject to periodic review and revision to reflect changes in economic conditions and other factors. Projected capital expenditures at the Utility Registrants are for continuing projects to maintain and improve operations, including enhancing reliability and adding capacity to the transmission and distribution systems. The Utility Registrants anticipate that execute derivative instruments. The credit exposurethey will fund their capital
84

expenditures with a combination of internally generated funds and borrowings and additional capital contributions from parent.
Retirement Benefits
Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the fair valuePension Protection Act of contracts at the reporting date. See Note 12—Derivative Financial Instruments2006 (the Act), management of the Combined Notespension obligation, and regulatory implications. The Act requires the attainment of certain funding levels to Consolidated Financial Statements foravoid benefit restrictions (such as an inability to pay lump sums or to accrue benefits prospectively), and at-risk status (which triggers higher minimum contribution requirements and participant notification). The projected contributions below reflect a detailed discussionfunding strategy to make annual contributions with the objective of credit risk, collateral,achieving 100% funded status on an ABO basis over time. This funding strategy helps minimize volatility of future period required pension contributions. Exelon’s estimated annual qualified pension contributions will be $20 million in 2023. Unlike the qualified pension plans, Exelon’s non-qualified pension plans are not funded, given that they are not subject to statutory minimum contribution requirements.
While OPEB plans are also not subject to statutory minimum contribution requirements, Exelon does fund certain of its plans. For Exelon's funded OPEB plans, contributions generally equal accounting costs, however, Exelon’s management has historically considered several factors in determining the level of contributions to its OPEB plans, including liabilities management, levels of benefit claims paid, and contingentregulatory implications (amounts deemed prudent to meet regulatory expectations and best assure continued rate recovery). The amounts below include benefit payments related features.
Generationto unfunded plans.
The following tables provide information on Generation’s credit exposure fortable provides all derivative instruments, normal purchasesRegistrants' planned contributions to the qualified pension plans, planned benefit payments to non-qualified pension plans, and normal sales agreements,planned contributions to OPEB plans in 2023:
Qualified Pension PlansNon-Qualified Pension PlansOPEB
Exelon$20 $48 $47 
ComEd20 19 
PECO— — 
BGE— 15 
PHI— 11 
Pepco— 11 
DPL— — — 
ACE— — — 
To the extent interest rates decline significantly or the pension and applicable payablesOPEB plans earn less than the expected asset returns, annual pension contribution requirements in future years could increase. Conversely, to the extent interest rates increase significantly or the pension and receivables, net of collateralOPEB plans earn greater than the expected asset returns, annual pension and instruments that are subject to master netting agreements, as of December 31, 2017. The tables further delineate that exposure by credit rating of the counterparties and provide guidance on the concentration of credit risk to individual counterparties and an indication of the duration of a company’s credit risk by credit rating of the counterparties. The figuresOPEB contribution requirements in the tables below exclude credit risk exposure from individual retail customers, uranium procurement contracts, and exposure through RTOs, ISOs and commodity exchanges, which are discussed below.future years could decrease. Additionally, the figures in the tables below exclude exposures with affiliates, including net receivables with ComEd, PECO, BGE, Pepco, DPL and ACE of $28 million, $22 million, $24 million, $36 million, $12 million and $6 million respectively. expected contributions could change if Exelon changes its pension or OPEB funding strategy.
See Note 2614Related Party TransactionsRetirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information.information on pension and OPEB contributions.
Cash Requirements for Other Financial Commitments
Rating as of December 31, 2017
Total
Exposure
Before Credit
Collateral
 
Credit
Collateral 
(a)
 
Net
Exposure
 
Number of
Counterparties
Greater than 10%
of Net Exposure
 
Net Exposure of
Counterparties
Greater than 10%
of Net Exposure
Investment grade$738
 $4
 $734
 1
 $244
Non-investment grade90
 12
 78
 
 
No external ratings         
Internally rated—investment grade253
 
 253
 
 
Internally rated—non-investment grade83
 11
 72
 
 
Total$1,164
 $27
 $1,137
 1
 $244

 Maturity of Credit Risk Exposure
Rating as of December 31, 2017
Less than
2 Years
 
2-5
Years
 
Exposure
Greater than
5 Years
 
Total Exposure
Before Credit
Collateral
Investment grade$657
 $80
 $1
 $738
Non-investment grade74
 16
 
 90
No external ratings       
Internally rated—investment grade191
 30
 32
 253
Internally rated—non-investment grade79
 4
 
 83
Total$1,001
 $130
 $33
 $1,164
Net Credit Exposure by Type of CounterpartyAs of December 31, 2017
Financial institutions$41
Investor-owned utilities, marketers, power producers558
Energy cooperatives and municipalities452
Other86
Total$1,137
__________
(a)As of December 31, 2017, credit collateral held from counterparties where Generation had credit exposure included $8 million of cash and $19 million of letters of credit.
The Utility Registrants
Credit risk forfollowing tables summarize the Utility Registrants is governed by credit and collection policies, which are aligned with state regulatory requirements. The Utility Registrants are currently obligated to provide service to all electric customers within their franchised territories. The Utility Registrants record a provision for uncollectible accounts, based upon historical experience, to provide for the potential loss from nonpayment by these customers. The Utility Registrants will monitor nonpayment from customers and will make any necessary adjustments to the provision for uncollectible accounts. See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for the allowance for uncollectible accounts policy. The Utility Registrants did not have any customers representing over 10% of their revenuesRegistrants' future estimated cash payments as of December 31, 2017. 2022 under existing financial commitments:
85

Exelon
2023Beyond 2023TotalTime Period
Long-term debt(a)
$1,788 $35,289 $37,077 2023 - 2053
Interest payments on long-term debt(b)
1,476 23,645 25,121 2023 - 2052
Operating leases(c)
52 327 379 2023 - 2106
Fuel purchase agreements(d)
321 1,076 1,397 2023 - 2038
Electric supply procurement4,041 2,407 6,448 2023 - 2026
Long-term renewable energy and REC commitments348 1,483 1,831 2023 - 2038
Other purchase obligations(c)(e)
4,816 3,070 7,886 2023 - 2032
DC PLUG obligation34 37 2023 - 2024
ZEC commitments99 676 775 2023 - 2027
Pension contributions(f)
20 704 724 2023 - 2028
Total cash requirements$12,995 $68,680 $81,675 
__________
(a)Includes amounts from ComEd and PECO financing trusts.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022. Includes estimated interest payments due to ComEd and PECO financing trusts.
(c)These amounts exclude payments and obligations related to the Baltimore City Conduit system lease. In January 2023, BGE signed an agreement to extend its use of the Baltimore City Conduit system through December 2026. Over the term of the new agreement, BGE has committed to pay the City of Baltimore approximately $19 million and also incur $120 million of capital improvements to the Conduit system. However, the agreement is still pending approval by Baltimore City which is expected to occur in the first quarter of 2023. Once approved, the agreement would be effective immediately.
(d)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(e)Represents the future estimated value at December 31, 2022 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants or subsidiary and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(f)These amounts represent Exelon’s expected contributions to its qualified pension plans. Qualified pension contributions for years after 2028 are not included.
86

ComEd
2023Beyond 2023TotalTime Period
Long-term debt(a)
$— $10,835 $10,835 2023 - 2053
Interest payments on long-term debt(b)
421 7,640 8,061 2023 - 2052
Operating leases— 2023 - 2026
Electric supply procurement955 450 1,405 2023 - 2025
Long-term renewable energy and REC commitments318 1,299 1,617 2023 - 2038
Other purchase obligations(c)
1,124 488 1,612 2023 - 2032
ZEC commitments99 676 775 2023 - 2027
Total cash requirements$2,919 $21,388 $24,307 
__________
(a)Includes amounts from ComEd financing trust.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Includes estimated interest payments due to the ComEd financing trust.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between ComEd and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

PECO
2023Beyond 2023TotalTime Period
Long-term debt(a)
$50 $4,809 $4,859 2023 - 2052
Interest payments on long-term debt(b)
194 4,053 4,247 2023 - 2052
Operating leases— 2023 - 2034
Fuel purchase agreements(c)
172 307 479 2023 - 2029
Electric supply procurement767 313 1,080 2023 - 2024
Other purchase obligations(d)
835 593 1,428 2023 - 2030
Total cash requirements$2,018 $10,076 $12,094 
__________
(a)Includes amounts from PECO financing trusts.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Includes estimated interest payments due to the PECO financing trusts.
(c)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(d)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between PECO and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
87

BGE
2023Beyond 2023TotalTime Period
Long-term debt$300 $3,950 $4,250 2023 - 2052
Interest payments on long-term debt(a)
151 2,836 2,987 2023 - 2052
Operating leases(b)
18 19 2023 - 2106
Fuel purchase agreements(c)
116 573 689 2023 - 2038
Electric supply procurement1,003 755 1,758 2023 - 2025
Other purchase obligations(b)(d)
966 299 1,265 2023 - 2028
Total cash requirements$2,537 $8,431 $10,968 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)These amounts exclude payments and obligations related to the Baltimore City Conduit system lease. In January 2023, BGE signed an agreement to extend its use of the Baltimore City Conduit system through December 2026. Over the term of the new agreement, BGE has committed to pay the City of Baltimore approximately $19 million and also incur $120 million of capital improvements to the Conduit system. However, the agreement is still pending approval by Baltimore City which is expected to occur in the first quarter of 2023. Once approved, the agreement would be effective immediately.
(c)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(d)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between BGE and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

PHI
2023Beyond 2023TotalTime Period
Long-term debt$577 $7,042 $7,619 2023 - 2052
Interest payments on long-term debt(a)
314 4,438 4,752 2023 - 2052
Finance leases14 68 82 2023 - 2030
Operating leases37 195 232 2023 - 2032
Fuel purchase agreements(b)
33 196 229 2023 - 2028
Electric supply procurement1,316 889 2,205 2023 - 2026
Long-term renewable energy and REC commitments30 184 214 2023 - 2033
Other purchase obligations(c)
1,335 710 2,045 2023 - 2031
DC PLUG obligation34 37 2023 - 2024
Total cash requirements$3,690 $13,725 $17,415 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022.
(b)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between Pepco, DPL, ACE, and PHISCO and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
88

Pepco
2023Beyond 2023TotalTime Period
Long-term debt$— $3,773 $3,773 2023 - 2052
Interest payments on long-term debt(a)
170 2,659 2,829 2023 - 2052
Finance leases23 28 2023 - 2030
Operating leases41 48 2023 - 2032
Electric supply procurement597 453 1,050 2023 - 2026
Other purchase obligations(b)
696 334 1,030 2023 - 2027
DC PLUG obligation34 37 2023 - 2024
Total cash requirements$1,509 $7,286 $8,795 
__________ 
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between Pepco and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

DPL
2023Beyond 2023TotalTime Period
Long-term debt$578 $1,337 $1,915 2023 - 2052
Interest payments on long-term debt(a)
68 1,061 1,129 2023 - 2052
Finance leases28 34 2023 - 2030
Operating leases10 52 62 2023 - 2032
Fuel purchase agreements(b)
33 196 229 2023 - 2028
Electric supply procurement358 220 578 2023 - 2025
Long-term renewable energy and REC commitments30 184 214 2023 - 2033
Other purchase obligations(c)
270 158 428 2023 - 2031
Total cash requirements$1,353 $3,236 $4,589 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022.
(b)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between DPL and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
89

ACE
2023Beyond 2023TotalTime Period
Long-term debt$— $1,747 $1,747 2023 - 2052
Interest payments on long-term debt(a)
62 598 660 2023 - 2052
Finance leases17 20 2023 - 2030
Operating leases11 2023 - 2028
Electric supply procurement361 216 577 2023 - 2025
Other purchase obligations(b)
323 168 491 2023 - 2027
Total cash requirements$753 $2,753 $3,506 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between ACE and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
See Note 18 — Commitments and Contingencies and Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.information of the Registrants’ other commitments potentially triggered by future events. Additionally, see below for where to find additional information regarding the financial commitments in the tables above in the Combined Notes to the Consolidated Financial Statements:
As of December 31, 2017, ComEd’s net credit exposure to suppliers was approximately $1 million. PECO
ItemLocation within Notes to the Consolidated Financial Statements
Long-term debtNote 16 — Debt and Credit Agreements
Interest payments on long-term debtNote 16 — Debt and Credit Agreements
Finance leasesNote 10 — Leases
Operating leasesNote 10 — Leases
REC commitmentsNote 3 — Regulatory Matters
ZEC commitmentsNote 3 — Regulatory Matters
DC PLUG obligationNote 3 — Regulatory Matters
Pension contributionsNote 14 — Retirement Benefits
Credit Facilities
Exelon Corporate, ComEd, and BGE had no net credit exposure to suppliers asmeet their short-term liquidity requirements primarily through the issuance of December 31, 2017. Ascommercial paper. PECO meets its short-term liquidity requirements primarily through the issuance of December 31, 2017commercial paper and borrowings from the Exelon intercompany money pool. Pepco, DPL, and ACE's netACE meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the PHI intercompany money pool. PHI Corporate meets its short-term liquidity requirements primarily through the issuance of short-term notes and the Exelon intercompany money pool. The Registrants may use their respective credit exposures were immaterial. facilities for general corporate purposes, including meeting short-term funding requirements and the issuance of letters of credit.
See Note 1216Derivative Financial InstrumentsDebt and Credit Agreements of the Combined Notes to Consolidated Financial Statements.Statements for additional information on the Registrants’ credit facilities and short term borrowing activity.
Collateral (All Registrants)
90

GenerationCapital Structure
As of December 31, 2022, the capital structures of the Registrants consisted of the following:
Exelon(a)
ComEdPECOBGEPHIPepcoDPLACE
Long-term debt57 %43 %44 %44 %41 %48 %48 %50 %
Long-term debt to affiliates(b)
%%%— %— %— %— %— %
Common equity38 %54 %52 %52 %— %48 %49 %50 %
Member’s equity— %— %— %— %57 %— %— %— %
Commercial paper and notes payable%%%%%%%— %
__________ 
(a)As of December 31, 2021, Exelon's Long-term debt and Common equity capital structure percentages were 50% and 45%, respectively. The change in capital structure percentages above is a result of a decrease in common equity due to the separation of Constellation in addition to an increase in long-term debt issuances. See Note 2 — Discontinued Operations for additional information regarding the separation.
(b)Includes approximately $390 million, $205 million, and $184 million owed to unconsolidated affiliates of Exelon, ComEd, and PECO respectively. These special purpose entities were created for the sole purposes of issuing mandatory redeemable trust preferred securities of ComEd and PECO.
Security Ratings
The Registrants’ access to the capital markets, including the commercial paper market, and their respective financing costs in those markets, may depend on the securities ratings of the entity that is accessing the capital markets.
The Registrants’ borrowings are not subject to default or prepayment as a result of a downgrading of securities, although such a downgrading of a Registrant’s securities could increase fees and interest charges under that Registrant’s credit agreements.
As part of the normal course of business, Generation routinely entersthe Registrants enter into physicalcontracts that contain express provisions or financial contractsotherwise permit the Registrants and their counterparties to demand adequate assurance of future performance when there are reasonable grounds for the sale and purchase of electricity, natural gas and other commodities.doing so. In accordance with the contracts and applicable contracts law, if Generation isthe Registrants are downgraded by a credit rating agency, especially if such downgrade is to a level below investment grade, it is possible that a counterparty would attempt to rely on such a downgrade as a basis for making a demand for adequate assurance of future performance. Depending on Generation’s net position with a counterparty, the demandperformance, which could be forinclude the posting of additional collateral. In the absence of expressly agreed-to provisions that specify the collateral that must be provided, collateral requested will be a function of the facts and circumstances of the situation

at the time of the demand. See Note 12 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for information regarding collateral requirements. See Note 23 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for information regarding the letters of credit supporting the cash collateral.
Generation transacts output through bilateral contracts. The bilateral contracts are subject to credit risk, which relates to the ability of counterparties to meet their contractual payment obligations. Any failure to collect these payments from counterparties could have a material impact on Exelon’s and Generation’s results of operations, cash flows and financial positions. As market prices rise above or fall below contracted price levels, Generation is required to post collateral with purchasers; as market prices fall below contracted price levels, counterparties are required to post collateral with Generation. To post collateral, Generation depends on access to bank credit facilities, which serve as liquidity sources to fund collateral requirements. See ITEM 7.Liquidity and Capital Resources — Credit Matters — Exelon Credit Facilities for additional information.
The Utility Registrants
As of December 31, 2017, ComEd held $10 million in collateral from suppliers in association with energy procurement contracts, approximately $2 million in collateral from suppliers for REC contract obligations and approximately $19 million in collateral from suppliers for long-term renewable energy contracts. BGE is not required to post collateral under its electric supply contracts but was holding an immaterial amount of collateral under its electric supply procurement contracts. BGE was not required to post collateral under its natural gas procurement contracts, but was holding an immaterial amount of collateral under its natural gas procurement contracts. PECO, Pepco, DPL and ACE were not required to post collateral under their energy and/or natural gas procurement contracts. See Note 3 — Regulatory Matters and Note 1215 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information.information on collateral provisions.
RTOs and ISOs (All Registrants)
All Registrants participate in all, or some, of the established, wholesale spot energy markets that are administered by PJM, ISO-NE, ISO-NY, CAISO, MISO, SPP, AESO, OIESO and ERCOT. ERCOT is not subject to regulation by FERC but performs a similar function in Texas to that performed by RTOs in markets regulated by FERC. In these areas, power is traded through bilateral agreements between buyers and sellers and on the spot energy markets that are administered by the RTOs or ISOs, as applicable. In areas where there is no spot energy market, electricity is purchased and sold solely through bilateral agreements. For sales into the spot markets administered by an RTO or ISO, the RTO or ISO maintains financial assurance policies that are established and enforced by those administrators. The credit policies of the RTOsratings for ComEd, PECO, BGE, and ISOs may, under certain circumstances, require that losses arising from the default of one member on spot energy market transactions be shared by the remaining participants. Non-performance or non-payment by a major counterparty could result in a material adverse impact on the Registrants’ results of operations, cash flows and financial positions.
Exchange Traded Transactions (Exelon, Generation, PHI and DPL)
Generation enters into commodity transactions on NYMEX, ICE, NASDAQ, NGX and the Nodal exchange ("the Exchanges"). DPL enters into commodity transactions on ICE. The Exchange clearinghouses act as the counterparty to each trade. Transactions on the Exchanges must adhere to comprehensive collateral and margining requirements. As a result, transactions on Exchanges are significantly collateralized and have limited counterparty credit risk.

Interest Rate and Foreign Exchange Risk (All Registrants)
The Registrants use a combination of fixed-rate and variable-rate debt to manage interest rate exposure. The Registrants may also utilize fixed-to-floating interest rate swaps, which are typically designated as fair value hedges, to manage their interest rate exposure. In addition, the Registrants may utilize interest rate derivatives to lock in rate levels, which are typically designated as cash flow hedges. These strategies are employed to manage interest rate risks. At December 31, 2017, Exelon had $800 million of notional amounts of fixed-to-floating hedges outstanding and Exelon and Generation had $636 million of notional amounts of floating-to-fixed hedges outstanding. Assuming the fair value and cash flow interest rate hedges are 100% effective, a hypothetical 50 basis point increase in the interest rates associated with unhedged variable-rate debt (excluding Commercial Paper) and fixed-to-floating swaps would result in approximately a $6 million decrease in Exelon Consolidated pre-tax incomedid not change for the year ended December 31, 2017. To manage foreign exchange rate exposure associated with international energy purchases in currencies other than U.S. dollars, Generation utilizes foreign currency derivatives, which are typically designated as economic hedges. See Note 12—Derivative Financial Instruments2022. On January 14, 2022, Fitch lowered Exelon Corporate's long-term and senior unsecured ratings from BBB+ to BBB and affirmed the short-term rating of the Combined NotesF2. In addition, Fitch upgraded Pepco, ACE, and PHI's long-term rating from BBB to Consolidated Financial Statements for additional information.
Equity Price Risk (ExelonBBB+ and Generation)
Exelonupgraded Pepco and Generation maintain trust funds, as required by the NRC,ACE's senior secured rating from A- to fund certain costs of decommissioning its nuclear plants. As of December 31, 2017, Generation’s decommissioning trust funds are reflected at fair value on its Consolidated Balance Sheets. The mix of securities in the trust funds is designed to provide returns to be used to fund decommissioning and to compensate Generation for inflationary increases in decommissioning costs; however, the equity securities in the trust funds are exposed to price fluctuations in equity markets, and the value of fixed-rate, fixed-income securities are exposed to changes in interest rates. Generation actively monitors the investment performance of the trust funds and periodically reviews asset allocation in accordance with Generation’s NDT fund investment policy. A hypothetical 10% increase in interest rates and decrease in equity prices would result in a $662 million reduction in the fair value of the trust assets. This calculation holds all other variables constant and assumes only the discussed changes in interest rates and equity prices. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS for further discussion of equity price risk as a result of the current capital and credit market conditions.

A.
91

ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
Generation
General

ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Generation
Generation is exposed to market risks associated with commodity price, credit, interest rates and equity price. These risks are described above under Quantitative and Qualitative Disclosures about Market Risk — Exelon.

ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
ComEd
General
ComEd operates in a single business segment and its operations consist of the purchase and regulated retail sale of electricity and the provision of distribution and transmission services to retail customers in northern Illinois, including the City of Chicago. This segment is discussed in further detail in ITEM 1. BUSINESS—ComEd of this Form 10-K.
Executive Overview
A discussion of items pertinent to ComEd’s executive overview is set forth under EXELON CORPORATION—Executive Overview of this Form 10-K.
Results of Operations
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016 and Year Ended December 31, 2016 Compared to Year Ended December 31, 2015
A discussion of ComEd’s results of operations for 2017 compared to 2016 and for 2016 compared to 2015 is set forth under Results of Operations—ComEd in EXELON CORPORATION — Results of Operations of this Form 10-K.
Liquidity and Capital Resources
ComEd’s business is capital intensive and requires considerable capital resources. ComEd’s capital resources are primarily provided by internally generated cash flows from operations and, to the extent necessary, external financing, including the issuance of long-term debt, commercial paper or credit facility borrowings. ComEd’s access to external financing at reasonable terms is dependent on its credit ratings and general business conditions, as well as that of the utility industry in general. At December 31, 2017, ComEd had access to a revolving credit facility with aggregate bank commitments of $1 billion.
See EXELON CORPORATION — Liquidity and Capital Resources and Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements of this Form 10-K for further discussion.
Capital resources are used primarily to fund ComEd’s capital requirements, including construction, retirement of debt, and contributions to Exelon’s pension plans. Additionally, ComEd operates in rate-regulated environments in which the amount of new investment recovery may be limited and where such recovery takes place over an extended period of time.
Cash Flows from Operating Activities
A discussion of items pertinent to ComEd’s cash flows from operating activities is set forth under Cash Flows from Operating Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.

Cash Flows from Investing Activities
A discussion of items pertinent to ComEd’s cash flows from investing activities is set forth under Cash Flows from Investing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Cash Flows from Financing Activities
A discussion of items pertinent to ComEd’s cash flows from financing activities is set forth under Cash Flows from Financing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Credit Matters
A discussion of credit matters pertinent to ComEd is set forth under Credit Matters in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Contractual Obligations and Off-Balance Sheet Arrangements
A discussion of ComEd’s contractual obligations, commercial commitments and off-balance sheet arrangements is set forth under Contractual Obligations and Off-Balance Sheet Arrangements in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Critical Accounting Policies and Estimates
See All Registrants — Critical Accounting Policies and Estimates above for a discussion of ComEd’s critical accounting policies and estimates.
New Accounting Pronouncements
See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for information regarding new accounting pronouncements.
ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
ComEd
ComEd is exposed to market risks associated with commodity price, credit and interest rates. These risks are described above under Quantitative and Qualitative Disclosures about Market Risk— Exelon.

ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
PECO
General
PECO operates in a single business segment and its operations consist of the purchase and regulated retail sale of electricity and the provision of distribution and transmission services in southeastern Pennsylvania including the City of Philadelphia, and the purchase and regulated retail sale of natural gas and the provision of distribution service in Pennsylvania in the counties surrounding the City of Philadelphia. This segment is discussed in further detail in ITEM 1. BUSINESS—PECO of this Form 10-K.
Executive Overview
A discussion of items pertinent to PECO’s executive overview is set forth under EXELON CORPORATION—Executive Overview of this Form 10-K.
Results of Operations
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016 and Year Ended December 31, 2016 Compared to Year Ended December 31, 2015
A discussion of PECO’s results of operations for 2017 compared to 2016 and for 2016 compared to 2015 is set forth under Results of Operations—PECO in EXELON CORPORATION — Results of Operations of this Form 10-K.
Liquidity and Capital Resources
PECO’s business is capital intensive and requires considerable capital resources. PECO’s capital resources are primarily provided by internally generated cash flows from operations and, to the extent necessary, external financing, including the issuance of long-term debt, commercial paper or participation in the intercompany money pool. PECO’s access to external financing at reasonable terms is dependent on its credit ratings and general business conditions, as well as that of the utility industry in general. If these conditions deteriorate to where PECO no longer has access to the capital markets at reasonable terms, PECO has access to a revolving credit facility. At December 31, 2017, PECO had access to a revolving credit facility with aggregate bank commitments of $600 million.
See EXELON CORPORATION — Liquidity and Capital Resources and Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements of this Form 10-K for further discussion.
Capital resources are used primarily to fund PECO’s capital requirements, including construction, retirement of debt, the payment of dividends and contributions to Exelon’s pension plans. Additionally, PECO operates in a rate-regulated environment in which the amount of new investment recovery may be limited and where such recovery takes place over an extended period of time.
Cash Flows from Operating Activities
A discussion of items pertinent to PECO’s cash flows from operating activities is set forth under Cash Flows from Operating Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.

Cash Flows from Investing Activities
A discussion of items pertinent to PECO’s cash flows from investing activities is set forth under Cash Flows from Investing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Cash Flows from Financing Activities
A discussion of items pertinent to PECO’s cash flows from financing activities is set forth under Cash Flows from Financing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Credit Matters
A discussion of credit matters pertinent to PECO is set forth under Credit Matters in “EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Contractual Obligations and Off-Balance Sheet Arrangements
A discussion of PECO’s contractual obligations, commercial commitments and off-balance sheet arrangements is set forth under Contractual Obligations and Off-Balance Sheet Arrangements in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Critical Accounting Policies and Estimates
See All Registrants — Critical Accounting Policies and Estimates above for a discussion of PECO’s critical accounting policies and estimates.
New Accounting Pronouncements
See Note 1 — Significant Accounting Policies of the Combined Notes to Consolidated Financial Statements for information regarding new accounting pronouncements.
ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
PECO
PECO is exposed to market risks associated with credit and interest rates. These risks are described above under Quantitative and Qualitative Disclosures about Market Risk—Exelon.

ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
BGE
General
BGE operates in a single business segment and its operations consist of the purchase and regulated retail sale of electricity and the provision of distribution and transmission services in central Maryland, including the City of Baltimore, and the purchase and regulated retail sale of natural gas and the provision of distribution service in central Maryland, including the City of Baltimore. This segment is discussed in further detail in ITEM 1. BUSINESS—BGE of this Form 10-K.
Executive Overview
A discussion of items pertinent to BGE’s executive overview is set forth under EXELON CORPORATION — Executive Overview of this Form 10-K.
Results of Operations
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016 and Year Ended December 31, 2016 Compared to Year Ended December 31, 2015
A discussion of BGE’s results of operations for 2017 compared to 2016 and for 2016 compared to 2015 is set forth under Results of Operations—BGE in EXELON CORPORATION — Results of Operations of this Form 10-K.
Liquidity and Capital Resources
BGE’s business is capital intensiveAll results included throughout the liquidity and requires considerable capital resources. BGE’s capital resources section are primarilypresented on a GAAP basis.
The Registrants’ operating and capital expenditures requirements are provided by internally generated cash flows from operations, as well as funds from external sources in the capital markets and through bank borrowings. The Registrants’ businesses are capital intensive and require considerable capital resources. Each of the Registrants annually evaluates its financing plan, dividend practices, and credit line sizing, focusing on maintaining its investment grade ratings while meeting its cash needs to fund capital requirements, including construction expenditures, retire debt, pay dividends, and fund pension and OPEB obligations. The Registrants spend a significant amount of cash on capital improvements and construction projects that have a long-term return on investment. Additionally, the extent necessary, external financing, includingUtility Registrants operate in rate-regulated environments in which the issuanceamount of long-term debtnew investment recovery may be delayed or commercial paper. BGE’slimited and where such recovery takes place over an extended period of time. Each Registrant’s access to external financing aton reasonable terms is dependentdepends on its credit ratings and generalcurrent overall capital market business conditions, as well asincluding that of the utility industry in general. If these conditions deteriorate to where BGEthe extent that the Registrants no longer hashave access to the capital markets at reasonable terms, BGE hasthe Registrants have access to a revolving credit facility. At December 31, 2017, BGE had access to a revolving credit facilityfacilities with aggregate bank commitments of $600 million.
$4.0 billion, as of December 31, 2022. The Registrants utilize their credit facilities to support their commercial paper programs, provide for other short-term borrowings, and to issue letters of credit. See EXELON CORPORATION — Liquiditythe “Credit Matters and Capital ResourcesCash Requirements” section below for additional information. The Registrants expect cash flows to be sufficient to meet operating expenses, financing costs, and capital expenditure requirements. See Note 1316 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the Registrants’ debt and credit agreements.
Cash flows related to Generation have not been presented as discontinued operations and are included in the Consolidated Statements of this Form 10-KCash Flows for further discussion.
Capital resources are used primarily to fund BGE’s capital requirements, including construction, retirementall periods presented. The Exelon Consolidated Statement of debt,Cash Flows for the paymentyear ended December 31, 2022 includes one month of dividends and contributions to Exelon’s pension plans. Additionally, BGE operatescash flows from Generation. The Exelon Consolidated Statement of Cash Flows for the year ended December 31, 2021 includes twelve months of cash flows from Generation. This is the primary reason for the changes in a rate-regulated environmentcash flows as shown in which the amount of new investment recovery may be limited and where such recovery takes place over an extended period of time.tables unless otherwise noted below.
Cash Flows from Operating Activities
A discussion of items pertinent to BGE’sThe Utility Registrants' cash flows from operating activities is set forth under Cash Flowsprimarily result from Operating Activitiesthe transmission and distribution of electricity and, in EXELON CORPORATION — Liquiditythe case of PECO, BGE, and Capital ResourcesDPL, gas distribution services. The Utility Registrants' distribution services are provided to an established and diverse base of this Form 10-K.

Cash Flows from Investing Activities
A discussion of items pertinent to BGE’sretail customers. The Utility Registrants' future cash flows may be affected by the economy, weather conditions, future legislative initiatives, future regulatory proceedings with respect to their rates or operations, and their ability to achieve operating cost reductions. Additionally, ComEd is required to purchase CMCs from investing activitiesparticipating nuclear-powered generating facilities for a five-year period, and all of its costs of doing so will be recovered through a new rider. The price to be paid for each CMC is set forth under “Cash Flowsestablished through a competitive bidding process. ComEd will provide net payments to, or collect net payments from, Investing Activities” in EXELON CORPORATION — Liquiditycustomers for the difference between customer credits issued and Capital Resources of this Form 10-K.
Cash Flowsthe credit to be received from Financing Activities
A discussion of items pertinent to BGE’sthe participating nuclear-powered generating facilities. ComEd’s cash flows from financing activities is set forth under “Cash Flows from Financing Activities” in EXELON CORPORATION — Liquidityare affected by the establishment of CMC prices and Capital Resourcesthe timing of this Form 10-K.
Credit Matters
A discussion of credit matters pertinent to BGE is set forth under Credit Matters in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Contractual Obligations and Off-Balance Sheet Arrangements
A discussion of BGE’s contractual obligations, commercial commitments and off-balance sheet arrangements is set forth under Contractual Obligations and Off-Balance Sheet Arrangements in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Critical Accounting Policies and Estimates
See All Registrants — Critical Accounting Policies and Estimates above for a discussion of BGE’s critical accounting policies and estimates.
New Accounting Pronouncementsrecovering costs through the CMC regulatory asset.
See Note 13Significant Accounting PoliciesRegulatory Matters and Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information regarding new accounting pronouncements.on regulatory and legal proceedings and proposed legislation.
77

ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
The following table provides a summary of the change in cash flows from operating activities for the years ended December 31, 2022 and 2021 by Registrant:
BGE
Increase (decrease) in cash flows from operating activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Net income$342 $175 $72 $(28)$47 $$41 $
Adjustments to reconcile net income to cash:
Non-cash operating activities(2,382)(176)124 173 259 93 25 141 
Option premiums paid, net299 — — — — — — — 
Collateral received (posted), net1,322 51 — 16 99 22 35 42 
Income taxes(331)— (25)(37)(18)(30)(13)11 
Pension and non-pension postretirement benefit contributions49 12 — 13 (30)— — (4)
Regulatory assets and liabilities, net(692)(645)(24)(8)(37)12 (43)
Changes in working capital and other noncurrent assets and liabilities3,251 185 (79)(98)(227)(97)(64)(60)
Increase (decrease) in cash flows from operating activities$1,858 $(398)$68 $31 $93 $$33 $89 
BGEChanges in the Registrants' cash flows from operations were generally consistent with changes in each Registrant’s respective results of operations, as adjusted by changes in working capital in the normal course of business, except as discussed below. See above for additional information related to cash flows from Generation. Significant operating cash flow impacts for the Registrants and Generation for 2022 and 2021 were as follows:
See Note 22 —Supplemental Financial Information of the Combined Notes to Consolidated Financial Statements and the Registrants’ Consolidated Statements of Cash Flows for additional information on non-cash operating activities.
Changes in collateral depended upon whether Generation was in a net mark-to-market liability or asset position, and collateral may have been required to be posted with or collected from its counterparties. In addition, the collateral posting and collection requirements differed depending on whether the transactions were on an exchange or in the over-the-counter markets. Changes in collateral for the Utility Registrants are dependent upon the credit exposure of procurement contracts that may require suppliers to post collateral. The amount of cash collateral received from external counterparties increased due to rising energy prices. See Note 15 — Derivative Financial Instruments for additional information.
See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements and the Registrants' Consolidated Statements of Cash Flows for additional information on income taxes.
Changes in regulatory assets and liabilities, net, are due to the timing of cash payments for costs recoverable, or cash receipts for costs recovered, under our regulatory mechanisms differs from the recovery period of those costs. Included within the changes is exposed to market risks associated with creditenergy efficiency spend for ComEd of $394 million and interest rates. These risks are described above under Quantitative$343 million for the years ended December 31, 2022 and Qualitative Disclosures about Market Risk—Exelon.

ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
PHI
General
PHI has three reportable segments2021, respectively. Also included within the changes is energy efficiency and demand response programs spend for BGE, Pepco, DPL, and ACE. Its operations consistACE of the purchase$113 million, $71 million, $28 million, and regulated retail sale of electricity and the provision of distribution and transmission services, and to a lesser extent, the purchase and regulated retail sale and supply of natural gas in Delaware. This segment is discussed in further detail in ITEM 1. BUSINESS — PHI of this Form 10-K.
Executive Overview
A discussion of items pertinent to PHI’s executive overview is set forth under EXELON CORPORATION — Executive Overview of this Form 10-K.
Results of Operations
Successor Period Year Ended December 31, 2017, Successor Period of March 24, 2016 to December 31, 2016 and Predecessor Period of January 1, 2016 to March 23, 2016, Predecessor Period Year Ended December 31, 2015
A discussion of PHI’s results of operations$11 million for 2017 compared to 2016, March 24, 2016 to December 31, 2016 and January 1, 2016 to March 23, 2016, and the year ended December 31, 20152022, respectively, and $107 million, $72 million, $29 million, and $4 million for the year ended December 31, 2021, respectively. PECO had no energy efficiency and demand response programs spend recorded to a regulatory asset for the years ended December 31, 2022 and 2021. See Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
Changes in working capital and other noncurrent assets and liabilities for the Utility Registrants and Exelon Corporate total $(304) million and for Generation total $3,555 million. The change for Generation primarily relates to the revolving accounts receivable financing arrangement. See the Collection of DPP discussion below for additional information. The change in working capital and other noncurrent assets and liabilities for Exelon Corporate and the Utility Registrants is set forth under Resultsdependent upon the normal course of Operations—PHIoperations for all Registrants. For ComEd, it is also
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dependent upon whether the participating nuclear-powered generating facilities owe money to ComEd as a result of the established pricing for CMCs. In 2022, the established pricing resulted in EXELON CORPORATION — Results of Operations of this Form 10-K.
Liquidity and Capital Resources
PHI’s businessa receivable from nuclear-powered generating facilities, which is capital intensive and requires considerable capital resources. PHI’s capital resources are primarily provided by internally generatedreported within the cash flows from operations as a change in accounts receivable. In future periods the established pricing could result in ComEd owing payments to nuclear-powered generating facilities, which would be reported within cash flows from operations as a change in accounts payable and accrued expenses.
Cash Flows from Investing Activities
The following table provides a summary of the change in cash flows from investing activities for the years ended December 31, 2022 and 2021 by Registrant:
Increase (decrease) in cash flows from investing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Capital expenditures$834 $(119)$(109)$(36)$11 $(31)$(1)$47 
Investment in NDT fund sales, net113 — — — — — — — 
Collection of DPP(3,733)— — — — — — — 
Proceeds from sales of assets and businesses(861)— — — — — — — 
Other investing activities(26)(1)(7)(1)— 
(Decrease) increase in cash flows from investing activities$(3,673)$(117)$(110)$(43)$15 $(27)$(2)$47 
Significant investing cash flow impacts for the Registrants for 2022 and 2021 were as follows:
Variances in capital expenditures are primarily due to the extent necessary, external financing, includingtiming of cash expenditures for capital projects. See the issuance of long-term debt or commercial paper, borrowings from"Credit Matters and Cash Requirements" section below for additional information on projected capital expenditure spending for the Exelon money pool or capital contributions from Exelon. PHI’s access to external financing at reasonable terms is dependent on its credit ratings and general business conditions, as well as thatUtility Registrants. See Note 2 — Discontinued Operations of the utility industryCombined Notes to Consolidated Financial Statements for capital expenditures related to Generation prior to the separation.
Collection of DPP relates to Generation's revolving accounts receivable financing agreement which Generation entered into in general.April 2020. Generation received $400 million of additional funding related to the DPP in February and March of 2021.
See EXELON CORPORATION — LiquidityProceeds from sales of assets and Capital Resourcesbusinesses decreased primarily due to the sale of a significant portion of Generation's solar business and a biomass facility in 2021.
Cash Flows from Financing Activities
The following table provides a summary of the change in cash flows from financing activities for the years ended December 31, 2022 and 2021 by Registrant:
(Decrease) increase in cash flows from financing activitiesExelonComEdPECOBGEPHIPepcoDPLACE
Changes in short-term borrowings, net$(513)$900 $239 $148 $(154)$(16)$(37)$(101)
Long-term debt, net2,395 (50)(25)(50)50 40 — 10 
Changes in intercompany money pool— — 40 — 51 — — — 
Issuance of common stock563 — — — — — — — 
Dividends paid on common stock163 (71)(60)(8)— (195)143 
Acquisition of noncontrolling interest885 — — — — — — — 
Distributions to member— — — — (47)— — — 
Contributions from parent/member— (121)(140)29 104 221 27 (144)
Transfer of cash, restricted cash, and cash equivalents to Constellation(2,594)— — — — — — — 
Other financing activities(66)(6)(5)(5)(4)— — 
Increase (decrease) in cash flows from financing activities$833 $663 $48 $114 $(1)$46 $(6)$(92)
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Significant financing cash flow impacts for the Registrants for 2022 and 2021 were as follows:
Changes in short-term borrowings, net, are driven by repayments on and issuances of notes due in less than 365 days. Refer to Note 1316 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on short-term borrowings for the Registrants. These changes also included repayments of this Form 10-K$552 million in commercial paper and term loans by Generation prior to the separation.
Long-term debt, net, varies due to debt issuances and redemptions each year. Refer to the debt issuances and redemptions tables below for further discussion.additional information for the Registrants.
Capital resourcesChanges inintercompany money pool are used primarilydriven by short-term borrowing needs. Refer below for more information regarding the intercompany money pool.
Issuance of common stock relates to fund PHI’s capital requirements, including construction, retirementthe August 2022 underwritten public offering of debt, the payment of dividends and contributions to Exelon’s pension plans. Additionally, PHI operates in a rate-regulated environment in which the amount of new investment recovery may be limited and where such recovery takes place over an extended period of time.
Cash Flows from Operating Activities
A discussion of items pertinent to PHI’s cash flows from operating activities is set forth under Cash Flows from Operating Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.

Cash Flows from Investing Activities
A discussion of items pertinent to PHI’s cash flows from investing activities is set forth under “Cash Flows from Investing Activities” in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Cash Flows from Financing Activities
A discussion of items pertinent to PHI’s cash flows from financing activities is set forth under “Cash Flows from Financing Activities” in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Credit Matters
A discussion of credit matters pertinent to PHI is set forth under Credit Matters in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Contractual Obligations and Off-Balance Sheet Arrangements
A discussion of PHI’s contractual obligations, commercial commitments and off-balance sheet arrangements is set forth under Contractual Obligations and Off-Balance Sheet Arrangements in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Critical Accounting Policies and Estimates
See All Registrants — Critical Accounting Policies and Estimates above for a discussion of PHI’s critical accounting policies and estimates.
New Accounting Pronouncements
Exelon common stock. See Note 119Significant Accounting PoliciesShareholders' Equity of the Combined Notes to Consolidated Financial Statements for information regarding new accounting pronouncements.additional information.
ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
PHI
PHI is exposedExelon’s ability to market risks associated with commodity price, credit and interest rates. These risks are described above under Quantitative and Qualitative Disclosures about Market Risk — Exelon.

ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
Pepco
General
Pepco operatespay dividends on its common stock depends on the receipt of dividends paid by its operating subsidiaries. The payments of dividends to Exelon by its subsidiaries in a single business segment and its operations consist of the purchase and regulated retail sale of electricity and the provision of distribution and transmission services to retail customers in District of Columbia and major portions of Prince George’s County and Montgomery County in Maryland. This segment is discussed in further detail in ITEM 1. BUSINESS — Pepco of this Form 10-K.
Executive Overview
A discussion of items pertinent to Pepco’s executive overview is set forth under EXELON CORPORATION — Executive Overview of this Form 10-K.
Results of Operations
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016 and Year Ended December 31, 2016 Compared to Year Ended December 31, 2015
A discussion of Pepco’sturn depend on their results of operations for 2017 compared to 2016 and for 2016 compared to 2015 is set forth under Results of Operations—Pepco in EXELON CORPORATION — Results of Operations of this Form 10-K.
Liquidity and Capital Resources
Pepco’s business is capital intensive and requires considerable capital resources. Pepco’s capital resources are primarily provided by internally generated cash flows from operations and other items affecting retained earnings. See Note 18 — Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for additional information on dividend restrictions. See below for quarterly dividends declared.
Acquisition of noncontrolling interest relates to Generation's acquisition of CENG noncontrolling interest in 2021.
Refer to Note 2 — Discontinued Operations for the transfer of cash, restricted cash, and cash equivalents to Constellation related to the extent necessary, externalseparation.
Other financing includingactivities primarily consists of debt issuance costs. See debt issuances table below for additional information on the issuanceRegistrants’ debt issuances.
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Debt Issuances and general business conditions, as well as that of the utility industry in general. At December 31, 2017, Pepco had access to a revolving credit facility with aggregate bank commitments of $300 million.Redemptions
See EXELON CORPORATION — Liquidity and Capital Resources and Note 1316 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information of this Form 10-Kthe Registrants’ long-term debt. Debt activity for further discussion.2022 and 2021 by Registrant was as follows:
Capital resourcesDuring 2022, the following long-term debt was issued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonSMBC Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
$300Fund a cash payment to Constellation and for general corporate purposes.
ExelonU.S. Bank Term Loan AgreementSOFR plus 0.65%
July 21, 2023(a)
300Fund a cash payment to Constellation and for general corporate purposes.
ExelonPNC Term Loan AgreementSOFR plus 0.65%
July 24, 2023(a)
250Fund a cash payment to Constellation and for general corporate purposes.
Exelon
Notes(b)
2.75%March 15, 2027650Repay existing indebtedness and for general corporate purposes.
Exelon
Notes(b)
3.35%March 15, 2032650Repay existing indebtedness and for general corporate purposes.
Exelon
Notes(b)
4.10%March 15, 2052700Repay existing indebtedness and for general corporate purposes.
ExelonLong-Term Software License Agreements2.30%December 1, 202517Procurement of software licenses
ExelonLong-Term Software License Agreements3.70%August 9, 20258Procurement of software licenses
ExelonSMBC Term Loan AgreementSOFR plus 0.85%April 7, 2024500Repay existing indebtedness and for general corporate purposes.
ComEd(c)
First Mortgage Bonds, Series 1323.15%March 15, 2032300Repay outstanding commercial paper obligations and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1333.85%March 15, 2052450Repay outstanding commercial paper obligations and to fund other general corporate purposes.
PECOFirst and Refunding Mortgage Bonds4.60%May 15, 2052350Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds4.375%August 15, 2052425Refinance outstanding commercial paper and for general corporate purposes.
BGENotes4.55%June 1, 2052500Repay outstanding commercial paper obligations, repay existing indebtedness, and for general corporate purposes.
PepcoFirst Mortgage Bonds3.97%March 24, 2052400Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.35%September 15, 2032225Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.06%February 15, 2052125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203225Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds3.06%February 15, 2052150Repay existing indebtedness and for general corporate purposes.
__________
(a)During the third quarter of 2022, the SMBC Term Loan, U.S. Bank Term Loan, and PNC Term Loan were all reclassified to Long-term debt due within one year on the Exelon Consolidated Balance Sheet, given that the Term Loans have maturity dates of July 21, 2023 , and July 24, 2023, respectively.
(b)In connection with the issuance and sale of the Notes, Exelon entered into a Registration Rights Agreement with the representatives of the initial purchasers of the Notes and other parties. Pursuant to the Registration Rights Agreement,
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Exelon filed a registration statement on August 3, 2022, with respect to an offer to exchange the Notes for substantially similar notes of Exelon that are used primarilyregistered under the Securities Act. An exchange offer of registered notes for the Notes was completed on January 12, 2023. The registered notes issued in exchange for Notes in the exchange offer have terms identical in all respects to fund Pepco’s capital requirements, including construction, retirementthe Notes, except that their issuance was registered under the Securities Act.
(c)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
During 2021, the following long-term debt was issued:
CompanyTypeInterest RateMaturityAmountUse of Proceeds
ExelonLong-Term Software License Agreements3.62%December 1, 2025$4Procurement of software licenses.
ComEdFirst Mortgage Bonds, Series 1303.13%March 15, 2051700Repay a portion of outstanding commercial paper obligations and two outstanding term loans, and to fund other general corporate purposes.
ComEdFirst Mortgage Bonds, Series 1312.75%September 1, 2051450Refinance existing indebtedness and for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds3.05%March 15, 2051375Funding for general corporate purposes.
PECOFirst and Refunding Mortgage Bonds2.85%September 15, 2051375Refinance existing indebtedness and for general corporate purposes.
BGESenior Notes2.25%June 15, 2031600Repay a portion of outstanding commercial paper obligations, repay existing indebtedness, and to fund other general corporate purposes.
PepcoFirst Mortgage Bonds2.32%March 30, 2031150Repay existing indebtedness and for general corporate purposes.
PepcoFirst Mortgage Bonds3.29%September 28, 2051125Repay existing indebtedness and for general corporate purposes.
DPLFirst Mortgage Bonds3.24%March 30, 2051125Repay existing indebtedness and for general corporate purposes.
ACEFirst Mortgage Bonds2.30%March 15, 2031350Refinance existing indebtedness, repay outstanding commercial paper obligations, and for general corporate purposes.
ACEFirst Mortgage Bonds2.27%February 15, 203275Repay existing indebtedness and for general corporate purposes.

During 2022, the following long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonJunior Subordinated Notes3.50%May 2, 2022$1,150 
ExelonLong-Term Software License Agreement3.96%May 1, 20242
ExelonLong-Term Software License Agreement2.30%December 1, 2025
ExelonLong-Term Software License Agreement3.70%August 9, 2025
PECOFirst Mortgage Bonds2.375%September 15, 2022350 
BGENotes2.80%August 15, 2022250
PepcoFirst Mortgage Bonds3.05%April 1, 2022200
PepcoTax-Exempt Bonds1.70%September 1, 2022110
Additionally, in connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle an intercompany loan that mirrored the terms and contributions to Exelon’s pension plans. Additionally, Pepco operates in rate-regulated environments in whichamounts of the amountthird-party debt obligations. The loan agreements were entered into as part of new investment recovery may be limited and where such recovery takes place over an extended period of time.
Cash Flows from Operating Activities
A discussion of items pertinent to Pepco’s cash flows from operating activities is set forth under Cash Flows from Operating Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.

Cash Flows from Investing Activities
A discussion of items pertinent to Pepco’s cash flows from investing activities is set forth under Cash Flows from Investing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Cash Flows from Financing Activities
A discussion of items pertinent to Pepco’s cash flows from financing activities is set forth under Cash Flows from Financing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Credit Matters
A discussion of credit matters pertinent to Pepco is set forth under Credit Matters in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Contractual Obligations and Off-Balance Sheet Arrangements
A discussion of Pepco’s contractual obligations, commercial commitments and off-balance sheet arrangements is set forth under Contractual Obligations and Off-Balance Sheet Arrangements in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Critical Accounting Policies and Estimates
See All Registrants — Critical Accounting Policies and Estimates above for a discussion of Pepco’s critical accounting policies and estimates.
New Accounting Pronouncements
the 2012 Constellation merger. See Note 1 — Significant Accounting Policies16
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ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Pepco
Pepco is exposed to market risks associated with credit and interest rates. These risks are described above under Quantitative and Qualitative Disclosures about Market Risk— Exelon.

ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
DPL
General
DPL operates in a single business segment and its operations consist of the purchase and regulated retail sale of electricity and the provision of distribution and transmission services in portions of Maryland and Delaware, and the purchase and regulated retail sale and supply of natural gas in New Castle County, Delaware. This segment is discussed in further detail in ITEM 1. BUSINESS — DPL of this Form 10-K.
Executive Overview
A discussion of items pertinent to DPL’s executive overview is set forth under EXELON CORPORATION — Executive Overview of this Form 10-K.
Results of Operations
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016 and Year Ended December 31, 2016 Compared to Year Ended December 31, 2015
A discussion of DPL’s results of operations for 2017 compared to 2016 and for 2016 compared to 2015 is set forth under Results of Operations—DPL in EXELON CORPORATION — Results of Operations of this Form 10-K.
Liquidity and Capital Resources
DPL’s business is capital intensive and requires considerable capital resources. DPL’s capital resources are primarily provided by internally generated cash flows from operations and, to the extent necessary, external financing, including the issuance of long-term debt or commercial paper. DPL’s access to external financing at reasonable terms is dependent on its credit ratings and general business conditions, as well as that of the utility industry in general. If these conditions deteriorate to where DPL no longer has access to the capital markets at reasonable terms, DPL has access to a revolving credit facility. At December 31, 2017, DPL had access to a revolving credit facility with aggregate bank commitments of $300 million.
See EXELON CORPORATION — Liquidity and Capital Resources and Note 13 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the mirror debt.
During 2021, the following long-term debt was retired and/or redeemed:
CompanyTypeInterest RateMaturityAmount
ExelonSenior Notes2.45%April 15, 2021$300 
ExelonLong-Term Software License Agreements3.95%May 1, 202424
ExelonLong-Term Software License Agreements3.62%December 1, 20251
ComEdFirst Mortgage Bonds3.40%September 1, 2021350
PECOFirst Mortgage Bonds1.70%September 15, 2021300
BGESenior Notes3.50%November 15, 2021300
ACEFirst Mortgage Bonds4.35%April 1, 2021200
ACETax-Exempt First Mortgage Bonds6.80%March 1, 202139
ACETransition Bonds5.55%October 20, 202121
From time to time and as market conditions warrant, the Registrants may engage in long-term debt retirements via tender offers, open market repurchases or other viable options to reduce debt on their respective balance sheets.
Dividends
Quarterly dividends declared by the Exelon Board of this Form 10-KDirectors during the year ended December 31, 2022 and for further discussion.the first quarter of 2023 were as follows:
Capital resources are used primarily to
PeriodDeclaration DateShareholder of
Record Date
Dividend Payable Date
Cash per Share(a)
First Quarter 2022February 8, 2022February 25, 2022March 10, 2022$0.3375 
Second Quarter 2022April 26, 2022May 13, 2022June 10, 2022$0.3375 
Third Quarter 2022July 26, 2022August 15, 2022September 9, 2022$0.3375 
Fourth Quarter 2022October 28, 2022November 15, 2022December 9, 2022$0.3375 
First Quarter 2023February 14, 2023February 27, 2023March 10, 2023$0.3600 
___________
(a)Exelon's Board of Directors approved an updated dividend policy for 2023. The 2023 quarterly dividend will be $0.36 per share.
Credit Matters and Cash Requirements
The Registrants fund DPL’sliquidity needs for capital requirements, including construction, retirement of debt, the payment of dividendsexpenditures, working capital, energy hedging, and contributions to Exelon’s pension plans. Additionally, DPL operates in a rate-regulated environment in which the amount of new investment recovery may be limited and where such recovery takes place over an extended period of time.
Cash Flows from Operating Activities
A discussion of items pertinent to DPL’sother financial commitments through cash flows from operating activities is set forth under Cash Flows from Operating Activitiescontinuing operations, public debt offerings, commercial paper markets, and large, diversified credit facilities. The credit facilities include $4.0 billion in EXELON CORPORATION — Liquidityaggregate total commitments of which $2.1 billion was available to support additional commercial paper as of December 31, 2022, and Capital Resources of this Form 10-K.

Cash Flows from Investing Activities
A discussion of items pertinent to DPL’s cash flows from investing activities is set forth under Cash Flows from Investing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Cash Flows from Financing Activities
A discussion of items pertinent to DPL’s cash flows from financing activities is set forth under Cash Flows from Financing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Credit Matters
A discussion of credit matters pertinent to DPL is set forth under Credit Matters in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Contractual Obligations and Off-Balance Sheet Arrangements
A discussion of DPL’s contractual obligations, commercial commitments and off-balance sheet arrangements is set forth under Contractual Obligations and Off-Balance Sheet Arrangements in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Critical Accounting Policies and Estimates
See All Registrants — Critical Accounting Policies and Estimates above for a discussion of DPL’s critical accounting policies and estimates.
New Accounting Pronouncements
See Note 1 — Significant Accounting Policieswhich no financial institution has more than 6% of the Combined Notes to Consolidated Financial Statementsaggregate commitments for information regarding new accounting pronouncements.
ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
DPL
DPL is exposed to market risks associated with commodity price, credit and interest rates. These risks are described above under Quantitative and Qualitative Disclosures about Market Risk—Exelon.

ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
ACE
General
ACE operates in a single business segment and its operations consist of the purchase and regulated retail sale of electricityRegistrants. On February 1, 2022, Exelon Corporate and the provision of distribution and transmission services to retail customers in portions of southern New Jersey. This segment is discussed in further detail in ITEM 1. BUSINESS — ACE of this Form 10-K.
Executive Overview
A discussion of items pertinent to ACE’s executive overview is set forth under EXELON CORPORATION — Executive Overview of this Form 10-K.
Results of Operations
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016 and Year Ended December 31, 2016 Compared to Year Ended December 31, 2015
A discussion of ACE’s results of operations for 2017 compared to 2016 and for 2016 compared to 2015 is set forth under Results of Operations—ACE in EXELON CORPORATION — Results of Operations of this Form 10-K.
Liquidity and Capital Resources
ACE’s business is capital intensive and requires considerable capital resources. ACE’s capital resources are primarily provided by internally generated cash flows from operations and, to the extent necessary, external financing, including the issuance of long-term debt, commercial paper or credit facility borrowings. ACE’s access to external financing at reasonable terms is dependent on its credit ratings and general business conditions, as well as that of the utility industry in general. At December 31, 2017, ACE had access toUtility Registrants each entered into a new 5-year revolving credit facility with aggregate bank commitments of $300 million.
that replaced its existing syndicated revolving credit facility. See EXELON CORPORATION — Liquidity and Capital Resources and Note 1316 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements of this Form 10-K for further discussion.
Capital resources are used primarilyadditional information. The Registrants had access to the commercial paper markets and had availability under their revolving credit facilities during 2022 to fund ACE’stheir short-term liquidity needs, when necessary. The Registrants routinely review the sufficiency of their liquidity position, including appropriate sizing of credit facility commitments, by performing various stress test scenarios, such as commodity price movements, increases in margin-related transactions, changes in hedging levels, and the impacts of hypothetical credit downgrades. The Registrants closely monitor events in the financial markets and the financial institutions associated with the credit facilities, including monitoring credit ratings and outlooks, credit default swap levels, capital requirements, including construction, retirementraising, and merger activity. See PART I, ITEM 1A. RISK FACTORS for additional information regarding the effects of debt,uncertainty in the capital and contributions to Exelon’s pension plans. Additionally, ACE operates in rate-regulated environments in which the amount of new investment recovery may be limited and where such recovery takes place over an extended period of time.credit markets.
Cash Flows from Operating Activities
A discussion of items pertinent to ACE’sThe Registrants believe their cash flowsflow from operating activities, is set forthaccess to credit markets, and their credit facilities provide sufficient liquidity to support the estimated future cash requirements discussed below.
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On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering of 12.995 million shares of its common stock, no par value. The net proceeds were $563 million before expenses paid. Exelon used the proceeds, together with available cash balances, to repay $575 million in borrowings under Cash Flows from Operating Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.

Cash Flows from Investing Activities
A discussion of items pertinent to ACE’s cash flows from investing activities is set forth under Cash Flows from Investing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Cash Flows from Financing Activities
A discussion of items pertinent to ACE’s cash flows from financing activities is set forth under Cash Flows from Financing Activities in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Credit Matters
A discussion ofa $1.15 billion term loan credit matters pertinent to ACE is set forth under Credit Matters in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Contractual Obligations and Off-Balance Sheet Arrangements
A discussion of ACE’s contractual obligations, commercial commitments and off-balance sheet arrangements is set forth under Contractual Obligations and Off-Balance Sheet Arrangements in EXELON CORPORATION — Liquidity and Capital Resources of this Form 10-K.
Critical Accounting Policies and Estimates
See All Registrants — Critical Accounting Policies and Estimates above for a discussion of ACE’s critical accounting policies and estimates.
New Accounting Pronouncements
facility. See Note 119Significant Accounting PoliciesShareholders' Equity and Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information.
On August 4, 2022, Exelon executed an equity distribution agreement (“Equity Distribution Agreement”) with certain sales agents and forward sellers and certain forward purchasers establishing an ATM equity distribution program under which it may offer and sell shares of its common stock, having an aggregate gross sales price of up to $1.0 billion. Exelon has no obligation to offer or sell any shares of common stock under the Equity Distribution Agreement and may at any time suspend or terminate offers and sales under the Equity Distribution Agreement. As of December 31, 2022, Exelon has not issued any shares of common stock under the ATM program and has not entered into any forward sale agreements.
Pursuant to the Separation Agreement between Exelon and Constellation Energy Corporation, Exelon made a cash payment of $1.75 billion to Generation on January 31, 2022. See Note 2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information on the separation.
The following table presents the incremental collateral that each Utility Registrant would have been required to provide in the event each Utility Registrant lost its investment grade credit rating at December 31, 2022 and available credit facility capacity prior to any incremental collateral at December 31, 2022:
PJM Credit Policy Collateral
Other Incremental Collateral Required(a)
Available Credit Facility Capacity Prior to Any Incremental Collateral
ComEd$31 $— $568 
PECO71 361 
BGE119 191 
Pepco— 
DPL15 185 
ACE— 300 
__________
(a)Represents incremental collateral related to natural gas procurement contracts.

Capital Expenditures
As of December 31, 2022, estimates of capital expenditures for plant additions and improvements are as follows:
(in millions)(a)
2023 Transmission2023 Distribution2023 GasTotal 2023
Beyond 2023(b)
ExelonN/AN/AN/A$7,175 $24,100 
ComEd475 2,075 N/A2,550 8,575 
PECO75 975 325 1,375 4,825 
BGE325 525 475 1,325 4,700 
PHI550 1,225 125 1,900 6,000 
Pepco250 650 N/A900 2,825 
DPL175 275 125 575 1,800 
ACE150 300 N/A425 1,400 
___________
(a)Numbers rounded to the nearest $25M and may not sum due to rounding.
(b)Includes estimated capital expenditures for the Utility Registrants from 2024 and 2026.
Projected capital expenditures and other investments are subject to periodic review and revision to reflect changes in economic conditions and other factors. Projected capital expenditures at the Utility Registrants are for continuing projects to maintain and improve operations, including enhancing reliability and adding capacity to the transmission and distribution systems. The Utility Registrants anticipate that they will fund their capital
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expenditures with a combination of internally generated funds and borrowings and additional capital contributions from parent.
Retirement Benefits
Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the Pension Protection Act of 2006 (the Act), management of the pension obligation, and regulatory implications. The Act requires the attainment of certain funding levels to avoid benefit restrictions (such as an inability to pay lump sums or to accrue benefits prospectively), and at-risk status (which triggers higher minimum contribution requirements and participant notification). The projected contributions below reflect a funding strategy to make annual contributions with the objective of achieving 100% funded status on an ABO basis over time. This funding strategy helps minimize volatility of future period required pension contributions. Exelon’s estimated annual qualified pension contributions will be $20 million in 2023. Unlike the qualified pension plans, Exelon’s non-qualified pension plans are not funded, given that they are not subject to statutory minimum contribution requirements.
While OPEB plans are also not subject to statutory minimum contribution requirements, Exelon does fund certain of its plans. For Exelon's funded OPEB plans, contributions generally equal accounting costs, however, Exelon’s management has historically considered several factors in determining the level of contributions to its OPEB plans, including liabilities management, levels of benefit claims paid, and regulatory implications (amounts deemed prudent to meet regulatory expectations and best assure continued rate recovery). The amounts below include benefit payments related to unfunded plans.
The following table provides all Registrants' planned contributions to the qualified pension plans, planned benefit payments to non-qualified pension plans, and planned contributions to OPEB plans in 2023:
Qualified Pension PlansNon-Qualified Pension PlansOPEB
Exelon$20 $48 $47 
ComEd20 19 
PECO— — 
BGE— 15 
PHI— 11 
Pepco— 11 
DPL— — — 
ACE— — — 
To the extent interest rates decline significantly or the pension and OPEB plans earn less than the expected asset returns, annual pension contribution requirements in future years could increase. Conversely, to the extent interest rates increase significantly or the pension and OPEB plans earn greater than the expected asset returns, annual pension and OPEB contribution requirements in future years could decrease. Additionally, expected contributions could change if Exelon changes its pension or OPEB funding strategy.
See Note 14 — Retirement Benefits of the Combined Notes to Consolidated Financial Statements for additional information on pension and OPEB contributions.
Cash Requirements for Other Financial Commitments
The following tables summarize the Registrants' future estimated cash payments as of December 31, 2022 under existing financial commitments:
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Exelon
2023Beyond 2023TotalTime Period
Long-term debt(a)
$1,788 $35,289 $37,077 2023 - 2053
Interest payments on long-term debt(b)
1,476 23,645 25,121 2023 - 2052
Operating leases(c)
52 327 379 2023 - 2106
Fuel purchase agreements(d)
321 1,076 1,397 2023 - 2038
Electric supply procurement4,041 2,407 6,448 2023 - 2026
Long-term renewable energy and REC commitments348 1,483 1,831 2023 - 2038
Other purchase obligations(c)(e)
4,816 3,070 7,886 2023 - 2032
DC PLUG obligation34 37 2023 - 2024
ZEC commitments99 676 775 2023 - 2027
Pension contributions(f)
20 704 724 2023 - 2028
Total cash requirements$12,995 $68,680 $81,675 
__________
(a)Includes amounts from ComEd and PECO financing trusts.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022. Includes estimated interest payments due to ComEd and PECO financing trusts.
(c)These amounts exclude payments and obligations related to the Baltimore City Conduit system lease. In January 2023, BGE signed an agreement to extend its use of the Baltimore City Conduit system through December 2026. Over the term of the new agreement, BGE has committed to pay the City of Baltimore approximately $19 million and also incur $120 million of capital improvements to the Conduit system. However, the agreement is still pending approval by Baltimore City which is expected to occur in the first quarter of 2023. Once approved, the agreement would be effective immediately.
(d)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(e)Represents the future estimated value at December 31, 2022 of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between the Registrants or subsidiary and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
(f)These amounts represent Exelon’s expected contributions to its qualified pension plans. Qualified pension contributions for years after 2028 are not included.
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ComEd
2023Beyond 2023TotalTime Period
Long-term debt(a)
$— $10,835 $10,835 2023 - 2053
Interest payments on long-term debt(b)
421 7,640 8,061 2023 - 2052
Operating leases— 2023 - 2026
Electric supply procurement955 450 1,405 2023 - 2025
Long-term renewable energy and REC commitments318 1,299 1,617 2023 - 2038
Other purchase obligations(c)
1,124 488 1,612 2023 - 2032
ZEC commitments99 676 775 2023 - 2027
Total cash requirements$2,919 $21,388 $24,307 
__________
(a)Includes amounts from ComEd financing trust.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Includes estimated interest payments due to the ComEd financing trust.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between ComEd and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

PECO
2023Beyond 2023TotalTime Period
Long-term debt(a)
$50 $4,809 $4,859 2023 - 2052
Interest payments on long-term debt(b)
194 4,053 4,247 2023 - 2052
Operating leases— 2023 - 2034
Fuel purchase agreements(c)
172 307 479 2023 - 2029
Electric supply procurement767 313 1,080 2023 - 2024
Other purchase obligations(d)
835 593 1,428 2023 - 2030
Total cash requirements$2,018 $10,076 $12,094 
__________
(a)Includes amounts from PECO financing trusts.
(b)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Includes estimated interest payments due to the PECO financing trusts.
(c)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(d)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between PECO and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
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BGE
2023Beyond 2023TotalTime Period
Long-term debt$300 $3,950 $4,250 2023 - 2052
Interest payments on long-term debt(a)
151 2,836 2,987 2023 - 2052
Operating leases(b)
18 19 2023 - 2106
Fuel purchase agreements(c)
116 573 689 2023 - 2038
Electric supply procurement1,003 755 1,758 2023 - 2025
Other purchase obligations(b)(d)
966 299 1,265 2023 - 2028
Total cash requirements$2,537 $8,431 $10,968 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)These amounts exclude payments and obligations related to the Baltimore City Conduit system lease. In January 2023, BGE signed an agreement to extend its use of the Baltimore City Conduit system through December 2026. Over the term of the new agreement, BGE has committed to pay the City of Baltimore approximately $19 million and also incur $120 million of capital improvements to the Conduit system. However, the agreement is still pending approval by Baltimore City which is expected to occur in the first quarter of 2023. Once approved, the agreement would be effective immediately.
(c)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(d)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between BGE and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

PHI
2023Beyond 2023TotalTime Period
Long-term debt$577 $7,042 $7,619 2023 - 2052
Interest payments on long-term debt(a)
314 4,438 4,752 2023 - 2052
Finance leases14 68 82 2023 - 2030
Operating leases37 195 232 2023 - 2032
Fuel purchase agreements(b)
33 196 229 2023 - 2028
Electric supply procurement1,316 889 2,205 2023 - 2026
Long-term renewable energy and REC commitments30 184 214 2023 - 2033
Other purchase obligations(c)
1,335 710 2,045 2023 - 2031
DC PLUG obligation34 37 2023 - 2024
Total cash requirements$3,690 $13,725 $17,415 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022.
(b)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between Pepco, DPL, ACE, and PHISCO and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
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Pepco
2023Beyond 2023TotalTime Period
Long-term debt$— $3,773 $3,773 2023 - 2052
Interest payments on long-term debt(a)
170 2,659 2,829 2023 - 2052
Finance leases23 28 2023 - 2030
Operating leases41 48 2023 - 2032
Electric supply procurement597 453 1,050 2023 - 2026
Other purchase obligations(b)
696 334 1,030 2023 - 2027
DC PLUG obligation34 37 2023 - 2024
Total cash requirements$1,509 $7,286 $8,795 
__________ 
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between Pepco and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.

DPL
2023Beyond 2023TotalTime Period
Long-term debt$578 $1,337 $1,915 2023 - 2052
Interest payments on long-term debt(a)
68 1,061 1,129 2023 - 2052
Finance leases28 34 2023 - 2030
Operating leases10 52 62 2023 - 2032
Fuel purchase agreements(b)
33 196 229 2023 - 2028
Electric supply procurement358 220 578 2023 - 2025
Long-term renewable energy and REC commitments30 184 214 2023 - 2033
Other purchase obligations(c)
270 158 428 2023 - 2031
Total cash requirements$1,353 $3,236 $4,589 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances. Variable rate interest obligations are estimated based on rates as of December 31, 2022.
(b)Represents commitments to purchase natural gas and related transportation, storage capacity, and services.
(c)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between DPL and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
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ACE
2023Beyond 2023TotalTime Period
Long-term debt$— $1,747 $1,747 2023 - 2052
Interest payments on long-term debt(a)
62 598 660 2023 - 2052
Finance leases17 20 2023 - 2030
Operating leases11 2023 - 2028
Electric supply procurement361 216 577 2023 - 2025
Other purchase obligations(b)
323 168 491 2023 - 2027
Total cash requirements$753 $2,753 $3,506 
__________
(a)Interest payments are estimated based on final maturity dates of debt securities outstanding as of December 31, 2022 and do not reflect anticipated future refinancing, early redemptions, or debt issuances.
(b)Represents the future estimated value, as of December 31, 2022, of the cash flows associated with all contracts, both cancellable and non-cancellable, entered into between ACE and third-parties for the provision of services and materials, entered into in the normal course of business not specifically reflected elsewhere in this table. These estimates are subject to significant variability from period to period.
See Note 18 — Commitments and Contingencies and Note 3 — Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information of the Registrants’ other commitments potentially triggered by future events. Additionally, see below for where to find additional information regarding new accounting pronouncements.
the financial commitments in the tables above in the Combined Notes to the Consolidated Financial Statements:
ItemLocation within Notes to the Consolidated Financial Statements
Long-term debtNote 16 — Debt and Credit Agreements
Interest payments on long-term debtNote 16 — Debt and Credit Agreements
Finance leasesNote 10 — Leases
Operating leasesNote 10 — Leases
REC commitmentsNote 3 — Regulatory Matters
ZEC commitmentsNote 3 — Regulatory Matters
DC PLUG obligationNote 3 — Regulatory Matters
Pension contributionsNote 14 — Retirement Benefits
Credit Facilities
Exelon Corporate, ComEd, and BGE meet their short-term liquidity requirements primarily through the issuance of commercial paper. PECO meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the Exelon intercompany money pool. Pepco, DPL, and ACE meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the PHI intercompany money pool. PHI Corporate meets its short-term liquidity requirements primarily through the issuance of short-term notes and the Exelon intercompany money pool. The Registrants may use their respective credit facilities for general corporate purposes, including meeting short-term funding requirements and the issuance of letters of credit.
See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information on the Registrants’ credit facilities and short term borrowing activity.
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Capital Structure
As of December 31, 2022, the capital structures of the Registrants consisted of the following:
Exelon(a)
ComEdPECOBGEPHIPepcoDPLACE
Long-term debt57 %43 %44 %44 %41 %48 %48 %50 %
Long-term debt to affiliates(b)
%%%— %— %— %— %— %
Common equity38 %54 %52 %52 %— %48 %49 %50 %
Member’s equity— %— %— %— %57 %— %— %— %
Commercial paper and notes payable%%%%%%%— %
__________ 
(a)As of December 31, 2021, Exelon's Long-term debt and Common equity capital structure percentages were 50% and 45%, respectively. The change in capital structure percentages above is a result of a decrease in common equity due to the separation of Constellation in addition to an increase in long-term debt issuances. See Note 2 — Discontinued Operations for additional information regarding the separation.
(b)Includes approximately $390 million, $205 million, and $184 million owed to unconsolidated affiliates of Exelon, ComEd, and PECO respectively. These special purpose entities were created for the sole purposes of issuing mandatory redeemable trust preferred securities of ComEd and PECO.
Security Ratings
The Registrants’ access to the capital markets, including the commercial paper market, and their respective financing costs in those markets, may depend on the securities ratings of the entity that is accessing the capital markets.
The Registrants’ borrowings are not subject to default or prepayment as a result of a downgrading of securities, although such a downgrading of a Registrant’s securities could increase fees and interest charges under that Registrant’s credit agreements.
As part of the normal course of business, the Registrants enter into contracts that contain express provisions or otherwise permit the Registrants and their counterparties to demand adequate assurance of future performance when there are reasonable grounds for doing so. In accordance with the contracts and applicable contracts law, if the Registrants are downgraded by a credit rating agency, it is possible that a counterparty would attempt to rely on such a downgrade as a basis for making a demand for adequate assurance of future performance, which could include the posting of additional collateral. See Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information on collateral provisions.
The credit ratings for ComEd, PECO, BGE, and DPL did not change for the year ended December 31, 2022. On January 14, 2022, Fitch lowered Exelon Corporate's long-term and senior unsecured ratings from BBB+ to BBB and affirmed the short-term rating of F2. In addition, Fitch upgraded Pepco, ACE, and PHI's long-term rating from BBB to BBB+ and upgraded Pepco and ACE's senior secured rating from A- to A.
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Intercompany Money Pool
To provide an additional short-term borrowing option that will generally be more favorable to the borrowing participants than the cost of external financing, both Exelon and PHI operate an intercompany money pool. Maximum amounts contributed to and borrowed from the money pool by participant and the net contribution or borrowing as of December 31, 2022, are presented in the following tables. ACE did not have any intercompany money pool activity as of December 31, 2022.
For the Year Ended December 31, 2022As of December 31, 2022
Exelon Intercompany Money PoolMaximum ContributedMaximum BorrowedContributed (Borrowed)
Exelon Corporate$396 $— $182 
PECO138 (105)— 
BSC— (380)(183)
PHI Corporate— (54)(44)
PCI50 — 45 
For the Year Ended December 31, 2022As of December 31, 2022
PHI Intercompany Money PoolMaximum ContributedMaximum BorrowedContributed (Borrowed)
Pepco$— $(108)$— 
DPL108 — — 
Shelf Registration Statements
Exelon and the Utility Registrants have a currently effective combined shelf registration statement, unlimited in amount, filed with the SEC on August 3, 2022, that will expire in August 2025. The ability of each Registrant to sell securities off the shelf registration statement or to access the private placement markets will depend on a number of factors at the time of the proposed sale, including other required regulatory approvals, as applicable, the current financial condition of the Registrant, its securities ratings and market conditions.
Regulatory Authorizations
The Utility Registrants are required to obtain short-term and long-term financing authority from Federal and State Commissions as follows:
As of December 31, 2022
Short-term Financing AuthorityRemaining Long-term Financing Authority
CommissionExpiration DateAmountCommissionExpiration DateAmount
ComEd(a)
FERCDecember 31, 2023$2,500 ICCJanuary 1, 2025$1,343 
PECO(b)
FERCDecember 31, 20231,500 PAPUCDecember 31, 20241,125 
BGE(c)
FERCDecember 31, 2023700 MDPSCN/A— 
Pepco(d)
FERCDecember 31, 2023500 MDPSC / DCPSC2022 & 20251,400 
DPL(e)
FERCDecember 31, 2023500 MDPSC / DEPSCDecember 31, 20251,200 
ACE(f)
NJBPUDecember 31, 2023350 NJBPUDecember 31, 2024700 
__________
(a)On November 18, 2021, ComEd received approval from the ICC for $2 billion in new money long-term debt financing authority with an effective date of January 1, 2022.
(b)On December 2, 2021, PECO received approval from the PAPUC for $2.5 billion in new long-term debt financing authority with an effective date of January 1, 2022.
(c)On December 21, 2022, BGE received approval from the MDPSC for $1.8 billion in new long-term financing authority with an effective date of January 4, 2023.
(d)On June 9, 2022 and June 30, 2022, Pepco received approval from the MDPSC and DCPSC, respectively, for $1.4 billion in new long-term financing authority. The long-term financing authority became effective on the date of respective approvals and has an expiration date of December 31, 2025.
(e)On November 2, 2022, DPL filed with the MDPSC and DEPSC for approval of $1.2 billion in new long-term financing authority with an effective date of December 14, 2022. The financing authority filed with MDPSC does not have an expiration date, while the financing authority filed with DEPSC has an expiration date of December 31, 2025.
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(f)On July 13, 2022, ACE received approval from the NJBPU for $700 million in new long-term debt financing authority with an effective date of July 20, 2022.

ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
ACEThe Registrants hold commodity and financial instruments that are exposed to the following market risks:
ACECommodity price risk, which is discussed further below.
Counterparty credit risk associated with non-performance by counterparties on executed derivative instruments and participation in all, or some of the established, wholesale spot energy markets that are administered by PJM. The credit policies of PJM may, under certain circumstances, require that losses arising from the default of one member on spot energy market transactions be shared by the remaining participants. See Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for a detailed discussion of counterparty credit risk related to derivative instruments.
Equity price and interest rate risk associated with Exelon’s pension and OPEB plan trusts. See Note 14 — Retirement Benefits of the 2021 Recast Form 10-K for additional information.
Interest rate risk associated with changes in interest rates for the Registrants’ outstanding long-term debt. This risk is significantly reduced as substantially all of the Registrants’ outstanding debt has fixed interest rates. There is inherent interest rate risk related to refinancing maturing debt by issuing new long-term debt. The Registrants use a combination of fixed-rate and variable-rate debt to manage interest rate exposure. See Note 16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information. In addition, Exelon Corporate may utilize interest rate derivatives to lock in rate levels in anticipation of future financings, which are typically designated as cash flow hedges, or to lock in rate levels on borrowings, which are typically designated as economic hedges. See Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information.
Electric operating revenues risk associated with ComEd's distribution formula rate. ComEd's ROE for its electric distribution service through 2023 is directly correlated to yields on U.S. Treasury bonds. Exelon Corporate may utilize interest rate derivatives to mitigate volatility and manage risk to Exelon, which are typically accounted for as economic hedges. See Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements for additional information.
The Registrants operate primarily under cost-based rate regulation limiting exposure to the effects of market risk. Hedging programs are utilized to reduce exposure to energy and natural gas price volatility and have no direct earnings impacts as the costs are fully recovered through regulatory-approved recovery mechanisms.
Exelon manages these risks through risk management policies and objectives for risk assessment, control and valuation, counterparty credit approval, and the monitoring and reporting of risk exposures. Risk management issues are reported to Exelon’s Board of Directors, Exelon's Audit and Risk Committee, and/or the applicable Utility Board Registrant. The Registrants do not execute derivatives for speculative or proprietary trading purposes.
Commodity Price Risk (All Registrants)
Commodity price risk is associated with price movements resulting from changes in supply and demand, fuel costs, market liquidity, weather conditions, governmental regulatory and environmental policies, and other factors. To the extent the total amount of energy Exelon purchases differs from the amount of energy it has contracted to sell, Exelon is exposed to market risksfluctuations in commodity prices. Exelon seeks to mitigate its commodity price risk through the sale and purchase of electricity and natural gas.
ComEd entered into 20-year floating-to-fixed renewable energy swap contracts beginning in June 2012, which are considered an economic hedge and have changes in fair value recorded to an offsetting regulatory asset or liability. ComEd has block energy contracts to procure electric supply that are executed through a competitive
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procurement process, which are considered derivatives and qualify for NPNS, and as a result are accounted for on an accrual basis of accounting. PECO, BGE, Pepco, DPL, and ACE have contracts to procure electric supply that are executed through a competitive procurement process. BGE, Pepco, DPL, and ACE have certain full requirements contracts, which are considered derivatives and qualify for NPNS, and as a result are accounted for on an accrual basis of accounting. Other full requirements contracts are not derivatives.
PECO, BGE, and DPL also have executed derivative natural gas contracts, which qualify for NPNS, to hedge their long-term price risk in the natural gas market. The hedging programs for natural gas procurement have no direct impact on their financial statements.
For additional information on these contracts, see Note 3 — Regulatory Matters and Note 15 — Derivative Financial Instruments of the Combined Notes to Consolidated Financial Statements.
The following table presents maturity and source of fair value for Exelon's and ComEd's mark-to-market commodity contract liabilities. The table provides two fundamental pieces of information. First, the table provides the source of fair value used in determining the carrying amount of Exelon's and ComEd's total mark-to-market liabilities. Second, the table shows the maturity, by year, of Exelon's and ComEd's commodity contract liabilities giving an indication of when these mark-to-market amounts will settle and require cash. See Note 17 — Fair Value of Financial Assets and Liabilities of the Combined Notes to Consolidated Financial Statements for additional information regarding fair value measurements and the fair value hierarchy.
Maturities WithinTotal Fair
Value
Commodity derivative contracts(a):
202320242025202620272028 and Beyond
Prices based on model or other valuation methods (Level 3)$(5)$(8)$(11)$(12)$(13)$(35)$(84)
_________
(a)Represents ComEd's net liabilities associated with credit and interest rates. These risks are described above under Quantitative and Qualitative Disclosures about Market Risk— Exelon.

the floating-to-fixed energy swap contracts with unaffiliated suppliers.
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ITEM 8.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
Management’s Report on Internal Control Over Financial Reporting
The management of Exelon Corporation (Exelon) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
Exelon’s management conducted an assessment of the effectiveness of Exelon’s internal control over financial reporting as of December 31, 2017.2022. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, Exelon’s management concluded that, as of December 31, 2017,2022, Exelon’s internal control over financial reporting was effective.
The effectiveness of Exelon’s internal control over financial reporting as of December 31, 2017,2022, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears herein.
February 14, 2023
February 9, 2018
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Management’s Report on Internal Control Over Financial Reporting
The management of Exelon Generation Company, LLC (Generation) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
Generation’s management conducted an assessment of the effectiveness of Generation’s internal control over financial reporting as of December 31, 2017. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, Generation’s management concluded that, as of December 31, 2017, Generation’s internal control over financial reporting was effective.
The effectiveness of Generation’s internal control over financial reporting as of December 31, 2017, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears herein.
February 9, 2018

Management’s Report on Internal Control Over Financial Reporting
The management of Commonwealth Edison Company (ComEd) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
ComEd’s management conducted an assessment of the effectiveness of ComEd’s internal control over financial reporting as of December 31, 2017.2022. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, ComEd’s management concluded that, as of December 31, 2017,2022, ComEd’s internal control over financial reporting was effective.
The effectiveness of ComEd’s internal control over financial reporting as of December 31, 2017, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears herein.
February 9, 201814, 2023

96

Management’s Report on Internal Control Over Financial Reporting
The management of PECO Energy Company (PECO) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
PECO’s management conducted an assessment of the effectiveness of PECO’s internal control over financial reporting as of December 31, 2017.2022. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, PECO’s management concluded that, as of December 31, 2017,2022, PECO’s internal control over financial reporting was effective.
The effectiveness of PECO’s internal control over financial reporting as of December 31, 2017, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears herein.
February 9, 201814, 2023

97

Management’s Report on Internal Control Over Financial Reporting
The management of Baltimore Gas and Electric Company (BGE) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
BGE’s management conducted an assessment of the effectiveness of BGE’s internal control over financial reporting as of December 31, 2017.2022. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, BGE’s management concluded that, as of December 31, 2017,2022, BGE’s internal control over financial reporting was effective.
The effectiveness of BGE’s internal control over financial reporting as of December 31, 2017, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears herein.
February 9, 201814, 2023

98

Management’s Report on Internal Control Over Financial Reporting
 
The management of Pepco Holdings LLC (PHI) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
 
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
 
PHI’s management conducted an assessment of the effectiveness of PHI’s internal control over financial reporting as of December 31, 2017.2022. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, PHI’s management concluded that, as of December 31, 2017,2022, PHI’s internal control over financial reporting was effective.
The effectiveness of PHI’s internal control over financial reporting as of December 31, 2017, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears herein.
 
February 9, 201814, 2023



99

Management’s Report on Internal Control Over Financial Reporting
The management of Potomac Electric Power Company (Pepco) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
Pepco’s management conducted an assessment of the effectiveness of Pepco’s internal control over financial reporting as of December 31, 2017.2022. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, Pepco’s management concluded that, as of December 31, 2017,2022, Pepco’s internal control over financial reporting was effective.
February 9, 201814, 2023





100

Management’s Report on Internal Control Over Financial Reporting
The management of Delmarva Power & Light Company (DPL) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
DPL’s management conducted an assessment of the effectiveness of DPL’s internal control over financial reporting as of December 31, 2017.2022. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, DPL’s management concluded that, as of December 31, 2017,2022, DPL’s internal control over financial reporting was effective.
February 9, 201814, 2023





101

Management’s Report on Internal Control Over Financial Reporting
The management of Atlantic City Electric Company (ACE) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
ACE’s management conducted an assessment of the effectiveness of ACE’s internal control over financial reporting as of December 31, 2017.2022. In making this assessment, management used the criteria in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, ACE’s management concluded that, as of December 31, 2017,2022, ACE’s internal control over financial reporting was effective.
February 9, 201814, 2023





102

Report of Independent Registered Public Accounting Firm
To theBoard of Directors and Shareholders of Exelon Corporation


Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the consolidated financial statements, including the related notes, of Exelon Corporation and its subsidiaries (the “Company”) as listed in the index appearing under Item 15(a)(1)(i), and the financial statement schedules listed in the index appearing under Item 15(a)(2)(1)(ii), of Exelon Corporation and its subsidiaries (collectively referred to as the “consolidated financial statements”).We also have audited the Company's internal control over financial reporting as of December 31, 2017,2022, based on criteria established in Internal Control - Integrated Framework(2013)issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidatedfinancial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 20172022 and 2016, 2021, and the results of theirits operations and theirits cash flows for each of the three years in the period ended December 31, 20172022 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017,2022, based on criteria established in Internal Control - Integrated Framework(2013)issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8. Our responsibility is to express opinions on the Company’s consolidatedfinancial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB")(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidatedfinancial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidatedfinancial statements included performing procedures to assess the risks of material misstatement of the consolidatedfinancial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidatedfinancial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidatedfinancial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.


Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

103

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Accounting for the Effects of Rate Regulation
As described in Notes 1 and 3 to the consolidated financial statements, the Company applies the authoritative guidance for accounting for certain types of regulation, which requires management to record in the consolidated financial statements the effects of cost-based rate regulation for entities with regulated operations that meet the following criteria, (i) rates are established or approved by a third-party regulator; (ii) rates are designed to recover the entity’s cost of providing services or products; and (iii) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. The Company accounts for its regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction under state public utility laws and the FERC under various Federal laws. Upon updates in material regulatory and legislative proceedings, where applicable, management will record new regulatory assets or liabilities and will assess whether it is probable that its currently recorded regulatory assets and liabilities will be recovered and settled, respectively, in future rates. As of December 31, 2022, there were $9.7 billion of regulatory assets and $9.5 billion of regulatory liabilities.
The principal considerations for our determination that performing procedures relating to the Company’s accounting for the effects of rate regulation is a critical audit matter are the high degree of audit effort to assess the impact of regulation on accounting for regulatory assets and liabilities and to evaluate the complex audit evidence related to whether the regulatory assets and liabilities will be recovered and settled.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to accounting for regulatory matters and evaluation of new and existing regulatory assets and liabilities. These procedures also included, among others, obtaining the Company’s correspondence with regulators, evaluating the reasonableness of management’s interpretation of regulatory guidance and proceedings and the related accounting implications, and recalculating regulatory assets and liabilities based on provisions outlined in rate orders and other correspondence with regulators.

/s/ PricewaterhouseCoopers LLP
Chicago, Illinois
February 9, 201814, 2023

We have served as the Company’s auditor since 2000.





104


Report of Independent Registered Public Accounting Firm


To theBoard of Directors and MemberShareholders of Exelon GenerationCommonwealth Edison Company LLC


OpinionsOpinion on the Financial Statements and Internal Control over Financial Reporting

We have audited the consolidated financial statements, including the related notes, of Commonwealth Edison Company and its subsidiaries (the “Company”) as listed in the index appearing under Item 15(a)(1)(2)(i), and the financial statement schedule listed in the index appearing under Item 15(a)(2), of Exelon Generation Company, LLC and its subsidiaries (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  

In our opinion, the consolidatedfinancial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of theiroperations and theircash flows for each of the three years in the period ended December 31, 2017 in conformity with accounting principles generally accepted in the United States of America.  Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8.  Our responsibility is to express opinions on the Company’s consolidatedfinancial statements and on the Company's internal control over financial reporting based on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidatedfinancial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.  

Our audits of the consolidatedfinancial statements included performing procedures to assess the risks of material misstatement of the consolidatedfinancial statements, whether due to error or fraud, and performing procedures that respond to those risks.  Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidatedfinancial statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidatedfinancial statements.  Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.  Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.


Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP
Baltimore, Maryland
February 9, 2018

We have served as the Company’s auditor since 2001.



Report of Independent Registered Public Accounting Firm

To theBoard of Directors and Shareholders of Commonwealth Edison Company

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the consolidated financial statements, including the related notes, as listed in the index appearing under Item 15(a)(1), and the financial statement schedule listed in the index appearing under Item 15(a)(2), of Commonwealth Edison Company and its subsidiaries (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  

In our opinion, the consolidatedfinancial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of theiroperations and theircash flows for each of the three years in the period ended December 31, 2017 in conformity with accounting principles generally accepted in the United States of America.  Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8.  Our responsibility is to express opinions on the Company’s consolidatedfinancial statements and on the Company's internal control over financial reporting based on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidatedfinancial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.  

Our audits of the consolidatedfinancial statements included performing procedures to assess the risks of material misstatement of the consolidatedfinancial statements, whether due to error or fraud, and performing procedures that respond to those risks.  Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidatedfinancial statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidatedfinancial statements.  Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.  Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.



Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP
Chicago, Illinois
February 9, 2018

We have served as the Company’s auditor since 2000.



Report of Independent Registered Public Accounting Firm

To theBoard of Directors and Shareholder of PECO Energy Company

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the consolidated financial statements, including the related notes, as listed in the index appearing under Item 15(a)(1), and the financial statement schedule listed in the index appearing under Item 15(a)(2), of PECO Energy Company and its subsidiaries (collectively referred to as the “consolidated financial statements”).We also have audited the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  

In our opinion, the consolidatedfinancial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of theiroperations and theircash flows for each of the three years in the period ended December 31, 2017 in conformity with accounting principles generally accepted in the United States of America.  Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8.  Our responsibility is to express opinions on the Company’s consolidatedfinancial statements and on the Company's internal control over financial reporting based on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidatedfinancial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.  

Our audits of the consolidatedfinancial statements included performing procedures to assess the risks of material misstatement of the consolidatedfinancial statements, whether due to error or fraud, and performing procedures that respond to those risks.  Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidatedfinancial statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidatedfinancial statements.  Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.  Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.



Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 9, 2018

We have served as the Company’s auditor since 1932.



Report of Independent Registered Public Accounting Firm

To theBoard of Directors and Shareholder of Baltimore Gas and Electric Company

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the consolidated financial statements, including the related notes, as listed in the index appearing under Item 15(a)(1), and the financial statement schedule listed in the index appearing under Item 15(a)(2), of Baltimore Gas and Electric Company and its subsidiaries (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  

In our opinion, the consolidatedfinancial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of theiroperations and theircash flows for each of the three years in the period ended December 31, 2017 in conformity with accounting principles generally accepted in the United States of America.  Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8. Our responsibility is to express opinions on the Company’s consolidatedfinancial statements and on the Company's internal control over financial reporting based on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidatedfinancial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.  

Our audits of the consolidatedfinancial statements included performing procedures to assess the risks of material misstatement of the consolidatedfinancial statements, whether due to error or fraud, and performing procedures that respond to those risks.  Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidatedfinancial statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidatedfinancial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.  Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.


Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP
Baltimore, Maryland
February 9, 2018

We have served as the Company’s auditor since at least 1993. We have not determined the specific year we began serving as auditor of the Company.



Report of Independent Registered Public Accounting Firm

To theBoard of Directors and Member of Pepco Holdings LLC

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the consolidated financial statements, including the related notes, as listed in the index appearing under Item 15(a)(1), and the financial statement schedule listed in the index appearing under Item 15(a)(2), of Pepco Holdings LLC and its subsidiaries (Successor) (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  

In our opinion, the consolidatedfinancial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of theiroperations and theircash flows for the year ended December 31, 2017, for the period from March 24, 2016 to December 31, 2016 in conformity with accounting principles generally accepted in the United States of America.  Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework(2013)issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8.  Our responsibility is to express opinions on the Company’s consolidatedfinancial statements and on the Company's internal control over financial reporting based on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidatedfinancial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.  

Our audits of the consolidatedfinancial statements included performing procedures to assess the risks of material misstatement of the consolidatedfinancial statements, whether due to error or fraud, and performing procedures that respond to those risks.  Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidatedfinancial statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidatedfinancial statements.  Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.  Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.



Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP
Washington, D.C.
February 9, 2018

We have served as the Company’s auditor since 2001.


























Report of Independent Registered Public Accounting Firm

To the Board of Directors and Member of Pepco Holdings LLC
In our opinion, the financial statements listed in the index appearing under Item 15(a)(1) present fairly, in all material respects, the results of operations and the cash flows of Pepco Holdings LLC and its subsidiaries (formerly Pepco Holdings, Inc.) (Predecessor) for the period January 1, 2016 to March 23, 2016 and for the year ended December 31, 2015 in conformity with accounting principles generally accepted in the United States of America.  In addition, in our opinion, the financial statement schedule listed in the index appearing under Item 15(a)(2) presents fairly, in all material respects, the information set forth therein when read in conjunction with the related financial statements. These financial statements and financial statement schedule are the responsibility of the Company's management.  Our responsibility is to express an opinion on these financial statements and financial statement schedule based on our audits.  We conducted our audits of these financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States).  Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement.  An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation.  We believe that our audits provide a reasonable basis for our opinion.

As discussed in Note 1 to the financial statements, the Company changed the manner in which it accounts for interest on uncertain tax positions in 2016.

/s/ PricewaterhouseCoopers LLP
Washington, D.C.
February 13, 2017



Report of Independent Registered Public Accounting Firm

Tothe Board of Directors and Shareholder of Potomac Electric Power Company

Opinion on the Financial Statements

We have audited the financial statements, including the related notes, as listed in the index appearing under Item 15(a)(1), and the financial statement schedule listed in the index appearing under Item 15(a)(2), of Potomac Electric Power Company (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Companyas of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017in conformity with accounting principles generally accepted in the United States of America.  

Basis for Opinion

Thesefinancial statements are the responsibility of the Company’s management.  Our responsibility is to express an opinion on the Company’s financial statements based on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of thesefinancial statements in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.  The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting.  Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of thefinancial statements, whether due to error or fraud, and performing procedures that respond to those risks.  Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in thefinancial statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of thefinancial statements.  We believe that our audits provide a reasonable basis for our opinion.

/s/ PricewaterhouseCoopers LLP
Washington, D.C.
February 9, 2018

We have served as the Company's auditor since at least 1993. We have not determined the specific year we began serving as auditor of the Company.


Report of Independent Registered Public Accounting Firm

Tothe Board of Directors and Shareholder of Delmarva Power & Light Company

Opinion on the Financial Statements

We have audited the financial statements, including the related notes, as listed in the index appearing under Item 15(a)(1), and the financial statement schedule listed in the index appearing under Item 15(a)(2), of Delmarva Power & Light Company (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Companyas of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

Thesefinancial statements are the responsibility of the Company’s management.  Our responsibility is to express an opinion on the Company’s financial statements based on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of thesefinancial statements in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.  The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting.  Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of thefinancial statements, whether due to error or fraud, and performing procedures that respond to those risks.  Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in thefinancial statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of thefinancial statements.  We believe that our audits provide a reasonable basis for our opinion.

/s/ PricewaterhouseCoopers LLP
Washington, D.C.
February 9, 2018

We have served as the Company's auditor since at least 1993. We have not determined the specific year we began serving as auditor of the Company.




Report of Independent Registered Public Accounting Firm

Tothe Board of Directors and Shareholder of Atlantic City Electric Company

Opinion on the Financial Statements

We have audited the consolidated financial statements, including the related notes, as listed in the index appearing under Item 15(a)(1), and the financial statement schedule listed in the index appearing under Item 15(a)(2), of Atlantic City Electric Company and its subsidiary (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Companyas of December 31, 20172022 and 2016,2021, and the results of theirits operations and theirits cash flows for each of the three years in the period ended December 31, 20172022 in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These consolidatedfinancial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”)(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these consolidatedfinancial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the auditaudits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidatedfinancial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidatedfinancial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidatedfinancial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Accounting for the Effects of Rate Regulation
As described in Notes 1 and 3 to the consolidated financial statements, the Company applies the authoritative guidance for accounting for certain types of regulation, which requires management to record in the consolidated financial statements the effects of cost-based rate regulation for entities with regulated operations that meet the following criteria, (i) rates are established or approved by a third-party regulator; (ii) rates are designed to recover the entity’s cost of providing services or products; and (iii) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. The Company accounts for its regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction under state public utility laws and the FERC under various Federal laws. Upon updates in material regulatory and legislative proceedings, where applicable, management will record new regulatory assets or liabilities and will assess whether it is probable that its currently recorded regulatory assets and liabilities will be
105

recovered and settled, respectively, in future rates. As of December 31, 2022, there were $3.4 billion of regulatory assets and $7.1 billion of regulatory liabilities.
The principal considerations for our determination that performing procedures relating to the Company’s accounting for the effects of rate regulation is a critical audit matter are the high degree of audit effort to assess the impact of regulation on accounting for regulatory assets and liabilities and to evaluate the complex audit evidence related to whether the regulatory assets and liabilities will be recovered and settled.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to accounting for regulatory matters and evaluation of new and existing regulatory assets and liabilities. These procedures also included, among others, obtaining the Company’s correspondence with regulators, evaluating the reasonableness of management’s interpretation of regulatory guidance and proceedings and the related accounting implications, and recalculating regulatory assets and liabilities based on provisions outlined in rate orders and other correspondence with regulators.

/s/ PricewaterhouseCoopers LLP
Washington, D.C.Chicago, Illinois
February 9, 201814, 2023


We have served as the Company's auditor since 2000.



106

Report of Independent Registered Public Accounting Firm

To theBoard of Directors and Shareholders of PECO Energy Company

Opinion on the Financial Statements
We have audited the consolidated financial statements, including the related notes, of PECO Energy Company and its subsidiaries (the “Company”) as listed in the index appearing under Item 15(a)(3)(i), and the financial statement schedule listed in the index appearing under Item 15(a)(3)(ii) (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2022 in conformity with accounting principles generally accepted in the United States of America.
Basis for Opinion
These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.
Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Accounting for the Effects of Rate Regulation
As described in Notes 1 and 3 to the consolidated financial statements, the Company applies the authoritative guidance for accounting for certain types of regulation, which requires management to record in the consolidated financial statements the effects of cost-based rate regulation for entities with regulated operations that meet the following criteria, (i) rates are established or approved by a third-party regulator; (ii) rates are designed to recover the entity’s cost of providing services or products; and (iii) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. The Company accounts for its regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction under state public utility laws and the FERC under various Federal laws. Upon updates in material regulatory and legislative proceedings, where applicable, management will record new regulatory assets or liabilities and will assess whether it is probable that its currently recorded regulatory assets and liabilities will be
107

recovered and settled, respectively, in future rates. As of December 31, 2022, there were $732 million of regulatory assets and $345 million of regulatory liabilities.
The principal considerations for our determination that performing procedures relating to the Company’s accounting for the effects of rate regulation is a critical audit matter are the high degree of audit effort to assess the impact of regulation on accounting for regulatory assets and liabilities and to evaluate the complex audit evidence related to whether the regulatory assets and liabilities will be recovered and settled.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to accounting for regulatory matters and evaluation of new and existing regulatory assets and liabilities. These procedures also included, among others, obtaining the Company’s correspondence with regulators, evaluating the reasonableness of management’s interpretation of regulatory guidance and proceedings and the related accounting implications, and recalculating regulatory assets and liabilities based on provisions outlined in rate orders and other correspondence with regulators.

/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 14, 2023

We have served as the Company's auditor since 1932.




108

Report of Independent Registered Public Accounting Firm

To theBoard of Directors and Shareholder of Baltimore Gas and Electric Company

Opinion on the Financial Statements
We have audited the financial statements, including the related notes, of Baltimore Gas and Electric Company (the “Company”) as listed in the index appearing under Item 15(a)(4)(i), and the financial statement schedule listed in the index appearing under Item 15(a)(4)(ii) (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2022 in conformity with accounting principles generally accepted in the United States of America.
Basis for Opinion
These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits of these financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.
Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Accounting for the Effects of Rate Regulation
As described in Notes 1 and 3 to the financial statements, the Company applies the authoritative guidance for accounting for certain types of regulation, which requires management to record in the financial statements the effects of cost-based rate regulation for entities with regulated operations that meet the following criteria, (i) rates are established or approved by a third-party regulator; (ii) rates are designed to recover the entity’s cost of providing services or products; and (iii) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. The Company accounts for its regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction under state public utility laws and the FERC under various Federal laws. Upon updates in material regulatory and legislative proceedings, where applicable, management will record new regulatory assets or liabilities and will assess whether it is probable that its currently recorded regulatory assets and liabilities will be recovered and settled,
109

respectively, in future rates. As of December 31, 2022, there were $704 million of regulatory assets and $863 million of regulatory liabilities.
The principal considerations for our determination that performing procedures relating to the Company’s accounting for the effects of rate regulation is a critical audit matter are the high degree of audit effort to assess the impact of regulation on accounting for regulatory assets and liabilities and to evaluate the complex audit evidence related to whether the regulatory assets and liabilities will be recovered and settled.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the financial statements. These procedures included testing the effectiveness of controls relating to accounting for regulatory matters and evaluation of new and existing regulatory assets and liabilities. These procedures also included, among others, obtaining the Company’s correspondence with regulators, evaluating the reasonableness of management’s interpretation of regulatory guidance and proceedings and the related accounting implications, and recalculating regulatory assets and liabilities based on provisions outlined in rate orders and other correspondence with regulators.

/s/ PricewaterhouseCoopers LLP
Baltimore, Maryland
February 14, 2023
We have served as the Company’s auditor since at least 1993. We have not been able to determine the specific year we began serving as auditor of the Company.



110

Report of Independent Registered Public Accounting Firm

To theBoard of Directors and Member of Pepco Holdings LLC

Opinion on the Financial Statements
We have audited the consolidated financial statements, including the related notes, of Pepco Holdings LLC and its subsidiaries (the “Company”) as listed in the index appearing under Item 15(a)(5)(i), and the financial statement schedule listed in the index appearing under Item 15(a)(5)(ii) (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2022 in conformity with accounting principles generally accepted in the United States of America.
Basis for Opinion
These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.
Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Accounting for the Effects of Rate Regulation
As described in Notes 1 and 3 to the consolidated financial statements, the Company applies the authoritative guidance for accounting for certain types of regulation, which requires management to record in the consolidated financial statements the effects of cost-based rate regulation for entities with regulated operations that meet the following criteria, (i) rates are established or approved by a third-party regulator; (ii) rates are designed to recover the entity’s cost of providing services or products; and (iii) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. The Company accounts for its regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction under state public utility laws and the FERC under various Federal laws. Upon updates in material regulatory and legislative proceedings, where applicable, management will record new regulatory assets or liabilities and will assess whether it is probable that its currently recorded regulatory assets and liabilities will be
111

recovered and settled, respectively, in future rates. As of December 31, 2022, there were $2.1 billion of regulatory assets and $1.1 billion of regulatory liabilities.
The principal considerations for our determination that performing procedures relating to the Company’s accounting for the effects of rate regulation is a critical audit matter are the high degree of audit effort to assess the impact of regulation on accounting for regulatory assets and liabilities and to evaluate the complex audit evidence related to whether the regulatory assets and liabilities will be recovered and settled.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to accounting for regulatory matters and evaluation of new and existing regulatory assets and liabilities. These procedures also included, among others, obtaining the Company’s correspondence with regulators, evaluating the reasonableness of management’s interpretation of regulatory guidance and proceedings and the related accounting implications, and recalculating regulatory assets and liabilities based on provisions outlined in rate orders and other correspondence with regulators.

/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 14, 2023

We have served as the Company's auditor since 2001.










112

Report of Independent Registered Public Accounting Firm

Tothe Board of Directors and Shareholder of Potomac Electric Power Company

Opinion on the Financial Statements
We have audited the financial statements, including the related notes, of Potomac Electric Power Company (the “Company”) as listed in the index appearing under Item 15(a)(6)(i), and the financial statement schedule listed in the index appearing under Item 15(a)(6)(ii) (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2022 in conformity with accounting principles generally accepted in the United States of America.
Basis for Opinion
These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits of these financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.
Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Accounting for the Effects of Rate Regulation
As described in Notes 1 and 3 to the financial statements, the Company applies the authoritative guidance for accounting for certain types of regulation, which requires management to record in the financial statements the effects of cost-based rate regulation for entities with regulated operations that meet the following criteria, (i) rates are established or approved by a third-party regulator; (ii) rates are designed to recover the entity’s cost of providing services or products; and (iii) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. The Company accounts for its regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction under state public utility laws and the FERC under various Federal laws. Upon updates in material regulatory and legislative proceedings, where applicable, management will record new regulatory assets or liabilities and will assess whether it is probable that its currently recorded regulatory assets and liabilities will be recovered and settled,
113

respectively, in future rates. As of December 31, 2022, there were $672 million of regulatory assets and $461 million of regulatory liabilities.
The principal considerations for our determination that performing procedures relating to the Company’s accounting for the effects of rate regulation is a critical audit matter are the high degree of audit effort to assess the impact of regulation on accounting for regulatory assets and liabilities and to evaluate the complex audit evidence related to whether the regulatory assets and liabilities will be recovered and settled.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the financial statements. These procedures included testing the effectiveness of controls relating to accounting for regulatory matters and evaluation of new and existing regulatory assets and liabilities. These procedures also included, among others, obtaining the Company’s correspondence with regulators, evaluating the reasonableness of management’s interpretation of regulatory guidance and proceedings and the related accounting implications, and recalculating regulatory assets and liabilities based on provisions outlined in rate orders and other correspondence with regulators.

/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 14, 2023

We have served as the Company's auditor since at least 1993. We have not been able to determine the specific year we began serving as auditor of the Company.


114

Report of Independent Registered Public Accounting Firm

Tothe Board of Directors and Shareholder of Delmarva Power & Light Company

Opinion on the Financial Statements
We have audited the financial statements, including the related notes, of Delmarva Power & Light Company (the “Company”) as listed in the index appearing under Item 15(a)(7)(i), and the financial statement schedule listed in the index appearing under Item 15(a)(7)(ii) (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2022 in conformity with accounting principles generally accepted in the United States of America.
Basis for Opinion
These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits of these financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.
Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Accounting for the Effects of Rate Regulation
As described in Notes 1 and 3 to the financial statements, the Company applies the authoritative guidance for accounting for certain types of regulation, which requires management to record in the financial statements the effects of cost-based rate regulation for entities with regulated operations that meet the following criteria, (i) rates are established or approved by a third-party regulator; (ii) rates are designed to recover the entity’s cost of providing services or products; and (iii) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. The Company accounts for its regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction under state public utility laws and the FERC under various Federal laws. Upon updates in material regulatory and legislative proceedings, where applicable, management will record new regulatory assets or liabilities and will assess whether it is probable that its currently recorded regulatory assets and liabilities will be recovered and settled,
115

respectively, in future rates. As of December 31, 2022, there were $282 million of regulatory assets and $424 million of regulatory liabilities.
The principal considerations for our determination that performing procedures relating to the Company’s accounting for the effects of rate regulation is a critical audit matter are the high degree of audit effort to assess the impact of regulation on accounting for regulatory assets and liabilities and to evaluate the complex audit evidence related to whether the regulatory assets and liabilities will be recovered and settled.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the financial statements. These procedures included testing the effectiveness of controls relating to accounting for regulatory matters and evaluation of new and existing regulatory assets and liabilities. These procedures also included, among others, obtaining the Company’s correspondence with regulators, evaluating the reasonableness of management’s interpretation of regulatory guidance and proceedings and the related accounting implications, and recalculating regulatory assets and liabilities based on provisions outlined in rate orders and other correspondence with regulators.

/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 14, 2023

We have served as the Company's auditor since at least 1993. We have not been able to determine the specific year we began serving as auditor of the Company.




116

Report of Independent Registered Public Accounting Firm

Tothe Board of Directors and Shareholder of Atlantic City Electric Company

Opinion on the Financial Statements
We have audited the consolidated financial statements, including the related notes, of Atlantic City Electric Company and its subsidiary (the “Company”) as listed in the index appearing under Item 15(a)(8)(i), and the financial statement schedule listed in the index appearing under Item 15(a)(8)(ii) (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2022 in conformity with accounting principles generally accepted in the United States of America.
Basis for Opinion
These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.
Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Accounting for the Effects of Rate Regulation
As described in Notes 1 and 3 to the consolidated financial statements, the Company applies the authoritative guidance for accounting for certain types of regulation, which requires management to record in the consolidated financial statements the effects of cost-based rate regulation for entities with regulated operations that meet the following criteria, (i) rates are established or approved by a third-party regulator; (ii) rates are designed to recover the entity’s cost of providing services or products; and (iii) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. The Company accounts for its regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction under state public utility laws and the FERC under various Federal laws. Upon updates in material regulatory and legislative proceedings, where applicable, management will record new regulatory assets or liabilities and will assess whether it is probable that its currently recorded regulatory assets and liabilities will be
117

recovered and settled, respectively, in future rates. As of December 31, 2022, there were $624 million of regulatory assets and $182 million of regulatory liabilities.
The principal considerations for our determination that performing procedures relating to the Company’s accounting for the effects of rate regulation is a critical audit matter are the high degree of audit effort to assess the impact of regulation on accounting for regulatory assets and liabilities and to evaluate the complex audit evidence related to whether the regulatory assets and liabilities will be recovered and settled.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to accounting for regulatory matters and evaluation of new and existing regulatory assets and liabilities. These procedures also included, among others, obtaining the Company’s correspondence with regulators, evaluating the reasonableness of management’s interpretation of regulatory guidance and proceedings and the related accounting implications, and recalculating regulatory assets and liabilities based on provisions outlined in rate orders and other correspondence with regulators.

/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 14, 2023

We have served as the Company's auditor since 1998.





118


Exelon Corporation and Subsidiary Companies
Consolidated Statements of Operations and Comprehensive Income
For the Years Ended December 31,For the Years Ended December 31,
(In millions, except per share data)2017 2016 2015(In millions, except per share data)202220212020
Operating revenues     Operating revenues
Competitive businesses revenues$17,360
 $16,324
 $18,395
Rate-regulated utility revenues16,171
 15,036
 11,052
Electric operating revenuesElectric operating revenues$16,899 $16,245 $15,236 
Natural gas operating revenuesNatural gas operating revenues2,018 1,522 1,421 
Revenues from alternative revenue programsRevenues from alternative revenue programs161 171 
Total operating revenues33,531
 31,360
 29,447
Total operating revenues19,078 17,938 16,663 
Operating expenses     Operating expenses
Competitive businesses purchased power and fuel9,668
 8,817
 10,007
Rate-regulated utility purchased power and fuel4,367
 3,823
 3,077
Purchased powerPurchased power5,380 4,703 4,086 
Purchased fuelPurchased fuel834 504 426 
Purchased power and fuel from affiliatesPurchased power and fuel from affiliates159 1,178 1,209 
Operating and maintenance10,126
 10,048
 8,322
Operating and maintenance4,673 4,547 4,641 
Depreciation and amortization3,828
 3,936
 2,450
Depreciation and amortization3,325 3,033 2,891 
Taxes other than income1,731
 1,576
 1,200
Taxes other than income taxesTaxes other than income taxes1,390 1,291 1,232 
Total operating expenses29,720

28,200

25,056
Total operating expenses15,761 15,256 14,485 
Gain (Loss) on sales of assets3
 (48) 18
Bargain purchase gain233
 
 
Gain on deconsolidation of business213
 
 
(Loss) Gain on sales of assets and businesses(Loss) Gain on sales of assets and businesses(2)— 13 
Operating income4,260

3,112

4,409
Operating income3,315 2,682 2,191 
Other income and (deductions)     Other income and (deductions)
Interest expense, net(1,524) (1,495) (992)Interest expense, net(1,422)(1,264)(1,282)
Interest expense to affiliates(36) (41) (41)Interest expense to affiliates(25)(25)(25)
Other, net1,056
 413
 (46)Other, net535 261 208 
Total other income and (deductions)(504)
(1,123)
(1,079) Total other income and (deductions)(912)(1,028)(1,099)
Income before income taxes3,756
 1,989
 3,330
Income from continuing operations before income taxesIncome from continuing operations before income taxes2,403 1,654 1,092 
Income taxes(125) 761
 1,073
Income taxes349 38 (7)
Equity in losses of unconsolidated affiliates(32) (24) (7)
Net income3,849

1,204

2,250
Net income (loss) attributable to noncontrolling interests and preference stock dividends79
 70
 (19)
Net income from continuing operations after income taxesNet income from continuing operations after income taxes2,054 1,616 1,099 
Net income from discontinued operations after income taxes (Note 2)Net income from discontinued operations after income taxes (Note 2)117 213 855 
Net IncomeNet Income2,171 1,829 1,954 
Net income (loss) attributable to noncontrolling interestsNet income (loss) attributable to noncontrolling interests123 (9)
Net income attributable to common shareholders$3,770

$1,134

$2,269
Net income attributable to common shareholders$2,170 $1,706 $1,963 
Amounts attributable to common shareholders:Amounts attributable to common shareholders:
Net income from continuing operationsNet income from continuing operations2,054 1,616 1,099 
Net income from discontinued operationsNet income from discontinued operations116 90 864 
Net income attributable to common shareholdersNet income attributable to common shareholders$2,170 $1,706 $1,963 
Comprehensive income, net of income taxes     Comprehensive income, net of income taxes
Net income$3,849
 $1,204
 $2,250
Net income$2,171 $1,829 $1,954 
Other comprehensive income (loss), net of income taxes     Other comprehensive income (loss), net of income taxes
Pension and non-pension postretirement benefit plans:     Pension and non-pension postretirement benefit plans:
Prior service benefit reclassified to periodic benefit cost(56) (48) (46)Prior service benefit reclassified to periodic benefit cost(1)(4)(40)
Actuarial loss reclassified to periodic benefit cost197
 184
 220
Actuarial loss reclassified to periodic benefit cost42 223 190 
Pension and non-pension postretirement benefit plan valuation adjustment10
 (181) (99)Pension and non-pension postretirement benefit plan valuation adjustment46 432 (357)
Unrealized gain on cash flow hedges3
 2
 9
Unrealized gain on marketable securities6
 1
 
Unrealized gain (loss) on equity investments4
 (4) (3)
Unrealized gain (loss) on foreign currency translation7
 10
 (21)
Unrealized gain (loss) on cash flow hedgesUnrealized gain (loss) on cash flow hedges(1)(3)
Unrealized gain on foreign currency translationUnrealized gain on foreign currency translation— — 
Other comprehensive income (loss)171

(36)
60
Other comprehensive income (loss)89 650 (206)
Comprehensive income4,020

1,168

2,310
Comprehensive income2,260 2,479 1,748 
Comprehensive income (loss) attributable to noncontrolling interests and preference stock dividends77
 70
 (19)
Comprehensive income (loss) attributable to noncontrolling interestsComprehensive income (loss) attributable to noncontrolling interests123 (9)
Comprehensive income attributable to common shareholders$3,943
 $1,098

$2,329
Comprehensive income attributable to common shareholders$2,259 $2,356 $1,757 
     
Average shares of common stock outstanding:     Average shares of common stock outstanding:
Basic947
 924
 890
Basic986 979 976 
Diluted949
 927
 893
Earnings per average common share:     
Assumed exercise and/or distributions of stock-based awardsAssumed exercise and/or distributions of stock-based awards
Diluted(a)
Diluted(a)
987 980 977 
Earnings per average common share from continuing operationsEarnings per average common share from continuing operations
Basic$3.98
 $1.23
 $2.55
Basic$2.08 $1.65 $1.13 
Diluted$3.97

$1.22
 $2.54
Diluted$2.08 $1.65 $1.13 
Dividends per common share$1.31
 $1.26
 $1.24
Earnings per average common share from discontinued operationsEarnings per average common share from discontinued operations
BasicBasic$0.12 $0.09 $0.88 
DilutedDiluted$0.12 $0.09 $0.88 

__________
(a)The number of stock options not included in the calculation of diluted common shares outstanding due to their antidilutive effect were none for the year ended December 31, 2022 and 2021 and less than 1 million for the years ended December 31, 2020.
See the Combined Notes to Consolidated Financial Statements


267119


Exelon Corporation and Subsidiary Companies
Consolidated Statements of Cash Flows
For the Years Ended December 31,
(In millions)202220212020
Cash flows from operating activities
Net income$2,171 $1,829 $1,954 
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization, and accretion, including nuclear fuel and energy contract amortization3,533 7,573 6,527 
Asset impairments48 552 591 
Gain on sales of assets and businesses(8)(201)(24)
Deferred income taxes and amortization of investment tax credits255 18 309 
Net fair value changes related to derivatives(53)(568)(268)
Net realized and unrealized gains on NDT funds205 (586)(461)
Net unrealized losses (gains) on equity investments16 160 (186)
Other non-cash operating activities370 (200)592 
Changes in assets and liabilities:
Accounts receivable(1,222)(703)697 
Inventories(121)(141)(85)
Accounts payable and accrued expenses1,318 440 (129)
Option premiums paid, net(39)(338)(139)
Collateral received (posted), net1,248 (74)494 
Income taxes(4)327 140 
Regulatory assets and liabilities, net(1,326)(634)(649)
Pension and non-pension postretirement benefit contributions(616)(665)(601)
Other assets and liabilities(905)(3,777)(4,527)
Net cash flows provided by operating activities4,870 3,012 4,235 
Cash flows from investing activities
Capital expenditures(7,147)(7,981)(8,048)
Proceeds from NDT fund sales488 6,532 3,341 
Investment in NDT funds(516)(6,673)(3,464)
Collection of DPP169 3,902 3,771 
Proceeds from sales of assets and businesses16 877 46 
Other investing activities— 26 18 
Net cash flows used in investing activities(6,990)(3,317)(4,336)
Cash flows from financing activities
Changes in short-term borrowings986 269 161 
Proceeds from short-term borrowings with maturities greater than 90 days1,300 1,380 500 
Repayments on short-term borrowings with maturities greater than 90 days(1,500)(350)— 
Issuance of long-term debt6,309 3,481 7,507 
Retirement of long-term debt(2,073)(1,640)(6,440)
Issuance of common stock563 — — 
Dividends paid on common stock(1,334)(1,497)(1,492)
Acquisition of CENG noncontrolling interest— (885)— 
Proceeds from employee stock plans36 80 45 
Transfer of cash, restricted cash, and cash equivalents to Constellation(2,594)— — 
Other financing activities(102)(80)(136)
Net cash flows provided by financing activities1,591 758 145 
(Decrease) increase in cash, restricted cash, and cash equivalents(529)453 44 
Cash, restricted cash, and cash equivalents at beginning of period1,619 1,166 1,122 
Cash, restricted cash, and cash equivalents at end of period$1,090 $1,619 $1,166 
Supplemental cash flow information
Increase in capital expenditures not paid$36 $16 $194 
Increase in DPP348 3,652 4,441 
Increase in PP&E related to ARO update332 642 850 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Cash flows from operating activities     
Net income$3,849
 $1,204
 $2,250
Adjustments to reconcile net income to net cash flows provided by operating activities:     
Depreciation, amortization and accretion, including nuclear fuel and energy contract amortization5,427
 5,576
 3,987
Impairment losses of long-lived assets, intangibles and regulatory assets573
 306
 36
Gain on deconsolidation of business
(213) 
 
(Gain) Loss on sales of assets(3) 48
 (18)
Bargain purchase gain(233) 
 
Deferred income taxes and amortization of investment tax credits(361) 664
 752
Net fair value changes related to derivatives151
 24
 (367)
Net realized and unrealized (gains) losses on nuclear decommissioning trust fund investments(616) (229) 131
Other non-cash operating activities721
 1,333
 1,109
Changes in assets and liabilities:     
Accounts receivable(426) (432) 240
Inventories(72) 7
 4
Accounts payable and accrued expenses(390) 771
 (121)
Option premiums received (paid), net28
 (66) 58
Collateral (posted) received, net(158) 931
 347
Income taxes299
 576
 97
Pension and non-pension postretirement benefit contributions(405) (397) (502)
Deposit with IRS
 (1,250) 
Other assets and liabilities(691) (621) (387)
Net cash flows provided by operating activities7,480

8,445

7,616
Cash flows from investing activities     
Capital expenditures(7,584) (8,553) (7,624)
Proceeds from termination of direct financing lease investment
 360
 
Proceeds from nuclear decommissioning trust fund sales7,845
 9,496
 6,895
Investment in nuclear decommissioning trust funds(8,113) (9,738) (7,147)
Acquisitions of businesses, net(208) (6,934) (40)
Proceeds from sales of long-lived assets219
 61
 147
Change in restricted cash(50) (42) 66
Other investing activities(43) (153) (119)
Net cash flows used in investing activities(7,934)
(15,503)
(7,822)
Cash flows from financing activities     
Changes in short-term borrowings(261) (353) 80
Proceeds from short-term borrowings with maturities greater than 90 days621
 240
 
Repayments on short-term borrowings with maturities greater than 90 days(700) (462) 
Issuance of long-term debt3,470
 4,716
 6,709
Retirement of long-term debt(2,490) (1,936) (2,687)
Retirement of long-term debt to financing trust(250) 
 
Restricted proceeds from issuance of long-term debt(50) 
 
Issuance of common stock
 
 1,868
Common stock issued from treasury stock

1,150
 
 
Redemption of preference stock
 (190) 
Dividends paid on common stock(1,236) (1,166) (1,105)
Proceeds from employee stock plans150
 55
 32
Sale of noncontrolling interests396
 372
 32
Other financing activities(83) (85) (99)
Net cash flows provided by financing activities717

1,191

4,830
Increase (Decrease) in cash and cash equivalents263
 (5,867) 4,624
Cash and cash equivalents at beginning of period635
 6,502
 1,878
Cash and cash equivalents at end of period$898

$635

$6,502

See the Combined Notes to Consolidated Financial Statements


268120


Exelon Corporation and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$407 $672 
Restricted cash and cash equivalents566 321 
Accounts receivable
Customer accounts receivable2,5442,189
Customer allowance for credit losses(327)(320)
Customer accounts receivable, net2,217 1,869 
Other accounts receivable1,4261,068
Other allowance for credit losses(82)(72)
Other accounts receivable, net1,344 996 
Inventories, net
Fossil fuel208 105 
Materials and supplies547 476 
Regulatory assets1,641 1,296 
Other406 387 
Current assets of discontinued operations— 7,835 
Total current assets7,336 13,957 
Property, plant, and equipment (net of accumulated depreciation and amortization of $15,930 and $14,430 as of December 31, 2022 and 2021, respectively)69,076 64,558 
Deferred debits and other assets
Regulatory assets8,037 8,224 
Goodwill6,630 6,630 
Receivable related to Regulatory Agreement Units2,897 — 
Investments232 250 
Other1,141 885 
Property, plant, and equipment, deferred debits, and other assets of discontinued operations— 38,509 
Total deferred debits and other assets18,937 54,498 
Total assets$95,349 $133,013 
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$898
 $635
Restricted cash and cash equivalents207
 253
Deposit with IRS
 1,250
Accounts receivable, net   
Customer4,401
 4,158
Other1,132
 1,201
Mark-to-market derivative assets976
 917
Unamortized energy contract assets60
 88
Inventories, net   
Fossil fuel and emission allowances340
 364
Materials and supplies1,311
 1,274
Regulatory assets1,267
 1,342
Other1,242
 930
Total current assets11,834

12,412
Property, plant and equipment, net74,202
 71,555
Deferred debits and other assets   
Regulatory assets8,021
 10,046
Nuclear decommissioning trust funds13,272
 11,061
Investments640
 629
Goodwill6,677
 6,677
Mark-to-market derivative assets337
 492
Unamortized energy contract assets395
 447
Pledged assets for Zion Station decommissioning
 113
Other1,322
 1,472
Total deferred debits and other assets30,664

30,937
Total assets(a)
$116,700

$114,904

See the Combined Notes to Consolidated Financial Statements


269121

Table of Contents

Exelon Corporation and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities
Short-term borrowings$2,586 $1,248 
Long-term debt due within one year1,802 2,153 
Accounts payable3,382 2,379 
Accrued expenses1,226 1,137 
Payables to affiliates
Regulatory liabilities437 376 
Mark-to-market derivative liabilities18 
Unamortized energy contract liabilities10 89 
Other1,155 766 
Current liabilities of discontinued operations— 7,940 
Total current liabilities10,611 16,111 
Long-term debt35,272 30,749 
Long-term debt to financing trusts390 390 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits11,250 10,611 
Regulatory liabilities9,112 9,628 
Pension obligations1,109 2,051 
Non-pension postretirement benefit obligations507 811 
Asset retirement obligations269 271 
Mark-to-market derivative liabilities83 201 
Unamortized energy contract liabilities35 146 
Other1,967 1,573 
Long-term debt, deferred credits, and other liabilities of discontinued operations— 25,676 
Total deferred credits and other liabilities24,332 50,968 
Total liabilities70,605 98,218 
Commitments and contingencies
Shareholders’ equity
Common stock (No par value, 2,000 shares authorized, 994 shares and 979 shares outstanding as of December 31, 2022 and 2021, respectively)20,908 20,324 
Treasury stock, at cost (2 shares as of December 31, 2022 and 2021)(123)(123)
Retained earnings4,597 16,942 
Accumulated other comprehensive loss, net(638)(2,750)
Total shareholders’ equity24,744 34,393 
Noncontrolling interests— 402 
Total equity24,744 34,795 
Total liabilities and shareholders' equity$95,349 $133,013 
 December 31,
(In millions)2017 2016
LIABILITIES AND SHAREHOLDERS’ EQUITY   
Current liabilities   
Short-term borrowings$929
 $1,267
Long-term debt due within one year2,088
 2,430
Accounts payable3,532
 3,441
Accrued expenses1,835
 3,460
Payables to affiliates5
 8
Regulatory liabilities523
 602
Mark-to-market derivative liabilities232
 282
Unamortized energy contract liabilities231
 407
Renewable energy credit obligation352
 428
PHI Merger related obligation87
 151
Other982
 981
Total current liabilities10,796

13,457
Long-term debt32,176
 31,575
Long-term debt to financing trusts389
 641
Deferred credits and other liabilities   
Deferred income taxes and unamortized investment tax credits11,222
 18,138
Asset retirement obligations10,029
 9,111
Pension obligations3,736
 4,248
Non-pension postretirement benefit obligations2,093
 1,848
Spent nuclear fuel obligation1,147
 1,024
Regulatory liabilities9,865
 4,187
Mark-to-market derivative liabilities409
 392
Unamortized energy contract liabilities609
 830
Payable for Zion Station decommissioning
 14
Other2,097
 1,827
Total deferred credits and other liabilities41,207

41,619
Total liabilities(a)
84,568

87,292
Commitments and contingencies   
Shareholders’ equity   
Common stock (No par value, 2000 shares authorized, 963 shares and 924 shares outstanding at December 31, 2017 and 2016, respectively)18,964
 18,794
Treasury stock, at cost (2 shares and 35 shares at December 31, 2017 and 2016, respectively)(123) (2,327)
Retained earnings13,503
 12,030
Accumulated other comprehensive loss, net(2,487) (2,660)
Total shareholders’ equity29,857

25,837
Noncontrolling interests2,275
 1,775
Total equity32,132

27,612
Total liabilities and equity$116,700

$114,904

__________
(a)
Exelon’s consolidated assets include $9,565 million and $8,893 million at December 31, 2017 and December 31, 2016, respectively, of certain VIEs that can only be used to settle the liabilities of the VIE. Exelon’s consolidated liabilities include $3,612 million and $3,356 million at December 31, 2017 and December 31, 2016, respectively, of certain VIEs for which the VIE creditors do not have recourse to Exelon. See Note 2Variable Interest Entities.

See the Combined Notes to Consolidated Financial Statements


270122

Table of Contents

Exelon Corporation and Subsidiary Companies
Consolidated Statements of Changes in Equity
Shareholders' Equity
(In millions, shares in thousands)Issued
Shares
Common
Stock
Treasury
Stock
Retained
Earnings
Accumulated
Other
Comprehensive
Loss, net
Noncontrolling
Interests
Total
Equity
Balance, December 31, 2019974,416 $19,274 $(123)$16,267 $(3,194)$2,349 $34,573 
Net income (loss)— — — 1,963 — (9)1,954 
Long-term incentive plan activity1,570 40 — — — — 40 
Employee stock purchase plan issuances1,480 56 — — — — 56 
Sale of noncontrolling interests— — — — — 
Changes in equity of noncontrolling interests— — — — — (57)(57)
Common stock dividends
($1.53/common share)
— — — (1,495)— — (1,495)
Other comprehensive loss, net of income taxes— — — — (206)— (206)
Balance, December 31, 2020977,466 $19,373 $(123)$16,735 $(3,400)$2,283 $34,868 
Net income— — — 1,706 — 123 1,829 
Long-term incentive plan
activity
1,734 69 — — — — 69 
Employee stock purchase
plan issuances
2,091 90 — — — — 90 
Changes in equity of noncontrolling interests— — — — — (37)(37)
Acquisition of CENG noncontrolling interest— 1,080 — — — (1,965)(885)
Deferred tax adjustment related to acquisition of CENG noncontrolling interest— (290)— — — — (290)
Common stock dividends
($1.53/common share)
— — — (1,499)— — (1,499)
Acquisition of other noncontrolling interest— — — — (2)— 
Other comprehensive loss, net of income taxes— — — — 650 — 650 
Balance, December 31, 2021981,291 $20,324 $(123)$16,942 $(2,750)$402 $34,795 
Net income— — — 2,170 — 2,171 
Long-term incentive plan activity561 — — — — 
Employee stock purchase plan issuances983 41 — — — — 41 
Changes in equity of noncontrolling interests— — — — — (7)(7)
Distribution of Constellation (Note 2)— (21)— (13,179)2,023 (396)(11,573)
Issuance of common stock12,995 563 — — — — 563 
Common stock dividends
($1.35/common share)
— — — (1,336)— — (1,336)
Other comprehensive income, net of income taxes— — — — 89 — 89 
Balance, December 31, 2022995,830 $20,908 $(123)$4,597 $(638)$— $24,744 
 Shareholders' Equity      
(In millions, shares in thousands)Issued
Shares
 Common
Stock
 Treasury
Stock
 Retained
Earnings
 Accumulated
Other
Comprehensive
Loss
 Noncontrolling
Interests
 Preference
Stock
 Total
Equity
Balance, December 31, 2014894,568
 $16,709
 $(2,327) $10,910
 $(2,684) $1,332
 $193
 $24,133
Net income (loss)
 
 
 2,269
 
 (32) 13
 2,250
Long-term incentive plan activity1,430
 70
 
 
 
 
 
 70
Employee stock purchase plan issuances1,170
 32
 
 
 
 
 
 32
Issuance of common stock57,500
 1,868
 
 
 
 
 
 1,868
Tax benefit on stock compensation
 (3) 
 
 
 
 
 (3)
Acquisition of noncontrolling interests
 
 
 
 
 4
 
 4
Adjustment of contingently redeemable noncontrolling interests due to release of contingency


 
 
 
 
 4
 
 4
Common stock dividends
 
 
 (1,111) 
 
 
 (1,111)
Preference stock dividends
 
 
 
 
 
 (13) (13)
Other comprehensive income, net of income taxes
 
 
 
 60
 
 
 60
Balance, December 31, 2015954,668

$18,676

$(2,327)
$12,068

$(2,624)
$1,308

$193

$27,294
Net income
 
 
 1,134
 
 62
 8
 1,204
Long-term incentive plan
activity
2,868
 85
 
 
 
 
 
 85
Employee stock purchase
plan issuances
1,242
 55
 
 
 
 
 
 55
Tax benefit on stock compensation
 (18) 
 
 
 
 
 (18)
Changes in equity of noncontrolling interests


 
 
 
 
 5
 
 5
Sale of noncontrolling interest
 (4) 
 
 
 243
 
 239
Adjustment of contingently redeemable noncontrolling interests due to release of contingency
 
 
 
 
 157
 
 157
Common stock dividends
 
 
 (1,172) 
 
 
 (1,172)
Redemption of preference stock


 
 
 
 
 
 (193) (193)
Preference stock dividends
 
 
 
 
 
 (8) (8)
Other comprehensive loss, net of income taxes
 
 
 
 (36) 
 
 (36)
Balance, December 31, 2016958,778

$18,794

$(2,327)
$12,030

$(2,660)
$1,775

$

$27,612
Net income
 
 
 3,770
 
 79
 
 3,849
Long-term incentive plan activity5,066
 56
 
 
 
 
 
 56
Employee stock purchase plan issuances1,324
 150
 
 
 
 
 
 150
Common stock issued from treasury stock
 
 2,204
 (1,054) 
 
 
 1,150
Changes in equity of noncontrolling interests
 
 
 
 
 (20) 
 (20)
Sale of noncontrolling interests
 (36) 
 
 
 443
 
 407
Common stock dividends
 
 
 (1,243) 
 
 
 (1,243)
Other comprehensive income, net of income taxes
 
 
 
 173
 (2) 
 171
Balance, December 31, 2017965,168

$18,964

$(123)
$13,503

$(2,487)
$2,275

$

$32,132

See the Combined Notes to Consolidated Financial Statements


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Exelon Generation Company, LLC and Subsidiary Companies
Consolidated Statements of Operations and Comprehensive Income
 For the Years Ended December 31,
(In millions)2017 2016 2015
Operating revenues     
Operating revenues$17,351
 $16,312
 $18,386
Operating revenues from affiliates1,115
 1,439
 749
Total operating revenues18,466

17,751

19,135
Operating expenses     
Purchased power and fuel9,671
 8,818
 10,007
Purchased power and fuel from affiliates19
 12
 14
Operating and maintenance5,594
 4,978
 4,688
Operating and maintenance from affiliates697
 663
 620
Depreciation and amortization1,457
 1,879
 1,054
Taxes other than income555
 506
 489
Total operating expenses17,993

16,856

16,872
Gain (Loss) on sales of assets2
 (59) 12
Bargain purchase gain233
 
 
Gain on deconsolidation of business213
 
 
Operating income921
 836
 2,275
Other income and (deductions)     
Interest expense, net(401) (325) (322)
Interest expense to affiliates(39) (39) (43)
Other, net948
 401
 (60)
Total other income and (deductions)508

37

(425)
Income before income taxes1,429
 873
 1,850
Income taxes(1,375) 290
 502
Equity in losses of unconsolidated affiliates(33) (25) (8)
Net income2,771

558

1,340
Net income (loss) attributable to noncontrolling interests77
 62
 (32)
Net income attributable to membership interest$2,694

$496

$1,372
Comprehensive income, net of income taxes     
Net income$2,771
 $558
 $1,340
Other comprehensive income (loss), net of income taxes     
Unrealized gain (loss) on cash flow hedges3
 2
 (3)
Unrealized gain (loss) on equity investments4
 (4) (3)
Unrealized gain (loss) on foreign currency translation7
 10
 (21)
Unrealized gain on marketable securities1
 1
 
Other comprehensive income (loss)15

9

(27)
Comprehensive income$2,786

$567

$1,313
Comprehensive income (loss) attributable to noncontrolling interests75
 62
 (32)
Comprehensive income attributable to membership interest$2,711
 $505
 $1,345

See the Combined Notes to Consolidated Financial Statements

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Table of Contents

Exelon Generation Company, LLC and Subsidiary Companies
Consolidated Statements of Cash Flows
 For the Years Ended December 31,
(In millions)2017 2016 2015
Cash flows from operating activities     
Net income$2,771
 $558
 $1,340
Adjustments to reconcile net income to net cash flows provided by operating activities:     
Depreciation, amortization and accretion, including nuclear fuel and energy contract amortization3,056
 3,519
 2,589
Impairment losses of long-lived assets510
 243
 12
Gain on deconsolidation of business(213) 
 
(Gain) Loss on sales of assets(2) 59
 (12)
Bargain purchase gain(233) 
 
Deferred income taxes and amortization of investment tax credits(2,022) (269) 49
Net fair value changes related to derivatives167
 40
 (249)
Net realized and unrealized (gains) losses on nuclear decommissioning trust fund investments(616) (229) 131
Other non-cash operating activities112
 15
 268
Changes in assets and liabilities:     
Accounts receivable(276) (152) 194
Receivables from and payables to affiliates, net(7) (21) 15
Inventories(29) (4) 16
Accounts payable and accrued expenses2
 29
 (149)
Option premiums received (paid), net28
 (66) 58
Collateral (posted) received, net(129) 923
 407
Income taxes496
 182
 (18)
Pension and non-pension postretirement benefit contributions(148) (152) (245)
Other assets and liabilities(168) (231) (207)
Net cash flows provided by operating activities3,299

4,444

4,199
Cash flows from investing activities     
Capital expenditures(2,259) (3,078) (3,841)
Proceeds from nuclear decommissioning trust fund sales7,845
 9,496
 6,895
Investment in nuclear decommissioning trust funds(8,113) (9,738) (7,147)
Proceeds from sales of long-lived assets218
 37
 147
Acquisitions of businesses, net(208) (293) (40)
Change in restricted cash(17) (35) 35
Other investing activities(58) (240) (118)
Net cash flows used in investing activities(2,592)
(3,851)
(4,069)
Cash flows from financing activities     
Change in short-term borrowings(620) 620
 
Proceeds from short-term borrowings with maturities greater than 90 days121
 240
 
Repayments of short-term borrowings with maturities greater than 90 days(200) (162) 
Issuance of long-term debt1,645
 388
 1,309
Retirement of long-term debt(1,261) (202) (89)
Restricted proceeds from issuance of long-term debt(50) 
 
Retirement of long-term debt to affiliate
 
 (550)
Changes in Exelon intercompany money pool(1) (1,191) 1,252
Distributions to member(659) (922) (2,474)
Contributions from member102
 142
 47
Sale of noncontrolling interests396
 372
 32
Other financing activities(54) (19) (6)
Net cash flows used in financing activities(581)
(734)
(479)
Increase (Decrease) in cash and cash equivalents126
 (141) (349)
Cash and cash equivalents at beginning of period290
 431
 780
Cash and cash equivalents at end of period$416

$290

$431

See the Combined Notes to Consolidated Financial Statements

273

Table of Contents

Exelon Generation Company, LLC and Subsidiary Companies
Consolidated Balance Sheets
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$416
 $290
Restricted cash and cash equivalents138
 158
Accounts receivable, net   
Customer2,653
 2,433
Other321
 558
Mark-to-market derivative assets976
 917
Receivables from affiliates140
 156
Unamortized energy contract assets60
 88
Inventories, net   
Fossil fuel and emission allowances264
 292
Materials and supplies937
 935
Other915
 701
Total current assets6,820

6,528
Property, plant and equipment, net24,906
 25,585
Deferred debits and other assets   
Nuclear decommissioning trust funds13,272
 11,061
Investments433
 418
Goodwill47
 47
Mark-to-market derivative assets334
 476
Prepaid pension asset1,502
 1,595
Pledged assets for Zion Station decommissioning
 113
Unamortized energy contract assets395
 447
Deferred income taxes16
 16
Other662
 688
Total deferred debits and other assets16,661

14,861
Total assets(a)
$48,387

$46,974

See the Combined Notes to Consolidated Financial Statements

274

Table of Contents

Exelon Generation Company, LLC and Subsidiary Companies
Consolidated Balance Sheets
 December 31,
(In millions)2017 2016
LIABILITIES AND EQUITY   
Current liabilities   
Short-term borrowings$2
 $699
Long-term debt due within one year346
 1,117
Accounts payable1,773
 1,610
Accrued expenses1,020
 989
Payables to affiliates123
 137
Borrowings from Exelon intercompany money pool54
 55
Mark-to-market derivative liabilities211
 263
Unamortized energy contract liabilities43
 72
Renewable energy credit obligation352
 428
Other265
 313
Total current liabilities4,189

5,683
Long-term debt7,734
 7,202
Long-term debt to affiliate910
 922
Deferred credits and other liabilities   
Deferred income taxes and unamortized investment tax credits3,798
 5,585
Asset retirement obligations9,844
 8,922
Non-pension postretirement benefit obligations916
 930
Spent nuclear fuel obligation1,147
 1,024
Payables to affiliates3,065
 2,608
Mark-to-market derivative liabilities174
 153
Unamortized energy contract liabilities48
 80
Payable for Zion Station decommissioning
 14
Other658
 595
Total deferred credits and other liabilities19,650

19,911
Total liabilities(a)
32,483

33,718
Equity   
Member’s equity   
Membership interest9,357
 9,261
Undistributed earnings4,310
 2,275
Accumulated other comprehensive loss, net(37) (54)
Total member’s equity13,630

11,482
Noncontrolling interests2,274
 1,774
Total equity15,904

13,256
Total liabilities and equity$48,387

$46,974
__________
(a)Generation’s consolidated assets include $9,524 million and $8,817 million at December 31, 2017 and 2016, respectively, of certain VIEs that can only be used to settle the liabilities of the VIE. Generation’s consolidated liabilities include $3,510 million and $3,170 million at December 31, 2017 and 2016, respectively, of certain VIEs for which the VIE creditors do not have recourse to Generation. See Note 2–Variable Interest Entities.

See the Combined Notes to Consolidated Financial Statements

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Table of Contents

Exelon Generation Company, LLC and Subsidiary Companies
Consolidated Statements of Changes in Equity

Member’s Equity
Noncontrolling
Interests

Total
Equity
(In millions)Membership
Interest

Undistributed
Earnings

Accumulated
Other
Comprehensive
Loss, net

Balance, December 31, 2014$8,951
 $3,803
 $(36) $1,333
 $14,051
Net income (loss)

1,372



(32)
1,340
Acquisition of noncontrolling interests(1)




2

1
Adjustment of contingently redeemable noncontrolling interests due to release of contingency
 
 
 4
 4
Allocation of tax benefit from member47







47
Distribution to member
 (2,474) 
 
 (2,474)
Other comprehensive loss, net of income taxes



(27)


(27)
Balance, December 31, 2015$8,997

$2,701

$(63)
$1,307

$12,942
Net income

496



62

558
Sale of noncontrolling interests(4) 
 
 243
 239
Adjustment of contingently redeemable noncontrolling interests due to release of contingency





157

157
Changes in equity of noncontrolling interests
 
 
 5
 5
Allocation of tax benefit from member98







98
Contribution from member170
 
 
 
 170
Distribution to member

(922)




(922)
Other comprehensive income, net of income taxes



9



9
Balance, December 31, 2016$9,261

$2,275

$(54)
$1,774

$13,256
Net income
 2,694
 
 77
 2,771
Sale of noncontrolling interests(36) 
 
 443
 407
Changes in equity of noncontrolling interests
 
 
 (18) (18)
Distribution of net retirement benefit obligation to member33
 
 
 
 33
Allocation of tax benefit from member99
 
 
 
 99
Distribution to member
 (659) 
 
 (659)
Other comprehensive income, net of income taxes
 
 17
 (2) 15
Balance, December 31, 2017$9,357
 $4,310
 $(37) $2,274
 $15,904

See the Combined Notes to Consolidated Financial Statements

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Table of Contents


Commonwealth Edison Company and Subsidiary Companies
Consolidated Statements of Operations and Comprehensive Income
For the Years Ended December 31,
(In millions)202220212020
Operating revenues
Electric operating revenues$5,478 $6,323 $5,914 
Revenues from alternative revenue programs267 42 (47)
Operating revenues from affiliates16 41 37 
Total operating revenues5,761 6,406 5,904 
Operating expenses
Purchased power1,050 1,888 1,653 
Purchased power from affiliates59 383 345 
Operating and maintenance1,094 1,048 1,231 
Operating and maintenance from affiliates318 307 289 
Depreciation and amortization1,323 1,205 1,133 
Taxes other than income taxes374 320 299 
Total operating expenses4,218 5,151 4,950 
Loss on sales of assets(2)— — 
Operating income1,541 1,255 954 
Other income and (deductions)
Interest expense, net(401)(376)(369)
Interest expense to affiliates(13)(13)(13)
Other, net54 48 43 
Total other income and (deductions)(360)(341)(339)
Income before income taxes1,181 914 615 
Income taxes264 172 177 
Net income$917 $742 $438 
Comprehensive income$917 $742 $438 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Operating revenues     
Electric operating revenues$5,521
 $5,239
 $4,901
Operating revenues from affiliates15
 15
 4
Total operating revenues5,536
 5,254
 4,905
Operating expenses     
Purchased power1,533
 1,411
 1,301
Purchased power from affiliate108
 47
 18
Operating and maintenance1,157
 1,303
 1,372
Operating and maintenance from affiliate270
 227
 195
Depreciation and amortization850
 775
 707
Taxes other than income296
 293
 296
Total operating expenses4,214
 4,056
 3,889
       Gain on sales of assets1
 7
 1
Operating income1,323
 1,205
 1,017
Other income and (deductions)     
Interest expense, net(348) (448) (319)
Interest expense to affiliates(13) (13) (13)
Other, net22
 (65) 21
Total other income and (deductions)(339) (526) (311)
Income before income taxes984
 679
 706
Income taxes417
 301
 280
Net income$567
 $378
 $426
Comprehensive income$567
 $378
 $426

See the Combined Notes to Consolidated Financial Statements


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Commonwealth Edison Company and Subsidiary Companies
Consolidated Statements of Cash Flows
For the Years Ended December 31,
(In millions)202220212020
Cash flows from operating activities
Net income$917 $742 $438 
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization1,323 1,205 1,133 
Deferred income taxes and amortization of investment tax credits241 244 228 
Other non-cash operating activities(165)126 202 
Changes in assets and liabilities:
     Accounts receivable(163)(25)(10)
     Receivables from and payables to affiliates, net(34)32 (1)
     Inventories(28)(2)(13)
     Accounts payable and accrued expenses406 — 63 
     Collateral received, net51 — 14 
     Income taxes— — 
     Regulatory assets and liabilities, net(1,033)(388)(410)
     Pension and non-pension postretirement benefit contributions(184)(196)(148)
     Other assets and liabilities(134)(143)(180)
Net cash flows provided by operating activities1,197 1,595 1,324 
Cash flows from investing activities
Capital expenditures(2,506)(2,387)(2,217)
Other investing activities28 26 
Net cash flows used in investing activities(2,478)(2,361)(2,215)
Cash flows from financing activities
Changes in short-term borrowings427 (323)193 
Proceeds from short-term borrowings with maturities greater than 90 days150 — — 
Issuance of long-term debt750 1,150 1,000 
Retirement of long-term debt— (350)(500)
Dividends paid on common stock(578)(507)(499)
Contributions from parent670 791 712 
Other financing activities(11)(16)(13)
Net cash flows provided by financing activities1,408 745 893 
Increase (decrease) in cash, restricted cash, and cash equivalents127 (21)
Cash, restricted cash, and cash equivalents at beginning of period384 405 403 
Cash, restricted cash, and cash equivalents at end of period$511 $384 $405 
Supplemental cash flow information
(Decrease) increase in capital expenditures not paid$(20)$(46)$109 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Cash flows from operating activities     
Net income$567
 $378
 $426
Adjustments to reconcile net income to net cash flows provided by operating activities:     
Depreciation, amortization and accretion850
 775
 707
Deferred income taxes and amortization of investment tax credits659
 439
 353
Other non-cash operating activities164
 215
 416
Changes in assets and liabilities:     
Accounts receivable(59) (25) (93)
Receivables from and payables to affiliates, net8
 3
 (19)
Inventories4
 1
 (40)
Accounts payable and accrued expenses(297) 339
 68
Counterparty collateral received (posted), net and cash deposits(26) 7
 (33)
Income taxes(308) 306
 192
Pension and non-pension postretirement benefit contributions(41) (38) (150)
Other assets and liabilities6
 105
 69
Net cash flows provided by operating activities1,527
 2,505
 1,896
Cash flows from investing activities     
Capital expenditures(2,250) (2,734) (2,398)
Change in restricted cash(66) 
 2
Other investing activities20
 49
 34
Net cash flows used in investing activities(2,296) (2,685) (2,362)
Cash flows from financing activities     
Changes in short-term borrowings
 (294) (10)
Issuance of long-term debt1,000
 1,200
 850
Retirement of long-term debt(425) (665) (260)
Contributions from parent651
 315
 202
Dividends paid on common stock(422) (369) (299)
Other financing activities(15) (18) (16)
Net cash flows provided by financing activities789
 169
 467
Increase (Decrease) in cash and cash equivalents20
 (11) 1
Cash and cash equivalents at beginning of period56
 67
 66
Cash and cash equivalents at end of period$76
 $56
 $67

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Commonwealth Edison Company and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$67 $131 
Restricted cash and cash equivalents327 210 
Accounts receivable
       Customer accounts receivable558647
       Customer allowance for credit losses(59)(73)
          Customer accounts receivable, net499 574 
       Other accounts receivable441227
       Other allowance for credit losses(17)(17)
          Other accounts receivable, net424 210 
Receivables from affiliates16 
Inventories, net196 170 
Regulatory assets775 335 
Other92 76 
Total current assets2,383 1,722 
Property, plant, and equipment (net of accumulated depreciation and amortization of $6,673 and $6,099 as of December 31, 2022 and 2021, respectively)27,513 25,995 
Deferred debits and other assets
Regulatory assets2,667 1,870 
Goodwill2,625 2,625 
Receivables from affiliates— 2,761 
Receivable related to Regulatory Agreement Units2,660 — 
Investments
Prepaid pension asset1,206 1,086 
Other601 405 
Total deferred debits and other assets9,765 8,753 
Total assets$39,661 $36,470 
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$76
 $56
Restricted cash5
 2
Accounts receivable, net   
Customer559
 528
Other266
 218
Receivables from affiliates13
 356
Inventories, net152
 159
Regulatory assets225
 190
Other68
 45
Total current assets1,364
 1,554
Property, plant and equipment, net20,723
 19,335
Deferred debits and other assets   
Regulatory assets1,054
 977
Investments6
 6
Goodwill2,625
 2,625
Receivable from affiliates2,528
 2,170
Prepaid pension asset1,188
 1,343
Other238
 325
Total deferred debits and other assets7,639
 7,446
Total assets$29,726
 $28,335

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Commonwealth Edison Company and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities
Short-term borrowings$577 $— 
Accounts payable1,010 647 
Accrued expenses415 384 
Payables to affiliates74 121 
Customer deposits108 99 
Regulatory liabilities226 185 
Mark-to-market derivative liabilities18 
Other191 133 
Total current liabilities2,606 1,587 
Long-term debt10,518 9,773 
Long-term debt to financing trusts205 205 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits5,021 4,685 
Regulatory liabilities6,913 6,759 
Asset retirement obligations148 144 
Non-pension postretirement benefit obligations165 169 
Mark-to-market derivative liabilities79 201 
Other642 592 
Total deferred credits and other liabilities12,968 12,550 
Total liabilities26,297 24,115 
Commitments and contingencies
Shareholders’ equity
Common stock ($12.50 par value, 250 shares authorized, 127 shares outstanding as of December 31, 2022 and 2021)1,588 1,588 
Other paid-in capital9,746 9,076 
Retained earnings2,030 1,691 
Total shareholders’ equity13,364 12,355 
Total liabilities and shareholders’ equity$39,661 $36,470 
 December 31,
(In millions)2017 2016
LIABILITIES AND SHAREHOLDERS’ EQUITY   
Current liabilities   
Long-term debt due within one year$840
 $425
Accounts payable568
 645
Accrued expenses327
 1,250
Payables to affiliates74
 65
Customer deposits112
 121
Regulatory liabilities249
 329
Mark-to-market derivative liability21
 19
Other103
 84
Total current liabilities2,294
 2,938
Long-term debt6,761
 6,608
Long-term debt to financing trust205
 205
Deferred credits and other liabilities   
Deferred income taxes and unamortized investment tax credits3,469
 5,364
Asset retirement obligations111
 119
Non-pension postretirement benefits obligations219
 239
Regulatory liabilities6,328
 3,369
Mark-to-market derivative liability235
 239
Other562
 529
Total deferred credits and other liabilities10,924
 9,859
Total liabilities20,184
 19,610
Commitments and contingencies   
Shareholders’ equity   
Common stock1,588
 1,588
Other paid-in capital6,822
 6,150
Retained deficit unappropriated(1,639) (1,639)
Retained earnings appropriated2,771
 2,626
Total shareholders’ equity9,542
 8,725
Total liabilities and shareholders’ equity$29,726
 $28,335

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Commonwealth Edison Company and Subsidiary Companies
Consolidated Statements of Changes in Shareholders’ Equity
(In millions)Common
Stock
Other
Paid-In
Capital
Retained
Earnings
Total
Shareholders’
Equity
Balance, December 31, 2019$1,588 $7,572 $1,517 $10,677 
Net income— — 438 438 
Common stock dividends— — (499)(499)
Contributions from parent— 713 — 713 
Balance, December 31, 2020$1,588 $8,285 $1,456 $11,329 
Net income— — 742 742 
Common stock dividends— — (507)(507)
Contributions from parent— 791 — 791 
Balance, December 31, 2021$1,588 $9,076 $1,691 $12,355 
Net income— — 917 917 
Common stock dividends— — (578)(578)
Contributions from parent— 670 — 670 
Balance, December 31, 2022$1,588 $9,746 $2,030 $13,364 
(In millions)
Common
Stock
 
Other
Paid-In
Capital
 
Retained Deficit
Unappropriated
 
Retained
Earnings
Appropriated
 
Total
Shareholders’
Equity
Balance, December 31, 2014$1,588
 $5,468
 $(1,639) $2,490
 $7,907
Net income
 
 426
 
 426
Common stock dividends
 
 
 (299) (299)
Contribution from parent
 202
 
 
 202
Parent tax matter indemnification
 7
 
 
 7
Appropriation of retained earnings for future dividends
 
 (426) 426
 
Balance, December 31, 2015$1,588
 $5,677
 $(1,639) $2,617
 $8,243
Net income
 
 378
 
 378
Common stock dividends
 
 
 (369) (369)
Contribution from parent
 315
 
 
 315
Parent tax matter indemnification
 158
 
 
 158
Appropriation of retained earnings for future dividends
 
 (378) 378
 
Balance, December 31, 2016$1,588
 $6,150
 $(1,639) $2,626
 $8,725
Net income
 
 567
 
 567
Common stock dividends
 
 
 (422) (422)
Contribution from parent
 651
 
 
 651
Parent tax matter indemnification
 21
 
 
 21
Appropriation of retained earnings for future dividends
 
 (567) 567
 
Balance, December 31, 2017$1,588
 $6,822
 $(1,639) $2,771
 $9,542

See the Combined Notes to Consolidated Financial Statements


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Table of Contents



PECO Energy Company and Subsidiary Companies
Consolidated Statements of Operations and Comprehensive Income
For the Years Ended December 31,
(In millions)202220212020
Operating revenues
Electric operating revenues$3,156 $2,613 $2,519 
Natural gas operating revenues738 538 514 
Revenues from alternative revenue programs26 16 
Operating revenues from affiliates21 
Total operating revenues3,903 3,198 3,058 
Operating expenses
Purchased power1,160 699 645 
Purchased fuel342 188 185 
Purchased power from affiliates33 194 188 
Operating and maintenance791 757 816 
Operating and maintenance from affiliates201 177 159 
Depreciation and amortization373 348 347 
Taxes other than income taxes202 184 172 
Total operating expenses3,102 2,547 2,512 
Operating income801 651 546 
Other income and (deductions)
Interest expense, net(165)(149)(136)
Interest expense to affiliates, net(12)(12)(11)
Other, net31 26 18 
Total other income and (deductions)(146)(135)(129)
Income before income taxes655 516 417 
Income taxes79 12 (30)
Net income$576 $504 $447 
Comprehensive income$576 $504 $447 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Operating revenues     
Electric operating revenues$2,369
 $2,524
 $2,485
Natural gas operating revenues494
 462
 545
Operating revenues from affiliates7
 8
 2
Total operating revenues2,870

2,994

3,032
Operating expenses     
Purchased power648
 598
 735
Purchased fuel186
 162
 235
Purchased power from affiliate135
 287
 220
Operating and maintenance657
 665
 684
Operating and maintenance from affiliates149
 146
 110
Depreciation and amortization286
 270
 260
Taxes other than income154
 164
 160
Total operating expenses2,215

2,292

2,404
Gain on sales of assets
 
 2
Operating income655

702

630
Other income and (deductions)     
Interest expense, net(115) (111) (102)
Interest expense to affiliates, net(11) (12) (12)
Other, net9
 8
 5
Total other income and (deductions)(117)
(115)
(109)
Income before income taxes538

587

521
Income taxes104
 149
 143
Net income$434

$438

$378
Comprehensive income$434

$438

$378

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

PECO Energy Company and Subsidiary Companies
Consolidated Statements of Cash Flows
For the Years Ended December 31,
(In millions)202220212020
Cash flows from operating activities
Net income$576 $504 $447 
Adjustments to reconcile net income to net cash flows provided by
operating activities:
Depreciation and amortization373 348 347 
Deferred income taxes and amortization of investment tax
credits
70 11 (23)
Other non-cash operating activities40 — 24 
Changes in assets and liabilities:
Accounts receivable(205)(35)(88)
Receivables from and payables to affiliates, net(31)21 (6)
Inventories(56)(26)(1)
Accounts payable and accrued expenses152 15 63 
Income taxes(20)31 
Regulatory assets and liabilities, net(45)(21)
Pension and non-pension postretirement benefit contributions(18)(18)(18)
Other assets and liabilities(31)— 
Net cash flows provided by operating activities841 773 777 
Cash flows from investing activities
Capital expenditures(1,349)(1,240)(1,147)
Changes in Exelon intercompany money pool— — 68 
Other investing activities
Net cash flows used in investing activities(1,341)(1,231)(1,072)
Cash flows from financing activities
Change in short-term borrowings239 — — 
Issuance of long-term debt775 750 350 
Retirement of long-term debt(350)(300)— 
Changes in Exelon intercompany money pool— (40)40 
Dividends paid on common stock(399)(339)(340)
Contributions from parent274 414 248 
Other financing activities(15)(9)(4)
Net cash flows provided by financing activities524 476 294 
Increase (decrease) in cash, restricted cash, and cash equivalents24 18 (1)
Cash, restricted cash, and cash equivalents at beginning of period44 26 27 
Cash, restricted cash, and cash equivalents at end of period$68 $44 $26 
Supplemental cash flow information
Increase in capital expenditures not paid$$26 $55 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Cash flows from operating activities     
Net income$434
 $438
 $378
Adjustments to reconcile net income to net cash flows provided by
operating activities:
     
Depreciation, amortization and accretion286
 270
 260
Deferred income taxes and amortization of investment tax
credits
19
 78
 90
Other non-cash operating activities54
 65
 70
Changes in assets and liabilities:     
Accounts receivable(44) (71) 37
Receivables from and payables to affiliates, net(6) 6
 3
Inventories1
 6
 10
Accounts payable and accrued expenses6
 67
 (25)
Income taxes34
 8
 (9)
Pension and non-pension postretirement benefit
contributions
(24) (30) (40)
Other assets and liabilities(5) (8) (4)
Net cash flows provided by operating activities755

829

770
Cash flows from investing activities     
Capital expenditures(732) (686) (601)
Changes in intercompany money pool131
 (131) 
Change in restricted cash
 (1) (1)
Other investing activities4
 20
 14
Net cash flows used in investing activities(597)
(798)
(588)
Cash flows from financing activities     
Issuance of long-term debt325
 300
 350
Retirement of long-term debt
 (300) 
Contributions from parent16
 18
 16
Dividends paid on common stock(288) (277) (279)
Other financing activities(3) (4) (4)
Net cash flows provided by (used in) financing activities50

(263)
83
Increase (Decrease) in cash and cash equivalents208
 (232) 265
Cash and cash equivalents at beginning of period63
 295
 30
Cash and cash equivalents at end of period$271

$63

$295

See the Combined Notes to Consolidated Financial Statements


283130

Table of Contents

PECO Energy Company and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$59 $36 
Restricted cash and cash equivalents
Accounts receivable
Customer accounts receivable635489
Customer allowance for credit losses(105)(105)
Customer accounts receivable, net530 384 
Other accounts receivable153116
Other allowance for credit losses(9)(7)
Other accounts receivable, net144 109 
Receivables from affiliates
Inventories, net
Fossil fuel99 51 
Materials and supplies52 45 
Regulatory assets80 48 
Other38 29 
Total current assets1,015 711 
Property, plant, and equipment (net of accumulated depreciation and amortization of $4,078 and $3,964 as of December 31, 2022 and 2021, respectively)12,125 11,117 
Deferred debits and other assets
Regulatory assets652 943 
Receivables from affiliates— 597 
Receivable related to Regulatory Agreement Units237 — 
Investments30 34 
Prepaid pension asset413 386 
Other30 36 
Total deferred debits and other assets1,362 1,996 
Total assets$14,502 $13,824 
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$271
 $63
Restricted cash and cash equivalents4
 4
Accounts receivable, net   
Customer327
 306
Other105
 131
Receivables from affiliates
 4
Receivable from Exelon intercompany pool
 131
Inventories, net   
Fossil fuel31
 35
Materials and supplies30
 27
Prepaid utility taxes8
 9
Regulatory assets29
 29
Other17
 18
Total current assets822

757
Property, plant and equipment, net8,053
 7,565
Deferred debits and other assets   
Regulatory assets381
 1,681
Investments25
 25
Receivable from affiliates537
 438
Prepaid pension asset340
 345
Other12
 20
Total deferred debits and other assets1,295

2,509
Total assets$10,170

$10,831

See the Combined Notes to Consolidated Financial Statements


284131

Table of Contents

PECO Energy Company and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities
Short-term borrowings$239 $— 
Long-term debt due within one year50 350 
Accounts payable668 494 
Accrued expenses142 136 
Payables to affiliates42 70 
Customer deposits63 48 
Regulatory liabilities75 94 
Other32 35 
Total current liabilities1,311 1,227 
Long-term debt4,562 3,847 
Long-term debt to financing trusts184 184 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits2,213 2,421 
Regulatory liabilities270 635 
Asset retirement obligations28 29 
Non-pension postretirement benefit obligations286 286 
Other85 83 
Total deferred credits and other liabilities2,882 3,454 
Total liabilities8,939 8,712 
Commitments and contingencies
Shareholder's equity
Common stock (No par value, 500 shares authorized, 170 shares outstanding as of December 31, 2022 and 2021)3,702 3,428 
Retained earnings1,861 1,684 
Total shareholder's equity5,563 5,112 
Total liabilities and shareholder's equity$14,502 $13,824 
 December 31,
(In millions)2017 2016
LIABILITIES AND SHAREHOLDER'S EQUITY   
Current liabilities   
Long-term debt due within one year$500
 $
Accounts payable370
 342
Accrued expenses114
 104
Payables to affiliates53
 63
Customer deposits66
 61
Regulatory liabilities141
 127
Other23
 30
Total current liabilities1,267

727
Long-term debt2,403
 2,580
Long-term debt to financing trusts184
 184
Deferred credits and other liabilities   
Deferred income taxes and unamortized investment tax credits1,789
 3,006
Asset retirement obligations27
 28
Non-pension postretirement benefits obligations288
 289
Regulatory liabilities549
 517
Other86
 85
Total deferred credits and other liabilities2,739

3,925
Total liabilities6,593

7,416
Commitments and contingencies   
Shareholder's equity   
Common stock2,489
 2,473
Retained earnings1,087
 941
Accumulated other comprehensive income, net1
 1
Total shareholder's equity3,577

3,415
Total liabilities and shareholder's equity$10,170

$10,831

See the Combined Notes to Consolidated Financial Statements


285132

Table of Contents

PECO Energy Company and Subsidiary Companies
Consolidated Statements of Changes in Shareholder's Equity
(In millions)Common
Stock
Retained
Earnings
Total
Shareholder's
Equity
Balance, December 31, 2019$2,766 $1,412 $4,178 
Net income— 447 447 
Common stock dividends— (340)(340)
Contributions from parent248 — 248 
Balance, December 31, 2020$3,014 $1,519 $4,533 
Net income— 504 504 
Common stock dividends— (339)(339)
Contributions from parent414 — 414 
Balance, December 31, 2021$3,428 $1,684 $5,112 
Net income— 576 576 
Common stock dividends— (399)(399)
Contributions from parent274 — 274 
Balance, December 31, 2022$3,702 $1,861 $5,563 
(In millions)
Common
Stock
 
Retained
Earnings
 
Accumulated
Other
Comprehensive
Income
 
Total
Shareholder's
Equity
Balance, December 31, 2014$2,439
 $681
 $1
 $3,121
Net income
 378
 
 378
Common stock dividends
 (279) 
 (279)
Allocation of tax benefit from parent16
 
 
 16
Balance, December 31, 2015$2,455

$780

$1

$3,236
Net income
 438
 
 438
Common stock dividends
 (277) 
 (277)
Allocation of tax benefit from parent18
 
 
 18
Balance, December 31, 2016$2,473

$941

$1

$3,415
Net income
 434
 
 434
Common stock dividends
 (288) 
 (288)
Allocation of tax benefit from parent16
 
 
 16
Balance, December 31, 2017$2,489

$1,087

$1

$3,577
 


See the Combined Notes to Consolidated Financial Statements


286133

Table of Contents



Baltimore Gas and Electric Company and Subsidiary Companies
Consolidated Statements of Operations and Comprehensive Income
For the Years Ended December 31,
(In millions)202220212020
Operating revenues
Electric operating revenues$2,890 $2,497 $2,323 
Natural gas operating revenues1,037 801 739 
Revenues from alternative revenue programs(47)12 16 
Operating revenues from affiliates15 31 20 
Total operating revenues3,895 3,341 3,098 
Operating expenses
Purchased power1,186 699 509 
Purchased fuel363 243 171 
Purchased power and fuel from affiliates18 233 311 
Operating and maintenance670 618 617 
Operating and maintenance from affiliates207 193 172 
Depreciation and amortization630 591 550 
Taxes other than income taxes302 283 268 
Total operating expenses3,376 2,860 2,598 
Operating income519 481 500 
Other income and (deductions)
Interest expense, net(152)(138)(133)
Other, net21 30 23 
Total other income and (deductions)(131)(108)(110)
Income before income taxes388 373 390 
Income taxes(35)41 
Net income$380 $408 $349 
Comprehensive income$380 $408 $349 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Operating revenues     
Electric operating revenues$2,484
 $2,603
 $2,490
Natural gas operating revenues676
 609
 631
Operating revenues from affiliates16
 21
 14
Total operating revenues3,176

3,233

3,135
Operating expenses     
Purchased power566
 528
 602
Purchased fuel183
 162
 205
Purchased power from affiliate384
 604
 498
Operating and maintenance563
 605
 565
Operating and maintenance from affiliates153
 132
 118
Depreciation and amortization473
 423
 366
Taxes other than income240
 229
 224
Total operating expenses2,562

2,683

2,578
Gain on sales of assets
 
 1
Operating income614

550

558
Other income and (deductions)     
Interest expense, net(95) (87) (83)
Interest expense to affiliates(10) (16) (16)
Other, net16
 21
 18
Total other income and (deductions)(89)
(82)
(81)
Income before income taxes525
 468
 477
Income taxes218
 174
 189
Net income307

294

288
Preference stock dividends
 8
 13
Net income attributable to common shareholder$307

$286

$275
      
Comprehensive income$307

$294

$288
Comprehensive income attributable to preference stock dividends
 8
 13
Comprehensive income attributable to common shareholder$307
 $286
 $275

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Baltimore Gas and Electric Company and Subsidiary Companies
Consolidated Statements of Cash Flows
For the Years Ended December 31,
(In millions)202220212020
Cash flows from operating activities
Net income$380 $408 $349 
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization630 591 550 
Asset impairments48 — — 
Deferred income taxes and amortization of investment tax credits(17)37 
Other non-cash operating activities135 75 97 
Changes in assets and liabilities:
Accounts receivable(197)30 (165)
Receivables from and payables to affiliates, net(2)(13)(8)
Inventories(61)(29)10 
Accounts payable and accrued expenses77 14 102 
Collateral received, net19 — 
Income taxes(17)20 60 
Regulatory assets and liabilities, net(160)(152)(118)
Pension and non-pension postretirement benefit contributions(68)(81)(78)
Other assets and liabilities(33)(120)48 
Net cash flows provided by operating activities760 729 884 
Cash flows from investing activities
Capital expenditures(1,262)(1,226)(1,247)
Other investing activities11 18 
Net cash flows used in investing activities(1,251)(1,208)(1,245)
Cash flows from financing activities
Changes in short-term borrowings278 130 (76)
Issuance of long-term debt500 600 400 
Retirement of long-term debt(250)(300)— 
Dividends paid on common stock(300)(292)(246)
Contributions from parent286 257 411 
Other financing activities(11)(6)(8)
Net cash flows provided by financing activities503 389 481 
Increase (decrease) in cash, restricted cash, and cash equivalents12 (90)120 
Cash, restricted cash, and cash equivalents at beginning of period55 145 25 
Cash, restricted cash, and cash equivalents at end of period$67 $55 $145 
Supplemental cash flow information
Increase (decrease) in capital expenditures not paid$35 $(59)$53 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Cash flows from operating activities     
Net income$307
 $294
 $288
Adjustments to reconcile net income to net cash flows provided by operating activities:     
Depreciation and amortization473
 423
 366
Impairment losses on long-lived assets and regulatory assets7
 52
 
Deferred income taxes and amortization of investment tax credits145
 118
 165
Other non-cash operating activities65
 88
 137
Changes in assets and liabilities:     
Accounts receivable(5) (98) 84
Receivables from and payables to affiliates, net(4) 3
 (2)
Inventories(9) 1
 18
Accounts payable and accrued expenses(15) 138
 (3)
Collateral received (posted), net
 
 (27)
Income taxes60
 18
 (54)
Pension and non-pension postretirement benefit contributions(53) (49) (17)
Other assets and liabilities(150) (43) (173)
Net cash flows provided by operating activities821

945

782
Cash flows from investing activities     
Capital expenditures(882) (934) (719)
Change in restricted cash26
 
 26
Other investing activities7
 24
 18
Net cash flows used in investing activities(849)
(910)
(675)
Cash flows from financing activities     
Changes in short-term borrowings32
 (165) 90
Issuance of long-term debt300
 850
 
Retirement of long-term debt(41) (379) (75)
Retirement of long-term debt to financing trust(250) 
 
Redemption of preference stock
 (190) 
Dividends paid on preference stock
 (8) (13)
Dividends paid on common stock(198) (179) (158)
Contributions from parent184
 61
 7
Other financing activities(5) (11) (13)
Net cash flows provided by (used in) financing activities22

(21)
(162)
(Decrease) Increase in cash and cash equivalents(6) 14
 (55)
Cash and cash equivalents at beginning of period23
 9
 64
Cash and cash equivalents at end of period$17

$23

$9

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Baltimore Gas and Electric Company and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$43 $51 
Restricted cash and cash equivalents24 
Accounts receivable
Customer accounts receivable617436
Customer allowance for credit losses(54)(38)
Customer accounts receivable, net563 398 
Other accounts receivable132124
Other allowance for credit losses(10)(9)
Other accounts receivable, net122 115 
Receivables from affiliates— 
Inventories, net
Fossil fuel91 42 
Materials and supplies65 53 
Prepaid utility taxes52 49 
Regulatory assets177 215 
Other13 
Total current assets1,150 936 
Property, plant, and equipment (net of accumulated depreciation and amortization of $4,583 and $4,299 as of December 31, 2022 and 2021, respectively)11,338 10,577 
Deferred debits and other assets
Regulatory assets527 477 
Investments14 
Prepaid pension asset291 276 
Other37 44 
Total deferred debits and other assets862 811 
Total assets$13,350 $12,324 
 December 31,
(In millions)2017
2016
ASSETS   
Current assets   
Cash and cash equivalents$17
 $23
Restricted cash and cash equivalents1
 24
Accounts receivable, net   
Customer375
 395
Other94
 102
Receivable from affiliates1
 
Inventories, net   
Gas held in storage37
 30
Materials and supplies40
 38
Prepaid utility taxes69
 15
Regulatory assets174
 208
Other3
 7
Total current assets811

842
Property, plant and equipment, net7,602
 7,040
Deferred debits and other assets   
Regulatory assets397
 504
Investments5
 12
Prepaid pension asset285
 297
Other4
 9
Total deferred debits and other assets691

822
Total assets(a)
$9,104

$8,704

See the Combined Notes to Consolidated Financial Statements


289136

Table of Contents

Baltimore Gas and Electric Company
Balance Sheets
December 31,
(In millions)20222021
LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities
Short-term borrowings$408 $130 
Long-term debt due within one year300 250 
Accounts payable462 349 
Accrued expenses159 176 
Payables to affiliates39 48 
Customer deposits105 97 
Regulatory liabilities47 26 
Other55 48 
Total current liabilities1,575 1,124 
Long-term debt3,907 3,711 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits1,832 1,686 
Regulatory liabilities816 934 
Asset retirement obligations30 26 
Non-pension postretirement benefit obligations166 175 
Other88 98 
Total deferred credits and other liabilities2,932 2,919 
Total liabilities8,414 7,754 
Commitments and contingencies
Shareholder's equity
Common stock (No par value, 0 shares(a) authorized, 0 shares(a) outstanding as of December 31, 2022 and 2021)
2,861 2,575 
Retained earnings2,075 1,995 
Total shareholder's equity4,936 4,570 
Total liabilities and shareholder's equity$13,350 $12,324 
_____________
(a)In millions, shares round to zero. Number of shares is 1,500 authorized and Subsidiary Companies1,000 outstanding as of December 31, 2022 and 2021.
Consolidated Balance Sheets
 December 31,
(In millions)2017 2016
LIABILITIES AND SHAREHOLDER'S EQUITY   
Current liabilities   
Short-term borrowings$77
 $45
Long-term debt due within one year
 41
Accounts payable265
 205
Accrued expenses164
 175
Payables to affiliates52
 55
Customer deposits116
 110
Regulatory liabilities62
 50
Other24
 26
Total current liabilities760

707
Long-term debt2,577
 2,281
Long-term debt to financing trust
 252
Deferred credits and other liabilities   
Deferred income taxes and unamortized investment tax credits1,244
 2,219
Asset retirement obligations23
 21
Non-pension postretirement benefits obligations202
 205
Regulatory liabilities1,101
 110
Other56
 61
Total deferred credits and other liabilities2,626

2,616
Total liabilities(a)
5,963

5,856
Commitments and contingencies   
Shareholder's equity   
Common stock1,605
 1,421
Retained earnings1,536
 1,427
Total shareholder's equity3,141

2,848
Total liabilities and shareholder's equity$9,104

$8,704
__________
(a)BGE’s consolidated assets include $26 million at December 31, 2016 of BGE’s consolidated VIE that can only be used to settle the liabilities of the VIE. BGE’s consolidated liabilities include $42 million at December 31, 2016 of BGE’s consolidated VIE for which the VIE creditors do not have recourse to BGE. BGE no longer has interests in any VIEs as of December 31, 2017. See Note 2 - Variable Interest Entities.

