0001326160duk:DukeEnergyIndianaMembersrt:MinimumMemberduk:DerivativeFinancialInstrumentsLiabilitiesFinancialTransmissionRightsMemberus-gaap:MarketApproachValuationTechniqueMember2021-12-31



UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q
(Mark One)
ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2017March 31, 2022
OR
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
________________________
_________to_________
Commission file number
Registrant, State of Incorporation or Organization,

Address of Principal Executive Offices and Telephone Number
IRS Employer Identification No.Number
duk-20220331_g1.jpg
1-32853
DUKE ENERGY CORPORATION
(a Delaware corporation)
550 South Tryon
20-2777218
(a Delaware corporation)
526 South Church Street
Charlotte, North Carolina 28202-1803
704-382-3853
20-2777218
Commission file number1-4928Registrant, State of Incorporation or Organization, Address of Principal Executive Offices, Telephone Number and IRS Employer Identification NumberCommission file numberRegistrant, State of Incorporation or Organization, Address of Principal Executive Offices, Telephone Number and IRS Employer Identification Number
1-4928
DUKE ENERGY CAROLINAS, LLC
56-0205520
(a North Carolina limited liability company)
526 South Church Street
Charlotte, North Carolina 28202-1803
704-382-3853
56-0205520
1-3274
DUKE ENERGY FLORIDA, LLC
(a Florida limited liability company)
299 First Avenue North
St. Petersburg, Florida 33701
704-382-3853
59-0247770
1-15929
PROGRESS ENERGY, INC.
56-2155481
(a North Carolina corporation)
410 South Wilmington Street
Raleigh, North Carolina 27601-1748
704-382-3853
56-2155481
1-1232
DUKE ENERGY OHIO, INC.
(an Ohio corporation)
139 East Fourth Street
Cincinnati, Ohio 45202
704-382-3853
31-0240030
1-3382
DUKE ENERGY PROGRESS, LLC
56-0165465
(a North Carolina limited liability company)
410 South Wilmington Street
Raleigh, North Carolina 27601-1748
704-382-3853
56-0165465
1-3543
1-3274DUKE ENERGY FLORIDA, LLC59-0247770
(a Florida limited liability company)
299 First Avenue North
St. Petersburg, Florida 33701
704-382-3853
1-1232DUKE ENERGY OHIO, INC.31-0240030
(an Ohio corporation)
139 East Fourth Street
Cincinnati, Ohio 45202
704-382-3853
1-3543DUKE ENERGY INDIANA, LLC35-0594457
(an Indiana limited liability company)
1000 East Main Street
Plainfield, Indiana 46168
704-382-3853
35-0594457
1-6196
PIEDMONT NATURAL GAS COMPANY, INC.
56-0556998
(a North Carolina corporation)
4720 Piedmont Row Drive
Charlotte, North Carolina 28210
704-364-3120
56-0556998





SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:
Name of each exchange on
RegistrantTitle of each classTrading symbolswhich registered
Duke Energy    Common Stock, $0.001 par value    DUK    New York Stock Exchange LLC

Duke Energy    5.625% Junior Subordinated Debentures due    DUKB    New York Stock Exchange LLC
September 15, 2078
Duke Energy    Depositary Shares, each representing a 1/1,000th    DUK PR A    New York Stock Exchange LLC
interest in a share of 5.75% Series A Cumulative
Redeemable Perpetual Preferred Stock, par value
$0.001 per share
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.
Duke Energy Corporation (Duke Energy)
Yesx
No ¨
NoDuke Energy Florida, LLC (Duke Energy Florida)
Yesx
No¨
Duke Energy Carolinas, LLC (Duke Energy Carolinas)
Yesx
No ¨
NoDuke Energy Ohio, Inc. (Duke Energy Ohio)
Yesx
No¨
Progress Energy, Inc. (Progress Energy)
Yesx
No ¨
NoDuke Energy Indiana, LLC (Duke Energy Indiana)
Yesx
No¨
Duke Energy Progress, LLC (Duke Energy Progress)
Yesx
No ¨
NoPiedmont Natural Gas Company, Inc. (Piedmont)
Yesx
No¨


Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, 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).
Duke Energy
Yesx
No ¨
NoDuke Energy Florida
Yesx
No¨
Duke Energy Carolinas
Yesx
No ¨
NoDuke Energy Ohio
Yesx
No¨
Progress Energy
Yesx
No ¨
NoDuke Energy Indiana
Yesx
No¨
Duke Energy Progress
Yesx
No ¨
NoPiedmont
Yesx
Piedmont
YesNo¨
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.
Duke Energy
Large accelerated filerx
Accelerated Filer
Accelerated filer¨
Non-accelerated filer ¨Filer
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Carolinas
Large accelerated filer ¨
Accelerated Filer
Accelerated filer¨
Non-accelerated filerxFiler
Smaller reporting company¨
Emerging Growth Company ¨growth company
Progress Energy
Large accelerated filer ¨
Accelerated Filer
Accelerated filer¨
Non-accelerated filerxFiler
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Progress
Large accelerated filer ¨
Accelerated Filer
Accelerated filer¨
Non-accelerated filerxFiler
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Florida
Large accelerated filer ¨
Accelerated Filer
Accelerated filer¨
Non-accelerated filerxFiler
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Ohio
Large accelerated filer ¨
Accelerated Filer
Accelerated filer¨
Non-accelerated filerxFiler
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Indiana
Large accelerated filer ¨
Accelerated Filer
Accelerated filer¨
Non-accelerated filerxFiler
Smaller reporting company¨
Emerging Growth Company ¨growth company
Piedmont
Large accelerated filer ¨
Accelerated Filer
Accelerated filer¨
Non-accelerated filerxFiler
Smaller reporting company¨
Emerging Growth Company ¨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. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Duke Energy
Yes¨
Nox
NoDuke Energy Florida
Yes¨
Nox
Duke Energy Carolinas
Yes¨
Nox
NoDuke Energy Ohio
Yes¨
Nox
Progress Energy
Yes¨
Nox
NoDuke Energy Indiana
Yes¨
Nox
Duke Energy Progress
Yes¨
Nox
NoPiedmont
Yes ¨
Piedmont
YesNox
Number of shares of Commoncommon stock outstanding at SeptemberApril 30, 2017:
2022:
RegistrantDescriptionShares
Duke EnergyCommon stock, $0.001 par value769,900,482
RegistrantDescriptionShares
Duke EnergyCommon stock, $0.001 par value699,975,614



This combined Form 10-Q is filed separately by eight registrants: Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont (collectively the Duke Energy Registrants). Information contained herein relating to any individual registrant is filed by such registrant solely on its own behalf. Each registrant makes no representation as to information relating exclusively to the other registrants.
Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont meet the conditions set forth in General Instructions H(1)(a) and (b) of Form 10-Q and are therefore filing this form with the reduced disclosure format specified in General Instructions H(2) of Form 10-Q.






TABLE OF CONTENTS
PART I. FINANCIAL INFORMATION
Piedmont Natural Gas Company, Inc. Financial Statements
Note 1 – Organization and Basis of Presentation
Note 2 – Acquisitions and DispositionsBusiness Segments
Note 3 – Business SegmentsRegulatory Matters
Note 4 – Regulatory Matters
Note 5 – Commitments and Contingencies
Note 65 – Debt and Credit Facilities
Note 76Asset Retirement ObligationsGoodwill
Note 8 – Goodwill and Intangible Assets
Note 97 – Related Party Transactions
Note 108 – Derivatives and Hedging
Note 119 – Investments in Debt and Equity Securities
Note 1210 – Fair Value Measurements
Note 1311 – Variable Interest Entities
Note 1412Common StockRevenue
Note 1513Stock-Based CompensationStockholders' Equity
Note 1614 – Employee Benefit Plans
Note 1715 – Income Taxes
Note 1816 – Subsequent Events
PART II. OTHER INFORMATION






FORWARD-LOOKING STATEMENTS

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION
This document includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are based on management’s beliefs and assumptions and can often be identified by terms and phrases that include “anticipate,” “believe,” “intend,” “estimate,” “expect,” “continue,” “should,” “could,” “may,” “plan,” “project,” “predict,” “will,” “potential,” “forecast,” “target,” “guidance,” “outlook” or other similar terminology. Various factors may cause actual results to be materially different than the suggested outcomes within forward-looking statements; accordingly, there is no assurance that such results will be realized. These factors include, but are not limited to:
The impact of the COVID-19 pandemic;
State, federal and foreign legislative and regulatory initiatives, including costs of compliance with existing and future environmental requirements, including those related to climate change, as well as rulings that affect cost and investment recovery or have an impact on rate structures or market prices;
The extent and timing of costs and liabilities to comply with federal and state laws, regulations and legal requirements related to coal ash remediation, including amounts for required closure of certain ash impoundments, are uncertain and difficult to estimate;
The ability to recover eligible costs, including amounts associated with coal ash impoundment retirement obligations, asset retirement and construction costs related to carbon emissions reductions, and costs related to significant weather events, and to earn an adequate return on investment through rate case proceedings and the regulatory process;
The costs of decommissioning nuclear facilities could prove to be more extensive than amounts estimated and all costs may not be fully recoverable through the regulatory process;
Costs and effects of legal and administrative proceedings, settlements, investigations and claims;
Industrial, commercial and residential growth or decline in service territories or customer bases resulting from sustained downturns of the economy and the economic health of our service territories or variations in customer usage patterns, including energy efficiency efforts, natural gas building and appliance electrification, and use of alternative energy sources, such as self-generation and distributed generation technologies;
Federal and state regulations, laws and other efforts designed to promote and expand the use of energy efficiency measures, natural gas electrification, and distributed generation technologies, such as private solar and battery storage, in Duke Energy service territories could result in a reduced number of customers, excess generation resources as well as stranded costs;
Advancements in technology;
Additional competition in electric and natural gas markets and continued industry consolidation;
The influence of weather and other natural phenomena on operations, including the economic, operational and other effects of severe storms, hurricanes, droughts, earthquakes and tornadoes, including extreme weather associated with climate change;
Changing investor, customer and other stakeholder expectations and demands including heightened emphasis on environmental, social and governance concerns;
The ability to successfully operate electric generating facilities and deliver electricity to customers including direct or indirect effects to the company resulting from an incident that affects the U.S. electric grid or generating resources;
Operational interruptions to our natural gas distribution and transmission activities;
The availability of adequate interstate pipeline transportation capacity and natural gas supply;
The impact on facilities and business from a terrorist attack, cybersecurity threats, data security breaches, operational accidents, information technology failures or other catastrophic events, such as fires, explosions, pandemic health events or other similar occurrences;
The inherent risks associated with the operation of nuclear facilities, including environmental, health, safety, regulatory and financial risks, including the financial stability of third-party service providers;
The timing and extent of changes in commodity prices and interest rates and the ability to recover such costs through the regulatory process, where appropriate, and their impact on liquidity positions and the value of underlying assets;
The results of financing efforts, including the ability to obtain financing on favorable terms, which can be affected by various factors, including credit ratings, interest rate fluctuations, compliance with debt covenants and conditions, an individual utility's generation mix, and general market and economic conditions;
Credit ratings of the Duke Energy Registrants may be different from what is expected;
Declines in the market prices of equity and fixed-income securities and resultant cash funding requirements for defined benefit pension plans, other post-retirement benefit plans and nuclear decommissioning trust funds;
Construction and development risks associated with the completion of the Duke Energy Registrants’ capital investment projects, including risks related to financing, obtaining and complying with terms of permits, meeting construction budgets and schedules and satisfying operating and environmental performance standards, as well as the ability to recover costs from customers in a timely manner, or at all;
Changes in rules for regional transmission organizations, including changes in rate designs and new and evolving capacity markets, and risks related to obligations created by the default of other participants;
The ability to control operation and maintenance costs;
The level of creditworthiness of counterparties to transactions;


State, federal and foreign legislative and regulatory initiatives, including costs of compliance with existing and future environmental requirements, including those related to climate change, as well as rulings that affect cost and investment recovery or have an impact on rate structures or market prices;
FORWARD-LOOKING STATEMENTS
The extent and timing of costs and liabilities to comply with federal and state laws, regulations and legal requirements related to coal ash remediation, including amounts for required closure of certain ash impoundments, are uncertain and difficult to estimate;
The ability to recover eligible costs, including amounts associated with coal ash impoundment retirement obligations and costs related to significant weather events, and to earn an adequate return on investment through rate case proceedings and the regulatory process;
The costs of decommissioning Crystal River Unit 3 and other nuclear facilities could prove to be more extensive than amounts estimated and all costs may not be fully recoverable through the regulatory process;
Costs and effects of legal and administrative proceedings, settlements, investigations and claims;
Industrial, commercial and residential growth or decline in service territories or customer bases resulting from sustained downturns of the economy and the economic health of our service territories or variations in customer usage patterns, including energy efficiency efforts and use of alternative energy sources, such as self-generation and distributed generation technologies;
Federal and state regulations, laws and other efforts designed to promote and expand the use of energy efficiency measures and distributed generation technologies, such as private solar and battery storage, in Duke Energy service territories could result in customers leaving the electric distribution system, excess generation resources as well as stranded costs;
Advancements in technology;
Additional competition in electric and natural gas markets and continued industry consolidation;
The influence of weather and other natural phenomena on operations, including the economic, operational and other effects of severe storms, hurricanes, droughts, earthquakes and tornadoes, including extreme weather associated with climate change;
The ability to successfully operate electric generating facilities and deliver electricity to customers including direct or indirect effects to the company resulting from an incident that affects the U.S. electric grid or generating resources;
The ability to complete necessary or desirable pipeline expansion or infrastructure projects in our natural gas business;
Operational interruptions to our natural gas distribution and transmission activities;
The availability of adequate interstate pipeline transportation capacity and natural gas supply;
The impact on facilities and business from a terrorist attack, cybersecurity threats, data security breaches and other catastrophic events, such as fires, explosions, pandemic health events or other similar occurrences;
The inherent risks associated with the operation and potential construction of nuclear facilities, including environmental, health, safety, regulatory and financial risks, including the financial stability of third-party service providers;
The timing and extent of changes in commodity prices and interest rates and the ability to recover such costs through the regulatory process, where appropriate, and their impact on liquidity positions and the value of underlying assets;
The results of financing efforts, including the ability to obtain financing on favorable terms, which can be affected by various factors, including credit ratings, interest rate fluctuations and general economic conditions;
Credit ratings of the Duke Energy Registrants may be different from what is expected;
Declines in the market prices of equity and fixed-income securities and resultant cash funding requirements for defined benefit pension plans, other post-retirement benefit plans and nuclear decommissioning trust funds;
Construction and development risks associated with the completion of the Duke Energy Registrants’ capital investment projects, including risks related to financing, obtaining and complying with terms of permits, meeting construction budgets and schedules and satisfying operating and environmental performance standards, as well as the ability to recover costs from customers in a timely manner, or at all;
Changes in rules for regional transmission organizations, including changes in rate designs and new and evolving capacity markets, and risks related to obligations created by the default of other participants;
The ability to control operation and maintenance costs;
The level of creditworthiness of counterparties to transactions;
Employee workforce factors, including the potential inability to attract and retain key personnel;
The ability of subsidiaries to pay dividends or distributions to Duke Energy Corporation holding company (the Parent);
The performance of projects undertaken by our nonregulated businesses and the success of efforts to invest in and develop new opportunities;
The effect of accounting pronouncements issued periodically by accounting standard-setting bodies;



Substantial revision to the U.S. tax code, such as changes to the corporate tax rate or material change in the deductibility of interest;
The impact of potential goodwill impairments;
The ability to successfully complete future merger, acquisition or divestiture plans;
The ability to successfully integrate the natural gas businesses following the acquisition of Piedmont Natural Gas Company, Inc. and realize anticipated benefits; and
The ability to implement our business strategy.
The ability to obtain adequate insurance at acceptable costs;
Employee workforce factors, including the potential inability to attract and retain key personnel;
The ability of subsidiaries to pay dividends or distributions to Duke Energy Corporation holding company (the Parent);
The performance of projects undertaken by our nonregulated businesses and the success of efforts to invest in and develop new opportunities;
The effect of accounting pronouncements issued periodically by accounting standard-setting bodies;
The impact of U.S. tax legislation to our financial condition, results of operations or cash flows and our credit ratings;
The impacts from potential impairments of goodwill or equity method investment carrying values;
Asset or business acquisitions and dispositions, including our ability to successfully consummate the second closing of the minority investment in Duke Energy Indiana, may not yield the anticipated benefits;
The actions of activist shareholders could disrupt our operations, impact our ability to execute on our business strategy, or cause fluctuations in the trading price of our common stock; and
The ability to implement our business strategy, including its carbon emission reduction goals.
Additional risks and uncertainties are identified and discussed in the Duke Energy Registrants' reports filed with the SEC and available at the SEC's website at www.sec.gov.sec.gov. In light of these risks, uncertainties and assumptions, the events described in the forward-looking statements might not occur or might occur to a different extent or at a different time than described. Forward-looking statements speak only as of the date they are made and the Duke Energy Registrants expressly disclaim an obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.



GLOSSARY OF TERMS

Glossary of Terms
The following terms or acronyms used in this Form 10-Q are defined below:
Term or AcronymDefinition
2017 SettlementSecond Revised and Restated Settlement Agreement in 2017 among Duke Energy Florida, the Florida Office of Public Counsel and other customer representatives, which replaces and supplants the 2013 Settlement
2021 SettlementSettlement Agreement in 2021 among Duke Energy Florida, the Florida Office of Public Counsel, the Florida Industrial Power Users Group, White Springs Agricultural Chemicals, Inc. d/b/a PSC Phosphate and NUCOR Steel Florida, Inc.
ACPAtlantic Coast Pipeline, LLC, a limited liability company owned by Dominion Energy, Inc. and Duke Energy
AFSAvailable for Sale
AFUDCAllowance for funds used during construction
AROAsset retirement obligations
BisonBison Insurance Company Limited
CCRCoal Combustion Residuals
the companyDuke Energy Corporation and its subsidiaries
COVID-19Coronavirus Disease 2019
CRCCinergy Receivables Company, LLC
Crystal River Unit 3Crystal River Unit 3 Nuclear Plant
DEFPFDuke Energy Florida Project Finance, LLC
DEFRDuke Energy Florida Receivables, LLC
DEPRDuke Energy Progress Receivables, LLC
DERFDuke Energy Receivables Finance Company, LLC
DOEDepartment of Energy
Duke EnergyDuke Energy Corporation (collectively with its subsidiaries)
Duke Energy OhioDuke Energy Ohio, Inc.
Duke Energy ProgressDuke Energy Progress, LLC
Duke Energy CarolinasDuke Energy Carolinas, LLC
Duke Energy FloridaDuke Energy Florida, LLC
Duke Energy IndianaDuke Energy Indiana, LLC
Duke Energy RegistrantsDuke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont
EDITExcess deferred income tax
EPSEarnings Per Share
ERCOTElectric Reliability Council of Texas
ETREffective tax rate
Exchange ActSecurities Exchange Act of 1934
FERCFederal Energy Regulatory Commission
FPSCFlorida Public Service Commission
FTRFinancial transmission rights
GAAPGenerally accepted accounting principles in the U.S.
GAAP Reported EarningsNet Income Available to Duke Energy Corporation Common Stockholders
GAAP Reported EPSBasic Earnings Per Share Available to Duke Energy Corporation common stockholders
GICGIC Private Limited, Singapore's sovereign wealth fund and an experienced investor in U.S. infrastructure
GWhGigawatt-hours
IRSInternal Revenue Service



GLOSSARY OF TERMS
PART I. FINANCIAL INFORMATION

Investment TrustsNDTF investments and grantor trusts of Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana
IURCIndiana Utility Regulatory Commission
KPSCKentucky Public Service Commission
LLCLimited Liability Company
MGPManufactured gas plant
MGP SettlementStipulation and Recommendation filed jointly by Duke Energy Ohio the staff of the PUCO, the Office of the Ohio Consumers' Counsel and the Ohio Energy Group on August 31, 2021
MWMegawatt
MWhMegawatt-hour
NCUCNorth Carolina Utilities Commission
NDTFNuclear decommissioning trust funds
NPNSNormal purchase/normal sale
OPEBOther Post-Retirement Benefit Obligations
OVECOhio Valley Electric Corporation
PBRPerformance-Based Regulation
PiedmontPiedmont Natural Gas Company, Inc.
PJMPennsylvania-New Jersey-Maryland Interconnection
PPAPurchase Power Agreement
Progress EnergyProgress Energy, Inc.
PSCSCPublic Service Commission of South Carolina
PUCOPublic Utilities Commission of Ohio
RTORegional Transmission Organization
Subsidiary RegistrantsDuke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont
the Tax ActTax Cuts and Jobs Act
TPUCTennessee Public Utility Commission
U.S.United States
VIEVariable Interest Entity




FINANCIAL STATEMENTS

ITEM 1. FINANCIAL STATEMENTS


DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Operations
(Unaudited)
Three Months Ended
March 31,
(in millions, except per share amounts)20222021
Operating Revenues
Regulated electric$5,933 $5,219 
Regulated natural gas1,002 749 
Nonregulated electric and other197 182 
Total operating revenues7,132 6,150 
Operating Expenses
Fuel used in electric generation and purchased power1,817 1,443 
Cost of natural gas481 276 
Operation, maintenance and other1,630 1,402 
Depreciation and amortization1,320 1,226 
Property and other taxes392 353 
Impairment of assets and other charges215 — 
Total operating expenses5,855 4,700 
Gains on Sales of Other Assets and Other, net2 — 
Operating Income1,279 1,450 
Other Income and Expenses
Equity in earnings (losses) of unconsolidated affiliates25 (17)
Other income and expenses, net89 127 
Total other income and expenses114 110 
Interest Expense587 535 
Income Before Income Taxes806 1,025 
Income Tax (Benefit) Expense(14)84 
Net Income820 941 
Add: Net Loss Attributable to Noncontrolling Interests37 51 
Net Income Attributable to Duke Energy Corporation857 992 
Less: Preferred Dividends39 39 
Net Income Available to Duke Energy Corporation Common Stockholders$818 $953 
Earnings Per Share – Basic and Diluted
Net income available to Duke Energy Corporation common stockholders
Basic and Diluted$1.08 $1.25 
Weighted Average Shares Outstanding
Basic and Diluted770 769 

See Notes to Condensed Consolidated Financial Statements
9

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions, except per-share amounts)2017
 2016
 2017
 2016
Operating Revenues       
Regulated electric$6,091
 $6,303
 $16,122
 $16,321
Regulated natural gas247
 89
 1,168
 355
Nonregulated electric and other144
 184
 476
 490
Total operating revenues6,482
 6,576
 17,766
 17,166
Operating Expenses    
 
Fuel used in electric generation and purchased power1,863
 2,031
 4,853
 5,140
Cost of natural gas68
 6
 402
 64
Operation, maintenance and other1,442
 1,460
 4,282
 4,227
Depreciation and amortization900
 819
 2,594
 2,402
Property and other taxes313
 302
 924
 887
Impairment charges207
 10
 216
 14
Total operating expenses4,793
 4,628
 13,271
 12,734
Gains on Sales of Other Assets and Other, net6
 6
 24
 21
Operating Income1,695
 1,954
 4,519
 4,453
Other Income and Expenses    

 