See the Combined Notes to Consolidated Financial Statements


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Baltimore Gas and Electric Company and Subsidiary Companies
Consolidated Statements of Changes in Shareholder's Equity
(In millions)Common
Stock
Retained
Earnings
Total
Shareholder's
Equity
Balance, December 31, 2019$1,907 $1,776 $3,683 
Net income— 349 349 
Common stock dividends— (246)(246)
Contributions from parent411 — 411 
Balance, December 31, 2020$2,318 $1,879 $4,197 
Net income— 408 408 
Common stock dividends— (292)(292)
Contributions from parent257 — 257 
Balance, December 31, 2021$2,575 $1,995 $4,570 
Net income— 380 380 
Common stock dividends— (300)(300)
Contributions from parent286 — 286 
Balance, December 31, 2022$2,861 $2,075 $4,936 
(In millions)
Common
Stock
 
Retained
Earnings
 
Total
Shareholder's
Equity
 
Preference 
stock
not subject to
mandatory
redemption
 
Total
Equity
Balance, December 31, 2014$1,360
 $1,203
 $2,563
 $190
 $2,753
Net income
 288
 288
 
 288
Preference stock dividends
 (13) (13) 
 (13)
Common stock dividends
 (158) (158) 
 (158)
Contribution from parent7
 
 7
 
 7
Balance, December 31, 2015$1,367

$1,320

$2,687

$190

$2,877
Net income
 294
 294
 
 294
Preference stock dividends
 (8) (8) 
 (8)
Common stock dividends
 (179) (179) 
 (179)
Distribution to parent(7) 
 (7) 
 (7)
Contribution from parent61
 
 61
 
 61
Redemption of preference stock
 
 
 (190) (190)
Balance, December 31, 2016$1,421

$1,427

$2,848

$

$2,848
Net income
 307
 307
 
 307
Common stock dividends
 (198) (198) 
 (198)
Contribution from parent184
 
 184
 
 184
Balance, December 31, 2017$1,605

$1,536

$3,141

$

$3,141

See the Combined Notes to Consolidated Financial Statements


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Table of Contents



Pepco Holdings LLC and Subsidiary Companies
Consolidated Statements of Operations and Comprehensive Income (Loss)
For the Years Ended December 31,
(In millions)202220212020
Operating revenues
Electric operating revenues$5,376 $4,769 $4,463 
Natural gas operating revenues238 168 162 
Revenues from alternative revenue programs(59)91 21 
Operating revenues from affiliates10 13 17 
Total operating revenues5,565 5,041 4,663 
Operating expenses
Purchased power1,984 1,417 1,279 
Purchased fuel129 73 69 
Purchased power from affiliates51 367 366 
Operating and maintenance966 925 940 
Operating and maintenance from affiliates191 179 159 
Depreciation and amortization938 821 782 
Taxes other than income taxes475 458 450 
Total operating expenses4,734 4,240 4,045 
Gain on sales of assets— — 11 
Operating income831 801 629 
Other income and (deductions)
Interest expense, net(292)(267)(268)
Other, net78 69 57 
Total other income and (deductions)(214)(198)(211)
Income before income taxes617 603 418 
Income taxes42 (77)
Net income$608 $561 $495 
Comprehensive income$608 $561 $495 
 Successor  Predecessor
 For the Year Ended
December 31,
 March 24 to December 31,  January 1 to March 23, For the Year Ended
December 31,
(In millions)

2017 2016  2016 2015
Operating revenues        
Electric operating revenues$4,468
 $3,506
  $1,096
 $4,770
Natural gas operating revenues161
 92
  57
 165
Operating revenues from affiliates50
 45
  
 
Total operating revenues4,679

3,643
  1,153
 4,935
Operating expenses        
Purchased power1,182
 925
  471
 1,986
Purchased fuel71
 36
  26
 87
Purchased power and fuel from affiliates463
 486
  
 
Operating and maintenance918
 1,144
  294
 1,156
Operating and maintenance from affiliates150
 89
  
 
Depreciation, amortization and accretion675
 515
  152
 624
Taxes other than income452
 354
  105
 455
Total operating expenses3,911

3,549
  1,048
 4,308
Gain (loss) on sales of assets1
 (1)  
 46
Operating income769

93
  105
 673
Other income and (deductions)        
Interest expense, net(245) (195)  (65) (280)
Other, net54
 44
  (4) 88
Total other income and (deductions)(191) (151)  (69) (192)
Income (loss) before income taxes578

(58)  36
 481
Income taxes217
 3
  17
 163
Equity in earnings of unconsolidated affiliates

1
 
  
 
Net income (loss) from continuing operations362
 (61)  19
 318
Net income from discontinued operations
 
  
 9
Net income (loss) attributable to membership interest/common shareholders$362
 $(61)  $19
 $327
Comprehensive income (loss), net of income taxes        
Net income (loss)$362
 $(61)  $19
 $327
Other comprehensive income (loss), net of income taxes        
Pension and non-pension postretirement benefit plans:        
Actuarial loss reclassified to periodic cost
 
  1
 9
Unrealized loss on cash flow hedges
 
  
 1
Other comprehensive income
 
  1
 10
Comprehensive income (loss)$362
 $(61)  $20
 $337

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Pepco Holdings LLC and Subsidiary Companies
Consolidated Statements of Cash Flows
For the Years Ended December 31,
(In millions)202220212020
Cash flows from operating activities
Net income$608 $561 $495 
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization938 821 782 
Deferred income taxes and amortization of investment tax credits(9)24 (97)
Other non-cash operating activities163 (12)103 
Changes in assets and liabilities:
Accounts receivable(184)(48)(159)
Receivables from and payables to affiliates, net(46)
Inventories(34)(16)(6)
Accounts payable and accrued expenses30 34 49 
Collateral received, net148 49 — 
Income taxes(1)17 (25)
Regulatory assets and liabilities, net(136)(99)(129)
Pension and non-pension postretirement benefit contributions(78)(48)(39)
Other assets and liabilities(149)(132)25 
Net cash flows provided by operating activities1,250 1,157 1,002 
Cash flows from investing activities
Capital expenditures(1,709)(1,720)(1,604)
Other investing activities
Net cash flows used in investing activities(1,703)(1,718)(1,597)
Cash flows from financing activities
Changes in short-term borrowings(54)100 160 
Issuance of long-term debt925 825 602 
Retirement of long-term debt(310)(260)(128)
Change in Exelon intercompany money pool37 (14)
Distributions to member(750)(703)(553)
Contributions from member787 683 494 
Other financing activities(22)(17)(10)
Net cash flows provided by financing activities613 614 574 
Increase (decrease) in cash, restricted cash, and cash equivalents160 53 (21)
Cash, restricted cash, and cash equivalents at beginning of period213 160 181 
Cash, restricted cash, and cash equivalents at end of period$373 $213 $160 
Supplemental cash flow information
Increase (decrease) in capital expenditures not paid$136 $(6)$54 
 Successor  Predecessor
 For the Year Ended December 31, March 24 to December 31,  January 1 to March 23, For the Year Ended December 31,
(In millions)2017 2016  2016 2015
Cash flows from operating activities        
Net income (loss)$362
 $(61)  $19
 $327
Income from discontinued operations, net of income taxes
 
  
 (9)
Adjustments to reconcile net income (loss) to net cash from operating activities:        
Depreciation and amortization675
 515
  152
 624
Impairment losses on intangibles and regulatory assets52
 
  
 
(Gain) loss on sales of assets(1) 1
  
 (46)
Deferred income taxes and amortization of investment tax credits252
 295
  19
 134
Net fair value changes related to derivatives
 
  18
 
Other non-cash operating activities59
 514
  46
 167
Changes in assets and liabilities:        
Accounts receivable(26) (21)  (28) (105)
Receivables from and payables to affiliates, net(2) 42
  
 
Inventories(37) 3
  (4) 
Accounts payable and accrued expenses(106) 19
  42
 (41)
Income taxes79
 (22)  12
 8
Pension and non-pension postretirement benefit contributions(99) (86)  (4) (21)
Other assets and liabilities(258) (311)  (8) (99)
Net cash flows provided by operating activities950
 888
  264
 939
Cash flows from investing activities        
Capital expenditures(1,396) (1,008)  (273) (1,230)
Proceeds from sales of long-lived assets1
 24
  
 54
Changes in restricted cash1
 (37)  3
 6
Purchases of investments
 
  (68) 
Other investing activities(2) (9)  (5) 9
Net cash flows used in investing activities(1,396) (1,030)  (343) (1,161)
Cash flows from financing activities        
Changes in short-term borrowings328
 (515)  (121) 34
Proceeds from short-term borrowings with maturities greater than 90 days
 
  500
 300
Repayments of short-term borrowings with maturities greater than 90 days(500) (300)  
 
Issuance of long-term debt202
 179
  
 558
Retirement of long-term debt(169) (338)  (11) (430)
Issuance of preferred stock
 
  
 54
Dividends paid on common stock
 
  
 (275)
Common stock issued for the Direct Stock Purchase and Dividend Reinvestment Plan and employee-related compensation
 
  2
 18
Distribution to member(311) (273)  
 
Contributions from member758
 1,251
  
 
Change in Exelon intercompany money pool
 (6)  
 
Other financing activities(2) (5)  2
 (26)
Net cash flows provided by (used in) financing activities306
 (7)  372
 233
(Decrease) Increase in cash and cash equivalents(140) (149) 
293

11
Cash and cash equivalents at beginning of period170
 319
  26
 15
Cash and cash equivalents at end of period$30
 $170
 
$319

$26

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Pepco Holdings LLC and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$198 $136 
Restricted cash and cash equivalents175 77 
Accounts receivable
Customer accounts receivable734616
Customer allowance for credit losses(109)(104)
Customer accounts receivable, net625 512 
Other accounts receivable300283
Other allowance for credit losses(46)(39)
Other accounts receivable, net254 244 
Receivable from affiliates
Inventories, net
Fossil fuel18 11 
Materials and supplies236 209 
Regulatory assets455 432 
Other96 69 
Total current assets2,059 1,692 
Property, plant, and equipment (net of accumulated depreciation and amortization of $2,618 and $2,108 as of December 31, 2022 and 2021, respectively)17,686 16,498 
Deferred debits and other assets
Regulatory assets1,610 1,794 
Goodwill4,005 4,005 
Investments138 145 
Prepaid pension asset353 344 
Other231 266 
Total deferred debits and other assets6,337 6,554 
Total assets$26,082 $24,744 
 Successor
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$30
 $170
Restricted cash and cash equivalents42
 43
Accounts receivable, net   
Customer486
 496
Other206
 283
Inventories, net   
Gas held in storage7
 6
Materials and supplies151
 116
Regulatory assets554
 653
Other75
 71
Total current assets1,551
 1,838
Property, plant and equipment, net12,498
 11,598
Deferred debits and other assets   
Regulatory assets2,493
 2,851
Investments132
 133
Goodwill4,005
 4,005
Long-term note receivable4
 4
Prepaid pension asset490
 509
Deferred income taxes4
 6
Other70
 81
Total deferred debits and other assets7,198
 7,589
Total assets(a)
$21,247
 $21,025

See the Combined Notes to Consolidated Financial Statements


294141

Table of Contents

Pepco Holdings LLC and Subsidiary Companies
Consolidated Balance Sheets
December 31,
(In millions)20222021
LIABILITIES AND EQUITY
Current liabilities
Short-term borrowings$414 $468 
Long-term debt due within one year591 399 
Accounts payable771 578 
Accrued expenses260 281 
Payables to affiliates66 104 
Borrowings from Exelon intercompany money pool44 
Customer deposits88 81 
Regulatory liabilities76 68 
Unamortized energy contract liabilities10 89 
PPA Termination Obligation87 — 
Other330 171 
Total current liabilities2,737 2,246 
Long-term debt7,529 7,148 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits2,895 2,675 
Regulatory liabilities1,011 1,238 
Asset retirement obligations59 70 
Non-pension postretirement benefit obligations50 66 
Unamortized energy contract liabilities35 146 
Other536 570 
  Total deferred credits and other liabilities4,586 4,765 
Total liabilities14,852 14,159 
Commitments and contingencies
Member's equity
Membership interest11,582 10,795 
Undistributed losses(352)(210)
Total member's equity11,230 10,585 
Total liabilities and member's equity$26,082 $24,744 
 Successor
 December 31,
(In millions)2017 2016
LIABILITIES AND EQUITY   
Current liabilities   
Short-term borrowings$350
 $522
Long-term debt due within one year396
 253
Accounts payable348
 458
Accrued expenses261
 272
Payables to affiliates90
 94
Unamortized energy contract liabilities188
 335
Customer deposits119
 123
Merger related obligation42
 101
Regulatory liabilities56
 79
Other81
 47
Total current liabilities1,931
 2,284
Long-term debt5,478
 5,645
Deferred credits and other liabilities   
Regulatory liabilities1,872
 158
Deferred income taxes and unamortized investment tax credits2,070
 3,775
Asset retirement obligations16
 14
Non-pension postretirement benefit obligations105
 134
Unamortized energy contract liabilities561
 750
Other389
 249
  Total deferred credits and other liabilities5,013
 5,080
Total liabilities(a)
12,422
 13,009
Commitments and contingencies   
Member's equity   
Membership interest8,835
 8,077
Undistributed (losses)(10) (61)
Total member's equity8,825
 8,016
Total liabilities and member's equity$21,247
 $21,025
_____________
(a)PHI’s consolidated total assets include $41 million and $49 million at December 31, 2017 and 2016, respectively, of PHI's consolidated VIE that can only be used to settle the liabilities of the VIE. PHI’s consolidated total liabilities include $102 million and $143 million at December 31, 2017 and 2016, respectively, of PHI's consolidated VIE for which the VIE creditors do not have recourse to PHI. See Note 2 - Variable Interest Entities.

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Pepco Holdings LLC and Subsidiary Companies
Consolidated Statements of Changes in Equity
(In millions)Membership InterestUndistributed (Losses)/GainsTotal
Member's Equity
Balance, December 31, 2019$9,618 $(10)$9,608 
Net income— 495 495 
Distribution to member— (553)(553)
Contributions from member494 — 494 
Balance, December 31, 2020$10,112 $(68)$10,044 
Net Income— 561 561 
Distribution to member— (703)(703)
Contributions from member683 — 683 
Balance, December 31, 2021$10,795 $(210)$10,585 
Net income— 608 608 
Distribution to member— (750)(750)
Contributions from member787 — 787 
Balance, December 31, 2022$11,582 $(352)$11,230 
(In millions, except share data)
Common Stock(a)
 Retained Earnings Accumulated Other Comprehensive Loss, net Total Shareholders' Equity
Predecessor       
Balance, December 31, 2014$3,803
 $565
 $(46) $4,322
Net income
 327
 
 327
Common stock dividends
 (275) 
 (275)
Original issue shares, net15
 
 
 15
DRP original issue shares11
 
 
 11
Net activity related to stock-based awards3
 
 
 3
Other comprehensive income, net of income taxes
 
 10
 10
Balance, December 31, 2015$3,832

$617

$(36)
$4,413
Net income
 19
 
 19
Original issue shares, net3
 
 
 3
Net activity related to stock-based awards3
 
 
 3
Other comprehensive income, net of income taxes
 
 1
 1
Balance, March 23, 2016$3,838

$636

$(35)
$4,439
        
SuccessorMembership Interest Undistributed Losses Accumulated Other Comprehensive Loss, net Total Member's Equity
Balance, March 24, 2016(b)
$7,200
 $
 $
 $7,200
Net loss
 (61) 
 (61)
Distribution to member(c)
(400) 
 
 (400)
Contribution from member1,251
 
 
 1,251
Measurement period adjustment of Exelon’s deferred tax liabilities to reflect unitary state income tax consequences of the merger35
 
 
 35
Distribution of net retirement benefit obligation to member53
 
 
 53
Assumption of member liabilities(d)
(62) 
 
 (62)
Balance, December 31, 2016$8,077

$(61)
$

$8,016
Net Income
 362
 
 362
Distribution to member
 (311) 
 (311)
Contribution from member751
 
 
 751
Allocation of tax benefit from member7
 
 
 7
Balance, December 31, 2017$8,835

$(10)
$

$8,825

__________
(a)At March 23, 2016 and December 31, 2015, PHI's (predecessor) shareholders' equity included $3,835 million and $3,829 million of other paid-in capital, and $3 million and $3 million of common stock, respectively.
(b)The March 24, 2016, beginning balance differs from the PHI Merger total purchase price by $59 million related to an acquisition accounting adjustment recorded at Exelon Corporate to reflect unitary state income tax consequences of the merger.
(c)Distribution to member includes $235 million of net assets associated with PHI's unregulated business interests and $165 million of cash, each of which were distributed by PHI to Exelon.
(d)The liabilities assumed include $29 million for PHI stock-based compensation awards and $33 million for a merger related obligation, each assumed by PHI from Exelon. See Note 4 — Mergers, Acquisitions and Dispositions.

See the Combined Notes to Consolidated Financial Statements


296143

Table of Contents



Potomac Electric Power Company
Statements of Operations and Comprehensive Income
For the Years Ended December 31,
(In millions)202220212020
Operating revenues
Electric operating revenues$2,557 $2,216 $2,102 
Revenues from alternative revenue programs(31)53 40 
Operating revenues from affiliates
Total operating revenues2,531 2,274 2,149 
Operating expenses
Purchased power795 353 324 
Purchased power from affiliate39 271 278 
Operating and maintenance284 258 248 
Operating and maintenance from affiliates223 213 205 
Depreciation and amortization417 403 377 
Taxes other than income taxes382 373 367 
Total operating expenses2,140 1,871 1,799 
Gain on sales of assets— — 
Operating income391 403 359 
Other income and (deductions)
Interest expense, net(150)(140)(138)
Other, net55 48 38 
Total other income and (deductions)(95)(92)(100)
Income before income taxes296 311 259 
Income taxes(9)15 (7)
Net income$305 $296 $266 
Comprehensive income$305 $296 $266 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Operating revenues     
Electric operating revenues$2,152
 $2,181
 $2,124
Operating revenues from affiliates6
 5
 5
Total operating revenues2,158
 2,186
 2,129
Operating expenses     
Purchased power359
 411
 719
Purchased power from affiliates255
 295
 
Operating and maintenance396
 607
 435
Operating and maintenance from affiliates58
 35
 4
Depreciation and amortization321
 295
 256
Taxes other than income371
 377
 376
Total operating expenses1,760
 2,020
 1,790
Gain on sales of assets1
 8
 46
Operating income399
 174
 385
Other income and (deductions)     
Interest expense, net(121) (127) (124)
Other, net32
 36
 28
Total other income and (deductions)(89) (91) (96)
Income before income taxes310
 83
 289
Income taxes105
 41
 102
Net income$205
 $42
 $187
Comprehensive income$205
 $42
 $187

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Potomac Electric Power Company
Statements of Cash Flows
For the Years Ended December 31,
(In millions)202220212020
Cash flows from operating activities
Net income$305 $296 $266 
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization417 403 377 
Deferred income taxes and amortization of investment tax credits(17)(8)(46)
Other non-cash operating activities36 (52)(23)
Changes in assets and liabilities:
Accounts receivable(104)(28)(67)
Receivables from and payables to affiliates, net(33)(12)
Inventories(16)(8)
Accounts payable and accrued expenses24 16 41 
Collateral received, net24 — 
Income taxes(19)11 (1)
Regulatory assets and liabilities, net(69)(81)(55)
Pension and non-pension postretirement benefit contributions(11)(11)(11)
Other assets and liabilities(66)(84)31 
Net cash flows provided by operating activities471 462 501 
Cash flows from investing activities
Capital expenditures(874)(843)(773)
Other investing activities(1)— 
Net cash flows used in investing activities(871)(844)(773)
Cash flows from financing activities
Changes in short-term borrowings124 140 (47)
Issuance of long-term debt625 275 300 
Retirement of long-term debt(310)— (3)
Dividends paid on common stock(463)(268)(232)
Contributions from parent465 244 262 
Other financing activities(10)(6)(6)
Net cash flows provided by financing activities431 385 274 
Increase in cash, restricted cash, and cash equivalents31 
Cash, restricted cash, and cash equivalents at beginning of period68 65 63 
Cash, restricted cash, and cash equivalents at end of period$99 $68 $65 
Supplemental cash flow information
Increase in capital expenditures not paid$65 $30 $
 For the Years Ended December 31,
(In millions)2017 2016 2015
Cash flows from operating activities     
Net income$205
 $42
 $187
Adjustments to reconcile net income to net cash flows provided by operating activities:     
Depreciation and amortization321
 295
 256
Impairment losses on regulatory assets14
 
 
Gain on sales of assets

(1) (8) (46)
Deferred income taxes and amortization of investment tax credits113
 153
 150
Other non-cash operating activities(5) 183
 54
Changes in assets and liabilities:     
Accounts receivable(20) (41) (43)
Receivables from and payables to affiliates, net
 44
 
Inventories(24) 1
 (5)
Accounts payable and accrued expenses(63) 32
 (21)
Income taxes81
 110
 (46)
Pension and non-pension postretirement benefit contributions(72) (32) (14)
Other assets and liabilities(142) (128) (99)
Net cash flows provided by operating activities407
 651
 373
Cash flows from investing activities     
Capital expenditures(628) (586) (544)
Proceeds from sale of long-lived assets1
 12
 54
Purchases of investments
 (30) 
Changes in restricted cash(2) (31) 3
Other investing activities(1) (12) 10
Net cash flows used in investing activities(630) (647) (477)
Cash flows from financing activities     
Changes in short-term borrowings3
 (41) (40)
Issuance of long-term debt202
 4
 208
Retirement of long-term debt(13) (11) (22)
Dividends paid on common stock(133) (136) (146)
Contributions from parent161
 187
 112
Other financing activities(1) (3) (9)
Net cash flows provided by financing activities219
 
 103
(Decrease) Increase in cash and cash equivalents(4) 4
 (1)
Cash and cash equivalents at beginning of period9
 5
 6
Cash and cash equivalents at end of period$5
 $9
 $5

See the Combined Notes to Consolidated Financial Statements


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Potomac Electric Power Company
Balance Sheets
December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$45 $34 
Restricted cash and cash equivalents54 34 
Accounts receivable
Customer accounts receivable351277
Customer allowance for credit losses(47)(37)
Customer accounts receivable, net304 240 
Other accounts receivable180160
Other allowance for credit losses(25)(16)
Other accounts receivable, net155 144 
Inventories, net135 119 
Regulatory assets235 213 
Other53 25 
Total current assets981 809 
Property, plant, and equipment (net of accumulated depreciation and amortization of $4,067 and $3,875 as of December 31, 2022 and 2021, respectively)8,794 8,104 
Deferred debits and other assets
Regulatory assets437 532 
Investments119 120 
Prepaid pension asset273 279 
Other53 59 
Total deferred debits and other assets882 990 
Total assets$10,657 $9,903 
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$5
 $9
Restricted cash and cash equivalents35
 33
Accounts receivable, net   
Customer250
 235
Other87
 150
Inventories, net87
 63
Regulatory assets213
 162
Other33
 32
Total current assets710
 684
Property, plant and equipment, net6,001
 5,571
Deferred debits and other assets   
Regulatory assets678
 690
Investments102
 102
Prepaid pension asset322
 282
Other19
 6
Total deferred debits and other assets1,121

1,080
Total assets$7,832
 $7,335

See the Combined Notes to Consolidated Financial Statements


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Potomac Electric Power Company
Balance Sheets
December 31,
(In millions)20222021
LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities
Short-term borrowings$299 $175 
Long-term debt due within one year313 
Accounts payable382 272 
Accrued expenses125 160 
Payables to affiliates34 59 
Customer deposits39 35 
Regulatory liabilities14 
Merger related obligation26 27 
Other93 55 
Total current liabilities1,008 1,110 
Long-term debt3,747 3,132 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits1,382 1,275 
Regulatory liabilities455 549 
Asset retirement obligations39 45 
Non-pension postretirement benefit obligations— 
Other244 314 
Total deferred credits and other liabilities2,120 2,186 
Total liabilities6,875 6,428 
Commitments and contingencies
Shareholder's equity
Common stock ($0.01 par value, 200 shares authorized, 0 shares(a) outstanding as of December 31, 2022 and 2021)
2,767 2,302 
Retained earnings1,015 1,173 
Total shareholder's equity3,782 3,475 
Total liabilities and shareholder's equity$10,657 $9,903 
 December 31,
(In millions)2017 2016
LIABILITIES AND SHAREHOLDER'S EQUITY   
Current liabilities   
Short-term borrowings$26
 $23
Long-term debt due within one year19
 16
Accounts payable139
 209
Accrued expenses137
 113
Payables to affiliates74
 74
Customer deposits54
 53
Regulatory liabilities3
 11
Merger related obligation42
 68
Current portion of DC PLUG obligation28
 
Other28
 29
Total current liabilities550

596
Long-term debt2,521
 2,333
Deferred credits and other liabilities   
Regulatory liabilities829
 20
Deferred income taxes and unamortized investment tax credits1,063
 1,910
Non-pension postretirement benefit obligations36
 43
Other300
 133
Total deferred credits and other liabilities2,228
 2,106
Total liabilities5,299
 5,035
Commitments and contingencies   
Shareholder's equity   
Common stock1,470
 1,309
Retained earnings1,063
 991
Total shareholder's equity2,533
 2,300
Total liabilities and shareholder's equity$7,832

$7,335
_____________

(a)In millions, shares round to zero. Number of shares is 100 outstanding as of December 31, 2022 and 2021.

See the Combined Notes to Consolidated Financial Statements


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Potomac Electric Power Company
Statements of Changes in Shareholder's Equity
(In millions)Common StockRetained EarningsTotal Shareholder's Equity
Balance, December 31, 2019$1,796 $1,111 $2,907 
Net income— 266 266 
Common stock dividends— (232)(232)
Contributions from parent262 — 262 
Balance, December 31, 2020$2,058 $1,145 $3,203 
Net income— 296 296 
Common stock dividends— (268)(268)
Contributions from parent244 — 244 
Balance, December 31, 2021$2,302 $1,173 $3,475 
Net income— 305 305 
Common stock dividends— (463)(463)
Contributions from parent465 — 465 
Balance, December 31, 2022$2,767 $1,015 $3,782 
(In millions)Common Stock Retained Earnings Total Shareholder's Equity
Balance, December 31, 2014$1,010
 $1,077
 $2,087
Net income
 187
 187
Common stock dividends
 (146) (146)
Contribution from Parent112
 
 112
Balance, December 31, 2015$1,122
 $1,118
 $2,240
Net income


 42
 42
Common stock dividends
 (169) (169)
Contribution from Parent187
 
 187
Balance, December 31, 2016$1,309
 $991
 $2,300
Net income


 205
 205
Common stock dividends
 (133) (133)
Contribution from Parent161
 
 161
Balance, December 31, 2017$1,470
 $1,063
 $2,533

See the Combined Notes to Consolidated Financial Statements


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Delmarva Power & Light Company
Statements of Operations and Comprehensive Income (Loss)
For the Years Ended December 31,
(In millions)202220212020
Operating revenues
Electric operating revenues$1,360 $1,191 $1,107 
Natural gas operating revenues238 168 162 
Revenues from alternative revenue programs(9)14 (7)
Operating revenues from affiliates
Total operating revenues1,595 1,380 1,271 
Operating expenses
Purchased power567 387 359 
Purchased fuel129 73 69 
Purchased power from affiliates10 79 75 
Operating and maintenance183 183 208 
Operating and maintenance from affiliates166 162 153 
Depreciation and amortization232 210 191 
Taxes other than income taxes72 67 65 
Total operating expenses1,359 1,161 1,120 
Operating income236 219 151 
Other income and (deductions)
Interest expense, net(66)(61)(61)
Other, net13 12 10 
Total other income and (deductions)(53)(49)(51)
Income before income taxes183 170 100 
Income taxes14 42 (25)
Net income$169 $128 $125 
Comprehensive income$169 $128 $125 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Operating revenues     
Electric operating revenues$1,131
 $1,122
 $1,132
Natural gas operating revenues161
 148
 164
Operating revenues from affiliates8
 7
 6
Total operating revenues1,300

1,277

1,302
Operating expenses     
Purchased power282
 369
 555
Purchased fuel71
 60
 79
Purchased power from affiliate179
 154
 
Operating and maintenance283
 422
 303
Operating and maintenance from affiliates32
 19
 1
Depreciation and amortization167
 157
 148
Taxes other than income57
 55
 51
Total operating expenses1,071

1,236

1,137
Gain on sales of assets
 9
 
Operating income229

50

165
Other income and (deductions)     
Interest expense, net(51) (50) (50)
Other, net14
 13
 10
Total other income and (deductions)(37)
(37)
(40)
Income before income taxes192

13

125
Income taxes71
 22
 49
Net income (loss)$121

$(9)
$76
Comprehensive income (loss)$121

$(9)
$76

See the Combined Notes to Consolidated Financial Statements


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Delmarva Power & Light Company
Statements of Cash Flows
For the Years Ended December 31,
(In millions)202220212020
Cash flows from operating activities
Net income$169 $128 $125 
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization232 210 191 
Deferred income taxes and amortization of investment tax credits16 39 (13)
Other non-cash operating activities29 51 
Changes in assets and liabilities:
Accounts receivable(59)15 (34)
Receivables from and payables to affiliates, net(10)(3)
Inventories(11)(8)(5)
Accounts payable and accrued expenses19 16 
Collateral received, net78 43 — 
Income taxes— 13 (25)
Regulatory assets and liabilities, net(34)(43)(35)
Pension and non-pension postretirement benefit contributions(1)(1)— 
Other assets and liabilities(10)(27)
Net cash flows provided by operating activities418 385 272 
Cash flows from investing activities
Capital expenditures(430)(429)(424)
Other investing activities(3)
Net cash flows used in investing activities(427)(425)(427)
Cash flows from financing activities
Changes in short-term borrowings(34)90 
Issuance of long-term debt125 125 178 
Retirement of long-term debt— — (80)
Dividends paid on common stock(143)(147)(141)
Contributions from parent147 120 112 
Other financing activities(5)(5)(2)
Net cash flows provided by financing activities90 96 157 
Increase in cash, restricted cash, and cash equivalents81 56 
Cash, restricted cash, and cash equivalents at beginning of period71 15 13 
Cash, restricted cash, and cash equivalents at end of period$152 $71 $15 
Supplemental cash flow information
Increase (decrease) in capital expenditures not paid$23 $(18)$20 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Cash flows from operating activities     
Net income (loss)$121
 $(9) $76
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:     
Depreciation and amortization167
 157
 148
Impairment losses on regulatory assets6
 
 
Deferred income taxes and amortization of investment tax credits89
 109
 73
Other non-cash operating activities9
 114
 33
Changes in assets and liabilities:     
Accounts receivable(22) (5) (24)
Receivables from and payables to affiliates, net11
 13
 3
Inventories(5) 
 6
Accounts payable and accrued expenses(8) (4) (8)
Collateral (posted) received, net
 1
 (1)
Income taxes26
 28
 (26)
Pension and non-pension postretirement benefit contributions(2) (22) 
Other assets and liabilities(71) (72) (14)
Net cash flows provided by operating activities321

310

266
Cash flows from investing activities     
Capital expenditures(428) (349) (352)
Proceeds from sales of long-lived assets
 9
 
Change in restricted cash
 
 5
Other investing activities(1) 4
 2
Net cash flows used in investing activities(429)
(336)
(345)
Cash flows from financing activities     
Change in short-term borrowings216
 (105) (1)
Issuance of long-term debt
 175
 200
Retirement of long-term debt(40) (100) (100)
Dividends paid on common stock(112) (54) (92)
Contributions from parent
 152
 75
Other financing activities
 (1) (2)
Net cash flows provided by financing activities64

67

80
(Decrease) Increase in cash and cash equivalents(44) 41
 1
Cash and cash equivalents at beginning of period46
 5
 4
Cash and cash equivalents at end of period$2

$46

$5

See the Combined Notes to Consolidated Financial Statements


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Delmarva Power & Light Company
Balance Sheets
December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$31 $28 
Restricted cash and cash equivalents121 43 
Accounts receivable
Customer accounts receivable204149
Customer allowance for credit losses(21)(18)
Customer accounts receivable, net183 131 
Other accounts receivable5258
Other allowance for credit losses(7)(8)
Other accounts receivable, net45 50 
Receivables from affiliates— 
Inventories, net
Fossil fuel18 11 
Materials and supplies58 54 
Prepaid utility taxes23 20 
Regulatory assets80 68 
Other14 16 
Total current assets573 422 
Property, plant, and equipment, (net of accumulated depreciation and amortization of $1,772 and $1,635 as of December 31, 2022 and 2021, respectively)4,820 4,560 
Deferred debits and other assets
Regulatory assets202 212 
Prepaid pension asset153 157 
Other54 61 
Total deferred debits and other assets409 430 
Total assets$5,802 $5,412 
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$2
 $46
Accounts receivable, net   
Customer146
 136
Other38
 63
Receivables from affiliates
 3
Inventories, net   
Gas held in storage7
 7
Materials and supplies36
 32
Regulatory assets69
 59
Other27
 24
Total current assets325

370
Property, plant and equipment, net3,579
 3,273
Deferred debits and other assets   
Regulatory assets245
 289
Goodwill8
 8
Prepaid pension asset193
 206
Other7
 7
Total deferred debits and other assets453

510
Total assets$4,357

$4,153

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Delmarva Power & Light Company
Balance Sheets
December 31,
(In millions)20222021
LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities
Short-term borrowings$115 $149 
Long-term debt due within one year584 83 
Accounts payable172 131 
Accrued expenses41 40 
Payables to affiliates22 33 
Customer deposits29 28 
Regulatory liabilities44 25 
Other136 59 
Total current liabilities1,143 548 
Long-term debt1,354 1,727 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits869 803 
Regulatory liabilities380 441 
Asset retirement obligations13 16 
Non-pension postretirement benefit obligations11 
Other84 89 
Total deferred credits and other liabilities1,355 1,360 
Total liabilities3,852 3,635 
Commitments and contingencies
Shareholder's equity
Common stock ($2.25 par value, 0 shares(a) authorized, 0 shares(a) outstanding as of December 31, 2022 and 2021, respectively)
1,356 1,209 
Retained earnings594 568 
Total shareholder's equity1,950 1,777 
Total liabilities and shareholder's equity$5,802 $5,412 
 December 31,
(In millions)2017 2016
LIABILITIES AND SHAREHOLDER'S EQUITY   
Current liabilities   
Short-term borrowings$216
 $
Long-term debt due within one year83
 119
Accounts payable82
 88
Accrued expenses35
 36
Payables to affiliates46
 38
Customer deposits35
 36
Regulatory liabilities42
 43
Merger related obligation
 13
Other8
 8
Total current liabilities547

381
Long-term debt1,217
 1,221
Deferred credits and other liabilities   
Regulatory liabilities593
 97
Deferred income taxes and unamortized investment tax credits603
 1,056
Non-pension postretirement benefit obligations14
 19
Other48
 53
Total deferred credits and other liabilities1,258

1,225
Total liabilities3,022

2,827
Commitments and contingencies   
Shareholder's equity   
Common stock764
 764
Retained earnings571
 562
Total shareholder's equity1,335

1,326
Total liabilities and shareholder's equity$4,357

$4,153
_____________

(a)In millions, shares round to zero. Number of shares is 1,000 authorized and 1,000 outstanding as of December 31, 2022 and 2021.
See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Delmarva Power & Light Company
Statements of Changes in Shareholder's Equity
(In millions)Common StockRetained EarningsTotal Shareholder's Equity
Balance, December 31, 2019$977 $603 $1,580 
Net income— 125 125 
Common stock dividends— (141)(141)
Contributions from parent112 — 112 
Balance, December 31, 2020$1,089 $587 $1,676 
Net income— 128 128 
Common stock dividends— (147)(147)
Contributions from parent120 — 120 
Balance, December 31, 2021$1,209 $568 $1,777 
Net income— 169 169 
Common stock dividends— (143)(143)
Contributions from parent147 — 147 
Balance, December 31, 2022$1,356 $594 $1,950 
(In millions)Common Stock Retained Earnings Total Shareholder's Equity
Balance, December 31, 2014$537
 $641
 $1,178
Net income
 76
 76
Common stock dividends
 (92) (92)
Contribution from parent75
 
 75
Balance, December 31, 2015$612
 $625

$1,237
Net loss
 (9) (9)
Common stock dividends
 (54) (54)
Contribution from parent152
 
 152
Balance, December 31, 2016$764
 $562

$1,326
Net income
 121
 121
Common stock dividends
 (112) (112)
Balance, December 31, 2017$764
 $571

$1,335

See the Combined Notes to Consolidated Financial Statements


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Atlantic City Electric Company and Subsidiary Company
Consolidated Statements of Operations and Comprehensive Income (Loss)
For the Years Ended December 31,
(In millions)202220212020
Operating revenues
Electric operating revenues$1,448 $1,362 $1,253 
Revenues from alternative revenue programs(19)24 (12)
Operating revenues from affiliates
Total operating revenues1,431 1,388 1,245 
Operating expenses
Purchased power622 677 596 
Purchased power from affiliate17 13 
Operating and maintenance189 179 192 
Operating and maintenance from affiliates142 141 134 
Depreciation and amortization261 179 180 
Taxes other than income taxes
Total operating expenses1,225 1,201 1,123 
Gain on sales of assets— — 
Operating income206 187 124 
Other income and (deductions)
Interest expense, net(66)(58)(59)
Other, net11 
Total other income and (deductions)(55)(54)(53)
Income before income taxes151 133 71 
Income taxes(13)(41)
Net income$148 $146 $112 
Comprehensive income$148 $146 $112 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Operating revenues     
Electric operating revenues$1,184
 $1,254
 $1,291
Operating revenues from affiliates2
 3
 4
Total operating revenues1,186

1,257

1,295
Operating expenses     
Purchased power541
 614
 708
Purchased power from affiliates29
 37
 
Operating and maintenance279
 410
 268
Operating and maintenance from affiliates28
 18
 3
Depreciation and amortization146
 165
 175
Taxes other than income6
 7
 7
Total operating expenses1,029

1,251

1,161
Gain on sale of assets
 1
 
Operating income157

7

134
Other income and (deductions)     
Interest expense, net(61) (62) (64)
Other, net7
 9
 3
Total other income and (deductions)(54)
(53)
(61)
Income (loss) before income taxes103

(46)
73
Income taxes26
 (4) 33
Net income (loss)$77

$(42)
$40
Comprehensive income (loss)$77

$(42)
$40

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Atlantic City Electric Company and Subsidiary Company
Consolidated Statements of Cash Flows
For the Years Ended December 31,
(In millions)202220212020
Cash flows from operating activities
Net income$148 $146 $112 
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization261 179 180 
Deferred income taxes and amortization of investment tax credits(2)(15)(37)
Other non-cash operating activities46 — 36 
Changes in assets and liabilities:
Accounts receivable(19)(37)(55)
Receivables from and payables to affiliates, net(4)
Inventories(7)(3)
Accounts payable and accrued expenses(9)
Collateral received, net46 — 
Income taxes11 — (1)
Regulatory assets and liabilities, net(19)24 (42)
Pension and non-pension postretirement benefit contributions(7)(3)(2)
Other assets and liabilities(61)(11)— 
Net cash flows provided by operating activities384 295 199 
Cash flows from investing activities
Capital expenditures(398)(445)(401)
Other investing activities
Net cash flows used in investing activities(397)(444)(395)
Cash flows from financing activities
Changes in short-term borrowings(144)(43)117 
Issuance of long-term debt175 425 123 
Retirement of long-term debt— (260)(44)
Dividends paid on common stock(145)(288)(114)
Contributions from parent175 319 117 
Other financing activities(5)(5)(1)
Net cash flows provided by financing activities56 148 198 
Increase (decrease) in cash, restricted cash, and cash equivalents43 (1)
Cash, restricted cash, and cash equivalents at beginning of period29 30 28 
Cash, restricted cash, and cash equivalents at end of period$72 $29 $30 
Supplemental cash flow information
Increase (decrease) in capital expenditures not paid$48 $(18)$33 
 For the Years Ended December 31,
(In millions)2017 2016 2015
Cash flows from operating activities     
Net income (loss)$77
 $(42) $40
Adjustments to reconcile net income (loss) to net cash from operating activities:     
Depreciation and amortization146
 165
 175
Impairment losses on regulatory assets7
 
 
Deferred income taxes and amortization of investment tax credits32
 22
 31
Other non-cash operating activities17
 155
 37
Changes in assets and liabilities:     
Accounts receivable14
 (8) (67)
Receivables from and payables to affiliates, net
 13
 1
Inventories(7) (1) (1)
Accounts payable and accrued expenses(2) 9
 9
Income taxes(11) 174
 (34)
Pension and non-pension postretirement benefit contributions(20) (17) (2)
Other assets and liabilities(47) (85) 67
Net cash flows provided by operating activities206

385

256
Cash flows from investing activities     
Capital expenditures(312) (311) (300)
Proceeds from sale of long-lived assets
 2
 
Changes in restricted cash3
 (2) (6)
Other investing activities(1) 2
 
Net cash flows used in investing activities(310)
(309)
(306)
Cash flows from financing activities     
Change in short-term borrowings108
 (5) (122)
Issuance of long-term debt
 
 150
Retirement of long-term debt(35) (48) (58)
Dividends paid on common stock(68) (63) (12)
Contributions from parent
 139
 95
Other financing activities
 (1) (2)
Net cash flows provided by financing activities5

22

51
(Decrease) Increase in cash and cash equivalents(99)
98

1
Cash and cash equivalents at beginning of period101
 3
 2
Cash and cash equivalents at end of period$2

$101

$3

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Atlantic City Electric Company and Subsidiary Company
Consolidated Balance Sheets
December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$72 $29 
Accounts receivable
Customer accounts receivable179190
Customer allowance for credit losses(41)(49)
Customer accounts receivable, net138 141 
Other accounts receivable7076
Other allowance for credit losses(14)(15)
Other accounts receivable, net56 61 
Receivables from affiliates
Inventories, net43 36 
Regulatory assets130 61 
Other
Total current assets443 333 
Property, plant, and equipment, (net of accumulated depreciation and amortization of $1,551 and $1,420 as of December 31, 2022 and 2021, respectively)3,990 3,729 
Deferred debits and other assets
Regulatory assets494 430 
Prepaid pension asset18 27 
Other34 37 
Total deferred debits and other assets546 494 
Total assets$4,979 $4,556 
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$2
 $101
Restricted cash and cash equivalents6
 9
Accounts receivable, net   
Customer92
 125
Other56
 44
Inventories, net29
 22
Regulatory assets71
 96
Other2
 2
Total current assets258

399
Property, plant and equipment, net2,706
 2,521
Deferred debits and other assets   
Regulatory assets359
 405
Long-term note receivable4
 4
Prepaid pension asset73
 84
Other45
 44
Total deferred debits and other assets481

537
Total assets(a)
$3,445

$3,457

See the Combined Notes to Consolidated Financial Statements


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Table of Contents

Atlantic City Electric Company and Subsidiary Company
Consolidated Balance Sheets
December 31,
(In millions)20222021
LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities
Short-term borrowings$— $144 
Long-term debt due within one year
Accounts payable206 165 
Accrued expenses47 44 
Payables to affiliates26 31 
Customer deposits21 18 
Regulatory liabilities26 28 
PPA termination obligation87 — 
Other58 12 
Total current liabilities474 445 
Long-term debt1,754 1,579 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits734 682 
Regulatory liabilities156 214 
Non-pension postretirement benefit obligations12 
Other100 49 
Total deferred credits and other liabilities998 957 
Total liabilities3,226 2,981 
Commitments and contingencies
Shareholder's equity
Common stock ($3.00 par value, 25 shares authorized, 9 shares outstanding as of December 31, 2022 and 2021)1,765 1,590 
Retained deficit(12)(15)
Total shareholder's equity1,753 1,575 
Total liabilities and shareholder's equity$4,979 $4,556 
 December 31,
(In millions)2017 2016
LIABILITIES AND SHAREHOLDER'S EQUITY   
Current liabilities   
Short-term borrowings$108
 $
Long-term debt due within one year281
 35
Accounts payable118
 132
Accrued expenses33
 38
Payables to affiliates29
 29
Customer deposits31
 33
Regulatory liabilities11
 25
Merger related obligation
 20
Other8
 8
Total current liabilities619

320
Long-term debt840
 1,120
Deferred credits and other liabilities   
Deferred income taxes and unamortized investment tax credits493
 917
Non-pension postretirement benefit obligations14
 34
Regulatory liabilities411
 
Other25
 32
Total deferred credits and other liabilities943

983
Total liabilities(a)
2,402

2,423
Commitments and contingencies   
Shareholder's equity   
Common stock912
 912
Retained earnings131
 122
Total shareholder's equity1,043

1,034
Total liabilities and shareholder's equity$3,445

$3,457
_____________
(a)ACE’s consolidated assets include $29 million and $32 million at December 31, 2017 and 2016, respectively, of ACE’s consolidated VIE that can only be used to settle the liabilities of the VIE. ACE’s consolidated liabilities include $90 million and $126 million at December 31, 2017 and 2016, respectively, of ACE’s consolidated VIE for which the VIE creditors do not have recourse to ACE. See Note 2 - Variable Interest Entities.


See the Combined Notes to Consolidated Financial Statements


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Atlantic City Electric Company and Subsidiary Company
Consolidated Statements of Changes in Shareholder's Equity
(In millions)Common StockRetained Earnings (Deficit)Total Shareholder's Equity
Balance, December 31, 2019$1,154 $129 $1,283 
Net income— 112 112 
Common stock dividends— (114)(114)
Contributions from parent117 — 117 
Balance, December 31, 2020$1,271 $127 $1,398 
Net income— 146 146 
Common stock dividends— (288)(288)
Contributions from parent319 — 319 
Balance, December 31, 2021$1,590 $(15)$1,575 
Net income— 148 148 
Common stock dividends— (145)(145)
Contributions from parent175 — 175 
Balance, December 31, 2022$1,765 $(12)$1,753 
(In millions)Common Stock Retained Earnings Total Shareholder's Equity
Balance, December 31, 2014$678
 $199
 $877
Net income
 40
 40
Common stock dividends
 (12) (12)
Contribution from parent95
 
 95
Balance, December 31, 2015$773

$227
 $1,000
Net loss
 (42) (42)
Common stock dividends
 (63) (63)
Contribution from parent139
 
 139
Balance, December 31, 2016$912

$122
 $1,034
Net income
 77
 77
Common stock dividends
 (68) (68)
Balance, December 31, 2017$912

$131
 $1,043



See the Combined Notes to Consolidated Financial Statements


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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Index to Combined Notes to Consolidated Financial Statements
The notes to the consolidated financial statements that follow are a combined presentation. The following list indicates the Registrants to which the footnotes apply:
Applicable Notes
Note 1 — Significant Accounting Policies
Registrant12345678910111213141516171819202122232425262728
Exelon Corporation............................
Exelon Generation Company, LLC.................. . .......
Commonwealth Edison Company... ..   ........ ..  ......
PECO Energy Company... ..  ......... .. ...... 
Baltimore Gas and Electric Company... ..  . ....... ..  ..... 
Pepco Holdings LLC....... .......... . ...... 
Potomac Electric Power Company......  ......... ..  ..... 
Delmarva Power & Light Company......  ......... ..  ..... 
Atlantic City Electric Company... ..  ......... ..  ..... 
1. Significant Accounting Policies (All Registrants)
Description of Business (All Registrants)
Exelon is a utility services holding company engaged through its principal subsidiaries in the energy generation and energy distribution and transmission businesses. Prior to March 23, 2016, Exelon's principal, wholly owned subsidiaries included Generation, ComEd, PECO and BGE. On March 23, 2016, in conjunction with the Amended and Restated Agreement and Plan of Merger (the PHI Merger Agreement), Purple Acquisition Corp, a wholly owned subsidiary of Exelon, merged with and into PHI, with PHI continuing as the surviving entity as a wholly owned subsidiary of Exelon. PHI is a utility services holding company engaged through its principal wholly owned subsidiaries, Pepco, DPL and ACE, in the energy distribution and transmission businesses. Referbusinesses through ComEd, PECO, BGE, Pepco, DPL, and ACE.
On February 21, 2021, Exelon’s Board of Directors approved a plan to separate the Utility Registrants and Generation. The separation was completed on February 1, 2022, creating two publicly traded companies, Exelon and Constellation. See Note 42Mergers, Acquisitions and DispositionsDiscontinued Operations for further information regarding the merger transaction.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

additional information.
Name of RegistrantBusinessService Territories
Exelon Generation
Company, LLC
Generation, physical delivery and marketing of power across multiple geographical regions through its customer-facing business, Constellation, which sells electricity to both wholesale and retail customers. Generation also sells natural gas, renewable energy and other energy-related products and services.Six reportable segments: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Power Regions
Commonwealth Edison CompanyPurchase and regulated retail sale of electricityNorthern Illinois, including the City of Chicago
Transmission and distribution of electricity to retail customers
PECO Energy CompanyPurchase and regulated retail sale of electricity and natural gasSoutheastern Pennsylvania, including the City of Philadelphia (electricity)
Transmission and distribution of electricity and distribution of natural gas to retail customers
Pennsylvania counties surrounding the City of Philadelphia (natural gas)

Baltimore Gas and Electric CompanyPurchase and regulated retail sale of electricity and natural gasCentral Maryland, including the City of Baltimore (electricity and natural gas)
Transmission and distribution of electricity and distribution of natural gas to retail customers
Pepco Holdings LLCUtility services holding company engaged, through its reportable segments Pepco, DPL, and ACEService Territories of Pepco, DPL, and ACE
Potomac Electric
Power Company
Purchase and regulated retail sale of electricityDistrict of Columbia, and major portions of Montgomery and Prince George’s Counties, Maryland.
Transmission and distribution of electricity to retail customers
Delmarva Power &  Light CompanyPurchase and regulated retail sale of electricity and natural gasPortions of Delaware and Maryland (electricity)
Transmission and distribution of electricity and distribution of natural gas to retail customersPortions of New Castle County, Delaware (natural gas)
Atlantic City Electric CompanyPurchase and regulated retail sale of electricityPortions of Southern New Jersey
Transmission and distribution of electricity to retail customers
Basis of Presentation (All Registrants)
This is a combined annual report of all Registrants. The Notes to the Consolidated Financial Statements apply to the Registrants as indicated above in the Index to Combined Notes to Consolidated Financial Statements and parenthetically next to each corresponding disclosure. When appropriate, the Registrants are named specifically for their related activities and disclosures. Each of the Registrant’s Consolidated Financial Statements includes the accounts of its subsidiaries. All intercompany transactions have been eliminated.
As a result of the acquisition of PHI, Exelon’s financial reporting reflects PHI’s consolidated financial results subsequent to the March 23, 2016, acquisition date.  Exelon has accountedeliminated, except for the merger transaction applyinghistorical transactions between the acquisition methodUtility Registrants and Generation for the purposes of accounting, which requirespresenting discontinued operations in all periods presented in the assets acquiredConsolidated Statements of Operations and liabilities assumed by Exelon to be reported in Exelon’s financial statements at fair value, with any excess of the purchase price over the fair value of net assets acquired reported as goodwill.  Exelon has pushed-down the application of the acquisition method of accounting to the consolidated financial statements of PHI such that the assets and liabilities of PHI are similarly recorded at their respective fair values, and goodwill has been established as of the acquisition date.  Accordingly, the consolidated financial statements of PHI for periods before and after the March 23, 2016, acquisition date reflect different bases of accounting, and the results of operations and the financial positions of the predecessor and successor periods are not comparable.  The acquisition method of accounting has not been pushed down to PHI’s wholly owned subsidiary utility registrants, Pepco, DPL and ACE.
For financial statement purposes, beginning on March 24, 2016, disclosures related to Exelon now also apply to PHI, Pepco, DPL and ACE, unless otherwise noted.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Comprehensive Income.
Through its business services subsidiary, BSC, Exelon provides its subsidiaries with a variety of support services at cost, including legal, human resources, financial, information technology, and supply management services. PHI also has a business services subsidiary, PHISCO, which provides a variety of support services at cost, including legal, finance, engineering, customer operations, distribution and transmission planning, asset management, system operations, and power procurement, to PHI operating companies. The costs of BSC including support services,and PHISCO are directly charged or allocated to the applicable subsidiaries using a cost-causative allocation method. Corporate governance-type costs that cannot be directly assigned are allocated based on a Modified Massachusetts Formula, which is a method that utilizes a combination of gross revenues, total assets and direct labor costs for the allocation base.subsidiaries. The results of Exelon’s corporate operations are presented as “Other” within the consolidated financial statements and include intercompany eliminations unless otherwise disclosed.
PHISCO, a wholly owned subsidiary of PHI, provides a variety of support services at cost, including legal, accounting, engineering, distribution and transmission planning, asset management, system operations, and power procurement, to PHI and its operating subsidiaries. These services are directly charged or allocated pursuant to service agreements among PHISCO and the participating operating subsidiaries.
Exelon owns 100% of its significant consolidated subsidiaries, including PHI, either directly or indirectly, except for ComEd, of which Exelon owns more than 99%. As of December 31, 2017,2022 and 2021, Exelon owned none100% of BGE's preferred securities, whichPECO, BGE, redeemed in 2016. Exelon has reflected the third-party interests in ComEd, which totaled lessand PHI and more than $1 million at December 31, 2017 and December 31, 2016, as equity, in its consolidated financial statements. BGE is subject to certain ring-fencing measures established by order99% of the MDPSC. As part of this arrangement, BGE common stock is held directly by RF Holdco LLC, which is an indirect subsidiary of Exelon. GSS Holdings (BGE Utility), an unrelated party, holds a nominal non-economic interest in RF Holdco LLC with limited voting rights on specified matters. PHI is subject to some ring-fencing measures established by orders of the DCPSC, DPSC, MDPSC and NJBPU, pursuant to which all of the membership interest in PHI is held directly by PH Holdco LLC, which is an indirect subsidiary of Exelon. GSS Holdings (PH Utility), Inc., an unrelated party, holds a nominal non-economic interest in PH Holdco LLC with limited voting rights on specified matters.ComEd. PHI owns 100% of its subsidiaries including Pepco, DPL, and ACE.
Generation owns As of December 31, 2021, Exelon owned 100% of its significant consolidated subsidiaries, either directly or indirectly, except for certain consolidated VIEs, including CENG and ExGen Renewables Partners, LLC,Generation. As of which Generation holdsFebruary 1, 2022, as a 50.01% and 51% interest, respectively. The remaining interests in these consolidated VIEs are included in noncontrolling interests on Exelon’s and Generation’s Consolidated Balance Sheets. See Note 2 — Variable Interest Entities for further discussion of Exelon’s and Generation’s consolidated VIEs.
The Registrants consolidate the accounts of entities in which a Registrant has a controlling financial interest, after the elimination of intercompany transactions. A controlling financial interest is evidenced by either a voting interest greater than 50% in which the Registrant can exercise control over the operations and policiesresult of the investee, orcompletion of the resultsseparation, Exelon no longer owns any interest in Generation. The separation of a model that identifies the Registrant or one ofConstellation, including Generation and its subsidiaries, asmeets the primary beneficiary
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Table of a VIE. Where the Registrants do not have a controlling financial interest in an entity, proportionate consolidation, equity method accounting or cost method accounting is applied. The Registrants apply proportionate consolidation when they have an undivided interest in an asset and are proportionately liable for their share of each liability associated with the asset. The Registrants proportionately consolidate their undivided ownership interests in jointly owned electric plants and transmission facilities. Under proportionate consolidation, the Registrants separately record their proportionate share of the assets, liabilities, revenues and expenses related to the undivided interest in the asset. The Registrants apply equity method accounting when they have significant influence over an investee through an ownership in common stock, which generally approximates a 20% to 50% voting interest. The Registrants apply equity method accounting to certain investments and joint ventures, including certain financing trusts of ComEd, PECO and BGE. Under equity method accounting, the Registrants report their interest in the entity as an investment and the Registrants’ percentage share of the earnings from the entity as single line items in their financial statements. The Registrants use cost

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 1 — Significant Accounting Policies
method accounting if they lack significant influence, which generallycriteria for discontinued operations and as such, its results when they hold less than 20%of operations are presented as discontinued operations and have been excluded from continuing operations for all periods presented. Accounting rules require that certain BSC costs previously allocated to Generation be presented as part of Exelon’s continuing operations as these costs do not qualify as expenses of the common stockdiscontinued operations. Comprehensive income, shareholders' equity, and cash flows related to Generation have not been segregated and are included in the Consolidated Statements of an entity. Under cost method accounting, the Registrants report their investments at costOperations and recognize income only to the extent dividends or distributions are received.Comprehensive Income, Consolidated Statements of Changes in Shareholders’ Equity, and Consolidated Statements of Cash Flows, respectively, for all periods presented. See Note 2 — Discontinued Operations for additional information.
The accompanying consolidated financial statements have been prepared in accordance with GAAP for annual financial statements and in accordance with the instructions to Form 10-K and Regulation S-X promulgated by the SEC.
COVID-19 (All Registrants)
The Registrants have taken steps to mitigate the potential risks posed by the global outbreak (pandemic) of the 2019 novel coronavirus (COVID-19). The Registrants provide a critical service to their customers and have taken measures to keep employees who operate the business safe and minimize unnecessary risk of exposure to the virus, including extra precautions for employees who work in the field. The Registrants have implemented work from home policies where appropriate and imposed travel limitations on employees.

Management makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and accompanying notes, and the amounts of revenues and expenses reported during the periods covered by those financial statements and accompanying notes. As of December 31, 2022 and 2021, and through the date of this report, management assessed certain accounting matters that require consideration of forecasted financial information, including, but not limited to, allowance for credit losses and the carrying value of goodwill and other long-lived assets, in context with the information reasonably available and the unknown future impacts of COVID-19. The Registrants' future assessment of the magnitude and duration of COVID-19, as well as other factors, could result in material impacts to their consolidated financial statements in future reporting periods.
Use of Estimates (All Registrants)
The preparation of financial statements of each of the Registrants in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Areas in which significant estimates have been made include, but are not limited to, the accounting for nuclear decommissioning costs and other AROs, pension and other postretirement benefits, the application of purchase accounting,OPEB, unbilled energy revenues, allowance for credit losses, inventory reserves, allowance for uncollectible accounts, goodwill and long-lived asset impairments,impairment assessments, derivative instruments, unamortized energy contracts, fixed asset depreciation, environmental costs and other loss contingencies, taxesAROs, and unbilled energy revenues.taxes. Actual results could differ from those estimates.
Prior Period Adjustments and Reclassifications (Exelon, PHI, ACE)
In the first quarter of 2022, management identified an error related to an overstatement of the regulatory liability associated with ACE’s mechanism to recover the cost of Transition Bonds issued in 2002 and 2003 by ACE Funding. Management has concluded that the error was not material to previously issued financial statements for Exelon, PHI or ACE.
The error was corrected through a revision to ACE’s financial statements contained herein. The impact of the error correction was an $8 million increase to ACE’s opening Retained earnings as of January 1, 2021 with a corresponding reduction to Regulatory liabilities of $11 million and an increase to Deferred income taxes and unamortized investment tax credits of $3 million. The impact of the error to ACE’s Total operating revenues and Net income was less than $1 million for the year ended December 31, 2021. The error did not impact net cash flows provided by operating activities, net cash flows used in investing activities or net cash flows provided by financing activities for the year ended December 31, 2021.
The error was corrected in the Exelon and PHI financial statements for the year ended December 31, 2022 as it was not material, resulting in an increase to Net income of $8 million.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 1 — Significant Accounting Policies
Regulatory Accounting (All Registrants)
Certain prior year amounts inFor their regulated electric and gas operations, the Registrants' Consolidated Statements of Operations and Comprehensive Income, Consolidated Statements of Cash Flows, Consolidated Balance Sheets and Consolidated Statements of Changes in Shareholders' Equity have been reclassified between line items for comparative purposes. The reclassifications did not affect any of the Registrants’ net income, cash flows from operating activities or financial positions.
Accounting for the Effects of Regulation (Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE)
The Registrants apply the authoritative guidance for accounting for certain types of regulation, which requires them to record in their consolidated financial statementsreflect the effects of cost-based rate regulation in their financial statements, which is required for entities with regulated operations that meet the following criteria: 1)(1) rates are established or approved by a third-party regulator; (2) rates are designed to recover the entities’ cost of providing services or products; and (3) there is a reasonable expectation that rates designed to recover costs can be charged to and collected from customers. Exelon and the UtilityThe Registrants account for their regulated operations in accordance with regulatory and legislative guidance from the regulatory authorities having jurisdiction, principally the ICC, PAPUC, MDPSC, DCPSC, DPSCDEPSC, and NJBPU, under state public utility laws and the FERC under various Federal laws. Regulatory assets and liabilities are amortized and the related expense or revenue is recognized in the Consolidated Statements of Operations consistent with the recovery or refund included in customer rates. Exelon believes that it is probable that its currently recordedThe Registrants' regulatory assets and liabilities will beas of the balance sheet date are probable of being recovered andor settled respectively, in future rates. Exelon and the Utility Registrants continue to evaluate their respective abilities to continue to apply the authoritative guidance for accounting for certain types of regulation, including consideration of current events in their respective regulatory and political environments. If a separable portion of the Registrants' business was no longer able to meet the criteria discussed above, the affected entities would be required to eliminate from their consolidated financial statements the effects of regulation for that portion, which could have a material impact on their results of operations and financial positions.statements. See Note 3 — Regulatory Matters for additional information.
With the exception of income tax-related regulatory assets and liabilities, the Registrants classify regulatory assets and liabilities with a recovery or settlement period greater than one year as both current and non-currentnoncurrent in their Consolidated Balance Sheets, with the current portion representing the amount expected to be recovered from or settledrefunded to customers over the next twelve-month period as of the balance sheet date. Income tax-related regulatory assets and liabilities are classified entirely as non-

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollarsnoncurrent in millions, except per share data unless otherwise noted)

current on the Registrants’ Consolidated Balance Sheets to align with the classification of the related deferred income tax balances.
The Registrants treat the impacts of a final rate order received after the balance sheet date but prior to the issuance of the financial statements as a non-recognized subsequent event, as the receipt of a final rate order is a separate and distinct event that has future impacts on the parties affected by the order.
Revenues (All Registrants)
Operating Revenues
OperatingRevenues. The Registrants’ operating revenues are recorded as service is renderedgenerally consist of revenues from contracts with customers involving the sale and delivery of power and natural gas and utility revenues from ARP. The Registrants recognize revenue from contracts with customers to depict the transfer of goods or energy is deliveredservices to customers.customers in an amount that the entities expect to be entitled to in exchange for those goods or services. The primary sources of revenue include regulated electric and natural gas tariff sales, distribution, and transmission services. At the end of each month, the Registrants accrue an estimate for the unbilled amount of energy delivered or services provided to customers.
ComEd records ARP revenue for its best estimate of itsthe electric distribution, energy efficiency, and transmission revenue impacts resulting from future changes in rates that ComEd believes are probable of approval by the ICC and FERC in accordance with its formula rate mechanisms. BGE, Pepco, DPL, and ACE record ARP revenue for their best estimate of the electric and natural gas distribution revenue impacts resulting from future changes in rates that they believe are probable of approval by the MDPSC, DCPSC, and/or NJBPU in accordance with their revenue decoupling mechanisms. PECO, BGE, Pepco, DPL, and ACE record ARP revenue for their best estimate of the transmission revenue impacts resulting from future changes in rates that they each believe are probable of approval by FERC in accordance with their formula rate mechanisms. The companies recognize all ARP revenues that will be collected within 24 months of the end of the annual period in which they are recorded. See Note 3 — Regulatory Matters and Note 5 — Accounts Receivable for furtheradditional information.
RTOsTaxes Directly Imposed on Revenue-Producing Transactions. The Registrants collect certain taxes from customers such as sales and ISOs
In RTOgross receipts taxes, along with other taxes, surcharges, and ISO marketsfees, that facilitateare levied by state or local governments on the dispatchsale or distribution of energyelectricity and energy-related products,gas. Some of these taxes are imposed on the customer, but paid by the Registrants, generally reportwhile others are imposed on the Registrants. Where these taxes are imposed on the customer, such as sales and purchases conductedtaxes, they are reported on a net hourly basis in either revenues or purchased power on theirwith no impact to the Consolidated Statements of Operations and Comprehensive Income, the classification of which dependsIncome. However, where these taxes are imposed on the net hourly activity. In addition, capacity revenue and expense classification is basedRegistrants, such as gross receipts taxes or other surcharges or fees, they are reported on a gross basis. Accordingly, revenues are recognized for the net sale or purchase position of Exelon in the different RTOs and ISOs.
Option Contracts, Swaps and Commodity Derivatives
Certain option contracts and swap arrangements that meet the definition of derivative instruments are recorded at fair valuetaxes collected from customers along with subsequent changes in fair value recognized as revenue or expense. The classification of revenue or expense is based on the intent of the transaction. For example, gas transactions may be used to hedge the sale of power. This will result in the change in fair value recorded through revenue. To the extent a Utility Registrant receives full cost recovery for energy procurement and related costs from retail customers, it records the fair value of its energy swap contracts with unaffiliated suppliers as well as an offsetting regulatoryexpense. See Note 22 — Supplemental Financial Information for taxes that are presented on a gross basis.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 1 — Significant Accounting Policies
Leases (All Registrants)
The Registrants recognize a ROU asset orand lease liability for operating and finance leases with a term of greater than one year. Operating lease ROU assets are included in Other deferred debits and other assets and operating lease liabilities are included in Other current liabilities and Other deferred credits and other liabilities on itsthe Consolidated Balance Sheets. ReferFinance lease ROU assets are included in Plant, property, and equipment, net and finance lease liabilities are included in Long-term debt due within one year and Long-term debt on the Consolidated Balance Sheets. The ROU asset is measured as the sum of (1) the present value of all remaining fixed and in-substance fixed payments using the rate implicit in the lease whenever that is readily determinable or each Registrant’s incremental borrowing rate, (2) any lease payments made at or before the commencement date (less any lease incentives received), and (3) any initial direct costs incurred. The lease liability is measured the same as the ROU asset, but excludes any payments made before the commencement date and initial direct costs incurred. Lease terms include options to extend or terminate the lease if it is reasonably certain they will be exercised. The Registrants include non-lease components for most asset classes, which are service-related costs that are not integral to the use of the asset, in the measurement of the ROU asset and lease liability.
Expense for operating leases and leases with a term of one year or less is recognized on a straight-line basis over the term of the lease, unless another systematic and rational basis is more representative of the derivation of benefit from use of the leased property. Variable lease payments are recognized in the period in which the related obligation is incurred. Operating lease expense, finance lease expense, and variable lease payments are primarily recorded to Operating and maintenance expense on the Registrants’ Statements of Operations and Comprehensive Income.
Income from operating leases, including subleases, is recognized on a straight-line basis over the term of the lease, unless another systematic and rational basis is more representative of the pattern in which income is earned over the term of the lease. Variable lease income is recognized in the period in which the related obligation is performed. Operating lease income and variable lease income are recorded to Operating revenues on the Registrants’ Statements of Operations and Comprehensive Income.
The Registrants’ operating and finance leases consist primarily of real estate including office buildings and vehicles and equipment. The Registrants account for land right arrangements that provide for exclusive use as leases while shared use land arrangements are generally not leases. The Registrants do not account for secondary use pole attachments as leases.
See Note 310Regulatory Matters and Note 12 — Derivative Financial InstrumentsLeases for furtheradditional information.
Income Taxes (All Registrants)
Deferred Federalfederal and state income taxes are recorded on significant temporary differences between the book and tax basis of assets and liabilities and for tax benefits carried forward. Investment tax credits have been deferred onin the Registrants’ Consolidated Balance Sheets and are recognized in book income over the life of the related property. In accordance with applicable authoritative guidance, theThe Registrants account for uncertain income tax positions using a benefit recognition model with a two-step approach; a more-likely-than-not recognition criterion; and a measurement approach that measures the position as the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement. If it is not more-likely-than-not that the benefit of the tax position will be sustained on its technical merits, no benefit is recorded. Uncertain tax positions that relate only to timing of when an item is included on a tax return are considered to have met the recognition threshold. The Registrants recognize accrued interest related to unrecognized tax benefits in Interest expense, net or Other, income and

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

deductionsnet (interest income) and recognize penalties related to unrecognized tax benefits in Other, net onin their Consolidated Statements of Operations and Comprehensive Income.
In the first quarter of 2016, PHI, Pepco, DPL and ACE changed their accounting for classification of interest on uncertain tax positions. PHI, Pepco, DPL and ACE have reclassified interest on uncertain tax positions as Interest expense from Income tax expense in the Consolidated Statements of Operations and Comprehensive Income. GAAP does not address the preferability of one acceptable method of accounting over the other for the classification of interest on uncertain tax positions. However, PHI, Pepco, DPL and ACE believe this change is preferable for comparability of their financial statements with the financial statements of the other Registrants in the combined filing, for consistency with FERC classification and for a more appropriate representation of the effective tax rate as they manage the settlement of uncertain tax positions and interest expense separately. PHI, Pepco, DPL and ACE applied the change retrospectively. The reclassification in the Consolidated Statements of Operations and Comprehensive Income for the year ended December 31, 2015 was $34 million and $4 million for PHI and Pepco, respectively. The impact on all other PHI Registrants for the year ended December 31, 2015 was less than $1 million.
Pursuant to the IRC and relevant state taxing authorities, Exelon and its subsidiaries file consolidated or combined income tax returns for Federal and certain state jurisdictions where allowed or required. See Note 14 — Income Taxes for further information.
Taxes Directly Imposed on Revenue-Producing Transactions (All Registrants)
The Registrants collect certain taxes from customers such as sales and gross receipts taxes, along with other taxes, surcharges and fees that are levied by state or local governments on the sale or distribution of gas and electricity. Some of these taxes are imposed on the customer, but paid by the Registrants, while others are imposed on the Registrants. Where these taxes are imposed on the customer, such as sales taxes, they are reported on a net basis with no impact to the Consolidated Statements of Operations and Comprehensive Income. However, where these taxes are imposed on the Registrants, such as gross receipts taxes or other surcharges or fees, they are reported on a gross basis. Accordingly, revenues are recognized for the taxes collected from customers along with an offsetting expense. See Note 24 — Supplemental Financial Information for Generation’s, ComEd’s, PECO’s, BGE’s, Pepco's, DPL's and ACE's utility taxes that are presented on a gross basis.
Cash and Cash Equivalents (All Registrants)
The Registrants consider investments purchased with an original maturity of three months or less to be cash equivalents.
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(Dollars in millions, except per share data unless otherwise noted)

Note 1 — Significant Accounting Policies
Restricted Cash and Cash Equivalents (All Registrants)
Restricted cash and cash equivalents represent funds that are restricted to satisfy designated current liabilities. As of December 31, 20172022 and 2016, Exelon Corporate’s2021, the Registrants' restricted cash and cash equivalents primarily represented restricted funds for paymentthe following items:
RegistrantDescription
ExelonPayment of medical, dental, vision, and long-term disability benefits, in addition to the items listed below for the Utility Registrants.
ComEdCollateral held from suppliers associated with energy and REC procurement contracts, any over-recovered RPS costs and alternative compliance payments received from RES pursuant to FEJA, and costs for the remediation of an MGP site.
PECOProceeds from the sales of assets that were subject to PECO’s mortgage indenture.
BGEProceeds from the loan program for the completion of certain energy efficiency measures and collateral held from energy suppliers.
PHI(a)
Payment of merger commitments, collateral held from its energy suppliers associated with procurement contracts, and repayment of Transition Bonds
PepcoPayment of merger commitments and collateral held from energy suppliers.
DPLCollateral held from energy suppliers.
ACE(a)
Repayment of Transition Bonds
__________
(a) As of medical, dental, vision and long-term disability benefits. Generation’s restricted cash and cash equivalents primarily included cash at various project-specific nonrecourse financing structures for debt service and financing of operations ofDecember 31, 2021, the underlying entities, see Note 13 — Debt and Credit Agreements for additional information on Generation’s project- specific financing structures. ComEd’s restricted cash primarily represented cash collateral held from suppliers associated with ComEd’s energy and REC procurement contracts, any over-recovered RPS costs and alternative compliance payments received from RES pursuant to FEJA and certain funds set aside for the remediation of one of ComEd's MGP sites. PECO’s restricted cash primarily represented funds from the sales of assets thatTransition Bonds were subject to PECO’s mortgage indenture. BGE’s restricted cash primarily represented funds restricted for certain energy conservation incentive programs. PHI Corporate's restricted cash and cash equivalents primarily represented funds restricted for the payment

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

of merger commitments and cash collateral held from its utility suppliers. Pepco's restricted cash and cash equivalents primarily represented funds restricted for the payment of merger commitments and collateral held from its utility suppliers. DPL's restricted cash and cash equivalents primarily represented cash collateral held from suppliers associated with procurement contracts. ACE's restricted cash and cash equivalents primarily represented funds restricted at its consolidated variable interest entity for repayment of transition bonds and cash collateral held from suppliers.fully redeemed.
Restricted cash and cash equivalents not available to satisfy current liabilities are classified as noncurrent assets. As of December 31, 2022 and 2021, the Registrants' noncurrent restricted cash and cash equivalents primarily represented ComEd’s over-recovered RPS costs and alternative compliance payments received from RES pursuant to FEJA and costs for the remediation of an MGP site.
See Note 16 — Debt and Credit Agreements and Note 22 — Supplemental Financial Information for additional information.
Allowance for UncollectibleCredit Losses on Accounts Receivables (All Registrants)
The allowance for uncollectible accountscredit losses reflects the Registrants’ best estimates of losses on the customers' accounts receivable balances. For Generation, the allowance isbalances based on accounts receivable aging historical experience, current information, and other currently available information. ComEd, PECO, BGE, Pepco, DPLreasonable and ACE estimate thesupportable forecasts.
The allowance for uncollectible accounts on customer receivablescredit losses is developed by applying loss rates developed specifically for each companyUtility Registrant, based on historical loss experience, current conditions, and forward-looking risk factors, to the outstanding receivable balance by customer risk segment. Risk segments represent a group of customers with similar credit quality indicators that are comprised based on various attributes, including delinquency of their balances and payment history.  Loss rates applied to the accounts receivable balances are based on a historical average of charge-offs as a percentage of accounts receivable in each risk segment. Utility Registrants' customer accounts are generally considered delinquent if the amount billed is not received by the time the next bill is issued, which normally occurs on a monthly basis. Utility Registrants' customer accounts are written off consistent with approved regulatory requirements. UtilityAdjustments to the allowance for credit losses are primarily recorded to Operating and maintenance expense on the Registrants' allowances for uncollectible accounts will continue to be affected by changes in volume, pricesConsolidated Statements of Operations and economic conditions as well as changes in ICC, PAPUC, MDPSC, DCPSC, DPSCComprehensive Income or Regulatory assets and NJBPU regulations.liabilities on the Registrants' Consolidated Balance Sheets. See Note 3 - Regulatory Matters for additional information regarding the regulatory recovery of uncollectiblecredit losses on customer accounts receivable at ComEdreceivable.

The Registrants have certain non-customer receivables in Other deferred debits and ACE.
Variable Interest Entities (All Registrants)
Exelon accountsother assets which primarily are with governmental agencies and other high-quality counterparties with no history of default. As such, the allowance for its investments incredit losses related to these receivables is not material.  The Registrants monitor these balances and arrangements with VIEs based on the authoritative guidance which includes the following specific requirements:
requireswill record an entity to qualitatively assess whether it should consolidate a VIE based on whether the entity has a controlling financial interest, meaning (1) has the power to direct the activities that most significantly impact the VIE's economic performance, and (2) has the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the VIE,
requires an ongoing reconsideration of this assessment instead of only upon certain triggering events, and
requires the entity that consolidates a VIE (the primary beneficiary) to disclose (1) the assets of the consolidated VIE,allowance if they can be used to only settle specific obligations of the consolidated VIE, and (2) the liabilitiesthere are indicators of a consolidated VIE for which creditors do not have recourse to the generaldecline in credit of the primary beneficiary.
quality. See Note 26Variable Interest EntitiesAccounts Receivable for additional information.
Inventories (All Registrants)
Inventory is recorded at the lower of weighted average cost or net realizable value. Provisions are recorded for excess and obsolete inventory. Fossil fuel and materials and supplies are generally included in inventory when purchased. Fossil fuel is expensed to Purchased power and fuel expense when used or sold. Materials and supplies generally includes transmission and distribution materials and are expensed to Operating and maintenance or capitalized to Property, plant, and equipment, as appropriate, when installed or used.

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Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Fossil Fuel
Fossil fuel inventory includes natural gas held in storage, propane and oil. The costs of natural gas, propane and oil are generally included in inventory when purchased and charged to purchased power and fuel expense at weighted average cost when used or sold.
Materials and Supplies
Materials and supplies inventory generally includes transmission, distribution and generating plant materials. Materials are generally charged to inventory when purchased and expensed or capitalized to property, plant and equipment, as appropriate, at weighted average cost when installed or used.
Emission Allowances
Emission allowances are included in inventory (for emission allowances exercisable in the current year) and other deferred debits (for emission allowances that are exercisable beyond one year) and charged to purchased power and fuel expense at weighted average cost as they are used in operations.
Marketable Securities (All Registrants)
All marketable securities are reported at fair value. Marketable securities held in the NDT funds are classified as trading securities, and all other securities are classified as available-for-sale securities. Realized and unrealized gains and losses, net of tax, on Generation’s NDT funds associated with the Regulatory Agreement Units are included in regulatory liabilities at Exelon, ComEd and PECO and in Noncurrent payables to affiliates at Generation and in Noncurrent receivables from affiliates at ComEd and PECO. Realized and unrealized gains and losses, net of tax, on Generation’s NDT funds associated with the Non-Regulatory Agreement Units are included in earnings at Exelon and Generation. Unrealized gains and losses, net of tax, for Exelon's available-for-sale securities are reported in OCI. Exelon’s and Generation’s NDT funds, which are designated to satisfy future decommissioning obligations, are classified as either noncurrent or current assets, depending on the timing of the decommissioning activities and income taxes on trust earnings. Beginning JanuaryNote 1 2018, the authoritative guidance eliminates the available-for-sale classification for equity securities and requires that all equity investments (other than those accounted for using the equity method of accounting) be measured and recorded at fair value with any changes in fair value recorded through earnings. The new authoritative guidance does not impact the classification or measurement of investments in debt securities. See Note 3 Regulatory Matters for additional information regarding ComEd’s and PECO’s regulatory assets and liabilities and Note 11 — Fair Value of Financial Assets and Liabilities and Note 15 — Asset Retirement Obligations for information regarding marketable securities held by NDT funds.Significant Accounting Policies
Property, Plant, and Equipment (All Registrants)
Property, plant, and equipment is recorded at original cost. Original cost includes construction-related direct labor and material costs. The Utility Registrants also includecosts and indirect construction costs including labor and related costs of departments associated with supporting construction activities. When appropriate, original cost also includes capitalized interest for Generation, Exelon Corporate and PHI and AFUDC for regulated property at ComEd, PECO, BGE, Pepco, DPL and ACE.the Utility Registrants. The cost of repairs and maintenance including planned major maintenance activities and minor replacements of property is charged to Operating and maintenance expense as incurred.
Third parties reimburse the Utility Registrants for all or a portion of expenditures for certain capital projects. Such contributions in aid of construction costs (CIAC) are recorded as a reduction to Property, plant, and equipment. DOE SGIG and other funds reimbursed to the Utility Registrants have been accounted for as CIAC.equipment, net.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

For Generation, upon retirement, the cost of property is generally charged to accumulated depreciation in accordance with the composite and group methods of depreciation. Upon replacement of an asset, the costs to remove the asset, net of salvage, are capitalized to gross plant when incurred as part of the cost of the newly-installed asset and recorded to depreciation expense over the life of the new asset. Removal costs, net of salvage, incurred for property that will not be replaced is charged to Operating and maintenance expense as incurred.
For the Utility Registrants, upon retirement, the cost of property, net of salvage, is charged to accumulated depreciation consistent with the composite and group methods of depreciation. Depreciation expense at ComEd, BGE, Pepco, DPL, and ACE includes the estimated cost of dismantling and removing plant from service upon retirement. Actual incurred removal costs are applied against a related regulatory liability or recorded to a regulatory asset if in excess of previously collected removal costs. PECO’s removal costs are capitalized to accumulated depreciation when incurred and recorded to depreciation expense over the life of the new asset constructed consistent with PECO’s regulatory recovery method.
See Note 6 — Property, PlantCapitalized Software. Certain costs, such as design, coding, and Equipment, Note 9 — Jointly Owned Electric Utility Plant and Note 24 — Supplemental Financial Information for additional information regarding property, plant and equipment.
Nuclear Fuel (Exelon and Generation)
The cost of nuclear fuel is capitalized within Property, plant and equipment and charged to fuel expense using the unit-of-production method. Prior to May 16, 2014, the estimated disposal cost of SNF was established per the Standard Waste Contract with the DOE and was expensed through fuel expense at one mill ($0.001) per kWh of net nuclear generation. Effective May 16, 2014, the SNF disposal fee was set to zero by the DOE and Exelon and Generation are not accruing any further costs related to SNF disposal fees until a new fee structure goes into effect. Certain on-site SNF storage costs are being reimbursed by the DOE since a DOE (or government-owned) long-term storage facility has not been completed. See Note 23 — Commitments and Contingencies for additional information regarding the SNF disposal fee.
Nuclear Outage Costs (Exelon and Generation)
Costs associated with nuclear outages, including planned major maintenance activities, are expensed to Operating and maintenance expense or capitalized to Property, plant and equipment (based on the nature of the activities) in the period incurred.
New Site Development Costs (Exelon and Generation)
New site development costs represent the costs incurred in the assessment and design of new power generating facilities. Such costs are capitalized when management considers project completion to be probable, primarily based on management’s determination that the project is economically and operationally feasible, management and/or the Exelon Board of Directors has approved the project and has committed to a plan to develop it, and Exelon and Generation have received the required regulatory approvals or management believes the receipt of required regulatory approvals is probable. As of December 31, 2017 and 2016, Generation has capitalized $228 million and $1.7 billion, respectively, to Property, plant and equipment, net on its Consolidated Balance Sheets. Capitalized development costs are charged to Operating and maintenance expense when project completion is no longer probable. New site development costs incurred prior to a project’s completion being deemed probable are expensed as incurred. Approximately $4 million, $30 million and $22 million of costs were expensed by Exelon and Generation for the years ended December 31, 2017, 2016 and 2015, respectively. These costs are primarily related to the possible development of new power generating facilities with the exception of

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

approximately $13 million of costs expensed in 2016 which relate to projects for which completion is no longer probable.
Capitalized Software Costs (All Registrants)
Coststesting incurred during the application development stage of software projects that are internally developed or purchased for operational use are capitalized within Property, plant, and equipment. Similar costs incurred for cloud-based solutions treated as service arrangements are capitalized within Other Current Assets and Deferred Debits and Other Assets. Such capitalized amounts are amortized ratably over the expected lives of the projects when they become operational, generally not to exceed five years. Certain other capitalized software costs are being amortized over longer lives based on the expected life or pursuant to prescribed regulatory requirements.
AFUDC. AFUDC is the cost, during the period of construction, of debt and equity funds used to finance construction projects for regulated operations. AFUDC is recorded to construction work in progress and as a non-cash credit to an allowance that is included in interest expense for debt-related funds and other income and deductions for equity-related funds. The following table presents net unamortized capitalized software costsrates used for capitalizing AFUDC are computed under a method prescribed by regulatory authorities.
See Note 7 — Property, Plant, and amortization of capitalized software costs by year:
Net unamortized software costs          Successor      
Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
December 31, 2017$834
 $173
 $227
 $111
 $179
 $133
 $2
 $1
 $1
December 31, 2016808
 173
 213
 91
 164
 153
 1
 1
 1
Amortization of capitalized software costsExelon Generation ComEd PECO BGE  Pepco DPL ACE
2017$270
 $73
 $73
 $39
 $46
 $
 $
 $
2016255
 72
 62
 33
 44
 
 
 
2015208
 73
 47
 33
 46
 (2) 
 
 Successor  Predecessor
PHIFor the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
Amortization of capitalized software costs$34
 $29
  $8
 $36
Equipment, Note 8 — Jointly Owned Electric Utility Plant and Note 22 — Supplemental Financial Information for additional information.
Depreciation and Amortization (All Registrants)
Except for the amortization of nuclear fuel, depreciationDepreciation is generally recorded over the estimated service lives of property, plant, and equipment on a straight-line basis using the group composite or unitarycomposite methods of depreciation. The group approach is typically for groups of similar assets that have approximately the same useful lives and the composite approach is used for dissimilar assets that have different lives. Under both methods, a reporting entity depreciates the assets over the average life of the assets in the group. The Utility Registrants'ComEd, BGE, Pepco, DPL, and ACE's depreciation expense includes the estimated cost of dismantling and removing plant from service upon retirement, which is consistent with each utility's regulatory recovery method. PECO's removal costs are capitalized to accumulated depreciation when incurred and recorded to depreciation expense over the life of the new asset constructed consistent with PECO's regulatory recovery method. The estimated service lives for the Utility Registrants are primarily based on each company's most recent depreciation studies of historical asset retirement and removal cost experience. At Generation, along with depreciation study results, management considers expected future energy market conditions and generation plant operating costs and capital investment requirements in determining the estimated service lives of its generating facilities. For its nuclear generating facilities, except for Oyster Creek, Clinton and TMI, Generation estimates each unit will operate through the full term of its initial 20-year operating license renewal period. See Note 8 — Early Nuclear Plant Retirements for additional information on the impacts of expected and potential early plant retirements. The estimated service lives of Generation's hydroelectric generating facilities are based on the remaining useful livesa combination of the stations, which assume a license renewal extension of 40 years.
depreciation studies and historical retirements. See Note 67 — Property, Plant, and Equipment for furtheradditional information regarding depreciation.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Amortization of regulatory assets and liabilities are recorded over the recovery or refund period specified in the related legislation or regulatory order or agreement. When the recovery or refund period is less than one year, amortization is recorded to the line item in which the deferred cost or income would have originally been recorded in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. Amortization of ComEd’s electric distribution and energy efficiency formula rate regulatory assets and ComEd’s, PECO's, BGE’s, Pepco's, DPL's and ACE'sthe Utility Registrants' transmission formula rate regulatory assets is recorded to Operating revenues.
Amortization of income tax related regulatory assets and liabilities areis generally recorded to Income tax expense. With the exception ofExcept for the regulatory assets and liabilities discussed above, when the recovery period is more than one year, the amortization is generally recorded to
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(Dollars in millions, except per share data unless otherwise noted)

Note 1 — Significant Accounting Policies
Depreciation and amortization in the Registrants’ Consolidated Statements of Operations and Comprehensive Income.Income when the recovery period is more than one year.
See Note 3 — Regulatory Matters and Note 2422 — Supplemental Financial Information for additional information regarding Generation’s nuclear fuel, Generation’s ARC and the amortization of the Utility Registrants' regulatory assets.
Asset Retirement Obligations (All Registrants)
The authoritative guidance for accounting for AROs requires the recognition ofRegistrants estimate and recognize a liability for atheir legal obligation to perform an asset retirement activityactivities even though the timing and/or methodmethods of settlement may be conditional on a future event. To estimate its decommissioning obligation related to its nuclear generating stations, Generation uses a probability-weighted, discounted cash flow model which,events. The Registrants update their AROs either annually or on a unit-by-unit basis, considers multiple outcome scenarios that include significant estimates and assumptions, and are based on decommissioning cost studies, cost escalation rates, probabilistic future cash flow models and discount rates. Generation generally updates its ARO annually, unless circumstances warrant more frequent updates, based on its review of updated cost studies and its annual evaluation of cost escalation factors and probabilities assigned to various decommissioning scenarios. Decommissioning cost studies are updated, on a rotational basis, for each of Generation’s nuclear units at least every five years unless circumstances warrant more frequent updates (such as a change in assumed operating life for a nuclear plant). As part of the annual cost study update process, Generation evaluates newly assumed costs or substantive changes in previously assumed costs to determine if the cost estimate impacts are sufficiently material to warrant application of the updated estimates to the AROs across the nuclear fleet outside of the normal five-year rotating cost study update cycle. The liabilities associated with Exelon’s non-nuclear AROs are adjusted on an ongoing rotational basis at least once every fivethree years, based on a risk profile, unless circumstances warrant more frequent updates. Changes to the recorded value of an ARO result from the passage ofThe updates factor in new lawscost estimates, credit-adjusted, risk-free rates (CARFR) and regulations, revisions to eitherescalation rates, and the timing or amount of estimated undiscounted cash flows, and estimates of cost escalation factors.flows. AROs are accreted throughout each year to reflect the time value of money for these present value obligations through a charge to Operating and maintenance expense in the Consolidated Statements of Operations and Comprehensive Income or, in the case of the Utility Registrants' accretion, through an increase to regulatory assets. See Note 159 — Asset Retirement Obligations for additional information.
Capitalized Interest and AFUDC (All Registrants)
During construction, Exelon and Generation capitalize the costs of debt funds used to finance non-regulated construction projects. Capitalization of debt funds is recorded as a charge to construction work in progress and as a non-cash credit to interest expense.
Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE apply the authoritative guidance for accounting for certain types of regulation to calculate AFUDC, which is the cost, during the period of construction, of debt and equity funds used to finance construction projects for regulated operations. AFUDC is recorded to construction work in progress and as a non-cash credit to AFUDC that is included

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

in interest expense for debt-related funds and other income and deductions for equity-related funds. The rates used for capitalizing AFUDC are computed under a method prescribed by regulatory authorities.
The following table summarizes total incurred interest, capitalized interest and credits to AFUDC by year:
  Exelon Generation ComEd PECO BGE Pepco DPL ACE
2017
Total incurred interest(a)
$1,658
 $502
 $369
 $130
 $111
 $133
 $54
 $64
 Capitalized interest63
 63
 
 
 
 
 
 
 Credits to AFUDC debt and equity108
 
 20
 12
 22
 34
 10
 9
2016
Total incurred interest(a)
$1,678
 $472
 $469
 $127
 $114
 $137
 $52
 $65
 Capitalized interest108
 107
 
 
 
 
 
 
 Credits to AFUDC debt and equity98
 
 22
 11
 30
 29
 7
 9
2015
Total incurred interest(a)
$1,170
 $445
 $336
 $116
 $113
 $131
 $51
 $65
 Capitalized interest79
 79
 
 
 
 
 
 
 Credits to AFUDC debt and equity44
 
 9
 7
 28
 19
 2
 2
 Successor  Predecessor
PHIFor the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
Total incurred interest(a)
$263
 $207
  $68
 $289
Credits to AFUDC debt and equity54
 35
  10
 23
__________
(a)Includes interest expense to affiliates.
Guarantees (All Registrants)
TheIf necessary, the Registrants recognize a liability at the inceptiontime of issuance of a guarantee a liability for the fair market value of the obligations they have undertaken by issuing the guarantee, including the ongoing obligation to perform over the term of the guarantee in the event that the specified triggering events or conditions occur.
guarantee. The liability that is initially recognized at the inception of the guarantee is reduced or eliminated as the Registrants are released from risk under the guarantee. Depending on the nature of the guarantee, the release from risk of the Registrant may be recognized only upon the expiration or settlement of the guarantee or by a systematic and rational amortization method over the term of the guarantee. See Note 2318 — Commitments and Contingencies for additional information.
Asset Impairments
Long-Lived Assets (All Registrants)
Long-Lived Assets
. The Registrants evaluate the carrying value of their long-lived assets for recoverability whenever events or asset groups, excluding goodwill, whenchanges in circumstances indicate that the carrying value of those assets may not be recoverable. Indicators of impairment may include a deteriorating business climate, including, but not limited to, declines in energy prices, condition of the asset, specific regulatory disallowance, abandonment, or plans to dispose of a long-lived asset significantly before the end of its useful life. The Registrants determine if long-lived

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

assets and asset groups are impaired by comparingWhen the estimated undiscounted expected future cash flows attributable to the carrying value. When the undiscounted cash flow analysis indicates a long-lived asset or asset group ismay not be recoverable, the amount of the impairment loss is determined by measuring the excess of the carrying amount of the long-lived asset or asset group over its fair value.
Cash flows for long-lived assetsGoodwill (Exelon, ComEd, and asset groups are determined at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. The cash flows from the generating units are generally evaluated at a regional portfolio level along with cash flows generated from the customer supply and risk management activities, including cash flows from related intangible assets and liabilities on the balance sheet. In certain cases, generating assets may be evaluated on an individual basis where those assets are contracted on a long-term basis with a third party and operations are independent of other generation assets (typically contracted renewables)PHI). See Note 7 — Impairment of Long-Lived Assets and Intangibles for additional information.
Goodwill
Goodwill represents the excess of the purchase price paid over the estimated fair value of the net assets acquired and liabilities assumed in the acquisition of a business. Goodwill is not amortized but is testedassessed for impairment at least annually or inon an interim basis if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying value. See Note 1012 — Intangible Assets for additional information regarding Exelon’s, Generation's, ComEd’s, PHI's and DPL's goodwill.
Equity Method Investments
Exelon and Generation regularly monitor and evaluate equity method investments to determine whether they are impaired. An impairment is recorded when the investment has experienced a decline in value that is other-than-temporary in nature. Additionally, if the entity in which Generation holds an investment recognizes an impairment loss, Exelon and Generation would record their proportionate share of that impairment loss and evaluate the investment for an other-than-temporary decline in value.
Debt and Equity Security Investments
Declines in the fair value of Exelon's debt and equity investments below the cost basis are reviewed to determine if such decline is other-than-temporary. For available-for-sale securities and cost investments, if the decline is determined to be other-than-temporary, the cost basis is written down to fair value as a new cost basis. For equity securities and cost investments, the amount of the impairment loss is included in earnings. For debt securities, the amount of the impairment loss is included in earnings or separated between earnings and OCI depending on whether Exelon intends to sell the debt securities before recovery of its cost basis. Beginning January 1, 2018, the authoritative guidance eliminates the available-for-sale and cost method classifications for equity securities and requires that all equity investments (other than those accounted for using the equity method of accounting) be measured and recorded at fair value with any changes in fair value recorded through earnings. Investments in equity securities without readily determinable fair values must be qualitatively assessed for impairment each reporting period and fair value determined if any significant impairment indicators exist. If fair value is less than carrying value, the impairment is recorded through earnings immediately in the period in which it is identified without regard to whether the decline in value is temporary in nature. The new authoritative guidance does not impact the classification or measurement of investments in debt securities.information.
Derivative Financial Instruments (All Registrants)
All derivativesDerivatives are recognized on the balance sheet at their fair value unless they qualify for certain exceptions, including the normal purchases and normal sales exception. Additionally,NPNS. For derivatives that qualify and are designated for hedge accounting are classified as either hedges of the fair value of a

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

recognized asset or liability or of an unrecognized firm commitment (fair value hedge) or hedges of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge). For fair value hedges, changes in fair values for both the derivative and the underlying hedged exposurevalue each period are recognized in earnings each period. For cash flow hedges, the portion of the derivative gain or loss that is effective in offsetting the change in the cost or value of the underlying exposure is deferredinitially recorded in AOCI and later reclassified intorecognized in earnings when the underlying hedged transaction occurs. Gains and losses from the ineffective portion of any hedge areaffects earnings. Amounts recognized in earnings immediately. are recorded in Interest expense, net on the Consolidated Statement of Operations and Comprehensive Income based on the activity the transaction is economically hedging.Cash inflows and outflows related to derivative instruments designated as cash flow hedges are included as a component of operating, investing, or financing cash flows in the Consolidated Statements of Cash Flows, depending on the nature of each transaction.
For derivative contractsderivatives intended to serve as economic hedges, and thatwhich are not designated or do not qualify for hedge accounting, or the normal purchases and normal sales exception, changes in the fair value of the derivativeseach period are recognized in earnings each period, except for the Utility Registrants where changes in fair value may be recordedor as a regulatory asset or liability if there is an ability to recover or return the associated costs. See Note 3 — Regulatory Matters and Note 12 — Derivative Financial Instruments for additional information.each period. Amounts classifiedrecognized in earnings are includedrecorded in revenue, purchasedElectric operating revenues, Purchased power and fuel, interestor Interest expense or other, net onin the Consolidated Statements of Operations and Comprehensive Income based on the activity the transaction is economically hedging. For energy-related derivatives entered into for proprietary trading purposes, which are subject to Exelon’s Risk Management Policy, changesChanges in the fair value ofare also recorded as a regulatory asset or liability when there is an ability to recover or return the derivatives are recognizedassociated costs or benefits in earnings each period. All amounts classified in earnings related to proprietary trading are included in revenue on the Consolidated Statements of Operations and Comprehensive Income.accordance with regulatory requirements. Cash inflows and outflows related to derivative instruments are included as a component of operating, investing, or financing cash flows in the Consolidated Statements of Cash Flows, depending on the
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 1 — Significant Accounting Policies
nature of each transaction.
As part of Generation’s energy marketing business, Generation enters into contracts to buy and sell energy to meet the requirements of its customers. These contracts include short-term and long-term commitments to purchase and sell energy and energy-related products in the energy markets with the intent and ability to deliver or take delivery of the underlying physical commodity. Normal purchases and normal sales are contracts where physical delivery is probable, quantities are expected to be used or sold in the normal course of business over a reasonable period of time and will not be financially settled. Revenues and expenses on derivative contracts that qualify, and are designated, as normal purchases and normal sales are recognized when the underlying physical transaction is completed. While these contracts are considered derivative financial instruments, they are not required to be recorded at fair value, but rather are recorded on an accrual basis of accounting.hedged item. See Note 123 — Regulatory Matters and Note 15 — Derivative Financial Instruments for additional information.
Retirement Benefits (All Registrants)
Exelon sponsors defined benefit pension plans and other postretirement benefitOPEB plans for essentiallysubstantially all current employees.
The measurement of the plan obligations and costs of providing benefits under these plans involveare measured as of December 31. The measurement involves various factors, including numerous assumptions, and inputs and accounting elections. The assumptions are reviewed annually and at any interim remeasurement of the plan obligations. The impact of assumption changes or experience different from that assumed on pension and other postretirement benefitOPEB obligations is recognized over time rather than immediately recognized in the Consolidated Statements of Operations and Comprehensive Income. Gains or losses in excess of the greater of ten percent of the projected benefit obligation or the MRV of plan assets are amortized over the expected average remaining service period of plan participants. See Note 1614 — Retirement Benefits for additional information.
Equity Investment Earnings (Losses)
2. Discontinued Operations (Exelon)
On February 21, 2021, Exelon's Board of Unconsolidated Affiliates (ExelonDirectors approved a plan to separate the Utility Registrants and Generation)
Generation, creating two publicly traded companies ("the separation"). Exelon completed the separation on February 1, 2022, through the distribution of 326,663,937 common stock shares of Constellation, the new publicly traded company, to Exelon shareholders. Under the separation plan, Exelon shareholders retained their current shares of Exelon stock and received one share of Constellation common stock for every three shares of Exelon common stock held on January 20, 2022, the record date for the distribution, in a transaction that was tax-free to Exelon and its shareholders for U.S. federal income tax purposes.
Constellation was newly formed and incorporated in Pennsylvania on June 15, 2021 for the purposes of separation and holds Generation (including Generation's subsidiaries).
Pursuant to the separation:
Exelon entered into four term loans consisting of a 364-day term loan for $1.15 billion and three 18-month term loans for $300 million, $300 million and $250 million, respectively. Exelon issued these term loans primarily to fund the cash payment to Constellation and for general corporate purposes. See Note 16 — Debt and Credit Agreements for additional information.
Exelon made a cash payment of $1.75 billion to Constellation on January 31, 2022.
Exelon contributed its equity ownership interest in Generation to Constellation. Exelon no longer retains any equity ownership interest in Generation or Constellation.
Exelon transferred certain corporate assets and employee-related obligations to Constellation.
Exelon received cash from Generation of $258 million to settle the intercompany loan on January 31, 2022. See Note 16 — Debt and Credit Agreements for additional information.
Continuing Involvement
In order to govern the ongoing relationships between Exelon and Constellation after the separation, and to facilitate an orderly transition, Exelon and Constellation have entered into several agreements, including the following:
Separation Agreement – governs the rights and obligations between Exelon and Constellation regarding certain actions to be taken in connection with the separation, among others, including the allocation of assets and liabilities between Exelon and Constellation.
Transition Services Agreement (TSA) – governs the terms and conditions of the services that Exelon will provide to Constellation and Constellation will provide to Exelon for an expected period of two years, provided that certain services may be longer than the term and services may be extended with approval from both parties. The services include equity in earningsspecified accounting, finance, information technology, human resources, employee benefits, and other services that have historically been provided on a centralized basis by BSC. For the period from equity method investments in qualifying facilities and power projects in Equity in earnings (losses)February 1, 2022 to December 31, 2022, the amounts Exelon billed
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Table of unconsolidated affiliates within their Consolidated Statements of Operations and Comprehensive Income.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 2 — Discontinued Operations
New Accounting Standards (All Registrants)Constellation and Constellation billed Exelon for these services were $266 million recorded in Other income, net and $43 million recorded in Operating and maintenance expense, respectively.
New Accounting Standards IssuedTax Matters Agreement (TMA) – governs the respective rights, responsibilities and Adoptedobligations of Exelon and Constellation with respect to all tax matters, including tax liabilities and benefits, tax attributes, tax returns, tax contests and other tax sharing regarding U.S. federal, state, local and foreign income taxes, other tax matters and related tax returns. See Note 13 — Income Taxes for additional Information.
In addition, the Utility Registrants will continue to incur expenses from transactions with Constellation after the separation. Prior to the separation, such expenses were primarily recorded as Purchased power from affiliates and an immaterial amount recorded as Operating and maintenance expense from affiliates at the Utility Registrants. After the separation, such expenses are primarily recorded as Purchased power and an immaterial amount recorded as Operating and maintenance expense at the Utility Registrants.
ComEd had an ICC-approved RFP contract with Constellation to provide a portion of January 1, 2018:ComEd’s electric supply requirements. ComEd also purchased RECs and ZECs from Constellation.
PECO received electric supply from Constellation under contracts executed through PECO’s competitive procurement process. In addition, PECO had a ten-year agreement with Constellation to sell solar AECs.
BGE received a portion of its energy requirements from Constellation under its MDPSC-approved market-based SOS and gas commodity programs.
Pepco received electric supply from Constellation under contracts executed through Pepco’s competitive procurement process approved by the MDPSC and DCPSC.
DPL received a portion of its energy requirements from Constellation under its MDPSC and DEPSC approved market-based SOS commodity programs.
ACE received electric supply from Constellation under contracts executed through ACE’s competitive procurement process approved by the NJBPU.
ComEd and PECO also have receivables with Constellation for estimated excess funds at the end of decommissioning the Regulatory Agreement Units, such amounts are due back to ComEd and PECO, as applicable, for payment to their respective customers. See Note 3 — Regulatory Matters and Note 23 — Related Party Transactions for additional information.
Discontinued Operations
The separation represented a strategic shift that would have a major effect on Exelon’s operations and financial results. Accordingly, the separation meets the criteria for discontinued operations.
The following new authoritative accounting guidance issued bytable presents the FASB hasresults of Constellation that have been adopted as of January 1, 2018reclassified from continuing operations and will be reflected by the Registrantsincluded in their consolidated financial statements beginning in the first quarter of 2018. Unless otherwise indicated, adoption of the new guidance in each instance will have no or insignificant impacts on the Registrants’discontinued operations within Exelon’s Consolidated Statements of Operations and Comprehensive Income for the years ended December 31, 2022, 2021, and 2020.
These results are primarily Generation, which is comprised of Exelon’s Mid-Atlantic, Midwest, New York, ERCOT, and Other Power Regions reportable segments, and include the impact of transaction costs, certain BSC costs, including any transition costs, that were historically allocated and directly attributable to Generation, transactions between Generation and the Utility Registrants, and tax-related adjustments. Transaction costs include costs for external bankers, accountants, appraisers, lawyers, external counsels and other advisors, among others, who were involved in the negotiation, appraisal, due diligence and regulatory approval of the separation. Transition costs are primarily employee-related costs such as recruitment expenses, costs to establish certain stand-alone functions and information technology systems, professional services fees, and other separation-related costs during the transition to separate Generation. For the purposes of reporting discontinued operations, these results also include transactions between Generation and the Utility Registrants that were historically eliminated within Exelon’s Consolidated Statements of Cash Flows, Consolidated Balance Sheets and disclosures.
Revenue from Contracts with Customers (Issued May 2014 and subsequently amended to address implementation questions; Adopted January 1, 2018): Changes the criteria for recognizing revenue from a contract with a customer. The new revenue recognition guidance, including subsequent amendments, is effective for annual reporting periods beginning on or after December 15, 2017, with the option to early adopt the standard for annual periods beginning on or after December 15, 2016. The Registrants did not early adopt this standard.
The new standard replaces existing guidance on revenue recognition, including most industry specific guidance, with a five-step model for recognizing and measuring revenue from contracts with customers. The objective of the new standard is to provide a single, comprehensive revenue recognition model for all contracts with customers to improve comparability within industries, across industries, and across capital markets. The underlying principle is that an entity will recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. The guidance also requires a number of disclosures regarding the nature, amount, timing, and uncertainty of revenue and the related cash flows. The guidance can be applied retrospectively to each prior reporting period presented (full retrospective method) or retrospectively with a cumulative effect adjustment to retained earnings for initial application of the guidance at the date of initial adoption (modified retrospective method).  The Registrants will apply the new guidance using the full retrospective method, which will not have a material impact on previously issued financial statements.
In coordination with the AICPA Power and Utilities Industry Task Force, the Registrants reached conclusions on the following key accounting issues:
The Utility Registrants’ tariff sale contracts, including those with lower credit quality customers, are generally deemed to be probable of collection under the guidance and, thus, the timing of revenue recognition will continue to be concurrent with the delivery of electricity or natural gas, consistent with current practice;
Consistent with current industry practice, revenues recognized from sales of bundled energy commodities (i.e., contracts involving the delivery of multiple energy commodities suchOperations, as electricity, capacity, ancillary services, etc.) are generally expected to be recognized upon delivery to the customer in an amount based on the invoice price given that it corresponds directly with the value of the commodities transferred to the customer; and
Contributions in aid of construction are outside of the scope of the standard and, therefore, will continue to be accounted for as a reduction to Property, Plant, and Equipment.
In assessing the impacts of the new revenue guidance, the Registrants identified the following items thatthese transactions will be accounted for differently:ongoing after the separation. Certain BSC costs that were historically allocated to Generation are presented as part of continuing operations in
Costs to acquire certain contracts (e.g., sales commissions associated with retail power contracts) will be deferred and amortized ratably over the term
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Table of the contract rather than being expensed as incurred; and

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 2 — Discontinued Operations
Variable consideration within certain contracts (e.g., performance bonuses) will be estimated and recognized as revenue over the term of the contract rather than being recognized when realized.
Based on an assessment of existing contracts and revenue streams, the new guidance, including the identified changes above, will not have a material impact on the amount and timing of the Registrants’ revenue recognition. 
One of the new disclosure requirements is to present disaggregated revenue into categories that show how economic factors affect the nature, amount, timing, and uncertainty of revenue and cash flows. In order to comply with this new disclosure requirement, Generation will disclose disaggregated revenue by operating segment and provide further differentiation by major products (i.e., electric power and gas) and the Utility Registrants will disclose disaggregated revenue by major customer class (i.e., residential and commercial and industrial) separately for electric and gas in the Combined Notes to Consolidated Financial Statements. In addition, pursuant to the requirements of the new standard, Exelon and the Utility Registrants will present alternative revenue program revenue separately from revenue from contracts with customers on the face of theirExelon’s Consolidated Statements of Operations and Comprehensive Income.
Recognition and Measurement of Financial Assets and Financial Liabilities (Issued January 2016; Adopted January 1, 2018): Eliminates the available-for-sale and cost method classification for equity securities and requires that all equity investments (other than those accounted for using the equity method of accounting) be measured and recorded at fair value with any changes in fair value recorded through earnings and, for equity investments without a readily determinable fair value, provides a measurement alternative of cost less impairment plus or minus adjustments for observable price changes in identical or similar assets. In addition, equity investments without readily determinable fair values must be qualitatively assessed for impairment each reporting period and fair value determined if any significant impairment indicators exist. If fair value is less than carrying value, the impairment is recorded through net income immediately in the period in which it is identified. The guidance doesas these costs do not impact the classification or measurement of investments in debt securities. The guidance also amends several disclosure requirements, including requiring i) financial assets and financial liabilities to be presented separately in the balance sheet or note, grouped by measurement category and form, ii) disclosurequalify as expenses of the methodsdiscontinued operations per the accounting rules.
For the Years Ended December 31,
202220212020
Operating revenues
Competitive business revenues$1,855 $18,466 $16,399 
Competitive business revenues from affiliates161 1,189 1,206 
Total operating revenues2,016 19,655 17,605 
Operating expenses
Competitive businesses purchased power and fuel1,138 12,163 9,585 
Operating and maintenance(a)
371 4,174 4,794 
Depreciation and amortization94 3,003 2,123 
Taxes other than income taxes44 475 482 
Total operating expenses1,647 19,815 16,984 
Gain on sales of assets and businesses10 201 11 
Operating income379 41 632 
Other income and (deductions)
Interest expense, net(20)(282)(328)
Other, net(281)795 937 
Total other (deductions) and income(301)513 609 
Income before income taxes78 554 1,241 
Income taxes(40)332 380 
Equity in losses of unconsolidated affiliates(1)(9)(6)
Net income117 213 855 
Net income (loss) attributable to noncontrolling interests123 (9)
Net income from discontinued operations$116 $90 $864 
__________
(a)Includes transaction and significant assumptions usedtransition costs related to estimate fair value or a descriptionthe separation of $52 million and $43 million for the changesyears ended December 31, 2022 and 2021, respectively. There were no separation related costs incurred in the methods and assumptions used to estimate fair value, and iii)2020. See discussion above for financialadditional information.
There were no assets and liabilities measured at amortized cost, disclosure of the fair value of the amount that would be received to sell the asset or paid to transfer the liability. The guidance is effective January 1, 2018 and must be applied using a modified retrospective transition approach with a cumulative effect adjustment to retained earnings for initial application of the guidance at the date of adoption. The Registrants recorded an insignificant adjustment to opening retained earningsdiscontinued operations included in Exelon's Consolidated Balance Sheet as of JanuaryDecember 31, 2022. Constellation had net assets of $11,573 million that separated on February 1, 2018 related2022 that resulted in a reduction to unrealized gains/losses on available for saleExelon's equity securities.
during the year ended December 31, 2022. Refer to the Distribution of Constellation line in Exelon's Consolidated Statement of Cash Flows: ClassificationChanges in Shareholders' Equity for further information.
The following table presents the assets and liabilities of Certain Cash Receipts and Cash Payments (Issued August 2016; Adopted January 1, 2018) and Restricted Cash (Issued November 2016; Adopted January 1, 2018):In 2016, the FASB issued two standards impacting the Statementdiscontinued operations in Exelon’s Consolidated Balance Sheets as of Cash Flows. The first adds or clarifies guidance on the classificationDecember 31, 2021.
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Table of certain cash receipts and payments on the statement of cash flows as follows: debt prepayment or extinguishment costs, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of corporate-owned life insurance policies and bank-owned life insurance policies, distributions received from equity method investees, beneficial interest in securitization transactions, and the application of the predominance principle to separately identifiable cash flows. The second states that amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows (instead of being presented as

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 2 — Discontinued Operations
cash flow activities). The new standards are effective on January 1, 2018 and must be applied on a full retrospective basis. Adoption
December 31, 2021
ASSETS
Current assets
Cash and cash equivalents$510 
Restricted cash and cash equivalents72 
Accounts receivable
Customer accounts receivable1,724
Customer allowance for credit losses(55)
Customer accounts receivable, net1,669 
Other accounts receivable596
Other allowance for credit losses(4)
Other accounts receivable, net592 
Mark-to-market derivative assets2,169 
Inventories, net
Fossil fuel and emission allowances284 
Materials and supplies1,004 
Renewable energy credits529 
Assets held for sale13 
Other993 
Total current assets of discontinued operations7,835 
Property, plant, and equipment (net of accumulated depreciation and amortization of $15,888)19,661 
Deferred debits and other assets
Nuclear decommissioning trust funds15,938 
Investments193 
Mark-to-market derivative assets949 
Other1,768 
Total property, plant, and equipment, deferred debits, and other assets of discontinued operations38,509 
Total assets of discontinued operations$46,344 

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Table of the second standard will result in a change in presentation of restricted cash on the face of the Statement of Cash Flows; otherwise this guidance will not have a significant impact on the Registrants’ Consolidated Statements of Cash Flows and disclosures.
Intra-Entity Transfers of Assets Other Than Inventory (Issued October 2016; Adopted January 1, 2018):Requires entities to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs (current GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party). The standard is effective January 1, 2018 with early adoption permitted. The guidance requires a modified retrospective transition approach through a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption.
Clarifying the Definition of a Business (Issued January 2017; Adopted January 1, 2018):Clarifies the definition of a business with the objective of addressing whether acquisitions (or dispositions) should be accounted for as acquisitions/dispositions of assets or as acquisitions/dispositions of businesses. If substantially all the fair value of the assets acquired/disposed of is concentrated in a single identifiable asset or a group of similar identifiable assets, the set of transferred assets and activities is not a business. If the fair value of the assets acquired/disposed of is not concentrated in a single identifiable asset or a group of similar identifiable assets, then an entity must evaluate whether an input and a substantive process exist, which together significantly contribute to the ability to produce outputs. The standard also revises the definition of outputs to focus on goods and services to customers. The standard will likely result in more acquisitions being accounted for as asset acquisitions. The standard is effective January 1, 2018, with early adoption permitted, and must be applied on a prospective basis. The Registrants did not early adopt the guidance.
Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (Issued March 2017; Adopted January 1, 2018):Changes the accounting and presentation of pension and OPEB costs at the plan sponsor (i.e., Exelon) level. The guidance requires plan sponsors to report the service cost and other non-service cost components of net periodic pension cost and net periodic OPEB cost (together, net benefit cost) separately. Under the new guidance, service cost is presented as part of income from operations and the other non-service cost components are classified outside of income from operations on the Consolidated Statements of Operations and Comprehensive Income. Additionally, service cost is the only component eligible for capitalization. Under prior GAAP, the total amount of net benefit cost was recorded as part of income from operations and all components were eligible for capitalization.
Generation, ComEd, PECO, BGE, BSC, PHI, Pepco, DPL, ACE and PHISCO participate in Exelon’s single employer pension and OPEB plans and apply multi-employer accounting. Multi-employer accounting is not impacted by this standard; therefore, Exelon's subsidiary financial statements will not change upon its adoption. On Exelon’s consolidated financial statements, non-service cost components of pension and OPEB cost capitalizable under a regulatory framework are prospectively reported as regulatory assets (currently, they are capitalizable under pension and OPEB accounting guidance and reported as PP&E). These regulatory assets are amortized outside of operating income.
The presentation of the service cost component and the other non-service cost components of net benefit cost will be applied retrospectively in the Exelon consolidated financial statements beginning in the first quarter of 2018. On Exelon's consolidated financial statements, service cost will continue to be reported in Operating and maintenance and Non-service cost will be reported outside of operating income. The prospective change in the capitalization eligibility is not expected to have a significant impact on Exelon’s consolidated net income.
New Accounting Standards Issued and Not Yet Adopted as of December 31, 2017: The following new authoritative accounting guidance issued by the FASB has not yet been adopted and

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 2 — Discontinued Operations
reflected by
December 31, 2021
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities
Short-term borrowings$2,082 
Long-term debt due within one year1,220 
Accounts payable1,757 
Accrued expenses818 
Mark-to-market derivative liabilities981 
Renewable energy credit obligation779 
Liabilities held for sale
Other300 
Total current liabilities of discontinued operations7,940 
Long-term debt4,575 
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits3,583 
Asset retirement obligations12,819 
Pension obligations939 
Non-pension postretirement benefit obligations876 
Spent nuclear fuel obligation1,210 
Mark-to-market derivative liabilities513 
Other1,161 
Total long-term debt, deferred credits, and other liabilities of discontinued operations25,676 
Total liabilities of discontinued operations$33,616 
The following table presents selected financial information regarding cash flows of the Registrants in their consolidated financial statements as of December 31, 2017. Unless otherwise indicated, the Registrantsdiscontinued operations that are currently assessing the impacts such guidance may have (which could be material) on their Consolidated Balance Sheets, Consolidated Statements of Operations and Comprehensive Income,included within Exelon’s Consolidated Statements of Cash Flows for the years ended December 31, 2022, 2021, and disclosures, as well as the potential to early adopt where applicable. The Registrants have assessed other FASB issuances2020.
For the Years Ended December 31,
202220212020
Non-cash items included in net income from discontinued operations:
Depreciation, amortization, and accretion, including nuclear fuel and energy contract amortization$207 $4,540 $3,636 
Asset impairments— 545 563 
Loss (gain) on sales of assets and businesses(201)(11)
Deferred income taxes and amortization of investment tax credits(143)(224)94 
Net fair value changes related to derivatives(59)(568)(270)
Net realized and unrealized losses (gains) on NDT fund investments205 (586)(461)
Net unrealized losses (gains) on equity investments16 160 (186)
Other decommissioning-related activity36 (946)(659)
Cash flows from investing activities:
Capital expenditures(227)(1,341)(1,759)
Collection of DPP169 3,902 3,771 
Supplemental cash flow information:
(Decrease) increase in capital expenditures not paid(128)96 (88)
Increase in DPP348 3,652 4,441 
Increase in PP&E related to ARO update335 618 850 
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Table of new standards which are not listed below given the current expectation such standards will not significantly impact the Registrants' financial reporting.
Leases (Issued February 2016):Increases transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The standard is effective January 1, 2019. Early adoption is permitted, however the Registrants will not early adopt the standard. The issued guidance required a modified retrospective transition approach, which requires lessees and lessors to recognize and measure leases at the beginning of the earliest period presented (January 1, 2017). In January 2018, the FASB proposed amending the standard to give entities another option for transition. The proposed transition method would allow entities to initially apply the requirements of the standard in the period of adoption (January 1, 2019). The Registrants will assess this transition option when the FASB issues the standard.
The new guidance requires lessees to recognize both the right-of-use assets and lease liabilities in the balance sheet for most leases, whereas today only finance lease liabilities (referred to as capital leases) are recognized in the balance sheet. In addition, the definition of a lease has been revised when an arrangement conveys the right to control the use of the identified asset which may change the classification of an arrangement as a lease. Quantitative and qualitative disclosures related to the amount, timing and judgments of an entity’s accounting for leases and the related cash flows are also expanded. Disclosure requirements apply to both lessees and lessors, whereas current disclosures relate only to lessees. Significant changes to lease systems, processes and procedures are required to implement the requirements of the new standard. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from current GAAP. Lessor accounting is also largely unchanged.
The standard provides a number of transition practical expedients that entities may elect. These include a "package of three" expedients that must be taken together and allow entities to (1) not reassess whether existing contracts contain leases, (2) carryforward the existing lease classification, and (3) not reassess initial direct costs associated with existing leases. In January 2018, the FASB issued additional guidance which provides another optional transition practical expedient. This practical expedient allows entities to not evaluate land easements under the new guidance at adoption if they were not previously accounted for as leases.
The Registrants have assessed the lease standard and are executing a detailed implementation plan in preparation for adoption on January 1, 2019. Key activities in the implementation plan include:

Developing a complete lease inventory and abstracting the required data attributes into a lease accounting system that supports the Registrants' lease portfolios and integrates with existing systems.

Evaluating the transition practical expedients available under the guidance.

Identifying, assessing and documenting technical accounting issues, policy considerations and financial reporting implications. Includes completing a detailed contract assessment for a sample of transactions to determine whether they are leases under the new guidance.


Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Identifying and implementing changes to processes and controls to ensure all impacts of the new guidance are effectively addressed.
Accounting and implementation issues continue to be identified and evaluated by the implementation team.
Impairment of Financial Instruments (Issued June 2016):Provides for a new Current Expected Credit Loss (CECL) impairment model for specified financial instruments including loans, trade receivables, debt securities classified as held-to-maturity investments and net investments in leases recognized by a lessor. Under the new guidance, on initial recognition and at each reporting period, an entity is required to recognize an allowance that reflects the entity’s current estimate of credit losses expected to be incurred over the life of the financial instrument. The standard does not make changes to the existing impairment models for non-financial assets such as fixed assets, intangibles and goodwill. The standard will be effective January 1, 2020 (with early adoption as of January 1, 2019 permitted) and, for most debt instruments, requires a modified retrospective transition approach through a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption.
Goodwill Impairment (Issued January 2017):Simplifies the accounting for goodwill impairment by removing Step 2 of the current test, which requires calculation of a hypothetical purchase price allocation. Under the revised guidance, goodwill impairment will be measured as the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill (currently Step 1 of the two-step impairment test). Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. Exelon, Generation, ComEd, PHI, and DPL have goodwill as ofDecember 31, 2017. This updated guidance is not currently expected to impact the Registrants’ financial reporting. The standard is effective January 1, 2020, with early adoption permitted, and must be applied on a prospective basis.
Derivatives and Hedging (Issued September 2017):Allows more financial and nonfinancial hedging strategies to be eligible for hedge accounting. The amendments are intended to more closely align hedge accounting with companies’ risk management strategies, simplify the application of hedge accounting, and increase transparency as to the scope and results of hedging programs.  There are also amendments related to effectiveness testing and disclosure requirements.  The guidance is effective January 1, 2019 and early adoption is permitted with a modified retrospective transition approach. The Registrants are currently assessing this standard but do not currently expect a significant impact given the limited activity for which the Registrants elect hedge accounting and because the Registrants do not anticipate increasing their use of hedge accounting as a result of this standard.
2. Variable Interest Entities (All Registrants)
A VIE is a legal entity that possesses any of the following characteristics: an insufficient amount of equity at risk to finance its activities, equity owners who do not have the power to direct the significant activities of the entity (or have voting rights that are disproportionate to their ownership interest), or equity owners who do not have the obligation to absorb expected losses or the right to receive the expected residual returns of the entity. Companies are required to consolidate a VIE if they are its primary beneficiary, which is the enterprise that has the power to direct the activities that most significantly affect the entity’s economic performance.
At December 31, 2017, Exelon, Generation, PHI and ACE collectively consolidated five VIEs or VIE groups for which the applicable Registrant was the primary beneficiary. At December 31, 2016, Exelon, Generation, BGE, PHI and ACE collectively consolidated nine VIEs or VIE groups for which the applicable Registrant was the primary beneficiary (see Consolidated Variable Interest Entities below). As of December 31, 2017 and 2016, Exelon and Generation collectively had significant interests in seven and eight other VIEs, respectively, for which the applicable Registrant does not have the power to direct

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

the entities’ activities and, accordingly, was not the primary beneficiary (see Unconsolidated Variable Interest Entities below).
Consolidated Variable Interest Entities
The carrying amounts and classification of the consolidated VIEs’ assets and liabilities included in the Registrants' consolidated financial statements at December 31, 2017 and 2016 are as follows:
 December 31, 2017
     Successor  
 
Exelon(a)
 Generation 
PHI(a)
 ACE
Current assets$630
 $620
 $10
 6
Noncurrent assets9,317
 9,286
 31
 23
Total assets$9,947

$9,906

$41

$29
Current liabilities$306
 $270
 $36
 32
Noncurrent liabilities3,312
 3,246
 66
 58
Total liabilities$3,618

$3,516

$102

$90
 December 31, 2016
       Successor  
 
Exelon(a)(b)
 Generation BGE 
PHI(a)
 ACE
Current assets$954
 $916
 $23
 $14
 $9
Noncurrent assets8,563
 8,525
 3
 35
 23
Total assets$9,517
 $9,441
 $26
 $49
 $32
Current liabilities$885
 $802
 $42
 $42
 $37
Noncurrent liabilities2,713
 2,612
 
 101
 89
Total liabilities$3,598
 $3,414
 $42
 $143
 $126
__________
(a)Includes certain purchase accounting adjustments not pushed down to the ACE standalone entity.
(b)Includes certain purchase accounting adjustments not pushed down to the BGE standalone entity.
Except as specifically noted below, the assets in the table above are restricted for settlement of the VIE obligations and the liabilities in the table can only be settled using VIE resources.
As of December 31, 2017, Exelon's and Generation's consolidated VIEs consist of:
Investments in Other Energy Related Companies
During 2015, Generation sold 69% of its equity interest in a company to a tax equity investor. The company holds an equity method investment in a distributed energy company that is an unconsolidated VIE (see unconsolidated VIE section for additional details). Generation and the tax equity investor contributed a total of $227 million of equity in proportion to their ownership interests to the company. The company meets the definition of a VIE because it has a similar structure to a limited partnership and the limited partners do not have kick-out rights with respect to the general partner. Generation is the primary beneficiary because Generation manages the day-to-day activities of the entity.
During 2015, Generation formed a limited liability company to build, own, and operate a backup generator. While Generation owns 100% of the backup generator company, it was determined that the entity is a VIE because the customer absorbs price variability from the entity through the fixed price

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

backup generator agreement. Generation provides operating and capital funding to the backup generator company.
During the fourth quarter of 2017 Generation acquired a controlling financial interest in an energy development company. The company is in the development stage and requires additional subordinated financial support from the equity holders to fund activities. Generation is the majority owner with a 62% equity interest and has the power to direct the activities that most significantly affect the economic performance of the company.
Renewable Energy Project Companies
In July 2017, Generation entered into an arrangement to sell a 49% interest in ExGen Renewable Partners, LLC (the Renewable JV) to an outside investor for $400 million of cash plus immaterial working capital and other customary post-closing adjustments. The Renewable JV meets the definition of a VIE because the Renewable JV has a similar structure to a limited partnership and the limited partners do not have kick out rights with respect to the general partner. Generation is the primarily beneficiary because Generation manages the day-to-day activities of the entity; therefore, Generation will continue to consolidate the Renewable JV. The Renewable JV is a collection of wind and solar project entities and some of these project entities are VIEs that are consolidated by the Renewable JV. The details relating to these VIEs are discussed below.
Generation owns a number of limited liability companies that build, own, and operate solar and wind power facilities some of which are owned by the Renewable JV. While Generation or the Renewable JV owns 100% of the solar entities and 100% of the majority of the wind entities, it has been determined that certain of the solar and wind entities are VIEs because the entities require additional subordinated financial support in the form of a parental guarantee of debt, loans from the customers in order to obtain the necessary funds for construction of the solar facilities, or the customers absorb price variability from the entities through the fixed price power and/or REC purchase agreements. Generation is the primary beneficiary of these solar and wind entities that qualify as VIEs because Generation controls the design, construction, and operation of the facilities. Generation provides operating and capital funding to the solar and wind entities for ongoing construction, operations and maintenance and there is limited recourse related to Generation related to certain solar and wind entities.
While Generation or the Renewable JV owns 100% of the majority of the wind entities, six of the projects have noncontrolling equity interests of 1% held by third parties and one of the projects has noncontrolling equity interests related to its Class B Membership Interest (see additional details below). The entities with noncontrolling equity interests of 1% held by third parties meet the definition of a VIE because the entities have noncontrolling equity interest holders that absorb variability from the wind projects. Generation’s or the Renewable JV's current economic interests in five of these projects is significantly greater than its stated contractual governance rights and all of these projects have reversionary interest provisions that provide the noncontrolling interest holder with a purchase option, certain of which are considered bargain purchase prices, which, if exercised, transfers ownership of the projects to the noncontrolling interest holder upon either the passage of time or the achievement of targeted financial returns. The ownership agreements with the noncontrolling interests state that Generation or the Renewable JV are to provide financial support to the projects in proportion to its current 99% economic interests in the projects. Generation provides operating and capital funding to the wind project entities for ongoing construction, operations and maintenance and there is limited recourse to Generation related to certain wind project entities. However, no additional support to these projects beyond what was contractually required has been provided during 2017. Generation is the primary beneficiary of these wind entities because Generation controls the design, construction, and operation of the facilities.
In December 2016, Generation sold 100% of the Class B Membership Interests to a tax equity investor and retained 100% of the Class A Membership Interests of its equity interest in one of its wind

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

entities that was previously consolidated under the voting interest model. The wind entity meets the definition of a VIE because the company has a similar structure to a limited partnership and the limited partners do not have kick-out rights with respect to the general partner. While Generation is the minority interest holder, Generation is the primary beneficiary, because Generation manages the day-to-day activities of the entity. Therefore, the entity continues to be consolidated by Generation.
The renewable energy project companies VIE group was previously separated into two VIE groups for solar project limited liability companies and wind project companies as of December 31, 2016.
Retail Power and Gas Companies
In March 2014, Generation began consolidating retail power and gas VIEs for which Generation is the primary beneficiary as a result of energy supply contracts that give Generation the power to direct the activities that most significantly affect the economic performance of the entities. Generation does not have an equity ownership interest in these entities, but provides approximately $30 million in credit support for the retail power and gas companies for which Generation is the sole supplier of energy. These entities are included in Generation’s consolidated financial statements, and the consolidation of the VIEs do not have a material impact on Generation’s financial results or financial condition.
CENG
CENG is a joint venture between Generation and EDF. On April 1, 2014, Generation, CENG, and subsidiaries of CENG executed the Nuclear Operating Services Agreement (NOSA) pursuant to which Generation now conducts all activities associated with the operations of the CENG fleet and provides corporate and administrative services to CENG and the CENG fleet for the remaining life of the CENG nuclear plants as if they were a part of the Generation nuclear fleet, subject to the CENG member rights of EDF. As a result of executing the NOSA, CENG qualifies as a VIE due to the disproportionate relationship between Generation’s 50.01% equity ownership interest and its role in conducting the operational activities of CENG and the CENG fleet conveyed through the NOSA. Further, since Generation is conducting the operational activities of CENG and the CENG fleet, Generation qualifies as the primary beneficiary of CENG and, therefore, is required to consolidate the results of operations and financial position of CENG.
Exelon and Generation, where indicated, provide the following support to CENG (see Note 26 — Related Party Transactions for additional information regarding Generation's and Exelon’s transactions with CENG):
under power purchase agreements with CENG, Generation purchased or will purchase 50.01% of the available output generated by the CENG nuclear plants not subject to other contractual agreements from January 2015 through the end of the operating life of each respective plant. However, pursuant to amendments dated March 31, 2015, the energy obligations under the Ginna Nuclear Power Plant (Ginna) PPAs were suspended during the term of the Reliability Support Services Agreement (RSSA), through the end of March 31, 2017. With the expiration of the RSSA, the PPA was reinstated beginning April 1, 2017. (see Note 3 — Regulatory Matters for additional details),
Generation provided a $400 million loan to CENG. As of December 31, 2017, the remaining obligation is $333 million, including accrued interest, which reflects the principal payment made in January 2015,
Generation executed an Indemnity Agreement pursuant to which Generation agreed to indemnify EDF against third-party claims that may arise from any future nuclear incident (as defined in the Price-Anderson Act) in connection with the CENG nuclear plants or their

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

operations. Exelon guarantees Generation’s obligations under this Indemnity Agreement. (See Note 23 — Commitments and Contingencies for more details),
Generation and EDF share in the $637 million of contingent payment obligations for the payment of contingent retrospective premium adjustments for the nuclear liability insurance, and
Exelon has executed an agreement to provide up to $245 million to support the operations of CENG as well as a $165 million guarantee of CENG’s cash pooling agreement with its subsidiaries.
As of December 31, 2016, Exelon and Generation had the following consolidated VIEs that are no longer VIEs as of December 31, 2017:
Retail Gas Group
During 2009, Constellation formed a retail gas group to enter into a collateralized gas supply agreement with a third-party gas supplier. The retail gas group was determined to be a VIE because there was not sufficient equity to fund the group’s activities without additional credit support and a $75 million parental guarantee provided by Generation. As the primary beneficiary, Generation consolidated the retail gas group. During the second quarter of 2017, the collateral structure was terminated with the third-party gas supplier except for the $75 million parental guarantee provided by Generation. Although the parental guarantee remains, this is considered customary and reasonable for the unsecured position Generation has with the third-party gas supplier. As a result of the termination, the retail gas group no longer met the definition of a VIE. However, the retail gas group continues to be consolidated by Generation under the voting interest model.
Other Generating Facilities
Prior to 2017, Generation owned 90% of a biomass fueled, combined heat and power company. In the second quarter of 2015, the entity was deemed to be a VIE because the entity required additional subordinated financial support in the form of a parental guarantee provided by Generation for up to $275 million in support of the payment obligations related to the Engineering, Procurement and Construction contract for the facility in support of one of its other generating facilities. During the third quarter of 2017, the ownership of the entity increased to 99%, all payment obligations related to the EPC contract were satisfied, and the parental guarantee provided by Generation was terminated. As a result, the entity is now sufficiently capitalized and no longer meets the definition of a VIE. However, the biomass facility continues to be consolidated by Generation under the voting interest model.
As of December 31, 2017 and 2016, Exelon's and ACE's consolidated VIE consists of:
ACE Transition Funding
A special purpose entity formed by ACE for the purpose of securitizing authorized portions of ACE’s recoverable stranded costs through the issuance and sale of transition bonds. Proceeds from the sale of each series of transition bonds by ATF were transferred to ACE in exchange for the transfer by ACE to ATF of the right to collect a non-bypassable Transition Bond Charge from ACE customers pursuant to bondable stranded costs rate orders issued by the NJBPU in an amount sufficient to fund the principal and interest payments on transition bonds and related taxes, expenses and fees. During the three years ended December 31, 2017, 2016 and 2015, ACE transferred $48 million, $60 million and $61 million to ATF, respectively.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

As of December 31, 2016, Exelon and BGE had the following consolidated VIE that is no longer a VIE as of December 31, 2017:
RSB BondCo LLC.
In 2007, BGE formed RSB BondCo LLC (BondCo), a special purpose bankruptcy remote limited liability company, to acquire and hold rate stabilization property and to issue and service bonds secured by the rate stabilization property. In June 2007, BondCo purchased rate stabilization property from BGE, including the right to assess, collect, and receive non-bypassable rate stabilization charges payable by all residential electric customers of BGE. These charges were assessed in order to recover previously incurred power purchase costs that BGE deferred pursuant to Senate Bill 1. In the second quarter of 2017 the rate stabilization bonds were fully redeemed and BGE remitted its final payment to BondCo. Upon redemption of the bonds, BondCo no longer meets the definition of a variable interest entity.
BondCo’s assets were restricted and could only be used to settle the obligations of BondCo. Further, BGE was required to remit all payments it received from customers for rate stabilization charges to BondCo. During 2017, 2016 and 2015, BGE remitted $22 million, $86 million and $86 million, respectively, to BondCo.
For each of the consolidated VIEs noted above, except as otherwise noted:
the assets of the VIEs are restricted and can only be used to settle obligations of the respective VIE;
Exelon, Generation, BGE, PHI and ACE did not provide any additional material financial support to the VIEs;
Exelon, Generation, BGE, PHI and ACE did not have any material contractual commitments or obligations to provide financial support to the VIEs; and
the creditors of the VIEs did not have recourse to Exelon’s, Generation’s, BGE’s, PHI's or ACE's general credit.
As of December 31, 2017 and 2016, ComEd, PECO, Pepco and DPL do not have any material consolidated VIEs.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Assets and Liabilities of Consolidated VIEs
Included within the balances above are assets and liabilities of certain consolidated VIEs for which the assets can only be used to settle obligations of those VIEs, and liabilities that creditors, or beneficiaries, do not have recourse to the general credit of the Registrants. As of December 31, 2017 and 2016, these assets and liabilities primarily consisted of the following:
  December 31, 2017
       Successor  
   
Exelon(a)
 Generation 
PHI(a)
 ACE
Cash and cash equivalents $126
 $126
 $
 $
Restricted cash
64
 58
 6
 6
Accounts receivable, net        
 Customer 138
 138
 
 
 Other 25
 25
 
 
Inventory        
 Materials and supplies 205
 205
 
 
Other current assets 45
 41
 4
 
 Total current assets 603

593

10

6
          
Property, plant and equipment, net 6,186
 6,186
 
 
Nuclear decommissioning trust funds 2,502
 2,502
 
 
Other noncurrent assets 274
 243
 31
 23
 Total noncurrent assets 8,962

8,931

31

23
 Total assets $9,565

$9,524

$41

$29
          
Long-term debt due within one year $102
 $67
 $35
 $31
Accounts payable 114
 114
 
 
Accrued expenses 65
 64
 1
 1
Unamortized energy contract liabilities 18
 18
 
 
Other current liabilities 7
 7
 
 
 Total current liabilities 306

270

36

32
          
 Long-term debt 1,154
 1,088
 66
 58
 Asset retirement obligations 2,035
 2,035
 
 
 Unamortized energy contract liabilities 5
 5
 
 
 Other noncurrent liabilities 112
 112
 
 
 Noncurrent liabilities 3,306

3,240

66

58
 Total liabilities $3,612

$3,510

$102

$90
__________
(a)Includes certain purchase accounting adjustments not pushed down to the ACE standalone entity.



Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

  December 31, 2016
         Successor  
   
Exelon(a)(b)
 Generation BGE 
PHI(a)
 ACE
Cash and cash equivalents $150
 $150
 $
 $
 $
Restricted cash 59
 27
 23
 9
 9
Accounts receivable, net          
 Customer 371
 371
 
 
 
 Other 48
 48
 
 
 
Mark-to-market derivative assets 31
 31
 
 
 
Inventory          
 Materials and supplies 199
 199
 
 
 
Other current assets 50
 44
 
 5
 
 Total current assets 908
 870
 23
 14
 9
            
Property, plant and equipment, net 5,415
 5,415
 
 
 
Nuclear decommissioning trust funds 2,185
 2,185
 
 
 
Goodwill 47
 47
 
 
 
Mark-to-market derivative assets 23
 23
 
 
 
Other noncurrent assets 315
 277
 3
 35
 23
 Total noncurrent assets 7,985
 7,947
 3
 35
 23
 Total assets $8,893
 $8,817
 $26
 $49
 $32
            
Long-term debt due within one year $181
 $99
 $41
 $40
 $35
Accounts payable 269
 269
 
 
 
Accrued expenses 119
 116
 1
 2
 2
Mark-to-market derivative liabilities 60
 60
 
 
 
Unamortized energy contract liabilities 15
 15
 
 
 
Other current liabilities 30
 30
 
 
 
 Total current liabilities 674
 589
 42
 42
 37
            
 Long-term debt 641
 540
 
 101
 89
 Asset retirement obligations 1,904
 1,904
 
 
 
 
Pension obligation(c)
 9
 9
 
 
 
 Unamortized energy contract liabilities 22
 22
 
 
 
 Other noncurrent liabilities 106
 106
 
 
 
 Noncurrent liabilities 2,682
 2,581
 
 101
 89
 Total liabilities $3,356
 $3,170
 $42
 $143
 $126
__________
(a)Includes certain purchase accounting adjustments not pushed down to the ACE standalone entity.
(b)Includes certain purchase accounting adjustments not pushed down to the BGE standalone entity.
(c)Includes the CNEG retail gas pension obligation, which is presented as a net asset balance within the Prepaid pension asset line item on Generation’s balance sheet. See Note 16 - Retirement Benefits for additional details.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Unconsolidated Variable Interest Entities
Exelon’s and Generation’s variable interests in unconsolidated VIEs generally include equity investments and energy purchase and sale contracts. For the equity investments, the carrying amount of the investments is reflected on Exelon’s and Generation’s Consolidated Balance Sheets in Investments. For the energy purchase and sale contracts (commercial agreements), the carrying amount of assets and liabilities in Exelon’s and Generation’s Consolidated Balance Sheets that relate to their involvement with the VIEs are predominately related to working capital accounts and generally represent the amounts owed by, or owed to, Exelon and Generation for the deliveries associated with the current billing cycles under the commercial agreements. Further, Exelon and Generation have not provided material debt or equity support, liquidity arrangements or performance guarantees associated with these commercial agreements.
As of December 31, 2017 and 2016, Exelon and Generation had significant unconsolidated variable interests in sevenandeight VIEs, respectively, for which Exelon or Generation, as applicable, was not the primary beneficiary. These interests include certain equity method investments and certain commercial agreements. Exelon and Generation only include unconsolidated VIEs that are individually material in the tables below. However, Generation has several individually immaterial VIEs that in aggregate represent a total investment of $8 million. These immaterial VIEs are equity and debt securities in energy development companies. The maximum exposure to loss related to these securities is limited to the $8 million included in Investments on Exelon’s and Generation’s Consolidated Balance Sheets.
The following tables present summary information about Exelon and Generation’s significant unconsolidated VIE entities:
December 31, 2017
Commercial
Agreement
VIEs
 
Equity
Investment
VIEs
 Total
Total assets(a)
$625
 $509
 $1,134
Total liabilities(a)
37
 228
 265
Exelon's ownership interest in VIE(a)

 251
 251
Other ownership interests in VIE(a)
588
 30
 618
Registrants’ maximum exposure to loss:    

Carrying amount of equity method investments
 251
 251
Contract intangible asset8
 
 8
Debt and payment guarantees
 
 
Net assets pledged for Zion Station decommissioning(b)
2
 
 2

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

December 31, 2016
Commercial
Agreement
VIEs
 
Equity
Investment
VIEs
 Total
Total assets(a)
$638
 $567
 $1,205
Total liabilities(a)
215
 287
 502
Exelon's ownership interest in VIE(a)

 248
 248
Other ownership interests in VIE(a)
423
 32
 455
Registrants’ maximum exposure to loss:
 
 

Carrying amount of equity method investments
 264
 264
Contract intangible asset9
 
 9
Debt and payment guarantees
 3
 3
Net assets pledged for Zion Station decommissioning(b)
9
 
 9
__________
(a)These items represent amounts on the unconsolidated VIE balance sheets, not on Exelon’s or Generation’s Consolidated Balance Sheets. These items are included to provide information regarding the relative size of the unconsolidated VIEs.
(b)These items represent amounts on Exelon’s and Generation’s Consolidated Balance Sheets related to the asset sale agreement with ZionSolutions, LLC. The net assets pledged for Zion Station decommissioning includes gross pledged assets of $39 million and $113 million as of December 31, 2017 and December 31, 2016, respectively; offset by payables to ZionSolutions LLC of $37 million and $104 million as of December 31, 2017 and December 31, 2016, respectively. These items are included to provide information regarding the relative size of the ZionSolutions LLC unconsolidated VIE.
For each unconsolidated VIE, Exelon and Generation assessed the risk of a loss equal to their maximum exposure to be remote and accordingly, Exelon and Generation have not recognized a liability associated with any portion of the maximum exposure to loss. In addition, there are no agreements with, or commitments by, third parties that would materially affect the fair value or risk of their variable interests in these variable interest entities.
As of December 31, 2017, Exelon's and Generation's unconsolidated VIEs consist of:
Energy Purchase and Sale Agreements
Generation has several energy purchase and sale agreements with generating facilities. Generation has evaluated the significant agreements, ownership structures and risks of each entity, and determined that certain of the entities are VIEs because the entity absorbs risk through the sale of fixed price power and renewable energy credits. Generation has reviewed the entities and has determined that Generation is not the primary beneficiary of the VIEs because Generation does not have the power to direct the activities that most significantly impact the VIEs economic performance.
ZionSolutions
Generation has an asset sale agreement with EnergySolutions, Inc. and certain of its subsidiaries, including ZionSolutions, LLC (ZionSolutions), which is further discussed in Note 15 — Asset Retirement Obligations. Under this agreement, ZionSolutions can put the assets and liabilities back to Generation when decommissioning activities under the asset sale agreement are complete. Generation has evaluated this agreement and determined that, through the put option, it has a variable interest in ZionSolutions but is not the primary beneficiary. As a result, Generation has concluded that consolidation is not required. Other than the asset sale agreement, Exelon and Generation do not have any contractual or other obligations to provide additional financial support and ZionSolutions’ creditors do not have any recourse to Exelon’s or Generation’s general credit.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Investment in Distributed Energy Companies
In July 2014, Generation entered into an arrangement to purchase a 90% equity interest and 90% of the tax attributes of a distributed energy company. Generation contributed a total $85 million of equity. The distributed energy company meets the definition of a VIE because the company has a similar structure to a limited partnership and the limited partners do not have kick-out rights of the general partner. Generation is not the primary beneficiary; therefore, the investment continues to be recorded using the equity method.
During 2015, a company that is consolidated by Generation as a VIE entered into an arrangement to purchase a 90% equity interest and 99% of the tax attributes of another distributed energy company (see additional details in the Consolidated Variable Interest Entities section above). The equity holders (of which Generation is one) contributed to the distributed energy company a total of $227 million of equity in proportion to their ownership interests. The equity holders provided a parental guarantee of up to $275 million in support of equity contributions to the distributed energy company. As all equity contributions were made as of the first quarter of 2017, there is no further payment obligation under the parental guarantee. The distributed energy company meets the definition of a VIE because the company has a similar structure to a limited partnership and the limited partners do not have kick-out rights of the general partner. Generation is not the primary beneficiary; therefore, the investment is recorded using the equity method.
Both distributed energy companies from the 2015 and 2014 arrangements are considered related parties to Generation.
As of December 31, 2016, Exelon and Generation had the following unconsolidated VIE that is no longer a VIE as of December 31, 2017:
Investment in Energy Generating Facility
As of December 31, 2016, Generation had an equity investment in an energy generating facility. The entity was a VIE because Generation guaranteed the debt of the entity, provided equity support, and provided operating services to the entity. Generation was not the primary beneficiary of the entity because Generation did not have the power to direct the activities that most significantly impacted the VIE’s economic performance. During 2017, Generation sold its equity investment in the entity; therefore, the entity is no longer a VIE as of December 31, 2017.
ComEd, PECO and BGE
The financing trust of ComEd, ComEd Financing III, and the financing trusts of PECO, PECO Trust III and PECO Trust IV, are not consolidated in Exelon’s, ComEd’s, or PECO’s financial statements. These financing trusts were created to issue mandatorily redeemable trust preferred securities. ComEd and PECO have concluded that they do not have a significant variable interest in ComEd Financing III, PECO Trust III, or PECO Trust IV as each Registrant financed its equity interest in the financing trusts through the issuance of subordinated debt and, therefore, has no equity at risk. 
The financing trust of BGE, BGE Capital Trust II, was created for the purpose of issuing mandatorily redeemable trust preferred securities. In the third quarter of 2017, BGE redeemed the securities pursuant to the optional redemption provisions of the Indenture, under which the subordinated debt securities were issued, and dissolved BGE Capital Trust II. Prior to dissolution, the BGE Capital Trust II was not consolidated in Exelon's or BGE's financial statements. BGE concluded it did not have a significant variable interest in BGE Capital Trust II as BGE financed its equity interest in the financing trust through the issuance of subordinated debt and, therefore, had no equity at risk. See Note 13 — Debt and Credit Agreements for additional information.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

3.  Regulatory Matters (All Registrants)
The following matters below discuss the status of material regulatory and legislative proceedings of the Registrants.
Distribution Base Rate Case Proceedings
The following tables show the completed and pending distribution base rate case proceedings in 2022.
Completed Distribution Base Rate Case Proceedings
Registrant/JurisdictionFiling DateServiceRequested Revenue Requirement IncreaseApproved Revenue Requirement IncreaseApproved ROEApproval DateRate Effective Date
ComEd - Illinois(a)
April 16, 2021Electric$51 $46 7.36%December 1, 2021January 1, 2022
April 15, 2022Electric199 199 7.85%November 17, 2022January 1, 2023
PECO - PennsylvaniaMarch 30, 2021Electric246 132 
N/A(b)
November 18, 2021January 1, 2022
March 31, 2022Natural Gas82 55 October 27, 2022January 1, 2023
BGE - Maryland(c)
May 15, 2020 (amended September 11, 2020)Electric203 140 9.50%December 16, 2020January 1, 2021
Natural Gas108 74 9.65%
Pepco - District of Columbia(d)
May 30, 2019 (amended June 1, 2020)Electric136 109 9.275%June 8, 2021July 1, 2021
Pepco - Maryland(e)
October 26, 2020 (amended March 31, 2021)Electric104 52 9.55%June 28, 2021June 28, 2021
DPL - Maryland
September 1, 2021 (amended December 23, 2021)(f)
Electric27 13 9.60%March 2, 2022March 2, 2022
May 19, 2022(g)
Electric38 29 9.60%December 14, 2022January 1, 2023
DPL - DelawareJanuary 14, 2022 (amended August 15, 2022)Natural Gas13 9.60%October 12, 2022August 14, 2022
ACE - New Jersey(h)
December 9, 2020 (amended February 26, 2021)Electric67 41 9.60%July 14, 2021January 1, 2022
__________
(a)Pursuant to EIMA and FEJA, ComEd’s electric distribution rates are established through a performance-based formula, which sunsets at the end of 2022. See discussion of CEJA below for details on the transition away from the electric distribution formula rate. The electric distribution formula rate includes decoupling provisions and, as a result, ComEd's electric distribution formula rate revenues are not impacted by abnormal weather, usage per customer, or number of customers. Under the performance-based formula, ComEd filed annual updates to its electric distribution formula rate on or before May 1st, with resulting rates effective in January of the following year. ComEd’s annual electric distribution formula rate update is based on prior year actual costs and current year projected capital additions (initial year revenue requirement). The update also reconciles any differences between the revenue requirement in effect for the prior year and actual costs incurred from the year (annual reconciliation).
171

Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 3 — Regulatory Matters

ComEd’s 2022 approved revenue requirement reflects an increase of $37 million for the initial year revenue requirement for 2022 and an increase of $9 million related to the annual reconciliation for 2020. The revenue requirement for 2022 provides for a weighted average debt and equity return on distribution rate base of 5.72% inclusive of an allowed ROE of 7.36%, reflecting the monthly average yields for 30-year treasury bonds plus 580 basis points. The reconciliation revenue requirement for 2020 provides for a weighted average debt and equity return on distribution rate base of 5.69%, inclusive of an allowed ROE of 7.29%, reflecting the monthly yields on 30-year treasury bonds plus 580 basis points less a performance metrics penalty of 7 basis points.

ComEd’s 2023 approved revenue requirement above reflects an increase of $144 million for the initial year revenue requirement for 2023 and an increase of $55 million related to the annual reconciliation for 2021. The revenue requirement for 2023 provides for a weighted average debt and equity return on distribution rate base of 5.94% inclusive of an allowed ROE of 7.85%, reflecting the monthly average yields for 30-year treasury bonds plus 580 basis points. The reconciliation revenue requirement for 2021 provides for a weighted average debt and equity return on distribution rate base of 5.91%, inclusive of an allowed ROE of 7.78%, reflecting the monthly yields on 30-year treasury bonds plus 580 basis points less a performance metrics penalty of 7 basis points. This is ComEd's last performance-based electric distribution formula rate update filing under EIMA. See discussion of CEJA below for details on the transition away from the electric distribution formula rate.
(b)The PECO electric and natural gas base rate case proceedings were resolved through settlement agreements, which did not specify an approved ROE.
(c)Reflects a three-year cumulative multi-year plan for 2021 through 2023. BGE proposed to use certain tax benefits to fully offset the increases in 2021 and 2022 and partially offset the increase in 2023. The MDPSC awarded BGE electric revenue requirement increases of $59 million, $39 million, and $42 million, before offsets, in 2021, 2022, and 2023, respectively, and natural gas revenue requirement increases of $53 million, $11 million, and $10 million, before offsets, in 2021, 2022, and 2023, respectively. However, the MDPSC utilized the tax benefits to fully offset the increases in 2021 and January 2022 such that customer rates remained unchanged. For the remainder of 2022, the MDPSC chose to offset only 25% of the cumulative 2021 and 2022 electric revenue requirement increases and 50% of the cumulative gas revenue requirement increases. In 2021, the MDPSC deferred a decision on whether to use certain tax benefits to offset the revenue requirement increases in 2023 and directed BGE to make another proposal at the end of 2022. In September 2022 BGE proposed that tax benefits not be used to offset the 2023 revenue requirement increases. On October 26, 2022, the MDPSC accepted BGE's recommendation to not use tax benefits to offset the 2023 revenue requirement increases.
(d)Reflects a cumulative multi-year plan with 18-months remaining in 2021 through 2022. The DCPSC awarded Pepco electric incremental revenue requirement increases of $42 million and $67 million, before offsets, for 2021 and 2022, respectively. However, the DCPSC utilized the acceleration of refunds for certain tax benefits along with other rate relief to partially offset the customer rate increases by $22 million and $40 million for 2021 and 2022, respectively.
(e)Reflects a three-year cumulative multi-year plan for April 1, 2021 through March 31, 2024. The MDPSC awarded Pepco electric incremental revenue requirement increases of $21 million, $16 million, and $15 million, before offsets, for the 12-month periods ending March 31, 2022, 2023, and 2024, respectively. Pepco proposed to utilize certain tax benefits to fully offset the increase through 2023 and partially offset customer rate increases in 2024. However, the MDPSC only utilized the acceleration of refunds for certain tax benefits to fully offset the increases such that customer rates remain unchanged through March 31, 2022. On February 23, 2022, the MDPSC chose to offset 25% of the cumulative revenue requirement increase through March 31, 2023. Whether certain tax benefits will be used to offset the customer rate increases for the twelve months ended March 31, 2024 has not been decided, and Pepco cannot predict the outcome.
(f)The approved settlement reflects a 9.60% ROE, which is solely for the purposes of calculating AFUDC and regulatory asset carrying costs.
(g)Reflects a three-year cumulative multi-year plan for January 1, 2023 through December 31, 2025. The MDPSC awarded DPL electric incremental revenue requirement increases of $17 million, $6 million, and $6 million for 2023, 2024, and 2025, respectively.
(h)Requested and approved increases are before New Jersey sales and use tax. The order allows ACE to retain approximately $11 million of certain tax benefits which resulted in a decrease to income tax expense in Exelon's, PHI's, and ACE's Consolidated Statements of Operations and Comprehensive Income in the third quarter of 2021.

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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 3 — Regulatory Matters
Pending Distribution Base Rate Case Proceedings
Registrant/JurisdictionFiling DateServiceRequested Revenue Requirement IncreaseRequested ROEExpected Approval Timing
ComEd - Illinois(a)
January 17, 2023Electric$1,472 10.50% to 10.65%Fourth quarter of 2023
DPL - Delaware(b)
December 15, 2022Electric60 10.50%Second quarter of 2024
__________
(a)Reflects a four-year cumulative MRP for January 1, 2024 to December 31, 2027 and total requested revenue requirement increases of $877 million effective January 1, 2024, $175 million effective January 1, 2025, $217 million effective January 1, 2026, and $203 million effective January 1, 2027, based on forecasted revenue requirements. The revenue requirement will provide for a weighted average debt and equity return on distribution rate base of 7.43% in 2024, 7.50% in 2025, 7.62% in 2026, and 7.70% in 2027, inclusive of an allowed ROE of 10.50% in 2024, 10.55% in 2025, 10.60% in 2026, and 10.65% in 2027. The requested revenue requirements are based on capital structures that reflect between 50.58% and 51.19% common equity. ComEd’s MRP also includes a proposed rate phase-in to defer approximately $307 million of the $877 million year-over-year increase for 2024 revenue from 2024 to 2026.
(b)The rates will go into effect on July 15, 2023, subject to refund.

Transmission Formula Rates
The Utility Registrants' transmission rates are each established based on a FERC-approved formula. ComEd, BGE, Pepco, DPL, and ACE are required to file an annual update to the FERC-approved formula on or before May 15, and PECO is required to file on or before May 31, with the resulting rates effective on June 1 of the same year. The annual update for ComEd is based on prior year actual costs and current year projected capital additions (initial year revenue requirement). The update for ComEd also reconciles any differences between the revenue requirement in effect beginning June 1 of the prior year and actual costs incurred for that year (annual reconciliation). The annual update for PECO is based on prior year actual costs and current year projected capital additions, accumulated depreciation, and accumulated deferred income taxes. The annual update for BGE, Pepco, DPL, and ACE is based on prior year actual costs and current year projected capital additions, accumulated depreciation, depreciation and amortization expense, and accumulated deferred income taxes. The update for PECO, BGE, Pepco, DPL, and ACE also reconciles any differences between the actual costs and actual revenues for the calendar year (annual reconciliation).
For 2022, the following total increases/(decreases) were included in the Utility Registrants' electric transmission formula rate updates:
Registrant(a)
Initial Revenue Requirement IncreaseAnnual Reconciliation (Decrease) IncreaseTotal Revenue Requirement Increase
Allowed Return on Rate Base(b)
Allowed ROE(c)
ComEd$24 $(24)$— 8.11 %11.50 %
PECO23 16 39 7.30 %10.35 %
BGE25 (4)16 (d)7.30 %10.50 %
Pepco16 15 31 7.60 %10.50 %
DPL11 7.09 %10.50 %
ACE21 13 34 7.18 %10.50 %
__________
(a)All rates are effective June 1, 2022 - May 31, 2023, subject to review by interested parties pursuant to review protocols of each Utility Registrants' tariff.
(b)Represents the weighted average debt and equity return on transmission rate bases. For ComEd and PECO, the common equity component of the ratio used to calculate the weighted average debt and equity return on the transmission formula rate base is currently capped at 55% and 55.75%, respectively.
(c)The rate of return on common equity for each Utility Registrant includes a 50-basis-point incentive adder for being a member of a RTO.
(d)The increase in BGE's transmission revenue requirement includes a $5 million reduction related to a FERC-approved dedicated facilities charge to recover the costs of providing transmission service to specifically designated load by BGE.
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(Dollars in millions, except per share data unless otherwise noted)

Note 3 — Regulatory Matters
Other State Regulatory Matters
Illinois Regulatory Matters
Tax Cuts and Jobs ActCEJA (Exelon and ComEd).On January 18, 2018,September 15, 2021, the ICC approved ComEd's petition filed on January 5, 2018 seeking approval to pass back to customers beginning February 1, 2018 $201 million in tax savings resultingGovernor of Illinois signed into law CEJA. CEJA includes, among other features, (1) procurement of CMCs from the enactment of the TCJA throughqualifying nuclear-powered generating facilities, (2) a reduction in electric distribution rates.  The amounts being passed back to customers reflect the benefit of lower income tax rates beginning January 1, 2018 and the settlement of a portion of deferred income tax regulatory liabilities established upon enactment of the TCJA. Refer to Note 14 - Income Taxes for more detail on Corporate Tax Reform.
Electric Distribution Formula Rate (Exelon and ComEd). ComEd’s electric distribution rates are established through a performance-based formula rate. ComEd is requiredrequirement to file an annual updatea general rate case or a new four-year MRP no later than January 20, 2023 to the performance-based formula rate on or before May 1, with resultingestablish rates effective in January of the following year. This annual electricafter ComEd’s existing performance-based distribution formula rate update is based on prior year actual costs and current year projected capital additions (initial revenue requirement). The update also reconciles any differences between the revenue requirement in effect for the prior year and actual costs incurred for that year (annual reconciliation). Throughout each year, ComEd records regulatory assets or regulatory liabilities and corresponding increases or decreases to Operating revenues for any differences between the revenue requirement in effect and ComEd’s best estimate of the revenue requirement expected to be approved by the ICC for that year’s reconciliation. The regulatory asset associated with electric distribution formula rate is amortized to Operating revenues in ComEd's Consolidated Statement of Operations and Comprehensive Income as the associated amounts are recovered through rates. Changes to the distribution formula rate as a result of FEJA are discussed below.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

For each of the following years, the ICC approved the following total increases/(decreases) in ComEd's electric distributions formula rate filings:
Annual Electric Distribution Filings2017
2016
2015 
ComEd's requested total revenue requirement increase (decrease)$96
 $138
 $(50) 
       
Final ICC Order      
Initial revenue requirement increase$78
 $134
 $85
 
Annual reconciliation increase (decrease)18
 (7) (152) 
Total revenue requirement increase (decrease)$96
 $127
(a) 
$(67) 
       
Allowed Return on Rate Base:      
  Initial revenue requirement6.47% 6.71% 7.05% 
  Annual reconciliation6.45% 6.69% 7.02% 
Allowed ROE:      
  Initial revenue requirement8.40% 8.64% 9.14% 
  Annual reconciliation8.34%
(b) 
8.59%
(b) 
9.09%
(b) 
       
Effective date of ratesJanuary 2018
 January 2017
 January 2016
 
__________
(a)On March 22, 2017, the ICC issued an order approving ComEd's proposal to reduce the 2016 revenue requirement by $18 million, which was reflected in customer rates beginning in April 2017. This reduction is not reflected in the 2016 revenue requirement amounts above.
(b)Includes a reduction of 6 basis points in 2017 and 5 basis points in 2016 and 2015 for a reliability performance metric penalty.
Illinois Future Energy Jobs Act (Exelon, Generation and ComEd)
Background
On December 7, 2016, FEJA was signed into law by the Governor of Illinois. FEJA went into effect on June 1, 2017, and includes, among other provisions, (1) a ZES providing compensation for certain nuclear-powered generating facilities, (2)sunsets, (3) an extension of and certain adjustments to ComEd’s electric distribution formula rate, (3) new cumulative persisting annual energy efficiency MWh savings goals, for ComEd, (4) revisions to the Illinois RPS requirements, (5) provisionsincluding expanded charges for adjustments to or termination of FEJA programs if the average impact on ComEd’s customer rates exceeds specified limits, (6) revisions to the existing net metering statute to (i) mandate net metering for community generation projects, and establish billing procedures for subscribers to those projects, (ii) provide immediately for netting at the energy-only rate for nonresidential customers, and (iii) transition from netting at the full retail rate to the energy-only rate for certain residential net metering customers once the net meter customer load equals 5% of total peak demand supplied in the previous year and (7) support for low income rooftop and community solar programs.
Zero Emission Standard
FEJA includes a ZES that provides compensation through the procurement of ZECs targeted at preserving the environmental attributesRECs from wind and solar generation, (5) a requirement to accelerate amortization of zero-emissions nuclear-powered generating facilitiesComEd’s unprotected excess deferred income taxes (EDIT) that meet specific eligibility criteria.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

On September 11, 2017,ComEd was previously directed by the ICC approvedto amortize using the IPA's ZES Procurement Plan filed withaverage rate assumption method which equates to approximately 39.5 years, and (6) requirements that ComEd and the ICC initiate and conduct various regulatory proceedings on July 31, 2017. Bidders interested in participating insubjects including ethics, spending, grid investments, and performance metrics. Regulatory or legal challenges regarding the procurement process had 14 days following the ICC's approval of the plan to submit the required eligibility information and become qualified bidders. Generation’s Clinton and Quad Cities nuclear plants timely submitted the required eligibility information to the ICC and responded to follow up questions. Winning bidders will contract directly with Illinois utilities, including ComEd, for 10-year terms extending through May 31, 2027. The ZEC price will be based upon the current social cost of carbon as determined by the Federal government and is initially established at $16.50 per MWh of production, subject to annual future adjustments determined by the IPA for specified escalation and pricing adjustment mechanisms designed to lower the ZEC price based on increases in underlying energy and capacity prices. Illinois utilities will be required to purchase all ZECs delivered by the zero-emissions nuclear-powered generating facilities, subject to annual cost caps. For the initial delivery year, June 1, 2017 to May 31, 2018, the ZEC annual cost cap is set at $235 million (ComEd’s share is approximately $170 million). For subsequent delivery years, the IPA-approved targeted ZEC procurement amounts will change based on forward energy and capacity prices. ZECs delivered to Illinois utilities in excess of the annual cost cap will be paid in subsequent years if the payments do not exceed the prescribed annual cost cap for that year.
ComEd recovers all costs associated with purchasing ZECs through a rate rider that provides for an annual reconciliation and true-up to actual costs incurred by ComEd to purchase ZECs, with any difference to be credited tovalidity or collected from ComEd’s retail customers in subsequent periods with interest. ComEd began billing its retail customers under its new ZEC rate rider on June 1, 2017.
On February 14, 2017, two lawsuits were filed in the Northern District of Illinois against the IPA alleging that the state’s ZEC program violates certain provisions of the U.S. Constitution.  One lawsuit was filed by customers of ComEd, led by the Village of Old Mill Creek, and the other was brought by the EPSA and three other electric suppliers. Both lawsuits argue that the Illinois ZEC program will distort PJM's FERC-approved energy and capacity market auction system of setting wholesale prices, and seek a permanent injunction preventing the implementation of the program.CEJA are possible and Exelon intervened and filed motions to dismiss in both lawsuits. In addition, on March 31, 2017, plaintiffs in both lawsuits filed motions for preliminary injunction with the court; the court stayed briefing on the motions for preliminary injunction until the resolution of the motions to dismiss.On July 14, 2017, the district court granted the motions to dismiss. On July 17, 2017, the plaintiffs appealed the decision to the Seventh Circuit. Briefs were fully submitted on December 12, 2017, the Court heard oral argument on January 3, 2018. At the argument, the Court asked for supplemental briefing, which was filed on January 26, 2018. ExelonComEd cannot reasonably predict the outcome of these lawsuits. It is possible that resolution of these matters could have a material, unfavorable impact on Exelon’s and Generation’s results of operations, cash flows and financial positions.any such challenges.
See Note 8 — Early Nuclear Plant Retirements for additional information regarding the economic challenges facing Generation’s Clinton and Quad Cities nuclear plants and the expected benefits of the ZES.
ComEd Electric Distribution Rates
FEJA extended the sunset dateComEd filed, and received approval for, ComEd’sits last performance-based electric distribution formula rate update filing under EIMA in 2022; those rates are in effect throughout 2023.
On February 3, 2022, the ICC approved a tariff that establishes the process under which ComEd will reconcile its 2022 and 2023 rate year revenue requirements with actual costs. Those reconciliation amounts will be determined using the same process as were used for prior reconciliations under the performance-based electric distribution formula rate. Using that process, for the rate years 2022 and 2023 ComEd will ultimately collect revenues from 2019customers reflecting each year’s actual recoverable costs, year-end rate base, and a weighted average debt and equity return on distribution rate base, with the ROE component based on the annual average of the monthly yields of the 30-year U.S. Treasury bonds plus 580 basis points. ComEd will in 2023 file with the ICC the first such petition to reconcile its 2022 actual costs with the endapproved revenue requirement that was in effect in 2022. The rate year 2023 reconciliation will be filed in 2024.
Beginning in 2024, ComEd will recover from retail customers, subject to certain exceptions, the costs it incurs to provide electric delivery services either through its electric distribution rate or other recovery mechanisms authorized by CEJA. On January 17, 2023, ComEd filed a petition with the ICC seeking approval of 2022, allowed ComEd to revisea MRP for 2024-2027. The MRP supports a multi-year grid plan (Grid Plan), also filed on January 17, covering planned investments on the electric distribution formula ratesystem within ComEd’s service area through 2027. Costs incurred during each year of the multi-year plan are subject to eliminateICC review and the ROE collar, and allowed ComEd to implement a decoupling tariff if the electric distribution formula rate is terminated at any time. ComEd revised its electric distribution formula rate to eliminate the ROE collar, which eliminates any unfavorable or favorable impacts of weather or load from ComEd’s electric distribution formula rate revenues beginningplan’s revenue requirement for each year will be reconciled with the actual costs that the ICC determines are prudently and reasonably incurred for that year. The reconciliation filedis subject to adjustment for certain costs, including a limitation on recovery of costs that are more than 105% of certain costs in 2018 for the 2017 calendar year. Eliminationpreviously approved MRP revenue requirement, absent a modification of the rate plan itself. Thus, for example, the rate adjustments necessary to reconcile 2024 revenues to ComEd’s actual 2024 costs incurred would take effect in January 2026 after the ICC’s review during 2025. The ICC must issue its decision on both the MRP and Grid Plan by mid-December 2023, for rates to begin with the January 2024 billing cycle.
In January 2022, ComEd filed a request with the ICC proposing performance metrics that would be used in determining ROE collar effectively offsets the favorable or unfavorable impacts to ComEd's electric distribution formula rate revenues associated with variations in delivery volumes associated with above or below normal weather, numbers of customers or usage per customer. ComEd began reflecting the impacts of this change in its electric distribution services costs regulatory assetincentives and penalties in the first quarterevent ComEd filed a MRP in January 2023. On September 27, 2022, the ICC issued a final order approving seven performance metrics that provide symmetrical performance adjustments of 32 total basis points to ComEd’s rate of return on common equity based on the extent to which ComEd achieves the annual performance goals. On November 10, 2022, the ICC granted ComEd's application for rehearing, in part. Rehearing on those issues must conclude by April 9, 2023. It is unclear if rehearing will result in modifications to the ICC-approved performance and tracking metrics. ComEd will make its initial filing in 2025 to assess performance achieved under the metrics in 2024, and to determine any ROE adjustment, which would take effect in 2026.

Carbon Mitigation Credit
CEJA establishes decarbonization requirements for Illinois as well as programs to support the retention and development of emissions-free sources of electricity. ComEd is required to purchase CMCs from participating
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Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
2017. Asnuclear-powered generating facilities between June 1, 2022 and May 31, 2027. The price to be paid for each CMC was established through a competitive bidding process that included consumer-protection measures that capped the maximum acceptable bid amount and a formula that reduces CMC prices by an energy price index, the base residual auction capacity price in the ComEd zone of PJM, and the monetized value of any federal tax credit or other subsidy if applicable. The consumer protection measures contained in CEJA will result in net payments to ComEd ratepayers if the energy index, the capacity price and applicable federal tax credits or subsidy exceed the CMC contract price. ComEd began issuing credits to its retail customers under its new CMC rider in the June 2022 billing period and recorded a regulatory asset of $843 million as of December 31, 2017,2022 for the difference between customer credits issued and the credit to be received from the participating nuclear-powered generating facilities.
Under CEJA, the costs of procuring CMCs will be recovered through a new rider, the Rider Carbon-Free Resource Adjustment (Rider CFRA). The Rider CFRA provides for an annual reconciliation and true-up to actual costs incurred or credits received by ComEd to purchase CMCs, with any difference to be credited to or collected from ComEd’s retail customers in subsequent periods. The difference between the net payments to (or receivables from) ComEd ratepayers and the credits received by ComEd to purchase CMCs is recorded to Purchased Power expense with an increaseoffset to its electric distribution services coststhe regulatory asset (or regulatory liability). On December 21, 2022, ComEd filed a supplemental statement to the Rider CFRA proposing that the company recover costs or provide credits faster than the tariff allows, implement monthly reconciliations, and allow the Company to adjust Rider CFRA rates based not only on anticipated differences but also past payments or credits. The ICC approved the proposal on January 19, 2023. If the revised CFRA tariff were in effect as of the balance sheet date, the current portion of the CMC regulatory asset balance would have increased by $117 million as of December 31, 2022, with an offsetting reduction in the noncurrent regulatory asset balance.
Excess Deferred Income Taxes
The ICC initiated a docket to accelerate and fully credit to customers TCJA unprotected property-related EDIT no later than December 31, 2025. On July 7, 2022, the ICC issued a final order on the schedule for the acceleration of EDIT amortization, adopting the proposal as submitted by several parties, including ComEd, ICC Staff, the Illinois Attorney General's Office, and the Citizens Utility Board. EDIT amortization will be credited to customers through a new rider from January 1, 2023 through December 31, 2025.
Beneficial Electrification Plan
On July 1, 2022, ComEd filed a proposed plan to promote beneficial electrification efforts in its Northern Illinois service area with the ICC as required by CEJA. ComEd's plan is designed to meaningfully reduce barriers to beneficial electrification, including those related to electric vehicles (EVs), such as upfront technology adoption costs, charging costs, and charging availability; promote equity and environmental justice; reduce carbon emissions and surface-level pollutants; and support customer education and awareness of electrification options. As proposed, ComEd could expend approximately $32$300 million in total over the three-year period 2023 through 2025. The beneficial electrification plan requests recovery of all those costs through a rider mechanism, under which certain of the costs would be amortized over ten years with a return on the unrecovered balance. On November 10, 2022, in responses to a Staff motion, the ICC approved an interim order dismissing from ComEd’s Beneficial Electrification Plan certain rebates (rebates to support residential customers’ purchase of EVs; and rebates to ComEd’s commercial and industrial customers to support the installation of EV chargers). However, the ICC found that building electrification measures were properly within the scope of beneficial electrification, in line with ComEd’s proposal. The ICC also adopted ComEd’s position regarding the rate impact of spending associated with EV related infrastructure. On November 21, 2022, ComEd filed an application for rehearing of the interim order, which the ICC denied. On December 9, 2022, the Office of the Illinois Attorney General (AG) also sought rehearing. On December 15, 2022, ComEd filed an appeal of the ICC’s interim order and the denial of rehearing with the Illinois Appellate Court. That appeal has been stayed pending the resolution of the balance of the case. Also on December 15, 2022, the ICC denied the AG’s application for rehearing and the AG subsequently filed an appeal. The testimony and hearing phase of this change.
FEJA requiresproceeding has concluded and the parties are now drafting legal briefs on the contested issues. By law the ICC must issue its decision by the end of March, therefore, a final order is expected to be issued by the ICC no later than the first quarter of 2023. At this time, ComEd to make non-recoverable contributions to low income energy assistance programs of $10 million per year for 5 years as long ascannot predict the electric distribution formula rate remains in effect. With the exceptionoutcome of these contributions, ComEd will recover from customers, subjectproceedings.
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Combined Notes to certain caps explained below, the costs it incurs pursuant to FEJA either through its electric distribution formula rate or other recovery mechanisms.Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 3 — Regulatory Matters
Energy Efficiency
Prior to FEJA, Illinois law required ComEd to implement cost-effective energy efficiency measures and, for a 10-year period ending May 31, 2018, cost-effective demand response measures to reduce peak demand by 0.1% over the prior year for eligible retail customers.
Beginning January 1, 2018, FEJA provides for newCEJA extends ComEd’s current cumulative annual energy efficiency MWh savings goals for ComEd, which are designedthrough 2040, adds expanded electrification measures to achieve 21.5% of cumulative persisting annual MWh savings by 2030, as comparedthose goals, increases low-income commitments and adds a new performance adjustment to the deemed baseline of 88 million MWhs of electric power and energy sales. FEJA deems the cumulative persisting annual MWh savings to be 6.6% from 2012 through the end of 2017.efficiency formula rate. ComEd expects its annual spend to spend approximately $350 million to $400 million annuallyincrease in 2023 through 20302040 to achieve these energy efficiency MWh savings goals. In addition, FEJA extendsgoals, which will be deferred as a separate regulatory asset that will be recovered through the peak demand reduction requirement from 2018 to 2026. Because the new requirements apply beginning in 2018, FEJA extends the existing energy efficiency plans, which were due to end on May 31, 2017, through December 31, 2017. FEJA also exempts customers with demandsformula rate over 10 MW fromthe weighted average useful life, as approved by the ICC, of the related energy efficiency plansmeasures.
Energy Efficiency Formula Rate (Exelon and requirements beginning June 1, 2017. On September 11, 2017, the ICC approved ComEd's 2018-2021 energy efficiency plan with minor modifications filed by ComEd with the ICC on June 30, 2017.
As allowed by FEJA, ComEd cancelled its existing energy efficiency rate rider effective June 2, 2017. On August 1, 2017, ComEd filed with the ICC a reconciliation of revenues and costs incurred through the cancellation date. On August 30, 2017, the ICC approved ComEd's request, filed on August 1, 2017, to issue an $80 million credit on retail customers' bills in October 2017 for the majority of the over-recoveries with any final adjustment applicable to the over-recoveries to be billed or credited in the future. As of December 31, 2017, ComEd’s over-recoveries associated with its former energy efficiency rate rider were $4 million and are expected to be refunded to customers in future rates.
ComEd).FEJA allows ComEd to defer energy efficiency costs (except for any voltage optimization costs which are recovered through the electric distribution formula rate) as a separate regulatory asset that is recovered through the energy efficiency formula rate over the weighted average useful life, as approved by the ICC, of the related energy efficiency measures. ComEd earns a return on the energy efficiency regulatory asset at a rate equal to its weighted average cost of capital, which is based on a year-end capital structure and calculated using the same methodology applicable to ComEd’s electric distribution formula rate. Beginning January 1, 2018 through December 31, 2030, the return on equityROE that ComEd earns on its energy efficiency regulatory asset is subject to a maximum downward or upward adjustment of 200 basis points if ComEd’s cumulative persisting annual MWh savings falls short of or exceeds specified percentage benchmarks of its annual incremental savings goal. ComEd is required to file an update to its energy efficiency formula rate on or before June 1st each year, with resulting rates effective in January of the following year. The annual update will beis based on projected current year energy efficiency costs, PJM capacity revenues, and the projected year-end regulatory asset balance less any related deferred income taxes.taxes (initial year revenue requirement). The update will also include a reconciliation ofreconciles any differences between the revenue requirement in effect for the prior year and actual costs incurred from the revenue requirement based on actual prior year costs and actual year-end energy efficiency regulatory asset balances less any related deferred income taxes. ComEd records a regulatory asset or liability and corresponding increase or decrease to

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Operating revenues for any differences between the revenue requirement in effect and ComEd’s best estimate of the revenue requirement expected to be approved by the ICC for that year’s reconciliation.
On August 15, 2017, the ICC approved ComEd's new initial energy efficiency formula rate filed pursuant to FEJA. The order establishes the formula under which energy efficiency rates will be calculated going forward and the revenue requirement used to set the initial rates for the period October 1, 2017 through December 31, 2017. The initial revenue requirement is based on projected costs and projected PJM capacity revenues for the period from June 1, 2017 through December 31, 2017, and projected year-end 2017 energy efficiency regulatory asset balances (less related deferred income taxes)(annual reconciliation). The approved energy efficiency formula rate also provides for revenue decoupling provisions similar to effectively offset the favorable or unfavorable impacts to ComEd's energy efficiency formula rate revenues associated with variationsthose in delivery volumes associated with above or below normal weather, numbers of customers or usage per customer.
On September 11, 2017, the ICC approved ComEd's annual energy efficiencyComEd’s electric distribution formula rate. The order establishes the revenue requirement used to set rates that will take effect in January 2018. The revenue requirement for 2018 is based on projected 2018 energy efficiency costs and PJM capacity revenues, and year-end 2018 energy efficiency regulatory asset balances (less related deferred income taxes).
For each of the following years,During 2022, the ICC approved the following total increases/(decreases)increases in ComEd's requested energy efficiency revenue requirement:
Annual Energy Efficiency FilingsInitial 2017
ComEd's requested total revenue requirement (decrease) increase$(7)
(a) 
$12
    
Allowed Return on Rate Base:   
Initial revenue requirement6.47% 6.47%
Allowed ROE:   
Initial revenue requirement8.40% 8.40%
    
Effective date of rates (b)
October 2017
 January 2018
__________
(a)Reflects higher projected PJM capacity revenues compared to projected energy efficiency costs.
(b)An ICC order on the annual reconciliation of any differences between the revenue requirement in effect and the revenue requirement based on actual costs for 2017 and 2018 is expected in December 2018 and December 2019, respectively.
Renewable Portfolio Standard
Filing DateRequested Revenue Requirement Increase
Approved Revenue Requirement Increase(a)
Approved ROEApproval DateRate Effective Date
May 25, 2022$50 $50 7.85 %October 27, 2022January 1, 2023
Existing Illinois law requires ComEd to purchase each year_________
(a)ComEd’s 2023 approved revenue requirement above reflects an increasing percentageincrease of renewable energy resources$66 million for the customersinitial year revenue requirement for which it supplies electricity. This obligation is satisfied through2023 and a decrease of $16 million related to the procurement of RECs. FEJA revises the Illinois RPS to require ComEd to procure RECsannual reconciliation for all retail customers by June 2019, regardless of the customers’ electricity supplier, and provides support2021. The revenue requirement for low-income rooftop and community solar programs, which will be funded by the existing Renewable Energy Resources Fund and ongoing RPS collections. FEJA also requires ComEd to use RPS collections to fund utility job training and workforce development programs in the amounts of $10 million in each of the years 2017, 2021, and 2025. ComEd recorded a $20 million noncurrent liability as of December 31, 2017 associated with this obligation. ComEd will recover all costs associated with purchasing RECs and funding utility job training and workforce development programs through a new RPS rate rider that2023 provides for a reconciliationweighted average debt and true-up to actual costs, with any difference between revenuesequity return on the energy efficiency regulatory asset and expenses to be credited to or collected from ComEd’s retail customers in subsequent periods with

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

interest.rate base of 5.94% inclusive of an allowed ROE of 7.85%, reflecting the monthly average yields for 30-year treasury bonds plus 580 basis points. The first reconciliation and true-up for RECs will occur in 2021 and cover revenues and costsrevenue requirement for the four-year period beginning June 1, 2017 through May 31, 2021. Subsequently, the RPS rate rider will provide for an annual2021 reconciliation and true-up. ComEd began billing its retail customers under its new RPS rate rider on June 1, 2017 and recorded a related regulatory liability of $21 million as of December 31, 2017. ComEd also recorded a regulatory liability of $41 million for alternative compliance payments received from RES to purchase RECs on behalf of the RES in the future.
As of December 31, 2017, ComEd had received $62 million of over-recovered RPS costs and alternative compliance payments from RES, which are deposited into a separate interest-bearing bank account pursuant to FEJA. The current portion is classified as Restricted cash and the non-current portion is classified as other deferred debits on Exelon's and ComEd's Balance Sheets.
Customer Rate Increase Limitations
FEJA includes provisions intended to limit the average impact on ComEd customer rates for recovery of costs incurred under FEJA as follows: (1)year provides for a typical ComEd residential customer,weighted average debt and equity return on the average impact must be less than $0.25 cents per month, (2) for nonresidential customers withenergy efficiency regulatory asset and rate base of 5.52% inclusive of an allowed ROE of 6.99%, which includes a peak demand less than 10 MW,downward performance adjustment that decreased the average annual impact must be less than 1.3%ROE. The performance adjustment can either increase or decrease the ROE based upon the achievement of the average amount paid per kWh for electric service by Illinois commercial retail customers during 2015, and (3) for nonresidential customers with a peak demand greater than 10 MW, the average annual impact must be less than 1.3% of the average amount paid per kWh for electric service by Illinois industrial retail customers during 2015.
On June 30, 2017, ComEd submitted a 10-year projection to the ICC of customer rate impacts for residential customers and nonresidential customers with a peak demand less than 10 MW. Such projections indicate that customer rate impacts will not exceed the limitations set by FEJA discussed below. Thereafter, beginning in 2018, ComEd must submit a report to the ICC for residential customers and nonresidential customers with a peak demand less than 10 MW by February 15th and June 30th of each year, respectively. For nonresidential customers with a peak demand greater than 10 MW, ComEd must submit a report to the ICC by May 1 of each year if a rate reduction will be necessary in the following year. For residential customers, the reports will include the actual costs incurred under FEJA during the preceding year and a rolling 10-year customer rate impact projection. The reports for nonresidential customers with a peak demand less than 10 MW will also include the actual costs incurred under FEJA during the preceding year, as well as the average annual rate increase from January 1, 2017 through the end of the preceding year and the average annual rate increase projected for the remainder of the 10-year period.
If the projected residential customer or nonresidential customer with a peak demand less than 10 MW rate increase exceeds the limitations during the first four years, ComEd is required to decrease costs associated with FEJA investments, including reductions to ZEC contract quantities. If the projected residential customer or nonresidential customer with a peak demand less than 10 MW rate increase exceeds the limitations during the last six years, ComEd is required to demonstrate how it will reduce FEJA investments to ensure compliance. If the actual residential customer or nonresidential customer with a peak demand less than 10 MW rate increase exceeds the limitations for any one year, ComEd is required to submit a corrective action plan to decrease future year costs to reduce customer rates to ensure future compliance. If the actual residential customer or nonresidential customer rate exceeds the limitations for two consecutive years, ComEd can offer to credit customers for amounts billed in excess of the limitations or ComEd can terminate FEJA investments. If ComEd chooses to terminate FEJA investments, the ICC shall order termination of ZEC contracts and further initiate proceedings to reduce energy efficiency savings goals and terminate supportgoals. See table below for low-income rooftop and community solar programs. ComEd is allowed to fully recover all costs incurred as of and up to the date of the programs’ termination.
Renewable Energy Resources (Exelon and ComEd). In accordance with FEJA, beginning with the plan or plans to be implemented in the 2017 delivery year, the IPA filed its long term renewable

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

resource procurement plan (LT Plan) with the ICC on December 4, 2017.  The LT Plan requires a certain percentage of electricity sales be met with a climbing percentage of REC procurement. The 2017 delivery year requirement was 13%, with the obligation increasing by at least 1.5% each year thereafter to at least 25% by the 2025 delivery year; and continuing at no less than 25% for each delivery year thereafter.
Each RES and each Illinois utility, which includes ComEd, is responsible for the renewable resource obligation for the customers to which it supplies power. Over time, this will change and ComEd will procure renewable resources based on the retail load of substantially all customers in its service territory. For the delivery year beginning June 1, 2017, the LT Plan shall include cost effective renewable energy resources procured by ComEd for the retail load it supplies and for 50% of the retail customer load supplied by RES in ComEd's service territory on February 28, 2017.  ComEd's procurement for RES supplied retail customer load will increase to 75% June 1, 2018 and to 100% beginning June 1, 2019. All goals are subject to rate impact criteria set forth by Illinois legislation. As of December 31, 2017, ComEd had purchased renewable energy resources or equivalents, such as RECs, in accordance with the IPA Plan. ComEd currently retires all RECs upon transfer and acceptance. ComEd is permitted to recover procurement costs of RECs from retail customers without mark-up through rates.
Pennsylvania Regulatory Matters
Tax Cuts and Jobs Act (Exelon and PECO). PECO is working with the PAPUC and stakeholders on behalf of its distribution customers to determine the proper regulatory mechanisms and timing to reflect the tax benefits from the TCJA.
2015 Pennsylvania Electric Distribution Rate Case (Exelon and PECO). On March 27, 2015, PECO filed a petition with the PAPUC requesting an increase of $190 million to its annual service revenues for electric delivery, which requested an ROE of 10.95%. On September 10, 2015, PECO and interested parties filed with the PAPUC a petition for joint settlement for an increase of $127 million in annual distribution service revenue. No overall ROE was specified in the settlement.  On December 17, 2015, the PAPUC approved the settlement of PECO’s electric distribution rate case, which included the approval of the In-Program Arrearage Forgiveness ("IPAF") Program. The approved electric delivery rates became effective on January 1, 2016.
The IPAF Program provides for forgiveness of a portion of the eligible arrearage balance of its low-income Customer Assistance Program (CAP) accounts receivable at program inception. The forgiveness will be granted to the extent CAP customers remain current over the duration of the five-year payment agreement term.  The Settlement guarantees PECO’s recovery of two-thirds of the arrearage balance through a combination of customer payments and rate recovery, including through future rates cases if necessary.  The remaining one-third of the arrearage balance has been absorbed by PECO through bad debt expense on its Consolidated Statements of Operations. In October 2016, the IPAF was fully implemented. PECO recorded a regulatory asset representing previously incurred bad debt expenseassets associated with the eligible accounts receivable balances, which is included in the Regulatory assets table below.its energy efficiency formula rate.
Maryland Regulatory Matters
Tax Cuts and Jobs ActMaryland Revenue Decoupling (Exelon, BGE, PHI, Pepco, and DPL). In 1998, the MDPSC approved natural gas monthly rate adjustments for BGE and in 2007, the MDPSC approved electric monthly rate adjustments for BGE and BSAs for Pepco and DPL, all of which are decoupling mechanisms. As a result of the decoupling mechanisms, certain Operating revenues from electric and natural gas distribution at BGE and Operating revenues from electric distribution at Pepco Maryland (see also District of Columbia Revenue Decoupling below for Pepco District of Columbia) and DPL are not impacted by abnormal weather or usage per customer. For BGE, Pepco, and DPL, the decoupling mechanism eliminates the impacts of abnormal weather or customer usage by recognizing revenues based on an authorized distribution amount per customer by customer class. Operating revenues from electric and natural gas distribution at BGE and Operating revenues from electric distribution at Pepco Maryland and DPL are, however, impacted by changes in the number of customers.
Maryland Order Directing the Distribution of Energy Assistance Funds (Exelon, BGE, PHI, Pepco, and DPL).On January 12, 2018,June 15, 2021, the MDPSC issued an order that directed eachauthorizing the disbursal of funds to utilities in accordance with Maryland COVID-19 relief legislation. Under this order, BGE, Pepco, and DPL to track the impactsreceived funds of the TCJA beginning January 1, 2018 and file by February 15, 2018 how and when they expect to pass through such impacts to their customers.$50 million,
On January 31, 2018, the MDPSC approved BGE’s petition to pass back to customers beginning February 1, 2018 $103 million in tax savings resulting from the enactment
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Table of the TCJA through a reduction in distribution rates, of which $72 million and $31 million were related to electric and natural gas, respectively.  On February 5, 2018, Pepco filed with the MDPSC an update to its current distribution rate

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Combined Notes to Consolidated Financial Statements - (Continued)
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Note 3 — Regulatory Matters
case to reflect $31 million in TCJA tax savings. By mid-February 2018, DPL is planning to file with the MDPSC seeking approval to pass back to customers beginning in 2018 $13 million in TCJA tax savings through a reduction in electric distribution rates. The amounts being passed back or proposed to be passed back to customers reflect the annual benefit of lower income tax rates and the settlement of a portion of deferred income tax regulatory liabilities established upon enactment of the TCJA.  Refer to Note 14 — Income Taxes for more detail on Corporate Tax Reform.
After the filings due by February 15, 2018, it is expected that the MDPSC will address the treatment of the TCJA tax savings tracked by BGE, Pepco and DPL for the period January 1, 2018 through the effective date of their respective $103 million, $31$12 million, and $13 million customer rate adjustments described above.
2018 Maryland Electric Distribution Rates (Exelon, PHI and Pepco). On January 2, 2018, Pepco filed an application with the MDPSC to increase its annual electric distribution base rates by $41 million, reflecting a requested ROE of 10.1%.  On February 5, 2018, Pepco filed with the MDPSC an update to its current distribution rate case to reflect $31 million in TCJA tax savings, thereby reducing the requested annual base rate increase to $11 million. Pepco expects a decision in the matter in the third quarter of 2018, but cannot predict how much of the requested increase the MDPSC will approve.
2017 Maryland Electric Distribution Rates (Exelon, PHI and Pepco). On March 24, 2017, Pepco filed an application with the MDPSC to increase its annual electric distribution base rates by $69 million, which was updated to $67 million on August 24, 2017, reflecting a requested ROE of 10.1%.  The application included a request for an income tax adjustment to reflect full normalization of removal costs associated with pre-1981 property, which accounted for $18 million of the requested increase. On October 20, 2017, the MDPSC approved an increase in Pepco electric distribution rates of $34 million, reflecting a ROE of 9.5%. On October 27, 2017, the MDPSC issued an errata order revising the approved increase in Pepco electric distribution rates to $32 million. The errata order corrected a number of computational errors in the original order but did not alter any of the findings.  The new rates became effective for services rendered on or after October 20, 2017.  In its decision, the MDPSC denied Pepco’s request regarding the income tax adjustment without prejudice to Pepco filing another similar proposal with additional information.  On November 20, 2017, an interested party in the proceeding filed a request for rehearing.  On December 4, 2017, Pepco filed its response in opposition to the request for rehearing.  Pepco cannot predict the outcome of this matter or when it will be decided.
2016 Maryland Electric Distribution Base Rates (Exelon, PHI and Pepco). On November 15, 2016, the MDPSC approved an increase in electric distribution base rates of $53 million based on a ROE of 9.55%. The new rates became effective for services rendered on or after November 15, 2016. MDPSC also approved Pepco's recovery of substantially all of its capital investment and regulatory assets associated with its AMI program as part of the newly effective rates as well as a recovery over a five-year period of transition costs related to a new billing system implemented in 2015. As a result, during the fourth quarter of 2016, Exelon, PHI and Pepco established a regulatory asset of $13 million, wrote-off $3 million in disallowed AMI costs and recorded a pre-tax credit to net income for $10 million. Additionally, the MDPSC denied Pepco's request to extend its Grid Resiliency Program surcharge for new system reliability and safety improvement projects, with costs for such programs to be recovered going forward through base rates.
2017 Maryland Electric Distribution Rates (Exelon, PHI and DPL). On July 14, 2017, DPL filed an application with the MDPSC to increase its annual electric distribution base rates by $27 million, which was updated to $19 million on November 16, 2017, reflecting a requested ROE of 10.1%.  On December 18, 2017, a settlement agreement was filed with the MDPSC wherein DPL will be granted a rate increase of $13 million, and a ROE of 9.5% solely for purposes of calculating AFUDC and regulatory asset carrying costs.  On January 5, 2018, the MDPSC held a hearing on the settlement agreement. 