Equity in earnings (losses) of unconsolidated affiliates36
 (60) 101
 (37)
Other income and expenses, net88
 86
 255
 237
Total other income and expenses124
 26
 356
 200
Interest Expense498
 464
 1,475
 1,431
Income From Continuing Operations Before Income Taxes1,321
 1,516
 3,400
 3,222
Income Tax Expense from Continuing Operations364
 515
 1,035
 1,020
Income From Continuing Operations957
 1,001
 2,365
 2,202
(Loss) Income From Discontinued Operations, net of tax(2) 180
 (4) 190
Net Income955
 1,181
 2,361
 2,392
Less: Net Income Attributable to Noncontrolling Interests1
 5
 5
 13
Net Income Attributable to Duke Energy Corporation$954
 $1,176
 $2,356
 $2,379
        
Earnings Per Share – Basic and Diluted       
Income from continuing operations attributable to Duke Energy Corporation common stockholders       
Basic$1.36
 $1.44
 $3.37
 $3.19
Diluted$1.36
 $1.44
 $3.37
 $3.18
Income (Loss) from discontinued operations attributable to Duke Energy Corporation common stockholders       
Basic$
 $0.26
 $(0.01) $0.26
Diluted$
 $0.26
 $(0.01) $0.26
Net income attributable to Duke Energy Corporation common stockholders       
Basic$1.36
 $1.70
 $3.36
 $3.45
Diluted$1.36
 $1.70
 $3.36
 $3.44
Weighted average shares outstanding       
Basic700
 689
 700
 689
Diluted700
 691
 700
 690

PART I

FINANCIAL STATEMENTS
DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Comprehensive Income
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
Net Income$820 $941 
Other Comprehensive Income (Loss), net of tax(a)
Pension and OPEB adjustments2 
Net unrealized gains on cash flow hedges113 29 
Reclassification into earnings from cash flow hedges5 
Unrealized losses on available-for-sale securities(13)(8)
Other Comprehensive Income, net of tax107 26 
Comprehensive Income927 967 
Add: Comprehensive Loss Attributable to Noncontrolling Interests29 44 
Comprehensive Income Attributable to Duke Energy956 1,011 
Less: Preferred Dividends39 39 
Comprehensive Income Available to Duke Energy Corporation Common Stockholders$917 $972 
(a)Net of income tax impacts of approximately $32 million and $8 million for the three months ended March 31, 2022, and 2021, respectively.
See Notes to Condensed Consolidated Financial Statements
10

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Net Income$955
 $1,181
 $2,361
 $2,392
Other Comprehensive Income, net of tax       
Foreign currency translation adjustments
 (12) 
 95
Pension and OPEB adjustments
 
 2
 2
Net unrealized gains (losses) on cash flow hedges2
 6
 (2) (19)
Reclassification into earnings from cash flow hedges(2) 1
 3
 3
Unrealized gains on available-for-sale securities2
 
 10
 7
Other Comprehensive Income (Loss), net of tax2
 (5) 13
 88
Comprehensive Income957
 1,176
 2,374
 2,480
Less: Comprehensive Income Attributable to Noncontrolling Interests1
 4
 5
 16
Comprehensive Income Attributable to Duke Energy Corporation$956
 $1,172
 $2,369
 $2,464


PART I

FINANCIAL STATEMENTS
DUKE ENERGY CORPORATION
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)March 31, 2022December 31, 2021
ASSETS
Current Assets
Cash and cash equivalents$853 $343 
Receivables (net of allowance for doubtful accounts of $68 at 2022 and $46 at 2021)1,148 1,173 
Receivables of VIEs (net of allowance for doubtful accounts of $72 at 2022 and $76 at 2021)2,590 2,437 
Inventory3,171 3,199 
Regulatory assets (includes $105 at 2022 and 2021 related to VIEs)2,334 2,150 
Other (includes $249 at 2022 and $256 at 2021 related to VIEs)946 638 
Total current assets11,042 9,940 
Property, Plant and Equipment
Cost163,700 161,819 
Accumulated depreciation and amortization(51,517)(50,555)
Facilities to be retired, net133 144 
Net property, plant and equipment112,316 111,408 
Other Noncurrent Assets
Goodwill19,303 19,303 
Regulatory assets (includes $1,800 at 2022 and $1,823 at 2021 related to VIEs)12,506 12,487 
Nuclear decommissioning trust funds9,827 10,401 
Operating lease right-of-use assets, net1,255 1,266 
Investments in equity method unconsolidated affiliates976 970 
Other (includes $111 at 2022 and $92 at 2021 related to VIEs)3,995 3,812 
Total other noncurrent assets47,862 48,239 
Total Assets$171,220 $169,587 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$3,175 $3,629 
Notes payable and commercial paper3,262 3,304 
Taxes accrued642 749 
Interest accrued575 533 
Current maturities of long-term debt (includes $395 at 2022 and $243 at 2021 related to VIEs)3,884 3,387 
Asset retirement obligations648 647 
Regulatory liabilities1,238 1,211 
Other2,001 2,471 
Total current liabilities15,425 15,931 
Long-Term Debt (includes $4,687 at 2022 and $4,854 at 2021 related to VIEs)62,196 60,448 
Other Noncurrent Liabilities
Deferred income taxes9,673 9,379 
Asset retirement obligations12,112 12,129 
Regulatory liabilities16,037 16,152 
Operating lease liabilities1,068 1,074 
Accrued pension and other post-retirement benefit costs832 855 
Investment tax credits831 833 
Other (includes $360 at 2022 and $319 at 2021 related to VIEs)1,794 1,650 
Total other noncurrent liabilities42,347 42,072 
Commitments and Contingencies00
Equity
Preferred stock, Series A, $0.001 par value, 40 million depositary shares authorized and outstanding at 2022 and 2021973 973 
Preferred stock, Series B, $0.001 par value, 1 million shares authorized and outstanding at 2022 and 2021989 989 
Common stock, $0.001 par value, 2 billion shares authorized; 770 million shares outstanding at 2022 and 769 million shares outstanding at 20211 
Additional paid-in capital44,364 44,371 
Retained earnings3,323 3,265 
Accumulated other comprehensive loss(204)(303)
Total Duke Energy Corporation stockholders' equity49,446 49,296 
Noncontrolling interests1,806 1,840 
Total equity51,252 51,136 
Total Liabilities and Equity$171,220 $169,587 

See Notes to Condensed Consolidated Financial Statements
11

(in millions)September 30, 2017 December 31, 2016
ASSETS   
Current Assets   
Cash and cash equivalents$282
 $392
Receivables (net of allowance for doubtful accounts of $13 at 2017 and $14 at 2016)528
 751
Receivables of VIEs (net of allowance for doubtful accounts of $54 at 2017 and 2016)2,089
 1,893
Inventory3,265
 3,522
Regulatory assets (includes $51 at 2017 and $50 at 2016 related to VIEs)1,109
 1,023
Other433
 458
Total current assets7,706
 8,039
Property, Plant and Equipment   
Cost125,582
 121,397
Accumulated depreciation and amortization(41,161) (39,406)
Generation facilities to be retired, net441
 529
Net property, plant and equipment84,862
 82,520
Other Noncurrent Assets   
Goodwill19,418
 19,425
Regulatory assets (includes $1,101 at 2017 and $1,142 at 2016 related to VIEs)13,367
 12,878
Nuclear decommissioning trust funds6,814
 6,205
Investments in equity method unconsolidated affiliates1,366
 925
Other2,792
 2,769
Total other noncurrent assets43,757
 42,202
Total Assets$136,325
 $132,761
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$2,645
 $2,994
Notes payable and commercial paper1,899
 2,487
Taxes accrued627
 384
Interest accrued538
 503
Current maturities of long-term debt (includes $215 at 2017 and $260 at 2016 related to VIEs)2,485
 2,319
Asset retirement obligations619
 411
Regulatory liabilities273
 409
Other1,734
 2,044
Total current liabilities10,820
 11,551
Long-Term Debt (includes $4,219 at 2017 and $3,587 at 2016 related to VIEs)48,929
 45,576
Other Noncurrent Liabilities   
Deferred income taxes15,058
 14,155
Asset retirement obligations9,586
 10,200
Regulatory liabilities7,027
 6,881
Accrued pension and other post-retirement benefit costs1,105
 1,111
Investment tax credits534
 493
Other1,624
 1,753
Total other noncurrent liabilities34,934
 34,593
Commitments and Contingencies

 

Equity   
Common stock, $0.001 par value, 2 billion shares authorized; 700 million shares outstanding at 2017 and 20161
 1
Additional paid-in capital38,774
 38,741
Retained earnings2,936
 2,384
Accumulated other comprehensive loss(80) (93)
Total Duke Energy Corporation stockholders' equity41,631
 41,033
Noncontrolling interests11
 8
Total equity41,642
 41,041
Total Liabilities and Equity$136,325
 $132,761

PART I

FINANCIAL STATEMENTS
DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income$820 $941 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)1,480 1,385 
Equity in (earnings) losses of unconsolidated affiliates(25)17 
Equity component of AFUDC(46)(42)
Impairment of assets and other charges215 — 
Deferred income taxes(11)86 
Payments for asset retirement obligations(119)(114)
Provision for rate refunds(31)— 
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions215 — 
Receivables5 377 
Inventory28 91 
Other current assets(327)(47)
Increase (decrease) in
Accounts payable(160)(467)
Taxes accrued(90)104 
Other current liabilities(269)(263)
Other assets(26)51 
Other liabilities136 (31)
Net cash provided by operating activities1,795 2,088 
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures(2,551)(2,215)
Contributions to equity method investments(17)— 
Purchases of debt and equity securities(1,516)(1,584)
Proceeds from sales and maturities of debt and equity securities1,530 1,601 
Disbursements to canceled equity method investments (855)
Other(145)(84)
Net cash used in investing activities(2,699)(3,137)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the:
Issuance of long-term debt3,506 608 
Issuance of common stock 
Payments for the redemption of long-term debt(1,215)(76)
Proceeds from the issuance of short-term debt with original maturities greater than 90 days 50 
Payments for the redemption of short-term debt with original maturities greater than 90 days(257)(909)
Notes payable and commercial paper213 2,046 
Contributions from noncontrolling interests23 303 
Dividends paid(799)(783)
Other(67)(59)
Net cash provided by financing activities1,404 1,185 
Net increase in cash, cash equivalents and restricted cash500 136 
Cash, cash equivalents and restricted cash at beginning of period520 556 
Cash, cash equivalents and restricted cash at end of period$1,020 $692 
Supplemental Disclosures:
Significant non-cash transactions:
Accrued capital expenditures$1,028 $921 

See Notes to Condensed Consolidated Financial Statements
12
 Nine Months Ended
 September 30,
(in millions)2017
 2016
CASH FLOWS FROM OPERATING ACTIVITIES   
Net income$2,361
 $2,392
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation, amortization and accretion (including amortization of nuclear fuel)2,990
 2,847
Equity component of AFUDC(175) (140)
Gains on sales of other assets(28) (27)
Impairment charges216
 279
Deferred income taxes1,016
 648
Equity in earnings of unconsolidated affiliates(101) (34)
Accrued pension and other post-retirement benefit costs19
 12
Contributions to qualified pension plans(8) 
Payments for asset retirement obligations(420) (443)
(Increase) decrease in   
Net realized and unrealized mark-to-market and hedging transactions4
 36
Receivables80
 (276)
Inventory248
 455
Other current assets(176) (163)
Increase (decrease) in   
Accounts payable(554) (207)
Taxes accrued233
 417
Other current liabilities(532) (157)
Other assets(160) (64)
Other liabilities(2) 36
Net cash provided by operating activities5,011
 5,611
CASH FLOWS FROM INVESTING ACTIVITIES   
Capital expenditures(5,841) (5,252)
Contributions to equity method investments(370) (198)
Purchases of available-for-sale securities(3,170) (4,048)
Proceeds from sales and maturities of available-for-sale securities3,199
 4,107
Change in restricted cash(29) (34)
Other(149) (130)
Net cash used in investing activities(6,360) (5,555)
CASH FLOWS FROM FINANCING ACTIVITIES   
Proceeds from the:   
Issuance of long-term debt5,710
 8,647
Issuance of common stock related to employee benefit plans
 7
Payments for the redemption of long-term debt(2,035) (988)
Proceeds from the issuance of short-term debt with original maturities greater than 90 days265
 1,424
Payments for the redemption of short-term debt with original maturities greater than 90 days(237) (492)
Notes payable and commercial paper(647) (1,579)
Dividends paid(1,825) (1,731)
Other8
 (22)
Net cash provided by financing activities1,239
 5,266
Changes in cash and cash equivalents associated with assets held for sale
 11
Net (decrease) increase in cash and cash equivalents(110) 5,333
Cash and cash equivalents at beginning of period392
 383
Cash and cash equivalents at end of period$282
 $5,716
Supplemental Disclosures:   
Significant non-cash transactions:   
Accrued capital expenditures$740
 $631


FINANCIAL STATEMENTS
PART I




DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
         Accumulated Other Comprehensive Loss      
             Net Unrealized
   Total
    
         Foreign
 Net
 (Losses) Gains
   Duke Energy
    
 Common
   Additional
   Currency
 Losses on
 on Available-
 Pension and
 Corporation
    
 Stock
 Common
 Paid-in
 Retained
 Translation
 Cash Flow
 for-Sale-
 OPEB
 Stockholders'
 Noncontrolling
 Total
(in millions)Shares
 Stock
 Capital
 Earnings
 Adjustments
 Hedges
 Securities
 Adjustments
 Equity
 Interests
 Equity
Balance at December 31, 2015688
 $1
 $37,968
 $2,564
 $(692) $(50) $(3) $(61) $39,727
 $44
 $39,771
Net income
 
 
 2,379
 
 
 
 
 2,379
 13
 2,392
Other comprehensive income (loss)
 
 
 
 92
 (16) 7
 2
 85
 3
 88
Common stock issuances, including dividend reinvestment and employee benefits1
 
 29
 
 
 
 
 
 29
 
 29
Common stock dividends
 
 
 (1,731) 
 
 
 
 (1,731) 
 (1,731)
Distributions to noncontrolling interest in subsidiaries
 
 
 
 
 
 
 
 
 (3) (3)
Balance at September 30, 2016689
 $1

$37,997

$3,212

$(600)
$(66)
$4

$(59)
$40,489

$57

$40,546
                      
Balance at December 31, 2016700
 $1
 $38,741
 $2,384
 $
 $(20) $(1) $(72) $41,033
 $8
 $41,041
Net income
 
 
 2,356
 
 
 
 
 2,356
 5
 2,361
Other comprehensive income
 
 
 
 
 1
 10
 2
 13
 
 13
Common stock issuances, including dividend reinvestment and employee benefits
 
 33
 
 
 
 
 
 33
 
 33
Common stock dividends
 
 
 (1,825) 
 
 
 
 (1,825) 
 (1,825)
Distributions to noncontrolling interest in subsidiaries
 
 
 
 
 
 
 
 
 (2) (2)
Other(a)

 
 
 21
 
 
 
 
 21
 
 21
Balance at September 30, 2017700

$1

$38,774

$2,936

$

$(19)
$9

$(70)
$41,631

$11

$41,642
(a)Cumulative-effect adjustment due to implementation of a new accounting standard related to stock-based compensation and the associated income taxes. See Note 1 for more information.
Three Months Ended March 31, 2021 and 2022
Accumulated Other Comprehensive
 (Loss) Income
Net UnrealizedTotal
Net GainsGains (Losses)Duke Energy
CommonAdditional(Losses) onon Available-Pension andCorporation
PreferredStockCommonPaid-inRetainedCash Flowfor-Sale-OPEBStockholders'NoncontrollingTotal
(in millions)StockSharesStockCapitalEarningsHedgesSecuritiesAdjustmentsEquityInterestsEquity
Balance at December 31, 2020$1,962 769 $$43,767 $2,471 $(167)$$(76)$47,964 $1,220 $49,184 
Net income (loss)— — — — 953 — — — 953 (51)902 
Other comprehensive income (loss)— — — — — 25 (8)19 26 
Common stock issuances, including dividend reinvestment and employee benefits— — — (3)— — — — (3)— (3)
Common stock dividends— — — — (744)— — — (744)— (744)
Contributions from noncontrolling interests, net of transaction costs(a)
— — — (3)— — — — (3)303 300 
Distributions to noncontrolling interest in subsidiaries— — — — — — — — — (7)(7)
Balance at March 31, 2021$1,962 769 $$43,761 $2,680 $(142)$(2)$(74)$48,186 $1,472 $49,658 
Balance at December 31, 2021$1,962 769 $$44,371 $3,265 $(232)$(2)$(69)$49,296 $1,840 $51,136 
Net income (loss)    818    818 (37)781 
Other comprehensive income (loss)     110 (13)2 99 8 107 
Common stock issuances, including dividend reinvestment and employee benefits 1  (7)    (7) (7)
Common stock dividends    (760)   (760) (760)
Contributions from noncontrolling interests, net of transaction costs(a)
         23 23 
Distributions to noncontrolling interest in subsidiaries         (28)(28)
Balance at March 31, 2022$1,962 770 $1 $44,364 $3,323 $(122)$(15)$(67)$49,446 $1,806 $51,252 
(a)Relates to tax equity financing activity in the Commercial Renewables segment.

See Notes to Condensed Consolidated Financial Statements
PART I13



FINANCIAL STATEMENTS

DUKE ENERGY CAROLINAS, LLC
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
Operating Revenues$1,888 $1,716 
Operating Expenses
Fuel used in electric generation and purchased power448 422 
Operation, maintenance and other512 441 
Depreciation and amortization379 359 
Property and other taxes93 83 
Impairment of assets and other charges3 — 
Total operating expenses1,435 1,305 
Operating Income453 411 
Other Income and Expenses, net55 48 
Interest Expense141 124 
Income Before Income Taxes367 335 
Income Tax Expense27 23 
Net Income and Comprehensive Income$340 $312 

See Notes to Condensed Consolidated Financial Statements
14

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Operating Revenues$2,136
 $2,226
 $5,581
 $5,641
Operating Expenses       
Fuel used in electric generation and purchased power531
 581
 1,394
 1,391
Operation, maintenance and other480
 493
 1,431
 1,481
Depreciation and amortization281
 268
 804
 802
Property and other taxes67
 68
 206
 206
Total operating expenses1,359
 1,410
 3,835
 3,880
Loss on Sales of Other Assets and Other, net
 (1) 
 (1)
Operating Income777
 815
 1,746
 1,760
Other Income and Expenses, net26
 39
 99
 121
Interest Expense108
 102
 314
 316
Income Before Income Taxes695
 752
 1,531
 1,565
Income Tax Expense229
 258
 522
 539
Net Income$466
 $494
 $1,009
 $1,026
Other Comprehensive Income, net of tax       
Reclassification into earnings from cash flow hedges
 
 1
 1
Comprehensive Income$466
 $494
 $1,010
 $1,027

PART I

FINANCIAL STATEMENTS
DUKE ENERGY CAROLINAS, LLC
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)March 31, 2022December 31, 2021
ASSETS
Current Assets
Cash and cash equivalents$4 $
Receivables (net of allowance for doubtful accounts of $22 at 2022 and $1 at 2021)234 300 
Receivables of VIEs (net of allowance for doubtful accounts of $30 at 2022 and $41 at 2021)858 844 
Receivables from affiliated companies134 190 
Notes receivable from affiliated companies492 — 
Inventory1,040 1,026 
Regulatory assets (includes $12 at 2022 and 2021 related to VIEs)652 544 
Other (includes $5 at 2022 and $0 at 2021 related to VIEs)246 95 
Total current assets3,660 3,006 
Property, Plant and Equipment
Cost52,423 51,874 
Accumulated depreciation and amortization(18,058)(17,854)
Facilities to be retired, net98 102 
Net property, plant and equipment34,463 34,122 
Other Noncurrent Assets
Regulatory assets (includes $217 at 2022 and $220 at 2021 related to VIEs)3,085 2,935 
Nuclear decommissioning trust funds5,441 5,759 
Operating lease right-of-use assets, net87 92 
Other1,297 1,248 
Total other noncurrent assets9,910 10,034 
Total Assets$48,033 $47,162 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$752 $988 
Accounts payable to affiliated companies267 266 
Notes payable to affiliated companies 226 
Taxes accrued124 274 
Interest accrued140 125 
Current maturities of long-term debt (includes $10 at 2022 and $5 at 2021 related to VIEs)1,367 362 
Asset retirement obligations251 249 
Regulatory liabilities465 487 
Other442 546 
Total current liabilities3,808 3,523 
Long-Term Debt (includes $722 at 2022 and $703 at 2021 related to VIEs)12,803 12,595 
Long-Term Debt Payable to Affiliated Companies300 318 
Other Noncurrent Liabilities
Deferred income taxes3,769 3,634 
Asset retirement obligations5,067 5,052 
Regulatory liabilities7,151 7,198 
Operating lease liabilities74 78 
Accrued pension and other post-retirement benefit costs48 50 
Investment tax credits286 287 
Other545 536 
Total other noncurrent liabilities16,940 16,835 
Commitments and Contingencies00
Equity
Member's equity14,188 13,897 
Accumulated other comprehensive loss(6)(6)
Total equity14,182 13,891 
Total Liabilities and Equity$48,033 $47,162 

See Notes to Condensed Consolidated Financial Statements
15

(in millions)September 30, 2017
 December 31, 2016
ASSETS   
Current Assets   
Cash and cash equivalents$18
 $14
Receivables (net of allowance for doubtful accounts of $2 at 2017 and 2016)180
 160
Receivables of VIEs (net of allowance for doubtful accounts of $7 at 2017 and 2016)691
 645
Receivables from affiliated companies146
 163
Notes receivable from affiliated companies
 66
Inventory1,000
 1,055
Regulatory assets237
 238
Other27
 37
Total current assets2,299
 2,378
Property, Plant and Equipment   
Cost42,321
 41,127
Accumulated depreciation and amortization(14,969) (14,365)
Net property, plant and equipment27,352
 26,762
Other Noncurrent Assets   
Regulatory assets3,077
 3,159
Nuclear decommissioning trust funds3,621
 3,273
Other910
 943
Total other noncurrent assets7,608
 7,375
Total Assets$37,259
 $36,515
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$726
 $833
Accounts payable to affiliated companies159
 247
Notes payable to affiliated companies468
 
Taxes accrued368
 143
Interest accrued135
 102
Current maturities of long-term debt705
 116
Asset retirement obligations304
 222
Regulatory liabilities105
 161
Other435
 468
Total current liabilities3,405

2,292
Long-Term Debt8,520
 9,187
Long-Term Debt Payable to Affiliated Companies300
 300
Other Noncurrent Liabilities   
Deferred income taxes6,796
 6,544
Asset retirement obligations3,297
 3,673
Regulatory liabilities2,884
 2,840
Accrued pension and other post-retirement benefit costs108
 97
Investment tax credits234
 203
Other559
 607
Total other noncurrent liabilities13,878
 13,964
Commitments and Contingencies

 

Equity   
Member's equity11,164
 10,781
Accumulated other comprehensive loss(8) (9)
Total equity11,156
 10,772
Total Liabilities and Equity$37,259
 $36,515

PART I

FINANCIAL STATEMENTS
DUKE ENERGY CAROLINAS, LLC
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income$340 $312 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including amortization of nuclear fuel)447 428 
Equity component of AFUDC(22)(16)
Impairment of assets and other charges3 — 
Deferred income taxes44 (8)
Payments for asset retirement obligations(35)(35)
Provision for rate refunds(18)— 
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions50 — 
Receivables77 156 
Receivables from affiliated companies56 
Inventory(13)(11)
Other current assets(230)(48)
Increase (decrease) in
Accounts payable(225)(255)
Accounts payable to affiliated companies(17)
Taxes accrued(150)62 
Other current liabilities56 (77)
Other assets6 43 
Other liabilities(44)(17)
Net cash provided by operating activities325 546 
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures(717)(622)
Purchases of debt and equity securities(1,008)(1,128)
Proceeds from sales and maturities of debt and equity securities1,008 1,128 
Notes receivable from affiliated companies(492)— 
Other(54)(43)
Net cash used in investing activities(1,263)(665)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt1,217 142 
Payments for the redemption of long-term debt(1)(33)
Notes payable to affiliated companies(226)
Distributions to parent(50)— 
Other(1)(1)
Net cash provided by financing activities939 110 
Net increase (decrease) in cash, cash equivalents and restricted cash1 (9)
Cash, cash equivalents and restricted cash at beginning of period8 21 
Cash, cash equivalents and restricted cash at end of period$9 $12 
Supplemental Disclosures:
Significant non-cash transactions:
Accrued capital expenditures$352 $268 

See Notes to Condensed Consolidated Financial Statements
16

 Nine Months Ended
 September 30,
(in millions)2017
 2016
CASH FLOWS FROM OPERATING ACTIVITIES   
Net income$1,009
 $1,026
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation and amortization (including amortization of nuclear fuel)1,051
 1,020
Equity component of AFUDC(79) (75)
Losses on sales of other assets and other, net
 1
Deferred income taxes330
 382
Accrued pension and other post-retirement benefit costs
 3
Payments for asset retirement obligations(201) (204)
(Increase) decrease in   
Net realized and unrealized mark-to-market and hedging transactions1
 4
Receivables(40) (191)
Receivables from affiliated companies17
 19
Inventory50
 217
Other current assets8
 81
Increase (decrease) in   
Accounts payable(78) (179)
Accounts payable to affiliated companies(88) (100)
Taxes accrued225
 248
Other current liabilities(149) 51
Other assets(18) 57
Other liabilities(26) (15)
Net cash provided by operating activities2,012
 2,345
CASH FLOWS FROM INVESTING ACTIVITIES   
Capital expenditures(1,747) (1,531)
Purchases of available-for-sale securities(1,660) (2,070)
Proceeds from sales and maturities of available-for-sale securities1,664
 2,070
Notes receivable from affiliated companies66
 131
Other(58) (65)
Net cash used in investing activities(1,735) (1,465)
CASH FLOWS FROM FINANCING ACTIVITIES   
Proceeds from the issuance of long-term debt
 992
Payments for the redemption of long-term debt(115) (3)
Notes payable to affiliated companies468
 
Distributions to parent(625) (1,800)
Other(1) 
Net cash used in financing activities(273) (811)
Net increase in cash and cash equivalents4
 69
Cash and cash equivalents at beginning of period14
 13
Cash and cash equivalents at end of period$18
 $82
Supplemental Disclosures:   
Significant non-cash transactions:   
Accrued capital expenditures$292
 $228

PART I

FINANCIAL STATEMENTS
DUKE ENERGY CAROLINAS, LLC
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended March 31, 2021 and 2022
Accumulated Other
Comprehensive
Loss
Member'sNet Losses onTotal
(in millions)EquityCash Flow HedgesEquity
Balance at December 31, 2020$13,161 $(7)$13,154 
Net income312 — 312 
Balance at March 31, 2021$13,473 $(7)$13,466 
Balance at December 31, 2021$13,897 $(6)$13,891 
Net income340  340 
Distributions to parent(50) (50)
Other1  1 
Balance at March 31, 2022$14,188 $(6)$14,182 

See Notes to Condensed Consolidated Financial Statements
17

   Accumulated Other  
   Comprehensive  
   Loss  
   Net Losses on
  
 Member's
 Cash Flow
 Total
(in millions)Equity
 Hedges
 Equity
Balance at December 31, 2015$11,617
 $(11) $11,606
Net income1,026
 
 1,026
Other comprehensive income
 1
 1
Distributions to parent(1,800) 
 (1,800)
Other(3) 
 (3)
Balance at September 30, 2016$10,840
 $(10) $10,830
      
Balance at December 31, 2016$10,781
 $(9) $10,772
Net income1,009
 
 1,009
Other comprehensive income
 1
 1
Distributions to parent(625) 
 (625)
Other(1) 
 (1)
Balance at September 30, 2017$11,164
 $(8) $11,156

FINANCIAL STATEMENTS
PART I



PROGRESS ENERGY, INC.
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
Operating Revenues$2,992 $2,505 
Operating Expenses
Fuel used in electric generation and purchased power1,064 795 
Operation, maintenance and other645 601 
Depreciation and amortization536 485 
Property and other taxes152 142 
Total operating expenses2,397 2,023 
Gains on Sales of Other Assets and Other, net2 — 
Operating Income597 482 
Other Income and Expenses, net35 43 
Interest Expense211 192 
Income Before Income Taxes421 333 
Income Tax Expense67 43 
Net Income$354 $290 
Net Income$354 $290 
Other Comprehensive Income, net of tax
Net unrealized gains on cash flow hedges1 
Unrealized losses on available-for-sale securities(2)(1)
Other Comprehensive Loss, net of tax(1)— 
Comprehensive Income$353 $290 

See Notes to Condensed Consolidated Financial Statements
18

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Operating Revenues$2,864
 $2,965
 $7,435
 $7,645
Operating Expenses       
Fuel used in electric generation and purchased power1,031
 1,120
 2,588
 2,832
Operation, maintenance and other572
 582
 1,650
 1,699
Depreciation and amortization334
 318
 958
 904
Property and other taxes140
 136
 386
 375
Impairment charges135
 1
 137
 4
Total operating expenses2,212
 2,157
 5,719
 5,814
Gains on Sales of Other Assets and Other, net5
 6
 19
 18
Operating Income657
 814
 1,735
 1,849
Other Income and Expenses, net20
 31
 65
 79
Interest Expense193
 177
 595
 497
Income Before Income Taxes484
 668
 1,205
 1,431
Income Tax Expense141
 219
 384
 496
Net Income343
 449
 821
 935
Less: Net Income Attributable to Noncontrolling Interests2
 3
 7
 8
Net Income Attributable to Parent$341
 $446
 $814
 $927
        
Net Income$343
 $449
 $821
 $935
Other Comprehensive Income, net of tax       
Pension and OPEB adjustments3
 
 5
 2
Net unrealized (loss) gain on cash flow hedges(2) 
 4
 
Reclassification into earnings from cash flow hedges
 1
 
 4
Unrealized gains on available-for-sale securities1
 1
 3
 2
Other Comprehensive Income, net of tax2

2

12

8
Comprehensive Income345
 451
 833
 943
Less: Comprehensive Income Attributable to Noncontrolling Interests2
 3
 7
 8
Comprehensive Income Attributable to Parent$343

$448

$826

$935


PART I

FINANCIAL STATEMENTS
PROGRESS ENERGY, INC.
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)March 31, 2022December 31, 2021
ASSETS
Current Assets
Cash and cash equivalents$63 $70 
Receivables (net of allowance for doubtful accounts of $11 at 2022 and 2021)286 247 
Receivables of VIEs (net of allowance for doubtful accounts of $40 at 2022 and $25 at 2021)1,166 1,006 
Receivables from affiliated companies37 121 
Notes receivable from affiliated companies237 — 
Inventory1,403 1,398 
Regulatory assets (includes $93 at 2022 and 2021 related to VIEs)1,101 1,030 
Other (includes $27 at 2022 and $39 at 2021 related to VIEs)319 125 
Total current assets4,612 3,997 
Property, Plant and Equipment
Cost61,629 60,894 
Accumulated depreciation and amortization(19,702)(19,214)
Facilities to be retired, net24 26 
Net property, plant and equipment41,951 41,706 
Other Noncurrent Assets
Goodwill3,655 3,655 
Regulatory assets (includes $1,583 at 2022 and $1,603 at 2021 related to VIEs)6,024 5,909 
Nuclear decommissioning trust funds4,385 4,642 
Operating lease right-of-use assets, net701 691 
Other1,336 1,242 
Total other noncurrent assets16,101 16,139 
Total Assets$62,664 $61,842 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$982 $1,099 
Accounts payable to affiliated companies364 506 
Notes payable to affiliated companies377 2,809 
Taxes accrued157 128 
Interest accrued195 192 
Current maturities of long-term debt (includes $88 at 2022 and $71 at 2021 related to VIEs)1,095 1,082 
Asset retirement obligations268 275 
Regulatory liabilities469 478 
Other760 868 
Total current liabilities4,667 7,437 
Long-Term Debt (includes $2,246 at 2022 and $2,293 at 2021 related to VIEs)20,412 19,591 
Long-Term Debt Payable to Affiliated Companies150 150 
Other Noncurrent Liabilities
Deferred income taxes4,702 4,564 
Asset retirement obligations5,821 5,837 
Regulatory liabilities5,671 5,566 
Operating lease liabilities619 606 
Accrued pension and other post-retirement benefit costs409 417 
Other531 526 
Total other noncurrent liabilities17,753 17,516 
Commitments and Contingencies00
Equity
Common Stock, $0.01 par value, 100 shares authorized and outstanding at 2022 and 2021 — 
Additional paid-in capital9,149 9,149 
Retained earnings10,543 8,007 
Accumulated other comprehensive loss(12)(11)
Total Progress Energy, Inc. stockholders' equity19,680 17,145 
Noncontrolling interests2 
Total equity19,682 17,148 
Total Liabilities and Equity$62,664 $61,842 
See Notes to Condensed Consolidated Financial Statements
19

(in millions)September 30, 2017
 December 31, 2016
ASSETS   
Current Assets   
Cash and cash equivalents$30
 $46
Receivables (net of allowance for doubtful accounts of $4 at 2017 and $6 at 2016)93
 114
Receivables of VIEs (net of allowance for doubtful accounts of $7 at 2017 and 2016)900
 692
Receivables from affiliated companies
 106
Notes receivable from affiliated companies170
 80
Inventory1,584
 1,717
Regulatory assets (includes $51 at 2017 and $50 at 2016 related to VIEs)440
 401
Other243
 148
Total current assets3,460
 3,304
Property, Plant and Equipment   
Cost46,659
 44,864
Accumulated depreciation and amortization(15,760) (15,212)
Generation facilities to be retired, net441
 529
Net property, plant and equipment31,340
 30,181
Other Noncurrent Assets   
Goodwill3,655
 3,655
Regulatory assets (includes $1,101 at 2017 and $1,142 at 2016 related to VIEs)6,438
 5,722
Nuclear decommissioning trust funds3,194
 2,932
Other909
 856
Total other noncurrent assets14,196
 13,165
Total Assets$48,996
 $46,650
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$1,015
 $1,003
Accounts payable to affiliated companies289
 348
Notes payable to affiliated companies576
 729
Taxes accrued227
 83
Interest accrued216
 201
Current maturities of long-term debt (includes $53 at 2017 and $62 at 2016 related to VIEs)770
 778
Asset retirement obligations250
 189
Regulatory liabilities121
 189
Other652
 745
Total current liabilities4,116
 4,265
Long-Term Debt (includes $1,689 at 2017 and $1,741 at 2016 related to VIEs)16,717
 15,590
Long-Term Debt Payable to Affiliated Companies150
 1,173
Other Noncurrent Liabilities   
Deferred income taxes6,463
 5,246
Asset retirement obligations5,189
 5,286
Regulatory liabilities2,511
 2,395
Accrued pension and other post-retirement benefit costs535
 547
Other298
 341
Total other noncurrent liabilities14,996
 13,815
Commitments and Contingencies
 
Equity   
Common stock, $0.01 par value, 100 shares authorized and outstanding at 2017 and 2016
 
Additional paid-in capital9,143
 8,094
Retained earnings3,906
 3,764
Accumulated other comprehensive loss(26) (38)
Total Progress Energy, Inc. stockholders' equity13,023
 11,820
Noncontrolling interests(6) (13)
Total equity13,017
 11,807
Total Liabilities and Equity$48,996
 $46,650

PART I

FINANCIAL STATEMENTS
PROGRESS ENERGY, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income$354 $290 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)625 575 
Equity component of AFUDC(12)(13)
Deferred income taxes72 79 
Payments for asset retirement obligations(68)(69)
Provision for rate refunds(16)— 
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions164 
Receivables(123)214 
Receivables from affiliated companies102 81 
Inventory(5)39 
Other current assets(224)(150)
Increase (decrease) in
Accounts payable26 (69)
Accounts payable to affiliated companies(142)32 
Taxes accrued30 23 
Other current liabilities(113)(60)
Other assets(80)(27)
Other liabilities40 (64)
Net cash provided by operating activities630 887 
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures(981)(796)
Purchases of debt and equity securities(531)(517)
Proceeds from sales and maturities of debt and equity securities548 537 
Notes receivable from affiliated companies(237)— 
Other(28)(59)
Net cash used in investing activities(1,229)(835)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt889 98 
Payments for the redemption of long-term debt(54)(34)
Notes payable to affiliated companies(1)(125)
Dividends to parent(250)— 
Other(3)(2)
Net cash provided by (used in) financing activities581 (63)
Net (decrease) increase in cash, cash equivalents and restricted cash(18)(11)
Cash, cash equivalents and restricted cash at beginning of period113 200 
Cash, cash equivalents and restricted cash at end of period$95 $189 
Supplemental Disclosures:
Significant non-cash transactions:
Accrued capital expenditures$349 $317 
See Notes to Condensed Consolidated Financial Statements
20
 Nine Months Ended
 September 30,
(in millions)2017
 2016
CASH FLOWS FROM OPERATING ACTIVITIES   
Net income$821
 $935
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation, amortization and accretion (including amortization of nuclear fuel)1,130
 1,071
Equity component of AFUDC(68) (51)
Gains on sales of other assets(20) (23)
Impairment charges137
 4
Deferred income taxes651
 425
Accrued pension and other post-retirement benefit costs(9) (19)
Payments for asset retirement obligations(190) (203)
(Increase) decrease in   
Net realized and unrealized mark-to-market and hedging transactions1
 33
Receivables(182) (155)
Receivables from affiliated companies102
 329
Inventory126
 99
Other current assets(279) (30)
Increase (decrease) in   
Accounts payable(281) (24)
Accounts payable to affiliated companies(59) (109)
Taxes accrued143
 159
Other current liabilities(184) (156)
Other assets(100) (90)
Other liabilities(85) (4)
Net cash provided by operating activities1,654
 2,191
CASH FLOWS FROM INVESTING ACTIVITIES   
Capital expenditures(2,419) (2,286)
Purchases of available-for-sale securities(1,393) (1,849)
Proceeds from sales and maturities of available-for-sale securities1,411
 1,899
Proceeds from insurance4
 58
Notes receivable from affiliated companies(90) (43)
Change in restricted cash5
 (6)
Other(40) (17)
Net cash used in investing activities(2,522) (2,244)
CASH FLOWS FROM FINANCING ACTIVITIES   
Proceeds from the issuance of long-term debt1,720
 2,375
Payments for the redemption of long-term debt(611) (327)
Notes payable to affiliated companies(129) (798)
Dividends to parent(125) (1,075)
Other(3) (1)
Net cash provided by financing activities852
 174
Net (decrease) increase in cash and cash equivalents(16) 121
Cash and cash equivalents at beginning of period46
 44
Cash and cash equivalents at end of period$30
 $165
Supplemental Disclosures:   
Significant non-cash transactions:   
Accrued capital expenditures$174
 $228
Equitization of certain notes payable to affiliates1,047
 
Dividend to parent related to a legal entity restructuring547
 


FINANCIAL STATEMENTS
PART I

PROGRESS ENERGY, INC.
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended March 31, 2021 and 2022
Accumulated Other Comprehensive Loss
Net GainsNet UnrealizedTotal Progress
Additional(Losses) onGains (Losses) onPension andEnergy, Inc.
Paid-inRetainedCash FlowAvailable-for-OPEBStockholders'NoncontrollingTotal
CapitalEarningsHedgesSale SecuritiesAdjustmentsEquityInterestsEquity
Balance at December 31, 2020$9,143 $7,109 $(5)$(2)$(8)$16,237 $$16,241 
Net income— 290 — — — 290 — 290 
Other comprehensive income (loss)— — (1)— — — — 
Distributions to noncontrolling interests— — — — — — (1)(1)
Other— — — — (1)— 
Balance at March 31, 2021$9,143 $7,400 $(4)$(3)$(8)$16,528 $$16,530 
Balance at December 31, 2021$9,149 $8,007 $(2)$(2)$(7)$17,145 $$17,148 
Net income 354    354  354 
Other comprehensive income (loss)  1 (2) (1) (1)
Distributions to noncontrolling interests      (1)(1)
Dividends to parent (250)   (250) (250)
Equitization of certain notes payable to affiliates 2,431    2,431  2,431 
Other 1    1  1 
Balance at March 31, 2022$9,149 $10,543 $(1)$(4)$(7)$19,680 $2 $19,682 
See Notes to Condensed Consolidated Financial Statements
21

     Accumulated Other Comprehensive Loss      
       Net Unrealized
   Total Progress
    
 Additional
   Net Losses on
 Gains on
 Pension and
 Energy, Inc.
    
 Paid-in
 Retained
 Cash Flow
 Available-for-
 OPEB
 Stockholders'
 Noncontrolling
 Total
(in millions)Capital
 Earnings
 Hedges
 Sale Securities
 Adjustments
 Equity
 Interests
 Equity
Balance at December 31, 2015$8,092
 $4,831
 $(31) $
 $(17) $12,875
 $(22) $12,853
Net income
 927
 
 
 
 927
 8
 935
Other comprehensive income
 
 4
 2
 2
 8
 
 8
Distributions to noncontrolling interests
 
 
 
 
 
 (1) (1)
Dividends to parent
 (1,075) 
 
 
 (1,075) 
 (1,075)
Other4
 
 
 
 
 4
 (1) 3
Balance at September 30, 2016$8,096

$4,683

$(27)
$2

$(15)
$12,739

$(16)
$12,723
                
Balance at December 31, 2016$8,094
 $3,764
 $(23) $1
 $(16) $11,820
 $(13) $11,807
Net income
 814
 
 
 
 814
 7
 821
Other comprehensive income
 
 4
 3
 5
 12
 
 12
Dividends to parent(a)

 (672) 
 
 
 (672) 
 (672)
Equitization of certain notes payable to affiliates1,047
 
 
 
 
 1,047
 
 1,047
Other2
 
 
 
 
 2
 
 2
Balance at September 30, 2017$9,143

$3,906

$(19)
$4

$(11)
$13,023

$(6)
$13,017
(a)FINANCIAL STATEMENTSIncludes a $547 million non-cash dividend related to a legal entity restructuring.

PART I



DUKE ENERGY PROGRESS, LLC
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
Operating Revenues$1,632 $1,401 
Operating Expenses
Fuel used in electric generation and purchased power574 436 
Operation, maintenance and other391 357 
Depreciation and amortization306 285 
Property and other taxes49 49 
Total operating expenses1,320 1,127 
Gains on Sales of Other Assets and Other, net1 — 
Operating Income313 274 
Other Income and Expenses, net22 24 
Interest Expense85 69 
Income Before Income Taxes250 229 
Income Tax Expense35 19 
Net Income and Comprehensive Income$215 $210 

See Notes to Condensed Consolidated Financial Statements
22

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Operating Revenues$1,460
 $1,583
 $3,878
 $4,103
Operating Expenses       
Fuel used in electric generation and purchased power475
 569
 1,214
 1,441
Operation, maintenance and other352
 360
 1,032
 1,067
Depreciation and amortization182
 176
 536
 526
Property and other taxes40
 40
 120
 119
Impairment charges
 1
 
 1
Total operating expenses1,049
 1,146
 2,902
 3,154
Gains on Sales of Other Assets and Other, net
 1
 3
 2
Operating Income411
 438
 979
 951
Other Income and Expenses, net14
 18
 47
 47
Interest Expense65
 61
 217
 188
Income Before Income Taxes360
 395
 809
 810
Income Tax Expense114
 124
 262
 271
Net Income and Comprehensive Income$246
 $271
 $547
 $539


PART I

FINANCIAL STATEMENTS
DUKE ENERGY PROGRESS, LLC
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)March 31, 2022December 31, 2021
ASSETS
Current Assets
Cash and cash equivalents$42 $35 
Receivables (net of allowance for doubtful accounts of $4 at 2022 and 2021)188 127 
Receivables of VIEs (net of allowance for doubtful accounts of $27 at 2022 and $17 at 2021)658 574 
Receivables from affiliated companies20 65 
Notes receivable from affiliated companies328 — 
Inventory940 921 
Regulatory assets (includes $39 at 2022 and 2021 related to VIEs)595 533 
Other (includes $14 in 2022 and $0 in 2021 related to VIEs)200 83 
Total current assets2,971 2,338 
Property, Plant and Equipment
Cost37,361 37,018 
Accumulated depreciation and amortization(13,691)(13,387)
Facilities to be retired, net24 26 
Net property, plant and equipment23,694 23,657 
Other Noncurrent Assets
Regulatory assets (includes $711 at 2022 and $720 at 2021 related to VIEs)4,124 4,118 
Nuclear decommissioning trust funds3,872 4,089 
Operating lease right-of-use assets, net410 389 
Other867 792 
Total other noncurrent assets9,273 9,388 
Total Assets$35,938 $35,383 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$450 $476 
Accounts payable to affiliated companies260 310 
Notes payable to affiliated companies 172 
Taxes accrued77 163 
Interest accrued76 96 
Current maturities of long-term debt (includes $32 at 2022 and $15 at 2021 related to VIEs)568 556 
Asset retirement obligations268 274 
Regulatory liabilities378 381 
Other400 448 
Total current liabilities2,477 2,876 
Long-Term Debt (includes $1,080 at 2022 and $1,097 at 2021 related to VIEs)10,396 9,543 
Long-Term Debt Payable to Affiliated Companies150 150 
Other Noncurrent Liabilities
Deferred income taxes2,275 2,208 
Asset retirement obligations5,411 5,401 
Regulatory liabilities4,898 4,868 
Operating lease liabilities372 350 
Accrued pension and other post-retirement benefit costs218 221 
Investment tax credits128 128 
Other96 87 
Total other noncurrent liabilities13,398 13,263 
Commitments and Contingencies00
Equity
Member's Equity9,517 9,551 
Total Liabilities and Equity$35,938 $35,383 