Combined Notes to Consolidated Financial Statements - (Continued)
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DPL expects a decision in the matter in the first quarter of 2018, but cannot predict whether the MDPSC will approve the settlement agreement as filed or how much of the requested increase will be approved.
2016 Maryland Electric Distribution Base Rates (Exelon, PHI and DPL). On February 15, 2017, the MDPSC approved an increase in DPL electric distribution rates of $38 million reflecting a ROE of 9.6%.  The new rates became effective for services rendered on or after February 15, 2017.  The MDPSC also denied DPL’s request to continue its Grid Resiliency Program, through which DPL proposed to invest $5 million a year for two years to improve priority feeders and install single-phase reclosing fuse technology. The final order did not result in the recognition of any incremental regulatory assets or liabilities.
2015 Maryland Electric and Natural Gas Distribution Base Rates (Exelon and BGE). On November 6, 2015, and as amended through the course of the proceeding, BGE filed for electric and natural gas distribution base rate increases with the MDPSC, ultimately requesting annual increases of $116 million and $78$8 million, respectively, of which $104 million and $37 million were relatedin July 2021. The funds have been used to recovery of electric and natural gas smart grid initiative costs, respectively. BGE also proposed to recover an annual increase of approximately $30 million for Baltimore City underground conduit fees through a surcharge.
On June 3, 2016, the MDPSC issued an order in which the MDPSC found compelling evidence to conclude that BGE's smart grid initiative overall was cost beneficial to customers. However, the June 3 order contained several cost disallowances and adjustments, including not allowing BGE to deferreduce or recover through a surcharge the $30 million increase in annual Baltimore City underground conduit fees. On June 30, 2016, BGE filed a petition for rehearing of the June 3 order requesting that the MDPSC modify its order to reverseeliminate certain decisions including the decision associated with the Baltimore City underground conduit fees. OPC also subsequently filed for a petition for rehearing of the June 3 order.
On July 29, 2016, the MDPSC issued an order on the petitions for rehearing that reversed certain of its prior cost disallowances and adjustments related to the smart grid initiative. Through the combination of the orders, the MDPSC authorized electric and natural gas rate increases of $44 million and $48 million, respectively, and an allowed ROE for the electric and natural gas distribution businesses of 9.75% and 9.65%, respectively. The new electric and natural gas base rates took effect for service rendered on or after June 4, 2016. However, MDPSC's July 29 order on the petition on rehearing still did not allow BGE to defer or recover through a surcharge the increase in Baltimore City underground conduit fees.
On August 26, 2016, BGE filed an appeal of the MDPSC's orders with the Circuit Court for Baltimore County. On August 29, 2016, thequalifying past-due residential consumer advocate also filed an appeal of the MDPSC's order but with the Circuit Court for Baltimore City. On November 15, 2016, Baltimore County Circuit Court issued an order deciding that the cases should be consolidated and should proceed in Baltimore County Circuit Court. However, on January 9, 2017, BGE filed to withdraw its appeal of the MDPSC's orders and on January 10, 2017, the residential consumer advocate filed to withdraw its appeal as well. Refer to the Smart Meter and Smart Grid Investments disclosure below for further details on the impact of the ultimate disallowances contained in the orders to BGE. See Conduit Lease with City of Baltimore in Litigation and Regulatory Matters of Note 23 - Commitments and Contingencies for information about the settlement agreement related to BGE's use of the City-owned underground conduit system.
Cash Working Capital Order (Exelon and BGE). On November 17, 2016, the MDPSC rendered a decision in the proceeding to review BGE’s request to recover its cash working capital (CWC) requirement for its Provider of Last Resort service, also known as Standard Offer Service (SOS), as well as other components that make up the Administrative Charge, the mechanism that enables BGE to recover all of its SOS-related costs.  The Administrative Charge is now comprised of five components:  CWC, uncollectibles, incremental costs, return, and an administrative adjustment, which is an adder to the utility’s SOS rate to act as a proxy for retail suppliers’ costs.  The Commission accepted BGE's

Combined Notes to Consolidated Financial Statements - (Continued)
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positions on recovery of CWC and pass-through recovery of BGE’s actual uncollectibles and incremental costs.  The order also grants BGE a return on the SOS.  The Commission ruled that the level of the administrative adjustment will be determined in BGE’s next rate case. On December 16, 2016, MDPSC Staff requested clarification concerning the amount of return on the SOS awarded to BGE and on December 19, 2016, the residential consumer advocate sought rehearing of the return awarded. On January 24, 2017, the MDPSC issued an order denying the MDPSC Staff request for clarification and the residential consumer advocate request for rehearing. On February 22, 2017, the residential consumer advocate filed an appeal of the MDPSC's orders with the Circuit Court for Baltimore City. The residential consumer advocate filed its Memorandum on Appeal on June 5, 2017 and subsequent Reply Memoranda were filed by BGE and the MDPSC on July 7, 2017 and July 12, 2017, respectively. On August 7, 2017, following oral argument by the parties, a decision was issued from the Circuit Court affirming the decision of the MDPSC. On September 5, 2017, the residential consumer advocate filed an appeal of the Circuit Court's decision to the Maryland Court of Special Appeals. BGE cannot predict the outcome of this appeal.
Smart Meter and Smart Grid Investments (Exelon and BGE). In August 2010, the MDPSC approved a comprehensive smart grid initiative for BGE that included the planned installation of 2 million residential and commercial electric and natural gas smart meters at an expected total cost of $480 million of which $200 million was funded by SGIG. The MDPSC’s approval ordered BGE to defer the associated incremental costs, depreciation and amortization, and an appropriate return, in a regulatory asset until such time as a cost-effective advanced metering system is implemented. Refer to AMI programs in the Regulatory Assets and Liabilities section below for further details.
As part of the 2015 electric and natural gas distribution rate case filed on November 6, 2015, BGE sought recovery of its smart grid initiative costs, supported by evidence demonstrating that BGE had, in fact, implemented a cost-beneficial advanced metering system. On June 3, 2016, the MDPSC issued an order concluding that the smart grid initiative overall is cost beneficial to its customers. However, the June 3 order contained several cost disallowances and adjustments including disallowances of certain program and meter installation costs and denial of recovery of any return on unrecovered costs for non-AMI meters replaced under the program. On June 30, 2016, BGE filed a petition for rehearing of the June 3 order requesting that the MDPSC modify its order to reverse certain decisions and change certain of the cost disallowances and adjustments to enable BGE to defer those costs for recovery through future electric and natural gas rates.  The residential consumer advocate also subsequently filed for a petition for rehearing of the June 3 order. On July 29, 2016, the MDPSC issued an order on the petitions for rehearing that reversed certain of its prior cost disallowances and adjustments related to the smart grid initiative.
As a combined result of the MDPSC orders in BGE's 2015 electric and natural gas distribution rate case, BGE recorded a $52 million charge in June 2016 to Operating and maintenance expense in Exelon’s and BGE’s Consolidated Statements of Operations and Comprehensive Income reducing certain regulatory assets and other long-lived assets and reclassified $56 million of non-AMI plant costs from Property, plant and equipment, net to Regulatory assets on Exelon's and BGE's Consolidated Balance Sheets.
The Maryland Strategic Infrastructure Development and Enhancement Program (Exelon and BGE). In 2013, legislation intended to accelerate gas infrastructure replacements in Maryland was signed into law. The law established a mechanism, separate from base rate proceedings, for gas companies to promptly recover reasonable and prudent costs of eligible infrastructure replacement projects incurred after June 1, 2013. The monthly surcharge and infrastructure replacement costs must be approved by the MDPSC and are subject to a cap and require an annual true-up of the surcharge revenues against actual expenditures. Investment levels in excess of the cap would be recoverable in a subsequent gas base rate proceeding at which time all costs for the infrastructure replacement projects would be rolled

Combined Notes to Consolidated Financial Statements - (Continued)
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into gas distribution rates. Irrespective of the cap, BGE is required to file a gas rate case every five years under this legislation.
On August 2, 2013, BGE filed its infrastructure replacement plan and associated surcharge. On January 29, 2014, the MDPSC issued a decision conditionally approving the first five years of BGE’s plan and surcharge. On July 1, 2016, BGE filed an amendment to its infrastructure replacement plan, which the MDPSC conditionally approved in an order dated November 23, 2016. The revised surcharge reflecting the costs of the amendment became effective January 1, 2017. On November 1, 2017, BGE filed a surcharge update to be effective January 1, 2018 along with its 2018 project list and projected capital estimates of $136 million to be included in the 2018 surcharge calculation. The MDPSC subsequently approved BGE's 2018 project list and the proposed surcharge for 2018. As of December 31, 2017, BGE recorded a regulatory liability of less than $1 million, representing the difference between the surcharge revenues and program costs.
On December 1, 2017 (and as amended on January 22, 2018), BGE filed an application with the MDPSC seeking approval for a new infrastructure replacement plan and associated surcharge, effective for the five-year period from 2019 through 2023. BGE's new plan calls for capital expenditures over the 2019-2023 timeframe of $963 million, with an associated revenue requirement of $242 million. BGE expects a decision in the matter by May 31, 2018, but cannot predict whether the MDPSC will approve the plan as filed.
Delaware Regulatory Matters
Tax Cuts and Jobs Act (Exelon, PHI and DPL). On January 16, 2018, the DPSC opened a docket to examine the impacts of the TCJA on the cost of service and rates of all regulated public utilities in Delaware, which includes DPL.  The DPSC also stated the TCJA benefits would be addressed in DPL's pending rate case.
In response, by mid-February 2018, DPL is planning to file with the DPSC updates to its electric and gas distribution rate cases described below to reflect approximately $26 million in tax savings resulting from the enactment of the TCJA, of which $19 million and $7 million are related to electric and natural gas, respectively. The updated requests for amounts being passed back to customers would reflect the annual benefit of lower income tax rates and the settlement of a portion of deferred income tax regulatory liabilities established upon enactment of the TCJA. Refer to Note 14 - Income Taxes for more detail on Corporate Tax Reform. DPL expects a decision in the matter in the third quarter of 2018 for the electric distribution proceeding and in the fourth quarter of 2018 for the gas distribution proceeding, but cannot predict how much of the requested increase the DPSC will approve. It is expected that the DPSC will address in a future rate proceeding DPL's treatment of the TCJA tax savings for the period February 1, 2018 through the effective date of any customer rate adjustments in the pending rate proceedings.receivables.
2017 Delaware Electric and Natural Gas Distribution Rates (Exelon, PHI and DPL). On August 17, 2017, DPL filed applications with the DPSC to increase its annual electric and natural gas distribution base rates by $24 million and $13 million respectively, reflecting a requested ROE of 10.1%. DPL filed updated testimony on October 18, 2017, to request a $31 million increase in electric distribution rates, and updated testimony on November 7, 2017, to request an $11 million increase in natural gas distribution rates. While the DPSC is not required to issue a decision on the applications within a specified period of time, Delaware law allows DPL to put into effect $2.5 million of the rate increases for both electric and natural gas two months after filing the application and the entire requested rate increases seven months after filing, subject to a cap and a refund obligation based on the final DPSC order.  On October 24, 2017, the Staff of the DPSC and the Public Advocate filed a joint motion to dismiss DPL's electric distribution base rate application without prejudice to refiling, arguing that the amount of the requested increase to $31 million required additional time to review and additional public notice.  In November 2017, the DPSC denied the joint motion to dismiss.

Combined Notes to Consolidated Financial Statements - (Continued)
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2016 Delaware Electric and Natural Gas Distribution Base Rates (Exelon, PHI and DPL). On May 17, 2016, DPL filed applications with the DPSC to increase its annual electric and natural gas distribution base rates by $63 million, which was updated to $60 million on March 8, 2017, and $22 million, respectively, reflecting a requested ROE of 10.6%. Delaware law allowed DPL to put into effect $2.5 million of each of the rate increases effective July 16, 2016. On December 17, 2016, the DPSC approved that an additional $30 million in electric distribution rates and an additional $10 million in gas distribution rates effective December 17, 2016, subject to refund based on the final DPSC orders.
On March 8, 2017, DPL entered into a settlement agreement with the Division of the Public Advocate, Delaware Electric Users Group and the DPSC Staff in its electric distribution rate proceeding, which provides for an increase in DPL annual electric distribution base rates of $31.5 million reflecting a ROE of 9.7% compared to the $32 million increase previously put into effect.  On May 23, 2017, the DPSC issued an order approving the settlement agreement, with the new rates effective June 1, 2017. Pursuant to the settlement agreement, no refund of the interim rates put into effect on July 16, 2016 and December 17, 2016 (as discussed above) is required.
On April 6, 2017, DPL entered into a settlement agreement with the Division of the Public Advocate and the DPSC Staff in its natural gas distribution rate proceeding, which provides for an increase in DPL annual natural gas distribution base rates of $4.9 million reflecting a ROE of 9.7%. The settlement agreement also provides that DPL will refund amounts collected under the temporary rates effective July 16, 2016 and December 17, 2016 (as discussed above) in excess of the $4.9 million, and that the new rates will be effective within thirty days of DPSC approval of the settlement agreement. On June 6, 2017, the DPSC issued an order approving the settlement agreement, with the new rates effective July 1, 2017. Pursuant to the settlement agreement, a rate refund plus interest of approximately $5 million was issued to customers beginning in August 2017. This was a one-time refund and was included on customer bills from mid-August through mid-September.
District of Columbia Regulatory Matters
Tax Cuts and Jobs Act (Exelon, PHI and Pepco).  On January 23, 2018, the DCPSC opened a rate proceeding directing Pepco to track the impacts of the TCJA beginning January 1, 2018 and file its plan to reduce the current revenue requirement by customer class by February 12, 2018. The DCPSC stated it will address the impact of the TCJA on future rates within Pepco's pending electric distribution rate case discussed below and Pepco will accordingly update its current distribution rate case in February 2018.
Separately, on February 6, 2018, Pepco filed with the DCPSC seeking approval to pass back to customers beginning in 2018 $39 million in tax savings resulting from the enactment of the TCJA through a reduction in electric distribution rates. The amounts being passed back to customers would reflect the annual benefit of lower income tax rates and the settlement of a portion of deferred income tax regulatory liabilities established upon enactment of the TCJA. It is expected that the DCPSC will address in a future rate proceeding Pepco's treatment of the TCJA tax savings for the period January 1, 2018 through the effective date of any customer rate adjustments. Refer to Note 14 - Income Taxes for more detail on Corporate Tax Reform.
2017 District of Columbia Electric Distribution Base RatesRevenue Decoupling (Exelon, PHI, and Pepco). In 2009, the DCPSC approved a BSA, which is a decoupling mechanism. As a result of the decoupling mechanism, Operating revenues from electric distribution at Pepco District of Columbia (see also Maryland Revenue Decoupling above for Pepco Maryland) are not impacted by abnormal weather or usage per customer. The decoupling mechanism eliminates the impacts of abnormal weather or customer usage by recognizing revenues based on an authorized distribution amount per customer by customer class. Operating revenues from electric distribution at Pepco District of Columbia are, however, impacted by changes in the number of customers.
New Jersey Regulatory Matters
Conservation Incentive Program (CIP) (Exelon, PHI, and ACE).On December 19, 2017, PepcoSeptember 25, 2020, ACE filed an application with the DCPSCNJBPU as was required seeking approval to increase its annual electricimplement a portfolio of energy efficiency programs pursuant to New Jersey’s clean energy legislation. The filing included a request to implement a CIP that would eliminate the favorable and unfavorable impacts of weather and customer usage patterns on distribution revenues for most customers. The CIP compares current distribution revenues by customer class to approved target revenues established in ACE’s most recent distribution base rate case. The CIP is calculated annually and recovery is subject to certain conditions, including an earnings test and ceilings on customer rate increases.
On April 27, 2021, the NJBPU approved the settlement filed by ACE and the third parties to the proceeding. The approved settlement addresses all material aspects of ACE’s filing, including ACE’s ability to implement the CIP prospectively effective July 1, 2021. As a result of this decoupling mechanism, operating revenues will no longer be impacted by abnormal weather or usage for most customers. Starting in third quarter of 2021, ACE will record alternative revenue program revenues for its best estimate of the distribution revenue impacts resulting from future changes in CIP rates that it believes are probable of approval by the NJBPU in accordance with this mechanism.
Termination of Energy Procurement Provisions of PPAs (Exelon, PHI, and ACE). On December 22, 2021, ACE filed with the NJBPU a petition to terminate the provisions in the PPAs to purchase electricity from two coal-powered generation facilities located in the state of New Jersey. The petition was approved by the NJBPU on March 23, 2022. Upon closing of the transaction on March 31, 2022, ACE recognized a liability of $203 million for the contract termination fee, which is to be paid by the end of 2024, and recognized a corresponding regulatory asset of$203 million.
As of December 31, 2022, the $137 million liability for the contract termination fee consists of $87 million and $50 million included in Other current liabilities and Other deferred credits and other liabilities, respectively, in Exelon's Consolidated Balance Sheet. The current and noncurrent liabilities are included in PPA termination obligation and Other deferred credits and other liabilities, respectively, in PHI's and ACE's Consolidated Balance Sheets. For the year ended December 31, 2022, ACE has paid $66 million reflecting a requested ROE of 10.1%.  By mid-February, Pepco will update its current distribution rate case to reflect the TCJA impacts from January 1, 2018 through the effective date of the $39liability, which is recorded in Changes in Other assets and liabilities in Exelon's, PHI's, and ACE's Consolidated Statements of Cash Flows.
ACE Infrastructure Investment Program Filings (Exelon, PHI, and ACE). On February 28, 2018, ACE filed with the NJBPU the company’s IIP proposing to seek recovery of a series of investments through a new rider mechanism, totaling $338 million, customer rate adjustment described above. Pepco expectsbetween 2019-2022 to provide safe and reliable service for its customers. The IIP will allow for more timely recovery of investments made to modernize and enhance ACE’s electric system. On April 15, 2019, ACE entered into a decisionsettlement agreement with other parties, which allows for a recovery totaling $96 million of reliability related capital investments from July 1, 2019 through June 30, 2023. On April 18, 2019, the NJBPU approved the settlement agreement.
On October 31, 2022, ACE filed with the NJBPU the company’s second IIP, proposing to seek recovery through a new component of ACE’s rider mechanism, totaling $379 million, over the four-year period of July 1, 2023 to June 30, 2027. The new IIP will allow ACE to invest in projects that are designed to enhance the matter in the fourth quarter of 2018, but cannot predict how muchreliability, resiliency, and safety of the service ACE provides to its customers. ACE has requested increasethat the DCPSC will approve.NJBPU render a

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Combined Notes to Consolidated Financial Statements - (Continued)
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Note 3 — Regulatory Matters
2016 District of Columbia Electric Distribution Base Rates (Exelon, PHI and Pepco). On June 30, 2016, Pepco filed an application with the DCPSC to increase its annual electric distribution base rates by $86 million, which was updated to $77 million on February 1, 2017, reflecting a requested ROE of 10.6%.
On July 25, 2017, the DCPSC approved an increasedecision in Pepco electric distribution base rates of $37 million reflecting a ROE of 9.5%. The new rates became effective for services rendered on or after August 15, 2017.  In its decision, the DCPSC ordered that the $26 million customer rate credit created as a result of the Exelon and PHI merger will be provided primarily to residential customers and some small commercial customers to offset the impact of this increase until that amount has been exhausted, which is expected to take approximately two years. Additionally, the Commission is holding approximately $6 million to $7 million of the customer rate credit for use toward a possible new class of customers for certain senior citizens and disabled persons.  The DCPSC also held that Pepco's bill stabilization adjustment, which decouples distribution revenues from utility customers from the amount of electricity delivered, will continue to be in place and that no refund of previously collected funds is required.  Several parties filed requests that the DCPSC reconsider the order on various issues, and on October 6, 2017, the Commission issued an order denying each of the requests.
District of Columbia Power Line Undergrounding Initiative (Exelon, PHI and Pepco). The District of Columbia government enacted on an emergency basis (effective May 17, 2017) and thereafter on a permanent basis (effective July 11, 2017) legislation to amend the Electric Company Infrastructure Improvement Financing Act of 2014 (as amended) (the Infrastructure Improvement Financing Act) to authorize the District of Columbia Power Line Undergrounding (DC PLUG) initiative, a projected six year, $500 million project to place underground some of the District of Columbia’s most outage-prone power lines with $250 million of the project costs funded by Pepco and $250 million funded by the District of Columbia.
The $250 million of project costs funded by Pepco will be recovered through a volumetric surcharge on the electric bill of substantially all of Pepco's customers in the District of Columbia. Pepco will earn a return on these project costs.
The $250 million of project costs funded by the District of Columbia will come from two sources. Project costs of $187.5 million will be funded through a charge assessed on Pepco by the District of Columbia; Pepco will recover this charge from customers through a volumetric distribution rider. The remaining costs up to $62.5 million are to be funded by the existing capital projects program of the District Department of Transportation (DDOT). Ownership and responsibility for the operation and maintenance of all the assets funded by the District of Columbia will be transferred to Pepco for a nominal amount upon completion. Pepco will not recover or earn a return on the cost of the assets transferred to it by the District of Columbia.
In accordance with the Infrastructure Improvement Financing Act, Pepco filed an application for approval ofmatter during the first two-year plan inhalf of 2023 but cannot predict if the DC PLUG initiative (the First Biennial Plan) on July 3, 2017. After the initial application, PepcoNJBPU will be required to make two additional applications. On November 9, 2017, the DCPSC issued an order approving the First Biennial Plan andapprove the application for a financing order. Pursuant to that order, Pepco is obligated to pay $187.5 million to the District of Columbia over the six-year project term, of which it expects to pay $27.5 million in 2018. Pepco recorded an obligation and offsetting regulatory asset in November. On December 11, 2017, an interested party filed for reconsideration of the DCPSC's November 9 order and on January 18, 2018, the DCPSC denied the interested party’s request. Rates for the DC PLUG initiative went into effect on February 7, 2018.as filed.
New Jersey Regulatory Matters
Tax Cuts and Jobs Act (Exelon, PHI and ACE).  On January 31, 2018, the NJBPU issued an order mandating that New Jersey utility companies, including ACE, pass any economic benefit from the

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

TCJA to rate payers.  The order directed New Jersey utility companies to file by March 2, 2018 proposed tariff sheets reflecting TCJA benefits, with new rates to be implemented effective April 1, 2018.  In addition, the NJBPU directed New Jersey utility companies to file by March 2, 2018 a Petition with the NJBPU outlining how they propose to refund any over-collection associated with revised rates not being in place from January 1, 2018 through March 31, 2018, with interest.
ACE estimates that approximately $23 million in TCJA savings will be passed back to ACE customers, reflecting the annual benefit of lower income tax rates and the settlement of a portion of deferred income tax regulatory liabilities established upon enactment of the TCJA.  Refer to Note 14 - Income Taxes for more detail on Corporate Tax Reform.
New Jersey Consolidated Tax AdjustmentAdvanced Metering Infrastructure Filing (Exelon, PHI, and ACE).The Consolidated Tax Adjustment (CTA) is a New Jersey ratemaking policy that requires utilities that are part of a consolidated tax group to share with customers the tax benefits that came from losses at unregulated affiliates through a reduction in rate base. In 2013, the NJBPU opened a generic proceeding to review the policy. In 2014, the NJBPU issued a decision which retained the CTA, but in a highly modified format that significantly reduced the impact of the CTA to ACE. On September 18, 2017, the Appellate Division of the Superior Court of New Jersey reversed the NJBPU’s decision in adopting the revised CTA policy and held that NJBPU’s actions related to the CTA constituted a rulemaking that should have been undertaken pursuant to the requirements of the Administrative Procedures Act. The Court did not address the merits of the CTA methodology itself. No party filed an appeal of the Court’s decision, and the NJBPU has issued a proposed rule for comment, consistent with the requirements of the Administrative Procedures Act. The substance of the proposed rule is consistent with the NJBPU’s decision in the generic proceeding. If the NJBPU were to apply the CTA in its unmodified form, it could have a material prospective impact to ACE through a reduction in rate base in future rate cases.
2017 New Jersey Electric Distribution Rates (Exelon, PHI and ACE). On March 30, 2017,August 26, 2020, ACE filed an application with the NJBPU as was required seeking approval to increase its annual electricdeploy a smart energy network in alignment with New Jersey’s Energy Master Plan and Clean Energy Act. The proposal consisted of estimated costs totaling $220 million with deployment taking place over a 3-year implementation period from approximately 2021 to 2024 that involves the installation of an integrated system of smart meters for all customers accompanied by the requisite communications facilities and data management systems.
On July 14, 2021, the NJBPU approved the settlement filed by ACE and the third parties to the proceeding. The approved settlement addresses all material aspects of ACE's smart energy network deployment plan, including cost recovery of the investment costs, incremental O&M expenses, and the unrecovered balance of existing infrastructure through future distribution rates by $70 million (before rates.
New Jersey sales and use tax), which was updated to $73 million on July 14, 2017, reflecting a requested ROE of 10.1%. The application also requests approval of a rate surcharge mechanism called the “System Renewal Recovery Charge,” which would permit more timely recovery of certain costs associated with reliability and system renewal-related capital investments. 
On September 8, 2017, ACE entered into a settlement agreement with the NJBPU staff, the New Jersey Division of Rate Counsel and Wal-Mart Stores, Inc. in its electric distribution rate proceeding, which provides for an increase in ACE annual electric distribution base rates of $43 million (before New Jersey sales and use tax) reflecting a ROE of 9.6%.  In addition, pursuant to the settlement agreement, ACE agreed to withdraw its request for approval of a System Renewal Recovery Charge without prejudice to its right to refile.  On September 22, 2017, the NJBPU issued an order approving the settlement agreement, with the new rates effective on October 1, 2017.
2016 New Jersey Electric Distribution Base RatesClean Energy Legislation (Exelon, PHI, and ACE).On August 24, 2016,May 23, 2018, New Jersey enacted legislation that established and modified New Jersey’s clean energy and energy efficiency programs and solar and RPS. On the same day, New Jersey enacted legislation that established a ZEC program that provides compensation for nuclear plants that demonstrate to the NJBPU issued an order approving a stipulation of settlement among ACE,that they meet certain requirements. Under the legislation, the NJBPU will issue ZECs to the qualifying nuclear power plants and the electric distribution utilities in New Jersey, Division of Rate Counsel, NJBPU Staff and Unimin Corporation, which, among other things, provided that a determination on ACE's grid resiliency program, PowerAhead, would be separated into a phase II of the rate proceeding and decided at a later date. PowerAhead includes capital investments to enhance the resiliency of the system through improvements focused on improving the distribution system's ability to withstand major storm events. A stipulation of settlement with respect to the PowerAhead program (the PowerAhead Stipulation) was approved by the NJBPU on May 31, 2017. As adopted, the PowerAhead program includes an approved investment level of $79 million to be recovered through the cost recovery mechanism described in the PowerAhead Stipulation. The NJBPU order adopting the PowerAhead Stipulation was effective on June 10, 2017.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

2017 Update and Reconciliation of Certain Under-Recovered Balances (Exelon, PHI and ACE). On February 1, 2017,including ACE, submitted its 2017 annual petition with the NJBPU seeking to reconcile and update (i) charges related to the recovery of above-market costs associated with ACE’s long-term power purchase contracts with the non-utility generators and (ii) costs related to surcharges for the New Jersey Societal Benefit Program (a statewide public interest program that is intended to benefit low income customers and address other public policy goals) and ACE’s uncollectible accounts. As filed, the net impact of adjusting the charges as proposed would have been an overall annual rate decrease of approximately $29 million (revised to approximately $32 million in April 2017, based upon an update for actuals through March 2017), including New Jersey sales and use tax. On May 31, 2017, the NJBPU approved a stipulation of settlement entered into by the parties providing for an overall annual rate decrease of approximately $32 million, effective June 1, 2017. The rate decrease was placed into effect provisionally, subject to a review by NJBPU and the Division of Rate Counsel of the final underlying costs for reasonableness and prudence. This rate decrease will have no effect on ACE’s operating income, since these revenues provide for recovery of deferred costs under an approved deferral mechanism. On November 1, 2017, ACE entered into a Stipulation of Final Rates with the NJBPU staff and the New Jersey Division of Rate Counsel which was unchanged from the provisional rates.  On November 21, 2017, the NJBPU issued an order approving the Stipulation of Final Rates as filed.
2016 Update and Reconciliation of Certain Under-Recovered Balances (Exelon, PHI and ACE). On February 1, 2016, ACE submitted its 2016 annual petition with the NJBPU seeking to reconcile and update (i) charges related to the recovery of above-market costs associated with ACE’s long-term power purchase contracts with the non-utility generators and (ii) costs related to surcharges for the New Jersey Societal Benefit Program (a statewide public interest program that is intended to benefit low income customers and address other public policy goals) and ACE’s uncollectible accounts.
As filed, the net impact of adjusting the charges as proposed would have been an overall annual rate increase of $9 million (revised to $19 million in April 2016, based upon an update for actuals through March 2016), including New Jersey sales and use tax.
On November 30, 2016, the NJBPU approved a stipulation of settlement entered into by the parties providing for an overall annual rate increase of $1 million effective January 1, 2017. This settlement included a credit of approximately $10 million to the Non-Utility Generation charge deferral balance and a credit of approximately $7 million to the Uncollectible deferral balance. These credits were directed to be applied to the deferral balances in an NJBPU order dated October 31, 2016. That order approved the Joint Recommendation for Settlement of the Most Favored Nation Provision, which was a condition of the merger between Exelon Corporation and Pepco Holdings, Inc. This rate increase will have no effect on ACE’s operating income, since these revenues provide for recovery of deferred costs under an approved deferral mechanism.
New York Regulatory Matters
New York Clean Energy Standard (Exelon and Generation). On August 1, 2016, the New York Public Service Commission (NYPSC) issued an order establishing the New York CES, a component of which is a Tier 3 ZEC program targeted at preserving the environmental attributes of zero-emissions nuclear-powered generating facilities that meet the criteria demonstrating public necessity as determined by the NYPSC.  The New York State Energy Research and Development Authority (NYSERDA) will centrally procure the ZECs from eligible plants through a 12-year contract, to be administered in six two-year tranches, extending from April 1, 2017 through March 31, 2029. ZEC payments will be made to the eligible resources based upon the number of MWh produced, subject to specified caps and minimum performance requirements.  The price to be paid for the ZECs under each tranche will be administratively determined using a formula based on the social cost of carbon as determined in 2016 by the federal government, subject to pricing adjustments designed to lower the ZEC price based on increases in underlying energy and capacity prices.  The ZEC price for the first tranche has been set at $17.48 per

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

MWh of production. Following the first tranche, the price will be updated bi-annually.  Each Load Serving Entity (LSE) shall be required to purchase an amount of ZECs equivalent to its load ratio sharethose ZECs. ACE began collecting from retail distribution customers, through a non-bypassable charge, all costs associated with the procurement of the total electric energy in the New York Control Area.  Cost recovery from ratepayers shall be incorporated into the commodity charges on customer bills.
The NYPSC initially identified three plants eligible for the ZEC program: the FitzPatrick, Ginna, and Nine Mile Point nuclear facilities. As issued, the order also provided that the duration of the program beyond the first tranche was conditional upon a buyer purchasing the FitzPatrick facility and taking title prior to September 1, 2018. On NovemberZECs effective April 18, 2016, the required contracts with NYSERDA were executed for Ginna and Nine Mile Point, in addition to Entergy’s execution of the required contract for the FitzPatrick facility. On March 31, 2017, Generation closed on the acquisition of FitzPatrick. Generation is currently recognizing revenue for the sale of New York ZECs in the month following generation when the ZECs are transferred to NYSERDA. For the year ended December 31, 2017, Generation has recognized $311 million of ZEC revenue.
Several parties filed with the NYPSC requests for rehearing or reconsideration of the New York CES. Generation and CENG also filed a request for clarification, or in the alternative limited rehearing, that the condition limiting the duration of the program beyond the first tranche be limited to the eligibility of the FitzPatrick plant only and have no bearing on Ginna or Nine Mile Point’s eligibility for the full 12-year duration. On December 15, 2016, the NYPSC approved Exelon’s petition to clarify this condition and denied all petitions for rehearing of the New York CES. Parties had until mid-April 2017 to appeal to New York State court the denials of the requests for rehearing.
On October 19, 2016, a coalition of fossil-generation companies filed a complaint in federal district court against the NYPSC alleging that the ZEC program violates certain provisions of the U.S. Constitution; specifically, that the ZEC program interferes with FERC’s jurisdiction over wholesale rates and that it discriminates against out of state competitors.  On December 9, 2016, Generation and CENG filed a motion to intervene in the case and to dismiss the lawsuit. The State also filed a motion to dismiss. On July 25, 2017, the court granted both motions to dismiss. On August 24, 2017, plaintiffs appealed the decision to the Second Circuit. Plaintiffs-Appellants' initial brief was filed on October 13, 2017. Briefing in the appeal was completed in December 2017, and oral argument is expected to take place in March 2018.
In addition, on November 30, 2016, a group of parties, including certain environmental groups and individuals, filed a Petition in New York State court seeking to invalidate the ZEC program. The Petition, which was amended on January 13, 2017, argued that the NYPSC did not have authority to establish the program and that it violated certain technical provisions of the State Administrative Procedures Act (SAPA) when adopting the ZEC program. On February 15, 2017, Generation and CENG filed a motion to dismiss the state court action. The NYPSC also filed a motion to dismiss the state court action. On March 24, 2017, the plaintiffs filed a memorandum of law opposing the motions to dismiss, and Generation and CENG filed a reply brief on April 28, 2017. Oral argument was held on June 19, 2017. On January 22, 2018, the court denied the motions to dismiss without commenting on the merits of the case. The case will now proceed to summary judgment upon filing of the full record.2019.
Other legal challenges remain possible, the outcomes of which remain uncertain. See Note 8 - Early Nuclear Plant Retirements for additional information relative to Ginna and Nine Mile Point, and Note 4 - Mergers, Acquisitions and Dispositions for additional information on Generation's proposed acquisition of FitzPatrick.
Ginna Nuclear Power Plant Reliability Support Services Agreement (Exelon and Generation). In November 2014, in response to a petition filed by Ginna Nuclear Power Plant (Ginna) regarding the possible retirement of Ginna, the NYPSC directed Ginna and Rochester Gas & Electric Company (RG&E) to negotiate a Reliability Support Services Agreement (RSSA) to support the continued operation of Ginna to maintain the reliability of the RG&E transmission grid for a specified period of time. During 2015

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

and 2016, Ginna and RG&E made filings with the NYPSC and FERC for their approval of the proposed RSSA. Although the RSSA was still subject to regulatory approvals, on April 1, 2015, Ginna began delivering the power and capacity from the Ginna plant into the ISO-NY consistent with the technical provisions of the RSSA.
On March 22, 2016, Ginna submitted a compliance filing with FERC with revisions to the RSSA requested by FERC. On April 8, 2016, FERC accepted the compliance filing and on April 20, 2016, the NYPSC accepted the revised RSSA with a term expiring on March 31, 2017. In April 2016, Generation began recognizing revenue based on the final approved pricing contained in the RSSA and also recognized a one-time revenue adjustment of approximately $101 million representing the net cumulative previously unrecognized amount of revenue retroactive from the April 1, 2015 effective date through March 31, 2016. A 49.99% portion of the one-time adjustment was removed from Generation’s results of operations as a result of the noncontrolling interests in CENG.
The RSSA required Ginna to continue operating through the RSSA term. On September 30, 2016, Ginna filed the required notice with the NYPSC of its intent to continue operating beyond the March 31, 2017 expiry of the RSSA, conditioned upon successful execution of an agreement between Ginna and NYSERDA for the sale of ZECs under the New York CES. As stated previously, on November 18, 2016 the required contract with NYSERDA was executed by Generation and CENG for Ginna. Upon the expiry of the RSSA on March 31, 2017, Ginna was required to make refund payments of $20 million to RG&E related to capital expenditures. Ginna paid RG&E the $20 million in June 2017. Additionally, the provisions of the RSSA provided for a one-time payment of $12 million to be paid from RG&E to Ginna at the end of the contract. This $12 million was recognized in revenue as of March 31, 2017. RG&E paid the $12 million to Ginna in May 2017. Subject to prevailing over any administrative or legal challenges, it is expected the New York CES will allow Ginna to continue to operate through the end of its current operating license in 2029. See Note 8 - Early Nuclear Plant Retirements for further information regarding the impacts of a decision to early retire one or more nuclear plants.
Federal Regulatory Matters
Tax Cuts and Jobs Act (All Registrants). To date, the FERC has not yet issued guidance to utilities on how and when to reflect the impacts of the TCJA in customer rates.  However, pursuant to their respective transmission formula rates, ComEd, BGE, Pepco, DPL and ACE will begin passing back to customers on June 1, 2018, the benefit of lower income tax rates effective January 1, 2018.  ComEd’s, BGE’s, Pepco’s, DPL’s and ACE’s transmission formula rates currently do not provide for the pass back or recovery of income tax-related regulatory liabilities or assets.  As discussed above, on December 13, 2016 (and as amended on March 13, 2017), BGE filed with FERC to begin recovering certain existing and future transmission-related income tax regulatory assets through its transmission formula rate.  On November 16, 2017, FERC issued an order rejecting BGE’s proposed revisions to its transmission formula rate and on December 18, 2017, BGE filed for clarification and rehearing of FERC’s order.  ComEd, Pepco, DPL and ACE also have similar transmission-related income tax regulatory assets and liabilities, for which FERC approval is required, separate from their transmission formula rate mechanisms, to pass back or recover those regulatory liabilities and assets through customer rates. PECO is currently in settlement discussions regarding its transmission formula rate and expects to pass back TCJA benefits to customers through its annual formula rate update.
Refer to Deferred income taxes in the Regulatory Assets and Liabilities section below for the balances of transmission-related income tax regulatory assets as of December 31, 2017 and 2016.
Transmission Formula Rate (Exelon, ComEd, BGE, PHI, Pepco, DPL and ACE). ComEd’s, BGE’s, Pepco's, DPL's and ACE's transmission rates are each established based on a FERC-approved formula. ComEd, BGE, Pepco, DPL and ACE are required to file an annual update to the FERC-approved formula on or before May 15, with the resulting rates effective on June 1 of the same year. The annual formula rate update is based on prior year actual costs and current year projected capital additions. The

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

update also reconciles any differences between the revenue requirement in effect beginning June 1 of the prior year and actual costs incurred for that year. ComEd, BGE, Pepco, DPL, and ACE record regulatory assets or regulatory liabilities and corresponding increases or decreases to operating revenues for any differences between the revenue requirement in effect and ComEd’s, BGE’s, Pepco's, DPL's and ACE's best estimate of the revenue requirement expected to be filed with the FERC for that year’s reconciliation. The regulatory asset associated with transmission true-up is amortized to Operating revenues within their Consolidated Statements of Operations of Comprehensive Income as the associated amounts are recovered through rates.
For each of the following years, the following total increases/(decreases) were included in ComEd’s, BGE’s, Pepco's, DPL's and ACE's electric transmission formula rate filings:
 ComEd BGE
Annual Transmission Filings(a)
2017
2016
2015 2017 2016 2015
Initial revenue requirement
    increase
$44
 $90
 $68
 $31
 $12
 $
Annual reconciliation increase (decrease)(33) 4
 18
 3
 3
 (3)
Dedicated facilities (decrease) increase(b)

 
 
 (8) 13
 13
Total revenue requirement
    increase
$11
 $94
 $86
 $26
 $28
 $10
            
Allowed return on rate base(d)
8.43% 8.47% 8.61% 7.47% 8.09% 8.46%
Allowed ROE(e)
11.50% 11.50% 11.50% 10.50% 10.50% 11.30%
 Pepco DPL ACE
Annual Transmission Filings(a)
2017 2016 2015 2017 2016 2015 2017 2016 2015
Initial revenue requirement increase (decrease)$5
 $2
 $10
 $6
 $8
 $15
 $20
 $8
 $10
Annual reconciliation (decrease) increase15
 (10) (3) 8
 (10) (1) 22
 (14) 2
MAPP abandonment recovery (decrease) increase(c)

 (15) (2) 
 (12) (2) 
 
 
Total revenue requirement
    (decrease) increase
$20
 $(23) $5
 $14
 $(14) $12
 $42
 $(6) $12
                  
Allowed return on rate base(d)
7.92% 7.88% 8.36% 7.16% 7.21% 7.80% 8.02% 7.83% 8.51%
Allowed ROE(e)
10.50% 10.50% 11.30% 10.50% 10.50% 11.30% 10.50% 10.50% 11.30%
__________
(a)The time period for any challenges to the annual transmission formula rate update flings expired with no challenges submitted.
(b)BGE's transmission revenues include a FERC approved dedicated facilities charge to recover the costs of providing transmission service to specifically designated load by BGE.
(c)In 2012, PJM terminated the MAPP transmission line construction project planned for the Pepco and DPL service territories. Pursuant to a FERC approved settlement agreement, the abandonment costs associated with MAPP were being recovered in transmission rates over a three-year period that ended in May 2016.
(d)Represents to the weighted average debt and equity return on transmission rate bases.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

(e)As part of the FERC-approved settlement of ComEd’s 2007 transmission rate case, the rate of return on common equity is 11.50%, inclusive of a 50-basis-point incentive adder for being a member of a RTO, and the common equity component of the ratio used to calculate the weighted average debt and equity return for the transmission formula rate is currently capped at 55%. As part of the FERC-approved settlement of the ROE complaint against BGE, Pepco, DPL and ACE, the rate of return on common equity is 10.50%, inclusive of a 50-basis-point incentive adder for being a member of a RTO.
Transmission Formula Rate (Exelon and PECO). On May 1, 2017, PECO filed a request with FERC seeking approval to update its transmission rates and change the manner in which PECO’s transmission rate is determined from a fixed rate to a formula rate. The formula rate would be updated annually to ensure that under this rate customers pay the actual costs of providing transmission services. The formula rate filing includes a requested increase of $22 million to PECO’s annual transmission revenues and a requested rate of return on common equity of 11%, inclusive of a 50 basis point adder for being a member of a regional transmission organization. PECO requested that the new transmission rate be effective as of July 2017. On June 27, 2017, FERC issued an Order accepting the filing and suspending the proposed rates until December 1, 2017, subject to refund, and set the matter for hearing and settlement judge procedures.  The parties currently are engaged in settlement discussions. PECO cannot predict the final outcome of the settlement or hearing proceedings, or the transmission formula FERC may approve.
Transmission-Related Income Tax Regulatory Assets (Exelon, ComEd, BGE, PHI, Pepco, DPL, and ACE). On December 13, 2016 (and as amended on March 13, 2017), BGE filed with FERC to begin recovering certain existing and future transmission-related income tax regulatory assets through its transmission formula rate. BGE’s existing regulatory assets included (1) amounts that, if BGE’s transmission formula rate provided for recovery, would have been previously amortized and (2) amounts that would be amortized and recovered prospectively. On November 16, 2017, FERC issued an order rejecting BGE’s proposed revisions to its transmission formula rate to recover these transmission-related income tax regulatory assets. On December 18,In the fourth quarter of 2017, ComEd, BGE, filed for clarificationPepco, DPL, and rehearing of FERC’s order, still seeking full recovery of its existingACE fully impaired their associated transmission-related income tax regulatory asset amounts.assets for the portion of the income tax regulatory assets that would have been previously amortized.
On February 23, 2018 (as amended on July 9, 2018), ComEd, Pepco, DPL, and ACE have similareach filed with FERC to revise their transmission formula rate mechanisms to permit recovery of transmission-related income tax regulatory assets, also requiring FERC approval separate from their transmission formula rate mechanisms. Similar regulatory assets at PECO are not subject to the same FERC transmission rate recovery formula and, thus, are not impacted by the November 16, 2017 FERC order.
Each of BGE, ComEd, Pepco, DPL and ACE believe there is sufficient basis to support full recovery of their existing transmission-related income tax regulatory assets, and each intends to further pursue such full recovery with FERC.  However, upon further consideration of the November 16, 2017 FERC order, management of each company concluded that the portion of the total transmission-related income tax regulatory assetsincluding those amounts that would have been previously amortized and recovered through rates had the transmission formula rate provided for such recovery was no longer probablerecovery.
On September 7, 2018, FERC issued orders rejecting (1) BGE’s rehearing request of recovery. As a result, Exelon,FERC's November 16, 2017 order and (2) the February 23, 2018 (as amended on July 9, 2018) filing by ComEd, BGE, PHI, Pepco, DPL, and ACE recordedfor similar recovery.
On November 2, 2018, BGE filed an appeal of FERC's September 7, 2018 order to the following chargesU.S. Court of Appeals for the D.C. Circuit. On March 27, 2020, the U.S. Court of Appeals for the D.C. Circuit Court denied BGE’s November 2, 2018 appeal.
On October 1, 2018, ComEd, BGE, Pepco, DPL, and ACE submitted filings to recover ongoing non-TCJA amortization amounts and credit TCJA transmission-related income tax regulatory liabilities to customers for the prospective period starting on October 1, 2018. On April 26, 2019, FERC issued an order accepting ComEd's, BGE's, Pepco's, DPL's, and ACE's October 1, 2018 filings, effective October 1, 2018, subject to refund and established hearing and settlement judge procedures. On April 24, 2020, ComEd, BGE, Pepco, DPL, ACE, and other parties filed a settlement agreement with FERC, which FERC approved on September 24, 2020. The settlement agreement provides for the recovery of ongoing transmission-related income tax regulatory assets and establishes the amount and amortization period for excess deferred income taxes resulting from TCJA. The settlement resulted in a reduction to Operating revenues and an offsetting reduction to Income tax expense within their Consolidated Statements of Operations and Comprehensive Income in the fourthsecond quarter 2017, reducing their associated transmission-related income tax regulatory assets.of 2020.
178

 For the year ended December 31, 2017
Exelon(a)
$35
ComEd3
BGE5
PHI(a)
27
Pepco14
DPL6
ACE7

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
__________
(a) Exelon reflects the consolidated regulatory asset impairmentsFERC Audit (Exelon and ComEd). The Registrants are subject to periodic audits and investigations by FERC. FERC’s Division of Audits and Accounting initiated a nonpublic audit of ComEd BGE, Pepco, DPLin May 2021 evaluating ComEd’s compliance with (1) approved terms, rates and ACE, and PHI reflects the consolidated regulatory asset impairmentsconditions of Pepco, DPL and ACE.
To the extent anyits transmission formula rate mechanism; (2) accounting requirements of the companies are ultimately successful withUniform System of Accounts; (3) reporting requirements of the FERC allowing future recoveryForm 1; and (4) the requirements for record retention. The audit covered the period from January 1, 2017 through August 31, 2022. On January 17, 2023, ComEd was provided with information on a series of these amounts,potential findings, including concerning ComEd's methodology regarding the associated regulatory assets will be reestablished, with corresponding decreasesallocation of certain overhead costs to Income tax expense. To the extent all or a portioncapital under FERC regulations. The final outcome and resolution of the prospective amortization amounts were no longer considered probablefindings or of recovery, Exelon, ComEd, BGE, PHI, Pepco, DPLthe audit itself cannot be predicted and ACE would record additional charges to Income tax expense, whichthe results, while not reasonably estimable at this time, could be up to approximately $81 million, $41 million, $22 million, $18 million, $8 million, $7 million and $3 million, respectively, as of December 31, 2017.
Refer to Deferred income taxes in the Regulatory Assets and Liabilities section below for the balances of these transmission-related income tax regulatory assets as of December 31, 2017 and 2016.
PJM Transmission Rate Design and Operating Agreements (Exelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE). PJM Transmission Rate Design specifies the rates for transmission service charged to customers within PJM. Currently, ComEd, PECO, BGE, Pepco, DPL and ACE incur costs based on the existing rate design, which charges customers based on the cost of the existing transmission facilities within their load zone and the cost of new transmission facilities based on those who benefit from those facilities. In April 2007, FERC issued an order concluding that PJM’s current rate design for existing facilities is just and reasonable and should not be changed. In the same order, FERC held that the costs of new facilities 500 kV and above should be socialized across the entire PJM footprint and that the costs of new facilities less than 500 kV should be allocatedmaterial to the customers of the new facilities who caused the need for those facilities. A number of parties appealed to the U.S. Court of Appeals for the Seventh Circuit for review of the decision.
In August 2009, the court issued its decision affirming the FERC’s order with regard to the existing facilities, but remanded to FERC the issue of the cost allocation associated with the new facilities 500 kV and above (Cost Allocation Issue) for further consideration by the FERC. On remand, FERC reaffirmed its earlier decision to socialize the costs of new facilities 500 kV and above. A number of parties filed appeals of these orders. In June 2014, the court again remanded the Cost Allocation Issue to FERC. On December 18, 2014, FERC issued an order setting an evidentiary hearing and settlement proceeding regarding the Cost Allocation Issue. On June 15, 2016, a number of parties, including Exelon and the Utility Registrants, filed a proposed Settlement with FERC.  If the Settlement is approved, 50%ComEd financial statements.









































179

Table of the costs of the 500 kV and above facilities approved by the PJM Board on or before February 1, 2013 will be socialized across PJM and 50% will be allocated according to a formula that calculates the flows on the transmission facilities.  Each state that is a party in this proceeding either signed, or did not oppose, the settlement.  The Settlement is opposed by a number of merchant transmission owners and New York load-serving entities. The Settlement includes provisions for monthly credits or charges that are expected to be mostly refunded or recovered through customer rates over a 10-year period based on negotiated numbers for charges prior to January 1, 2016.
Exelon expects that the Settlement will not have a material impact on the results of operations, cash flows and financial position of Generation, ComEd, PECO, BGE, Pepco, DPL or ACE. The Settlement is subject to approval by FERC. The FERC is not required to issue a decision on the matter within a specified period of time.
The Utility Registrants are committed to the construction of transmission facilities under their operating agreements with PJM to maintain system reliability. The Utility Registrants will work with PJM to continue to evaluate the scope and timing of any required construction projects. The Utility Registrants' estimated commitments are as follows:

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
 Total 2018 2019 2020 2021 2022
ComEd$164
 $36
 $60
 $44
 $24
 $
PECO53
 16
 19
 10
 5
 3
BGE118
 35
 35
 35
 13
 
Pepco86
 5
 11
 27
 33
 10
DPL27
 19
 2
 1
 2
 3
ACE121
 68
 20
 6
 21
 6
DOE Notice of Proposed Rulemaking (Exelon and Generation).  On August 23, 2017, the DOE staff released its report on the reliability of the electric grid. One aspect of the wide-ranging report is the DOE’s recognition that the electricity markets do not currently value the resiliency provided by baseload generation, such as nuclear plants. On September 28, 2017, the DOE issued a Notice of Proposed Rulemaking (NOPR) that would entitle certain eligible resilient generating units (i.e., those located in organized markets, with a 90-day supply of fuel on site, not already subject to state cost of service regulation and satisfying certain other requirements) to recover fully allocated costs and earn a fair return on equity on their investment. The DOE's NOPR recommended that the FERC take comments for 45 days after publication in the Federal Register and issue a final order 60 days after such publication.  On January 8, 2018, the FERC issued an order terminating the rulemaking docket that was initiated to address the proposed rule in the DOE NOPR, concluding the proposed rule did not sufficiently demonstrate there is a resiliency issue and that it proposed a remedy that did not appear to be just, reasonable and nondiscriminatory as required under the Federal Power Act. At the same time, the FERC initiated a new proceeding to consider resiliency challenges to the bulk power system and evaluate whether additional FERC action to address resiliency would be appropriate. The FERC directed each RTO and ISO to respond within 60 days to 24 specific questions about how they assess and mitigate threats to resiliency. Interested parties may submit reply comments within 30 days after the due date of the RTO/ISO responses. Exelon has been and will continue to be an active participant in these proceedings, but cannot predict the final outcome or its potential financial impact, if any, on Exelon or Generation.
Complaints at FERC Seeking to Mitigate Illinois and New York Programs Providing ZECs (Exelon and Generation). PJM and NYISO capacity markets include a Minimum Offer Price Rule (MOPR) that is intended to preclude buyers from exercising buyer market power. If a resource is subjected to a MOPR, its offer is adjusted to remove the revenues it receives through a federal, state or other government-provided financial support program - resulting in a higher offer that may not clear the capacity market. Currently, the MOPRs in PJM and NYISO apply only to certain new resources. Exelon has generally opposed policies that require subsidies or give preferential treatment to generation providers or technologies that do not provide superior reliability or environmental benefits, or that would threaten the reliability and value of the integrated electricity grid. Thus, Exelon has supported a MOPR as a means of minimizing the detrimental impact certain subsidized resources could have on capacity markets (such as the New Jersey (LCAPP) and Maryland (CfD) programs). However, in Exelon’s view, MOPRs should not be applied to resources that receive compensation for providing superior reliability or environmental benefits.
On January 9, 2017, the Electric Power Supply Association (EPSA) filed two requests with FERC: one seeking to amend a prior complaint against PJM and another seeking expedited action on a pending NYISO compliance filing in an existing proceeding. Both filings allege that the relevant MOPR should be expanded to also apply to existing resources receiving ZEC compensation under the New York CES and Illinois ZES programs. The EPSA parties have filed motions to expedite both proceedings. Exelon has filed protests at FERC in response to each filing, arguing generally that ZEC payments provide compensation for an environmental attribute that is distinct from the energy and capacity sold in the FERC-jurisdictional markets, and therefore, are no different than other renewable support programs like

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

the PTC and RPS that have generally not been subject to a MOPR. However, if successful, for Generation's facilities in NYISO and PJM expected to receive ZEC compensation (Quad Cities, Ginna, Nine Mile Point and FitzPatrick), an expanded MOPR could require exclusion of ZEC compensation when bidding into future capacity auctions such that these facilities would have an increased risk of not clearing in those auctions and thus no longer receiving capacity revenues during the respective ZEC programs. Any such mitigation of these generating resources could have a material effect on Exelon’s and Generation’s future cash flows and results of operations. On August 30, 2017, EPSA filed motions to lodge the district court decisions dismissing the complaints and urging FERC to act expeditiously on its requests to expand the MOPR. On September 14, 2017, Exelon filed a response in each docket noting that it does not oppose the motions to lodge but arguing that the requests to expedite a decision on the requests to expand the MOPR have no merit. The timing of FERC’s decision with respect to both proceedings is currently unknown and the outcome of these matters is currently uncertain.
Operating License Renewals (Exelon and Generation).  On August 29, 2012, Generation submitted a hydroelectric license application to FERC for a 46-year license for the Conowingo Hydroelectric Project (Conowingo). In connection with Generation’s efforts to obtain a water quality certification pursuant to Section 401 of the Clean Water Act with Maryland Department of the Environment (MDE) for Conowingo, Generation continues to work with MDE and other stakeholders to resolve water quality licensing issues, including: (1) water quality, (2) fish habitat, and (3) sediment.
On April 21, 2016, Exelon and the US Fish and Wildlife Service of the US Department of the Interior executed a Settlement Agreement resolving all fish passage issues between the parties. The financial impact of the Settlement Agreement is estimated to be $3 million to $7 million per year, on average, over the 46-year life of the new license, including both capital and operating costs. The actual timing and amount of these costs are not currently fixed and may vary significantly from year to year throughout the life of the new license.
Resolution of the remaining issues relating to Conowingo involving various stakeholders may have a material effect on Exelon’s and Generation’s results of operations and financial positions through an increase in capital expenditures and operating costs. As of December 31, 2017, $31 million of direct costs associated with Conowingo licensing efforts have been capitalized.
Regulatory Assets and Liabilities (Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE)
Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE each prepare their consolidated financial statements in accordance with the authoritative guidance for accounting for certain types of regulation. Under this guidance, regulatoryRegulatory assets represent incurred costs that have been deferred because of their probable future recovery from customers through regulated rates. Regulatory liabilities represent the excess recovery of costs or accrued credits that have been deferred because it is probable such amounts will be returned to customers through future regulated rates or represent billings in advance of expenditures for approved regulatory programs.
As a result of applying the acquisition method of accounting and pushing it down to the consolidated financial statements of PHI, certain regulatory assets and liabilities were established at Exelon and PHI to offset the impacts of fair valuing the acquired assets and liabilities assumed which are subject to regulatory recovery. In total, Exelon and PHI recorded a net $2.4 billion regulatory asset reflecting adjustments recorded as a result of the acquisition method of accounting. See Note 4 - Mergers, Acquisitions and Dispositions for additional information.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following tables provide information about the regulatory assets and liabilities of Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACEthe Registrants as of December 31, 20172022 and December 31, 2016:2021:
December 31, 2022ExelonComEdPECOBGEPHIPepcoDPLACE
Regulatory assets
Pension and OPEB$1,867 $— $— $— $— $— $— $— 
Pension and OPEB - merger related769 — — — — — — — 
Deferred income taxes606 — 595 — 11 11 — — 
AMI programs - deployment costs122 — — 69 53 25 22 
AMI programs - legacy meters160 48 — 20 92 53 17 22 
Electric distribution formula rate annual reconciliations271 271 — — — — — — 
Electric distribution formula rate significant one-time events115 115 — — — — — — 
Energy efficiency costs1,434 1,434 — — — — — — 
Fair value of long-term debt521 — — — 414 — — — 
Fair value of PHI's unamortized energy contracts44 — — — 44 — — — 
Carbon mitigation credit843 843 — — — — — — 
Asset retirement obligations151 99 22 21 
MGP remediation costs318 293 13 12 — — — — 
Renewable energy85 85 — — — — — — 
Electric energy and natural gas costs241 — 15 25 201 41 26 134 
Transmission formula rate annual reconciliations37 — 16 — 21 13 
Energy efficiency and demand response programs560 — — 286 274 187 74 13 
Under-recovered revenue decoupling106 — — 98 98 — — 
Removal costs782 — — 171 611 144 109 359 
DC PLUG charge37 — — — 37 37 — — 
Deferred storm costs90 — — 55 35 31 
COVID-1958 20 17 13 10 — 
Under-recovered credit loss expense71 38 — — 33 — — 33 
Other390 196 54 29 119 55 22 12 
Total regulatory assets9,678 3,442 732 704 2,065 672 282 624 
        Less: current portion1,641 775 80 177 455 235 80 130 
Total noncurrent regulatory assets$8,037 $2,667 $652 $527 $1,610 $437 $202 $494 

         Successor      
December 31, 2017Exelon ComEd PECO BGE PHI Pepco DPL ACE
Regulatory assets               
Pension and other postretirement benefits$3,848
 $
 $
 $
 $
 $
 $
 $
Deferred income taxes306
 
 297
 
 9
 9
 
 
AMI programs640
 155
 36
 214
 235
 158
 77
 
Electric distribution formula rate244
 244
 
 
 
 
 
 
Energy efficiency costs166
 166
 
 
 
 
 
 
Debt costs116
 37
 1
 11
 73
 15
 8
 5
Fair value of long-term debt758
 
 
 
 619
 
 
 
Fair value of PHI's unamortized energy contracts750
 
 
 
 750
 
 
 
Asset retirement obligations109
 73
 22
 14
 
 
 
 
MGP remediation costs295
 273
 22
 
 
 
 
 
Under-recovered uncollectible accounts61
 61
 
 
 
 
 
 
Renewable energy258
 256
 
 
 2
 
 1
 1
Energy and transmission programs82
 6
 1
 23
 52
 11
 15
 26
Deferred storm costs27
 
 
 
 27
 7
 5
 15
Energy efficiency and demand response programs596
 
 1
 285
 310
 229
 81
 
Merger integration costs45
 
 
 6
 39
 20
 10
 9
Under-recovered revenue decoupling55
 
 
 14
 41
 38
 3
 
COPCO acquisition adjustment5
 
 
 
 5
 
 5
 
Workers compensation and long-term disability costs35
 
 
 
 35
 35
 
 
Vacation accrual19
 
 6
 
 13
 
 8
 5
Securitized stranded costs79
 
 
 
 79
 
 
 79
CAP arrearage8
 
 8
 
 
 
 
 
Removal costs529
 
 
 
 529
 150
 93
 286
DC PLUG charge190
 
 
 
 190
 190
 
 
Other67
 8
 16
 4
 39
 29
 8
 4
Total regulatory assets9,288
 1,279
 410
 571

3,047

891

314

430
        Less: current portion1,267
 225
 29
 174
 554
 213
 69
 71
Total noncurrent regulatory assets$8,021
 $1,054
 $381
 $397

$2,493

$678

$245

$359
180


Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
December 31, 2022ExelonComEdPECOBGEPHIPepcoDPLACE
Regulatory liabilities
Deferred income taxes$3,546 $2,010 $— $682 $854 $402 $304 $148 
Decommissioning the Regulatory Agreement Units2,897 2,660 237 — — — — — 
Removal costs1,750 1,604 — 35 111 20 91 — 
Electric energy and natural gas costs87 11 65 — — 
Transmission formula rate annual reconciliations31 — 18 10 — 
Renewable portfolio standards costs810 810 — — — — — — 
Stranded costs— — — — — 
Energy efficiency and demand response programs15 — 15 — — — — — 
Over-recovered revenue decoupling19 — — 15 — 
Dedicated facilities charge110 — — 110 — — — — 
Other275 41 28 10 81 30 15 16 
Total regulatory liabilities9,549 7,139 345 863 1,087 461 424 182 
        Less: current portion437 226 75 47 76 44 26 
Total noncurrent regulatory liabilities$9,112 $6,913 $270 $816 $1,011 $455 $380 $156 
181

         Successor      
December 31, 2017Exelon ComEd PECO BGE PHI Pepco DPL ACE
Regulatory liabilities               
Other postretirement benefits$30
 $
 $
 $
 $
 $
 $
 $
Deferred income taxes5,241
 2,479
 
 1,032
 $1,730
 809
 510
 411
Nuclear decommissioning3,064
 2,528
 536
 
 
 
 
 
Removal costs1,573
 1,338
 
 105
 130
 20
 110
 
Deferred rent36
 
 
 
 36
 
 
 
Energy efficiency and demand response programs23
 4
 19
 
 
 
 
 
DLC program costs7
 
 7
 
 
 
 
 
Electric distribution tax repairs35
 
 35
 
 
 
 
 
Gas distribution tax repairs9
 
 9
 
 
 
 
 
Energy and transmission programs111
 47
 60
 
 4
 
 1
 3
Renewable portfolio standards costs63
 63
 
 
 
 
 
 
Zero emission credit costs112
 112
 
 
 
 
 
 
Over-recovered uncollectible accounts2
 
 
 
 2
 
 
 2
Other82
 6
 24
 26
 26
 3
 14
 6
Total regulatory liabilities10,388
 6,577
 690
 1,163

1,928

832

635

422
        Less: current portion523
 249
 141
 62
 56
 3
 42
 11
Total noncurrent regulatory liabilities$9,865
 $6,328
 $549
 $1,101

$1,872

$829

$593

$411

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
December 31, 2021ExelonComEdPECOBGEPHIPepcoDPLACE
Regulatory assets
Pension and OPEB$2,409 $— $— $— $— $— $— $— 
Pension and OPEB - merger related893 — — — — — — — 
Deferred income taxes883 — 873 — 10 10 — — 
AMI programs - deployment costs145 — — 89 56 30 26 — 
AMI programs - legacy meters186 69 — 29 88 60 21 
Electric distribution formula rate annual reconciliations44 44 — — — — — — 
Electric distribution formula rate significant one-time events104 104 — — — — — — 
Energy efficiency costs1,181 1,181 — — — — — — 
Fair value of long-term debt557 — — — 443 — — — 
Fair value of PHI's unamortized energy contracts236 — — — 236 — — — 
Asset retirement obligations145 99 21 19 — 
MGP remediation costs283 266 — — — — 
Renewable energy219 219 — — — — — — 
Electric energy and natural gas costs96 — — 49 47 29 13 
Transmission formula rate annual reconciliations43 — 14 28 — 20 
Energy efficiency and demand response programs564 — — 283 281 199 79 
Under-recovered revenue decoupling157 — — 32 125 125 — — 
Removal costs758 — — 143 615 147 109 360 
DC PLUG charge70 — — — 70 70 — — 
Deferred storm costs49 — — — 49 43 
COVID-1982 28 33 13 10 — 
Under-recovered credit loss expense89 60 — — 29 — — 29 
Other327 135 42 30 130 57 18 23 
Total regulatory assets9,520 2,205 991 692 2,226 745 280 491 
        Less: current portion1,296 335 48 215 432 213 68 61 
Total noncurrent regulatory assets$8,224 $1,870 $943 $477 $1,794 $532 $212 $430 
182

         Successor      
December 31, 2016Exelon ComEd PECO BGE PHI Pepco DPL ACE
Regulatory assets               
Pension and other postretirement benefits$4,162
 $
 $
 $
 $
 $
 $
 $
Deferred income taxes2,016
 75
 1,583
 98
 260
 171
 38
 51
AMI programs701
 164
 49
 230
 258
 174
 84
 
Electric distribution formula rate188
 188
 
 
 
 
 
 
Debt costs124
 42
 1
 7
 81
 17
 9
 6
Fair value of long-term debt812
 
 
 
 671
 
 
 
Fair value of PHI's unamortized energy contracts1,085
 
 
 
 1,085
 
 
 
Asset retirement obligations111
 76
 23
 12
 
 
 
 
MGP remediation costs305
 278
 26
 1
 
 
 
 
Under-recovered uncollectible accounts56
 56
 
 
 
 
 
 
Renewable energy260
 258
 
 
 2
 
 
 2
Energy and transmission programs89
 23
 
 38
 28
 6
 5
 17
Deferred storm costs36
 
 
 1
 35
 12
 5
 18
Electric generation-related regulatory asset10
 
 
 10
 
 
 
 
Rate stabilization deferral7
 
 
 7
 
 
 
 
Energy efficiency and demand response programs621
 
 1
 285
 335
 250
 85
 
Merger integration costs25
 
 
 10
 15
 11
 4
 
Under-recovered revenue decoupling27
 
 
 3
 24
 21
 3
 
COPCO acquisition adjustment8
 
 
 
 8
 
 8
 
Workers compensation and long-term disability costs34
 
 
 
 34
 34
 
 
Vacation accrual31
 
 7
 
 24
 
 14
 10
Securitized stranded costs138
 
 
 
 138
 
 
 138
CAP arrearage11
 
 11
 
 
 
 
 
Removal costs477
 
 
 
 477
 134
 88
 255
Other54
 7
 9
 10
 29
 22
 5
 4
Total regulatory assets11,388
 1,167
 1,710
 712

3,504

852

348

501
        Less: current portion1,342
 190
 29
 208
 653
 162
 59
 96
Total noncurrent regulatory assets$10,046
 $977
 $1,681
 $504

$2,851

$690

$289

$405

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
         Successor      
December 31, 2016Exelon ComEd PECO BGE PHI Pepco DPL ACE
Regulatory liabilities               
Other postretirement benefits$47
 $
 $
 $
 $
 $
 $
 $
Nuclear decommissioning2,607
 2,169
 438
 
 
 
 
 
Removal costs1,601
 1,324
 
 141
 136
 18
 118
 
Deferred rent39
 
 
 
 39
 
 
 
Energy efficiency and demand response programs185
 141
 41
 
 3
 3
 
 
DLC program costs8
 
 8
 
 
 
 
 
Electric distribution tax repairs76
 
 76
 
 
 
 
 
Gas distribution tax repairs20
 
 20
 
 
 
 
 
Energy and transmission programs134
 60
 56
 
 18
 8
 5
 5
Other72
 4
 5
 19
 41
 2
 17
 20
Total regulatory liabilities4,789
 3,698
 644
 160

237

31

140

25
        Less: current portion602
 329
 127
 50
 79
 11
 43
 25
Total noncurrent regulatory liabilities$4,187
 $3,369
 $517
 $110

$158

$20

$97

$
December 31, 2021ExelonComEdPECOBGEPHIPepcoDPLACE
Regulatory liabilities
Deferred income taxes$4,005 $2,105 $— $819 $1,081 $525 $354 $202 
Decommissioning the Regulatory Agreement Units3,357 2,760 597 — — — — — 
Removal costs1,694 1,541 — 39 114 20 94 — 
Electric energy and natural gas costs113 25 71 — 17 
Transmission formula rate annual reconciliations— — — — 
Renewable portfolio standards costs500 500 — — — — — — 
Stranded costs35 — — — 35 — — 24 
Other292 61 102 58 15 11 
Total regulatory liabilities10,004 6,944 729 960 1,306 563 466 242 
        Less: current portion376 185 94 26 68 14 25 28 
Total noncurrent regulatory liabilities$9,628 $6,759 $635 $934 $1,238 $549 $441 $214 
Descriptions of the regulatory assets and liabilities included in the tables above are summarized below, including their recovery and amortization periods. Unless otherwise noted, the Utility Registrants are not earning or paying a return on these amounts.
Pension and other postretirement benefits. PECO’s regulatory recovery for pension is based on cash contributions and, thus, is not included in the regulatory asset balances above.  Otherwise, these amounts represent the Utility Registrants’
Line ItemDescriptionEnd Date of Remaining Recovery/Refund PeriodReturn
Pension and OPEBPrimarily reflects the Utility Registrants' and PHI's portion of deferred costs, including unamortized actuarial losses (gains) and prior service costs (credits), associated with Exelon's pension and OPEB plans, which are recovered through customer rates once amortized through net periodic benefit cost. Also, includes the Utility Registrants' and PHI's non–service cost components capitalized in Property, plant and equipment, net on their Consolidated Balance Sheets.The deferred costs are amortized over the plan participants' average remaining service periods subject to applicable pension and OPEB cost recognition policies. See Note 14 — Retirement Benefits for additional information. The capitalized non–service cost components are amortized over the lives of the underlying assets.No
Pension and OPEB - merger relatedThe deferred costs established at the date of the Constellation and PHI mergers are amortized over the plan participants' average remaining service periods subject to applicable pension and OPEB cost recognition policies. The costs are recovered through customer rates once amortized through net periodic benefit cost. See Note 14 — Retirement Benefits for additional information. The capitalized non–service cost components are amortized over the lives of the underlying assets.
Legacy BGE - 2038
Legacy PHI - 2032
No
183

Table of deferred costs associated with Exelon’s pension and other postretirement benefit plans, which are recovered through customer rates.  These amounts are generally amortized over the plan participants’ average remaining service periods, subject to applicable cost recognition policies allowed under the authoritative guidance for pensions and postretirement benefits.  See Note 16 - Retirement Benefits for additional information.  These amounts also include regulatory assets established at the Constellation and PHI merger dates of $440 million and $953 million, respectively, as of December 31, 2017 and $492 million and $1,027 million, respectively, as of December 31, 2016 related to the rate regulated portions of the deferred costs associated with legacy Constellation’s and PHI’s pension and other postretirement benefit plans that are being amortized and recovered over approximately 12 years and 3 to 15 years, respectively (as established at the respective acquisition dates).
Deferred income taxes. These amounts represent deferred income taxes that are recoverable or refundable through customer rates, primarily associated with accelerated depreciation, the equity component of the allowance for funds used during construction, and the effects of income tax rate changes, including those resulting from the TCJA. These amounts are being amortized over the period in which the related deferred income taxes reverse, which is generally based on the expected life of the underlying assets, but may vary for certain deferred income taxes based on the determination of the rate regulators. These amounts include transmission-related regulatory liabilities that require FERC approval separate from the transmission formula rate of $484 million, $137 million, $147 million, $148 million and $147 million for ComEd, BGE, Pepco, DPL and ACE, respectively, as of December 31, 2017. The December 31, 2017 balances reflect the impact of regulatory liabilities recorded in the fourth quarter, 2017 associated with the income tax rate reductions under the TCJA of $553 million, $174 million, $161 million, $160 million and $152 million for ComEd, BGE, Pepco, DPL and ACE, respectively, as well as the impact of impairment charges discussed above. As of December 31, 2016 the comparative amounts are a regulatory asset of $22 million, $38 million, $31 million, $20 million and $19 million for ComEd, BGE, Pepco, DPL and ACE, respectively. See Note 14— Income Taxes and the Transmission-Related Income Tax Regulatory Assets section above for additional information.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
AMI programs. For ComEd, this amount primarily represents accelerated depreciation costs resulting from the early retirements
Line ItemDescriptionEnd Date of Remaining Recovery/Refund PeriodReturn
Deferred income taxesRepresents deferred income taxes that are recoverable or refundable through customer rates, primarily associated with accelerated depreciation, the equity component of AFUDC, and the effects of income tax rate changes, including those resulting from the TCJA. These amounts include transmission-related regulatory liabilities that require FERC approval separate from the transmission formula rate. See Transmission-Related Income Tax Regulatory Assets section above for additional information.Amounts are recoverable over the period in which the related deferred income taxes reverse, which is generally based on the expected life of the underlying assets. For TCJA, generally refunded over the remaining depreciable life of the underlying assets, except in certain jurisdictions where the commissions have approved a shorter refund period for certain assets not subject to IRS normalization rules.No
AMI programs - deployment costs
Represents installation and ongoing incremental costs of new smart meters, including implementation costs at Pepco and DPL of dynamic pricing for energy usage resulting from smart meters.
BGE - 2026
Pepco - 2029
DPL - 2030
ACE - To be determined in next distribution rate case filed with NJBPU
BGE, Pepco, DPL - Yes

ACE - Yes, on incremental costs of new smart meters
AMI programs - legacy metersRepresents early retirement costs of legacy meters.
ComEd - 2028
BGE - 2026
Pepco - 2029
DPL - 2030
ACE - To be determined in next distribution rate case filed with NJBPU
ComEd, Pepco (District of Columbia), DPL (Delaware), ACE - Yes
BGE, Pepco (Maryland), DPL (Maryland) - No
Electric distribution formula rate annual reconciliations
Represents under/(over)-recoveries related to electric distribution service costs recoverable through ComEd's performance-based formula rate, which is updated annually with rates effective on January 1st.
2024
Yes
Electric distribution formula rate significant one-time eventsRepresents deferred distribution service costs related to ComEd's significant one-time events (e.g., storm costs), which are recovered over 5 years from date of the event.2026Yes
184

Table of non-AMI meters, which will be amortized over an average ten-year period pursuant to the ICC approved AMI Deployment plan. ComEd is earning a return on the regulatory asset.
For PECO, this amount primarily represents accelerated depreciation on PECO’s non-AMI meter assets over a 10-year period ending December 31, 2020. Recovery of smart meter costs are reflected in base rates effective January 1, 2016.
For BGE, this amount represents AMI costs associated with the installation of smart meters and the early retirement of legacy meters. The incremental costs associated with the installation, along with depreciation, amortization, and an appropriate return, had been building in a regulatory asset since the MDPSC approved the comprehensive smart grid initiative for BGE in August 2010 through approval of the program in BGE’s rate order issued June 2016. As of December 31, 2017, the balance of BGE’s regulatory asset was $214 million, which consists of three major components, including $129 million of unamortized incremental deployment costs of the AMI program, $53 million of unamortized costs of the non-AMI meters replaced under the program, and $32 million related to post-test year incremental program deployment costs incurred prior to approval became effective June 2016. As of December 31, 2016, the balance of BGE’s regulatory asset was $230 million, which consists of three major components, including $144 million of unamortized incremental deployment costs of the AMI program, $54 million of unamortized costs of the non-AMI meters replaced under the program, and $32 million related to post-test year incremental program deployment costs incurred prior to approval became effective June 2016. The balances above reflect the impact of the cost allowances and adjustments in BGE's 2015 electric and natural gas distribution rate case. The incremental deployment costs for the AMI program and the non-AMI meter components of the regulatory asset are being amortized and recovered through rates over a 10-year period, which began in June 2016, while the post-test year incremental program deployment costs have not yet been approved for recovery by the MDPSC. A return on the regulatory asset is currently included in rates, except for the portion representing the unamortized cost of the retired non-AMI meters and the portion related to post-test year incremental program deployment costs. 
For PHI, this amount represents AMI costs associated with the installation of smart meters and the early retirement of legacy meters throughout the service territories for Pepco and DPL. An AMI program has not been approved by the NJBPU for ACE in New Jersey. Pepco has received approval for recovery of deferred AMI program costs from the DCPSC and the MDPSC in its District of Columbia and Maryland service territories.  Pepco does earn a return on the AMI deployment costs, but not on the early retirement of legacy meters. DPL has received approval for recovery of deferred AMI program costs from the DPSC and the MDPSC in its Delaware and Maryland service territories. DPL earns a return on the AMI deployment costs, but not on the early retirement of legacy meters.
Electric Distribution Formula Rate. These amounts represent under recoveries related to electric distribution services costs recoverable through ComEd’s performance based formula rate. Under (over) recoveries for the annual reconciliations are recoverable (refundable) over a one-year period and costs for certain one-time events, such as large storms, are recoverable over a five-year period. ComEd earns and pays a return on under and over-recovered costs, respectively. As of December 31, 2017, the regulatory asset was comprised of $186 million for the 2016 and 2017 annual reconciliations and $58 million related to significant one-time events. As of December 31, 2016, the regulatory asset of $188 million was comprised of $134 million for the 2015 and 2016 annual reconciliations and $54 million related to significant one-time events.
Energy efficiency costs. These amounts represent deferred energy efficiency costs beginning June 1, 2017 that will be recovered through ComEd's energy efficiency formula rate tariff over the weighted average useful life of the related energy efficiency measures. The balance also includes the reconciliation of the difference of the revenue requirement in effect for the prior year and the revenue

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
requirement based on actual prior year costs. ComEd earns a return on the energy efficiency regulatory asset.
Line ItemDescriptionEnd Date of Remaining Recovery/Refund PeriodReturn
Energy efficiency costs
Represents ComEd's costs recovered through the energy efficiency formula rate tariff and the reconciliation of the difference of the revenue requirement in effect for the prior year and the revenue requirement based on actual prior year costs. Deferred energy efficiency costs are recovered over the weighted average useful life of the related energy measure.2034Yes
Fair value of long-term debt
Represents the difference between the carrying value and fair value of long-term debt of BGE and PHI of $107 million and $414 million, respectively, as of December 31, 2022, and $114 million and $443 million, respectively, as of December 31, 2021, as of the PHI and Constellation merger dates.BGE - 2036
PHI - 2045
No
Fair value of PHI’s unamortized energy contracts
Represents the regulatory assets recorded at Exelon and PHI offsetting the fair value adjustment related to Pepco's, DPL's, and ACE's electricity and natural gas energy supply contracts recorded at PHI as of the PHI merger date.2036No
Carbon mitigation creditRepresents CMC procurement costs and credits as well as reasonable costs ComEd has incurred to implement and comply with the CMC procurement process.Over 9 months starting with the September billing period and ending with the following May billing periodNo
Asset retirement obligationsRepresents future legally required removal costs associated with existing AROs.Over the life of the related assetsYes, once the removal activities have been performed
MGP remediation costs
Represents environmental remediation costs for MGP sites recorded at ComEd, PECO, and BGE.
ComEd and PECO - Over the expected remediation period. See Note 18 — Commitments and Contingencies for additional information.

BGE - 10 years from when the remediation spend is approved by the MDPSC.
ComEd and PECO - No

BGE - Yes
Renewable energyRepresents the change in fair value of ComEd‘s 20-year floating-to-fixed long-term renewable energy swap contracts.2032No
Debt costs. The Utility Registrants’ debt costs are used in the determination
185

Table of their weighted average cost of capital, which is applied to rate base for rate-making purposes. Consistent with the treatment for ratemaking purposes, ComEd’s, PECO’s, and Pepco’s recoverable losses or refundable gains on reacquired long-term debt are deferred and amortized to interest expense over the life of the new debt issued to finance the debt redemption or over the life of the original debt issuance if the debt is not refinanced, while BGE’s, DPL’s, and ACE’s  recoverable losses or refundable gains on reacquired long-term debt are deferred and amortized to interest expense over the life of the original debt issuance even if the debt was refinanced.  The regulatory asset for Pepco, DPL and ACE as of March 23, 2016 was eliminated at Exelon and PHI as part of acquisition accounting.
Fair value of long-term debt. These amounts represent the unamortized regulatory assets recorded at Exelon for the difference between the carrying value and fair value of the long-term debt of BGE as of the Constellation merger date based on the MDPSC practice to allow BGE to recover its debt costs through rates and at Exelon and PHI for the difference between carrying value and fair value of long-term debt of Pepco, DPL and ACE as of the PHI Merger date. Exelon is amortizing the regulatory asset and the associated fair value over the life of the underlying debt.
Fair value of PHI's unamortized energy contracts. These amounts represent the regulatory asset recorded at Exelon and PHI offsetting the fair value adjustments related to Pepco's, DPL's and ACE's electricity and natural gas energy supply contracts recorded at PHI as of the PHI Merger date. Pepco, DPL and ACE are allowed full recovery of the costs of these contracts through their respective rate making processes.
Asset retirement obligations. These costs represent future legally required removal costs associated with existing asset retirement obligations. PECO will begin to earn a return on, and a recovery of, these costs once the removal activities have been performed. ComEd and BGE will recover these costs through future depreciation rates and will earn a return on these costs once the removal activities have been performed. The recovery period will be over the expected life of the related assets. See Note 15 — Asset Retirement Obligations for additional information.
MGP remediation costs. ComEd is allowed recovery of these costs under ICC approved rates. For PECO, these costs are recoverable through rates as affirmed in the 2010 approved natural gas distribution rate case settlement. The period of recovery for both ComEd and PECO will depend on the timing of the actual expenditures, currently estimated to be completed in 2022 for both ComEd and PECO. While BGE does not have a rider for MGP clean-up costs, BGE has historically received recovery of actual clean-up costs on a site-specific basis in distribution rates. For BGE, $5 million of clean-up costs incurred during the period from July 2000 through November 2005 and an additional $1 million from December 2005 through November 2010 are recoverable through rates in accordance with MDPSC orders. BGE is earning a return on this regulatory asset and these costs are being amortized over 10-year periods that began in January 2006 and December 2010, respectively. The recovery period for the 10-year period that began January 2006 was extended for an additional 24 months, in accordance with the MDPSC approved 2014 electric and natural gas distribution rate case order. See Note 23 — Commitments and Contingencies for additional information.
Under-recovered uncollectible accounts. These amounts represent the difference between ComEd’s annual uncollectible accounts expense and revenues collected in rates through an ICC-approved rider. The difference between net uncollectible account charge-offs and revenues collected through the rider each calendar year is recovered or refunded over a twelve-month period beginning in June of the following calendar year.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
Renewable energy. In December 2010, ComEd entered into several 20-year floating-to-fixed energy swap contracts with unaffiliated suppliers for the procurement
Line ItemDescriptionEnd Date of Remaining Recovery/Refund PeriodReturn
Electric energy and natural gas costsRepresents under (over)-recoveries related to energy and gas supply related costs recoverable (refundable) under approved rate riders.2025
DPL (Delaware), ACE - Yes
ComEd, PECO, BGE, Pepco, DPL (Maryland) - No
Transmission formula rate annual reconciliations
Represents under (over)-recoveries related to transmission service costs recoverable through the Utility Registrants’ FERC formula rates, which are updated annually with rates effective each June 1st.
2024Yes
Energy efficiency and demand response programsIncludes under (over)-recoveries of costs incurred related to energy efficiency programs and demand response programs and recoverable costs associated with customer direct load control and energy efficiency and conservation programs that are being recovered from customers.

PECO - 2025
BGE - 2027
Pepco, DPL - 2037
ACE - 2032
BGE, Pepco (Maryland), DPL (Maryland), ACE - Yes
DPL (Delaware), Pepco (District of Columbia) - No
PECO - Yes on capital investment recovered through this mechanism
Under (over) -recovered revenue decoupling
Represents electric and / or gas distribution costs recoverable from or refundable to customers under decoupling mechanisms.
BGE - 2023
Pepco (Maryland) - $11 million - 2023
Pepco (District of Columbia) - $87 million: $49 million to be recovered via monthly surcharge by 2024; $38 million to be recovered via the monthly surcharge, the timing of which will be impacted by the next multi-year plan filed with DCPSC
DPL - 2023
ACE - 2024
BGE, Pepco, DPL, ACE - No
Stranded costs
The regulatory asset represents certain stranded costs associated with ACE's former electricity generation business. The regulatory liability represents overcollection of a customer surcharge collected by ACE to fund principal and interest payments on Transition Bonds of ACE Transition Funding that securitized such costs.Stranded costs - 2022

Overcollection - 2024
Stranded costs - Yes

Overcollection - No
186

Table of long-term renewable energy and associated RECs through 2032 in order to meet a portion of its obligations under the Illinois RPS. Delivery under the contracts began in June 2012. Since the swap contracts were deemed prudent by the Illinois Settlement Legislation, ensuring ComEd of full recovery in rates, the changes in fair value each period as well as an offsetting regulatory asset or liability are recorded by ComEd. ComEd does not earn (pay) a return on the regulatory asset (liability). Recovery of these costs will continue through 2032. The basis for the mark-to-market derivative asset or liability position is based on the difference between ComEd’s cost to purchase energy at the market price and the contracted price.
Beginning with the 2012 compliance year the DPSC required DPL to be responsible for the RPS compliance obligation with respect to energy delivered to all end use customers, including RES supplied customers. This obligation has been met by DPL entering into long term contract(s) for the procurement of renewable energy. This energy is then sold into the market at current energy prices to offset the net cost to customers. An RPS surcharge is billed to customers to ensure recovery of the procurement costs with any variance recorded as an asset or liability. The balance at year end represents an under-recovery of the net procurement costs. These costs will be recovered over the life of the contracts, which range from 15 to 20 years.
In 2008 the NJBPU directed ACE to file a program for the purchase of Solar Renewable Energy Credits (SREC’s). In 2009 the NJBPU approved ACE’s SREC based contracting program and authorized ACE to enter into long-term contracts to purchase SREC’s generated by solar generation projects. ACE is required to auction the purchased SREC’s under Purchase and Sale Agreements (PSA) with the solar project developers. In 2015 the NJBPU authorized a “phase II” SREC program. A Regional Greenhouse Gas Initiative (RGGI) surcharge rider ensures recovery of the SREC costs. The balance at year end represents an under-recovery of the SREC costs. These costs will be recovered over the life of the contracts, which range from 15 to 20 years.
Energy and transmission programs. These amounts represent under (over) recoveries related to energy and transmission costs recoverable (refundable) under ComEd’s ICC and/or FERC-approved rates. Under (over) recoveries are recoverable (refundable) over a one-year period or less. ComEd earns a return or interest on under-recovered costs and pays interest on over-recovered costs to customers. As of December 31, 2017, ComEd's regulatory asset of $6 million represents transmission costs recoverable through its FERC approved formula rate. As of December 31, 2017, ComEd's regulatory liability of $47 million included $14 million related to over-recovered energy costs and $33 million associated with revenues received for renewable energy requirements. As of December 31, 2016, ComEd's regulatory asset of $23 million included $15 million associated with transmission costs recoverable through its FERC-approved formula rate tariff and $8 million of Constellation merger and integration costs to be recovered upon FERC approval. As of December 31, 2016, ComEd's regulatory liability of $60 million included $30 million related to over-recovered energy costs and $30 million associated with revenues received for renewable energy requirements. See Transmission Formula Rate above for further details.
The PECO energy costs represent the electric and gas supply related costs recoverable (refundable) under PECO’s GSA and PGC, respectively. PECO earns interest on the under-recovered energy and natural gas costs and pays interest on over-recovered energy and natural gas costs to customers. In addition, the DSP Program costs are presented on a net basis with PECO’s GSA under (over)-recovered energy costs. These amounts represent recoverable administrative costs incurred relating to the filing and procurement associated with PECO’s PAPUC-approved DSP programs for the procurement of electric supply. The filings and procurements of these DSP Programs are recoverable through the GSA over each respective term. DSP III has a 24-month term that began June 1, 2015, and DSP IV has a 48-month term that began June 1, 2017. The independent evaluator costs associated with conducting procurements are recoverable over a 12-month period after the PAPUC approves the results

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
Line ItemDescriptionEnd Date of Remaining Recovery/Refund PeriodReturn
Removal costs
For BGE, Pepco, DPL, and ACE, the regulatory asset represents costs incurred to remove property, plant and equipment in excess of amounts received from customers through depreciation rates. For ComEd, BGE, Pepco, and DPL, the regulatory liability represents amounts received from customers through depreciation rates to cover the future non–legally required cost to remove property, plant and equipment, which reduces rate base for ratemaking purposes.BGE, Pepco, DPL, and ACE - Asset is generally recovered over the life of the underlying assets.

ComEd, BGE, Pepco, and DPL - Liability is reduced as costs are incurred.
Yes
DC PLUG charge
Represents costs associated with DC PLUG, which is a projected six-year, $500 million project to place underground some of the District of Columbia’s most outage-prone power lines with $250 million of the project costs funded by Pepco and $250 million funded by the District of Columbia. Rates for the DC PLUG initiative went into effect on February 7, 2018.2024Portion of asset funded by Pepco-Yes
Deferred storm costsFor Pepco, DPL, ACE, and BGE, amounts represent total incremental storm restoration costs incurred due to major storm events recoverable from customers in the Maryland and New Jersey jurisdictions.
Pepco - 2024

DPL - 2027

ACE - $24 million - 2024; $7 million to be determined in next distribution rate case filed with NJBPU

BGE - $55 million to be determined in next multi-year plan filed with MDPSC
Pepco, DPL, BGE - Yes

ACE - No
Decommissioning the Regulatory Units
Represents estimated excess funds at the end of decommissioning the Regulatory Agreement Units. See below regarding Decommissioning the Regulatory Agreement Units for additional information.
Not currently being refunded
No
187

Table of the procurements. PECO is not earning a return on these costs. Certain costs included in PECO's original DSP program related to information technology improvements were recovered over a 5-year period that began January 1, 2011. PECO earns a return on the recovery of information technology costs. The PECO transmission costs represent the electric transmission costs recoverable (refundable) under the TSC under which PECO earns interest on under-recovered costs and pays interest on over-recovered costs to customers. As of December 31, 2017, PECO's regulatory liability of $60 million included $36 million related to over-recovered costs under the DSP program, $12 million related to over-recovered non-bypassable transmission service charges and $12 million related to the over-recovered natural gas costs under the PGC. As of December 31, 2016, PECO's regulatory liability of $56 million included $34 million related to over-recovered costs under the DSP program, $10 million related to over-recovered non-bypassable transmission service charges, $8 million related to the over-recovered natural gas costs under the PGC and $4 million related to over-recovered electric transmission costs.
The BGE energy costs represent the electric supply, gas supply, and transmission related costs recoverable (refundable) from (to) customers under BGE’s market-based SOS program, MBR program, and FERC approved transmission rates, respectively. BGE earns or pays interest to customers on under-recovered or over-recovered FERC transmission formula-related costs. BGE does not earn or pay interest to customers on under-recovered or over-recovered SOS and MBR costs. The recovery or refund period is a twelve-month period beginning in June of the following calendar year. As of December 31, 2017, BGE's regulatory asset of $23 million included $7 million of costs associated with transmission costs recoverable through its FERC approved formula rate, $5 million related to under-recovered electric energy costs, $3 million of abandonment costs to be recovered upon FERC approval, and $8 million related to under-recovered natural gas costs. As of December 31, 2016, BGE’s regulatory asset of $38 million included $4 million of costs associated with transmission costs recoverable through its FERC approved formula rate, $28 million related to under-recovered electric energy costs, $3 million of abandonment costs to be recovered upon FERC approval and $3 million related to under-recovered natural gas costs.
The Pepco energy costs represent the electric supply and transmission related costs recoverable (refundable) from (to) customers under Pepco’s market-based SOS program and FERC approved transmission rates. Pepco earns or pays interest to customers on under-recovered or over-recovered FERC transmission formula-related costs. Pepco does not earn or pay interest to customers on under- or over-recovered SOS costs. The asset is being amortized and recovered over the life of the associated assets. As of December 31, 2017, Pepco's regulatory asset of $11 million included $3 million of transmission costs recoverable through its FERC approved formula rate and $8 million of under-recovered electric energy costs. As of December 31, 2017, Pepco's regulatory liability was zero. As of December 31, 2016, Pepco's regulatory asset of $6 million related to under-recovered electric energy costs. As of December 31, 2016, Pepco's regulatory liability of $8 million included $5 million of over-recovered transmission costs and $3 million of over-recovered electric energy costs.
The DPL energy costs represent the electric supply, gas supply, and transmission related costs recoverable (refundable) from (to) customers under DPL’s market-based SOS program, GCR and FERC approved transmission rates. DPL earns or pays interest to customers on under-recovered or over-recovered FERC transmission formula-related costs. In Delaware, DPL earns interest on under-recovered costs and pays interest to customers on over-recovered SOS and GCR costs. In Maryland, DPL does not earn or pay interest to customers on under- or over-recovered SOS costs. The asset is being amortized and recovered over the life of the associated assets. As of December 31, 2017, DPL's regulatory asset of $15 million included $8 million of transmission costs recoverable through its FERC approved formula rate and $7 million of under-recovered electric energy costs. As of December 31, 2017, DPL's regulatory liability of $1 million related to over-recovered electric energy costs. As of December 31, 2016, DPL's regulatory asset of $5 million included $1 million of transmission costs recoverable through its FERC approved formula rate and $4 million of under-recovered electric energy

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
costs. As
Line ItemDescriptionEnd Date of Remaining Recovery/Refund PeriodReturn
COVID-19Represents incremental credit losses and direct costs related to COVID-19 incurred primarily in 2020 at the Utility Registrants, partially offset by a decrease in travel costs at BGE, Pepco and DPL. Direct costs consisted primarily of costs to acquire personal protective equipment, costs for cleaning supplies and services, and costs to hire healthcare professionals to monitor the health of employees.
ComEd - 2025

BGE - $4 million - 2025; $4 million to be determined in the next multi-year plan filed with MDPSC

PECO - 2024

Pepco (District of Columbia) - $8 million to be determined in the next multi-year plan filed with DCPSC

Pepco (Maryland) - $1 million - 2026; $1 million to be determined in the next multi-year plan filed with MDPSC

DPL (Maryland) - $1 million - 2027

DPL (Delaware) - $2 million to be determined in pending distribution rate case filed with DEPSC
ComEd and BGE - Yes

PECO, Pepco, and DPL - No
Under-recovered credit loss expenseFor ComEd and ACE, amounts represent the difference between annual credit loss expense and revenues collected in rates through ICC and NJBPU-approved riders. The difference between net credit loss expense and revenues collected through the rider each calendar year for ComEd is recovered over a twelve-month period beginning in June of the following calendar year. ACE intends to recover from June through May of each respective year, subject to approval of the NJBPU.ComEd - 2024

ACE - To be determined in next Societal Benefits Rider filing with NJBPU
No
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Table of December 31, 2016, DPL's regulatory liability of $5 million included $2 million of over-recovered electric energy costs and $3 million of over-recovered transmission costs.
The ACE energy costs represent the electric supply and transmission related costs recoverable (refundable) from (to) customers under ACE’s market-based BGS program and FERC approved transmission rates. ACE earns or pays interest to customers on under-recovered or over-recovered FERC transmission formula-related costs. ACE earns interest on under-recovered and pays interest to customers on over-recovered BGS costs. As of December 31, 2017, ACE's regulatory asset of $26 million included $11 million of transmission costs recoverable through its FERC approved formula rate and $15 million of under-recovered electric energy costs. As of December 31, 2017, ACE's regulatory liability of $3 million related to over-recovered electric energy costs. As of December 31, 2016, ACE's regulatory asset of $17 million included $6 million of transmission costs recoverable through its FERC approved formula rate and $11 million of under-recovered electric energy costs. As of December 31, 2016, ACE's regulatory liability of $5 million included $4 million of over-recovered transmission costs and $1 million of over-recovered electric energy costs.
Deferred storm costs. In the MDPSC’s March 2011 rate order, BGE was authorized to defer $16 million in storm costs incurred in February 2010. BGE earns a return on this regulatory asset and the original recovery period of five years was extended for an additional 25 months, in accordance with the MDPSC 2014 electric and natural gas distribution rate case order. This regulatory asset has now been fully amortized as of December 31, 2017.
For Pepco, DPL and ACE, amounts represent total incremental storm restoration costs incurred for repair work due to major storm events in 2017, 2016, 2015, 2012 and 2011 recoverable from customers in the Maryland and New Jersey jurisdictions. These incremental storm restoration costs are amortized over a three or five year period dependent on jurisdiction.
Electric generation-related regulatory asset. As a result of the deregulation of electric generation, BGE ceased to meet the requirements for accounting for a regulated business for the previous electric generation portion of its business. As a result, BGE wrote-off its entire individual, generation-related regulatory assets and liabilities and established a single, generation-related regulatory asset to be collected through its regulated rates, which is being amortized on a basis that approximates the pre-existing individual regulatory asset amortization schedules. The portion of this regulatory asset that does not earn a regulated rate of return was $9 million as of December 31, 2016. This regulatory asset has now been fully amortized as of December 31, 2017.
Rate stabilization deferral. In June 2006, Senate Bill 1 was enacted in Maryland and imposed a rate stabilization measure that capped rate increases by BGE for residential electric customers at 15% from July 1, 2006, to May 31, 2007. As a result, BGE recorded a regulatory asset on its Consolidated Balance Sheets equal to the difference between the costs to purchase power and the revenues collected from customers, as well as related carrying charges based on short-term interest rates from July 1, 2006 to May 31, 2007. In addition, as required by Senate Bill 1, the MDPSC approved a plan that allowed residential electric customers the option to further defer the transition to market rates from June 1, 2007 to January 1, 2008. During 2007, BGE deferred $306 million of electricity purchased for resale expenses and certain applicable carrying charges, which are calculated using the implied interest rates of the rate stabilization bonds, as a regulatory asset related to the rate stabilization plans. During 2017 and 2016, BGE recovered $7 million and $81 million, respectively, of electricity purchased for resale expenses and carrying charges related to the rate stabilization plan regulatory asset. BGE began amortizing the regulatory asset associated with the deferral which ended in May 2007 to earnings over a period not to exceed ten years when collection from customers began in June 2007. This regulatory asset has now been fully amortized as of December 31, 2017.
Energy efficiency and demand response programs. For ComEd, these amounts represent over recoveries related to ComEd’s ICC-approved Energy Efficiency and Demand Response Plan under

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 3 — Regulatory Matters
Line ItemDescriptionEnd Date of Remaining Recovery/Refund PeriodReturn
Renewable portfolio standards costsRepresents an overcollection of funds from both ComEd customers and alternative retail electricity suppliers to be spent on future renewable energy procurements.
$743 million to be determined in the ICC annual reconciliation for 2023

$67 million to be determined based on the LTRRPP developed by the IPA
No
Dedicated facilities chargeRepresents the timing difference between the recovery of certain transmission-related assets and their depreciable life.Depreciable life of the related assetsYes
Decommissioning the energy efficiency rate rider cancelled on June 2, 2017. ComEd expects to refund these over recoveries in future rates. ComEd earns a return onRegulatory Agreement Units
The regulatory agreements with the capital investment incurred under the program, but does not earn or pay a return or interest on under or over recoveries, respectively. For PECO, these amounts represent over recoveries of program costs related to both Phase IIICC and Phase III of its PAPUC-approved EE&C Plan. PECO began recovering the costs of its Phase II and Phase III EE&C Plans through a surcharge in June 2013 and June 2016, respectively, based on projected spending under the programs. Phase II of the program began on June 1, 2013 and expired on May 31, 2016. Phase III of the program began on June 1, 2016 and will expire on May 31, 2021. PECO earns a return on the capital portion of the EE&C Plan. For BGE, these amounts represent under (over) recoveries related to BGE’s Smart Energy Savers Program®, which includes both MDPSC-approved demand response and energy efficiency programs. For the BGE Peak RewardsSMdemand response program which began in January 2008, actual marketing and customer bonus costs incurred in the demand response program are being recovered over a 5-year amortization period from the date incurred pursuant to an order by the MDPSC. Fixed assetsPAPUC dictate obligations related to the demand response program are recovered overshortfall or excess of NDT funds necessary for decommissioning the lifeformer ComEd units on a unit-by-unit basis and the former PECO units in total.
For the former PECO units, given the symmetric settlement provisions that allow for continued recovery of the equipment. Also includeddecommissioning costs from PECO customers in the demand response program are customer bill creditsevent of a shortfall and the obligation for Constellation to ultimately return excess funds to PECO customers (on an aggregate basis for all seven units), decommissioning-related activities prior to separation on February 1, 2022 were generally offset in Exelon’s Consolidated Statements of Operations and Comprehensive Income with an offsetting adjustment to the regulatory liabilities or regulatory assets and an equal noncurrent affiliate receivable from or payable to Generation at PECO. Following the separation, decommissioning-related activities result in an adjustment to the Receivable related to BGE’s Smart Energy Rewards program which began in July 2013Regulatory Agreement Units and an equal adjustment to the regulatory liabilities or regulatory assets at PECO.
For the former ComEd units, given no further recovery from ComEd customers is permitted and Constellation retains an obligation to ultimately return excess funds to ComEd customers (on a unit-by-unit basis), to the extent excess funds are being recovered through the surcharge. Actual costs incurredexpected for each unit, decommissioning-related activities prior to separation on February 1, 2022 were offset in the energy efficiency program are being amortized over a 5-year periodConsolidated Statements of Operations and Comprehensive Income with recovery beginningan offsetting adjustment to regulatory liabilities and noncurrent affiliate receivable from Generation at ComEd. Following the separation, decommissioning-related activities result in 2010 pursuantan adjustment to an order by the MDPSC. BGE earns a rate of return on the capital investments and deferred costs incurred under the program and earns (pays) interest on under (over) collections.
For Pepco, DPL and ACE, amounts represent recoverable costs associated with customer direct load control and energy efficiency and conservation programs in all jurisdictions that are being recovered from customers. These programs are designed to reduce customers’ energy consumption. Pepco Maryland and DPL Maryland energy efficiency program costs are recovered over 5 years and the direct load control program costs are recovered over 5 years and 15 years, depending on the type.  ACE costs are recovered over 10 years. Pepco, DPL and ACE earn a return on these regulatory assets.
Merger integration costs. These amounts include integration costs to achieve distribution synergiesReceivable related to the Constellation merger transaction. As a result of the MDPSC’s February 2013 rate order, BGE deferred $8 million related to non-severance merger integration costs incurred during 2012 and the first quarter of 2013. Of these costs, $4 million was authorized to be amortized over a 5-year period that began in March 2013. The recovery of the remaining $4 million was deferred. In the MDPSC’s December 2013 rate order, BGE was authorized to recover the remaining $4 millionRegulatory Agreement Units and an additional $4 million of non-severance merger integration costs incurred during 2013. These costs are being amortized over a 5-year period that began in December 2013. BGE is earning a return on this regulatory asset.
These amounts also include integration costs to achieve distribution synergies relatedequal adjustment to the PHI acquisition. Asregulatory liabilities at ComEd. However, given the asymmetric settlement provision that does not allow for continued recovery from ComEd customers in the event of December 31, 2017 and 2016, BGE'sa shortfall, recognition of a regulatory asset at ComEd is not permissible.
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Table of $6 million and $10 million, respectively, included $4 million and $6 million, respectively, of previously incurred PHI integration costs as authorized by the June 2016 rate case order. As of December 31, 2017, Pepco’s regulatory asset of $20 million represents previously incurred PHI integration costs, including $11 million authorized for recovery in Maryland and $9 million expected to be recovered in the District of Columbia service territory. As of December 31, 2016, Pepco's regulatory asset of $11 million represents previously incurred PHI integration costs authorized for recovery in Maryland.  As of December 31, 2017, DPL’s regulatory asset of $10 million represents previously incurred PHI integration costs, including $4 million authorized for recovery in Maryland, $5 million authorized for recovery in Delaware electric rates, and $1 million expected to be recovered in electric and gas rates in the Maryland and Delaware service territories. As of December 31, 2016, DPL's regulatory asset of $4 million represents previously incurred PHI integration costs expected to be recovered in the Maryland service territory. As of December 31, 2017, ACE’s regulatory asset of $9 million represents previously incurred PHI integration costs expected to be recovered in the New Jersey service territory. Pepco and DPL are earning a return on the regulatory

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


assets being recovered in Maryland and these costs are being amortized over five years.  DPL is earning a return on the regulatory asset being recovered in Delaware and the cost is being amortized over five years.  Amounts deferred for Pepco in the District of Columbia and ACE in New Jersey do not earn a return.
Under (Over)-recovered electric and gas revenue decoupling. For BGE, these amounts represent the electric and gas distribution costs recoverable from or (refundable) to customers under BGE’s decoupling mechanisms and are being recovered over the life of the associated assets. As of December 31, 2017, BGE had a regulatory asset of $10 million related to under-recovered electric revenue decoupling and $4 million related to under-recovered natural gas revenue decoupling. As of December 31, 2016, BGE had a regulatory asset of $2 million related to under-recovered natural gas revenue decoupling and $1 million related to under-recovered electric revenue decoupling.
For Pepco and DPL, these amounts represent the electric distribution costs recoverable from customers under Pepco's Maryland and District of Columbia decoupling mechanisms and DPL's Maryland decoupling mechanism. Pepco and DPL earn a return on these regulatory assets.
COPCO acquisition adjustment. On July 19, 2007, the MDPSC issued an order which provided for the recovery of a portion of DPL’s goodwill. As a result of this order, $41 million in DPL goodwill was transferred to a regulatory asset. In February 2017 the MDPSC ruled that the remaining amortization be extended for an additional three years, and this item is now amortized from August 2007 through February 2020. DPL earns a return on these regulatory assets.
Workers compensation and long-term disability costs. These amounts represent accrued workers’ compensation and long-term disability costs for Pepco, which are recoverable from customers when actual claims are paid to employees. The recovery period for these regulatory assets is over the life of the associated assets.
Vacation accrual. These amounts represent accrued vacation costs for PECO, DPL and ACE. PECO, DPL and ACE and the costs are recoverable from customers when actual payments are made to employees or when vacation is taken.
Securitized stranded costs. These amounts represent certain contract termination payments under a contract between ACE and an unaffiliated non-utility generator and costs associated with the regulated operations of ACE’s electricity generation business that are no longer recoverable through customer rates (collectively referred to as “stranded costs”). The stranded costs are amortized over the life of Transition Bonds issued by Atlantic City Electric Transition Funding LLC (ACE Funding) to securitize the recoverability of these stranded costs. These bonds mature between 2018 and 2023. A customer surcharge is collected by ACE to fund principal and interest payments on the Transition Bonds. PHI earns a return on these regulatory assets.
CAP arrearage. These amounts represent the guaranteed recovery of PECO's previously incurred bad debt expense associated with the eligible CAP accounts receivable balances under the IPAF Program as provided by the 2015 electric distribution rate case settlement.  These costs are amortized as recovery is received through a combination of customer payments over the duration of the five-year payment agreement term and rate recovery, including through future rate cases if necessary. 
Removal costs. These amounts represent funds ComEd, BGE, PHI, Pepco, DPL and ACE have received from customers through depreciation rates to cover the future non-legally required cost of removal of property, plant and equipment which reduces rate base for ratemaking purposes. This liability is reduced as costs are incurred. PHI, Pepco, DPL, and ACE have a regulatory asset which represents removal costs incurred in excess of amounts received from customers through depreciation rates recoverable from ratepayers. The recovery period of these regulatory assets is over the life of the associated assets.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)Note 3 — Regulatory Matters

DC PLUG charge.  On November 9, 2017, the DCPSC issued an order approving the First Biennial Plan and the application for a financing order.  As a result, Pepco's obligation of $187 million will be recovered from customers and therefore, a $187 million regulatory asset was established. Pepco will recover $60 million over a two-year period and the remainder will be recovered based on future biennial plans filed with the DCPSC. In addition, $3 million of previously deferred costs from the first Triennial Plan were approved for recovery from customers over a one year recovery period.
Nuclear decommissioning. These amounts represent estimated future nuclear decommissioning costs for the Regulatory Agreement Units that exceed (regulatory asset) or are less than (regulatory liability) the associated decommissioning trust fund assets. Exelon believes the trust fund assets, including prospective earnings thereon and any future collections from customers, will be sufficient to fund the associated future decommissioning costs at the time of decommissioning. See Note 15 — Asset Retirement Obligations for additional information.
Deferred rent. Represents the regulatory liability recorded at Exelon and PHI for deferred rent related to a lease. The costs of the lease are recoverable through the ratemaking process at Pepco, DPL and ACE.
DLC program costs. The DLC program costs include equipment, installation, and information technology costs necessary to implement the DLC Program under PECO’s EE&C Phase I Plans. PECO received full cost recovery through Phase I collections and will amortize the costs as a credit to the income statement to offset the related depreciation expense during the same period through September 2025, which is the remaining useful life of the assets.
Electric distribution tax repairs. PECO’s 2010 electric distribution rate case settlement required that the expected cash benefit from the application of Revenue Procedure 2011-43, which was issued on August 19, 2011, to prior tax years be refunded to customers over a seven-year period. Credits began being reflected in customer bills on January 1, 2012. PECO's 2015 electric distribution rate case settlement requires PECO to pay interest on the unamortized balance of the tax-effected catch-up deduction beginning January 1, 2016.
Gas distribution tax repairs. PECO’s 2010 natural gas distribution rate case settlement required that the expected cash benefit from the application of new tax repairs deduction methodologies for 2010 and prior tax years be refunded to customers over a seven-year period. In September 2012, PECO filed an application with the IRS to change its method of accounting for gas distribution repairs for the 2011 tax year. Credits began being reflected in customer bills on January 1, 2013. No interest will be paid to customers.
Renewable portfolio standards costs. Beginning June 1, 2017, ComEd recovers all costs associated with purchasing renewable energy credits through a new tariff rate rider that provides for a reconciliation and true-up to actual costs, with any difference to be credited to or collected from ComEd's retail customers in subsequent periods with interest. In addition, this balance includes the over recovery of renewable energy credits associated with RPS alternative compliance payments recovered under supply base rates. These collections were required under the Illinois Public Utilities Act to be used for renewable energy purchases in accordance with ICC procurement orders. The amortization period is in accordance with the applicable ICC procurement orders.
Zero emission credit costs. Beginning June 1, 2017, ComEd recovers all costs associated with purchasing ZECs through a new tariff rate rider that provides for an annual reconciliation and true-up to actual costs incurred by ComEd to purchase ZECs, with any difference to be credited to or collected from ComEd's retail customers in subsequent periods with interest.
Over-recovered uncollectible accounts. These amounts represent the difference between ACE's annual uncollectible accounts expense and revenues collected in rates through an NJBPU-approved

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

rider. The difference between GAAP uncollectible expense and revenues collected through the rider each calendar year is recovered or refunded over a twelve-month period beginning in June of the following calendar year.
Capitalized Ratemaking Amounts Not Recognized (Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE)
The following table illustrates ourpresents authorized amounts capitalized for ratemaking purposes related to earnings on shareholders’ investment that are not recognized for financial reporting purposes on ourin the Registrants' Consolidated Balance Sheets. These amounts will be recognized as revenues in ourthe related Consolidated Statements of Operations and Comprehensive Income in the periods they are billable to ourthe Utility Registrants' customers.
         Successor      
 Exelon 
ComEd(a)
 PECO 
BGE(b)
 PHI 
Pepco(c)
 
DPL(c)
 ACE
December 31, 2017$69
 $6
 $
 $53
 $10
 $6
 $4
 $
                
December 31, 2016$72
 $5
 $
 $57
 $10
 $6
 $4
 $
Exelon
ComEd(a)
PECO
BGE(b)
PHI
Pepco(c)
DPL(c)
ACE(b)
December 31, 2022$57 $$— $28 $21 $18 $$
December 31, 202143 — 37 — 
__________
(a)Reflects ComEd's unrecognized equity returns earned for ratemaking purposes on its under-recovered distribution services costs regulatory assets.
(b)BGE's authorized amounts capitalized for ratemaking purposes primarily relate to earnings on shareholders' investment on its AMI programs
(c)Pepco's and DPL's authorized amounts capitalized for ratemaking purposes relate to earnings on shareholders' investment on their respective AMI Programs and Energy Efficiency and Demand Response Programs. The earnings on energy efficiency are on Pepco DC and DPL DE programs only.

(a)Reflects ComEd's unrecognized equity returns earned for ratemaking purposes on its electric distribution formula rate regulatory assets.
(b)BGE's and ACE's authorized amounts capitalized for ratemaking purposes primarily relate to earnings on shareholders' investment on their respective AMI programs.
(c)Pepco's and DPL's authorized amounts capitalized for ratemaking purposes relate to earnings on shareholders' investment on their respective AMI Programs and Energy Efficiency and Demand Response Programs, and for Pepco District of Columbia revenue decoupling program. The earnings on energy efficiency are on Pepco District of Columbia and DPL Delaware programs only.

4. Revenue from Contracts with Customers (All Registrants)
The Registrants recognize revenue from contracts with customers to depict the transfer of goods or services to customers at an amount that the entities expect to be entitled to in exchange for those goods or services. The primary sources of revenue include regulated electric and gas tariff sales, distribution, and transmission services. The performance obligations, revenue recognition, and payment terms associated with these sources of revenue are further discussed in the table below. There are no significant financing components for these sources of revenue and no variable consideration.
Unless otherwise noted, for each of the significant revenue categories and related performance obligations described below, the Registrants have the right to consideration from the customer in an amount that corresponds directly with the value transferred to the customer for the performance completed to date. Therefore, the Registrants generally recognize revenue in the amount for which they have the right to invoice the customer. As a result, there are generally no significant judgments used in determining or allocating the transaction price.
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Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 4 — Revenue from Contracts with Customers
Purchase
Revenue SourceDescriptionPerformance ObligationTiming of Revenue RecognitionPayment Terms
Regulated Electric and Gas Tariff SalesSales of electricity and electricity distribution services (the Utility Registrants) and natural gas and gas distribution services (PECO, BGE, and DPL) to residential, commercial, industrial, and governmental customers through regulated tariff rates approved by state regulatory commissions.Delivery of electricity and/or natural gas.
Over time (each day) as the electricity and/or natural gas is delivered to customers. Tariff sales are generally considered daily contracts as customers can discontinue service at any time. (a)
Within the month following delivery of the electricity or natural gas to the customer.
Regulated Transmission ServicesThe Utility Registrants provide open access to their transmission facilities to PJM, which directs and controls the operation of these transmission facilities and accordingly compensates the Utility Registrants pursuant to filed tariffs at cost-based rates approved by FERC.Various including (i) Network Integration Transmission Services (NITS), (ii) scheduling, system control and dispatch services, and (iii) access to the wholesale grid.
Over time utilizing output methods to measure progress towards completion. (b)
Paid weekly by PJM.
__________
(a)Electric and natural gas utility customers have the choice to purchase electricity or natural gas from competitive electric generation and natural gas suppliers. While the Utility Registrants are required under state legislation to bill their customers for the supply and distribution of Receivables Programs (Exelon, ComEd, PECO, BGE,electricity and/or natural gas, they recognize revenue related only to the distribution services when customers purchase their electricity or natural gas from competitive suppliers.
(b)Passage of time is used for NITS and access to the wholesale grid and MWhs of energy transported over the wholesale grid is used for scheduling, system control and dispatch services.
The Utility Registrants do not incur any material costs to obtain or fulfill contracts with customers.
Contract Liabilities
The Registrants record contract liabilities when consideration is received or due prior to the satisfaction of the performance obligations. The Registrants record contract liabilities in Other current liabilities and Other noncurrent liabilities in the Registrants' Consolidated Balance Sheets.
On July 1, 2020, Pepco, DPL, and ACE each entered into a collaborative arrangement with an unrelated owner and manager of communication infrastructure (the Buyer). Under this arrangement, Pepco, DPL, and ACE sold a 60% undivided interest in their respective portfolios of transmission tower attachment agreements with telecommunications companies to the Buyer, in addition to transitioning management of the day-to-day operations of the jointly-owned agreements to the Buyer for 35 years, while retaining the safe and reliable operation of its utility assets. In return, Pepco, DPL, and ACE will provide the Buyer limited access on the portion of the towers where the equipment resides for the purposes of managing the agreements for the benefit of Pepco, DPL, ACE, and the Buyer. In addition, for an initial period of three years and two, two-year extensions that are subject to certain conditions, the Buyer has the exclusive right to enter into new agreements with telecommunications companies and to receive a 30% undivided interest in those new agreements. PHI, Pepco, DPL, and ACE)ACE received cash and recorded contract liabilities as of July 1, 2020. The revenue attributable to this arrangement will be recognized as operating revenue over the 35 years under the collaborative arrangement.
The following table provides a rollforward of the contract liabilities reflected in Exelon's, PHI's, Pepco's, DPL's, and ACE'S Consolidated Balance Sheets. As of December 31, 2022, 2021, and 2020, ComEd's, PECO's, and BGE's contract liabilities were not material.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 4 — Revenue from Contracts with Customers
Exelon(a)
PHI(a)
Pepco(a)
DPL(a)
ACE(a)
Balance as of December 31, 2020$118 $118 $94 $12 $12 
Revenues recognized(9)(9)(7)(1)(1)
Balance as of December 31, 2021109 109 87 11 11 
Revenues recognized(8)(8)(6)(1)(1)
Balance as of December 31, 2022$101 $101 $81 $10 $10 
__________
(a)Revenues recognized in the years ended December 31, 2022 and 2021, were included in the contract liabilities at December 31, 2021 and 2020, respectively.
Transaction Price Allocated to Remaining Performance Obligations
The following table shows the amounts of future revenues expected to be recorded in each year for performance obligations that are unsatisfied or partially unsatisfied as of December 31, 2022. This disclosure only includes contracts for which the total consideration is fixed and determinable at contract inception. The average contract term varies by customer type and commodity but ranges from one month to several years.
This disclosure excludes the Utility Registrants' gas and electric tariff sales contracts and transmission revenue contracts as they generally have an original expected duration of one year or less and, therefore, do not contain any future, unsatisfied performance obligations to be included in this disclosure.
20232024202520262027 and thereafterTotal
Exelon$$$$$77 $101 
PHI77 101 
Pepco60 81 
DPL— — — 10 
ACE— — 10 
Revenue Disaggregation
The Registrants disaggregate revenue recognized from contracts with customers into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. See Note 5 — Segment Information for the presentation of the Registrant's revenue disaggregation.

5. Segment Information (All Registrants)
Operating segments for each of the Registrants are determined based on information used by the CODMs in deciding how to evaluate performance and allocate resources at each of the Registrants.
Exelon has six reportable segments, which include ComEd, PECO, BGE, and PHI's three reportable segments consisting of Pepco, DPL, and ACE. ComEd, PECO, BGE, Pepco, DPL, and ACE each represent a single reportable segment, and as such, no separate segment information is provided for these Registrants. Exelon, ComEd, PECO, BGE, Pepco, DPL, and ACE's CODMs evaluate the performance of and allocate resources to ComEd, PECO, BGE, Pepco, DPL, and ACE based on net income.
The separation of Constellation Energy Corporation, including Generation and its subsidiaries, meets the criteria for discontinued operations and as such, results of operations are presented as discontinued operations and have been excluded from continuing operations for all periods presented. Furthermore, the reportable segment information related to the discontinued operations has been excluded from the tables presented below. See Note 2 — Discontinued Operations for additional information.
An analysis and reconciliation of the Registrants' reportable segment information to the respective information in the consolidated financial statements for the years ended December 31, 2022, 2021, and 2020 is as follows:
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(Dollars in millions, except per share data unless otherwise noted)

Note 5 — Segment Information
ComEdPECOBGEPHI
Other(a)
Intersegment
Eliminations
Exelon
Operating revenues(b):
2022
Electric revenues$5,761 $3,165 $2,871 $5,317 $— $(31)$17,083 
Natural gas revenues— 738 1,024 238 — (5)1,995 
Shared service and other revenues— — — 10 1,823 (1,833)— 
Total operating revenues$5,761 $3,903 $3,895 $5,565 $1,823 $(1,869)$19,078 
2021
Electric revenues$6,406 $2,659 $2,505 $4,860 $— $(35)$16,395 
Natural gas revenues— 539 836 168 — — 1,543 
Shared service and other revenues— — — 13 2,213 (2,226)— 
Total operating revenues$6,406 $3,198 $3,341 $5,041 $2,213 $(2,261)$17,938 
2020
Electric revenues$5,904 $2,543 $2,336 $4,485 $— $(44)$15,224 
Natural gas revenues— 515 762 162 — — 1,439 
Shared service and other revenues— — — 16 2,035 (2,051)— 
Total operating revenues$5,904 $3,058 $3,098 $4,663 $2,035 $(2,095)$16,663 
Intersegment revenues(c):
2022$16 $$15 $10 $1,823 $(1,865)$
202141 21 31 13 2,203 (2,252)57 
202037 20 17 2,024 (2,084)23 
Depreciation and amortization:
2022$1,323 $373 $630 $938 $61 $— $3,325 
20211,205 348 591 821 67 3,033 
20201,133 347 550 782 79 — 2,891 
Operating expenses:
2022$4,218 $3,102 $3,376 $4,734 $2,093 $(1,762)$15,761 
20215,151 2,547 2,860 4,240 2,045 (1,587)15,256 
20204,950 2,512 2,598 4,045 1,882 (1,502)14,485 
Interest expense, net:
2022$414 $177 $152 $292 $415 $(3)$1,447 
2021389 161 138 267 335 (1)1,289 
2020382 147 133 268 380 (3)1,307 
Income taxes:
2022$264 $79 $$$— $(11)$349 
2021172 12 (35)42 (161)38 
2020177 (30)41 (77)35 (153)(7)
Net income (loss) from continuing operations:
2022$917 $576 $380 $608 $(393)$(34)$2,054 
2021742 504 408 561 (156)(443)1,616 
2020438 447 349 495 (184)(446)1,099 
Capital expenditures:
2022$2,506 $1,349 $1,262 $1,709 $95 $— $6,921 
20212,387 1,240 1,226 1,720 67 — 6,640 
20202,217 1,147 1,247 1,604 74 — 6,289 
Total assets:
2022$39,661 $14,502 $13,350 $26,082 $6,014 $(4,260)$95,349 
202136,470 13,824 12,324 24,744 7,626 (8,319)86,669 
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(Dollars in millions, except per share data unless otherwise noted)

Note 5 — Segment Information
__________
(a)Other primarily includes Exelon’s corporate operations, shared service entities, and other financing and investment activities.
(b)Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 22 — Supplemental Financial Information for additional information on total utility taxes.
(c)See Note 23 — Related Party Transactions for additional information on intersegment revenues.
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(Dollars in millions, except per share data unless otherwise noted)

Note 5 — Segment Information
PHI:
PepcoDPLACE
Other(a)
Intersegment
Eliminations
PHI
Operating revenues(b):
2022
Electric revenues$2,531 $1,357 $1,431 $— $(2)$5,317 
Natural gas revenues— 238 — — — 238 
Shared service and other revenues— — — 391 (381)10 
Total operating revenues$2,531 $1,595 $1,431 $391 $(383)$5,565 
2021
Electric revenues$2,274 $1,212 $1,388 $— $(14)$4,860 
Natural gas revenues— 168 — — — 168 
Shared service and other revenues— — — 379 (366)13 
Total operating revenues$2,274 $1,380 $1,388 $379 $(380)$5,041 
2020
Electric revenues$2,149 $1,109 $1,245 $— $(18)$4,485 
Natural gas revenues— 162 — — — 162 
Shared service and other revenues— — — 372 (356)16 
Total operating revenues$2,149 $1,271 $1,245 $372 $(374)$4,663 
Intersegment revenues(c):
2022$$$$380 $(383)$10 
2021380 (381)13 
2020372 (375)17 
Depreciation and amortization:
2022$417 $232 $261 $28 $— $938 
2021403 210 179 29 — 821 
2020377 191 180 34 — 782 
Operating expenses:
2022$2,140 $1,359 $1,225 $393 $(383)$4,734 
20211,871 1,161 1,201 388 (381)4,240 
20201,799 1,120 1,123 378 (375)4,045 
Interest expense, net:
2022$150 $66 $66 $$$292 
2021140 61 58 — 267 
2020138 61 59 10 — 268 
Income taxes:
2022$(9)$14 $$$— $
202115 42 (13)(2)— 42 
2020(7)(25)(41)(4)— (77)
Net income (loss):
2022$305 $169 $148 $(14)$— $608 
2021296 128 146 (9)— 561 
2020266 125 112 (8)— 495 
Capital expenditures:
2022$874 $430 $398 $$— $1,709 
2021843 429 445 — 1,720 
2020773 424 401 — 1,604 
Total assets:
2022$10,657 $5,802 $4,979 $4,677 $(33)$26,082 
20219,903 5,412 4,556 4,933 (60)24,744 
__________
(a)Other primarily includes PHI’s corporate operations, shared service entities, and other financing and investment activities.
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Note 5 — Segment Information
(b)Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses in the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 22 — Supplemental Financial Information for additional information on total utility taxes.
(c)Includes intersegment revenues with ComEd, BGE, and PECO, which are eliminated at Exelon.
The following tables disaggregate the Registrants' revenues recognized from contracts with customers into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. For the Utility Registrants, the disaggregation of revenues reflects the two primary utility services of electric sales and natural gas sales (where applicable), with further disaggregation of these tariff sales provided by major customer groups. Exelon's disaggregated revenues are consistent with the Utility Registrants, but exclude any intercompany revenues.
2022
Revenues from contracts with customersComEdPECOBGEPHIPepcoDPLACE
Electric revenues
Residential$3,304 $2,026 $1,564 $2,590 $1,076 $750 $764 
Small commercial & industrial1,173 521 327 607 155 235 217 
Large commercial & industrial299 567 1,422 1,083 137 202 
Public authorities & electric railroads29 30 27 64 34 15 15 
Other(a)
955 271 398 695 208 227 252 
Total electric revenues(b)
$5,466 $3,147 $2,883 $5,378 $2,556 $1,364 $1,450 
Natural gas revenues
Residential$— $512 $678 $127 $— $127 $— 
Small commercial & industrial— 186 111 55 — 55 — 
Large commercial & industrial— — 183 12 — 12 — 
Transportation— 26 — 15 — 15 — 
Other(c)
— 12 68 29 — 29 — 
Total natural gas revenues(d)
$— $736 $1,040 $238 $— $238 $— 
Total revenues from contracts with customers$5,466 $3,883 $3,923 $5,616 $2,556 $1,602 $1,450 
Other revenues
Revenues from alternative revenue programs$267 $$(47)$(59)$(31)$(9)$(19)
Other electric revenues(e)
28 16 14 — 
Other natural gas revenues(e)
— — — — — 
Total other revenues$295 $20 $(28)$(51)$(25)$(7)$(19)
Total revenues for reportable segments$5,761 $3,903 $3,895 $5,565 $2,531 $1,595 $1,431 
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(Dollars in millions, except per share data unless otherwise noted)

Note 5 — Segment Information
2021
Revenues from contracts with customersComEdPECOBGEPHIPepcoDPLACE
Electric revenues
Residential$3,233 $1,704 $1,375 $2,441 $1,003 $694 $744 
Small commercial & industrial1,571 422 267 521 135 193 193 
Large commercial & industrial559 243 459 1,123 844 94 185 
Public authorities & electric railroads45 31 27 58 31 14 13 
Other(a)
926 229 371 634 205 201 229 
Total electric revenues(b)
$6,334 $2,629 $2,499 $4,777 $2,218 $1,196 $1,364 
Natural gas revenues
Residential$— $372 $518 $97 $— $97 $— 
Small commercial & industrial— 136 83 42 — 42 — 
Large commercial & industrial— — 147 — — 
Transportation— 24 — 14 — 14 — 
Other(c)
— 68 — — 
Total natural gas revenues(d)
$— $539 $816 $168 $— $168 $— 
Total revenues from contracts with customers$6,334 $3,168 $3,315 $4,945 $2,218 $1,364 $1,364 
Other revenues
Revenues from alternative revenue programs$42 $26 $12 $91 $53 $14 $24 
Other electric revenues(e)
30 11 — 
Other natural gas revenues(e)
— — — — — — 
Total other revenues$72 $30 $26 $96 $56 $16 $24 
Total revenues for reportable segments$6,406 $3,198 $3,341 $5,041 $2,274 $1,380 $1,388 
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(Dollars in millions, except per share data unless otherwise noted)

Note 5 — Segment Information
2020
Revenues from contracts with customersComEdPECOBGEPHIPepcoDPLACE
Electric revenues
Residential$3,090 $1,656 $1,345 $2,332 $988 $652 $692 
Small commercial & industrial1,399 386 241 472 132 171 169 
Large commercial & industrial515 228 406 1,001 736 89 176 
Public authorities & electric railroads45 29 27 60 34 13 13 
Other(a)
884 225 309 613 218 190 207 
Total electric revenues(b)
$5,933 $2,524 $2,328 $4,478 $2,108 $1,115 $1,257 
Natural gas revenues
Residential$— $361 $504 $96 $— $96 $— 
Small commercial & industrial— 126 79 42 — 42 — 
Large commercial & industrial— — 135 — — 
Transportation— 24 — 14 — 14 — 
Other(c)
— 29 — — 
Total natural gas revenues(d)
$— $515 $747 $162 $— $162 $— 
Total revenues from contracts with customers$5,933 $3,039 $3,075 $4,640 $2,108 $1,277 $1,257 
Other revenues
Revenues from alternative revenue programs$(47)$16 $16 $21 $40 $(7)$(12)
Other electric revenues(e)
18 — 
Other natural gas revenues(e)
— — — — — — 
Total other revenues$(29)$19 $23 $23 $41 $(6)$(12)
Total revenues for reportable segments$5,904 $3,058 $3,098 $4,663 $2,149 $1,271 $1,245 
__________
(a)Includes revenues from transmission revenue from PJM, wholesale electric revenue and mutual assistance revenue.
(b)Includes operating revenues from affiliates in 2022, 2021, and 2020 respectively of:
$16 million, $41 million, and $37 million at ComEd
$7 million, $20 million, and $8 million at PECO
$7 million, $13 million, and $10 million at BGE
$10 million, $13 million, and $17 million at PHI
$5 million, $5 million, and $7 million at Pepco
$6 million, $7 million, and $9 million at DPL
$2 million, $2 million, and $4 million at ACE
(c)Includes revenues from off-system natural gas sales.
(d)Includes operating revenues from affiliates in 2022, 2021, and 2020 respectively of:
less than $1 million, $1 million, and $1 million at PECO
$8 million, $18 million, and $10 million at BGE
(e)Includes late payment charge revenues.

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(Dollars in millions, except per share data unless otherwise noted)

Note 6 — Accounts Receivable
6. Accounts Receivable (All Registrants)
Allowance for Credit Losses on Accounts Receivable
The following tables present the rollforward of Allowance for Credit Losses on Customer Accounts Receivable.
Year Ended December 31, 2022
ExelonComEdPECOBGEPHIPepcoDPLACE
Balance as of December 31, 2021$320 $73 $105 $38 $104 $37 $18 $49 
Plus: Current period provision for expected credit losses(a)(b)
176 29 52 37 58 31 12 15 
Less: Write-offs, net(c)(d)(e) of recoveries(f)
169 43 52 21 53 21 23 
Balance as of December 31, 2022$327 $59 $105 $54 $109 $47 $21 $41 
Year Ended December 31, 2021
ExelonComEdPECOBGEPHIPepcoDPLACE
Balance as of December 31, 2020$334 $97 $116 $35 $86 $32 $22 $32 
Plus: Current period provision for expected credit losses96 21 23 15 37 13 18 
Less: Write-offs, net of recoveries110 45 34 12 19 10 
Balance as of December 31, 2021$320 $73 $105 $38 $104 $37 $18 $49 
_________
(a)For PECO, BGE, Pepco and DPL, the change in current period provision for expected credit losses is primarily a result of increased receivable balances.
(b)For ACE, the change in current period provision for expected credit losses is primarily a result of decreased receivable balances.
(c)For PECO, the change in write-offs is primarily a result of increased disconnection activities.
(d)For PHI, Pepco and ACE, the change in write-offs is primarily related to the termination of the moratoriums in the District of Columbia and New Jersey, which beginning in March 2020, prevented customer disconnections for non-payment. With disconnection activities restarting in January 2022, write-offs of aging accounts receivable increased during the year.
(e)For DPL, the change in write-offs is primarily a result of favorable customer payment behavior.
(f)Recoveries were not material to the Registrants.
The following tables present the rollforward of Allowance for Credit Losses on Other Accounts Receivable.
Year Ended December 31, 2022
ExelonComEdPECOBGEPHIPepcoDPLACE
Balance as of December 31, 2021$72 $17 $$$39 $16 $$15 
Plus: Current period provision (benefit) for expected credit losses26 11 (1)
Less: Write-offs, net of recoveries(a)
16 — — 
Balance as of December 31, 2022$82 $17 $$10 $46 $25 $$14 
Year Ended December 31, 2021
ExelonComEdPECOBGEPHIPepcoDPLACE
Balance as of December 31, 2020$71 $21 $$$33 $13 $$11 
Plus: Current period provision (benefit) for expected credit losses11 (2)(1)
Less: Write-offs, net of recoveries10 — — — — 
Balance as of December 31, 2021$72 $17 $$$39 $16 $$15 
_________
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 6 — Accounts Receivable
(a)Recoveries were not material to the Registrants.
Unbilled Customer Revenue
The following table provides additional information about unbilled customer revenues recorded in the Registrants' Consolidated Balance Sheets as of December 31, 2022 and 2021.
Unbilled customer revenues(a)
ExelonComEdPECOBGEPHIPepcoDPLACE
December 31, 2022$912 $223 $219 $247 $223 $103 $74 $46 
December 31, 2021747 240 161 171 175 82 53 40 
_________
(a)Unbilled customer revenues are classified in Customer accounts receivables, net in the Registrants' Consolidated Balance Sheets.
Other Purchases of Customer and Other Accounts Receivables
The Utility Registrants are required, under separate legislation and regulations in Illinois, Pennsylvania, Maryland, District of Columbia, and New Jersey, to purchase certain receivables from alternative retail electric and, as applicable, natural gas suppliers that participate in the utilities' consolidated billing. ComEd, BGE, Pepco and DPL purchase receivables at a discount primarily to recover uncollectible accounts expense from the suppliers. PECO is required to purchase receivables at face value and is permitted to recover uncollectible accounts expense, including those from Third Party Suppliers, from customers through distribution rates. ACE purchases receivables at face value. ACE recovers all uncollectible accounts expense, including those from Third Party Suppliers, through the Societal Benefits Charge (SBC) rider, which includes uncollectible accounts expense as a component.  The SBC is filed annually with the NJBPU. Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE do not record unbilled commodity receivables under the POR programs. Purchased billed receivables are classified in Other accounts receivable, net on Exelon’s, ComEd’s, PECO’s, BGE’s, PHI's, Pepco's, DPL's and ACE's Consolidated Balance Sheets. The following tables provide information aboutpresent the total receivables purchased.
Total receivables purchased
Exelon(a)
ComEd(a)
PECO(a)
BGE(a)
PHIPepcoDPLACE
Year ended December 31, 2022$3,981 $965 $1,081 $792 $1,143 $723 $205 $215 
Year ended December 31, 2021$3,840 $1,031 $1,041 $687 $1,081 $660 $217 $204 
_________
(a)For BGE, includes $4 million of receivables purchased receivables of those companies as offrom Generation prior to the separation on February 1, 2022 for the year ended December 31, 20172022. For ComEd, PECO, and BGE, includes $1 million, $1 million, and $21 million of receivables purchased from Generation, respectively, for the year ended December 31, 2016.2021.

200



         Successor      
As of December 31, 2017Exelon ComEd PECO BGE PHI Pepco DPL ACE
Purchased receivables$298
 $87
 $70
 $58
 $83
 $56
 $9
 $18
Allowance for uncollectible accounts (a)
(31) (14) (5) (3) (9) (5) (1) (3)
Purchased receivables, net$267
 $73
 $65
 $55

$74

$51

$8

$15
                
         Successor      
As of December 31, 2016Exelon ComEd PECO BGE PHI Pepco DPL ACE
Purchased receivables$313
 $87
 $72
 $59
 $95
 $63
 $10
 $22
Allowance for uncollectible accounts (a)
(37) (14) (6) (4) (13) (7) (2) (4)
Purchased receivables, net$276
 $73
 $66
 $55

$82

$56

$8

$18

__________
(a)For ComEd, BGE, Pepco and DPL, reflects the incremental allowance for uncollectible accounts recorded, which is in addition to the purchase discount. For ComEd, the incremental uncollectible accounts expense is recovered through its Purchase of Receivables with Consolidated Billing tariff.
4. Mergers, Acquisitions and Dispositions (Exelon, Generation, PHI, Pepco and DPL)
AcquisitionTable of James A. FitzPatrick Nuclear Generating Station (Exelon and Generation)
On March 31, 2017, Generation acquired the 842 MW single-unit James A. FitzPatrick (FitzPatrick) nuclear generating station located in Scriba, New York from Entergy Nuclear FitzPatrick LLC (Entergy) for a total purchase price of $289 million, which consisted of a cash purchase price of $110 million and a net cost reimbursement to and on behalf of Entergy of $179 million. As part of the acquisition agreements, Generation provided nuclear fuel and reimbursed Entergy for incremental costs to prepare for and conduct a plant refueling outage; and Generation reimbursed Entergy for incremental costs to operate and maintain the plant for the period after the refueling outage through the acquisition closing date. These reimbursements covered costs that Entergy otherwise would have avoided had it shut down the plant as originally intended in January 2017. The amounts reimbursed by Generation were offset by FitzPatrick's electricity and capacity sales revenues for this same post-outage period. As part of the transaction, Generation received the FitzPatrick NDT fund assets and assumed the obligation to decommission FitzPatrick. The NRC license for FitzPatrick expires in 2034. In 2017, the final purchase price consideration of $289 million (including $235 million of cash and $54 million of nuclear fuel) was remitted to and on behalf of Entergy.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


The fair values of FitzPatrick’s assets and liabilities were determined based on significant estimates and assumptions that are judgmental in nature, including projected future cash flows (including timing), discount rates reflecting risk inherent in the future cash flows and future power and fuel market prices. The valuations performed in the first quarter of 2017 to determine the fair value of the FitzPatrick assets acquired and liabilities assumed were preliminary. Accounting guidance provides that the allocation of the purchase price may be modified up to one year from the date of the acquisition to the extent that additional information is obtained about the facts and circumstances that existed as of the acquisition date.
During the third quarter of 2017, certain modifications were made to the initial preliminary valuation amounts for acquired property, plant and equipment, the decommissioning ARO, pension and OPEB obligations and related deferred tax liabilities, resulting in a $3 million net increase in assets acquired and liabilities assumed. Additionally, in the third quarter a purchase price settlement payment of $4 million was received from Entergy. These resulted in an adjustment to the after-tax bargain purchase gain recorded at Generation. For the year ended December 31, 2017, the after-tax bargain purchase gain of $233 million is included within Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income and primarily reflects differences in strategies between Generation and Entergy for the intended use and ultimate decommissioning of the plant. There are no further adjustments expected to be made to the allocation of the purchase price. See Note 15 - Asset Retirement Obligations and Note 16 - Retirement Benefits for additional information regarding the FitzPatrick decommissioning ARO and pension and OPEB updates.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table summarizes the final acquisition-date fair value of the consideration transferred and the assets and liabilities assumed for the FitzPatrick acquisition by Generation as of December 31, 2017:
Cash paid for purchase price $110
Cash paid for net cost reimbursement 125
Nuclear fuel transfer 54
Total consideration transferred $289
   
Identifiable assets acquired and liabilities assumed  
Current assets $60
Property, plant and equipment 298
Nuclear decommissioning trust funds 807
Other assets(a)
 114
Total assets $1,279
   
Current liabilities $6
Nuclear decommissioning ARO 444
Pension and OPEB obligations 33
Deferred income taxes 149
Spent nuclear fuel obligation 110
Other liabilities 15
Total liabilities $757
Total net identifiable assets, at fair value $522
   
Bargain purchase gain (after-tax) $233
_________
(a)Includes a $110 million asset associated with a contractual right to reimbursement from the New York Power Authority (NYPA), a prior owner of FitzPatrick, associated with the DOE one-time fee obligation. See Note 23-Commitments and Contingencies for additional background regarding SNF obligations to the DOE.
For the year ended December 31, 2017, Exelon and Generation incurred $57 million of merger and integration related costs which are included within Operating and maintenance expense in Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income.
Acquisition of ConEdison Solutions (Exelon and Generation)
On September 1, 2016, Generation acquired the competitive retail electricity and natural gas business of Consolidated Edison Solutions, Inc. (ConEdison Solutions), a subsidiary of Consolidated Edison, Inc. for a purchase price of $257 million including net working capital of $204 million. The renewable energy, sustainable services and energy efficiency businesses of ConEdison Solutions are excluded from the transaction.
The fair values of ConEdison Solutions' assets and liabilities were determined based on significant estimates and assumptions that are judgmental in nature, including projected future cash flows (including timing), discount rates reflecting risk inherent in the future cash flows and future power and fuel market prices. The purchase price equaled the estimated fair value of the net assets acquired and the liabilities

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

assumed and, therefore, no goodwill or bargain purchase was recorded as of the acquisition date. The purchase price allocation is now final.
The following table summarizes the final acquisition-date fair value of the consideration transferred and the assets and liabilities assumed for the ConEdison Solutions acquisition by Generation:
Total consideration transferred $257
   
Identifiable assets acquired and liabilities assumed  
Working capital assets $204
Property, plant and equipment 2
Mark-to-market derivative assets 6
Unamortized energy contract assets 100
Customer relationships 9
Other assets 1
Total assets $322
   
Mark-to-market derivative liabilities $65
Total liabilities $65
Total net identifiable assets, at fair value $257
Merger with Pepco Holdings, Inc. (Exelon)
Description of Transaction
On March 23, 2016, Exelon completed the merger contemplated by the Merger Agreement among Exelon, Purple Acquisition Corp., a wholly owned subsidiary of Exelon (Merger Sub) and Pepco Holdings, Inc. (PHI). As a result of that merger, Merger Sub was merged into PHI (the PHI Merger) with PHI surviving as a wholly owned subsidiary of Exelon and Exelon Energy Delivery Company, LLC (EEDC), a wholly owned subsidiary of Exelon which also owns Exelon's interests in ComEd, PECO and BGE (through a special purpose subsidiary in the case of BGE). Following the completion of the PHI Merger, Exelon and PHI completed a series of internal corporate organization restructuring transactions resulting in the transfer of PHI’s unregulated business interests to Exelon and Generation and the transfer of PHI, Pepco, DPL and ACE to a special purpose subsidiary of EEDC.
Regulatory Matters
Approval of the merger in Delaware, New Jersey, Maryland and the District of Columbia was conditioned upon Exelon and PHI agreeing to certain commitments including where applicable: customer rate credits, funding for energy efficiency and delivery system modernization programs, a green sustainability fund, workforce development initiatives, charitable contributions, renewable generation and other required commitments. In addition, the orders approving the merger in Delaware, New Jersey, and Maryland include a “most favored nation” provision which, generally, requires allocation of merger benefits proportionally across all the jurisdictions.
During the third and fourth quarters of 2016, Exelon and PHI filed proposals in Delaware, New Jersey and Maryland for amounts and allocations reflecting the application of the most favored nation provision, resulting in a total nominal cost of commitments of $513 million excluding renewable generation commitments (approximately $444 million on a net present value basis amount, excluding renewable

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

generation commitments and charitable contributions). These filings reflected agreements reached with certain parties to the merger proceedings in these jurisdictions. In 2016, the DPSC and NJBPU approved the amounts and allocations of the additional merger benefits for Delaware and New Jersey, respectively. On April 12, 2017, the MDPSC issued an order approving the amounts of the additional merger benefits for Maryland, but amending the proposed allocations of the benefits. The amended allocations do not have a material effect on any of the Registrants' financial statements. No changes in commitment cost levels are required in the District of Columbia.
During the second quarter of 2017, Exelon finalized the application of $8 million funding for low- and moderate-income customers in the Pepco Maryland and DPL Maryland service territories.  This resulted in an adjustment to merger commitment costs recorded at Exelon Corporate, Pepco, and DPL.  Exelon Corporate recorded an increase of $8 million and Pepco and DPL recorded a decrease of $6 million and $2 million, respectively, in Operating and maintenance expense.
The following amounts represent total commitment costs for Exelon, PHI, Pepco, DPL and ACE that have been recorded since the acquisition date:
 Expected Payment Period       Successor  
Description Pepco DPL ACE PHI Exelon
Rate credits2016 - 2017 $91
 $67
 $101
 $259
 $259
Energy efficiency2016 - 2021 
 
 
 
 122
Charitable contributions2016 - 2026 28
 12
 10
 50
 50
Delivery system modernizationQ2 2017 
 
 
 
 22
Green sustainability fundQ2 2017 
 
 
 
 14
Workforce development2016 - 2020 
 
 
 
 17
Other  1
 5
 
 6
 29
Total  $120
 $84
 $111
 $315
 $513
Pursuant to the orders approving the merger, Exelon made $73 million, $46 million and $49 million of equity contributions to Pepco, DPL and ACE, respectively, in the second quarter of 2016 to fund the after-tax amounts of the customer bill credit and the customer base rate credit commitments.
In addition, Exelon is committed to develop or to assist in the commercial development of approximately 37 MWs of new generation in Maryland, District of Columbia, and Delaware, 27 MWs of which are expected to be completed by 2018. These investments are expected to total approximately $137 million, are expected to be primarily capital in nature, and will generate future earnings at Exelon and Generation. Investment costs will be recognized as incurred and recorded on Exelon's and Generation's financial statements. Exelon has also committed to purchase 100 MWs of wind energy in PJM, to procure 120 MWs of wind RECs for the purpose of meeting Delaware's renewable portfolio standards, and to maintain and promote energy efficiency and demand response programs in the PHI jurisdictions.
Pursuant to the various jurisdictions' merger approval conditions, over specified periods Pepco, DPL and ACE are not permitted to reduce employment levels due to involuntary attrition associated with the merger integration process and have made other commitments regarding hiring and relocation of positions.
In July 2015, the OPC, Public Citizen, Inc., the Sierra Club and the Chesapeake Climate Action Network (CCAN) filed motions to stay the MDPSC order approving the merger. The Circuit Court judge issued an order denying the motions for stay on August 12, 2015. On January 8, 2016, the Circuit Court judge affirmed the MDPSC’s order approving the merger and denied the petitions for judicial review filed

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

by the OPC, the Sierra Club, CCAN and Public Citizen, Inc.  On January 19, 2016, the OPC filed a notice of appeal to the Maryland Court of Special Appeals, and on January 21, the Sierra Club and CCAN filed notices of appeal. On January 27, 2017, the Maryland Court of Special Appeals affirmed the Circuit Court's judgment that the MDPSC did not err in approving the merger. The OPC and Sierra Club filed petitions seeking further review in the Court of Appeals of Maryland, which is the highest court in Maryland. On June 21, 2017, the Court of Appeals granted discretionary review of the January 27, 2017 decision by the Maryland Court of Special Appeals. The Maryland Court of Appeals will review the OPC argument that the MDPSC did not properly consider the acquisition premium paid to PHI shareholders under Maryland’s merger approval standard and the Sierra Club’s argument that the merger would harm the renewable and distributed generation markets. The two lower courts examining these issues rejected these arguments, which Exelon believes are without merit. All briefs have been filed and oral arguments were presented to the court on October 10, 2017.
Between March 25, 2016 and April 22, 2016, various parties filed motions with the DCPSC to reconsider its March 23, 2016 order approving the merger.  On June 17, 2016, the DCPSC denied all motions. In August 2016, the District Legal Entity of Columbia Office of People’s Counsel, the District of Columbia Government, and Public Citizen jointly with DC Sun each filed petitions for judicial review of the DCPSC’s March 23, 2016 order with the District of Columbia Court of Appeals. On July 20, 2017, the Court issued an opinion rejecting all of appellants’ arguments and affirming the Commission’s decision approving the merger.
Accounting for the Merger Transaction
The total purchase price consideration of approximately $7.1 billion for the PHI Merger consisted of cash paid to PHI shareholders, cash paid for PHI preferred securities and cash paid for PHI stock-based compensation equity awards as follows:
(In millions of dollars, except per share data) Total Consideration
Cash paid to PHI shareholders at $27.25 per share (254 million shares outstanding at March 23, 2016) $6,933
Cash paid for PHI preferred stock 180
Cash paid for PHI stock-based compensation equity awards(a)
 29
Total purchase price $7,142
__________
(a)PHI’s unvested time-based restricted stock units and performance-based restricted stock units issued prior to April 29, 2014 were immediately vested and paid in cash upon the close of the merger.  PHI’s remaining unvested time-based restricted stock units as of the close of the merger were cancelled.  There were no remaining unvested performance-based restricted stock units as of the close of the merger. 
PHI shareholders received $27.25 of cash in exchange for each share of PHI common stock outstanding as of the effective date of the merger. In connection with the Merger Agreement, Exelon entered into a Subscription Agreement under which it purchased $180 million of a new class of nonvoting, nonconvertible and nontransferable preferred securities of PHI prior to December 31, 2015. On March 23, 2016, the preferred securities were cancelled for no consideration to Exelon, and accordingly, the $180 million cash consideration previously paid to acquire the preferred securities was treated as purchase price consideration.
The preliminary valuations performed in the first quarter of 2016 were updated in the second, third, and fourth quarters of 2016. There were no adjustments to the purchase price allocation in the first quarter of 2017 and the purchase price allocation is now final.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Exelon applied push-down accounting to PHI, and accordingly, the PHI assets acquired and liabilities assumed were recorded at their estimated fair values on Exelon’s and PHI's Consolidated Balance Sheets as follows:
Purchase Price Allocation(a)
 
Current assets$1,441
Property, plant and equipment11,088
Regulatory assets5,015
Other assets248
Goodwill4,005
Total assets$21,797
  
Current liabilities$2,752
Unamortized energy contracts1,515
Regulatory liabilities297
Long-term debt, including current maturities5,636
Deferred income taxes3,447
Pension and OPEB obligations821
Other liabilities187
Total liabilities$14,655
Total purchase price$7,142
__________
(a)Amounts shown reflect the final purchase price allocation and the correction of a reporting error identified and corrected in the second quarter of 2016. The error had resulted in a gross up of certain assets and liabilities related to legacy PHI intercompany and income tax receivable and payable balances.
On its successor financial statements, PHI has recorded, beginning March 24, 2016, Membership interest equity of $7.2 billion, which is greater than the total $7.1 billion purchase price, reflecting the impact of a $59 million deferred tax liability recorded only at Exelon Corporate to reflect unitary state income tax consequences of the merger.
The excess of the purchase price over the estimated fair value of the assets acquired and the liabilities assumed totaled $4.0 billion, which was recognized as goodwill by PHI and Exelon at the acquisition date, reflecting the value associated with enhancing Exelon's regulated utility portfolio of businesses, including the ability to leverage experience and best practices across the utilities and the opportunities for synergies. For purposes of future required impairment assessments, the goodwill has been assigned to PHI's reportable units Pepco, DPL and ACE in the amounts of $1.7 billion, $1.1 billion and $1.2 billion, respectively. None of this goodwill is expected to be tax deductible.
Immediately following closing of the merger, $235 million of net assets included in the table above associated with PHI's unregulated business interests were distributed by PHI to Exelon. Exelon contributed $163 million of such net assets to Generation.
The fair values of PHI's assets and liabilities were determined based on significant estimates and assumptions that are judgmental in nature, including projected future cash flows (including timing), discount rates reflecting risk inherent in the future cash flows, future market prices and impacts of utility rate regulation. There were also judgments made to determine the expected useful lives assigned to each class of assets acquired.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Through its wholly owned rate regulated utility subsidiaries, most of PHI’s assets and liabilities are subject to cost-of-service rate regulation.  Under such regulation, rates charged to customers are established by a regulator to provide for recovery of costs and a fair return on invested capital, or rate base, generally measured at historical cost.  In applying the acquisition method of accounting, for regulated assets and liabilities included in rate base or otherwise earning a return (primarily property, plant and equipment and regulatory assets earning a return), no fair value adjustments were recorded as historical cost is viewed as a reasonable proxy for fair value. 
Fair value adjustments were applied to the historical cost bases of other assets and liabilities subject to rate regulation but not earning a return (including debt instruments and pension and OPEB obligations).   In these instances, a corresponding offsetting regulatory asset or liability was also established, as the underlying utility asset and liability amounts are recoverable from or refundable to customers at historical cost (and not at fair value) through the rate setting process.  Similar treatment was applied for fair value adjustments to record intangible assets and liabilities, such as for electricity and gas energy supply contracts as further described below.  Regulatory assets and liabilities established to offset fair value adjustments are amortized in amounts and over time frames consistent with the realization or settlement of the fair value adjustments, with no impact on reported net income.  See Note 3 - Regulatory Matters for additional information regarding the fair value of regulatory assets and liabilities established by Exelon and PHI.
Fair value adjustments were recorded at Exelon and PHI for the difference between the contract price and the market price of electricity and gas energy supply contracts of PHI’s wholly owned rate regulated utility subsidiaries. These adjustments are intangible assets and liabilities classified as unamortized energy contracts on Exelon’s and PHI’s Consolidated Balance Sheets as of December 31, 2017.  The difference between the contract price and the market price at the acquisition date of the Merger was recognized for each contract as either an intangible asset or liability.  In total, Exelon and PHI recorded a net $1.5 billion liability reflecting out-of-the-money contracts. The valuation of the acquired intangible assets and liabilities was estimated by applying either the market approach or the income approach depending on the nature of the underlying contract. The market approach was utilized when prices and other relevant information generated by market transactions involving comparable transactions were available. Otherwise the income approach, which is based upon discounted projected future cash flows associated with the underlying contracts, was utilized. In certain instances, the valuations were based upon certain unobservable inputs, which are considered Level 3 inputs, pursuant to applicable accounting guidance. Key estimates and inputs include forecasted power prices and the discount rate.  The unamortized energy contract fair value adjustment amounts and the corresponding offsetting regulatory asset and liability amounts are amortized through Purchased power and fuel expense or Operating revenues, as applicable, over the life of the applicable contract in relation to the present value of the underlying cash flows as of the merger date.
As mentioned, under cost-of-service rate regulation, rates charged to customers are established by a regulator to provide for recovery of costs and a fair return on invested capital, or rate base, generally measured at historical cost.  Historical cost information therefore is the most relevant presentation for the financial statements of PHI’s rate regulated utility subsidiary registrants, Pepco, DPL and ACE.  As such, Exelon and PHI did not push-down the application of acquisition accounting to PHI's utility registrants, and therefore the financial statements of Pepco, DPL and ACE do not reflect the revaluation of any assets and liabilities.
The current impact of PHI, including its unregulated businesses, on Exelon's Consolidated Statements of Operations and Comprehensive Income includes Operating revenues of $4,829 million and Net income of $364 million during the year ended December 31, 2017, and Operating revenues of $3,785 million and Net loss of $(66) million for the year ended December 31, 2016.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

For the periods ended December 31, 2017 and 2016, the Registrants have recognized costs to achieve the PHI acquisition as follows:
 For the Year Ended December 31,
Acquisition, Integration and Financing Costs(a)
2017 2016
Exelon$16
 $143
Generation22
 37
ComEd(b)
1
 (6)
PECO4
 5
BGE(b)
4
 (1)
Pepco(b)
(6) 28
DPL(b)
(7) 20
ACE(b)
(6) 19

 Successor  Predecessor
Acquisition, Integration and Financing Costs(a)
For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  
January 1, 2016 to
March 23, 2016
PHI(b)
$(18) $69
  $29
______________
(a)The costs incurred are classified primarily within Operating and maintenance expense in the Registrants’ respective Consolidated Statements of Operations and Comprehensive Income, with the exception of the financing costs, which are included within Interest expense. Costs do not include merger commitments discussed above.
(b)For the year ended December 31, 2017, includes deferrals of previously incurred integration costs to achieve distribution synergies related to the PHI acquisition of $24 million, $8 million, $8 million, and $8 million incurred at PHI, Pepco, DPL, and ACE, respectively, that have been recorded as a regulatory asset for anticipated recovery. For the year ended December 31, 2016, includes deferrals of previously incurred integration costs to achieve distribution synergies related to the PHI acquisition of $8 million, $6 million, $11 million, and $4 million incurred at ComEd, BGE, Pepco, and DPL, respectively, that have been recorded as a regulatory asset for anticipated recovery. For the Successor period March 24, 2016 to December 31, 2016, includes deferrals of previously incurred integration costs to achieve distribution synergies related to the PHI acquisition of $16 million incurred at PHI that have been recorded as a regulatory asset for anticipated recovery. See Note 3 - Regulatory Matters for more information.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Pro-forma Impact of the Merger
The following unaudited pro-forma financial information reflects the consolidated results of operations of Exelon as if the merger with PHI had taken place on January 1, 2015. The unaudited pro forma information was calculated after applying Exelon’s accounting policies and adjusting PHI’s results to reflect purchase accounting adjustments.
The unaudited pro-forma financial information has been presented for illustrative purposes only and is not necessarily indicative of results of operations that would have been achieved had the merger events taken place on the dates indicated, or the future consolidated results of operations of the combined company.
 Year Ended December 31,
 
2016(a)
 
2015(b)
Total operating revenues$32,342
 $33,823
Net income attributable to common shareholders1,562
 2,618
    
Basic earnings per share$1.69
 $2.85
Diluted earnings per share1.69
 2.84
______________
(a)The amounts above exclude non-recurring costs directly related to the merger of $680 million and intercompany revenue of $171 million for the year ended December 31, 2016.
(b)The amounts above exclude non-recurring costs directly related to the merger of $92 million and intercompany revenue of $559 million for the year ended December 31, 2015.
Asset Dispositions (Exelon, Generation, PHI, Pepco and DPL)
EGTP, a Delaware limited liability company, was formed in 2014 with the purpose of financing a portfolio of assets comprised of two combined-cycle gas turbines (CCGTs) and three peaking/simple cycle facilities consisting of approximately 3.4 GW of generation capacity in ERCOT North and Houston Zones.  EGTP is an indirect wholly owned subsidiary of Exelon and Generation. Each of the aforementioned facilities are held through a wholly owned direct subsidiary of EGTP. EGTP also owns two equity method investments in shared facility companies. EGTP, its direct parent and its wholly owned subsidiaries secured a nonrecourse senior secured term loan facility, a revolving loan facility and certain commodity and interest rate swaps.
EGTP’s operating cash flows were negatively impacted by certain market conditions and the seasonality of its cash flows. On May 2, 2017, as a result of the negative impacts of certain market conditions and the seasonality of its cash flows, EGTP entered into a consent agreement with its lenders to permit EGTP to draw on its revolving credit facility and initiate an orderly sales process to sell the assets of its wholly owned subsidiaries. As a result, Exelon and Generation classified certain of EGTP assets and liabilities as held for sale at their respective fair values less costs to sell and recorded a $460 million pre-tax impairment loss. See Note 13 - Debt and Credit Agreements for details regarding the nonrecourse debt associated with EGTP and Note 7 - Impairment of Long-Lived Assets— Property, Plant, and Intangibles for further information.
On November 7, 2017, EGTP and all of its wholly owned subsidiaries (collectively with EGTP, the "Debtors") filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Code in the United States Bankruptcy Court for the District of Delaware. The Debtors sought Bankruptcy Court authorization to jointly administer the Chapter 11 cases. The Debtors are continuing to manage their assets and operate their businesses as "debtors in possession" under the jurisdiction of the Bankruptcy Court and in accordance with the applicable provisions of the Bankruptcy Code and the orders of the Bankruptcy Court. As a result of the bankruptcy filing, Exelon and Generation deconsolidated EGTP's

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)Equipment

assets and liabilities from their consolidated financial statements, resulting in a pre-tax gain upon deconsolidation of $213 million. Concurrently with the Chapter 11 filings, Generation entered into an asset purchase agreement to acquire one of EGTP’s generating plants, the Handley Generating Station, for approximately $60 million, subject to a potential adjustment for fuel oil and assumption of certain liabilities. In the Chapter 11 Filings, EGTP requested that the proposed acquisition of the Handley Generating Station be consummated through a court-approved and supervised sales process. The acquisition was approved by the Bankruptcy Court in January 2018 and the transaction is expected to be completed in the first half of 2018.
In December 2017, Pepco Building Services, Inc. entered into a purchase and sale agreement to sell its interest in an electrical contracting business that primarily installs, maintains and repairs underground and high-voltage cable transmission and distribution systems. The closing of the sale is expected to be completed in the first quarter of 2018. As a result, as of December 31, 2017, certain assets and liabilities were classified as held for sale at their respective fair values less costs to sell and included in the Other current assets and Other current liabilities balances on Exelon's and Generation's Consolidated Balance Sheet.
During the fourth quarter 2016, as part of its continual assessment of growth and development opportunities, Generation reevaluated and in certain instances terminated or renegotiated certain projects and contracts. As a result, a pre-tax loss of $69 million was recorded within Loss on sale of assets and pre-tax impairment charges of $23 million was recorded within Operating and maintenance expense in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income.
In July 2016, DPL completed the sale of a 9-acre land parcel located on South Madison Street in Wilmington, DE, resulting in a pre-tax gain of approximately $4 million. In December 2016, DPL completed the sale of a 48-acre land parcel located in Middletown, DE, resulting in a pre-tax gain of approximately $5 million. Due to the fair value adjustments recorded at Exelon and PHI as part of purchase accounting, no gain was recorded in Exelon's and PHI's Consolidated Statements of Operations and Comprehensive Income. 
On June 16, 2016, Generation initiated the sales process of its Upstream business by executing a forbearance agreement with the lenders of the nonrecourse debt. See Note 13 - Debt and Credit Agreements for more information. In December 2016, Generation sold substantially all of the Upstream assets for $37 million which resulted in a pre-tax loss on sale of $10 million which is included in Gain (loss) on sales of assets on Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income for the year ended December 31, 2016.
On May 2, 2016, Pepco completed the sale of the New York Avenue land parcel, located in Washington, D.C., resulting in a pre-tax gain of approximately $8 million at Pepco. Due to the fair value adjustments recorded at Exelon and PHI as part of purchase accounting, no gain was recorded in Exelon's and PHI's Consolidated Statements of Operations and Comprehensive Income.
On April 21, 2016, Generation completed the sale of the retired New Boston generating site, located in Boston, Massachusetts, resulting in a pre-tax gain of approximately $32 million.
On November 10, 2015, Pepco completed the sale of a 3.5-acre parcel of unimproved land (held as non-utility property) in the Buzzard Point area of southeast Washington, D.C., resulting in a pre-tax gain of $37 million.
On December 31, 2015, Pepco completed the sale of a 3.8-acre parcel of unimproved land (held as non-utility property) in the NoMa area of northeast Washington, D.C., resulting in a pre-tax gain of $9 million. The purchase and sale agreement also provided the third party with a 90-day option to purchase the remaining 1.8-acre land parcel.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

5. Accounts Receivable (All Registrants)
Accounts receivable at December 31, 2017 and 2016 included estimated unbilled revenues, representing an estimate for the unbilled amount of energy or services provided to customers, and is net of an allowance for uncollectible accounts as follows:
           Successor      
2017Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Unbilled customer
revenues
$1,858
 $1,017
(a) 
$242
 $162
 $205
 $232
 $133
 $68
 $31
Allowance for uncollectible
accounts
(b)
(322)
(114)
(73)
(56)
(c) 
(24) (55) (21) (16) (18)
           Successor       
2016Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE 
Unbilled customer revenues$1,673
 $910
(a) 
$219
 $140
 $182
 $222
 $123
 $58
 $41
 
Allowance for uncollectible
accounts
(b)
(334)
(91)
(70)
(61)
(c) 
(32) (80)
(d) 
(29)
(d) 
(24)
(d) 
(27)
(d) 
__________
(a)Represents unbilled portion of retail receivables estimated under Exelon’s unbilled critical accounting policy.
(b)Includes the estimated allowance for uncollectible accounts on billed customer and other accounts receivable.
(c)Excludes the non-current allowance for uncollectible accounts of $15 million and $23 million at December 31, 2017 and 2016, respectively, related to PECO’s current installment plan receivables described below.
(d)At December 31, 2016, as explained in Note 1 — Significant Accounting Policies, PHI, Pepco, DPL and ACE estimated the allowance for uncollectible accounts on customer receivables by applying loss rates to the outstanding receivable balance by risk segment. The change in estimate resulted in an overall increase of $30 million, $14 million, $8 million, and $8 million in the allowance for uncollectible accounts with $20 million, $8 million, $4 million, and $8 million deferred as a regulatory asset on PHI's, Pepco's, DPL's and ACE's Consolidated Balance Sheets at December 31, 2016, respectively. This also resulted in a $10 million, $6 million, and $4 million pre-tax charge to provision for uncollectible accounts expense for the year ended December 31, 2016, which is included in Operating and maintenance expense on PHI's, Pepco's and DPL's Consolidated Statements of Operations and Comprehensive Income, respectively.
PECO Installment Plan Receivables (Exelon and PECO)
PECO enters into payment agreements with certain delinquent customers, primarily residential, seeking to restore their service, as required by the PAPUC. Customers with past due balances that meet certain income criteria are provided the option to enter into an installment payment plan, some of which have terms greater than one year, to repay past due balances in addition to paying for their ongoing service on a current basis. The receivable balance for these payment agreement receivables is recorded in accounts receivable for the current portion and other deferred debits and other assets for the noncurrent portion. The net receivable balance for installment plans with terms greater than one year was $11 million and $9 million at December 31, 2017 and 2016, respectively. The allowance for uncollectible accounts reserve methodology and assessment of the credit quality of the installment plan receivables are consistent with the customer accounts receivable methodology discussed in Note 1—Significant Accounting Policies. The allowance for uncollectible accounts balance associated with these receivables at December 31, 2017 of $11 million consists of $3 million and $8 million for medium risk and high-risk segments, respectively. The allowance for uncollectible accounts balance associated with these receivables at December 31, 2016 of $13 million consists of $1 million, $3 million and $9 million for low risk, medium risk and high risk-segments, respectively. The balance of the payment agreement is billed to the customer in equal monthly installments over the term of the agreement. Installment receivables outstanding as of December 31, 2017 and 2016 include balances not yet presented on the customer bill, accounts currently billed and an immaterial amount of past due receivables. When a customer defaults on its payment agreement, the terms of which are defined by plan type, the entire balance of the agreement becomes due and the balance is reclassified to current customer accounts receivable

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

and reserved for in accordance with the methodology discussed in Note 1—Significant Accounting Policies.
6.7. Property, Plant, and Equipment (All Registrants)
Exelon
The following table presentstables present a summary of property, plant, and equipment by asset category as of December 31, 20172022 and 2016:2021:
Average 
Service Life
(years)
 2017 2016
Asset Category    Asset CategoryExelonComEdPECOBGEPHIPepcoDPLACE
December 31, 2022December 31, 2022
Electric—transmission and distribution5-90 $49,506
 $45,698
Electric—transmission and distribution$69,034 $32,906 $10,719 $9,993 $17,165 $11,270 $5,231 $5,219 
Electric—generation2-56 29,019
 27,193
Gas—transportation and distribution5-90 5,050
 4,642
Gas—transportation and distribution8,126 — 3,619 4,074 696 — 855 — 
Common—electric and gas5-75 1,447
 1,312
Common—electric and gas2,521 — 1,071 1,317 228 — 206 — 
Nuclear fuel (a)
1-8 6,420
 6,546
Construction work in progressN/A 2,825
 4,306
Construction work in progress4,534 1,174 744 487 2,101 1,526 271 296 
Other property, plant and equipment (b)
2-50 999
 1,027
Other property, plant, and equipment(a)
Other property, plant, and equipment(a)
791 106 50 50 114 65 29 26 
Total property, plant, and equipmentTotal property, plant, and equipment85,006 34,186 16,203 15,921 20,304 12,861 6,592 5,541 
Less: accumulated depreciationLess: accumulated depreciation15,930 6,673 4,078 4,583 2,618 4,067 1,772 1,551 
Property, plant, and equipment, netProperty, plant, and equipment, net$69,076 $27,513 $12,125 $11,338 $17,686 $8,794 $4,820 $3,990 
December 31, 2021December 31, 2021
Electric—transmission and distributionElectric—transmission and distribution$64,771 $31,077 $10,076 $9,352 $16,062 $10,798 $4,957 $4,882 
Gas—transportation and distributionGas—transportation and distribution7,429 — 3,339 3,712 646 — 806 — 
Common—electric and gasCommon—electric and gas2,335 — 1,005 1,224 201 — 180 — 
Construction work in progressConstruction work in progress3,698 918 620 554 1,590 1,118 229 242 
Other property, plant and equipment(a)
Other property, plant and equipment(a)
755 99 41 34 107 63 23 25 
Total property, plant and equipment 95,266
 90,724
Total property, plant and equipment78,988 32,094 15,081 14,876 18,606 11,979 6,195 5,149 
Less: accumulated depreciation (c)
 21,064
 19,169
Property, plant and equipment, net $74,202
 $71,555
Less: accumulated depreciationLess: accumulated depreciation14,430 6,099 3,964 4,299 2,108 3,875 1,635 1,420 
Property, plant, and equipment, netProperty, plant, and equipment, net$64,558 $25,995 $11,117 $10,577 $16,498 $8,104 $4,560 $3,729 
__________
(a)Includes nuclear fuel that is in the fabrication and installation phase of $1,196 million and $1,326 million at December 31, 2017 and 2016, respectively.
(b)Includes Generation’s buildings under capital lease with a net carrying value of $7 million and $10 million at December 31, 2017 and 2016, respectively. The original cost basis of the buildings was $47 million and $52 million, and total accumulated amortization was $40 million and $42 million, as of December 31, 2017 and 2016, respectively. Also includes ComEd’s buildings under capital lease with a net carrying value at both December 31, 2017 and 2016, of $7 million. The original cost basis of the buildings was $8 million and total accumulated amortization was $1 million as of both December 31, 2017 and 2016. Includes land held for future use and non-utility property at ComEd, PECO, BGE, Pepco, DPL and ACE of $44 million, $21 million, $26 million, $59 million, $15 million and $27 million, respectively, at December 31, 2017. Includes the original cost and progress payments associated with Generation’s turbine equipment held for future use with a carrying value of $0 million and $17 million as of December 31, 2017 and 2016, respectively. Generation's turbine equipment was impaired by $11 million and the remaining $6 million was moved to the assets held for sale account at December 31, 2017.
(c)Includes accumulated amortization of nuclear fuel in the reactor core at Generation of $3,159 million and $3,186 million as of December 31, 2017 and 2016, respectively.
The following table presents the annual depreciation provisions as a percentage(a)Primarily composed of average service life for each asset category.land and non-utility property.