See Notes to Condensed Consolidated Financial Statements
23

(in millions)September 30, 2017
 December 31, 2016
ASSETS   
Current Assets   
Cash and cash equivalents$15
 $11
Receivables (net of allowance for doubtful accounts of $1 at 2017 and $4 at 2016)29
 51
Receivables of VIEs (net of allowance for doubtful accounts of $5 at 2017 and 2016)472
 404
Receivables from affiliated companies8
 5
Notes receivable from affiliated companies101
 165
Inventory1,018
 1,076
Regulatory assets230
 188
Other40
 57
Total current assets1,913
 1,957
Property, Plant and Equipment   
Cost29,104
 28,419
Accumulated depreciation and amortization(10,793) (10,561)
Generation facilities to be retired, net441
 529
Net property, plant and equipment18,752
 18,387
Other Noncurrent Assets   
Regulatory assets3,588
 3,243
Nuclear decommissioning trust funds2,463
 2,217
Other565
 525
Total other noncurrent assets6,616
 5,985
Total Assets$27,281
 $26,329
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$271
 $589
Accounts payable to affiliated companies207
 227
Taxes accrued137
 104
Interest accrued91
 102
Current maturities of long-term debt203
 452
Asset retirement obligations250
 189
Regulatory liabilities107
 158
Other318
 365
Total current liabilities1,584
 2,186
Long-Term Debt7,204
 6,409
Long-Term Debt Payable to Affiliated Companies150
 150
Other Noncurrent Liabilities   
Deferred income taxes3,606
 3,323
Asset retirement obligations4,426
 4,508
Regulatory liabilities2,097
 1,946
Accrued pension and other post-retirement benefit costs246
 252
Investment tax credits144
 146
Other44
 51
Total other noncurrent liabilities10,563
 10,226
Commitments and Contingencies
 
Equity   
Member's Equity7,780
 7,358
Total Liabilities and Equity$27,281
 $26,329

PART I

FINANCIAL STATEMENTS
DUKE ENERGY PROGRESS, LLC
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income$215 $210 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including amortization of nuclear fuel)350 331 
Equity component of AFUDC(7)(8)
Deferred income taxes19 
Payments for asset retirement obligations(41)(46)
Provision for rate refunds(16)— 
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions164 
Receivables(70)131 
Receivables from affiliated companies63 (20)
Inventory(19)29 
Other current assets(75)(21)
Increase (decrease) in
Accounts payable18 (62)
Accounts payable to affiliated companies(50)10 
Taxes accrued(85)(12)
Other current liabilities(67)(25)
Other assets(56)(35)
Other liabilities47 (15)
Net cash provided by operating activities390 475 
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures(467)(400)
Purchases of debt and equity securities(481)(382)
Proceeds from sales and maturities of debt and equity securities480 380 
Notes receivable from affiliated companies(328)— 
Other(19)(29)
Net cash used in investing activities(815)(431)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt889 98 
Payments for the:
Payments for the redemption of long-term debt(21)(2)
Notes payable to affiliated companies(172)(132)
Distributions to parent(250)— 
Other(1)(1)
Net cash provided by (used in) financing activities445 (37)
Net increase in cash, cash equivalents and restricted cash20 
Cash, cash equivalents and restricted cash at beginning of period39 39 
Cash, cash equivalents and restricted cash at end of period$59 $46 
Supplemental Disclosures:
Significant non-cash transactions:
Accrued capital expenditures$111 $96 

See Notes to Condensed Consolidated Financial Statements
24

 Nine Months Ended
 September 30,
(in millions)2017
 2016
CASH FLOWS FROM OPERATING ACTIVITIES   
Net income$547
 $539
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation and amortization (including amortization of nuclear fuel)691
 679
Equity component of AFUDC(35) (34)
Gains on sales of other assets(4) (4)
Impairment charges
 1
Deferred income taxes287
 325
Accrued pension and other post-retirement benefit costs(15) (24)
Payments for asset retirement obligations(149) (163)
(Increase) decrease in   
Net realized and unrealized mark-to-market and hedging transactions(2) 
Receivables(47) (78)
Receivables from affiliated companies(3) 11
Inventory52
 91
Other current assets(34) 37
Increase (decrease) in   
Accounts payable(286) (44)
Accounts payable to affiliated companies(20) (47)
Taxes accrued33
 76
Other current liabilities(139) 37
Other assets(49) (32)
Other liabilities(9) (10)
Net cash provided by operating activities818
 1,360
CASH FLOWS FROM INVESTING ACTIVITIES   
Capital expenditures(1,247) (1,106)
Purchases of available-for-sale securities(995) (1,470)
Proceeds from sales and maturities of available-for-sale securities974
 1,448
Notes receivable from affiliated companies64
 (65)
Other(26) (27)
Net cash used in investing activities(1,230) (1,220)
CASH FLOWS FROM FINANCING ACTIVITIES   
Proceeds from the issuance of long-term debt812
 505
Payments for the redemption of long-term debt(270) (15)
Notes payable to affiliated companies
 (209)
Distributions to parent(125) (301)
Other(1) 1
Net cash provided by (used in) financing activities416
 (19)
Net increase in cash and cash equivalents4
 121
Cash and cash equivalents at beginning of period11
 15
Cash and cash equivalents at end of period$15
 $136
Supplemental Disclosures:   
Significant non-cash transactions:   
Accrued capital expenditures$116
 $66

PART I

FINANCIAL STATEMENTS
DUKE ENERGY PROGRESS, LLC
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended
March 31, 2021 and 2022
(in millions)Member's Equity
Balance at December 31, 2020$9,260 
Net income210 
Balance at March 31, 2021$9,470 
Balance at December 31, 2021$9,551 
Net income215
Distributions to parent(250)
Other1
Balance at March 31, 2022$9,517

See Notes to Condensed Consolidated Financial Statements
25

 Member's
(in millions)Equity
Balance at December 31, 2015$7,059
Net income539
Distributions to parent(301)
Balance at September 30, 2016$7,297
  
Balance at December 31, 2016$7,358
Net income547
Distributions to parent(125)
Balance at September 30, 2017$7,780
FINANCIAL STATEMENTS



PART I


DUKE ENERGY FLORIDA, LLC
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
Operating Revenues$1,355 $1,101 
Operating Expenses
Fuel used in electric generation and purchased power490 359 
Operation, maintenance and other249 242 
Depreciation and amortization231 200 
Property and other taxes103 93 
Total operating expenses1,073 894 
Gains on Sales of Other Assets and Other, net1 — 
Operating Income283 207 
Other Income and Expenses, net15 18 
Interest Expense84 80 
Income Before Income Taxes214 145 
Income Tax Expense43 28 
Net Income$171 $117 
Other Comprehensive Loss, net of tax
Unrealized losses on available-for-sale securities(1)(1)
Comprehensive Income$170 $116 

See Notes to Condensed Consolidated Financial Statements
26

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Operating Revenues$1,401
 $1,381
 $3,551
 $3,538
Operating Expenses       
Fuel used in electric generation and purchased power557
 550
 1,374
 1,391
Operation, maintenance and other216
 219
 610
 623
Depreciation and amortization154
 142
 423
 378
Property and other taxes99
 96
 265
 256
Impairment charges135
 1
 137
 4
Total operating expenses1,161
 1,008
 2,809
 2,652
Operating Income240
 373
 742
 886
Other Income and Expenses, net15
 11
 45
 30
Interest Expense71
 62
 211
 143
Income Before Income Taxes184
 322
 576
 773
Income Tax Expense64
 116
 208
 286
Net Income$120
 $206
 $368
 $487
Other Comprehensive Income, net of tax
 
 

 

Unrealized gains on available-for-sale securities1
 1
 3
 2
Comprehensive Income$121
 $207
 $371

$489


PART I

FINANCIAL STATEMENTS
DUKE ENERGY FLORIDA, LLC
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)March 31, 2022December 31, 2021
ASSETS
Current Assets
Cash and cash equivalents$13 $23 
Receivables (net of allowance for doubtful accounts of $8 at 2022 and 2021)97 117 
Receivables of VIEs (net of allowance for doubtful accounts of $13 at 2022 and $8 at 2021)508 432 
Receivables from affiliated companies16 16 
Inventory463 477 
Regulatory assets (includes $54 at 2022 and 2021 related to VIEs)505 497 
Other (includes $13 at 2022 and $39 at 2021 related to VIEs)79 80 
Total current assets1,681 1,642 
Property, Plant and Equipment
Cost24,257 23,865 
Accumulated depreciation and amortization(6,003)(5,819)
Net property, plant and equipment18,254 18,046 
Other Noncurrent Assets
Regulatory assets (includes $872 at 2022 and $883 at 2021 related to VIEs)1,899 1,791 
Nuclear decommissioning trust funds514 553 
Operating lease right-of-use assets, net291 302 
Other418 399 
Total other noncurrent assets3,122 3,045 
Total Assets$23,057 $22,733 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$532 $623 
Accounts payable to affiliated companies120 209 
Notes payable to affiliated companies468 199 
Taxes accrued96 51 
Interest accrued84 68 
Current maturities of long-term debt (includes $56 at 2022 and 2021 related to VIEs)77 76 
Asset retirement obligations1 
Regulatory liabilities91 98 
Other349 408 
Total current liabilities1,818 1,733 
Long-Term Debt (includes $1,166 at 2022 and $1,196 at 2021 related to VIEs)8,374 8,406 
Other Noncurrent Liabilities
Deferred income taxes2,503 2,434 
Asset retirement obligations411 436 
Regulatory liabilities772 698 
Operating lease liabilities247 256 
Accrued pension and other post-retirement benefit costs161 166 
Other306 309 
Total other noncurrent liabilities4,400 4,299 
Commitments and Contingencies00
Equity
Member's equity8,469 8,298 
Accumulated other comprehensive loss(4)(3)
Total equity8,465 8,295 
Total Liabilities and Equity$23,057 $22,733 

See Notes to Condensed Consolidated Financial Statements
27

(in millions)September 30, 2017
 December 31, 2016
ASSETS   
Current Assets   
Cash and cash equivalents$8
 $16
Receivables (net of allowance for doubtful accounts of $3 at 2017 and $2 at 2016)61
 61
Receivables of VIEs (net of allowance for doubtful accounts of $2 at 2017 and 2016)428
 288
Receivables from affiliated companies
 5
Notes receivable from affiliated companies70
 
Inventory566
 641
Regulatory assets (includes $51 at 2017 and $50 at 2016 related to VIEs)211
 213
Other (includes $20 at 2017 and $53 at 2016 related to VIEs)154
 125
Total current assets1,498
 1,349
Property, Plant and Equipment   
Cost17,546
 16,434
Accumulated depreciation and amortization(4,960) (4,644)
Net property, plant and equipment12,586
 11,790
Other Noncurrent Assets   
Regulatory assets (includes $1,101 at 2017 and $1,142 at 2016 related to VIEs)2,850
 2,480
Nuclear decommissioning trust funds731
 715
Other293
 278
Total other noncurrent assets3,874
 3,473
Total Assets$17,958
 $16,612
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$744
 $413
Accounts payable to affiliated companies90
 125
Notes payable to affiliated companies
 297
Taxes accrued143
 33
Interest accrued71
 49
Current maturities of long-term debt (includes $53 at 2017 and $62 at 2016 related to VIEs)567
 326
Regulatory liabilities14
 31
Other310
 352
Total current liabilities1,939
 1,626
Long-Term Debt (includes $1,389 at 2017 and $1,442 at 2016 related to VIEs)6,129
 5,799
Other Noncurrent Liabilities   
Deferred income taxes3,076
 2,694
Asset retirement obligations763
 778
Regulatory liabilities414
 448
Accrued pension and other post-retirement benefit costs257
 262
Other106
 105
Total other noncurrent liabilities4,616
 4,287
Commitments and Contingencies
 
Equity   
Member's equity5,270
 4,899
Accumulated other comprehensive income4
 1
Total equity5,274
 4,900
Total Liabilities and Equity$17,958
 $16,612

PART I

FINANCIAL STATEMENTS
DUKE ENERGY FLORIDA, LLC
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income$171 $117 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion273 243 
Equity component of AFUDC(5)(4)
Deferred income taxes52 74 
Payments for asset retirement obligations(28)(24)
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions 
Receivables(54)83 
Receivables from affiliated companies (4)
Inventory14 10 
Other current assets(72)(101)
Increase (decrease) in
Accounts payable9 (7)
Accounts payable to affiliated companies(89)23 
Taxes accrued45 
Other current liabilities(52)(41)
Other assets(24)12 
Other liabilities(6)(48)
Net cash provided by operating activities234 338 
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures(514)(396)
Purchases of debt and equity securities(49)(134)
Proceeds from sales and maturities of debt and equity securities69 157 
Other(10)(30)
Net cash used in investing activities(504)(403)
CASH FLOWS FROM FINANCING ACTIVITIES
Payments for the redemption of long-term debt(34)(33)
Notes payable to affiliated companies269 83 
Other(1)— 
Net cash provided by financing activities234 50 
Net decrease in cash, cash equivalents and restricted cash(36)(15)
Cash, cash equivalents and restricted cash at beginning of period62 50 
Cash, cash equivalents and restricted cash at end of period$26 $35 
Supplemental Disclosures:
Significant non-cash transactions:
Accrued capital expenditures$237 $222 

See Notes to Condensed Consolidated Financial Statements
28

 Nine Months Ended
 September 30,
(in millions)2017
 2016
CASH FLOWS FROM OPERATING ACTIVITIES   
Net income$368
 $487
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation, amortization and accretion431
 383
Equity component of AFUDC(33) (16)
Impairment charges137
 4
Deferred income taxes366
 136
Accrued pension and other post-retirement benefit costs3
 2
Payments for asset retirement obligations(41) (41)
(Increase) decrease in   
Net realized and unrealized mark-to-market and hedging transactions3
 34
Receivables(140) (78)
Receivables from affiliated companies1
 41
Inventory74
 8
Other current assets(162) (32)
Increase (decrease) in   
Accounts payable6
 20
Accounts payable to affiliated companies(35) (55)
Taxes accrued109
 61
Other current liabilities(45) (183)
Other assets(35) (56)
Other liabilities(71) 1
Net cash provided by operating activities936
 716
CASH FLOWS FROM INVESTING ACTIVITIES   
Capital expenditures(1,172) (1,179)
Purchases of available-for-sale securities(398) (379)
Proceeds from sales and maturities of available-for-sale securities437
 450
Proceeds from insurance4
 58
Notes receivable from affiliated companies(70) 
Change in restricted cash
 (6)
Other(14) 10
Net cash used in investing activities(1,213) (1,046)
CASH FLOWS FROM FINANCING ACTIVITIES   
Proceeds from the issuance of long-term debt908
 1,870
Payments for the redemption of long-term debt(341) (12)
Notes payable to affiliated companies(297) (750)
Distributions to parent
 (774)
Other(1) (2)
Net cash provided by financing activities269
 332
Net (decrease) increase in cash and cash equivalents(8) 2
Cash and cash equivalents at beginning of period16
 8
Cash and cash equivalents at end of period$8
 $10
Supplemental Disclosures:   
Significant non-cash transactions:   
Accrued capital expenditures$102
 $162

PART I

FINANCIAL STATEMENTS
DUKE ENERGY FLORIDA, LLC
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended March 31, 2021 and 2022
Accumulated
Other
Comprehensive
Loss
Net Unrealized
Losses on
Member'sAvailable-for-SaleTotal
(in millions)EquitySecuritiesEquity
Balance at December 31, 2020$7,560 $(2)$7,558 
Net income117 — 117 
Other comprehensive loss— (1)(1)
Balance at March 31, 2021$7,677 $(3)$7,674 
Balance at December 31, 2021$8,298 $(3)$8,295 
Net income171  171 
Other comprehensive loss (1)(1)
Balance at March 31, 2022$8,469 $(4)$8,465 
See Notes to Condensed Consolidated Financial Statements
29

   Accumulated  
   Other  
   Comprehensive  
   Income  
   Net Unrealized
  
   Gains on
  
 Member's
 Available-for-Sale
 Total
(in millions)Equity
 Securities
 Equity
Balance at December 31, 2015$5,121
 $
 $5,121
Net income487
 
 487
Other comprehensive income
 2
 2
Distributions to parent(774) 
 (774)
Other3
 
 3
Balance at September 30, 2016$4,837
 $2
 $4,839
      
Balance at December 31, 2016$4,899
 $1
 $4,900
Net income368
 
 368
Other comprehensive income
 3
 3
Other3
 
 3
Balance at September 30, 2017$5,270
 $4
 $5,274

FINANCIAL STATEMENTS
PART I



DUKE ENERGY OHIO, INC.
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
Operating Revenues
Regulated electric$412 $363 
Regulated natural gas226 169 
Total operating revenues638 532 
Operating Expenses
Fuel used in electric generation and purchased power127 82 
Cost of natural gas107 51 
Operation, maintenance and other178 108 
Depreciation and amortization80 74 
Property and other taxes101 92 
Total operating expenses593 407 
Operating Income45 125 
Other Income and Expenses, net6 
Interest Expense30 25 
Income Before Income Taxes21 105 
Income Tax (Benefit) Expense(56)14 
Net Income and Comprehensive Income$77 $91 

See Notes to Condensed Consolidated Financial Statements
30

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017

2016
Operating Revenues       
Regulated electric$371
 $390
 $1,036
 $1,053
Regulated natural gas90
 89
 360
 358
Nonregulated electric and other10
 10
 30
 22
Total operating revenues471
 489
 1,426
 1,433
Operating Expenses       
Fuel used in electric generation and purchased power – regulated100
 129
 283
 340
Fuel used in electric generation and purchased power – nonregulated13
 14
 42
 37
Cost of natural gas5
 6
 69
 64
Operation, maintenance and other124
 126
 385
 367
Depreciation and amortization63
 50
 193
 175
Property and other taxes65
 59
 204
 195
Impairment charges
 
 1
 
Total operating expenses370
 384
 1,177
 1,178
Gains on Sales of Other Assets and Other, net1
 1
 1
 2
Operating Income102
 106
 250
 257
Other Income and Expenses, net4
 3
 12
 6
Interest Expense22
 22
 67
 63
Income From Continuing Operations Before Income Taxes84
 87
 195
 200
Income Tax Expense From Continuing Operations28
 32
 67
 65
Income From Continuing Operations56
 55
 128
 135
(Loss) Income From Discontinued Operations, net of tax(1) 34
 (1) 36
Net Income and Comprehensive Income$55
 $89
 $127
 $171


PART I

FINANCIAL STATEMENTS
DUKE ENERGY OHIO, INC.
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)March 31, 2022December 31, 2021
ASSETS
Current Assets
Cash and cash equivalents$15 $13 
Receivables (net of allowance for doubtful accounts of $4 at 2022 and 2021)101 96 
Receivables from affiliated companies93 122 
Notes receivable from affiliated companies 15 
Inventory114 116 
Regulatory assets60 72 
Other23 57 
Total current assets406 491 
Property, Plant and Equipment
Cost11,818 11,725 
Accumulated depreciation and amortization(3,102)(3,106)
Generation facilities to be retired, net 
Net property, plant and equipment8,716 8,625 
Other Noncurrent Assets
Goodwill920 920 
Regulatory assets584 635 
Operating lease right-of-use assets, net18 19 
Other87 84 
Total other noncurrent assets1,609 1,658 
Total Assets$10,731 $10,774 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$379 $348 
Accounts payable to affiliated companies68 64 
Notes payable to affiliated companies123 103 
Taxes accrued219 275 
Interest accrued32 30 
Asset retirement obligations13 13 
Regulatory liabilities67 62 
Other73 82 
Total current liabilities974 977 
Long-Term Debt3,168 3,168 
Long-Term Debt Payable to Affiliated Companies25 25 
Other Noncurrent Liabilities
Deferred income taxes1,078 1,050 
Asset retirement obligations124 123 
Regulatory liabilities593 739 
Operating lease liabilities18 18 
Accrued pension and other post-retirement benefit costs109 109 
Other100 101 
Total other noncurrent liabilities2,022 2,140 
Commitments and Contingencies00
Equity
Common Stock, $8.50 par value, 120 million shares authorized; 90 million shares outstanding at 2022 and 2021762 762 
Additional paid-in capital3,100 3,100 
Retained earnings680 602 
Total equity4,542 4,464 
Total Liabilities and Equity$10,731 $10,774 

See Notes to Condensed Consolidated Financial Statements
31

(in millions)September 30, 2017
 December 31, 2016
ASSETS   
Current Assets   
Cash and cash equivalents$7
 $13
Receivables (net of allowance for doubtful accounts of $2 at 2017 and 2016)68
 71
Receivables from affiliated companies81
 129
Notes receivable from affiliated companies87
 94
Inventory139
 137
Regulatory assets57
 37
Other18
 37
Total current assets457
 518
Property, Plant and Equipment   
Cost8,509
 8,126
Accumulated depreciation and amortization(2,658) (2,579)
Net property, plant and equipment5,851
 5,547
Other Noncurrent Assets   
Goodwill920
 920
Regulatory assets510
 520
Other27
 23
Total other noncurrent assets1,457
 1,463
Total Assets$7,765
 $7,528
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$251
 $282
Accounts payable to affiliated companies59
 63
Notes payable to affiliated companies
 16
Taxes accrued157
 178
Interest accrued33
 19
Current maturities of long-term debt
 1
Asset retirement obligations6
 
Regulatory liabilities15
 21
Other74
 91
Total current liabilities595
 671
Long-Term Debt2,042
 1,858
Long-Term Debt Payable to Affiliated Companies25
 25
Other Noncurrent Liabilities   
Deferred income taxes1,512
 1,443
Asset retirement obligations75
 77
Regulatory liabilities232
 236
Accrued pension and other post-retirement benefit costs52
 56
Other134
 166
Total other noncurrent liabilities2,005
 1,978
Commitments and Contingencies
 
Equity   
Common stock, $8.50 par value, 120 million shares authorized; 90 million shares outstanding at 2017 and 2016762
 762
Additional paid-in capital2,670
 2,695
Accumulated deficit(334) (461)
Total equity3,098
 2,996
Total Liabilities and Equity$7,765
 $7,528

PART I

FINANCIAL STATEMENTS
DUKE ENERGY OHIO, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income$77 $91 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization81 75 
Equity component of AFUDC(3)(2)
Deferred income taxes(51)12 
Provision for rate refunds5 — 
(Increase) decrease in
Receivables(5)— 
Receivables from affiliated companies15 
Inventory2 
Other current assets48 (5)
Increase (decrease) in
Accounts payable88 
Accounts payable to affiliated companies (12)
Taxes accrued(56)(55)
Other current liabilities(89)(8)
Other assets(17)(16)
Other liabilities74 
Net cash provided by operating activities169 96 
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures(210)(220)
Notes receivable from affiliated companies29 37 
Other(6)(10)
Net cash used in investing activities(187)(193)
CASH FLOWS FROM FINANCING ACTIVITIES
Notes payable to affiliated companies21 101 
Other(1)— 
Net cash provided by financing activities20 101 
Net increase in cash and cash equivalents2 
Cash and cash equivalents at beginning of period13 14 
Cash and cash equivalents at end of period$15 $18 
Supplemental Disclosures:
Significant non-cash transactions:
Accrued capital expenditures$82 $84 

See Notes to Condensed Consolidated Financial Statements
32

 Nine Months Ended
 September 30,
(in millions)2017
 2016
CASH FLOWS FROM OPERATING ACTIVITIES   
Net income$127
 $171
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation and amortization196
 178
Equity component of AFUDC(8) (4)
Gains on sales of other assets(1) (2)
Impairment charges1
 
Deferred income taxes70
 36
Accrued pension and other post-retirement benefit costs3
 4
Contributions to qualified pension plans(4) 
Payments for asset retirement obligations(4) (4)
(Increase) decrease in   
Net realized and unrealized mark-to-market and hedging transactions1
 