201




Average Service Life Percentage by Asset Category2017 2016 2015
Electric—transmission and distribution2.75% 2.73% 2.83%
Electric—generation(a)
4.36%
(a) 
5.94%
(a) 
3.47%
Gas2.10% 2.17% 2.17%
Common—electric and gas7.05% 7.41% 7.79%
__________
(a)See Note 8 — Early Nuclear Plant Retirements for additional information on the accelerated net depreciation and amortization of Clinton, Quad Cities and TMI.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 7 — Property, Plant, and Equipment
Generation
The following table presents a summarythe average service life for each asset category in number of years:
Average Service Life (years)
Asset CategoryExelonComEdPECOBGEPHIPepcoDPLACE
Electric - transmission and distribution5-805-805-705-805-755-755-755-75
Gas - transportation and distribution5-80N/A5-705-805-75N/A5-75N/A
Common - electric and gas4-75N/A5-554-505-75N/A5-75N/A
Other property, plant, and equipment4-6131-505020-5010-4310-3310-4313-15
The following table presents the annual depreciation rates for each asset category.
Annual Depreciation Rates
ExelonComEdPECOBGEPHIPepcoDPLACE
December 31, 2022
Electric—transmission and distribution2.87%3.00%2.29%2.82%2.96%2.58%3.08%3.38%
Gas—transportation and distribution2.14%N/A1.87%2.53%1.45%N/A1.45%N/A
Common—electric and gas7.54%N/A6.31%8.20%8.96%N/A10.03%N/A
December 31, 2021
Electric—transmission and distribution2.81%2.94%2.28%2.80%2.87%2.56%2.86%3.21%
Gas—transportation and distribution2.13%N/A1.84%2.54%1.47%N/A1.47%N/A
Common—electric and gas7.31%N/A6.34%7.88%8.33%N/A8.69%N/A
December 31, 2020
Electric—transmission and distribution2.79%2.95%2.31%2.69%2.81%2.53%2.85%3.08%
Gas—transportation and distribution2.14%N/A1.85%2.56%1.50%N/A1.50%N/A
Common—electric and gas7.01%N/A6.39%7.45%7.36%N/A6.72%N/A
AFUDC
The following table summarizes credits to AFUDC by year:
ExelonComEdPECOBGEPHIPepcoDPLACE
December 31, 2022
AFUDC debt and equity$215 $54 $42 $29 $90 $69 $10 $11 
December 31, 2021
AFUDC debt and equity$189 $47 $34 $36 $72 $59 $$
December 31, 2020
AFUDC debt and equity$150 $42 $23 $30 $55 $42 $$
See Note 1 — Significant Accounting Policies for additional information regarding property, plant and equipment by asset category as of December 31, 2017 and 2016:
 
Average 
Service Life
(years)
 2017 2016
Asset Category     
Electric—generation2-56 $29,019
 $27,193
Nuclear fuel (a)
1-8 6,420
 6,546
Construction work in progressN/A 838
 2,332
Other property, plant and equipment (b)
2-3 57
 76
Total property, plant and equipment  36,334
 36,147
Less: accumulated depreciation (c)
  11,428
 10,562
Property, plant and equipment, net  $24,906
 $25,585
__________
(a)Includes nuclear fuel that is in the fabrication and installation phase of $1,196 million and $1,326 million at December 31, 2017 and 2016, respectively.
(b)Includes buildings under capital lease with a net carrying value of $7 million and $10 million at December 31, 2017 and 2016, respectively. The original cost basis of the buildings was $47 million and $52 million, and total accumulated amortization was $40 million and $42 million, as of December 31, 2017 and 2016, respectively. Includes the original cost and progress payments associated with Generation’s turbine equipment held for future use with a carrying value of $0 million and $17 million as of December 31, 2017 and 2016, respectively. Generation's turbine equipment was impaired by $11 million and the remaining $6 million was moved to the assets held for sale account at December 31, 2017.
(c)Includes accumulated amortization of nuclear fuel in the reactor core of $3,159 million and $3,186 million as of December 31, 2017 and 2016, respectively.
The annual depreciation provisions as a percentage of average service life for electric generation assets were 4.36%, 5.94% and 3.47% for the years ended December 31, 2017, 2016 and 2015, respectively.policies. See Note 816Early Nuclear Plant Retirements for additional information on the accelerated net depreciationDebt and amortization of Clinton, Quad Cities and TMI.
License Renewals
Generation’s depreciation provisions are based on the estimated useful lives of its generating stations, which reflect the renewal of the licenses for all nuclear generating stations (except for Oyster Creek, Clinton and TMI) and the hydroelectric generating stations. As a result, the receipt of license renewals has no material impact on the Consolidated Statements of Operations and Comprehensive Income. Clinton depreciation provisions are based on 2027 which is the last year of the Illinois ZECs. In 2017, Oyster Creek and TMI depreciation provisions were based on their 2019 expected shutdown dates. Beginning February 2018, Oyster Creek depreciation provisions will be based on its announced shutdown date of 2018. See Note 3 — Regulatory MattersCredit Agreements for additional information regarding license renewalsExelon’s, ComEd’s, PECO's, Pepco's, DPL's, and the Illinois ZECs. See Note 8 — Early Nuclear Plant Retirements for additional information on the impactsACE’s property, plant and equipment subject to mortgage liens.
202




Table of expected and potential early plant retirement.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


ComEd
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2017 and 2016:
Note 8 — Jointly Owned Electric Utility Plant
 
Average 
Service Life
(years)
 2017 2016
Asset Category     
Electric—transmission and distribution5-80 $24,423
 $22,636
Construction work in progressN/A 517
 569
Other property, plant and equipment (a), (b)
36-50 52
 67
Total property, plant and equipment  24,992
 23,272
Less: accumulated depreciation  4,269
 3,937
Property, plant and equipment, net  $20,723
 $19,335
__________
(a)Includes buildings under capital lease with a net carrying value at both December 31, 2017 and 2016 of $7 million. The original cost basis of the buildings was $8 million and total accumulated amortization was $1 million as of both December 31, 2017 and 2016.
(b)Includes land held for future use and non-utility property.
The annual depreciation provisions as a percentage of average service life for electric transmission and distribution assets were 2.99%, 3.03% and 3.03% for the years ended December 31, 2017, 2016 and 2015, respectively.
PECO
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2017 and 2016:
 
Average 
Service Life
(years)
 2017 2016
Asset Category     
Electric—transmission and distribution5-65 $7,975
 $7,591
Gas—transportation and distribution5-70 2,504
 2,348
Common—electric and gas5-50 710
 670
Construction work in progressN/A 254
 188
Other property, plant and equipment (a)
50 21
 21
Total property, plant and equipment  11,464
 10,818
Less: accumulated depreciation  3,411
 3,253
Property, plant and equipment, net  $8,053
 $7,565
__________
(a)Represents land held for future use and non-utility property.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table presents the annual depreciation provisions as a percentage of average service life for each asset category.
Average Service Life Percentage by Asset Category2017 2016 2015
Electric—transmission and distribution2.37% 2.32% 2.39%
Gas1.89% 1.82% 1.87%
Common—electric and gas5.47% 5.11% 5.16%
BGE
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2017 and 2016:
 
Average 
Service Life
(years)
 2017 2016
Asset Category     
Electric—transmission and distribution5-90 $7,464
 $7,067
Gas—distribution5-90 2,379
 2,170
Common—electric and gas5-40 771
 707
Construction work in progressN/A 367
 318
Other property, plant and equipment (a)
20 26
 32
Total property, plant and equipment  11,007
 10,294
Less: accumulated depreciation  3,405
 3,254
Property, plant and equipment, net  $7,602
 $7,040
__________
(a)Represents land held for future use and non-utility property.
The following table presents the annual depreciation provisions as a percentage of average service life for each asset category.
Average Service Life Percentage by Asset Category2017 2016 2015
Electric—transmission and distribution2.58% 2.56% 2.62%
Gas2.33% 2.45% 2.50%
Common—electric and gas8.64% 9.45% 10.35%

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PHI
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2017 and 2016:
   Successor
 Average 
Service Life
(years)
 2017 2016
Asset Category     
Electric—transmission and distribution5-75 $11,517
 $10,315
Gas—distribution5-75 449
 414
Common—electric and gas5-75 82
 65
Construction work in progressN/A 835
 892
Other property, plant and equipment (a)
3-43 102
 107
Total property, plant and equipment  12,985


11,793
Less: accumulated depreciation  487

195
Property, plant and equipment, net  $12,498


$11,598
__________
(a)Represents plant held for future use and non-utility property. Utility plant is generally subject to a first mortgage lien.
The following table presents the annual depreciation provisions as a percentage of average service life for each asset category.
Average Service Life Percentage by Asset Category2017 2016 2015
Electric—transmission and distribution2.63% 2.52% 2.48%
Gas2.07% 2.57% 2.55%
Common—electric and gas6.50% 8.12% 5.19%
Pepco
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2017 and 2016:
 
Average 
Service Life
(years)
 2017 2016
Asset Category     
Electric—transmission and distribution5-75 $8,646
 $8,018
Construction work in progressN/A 473
 537
Other property, plant and equipment (a)
25-33 59
 66
Total property, plant and equipment  9,178


8,621
Less: accumulated depreciation  3,177

3,050
Property, plant and equipment, net  $6,001


$5,571
__________
(a)Represents plant held for future use and non-utility property. Utility plant is generally subject to a first mortgage lien.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The annual depreciation provisions as a percentage of average service life for electric transmission and distribution assets were 2.35%, 2.17% and 2.13% for the years ended December 31, 2017, 2016 and 2015, respectively.
DPL
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2017 and 2016:
 
Average
Service Life
(years)
 2017 2016
Asset Category     
Electric—transmission and distribution5-70 $3,875
 $3,574
Gas—distribution5-75 614
 580
Common—electric and gas5-75 117
 115
Construction work in progressN/A 205
 163
Other property, plant and equipment (a)
10-43 15
 16
Total property, plant and equipment  4,826


4,448
Less: accumulated depreciation  1,247

1,175
Property, plant and equipment, net  $3,579


$3,273
__________
(a)Represents plant held for future use and non-utility property. Utility plant is generally subject to a first mortgage lien.
The following table presents the annual depreciation provisions as a percentage of average service life for each asset category.
Average Service Life Percentage by Asset Category2017 2016 2015
Electric—transmission and distribution2.75% 2.49% 2.44%
Gas2.07% 2.57% 2.55%
Common—electric and gas4.14% 4.99% 4.24%
ACE
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2017 and 2016:
 
Average 
Service Life
(years)
 2017 2016
Asset Category     
Electric—transmission and distribution5-60 $3,607
 $3,341
Construction work in progressN/A 138
 169
Other property, plant and equipment (a)
13-15 27
 27
Total property, plant and equipment  3,772


3,537
Less: accumulated depreciation  1,066

1,016
Property, plant and equipment, net  $2,706


$2,521
__________
(a)Represents plant held for future use and non-utility property. Utility plant is generally subject to a first mortgage lien.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The annual depreciation provisions as a percentage of average service life for electric transmission and distribution assets were 2.46%, 2.45% and 2.46% for the years ended December 31, 2017, 2016 and 2015, respectively.
See Note 1 — Significant Accounting Policies for further information regarding property, plant and equipment policies and accounting for capitalized software costs for the Registrants. See Note 13 — Debt and Credit Agreements for further information regarding Exelon’s, ComEd’s and PECO’s property, plant and equipment subject to mortgage liens.
7. Impairment of Long-Lived Assets and Intangibles (Exelon, Generation and PHI)
Long-Lived Assets (Exelon, Generation and PHI)
Registrants evaluate long-lived assets for recoverability whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. At Generation, EGTP’s operating cash flows have been negatively impacted by certain market conditions and the seasonality of its cash flows. On May 2, 2017, EGTP entered into a consent agreement with its lenders to initiate an orderly sales process to sell the assets of its wholly owned subsidiaries. As a result, Exelon and Generation classified certain of EGTP's assets and liabilities as held for sale at their respective fair values less costs to sell and recorded a pre-tax impairment charge of $460 million within Operating and maintenance expense on their Consolidated Statements of Operations and Comprehensive Income during 2017. On November 7, 2017, EGTP and its wholly owned subsidiaries filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Code in the United States Bankruptcy Court for the District of Delaware and, as a result, Exelon and Generation deconsolidated EGTP's assets and liabilities from their consolidated financial statements. See Note 4 — Mergers, Acquisitions and Dispositions and Note 13 — Debt and Credit Agreements, for further information.
In the third quarter of 2015, PHI entered into a sponsorship agreement with the District of Columbia for future sponsorship rights associated with public property within the District of Columbia and paid the District of Columbia $25 million, which Exelon and PHI had recorded as a finite-lived intangible asset as of December 31, 2016. The specific sponsorship rights were to be determined over time through future negotiations. In the fourth quarter of 2017, based upon the lack of currently available sponsorship opportunities, the asset was written off and a pre-tax impairment charge of $25 million was recorded within Operating and maintenance expense in Exelon’s and PHI’s Consolidated Statements of Operations and Comprehensive Income.
During the first quarter of 2016, significant changes in Generation’s intended use of the Upstream oil and gas assets, developments with nonrecourse debt held by its Upstream subsidiary CEU Holdings, LLC (as described in Note 13 — Debt and Credit Agreements) and continued declines in both production volumes and commodity prices suggested that the carrying value may be impaired. Generation concluded that the estimated undiscounted future cash flows and fair value of its Upstream properties were less than their carrying values. As a result, a pre-tax impairment charge of $119 million was recorded in March 2016 within Operating and maintenance expense in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income. On June 16, 2016, Generation initiated the sales process of its Upstream natural gas and oil exploration and production business by executing a forbearance agreement with the lenders of the nonrecourse debt, see Note 13 — Debt and Credit Agreements for additional information. An additional pre-tax impairment charge of $15 million was recorded in September 2016 within Operating and maintenance expense in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income due to further declines in fair value. In December 2016, Generation sold substantially all of the Upstream Assets. See Note 4Mergers, Acquisitions and Dispositions for additional information.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

In the second quarter of 2016, updates to Exelon's long-term view of energy and capacity prices suggested that the carrying value of a group of merchant wind assets, located in West Texas, may be impaired.  Upon review, the estimated undiscounted future cash flows and fair value of the group were less than their carrying value.  The fair value analysis was based on the income approach using significant unobservable inputs (Level 3) including revenue and generation forecasts, projected capital and maintenance expenditures and discount rates. As a result of the fair value analysis, long-lived merchant wind assets held and used with a carrying amount of approximately $60 million were written down to their fair value of $24 million and a pre-tax impairment charge of $36 million was recorded during the second quarter of 2016 in Operating and maintenance expense in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income. 
Also in the second quarter of 2016, updates to Exelon's long-term view, as described above, in conjunction with the retirement announcements of the Quad Cities and Clinton nuclear plants in Illinois suggested that the carrying value of our Midwest asset group may be impaired.  Generation completed a comprehensive review of the estimated undiscounted future cash flows of the Midwest asset group and no impairment charge was required.
The fair value analysis used in the above impairments was primarily based on the income approach using significant unobservable inputs (Level 3) including revenue, generation and production forecasts, projected capital and maintenance expenditures and discount rates. Changes in the assumptions described above could potentially result in future impairments of Exelon’s long-lived assets, which could be material.
Like-Kind Exchange Transaction (Exelon)
In June 2000, UII, LLC (formerly Unicom Investments, Inc.) (UII), a wholly owned subsidiary of Exelon Corporation, entered into transactions pursuant to which UII invested in coal-fired generating station leases (Headleases) with the Municipal Electric Authority of Georgia (MEAG). The generating stations were leased back to MEAG as part of the transactions (Leases).
Pursuant to the applicable authoritative guidance, Exelon is required to review the estimated residual values of its direct financing lease investments at least annually and record an impairment charge if the review indicates an other-than-temporary decline in the fair value of the residual values below their carrying values. Exelon estimates the fair value of the residual values of its direct financing lease investments based on the income approach, which uses a discounted cash flow analysis, taking into consideration significant unobservable inputs (Level 3) including the expected revenues to be generated and costs to be incurred to operate the plants over their remaining useful lives subsequent to the lease end dates. Significant assumptions used in estimating the fair value include fundamental energy and capacity prices, fixed and variable costs, capital expenditure requirements, discount rates, tax rates and the estimated remaining useful lives of the plants. The estimated fair values also reflect the cash flows associated with the service contract option discussed above given that a market participant would take into consideration all of the terms and conditions contained in the lease agreements.
All the Headleases were terminated by the second quarter of 2016, and no events occurred prior to the termination that required Exelon to review the estimated residual values of the direct financing lease investments in 2016. On March 31, 2016, UII and MEAG finalized an agreement to terminate the MEAG Headleases, the MEAG Leases, and other related agreements prior to their expiration dates. As a result of the lease termination, UII received an early termination payment of $360 million from MEAG and wrote-off the $356 million net investment in the MEAG Headleases and the Leases. The transaction resulted in a pre-tax gain of $4 million which is reflected in Operating and maintenance expense in Exelon's Consolidated Statements of Operations and Comprehensive Income. See Note 14 — Income Taxes for additional information.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

8. Early Nuclear Plant Retirements (Exelon and Generation)
Exelon and Generation continue to evaluate the current and expected economic value of each of Generation’s nuclear plants. Factors that will continue to affect the economic value of Generation’s nuclear plants include, but are not limited to: market power prices, results of capacity auctions, potential legislative and regulatory solutions to ensure nuclear plants are fairly compensated for their carbon-free emissions, and the impact of final rules from the EPA requiring reduction of carbon and other emissions and the efforts of states to implement those final rules. The precise timing of an early retirement date for any nuclear plant, and the resulting financial statement impacts, may be affected by a number of factors, including the status of potential regulatory or legislative solutions, results of any transmission system reliability study assessments, the nature of any co-owner requirements and stipulations, and decommissioning trust fund requirements, among other factors. However, the earliest retirement date for any plant would usually be the first year in which the unit does not have capacity or other obligations, where applicable, and just prior to its next scheduled nuclear refueling outage.
In 2015 and 2016, Generation identified the Quad Cities, Clinton, Ginna, Nine Mile Point and Three Mile Island (TMI) nuclear plants as having the greatest risk of early retirement based on economic valuation and other factors. In 2017, PSEG has made public similar financial challenges facing its New Jersey nuclear plants including Salem, of which Generation owns a 42.59% ownership interest.
In Illinois, the Clinton and Quad Cities nuclear plants continued to face significant economic challenges and risk of retirement before the end of each unit’s respective operating license period (2026 for Clinton and 2032 for Quad Cities). In April 2016, Clinton cleared the MISO primary reliability auction as a price taker for the 2016-2017 planning year. The resulting capacity price was insufficient to cover cash operating costs and a risk-adjusted rate of return to shareholders. In May 2016, Quad Cities did not clear in the PJM capacity auction for the 2019-2020 planning year. Based on these capacity auction results, and given the lack of progress on Illinois energy legislation and MISO market reforms, on June 2, 2016 Generation announced it would shut down the Clinton and Quad Cities nuclear plants on June 1, 2017 and June 1, 2018, respectively.
On December 7, 2016, Illinois FEJA was signed into law by the Governor of Illinois and included a ZES that provides compensation through the procurement of ZECs targeted at preserving the environmental attributes of zero-emissions nuclear-powered generating facilities that meet specific eligibility criteria, much like the solution implemented with the New York CES. The Illinois ZES will have a 10-year duration extending from June 1, 2017 through May 31, 2027. See Note 3 - Regulatory Matters for additional discussion on the Illinois FEJA and the ZES. With the passage of the Illinois ZES, and subject to prevailing over any related potential administrative or legal challenges, in December 2016 Generation reversed its June 2016 decision to permanently cease generation operations at the Clinton and Quad Cities nuclear generating plants.
In New York, the Ginna and Nine Mile Point nuclear plants continue to face significant economic challenges and risk of retirement before the end of each unit’s respective operating license period (2029 for Ginna and Nine Mile Point Unit 1, and 2046 for Nine Mile Point Unit 2). On August 1, 2016, the NYPSC issued an order adopting the CES, which would provide payments to Ginna and Nine Mile Point for the environmental attributes of their production. On November 18, 2016, Ginna and Nine Mile Point executed the necessary contracts with NYSERDA, as required under the CES. Subject to prevailing over any administrative or legal challenges, the New York CES will allow Ginna and Nine Mile Point to continue to operate at least through the life of the program (March 31, 2029). The assumed useful life for depreciation purposes is through the end of their current operating licenses. The approved RSSA required Ginna to operate through the RSSA term expiring on March 31, 2017 and required notification to the NYPSC if Ginna did not plan to retire shortly after the expiration of the RSSA. On September 30, 2016, Ginna filed the required notice with the NYPSC of its intent to continue operating beyond the expiry

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

of the RSSA. Refer to Note 3 - Regulatory Matters for additional discussion on the Ginna RSSA and the New York CES.
Assuming the successful implementation of the Illinois ZES and the New York CES and the continued effectiveness of these programs, Generation and CENG, through its ownership of Ginna and Nine Mile Point, no longer consider Clinton, Quad Cities, Ginna or Nine Mile Point to be at heightened risk for early retirement. However, to the extent either the Illinois ZES or the New York CES programs do not operate as expected over their full terms, each of these plants could again be at heightened risk for early retirement, which could have a material impact on Exelon’s and Generation’s future results of operations, cash flows and financial positions.
In Pennsylvania, the TMI nuclear plant did not clear in the May 2017 PJM capacity auction for the 2020-2021 planning year, the third consecutive year that TMI failed to clear the PJM base residual capacity auction. The plant is currently committed to operate through May 2019 and is licensed to operate through 2034. On May 30, 2017, based on these capacity auction results, prolonged periods of low wholesale power prices, and the absence of federal or state policies that place a value on nuclear energy for its ability to produce electricity without air pollution, Exelon announced that Generation will permanently cease generation operations at TMI on or about September 30, 2019. Generation has filed the required market and regulatory notifications to shut down the plant. PJM has subsequently notified Generation that it has not identified any reliability issues and has approved the deactivation of TMI as proposed.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

As a result of these plant retirement decisions, Exelon and Generation recognized one-time charges in Operating and maintenance expense related to materials and supplies inventory reserve adjustments, employee-related costs and CWIP impairments, among other items. In addition to these one-time charges, annual incremental non-cash charges to earnings stemming from shortening the expected economic useful lives primarily related to accelerated depreciation of plant assets (including any ARC), accelerated amortization of nuclear fuel, and additional ARO accretion expense associated with the changes in decommissioning timing and cost assumptions were also recorded. See Note 15 — Asset Retirement Obligations for additional detail on changes to the nuclear decommissioning ARO balances. The total annual impact of these charges by year are summarized in the table below.
Income statement expense (pre-tax) 
2017(a)
 
2016(b)
Depreciation and Amortization    
Accelerated depreciation(c)
 $250
 $712
Accelerated nuclear fuel amortization 12
 60
Operating and Maintenance    
One-time charges(d,e)
 77
 26
Change in ARO accretion, net of any contractual offset(f)
 
 2
Contractual offset for ARC depreciation(f)
 
 (86)
Total $339
 $714
_________
(a)Reflects incremental charges for TMI including incremental accelerated depreciation and amortization from May 30, 2017 through December 31, 2017.
(b)Reflects incremental charges for Clinton and Quad Cities including incremental accelerated depreciation and amortization from June 2, 2016 through December 6, 2016. In December 2016, as a result of reversing its retirement decision for Clinton and Quad Cities, Exelon and Generation updated the expected economic useful life for both facilities, to 2027 for Clinton, commensurate with the end of the Illinois ZES, and to 2032 for Quad Cities, the end of its current operating license. Depreciation was therefore adjusted beginning December 7, 2016, to reflect these extended useful life estimates.
(c)Reflects incremental accelerated depreciation of plant assets, including any ARC.
(d)Primarily includes materials and supplies inventory reserve adjustments, employee related costs and CWIP impairments.
(e)In June 2016, as a result of the retirement decision for Clinton and Quad Cities, Exelon and Generation recognized one-time charges of $146 million. In December 2016, as a result of reversing its retirement decision for Clinton and Quad Cities, Exelon and Generation reversed approximately $120 million of these one-time charges initially recorded in June 2016.
(f)For Quad Cities based on the regulatory agreement with the Illinois Commerce Commission, decommissioning-related activities are offset within Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income. The offset results in an equal adjustment to the noncurrent payables to ComEd at Generation and an adjustment to the regulatory liabilities at ComEd. Likewise, ComEd has recorded an equal noncurrent affiliate receivable from Generation and corresponding regulatory liability.
Although Salem is committed to operate through May 2021, the plant faces continued economic challenges and PSEG, as the operator of the plant, is exploring all options. The following table provides the balance sheet amounts as of December 31, 2017 for Generation’s ownership share of the significant assets and liabilities associated with Salem.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

(in millions) 12/31/2017
Asset Balances  
Materials and supplies inventory $44
Nuclear fuel inventory, net 113
Completed plant, net 439
Construction work in progress 33
Liability Balances  
Asset retirement obligation (442)
   
NRC License Renewal Term 2036 (unit 1)
  2040 (unit 2)
On February 2, 2018, Exelon announced that Generation will permanently cease generation operations at Oyster Creek at the end of its current operating cycle in October 2018. See Note 28 — Subsequent Events for additional information regarding the early retirement of Oyster Creek.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

9. Jointly Owned Electric Utility Plant (Exelon, Generation, PECO, BGE, PHI, Pepco, DPL, and ACE)
Exelon's, Generation's, PECO's, BGE's, PHI'sDPL's, and ACE's material undivided ownership interests in jointly owned electric plants and transmission facilities atas of December 31, 20172022 and 20162021 were as follows:
 Nuclear Generation Fossil-Fuel Generation Transmission Other
 Quad Cities 
Peach
Bottom
 
Salem(a)
 Nine Mile Point Unit 2 Wyman 
PA(b)
 
NJ/ DE(c)
 
Other(d)
OperatorGeneration Generation PSEG
Nuclear
 Generation FP&L First
Energy
 PSEG/ DPL various
Ownership interest75.00% 50.00% 42.59% 82.00% 5.89% various
 various
 various
Exelon’s share at December 31, 2017:               
Plant(e)
$1,074
 $1,417
 $631
 $839
 $3
 $27
 $102
 $15
Accumulated depreciation(e)
550
 461
 205
 97
 3
 15
 52
 13
Construction work in progress35
 18
 33
 55
 
 
 
 
Exelon’s share at December 31, 2016:               
Plant(e)
$1,054
 $1,384
 $596
 $830
 $3
 $27
 $97
 $15
Accumulated depreciation(e)
515
 407
 186
 68
 3
 15
 52
 13
Construction work in progress
 16
 41
 37
 
 
 
 
__________
(a)Generation also owns a proportionateTransmission
NJ/DE(a)
OperatorPSEG/DPL
Ownership interestvarious
Exelon’s share in the fossil-fuel combustion turbine at Salem, which is fully depreciated. The gross book value was $3 million atas of December 31, 2017 and 2016.
2022:
(b)Plant in servicePECO, BGE, Pepco, DPL and ACE own a 22%, 7%, 27%, 9% and 8% share, respectively, in 127 miles of 500kV lines located in Pennsylvania as well as a 20.72%, 10.56%, 9.72%, 3.72% and 3.83% share, respectively, of a 500kV substation immediately outside of the Conemaugh fossil-generating station which supplies power to the 500kV lines including, but not limited to, the lines noted above.$
103 
(c)Accumulated depreciationPECO, DPL and ACE own a 42.55%, 1% and 13.9% share, respectively in 151.3 miles of 500kV lines located in New Jersey and Delaware Station. PECO, DPL and ACE also own a 42.55%, 7.45% and 7.45% share, respectively, in 2.5 miles of 500kV line located over the Delaware River. ACE also has a 21.78% share in a 500kV New Freedom Switching
56 
(d)Generation, DPL and ACE own a 44.24%, 4.83% and 11.91%Exelon’s share respectively in assets located at Merrill Creek Reservoir located in New Jersey. Pepco, DPL and ACE own a 11.9%, 7.4% and 6.6% share, respectively, in Valley Forge Corporate Center.
as of December 31, 2021:
(e)Plant in serviceExcludes asset retirement costs.$103 
Accumulated depreciation55 
Exelon’s, Generation’s, PECO’s, BGE’s, Pepco's,__________
(a)PECO, DPL, and ACE own a 42.55%, 1%, and 13.9% share, respectively, in 151.3 miles of 500kV lines located in New Jersey and in the Salem generating plant substation. PECO, DPL, and ACE also own a 42.55%, 7.45%, and 7.45% share, respectively, in 2.5 miles of 500kV line located over the Delaware River. ACE also has a 21.78% share in a 500kV New Freedom Switching substation.
PECO's, DPL's, and ACE's undivided ownership interests are financed with their funds and all operations are accounted for as if such participating interests were wholly owned facilities. Exelon’s, Generation’s, PECO’s, BGE’s, Pepco's,PECO's, DPL's, and ACE's share of direct expenses of the jointly owned plants are included in Purchased power and fuel and Operating and maintenance expenses on Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income and in Operating and maintenance expenses on PECO’s, BGE’s, Pepco,Exelon's, PECO's, PHI's, DPL's, and ACE's Consolidated Statements of Operations and Comprehensive Income.


9. Asset Retirement Obligations (All Registrants)
The Registrants have AROs primarily associated with the abatement and disposal of equipment and buildings contaminated with asbestos and PCBs. See Note 1 — Significant Accounting Policies for additional information on the Registrants’ accounting policy for AROs. 
The following table provides a rollforward of the AROs reflected in the Registrants’ Consolidated Balance Sheets from December 31, 2020 to December 31, 2022:
ExelonComEdPECOBGEPHIPepcoDPLACE
AROs as of December 31, 2020$249 $129 $29 $23 $59 $39 $14 $
Net increase due to changes in, and timing of, estimated future cash flows26 15 — 10 
Accretion expense(a)
— — 
Payments(8)(2)(1)— — — — — 
AROs as of December 31, 2021274 146 29 26 70 45 16 
Net (decrease) increase due to changes in, and timing of, estimated future cash flows(8)(1)(13)(8)(3)(2)
Accretion expense(a)
— — 
Payments(3)(2)(1)— — — — — 
AROs as of December 31, 2022$271 $150 $28 $30 $59 $39 $13 $
__________
(a)For ComEd, PECO, BGE, PHI, DPL and ACE, the majority of the accretion is recorded as an increase to a regulatory asset due to the associated regulatory treatment.
203




Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 10 — Leases
10. Intangible Assets (Exelon, Generation,Leases(All Registrants)
Lessee
The Registrants have operating and finance leases for which they are the lessees. The following tables outline the significant types of leases at each registrant and other terms and conditions of the lease agreements as of December 31, 2022. Exelon, ComEd, PECO, and BGE did not have material finance leases in 2022, 2021, or in 2020.
ExelonComEdPECOBGEPHIPepcoDPLACE
Real estate
Vehicles and equipment
(in years)Exelon ComEdPECOBGEPHIPepcoDPLACE
Remaining lease terms1-831-31-111-831-91-91-91-7
Options to extend the term3-30N/AN/AN/A3-3053-305
Options to terminate within1-101N/AN/AN/AN/AN/AN/A
The components of operating lease costs were as follows:
Exelon ComEdPECOBGEPHIPepcoDPLACE
For the year ended December 31, 2022
Operating lease costs$66 $$— $15 $42 $10 $12 $
Variable lease costs— — 
Total lease costs(a)
$74 $$— $15 $44 $11 $13 $
For the year ended December 31, 2021
Operating lease costs$84 $$— $30 $43 $10 $12 $
Variable lease costs— — — — 
Total lease costs(a)
$91 $$— $31 $44 $10 $12 $
For the year ended December 31, 2020
Operating lease costs$98 $$$33 $46 $11 $13 $
Variable lease costs— — 
Total lease costs(a)
$105 $$$34 $48 $12 $14 $
__________
(a)Excludes sublease income recorded at Exelon, PHI, Pepco,and DPL of $4 million, $4 million, and ACE)
Goodwill
Exelon’s, Generation's, ComEd’s, PHI's and DPL's gross amount of goodwill, accumulated impairment losses and carrying amount of goodwill$4 million for the years ended December 31, 20172022, 2021, and 2016 were as follows:2020, respectively.









204




 Balance at January 1, 2016 Goodwill from business combination Impairment losses 
Measurement period adjustments (b)
 Balance at December 31, 2016 Impairment losses Balance at December 31, 2017
Exelon             
Gross amount$4,655
 $4,016
 $
 $(11) $8,660
 $
 $8,660
Accumulated impairment loss1,983
 
 
 
 1,983
 
 1,983
Carrying amount2,672
 4,016
 
 (11) 6,677
 
 6,677
Generation            
Gross amount47
 
 
 
 47
 
 47
Carrying amount47
 
 
 
 47
 
 47
ComEd(a)
            
Gross amount4,608
 
 
 
 4,608
 
 4,608
Accumulated impairment loss1,983
 
 
 
 1,983
 
 1,983
Carrying amount2,625
 
 
 
 2,625
 
 2,625
DPL            
Gross amount8
 
 
 
 8
 
 8
Carrying amount8
 
 
 
 8
 
 8

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 10 — Leases
The components of financing lease costs were as follows:
PHIPepcoDPLACE
For the year ended December 31, 2022
Amortization of ROU asset$14 $$$
Interest on lease liabilities
Total finance lease cost$18 $$$
For the year ended December 31, 2021
Amortization of ROU asset$11 $$$
Interest on lease liabilities— 
Total finance lease cost$13 $$$
For the year ended December 31, 2020
Amortization of ROU asset$$$$
Interest on lease liabilities— — 
Total finance lease cost$$$$
The following tables provide additional information regarding the presentation of operating and finance lease ROU assets and lease liabilities within the Registrants’ Consolidated Balance Sheets:
Operating Leases
Exelon ComEdPECOBGEPHIPepcoDPLACE
As of December 31, 2022
Operating lease ROU assets
Other deferred debits and other assets$265 $$$$180 $36 $39 $
Operating lease liabilities
Other current liabilities40 — — 31 
Other deferred credits and other liabilities266 — 167 34 42 
Total operating lease liabilities$306 $$$$198 $40 $50 $10 
As of December 31, 2021
Operating lease ROU assets
Other deferred debits and other assets$271 $$$16 $209 $43 $46 $11 
Operating lease liabilities
Other current liabilities52 — 15 31 
Other deferred credits and other liabilities263 195 40 49 
Total operating lease liabilities$315 $$$19 $226 $46 $57 $12 

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Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 10 — Leases
For the Year Ended December 31, 2017Beginning Balance Goodwill from business combination Impairment losses Measurement period adjustments (b) Ending Balance
PHI - Successor
         
Gross amount$4,005
 $
 $
 $
 $4,005
Accumulated impairment loss
 
 
 
 
Carrying Amount4,005
 
 
 
 4,005
          
March 24, 2016 to December 31, 2016

         
PHI - Successor
         
Gross amount
 4,016
 
 (11) 4,005
Accumulated impairment loss
 
 
 
 
Carrying amount
 4,016
 
 (11) 4,005
          
January 1, 2016 to March 23, 2016         
PHI - Predecessor
         
Gross amount1,418
 
 
 
 1,418
Accumulated impairment loss12
 
 
 
 12
Carrying amount1,406
 
 
 
 1,406
Finance Leases
PHIPepcoDPLACE
As of December 31, 2022
Finance lease ROU assets
Plant, property and equipment, net$74 $25 $31 $18 
Finance lease liabilities
Long-term debt due within one year12 
Long-term debt64 21 27 16 
Total finance lease liabilities$76 $25 $32 $19 
As of December 31, 2021
Finance lease ROU assets
Plant, property and equipment, net$73 $25 $29 $19 
Finance lease liabilities
Long-term debt due within one year10 
Long-term debt64 23 25 16 
Total finance lease liabilities$74 $26 $29 $19 
__________The weighted average remaining lease terms, in years, for operating and finance leases were as follows:
Operating Leases
Exelon ComEdPECOBGEPHIPepcoDPLACE
As of December 31, 20229.51.05.570.96.88.17.93.3
As of December 31, 20218.93.36.113.77.58.68.53.5
As of December 31, 20209.03.84.28.38.29.19.14.0
Finance Leases
PHIPepcoDPLACE
As of December 31, 20225.55.45.55.6
As of December 31, 20216.15.96.16.3
As of December 31, 20206.56.36.56.5
The weighted average discount rates for operating and finance leases were as follows:
Operating Leases
ExelonComEdPECOBGEPHIPepcoDPLACE
As of December 31, 20223.9 %2.6 %2.3 %4.5 %4.2 %4.0 %4.0 %3.3 %
As of December 31, 20214.0 %2.8 %2.2 %4.0 %4.2 %4.0 %4.0 %3.4 %
As of December 31, 20204.0 %3.0 %2.9 %3.8 %4.2 %4.0 %4.0 %3.5 %
Finance Leases
PHIPepcoDPLACE
As of December 31, 20222.3 %2.3 %2.3 %2.4 %
As of December 31, 20212.2 %2.3 %2.1 %2.1 %
As of December 31, 20202.5 %2.6 %2.4 %2.4 %
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Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 10 — Leases
Future minimum lease payments for operating and finance leases as of December 31, 2022 were as follows:
Operating Leases
YearExelon ComEdPECOBGEPHIPepcoDPLACE
2023$52 $$— $$37 $$10 $
202445 — — — 35 
202543 — — — 34 
202639 — — — 30 
202739 — — — 29 
Remaining years161 — 18 67 20 25 — 
Total379 19 232 48 62 11 
Interest73 — — 15 34 12 
Total operating lease liabilities$306 $$$$198 $40 $50 $10 

Finance Leases
YearPHIPepcoDPLACE
2023$14 $$$
202414 
202515 
202615 
202712 
Remaining years12 
Total82 28 34 20 
Interest
Total finance lease liabilities$76 $25 $32 $19 
Cash paid for amounts included in the measurement of operating and finance lease liabilities were as follows:
Operating cash flows from operating leases
ExelonComEdPECOBGEPHIPepcoDPLACE
For the year ended December 31, 2022$66 $$— $16 $37 $$$
For the year ended December 31, 202193 — 46 39 
For the year ended December 31, 202067 20 39 
Financing cash flows from finance leases
PHIPepcoDPLACE
For the year ended December 31, 2022$13 $$$
For the year ended December 31, 202110 
For the year ended December 31, 2020
ROU assets obtained in exchange for operating and finance lease obligations were as follows:
Operating Leases
ExelonComEdPECOBGEPHIPepcoDPLACE
For the year ended December 31, 2022$46 $— $— $— $$— $$
For the year ended December 31, 2021— — (1)— — 
For the year ended December 31, 2020(2)— — (1)— (1)— 
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Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 10 — Leases
Finance Leases
PHIPepcoDPLACE
For the year ended December 31, 2022$14 $$$
For the year ended December 31, 202132 12 12 
For the year ended December 31, 202029 14 
Lessor
The Registrants have operating leases for which they are the lessors. The following tables outline the significant types of leases at each registrant and other terms and conditions of their lease agreements as of December 31, 2022. ACE did not have any operating leases for which they are the lessors for the years ended December 31, 2022 and 2021. During 2020, ACE was the lessor for an operating lease, which expired in that year and resulted in less than $1 million in operating lease income.
(a)Reflects goodwill recorded in 2000 from the PECO/Unicom (predecessor parent company of ComEd) merger net of amortization, resolution of tax matters and other non-impairment-related changes as allowed under previous authoritative guidance.Exelon
ComEdPECOBGEPHIPepcoDPL
(b)Real estateRepresents various measurement period adjustments to the valuation of the fair value of the PHI assets acquired and liabilities assumed as a result of the merger.
(in years)ExelonComEdPECOBGEPHIPepcoDPL
Remaining lease terms1-801-141-80201-101-39-10
Options to extend the term5-795-795-50N/AN/AN/AN/A
The components of lease income were as follows:
Exelon ComEdPECOBGEPHIPepcoDPL
For the year ended December 31, 2022
Operating lease income$$— $— $— $$— $
Variable lease income— — — — 
For the year ended December 31, 2021
Operating lease income$$— $— $— $$— $
Variable lease income— — — — 
For the year ended December 31, 2020
Operating lease income$$— $— $— $$— $
Variable lease income— — — — 
Future minimum lease payments to be recovered under operating leases as of December 31, 2022 were as follows:
YearExelon ComEdPECOBGEPHIPepcoDPL
2023$$$— $— $$— $
2024— — — 
2025— — — — 
2026— — — — 
2027— — — — 
Remaining years27 — 23 — 22 
Total$52 $$$$44 $— $41 
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Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 11 — Asset Impairments
11. Asset Impairments (Exelon and BGE)
In the third quarter of 2022, a review of the impacts of COVID-19 on office use resulted in plans to cease the renovation and dispose of an office building at BGE before the asset was placed into service. BGE determined that the carrying value was not recoverable and that its fair value was less than carrying value. As a result, in 2022, a pre-tax impairment charge of $48 million was recorded in Operating and maintenance expense in Exelon’s and BGE’s Consolidated Statements of Operations and Comprehensive Income. The fair value used in the analysis was based on an estimate of an expected sales price. However, the office building did not meet all of the criteria for classification as held for sale as of December 31, 2022, and therefore continues to be reported within Property, plant and equipment in Exelon’s and BGE’s Balance Sheets as of December 31, 2022.

12. Intangible Assets
Goodwill (Exelon, ComEd, PHI, Pepco, DPL, and ACE)
The following table presents the gross amount, accumulated impairment loss, and carrying amount of goodwill at Exelon, ComEd, and PHI as of December 31, 2022 and 2021. There were no additions or impairments during the years ended December 31, 2022 and 2021.
Gross AmountAccumulated Impairment LossCarrying Amount
Exelon$8,613 $1,983 $6,630 
ComEd(a)
4,608 1,983 2,625 
PHI(b)
4,005 — 4,005 
__________
(a)Reflects goodwill recorded in 2000 from the PECO/Unicom merger (predecessor parent company of ComEd).
(b)Reflects goodwill recorded in 2016 from the PHI merger.
Goodwill is not amortized, but is subject to an assessment for impairment at least annually, or more frequently if events occur or circumstances change that would more likely than not reduce the fair value of the Exelon, Generation, ComEd, PHIComEd's and DPLPHI's reporting unitunits below itstheir carrying amount. Under the authoritative guidance for goodwill, aamounts. A reporting unit is an operating segment or one level below an operating segment (known as a component) and is the level at which goodwill is testedassessed for impairment. A component of an operating segment is a reporting unit if the component constitutes a business for which discrete financial information is available and its operating results are regularly reviewed by segment management. Generation'sComEd has a single operating segments are Mid-Atlantic, Midwest, New England, New York, ERCOT and all other power regions referred to collectively as “Other Power Regions”,segment. PHI's operating segments are Pepco, DPL, and ACE, and ComEd and DPL have a single operating segment.ACE. See Note 255 — Segment Information for additional information. There is no level below these operating segments for which operating results are regularly reviewed by segment management. Therefore, the ComEd, Pepco, DPL, and ACE operating segments are also considered reporting units for goodwill impairment testingassessment purposes. Exelon's and ComEd's $2.6 billion of goodwill has been assigned entirely to the ComEd reporting unit, while Exelon's and PHI's $4$4.0 billion of goodwill has been assigned to the Pepco, DPL, and ACE reporting units in the amounts of $1.7$2.1 billion, $1.1$1.4 billion, and $1.2$0.5 billion, respectively. DPL's $8 million of goodwill is assigned entirely to the DPL reporting unit.
Entities assessing goodwill for impairment have the option of first performing a qualitative assessment to determine whether a quantitative assessment is necessary. In performing aAs part of the qualitative assessment, entities should assess,assessments, Exelon, ComEd, and PHI evaluate, among other things, macroeconomicmanagement's best estimate of projected operating and capital cash flows for their businesses, outcomes of recent regulatory proceedings, changes in certain market conditions, industryincluding the discount rate and market considerations, overall financial performance, cost factorsregulated utility peer EBITDA multiples, and entity-specific events. If an entity determines, on the basis of qualitative factors, that the fair value of the reporting unit is more likely than not greater than the carrying amount, no further testing is required.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

passing margin from their last quantitative assessments performed. If an entity bypasses the qualitative assessment, or performs the qualitative assessment, but determines that it is more likely than not that its fair value is less than its carrying amount, a quantitative, two-step, fair value-based testassessment is performed. Exelon's, Generation's, ComEd's, PHI's and DPL's accounting policy is to perform a quantitative test of goodwill at least once every three years. The first step in the quantitative testperformed, which compares the fair value of the reporting unit to its carrying amount, including goodwill. If the carrying amount of the reporting unit exceeds its fair value, the second stepentity recognizes an impairment charge, which is performed. The second step requires an allocation of fair valuelimited to the individual assets and liabilities using purchase price allocation accounting guidance in order to determine the implied fair value of goodwill. If the implied fair valueamount of goodwill is less thanallocated to the carrying amount, an impairment loss is recorded as a reduction to goodwill and a charge to operating expense.reporting unit.
Application of the goodwill impairment testassessment requires management judgment, including the identification of reporting units and determining the fair value of the reporting unit, which management estimates using a weighted combination of a discounted cash flow analysis and a market multiples analysis. Significant assumptions used in these fair value analyses include discount and growth rates, utility sector market
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Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 12 — Intangible Assets
performance and transactions, projected operating and capital cash flows for Generation's, ComEd's, Pepco's, DPL's, and ACE's businesses, and the fair value of debt. In applying the second step (if needed), management must estimate the fair value of specific assets
2022 and liabilities of the reporting unit.
2017 and 20162021 Goodwill Impairment Assessment. Generation performed a quantitative test as of November 1, 2017, for its 2017 annual goodwill impairment assessment. The first step of the test comparing the estimated fair value of Generation's reporting unit with goodwill to its carrying value, including goodwill, indicated no impairments of goodwill; therefore, the second step was not required. Generation performed a qualitative test as of November 1, 2016, for its 2016 annual goodwill impairment assessment. Based on the qualitative factors assessed, Generation concluded that the fair value of its reporting units is more likely than not greater than the carrying amount,ComEd and no further testing was required.
As of November 1, 2017, ComEd, PHI and DPL each qualitatively determined that it was more likely than not that the fair valuevalues of itstheir reporting units exceeded their carrying values and, therefore, did not perform a quantitative assessment. As partassessments as of their qualitative assessments, ComEd, PHINovember 1, 2022 and DPL evaluated, among other things, management’s best estimate of projected operating and capital cash flows for their businesses, outcomes of recent regulatory proceedings, changes in certain market conditions, including the discount rate and regulated utility peer company EBITDA multiples, while also considering, the passing margin from their2021. The last quantitative assessments.
ComEd, PHI and DPLassessments performed quantitative testswere as of November 1, 2016 for their 2016 annual goodwill impairment assessments. The first step of the tests comparing the estimated fair values of the ComEd Pepco, DPL and ACE reporting units to their carrying values, including goodwill, indicated no impairments of goodwill; therefore, no second steps were required.November 1, 2018 for PHI.
While the annual assessments indicated no impairments, certain assumptions used to estimate reporting unit fair values are highly sensitive to changes. Adverse regulatory actions or changes in significant assumptions could potentially result in future impairments of Exelon's, ComEd's, and PHI’s or DPL’s goodwill, which could be material. Based on the results of the annual goodwill test performed as of November 1, 2016, the estimated fair values of the ComEd, Pepco, DPL and ACE reporting units would have needed to decrease by more than 30%, 10%, 10% and 10%, respectively, for ComEd and PHI to fail the first step of their respective impairment tests. The $8 million of goodwill recorded at DPL is related to DPL’s 1995 acquisition of the Conowingo Power Company and the fair value of the DPL reporting unit would have needed to decrease by more than 50% for DPL to fail the first step of the impairment test.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Other Intangible Assets and Liabilities (Exelon and PHI)
Exelon’s Generation’s, ComEd’s and PHI's other intangible assets, and liabilities, included in Unamortized energy contractOther current assets and liabilities and Other deferred debits and other assets in the Consolidated Balance Sheets, consisted of the following as of December 31, 2022 and 2021. Exelon's and PHI's other intangible liabilities, included in current and noncurrent Unamortized energy contract liabilities in their Consolidated Balance Sheets, consisted of the following as of December 31, 20172022 and 2016:
  December 31, 2017 December 31, 2016
  Gross Accumulated Amortization Net Gross Accumulated Amortization Net
Exelon            
Software License(a)
 $95
 $(25) $70
 $95
 $(15) $80
Generation     
     
Unamortized Energy Contracts(b)
 1,938
 (1,574) 364
 1,926
 (1,543) 383
Customer Relationships 305
 (133) 172
 299
 (109) 190
Trade Name 243
 (148) 95
 243
 (125) 118
Service Contract Backlog 
 
 
 9
 (7) 2
ComEd     
     
Chicago Settlement Agreements(c)
 162
 (141) 21
 162
 (133) 29
PHI     
     
Unamortized Energy Contracts(b)
 (1,515) 766
 (749) (1,515) 430
 (1,085)
Pepco     
     
DC Sponsorship Agreement(d)
 
 
 
 25
 
 25
Total $1,228
 $(1,255) $(27) $1,244
 $(1,502) $(258)
__________
(a)On May 31, 2015, Exelon entered into a long-term software license agreement.  Exelon is required to make payments starting August 2015 through May 2024.2021. The intangible asset recognized as a result of these payments is being amortized on a straight-line basis over the contract term.
(b)Includes unamortized energy contract assets and liabilities on Exelon's, Generations and PHI's Consolidated Balance Sheets.
(c)In March 1999 and February 2003, ComEd entered into separate agreements with the City of Chicago and Midwest Generation, LLC. Under the terms of the settlement, ComEd agreed to make payments to the City of Chicago. The intangible asset recognized as a result of the settlement agreement is being amortized ratably over the remaining term of the City of Chicago franchise agreement.
(d)PHI entered into a sponsorship agreement with the District of Columbia for future sponsorship rights associated with public property within the District of Columbia. In December 2017, the asset was written off. See Note 7 - Impairment of Long-Lived Assets and Intangibles for additional information.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table summarizes the estimated future amortization expense related to intangible assets and liabilities asshown below are amortized on a straight-line basis, except for unamortized energy contracts which are amortized in relation to the expected realization of December 31, 2017:the underlying cash flows:
For the Years Ending December 31, Exelon Generation ComEd PHI
2018 $10
 $62
 $7
 $(189)
2019 10
 57
 7
 (119)
2020 10
 68
 7
 (115)
2021 10
 77
 
 (92)
2022 10
 54
 
 (89)
December 31, 2022December 31, 2021
GrossAccumulated AmortizationNetGrossAccumulated AmortizationNet
Exelon
Unamortized Energy Contracts$(1,515)$1,470 $(45)$(1,515)$1,280 $(235)
Software License81 (61)20 81 (53)28 
Exelon Total$(1,434)$1,409 $(25)$(1,434)$1,227 $(207)
PHI
Unamortized Energy Contracts$(1,515)$1,470 $(45)$(1,515)$1,280 $(235)
The following table summarizes the amortization expense related to intangible assets and liabilities for each of the years ended December 31, 2017, 20162022, 2021, and 2015:2020:
For the Years Ended December 31,
Exelon (a)
 
Generation (a)
 ComEd
2017$92
 $83
 $7
201687
 79
 7
201576
 69
 7
For the Years Ended December 31,
Exelon(a)
PHI(a)
2022(b)
$(182)$(190)
2021(83)(92)
2020(98)(115)
__________
(a) At Exelon, amortization ofFor PHI unamortized energy contracts, totaling $35 million, $35 millionthe amortization of the fair value adjustment amounts and $22 million for the years ended December 31, 2017, 2016 and 2015, respectively, was recorded in Operating revenues orcorresponding offsetting regulatory asset amounts are amortized through Purchased power and fuel expense within Exelon’sin their Consolidated Statements of Operations and Comprehensive Income. At Generation, amortization of unamortized energy contracts totaling $35 million, $35 million and $22 million forIncome resulting in no effect to net income.
(b)On March 23, 2022, the yearsNJBPU approved a petition by ACE to terminate the provisions in its PPAs. As such, the contract was fully amortized during the year ended December 31, 2017, 2016 and 2015, respectively, was recorded in Operating revenues or Purchased power and fuel2022. See Note 3 - Regulatory Matters for additional information.
The following table summarizes the estimated future amortization expense within Generation’s Consolidated Statements of Operations and Comprehensive Income
Acquired Intangible Assets and Liabilities
Accounting guidance for business combinations requires the acquirerrelated to separately recognize identifiable intangible assets in the application of purchase accounting.
Unamortized Energy Contracts. Unamortized energy contract assets and liabilities represent the remaining unamortized fair value of non-derivative energy contracts that Exelon and Generation have acquired.The valuation of unamortized energy contracts was estimated by applying either the market approach or the income approach depending on the nature of the underlying contract. The market approach was utilized when prices and other relevant information generated by market transactions involving comparable transactions were available. Otherwise, the income approach, which is based upon discounted projected future cash flows associated with the underlying contracts, was utilized. The fair value is based upon certain unobservable inputs, which are considered Level 3 inputs, pursuant to applicable accounting guidance. Key estimates and inputs include forecasted power and fuel prices and the discount rate. The Exelon Wind unamortized energy contracts are amortized on a straight-line basis over the period in which the associated contract revenues are recognized as a decrease in Operating revenues within Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income. In the case of Antelope Valley, Constellation, CENG, Integrys and ConEdison, the fair value amounts are amortized over the life of the contract in relation to the present value of the underlying cash flows as of the acquisition dates through either Operating revenues or Purchased power and fuel expense within Exelon’s and Generation’s Consolidated StatementsDecember 31, 2022:
For the Years Ending December 31,ExelonPHI
2023$(2)$(10)
2024— (8)
2025(2)(5)
2026(5)(5)
2027(4)(4)
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Table of Operations and Comprehensive Income. At PHI, offsetting regulatory assets or liabilities were also recorded. The unamortized energy contract assets and liabilities and any corresponding regulatory assets or liabilities, respectively, are amortized over the life of the contract in relation to the expected realization of the underlying cash flows.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
Customer Relationships. The customer relationship intangibles were determined based on a “multi-period excess method”13. Income Taxes (All Registrants)
Components of Income Tax Expense or Benefit
Income tax expense (benefit) from continuing operations is comprised of the following components:
For the Year Ended December 31, 2022
 ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:
Federal
Current$(24)$29 $13 $(1)$16 $$(2)$
Deferred106 117 18 (3)(23)(2)(15)
Investment tax credit amortization(3)(1)— — (1)— — — 
State
Current(13)(6)(4)— — — — 
Deferred283 125 52 12 15 (16)14 12 
Total$349 $264 $79 $$$(9)$14 $
For the Year Ended December 31, 2021
 ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:
Federal
Current$(152)$(30)$$(18)$18 $22 $$
Deferred89 113 20 34 (52)(17)(14)(26)
Investment tax credit amortization(2)(1)— — (1)— — — 
State
Current(46)(41)— — — — 
Deferred149 131 (9)(51)77 53 12 
Total$38 $172 $12 $(35)$42 $15 $42 $(13)
For the Year Ended December 31, 2020
 ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:
Federal
Current$(180)$(24)$(7)$$25 $40 $(13)$(4)
Deferred10 112 10 (129)(62)(20)(43)
Investment tax credit amortization(3)(2)— — (1)— — — 
State
Current(37)(27)— — (5)— — — 
Deferred203 118 (24)27 33 15 
Total$(7)$177 $(30)$41 $(77)$(7)$(25)$(41)
Rate Reconciliation
The effective income approach.  Under this method,tax rate from continuing operations varies from the intangible asset’s fair value is determined to be the estimated future cash flows that will be earned on the current customer base, taking into account expected contract renewals based on customer attrition rates and costs to retain those customers.  The fair value is based upon certain unobservable inputs, which are considered Level 3 inputs, pursuant to applicable accounting guidance.  Key assumptions include the customer attritionU.S. federal statutory rate and the discount rate.  The accounting guidance requires that customer-based intangibles be amortized over the period expected to be benefited using the pattern of economic benefit.  The amortization of the customer relationships recorded in Depreciation and amortization expense within Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income.
Service Contract Backlog. The service contract backlog intangibles were determined based on a “multi-period excess method” of the income approach.  Under this method, the intangible asset’s fair value is determined to be the estimated future cash flows that will be earned on the contracts. The fair value is based upon certain unobservable inputs, which are considered Level 3 inputs, pursuant to applicable accounting guidance.  Key assumptions include estimated revenues and expenses to complete the contracts as well as the discount rate. The accounting guidance requires that customer-based intangibles be amortized over the period expected to be benefited using the pattern of economic benefit.  The amortization of the service contract backlog is recorded in Depreciation and amortization expense within Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income.
Trade Name. The Constellation trade name intangible was determined based on the relief from royalty method of income approach whereby fair value is determined to be the present value of the license fees avoided by owning the assets. The fair value is based upon certain unobservable inputs, which are considered Level 3 inputs, pursuant to applicable accounting guidance. Key assumptions include the hypothetical royalty rate and the discount rate. The Constellation trade name intangible is amortized on a straight-line basis over a period of 10 years. The amortization of the trade name is recorded in Depreciation and amortization expense within Exelon's and Generation's Consolidated Statements of Operations and Comprehensive Income.
Renewable Energy Credits and Alternative Energy Credits (Exelon, Generation, PECO, PHI, DPL and ACE)
Exelon’s, Generation’s, ComEd’s, PECO's, PHI's, DPL's and ACE's other intangible assets, included in Other current assets and Other deferred debits and other assets on the Consolidated Balance Sheets, include RECs (Exelon, Generation, ComEd, PHI, DPL and ACE) and AECs (Exelon and PECO). Purchased RECs are recorded at cost on the date they are purchased. The cost of RECs purchased on a stand-alone basis is based on the transaction price, while the cost of RECs acquired through PPAs represents the difference between the total contract price and the market price of energy at contract inception. Generally, revenue for RECs that are part of a bundled power sale is recognized when the power is produced and deliveredprincipally due to the customer, otherwise, the revenue is recognized upon physical transferfollowing:
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Table of the REC.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
For the Year Ended December 31, 2022(a)
ExelonComEd
PECO(b)
BGE(b)
PHI(b)
Pepco(b)
DPL(b)
ACE(b)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of Federal income tax benefit(c)
8.8 8.0 5.8 2.6 2.1 (4.1)6.5 6.9 
Plant basis differences(4.1)(0.6)(11.9)(1.0)(1.7)(2.7)(0.7)(0.7)
Excess deferred tax amortization(11.8)(5.6)(3.0)(19.8)(19.5)(16.8)(18.4)(24.5)
Amortization of investment tax credit, including deferred taxes on basis differences(0.1)(0.1)— (0.1)(0.1)— (0.2)(0.2)
Tax credits(d)
0.1 (0.3)— (0.7)(0.7)(0.7)(0.6)(0.5)
Other(e)
0.6 — 0.2 0.1 0.4 0.3 0.1 — 
Effective income tax rate14.5 %22.4 %12.1 %2.1 %1.5 %(3.0)%7.7 %2.0 %
For the Year Ended December 31, 2021(a)
ExelonComEd
PECO(f)
BGE(f)
PHI
Pepco(f)
DPL(f)
ACE(f)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of federal income tax benefit5.0 7.8 (1.4)(10.8)10.1 2.7 25.0 7.4 
Plant basis differences(5.4)(0.8)(13.6)(1.7)(1.1)(1.6)(0.8)(0.2)
Excess deferred tax amortization(17.2)(7.6)(3.8)(16.3)(22.4)(16.4)(20.0)(37.1)
Amortization of investment tax credit, including deferred taxes on basis differences(0.1)(0.1)— (0.1)(0.1)— (0.2)(0.2)
Tax credits(0.7)(0.5)— (0.9)(0.5)(0.5)(0.4)(0.5)
Other(0.3)(1.0)0.1 (0.6)— (0.4)0.1 (0.2)
Effective income tax rate2.3 %18.8 %2.3 %(9.4)%7.0 %4.8 %24.7 %(9.8)%
For the Year Ended December 31, 2020(a)
Exelon
ComEd(g)
PECO(g)
BGE(h)
PHI(h)
Pepco(h)
DPL(h)
ACE(h)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of federal income tax benefit11.9 11.6 (4.5)5.5 5.1 4.5 6.6 7.0 
Plant basis differences(8.6)(0.6)(18.7)(1.5)(1.6)(1.7)(0.4)(3.0)
Excess deferred tax amortization(29.1)(11.2)(4.6)(13.9)(42.0)(25.4)(51.7)(82.1)
Amortization of investment tax credit, including deferred taxes on basis differences(0.3)(0.3)— (0.1)(0.2)(0.1)(0.3)(0.5)
Tax credits(0.5)(0.3)— (0.4)(0.3)(0.3)(0.3)(0.5)
Deferred Prosecution Agreement payments3.8 6.8 — — — — — — 
Other1.2 1.8 (0.4)(0.1)(0.4)(0.7)0.1 0.4 
Effective income tax rate(0.6)%28.8 %(7.2)%10.5 %(18.4)%(2.7)%(25.0)%(57.7)%
__________
(a)Positive percentages represent income tax expense. Negative percentages represent income tax benefit.
(b)For PECO, the lower effective tax rate is primarily related to plant basis differences attributable to tax repair deductions partially offset by higher state income taxes, net of federal income tax benefit, related to a one-time expense of $38 million attributable to the change in the Pennsylvania corporate income tax rate. For BGE, PHI, Pepco, DPL, and ACE, the lower effective tax rate is primarily related to the acceleration of certain income tax benefits due to distribution and transmission rate case settlements.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 13 — Income Taxes
(c)For Exelon, the higher state income taxes, net of federal income tax benefit, is primarily due to the long-term marginal state income tax rate change of $67 million and the recognition of a valuation allowance of $40 million against the net deferred tax asset position for certain standalone state filing jurisdictions, partially offset by a one-time impact associated with a state tax benefit of $43 million and indemnification adjustments pursuant to the Tax Matters Agreement of $11 million as a result of the separation. For PECO, the higher state income taxes, net of federal income tax benefit, related to a one-time expense of $38 million attributable to the change in the Pennsylvania corporate income tax rate.
(d)For Exelon, reflects the income tax expense related to the write-off of federal tax credits subject to recapture of $15 million as a result of the separation.
(e)For Exelon, reflects the nondeductible transaction costs of approximately $12 million arising as part of the separation and indemnification adjustments pursuant to the Tax Matters Agreement of $9 million.
(f)For PECO, the lower effective tax rate is primarily related to plant basis differences attributable to tax repair deductions. For BGE, the income tax benefit is primarily due to the Maryland multi-year plan which resulted in the acceleration of certain income tax benefits. For Pepco, the lower effective tax rate is primarily related to the acceleration of certain income tax benefits due to distribution and transmission rate case settlements. For DPL, the higher effective tax rate is primarily related to a state income tax expense, net of federal income tax benefit, due to the recognition of a valuation allowance of approximately $31 million against a deferred tax asset associated with Delaware net operating loss carryforwards as a result of a change in Delaware tax law. For ACE, the income tax benefit is primarily due to a distribution rate case settlement which allows ACE to retain certain tax benefits.
(g)For ComEd, the higher effective tax rate is primarily related to the nondeductible DPA payments. For PECO, the negative effective tax rate is primarily related to an increase in plant basis differences attributable to tax repair deductions related to an increase in storms and qualifying projects in 2021.
(h)For BGE, PHI, Pepco, DPL, and ACE, the income tax benefit is primarily attributable to accelerated amortization of transmission related deferred income tax regulatory liabilities as a result of regulatory settlements. See Note 3 — Regulatory Matters for additional information.
Tax Differences and Carryforwards
The tax effects of temporary differences and carryforwards, which give rise to significant portions of the deferred tax assets (liabilities), as of December 31, 2022 and 2021 are presented below:
As of December 31, 2022
ExelonComEdPECOBGEPHIPepcoDPLACE
Plant basis differences$(12,130)$(4,823)$(2,119)$(1,949)$(3,131)$(1,394)$(906)$(813)
Accrual based contracts10 — — — 10 — — — 
Derivatives and other financial instruments26 23 — — — — — 
Deferred pension and postretirement obligation551 (300)(31)(31)(80)(76)(39)(3)
Deferred debt refinancing costs132 (5)— (2)111 (4)(2)(1)
Regulatory assets and liabilities(1,107)(131)(169)57 (50)43 11 
Tax loss carryforward, net of valuation allowances250 — 33 72 71 20 46 
Tax credit carryforward468 — — — — — — — 
Investment in partnerships(21)— — — — — — — 
Other, net591 223 73 23 182 83 16 28 
Deferred income tax liabilities (net)$(11,230)$(5,013)$(2,213)$(1,830)$(2,885)$(1,381)$(868)$(732)
Unamortized investment tax credits(14)(8)— (2)(4)(1)(1)(2)
Total deferred income tax liabilities (net) and unamortized investment tax credits$(11,244)$(5,021)$(2,213)$(1,832)$(2,889)$(1,382)$(869)$(734)

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(Dollars in millions, except per share data unless otherwise noted)

Note 13 — Income Taxes
As of December 31, 2021
ExelonComEdPECOBGEPHIPepcoDPLACE
Plant basis differences$(11,606)$(4,648)$(2,271)$(1,826)$(2,976)$(1,321)$(853)$(777)
Accrual based contracts56 — — — 56 — — — 
Derivatives and other financial instruments63 61 — — — — — 
Deferred pension and postretirement obligation641 (308)(32)(37)(90)(76)(40)(6)
Deferred debt refinancing costs146 (6)— (2)123 (2)(1)(1)
Regulatory assets and liabilities(1,130)(280)92 (53)24 55 31 
Tax loss carryforward, net of valuation allowances242 — 65 68 64 18 42 
Tax credit carryforward584 — — — — — — — 
Investment in partnerships(21)— — — — — — — 
Other, net449 216 97 21 212 99 19 34 
Deferred income tax liabilities (net)$(10,576)$(4,677)$(2,421)$(1,684)$(2,662)$(1,274)$(802)$(677)
Unamortized investment tax credits(15)(8)— (2)(5)(1)(1)(2)
Total deferred income tax liabilities (net) and
unamortized investment tax credits
$(10,591)$(4,685)$(2,421)$(1,686)$(2,667)$(1,275)$(803)$(679)
The following table summarizesprovides Exelon’s, PECO’s, BGE’s, PHI’s, Pepco’s, DPL’s, and ACE’s carryforwards, of which the state related items are presented on a post-apportioned basis, as well as, any corresponding valuation allowances as of December 31, 2022. ComEd does not have net operating losses or credit carryforwards for the year ended December 31, 2022.
ExelonPECOBGEPHIPepcoDPLACE
Federal
Federal general business credits carryforwards(a)
$468 $— $— $— $— $— $— 
State
State net operating loss carryforwards4,991 970 1,142 1,501 50 768 651 
Deferred taxes on state tax attributes (net of federal taxes)307 37 72 104 52 46 
Valuation allowance on state tax attributes (net of federal taxes)(b)
57 — 33 — 32 — 
Year in which net operating loss or credit carryforwards will begin to expire(c)
2035203220332029N/A20322031
__________
(a)For Exelon, the federal general business credit carryforward will begin expiring in 2035.
(b)For Exelon, a full valuation allowance has been recorded against certain separate company state net operating loss carryforwards that are expected to expire before realization. For PECO, a valuation allowance has been recorded against certain Pennsylvania net operating losses that are expected to expire before realization. For DPL, a full valuation allowance has been recorded against Delaware net operating losses carryforwards due to a change in Delaware tax law.
(c)A portion of Exelon's, BGE's, Pepco's, and DPL's Maryland state net operating loss carryforward have an indefinite carryforward period.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 13 — Income Taxes
Tabular Reconciliation of Unrecognized Tax Benefits
The following table presents changes in unrecognized tax benefits, for Exelon, PHI, and ACE. ComEd's, PECO's, BGE's, Pepco's, and DPL's amounts are not material.
Exelon(a)
PHIACE
Balance at January 1, 2020$95 $48 $14 
Change to positions that only affect timing
Increases based on tax positions related to 2020— — 
Increases based on tax positions prior to 202026 — 
Decreases based on tax positions prior to 2020(5)— — 
Balance at December 31, 2020125 52 15 
Change to positions that only affect timing13 
Increases based on tax positions related to 2021— 
Increases based on tax positions prior to 2021— — 
Decreases based on tax positions prior to 2021(3)— — 
Balance at December 31, 2021143 56 16 
Change to positions that only affect timing(1)
Increases based on tax positions related to 2022— 
Increases based on tax positions prior to 2022— — 
Decreases based on tax positions prior to 2022— — — 
Balance at December 31, 2022$148 $59 $17 
______
(a)As of December 31, 2022, Exelon recorded a receivable of $50 million in noncurrent Other assets in the Consolidated Balance Sheet for Constellation’s share of unrecognized tax benefits for periods prior to the separation.
Recognition of unrecognized tax benefits
The following table presents Exelon's unrecognized tax benefits that, if recognized, would decrease the effective tax rate. The Utility Registrants' amounts are not material.
Exelon
December 31, 2022$90 
December 31, 202177 
December 31, 202073 
Reasonably possible the total amount of unrecognized tax benefits could significantly increase or decrease within 12 months after the reporting date
As of December 31, 2022, ACE has approximately $14 million of unrecognized state tax benefits that could significantly decrease within the 12 months after the reporting date based on the outcome of pending court cases involving other taxpayers. The unrecognized tax benefit, if recognized, may be included in future base rates and that portion would have no impact to the effective tax rate.
Total amounts of interest and penalties recognized
The following table represents the net interest and penalties receivable (payable) related to tax positions reflected in Exelon's Consolidated Balance Sheets. The Utility Registrants' amounts are not material.
Net interest and penalties receivable as ofExelon
December 31, 2022 (a) (b)
$45 
December 31, 2021 (c)
43 
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 13 — Income Taxes
__________
(a)As of December 31, 2022, the interest receivable balance is not expected to be settled in cash within the next twelve months and is therefore classified as a noncurrent receivable.
(b)As of December 31, 2022, Exelon recorded a receivable of $1 million in noncurrent Other assets in the Consolidated Balance Sheet for Constellation's share of net interest for periods prior to the separation.
(c)As of December 31, 2021, the interest receivable balance is not expected to be settled in cash within the next twelve months and is therefore classified as a noncurrent receivable. In December of 2021, Exelon received a refund of approximately $272 million related to an interest netting refund claim.
The Registrants did not record material interest and penalty expense related to tax positions reflected in their Consolidated Balance Sheets. Interest expense and penalty expense are recorded in Interest expense, net and Other, net, respectively, in Other income and deductions in the Registrants' Consolidated Statements of Operations and Comprehensive Income.
Description of tax years open to assessment by major jurisdiction
Major JurisdictionOpen YearsRegistrants Impacted
Federal consolidated income tax returns(a)
2010-2021All Registrants
Delaware separate corporate income tax returnsSame as federalDPL
District of Columbia combined corporate income tax returns2019-2021Exelon, PHI, Pepco
Illinois unitary corporate income tax returns2012-2021Exelon, ComEd
Maryland separate company corporate net income tax returnsSame as federalBGE, Pepco, DPL
New Jersey separate corporate income tax returns2017-2018Exelon
New Jersey combined corporate income tax returns2019-2021Exelon
New Jersey separate corporate income tax returns2018-2021ACE
New York combined corporate income tax returns2015-2021Exelon
Pennsylvania separate corporate income tax returns2011-2016Exelon
Pennsylvania separate corporate income tax returns2019-2021Exelon
Pennsylvania separate corporate income tax returns2019-2021PECO
__________
(a)Certain registrants are only open to assessment for tax years since joining the Exelon federal consolidated group; BGE beginning in 2012 and PHI, Pepco, DPL, and ACE beginning in 2016.
Other Tax Matters
Separation (Exelon)
In the first quarter of 2022, in connection with the separation, Exelon recorded an income tax expense related to continuing operations of $148 million primarily due to the long-term marginal state income tax rate change of $67 million discussed further below, the recognition of valuation allowances of approximately $40 million against the net deferred tax assets positions for certain standalone state filing jurisdictions, the write-off of federal and state tax credits subject to recapture of $17 million, and nondeductible transaction costs for federal and state taxes of $24 million.
Tax Matters Agreement (Exelon)
In connection with the separation, Exelon entered into a TMA with Constellation. The TMA governs the respective rights, responsibilities, and obligations between Exelon and Constellation after the separation with respect to tax liabilities, refunds and attributes for open tax years that Constellation was part of Exelon’s consolidated group for U.S. federal, state, and local tax purposes.
Indemnification for Taxes. As a former subsidiary of Exelon, Constellation has joint and several liability with Exelon to the IRS and certain state jurisdictions relating to the taxable periods prior to the separation. The TMA specifies that Constellation is liable for their share of taxes required to be paid by Exelon with respect to taxable periods prior to the separation to the extent Constellation would have been responsible for such taxes under the existing Exelon tax sharing agreement. As a result, as of March 31, 2022, Exelon recorded a receivable of $55 million in Current other assets in the Consolidated Balance Sheet for Constellation’s share of taxes for periods
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(Dollars in millions, except per share data unless otherwise noted)

Note 13 — Income Taxes
prior to the separation. As of December 31, 2022, Exelon recorded a payable of $18 million in Current other liabilities that is due to Constellation.
Tax Refunds. The TMA specifies that Constellation is entitled to their share of any future tax refunds claimed by Exelon with respect to taxable periods prior to the separation to the extent that Constellation would have received such tax refunds under the existing Exelon tax sharing agreement.
Tax Attributes. At the date of separation certain tax attributes, primarily pre-closing tax credit carryforwards, that were generated by Constellation were required by law to be allocated to Exelon. The TMA also provides that Exelon will reimburse Constellation when those allocated tax attribute carryforwards are utilized. As of March 31, 2022, Exelon recorded a payable of $11 million and $484 million in Current other liabilities and Noncurrent other liabilities, respectively, in the Consolidated Balance Sheet for tax credit carryforwards that are expected to be utilized and reimbursed to Constellation. As of December 31, 2022, the current and noncurrent Renewablepayable amounts are $169 million and Alternative Energy Credits$362 million, respectively.
Long-Term Marginal State Income Tax Rate (All Registrants)
Quarterly, Exelon reviews and updates its marginal state income tax rates for material changes in state tax laws and state apportionment. The Registrants remeasure their existing deferred income tax balances to reflect the changes in marginal rates, which results in either an increase or a decrease to their net deferred income tax liability balances. Utility Registrants record corresponding regulatory liabilities or assets to the extent such amounts are probable of settlement or recovery through customer rates and an adjustment to income tax expense for all other amounts. In the first quarter of 2022, Exelon updated its marginal state income tax rates for changes in state apportionment due to the separation, which resulted in an increase of $67 million to the deferred tax liability at Exelon, and a corresponding adjustment to income tax expense, net of federal taxes. The impacts to ComEd, BGE, PHI, Pepco, DPL, and ACE for the years ended December 31, 20172022, 2021, and 2016:2020 were not material.
December 31, 2022Exelon
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$67 
December 31, 2021
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$27 
December 31, 2020
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$66 
Pennsylvania Corporate Income Tax Rate Change (Exelon and PECO)
On July 8, 2022, Pennsylvania enacted House Bill 1342, which will permanently reduce the corporate income tax rate from 9.99% to 4.99%. The tax rate will be reduced to 8.99% for the 2023 tax year. Starting with the 2024 tax year, the rate is reduced by 0.50% annually until it reaches 4.99% in 2031. As a result of the rate change, in the third quarter of 2022, Exelon and PECO recorded a one-time decrease to deferred income taxes of $390 million with a corresponding decrease to the deferred income taxes regulatory asset of $428 million for the amounts that are expected to be settled through future customer rates and an increase to income tax expense of $38 million (net of federal taxes). The tax rate decrease is not expected to have a material ongoing impact to Exelon’s and PECO’s financial statements. PECO did not update its marginal state income tax rates for the years ended December 31, 2021 and 2020.
Allocation of Tax Benefits (All Registrants)
The Utility Registrants are party to an agreement with Exelon and other subsidiaries of Exelon that provides for the allocation of consolidated tax liabilities and benefits (Tax Sharing Agreement). The Tax Sharing Agreement provides that each party is allocated an amount of tax similar to that which would be owed had the party been separately subject to tax. In addition, any net federal and state benefits attributable to Exelon are reallocated to the other Registrants. That allocation is treated as a contribution from Exelon to the party receiving the benefit.
The following table presents the allocation of tax benefits from Exelon under the Tax Sharing Agreement, for the year ended December 31, 2022, 2021, and 2020.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 13 — Income Taxes
 As of December 31, 2017
       Successor    
 Exelon Generation PECO PHI DPL ACE
Current AEC's$1
 $
 $1
 $
 $
 $
Noncurrent AEC's
 
 
 
 
 
Current REC's321
 312
 
 9
 8
 1
Noncurrent REC's27
 27
 
 
 
 
 As of December 31, 2016
       Successor    
 Exelon Generation PECO PHI DPL ACE
Current AEC's$1
 $
 $1
 $
 $
 $
Noncurrent AEC's
 
 
 
 
 
Current REC's330
 318
 
 12
 11
 1
Noncurrent REC's29
 29
 
 
 
 
ComEdPECOBGEPHIPepcoDPLACE
December 31, 2022(a)
$$47 $— $28 $23 $$
December 31, 2021(b)
19 — 17 16 — — 
December 31, 2020(c)
14 17 — 17 
__________
(a)BGE did not record an allocation of federal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss.
11.(b)BGE, DPL, and ACE did not record an allocation of federal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss.
(c)BGE did not record an allocation of federal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss.

14. Retirement Benefits (All Registrants)
Exelon sponsors defined benefit pension plans and OPEB plans for essentially all current employees. Substantially all non-union employees and electing union employees hired on or after January 1, 2001 participate in cash balance pension plans. Effective January 1, 2009, substantially all newly-hired union-represented employees participate in cash balance pension plans. Effective February 1, 2018 for most newly-hired BSC non-represented, non-craft, employees, January 1, 2021 for most newly-hired utility management employees, and for certain newly-hired union employees pursuant to their collective bargaining agreements, these newly-hired employees are not eligible for pension benefits, and will instead be eligible to receive an enhanced non-discretionary employer contribution in an Exelon defined contribution savings plan. Effective January 1, 2018, most newly-hired non-represented, non-craft, employees are not eligible for OPEB benefits and employees represented by Local 614 are not eligible for retiree health care benefits. Effective January 1, 2021, most non-represented, non-craft, employees who are under the age of 40 are not eligible for retiree health care benefits. Effective January 1, 2022, management employees retiring on or after that date are no longer eligible for retiree life insurance benefits.
Effective February 1, 2022, in connection with the separation, pension and OPEB obligations and assets for current and former employees of the Constellation business and certain other former employees of Exelon and its subsidiaries transferred to pension and OPEB plans and trusts maintained by Constellation or its subsidiaries. The Exelon New England Union Employees Pension Plan and Constellation Mystic Power, LLC Union Employees Pension Plan Including Plan A and Plan B were transferred. The following OPEB plans were also transferred: Constellation Mystic Power, LLC Post-Employment Medical Savings Account Plan; Exelon New England Union Post-Employment Medical Savings Account Plan; and the Nine Mile Point Nuclear Station, LLC Medical Care and Prescription Drug Plan for Retired Employees.
As a result of the separation, Exelon restructured certain of its qualified pension plans. Pension obligations and assets for current and former employees continuing with Exelon and who were participants in the Exelon Employee Pension Plan for Clinton, TMI, and Oyster Creek, Pension Plan of Constellation Energy Nuclear Group, LLC, and Nine Mile Point Pension Plan were merged into the Pension Plan of Constellation Energy Group, Inc, which was subsequently renamed, Exelon Pension Plan (EPP). Exelon employees who participated in these plans prior to the separation now participate in the EPP. The merging of the plans did not change the benefits offered to the plan participants and, thus, had no impact on Exelon's pension obligations.
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(Dollars in millions, except per share data unless otherwise noted)

Note 14 — Retirement Benefits
The tables below show the pension and OPEB plans in which employees of each operating company participated as of December 31, 2022:
Operating Company(e)
Name of Plan:ComEdPECOBGEPHIPepcoDPLACE
Qualified Pension Plans:
Exelon Corporation Retirement Program(a)
XXXXXXX
Exelon Corporation Pension Plan for Bargaining Unit Employees(a)
X
Exelon Pension Plan(b)
XXXXXXX
Pepco Holdings LLC Retirement Plan(d)
XXXXXXX
Non-Qualified Pension Plans:
Exelon Corporation Supplemental Pension Benefit Plan and 2000 Excess Benefit Plan(a)
XXX
Exelon Corporation Supplemental Management Retirement Plan(a)
XXXXX
Constellation Energy Group, Inc. Senior Executive Supplemental Plan(b)
XX
Constellation Energy Group, Inc. Supplemental Pension Plan(b)
XX
Constellation Energy Group, Inc. Benefits Restoration Plan(b)
XXX
Baltimore Gas & Electric Company Executive Benefit Plan(b)
X
Baltimore Gas & Electric Company Manager Benefit Plan(b)
XX
Pepco Holdings LLC 2011 Supplemental Executive Retirement Plan(d)
XXXX
Conectiv Supplemental Executive Retirement Plan(d)
XXX
Pepco Holdings LLC Combined Executive Retirement Plan(d)
XX
Operating Company(e)
Name of Plan:ComEdPECOBGEPHIPepcoDPLACE
OPEB Plans:
PECO Energy Company Retiree Medical Plan(a)
XXXXXXX
Exelon Corporation Health Care Program(a)
XXXXXXX
Exelon Corporation Employees’ Life Insurance Plan(a)
XXX
Exelon Corporation Health Reimbursement Arrangement Plan(a)
XXX
BGE Retiree Medical Plan(b)
XXXXXX
BGE Retiree Dental Plan(b)
X
Exelon Retiree Medical Plan of Constellation Energy Nuclear Group, LLC(c)
XXX
Exelon Retiree Dental Plan of Constellation Energy Nuclear Group, LLC(c)
XXX
Pepco Holdings LLC Welfare Plan for Retirees(d)
XXXXXXX
__________
(a)These plans are collectively referred to as the legacy Exelon plans.
(b)These plans are collectively referred to as the legacy Constellation Energy Group (CEG) Plans.
(c)These plans are collectively referred to as the legacy CENG plans.
(d)These plans are collectively referred to as the legacy PHI plans.
(e)Employees generally remain in their legacy benefit plans when transferring between operating companies.

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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 14 — Retirement Benefits
Exelon’s traditional and cash balance pension plans are intended to be tax-qualified defined benefit plans. Exelon has elected that the trusts underlying these plans be treated as qualified trusts under the IRC. If certain conditions are met, Exelon can deduct payments made to the qualified trusts, subject to certain IRC limitations.
Benefit Obligations, Plan Assets, and Funded Status
As of February 1, 2022, in connection with the separation, Exelon's pension and OPEB plans were remeasured. The remeasurement and separation resulted in a decrease to the pension obligation, net of plan assets, of $921 million and a decrease to the OPEB obligation of $893 million. Additionally, accumulated other comprehensive loss, decreased by $1,994 million (after-tax) and regulatory assets and liabilities increased by $14 million and $5 million respectively. Key assumptions were held consistent with the year end December 31, 2021 assumptions with the exception of the discount rate.
During the first quarter of 2022, Exelon received an updated valuation of its pension and OPEB to reflect actual census data as of February 1, 2022. This valuation resulted in a decrease to the pension obligations of $24 million and an increase to the OPEB obligations of $5 million. Additionally, accumulated other comprehensive loss increased by $5 million (after-tax) and regulatory assets and liabilities decreased by $30 million and $3 million, respectively.
The following tables provide a rollforward of the changes in the benefit obligations and plan assets of Exelon for the most recent two years for all plans combined:
Pension BenefitsOPEB
2022202120222021
Change in benefit obligation:
Net benefit obligation as of the beginning of year$14,236 $14,861 $2,502 $2,661 
Service cost236 294 41 51 
Interest cost439 406 76 69 
Plan participants’ contributions— — 26 32 
Actuarial (gain) loss(a)
(3,379)(442)(604)(116)
Settlements— (23)— (5)
Gross benefits paid(855)(860)(157)(190)
Net benefit obligation as of the end of year$10,677 $14,236 $1,884 $2,502 
 Pension BenefitsOPEB
2022202120222021
Change in plan assets:
Fair value of net plan assets as of the beginning of year$12,165 $11,883 $1,665 $1,635 
Actual return on plan assets(2,359)822 (225)130 
Employer contributions570 343 42 63 
Plan participants’ contributions— — 26 32 
Gross benefits paid(855)(860)(157)(190)
Settlements— (23)— (5)
Fair value of net plan assets as of the end of year$9,521 $12,165 $1,351 $1,665 
__________
(a)The pension and OPEB gains in 2022 and 2021 primarily reflect an increase in the discount rate.



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Note 14 — Retirement Benefits
Exelon presents its benefit obligations and plan assets net on its Consolidated Balance Sheets within the following line items:
 Pension BenefitsOPEB
2022202120222021
Other current liabilities$47 $20 $26 $26 
Pension obligations1,109 2,051 — — 
Non-pension postretirement benefit obligations— — 507 811 
Unfunded status (net benefit obligation less plan assets)$1,156 $2,071 $533 $837 
The following table provides the ABO and fair value of plan assets for all pension plans with an ABO in excess of plan assets. Information for pension and OPEB plans with projected benefit obligations (PBO) and accumulated postretirement benefit obligation (APBO), respectively, in excess of plan assets has been disclosed in the Obligations and Plan Assets table above as all pension and OPEB plans are underfunded.
Exelon
ABO in Excess of Plan Assets20222021
ABO$10,108 $13,497 
Fair value of net plan assets9,427 12,165 
Components of Net Periodic Benefit Costs
The majority of the 2022 pension benefit cost for the Exelon-sponsored plans is calculated using an expected long-term rate of return on plan assets of 7.00% and a discount rate of 3.24%. The majority of the 2022 OPEB cost is calculated using an expected long-term rate of return on plan assets of 6.44% for funded plans and a discount rate of 3.20%.
A portion of the net periodic benefit cost for all plans is capitalized in the Consolidated Balance Sheets. The following table presents the components of Exelon’s net periodic benefit costs, prior to capitalization, for the years ended December 31, 2022, 2021, and 2020.
Pension BenefitsOPEB
202220212020202220212020
Components of net periodic benefit cost:
Service cost$236 $294 $251 $41 $51 $56 
Interest cost439 406 476 76 69 93 
Expected return on assets(822)(843)(796)(99)(99)(101)
Amortization of:
Prior service cost (credit)(19)(25)(76)
Actuarial loss295 399 349 12 27 34 
Curtailment benefits— — — — — (1)
Settlement and other charges— — 
Net periodic benefit cost$150 $265 $289 $11 $24 $




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Note 14 — Retirement Benefits
Cost Allocation to Exelon Subsidiaries
All Registrants account for their participation in Exelon’s pension and OPEB plans by applying multi-employer accounting. Exelon allocates costs related to its pension and OPEB plans to its subsidiaries based on both active and retired employee participation in each plan.
The amounts below represent the Registrants' allocated pension and OPEB costs. For Exelon, the service cost component is included in Operating and maintenance expense and Property, plant, and equipment, net while the non-service cost components are included in Other, net and Regulatory assets. For the Utility Registrants, the service cost and non-service cost components are included in Operating and maintenance expense and Property, plant, and equipment, net in their consolidated financial statements.
For the Years Ended December 31,ExelonComEdPECOBGEPHIPepcoDPLACE
2022$161 $60 $(9)$44 $53 $$$12 
2021288 129 64 49 11 
2020296 114 64 70 15 14 
Components of AOCI and Regulatory Assets
Exelon recognizes the overfunded or underfunded status of defined benefit pension and OPEB plans as an asset or liability on its Consolidated Balance Sheets, with offsetting entries to AOCI and regulatory assets (liabilities). A portion of current year actuarial (gains) losses and prior service costs (credits) is capitalized in Exelon’s Consolidated Balance Sheets to reflect the expected regulatory recovery of these amounts, which would otherwise be recorded to AOCI. The following tables provide the components of AOCI and regulatory assets (liabilities) for Exelon for the years ended December 31, 2022, 2021, and 2020 for all plans combined. The tables include amounts related to Generation prior to the separation.
 Pension BenefitsOPEB
202220212020202220212020
Changes in plan assets and benefit obligations recognized in AOCI and regulatory assets (liabilities):
Current year actuarial (gain) loss$(226)$(700)$941 $(271)$(270)$22 
Amortization of actuarial loss(295)(598)(512)(12)(37)(49)
Separation of Constellation(2,631)— — (43)— — 
Current year prior service cost (credit)— — — — — (111)
Amortization of prior service (cost) credit(2)(3)(4)19 34 124 
Curtailments— — — — — 
Settlements— (27)(14)— (1)(1)
Total recognized in AOCI and regulatory assets (liabilities)$(3,154)$(1,328)$411 $(307)$(274)$(14)
Total recognized in AOCI$(2,719)$(747)$271 $(74)$(130)$
Total recognized in regulatory assets (liabilities)$(435)$(581)$140 $(233)$(144)$(20)
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Note 14 — Retirement Benefits
The following table provides the components of gross accumulated other comprehensive loss and regulatory assets (liabilities) for Exelon that have not been recognized as components of periodic benefit cost as of December 31, 2022 and 2021, respectively, for all plans combined:
 Pension BenefitsOPEB
2022202120222021
Prior service cost (credit)$19 $32 $(55)$(111)
Actuarial loss (gain)3,611 6,752 (133)230 
Total$3,630 $6,784 $(188)$119 
Total included in AOCI$873 $3,592 $(21)$53 
Total included in regulatory assets (liabilities)$2,757 $3,192 $(167)$66 
Average Remaining Service Period
For pension benefits, Exelon amortizes its unrecognized prior service costs (credits) and certain actuarial (gains) losses, as applicable, based on participants’ average remaining service periods.
For OPEB, Exelon amortizes its unrecognized prior service costs (credits) over participants’ average remaining service period to benefit eligibility age and amortizes certain actuarial (gains) losses over participants’ average remaining service period to expected retirement. The resulting average remaining service periods for pension and OPEB were as follows:
202220212020
Pension plans12.5 12.4 12.3 
OPEB plans:
Benefit Eligibility Age7.9 7.6 9.0 
Expected Retirement9.1 8.8 10.2 
Assumptions
The measurement of the plan obligations and costs of providing benefits under Exelon’s defined benefit and OPEB plans involves various factors, including the development of valuation assumptions and inputs and accounting policy elections. The measurement of benefit obligations and costs is impacted by several assumptions and inputs, as shown below, among other factors. When developing the required assumptions, Exelon considers historical information as well as future expectations.
Expected Rate of Return. In determining the EROA, Exelon considers historical economic indicators (including inflation and GDP growth) that impact asset returns, as well as expectations regarding future long-term capital market performance, weighted by Exelon’s target asset class allocations.
Mortality. The mortality assumption is composed of a base table that represents the current expectation of life expectancy of the population adjusted by an improvement scale that attempts to anticipate future improvements in life expectancy. For the years endedDecember 31, 2022 and 2021, Exelon’s mortality assumption utilizes the SOA 2019 base table (Pri-2012) and MP-2021 improvement scale adjusted to use Proxy SSA ultimate improvement rates.
For Exelon, the following assumptions were used to determine the benefit obligations for the plans as of December 31, 2022 and 2021. Assumptions used to determine year-end benefit obligations are the assumptions used to estimate the subsequent year’s net periodic benefit costs.
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Note 14 — Retirement Benefits
 Pension BenefitsOPEB
2022 2021 2022 2021
Discount rate(a)
5.53 %2.92 %5.51 %2.88 %
Investment crediting rate(b) 
5.07 %

3.75 %N/AN/A
Rate of compensation increase3.75 %3.75 %3.75 %3.75 %
Mortality tablePri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted) Pri-2012 table with MP- 2021 improvement scale (adjusted)
Health care cost trend on covered chargesN/AN/AInitial and ultimate rate of 5.00%

Initial and ultimate trend of 5.00%
__________
(a)The discount rates above represent the blended rates used to determine the majority of Exelon’s pension and OPEB obligations. Certain benefit plans used individual rates, which range from 5.46% - 5.60% and 5.49% - 5.51% for pension and OPEB plans, respectively, as of December 31, 2022 and 2.55% - 3.02% and 2.84% - 2.92% for pension and OPEB plans, respectively, as of December 31, 2021.
(b)The investment crediting rate above represents a weighted average rate.

The following assumptions were used to determine the net periodic benefit cost for Exelon for the years ended December 31, 2022, 2021 and 2020: 
 Pension Benefits OPEB
2022 2021 2020 2022 2021 2020
Discount rate(a)
3.24 %2.58 %3.34 %3.20 %2.51 %3.31 %
Investment crediting rate(b)
3.75 %3.72 %3.82 %N/A N/A N/A
Expected return on plan assets(c) 
7.00 %7.00 %7.00 %6.44 %6.46 %6.69 %
Rate of compensation increase3.75 %

3.75 %

3.75 % 3.75 % 3.75 % 3.75 %
Mortality tablePri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP - 2020 improvement scale (adjusted)Pri-2012 table with MP - 2019 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP - 2020 improvement scale (adjusted)Pri-2012 table with MP - 2019 improvement scale (adjusted)
Health care cost trend on covered chargesN/AN/AN/A
Initial and ultimate rate
of 5.00%
Initial and ultimate rate of 5.00%Initial and ultimate rate of 5.00%
__________
(a)The discount rates above represent the blended rates used to establish the majority of Exelon’s pension and OPEB costs. Certain benefit plans used individual rates, which range from 2.55%-3.24% and 2.84%-3.20% for pension and OPEB plans, respectively, for the year ended December 31, 2022; 2.11%-2.73% and 2.45%-2.63% for pension and OPEB plans; respectively, for the year ended December 31, 2021; and 3.02%-3.44% and 3.27%-3.40% for pension and OPEB plans, respectively, for the year ended December 31, 2020.
(b)The investment crediting rate above represents a weighted average rate.
(c)Not applicable to pension and OPEB plans that do not have plan assets.
Contributions
Exelon allocates contributions related to its legacy Exelon pension and OPEB plans to its subsidiaries based on accounting cost. For legacy CEG, CENG, FitzPatrick, and PHI plans, pension and OPEB contributions are allocated to the subsidiaries based on employee participation (both active and retired). For Exelon, in connection with the separation, additional qualified pension contributions of $207 million and $33 million were completed on February 1, 2022 and March 2, 2022, respectively. The following tables provide contributions to the pension and OPEB plans:
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Note 14 — Retirement Benefits
 Pension BenefitsOPEB
 2022202120202022 2021 2020
Exelon$570 $343 $306 $42 $63 $40 
ComEd176 174 143 22 
PECO15 17 18 — 
BGE48 57 56 20 24 22 
PHI69 39 30 
Pepco
DPL— — — — 
ACE— — — 
Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the Pension Protection Act of 2006 (the Act), management of the pension obligation, and regulatory implications. The Act requires the attainment of certain funding levels to avoid benefit restrictions (such as an inability to pay lump sums or to accrue benefits prospectively), and at-risk status (which triggers higher minimum contribution requirements and participant notification). The projected contributions below reflect a funding strategy to make annual contributions with the objective of achieving 100% funded status on an ABO basis over time. This funding strategy helps minimize volatility of future period required pension contributions. Based on this funding strategy and current market conditions, which are subject to change, Exelon’s estimated annual qualified pension contributions will be approximately $20 million in 2023. Unlike the qualified pension plans, Exelon’s non-qualified pension plans are not funded, given that they are not subject to statutory minimum contribution requirements.
While OPEB plans are also not subject to statutory minimum contribution requirements, Exelon does fund certain of its plans. For Exelon's funded OPEB plans, contributions generally equal accounting costs, however, Exelon’s management has historically considered several factors in determining the level of contributions to its OPEB plans, including liabilities management, levels of benefit claims paid, and regulatory implications (amounts deemed prudent to meet regulatory expectations and best assure continued rate recovery). The amounts below include benefit payments related to unfunded plans.
The following table provides all Registrants' planned contributions to the qualified pension plans, planned benefit payments to non-qualified pension plans, and planned contributions to OPEB plans in 2023:
Qualified Pension PlansNon-Qualified Pension PlansOPEB
Exelon$20 $48 $47 
ComEd20 19 
PECO— — 
BGE— 15 
PHI— 11 
Pepco— 11 
DPL— — — 
ACE— — — 
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Note 14 — Retirement Benefits
Estimated Future Benefit Payments
Estimated future benefit payments to participants in all of the pension plans and postretirement benefit plans as of December 31, 2022 were:
Pension BenefitsOPEB
2023$805 $152 
2024775 152 
2025789 152 
2026790 152 
2027798 153 
2028 through 20323,983 744 
Total estimated future benefits payments through 2032$7,940 $1,505 
Plan Assets
Investment Strategy. On a regular basis, Exelon evaluates its investment strategy to ensure that plan assets will be sufficient to pay plan benefits when due. As part of this ongoing evaluation, Exelon may make changes to its targeted asset allocation and investment strategy.
Exelon has developed and implemented a liability hedging investment strategy for its qualified pension plans that has reduced the volatility of its pension assets relative to its pension liabilities. Exelon is likely to continue to gradually increase the liability hedging portfolio as the funded status of its plans improves. The overall objective is to achieve attractive risk-adjusted returns that will balance the liquidity requirements of the plans’ liabilities while striving to minimize the risk of significant losses. Trust assets for Exelon’s OPEB plans are managed in a diversified investment strategy that prioritizes maximizing liquidity and returns while minimizing asset volatility.
Actual asset returns have an impact on the costs reported for the Exelon-sponsored pension and OPEB plans. The actual asset returns across Exelon’s pension and OPEB plans for the year ended December 31, 2022 were (18.69)% and (11.36)%, respectively, compared to an expected long-term return assumption of 7.00% and 6.44%, respectively. Exelon used an EROA of 7.00% and 6.50% to estimate its 2023 pension and OPEB costs, respectively.
Exelon’s pension and OPEB plan target asset allocations as of December 31, 2022 and 2021 were as follows:
December 31, 2022December 31, 2021
Asset CategoryPension BenefitsOPEBPension BenefitsOPEB
Equity securities28 %44 %35 %44 %
Fixed income securities44 %41 %41 %41 %
Alternative investments(a)
28 %15 %24 %15 %
Total100 %100 %100 %100 %
__________
(a)Alternative investments include private equity, hedge funds, real estate, and private credit.
Concentrations of Credit Risk. Exelon evaluated its pension and OPEB plans’ asset portfolios for the existence of significant concentrations of credit risk as of December 31, 2022. Types of concentrations that were evaluated include, but are not limited to, investment concentrations in a single entity, type of industry, foreign country, and individual fund. As of December 31, 2022, there were no significant concentrations (defined as greater than 10% of plan assets) of risk in Exelon’s pension and OPEB plan assets.

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Note 14 — Retirement Benefits
Fair Value Measurements
The following tables present pension and OPEB plan assets measured and recorded at fair value in Exelon's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of December 31, 2022 and 2021:
December 31, 2022December 31, 2021
Level 1Level 2Level 3Not subject to levelingTotalLevel 1Level 2Level 3Not subject to levelingTotal
Pension plan assets(a)
Cash and cash equivalents$200 $— $— $— $200 $260 $91 $— $— $351 
Equities(b)
1,448 — — 782 2,230 2,699 — 1,273 3,974 
Fixed income:
U.S. Treasury and agencies986 178 — — 1,164 1,002 176 — — 1,178 
State and municipal debt— 44 — — 44 — 47 — — 47 
Corporate debt(c)
— 1,975 12 — 1,987 — 2,523 325 — 2,848 
Other(b)
— 63 — 744 807 43 161 12 301 517 
Fixed income subtotal986 2,260 12 744 4,002 1,045 2,907 337 301 4,590 
Private equity— — — 1,169 1,169 — — — 1,124 1,124 
Hedge funds— — — 760 760 — — — 774 774 
Real estate— — — 821 821 — — — 760 760 
Private credit— — — 658 658 — — 130 603 733 
Pension plan assets subtotal2,634 2,260 12 4,934 9,840 4,004 2,998 469 4,835 12,306 
OPEB plan assets(a)
Cash and cash equivalents39 — — — 39 54 41 — — 95 
Equities305 — 273 579 387 — 324 713 
Fixed income:
U.S. Treasury and agencies17 45 — — 62 14 44 — — 58 
State and municipal debt— — — — — — 
Corporate debt(c)
— 44 — — 44 — 74 — — 74 
Other161 — 187 353 223 — 136 363 
Fixed income subtotal178 102 — 187 467 237 129 — 136 502 
Hedge funds— — — 120 120 — — — 175 175 
Real estate— — — 106 106 — — — 86 86 
Private credit— — — 39 39 — — — 84 84 
OPEB plan assets subtotal522 103 — 725 1,350 678 172 — 805 1,655 
Total pension and OPEB plan assets(d)
$3,156 $2,363 $12 $5,659 $11,190 $4,682 $3,170 $469 $5,640 $13,961 
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Note 14 — Retirement Benefits
__________
(a)See Note 17—Fair Value of Financial Assets and Liabilities for a description of levels within the fair value hierarchy.
(b)Includes derivative instruments of $11 million and $(2) million for the years ended December 31, 2022 and 2021, respectively, which have total notional amounts of $3,434 million and $3,481 million as of December 31, 2022 and 2021, respectively. The notional principal amounts for these instruments provide one measure of the transaction volume outstanding as of the fiscal years ended and do not represent the amount of the company’s exposure to credit or market loss.
(c)Includes investments in equities sold short held in investment vehicles primarily to hedge the equity option component of its convertible debt. Pension equities sold short totaled $(44) million as of December 31, 2021. OPEB equities sold short totaled $(18) million as of December 31, 2021. There were no individually held investments sold short in 2022.
(d)Excludes net liabilities of $318 million and $131 million as of December 31, 2022 and 2021, respectively, which include certain derivative assets that have notional amounts of $69 million and $127 million as of December 31, 2022 and 2021, respectively. These items are required to reconcile to the fair value of net plan assets and consist primarily of receivables or payables related to pending securities sales and purchases, interest and dividends receivable, and repurchase agreement obligations. The repurchase agreements generally have maturities ranging from 3-6 months.

The following table presents the reconciliation of Level 3 assets and liabilities for Exelon measured at fair value for pension and OPEB plans for the years ended December 31, 2022 and 2021:
Fixed IncomeEquitiesPrivate CreditTotal
Pension Assets
Balance as of January 1, 2022$337 $$130 $469 
Actual return on plan assets:
Relating to assets still held as of the
reporting date
(9)— (15)(24)
Relating to assets sold during the
period
(19)— 13 (6)
Purchases, sales and settlements:
Purchases— — 
Settlements(a)
(1)— (52)(53)
Transfers out of Level 3(b)
(296)(2)(83)(381)
Balance as of December 31, 2022$12 $— $— $12 
Fixed IncomeEquitiesPrivate CreditTotal
Pension Assets
Balance as of January 1, 2021$348 $$136 $485 
Actual return on plan assets:
Relating to assets still held as of the
reporting date
(12)— 18 
Purchases, sales and settlements:
Purchases10 — 15 
Settlements(a)
(13)— (29)(42)
Transfers into Level 3— 
Balance as of December 31, 2021$337 $$130 $469 
__________
(a)Represents cash settlements only.
(b)In 2022, transfers relate to changes in investment structure for certain investments due to the separation.

Valuation Techniques Used to Determine Fair Value
The techniques used to fair value the pension and OPEB assets invested in cash equivalents are the same as the valuation techniques used to determine the fair value of financial assets. See Cash Equivalents in Note 17 - Fair Value of Financial Assets and Liabilities for further information. Below outlines the techniques used to fair value the pension and OPEB assets invested in equities, fixed income, derivatives, private credit, private equity, and real estate investments.
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Note 14 — Retirement Benefits
Equities. These investments consist of individually held equity securities, equity mutual funds, and equity commingled funds in domestic and foreign markets. With respect to individually held equity securities, the trustees obtain prices from pricing services, whose prices are generally obtained from direct feeds from market exchanges, which Exelon is able to independently corroborate. Equity securities held individually, including real estate investment trusts, rights, and warrants, are primarily traded on exchanges that contain only actively traded securities due to the volume trading requirements imposed by these exchanges. The equity securities that are held directly by the trust funds are valued based on quoted prices in active markets and categorized as Level 1. Certain equity securities have been categorized as Level 2 because they are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities. Certain private placement equity securities are categorized as Level 3 because they are not publicly traded and are priced using significant unobservable inputs.
Equity commingled funds and mutual funds are maintained by investment companies, and fund investments are held in accordance with a stated set of fund objectives. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For equity commingled funds and mutual funds which are not publicly quoted, the fund administrators value the funds using the NAV per fund share, derived from the quoted prices in active markets on the underlying securities and are not classified within the fair value hierarchy. These investments can typically be redeemed monthly or more frequently, with 30 or less days of notice and without further restrictions.
Fixed income. For fixed income securities, which consist primarily of corporate debt securities, U.S. government securities, foreign government securities, municipal bonds, asset and mortgage-backed securities, commingled funds, mutual funds, and derivative instruments, the trustees obtain multiple prices from pricing vendors whenever possible, which enables cross-provider validations in addition to checks for unusual daily movements. A primary price source is identified based on asset type, class, or issue for each security. With respect to individually held fixed income securities, the trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the portfolio managers challenge an assigned price and the trustees determine that another price source is considered to be preferable. Exelon has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Exelon selectively corroborates the fair values of securities by comparison to other market-based price sources. Investments in U.S. Treasury securities have been categorized as Level 1 because they trade in highly-liquid and transparent markets. Certain private placement fixed income securities have been categorized as Level 3 because they are priced using certain significant unobservable inputs and are typically illiquid. The remaining fixed income securities, including certain other fixed income investments, are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized as Level 2.
Other fixed income investments primarily consist of fixed income commingled funds and mutual funds, which are maintained by investment companies and hold fund investments in accordance with a stated set of fund objectives. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For fixed income commingled funds and mutual funds which are not publicly quoted, the fund administrators value the funds using the NAV per fund share, derived from the quoted prices in active markets of the underlying securities and are not classified within the fair value hierarchy. These investments typically can be redeemed monthly or more frequently, with 30 or less days of notice and without further restrictions.
Derivative instruments. These instruments, consisting primarily of futures and swaps to manage risk, are recorded at fair value. Over-the-counter derivatives are valued daily, based on quoted prices in active markets and trade in open markets, and have been categorized as Level 1. Derivative instruments other than over-the-counter derivatives are valued based on external price data of comparable securities and have been categorized as Level 2.
Private credit. Private credit investments primarily consist of investments in private debt strategies. These investments are generally less liquid assets with an underlying term of 3 to 5 years and are intended to be held to maturity. The fair value of these investments is determined by the fund manager or administrator using a combination of valuation models including cost models, market models, and income models and typically cannot be redeemed until maturity of the term loan. Private credit investments held directly by Exelon are categorized as Level 3 because they are based largely on inputs that are unobservable and utilize complex valuation models. For managed private credit funds, the fair value is determined using a combination of valuation models including
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Note 14 — Retirement Benefits
cost models, market models, and income models and typically cannot be redeemed until maturity of the term loan. Managed private credit fund investments are not classified within the fair value hierarchy because their fair value is determined using NAV or its equivalent as a practical expedient.
Private equity. These investments include those in limited partnerships that invest in operating companies that are not publicly traded on a stock exchange such as leveraged buyouts, growth capital, venture capital, distressed investments, and investments in natural resources. These investments typically cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date, which is based on Exelon's understanding of the investment funds. Private equity valuations are reported by the fund manager and are based on the valuation of the underlying investments, which include unobservable inputs such as cost, operating results, discounted future cash flows, and market based comparable data. These valuation inputs are unobservable. The fair value of private equity investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.
Real estate. These investments are funds with a direct investment in pools of real estate properties. These funds are reported by the fund manager and are generally based on independent appraisals of the underlying investments from sources with professional qualifications, typically using a combination of market based comparable data and discounted cash flows. These valuation inputs are unobservable. Certain real estate investments cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date, which is based on Exelon's understanding of the investment funds. The remaining liquid real estate investments are generally redeemable from the investment vehicle quarterly, with 30 to 90 days of notice. The fair value of real estate investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.
Pension and OPEB assets also include investments in hedge funds. Hedge fund investments include those that employ a broad range of strategies to enhance returns and provide additional diversification. The fair value of hedge funds is determined using NAV or its equivalent as a practical expedient, and therefore, hedge funds are not classified within the fair value hierarchy. Exelon has the ability to redeem these investments at NAV or its equivalent subject to certain restrictions which may include a lock-up period or a gate.
Defined Contribution Savings Plan
The Registrants participate in a 401(k) defined contribution savings plan that is sponsored by Exelon. The plan is qualified under applicable sections of the IRC and allows employees to contribute a portion of their pre-tax and/or after-tax income in accordance with specified guidelines. All Registrants match a percentage of the employee contributions up to certain limits. The following table presents the employer contributions and employer matching contributions to the savings plan for the years ended December 31, 2022, 2021, and 2020:
For the Years Ended December 31,ExelonComEdPECOBGEPHIPepcoDPLACE
2022$91 $39 $13 $11 14 $$$
202190 35 12 12 14 
202095 36 12 13 14 

15. Derivative Financial Instruments (All Registrants)
The Registrants use derivative instruments to manage commodity price risk and interest rate risk related to ongoing business operations. The Registrants do not execute derivatives for speculative or proprietary trading purposes.
Authoritative guidance requires that derivative instruments be recognized as either assets or liabilities at fair value, with changes in fair value of the derivative recognized in earnings immediately. Other accounting treatments are available through special election and designation, provided they meet specific, restrictive criteria both at the time of designation and on an ongoing basis. These alternative permissible accounting treatments include NPNS, cash flow hedges, and fair value hedges. At ComEd, derivative economic hedges related to commodities are recorded at fair value and offset by a corresponding regulatory asset or liability. At Exelon, derivative economic hedges related to interest rates are recorded at fair value and offsets are recorded to Electric operating revenues or Interest expense based on the activity the transaction is economically hedging.
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Note 15 — Derivative Financial Instruments
For all NPNS derivative instruments, accounts receivable or accounts payable are recorded when derivatives settle and revenue or expense is recognized in earnings as the underlying physical commodity is sold or consumed. At Exelon, derivative hedges that qualify and are designated as cash flow hedges are recorded at fair value and offsets are recorded to AOCI.
ComEd’s use of cash collateral is generally unrestricted unless ComEd is downgraded below investment grade. Cash collateral held by PECO, BGE, Pepco, DPL, and ACE must be deposited in an unaffiliated major U.S. commercial bank or foreign bank with a U.S. branch office that meets certain qualifications.
Commodity Price Risk
The Registrants employ established policies and procedures to manage their risks associated with market fluctuations in commodity prices by entering into physical and financial derivative contracts, which are either determined to be non-derivative or classified as economic hedges. The Utility Registrants procure electric and natural gas supply through a competitive procurement process approved by each of the respective state utility commissions. The Utility Registrants’ hedging programs are intended to reduce exposure to energy and natural gas price volatility and have no direct earnings impact as the costs are fully recovered from customers through regulatory-approved recovery mechanisms. The following table provides a summary of the Utility Registrants’ primary derivative hedging instruments, listed by commodity and accounting treatment.
RegistrantCommodityAccounting TreatmentHedging Instrument
ComEdElectricityNPNSFixed price contracts based on all requirements in the IPA procurement plans.
Electricity
Changes in fair value of economic hedge recorded to an offsetting regulatory asset or liability(a)
20-year floating-to-fixed energy swap contracts beginning June 2012 based on the renewable energy resource procurement requirements in the Illinois Settlement Legislation of approximately 1.3 million MWhs per year.
PECOElectricityNPNSFixed price contracts for default supply requirements through full requirements contracts.
GasNPNSFixed price contracts to cover about 10% of planned natural gas purchases in support of projected firm sales.
BGEElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
GasNPNSFixed price contracts for between 10-20% of forecasted system supply requirements for flowing (i.e., non-storage) gas for the November through March period.
PepcoElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
DPLElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
GasNPNSFixed and index priced contracts through full requirements contracts.
Gas
Changes in fair value of economic hedge recorded to an offsetting regulatory asset or liability(b)
Exchange traded future contracts for up to 50% of estimated monthly purchase requirements each month, including purchases for storage injections.
ACEElectricityNPNSFixed price contracts for all BGS requirements through full requirements contracts.
_________
(a)See Note 3—Regulatory Matters for additional information.
(b)The fair value of the DPL economic hedge is not material as of December 31, 2022 and 2021.
The fair value of derivative economic hedges is presented in Other current assets and current and noncurrent Mark-to-market derivative liabilities in Exelon's and ComEd's Consolidated Balance Sheets.
Interest Rate and Other Risk (Exelon)
Exelon Corporate uses a combination of fixed-rate and variable-rate debt to manage interest rate exposure. Exelon Corporate may utilize interest rate derivatives to lock in rate levels in anticipation of future financings, which are typically designated as cash flow hedges. In addition, Exelon Corporate may also utilize interest rate
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Note 15 — Derivative Financial Instruments
swaps to manage interest rate exposure and manage potential fluctuations in Electric operating revenues at the corporate level in consolidation, which are directly correlated to yields on U.S. Treasury bonds under ComEd's distribution formula rate. These interest rate swaps are accounted for as economic hedges. A hypothetical 50 basis point change in the interest rates associated with Exelon's interest rate swaps as of December 31, 2022 would result in an immaterial impact to Exelon's Consolidated Net Income. Below is a summary of the interest rate hedge balances as of December 31, 2022. Exelon had no interest rate hedge activity in 2021.
December 31, 2022Derivatives Designated
as Hedging Instruments
Economic HedgesTotal
Other deferred debits (noncurrent assets)$$$11 
Total derivative assets11 
Mark-to-market derivative liabilities (current liabilities)— (3)(3)
Mark-to-market derivative liabilities (noncurrent liabilities)(4)— (4)
Total mark-to-market derivative liabilities(4)(3)(7)
Total mark-to-market derivative net assets$$$
Cash Flow Hedges (Interest Rate Risk)
For derivative instruments that qualify and are designated as cash flow hedges, the changes in fair value each period are initially recorded in AOCI and reclassified into earnings when the underlying transaction affects earnings. In 2022, Exelon Corporate entered into $635 million notional of 5-year maturity floating-to-fixed swaps and $635 million notional of 10-year maturity floating-to-fixed swaps, for a total of $1,270 million as of December 31, 2022. Exelon had no swaps designated as cash flow hedges as of December 31, 2021. In January 2023, Exelon Corporate entered into $115 million notional of 5-year maturity floating-to-fixed swaps and $115 million notional of 10-year maturity floating-to-fixed swaps, for a total of $230 million designated as cash flow hedges. The total notional of the swaps issued as of the balance sheet date and subsequently are $1,500 million.
The AOCI derivative gain is $2 million as of December 31, 2022. There were no amounts reclassified to Net Income in 2022. See Note 21 – Changes in Accumulated Other Comprehensive Income for additional information. Exelon had no swaps designated as cash flow hedges as of December 31, 2021.
Economic Hedges (Interest Rate and Other Risk)
Exelon Corporate executes derivative instruments to mitigate exposure to fluctuations in interest rates but for which the fair value or cash flow hedge elections were not made. For derivatives intended to serve as economic hedges, fair value is recorded on the balance sheet and changes in fair value each period are recognized in earnings or as a regulatory asset or liability, if regulatory requirements are met, each period.
Exelon Corporate enters into floating-to-fixed interest rate cap swaps to manage a portion of interest rate exposure in connection with existing borrowings. In 2022, Exelon Corporate entered into $1,000 million notional of 18-month maturity floating-to-fixed interest rate cap swaps and $850 million notional of 6-month maturity floating-to-fixed interest rate cap swaps, for a total of $1,850 million notional of floating-to-fixed interest rate cap swaps as of December 31, 2022. Exelon had no swaps as of December 31, 2021.
Additionally, to manage potential fluctuations in Electric operating revenues related to ComEd's distribution formula rate, Exelon Corporate enters into 30-year constant maturity treasury interest rate (Corporate 30-year treasury) swaps. As of December 31, 2022, Exelon Corporate entered into $500 million notional of calendar year 2023 Corporate 30-year treasury swaps. In January and February 2023, Exelon Corporate entered into a total of $1,500 million notional of calendar year 2023 Corporate 30-year treasury swaps. The total notional of the swaps issued as of the balance sheet date and subsequently are $2,000 million.


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Note 15 — Derivative Financial Instruments
For the year ended December 31, 2022, Exelon Corporate recognized the following net pre-tax mark-to-market losses which are also recognized in Net fair value changes related to derivatives in Exelon's Consolidated Statements of Cash Flows. Exelon had no swaps for the years ended December 31, 2021 and 2020.
Loss
Income Statement Location2022
Electric operating revenues$
Interest expense
Total$

Credit Risk
The Registrants would be exposed to credit-related losses in the event of non-performance by counterparties on executed derivative instruments. The credit exposure of derivative contracts, before collateral, is represented by the fair value of contracts at the reporting date. The Utility Registrants have contracts to procure electric and natural gas supply that provide suppliers with a certain amount of unsecured credit. If the exposure on the supply contract exceeds the amount of unsecured credit, the suppliers may be required to post collateral. The net credit exposure is mitigated primarily by the ability to recover procurement costs through customer rates. As of December 31, 2022, the amount of cash collateral held with external counterparties by Exelon, ComEd, BGE, PHI, Pepco, DPL, and ACE was $297 million, $77 million, $23 million, $197 million, $26 million, $121 million, and $50 million, respectively, which is recorded in Other current liabilities in Exelon's, ComEd's, BGE's, PHI's, Pepco's, DPL's, and ACE's Consolidated Balance Sheets. The amount for PECO was not material as of December 31, 2022. As of December 31, 2021, the amounts for ComEd and DPL were $41 million and $43 million, respectively. The amounts for Exelon, PECO, BGE, PHI, Pepco, and ACE were not material as of December 31, 2021.
The Utility Registrants’ electric supply procurement contracts do not contain provisions that would require them to post collateral. PECO’s, BGE’s, and DPL’s natural gas procurement contracts contain provisions that could require PECO, BGE, and DPL to post collateral in the form of cash or credit support, which vary by contract and counterparty, with thresholds contingent upon PECO’s, BGE's, and DPL’s credit rating. As of December 31, 2022, PECO, BGE, and DPL were not required to post collateral for any of these agreements. If PECO, BGE, or DPL lost their investment grade credit rating as of December 31, 2022, they could have been required to post collateral to their counterparties of $71 million, $119 million, and $15 million, respectively.

16. Debt and Credit Agreements (All Registrants)
Short-Term Borrowings
Exelon Corporate, ComEd, and BGE meet their short-term liquidity requirements primarily through the issuance of commercial paper. PECO meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the Exelon intercompany money pool. Pepco, DPL, and ACE meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the PHI intercompany money pool. PHI Corporate meets its short-term liquidity requirements primarily through the issuance of short-term notes and borrowings from the Exelon intercompany money pool. The Registrants may use their respective credit facilities for general corporate purposes, including meeting short-term funding requirements and the issuance of letters of credit.
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Note 16 — Debt and Credit Agreements
Commercial Paper
The following table reflects the Registrants' commercial paper programs supported by the revolving credit agreements and bilateral credit agreements as of December 31, 2022 and 2021:
Credit Facility Size
as of December 31,
Outstanding Commercial
Paper as of December 31,
Average Interest Rate on
Commercial Paper Borrowings
as of December 31,
Commercial Paper Issuer
2022(a)
2021(a)
2022202120222021
Exelon(b)
$4,000 $3,700 $1,938 $599 4.77 %0.35 %
ComEd1,000 1,000 427 — 4.71 %— %
PECO600 600 239 — 4.71 %— %
BGE600 600 409 130 4.81 %0.37 %
PHI(c)
900 900 414 469 4.78 %0.35 %
Pepco300 (d)300 299 175 4.79 %0.33 %
DPL300 (d)300 115 149 4.76 %0.36 %
ACE300 (d)300 — 145 — %0.35 %
__________
(a)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(b)Includes revolving credit agreements at Exelon Corporate with a maximum program size of $900 million and $600 million as of December 31, 2022 and December 31, 2021, respectively. Exelon Corporate had $449 million in outstanding commercial paper as of December 31, 2022 and no outstanding commercial paper as of December 31, 2021.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
(d)The standard maximum program size for revolving credit facilities is $300 million each for Pepco, DPL and ACE based on the credit agreements in place. However, the facilities at Pepco, DPL, and ACE have the ability to flex to $500 million, $500 million, and $350 million, respectively. The borrowing capacity may be increased or decreased during the term of the facility, except that (i) the sum of the borrowing capacity must equal the total amount of the facility, and (ii) the aggregate amount of credit used at any given time by each of Pepco, DPL, or ACE may not exceed $900 million or the maximum amount of short-term debt the company is permitted to have outstanding by its regulatory authorities. The total number of the borrowing reallocations may not exceed eight per year during the term of the facility. As of December 23, 2022, this ability was utilized to increase Pepco's program size to $400 million. As a result, the program sizes for DPL and ACE were decreased to $250 million each, which prevents the aggregate amount of outstanding short-term debt from potentially exceeding the $900 million limit.
In order to maintain their respective commercial paper programs in the amounts indicated above, each Registrant must have credit facilities in place, at least equal to the amount of its commercial paper program. A registrant does not issue commercial paper in an aggregate amount exceeding the then available capacity under its credit facility.
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Note 16 — Debt and Credit Agreements
As of December 31, 2022, the Registrants had the following aggregate bank commitments, credit facility borrowings, and available capacity under their respective credit facilities:
Available Capacity as of December 31, 2022
Borrower(a)
Facility Type
Aggregate Bank
Commitment
(b)
Facility DrawsOutstanding
Letters of Credit
Actual
To Support
Additional
Commercial
Paper
(c)
Exelon(c)
Syndicated Revolver$4,000 $— $$3,992 $2,054 
ComEdSyndicated Revolver1,000 — 995 568 
PECOSyndicated Revolver600 — — 600 361 
BGESyndicated Revolver600 — — 600 191 
PHI(d)
Syndicated Revolver900 — — 900 486 
PepcoSyndicated Revolver300 — — 300 
DPLSyndicated Revolver300 — — 300 185 
ACESyndicated Revolver300 — — 300 300 
__________
(a)On February 1, 2022, Exelon Corporate and the Utility Registrants' respective syndicated revolving credit facilities were replaced with a new 5-year revolving credit facility.
(b)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(c)Includes $900 million aggregate bank commitment related to Exelon Corporate. Exelon Corporate had $3 million outstanding letters of credit as of December 31, 2022. Exelon Corporate had $448 million in available capacity to support additional commercial paper as of December 31, 2022.
(d)Represents the consolidated amounts of Pepco, DPL, and ACE.
The following table reflects the Registrants' credit facility agreements arranged at minority and community banks as of December 31, 2022 and 2021. These are excluded from the Maximum Program Size and Aggregate Bank Commitment amounts within the two tables above and the facilities are solely used to issue letters of credit.
Aggregate Bank CommitmentsOutstanding Letters of Credit
Borrower
2022(a)
202120222021
Exelon(b)
$140 $98 $10 $
ComEd40 33 
PECO40 33 
BGE15 
PHI(c)
45 24 — — 
Pepco15 — — 
DPL15 — — 
ACE15 — — 
__________
(a)These facilities were entered into on October 7, 2022 and expire on October 6, 2023.
(b)Represents the consolidated amounts of ComEd, PECO, BGE, Pepco, DPL, and ACE.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
Revolving Credit Agreements
On February 1, 2022, Exelon Corporate and the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. The following table reflects the credit agreements:
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Note 16 — Debt and Credit Agreements
BorrowerAggregate Bank CommitmentInterest Rate
Exelon Corporate$900 SOFR plus 1.275 %
ComEd1,000 SOFR plus 1.000 %
PECO600 SOFR plus 0.900 %
BGE600 SOFR plus 0.900 %
Pepco300 SOFR plus 1.075 %
DPL300 SOFR plus 1.000 %
ACE300 SOFR plus 1.075 %
Borrowings under Exelon’s, ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's revolving credit agreements bear interest at a rate based upon either the prime rate or a SOFR-based rate, plus an adder based upon the particular Registrant’s credit rating. The adders for the prime based borrowings and SOFR-based borrowings are presented in the following table:
Exelon(a)
ComEdPECOBGEPepcoDPLACE
Prime based borrowings0 - 27.5— — — 7.5 — 7.5 
SOFR-based borrowings90.0 - 127.5100.0 90.0 90.0 107.5 100.0 107.5 
__________
(a)Includes interest rate adders at Exelon Corporate of 27.5 basis points and 127.5 basis points for prime and SOFR-based borrowings, respectively.
If any registrant loses its investment grade rating, the maximum adders for prime rate borrowings and SOFR-based rate borrowings would be 65 basis points and 165 basis points, respectively. The credit agreements also require the borrower to pay a facility fee based upon the aggregate commitments. The fee varies depending upon the respective credit ratings of the borrower.
Short-Term Loan Agreements
On March 23, 2017, Exelon Corporate entered into a term loan agreement for $500 million. The loan agreement was renewed on March 14, 2022 and will expire on March 16, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65% and all indebtedness thereunder is unsecured. The loan agreement is reflected in Exelon's Consolidated Balance Sheets within Short-term borrowings.
On March 31, 2021, Exelon Corporate entered into a 364-day term loan agreement for $150 million with a variable interest rate of LIBOR plus 0.65% and an expiration date of March 30, 2022. Exelon Corporate repaid the term loan on March 30, 2022.
In connection with the separation, on January 24, 2022, Exelon Corporate entered into a 364-day term loan agreement for $1.15 billion. The loan agreement had an expiration date of January 23, 2023. Pursuant to the loan agreement, loans made thereunder bore interest at a variable rate equal to SOFR plus 0.75% until July 23, 2022 and a rate of SOFR plus 0.975% thereafter. All indebtedness pursuant to the loan agreement was unsecured. On August 11, 2022, Exelon Corporate made a partial repayment of $575 million on the term loan. On October 11, 2022, the remaining $575 million outstanding balance was repaid in conjunction with the $500 million 18-month term loan that was entered into on October 7, 2022.
On October 4, 2022, ComEd entered into a 364-day term loan agreement for $150 million with a variable rate equal to SOFR plus 0.75% and an expiration date of October 3, 2023. The proceeds from this loan were used to repay outstanding commercial paper obligations. The loan agreement is reflected in Exelon's and ComEd's Consolidated Balance Sheets within Short-term borrowings. The balance of the loan was repaid on January 13, 2023 in conjunction with the $400 million and $575 million First Mortgage Bond agreements that were entered into on January 3, 2023.
Variable Rate Demand Bonds
DPL has outstanding obligations in respect of Variable Rate Demand Bonds (VRDB). VRDBs are subject to repayment on the demand of the holders and, for this reason, are accounted for as short-term debt in
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Note 16 — Debt and Credit Agreements
accordance with GAAP. However, these bonds may be converted to a fixed-rate, fixed-term option to establish a maturity which corresponds to the date of final maturity of the bonds. On this basis, PHI views VRDBs as a source of long-term financing. As of both December 31, 2022 and December 31, 2021, $79 million in variable rate demand bonds issued by DPL were outstanding and are included in the Long-term debt due within one year in Exelon's, PHI's, and DPL's Consolidated Balance Sheets.
Long-Term Debt
The following tables present the outstanding long-term debt at the Registrants as of December 31, 2022 and 2021:
Exelon
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)(b)
1.05 %-7.90 %2023 - 2052$22,651 $20,751 
Senior unsecured notes2.75 %-7.60 %2025 - 20528,324 6,324 
Unsecured notes2.25 %-6.35 %2023 - 20524,250 4,000 
Notes payable and other1.64 %-7.49 %2025 - 205386 86 
Junior subordinated notes3.50 %2022— 1,150 
Long-term software licensing agreement2.30 %-3.95 %2024 - 202525 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 143 
Medium-terms notes (unsecured)7.72 %202710 10 
Loan agreement2.00 %5.15 %2023 - 20241,400 50 
Total long-term debt36,779 32,523 
Unamortized debt discount and premium, net(74)(70)
Unamortized debt issuance costs(257)(220)
Fair value adjustment626 669 
Long-term debt due within one year(c)
(1,802)(2,153)
Long-term debt$35,272 $30,749 
Long-term debt to financing trusts(d)
Subordinated debentures to ComEd Financing III6.35 %2033$206 $206 
Subordinated debentures to PECO Trust III7.38 %-9.50 %202881 81 
Subordinated debentures to PECO Trust IV5.75 %2033103 103 
Total long-term debt to financing trusts$390 $390 
__________
(a)Substantially all of ComEd’s assets other than expressly excepted property and substantially all of PECO’s, Pepco's, DPL's, and ACE's assets are subject to the liens of their respective mortgage indentures.
(b)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
(c)In connection with the separation, Exelon Corporate entered into three 18-month term loan agreements. On January 21, 2022, two of the loan agreements were issued for $300 million each with an expiration date of July 21, 2023. On January 24, 2022, the third loan agreement was issued for $250 million with an expiration date of July 24, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65%.
(d)Amounts owed to these financing trusts are recorded as Long-term debt to financing trusts within Exelon’s Consolidated Balance Sheets.
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Note 16 — Debt and Credit Agreements
ComEd
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)(b)
2.20 %-6.45 %2024 - 2052$10,629 $9,879 
Other7.49 %2053
Total long-term debt10,637 9,887 
Unamortized debt discount and premium, net(27)(27)
Unamortized debt issuance costs(92)(87)
Long-term debt$10,518 $9,773 
Long-term debt to financing trust(c)
Subordinated debentures to ComEd Financing III6.35 %2033$206 $206 
Total long-term debt to financing trusts206 206 
Unamortized debt issuance costs(1)(1)
Long-term debt to financing trusts$205 $205 
__________
(a)Substantially all of ComEd’s assets, other than expressly excepted property, are subject to the lien of its mortgage indenture.
(b)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
(c)Amount owed to this financing trust is recorded as Long-term debt to financing trust within ComEd’s Consolidated Balance Sheets.
PECO
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.80 %-5.95 %2025 - 2052$4,625 $4,200 
Loan agreement2.00 %202350 50 
Total long-term debt4,675 4,250 
Unamortized debt discount and premium, net(24)(20)
Unamortized debt issuance costs(39)(33)
Long-term debt due within one year(50)(350)
Long-term debt$4,562 $3,847 
Long-term debt to financing trusts(b)
Subordinated debentures to PECO Trust III7.38 %-9.50 %2028$81 $81 
Subordinated debentures to PECO Trust IV5.75 %2033103 103 
Long-term debt to financing trusts$184 $184 
__________
(a)Substantially all of PECO’s assets are subject to the lien of its mortgage indenture.
(b)Amounts owed to this financing trust are recorded as Long-term debt to financing trusts within PECO’s Consolidated Balance Sheets.
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BGE
Maturity
Date
December 31,
Rates20222021
Long-term debt
Unsecured notes2.25 %-6.35 %2023 - 2052$4,250 $4,000 
Total long-term debt4,250 4,000 
Unamortized debt discount and premium, net(13)(12)
Unamortized debt issuance costs(30)(27)
Long-term debt due within one year(300)(250)
Long-term debt$3,907 $3,711 
PHI
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
1.05 %-7.90 %2023 - 2052$7,397 $6,672 
Senior unsecured notes7.45 %2032185 185 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 143 
Medium-terms notes (unsecured)7.72 %202710 10 
Finance leases5.59 %2025 - 203076 74 
Other(b)
7.28 %-7.49 %2022— — 
Total long-term debt7,701 7,084 
Unamortized debt discount and premium, net
Unamortized debt issuance costs(47)(36)
Fair value adjustment462 495 
Long-term debt due within one year(591)(399)
Long-term debt$7,529 $7,148 
_________
(a)Substantially all of Pepco's, DPL's, and ACE's assets are subject to the liens of their respective mortgage indentures.
(b)The amount in the Other category was zero and less than $1 million as of December 31, 2022 and December 31, 2021, respectively.
Pepco
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.32 %-7.90 %2024 - 2052$3,775 $3,350 
Unsecured tax-exempt bonds1.70 %2022— 110 
Finance leases5.59 %2025 - 202925 26 
Other(b)
7.28 %-7.49 %2022— — 
Total long-term debt3,800 3,486 
Unamortized debt discount and premium, net
Unamortized debt issuance costs(51)(43)
Long-term debt due within one year(4)(313)
Long-term debt$3,747 $3,132 
________
(a)Substantially all of Pepco's assets are subject to the lien of its mortgage indenture.
(b)The amount in the Other category was zero and less than $1 million as of December 31, 2022 and December 31, 2021, respectively.
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DPL
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
1.05 %-4.27 %2023 - 2052$1,874 $1,749 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 33 
Medium-terms notes (unsecured)7.72 %202710 10 
Finance leases5.39 %2025 - 203032 29 
Total long-term debt1,949 1,821 
Unamortized debt discount and premium, net(b)
— — 
Unamortized debt issuance costs(11)(11)
Long-term debt due within one year(584)(83)
Long-term debt$1,354 $1,727 
__________
(a)Substantially all of DPL's assets are subject to the lien of its mortgage indenture.
(b)The amount in the Unamortized debt discount and premium, net category was less than $1 million as of December 31, 2022 and 2021.
ACE
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.25 %-5.80 %2024 - 2052$1,748 $1,573 
Finance leases5.59 %2025 - 203019 19 
Total long-term debt1,767 1,592 
Unamortized debt discount and premium, net(1)(1)
Unamortized debt issuance costs(9)(9)
Long-term debt due within one year(3)(3)
Long-term debt$1,754 $1,579 
__________
(a)Substantially all of ACE's assets are subject to the lien of its mortgage indenture.
Long-term debt maturities at the Registrants in the periods 2023 through 2027 and thereafter are as follows:
YearExelon ComEdPECOBGEPHIPepcoDPLACE
2023$1,802 $— $50 $300  $591 $$584 $
20241,317 250 — —  564 405 153 
20251,414 — 350 —  242 84 153 
20261,613 500 — 350  13 
20271,021 350 — —  21 15 
Thereafter30,002 (a)9,743 (b)4,459 (c)3,600 6,270 3,379 1,254 1,452 
Total$37,169 $10,843 $4,859 $4,250 $7,701 $3,800 $1,949 $1,767 
__________
(a)Includes $390 million due to ComEd and PECO financing trusts.
(b)Includes $206 million due to ComEd financing trust.
(c)Includes $184 million due to PECO financing trusts.
Long-Term Debt to Affiliates
In connection with the debt obligations assumed by Exelon as part of the Constellation merger, Exelon and subsidiaries of Generation (former Constellation subsidiaries) entered into intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
receivable at Exelon Corporate from Generation. As of December 31, 2021, Exelon Corporate had $319 million recorded to intercompany notes receivable from Generation. In connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle the intercompany loan.
Debt Covenants
As of December 31, 2022, the Registrants are in compliance with debt covenants.

17. Fair Value of Financial Assets and Liabilities (All Registrants)
Exelon measures and classifies fair value measurements in accordance with the hierarchy as defined by GAAP. The hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows:
Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities that the Registrants have the ability to liquidate as of the reporting date.
Level 2 — inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data.
Level 3 — unobservable inputs, such as internally developed pricing models or third-party valuations for the asset or liability due to little or no market activity for the asset or liability.
Fair Value of Financial Liabilities Recorded at the Carrying AmountAmortized Cost
The following tables present the carrying amounts and fair values of the Registrants’ short-term liabilities, long-term debt, SNF obligation, and trust preferred securities (long-term debt to financing trusts or junior subordinated debentures) as of December 31, 20172022 and 2016:2021. The Registrants have no financial liabilities classified as Level 1 or measured using the NAV practical expedient.
ExelonThe carrying amounts of the Registrants’ short-term liabilities as presented in their Consolidated Balance Sheets are representative of their fair value (Level 2) because of the short-term nature of these instruments.

241



 December 31, 2017
 Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Short-term liabilities$929
 $

$929

$
 $929
Long-term debt (including amounts due within one year)(a)
34,264
 

34,735

1,970
 36,705
Long-term debt to financing trusts(b)
389
 



431
 431
SNF obligation1,147
 

936


 936

 December 31, 2016
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Short-term liabilities$1,267
 $
 $1,267
 $
 $1,267
Long-term debt (including amounts due within one year)(a)
34,005
 1,113
 31,741
 1,959
 34,813
Long-term debt to financing trusts(b)
641
 
 
 667
 667
SNF obligation1,024
 
 732
 
 732

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 17 — Fair Value of Financial Assets and Liabilities
Generation
December 31, 2022December 31, 2021
Carrying AmountFair ValueCarrying AmountFair Value
Level 2Level 3TotalLevel 2Level 3Total
Long-Term Debt, including amounts due within one year(a)
Exelon$37,074 $29,902 $2,327 $32,229 $32,902 $34,897 $2,217 $37,114 
ComEd10,518 9,006 — 9,006 9,773 11,305 — 11,305 
PECO4,612 3,864 50 3,914 4,197 4,740 50 4,790 
BGE4,207 3,613 — 3,613 3,961 4,406 — 4,406 
PHI8,120 4,507 2,277 6,784 7,547 5,970 2,167 8,137 
Pepco3,751 2,229 1,205 3,434 3,445 3,201 975 4,176 
DPL1,938 1,164 458 1,622 1,810 1,426 552 1,978 
ACE1,757 909 614 1,523 1,582 1,091 641 1,732 
Long-Term Debt to Financing Trusts
Exelon$390 $— $384 $384 $390 $— $470 $470 
ComEd205 — 204 204 205 — 248 248 
PECO184 — 180 180 184 — 222 222 
__________
(a) Includes unamortized debt issuance costs, unamortized debt discount and premium, net, purchase accounting fair value adjustments, and finance lease liabilities which are not fair valued. Refer to Note 16 — Debt and Credit Agreements for unamortized debt issuance costs, unamortized debt discount and premium, net, and purchase accounting fair value adjustments and Note 10 — Leases for finance lease liabilities.

Exelon uses the following methods and assumptions to estimate fair value of financial liabilities recorded at carrying cost:
TypeLevelRegistrantsValuation
Long-Term Debt, including amounts due within one year
Taxable Debt Securities2AllThe fair value is determined by a valuation model that is based on a conventional discounted cash flow methodology and utilizes assumptions of current market pricing curves. Exelon obtains credit spreads based on trades of existing Exelon debt securities as well as other issuers in the utility sector with similar credit ratings. The yields are then converted into discount rates of various tenors that are used for discounting the respective cash flows of the same tenor for each bond or note.
Variable Rate Financing Debt2Exelon, DPLDebt rates are reset on a regular basis and the carrying value approximates fair value.
Taxable Private Placement Debt Securities3Exelon, Pepco, DPL, ACERates are obtained similar to the process for taxable debt securities. Due to low trading volume and qualitative factors such as market conditions, low volume of investors, and investor demand, these debt securities are Level 3.
Non-Government Backed Fixed Rate Nonrecourse Debt3Exelon, PepcoFair value is based on market and quoted prices for its own and other nonrecourse debt with similar risk profiles. Given the low trading volume in the nonrecourse debt market, the price quotes used to determine fair value will reflect certain qualitative factors, such as market conditions, investor demand, new developments that might significantly impact the project cash flows or off-taker credit, and other circumstances related to the project.
Long-Term Debt to Financing Trusts
Long Term Debt to Financing Trusts3Exelon, ComEd, PECOFair value is based on publicly traded securities issued by the financing trusts. Due to low trading volume of these securities and qualitative factors, such as market conditions, investor demand, and circumstances related to each issue, this debt is classified as Level 3.

242



 December 31, 2017
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Short-term liabilities$2
 $

$2

$
 $2
Long-term debt (including amounts due within one year)(a)
8,990
 

7,839

1,673
 9,512
SNF obligation1,147
 

936


 936

 December 31, 2016
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Short-term liabilities$699
 $
 $699
 $
 $699
Long-term debt (including amounts due within one year)(a)
9,241
 
 7,482
 1,670
 9,152
SNF obligation1,024
 
 732
 
 732
ComEd
 December 31, 2017
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Long-term debt (including amounts due within one year)(a)
$7,601
 $

$8,418

$
 $8,418
Long-term debt to financing trusts(b)
205
 



227
 227
 December 31, 2016
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Long-term debt (including amounts due within one year)(a)
$7,033
 $
 $7,585
 $
 $7,585
Long-term debt to financing trusts(b)
205
 
 
 215
 215
PECO
 December 31, 2017
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Long-term debt (including amounts due within one year)(a)
$2,903
 $

$3,194

$
 $3,194
Long-term debt to financing trusts184
 



204
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Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 17 — Fair Value of Financial Assets and Liabilities
 December 31, 2016
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Long-term debt (including amounts due within one year)(a)
$2,580
 $
 $2,794
 $
 $2,794
Long-term debt to financing trusts184
 
 
 192
 192
BGE
 December 31, 2017
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Short-term liabilities$77
 $

$77

$
 $77
Long-term debt (including amounts due within one year)(a)
2,577
 

2,825


 2,825
 December 31, 2016
 
Carrying
Amount
 Fair Value
 Level 1 Level 2 Level 3 Total
Short-term liabilities$45
 $
 $45
 $
 $45
Long-term debt (including amounts due within one year)(a)
2,322
 
 2,467
 
 2,467
Long-term debt to financing trusts(b)
252
 
 
 260
 260
PHI (Successor)
 December 31, 2017
 Carrying Amount Fair Value
  Level 1 Level 2 Level 3 Total
Short-term liabilities$350
 $
 $350
 $
 $350
Long-term debt (including amounts due within one year)(a)
5,874
 
 5,722
 297
 6,019
 December 31, 2016
 Carrying Amount Fair Value
  Level 1 Level 2 Level 3 Total
Short-term liabilities$522
 $
 $522
 $
 $522
Long-term debt (including amounts due within one year)(a)
5,898
 
 5,520
 289
 5,809


Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Pepco
 December 31, 2017
 Carrying Amount Fair Value
  Level 1 Level 2 Level 3 Total
Short-term liabilities$26
 $
 $26
 $
 $26
Long-term debt (including amounts due within one year)(a)
2,540
 
 3,114
 9
 3,123
 December 31, 2016
 Carrying Amount Fair Value
  Level 1 Level 2 Level 3 Total
Short-term liabilities$23
 $
 $23
 $
 $23
Long-term debt (including amounts due within one year)(a)
2,349
 
 2,788
 8
 2,796
DPL
 December 31, 2017
 Carrying Amount Fair Value
  Level 1 Level 2 Level 3 Total
Short-term liabilities$216
 $
 $216
 $
 $216
Long-term debt (including amounts due within one year)(a)
1,300
 
 1,393
 
 1,393
 December 31, 2016
 Carrying Amount Fair Value
  Level 1 Level 2 Level 3 Total
Long-term debt (including amounts due within one year)(a)
$1,340
 $
 $1,383
 $
 $1,383
ACE
 December 31, 2017
 Carrying Amount Fair Value
  Level 1 Level 2 Level 3 Total
Short-term liabilities$108
 $
 $108
 $
 $108
Long-term debt (including amounts due within one year)(a)
1,121
 
 949
 288
 1,237
 December 31, 2016
 Carrying Amount Fair Value
  Level 1 Level 2 Level 3 Total
Long-term debt (including amounts due within one year)(a)
$1,155
 $
 $1,007
 $280
 $1,287

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

__________
(a)
Includes unamortized debt issuance costs which are not fair valued of $201 million, $60 million, $52 million, $17 million, $17 million, $6 million, $32 million, $11 million and $5 million for Exelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE respectively, as of December 31, 2017. Includes unamortized debt issuance costs which are not fair valued of $200 million, $64 million, $46 million, $15 million, $15 million, $2 million, $30 million, $11 million and $6 million for Exelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE respectively, as of December 31, 2016.
(b)Includes unamortized debt issuance costs which are not fair valued of $1 million and $1 million for Exelon and ComEd, respectively, as of December 31, 2017. Includes unamortized debt issuance costs which are not fair valued of $7 million, $1 million, and $6 million for Exelon, ComEd and BGE, respectively, as of December 31, 2016.
Short-Term Liabilities.  The short-term liabilities included in the tables above are comprised of dividends payable (included in Other current liabilities) (Level 1) and short-term borrowings (Level 2). The Registrants’ carrying amounts of the short-term liabilities are representative of fair value because of the short-term nature of these instruments.
Long-Term Debt.  The fair value amounts of Exelon’s taxable debt securities (Level 2) and private placement taxable debt securities (Level 3) are determined by a valuation model that is based on a conventional discounted cash flow methodology and utilizes assumptions of current market pricing curves. In order to incorporate the credit risk of the Registrants into the discount rates, Exelon obtains pricing (i.e., U.S. Treasury rate plus credit spread) based on trades of existing Exelon debt securities as well as debt securities of other issuers in the utility sector with similar credit ratings in both the primary and secondary market, across the Registrants’ debt maturity spectrum. The credit spreads of various tenors obtained from this information are added to the appropriate benchmark U.S. Treasury rates in order to determine the current market yields for the various tenors. The yields are then converted into discount rates of various tenors that are used for discounting the respective cash flows of the same tenor for each bond or note. Due to low trading volume of private placement debt, qualitative factors such as market conditions, low volume of investors and investor demand, this debt is classified as Level 3. The fair value of Exelon's equity units (Level 1) are valued based on publicly traded securities issued by Exelon.
The fair value of Generation’s and Pepco's non-government-backed fixed rate nonrecourse debt (Level 3) is based on market and quoted prices for its own and other nonrecourse debt with similar risk profiles. Given the low trading volume in the nonrecourse debt market, the price quotes used to determine fair value will reflect certain qualitative factors, such as market conditions, investor demand, new developments that might significantly impact the project cash flows or off-taker credit, and other circumstances related to the project (e.g., political and regulatory environment). The fair value of Generation’s government-backed fixed rate project financing debt (Level 3) is largely based on a discounted cash flow methodology that is similar to the taxable debt securities methodology described above. Due to the lack of market trading data on similar debt, the discount rates are derived based on the original loan interest rate spread to the applicable Treasury rate as well as a current market curve derived from government-backed securities. Variable rate financing debt resets on a monthly or quarterly basis and the carrying value approximates fair value (Level 2). When trading data is available on variable rate financing debt, the fair value is based on market and quoted prices for its own and other nonrecourse debt with similar risk profiles (Level 2).  Generation, Pepco, DPL and ACE also have tax-exempt debt (Level 2). Due to low trading volume in this market, qualitative factors, such as market conditions, investor demand, and circumstances related to the issuer (e.g., conduit issuer political and regulatory environment), may be incorporated into the credit spreads that are used to obtain the fair value as described above. Variable rate tax-exempt debt (Level 2) resets on a regular basis and the carrying value approximates fair value.
SNF Obligation. The carrying amount of Generation’s SNF obligation (Level 2) is derived from a contract with the DOE to provide for disposal of SNF from Generation’s nuclear generating stations. When determining the fair value of the obligation, the future carrying amount of the SNF obligation is calculated by compounding the current book value of the SNF obligation at the 13-week Treasury rate. The compounded obligation amount is discounted back to present value using Generation’s discount

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

rate, which is calculated using the same methodology as described above for the taxable debt securities, and an estimated maturity date of 2030. The carrying amount also includes $114 million as of December 31, 2017 for the one-time fee obligation associated with closing of the FitzPatrick acquisition on March 31, 2017. The fair value was determined using a similar methodology, however the New York Power Authority's (NYPA) discount rate is used in place of Generation's given the contractual right to reimbursement from NYPA for the obligation; see Note 4 - Mergers, Acquisitions and Dispositions for additional information on Generation's acquisition of FitzPatrick.
Long-Term Debt to Financing Trusts. Exelon’s long-term debt to financing trusts is valued based on publicly traded securities issued by the financing trusts. Due to low trading volume of these securities, qualitative factors, such as market conditions, investor demand, and circumstances related to each issue, this debt is classified as Level 3.
RecurringShort-Term Borrowings
Exelon Corporate, ComEd, and BGE meet their short-term liquidity requirements primarily through the issuance of commercial paper. PECO meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the Exelon intercompany money pool. Pepco, DPL, and ACE meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the PHI intercompany money pool. PHI Corporate meets its short-term liquidity requirements primarily through the issuance of short-term notes and borrowings from the Exelon intercompany money pool. The Registrants may use their respective credit facilities for general corporate purposes, including meeting short-term funding requirements and the issuance of letters of credit.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
Commercial Paper
The following table reflects the Registrants' commercial paper programs supported by the revolving credit agreements and bilateral credit agreements as of December 31, 2022 and 2021:
Credit Facility Size
as of December 31,
Outstanding Commercial
Paper as of December 31,
Average Interest Rate on
Commercial Paper Borrowings
as of December 31,
Commercial Paper Issuer
2022(a)
2021(a)
2022202120222021
Exelon(b)
$4,000 $3,700 $1,938 $599 4.77 %0.35 %
ComEd1,000 1,000 427 — 4.71 %— %
PECO600 600 239 — 4.71 %— %
BGE600 600 409 130 4.81 %0.37 %
PHI(c)
900 900 414 469 4.78 %0.35 %
Pepco300 (d)300 299 175 4.79 %0.33 %
DPL300 (d)300 115 149 4.76 %0.36 %
ACE300 (d)300 — 145 — %0.35 %
__________
(a)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(b)Includes revolving credit agreements at Exelon Corporate with a maximum program size of $900 million and $600 million as of December 31, 2022 and December 31, 2021, respectively. Exelon Corporate had $449 million in outstanding commercial paper as of December 31, 2022 and no outstanding commercial paper as of December 31, 2021.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
(d)The standard maximum program size for revolving credit facilities is $300 million each for Pepco, DPL and ACE based on the credit agreements in place. However, the facilities at Pepco, DPL, and ACE have the ability to flex to $500 million, $500 million, and $350 million, respectively. The borrowing capacity may be increased or decreased during the term of the facility, except that (i) the sum of the borrowing capacity must equal the total amount of the facility, and (ii) the aggregate amount of credit used at any given time by each of Pepco, DPL, or ACE may not exceed $900 million or the maximum amount of short-term debt the company is permitted to have outstanding by its regulatory authorities. The total number of the borrowing reallocations may not exceed eight per year during the term of the facility. As of December 23, 2022, this ability was utilized to increase Pepco's program size to $400 million. As a result, the program sizes for DPL and ACE were decreased to $250 million each, which prevents the aggregate amount of outstanding short-term debt from potentially exceeding the $900 million limit.
In order to maintain their respective commercial paper programs in the amounts indicated above, each Registrant must have credit facilities in place, at least equal to the amount of its commercial paper program. A registrant does not issue commercial paper in an aggregate amount exceeding the then available capacity under its credit facility.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
As of December 31, 2022, the Registrants had the following aggregate bank commitments, credit facility borrowings, and available capacity under their respective credit facilities:
Available Capacity as of December 31, 2022
Borrower(a)
Facility Type
Aggregate Bank
Commitment
(b)
Facility DrawsOutstanding
Letters of Credit
Actual
To Support
Additional
Commercial
Paper
(c)
Exelon(c)
Syndicated Revolver$4,000 $— $$3,992 $2,054 
ComEdSyndicated Revolver1,000 — 995 568 
PECOSyndicated Revolver600 — — 600 361 
BGESyndicated Revolver600 — — 600 191 
PHI(d)
Syndicated Revolver900 — — 900 486 
PepcoSyndicated Revolver300 — — 300 
DPLSyndicated Revolver300 — — 300 185 
ACESyndicated Revolver300 — — 300 300 
__________
(a)On February 1, 2022, Exelon Corporate and the Utility Registrants' respective syndicated revolving credit facilities were replaced with a new 5-year revolving credit facility.
(b)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(c)Includes $900 million aggregate bank commitment related to Exelon Corporate. Exelon Corporate had $3 million outstanding letters of credit as of December 31, 2022. Exelon Corporate had $448 million in available capacity to support additional commercial paper as of December 31, 2022.
(d)Represents the consolidated amounts of Pepco, DPL, and ACE.
The following table reflects the Registrants' credit facility agreements arranged at minority and community banks as of December 31, 2022 and 2021. These are excluded from the Maximum Program Size and Aggregate Bank Commitment amounts within the two tables above and the facilities are solely used to issue letters of credit.
Aggregate Bank CommitmentsOutstanding Letters of Credit
Borrower
2022(a)
202120222021
Exelon(b)
$140 $98 $10 $
ComEd40 33 
PECO40 33 
BGE15 
PHI(c)
45 24 — — 
Pepco15 — — 
DPL15 — — 
ACE15 — — 
__________
(a)These facilities were entered into on October 7, 2022 and expire on October 6, 2023.
(b)Represents the consolidated amounts of ComEd, PECO, BGE, Pepco, DPL, and ACE.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
Revolving Credit Agreements
On February 1, 2022, Exelon Corporate and the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. The following table reflects the credit agreements:
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
BorrowerAggregate Bank CommitmentInterest Rate
Exelon Corporate$900 SOFR plus 1.275 %
ComEd1,000 SOFR plus 1.000 %
PECO600 SOFR plus 0.900 %
BGE600 SOFR plus 0.900 %
Pepco300 SOFR plus 1.075 %
DPL300 SOFR plus 1.000 %
ACE300 SOFR plus 1.075 %
Borrowings under Exelon’s, ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's revolving credit agreements bear interest at a rate based upon either the prime rate or a SOFR-based rate, plus an adder based upon the particular Registrant’s credit rating. The adders for the prime based borrowings and SOFR-based borrowings are presented in the following table:
Exelon(a)
ComEdPECOBGEPepcoDPLACE
Prime based borrowings0 - 27.5— — — 7.5 — 7.5 
SOFR-based borrowings90.0 - 127.5100.0 90.0 90.0 107.5 100.0 107.5 
__________
(a)Includes interest rate adders at Exelon Corporate of 27.5 basis points and 127.5 basis points for prime and SOFR-based borrowings, respectively.
If any registrant loses its investment grade rating, the maximum adders for prime rate borrowings and SOFR-based rate borrowings would be 65 basis points and 165 basis points, respectively. The credit agreements also require the borrower to pay a facility fee based upon the aggregate commitments. The fee varies depending upon the respective credit ratings of the borrower.
Short-Term Loan Agreements
On March 23, 2017, Exelon Corporate entered into a term loan agreement for $500 million. The loan agreement was renewed on March 14, 2022 and will expire on March 16, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65% and all indebtedness thereunder is unsecured. The loan agreement is reflected in Exelon's Consolidated Balance Sheets within Short-term borrowings.
On March 31, 2021, Exelon Corporate entered into a 364-day term loan agreement for $150 million with a variable interest rate of LIBOR plus 0.65% and an expiration date of March 30, 2022. Exelon Corporate repaid the term loan on March 30, 2022.
In connection with the separation, on January 24, 2022, Exelon Corporate entered into a 364-day term loan agreement for $1.15 billion. The loan agreement had an expiration date of January 23, 2023. Pursuant to the loan agreement, loans made thereunder bore interest at a variable rate equal to SOFR plus 0.75% until July 23, 2022 and a rate of SOFR plus 0.975% thereafter. All indebtedness pursuant to the loan agreement was unsecured. On August 11, 2022, Exelon Corporate made a partial repayment of $575 million on the term loan. On October 11, 2022, the remaining $575 million outstanding balance was repaid in conjunction with the $500 million 18-month term loan that was entered into on October 7, 2022.
On October 4, 2022, ComEd entered into a 364-day term loan agreement for $150 million with a variable rate equal to SOFR plus 0.75% and an expiration date of October 3, 2023. The proceeds from this loan were used to repay outstanding commercial paper obligations. The loan agreement is reflected in Exelon's and ComEd's Consolidated Balance Sheets within Short-term borrowings. The balance of the loan was repaid on January 13, 2023 in conjunction with the $400 million and $575 million First Mortgage Bond agreements that were entered into on January 3, 2023.
Variable Rate Demand Bonds
DPL has outstanding obligations in respect of Variable Rate Demand Bonds (VRDB). VRDBs are subject to repayment on the demand of the holders and, for this reason, are accounted for as short-term debt in
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(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
accordance with GAAP. However, these bonds may be converted to a fixed-rate, fixed-term option to establish a maturity which corresponds to the date of final maturity of the bonds. On this basis, PHI views VRDBs as a source of long-term financing. As of both December 31, 2022 and December 31, 2021, $79 million in variable rate demand bonds issued by DPL were outstanding and are included in the Long-term debt due within one year in Exelon's, PHI's, and DPL's Consolidated Balance Sheets.
Long-Term Debt
The following tables present the outstanding long-term debt at the Registrants as of December 31, 2022 and 2021:
Exelon
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)(b)
1.05 %-7.90 %2023 - 2052$22,651 $20,751 
Senior unsecured notes2.75 %-7.60 %2025 - 20528,324 6,324 
Unsecured notes2.25 %-6.35 %2023 - 20524,250 4,000 
Notes payable and other1.64 %-7.49 %2025 - 205386 86 
Junior subordinated notes3.50 %2022— 1,150 
Long-term software licensing agreement2.30 %-3.95 %2024 - 202525 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 143 
Medium-terms notes (unsecured)7.72 %202710 10 
Loan agreement2.00 %5.15 %2023 - 20241,400 50 
Total long-term debt36,779 32,523 
Unamortized debt discount and premium, net(74)(70)
Unamortized debt issuance costs(257)(220)
Fair value adjustment626 669 
Long-term debt due within one year(c)
(1,802)(2,153)
Long-term debt$35,272 $30,749 
Long-term debt to financing trusts(d)
Subordinated debentures to ComEd Financing III6.35 %2033$206 $206 
Subordinated debentures to PECO Trust III7.38 %-9.50 %202881 81 
Subordinated debentures to PECO Trust IV5.75 %2033103 103 
Total long-term debt to financing trusts$390 $390 
__________
(a)Substantially all of ComEd’s assets other than expressly excepted property and substantially all of PECO’s, Pepco's, DPL's, and ACE's assets are subject to the liens of their respective mortgage indentures.
(b)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
(c)In connection with the separation, Exelon Corporate entered into three 18-month term loan agreements. On January 21, 2022, two of the loan agreements were issued for $300 million each with an expiration date of July 21, 2023. On January 24, 2022, the third loan agreement was issued for $250 million with an expiration date of July 24, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65%.
(d)Amounts owed to these financing trusts are recorded as Long-term debt to financing trusts within Exelon’s Consolidated Balance Sheets.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
ComEd
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)(b)
2.20 %-6.45 %2024 - 2052$10,629 $9,879 
Other7.49 %2053
Total long-term debt10,637 9,887 
Unamortized debt discount and premium, net(27)(27)
Unamortized debt issuance costs(92)(87)
Long-term debt$10,518 $9,773 
Long-term debt to financing trust(c)
Subordinated debentures to ComEd Financing III6.35 %2033$206 $206 
Total long-term debt to financing trusts206 206 
Unamortized debt issuance costs(1)(1)
Long-term debt to financing trusts$205 $205 
__________
(a)Substantially all of ComEd’s assets, other than expressly excepted property, are subject to the lien of its mortgage indenture.
(b)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
(c)Amount owed to this financing trust is recorded as Long-term debt to financing trust within ComEd’s Consolidated Balance Sheets.
PECO
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.80 %-5.95 %2025 - 2052$4,625 $4,200 
Loan agreement2.00 %202350 50 
Total long-term debt4,675 4,250 
Unamortized debt discount and premium, net(24)(20)
Unamortized debt issuance costs(39)(33)
Long-term debt due within one year(50)(350)
Long-term debt$4,562 $3,847 
Long-term debt to financing trusts(b)
Subordinated debentures to PECO Trust III7.38 %-9.50 %2028$81 $81 
Subordinated debentures to PECO Trust IV5.75 %2033103 103 
Long-term debt to financing trusts$184 $184 
__________
(a)Substantially all of PECO’s assets are subject to the lien of its mortgage indenture.
(b)Amounts owed to this financing trust are recorded as Long-term debt to financing trusts within PECO’s Consolidated Balance Sheets.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
BGE
Maturity
Date
December 31,
Rates20222021
Long-term debt
Unsecured notes2.25 %-6.35 %2023 - 2052$4,250 $4,000 
Total long-term debt4,250 4,000 
Unamortized debt discount and premium, net(13)(12)
Unamortized debt issuance costs(30)(27)
Long-term debt due within one year(300)(250)
Long-term debt$3,907 $3,711 
PHI
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
1.05 %-7.90 %2023 - 2052$7,397 $6,672 
Senior unsecured notes7.45 %2032185 185 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 143 
Medium-terms notes (unsecured)7.72 %202710 10 
Finance leases5.59 %2025 - 203076 74 
Other(b)
7.28 %-7.49 %2022— — 
Total long-term debt7,701 7,084 
Unamortized debt discount and premium, net
Unamortized debt issuance costs(47)(36)
Fair value adjustment462 495 
Long-term debt due within one year(591)(399)
Long-term debt$7,529 $7,148 
_________
(a)Substantially all of Pepco's, DPL's, and ACE's assets are subject to the liens of their respective mortgage indentures.
(b)The amount in the Other category was zero and less than $1 million as of December 31, 2022 and December 31, 2021, respectively.
Pepco
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.32 %-7.90 %2024 - 2052$3,775 $3,350 
Unsecured tax-exempt bonds1.70 %2022— 110 
Finance leases5.59 %2025 - 202925 26 
Other(b)
7.28 %-7.49 %2022— — 
Total long-term debt3,800 3,486 
Unamortized debt discount and premium, net
Unamortized debt issuance costs(51)(43)
Long-term debt due within one year(4)(313)
Long-term debt$3,747 $3,132 
________
(a)Substantially all of Pepco's assets are subject to the lien of its mortgage indenture.
(b)The amount in the Other category was zero and less than $1 million as of December 31, 2022 and December 31, 2021, respectively.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
DPL
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
1.05 %-4.27 %2023 - 2052$1,874 $1,749 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 33 
Medium-terms notes (unsecured)7.72 %202710 10 
Finance leases5.39 %2025 - 203032 29 
Total long-term debt1,949 1,821 
Unamortized debt discount and premium, net(b)
— — 
Unamortized debt issuance costs(11)(11)
Long-term debt due within one year(584)(83)
Long-term debt$1,354 $1,727 
__________
(a)Substantially all of DPL's assets are subject to the lien of its mortgage indenture.
(b)The amount in the Unamortized debt discount and premium, net category was less than $1 million as of December 31, 2022 and 2021.
ACE
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.25 %-5.80 %2024 - 2052$1,748 $1,573 
Finance leases5.59 %2025 - 203019 19 
Total long-term debt1,767 1,592 
Unamortized debt discount and premium, net(1)(1)
Unamortized debt issuance costs(9)(9)
Long-term debt due within one year(3)(3)
Long-term debt$1,754 $1,579 
__________
(a)Substantially all of ACE's assets are subject to the lien of its mortgage indenture.
Long-term debt maturities at the Registrants in the periods 2023 through 2027 and thereafter are as follows:
YearExelon ComEdPECOBGEPHIPepcoDPLACE
2023$1,802 $— $50 $300  $591 $$584 $
20241,317 250 — —  564 405 153 
20251,414 — 350 —  242 84 153 
20261,613 500 — 350  13 
20271,021 350 — —  21 15 
Thereafter30,002 (a)9,743 (b)4,459 (c)3,600 6,270 3,379 1,254 1,452 
Total$37,169 $10,843 $4,859 $4,250 $7,701 $3,800 $1,949 $1,767 
__________
(a)Includes $390 million due to ComEd and PECO financing trusts.
(b)Includes $206 million due to ComEd financing trust.
(c)Includes $184 million due to PECO financing trusts.
Long-Term Debt to Affiliates
In connection with the debt obligations assumed by Exelon as part of the Constellation merger, Exelon and subsidiaries of Generation (former Constellation subsidiaries) entered into intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
receivable at Exelon Corporate from Generation. As of December 31, 2021, Exelon Corporate had $319 million recorded to intercompany notes receivable from Generation. In connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle the intercompany loan.
Debt Covenants
As of December 31, 2022, the Registrants are in compliance with debt covenants.

17. Fair Value Measurementsof Financial Assets and Liabilities (All Registrants)
Exelon records themeasures and classifies fair value of assets and liabilitiesmeasurements in accordance with the hierarchy establishedas defined by the authoritative guidance for fair value measurements.GAAP. The hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows:
Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities that the Registrants have the ability to liquidate as of the reporting date.
Level 2 — inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data.
Level 3 — unobservable inputs, such as internally developed pricing models or third-party valuations for the asset or liability due to little or no market activity for the asset or liability.
Transfers in and outFair Value of levels are recognized as of the end of the reporting period when the transfer occurred. Given derivatives categorized within Level 1 are valued using exchange-based quoted prices within observable periods, transfers between Level 2 and Level 1 were not material. Additionally, there were no material transfers between Level 1 and Level 2 during the years ended December 31, 2017 and 2016 for Cash equivalents, Nuclear decommissioning trust fund investments, Pledged assets for Zion Station decommissioning, Rabbi trust investments, and Deferred compensation obligations. For derivative contracts, transfers into Level 2 from Level 3 generally occur when the contract tenor becomes more observable and due to changes in market liquidity or assumptions for certain commodity contracts.
Generation and Exelon
In accordance with the applicable guidance on fair value measurement, certain investments that are measuredFinancial Liabilities Recorded at fair value using the NAV per share as a practical expedient are no longer classified within the fair value hierarchy and are included under "Not subject to leveling" in the table below.Amortized Cost
The following tables present assetsthe carrying amounts and fair values of the Registrants’ short-term liabilities, measuredlong-term debt, and recorded at fair value on Exelon's and Generation’s Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchytrust preferred securities (long-term debt to financing trusts or junior subordinated debentures) as of December 31, 20172022 and 2016:2021. The Registrants have no financial liabilities classified as Level 1 or measured using the NAV practical expedient.
The carrying amounts of the Registrants’ short-term liabilities as presented in their Consolidated Balance Sheets are representative of their fair value (Level 2) because of the short-term nature of these instruments.

241




 Generation Exelon
As of December 31, 2017Level 1 Level 2 Level 3 Not subject to leveling Total Level 1 Level 2 Level 3 Not subject to leveling Total
Assets                   
Cash equivalents(a)
$168
 $
 $
 $
 $168
 $656
 $
 $
 $
 $656

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 17 — Fair Value of Financial Assets and Liabilities
December 31, 2022December 31, 2021
Carrying AmountFair ValueCarrying AmountFair Value
Level 2Level 3TotalLevel 2Level 3Total
Long-Term Debt, including amounts due within one year(a)
Exelon$37,074 $29,902 $2,327 $32,229 $32,902 $34,897 $2,217 $37,114 
ComEd10,518 9,006 — 9,006 9,773 11,305 — 11,305 
PECO4,612 3,864 50 3,914 4,197 4,740 50 4,790 
BGE4,207 3,613 — 3,613 3,961 4,406 — 4,406 
PHI8,120 4,507 2,277 6,784 7,547 5,970 2,167 8,137 
Pepco3,751 2,229 1,205 3,434 3,445 3,201 975 4,176 
DPL1,938 1,164 458 1,622 1,810 1,426 552 1,978 
ACE1,757 909 614 1,523 1,582 1,091 641 1,732 
Long-Term Debt to Financing Trusts
Exelon$390 $— $384 $384 $390 $— $470 $470 
ComEd205 — 204 204 205 — 248 248 
PECO184 — 180 180 184 — 222 222 
__________
(a) Includes unamortized debt issuance costs, unamortized debt discount and premium, net, purchase accounting fair value adjustments, and finance lease liabilities which are not fair valued. Refer to Note 16 — Debt and Credit Agreements for unamortized debt issuance costs, unamortized debt discount and premium, net, and purchase accounting fair value adjustments and Note 10 — Leases for finance lease liabilities.

Exelon uses the following methods and assumptions to estimate fair value of financial liabilities recorded at carrying cost:
TypeLevelRegistrantsValuation
Long-Term Debt, including amounts due within one year
Taxable Debt Securities2AllThe fair value is determined by a valuation model that is based on a conventional discounted cash flow methodology and utilizes assumptions of current market pricing curves. Exelon obtains credit spreads based on trades of existing Exelon debt securities as well as other issuers in the utility sector with similar credit ratings. The yields are then converted into discount rates of various tenors that are used for discounting the respective cash flows of the same tenor for each bond or note.
Variable Rate Financing Debt2Exelon, DPLDebt rates are reset on a regular basis and the carrying value approximates fair value.
Taxable Private Placement Debt Securities3Exelon, Pepco, DPL, ACERates are obtained similar to the process for taxable debt securities. Due to low trading volume and qualitative factors such as market conditions, low volume of investors, and investor demand, these debt securities are Level 3.
Non-Government Backed Fixed Rate Nonrecourse Debt3Exelon, PepcoFair value is based on market and quoted prices for its own and other nonrecourse debt with similar risk profiles. Given the low trading volume in the nonrecourse debt market, the price quotes used to determine fair value will reflect certain qualitative factors, such as market conditions, investor demand, new developments that might significantly impact the project cash flows or off-taker credit, and other circumstances related to the project.
Long-Term Debt to Financing Trusts
Long Term Debt to Financing Trusts3Exelon, ComEd, PECOFair value is based on publicly traded securities issued by the financing trusts. Due to low trading volume of these securities and qualitative factors, such as market conditions, investor demand, and circumstances related to each issue, this debt is classified as Level 3.

242




 Generation Exelon
As of December 31, 2017Level 1 Level 2 Level 3 Not subject to leveling Total Level 1 Level 2 Level 3 Not subject to leveling Total
NDT fund investments        

         

Cash equivalents(b)
135
 85
 
 
 220
 135
 85
 
 
 220
Equities4,163
 915
 
 2,176
 7,254
 4,163
 915
 
 2,176
 7,254
Fixed income
 
 
   

 
 
 
   

Corporate debt
 1,614
 251
 
 1,865
 
 1,614
 251
 
 1,865
U.S. Treasury and agencies1,917
 52
 
 
 1,969
 1,917
 52
 
 
 1,969
Foreign governments
 82
 
 
 82
 
 82
 
 
 82
State and municipal debt
 263
 
 
 263
 
 263
 
 
 263
Other(c)

 47
 
 510
 557
 
 47
 
 510

557
Fixed income subtotal1,917
 2,058
 251

510
 4,736
 1,917
 2,058
 251
 510
 4,736
Middle market lending
 
 397
 131
 528
 
 
 397
 131
 528
Private equity
 
 
 222
 222
 
 
 
 222
 222
Real estate
 
 
 471
 471
 
 
 
 471
 471
NDT fund investments subtotal(d)
6,215
 3,058
 648
 3,510

13,431

6,215
 3,058
 648

3,510

13,431
Pledged assets for Zion Station decommissioning
 
 
   
 
 
 
   
Cash equivalents2
 
 
 
 2
 2
 
 
 
 2
Equities
 1
 
 
 1
 
 1
 
 
 1
Middle market lending
 
 12
 24
 36
 
 
 12
 24
 36
Pledged assets for Zion Station decommissioning subtotal2
 1
 12

24

39

2
 1
 12

24

39
Rabbi trust investments
 
 
   
 
 
 
   
Cash equivalents5
 
 
 
 5
 77
 
 
 
 77
Mutual funds23
 
 
 
 23
 58
 
 
 
 58
Fixed income
 
 
 
 
 
 12
 
 
 12
Life insurance contracts
 22
 
 
 22
 
 71
 22
 
 93
Rabbi trust investments subtotal28
 22
 
 

50

135
 83
 22
 

240
Commodity derivative assets
 
 
   

 
 
 
   

Economic hedges557
 2,378
 1,290
 
 4,225
 557
 2,378
 1,290
 
 4,225
Proprietary trading2
 31
 35
 
 68
 2
 31
 35
 
 68
Effect of netting and allocation of
collateral
(e)(f)
(585) (1,769) (635) 
 (2,989) (585) (1,769) (635) 
 (2,989)
Commodity derivative assets subtotal(26) 640
 690



1,304

(26) 640
 690



1,304

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


 Generation Exelon
As of December 31, 2017Level 1 Level 2 Level 3 Not subject to leveling Total Level 1 Level 2 Level 3 Not subject to leveling Total
Interest rate and foreign currency derivative assets                   
Derivatives designated as hedging instruments
 3
 
 
 3
 
 6
 
 
 6
Economic hedges
 10
 
 
 10
 
 10
 
 
 10
Effect of netting and allocation of collateral(2) (5) 
 
 (7) (2) (5) 
 
 (7)
Interest rate and foreign currency derivative assets subtotal(2) 8
 



6

(2) 11
 



9
Other investments
 
 37
 
 37
 
 
 37
 
 37
Total assets6,385
 3,729
 1,387

3,534

15,035

6,980
 3,793
 1,409

3,534

15,716
Liabilities
 
 
   
 
 
 
   

Commodity derivative liabilities
 
 
   
 
 
 
   
Economic hedges(712) (2,226) (845) 
 (3,783) (713) (2,226) (1,101) 
 (4,040)
Proprietary trading(2) (42) (9) 
 (53) (2) (42) (9) 
 (53)
Effect of netting and allocation of
collateral
(e)(f)
650
 2,089
 716
 
 3,455
 651
 2,089
 716
 
 3,456
Commodity derivative liabilities subtotal(64) (179) (138)


(381)
(64) (179) (394)


(637)
Interest rate and foreign currency derivative liabilities                   
Derivatives designated as hedging instruments
 (2) 
 
 (2) 
 (2) 
 
 (2)
Economic hedges(1) (8) 
 
 (9) (1) (8) 
 
 (9)
Effect of netting and allocation of collateral2
 5
 
 
 7
 2
 5
 
 
 7
Interest rate and foreign currency derivative liabilities subtotal1
 (5) 



(4)
1
 (5) 



(4)
Deferred compensation obligation
 (38) 
 
 (38) 
 (145) 
 
 (145)
Total liabilities(63) (222) (138)


(423)
(63) (329) (394)


(786)
Total net assets$6,322
 $3,507
 $1,249

$3,534

$14,612

$6,917
 $3,464
 $1,015

$3,534

$14,930

 Generation Exelon
As of December 31, 2016Level 1 Level 2 Level 3 Not subject to leveling Total Level 1 Level 2 Level 3 Not subject to leveling Total
Assets                   
Cash equivalents(a)
$39
 $
 $
 $
 $39
 $373
 $
 $
 $
 $373
NDT fund investments        
         

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 Generation Exelon
As of December 31, 2016Level 1 Level 2 Level 3 Not subject to leveling Total Level 1 Level 2 Level 3 Not subject to leveling Total
Cash equivalents(b)
110
 19
 
 
 129
 110
 19
 
 
 129
Equities3,551
 452
 
 2,011
 6,014
 3,551
 452
 
 2,011
 6,014
Fixed income




   
 




   
Corporate debt
 1,554
 250
 
 1,804
 
 1,554
 250
 
 1,804
U.S. Treasury and agencies1,291
 29
 
 
 1,320
 1,291
 29
 
 
 1,320
Foreign governments
 37
 
 
 37
 
 37
 
 
 37
State and municipal debt
 264
 
 
 264
 
 264
 
 
 264
Other(c)

 59
 
 493
 552
 
 59
 
 493
 552
Fixed income subtotal1,291

1,943

250

493

3,977

1,291

1,943

250

493

3,977
Middle market lending
 
 427
 71
 498
 
 
 427
 71
 498
Private equity
 
 
 148
 148
 
 
 
 148
 148
Real estate
 
 
 326
 326
 
 
 
 326
 326
NDT fund investments subtotal(d)
4,952

2,414

677

3,049

11,092

4,952

2,414

677

3,049

11,092
Pledged assets for Zion Station decommissioning




   
 




   
Cash equivalents11
 
 
 
 11
 11
 
 
 
 11
Equities
 2
 
 
 2
 
 2
 
 
 2
Fixed Income - U.S. Treasury and agencies16
 1
 
 
 17
 16
 1
 
 
 17
Middle market lending



19
 64
 83
 



19
 64
 83
Pledged assets for Zion Station decommissioning subtotal27

3

19

64

113

27

3

19

64

113
Rabbi trust investments




   
 




   
Cash equivalents2
 
 
 
 2
 74
 
 
 
 74
Mutual funds19
 
 
 
 19
 50
 
 
 
 50
Fixed income
 
 
 
 
 
 16
 
 
 16
Life insurance contracts
 18
 
 
 18
 
 64
 20
 
 84
Rabbi trust investments subtotal21

18





39

124

80

20



224
Commodity derivative assets                   
Economic hedges1,356
 2,505
 1,229
 
 5,090
 1,358
 2,505
 1,229
 
 5,092
Proprietary trading3
 50
 23
 
 76
 3
 50
 23
 
 76
Effect of netting and allocation of
collateral
(e)(f)
(1,162) (2,142) (481) 
 (3,785) (1,164) (2,142) (481) 
 (3,787)
Commodity derivative assets subtotal197

413

771



1,381

197

413

771



1,381

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 Generation Exelon
As of December 31, 2016Level 1 Level 2 Level 3 Not subject to leveling Total Level 1 Level 2 Level 3 Not subject to leveling Total
Interest rate and foreign currency derivative assets                   
Derivatives designated as hedging instruments
 
 
 
 
 
 16
 
 
 16
Economic hedges
 28
 
 
 28
 
 28
 
 
 28
Proprietary trading3
 2
 
 
 5
 3
 2
 
 
 5
Effect of netting and allocation of collateral(2) (19) 
 
 (21) (2) (19) 
 
 (21)
Interest rate and foreign currency derivative assets subtotal1

11





12

1

27





28
Other investments



42
 
 42
 
 
 42
 
 42
Total assets5,237

2,859

1,509

3,113

12,718

5,674

2,937

1,529

3,113

13,253
Liabilities




   
 




   
Commodity derivative liabilities




   
 




   
Economic hedges(1,267) (2,378) (794) 
 (4,439) (1,267) (2,378) (1,052) 
 (4,697)
Proprietary trading(3) (50) (26) 
 (79) (3) (50) (26) 
 (79)
Effect of netting and allocation of
collateral
(e)(f)
1,233
 2,339
 542
 
 4,114
 1,233
 2,339
 542
 
 4,114
Commodity derivative liabilities subtotal(37)
(89)
(278)


(404)
(37)
(89)
(536)


(662)
Interest rate and foreign currency derivative liabilities                   
Derivatives designated as hedging instruments
 (10) 
 
 (10) 
 (10) 
 
 (10)
Economic hedges
 (21) 
 
 (21) 
 (21) 
 
 (21)
Proprietary trading(4) 
 
 
 (4) (4) 
 
 
 (4)
Effect of netting and allocation of collateral4
 19
 
 
 23
 4
 19
 
 
 23
Interest rate and foreign currency derivative liabilities subtotal

(12)




(12)


(12)




(12)
Deferred compensation obligation

(34)

 
 (34) 

(136)

 
 (136)
Total liabilities(37)
(135)
(278)


(450)
(37)
(237)
(536)


(810)
Total net assets$5,200

$2,724

$1,231

$3,113

$12,268

$5,637

$2,700

$993

$3,113

$12,443
__________
(a)Generation excludes cash of $259 million and $252 million at December 31, 2017 and 2016 and restricted cash of $127 million and $157 million at December 31, 2017 and 2016.  Exelon excludes cash of $389 million and $360 million at December 31, 2017 and 2016 and restricted cash of $145 million and $180 million at December 31, 2017 and 2016 and includes long-term restricted cash of $85 million and $25 million at December 31, 2017 and 2016, which is reported in Other deferred debits on the Consolidated Balance Sheets.
(b)Includes $77 million and $29 million of cash received from outstanding repurchase agreements at December 31, 2017 and 2016, respectively, and is offset by an obligation to repay upon settlement of the agreement as discussed in (d) below.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

(c)Includes derivative instruments of less than $1 million and $(2) million, which have a total notional amount of $811 million and $933 million at December 31, 2017 and 2016, respectively. The notional principal amounts for these instruments provide one measure of the transaction volume outstanding as of the fiscal years ended and do not represent the amount of the company's exposure to credit or market loss.
(d)Excludes net liabilities of $82 million and $31 million at December 31, 2017 and 2016, respectively. These items consist of receivables related to pending securities sales, interest and dividend receivables, repurchase agreement obligations, and payables related to pending securities purchases. The repurchase agreements are generally short-term in nature with durations generally of 30 days or less.
(e)Collateral posted/(received) from counterparties totaled $65 million, $320 million and $81 million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of December 31, 2017. Collateral posted/(received) from counterparties totaled $71 million, $197 million and $61 million allocated to Level 1, Level 2 and Level 3 mark-to-market derivatives, respectively, as of December 31, 2016.
(f)Of the collateral posted/(received), $(117) million and $(158) million represents variation margin on the exchanges as of December 31, 2017 and 2016, respectively.
ComEd, PECO and BGE
The following tables present assets and liabilities measured and recorded at fair value on ComEd's, PECO's and BGE's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of December 31, 2017 and 2016:
 ComEd PECO BGE
As of December 31, 2017Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total
Assets                       
Cash equivalents(a)
$98

$

$
 $98
 $228

$

$
 $228
 $

$

$
 $
Rabbi trust investments                       
Mutual funds




 
 7




 7
 6




 6
Life insurance contracts
 
 
 
 
 10
 
 10
 
 
 
 
Rabbi trust investments subtotal
 
 
 
 7
 10
 
 17
 6
 
 
 6
Total assets98





98

235

10



245

6





6
Liabilities




 
 




 
 




 
Deferred compensation obligation

(8)

 (8) 

(11)

 (11) 

(5)

 (5)
Mark-to-market derivative liabilities(b)




(256) (256) 




 
 




 
Total liabilities

(8)
(256)
(264)


(11)


(11)


(5)


(5)
Total net assets (liabilities)$98

$(8)
$(256)
$(166)
$235

$(1)
$

$234

$6

$(5)
$

$1


Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 ComEd PECO BGE
As of December 31, 2016Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total
Assets                       
Cash equivalents(a)
$20

$

$
 $20
 $45

$

$
 $45
 $36

$

$
 $36
Rabbi trust investments                       
Mutual funds




 
 7




 7
 4




 4
Life insurance contracts
 
 
 
 
 10
 
 10
 
 
 
 
Rabbi trust investments subtotal
 
 
 
 7
 10
 
 17
 4
 
 
 4
Total assets20





20

52

10



62

40





40
Liabilities




 
 




 
 




 
Deferred compensation obligation

(8)

 (8) 

(11)

 (11) 

(4)

 (4)
Mark-to-market derivative liabilities(b)




(258) (258) 




 
 




 
Total liabilities

(8)
(258)
(266)


(11)


(11)


(4)


(4)
Total net assets (liabilities)$20

$(8)
$(258)
$(246)
$52

$(1)
$

$51

$40

$(4)
$

$36
__________
(a)ComEd excludes cash of $45 million and $36 million at December 31, 2017 and 2016 and restricted cash of $2 million at December 31, 2016 and includes long-term restricted cash of $62 million at December 31, 2017, which is reported in Other deferred debits on the Consolidated Balance Sheets.  PECO excludes cash of $47 million and $22 million at December 31, 2017 and 2016.  BGE excludes cash of $17 million and $13 million at December 31, 2017 and 2016 and restricted cash of $1 million at December 31, 2017 and includes long-term restricted cash of $2 million at December 31, 2016, which is reported in Other deferred debits on the Consolidated Balance Sheets.
(b)The Level 3 balance consists of the current and noncurrent liability of $21 million and $235 million, respectively, at December 31, 2017, and $19 million and $239 million, respectively, at December 31, 2016, related to floating-to-fixed energy swap contracts with unaffiliated suppliers.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PHI, Pepco, DPL and ACE
The following tables present assets and liabilities measured and recorded at fair value on PHI's, Pepco's, DPL's and ACE's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of December 31, 2017 and 2016:
 Successor
 As of December 31, 2017  As of December 31, 2016
PHILevel 1 Level 2 Level 3 Total  Level 1 Level 2 Level 3 Total
Assets                
Cash equivalents(a)
$83
 $
 $
 $83
  $217
 $
 $
 $217
Mark-to-market derivative assets(b)

 
 
 
  2
 
 
 2
Effect of netting and allocation of collateral
 
 
 
  (2) 
 
 (2)
Mark-to-market derivative assets subtotal
 
 
 
  
 
 
 
Rabbi trust investments      
        

Cash equivalents72
 
 
 72
  73
 
 
 73
Fixed income
 12
 
 12
  
 16
 
 16
Life insurance contracts
 23
 22
 45
  
 22
 20
 42
Rabbi trust investments subtotal72

35

22

129

 73

38

20

131
Total assets155

35

22

212


290

38

20

348
Liabilities               

Deferred compensation obligation
 (25) 
 (25)  
 (28) 
 (28)
Mark-to-market derivative liabilities(b)
(1) 
 
 (1)  
 
 
 
Effect of netting and allocation of collateral1
 
 
 1
  
 
 
 
Mark-to-market derivative liabilities subtotal















Total liabilities

(25)


(25)



(28)


(28)
Total net assets$155

$10

$22

$187


$290

$10

$20

$320

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 Pepco DPL ACE
As of December 31, 2017Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total
Assets                       
Cash equivalents(a)
$36
 $
 $
 $36
 $
 $
 $
 $
 $29
 $
 $
 $29
Rabbi trust investments      

       

       

Cash equivalents44
 
 
 44
 
 
 
 
 
 
 
 
Fixed income
 12
 
 12
 
 
 
 
 
 
 
 
Life insurance contracts
 23
 22
 45
 
 
 
 
 
 
 
 
Rabbi trust investments subtotal44

35

22

101
















Total assets80

35

22

137









29





29
Liabilities                       
Deferred compensation obligation
 (4) 
 (4) 
 (1) 
 (1) 
 
 
 
Mark-to-market derivative liabilities (b)

 
 
 
 (1) 
 
 (1) 
 
 
 
Effect of netting and allocation of collateral
 
 
 
 1
 
 
 1
 
 
 
 
Mark-to-market derivative liabilities subtotal






















Total liabilities

(4)


(4)


(1)


(1)







Total net assets (liabilities)$80

$31

$22

$133

$

$(1)
$

$(1)
$29

$

$

$29

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 Pepco DPL ACE
As of December 31, 2016Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total
Assets                       
Cash equivalents(a)
$33
 $
 $
 $33
 $42
 $
 $
 $42
 $130
 $
 $
 $130
Mark-to-market derivative assets(b)

 
 
 
 2
 
 
 2
 
 
 
 
Effect of netting and allocation of collateral
 
 
 
 (2) 
 
 (2) 
 
 
 
Mark-to-market derivative assets subtotal
 
 
 
 
 
 
 
 
 
 
 
Rabbi trust investments      

       

       

Cash equivalents43
 
 
 43
 
 
 
 
 
 
 
 
Fixed income
 16
 
 16
 
 
 
 
 
 
 
 
Life insurance contracts
 22
 19
 41
 
 
 
 
 
 
 
 
Rabbi trust investments subtotal43

38

19

100
















Total assets76

38

19

133

42





42

130





130
Liabilities                       
Deferred compensation obligation
 (5) 
 (5) 
 (1) 
 (1) 
 
 
 
Total liabilities

(5)


(5)


(1)


(1)







Total net assets (liabilities)$76

$33

$19

$128

$42

$(1)
$

$41

$130

$

$

$130
_______
(a)PHI excludes cash of $12 million and $19 million at December 31, 2017 and 2016 and includes long term restricted cash of $23 million at both December 31, 2017 and 2016 which is reported in Other deferred debits on the Consolidated Balance Sheets.  Pepco excludes cash of $4 million and $9 million at December 31, 2017 and 2016. DPL excludes cash of $2 million and $4 million at December 31, 2017 and 2016. ACE excludes cash of $2 million and $3 million at December 31, 2017 and 2016 and includes long-term restricted cash of $23 million at both December 31, 2017 and 2016 which is reported in Other deferred debits on the Consolidated Balance Sheets.
(b)Represents natural gas futures purchased by DPL as part of a natural gas hedging program approved by the DPSC.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following tables present the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis during the years ended December 31, 2017 and 2016:
             Successor    
 Generation ComEd PHI   Exelon
For the year ended December 31, 2017NDT Fund Investments Pledged Assets
for Zion Station
Decommissioning
 Mark-to-Market
Derivatives
 Other
Investments
 Total Generation 
Mark-to-Market
Derivatives
 Life Insurance Contracts Eliminated in Consolidation Total
Balance as of January 1, 2017$677

$19
 $493

$42
 $1,231
 $(258) $20
 $
 $993
Total realized / unrealized gains (losses)


 

  

       
Included in net income3


 (90)
(a) 
3
 (84) 
 3
 
 (81)
Included in noncurrent payables to affiliates6


 


 6
 
 
 (6) 
Included in payable for Zion Station decommissioning

(8) 


 (8) 
 
 
 (8)
Included in regulatory assets/liabilities


 
 
 
 2
(b) 

 6
 8
Change in collateral


 20


 20
 
 
 
 20
Purchases, sales, issuances and settlements 
   
  
       
Purchases64

1
 178
 5
 248
 
 
 
 248
Sales


 (16)

 (16) 
 
 
 (16)
Issuances
 
 
 
 
 
 (1) 
 (1)
Settlements(102)

 (8)
(c) 

 (110) 
 
 
 (110)
Transfers into Level 3


 (6)

 (6) 
 
 
 (6)
Transfers out of Level 3


 (50)
(11) (61) 
 
 
 (61)
Other miscellaneous
 
 31
(d) 
(2) 29
 
 
 
 29
Balance as of December 31, 2017$648

$12
 $552

$37

$1,249
 $(256)
$22

$
 $1,015
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities as of December 31, 2017$1
 $
 $254
 $3
 $258
 $
 $3
 $
 $261

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

             Successor    
 Generation ComEd 
PHI(f)
   Exelon
For the year ended December 31, 2016NDT Fund Investments 
Pledged Assets
for Zion Station
Decommissioning
 
Mark-to-Market
Derivatives
 
Other
Investments
 Total Generation 
Mark-to-Market
Derivatives
 Life Insurance Contracts Eliminated in Consolidation Total
Balance as of January 1, 2016$670

$22
 $1,051

$33
 $1,776
 $(247) $
 $
 $1,529
Included due to merger
 
 
 
 
 
 20
 
 20
Total realized / unrealized gains (losses)


 


 

       

Included in net income7


 (568)
(a) 
1
 (560) 
 3
 
 (557)
Included in noncurrent payables to affiliates16


 
 
 16
 
 
 (16) 
Included in regulatory assets/liabilities
 
 
 
 
 (11)
(b) 

 16
 5
Change in collateral


 (141) 
 (141) 
 
 
 (141)
Purchases, sales, issuances and settlements


 
 
 

       

Purchases143

2
 342
(e) 
7
 494
 
 
 
 494
Sales(1)
(5) (9)

 (15) 
 
 
 (15)
Issuances
 
 
 
 
 
 (3) 
 (3)
Settlements(144)

 


 (144) 
 
 
 (144)
Transfers into Level 3


 1

1
 2
 
 
 
 2
Transfers out of Level 3(14)

 (183)

 (197) 
 
 
 (197)
Balance as of December 31, 2016$677

$19
 $493

$42

$1,231
 $(258) $20
 $
 $993
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities held as of December 31, 2016$5

$
 $109

$
 $114
 $
 $2
 $
 $116
__________
(a)Includes a reduction for the reclassification of $352 million and $677 million of realized gains due to the settlement of derivative contracts for the years ended December 31, 2017 and 2016, respectively.
(b)Includes $18 million of decreases in fair value and an increase for realized losses due to settlements of $20 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the year ended December 31, 2017. Includes $29 million of decreases in fair value and an increase for realized losses due to settlements of $18 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the year ended December 31, 2016.
(c)Exelon includes the settlement value for any open contracts that were net settled prior to their scheduled maturity within this line item.
(d)As a result of the bankruptcy filing for EGTP on November 7, 2017, the net mark-to-market commodity contracts were deconsolidated from Exelon's and Generation's consolidated financial statements.
(e)Includes $168 million of fair value from contracts acquired as a result of portfolio acquisitions.
(f)Successor period represents activity from March 24, 2016 to December 31, 2016. See tables below for PHI's predecessor periods, as well as activity for Pepco for the years ended December 31, 2017 and 2016.


Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 Predecessor
 
January 1, 2016 to
March 23, 2016
PHIPreferred Stock Life Insurance Contracts
Beginning Balance$18
 $19
Total realized / unrealized (losses) gains   
Included in net income(18) 1
Ending Balance$

$20
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities for the period$
 $1
 Life Insurance Contracts
 For the year ended December 31,
Pepco2017 2016
Balance as of January 1$20
 $19
Total realized / unrealized gains (losses)   
Included in net income3
 3
Purchases, sales, issuances and settlements   
Issuances(1) (3)
Balance as of December 31$22
 $19
The amount of total gains (losses) included in income attributed to the change in unrealized gains (losses) related to assets and liabilities for the period$3
 $3
The following tables present the income statement classification of the total realized and unrealized gains (losses) included in income for Level 3 assets and liabilities measured at fair value on a recurring basis during the years ended December 31, 2017 and 2016:
       Successor        
 Generation PHI Exelon
 
Operating
Revenues
 
Purchased
Power and
Fuel
 
Other, net(a)
 Operating and
Maintenance
 
Operating
Revenues
 
Purchased
Power and
Fuel
 Operating and
Maintenance
 
Other, net(a)
Total gains (losses) included in net income for the year ended December 31, 2017$28
 $(126) $6
 $3
 $28
 $(126) $3
 $6
Change in the unrealized gains (losses) relating to assets and liabilities held for the year ended December 31, 2017290
 (36) 4
 3
 290
 (36) 3
 4
       Successor      
 Generation 
PHI(b)
 Exelon
 
Operating
Revenues
 
Purchased
Power and
Fuel
 
Other, net(a)
 
Other, net(a)
 
Operating
Revenues
 
Purchased
Power and
Fuel
 
Other, net(a)
Total gains (losses) included in net income for the year ended December 31, 2016$(477) $(91) $7
 $3
 $(477) $(91) $10
Change in the unrealized gains (losses) relating to assets and liabilities held for the year ended December 31, 2016154
 (45) 5
 2
 154
 (45) 7

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 Predecessor      
 PHI Pepco
 
January 1, 2016 to
March 23, 2016
 December 31, 2017 December 31, 2017 December 31, 2016
 
Other, net(a)
 Operating and Maintenance 
Other, net(a)
Total (losses) gains included in net income$(17) $3
 $
 $3
Change in the unrealized gains (losses) relating to assets and liabilities held1
 3
 
 3
__________
(a)Other, net activity consists of realized and unrealized gains (losses) included in income for the NDT funds held by Generation, accrued interest on a convertible promissory note at Generation and the life insurance contracts held by PHI and Pepco.
(b)Successor period represents activity from March 24, 2016 to December 31, 2016. See the subsequent table for PHI's predecessor periods, as well as activity for Pepco for the year ended December 31, 2017 and 2016.
Valuation Techniques Used to DetermineNote 17 — Fair Value
The following describes the valuation techniques used to measure the fair value of the assetsFinancial Assets and liabilities shown in the tables above.
Cash Equivalents (Exelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE).The Registrants’ cash equivalents include investments with original maturities of three months or less when purchased. The cash equivalents shown in the fair value tables are comprised of investments in mutual and money market funds. The fair values of the shares of these funds are based on observable market prices and, therefore, have been categorized in Level 1 in the fair value hierarchy.
Preferred Stock Derivative (PHI). In connection with entering into the PHI Merger Agreement, PHI entered into a Subscription Agreement with Exelon dated April 29, 2014, pursuant to which PHI issued to Exelon shares of preferred stock. The preferred stock contained embedded features requiring separate accounting consideration to reflect the potential value to PHI that any issued and outstanding preferred stock could be called and redeemed at a nominal par value upon a termination of the merger agreement under certain circumstances due to the failure to obtain required regulatory approvals. The embedded call and redemption features on the shares of the preferred stock in the event of such a termination were separately accounted for as derivatives. These preferred stock derivatives were valued quarterly using quantitative and qualitative factors, including management’s assessment of the likelihood of a Regulatory Termination and therefore, were categorized in Level 3 in the fair value hierarchy. As a result of the PHI Merger, the PHI preferred stock derivative was reduced to zero as of March 23, 2016. The write-off was charged to Other, net on the PHI Consolidated Statement of Operations and Comprehensive Income.
Nuclear Decommissioning Trust Fund Investments and Pledged Assets for Zion Station Decommissioning (Exelon and Generation). The trust fund investments have been established to satisfy Generation’s and CENG's nuclear decommissioning obligations as required by the NRC. The NDT funds hold debt and equity securities directly and indirectly through commingled funds and mutual funds, which are included in Equities and Fixed Income. Generation’s and CENG's NDT fund investments policies outline investment guidelines for the trusts and limit the trust funds’ exposures to investments in highly illiquid markets and other alternative investments. Investments with maturities of three months or less when purchased, including certain short-term fixed income securities are considered cash equivalents and included in the recurring fair value measurements hierarchy as Level 1 or Level 2.
With respect to individually held equity securities, the trustees obtain prices from pricing services, whose prices are generally obtained from direct feeds from market exchanges, which Generation is able to independently corroborate. The fair values of equity securities held directly by the trust funds which are based on quoted prices in active markets are categorized in Level 1. Certain equity securities have been categorized as Level 2 because they are based on evaluated prices that reflect observable market

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)Liabilities

information, such as actual trade information or similar securities. Equity securities held individually are primarily traded on the New York Stock Exchange and NASDAQ-Global Select Market, which contain only actively traded securities due to the volume trading requirements imposed by these exchanges.
For fixed income securities, multiple prices from pricing services are obtained whenever possible, which enables cross-provider validations in addition to checks for unusual daily movements. A primary price source is identified based on asset type, class or issue for each security. With respect to individually held fixed income securities, the trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the portfolio managers challenge an assigned price and the trustees determine that another price source is considered to be preferable. Generation has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Generation selectively corroborates the fair values of securities by comparison to other market-based price sources. U.S. Treasury securities are categorized as Level 1 because they trade in a highly liquid and transparent market. The fair values of fixed income securities, excluding U.S. Treasury securities, are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities, adjusted for observable differences and are categorized in Level 2. The fair values of private placement fixed income securities, which are included in Corporate debt, are determined using a third-party valuation that contains significant unobservable inputs and are categorized in Level 3.
Equity and fixed income commingled funds and mutual funds are maintained by investment companies and hold certain investments in accordance with a stated set of fund objectives such as holding short-term fixed income securities or tracking the performance of certain equity indices by purchasing equity securities to replicate the capitalization and characteristics of the indices. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For commingled funds and mutual funds, which are not publicly quoted, the funds are valued using NAV as a practical expedient for fair value, which is primarily derived from the quoted prices in active markets on the underlying securities, and are not classified within the fair value hierarchy. These investments typically can be redeemed monthly with 30 or less days of notice and without further restrictions.
Derivative instruments consisting primarily of futures and interest rate swaps to manage risk are recorded at fair value. Over the counter derivatives are valued daily based on quoted prices in active markets and trade in open markets, and have been categorized as Level 1. Derivative instruments other than over the counter derivatives are valued based on external price data of comparable securities and have been categorized as Level 2.
Middle market lending are investments in loans or managed funds which lend to private companies. Generation elected the fair value option for its investments in certain limited partnerships that invest in middle market lending managed funds. The fair value of these loans is determined using a combination of valuation models including cost models, market models, and income models. Investments in loans are categorized as Level 3 because the fair value of these securities is based largely on inputs that are unobservable and utilize complex valuation models. Managed funds are valued using NAV or its equivalent as a practical expedient, and therefore, are not classified within the fair value hierarchy. Investments in middle market lending typically cannot be redeemed until maturity of the term loan.
Private equity and real estate investments include those in limited partnerships that invest in operating companies and real estate holding companies that are not publicly traded on a stock exchange, such as, leveraged buyouts, growth capital, venture capital, distressed investments, investments in natural resources, and direct investments in pools of real estate properties. The fair value of private equity and real estate investments is determined using NAV or its equivalent as a practical expedient, and therefore, are not classified within the fair value hierarchy. These investments typically cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Private equity and real estate valuations are reported by the fund manager and are based on the valuation of the underlying investments, which include inputs such as cost, operating results, discounted future cash flows, market based comparable data, and independent appraisals from sources with professional qualifications. These valuation inputs are unobservable.
As of December 31, 2017, Generation has outstanding commitments to invest in fixed income, middle market lending, private equity and real estate investments of approximately $65 million, $363 million, $220 million and $118 million, respectively. These commitments will be funded by Generation’s existing nuclear decommissioning trust funds.
Concentrations of Credit Risk. Generation evaluated its NDT portfolios for the existence of significant concentrations of credit risk as of December 31, 2017. Types of concentrations that were evaluated include, but are not limited to, investment concentrations in a single entity, type of industry, foreign country, and individual fund. As of December 31, 2017, there were no significant concentrations (generally defined as greater than 10 percent) of risk in Generation's NDT assets.
See Note 15 — Asset Retirement Obligations for further discussion on the NDT fund investments.
Rabbi Trust Investments (Exelon, Generation, PECO, BGE, PHI, Pepco, DPL and ACE). The Rabbi trusts were established to hold assets related to deferred compensation plans existing for certain active and retired members of Exelon’s executive management and directors. The Rabbi trusts' assets are included in investments in the Registrants’ Consolidated Balance Sheets and consist primarily of money market funds, mutual funds, fixed income securities and life insurance policies. The mutual funds are maintained by investment companies and hold certain investments in accordance with a stated set of fund objectives, which are consistent with Exelon’s overall investment strategy. Money market funds and mutual funds are publicly quoted and have been categorized as Level 1 given the clear observability of the prices. The fair values of fixed income securities are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities, adjusted for observable differences and are categorized in Level 2. The life insurance policies are valued using the cash surrender value of the policies, net of loans against those policies, which is provided by a third-party. Certain life insurance policies, which consist primarily of mutual funds that are priced based on observable market data, have been categorized as Level 2 because the life insurance policies can be liquidated at the reporting date for the value of the underlying assets. Life insurance policies that are valued using unobservable inputs have been categorized as Level 3.
Mark-to-Market Derivatives (Exelon, Generation, ComEd, PHI and DPL).Derivative contracts are traded in both exchange-based and non-exchange-based markets. Exchange-based derivatives that are valued using unadjusted quoted prices in active markets are categorized in Level 1 in the fair value hierarchy. Certain derivatives’ pricing is verified using indicative price quotations available through brokers or over-the-counter, on-line exchanges and are categorized in Level 2. These price quotations reflect the average of the bid-ask, mid-point prices and are obtained from sources that the Registrants believe provide the most liquid market for the commodity. The price quotations are reviewed and corroborated to ensure the prices are observable and representative of an orderly transaction between market participants. This includes consideration of actual transaction volumes, market delivery points, bid-ask spreads and contract duration. The remainder of derivative contracts are valued using the Black model, an industry standard option valuation model. The Black model takes into account inputs such as contract terms, including maturity, and market parameters, including assumptions of the future prices of energy, interest rates, volatility, credit worthiness and credit spread. For derivatives that trade in liquid markets, such as generic forwards, swaps and options, model inputs are generally observable. Such instruments are categorized in Level 2. The Registrants’ derivatives are predominantly at liquid trading points. For derivatives that trade in less liquid markets with limited pricing information model inputs generally would include both observable and unobservable inputs. These valuations may include an

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

estimated basis adjustment from an illiquid trading point to a liquid trading point for which active price quotations are available. Such instruments are categorized in Level 3.
Exelon may utilize fixed-to-floating interest rate swaps, which are typically designated as fair value hedges, as a means to achieve its targeted level of variable-rate debt as a percent of total debt. In addition, the Registrants may utilize interest rate derivatives to lock in interest rate levels in anticipation of future financings. These interest rate derivatives are typically designated as cash flow hedges. Exelon determines the current fair value by calculating the net present value of expected payments and receipts under the swap agreement, based on and discounted by the market's expectation of future interest rates. Additional inputs to the net present value calculation may include the contract terms, counterparty credit risk and other market parameters. As these inputs are based on observable data and valuations of similar instruments, the interest rate swaps are categorized in Level 2 in the fair value hierarchy. See Note 12 — Derivative Financial Instruments for further discussion on mark-to-market derivatives.
Deferred Compensation Obligations (Exelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE).  The Registrants’ deferred compensation plans allow participants to defer certain cash compensation into a notional investment account. The Registrants include such plans in other current and noncurrent liabilities in their Consolidated Balance Sheets. The value of the Registrants’ deferred compensation obligations is based on the market value of the participants’ notional investment accounts. The underlying notional investments are comprised primarily of equities, mutual funds, commingled funds and fixed income securities which are based on directly and indirectly observable market prices. Since the deferred compensation obligations themselves are not exchanged in an active market, they are categorized as Level 2 in the fair value hierarchy.
The value of certain employment agreement obligations (which are included with the Deferred Compensation Obligation in the tables above) are based on a known and certain stream of payments to be made over time and are categorized as Level 2 within the fair value hierarchy.
Additional Information Regarding Level 3 Fair Value Measurements (Exelon, Generation, ComEd, PHI, Pepco, DPL and ACE)
Nuclear Decommissioning Trust Fund Investments and Pledged Assets for Zion StationDecommissioning (Exelon and Generation).For middle market lending and certain corporate debt securities investments, the fair value is determined using a combination of valuation models including cost models, market models and income models. The valuation estimates are based on discounting the forecasted cash flows, market-based comparable data, credit and liquidity factors, as well as other factors that may impact value. Significant judgment is required in the application of discounts or premiums applied for factors such as size, marketability, credit risk and relative performance.
Because Generation relies on third-party fund managers to develop the quantitative unobservable inputs without adjustment for the valuations of its Level 3 investments, quantitative information about significant unobservable inputs used in valuing these investments is not reasonably available to Generation. This includes information regarding the sensitivity of the fair values to changes in the unobservable inputs. Generation gains an understanding of the fund managers’ inputs and assumptions used in preparing the valuations. Generation performed procedures to assess the reasonableness of the valuations.
Rabbi Trust Investments - Life insurance contracts (Exelon, PHI, Pepco, DPL and ACE). Forlife insurance policies categorized as Level 3, the fair value is determined based on the cash surrender value of the policy, which contains unobservable inputs and assumptions. Because Exelon relies on its third-party insurance provider to develop the inputs without adjustment for the valuations of its Level 3 investments, quantitative information about significant unobservable inputs used in valuing these investments is not reasonably available to Exelon. Exelon gains an understanding of the types of inputs

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

and assumptions used in preparing the valuations and performs procedures to assess the reasonableness of the valuations.
Mark-to-Market Derivatives (Exelon, Generation and ComEd).For valuations that include both observable and unobservable inputs, if the unobservable input is determined to be significant to the overall inputs, the entire valuation is categorized in Level 3. This includes derivatives valued using indicative price quotations whose contract tenure extends into unobservable periods. In instances where observable data is unavailable, consideration is given to the assumptions that market participants would use in valuing the asset or liability. This includes assumptions about market risks such as liquidity, volatility and contract duration. Such instruments are categorized in Level 3 as the model inputs generally are not observable. Exelon’s RMC approves risk management policies and objectives for risk assessment, control and valuation, counterparty credit approval, and the monitoring and reporting of risk exposures. The RMC is chaired by the chief executive officer and includes the chief risk officer, chief strategy officer, chief executive officer of Exelon Utilities, chief commercial officer, chief financial officer and chief executive officer of Constellation. The RMC reports to the Finance and Risk Committee of the Exelon Board of Directors on the scope of the risk management activities. Forward price curves for the power market utilized by the front office to manage the portfolio, are reviewed and verified by the middle office, and used for financial reporting by the back office. The Registrants consider credit and nonperformance risk in the valuation of derivative contracts categorized in Level 2 and 3, including both historical and current market data in its assessment of credit and nonperformance risk by counterparty. Due to master netting agreements and collateral posting requirements, the impacts of credit and nonperformance risk were not material to the financial statements.
Disclosed below is detail surrounding the Registrants’ significant Level 3 valuations. The calculated fair value includes marketability discounts for margining provisions and other attributes. Generation’s Level 3 balance generally consists of forward sales and purchases of power and natural gas and certain transmission congestion contracts. Generation utilizes various inputs and factors including market data and assumptions that market participants would use in pricing assets or liabilities as well as assumptions about the risks inherent in the inputs to the valuation technique. The inputs and factors include forward commodity prices, commodity price volatility, contractual volumes, delivery location, interest rates, credit quality of counterparties and credit enhancements.
For commodity derivatives, the primary input to the valuation models is the forward commodity price curve for each instrument. Forward commodity price curves are derived by risk management for liquid locations and by the traders and portfolio managers for illiquid locations. All locations are reviewed and verified by risk management considering published exchange transaction prices, executed bilateral transactions, broker quotes, and other observable or public data sources. The relevant forward commodity curve used to value each of the derivatives depends on a number of factors, including commodity type, delivery location, and delivery period. Price volatility varies by commodity and location. When appropriate, Generation discounts future cash flows using risk free interest rates with adjustments to reflect the credit quality of each counterparty for assets and Generation’s own credit quality for liabilities. The level of observability of a forward commodity price varies generally due to the delivery location and delivery period. Certain delivery locations including PJM West Hub (for power) and Henry Hub (for natural gas) are more liquid and prices are observable for up to three years in the future. The observability period of volatility is generally shorter than the underlying power curve used in option valuations. The forward curve for a less liquid location is estimated by using the forward curve from the liquid location and applying a spread to represent the cost to transport the commodity to the delivery location. This spread does not typically represent a majority of the instrument’s market price. As a result, the change in fair value is closely tied to liquid market movements and not a change in the applied spread. The change in fair value associated with a change in the spread is generally immaterial. An average spread calculated across all Level 3 power and gas delivery locations is approximately $2.99 and $0.42 for power and natural gas, respectively. Many of the commodity derivatives are short term in nature and thus a majority of the

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

fair value may be based on observable inputs even though the contract as a whole must be classified as Level 3.
On December 17, 2010, ComEd entered into several 20-year floating to fixed energy swap contracts with unaffiliated suppliers for the procurement of long-term renewable energy and associated RECs. See Note 12 — Derivative Financial Instruments for more information. The fair value of these swaps has been designated as a Level 3 valuation due to the long tenure of the positions and internal modeling assumptions. The modeling assumptions include using natural gas heat rates to project long term forward power curves adjusted by a renewable factor that incorporates time of day and seasonality factors to reflect accurate renewable energy pricing. In addition, marketability reserves are applied to the positions based on the tenor and supplier risk.
The following tables present the significant inputs to the forward curve used to value these positions:
Type of trade Fair Value at December 31, 2017 
Valuation
Technique
 
Unobservable
Input
 Range
Mark-to-market derivatives—Economic hedges (Exelon and Generation)(a)(b)
 $445
 
Discounted
Cash Flow
 Forward power price $3-$124
      Forward gas price $1.27-$12.80
    Option Model Volatility percentage 11%-139%
           
Mark-to-market derivatives—Proprietary trading (Exelon and Generation)(a)(b)
 $26
 
Discounted
Cash Flow
 Forward power price $14-$94
      
    
Mark-to-market derivatives (Exelon and ComEd) $(256) 
Discounted
Cash Flow
 
Forward heat rate(c)
 9x-10x
      Marketability reserve 4%-8%
      Renewable factor 88%-120%
______
(a)The valuation techniques, unobservable inputs and ranges are the same for the asset and liability positions.
(b)The fair values do not include cash collateral posted on level three positions of $81 million as of December 31, 2017.
(c)Quoted forward natural gas rates are utilized to project the forward power curve for the delivery of energy at specified future dates. The natural gas curve is extrapolated beyond its observable period to the end of the contract’s delivery.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Type of trade Fair Value at December 31, 2016 
Valuation
Technique
 
Unobservable
Input
 Range
Mark-to-market derivatives—Economic hedges (Exelon and Generation)(a)(b)
 $435
 
Discounted
Cash Flow
 Forward power price $11-$130
      Forward gas price $1.72-$9.20
    Option Model Volatility percentage 8%-173%
           
Mark-to-market derivatives—
Proprietary trading (Exelon and Generation)(a)(b)
 $(3) 
Discounted
Cash Flow
 Forward power price $19-$79
           
Mark-to-market derivatives (Exelon and ComEd) $(258) 
Discounted
Cash Flow
 
Forward heat rate(c)
 8x-9x
      Marketability reserve 3%-8%
      Renewable factor 89%-121%
__________
(a)The valuation techniques, unobservable inputs and ranges are the same for the asset and liability positions.
(b)
The fair values do not include cash collateral posted on level three positions of $61 million as of December 31, 2016
(c)Quoted forward natural gas rates are utilized to project the forward power curve for the delivery of energy at specified future dates. The natural gas curve is extrapolated beyond its observable period to the end of the contract’s delivery.
The inputs listed above would have a direct impact on the fair values of the above instruments if they were adjusted. The significant unobservable inputs used in the fair value measurement of Generation’s commodity derivatives are forward commodity prices and for options is price volatility. Increases (decreases) in the forward commodity price in isolation would result in significantly higher (lower) fair values for long positions (contracts that give Generation the obligation or option to purchase a commodity), with offsetting impacts to short positions (contracts that give Generation the obligation or right to sell a commodity). Increases (decreases) in volatility would increase (decrease) the value for the holder of the option (writer of the option). Generally, a change in the estimate of forward commodity prices is unrelated to a change in the estimate of volatility of prices. An increase to the reserves listed above would decrease the fair value of the positions. An increase to the heat rate or renewable factors would increase the fair value accordingly. Generally, interrelationships exist between market prices of natural gas and power. As such, an increase in natural gas pricing would potentially have a similar impact on forward power markets.
12. Derivative Financial Instruments (All Registrants)
The Registrants use derivative instruments to manage commodity price risk, interest rate risk and foreign exchange risk related to ongoing business operations.
Commodity Price Risk (All Registrants)
To the extent the total amount of power Generation produces and purchases differs from the amount of power it has contracted to sell, Exelon and Generation are exposed to market fluctuations in the prices of electricity, fossil fuels and other commodities. Each of the Registrants employ established policies and procedures to manage their risks associated with market fluctuations in commodity prices by entering into physical and financial derivative contracts, including swaps, futures, forwards, options and short-term and long-term commitments to purchase and sell energy and commodity products. The Registrants believe these instruments, which are either determined to be non-derivative or classified as economic hedges, mitigate exposure to fluctuations in commodity prices.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Derivative authoritative guidance requires that derivative instruments be recognized as either assets or liabilities at fair value, with changes in fair value of the derivative recognized in earnings immediately. Other accounting treatments are available through special election and designation, provided they meet specific, restrictive criteria both at the time of designation and on an ongoing basis. These alternative permissible accounting treatments include normal purchases and normal sales (NPNS), cash flow hedges and fair value hedges. For Generation, all derivative economic hedges related to commodities are recorded at fair value through earnings for the consolidated company, referred to as economic hedges in the following tables. Additionally, Generation is exposed to certain market risks through its proprietary trading activities. The proprietary trading activities are a complement to Generation’s energy marketing portfolio but represent a small portion of Generation’s overall energy marketing activities.
Fair value authoritative guidance and disclosures about offsetting assets and liabilities requires the fair value of derivative instruments to be shown in the Notes to the Consolidated Financial Statements on a gross basis, even when the derivative instruments are subject to legally enforceable master netting agreements and qualify for net presentation in the Consolidated Balance Sheet. A master netting agreement is an agreement between two counterparties that may have derivative and non-derivative contracts with each other providing for the net settlement of all referencing contracts via one payment stream, which takes place as the contracts deliver, when collateral is requested or in the event of default. Generation’s use of cash collateral is generally unrestricted unless Generation is downgraded below investment grade (i.e., to BB+ or Ba1). In the table below, Generation’s energy related economic hedges and proprietary trading derivatives are shown gross. The impact of the netting of fair value balances with the same counterparty that are subject to legally enforceable master netting agreements, as well as netting of cash collateral including initial margin on exchange positions, is aggregated in the collateral and netting column. As of December 31, 2017 and 2016, $4 million and $8 million of cash collateral held, respectively, was not offset against derivative positions because such collateral was not associated with any energy-related derivatives, were associated with accrual positions, or had no positions to offset as of the balance sheet date. Excluded from the tables below are economic hedges that qualify for the NPNS scope exception and other non-derivative contracts that are accounted for under the accrual method of accounting.
ComEd’s use of cash collateral is generally unrestricted unless ComEd is downgraded below investment grade (i.e., to BB+ or Ba1).
Cash collateral held by BGE and PECO must be deposited in a non-affiliate major U.S. commercial bank or foreign bank with a U.S. branch office that meet certain qualifications.
In the table below, DPL's economic hedges are shown gross. The impact of the netting of fair value balances with the same counterparty that are subject to legally enforceable master netting agreements, as well as netting of cash collateral, including margin on exchange positions, is aggregated in the collateral and netting column.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table provides a summary of the derivative fair value balances related to commodity contracts recorded by the Registrants as of December 31, 2017:
                 Successor  
 Generation ComEd DPL PHI Exelon
Description
Economic
Hedges
 
Proprietary
Trading
 
Collateral
and
Netting(a)(e)
 
Subtotal(b)
 
Economic
Hedges(c)
 
Economic
Hedges(d)
 
Collateral
and
Netting(a)
 Subtotal Subtotal 
Total
Derivatives
Mark-to-market derivative assets (current assets)$3,061
 $56
 $(2,144) $973
 $
 $
 $
 $
 $
 $973
Mark-to-market derivative assets (noncurrent assets)1,164
 12
 (845) 331
 
 
 
 
 
 331
Total mark-to-market derivative assets4,225

68

(2,989) 1,304
 




 


 1,304
Mark-to-market derivative liabilities (current liabilities)(2,646) (43) 2,480
 (209) (21) (1) 1
 
 
 (230)
Mark-to-market derivative liabilities (noncurrent liabilities)(1,137) (10) 975
 (172) (235) 
��
 
 
 (407)
Total mark-to-market derivative liabilities(3,783)
(53)
3,455
 (381) (256)
(1)
1




 (637)
Total mark-to-market derivative net assets (liabilities)$442

$15

$466
 $923
 $(256)
$(1)
$1

$

$
 $667
__________
(a)Exelon, Generation, PHI and DPL net all available amounts allowed under the derivative authoritative guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral. In some cases, Exelon and Generation may have other offsetting exposures, subject to a master netting or similar agreement, such as trade receivables and payables, transactions that do not qualify as derivatives, letters of credit and other forms of non-cash collateral. These are not reflected in the table above.
(b)Current and noncurrent assets are shown net of collateral of $169 million and $53 million, respectively, and current and noncurrent liabilities are shown net of collateral of $167 million and $77 million, respectively. The total cash collateral posted, net of cash collateral received and offset against mark-to-market assets and liabilities was $466 million at December 31, 2017.
(c)Includes current and noncurrent liabilities relating to floating-to-fixed energy swap contracts with unaffiliated suppliers.
(d)Represents natural gas futures purchased by DPL as part of a natural gas hedging program approved by the DPSC.
(e)Of the collateral posted/(received), $(117) million represents variation margin on the exchanges.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table provides a summary of the derivative fair value balances related to commodity contracts recorded by the Registrants as of December 31, 2016:
                 Successor  
 Generation ComEd DPL PHI Exelon
Description
Economic
Hedges
 
Proprietary
Trading
 
Collateral
and
Netting(a)(e)
 
Subtotal(b)
 
Economic
Hedges(c)
 
Economic
Hedges(d)
 
Collateral
and
Netting(a)
 Subtotal Subtotal 
Total
Derivatives
Mark-to-market derivative assets (current assets)$3,623
 $55
 $(2,769) $909
 $
 $2
 $(2) $
 $
 $909
Mark-to-market derivative assets (noncurrent assets)1,467
 21
 (1,016) 472
 
 
 
 
 
 472
Total mark-to-market derivative assets5,090

76

(3,785) 1,381
 
 2

(2)




1,381
Mark-to-market derivative liabilities (current liabilities)(3,165) (54) 2,964
 (255) (19) 
 
 
 
 (274)
Mark-to-market derivative liabilities (noncurrent liabilities)(1,274) (25) 1,150
 (149) (239) 
 
 
 
 (388)
Total mark-to-market derivative liabilities(4,439)
(79)
4,114
 (404) (258) 
 





(662)
Total mark-to-market derivative net assets (liabilities)$651

$(3)
$329
 $977
 $(258) $2
 $(2)
$

$

$719
__________
(a)Exelon, Generation, PHI and DPL net all available amounts allowed under the derivative authoritative guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral. In some cases, Exelon and Generation may have other offsetting exposures, subject to a master netting or similar agreement, such as trade receivables and payables, transactions that do not qualify as derivatives, and letters of credit and other forms of non-cash collateral. These are not reflected in the table above.
(b)Current and noncurrent assets are shown net of collateral of $100 million and $72 million, respectively, and current and noncurrent liabilities are shown net of collateral of $95 million and $62 million, respectively. The total cash collateral posted, net of cash collateral received and offset against mark-to-market assets and liabilities was $329 million at December 31, 2016.
(c)Includes current and noncurrent liabilities relating to floating-to-fixed energy swap contracts with unaffiliated suppliers.
(d)Represents natural gas futures purchased by DPL as part of a natural gas hedging program approved by the DPSC.
(e)Of the collateral posted/(received), $(158) million represents variation margin on the exchanges.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Economic Hedges (Commodity Price Risk)
Within Exelon, Generation has the most exposure to commodity price risk. As such, Generation uses a variety of derivative and non-derivative instruments to manage the commodity price risk of its electric generation facilities, including power and gas sales, fuel and power purchases, natural gas transportation and pipeline capacity agreements and other energy-related products marketed and purchased. To manage these risks, Generation may enter into fixed-price derivative or non-derivative contracts to hedge the variability in future cash flows from expected sales of power and gas and purchases of power and fuel. The objectives for executing such hedges include fixing the price for a portion of anticipated future electricity sales at a level that provides an acceptable return. Generation is also exposed to differences between the locational settlement prices of certain economic hedges and the hedged generating units. This price difference is actively managed through other instruments which include derivative congestion products, whose changes in fair value are recognized in earnings each period, and auction revenue rights, which are accounted for on an accrual basis. For the years ended December 31, 2017, 2016 and 2015, Exelon and Generation recognized the following net pre-tax commodity mark-to-market gains (losses) which are also located in the "Net fair value changes related to derivatives" on the Consolidated Statements of Cash Flows.
  For the Years Ended December 31,

 2017 2016 2015
Income Statement Location Gain (Loss)
Operating revenues $(126) $(490) $196
Purchased power and fuel (43) 459
 54
Total Exelon and Generation $(169) $(31) $250
In general, increases and decreases in forward market prices have a positive and negative impact, respectively, on Generation’s owned and contracted generation positions which have not been hedged. Generation hedges commodity price risk on a ratable basis over three-year periods. As of December 31, 2017, the percentage of expected generation hedged is 85%-88%, 55%-58% and 26%-29% for 2018, 2019 and 2020, respectively.
On December 17, 2010, ComEd entered into several 20-year floating-to-fixed energy swap contracts with unaffiliated suppliers for the procurement of long-term renewable energy and associated RECs. Delivery under the contracts began in June 2012. These contracts are designed to lock in a portion of the long-term commodity price risk resulting from the renewable energy resource procurement requirements in the Illinois Settlement Legislation. ComEd has not elected hedge accounting for these derivative financial instruments. ComEd records the fair value of the swap contracts on its balance sheet. Because ComEd receives full cost recovery for energy procurement and related costs from retail customers, the change in fair value each period is recorded by ComEd as a regulatory asset or liability. See Note 3 — Regulatory Matters for additional information.
PECO has contracts to procure electric supply that were executed through the competitive procurement process outlined in its PAPUC-approved DSP Programs, which are further discussed in Note 3 — Regulatory Matters. Based on Pennsylvania legislation and the DSP Programs permitting PECO to recover its electric supply procurement costs from retail customers with no mark-up, PECO’s commodity price risk related to electric supply procurement is limited. PECO locked in fixed prices for a significant portion of its commodity price risk through full requirements contracts. PECO has certain full requirements contracts that are considered derivatives and qualify for the NPNS scope exception under current derivative authoritative guidance.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PECO’s natural gas procurement policy is designed to achieve a reasonable balance of long-term and short-term gas purchases under different pricing approaches to achieve system supply reliability at the least cost. PECO’s reliability strategy is two-fold. First, PECO must assure that there is sufficient transportation capacity to satisfy delivery requirements. Second, PECO must ensure that a firm source of supply exists to utilize the capacity resources. All of PECO’s natural gas supply and asset management agreements that are derivatives either qualify for the NPNS scope exception and have been designated as such, or have no mark-to-market balances because the derivatives are index priced. Additionally, in accordance with the 2016 PAPUC PGC settlement and to reduce the exposure of PECO and its customers to natural gas price volatility, PECO has continued its program to purchase natural gas for both winter and summer supplies using a layered approach of locking-in prices ahead of each season with long-term gas purchase agreements (those with primary terms of at least twelve months). Under the terms of the 2016 PGC settlement, PECO is required to lock in (i.e., economically hedge) the price of a minimum volume of its long-term gas commodity purchases. PECO’s gas-hedging program is designed to cover about 20% of planned natural gas purchases in support of projected firm sales. The hedging program for natural gas procurement has no direct impact on PECO’s results of operations and financial position as natural gas costs are fully recovered from customers under the PGC.
BGE has contracts to procure SOS electric supply that are executed through a competitive procurement process approved by the MDPSC. The SOS rates charged recover BGE’s wholesale power supply costs and include an administrative fee. BGE’s commodity price risk related to electric supply procurement is limited. BGE locks in fixed prices for all of its SOS requirements through full requirements contracts. Certain of BGE’s full requirements contracts, which are considered derivatives, qualify for the NPNS scope exception under current derivative authoritative guidance. Other BGE full requirements contracts are not derivatives.
BGE provides natural gas to its customers under a MBR mechanism approved by the MDPSC. Under this mechanism, BGE’s actual cost of gas is compared to a market index (a measure of the market price of gas in a given period). The difference between BGE’s actual cost and the market index is shared equally between shareholders and customers. BGE must also secure fixed price contracts for at least 10%, but not more than 20%, of forecasted system supply requirements for flowing (i.e., non-storage) gas for the November through March period. These fixed-price contracts are not subject to sharing under the MBR mechanism. BGE also ensures it has sufficient pipeline transportation capacity to meet customer requirements. BGE’s natural gas supply and asset management agreements qualify for the NPNS scope exception and result in physical delivery.
Pepco has contracts to procure SOS electric supply that are executed through a competitive procurement process approved by the MDPSC and DCPSC. The SOS rates charged recover Pepco's wholesale power supply costs and include an administrative fee. The administrative fee includes an incremental cost component and a shareholder return component for residential and commercial rate classes. Pepco’s commodity price risk related to electric supply procurement is limited. Pepco locks in fixed prices for its SOS requirements through full requirements contracts. Certain of Pepco’s full requirements contracts, which are considered derivatives, qualify for the NPNS scope exception under current derivative authoritative guidance. Other Pepco full requirements contracts are not derivatives.
DPL has contracts to procure SOS electric supply that are executed through a competitive procurement process approved by the MDPSC and the DPSC. The SOS rates charged recover DPL's wholesale power supply costs. In Delaware, DPL is also entitled to recover a Reasonable Allowance for Retail Margin (RARM). The RARM includes a fixed annual margin of approximately $2.75 million, plus an incremental cost component and a cash working capital allowance. In Maryland, DPL charges an administrative fee intended to allow it to recover its administrative costs. DPL locks in fixed prices for its SOS requirements through full requirements contracts. DPL’s commodity price risk related to electric supply procurement is limited. Certain of DPL’s full requirements contracts, which are considered

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

derivatives, qualify for the NPNS scope exception under current derivative authoritative guidance. Other DPL full requirements contracts are not derivatives.
DPL provides natural gas to its customers under an Annual GCR mechanism approved by the DPSC. Under this mechanism, DPL’s Annual GCR Filing establishes a future GCR for firm bundled sales customers by using a forecast of demand and commodity costs. The actual costs are trued up against forecast on a monthly basis and any shortfall or excess is carried forward as a recovery balance in the next GCR filing. The demand portion of the GCR is based upon DPL’s firm transportation and storage contracts. DPL has firm deliverability of swing and seasonal storage; a liquefied natural gas facility and firm transportation capacity to meet customer demand and provide a reserve margin. The commodity portion of the GCR includes a commission approved hedging program which is intended to reduce gas commodity price volatility while limiting the firm natural gas customers’ exposure to adverse changes in the market price of natural gas. The hedge program requires that DPL hedge, on a non-discretionary basis, an amount equal to 50% of estimated purchase requirements for each month, including estimated monthly purchases for storage injections. The 50% hedge monthly target is achieved by hedging 1/12th of the 50% target each month beginning 12-months prior to the month in which the physical gas is to be purchased. Currently, DPL uses only exchange traded futures for its gas hedging program, which are considered derivatives, however, it retains the capability to employ other physical and financial hedges if needed. DPL has not elected hedge accounting for these derivative financial instruments. Because of the DPSC-approved fuel adjustment clause for DPL's derivatives, the change in fair value of the derivatives each period, in addition to all premiums paid and other transaction costs incurred as part of the Gas Hedging Program, are fully recoverable and are recorded by DPL as regulatory assets or liabilities. DPL’s physical gas purchases are currently all daily, monthly or intra-month transactions. From time to time, DPL will enter into seasonal purchase or sale arrangements, however, there are none currently in the portfolio. Certain of DPL's full requirements contracts, which are considered derivatives, qualify for the NPNS scope exception under current derivative authoritative guidance. Other DPL full requirements contracts are not derivatives.
ACE has contracts to procure BGS electric supply that are executed through a competitive procurement process approved by the NJBPU. The BGS rates charged recover ACE's wholesale power supply costs. ACE does not make any profit or incur any loss on the supply component of the BGS it supplies to customers. ACE’s commodity price risk related to electric supply procurement is limited. ACE locks in fixed prices for its BGS requirements through full requirements contracts. Certain of ACE’s full requirements contracts, which are considered derivatives, qualify for the NPNS scope exception under current derivative authoritative guidance. Other ACE full requirements contracts are not derivatives.
Proprietary Trading (Commodity Price Risk)
Generation also executes commodity derivatives for proprietary trading purposes. Proprietary trading includes all contracts entered into with the intent of benefiting from shifts or changes in market prices as opposed to those executed with the intent of hedging or managing risk. Proprietary trading activities are subject to limits established by Exelon’s RMC. The proprietary trading portfolio is subject to a risk management policy that includes stringent risk management limits to manage exposure to market risk. Additionally, the Exelon risk management group and Exelon's RMC monitor the financial risks of the proprietary trading activities. The proprietary trading activities are a complement to Generation's energy marketing portfolio, but represent a small portion of Generation's overall revenue from energy marketing activities. Gains and losses associated with proprietary trading are reported as Operating revenues in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income. For the years ended December 31, 2017, 2016 and 2015, Exelon and Generation recognized the following net pre-tax commodity mark-to-market gains (losses) which are also included in the "Net fair value changes related to derivatives" on the Consolidated Statements of Cash Flows. The Utility Registrants do not execute derivatives for proprietary trading purposes.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

  For the Years Ended December 31,
  2017 2016 2015
Income Statement Location Gain (Loss)
Operating revenues $6
 $2
 $(6)
Interest Rate and Foreign Exchange Risk (All Registrants)
The Registrants use a combination of fixed-rate and variable-rate debt to manage interest rate exposure. The Registrants utilize fixed-to-floating interest rate swaps, which are typically designated as fair value hedges, to manage their interest rate exposure. In addition, the Registrants may utilize interest rate derivatives to lock in rate levels, which are typically designated as cash flow hedges to manage interest rate risk. To manage foreign exchange rate exposure associated with international commodity purchases in currencies other than U.S. dollars, Generation utilizes foreign currency derivatives, which are treated as economic hedges. Below is a summary of the interest rate and foreign exchange hedge balances as of December 31, 2017:
 Generation Exelon Corporate Exelon
Description
Derivatives
Designated
as Hedging
Instruments
 
Economic
Hedges
 Proprietary
Trading
 
Collateral
and
Netting(a)
 Subtotal Derivatives
Designated
as Hedging
Instruments
 Total
Mark-to-market derivative assets (current assets)$

$10

$
 $(7) $3
 $
 $3
Mark-to-market derivative assets (noncurrent assets)3




 
 3
 3
 6
Total mark-to-market derivative assets3

10


 (7) 6
 3
 9
Mark-to-market derivative liabilities (current liabilities)(2)
(7)

 7
 (2) 
 (2)
Mark-to-market derivative liabilities (noncurrent liabilities)

(2)

 
 (2) 
 (2)
Total mark-to-market derivative liabilities(2)
(9)

 7
 (4) 
 (4)
Total mark-to-market derivative net assets (liabilities)$1

$1

$
 $
 $2
 $3
 $5
__________
(a)Exelon and Generation net all available amounts allowed under the derivative authoritative guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral. In some cases, Exelon and Generation may have other offsetting counterparty exposures subject to a master netting or similar agreement, such as accrued interest, transactions that do not qualify as derivatives, letters of credit and other forms of non-cash collateral, which are not reflected in the table above.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table provides a summary of the interest rate and foreign exchange hedge balances recorded by the Registrants as of December 31, 2016:
 Generation Exelon Corporate Exelon
Description
Derivatives
Designated
as Hedging
Instruments
 
Economic
Hedges
 
Proprietary
Trading
(a)
 
Collateral
and
Netting(b)
 Subtotal Derivatives
Designated
as Hedging
Instruments
 Total
Mark-to-market derivative assets (current assets)$

$17

$4

$(13) $8
 $
 $8
Mark-to-market derivative assets (noncurrent assets)

11

1

(8) 4
 16
 20
Total mark-to-market derivative assets

28

5

(21) 12
 16

28
Mark-to-market derivative liabilities (current liabilities)(7)
(13)
(2)
14
 (8) 
 (8)
Mark-to-market derivative liabilities (noncurrent liabilities)(3)
(8)
(2)
9
 (4) 
 (4)
Total mark-to-market derivative liabilities(10)
(21)
(4)
23
 (12) 

(12)
Total mark-to-market derivative net assets (liabilities)$(10)
$7

$1

$2
 $
 $16

$16
__________
(a)Generation enters into interest rate derivative contracts to economically hedge risk associated with the interest rate component of commodity positions. The characterization of the interest rate derivative contracts between the proprietary trading activity in the above table is driven by the corresponding characterization of the underlying commodity position that gives rise to the interest rate exposure. Generation does not utilize proprietary trading interest rate derivatives with the objective of benefiting from shifts or changes in market interest rates.
(b)Exelon and Generation net all available amounts allowed under the derivative authoritative guidance on the balance sheet. These amounts include unrealized derivative transactions with the same counterparty under legally enforceable master netting agreements and cash collateral. In some cases, Exelon and Generation may have other offsetting counterparty exposures subject to a master netting or similar agreement, such as accrued interest, transactions that do not qualify as derivatives, letters of credit and other forms of non-cash collateral, which are not reflected in the table above.
Fair Value Hedges (Interest Rate Risk)
For derivative instruments that qualify and are designated as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings immediately. Exelon and Generation include the gain or loss on the hedged items and the offsetting loss or gain on the related interest rate swaps as follows:
   Year Ended December 31,
  Income Statement Location 2017 2016 2015 2017 2016 2015
  Gain (Loss) on Swaps Gain (Loss) on Borrowings
Generation
Interest expense(a)
 $
 $
 $(1) $
 $
 $
ExelonInterest expense (13) (9) 3
 28
 23
 14
__________
(a)For the year ended December 31, 2015, the loss on Generation swaps included $(1) million realized in earnings with an immaterial amount excluded from hedge effectiveness testing.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The table below provides the notional amounts of fixed-to-floating hedges outstanding held by Exelon at December 31, 2017 and 2016.
  For the Years Ended December 31,
  2017 2016
Fixed-to-floating hedges $800
 $800
During the years ended December 31, 2017, 2016 and 2015, the impact on the results of operations due to ineffectiveness from fair value hedges were gains of $15 million, $14 million and $17 million, respectively.
Cash Flow Hedges (Interest Rate Risk)
For derivative instruments that qualify and are designated as cash flow hedges, the gain or loss on the effective portion of the derivative will be deferred in AOCI and reclassified into earnings when the underlying transaction occurs. To mitigate interest rate risk, Exelon and Generation enter into floating-to-fixed interest rate swaps to manage a portion of interest rate exposure associated with debt issuances. The table below provides the notional amounts of floating-to-fixed hedges outstanding held by Exelon and Generation at December 31, 2017 and 2016.
  For the Years Ended December 31,
  2017 2016
Floating-to-fixed hedges $636
 $659
The tables below provide the activity of OCI related to cash flow hedges for the years ended December 31, 2017 and 2016, containing information about the changes in the fair value of cash flow hedges and the reclassification from AOCI into results of operations. The amounts reclassified from AOCI, when combined with the impacts of the hedged transactions, result in the ultimate recognition of net revenues or expenses at the contractual price.
    Total Cash Flow Hedge AOCI Activity, Net of Income Tax                    
    Generation Exelon 
For the Year Ended December 31, 2017 Income Statement Location Total Cash 
Flow Hedges
 
Total Cash 
Flow Hedges
 
AOCI derivative loss at December 31, 2016   $(19) $(17) 
Effective portion of changes in fair value   (1) (1) 
Reclassifications from AOCI to net income Interest expense 4
(a) 
4
(a) 
AOCI derivative loss at December 31, 2017   $(16) $(14) 

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

    Total Cash Flow Hedge AOCI Activity, Net of Income Tax                    
    Generation Exelon 
For the Year Ended December 31, 2016 Income Statement Location Total Cash 
Flow Hedges
 
Total Cash
Flow Hedges
 
AOCI derivative loss at December 31, 2015   $(21) $(19) 
Effective portion of changes in fair value   (6)
  
(6) 
Reclassifications from AOCI to net income Interest expense 8
(b) 
8
(b) 
AOCI derivative loss at December 31, 2016   $(19) $(17) 
__________
(a)Amount is net of related income tax expense of $1 million for the year ended December 31, 2017.
(b)Amount is net of related income tax expense of $5 million for the year ended December 31, 2016.
During the years ended December 31, 2017, 2016 and 2015, the impact on the results of operations due to the ineffectiveness from cash flow hedges that continue to be designated in hedging relationships was immaterial. The estimated amount of existing gains and losses that are reported in AOCI at the reporting date that are expected to be reclassified into earnings within the next twelve months is immaterial.
Economic Hedges (Interest Rate and Foreign Exchange Risk)
Exelon and Generation executes these instruments to mitigate exposure to fluctuations in interest rates or foreign exchange but for which the fair value or cash flow hedge elections were not made. Generation also enters into interest rate derivative contracts and foreign exchange currency swaps ("treasury") to manage the exposure related to the interest rate component of commodity positions and international purchases of commodities in currencies other than U.S. Dollars.
At December 31, 2017 and 2016, Generation had immaterial notional amounts of interest rate derivative contracts to economically hedge risk associated with the interest rate component of commodity positions. The following table provides notional amounts outstanding held by Exelon and Generation at December 31, 2017 and 2016 related to foreign currency exchange rate swaps that are marked-to-market to manage the exposure associated with international purchases of commodities in currencies other than U.S. dollars.
  For the Years Ended December 31,
  2017 2016
Foreign currency exchange rate swaps $94
 $85
For the years ended December 31, 2017, 2016 and 2015, Exelon and Generation recognized the following net pre-tax mark-to-market gains (losses) in the Consolidated Statements of Operations and Comprehensive Income and are included in “Net fair value changes related to derivatives” in Exelon’s and Generation’s Consolidated Statements of Cash Flows.
    For the Years Ended December 31,
    2017 2016 2015
  Income Statement Location Gain (Loss)
Generation Operating Revenues $(6) $(10) $7
Generation Interest Expense (3) 
 
Total Generation   $(9) $(10) $7

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

    For the Years Ended December 31,
    2017 2016 2015
  Income Statement Location Gain (Loss)
Exelon Operating Revenues $(6) $(10) $7
Exelon Interest Expense (3) 
 100
Total Exelon   $(9) $(10) $107
Proprietary Trading (Interest Rate and Foreign Exchange Risk)
Generation also executes derivative contracts for proprietary trading purposes to hedge risk associated with the interest rate and foreign exchange components of underlying commodity positions. Gains and losses associated with proprietary trading are reported as Operating revenues in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income and are included in “Net fair value changes related to derivatives” in Exelon’s and Generation’s Consolidated Statements of Cash Flows. For the years ended December 31, 2017, 2016 and 2015, Exelon and Generation recognized the following net pre-tax commodity mark-to-market gains (losses).
  For the Years Ended December 31,
  2017 2016 2015
Income Statement Location Gain (Loss)
Operating revenues $(1) $(1) $(2)
Credit Risk, Collateral and Contingent-Related Features (All Registrants)
The Registrants would be exposed to credit-related losses in the event of non-performance by counterparties on executed derivative instruments. The credit exposure of derivative contracts, before collateral, is represented by the fair value of contracts at the reporting date. For commodity derivatives, Generation enters into enabling agreements that allow for payment netting with its counterparties, which reduces Generation’s exposure to counterparty risk by providing for the offset of amounts payable to the counterparty against amounts receivable from the counterparty. Typically, each enabling agreement is for a specific commodity and so, with respect to each individual counterparty, netting is limited to transactions involving that specific commodity product, except where master netting agreements exist with a counterparty that allow for cross product netting. In addition to payment netting language in the enabling agreement, Generation’s credit department establishes credit limits, margining thresholds and collateral requirements for each counterparty, which are defined in the derivative contracts. Counterparty credit limits are based on an internal credit review process that considers a variety of factors, including the results of a scoring model, leverage, liquidity, profitability, credit ratings by credit rating agencies, and risk management capabilities. To the extent that a counterparty’s margining thresholds are exceeded, the counterparty is required to post collateral with Generation as specified in each enabling agreement. Generation’s credit department monitors current and forward credit exposure to counterparties and their affiliates, both on an individual and an aggregate basis.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following tables provide information on Generation’s credit exposure for all derivative instruments, NPNS, and applicable payables and receivables, net of collateral and instruments that are subject to master netting agreements, as of December 31, 2017. The tables further delineate that exposure by credit rating of the counterparties and provide guidance on the concentration of credit risk to individual counterparties. The figures in the tables below exclude credit risk exposure from individual retail counterparties, nuclear fuel procurement contracts and exposure through RTOs, ISOs, NYMEX, ICE, NASDAQ, NGX and Nodal commodity exchanges. Additionally, the figures in the tables below exclude exposures with affiliates, including net receivables with ComEd, PECO, BGE, Pepco, DPL and ACE of $28 million, $22 million, $24 million, $36 million, $12 million and $6 million as of December 31, 2017, respectively.
Rating as of December 31, 2017
Total
Exposure
Before Credit
Collateral
 
Credit
Collateral (a)
 
Net
Exposure
 
Number of
Counterparties
Greater than 10%
of Net Exposure
 
Net Exposure of
Counterparties
Greater than 10%
of Net Exposure
Investment grade$738

$4
 $734
 1
 $244
Non-investment grade90

12
 78
 
 
No external ratings


 
    
Internally rated — investment grade253


 253
 
 
Internally rated — non-investment grade83

11
 72
 
 
Total$1,164

$27
 $1,137
 1
 $244
Net Credit Exposure by Type of CounterpartyDecember 31, 2017
Financial institutions$41
Investor-owned utilities, marketers, power producers558
Energy cooperatives and municipalities452
Other86
Total$1,137
__________
(a)As of December 31, 2017, credit collateral held from counterparties where Generation had credit exposure included $8 million of cash and $19 million of letters of credit. The credit collateral does not include non-liquid collateral.
ComEd’s power procurement contracts provide suppliers with a certain amount of unsecured credit. The credit position is based on daily, updated forward market prices compared to the benchmark prices. The benchmark prices are the forward prices of energy projected through the contract term and are set at the point of supplier bid submittals. If the forward market price of energy exceeds the benchmark price on a given day, the suppliers are required to post collateral for the secured credit portion after adjusting for any unpaid deliveries and unsecured credit allowed under the contract. The unsecured credit used by the suppliers represents ComEd’s net credit exposure. As of December 31, 2017, ComEd’s net credit exposure to suppliers was approximately $1 million.
ComEd is permitted to recover its costs of procuring energy through the Illinois Settlement Legislation. ComEd’s counterparty credit risk is mitigated by its ability to recover realized energy costs through customer rates. See Note 3 — Regulatory Matters for additional information.
PECO’s unsecured credit used by the suppliers represents PECO’s net credit exposure. As of December 31, 2017, PECO had no net credit exposure to suppliers.
PECO’s natural gas procurement plan is reviewed and approved annually on a prospective basis by the PAPUC. PECO’s counterparty credit risk under its natural gas supply and asset management agreements is mitigated by its ability to recover its natural gas costs through the PGC, which allows

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PECO to adjust rates quarterly to reflect realized natural gas prices. PECO does not obtain collateral from suppliers under its natural gas supply and asset management agreements. As of December 31, 2017, PECO had no material credit exposure under its natural gas supply and asset management agreements with investment grade suppliers.
BGE is permitted to recover its costs of procuring energy through the MDPSC-approved procurement tariffs. BGE’s counterparty credit risk is mitigated by its ability to recover realized energy costs through customer rates. See Note 3 — Regulatory Matters for additional information.
BGE’s full requirement wholesale electric power agreements that govern the terms of its electric supply procurement contracts, which define a supplier’s performance assurance requirements, allow a supplier, or its guarantor, to meet its credit requirements with a certain amount of unsecured credit. As of December 31, 2017, BGE had no net credit exposure to suppliers.
BGE’s regulated gas business is exposed to market-price risk. At December 31, 2017, BGE had credit exposure of $4 million related to off-system sales which is mitigated by parental guarantees, letters of credit, or right to offset clauses within other contracts with those third-party suppliers.
Pepco’s, DPL's and ACE's power procurement contracts provide suppliers with a certain amount of unsecured credit. The amount of unsecured credit is determined based on the supplier’s lowest credit rating from the major credit rating agencies and the supplier’s tangible net worth. The credit position is based on the initial market price, which is the forward price of energy on the day a transaction is executed, compared to the current forward price curve for energy. To the extent that the forward price curve for energy exceeds the initial market price, the supplier is required to post collateral to the extent the credit exposure is greater than the supplier’s unsecured credit limit. The unsecured credit used by the suppliers represents Pepco’s, DPL's and ACE's net credit exposure. As of December 31, 2017, Pepco’s, DPL's and ACE's net credit exposures to suppliers were immaterial.
Pepco is permitted to recover its costs of procuring energy through the MDPSC-approved and DCPSC-approved procurement tariffs. DPL is permitted to recover its costs of procuring energy through the MDPSC-approved and DPSC-approved procurement tariffs. ACE is permitted to recover its costs of procuring energy through the NJBPU-approved procurement tariffs. Pepco’s, DPL's and ACE's counterparty credit risks are mitigated by their ability to recover realized energy costs through customer rates. See Note 3 — Regulatory Matters for additional information.
DPL’s natural gas procurement plan is reviewed and approved annually on a prospective basis by the DPSC. DPL’s counterparty credit risk under its natural gas supply and asset management agreements is mitigated by its ability to recover its natural gas costs through the GCR, which allows DPL to adjust rates annually to reflect realized natural gas prices. To the extent that the fair value of the transactions in a net loss position exceeds the unsecured credit threshold, then collateral is required to be posted in an amount equal to the amount by which the unsecured credit threshold is exceeded. Exchange-traded contracts are required to be fully collateralized without regard to the credit rating of the holder. As of December 31, 2017, DPL's credit exposure under its natural gas supply and asset management agreements was immaterial.
Collateral (All Registrants)
As part of the normal course of business, Generation routinely enters into physically or financially settled contracts for the purchase and sale of electric capacity, electricity, fuels, emissions allowances and other energy-related products. Certain of Generation’s derivative instruments contain provisions that require Generation to post collateral. Generation also enters into commodity transactions on exchanges. The exchanges act as the counterparty to each trade. Transactions on the exchanges must adhere to comprehensive collateral and margining requirements. This collateral may be posted in the form of cash or credit support with thresholds contingent upon Generation’s credit rating from each of

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

the major credit rating agencies. The collateral and credit support requirements vary by contract and by counterparty. These credit-risk-related contingent features stipulate that if Generation were to be downgraded or lose its investment grade credit rating (based on its senior unsecured debt rating), it would be required to provide additional collateral. This incremental collateral requirement allows for the offsetting of derivative instruments that are assets with the same counterparty, where the contractual right of offset exists under applicable master netting agreements. In the absence of expressly agreed-to provisions that specify the collateral that must be provided, collateral requested will be a function of the facts and circumstances of the situation at the time of the demand. In this case, Generation believes an amount of several months of future payments (i.e., capacity payments) rather than a calculation of fair value is the best estimate for the contingent collateral obligation, which has been factored into the disclosure below.
The aggregate fair value of all derivative instruments with credit-risk-related contingent features in a liability position that are not fully collateralized (excluding transactions on the exchanges that are fully collateralized) is detailed in the table below:
 For the Years Ended December 31,
Credit-Risk Related Contingent Feature2017 2016
Gross fair value of derivative contracts containing this feature(a)
$(926) $(960)
Offsetting fair value of in-the-money contracts under master netting arrangements(b)
577
 627
Net fair value of derivative contracts containing this feature(c)
$(349) $(333)
__________
(a)Amount represents the gross fair value of out-of-the-money derivative contracts containing credit-risk-related contingent features ignoring the effects of master netting agreements.
(b)Amount represents the offsetting fair value of in-the-money derivative contracts under legally enforceable master netting agreements with the same counterparty, which reduces the amount of any liability for which a Registrant could potentially be required to post collateral.
(c)Amount represents the net fair value of out-of-the-money derivative contracts containing credit-risk related contingent features after considering the mitigating effects of offsetting positions under master netting arrangements and reflects the actual net liability upon which any potential contingent collateral obligations would be based.
Generation had cash collateral posted of $497 million and letters of credit posted of $293 million, and cash collateral held of $35 million and letters of credit held of $33 million as of December 31, 2017 for external counterparties with derivative positions. Generation had cash collateral posted of $347 million and letters of credit posted of $284 million and cash collateral held of $24 million and letters of credit held of $28 million at December 31, 2016 for external counterparties with derivative positions. In the event of a credit downgrade below investment grade (i.e., to BB+ by S&P or Ba1 by Moody's), Generation would have been required to post additional collateral of $1.8 billion and $1.9 billion as of December 31, 2017 and 2016, respectively. These amounts represent the potential additional collateral required after giving consideration to offsetting derivative and non-derivative positions under master netting agreements.
Generation’s and Exelon’s interest rate swaps contain provisions that, in the event of a merger, if Generation’s debt ratings were to materially weaken, it would be in violation of these provisions, resulting in the ability of the counterparty to terminate the agreement prior to maturity. Collateralization would not be required under any circumstance. Termination of the agreement could result in a settlement payment by Exelon or the counterparty on any interest rate swap in a net liability position. The settlement amount would be equal to the fair value of the swap on the termination date. As of December 31, 2017, Generation’s and Exelon's swaps were in an asset position with a fair value of $2 million and $5 million, respectively.
See Note 25 — Segment Information for further information regarding the letters of credit supporting the cash collateral.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Generation entered into supply forward contracts with certain utilities, including PECO and BGE, with one-sided collateral postings only from Generation. If market prices fall below the benchmark price levels in these contracts, the utilities are not required to post collateral. However, when market prices rise above the benchmark price levels, counterparty suppliers, including Generation, are required to post collateral once certain unsecured credit limits are exceeded. Under the terms of ComEd’s standard block energy contracts, collateral postings are one-sided from suppliers, including Generation, should exposures between market prices and benchmark prices exceed established unsecured credit limits outlined in the contracts. As of December 31, 2017, ComEd held approximately $10 million in collateral from suppliers in association with energy procurement contracts. Under the terms of ComEd’s renewable energy certificate (REC) contracts, collateral postings are required to cover a percentage of the REC contract value. As of December 31, 2017, ComEd held approximately $2 million in collateral from suppliers for REC contract obligations. Under the terms of ComEd’s long-term renewable energy contracts, collateral postings are required from suppliers for both RECs and energy. The REC portion is a fixed value and the energy portion is one-sided from suppliers should the forward market prices exceed contract prices. As of December 31, 2017, ComEd held approximately $19 million in collateral from suppliers for the long-term renewable energy contracts. If ComEd lost its investment grade credit rating as of December 31, 2017, it would have been required to post approximately $14 million of collateral to its counterparties. See Note 3 — Regulatory Matters for additional information.
PECO’s natural gas procurement contracts contain provisions that could require PECO to post collateral. This collateral may be posted in the form of cash or credit support with thresholds contingent upon PECO’s credit rating from the major credit rating agencies. The collateral and credit support requirements vary by contract and by counterparty. As of December 31, 2017, PECO was not required to post collateral for any of these agreements. If PECO lost its investment grade credit rating as of December 31, 2017, PECO could have been required to post approximately $34 million of collateral to its counterparties.
PECO’s supplier master agreements that govern the terms of its DSP Program contracts do not contain provisions that would require PECO to post collateral.
BGE’s natural gas procurement contracts contain provisions that could require BGE to post collateral. This collateral may be posted in the form of cash or credit support with thresholds contingent upon BGE’s credit rating from the major credit rating agencies. The collateral and credit support requirements vary by contract and by counterparty. As of December 31, 2017, BGE was not required to post collateral for any of these agreements. If BGE lost its investment grade credit rating as of December 31, 2017, BGE could have been required to post approximately $66 million of collateral to its counterparties.
DPL's natural gas procurement contracts contain provisions that could require DPL to post collateral. To the extent that the fair value of the natural gas derivative transaction in a net loss position exceeds the unsecured credit threshold, then collateral is required to be posted in an amount equal to the amount by which the unsecured credit threshold is exceeded. The DPL obligations are standalone, without the guaranty of PHI. If DPL lost its investment grade credit rating as of December 31, 2017, DPL could have been required to post an additional amount of approximately $11 million of collateral to its natural gas counterparties.
BGE's, Pepco's, DPL's and ACE’s full requirements wholesale power agreements that govern the terms of its electric supply procurement contracts do not contain provisions that would require BGE, Pepco, DPL or ACE to post collateral.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

13. Debt and Credit Agreements (All Registrants)
Short-Term Borrowings
Exelon Corporate, ComEd, and BGE meet their short-term liquidity requirements primarily through the issuance of commercial paper. Generation and PECO meet theirmeets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the intercompany money pool. PHI meets its short-term liquidity requirements primarily through the issuance of short-term notes and the Exelon intercompany money pool. Pepco, DPL, and ACE meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the PHI intercompany money pool. PHI Corporate meets its short-term notes.liquidity requirements primarily through the issuance of short-term notes and borrowings from the Exelon intercompany money pool. The Registrants may use their respective credit facilities for general corporate purposes, including meeting short-term funding requirements and the issuance of letters of credit.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
Commercial Paper
The following table reflects the Registrants' commercial paper programs supported by the revolving credit agreements and bilateral credit agreements atas of December 31, 20172022 and 2016:2021:
Maximum
Program Size at
December 31,
 
Outstanding
Commercial
Paper at
December 31,
 
Average Interest Rate on
Commercial Paper Borrowings for
the Year Ended December 31,
Credit Facility Size
as of December 31,
Outstanding Commercial
Paper as of December 31,
Average Interest Rate on
Commercial Paper Borrowings
as of December 31,
Commercial Paper Issuer
2017(a)(b)(c)
 
2016(a)(b)(c)
 2017 2016 2017 2016Commercial Paper Issuer
2022(a)
2021(a)
2022202120222021
Exelon Corporate$600
 $600
 $
 $
 1.16% 0.70%
Generation5,300
 5,300
 
 620
 1.23% 0.94%
Exelon(b)
Exelon(b)
$4,000 $3,700 $1,938 $599 4.77 %0.35 %
ComEd1,000
 1,000
 
 
 1.24% 0.77%ComEd1,000 1,000 427 — 4.71 %— %
PECO600
 600
 
 
 1.13% N/A
PECO600 600 239 — 4.71 %— %
BGE600
 600
 77
 45
 1.28% 0.77%BGE600 600 409 130 4.81 %0.37 %
PHI(c)
PHI(c)
900 900 414 469 4.78 %0.35 %
Pepco500
 500
 26
 23
 1.06% 0.71%Pepco300 (d)300 299 175 4.79 %0.33 %
DPL500
 500
 216
 
 1.48% 0.68%DPL300 (d)300 115 149 4.76 %0.36 %
ACE350
 350
 108
 
 1.43% 0.65%ACE300 (d)300 — 145 — %0.35 %
Total$9,450

$9,450

$427

$688
    
__________
(a)Excludes $480 million and $500 million in bilateral credit facilities that do not back Generation's commercial paper program at December 31, 2017 and 2016, respectively.
(b)Excludes additional credit facility agreements for Generation, ComEd, PECO, BGE, Pepco, DPL and ACE with aggregate commitments of $49 million, $34 million, $34 million, $5 million, $2 million, $2 million and $2 million, respectively, arranged with minority and community banks located primarily within utilities' service territories. These facilities expire on October 12, 2018. These facilities are solely utilized to issue letters of credit. As of December 31, 2017, letters of credit issued under these facilities totaled $5 million and $2 million for Generation and BGE, respectively.
(c)Pepco, DPL and ACE's revolving credit facility is subject to available borrowing capacity. The borrowing capacity may be increased or decreased during the term of the facility, except that (i) the sum of the borrowing capacity must equal the total amount of the facility, and (ii) the aggregate amount of credit used at any given time by each of Pepco, DPL or ACE may not exceed $900 million or the maximum amount of short-term debt the company is permitted to have outstanding by its regulatory authorities. The total number of the borrowing reallocations may not exceed eight per year during the term of the facility.
(a)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(b)Includes revolving credit agreements at Exelon Corporate with a maximum program size of $900 million and $600 million as of December 31, 2022 and December 31, 2021, respectively. Exelon Corporate had $449 million in outstanding commercial paper as of December 31, 2022 and no outstanding commercial paper as of December 31, 2021.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
(d)The standard maximum program size for revolving credit facilities is $300 million each for Pepco, DPL and ACE based on the credit agreements in place. However, the facilities at Pepco, DPL, and ACE have the ability to flex to $500 million, $500 million, and $350 million, respectively. The borrowing capacity may be increased or decreased during the term of the facility, except that (i) the sum of the borrowing capacity must equal the total amount of the facility, and (ii) the aggregate amount of credit used at any given time by each of Pepco, DPL, or ACE may not exceed $900 million or the maximum amount of short-term debt the company is permitted to have outstanding by its regulatory authorities. The total number of the borrowing reallocations may not exceed eight per year during the term of the facility. As of December 23, 2022, this ability was utilized to increase Pepco's program size to $400 million. As a result, the program sizes for DPL and ACE were decreased to $250 million each, which prevents the aggregate amount of outstanding short-term debt from potentially exceeding the $900 million limit.
In order to maintain their respective commercial paper programs in the amounts indicated above, each Registrant must have credit facilities in place, at least equal to the amount of its commercial paper program. While the amount of outstanding commercial paper does not reduce available capacity under a Registrant’s credit facility, a RegistrantA registrant does not issue commercial paper in an aggregate amount exceeding the then available capacity under its credit facility.

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Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 16 — Debt and Credit Agreements
AtAs of December 31, 2017,2022, the Registrants had the following aggregate bank commitments, credit facility borrowings, and available capacity under their respective credit facilities:
Available Capacity as of December 31, 2022
       Available Capacity at December 31, 2017
BorrowerFacility Type 
Aggregate Bank
Commitment
(a)(b)
 Facility Draws 
Outstanding
Letters of Credit(c)
 Actual 
To Support
Additional
Commercial
Paper
(b)(d)
Exelon CorporateSyndicated Revolver $600
 $
 $45
 $555
 $555
GenerationSyndicated Revolver 5,300
 
 868
 4,432
 4,432
GenerationBilaterals 480
 
 231
 249
 
Borrower(a)
Borrower(a)
Facility Type
Aggregate Bank
Commitment
(b)
Facility DrawsOutstanding
Letters of Credit
Actual
To Support
Additional
Commercial
Paper
(c)
Exelon(c)
Exelon(c)
Syndicated Revolver$4,000 $— $$3,992 $2,054 
ComEdSyndicated Revolver 1,000
 
 2
 998
 998
ComEdSyndicated Revolver1,000 — 995 568 
PECOSyndicated Revolver 600
 
 1
 599
 599
PECOSyndicated Revolver600 — — 600 361 
BGESyndicated Revolver 600
 
 
 600
 523
BGESyndicated Revolver600 — — 600 191 
PHI(d)
PHI(d)
Syndicated Revolver900 — — 900 486 
PepcoSyndicated Revolver 300
 
 
 300
 274
PepcoSyndicated Revolver300 — — 300 
DPLSyndicated Revolver 300
 
 
 300
 84
DPLSyndicated Revolver300 — — 300 185 
ACESyndicated Revolver 300
 
 
 300
 192
ACESyndicated Revolver300 — — 300 300 
Total $9,480
 $
 $1,147
 $8,333
 $7,657
__________
(a)
Excludes additional credit facility agreements for Generation, ComEd, PECO, BGE, Pepco, DPL and ACE with aggregate commitments of $49 million, $34 million, $34 million, $5 million, $2 million, $2 million and $2 million, respectively, arranged with minority and community banks located primarily within utilities' service territories. These facilities expire on October 12, 2018. These facilities are solely utilized to issue letters of credit. As of December 31, 2017, letters of credit issued under these facilities totaled $5 million and $2 million for Generation and BGE, respectively.
(b)Pepco, DPL and ACE's revolving credit facility is subject to available borrowing capacity. The borrowing capacity may be increased or decreased during the term of the facility, except that (i) the sum of the borrowing capacity must equal the total amount of the facility, and (ii) the aggregate amount of credit used at any given time by each of Pepco, DPL or ACE may not exceed $900 million or the maximum amount of short-term debt the company is permitted to have outstanding by its regulatory authorities. The total number of the borrowing reallocations may not exceed eight per year during the term of the facility.
(c)Excludes nonrecourse debt letters of credit, see discussion below on Antelope Valley Solar Ranch One and Continental Wind.
(d)Excludes $480 million in bilateral credit facilities that do not back Generation’s commercial paper program.

(a)On February 1, 2022, Exelon Corporate and the Utility Registrants' respective syndicated revolving credit facilities were replaced with a new 5-year revolving credit facility.
(b)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(c)Includes $900 million aggregate bank commitment related to Exelon Corporate. Exelon Corporate had $3 million outstanding letters of credit as of December 31, 2022. Exelon Corporate had $448 million in available capacity to support additional commercial paper as of December 31, 2022.
(d)Represents the consolidated amounts of Pepco, DPL, and ACE.
The following table reflects the Registrants' credit facility agreements arranged at minority and community banks as of December 31, 2022 and 2021. These are excluded from the Maximum Program Size and Aggregate Bank Commitment amounts within the two tables above and the facilities are solely used to issue letters of credit.
Aggregate Bank CommitmentsOutstanding Letters of Credit
Borrower
2022(a)
202120222021
Exelon(b)
$140 $98 $10 $
ComEd40 33 
PECO40 33 
BGE15 
PHI(c)
45 24 — — 
Pepco15 — — 
DPL15 — — 
ACE15 — — 
__________
(a)These facilities were entered into on October 7, 2022 and expire on October 6, 2023.
(b)Represents the consolidated amounts of ComEd, PECO, BGE, Pepco, DPL, and ACE.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
Revolving Credit Agreements
On February 1, 2022, Exelon Corporate and the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. The following table reflects the credit agreements:
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Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


The following tables present the short-term borrowings activity for Exelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPLNote 16 — Debt and ACE during 2017, 2016 and 2015.
Credit Agreements
Exelon      
 2017 2016  2015
Average borrowings$823
 $1,125
  $499
Maximum borrowings outstanding2,147
 3,076
  739
Average interest rates, computed on a daily basis1.32% 0.88%  0.53%
Average interest rates, at December 311.24% 1.12%  0.88%
       
Generation      
 2017 2016  2015
Average borrowings$405
 $536
  $1
Maximum borrowings outstanding1,455
 1,735
  50
Average interest rates, computed on a daily basis1.23% 0.94%  0.49%
Average interest rates, at December 311.23% 1.14%  N/A
ComEd      
 2017 2016  2015
Average borrowings$200
 $256
  $461
Maximum borrowings outstanding470
 755
  684
Average interest rates, computed on a daily basis1.24% 0.77%  0.53%
Average interest rates, at December 311.24% N/A
  0.89%
       
PECO      
 2017 2016  2015
Average borrowings$2
 $
  $
Maximum borrowings outstanding60
 
  
Average interest rates, computed on a daily basis1.13% N/A
  N/A
Average interest rates, at December 311.13% N/A
  N/A
       
BGE      
 2017 2016  2015
Average borrowings$54
 $143
  $37
Maximum borrowings outstanding165
 369
  210
Average interest rates, computed on a daily basis1.28% 0.77%  0.48%
Average interest rates, computed at December 311.28% 0.95%  0.87%
       

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PHI Corporate      
 Successor  Predecessor
 2017 2016  2015
Average borrowingsN/A
 $153
  $444
Maximum borrowings outstandingN/A
 559
  784
Average interest rates, computed on a daily basisN/A
 1.03%  0.90%
Average interest rates, computed at December 31N/A
 N/A
  1.22%
       
Pepco      
 2017 2016  2015
Average borrowings$51
 $4
  $34
Maximum borrowings outstanding197
 73
  190
Average interest rates, computed on a daily basis1.06% 0.71%  0.44%
Average interest rates, computed at December 311.06% 0.90%  0.68%
       
DPL      
 2017 2016  2015
Average borrowings$40
 $33
  $81
Maximum borrowings outstanding216
 116
  179
Average interest rates, computed on a daily basis1.48% 0.68%  0.47%
Average interest rates, computed at December 311.48% N/A
  0.79%
       
ACE      
 2017 2016  2015
Average borrowings$30
 $
  $175
Maximum borrowings outstanding133
 5
  253
Average interest rates, computed on a daily basis1.43% 0.65%  0.46%
Average interest rates, computed at December 311.43% N/A
  0.65%
Short-Term Loan Agreements
On July 30, 2015, PHI entered into a $300 million term loan agreement. The net proceeds of the loan were used to repay PHI's outstanding commercial paper and for general corporate purposes. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to LIBOR plus 0.95%, and all indebtedness thereunder is unsecured. On April 4, 2016, PHI repaid $300 million of its term loan in full.
On January 13, 2016, PHI entered into a $500 million term loan agreement, which was amended on March 28, 2016. The net proceeds of the loan were used to repay PHI's outstanding commercial paper, and for general corporate purposes. Pursuant to the loan agreement, as amended, loans made thereunder bear interest at a variable rate equal to LIBOR plus 1%, and all indebtedness thereunder is unsecured. On March 23, 2017, the aggregate principal amount of all loans, together with any accrued but unpaid interest due under the loan agreement was fully repaid and the loan terminated.  On March 23, 2017, Exelon Corporate entered into a similar type term loan for $500 million which expires on March 22, 2018.  Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

to LIBOR plus 1% and all indebtedness thereunder is unsecured.  The loan agreement is reflected in Exelon’s Consolidated Balance Sheet within Short-Term borrowings.
On February 22, 2016, Generation and EDF entered into separate member revolving promissory notes with CENG to finance short-term working capital needs. The notes are scheduled to mature on January 31, 2017 and bear interest at a variable rate equal to LIBOR plus 1.75%. On July 25, 2016, CENG paid off the outstanding balances under each note.
Credit Agreement
On January 5, 2016, Generation entered into a credit agreement establishing a $150 million bilateral credit facility, scheduled to mature in January of 2019. This facility will solely be utilized by Generation to issue lines of credit. This facility does not back Generation's commercial paper program.
On April 1, 2016, the credit agreement for CENG's $100 million bilateral credit facility was amended to increase the overall facility size to $200 million. This facility is utilized by CENG to fund working capital and capital projects. The facility does not back Generation's commercial paper program.
On May 26, 2016, Exelon Corporate, Generation, ComEd, PECO and BGE entered into amendments to each of their respective syndicated revolving credit facilities, which extended the maturity of each of the facilities to May 26, 2021. Exelon Corporate also increased the size of its facility from $500 million to $600 million. On May 26, 2016, PHI, Pepco, DPL and ACE entered into an amendment to their Second Amended and Restated Credit Agreement dated as of August 1, 2011, which (i) extended the maturity date of the facility to May 26, 2021, (ii) removed PHI as a borrower under the facility, (iii) decreased the size of the facility from $1.5 billion to $900 million and (iv) aligned its financial covenant from debt to capitalization leverage ratio to interest coverage ratio. On May 26, 2017, each of the Registrants' respective syndicated revolving credit facilities had their maturity dates extended to May 26, 2022.
On January 9, 2017, the credit agreement for Generation's $75 million bilateral credit facility was amended and restated to increase the facility size to $100 million and extend the maturity to January 2019. This facility will solely be used by Generation to issue letters of credit.
BorrowerAggregate Bank CommitmentInterest Rate
Exelon Corporate$900 SOFR plus 1.275 %
ComEd1,000 SOFR plus 1.000 %
PECO600 SOFR plus 0.900 %
BGE600 SOFR plus 0.900 %
Pepco300 SOFR plus 1.075 %
DPL300 SOFR plus 1.000 %
ACE300 SOFR plus 1.075 %
Borrowings under Exelon Corporate’s, Generation’s,Exelon’s, ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's revolving credit agreements bear interest at a rate based upon either the prime rate or a LIBOR-basedSOFR-based rate, plus an adder based upon the particular Registrant’s credit rating. The adders for the prime based borrowings and LIBOR-basedSOFR-based borrowings are presented in the following table:
Exelon(a)
ComEdPECOBGEPepcoDPLACE
Prime based borrowings0 - 27.5— — — 7.5 — 7.5 
SOFR-based borrowings90.0 - 127.5100.0 90.0 90.0 107.5 100.0 107.5 
 Exelon Generation ComEd PECO BGE Pepco DPL ACE
Prime based borrowings27.5 27.5 7.5 0.0 0.0 7.5 7.5 7.5
LIBOR-based borrowings127.5 127.5 107.5 90.0 100.0 107.5 107.5 107.5
__________
The(a)Includes interest rate adders at Exelon Corporate of 27.5 basis points and 127.5 basis points for prime and SOFR-based borrowings, respectively.
If any registrant loses its investment grade rating, the maximum adders for prime rate borrowings and LIBOR-basedSOFR-based rate borrowings are 90would be 65 basis points and 165 basis points, respectively. The credit agreements also require the borrower to pay a facility fee based upon the aggregate commitments. The fee varies depending upon the respective credit ratings of the borrower.
Each revolving creditShort-Term Loan Agreements
On March 23, 2017, Exelon Corporate entered into a term loan agreement for $500 million. The loan agreement was renewed on March 14, 2022 and will expire on March 16, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65% and all indebtedness thereunder is unsecured. The loan agreement is reflected in Exelon's Consolidated Balance Sheets within Short-term borrowings.
On March 31, 2021, Exelon Generation, ComEd, PECO, BGE, Pepco, DPLCorporate entered into a 364-day term loan agreement for $150 million with a variable interest rate of LIBOR plus 0.65% and ACE requiresan expiration date of March 30, 2022. Exelon Corporate repaid the affected borrowerterm loan on March 30, 2022.
In connection with the separation, on January 24, 2022, Exelon Corporate entered into a 364-day term loan agreement for $1.15 billion. The loan agreement had an expiration date of January 23, 2023. Pursuant to maintainthe loan agreement, loans made thereunder bore interest at a minimum cash from operationsvariable rate equal to interest expense ratio forSOFR plus 0.75% until July 23, 2022 and a rate of SOFR plus 0.975% thereafter. All indebtedness pursuant to the twelve-month period endedloan agreement was unsecured. On August 11, 2022, Exelon Corporate made a partial repayment of $575 million on the last dayterm loan. On October 11, 2022, the remaining $575 million outstanding balance was repaid in conjunction with the $500 million 18-month term loan that was entered into on October 7, 2022.
On October 4, 2022, ComEd entered into a 364-day term loan agreement for $150 million with a variable rate equal to SOFR plus 0.75% and an expiration date of any quarter.October 3, 2023. The following table summarizes the minimum thresholdsproceeds from this loan were used to repay outstanding commercial paper obligations. The loan agreement is reflected in the credit agreements for the year ended December 31, 2017:

Combined Notes toExelon's and ComEd's Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

ExelonGenerationComEdPECOBGEPepcoDPLACE
Credit agreement threshold2.50 to 13.00 to 12.00 to 12.00 to 12.00 to 12.00 to 12.00 to 12.00 to 1
At December 31, 2017, the interest coverage ratios at the Registrants were as follows:
 Exelon Generation ComEd PECO BGE Pepco DPL ACE
Interest coverage ratio6.34 9.02 11.68 7.99 10.50 6.35 8.69 5.57
An event of default under Exelon, Generation, ComEd, PECO or BGE's indebtedness will not constitute an event of default under anyBalance Sheets within Short-term borrowings. The balance of the others’ credit facilities, exceptloan was repaid on January 13, 2023 in conjunction with the $400 million and $575 million First Mortgage Bond agreements that a bankruptcy or other event of default in the payment of principal, premium or indebtedness in principal amount in excess of $100 million in the aggregate by Generation will constitute an event of default under the Exelon Corporate credit facility. An event of default under Pepco, DPL or ACE's indebtedness will not constitute an event of default with respect to the other PHI Utilities under the PHI Utilities' combined credit facility.were entered into on January 3, 2023.
The absence of a material adverse change in Exelon's or PHI’s business, property, results of operations or financial condition is not a condition to the availability of credit under any of the borrowers' credit agreement. None of the credit agreements include any rating triggers.
Variable Rate Demand BondsComponents of Income Tax Expense or Benefit
DPL has outstanding obligations in respect of Variable Rate Demand Bonds (VRDB). VRDBs are subject to repayment on the demandIncome tax expense (benefit) from continuing operations is comprised of the holders and, for this reason, are accounted for as short-term debt in accordance with GAAP. However, bonds submitted for purchase are remarketed by a remarketing agent on a best efforts basis. PHI expects that any bonds submitted for purchase will be remarketed successfullyfollowing components:
For the Year Ended December 31, 2022
 ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:
Federal
Current$(24)$29 $13 $(1)$16 $$(2)$
Deferred106 117 18 (3)(23)(2)(15)
Investment tax credit amortization(3)(1)— — (1)— — — 
State
Current(13)(6)(4)— — — — 
Deferred283 125 52 12 15 (16)14 12 
Total$349 $264 $79 $$$(9)$14 $
For the Year Ended December 31, 2021
 ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:
Federal
Current$(152)$(30)$$(18)$18 $22 $$
Deferred89 113 20 34 (52)(17)(14)(26)
Investment tax credit amortization(2)(1)— — (1)— — — 
State
Current(46)(41)— — — — 
Deferred149 131 (9)(51)77 53 12 
Total$38 $172 $12 $(35)$42 $15 $42 $(13)
For the Year Ended December 31, 2020
 ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:
Federal
Current$(180)$(24)$(7)$$25 $40 $(13)$(4)
Deferred10 112 10 (129)(62)(20)(43)
Investment tax credit amortization(3)(2)— — (1)— — — 
State
Current(37)(27)— — (5)— — — 
Deferred203 118 (24)27 33 15 
Total$(7)$177 $(30)$41 $(77)$(7)$(25)$(41)
Rate Reconciliation
The effective income tax rate from continuing operations varies from the U.S. federal statutory rate principally due to the creditworthinessfollowing:
211




Table of the issuer and, as applicable, the credit support, and because the remarketing resets the interest rate to the then-current market rate. The bonds may be converted to a fixed-rate, fixed-term option to establish a maturity which corresponds to the date of final maturity of the bonds. On this basis, PHI views VRDBs as a source of long-term financing. As of December 31, 2017 and December 31, 2016, $79 million and $105 million, respectively, in variable rate demand bonds issued by DPL were outstanding and are included in the Long-term debt due within one year on Exelon's, PHI's and DPL's Consolidated Balance Sheet.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
Long-Term Debt
For the Year Ended December 31, 2022(a)
ExelonComEd
PECO(b)
BGE(b)
PHI(b)
Pepco(b)
DPL(b)
ACE(b)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of Federal income tax benefit(c)
8.8 8.0 5.8 2.6 2.1 (4.1)6.5 6.9 
Plant basis differences(4.1)(0.6)(11.9)(1.0)(1.7)(2.7)(0.7)(0.7)
Excess deferred tax amortization(11.8)(5.6)(3.0)(19.8)(19.5)(16.8)(18.4)(24.5)
Amortization of investment tax credit, including deferred taxes on basis differences(0.1)(0.1)— (0.1)(0.1)— (0.2)(0.2)
Tax credits(d)
0.1 (0.3)— (0.7)(0.7)(0.7)(0.6)(0.5)
Other(e)
0.6 — 0.2 0.1 0.4 0.3 0.1 — 
Effective income tax rate14.5 %22.4 %12.1 %2.1 %1.5 %(3.0)%7.7 %2.0 %
The following tables present
For the Year Ended December 31, 2021(a)
ExelonComEd
PECO(f)
BGE(f)
PHI
Pepco(f)
DPL(f)
ACE(f)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of federal income tax benefit5.0 7.8 (1.4)(10.8)10.1 2.7 25.0 7.4 
Plant basis differences(5.4)(0.8)(13.6)(1.7)(1.1)(1.6)(0.8)(0.2)
Excess deferred tax amortization(17.2)(7.6)(3.8)(16.3)(22.4)(16.4)(20.0)(37.1)
Amortization of investment tax credit, including deferred taxes on basis differences(0.1)(0.1)— (0.1)(0.1)— (0.2)(0.2)
Tax credits(0.7)(0.5)— (0.9)(0.5)(0.5)(0.4)(0.5)
Other(0.3)(1.0)0.1 (0.6)— (0.4)0.1 (0.2)
Effective income tax rate2.3 %18.8 %2.3 %(9.4)%7.0 %4.8 %24.7 %(9.8)%
For the Year Ended December 31, 2020(a)
Exelon
ComEd(g)
PECO(g)
BGE(h)
PHI(h)
Pepco(h)
DPL(h)
ACE(h)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of federal income tax benefit11.9 11.6 (4.5)5.5 5.1 4.5 6.6 7.0 
Plant basis differences(8.6)(0.6)(18.7)(1.5)(1.6)(1.7)(0.4)(3.0)
Excess deferred tax amortization(29.1)(11.2)(4.6)(13.9)(42.0)(25.4)(51.7)(82.1)
Amortization of investment tax credit, including deferred taxes on basis differences(0.3)(0.3)— (0.1)(0.2)(0.1)(0.3)(0.5)
Tax credits(0.5)(0.3)— (0.4)(0.3)(0.3)(0.3)(0.5)
Deferred Prosecution Agreement payments3.8 6.8 — — — — — — 
Other1.2 1.8 (0.4)(0.1)(0.4)(0.7)0.1 0.4 
Effective income tax rate(0.6)%28.8 %(7.2)%10.5 %(18.4)%(2.7)%(25.0)%(57.7)%
__________
(a)Positive percentages represent income tax expense. Negative percentages represent income tax benefit.
(b)For PECO, the outstanding long-term debt atlower effective tax rate is primarily related to plant basis differences attributable to tax repair deductions partially offset by higher state income taxes, net of federal income tax benefit, related to a one-time expense of $38 million attributable to the Registrants aschange in the Pennsylvania corporate income tax rate. For BGE, PHI, Pepco, DPL, and ACE, the lower effective tax rate is primarily related to the acceleration of December 31, 2017certain income tax benefits due to distribution and 2016:
Exelontransmission rate case settlements.
212




     
Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
Rate stabilization bonds

 5.82% 2017 $
 $41
First mortgage bonds(a)
1.70%-7.90% 2018 - 2047 15,197
 14,123
Senior unsecured notes2.45%-7.60% 2019 - 2046 11,285
 11,868
Unsecured notes2.40%-6.35% 2021 - 2047 2,600
 2,300
Pollution control notes2.50%-2.70% 2025 - 2036 435
 435
Nuclear fuel procurement contracts3.15%-3.35% 2018 - 2020 82
 105
Notes payable and other(b)(c)
2.61%-8.88% 2018 - 2053 405
 576
Junior subordinated notes
 3.50% 2022 1,150
 1,150
Contract payment - junior subordinated notes  2.50% 2017 
 19
Long-term software licensing agreement  3.95% 2024 79
 103
Unsecured Tax-Exempt Bonds  5.40%
2031 112
 112
Medium-Terms Notes (unsecured)6.81%-7.72%
2018 - 2027 26
 40
Transition bonds5.05%-5.55%
2020 - 2023 90
 124
Nonrecourse debt:         
     Fixed rates2.29%-6.00% 2031 - 2037 1,331
 1,400
     Variable rates3.18%-4.00% 2019 - 2024 865
 915
Total long-term debt      33,657
 33,311
Unamortized debt discount and premium, net      (57) (68)
Unamortized debt issuance costs      (201) (200)
Fair value adjustment      865
 962
Long-term debt due within one year      (2,088) (2,430)
Long-term debt      $32,176
 $31,575
Long-term debt to financing trusts(d)
         
Subordinated debentures to ComEd Financing III  6.35% 2033 $206
 $206
Subordinated debentures to PECO Trust III  7.38% 2028 81
 81
Subordinated debentures to PECO Trust IV  5.75% 2033 103
 103
Subordinated debentures to BGE Capital Trust II  6.20% 2043 
 258
Total long-term debt to financing trusts      390
 648
Unamortized debt issuance costs      (1) (7)
Long-term debt to financing trusts      $389
 $641

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
__________(c)For Exelon, the higher state income taxes, net of federal income tax benefit, is primarily due to the long-term marginal state income tax rate change of $67 million and the recognition of a valuation allowance of $40 million against the net deferred tax asset position for certain standalone state filing jurisdictions, partially offset by a one-time impact associated with a state tax benefit of $43 million and indemnification adjustments pursuant to the Tax Matters Agreement of $11 million as a result of the separation. For PECO, the higher state income taxes, net of federal income tax benefit, related to a one-time expense of $38 million attributable to the change in the Pennsylvania corporate income tax rate.
(a)Substantially all of ComEd’s assets other than expressly excepted property and substantially all of PECO’s, Pepco's, DPL's and ACE's assets are subject to the liens of their respective mortgage indentures.
(b)
Includes capital lease obligations of $53 million and $69 million at December 31, 2017 and 2016, respectively. Lease payments of $18 million, $20 million, $5 million, $1 million, $1 million and $8 million will be made in 2018, 2019, 2020, 2021, 2022 and thereafter, respectively.
(c)Includes financing related to Albany Green Energy, LLC (AGE). During the third quarter of 2017, Generation retired $228 million of its outstanding debt balance. As of December 31, 2016, $198 million was outstanding.
(d)Amounts owed to these financing trusts are recorded as Long-term debt to financing trusts within Exelon’s Consolidated Balance Sheets.
Generation(d)For Exelon, reflects the income tax expense related to the write-off of federal tax credits subject to recapture of $15 million as a result of the separation.
(e)For Exelon, reflects the nondeductible transaction costs of approximately $12 million arising as part of the separation and indemnification adjustments pursuant to the Tax Matters Agreement of $9 million.
(f)For PECO, the lower effective tax rate is primarily related to plant basis differences attributable to tax repair deductions. For BGE, the income tax benefit is primarily due to the Maryland multi-year plan which resulted in the acceleration of certain income tax benefits. For Pepco, the lower effective tax rate is primarily related to the acceleration of certain income tax benefits due to distribution and transmission rate case settlements. For DPL, the higher effective tax rate is primarily related to a state income tax expense, net of federal income tax benefit, due to the recognition of a valuation allowance of approximately $31 million against a deferred tax asset associated with Delaware net operating loss carryforwards as a result of a change in Delaware tax law. For ACE, the income tax benefit is primarily due to a distribution rate case settlement which allows ACE to retain certain tax benefits.
(g)For ComEd, the higher effective tax rate is primarily related to the nondeductible DPA payments. For PECO, the negative effective tax rate is primarily related to an increase in plant basis differences attributable to tax repair deductions related to an increase in storms and qualifying projects in 2021.
(h)For BGE, PHI, Pepco, DPL, and ACE, the income tax benefit is primarily attributable to accelerated amortization of transmission related deferred income tax regulatory liabilities as a result of regulatory settlements. See Note 3 — Regulatory Matters for additional information.
Tax Differences and Carryforwards
The tax effects of temporary differences and carryforwards, which give rise to significant portions of the deferred tax assets (liabilities), as of December 31, 2022 and 2021 are presented below:
As of December 31, 2022
ExelonComEdPECOBGEPHIPepcoDPLACE
Plant basis differences$(12,130)$(4,823)$(2,119)$(1,949)$(3,131)$(1,394)$(906)$(813)
Accrual based contracts10 — — — 10 — — — 
Derivatives and other financial instruments26 23 — — — — — 
Deferred pension and postretirement obligation551 (300)(31)(31)(80)(76)(39)(3)
Deferred debt refinancing costs132 (5)— (2)111 (4)(2)(1)
Regulatory assets and liabilities(1,107)(131)(169)57 (50)43 11 
Tax loss carryforward, net of valuation allowances250 — 33 72 71 20 46 
Tax credit carryforward468 — — — — — — — 
Investment in partnerships(21)— — — — — — — 
Other, net591 223 73 23 182 83 16 28 
Deferred income tax liabilities (net)$(11,230)$(5,013)$(2,213)$(1,830)$(2,885)$(1,381)$(868)$(732)
Unamortized investment tax credits(14)(8)— (2)(4)(1)(1)(2)
Total deferred income tax liabilities (net) and unamortized investment tax credits$(11,244)$(5,021)$(2,213)$(1,832)$(2,889)$(1,382)$(869)$(734)

213




     
Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
Senior unsecured notes2.95%-7.60% 2019 - 2042 $6,019
 $5,971
Pollution control notes2.50%-2.70% 2025 - 2036 435
 435
Nuclear fuel procurement contracts3.15%-3.35% 2018 - 2020 82
 105
Notes payable and other(a)(b)
2.61%-8.88% 2018 - 2019 223
 382
Nonrecourse debt:         
Fixed rates2.29%-6.00% 2031 - 2037 1,331
 1,400
Variable rates3.18%-4.00% 2019 - 2024 865
 915
Total long-term debt      8,955
 9,208
Unamortized debt discount and premium, net      (8) (17)
Unamortized debt issuance costs      (60) (65)
Fair value adjustment      103
 115
Long-term debt due within one year      (346) (1,117)
Long-term debt      $8,644
 $8,124
__________
(a)Includes Generation’s capital lease obligations of $18 million and $22 million at December 31, 2017 and 2016, respectively. Generation will make lease payments of $5 million, $6 million, $5 million, $1 million and $1 million in 2018, 2019, 2020, 2021 and 2022 respectively. The capital lease matures in 2022.
(b)Includes financing related to Albany Green Energy, LLC (AGE). During the third quarter of 2017, Generation retired $228 million of its outstanding debt balance. As of December 31, 2016, $198 million was outstanding.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


ComEd
Note 13 — Income Taxes
     
Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
First mortgage bonds(a)
2.15%-6.45% 2018 - 2047 $7,529
 $6,954
Notes payable and other(b)
6.95%-7.49% 2018 - 2053 147
 147
Total long-term debt      7,676
 7,101
Unamortized debt discount and premium, net      (23) (22)
Unamortized debt issuance costs      (52) (46)
Long-term debt due within one year      (840) (425)
Long-term debt      $6,761
 $6,608
Long-term debt to financing trust(c)
         
Subordinated debentures to ComEd Financing III  6.35% 2033 $206
 $206
Total long-term debt to financing trusts      206
 206
Unamortized debt issuance costs      (1) (1)
Long-term debt to financing trusts      $205
 $205
As of December 31, 2021
ExelonComEdPECOBGEPHIPepcoDPLACE
Plant basis differences$(11,606)$(4,648)$(2,271)$(1,826)$(2,976)$(1,321)$(853)$(777)
Accrual based contracts56 — — — 56 — — — 
Derivatives and other financial instruments63 61 — — — — — 
Deferred pension and postretirement obligation641 (308)(32)(37)(90)(76)(40)(6)
Deferred debt refinancing costs146 (6)— (2)123 (2)(1)(1)
Regulatory assets and liabilities(1,130)(280)92 (53)24 55 31 
Tax loss carryforward, net of valuation allowances242 — 65 68 64 18 42 
Tax credit carryforward584 — — — — — — — 
Investment in partnerships(21)— — — — — — — 
Other, net449 216 97 21 212 99 19 34 
Deferred income tax liabilities (net)$(10,576)$(4,677)$(2,421)$(1,684)$(2,662)$(1,274)$(802)$(677)
Unamortized investment tax credits(15)(8)— (2)(5)(1)(1)(2)
Total deferred income tax liabilities (net) and
unamortized investment tax credits
$(10,591)$(4,685)$(2,421)$(1,686)$(2,667)$(1,275)$(803)$(679)
The following table provides Exelon’s, PECO’s, BGE’s, PHI’s, Pepco’s, DPL’s, and ACE’s carryforwards, of which the state related items are presented on a post-apportioned basis, as well as, any corresponding valuation allowances as of December 31, 2022. ComEd does not have net operating losses or credit carryforwards for the year ended December 31, 2022.
ExelonPECOBGEPHIPepcoDPLACE
Federal
Federal general business credits carryforwards(a)
$468 $— $— $— $— $— $— 
State
State net operating loss carryforwards4,991 970 1,142 1,501 50 768 651 
Deferred taxes on state tax attributes (net of federal taxes)307 37 72 104 52 46 
Valuation allowance on state tax attributes (net of federal taxes)(b)
57 — 33 — 32 — 
Year in which net operating loss or credit carryforwards will begin to expire(c)
2035203220332029N/A20322031
__________
(a)Substantially all of ComEd’s assets, other than expressly excepted property, are subject to the lien of its mortgage indenture.
(b)Includes ComEd’s capital lease obligations of $8 million at both December 31, 2017 and 2016, respectively. Lease payments of less than $1 million annually will be made from 2018 through expiration at 2053.
(c)Amount owed to this financing trust is recorded as Long-term debt to financing trust within ComEd’s Consolidated Balance Sheets.
(a)For Exelon, the federal general business credit carryforward will begin expiring in 2035.
(b)For Exelon, a full valuation allowance has been recorded against certain separate company state net operating loss carryforwards that are expected to expire before realization. For PECO, a valuation allowance has been recorded against certain Pennsylvania net operating losses that are expected to expire before realization. For DPL, a full valuation allowance has been recorded against Delaware net operating losses carryforwards due to a change in Delaware tax law.
(c)A portion of Exelon's, BGE's, Pepco's, and DPL's Maryland state net operating loss carryforward have an indefinite carryforward period.
214




     
Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
First mortgage bonds(a)
1.70%-5.95% 2018 - 2047 $2,925
 $2,600
Total long-term debt      2,925
 2,600
Unamortized debt discount and premium, net      (5) (5)
Unamortized debt issuance costs      (17) (15)
Long-term debt due within one year      (500) 
Long-term debt      $2,403
 $2,580
Long-term debt to financing trusts(b)
         
Subordinated debentures to PECO Trust III  7.38% 2028 $81
 $81
Subordinated debentures to PECO Trust IV  5.75% 2033 103
 103
Long-term debt to financing trusts      $184
 $184
__________
(a)Substantially all of PECO’s assets are subject to the lien of its mortgage indenture.
(b)Amounts owed to this financing trust are recorded as Long-term debt to financing trusts within PECO’s Consolidated Balance Sheets.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


BGE
Note 13 — Income Taxes
     
Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
Rate stabilization bonds

 5.82% 2017 $
 $41
Unsecured notes2.40%-6.35% 2021 - 2047 2,600
 2,300
Total long-term debt      2,600
 2,341
Unamortized debt discount and premium, net      (6) (4)
Unamortized debt issuance costs      (17) (15)
Long-term debt due within one year      
 (41)
Long-term debt      $2,577
 $2,281
Long-term debt to financing trusts(a)
         
Subordinated debentures to BGE Capital Trust II  6.20% 2043 $
 $258
Total long-term debt to financing trusts      
 258
Unamortized debt issuance costs      
 (6)
Long-term debt to financing trusts      $
 $252
Tabular Reconciliation of Unrecognized Tax Benefits
__________The following table presents changes in unrecognized tax benefits, for Exelon, PHI, and ACE. ComEd's, PECO's, BGE's, Pepco's, and DPL's amounts are not material.
Exelon(a)
PHIACE
Balance at January 1, 2020$95 $48 $14 
Change to positions that only affect timing
Increases based on tax positions related to 2020— — 
Increases based on tax positions prior to 202026 — 
Decreases based on tax positions prior to 2020(5)— — 
Balance at December 31, 2020125 52 15 
Change to positions that only affect timing13 
Increases based on tax positions related to 2021— 
Increases based on tax positions prior to 2021— — 
Decreases based on tax positions prior to 2021(3)— — 
Balance at December 31, 2021143 56 16 
Change to positions that only affect timing(1)
Increases based on tax positions related to 2022— 
Increases based on tax positions prior to 2022— — 
Decreases based on tax positions prior to 2022— — — 
Balance at December 31, 2022$148 $59 $17 
______
(a)As of December 31, 2022, Exelon recorded a receivable of $50 million in noncurrent Other assets in the Consolidated Balance Sheet for Constellation’s share of unrecognized tax benefits for periods prior to the separation.
Recognition of unrecognized tax benefits
The following table presents Exelon's unrecognized tax benefits that, if recognized, would decrease the effective tax rate. The Utility Registrants' amounts are not material.
(a)Amounts owed to this financing trust are recorded as Long-term debt to financing trusts within BGE’s Consolidated Balance Sheets. On August 28, 2017, BGE redeemed all of the outstanding shares of BGE Capital Trust II 6.20% Preferred Securities (“Securities”), pursuant to the optional redemption provisions of the Indenture under which the Securities were issued. The redemption price per share was $25.19, which equaled the stated value per share plus accrued and unpaid dividends to, but excluding, the redemption date. No dividends on the Securities redeemed were accrued on or after the redemption date, nor did any interest accrue on amounts held to pay the redemption price.Exelon
PHI
       Successor
     Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
First mortgage bonds(a)
3.05%-7.90% 2018 - 2045 $4,743
 $4,569
Senior unsecured notes


7.45% 2017 - 2032 185
 266
Unsecured Tax-Exempt Bonds  5.40% 2031 112
 112
Medium-Terms Notes (unsecured)6.81%-7.72% 2018 - 2027 26
 40
Transition bonds(b)
5.05%-5.55% 2020 - 2023 90
 124
Notes payable and other (c) 
6.20%-8.88% 2018 - 2022 33
 46
Total long-term debt      5,189

5,157
Unamortized debt discount and premium, net      5
 1
Unamortized debt issuance costs      (6) (2)
Fair value adjustment      686
 742
Long-term debt due within one year      (396) (253)
Long-term debt      $5,478

$5,645
__________
(a)Substantially all of Pepco's, DPL's, and ACE's assets are subject to the lien of its respective mortgage indenture.
(b)Transition bonds are recorded as part of Long-term debt within ACE's Consolidated Balance Sheets.
(c)Includes Pepco's capital lease obligations of $27 million and $39 million at
December 31, 20172022$90 
December 31, 202177 
December 31, 202073 
Reasonably possible the total amount of unrecognized tax benefits could significantly increase or decrease within 12 months after the reporting date
As of December 31, 2022, ACE has approximately $14 million of unrecognized state tax benefits that could significantly decrease within the 12 months after the reporting date based on the outcome of pending court cases involving other taxpayers. The unrecognized tax benefit, if recognized, may be included in future base rates and that portion would have no impact to the effective tax rate.
Total amounts of interest and penalties recognized
The following table represents the net interest and penalties receivable (payable) related to tax positions reflected in Exelon's Consolidated Balance Sheets. The Utility Registrants' amounts are not material.
Net interest and 2016, respectively.penalties receivable as ofExelon
December 31, 2022 (a) (b)
$45 
December 31, 2021 (c)
43 

215




Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
Pepco
     Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
First mortgage bonds(a)
3.05%-7.90% 2022 - 2043 $2,535
 $2,335
Notes payable and other(b)
6.20%-8.88% 2018 - 2022 35
 46
Total long-term debt      2,570

2,381
Unamortized debt discount and premium, net      2
 (2)
Unamortized debt issuance costs      (32) (30)
Long-term debt due within one year      (19) (16)
Long-term debt      $2,521

$2,333
__________
(a)As of December 31, 2022, the interest receivable balance is not expected to be settled in cash within the next twelve months and is therefore classified as a noncurrent receivable.
(b)As of December 31, 2022, Exelon recorded a receivable of $1 million in noncurrent Other assets in the Consolidated Balance Sheet for Constellation's share of net interest for periods prior to the separation.
(c)As of December 31, 2021, the interest receivable balance is not expected to be settled in cash within the next twelve months and is therefore classified as a noncurrent receivable. In December of 2021, Exelon received a refund of approximately $272 million related to an interest netting refund claim.
The Registrants did not record material interest and penalty expense related to tax positions reflected in their Consolidated Balance Sheets. Interest expense and penalty expense are recorded in Interest expense, net and Other, net, respectively, in Other income and deductions in the Registrants' Consolidated Statements of Operations and Comprehensive Income.
Description of tax years open to assessment by major jurisdiction
(a)Major JurisdictionSubstantially all of Pepco's assets are subject to the lien of its respective mortgage indenture.Open Years
Registrants Impacted
(b)
Federal consolidated income tax returns(a)
Includes capital lease obligations2010-2021All Registrants
Delaware separate corporate income tax returnsSame as federalDPL
District of $27 million and $39 million at December 31, 2017 and 2016, respectively. Lease payments of $13 million and $14 million will be made in 2018 and 2019, respectively.Columbia combined corporate income tax returns2019-2021Exelon, PHI, Pepco
Illinois unitary corporate income tax returns2012-2021Exelon, ComEd
Maryland separate company corporate net income tax returnsSame as federalBGE, Pepco, DPL
New Jersey separate corporate income tax returns2017-2018Exelon
New Jersey combined corporate income tax returns2019-2021Exelon
New Jersey separate corporate income tax returns2018-2021ACE
New York combined corporate income tax returns2015-2021Exelon
Pennsylvania separate corporate income tax returns2011-2016Exelon
Pennsylvania separate corporate income tax returns2019-2021Exelon
Pennsylvania separate corporate income tax returns2019-2021PECO
DPL
     Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
First mortgage bonds(a) 
3.50%-4.15% 2023 - 2045 $1,171
 $1,196
Unsecured Tax-Exempt Bonds  5.40% 2024 - 2031 112
 112
Medium-Terms Notes (unsecured)6.81%-7.72% 2018 - 2027 26
 40
Total long-term debt      1,309

1,348
Unamortized debt discount and premium, net      2
 2
Unamortized debt issuance costs      (11) (10)
Long-term debt due within one year      (83) (119)
Long-term debt      $1,217

$1,221
__________
(a)Substantially all of DPL's assets are subject to the lien of its respective mortgage indenture.
(a)Certain registrants are only open to assessment for tax years since joining the Exelon federal consolidated group; BGE beginning in 2012 and PHI, Pepco, DPL, and ACE beginning in 2016.
Other Tax Matters
Separation (Exelon)
In the first quarter of 2022, in connection with the separation, Exelon recorded an income tax expense related to continuing operations of $148 million primarily due to the long-term marginal state income tax rate change of $67 million discussed further below, the recognition of valuation allowances of approximately $40 million against the net deferred tax assets positions for certain standalone state filing jurisdictions, the write-off of federal and state tax credits subject to recapture of $17 million, and nondeductible transaction costs for federal and state taxes of $24 million.
Tax Matters Agreement (Exelon)
In connection with the separation, Exelon entered into a TMA with Constellation. The TMA governs the respective rights, responsibilities, and obligations between Exelon and Constellation after the separation with respect to tax liabilities, refunds and attributes for open tax years that Constellation was part of Exelon’s consolidated group for U.S. federal, state, and local tax purposes.
Indemnification for Taxes. As a former subsidiary of Exelon, Constellation has joint and several liability with Exelon to the IRS and certain state jurisdictions relating to the taxable periods prior to the separation. The TMA specifies that Constellation is liable for their share of taxes required to be paid by Exelon with respect to taxable periods prior to the separation to the extent Constellation would have been responsible for such taxes under the existing Exelon tax sharing agreement. As a result, as of March 31, 2022, Exelon recorded a receivable of $55 million in Current other assets in the Consolidated Balance Sheet for Constellation’s share of taxes for periods
216




     Maturity
Date
 December 31,
 Rates 2017 2016
Long-term debt         
First mortgage bonds(a) 
3.38%-7.75% 2018 - 2036 $1,037
 $1,038
Transition bonds(b)
5.05%-5.55% 2020 - 2023 90
 124
Total long-term debt      1,127

1,162
Unamortized debt discount and premium, net      (1) (1)
Unamortized debt issuance costs      (5) (6)
Long-term debt due within one year      (281) (35)
Long-term debt      $840

$1,120
__________
(a)Substantially all of ACE's assets are subject to the lien of its respective mortgage indenture.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


(b)Maturities of ACE's Transition Bonds outstanding at December 31, 2017 are $31 million in 2018, $18 million in 2019, $20 million in 2020 and $21 million in 2021.
Long-term debt maturities at Exelon, Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE in the periods 2018 through 2022 and thereafter are as follows:
Note 13 — Income Taxes
YearExelon Generation ComEd PECO BGE PHI Pepco DPL ACE
2018$2,075
 $346
 $840
 $500
 $
 $383
 $19
 $83
 $281
2019959
 615
 300
 
 
 44
 14
 12
 18
20203,564
 2,144
 500
 
 
 20
 
 
 20
20211,513
 1
 350
 300
 300
 262
 2
 
 260
20223,084
 1,024
 
 350
 250
 310
 310
 
 
Thereafter22,852
(a)  
4,825
 5,892
(b) 
1,959
(c) 
2,050
 4,170
 2,225
 1,214
 548
Total$34,047
 $8,955
 $7,882
 $3,109

$2,600

$5,189

$2,570

$1,309

$1,127
__________
(a)Includes $390 million dueprior to ComEd and PECO financing trusts.
(b)Includes $206 million due to ComEd financing trust.
(c)Includes $184 million due to PECO financing trusts.
Junior Subordinated Notes
In June 2014, Exelon issued $1.15 billion of junior subordinated notes in the form of 23 million equity units at a stated amount of $50.00 per unit. Each equity unit represented an undivided beneficial ownership interest in Exelon’s $1.15 billion of 2.50% junior subordinated notes due in 2024 (“2024 notes”) and a forward equity purchase contract.   As contemplated in the June 2014 equity unit structure, in April 2017, Exelon completed the remarketing of the 2024 notes into $1.15 billion of 3.497% junior subordinated notes due in 2022 (“Remarketing”).  Exelon conducted the Remarketing on behalf of the holders of equity units and did not directly receive any proceeds therefrom. Instead, the former holders of the 2024 notes used debt remarketing proceeds towards settling the forward equity purchase contract with Exelon on June 1, 2017. Exelon issued approximately 33 million shares of common stock from treasury stock and received $1.15 billion upon settlement of the forward equity purchase contract. When reissuing treasury stock Exelon uses the average price paid to repurchase shares to calculate a gain or loss on issuance and records gains or losses directly to retained earnings. A loss on reissuance of treasury shares of $1.05 billion was recorded to retained earnings as of December 31, 2017. See Note 21 — Earnings Per Share for further information on the issuance of common stock.
Nonrecourse Debt
Exelon and Generation have issued nonrecourse debt financing, in which approximately $3 billion of generating assets have been pledged as collateral at December 31, 2017. Borrowings under these agreements are secured by the assets and equity of each respective project. The lenders do not have recourse against Exelon or Generation in the event of a default. If a specific project financing entity does not maintain compliance with its specific nonrecourse debt financing covenants, there could be a requirement to accelerate repayment of the associated debt or other borrowings earlier than the stated maturity dates. In these instances, if such repayment was not satisfied, the lenders or security holders would generally have rights to foreclose against the project-specific assets and related collateral. The potential requirement to satisfy its associated debt or other borrowings earlier than otherwise anticipated could lead to impairments due to a higher likelihood of disposing of the respective project-specific assets significantly before the end of their useful lives.
Denver Airport. In June 2011, Generation entered into a 20-year, $7 million solar loan agreement to finance a solar construction project in Denver, Colorado. The agreement is scheduled to mature on

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

June 30, 2031. The agreement bears interest at a fixed rate of 5.50% annually with interest payable annually.separation. As of December 31, 2017, $62022, Exelon recorded a payable of $18 million was outstanding.in Current other liabilities that is due to Constellation.
CEU Upstream. In July 2011, CEU Holdings, LLC,Tax Refunds. The TMA specifies that Constellation is entitled to their share of any future tax refunds claimed by Exelon with respect to taxable periods prior to the separation to the extent that Constellation would have received such tax refunds under the existing Exelon tax sharing agreement.
Tax Attributes. At the date of separation certain tax attributes, primarily pre-closing tax credit carryforwards, that were generated by Constellation were required by law to be allocated to Exelon. The TMA also provides that Exelon will reimburse Constellation when those allocated tax attribute carryforwards are utilized. As of March 31, 2022, Exelon recorded a wholly owned subsidiarypayable of Generation, entered into a 5-year reserve based lending agreement (RBL) associated with certain Upstream oil$11 million and gas properties. The lenders do not have recourse against Exelon or Generation$484 million in Current other liabilities and Noncurrent other liabilities, respectively, in the event of default pursuant to the RBL. Borrowings under this arrangement are secured by the assets and equity of CEU Holdings.
In December 2016, substantially all of the Upstream natural gas and oil exploration and production assets were sold for $37 million. The proceeds were used to reduce the debt balance by $31 million. The remaining proceeds of $6 million were being held in escrow. In addition, during 2016, $15 million of the debt was repaid using CEU Holding’s cash, resulting in an outstanding debt balance of $22 million at December 31, 2016. During 2017, additional assets were sold for $1 million and the remaining $6 million in escrow was released and applied to the debt balance resulting in an outstanding amount of $15 million at December 31, 2017. Upon final resolution, CEU Holdings will be released of its obligations regardless of the amount of asset sale proceeds received. The ultimate resolution of this matter has no direct effect on any Exelon or Generation credit facilities or other debt of an Exelon entity. At December 31, 2017, the outstanding debt balance of $15 million was classified within Long term debt due within one year on Exelon’s and Generation’s Consolidated Balance Sheets. See Note 4 — Mergers, AcquisitionsSheet for tax credit carryforwards that are expected to be utilized and Dispositions and Note 7 — Impairment of Long-Lived Assets and Intangibles for additional information.
Holyoke Solar Cooperative. In October 2011, Generation entered into a 20-year, $11 million solar loan agreement relatedreimbursed to a solar construction project in Holyoke, Massachusetts. The agreement is scheduled to mature on December 2031. The agreement bears interest at a fixed rate of 5.25% annually with interest payable monthly.Constellation. As of December 31, 2017, $92022, the current and noncurrent payable amounts are $169 million was outstanding.and $362 million, respectively.
Antelope Valley Solar Ranch One.    In December 2011, the DOE Loan Programs Office issued a guarantee for up to $646 million for a nonrecourse loan from the Federal Financing Bank to support the financing of the construction of the Antelope Valley facility. The project became fully operational in the first half of 2014. The loan will mature on January 5, 2037. Interest rates on the loan were fixed upon each advance at a spread of 37.5 basis points above U.S. Treasuries of comparable maturity. The advances were completed as of December 31, 2015 and the outstanding loan balance will bear interest at an average blended interest rate of 2.82%. As of December 31, 2017, $530 million was outstanding. In addition, Generation has issued letters of credit to support its equity investment in the project. As of December 31, 2017, Generation had $105 million in letters of credit outstanding related to the project.
Continental Wind.    In September 2013, Continental Wind, LLC (Continental Wind), an indirect subsidiary of Exelon and Generation, completed the issuance and sale of $613 million senior secured notes. Continental Wind owns and operates a portfolio of wind farms in Idaho, Kansas, Michigan, Oregon, New Mexico and Texas with a total net capacity of 667MW. The net proceeds were distributed to Generation for its general business purposes. The notes are scheduled to mature on February 28, 2033. The notes bear interest at a fixed rate of 6.00% with interest payable semi-annually. As of December 31, 2017, $512 million was outstanding.
In addition, Continental Wind entered into a $131 million letter of credit facility and $10 million working capital revolver facility. Continental Wind has issued letters of credit to satisfy certain of its credit support and security obligations. As of December 31, 2017, the Continental Wind letter of credit facility had $114 million in letters of credit outstanding related to the project.
ExGen Texas Power.    In September 2014, EGTP, an indirect subsidiary of Exelon and Generation, issued $675 million aggregate principal amount of a nonrecourse senior secured term loan. The net proceeds were distributed to Generation for general business purposes. The loan was scheduled to

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

mature on September 18, 2021. In addition to the financing, EGTP entered into various interest rate swaps with an initial notional amount of approximately $505 million at an interest rate of 2.34% to hedge a portion of the interest rate exposure in connection with this financing, as required by the debt covenants.
On May 2, 2017, as a result of the negative impacts of certain market conditions and the seasonality of its cash flows, EGTP entered into a consent agreement with its lenders, which permitted EGTP to draw on its revolving credit facility and initiate an orderly sales process of its assets. On November 7, 2017, the debtors filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Code in the United States Bankruptcy Court for the District of Delaware. As a result, Exelon and Generation deconsolidated the nonrecourse senior secured term loan, the revolving credit facility, and the interest rate swaps from their consolidated financial statements as of December 31, 2017. Due to their nonrecourse nature, these borrowings are secured solely by the assets of EGTP and its subsidiaries.
Renewable Power Generation.    In March 2016, RPG, an indirect subsidiary of Exelon and Generation, issued $150 million aggregate principal amount of a nonrecourse senior secured notes.  The net proceeds were distributed to Generation for paydown of long term debt obligations at Sacramento PV Energy and Constellation Solar Horizons and for general business purposes.  The loan is scheduled to mature on March 31, 2035.  The term loan bears interest at a fixed rate of 4.11% payable semi-annually.  As of December 31, 2017, $127 million was outstanding.
SolGen.    In September 2016, SolGen, LLC (SolGen), an indirect subsidiary of Exelon and Generation, issued $150 million aggregate principal amount of a nonrecourse senior secured notes.  The net proceeds were distributed to Generation for general business purposes.  The loan is scheduled to mature on September 30, 2036.  The term loan bears interest at a fixed rate of 3.93% payable semi-annually.  As of December 31, 2017, $147 million was outstanding.
ExGen Renewables IV.    In November 2017, EGR IV, an indirect subsidiary of Exelon and Generation, entered into an $850 million nonrecourse senior secured term loan credit facility agreement. The net proceeds of $785 million, after the initial funding of $50 million for debt service and liquidity reserves as well as deductions for original discount and estimated costs, fees and expenses incurred in connection with the execution and delivery of the credit facility agreement, were distributed to Generation for general corporate purposes. The $50 million of debt service and liquidity reserves was treated as restricted cash on Exelon’s and Generation’s Consolidated Balance Sheets and Consolidated Statements of Cash Flows. The loan is scheduled to mature on November 28, 2024. The term loan bears interest at a variable rate equal to LIBOR + 3%, subject to a 1% LIBOR floor with interest payable quarterly. As of December 31, 2017, $850 million was outstanding. In addition to the financing, EGR IV entered into interest rate swaps with an initial notional amount of $636 million at an interest rate of 2.32% to manage a portion of the interest rate exposure in connection with the financing.
14.Long-Term Marginal State Income TaxesTax Rate (All Registrants)
Corporate Tax Reform (All Registrants)
On December 22, 2017, President Trump signed the TCJA into law. The TCJA makes many significant changes to the Internal Revenue Code, including, but not limited to, (1) reducing the U.S. federal corporate tax rate from 35% to 21%; (2) creating a 30% limitation on deductible interest expense (not applicable to regulated utilities); (3) allowing 100% expensing for the cost of qualified property (not applicable to regulated utilities); (4) eliminating the domestic production activities deduction; (5) eliminating the corporate alternative minimum taxQuarterly, Exelon reviews and changing how existing alternative minimum tax credits can be realized; and (6) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017. The most significant change that impacts the Registrants is the reduction of the corporate federalupdates its marginal state income tax rate from 35% to 21% beginning January 1, 2018.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollarsrates for material changes in millions, except per share data unless otherwise noted)

Pursuant to the enactment of the TCJA, thestate tax laws and state apportionment. The Registrants remeasuredremeasure their existing deferred income tax balances as of December 31, 2017 to reflect the decreasechanges in the corporate income tax rate from 35% to 21%,marginal rates, which resultedresults in either an increase or a material decrease to their net deferred income tax liability balances as shown in the table below. Generation recorded a corresponding net decrease to income tax expense, while thebalances. Utility Registrants recordedrecord corresponding regulatory liabilities or assets to the extent such amounts are probable of settlement or recovery through customer rates and an adjustment to income tax expense for all other amounts. The amount and timingIn the first quarter of potential settlements of the established net regulatory liabilities will be determined by the Utility Registrants’ respective rate regulators, subject to certain IRS “normalization” rules. See Note 3 — Regulatory Matters for further information.
The Registrants have completed their assessment of the majority of the applicable provisions in the TCJA and have recorded the associated impacts as of December 31, 2017. As discussed further below, under SAB 118 issued by the SEC in December 2017, the Registrants have recorded provisional2022, Exelon updated its marginal state income tax amounts as of December 31, 2017rates for changes pursuantin state apportionment due to the TCJA related to depreciation forseparation, which the impacts could not be finalized upon issuanceresulted in an increase of the Registrants’ financial statements, but for which reasonable estimates could be determined. 
For property acquired and placed-in-service after September 27, 2017, the TCJA repeals 50% bonus depreciation for all taxpayers and in addition provides for 100% expensing for taxpayers other than regulated utilities. As a result, Generation will be required to evaluate the contractual terms of its fourth quarter 2017 capital additions and determine if they qualify for 100% expensing under the TCJA as compared to 50% bonus depreciation under prior tax law. Similarly, the Utility Registrants will be required to evaluate the contractual terms of their fourth quarter 2017 capital additions to determine whether they still qualify for the prior tax law’s 50% bonus depreciation as compared to no bonus depreciation pursuant$67 million to the TCJA. As of December 31, 2017, the Registrants have not completed this analysis but were able to record a reasonable estimate of the effects of these changes based on capital costs incurreddeferred tax liability at each of the Registrants prior to and after the beginning of the fourth quarter of 2017.
At Generation, any required changes to the provisional estimates during the measurement period related to the above item would result in an adjustment to current income tax expense at 35%Exelon, and a corresponding adjustment to deferred income tax expense, at 21%net of federal taxes. The impacts to ComEd, BGE, PHI, Pepco, DPL, and such changes couldACE for the years ended December 31, 2022, 2021, and 2020 were not material.
December 31, 2022Exelon
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$67 
December 31, 2021
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$27 
December 31, 2020
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$66 
Pennsylvania Corporate Income Tax Rate Change (Exelon and PECO)
On July 8, 2022, Pennsylvania enacted House Bill 1342, which will permanently reduce the corporate income tax rate from 9.99% to 4.99%. The tax rate will be materialreduced to Generation’s future results8.99% for the 2023 tax year. Starting with the 2024 tax year, the rate is reduced by 0.50% annually until it reaches 4.99% in 2031. As a result of operations. At the Utility Registrants, any required changesrate change, in the third quarter of 2022, Exelon and PECO recorded a one-time decrease to deferred income taxes of $390 million with a corresponding decrease to the provisional estimates would result indeferred income taxes regulatory asset of $428 million for the recording of regulatory assets or liabilitiesamounts that are expected to the extent such amounts are probable of settlement or recoverybe settled through future customer rates and a net changean increase to income tax expense of $38 million (net of federal taxes). The tax rate decrease is not expected to have a material ongoing impact to Exelon’s and PECO’s financial statements. PECO did not update its marginal state income tax rates for any other amounts.the years ended December 31, 2021 and 2020.
Allocation of Tax Benefits (All Registrants)
The Utility Registrants expectare party to an agreement with Exelon and other subsidiaries of Exelon that provides for the allocation of consolidated tax liabilities and benefits (Tax Sharing Agreement). The Tax Sharing Agreement provides that each party is allocated an amount of tax similar to that which would be owed had the party been separately subject to tax. In addition, any final adjustmentsnet federal and state benefits attributable to Exelon are reallocated to the provisional amounts to be recorded by the third quarter of 2018, which could be materialother Registrants. That allocation is treated as a contribution from Exelon to the Registrants’ future resultsparty receiving the benefit.
The following table presents the allocation of operations or financial positions. The accountingtax benefits from Exelon under the Tax Sharing Agreement, for all other applicable provisions of the TCJA is considered complete based on our current interpretation of the provisions of the TCJA as enacted as ofyear ended December 31, 2017.2022, 2021, and 2020.
While the Registrants have recorded the impacts
217




Table of the TCJA based on their interpretation of the provisions as enacted, it is expected that technical corrections or other forms of guidance will be issued during 2018, which could result in material changes to previously finalized provisions. At this time, most states have not provided guidance regarding TCJA impacts and may issue guidance in 2018 which may impact estimates.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


The one-time impacts recorded by the Registrants to remeasure their deferred income tax balances at the 21% corporate federal income tax rate as of December 31, 2017 are presented below:
Note 13 — Income Taxes
           Successor      
 
Exelon(b)
 Generation ComEd PECO BGE PHI Pepco DPL ACE
Net Decrease to Deferred Income Tax Liability Balances

$8,624 $1,895 $2,819 $1,407 $1,120 $1,944 $968 $540 $456
ComEdPECOBGEPHIPepcoDPLACE
December 31, 2022(a)
$$47 $— $28 $23 $$
December 31, 2021(b)
19 — 17 16 — — 
December 31, 2020(c)
14 17 — 17 
__________
(a)BGE did not record an allocation of federal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss.
(b)BGE, DPL, and ACE did not record an allocation of federal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss.
(c)BGE did not record an allocation of federal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss.

14. Retirement Benefits (All Registrants)
           Successor      
 Exelon Generation ComEd 
PECO(c)
 BGE PHI Pepco DPL ACE
Net Regulatory Liability Recorded(a)
$7,315 N/A $2,818 $1,394 $1,124 $1,979 $976 $545 $458
Exelon sponsors defined benefit pension plans and OPEB plans for essentially all current employees. Substantially all non-union employees and electing union employees hired on or after January 1, 2001 participate in cash balance pension plans. Effective January 1, 2009, substantially all newly-hired union-represented employees participate in cash balance pension plans. Effective February 1, 2018 for most newly-hired BSC non-represented, non-craft, employees, January 1, 2021 for most newly-hired utility management employees, and for certain newly-hired union employees pursuant to their collective bargaining agreements, these newly-hired employees are not eligible for pension benefits, and will instead be eligible to receive an enhanced non-discretionary employer contribution in an Exelon defined contribution savings plan. Effective January 1, 2018, most newly-hired non-represented, non-craft, employees are not eligible for OPEB benefits and employees represented by Local 614 are not eligible for retiree health care benefits. Effective January 1, 2021, most non-represented, non-craft, employees who are under the age of 40 are not eligible for retiree health care benefits. Effective January 1, 2022, management employees retiring on or after that date are no longer eligible for retiree life insurance benefits.
           Successor      
 
Exelon(b)
 Generation ComEd PECO BGE PHI Pepco DPL ACE
Net Deferred Income Tax Benefit/(Expense) Recorded$1,309 $1,895 $1 $13 $(4) $(35) $(8) $(5) $(2)
__________
(a)Reflects the net regulatory liabilities recorded on a pre-tax basis before taking into consideration the income tax benefits associatedEffective February 1, 2022, in connection with the ultimate settlement with customers.
(b)Amounts do not sum across due to deferred tax adjustments recorded at the Exelon Corporation parent company, primarily related to certain employee compensation plans.
(c)Given the regulatory treatment of income tax benefits related to electric and gas distribution repairs, PECO remains in an overall net regulatory asset position as of December 31, 2017 after recording the impacts related to the TCJA. Refer to Note 3 - Regulatory Matters for additional information.
The net regulatory liabilities above include (1) amounts subject to IRS “normalization” rules that are required to be passed back to customers generally over the remaining useful lifeseparation, pension and OPEB obligations and assets for current and former employees of the underlyingConstellation business and certain other former employees of Exelon and its subsidiaries transferred to pension and OPEB plans and trusts maintained by Constellation or its subsidiaries. The Exelon New England Union Employees Pension Plan and Constellation Mystic Power, LLC Union Employees Pension Plan Including Plan A and Plan B were transferred. The following OPEB plans were also transferred: Constellation Mystic Power, LLC Post-Employment Medical Savings Account Plan; Exelon New England Union Post-Employment Medical Savings Account Plan; and the Nine Mile Point Nuclear Station, LLC Medical Care and Prescription Drug Plan for Retired Employees.
As a result of the separation, Exelon restructured certain of its qualified pension plans. Pension obligations and assets giving risefor current and former employees continuing with Exelon and who were participants in the Exelon Employee Pension Plan for Clinton, TMI, and Oyster Creek, Pension Plan of Constellation Energy Nuclear Group, LLC, and Nine Mile Point Pension Plan were merged into the Pension Plan of Constellation Energy Group, Inc, which was subsequently renamed, Exelon Pension Plan (EPP). Exelon employees who participated in these plans prior to the associated deferred income taxes, and (2) amounts for which the timing of settlement with customers is subject to determinations by the rate regulators. The table below sets forth the Registrants’ estimated categorization of their net regulatory liabilities as of December 31, 2017. The amountsseparation now participate in the table below are shown on an after-tax basis reflecting future net cash outflows after taking into considerationEPP. The merging of the income taxplans did not change the benefits associated with the ultimate settlement with customers.
         Successor      
 Exelon ComEd 
PECO(a)
 BGE PHI PEPCO DPL ACE
Subject to IRS Normalization Rules$3,040 $1,400 $533 $459 $648 $299 $195 $153
Subject to Rate Regulator Determination1,694 573 43 324 754 391 194 170
Net Regulatory Liabilities$4,734 $1,973 $576 $783 $1,402 $690 $389 $323
_________
(a)Given the regulatory treatment of income tax benefits related to electric and gas distribution repairs, PECO remains in an overall net regulatory asset position as of December 31, 2017 after recording the impacts related to the TCJA. As a result, the amount of customer benefits resulting from the TCJA subject to the discretion of PECO's rate regulators are lower relative to the other Utility Registrants. Refer to Note 3 - Regulatory Matters for additional information.
The net regulatory liability amounts subjectoffered to the IRS normalization rules generally relate to property, plantplan participants and, equipment with remaining useful lives ranging from 30 to 40 years across the Utility Registrants.  For the other amounts, rate regulators could require the passing backthus, had no impact on Exelon's pension obligations.
218




Table of amounts to customers over shorter time frames.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
The tables below show the pension and OPEB plans in which employees of each operating company participated as of December 31, 2022:
Operating Company(e)
Name of Plan:ComEdPECOBGEPHIPepcoDPLACE
Qualified Pension Plans:
Exelon Corporation Retirement Program(a)
XXXXXXX
Exelon Corporation Pension Plan for Bargaining Unit Employees(a)
X
Exelon Pension Plan(b)
XXXXXXX
Pepco Holdings LLC Retirement Plan(d)
XXXXXXX
Non-Qualified Pension Plans:
Exelon Corporation Supplemental Pension Benefit Plan and 2000 Excess Benefit Plan(a)
XXX
Exelon Corporation Supplemental Management Retirement Plan(a)
XXXXX
Constellation Energy Group, Inc. Senior Executive Supplemental Plan(b)
XX
Constellation Energy Group, Inc. Supplemental Pension Plan(b)
XX
Constellation Energy Group, Inc. Benefits Restoration Plan(b)
XXX
Baltimore Gas & Electric Company Executive Benefit Plan(b)
X
Baltimore Gas & Electric Company Manager Benefit Plan(b)
XX
Pepco Holdings LLC 2011 Supplemental Executive Retirement Plan(d)
XXXX
Conectiv Supplemental Executive Retirement Plan(d)
XXX
Pepco Holdings LLC Combined Executive Retirement Plan(d)
XX
Operating Company(e)
Name of Plan:ComEdPECOBGEPHIPepcoDPLACE
OPEB Plans:
PECO Energy Company Retiree Medical Plan(a)
XXXXXXX
Exelon Corporation Health Care Program(a)
XXXXXXX
Exelon Corporation Employees’ Life Insurance Plan(a)
XXX
Exelon Corporation Health Reimbursement Arrangement Plan(a)
XXX
BGE Retiree Medical Plan(b)
XXXXXX
BGE Retiree Dental Plan(b)
X
Exelon Retiree Medical Plan of Constellation Energy Nuclear Group, LLC(c)
XXX
Exelon Retiree Dental Plan of Constellation Energy Nuclear Group, LLC(c)
XXX
Pepco Holdings LLC Welfare Plan for Retirees(d)
XXXXXXX
__________
(a)These plans are collectively referred to as the legacy Exelon plans.
(b)These plans are collectively referred to as the legacy Constellation Energy Group (CEG) Plans.
(c)These plans are collectively referred to as the legacy CENG plans.
(d)These plans are collectively referred to as the legacy PHI plans.
(e)Employees generally remain in their legacy benefit plans when transferring between operating companies.

219




Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 14 — Retirement Benefits
Exelon’s traditional and cash balance pension plans are intended to be tax-qualified defined benefit plans. Exelon has elected that the trusts underlying these plans be treated as qualified trusts under the IRC. If certain conditions are met, Exelon can deduct payments made to the qualified trusts, subject to certain IRC limitations.
Benefit Obligations, Plan Assets, and Funded Status
As of February 1, 2022, in connection with the separation, Exelon's pension and OPEB plans were remeasured. The remeasurement and separation resulted in a decrease to the pension obligation, net of plan assets, of $921 million and a decrease to the OPEB obligation of $893 million. Additionally, accumulated other comprehensive loss, decreased by $1,994 million (after-tax) and regulatory assets and liabilities increased by $14 million and $5 million respectively. Key assumptions were held consistent with the year end December 31, 2021 assumptions with the exception of the discount rate.
During the first quarter of 2022, Exelon received an updated valuation of its pension and OPEB to reflect actual census data as of February 1, 2022. This valuation resulted in a decrease to the pension obligations of $24 million and an increase to the OPEB obligations of $5 million. Additionally, accumulated other comprehensive loss increased by $5 million (after-tax) and regulatory assets and liabilities decreased by $30 million and $3 million, respectively.
The following tables provide a rollforward of the changes in the benefit obligations and plan assets of Exelon for the most recent two years for all plans combined:
Pension BenefitsOPEB
2022202120222021
Change in benefit obligation:
Net benefit obligation as of the beginning of year$14,236 $14,861 $2,502 $2,661 
Service cost236 294 41 51 
Interest cost439 406 76 69 
Plan participants’ contributions— — 26 32 
Actuarial (gain) loss(a)
(3,379)(442)(604)(116)
Settlements— (23)— (5)
Gross benefits paid(855)(860)(157)(190)
Net benefit obligation as of the end of year$10,677 $14,236 $1,884 $2,502 
 Pension BenefitsOPEB
2022202120222021
Change in plan assets:
Fair value of net plan assets as of the beginning of year$12,165 $11,883 $1,665 $1,635 
Actual return on plan assets(2,359)822 (225)130 
Employer contributions570 343 42 63 
Plan participants’ contributions— — 26 32 
Gross benefits paid(855)(860)(157)(190)
Settlements— (23)— (5)
Fair value of net plan assets as of the end of year$9,521 $12,165 $1,351 $1,665 
__________
(a)The pension and OPEB gains in 2022 and 2021 primarily reflect an increase in the discount rate.



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(Dollars in millions, except per share data unless otherwise noted)

Note 14 — Retirement Benefits
Exelon presents its benefit obligations and plan assets net on its Consolidated Balance Sheets within the following line items:
 Pension BenefitsOPEB
2022202120222021
Other current liabilities$47 $20 $26 $26 
Pension obligations1,109 2,051 — — 
Non-pension postretirement benefit obligations— — 507 811 
Unfunded status (net benefit obligation less plan assets)$1,156 $2,071 $533 $837 
The following table provides the ABO and fair value of plan assets for all pension plans with an ABO in excess of plan assets. Information for pension and OPEB plans with projected benefit obligations (PBO) and accumulated postretirement benefit obligation (APBO), respectively, in excess of plan assets has been disclosed in the Obligations and Plan Assets table above as all pension and OPEB plans are underfunded.
Exelon
ABO in Excess of Plan Assets20222021
ABO$10,108 $13,497 
Fair value of net plan assets9,427 12,165 
Components of Net Periodic Benefit Costs
The majority of the 2022 pension benefit cost for the Exelon-sponsored plans is calculated using an expected long-term rate of return on plan assets of 7.00% and a discount rate of 3.24%. The majority of the 2022 OPEB cost is calculated using an expected long-term rate of return on plan assets of 6.44% for funded plans and a discount rate of 3.20%.
A portion of the net periodic benefit cost for all plans is capitalized in the Consolidated Balance Sheets. The following table presents the components of Exelon’s net periodic benefit costs, prior to capitalization, for the years ended December 31, 2022, 2021, and 2020.
Pension BenefitsOPEB
202220212020202220212020
Components of net periodic benefit cost:
Service cost$236 $294 $251 $41 $51 $56 
Interest cost439 406 476 76 69 93 
Expected return on assets(822)(843)(796)(99)(99)(101)
Amortization of:
Prior service cost (credit)(19)(25)(76)
Actuarial loss295 399 349 12 27 34 
Curtailment benefits— — — — — (1)
Settlement and other charges— — 
Net periodic benefit cost$150 $265 $289 $11 $24 $




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Note 14 — Retirement Benefits
Cost Allocation to Exelon Subsidiaries
All Registrants account for their participation in Exelon’s pension and OPEB plans by applying multi-employer accounting. Exelon allocates costs related to its pension and OPEB plans to its subsidiaries based on both active and retired employee participation in each plan.
The amounts below represent the Registrants' allocated pension and OPEB costs. For Exelon, the service cost component is included in Operating and maintenance expense and Property, plant, and equipment, net while the non-service cost components are included in Other, net and Regulatory assets. For the Utility Registrants, the service cost and non-service cost components are included in Operating and maintenance expense and Property, plant, and equipment, net in their consolidated financial statements.
For the Years Ended December 31,ExelonComEdPECOBGEPHIPepcoDPLACE
2022$161 $60 $(9)$44 $53 $$$12 
2021288 129 64 49 11 
2020296 114 64 70 15 14 
Components of AOCI and Regulatory Assets
Exelon recognizes the overfunded or underfunded status of defined benefit pension and OPEB plans as an asset or liability on its Consolidated Balance Sheets, with offsetting entries to AOCI and regulatory assets (liabilities). A portion of current year actuarial (gains) losses and prior service costs (credits) is capitalized in Exelon’s Consolidated Balance Sheets to reflect the expected regulatory recovery of these amounts, which would otherwise be recorded to AOCI. The following tables provide the components of AOCI and regulatory assets (liabilities) for Exelon for the years ended December 31, 2022, 2021, and 2020 for all plans combined. The tables include amounts related to Generation prior to the separation.
 Pension BenefitsOPEB
202220212020202220212020
Changes in plan assets and benefit obligations recognized in AOCI and regulatory assets (liabilities):
Current year actuarial (gain) loss$(226)$(700)$941 $(271)$(270)$22 
Amortization of actuarial loss(295)(598)(512)(12)(37)(49)
Separation of Constellation(2,631)— — (43)— — 
Current year prior service cost (credit)— — — — — (111)
Amortization of prior service (cost) credit(2)(3)(4)19 34 124 
Curtailments— — — — — 
Settlements— (27)(14)— (1)(1)
Total recognized in AOCI and regulatory assets (liabilities)$(3,154)$(1,328)$411 $(307)$(274)$(14)
Total recognized in AOCI$(2,719)$(747)$271 $(74)$(130)$
Total recognized in regulatory assets (liabilities)$(435)$(581)$140 $(233)$(144)$(20)
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Note 14 — Retirement Benefits
The following table provides the components of gross accumulated other comprehensive loss and regulatory assets (liabilities) for Exelon that have not been recognized as components of periodic benefit cost as of December 31, 2022 and 2021, respectively, for all plans combined:
 Pension BenefitsOPEB
2022202120222021
Prior service cost (credit)$19 $32 $(55)$(111)
Actuarial loss (gain)3,611 6,752 (133)230 
Total$3,630 $6,784 $(188)$119 
Total included in AOCI$873 $3,592 $(21)$53 
Total included in regulatory assets (liabilities)$2,757 $3,192 $(167)$66 
Average Remaining Service Period
For pension benefits, Exelon amortizes its unrecognized prior service costs (credits) and certain actuarial (gains) losses, as applicable, based on participants’ average remaining service periods.
For OPEB, Exelon amortizes its unrecognized prior service costs (credits) over participants’ average remaining service period to benefit eligibility age and amortizes certain actuarial (gains) losses over participants’ average remaining service period to expected retirement. The resulting average remaining service periods for pension and OPEB were as follows:
202220212020
Pension plans12.5 12.4 12.3 
OPEB plans:
Benefit Eligibility Age7.9 7.6 9.0 
Expected Retirement9.1 8.8 10.2 
Assumptions
The measurement of the plan obligations and costs of providing benefits under Exelon’s defined benefit and OPEB plans involves various factors, including the development of valuation assumptions and inputs and accounting policy elections. The measurement of benefit obligations and costs is impacted by several assumptions and inputs, as shown below, among other factors. When developing the required assumptions, Exelon considers historical information as well as future expectations.
Expected Rate of Return. In determining the EROA, Exelon considers historical economic indicators (including inflation and GDP growth) that impact asset returns, as well as expectations regarding future long-term capital market performance, weighted by Exelon’s target asset class allocations.
Mortality. The mortality assumption is composed of a base table that represents the current expectation of life expectancy of the population adjusted by an improvement scale that attempts to anticipate future improvements in life expectancy. For the years endedDecember 31, 2022 and 2021, Exelon’s mortality assumption utilizes the SOA 2019 base table (Pri-2012) and MP-2021 improvement scale adjusted to use Proxy SSA ultimate improvement rates.
For Exelon, the following assumptions were used to determine the benefit obligations for the plans as of December 31, 2022 and 2021. Assumptions used to determine year-end benefit obligations are the assumptions used to estimate the subsequent year’s net periodic benefit costs.
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Note 14 — Retirement Benefits
 Pension BenefitsOPEB
2022 2021 2022 2021
Discount rate(a)
5.53 %2.92 %5.51 %2.88 %
Investment crediting rate(b) 
5.07 %

3.75 %N/AN/A
Rate of compensation increase3.75 %3.75 %3.75 %3.75 %
Mortality tablePri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted) Pri-2012 table with MP- 2021 improvement scale (adjusted)
Health care cost trend on covered chargesN/AN/AInitial and ultimate rate of 5.00%

Initial and ultimate trend of 5.00%
__________
(a)The discount rates above represent the blended rates used to determine the majority of Exelon’s pension and OPEB obligations. Certain benefit plans used individual rates, which range from 5.46% - 5.60% and 5.49% - 5.51% for pension and OPEB plans, respectively, as of December 31, 2022 and 2.55% - 3.02% and 2.84% - 2.92% for pension and OPEB plans, respectively, as of December 31, 2021.
(b)The investment crediting rate above represents a weighted average rate.

The following assumptions were used to determine the net periodic benefit cost for Exelon for the years ended December 31, 2022, 2021 and 2020: 
 Pension Benefits OPEB
2022 2021 2020 2022 2021 2020
Discount rate(a)
3.24 %2.58 %3.34 %3.20 %2.51 %3.31 %
Investment crediting rate(b)
3.75 %3.72 %3.82 %N/A N/A N/A
Expected return on plan assets(c) 
7.00 %7.00 %7.00 %6.44 %6.46 %6.69 %
Rate of compensation increase3.75 %

3.75 %

3.75 % 3.75 % 3.75 % 3.75 %
Mortality tablePri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP - 2020 improvement scale (adjusted)Pri-2012 table with MP - 2019 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP - 2020 improvement scale (adjusted)Pri-2012 table with MP - 2019 improvement scale (adjusted)
Health care cost trend on covered chargesN/AN/AN/A
Initial and ultimate rate
of 5.00%
Initial and ultimate rate of 5.00%Initial and ultimate rate of 5.00%
__________
(a)The discount rates above represent the blended rates used to establish the majority of Exelon’s pension and OPEB costs. Certain benefit plans used individual rates, which range from 2.55%-3.24% and 2.84%-3.20% for pension and OPEB plans, respectively, for the year ended December 31, 2022; 2.11%-2.73% and 2.45%-2.63% for pension and OPEB plans; respectively, for the year ended December 31, 2021; and 3.02%-3.44% and 3.27%-3.40% for pension and OPEB plans, respectively, for the year ended December 31, 2020.
(b)The investment crediting rate above represents a weighted average rate.
(c)Not applicable to pension and OPEB plans that do not have plan assets.
Contributions
Exelon allocates contributions related to its legacy Exelon pension and OPEB plans to its subsidiaries based on accounting cost. For legacy CEG, CENG, FitzPatrick, and PHI plans, pension and OPEB contributions are allocated to the subsidiaries based on employee participation (both active and retired). For Exelon, in connection with the separation, additional qualified pension contributions of $207 million and $33 million were completed on February 1, 2022 and March 2, 2022, respectively. The following tables provide contributions to the pension and OPEB plans:
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Note 14 — Retirement Benefits
 Pension BenefitsOPEB
 2022202120202022 2021 2020
Exelon$570 $343 $306 $42 $63 $40 
ComEd176 174 143 22 
PECO15 17 18 — 
BGE48 57 56 20 24 22 
PHI69 39 30 
Pepco
DPL— — — — 
ACE— — — 
Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the Pension Protection Act of 2006 (the Act), management of the pension obligation, and regulatory implications. The Act requires the attainment of certain funding levels to avoid benefit restrictions (such as an inability to pay lump sums or to accrue benefits prospectively), and at-risk status (which triggers higher minimum contribution requirements and participant notification). The projected contributions below reflect a funding strategy to make annual contributions with the objective of achieving 100% funded status on an ABO basis over time. This funding strategy helps minimize volatility of future period required pension contributions. Based on this funding strategy and current market conditions, which are subject to change, Exelon’s estimated annual qualified pension contributions will be approximately $20 million in 2023. Unlike the qualified pension plans, Exelon’s non-qualified pension plans are not funded, given that they are not subject to statutory minimum contribution requirements.
While OPEB plans are also not subject to statutory minimum contribution requirements, Exelon does fund certain of its plans. For Exelon's funded OPEB plans, contributions generally equal accounting costs, however, Exelon’s management has historically considered several factors in determining the level of contributions to its OPEB plans, including liabilities management, levels of benefit claims paid, and regulatory implications (amounts deemed prudent to meet regulatory expectations and best assure continued rate recovery). The amounts below include benefit payments related to unfunded plans.
The following table provides all Registrants' planned contributions to the qualified pension plans, planned benefit payments to non-qualified pension plans, and planned contributions to OPEB plans in 2023:
Qualified Pension PlansNon-Qualified Pension PlansOPEB
Exelon$20 $48 $47 
ComEd20 19 
PECO— — 
BGE— 15 
PHI— 11 
Pepco— 11 
DPL— — — 
ACE— — — 
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Note 14 — Retirement Benefits
Estimated Future Benefit Payments
Estimated future benefit payments to participants in all of the pension plans and postretirement benefit plans as of December 31, 2022 were:
Pension BenefitsOPEB
2023$805 $152 
2024775 152 
2025789 152 
2026790 152 
2027798 153 
2028 through 20323,983 744 
Total estimated future benefits payments through 2032$7,940 $1,505 
Plan Assets
Investment Strategy. On a regular basis, Exelon evaluates its investment strategy to ensure that plan assets will be sufficient to pay plan benefits when due. As part of this ongoing evaluation, Exelon may make changes to its targeted asset allocation and investment strategy.
Exelon has developed and implemented a liability hedging investment strategy for its qualified pension plans that has reduced the volatility of its pension assets relative to its pension liabilities. Exelon is likely to continue to gradually increase the liability hedging portfolio as the funded status of its plans improves. The overall objective is to achieve attractive risk-adjusted returns that will balance the liquidity requirements of the plans’ liabilities while striving to minimize the risk of significant losses. Trust assets for Exelon’s OPEB plans are managed in a diversified investment strategy that prioritizes maximizing liquidity and returns while minimizing asset volatility.
Actual asset returns have an impact on the costs reported for the Exelon-sponsored pension and OPEB plans. The actual asset returns across Exelon’s pension and OPEB plans for the year ended December 31, 2022 were (18.69)% and (11.36)%, respectively, compared to an expected long-term return assumption of 7.00% and 6.44%, respectively. Exelon used an EROA of 7.00% and 6.50% to estimate its 2023 pension and OPEB costs, respectively.
Exelon’s pension and OPEB plan target asset allocations as of December 31, 2022 and 2021 were as follows:
December 31, 2022December 31, 2021
Asset CategoryPension BenefitsOPEBPension BenefitsOPEB
Equity securities28 %44 %35 %44 %
Fixed income securities44 %41 %41 %41 %
Alternative investments(a)
28 %15 %24 %15 %
Total100 %100 %100 %100 %
__________
(a)Alternative investments include private equity, hedge funds, real estate, and private credit.
Concentrations of Credit Risk. Exelon evaluated its pension and OPEB plans’ asset portfolios for the existence of significant concentrations of credit risk as of December 31, 2022. Types of concentrations that were evaluated include, but are not limited to, investment concentrations in a single entity, type of industry, foreign country, and individual fund. As of December 31, 2022, there were no significant concentrations (defined as greater than 10% of plan assets) of risk in Exelon’s pension and OPEB plan assets.

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Note 14 — Retirement Benefits
Fair Value Measurements
The following tables present pension and OPEB plan assets measured and recorded at fair value in Exelon's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of December 31, 2022 and 2021:
December 31, 2022December 31, 2021
Level 1Level 2Level 3Not subject to levelingTotalLevel 1Level 2Level 3Not subject to levelingTotal
Pension plan assets(a)
Cash and cash equivalents$200 $— $— $— $200 $260 $91 $— $— $351 
Equities(b)
1,448 — — 782 2,230 2,699 — 1,273 3,974 
Fixed income:
U.S. Treasury and agencies986 178 — — 1,164 1,002 176 — — 1,178 
State and municipal debt— 44 — — 44 — 47 — — 47 
Corporate debt(c)
— 1,975 12 — 1,987 — 2,523 325 — 2,848 
Other(b)
— 63 — 744 807 43 161 12 301 517 
Fixed income subtotal986 2,260 12 744 4,002 1,045 2,907 337 301 4,590 
Private equity— — — 1,169 1,169 — — — 1,124 1,124 
Hedge funds— — — 760 760 — — — 774 774 
Real estate— — — 821 821 — — — 760 760 
Private credit— — — 658 658 — — 130 603 733 
Pension plan assets subtotal2,634 2,260 12 4,934 9,840 4,004 2,998 469 4,835 12,306 
OPEB plan assets(a)
Cash and cash equivalents39 — — — 39 54 41 — — 95 
Equities305 — 273 579 387 — 324 713 
Fixed income:
U.S. Treasury and agencies17 45 — — 62 14 44 — — 58 
State and municipal debt— — — — — — 
Corporate debt(c)
— 44 — — 44 — 74 — — 74 
Other161 — 187 353 223 — 136 363 
Fixed income subtotal178 102 — 187 467 237 129 — 136 502 
Hedge funds— — — 120 120 — — — 175 175 
Real estate— — — 106 106 — — — 86 86 
Private credit— — — 39 39 — — — 84 84 
OPEB plan assets subtotal522 103 — 725 1,350 678 172 — 805 1,655 
Total pension and OPEB plan assets(d)
$3,156 $2,363 $12 $5,659 $11,190 $4,682 $3,170 $469 $5,640 $13,961 
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Note 14 — Retirement Benefits
__________
(a)See Note 17—Fair Value of Financial Assets and Liabilities for a description of levels within the fair value hierarchy.
(b)Includes derivative instruments of $11 million and $(2) million for the years ended December 31, 2022 and 2021, respectively, which have total notional amounts of $3,434 million and $3,481 million as of December 31, 2022 and 2021, respectively. The notional principal amounts for these instruments provide one measure of the transaction volume outstanding as of the fiscal years ended and do not represent the amount of the company’s exposure to credit or market loss.
(c)Includes investments in equities sold short held in investment vehicles primarily to hedge the equity option component of its convertible debt. Pension equities sold short totaled $(44) million as of December 31, 2021. OPEB equities sold short totaled $(18) million as of December 31, 2021. There were no individually held investments sold short in 2022.
(d)Excludes net liabilities of $318 million and $131 million as of December 31, 2022 and 2021, respectively, which include certain derivative assets that have notional amounts of $69 million and $127 million as of December 31, 2022 and 2021, respectively. These items are required to reconcile to the fair value of net plan assets and consist primarily of receivables or payables related to pending securities sales and purchases, interest and dividends receivable, and repurchase agreement obligations. The repurchase agreements generally have maturities ranging from 3-6 months.

The following table presents the reconciliation of Level 3 assets and liabilities for Exelon measured at fair value for pension and OPEB plans for the years ended December 31, 2022 and 2021:
Fixed IncomeEquitiesPrivate CreditTotal
Pension Assets
Balance as of January 1, 2022$337 $$130 $469 
Actual return on plan assets:
Relating to assets still held as of the
reporting date
(9)— (15)(24)
Relating to assets sold during the
period
(19)— 13 (6)
Purchases, sales and settlements:
Purchases— — 
Settlements(a)
(1)— (52)(53)
Transfers out of Level 3(b)
(296)(2)(83)(381)
Balance as of December 31, 2022$12 $— $— $12 
Fixed IncomeEquitiesPrivate CreditTotal
Pension Assets
Balance as of January 1, 2021$348 $$136 $485 
Actual return on plan assets:
Relating to assets still held as of the
reporting date
(12)— 18 
Purchases, sales and settlements:
Purchases10 — 15 
Settlements(a)
(13)— (29)(42)
Transfers into Level 3— 
Balance as of December 31, 2021$337 $$130 $469 
__________
(a)Represents cash settlements only.
(b)In 2022, transfers relate to changes in investment structure for certain investments due to the separation.

Valuation Techniques Used to Determine Fair Value
The techniques used to fair value the pension and OPEB assets invested in cash equivalents are the same as the valuation techniques used to determine the fair value of financial assets. See Cash Equivalents in Note 17 - Fair Value of Financial Assets and Liabilities for further information. Below outlines the techniques used to fair value the pension and OPEB assets invested in equities, fixed income, derivatives, private credit, private equity, and real estate investments.
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Note 14 — Retirement Benefits
Equities. These investments consist of individually held equity securities, equity mutual funds, and equity commingled funds in domestic and foreign markets. With respect to individually held equity securities, the trustees obtain prices from pricing services, whose prices are generally obtained from direct feeds from market exchanges, which Exelon is able to independently corroborate. Equity securities held individually, including real estate investment trusts, rights, and warrants, are primarily traded on exchanges that contain only actively traded securities due to the volume trading requirements imposed by these exchanges. The equity securities that are held directly by the trust funds are valued based on quoted prices in active markets and categorized as Level 1. Certain equity securities have been categorized as Level 2 because they are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities. Certain private placement equity securities are categorized as Level 3 because they are not publicly traded and are priced using significant unobservable inputs.
Equity commingled funds and mutual funds are maintained by investment companies, and fund investments are held in accordance with a stated set of fund objectives. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For equity commingled funds and mutual funds which are not publicly quoted, the fund administrators value the funds using the NAV per fund share, derived from the quoted prices in active markets on the underlying securities and are not classified within the fair value hierarchy. These investments can typically be redeemed monthly or more frequently, with 30 or less days of notice and without further restrictions.
Fixed income. For fixed income securities, which consist primarily of corporate debt securities, U.S. government securities, foreign government securities, municipal bonds, asset and mortgage-backed securities, commingled funds, mutual funds, and derivative instruments, the trustees obtain multiple prices from pricing vendors whenever possible, which enables cross-provider validations in addition to checks for unusual daily movements. A primary price source is identified based on asset type, class, or issue for each security. With respect to individually held fixed income securities, the trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the portfolio managers challenge an assigned price and the trustees determine that another price source is considered to be preferable. Exelon has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Exelon selectively corroborates the fair values of securities by comparison to other market-based price sources. Investments in U.S. Treasury securities have been categorized as Level 1 because they trade in highly-liquid and transparent markets. Certain private placement fixed income securities have been categorized as Level 3 because they are priced using certain significant unobservable inputs and are typically illiquid. The remaining fixed income securities, including certain other fixed income investments, are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized as Level 2.
Other fixed income investments primarily consist of fixed income commingled funds and mutual funds, which are maintained by investment companies and hold fund investments in accordance with a stated set of fund objectives. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For fixed income commingled funds and mutual funds which are not publicly quoted, the fund administrators value the funds using the NAV per fund share, derived from the quoted prices in active markets of the underlying securities and are not classified within the fair value hierarchy. These investments typically can be redeemed monthly or more frequently, with 30 or less days of notice and without further restrictions.
Derivative instruments. These instruments, consisting primarily of futures and swaps to manage risk, are recorded at fair value. Over-the-counter derivatives are valued daily, based on quoted prices in active markets and trade in open markets, and have been categorized as Level 1. Derivative instruments other than over-the-counter derivatives are valued based on external price data of comparable securities and have been categorized as Level 2.
Private credit. Private credit investments primarily consist of investments in private debt strategies. These investments are generally less liquid assets with an underlying term of 3 to 5 years and are intended to be held to maturity. The fair value of these investments is determined by the fund manager or administrator using a combination of valuation models including cost models, market models, and income models and typically cannot be redeemed until maturity of the term loan. Private credit investments held directly by Exelon are categorized as Level 3 because they are based largely on inputs that are unobservable and utilize complex valuation models. For managed private credit funds, the fair value is determined using a combination of valuation models including
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Note 14 — Retirement Benefits
cost models, market models, and income models and typically cannot be redeemed until maturity of the term loan. Managed private credit fund investments are not classified within the fair value hierarchy because their fair value is determined using NAV or its equivalent as a practical expedient.
Private equity. These investments include those in limited partnerships that invest in operating companies that are not publicly traded on a stock exchange such as leveraged buyouts, growth capital, venture capital, distressed investments, and investments in natural resources. These investments typically cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date, which is based on Exelon's understanding of the investment funds. Private equity valuations are reported by the fund manager and are based on the valuation of the underlying investments, which include unobservable inputs such as cost, operating results, discounted future cash flows, and market based comparable data. These valuation inputs are unobservable. The fair value of private equity investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.
Real estate. These investments are funds with a direct investment in pools of real estate properties. These funds are reported by the fund manager and are generally based on independent appraisals of the underlying investments from sources with professional qualifications, typically using a combination of market based comparable data and discounted cash flows. These valuation inputs are unobservable. Certain real estate investments cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date, which is based on Exelon's understanding of the investment funds. The remaining liquid real estate investments are generally redeemable from the investment vehicle quarterly, with 30 to 90 days of notice. The fair value of real estate investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.
Pension and OPEB assets also include investments in hedge funds. Hedge fund investments include those that employ a broad range of strategies to enhance returns and provide additional diversification. The fair value of hedge funds is determined using NAV or its equivalent as a practical expedient, and therefore, hedge funds are not classified within the fair value hierarchy. Exelon has the ability to redeem these investments at NAV or its equivalent subject to certain restrictions which may include a lock-up period or a gate.
Defined Contribution Savings Plan
The Registrants participate in a 401(k) defined contribution savings plan that is sponsored by Exelon. The plan is qualified under applicable sections of the IRC and allows employees to contribute a portion of their pre-tax and/or after-tax income in accordance with specified guidelines. All Registrants match a percentage of the employee contributions up to certain limits. The following table presents the employer contributions and employer matching contributions to the savings plan for the years ended December 31, 2022, 2021, and 2020:
For the Years Ended December 31,ExelonComEdPECOBGEPHIPepcoDPLACE
2022$91 $39 $13 $11 14 $$$
202190 35 12 12 14 
202095 36 12 13 14 

15. Derivative Financial Instruments (All Registrants)
The Registrants use derivative instruments to manage commodity price risk and interest rate risk related to ongoing business operations. The Registrants do not execute derivatives for speculative or proprietary trading purposes.
Authoritative guidance requires that derivative instruments be recognized as either assets or liabilities at fair value, with changes in fair value of the derivative recognized in earnings immediately. Other accounting treatments are available through special election and designation, provided they meet specific, restrictive criteria both at the time of designation and on an ongoing basis. These alternative permissible accounting treatments include NPNS, cash flow hedges, and fair value hedges. At ComEd, derivative economic hedges related to commodities are recorded at fair value and offset by a corresponding regulatory asset or liability. At Exelon, derivative economic hedges related to interest rates are recorded at fair value and offsets are recorded to Electric operating revenues or Interest expense based on the activity the transaction is economically hedging.
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(Dollars in millions, except per share data unless otherwise noted)

Note 15 — Derivative Financial Instruments
For all NPNS derivative instruments, accounts receivable or accounts payable are recorded when derivatives settle and revenue or expense is recognized in earnings as the underlying physical commodity is sold or consumed. At Exelon, derivative hedges that qualify and are designated as cash flow hedges are recorded at fair value and offsets are recorded to AOCI.
ComEd’s use of cash collateral is generally unrestricted unless ComEd is downgraded below investment grade. Cash collateral held by PECO, BGE, Pepco, DPL, and ACE must be deposited in an unaffiliated major U.S. commercial bank or foreign bank with a U.S. branch office that meets certain qualifications.
Commodity Price Risk
The Registrants employ established policies and procedures to manage their risks associated with market fluctuations in commodity prices by entering into physical and financial derivative contracts, which are either determined to be non-derivative or classified as economic hedges. The Utility Registrants procure electric and natural gas supply through a competitive procurement process approved by each of the respective state utility commissions. The Utility Registrants’ hedging programs are intended to reduce exposure to energy and natural gas price volatility and have no direct earnings impact as the costs are fully recovered from customers through regulatory-approved recovery mechanisms. The following table provides a summary of the Utility Registrants’ primary derivative hedging instruments, listed by commodity and accounting treatment.
RegistrantCommodityAccounting TreatmentHedging Instrument
ComEdElectricityNPNSFixed price contracts based on all requirements in the IPA procurement plans.
Electricity
Changes in fair value of economic hedge recorded to an offsetting regulatory asset or liability(a)
20-year floating-to-fixed energy swap contracts beginning June 2012 based on the renewable energy resource procurement requirements in the Illinois Settlement Legislation of approximately 1.3 million MWhs per year.
PECOElectricityNPNSFixed price contracts for default supply requirements through full requirements contracts.
GasNPNSFixed price contracts to cover about 10% of planned natural gas purchases in support of projected firm sales.
BGEElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
GasNPNSFixed price contracts for between 10-20% of forecasted system supply requirements for flowing (i.e., non-storage) gas for the November through March period.
PepcoElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
DPLElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
GasNPNSFixed and index priced contracts through full requirements contracts.
Gas
Changes in fair value of economic hedge recorded to an offsetting regulatory asset or liability(b)
Exchange traded future contracts for up to 50% of estimated monthly purchase requirements each month, including purchases for storage injections.
ACEElectricityNPNSFixed price contracts for all BGS requirements through full requirements contracts.
_________
(a)See Note 3—Regulatory Matters for additional information.
(b)The fair value of the DPL economic hedge is not material as of December 31, 2022 and 2021.
The fair value of derivative economic hedges is presented in Other current assets and current and noncurrent Mark-to-market derivative liabilities in Exelon's and ComEd's Consolidated Balance Sheets.
Interest Rate and Other Risk (Exelon)
Exelon Corporate uses a combination of fixed-rate and variable-rate debt to manage interest rate exposure. Exelon Corporate may utilize interest rate derivatives to lock in rate levels in anticipation of future financings, which are typically designated as cash flow hedges. In addition, Exelon Corporate may also utilize interest rate
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(Dollars in millions, except per share data unless otherwise noted)

Note 15 — Derivative Financial Instruments
swaps to manage interest rate exposure and manage potential fluctuations in Electric operating revenues at the corporate level in consolidation, which are directly correlated to yields on U.S. Treasury bonds under ComEd's distribution formula rate. These interest rate swaps are accounted for as economic hedges. A hypothetical 50 basis point change in the interest rates associated with Exelon's interest rate swaps as of December 31, 2022 would result in an immaterial impact to Exelon's Consolidated Net Income. Below is a summary of the interest rate hedge balances as of December 31, 2022. Exelon had no interest rate hedge activity in 2021.
December 31, 2022Derivatives Designated
as Hedging Instruments
Economic HedgesTotal
Other deferred debits (noncurrent assets)$$$11 
Total derivative assets11 
Mark-to-market derivative liabilities (current liabilities)— (3)(3)
Mark-to-market derivative liabilities (noncurrent liabilities)(4)— (4)
Total mark-to-market derivative liabilities(4)(3)(7)
Total mark-to-market derivative net assets$$$
Cash Flow Hedges (Interest Rate Risk)
For derivative instruments that qualify and are designated as cash flow hedges, the changes in fair value each period are initially recorded in AOCI and reclassified into earnings when the underlying transaction affects earnings. In 2022, Exelon Corporate entered into $635 million notional of 5-year maturity floating-to-fixed swaps and $635 million notional of 10-year maturity floating-to-fixed swaps, for a total of $1,270 million as of December 31, 2022. Exelon had no swaps designated as cash flow hedges as of December 31, 2021. In January 2023, Exelon Corporate entered into $115 million notional of 5-year maturity floating-to-fixed swaps and $115 million notional of 10-year maturity floating-to-fixed swaps, for a total of $230 million designated as cash flow hedges. The total notional of the swaps issued as of the balance sheet date and subsequently are $1,500 million.
The AOCI derivative gain is $2 million as of December 31, 2022. There were no amounts reclassified to Net Income in 2022. See Note 21 – Changes in Accumulated Other Comprehensive Income for additional information. Exelon had no swaps designated as cash flow hedges as of December 31, 2021.
Economic Hedges (Interest Rate and Other Risk)
Exelon Corporate executes derivative instruments to mitigate exposure to fluctuations in interest rates but for which the fair value or cash flow hedge elections were not made. For derivatives intended to serve as economic hedges, fair value is recorded on the balance sheet and changes in fair value each period are recognized in earnings or as a regulatory asset or liability, if regulatory requirements are met, each period.
Exelon Corporate enters into floating-to-fixed interest rate cap swaps to manage a portion of interest rate exposure in connection with existing borrowings. In 2022, Exelon Corporate entered into $1,000 million notional of 18-month maturity floating-to-fixed interest rate cap swaps and $850 million notional of 6-month maturity floating-to-fixed interest rate cap swaps, for a total of $1,850 million notional of floating-to-fixed interest rate cap swaps as of December 31, 2022. Exelon had no swaps as of December 31, 2021.
Additionally, to manage potential fluctuations in Electric operating revenues related to ComEd's distribution formula rate, Exelon Corporate enters into 30-year constant maturity treasury interest rate (Corporate 30-year treasury) swaps. As of December 31, 2022, Exelon Corporate entered into $500 million notional of calendar year 2023 Corporate 30-year treasury swaps. In January and February 2023, Exelon Corporate entered into a total of $1,500 million notional of calendar year 2023 Corporate 30-year treasury swaps. The total notional of the swaps issued as of the balance sheet date and subsequently are $2,000 million.


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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 15 — Derivative Financial Instruments
For the year ended December 31, 2022, Exelon Corporate recognized the following net pre-tax mark-to-market losses which are also recognized in Net fair value changes related to derivatives in Exelon's Consolidated Statements of Cash Flows. Exelon had no swaps for the years ended December 31, 2021 and 2020.
Loss
Income Statement Location2022
Electric operating revenues$
Interest expense
Total$

Credit Risk
The Registrants would be exposed to credit-related losses in the event of non-performance by counterparties on executed derivative instruments. The credit exposure of derivative contracts, before collateral, is represented by the fair value of contracts at the reporting date. The Utility Registrants have contracts to procure electric and natural gas supply that provide suppliers with a certain amount of unsecured credit. If the exposure on the supply contract exceeds the amount of unsecured credit, the suppliers may be required to post collateral. The net credit exposure is mitigated primarily by the ability to recover procurement costs through customer rates. As of December 31, 2022, the amount of cash collateral held with external counterparties by Exelon, ComEd, BGE, PHI, Pepco, DPL, and ACE was $297 million, $77 million, $23 million, $197 million, $26 million, $121 million, and $50 million, respectively, which is recorded in Other current liabilities in Exelon's, ComEd's, BGE's, PHI's, Pepco's, DPL's, and ACE's Consolidated Balance Sheets. The amount for PECO was not material as of December 31, 2022. As of December 31, 2021, the amounts for ComEd and DPL were $41 million and $43 million, respectively. The amounts for Exelon, PECO, BGE, PHI, Pepco, and ACE were not material as of December 31, 2021.
The Utility Registrants’ electric supply procurement contracts do not contain provisions that would require them to post collateral. PECO’s, BGE’s, and DPL’s natural gas procurement contracts contain provisions that could require PECO, BGE, and DPL to post collateral in the form of cash or credit support, which vary by contract and counterparty, with thresholds contingent upon PECO’s, BGE's, and DPL’s credit rating. As of December 31, 2022, PECO, BGE, and DPL were not required to post collateral for any of these agreements. If PECO, BGE, or DPL lost their investment grade credit rating as of December 31, 2022, they could have been required to post collateral to their counterparties of $71 million, $119 million, and $15 million, respectively.