Receivables3
 (1)
Receivables from affiliated companies48
 (3)
Inventory1
 (5)
Other current assets(8) 50
Increase (decrease) in   
Accounts payable(48) 13
Accounts payable to affiliated companies(4) (4)
Taxes accrued(21) (13)
Other current liabilities(6) (53)
Other assets(13) (8)
Other liabilities(2) (28)
Net cash provided by operating activities331
 327
CASH FLOWS FROM INVESTING ACTIVITIES   
Capital expenditures(457) (334)
Notes receivable from affiliated companies7
 (47)
Other(25) (21)
Net cash used in investing activities(475) (402)
CASH FLOWS FROM FINANCING ACTIVITIES   
Proceeds from the issuance of long-term debt182
 341
Payments for the redemption of long-term debt(2) (53)
Notes payable to affiliated companies(16) (103)
Dividends to parent(25) (25)
Other(1) 
Net cash provided by financing activities138
 160
Net (decrease) increase in cash and cash equivalents(6) 85
Cash and cash equivalents at beginning of period13
 14
Cash and cash equivalents at end of period$7
 $99
Supplemental Disclosures:   
Significant non-cash transactions:   
Accrued capital expenditures$65
 $56

PART I

FINANCIAL STATEMENTS
DUKE ENERGY OHIO, INC.
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended March 31, 2021 and 2022
Additional
CommonPaid-inRetainedTotal
(in millions)StockCapitalEarningsEquity
Balance at December 31, 2020$762 $2,776 $397 $3,935 
Net income— — 91 91 
Balance at March 31, 2021$762 $2,776 $488 $4,026 
Balance at December 31, 2021$762 $3,100 $602 $4,464 
Net income  77 77 
Other  1 1 
Balance at March 31, 2022$762 $3,100 $680 $4,542 
See Notes to Condensed Consolidated Financial Statements
33

   Additional
    
 Common
 Paid-in
 Accumulated
 Total
(in millions)Stock
 Capital
 Deficit
 Equity
Balance at December 31, 2015$762
 $2,720
 $(698) $2,784
Net income
 
 171
 171
Dividends to parent
 (25) 
 (25)
Contribution from parent
 
 9
 9
Balance at September 30, 2016$762
 $2,695
 $(518) $2,939
        
Balance at December 31, 2016$762
 $2,695
 $(461) $2,996
Net income
 
 127
 127
Dividends to parent
 (25) 
 (25)
Balance at September 30, 2017$762

$2,670

$(334)
$3,098
FINANCIAL STATEMENTS



PART I


DUKE ENERGY INDIANA, LLC
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
Operating Revenues$822 $745 
Operating Expenses
Fuel used in electric generation and purchased power319 217 
Operation, maintenance and other192 178 
Depreciation and amortization156 152 
Property and other taxes25 21 
Impairment of assets and other charges211 — 
Total operating expenses903 568 
Operating (Loss) Income(81)177 
Other Income and Expenses, net10 
Interest Expense45 50 
(Loss) Income Before Income Taxes(116)136 
Income Tax (Benefit) Expense(37)24 
Net (Loss) Income and Comprehensive (Loss) Income$(79)$112 

See Notes to Condensed Consolidated Financial Statements
34

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Operating Revenues$802
 $809
 $2,302
 $2,225
Operating Expenses       
Fuel used in electric generation and purchased power259
 242
 744
 690
Operation, maintenance and other175
 175
 541
 526
Depreciation and amortization120
 123
 336
 345
Property and other taxes19
 22
 56
 67
Impairment charges
 8
 
 8
Total operating expenses573
 570
 1,677
 1,636
Gain on Sale of Other Assets and Other, net1


 1
 
Operating Income230
 239

626

589
Other Income and Expenses, net10
 5
 27
 15
Interest Expense44
 45
 132
 136
Income Before Income Taxes196
 199

521

468
Income Tax Expense75
 70
 203
 159
Net Income$121
 $129

$318

$309
Other Comprehensive Loss, net of tax       
Reclassification into earnings from cash flow hedges
 
 
 (1)
Comprehensive Income$121
 $129

$318

$308


PART I

FINANCIAL STATEMENTS
DUKE ENERGY INDIANA, LLC
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)March 31, 2022December 31, 2021
ASSETS
Current Assets
Cash and cash equivalents$19 $
Receivables (net of allowance for doubtful accounts of $3 at 2022 and 2021)83 100 
Receivables from affiliated companies69 98 
Notes receivable from affiliated companies20 134 
Inventory430 418 
Regulatory assets301 277 
Other72 68 
Total current assets994 1,101 
Property, Plant and Equipment
Cost17,494 17,343 
Accumulated depreciation and amortization(5,693)(5,583)
Net property, plant and equipment11,801 11,760 
Other Noncurrent Assets
Regulatory assets1,077 1,278 
Operating lease right-of-use assets, net52 53 
Other295 296 
Total other noncurrent assets1,424 1,627 
Total Assets$14,219 $14,488 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$268 $282 
Accounts payable to affiliated companies187 221 
Taxes accrued131 73 
Interest accrued56 49 
Current maturities of long-term debt31 84 
Asset retirement obligations115 110 
Regulatory liabilities140 127 
Other108 105 
Total current liabilities1,036 1,051 
Long-Term Debt4,089 4,089 
Long-Term Debt Payable to Affiliated Companies150 150 
Other Noncurrent Liabilities
Deferred income taxes1,234 1,303 
Asset retirement obligations861 877 
Regulatory liabilities1,557 1,565 
Operating lease liabilities49 50 
Accrued pension and other post-retirement benefit costs168 167 
Investment tax credits177 177 
Other74 44 
Total other noncurrent liabilities4,120 4,183 
Commitments and Contingencies00
Equity
Member's Equity4,824 5,015 
Total Liabilities and Equity$14,219 $14,488 

See Notes to Condensed Consolidated Financial Statements
35

(in millions)September 30, 2017
 December 31, 2016
ASSETS   
Current Assets   
Cash and cash equivalents$22
 $17
Receivables (net of allowance for doubtful accounts of $1 at 2017 and 2016)74
 105
Receivables from affiliated companies83
 114
Notes receivable from affiliated companies29
 86
Inventory450
 504
Regulatory assets158
 149
Other34
 45
Total current assets850
 1,020
Property, Plant and Equipment   
Cost14,716
 14,241
Accumulated depreciation and amortization(4,592) (4,317)
Net property, plant and equipment10,124
 9,924
Other Noncurrent Assets   
Regulatory assets1,123
 1,073
Other170
 147
Total other noncurrent assets1,293
 1,220
Total Assets$12,267
 $12,164
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$188
 $263
Accounts payable to affiliated companies73
 74
Taxes accrued146
 31
Interest accrued54
 61
Current maturities of long-term debt3
 3
Asset retirement obligations58
 
Regulatory liabilities28
 40
Other111
 93
Total current liabilities661
 565
Long-Term Debt3,632
 3,633
Long-Term Debt Payable to Affiliated Companies150
 150
Other Noncurrent Liabilities   
Deferred income taxes1,979
 1,900
Asset retirement obligations735
 866
Regulatory liabilities735
 748
Accrued pension and other post-retirement benefit costs78
 71
Investment tax credits147
 137
Other65
 27
Total other noncurrent liabilities3,739
 3,749
Commitments and Contingencies
 
Equity   
Member's Equity4,085
 4,067
Total Liabilities and Equity$12,267
 $12,164

PART I

FINANCIAL STATEMENTS
DUKE ENERGY INDIANA, LLC
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income$(79)$112 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion157 153 
Equity component of AFUDC(7)(5)
Impairment of assets and other charges211 — 
Deferred income taxes(81)(12)
Payments for asset retirement obligations(15)(10)
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions 
Receivables4 (9)
Receivables from affiliated companies12 — 
Inventory(12)38 
Other current assets(22)(23)
Increase (decrease) in
Accounts payable19 
Accounts payable to affiliated companies(22)(16)
Taxes accrued74 71 
Other current liabilities14 20 
Other assets(10)
Other liabilities50 12 
Net cash provided by operating activities293 336 
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures(212)(186)
Purchases of debt and equity securities(16)(5)
Proceeds from sales and maturities of debt and equity securities13 
Notes receivable from affiliated companies131 (1)
Other(17)(7)
Net cash used in investing activities(101)(195)
CASH FLOWS FROM FINANCING ACTIVITIES
Payments for the redemption of long-term debt(53)— 
Notes payable to affiliated companies (131)
Distributions to parent(125)— 
Other(1)— 
Net cash used in financing activities(179)(131)
Net increase in cash and cash equivalents13 10 
Cash and cash equivalents at beginning of period6 
Cash and cash equivalents at end of period$19 $17 
Supplemental Disclosures:
Significant non-cash transactions:
Accrued capital expenditures$82 $74 
See Notes to Condensed Consolidated Financial Statements
36

 Nine Months Ended
 September 30,
(in millions)2017
 2016
CASH FLOWS FROM OPERATING ACTIVITIES   
Net income$318
 $309
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation, amortization and accretion339
 347
Equity component of AFUDC(20) (11)
Gain on sale of other assets and other, net(1) 
Impairment charges
 8
Deferred income taxes101
 122
Accrued pension and other post-retirement benefit costs4
 6
Payments for asset retirement obligations(26) (31)
(Increase) decrease in   
Receivables53
 16
Receivables from affiliated companies31
 (3)
Inventory54
 146
Other current assets18
 (105)
Increase (decrease) in   
Accounts payable(71) (14)
Accounts payable to affiliated companies(1) (1)
Taxes accrued115
 12
Other current liabilities(18) (85)
Other assets(24) (38)
Other liabilities32
 64
Net cash provided by operating activities904
 742
CASH FLOWS FROM INVESTING ACTIVITIES   
Capital expenditures(603) (540)
Purchases of available-for-sale securities(15) (12)
Proceeds from sales and maturities of available-for-sale securities6
 9
Notes receivable from affiliated companies57
 45
Other(40) (28)
Net cash used in investing activities(595) (526)
CASH FLOWS FROM FINANCING ACTIVITIES   
Proceeds from the issuance of long-term debt
 495
Payments for the redemption of long-term debt(3) (476)
Distributions to parent(300) (149)
Other(1) (1)
Net cash used in financing activities(304) (131)
Net increase in cash and cash equivalents5

85
Cash and cash equivalents at beginning of period17
 9
Cash and cash equivalents at end of period$22
 $94
Supplemental Disclosures:   
Significant non-cash transactions:   
Accrued capital expenditures$101
 $56

PART I

FINANCIAL STATEMENTS
DUKE ENERGY INDIANA, LLC
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended
March 31, 2021 and 2022
(in millions)Member's Equity
Balance at December 31, 2020$4,783 
Net income112 
Other
Balance at March 31, 2021$4,896 
Balance at December 31, 2021$5,015 
Net loss(79)
Distributions to parent(113)
Other1
Balance at March 31, 2022$4,824

See Notes to Condensed Consolidated Financial Statements
37

         Accumulated  
         Other  
         Comprehensive  
         Income  
   Additional
     Net Gains on
  
 Common
 Paid-in
 Retained
 Member's
 Cash Flow
 Total
(in millions)Stock
 Capital
 Earnings
 Equity
 Hedges
 Equity
Balance at December 31, 2015$1
 $1,384
 $2,450
 $
 $1
 $3,836
Net income
 
 
 309
 
 309
Other comprehensive loss
 
 
 
 (1) (1)
Distributions to parent
 
 
 (149) 
 (149)
Transfer to Member's Equity(1) (1,384) (2,450) 3,835
 
 
Balance at September 30, 2016$
 $
 $

$3,995
 $
 $3,995
            
Balance at December 31, 2016$
 $
 $
 $4,067
 $
 $4,067
Net income
 
 
 318
 
 318
Distributions to parent
 
 
 (300) 
 (300)
Balance at September 30, 2017$
 $
 $

$4,085
 $
 $4,085
FINANCIAL STATEMENTS



PART I


PIEDMONT NATURAL GAS COMPANY, INC.
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
Operating Revenues$805 $606 
Operating Expenses
Cost of natural gas374 225 
Operation, maintenance and other95 78 
Depreciation and amortization54 48 
Property and other taxes16 14 
Total operating expenses539 365 
Operating Income266 241 
Other Income and Expenses, net13 17 
Interest Expense32 29 
Income Before Income Taxes247 229 
Income Tax Expense33 26 
Net Income and Comprehensive Income$214 $203 

See Notes to Condensed Consolidated Financial Statements
38

 Three Months Ended Nine Months Ended
 September 30, September 30,
 2017
 2016
 2017
 2016
Operating Revenues       
Regulated natural gas$181
 $155
 $877
 $815
Nonregulated natural gas and other2
 3
 7
 8
Total operating revenues183
 158
 884
 823
Operating Expenses       
Cost of natural gas63
 42
 333
 289
Operation, maintenance and other73
 74
 226
 221
Depreciation and amortization38
 35
 109
 103
Property and other taxes13
 11
 38
 33
Impairment charges
 
 7
 
Total operating expenses187
 162
 713
 646
Operating (Loss) Income(4) (4) 171
 177
Equity in earnings of unconsolidated affiliates3
 2
 8
 25
Other income and expenses, net
 (1) (1) (1)
Total other income and expenses3
 1
 7
 24
Interest Expense20
 17
 59
 50
(Loss) Income Before Income Taxes(21) (20) 119
 151
Income Tax (Benefit) Expense(10) (8) 43
 57
Net (Loss) Income$(11) $(12) $76
 $94
Other Comprehensive Income, net of tax       
Reclassification into earnings from hedging activities of equity method investments
 1
 
 1
Comprehensive (Loss) Income$(11) $(11) $76
 $95

PART I

FINANCIAL STATEMENTS
PIEDMONT NATURAL GAS COMPANY, INC.
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)March 31, 2022December 31, 2021
ASSETS
Current Assets
Receivables (net of allowance for doubtful accounts of $17 at 2022 and $15 at 2021)$303 $318 
Receivables from affiliated companies13 11 
Inventory51 109 
Regulatory assets133 141 
Other16 
Total current assets516 588 
Property, Plant and Equipment
Cost10,110 9,918 
Accumulated depreciation and amortization(1,952)(1,899)
Facilities to be retired, net10 11 
Net property, plant and equipment8,168 8,030 
Other Noncurrent Assets
Goodwill49 49 
Regulatory assets349 316 
Operating lease right-of-use assets, net15 16 
Investments in equity method unconsolidated affiliates97 95 
Other307 288 
Total other noncurrent assets817 764 
Total Assets$9,501 $9,382 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$170 $196 
Accounts payable to affiliated companies52 40 
Notes payable to affiliated companies360 518 
Taxes accrued79 63 
Interest accrued35 37 
Regulatory liabilities98 56 
Other73 81 
Total current liabilities867 991 
Long-Term Debt2,969 2,968 
Other Noncurrent Liabilities
Deferred income taxes831 815 
Asset retirement obligations22 22 
Regulatory liabilities1,041 1,058 
Operating lease liabilities13 14 
Accrued pension and other post-retirement benefit costs7 
Other188 158 
Total other noncurrent liabilities2,102 2,074 
Commitments and Contingencies00
Equity
Common stock, no par value: 100 shares authorized and outstanding at 2022 and 20211,635 1,635 
Retained earnings1,928 1,714 
Total equity3,563 3,349 
Total Liabilities and Equity$9,501 $9,382 

See Notes to Condensed Consolidated Financial Statements
39

(in millions)September 30, 2017
 December 31, 2016
ASSETS   
Current Assets   
Cash and cash equivalents$12
 $25
Receivables (net of allowance for doubtful accounts of $2 at 2017 and $3 at 2016)77
 232
Receivables from affiliated companies8
 7
Inventory53
 66
Regulatory assets133
 124
Income taxes receivable99
 9
Other31
 12
Total current assets413
 475
Property, Plant and Equipment   
Cost6,579
 6,174
Accumulated depreciation and amortization(1,454) (1,360)
Net property, plant and equipment5,125
 4,814
Other Noncurrent Assets   
Goodwill49
 49
Regulatory assets322
 373
Investments in equity method unconsolidated affiliates76
 212
Other11
 21
Total other noncurrent assets458
 655
Total Assets$5,996
 $5,944
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$98
 $155
Accounts payable to affiliated companies7
 8
Notes payable and commercial paper
 330
Notes payable to affiliated companies284
 
Taxes accrued30
 67
Interest accrued24
 33
Current maturities of long-term debt
 35
Regulatory liabilities3
 
Other72
 102
Total current liabilities518
 730
Long-Term Debt2,036
 1,786
Other Noncurrent Liabilities   
Deferred income taxes1,046
 931
Asset retirement obligations15
 14
Regulatory liabilities627
 608
Accrued pension and other post-retirement benefit costs14
 14
Other141
 189
Total other noncurrent liabilities1,843
 1,756
Commitments and Contingencies
 
Equity   
Common stock, no par value: 100 shares authorized and outstanding at 2017 and 2016860
 860
Retained earnings739
 812
Total equity1,599
 1,672
Total Liabilities and Equity$5,996
 $5,944

PART I

FINANCIAL STATEMENTS
PIEDMONT NATURAL GAS COMPANY, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
March 31,
(in millions)20222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income$214 $203 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization55 48 
Equity component of AFUDC(1)(6)
Deferred income taxes(11)(12)
Equity in earnings from unconsolidated affiliates(2)(2)
Provision for rate refunds(2)— 
(Increase) decrease in
Receivables15 (8)
Receivables from affiliated companies(2)— 
Inventory58 31 
Other current assets7 66 
Increase (decrease) in
Accounts payable(16)(63)
Accounts payable to affiliated companies12 (21)
Taxes accrued16 45 
Other current liabilities36 (16)
Other assets(13)
Other liabilities (2)
Net cash provided by operating activities366 265 
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures(199)(200)
Notes receivable from affiliated companies (198)
Other(8)(8)
Net cash used in investing activities(207)(406)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt 347 
Notes payable to affiliated companies(158)(530)
Capital contributions from parent 325 
Other(1)— 
Net cash (used in) provided by financing activities(159)142 
Net increase in cash and cash equivalents 
Cash and cash equivalents at beginning of period — 
Cash and cash equivalents at end of period$ $
Supplemental Disclosures:
Significant non-cash transactions:
Accrued capital expenditures$87 $106 

See Notes to Condensed Consolidated Financial Statements
40

 Nine Months Ended
 September 30,
(in millions)2017
 2016
CASH FLOWS FROM OPERATING ACTIVITIES   
Net income$76
 $94
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation and amortization112
 111
Impairment charges7
 
Deferred income taxes127
 50
Equity in earnings from unconsolidated affiliates(8) (25)
Accrued pension and other post-retirement benefit costs9
 2
Contributions to qualified pension plans
 (1)
Payments for asset retirement obligations
 (5)
(Increase) decrease in   
Receivables157
 88
Receivables from affiliated companies(1) 
Inventory13
 33
Other current assets(129) (50)
Increase (decrease) in   
Accounts payable(52) 11
Accounts payable to affiliated companies(1) 
Taxes accrued(37) 12
Other current liabilities(21) (11)
Other assets(9) 55
Other liabilities(7) 17
Net cash provided by operating activities236
 381
CASH FLOWS FROM INVESTING ACTIVITIES   
Capital expenditures(407) (416)
Contributions to equity method investments(12) (40)
Other2
 (2)
Net cash used in investing activities(417) (458)
CASH FLOWS FROM FINANCING ACTIVITIES   
Proceeds from the:   
Issuance of long-term debt250
 296
Issuance of common stock
 121
Payments for the redemption of long-term debt(35) (40)
Notes payable and commercial paper(330) (210)
Notes payable to affiliated companies284
 
Dividends paid
 (82)
Other(1) 
Net cash provided by financing activities168
 85
Net (decrease) increase in cash and cash equivalents(13) 8
Cash and cash equivalents at beginning of period25
 33
Cash and cash equivalents at end of period$12
 $41
Supplemental Disclosures:   
Significant non-cash transactions:   
Accrued capital expenditures$47
 $30
Transfer of ownership interest of certain equity method investees to parent149
 

PART I

FINANCIAL STATEMENTS
PIEDMONT NATURAL GAS COMPANY, INC.
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended March 31, 2021 and 2022
CommonRetainedTotal
(in millions)StockEarningsEquity
Balance at December 31, 2020$1,310 $1,405 $2,715 
Net income— 203 203 
Contribution from parent325 — 325 
Balance at March 31, 2021$1,635 $1,608 $3,243 
Balance at December 31, 2021$1,635 $1,714 $3,349 
Net income 214 214 
Balance at March 31, 2022$1,635 $1,928 $3,563 
     Accumulated  
     Other  
     Comprehensive  
     Income  
     Net Loss on
  
     Hedging Activities
  
 Common
 Retained
 of Unconsolidated
 Total
(in millions)Stock
 Earnings
 Affiliates
 Equity
Balance at December 31, 2015$728
 $731
 $(1) $1,458
Net income
 94
 
 94
Other comprehensive income
 
 1
 1
Common stock issuances, including dividend reinvestments and employee benefits121
 
 
 121
Common stock dividends
 (87) 
 (87)
Balance at September 30, 2016$849
 $738
 $
 $1,587
        
Balance at December 31, 2016$860
 $812
 $
 $1,672
Net income
 76
 
 76
Transfer of ownership interest of certain equity method investees to parent
 (149) 
 (149)
Balance at September 30, 2017$860
 $739
 $
 $1,599



PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
CombinedSee Notes to Condensed Consolidated Financial Statements(Unaudited)