16. Debt and Credit Agreements (All Registrants)
Short-Term Borrowings
Exelon Corporate, ComEd, and BGE meet their short-term liquidity requirements primarily through the issuance of commercial paper. PECO meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the Exelon intercompany money pool. Pepco, DPL, and ACE meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the PHI intercompany money pool. PHI Corporate meets its short-term liquidity requirements primarily through the issuance of short-term notes and borrowings from the Exelon intercompany money pool. The Registrants may use their respective credit facilities for general corporate purposes, including meeting short-term funding requirements and the issuance of letters of credit.
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
Commercial Paper
The following table reflects the Registrants' commercial paper programs supported by the revolving credit agreements and bilateral credit agreements as of December 31, 2022 and 2021:
Credit Facility Size
as of December 31,
Outstanding Commercial
Paper as of December 31,
Average Interest Rate on
Commercial Paper Borrowings
as of December 31,
Commercial Paper Issuer
2022(a)
2021(a)
2022202120222021
Exelon(b)
$4,000 $3,700 $1,938 $599 4.77 %0.35 %
ComEd1,000 1,000 427 — 4.71 %— %
PECO600 600 239 — 4.71 %— %
BGE600 600 409 130 4.81 %0.37 %
PHI(c)
900 900 414 469 4.78 %0.35 %
Pepco300 (d)300 299 175 4.79 %0.33 %
DPL300 (d)300 115 149 4.76 %0.36 %
ACE300 (d)300 — 145 — %0.35 %
__________
(a)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(b)Includes revolving credit agreements at Exelon Corporate with a maximum program size of $900 million and $600 million as of December 31, 2022 and December 31, 2021, respectively. Exelon Corporate had $449 million in outstanding commercial paper as of December 31, 2022 and no outstanding commercial paper as of December 31, 2021.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
(d)The standard maximum program size for revolving credit facilities is $300 million each for Pepco, DPL and ACE based on the credit agreements in place. However, the facilities at Pepco, DPL, and ACE have the ability to flex to $500 million, $500 million, and $350 million, respectively. The borrowing capacity may be increased or decreased during the term of the facility, except that (i) the sum of the borrowing capacity must equal the total amount of the facility, and (ii) the aggregate amount of credit used at any given time by each of Pepco, DPL, or ACE may not exceed $900 million or the maximum amount of short-term debt the company is permitted to have outstanding by its regulatory authorities. The total number of the borrowing reallocations may not exceed eight per year during the term of the facility. As of December 23, 2022, this ability was utilized to increase Pepco's program size to $400 million. As a result, the program sizes for DPL and ACE were decreased to $250 million each, which prevents the aggregate amount of outstanding short-term debt from potentially exceeding the $900 million limit.
In order to maintain their respective commercial paper programs in the amounts indicated above, each Registrant must have credit facilities in place, at least equal to the amount of its commercial paper program. A registrant does not issue commercial paper in an aggregate amount exceeding the then available capacity under its credit facility.
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(Dollars in millions, except per share data unless otherwise noted)

Note 16 — Debt and Credit Agreements
As of December 31, 2022, the Registrants had the following aggregate bank commitments, credit facility borrowings, and available capacity under their respective credit facilities:
Available Capacity as of December 31, 2022
Borrower(a)
Facility Type
Aggregate Bank
Commitment
(b)
Facility DrawsOutstanding
Letters of Credit
Actual
To Support
Additional
Commercial
Paper
(c)
Exelon(c)
Syndicated Revolver$4,000 $— $$3,992 $2,054 
ComEdSyndicated Revolver1,000 — 995 568 
PECOSyndicated Revolver600 — — 600 361 
BGESyndicated Revolver600 — — 600 191 
PHI(d)
Syndicated Revolver900 — — 900 486 
PepcoSyndicated Revolver300 — — 300 
DPLSyndicated Revolver300 — — 300 185 
ACESyndicated Revolver300 — — 300 300 
__________
(a)On February 1, 2022, Exelon Corporate and the Utility Registrants' respective syndicated revolving credit facilities were replaced with a new 5-year revolving credit facility.
(b)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(c)Includes $900 million aggregate bank commitment related to Exelon Corporate. Exelon Corporate had $3 million outstanding letters of credit as of December 31, 2022. Exelon Corporate had $448 million in available capacity to support additional commercial paper as of December 31, 2022.
(d)Represents the consolidated amounts of Pepco, DPL, and ACE.
The following table reflects the Registrants' credit facility agreements arranged at minority and community banks as of December 31, 2022 and 2021. These are excluded from the Maximum Program Size and Aggregate Bank Commitment amounts within the two tables above and the facilities are solely used to issue letters of credit.
Aggregate Bank CommitmentsOutstanding Letters of Credit
Borrower
2022(a)
202120222021
Exelon(b)
$140 $98 $10 $
ComEd40 33 
PECO40 33 
BGE15 
PHI(c)
45 24 — — 
Pepco15 — — 
DPL15 — — 
ACE15 — — 
__________
(a)These facilities were entered into on October 7, 2022 and expire on October 6, 2023.
(b)Represents the consolidated amounts of ComEd, PECO, BGE, Pepco, DPL, and ACE.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
Revolving Credit Agreements
On February 1, 2022, Exelon Corporate and the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. The following table reflects the credit agreements:
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Note 16 — Debt and Credit Agreements
BorrowerAggregate Bank CommitmentInterest Rate
Exelon Corporate$900 SOFR plus 1.275 %
ComEd1,000 SOFR plus 1.000 %
PECO600 SOFR plus 0.900 %
BGE600 SOFR plus 0.900 %
Pepco300 SOFR plus 1.075 %
DPL300 SOFR plus 1.000 %
ACE300 SOFR plus 1.075 %
Borrowings under Exelon’s, ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's revolving credit agreements bear interest at a rate based upon either the prime rate or a SOFR-based rate, plus an adder based upon the particular Registrant’s credit rating. The adders for the prime based borrowings and SOFR-based borrowings are presented in the following table:
Exelon(a)
ComEdPECOBGEPepcoDPLACE
Prime based borrowings0 - 27.5— — — 7.5 — 7.5 
SOFR-based borrowings90.0 - 127.5100.0 90.0 90.0 107.5 100.0 107.5 
__________
(a)Includes interest rate adders at Exelon Corporate of 27.5 basis points and 127.5 basis points for prime and SOFR-based borrowings, respectively.
If any registrant loses its investment grade rating, the maximum adders for prime rate borrowings and SOFR-based rate borrowings would be 65 basis points and 165 basis points, respectively. The credit agreements also require the borrower to pay a facility fee based upon the aggregate commitments. The fee varies depending upon the respective credit ratings of the borrower.
Short-Term Loan Agreements
On March 23, 2017, Exelon Corporate entered into a term loan agreement for $500 million. The loan agreement was renewed on March 14, 2022 and will expire on March 16, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65% and all indebtedness thereunder is unsecured. The loan agreement is reflected in Exelon's Consolidated Balance Sheets within Short-term borrowings.
On March 31, 2021, Exelon Corporate entered into a 364-day term loan agreement for $150 million with a variable interest rate of LIBOR plus 0.65% and an expiration date of March 30, 2022. Exelon Corporate repaid the term loan on March 30, 2022.
In connection with the separation, on January 24, 2022, Exelon Corporate entered into a 364-day term loan agreement for $1.15 billion. The loan agreement had an expiration date of January 23, 2023. Pursuant to the loan agreement, loans made thereunder bore interest at a variable rate equal to SOFR plus 0.75% until July 23, 2022 and a rate of SOFR plus 0.975% thereafter. All indebtedness pursuant to the loan agreement was unsecured. On August 11, 2022, Exelon Corporate made a partial repayment of $575 million on the term loan. On October 11, 2022, the remaining $575 million outstanding balance was repaid in conjunction with the $500 million 18-month term loan that was entered into on October 7, 2022.
On October 4, 2022, ComEd entered into a 364-day term loan agreement for $150 million with a variable rate equal to SOFR plus 0.75% and an expiration date of October 3, 2023. The proceeds from this loan were used to repay outstanding commercial paper obligations. The loan agreement is reflected in Exelon's and ComEd's Consolidated Balance Sheets within Short-term borrowings. The balance of the loan was repaid on January 13, 2023 in conjunction with the $400 million and $575 million First Mortgage Bond agreements that were entered into on January 3, 2023.
Components of Income Tax Expense or Benefit
Income tax expense (benefit) from continuing operations is comprised of the following components:
For the Year Ended December 31, 2022
 ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:
Federal
Current$(24)$29 $13 $(1)$16 $$(2)$
Deferred106 117 18 (3)(23)(2)(15)
Investment tax credit amortization(3)(1)— — (1)— — — 
State
Current(13)(6)(4)— — — — 
Deferred283 125 52 12 15 (16)14 12 
Total$349 $264 $79 $$$(9)$14 $
For the year ended December 31, 2017  
          Successor      For the Year Ended December 31, 2021
 Exelon  Generation ComEd PECO BGE PHI Pepco DPL ACE ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:                 Included in operations:
Federal                 Federal
Current$194
 $584
 $(191) $71
 $74
 $(60) $(20) $(24) $(12)Current$(152)$(30)$$(18)$18 $22 $$
Deferred(469) (2,003) 523
 28
 101
 250
 114
 82
 34
Deferred89 113 20 34 (52)(17)(14)(26)
Investment tax credit amortization(25) (21) (2) 
 (1) (1) 
 
 
Investment tax credit amortization(2)(1)— — (1)— — — 
State                
State
Current14
 65
 (49) 14
 (5) (4) (2) 
 
Current(46)(41)— — — — 
Deferred161
 
 136
 (9) 49
 32
 13
 13
 4
Deferred149 131 (9)(51)77 53 12 
Total$(125) $(1,375) $417
 $104
 $218
 $217
 $105
 $71
 $26
Total$38 $172 $12 $(35)$42 $15 $42 $(13)
                 Successor  Predecessor
 For the Year Ended December 31, 2016 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016
 Exelon Generation ComEd PECO BGE Pepco DPL ACE PHI  PHI
Included in operations:                    
Federal                    
Current$60
 $513
 $(135) $63
 $51
 $(118) $(88) $(26) $(281)  $
Deferred607
 (247) 379
 72
 88
 136
 97
 22
 283
  10
Investment tax credit amortization(24) (20) (2) 
 (1) 
 
 
 (1)  
State                   
Current39
 45
 (4) 9
 5
 7
 1
 
 (11)  
Deferred79
 (1) 63
 5
 31
 16
 12
 
 13
  7
Total$761
 $290
 $301
 $149
 $174
 $41
 $22
 $(4) $3
  $17
 For the Year Ended December 31, 2015
           Predecessor
      
  Exelon  Generation ComEd PECO BGE PHI Pepco DPL ACE
Included in operations:                 
Federal                 
Current$407
 $546
 $(80) $64
 $25
 $12
 $(54) $(27) $(2)
Deferred566
 16
 310
 69
 126
 103
 126
 73
 27
Investment tax credit amortization(22) (19) (2) 
 (1) (1) 
 
 
State                 
Current(86) (90) 7
 (10) 
 17
 6
 2
 3
Deferred208
 49
 45
 20
 39
 32
 24
 1
 5
Total$1,073

$502

$280

$143

$189

$163

$102

$49

$33

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

For the Year Ended December 31, 2020
 ExelonComEdPECOBGEPHIPepcoDPLACE
Included in operations:
Federal
Current$(180)$(24)$(7)$$25 $40 $(13)$(4)
Deferred10 112 10 (129)(62)(20)(43)
Investment tax credit amortization(3)(2)— — (1)— — — 
State
Current(37)(27)— — (5)— — — 
Deferred203 118 (24)27 33 15 
Total$(7)$177 $(30)$41 $(77)$(7)$(25)$(41)
Rate Reconciliation
The effective income tax rate from continuing operations varies from the U.S. Federalfederal statutory rate principally due to the following:
211




 For the Year Ended December 31, 2017
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
U.S. Federal statutory rate35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 %
Increase (decrease) due to:                 
State income taxes, net of Federal income tax benefit2.3
 3.0
 5.7
 0.6
 5.4
 4.8
 3.2
 5.4
 5.6
Qualified nuclear decommissioning trust fund income3.8
 10.0
 
 
 
 
 
 
 
Amortization of investment tax credit, including deferred taxes on basis difference(0.9) (2.2) (0.2) (0.1) (0.1) (0.2) (0.1) (0.2) (0.4)
Plant basis differences(a)
(1.7) 
 0.3
 (13.8) 0.1
 1.1
 (0.4) 2.0
 3.6
Production tax credits and other credits(1.8) (4.8) 
 
 
 
 
 
 
Noncontrolling interests0.1
 0.3
 
 
 
 
 
 
 
Like-kind exchange(1.2) 
 1.3
 
 
 
 
 
 
Merger expenses(3.7) (1.3) 
 
 
 (9.5) (6.3) (7.8) (19.8)
FitzPatrick bargain purchase gain(2.2) (5.7) 
 
 
 
 
 
 
Tax Cut and Jobs Act of 2017(b)
(33.1) (130.1) 0.1
 (2.3) 0.9
 6.4
 2.7
 2.5
 1.6
Other0.1
 (0.4) 0.2
 (0.1) 0.2
 (0.1) (0.2) 0.1
 (0.4)
Effective income tax rate(3.3)% (96.2)% 42.4 % 19.3 % 41.5 % 37.5 % 33.9 % 37.0 % 25.2 %

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
For the Year Ended December 31, 2022(a)
ExelonComEd
PECO(b)
BGE(b)
PHI(b)
Pepco(b)
DPL(b)
ACE(b)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of Federal income tax benefit(c)
8.8 8.0 5.8 2.6 2.1 (4.1)6.5 6.9 
Plant basis differences(4.1)(0.6)(11.9)(1.0)(1.7)(2.7)(0.7)(0.7)
Excess deferred tax amortization(11.8)(5.6)(3.0)(19.8)(19.5)(16.8)(18.4)(24.5)
Amortization of investment tax credit, including deferred taxes on basis differences(0.1)(0.1)— (0.1)(0.1)— (0.2)(0.2)
Tax credits(d)
0.1 (0.3)— (0.7)(0.7)(0.7)(0.6)(0.5)
Other(e)
0.6 — 0.2 0.1 0.4 0.3 0.1 — 
Effective income tax rate14.5 %22.4 %12.1 %2.1 %1.5 %(3.0)%7.7 %2.0 %
For the Year Ended December 31, 2021(a)
ExelonComEd
PECO(f)
BGE(f)
PHI
Pepco(f)
DPL(f)
ACE(f)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of federal income tax benefit5.0 7.8 (1.4)(10.8)10.1 2.7 25.0 7.4 
Plant basis differences(5.4)(0.8)(13.6)(1.7)(1.1)(1.6)(0.8)(0.2)
Excess deferred tax amortization(17.2)(7.6)(3.8)(16.3)(22.4)(16.4)(20.0)(37.1)
Amortization of investment tax credit, including deferred taxes on basis differences(0.1)(0.1)— (0.1)(0.1)— (0.2)(0.2)
Tax credits(0.7)(0.5)— (0.9)(0.5)(0.5)(0.4)(0.5)
Other(0.3)(1.0)0.1 (0.6)— (0.4)0.1 (0.2)
Effective income tax rate2.3 %18.8 %2.3 %(9.4)%7.0 %4.8 %24.7 %(9.8)%
For the Year Ended December 31, 2020(a)
Exelon
ComEd(g)
PECO(g)
BGE(h)
PHI(h)
Pepco(h)
DPL(h)
ACE(h)
U.S. federal statutory rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State income taxes, net of federal income tax benefit11.9 11.6 (4.5)5.5 5.1 4.5 6.6 7.0 
Plant basis differences(8.6)(0.6)(18.7)(1.5)(1.6)(1.7)(0.4)(3.0)
Excess deferred tax amortization(29.1)(11.2)(4.6)(13.9)(42.0)(25.4)(51.7)(82.1)
Amortization of investment tax credit, including deferred taxes on basis differences(0.3)(0.3)— (0.1)(0.2)(0.1)(0.3)(0.5)
Tax credits(0.5)(0.3)— (0.4)(0.3)(0.3)(0.3)(0.5)
Deferred Prosecution Agreement payments3.8 6.8 — — — — — — 
Other1.2 1.8 (0.4)(0.1)(0.4)(0.7)0.1 0.4 
Effective income tax rate(0.6)%28.8 %(7.2)%10.5 %(18.4)%(2.7)%(25.0)%(57.7)%
__________
(a)Positive percentages represent income tax expense. Negative percentages represent income tax benefit.
(b)For PECO, the lower effective tax rate is primarily related to plant basis differences attributable to tax repair deductions partially offset by higher state income taxes, net of federal income tax benefit, related to a one-time expense of $38 million attributable to the change in the Pennsylvania corporate income tax rate. For BGE, PHI, Pepco, DPL, and ACE, the lower effective tax rate is primarily related to the acceleration of certain income tax benefits due to distribution and transmission rate case settlements.
212




                 Successor  Predecessor
 For the Year Ended December 31, 2016 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016
 Exelon Generation ComEd PECO BGE Pepco 
DPL (c)
 
ACE (c)
 
PHI (c)
  PHI
U.S. Federal statutory rate35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 %  35.0 %
Increase (decrease) due to:                   
State income taxes, net of Federal income tax benefit (d)
3.3
 3.3
 5.6
 1.3
 5.0
 15.7
 52.7
 6.2
 5.8
  11.9
Qualified nuclear decommissioning trust fund income3.4
 7.8
 
 
 
 
 
 
 
  
Amortization of investment tax credit, including deferred taxes on basis difference(1.2) (2.3) (0.3) (0.1) (0.1) (0.2) (3.7) 0.8
 1.4
  (0.9)
Plant basis differences(4.8) 
 (0.6) (9.6) (2.7) (22.8) (25.5) 10.3
 39.0
  (13.5)
Production tax credits and other credits(3.6) (8.2) 
 
 
 
 
 
 
  
Noncontrolling interests(0.2) (0.3) 
 
 
 
 
 
 
  
Statute of limitations expiration(0.4) (1.7) 
 
 
 
 
 
 
  
Penalties1.9
 
 4.5
 
 
 
 
 
 (0.7)  
Merger Expenses5.5
 1.1
 
 
 
 23.5
 112.9
 (44.9) (89.0)  11.1
Other (e)
(0.6) (1.5) 0.1
 (1.2) 
 (1.8) (2.2) 1.3
 3.3
  3.6
Effective income tax rate38.3 % 33.2 % 44.3 % 25.4 % 37.2 %
49.4 %
169.2 %
8.7 %
(5.2)%
 47.2 %

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
 For the Year Ended December 31, 2015
           Predecessor      
 Exelon Generation ComEd PECO BGE  PHI Pepco DPL ACE
U.S. Federal statutory rate35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 % 35.0 %
Increase (decrease) due to:                 
State income taxes, net of Federal income tax benefit3.7
 1.0
 4.9
 1.0
 5.3
 6.6
 6.7
 1.7
 5.7
Qualified nuclear decommissioning trust fund loss(0.4) (0.8) 
 
 
 
 
 
 
Domestic production activities deduction(0.7) (1.3) 
 
 
 
 
 
 
Health care reform legislation
 
 
 
 0.1
 
 
 
 
Amortization of investment tax credit, including deferred taxes on basis difference(0.9) (1.5) (0.3) (0.1) (0.1) (0.2) (0.1) (0.4) (0.6)
Plant basis differences(1.5) 
 (0.1) (8.7) (0.7) (4.3) (5.8) (2.3) (1.3)
Production tax credits and other credits(1.9) (3.4) 
 
 
 
 
 
 
Noncontrolling interests0.3
 0.5
 
 
 
 
 
 
 
Statute of limitations expiration
(1.4) (2.4) 
 
 
 
 
 
 
Other (f)

 
 0.2
 0.2
 
 (3.2) (0.5) 5.2
 6.4
Effective income tax rate32.2 %
27.1 %
39.7 %
27.4 %
39.6 %
33.9 %
35.3 %
39.2 %
45.2 %
(c)For Exelon, the higher state income taxes, net of federal income tax benefit, is primarily due to the long-term marginal state income tax rate change of $67 million and the recognition of a valuation allowance of $40 million against the net deferred tax asset position for certain standalone state filing jurisdictions, partially offset by a one-time impact associated with a state tax benefit of $43 million and indemnification adjustments pursuant to the Tax Matters Agreement of $11 million as a result of the separation. For PECO, the higher state income taxes, net of federal income tax benefit, related to a one-time expense of $38 million attributable to the change in the Pennsylvania corporate income tax rate.
__________
(a)Includes the charges related to the transmission-related income tax regulatory asset for Exelon, ComEd, BGE, PHI, Pepco, DPL, and ACE of $35 million, $3 million, $5 million, $27 million, $14 million, $6 million, and $7 million, respectively (See Footnote 3 - Regulatory Matters).
(b)Included are impacts for TJCA other than the corporate rate change, including revisions further limiting tax deductions for compensation of certain highest paid executives, the write-off of foreign tax credit carryforwards, and loss of a 2015 domestic production activities deduction due to an NOL carryback.
(c)DPL and ACE recognized a loss before income taxes for the year ended December 31, 2016, and PHI recognized a loss before income taxes for the period of March 24, 2016, through December 31, 2016. As a result, positive percentages represent an income tax benefit for the periods presented.
(d)Includes a remeasurement of uncertain state income tax positions for Pepco and DPL.
(e)
At PECO, includes a cumulative adjustment related to an anticipated gas repairs tax return accounting method change. The method change request was filed and accepted in 2017. No change to the results recorded as of December 31, 2016.
(f)Includes impacts of the PHI Global Settlement for Pepco, DPL, ACE and PHI.

(d)For Exelon, reflects the income tax expense related to the write-off of federal tax credits subject to recapture of $15 million as a result of the separation.
Combined Notes(e)For Exelon, reflects the nondeductible transaction costs of approximately $12 million arising as part of the separation and indemnification adjustments pursuant to Consolidated Financial Statements - (Continued)the Tax Matters Agreement of $9 million.
(Dollars(f)For PECO, the lower effective tax rate is primarily related to plant basis differences attributable to tax repair deductions. For BGE, the income tax benefit is primarily due to the Maryland multi-year plan which resulted in millions, except per share data unless otherwise noted)
the acceleration of certain income tax benefits. For Pepco, the lower effective tax rate is primarily related to the acceleration of certain income tax benefits due to distribution and transmission rate case settlements. For DPL, the higher effective tax rate is primarily related to a state income tax expense, net of federal income tax benefit, due to the recognition of a valuation allowance of approximately $31 million against a deferred tax asset associated with Delaware net operating loss carryforwards as a result of a change in Delaware tax law. For ACE, the income tax benefit is primarily due to a distribution rate case settlement which allows ACE to retain certain tax benefits.

(g)For ComEd, the higher effective tax rate is primarily related to the nondeductible DPA payments. For PECO, the negative effective tax rate is primarily related to an increase in plant basis differences attributable to tax repair deductions related to an increase in storms and qualifying projects in 2021.
(h)For BGE, PHI, Pepco, DPL, and ACE, the income tax benefit is primarily attributable to accelerated amortization of transmission related deferred income tax regulatory liabilities as a result of regulatory settlements. See Note 3 — Regulatory Matters for additional information.
Tax Differences and Carryforwards
The tax effects of temporary differences and carryforwards, which give rise to significant portions of the deferred tax assets (liabilities), as of December 31, 20172022 and 20162021 are presented below:
As of December 31, 2022
ExelonComEdPECOBGEPHIPepcoDPLACE
Plant basis differences$(12,130)$(4,823)$(2,119)$(1,949)$(3,131)$(1,394)$(906)$(813)
Accrual based contracts10 — — — 10 — — — 
Derivatives and other financial instruments26 23 — — — — — 
Deferred pension and postretirement obligation551 (300)(31)(31)(80)(76)(39)(3)
Deferred debt refinancing costs132 (5)— (2)111 (4)(2)(1)
Regulatory assets and liabilities(1,107)(131)(169)57 (50)43 11 
Tax loss carryforward, net of valuation allowances250 — 33 72 71 20 46 
Tax credit carryforward468 — — — — — — — 
Investment in partnerships(21)— — — — — — — 
Other, net591 223 73 23 182 83 16 28 
Deferred income tax liabilities (net)$(11,230)$(5,013)$(2,213)$(1,830)$(2,885)$(1,381)$(868)$(732)
Unamortized investment tax credits(14)(8)— (2)(4)(1)(1)(2)
Total deferred income tax liabilities (net) and unamortized investment tax credits$(11,244)$(5,021)$(2,213)$(1,832)$(2,889)$(1,382)$(869)$(734)

213




 
As of December 31, 2017 (a)
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Plant basis differences$(12,490) $(2,819) $(3,825) $(1,762) $(1,368) $(2,521) $(1,152) $(717) $(607)
Accrual based contracts150
 (66) 
 
 
 216
 
 
 
Derivatives and other financial instruments(85) (66) (2) 
 
 3
 
 
 
Deferred pension and postretirement obligation1,463
 (205) (285) (15) (29) (130) (78) (51) (18)
Nuclear decommissioning activities(553) (553) 
 
 
 
 
 
 
Deferred debt refinancing costs217
 26
 (8) (1) (3) 203
 (4) (2) (1)
Regulatory assets and liabilities(688) 
 489
 (90) 136
 (184) 39
 88
 86
Tax loss carryforward344
 76
 33
 9
 11
 156
 40
 68
 35
Tax credit carryforward861
 868
 1
 
 
 6
 
 
 
Investment in partnerships(434) (416) 
 
 
 
 
 
 
Other, net746
 78
 141
 71
 13
 193
 94
 14
 16
Deferred income tax liabilities (net)$(10,469) $(3,077) $(3,456) $(1,788) $(1,240)
$(2,058)
$(1,061)
$(600)
$(489)
Unamortized investment tax credits(732) (705) (13) (1) (4) (8) (2) (3) (4)
Total deferred income tax liabilities (net) and
unamortized investment tax credits
$(11,201) $(3,782) $(3,469) $(1,789) $(1,244)
$(2,066)
$(1,063)
$(603)
$(493)
__________
(a) Includes remeasurement impacts related to the TCJA.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
As of December 31, 2021
ExelonComEdPECOBGEPHIPepcoDPLACE
Plant basis differences$(11,606)$(4,648)$(2,271)$(1,826)$(2,976)$(1,321)$(853)$(777)
Accrual based contracts56 — — — 56 — — — 
Derivatives and other financial instruments63 61 — — — — — 
Deferred pension and postretirement obligation641 (308)(32)(37)(90)(76)(40)(6)
Deferred debt refinancing costs146 (6)— (2)123 (2)(1)(1)
Regulatory assets and liabilities(1,130)(280)92 (53)24 55 31 
Tax loss carryforward, net of valuation allowances242 — 65 68 64 18 42 
Tax credit carryforward584 — — — — — — — 
Investment in partnerships(21)— — — — — — — 
Other, net449 216 97 21 212 99 19 34 
Deferred income tax liabilities (net)$(10,576)$(4,677)$(2,421)$(1,684)$(2,662)$(1,274)$(802)$(677)
Unamortized investment tax credits(15)(8)— (2)(5)(1)(1)(2)
Total deferred income tax liabilities (net) and
unamortized investment tax credits
$(10,591)$(4,685)$(2,421)$(1,686)$(2,667)$(1,275)$(803)$(679)
The following table provides Exelon’s, PECO’s, BGE’s, PHI’s, Pepco’s, DPL’s, and ACE’s carryforwards, of which the state related items are presented on a post-apportioned basis, as well as, any corresponding valuation allowances as of December 31, 2022. ComEd does not have net operating losses or credit carryforwards for the year ended December 31, 2022.
ExelonPECOBGEPHIPepcoDPLACE
Federal
Federal general business credits carryforwards(a)
$468 $— $— $— $— $— $— 
State
State net operating loss carryforwards4,991 970 1,142 1,501 50 768 651 
Deferred taxes on state tax attributes (net of federal taxes)307 37 72 104 52 46 
Valuation allowance on state tax attributes (net of federal taxes)(b)
57 — 33 — 32 — 
Year in which net operating loss or credit carryforwards will begin to expire(c)
2035203220332029N/A20322031
__________
(a)For Exelon, the federal general business credit carryforward will begin expiring in 2035.
(b)For Exelon, a full valuation allowance has been recorded against certain separate company state net operating loss carryforwards that are expected to expire before realization. For PECO, a valuation allowance has been recorded against certain Pennsylvania net operating losses that are expected to expire before realization. For DPL, a full valuation allowance has been recorded against Delaware net operating losses carryforwards due to a change in Delaware tax law.
(c)A portion of Exelon's, BGE's, Pepco's, and DPL's Maryland state net operating loss carryforward have an indefinite carryforward period.
214




 As of December 31, 2016
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Plant basis differences$(17,966) $(4,192) $(5,034) $(3,095) $(1,977) $(3,586) $(1,678) $(973) $(869)
Accrual based contracts434
 (115) 
 
 
 548
 
 
 
Derivatives and other financial instruments(179) (162) (3) 
 
 (1) 
 
 
Deferred pension and postretirement obligation2,287
 (316) (453) (18) (43) (111) (122) (74) (21)
Nuclear decommissioning activities(509) (509) 
 
 
 
 
 
 
Deferred debt refinancing costs325
 44
 (13) (1) (3) 293
 (7) (4) (2)
Regulatory assets and liabilities(3,319) 
 (226) 10
 (240) (1,205) (194) (75) (69)
Tax loss carryforward189
 61
 29
 
 22
 77
 27
 39
 14
Tax credit carryforward446
 493
 
 
 
 
 
 
 
Investment in partnerships(650) (650) 
 
 
 
 
 
 
Other, net1,485
 403
 351
 99
 27
 225
 66
 34
 34
Deferred income tax liabilities (net)$(17,457) $(4,943) $(5,349) $(3,005) $(2,214)
$(3,760)
$(1,908)
$(1,053)
$(913)
Unamortized investment tax credits(658) (626) (15) (1) (5) (9) (2) (3) (4)
Total deferred income tax liabilities (net) and
unamortized investment tax credits
$(18,115) $(5,569) $(5,364) $(3,006) $(2,219)
$(3,769)
$(1,910)
$(1,056)
$(917)

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


The following table provides the Registrants’ carryforwards and any corresponding valuation allowances as of December 31, 2017:
Note 13 — Income Taxes
           Successor       
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE 
Federal                  
Federal net operating loss$624
(a)  

$
 $156
 $7
 $
 $261
 $82
 $81
 $63
 
Deferred taxes on Federal net operating loss131
 
 33
 1
 
 55
 17
 17
 13
 
Federal general business credits carryforwards861
(b) 
868

1
 

1
 5
 
 
 
 
State                  
State net operating losses3,555
(c) 
1,479
(c) 

 98
(e)  
177
(d) 
1,440
(f) 
347
(g) 
753
(h) 
299
(i) 
Deferred taxes on state tax attributes (net)233
 97
 
 8
 12
 98
 23
 51
 21
 
Valuation allowance on state tax attributes29
 23
 
 
 1
 5
 
 
 
 
__________
(a)Exelon's federal net operating loss will begin expiring in 2034.
(b)Exelon’s federal general business credit carryforwards will begin expiring in 2033.
(c)Exelon’s and Generation's state net operating losses and credit carryforwards, which are presented on a post-apportioned basis, will begin expiring in 2018.
(d)BGE's state net operating loss carryforwards, which are presented on a post-apportioned basis, will begin expiring in 2026.
(e)PECO's state net operating loss carryforwards, which are presented on a post-apportioned basis, will begin expiring in 2031.
(f)PHI's state net operating loss carryforwards, which are presented on a post-apportioned basis, will begin expiring in 2036.
(g)Pepco's state net operating loss carryforwards, which are presented on a post-apportioned basis, will begin expiring in 2028.
(h)DPL's state net operating loss carryforwards, which are presented on a post-apportioned basis, will begin expiring in 2027.
(i)ACE's state net operating loss carryforwards, which are presented on a post-apportioned basis, will begin expiring in 2031.
Tabular Reconciliation of Unrecognized Tax Benefits
The following tables provide a reconciliation of the Registrants’table presents changes in unrecognized tax benefits, asfor Exelon, PHI, and ACE. ComEd's, PECO's, BGE's, Pepco's, and DPL's amounts are not material.
Exelon(a)
PHIACE
Balance at January 1, 2020$95 $48 $14 
Change to positions that only affect timing
Increases based on tax positions related to 2020— — 
Increases based on tax positions prior to 202026 — 
Decreases based on tax positions prior to 2020(5)— — 
Balance at December 31, 2020125 52 15 
Change to positions that only affect timing13 
Increases based on tax positions related to 2021— 
Increases based on tax positions prior to 2021— — 
Decreases based on tax positions prior to 2021(3)— — 
Balance at December 31, 2021143 56 16 
Change to positions that only affect timing(1)
Increases based on tax positions related to 2022— 
Increases based on tax positions prior to 2022— — 
Decreases based on tax positions prior to 2022— — — 
Balance at December 31, 2022$148 $59 $17 
______
(a)As of December 31, 2017, 2016 and 2015:
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Unrecognized tax benefits at January 1, 2017$916
 $490
 $(12) $
 $120
 $172
 $80
 $37
 $22
Increases based on tax positions related to 2017
 
 
 
 
 
 
 
 
Decreases based on tax positions related to 2017
 
 
 
 
 
 
 
 
Change to positions that only affect timing
 
 
 
 
 
 
 
 
Increases based on tax positions prior to 201728
 
 14
 
 
 14
 
 
 14
Decreases based on tax positions prior to 2017(196) (17) 
 
 
 (61) (21) (16) (22)
Decrease from settlements with taxing authorities(5) (5) 
 
 
 
 
 
 
Decreases from expiration of statute of limitations
 
 
 
 
 
 
 
 
Unrecognized tax benefits at December 31, 2017$743
 $468
 $2
 $
 $120

$125

$59

$21

$14

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars2022, Exelon recorded a receivable of $50 million in millions, except per share data unless otherwise noted)

           Successor     
 
Exelon
 Generation ComEd PECO BGE PHI Pepco DPL ACE
Unrecognized tax benefits at January 1, 2016$1,078
 $534
 $142
 $
 $120
 $22
 $8
 $3
 $
Merger balance transfer22
 5
 
 
 
 (5) 
 
 
Increases based on tax positions related to 2016108
 10
 
 
 
 59
 21
 16
 22
Decreases based on tax positions related to 2016
 
 
 
 
 
 
 
 
Change to positions that only affect timing(332) (12) (154) 
 
 
 
 
 
Increases based on tax positions prior to 201688
 
 
 
 
 96
 51
 18
 
Decreases based on tax positions prior to 2016(21) (20) 
 
 
 
 
 
 
Decrease from settlements with taxing authorities(27) (27) 
 
 
 
 
 
 
Decreases from expiration of statute of limitations
 
 
 
 
 
 
 
 
Unrecognized tax benefits at December 31, 2016$916

$490

$(12)
$

$120

$172

$80

$37

$22
           Predecessor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Unrecognized tax benefits at January 1, 2015$1,829
 $1,357
 $149
 $44
 $
 $702
 $
 $
 $
Increases based on tax positions related to 2015108
 
 
 
 106
 
 
 
 
Decreases based on tax positions related to 2015
 
 
 
 
 
 
 
 
Change to positions that only affect timing(705) (659) (7) (44) 
 (688) 
 
 
Increases based on tax positions prior to 201579
 65
 
 
 14
 11
 8
 3
 
Decreases based on tax positions prior to 2015(116) (112) 
 
 
 
 
 
 
Decreases from settlements with taxing authorities(31) (31) 
 
 
 
 
 
 
Decreases from expiration of statute of limitations(86) (86) 
 
 
 (3) 
 
 
Unrecognized tax benefits at December 31, 2015$1,078
 $534
 $142
 $
 $120

$22

$8

$3

$
Exelon established a liability for an uncertain tax position associated with the tax deductibility of certain merger commitments incurred by Exelon in connection with the acquisitions of Constellation in 2012 and PHI in 2016.  In the first quarter 2017, as a part of its examination of Exelon’s return, the IRS National Office issued guidance concurring with Exelon’s position that the merger commitments were deductible. As a result, Exelon, Generation, PHI, Pepco, DPL, and ACE decreased their liability for unrecognized tax benefits by $146 million, $19 million, $59 million, $21 million, $16 million, and $22 million, respectively,noncurrent Other assets in the first quarter of 2017 resulting in a benefit to Income taxes on Exelon’s, Generation’s, PHI’s, Pepco’s, DPL’s and ACE’s Consolidated Statements of Operations and Comprehensive Income and corresponding decreases in their effective tax rates.
Exelon reduced the liability related to the uncertain tax position associated with the like-kind exchange in the second quarter of 2017. Please see the Other Income Tax Matters section belowBalance Sheet for additional details related to the like-kind exchange adjustments made in the second quarter of 2017.
Exelon and Generation have $7 millionConstellation’s share of unrecognized tax benefits at December 31, 2017 for whichperiods prior to the ultimate tax benefit is highly certain, but for which there is uncertainty about the timing of such benefits.separation.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Exelon, Generation, and ComEd had $83 million, $7 million, and $(12) millionRecognition of unrecognized tax benefits at December 31, 2016 for which the ultimate tax benefit is highly certain, but for which there is uncertainty about the timing of such benefits.
Exelon, Generation, and ComEd had $415 million, $20 million and $142 million ofThe following table presents Exelon's unrecognized tax benefits at December 31, 2015 for which the ultimate tax benefit is highly certain, but for which there is uncertainty about the timing of such benefits.
The disallowance of such positions would not materially affect the annual effective tax rate but would accelerate the payment of cash to, or defer the receipt of the cash tax benefit from, the taxing authority to an earlier or later period respectively.
Unrecognized tax benefits that, if recognized, would affect the effective tax rate
Exelon, Generation, ComEd and PHI have $523 million, $461 million, $2 million, and $32 million, respectively, of unrecognized tax benefits at December 31, 2017 that, if recognized, would decrease the effectiveeffective tax rate. BGE, PHI, Pepco, DPL, and ACE have $120 million, $94 million, $59 million, $21 million, and $14 million of unrecognized tax benefits at December 31, 2017 that, if recognized, may be included in future base rates and that portion would have no impact to the effective tax rate.The Utility Registrants' amounts are not material.
Exelon, Generation, PHI, Pepco, DPL, and ACE had $633 million, $483 million, $93 million, $21 million, $16 million, and $22 million, respectively, of unrecognized tax benefits at December 31, 2016 that, if recognized, would decrease the effective tax rate. BGE, PHI, Pepco and DPL had $120 million, $80 million, $59 million, and $21 million of unrecognized tax benefits at December 31, 2016 that, if recognized, may be included in future base rates and that portion would have no impact to the effective tax rate.
Exelon, Generation, and PHI had $538 million, $509 million, and $11 million, respectively, of unrecognized tax benefits at December 31, 2015 that, if recognized, would decrease the effective tax rate. BGE, PHI, Pepco and DPL had $120 million, $11 million, $8 million and $3 million of unrecognized tax benefits at December 31, 2015 that, if recognized, may be included in future base rates and that portion would have no impact to the effective tax rate.
Exelon
December 31, 2022$90 
December 31, 202177 
December 31, 202073 
Reasonably possible the total amount of unrecognized tax benefits could significantly increase or decrease within 12 months after the reporting date
Like-Kind Exchange
As of December 31, 2017, Exelon and ComEd have2022, ACE has approximately $39 million and $2 million, respectively, of unrecognized federal and state income tax benefits that could significantly decrease within the 12 months after the reporting date due to a final resolution of the like-kind exchange litigation described below. The recognition of these unrecognized tax benefits would decrease Exelon and ComEd's effective tax rate.
Settlement of Income Tax Audits, Refund Claims, and Litigation
As of December 31, 2017, Exelon, Generation, BGE, PHI, Pepco, DPL, and ACE have approximately $683 million, $469 million, $120 million, $94 million, $59 million, $21 million, $14 million respectively, of unrecognized federal and state tax benefits that could significantly decrease within the 12 months after the reporting date as a result of completing audits, potential settlements, refund claims, andbased on the outcomesoutcome of pending court cases. Of the above unrecognized tax benefits, Exelon and Generation have $462 million that, if recognized, would decrease the effective tax rate.cases involving other taxpayers. The unrecognized tax benefit, related to BGE, Pepco, DPL and ACE, if recognized, may be included in future base rates and that portion would have no impact to the effective tax rate.

Total amounts of interest and penalties recognized
The following table represents the net interest and penalties receivable (payable) related to tax positions reflected in Exelon's Consolidated Balance Sheets. The Utility Registrants' amounts are not material.
Net interest and penalties receivable as ofExelon
December 31, 2022 (a) (b)
$45 
December 31, 2021 (c)
43 
215




Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 13 — Income Taxes
Total amounts__________
(a)As of December 31, 2022, the interest receivable balance is not expected to be settled in cash within the next twelve months and is therefore classified as a noncurrent receivable.
(b)As of December 31, 2022, Exelon recorded a receivable of $1 million in noncurrent Other assets in the Consolidated Balance Sheet for Constellation's share of net interest for periods prior to the separation.
(c)As of December 31, 2021, the interest receivable balance is not expected to be settled in cash within the next twelve months and is therefore classified as a noncurrent receivable. In December of 2021, Exelon received a refund of approximately $272 million related to an interest netting refund claim.
The Registrants did not record material interest and penalties recognized
The following tables represent the net interest and penalties receivable (payable), including interest and penaltiespenalty expense related to tax positions reflected in the Registrants’their Consolidated Balance Sheets.
           Successor      
Net interest receivable (payable) as of
Exelon(a)
 Generation 
ComEd(a)
 PECO BGE PHI Pepco DPL ACE
December 31, 2017$233
 $(3) $4
 $
 $
 $2
 $
 $
 $
December 31, 2016(507) 46
 (384) 8
 (1) 2
 1
 
 1
           Successor      
Net penalties receivable (payable) as ofExelon Generation ComEd PECO BGE PHI Pepco DPL ACE
December 31, 2017$(17) $
 $
 $
 $
 $
 $
 $
 $
December 31, 2016(106) 
 (86) 
 
 
 
 
 
__________
(a)Change in balance attributable to Like-Kind Exchange interest payments, see Other Tax Matters for further discussion.
The following tables set forth the net interest Interest expense and penalty expense including interest and penalties related to tax positions, recognizedare recorded in Interest expense, net and Other, net, respectively, in Other income and deductions in the Registrants’Registrants' Consolidated Statements of Operations and Comprehensive Income.
Description of tax years open to assessment by major jurisdiction
Major JurisdictionOpen YearsRegistrants Impacted
Federal consolidated income tax returns(a)
2010-2021All Registrants
Delaware separate corporate income tax returnsSame as federalDPL
District of Columbia combined corporate income tax returns2019-2021Exelon, PHI, Pepco
Illinois unitary corporate income tax returns2012-2021Exelon, ComEd
Maryland separate company corporate net income tax returnsSame as federalBGE, Pepco, DPL
New Jersey separate corporate income tax returns2017-2018Exelon
New Jersey combined corporate income tax returns2019-2021Exelon
New Jersey separate corporate income tax returns2018-2021ACE
New York combined corporate income tax returns2015-2021Exelon
Pennsylvania separate corporate income tax returns2011-2016Exelon
Pennsylvania separate corporate income tax returns2019-2021Exelon
Pennsylvania separate corporate income tax returns2019-2021PECO
__________
(a)Certain registrants are only open to assessment for tax years since joining the Exelon federal consolidated group; BGE beginning in 2012 and PHI, Pepco, DPL, and ACE beginning in 2016.
Other Tax Matters
Separation (Exelon)
In the first quarter of 2022, in connection with the separation, Exelon recorded an income tax expense related to continuing operations of $148 million primarily due to the long-term marginal state income tax rate change of $67 million discussed further below, the recognition of valuation allowances of approximately $40 million against the net deferred tax assets positions for certain standalone state filing jurisdictions, the write-off of federal and state tax credits subject to recapture of $17 million, and nondeductible transaction costs for federal and state taxes of $24 million.
Tax Matters Agreement (Exelon)
In connection with the separation, Exelon entered into a TMA with Constellation. The TMA governs the respective rights, responsibilities, and obligations between Exelon and Constellation after the separation with respect to tax liabilities, refunds and attributes for open tax years that Constellation was part of Exelon’s consolidated group for U.S. federal, state, and local tax purposes.
Indemnification for Taxes. As a former subsidiary of Exelon, Constellation has joint and several liability with Exelon to the IRS and certain state jurisdictions relating to the taxable periods prior to the separation. The TMA specifies that Constellation is liable for their share of taxes required to be paid by Exelon with respect to taxable periods prior to the separation to the extent Constellation would have been responsible for such taxes under the existing Exelon tax sharing agreement. As a result, as of March 31, 2022, Exelon recorded a receivable of $55 million in Current other assets in the Consolidated Balance Sheet for Constellation’s share of taxes for periods
216



Net interest expense (income) for the years endedExelon Generation ComEd PECO BGE Pepco DPL ACE
December 31, 2017$37
 $(1) $11
 $
 $
 $
 $
 $
December 31, 2016165
 (13) 117
 
 
 6
 
 (1)
December 31, 2015(13) (31) 7
 
 
 (4) 
 

Net penalty expense (income) for the years endedExelon Generation ComEd PECO BGE Pepco DPL ACE
December 31, 2017$(2) $
 $
$
$
 $
 $
 $
 $
December 31, 2016106
 
 86
 
 
 
 
 
December 31, 2015
 
 
 
 
 
 
 
 Successor  Predecessor
PHIDecember 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 December 31, 2015
Net interest expense (income)$
 $(2)  $
 $(34)

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Description of tax years open to assessment by major jurisdiction
Note 13 — Income Taxes
TaxpayerOpen Years
Exelon (and predecessors) and subsidiaries consolidated Federal income tax returns1999, 2001-2016
PHI Holdings and subsidiaries consolidated Federal income tax returns2013-2016
Exelon and subsidiaries Illinois unitary income tax returns2013-2016
Constellation Illinois unitary income tax returns2011-March 2012
Constellation combined New York corporate income tax returns2010-March 2012
Exelon combined New York corporate income tax returns

2011-2016
Exelon New Jersey corporate income tax returns2013-2015
Various separate company (excluding PECO) Pennsylvania corporate net income tax returns2011-2016
PECO Pennsylvania separate company returns
2010-2016

DPL Delaware separate company returnsSame as Federal
ACE New Jersey separate company returns2013-2016
Exelon and subsidiaries District of Columbia corporate income tax returns2014-2016
PHI Holdings and subsidiaries District of Columbia corporate income tax returns2014-2016
Various separate company Maryland corporate net income tax returnsSame as Federal
prior to the separation. As of December 31, 2022, Exelon recorded a payable of $18 million in Current other liabilities that is due to Constellation.
Other Tax MattersRefunds. The TMA specifies that Constellation is entitled to their share of any future tax refunds claimed by Exelon with respect to taxable periods prior to the separation to the extent that Constellation would have received such tax refunds under the existing Exelon tax sharing agreement.
Like-Kind ExchangeTax Attributes. At the date of separation certain tax attributes, primarily pre-closing tax credit carryforwards, that were generated by Constellation were required by law to be allocated to Exelon. The TMA also provides that Exelon will reimburse Constellation when those allocated tax attribute carryforwards are utilized. As of March 31, 2022, Exelon recorded a payable of $11 million and $484 million in Current other liabilities and Noncurrent other liabilities, respectively, in the Consolidated Balance Sheet for tax credit carryforwards that are expected to be utilized and reimbursed to Constellation. As of December 31, 2022, the current and noncurrent payable amounts are $169 million and $362 million, respectively.
Long-Term Marginal State Income Tax Rate (All Registrants)
Quarterly, Exelon throughreviews and updates its ComEd subsidiary, took a position on its 1999marginal state income tax returnrates for material changes in state tax laws and state apportionment. The Registrants remeasure their existing deferred income tax balances to defer approximately $1.2 billion ofreflect the changes in marginal rates, which results in either an increase or a decrease to their net deferred income tax gain on the sale of ComEd’s fossil generating assets. The gain was deferred by reinvesting a portion of the proceeds from the sale in qualifying replacement property under the like-kind exchange provisions of the IRC. The like-kind exchange replacement property purchased by Exelon included interests in three municipal-owned electric generation facilities which were properly leased backliability balances. Utility Registrants record corresponding regulatory liabilities or assets to the municipalities.
The IRS disagreed with this positionextent such amounts are probable of settlement or recovery through customer rates and asserted that the entire gain of approximately $1.2 billion was taxable in 1999. Exelon was unablean adjustment to reach agreement with the IRS regarding the dispute over the like-kind exchange position. The IRS asserted that the Exelon purchase and leaseback transaction was substantially similar to a leasing transaction, known as a SILO, which the IRS does not respect as the acquisition of an ownership interest in property. A SILO is a “listed transaction” that the IRS has identified as a potentially abusiveincome tax shelter under guidance issued in 2005. Accordingly, the IRS asserted that the sale of the fossil plants followed by the purchase and leaseback of the municipal owned generation facilities did not qualify as a like-kind exchange and the gain on the sale is fully subject to tax. The IRS also asserted a penalty of approximately $90 millionexpense for a substantial understatement of tax.
On September 30, 2013, the IRS issued a notice of deficiency to Exelon for the like-kind exchange position. Exelon filed a petition on December 13, 2013 to initiate litigation in the United States Tax Court (Tax Court) and the trial took place in August of 2015. Exelon was not required to remit any part of the asserted tax or penalty in order to litigate the issue.
On September 19, 2016, the Tax Court rejected Exelon’s position in the case and ruled that Exelon was not entitled to defer gain on the transaction. In addition, contrary to Exelon’s evaluation that the penalty was unwarranted, the Tax Court ruled that Exelon is liable for the penalty and interest due on

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

the asserted penalty. In June of 2017, the IRS finalized its computation of tax, penalties and interest owed by Exelon pursuant to the Tax Court’s decision. In September of 2017, Exelon appealed this decision to the U.S. Court of Appeals for the Seventh Circuit.
all other amounts. In the first quarter of 2013,2022, Exelon concluded that it was no longer more likely than not that the like-kind exchange position would be sustained and recorded charges to earnings representing the amount of interest expense (after-tax) and incremental state income tax expense that would be payable in the event Exelon is unsuccessful in litigation. Exelon agreed to hold ComEd harmless from any unfavorable impacts on ComEd’s equity of the after-tax interest and penalty amounts.
Prior to the Tax Court’s decision, however, Exelon did not believe it was likely a penalty would be assessed based on applicable case law and the facts of the transaction.  As a result, no charge had been recorded for the penalty or for after-tax interest on the penalty. While it has strong arguments on appeal with respect to both the merits and the penalty, Exelon has determined that, pursuant to the applicable authoritative guidance, it is no longer more likely than not to avoid ultimate imposition of the penalty. As a result, in the third quarter of 2016, Exelon and ComEd recorded a charge to earnings of approximately $106 million and $86 million, respectively, of penalty and approximately $94 million and $64 million, respectively, of after-tax interest. Exelon and ComEd recorded the penalty and pre-tax interest due on the asserted penalty to Other, net and Interest expense, net, respectively, on their Consolidated Statements of Operations. Consistent with Exelon’s agreement to continue to hold ComEd harmless from any unfavorable impact on its equity from the like-kind exchange position, ComEd recorded on its Consolidated Balance Sheets as of September 30, 2016, an additional $150 million receivable and non-cash equity contributions from Exelon.
As a result of the IRS’s finalization of its computation in the second quarter of 2017, Exelon recorded a benefit to earnings of approximately $26 million, consisting of an income tax benefit of $50 million and a reduction of penalties of $2 million, partially offset by after-tax interest expense of $26 million, while ComEd recorded a charge to earnings of approximately $23 million, consisting of income tax expense of $15 million and after-tax interest expense of $8 million.
In the second quarter of 2017, Exelon amended its agreement with ComEd to also hold ComEd harmless for the unfavorable impacts on its equity from the additional income tax amounts owed by ComEd as a result of the IRS’s finalization of its computation related to the like-kind exchange position. Accordingly, in the second quarter of 2017, ComEd recorded an additional receivable and non-cash equity contribution from Exelon for the total $23 million. As of June 30, 2017, ComEd had a total receivable from Exelon pursuant to the hold harmless agreement of $369 million, which was included in Current Receivables from Affiliates on ComEd’s Consolidated Balance Sheet.
In the fourth quarter of 2017, the IRS assessed the tax, penalties and interest of approximately $1.3 billion related to the like-kind exchange, including $300 million attributable to ComEd. While Exelon will receive a tax benefit of approximately $350 million associated with the deduction for the interest, Exelon currently has a net operating loss carryforward and thus does not expect to realize the cash benefit until 2018. After taking into account these interest deduction tax benefits, the total net cash outflow for the like-kind exchange is approximately $950 million, of which approximately $300 million is attributable to ComEd after giving consideration to Exelon’s agreement to hold ComEd harmless from any unfavorable impacts on ComEd’s equity from the like-kind exchange position. Following a final appellate decision, which is expected in 2018, Exelon expects to receive approximately $60 million related to final interest computations.
Of the above amounts payable, Exelon deposited with the IRS $1.25 billion in October of 2016. Exelon funded the $1.25 billion deposit with a combination of cash on hand and short-term borrowings. As a result of the IRS’s assessment of the tax, penalties and interest in the fourth quarter of 2017, the deposit is no longer available to Exelon and thus was reclassified from a current asset and is now reflected as an offset to the related liabilities for the tax, penalties, and interest that are included on

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Exelon’s balance sheet as current liabilities. The remaining amount due of approximately $20 million was paid in the fourth quarter of 2017. The $300 million payable discussed above attributable to ComEd, net of ComEd’s receivable pursuant to the hold harmless agreement, was settled with Exelon in the third quarter of 2017. No recovery will be sought from ComEd customers for any interest, penalty, or additional income tax payment amounts resulting from the like-kind exchange tax position.
As previously disclosed, in the first quarter of 2014, Exelon entered into an agreement to terminate its investment in one of the three municipal-owned electric generation properties in exchange for a net early termination amount of $335 million. In the first quarter of 2016, Exelon terminated its interests in the remaining two municipal-owned electric generation properties in exchange for $360 million.
Long-Term State Tax Apportionment (Exelon, Generation and PHI)
Exelon, Generation and PHI periodically review events that may significantly impact how income is apportioned among the states and, therefore, the calculation of their respective deferred state income taxes. Events that may require Exelon, Generation and PHI to update their long-term state tax apportionment include significant changes in tax law and/or significant operational changes. Exelon's, PHI's and Pepco's long-term marginal state income tax rate were revised in the first quarter of 2017 as a result of a statutory rate change in Washington, D.C. As a result, Exelon, PHI and Pepco recorded a one-time decrease to Deferred income tax liability of $28 million, $8 million and $8 million, respectively, on their Consolidated Balance Sheets. Because income taxes are recovered through customer rates, Exelon, PHI and Pepco recorded a corresponding regulatory liability of $8 million, in the Consolidated Balance Sheets. In addition, Exelon recorded a decrease to Income tax expense of $20 million, net of federal taxes, in the Consolidated Statements of Operations and Comprehensive Income for the three months ended March 31, 2017.
In the third quarter of 2017, Exelon reviewed and updated its marginal state income tax rates based on 2016for changes in state apportionment rates. In addition,due to the separation, which resulted in an increase of $67 million to the deferred tax liability at Exelon, Generation and a corresponding adjustment to income tax expense, net of federal taxes. The impacts to ComEd, recordedBGE, PHI, Pepco, DPL, and ACE for the impacts of Illinois’ statutory rate change,years ended December 31, 2022, 2021, and 2020 were not material.
December 31, 2022Exelon
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$67 
December 31, 2021
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$27 
December 31, 2020
Increase to Deferred Income Tax Liability and Income Tax Expense, Net of Federal Taxes$66 
Pennsylvania Corporate Income Tax Rate Change (Exelon and PECO)
On July 8, 2022, Pennsylvania enacted House Bill 1342, which increasedwill permanently reduce the total corporate income tax rate from 7.75%9.99% to 9.5% effective July 1, 2017.4.99%. The tax rate will be reduced to 8.99% for the 2023 tax year. Starting with the 2024 tax year, the rate is reduced by 0.50% annually until it reaches 4.99% in 2031. As a result of the rate changes,change, in the third quarter of 2017,2022, Exelon Generation and ComEdPECO recorded a one-time increasedecrease to Deferreddeferred income taxes of approximately $250$390 million $20 million and $270 million, respectively, on their Consolidated Balance Sheets. Becausewith a corresponding decrease to the deferred income taxes are recovered through customer rates, each of Exelon and ComEd recorded a corresponding regulatory asset of $272 million. Further, Exelon recorded a decrease$428 million for the amounts that are expected to Incomebe settled through future customer rates and an increase to income tax expense of approximately $20$38 million and Generation recorded an increase to Income tax expense of approximately $20 million (each net(net of federal taxes) in their Consolidated Statements of Operations and Comprehensive Income for the three and nine months ended September 30, 2017.. The Illinois statutorytax rate increasedecrease is not expected to have a material ongoing impact to Exelon’s Generation’s or ComEd’s future results of operations.and PECO’s financial statements. PECO did not update its marginal state income tax rates for the years ended December 31, 2021 and 2020.
Allocation of Tax Benefits (All Registrants)
Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACEThe Utility Registrants are all party to an agreement with Exelon and other subsidiaries of Exelon that provides for the allocation of consolidated tax liabilities and benefits (Tax Sharing Agreement). The Tax Sharing Agreement provides that each party is allocated an amount of tax similar to that which would be owed had the party been separately subject to tax. In addition, any net benefitfederal and state benefits attributable to Exelon isare reallocated to the other Registrants. That allocation is treated as a contribution from Exelon to the capital of the party receiving the benefit. During 2017, Generation, PECO, BGE, and PHI recorded an
The following table presents the allocation of Federal tax benefits from Exelon under the Tax Sharing Agreement, for the year ended December 31, 2022, 2021, and 2020.
217




Table of $102 million, $16 million, $10 million and $7 million respectively. ComEd, Pepco, DPL, and ACEContents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 13 — Income Taxes
ComEdPECOBGEPHIPepcoDPLACE
December 31, 2022(a)
$$47 $— $28 $23 $$
December 31, 2021(b)
19 — 17 16 — — 
December 31, 2020(c)
14 17 — 17 
__________
(a)BGE did not record an allocation of Federalfederal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

During 2016, Generation, PECO(b)BGE, DPL, and BGE recorded an allocation of Federal tax benefits from Exelon under the Tax Sharing Agreement of $94 million, $18 million and $8 million respectively. ComEdACE did not record an allocation of Federalfederal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss. PHI, Pepco, DPL and ACE
(c)BGE did not record an allocation of Federal tax benefits from Exelon as they were not a part of Exelon's 2015 consolidated tax return.
During 2015, Generation, PECO and BGE recorded an allocation of Federal tax benefits from Exelon under the Tax Sharing Agreement of $57 million, $16 million and $7 million respectively. ComEd did not record an allocation of Federalfederal tax benefits from Exelon under the Tax Sharing Agreement as a result of a tax net operating loss.

15. Asset Retirement Obligations (All Registrants)
Nuclear Decommissioning Asset Retirement Obligations
Generation has a legal obligation to decommission its nuclear power plants following the expiration of their operating licenses. To estimate its decommissioning obligation related to its nuclear generating stations for financial accounting and reporting purposes, Generation uses a probability-weighted, discounted cash flow model which, on a unit-by-unit basis, considers multiple outcome scenarios that include significant estimates and assumptions, and are based on decommissioning cost studies, cost escalation rates, probabilistic cash flow models and discount rates. Generation updates its ARO annually unless circumstances warrant more frequent updates, based on its review of updated cost studies and its annual evaluation of cost escalation factors and probabilities assigned to various scenarios.
The following table provides a rollforward of the nuclear decommissioning ARO reflected on Exelon’s and Generation’s Consolidated Balance Sheets, from January 1, 2016 to December 31, 2017:
 
Exelon and
Generation
Nuclear decommissioning ARO at January 1, 2016$8,246
Accretion expense436
Net increase for changes in and timing of estimated future cash flows61
Costs incurred related to decommissioning plants(9)
Nuclear decommissioning ARO at December 31, 2016 (a)
8,734
Accretion Expense458
Acquisition of FitzPatrick444
Net increase for changes in and timing of estimated future cash flows34
Costs incurred related to decommissioning plants(8)
Nuclear decommissioning ARO at December 31, 2017 (a)
$9,662
__________
(a)Includes $13 million and $10 million as the current portion of the ARO at December 31, 2017 and 2016, respectively, which is included in Other current liabilities on Exelon’s and Generation’s Consolidated Balance Sheets.
During 2017, Generation’s total nuclear ARO increased by approximately $928 million, primarily reflecting year-to-date accretion of the ARO liability due to the passage of time, the recording of the fair value of the ARO, including subsequent purchase accounting adjustments, for the acquisition of FitzPatrick (see Note 4Mergers, Acquisitions and Dispositions), the announced early retirement of TMI, and impacts of ARO updates completed during 2017 to reflect changes in amounts and timing of estimated decommissioning cash flows.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The net $34 million increase in the ARO during 2017 for changes in the amounts and timing of estimated decommissioning cash flows was driven by multiple adjustments throughout the year, some with offsetting impacts. These adjustments include a $178 million increase due to higher assumed probabilities of early retirement of Salem and a $138 million increase in TMI’s ARO liability associated with the May 30, 2017 announcement to early retire the unit on September 30, 2019. The increase in the ARO liability for TMI incorporates the early shutdown date, increases the probabilities of longer term decommissioning scenarios, and reflects an increase in the estimated costs to decommission based on an updated decommissioning cost study. See Note 8Early Nuclear Plant Retirements for additional information regarding Salem and TMI. These increases in the ARO were partially offset by a $180 million decrease for refinements in estimated fleet wide labor costs expected to be incurred for certain on-site personnel during decommissioning as well as net decreases resulting from updates to the cost studies of Clinton, Quad Cities and Dresden.
During 2016, Generation’s ARO increased by approximately $488 million, primarily reflecting year-to-date accretion of the ARO liability of approximately $436 million due to the passage of time and impacts of ARO updates completed during 2016 to reflect changes in amounts and timing of estimated decommissioning cash flows. The $61 million increase in the ARO during 2016 for changes in the amounts and timing of estimated decommissioning cash flows was driven by multiple adjustments throughout the year, some with offsetting impacts. These adjustments include increases of $288 million resulting from the change in the assumed DOE spent fuel acceptance date for disposal from 2025 to 2030 as well as increases resulting from updates to the cost studies of Oyster Creek, Zion, Calvert Cliffs, Ginna and Nine Mile Point. These increases were partially offset by a decrease of $165 million resulting from changes to the decommissioning scenarios and their probabilities as well as reductions in estimated cost escalation rates, primarily for labor, energy and waste burial costs. Most of the increase to the ARO resulting from the June 2, 2016, announcement to early retire Clinton and Quad Cities was reversed pursuant to the December 7, 2016, enactment of the Illinois FEJA. See Note 8Early Nuclear Plant Retirements for additional information.
Nuclear Decommissioning Trust Fund Investments
NDT funds have been established for each generation station unit to satisfy Generation’s nuclear decommissioning obligations. Generally, NDT funds established for a particular unit may not be used to fund the decommissioning obligations of any other unit.
The NDT funds associated with Generation's nuclear units have been funded with amounts collected from the previous owners and their respective utility customers. PECO is authorized to collect funds, in revenues, for decommissioning the former PECO nuclear plants through regulated rates, and these collections are scheduled through the operating lives of the former PECO plants. The amounts collected from PECO customers are remitted to Generation and deposited into the NDT funds for the unit for which funds are collected. Every five years, PECO files a rate adjustment with the PAPUC that reflects PECO’s calculations of the estimated amount needed to decommission each of the former PECO units based on updated fund balances and estimated decommissioning costs. The rate adjustment is used to determine the amount collectible from PECO customers. On March 31, 2017, PECO filed its Nuclear Decommissioning Cost Adjustment (NDCA) with the PAPUC proposing an annual recovery from customers of approximately $4 million. This amount reflects a decrease from the current approved annual collection of approximately $24 million primarily due to the removal of the collections for Limerick Units 1 and 2 as a result of the NRC approving the extension of the operating licenses for an additional 20 years. On August 8, 2017, the PAPUC approved the filing and the new rates became effective January 1, 2018.
Any shortfall of funds necessary for decommissioning, determined for each generating station unit, is ultimately required to be funded by Generation, with the exception of a shortfall for the current decommissioning activities at Zion Station, where certain decommissioning activities have been

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

transferred to a third-party (see Zion Station Decommissioning below) and the CENG units, where any shortfall is required to be funded by both Generation and EDF. Generation, through PECO, has recourse to collect additional amounts from PECO customers related to a shortfall of NDT funds for the former PECO units, subject to certain limitations and thresholds, as prescribed by an order from the PAPUC. Generally, PECO, and likewise Generation will not be allowed to collect amounts associated with the first $50 million of any shortfall of trust funds compared to decommissioning costs, as well as 5% of any additional shortfalls, on an aggregate basis for all former PECO units. The initial $50 million and up to 5% of any additional shortfalls would be borne by Generation. No recourse exists to collect additional amounts from utility customers for any of Generation's other nuclear units. With respect to the former ComEd and PECO units, any funds remaining in the NDTs after all decommissioning has been completed are required to be refunded to ComEd’s or PECO’s customers, subject to certain limitations that allow sharing of excess funds with Generation related to the former PECO units. With respect to Generation's other nuclear units, Generation retains any funds remaining after decommissioning. However, in connection with CENG's acquisition of the Nine Mile Point and Ginna plants and settlements with certain regulatory agencies, CENG is subject to certain conditions pertaining to nuclear decommissioning trust funds that, if met, could possibly result in obligations to make payments to certain third parties (clawbacks). For Nine Mile Point and Ginna, the clawback provisions are triggered only in the event that the required decommissioning activities are discontinued or not started or completed in a timely manner. In the event that the clawback provisions are triggered for Nine Mile Point, then, depending upon the triggering event, an amount equal to 50% of the total amount withdrawn from the funds for non-decommissioning activities or 50% of any excess funds in the trust funds above the amounts required for decommissioning (including spent fuel management and decommissioning) is to be paid to the Nine Mile Point sellers. In the event that the clawback provisions are triggered for Ginna, then an amount equal to any estimated cost savings realized by not completing any of the required decommissioning activities is to be paid to the Ginna sellers. Generation expects to comply with applicable regulations and timely commence and complete all required decommissioning activities.
At December 31, 2017 and 2016, Exelon and Generation had NDT fund investments totaling $13,349 million and $11,061 million, respectively. The increase is primarily driven by improved market performance and the acquisition of FitzPatrick. For additional information related to the NDT fund investments, refer to Note 11—Fair Value of Financial Assets and Liabilities.
The following table provides unrealized gains on NDT funds for 2017, 2016 and 2015:
 Exelon and Generation
 For the Years Ended December 31,
 2017 2016 2015
Net unrealized gains (losses) on decommissioning trust
funds—Regulatory Agreement Units (a)
$455
 $216
 $(282)
Net unrealized gains (losses) on decommissioning trust
funds—Non-Regulatory Agreement Units (b)(c)
521
 194
 (197)
__________
(a)Net unrealized gains (losses) related to Generation’s NDT funds associated with Regulatory Agreement Units are included in Regulatory liabilities on Exelon’s Consolidated Balance Sheets and Noncurrent payables to affiliates on Generation’s Consolidated Balance Sheets.
(b)Excludes $(10) million, $(1) million and $7 million of net unrealized gains (losses) related to the Zion Station pledged assets in 2017, 2016 and 2015, respectively. Net unrealized gains related to Zion Station pledged assets are included in the Other current liabilities and Payable for Zion Station decommissioning on Exelon’s and Generation’s Consolidated Balance Sheets in 2017 and 2016, respectively.
(c)Net unrealized gains (losses) related to Generation’s NDT funds with Non-Regulatory Agreement Units are included within Other, net in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income.
Interest and dividends on NDT fund investments are recognized when earned and are included in Other, net in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income. Interest and dividends earned on the NDT fund investments for the Regulatory Agreement

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Units are eliminated within Other, net in Exelon’s and Generation’s Consolidated Statement of Operations and Comprehensive Income.
Accounting Implications of the Regulatory Agreements with ComEd and PECO
Based on the regulatory agreement with the ICC that dictates Generation’s obligations related to the shortfall or excess of NDT funds necessary for decommissioning the former ComEd units on a unit-by-unit basis, as long as funds held in the NDT funds are expected to exceed the total estimated decommissioning obligation, decommissioning-related activities, including realized and unrealized gains and losses on the NDT funds and accretion of the decommissioning obligation, are generally offset within Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income.  The offset of decommissioning-related activities within the Consolidated Statement of Operations and Comprehensive Income results in an equal adjustment to the noncurrent payables to affiliates at Generation and an adjustment to the regulatory liabilities at Exelon. Likewise, ComEd has recorded an equal noncurrent affiliate receivable from Generation and corresponding regulatory liability. Should the expected value of the NDT fund for any former ComEd unit fall below the amount of the expected decommissioning obligation for that unit, the accounting to offset decommissioning-related activities in the Consolidated Statement of Operations and Comprehensive Income for that unit would be discontinued, the decommissioning-related activities would be recognized in the Consolidated Statements of Operations and Comprehensive Income and the adverse impact to Exelon’s and Generation’s results of operations and financial positions could be material. As of December 31, 2017, the NDT funds of each of the former ComEd units, except for Zion (see Zion Station Decommissioning below), are expected to exceed the related decommissioning obligation for each of the units. For the purposes of making this determination, the decommissioning obligation referred to is different, as described below, from the calculation used in the NRC minimum funding obligation filings based on NRC guidelines.
Based on the regulatory agreement supported by the PAPUC that dictates Generation’s rights and obligations related to the shortfall or excess of trust funds necessary for decommissioning the former PECO units, regardless of whether the funds held in the NDT funds are expected to exceed or fall short of the total estimated decommissioning obligation, decommissioning-related activities are generally offset within Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income. The offset of decommissioning-related activities within the Consolidated Statement of Operations and Comprehensive Income results in an equal adjustment to the noncurrent payables to affiliates at Generation and an adjustment to the regulatory liabilities at Exelon. Likewise, PECO has recorded an equal noncurrent affiliate receivable from Generation and a corresponding regulatory liability. Any changes to the PECO regulatory agreements could impact Exelon’s and Generation’s ability to offset decommissioning-related activities within the Consolidated Statement of Operations and Comprehensive Income, and the impact to Exelon’s and Generation’s results of operations and financial positions could be material.
The decommissioning-related activities related to the Non-Regulatory Agreement Units are reflected in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income.
Refer to Note 3—Regulatory Matters and Note 26—Related Party Transactions for information regarding regulatory liabilities at ComEd and PECO and intercompany balances between Generation, ComEd and PECO reflecting the obligation to refund to customers any decommissioning-related assets in excess of the related decommissioning obligations.
Zion Station Decommissioning
On September 1, 2010, Generation completed an Asset Sale Agreement (ASA) with EnergySolutions Inc. and its wholly owned subsidiaries, EnergySolutions, LLC (EnergySolutions) and

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

ZionSolutions, under which ZionSolutions has assumed responsibility for decommissioning Zion Station, which is located in Zion, Illinois and ceased operation in 1998. Specifically, Generation transferred to ZionSolutions substantially all of the assets (other than land) associated with Zion Station, including assets held in related NDT funds. In consideration for Generation’s transfer of those assets, ZionSolutions assumed decommissioning and other liabilities, excluding the obligation to dispose of SNF and decommission the SNF dry storage facility, associated with Zion Station. Pursuant to the ASA, ZionSolutions will periodically request reimbursement from the Zion Station-related NDT funds for costs incurred related to its decommissioning efforts at Zion Station. During 2013, EnergySolutions entered a definitive acquisition agreement and was acquired by another company. Generation reviewed the acquisition as it relates to the ASA to decommission Zion Station. Based on that review, Generation determined that the acquisition will not adversely impact decommissioning activities under the ASA.
ZionSolutions is subject to certain restrictions on its ability to request reimbursements from the Zion Station NDT funds as defined within the ASA. Therefore, the transfer of the Zion Station assets did not qualify for asset sale accounting treatment and, as a result, the related NDT funds were reclassified to Pledged assets for Zion Station decommissioning within Generation’s and Exelon’s Consolidated Balance Sheets and will continue to be measured in the same manner as prior to the completion of the transaction. Additionally, the transferred ARO for decommissioning was replaced with a Payable for Zion Station decommissioning in Generation’s and Exelon’s Consolidated Balance Sheets. Changes in the value of the Zion Station NDT assets, net of applicable taxes, will be recorded as a change in the Payable to ZionSolutions. At no point will the payable to ZionSolutions exceed the project budget of the costs remaining to decommission Zion Station. Generation has retained its obligation for the SNF. Following ZionSolutions' completion of its contractual obligations and transfer of the NRC license to Generation, Generation will store the SNF at Zion Station until it is transferred to the DOE for ultimate disposal, and will complete all remaining decommissioning activities associated with the SNF dry storage facility. Generation has a liability of approximately $114 million, which is included within the nuclear decommissioning ARO at December 31, 2017. Generation also has retained NDT assets to fund its obligation to maintain the SNF at Zion Station until transfer to the DOE and to complete all remaining decommissioning activities for the SNF storage facility. Any shortage of funds necessary to maintain the SNF and decommission the SNF storage facility is ultimately required to be funded by Generation. Any Zion Station NDT funds remaining after the completion of all decommissioning activities will be returned to ComEd customers in accordance with the applicable orders. The following table provides the pledged assets and payables to ZionSolutions, and withdrawals by ZionSolutions at December 31, 2017 and 2016:
 Exelon and Generation
 2017 2016
Carrying value of Zion Station pledged assets (a)
$39
 $113
Payable to Zion Solutions (b)
37
 104
Current portion of payable to Zion Solutions (c)
37
 90
Cumulative withdrawals by Zion Solutions to pay decommissioning costs (d)
942
 878
__________ 
(a)Included in Other current assets within Exelon’s and Generation’s Consolidated Balance Sheets in 2017.
(b)Excludes a liability recorded within Exelon’s and Generation’s Consolidated Balance Sheets related to the tax obligation on the unrealized activity associated with the Zion Station NDT Funds. The NDT Funds will be utilized to satisfy the tax obligations as gains and losses are realized.
(c)Included in Other current liabilities within Exelon’s and Generation’s Consolidated Balance Sheets.
(d)Includes project expenses to decommission Zion Station and estimated tax payments on Zion Station NDT fund earnings.
ZionSolutions leased the land associated with Zion Station from Generation pursuant to a Lease Agreement. Under the Lease Agreement, ZionSolutions has committed to complete the required decommissioning work according to an established schedule and constructed a dry cask storage facility on the land and has loaded the SNF from the SNF pools onto the dry cask storage facility at Zion Station.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Rent payable under the Lease Agreement is $1.00 per year, although the Lease Agreement requires ZionSolutions to pay property taxes associated with Zion Station and penalty rents may accrue if there are unexcused delays in the progress of decommissioning work at Zion Station or the construction of the dry cask SNF storage facility. To reduce the risk of default by ZionSolutions, EnergySolutions provided a $200 million letter of credit to be used to fund decommissioning costs in the event the NDT assets are insufficient. In accordance with the terms of the ASA, the letter of credit was reduced to $98 million in August 2017 due to the completion of key decommissioning milestones. EnergySolutions and its parent company have also provided a performance guarantee and EnergySolutions has entered into other agreements that will provide rights and remedies for Generation and the NRC in the case of other specified events of default, including a special purpose easement for disposal capacity at the EnergySolutions site in Clive, Utah, for all LLRW volume of Zion Station.
NRC Minimum Funding Requirements
NRC regulations require that licensees of nuclear generating facilities demonstrate reasonable assurance that funds will be available in specified minimum amounts to decommission the facility at the end of its life. The estimated decommissioning obligations as calculated using the NRC methodology differ from the ARO recorded on Generation’s and Exelon’s Consolidated Balance Sheets primarily due to differences in the type of costs included in the estimates, the basis for estimating such costs, and assumptions regarding the decommissioning alternatives to be used, potential license renewals, decommissioning cost escalation, and the growth rate in the NDT funds. Under NRC regulations, if the minimum funding requirements calculated under the NRC methodology are less than the future value of the NDT funds, also calculated under the NRC methodology, then the NRC requires either further funding or other financial guarantees.
Key assumptions used in the minimum funding calculation using the NRC methodology at December 31, 2017 include: (1) consideration of costs only for the removal of radiological contamination at each unit; (2) the option on a unit-by-unit basis to use generic, non-site specific cost estimates; (3) consideration of only one decommissioning scenario for each unit; (4) the plants cease operation at the end of their current license lives (with no assumed license renewals for those units that have not already received renewals and with an assumed end-of-operations date of 2018 for Oyster Creek and 2019 for TMI); (5) the assumption of current nominal dollar cost estimates that are neither escalated through the anticipated period of decommissioning, nor discounted using the CARFR; and (6) assumed annual after-tax returns on the NDT funds of 2% (3% for the former PECO units, as specified by the PAPUC).
In contrast, the key criteria and assumptions used by Generation to determine the ARO and to forecast the target growth in the NDT funds at December 31, 2017 include: (1) the use of site specific cost estimates that are updated at least once every five years; (2) the inclusion in the ARO estimate of all legally unavoidable costs required to decommission the unit (e.g., radiological decommissioning and full site restoration for certain units, on-site spent fuel maintenance and storage subsequent to ceasing operations and until DOE acceptance, and disposal of certain low-level radioactive waste); (3) the consideration of multiple scenarios where decommissioning and site restoration activities, as applicable, are completed under four possible scenarios ranging from 10 to 70 years after the cessation of plant operations; (4) the consideration of multiple end of life scenarios; (5) the measurement of the obligation at the present value of the future estimated costs and an annual average accretion of the ARO of approximately 5% through a period of approximately 30 years after the end of the extended lives of the units; and (6) an estimated targeted annual pre-tax return on the NDT funds of 4.8% to 6.4% (as compared to a historical 5-year annual average pre-tax return of approximately 8%).
Generation is required to provide to the NRC a biennial report by unit (annually for units that have been retired or are within five years of the current approved license life), based on values as of December 31, addressing Generation’s ability to meet the NRC minimum funding levels. Depending

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

on the value of the trust funds, Generation may be required to take steps, such as providing financial guarantees through letters of credit or parent company guarantees or making additional contributions to the trusts, which could be significant, to ensure that the trusts are adequately funded and that NRC minimum funding requirements are met. As a result, Exelon’s and Generation’s cash flows and financial positions may be significantly adversely affected.
Generation filed its biennial decommissioning funding status report with the NRC on March 31, 2017 for all units except for Zion Station which is included in a separate report to the NRC submitted by ZionSolutions (see Zion Station Decommissioning above) and FitzPatrick which is still owned by Entergy as of the NRC reporting period. This status report demonstrated adequate decommissioning funding assurance for all units except for Peach Bottom Unit 1. As a former PECO plant, financial assurance for decommissioning Peach Bottom Unit 1 is provided by the NDT fund in addition to collections from PECO ratepayers. As discussed under Nuclear Decommissioning Trust Fund Investments above, the amount collected from PECO ratepayers has been adjusted in the March 31, 2017 filing to the PAPUC which was approved on August 8, 2017 and effective on January 1, 2018.
Generation will file its next decommissioning funding status report with the NRC by March 31, 2018 for shutdown reactors and reactors within five years of shutdown. This report will reflect the status of decommissioning funding assurance as of December 31, 2017 and will include the early retirement of TMI announced on May 30, 2017, in addition to an adjustment for the February 2, 2018 announced retirement date for Oyster Creek. A shortfall at any unit could necessitate that Exelon post a parental guarantee for Generation's share of the funding assurance. However, the amount of any required guarantee will ultimately depend on the decommissioning approach adopted, the associated level of costs, and the decommissioning trust fund investment performance going forward.
As the future values of trust funds change due to market conditions, the NRC minimum funding status of Generation’s units will change. In addition, if changes occur to the regulatory agreement with the PAPUC that currently allows amounts to be collected from PECO customers for decommissioning the former PECO units, the NRC minimum funding status of those plants could change at subsequent NRC filing dates.
Non-Nuclear Asset Retirement Obligations (All Registrants)
Generation has AROs for plant closure costs associated with its fossil and renewable generating facilities, including asbestos abatement, removal of certain storage tanks, restoring leased land to the condition it was in prior to construction of renewable generating stations and other decommissioning-related activities. PHI and the Utility Registrants have AROs primarily associated with the abatement and disposal of equipment and buildings contaminated with asbestos and PCBs. See Note 1—Significant Accounting Policies for additional information on the Registrants’ accounting policy for AROs.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table provides a rollforward of the non-nuclear AROs reflected on the Registrants’ Consolidated Balance Sheets from January 1, 2016 to December 31, 2017:
           Successor      
 Exelon Generation ComEd PECO BGE 
PHI(g)
 Pepco DPL ACE
Non-nuclear AROs at
January 1, 2016
$355
 $197

$113

$27

$18
 $
 $
 $
 $
Merger with PHI(a)
8
 1






 
 
 
 
Net increase due to changes in, and timing of, estimated future cash flows(b)
34
 8

4

1

7
 14
 2
 9
 3
Development projects(c)
11
 11






 
 
 
 
Accretion expense(d)
18
 10
 7
 1
 
 
 
 
 
Sale of generating assets(e)
(22) (22) 
 
 
 
 
 
 
Payments(11) (6)
(3)
(1)
(1) 
 
 
 
Non-nuclear AROs at December 31, 2016(f)
393
 199

121

28

24
 14
 2

9

3
Net increase (decrease) due to changes in, and timing of, estimated future cash flows(b)
(11) (1)
(13)
(1)
2
 2
 1
 1
 
Development projects(c)
1
 1






 
 
 
 
Accretion expense(d)
18
 10

7

1


 
 
 
 
Deconsolidation of EGTP(h)
(7) (7) 
 
 
 
 
 
 
Payments(10) (5)
(2)
(1)
(2) 
 
 
 
Non-nuclear AROs at December 31, 2017(f)
$384
 $197

$113

$27

$24
 $16
 $3

$10

$3

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 Predecessor
 
PHI(g)
 2016
Non-nuclear AROs at January 1, 2016$8
Accretion expense
Non-nuclear AROs at March 23, 2016$8
__________
(a)Following the completion of the PHI merger on March 23, 2016, PHI's AROs related to its unregulated business interests were transferred to Exelon and Generation.
(b)During the year ended December 31, 2017, ComEd recorded a decrease of $1 million in Operating and maintenance expense. Generation, PECO, BGE, Pepco, DPL and ACE did not record any adjustments in Operating and maintenance expense for the year ended December 31, 2017. During the year ended December 31, 2016, Generation recorded a increase of $1 million in Operating and maintenance expense. ComEd, PECO, BGE, Pepco, DPL and ACE did not record any adjustments in Operating and maintenance expense for the year ended December 31, 2016.
(c)Relates to new AROs recorded due to the construction of solar, wind and other non-nuclear generating sites.
(d)For ComEd, PECO and BGE, the majority of the accretion is recorded as an increase to a regulatory asset due to the associated regulatory treatment.
(e)Reflects a reduction to the ARO resulting primarily from the sales of the New Boston generating site and Upstream business in 2016. See Note 4—Mergers, Acquisitions and Dispositions for further information.
(f)Excludes the current portion of the ARO at December 31, 2017 for Generation, ComEd and BGE of $1 million, $2 million and $2 million, respectively. Excludes the current portion of the ARO at December 31, 2016 for Generation, ComEd and BGE of $1 million, $2 million and $3 million, respectively. This is included in Other current liabilities on the Registrants' respective Consolidated Balance Sheets.
(g)For PHI, the successor period includes activity for the year ended December 31, 2017 and the period of March 24, 2016 through December 31, 2016. The PHI predecessor periods include activity for the period of January 1, 2016 through March 23, 2016.
(h)See Note 4—Mergers, Acquisitions and Dispositions for additional information.
16.14. Retirement Benefits (All Registrants)
Exelon sponsors defined benefit pension plans and other postretirement benefitOPEB plans for essentially all current employees. Substantially all non-union employees and electing union employees hired on or after January 1, 2001 participate in cash balance pension plans. Effective January 1, 2009, substantially all newly-hired union-represented employees participate in cash balance pension plans. Effective February 1, 2018 for most newly-hired GenerationBSC non-represented, non-craft, employees, January 1, 2021 for most newly-hired utility management employees, and BSC non-representedfor certain newly-hired union employees pursuant to their collective bargaining agreements, these newly-hired employees are not eligible for pension benefits, and will instead be eligible to receive an enhanced non-discretionary employer contribution in an Exelon defined contribution savings plan. Effective January 1, 2018, most newly-hired non-represented, non-craft, employees are not eligible for OPEB benefits and employees represented by Local 614 are not eligible for retiree health care benefits. Effective January 1, 2021, most non-represented, non-craft, employees who are under the age of 40 are not eligible for retiree health care benefits. Effective January 1, 2022, management employees retiring on or after that date are no longer eligible for retiree life insurance benefits.
Effective March 23, 2016, Exelon becameFebruary 1, 2022, in connection with the sponsor of all of PHI's defined benefitseparation, pension and OPEB obligations and assets for current and former employees of the Constellation business and certain other postretirement benefitformer employees of Exelon and its subsidiaries transferred to pension and OPEB plans and assumed PHI's benefit plan obligationstrusts maintained by Constellation or its subsidiaries. The Exelon New England Union Employees Pension Plan and related assets. Constellation Mystic Power, LLC Union Employees Pension Plan Including Plan A and Plan B were transferred. The following OPEB plans were also transferred: Constellation Mystic Power, LLC Post-Employment Medical Savings Account Plan; Exelon New England Union Post-Employment Medical Savings Account Plan; and the Nine Mile Point Nuclear Station, LLC Medical Care and Prescription Drug Plan for Retired Employees.
As a result PHI's benefitof the separation, Exelon restructured certain of its qualified pension plans. Pension obligations and assets for current and former employees continuing with Exelon and who were participants in the Exelon Employee Pension Plan for Clinton, TMI, and Oyster Creek, Pension Plan of Constellation Energy Nuclear Group, LLC, and Nine Mile Point Pension Plan were merged into the Pension Plan of Constellation Energy Group, Inc, which was subsequently renamed, Exelon Pension Plan (EPP). Exelon employees who participated in these plans prior to the separation now participate in the EPP. The merging of the plans did not change the benefits offered to the plan net obligationparticipants and, related regulatory assets were transferred to Exelon.thus, had no impact on Exelon's pension obligations.
The table below shows the pension and other postretirement benefit plans in which employees
218




Table of each operating company participated at December 31, 2017:

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
The tables below show the pension and OPEB plans in which employees of each operating company participated as of December 31, 2022:
Operating Company(e)
Name of Plan:GenerationComEdPECOBGEBSCPHIPHIPepcoPepcoDPLDPLACE
Qualified Pension Plans:
Exelon Corporation Retirement Program(a)
XXXXXXXX
Exelon Corporation Cash Balance Pension Plan(a)
XXXXX
Exelon Corporation Pension Plan for Bargaining Unit Employees(a)
XXX
Exelon New England Union Employees Pension Plan(a)(b)
XXXXXXXX
Exelon Employee Pension Plan for Clinton, TMI and Oyster Creek(a)
XXXX
Pension Plan of Constellation Energy Group, Inc.(b)
XXXXX
Pension Plan of Constellation Energy Nuclear Group, LLC(c)
XXXX
Nine Mile Point Pension Plan(c)
XX
Constellation Mystic Power, LLC Union Employees Pension Plan Including Plan A and Plan B(b)

X
Pepco Holdings LLC Retirement Plan(d)
XXXXXXXXX
Non-Qualified Pension Plans:
Exelon Corporation Supplemental Pension Benefit Plan and 2000 Excess Benefit Plan(a)
XXXX
Exelon Corporation Supplemental Management Retirement Plan(a)
XXXXXX
Constellation Energy Group, Inc. Senior Executive Supplemental Plan(b)
XXX
Constellation Energy Group, Inc. Supplemental Pension Plan(b)
XXX
Constellation Energy Group, Inc. Benefits Restoration Plan(b)
XXXXX
Constellation Energy Nuclear Plan, LLC Executive Retirement Plan(c)
XX
Constellation Energy Nuclear Plan, LLC Benefits Restoration Plan(c)
XX
Baltimore Gas & Electric Company Executive Benefit Plan(b)
XXX
Baltimore Gas & Electric Company Manager Benefit Plan(b)

XXXXX
Pepco Holdings LLC 2011 Supplemental Executive Retirement Plan(d)
XXXXXX
Conectiv Supplemental Executive Retirement Plan(d)

XXXXXX
Pepco Holdings LLC Combined Executive Retirement Plan(d)

XXXX
Atlantic City Electric Director Retirement Plan (d)

X

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Operating Company(e)
Name of Plan:GenerationComEdPECOBGEBSCPHIPHIPepcoPepcoDPLDPLACE
Other Postretirement BenefitOPEB Plans:
PECO Energy Company Retiree Medical Plan(a)
XXXXXXXX
Exelon Corporation Health Care Program(a)
XXXXXXXX
Exelon Corporation Employees’ Life Insurance Plan(a)
XXXXX
Exelon Corporation Health Reimbursement Arrangement Plan(a)
XXXXX
Constellation Energy Group, Inc.BGE Retiree Medical Plan(b)
XXXXXXX
Constellation Energy Group, Inc.BGE Retiree Dental Plan(b)
XXX
Constellation Energy Group, Inc. Employee Life Insurance Plan and Family Life Insurance Plan(b)
XXXXX
Constellation Mystic Power, LLC
Post-Employment Medical Account Savings Plan(b)
X
Exelon New England Union Post-Employment Medical Savings Account Plan(a)
X
Retiree Medical Plan of Constellation Energy Nuclear Group, LLC(c)
XXXX
Exelon Retiree Dental Plan of Constellation Energy Nuclear Group, LLC(c)
XXXX
Nine Mile Point Nuclear Station, LLC Medical Care and Prescription Drug Plan for Retired Employees(c)
XX
Pepco Holdings LLC Welfare Plan for Retirees(d)
XXXXXXXXX
________________________________
(a)These plans are collectively referred to as the legacy Exelon plans.
(b)These plans are collectively referred to as the legacy Constellation Energy Group (CEG) Plans.
(c)These plans are collectively referred to as the legacy CENG plans.
(d)These plans are collectively referred to as the legacy PHI plans.
(e)Employees generally remain in their legacy benefit plans when transferring between operating companies.
(a)These plans are collectively referred to as the legacy Exelon plans.
(b)These plans are collectively referred to as the legacy Constellation Energy Group (CEG) Plans.
(c)These plans are collectively referred to as the legacy CENG plans.
(d)These plans are collectively referred to as the legacy PHI plans.
(e)Employees generally remain in their legacy benefit plans when transferring between operating companies.

219




Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 14 — Retirement Benefits
Exelon’s traditional and cash balance pension plans are intended to be tax-qualified defined benefit plans. Exelon has elected that the trusts underlying these plans be treated as qualified trusts under the IRC. If certain conditions are met, Exelon can deduct payments made to the qualified trusts, subject to certain IRC limitations.
Benefit Obligations, Plan Assets, and Funded Status
Exelon recognizesAs of February 1, 2022, in connection with the overfunded or underfunded status of defined benefitseparation, Exelon's pension and OPEB plans as an asset or liability on its balance sheet, with offsetting entrieswere remeasured. The remeasurement and separation resulted in a decrease to AOCIthe pension obligation, net of plan assets, of $921 million and a decrease to the OPEB obligation of $893 million. Additionally, accumulated other comprehensive loss, decreased by $1,994 million (after-tax) and regulatory assets (liabilities), in accordanceand liabilities increased by $14 million and $5 million respectively. Key assumptions were held consistent with the applicable authoritative guidance. The measurement date foryear end December 31, 2021 assumptions with the plans is December 31.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

exception of the discount rate.
During the first quarter of 2017,2022, Exelon received an updated valuation of its pension and other postretirement benefit obligationsOPEB to reflect actual census data as of JanuaryFebruary 1, 2017.2022. This valuation resulted in an increasea decrease to the pension obligationobligations of $92$24 million and an increase to the other postretirement benefit obligationOPEB obligations of $57$5 million. Additionally, accumulated other comprehensive loss increased by approximately $59$5 million (after tax),(after-tax) and regulatory assets increasedand liabilities decreased by approximately $57$30 million and regulatory liabilities increased by approximately $4 million.
In connection with the acquisition of FitzPatrick in the first quarter of 2017, Exelon recorded pension and OPEB obligations for FitzPatrick employees of $16$3 million, and $17 million, respectively. Refer to Note 4 — Mergers, Acquisitions and Dispositions for additional discussion of the acquisition of FitzPatrick.
The following tables provide a rollforward of the changes in the benefit obligations and plan assets of Exelon for the most recent two years for all plans combined:
Pension BenefitsOPEB
2022202120222021
Change in benefit obligation:
Net benefit obligation as of the beginning of year$14,236 $14,861 $2,502 $2,661 
Service cost236 294 41 51 
Interest cost439 406 76 69 
Plan participants’ contributions— — 26 32 
Actuarial (gain) loss(a)
(3,379)(442)(604)(116)
Settlements— (23)— (5)
Gross benefits paid(855)(860)(157)(190)
Net benefit obligation as of the end of year$10,677 $14,236 $1,884 $2,502 
 Pension Benefits 
Other
Postretirement Benefits
Exelon2017 
2016(a)
 2017 
2016(a)
Change in benefit obligation:       
Net benefit obligation at beginning of year$21,060
 $17,753
 $4,457
 $3,938
Service cost387
 354

106
 107
Interest cost842
 830

182
 185
Plan participants’ contributions
 
 53
 54
Actuarial loss (gain)1,182
 567
 350
 (136)
Plan amendments9
 (60) 
 
Acquisitions/divestitures(b)
16
 2,667
 17
 589
Settlements(34) 


 
Gross benefits paid(1,125) (1,051)
(309) (280)
Net benefit obligation at end of year$22,337
 $21,060
 $4,856
 $4,457
 Pension BenefitsOPEB
2022202120222021
Change in plan assets:
Fair value of net plan assets as of the beginning of year$12,165 $11,883 $1,665 $1,635 
Actual return on plan assets(2,359)822 (225)130 
Employer contributions570 343 42 63 
Plan participants’ contributions— — 26 32 
Gross benefits paid(855)(860)(157)(190)
Settlements— (23)— (5)
Fair value of net plan assets as of the end of year$9,521 $12,165 $1,351 $1,665 
__________
(a)The pension and OPEB gains in 2022 and 2021 primarily reflect an increase in the discount rate.



220




 Pension Benefits 
Other
Postretirement Benefits
Exelon2017 
2016(a)
 2017 
2016(a)
Change in plan assets:       
Fair value of net plan assets at beginning of year$16,791
 $14,347
 $2,578
 $2,293
Actual return on plan assets2,600
 1,061
 346
 128
Employer contributions341

347

64

50
Plan participants’ contributions
 
 53
 54
Gross benefits paid(1,125)
(1,051)
(309)
(280)
Acquisitions/divestitures(b)

 2,087
 
 333
Settlements(34)





Fair value of net plan assets at end of year$18,573
 $16,791
 $2,732
 $2,578

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
 Predecessor
 Pension Benefits 
Other
Postretirement Benefits
PHIJanuary 1, 2016 to March 23, 2016 January 1, 2016 to March 23, 2016
Change in benefit obligation:   
Net benefit obligation at beginning of the period$2,490
 $563
Service cost12
 1
Interest cost26
 6
Actuarial (gain) loss(30) (5)
Gross benefits paid(2) (1)
Net benefit obligation at end of the period$2,496
 $564
 Predecessor
 Pension Benefits 
Other
Postretirement Benefits
PHIJanuary 1, 2016 to March 23, 2016 January 1, 2016 to March 23, 2016
Change in plan assets:   
Fair value of net plan assets at beginning of the period$2,018
 $348
Employer and plan participant contributions4
 1
Gross benefits paid by plan(2) (1)
Fair value of net plan assets at end of the period$2,020
 $348
__________ 
(a)2016 amounts include PHI for the period of March 24, 2016 through December 31, 2016.
(b)Exelon recorded pension and OPEB obligations associated with its acquisition of Fitzpatrick on March 31, 2017. Effective March 23, 2016, Exelon became the sponsor of PHI's defined benefit pension and other postretirement benefit plans.
Exelon presents its benefit obligations and plan assets net on its balance sheetConsolidated Balance Sheets within the following line items:
 Pension BenefitsOPEB
2022202120222021
Other current liabilities$47 $20 $26 $26 
Pension obligations1,109 2,051 — — 
Non-pension postretirement benefit obligations— — 507 811 
Unfunded status (net benefit obligation less plan assets)$1,156 $2,071 $533 $837 
 Pension Benefits 
Other
Postretirement Benefits
Exelon2017 
2016(a)
 2017 
2016(a)
Other current liabilities$28
 $21
 $31
 $31
Pension obligations3,736

4,248




Non-pension postretirement benefit obligations
 
 2,093

1,848
Unfunded status (net benefit obligation less plan assets)$3,764

$4,269

$2,124

$1,879
__________ 
(a)Effective March 23, 2016, Exelon became the sponsor of PHI's defined benefit pension and other postretirement benefit plans, and assumed PHI's benefit plan obligations and related assets.
The funded status of the pension and other postretirement benefit obligations refers to the difference between plan assets and estimated obligations of the plan. The funded status changes over time due to several factors, including contribution levels, assumed discount rates and actual returns on plan assets.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following tables providetable provides the projected benefit obligations (PBO), accumulated benefit obligation (ABO),ABO and fair value of plan assets for all pension plans with a PBO oran ABO in excess of plan assets. Information for pension and OPEB plans with projected benefit obligations (PBO) and accumulated postretirement benefit obligation (APBO), respectively, in excess of plan assets has been disclosed in the Obligations and Plan Assets table above as all pension and OPEB plans are underfunded.
PBO in excess of plan assets   
 Exelon
 2017 2016
Projected benefit obligation$22,337
 $21,060
Fair value of net plan assets18,573
 16,791
ABO in excess of plan assets   
 Exelon
 2017 2016
Projected benefit obligation$22,337
 $21,060
Accumulated benefit obligation21,153
 19,930
Fair value of net plan assets18,573
 16,791
On a PBO basis, the Exelon plans were funded at 83% and 80% at December 31, 2017 and 2016, respectively. On an ABO basis, the Exelon plans were funded at 88% and 84% at December 31, 2017 and 2016, respectively. The ABO differs from the PBO in that the ABO includes no assumption about future compensation levels.
Exelon
ABO in Excess of Plan Assets20222021
ABO$10,108 $13,497 
Fair value of net plan assets9,427 12,165 
Components of Net Periodic Benefit Costs
The majority of the 20172022 pension benefit cost for the Exelon-sponsored plans is calculated using an expected long-term rate of return on plan assets of 7.00% and a discount rate of 4.04%3.24%. The majority of the 2017 other postretirement benefit2022 OPEB cost is calculated using an expected long-term rate of return on plan assets of 6.58%6.44% for funded plans and a discount rate of 4.04%3.20%.
A portion of the net periodic benefit cost for all plans is capitalized withinin the Consolidated Balance Sheets. The following tables presenttable presents the components of Exelon’s net periodic benefit costs, prior to capitalization, for the years ended December 31, 2017, 20162022, 2021, and 2015 and PHI's net periodic benefit costs, prior to capitalization, for the predecessor period2020.
Pension BenefitsOPEB
202220212020202220212020
Components of net periodic benefit cost:
Service cost$236 $294 $251 $41 $51 $56 
Interest cost439 406 476 76 69 93 
Expected return on assets(822)(843)(796)(99)(99)(101)
Amortization of:
Prior service cost (credit)(19)(25)(76)
Actuarial loss295 399 349 12 27 34 
Curtailment benefits— — — — — (1)
Settlement and other charges— — 
Net periodic benefit cost$150 $265 $289 $11 $24 $




221




Table of January 1, 2016 to March 23, 2016.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
 Pension Benefits 
Other
Postretirement Benefits
Exelon
2017(a)
 
2016(b)
 2015 
2017(a)
 
2016(b)
 2015
Components of net periodic benefit cost:           
Service cost$387

$354

$326

$106

$107

$119
Interest cost842

830

710

182

185

167
Expected return on assets(1,196) (1,141) (1,026) (162) (162) (151)
Amortization of:           
Prior service cost (credit)1
 14
 13
 (188) (185) (174)
Actuarial loss607
 554
 571
 61
 63
 80
Settlement and other charges(c)
3
 2
 2
 
 
 
Net periodic benefit cost$644
 $613
 $596
 $(1) $8
 $41
Cost Allocation to Exelon Subsidiaries
__________ 
(a)FitzPatrick net benefit costs are included for the period after acquisition.
(b)PHI net periodic benefit costs for the period prior to the merger are not included in the table above.
(c)2016 amount includes an additional termination benefit for PHI.
All Registrants account for their participation in Exelon’s pension and OPEB plans by applying multi-employer accounting. Exelon allocates costs related to its pension and OPEB plans to its subsidiaries based on both active and retired employee participation in each plan.
 Predecessor
 Pension Benefits Other
Postretirement Benefits
PHIJanuary 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015 January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
Components of net periodic benefit cost:       
Service cost$12
 $57
 $1
 $7
Interest cost26
 109
 6
 24
Expected return on assets(30) (140) (5) (22)
Amortization of:       
Prior service cost (credit)
 2
 (3) (13)
Actuarial loss14
 65
 2
 8
Net periodic benefit cost$22
 $93
 $1
 $4
The amounts below represent the Registrants' allocated pension and OPEB costs. For Exelon, the service cost component is included in Operating and maintenance expense and Property, plant, and equipment, net while the non-service cost components are included in Other, net and Regulatory assets. For the Utility Registrants, the service cost and non-service cost components are included in Operating and maintenance expense and Property, plant, and equipment, net in their consolidated financial statements.

For the Years Ended December 31,ExelonComEdPECOBGEPHIPepcoDPLACE
2022$161 $60 $(9)$44 $53 $$$12 
2021288 129 64 49 11 
2020296 114 64 70 15 14 
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Components of AOCI and Regulatory Assets
UnderExelon recognizes the authoritative guidance foroverfunded or underfunded status of defined benefit pension and OPEB plans as an asset or liability on its Consolidated Balance Sheets, with offsetting entries to AOCI and regulatory accounting, aassets (liabilities). A portion of current year actuarial gains and(gains) losses and prior service costs (credits) is capitalized withinin Exelon’s Consolidated Balance Sheets to reflect the expected regulatory recovery of these amounts, which would otherwise be recorded to AOCI. The following tables provide the components of AOCI and regulatory assets (liabilities) for Exelon for the years ended December 31, 2017, 20162022, 2021, and 20152020 for all plans combined andcombined. The tables include amounts related to Generation prior to the componentsseparation.
 Pension BenefitsOPEB
202220212020202220212020
Changes in plan assets and benefit obligations recognized in AOCI and regulatory assets (liabilities):
Current year actuarial (gain) loss$(226)$(700)$941 $(271)$(270)$22 
Amortization of actuarial loss(295)(598)(512)(12)(37)(49)
Separation of Constellation(2,631)— — (43)— — 
Current year prior service cost (credit)— — — — — (111)
Amortization of prior service (cost) credit(2)(3)(4)19 34 124 
Curtailments— — — — — 
Settlements— (27)(14)— (1)(1)
Total recognized in AOCI and regulatory assets (liabilities)$(3,154)$(1,328)$411 $(307)$(274)$(14)
Total recognized in AOCI$(2,719)$(747)$271 $(74)$(130)$
Total recognized in regulatory assets (liabilities)$(435)$(581)$140 $(233)$(144)$(20)
222




Table of PHI's predecessor AOCI and regulatory assets (liabilities) for the period January 1, 2016 to March 23, 2016.
 Pension Benefits 
Other
Postretirement Benefits
Exelon2017 
2016(a)
 2015 2017 
2016(a)
 2015
Changes in plan assets and benefit obligations recognized in AOCI and regulatory assets (liabilities):           
Current year actuarial (gain) loss$(222) $644
 $476
 $166
 $(101) $(194)
Amortization of actuarial loss(607) (554) (571) (61) (63) (80)
Current year prior service cost (credit)9
 (60) 
 
 
 (23)
Amortization of prior service (cost) credit(1) (14) (13) 188
 185
 174
Settlements(3) 
 (2) 
 
 
Acquisitions
 994
 
 
 94
 
Total recognized in AOCI and regulatory assets (liabilities)$(824)
$1,010
 $(110) $293

$115
 $(123)
            
Total recognized in AOCI$(401) $51
 $(64) $168
 $20
 $(63)
Total recognized in regulatory assets (liabilities)$(423) $959
 $(46) $125
 $95
 $(60)

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
 Predecessor
 Pension Benefits Other
Postretirement Benefits
PHIJanuary 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015 January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
Changes in plan assets and benefit
obligations recognized in AOCI and regulatory assets (liabilities):
       
Current year actuarial loss (gain)$
 $50
 $
 $(39)
Amortization of actuarial loss(14) (65) (2) (8)
Amortization of prior service (cost) credit
 (2) 3
 13
Total recognized in AOCI and regulatory assets (liabilities) $(14) $(17) $1
 $(34)
        
Total recognized in AOCI$(1) $(11) $
 $
Total recognized in regulatory assets (liabilities)$(13) $(6) $1
 $(34)
__________ 
(a)2016 amounts include PHI for the period of March 24, 2016 through December 31, 2016.
The following table provides the components of gross accumulated other comprehensive loss and regulatory assets (liabilities) for Exelon that have not been recognized as components of periodic benefit cost atas of December 31, 20172022 and 2016,2021, respectively, for all plans combined:
 Pension BenefitsOPEB
2022202120222021
Prior service cost (credit)$19 $32 $(55)$(111)
Actuarial loss (gain)3,611 6,752 (133)230 
Total$3,630 $6,784 $(188)$119 
Total included in AOCI$873 $3,592 $(21)$53 
Total included in regulatory assets (liabilities)$2,757 $3,192 $(167)$66 
 Exelon Exelon
 Pension Benefits 
Other
Postretirement Benefits
 2017 
2016(a)
 2017 
2016(a)
Prior service (credit) cost$(24)
$(31) $(522) $(710)
Actuarial loss7,556
 8,387
 829
 724
Total (a)
$7,532
 $8,356
 $307
 $14
        
Total included in AOCI$3,896
 $4,297
 $125
 $(42)
Total included in regulatory assets (liabilities)$3,636
 $4,059
 $182
 $56
__________
(a)Effective March 23, 2016, Exelon became the sponsor of PHI's defined benefit pension and other postretirement benefit plans, and assumed PHI's benefit plan obligations and related assets.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table provides the impact to Exelon’s AOCI and regulatory assets (liabilities) at December 31, 2017 as a result of the components of periodic benefit costs that are expected to be amortized in 2018. These estimates are subject to the completion of an actuarial valuation of Exelon’s pension and other postretirement benefit obligations, which will reflect actual census data as of January 1, 2018 and actual claims activity as of December 31, 2017. The valuation is expected to be completed in the first quarter of 2018 for the majority of the benefit plans.
 Pension Benefits 
Other
Postretirement Benefits
Prior service cost (credit)$2
 $(186)
Actuarial loss640
 66
Total (a)
$642

$(120)
__________
(a)Of the $642 million related to pension benefits at December 31, 2017, $317 million and $325 million are expected to be amortized from AOCI and regulatory assets in 2018, respectively. Of the $(120) million related to other postretirement benefits at December 31, 2017, $(65) million and $(55) million are expected to be amortized from AOCI and regulatory assets (liabilities) in 2018, respectively.
Average Remaining Service Period
For pension benefits, Exelon amortizes its unrecognized prior service costs (credits) and certain actuarial gains and(gains) losses, as applicable, based on participants’ average remaining service periods. The average remaining service period of Exelon's defined benefit pension plan participants was 11.8 years, 11.9 years and 11.9 years for the years ended December 31, 2017, 2016 and 2015, respectively. For the predecessor period, the average remaining service period of PHI's defined benefit plans was approximately 11 years for the year ended December 31, 2015.
For other postretirement benefits,OPEB, Exelon amortizes its unrecognized prior service costs (credits) over participants’ average remaining service period to benefit eligibility age and amortizes certain actuarial gains and(gains) losses over participants’ average remaining service period to expected retirement. The resulting average remaining service period of postretirement benefit plan participants related to benefit eligibility age was 8.2 years, 9.0 yearsperiods for pension and 10.8 years for the years ended December 31, 2017, 2016 and 2015, respectively. The average remaining service period of postretirement benefit plan participants related to expected retirement was 9.6 years, 9.7 years and 9.7 years for the years ended December 31, 2017, 2016 and 2015, respectively. For the predecessor period, the average remaining service period of PHI's other postretirement benefit plans was approximately 11 years for the year ended December 31, 2015.OPEB were as follows:
202220212020
Pension plans12.5 12.4 12.3 
OPEB plans:
Benefit Eligibility Age7.9 7.6 9.0 
Expected Retirement9.1 8.8 10.2 
Assumptions
The measurement of the plan obligations and costs of providing benefits under Exelon’s defined benefit and other postretirementOPEB plans involves various factors, including the development of valuation assumptions and inputs and accounting policy elections. The measurement of benefit obligations and costs is impacted by several assumptions and inputs, including the discount rate applied to benefit obligations, the long-term EROA, Exelon’s expected level of contributions to the plans, the long-term expected investment rate credited to employees participating in cash balance plans and the anticipated rate of increase of health care costs. Additionally, assumptions related to plan participants include the incidence of mortality, the expected remaining service period, the level of compensation and rate of compensation increases, employee age and length of service,as shown below, among other factors. When developing the required assumptions, Exelon considers historical information as well as future expectations.
Expected Rate of Return. In selectingdetermining the EROA, Exelon considers historical economic indicators (including inflation and GDP growth) that impact asset returns, as well as expectations regarding future long-term capital market performance, weighted by Exelon’s target asset class allocations.

Combined NotesMortality. The mortality assumption is composed of a base table that represents the current expectation of life expectancy of the population adjusted by an improvement scale that attempts to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Mortality. For the December 31, 2014 actuarial valuation, Exelon changed its assumption of mortality to reflect more recent expectations ofanticipate future improvements in life expectancy. The change was supported through completion of an experience studyFor the years endedDecember 31, 2022 and supplemental analyses performed by Exelon's actuaries. There were no changes to the2021, Exelon’s mortality assumption in 2015, 2016 or 2017.utilizes the SOA 2019 base table (Pri-2012) and MP-2021 improvement scale adjusted to use Proxy SSA ultimate improvement rates.
TheFor Exelon, the following assumptions were used to determine the benefit obligations for the plans atas of December 31, 2017, 20162022 and 2015.2021. Assumptions used to determine year-end benefit obligations are the assumptions used to estimate the subsequent year’s net periodic benefit costs.
223



 Pension Benefits Other Postretirement Benefits 
Exelon2017 2016 2015 2017 2016 2015 
Discount rate3.62%
(a)  
4.04%
(b)  
4.29%
(c) 
3.61%
(a)  
4.04%
(b)  
4.29%
(c) 
Rate of compensation increase    
(d) 
    
(e)  
 
(e)  
    
(d)  
    
(e)  
 
(e)  
Mortality table
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)

  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
 RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
 
Health care cost trend on covered chargesN/A  N/A  N/A 5.00% with ultimate trend of 5.00% in 2017
  
  
  
  
  
  
  
5.00% with
ultimate
trend of
5.00% in
2017
  
  
  
  
  
  
  
5.50%
decreasing
to
ultimate
trend of
5.00% in
2017
 

 Predecessor Predecessor
 Pension Benefits Other Postretirement Benefits
PHI
January 1, 2016 to March 23, 2016(f)
 2015 
January 1, 2016 to March 23, 2016(e)
 2015
Discount rate  4.65%/4.55%
(g) 
  4.55%
Rate of compensation
increase
  5.00%   5.00%
Mortality table  RP-2014 table with improvement scale MP-2015   RP-2014 table with improvement scale MP-2015
Health care cost trend on covered charges  N/A   6.33% pre-65 and 5.40% post-65
decreasing to ultimate trend of
5.00% in 2020
__________
(a)The discount rates above represent the blended rates used to determine the majority of Exelon’s pension and other postretirement benefits obligations as of December 31, 2017. Certain benefit plans used individual rates ranging from 3.49% - 3.65% and 3.57% - 3.68% for pension and other postretirement plans, respectively.
(b)The discount rates above represent the blended rates used to determine the majority of Exelon’s pension and other postretirement benefits obligations as of December 31, 2016. Certain benefit plans used individual rates ranging from 3.66% - 4.11% and 4.00% - 4.17% for pension and other postretirement plans, respectively.
(c)The discount rates above represent the blended rates used to determine the majority of Exelon’s pension and other postretirement benefits obligations as of December 31, 2015. Certain benefit plans used individual rates ranging from 3.68% - 4.14% and 4.32% - 4.43% for pension and other postretirement plans, respectively.
(d)3.25% through 2019 and 3.75% thereafter.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
(e)The legacy Exelon, CEG and CENG pension and other postretirement plans used a rate of compensation increase of 3.25% through 2019 and 3.75% thereafter, while the legacy PHI pension and other postretirement plans used a weighted-average rate of compensation increase of 5% for all periods.
(f)Obligation was not remeasured during this period.
(g)The discount rate for the qualified and non-qualified pension plans was 4.65% and 4.55%, respectively.
 Pension BenefitsOPEB
2022 2021 2022 2021
Discount rate(a)
5.53 %2.92 %5.51 %2.88 %
Investment crediting rate(b) 
5.07 %

3.75 %N/AN/A
Rate of compensation increase3.75 %3.75 %3.75 %3.75 %
Mortality tablePri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted) Pri-2012 table with MP- 2021 improvement scale (adjusted)
Health care cost trend on covered chargesN/AN/AInitial and ultimate rate of 5.00%

Initial and ultimate trend of 5.00%
__________
(a)The discount rates above represent the blended rates used to determine the majority of Exelon’s pension and OPEB obligations. Certain benefit plans used individual rates, which range from 5.46% - 5.60% and 5.49% - 5.51% for pension and OPEB plans, respectively, as of December 31, 2022 and 2.55% - 3.02% and 2.84% - 2.92% for pension and OPEB plans, respectively, as of December 31, 2021.
(b)The investment crediting rate above represents a weighted average rate.

The following assumptions were used to determine the net periodic benefit costscost for the plansExelon for the years ended December 31, 2017, 20162022, 2021 and 2015, as well as2020: 
 Pension Benefits OPEB
2022 2021 2020 2022 2021 2020
Discount rate(a)
3.24 %2.58 %3.34 %3.20 %2.51 %3.31 %
Investment crediting rate(b)
3.75 %3.72 %3.82 %N/A N/A N/A
Expected return on plan assets(c) 
7.00 %7.00 %7.00 %6.44 %6.46 %6.69 %
Rate of compensation increase3.75 %

3.75 %

3.75 % 3.75 % 3.75 % 3.75 %
Mortality tablePri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP - 2020 improvement scale (adjusted)Pri-2012 table with MP - 2019 improvement scale (adjusted)Pri-2012 table with MP- 2021 improvement scale (adjusted)Pri-2012 table with MP - 2020 improvement scale (adjusted)Pri-2012 table with MP - 2019 improvement scale (adjusted)
Health care cost trend on covered chargesN/AN/AN/A
Initial and ultimate rate
of 5.00%
Initial and ultimate rate of 5.00%Initial and ultimate rate of 5.00%
__________
(a)The discount rates above represent the blended rates used to establish the majority of Exelon’s pension and OPEB costs. Certain benefit plans used individual rates, which range from 2.55%-3.24% and 2.84%-3.20% for pension and OPEB plans, respectively, for the year ended December 31, 2022; 2.11%-2.73% and 2.45%-2.63% for pension and OPEB plans; respectively, for the year ended December 31, 2021; and 3.02%-3.44% and 3.27%-3.40% for pension and OPEB plans, respectively, for the year ended December 31, 2020.
(b)The investment crediting rate above represents a weighted average rate.
(c)Not applicable to pension and OPEB plans that do not have plan assets.
Contributions
Exelon allocates contributions related to its legacy Exelon pension and OPEB plans to its subsidiaries based on accounting cost. For legacy CEG, CENG, FitzPatrick, and PHI predecessor period Januaryplans, pension and OPEB contributions are allocated to the subsidiaries based on employee participation (both active and retired). For Exelon, in connection with the separation, additional qualified pension contributions of $207 million and $33 million were completed on February 1, 20162022 and March 2, 2022, respectively. The following tables provide contributions to March 23, 2016:the pension and OPEB plans:
224



 Pension Benefits Other Postretirement Benefits 
Exelon2017 2016 2015 2017 2016 2015 
Discount rate4.04%
(a) 
4.29%
(b) 
3.94%
(c)  
4.04%
(a) 
4.29%
(b) 
3.92%
(c)  
Expected return on plan assets7.00%
(d) 
7.00%
(d) 
7.00%
(d) 
6.58%
(d) 
6.71%
(d) 
6.50%
(d) 
Rate of compensation increase    

(e) 
 
 

(e)  
 
(e) 
    

(e)  
 

(e) 
 
 

(e) 
 
Mortality tableRP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
RP-2000 table projected to 2012 with improvement scale AA, with Scale BB-2D improvements (adjusted)
  
  
  
  
  
  
  
Health care cost trend on covered chargesN/A  N/A  N/A  
5.00%
decreasing
to
ultimate
trend of
5.00% in
2017
  
  
  
  
  
  
  
5.50%
decreasing
to
ultimate
trend of
5.00% in
2017
  
  
  
  
  
  
  
6.00%
decreasing
to
ultimate
trend of
5.00% in
2017
  
  
  
  
  
  
  

 Predecessor Predecessor
 Pension Benefits Other Postretirement Benefits
PHIJanuary 1, 2016 to March 23, 2016 2015 January 1, 2016 to March 23, 2016 2015
Discount rate4.65%/4.55%
(f) 
4.20% 4.55% 4.15%
Expected return on plan assets(g)
6.50% 6.50% 6.75% 6.75%
Rate of compensation
increase
5.00% 5.00% 5.00% 5.00%
Mortality table
RP-2014 table with improvement scale MP-2015

 RP-2014 table with improvement scale MP-2014 RP-2014 table with improvement scale MP-2015 RP-2014 table with improvement scale MP-2014
Health care cost trend on covered chargesN/A N/A 
6.33% pre-65 and 5.40% post-65
decreasing to ultimate trend of
5.00% in 2020

 6.67% pre-65 and 5.50% post-65
decreasing to ultimate trend of
5.00% in 2020
__________
(a)The discount rates above represent the blended rates used to establish the majority of Exelon’s pension and other postretirement benefits costs for the year ended December 31, 2017. Certain benefit plans used individual rates ranging from 3.66%-4.11% and 4.00%-4.17% for pension and other postretirement plans, respectively.
(b)The discount rates above represent the blended rates used to establish the majority of Exelon's pension and other postretirement benefits costs for the year ended December 31, 2016. Certain benefit plans used individual rates ranging from 3.68%-4.14% and 4.32%-4.43% for pension and other postretirement plans, respectively.
(c)The discount rates above represent the blended rates used to establish the majority of Exelon’s pension and other postretirement benefits costs for the year ended December 31, 2015. Certain benefit plans used the individual rates ranging from 3.29%-3.82% and 3.99%-4.06% for pension and other postretirement plans, respectively.
(d)Not applicable to pension and other postretirement benefit plans that do not have plan assets.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


(e)The legacy Exelon, CEG and CENG pension and other postretirement plans used a rate of compensation increase of 3.25% through 2019 and 3.75% thereafter, while the legacy PHI pension and other postretirement plans used a weighted-average rate of compensation increase of 5% for all periods.
(f)The discount rate for the qualified and non-qualified pension plans was 4.65% and 4.55%, respectively.
(g)Expected return on other postretirement benefit plan assets is pre-tax.
Assumed health care cost trend rates impact the other postretirement benefit plan costs reported for Exelon's participant populations with plan designs that do not have a cap on cost growth. A one percentage point change in assumed health care cost trend rates would have the following effects:
Note 14 — Retirement Benefits
Effect of a one percentage point increase in assumed health care cost trend: 
on 2017 total service and interest cost components$9
on postretirement benefit obligation at December 31, 2017125
Effect of a one percentage point decrease in assumed health care cost trend: 
on 2017 total service and interest cost components(8)
on postretirement benefit obligation at December 31, 2017(113)
 Pension BenefitsOPEB
 2022202120202022 2021 2020
Exelon$570 $343 $306 $42 $63 $40 
ComEd176 174 143 22 
PECO15 17 18 — 
BGE48 57 56 20 24 22 
PHI69 39 30 
Pepco
DPL— — — — 
ACE— — — 
Contributions
The following tables provide contributions to the pension and other postretirement benefit plans:
 Pension Benefits Other Postretirement Benefits
 
2017(a)
 
2016(a)
 
2015(a)
 2017 2016 2015
Exelon$341

$347

$462

$64

$50

$40
Generation137
 140
 231
 11
 12
 14
ComEd36
 33
 143
 5
 5
 7
PECO24
 30
 40
 
 
 
BGE39
 31
 1
 14
 18
 16
BSC(b)
38
 39
 47
 2
 3
 3
Pepco62
 24
 
 10
 8
 2
DPL
 22
 
 2
 
 
ACE
 15
 
 20
 2
 3
PHISCO (c)
5
 17
 
 
 2
 
 Pension Benefits Other Postretirement Benefits
 Successor  Predecessor Successor  Predecessor
 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI$67
 $74
  $4
 $
 $32
 $12
  $
 $5
__________
(a)Exelon's and Generation's pension contributions include $21 million, $25 million and $36 million related to the legacy CENG plans that was funded by CENG as provided in an Employee Matters Agreement (EMA) between Exelon and CENG for the years ended December 31, 2017, 2016 and 2015, respectively.
(b)Includes $4 million, $6 million, and $5 million of pension contributions funded by Exelon Corporate, for the years ended December 31, 2017, 2016, and 2015, respectively.
(c)PHISCO’s pension contributions for the year ended December 31, 2016 include $4 million of contributions made prior to the closing of Exelon’s merger with PHI on March 23, 2016.
Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the Pension Protection Act of 2006 (the Act),

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

management of the pension obligation, and regulatory implications. The Act requires the attainment of certain funding levels to avoid benefit restrictions (such as an inability to pay lump sums or to accrue benefits prospectively), and at-risk status (which triggers higher minimum contribution requirements and participant notification). The projected contributions below reflect a funding strategy to make annual contributions with the objective of contributing the greater of (1) $300 million (which has been updated for the inclusion of PHI) until the qualified plans are fullyachieving 100% funded status on an ABO basis and (2) the minimum amounts under ERISA to avoid benefit restrictions and at-risk status.over time. This level funding strategy helps minimize volatility of future period required pension contributions. Based on this funding strategy and current market conditions, which are subject to change, Exelon’s estimated annual qualified pension contributions will be approximately $20 million in 2023. Unlike the qualified pension plans, Exelon’s non-qualified pension plans are not funded, given that they are not subject to statutory minimum contribution requirements.
While other postretirementOPEB plans are also not subject to statutory minimum contribution requirements, Exelon does fund certain of its plans. For Exelon's funded OPEB plans, contributions generally equal accounting costs, however, Exelon’s management has historically considered several factors in determining the level of contributions to its other postretirement benefitOPEB plans, including liabilities management, levels of benefit claims paid, and regulatory implications (amounts deemed prudent to meet regulatory expectations and best assure continued rate recovery). The amounts below include benefit payments related to unfunded plans.
The following table provides all registrants'Registrants' planned contributions to the qualified pension plans, planned benefit payments to non-qualified pension plans, and planned contributions to other postretirementOPEB plans in 2018:2023:
Qualified Pension PlansNon-Qualified Pension PlansOPEB
Exelon$20 $48 $47 
ComEd20 19 
PECO— — 
BGE— 15 
PHI— 11 
Pepco— 11 
DPL— — — 
ACE— — — 
225





Qualified Pension Plans
Non-Qualified Pension Plans
Other
Postretirement
Benefits
Exelon$301

$30

$42
Generation119

11

13
ComEd38

2

3
PECO17

1


BGE41

1

16
BSC36

7

1
PHI50

8

9
Pepco4

2

8
DPL

1


ACE6




PHISCO40

5

1

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
Estimated Future Benefit Payments
Estimated future benefit payments to participants in all of the pension plans and postretirement benefit plans atas of December 31, 20172022 were:
Pension BenefitsOPEB
2023$805 $152 
2024775 152 
2025789 152 
2026790 152 
2027798 153 
2028 through 20323,983 744 
Total estimated future benefits payments through 2032$7,940 $1,505 
 
Pension
Benefits
 
Other
Postretirement
Benefits
2018$1,166
 $256
20191,165
 262
20201,210
 270
20211,236
 276
20221,265
 284
2023 through 20276,671
 1,509
Total estimated future benefit payments through 2027$12,713

$2,857
Allocation to Exelon Subsidiaries
All registrants account for their participation in Exelon’s pension and other postretirement benefit plans by applying multi-employer accounting. Employee-related assets and liabilities, including both pension and postretirement liabilities, for the legacy Exelon plans were allocated by Exelon to its subsidiaries based on the number of active employees as of January 1, 2001 as part of Exelon’s corporate restructuring. The obligation for Generation, ComEd and PECO reflects the initial allocation and the cumulative costs incurred and contributions made since January 1, 2001. Historically, Exelon has allocated the components of pension and other postretirement costs to the subsidiaries in the legacy Exelon plans based upon several factors, including the measures of active employee participation in each plan. Pension and other postretirement benefit contributions were allocated to legacy Exelon subsidiaries in proportion to active service costs recognized and total costs recognized, respectively. Beginning in 2015, Exelon began allocating costs related to its legacy Exelon pension and other postretirement benefit plans to its subsidiaries based on both active and retired employee participation and contributions are allocated based on accounting cost. The impact of this allocation methodology change was not material to any Registrant. For legacy CEG, legacy CENG, FitzPatrick, and legacy PHI plans, components of pension and other postretirement benefit costs and contributions have been, and will continue to be, allocated to the subsidiaries based on employee participation (both active and retired).
The amounts below were included in capital expenditures and operating and maintenance expense for the years ended December 31, 2017, 2016 and 2015, respectively, for each of the entities allocated portion of the pension and other postretirement benefit plan costs. These amounts include the recognized contractual termination benefit charges, curtailment gains, and settlement charges:
For the Years Ended December 31,Exelon 
Generation(a)
 ComEd PECO BGE 
BSC(b)
 
Pepco(c)
 
DPL(c)
 
ACE(c)
 
PHISCO(c)(d)
2017$643
 $227

$176

$29
 $64
 $53
 $25
 $13
 $13
 $43
2016621
 218

166

33
 68
 48
 31
 18
 15
 47
2015637
 269

206

39
 66
 57
 30
 15
 15
 37

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 Successor  Predecessor
PHIFor the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
Pension and Other Postretirement Benefit Costs$94
 $88
  $23
 $97
__________
(a)FitzPatrick net benefit costs are included for the period after acquisition.
(b)These amounts primarily represent amounts billed to Exelon’s subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO, BGE, PHI, Pepco, DPL or ACE amounts above.
(c)
Pepco's, DPL's, ACE's and PHISCO's pension and postretirement benefit costs for the year ended December 31, 2016 include $7 million, $4 million, $3 million and $9 million, respectively, of costs incurred prior to the closing of Exelon’s merger with PHI on March 23, 2016.
(d)These amounts represent amounts billed to Pepco, DPL and ACE through intercompany allocations. These amounts are not included in Pepco, DPL or ACE amounts above.
Plan Assets
Investment Strategy. On a regular basis, Exelon evaluates its investment strategy to ensure that plan assets will be sufficient to pay plan benefits when due. As part of this ongoing evaluation, Exelon may make changes to its targeted asset allocation and investment strategy.
Exelon has developed and implemented a liability hedging investment strategy for its qualified pension plans that has reduced the volatility of its pension assets relative to its pension liabilities. Exelon is likely to continue to gradually increase the liability hedging portfolio as the funded status of its plans improves. The overall objective is to achieve attractive risk-adjusted returns that will balance the liquidity requirements of the plans’ liabilities while striving to minimize the risk of significant losses. Trust assets for Exelon’s other postretirementOPEB plans are managed in a diversified investment strategy that prioritizes maximizing liquidity and returns while minimizing asset volatility.
Actual asset returns have an impact on the costs reported for the Exelon-sponsored pension and other postretirement benefitOPEB plans. The actual asset returns across Exelon’s pension and other postretirement benefitOPEB plans for the year ended December 31, 20172022 were 16.10%(18.69)% and 14.70%(11.36)%, respectively, compared to an expected long-term return assumption of 7.00% and 6.58%6.44%, respectively.
Exelon used an EROA of 7.00% and 6.60%6.50% to estimate its 20182023 pension and other postretirement benefitOPEB costs, respectively.
Exelon’s pension and other postretirement benefitOPEB plan target asset allocations atas of December 31, 20172022 and 2016 asset allocations2021 were as follows:
Pension Plans
December 31, 2022December 31, 2021
Asset CategoryPension BenefitsOPEBPension BenefitsOPEB
Equity securities28 %44 %35 %44 %
Fixed income securities44 %41 %41 %41 %
Alternative investments(a)
28 %15 %24 %15 %
Total100 %100 %100 %100 %
__________
   Exelon
   
Percentage of Plan Assets
at December 31,
Asset CategoryTarget Allocation 2017 2016
Equity securities35% 35% 33%
Fixed income securities38% 39
 39
Alternative investments(a)
27% 26
 28
Total  100% 100%
(a)Alternative investments include private equity, hedge funds, real estate, and private credit.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Other Postretirement Benefit Plans
   Exelon
   
Percentage of Plan Assets
at December 31,
Asset CategoryTarget Allocation 2017 2016
Equity securities46% 47% 47%
Fixed income securities28% 28
 29
Alternative investments(a)
26% 25
 24
Total  100% 100%
__________
(a)Alternative investments include private equity, hedge funds, real estate, and private credit.
Concentrations of Credit Risk. Exelon evaluated its pension and other postretirement benefitOPEB plans’ asset portfolios for the existence of significant concentrations of credit risk as of December 31, 2017.2022. Types of concentrations that were evaluated include, but are not limited to, investment concentrations in a single entity, type of industry, foreign country, and individual fund. As of December 31, 2017,2022, there were no significant concentrations (defined as greater than 10% of plan assets) of risk in Exelon’s pension and other postretirement benefitOPEB plan assets.

226




Table of Contents
Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 14 — Retirement Benefits
Fair Value Measurements
The following tables present pension and other postretirement benefitOPEB plan assets measured and recorded at fair value on the Registrants'in Exelon's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy atas of December 31, 20172022 and 2016:2021:
Exelon
December 31, 2022December 31, 2021
Level 1Level 2Level 3Not subject to levelingTotalLevel 1Level 2Level 3Not subject to levelingTotal
Pension plan assets(a)
Cash and cash equivalents$200 $— $— $— $200 $260 $91 $— $— $351 
Equities(b)
1,448 — — 782 2,230 2,699 — 1,273 3,974 
Fixed income:
U.S. Treasury and agencies986 178 — — 1,164 1,002 176 — — 1,178 
State and municipal debt— 44 — — 44 — 47 — — 47 
Corporate debt(c)
— 1,975 12 — 1,987 — 2,523 325 — 2,848 
Other(b)
— 63 — 744 807 43 161 12 301 517 
Fixed income subtotal986 2,260 12 744 4,002 1,045 2,907 337 301 4,590 
Private equity— — — 1,169 1,169 — — — 1,124 1,124 
Hedge funds— — — 760 760 — — — 774 774 
Real estate— — — 821 821 — — — 760 760 
Private credit— — — 658 658 — — 130 603 733 
Pension plan assets subtotal2,634 2,260 12 4,934 9,840 4,004 2,998 469 4,835 12,306 
OPEB plan assets(a)
Cash and cash equivalents39 — — — 39 54 41 — — 95 
Equities305 — 273 579 387 — 324 713 
Fixed income:
U.S. Treasury and agencies17 45 — — 62 14 44 — — 58 
State and municipal debt— — — — — — 
Corporate debt(c)
— 44 — — 44 — 74 — — 74 
Other161 — 187 353 223 — 136 363 
Fixed income subtotal178 102 — 187 467 237 129 — 136 502 
Hedge funds— — — 120 120 — — — 175 175 
Real estate— — — 106 106 — — — 86 86 
Private credit— — — 39 39 — — — 84 84 
OPEB plan assets subtotal522 103 — 725 1,350 678 172 — 805 1,655 
Total pension and OPEB plan assets(d)
$3,156 $2,363 $12 $5,659 $11,190 $4,682 $3,170 $469 $5,640 $13,961 
227




December 31, 2017(a)(b)
Level 1 Level 2 Level 3 Not subject to leveling Total
Pension plan assets         
Cash equivalents$585
 $
 $
 $
 $585
Equities(c)
3,565
 
 2
 3,077
 6,644
Fixed income:




   
U.S. Treasury and agencies1,150
 159
 
 
 1,309
State and municipal debt
 64
 
 
 64
Corporate debt
 3,931
 232
 
 4,163
Other(c)

 447
 
 756
 1,203
Fixed income subtotal1,150

4,601

232
 756
 6,739
Private equity
 
 
 1,034
 1,034
Hedge funds
 
 
 1,770
 1,770
Real estate
 
 
 884
 884
Private credit
 
 
 919
 919
Pension plan assets subtotal$5,300

$4,601

$234
 $8,440
 $18,575

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
December 31, 2017(a)(b)
Level 1 Level 2 Level 3 Not subject to leveling Total
Other postretirement benefit plan assets         
Cash equivalents$29
 $
 $
 $
 $29
Equities523
 2
 
 764
 1,289
Fixed income:




   
U.S. Treasury and agencies13
 56
 
 
 69
State and municipal debt
 136
 
 
 136
Corporate debt
 47
 
 
 47
Other225
 71
 
 185
 481
Fixed income subtotal238

310



185
 733
Hedge funds
 
 
 430
 430
Real estate
 
 
 124
 124
Private credit
 
 
 123
 123
Other postretirement benefit plan assets subtotal$790

$312

$
 $1,626

$2,728
Total pension and other postretirement benefit plan assets(d)
$6,090
 $4,913
 $234
 $10,066
 $21,303
December 31, 2016(a)(e)
Level 1 Level 2 Level 3 Not subject to leveling Total
Pension plan assets         
Cash equivalents$325
 $
 $
 $
 $325
Equities(c)
3,144
 
 2
 2,535
 5,681
Fixed income:

 

 

   

U.S. Treasury and agencies1,008
 192
 
 
 1,200
State and municipal debt
 64
 
 
 64
Corporate debt
 3,641
 206
 
 3,847
Other(c)

 340
 
 748
 1,088
Fixed income subtotal1,008

4,237

206
 748
 6,199
Private equity
 
 
 991
 991
Hedge funds
 
 
 1,962
 1,962
Real estate
 
 
 828
 828
Private credit
 
 
 833
 833
Pension plan assets subtotal$4,477

$4,237

$208
 $7,897

$16,819

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

December 31, 2016(a)(e)
Level 1 Level 2 Level 3 Not subject to leveling Total
Other postretirement benefit plan assets         
Cash equivalents$24
 $
 $
 $
 $24
Equities547
 2
 
 644
 1,193
Fixed income:




   
U.S. Treasury and agencies9
 59
 
 
 68
State and municipal debt
 134
 
 
 134
Corporate debt
 43
 
 
 43
Other256
 60
 
 131
 447
Fixed income subtotal265

296


 131
 692
Hedge funds
 
 
 445
 445
Real estate
 
 
 117
 117
Private credit
 
 
 107
 107
Other postretirement benefit plan assets subtotal$836

$298

$
 $1,444
 $2,578
Total pension and other postretirement benefit plan assets(d)
$5,313
 $4,535
 $208
 $9,341
 $19,397
__________
(a)See Note 11—Fair Value of Financial Assets and Liabilities for a description of levels within the fair value hierarchy.
(b)Effective March 31, 2017, Exelon became sponsor of FitzPatrick's defined benefit pension and other postretirement benefit plans, and assumed FitzPatrick's benefit plan obligations.
(c)Includes derivative instruments of $6 million and $1 million, which have a total notional amount of $3,606 million and $2,918 million at December 31, 2017 and 2016, respectively. The notional principal amounts for these instruments provide one measure of the transaction volume outstanding as of the fiscal years ended and do not represent the amount of the company’s exposure to credit or market loss.
(d)Excludes net assets of $2 million and net liabilities of $28 million at December 31, 2017 and 2016, respectively, which are required to reconcile to the fair value of net plan assets. These items consist primarily of receivables related to pending securities sales, interest and dividends receivable, and payables related to pending securities purchases.
(e)Effective March 23, 2016, Exelon became sponsor of PHI's defined benefit pension and other postretirement benefit plans, and assumed PHI's benefit plan obligations and related assets.
(a)See Note 17—Fair Value of Financial Assets and Liabilities for a description of levels within the fair value hierarchy.
(b)Includes derivative instruments of $11 million and $(2) million for the years ended December 31, 2022 and 2021, respectively, which have total notional amounts of $3,434 million and $3,481 million as of December 31, 2022 and 2021, respectively. The notional principal amounts for these instruments provide one measure of the transaction volume outstanding as of the fiscal years ended and do not represent the amount of the company’s exposure to credit or market loss.
(c)Includes investments in equities sold short held in investment vehicles primarily to hedge the equity option component of its convertible debt. Pension equities sold short totaled $(44) million as of December 31, 2021. OPEB equities sold short totaled $(18) million as of December 31, 2021. There were no individually held investments sold short in 2022.
(d)Excludes net liabilities of $318 million and $131 million as of December 31, 2022 and 2021, respectively, which include certain derivative assets that have notional amounts of $69 million and $127 million as of December 31, 2022 and 2021, respectively. These items are required to reconcile to the fair value of net plan assets and consist primarily of receivables or payables related to pending securities sales and purchases, interest and dividends receivable, and repurchase agreement obligations. The repurchase agreements generally have maturities ranging from 3-6 months.

The following table presents the reconciliation of Level 3 assets and liabilities for Exelon measured at fair value for pension and other postretirement benefitOPEB plans for the years ended December 31, 20172022 and 2016:2021:
Exelon
Fixed IncomeEquitiesPrivate CreditTotal
Pension Assets
Balance as of January 1, 2022$337 $$130 $469 
Actual return on plan assets:
Relating to assets still held as of the
reporting date
(9)— (15)(24)
Relating to assets sold during the
period
(19)— 13 (6)
Purchases, sales and settlements:
Purchases— — 
Settlements(a)
(1)— (52)(53)
Transfers out of Level 3(b)
(296)(2)(83)(381)
Balance as of December 31, 2022$12 $— $— $12 
Fixed IncomeEquitiesPrivate CreditTotal
Pension Assets
Balance as of January 1, 2021$348 $$136 $485 
Actual return on plan assets:
Relating to assets still held as of the
reporting date
(12)— 18 
Purchases, sales and settlements:
Purchases10 — 15 
Settlements(a)
(13)— (29)(42)
Transfers into Level 3— 
Balance as of December 31, 2021$337 $$130 $469 
__________
(a)Represents cash settlements only.
(b)In 2022, transfers relate to changes in investment structure for certain investments due to the separation.

Valuation Techniques Used to Determine Fair Value
The techniques used to fair value the pension and OPEB assets invested in cash equivalents are the same as the valuation techniques used to determine the fair value of financial assets. See Cash Equivalents in Note 17 - Fair Value of Financial Assets and Liabilities for further information. Below outlines the techniques used to fair value the pension and OPEB assets invested in equities, fixed income, derivatives, private credit, private equity, and real estate investments.
228




 Fixed Income Equities Total
Pension Assets     
Balance as of January 1, 2017$206

$2
 $208
Actual return on plan assets:


 

Relating to assets sold during the period11


 11
Purchases, sales and settlements:


 

Purchases31


 31
Sales(16)

 (16)
Settlements(a)



 
Balance as of December 31, 2017$232

$2
 $234

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 14 — Retirement Benefits
 Fixed income Equities Total
Pension Assets     
Balance as of January 1, 2016$165

$2
 $167
Actual return on plan assets:


 

Relating to assets still held at the
reporting date
(2)

 (2)
Purchases, sales and settlements:


 

Purchases69


 69
Sales(14)

 (14)
      Settlements(a)
(12)

 (12)
Balance as of December 31, 2016$206

$2
 $208
__________
(a)Represents cash settlements only.
There were no significant transfers between Level 1 and Level 2 during the year ended December 31, 2017 for the pension and other postretirement benefit plan assets.
Valuation Techniques Used to Determine Fair Value
Cash equivalents. Investments with original maturities of three months or less when purchased, including certain short-term fixed income securities and money market funds, are considered cash equivalents. The fair values are based on observable market prices and, therefore, are included in the recurring fair value measurements hierarchy as Level 1.
Equities. EquitiesEquities. These investments consist of individually held equity securities, equity mutual funds, and equity commingled funds in domestic and foreign markets. With respect to individually held equity securities, the trustees obtain prices from pricing services, whose prices are generally obtained from direct feeds from market exchanges, which Exelon is able to independently corroborate. Equity securities held individually, including real estate investment trusts, rights, and warrants, are primarily traded on exchanges that contain only actively traded securities due to the volume trading requirements imposed by these exchanges. EquityThe equity securities that are held directly by the trust funds are valued based on quoted prices in active markets and are categorized as Level 1. Certain equity securities have been categorized as Level 2 because they are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities. Certain private placement equity securities are categorized as Level 3 because they are not publicly traded and are priced using significant unobservable inputs.
Equity commingled funds and mutual funds are maintained by investment companies, and certainfund investments are held in accordance with a stated set of fund objectives, which are consistent with the plans’ overall investment strategy.objectives. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For equity commingled funds and mutual funds which are not publicly quoted, the fund administrators value the funds using the NAV per fund share, derived from the quoted prices in active markets ofon the underlying securities and are not classified within the fair value hierarchy. These investments can typically can be redeemed monthly or more frequently, with 30 or less days of notice and without further restrictions.
Fixed income.income. For fixed income securities, which consist primarily of corporate debt securities, U.S. government securities, foreign government securities, municipal bonds, asset and mortgage-backed securities, commingled funds, mutual funds, and derivative instruments, the trustees obtain multiple prices from pricing vendors whenever possible, which enables cross-provider validations in addition to checks for unusual daily movements. A primary price source is identified based on asset type, class, or issue for each security. With respect to individually held fixed income securities, the trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

if the portfolio managers challenge an assigned price and the trustees determine that another price source is considered to be preferable. Exelon has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Exelon selectively corroborates the fair values of securities by comparison to other market-based price sources. Investments in U.S. Treasury securities have been categorized as Level 1 because they trade in highly-liquid and transparent markets. Certain private placement fixed income securities have been categorized as Level 3 because they are priced using certain significant unobservable inputs and are typically illiquid. The remaining fixed income securities, including certain other fixed income investments, are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized as Level 2.
Other fixed income investments primarily consist of fixed income commingled funds and mutual funds, which are maintained by investment companies and hold certainfund investments in accordance with a stated set of fund objectives, which are consistent with Exelon’s overall investment strategy.objectives. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For fixed income commingled funds and mutual funds which are not publicly quoted, the fund administrators value the funds using the NAV per fund share, derived from the quoted prices in active markets of the underlying securities and are not classified within the fair value hierarchy. These investments typically can be redeemed monthly or more frequently, with 30 or less days of notice and without further restrictions.
Derivative instruments. These instruments, consisting primarily of futures and swaps to manage risk, are recorded at fair value. Over-the-counter derivatives are valued daily, based on quoted prices in active markets and trade in open markets, and have been categorized as Level 1. Derivative instruments other than over-the-counter derivatives are valued based on external price data of comparable securities and have been categorized as Level 2.
Private equity.credit. Private equitycredit investments primarily consist of investments in private debt strategies. These investments are generally less liquid assets with an underlying term of 3 to 5 years and are intended to be held to maturity. The fair value of these investments is determined by the fund manager or administrator using a combination of valuation models including cost models, market models, and income models and typically cannot be redeemed until maturity of the term loan. Private credit investments held directly by Exelon are categorized as Level 3 because they are based largely on inputs that are unobservable and utilize complex valuation models. For managed private credit funds, the fair value is determined using a combination of valuation models including
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Combined Notes to Consolidated Financial Statements
(Dollars in millions, except per share data unless otherwise noted)

Note 14 — Retirement Benefits
cost models, market models, and income models and typically cannot be redeemed until maturity of the term loan. Managed private credit fund investments are not classified within the fair value hierarchy because their fair value is determined using NAV or its equivalent as a practical expedient.
Private equity. These investments include those in limited partnerships that invest in operating companies that are not publicly traded on a stock exchange such as leveraged buyouts, growth capital, venture capital, distressed investments, and investments in natural resources. These investments typically cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date, which is based on Exelon's understanding of the investment funds. Private equity valuations are reported by the fund manager and are based on the valuation of the underlying investments, which include unobservable inputs such as cost, operating results, discounted future cash flows, and market based comparable data. These valuation inputs are unobservable. The fair value of private equity investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.
HedgeReal estate. These investments are funds. with a direct investment in pools of real estate properties. These funds are reported by the fund manager and are generally based on independent appraisals of the underlying investments from sources with professional qualifications, typically using a combination of market based comparable data and discounted cash flows. These valuation inputs are unobservable. Certain real estate investments cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date, which is based on Exelon's understanding of the investment funds. The remaining liquid real estate investments are generally redeemable from the investment vehicle quarterly, with 30 to 90 days of notice. The fair value of real estate investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.
Pension and OPEB assets also include investments in hedge funds. Hedge fund investments include those seeking to maximize absolute returns usingthat employ a broad range of strategies to enhance returns and provide additional diversification. The fair value of hedge funds is determined using NAV or its equivalent as a practical expedient, and therefore, hedge funds are not classified within the fair value hierarchy. Exelon has the ability to redeem these investments at NAV or its equivalent subject to certain restrictions which may include a lock-up period or a gate.
Real estate. Real estate funds are funds with a direct investment in pools of real estate properties. These funds are valued by investment managers on a periodic basis using pricing models that use independent appraisals from sources with professional qualifications. These valuation inputs are not highly observable. The fair value of real estate investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.
Private credit. Private credit investments primarily consist of limited partnerships that invest in private debt strategies. These investments are generally less liquid assets with an underlying term of 3 to 5 years and are intended to be held to maturity.  The fair value of these investments is determined by the fund manager or administrator and include unobservable inputs such as cost, operating results, and discounted cash flows.  The fair value of private credit investments is determined using NAV or its

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.
Defined Contribution Savings Plan (All Registrants)
The Registrants participate in variousa 401(k) defined contribution savings plansplan that areis sponsored by Exelon. The plans areplan is qualified under applicable sections of the IRC and allowallows employees to contribute a portion of their pre-tax and/or after-tax income in accordance with specified guidelines. All Registrants match a percentage of the employee contributions up to certain limits. The following table presents the employer contributions and employer matching contributions to the savings plan for the years ended December 31, 2017, 20162022, 2021, and 2015:2020:
For the Years Ended December 31,ExelonComEdPECOBGEPHIPepcoDPLACE
2022$91 $39 $13 $11 14 $$$
202190 35 12 12 14 
202095 36 12 13 14 

For the Year Ended December 31,
Exelon(a)
 
Generation(a)
 ComEd PECO BGE 
BSC(b)
 
Pepco(c)
 
DPL(c)
 ACE 
PHISCO(c)(d)
2017$128
 $55

$31

$10

$10

$9
 $3
 $2
 $2
 $6
2016164
 79

34

10

12

19
 3
 2
 2
 6
2015148
 80

32

11

14

11
 3
 2
 2
 6
 Successor  Predecessor
PHIFor the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
Saving Plan Matching Contributions$13
 $10
  $3
 $14
__________
(a)Includes $13 million and $9 million related to CENG for the years ended December 31, 2016 and December 31, 2015.
(b)These amounts primarily represent amounts billed to Exelon’s subsidiaries through intercompany allocations. These costs are not included in the Generation, ComEd, PECO, BGE, PHI, Pepco, DPL or ACE amounts above.
(c)Pepco's, DPL's and PHISCO's matching contributions include $1 million, $1 million and $1 million, respectively, of costs incurred prior to the closing of Exelon's merger with PHI on March 23, 2016, which is not included in Exelon's matching contributions for the year ended December 31, 2016.
(d)These amounts primarily represent amounts billed to Pepco, DPL, and ACE through intercompany allocations. These amounts are not included in Pepco, DPL or ACE amounts above.
17. Severance15. Derivative Financial Instruments (All Registrants)
The Registrants have anuse derivative instruments to manage commodity price risk and interest rate risk related to ongoing severance plan under which, in general, the longer an employee worked prior to termination the greater the amount of severance benefits.business operations. The Registrants record a liability and expensedo not execute derivatives for speculative or regulatory asset for severance once terminations are probable of occurrence and the related severance benefits canproprietary trading purposes.
Authoritative guidance requires that derivative instruments be reasonably estimated. For severance benefits that are incremental to its ongoing severance plan (“one-time termination benefits”), the Registrants measure the obligation and record the expenserecognized as either assets or liabilities at fair value, with changes in fair value of the derivative recognized in earnings immediately. Other accounting treatments are available through special election and designation, provided they meet specific, restrictive criteria both at the communication date if theretime of designation and on an ongoing basis. These alternative permissible accounting treatments include NPNS, cash flow hedges, and fair value hedges. At ComEd, derivative economic hedges related to commodities are no future service requirements,recorded at fair value and offset by a corresponding regulatory asset or if future serviceliability. At Exelon, derivative economic hedges related to interest rates are recorded at fair value and offsets are recorded to Electric operating revenues or Interest expense based on the activity the transaction is required to receive the termination benefit, ratably over the required service period.economically hedging.
Ongoing Severance Plans
230
The Registrants provide severance and health and welfare benefits under Exelon’s ongoing severance benefit plans to terminated employees in the normal course



Table of business. These benefits are accrued for when the benefits are considered probable and can be reasonably estimated.   
For the years ended December 31, 2017 and 2016, the Registrants recorded the following severance costs associated with ongoing severance benefits within Operating and maintenance expense in their Consolidated Statements of Operations and Comprehensive Income:

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 15 — Derivative Financial Instruments
           Successor      
 Exelon 
Generation(a)
 
ComEd(a)
 
PECO(a)
 
BGE(a)
 
PHI(a)
 
Pepco(a)
 
DPL(a)
 
ACE(a)
Year ended December 31,                 
2017$14
 $6
 $3
 $1
 $
 $4
 $2
 $1
 $1
201619
 13
 3
 1
 1
 1
 
 
 
For all NPNS derivative instruments, accounts receivable or accounts payable are recorded when derivatives settle and revenue or expense is recognized in earnings as the underlying physical commodity is sold or consumed. At Exelon, derivative hedges that qualify and are designated as cash flow hedges are recorded at fair value and offsets are recorded to AOCI.
__________ComEd’s use of cash collateral is generally unrestricted unless ComEd is downgraded below investment grade. Cash collateral held by PECO, BGE, Pepco, DPL, and ACE must be deposited in an unaffiliated major U.S. commercial bank or foreign bank with a U.S. branch office that meets certain qualifications.
Commodity Price Risk
The Registrants employ established policies and procedures to manage their risks associated with market fluctuations in commodity prices by entering into physical and financial derivative contracts, which are either determined to be non-derivative or classified as economic hedges. The Utility Registrants procure electric and natural gas supply through a competitive procurement process approved by each of the respective state utility commissions. The Utility Registrants’ hedging programs are intended to reduce exposure to energy and natural gas price volatility and have no direct earnings impact as the costs are fully recovered from customers through regulatory-approved recovery mechanisms. The following table provides a summary of the Utility Registrants’ primary derivative hedging instruments, listed by commodity and accounting treatment.
(a)RegistrantThe amounts aboveCommodityAccounting TreatmentHedging Instrument
ComEdElectricityNPNSFixed price contracts based on all requirements in the IPA procurement plans.
Electricity
Changes in fair value of economic hedge recorded to an offsetting regulatory asset or liability(a)
20-year floating-to-fixed energy swap contracts beginning June 2012 based on the renewable energy resource procurement requirements in the Illinois Settlement Legislation of approximately 1.3 million MWhs per year.
PECOElectricityNPNSFixed price contracts for Generation, ComEd, PECO, default supply requirements through full requirements contracts.
GasNPNSFixed price contracts to cover about 10% of planned natural gas purchases in support of projected firm sales.
BGE and PHI include immaterial amounts billed by BSCElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
GasNPNSFixed price contracts for between 10-20% of forecasted system supply requirements for flowing (i.e., non-storage) gas for the years ended December 31, 2017November through March period.
PepcoElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
DPLElectricityNPNSFixed price contracts for all SOS requirements through full requirements contracts.
GasNPNSFixed and 2016. Pepco, DPL, and ACE include immaterial amounts billed by PHISCOindex priced contracts through full requirements contracts.
Gas
Changes in fair value of economic hedge recorded to an offsetting regulatory asset or liability(b)
Exchange traded future contracts for the year ended December 31, 2017. Pepco, DPL, and ACE did not have any ongoing severance plansup to 50% of estimated monthly purchase requirements each month, including purchases for the year ended December 31, 2016.storage injections.
ACEElectricityNPNSFixed price contracts for all BGS requirements through full requirements contracts.
Cost Management Program-Related Severance
In August 2015, _________
(a)See Note 3—Regulatory Matters for additional information.
(b)The fair value of the DPL economic hedge is not material as of December 31, 2022 and 2021.
The fair value of derivative economic hedges is presented in Other current assets and current and noncurrent Mark-to-market derivative liabilities in Exelon's and ComEd's Consolidated Balance Sheets.
Interest Rate and Other Risk (Exelon)
Exelon announcedCorporate uses a cost management program focused on cost savingscombination of approximately $400 million at BSCfixed-rate and Generation. Additionally, in November 2017, Exelon announced a new commitment for an additional $250 million of cost savings, primarily at Generation, to be achieved by 2020. These actions are in response to the continuing economic challenges confronting all parts of Exelon’s business and industry, necessitating continued focus on cost management through enhanced efficiency and productivity. In connection with the program, certain positions have been identified for elimination and severance costs were recognized as both probable and estimable.
While there may be additional position eliminations identified leading to potential severance or other termination benefit changes, Exelon, Generation and BSC intendvariable-rate debt to manage any staff reductions through natural attritioninterest rate exposure. Exelon Corporate may utilize interest rate derivatives to the extent possible to minimize impacts on employees. Any additional severance or other termination benefit charges related to this commitment will be recognized when such amountslock in rate levels in anticipation of future financings, which are considered probable and can be reasonably estimated.
For the years ended December 31, 2017 and 2016, the Registrants recorded the following severance costs related to the cost management program within Operating and maintenance expense in their Consolidated Statements of Operations:typically designated as cash flow hedges. In addition, Exelon Corporate may also utilize interest rate
231




 Exelon Generation ComEd PECO BGE
2017(a)
$6
 $9
 $(1) $(1) $(1)
2016(b)
23
 18
 3
 1
 1
__________
(a)The amounts for Generation, ComEd, PECO, and BGE include $(4) million, $(2) million, $(1) million, and $(1) million, respectively, for amounts billed by BSC through intercompany allocations for the year ended December 31, 2017.
(b)The amounts above for Generation, ComEd, PECO and BGE include $7 million, $3 million, $1 million, and $1 million, respectively, for amounts billed by BSC through intercompany allocations for the year ended December 31, 2016.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 15 — Derivative Financial Instruments
Early Plant Retirement-Related Severance (Exelonswaps to manage interest rate exposure and Generation)
Asmanage potential fluctuations in Electric operating revenues at the corporate level in consolidation, which are directly correlated to yields on U.S. Treasury bonds under ComEd's distribution formula rate. These interest rate swaps are accounted for as economic hedges. A hypothetical 50 basis point change in the interest rates associated with Exelon's interest rate swaps as of December 31, 2022 would result in an immaterial impact to Exelon's Consolidated Net Income. Below is a resultsummary of the Three Mile Island plant retirement decision,interest rate hedge balances as of December 31, 2022. Exelon had no interest rate hedge activity in 2021.
December 31, 2022Derivatives Designated
as Hedging Instruments
Economic HedgesTotal
Other deferred debits (noncurrent assets)$$$11 
Total derivative assets11 
Mark-to-market derivative liabilities (current liabilities)— (3)(3)
Mark-to-market derivative liabilities (noncurrent liabilities)(4)— (4)
Total mark-to-market derivative liabilities(4)(3)(7)
Total mark-to-market derivative net assets$$$
Cash Flow Hedges (Interest Rate Risk)
For derivative instruments that qualify and Generation will incur certain employee-related costs, including severance benefit costs. Severance costs will be provided to management employees that are eligible underdesignated as cash flow hedges, the Company's severance policy, tochanges in fair value each period are initially recorded in AOCI and reclassified into earnings when the extent that those employees are not redeployed to other locations.underlying transaction affects earnings. In June 2017,2022, Exelon Corporate entered into $635 million notional of 5-year maturity floating-to-fixed swaps and Generation recognized severance costs$635 million notional of $1710-year maturity floating-to-fixed swaps, for a total of $1,270 million related to expected management employee severances resulting from the plant retirements within Operatingas of December 31, 2022. Exelon had no swaps designated as cash flow hedges as of December 31, 2021. In January 2023, Exelon Corporate entered into $115 million notional of 5-year maturity floating-to-fixed swaps and maintenance expense in their Consolidated Statements$115 million notional of Operation and Comprehensive Income. Approximately half10-year maturity floating-to-fixed swaps, for a total of $230 million designated as cash flow hedges. The total notional of the employees at this location fall under a collective bargaining union agreementswaps issued as of the balance sheet date and subsequently are $1,500 million.
The AOCI derivative gain is $2 million as of December 31, 2022. There were no amounts reclassified to Net Income in 2022. See Note 21 – Changes in Accumulated Other Comprehensive Income for additional information. Exelon had no swaps designated as cash flow hedges as of December 31, 2021.
Economic Hedges (Interest Rate and Other Risk)
Exelon Corporate executes derivative instruments to mitigate exposure to fluctuations in interest rates but for which the fair value or cash flow hedge elections were not eligible for severance benefits under an existing plan. The unionmade. For derivatives intended to serve as economic hedges, fair value is recorded on the balance sheet and Exelon will negotiate terms of any severance benefits. If severance benefitschanges in fair value each period are successfully negotiated, the amounts will be accruedrecognized in earnings or as a one-time employee termination benefit once the established plan is communicatedregulatory asset or liability, if regulatory requirements are met, each period.
Exelon Corporate enters into floating-to-fixed interest rate cap swaps to employees. The final amount of the severance cost will ultimately depend on the specific employees severed. See Note 8 - Early Nuclear Plant Retirements for additional information regarding the announced early retirement of TMI. See Note 28 - Subsequent Events for additional information regarding the early retirement of Oyster Creek.
Severance Costs Related to the PHI Merger
Upon closing the PHI Merger, Exelon recorded a severance accrual for the anticipated employee position reductions as a result of the post-merger integration. Cash payments under the plan began in May 2016 and will continue through 2020.
For the year ended December 31, 2017, the PHI Merger severance costs were immaterial. For the year ended December 31, 2016, the Registrants recorded the following severance costs associated with the identified job reductions within Operating and maintenance expense in their Consolidated Statements of Operations and Comprehensive Income, pursuant to the authoritative guidance for ongoing severance plans:
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Severance Benefits                 
Severance costs(a)
$57
 $9
 $2
 $1
 $1
 $44
 $21
 $13
 $10
__________
(a)The amounts above for Generation, ComEd, PECO, BGE, Pepco, DPL, and ACE include $8 million, $2 million, $1 million, $1 million, $20 million, $12 million and $10 million, respectively, for amounts billed by BSC and/or PHISCO through intercompany allocations for the year ended December 31, 2016.
PHI, Pepco, DPL and ACE record regulatory assets for merger related integration costs which includemanage a portion of the severance costsinterest rate exposure in the table aboveconnection with existing borrowings. In 2022, Exelon Corporate entered into $1,000 million notional of 18-month maturity floating-to-fixed interest rate cap swaps and $850 million notional of 6-month maturity floating-to-fixed interest rate cap swaps, for a total of $1,850 million notional of floating-to-fixed interest rate cap swaps as of December 31, 2022. Exelon had no swaps as of December 31, 2021.
Additionally, to manage potential fluctuations in Electric operating revenues related to ComEd's distribution formula rate, Exelon Corporate enters into 30-year constant maturity treasury interest rate (Corporate 30-year treasury) swaps. As of December 31, 2022, Exelon Corporate entered into $500 million notional of calendar year 2023 Corporate 30-year treasury swaps. In January and February 2023, Exelon Corporate entered into a total of $1,500 million notional of calendar year 2023 Corporate 30-year treasury swaps. The total notional of the PHI Merger. These regulatory assetsswaps issued as of the balance sheet date and subsequently are either currently being recovered in rates or are deemed probable$2,000 million.


232




Table of recovery in future rates. See Note 3 — Regulatory Matters for further information.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Severance Liability
Amounts included in the table below represent the severance liability recorded for employees of each Registrant and exclude amounts included at Exelon and billed through intercompany allocations:
Note 15 — Derivative Financial Instruments
           Successor      
Severance LiabilityExelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Balance at December 31, 2015$35
 $23
 $3
 $
 $1
 $
 $
 $
 $
Severance charges(a)
99
 22
 2
 
 
 56
 1
 1
 
Payments(46) (9) (2) 
 (1) (27) (1) (1) 
Balance at December 31, 2016$88
 $36
 $3
 $
 $
 $29
 $
 $
 $
Severance charges(a)
35
 31
 2
 
 
 3
 
 
 
Payments(29) (9) (2) 
 
 (12) 
 
 
Balance at December 31, 2017$94

$58

$3

$

$

$20

$

$

$
__________
(a)Includes salary continuance and health and welfare severance benefits.
18. Mezzanine Equity (Exelon, Generation and PHI)
Contingently Redeemable Noncontrolling Interests (Exelon and Generation)
In November 2015, 2015 ESA Investco, LLC, a wholly owned subsidiary of Generation, entered into an arrangement to sell a portion of its equity to a tax equity investor. Pursuant to the operating agreement, in certain circumstances the equity contributed by the noncontrolling interests holder could be contingently redeemable. These circumstances were outside of the control of Generation and the noncontrolling interests holder resulting in a portion of the noncontrolling interests being considered contingently redeemable and thus was presented in mezzanine equity on the consolidated balance sheet.
There were no changes in the contingently redeemable noncontrolling interests forFor the year ended December 31, 2017. The2022, Exelon Corporate recognized the following table summarizes thenet pre-tax mark-to-market losses which are also recognized in Net fair value changes related to derivatives in the contingently redeemable noncontrolling interestsExelon's Consolidated Statements of Cash Flows. Exelon had no swaps for the yearyears ended December 31, 2016:2021 and 2020.
Loss
Income Statement Location2022
Electric operating revenues$
Interest expense
Total$
 Contingently Redeemable NCI
Balance at December 31, 2015$28
Cash received from noncontrolling interests129
Release of contingency(157)
Balance at December 31, 2016$

Preferred Stock (PHI)Credit Risk
In connection with the PHI Merger Agreement, Exelon purchased 18,000 originally issued shares of PHI preferred stock for a purchase price of $180 million. PHI excluded the preferred stock from equity at December 31, 2015 since the preferred stock contained conditions for redemption that were not solely within the control of PHI. Management determined that the preferred stock contained embedded features requiring separate accounting considerationThe Registrants would be exposed to reflect the potential value to PHI that any issued and outstanding preferred stock could be called and redeemed at a nominal par value upon a termination of the merger agreement under certain circumstances due to the failure to obtain required regulatory approvals. The embedded call and redemption features on the shares of the preferred stockcredit-related losses in the event of suchnon-performance by counterparties on executed derivative instruments. The credit exposure of derivative contracts, before collateral, is represented by the fair value of contracts at the reporting date. The Utility Registrants have contracts to procure electric and natural gas supply that provide suppliers with a termination were separately accounted for as derivatives.certain amount of unsecured credit. If the exposure on the supply contract exceeds the amount of unsecured credit, the suppliers may be required to post collateral. The net credit exposure is mitigated primarily by the ability to recover procurement costs through customer rates. As of December 31, 2015,2022, the fairamount of cash collateral held with external counterparties by Exelon, ComEd, BGE, PHI, Pepco, DPL, and ACE was $297 million, $77 million, $23 million, $197 million, $26 million, $121 million, and $50 million, respectively, which is recorded in Other current liabilities in Exelon's, ComEd's, BGE's, PHI's, Pepco's, DPL's, and ACE's Consolidated Balance Sheets. The amount for PECO was not material as of December 31, 2022. As of December 31, 2021, the amounts for ComEd and DPL were $41 million and $43 million, respectively. The amounts for Exelon, PECO, BGE, PHI, Pepco, and ACE were not material as of December 31, 2021.

The Utility Registrants’ electric supply procurement contracts do not contain provisions that would require them to post collateral. PECO’s, BGE’s, and DPL’s natural gas procurement contracts contain provisions that could require PECO, BGE, and DPL to post collateral in the form of cash or credit support, which vary by contract and counterparty, with thresholds contingent upon PECO’s, BGE's, and DPL’s credit rating. As of December 31, 2022, PECO, BGE, and DPL were not required to post collateral for any of these agreements. If PECO, BGE, or DPL lost their investment grade credit rating as of December 31, 2022, they could have been required to post collateral to their counterparties of $71 million, $119 million, and $15 million, respectively.

16. Debt and Credit Agreements (All Registrants)
Short-Term Borrowings
Exelon Corporate, ComEd, and BGE meet their short-term liquidity requirements primarily through the issuance of commercial paper. PECO meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the Exelon intercompany money pool. Pepco, DPL, and ACE meet their short-term liquidity requirements primarily through the issuance of commercial paper and borrowings from the PHI intercompany money pool. PHI Corporate meets its short-term liquidity requirements primarily through the issuance of short-term notes and borrowings from the Exelon intercompany money pool. The Registrants may use their respective credit facilities for general corporate purposes, including meeting short-term funding requirements and the issuance of letters of credit.
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Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 16 — Debt and Credit Agreements
Commercial Paper
The following table reflects the Registrants' commercial paper programs supported by the revolving credit agreements and bilateral credit agreements as of December 31, 2022 and 2021:
Credit Facility Size
as of December 31,
Outstanding Commercial
Paper as of December 31,
Average Interest Rate on
Commercial Paper Borrowings
as of December 31,
Commercial Paper Issuer
2022(a)
2021(a)
2022202120222021
Exelon(b)
$4,000 $3,700 $1,938 $599 4.77 %0.35 %
ComEd1,000 1,000 427 — 4.71 %— %
PECO600 600 239 — 4.71 %— %
BGE600 600 409 130 4.81 %0.37 %
PHI(c)
900 900 414 469 4.78 %0.35 %
Pepco300 (d)300 299 175 4.79 %0.33 %
DPL300 (d)300 115 149 4.76 %0.36 %
ACE300 (d)300 — 145 — %0.35 %
__________
(a)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(b)Includes revolving credit agreements at Exelon Corporate with a maximum program size of $900 million and $600 million as of December 31, 2022 and December 31, 2021, respectively. Exelon Corporate had $449 million in outstanding commercial paper as of December 31, 2022 and no outstanding commercial paper as of December 31, 2021.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
(d)The standard maximum program size for revolving credit facilities is $300 million each for Pepco, DPL and ACE based on the credit agreements in place. However, the facilities at Pepco, DPL, and ACE have the ability to flex to $500 million, $500 million, and $350 million, respectively. The borrowing capacity may be increased or decreased during the term of the facility, except that (i) the sum of the borrowing capacity must equal the total amount of the facility, and (ii) the aggregate amount of credit used at any given time by each of Pepco, DPL, or ACE may not exceed $900 million or the maximum amount of short-term debt the company is permitted to have outstanding by its regulatory authorities. The total number of the borrowing reallocations may not exceed eight per year during the term of the facility. As of December 23, 2022, this ability was utilized to increase Pepco's program size to $400 million. As a result, the program sizes for DPL and ACE were decreased to $250 million each, which prevents the aggregate amount of outstanding short-term debt from potentially exceeding the $900 million limit.
In order to maintain their respective commercial paper programs in the amounts indicated above, each Registrant must have credit facilities in place, at least equal to the amount of its commercial paper program. A registrant does not issue commercial paper in an aggregate amount exceeding the then available capacity under its credit facility.
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Note 16 — Debt and Credit Agreements
As of December 31, 2022, the Registrants had the following aggregate bank commitments, credit facility borrowings, and available capacity under their respective credit facilities:
Available Capacity as of December 31, 2022
Borrower(a)
Facility Type
Aggregate Bank
Commitment
(b)
Facility DrawsOutstanding
Letters of Credit
Actual
To Support
Additional
Commercial
Paper
(c)
Exelon(c)
Syndicated Revolver$4,000 $— $$3,992 $2,054 
ComEdSyndicated Revolver1,000 — 995 568 
PECOSyndicated Revolver600 — — 600 361 
BGESyndicated Revolver600 — — 600 191 
PHI(d)
Syndicated Revolver900 — — 900 486 
PepcoSyndicated Revolver300 — — 300 
DPLSyndicated Revolver300 — — 300 185 
ACESyndicated Revolver300 — — 300 300 
__________
(a)On February 1, 2022, Exelon Corporate and the Utility Registrants' respective syndicated revolving credit facilities were replaced with a new 5-year revolving credit facility.
(b)Excludes credit facility agreements arranged at minority and community banks. See below for additional information.
(c)Includes $900 million aggregate bank commitment related to Exelon Corporate. Exelon Corporate had $3 million outstanding letters of credit as of December 31, 2022. Exelon Corporate had $448 million in available capacity to support additional commercial paper as of December 31, 2022.
(d)Represents the consolidated amounts of Pepco, DPL, and ACE.
The following table reflects the Registrants' credit facility agreements arranged at minority and community banks as of December 31, 2022 and 2021. These are excluded from the Maximum Program Size and Aggregate Bank Commitment amounts within the two tables above and the facilities are solely used to issue letters of credit.
Aggregate Bank CommitmentsOutstanding Letters of Credit
Borrower
2022(a)
202120222021
Exelon(b)
$140 $98 $10 $
ComEd40 33 
PECO40 33 
BGE15 
PHI(c)
45 24 — — 
Pepco15 — — 
DPL15 — — 
ACE15 — — 
__________
(a)These facilities were entered into on October 7, 2022 and expire on October 6, 2023.
(b)Represents the consolidated amounts of ComEd, PECO, BGE, Pepco, DPL, and ACE.
(c)Represents the consolidated amounts of Pepco, DPL, and ACE.
Revolving Credit Agreements
On February 1, 2022, Exelon Corporate and the Utility Registrants each entered into a new 5-year revolving credit facility that replaced its existing syndicated revolving credit facility. The following table reflects the credit agreements:
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Note 16 — Debt and Credit Agreements
BorrowerAggregate Bank CommitmentInterest Rate
Exelon Corporate$900 SOFR plus 1.275 %
ComEd1,000 SOFR plus 1.000 %
PECO600 SOFR plus 0.900 %
BGE600 SOFR plus 0.900 %
Pepco300 SOFR plus 1.075 %
DPL300 SOFR plus 1.000 %
ACE300 SOFR plus 1.075 %
Borrowings under Exelon’s, ComEd’s, PECO’s, BGE's, Pepco's, DPL's, and ACE's revolving credit agreements bear interest at a rate based upon either the prime rate or a SOFR-based rate, plus an adder based upon the particular Registrant’s credit rating. The adders for the prime based borrowings and SOFR-based borrowings are presented in the following table:
Exelon(a)
ComEdPECOBGEPepcoDPLACE
Prime based borrowings0 - 27.5— — — 7.5 — 7.5 
SOFR-based borrowings90.0 - 127.5100.0 90.0 90.0 107.5 100.0 107.5 
__________
(a)Includes interest rate adders at Exelon Corporate of 27.5 basis points and 127.5 basis points for prime and SOFR-based borrowings, respectively.
If any registrant loses its investment grade rating, the maximum adders for prime rate borrowings and SOFR-based rate borrowings would be 65 basis points and 165 basis points, respectively. The credit agreements also require the borrower to pay a facility fee based upon the aggregate commitments. The fee varies depending upon the respective credit ratings of the borrower.
Short-Term Loan Agreements
On March 23, 2017, Exelon Corporate entered into a term loan agreement for $500 million. The loan agreement was renewed on March 14, 2022 and will expire on March 16, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65% and all indebtedness thereunder is unsecured. The loan agreement is reflected in Exelon's Consolidated Balance Sheets within Short-term borrowings.
On March 31, 2021, Exelon Corporate entered into a 364-day term loan agreement for $150 million with a variable interest rate of LIBOR plus 0.65% and an expiration date of March 30, 2022. Exelon Corporate repaid the term loan on March 30, 2022.
In connection with the separation, on January 24, 2022, Exelon Corporate entered into a 364-day term loan agreement for $1.15 billion. The loan agreement had an expiration date of January 23, 2023. Pursuant to the loan agreement, loans made thereunder bore interest at a variable rate equal to SOFR plus 0.75% until July 23, 2022 and a rate of SOFR plus 0.975% thereafter. All indebtedness pursuant to the loan agreement was unsecured. On August 11, 2022, Exelon Corporate made a partial repayment of $575 million on the term loan. On October 11, 2022, the remaining $575 million outstanding balance was repaid in conjunction with the $500 million 18-month term loan that was entered into on October 7, 2022.
On October 4, 2022, ComEd entered into a 364-day term loan agreement for $150 million with a variable rate equal to SOFR plus 0.75% and an expiration date of October 3, 2023. The proceeds from this loan were used to repay outstanding commercial paper obligations. The loan agreement is reflected in Exelon's and ComEd's Consolidated Balance Sheets within Short-term borrowings. The balance of the loan was repaid on January 13, 2023 in conjunction with the $400 million and $575 million First Mortgage Bond agreements that were entered into on January 3, 2023.
Variable Rate Demand Bonds
DPL has outstanding obligations in respect of Variable Rate Demand Bonds (VRDB). VRDBs are subject to repayment on the demand of the holders and, for this reason, are accounted for as short-term debt in
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accordance with GAAP. However, these bonds may be converted to a fixed-rate, fixed-term option to establish a maturity which corresponds to the date of final maturity of the bonds. On this basis, PHI views VRDBs as a source of long-term financing. As of both December 31, 2022 and December 31, 2021, $79 million in variable rate demand bonds issued by DPL were outstanding and are included in the Long-term debt due within one year in Exelon's, PHI's, and DPL's Consolidated Balance Sheets.
Long-Term Debt
The following tables present the outstanding long-term debt at the Registrants as of December 31, 2022 and 2021:
Exelon
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)(b)
1.05 %-7.90 %2023 - 2052$22,651 $20,751 
Senior unsecured notes2.75 %-7.60 %2025 - 20528,324 6,324 
Unsecured notes2.25 %-6.35 %2023 - 20524,250 4,000 
Notes payable and other1.64 %-7.49 %2025 - 205386 86 
Junior subordinated notes3.50 %2022— 1,150 
Long-term software licensing agreement2.30 %-3.95 %2024 - 202525 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 143 
Medium-terms notes (unsecured)7.72 %202710 10 
Loan agreement2.00 %5.15 %2023 - 20241,400 50 
Total long-term debt36,779 32,523 
Unamortized debt discount and premium, net(74)(70)
Unamortized debt issuance costs(257)(220)
Fair value adjustment626 669 
Long-term debt due within one year(c)
(1,802)(2,153)
Long-term debt$35,272 $30,749 
Long-term debt to financing trusts(d)
Subordinated debentures to ComEd Financing III6.35 %2033$206 $206 
Subordinated debentures to PECO Trust III7.38 %-9.50 %202881 81 
Subordinated debentures to PECO Trust IV5.75 %2033103 103 
Total long-term debt to financing trusts$390 $390 
__________
(a)Substantially all of ComEd’s assets other than expressly excepted property and substantially all of PECO’s, Pepco's, DPL's, and ACE's assets are subject to the liens of their respective mortgage indentures.
(b)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
(c)In connection with the separation, Exelon Corporate entered into three 18-month term loan agreements. On January 21, 2022, two of the loan agreements were issued for $300 million each with an expiration date of July 21, 2023. On January 24, 2022, the third loan agreement was issued for $250 million with an expiration date of July 24, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65%.
(d)Amounts owed to these financing trusts are recorded as Long-term debt to financing trusts within Exelon’s Consolidated Balance Sheets.
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Note 16 — Debt and Credit Agreements
ComEd
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)(b)
2.20 %-6.45 %2024 - 2052$10,629 $9,879 
Other7.49 %2053
Total long-term debt10,637 9,887 
Unamortized debt discount and premium, net(27)(27)
Unamortized debt issuance costs(92)(87)
Long-term debt$10,518 $9,773 
Long-term debt to financing trust(c)
Subordinated debentures to ComEd Financing III6.35 %2033$206 $206 
Total long-term debt to financing trusts206 206 
Unamortized debt issuance costs(1)(1)
Long-term debt to financing trusts$205 $205 
__________
(a)Substantially all of ComEd’s assets, other than expressly excepted property, are subject to the lien of its mortgage indenture.
(b)On January 3, 2023, ComEd entered into a purchase agreement of First Mortgage Bonds of $400 million and $575 million at 4.90% and 5.30% due on February 1, 2033 and February 1, 2053, respectively. The closing date of the issuance occurred on January 10, 2023.
(c)Amount owed to this financing trust is recorded as Long-term debt to financing trust within ComEd’s Consolidated Balance Sheets.
PECO
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.80 %-5.95 %2025 - 2052$4,625 $4,200 
Loan agreement2.00 %202350 50 
Total long-term debt4,675 4,250 
Unamortized debt discount and premium, net(24)(20)
Unamortized debt issuance costs(39)(33)
Long-term debt due within one year(50)(350)
Long-term debt$4,562 $3,847 
Long-term debt to financing trusts(b)
Subordinated debentures to PECO Trust III7.38 %-9.50 %2028$81 $81 
Subordinated debentures to PECO Trust IV5.75 %2033103 103 
Long-term debt to financing trusts$184 $184 
__________
(a)Substantially all of PECO’s assets are subject to the lien of its mortgage indenture.
(b)Amounts owed to this financing trust are recorded as Long-term debt to financing trusts within PECO’s Consolidated Balance Sheets.
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Note 16 — Debt and Credit Agreements
BGE
Maturity
Date
December 31,
Rates20222021
Long-term debt
Unsecured notes2.25 %-6.35 %2023 - 2052$4,250 $4,000 
Total long-term debt4,250 4,000 
Unamortized debt discount and premium, net(13)(12)
Unamortized debt issuance costs(30)(27)
Long-term debt due within one year(300)(250)
Long-term debt$3,907 $3,711 
PHI
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
1.05 %-7.90 %2023 - 2052$7,397 $6,672 
Senior unsecured notes7.45 %2032185 185 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 143 
Medium-terms notes (unsecured)7.72 %202710 10 
Finance leases5.59 %2025 - 203076 74 
Other(b)
7.28 %-7.49 %2022— — 
Total long-term debt7,701 7,084 
Unamortized debt discount and premium, net
Unamortized debt issuance costs(47)(36)
Fair value adjustment462 495 
Long-term debt due within one year(591)(399)
Long-term debt$7,529 $7,148 
_________
(a)Substantially all of Pepco's, DPL's, and ACE's assets are subject to the liens of their respective mortgage indentures.
(b)The amount in the Other category was zero and less than $1 million as of December 31, 2022 and December 31, 2021, respectively.
Pepco
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.32 %-7.90 %2024 - 2052$3,775 $3,350 
Unsecured tax-exempt bonds1.70 %2022— 110 
Finance leases5.59 %2025 - 202925 26 
Other(b)
7.28 %-7.49 %2022— — 
Total long-term debt3,800 3,486 
Unamortized debt discount and premium, net
Unamortized debt issuance costs(51)(43)
Long-term debt due within one year(4)(313)
Long-term debt$3,747 $3,132 
________
(a)Substantially all of Pepco's assets are subject to the lien of its mortgage indenture.
(b)The amount in the Other category was zero and less than $1 million as of December 31, 2022 and December 31, 2021, respectively.
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Note 16 — Debt and Credit Agreements
DPL
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
1.05 %-4.27 %2023 - 2052$1,874 $1,749 
Unsecured tax-exempt bonds4.00 %-4.05 %202433 33 
Medium-terms notes (unsecured)7.72 %202710 10 
Finance leases5.39 %2025 - 203032 29 
Total long-term debt1,949 1,821 
Unamortized debt discount and premium, net(b)
— — 
Unamortized debt issuance costs(11)(11)
Long-term debt due within one year(584)(83)
Long-term debt$1,354 $1,727 
__________
(a)Substantially all of DPL's assets are subject to the lien of its mortgage indenture.
(b)The amount in the Unamortized debt discount and premium, net category was less than $1 million as of December 31, 2022 and 2021.
ACE
Maturity
Date
December 31,
Rates20222021
Long-term debt
First mortgage bonds(a)
2.25 %-5.80 %2024 - 2052$1,748 $1,573 
Finance leases5.59 %2025 - 203019 19 
Total long-term debt1,767 1,592 
Unamortized debt discount and premium, net(1)(1)
Unamortized debt issuance costs(9)(9)
Long-term debt due within one year(3)(3)
Long-term debt$1,754 $1,579 
__________
(a)Substantially all of ACE's assets are subject to the lien of its mortgage indenture.
Long-term debt maturities at the Registrants in the periods 2023 through 2027 and thereafter are as follows:
YearExelon ComEdPECOBGEPHIPepcoDPLACE
2023$1,802 $— $50 $300  $591 $$584 $
20241,317 250 — —  564 405 153 
20251,414 — 350 —  242 84 153 
20261,613 500 — 350  13 
20271,021 350 — —  21 15 
Thereafter30,002 (a)9,743 (b)4,459 (c)3,600 6,270 3,379 1,254 1,452 
Total$37,169 $10,843 $4,859 $4,250 $7,701 $3,800 $1,949 $1,767 
__________
(a)Includes $390 million due to ComEd and PECO financing trusts.
(b)Includes $206 million due to ComEd financing trust.
(c)Includes $184 million due to PECO financing trusts.
Long-Term Debt to Affiliates
In connection with the debt obligations assumed by Exelon as part of the Constellation merger, Exelon and subsidiaries of Generation (former Constellation subsidiaries) entered into intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes
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Note 16 — Debt and Credit Agreements
receivable at Exelon Corporate from Generation. As of December 31, 2021, Exelon Corporate had $319 million recorded to intercompany notes receivable from Generation. In connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle the intercompany loan.
Debt Covenants
As of December 31, 2022, the Registrants are in compliance with debt covenants.