41


FINANCIAL STATEMENTSORGANIZATION AND BASIS OF PRESENTATION

Index to Combined Notes to Condensed Consolidated Financial Statements
The unaudited notes to the condensed consolidated financial statementsCondensed Consolidated Financial Statements that follow are a combined presentation. The following list indicates the registrants to which the footnotes apply.
 Applicable Notes
Registrant1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Duke Energy Corporation                  
Duke Energy Carolinas, LLC                     
Progress Energy, Inc.                    
Duke Energy Progress, LLC                     
Duke Energy Florida, LLC                     
Duke Energy Ohio, Inc.                    
Duke Energy Indiana, LLC                     
Piedmont Natural Gas Company, Inc.                  
Applicable Notes
Registrant12345678910111213141516
Duke Energy
Duke Energy Carolinas
Progress Energy
Duke Energy Progress
Duke Energy Florida
Duke Energy Ohio
Duke Energy Indiana
Piedmont
Tables within the notes may not sum across due to (i) Progress Energy's consolidation of Duke Energy Progress, Duke Energy Florida and other subsidiaries that are not registrants and (ii) subsidiaries that are not registrants but included in the consolidated Duke Energy balances and (iii) the Piedmont registrant not included in the consolidated Duke Energy results for the three and nine months ended September 30, 2016, as Piedmont results were not consolidated by Duke Energy until after the acquisition date of October 3, 2016.balances.
1. ORGANIZATION AND BASIS OF PRESENTATION
NATURE OF OPERATIONS AND BASIS OF CONSOLIDATION
Duke Energy Corporation (collectively with its subsidiaries, Duke Energy) is an energy company headquartered in Charlotte, North Carolina, subject to regulation by the Federal Energy Regulatory Commission (FERC). Duke Energy operates in the United States (U.S.) primarily through its direct and indirect subsidiaries. Certain Duke Energy subsidiaries are also subsidiary registrants, including Duke Energy Carolinas, LLC (Duke Energy Carolinas); Progress Energy, Inc. (Progress Energy); Duke Energy Progress, LLC (Duke Energy Progress); Duke Energy Florida, LLC (Duke Energy Florida); Duke Energy Ohio, Inc. (Duke Energy Ohio), Duke Energy Indiana, LLC (Duke Energy Indiana) and Piedmont Natural Gas Company, Inc. (Piedmont). When discussing Duke Energy’s consolidated financial information, it necessarily includes the results of its separate subsidiary registrants (collectively referred to as the Subsidiary Registrants), which, along with Duke Energy, are collectively referred to as the Duke Energy Registrants.
On October 3, 2016, Duke Energy completed the acquisition of Piedmont. Piedmont's results of operations and cash flows are included in the accompanying condensed consolidated financial statements of Duke Energy for the three and nine months ended September 30, 2017, but not for the three and nine months ended September 30, 2016, as Piedmont's earnings and cash flows are only included in Duke Energy's consolidated results subsequent to the acquisition date. See Note 2 for additional information regarding the acquisition.
In December 2016, Duke Energy completed an exit of the Latin American market to focus on its domestic regulated business, which was further bolstered by the acquisition of Piedmont. The sale of the International Energy business segment, excluding an equity method investment in National Methanol Company (NMC), was completed through two transactions including a sale of assets in Brazil to China Three Gorges (Luxembourg) Energy S.à.r.l. (China Three Gorges) and a sale of Duke Energy's remaining Latin American assets in Peru, Chile, Ecuador, Guatemala, El Salvador and Argentina to ISQ Enerlam Aggregator, L.P. and Enerlam (UK) Holding Ltd. (I Squared Capital) (collectively, the International Disposal Group). See Note 2 for additional information on the sale of International Energy.
The results of operations of the International Disposal Group have been classified as Discontinued Operations on the Condensed Consolidated Statements of Operations. Duke Energy has elected to present cash flows of discontinued operations combined with cash flows of continuing operations. Unless otherwise noted, the notes to these Condensed Consolidated Financial Statements exclude amounts related to discontinued operations. See Note 2 for additional information.
These Condensed Consolidated Financial Statements include, after eliminating intercompany transactions and balances, the accounts of the Duke Energy Registrants and subsidiaries where the respective Duke Energy Registrants have control. These Condensed Consolidated Financial Statements also reflect the Duke Energy Registrants’ proportionate share of certain jointly owned generation and transmission facilities. Substantially all of the Subsidiary Registrants' operations qualify for regulatory accounting.
Duke Energy Carolinas is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of North Carolina and South Carolina. Duke Energy Carolinas is subject to the regulatory provisions of the North Carolina Utilities Commission (NCUC), Public Service Commission of South Carolina (PSCSC), U.S. Nuclear Regulatory Commission (NRC) and FERC.
Progress Energy is a public utility holding company headquartered in Raleigh, North Carolina, subject to regulation by FERC. Progress Energy conducts operations through its wholly owned subsidiaries, Duke Energy Progress and Duke Energy Florida.
Duke Energy Progress is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of North Carolina and South Carolina. Duke Energy Progress is subject to the regulatory provisions of the NCUC, PSCSC, NRC and FERC.
Duke Energy Florida is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of Florida. Duke Energy Florida is subject to the regulatory provisions of the Florida Public Service Commission (FPSC), NRC and FERC.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Duke Energy Ohio is a regulated public utility primarily engaged in the transmission and distribution of electricity in portions of Ohio and Kentucky, the generation and sale of electricity in portions of Kentucky and the transportation and sale of natural gas in portions of Ohio and Kentucky. Duke Energy Ohio conducts competitive auctions for retail electricity supply in Ohio whereby the energy price is recovered from retail customers and recorded in Operating Revenues on the Condensed Consolidated Statements of Operations and Comprehensive Income. Operations in Kentucky are conducted through its wholly owned subsidiary, Duke Energy Kentucky, Inc. (Duke Energy Kentucky). References herein to Duke Energy Ohio collectively include Duke Energy Ohio and its subsidiaries, unless otherwise noted. Duke Energy Ohio is subject to the regulatory provisions of the Public Utilities Commission of Ohio (PUCO), Kentucky Public Service Commission (KPSC) and FERC.
Duke Energy Indiana is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of Indiana. Duke Energy Indiana is subject to the regulatory provisions of the Indiana Utility Regulatory Commission (IURC) and FERC.
Piedmont is a regulated public utility primarily engaged in the distribution of natural gas in portions of North Carolina, South Carolina and Tennessee. Piedmont is subject to the regulatory provisions of the NCUC, PSCSC, Tennessee Public Utility Commission (formerly the Tennessee Regulatory Authority) (TPUC) and FERC.
BASIS OF PRESENTATION
These Condensed Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles (GAAP) in the U.S.GAAP for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, these Condensed Consolidated Financial Statements do not include all information and notes required by GAAP in the U.S. for annual financial statements. Since the interim Condensed Consolidated Financial Statements and Notes do not include all information and notes required by GAAP in the U.S. for annual financial statements the Condensed Consolidated Financial Statements and other information included in this quarterly report should be read in conjunction with the Consolidated Financial Statements and Notes in the Duke Energy Registrants’ combined Annual Report on Form 10-K for the year ended December 31, 2016, and the Consolidated Financial Statements and Notes in the Piedmont Annual Report on Form 10‑K for the year ended October 31, 2016.
Effective November 1, 2016, Piedmont's fiscal year-end was changed from October 31 to December 31, the year-end of Duke Energy. A transition report was filed on Form 10-Q (Form 10-QT) as of December 31, 2016, for the transition period from November 1, 2016, to December 31, 2016.2021.
The information in these combined notes relates to each of the Duke Energy Registrants as noted in the Index to Combined Notes to Condensed Consolidated Financial Statements. However, none of the registrants make any representations as to information related solely to Duke Energy or the subsidiaries of Duke Energy other than itself.
These Condensed Consolidated Financial Statements, in the opinion of the respective companies’ management, reflect all normal recurring adjustments necessary to fairly present the financial position and results of operations of each of the Duke Energy Registrants. Amounts reported in Duke Energy’s interim Condensed Consolidated Statements of Operations and each of the Subsidiary Registrants’ interim Condensed Consolidated Statements of Operations and Comprehensive Income are not necessarily indicative of amounts expected for the respective annual periods due to effects of seasonal temperature variations on energy consumption, regulatory rulings, timing of maintenance on electric generating units, changes in mark-to-market valuations, changing commodity prices and other factors.
In preparing financial statements that conform to GAAP, management must make estimates and assumptions that affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.
Certain prior year amountsBASIS OF CONSOLIDATION
These Condensed Consolidated Financial Statements include, after eliminating intercompany transactions and balances, the accounts of the Duke Energy Registrants and subsidiaries or VIEs where the respective Duke Energy Registrants have been reclassified to conform tocontrol. See Note 11 for additional information on VIEs. These Condensed Consolidated Financial Statements also reflect the current year presentation.Duke Energy Registrants’ proportionate share of certain jointly owned generation and transmission facilities.
UNBILLED REVENUENONCONTROLLING INTEREST
Revenues on salesDuke Energy maintains a controlling financial interest in certain less than wholly owned nonregulated subsidiaries. As a result, Duke Energy consolidates these subsidiaries and presents the third-party investors' portion of electricityDuke Energy's net income (loss), net assets and natural gas are recognized when servicecomprehensive income (loss) as noncontrolling interest. Noncontrolling interest is provided or the product is delivered. Unbilled revenues are recognized by applying customer billing rates to the estimated volumes of energy and natural gas delivered but not yet billed. Unbilled revenues can vary significantly from period to periodincluded as a resultcomponent of seasonality, weather, customer usage patterns, customer mix, average price in effect for customer classes, timing of rendering customer bills, meter reading schedules, and the impact of weather normalization or margin decoupling mechanisms.
Unbilled revenues are included within Receivables and Receivables of variable interest entities (VIEs)equity on the Condensed Consolidated Balance Sheets as shownSheets.
Several operating agreements of Duke Energy's subsidiaries with noncontrolling interest are subject to allocations of earnings, tax attributes and cash flows in accordance with contractual agreements that vary throughout the lives of the subsidiaries. Therefore, Duke Energy and the other investors' (the owners) interests in the following table.
subsidiaries are not fixed, and the subsidiaries apply the Hypothetical Liquidation at Book Value (HLBV) method in allocating income or loss and other comprehensive income or loss (all measured on a pretax basis) to the owners. The HLBV method measures the amounts that each owner would hypothetically claim at each balance sheet reporting date, including tax benefits realized by the owners over the IRS recapture period, upon a hypothetical liquidation of the subsidiary at the net book value of its underlying assets. The change in the amount that each owner would hypothetically receive at the reporting date compared to the amount it would have received on the previous reporting date represents the amount of income or loss allocated to each owner for the reporting period.
(in millions)September 30, 2017
 December 31, 2016
Duke Energy$771
 $831
Duke Energy Carolinas307
 313
Progress Energy216
 161
Duke Energy Progress113
 102
Duke Energy Florida103
 59
Duke Energy Ohio2
 2
Duke Energy Indiana29
 32
Piedmont4
 77

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Additionally,During September 2021, Duke Energy Ohiocompleted the initial minority interest investment in a portion of Duke Energy Indiana to an affiliate of GIC. GIC's ownership interest in Duke Energy Indiana represents a noncontrolling interest. See Note 2 for additional information on the sale.
Other operating agreements of Duke Energy's subsidiaries with noncontrolling interest allocate profit and loss based on their pro rata shares of the ownership interest in the respective subsidiary. Therefore, Duke Energy allocates net income or loss and other comprehensive income or loss of these subsidiaries to the owners based on their pro rata shares.
42

FINANCIAL STATEMENTSORGANIZATION AND BASIS OF PRESENTATION

The following table presents allocated losses to noncontrolling interest for the three months ended March 31, 2022, and 2021.
Three Months Ended March 31,
(in millions)20222021
Noncontrolling Interest Allocation of Income
Allocated losses to noncontrolling tax equity members utilizing the HLBV method$24 $43 
Allocated losses to noncontrolling members based on pro rata shares of ownership13 
Total Noncontrolling Interest Allocated Losses$37 $51 
CASH, CASH EQUIVALENTS AND RESTRICTED CASH
Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress and Duke Energy Indiana sell nearly all of their retail accounts receivableFlorida have restricted cash balances related primarily to an affiliate, Cinergy Receivables Company, LLC (CRC), on a revolving basis. These transfers of receivablescollateral assets, escrow deposits and VIEs. See Notes 9 and 11 for additional information. Restricted cash amounts are accounted for as salesincluded in Other within Current Assets and include receivables for unbilled revenues. Accordingly, the receivables sold are not reflectedOther Noncurrent Assets on the Condensed Consolidated Balance Sheets of Duke Energy Ohio and Duke Energy Indiana. See Note 13 for further information. These receivables for unbilled revenues are shown in the table below.
(in millions)September 30, 2017
 December 31, 2016
Duke Energy Ohio$70
 $97
Duke Energy Indiana119
 123
AMOUNTS ATTRIBUTABLE TO CONTROLLING INTERESTS
For the three and nine months ended September 30, 2017, the Loss from Discontinued Operations, net of tax on Duke Energy's Condensed Consolidated Statements of Operations is entirely attributable to controlling interests.Sheets. The following table presents Net Income Attributable to Duke Energy Corporation for continuing operationsthe components of cash, cash equivalents and discontinued operations forrestricted cash included in the three and nine months ended September 30, 2016.
Condensed Consolidated Balance Sheets.
 Three Months Ended Nine Months Ended
(in millions)September 30, 2016 September 30, 2016
Income from Continuing Operations$1,001
 $2,202
Income from Continuing Operations Attributable to Noncontrolling Interests2
 5
Income from Continuing Operations Attributable to Duke Energy Corporation$999
 $2,197
Income from Discontinued Operations, net of tax$180
 $190
Income from Discontinued Operations Attributable to Noncontrolling Interests, net of tax3
 8
Income from Discontinued Operations Attributable to Duke Energy Corporation, net of tax$177
 $182
Net Income$1,181
 $2,392
Net Income Attributable to Noncontrolling Interests5
 13
Net Income Attributable to Duke Energy Corporation$1,176
 $2,379
March 31, 2022December 31, 2021
DukeDukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyDukeEnergyProgressEnergyEnergy
EnergyCarolinasEnergyProgressFloridaEnergyCarolinasEnergyProgressFlorida
Current Assets
Cash and cash equivalents$853 $4 $63 $42 $13 $343 $$70 $35 $23 
Other151 4 28 13 13 170 — 39 — 39 
Other Noncurrent Assets
Other16 1 4 4  — 
Total cash, cash equivalents and restricted cash$1,020 $9 $95 $59 $26 $520 $$113 $39 $62 
INVENTORY
Inventory is used for operations and is recorded primarily using the average cost method. Inventory related to regulated operations is valued at historical cost. Inventory related to nonregulated operations is valued at the lower of cost or market. Materials and supplies are recorded as inventory when purchased and subsequently charged to expense or capitalized to property, plant and equipment when installed. Inventory, including excess or obsolete inventory, is written-down to the lower of cost or market value. Once inventory has been written-down, it creates a new cost basis for the inventory that is not subsequently written-up. Provisions for inventory write-offs were not material at September 30, 2017,March 31, 2022, and December 31, 2016.2021. The components of inventory are presented in the tables below.
 September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
 (in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Materials and supplies$2,335
 $767
 $1,132
 $780
 $351
 $83
 $312
 $2
Coal581
 197
 231
 130
 101
 17
 136
 
Natural gas, oil and other fuel349
 36
 221
 108
 114
 39
 2
 51
Total inventory$3,265
 $1,000
 $1,584
 $1,018
 $566
 $139
 $450
 $53
December 31, 2016 March 31, 2022
  Duke
   Duke
 Duke
 Duke
 Duke
  DukeDukeDukeDukeDuke
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Materials and supplies$2,374
 $767
 $1,167
 $813
 $354
 $84
 $312
 $1
Materials and supplies$2,455 $810 $1,089 $744 $345 $89 $320 $14 
Coal774
 251
 314
 148
 166
 19
 190
 
Coal469 196 149 93 56 16 108  
Natural gas, oil and other fuel374
 37
 236
 115
 121
 34
 2
 65
Natural gas, oil and other fuel247 34 165 103 62 9 2 37 
Total inventory$3,522
 $1,055
 $1,717
 $1,076
 $641
 $137
 $504
 $66
Total inventory$3,171 $1,040 $1,403 $940 $463 $114 $430 $51 
EXCISE TAXES
Certain excise taxes levied by state or local governments are required to be paid even if not collected from the customer. These taxes are recognized on a gross basis. Otherwise, excise taxes are accounted for on a net basis.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Excise taxes accounted for on a gross basis as both operating revenues and property and other taxes on the Condensed Consolidated Statements of Operations were as follows.
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 2017
 2016
Duke Energy$107

$107

$289

$285
Duke Energy Carolinas9
 6
 27
 21
Progress Energy67
 65
 168
 161
Duke Energy Progress5
 4
 14
 13
Duke Energy Florida62
 61
 154
 148
Duke Energy Ohio24
 26
 75
 77
Duke Energy Indiana6
 10
 16
 26
Piedmont1
 1
 3
 2
 December 31, 2021
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Materials and supplies$2,397 $793 $1,067 $729 $338 $80 $311 $14 
Coal486 195 167 94 73 19 105 — 
Natural gas, oil and other fuel316 38 164 98 66 17 95 
Total inventory$3,199 $1,026 $1,398 $921 $477 $116 $418 $109 
NEW ACCOUNTING STANDARDS
TheNo new accounting standards adopted for 2017 and 2016 had no material impact on the presentation or results of operations, cash flows or financial position of the Duke Energy Registrants. While immaterial, adoption of the following accounting standards had the most significant impact on the Duke Energy results of operations, cash flows and financial position for the nine months ended September 30, 2017.
Stock-Based Compensation and Income Taxes. In first quarter 2017, Duke Energy adopted Financial Accounting Standards Board (FASB) guidance, which revised the accounting for stock-based compensation and the associated income taxes. The adopted guidance changes certain aspects of accounting for stock-based payment awards to employees including the accounting for income taxes and classification on the Condensed Consolidated Statements of Cash Flows. The primary impact to Duke Energy as a result of implementing this guidance was a cumulative-effect adjustment to retained earnings for tax benefits not previously recognized and additional income tax expense for the nine months ended September 30, 2017. See the Duke Energy Condensed Consolidated Statements of Changes in Equity for further information.
Goodwill Impairment. In January 2017, the FASB issued revised guidance for the subsequent measurement of goodwill. Under the guidance, a company will recognize an impairment to goodwill for the amount by which a reporting unit's carrying value exceeds the reporting unit's fair value, not to exceed the amount of goodwill allocated to that reporting unit. Duke Energy early adopted this guidance for the 2017 annual goodwill impairment test.
The following new Accounting Standards Updates (ASUs) have been issued, but have not yet beenwere adopted by Duke Energy, as of September 30, 2017.
Retirement Benefits. In March 2017, the FASB issued revised accounting guidance for the presentation of net periodic costs related to benefit plans. Current GAAP permits the aggregation of all the components of net periodic costs on the income statement and does not require the disclosure of the location of net periodic costs on the Condensed Consolidated Statement of Operations. Under the amended guidance, the service cost component of net periodic costs must be included within Operating income within the same line as other compensation expenses. All other components of net periodic costs must be outside of Operating income. In addition, the updated guidance permits only the service cost component of net periodic costs to be capitalized to Inventory or Property, Plant and Equipment. This represents a change from current GAAP, which permits all components of net periodic costs to be capitalized. These amendments should be applied retrospectively for the presentation of the various components of net periodic costs and prospectively for the change in eligible costs to be capitalized. The guidance allows for a practical expedient that permits a company to use amounts disclosed in prior-period financial statements as the estimation basis for applying the retrospective presentation requirements.
For Duke Energy, this guidance is effective for interim and annual periods beginning January 1, 2018. Duke Energy currently presents the total non-capitalized net periodic costs within Operation, maintenance and other on the Condensed Consolidated Statement of Operations. The adoption of this guidance will result in a retrospective change to reclassify the presentation of the non-service cost (benefit) components of net periodic costs to Other income and expenses. Duke Energy intends to utilize the practical expedient for retrospective presentation. The change in net periodic costs eligible for capitalization is applicable prospectively. Since Duke Energy’s service cost component is expected to be greater than the total net periodic costs, the change will result in increased capitalization of net periodic costs, higher Operation, maintenance and other and higher Other income and expenses. The resulting impact to Duke Energy is expected to be an immaterial increase in net income resulting from the limitation of eligible capitalization of net periodic costs to the service cost component, which is larger than the total net periodic costs.
Revenue from Contracts with Customers. In May 2014, the FASB issued revised accounting guidance for revenue recognition from contracts with customers. The core principle of this guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The amendments in this update also require disclosure of sufficient information to allow users to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Duke Energy has identified material revenue streams, which served as the basis for accounting analysis and documentation of the impact of this guidance on revenue recognition. The accounting analysis included reviewing representative contracts and tariffs for each material revenue stream. Most of Duke Energy’s revenue is expected to be in scope of the new guidance. The majority of our sales, including energy provided to residential customers, are from tariff offerings that provide natural gas or electricity without a defined contractual term ("at-will"). For such arrangements, Duke Energy expects that the revenue from contracts with customers will be equivalent to the electricity or natural gas supplied and billed in that period (including estimated billings). As such, Duke Energy does not expect that there will be a significant shift in the timing or pattern of revenue recognition for such sales.
Also included in the accounting analysis was the evaluation of certain long-term revenue streams including electric wholesale contracts and renewables power purchase agreements (PPAs) under this guidance. For such arrangements, Duke Energy does not expect material changes to the pattern of revenue recognition on the registrants. In addition, the power and utilities industry revenue recognition task force released several draft positions on specific industry issues in October 2017 for public comment. Duke Energy has been working closely with the industry task force and will be reviewing these updated positions to evaluate the impact, if any, on Duke Energy’s specific contracts and preliminary conclusions to date. The evaluation of other revenue streams is ongoing along with consideration of potential revisions to processes, policies and controls, primarily related to evaluating supplemental disclosures required as a result of adopting this guidance. Some revenue arrangements, such as alternative revenue programs and certain PPAs accounted for as leases, are excluded from the scope of this guidance and, therefore, will be accounted for and evaluated for separate presentation and disclosure under other relevant accounting guidance.
Duke Energy continues to evaluate what information would be most useful for users of the financial statements, including information already provided in disclosures outside of the financial statement footnotes. These additional disclosures could include the disaggregation of revenues by geographic location, type of service, customer class or by duration of contract ("at-will" versus contracted revenue).
Duke Energy intends to use the modified retrospective method of adoption effective January 1, 2018. Under the modified retrospective method of adoption, prior year reported results are not restated and a cumulative-effect adjustment, if applicable, is recorded to retained earnings at January 1, 2018, as if the standard had always been in effect. In addition, disclosures, if applicable, include a comparison to what would have been reported for 2018 under the previous revenue recognition rules to assist financial statement users in understanding how revenue recognition has changed as a result of this standard and to facilitate comparability with prior year reported results, which are not restated under the modified retrospective approach as described above. Duke Energy also plans to utilize certain practical expedients including applying this guidance to open contracts at the date of adoption and recognizing revenues for certain contracts under the invoice practical expedient, which allows revenue recognition to be consistent with invoiced amounts (including estimated billings) provided certain criteria are met, including consideration of whether the invoiced amounts reasonably represent the value provided to customers. While the adoption of this guidance, including the cumulative-effect adjustment, is not expected to have a material impact on either the timing or amount of revenues recognized in Duke Energy's financial statements, Duke Energy anticipates additional disclosures around the nature, amount, timing and uncertainty of our revenues and cash flows arising from contracts with customers and will continue to evaluate the requirements, as well as any additional clarifying guidance that may be issued.
Leases. In February 2016, the FASB issued revised accounting guidance for leases. The core principle of this guidance is that a lessee should recognize the assets and liabilities that arise from leases on the balance sheet.
For Duke Energy, this guidance is effective for interim and annual periods beginning January 1, 2019, although it can be early adopted. The guidance is applied using a modified retrospective approach. Duke Energy is currently evaluating the financial statement impact of adopting this standard and is continuing to monitor industry implementation issues, including easements, pole attachments and renewable PPAs. Other than an expected increase in assets and liabilities, the ultimate impact of the new standard has not yet been determined. Significant system enhancements, including additional processes and controls, may be required to facilitate the identification, tracking and reporting of potential leases based upon requirements of the new lease standard.
Statement of Cash Flows. In November 2016, the FASB issued revised accounting guidance to reduce diversity in practice for the presentation and classification of restricted cash on the statement of cash flows. Under the updated guidance, restricted cash and restricted cash equivalents will be included within beginning-of-period and end-of-period cash and cash equivalents on the statement of cash flows.
For Duke Energy, this guidance is effective for the interim and annual periods beginning January 1, 2018. The guidance will be applied using a retrospective transition method to each period presented. Upon adoption by Duke Energy, the revised guidance will result in a change to the amount of cash and cash equivalents and restricted cash explained when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. Prior to adoption, the Duke Energy Registrants reflect changes in non-current restricted cash within Cash Flows from Investing Activities and changes in current restricted cash within Cash Flows from Operating Activities on the Condensed Consolidated Statement of Cash Flows.2022.
Financial Instruments Classification and Measurement. In January 2016, the FASB issued revised accounting guidance for the classification and measurement of financial instruments. Changes in the fair value of all equity securities will be required to be recorded in net income. Current GAAP allows some changes in fair value for available-for-sale equity securities to be recorded in Accumulated other comprehensive income (AOCI). Additional disclosures will be required to present separately the financial assets and financial liabilities by measurement category and form of financial asset. An entity's equity investments that are accounted for under the equity method of accounting are not included within the scope of the new guidance.
For Duke Energy, the revised accounting guidance is effective for interim and annual periods beginning January 1, 2018, by recording a cumulative-effect adjustment to retained earnings as of January 1, 2018. This guidance is expected to have minimal impact on the Duke Energy Registrant's Condensed Consolidated Statements of Operations and Comprehensive Income as changes in the fair value of most of the Duke Energy Registrants' available-for-sale equity securities are deferred as regulatory assets or liabilities pursuant to accounting guidance for regulated operations.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