17. Fair Value of Financial Assets and Liabilities (All Registrants)
Exelon measures and classifies fair value measurements in accordance with the hierarchy as defined by GAAP. The hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows:
Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities that the Registrants have the ability to liquidate as of the reporting date.
Level 2 — inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data.
Level 3 — unobservable inputs, such as internally developed pricing models or third-party valuations for the asset or liability due to little or no market activity for the asset or liability.
Fair Value of Financial Liabilities Recorded at Amortized Cost
The following tables present the carrying amounts and fair values of the Registrants’ short-term liabilities, long-term debt, and trust preferred securities (long-term debt to financing trusts or junior subordinated debentures) as of December 31, 2022 and 2021. The Registrants have no financial liabilities classified as Level 1 or measured using the NAV practical expedient.
The carrying amounts of the Registrants’ short-term liabilities as presented in their Consolidated Balance Sheets are representative of their fair value (Level 2) because of the short-term nature of these instruments.

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Note 17 — Fair Value of Financial Assets and Liabilities
December 31, 2022December 31, 2021
Carrying AmountFair ValueCarrying AmountFair Value
Level 2Level 3TotalLevel 2Level 3Total
Long-Term Debt, including amounts due within one year(a)
Exelon$37,074 $29,902 $2,327 $32,229 $32,902 $34,897 $2,217 $37,114 
ComEd10,518 9,006 — 9,006 9,773 11,305 — 11,305 
PECO4,612 3,864 50 3,914 4,197 4,740 50 4,790 
BGE4,207 3,613 — 3,613 3,961 4,406 — 4,406 
PHI8,120 4,507 2,277 6,784 7,547 5,970 2,167 8,137 
Pepco3,751 2,229 1,205 3,434 3,445 3,201 975 4,176 
DPL1,938 1,164 458 1,622 1,810 1,426 552 1,978 
ACE1,757 909 614 1,523 1,582 1,091 641 1,732 
Long-Term Debt to Financing Trusts
Exelon$390 $— $384 $384 $390 $— $470 $470 
ComEd205 — 204 204 205 — 248 248 
PECO184 — 180 180 184 — 222 222 
__________
(a) Includes unamortized debt issuance costs, unamortized debt discount and premium, net, purchase accounting fair value adjustments, and finance lease liabilities which are not fair valued. Refer to Note 16 — Debt and Credit Agreements for unamortized debt issuance costs, unamortized debt discount and premium, net, and purchase accounting fair value adjustments and Note 10 — Leases for finance lease liabilities.

Exelon uses the following methods and assumptions to estimate fair value of financial liabilities recorded at carrying cost:
TypeLevelRegistrantsValuation
Long-Term Debt, including amounts due within one year
Taxable Debt Securities2AllThe fair value is determined by a valuation model that is based on a conventional discounted cash flow methodology and utilizes assumptions of current market pricing curves. Exelon obtains credit spreads based on trades of existing Exelon debt securities as well as other issuers in the utility sector with similar credit ratings. The yields are then converted into discount rates of various tenors that are used for discounting the respective cash flows of the same tenor for each bond or note.
Variable Rate Financing Debt2Exelon, DPLDebt rates are reset on a regular basis and the carrying value approximates fair value.
Taxable Private Placement Debt Securities3Exelon, Pepco, DPL, ACERates are obtained similar to the process for taxable debt securities. Due to low trading volume and qualitative factors such as market conditions, low volume of investors, and investor demand, these debt securities are Level 3.
Non-Government Backed Fixed Rate Nonrecourse Debt3Exelon, PepcoFair value is based on market and quoted prices for its own and other nonrecourse debt with similar risk profiles. Given the low trading volume in the nonrecourse debt market, the price quotes used to determine fair value will reflect certain qualitative factors, such as market conditions, investor demand, new developments that might significantly impact the project cash flows or off-taker credit, and other circumstances related to the project.
Long-Term Debt to Financing Trusts
Long Term Debt to Financing Trusts3Exelon, ComEd, PECOFair value is based on publicly traded securities issued by the financing trusts. Due to low trading volume of these securities and qualitative factors, such as market conditions, investor demand, and circumstances related to each issue, this debt is classified as Level 3.

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(Dollars in millions, except per share data unless otherwise noted)

Note 17 — Fair Value of Financial Assets and Liabilities
Recurring Fair Value Measurements
The following tables present assets and liabilities measured and recorded at fair value in the derivative related toRegistrants' Consolidated Balance Sheets on a recurring basis and their level within the preferred stock was estimated to be $18fair value hierarchy as of December 31, 2022 and 2021. The Registrants have no financial assets or liabilities measured using the NAV practical expedient:
Exelon
As of December 31, 2022As of December 31, 2021
Level 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Assets
Cash equivalents(a)
$664 $— $— $664 $524 $— $— $524 
Rabbi trust investments
Cash equivalents62 — — 62 60 — — 60 
Mutual funds49 — — 49 60 — — 60 
Fixed income— — — 10 — 10 
Life insurance contracts— 58 40 98 — 61 37 98 
Rabbi trust investments subtotal111 65 40 216 120 71 37 228 
Interest rate derivative assets
Derivatives designated as hedging instruments— — — — — — 
Economic hedges— — — — — — 
Interest rate derivative assets subtotal— 11 — 11 — — — — 
Total assets775 76 40 891 644 71 37 752 
Liabilities
Mark-to-market derivative liabilities— — (84)(84)— — (219)(219)
Interest rate derivative liabilities
Derivatives designated as hedging instruments— (4)— (4)— — — — 
Economic hedges— (3)— (3)— — — — 
Interest rate derivative liabilities subtotal— (7)— (7)— — — — 
Deferred compensation obligation— (75)— (75)— (131)— (131)
Total liabilities— (82)(84)(166)— (131)(219)(350)
Total net assets (liabilities)$775 $(6)$(44)$725 $644 $(60)$(182)$402 
__________
(a)Excludes cash of $345 million based on PHI’s updated assessment and was included$464 million as of December 31, 2022 and 2021, respectively, and restricted cash of $81 million and $49 million as of December 31, 2022 and 2021, respectively, and includes long-term restricted cash of $117 million and $44 million as of December 31, 2022 and 2021, respectively, which is reported in current assets with a corresponding increaseOther deferred debits in preferred stock on the Consolidated Balance Sheet. Immediately priorSheets.
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Note 17 — Fair Value of Financial Assets and Liabilities
ComEd, PECO, and BGE
ComEdPECOBGE
As of December 31, 2022Level 1Level 2Level 3TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Assets
Cash equivalents(a)
$392 $— $— $392 $10 $— $— $10 $23 $— $— $23 
Rabbi trust investments
Mutual funds— — — — — — — — 
Life insurance contracts— — — — — 15 — 15 — — — — 
Rabbi trust investments subtotal— — — — 15 — 22 — — 
Total assets392 — — 392 17 15 — 32 30 — — 30 
Liabilities
Mark-to-market derivative liabilities(b)
— — (84)(84)— — — — — — — — 
Deferred compensation obligation— (8)— (8)— (7)— (7)— (4)— (4)
Total liabilities— (8)(84)(92)— (7)— (7)— (4)— (4)
Total net assets (liabilities)$392 $(8)$(84)$300 $17 $$— $25 $30 $(4)$— $26 
ComEdPECOBGE
As of December 31, 2021Level 1Level 2Level 3TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Assets
Cash equivalents(a)
$237 $— $— $237 $$— $— $$— $— $— $— 
Rabbi trust investments
Mutual funds— — — — 11 — — 11 14 — — 14 
Life insurance contracts— — — — — 16 — 16 — — — — 
Rabbi trust investments subtotal— — — — 11 16 — 27 14 — — 14 
Total assets237 — — 237 20 16 — 36 14 — — 14 
Liabilities
Mark-to-market derivative liabilities(b)
— — (219)(219)— — — — — — — — 
Deferred compensation obligation— (10)— (10)— (9)— (9)— (7)— (7)
Total liabilities— (10)(219)(229)— (9)— (9)— (7)— (7)
Total net assets (liabilities)$237 $(10)$(219)$$20 $$— $27 $14 $(7)$— $
__________
(a)ComEd excludes cash of $42 million and $105 million as of December 31, 2022 and 2021, respectively, and restricted cash of $77 million and $42 million as of December 31, 2022 and 2021, respectively, and includes long-term restricted cash of $117 million and $43 million as of December 31, 2022 and 2021, respectively, which is reported in Other deferred debits in the merger date, Consolidated Balance Sheets. PECO excludes cash of $58 million and $35 million as of December 31, 2022 and 2021, respectively. BGE excludes cash of $43 million and $51 million as of December 31, 2022 and 2021, respectively, and restricted cash of $1 million and $4 million as of December 31, 2022 and 2021, respectively.
(b)The Level 3 balance consists of the current and noncurrent liability of $5 million and $79 million, respectively, as of December 31, 2022, and $18 million and $201 million, respectively, as of December 31, 2021 related to floating-to-fixed energy swap contracts with unaffiliated suppliers.
PHI, updated its assessmentPepco, DPL, and ACE
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Note 17 — Fair Value of Financial Assets and Liabilities
As of December 31, 2022As of December 31, 2021
PHILevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Assets
Cash equivalents(a)
$205 $— $— $205 $110 $— $— $110 
Rabbi trust investments
Cash equivalents59 — — 59 59 — — 59 
Mutual funds11 — — 11 14 — — 14 
Fixed income— — — 10 — 10 
Life insurance contracts— 22 39 61 — 27 35 62 
Rabbi trust investments subtotal70 29 39 138 73 37 35 145 
Total assets275 29 39 343 183 37 35 255 
Liabilities
Deferred compensation obligation— (14)— (14)— (18)— (18)
Total liabilities— (14)— (14)— (18)— (18)
Total net assets$275 $15 $39 $329 $183 $19 $35 $237 
PepcoDPLACE
As of December 31, 2022Level 1Level 2Level 3TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Assets
Cash equivalents(a)
$51 $— $— $51 $121 $— $— $121 $$— $— $
Rabbi trust investments
Cash equivalents59 — — 59 — — — — — — — — 
Life insurance contracts— 22 38 60 — — — — — — — — 
Rabbi trust investments subtotal59 22 38 119 — — — — — — — — 
Total assets110 22 38 170 121 — — 121 — — 
Liabilities
Deferred compensation obligation— (1)— (1)— — — — — — — — 
Total liabilities— (1)— (1)— — — — — — — — 
Total net assets$110 $21 $38 $169 $121 $— $— $121 $$— $— $
PepcoDPLACE
As of December 31, 2021Level 1Level 2Level 3TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Assets
Cash equivalents(a)
$31 $— $— $31 $43 $— $— $43 $— $— $— $— 
Rabbi trust investments
Cash equivalents58 — — 58 — — — — — — — — 
Life insurance contracts— 27 35 62 — — — — — — — — 
Rabbi trust investments subtotal58 27 35 120 — — — — — — — — 
Total assets89 27 35 151 43 — — 43 — — — — 
Liabilities
Deferred compensation obligation— (2)— (2)— — — — — — — — 
Total liabilities— (2)— (2)— — — — — — — — 
Total net assets$89 $25 $35 $149 $43 $— $— $43 $— $— $— $— 
__________
(a)PHI excludes cash of $165 million and $100 million as of December 31, 2022 and 2021, respectively, and restricted cash of $3 million and $3 million as of December 31, 2022 and 2021, respectively. Pepco excludes cash of $45 million and $34 million as of December 31, 2022 and 2021, respectively, and restricted cash of $3 million and $3 million as of December 31, 2022 and 2021, respectively. DPL excludes cash of $31 million and $28 million as of December 31, 2022 and 2021, respectively. ACE excludes cash of $71 million and $29 million as of December 31, 2022 and 2021, respectively.

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Note 17 — Fair Value of Financial Assets and Liabilities
Reconciliation of Level 3 Assets and Liabilities
The following tables present the fair value reconciliation of the derivativeLevel 3 assets and reduced theliabilities measured at fair value to zero, recordingon a recurring basis during the $18 million decreaseyears ended December 31, 2022 and 2021:
ExelonComEdPHI and Pepco
For the year ended December 31, 2022TotalMark-to-Market
Derivatives
Life Insurance Contracts
Balance as of December 31, 2021$(182)$(219)$35 
Total realized / unrealized gains (losses)
Included in net income(a)
— 
Included in regulatory assets/liabilities135 135 (b)— 
Purchases, sales, and settlements
Settlements— — — 
Transfers out of Level 3(2)— — 
Balance as of December 31, 2022$(44)$(84)(c)$40 
The amount of total gains included in income attributed to the change in unrealized gains (losses) related to assets and liabilities as of December 31, 2022$— $
ExelonComEdPHI and Pepco
For the year ended December 31, 2021TotalMark-to-Market
Derivatives
Life Insurance Contracts
Balance as of December 31, 2020$(267)$(301)$34 
Total realized / unrealized gains (losses)
Included in net income(a)
— 
Included in regulatory assets/liabilities82 82 (b)— 
Purchases, sales, and settlements
Settlements(2)— (2)
Transfers into Level 3— — 
Balance as of December 31, 2021$(182)$(219)$35 
The amount of total gains included in income attributed to the change in unrealized gains (losses) related to assets and liabilities as of December 31, 2021$$— $
__________
(a)Classified in fair value as a reduction of Other, net within PHI's predecessor period, January 1, 2016 to March 23, 2016,Operating and maintenance expense in the Consolidated Statements of Operations and Comprehensive Income.
On March 23, 2016,(b)Includes $136 million of increases in fair value and a decrease for realized losses due to settlements of $1 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the preferred stockyear ended December 31, 2022. Includes $62 million of increases in fair value and an increase for realized losses due to settlements of $20 million recorded in purchased power expense associated with floating-to-fixed energy swap contracts with unaffiliated suppliers for the year ended December 31, 2021.
(c)The balance of the current and noncurrent asset was cancelledeffectively zero as of December 31, 2022. The balance consists of a current and noncurrent liability of $5 million and $79 million, respectively, as of December 31, 2022.
Valuation Techniques Used to Determine Fair Value
Cash Equivalents (All Registrants).Investments with original maturities of three months or less when purchased, including mutual and money market funds, are considered cash equivalents. The fair values are based on observable market prices and, therefore, are included in the $180 million cash consideration previously received by PHI to issue the preferred stock was treatedrecurring fair value measurements hierarchy as additional merger purchase price consideration.Level 1.
19. Shareholders' EquityRabbi Trust Investments (Exelon, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE). The Rabbi trusts were established to hold assets related to deferred compensation plans existing for certain active and retired members of Exelon’s executive management and directors. The Rabbi trusts' assets are included in investments in the Registrants’ Consolidated Balance Sheets and consist primarily of money market funds, mutual funds, fixed
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Note 17 — Fair Value of Financial Assets and Liabilities
income securities, and life insurance policies. Money market funds and mutual funds are publicly quoted and have been categorized as Level 1 given the clear observability of the prices. The fair values of fixed income securities are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities, adjusted for observable differences and are categorized in Level 2. The life insurance policies are valued using the cash surrender value of the policies, net of loans against those policies, which is provided by a third-party. Certain life insurance policies, which consist primarily of mutual funds that are priced based on observable market data, have been categorized as Level 2 because the life insurance policies can be liquidated at the reporting date for the value of the underlying assets. Life insurance policies that are valued using unobservable inputs have been categorized as Level 3, where the fair value is determined based on the cash surrender value of the policy, which contains unobservable inputs and assumptions. Because Exelon relies on its third-party insurance provider to develop the inputs without adjustment for the valuations of its Level 3 investments, quantitative information about significant unobservable inputs used in valuing these investments is not reasonably available to Exelon. Therefore, Exelon has not disclosed such inputs.
Interest Rate Derivatives (Exelon) Exelon may utilize fixed-to-floating or floating-to-fixed interest rate swaps as a means to manage interest rate risk. These interest rate swaps are typically accounted for as economic hedges. In addition, Exelon may utilize interest rate derivatives to lock in interest rate levels in anticipation of future financings. These interest rate derivatives are typically designated as cash flow hedges. Exelon determines the current fair value by calculating the net present value of expected payments and receipts under the swap agreement, based on and discounted by the market's expectation of future interest rates. Additional inputs to the net present value calculation may include the contract terms, counterparty credit risk and other market parameters. As these inputs are based on observable data and valuations of similar instruments, the interest rate swaps are categorized as Level 2 in the fair value hierarchy. See Note 15 — Derivative Financial Instrumentsfor additional information on mark-to-market derivatives.
Deferred Compensation Obligations (All Registrants).  The Registrants’ deferred compensation plans allow participants to defer certain cash compensation into a notional investment account. The Registrants include such plans in other current and noncurrent liabilities in their Consolidated Balance Sheets. The value of the Registrants’ deferred compensation obligations is based on the market value of the participants’ notional investment accounts. The underlying notional investments are comprised primarily of equities, mutual funds, commingled funds, and fixed income securities which are based on directly and indirectly observable market prices. Since the deferred compensation obligations themselves are not exchanged in an active market, they are categorized as Level 2 in the fair value hierarchy.
The value of certain employment agreement obligations (which are included with the Deferred Compensation Obligation in the tables above) are based on a known and certain stream of payments to be made over time and are categorized as Level 2 within the fair value hierarchy.
Mark-to-Market Derivatives (Exelon and ComEd). On December 17, 2010, ComEd entered into several 20-year floating to fixed energy swap contracts with unaffiliated suppliers for the procurement of long-term renewable energy and associated RECs. Delivery under the contracts began in June 2012. The fair value of these swaps has been designated as a Level 3 valuation due to the long tenure of the positions and the internal modeling assumptions. The modeling assumptions include using forward power prices. See Note 15 — Derivative Financial Instruments for additional information on mark-to-market derivatives.
The following table discloses the significant unobservable inputs to the forward curve used to value mark-to-market derivatives:
Type of tradeFair Value as of December 31, 2022Fair Value as of December 31, 2021Valuation
Technique
Unobservable
Input
2022 Range & Arithmetic Average2021 Range & Arithmetic Average
Mark-to-market derivatives$(84)$(219)Discounted Cash Flow
Forward power price(a)
$34.78 -$75.71 $48.44 $28.65 -$47.10 $33.96 
__________
(a)An increase to the forward power price would increase the fair value.

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(Dollars in millions, except per share data unless otherwise noted)

Note 18 — Commitments and Contingencies
18. Commitments and Contingencies(All Registrants)
Commitments
PHI Merger Commitments (Exelon, PHI, Pepco, DPL, and ACE). Approval of the PHI Merger in Delaware, New Jersey, Maryland, and the District of Columbia was conditioned upon Exelon and PHI agreeing to certain commitments. The following amounts represent total commitment costs that have been recorded since the acquisition date and the total remaining obligations for Exelon, PHI, Pepco, DPL, and ACE as of December 31, 2022:
DescriptionExelonPHIPepcoDPLACE
Total commitments$513 $320 $120 $89 $111 
Remaining commitments(a)
52 45 39 
__________
(a)Remaining commitments extend through 2026 and include rate credits, energy efficiency programs, and delivery system modernization.
In addition, DPL has committed to conducting three RFPs to procure up to a total of 120 MWs of wind RECs for the purpose of meeting Delaware's renewable portfolio standards. DPL has completed the three required wind REC RFPs. The first 40 MW wind REC tranche was conducted in 2017 and did not result in a purchase agreement. The second 40 MW wind REC tranche was conducted in 2018 and resulted in a proposed REC purchase agreement that was approved by the DEPSC in 2019. The third and final 40 MW wind REC tranche was conducted in 2022 and did not result in a purchase agreement. On December 14, 2022, the DEPSC issued an order recognizing DPL’s completion of all obligations under this merger commitment.
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Note 18 — Commitments and Contingencies
Commercial Commitments (All Registrants). The Registrants' commercial commitments as of December 31, 2022, representing commitments potentially triggered by future events were as follows:
Expiration within
ExelonTotal202320242025202620272028 and beyond
Letters of credit$19  $17  $ $—  $—  $— $— 
Surety bonds(a)
205 203 — — — — 
Financing trust guarantees378  — — — — — 378 
Guaranteed lease residual values(b)
29 — 
Total commercial commitments$631  $220  $10  $ $$$386 
ComEd
Letters of credit$12 $10 $$— $— $— $— 
Surety bonds(a)
46 44 — — — — 
Financing trust guarantees200 — — — — — 200 
Total commercial commitments$258  $54  $ $—  $— $— $200 
PECO
Letters of credit$$$— $— $— $— $— 
Surety bonds(a)
— — — — — 
Financing trust guarantees178 — — — — — 178 
Total commercial commitments$181  $ $—  $—  $— $— $178 
BGE
Letters of credit$$$— $— $— $— $— 
Surety bonds(a)
— — — — — 
Total commercial commitments$ $ $—  $—  $— $— $— 
PHI
Surety bonds(a)
$96 $96 $— $— $— $— $— 
Guaranteed lease residual values(b)
29 — 
Total commercial commitments$125  $96  $ $ $$$
Pepco
Surety bonds(a)
$84 $84 $— $— $— $— $— 
Guaranteed lease residual values(b)
10 — 
Total commercial commitments$94  $84  $ $ $$$
DPL
Surety bonds(a)
$$$— $— $— $— $— 
Guaranteed lease residual values(b)
12 — 
Total commercial commitments$19  $ $ $ $$$
ACE
Surety bonds(a)
$$$— $— $— $— $— 
Guaranteed lease residual values(b)
— 
Total commercial commitments$12  $ $ $ $$$
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Note 18 — Commitments and Contingencies
__________
(a)Surety bonds—Guarantees issued related to contract and commercial agreements, excluding bid bonds.
(b)Represents the maximum potential obligation in the event that the fair value of certain leased equipment and fleet vehicles is zero at the end of the maximum lease term. The lease term associated with these assets ranges from 1 to 8 years. The maximum potential obligation at the end of the minimum lease term would be $68 million guaranteed by Exelon and PHI, of which $22 million, $28 million, and $18 million is guaranteed by Pepco, DPL, and ACE, respectively. Historically, payments under the guarantees have not been made and PHI believes the likelihood of payments being required under the guarantees is remote.
Environmental Remediation Matters
General (All Registrants).The Registrants’ operations have in the past, and may in the future, require substantial expenditures to comply with environmental laws. Additionally, under federal and state environmental laws, the Registrants are generally liable for the costs of remediating environmental contamination of property now or formerly owned by them and of property contaminated by hazardous substances generated by them. The Registrants own or lease a number of real estate parcels, including parcels on which their operations or the operations of others may have resulted in contamination by substances that are considered hazardous under environmental laws. In addition, the Registrants are currently involved in a number of proceedings relating to sites where hazardous substances have been deposited and may be subject to additional proceedings in the future. Unless otherwise disclosed, the Registrants cannot reasonably estimate whether they will incur significant liabilities for additional investigation and remediation costs at these or additional sites identified by the Registrants, environmental agencies or others, or whether such costs will be recoverable from third parties, including customers. Additional costs could have a material, unfavorable impact on the Registrants' financial statements.
MGP Sites (All Registrants). ComEd, PECO, BGE, and DPL have identified sites where former MGP or gas purification activities have or may have resulted in actual site contamination. For some sites, there are additional PRPs that may share responsibility for the ultimate remediation of each location.
ComEd has 20 sites that are currently under some degree of active study and/or remediation. ComEd expects the majority of the remediation at these sites to continue through at least 2031.
PECO has 6 sites that are currently under some degree of active study and/or remediation. PECO expects the majority of the remediation at these sites to continue through at least 2024.
BGE has 4 sites that currently require some level of remediation and/or ongoing activity. BGE expects the majority of the remediation at these sites to continue through at least 2025.
DPL has 1 site that is currently under study and the required cost at the site is not expected to be material.
The historical nature of the MGP and gas purification sites and the fact that many of the sites have been buried and built over, impacts the ability to determine a precise estimate of the ultimate costs prior to initial sampling and determination of the exact scope and method of remedial activity. Management determines its best estimate of remediation costs using all available information at the time of each study, including probabilistic and deterministic modeling for ComEd and PECO, and the remediation standards currently required by the applicable state environmental agency. Prior to completion of any significant clean up, each site remediation plan is approved by the appropriate state environmental agency.
ComEd, pursuant to an ICC order, and PECO, pursuant to a PAPUC order, are currently recovering environmental remediation costs of former MGP facility sites through customer rates. While BGE and DPL do not have riders for MGP clean-up costs, they have historically received recovery of actual clean-up costs in distribution rates.
In 2022, ComEd and PECO completed an annual study of their future estimated MGP remediation requirements. The study resulted in a $60 million increase to the environmental liability and related regulatory asset for ComEd. The increase was primarily due to increased costs due to inflation and changes in remediation plans. The study did not result in a material change to the environmental liability for PECO.
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Note 18 — Commitments and Contingencies
As of December 31, 2022 and 2021, the Registrants had accrued the following undiscounted amounts for environmental liabilities in Accrued expenses, Other current liabilities, and Other deferred credits and other liabilities in their respective Consolidated Balance Sheets:
December 31, 2022December 31, 2021
Total environmental
investigation and
remediation liabilities
Portion of total related to
MGP investigation and
remediation
Total environmental
investigation and
remediation liabilities
Portion of total related to
MGP investigation and
remediation
Exelon$409 $355 $352 $303 
ComEd325 324 279 279 
PECO25 23 22 20 
BGE
PHI46 — 42 — 
Pepco44 — 40 — 
DPL— — 
ACE— — 
Benning Road Site (Exelon, PHI, and Pepco). In September 2010, PHI received a letter from EPA identifying the Benning Road site as one of six land-based sites potentially contributing to contamination of the lower Anacostia River. A portion of the site, which is owned by Pepco, was formerly the location of an electric generating facility owned by Pepco subsidiary, Pepco Energy Services (PES), which became a part of Generation, following the 2016 merger between PHI and Exelon. This generating facility was deactivated in June 2012. The remaining portion of the site consists of a Pepco transmission and distribution service center that remains in operation. In December 2011, the U.S. District Court for the District of Columbia approved a Consent Decree entered into by Pepco and Pepco Energy Services (hereinafter "Pepco Entities") with the DOEE, which requires the Pepco Entities to conduct a Remedial Investigation and Feasibility Study (RI/FS) for the Benning Road site and an approximately 10 to 15-acre portion of the adjacent Anacostia River. The purpose of this RI/FS is to define the nature and extent of contamination from the Benning Road site and to evaluate remedial alternatives.
Pursuant to an internal agreement between the Pepco Entities, since 2013, Pepco has performed the work required by the Consent Decree and has been reimbursed for that work by an agreed upon allocation of costs between the Pepco Entities. In September 2019, the Pepco Entities issued a draft “final” RI report which DOEE approved on February 3, 2020. The Pepco Entities are completing a FS to evaluate possible remedial alternatives for submission to DOEE. In October, 2022, DOEE approved dividing the work to complete the landside portion of the FS from the waterside portion to expedite the overall schedule for completion of the project. After completion and approval of the landside FS, now scheduled for September 2023, DOEE will prepare a Proposed Plan for public comment and then issue a Record of Decision (ROD) identifying any further response actions determined to be necessary to address any landside issues. The DOEE will issue a separate ROD for the waterside FS when that work is completed which is now anticipated to be by March 31, 2024.
As part of the separation between Exelon and Constellation in February 2022, the internal agreement between the Pepco Entities for completion and payment for the remaining Consent Decree work was memorialized in a formal agreement for post-separation activities. A second post-separation assumption agreement between Exelon and Constellation transferred any of the potential remaining remediation liability, if any, of PES/Generation to a non-utility subsidiary of Exelon which going forward will be responsible for those liabilities. Exelon, PHI, and Pepco have determined that a loss associated with this matter is probable and have accrued an estimated liability, which is included in the table above.
Anacostia River Tidal Reach (Exelon, PHI, and Pepco). Contemporaneous with the Benning Road site RI/FS being performed by the Pepco Entities, DOEE and NPS have been conducting a separate RI/FS focused on the entire tidal reach of the Anacostia River extending from just north of the Maryland-District of Columbia boundary line to the confluence of the Anacostia and Potomac Rivers. The river-wide RI incorporated the results of the river sampling performed by the Pepco Entities as part of the Benning RI/FS, as well as similar sampling efforts conducted by owners of other sites adjacent to this segment of the river and supplemental river sampling conducted by DOEE’s contractor.
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Note 18 — Commitments and Contingencies
On September 30, 2020, DOEE released its Interim ROD. The Interim ROD reflects an adaptive management approach which will require several identified “hot spots” in the river to be addressed first while continuing to conduct studies and to monitor the river to evaluate improvements and determine potential future remediation plans. The adaptive management process chosen by DOEE is less intrusive, provides more long-term environmental certainty, is less costly, and allows for site specific remediation plans already underway, including the plan for the Benning Road site to proceed to conclusion.
On July 15, 2022, Pepco received a letter from the District of Columbia's Office of the Attorney General (D.C. OAG) on behalf of DOEE conveying a settlement offer to resolve all PRPs' liability to the District of Columbia (District) for their past costs and their anticipated future costs to complete the work for the Interim ROD. Pepco responded on July 27, 2022 to enter into settlement discussions. Since that time Exelon and the other PRP’s at the site have exchanged letters with the D.C. OAG exploring potential settlement options. Those discussions are ongoing. Exelon, PHI, and Pepco have determined that it is probable that costs for remediation will be incurred and have accrued a liability for management's best estimate of its share of the costs. Pepco concluded that incremental exposure remains reasonably possible, but management cannot reasonably estimate a range of loss beyond the amounts recorded, which are included in the table above.
In addition to the activities associated with the remedial process outlined above, CERCLA separately requires federal and state (here including Washington, D.C.) Natural Resource Trustees (federal or state agencies designated by the President or the relevant state, respectively, or Indian tribes) to conduct an assessment of any damages to natural resources within their jurisdiction as a result of the contamination that is being remediated. The Trustees can seek compensation from responsible parties for such damages, including restoration costs. During the second quarter of 2018, Pepco became aware that the Trustees are in the beginning stages of a Natural Resources Damages (NRD) assessment, a process that often takes many years beyond the remedial decision to complete. Pepco has entered into negotiations with the Trustees to evaluate possible incorporation of NRD assessment and restoration as part of its remedial activities associated with the Benning site to accelerate the NRD benefits for that portion of the Anacostia River Sediment Project (ARSP) assessment. Pepco has concluded that a loss associated with the eventual NRD assessment is reasonably possible. Due to the very early stage of the assessment process, Pepco cannot reasonably estimate the final range of loss potentially resulting from this process.
As noted in the Benning Road Site disclosure above, as part of the separation of Exelon and Constellation in February 2022, an assumption agreement was executed transferring any potential future remediation liabilities associated with the Benning Site remediation to a non-utility subsidiary of Exelon. Similarly, any potential future liability associated with the ARSP was also assumed by this entity.
Buzzard Point Site (Exelon, PHI, and Pepco). On December 8, 2022, Pepco received a letter from the D.C. OAG, alleging wholly past violations of the District's stormwater discharge and waste disposal requirements related to operations at the Buzzard Point facility, a 9-acre parcel of waterfront property in Washington, D.C. occupied by an active substation and former steam plant building. The letter also alleged wholly past violations by Pepco of stormwater discharge requirements related to its district-wide system of underground vaults. The D.C. OAG invited Pepco to resolve the threatened enforcement action through a court-approved consent decree, and Pepco is engaged in discussions with the D.C. OAG regarding a potential resolution. Exelon, PHI, and Pepco have determined that a loss associated with this matter is probable and have accrued an estimated liability. Due to the very early stage of the assessment process, Pepco concluded that incremental exposure is reasonably possible, but the range of loss cannot be reasonably estimated beyond the amounts included in the table above.
Litigation and Regulatory Matters
Fund Transfer Restrictions (All Registrants). Under applicable law, Exelon may borrow or receive an extension of credit from its subsidiaries. Under the terms of Exelon’s intercompany money pool agreement, Exelon can lend to, but not borrow from the money pool.
Under applicable law, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE can pay dividends only from retained, undistributed or current earnings. A significant loss recorded at ComEd, PECO, BGE, PHI, Pepco, DPL, or ACE may limit the dividends that these companies can distribute to Exelon.
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Note 18 — Commitments and Contingencies
ComEd has agreed in connection with financings arranged through ComEd Financing III that it will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debt securities issued to ComEd Financing III; (2) it defaults on its guarantee of the payment of distributions on the preferred trust securities of ComEd Financing III; or (3) an event of default occurs under the Indenture under which the subordinated debt securities are issued. No such event has occurred.
PECO has agreed in connection with financings arranged through PEC L.P. and PECO Trust IV that PECO will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debentures, which were issued to PEC L.P. or PECO Trust IV; (2) it defaults on its guarantee of the payment of distributions on the Series D Preferred Securities of PEC L.P. or the preferred trust securities of PECO Trust IV; or (3) an event of default occurs under the Indenture under which the subordinated debentures are issued. No such event has occurred.
BGE is subject to restrictions established by the MDPSC that prohibit BGE from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. No such event has occurred.
Pepco is subject to certain dividend restrictions established by settlements approved by the MDPSC and DCPSC that prohibit Pepco from paying a dividend on its common shares if (a) after the dividend payment, Pepco's equity ratio would be 48% as calculated pursuant to the MDPSC's and DCPSC's ratemaking precedents, of or (b) Pepco’s senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. No such event has occurred.
DPL is subject to certain dividend restrictions established by settlements approved by the DEPSC and MDPSC that prohibit DPL from paying a dividend on its common shares if (a) after the dividend payment, DPL's equity ratio would be 48% as calculated pursuant to the DCPSC's and MDPSC's ratemaking precedents, or (b) DPL’s corporate issuer or senior unsecured credit rating, or its equivalent, is rated by any of the three major credit rating agencies below the generally accepted definition of investment grade. No such event has occurred.
ACE is subject to certain dividend restrictions established by settlements approved by the NJBPU that prohibit ACE from paying a dividend on its common shares if (a) after the dividend payment, ACE's common equity ratio would be 48% as calculated pursuant to the NJBPU's ratemaking precedents, or (b) ACE's senior corporate issuer or senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. ACE is also subject to a dividend restriction which requires ACE to notify and obtain the prior approval of the NJBPU before dividends can be paid if its equity as a percent of its total capitalization, excluding securitization debt, falls below 30%. No such events have occurred.
DPA and Related Matters (Exelon and ComEd). Exelon and ComEd received a grand jury subpoena in the second quarter of 2019 from the U.S. Attorney’s Office for the Northern District of Illinois (USAO) requiring production of information concerning their lobbying activities in the State of Illinois. On October 4, 2019, Exelon and ComEd received a second grand jury subpoena from the USAO requiring production of records of any communications with certain individuals and entities. On October 22, 2019, the SEC notified Exelon and ComEd that it had also opened an investigation into their lobbying activities. On July 17, 2020, ComEd entered into a DPA with the USAO to resolve the USAO investigation. Under the DPA, the USAO filed a single charge alleging that ComEd improperly gave and offered to give jobs, vendor subcontracts, and payments associated with those jobs and subcontracts for the benefit of the former Speaker of the Illinois House of Representatives and the Speaker’s associates, with the intent to influence the Speaker’s action regarding legislation affecting ComEd’s interests. The DPA provides that the USAO will defer any prosecution of such charge and any other criminal or civil case against ComEd in connection with the matters identified therein for a three-year period subject to certain obligations of ComEd, including payment to the U.S. Treasury of $200 million, which was paid in November 2020. Exelon was not made a party to the DPA, and therefore the investigation by the USAO into Exelon’s activities ended with no charges being brought against Exelon. The SEC’s investigation remains ongoing and Exelon and ComEd have cooperated fully and intend to continue to cooperate fully with the SEC. Exelon and ComEd cannot predict the outcome of the SEC investigation. No loss contingency has been reflected in Exelon's and ComEd's consolidated financial statements with respect to the SEC investigation, as this contingency is neither probable nor reasonably estimable at this time.
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Note 18 — Commitments and Contingencies
Subsequent to Exelon announcing the receipt of the subpoenas, various lawsuits were filed, and various demand letters were received related to the subject of the subpoenas, the conduct described in the DPA and the SEC's investigation, including:
Four putative class action lawsuits against ComEd and Exelon were filed in federal court on behalf of ComEd customers in the third quarter of 2020 alleging, among other things, civil violations of federal racketeering laws. In addition, the Citizens Utility Board (CUB) filed a motion to intervene in these cases on October 22, 2020 which was granted on December 23, 2020. On December 2, 2020, the court appointed interim lead plaintiffs in the federal cases which consisted of counsel for three of the four federal cases. These plaintiffs filed a consolidated complaint on January 5, 2021. CUB also filed its own complaint against ComEd only on the same day. The remaining federal case, Potter, et al. v. Exelon et al, differed from the other lawsuits as it named additional individual defendants not named in the consolidated complaint. However, the Potter plaintiffs voluntarily dismissed their complaint without prejudice on April 5, 2021. ComEd and Exelon moved to dismiss the consolidated class action complaint and CUB’s complaint on February 4, 2021 and briefing was completed on March 22, 2021. On March 25, 2021, the parties agreed, along with state court plaintiffs, discussed below, to jointly engage in mediation. The parties participated in a one-day mediation on June 7, 2021 but no settlement was reached. On September 9, 2021, the federal court granted Exelon’s and ComEd’s motion to dismiss and dismissed the plaintiffs’ and CUB’s federal law claim with prejudice. The federal court also dismissed the related state law claims made by the federal plaintiffs and CUB on jurisdictional grounds. Plaintiffs appealed dismissal of the federal law claim to the Seventh Circuit Court of Appeals. Plaintiffs and CUB also refiled their state law claims in state court and moved to consolidate them with the already pending consumer state court class action, discussed below. On August 22, 2022, the Seventh Circuit affirmed the dismissal of the consolidated federal cases in their entirety. The time to further appeal has passed and the Seventh Circuit’s decision is final.
Three putative class action lawsuits against ComEd and Exelon were filed in Illinois state court in the third quarter of 2020 seeking restitution and compensatory damages on behalf of ComEd customers. The cases were consolidated into a single action in October of 2020. In November 2020, CUB filed a motion to intervene in the cases pursuant to an Illinois statute allowing CUB to intervene as a party or otherwise participate on behalf of utility consumers in any proceeding which affects the interest of utility consumers. On November 23, 2020, the court allowed CUB’s intervention, but denied CUB's request to stay these cases. Plaintiffs subsequently filed a consolidated complaint, and ComEd and Exelon filed a motion to dismiss on jurisdictional and substantive grounds on January 11, 2021. Briefing on that motion was completed on March 2, 2021. The parties agreed, on March 25, 2021, along with the federal court plaintiffs discussed above, to jointly engage in mediation. The parties participated in a one-day mediation on June 7, 2021 but no settlement was reached. On December 23, 2021, the state court granted ComEd and Exelon’s motion to dismiss with prejudice. On December 30, 2021, plaintiffs filed a motion to reconsider that dismissal and for permission to amend their complaint. The court denied the plaintiffs' motion on January 21, 2022. Plaintiffs have appealed the court's ruling dismissing their complaint to the First District Court of Appeals. On February 15, 2022, Exelon and ComEd moved to dismiss the federal plaintiffs' refiled state law claims, seeking dismissal on the same legal grounds asserted in their motion to dismiss the original state court plaintiffs' complaint. The court granted dismissal of the refiled state claims on February 16, 2022. The original federal plaintiffs appealed that dismissal on February 18, 2022. The two state appeals were consolidated on March 21, 2022. Plaintiffs' opening appellate brief was filed on August 5, 2022. Exelon and ComEd's response was filed on November 18, 2022. Plaintiffs filed their reply brief on January 13, 2023.
On November 3, 2022, a plaintiff filed a complaint with the Lake County, Illinois Circuit Court against ComEd and Exelon for unjust enrichment and deceptive business practices in connection with the conduct giving rise to the DPA. Plaintiff seeks an accounting and disgorgement of any benefits ComEd allegedly obtained from said conduct. ComEd and Exelon filed a motion to dismiss the Complaint on February 3, 2023. Plaintiff’s response is due March 3, 2023, and ComEd and Exelon’s reply is due March 24, 2023. Oral argument on the motion to dismiss is currently set for April 21, 2023. Plaintiffs served initial discovery requests on ComEd in December 2022, to which ComEd has responded.
A putative class action lawsuit against Exelon and certain officers of Exelon and ComEd was filed in federal court in December 2019 alleging misrepresentations and omissions in Exelon’s SEC filings related to ComEd’s lobbying activities and the related investigations. The complaint was amended on
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Note 18 — Commitments and Contingencies
September 16, 2020, to dismiss two of the original defendants and add other defendants, including ComEd. Defendants filed a motion to dismiss in November 2020. The court denied the motion in April 2021. On May 26, 2021, defendants moved the court to certify its order denying the motion to dismiss for interlocutory appeal. Briefing on the motion was completed in June 2021. That motion was denied on January 28, 2022. In May 2021, the parties each filed respective initial discovery disclosures. On June 9, 2021, defendants filed their answer and affirmative defenses to the complaint and the parties engaged thereafter in discovery. On September 9, 2021, the U.S. government moved to intervene in the lawsuit and stay discovery until the parties entered into an amendment to their protective order that would prohibit the parties from requesting discovery into certain matters, including communications with the U.S. government. The court ordered said amendment to the protective order on November 15, 2021 and discovery resumed. The court further amended the protective order on October 17, 2022 and extended it until May 15, 2023. The next court status is set for May 8, 2023. Discovery remains ongoing.
Several shareholders have sent letters to the Exelon Board of Directors from 2020 through May 2022 demanding, among other things, that the Exelon Board of Directors investigate and address alleged breaches of fiduciary duties and other alleged violations by Exelon and ComEd officers and directors related to the conduct described in the DPA. In the first quarter of 2021, the Exelon Board of Directors appointed a Special Litigation Committee (SLC) consisting of disinterested and independent parties to investigate and address these shareholders' allegations and make recommendations to the Exelon Board of Directors based on the outcome of the SLC's investigation. In July 2021, one of the demand letter shareholders filed a derivative action against current and former Exelon and ComEd officers and directors, and against Exelon, as nominal defendant, asserting the same claims made in its demand letter. On October 12, 2021, the parties to the derivative action filed an agreed motion to stay that litigation for 120 days in order to allow the SLC to continue its investigation, which the court granted. The stay has been extended, by agreement of the parties several times and is currently in effect until March 17, 2023. The Parties have scheduled a mediation of this action for February 2023.
Two separate shareholder requests seeking review of certain Exelon books and records were received in August 2021 and January 2022. Exelon responded to both requests and both shareholders have since sent formal shareholder demands to the Exelon Board, as discussed above.
No loss contingencies have been reflected in Exelon’s and ComEd’s consolidated financial statements with respect to these matters, as such contingencies are neither probable nor reasonably estimable at this time.
In August 2022, the ICC concluded its investigation initiated on August 12, 2021 into rate impacts of conduct admitted in the DPA, including the costs recovered from customers related to the DPA and Exelon's funding of the fine paid by ComEd. On August 17, 2022, the ICC issued its final order accepting ComEd's voluntary customer refund offer of approximately $38 million (of which about $31 million is ICC jurisdictional; the remaining balance is FERC jurisdictional) that resolves the question of whether customer funds were used for DPA related activities. The customer refund includes the cost of every individual or entity that was either (i) identified in the DPA or (ii) identified by ComEd as an associate of the former Speaker of the Illinois House of Representatives in the ICC proceeding. The ICC rejected an argument by the Illinois Attorney General, City of Chicago, and CUB that a costly permanent adjustment also needed to be made to ComEd's ratemaking capital structure on account of Exelon having funded ComEd's payment of the DPA fine with an equity infusion. On October 6, the ICC denied the application for rehearing filed by the Illinois Attorney General, City of Chicago, and CUB that specifically focused on their capital structure argument. The window to file an appeal on the ICC final order has expired and the ICC’s DPA investigation is now closed. An accrual for the amount of the voluntary customer refund has been recorded in Regulatory liabilities and Regulatory assets in Exelon’s and ComEd’s Consolidated Balance Sheets as of December 31, 2022. The ICC jurisdictional refund must be made in April 2023; the FERC jurisdictional refund will be made as part of the next transmission formula rate update proceeding in 2023. The customer refund will not be recovered in rates or charged to customers and ComEd will not seek or accept reimbursement or indemnification from any source other than Exelon.
Savings Plan Claim (Exelon). On December 6, 2021, seven current and former employees filed a putative ERISA class action suit in U.S. District Court for the Northern District of Illinois against Exelon, its Board of Directors, the former Board Investment Oversight Committee, the Corporate Investment Committee, individual defendants, and other unnamed fiduciaries of the Exelon Corporation Employee Savings Plan (Plan). The complaint alleges that the defendants violated their fiduciary duties under the Plan by including certain investment options that allegedly were more expensive than and underperformed similar passively-managed or
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Note 18 — Commitments and Contingencies
other funds available in the marketplace and permitting a third-party administrative service provider/recordkeeper and an investment adviser to charge excessive fees for the services provided. The plaintiffs seek declaratory, equitable and monetary relief on behalf of the Plan and participants. On February 16, 2022, the court granted the parties' stipulated dismissal of the individual named defendants without prejudice. The remaining defendants filed a motion to dismiss the complaint on February 25, 2022. On March 4, 2022, the Chamber of Commerce filed a brief of amicus curiae in support of the defendants' motion to dismiss. On September 22, 2022, the court granted Exelon’s motion to dismiss without prejudice. The court granted plaintiffs leave until October 31, 2022 to file an amended complaint, which was later extended to November 30, 2022. Plaintiffs filed their amended complaint on November 30, 2022. Defendants filed their motion to dismiss the amended complaint on January 20, 2023. Plaintiffs' response is due February 17, 2023, and defendants' reply is due February 24, 2023. No loss contingencies have been reflected in Exelon’s consolidated financial statements with respect to this matter, as such contingencies are neither probable nor reasonably estimable at this time.
General (All Registrants). The Registrants are involved in various other litigation matters that are being defended and handled in the ordinary course of business. The Registrants are also from time to time subject to audits and investigations by the FERC and other regulators. The assessment of whether a loss is probable or reasonably possible, and whether the loss or a range of loss is estimable, often involves a series of complex judgments about future events. The Registrants maintain accruals for such losses that are probable of being incurred and subject to reasonable estimation. Management is sometimes unable to estimate an amount or range of reasonably possible loss, particularly where (1) the damages sought are indeterminate, (2) the proceedings are in the early stages, or (3) the matters involve novel or unsettled legal theories. In such cases, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss.

19. Shareholders' Equity (All Registrants)
Equity Securities Offering (Exelon)
On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering (the “Offering”) of 11.3 million shares (the “Shares”) of its common stock, no par value (“Common Stock”). The Shares were sold to the underwriters at a price per share of $43.32. Exelon also granted the underwriters an option to purchase an additional 1.695 million shares of Common Stock also at the price per share of $43.32. On August 5, 2022, the underwriters exercised the option in full. The net proceeds from the Offering and the exercise of the underwriters’ option were $563 million before expenses paid by Exelon. Exelon used the proceeds, together with available cash balances, to repay $575 million in borrowings under a $1.15 billion term loan credit facility. See Note 16 — Debt and Credit Agreements for additional information on Exelon’s term loan.
At-the-Market (ATM) Program(Exelon)
On August 4, 2022, Exelon executed an equity distribution agreement (“Equity Distribution Agreement”), with certain sales agents and forward sellers and certain forward purchasers, establishing an ATM equity distribution program under which it may offer and sell shares of its Common Stock, having an aggregate gross sales price of up to $1.0 billion. Exelon has no obligation to offer or sell any shares of Common Stock under the Equity Distribution Agreement and may, at any time, suspend or terminate offers and sales under the Equity Distribution Agreement. As of December 31, 2022, Exelon has not issued any shares of Common Stock under the ATM program and has not entered into any forward sale agreements.
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Note 19 — Shareholders' Equity
ComEd Common Stock Warrants
The following table presents common stock authorized and outstanding as of December 31, 2017 and 2016:
     December 31,
     2017 2016
 Par Value Shares Authorized Shares Outstanding
Common Stock       
Exelonno par value
 2,000,000,000
 963,335,888
 924,035,059
ComEd$12.50
 250,000,000
 127,021,246
 127,017,157
PECOno par value
 500,000,000
 170,478,507
 170,478,507
BGEno par value
 1,500
 1,000
 1,000
Pepco$0.01
 200,000,000
 100
 100
DPL$2.25
 1,000
 1,000
 1,000
ACE$3.00
 25,000,000
 8,546,017
 8,546,017
ComEd had 60,584 and 72,859 warrants outstanding to purchase ComEd common stock at December 31, 2017 and 2016, respectively.shares of common stock reserved for the conversion of warrants. The warrants entitle the holders to convert such warrants into common stock of ComEd at a conversion rate of one share of common stock for three warrants. At December 31, 2017 and 2016, 20,195 and 24,286 shares of common stock, respectively, were reserved for the conversion of warrants.
Equity Securities Offering
December 31,
20222021
Warrants outstanding60,052 60,061 
Common Stock reserved for conversion20,017 20,020 
In June 2014, Exelon marketed an equity offering of 57.5 million shares of its common stock at a public offering price of $35 per share. In connection with such offering, Exelon entered into forward sale agreements with two counterparties. In July 2015, Exelon settled the forward sale agreement by the issuance of 57.5 million shares of Exelon common stock. Exelon received net cash proceeds of $1.87 billion, which was calculated based on a forward price of $32.48 per share as specified in the forward sale agreements. The net proceeds were used to fund the merger with PHI and related costs and expenses, and for general corporate purposes. The forward sale agreements are classified as equity transactions. As a result, no amounts were recorded in the consolidated financial statements until the July 2015 settlement of the forward sale agreements. However, prior to the July 2015 settlement, incremental shares, if any, were included within the calculation of diluted EPS using the treasury stock method.
Concurrent with the forward equity transaction, Exelon also issued $1.15 billion of junior subordinated notes in the form of 23 million equity units. On June 1, 2017, Exelon settled the forward

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

purchase contract, which was a component of the June 2014 equity units, through the issuance of Exelon common stock from treasury stock. See Note 13 — Debt and Credit Agreements for further information on the equity units.
Share Repurchases
Share Repurchase Programs
There currently is no Exelon Board of Director authority to repurchase shares. Any previous shares repurchased are held as treasury shares, at cost, unless cancelled or reissued at the discretion of Exelon’s management. Under the previous share repurchase programs, 2 million and 35 million shares of common stock were held as treasury stock with a historical cost of $123 million and $2.3 billion at December 31, 2017 and 2016, respectively. During 2017, Exelon issued approximately 33 million shares of Exelon common stock from treasury stock in order to settle the forward purchase contract, which was a component of the June 2014 equity units discussed above. During 2016 and 2015, Exelon had no common stock repurchases.
Preferred and Preference Securities of Subsidiaries
At December 31, 2017The following table presents Exelon, ComEd, PECO, BGE, Pepco, and 2016, Exelon was authorized to issue up to 100,000,000ACE's shares of preferred securities authorized, none of which were outstanding.
Atoutstanding, as of December 31, 20172022 and 2016, ComEd prior2021. There are no shares of preferred securities authorized for DPL.
Preferred Securities Authorized
Exelon100,000,000 
ComEd850,000 
PECO15,000,000 
BGE1,000,000 
Pepco6,000,000 
ACE(a)
2,799,979 
_________
(a)Includes 799,979 shares of cumulative preferred stock and ComEd cumulative2,000,000 of no-par preferred stock as of December 31, 2022 and 2021.
The following table presents ComEd's, BGE's, and ACE's preference securities consisted of 850,000 shares and 6,810,451 shares authorized, respectively, none of which were outstanding.
BGE had $190 millionoutstanding as of cumulative preference stock that was redeemable at its option at any time after October 1, 2015 for the redemption price of $100 per share, plus accruedDecember 31, 2022 and unpaid dividends. On July 3, 2016, BGE redeemed all 400,0002021. There are no shares of its outstanding 7.125% Cumulative Preference Stock, 1993 Seriespreference securities authorized for Exelon, PECO, Pepco, and all 600,000DPL.
Preference Securities Authorized
ComEd6,810,451 
BGE(a)
6,500,000 
ACE3,000,000 
__________
(a)Includes 4,600,000 shares of its outstanding 6.990% Cumulative Preference Stock, 1995 Series for $100 million, plus accruedunclassified preference securities and unpaid dividends. On September 18, 2016, BGE redeemed the remaining 500,0001,900,000 shares of its outstanding 6.970% Cumulative Preference Stock, 1993 Seriespreviously redeemed preference securities as of December 31, 2022 and the remaining 400,000 shares of its outstanding 6.700% Cumulative Preference Stock, 1993 Series for $90 million, plus accrued and unpaid dividends.2021.

20. Stock-Based Compensation Plans (All Registrants)
Stock-Based Compensation Plans
Exelon grants stock-based awards through its LTIP, which primarily includes stock options,performance share awards, restricted stock units, and performance share awards.stock options. At December 31, 2017,2022, there were approximately 1334 million shares authorized for issuance under the LTIP. For the years ended December 31, 2017, 20162022, 2021, and 2015,2020, exercised and distributed stock-based awards were primarily issued from authorized but unissued common stock shares.
ComEd, PECO, BGESeparation-related Adjustments. In connection with the separation, Exelon and PHIConstellation entered into an Employee Matters Agreement, effective February 1, 2022. Under the terms of the Employee Matters Agreement,
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Note 20 — Stock-Based Compensation Plans
and pursuant to the terms of the LTIP, the Compensation Committee of the Board of Exelon approved an adjustment to outstanding awards granted under the LTIP in order to preserve the intrinsic aggregate value of such awards before the separation. The separation-related adjustments did not have a material impact on either compensation expense or the potentially dilutive securities to be considered in the calculation of diluted earnings per share of common stock. Former Exelon employees transferred to Constellation as a result of the separation surrendered their outstanding unvested Exelon awards effective February 1, 2022.
The Registrants grant cash awards. The following tables dotable does not include expense related to these plans as they are not considered stock-based compensation plans under the applicable authoritative guidance.
In connection with the acquisition of PHI in March 2016, PHI’s unvested time-based restricted stock units and performance-based restricted stock units issued prior to April 29, 2014 were immediately vested and paid in cash upon the close of the merger.  PHI’s remaining unvested time-based restricted stock units as of the close of the merger were cancelled.  There were no remaining unvested performance-based restricted stock units as of the close of the merger.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

For the years ended December 31, 2017, 2016 and 2015, there were no significant modifications to the granted stock based awards.guidance.
The following tables presenttable presents the stock-based compensation expense included in Exelon's and PHI’s Consolidated Statements of Operations and Comprehensive IncomeIncome. The Utility Registrants' stock-based compensation expense for the years ended December 31, 2017, 20162022, 2021, and 2015 and PHI's predecessor periods January 1, 2016 to March 23, 2016 and the year ended December 31, 2015:2020 was not material.
Exelon
Year Ended
December 31,
Components of Stock-Based Compensation Expense2017 
2016(a)
 2015
Performance share awards$107
 $93
 $41
Restricted stock units77
 75
 71
Stock options
 
 1
Other stock-based awards7
 7
 6
Total stock-based compensation expense included in operating and maintenance expense191
 175
 119
Income tax benefit(74) (68) (46)
Total after-tax stock-based compensation expense$117
 $107
 $73
__________
(a)2016 amounts include expense related to stock-based compensation granted to eligible PHI employees since the merger date of March 23, 2016.
PHI
 Predecessor
 January 1 to March 23, Year Ended
December 31,
Components of Stock-Based Compensation Expense2016 2015
Time-based restricted stock units$2
 $7
Performance-based restricted stock units1
 5
Time-based restricted stock awards
 1
Total stock-based compensation expense included in operating and
maintenance expense
3
 13
Income tax benefit(1) (5)
Total after-tax stock-based compensation expense$2
 $8

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following tables present the Registrants' stock-based compensation expense (pre-tax) for the years ended December 31, 2017, 2016 and 2015, as well as for the PHI predecessor periods January 1, 2016 to March 23, 2016 and the year ended December 31, 2015:
 
Year Ended
December 31,
Subsidiaries2017 2016 2015
Exelon$191
 $175
 $119
Generation88
 78
 64
ComEd7
 8
 6
PECO3
 3
 3
BGE1
 1
 3
BSC(a)
88
 81
 43
PHI Successor(b)(c)
4
 4
 
 Predecessor
 January 1 to
March 23,
 For the Year Ended December 31,
 2016 2015
PHI$3
 $13
__________
(a)These amounts primarily represent amounts billed to Exelon’s subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO, BGE or PHI amounts above.
(b)Pepco's, DPL's and ACE's stock-based compensation expense for the years ended December 31, 2017 and 2016 was not material.
(c)These amounts primarily represent amounts billed to PHI’s subsidiaries through PHISCO intercompany allocations.
There were no significant stock-based compensation costs capitalized during the years ended December 31, 2017, 2016 and 2015 for Exelon or PHI, or for PHI during the predecessor period January 1, 2016 to March 23, 2016.
Year Ended December 31,
Exelon202220212020
Total stock-based compensation expense included in operating and maintenance expense$41 $95 $37 
Income tax benefit(10)(25)(9)
Total after-tax stock-based compensation expense$31 $70 $28 
Exelon and PHI receivereceives a tax deduction based on the intrinsic value of the award on the exercise date for stock options and the distribution date for performance share awards and restricted stock units. For each award, throughout the requisite service period, Exelon and PHI recognizerecognizes the tax benefit related to compensation costs. The following tables presenttable presents information regarding Exelon’s and PHI'srealized tax benefits for the years ended December 31, 2017, 2016 and 2015 and PHI's predecessor periods January 1, 2016 to March 23, 2016 and the year ended December 31, 2015:benefit when distributed:
Year Ended December 31,
202220212020
Performance share awards$$$15 
Restricted stock units
ExelonYear Ended December 31,
 2017 2016 2015
Realized tax benefit when exercised/distributed:     
Restricted stock units35
 27
 30
Performance share awards29
 18
 18

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PHI
 Predecessor
 January 1 to
March 23,
 For the Year Ended December 31,
 2016 2015
Realized tax benefit when exercised/distributed:   
Time-based restricted stock units$
 $2
Performance-based restricted stock units
 5
Stock Options
Non-qualified stock options to purchase shares of Exelon’s common stock were granted under the LTIP through 2012. Due to changes in the LTIP, there were no stock options granted in 2017, 2016 or 2015. For all stock options granted through 2012, the exercise price of the stock options is equal to the fair market value of the underlying stock on the date of option grant. The vesting period of stock options is generally four years and all stock options will expire no later than ten years from the date of grant.
The value of stock options at the date of grant is expensed over the requisite service period using the straight-line method. The requisite service period for stock options is generally four years. However, certain stock options become fully vested upon the employee reaching retirement-eligibility. The value of the stock options granted to retirement-eligible employees is either recognized immediately upon the date of grant or through the date at which the employee reaches retirement eligibility.
The following table presents information with respect to stock option activity for the year ended December 31, 2017:
 Shares 
Weighted
Average
Exercise
Price
(per share)
 
Weighted
Average
Remaining
Contractual
Life
(years)
 
Aggregate
Intrinsic
Value
Balance of shares outstanding at December 31, 201612,531,591
 $46.23
 3.50 $13
Options exercised(3,093,156) 34.69
    
Options forfeited
 
    
Options expired(2,714,824) 55.78
    
Balance of shares outstanding at December 31, 20176,723,611
 $47.69
 2.65 $7
Exercisable at December 31, 2017(a)
6,723,611
 $47.69
 2.65 $7
__________
(a)Includes stock options issued to retirement eligible employees.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

The following table summarizes additional information regarding stock options exercised for the years ended December 31, 2017, 2016 and 2015:
 Year Ended
December 31,
 2017 2016 2015
Intrinsic value(a)
$15
 $11
 $
Cash received for exercise price107
 19
 
__________
(a)The difference between the market value on the date of exercise and the option exercise price.
At December 31, 2016, all stock options were vested and at December 31, 2017 there were no unrecognized compensation costs related to nonvested stock options.
Restricted Stock Units
Restricted stock units are granted under the LTIP with the majority being settled in a specific number of shares of common stock after the service condition has been met. The corresponding cost of services is measured based on the grant date fair value of the restricted stock unit issued.
The value of the restricted stock units is expensed over the requisite service period using the straight-line method. The requisite service period for restricted stock units is generally three to five years. However, certain restricted stock unit awards become fully vested upon the employee reaching retirement-eligibility. The value of the restricted stock units granted to retirement-eligible employees is either recognized immediately upon the date of grant or through the date at which the employee reaches retirement eligibility. Exelon processes forfeitures as they occur for employees who do not complete the requisite service period.
The following table summarizes Exelon’s nonvested restricted stock unit activity for the year ended December 31, 2017:
Exelon
 Shares 
Weighted Average
Grant Date Fair
Value (per share)
Nonvested at December 31, 2016(a)(c)
3,824,416
 $30.49
Granted2,266,199
 34.98
Vested(1,736,965) 30.98
Forfeited(92,938) 33.12
Undistributed vested awards (b)
(871,209) 34.09
Nonvested at December 31, 2017(a)
3,389,503
 $32.24
__________
(a)Excludes 1,488,383 and 1,319,372 of restricted stock units issued to retirement-eligible employees as of December 31, 2017 and 2016, respectively, as they are fully vested.
(b)Represents restricted stock units that vested but were not distributed to retirement-eligible employees during 2017.
(c)2016 amounts include activity related to stock-based compensation granted to eligible PHI employees since the merger date of March 23, 2016.
For Exelon, the weighted average grant date fair value (per share) of restricted stock units granted for the years ended December 31, 2017, 2016 and 2015 was $34.98, $28.14 and $36.55, respectively. At December 31, 2017 and 2016, Exelon had obligations related to outstanding restricted stock units not yet settled of $108 million and $101 million, respectively, which are included in common stock in Exelon’s Consolidated Balance Sheets. For the years ended December 31, 2017, 2016 and 2015, Exelon

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

settled restricted stock units with fair value totaling $88 million, $68 million and $75 million, respectively. At December 31, 2017, $51 million of total unrecognized compensation costs related to nonvested restricted stock units are expected to be recognized over the remaining weighted-average period of 1.7 years.
For PHI, the weighted average grant date fair value (per share) of time-based restricted stock units granted for the year ended December 31, 2015 was $27.40 and for performance-based restricted stock units was $26.08 for the same period. For the year ended December 31, 2015, PHI settled time-based restricted stock units with fair value totaling $6 million and settled performance-based restricted stock units with fair value totaling $15 million, for the same period. There were no settled restricted stock units for the predecessor period January 1, 2016 to March 23, 2016.
Performance Share AwardsLitigation and Regulatory Matters
Performance share awards are granted underFund Transfer Restrictions (All Registrants). Under applicable law, Exelon may borrow or receive an extension of credit from its subsidiaries. Under the LTIP. The performance share awards are settled 50% in common stockterms of Exelon’s intercompany money pool agreement, Exelon can lend to, but not borrow from the money pool.
Under applicable law, ComEd, PECO, BGE, PHI, Pepco, DPL, and 50% in cashACE can pay dividends only from retained, undistributed or current earnings. A significant loss recorded at ComEd, PECO, BGE, PHI, Pepco, DPL, or ACE may limit the enddividends that these companies can distribute to Exelon.
252




Table of the three-year performance period, except for awards granted to vice presidents and higher officers that are settled 100% in cash if certain ownership requirements are satisfied.
The common stock portion of the performance share awards is considered an equity award and is valued based on Exelon's stock price on the grant date. The cash portion of the performance share awards is considered a liability award which is remeasured each reporting period based on Exelon’s current stock price. As the value of the common stock and cash portions of the awards are based on Exelon’s stock price during the performance period, coupled with changes in the total shareholder return modifier and expected payout of the award, the compensation costs are subject to volatility until payout is established.
Effective January 2017 for nonretirement-eligible employees, stock-based compensation costs are recognized over the vesting period of three years using the straight-line method. For performance share awards granted to retirement-eligible employees, the value of the performance shares is recognized ratably over the vesting period, which is the year of grant.
In 2016 and prior, for nonretirement-eligible employees, stock-based compensation costs are recognized over the vesting period of three years using the graded-vesting method. For performance share awards granted to retirement-eligible employees, the value of the performance shares is recognized ratably over the vesting period, which is the year of grant.
Exelon processes forfeitures as they occur for employees who do not complete the requisite service period.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 18 — Commitments and Contingencies
The following table summarizes Exelon’s nonvested performance share awards activityComEd has agreed in connection with financings arranged through ComEd Financing III that it will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debt securities issued to ComEd Financing III; (2) it defaults on its guarantee of the payment of distributions on the preferred trust securities of ComEd Financing III; or (3) an event of default occurs under the Indenture under which the subordinated debt securities are issued. No such event has occurred.
PECO has agreed in connection with financings arranged through PEC L.P. and PECO Trust IV that PECO will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debentures, which were issued to PEC L.P. or PECO Trust IV; (2) it defaults on its guarantee of the payment of distributions on the Series D Preferred Securities of PEC L.P. or the preferred trust securities of PECO Trust IV; or (3) an event of default occurs under the Indenture under which the subordinated debentures are issued. No such event has occurred.
BGE is subject to restrictions established by the MDPSC that prohibit BGE from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. No such event has occurred.
Pepco is subject to certain dividend restrictions established by settlements approved by the MDPSC and DCPSC that prohibit Pepco from paying a dividend on its common shares if (a) after the dividend payment, Pepco's equity ratio would be 48% as calculated pursuant to the MDPSC's and DCPSC's ratemaking precedents, of or (b) Pepco’s senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. No such event has occurred.
DPL is subject to certain dividend restrictions established by settlements approved by the DEPSC and MDPSC that prohibit DPL from paying a dividend on its common shares if (a) after the dividend payment, DPL's equity ratio would be 48% as calculated pursuant to the DCPSC's and MDPSC's ratemaking precedents, or (b) DPL’s corporate issuer or senior unsecured credit rating, or its equivalent, is rated by any of the three major credit rating agencies below the generally accepted definition of investment grade. No such event has occurred.
ACE is subject to certain dividend restrictions established by settlements approved by the NJBPU that prohibit ACE from paying a dividend on its common shares if (a) after the dividend payment, ACE's common equity ratio would be 48% as calculated pursuant to the NJBPU's ratemaking precedents, or (b) ACE's senior corporate issuer or senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. ACE is also subject to a dividend restriction which requires ACE to notify and obtain the prior approval of the NJBPU before dividends can be paid if its equity as a percent of its total capitalization, excluding securitization debt, falls below 30%. No such events have occurred.
DPA and Related Matters (Exelon and ComEd). Exelon and ComEd received a grand jury subpoena in the second quarter of 2019 from the U.S. Attorney’s Office for the year ended December 31, 2017:
Exelon
 Shares 
Weighted Average
Grant Date Fair
Value (per share)
Nonvested at December 31, 2016(a)(c)
3,116,261
 $30.77
Granted1,632,186
 35.00
Change in performance545,793
 30.97
Vested(1,111,751) 29.11
Forfeited(18,034) 33.74
Undistributed vested awards (b)
(1,207,489) 33.46
Nonvested at December 31, 2017(a)
2,956,966
 $32.65
__________
(a)Excludes 2,723,440 and 2,443,409 of performance share awards issued to retirement-eligible employees as of December 31, 2017 and 2016, respectively, as they are fully vested.
(b)Represents performance share awards that vested but were not distributed to retirement-eligible employees during 2017.
(c)2016 amounts include activity related to stock-based compensation granted to eligible PHI employees since the merger date of March 23, 2016.
The following table summarizesNorthern District of Illinois (USAO) requiring production of information concerning their lobbying activities in the weighted average grant date fair valueState of Illinois. On October 4, 2019, Exelon and ComEd received a second grand jury subpoena from the USAO requiring production of records of any communications with certain individuals and entities. On October 22, 2019, the SEC notified Exelon and ComEd that it had also opened an investigation into their lobbying activities. On July 17, 2020, ComEd entered into a DPA with the USAO to resolve the USAO investigation. Under the DPA, the USAO filed a single charge alleging that ComEd improperly gave and offered to give jobs, vendor subcontracts, and payments associated with those jobs and subcontracts for the benefit of the former Speaker of the Illinois House of Representatives and the fair valueSpeaker’s associates, with the intent to influence the Speaker’s action regarding legislation affecting ComEd’s interests. The DPA provides that the USAO will defer any prosecution of performance share awards grantedsuch charge and settledany other criminal or civil case against ComEd in connection with the matters identified therein for a three-year period subject to certain obligations of ComEd, including payment to the yearsU.S. Treasury of $200 million, which was paid in November 2020. Exelon was not made a party to the DPA, and therefore the investigation by the USAO into Exelon’s activities ended December 31, 2017, 2016with no charges being brought against Exelon. The SEC’s investigation remains ongoing and 2015:Exelon and ComEd have cooperated fully and intend to continue to cooperate fully with the SEC. Exelon and ComEd cannot predict the outcome of the SEC investigation. No loss contingency has been reflected in Exelon's and ComEd's consolidated financial statements with respect to the SEC investigation, as this contingency is neither probable nor reasonably estimable at this time.
253




 Year Ended
December 31,
 
2017(a)
 2016 2015
Weighted average grant date fair value (per share)$35.00
 $28.85
 $35.88
Fair value of performance shares settled72
 45
 46
Fair value of performance shares settled in cash56
 28
 29
__________
(a)As of December 31, 2017, $41 million of total unrecognized compensation costs related to nonvested performance shares are expected to be recognized over the remaining weighted-average period of 1.5 years.
For PHI, the weighted average grant date fair value (per share)Table of performance-based restricted stock awards was $26.10 for the year ended December 31, 2015. There were no time-based restricted stock awards granted for the year ended December 31, 2015. There were no time-based share settlements or performance-based share settlements for the year-ended December 31, 2015 or the predecessor period January 1, 2016 to March 23, 2016.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


The following table presents the balance sheet classification of obligations related to outstanding performance share awards not yet settled:
Note 18 — Commitments and Contingencies
 December 31,
 2017 2016
Current liabilities(a)
$57
 $49
Deferred credits and other liabilities(b)
100
 52
Common stock26
 40
Total$183
 $141
__________
(a)Represents the current liability related to performance share awards expected to be settled in cash.
(b)Represents the long-term liability related to performance share awards expected to be settled in cash.
21. Earnings Per Share (Exelon)
Basic earnings per share is computed by dividing net income attributableSubsequent to common stockholders byExelon announcing the weighted average numberreceipt of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income attributable to common shareholders by the weighted average number of common shares outstanding, including the effect of issuing common stock assuming (i) stock options are exercised,subpoenas, various lawsuits were filed, and (ii) performance share awards and restricted stock awards are fully vested under the treasury stock method.
The following table sets forth the components of basic and diluted earnings per share and shows the effect of these stock options, performance share awards and restricted stock awards on the weighted average number of shares outstanding used in calculating diluted earnings per share: 
 Year Ended December 31,
 2017 2016 2015
Net income attributable to common shareholders$3,770

$1,134

$2,269
Weighted average common shares outstanding — basic947

924

890
Assumed exercise and/or distributions of stock-based awards2
 3
 3
Weighted average common shares outstanding — diluted949

927

893
The number of stock options not included in the calculation of diluted common shares outstanding due to their antidilutive effect was approximately 8 million in 2017, 12 million in 2016, and 16 million in 2015. Therevarious demand letters were no equity unitsreceived related to the PHI merger not includedsubject of the subpoenas, the conduct described in the calculationDPA and the SEC's investigation, including:
Four putative class action lawsuits against ComEd and Exelon were filed in federal court on behalf of diluted common shares outstandingComEd customers in the third quarter of 2020 alleging, among other things, civil violations of federal racketeering laws. In addition, the Citizens Utility Board (CUB) filed a motion to intervene in these cases on October 22, 2020 which was granted on December 23, 2020. On December 2, 2020, the court appointed interim lead plaintiffs in the federal cases which consisted of counsel for three of the four federal cases. These plaintiffs filed a consolidated complaint on January 5, 2021. CUB also filed its own complaint against ComEd only on the same day. The remaining federal case, Potter, et al. v. Exelon et al, differed from the other lawsuits as it named additional individual defendants not named in the consolidated complaint. However, the Potter plaintiffs voluntarily dismissed their complaint without prejudice on April 5, 2021. ComEd and Exelon moved to dismiss the consolidated class action complaint and CUB’s complaint on February 4, 2021 and briefing was completed on March 22, 2021. On March 25, 2021, the parties agreed, along with state court plaintiffs, discussed below, to jointly engage in mediation. The parties participated in a one-day mediation on June 7, 2021 but no settlement was reached. On September 9, 2021, the federal court granted Exelon’s and ComEd’s motion to dismiss and dismissed the plaintiffs’ and CUB’s federal law claim with prejudice. The federal court also dismissed the related state law claims made by the federal plaintiffs and CUB on jurisdictional grounds. Plaintiffs appealed dismissal of the federal law claim to the Seventh Circuit Court of Appeals. Plaintiffs and CUB also refiled their state law claims in state court and moved to consolidate them with the already pending consumer state court class action, discussed below. On August 22, 2022, the Seventh Circuit affirmed the dismissal of the consolidated federal cases in their entirety. The time to further appeal has passed and the Seventh Circuit’s decision is final.
Three putative class action lawsuits against ComEd and Exelon were filed in Illinois state court in the third quarter of 2020 seeking restitution and compensatory damages on behalf of ComEd customers. The cases were consolidated into a single action in October of 2020. In November 2020, CUB filed a motion to intervene in the cases pursuant to an Illinois statute allowing CUB to intervene as a party or otherwise participate on behalf of utility consumers in any proceeding which affects the interest of utility consumers. On November 23, 2020, the court allowed CUB’s intervention, but denied CUB's request to stay these cases. Plaintiffs subsequently filed a consolidated complaint, and ComEd and Exelon filed a motion to dismiss on jurisdictional and substantive grounds on January 11, 2021. Briefing on that motion was completed on March 2, 2021. The parties agreed, on March 25, 2021, along with the federal court plaintiffs discussed above, to jointly engage in mediation. The parties participated in a one-day mediation on June 7, 2021 but no settlement was reached. On December 23, 2021, the state court granted ComEd and Exelon’s motion to dismiss with prejudice. On December 30, 2021, plaintiffs filed a motion to reconsider that dismissal and for permission to amend their complaint. The court denied the plaintiffs' motion on January 21, 2022. Plaintiffs have appealed the court's ruling dismissing their complaint to the First District Court of Appeals. On February 15, 2022, Exelon and ComEd moved to dismiss the federal plaintiffs' refiled state law claims, seeking dismissal on the same legal grounds asserted in their motion to dismiss the original state court plaintiffs' complaint. The court granted dismissal of the refiled state claims on February 16, 2022. The original federal plaintiffs appealed that dismissal on February 18, 2022. The two state appeals were consolidated on March 21, 2022. Plaintiffs' opening appellate brief was filed on August 5, 2022. Exelon and ComEd's response was filed on November 18, 2022. Plaintiffs filed their reply brief on January 13, 2023.
On November 3, 2022, a plaintiff filed a complaint with the Lake County, Illinois Circuit Court against ComEd and Exelon for unjust enrichment and deceptive business practices in connection with the conduct giving rise to the DPA. Plaintiff seeks an accounting and disgorgement of any benefits ComEd allegedly obtained from said conduct. ComEd and Exelon filed a motion to dismiss the Complaint on February 3, 2023. Plaintiff’s response is due March 3, 2023, and ComEd and Exelon’s reply is due March 24, 2023. Oral argument on the motion to their antidilutive effectdismiss is currently set for the years endedApril 21, 2023. Plaintiffs served initial discovery requests on ComEd in December 31, 20172022, to which ComEd has responded.
A putative class action lawsuit against Exelon and 2016. The numbercertain officers of equity unitsExelon and ComEd was filed in federal court in December 2019 alleging misrepresentations and omissions in Exelon’s SEC filings related to ComEd’s lobbying activities and the PHI merger not included in the calculationrelated investigations. The complaint was amended on
254




Table of diluted common shares outstanding due to their antidilutive effect was 3 million for the year ended 2015. Refer to Note 19 — Shareholders' Equity for further information regarding the equity units and equity forward units.
On June 1, 2017, Exelon settled the forward purchase contract, which was a component of the June 2014 equity units, through the issuance of approximately 33 million shares of Exelon common stock from treasury stock. The issuance of shares on June 1, 2017 triggered full dilution in the EPS calculation, which prior to settlement were included in the calculation of diluted EPS using the treasury stock method. Refer to Note 19 — Shareholders' Equity for further information regarding share repurchases.

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 18 — Commitments and Contingencies
22. ChangesSeptember 16, 2020, to dismiss two of the original defendants and add other defendants, including ComEd. Defendants filed a motion to dismiss in Accumulated Other Comprehensive Income (Exelon, Generation, PECONovember 2020. The court denied the motion in April 2021. On May 26, 2021, defendants moved the court to certify its order denying the motion to dismiss for interlocutory appeal. Briefing on the motion was completed in June 2021. That motion was denied on January 28, 2022. In May 2021, the parties each filed respective initial discovery disclosures. On June 9, 2021, defendants filed their answer and PHI)affirmative defenses to the complaint and the parties engaged thereafter in discovery. On September 9, 2021, the U.S. government moved to intervene in the lawsuit and stay discovery until the parties entered into an amendment to their protective order that would prohibit the parties from requesting discovery into certain matters, including communications with the U.S. government. The court ordered said amendment to the protective order on November 15, 2021 and discovery resumed. The court further amended the protective order on October 17, 2022 and extended it until May 15, 2023. The next court status is set for May 8, 2023. Discovery remains ongoing.
Several shareholders have sent letters to the Exelon Board of Directors from 2020 through May 2022 demanding, among other things, that the Exelon Board of Directors investigate and address alleged breaches of fiduciary duties and other alleged violations by Exelon and ComEd officers and directors related to the conduct described in the DPA. In the first quarter of 2021, the Exelon Board of Directors appointed a Special Litigation Committee (SLC) consisting of disinterested and independent parties to investigate and address these shareholders' allegations and make recommendations to the Exelon Board of Directors based on the outcome of the SLC's investigation. In July 2021, one of the demand letter shareholders filed a derivative action against current and former Exelon and ComEd officers and directors, and against Exelon, as nominal defendant, asserting the same claims made in its demand letter. On October 12, 2021, the parties to the derivative action filed an agreed motion to stay that litigation for 120 days in order to allow the SLC to continue its investigation, which the court granted. The following tables present changesstay has been extended, by agreement of the parties several times and is currently in accumulated other comprehensive income (loss) (AOCI)effect until March 17, 2023. The Parties have scheduled a mediation of this action for February 2023.
Two separate shareholder requests seeking review of certain Exelon books and records were received in August 2021 and January 2022. Exelon responded to both requests and both shareholders have since sent formal shareholder demands to the Exelon Board, as discussed above.
No loss contingencies have been reflected in Exelon’s and ComEd’s consolidated financial statements with respect to these matters, as such contingencies are neither probable nor reasonably estimable at this time.
In August 2022, the ICC concluded its investigation initiated on August 12, 2021 into rate impacts of conduct admitted in the DPA, including the costs recovered from customers related to the DPA and Exelon's funding of the fine paid by componentComEd. On August 17, 2022, the ICC issued its final order accepting ComEd's voluntary customer refund offer of approximately $38 million (of which about $31 million is ICC jurisdictional; the remaining balance is FERC jurisdictional) that resolves the question of whether customer funds were used for DPA related activities. The customer refund includes the cost of every individual or entity that was either (i) identified in the DPA or (ii) identified by ComEd as an associate of the former Speaker of the Illinois House of Representatives in the ICC proceeding. The ICC rejected an argument by the Illinois Attorney General, City of Chicago, and CUB that a costly permanent adjustment also needed to be made to ComEd's ratemaking capital structure on account of Exelon having funded ComEd's payment of the DPA fine with an equity infusion. On October 6, the ICC denied the application for rehearing filed by the Illinois Attorney General, City of Chicago, and CUB that specifically focused on their capital structure argument. The window to file an appeal on the ICC final order has expired and the ICC’s DPA investigation is now closed. An accrual for the years endedamount of the voluntary customer refund has been recorded in Regulatory liabilities and Regulatory assets in Exelon’s and ComEd’s Consolidated Balance Sheets as of December 31, 20172022. The ICC jurisdictional refund must be made in April 2023; the FERC jurisdictional refund will be made as part of the next transmission formula rate update proceeding in 2023. The customer refund will not be recovered in rates or charged to customers and 2016:ComEd will not seek or accept reimbursement or indemnification from any source other than Exelon.
Savings Plan Claim (Exelon). On December 6, 2021, seven current and former employees filed a putative ERISA class action suit in U.S. District Court for the Northern District of Illinois against Exelon, its Board of Directors, the former Board Investment Oversight Committee, the Corporate Investment Committee, individual defendants, and other unnamed fiduciaries of the Exelon Corporation Employee Savings Plan (Plan). The complaint alleges that the defendants violated their fiduciary duties under the Plan by including certain investment options that allegedly were more expensive than and underperformed similar passively-managed or
255




For the Year Ended December 31, 2017Gains and
(Losses) on
Cash Flow
Hedges

Unrealized
Gains and (losses) on
Marketable
Securities

Pension and
Non-Pension
Postretirement
Benefit Plan
Items

Foreign
Currency
Items

AOCI of
Equity
Investments

Total
Exelon(a)











Beginning balance$(17) $4
 $(2,610) $(30) $(7) $(2,660)
OCI before reclassifications(1) 6
 11
 7
 6
 29
Amounts reclassified from AOCI(b)
4
 
 140
 
 
 144
Net current-period OCI3

6

151

7

6

173
Ending balance$(14)
$10

$(2,459)
$(23)
$(1)
$(2,487)
Generation(a)









 
Beginning balance$(19) $2
 $
 $(30) $(7) $(54)
OCI before reclassifications(1) 1
 
 7
 6
 13
Amounts reclassified from AOCI(b)
4
 
 
 
 
 4
Net current-period OCI3

1



7

6

17
Ending balance$(16)
$3

$

$(23)
$(1)
$(37)
PECO(a)









 
Beginning balance$
 $1
 $
 $
 $
 $1
OCI before reclassifications
 
 
 
 
 
Amounts reclassified from AOCI(b)

 
 
 
 
 
Net current-period OCI










Ending balance$

$1

$

$

$

$1

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 18 — Commitments and Contingencies
other funds available in the marketplace and permitting a third-party administrative service provider/recordkeeper and an investment adviser to charge excessive fees for the services provided. The plaintiffs seek declaratory, equitable and monetary relief on behalf of the Plan and participants. On February 16, 2022, the court granted the parties' stipulated dismissal of the individual named defendants without prejudice. The remaining defendants filed a motion to dismiss the complaint on February 25, 2022. On March 4, 2022, the Chamber of Commerce filed a brief of amicus curiae in support of the defendants' motion to dismiss. On September 22, 2022, the court granted Exelon’s motion to dismiss without prejudice. The court granted plaintiffs leave until October 31, 2022 to file an amended complaint, which was later extended to November 30, 2022. Plaintiffs filed their amended complaint on November 30, 2022. Defendants filed their motion to dismiss the amended complaint on January 20, 2023. Plaintiffs' response is due February 17, 2023, and defendants' reply is due February 24, 2023. No loss contingencies have been reflected in Exelon’s consolidated financial statements with respect to this matter, as such contingencies are neither probable nor reasonably estimable at this time.
General (All Registrants). The Registrants are involved in various other litigation matters that are being defended and handled in the ordinary course of business. The Registrants are also from time to time subject to audits and investigations by the FERC and other regulators. The assessment of whether a loss is probable or reasonably possible, and whether the loss or a range of loss is estimable, often involves a series of complex judgments about future events. The Registrants maintain accruals for such losses that are probable of being incurred and subject to reasonable estimation. Management is sometimes unable to estimate an amount or range of reasonably possible loss, particularly where (1) the damages sought are indeterminate, (2) the proceedings are in the early stages, or (3) the matters involve novel or unsettled legal theories. In such cases, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss.

19. Shareholders' Equity (All Registrants)
Equity Securities Offering (Exelon)
On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering (the “Offering”) of 11.3 million shares (the “Shares”) of its common stock, no par value (“Common Stock”). The Shares were sold to the underwriters at a price per share of $43.32. Exelon also granted the underwriters an option to purchase an additional 1.695 million shares of Common Stock also at the price per share of $43.32. On August 5, 2022, the underwriters exercised the option in full. The net proceeds from the Offering and the exercise of the underwriters’ option were $563 million before expenses paid by Exelon. Exelon used the proceeds, together with available cash balances, to repay $575 million in borrowings under a $1.15 billion term loan credit facility. See Note 16 — Debt and Credit Agreements for additional information on Exelon’s term loan.
At-the-Market (ATM) Program(Exelon)
On August 4, 2022, Exelon executed an equity distribution agreement (“Equity Distribution Agreement”), with certain sales agents and forward sellers and certain forward purchasers, establishing an ATM equity distribution program under which it may offer and sell shares of its Common Stock, having an aggregate gross sales price of up to $1.0 billion. Exelon has no obligation to offer or sell any shares of Common Stock under the Equity Distribution Agreement and may, at any time, suspend or terminate offers and sales under the Equity Distribution Agreement. As of December 31, 2022, Exelon has not issued any shares of Common Stock under the ATM program and has not entered into any forward sale agreements.
256




For the Year Ended December 31, 2016Gains and
(Losses) on
Cash Flow
Hedges
 Unrealized
Gains and (losses) on
Marketable
Securities
 Pension and
Non-Pension
Postretirement
Benefit Plan
items
 Foreign
Currency
Items
 AOCI of
Equity
Investments
 Total
Exelon(a)
           
Beginning balance$(19)
$3

$(2,565)
$(40)
$(3) $(2,624)
OCI before reclassifications(6)
1

(182)
5

(4) (186)
Amounts reclassified from AOCI(b)
8



137

5


 150
Net current-period OCI2

1

(45)
10

(4)
(36)
Ending balance$(17)
$4

$(2,610)
$(30)
$(7)
$(2,660)
Generation(a)









 
Beginning balance$(21)
$1

$

$(40)
$(3) $(63)
OCI before reclassifications(6)
1



5

(4) (4)
Amounts reclassified from AOCI(b)
8





5


 13
Net current-period OCI2

1



10

(4)
9
Ending balance$(19)
$2

$

$(30)
$(7)
$(54)
PECO(a)









 
Beginning balance$

$1

$

$

$
 $1
OCI before reclassifications








 
Amounts reclassified from AOCI(b)









 
Net current-period OCI










Ending balance$

$1

$

$

$

$1
PHI Predecessor(a)
           
Beginning balance January 1, 2016$(8) $
 $(28) $
 $
 $(36)
OCI before reclassifications
 
 
 
 
 
Amounts reclassified from AOCI(b)

 
 1
 
 
 1
Net current-period OCI
 
 1
 
 
 1
Ending balance March 23, 2016(c)
$(8) $
 $(27) $
 $
 $(35)
__________ 
(a)All amounts are net of tax and noncontrolling interests. Amounts in parenthesis represent a decrease in AOCI.
(b)See next tables for details about these reclassifications.
(c)As a result of the PHI Merger, the PHI predecessor balances at March 23, 2016 were reduced to zero on March 24, 2016 due to purchase accounting adjustments applied to PHI.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 19 — Shareholders' Equity

ComEd Common Stock Warrants
The following table presents warrants outstanding to purchase ComEd common stock and shares of common stock reserved for the conversion of warrants. The warrants entitle the holders to convert such warrants into common stock of ComEd at a conversion rate of one share of common stock for three warrants.
December 31,
20222021
Warrants outstanding60,052 60,061 
Common Stock reserved for conversion20,017 20,020 
Share Repurchases
There currently is no Exelon Board of Director authority to repurchase shares. Any previous shares repurchased are held as treasury shares, at cost, unless cancelled or reissued at the discretion of Exelon’s management.
Preferred and Preference Securities
The following table presents Exelon, ComEd, PECO, BGE, Pepco, DPL and ACE did not have any reclassifications outACE's shares of AOCI to Net income duringpreferred securities authorized, none of which were outstanding, as of December 31, 2022 and 2021. There are no shares of preferred securities authorized for DPL.
Preferred Securities Authorized
Exelon100,000,000 
ComEd850,000 
PECO15,000,000 
BGE1,000,000 
Pepco6,000,000 
ACE(a)
2,799,979 
_________
(a)Includes 799,979 shares of cumulative preferred stock and 2,000,000 of no-par preferred stock as of December 31, 2022 and 2021.
The following table presents ComEd's, BGE's, and ACE's preference securities authorized, none of which were outstanding as of December 31, 2022 and 2021. There are no shares of preference securities authorized for Exelon, PECO, Pepco, and DPL.
Preference Securities Authorized
ComEd6,810,451 
BGE(a)
6,500,000 
ACE3,000,000 
__________
(a)Includes 4,600,000 shares of unclassified preference securities and 1,900,000 shares of previously redeemed preference securities as of December 31, 2022 and 2021.

20. Stock-Based Compensation Plans (All Registrants)
Stock-Based Compensation Plans
Exelon grants stock-based awards through its LTIP, which primarily includes performance share awards, restricted stock units, and stock options. At December 31, 2022, there were approximately 34 million shares authorized for issuance under the LTIP. For the years ended December 31, 20172022, 2021, and 2016. The following tables present amounts reclassified out2020, exercised and distributed stock-based awards were primarily issued from authorized but unissued common stock shares.
Separation-related Adjustments. In connection with the separation, Exelon and Constellation entered into an Employee Matters Agreement, effective February 1, 2022. Under the terms of AOCI to Net income for Exelon, Generation and PHI during the years ended December 31, 2017 and 2016:
For the Year Ended December 31, 2017Employee Matters Agreement,
257




Details about AOCI components 
Items reclassified out of AOCI(a)
 Affected line item in the Statement of Operations and Comprehensive Income
       
   Exelon Generation  
Gains and (losses) on cash flow hedges      
Other cash flow hedges $(5) $(5) Interest expense
Total before tax (5)
(5)  
Tax benefit 1
 1
  
Net of tax $(4)
$(4) Comprehensive income
       
Amortization of pension and other
postretirement benefit plan items
Prior service costs(b)
 $92
 $
  
Actuarial losses(b)
 (324) 
  
Total before tax (232)

  
Tax benefit 92
 
  
Net of tax $(140)
$
 Comprehensive Income
       
Total Reclassifications $(144)
$(4) Comprehensive income


Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


For the Year Ended December 31, 2016
Note 20 — Stock-Based Compensation Plans
Details about AOCI components 
Items reclassified out of AOCI(a)
 Affected line item in the Statement of Operations and Comprehensive Income
      Predecessor  
      January 1, 2016 to March 23, 2016  
   Exelon Generation PHI  
Loss on cash flow hedges        
Other cash flow hedges $(13) $(13) $
 Interest expense
Total before tax (13)
(13)

  
Tax benefit 5
 5
 
  
Net of tax $(8)
$(8)
$
 Comprehensive income
         
Amortization of pension and other postretirement benefit plan items        
Prior service costs(b)
 $78
 $
 $
  
Actuarial losses(b)
 (302) 
 (1)  
Total before tax (224)


(1)  
Tax benefit 87
 
 
  
Net of tax $(137)
$

$(1) Comprehensive Income
         
Losses on foreign currency translation        
Loss $(5) $(5) $
 Other income and (deductions)
Total before tax (5)
(5)

  
Tax benefit 
 
 
  
Net of tax $(5)
$(5)
$
  
Total Reclassifications $(150)
$(13)
$(1) Comprehensive income
__________
(a)Amounts in parenthesis represent a decrease in net income.
(b)This AOCI component is included in the computation of net periodic pension and OPEB cost (see Note 16 — Retirement Benefits for additional details).

Combined Notesand pursuant to Consolidated Financial Statements - (Continued)
(Dollarsthe terms of the LTIP, the Compensation Committee of the Board of Exelon approved an adjustment to outstanding awards granted under the LTIP in millions, exceptorder to preserve the intrinsic aggregate value of such awards before the separation. The separation-related adjustments did not have a material impact on either compensation expense or the potentially dilutive securities to be considered in the calculation of diluted earnings per share data unless otherwise noted)
of common stock. Former Exelon employees transferred to Constellation as a result of the separation surrendered their outstanding unvested Exelon awards effective February 1, 2022.

The Registrants grant cash awards. The following table does not include expense related to these plans as they are not considered stock-based compensation plans under the applicable authoritative guidance.
The following table presents income taxthe stock-based compensation expense (benefit) allocated to each component of other comprehensive income (loss) during the years ended December 31, 2017 and 2016:
 For the Year Ended December 31,
 2017 2016 2015
Exelon     
Pension and non-pension postretirement benefit plans:     
Prior service benefit reclassified to periodic benefit cost$36
 $30
 $30
Actuarial loss reclassified to periodic benefit cost(128) (118) (140)
Pension and non-pension postretirement benefit plans valuation adjustment13
 115
 62
Change in unrealized loss on cash flow hedges(7) 
 (6)
Change in unrealized (loss)/gain on equity investments(3) 3
 1
Change in unrealized loss on marketable securities

(1) 
 
Total$(90) $30

$(53)
      
Generation     
Change in unrealized (loss)/gain on cash flow hedges$(6) $(2) $2
Change in unrealized (loss)/gain on equity investments(3) 3
 1
Change in unrealized loss marketable securities(1) 
 
Total$(10) $1

$3
 Predecessor
 January 1 to
March 23,
 
For the Year Ended
December 31,
PHI2016 2015
Pension and non-pension postretirement benefit plans:   
Actuarial loss reclassified to periodic cost$
 $6
23. Commitments and Contingencies (All Registrants)
Commitments
Constellation Merger Commitments
In February 2012, the MDPSC issued an Order approving the Exelon and Constellation merger. As part of the MDPSC Order, Exelon agreed to provide a package of benefits to BGE customers, the City of Baltimore and the State of Maryland, resultingincluded in an estimated direct investment in the State of Maryland of approximately $1 billion.
The direct investment includes the construction of a new 21-story headquarters building in Baltimore for Generation’s competitive energy business that was substantially complete in November 2016 and is now occupied by approximately 1,500 Exelon employees.  Generation’s investment includes leasehold improvements that are not expected to exceed $110 million.  In addition, Generation entered into a 20-year operating lease as the primary lessee of the building. 
The direct investment commitment also includes $450 million to $500 million relating to Exelon and Generation’s development or assistance in the development of 285 - 300 MWs of new generation

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

in Maryland, which is expected to be completed within a period of 10 years. The MDPSC order contemplates various options for complying with the new generation development commitments, including building or acquiring generating assets, making subsidy or compliance payments, or in circumstances in which the generation build is delayed or certain specified provisions are elected, making liquidated damages payments. Exelon and Generation have incurred $457 million towards satisfying the commitment for new generation development in the state of Maryland, with approximately 220 MW of the new generation commencing with commercial operations to date and an additional 10 MW commitment satisfied through a liquidated damages payment made in the fourth quarter of 2016. Additionally, during the fourth quarter of 2016, given continued declines in projected energy and capacity prices, Generation terminated rights to certain development projects originally intended to meet its remaining 55 MW commitment amount. The commitment will now most likely be satisfied via payment of liquidated damages or execution of a third party PPA, rather than by Generation constructing renewable generating assets. As a result, Exelon and Generation recorded a pre-tax$50 millionloss contingency in Operating and maintenance expense in Exelon’s and Generation’sExelon's Consolidated Statements of Operations and Comprehensive Income for the year ended December 31, 2016.
Commercial Commitments
Exelon’s commercial commitments as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Letters of credit (non-debt)(a)
$1,226
 $1,056
 $154
 $16
 $
 $
 $
Surety bonds(b)
1,381
 1,293
 66
 16
 6
 
 
Financing trust guarantees 
378
 
 
 
 
 
 378
Guaranteed lease residual values(c)
21
 
 
 
 
 
 21
Total commercial commitments$3,006
 $2,349
 $220
 $32
 $6
 $
 $399
__________
(a)Letters of credit (non-debt)—Exelon and certain of its subsidiaries maintain non-debt letters of credit to provide credit support for certain transactions as requested by third parties.
(b)Surety bonds—Guarantees issued related to contract and commercial agreements, excluding bid bonds.
(c)Represents the maximum potential obligation in the event that the fair value of certain leased equipment and fleet vehicles is zero at the end of the maximum lease term. The maximum lease term associated with these assets ranges from 3 to 8 years. The maximum potential obligation at the end of the minimum lease term would be $56 million, $16 million of which is a guarantee by Pepco, $23 million by DPL and $15 million by ACE. The minimum lease term associated with these assets ranges from 1 to 4 years. Historically, payments under the guarantees have not been made and PHI believes the likelihood of payments being required under the guarantees is remote.
Generation’s commercial commitments as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Letters of credit (non-debt)(a)
$1,177
 $1,007
 $154
 $16
 $
 $
 $��
Surety bonds1,209
 1,164
 45
 
 
 
 
Total commercial commitments$2,386
 $2,171
 $199
 $16
 $
 $
 $
__________
(a)Letters of credit (non-debt)—Non-debt letters of credit maintained to provide credit support for certain transactions as requested by third parties.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

ComEd’s commercial commitments as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Letters of credit (non-debt)(a)
$2
 $2
 $
 $
 $
 $
 $
Surety bonds(b)
10
 8
 2
 
 
 
 
Financing trust guarantees 
200
 
 
 
 
 
 200
Total commercial commitments$212
 $10
 $2
 $
 $
 $
 $200
__________
(a)Letters of credit (non-debt)—ComEd maintains non-debt letters of credit to provide credit support for certain transactions as requested by third parties.
(b)Surety bonds—Guarantees issued related to contract and commercial agreements, excluding bid bonds.
PECO’s commercial commitments as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Surety bonds(a)
$9
 $8
 $1
 $
 $
 $
 $
Financing trust guarantees 
178
 
 
 
 
 
 178
Total commercial commitments$187
 $8
 $1
 $
 $
 $
 $178
__________
(a)Surety bonds—Guarantees issued related to contract and commercial agreements, excluding bid bonds.
BGE’s commercial commitments as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Letters of credit (non-debt)(a)
$2
 $2
 $
 $
 $
 $
 $
Surety bonds(b)
11
 10
 1
 
 
 
 
Total commercial commitments$13
 $12
 $1
 $
 $
 $
 $
__________
(a)Letters of credit (non-debt)—BGE maintains non-debt letters of credit to provide credit support for certain transactions as requested by third parties.
(b)Surety bonds—Guarantees issued related to contract and commercial agreements, excluding bid bonds.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PHI commercial commitments (Successor) as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Surety bonds 
$63
 $48
 $15
 $
 $
 $
 $
Guaranteed lease residual values(a)
21
 
 
 
 
 
 21
Total commercial commitments$84

$48

$15

$

$

$

$21
__________
(a)Represents the maximum potential obligation in the event that the fair value of certain leased equipment and fleet vehicles is zero at the end of the maximum lease term. The maximum lease term associated with these assets ranges from 3 to 8 years. The maximum potential obligation at the end of the minimum lease term would be $56 million. The minimum lease term associated with these assets ranges from 1 to 4 years. Historically, payments under the guarantees have not been made and PHI believes the likelihood of payments being required under the guarantees is remote.
Pepco commercial commitments as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Surety bonds(a)
$54
 $41
 $13
 $
 $
 $
 $
Guaranteed lease residual values(b)
6
 
 
 
 
 
 6
Total commercial commitments$60
 $41
 $13
 $
 $
 $
 $6
__________
(a)Surety bonds—Guarantees issued related to contract and commercial agreements, excluding bid bonds.
(b)Represents the maximum potential obligation in the event that the fair value of certain leased equipment and fleet vehicles is zero at the end of the maximum lease term. The maximum lease term associated with these assets ranges from 3 to 8 years. The maximum potential obligation at the end of the minimum lease term would be $16 million. The minimum lease term associated with these assets ranges from 1 to 4 years. Historically, payments under the guarantees have not been made and PHI believes the likelihood of payments being required under the guarantees is remote.
DPL commercial commitments as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Surety bonds(a)
$4
 $3
 $1
 $
 $
 $
 $
Guaranteed lease residual values(b)
8
 
 
 
 
 
 8
Total commercial commitments$12
 $3
 $1
 $
 $
 $
 $8
__________
(a)Surety bonds—Guarantees issued related to contract and commercial agreements, excluding bid bonds.
(b)Represents the maximum potential obligation in the event that the fair value of certain leased equipment and fleet vehicles is zero at the end of the maximum lease term. The maximum lease term associated with these assets ranges from 3 to 8 years. The maximum potential obligation at the end of the minimum lease term would be $23 million. The minimum lease term associated with these assets ranges from 1 to 4 years. Historically, payments under the guarantees have not been made and PHI believes the likelihood of payments being required under the guarantees is remote.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

ACE commercial commitments as of December 31, 2017, representing commitments potentially triggered by future events, were as follows:
   Expiration within
 Total2018 2019 2020 2021 2022 2023 and beyond
Surety bonds 
$4
 $3
 $1
 $
 $
 $
 $
Guaranteed lease residual values(a)
6
 
 
 
 
 
 6
Total commercial commitments$10
 $3
 $1
 $
 $
 $
 $6
__________
(a)Represents the maximum potential obligation in the event that the fair value of certain leased equipment and fleet vehicles is zero at the end of the maximum lease term. The maximum lease term associated with these assets ranges from 3 to 8 years. The maximum potential obligation at the end of the minimum lease term would be $15 million. The minimum lease term associated with these assets ranges from 1 to 4 years. Historically, payments under the guarantees have not been made and PHI believes the likelihood of payments being required under the guarantees is remote.
Leases
Minimum future operating lease payments, including lease payments for contracted generation, vehicles, real estate, computers, rail cars, operating equipment and office equipment, as of December 31, 2017 were:
           Successor      
 
Exelon(a)
 
Generation(a)
 
ComEd(a)(c)
 
PECO(a)(c)
 
BGE(a)(c)(d)(e)
 
PHI(a)
 
Pepco(a)
 
DPL(a)(c)
 
ACE(a)
2018$188
 $74
 $7
 $5
 $34
 $56
 $8
 $20
 $9
2019129
 29
 6
 5
 34
 42
 7
 10
 8
2020147
 47
 4
 5
 34
 44
 6
 13
 8
2021142
  48
  4
 5
 32
 40
 5
 12
 7
2022119
 46
 2
 5
 17
 39
 4
 12
 6
Remaining years787
 573
 
 
 19
 194
 8
 54
 19
Total minimum future lease payments$1,512
 $817
 $23
 $25
 $170
 $415
 $38
 $121
 $57
__________
(a)Includes amounts related to shared use land arrangements.
(b)Excludes Generation’s contingent operating lease payments associated with contracted generation agreements.
(c)Amounts related to certain real estate leases and railroad licenses effectively have indefinite payment periods. As a result, ComEd, PECO, BGE and DPL have excluded these payments from the remaining years as such amounts would not be meaningful. ComEd’s, PECO’s, BGE’s and DPL's average annual obligation for these arrangements, included in each of the years 2018—2022, was $2 million, $5 million, $1 million and $2 million, respectively. Also includes amounts related to shared use land arrangements.
(d)Includes all future lease payments on a 99-year real estate lease that expires in 2106.
(e)The BGE column above includes minimum future lease payments associated with a 6-year lease for the Baltimore City conduit system that became effective during the fourth quarter of 2016. BGE's total commitments under the lease agreement are $25 million, $26 million, $28 million , $28 million and $14 million related to years 2018, 2019, 2020, 2021and 2022, respectively.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Income. The following table presents the Registrants’ rentalUtility Registrants' stock-based compensation expense under operating leases for the years ended December 31, 2017, 20162022, 2021, and 2015:2020 was not material.
For the Year Ended December 31,Exelon 
Generation(a)
 ComEd PECO BGE Pepco DPL ACE
2017$709
 $578
 $9
 $9
 $32
 $11
 $16
 $14
2016777
 667
 15
 7
 22
 8
 15
 13
2015922
 851
 12
 9
 32
 7
 14
 13
 Successor  Predecessor
 For the Year Ended December 31, 2017 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016 For the Year Ended December 31, 2015
PHI        
Rental expense under operating leases$63
 $49
  $12
 $60
__________
(a)Includes contingent operating lease payments associated with contracted generation agreements that are not included in the minimum future operating lease payments table above. Payments made under Generation’s contracted generation lease agreements totaled $508 million, $604 million and $798 million during 2017, 2016 and 2015, respectively. Excludes contract amortization associated with purchase accounting and contract acquisitions.
For information regarding capital lease obligations, see Note 13—Debt and Credit Agreements.
Nuclear Insurance
Generation is subject to liability, property damage and other risks associated with major incidents at any of its nuclear stations. Generation has mitigated its financial exposure to these risks through insurance and other industry risk-sharing provisions.
The Price-Anderson Act was enacted to ensure the availability of funds for public liability claims arising from an incident at any of the U.S. licensed nuclear facilities and to limit the liability of nuclear reactor owners for such claims from any single incident. As of December 31, 2017, the current liability limit per incident is $13.4 billion and is subject to change to account for the effects of inflation and changes in the number of licensed reactors at least once every five years with the last adjustment effective September 10, 2013. In accordance with the Price-Anderson Act, Generation maintains financial protection at levels equal to the amount of liability insurance available from private sources through the purchase of private nuclear energy liability insurance for public liability claims that could arise in the event of an incident. Effective January 1, 2017, the required amount of nuclear energy liability insurance purchased is $450 million for each operating site. Claims exceeding that amount are covered through mandatory participation in a financial protection pool, as required by the Price Anderson-Act, which provides the additional $13.0 billion per incident in funds available for public liability claims. Participation in this secondary financial protection pool requires the operator of each reactor to fund its proportionate share of costs for any single incident that exceeds the primary layer of financial protection. Exelon’s share of this secondary layer would be approximately $2.8 billion, however any amounts payable under this secondary layer would be capped at $420 million per year.
In addition, the U.S. Congress could impose revenue-raising measures on the nuclear industry to pay public liability claims exceeding the $13.4 billion limit for a single incident.
As part of the execution of the NOSA on April 1, 2014, Generation executed an Indemnity Agreement pursuant to which Generation agreed to indemnify EDF and its affiliates against third-party claims that may arise from any future nuclear incident (as defined in the Price-Anderson Act) in connection with the CENG nuclear plants or their operations. Exelon guarantees Generation’s obligations under this

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

indemnity. See Note 2 — Variable Interest Entities for additional information on Generation’s operations relating to CENG.
Generation is required each year to report to the NRC the current levels and sources of property insurance that demonstrates Generation possesses sufficient financial resources to stabilize and decontaminate a reactor and reactor station site in the event of an accident. The property insurance maintained for each facility is currently provided through insurance policies purchased from NEIL, an industry mutual insurance company of which Generation is a member.
NEIL may declare distributions to its members as a result of favorable operating experience. In recent years NEIL has made distributions to its members, but Generation cannot predict the level of future distributions or if they will continue at all. Generation's portion of the distribution declared by NEIL is estimated to be $60 million for 2017, and was $21 million for 2016 and 2015. The distributions were recorded as a reduction to Operating and maintenance expense within Exelon and Generation’s Consolidated Statements of Operations and Comprehensive Income.
Premiums paid to NEIL by its members are also subject to a potential assessment for adverse loss experience in the form of a retrospective premium obligation. NEIL has never assessed this retrospective premium since its formation in 1973, and Generation cannot predict the level of future assessments if any. The current maximum aggregate annual retrospective premium obligation for Generation is approximately $360 million. NEIL requires its members to maintain an investment grade credit rating or to ensure collectability of their annual retrospective premium obligation by providing a financial guarantee, letter of credit, deposit premium, or some other means of assurance.
NEIL provides “all risk” property damage, decontamination and premature decommissioning insurance for each station for losses resulting from damage to its nuclear plants, either due to accidents or acts of terrorism. If the decision is made to decommission the facility, a portion of the insurance proceeds will be allocated to a fund, which Generation is required by the NRC to maintain, to provide for decommissioning the facility. In the event of an insured loss, Generation is unable to predict the timing of the availability of insurance proceeds to Generation and the amount of such proceeds that would be available. In the event that one or more acts of terrorism cause accidental property damage within a twelve-month period from the first accidental property damage under one or more policies for all insured plants, the maximum recovery by Exelon will be an aggregate of $3.2 billion plus such additional amounts as the insurer may recover for all such losses from reinsurance, indemnity and any other source, applicable to such losses.
For its insured losses, Generation is self-insured to the extent that losses are within the policy deductible or exceed the amount of insurance maintained. Uninsured losses and other expenses, to the extent not recoverable from insurers or the nuclear industry, could also be borne by Generation. Any such losses could have a material adverse effect on Exelon’s and Generation’s financial conditions, results of operations and cash flows.
Spent Nuclear Fuel Obligation
Under the NWPA, the DOE is responsible for the development of a geologic repository for and the disposal of SNF and high-level radioactive waste. As required by the NWPA, Generation is a party to contracts with the DOE (Standard Contracts) to provide for disposal of SNF from Generation’s nuclear generating stations. In accordance with the NWPA and the Standard Contracts, Generation historically had paid the DOE one mill ($0.001) per kWh of net nuclear generation for the cost of SNF disposal. On November 19, 2013, the D.C. Circuit Court ordered the DOE to submit to Congress a proposal to reduce the current SNF disposal fee to zero, unless and until there is a viable disposal program. On May 9, 2014, the DOE notified Generation that the SNF disposal fee remained in effect through May 15, 2014, after which time the fee was set to zero. As a result, for the year ended December 31, 2017, 2016and2015, Generation did not incur any expense in SNF disposal fees. Until a new fee structure is in effect,

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Year Ended December 31,
Exelon202220212020
Total stock-based compensation expense included in operating and maintenance expense$41 $95 $37 
Income tax benefit(10)(25)(9)
Total after-tax stock-based compensation expense$31 $70 $28 
Exelon and Generation will not accrue any further costs related to SNF disposal fees. This fee may be adjusted prospectively to ensure full cost recovery. The NWPA and the Standard Contracts required the DOE to begin taking possession of SNF generated by nuclear generating units by no later than January 31, 1998. The DOE, however, failed to meet that deadline and its performance has been, and is expected to be, delayed significantly.
The 2010 Federal budget (which became effective October 1, 2009) eliminated almost all funding for the creation of the Yucca Mountain repository while the Obama Administration devisedreceives a new strategy for long-term SNF management. The Blue Ribbon Commission (BRC) on America’s Nuclear Future, appointed by the U.S. Energy Secretary, released a report on January 26, 2012, detailing comprehensive recommendations for creating a safe, long-term solution for managing and disposing of the nation’s SNF and high-level radioactive waste.
In early 2013, the DOE issued an updated “Strategy for the Management and Disposal of Used Nuclear Fuel and High-Level Radioactive Waste” in response to the BRC recommendations. This strategy included a consolidated interim storage facility that was planned to be operational in 2025. However, due to continued delays on the part of the DOE, Generation currently assumes the DOE will begin accepting SNF in 2030 and uses that date for purposes of estimating the nuclear decommissioning asset retirement obligations. The SNF acceptance date assumption is based on management’s estimates of the amount of time required for DOE to select a site location and develop the necessary infrastructure for long-term SNF storage.
In August 2004, Generation and the DOJ, in close consultation with the DOE, reached a settlement under which the government agreed to reimburse Generation, subject to certain damage limitationstax deduction based on the extentintrinsic value of the government’s breach,award on the exercise date for costs associated with storage of SNF at Generation’s nuclear stations pendingstock options and the DOE’s fulfillment of its obligations. Generation’s settlement agreement does not include FitzPatrickdistribution date for performance share awards and FitzPatrick does not currently have a settlement agreement in place. Calvert Cliffs, Ginna and Nine Mile Pointrestricted stock units. For each have separate settlement agreements in place withaward, throughout the DOE which were extended during 2017 to provide forrequisite service period, Exelon recognizes the reimbursement of SNF storage costs through December 31, 2019. Generation submits annual reimbursement requests to the DOE for costs associated with the storage of SNF. In all cases, reimbursement requests are made only after costs are incurred and only for costs resulting from DOE delays in accepting the SNF.
Under the settlement agreements, Generation has received cumulative cash reimbursements for costs incurred as follows:
 Total 
Net(a)
Cumulative cash reimbursements(b)

$1,167
 $1,006
__________
(a)Total after considering amounts due to co-owners of certain nuclear stations and to the former owner of Oyster Creek.
(b)Includes $53 and $49, respectively, for amounts received since April 1, 2014, for costs incurred under the CENG DOE Settlement Agreements prior to the consolidation of CENG.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

As of December 31, 2017 and 2016, the amount of SNF storage costs for which reimbursement has been or will be requested from the DOE under the DOE settlement agreements is as follows:
 December 31, 2017 December 31, 2016
DOE receivable - current(a)
$94
 $109
DOE receivable - noncurrent(b)
15
 15
Amounts owed to co-owners(a)(c)
(11) (13)
__________
(a)Recorded in Accounts receivable, other.
(b)Recorded in Deferred debits and other assets, other
(c)Non-CENG amounts owed to co-owners are recorded in Accounts receivable, other.  CENG amounts owed to co-owners are recorded in Accounts payable. Represents amounts owed to the co-owners of Peach Bottom, Quad Cities, and Nine Mile Point Unit 2 generating facilities.
The Standard Contracts with the DOE also required the payment to the DOE of a one-time fee applicable to nuclear generation through April 6, 1983. The feetax benefit related to the former PECO units has been paid. Pursuant to the Standard Contracts, ComEd previously elected to defer payment of the one-time fee of $277 million for its units (which are now part of Generation), with interest to the date of payment, until just prior to the first delivery of SNF to the DOE.compensation costs. The unfunded liabilities for SNF disposal costs, including the one-time fee, were transferred to Generation as part of Exelon’s 2001 corporate restructuring. A prior owner of FitzPatrick also elected to defer payment of the one-time fee of $34 million for the FitzPatrick unit. As part of the FitzPatrick acquisition on March 31, 2017, Generation assumed a SNF liability for the DOE one-time fee obligation with interest related to FitzPatrick along with an offsetting asset for the contractual right to reimbursement from NYPA, a prior owner of FitzPatrick, for amounts paid for the FitzPatrick DOE one-time fee obligation. The amounts were recorded at fair value. See Note 4 - Mergers, Acquisitions and Dispositions for additional information on the FitzPatrick acquisition. As of December 31, 2017 and 2016, the SNF liability for the one-time fee with interest was $1,147 million and $1,024 million, respectively, which is included in Exelon's and Generation's Consolidated Balance Sheets. Interest for Exelon's and Generation's SNF liabilitiesaccrues at the 13-week Treasury Rate. The 13-week Treasury Rate in effect, for calculation of the interest accrual at December 31, 2017, was 1.149%. The outstanding one-time fee obligations for the Nine Mile Point, Ginna, Oyster Creek and TMI units remain with the former owners. The Clinton and Calvert Cliffs units have no outstanding obligation. See Note 11 — Fair Value of Financial Assets and Liabilities for additional information.
Environmental Remediation Matters
General. The Registrants’ operations have in the past, and may in the future, require substantial expenditures to comply with environmental laws. Additionally, under Federal and state environmental laws, the Registrants are generally liable for the costs of remediating environmental contamination of property now or formerly owned by them and of property contaminated by hazardous substances generated by them. The Registrants own or lease a number of real estate parcels, including parcels on which their operations or the operations of others may have resulted in contamination by substances that are considered hazardous under environmental laws. In addition, the Registrants are currently involved in a number of proceedings relating to sites where hazardous substances have been deposited and may be subject to additional proceedings in the future. Unless otherwise disclosed, the Registrants cannot reasonably estimate whether they will incur significant liabilities for additional investigation and remediation costs at these or additional sites identified by the Registrants, environmental agencies or others, or whether such costs will be recoverable from third parties, including customers. Additional costs could have a material, unfavorable impact on the Registrants' financial conditions, results of operations and cash flows.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

MGP Sites
ComEd, PECO, BGE and DPL have identified sites where former MGP activities have or may have resulted in actual site contamination. For almost all of these sites, there are additional PRPs that may share responsibility for the ultimate remediation of each location.
ComEd has identified 42 sites, 19 of which have been remediated and approved by the Illinois EPA or the U.S. EPA and 23 that are currently under some degree of active study and/or remediation. ComEd expects the majority of the remediation at these sites to continue through at least 2022.
PECO has identified 26 sites, 17 of which have been remediated in accordance with applicable PA DEP regulatory requirements and 9 that are currently under some degree of active study and/or remediation. PECO expects the majority of the remediation at these sites to continue through at least 2022.
BGE has identified 13 former gas manufacturing or purification sites, 11 of which the remediation has been completed and approved by the MDE and 2 that require some level of remediation and/or ongoing monitoring. BGE has determined that a loss associated with these sites is probable and has recorded an estimated liability, which is included in thefollowing table below. However, it is reasonably possible that BGE’s cost of remediation for one of its sites could be up to $13 million.
DPL has identified 3 sites, 2 of which remediation has been completed and approved by the MDE or the Delaware Department of Natural Resources and Environmental Control. The remaining site is under study and the required cost at the site is not expected to be material.
The historical nature of the MGP sites and the fact that many of the sites have been buried and built over, impacts the ability to determine a precise estimate of the ultimate costs prior to initial sampling and determination of the exact scope and method of remedial activity. Management determines its best estimate of remediation costs using all available information at the time of each study, including probabilistic and deterministic modeling for ComEd and PECO, and the remediation standards currently required by the applicable state environmental agency.  Prior to completion of any significant clean up, each site remediation plan is approved by the appropriate state environmental agency.
ComEd, pursuant to an ICC order, and PECO, pursuant to settlements of natural gas distribution rate cases with the PAPUC, are currently recovering environmental remediation costs of former MGP facility sites through customer rates. See Note 3 — Regulatory Matters for additionalpresents information regarding the associated regulatory assets. While BGE and DPL do not have riders for MGP clean-up costs, they have historically received recovery of actual clean-up costs in distribution rates.Exelon’s realized tax benefit when distributed:

Year Ended December 31,
202220212020
Performance share awards$$$15 
Restricted stock units
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

As of December 31, 2017 and 2016, the Registrants had accrued the following undiscounted amounts for environmental liabilities in Other current liabilities and Other deferred credits and other liabilities within their respective Consolidated Balance Sheets:
December 31, 2017
Total environmental
investigation
and remediation reserve
 
Portion of total related to MGP
investigation and remediation
Exelon$466
 $315
Generation117
 
ComEd285
 283
PECO30
 28
BGE5
 4
PHI29
 
Pepco27
 
DPL1
 
ACE1
 
December 31, 2016
Total environmental
investigation
and remediation reserve
 
Portion of total related to MGP
investigation and remediation
Exelon$429
 $325
Generation72
 
ComEd292
 291
PECO33
 31
BGE2
 2
PHI30
 1
Pepco27
 
DPL2
 1
ACE1
 
During the third quarter of 2017, ComEd, PECO, BGE and DPL completed an annual study of their future estimated MGP remediation requirements. The study resulted in a $13 million and $2 million increase to environmental liabilities and related regulatory assets for ComEd and PECO, respectively, and no change at BGE and DPL.
Solid and Hazardous Waste
Cotter Corporation. The EPA has advised Cotter Corporation (Cotter), a former ComEd subsidiary, that it is potentially liable in connection with radiological contamination at a site known as the West Lake Landfill in Missouri. In 2000, ComEd sold Cotter to an unaffiliated third-party. As part of the sale, ComEd agreed to indemnify Cotter for any liability arising in connection with the West Lake Landfill. In connection with Exelon’s 2001 corporate restructuring, this responsibility to indemnify Cotter was transferred to Generation. On May 29, 2008, the EPA issued a Record of Decision (ROD) approving a landfill cover remediation approach. By letter dated January 11, 2010, the EPA requested that the PRPs perform a supplemental feasibility study for a remediation alternative that would involve complete excavation of the radiological contamination. On September 30, 2011, the PRPs submitted the supplemental feasibility study to the EPA for review. Since June 2012, the EPA has requested that the PRPs perform a series of additional analyses and groundwater and soil sampling as part of the supplemental feasibility study. This further analysis was focused on a partial excavation remedial option. The PRPs provided the draft final Remedial Investigation and Feasibility Study (RI/FS) to the EPA in January 2018, which formed the basis for EPA’s proposed remedy selection, as further discussed below. There are currently three PRPs

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

participating in the West Lake Landfill remediation proceeding. Investigation by Generation has identified a number of other parties who also may be PRPs and could be liable to contribute to the final remedy. Further investigation is ongoing. As of December 31, 2016, Generation had previously recorded an estimated liability for its anticipated share of a landfill cover remedy, which at the time was estimated to cost approximately $90 million in total.
On February 1, 2018, the EPA announced its proposed remedy involving partial excavation of the site with an enhanced landfill cover. The proposed remedy will be open for public comment through March 22, 2018 and Generation currently expects that a ROD will be issued during the third quarter of 2018. Thereafter, the EPA will seek to enter into a Consent Decree with the PRPs to effectuate the remedy, which Generation currently expects will occur in late 2018 or early 2019. The estimated cost of the remedy, taking into account the current EPA technical requirements and the total costs expected to be incurred by the PRPs in fully executing the remedy, is approximately $340 million, including cost escalation on an undiscounted basis, which would be allocated among the final group of PRPs. Generation has determined that a loss associated with the EPA’s partial excavation and enhanced landfill cover remedy is probable and has recorded a liability as of December 31, 2017, included in the table above, that reflects management’s best estimate of Cotter’s allocable share of the ultimate cost for the entire remediation effort. Given the joint and several nature of this liability, the magnitude of Generation’s ultimate liability will depend on the actual costs incurred to implement the ultimate required remediation remedy as well as on the nature and terms of any cost-sharing arrangements with the final group of PRPs. Therefore, it is reasonably possible that the ultimate cost and Generation’s associated allocable share recorded as of December 31, 2017, could differ significantly once these uncertainties are resolved, which could have a material impact on Exelon's and Generation's future financial conditions, results of operations and cash flows.
On January 16, 2018, the PRPs were advised by the EPA that it will begin an additional investigation and evaluation of groundwater conditions at the West Lake Landfill. The PRPs have been provided with a draft statement of work that will form the basis of an Administrative Settlement Agreement and Order on Consent for the performance by the PRPs of the groundwater RI/FS and reimbursement of EPA’s oversight costs. The purposes of this new RI/FS are to define the nature and extent of any groundwater contamination from the West Lake Landfill site, determine the potential risk posed to human health and the environment, and evaluate remedial alternatives. Generation estimates the undiscounted cost for the groundwater RI/FS for West Lake to be approximately $20 million and Generation has recorded a liability as of December 31, 2017, included in the table above, that reflects management’s best estimate of Cotter’s allocable share of the cost among the PRPs. At this time Generation cannot predict the likelihood or the extent to which, if any, remediation activities will be required and cannot estimate a reasonably possible range of loss for response costs beyond those associated with the RI/FS component. It is reasonably possible, however, that resolution of this matter could have a material, unfavorable impact on Exelon’s and Generation’s future results of operations and cash flows.
During December 2015, the EPA took two actions related to the West Lake Landfill designed to abate what it termed as imminent and dangerous conditions at the landfill. The first involved installation by the PRPs of a non-combustible surface cover to protect against surface fires in areas where radiological materials are believed to have been disposed. Generation has accrued what it believes to be an adequate amount to cover its anticipated liability for this interim action, and the work is expected to be completed in 2018. The second action involved EPA's public statement that it will require the PRPs to construct a barrier wall in an adjacent landfill to prevent a subsurface fire from spreading to those areas of the West Lake Landfill where radiological materials are believed to have been disposed. At this time, Generation believes that the requirement to build a barrier wall is remote in light of other technologies that have been employed by the adjacent landfill owner. Finally, one of the other PRPs, the landfill owner and operator of the adjacent landfill, has indicated that it will be making a contribution claim against Cotter for costs that it has incurred to prevent the subsurface fire from spreading to those areas of the West Lake Landfill where radiological materials are believed to have been disposed. At this time, Exelon

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

and Generation do not possess sufficient information to assess this claim and therefore are unable to estimate a range of loss, if any. As such, no liability has been recorded for the potential contribution claim. It is reasonably possible, however, that resolution of this matter could have a material, unfavorable impact on Exelon’s and Generation's financial conditions, results of operations and cash flows.
On August 8, 2011, Cotter was notified by the DOJ that Cotter is considered a PRP with respect to the government’s clean-up costs for contamination attributable to low level radioactive residues at a former storage and reprocessing facility named Latty Avenue near St. Louis, Missouri. The Latty Avenue site is included in ComEd’s indemnification responsibilities discussed above as part of the sale of Cotter. The radioactive residues had been generated initially in connection with the processing of uranium ores as part of the U.S. Government’s Manhattan Project. Cotter purchased the residues in 1969 for initial processing at the Latty Avenue facility for the subsequent extraction of uranium and metals. In 1976, the NRC found that the Latty Avenue site had radiation levels exceeding NRC criteria for decontamination of land areas. Latty Avenue was investigated and remediated by the United States Army Corps of Engineers pursuant to funding under FUSRAP. The DOJ has not yet formally advised the PRPs of the amount that it is seeking, but it is believed to be approximately $90 million from all PRPs. The DOJ and the PRPs agreed to toll the statute of limitations until August 2018 so that settlement discussions could proceed. Generation has determined that a loss associated with this matter is probable under its indemnification agreement with Cotter and has recorded an estimated liability, which is included in the table above.
Commencing in February 2012, a number of lawsuits have been filed in the U.S. District Court for the Eastern District of Missouri. Among the defendants were Exelon, Generation and ComEd, all of which were subsequently dismissed from the case, as well as Cotter, which remains a defendant. The suits allege that individuals living in the North St. Louis area developed some form of cancer or other serious illness due to Cotter's negligent or reckless conduct in processing, transporting, storing, handling and/or disposing of radioactive materials. Plaintiffs are asserting public liability claims under the Price-Anderson Act. Their state law claims for negligence, strict liability, emotional distress, and medical monitoring have been dismissed. The complaints do not contain specific damage claims. In the event of a finding of liability against Cotter, it is reasonably possible that Generation would be financially responsible due to its indemnification responsibilities of Cotter described above. The court has dismissed a number of the lawsuits as untimely, and that ruling is currently on appeal. Pre-trial motions and discovery are proceeding in the remaining cases and a pre-trial scheduling order has been filed with the court. At this stage of the litigation, Generation cannot estimate a range of loss, if any. As such, no liability has been recorded for these lawsuits.
Benning Road Site. In September 2010, PHI received a letter from EPA identifying the Benning Road site as one of six land-based sites potentially contributing to contamination of the lower Anacostia River. A portion of the site was formerly the location of a Pepco Energy Services electric generating facility. That generating facility was deactivated in June 2012 and plant structure demolition was completed in July 2015. The remaining portion of the site consists of a Pepco transmission and distribution service center that remains in operation. In December 2011, the U.S. District Court for the District of Columbia approved a Consent Decree entered into by Pepco and Pepco Energy Services with the DOEE, which requires Pepco and Pepco Energy Services to conduct a Remediation Investigation (RI)/ Feasibility Study (FS) for the Benning Road site and an approximately 10 to 15-acre portion of the adjacent Anacostia River. The RI/FS will form the basis for the remedial actions for the Benning Road site and for the Anacostia River sediment associated with the site. The Consent Decree does not obligate Pepco or Pepco Energy Services to pay for or perform any remediation work, but it is anticipated that DOEE will look to Pepco and Pepco Energy Services to assume responsibility for cleanup of any conditions in the river that are determined to be attributable to past activities at the Benning Road site. Pursuant to Exelon's March 23, 2016 acquisition of PHI, Pepco Energy Services was transferred to Generation.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Since 2013, Pepco and Pepco Energy Services (now Generation) have been performing RI work and have submitted multiple draft RI reports to the DOEE. Once the RI work is completed, Pepco and Generation will issue a draft “final” RI report for review and comment by DOEE and the public. Pepco and Generation will then proceed to develop an FS to evaluate possible remedial alternatives for submission to DOEE. The Court has established a schedule for completion of the RI and FS, and approval by the DOEE, by May 6, 2019.
Upon DOEE’s approval of the final RI and FS Reports, Pepco and Generation will have satisfied their obligations under the Consent Decree. At that point, DOEE will prepare a Proposed Plan regarding further response actions. After considering public comment on the Proposed Plan, DOEE will issue a Record of Decision identifying any further response actions determined to be necessary.
PHI, Pepco and Generation have determined that a loss associated with this matter is probable and have accrued an estimated liability, which is included in the table above.
Anacostia River Tidal Reach. Contemporaneous with the Benning RI/FS being performed by Pepco and Generation, DOEE and certain federal agencies have been conducting a separate RI/FS focused on the entire tidal reach of the Anacostia River extending from just north of the Maryland-D.C. boundary line to the confluence of the Anacostia and Potomac Rivers. In March 2016, DOEE released a draft of the river-wide RI Report for public review and comment. The river-wide RI incorporated the results of the river sampling performed by Pepco and Pepco Energy Services as part of the Benning RI/FS, as well as similar sampling efforts conducted by owners of other sites adjacent to this segment of the river and supplemental river sampling conducted by DOEE’s contractor. DOEE asked Pepco, along with parties responsible for other sites along the river, to participate in a “Consultative Working Group” to provide input into the process for future remedial actions addressing the entire tidal reach of the river and to ensure proper coordination with the other river cleanup efforts currently underway, including cleanup of the river segment adjacent to the Benning Road site resulting from the Benning RI/FS. Pepco responded that it will participate in the Consultative Working Group but its participation is not an acceptance of any financial responsibility beyond the work that will be performed at the Benning Road site described above. DOEE has advised the Consultative Working Group that the federal and DOEE authorities are conducting the remedial investigation and that a feasibility study of potential remedies is being prepared. DOEE currently is working under a statutorily mandated date to complete the Record of Decision selecting the final remedy for the project by June 30, 2018. However, on January 11, 2018 the DOEE requested at a hearing of the District of Columbia Council Committee of the Environment that this statutory deadline be extended until December 31, 2019 to reflect the time necessary to complete the investigation. A recommendation by the Committee to the DC Council is expected in the near future. The District of Columbia Council will make the final determination to extend the deadline. An appropriate liability for Pepco’s share of investigation costs has been accrued and is included in the table above. Although Pepco has determined that it is probable that costs for remediation will be incurred, Pepco cannot estimate the reasonably possible range of loss at this time and no liability has been accrued for those future costs.
Conectiv Energy Wholesale Power Generation Sites. In July 2010, PHI sold the wholesale power generation business of Conectiv Energy Holdings, Inc. and substantially all of its subsidiaries (Conectiv Energy) to Calpine Corporation (Calpine). Under New Jersey’s Industrial Site Recovery Act (ISRA), the transfer of ownership triggered an obligation on the part of Conectiv Energy to remediate any environmental contamination at each of the nine Conectiv Energy generating facility sites located in New Jersey. Under the terms of the sale, Calpine has assumed responsibility for performing the ISRA-required remediation and for the payment of all related ISRA compliance costs up to $10 million. Predecessor PHI was obligated to indemnify Calpine for any ISRA compliance remediation costs in excess of $10 million. According to PHI’s estimates, the costs of ISRA-required remediation activities at the nine generating facility sites located in New Jersey are in the range of approximately $7 million to $18 million, and predecessor PHI recorded an estimated liability for its share of the estimated clean-up costs. Pursuant

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

to Exelon’s March 2016 acquisition of PHI, the Conectiv Energy legal entity was transferred to Generation and the liability for Predecessor PHI's share of the estimated clean- up costs was also transferred to Generation and is included in the table above as a liability of Generation. The responsibility to indemnify Calpine is shared by PHI and Generation. 
Brandywine Fly Ash Disposal Site. In February 2013, Pepco received a letter from the MDE requesting that Pepco investigate the extent of waste on a Pepco right-of-way that traverses the Brandywine fly ash disposal site in Brandywine, Prince George’s County, Maryland, owned by NRG Energy, Inc. (as successor to GenOn MD Ash Management, LLC) (NRG). In July 2013, while reserving its rights and related defenses under a 2000 agreement covering the sale of this site, Pepco indicated its willingness to investigate the extent of, and propose an appropriate closure plan to address, ash on the right-of-way. Pepco submitted a schedule for development of a closure plan to MDE on September 30, 2013 and, by letter dated October 18, 2013, MDE approved the schedule.
Pepco has determined that a loss associated with this matter is probable and has recorded an estimated liability, which is included in the table above. Pepco believes that the costs incurred in this matter may be recoverable from NRG under the 2000 sale agreement, but has not recorded an associated receivable for any potential recovery.
Litigation and Regulatory Matters
Asbestos Personal Injury Claims
Exelon and Generation. Generation maintains estimated liabilities for claims associated with asbestos-related personal injury actions in certain facilities that are currently owned by Generation or were previously owned by ComEd and PECO. The estimated liabilities are recorded on an undiscounted basis and exclude the estimated legal costs associated with handling these matters, which could be material.
At December 31, 2017 and 2016, Generation had recorded estimated liabilities of approximately $78 million and $83 million, respectively, in total for asbestos-related bodily injury claims. As of December 31, 2017, approximately $21 million of this amount related to 230 open claims presented to Generation, while the remaining $57 million is for estimated future asbestos-related bodily injury claims anticipated to arise through 2050, based on actuarial assumptions and analyses, which are updated on an annual basis. On a quarterly basis, Generation monitors actual experience against the number of forecasted claims to be received and expected claim payments and evaluates whether adjustments to the estimated liabilities are necessary.
On November 22, 2013, the Supreme Court of Pennsylvania held that the Pennsylvania Workers Compensation Act does not apply to an employee’s disability or death resulting from occupational disease, such as diseases related to asbestos exposure, which manifests more than 300 weeks after the employee’s last employment-based exposure, and that therefore the exclusivity provision of the Act does not preclude such employee from suing his or her employer in court. The Supreme Court’s ruling reverses previous rulings by the Pennsylvania Superior Court precluding current and former employees from suing their employers in court, despite the fact that the same employee was not eligible for workers compensation benefits for diseases that manifest more than 300 weeks after the employee’s last employment-based exposure to asbestos. Since the Pennsylvania Supreme Court’s ruling in November 2013, Exelon, Generation, and PECO have experienced an increase in asbestos-related personal injury claims brought by former PECO employees, all of which have been accrued for on a claim by claim basis.  Those additional claims are taken into account in projecting estimated future asbestos-related bodily injury claims. 
On November 4, 2015, the Illinois Supreme Court found that the provisions of the Illinois’ Workers’ Compensation Act and the Workers’ Occupational Diseases Act barred an employee from bringing a

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

direct civil action against an employer for latent diseases, including asbestos-related diseases that fall outside the 25-year limit of the statute of repose. The Illinois Supreme Court’s ruling reversed previous rulings by the Illinois Court of Appeals, which initially ruled that the Illinois Worker’s Compensation law should not apply in cases where the diagnosis of an asbestos related disease occurred after the 25-year maximum time period for filing a Worker’s Compensation claim. As a result of this ruling, Exelon, Generation, and ComEd have not recorded an increase to the asbestos-related bodily injury liability as of December 31, 2017.
There is a reasonable possibility that Exelon may have additional exposure to estimated future asbestos-related bodily injury claims in excess of the amount accrued and the increases could have a material unfavorable impact on Exelon’s, Generation’s and PECO’s financial conditions, results of operations and cash flows.
Fund Transfer Restrictions (Exelon, Generation, ComEd, PECO, BGE, Pepco, DPL and ACE)
(All Registrants).Under applicable law, Exelon may borrow or receive an extension of credit from its subsidiaries. Under the terms of Exelon’s intercompany money pool agreement, Exelon can lend to, but not borrow from the money pool.
The Federal Power Act declares it to be unlawful for any officerUnder applicable law, ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE can pay dividends only from retained, undistributed or director of any public utility “to participate in the makingcurrent earnings. A significant loss recorded at ComEd, PECO, BGE, PHI, Pepco, DPL, or paying of any dividends of such public utility from any funds properly included in capital account.” What constitutes “funds properly included in capital account” is undefined in the Federal Power Act or the related regulations; however, FERC has consistently interpreted the provision to allow dividends to be paid as long as: (1) the source of the dividends is clearly disclosed; (2) the dividend is not excessive; and (3) there is no self-dealing on the part of corporate officials. While these restrictionsACE may limit the absolute amount of dividends that a particular subsidiary may pay, Exelon does not believe these limitations are materially limiting because, under these limitations, the subsidiaries are allowedcompanies can distribute to pay dividends sufficientExelon.
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Table of Contents
Combined Notes to meet Exelon’s actual cash needs.Consolidated Financial Statements
Under Illinois law, ComEd may not pay any dividend on its stock(Dollars in millions, except per share data unless among other things, “[its] earningsotherwise noted)

Note 18 — Commitments and earned surplus are sufficient to declare and pay same after provision is made for reasonable and proper reserves,” or unless it has specific authorization from the ICC. Contingencies
ComEd has also agreed in connection with financings arranged through ComEd Financing III that it will not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debt securities issued to ComEd Financing III; (2) it defaults on its guarantee of the payment of distributions on the preferred trust securities of ComEd Financing III; or (3) an event of default occurs under the Indenture under which the subordinated debt securities are issued. No such event has occurred.
PECO’s Articles of Incorporation prohibit payment of any dividend on, or other distribution to the holders of, common stock if, after giving effect thereto, the capital of PECO represented by its common stock togetherhas agreed in connection with its retained earnings is, in the aggregate, less than the involuntary liquidating value of its then outstanding preferred securities. On May 1, 2013,financings arranged through PEC L.P. and PECO redeemed all outstanding preferred securities. As a result, the above ratio calculation is no longer applicable. Additionally,Trust IV that PECO maywill not declare dividends on any shares of its capital stock in the event that: (1) it exercises its right to extend the interest payment periods on the subordinated debentures, which were issued to PEC L.P. or PECO Trust IV; (2) it defaults on its guarantee of the payment of distributions on the Series D Preferred Securities of PEC L.P. or the preferred trust securities of PECO Trust IV; or (3) an event of default occurs under the Indenture under which the subordinated debentures are issued. No such event has occurred.
BGE is subject to certain dividend restrictions established by the MDPSC. First,MDPSC that prohibit BGE was prohibited from paying a dividend on its common shares through the end of 2014. Second, BGE is prohibited from paying a dividend on its common shares if (a) after the dividend payment, BGE’s equity ratio would be below 48% as calculated pursuant to the MDPSC’s ratemaking precedents or (b) BGE’s senior unsecured credit rating is rated by two of the three major credit rating agencies below investment grade. Finally,

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

BGE must notify the MDPSC that it intends to declare a dividend on its common shares at least 30 days beforeNo such a dividend is paid.event has occurred.
Pepco is subject to certain dividend restrictions established by settlements approved in Marylandby the MDPSC and the District of Columbia.DCPSC that prohibit Pepco is prohibited from paying a dividend on its common shares if (a) after the dividend payment, Pepco's equity ratio would be 48% as equity levels are calculated underpursuant to the MDPSC's and DCPSC's ratemaking precedents, of the commissions and the Board or (b) Pepco’s senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade. No such event has occurred.
DPL is subject to certain dividend restrictions established by settlements approved in Delawareby the DEPSC and Maryland.MDPSC that prohibit DPL is prohibited from paying a dividend on its common shares if (a) after the dividend payment, DPL's equity ratio would be 48% as equity levels are calculated underpursuant to the DCPSC's and MDPSC's ratemaking precedents, of the commissions and the Board or (b) DPL’s corporate issuer or senior unsecured credit rating, or its equivalent, is rated by any of the three major credit rating agencies below the generally accepted definition of investment grade. No such event has occurred.
ACE is subject to certain dividend restrictions established by settlements approved by the NJBPU that prohibit ACE from paying a dividend on its common shares if (a) after the dividend payment, ACE's common equity ratio would be 48% as calculated pursuant to the NJBPU's ratemaking precedents, or (b) ACE's senior corporate issuer or senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade.
ACE is also subject to certain dividend restrictions established by settlements approved in New Jersey.  ACE is prohibited from paying a dividend on its common shares if (a) afterrestriction which requires ACE to notify and obtain the dividend payment, ACE's equity ratio would be 48% as equity levels are calculated under the ratemaking precedentsprior approval of the commissionsNJBPU before dividends can be paid if its equity as a percent of its total capitalization, excluding securitization debt, falls below 30%. No such events have occurred.
DPA and the Board or (b) ACE’s senior unsecured credit rating is rated by one of the three major credit rating agencies below investment grade.
Conduit Lease with City of Baltimore
On September 23, 2015, the Baltimore City Board of Estimates approved an increase in annual rental fees for access to the Baltimore City underground conduit system effective November 1, 2015, from $12 million to $42 million, subject to an annual increase thereafter based on the Consumer Price Index. BGE subsequently entered into litigation with the City regarding the amount ofRelated Matters (Exelon and basis for establishing the conduit fee. On November 30, 2016, the Baltimore City Board of Estimates approvedComEd). Exelon and ComEd received a settlement agreement entered into between BGE and the City to resolve the disputes and pending litigation related to BGE's use of and payment for the underground conduit system. As a result of the settlement, the parties have entered into a six-year lease that reduces the annual expense to $25 million in the first three years and caps the annual expense in the last three years to not more than $29 million. BGE recorded a decrease to Operating and maintenance expense in the fourth quarter of 2016 of approximately $28 million for the reversal of the previously higher fees accrued as well as the settlement of prior year disputed fee true-up amounts.
Deere Wind Energy Assets
In 2013, Deere & Company (Deere) filed a lawsuit against Generation in the Delaware Superior Court relating to Generation’s acquisition of the Deere wind energy assets.  Under the purchase agreement, Deere was entitled to receive earn-out payments if certain specific wind projects already under development in Michigan met certain development and construction milestones following the sale.  In the complaint, Deere sought to recover a $14 million earn-out payment associated with one such project, which was never completed. On June 2, 2016, the Delaware Superior Court entered summary judgment in favor of Deere. As a result,grand jury subpoena in the second quarter of 2016, Generation increased its accrued liability to $14 million.2019 from the U.S. Attorney’s Office for the Northern District of Illinois (USAO) requiring production of information concerning their lobbying activities in the State of Illinois. On JanuaryOctober 4, 2019, Exelon and ComEd received a second grand jury subpoena from the USAO requiring production of records of any communications with certain individuals and entities. On October 22, 2019, the SEC notified Exelon and ComEd that it had also opened an investigation into their lobbying activities. On July 17, 2017, Generation filed an appeal2020, ComEd entered into a DPA with the Delaware Supreme Court.  On December 18, 2017,USAO to resolve the Delaware Supreme Court reversedUSAO investigation. Under the Superior Court decisionDPA, the USAO filed a single charge alleging that ComEd improperly gave and entered final judgmentoffered to give jobs, vendor subcontracts, and payments associated with those jobs and subcontracts for the benefit of the former Speaker of the Illinois House of Representatives and the Speaker’s associates, with the intent to influence the Speaker’s action regarding legislation affecting ComEd’s interests. The DPA provides that the USAO will defer any prosecution of such charge and any other criminal or civil case against ComEd in favorconnection with the matters identified therein for a three-year period subject to certain obligations of Generation. AsComEd, including payment to the U.S. Treasury of $200 million, which was paid in November 2020. Exelon was not made a result,party to the DPA, and therefore the investigation by the USAO into Exelon’s activities ended with no charges being brought against Exelon. The SEC’s investigation remains ongoing and Exelon and ComEd have cooperated fully and intend to continue to cooperate fully with the SEC. Exelon and ComEd cannot predict the outcome of the SEC investigation. No loss contingency has been reflected in Exelon's and ComEd's consolidated financial statements with respect to the fourth quarterSEC investigation, as this contingency is neither probable nor reasonably estimable at this time.
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Table of 2017, Generation reversed its previously established liability of $14 million.
City of Everett Tax Increment Financing Agreement (Exelon)
On April 10, 2017, the City of Everett petitioned the Massachusetts Economic Assistance Coordinating Council (EACC) to revoke the 1999 tax increment financing agreement (TIF Agreement)

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 18 — Commitments and Contingencies
relatingSubsequent to Mystic 8 & 9Exelon announcing the receipt of the subpoenas, various lawsuits were filed, and various demand letters were received related to the subject of the subpoenas, the conduct described in the DPA and the SEC's investigation, including:
Four putative class action lawsuits against ComEd and Exelon were filed in federal court on behalf of ComEd customers in the third quarter of 2020 alleging, among other things, civil violations of federal racketeering laws. In addition, the Citizens Utility Board (CUB) filed a motion to intervene in these cases on October 22, 2020 which was granted on December 23, 2020. On December 2, 2020, the court appointed interim lead plaintiffs in the federal cases which consisted of counsel for three of the four federal cases. These plaintiffs filed a consolidated complaint on January 5, 2021. CUB also filed its own complaint against ComEd only on the grounds that the total investment in Mystic 8 & 9 materially deviatessame day. The remaining federal case, Potter, et al. v. Exelon et al, differed from the investment set forthother lawsuits as it named additional individual defendants not named in the TIF Agreement.consolidated complaint. However, the Potter plaintiffs voluntarily dismissed their complaint without prejudice on April 5, 2021. ComEd and Exelon moved to dismiss the consolidated class action complaint and CUB’s complaint on February 4, 2021 and briefing was completed on March 22, 2021. On October 31, 2017,March 25, 2021, the parties agreed, along with state court plaintiffs, discussed below, to jointly engage in mediation. The parties participated in a three-member panelone-day mediation on June 7, 2021 but no settlement was reached. On September 9, 2021, the federal court granted Exelon’s and ComEd’s motion to dismiss and dismissed the plaintiffs’ and CUB’s federal law claim with prejudice. The federal court also dismissed the related state law claims made by the federal plaintiffs and CUB on jurisdictional grounds. Plaintiffs appealed dismissal of the EACC conductedfederal law claim to the Seventh Circuit Court of Appeals. Plaintiffs and CUB also refiled their state law claims in state court and moved to consolidate them with the already pending consumer state court class action, discussed below. On August 22, 2022, the Seventh Circuit affirmed the dismissal of the consolidated federal cases in their entirety. The time to further appeal has passed and the Seventh Circuit’s decision is final.
Three putative class action lawsuits against ComEd and Exelon were filed in Illinois state court in the third quarter of 2020 seeking restitution and compensatory damages on behalf of ComEd customers. The cases were consolidated into a single action in October of 2020. In November 2020, CUB filed a motion to intervene in the cases pursuant to an administrative hearingIllinois statute allowing CUB to intervene as a party or otherwise participate on behalf of utility consumers in any proceeding which affects the interest of utility consumers. On November 23, 2020, the court allowed CUB’s intervention, but denied CUB's request to stay these cases. Plaintiffs subsequently filed a consolidated complaint, and ComEd and Exelon filed a motion to dismiss on jurisdictional and substantive grounds on January 11, 2021. Briefing on that motion was completed on March 2, 2021. The parties agreed, on March 25, 2021, along with the federal court plaintiffs discussed above, to jointly engage in mediation. The parties participated in a one-day mediation on June 7, 2021 but no settlement was reached. On December 23, 2021, the state court granted ComEd and Exelon’s motion to dismiss with prejudice. On December 30, 2021, plaintiffs filed a motion to reconsider that dismissal and for permission to amend their complaint. The court denied the plaintiffs' motion on January 21, 2022. Plaintiffs have appealed the court's ruling dismissing their complaint to the First District Court of Appeals. On February 15, 2022, Exelon and ComEd moved to dismiss the federal plaintiffs' refiled state law claims, seeking dismissal on the City’s petition. same legal grounds asserted in their motion to dismiss the original state court plaintiffs' complaint. The court granted dismissal of the refiled state claims on February 16, 2022. The original federal plaintiffs appealed that dismissal on February 18, 2022. The two state appeals were consolidated on March 21, 2022. Plaintiffs' opening appellate brief was filed on August 5, 2022. Exelon and ComEd's response was filed on November 18, 2022. Plaintiffs filed their reply brief on January 13, 2023.
On November 30, 2017, the hearing panel issued3, 2022, a tentative decision denying the City’s petition, finding that there was no material misrepresentation that would justify revocation of the TIF Agreement. On December 13, 2017, the tentative decision was adopted by the full EACC. On January 12, 2018, the Cityplaintiff filed a complaint with the Lake County, Illinois Circuit Court against ComEd and Exelon for unjust enrichment and deceptive business practices in Massachusetts Superior Courtconnection with the conduct giving rise to the DPA. Plaintiff seeks an accounting and disgorgement of any benefits ComEd allegedly obtained from said conduct. ComEd and Exelon filed a motion to dismiss the Complaint on February 3, 2023. Plaintiff’s response is due March 3, 2023, and ComEd and Exelon’s reply is due March 24, 2023. Oral argument on the motion to dismiss is currently set for April 21, 2023. Plaintiffs served initial discovery requests on ComEd in December 2022, to which ComEd has responded.
A putative class action lawsuit against Exelon and certain officers of Exelon and ComEd was filed in federal court in December 2019 alleging misrepresentations and omissions in Exelon’s SEC filings related to ComEd’s lobbying activities and the related investigations. The complaint was amended on
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Note 18 — Commitments and Contingencies
September 16, 2020, to dismiss two of the original defendants and add other defendants, including ComEd. Defendants filed a motion to dismiss in November 2020. The court denied the motion in April 2021. On May 26, 2021, defendants moved the court to certify its order denying the motion to dismiss for interlocutory appeal. Briefing on the motion was completed in June 2021. That motion was denied on January 28, 2022. In May 2021, the parties each filed respective initial discovery disclosures. On June 9, 2021, defendants filed their answer and affirmative defenses to the complaint and the parties engaged thereafter in discovery. On September 9, 2021, the U.S. government moved to intervene in the lawsuit and stay discovery until the parties entered into an amendment to their protective order that would prohibit the parties from requesting discovery into certain matters, including communications with the U.S. government. The court ordered said amendment to the protective order on November 15, 2021 and discovery resumed. The court further amended the protective order on October 17, 2022 and extended it until May 15, 2023. The next court status is set for May 8, 2023. Discovery remains ongoing.
Several shareholders have sent letters to the Exelon Board of Directors from 2020 through May 2022 demanding, among other things, that the Exelon Board of Directors investigate and address alleged breaches of fiduciary duties and other alleged violations by Exelon and ComEd officers and directors related to the conduct described in the DPA. In the first quarter of 2021, the Exelon Board of Directors appointed a Special Litigation Committee (SLC) consisting of disinterested and independent parties to investigate and address these shareholders' allegations and make recommendations to the Exelon Board of Directors based on the outcome of the SLC's investigation. In July 2021, one of the demand letter shareholders filed a derivative action against current and former Exelon and ComEd officers and directors, and against Exelon, as nominal defendant, asserting the same claims made in its demand letter. On October 12, 2021, the parties to the derivative action filed an agreed motion to stay that litigation for 120 days in order to allow the SLC to continue its investigation, which the court set asidegranted. The stay has been extended, by agreement of the EACC’s decision, grantparties several times and is currently in effect until March 17, 2023. The Parties have scheduled a mediation of this action for February 2023.
Two separate shareholder requests seeking review of certain Exelon books and records were received in August 2021 and January 2022. Exelon responded to both requests and both shareholders have since sent formal shareholder demands to the City’s requestExelon Board, as discussed above.
No loss contingencies have been reflected in Exelon’s and ComEd’s consolidated financial statements with respect to decertifythese matters, as such contingencies are neither probable nor reasonably estimable at this time.
In August 2022, the ProjectICC concluded its investigation initiated on August 12, 2021 into rate impacts of conduct admitted in the DPA, including the costs recovered from customers related to the DPA and Exelon's funding of the fine paid by ComEd. On August 17, 2022, the ICC issued its final order accepting ComEd's voluntary customer refund offer of approximately $38 million (of which about $31 million is ICC jurisdictional; the remaining balance is FERC jurisdictional) that resolves the question of whether customer funds were used for DPA related activities. The customer refund includes the cost of every individual or entity that was either (i) identified in the DPA or (ii) identified by ComEd as an associate of the former Speaker of the Illinois House of Representatives in the ICC proceeding. The ICC rejected an argument by the Illinois Attorney General, City of Chicago, and CUB that a costly permanent adjustment also needed to be made to ComEd's ratemaking capital structure on account of Exelon having funded ComEd's payment of the DPA fine with an equity infusion. On October 6, the ICC denied the application for rehearing filed by the Illinois Attorney General, City of Chicago, and CUB that specifically focused on their capital structure argument. The window to file an appeal on the ICC final order has expired and the TIF Agreement, and awardICC’s DPA investigation is now closed. An accrual for the City damages for alleged underpaid taxes over the periodamount of the TIF Agreement. Generation vigorously contestedvoluntary customer refund has been recorded in Regulatory liabilities and Regulatory assets in Exelon’s and ComEd’s Consolidated Balance Sheets as of December 31, 2022. The ICC jurisdictional refund must be made in April 2023; the City’s claims beforeFERC jurisdictional refund will be made as part of the EACCnext transmission formula rate update proceeding in 2023. The customer refund will not be recovered in rates or charged to customers and ComEd will continuenot seek or accept reimbursement or indemnification from any source other than Exelon.
Savings Plan Claim (Exelon). On December 6, 2021, seven current and former employees filed a putative ERISA class action suit in U.S. District Court for the Northern District of Illinois against Exelon, its Board of Directors, the former Board Investment Oversight Committee, the Corporate Investment Committee, individual defendants, and other unnamed fiduciaries of the Exelon Corporation Employee Savings Plan (Plan). The complaint alleges that the defendants violated their fiduciary duties under the Plan by including certain investment options that allegedly were more expensive than and underperformed similar passively-managed or
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(Dollars in millions, except per share data unless otherwise noted)

Note 18 — Commitments and Contingencies
other funds available in the Massachusetts Superior Court proceeding. Generation continuesmarketplace and permitting a third-party administrative service provider/recordkeeper and an investment adviser to believe thatcharge excessive fees for the City’s claim lacks merit. Accordingly, Generation has not recorded a liability for payment resulting from such a revocation, nor can Generation estimate a reasonably possible range of loss, if any, associated with any such revocation.  Further, it is reasonably possible that property taxes assessed in future periods, including those following the expirationservices provided. The plaintiffs seek declaratory, equitable and monetary relief on behalf of the current TIF AgreementPlan and participants. On February 16, 2022, the court granted the parties' stipulated dismissal of the individual named defendants without prejudice. The remaining defendants filed a motion to dismiss the complaint on February 25, 2022. On March 4, 2022, the Chamber of Commerce filed a brief of amicus curiae in 2019, could be materialsupport of the defendants' motion to Generation’s results of operationsdismiss. On September 22, 2022, the court granted Exelon’s motion to dismiss without prejudice. The court granted plaintiffs leave until October 31, 2022 to file an amended complaint, which was later extended to November 30, 2022. Plaintiffs filed their amended complaint on November 30, 2022. Defendants filed their motion to dismiss the amended complaint on January 20, 2023. Plaintiffs' response is due February 17, 2023, and cash flows.defendants' reply is due February 24, 2023. No loss contingencies have been reflected in Exelon’s consolidated financial statements with respect to this matter, as such contingencies are neither probable nor reasonably estimable at this time.
General
(All Registrants). The Registrants are involved in various other litigation matters that are being defended and handled in the ordinary course of business. The Registrants are also from time to time subject to audits and investigations by the FERC and other regulators. The assessment of whether a loss is probable or a reasonable possibility,reasonably possible, and whether the loss or a range of loss is estimable, often involves a series of complex judgments about future events. The Registrants maintain accruals for such losses that are probable of being incurred and subject to reasonable estimation. Management is sometimes unable to estimate an amount or range of reasonably possible loss, particularly where (1) the damages sought are indeterminate, (2) the proceedings are in the early stages, or (3) the matters involve novel or unsettled legal theories. In such cases, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss.
Income Taxes
See Note 14 — Income Taxes for information regarding the Registrants’ income tax refund claims and certain tax positions, including the 1999 sale of fossil-generating assets.
24. Supplemental Financial Information19. Shareholders' Equity (All Registrants)
Supplemental StatementEquity Securities Offering (Exelon)
On August 4, 2022, Exelon entered into an agreement with certain underwriters in connection with an underwritten public offering (the “Offering”) of Operations Information
11.3 million shares (the “Shares”) of its common stock, no par value (“Common Stock”). The following tables provideShares were sold to the underwriters at a price per share of $43.32. Exelon also granted the underwriters an option to purchase an additional 1.695 million shares of Common Stock also at the price per share of $43.32. On August 5, 2022, the underwriters exercised the option in full. The net proceeds from the Offering and the exercise of the underwriters’ option were $563 million before expenses paid by Exelon. Exelon used the proceeds, together with available cash balances, to repay $575 million in borrowings under a $1.15 billion term loan credit facility. See Note 16 — Debt and Credit Agreements for additional information abouton Exelon’s term loan.
At-the-Market (ATM) Program(Exelon)
On August 4, 2022, Exelon executed an equity distribution agreement (“Equity Distribution Agreement”), with certain sales agents and forward sellers and certain forward purchasers, establishing an ATM equity distribution program under which it may offer and sell shares of its Common Stock, having an aggregate gross sales price of up to $1.0 billion. Exelon has no obligation to offer or sell any shares of Common Stock under the Registrants’ Consolidated StatementsEquity Distribution Agreement and may, at any time, suspend or terminate offers and sales under the Equity Distribution Agreement. As of Operations and Comprehensive Income for the years ended December 31, 2017, 20162022, Exelon has not issued any shares of Common Stock under the ATM program and 2015.has not entered into any forward sale agreements.
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 For the year ended December 31, 2017
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Taxes other than income                 
Utility(a)
$898
 $126
 $240
 $125
 $89
 $318
 $300
 $18
 $
Property545
 269
 28
 14
 132
 101
 62
 32
 3
Payroll230
 121
 26
 15
 15
 26
 6
 4
 2
Other58
 39
 2
 
 4
 7
 3
 3
 1
Total taxes other than income$1,731
 $555
 $296
 $154
 $240

$452
 $371

$57

$6

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 19 — Shareholders' Equity
                 Successor  Predecessor
 For the year ended December 31, 2016 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016
 Exelon Generation ComEd PECO BGE Pepco DPL ACE PHI  PHI
Taxes other than income                 
Utility(a)
$753
 $122
 $242
 $136
 $85
 $312
 $18
 $
 $253
  $78
Property483
 246
 27
 13
 123
 53
 31
 3
 73
  18
Payroll226
 117
 28
 15
 17
 8
 5
 3
 23
  8
Other114
 21
 (4) 
 4
 4
 1
 1
 5
  1
Total taxes other than income$1,576
 $506
 $293
 $164
 $229

$377

$55

$7
 $354
  $105
ComEd Common Stock Warrants
The following table presents warrants outstanding to purchase ComEd common stock and shares of common stock reserved for the conversion of warrants. The warrants entitle the holders to convert such warrants into common stock of ComEd at a conversion rate of one share of common stock for three warrants.
 For the year ended December 31, 2015
           Predecessor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Taxes other than income                 
Utility(a)
$474
 $105
 $236
 $133
 $85
 $326
 $308
 $18
 $
Property407
 250
 27
 11
 119
 94
 57
 28
 3
Payroll201
 118
 28
 14
 16
 27
 6
 4
 2
Other118
 16
 5
 2
 4
 8
 5
 1
 2
Total taxes other than income$1,200
 $489
 $296
 $160
 $224

$455

$376

$51

$7
December 31,
20222021
Warrants outstanding60,052 60,061 
Common Stock reserved for conversion20,017 20,020 
__________ Share Repurchases
There currently is no Exelon Board of Director authority to repurchase shares. Any previous shares repurchased are held as treasury shares, at cost, unless cancelled or reissued at the discretion of Exelon’s management.
Preferred and Preference Securities
The following table presents Exelon, ComEd, PECO, BGE, Pepco, and ACE's shares of preferred securities authorized, none of which were outstanding, as of December 31, 2022 and 2021. There are no shares of preferred securities authorized for DPL.
(a)Generation’s utility tax represents gross receipts tax related to its retail operations and ComEd’s, PECO’s, BGE’s, Pepco's, DPL's and ACE's utility taxes represent municipal and state utility taxes and gross receipts taxes related to their operating revenues. The offsetting collection of utility taxes from customers is recorded in revenues on the Registrants’ Consolidated Statements of Operations and Comprehensive Income.Preferred Securities Authorized
Exelon100,000,000 
ComEd850,000 
PECO15,000,000 
BGE1,000,000 
Pepco6,000,000 
ACE(a)
2,799,979 
_________

(a)Includes 799,979 shares of cumulative preferred stock and 2,000,000 of no-par preferred stock as of December 31, 2022 and 2021.
The following table presents ComEd's, BGE's, and ACE's preference securities authorized, none of which were outstanding as of December 31, 2022 and 2021. There are no shares of preference securities authorized for Exelon, PECO, Pepco, and DPL.
Preference Securities Authorized
ComEd6,810,451 
BGE(a)
6,500,000 
ACE3,000,000 
__________
(a)Includes 4,600,000 shares of unclassified preference securities and 1,900,000 shares of previously redeemed preference securities as of December 31, 2022 and 2021.

20. Stock-Based Compensation Plans (All Registrants)
Stock-Based Compensation Plans
Exelon grants stock-based awards through its LTIP, which primarily includes performance share awards, restricted stock units, and stock options. At December 31, 2022, there were approximately 34 million shares authorized for issuance under the LTIP. For the years ended December 31, 2022, 2021, and 2020, exercised and distributed stock-based awards were primarily issued from authorized but unissued common stock shares.
Separation-related Adjustments. In connection with the separation, Exelon and Constellation entered into an Employee Matters Agreement, effective February 1, 2022. Under the terms of the Employee Matters Agreement,
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(Dollars in millions, except per share data unless otherwise noted)


Note 20 — Stock-Based Compensation Plans
and pursuant to the terms of the LTIP, the Compensation Committee of the Board of Exelon approved an adjustment to outstanding awards granted under the LTIP in order to preserve the intrinsic aggregate value of such awards before the separation. The separation-related adjustments did not have a material impact on either compensation expense or the potentially dilutive securities to be considered in the calculation of diluted earnings per share of common stock. Former Exelon employees transferred to Constellation as a result of the separation surrendered their outstanding unvested Exelon awards effective February 1, 2022.
The Registrants grant cash awards. The following table does not include expense related to these plans as they are not considered stock-based compensation plans under the applicable authoritative guidance.
The following table presents the stock-based compensation expense included in Exelon's Consolidated Statements of Operations and Comprehensive Income. The Utility Registrants' stock-based compensation expense for the years ended December 31, 2022, 2021, and 2020 was not material.
Year Ended December 31,
Exelon202220212020
Total stock-based compensation expense included in operating and maintenance expense$41 $95 $37 
Income tax benefit(10)(25)(9)
Total after-tax stock-based compensation expense$31 $70 $28 
Exelon receives a tax deduction based on the intrinsic value of the award on the exercise date for stock options and the distribution date for performance share awards and restricted stock units. For each award, throughout the requisite service period, Exelon recognizes the tax benefit related to compensation costs. The following table presents information regarding Exelon’s realized tax benefit when distributed:
Year Ended December 31,
202220212020
Performance share awards$$$15 
Restricted stock units
Performance Share Awards
Performance share awards are granted under the LTIP. The performance share awards are settled 50% in common stock and 50% in cash at the end of the three-year performance period, except for awards that are settled 100% in cash if certain ownership requirements are satisfied.
The common stock portion of the performance share awards is considered an equity award and is valued based on Exelon's stock price on the grant date. The cash portion of the performance share awards is considered a liability award which is remeasured each reporting period based on Exelon’s current stock price. As the value of the common stock and cash portions of the awards are based on Exelon’s stock price during the performance period, coupled with changes in the total shareholder return modifier and expected payout of the award, the compensation costs are subject to volatility until payout is established.
For nonretirement-eligible employees, stock-based compensation costs are recognized over the vesting period of three years using the straight-line method. For performance share awards granted to retirement-eligible employees, the value of the performance shares is recognized ratably over the vesting period, which is the year of grant.
Exelon processes forfeitures as they occur for employees who do not complete the requisite service period.
The following table summarizes Exelon’s nonvested performance share awards activity:
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 For the year ended December 31, 2017
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Other, Net                 
Decommissioning-related activities:                 
Net realized income on decommissioning
trust funds(a)
                 
Regulatory agreement units$488
 $488
 $
 $
 $
 $
 $
 $
 $
Non-regulatory agreement units209
 209
 
 
 
 
 
 
 
Net unrealized gains on decommissioning
trust funds
                 
Regulatory agreement units455
 455
 
 
 
 
 
 
 
Non-regulatory agreement units521
 521
 
 
 
 
 
 
 
Net unrealized losses on pledged assets                 
Zion Station decommissioning(10) (10) 
 
 
 
 
 
 
Regulatory offset to decommissioning trust
fund-related activities(b)
(724) (724) 
 
 
 
 
 
 
Total decommissioning-related activities939

939






 






Investment income8
 6
 
 
 
 2
 1
 
 
Interest income (expense) related to uncertain income tax positions3
 (1)





 
 
 
 
Penalty related to uncertain income tax positions(c)
2
 
 
 
 
 
 
 
 
AFUDC—Equity73
 
 12
 9
 16
 36
 23
 7
 6
Other31
 4
 10
 
 
 16
 8
 7
 1
Other, net$1,056

$948

$22

$9

$16
 $54

$32

$14

$7


Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 20 — Stock-Based Compensation Plans
SharesWeighted Average
Grant Date Fair
Value (per share)
Nonvested at December 31, 2021(a)
1,222,516 $44.96 
Granted727,697 43.05 
Change in performance(216,981)42.73 
Vested(233,318)47.39 
Forfeited(86,128)42.61 
Awards surrendered as a result of the separation(2,308,745)
Awards granted in conversion as a result of the separation1,870,990 
Undistributed vested awards(b)(c)
(109,226)4.55 
Nonvested at December 31, 2022(a)
866,805 $41.86 
__________
(a)Excludes 1,539,819 and 1,934,238 of performance share awards issued to retirement-eligible employees as of December 31, 2022 and 2021, respectively, as they are fully vested.
(b)The significant reduction in weighted average grant date fair value during 2022 primarily resulted from more pre-separation shares being surrendered than shares issued to Exelon retirement eligible employees post-separation.
(c)Represents performance share awards that vested but were not distributed to retirement-eligible employees during 2022.
The following table summarizes the weighted average grant date fair value and the total fair value of performance share awards vested.
Year Ended December 31,
2022(a)
20212020
Weighted average grant date fair value (per share)$43.05 $43.37 $46.61 
Total fair value of performance shares vested29 44 39 
Total fair value of performance shares settled in cash25 28 63 
__________
(a)As of December 31, 2022, $12 million of total unrecognized compensation costs related to nonvested performance shares are expected to be recognized over the remaining weighted-average period of 1.8 years.
Restricted Stock Units
Restricted stock units are granted under the LTIP with the majority being settled in a specific number of shares of common stock after the service condition has been met. The corresponding cost of services is measured based on the grant date fair value of the restricted stock unit issued.
The value of the restricted stock units is expensed over the requisite service period using the straight-line method. The requisite service period for restricted stock units is generally three to five years. However, certain restricted stock unit awards become fully vested upon the employee reaching retirement-eligibility. The value of the restricted stock units granted to retirement-eligible employees is either recognized ratably over the first six months in the year of grant if the employee reaches retirement eligibility prior to July 1st of the grant year or through the date of which the employee reaches retirement eligibility. Exelon processes forfeitures as they occur for employees who do not complete the requisite service period.
The following table summarizes Exelon’s nonvested restricted stock unit activity:
259




                 Successor  Predecessor
 For the year ended December 31, 2016 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016
 Exelon Generation ComEd PECO BGE Pepco DPL ACE PHI  PHI
Other, Net                    
Decommissioning-related activities:                    
Net realized income on decommissioning trust
funds(a)
                    
Regulatory agreement units$237
 $237
 $
 $
 $
 $
 $
 $
 $
  $
Non-regulatory agreement units126
 126
 
 
 
 
 
 
 
  
Net unrealized gains on decommissioning trust funds                    
Regulatory agreement units216
 216
 
 
 
 
 
 
 
  
Non-regulatory agreement units194
 194
 
 
 
 
 
 
 
  
Net unrealized losses on pledged assets                    
Zion Station decommissioning(1) (1) 
 
 
 
 
 
 
  
Regulatory offset to decommissioning trust fund-related activities(b)
(372) (372) 
 
 
 
 
 
 
  
Total decommissioning-related activities400

400












 
  
Investment income (loss)17
 8
 
 (1) 2
 1
 
 1
 1
  
Long-term lease income4
 
 
 
 
 
 
 
 
  
Interest income (expense) related to uncertain income tax positions13








 1
 
 
 (1)  
Penalty related to uncertain income tax positions(c)
(106) 
 (86) 
 
 
 
 
 
  
AFUDC—Equity64
 
 14
 8
 19
 19
 5
 6
 23
  7
Loss on debt extinguishment(3) (2) 
 
 
 
 
 
 
  
Other24
 (5) 7
 1
 
 15
 8
 2
 21
  (11)
Other, net$413

$401

$(65)
$8

$21

$36

$13

$9
 $44
  $(4)

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 20 — Stock-Based Compensation Plans
SharesWeighted Average
Grant Date Fair
Value (per share)
Nonvested at December 31, 2021(a)
1,142,049 $43.52 
Granted468,514 42.97 
Vested(499,621)42.28 
Forfeited(71,816)41.89 
Awards surrendered as a result of the separation(943,509)
Awards granted in conversion as a result of the separation643,994
Undistributed vested awards(b)
(178,450)38.24 
Nonvested at December 31, 2022(a)
561,161$41.98 
__________
(a)Excludes 476,592 and 609,934 of restricted stock units issued to retirement-eligible employees as of December 31, 2022 and 2021, respectively, as they are fully vested.
(b)Represents restricted stock units that vested but were not distributed to retirement-eligible employees during 2022.
The following table summarizes the weighted average grant date fair value and the total fair value of restricted stock units vested.
Year Ended December 31,
2022(a)
20212020
Weighted average grant date fair value (per share)$42.97 $44.21 $46.33 
Total fair value of restricted stock units vested23 34 54 
__________
(a)As of December 31, 2022, $11 million of total unrecognized compensation costs related to nonvested restricted stock units are expected to be recognized over the remaining weighted-average period of 1.90 years.
Stock Options
Non-qualified stock options to purchase shares of Exelon’s common stock were granted through 2012 under the LTIP. The exercise price of the stock options is equal to the fair market value of the underlying stock on the date of option grant. Stock options will expire no later than ten years from the date of grant.
At December 31, 2022 all stock options were vested and exercised.
The following table presents information with respect to stock option activity:
SharesWeighted
Average
Exercise
Price
(per share)
Weighted
Average
Remaining
Contractual
Life
(years)
Aggregate
Intrinsic
Value
Balance of shares outstanding at December 31, 202127,007 $46.47 0.15$— 
Options exercised(27,644)38.56 — 
Options expired— — 
Awards surrendered as a result of the separation(2,000)
Awards granted in conversion as a result of the separation2,637 
Balance of shares outstanding at December 31, 2022— $— 0$— 
Exercisable at December 31, 2022— $— 0$— 
The following table summarizes additional information regarding stock options exercised:
260




 For the year ended December 31, 2015
           Predecessor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Other, Net                 
Decommissioning-related activities:                 
Net realized income on decommissioning trust funds(a)
                 
Regulatory agreement units$232
 $232
 $
 $
 $
 $
 $
 $
 $
Non-regulatory agreement units156
 156
 
 
 
 
 
 
 
Net unrealized losses on decommissioning trust funds                 
Regulatory agreement units(282) (282) 
 
 
 
 
 
 
Non-regulatory agreement units(197) (197) 
 
 
 
 
 
 
Net unrealized gains on pledged assets                 
Zion Station decommissioning7
 7
 
 
 
 
 
 
 
Regulatory offset to decommissioning trust fund-related activities(b)
21
 21
 
 
 
 
 
 
 
Total decommissioning-related activities(63)
(63)













Investment income (loss)8
 3
 
 (2) 4
 
 
 
 
Long-term lease income15
 
 
 
 
 
 
 
 
Interest income related to uncertain income tax positions1
 1
 
 
 
 34
 5
 
 
AFUDC—Equity24
 
 5
 5
 14
 14
 12
 1
 1
Terminated interest rate swaps(d)
(26) 
 
 
 
 
 
 
 
PHI merger related debt exchange(e)
(22) 
 
 
 
 
 
 
 
Other17
 (1) 16
 2
 
 40
 11
 9
 2
Other, net$(46)
$(60)
$21

$5

$18

$88

$28

$10

$3
__________ 
(a)Includes investment income and realized gains and losses on sales of investments within the nuclear decommissioning trust funds.
(b)Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of net income taxes related to all NDT fund activity for those units. See Note 15 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.
(c)See Note 14—Income Taxes for discussion of the penalty related to the Tax Court’s decision on Exelon’s like-kind exchange tax position.
(d)In January 2015, in connection with Generation's $750 million issuance of five-year Senior Unsecured Notes, Exelon terminated certain floating-to-fixed interest rate swaps. As the original forecasted transactions were a series of future interest payments over a ten-year period, a portion of the anticipated interest payments are probable not to occur. As a result, $26 million of anticipated payments were reclassified from AOCI to Other, net in Exelon's Consolidated Statements of Operations and Comprehensive Income.
(e)See Note 13—Debt and Credit Agreements and Note 4—Mergers, Acquisitions and Dispositions for additional information on the PHI merger related debt exchange.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 20 — Stock-Based Compensation Plans
Supplemental Cash Flow Information
Year Ended December 31,
202220212020
Intrinsic value(a)
$— $11 $
Cash received for exercise price37 18 
__________
(a)The difference between the market value on the date of exercise and the option exercise price.

21. Changes in Accumulated Other Comprehensive Income (Exelon)
The following tables providepresent changes in Exelon's AOCI, net of tax, by component:
Cash Flow
Hedges
Pension and
Non-Pension
Postretirement
Benefit Plan
Items
(a)
Foreign
Currency
Items
Total
Balance at December 31, 2019$(2)$(3,165)

$(27)$(3,194)
OCI before reclassifications(3)(357)(356)
Amounts reclassified from AOCI— 150 — 150 
Net current-period OCI(3)(207)(206)
Balance at December 31, 2020$(5)$(3,372)$(23)$(3,400)
OCI before reclassifications(1)432 — 431 
Amounts reclassified from AOCI— 219 — 219 
Net current-period OCI(1)651 — 650 
Balance at December 31, 2021$(6)$(2,721)$(23)$(2,750)
Separation of Constellation1,994 23 2,023 
OCI before reclassifications46 — 48 
Amounts reclassified from AOCI— 41 — 41 
Net current-period OCI87 — 89 
Balance at December 31, 2022$$(640)$— $(638)
__________ 
(a)This AOCI component is included in the computation of net periodic pension and OPEB cost. Additionally, as of February 1, 2022, in connection with the separation, Exelon's pension and OPEB plans were remeasured. See Note 14 — Retirement Benefits for additional information regarding the Registrants’ Consolidatedinformation. See Exelon's Statements of Cash FlowsOperations and Comprehensive Income for the years ended December 31, 2017, 2016 and 2015.individual components of AOCI.
The following table presents income tax benefit (expense) allocated to each component of Exelon's other comprehensive income (loss):
 For the Years Ended December 31,
 202220212020
Pension and non-pension postretirement benefit plans:
Prior service benefit reclassified to periodic benefit cost$— $$16 
Actuarial loss reclassified to periodic benefit cost(14)(76)(66)
Pension and non-pension postretirement benefit plans valuation adjustment(14)(153)122 
261



 For the year ended December 31, 2017
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Depreciation, amortization and accretion                 
Property, plant and equipment$3,293
 $1,409
 $777
 $261
 $312
 $457
 $203
 $124
 $89
Regulatory assets478
 
 73
 25
 161
 218
 118
 43
 57
Amortization of intangible assets, net57
 48
 
 
 
 
 
 
 
Amortization of energy contract assets and liabilities(a)
35
 35
 
 
 
 
 
 
 
Nuclear fuel(b)
1,096
 1,096
 
 
 
 
 
 
 
ARO accretion(c)
468
 468
 
 
 
 
 
 
 
Total depreciation, amortization and accretion$5,427
 $3,056
 $850

$286
 $473

$675
 $321

$167

$146

                 Successor  Predecessor
 For the year ended December 31, 2016 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016
 Exelon Generation ComEd PECO BGE Pepco DPL ACE PHI  PHI
Depreciation, amortization and accretion                
Property, plant and equipment$3,477
 $1,835
 $708
 $244
 $299
 $175
 $110
 $82
 $325
  $94
Regulatory assets407
 
 67
 26
 124
 120
 47
 83
 190
  58
Amortization of intangible assets, net52
 44
 
 
 
 
 
 
 
  
Amortization of energy contract assets and liabilities(a)
35
 35
 
 
 
 
 
 
 
  
Nuclear fuel(b)
1,159
 1,159
 
 
 
 
 
 
 
  
ARO accretion(c)
446
 446
 
 
 
 
 
 
 
  
Total depreciation, amortization and accretion$5,576

$3,519

$775

$270

$423

$295

$157

$165

$515
  $152

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 22 — Supplemental Financial Information
 For the year ended December 31, 2015
                 Predecessor
 Exelon Generation ComEd PECO BGE Pepco DPL ACE PHI
Depreciation, amortization and accretion                 
Property, plant and equipment$2,227
 $1,007
 $635
 $240
 $289
 $164
 $103
 $76
 $392
Regulatory assets170
 
 72
 20
 77
 92
 45
 99
 232
Amortization of intangible assets, net54
 47
 
 
 
 
 
 
 
Amortization of energy contract assets and liabilities(a)
22
 22
 
 
 
 
 
 
 
Nuclear fuel(b)
1,116
 1,116
 
 
 
 
 
 
 
ARO accretion(c)
398
 397
 
 
 
 
 
 
 
Total depreciation, amortization and accretion$3,987
 $2,589

$707

$260

$366

$256

$148

$175
 $624
22. Supplemental Financial Information (All Registrants)
Supplemental Statement of Operations Information
The following tables provide additional information about material items recorded in the Registrants' Consolidated Statements of Operations and Comprehensive Income.
Taxes other than income taxes
ExelonComEdPECOBGEPHIPepcoDPLACE
For the year ended December 31, 2022
Utility(a)
$878 $306 $166 $94 $312 $283 $25 $
Property377 31 17 191 138 94 42 
Payroll117 28 16 17 25 
For the year ended December 31, 2021
Utility(a)
$774 $246 $139 $88 $301 $278 $22 $
Property364 39 18 176 131 88 40 
Payroll124 27 16 18 27 
For the year ended December 31, 2020
Utility(a)
$759 $238 $135 $87 $299 $275 $21 $
Property336 30 16 164 126 84 39 
Payroll121 27 16 17 25 
__________
(a)Included in Operating revenues or Purchased power and fuel on the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
(b)Included in Purchased power and fuel expense on the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
(c)Included in Operating and maintenance expense on the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
(a)The Registrants’ utility taxes represents municipal and state utility taxes and gross receipts taxes related to their operating revenues. The offsetting collection of utility taxes from customers is recorded in revenues in the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
Other, net
ExelonComEdPECOBGEPHIPepcoDPLACE
For the year ended December 31, 2022
AFUDC—Equity$150 $35 $31 $21 $63 $48 $$
Non-service net periodic benefit cost63 — — — — — — — 
For the year ended December 31, 2021
AFUDC—Equity$136 $34 $26 $27 $49 $40 $$
Non-service net periodic benefit cost91 — — — — — — — 
For the year ended December 31, 2020
AFUDC—Equity$104 $29 $17 $22 $36 $28 $$
Non-service net periodic benefit cost53 — — — — — — — 

262




 For the year ended December 31, 2017
           Successor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Cash paid (refunded) during the year:                 
Interest (net of amount capitalized)$2,430
 $391
 $307
 $103
 $96
 $236
 $114
 $49
 $59
Income taxes (net of refunds)540
 337
 83
 47
 (2) (144) (104) (49) (2)
Other non-cash operating activities:                 
Pension and non-pension postretirement benefit costs$643
 $227
 $176
 $29
 $62
 $94
 $25
 $13
 $13
Loss (Gain) from equity method investments32
 33
 
 
 
 (1) 
 
 
Provision for uncollectible accounts125
 38
 34
 26
 8
 19
 8
 3
 8
Provision for excess and obsolete inventory56
 51
 3
 
 
 2
 1
 1
 
Stock-based compensation costs88
 
 
 
 
 
 
 
 
Other decommissioning-related activity(a)
(313) (313) 
 
 
 
 
 
 
Energy-related options(b)
7
 7
 
 
 
 
 
 
 
Amortization of regulatory asset related to debt costs9
 
 4
 1
 
 4
 2
 1
 1
Amortization of rate stabilization deferral(10) 
 
 
 7
 (17) (17) 
 
Amortization of debt fair value adjustment(18) (12) 
 
 
 (6) 
 
 
Merger-related commitments (c)

 
 
 
 
 (8) (6) (2) 
Severance costs35
 31
 
 
 
 3
 
 
 
Amortization of debt costs64
 37
 5
 2
 2
 4
 2
 
 1

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 22 — Supplemental Financial Information
Supplemental Cash Flow Information
The following tables provide additional information about material items recorded in the Registrants' Consolidated Statements of Cash Flows.
Depreciation, amortization, and accretion
Exelon(a)
ComEdPECOBGEPHIPepcoDPLACE
For the year ended December 31, 2022
Property, plant, and equipment(b)
$2,690 $1,031 $359 $476 $680 $288 $191 $173 
Amortization of regulatory assets(b)
718 292 14 154 258 129 41 88 
Amortization of intangible assets, net(b)
12 — — — — — — — 
Amortization of energy contract assets and liabilities(c)
— — — — — — — 
Nuclear fuel(d)
66 — — — — — — — 
ARO accretion(e)
44 — — — — — — — 
Total depreciation, amortization, and accretion$3,533 $1,323 $373 $630 $938 $417 $232 $261 
For the year ended December 31, 2021
Property, plant, and equipment(b)
$5,384 $970 $336 $439 $627 $274 $169 $155 
Amortization of regulatory assets(b)
594 235 12 152 194 129 41 24 
Amortization of intangible assets, net(b)
58 — — — — — — — 
Amortization of energy contract assets and liabilities(c)
31 — — — — — — — 
Nuclear fuel(d)
992 — — — — — — — 
ARO accretion(e)
514 — — — — — — — 
Total depreciation, amortization, and accretion$7,573 $1,205 $348 $591 $821 $403 $210 $179 
For the year ended December 31, 2020
Property, plant, and equipment(b)
$4,364 $922 $319 $397 $586 $257 $155 $140 
Amortization of regulatory assets(b)
588 211 28 153 196 120 36 40 
Amortization of intangible assets, net(b)
62 — — — — — — — 
Amortization of energy contract assets and liabilities(c)
30 — — — — — — — 
Nuclear fuel(d)
983 — — — — — — — 
ARO accretion(e)
500 — — — — — — — 
Total depreciation, amortization, and accretion$6,527 $1,133 $347 $550 $782 $377 $191 $180 
__________
(a)Exelon's amounts include amounts related to Generation prior to the separation. See Note 2 — Discontinued Operations for additional information.
(b)Included in Depreciation and amortization in the Registrants' Consolidated Statements of Operations and Comprehensive Income.
(c)Included in Electric operating revenues or Purchased power expense in Exelon’s Consolidated Statements of Operations and Comprehensive Income.
(d)Included in Purchased fuel expense in Exelon’s Consolidated Statements of Operations and Comprehensive Income.
(e)Included in Operating and maintenance expense in Exelon's Consolidated Statements of Operations and Comprehensive Income.
263




Discrete impacts from EIMA and FEJA(d)
(52) 
 (52) 
 
 
 
 
 
Vacation accrual adjustment(e)
(68) (35) (12) 
 
 (8) (8) 
 
Long-term incentive plan109
 
 
 
 
 
 
 
 
Change in environmental liabilities44
 44
 
 
 
 
 
 
 
Other(30) 4
 6
 (4) (14) (27) (12) (7) (6)
Total other non-cash operating activities$721

$112

$164

$54

$65

$59
 $(5) $9
 $17
Non-cash investing and financing activities:                 
Increase (decrease) in capital expenditures not paid$42
 $73
 $(61) $22
 $23
 $(12) $5
 $4
 $(13)
Change in PPE related to ARO update29
 29
 
 
 
 
 
 
 
Non-cash financing of capital projects16
 16
 
 
 
 
 
 


Indemnification of like-kind exchange position (f)

 
 21
 
 
 
 
 
 
Dividends on stock compensation7
 
 
 
 
 
 
 
 
Dissolution of financing trust due to long-term debt retirement8
 
 
 
 8
 
 
 
 
Fair value adjustment of long-term debt due to retirement(5) 
 
 
 
 
 
 
 
Fair value of pension and OPEB obligation transferred in connection with FitzPatrick
 33
 
 
 
 
 
 
 
__________ 
(a)Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.
(b)Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.
(c)See Note 4 - Mergers, Acquisitions and Dispositions for more information.
(d)Reflects the change in ComEd's distribution and energy efficiency formula rates . See Note 3 — Regulatory Matters for more information.
(e)On December 1, 2017, Exelon adopted a single, standard vacation accrual policy for all non-represented, non-craft (represented and craft policies remained unchanged) employees effective January 1, 2018.  To reflect the new policy, Exelon recorded a one-time, $68 million pre-tax credit to expense to reverse 2018 vacation cost originally accrued throughout 2017 that will now be accrued ratably over the year in 2018.
(f)See Note 14 — Income Taxes for discussion of the like-kind exchange tax position.


Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 22 — Supplemental Financial Information
Cash paid (refunded) during the year:
Exelon(a)
ComEdPECOBGEPHIPepcoDPLACE
For the year ended December 31, 2022
Interest (net of amount capitalized)$1,434 $396 $166 $147 $274 $141 $63 $60 
Income taxes (net of refunds)73 23 31 16 19 28 (2)(6)
For the year ended December 31, 2021
Interest (net of amount capitalized)$1,505 $372 $152 $134 $255 $132 $59 $56 
Income taxes (net of refunds)281 (72)(4)(38)— 12 (9)
For the year ended December 31, 2020
Interest (net of amount capitalized)$1,521 $371 $144 $125 $257 $129 $61 $57 
Income taxes (net of refunds)10 (61)(37)(57)46 40 12 (3)
__________
(a)Exelon's amounts include amounts related to Generation prior to the separation. See Note 2 — Discontinued Operations for additional information.
264




                 Successor  Predecessor
 For the year ended December 31, 2016 March 24, 2016 to December 31, 2016  January 1, 2016 to March 23, 2016
 Exelon Generation ComEd PECO BGE Pepco DPL ACE PHI  PHI
Cash paid (refunded) during the year:                    
Interest (net of amount capitalized)$1,340
 $339
 $298
 $104
 $92
 $118
 $47
 $62
 $209
  $43
Income taxes (net of refunds)(441) 435
 (444) 64
 31
 216
 115
 200
 258
  11
Other non-cash operating activities:                    
Pension and non-pension postretirement benefit costs$619
 $218
 $166
 $33
 $67
 $31
 $18
 $15
 $86
  $23
Loss from equity method investments24
 25
 
 
 
 
 
 
 
  
Provision for uncollectible accounts155
 19
 41
 30
 1
 29
 23
 32
 65
  16
Stock-based compensation costs111
 
 
 
 
 
 
 
 
  3
Other decommissioning-related activity(a)
(384) (384) 
 
 
 
 
 
 
  
Energy-related options(b)
(11) (11) 
 
 
 
 
 
 
  
Amortization of regulatory asset related to debt costs9
 
 4
 1
 
 2
 1
 1
 3
  1
Amortization of rate stabilization deferral76
 
 
 
 81
 (12) 2
 
 (5)  5
Amortization of debt fair value adjustment(11) (11) 
 
 
 
 
 
 
  
Merger-related commitments (c)(d)
558
 53
 
 
 
 125
 82
 110
 317
  
Severance costs99
 22
 
 
 
 
 
 
 56
  
Discrete impacts from EIMA(e)
8
 
 8
 
 
 
 
 
 
  
Amortization of debt costs35
 17
 4
 3
 1
 
 
 
 1
  
Provision for excess and obsolete inventory12
 6
 4
 
 
 3
 1
 1
 1
  1
Lower of cost or market inventory adjustment37
 36
 
 1
 
 
 
 
 
  
Baltimore City Conduit Lease Settlement(28) 
 
 
 (28) 
 
 
 
  
Cash Working Capital Order(13) 
 
 
 (13) 
 
 
 
  
Asset Retirement Costs2
 
 
 
 
 
 1
 2
 2
  
Long-term incentive plan70
 
 
 
 
 
 
 
 
  
Other(35) 25
 (12) (3) (21) 5
 (14) (6) (12)  (3)
Total other non-cash operating activities$1,333

$15

$215

$65

$88

$183

$114

$155

$514
  $46
Non-cash investing and financing activities:                    
Increase (decrease) in capital expenditures not paid

$(128) $50
 $(91) $(11) $(86) $27
 $(12) $11
 $21
  $11

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 22 — Supplemental Financial Information
Other non-cash operating activities:
Exelon(a)
ComEdPECOBGEPHIPepcoDPLACE
For the year ended December 31, 2022
Pension and non-pension postretirement benefit costs$164 $60 $(9)$44 $53 $$$12 
Allowance for credit losses173 46 45 25 58 29 12 16 
Other decommissioning-related activity36 — — — — — — — 
Energy-related options60 — — — — — — — 
True-up adjustments to decoupling mechanisms and formula rates(b)
(168)(267)(2)47 54 31 16 
Long-term incentive plan42 — — — — — — — 
Amortization of operating ROU asset56 — 14 27 
AFUDC - Equity(150)(35)(31)(21)(63)(48)(7)(8)
For the year ended December 31, 2021
Pension and non-pension postretirement benefit costs$411 $129 $$61 $49 $$$11 
Allowance for credit losses160 47 39 17 24 10 
Other decommissioning-related activity(946)— — — — — — — 
Energy-related options125 — — — — — — — 
True-up adjustments to decoupling mechanisms and formula rates(b)
(171)(42)(26)(12)(91)(53)(14)(24)
Severance costs(57)— — — — — 
Long-term incentive plan137 — — — — — — — 
Amortization of operating ROU asset183 — 29 28 
AFUDC - Equity(136)(34)(26)(27)(49)(40)(6)(3)
For the year ended December 31, 2020
Pension and non-pension postretirement benefit costs$411 $114 $$62 $70 $15 $$14 
Allowance for credit losses150 32 42 15 43 24 16 
Other decommissioning-related activity(659)— — — — — — — 
Energy-related options104 — — — — — — — 
True-up adjustments to decoupling mechanisms and formula rates(c)
(6)47 (16)(16)(21)(40)12 
Severance costs105 — — — — — 
Provision for excess and obsolete inventory131 — — — — — 
Long-term incentive plan56 — — — — — — — 
Amortization of operating ROU Asset222 31 28 
Asset impairments— 15 — — 13 — 
AFUDC - Equity(104)(29)(17)(22)(36)(28)(4)(4)
__________
(a)Exelon's amounts include amounts related to Generation prior to the separation. See Note 2 — Discontinued Operations for additional information.
(b)For ComEd, reflects the true-up adjustments in regulatory assets and liabilities associated with its distribution, energy efficiency, distributed generation, and transmission formula rates. For PECO, reflects the change in regulatory assets and liabilities associated with its transmission formula rate. For BGE, Pepco, DPL, and ACE, reflects the change in regulatory assets and liabilities associated with their decoupling mechanisms and transmission formula rates. See Note 3 — Regulatory Matters for additional information.
(c)For ComEd, reflects the true-up adjustments in regulatory assets and liabilities associated with its distribution, energy efficiency, distributed generation, and transmission formula rates. For BGE, Pepco, and DPL, reflects the change in regulatory assets and liabilities associated with their decoupling mechanisms and transmission formula rates. For PECO and ACE, reflects the change in regulatory assets and liabilities associated with their transmission formula rates. See Note 3 — Regulatory Matters for additional information

265




Change in PPE related to ARO update191
 191
 
 
 
 
 
 
 
  
Indemnification of like-kind exchange position(g)


 
 158
 
 
 
 
 
 
  
Dividends on stock compensation6
 
 
 
 
 
 
 
 
  
Non-cash financing of capital projects95
 95
 
 
 
 
 
 
 
  
Sale of Upstream assets(c)
37
 37
 
 
 
 
 
 
 
  
Pending FitzPatrick Acquisition(h)
(54) (54) 
 
 
 
 
 
 
  
Fair value of net assets contributed to Generation in connection with the PHI merger, net of cash
 119
 
 
 
 
 
 
 
  
Fair value of net assets distributed to Exelon in connection with the PHI Merger, net of cash (c)(f)

 
 
 
 
 
 
 
 127
  
Fair value of pension obligation transferred in connection with the PHI Merger (c)(f)

 
 
 
 
 
 
 
 53
  
Assumption of member purchase liability
 
 
 
 
 
 
 
 29
  
Assumption of merger commitment liability
 
 
 
 
 33
 
 
 33
  
__________
(a)Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.
(b)Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.
(c)See Note 4 - Mergers, Acquisitions and Dispositions for more information.
(d)Excludes $5 million of forgiveness of Accounts receivable related to merger commitments recorded in connection with the PHI Merger, the balance is included within Provision for uncollectible accounts.
(e)Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through a pre-established performance-based formula rate. See Note 3 — Regulatory Matters for more information.
(f)Immediately following closing of the PHI Merger, the net assets associated with PHI’s unregulated business interests were distributed by PHI to Exelon. Exelon contributed a portion of such net assets to Generation.
(g)See Note 14 — Income Taxes for discussion of the like-kind exchange tax position.
(h)Reflects the transfer of nuclear fuel to Entergy under the cost reimbursement provisions of the FitzPatrick acquisition agreements. See Note 4 - Mergers, Acquisitions and Dispositions for more information.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 22 — Supplemental Financial Information
The following tables provide a reconciliation of cash, restricted cash, and cash equivalents reported within the Registrants' Consolidated Balance Sheets that sum to the total of the same amounts in their Consolidated Statements of Cash Flows.
ExelonComEdPECOBGEPHIPepcoDPLACE
December 31, 2022
Cash and cash equivalents$407 $67 $59 $43 $198 $45 $31 $72 
Restricted cash and cash equivalents566 327 24 175 54 121 — 
Restricted cash included in other long-term assets117 117 — — — — — — 
Total cash, restricted cash, and cash equivalents$1,090 $511 $68 $67 $373 $99 $152 $72 
December 31, 2021
Cash and cash equivalents$672 $131 $36 $51 $136 $34 $28 $29 
Restricted cash and cash equivalents321 210 77 34 43 — 
Restricted cash included in other long-term assets44 43 — — — — — — 
Cash, restricted cash, and cash equivalents included in current assets of discontinued operations582 — — — — — — — 
Total cash, restricted cash, and cash equivalents$1,619 $384 $44 $55 $213 $68 $71 $29 
December 31, 2020
Cash and cash equivalents$432 $83 $19 $144 $111 $30 $15 $17 
Restricted cash and cash equivalents349 279 39 35 — 
Restricted cash included in other long-term assets53 43 — — 10 — — 10 
Cash, restricted cash, and cash equivalents included in current assets of discontinued operations332 — — — — — — — 
Total cash, restricted cash, and cash equivalents$1,166 $405 $26 $145 $160 $65 $15 $30 
December 31, 2019
Cash and cash equivalents$587 $90 $21 $24 $131 $30 $13 $12 
Restricted cash and cash equivalents358 150 36 33 — 
Restricted cash included in other long-term assets177 163 — — 14 — — 14 
Total cash, restricted cash, and cash equivalents(a)
$1,122 $403 $27 $25 $181 $63 $13 $28 
__________
(a)Exelon's amounts include amounts related to Generation prior to the separation. See Note 2 — Discontinued Operations for additional information.
266




 For the year ended December 31, 2015
           Predecessor      
 Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Cash paid (refunded) during the year:                 
Interest (net of amount capitalized)$930
 $348
 $308
 $94
 $120
 $268
 $116
 $47
 $63
Income taxes (net of refunds)342
 476
 (265) 64
 73
 (13) (6) (5) 
Other non-cash operating activities:                 
Pension and non-pension postretirement benefit costs$637
 $269
 $206
 $39
 $65
 $97
 $30
 $15
 $15
Loss from equity method investments7
 8
 
 
 
 
 
 
 
Provision for uncollectible accounts120
 22
 53
 30
 15
 61
 21
 20
 20
Provision for excess and obsolete inventory10
 9
 1
 
 
 1
 
 
 
Stock-based compensation costs97
 
 
 
 
 13
 
 
 
Other decommissioning-related activity(a)
(82) (82) 
 
 
 
 
 
 
Energy-related options(b)
21
 21
 
 
 
 
 
 
 
Amortization of regulatory asset related to debt costs7
 
 5
 2
 
 5
 2
 1
 1
Amortization of rate stabilization deferral73
 
 
 
 73
 (2) 1
 (3) 
Amortization of debt fair value adjustment(17) (17) 
 
 
 
 
 
 
Discrete impacts from EIMA(c)
144
 
 144
 
 
 
 
 
 
Amortization of debt costs58
 15
 4
 2
 2
 2
 
 
 
Lower of cost or market inventory adjustment23
 23
 
 
 
 
 
 
 
Long-term incentive plan24
 
 
 
 
 
 
 
 
Other(13) 
 3
 (3) (18) (10) 
 
 1
Total other non-cash operating activities$1,109

$268

$416

$70

$137

$167
 $54
 $33
 $37
Non-cash investing and financing activities:                 
Change in PPE related to ARO update$885
 $885
 $
 $
 $
 $
 $
 $
 $
Increase (decrease) in capital expenditures not paid

96
 82
 34
 (13) (9) 6
 (1) 3
 3
Nuclear fuel procurement(d)
57
 57
 
 
 
 
 
 
 
Indemnification of like-kind exchange position(e)

 
 7
 
 
 
 
 
 
Dividends on stock compensation6
 
 
 
 
 
 
 
 
Non-cash financing of capital projects77
 77
 
 
 
 
 
 
 
Long-term software licensing agreement(f)
95
 
 
 
 
 
 
 
 
__________
(a)Includes the elimination of NDT fund activity for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income and income taxes related to all NDT fund activity for these units. See Note 15 — Asset Retirement Obligations for additional information regarding the accounting for nuclear decommissioning.
(b)Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.
(c)Reflects the change in distribution rates pursuant to EIMA, which allows for the recovery of costs by a utility through a pre-established performance-based formula rate. See Note 3 — Regulatory Matters for more information.

Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 22 — Supplemental Financial Information
(d)Relates to the nuclear fuel procurement contracts for the purchase of fixed quantities of uranium, which was delivered to Generation in 2015. Generation is required to make payments starting September 30, 2018, with the final payment being due no later than September 30, 2020.
(e)See Note 14 — Income Taxes for discussion of the like-kind exchange tax position.
(f)Relates to a long-term software license agreement entered into on May 30, 2015. Exelon is required to make payments starting August of 2015 through May of 2024. See Note 13 - Debt and Credit Agreements.
Supplemental Balance Sheet Information
The following tables provide additional information about assetsmaterial items recorded in the Registrants' Consolidated Balance Sheets.
Investments
ExelonComEdPECOBGEPHIPepco
December 31, 2022
Equity method investments:
Other equity method investments$16 $$$— $— $— 
Other investments:
Employee benefit trusts and investments(a)
216 — 22 138 119 
Total investments$232 $$30 $$138 $119 
December 31, 2021
Equity method investments:
Other equity method investments$15 $$$— $— $— 
Other investments:
Employee benefit trusts and investments(a)
235 — 27 14 145 120 
Total investments$250 $$34 $14 $145 $120 
__________
(a)The Registrants’ debt and liabilitiesequity security investments are recorded at fair market value.

Accrued expenses
ExelonComEdPECOBGEPHIPepcoDPLACE
December 31, 2022
Compensation-related accruals(a)
$613 $179 $81 $79 $104 $29 $20 $16 
Taxes accrued211 92 10 34 70 52 12 
Interest accrued338 124 47 42 61 32 14 
December 31, 2021
Compensation-related accruals(a)
$596 $155 $77 $78 $113 $35 $20 $17 
Taxes accrued253 94 14 53 96 88 11 
Interest accrued297 116 41 44 52 28 11 
__________
(a)Primarily includes accrued payroll, bonuses and other incentives, vacation, and benefits.

23. Related Party Transactions (All Registrants)
Utility Registrants' expense with Generation
The Utility Registrants incurred expenses from transactions with the Generation affiliate as described in the footnotes to the table below prior to separation on February 1, 2022. Such expenses were primarily recorded as Purchased power from affiliates and an immaterial amount recorded as Operating and maintenance expense from affiliates at the Utility Registrants:
267




Table of the Registrants at December 31, 2017 and 2016.
           Successor      
December 31, 2017Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Investments                 
Equity method investments:                 
Financing trusts(a)
$14
 $
 $6
 $8
 $
 $
 $
 $
 $
Bloom206
 206
 
 
 
 
 
 
 
Net Power76
 76
 
 
 
 
 
 
 
Other equity method investments1
 1
 
 
 
 
 
 
 
Total equity method investments297

283

6

8










Other investments:                 
Employee benefit trusts and investments(b)
244
 51
 
 17
 5
 132
 102
 
 
Other cost method investments62
 62
 
 
 
 
 
 
 
Other available for sale investments37
 37
 
 
 
 
 
 
 
Total investments$640

$433

$6

$25

$5

$132

$102

$

$

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 23 — Related Party Transactions
           Successor      
December 31, 2016Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Investments                 
Equity method investments:                 
Financing trusts(a)
$22
 $
 $6
 $8
 $8
 $
 $
 $
 $
Bloom216
 216
 
 
 
 
 
 
 
Net Power57
 57
 
 
 
 
 
 
 
Other equity method investments16
 15
 
 
 
 
 
 
 
Total equity method investments311

288

6

8

8








Other investments:                 
Employee benefit trusts and investments(b)
232
 44
 
 17
 4
 133
 102
 
 
Other cost method investments52
 52
 
 
 
 
 
 
 
Other available for sale investments34
 34
 
 
 
 
 
 
 
Total investments$629

$418

$6

$25

$12

$133

$102

$

$
 For the Years Ended December 31,
 202220212020
ComEd(a)
$59 $376 $330 
PECO(b)
33 196 190 
BGE(c)
18 236 315 
PHI51 366 367 
Pepco(d)
39 270 279 
DPL(e)
10 79 75 
ACE(f)
17 13 
__________
(a)Includes investments in affiliated financing trusts, which were not consolidated within the financial statements of Exelon and are shown as investments on the Consolidated Balance Sheets. See Note 1 — Significant Accounting Policies for additional information.
(b)The Registrants’ investments in these marketable securities are recorded at fair market value.

(a)ComEd had an ICC-approved RFP contract with Generation to provide a portion of ComEd’s electric supply requirements. ComEd also purchased RECs and ZECs from Generation.
(b)PECO received electric supply from Generation under contracts executed through PECO’s competitive procurement process. In addition, PECO had a ten-year agreement with Generation to sell solar AECs.
(c)BGE received a portion of its energy requirements from Generation under its MDPSC-approved market-based SOS and gas commodity programs.
(d)Pepco received electric supply from Generation under contracts executed through Pepco's competitive procurement process approved by the MDPSC and DCPSC.
(e)DPL received a portion of its energy requirements from Generation under its MDPSC and DEPSC approved market-based SOS commodity programs.
(f)ACE received electric supply from Generation under contracts executed through ACE's competitive procurement process approved by the NJBPU.
Service Company Costs for Corporate Support
The Registrants receive a variety of corporate support services from BSC. Pepco, DPL, and ACE also receive corporate support services from PHISCO. See Note 1 Significant Accounting Policies for additional information regarding BSC and PHISCO.
268




Table of Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 23 — Related Party Transactions
The following table presents the service company costs allocated to the Registrants:
Operating and maintenance from affiliatesCapitalized costs
For the years ended December 31,For the years ended December 31,
202220212020202220212020
Exelon
   BSC$707 $508 $531 
   PHISCO80 72 61 
ComEd
   BSC$316 $304 $283 311 207 186 
PECO
   BSC197 169 150 115 81 76 
BGE
   BSC204 189 170 122 92 132 
PHI
   BSC188 168 152 159 128 149 
   PHISCO— — — 80 72 61 
Pepco
   BSC110 96 85 60 50 55 
   PHISCO112 114 120 33 31 27 
DPL
   BSC71 61 54 45 43 51 
   PHISCO96 99 97 26 22 18 
ACE
   BSC57 53 45 54 33 40 
   PHISCO84 86 87 21 19 16 
Current Receivables from/Payables to affiliates
The following tables provide additional information about liabilities of the Registrants at present current Receivables from affiliates and current Payables to affiliates:
December 31, 2017 and 2016.2022
Receivables from affiliates:
Payables to affiliates:ComEdPECOBGEPepcoDPLACEBSCPHISCOOtherTotal
ComEd$— $— $— $— $— $66 $— $$74 
PECO$— — — — — 39 — 42 
BGE— — — — — 38 — 39 
PHI— — — — — — — 10 14 
Pepco— — — — — 20 13 34 
DPL— — — — 12 — 22 
ACE— — — — 14 26 
Other— — — — — — 
Total$$$— $— $— $$193 $30 $24 $255 
269




           Successor      
December 31, 2017Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Accrued expenses              
Compensation-related accruals(a)
$978
 $407
 $158
 $64
 $58
 $106
 $29
 $17
 $11
Taxes accrued373
 444
 60
 15
 71
 61
 68
 4
 5
Interest accrued328
 78
 102
 33
 34
 48
 23
 8
 12
Severance accrued58
 30
 2
 
 
 17
 
 
 
Other accrued expenses98
 61

5
 2
 1
 29
 17
 6
 5
Total accrued expenses$1,835
 $1,020
 $327
 $114
 $164

$261

$137

$35

$33
                  
           Successor      
December 31, 2016Exelon Generation ComEd PECO BGE PHI Pepco DPL ACE
Accrued expenses              
Compensation-related accruals(a)
$1,199
 $557
 $199
 $67
 $64
 $112
 $30
 $17
 $11
Taxes accrued723
 239
 330
 4
 78
 65
 48
 4
 9
Interest accrued1,234
 82
 609
 30
 31
 49
 21
 8
 12
Severance accrued44
 15
 2
 
 
 19
 
 
 
Other accrued expenses260
 96

110
 3
 2
 27
 14
 7
 6
Total accrued expenses$3,460
 $989
 $1,250
 $104
 $175

$272

$113

$36

$38
__________
(a)Primarily includes accrued payroll, bonuses and other incentives, vacation and benefits.

25. Segment Information (All Registrants)
Operating segments for eachTable of the Registrants are determined based on information used by the chief operating decision maker(s) (CODM) in deciding how to evaluate performance and allocate resources at each of the Registrants.
In the first quarter of 2016, following the consummation of the PHI Merger, three new reportable segments were added: Pepco, DPL and ACE. As a result, Exelon has twelve reportable segments, which include ComEd, PECO, BGE, PHI's three reportable segments consisting of Pepco, DPL, and ACE, and Generation’s six reportable segments consisting of the Mid-Atlantic, Midwest, New England, New York, ERCOT and all other power regions referred to collectively as “Other Power Regions”, which includes activities in the South, West and Canada. ComEd, PECO, BGE, Pepco, DPL and ACE each represent a single reportable segment, and as such, no separate segment information is provided for these Registrants. Exelon, ComEd, PECO, BGE, Pepco, DPL and ACE's CODMs evaluate the performance of and allocate resources to ComEd, PECO, BGE, Pepco, DPL and ACE based on net income and return on equity.
Effective with the consummation of the PHI Merger, PHI's reportable segments have changed based on the information used by the CODM to evaluate performance and allocate resources. PHI's reportable segments consist of Pepco, DPL and ACE. PHI's Predecessor periods' segment information was recast in 2016 to conform to the current Exelon presentation. The reclassification of the segment information did not impact PHI's reported consolidated revenues or net income. PHI's CODM evaluates the

Contents
Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)


Note 23 — Related Party Transactions
performanceDecember 31, 2021
Receivables from affiliates:
Payables to affiliates:ComEdPECOBGEPepcoDPLACEGenerationBSCPHISCOOtherTotal
ComEd$— $— $— $— $— $41 $71 $— $$121 
PECO$— — — — — 30 36 — 70 
BGE— — — — — 41 — 48 
PHI— — — — — — 16 
Pepco— — 20 21 12 59 
DPL— — — — — 17 11 33 
ACE— — — — — 13 31 
Generation13 — — — — — 102 — 16 131 
Other— — — — — 11 — — 14 
Total$16 $$$— $$$117 $306 $32 $47 $523 
Borrowings from Exelon/PHI intercompany money pool
To provide an additional short-term borrowing option that will generally be more favorable to the borrowing participants than the cost of external financing both Exelon and allocates resources toPHI operate an intercompany money pool. PECO, and PHI Corporate participate in the Exelon money pool. Pepco, DPL, and ACE based on net incomeparticipate in the PHI intercompany money pool.
Noncurrent Receivables from affiliates
ComEd and return on equity.
PECO have noncurrent receivables with Constellation for estimated excess funds at the end of decommissioning the Regulatory Agreement Units, such amounts are due back to ComEd and PECO, as applicable, for payment to their respective customers. The basis for Generation's reportable segments is the integrated managementreceivables are recorded in Receivable related to Regulatory Agreement Units as of its electricity business that is locatedDecember 31, 2022 and in different geographic regions, and largely representativenoncurrent Receivables from affiliates as of December 31, 2021. See Note 3 — Regulatory Matters of the footprints of ISO/RTO and/or NERC regions, which utilize multiple supply sources to provide electricity through various distribution channels (wholesale and retail). Generation's hedging strategies and risk metrics are also aligned to these same geographic regions. Descriptions of each of Generation’s six reportable segments are as follows:
Mid-Atlantic represents operations in the eastern half of PJM, which includes New Jersey, Maryland, Virginia, West Virginia, Delaware, the District of Columbia and parts of Pennsylvania and North Carolina.
Midwest represents operations in the western half of PJM, which includes portions of Illinois, Pennsylvania, Indiana, Ohio, Michigan, Kentucky and Tennessee, and the United States footprint of MISO, excluding MISO’s Southern Region, which covers all or most of North Dakota, South Dakota, Nebraska, Minnesota, Iowa, Wisconsin, the remaining parts of Illinois, Indiana, Michigan and Ohio not covered by PJM, and parts of Montana, Missouri and Kentucky.
New England represents the operations within ISO-NE covering the states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont.
New York represents operations within ISO-NY, which covers the state of New York in its entirety.
ERCOT represents operations within Electric Reliability Council of Texas, covering most of the state of Texas.
Other Power Regions:
South represents operations in the FRCC, MISO’s Southern Region, and the remaining portions of the SERC not included within MISO or PJM, which includes all or most of Florida, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Tennessee, North Carolina, South Carolina and parts of Missouri, Kentucky and Texas. Generation’s South region also includes operations in the SPP, covering Kansas, Oklahoma, most of Nebraska and parts of New Mexico, Texas, Louisiana, Missouri, Mississippi and Arkansas.
West represents operations in the WECC, which includes California ISO, and covers the states of California, Oregon, Washington, Arizona, Nevada, Utah, Idaho, Colorado and parts of New Mexico, Wyoming and South Dakota.
Canada represents operations across the entire country of Canada and includes AESO, OIESO and the Canadian portion of MISO.
The CODMs for Exelon and Generation evaluate the performance of Generation’s electric business activities and allocate resources based on revenues net of purchased power and fuel expense (RNF). Generation believes that RNF is a useful measurement of operational performance. RNF is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report. Generation’s operating revenues include all sales to third parties and affiliated sales to the Utility Registrants. Purchased power costs include all costs associated with the procurement and supply of electricity including capacity, energy and ancillary services. Fuel expense includes the fuel costs for Generation’s owned generation and fuel costs associated with tolling agreements. The results of Generation's other business activities are not regularly reviewed by the CODM and are therefore not classified as operating segments or included in

Combined Notes to Consolidated Financial Statements - (Continued)for additional information.
(Dollars in millions, except per share data unless otherwise noted)

the regional reportable segment amounts. These activities include natural gas, as well as other miscellaneous business activities that are not significantLong-term debt to Generation's overall operating revenues or results of operations. Further, Generation’s unrealized mark-to-market gains and losses on economic hedging activities and its amortization of certain intangible assets and liabilities relating to commodity contracts recorded at fair value from mergers and acquisitions are also excluded from the regional reportable segment amounts. Exelon and Generation do not use a measure of total assets in making decisions regarding allocating resources to or assessing the performance of these reportable segments.
An analysis and reconciliation of the Registrants’ reportable segment information to the respective information in the consolidated financial statements for the years ended December 31, 2017, 2016, and 2015 is as follows:
         Successor      

Generation (a)

ComEd
PECO
BGE
PHI (e)
 
Other (b)

Intersegment
Eliminations

Exelon
Operating revenues(c):
               
2017               
Competitive businesses electric revenues$15,300
 $
 $
 $
 $
 $
 $(1,105) $14,195
Competitive businesses natural gas revenues2,575
 
 
 
 
 
 
 2,575
Competitive businesses other revenues591
 
 
 
 
 
 (1) 590
Rate-regulated electric revenues
 5,536
 2,375
 2,489
 4,469
 
 (29) 14,840
Rate-regulated natural gas revenues
 
 495
 687
 161
 
 (10) 1,333
Shared service and other revenues
 
 
 
 49
 1,831
 (1,880) 
2016               
Competitive businesses electric revenues$15,390
 $
 $
 $
 $
 $
 $(1,430) $13,960
Competitive businesses natural gas revenues2,146
 
 
 
 
 
 
 2,146
Competitive businesses other revenues215
 
 
 
 
 
 (4) 211
Rate-regulated electric revenues
 5,254
 2,531
 2,609
 3,506
 
 (31) 13,869
Rate-regulated natural gas revenues
 
 463
 624
 92
 
 (13) 1,166
Shared service and other revenues
 
 
 
 45
 1,648
 (1,686) 7
2015               
Competitive businesses electric revenues$15,944
 $
 $
 $
 $
 $
 $(744) $15,200
Competitive businesses natural gas revenues2,433
 
 
 
 
 
 
 2,433

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Competitive businesses other revenues758
 
 
 
 
 
 (1) 757
Rate-regulated electric revenues
 4,905
 2,486
 2,490
 
 
 (5) 9,876
Rate-regulated natural gas revenues
 
 546
 645
 
 
 (15) 1,176
Shared service and other revenues
 
 
 
 
 1,372
 (1,367) 5
Intersegment revenues(d):
               
2017$1,110
 $15
 $7
 $16
 $50
 $1,824
 $(3,020) $2
20161,428
 15
 8
 21
 45
 1,647
 (3,159) 5
2015745
 4
 2
 14
 
 1,367
 (2,127) 5
Depreciation and amortization:               
2017$1,457
 $850
 $286
 $473
 $675
 $87
 $
 $3,828
20161,879
 775
 270
 423
 515
 74
 
 3,936
20151,054
 707
 260
 366
 
 63
 
 2,450
Operating expenses (c):
               
2017$17,993
 $4,214
 $2,215
 $2,562
 $3,911
 $1,851
 $(3,026) $29,720
201616,856
 4,056
 2,292
 2,683
 3,549
 1,928
 (3,164) 28,200
201516,872
 3,889
 2,404
 2,578
 
 1,444
 (2,131) 25,056
Equity in earnings (losses) of unconsolidated affiliates:               
2017$(33) $
 $
 $
 $
 $1
 $
 $(32)
2016(25) 
 
 
 
 1
 
 (24)
2015(8) 
 
 
 
 1
 
 (7)
Interest expense, net:               
2017$440
 $361
 $126
 $105
 $245
 $283
 $
 $1,560
2016364
 461
 123
 103
 195
 290
 
 1,536
2015365
 332
 114
 99
 
 123
 
 1,033
Income (loss) before income taxes:               
2017$1,429
 $984
 $538
 $525
 $578
 $(296) $(2) $3,756
2016873
 679
 587
 468
 (58) (555) (5) 1,989
20151,850
 706
 521
 477
 
 (219) (5) 3,330
Income taxes:               
2017$(1,375) $417
 $104
 $218
 $217
 $294
 $
 $(125)
2016290
 301
 149
 174
 3
 (156) 
 761
2015502
 280
 143
 189
 
 (41) 
 1,073
Net income (loss):               
2017$2,771
 $567
 $434
 $307
 $362
 $(590) $(2) $3,849
2016558
 378
 438
 294
 (61) (398) (5) 1,204
20151,340
 426
 378
 288
 
 (177) (5) 2,250
Capital expenditures:               
2017$2,259
 $2,250
 $732
 $882
 $1,396
 $65
 $
 $7,584
20163,078
 2,734
 686
 934
 1,008
 113
 
 8,553
20153,841
 2,398
 601
 719
 
 65
 
 7,624

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Total assets:               
2017$48,387
 $29,726
 $10,170
 $9,104
 $21,247
 $8,618
 $(10,552) $116,700
201646,974
 28,335
 10,831
 8,704
 21,025
 10,369
 (11,334) 114,904
__________
(a)Generation includes the six reportable segments shown below: Mid-Atlantic, Midwest, New England, New York, ERCOT and Other Power Regions. For the year ended December 31, 2017, intersegment revenues for Generation include revenue from sales to PECO of $138 million, sales to BGE of $388 million, sales to Pepco of $255 million, sales to DPL of $179 million and sales to ACE of $29 million in the Mid-Atlantic region, and sales to ComEd of $121 million in the Midwest region, which eliminate upon consolidation. For the year ended December 31, 2016, intersegment revenues for Generation include revenue from sales to PECO of $290 million and sales to BGE of $608 million in the Mid-Atlantic region, and sales to ComEd of $47 million in the Midwest region, which eliminate upon consolidation. For the Successor period of March 24, 2016 to December 31, 2016, intersegment revenues for Generation include revenue from sales to Pepco of $295 million, sales to DPL of $154 million and sales to ACE of $37 million in the Mid-Atlantic region, which eliminate upon consolidation. For the year ended December 31, 2015, intersegment revenues for Generation include revenue from sales to PECO of $224 million and sales to BGE of $502 million in the Mid-Atlantic region, and sales to ComEd of $18 million in the Midwest region, which eliminate upon consolidation.
(b)Other primarily includes Exelon’s corporate operations, shared service entities and other financing and investment activities.
(c)Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses on the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 24 — Supplemental Financial Information for total utility taxes for the years ended December 31, 2017, 2016 and 2015.
(d)Intersegment revenues exclude sales to unconsolidated affiliates. The intersegment profit associated with Generation’s sale of certain products and services by and between Exelon’s segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in operating revenues in the Consolidated Statements of Operations and Comprehensive Income.
(e)Amounts included represent activity for PHI's successor period, March 24, 2016 through December 31, 2017. PHI includes the three reportable segments: Pepco, DPL and ACE. See tables below for PHI's predecessor periods, including Pepco, DPL and ACE, for January 1, 2016 to March 23, 2016 and for the year ended December 31, 2015.
Successor and Predecessor PHI:
 Pepco DPL ACE 
Other(b)
 Intersegment
Eliminations
 PHI
Operating revenues(a):
           
December 31, 2017 - Successor           
Rate-regulated electric revenues$2,158
 $1,139
 $1,186
 $
 $(14) $4,469
Rate-regulated natural gas revenues
 161
 
 
 
 161
Shared service and other revenues
 
 
 52
 (3) 49
March 24, 2016 to December 31, 2016 - Successor           
Rate-regulated electric revenues$1,675
 $850
 $989
 $5
 $(13) $3,506
Rate-regulated natural gas revenues
 92
 
 
 
 92
Shared service and other revenues
 
 
 45
 
 45
January 1, 2016 to March 23, 2016 - Predecessor           
Rate-regulated electric revenues$511
 $279
 $268
 $42
 $(4) $1,096
Rate-regulated natural gas revenues
 56
 
 1
 
 57
Shared service and other revenues
 
 
 
 
 
December 31, 2015 - Predecessor           
Rate-regulated electric revenues$2,129
 $1,138
 $1,295
 $210
 $(2) $4,770
Rate-regulated natural gas revenues
 164
 
 1
 
 165
Shared service and other revenues
 
 
 
 
 
Intersegment revenues:           
December 31, 2017 - Successor$6
 $8
 $2
 $53
 $(19) $50
March 24, 2016 to December 31, 2016 - Successor4
 5
 2
 47
 (13) 45

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

January 1, 2016 to March 23, 2016 - Predecessor1
 2
 1
 
 (4) 
December 31, 2015 - Predecessor5
 6
 4
 
 (15) 
Depreciation and amortization:           
December 31, 2017 - Successor$321
 $167
 $146
 $42
 $(1) $675
March 24, 2016 to December 31, 2016 - Successor224
 120
 128
 43
 
 $515
January 1, 2016 to March 23, 2016 - Predecessor71
 37
 37
 11
 (4) $152
December 31, 2015 - Predecessor256
 148
 175
 45
 
 $624
Operating expenses:          

December 31, 2017 - Successor$1,760
 $1,071
 $1,029
 $68
 $(17) $3,911
March 24, 2016 to December 31, 2016 - Successor1,577
 952
 1,000
 33
 (13) $3,549
January 1, 2016 to March 23, 2016 - Predecessor443
 284
 251
 73
 (3) $1,048
December 31, 2015 - Predecessor1,790
 1,137
 1,161
 220
 
 $4,308
Interest expense, net:          

December 31, 2017 - Successor$121
 $51
 $61
 $13
 $(1) $245
March 24, 2016 to December 31, 2016 - Successor98
 38
 47
 12
 
 $195
January 1, 2016 to March 23, 2016 - Predecessor29
 12
 15
 11
 (2) $65
December 31, 2015 - Predecessor124
 50
 64
 43
 (1) $280
Income (loss) before income taxes:          

December 31, 2017 - Successor$310
 $192
 $103
 $377
 $(404) $578
March 24, 2016 to December 31, 2016 - Successor36
 (30) (51) (84) 71
 $(58)
January 1, 2016 to March 23, 2016 - Predecessor47
 43
 5
 59
 (118) $36
December 31, 2015 - Predecessor289
 125
 73
 23
 (29) $481
Income taxes:          

December 31, 2017 - Successor$105
 $71
 $26
 $15
 $
 $217
March 24, 2016 to December 31, 2016 - Successor26
 5
 (5) (23) 
 $3
January 1, 2016 to March 23, 2016 - Predecessor15
 17
 1
 (16) 
 $17
December 31, 2015 - Predecessor102
 49
 33
 (48) 27
 $163
Net income (loss):          

December 31, 2017 - Successor$205
 $121
 $77
 $(91) $50
 $362
March 24, 2016 to December 31, 2016 - Successor10
 (35) (47) (34) 45
 $(61)
January 1, 2016 to March 23, 2016 - Predecessor32
 26
 5
 (44) 
 $19
December 31, 2015 - Predecessor187
 76
 40
 25
 (1) $327
Capital expenditures:          

December 31, 2017 - Successor$628
 $428
 $312
 $28
 $
 $1,396
March 24, 2016 to December 31, 2016 - Successor489
 277
 218
 24
 
 $1,008

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

January 1, 2016 to March 23, 2016 - Predecessor97
 72
 93
 11
 
 273
December 31, 2015 - Predecessor544
 352
 300
 34
 
 1,230
Total assets:           
December 31, 2017 - Successor$7,832
 $4,357
 $3,445
 $10,600
 $(4,987) $21,247
December 31, 2016 - Successor7,335
 4,153
 3,457
 10,804
 (4,724) 21,025
__________
(a)Includes gross utility tax receipts from customers. The offsetting remittance of utility taxes to the governing bodies is recorded in expenses on the Registrants’ Consolidated Statements of Operations and Comprehensive Income. See Note 24 — Supplemental Financial Information for total utility taxes for the years ended December 31, 2017, 2016 and 2015.
(b)Other primarily includes PHI’s corporate operations, shared service entities and other financing and investment activities.  For the predecessor periods presented, Other includes the activity of PHI’s unregulated businesses which were distributed to Exelon and Generation as a result of the PHI Merger. 
Generation total revenues:
 2017 2016 2015
 
Revenues
from
external
customers(a)
 
Intersegment
revenues
 
Total
revenues
 
Revenues
from
external
customers(a)
 
Intersegment
revenues
 
Total
revenues
 
Revenues
from
external
customers(a)
 
Intersegment
revenues
 
Total
revenues
Mid-Atlantic$5,515

$25
 $5,540
 $6,212

$(33)
$6,179
 $5,974

$(74) $5,900
Midwest4,206

(25) 4,181
 4,402

10

4,412
 4,712

(2) 4,710
New England2,010

(8) 2,002
 1,778

(9)
1,769
 2,217

(5) 2,212
New York1,535

(17) 1,518
 1,198

(42)
1,156
 996

(11) 985
ERCOT958

4
 962
 831

6

837
 863

(6) 857
Other Power Regions 1,076

(27) 1,049
 969

(62)
907
 1,182

(80) 1,102
Total Revenues
for Reportable Segments
$15,300

$(48) $15,252
 $15,390

$(130)
$15,260
 $15,944

$(178) $15,766
Other (b)
3,166

48
 3,214
 2,361

130

2,491
 3,191

178
 3,369
Total
Generation Consolidated Operating Revenues
$18,466

$
 $18,466
 $17,751

$

$17,751
 $19,135

$
 $19,135
__________
(a)Includes all wholesale and retail electric sales to third parties and affiliated sales to the Utility Registrants.
(b)Other represents activities not allocated to a region. See text above for a description of included activities. Also includes a $38 million decrease to revenues, a $52 million decrease to revenues, and a $7 million increase to revenues for the amortization of intangible assets related to commodity contracts recorded at fair value for the years ended December 31, 2017, 2016, and 2015, respectively, unrealized mark-to-market losses of $131 million, losses of $500 million, and gains of $203 million for the years ended December 31, 2017, 2016, and 2015, respectively, and elimination of intersegment revenues.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Generation total revenues net of purchased power and fuel expense:
 2017 2016 2015
 
RNF from
external
customers
(a)
 Intersegment
RNF
 
Total
RNF
 
RNF from
external
customers
(a)
 
Intersegment
RNF
 
Total
RNF
 
RNF from
external
customers
(a)
 Intersegment
RNF
 
Total
RNF
Mid-Atlantic$3,105

$109
 $3,214
 $3,282

$35
 $3,317
 $3,556

$15
 $3,571
Midwest2,810

10
 2,820
 2,969

2
 2,971
 2,912

(20) 2,892
New England538

(24) 514
 467

(29) 438
 519

(58) 461
New York975

1
 976
 761

(19) 742
 584

50
 634
ERCOT575

(243) 332
 412

(131) 281
 425

(132) 293
Other Power Regions 476

(171) 305
 483

(147) 336
 440

(190) 250
Total Revenues net of
purchased power and fuel expense for Reportable Segments
$8,479

$(318) $8,161
 $8,374

$(289) $8,085
 $8,436

$(335) $8,101
Other (b)
297

318
 615
 547

289
 836
 678

335
 1,013
Total Generation
Revenues net of purchased power and fuel expense
$8,776

$
 $8,776
 $8,921

$
 $8,921
 $9,114

$
 $9,114
__________ 
(a)Includes purchases and sales from third parties and affiliated sales to the Utility Registrants.
(b)Other represents activities not allocated to a region. See text above for a description of included activities. Includes a $54 million decrease in RNF, a $57 million decrease in RNF, and a $8 million increase in RNF for the amortization of intangible assets and liabilities related to commodity contracts for the years ended December 31, 2017, 2016, and 2015, respectively, unrealized mark-to-market losses of $175 million, losses of $41 million, and gains of $257 million for the years ended December 31, 2017, 2016, and 2015, respectively, accelerated nuclear fuel amortization associated with the announced early retirement decision for Clinton and Quad Cities as discussed in Note 8 - Early Nuclear Plant Retirements of $12 million and $60 million for the year ended December 31, 2017 and 2016, and the elimination of intersegment revenues net of purchased power and fuel expense.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

26. Related Party Transactions (All Registrants)
Exelon
The financial statements of Exelon include related party transactions as presented in the tables below:
 
For the Years Ended
December 31,
 2017 2016 2015
Operating revenues from affiliates:     
PECO (a)
$1

$1

$1
BGE (a)
4

4

4
Other2
 5
 4
Total operating revenues from affiliates$7
 $10
 $9
Interest expense to affiliates, net:     
ComEd Financing III$14
 $13
 $13
PECO Trust III6
 6
 6
PECO Trust IV6
 6
 6
BGE Capital Trust II10
 16
 16
Total interest expense to affiliates, net$36
 $41
 $41
Earnings (losses) in equity method investments:     
Qualifying facilities and domestic power projects$(33) $(25) $(8)
Other1
 1
 1
Total losses in equity method investments$(32) $(24) $(7)
 December 31,
 2017 2016
Payables to affiliates (current):   
ComEd Financing III$4
 $4
PECO Trust III1
 1
BGE Capital Trust II
 3
Total payables to affiliates (current)$5
 $8
Long-term debt due to financing trusts:   
ComEd Financing III$205
 $205
PECO Trust III81
 81
PECO Trust IV103
 103
BGE Capital Trust II
 252
Total long-term debt due to financing trusts$389
 $641
__________
(a)The intersegment profit associated with the sale of certain products and services by and between Exelon’s segments is not eliminated in consolidation due to the recognition of intersegment profit in accordance with regulatory accounting guidance. For Exelon, these amounts are included in operating revenues in the Consolidated Statements of Operations. See Note 3—Regulatory Matters for additional information.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Transactions involving Generation, ComEd, PECO, BGE, PHI, Pepco, DPL and ACE are further described in the tables below.
Generation
The financial statements of Generation include related party transactions as presented in the tables below:
 
For the Years Ended
December 31,
 2017 2016 2015
Operating revenues from affiliates:     
ComEd (a)
$121

$47

$18
PECO (b)
138

290

224
BGE (c)
388

608

502
Pepco (d)
255
 295
 
DPL (e)
179
 154
 
ACE (f)
29
 37
 
BSC1

2

1
Other4
 6
 4
Total operating revenues from affiliates$1,115
 $1,439
 $749
Purchased power and fuel from affiliates:     
ComEd$13
 $
 $
BGE9
 12
 14
Other(3) 
 
Total purchased power and fuel from affiliates$19
 $12
 $14
Operating and maintenance from affiliates:     
ComEd (g)
$7
 $7
 $4
PECO (g)
1
 3
 2
BGE (g)
1
 1
 
Pepco
 1
 
PHISCO1
 1
 
BSC (h)
689
 650
 614
Other$(2) $
 $
Total operating and maintenance from affiliates$697
 $663
 $620
Interest expense to affiliates, net:     
Exelon Corporate (i)
$37
 $39
 $43
PCI1
 
 
PECO1
 
 
Total interest expense to affiliates, net:39
 39
 43
Earnings (losses) in equity method investments     
Qualifying facilities and domestic power projects$(33) $(25) $(8)
Capitalized costs     
BSC (h)
$98
 $98
 $76
Cash distribution paid to member$659
 $922
 $2,474
Contribution from member$102
 $142
 $47

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 December 31,
 2017 2016
Receivables from affiliates (current):   
ComEd (a)
$28
 $14
PECO (b)
26
 33
BGE (c)
24
 26
Pepco (d)
36
 44
DPL (e)
12
 16
ACE (f)
6
 9
PHISCO (h)
1
 5
PCI
 8
Other7
 1
Total receivables from affiliates (current)$140
 $156
Intercompany money pool (current):   
PCI$54
 $55
Payables to affiliates (current):   
Exelon Corporate (i)
$21
 $22
BSC (h)
74
 99
ComEd12
 9
PECO (b)
4
 
Other12
 7
Total payables to affiliates (current)$123
 $137
Long-term debt due to affiliates (noncurrent):   
Exelon Corporate (k)
$910
 $922
Payables to affiliates (noncurrent):   
BSC (h)
$
 $1
ComEd (j)
2,528
 2,169
PECO (j)
537
 438
Total payables to affiliates (noncurrent)$3,065
 $2,608

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

__________
(a)Generation has an ICC-approved RFP contract with ComEd to provide a portion of ComEd’s electricity supply requirements. Generation also sells RECs to ComEd. In addition, Generation had revenue from ComEd associated with the settled portion of the financial swap contract established as part of the Illinois Settlement. See Note 3—Regulatory Matters for additional information.
(b)Generation provides electric supply to PECO under contracts executed through PECO’s competitive procurement process. In addition, Generation has a ten-year agreement with PECO to sell solar AECs. See Note 3—Regulatory Matters for additional information.
(c)Generation provides a portion of BGE’s energy requirements under its MDPSC-approved market-based SOS and gas commodity programs. See Note 3—Regulatory Matters for additional information.
(d)Generation provides electric supply to Pepco under contracts executed through Pepco's competitive procurement process approved by the MDPSC and DCPSC. See Note 3—Regulatory Matters for additional information.
(e)Generation provides a portion of DPL's energy requirements under its MDPSC and DPSC approved market based SOS and gas commodity programs. See Note 3—Regulatory Matters for additional information.
(f)Generation provides electric supply to ACE under contracts executed through ACE's competitive procurement process. See Note 3—Regulatory Matters for additional information.
(g)Generation requires electricity for its own use at its generating stations. Generation purchases electricity and distribution and transmission services from PECO and BGE and only distribution and transmission services from ComEd for the delivery of electricity to its generating stations.
(h)Generation receives a variety of corporate support services from BSC and PHISCO, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead. A portion of such services is capitalized.
(i)The balance consists of interest owed to Exelon Corporation related to the senior unsecured notes, as well as, expense related to certain invoices Exelon Corporation processed on behalf of Generation.
(j)Generation has long-term payables to ComEd and PECO as a result of the nuclear decommissioning contractual construct whereby, to the extent NDT funds are greater than the underlying ARO at the end of decommissioning, such amounts are due back to ComEd and PECO, as applicable, for payment to their respective customers. See Note 15—Asset Retirement Obligations.
(k)In connection with the debt obligations assumed by Exelon as part of the Constellation merger, Exelon and subsidiaries of Generation (former Constellation subsidiaries) assumed intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes payable included in Long-term Debt to affiliate on Generation’s Consolidated Balance Sheets and intercompany notes receivable at Exelon Corporate, which are eliminated in consolidation on Exelon’s Consolidated Balance Sheets.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

ComEd
The financial statements of ComEd include related party transactions as presented in the tables below:
 
For the Years Ended
December 31,
 2017 2016 2015
Operating revenues from affiliates     
Generation$9

$7

$4
BSC 
6
 6
 
PECO
 1
 
BGE
 1
 
Total operating revenues from affiliates$15
 $15
 $4
Purchased power from affiliate     
Generation (a)
$108
 $47
 $18
Operating and maintenance from affiliates     
BSC (b)
$270
 $225
 $195
PECO
 1
 
BGE
 1
 
Total operating and maintenance from affiliates$270
 $227
 $195
Interest expense to affiliates, net:     
ComEd Financing III$13
 $13
 $13
Capitalized costs     
BSC (b)
$118
 $112
 $103
Cash dividends paid to parent$422
 $369
 $299
Contribution from parent$651
 $315
 $202

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 December 31,
 2017 2016
Prepaid voluntary employee beneficiary association trust (c)
$2
 $5
Receivable from affiliates (current):   
Voluntary employee beneficiary association trust$1
 $2
Generation12
 9
Exelon Corporate (d)

 345
Total receivable from affiliates (current)$13
 $356
Receivable from affiliates (noncurrent):   
Generation (e)
$2,528
 $2,169
Other
 1
Total receivable from affiliates (noncurrent)$2,528
 $2,170
Payables to affiliates (current):   
Generation (a)
$28
 $14
BSC (b)
39
 42
ComEd Financing III4
 4
PECO
 2
Exelon Corporate3
 3
Total payables to affiliates (current)$74
 $65
Long-term debt to ComEd financing trust   
ComEd Financing III$205
 $205
__________
(a)ComEd procures a portion of its electricity supply requirements from Generation under an ICC-approved RFP contract. ComEd also purchases RECs from Generation. In addition, purchased power expense includes the settled portion of the financial swap contract with Generation, which expired in 2013. See Note 3—Regulatory Matters and Note 12—Derivative Financial Instruments for additional information.
(b)ComEd receives a variety of corporate support services from BSC, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead. A portion of such services is capitalized.
(c)The voluntary employee benefit association trusts covering active employees are included in corporate operations and are funded by the Registrants. A prepayment to the active welfare plans has accumulated due to actuarially determined contribution rates, which are the basis for ComEd’s contributions to the plans, being higher than actual claim expense incurred by the plans over time. The prepayment is included in other current assets.
(d)Represents indemnification from Exelon Corporate related to the like-kind exchange.
(e)ComEd has a long-term receivable from Generation as a result of the nuclear decommissioning contractual construct for generating facilities previously owned by ComEd. To the extent the assets associated with decommissioning are greater than the applicable ARO at the end of decommissioning, such amounts are due back to ComEd for payment to ComEd’s customers.


Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PECO
The financial statements of PECO include related party transactions as presented in the tables below:
 
For the Years Ended
December 31,
 2017 2016 2015
Operating revenues from affiliates:     
Generation (a)
$1

$3

$2
BSC5
 3
 
ComEd
 1
 
BGE1
 1
 
Total operating revenues from affiliates$7
 $8
 $2
Purchased power from affiliate     
Generation (b)
$135
 $287
 $220
Operating and maintenance from affiliates:     
BSC (c)
$146
 $142
 $107
Generation2
 2
 3
ComEd


 1
 
BGE1
 1
 
Total operating and maintenance from affiliates$149
 $146
 $110
Interest expense to affiliates, net:     
PECO Trust III$6
 $6
 $6
PECO Trust IV6
 6
 6
Generation(1) 
 
Total interest expense to affiliates, net:$11
 $12
 $12
Capitalized costs     
BSC (c)
$59
 $57
 $40
Cash dividends paid to parent$288
 $277
 $279
Contribution from parent$16
 $18
 $16

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

 December 31,
 2017 2016
Prepaid voluntary employee beneficiary association trust (d)
$
 $1
Receivable from affiliate (current):   
ComEd$
 $2
BGE
 2
Total receivable from affiliates (current)$
 $4
Receivable from affiliate (noncurrent):   
Generation (e)
$537
 $438
Payables to affiliates (current):   
Generation (b)
$22
 $33
BSC (c)
29
 28
Exelon Corporate1
 1
PECO Trust III1
 1
Total payables to affiliates (current)$53
 $63
Long-term debt to financing trusts:   
PECO Trust III$81
 $81
PECO Trust IV103
 103
Total long-term debt to financing trusts$184
 $184
__________
(a)PECO provides energy to Generation for Generation’s own use.
(b)PECO purchases electric supply from Generation under contracts executed through its competitive procurement process. In addition, PECO has five-year and ten-year agreements with Generation to purchase non-solar and solar AECs, respectively. See Note 3—Regulatory Matters for additional information on AECs.
(c)PECO receives a variety of corporate support services from BSC, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead. A portion of such services is capitalized.
(d)The voluntary employee beneficiary association trusts covering active employees are included in corporate operations and are funded by the Registrants. A prepayment to the active welfare plans has accumulated due to actuarially determined contribution rates, which are the basis for PECO’s contributions to the plans, being higher than actual claim expense incurred by the plans over time.
(e)PECO has a long-term receivable from Generation as a result of the nuclear decommissioning contractual construct, whereby, to the extent the assets associated with decommissioning are greater than the applicable ARO at the end of decommissioning, such amounts are due back to PECO for payment to PECO’s customers.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

BGE
The financial statements of BGE include related party transactions as presented in the tables below:
 
For the Years Ended
December 31,
 2017 2016 2015
Operating revenues from affiliates:     
Generation (a)
$10

$13

$14
BSC 
5
 6
 
ComEd
 1
 
PECO1
 1
 
Total operating revenues from affiliates$16
 $21
 $14
Purchased power from affiliate     
Generation (b)
$384
 $604
 $498
Operating and maintenance from affiliates:     
BSC (c)
$152
 $130
 $118
ComEd
 1
 
PECO1
 1
 
Total operating and maintenance from affiliates$153
 $132
 $118
Interest expense to affiliates, net:     
BGE Capital Trust II$10
 $16
 $16
Capitalized costs     
BSC (c)
$54
 $36
 $28
Cash dividends paid to parent$198
 $179
 $158
Contribution from parent$184
 $61
 $7
 December 31,
 2017 2016
Receivable from affiliates (current):   
Other$1
 $
Payables to affiliates (current):   
Generation (b)
$24
 $26
BSC (c)
25
 22
Exelon Corporate1
 1
PECO
 2
BGE Capital Trust II
 3
Other2
 1
Total payables to affiliates (current)$52
 $55
Long-term debt to BGE financing trust   
BGE Capital Trust II$
 $252
__________
(a)
BGE provides energy to Generation for Generation’s own use.
(b)BGE procures a portion of its electricity and gas supply requirements from Generation under its MDPSC-approved market-based SOS and gas commodity programs. See Note 3—Regulatory Matters for additional information.
(c)BGE receives a variety of corporate support services from BSC, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead. A portion of such services is capitalized.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

PHI
The financial statements of PHI include related party transactions as presented in the tables below:
 Successor
 For the Year Ended December 31, March 24, 2016 to December 31,
 2017 2016
Operating revenues from affiliates:   
BSC$48
 $44
PHISCO2
 
Generation
 1
Total operating revenues from affiliates$50
 $45
Purchased power from affiliate   
Generation$463
 $486
Operating and maintenance from affiliates:   
BSC(a)
$145
 $86
Other5
 3
Total operating and maintenance from affiliates$150
 $89
Cash dividends paid to parent$311
 $273
Contribution from member$758
 $1,251
 Successor
 December 31,
 2017 2016
Payables to affiliates (current):   
Generation$54
 $74
BGE1
 
BSC(a)
24
 10
Exelon Corporate6
 6
Other5
 4
Total payables to affiliates (current)$90
 $94
__________
(a)PHI receives a variety of corporate support services from BSC and PHISCO, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead. A portion of such services is capitalized.


Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Pepco
The financial statements of Pepco include related party transactions as presented in the tables below:
 
For the Years Ended
December 31,
 2017 2016 2015
Operating revenues from affiliates:     
Generation (a)
$
 $1
 $
PHISCO6
 4
 5
Total operating revenues from affiliates$6
 $5
 $5
Purchased power from affiliate     
Generation (b)
$255
 $295
 $
Operating and maintenance:     
PHISCO (c)
$219
 $263
 $240
PES (d)
29
 39
 26
Total operating and maintenance$248
 $302
 $266
Operating and maintenance from affiliates:     
BSC (c)
$53
 $31
 $
PHISCO (c)
5
 4
 4
Total operating and maintenance from affiliates$58
 $35
 $4
Cash dividends paid to parent$133
 $136
 $146
Contribution from parent$161
 $187
 $112
 December 31,
 2017 2016
Payables to affiliates (current):   
Generation (b)
$36
 $44
BSC (c)
11
 4
DPL
 1
PHISCO (c)
27
 25
Total payables to affiliates (current)$74
 $74
__________
(a)
Pepco provides energy to Generation for Generation’s own use.
(b)Pepco procures a portion of its electricity and gas supply requirements from Generation under its MDPSC and DPSC approved market based SOS and gas commodity programs. See Note 3—Regulatory Matters for additional information.
(c)Pepco receives a variety of corporate support services from BSC and PHISCO, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead. A portion of such services is capitalized.
(d)PES performs underground transmission, distribution construction and maintenance services, including services that are treated as capital costs, for Pepco.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

DPL
The financial statements of DPL include related party transactions as presented in the tables below:
 
For the Years Ended
December 31,
 2017 2016 2015
Operating revenues from affiliates:     
PHISCO$6
 $5
 $5
Other2
 2
 1
Total operating revenues from affiliates$8
 $7
 $6
Purchased power from affiliate     
Generation (a)
$179
 $154
 $
Operating and maintenance:     
PHISCO (b)
$165
 $194
 $179
PES (c)
9
 8
 3
Total operating and maintenance$174
 $202
 $182
Operating and maintenance from affiliates:     
BSC (b)
$31
 $18
 $
Other1
 1
 1
Total operating and maintenance from affiliates$32
 $19
 $1
Cash dividends paid to parent$112
 $54
 $92
Contribution from parent$
 $152
 $75
 December 31,
 2017 2016
Receivables from affiliates (current):   
Pepco$
 $1
ACE
 2
Total receivable from affiliates (current)$
 $3
Payables to affiliates (current):   
Generation (a)
$12
 $16
BSC (b)
7
 3
PHISCO (b)
27
 19
Total payables to affiliates (current)$46
 $38
__________
(a)DPL procures a portion of its electricity and gas supply requirements from Generation under its MDPSC and DPSC approved market based SOS and gas commodity programs. See Note 3—Regulatory Matters for additional information.
(b)DPL receives a variety of corporate support services from BSC and PHISCO, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead. A portion of such services is capitalized.
(c)PES performs underground transmission construction services, including services that are treated as capital costs, for DPL.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

ACE
The financial statements of ACE include related party transactions as presented in the tables below:
 
For the Years Ended
December 31,
 2017 2016 2015
Operating revenues from affiliates:     
PHISCO$1
 $2
 $2
Other1
 1
 2
Total operating revenues from affiliates$2
 $3
 $4
Purchased power from affiliate     
Generation (a)
$29
 $37
 $
Operating and maintenance:     
PHISCO (b)
$135
 $155
 $143
Operating and maintenance from affiliates:     
BSC (b)
$25
 $15
 $
Other3
 3
 3
Total operating and maintenance from affiliates$28
 $18
 $3
Cash dividends paid to parent$68
 $63
 $12
Contribution from parent$
 $139
 $95
 December 31,
 2017 2016
Payables to affiliates (current):   
Generation (a)
$6
 $9
BSC (b)
5
 2
DPL
 2
PHISCO (b)
18
 16
Total payables to affiliates (current)$29

$29
__________
(a)ACE purchases electric supply from Generation under contracts executed through its competitive procurement process. See Note 3—Regulatory Matters for additional information.
(b)ACE receives a variety of corporate support services from BSC and PHISCO, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead. A portion of such services is capitalized.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

27. Quarterly Data (Unaudited) (All Registrants)
Exelon
The data shown below, which may not equal the total for the year due to the effects of rounding and dilution, includes all adjustments that Exelon considers necessary for a fair presentation of such amounts:
 Operating Revenues Operating Income Net Income
Attributable to
Common Shareholders
 2017 2016 2017 2016 2017 2016
Quarter ended:           
March 31$8,757
 $7,573
 $1,296
 $483
 $995
 $173
June 307,623
 6,910
 232
 647
 80
 267
September 308,769
 9,002
 1,475
 1,267
 824
 490
December 318,381
 7,875
 1,258
 714
 1,871
 204
 Average Basic Shares
Outstanding
(in millions)
 Net Income
per Basic Share
 2017 2016 2017 2016
Quarter ended:       
March 31928
 923
 $1.07
 $0.19
June 30934
 924
 0.09
 0.29
September 30962
 925
 0.86
 0.53
December 31964
 925
 1.94
 0.22
 
Average Diluted Shares
Outstanding
(in millions)
 Net Income
per Diluted Share
 2017 2016 2017 2016
Quarter ended:       
March 31930
 925
 $1.07
 $0.19
June 30936
 926
 0.09
 0.29
September 30965
 927
 0.85
 0.53
December 31967
 928
 1.93
 0.22
The following table presents the New York Stock Exchange—Composite Common Stock Prices and dividends by quarter on a per share basis:Long-term debt to financing trusts:
As of December 31,
20222021
ExelonComEdPECOExelonComEdPECO
ComEd Financing III$206 $205 $— $206 $205 $— 
PECO Trust III81 — 81 81 — 81 
PECO Trust IV103 — 103 103 — 103 
Total$390 $205 $184 $390 $205 $184 
 2017 2016
 
Fourth
Quarter
 
Third
Quarter
 
Second
Quarter
 
First
Quarter
 
Fourth
Quarter
 
Third
Quarter
 
Second
Quarter
 
First
Quarter
High price$42.67
 $38.78
 $37.44
 $37.19
 $36.36
 $37.70
 $36.37
 $35.95
Low price37.55
 35.37
 33.30
 34.47
 29.82
 32.86
 33.18
 26.26
Close39.41
 37.67
 36.07
 35.98
 35.49
 33.29
 36.36
 35.86
Dividends0.328
 0.328
 0.328
 0.328
 0.318
 0.318
 0.318
 0.310
Charitable Contributions

Combined NotesIn December 2022, Exelon Corporation made an unconditional promise to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Generation
The data shown below includes all adjustments that Generation considers necessary for a fair presentation of such amounts:
 Operating Revenues Operating (Loss) Income Net (Loss) Income
Attributable to
Membership Interest
 2017 2016 2017 2016 2017 2016
Quarter ended:           
March 31$4,888
 $4,739
 $387
 $415
 $423
 $310
June 304,174
 3,589
 (467) (13) (250) (8)
September 304,751
 5,035
 500
 342
 305
 236
December 314,654
 4,388
 501
 94
 2,215
 (41)
ComEd
The data shown below includes all adjustments that ComEd considers necessary for a fair presentation of such amounts:
 Operating Revenues Operating Income Net Income
 2017 2016 2017 2016 2017 2016
Quarter ended:           
March 31$1,298
 $1,249
 $314
 $274
 $141
 $115
June 301,357
 1,286
 319
 324
 118
 145
September 301,571
 1,497
 404
 389
 189
 37
December 311,309
 1,223
 286
 217
 120
 80
PECO
The data shown below includes all adjustments that PECO considers necessary for a fair presentation of such amounts:
 Operating Revenues Operating Income 
Net Income
Attributable to
Common Shareholders
 2017 2016 2017 2016 2017 2016
Quarter ended:           
March 31$796
 $841
 $192
 $196
 $127
 $124
June 30630
 664
 137
 152
 88
 100
September 30715
 788
 169
 204
 112
 122
December 31729
 701
 157
 150
 107
 92

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

BGE
The data shown below includes all adjustments that BGE considers necessary for a fair presentation of such amounts:
 Operating Revenues Operating Income 
Net Income
Attributable to
Common Shareholders
 2017 2016 2017 2016 2017 2016
Quarter ended:           
March 31$951
 $929
 $228
 $187
 $125
 $98
June 30674
 680
 98
 59
 45
 31
September 30738
 812
 124
 115
 62
 54
December 31813
 812
 163
 190
 76
 103
PHI
The data shown below includes all adjustments that PHI considers necessary for a fair presentation of such amounts:
 Successor 
 Operating Revenues Operating Income (Loss) 
Net Income (Loss)
Attributable to
Membership Interest
 
 2017 2016 2017 2016 2017 2016 
Quarter ended:            
March 31$1,175
 $105
(a) 
$180
 $(411)
(a) 
$140
 $(309)
(a) 
June 301,074
 1,066
 148
 136
 66
 52
 
September 301,310
 1,394
 285
 279
 153
 166
 
December 311,121
 1,078
 159
 90
 4
 30
 
 Predecessor
 Operating Revenues Operating Income 
Net Income
Attributable to
Membership Interest
      
January 1, 2016 - March 23, 20161,153
 105
 19
__________
(a)Amounts for March 31, 2016 reflect the PHI Successor activity for the period March 24, 2016 to March 31, 2016.

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

Pepco
The data shown below includes all adjustments that Pepco considers necessary for a fair presentation of such amounts:
 Operating Revenues Operating Income (Loss) 
Net Income (Loss)
Attributable to
Common Shareholders
 2017 2016 2017 2016 2017 2016
Quarter ended:           
March 31$530
 $551
 $79
 $(105) $58
 $(108)
June 30514
 509
 84
 97
 43
 49
September 30604
 635
 149
 132
 87
 79
December 31510
 491
 87
 51
 17
 23
DPL
The data shown below includes all adjustments that DPL considers necessary for a fair presentation of such amounts:
 Operating Revenues Operating Income (Loss) Net Income (Loss)
Attributable to
Common Shareholders
 2017 2016 2017 2016 2017 2016
Quarter ended:           
March 31$362
 $362
 $78
 $(72) $57
 $(72)
June 30282
 281
 41
 30
 19
 12
September 30327
 331
 59
 72
 31
 44
December 31330
 303
 52
 20
 14
 7
ACE
The data shown below includes all adjustments that ACE considers necessary for a fair presentation of such amounts:
 Operating Revenues Operating Income (Loss) Net Income (Loss)
Attributable to
Common Shareholders
 2017 2016 2017 2016 2017 2016
Quarter ended:           
March 31$275
 $291
 $25
 $(121) $28
 $(100)
June 30270
 270
 25
 19
 8
 3
September 30370
 421
 79
 83
 41
 47
December 31271
 275
 28
 26
 
 8
28. Subsequent Events (Exelon, Generation and ComEd)
Illinois ZEC Procurement
On January 25, 2018, the ICC announced that Generation’s Clinton Unit 1, Quad Cities Unit 1 and Quad Cities Unit 2 nuclear plants were selected as the winning bidders through the IPA's ZEC procurement event. Generation executed the ZEC procurement contracts with Illinois utilities, including

Combined Notes to Consolidated Financial Statements - (Continued)
(Dollars in millions, except per share data unless otherwise noted)

ComEd, effective January 26, 2018 and will begin recognizing revenue. Winning bidders will be entitled to compensation for the sale of ZECs retroactivegive $20 million to the June 1, 2017 effective dateExelon Foundation. The contribution was recorded in Operating and maintenance expense within the Consolidated Statements of FEJA. In the first quarter of 2018, Generation will recognize approximately $150 million of revenueOperations and ComEd will record an obligation to Generation and corresponding reduction to its regulatory liability of approximately $100 million related to ZECs generated from June 1, 2017 through December 31, 2017.
Early Retirement of Oyster Creek Generating Station
On February 2, 2018, Exelon announced that Generation will permanently cease generation operations at Oyster Creek at the end of its current operating cycle in October 2018. In 2010, Generation announced that Oyster Creek would retire by the end of 2019 as part of an agreementComprehensive Income with the Stateoffset in Accrued expenses and Other Deferred credits and other liabilities on the Consolidated Balance Sheets.

270




Table of New Jersey to avoid significant costs associated with the construction of cooling towers to meet the State’s then new environmental regulations. Since then, like other nuclear sites, Oyster Creek has continued to face rising operating costs amid a historically low wholesale power price environment. The decision to retire Oyster Creek in 2018 at the end of its current operating cycle involved consideration of several factors, including economic and operating efficiencies, and avoids a refueling outage scheduled for the fall of 2018 that would have required advanced purchasing of fuel fabrication and materials beginning in late February 2018.Contents
Because of the decision to retire Oyster Creek in 2018, Exelon and Generation will recognize certain one-time charges in the first quarter of 2018 ranging from an estimated $25 million to $35 million (pre-tax) related to a materials and supplies inventory reserve adjustment, employee-related costs, and construction work-in-progress impairment, among other items. Estimated cash expenditures related to the one-time charges primarily for employee-related costs are expected to range from $5 million to $10 million.
In addition to these one-time charges, there will be financial impacts stemming from shortening the expected economic useful life of Oyster Creek primarily related to accelerated depreciation of plant assets (including any ARC), accelerated amortization of nuclear fuel, and additional ARO accretion expense associated with the changes in decommissioning timing and cost assumptions to reflect an earlier retirement date. The following table summarizes the estimated amount of expected incremental non-cash expense items expected to be incurred in 2018 because of the early retirement decision.

Projected(b)
Income statement expense (pre-tax)2018
Depreciation and Amortization
Accelerated depreciation(a)
$110 to $140
Accelerated nuclear fuel amortization$40
Operating and Maintenance
Increased ARO accretionUp to $5
__________
(a)Includes the accelerated depreciation of plant assets including any ARC.
(b)Actual results may differ based on incremental future capital additions, actual units of production for nuclear fuel amortization, future revised ARO assumptions, etc.

ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
All Registrants
None.
ITEM 9A.CONTROLS AND PROCEDURES
All Registrants—Disclosure Controls and Procedures
During the fourth quarter of 2017,2022, each registrant’sof the Registrant's management, including its principal executive officer and principal financial officer, evaluated the effectiveness of that registrant’s disclosure controls and procedures related to the recording, processing, summarizing, and reporting of information in that registrant’sRegistrant’s periodic reports that it files with the SEC. These disclosure controls and procedures have been designed by each registrantthe Registrants to ensure that (a) material information relating to that registrant,Registrant, including its consolidated subsidiaries, that is required to be included in filings under the Securities Exchange Act of 1934, is accumulated and made known to that registrant’sRegistrant’s management, including its principal executive officer and principal financial officer, by other employees of that registrantRegistrant and its subsidiaries as appropriate to allow timely decisions regarding required disclosure, and (b) this information is recorded, processed, summarized, evaluated, and reported, as applicable, within the time periods specified in the SEC’s rules and forms. Due to the inherent limitations of control systems, not all misstatements may be detected. These inherent limitations include the realities that judgments in decision-making can be faulty and that breakdowns can occur because of simple error or mistake. Additionally, controls could be circumvented by the individual acts of some persons or by collusion of two or more people.
Accordingly, as of December 31, 2017,2022, the principal executive officer and principal financial officer of each registrantof the Registrants concluded that such registrant’sRegistrant’s disclosure controls and procedures were effective to accomplish theirits objectives.
All Registrants—Changes in Internal Control Over Financial Reporting
Each registrantRegistrant continually strives to improve its disclosure controls and procedures to enhance the quality of its financial reporting and to maintain dynamic systems that change as conditions warrant. However, there have been no changes in internal control over financial reporting that occurred during the fourth quarter of 20172022 that have materially affected, or are reasonably likely to materially affect, any of the registrant'sRegistrant's internal control over financial reporting. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - Executive Overview for additional information on COVID-19.
All Registrants—Internal Control Over Financial Reporting
Management is required to assess and report on the effectiveness of its internal control over financial reporting as of December 31, 2017.2022. As a result of that assessment, management determined that there were no material weaknesses as of December 31, 20172022 and, therefore, concluded that each registrant’sRegistrant’s internal control over financial reporting was effective. Management’s Report on Internal Control Over Financial Reporting is included in ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.


ITEM 9B.OTHER INFORMATION
All Registrants
None.


ITEM 9C.DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS
Not Applicable
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PART III
Exelon Generation Company, LLC, PECO Energy Company, Baltimore Gas and Electric Company, Pepco Holdings LLC, Potomac Electric Power Company, Delmarva Power & Light Company, and Atlantic City Electric Company meet the conditions set forth in General Instruction I(1)(a) and (b) of Form 10-K for a reduced disclosure format. Accordingly, all items in this section relating to Generation, PECO, BGE, PHI, Pepco, DPL, and ACE are not presented.

ITEM 10.DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE GOVERNANCE
Executive Officers
The information required by ITEM 10 relating to executive officers is set forth above in ITEM 1. BUSINESS—Executive Officersofficers of the Registrants at February 9, 2018.
14, 2023.
Directors, Director Nomination Process and Audit Committee
The information required under ITEM 10 concerning directors and nominees for election as directors at the annual meeting of shareholders (Item 401 of Regulation S-K), the director nomination process (Item 407(c)(3)), the audit committee (Item 407(d)(4) and (d)(5)), and the beneficial reporting compliance (Sec. 16(a)) is incorporated herein by reference to information to be contained in Exelon’s definitive 20182023 proxy statement (2018(2023 Exelon Proxy Statement) and the ComEd information statement (2018(2023 ComEd Information Statement) to be filed with the SEC on or before April 29, 201830, 2023 pursuant to Regulation 14A or 14C, as applicable, under the Securities Exchange Act of 1934.
Code of Ethics
Exelon’s Code of Business Conduct is the code of ethics that applies to Exelon’s and ComEd’s Chief Executive Officer, Chief Financial Officer, Corporate Controller, and other finance organization employees. The Code of Business Conduct is filed as Exhibit 14 to this report and is available on Exelon’s website at www.exeloncorp.com.www.exeloncorp.com. The Code of Business Conduct will be made available, without charge, in print to any shareholder who requests such document from Carter C. Culver, Senior Vice President and Deputy General Counsel, Exelon Corporation, P.O. Box 805398, Chicago, Illinois 60680-5398.
If any substantive amendments to the Code of Business Conduct are made or any waivers are granted, including any implicit waiver, from a provision of the Code of Business Conduct, to its Chief Executive Officer, Chief Financial Officer or Corporate Controller, Exelon will disclose the nature of such amendment or waiver on Exelon’s website, www.exeloncorp.com,, or in a report on Form 8-K.



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ITEM 11.EXECUTIVE COMPENSATION
The information required by this item will be set forth under Executive Compensation Data and Report of the Compensation Committee in the Exelon Proxy Statement for the 20182023 Annual Meeting of Shareholders or the ComEd 20182023 Information Statement, which are incorporated herein by reference.



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ITEM 12.SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
The additional information required by this item will be set forth under Ownership of Exelon Stock in the 2023 Exelon Proxy Statement for the 2018 Annual Meeting of Shareholders or the ComEd 20182023 Information Statement which areand incorporated herein by reference.
Securities Authorized for Issuance under Exelon Equity Compensation Plans
[A][B][C]
[A][B] [C] [D]
Plan Category
Number of securities to
be issued upon
exercise of outstanding
Options, warrants and
rights (Note 1)
 
Weighted-average
price of outstanding
Options, warrants
and rights (Note 2)
 
Number of securities
remaining available
for future issuance
under equity
compensation plans
(excluding securities
reflected in
column [B]) (Note 3)
Plan CategoryNumber of securities to
be issued upon
exercise of outstanding
Options, warrants and
rights (Note 1)
Weighted-average
price of outstanding
Options, warrants
and rights (Note 2)
Number of securities
remaining available
for future issuance
under equity
compensation plans
(excluding securities
reflected in
column [A]) (Note 3)
Equity compensation plans approved by security holders21,755,400
 $28.13
 23,634,900
Equity compensation plans approved by security holders3,991,435 $— 43,893,655 
__________
(1)Balance includes stock options, unvested performance shares, and unvested restricted shares granted under the Exelon LTIP or predecessor company plans including shares awarded under those plans and deferred into the stock deferral plan, and deferred stock units granted to directors as part of their compensation. For performance shares granted in 2015, 2016 and 2017, the total includes the number of shares that could be granted, if the performance and total shareholder return modifier metrics were both at maximum, representing a total of 9,546,000 shares. If the performance and total shareholder return modifier metrics were at target, the number of securities to be issued for such awards would be 4,773,000. The deferred stock units granted to directors includes 384,900 shares to be issued upon the conversion of deferred stock units awarded to members of the Exelon Board of Directors, and 109,200 shares to be issued upon the conversion of stock units held by members of the Exelon Board of Directors that were earned under a legacy Constellation Energy Group plan. Conversion of the deferred stock units to shares will occur after the director terminates service to the Exelon board or the board of any of its subsidiary companies. See Note 20—Stock-Based Compensation Plans of the Combined Notes to Consolidated Financial Statements for additional information about the material features of the plans.
(2)Includes outstanding restricted stock units and performance shares that can be exercised for no consideration. Without such instruments, the weighted-average price of outstanding options, warrants and rights shown in column [C] would be $47.69.
(3)Includes 19,737,600 shares available for issuance from the company’s employee stock purchase plan.

(1)Balance includes unvested performance shares, and unvested restricted stock units that were granted under the Exelon LTIP or predecessor company plans (including shares awarded under those plans and deferred into the stock deferral plan) and deferred stock units granted to directors as part of their compensation. Unvested performance shares are subject to performance metrics and to a total shareholder return modifier. Additionally, pursuant to the terms of the Exelon LTIP plan, 50% of final payouts are made in the form of shares of common stock and 50% is made in form of in cash, or if the participant has exceeded 200% of their stock ownership requirement, 100% of the final payout is made in cash. For performance shares granted in 2020, 2021, and 2022, the total includes the maximum number of shares that could be issued assuming all participants receive 50% of payouts in shares and assuming the performance and total shareholder return modifier metrics were both at maximum, representing best case performance, for a total of 2,512,560 shares. If the performance and total shareholder return modifier metrics were at "target", the number of securities to be issued for such awards would be 1,256,280. The balance also includes 471,350 shares to be issued upon the conversion of deferred stock units awarded to members of the Exelon board of directors. Conversion of the deferred stock units to shares of common stock occurs after a director terminates service to the Exelon board or the board of any of its subsidiary companies. See Note 20 — Stock-Based Compensation Plans of the Combined Notes to Consolidated Financial Statements for additional information about the material features of the plans.
(2)There are no outstanding stock options. The weighted-average price reported in column B does not take the performance shares and shares credited to deferred compensation plans into account.
(3)Includes 12,662,529 shares remaining available for issuance from the employee stock purchase plan.
No ComEd securities are authorized for issuance under equity compensation plans.



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ITEM 13.CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE
The additional information required by this item will be set forth under Related Persons Transactions and Director Independence in the Exelon Proxy Statement for the 20182023 Annual Meeting of Shareholders or the ComEd 20182023 Information Statement, which are incorporated herein by reference.



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ITEM 14.PRINCIPAL ACCOUNTING FEES AND SERVICES
The information required by this item will be set forth under The Ratification of PricewaterhouseCoopers LLP as Exelon’s Independent Accountant for 20182023 in the Exelon Proxy Statement for the 20182023 Annual Meeting of Shareholders and the ComEd 20182023 Information Statement, which are incorporated herein by reference.

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PART IV
ITEM 15.EXHIBITS, FINANCIAL STATEMENT SCHEDULES
(a)The following documents are filed as a part of this report:
(1) Exelon
(i)Financial Statements (Item 8):
ITEM 15.EXHIBITS, FINANCIAL STATEMENT SCHEDULES
(a)The following documents are filed as a part of this report:
Exelon
1.Financial Statements:
Report of Independent Registered Public Accounting Firm dated February 9, 201814, 2023 of PricewaterhouseCoopers LLP (PCAOB ID 238)
Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Balance Sheets at December 31, 20172022 and 20162021
Consolidated Statements of Changes in Equity for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Notes to Consolidated Financial Statements
2.(ii)Financial Statement Schedules:
Schedule I—Condensed Financial Information of Parent (Exelon Corporate) at December 31, 20172022 and 20162021 and for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2022, 2021, and 2020
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto.

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Table of Contents
Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial Information of Parent (Exelon Corporate)
Condensed Statements of Operations and Other Comprehensive Income
 
 For the Years Ended December 31,
(In millions)202220212020
Operating expenses
Operating and maintenance$25 $(9)$(2)
Operating and maintenance from affiliates14 10 
Other
Total operating expenses31 10 
Operating loss(31)(7)(10)
Other income and (deductions)
Interest expense, net(413)(333)(378)
Equity in earnings of investments2,450 1,908 1,482 
Interest income from affiliates, net— 
Other, net22 — 15 
Total other income2,064 1,575 1,120 
Income from continuing operations before income taxes2,033 1,568 1,110 
Income taxes(21)(48)11 
Net income from continuing operations after income taxes2,054 1,616 1,099 
Net income from discontinued operations after income taxes116 90 864 
Net income$2,170 $1,706 $1,963 
Other comprehensive income (loss), net of income taxes
Pension and non-pension postretirement benefit plans:
Prior service benefit reclassified to periodic costs$(1)$(4)$(40)
Actuarial loss reclassified to periodic cost42 223 190 
Pension and non-pension postretirement benefit plan valuation adjustment46 431 (357)
Unrealized gain (loss) on cash flow hedges— (1)
Other comprehensive income (loss)89 650 (208)
Comprehensive income$2,259 $2,356 $1,755 
 
For the Years Ended
December 31,
(In millions)2017 2016 2015
Operating expenses     
Operating and maintenance$10
 $221
 $
Operating and maintenance from affiliates25
 51
 43
Other4
 4
 4
Total operating expenses39
 276
 47
Operating loss(39) (276) (47)
Other income and (deductions)     
Interest expense, net(315) (312) (168)
Equity in earnings of investments4,398
 1,521
 2,461
Interest income from affiliates, net40
 39
 43
Other, net1
 7
 (43)
Total other income4,124
 1,255
 2,293
Income before income taxes4,085
 979
 2,246
Income taxes315
 (155) (23)
Net income$3,770
 $1,134
 $2,269
Other comprehensive income (loss)     
Pension and non-pension postretirement benefit plans:     
Prior service benefit reclassified to periodic costs$(56) $(48) $(46)
Actuarial loss reclassified to periodic cost197
 184
 220
Pension and non-pension postretirement benefit plan valuation adjustment10
 (181) (99)
Unrealized gain on cash flow hedges3
 2
 9
Unrealized gain on marketable securities6
 1
 
Unrealized gain (loss) on equity investments6
 (4) (3)
Unrealized gain (loss) on foreign currency translation7
 10
 (21)
Other comprehensive income (loss)173

(36)
60
Comprehensive income$3,943
 $1,098
 $2,329



See the Notes to Financial Statements


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Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial Information of Parent (Exelon Corporate)
Condensed Statements of Cash Flows
 
 For the Years Ended December 31,
(In millions)202220212020
Net cash flows provided by operating activities$1,690 $3,629 $3,018 
Cash flows from investing activities
Changes in Exelon intercompany money pool35 381 (477)
Notes receivable from affiliates274 — 550 
Investment in affiliates(4,011)(2,231)(1,969)
Other investing activities— — 
Net cash flows used in investing activities(3,702)(1,849)(1,896)
Cash flows from financing activities
Changes in short-term borrowings448 — (136)
Proceeds from short-term borrowings with maturities greater than 90 days1,150 500 — 
Repayments on short-term borrowings with maturities greater than 90 days(1,300)(350)— 
Issuance of long-term debt3,350 — 2,000 
Retirement of long-term debt(1,150)(300)(1,450)
Issuance of common stock563 — — 
Dividends paid on common stock(1,334)(1,497)(1,492)
Proceeds from employee stock plans36 80 45 
Other financing activities(35)19 (27)
Net cash flows provided by (used in) financing activities1,728 (1,548)(1,060)
(Decrease) increase in cash, restricted cash, and cash equivalents(284)232 62 
Cash, restricted cash, and cash equivalents at beginning of period295 63 
Cash, restricted cash, and cash equivalents at end of period$11 $295 $63 
 
For the Years Ended
December 31,
(In millions)2017 2016 2015
Net cash flows provided by operating activities$1,921
 $1,029
 $3,071
Cash flows from investing activities     
Changes in Exelon intercompany money pool(129) 1,390
 (1,217)
Notes receivable from affiliates
 
 550
Investment in affiliates(1,717) (1,757) (212)
Acquisition of business
 (6,962) 
Other investing activities(5) 5
 (55)
Net cash flows used in investing activities(1,851)
(7,324)
(934)
Cash flows from financing activities     
Issuance of long-term debt
 1,800
 4,200
Proceeds from short-term borrowings with maturities greater than 90 days500
 
 
Retirement of long-term debt(569) (46) (2,263)
Issuance of common stock
 
 1,868
Common stock issued from treasury stock1,150
 
 
Dividends paid on common stock(1,236) (1,166) (1,105)
Proceeds from employee stock plans150
 55
 32
Other financing activities(9) (20) (58)
Net cash flows (used in) provided by financing activities(14) 623
 2,674
Increase (Decrease) in cash and cash equivalents56
 (5,672) 4,811
Cash and cash equivalents at beginning of period18
 5,690
 879
Cash and cash equivalents at end of period$74
 $18
 $5,690

See the Notes to Financial Statements


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Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial Information of Parent (Exelon Corporate)
Condensed Balance Sheets
 
 December 31,
(In millions)20222021
ASSETS
Current assets
Cash and cash equivalents$11 $295 
Accounts receivable, net
Other accounts receivable358 318 
Accounts receivable from affiliates17 35 
Notes receivable from affiliates182 217 
Regulatory assets154 266 
Other41 
Total current assets728 1,172 
Property, plant, and equipment, net44 45 
Deferred debits and other assets
Regulatory assets2,650 3,164 
Investments in affiliates from continuing operations35,925 29,563 
Investments in affiliates from discontinued operations— 12,333 
Deferred income taxes929 1,351 
Non-pension postretirement benefit asset187 — 
Notes receivable from affiliates— 319 
Other115 42 
Total deferred debits and other assets39,806 46,772 
Total assets$40,578 $47,989 
 December 31,
(In millions)2017 2016
ASSETS   
Current assets   
Cash and cash equivalents$74
 $18
Deposit with IRS
 1,250
Accounts receivable, net   
Other accounts receivable431
 73
Accounts receivable from affiliates33
 48
Notes receivable from affiliates217
 88
Regulatory assets284
 263
Other4
 
Total current assets1,043
 1,740
Property, plant and equipment, net50
 51
Deferred debits and other assets   
Regulatory assets3,697
 4,033
Investments in affiliates39,272
 34,869
Deferred income taxes1,431
 2,107
Notes receivable from affiliates910
 922
Other234
 256
Total deferred debits and other assets45,544
 42,187
Total assets$46,637
 $43,978

See the Notes to Financial Statements


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Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial Information of Parent (Exelon Corporate)
Condensed Balance Sheets
 
 December 31,
(In millions)20222021
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities
Short-term borrowings$948 $650 
Long-term debt due within one year850 1,150 
Accounts payable188 — 
Accrued expenses101 47 
Payables to affiliates360 360 
Regulatory liabilities12 
Pension obligations77 49 
Other40 
Total current liabilities2,543 2,299 
Long-term debt8,742 6,265 
Deferred credits and other liabilities
Regulatory liabilities103 63 
Pension obligations3,896 4,416 
Non-pension postretirement benefit obligations— 87 
Deferred income taxes53 362 
Other497 104 
Total deferred credits and other liabilities4,549 5,032 
Total liabilities15,834 13,596 
Commitments and contingencies
Shareholders’ equity
Common stock (No par value, 2,000 shares authorized, 994 shares and 979 shares outstanding as of December 31, 2022 and 2021, respectively)20,908 20,324 
Treasury stock, at cost (2 shares as of December 31, 2022 and 2021)(123)(123)
Retained earnings4,597 16,942 
Accumulated other comprehensive loss, net(638)(2,750)
Total shareholders’ equity24,744 34,393 
Total liabilities and shareholders’ equity$40,578 $47,989 
 December 31,
(In millions)2017 2016
LIABILITIES AND SHAREHOLDERS’ EQUITY   
Current liabilities   
Short-term borrowings$500
 $
Long-term debt due within one year
 570
Accounts payable2
 2
Accrued expenses99
 489
Payables to affiliates360
 706
Regulatory liabilities16
 16
Pension obligations65
 58
Other46
 50
Total current liabilities1,088
 1,891
Long-term debt7,161
 7,193
Deferred credits and other liabilities   
Regulatory liabilities15
 31
Pension obligations7,792
 8,608
Non-pension postretirement benefit obligations322
 7
Deferred income taxes220
 226
Other180
 182
Total deferred credits and other liabilities8,529
 9,054
Total liabilities16,778
 18,138
Commitments and contingencies
 
Shareholders’ equity   
Common stock (No par value, 2000 shares authorized, 963 shares and 924 shares outstanding at December 31, 2017 and 2016, respectively)18,966
 18,797
Treasury stock, at cost (2 shares and 35 shares at December 31, 2017 and 2016, respectively)(123) (2,327)
Retained earnings13,503
 12,030
Accumulated other comprehensive loss, net(2,487) (2,660)
Total shareholders’ equity29,859
 25,840
Total liabilities and shareholders’ equity$46,637
 $43,978


See the Notes to Financial Statements


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Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial Information of Parent (Exelon Corporate)
Notes to Financial Statements

1. Basis of Presentation
Exelon Corporate is a holding company that conducts substantially all of its business operations through its subsidiaries. These condensed financial statements and related footnotes have been prepared in accordance with Rule 12-04, Schedule I of Regulation S-X. These statements should be read in conjunction with the consolidated financial statements, and notes thereto, of Exelon Corporation.
As of December 31, 2022 and 2021, Exelon Corporate ownsowned 100% of all of its significant subsidiaries, either directly or indirectly, except for Commonwealth Edison Company (ComEd), of which Exelon Corporate owns more than 99%, and BGE,. As of which Exelon owns 100% of the common stock but none of BGE’s preferred stock. BGE redeemed all of its outstanding preferred stock in 2016.
2. Mergers
On March 23, 2016, Exelon completed the merger contemplated by the Merger Agreement among Exelon, Purple Acquisition Corp., a wholly owned subsidiary of Exelon (Merger Sub) and Pepco Holdings, Inc. (PHI). AsFebruary 1, 2022, as a result of the completion of the separation, Exelon Corporate no longer retains any equity ownership interest in Generation or Constellation. The separation of Constellation, including Generation and its subsidiaries, meets the criteria for discontinued operations and as such, results of operations are presented as discontinued operations and have been excluded from continuing operations for all periods presented. Accounting rules require that merger, Merger Sub was merged into PHI (the PHI Merger) with PHI survivingcertain BSC costs previously allocated to Generation be presented as a wholly owned subsidiarypart of ExelonExelon’s continuing operations as these costs do not qualify as expenses of the discontinued operations. Comprehensive income and Exelon Energy Delivery Company, LLC (EEDC), a wholly owned subsidiary of Exelon which also owns Exelon's interests in ComEd, PECOcash flows related to Generation have not been segregated and BGE (through a special purpose subsidiaryare included in the caseCondensed Statements of BGE).Operations and Comprehensive Income and Condensed Statements of Cash Flows, respectively, for all periods presented. See Note 4—Mergers, Acquisitions and Dispositions2 — Discontinued Operations of the Combined Notes to Consolidated Financial Statements for additional information oninformation.
2. Derivative Financial Instruments
See Note 15—Derivative Financial Instruments of the PHI Merger.Combined Notes to Consolidated Financial Statements for Exelon Corporate’s derivatives.
3. Debt and Credit Agreements
Short-Term Borrowings
Exelon Corporate meets its short-term liquidity requirements primarily through the issuance of commercial paper. Exelon Corporate had no$449 million in outstanding commercial paper borrowings at bothas of December 31, 20172022 and no outstanding commercial paper as of December 31, 2016.2021.
Short-Term Loan Agreements
On March 23, 2017, Exelon Corporate entered into a $500 million term loan agreement which expiresfor $500 million. The loan agreement was renewed on March 22, 2018.14, 2022 and will expire on March 16, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to LIBORSOFR plus 1%0.65% and all indebtedness thereunder is unsecured. The loan agreement is reflected in Exelon’s ConsolidatedExelon Corporation's Balance SheetSheets within Short-TermShort-term borrowings.
On March 31, 2021, Exelon Corporate entered into a 364-day term loan agreement for $150 million with a variable interest rate of LIBOR plus 0.65% and an expiration date of March 30, 2022. Exelon Corporate repaid the term loan on March 30, 2022.
In connection with the separation, on January 24, 2022, Exelon Corporate entered into a 364-day term loan agreement for $1.15 billion. The loan agreement was set to expire on January 23, 2023. Pursuant to the loan agreement, loans made thereunder bore interest at a variable rate equal to SOFR plus 0.75% until July 23, 2022 and a rate of SOFR plus 0.975% thereafter. All indebtedness pursuant to the loan agreement was unsecured. On August 11, 2022, Exelon Corporate made a partial repayment of $575 million on the term loan. The remaining $575 million outstanding balance was repaid on October 11, 2022 in conjunction with the $500 million 18-month term loan that was entered into on October 7, 2022.
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Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial Information of Parent (Exelon Corporate)
Notes to Financial Statements
Revolving Credit Agreements
On May 26, 2016, Exelon Corporate amended and extended its syndicated revolving credit facility with aggregate bank commitments of $600 million through May 26, 2021. As of December 31, 2017,2022, Exelon Corporation had a $900 million aggregate bank commitment under its existing syndicated revolving facility in which $448 million was available capacity under those commitmentsto support additional commercial paper as of $555 million.December 31, 2022. See Note 13—16 — Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for furtheradditional information regarding Exelon Corporation’sCorporate’s credit agreement.

On February 1, 2022, Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial InformationCorporate entered into a new 5-year revolving credit facility with an aggregate bank commitment of Parent (Exelon Corporate)
Notes to Financial Statements

$900 million at a variable interest rate of SOFR plus 1.275% which replaced its existing $600 million syndicated revolving credit facility.
Long-Term Debt
The following tables present the outstanding long-term debt for Exelon Corporate as of December 31, 20172022 and December 31, 2016:2021:
    
Maturity
Date
 December 31, Maturity
Date
December 31,
Rates 2017 2016 Rates20222021
Long-term debt       Long-term debt
Junior subordinated notes  3.50% 2022 $1,150
 $1,150
Junior subordinated notes3.50 %2022$— $1,150 
Contract payment - junior subordinated notes  2.50% 2017 
 19
Senior unsecured notes(a)
2.45% 7.60% 2020 - 2046 5,889
 6,439
Senior unsecured notes(a)
2.75 %-7.60 %2025 - 20528,139 6,139 
Loan agreementLoan agreement4.95 %-5.15 %2023 - 20241,350 — 
Total long-term debt    7,039
 7,608
Total long-term debt9,489 7,289 
Unamortized debt discount and premium, net    (8) (8)Unamortized debt discount and premium, net(10)(10)
Unamortized debt issuance costs    (49) (57)Unamortized debt issuance costs(51)(39)
Fair value adjustment of consolidated subsidiary    179
 220
Fair value adjustmentFair value adjustment164 175 
Long-term debt due within one year(b)    
 (570)(850)(1,150)
Long-term debt    $7,161

$7,193
Long-term debt$8,742 $6,265 
__________
(a)Senior unsecured notes include mirror debt that is held on both Generation and Exelon Corporation's balance sheets.
(a)Senior unsecured notes included mirror debt that was held on Exelon Corporation's Balance Sheet in 2021. In connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle the intercompany loan. See Note 16 — Debt and Credit Agreements for additional information on the merger debt.
(b)In connection with the separation, Exelon Corporate entered into three 18-month term loan agreements. On January 21, 2022, two of the loan agreements were issued for $300 million each with an expiration date of July 21, 2023. On January 24, 2022, the third loan agreement was issued for $250 million with an expiration date of July 24, 2023. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to SOFR plus 0.65%.
The long-term debt maturities for Exelon Corporate for the periods 2018,2019, 2020, 2021, 20222023 through 2027 and thereafter are as follows:
2023$850 
2024500 
2025807 
2026750 
2027650 
Thereafter5,932 
Total long-term debt$9,489 
2018$
2019
20201,450
2021300
20221,150
Remaining years4,139
Total long-term debt$7,039
4. Commitments and Contingencies
See Note 23—18—Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for Exelon Corporate’s commitments and contingencies related to environmental matters and fund transfer restrictions.contingencies.


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Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial Information of Parent (Exelon Corporate)
Notes to Financial Statements

5. Related Party Transactions
The financial statements of Exelon Corporate include related party transactions as presented in the tables below:
 For the Years Ended December 31,
(In millions)202220212020
Operating and maintenance from affiliates:
        BSC(a)
$$14 $10 
Total operating and maintenance from affiliates:$$14 $10 
Interest income (expense) from affiliates, net:
BSC$$— $
EEDC(b)
— — 
Total interest income from affiliates, net:$$— $
Equity in earnings (losses) of investments:
BSC$(18)$(301)$(273)
EEDC(b)
2,482 2,215 1,729 
PCI(9)(1)— 
Exelon InQB8R(4)(7)(1)
Other(1)27 
Total equity in earnings of investments:$2,450 $1,908 $1,482 
Cash contributions received from affiliates$2,027 $1,842 $1,638 
284

 
For the Years Ended
December 31,
(In millions)2017 2016 2015
Operating and maintenance from affiliates:     
BSC (a)
$23
 $51
 $43
Other2
 
 
Total operating and maintenance from affiliates:$25
 $51
 $43
Interest income from affiliates, net:     
Generation$37
 $39
 $43
BSC3
 
 
Total interest income from affiliates, net:$40
 $39
 $43
Equity in earnings (losses) of investments:     
Exelon Energy Delivery Company, LLC(b)
$1,670
 $1,041
 $1,079
PCI1
 6
 
BSC1
 1
 
UII, LLC41
 (9) 20
Exelon Transmission Company, LLC(10) (13) (8)
Exelon Enterprise1
 (1) (1)
Generation2,694
 496
 1,371
Total equity in earnings of investments$4,398
 $1,521
 $2,461
      
Cash contributions received from affiliates$1,879
 $1,912
 $3,209
Table of Contents


Exelon Corporation and Subsidiary Companies
Schedule I – Condensed Financial Information of Parent (Exelon Corporate)
Notes to Financial Statements

December 31, As of December 31,
(in millions)2017 2016(in millions)20222021
Accounts receivable from affiliates (current):   Accounts receivable from affiliates (current):
BSC(a)
$1
 $15
BSC(a)
$$
Generation21
 22
Generation— 13 
ComEd3
 3
ComEd
PECO1
 1
PECO
BGE1
 1
BGE
PHISCO6
 6
PHISCO
Total accounts receivable from affiliates (current)$33
 $48
Exelon EnterprisesExelon Enterprises— 
Total accounts receivable from affiliates (current):Total accounts receivable from affiliates (current):$17 $35 
Notes receivable from affiliates (current):   Notes receivable from affiliates (current):
BSC(a)
$217
 $88
BSC(a)
$138 $210 
Investments in affiliates:   
PHIPHI44 
Total notes receivable from affiliates (current):Total notes receivable from affiliates (current):$182 $217 
Investments in affiliates from continuing operations:Investments in affiliates from continuing operations:
BSC(a)
$196
 $194
BSC(a)
$384 $146 
Exelon Energy Delivery Company, LLC(b)
25,082
 23,003
EEDC(b)
EEDC(b)
35,092 32,621 
PCI78
 77
PCI52 62 
UII, LLC268
 92
Exelon Transmission Company, LLC1
 5
UIIUII365 365 
Voluntary Employee Beneficiary Association trust(4) (5)Voluntary Employee Beneficiary Association trust
Exelon Enterprises22
 21
Exelon Enterprises
Generation13,635
 11,488
Other(6) (6)
Total investments in affiliates$39,272
 $34,869
Notes receivable from affiliates (non-current):   
ConectivConectiv12 — 
Exelon InQB8RExelon InQB8R15 26 
Other(d)
Other(d)
(2)(3,663)
Total investments in affiliates from continuing operations:Total investments in affiliates from continuing operations:$35,925 $29,563 
Notes receivable from affiliates (noncurrent):Notes receivable from affiliates (noncurrent):
Generation(c)
$910
 $922
Generation(c)
$— $319 
Accounts payable to affiliates (current):   Accounts payable to affiliates (current):
ComEd$
 $345
UII, LLC360
 361
Total accounts payable to affiliates (current)$360
 $706
UIIUII$360 $360 
Total accounts payable to affiliates (current):Total accounts payable to affiliates (current):$360 $360 
__________
(a)Exelon Corporate receives a variety of corporate support services from BSC, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead.
(b)Exelon Energy Delivery Company, LLC consists of ComEd, PECO, BGE, PHI, Pepco, DPL and ACE.
(c)In connection with the debt obligations assumed by Exelon as part of the Constellation merger, Exelon and subsidiaries of Generation (former Constellation subsidiaries) assumed intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes payable included in Long-Term Debt to affiliate on Generation’s Consolidated Balance Sheets and intercompany notes receivable at Exelon Corporate, which are eliminated in consolidation on Exelon’s Consolidated Balance Sheets.

(a)Exelon Corporate receives a variety of corporate support services from BSC, including legal, human resources, financial, information technology, and supply management services. All services are provided at cost, including applicable overhead.
(b)EEDC consists of ComEd, PECO, BGE, PHI, Pepco, DPL, and ACE.
(c)In connection with the debt obligations assumed by Exelon as part of the Constellation merger, Exelon and subsidiaries of Generation (former Constellation subsidiaries) entered into intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes receivable at Exelon Corporate from Generation. In connection with the separation, on January 31, 2022, Exelon Corporate received cash from Generation of $258 million to settle the intercompany loan. See Schedule 1 - 2. Debit and Credit agreements for additional information on the merger debt.
(d)Primarily relates to elimination of affiliate transactions with Generation, primarily related to the Regulatory Agreement Units. See Note 3 — Regulatory Matters and Note 23 — Related Party Transactions of the Combined Notes to Consolidated Financial Statements for additional information.
Charitable Contributions
In December 2022, Exelon Corporation made an unconditional promise to give $20 million to the Exelon Foundation. The contribution was recorded in Operating and maintenance expense within the Condensed Statements of Operations and Comprehensive Income with the offset in Accrued expenses and Other Deferred credits and other liabilities on the Condensed Balance Sheets.
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Exelon Corporation and Subsidiary Companies
Schedule II – Valuation and Qualifying Accounts
Column A Column B Column C Column D Column EColumn AColumn BColumn CColumn DColumn E
   Additions and adjustments    Additions and adjustments
Description 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses
 
Charged
to Other
Accounts
 Deductions 
Balance at
End
of Period
DescriptionBalance at
Beginning
of Period
Charged to
Costs and
Expenses
Charged
to Other
Accounts
DeductionsBalance at
End
of Period
 (in millions)
For the year ended December 31, 2017          
Allowance for uncollectible accounts(a)
 $334

$126

$27
(c) 
$165
 (d) 
$322
(In millions)(In millions)
For the year ended December 31, 2022For the year ended December 31, 2022
Allowance for credit losses(a)
Allowance for credit losses(a)
$392 

$174 (b)$28 $185 (c)$409 
Deferred tax valuation allowance 20



17


  
37
Deferred tax valuation allowance37 

— 

57 — 94 
Reserve for obsolete materials 113

56

10

5
  
174
Reserve for obsolete materials13 

— 15 
For the year ended December 31, 2016 






 

Allowance for uncollectible accounts(a)
 $284

$162

$99
 (b)(c) 
$211
 (d)  
$334
For the year ended December 31, 2021For the year ended December 31, 2021



Allowance for credit losses(a)
Allowance for credit losses(a)
$405 

$107 (b)$— 

$120 (c)$392 
Deferred tax valuation allowance 13



10
 (b) 
3
  
20
Deferred tax valuation allowance

— 

33 (d)— 37 
Reserve for obsolete materials 105

12

1
 (b) 
5
  
113
Reserve for obsolete materials11 


— 13 
For the year ended December 31, 2015 






 

Allowance for uncollectible accounts(a)
 $311

$113

$27
(c) 
$167
 (d)  
$284
For the year ended December 31, 2020For the year ended December 31, 2020



Allowance for credit losses(a)
Allowance for credit losses(a)
$213 

$228 (b)$38 $74 (c)$405 
Deferred tax valuation allowance 50



(27)
10
  
13
Deferred tax valuation allowance

— 

— 
Reserve for obsolete materials 95

10

2

2
  
105
Reserve for obsolete materials12 


— 11 
__________
(a)Excludes the non-current allowance for uncollectible accounts related to PECO’s installment plan receivables of $15 million, $23 million, and $8 million for the years ended December 31, 2017, 2016, and 2015, respectively.
(b)Primarily represents the addition of PHI's results as of March 23, 2016, the date of the merger
(c)Includes charges for late payments and non-service receivables.
(d)Write-off of individual accounts receivable.

(a)Excludes the noncurrent allowance for credit losses related to PECO’s installment plan receivables of $7 million, $14 million, and $5 million for the years ended December 31, 2022, 2021, and 2020, respectively.
Exelon Generation(b)The amount charged to costs and expenses includes the amount that was reclassified to regulatory assets/liabilities under different mechanisms applicable to the different jurisdictions the Utility Registrants operate in.
(c)Primarily reflects write-offs, net of recoveries of individual accounts receivable.
(d)DPL recorded a full valuation allowance against Delaware net operating losses carryforwards due to a change in Delaware tax law. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information on the valuation allowance.


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Table of Contents

Commonwealth Edison Company LLC and Subsidiary Companies
Generation
(2) ComEd
1.(i)Financial Statements:Statements (Item 8):
Report of Independent Registered Public Accounting Firm dated February 9, 201814, 2023 of PricewaterhouseCoopers LLP (PCAOB ID 238)
Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Balance Sheets at December 31, 20172022 and 20162021
Consolidated Statements of Changes in Shareholders’ Equity for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Notes to Consolidated Financial Statements
2.(ii)Financial Statement Schedules:Schedule:
Schedule II – II—Valuation and Qualifying Accounts for the Years Ended December 31, 2022, 2021, and 2020
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

287

Table of Contents


Exelon GenerationCommonwealth Edison Company LLC and Subsidiary Companies
Schedule II – Valuation and Qualifying Accounts
Column AColumn BColumn CColumn DColumn E
Additions and adjustments
DescriptionBalance at
Beginning
of Period
Charged to
Costs and
Expenses
Charged
to Other
Accounts
DeductionsBalance at
End
of Period
(In millions)
For the year ended December 31, 2022
Allowance for credit losses$90 $24 (a)$$46 (b)$76 
Reserve for obsolete materials— 

For the year ended December 31, 2021

Allowance for credit losses$118 $18 (a)$$47 (b)$90 
Reserve for obsolete materials— 

For the year ended December 31, 2020

Allowance for credit losses$79 $54 (a)$13 $28 (b)$118 
Reserve for obsolete materials

— 

__________
(a)ComEd is allowed to recover from or refund to customers the difference between its annual credit loss expense and the amounts collected in rates annually through a rider mechanism. The amount charged to costs and expenses includes the amount that was reclassified to regulatory assets/liabilities under such mechanism. See Note 3 – Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
(b)Write-offs, net of recoveries of individual accounts receivable.
288
Column A Column B Column C Column D Column E
    Additions and adjustments    
Description 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses
 
Charged
to Other
Accounts
 Deductions 
Balance at
End
of Period
  (in millions)
For the year ended December 31, 2017          
Allowance for uncollectible accounts $91

$34

$
 $11
 $114
Deferred tax valuation allowance 9



14
 
 23
Reserve for obsolete materials 106

51

9
 
 166
For the year ended December 31, 2016 






 

Allowance for uncollectible accounts $77

$19

$3
 $8
 $91
Deferred tax valuation allowance 11




 2
 9
Reserve for obsolete materials 102

6


 2
 106
For the year ended December 31, 2015 






 

Allowance for uncollectible accounts $60

$22

$

$5
 $77
Deferred tax valuation allowance 48
 
 (27) 10
 11
Reserve for obsolete materials 93

9




 102

Table of Contents



Commonwealth EdisonPECO Energy Company and Subsidiary Companies
ComEd
(3) PECO
1.(i)Financial Statements:Statements (Item 8):
Report of Independent Registered Public Accounting Firm dated February 9, 201814, 2023 of PricewaterhouseCoopers LLP (PCAOB ID 238)
Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Balance Sheets at December 31, 20172022 and 20162021
Consolidated Statements of Changes in Shareholders’Shareholder's Equity for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Notes to Consolidated Financial Statements
2.(ii)Financial Statement Schedules:Schedule:
Schedule II – II—Valuation and Qualifying Accounts for the Years Ended December 31, 2022, 2021, and 2020
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

289

Table of Contents
Commonwealth Edison
PECO Energy Company and Subsidiary Companies
Schedule II – Valuation and Qualifying Accounts
Column A Column B Column C Column D Column E
    Additions and adjustments    
Description 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses
 
Charged
to Other
Accounts
 Deductions 
Balance at
End
of Period
  (in millions)
For the year ended December 31, 2017          
Allowance for uncollectible accounts $70

$39

$20
(a)  
$56
(b)  
$73
Reserve for obsolete materials 4

3

1
  
3
  
5
For the year ended December 31, 2016 






 

Allowance for uncollectible accounts $75

$45

$23
(a)  
$73
(b)  
$70
Reserve for obsolete materials 3

4

1
  
4
  
4
For the year ended December 31, 2015 






 

Allowance for uncollectible accounts $84

$39

$18
(a)  
$66
(b)  
$75
Reserve for obsolete materials 2

1

2
  
2
  
3
Column AColumn BColumn CColumn DColumn E
  Additions and adjustments
DescriptionBalance at
Beginning
of Period
Charged to
Costs and
Expenses
Charged
to Other
Accounts
DeductionsBalance at
End
of Period
(In millions)
For the year ended December 31, 2022
Allowance for credit losses(a)
$112 

$44 (b) $14 $56 (c)$114 
Deferred tax valuation allowance— — 
Reserve for obsolete materials

— 
For the year ended December 31, 2021

Allowance for credit losses(a)
$124 

$32 (b) $(6)$38 (c)$112 
Deferred tax valuation allowance— — 
Reserve for obsolete materials

— 
For the year ended December 31, 2020

Allowance for credit losses(a)
$62 

$76 (b) $$20 (c)$124 
Deferred tax valuation allowance— — — 
Reserve for obsolete materials


— 

__________
(a)Excludes the noncurrent allowance for credit losses related to PECO’s installment plan receivables of $7 million, $14 million, and $5 million for the years ended December 31, 2022, 2021, and 2020, respectively.
(b)The amount charged to costs and expenses includes the amount that was reclassified to the COVID-19 regulatory asset. See Note 3 – Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.
(c)Write-offs, net of recoveries of individual accounts receivable.

290

Table of Contents

Baltimore Gas and Electric Company
(4) BGE
(a)Primarily charges for late payments and non-service receivables.
(b)Write-off of individual accounts receivable.

PECO Energy Company and Subsidiary Companies
PECO
1.(i)Financial Statements:Statements (Item 8):
Report of Independent Registered Public Accounting Firm dated February 9, 201814, 2023 of PricewaterhouseCoopers LLP (PCAOB ID 238)
Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2017, 20162022, 2021 and 20152020
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 20162022, 2021 and 20152020
Consolidated Balance Sheets at December 31, 20172022 and 20162021
Consolidated Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2017, 20162022, 2021 and 20152020
Notes to Consolidated Financial Statements
2.(ii)Financial Statement Schedules:Schedule:
Schedule II – II—Valuation and Qualifying Accounts for the Years Ended December 31, 2022, 2021, and 2020
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

291

Table of Contents
PECO Energy
Baltimore Gas and Electric Company and Subsidiary Companies
Schedule II – Valuation and Qualifying Accounts
Column A Column B Column C Column D Column E
    Additions and adjustments    
Description 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses
 
Charged
to Other
Accounts
 Deductions 
Balance at
End
of Period
  (in millions)
For the year ended December 31, 2017          
Allowance for uncollectible accounts(a)
 $61

$26

$4
(b)  
$35
(c)  
$56
Reserve for obsolete materials 2




  

  
2
For the year ended December 31, 2016 






 

Allowance for uncollectible accounts(a)
 $83

$32

$7
(b)  
$61
(c)  
$61
Reserve for obsolete materials 1

1


  

  
2
For the year ended December 31, 2015 






 

Allowance for uncollectible accounts(a)
 $100

$37

$9
(b)  
$63
(c)  
$83
Reserve for obsolete materials 1




  

  
1
Column AColumn BColumn CColumn DColumn E
Additions and adjustments
DescriptionBalance at
Beginning
of Period
Charged to
Costs and
Expenses
Charged
to Other
Accounts
DeductionsBalance at
End
of Period
(In millions)
For the year ended December 31, 2022
Allowance for credit losses$47 

$37 (a)$

$26 (b)$64 
Deferred tax valuation allowance— 

— 

— 
Reserve for obsolete materials

— 

— 
For the year ended December 31, 2021


Allowance for credit losses$44 

$16 (a)$

$16 (b)$47 
Reserve for obsolete materials

— — 

— 
For the year ended December 31, 2020


Allowance for credit losses$17 

$31 (a)$

$10 (b)$44 
Deferred tax valuation allowance— (1)— — 
Reserve for obsolete materials— — — 
__________
(a)Excludes the non-current allowance for uncollectible accounts related to PECO’s installment plan receivables of $15 million, $23 million, and $8 million for the years ended December 31, 2017, 2016, and 2015, respectively.
(b)Primarily charges for late payments.
(c)Write-off of individual accounts receivable.

(a)The amount charged to costs and expenses includes the amount that was reclassified to regulatory assets/liabilities under different mechanisms as approved by the MDPSC.
Baltimore Gas and Electric Company(b)Write-offs, net of recoveries of individual accounts receivable.

292

Table of Contents

Pepco Holdings LLC and Subsidiary Companies
BGE
(5) PHI
1.(i)Financial Statements:Statements (Item 8):
Report of Independent Registered Public Accounting Firm dated February 9, 201814, 2023 of PricewaterhouseCoopers LLP (PCAOB ID 238)
Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Balance Sheets at December 31, 20172022 and 20162021
Consolidated Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Notes to Consolidated Financial Statements
2.(ii)Financial Statement Schedules:Schedule:
Schedule II – II—Valuation and Qualifying Accounts for the Years Ended December 31, 2022, 2021, and 2020
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

293

Table of Contents
Baltimore Gas and Electric Company
Pepco Holdings LLC and Subsidiary Companies
Schedule II – Valuation and Qualifying Accounts
Column A Column B Column C Column D Column EColumn AColumn BColumn CColumn DColumn E
   Additions and adjustments    Additions and adjustments
Description 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses
 
Charged
to Other
Accounts
 Deductions 
Balance at
End
of Period
DescriptionBalance at
Beginning
of Period
Charged to
Costs and
Expenses
Charged
to Other
Accounts
DeductionsBalance at
End
of Period
 (in millions)
For the year ended December 31, 2017          
Allowance for uncollectible accounts $32

$8

$(3)
$13
(a)  
$24
(In millions)(In millions)
For the year ended December 31, 2022For the year ended December 31, 2022
Allowance for credit lossesAllowance for credit losses$143 $69 (a)$— $57 (b)$155 
Deferred tax valuation allowance 1




  

  
1
Deferred tax valuation allowance31 — — 35 
Reserve for obsolete materials 




  

  

Reserve for obsolete materials— — 
For the year ended December 31, 2016 






 

Allowance for uncollectible accounts $49

$1

$9

$27
(a)  
$32
For the year ended December 31, 2021For the year ended December 31, 2021
Allowance for credit lossesAllowance for credit losses$119 $41 (a)$$19 (b)$143 
Deferred tax valuation allowance 1




  

  
1
Deferred tax valuation allowance— — 31 (c)— 31 
Reserve for obsolete materials 




  

  

Reserve for obsolete materials— — 
For the year ended December 31, 2015 






 

Allowance for uncollectible accounts $67

$15

$

$33
(a)  
$49
Deferred tax valuation allowance 1
 
 
 
 1
For the year ended December 31, 2020For the year ended December 31, 2020
Allowance for credit lossesAllowance for credit losses$53 $69 (a)$13 $16 (b)$119 
Reserve for obsolete materials 
 
 
 
 
Reserve for obsolete materials— — 
__________
(a)The amount charged to costs and expenses includes the amount that was reclassified to regulatory assets/liabilities under different mechanisms applicable to the different jurisdictions Pepco, DPL, and ACE operate in.
(b)Write-offs, net of recoveries of individual accounts receivable.
(c)DPL recorded a full valuation allowance against Delaware net operating losses carryforwards due to a change in Delaware tax law. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information on the valuation allowance.

294

Table of Contents

Potomac Electric Power Company
(6) Pepco
(a)Write-off of individual accounts receivable.


Pepco Holdings LLC and Subsidiary Companies
PHI
1.(i)Successor Company Financial Statements:Statements (Item 8):
Report of Independent Registered Public Accounting Firm dated February 9, 201814, 2023 of PricewaterhouseCoopers LLP (PCAOB ID 238)
Consolidated Statements of Operations and Comprehensive Income (Loss) for the YearYears Ended December 31, 20172022, 2021 and for the Period March 24, 2016 to December 31, 20162020
Consolidated Statements of Cash Flows for the YearYears Ended December 31, 20172022, 2021 and for the Period March 24, 2016 to December 31, 20162020
Consolidated Balance Sheets at December 31, 20172022 and 20162021
Consolidated Statements of Changes in Shareholder's Equity for the YearYears Ended December 31, 20172022, 2021 and for the Period March 24, 2016 to December 31, 20162020
Notes to Consolidated Financial Statements
(ii)Predecessor Company Financial Statements:Statement Schedule:
Report of Independent Registered Public Accounting Firm dated February 13, 2017 of PricewaterhouseCoopers LLP
Consolidated Statements of Operations and Comprehensive Income (Loss) for the Period January 1, 2016 to March 23, 2016 and the Year Ended December 31, 2015
Consolidated Statements of Cash Flows for the Period January 1, 2016 to March 23, 2016 and for the Year Ended December 31, 2015
Consolidated Statements of Changes in Equity for the Period January 1, 2016 to March 23, 2016 and for the Year Ended December 31, 2015
Notes to Consolidated Financial Statements
2.Successor Financial Statement Schedules:
Schedule II – II—Valuation and Qualifying Accounts - Forfor the YearYears Ended December 31, 20172022, 2021, and the Period March 24, 2016 to December 31, 20162020
Predecessor Financial Statement Schedules:
Schedule II – Valuation and Qualifying Accounts - For the Period January 1, 2016 to March 23, 2016 and For the Year Ended December 31, 2015
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

295

Table of Contents


Pepco Holdings LLC and Subsidiary CompaniesPotomac Electric Power Company
Schedule II – Valuation and Qualifying Accounts
Column A Column B Column C Column D Column E
    Additions and adjustments    
Description Balance at
Beginning
of Period
 Charged to
Costs and
Expenses
 Charged
to Other
Accounts
 Deductions Balance at
End
of Period
  (in millions)
For the Year Ended December 31, 2017 (Successor)
          
Allowance for uncollectible accounts $80
 $19
 $6
(a)  
$50
(b)  
$55
Deferred tax valuation allowance 10
 
 3
 
  
13
Reserve for obsolete materials 2
 2
 
 2
  
2
March 24, 2016 to December 31, 2016 (Successor)
          
Allowance for uncollectible accounts $52
 $65
 $5
(a)  
$42
(b)  
$80
Deferred tax valuation allowance 63
 
 (53) 
 10
Reserve for obsolete materials 
 1
 
 (1) 2
January 1, 2016 to March 23, 2016 (Predecessor)
          
Allowance for uncollectible accounts $56
 $16
 $2
(a)  
$22
(b)  
$52
Deferred tax valuation allowance 63
 
 
 
  
63
Reserve for obsolete materials 
 
 
 
  

For the Year Ended December 31, 2015 (Predecessor)
          
Allowance for uncollectible accounts $40
 $59
 $5
(a)  
$48
(b)  
$56
Deferred tax valuation allowance 61
 
 2
 
 63
Reserve for obsolete materials 
 
 
 
 
Column AColumn BColumn CColumn DColumn E
Additions and adjustments
DescriptionBalance at
Beginning
of Period
Charged to
Costs and
Expenses
Charged
to Other
Accounts
DeductionsBalance at
End
of Period
(In millions)
For the year ended December 31, 2022
Allowance for credit losses$53 $36 (a)$$21 (b)$72 
Reserve for obsolete materials— — — 
For the year ended December 31, 2021
Allowance for credit losses$45 $14 (a)$$(b)$53 
Reserve for obsolete materials— — — 
For the year ended December 31, 2020
Allowance for credit losses$20 $25 (a)$$(b)$45 
Reserve for obsolete materials— — — 
__________
(a)The amount charged to costs and expenses includes the amount that was reclassified to regulatory assets/liabilities under different mechanisms as approved by the DCPSC and MDPSC.
(b)Write-offs, net of recoveries of individual accounts receivable.

296

Table of Contents

Delmarva Power & Light Company
(7) DPL
(a)Primarily charges for late payments.
(b)Write-off of individual accounts receivable.








Potomac Electric Power Company
Pepco
1.(i)Financial Statements:Statements (Item 8):
Report of Independent Registered Public Accounting Firm dated February 9, 201814, 2023 of PricewaterhouseCoopers LLP (PCAOB ID 238)
Statements of Operations and Comprehensive Income for the Years Ended December 31, 2017, 20162022, 2021 and 20152020
Statements of Cash Flows for the Years Ended December 31, 2017, 20162022, 2021 and 20152020
Balance Sheets at December 31, 20172022 and 20162021
Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2017, 20162022, 2021 and 20152020
Notes to Consolidated Financial Statements
2.(ii)Financial Statement Schedules:Schedule:
Schedule II – II—Valuation and Qualifying Accounts for the Years Ended December 31, 2022, 2021, and 2020
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

297

Table of Contents
Potomac Electric
Delmarva Power & Light Company
Schedule II – Valuation and Qualifying Accounts
Column A Column B Column C Column D Column E
    Additions and adjustments    
Description Balance at
Beginning
of Period
 Charged to
Costs and
Expenses
 Charged
to Other
Accounts
 Deductions Balance at
End
of Period
  (in millions)
For the year ended December 31, 2017          
Allowance for uncollectible accounts $29
 $8
 $2
(a)  
$18
(b)  
$21
Deferred tax valuation allowance 
 
 
 
  

Reserve for obsolete materials 1
 1
 
 1
  
1
For the year ended December 31, 2016          
Allowance for uncollectible accounts $17
 $29
 $3
(a)  
$20
(b)  
$29
Deferred tax valuation allowance 
 
 
 
  

Reserve for obsolete materials 
 3
 
 2
  
1
For the year ended December 31, 2015          
Allowance for uncollectible accounts $16
 $20
 $1
(a)  
$20
(b)  
$17
Deferred tax valuation allowance 
 
 
 
 
Reserve for obsolete materials 
 
 
 
 
Column AColumn BColumn CColumn DColumn E
Additions and adjustments
DescriptionBalance at
Beginning
of Period
Charged to
Costs and
Expenses
Charged
to Other
Accounts
DeductionsBalance at
End
of Period
(In millions)
For the year ended December 31, 2022
Allowance for credit losses$26 $13 (a)$(2)$(b)$28 
Deferred tax valuation allowance31 — 

— 32 
For the year ended December 31, 2021
Allowance for credit losses$31 $(a)$(1)$10 (b)$26 
Deferred tax valuation allowance— — 31 (c)— 31 
For the year ended December 31, 2020
Allowance for credit losses$15 $16 (a)$$(b)$31 
__________
(a)The amount charged to costs and expenses includes the amount that was reclassified to regulatory assets/liabilities under different mechanisms as approved by the DEPSC and MDPSC.
(b)Write-offs, net of recoveries of individual accounts receivable.
(c)DPL recorded a full valuation allowance against Delaware net operating losses carryforwards due to a change in Delaware tax law. See Note 13 — Income Taxes of the Combined Notes to Consolidated Financial Statements for additional information on the valuation allowance.
298

Atlantic City Electric Company and Subsidiary Company
(8) ACE
(a)Primarily charges for late payments.
(b)Write-off of individual accounts receivable.











Delmarva Power & Light Company
DPL
1.(i)Financial Statements:Statements (Item 8):
Report of Independent Registered Public Accounting Firm dated February 9, 201814, 2023 of PricewaterhouseCoopers LLP (PCAOB ID 238)
Consolidated Statements of Operations and Comprehensive Income (Loss) for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Consolidated Balance Sheets at December 31, 20172022 and 20162021
Consolidated Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2017, 20162022, 2021, and 20152020
Notes to Consolidated Financial Statements
2.(ii)Financial Statement Schedules:Schedule:
Schedule II – II—Valuation and Qualifying Accounts for the Years Ended December 31, 2022, 2021, and 2020
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

299

Table of Contents
Delmarva Power & Light Company
Schedule II – Valuation and Qualifying Accounts
Column A Column B Column C Column D Column E
    Additions and adjustments    
Description Balance at
Beginning
of Period
 Charged to
Costs and
Expenses
 Charged
to Other
Accounts
 Deductions Balance at
End
of Period
  (in millions)
For the year ended December 31, 2017          
Allowance for uncollectible accounts $24
 $3
 $2
(a)  
$13
(b)  
$16
Deferred tax valuation allowance 
 
 
 
  

Reserve for obsolete materials 
 1
 
 1
  

For the year ended December 31, 2016          
Allowance for uncollectible accounts $17
 $23
 $2
(a)  
$18
(b)  
$24
Deferred tax valuation allowance 
 
 
 
  

Reserve for obsolete materials 
 1
 
 1
  

For the year ended December 31, 2015          
Allowance for uncollectible accounts $11
 $20
 $2
(a)  
$16
(b)  
$17
Deferred tax valuation allowance 
 
 
 
 
Reserve for obsolete materials 
 
 
 
 
__________
(a)Primarily charges for late payments.
(b)Write-off of individual accounts receivable.



Atlantic City Electric Company and Subsidiary Company
ACE
1.Financial Statements:
Report of Independent Registered Public Accounting Firm dated February 9, 2018 of PricewaterhouseCoopers LLP
Consolidated Statements of Operations and Comprehensive Income (Loss) for the Years Ended December 31, 2017, 2016 and 2015
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 2016 and 2015
Consolidated Balance Sheets at December 31, 2017 and 2016
Consolidated Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2017, 2016 and 2015
Notes to Consolidated Financial Statements
2.Financial Statement Schedules:
Schedule II – Valuation and Qualifying Accounts
Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto












Atlantic City Electric Company and Subsidiary Company
Schedule II – Valuation and Qualifying Accounts
Column A Column B Column C Column D Column E
    Additions and adjustments    
Description Balance at
Beginning
of Period
 Charged to
Costs and
Expenses
 Charged
to Other
Accounts
 Deductions Balance at
End
of Period
  (in millions)
For the year ended December 31, 2017          
Allowance for uncollectible accounts $27
 $8
 $2
(a)  
$19
(b)  
$18
Deferred tax valuation allowance 
 
 
 
  

Reserve for obsolete materials 1
 
 
 
  
1
For the year ended December 31, 2016          
Allowance for uncollectible accounts $17
 $32
 $2
(a)  
$24
(b)  
$27
Deferred tax valuation allowance 
 
 
 
  

Reserve for obsolete materials 
 1
 
 
  
1
For the year ended December 31, 2015          
Allowance for uncollectible accounts $9
 $18
 $2
(a)  
$12
(b)  
$17
Deferred tax valuation allowance 
 
 
 
 
Reserve for obsolete materials 
 
 
 
 
Column AColumn BColumn CColumn DColumn E
Additions and adjustments
DescriptionBalance at
Beginning
of Period
Charged to
Costs and
Expenses
Charged
to Other
Accounts
DeductionsBalance at
End
of Period
(In millions)
For the year ended December 31, 2022
Allowance for credit losses$64 $20 (a)$(2)$27 (b)$55 
Reserve for obsolete materials— — — 
For the year ended December 31, 2021
Allowance for credit losses$43 $21 (a)$$(b)$64 
Reserve for obsolete materials— — — 
For the year ended December 31, 2020
Allowance for credit losses$18 $28 (a)$$(b)$43 
Reserve for obsolete materials— — — 
__________
(a)Primarily charges for late payments.
(b)Write-off of individual accounts receivable.

(a)ACE is allowed to recover from or refund to customers the difference between its annual credit loss expense and the amounts collected in rates annually through the Societal Benefits Charge. The amount charged to costs and expenses includes the amount that was reclassified to regulatory assets/liabilities under such mechanism. See Note 3 – Regulatory Matters of the Combined Notes to Consolidated Financial Statements for additional information.

(b)Write-offs, net of recoveries of individual accounts receivable.

300


Exhibits required by Item 601 of Regulation S-K:
Certain of the following exhibits are incorporated herein by reference under Rule 12b-32 of the Securities and Exchange Act of 1934, as amended. Certain other instruments which would otherwise be required to be listed below have not been so listed because such instruments do not authorize securities in an amount which exceeds 10% of the total assets of the applicable registrant and its subsidiaries on a consolidated basis and the relevant registrant agrees to furnish a copy of any such instrument to the Commission upon request.
(2) Plans of acquisition, reorganization, arrangement, liquidation, or succession
Exhibit No.Description
Location

(3) Articles of Incorporation and Bylaws
Exelon Corporation
Baltimore Gas and Electric Company
Exhibit No.DescriptionLocation
Articles of Restatement to the Charter of Baltimore Gas and Electric Company, LLC executedrestated as of January 1, 2001 (FileAugust 16, 1996
Articles of Amendment to the Charter of Baltimore Gas and Electric Company as of February 2, 2010
Amended and Restated Bylaws of Baltimore Gas and Electric Company dated August 3, 2020
301

Commonwealth Edison Company
Exhibit No.DescriptionLocation
Restated Articles of Incorporation of Commonwealth Edison Company Effective February 20, 1985, including Statements of Resolution Establishing Series, relating to the establishment of three new series of Commonwealth Edison Company preference stock known as the “$9.00 Cumulative Preference Stock,” the “$6.875 Cumulative Preference Stock” and the “$2.425 Cumulative Preference Stock” (File
PECO Energy Company
Pepco Holdings LLC
Exhibit No.DescriptionLocation


Atlantic City Electric Company
Exhibit No.DescriptionLocation
Bylaws of Atlantic City Electric Company
Delmarva Power & Light Company
Exhibit No.DescriptionLocation
Restated Certificate and Articles of Incorporation of Delmarva Power & Light Company (as filed in Delaware and Virginia)
Bylaws of Delmarva Power & Light Company
302

Potomac Electric Power Company
Exhibit No.DescriptionLocation
Restated Articles of Incorporation of Potomac Electric Power Company (as filed in the District of Columbia)
Restated Articles of Incorporation and Articles of Restatement of Potomac Electric Power Company (as filed in Virginia)
Bylaws of Potomac Electric Power Company (File
(4) Instruments Defining the Rights of Securities Holders, Including Indentures
Exelon Corporation
Exhibit No.DescriptionLocation
Exelon Corporation Direct Stock Purchase Plan
4-1
First and Refunding Mortgage dated May 1, 1923 between The Counties Gas and Electric Company (predecessor to PECO Energy Company) and Fidelity Trust Company, Trustee (U.S. Bank National Association, as current successor trustee), (Registration No. 2-2281, Exhibit B-1).(a)
4-1-2Reserved.
4-1-3Supplemental Indentures to PECO Energy Company’s First and Refunding Mortgage:
Dated as ofFile ReferenceExhibit No.
Indenture dated May 1, 19272001 between Exelon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee
2-2881(a)
B-1(c)
March 1, 1937
2-2881(a)
B-1(g)
December 1, 1941
2-4863(a)
B-1(h)
November 1, 1944
2-5472(a)
B-1(i)
December 1, 1946
2-6821(a)
7-1(j)
September 1, 1957
2-13562(a)
2(b)-17
May 1, 1958
2-14020(a)
2(b)-18
March 1, 1968
2-34051(a)
2(b)-24
March 1, 1981
2-72802(a)
4-46
March 1, 1981
2-72802(a)
4-47
December 1, 19844-2(b)
March 1, 1993
1-01401, 1992 Form 10-K(a)
4(e)-86

May 1, 1993Form of $500,000,000 5.625% senior notes due 2035 dated June 9, 2005 issued by Exelon Corporation4(e)-88
May 1, 1993Indenture, dated as of June 17, 2014, between Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee4(e)-89
April 15, 2004First Supplemental Indenture, dated as of June 17, 2014, between Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee4-1-1
September 15, 2006Second Supplemental Indenture, dated April 3, 2017, between Exelon and The Bank of New York Mellon Trust Company, N.A., as trustee, to that certain Indenture (For Unsecured Subordinated Debt Securities), dated June 17, 2014
Indenture, dated as of June 11, 2015, among Exelon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee
First Supplemental Indenture, dated as of June 11, 2015, among Exelon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee
303

Exhibit No.DescriptionLocation
Second Supplemental Indenture, dated as of December 2, 2015, among Exelon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee
Third Supplemental Indenture, dated as of April 7, 2016, among Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as trustee
Fourth Supplemental Indenture, dated as of April 1, 2020, among Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as trustee
Fifth Supplemental Indenture, dated as of March 7, 2022, among Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as trustee
Description of Exelon Securities
Baltimore Gas and Electric Company
Exhibit No.DescriptionLocation
Form of 3.350% Note due 2023 issued June 17, 2013 by Baltimore Gas and Electric Company
Indenture dated as of July 24, 2006 between Baltimore Gas and Electric Company and Deutsche Bank Trust Company Americas, as trustee
Form of 2.400% notes due 2026 issued August 18, 2016 by Baltimore Gas and Electric Company
Form of 3.500% Note due 2046 issued August 18, 2016 by Baltimore Gas and Electric Company
Form of 3.750% Note due 2047 issued August 24, 2017 by Baltimore Gas and Electric Company
Form of 4.550% Note due 2052 issued June 6, 2022 by Baltimore Gas and Electric Company
Indenture, dated as of September 1, 2019, between Baltimore Gas and Electric Company and U.S. Bank National Association, as trustee



304

Commonwealth Edison Company
Exhibit No.DescriptionLocation
4-14March 1, 2007
March 15, 2009
September 1, 2012
September 15, 2013
September 1, 2014

September 15, 2015

September 1, 2016
September 1, 2017
Exhibit No.Description
4-3
Mortgage of Commonwealth Edison Company to Illinois Merchants Trust Company, Trustee (BNY Mellon Trust Company of Illinois, as current successor Trustee), dated July 1, 1923, as supplemented and amended by Supplemental Indenture thereto dated August 1, 1944. (Registration1944
Registration No. 2-60201, Form S-7, Exhibit 2-1).2-1(a)
4-3-1Supplemental Indentures to Commonwealth Edison Company Mortgage.
Dated as ofFile ReferenceExhibit No.
August 1, 1946
2-60201, Form S-7(a)
2-1
April 1, 1953
2-60201, Form S-7(a)
2-1
March 31, 1967
2-60201, Form S-7(a)
2-1
April 1, 1967
2-60201, Form S-7(a)
2-1
February 28, 1969
2-60201, Form S-7(a)
2-1
May 29, 1970
2-60201, Form S-7(a)
2-1
June 1, 1971
2-60201, Form S-7(a)
2-1

DatedSupplemental Indenture to Commonwealth Edison Company Mortgage dated as of January 13, 2003No. 001-01839, Form 8-K dated February 13, 2003, Exhibit No.4.4
April 1, 1972
2-60201, Form S-7(a)
2-1
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of February 22, 2006
May 31, 1972
2-60201, Form S-7(a)
2-1
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of March 1, 2007
June 15, 1973
2-60201, Form S-7(a)
2-1
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of December 20, 2007
May 31, 1974
2-60201, Form S-7(a)
2-1
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of September 17, 2012
June 13, 1975
2-60201, Form S-7(a)
2-1
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of August 1, 2013
May 28, 1976
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of January 2, 20142-1
June 3, 1977Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of October 28, 2014
2-60201, Form S-7(a)
2-1
May 17, 1978
2-99665, Form S-3(a)
4-3
August 31, 1978
2-99665, Form S-3(a)
4-3
June 18, 1979
2-99665, Form S-3(a)
4-3
June 20, 1980
2-99665, Form S-3(a)
4-3
April 16, 1981
2-99665, Form S-3(a)
4-3
April 30, 1982
2-99665, Form S-3(a)
4-3
April 15, 1983
2-99665, Form S-3(a)
4-3
April 13, 1984
2-99665, Form S-3(a)
4-3
April 15, 1985
2-99665, Form S-3(a)
4-3
April 15, 1986
33-6879, Form S-3(a)
4-9
January 13, 2003
February 22, 2006
August 1, 2006
September 15, 2006
March 1, 2007
August 30, 2007
December 20, 2007
March 10, 2008
July 12, 2010
August 22, 2011

DatedSupplemental Indenture to Commonwealth Edison Company Mortgage dated as ofFile ReferenceExhibit No.
September 17, 2012
August 1, 2013
January 2, 2014
October 28, 2014
February 18, 2015
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of November 4, 2015
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of June 15, 2016
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of August 9, 2017
305

Exhibit No.DescriptionLocation
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of February 6, 2018
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of July 26, 2018
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of February 7, 2019
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of October 29, 2019
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of February 10, 2020
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of February 16, 2021
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of August 2, 2021
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of February 23, 2022
Supplemental Indenture to Commonwealth Edison Company Mortgage dated as of December 21, 2022
Instrument of Resignation, Appointment and Acceptance dated as of February 20, 2002, under the provisions of the Mortgage of Commonwealth Edison Company dated July 1, 1923, and Indentures Supplemental thereto, regarding corporate trustee (File
4-4Description of ComEd Securities




306

PECO Energy Company
Exhibit No.DescriptionLocation
4-18First and Refunding Mortgage dated May 1, 19871923 between Commonwealth EdisonThe Counties Gas and Electric Company (predecessor to PECO Energy Company) and Citibank, N.A.Fidelity Trust Company, Trustee (U.S. Bank National Association, as current successor trustee), Trustee relating to Notes (Registration
Registration No. 33-20619, Form S-3,2-2281, Exhibit 4-13).B-1(a)
4-18-1Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of December 1, 1941
Registration No. 2-4863, Exhibit B-1(h)(a)
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of September 15, 2006
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of March 1, 2007
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of September 1, 2012
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of September 1, 2014
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of September 15, 2015
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of September 1, 2017
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of February 1, 2018
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of September 1, 2018
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of August 15, 2019
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of June 1, 2020
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of February 15, 2021
307

Exhibit No.DescriptionLocation
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of September 1, 2021
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of May 1, 2022
Supplemental Indenture to PECO Energy Company’s First and Refunding Mortgage dated as of August 1, 2022
Indenture to Subordinated Debt Securities dated as of June 24, 2003 between PECO Energy Company, as Issuer, and U.S. Bank National Association, as Trustee (File

Exhibit No.Description

Exhibit No.Description
4-27
Indenture dated July 1, 1985, between Baltimore Gas and Electric Company and The Bank of New York (Successor to Mercantile-Safe Deposit and Trust Company), Trustee. (Designated as Exhibit 4(a) to the Registration Statement on Form S-3, File No. 2-98443); as supplemented by Supplemental Indentures dated as of October 1, 1987 (Designated as Exhibit 4(a) to the Current Report on Form 8-K, dated November 13, 1987, File No. 1-1910) and as of January 26, 1993 (Designated as Exhibit 4(b) to the Current Report on Form 8-K, dated January 29, 1993, filed by Baltimore Gas and Electric Company, File No. 1-1910).(a)

Exhibit No.Description




4-42
Mortgage and Deed of Trust, dated July 1, 1936, of Potomac Electric Power Company to The Bank of New York Mellon as successor trustee, securing First Mortgage Bonds of Potomac Electric Power Company, and Supplemental Indenture dated July 1, 1936 (File No. 2-2232, Registration Statement dated June 19, 1936, Exhibit B-4)(a)
4-42-1Supplemental Indentures to Potomac Electric Power Company Mortgage.
Dated asDescription of PECO SecuritiesFile ReferenceExhibit No.
December 10, 1939B

308

Atlantic City Electric Company
Exhibit No.DescriptionLocation
4-23Mortgage and Deed of Trust, dated January 15, 1937, between Atlantic City Electric Company and The Bank of New York Mellon (formerly Irving Trust Company), as trustee
2-66280, Registration Statement dated December 21, 1979, Exhibit 2(a)(a)
4-23-1DatedSupplemental Indenture to Atlantic City Electric Company Mortgage dated as of June 1, 1949File ReferenceExhibit No.
July 15, 1942
2-5032, Amendment No 2. To2-66280, Registration Statement 8/24/42(a)
B-1
October 15, 1947
Form 8-K , 12/8/47(a)
A
dated December 31, 1948
Form 10-K, 4/13/4921, 1979, Exhibit 2(b)(a)
A-2
December 31, 1949
Form 8-K, 2/8/50(a)
(a)-1
February 15, 1951
Form 8-K, 3/9/51(a)
(a)
February 16, 1953
Form 8-K, 3/5/53(a)
(a)-1
March 15, 1954 and March 15, 1955
2-11627, Registration Statement, 5/2/55(a)
4-B
March 15, 1956
Form 10-K, 4/4/56(a)
C
April 1, 1957
2-13884, Registration Statement, 2/5/58(a)
4-B
May 1, 1958
2-14518, Registration Statement, 11/10/58(a)
2-B
May 1, 1959
2-15027, Amendment No. 1 to Registration Statement, 5/13/59(a)
4-B
May 2, 1960
2-17286, Registration Statement, 11/9/60(a)
2-B
April 3, 1961
Form 10-K, 4/24/61(a)
A-1
May 1, 1962
2-21037, Registration Statement, 1/25/63(a)
2-B
May 1, 1963
2-21961, Registration Statement, 12/19/63(a)
4-B
April 23, 1964
2-22344, Registration Statement, 4/24/64(a)
2-B
May 3, 1965
2-24655, Registration Statement, 3/16/66(a)
2-B
June 1, 1966
Form 10-K, 4/11/67(a)
1
April 28, 1967
2-26356, Post-Effective Amendment No. 1 to Registration Statement, 5/3/67(a)
2-B
July 3, 1967
2-28080, Registration Statement, 1/25/68(a)
2-B
May 1, 1968
2-31896, Registration Statement, 2/28/69(a)
2-B
June 16, 1969
2-36094, Registration Statement, 1/27/70(a)
2-B

4-23-2DatedSupplemental Indenture to Atlantic City Electric Company Mortgage dated as of March 1, 1991File ReferenceExhibit No.
May 15, 1970
2-38038, Registration Statement, 7/27/70(a)
2-B
September 1, 1971
2-45591, Registration Statement, 9/1/72(a)
2-C
June 17, 1981
Amendment No. 1 to Form 8-A, 6/18/81(a)
2
November 1, 1985
Form 8-A, 11/1/85(a)
2B
September 16, 1987
33-18229, Registration Statement, 10/30/87(a)
4-B
May 1, 1989
33-29382, Registration Statement, 6/16/89(a)
4-C
May 21, 1991
Form 10-K 3/27/92(a)
4
May 7, 1992
Form 10-K, 3/26/93(a)
4
September 1, 1992
Form 10-K, 3/26/93(a)
4
November 1, 1992
Form 10-K, 3/26/93(a)
4
July 1, 1993
33-49973, Registration Statement, 8/11/93(a)
4.4
February 10, 1994
February 11, 1994
October 2, 1997
November 17, 2003
March 16, 2004
May 24, 2005
April 1, 2006
November 13, 2007
March 24, 2008
December 3, 2008
dated March 28, 2012
001-01072, Form 8-K, 3/29/121991, Exhibit 4(d)(1)(a)
March 11, 2013
November 14, 2013

DatedSupplemental Indenture to Atlantic City Electric Company Mortgage dated as of April 1, 2004File ReferenceExhibit No.
March 11, 2014
March 9, 2015
May 15, 2017
Exhibit No.Description
4-43
Supplemental Indenture to Atlantic City Electric Company Mortgage dated as of July 28, 1989, between PotomacMarch 8, 2006
Supplemental Indenture to Atlantic City Electric Power Company and The BankMortgage dated as of New York Mellon, Trustee, with respectMarch 29, 2011
Supplemental Indenture to Medium-Term Note Program (FileAtlantic City Electric Company Mortgage dated as of August 18, 2014
Supplemental Indenture to Atlantic City Electric Company Mortgage dated as of December 1, 2015
Supplemental Indenture to Atlantic City Electric Company Mortgage dated as of October 9, 2018
Supplemental Indenture to Atlantic City Electric Company Mortgage dated as of May 2, 2019
Supplemental Indenture to Atlantic City Electric Company Mortgage dated as of June 1, 2020
Supplemental Indenture to Atlantic City Electric Company Mortgage dated as of November 17, 2003 between Potomac Electric Power Company and The Bank of New York Mellon (File1, 2021
4-45Pollution Control Facilities Loan Agreement, dated as of June 1, 2020, between The Pollution Control Financing Authority of Salem County and Atlantic City Electric


309

Delmarva Power & Light Company
Exhibit No.DescriptionLocation
4-25Mortgage and Deed of Trust of Delaware Power & Light Company to The Bank of New York Mellon (ultimate successor to the New York Trust Company), as trustee, dated as of October 1, 1943, and copies of the First through Sixty-Eighth Supplemental Indentures thereto (File No.
33-1763, Registration Statement dated November 27, 1985, Exhibit 4-A)4-(A)(a)
4-45-1Supplemental Indentures to Delmarva Power & Light Company Mortgage.
Dated as ofFile ReferenceExhibit No.
January 1, 1986
33-39756, Registration Statement, 4/03/91(a)
4-B
June 1, 1986
33-24955, Registration Statement, 10/13/88(a)
4-B
January 1, 1987
33-24955, Registration Statement, 10/13/88(a)
4-B
September 1, 1987
33-24955, Registration Statement, 10/13/88(a)
4-B
October 1, 1987
33-24955, Registration Statement, 10/13/88(a)
4-B
January 1, 1988
33-24955, Registration Statement, 10/13/88(a)
4-B
December 1, 1988
33-39756, Registration Statement, 4/03/91(a)
4-D
January 1, 1989
33-39756, Registration Statement, 4/03/91(a)
4-E
March 1, 1990
33-39756, Registration Statement, 4/03/91(a)
4-F
January 1, 1991
33-46892, Registration Statement, 4/1/92(a)
4-E
July 1, 1991
33-46892, Registration Statement, 4/1/92(a)
4-F

4-25-1
DatedSupplemental Indenture to Delmarva Power & Light Company Mortgage dated as ofFile ReferenceExhibit No.
February 1, 1992
33-49750, Registration Statement, 7/17/92(a)
4
May 1, 1992
33-57652, Registration Statement, 1/29/93(a)
4-G
October 1, 19921993
33-63582, Registration Statement, 5/28/93(a)
4-H
January 1, 1993
33-50453, Registration Statement, 10/1/93(a)
99
June 1, 1993
33-53855, Registration Statement 1/30/95(a)
4-J
July 1, 1993
33-53855, Registration Statement, 1/30/95(a)
4-K
October 1, 1993
33-53855, Registration Statement, 1/30/95(a)
4-L
dated January 1, 1994
33-53855, Registration Statement, 1/30/9530, 1995, Exhibit 4-L(a)
4-M
October 1, 1994
33-53855, Registration Statement, 1/30/95(a)
4-N
January 1, 1995
333-00505, Registration Statement, 1/29/96(a)
4-K
June 1, 1995
333-00505, Registration Statement, 1/29/96(a)
4-L
January 1, 1996
333-24059, Registration Statement, 3/27/97(a)
4-L
January 1, 1997
January 1, 1998
January 1, 1999
January 1, 2000
January 1, 2001
January 1, 2002
January 1, 2003
January 1, 2004
January 1, 2005

4-25-2
DatedSupplemental Indenture to Delmarva Power & Light Company Mortgage dated as of October 1, 1994File ReferenceExhibit No.
January 1, 2006
33-53855, Registration Statement dated January 1, 2007
001-01405, Form 10-K, 2/24/1230, 1995, Exhibit 4-N(a)
January 1, 2008
January 1, 2009
September 22, 2009
January 1, 2010
January 1, 2011
May 2, 2011
January 1, 2012
June 19, 2012
January 1, 2013
November 7, 2013
January 1, 2014
June 2, 2014
January 1, 2015
May 4, 2015
January 1, 2016Filed herewith.
December 5, 2016
April 5, 2017
Exhibit No.Description
4-46
Supplemental Indenture betweento Delmarva Power & Light Company and The Bank of New York Mellon Trust Company, N.A. (ultimate successor to Manufacturers Hanover Trust Company), as trustee,Mortgage dated as of November 1, 1988 (File7, 2013
4-47
Mortgage and Deed of Trust, dated January 15, 1937, between Atlantic City Electric Company and The Bank of New York Mellon (formerly Irving Trust Company), as trustee (File No. 2-66280, Registration Statement dated December 21, 1979, Exhibit 2(a))(a)
4-47-1Supplemental Indentures to Atlantic City Electric Company Mortgage.

DatedSupplemental Indenture to Delmarva Power & Light Company Mortgage dated as of June 2, 2014File ReferenceExhibit No.
June 1, 1949
2-66280, Registration Statement, 12/21/79(a)
2(b)
July 1, 1950
2-66280, Registration Statement, 12/21/79(a)
2(b)
November 1, 1950
2-66280, Registration Statement, 12/21/79(a)
2(b)
March 1, 1952
2-66280, Registration Statement, 12/21/79(a)
2(b)
January 1, 1953
2-66280, Registration Statement, 12/21/79(a)
2(b)
March 1, 1954
2-66280, Registration Statement, 12/21/79(a)
2(b)
March 1, 1955
2-66280, Registration Statement, 12/21/79(a)
2(b)
January 1, 1957
2-66280, Registration Statement, 12/21/79(a)
2(b)
April 1, 1958
2-66280, Registration Statement, 12/21/79(a)
2(b)
April 1, 1959
2-66280, Registration Statement, 12/21/79(a)
2(b)
March 1, 1961
2-66280, Registration Statement, 12/21/79(a)
2(b)
July 1, 1962
2-66280, Registration Statement, 12/21/79(a)
2(b)
March 1, 1963
2-66280, Registration Statement, 12/21/79(a)
2(b)
February 1, 1966
2-66280, Registration Statement, 12/21/79(a)
2(b)
April 1, 1970
2-66280, Registration Statement, 12/21/79(a)
2(b)
September 1, 1970
2-66280, Registration Statement, 12/21/79(a)
2(b)
May 1, 1971
2-66280, Registration Statement, 12/21/79(a)
2(b)
April 1, 1972
2-66280, Registration Statement, 12/21/79(a)
2(b)
File No. 001-01405, Form 8-K dated June 1, 1973
2-66280, Registration Statement, 12/21/79(a)3, 2014, Exhibit 4.3
2(b)
January 1, 1975
2-66280, Registration Statement, 12/21/79(a)
2(b)
May 1, 1975
2-66280, Registration Statement, 12/21/79(a)
2(b)

DatedSupplemental Indenture to Delmarva Power & Light Company Mortgage dated as of May 4, 2015File ReferenceExhibit No.
December 1, 1976
2-66280, Registration Statement, 12/21/79(a)
2(b)
January 1, 19804(e)
8-K dated May 1, 1981
Form 10-Q, 8/10/81(a)
4(a)
November 1, 1983
Form 10-K, 3/30/84(a)
4(d)
April 15, 1984
Form 10-Q, 5/14/84(a)
4(a)
July 15, 1984
Form 10-Q, 8/13/84(a)
4(a)
October 1, 1985
Form 10-Q, 11/12/85(a)
4
May 1, 1986
Form 10-Q, 5/12/86(a)
4
July 15, 1987
Form 10-K, 3/28/88(a)
4(d)
October 1, 1989
Form 10-Q for quarter ended 9/30/89(A)
4(a)
March 1, 1991
Form 10-K, 3/28/91(a)
4(d)(1)
May 1, 1992
33-49279, Registration Statement, 1/6/93(a)
4(b)
January 1, 1993
August 1, 1993Supplemental Indenture to Delmarva Power & Light Company Mortgage dated as of December 5, 2016
Form 10-Q, 11/12/93(a)
4(a)
September 1, 1993
Form 10-Q, 11/12/93(a)
4(b)
November 1, 1993
Form 10-K, 3/29/94(a)
4(c)(1)
June 1, 1994
Form 10-Q, 8/14/94(a)
4(a)
October 1, 1994
Form 10-Q, 11/14/94(a)
4(a)
November 1, 1994
Form 10-K, 3/21/95(a)
4(c)(1)
March 1, 1997
AprilSupplemental Indenture to Delmarva Power & Light Company Mortgage dated as of June 1, 20042018
August 10, 2004Supplemental Indenture to Delmarva Power & Light Company Mortgage dated as of May 2, 2019
March 8, 2006Supplemental Indenture to Delmarva Power & Light Company Mortgage dated as of January 1, 2020
November 6, 2008Supplemental Indenture to Delmarva Power & Light Company Mortgage dated as of June 1, 2020
March 29, 2011Supplemental Indenture to Delmarva Power & Light Company Mortgage dated as of February 15, 2021
August 18, 2014Supplemental Indenture to Delmarva Power & Light Company Mortgage dated as of February 1, 2022
December 1, 2015
310

Exhibit No.DescriptionLocation
Gas Facilities Loan Agreement, dated as of July 1, 2020, between Atlantic CityThe Delaware Economic Development Authority and Delmarva Power & Light Company
Potomac Electric Power Company
Exhibit No.DescriptionLocation
4-27Mortgage and Deed of Trust, dated July 1, 1936, of Potomac Electric Power Company andto The Bank of New York Mellon as successor trustee, (Filesecuring First Mortgage Bonds of Potomac Electric Power Company, and Supplemental Indenture dated July 1, 1936
File No. 001-03559,2-2232, Registration Statement dated June 19, 1936, Exhibit B-4(a)
4-27-1Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of December 10, 1939
8-K dated January 3, 1940, Exhibit B(a)
Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of March 16, 2004

Exhibit No.Description
Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of November 13, 2007
Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of March 24, 2008
Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of December 19, 2002 between Atlantic City Electric Transition Funding LLC and The Bank of New York Mellon, as trustee (File3, 2008
November 14, 2013
311

Exhibit No.DescriptionLocation
Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of May 2, 2019
Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of February 12, 2020
Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of February 15, 2021
Supplemental Indenture to Potomac Electric Power Company Mortgage dated as of March 1, 2022
Exempt Facilities Loan Agreement dated as of February 6, 2014, among ExGen Renewables I Holding, LLCJune 1, 2019 between the Maryland Economic Development Corporation and Barclays Bank PLC (FilePotomac Electric Power Company

(10) Material Contracts
Exelon Corporation
312

Exhibit No.DescriptionLocation
10-4Reserved.












Exhibit No.Description


Exelon Corporation 2020 Long-Term Incentive Plan (Effective April 28, 2020)
Exelon Corporation 2020 Long-Term Incentive Plan Prospectus, dated May 27, 2020
Form of Restricted Stock Unit Award Notice and Agreement under the Exelon Corporation 2020 Long-Term Incentive Plan
Form of Performance Share Award Notice and Agreement under the Exelon Corporation 2020 Long-Term Incentive Plan
Exelon Corporation Senior Management Severance Plan (As Amended and Restated Effective April 1, 2013).* (File



313

Commonwealth Edison Company
Baltimore Gas and Electric Company
Exhibit No.DescriptionLocation
Credit Agreement for $600,000,000 dated February 1, 2022, between Baltimore Gas and Electric Company and various financial institutions
PECO Energy Company

Exhibit No.Description


314

Atlantic City Electric Company, Potomac Electric Power Company, Delmarva Power & Light Company
Exhibit No.DescriptionLocation

Exhibit No.Description
10-64 - 10-70Reserved.







Exhibit No.Description




(14) Code of Ethics

Exelon Corporation
Exhibit No.Description

Location
Exhibit No.Description


315

Exhibit No.Description
Power of Attorney (Commonwealth Edison Company)
24-23Reserved.
24-24Reserved.

24-27
Power of Attorney (Pepco Holdings LLC)
316

Exhibit No.Description
Power of Attorney (Potomac Electric Power Company)
Power of Attorney (Delmarva Power & Light Company)
Power of Attorney (Atlantic City Electric Company)

Certifications Pursuant to Rule 13a-14(a) and 15d-14(a) of the Securities and Exchange Act of 1934 as to the Annual Report on Form 10-K for the year ended December 31, 20172022 filed by the following officers for the following registrants:

Exhibit No.
Description
317

Exhibit No.Description
Certifications Pursuant to Section 1350 of Chapter 63 of Title 18 United States Code as to the Annual Report on Form 10-K for the year ended December 31, 20172022 filed by the following officers for the following registrants:
Exhibit No.Description
101.INSXBRL Instance
101.SCHXBRL Taxonomy Extension Schema

101.INS
101.CALInline XBRL Taxonomy Extension Calculation
101.DEFInstance Document - the instance document does not appear in the Interactive Data File because its XBRL Taxonomy Extension Definition
101.LABtags are embedded within the Inline XBRL Taxonomy Extension Labels
101.PREXBRL Taxonomy Extension Presentation
__________
*Compensatory plan or arrangements in which directors or officers of the applicable registrant participate and which are not available to all employees.
(a)These filings are not available electronically on the SEC website as they were filed in paper previous to the electronic system that is currently in place.



document.
101.SCHInline XBRL Taxonomy Extension Schema Document.
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document.
101.LABInline XBRL Taxonomy Extension Labels Linkbase Document.
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document.
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

__________
* Compensatory plan or arrangements in which directors or officers of the applicable registrant participate and which are not available to all employees.
(a)These filings are not available electronically on the SEC website as they were filed in paper previous to the electronic system that is currently in place.
318

ITEM 16.FORM 10-K SUMMARY
All Registrants
Registrants may voluntarily include a summary of information required by Form 10-K under this Item 16. The Registrants have elected not to include such summary information.

319


SIGNATURES
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th14th day of February, 2018.2023.
 

EXELON CORPORATION
By:/s/ CHRISTOPHER M. CRANECALVIN G. BUTLER, JR.
Name:Christopher M. CraneCalvin G. Butler, Jr.
Title:President and Chief Executive Officer
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th14th day of February, 2018.2023.
 
SignatureTitle
/s/ CHRISTOPHER M. CRANECALVIN G. BUTLER, JR.President, and Chief Executive Officer (Principal Executive Officer) and Director
Christopher M. CraneCalvin G. Butler, Jr.
/s/    JONATHAN W. THAYERJEANNE M. JONESSenior Executive Vice President and Chief Financial Officer (Principal Financial Officer)
Jonathan W. ThayerJeanne M. Jones
/s/ DUANE M. DESPARTEJOSEPH R. TRPIKSenior Vice President and Corporate Controller (Principal Accounting Officer)
Duane M. DesParteJoseph R. Trpik
 
This annual report has also been signed below by Thomas S. O'Neil,Gayle E. Littleton, Attorney-in-Fact, on behalf of the following Directors on the date indicated:
 
Anthony K. Anderson
Ann C. Berzin
Christopher M. Crane
Yves C. de Balmann
Nicholas DeBenedictis
Nancy L. Gioia
Linda P. Jojo


Paul Joskow
Robert J. Lawless
Richard W. Mies
John W. Rogers, Jr.
Mayo A. Shattuck III
Stephen D. Steinour
By:Anthony K. Anderson/s/ THOMAS S. O'NEILLFebruary 9, 2018Linda P. Jojo
Name:Ann C. BerzinPaul Joskow
W. Paul BowersThomas S. O'NeillJohn F. Young
Marjorie Rodgers Cheshire
Carlos Gutierrez

By:/s/ GAYLE E. LITTLETONFebruary 14, 2023
Name:Gayle E. Littleton
320

SIGNATURES
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th14th day of February, 2018.2023.
EXELON GENERATIONCOMMONWEALTH EDISON COMPANY LLC
By:/s/ KENNETH W. CORNEWGIL C. QUINIONES
Name:Kenneth W. CornewGil C. Quiniones
Title:President and Chief Executive Officer
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th14th day of February, 2018.2023.
 
SignatureTitle
/s/ KENNETH W. CORNEWGIL C. QUINIONESPresident and Chief Executive Officer (Principal Executive Officer) and Director
Kenneth W. CornewGil C. Quiniones
/s/ BRYAN P. WRIGHTELISABETH J. GRAHAMSenior Vice President, and Chief Financial Officer and Treasurer (Principal Financial Officer)
Bryan P. WrightElisabeth J. Graham
/s/    MATTHEW N. BAUERSTEVEN J. CICHOCKIVice President and ControllerDirector, Accounting (Principal Accounting Officer)
Matthew N. Bauer

Steven J. Cichocki

This annual report has also been signed below by Gil C. Quiniones, Attorney-in-Fact, on behalf of the following Directors on the date indicated:
Calvin G. Butler, Jr.Zaldwaynaka Scott
Ricardo EstradaSmita Shah
By:/s/ GIL C. QUINIONESFebruary 14, 2023
Name:Gil C. Quiniones
321

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th14th day of February, 2018.2023.
COMMONWEALTH EDISONPECO ENERGY COMPANY
By:/s/ ANNE R. PRAMAGGIOREMICHAEL A. INNOCENZO
Name:Anne R. PramaggioreMichael A. Innocenzo
Title:President and Chief Executive Officer
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th14th day of February, 2018.2023.
SignatureTitle
/s/ ANNE R. PRAMAGGIOREMICHAEL A. INNOCENZOPresident, and Chief Executive Officer (Principal Executive Officer) and Director
Anne R. PramaggioreMichael A. Innocenzo
/s/ JOSEPH R. TRPIK, JR.MARISSA HUMPHREYSenior Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)
Joseph R. Trpik, Jr.Marissa Humphrey
/s/ GERALD J. KOZELCAROLINE FULGINITIVice President and ControllerDirector, Accounting (Principal Accounting Officer)
Gerald J. KozelCaroline Fulginiti
/s/ CHRISTOPHER M. CRANEChairman and Director
Christopher M. Crane
This annual report has also been signed below by Anne R. Pramaggiore,Michael A. Innocenzo, Attorney-in-Fact, on behalf of the following Directors on the date indicated:
James W. Compton
Christopher M. Crane
A. Steven Crown
Nicholas DeBenedictis

Peter V. Fazio, Jr.
Michael H. Moskow
Denis P. O'Brien
By:Nicholas Bertram/s/ ANNECharisse R. PRAMAGGIOREFebruary 9, 2018Lillie
Name:Calvin G. Butler, Jr.Sharmaine Matlock-Turner
Nelson A. DiazAnne R. PramaggioreMichael Nutter
John S. Grady

By:/s/ MICHAEL A. INNOCENZOFebruary 14, 2023
Name:Michael A. Innocenzo
322

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th14th day of February, 2018.2023.
PECO ENERGYBALTIMORE GAS AND ELECTRIC COMPANY
By:/s/ CRAIG L. ADAMSCARIM V. KHOUZAMI
Name:Craig L. AdamsCarim V. Khouzami
Title:President and Chief Executive Officer
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th14th day of February, 2018.2023.
SignatureTitle
/s/ CRAIG L. ADAMSCARIM V. KHOUZAMIPresident, and Chief Executive Officer (Principal Executive Officer) and Director
Craig L. AdamsCarim V. Khouzami
/s/ PHILLIP S. BARNETTDAVID M. VAHOSSenior Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)
Phillip S. BarnettDavid M. Vahos
/s/ SCOTT A. BAILEYJASON T. JONESVice President and ControllerDirector, Accounting (Principal Accounting Officer)
Scott A. BaileyJason T. Jones
/s/ CHRISTOPHER M. CRANEChairman and Director
Christopher M. Crane
This annual report has also been signed below by Craig L. Adams,Carim V. Khouzami, Attorney-in-Fact, on behalf of the following Directors on the date indicated:
Christopher M. CraneRosemarie B. Greco
M. Walter D’AlessioCharisse R. Lillie
Nicholas DeBenedictisDenis P. O'Brien
Nelson A. Diaz
By:Calvin G. Butler, Jr./s/ CRAIG L. ADAMSFebruary 9, 2018Byron Marchant
Name:James R. CurtissTim Regan
Keith LeeCraig L. AdamsAmy Seto
Rachel Garbow MonroeMaria Harris Tildon

By:/s/ CARIM V. KHOUZAMIFebruary 14, 2023
Name:Carim V. Khouzami
323

SIGNATURES
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th14th day of February, 2018.2023.
BALTIMORE GAS AND ELECTRIC COMPANYPEPCO HOLDINGS LLC
By:/s/ CALVIN G. BUTLER, JR.J. TYLER ANTHONY
Name:Calvin G. Butler, Jr.J. Tyler Anthony
Title:President and Chief Executive Officer
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th14th day of February, 2018.2023.
 
SignatureTitle
/s/ CALVIN G. BUTLER, JR.J. TYLER ANTHONYPresident, Chief Executive Officer (Principal Executive Officer) and Director
Calvin G. Butler, Jr.J. Tyler Anthony
/s/ DAVID M. VAHOSPHILLIP S. BARNETTSenior Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)
David M. VahosPhillip S. Barnett
/s/ ANDREW W. HOLMESJULIE E. GIESEVice President and ControllerDirector, Accounting (Principal Accounting Officer)
Andrew W. HolmesJulie E. Giese
/s/ CHRISTOPHER M. CRANEChairman and Director
Christopher M. Crane
 
This annual report has also been signed below by Calvin G. Butler, Jr.,J. Tyler Anthony, Attorney-in-Fact, on behalf of the following Directors on the date indicated:
Ann C. BerzinJoseph Haskins, Jr.
Christopher M. CraneDenis P. O'Brien
Michael E. CryorMichael D. Sullivan
James R. CurtissMaria Harris Tildon
By:Antoine Allen/s/ CALVIN G. BUTLER, JR.February 9, 2018Benjamin Wu
Name:Charlene DukesLinda W. Cropp
Calvin G. Butler, Jr.
Debra P. DiLorenzo
 

By:/s/ J. TYLER ANTHONYFebruary 14, 2023
Name:J. Tyler Anthony
324

SIGNATURES
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th14th day of February, 2018.2023.
PEPCO HOLDINGS LLCPOTOMAC ELECTRIC POWER COMPANY
By:/s/ DAVID M. VELAZQUEZJ. TYLER ANTHONY
Name:David M. VelazquezJ. Tyler Anthony
Title:President and Chief Executive Officer
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th14th day of February, 2018.2023.
 
SignatureTitle
/s/ DAVID M. VELAZQUEZJ. TYLER ANTHONYPresident, and Chief Executive Officer (Principal Executive Officer) and Director
David M. VelazquezJ. Tyler Anthony
/s/ DONNA J. KINZELPHILLIP S. BARNETT
Senior Vice President, Chief Financial Officer, and Treasurer (Principal Financial Officer)


and Director
Donna J. KinzelPhillip S. Barnett
/s/ ROBERT M. AIKENJULIE E. GIESEVice President and ControllerDirector, Accounting (Principal Accounting Officer)
Robert M. AikenJulie E. Giese
/s/ CHRISTOPHER M. CRANEChairman and Director
Christopher M. Crane
 
This annual report has also been signed below by David M. Velazquez,J. Tyler Anthony, Attorney-in-Fact, on behalf of the following Directors on the date indicated:
Christopher M. CraneErnest Dianastasis
Linda CroppDebra P. DiLorenzo
Michael E. CryorDenis P. O'Brien
By:Calvin G. Butler, Jr./s/ DAVID M. VELAZQUEZFebruary 9, 2018Tamla Olivier
Name:Rodney OddoyeAnne Bancroft
Elizabeth O'DonnellDavid M. Velazquez


By:/s/ J. TYLER ANTHONYFebruary 14, 2023
Name:J. Tyler Anthony

325

SIGNATURES
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th14th day of February, 2018.2023.
POTOMAC ELECTRICDELMARVA POWER & LIGHT COMPANY
By:/s/ DAVID M. VELAZQUEZJ. TYLER ANTHONY
Name:David M. VelazquezJ. Tyler Anthony
Title:President and Chief Executive Officer
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th14th day of February, 2018.2023.
 
SignatureTitle
/s/ DAVID M. VELAZQUEZJ. TYLER ANTHONYPresident, and Chief Executive Officer (Principal Executive Officer) and Director
David M. VelazquezJ. Tyler Anthony
/s/ DONNA J. KINZELPHILLIP S. BARNETTSenior Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)

Donna J. KinzelPhillip S. Barnett
/s/ ROBERT M. AIKENJULIE E. GIESEVice President and ControllerDirector, Accounting (Principal Accounting Officer)
Robert M. AikenJulie E. Giese
/s/ CHRISTOPHER M. CRANEChairman
Christopher M. Crane
 
This annual report has also been signed below by David M. Velazquez,J. Tyler Anthony, Attorney-in-Fact, on behalf of the following Directors on the date indicated:
J. Tyler AnthonyKevin M. McGowan
Christopher M. CraneDenis P. O'Brien
Donna J. Kinzel
By:Calvin G. Butler, Jr./s/ DAVID M. VELAZQUEZFebruary 9, 2018
Name:David M. Velazquez


By:/s/ J. TYLER ANTHONYFebruary 14, 2023
Name:J. Tyler Anthony

326

SIGNATURES
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th14th day of February, 2018.2023.
DELMARVA POWER & LIGHTATLANTIC CITY ELECTRIC COMPANY
By:/s/ DAVID M. VELAZQUEZJ. TYLER ANTHONY
Name:David M. VelazquezJ. Tyler Anthony
Title:President and Chief Executive Officer
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th14th day of February, 2018.2023.
 
SignatureTitle
/s/ DAVID M. VELAZQUEZJ. TYLER ANTHONYPresident, and Chief Executive Officer (Principal Executive Officer) and Director
David M. VelazquezJ. Tyler Anthony
/s/ DONNA J. KINZELPHILLIP S. BARNETTSenior Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)

Donna J. KinzelPhillip S. Barnett
/s/ ROBERT M. AIKENVice President and Controller (Principal Accounting Officer)
Robert M. Aiken
/s/ CHRISTOPHER M. CRANEChairman
Christopher M. Crane
This annual report has also been signed below by David M. Velazquez, Attorney-in-Fact, on behalf of the following Directors on the date indicated:
/s/ JULIE E. GIESEDirector, Accounting (Principal Accounting Officer)
Denis P. O'BrienJulie E. Giese
327
By:/s/ DAVID M. VELAZQUEZFebruary 9, 2018
Name:David M. Velazquez


SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois on the 9th day of February, 2018.
ATLANTIC CITY ELECTRIC COMPANY
By:/s/ DAVID M. VELAZQUEZ
Name:David M. Velazquez
Title:President and Chief Executive Officer
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated on the 9th day of February, 2018.
SignatureTitle
/s/ DAVID M. VELAZQUEZPresident and Chief Executive Officer (Principal Executive Officer)
David M. Velazquez
/s/ DONNA J. KINZELSenior Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)
Donna J. Kinzel
/s/ ROBERT M. AIKENVice President and Controller (Principal Accounting Officer)
Robert M. Aiken
/s/ CHRISTOPHER M. CRANEChairman
Christopher M. Crane


650