2. ACQUISITIONS AND DISPOSITIONS
ACQUISITIONS
The Duke Energy Registrants consolidate assets and liabilities from acquisitions as of the purchase date and include earnings from acquisitions in consolidated earnings after the purchase date.
2016 Acquisition of Piedmont Natural Gas
On October 3, 2016, Duke Energy acquired all outstanding common stock of Piedmont for a total cash purchase price of $5.0 billion and assumed Piedmont's existing long-term debt, which had a fair value of approximately $2.0 billion at the time of the acquisition. The acquisition provides a foundation for Duke Energy to establish a broader, long-term strategic natural gas infrastructure platform to complement its existing natural gas pipeline investments and regulated natural gas business in the Midwest. In connection with the closing of the acquisition, Piedmont became a wholly owned subsidiary of Duke Energy.
Purchase Price Allocation
The purchase price allocation of the Piedmont acquisition is as follows:
(in millions) 
Current assets$497
Property, plant and equipment, net4,714
Goodwill3,353
Other long-term assets804
Total assets9,368
Current liabilities, including current maturities of long-term debt576
Long-term liabilities1,790
Long-term debt2,002
Total liabilities4,368
Total purchase price$5,000
The fair value of Piedmont's assets and liabilities was determined based on significant estimates and assumptions that are judgmental in nature, including the amount and timing of projected future cash flows, discount rates reflecting risk inherent in the future cash flows and market prices of long-term debt.
The majority of Piedmont’s operations are subject to the rate-setting authority of the NCUC, the PSCSC and the TPUC and are accounted for pursuant to accounting guidance for regulated operations. The rate-setting and cost recovery provisions currently in place for Piedmont’s regulated operations provide revenues derived from costs, including a return on investment of assets and liabilities included in rate base. Thus, the fair value of Piedmont's assets and liabilities subject to these rate-setting provisions approximates the pre-acquisition carrying value and does not reflect any net valuation adjustments.
The significant assets and liabilities for which valuation adjustments were reflected within the purchase price allocation include the acquired equity method investments and long-term debt. The difference between the fair value and the pre-acquisition carrying value of long-term debt for regulated operations was recorded as a regulatory asset.
The excess of the purchase price over the fair value of Piedmont's assets and liabilities on the acquisition date was recorded as goodwill. The goodwill reflects the value paid by Duke Energy primarily for establishing a broader, long-term strategic natural gas infrastructure growth platform, an improved risk profile and expected synergies resulting from the combined entities.
Under Securities and Exchange Commission (SEC) regulations, Duke Energy elected not to apply push down accounting to the stand-alone Piedmont financial statements.
Other Acquisition-Related Matters
Duke Energy recorded realized losses on forward-starting interest rate swaps related to the acquisition financing of $22 million and $190 million for the three and nine months ended September 30, 2016, respectively. See Note 10 for additional information.
During the nine months ended September 30, 2017, Piedmont recorded a $7 million software impairment resulting from planned accounting system and process integration.
Pro Forma Financial Information
The following unaudited pro forma financial information reflects the combined results of operations of Duke Energy and Piedmont as if the merger had occurred as of January 1, 2016. The pro forma financial information excludes potential cost savings, intercompany revenues, Piedmont’s earnings from the equity method investment in SouthStar Energy Services, LLC (SouthStar) sold immediately prior to the merger, and after-tax nonrecurring transaction and integration costs incurred by Duke Energy and Piedmont of $41 million and $161 million for the three and nine months ended September 30, 2016, respectively. See Note 3 for additional information on Piedmont's sale of SouthStar.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





This information has been presented for illustrative purposes only and is not necessarily indicative of the consolidated results of operations that would have been achieved or the future consolidated results of operations of Duke Energy.
 Three Months Ended Nine Months Ended
(in millions)September 30, 2016 September 30, 2016
Operating Revenues$6,713
 $17,927
Net Income Attributable to Duke Energy Corporation1,180
 2,552
DISPOSITIONS
2016 Sale of International Energy
In December 2016, Duke Energy sold its International Energy businesses, excluding the equity method investment in NMC (the International Disposal Group), in two separate transactions. Duke Energy sold its Brazilian business to China Three Gorges for approximately $1.2 billion, including the assumption of debt, and its remaining Central and South American businesses to I Squared Capital in a deal also valued at approximately $1.2 billion, including the assumption of debt. The transactions generated cash proceeds of $1.9 billion, excluding transaction costs, which were primarily used to reduce Duke Energy holding company debt.
The following table presents the results of the International Disposal Group, which are included in (Loss) Income from Discontinued Operations, net of tax in Duke Energy's Condensed Consolidated Statements of Operations. Interest expense directly associated with the International Disposal Group was allocated to discontinued operations. No interest from corporate level debt was allocated to discontinued operations.
 Three Months Ended Nine Months Ended
(in millions)September 30, 2016 September 30, 2016
Operating Revenues$245
 $761
Fuel used in electric generation and purchased power60
 177
Cost of natural gas11
 34
Operation, maintenance and other85
 240
Depreciation and amortization18
 62
Property and other taxes1
 6
Impairment charges (a)

 194
Loss on Sales of Other Assets and Other, net(3) (2)
Other Income and Expenses, net14
 35
Interest Expense19
 63
Income before income taxes62
 18
Income tax expense (benefit) (b)
4
 (48)
Income from discontinued operations of the International Disposal Group58
 66
Income from discontinued operations of other businesses(c)
122
 124
Income from Discontinued Operations, net of tax$180
 $190
(a)In conjunction with the advancements of marketing efforts during 2016, Duke Energy performed recoverability tests of the long-lived asset groups of International Energy. As a result, Duke Energy determined the carrying value of certain assets in Central America was not fully recoverable and recorded a pretax impairment charge of $194 million. The charge represents the excess carrying value over the estimated fair value of the assets, which was based on a Level 3 Fair Value measurement that was primarily determined from the income approach using discounted cash flows but also considered market information obtained in 2016.
(b)Includes an income tax benefit of $95 million for the nine months ended September 30, 2016, related to historical undistributed foreign earnings. See Note 17 for additional information.
(c)Duke Energy recognized an income tax benefit of $122 million resulting from immaterial out of period deferred tax liability adjustments for the three and nine months ended September 30, 2016. The amount includes $34 million recorded at Duke Energy Ohio.
Duke Energy has elected not to separately disclose discontinued operations on the Condensed Consolidated Statements of Cash Flows. The following table summarizes Duke Energy's cash flows from discontinued operations related to the International Disposal Group.
 Nine Months Ended
(in millions)September 30, 2016
Cash flows provided by (used in): 
Operating activities$201
Investing activities(35)

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Other Sale-Related Matters
During 2017, Duke Energy provided certain transition services to China Three Gorges and I Squared Capital. Cash flows related to providing the transition services were not material and as of September 30, 2017, all transition services related to the International Disposal Group ended. Additionally, Duke Energy will reimburse China Three Gorges and I Squared Capital for all tax obligations arising from the period preceding consummation on the transactions, totaling approximately $78 million. Duke Energy has not recorded any other liabilities, contingent liabilities or indemnifications related to the International Disposal Group.
3. BUSINESS SEGMENTS
Operating segments are determined based on information used by the chief operating decision-maker in deciding how to allocate resources and evaluate the performance of the business. Duke Energy evaluates segment performance based on segment income. Segment income is defined as income from continuing operations net of income attributable to noncontrolling interests. Segment income includes intercompany revenues and expenses that are eliminated on the Condensed Consolidated Financial Statements.
Duke Energy
Due to the Piedmont acquisition and the sale of International Energy in the fourth quarter of 2016, Duke Energy's segment structure was realigned to includeincludes the following segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables. Prior period information has been recast to conform to the current segment structure. See Note 2 for further information on the Piedmont and International Energy transactions.
43

FINANCIAL STATEMENTSBUSINESS SEGMENTS

The Electric Utilities and Infrastructure segment primarily includes Duke Energy's regulated electric utilities in the Carolinas, Florida and the Midwest. On January 28, 2021, Duke Energy executed an agreement providing for an investment by an affiliate of GIC in Duke Energy Indiana in exchange for a 19.9% minority interest issued by Duke Energy Indiana Holdco, LLC, the holding company for Duke Energy Indiana. The regulated electric utilities conduct operations throughtransaction will be completed following 2 closings for an aggregate purchase price of approximately $2 billion. The first closing, which occurred on September 8, 2021, resulted in Duke Energy Indiana Holdco, LLC issuing 11.05% of its membership interests in exchange for approximately $1,025 million or 50% of the Subsidiary Registrantspurchase price. Duke Energy retained indirect control of these assets, and, therefore, no gain or loss was recognized on the Condensed Consolidated Statements of Operations. Duke Energy has the discretion to determine the timing of the second closing, but it will occur no later than January 2023. At the second closing, Duke Energy will issue and sell additional membership interests such that are substantially all regulated and, accordingly, qualifyGIC will own 19.9% of the membership interests for regulatory accounting treatment. Electric Utilities and Infrastructure also includes Duke Energy's electric transmission infrastructure investments.the remaining 50% of the purchase price.
The Gas Utilities and Infrastructure segment includes Piedmont, Duke Energy's natural gas local distribution companies in Ohio and Kentucky and Duke Energy's natural gas storage, and midstream pipeline investments. Gas Utilities and Infrastructure's operations are substantially all regulated and, accordingly, qualify for regulatory accounting treatment.renewable natural gas investments.
The Commercial Renewables segment is primarily comprised of nonregulated utility scaleutility-scale wind and solar generation assets located throughout the U.S. Duke Energy continues to monitor recoverability of its renewable merchant plants located in the ERCOT West market and in the PJM West market due to fluctuating market pricing and long-term forecasted energy prices. The assets were not impaired as of March 31, 2022, because the carrying value of approximately $200 million continues to approximate the aggregate estimated future undiscounted cash flows. Duke Energy has a 51% ownership interest in these assets. A continued decline in energy market pricing or other factors unfavorably impacting the economics would likely result in a future impairment.
The remainder of Duke Energy’s operations is presented as Other, which is primarily comprised of corporate interest expense on holding company debt, unallocated corporate costs, contributions to the Duke Energy Foundation and the operations of Duke Energy’s wholly owned captive insurance subsidiary,company, Bison, Insurance Company Limited (Bison). Other also includesand Duke Energy's 25 percent interest in NMC, a large regional producer of methyl tertiary butyl ether (MTBE) located in Saudi Arabia. In October 2017, Duke Energy's economic ownership interest in NMC decreased from 25 percent to 17.5 percent. The investment in NMC is accounted for under the equity method of accounting.National Methanol Company.
Business segment information is presented in the following tables. Segment assets presented exclude intercompany assets.
Three Months Ended September 30, 2017Three Months Ended March 31, 2022
Electric
 Gas
   Total
      ElectricGasTotal
Utilities and
 Utilities and
 Commercial
 Reportable
      Utilities andUtilities andCommercialReportable
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Consolidated
(in millions)InfrastructureInfrastructureRenewablesSegmentsOtherEliminationsTotal
Unaffiliated revenues$6,122
 $249
 $95
 $6,466
 $16
 $
 $6,482
Unaffiliated revenues$5,995 $1,009 $121 $7,125 $7 $ $7,132 
Intersegment revenues7
 23
 
 30
 19
 (49) 
Intersegment revenues7 23  30 23 (53) 
Total revenues$6,129
 $272
 $95
 $6,496
 $35
 $(49) $6,482
Total revenues$6,002 $1,032 $121 $7,155 $30 $(53)$7,132 
Segment income (loss)(a)(b)(c)
$1,020
 $19
 $(49) $990
 $(34) $
 $956
Add back noncontrolling interests            1
Loss from discontinued operations, net of tax            (2)
Net income            $955
Segment income (loss)(a)
Segment income (loss)(a)
$723 $254 $11 $988 $(170)$ $818 
Less: Noncontrolling interestsLess: Noncontrolling interests37 
Add: Preferred stock dividendAdd: Preferred stock dividend39 
Net IncomeNet Income$820 
Segment assets$118,323
 $11,361
 $4,216
 $133,900
 $2,240
 $185
 $136,325
Segment assets$144,790 $15,170 $7,021 $166,981 $4,251 $(12)$171,220 

Three Months Ended March 31, 2021
ElectricGasTotal
Utilities andUtilities andCommercialReportable
(in millions)InfrastructureInfrastructureRenewablesSegmentsOtherEliminationsTotal
Unaffiliated revenues$5,273 $752 $119 $6,144 $$— $6,150 
Intersegment revenues23 — 31 20 (51)— 
Total revenues$5,281 $775 $119 $6,175 $26 $(51)$6,150 
Segment income (loss)(b)
$820 $245 $27 $1,092 $(139)$— $953 
Less: Noncontrolling interests51 
Add: Preferred stock dividend39 
Net Income$941 
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





 Three Months Ended September 30, 2016
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Consolidated
Unaffiliated revenues$6,332
 $89
 $139
 $6,560
 $16
 $
 $6,576
Intersegment revenues8
 
 
 8
 16
 (24) 
Total revenues$6,340
 $89
 $139
 $6,568
 $32
 $(24) $6,576
Segment income (loss)(a)(c)
$1,189
 $15
 $(24) $1,180
 $(181) $
 $999
Add back noncontrolling interests            2
Income from discontinued operations, net of tax(d)
            180
Net income            $1,181
 Nine Months Ended September 30, 2017
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Consolidated
Unaffiliated revenues$16,211
 $1,175
 $333
 $17,719
 $47
 $
 $17,766
Intersegment revenues23
 68
 
 91
 56
 (147) 
Total revenues$16,234
 $1,243
 $333
 $17,810
 $103
 $(147) $17,766
Segment income (loss)(a)(b)(c)
$2,384
 $179
 $2
 $2,565
 $(205) $
 $2,360
Add back noncontrolling interests            5
Loss from discontinued operations, net of tax            (4)
Net income            $2,361
 Nine Months Ended September 30, 2016
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Consolidated
Unaffiliated revenues$16,406
 $355
 $365
 $17,126
 $40
 $
 $17,166
Intersegment revenues24
 3
 
 27
 51
 (78) 
Total revenues$16,430
 $358
 $365
 $17,153
 $91
 $(78) $17,166
Segment income (loss)(a)(c)
$2,557
 $63
 $13
 $2,633
 $(436) $
 $2,197
Add back noncontrolling interests            5
Income from discontinued operations, net of tax(d)
            190
Net income            $2,392
(a)Other includes costs to achieve the Piedmont acquisition. See Notes 2 and 10 for additional information.
(b)For the three and nine months ended September 30, 2017, (a)Electric Utilities and Infrastructure includes an impairment charge related to the Florida settlement agreement. See Note 4 for additional information.
(c)Commercial Renewables includes impairment charges related to certain wind projects. See discussion below.
(d)For the three and nine months ended September 30, 2016, Income from Discontinued Operations includes an income tax benefit resulting from immaterial out of period deferred tax liability adjustments. See Note 2 for additional information.
During the three and nine months ended September 30, 2017, Duke Energy recorded a pretax impairment charge of $69Infrastructure includes $211 million on a wholly owned non-contracted wind project. The impairment was recorded within Impairment of assets and other charges, $46 million within Operating revenues and $22 million within Noncontrolling Interests related to the Duke Energy Supreme Court ruling on Duke Energy’sthe Condensed Consolidated Statements of Operations. The charge represents the excess carrying value over the estimated fair value of the project, which was based on a Level See Note 3 Fair Value measurement that was determined from the income approach using discounted cash flows. The impairment was primarily due to the non-contracted wind project being located in a market that has experienced declining market pricing during 2017 and declining long-term forecasted energy and capacity prices, driven by low natural gas prices, for additional renewable generation placed in service and lack of significant load growth.information.
During the three and nine months ended September 30, 2016, Duke Energy recorded an other than temporary impairment (OTTI) of certain (b)Commercial Renewables wind project investments accountedincludes a $35 million loss related to Texas Storm Uri, of which $8 million is recorded within Nonregulated electric and other revenues, $2 million within Operation, maintenance and other, $29 million within Equity in earnings (losses) of unconsolidated affiliates and $12 million within Net Loss Attributable to Noncontrolling Interests on the Condensed Consolidated Statements of Operations. See Note 4 for under the equity method. The $71additional information. Gas Utilities and Infrastructure includes $6 million, pretax impairment was recorded within Equity in earnings (losses) of unconsolidated affiliates on Duke Energy'sthe Condensed Consolidated Statements of Operations. The other than temporary decline in value of these investments was primarily attributableOperations, related to a sustained decline in market pricing where the wind investments are located, the continued projected net losses for the projects and a reduction in the projected cash distributions to the class of investment owned by Duke Energy.gas pipeline investments.

44
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






FINANCIAL STATEMENTSBUSINESS SEGMENTS

Duke Energy Ohio
Duke Energy Ohio has two2 reportable operating segments, Electric Utilities and Infrastructure and Gas Utilities and Infrastructure.
Electric Utilities and Infrastructure transmits and distributes electricity in portions of Ohio and generates, distributes and sells electricity in portions of Northern Kentucky. Gas Utilities and Infrastructure transports and sells natural gas in portions of Ohio and Northern Kentucky. It conducts operations primarily through Duke Energy Ohio and its wholly owned subsidiary, Duke Energy Kentucky.
The remainder of Duke Energy Ohio's operations is presented as Other, which is primarily comprised of governance costs allocated by its parent, Duke Energy, and revenues and expenses related to Duke Energy Ohio's contractual arrangement to buy power from the Ohio Valley Electric Corporation's (OVEC) power plants. See Note 9 for additional information on related party transactions.
 Three Months Ended September 30, 2017
 Electric
 Gas
 Total
    
 Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Consolidated
Total revenues$371
 $90
 $461
 $10
 $471
Segment income (loss)50
 14
 64
 (8) 56
Loss from discontinued operations, net of tax        (1)
Net income        55
Segment assets$5,006
 $2,708
 $7,714
 $51
 $7,765
Other.
 Three Months Ended September 30, 2016
 Electric
 Gas
 Total
    
 Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Consolidated
Total revenues$390
 $89
 $479
 $10
 $489
Segment income (loss)52
 12
 64
 (9) 55
Income from discontinued operations, net of tax(a)
        34
Net income        $89
Three Months Ended March 31, 2022
ElectricGasTotal
Utilities andUtilities andReportable
(in millions)InfrastructureInfrastructureSegmentsOtherEliminationsTotal
Total revenues$412 $226 $638 $ $ $638 
Segment income/Net (loss) income$41 $38 $79 $(2)$ $77 
Segment assets$7,101 $3,784 $10,885 $14 $(168)$10,731 
 Nine Months Ended September 30, 2017
 Electric
 Gas
 Total
    
 Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Consolidated
Total revenues$1,036
 $360
 $1,396
 $30
 $1,426
Segment income (loss)96
 56
 152
 (24) 128
Loss from discontinued operations, net of tax        (1)
Net income        $127
Three Months Ended March 31, 2021
ElectricGasTotal
Utilities andUtilities andReportable
(in millions)InfrastructureInfrastructureSegmentsOtherTotal
Total revenues$363 $169 $532 $— $532 
Segment income/Net (loss) income$50 $43 $93 $(2)$91 
 Nine Months Ended September 30, 2016
 Electric
 Gas
 Total
    
 Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Consolidated
Total revenues$1,053
 $358
 $1,411
 $22
 $1,433
Segment income (loss)107
 57
 164
 (29) 135
Income from discontinued operations, net of tax(a)
        36
Net income        $171
(a)For the three and nine months ended September 30, 2016, Income from Discontinued Operations includes an income tax benefit resulting from immaterial out of period deferred tax liability adjustments. See Note 2 for additional information.
DUKE ENERGY CAROLINAS, PROGRESS ENERGY, DUKE ENERGY PROGRESS, DUKE ENERGY FLORIDA, DUKE ENERGY INDIANA AND PIEDMONT
Piedmont has one reportable segment, Gas Utilities and Infrastructure, which transports and sells natural gas. The remainder of Piedmont's operations is presented as Other, which is comprised of certain unallocated corporate costs, including acquisition-related expenses, and earnings from Piedmont's equity method investment in SouthStar prior to its sale. Piedmont sold its 15 percent membership interest in SouthStar on October 3, 2016. Piedmont's income, net of tax, from SouthStar for the three and nine months ended September 30, 2016, was $2 million and $12 million, respectively.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The remaining Subsidiary Registrants each have one reportable operating segment, Electric Utilities and Infrastructure, which generates, transmits, distributes and sells electricity. The remainder of each company's operations is presented as Other, which is comprised of certain unallocated corporate costs. Other for Progress Energy also includes interest expense on corporate debt instruments of $56 million and $167 million for the three and nine months ended September 30, 2017, respectively, and $55 million and $166 million for the three and nine months ended September 30, 2016, respectively. The following table summarizes the net (loss) income of Other for each of these entities.
 Three Months EndedNine Months Ended
 September 30,September 30,
(in millions)2017
 2016
2017
 2016
Duke Energy Carolinas$(6) $(16)$(18) $(50)
Progress Energy(32) (45)(120) (139)
Duke Energy Progress(4) (10)(11) (26)
Duke Energy Florida(2) (5)(7) (14)
Duke Energy Indiana(2) (3)(5) (10)
Piedmont(5) 
(18) 7
The assets at Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana are substantially all included within the Electric Utilities and Infrastructure segment at September 30, 2017. The assets at Piedmont are substantially all included within the Gas Utilities and Infrastructure segment at September 30, 2017.
4.3. REGULATORY MATTERS
RATE-RELATED INFORMATION
The NCUC, PSCSC, FPSC, IURC, PUCO, TPUC and KPSC approve rates for retail electric and natural gas services within their states. The FERC approves rates for electric sales to wholesale customers served under cost-based rates (excluding Ohio and Indiana), as well as sales of transmission service. The FERC also regulates certification and siting of new interstate natural gas pipeline projects.
Duke Energy Carolinas and Duke Energy Progress
Ash Basin Closure Costs DeferralHB 951
OnThe NCUC is required by North Carolina House Bill 951 (HB 951) to adopt an initial Carbon Plan on or before December 30, 2016,31, 2022. The NCUC has directed Duke Energy Carolinas and Duke Energy Progress filedto file a joint petition with the NCUC seeking an accounting order authorizing deferral of certain costs incurred in connection with federal and state environmental remediation requirements related to the permanent closure of ash basins and other ash storage units at coal-fired generating facilities that have providedproposed Carbon Plan on or are providing generation to customers located in North Carolina. Initial comments were received in March 2017, and reply comments were filed on April 19, 2017. The NCUC has consolidated Duke Energy Carolinas' and Duke Energy Progress’ coal ash deferral requests into their respective general rate case dockets for decision. See "2017 North Carolina Rate Case" sections below for additional discussion.before May 16, 2022. Duke Energy Carolinas and Duke Energy Progress cannot predict the outcome of this matter.
On February 10, 2022, the NCUC adopted rules to govern the application and review process for the PBR authorized under HB 951. On April 5, 2022, the NCUC adopted rules to govern the securitization of 50% of the North Carolina retail portion of the remaining net book value of retiring coal plants pursuant to HB 951. The rules are constructive and consistent with the policy objectives of HB 951.
Duke Energy Carolinas
2017 North Carolina Rate CaseOconee Nuclear Station Subsequent License Renewal
On August 25, 2017,June 7, 2021, Duke Energy Carolinas filed ana subsequent license renewal (SLR) application for the Oconee Nuclear Station (ONS) with the NCUCU.S. Nuclear Regulatory Commission (NRC) to renew ONS’s operating license for an additional 20 years. The SLR would extend operations of the facility from 60 to 80 years. The current licenses for units 1 and 2 expire in 2033 and the license for unit 3 expires in 2034. By a Federal Register Notice dated July 28, 2021, the NRC provided a 60-day comment period for persons whose interest may be affected by the issuance of a subsequent renewed license for ONS to file a request for a rate increasehearing and a petition for retail customersleave to intervene. On September 27, 2021, Beyond Nuclear and Sierra Club (Petitioners) filed a Hearing Request and Petition to Intervene (Hearing Request) and a Petition for Waiver. The Hearing Request proposed 3 contentions purporting to challenge Duke Energy Carolinas’ environmental report (ER). In general, the proposed contentions claimed that the ER did not consider certain information regarding the environmental aspects of approximately $647 million, which represents an approximate 13.6 percent increase in annual base revenues. The rate increase is drivensevere accidents caused by capital investments subsequenta hypothetical failure of the Jocassee Dam, and therefore did not satisfy the National Environmental Policy Act (NEPA) of 1969, as amended, or the NRC’s NEPA-implementing regulations. Duke Energy Carolinas filed its answer to the previous base rate case, including grid improvement projects, investments in customer service technologies, costs of complying with coal combustion residuals (CCR) regulationsproposed contentions on October 22, 2021, and the North Carolina Coal Ash Management Act of 2014 (Coal Ash Act)Petitioners filed their reply to Duke Energy Carolinas’ answer on November 5, 2021. On February 11, 2022, the Atomic Safety and recovery of costs relatedLicensing Board (ASLB) issued its decision on the Hearing Request and found that the Petitioners failed to licensingestablish that the proposed contentions are litigable. The ASLB also denied the Petitioners' Petition for Waiver and developmentterminated the proceeding.
On February 24, 2022, the NRC issued a decision in the Turkey Point SLR appeal and ruled that the NRC’s license renewal Generic Environmental Impact Statement (GEIS) does not apply to SLR because the GEIS does not address SLR.The decision overturned a 2020 NRC decision that found the GEIS applies to SLR. While Turkey Point is not owned or operated by a Duke Energy Registrant, the NRC’s order applies to all SLR applicants, including ONS. The NRC order also indicated no subsequent renewed licenses will be issued until the NRC staff has completed an adequate NEPA review for each application. On April 5, 2022, the NRC approved a 24-month rulemaking plan that will enable the NRC staff to complete an adequate NEPA review. Although an SLR applicant may wait until the rulemaking is completed, the NRC also noted that an applicant may submit a revised environmental report providing information on environmental impacts during the SLR period prior to the rulemaking being completed. Duke Energy Carolinas is evaluating the two options to determine which is preferable for ONS.Although the NRC’s decision will delay completion of the William States Lee III Nuclear Station (Lee Nuclear Station) discussed below. An evidentiary hearing is scheduled to begin on February 19, 2018.SLR proceeding, Duke Energy Carolinas does not believe it changes the probability that the ONS subsequent renewed licenses will ultimately be issued, though Duke Energy Carolinas cannot guaranty the outcome of the license application process.
45

FINANCIAL STATEMENTSREGULATORY MATTERS

Duke Energy Carolinas and Duke Energy Progress intend to seek renewal of operating licenses and 20-year license extensions for all of their nuclear stations. New depreciation rates were implemented for all of the nuclear facilities during the second quarter of 2021. Duke Energy Carolinas and Duke Energy Progress cannot predict the outcome of this matter.
Lincoln County Combustion Turbine Addition
Duke Energy Progress
FERC Return on Equity Complaint
On June 12, 2017, Duke Energy Carolinas filed an application with the NCUC for a Certificate of Public Convenience and Necessity (CPCN) to construct and operate a new 402-megawatt (MW) simple cycle advanced combustion turbine natural gas-fueled electric generating unit at its existing Lincoln County site. The request also included construction of related transmission and natural gas pipeline interconnection facilities. If approved, construction would begin in 2018 with an extended commissioning and validation period from 2020-2024 and an estimated commercial operation date in 2024. An evidentiary hearing was held in August 2017. Briefs and proposed orders were filed on October 9, 2017. A decision is expected by the end of 2017. Duke Energy Carolinas cannot predict the outcome of this matter.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





William States Lee Combined Cycle Facility
On April 9, 2014, the PSCSC granted Duke Energy Carolinas and16, 2020, North Carolina Electric Membership Corporation (NCEMC) a Certificate of Environmental Compatibility and Public Convenience and Necessity (CECPCN) for the construction and operation of a 750-MW combined-cycle natural gas-fired generating plant at Duke Energy Carolinas' existing William States Lee Generating Station in Anderson, South Carolina. Duke Energy Carolinas began construction in July 2015 and estimates a cost to build of $600 million for its share of the facility, including allowance for funds used during construction (AFUDC). The project is expected to be commercially available in late 2017. NCEMC will own approximately 13 percent of the project. On July 3, 2014, the South Carolina Coastal Conservation League (SCCL) and Southern Alliance for Clean Energy (SACE) jointly filed a Notice of Appeal withcomplaint at the Court of Appeals of South Carolina (S.C. Court of Appeals) seeking the court's review of the PSCSC's decision, claiming the PSCSC did not properly consider a request related to a proposed solar facility prior to granting approval of the CECPCN. The S.C. Court of Appeals affirmed the PSCSC's decision on February 10, 2016, and on March 24, 2016, denied a request for rehearing filed by SCCL and SACE. On April 21, 2016, SCCL and SACE petitioned the South Carolina Supreme Court for review of the S.C. Court of Appeals decision. On March 24, 2017, the South Carolina Supreme Court denied the request for review, thus concluding the matter.
Lee Nuclear Station
In December 2007, Duke Energy Carolinas applied to the NRC for combined operating licenses (COLs) for two Westinghouse Electric Company (Westinghouse) AP1000 reactors for the proposed Lee Nuclear Station to be located at a site in Cherokee County, South Carolina. The NCUC and PSCSC concurred with the prudency of Duke Energy Carolinas decisions to incur certain project development and preconstruction costs through several separately issued orders through 2011, although full cost recovery is not guaranteed. In December 2016, the NRC issued a COL for each reactor. Duke Energy Carolinas is not required to build the nuclear reactors as a result of the COLs being issued.
On March 29, 2017, Westinghouse filed for voluntary Chapter 11 bankruptcy in the U.S. Bankruptcy Court for the Southern District of New York. On May 15, 2017, the NCUC issued an order requiring Duke Energy Carolinas to provide information regarding potential impacts of the Westinghouse bankruptcy on the Lee Nuclear Station, as well as Duke Energy Carolinas' plans for cost recovery and additional financial information regarding the project. As part of its 2017 North Carolina Rate Case discussed above, Duke Energy Carolinas is seeking NCUC approval to cancel the development of the Lee Nuclear Station project due to the Westinghouse bankruptcy filing and other market activity and is requesting recovery of incurred licensing and development costs. Duke Energy Carolinas will maintain the license issued by the NRC in December 2016. Duke Energy Carolinas cannot predict the outcome of this matter.
Duke Energy Progress
2017 North Carolina Rate Case
On June 1, 2017,FERC against Duke Energy Progress filed an application withpursuant to Section 206 of the NCUC for a rate increase for retail customers of approximately $477 million, which represents an approximate 14.9 percent increase in annual base revenues. The rate increase is driven by capital investments subsequent toFederal Power Act (FPA), alleging that the previous base rate case, costs of complying with CCR regulations and the Coal Ash Act, costs relating to storm recovery, investments in customer service technologies and recovery of costs associated with renewable purchased power. Intervenors11% stated return on equity (ROE) component in the case filed testimonydemand formula rate in October 2017the Power Supply and Coordination Agreement between NCEMC and Duke Energy Progress'Progress is unjust and unreasonable. Under FPA Section 206, the earliest refund effective date that the FERC can establish is the date of the filing of the complaint. A series of responses are due November 6, 2017. An evidentiary hearingand answers were filed at FERC. The complaint proceeding is scheduledcurrently held in abeyance until June 1, 2022, based on representations that the parties have reached an agreement in principle and need additional time to begin November 20, 2017.finalize the filing. Duke Energy Progress cannot predict the outcome of this matter.
Storm Cost Deferral Filing
Duke Energy Florida
2021 Settlement Agreement
On December 16, 2016,January 14, 2021, Duke Energy ProgressFlorida filed a petitionSettlement Agreement (the “2021 Settlement”) with the NCUC requestingFPSC. The parties to the 2021 Settlement include Duke Energy Florida, the Office of Public Counsel (OPC), the Florida Industrial Power Users Group, White Springs Agricultural Chemicals, Inc. d/b/a PCS Phosphate and NUCOR Steel Florida, Inc. (collectively, the “Parties”).
Pursuant to the 2021 Settlement, the Parties agreed to a base rate stay-out provision that expires year-end 2024; however, Duke Energy Florida is allowed an accountingincrease to its base rates of an incremental $67 million in 2022, $49 million in 2023 and $79 million in 2024, subject to adjustment in the event of tax reform during the years 2021, 2022 and 2023. The Parties also agreed to an ROE band of 8.85% to 10.85% with a midpoint of 9.85% based on a capital structure of 53% equity and 47% debt. The ROE band can be increased by 25 basis points if the average 30-year U.S. Treasury rate increases 50 basis points or more over a six-month period in which case the midpoint ROE would rise from 9.85% to 10.10%. Duke Energy Florida will also be able to retain the retail portion of the DOE award of approximately $173 million for spent nuclear fuel, which is expected to be received in 2022, in order to defer certainmitigate customer rates over the term of the 2021 Settlement. In return, Duke Energy Florida will be able to recognize the $173 million into earnings from 2022 through 2024.
In addition to these terms, the 2021 Settlement contained provisions related to the accelerated depreciation of Crystal River Units 4-5, the approval of approximately $1 billion in future investments in new cost-effective solar power, the implementation of a new Electric Vehicle Charging Station Program and the deferral and recovery of costs incurred in connection with response to Hurricane Matthew and other significant storms in 2016. The final estimate of incremental operation and maintenance and capital costs of $116 million was filed with the NCUC in September 2017. On March 15, 2017, the NCUC Public Staff filed comments supporting deferral of a portionimplementation of Duke Energy Progress’ requested amount.Florida’s Vision Florida program, which explores various emerging non-carbon emitting generation technology, distributed technologies and resiliency projects, among other things. The 2021 Settlement also resolved remaining unrecovered storm costs for Hurricane Michael and Hurricane Dorian.
The FPSC approved the 2021 Settlement on May 4, 2021, issuing an order on June 4, 2021. Revised customer rates became effective January 1, 2022, with subsequent base rate increases effective January 1, 2023, and January 1, 2024.
Clean Energy Connection
On July 1, 2020, Duke Energy ProgressFlorida petitioned the FPSC for approval of a voluntary solar program. The program consists of 10 new solar generating facilities with combined capacity of approximately 750 MW. The program allows participants to support cost-effective solar development in Florida by paying a subscription fee based on per kilowatt-subscriptions and receiving a credit on their bill based on the actual generation associated with their portion of the solar portfolio. The estimated cost of the 10 new solar generation facilities is approximately $1 billion over the next three years, and this investment will be included in base rates offset by the revenue from the subscription fees. The credits will be included for recovery in the fuel cost recovery clause. The FPSC approved the program in January 2021.
On February 24, 2021, the League of United Latin American Citizens (LULAC) filed a notice of appeal of the FPSC’s order approving the Clean Energy Connection to the Supreme Court of Florida. LULAC's initial brief was filed on May 26, 2021, and Appellees' response briefs were filed on July 26, 2021. LULAC's reply commentsbrief was filed on April 12, 2017. On July 10, 2017,September 24, 2021, and its request for oral argument was filed on September 28, 2021. The Supreme Court of Florida heard the NCUC consolidatedoral argument on February 9, 2022. The FPSC approval order remains in effect pending the outcome of the appeal. Duke Energy Progress' storm deferral request into the Duke Energy Progress rate case docket for decision. See "2017 North Carolina Rate Case" for additional discussion. Duke Energy ProgressFlorida cannot predict the outcome of this matter.
Western Carolinas ModernizationStorm Protection Plan
On November 4, 2015, Duke Energy Progress announced a Western Carolinas Modernization Plan, which included retirement of the existing Asheville coal-fired plant, the construction of two 280‑MW combined-cycle natural gas plants having dual fuel capability, with the option to build a third natural gas simple cycle unit in 2023 based upon the outcome of initiatives to reduce the region's power demand. The plan also included upgrades to existing transmission lines and substations, installation of solar generation and a pilot battery storage project. These investments will be made within the next seven years. Duke Energy Progress is also working with the local natural gas distribution company to upgrade an existing natural gas pipeline to serve the natural gas plant.
On March 28, 2016, the NCUC issued an order approving a CPCN for the new combined-cycle natural gas plants, but denying the CPCN for the contingent simple cycle unit without prejudice to Duke Energy Progress to refile for approval in the future. On March 28, 2017, Duke Energy Progress filed an annual progress report for the construction of the combined-cycle plants with the NCUC, with an estimated cost of $893 million. Site preparation activities for the combined-cycle plants are underway and construction of these plants is scheduled to begin in 2017, with an expected in-service date in late 2019. Duke Energy Progress plans to file for future approvals related to the proposed solar generation and pilot battery storage project.
The carrying value of the 376-MW Asheville coal-fired plant, including associated ash basin closure costs, of $405 million and $492 million is included in Generation facilities to be retired, net on Duke Energy Progress' Condensed Consolidated Balance Sheets as of September 30, 2017, and December 31, 2016, respectively.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Duke Energy Florida
Hurricane Irma Storm Damage
In September 2017, all of Duke Energy Florida’s service territory was impacted by Hurricane Irma, which caused significant damage, resulting in approximately 1.3 million customers experiencing outages. Total storm restoration costs, including capital, are currently estimated at approximately $500 million. These estimates could change as Duke Energy Florida receives additional information on actual costs. After depleting any existing storm reserves, which were approximately $60 million before Hurricane Irma, Duke Energy Florida is permitted to petition the FPSC for recovery of additional incremental operation and maintenance costs resulting from the storm and to replenish the storm reserve to approximately $132 million for retail customers. Duke Energy Florida plans to make this petition by the end of 2017. At September 30, 2017, Duke Energy Florida's Condensed Consolidated Balance Sheets included approximately $400 million of recoverable costs under the FPSC's storm rule in Regulatory assets within Other Noncurrent Assets related to deferred Hurricane Irma storm costs. This amount is in addition to the storm reserve replenishment discussed above as part of Duke Energy Florida's petition to the FPSC.
2017 Second Revised and Restated Settlement Agreement
On October 25, 2017, the FPSC approved a 2017 Second Revised and Restated Settlement Agreement (2017 Settlement) filed by Duke Energy Florida. The 2017 Settlement replaces and supplants the Revised and Restated Stipulation and Settlement Agreement approved in November 2013 (2013 Settlement). The 2017 Settlement extends the base rate case stay-out provision from the 2013 Settlement through the end of 2021 unless actual or projected return on equity falls below 9.5 percent; however, Duke Energy Florida is allowed a multiyear increase to its base rates of $67 million per year in 2019, 2020 and 2021, as well as base rate increases for solar generation. In addition to carrying forward the provisions contained in the 2013 Settlement related to the Crystal River 1 and 2 coal units and future generation needs in Florida, the 2017 Settlement contains provisions related to future investments in solar and renewable energy technology, future investments in AMI technology as well as recovery of existing meters, impacts of potential tax reform, an electric vehicle charging station pilot program, as well as the termination of the proposed Levy Nuclear Project discussed below. As part of the 2017 Settlement, Duke Energy Florida will not move forward with building the Levy nuclear plant and recorded an pretax impairment charge of approximately $135 million in third quarter 2017 to write off all unrecovered Levy Nuclear Project costs, including the COL.
The 2017 Settlement includes provisions to recover 2017 under-recovered fuel costs of approximately $196 million over a 24-month period beginning in January 2018. On September 1, 2017, Duke Energy Florida submitted Alternate 2018 Fuel and Capacity clause projection filings consistent with the terms of the 2017 Settlement. The updated capacity filing reflects the removal of all Levy costs. The FPSC approved Duke Energy Florida's 2018 Alternate projection filings on October 25, 2017. A final order is expected by the end of 2017.
Levy Nuclear Project
On July 28, 2008, Duke Energy Florida applied to the NRC for COLs for two Westinghouse AP1000 reactors at Levy (Levy Nuclear Project). In 2008, the FPSC granted Duke Energy Florida’s petition for an affirmative Determination of Need and related orders requesting cost recovery under Florida’s nuclear cost-recovery rule, together with the associated facilities, including transmission lines and substation facilities. In October 2016, the NRC issued COLs for the proposed Levy Nuclear Plant Units 1 and 2. Duke Energy Florida is not required to build the nuclear reactors as a result of the COLs being issued.
On January 28, 2014, Duke Energy Florida terminated the Levy engineering, procurement and construction agreement (EPC). Duke Energy Florida may be required to pay for work performed under the EPC. Duke Energy Florida recorded an exit obligation in 2014 for the termination of the EPC. This liability was recorded within Other in Other Noncurrent Liabilities with an offset primarily to Regulatory assets on the Condensed Consolidated Balance Sheets. Duke Energy Florida is allowed to recover reasonable and prudent EPC cancellation costs from its retail customers. On May 1, 2017,April 11, 2022, Duke Energy Florida filed a requestStorm Protection Plan for approval with the FPSC. The plan, which covers investments for the 2023-2032 time frame, reflects approximately $7 billion of capital investment in transmission and distribution meant to strengthen its infrastructure, reduce outage times associated with extreme weather events, reduce restoration costs and improve overall service reliability. The FPSC has scheduled a hearing to recover approximately $82 million of Levy Nuclear Project costs from retail customers in 2018. As part of the 2017 Settlement discussed above,begin on August 2, 2022. Duke Energy Florida is no longer seeking recoverycannot predict the outcome of costs related to the Levy Nuclear Project and the ongoing Westinghouse litigation discussed in Note 5. All remaining Levy Nuclear Project issues have been resolved.this matter.
Hines Chiller Uprate Project
On February 2, 2017, Duke Energy Florida filed a petition seeking approval to include in base rates the revenue requirement for a Chiller Uprate Project (Uprate Project) at the Hines Energy Complex. The Uprate Project was placed into service in March 2017 at a cost of approximately $150 million. The annual retail revenue requirement is approximately $19 million. On March 28, 2017, the FPSC issued an order approving the revenue requirement, which was included in base rates for the first billing cycle of April 2017.
Duke Energy Ohio
Duke Energy Kentucky Rate Case
On September 1, 2017, Duke Energy Kentucky filed a rate case with the KPSC requesting an increase in electric base rates of approximately $49 million, which represents an approximate 15 percent increase on the average customer bill. The rate increase is driven by increased investment in utility plant, increased operations and maintenance expenses, and recovery of regulatory assets. The application also includes implementation of the Environmental Surcharge Mechanism to recover environmental costs not recovered in base rates, requests to establish a Distribution Capital Investment Rider to recover incremental costs of specific programs, requests to establish a FERC Transmission Cost Reconciliation Rider to recover escalating transmission costs and modification to the Profit Sharing Mechanism to increase customers' share of proceeds from the benefits of owning generation and to mitigate shareholder risks associated with that generation. The KPSC set filing deadlines of December 29, 2017, and February 14, 2018, for intervenor testimony and rebuttal testimony, respectively. An evidentiary hearing has not been scheduled.Duke Energy Kentucky anticipates that rates will go into effect in mid-April 2018. Duke Energy Kentucky cannot predict the outcome of this matter.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Ohio Electric Security Plan Filing
On June 1, 2017, Duke Energy Ohio filed with the PUCO a request for a standard service offer in the form of an electric security plan (ESP). If approved by the PUCO, the term of the ESP would be from June 1, 2018, to May 31, 2024. Terms of the ESP include continuation of market-based customer rates through competitive procurement processes for generation, continuation and expansion of existing rider mechanisms and proposed new rider mechanisms relating to regulatory mandates, costs incurred to enhance the customer experience and transform the grid and a service reliability rider for vegetation management. Public hearings were held in October 2017 and an evidentiary hearing scheduled to begin on November 13, 2017, has been continued to November 28, 2017. Duke Energy Ohio cannot predict the outcome of this matter.
Woodsdale Station Fuel System Filing
On June 9, 2015, the FERC ruled in favor of PJM Interconnection, LLC (PJM) on a revised Tariff and Reliability Assurance Agreement including implementation of a Capacity Performance (CP) proposal and to amend sections of the Operating Agreement related to generation non-performance. The CP proposal includes performance-based penalties for non-compliance. Duke Energy Kentucky is a Fixed Resource Requirement (FRR) entity, and therefore is subject to the compliance standards through its FRR plans. A partial CP obligation will apply to Duke Energy Kentucky in the delivery year beginning June 1, 2019, with full compliance beginning June 1, 2020. Duke Energy Kentucky has developed strategies for CP compliance investments. On May 31, 2017, Duke Energy Kentucky filed an application with the KPSC requesting authority to construct an ultra-low sulfur diesel backup fuel system for the Woodsdale Station. The back-up fuel system is projected to cost approximately $55 million and, if approved, is anticipated to be in service prior to the CP compliance deadline of April 2019. Duke Energy Kentucky cannot predict the outcome of this matter.
Ohio Valley Electric Corporation
On March 31, 2017, Duke Energy Ohio filed for approval to adjust its existing price stabilization rider (Rider PSR), which is currently set at zero dollars, to pass through net costs related to its contractual entitlement to capacity and energy from the generating assets owned by OVEC. The filing seeks to adjust Rider PSR for OVEC costs subsequent to April 1, 2017. Duke Energy Ohio is seeking deferral authority for net costs incurred from April 1, 2017, until the new rates under Rider PSR are put into effect. Various intervenors have filed motions to dismiss or stay the proceeding and Duke Energy Ohio has opposed these filings. See Note 13 for additional discussion of Duke Energy Ohio's ownership interest in OVEC. Duke Energy Ohio cannot predict the outcome of this matter.
East Bend Coal Ash Basin Filing
On December 2, 2016, Duke Energy Kentucky filed with the KPSC a request for a CPCN for construction projects necessary to close and repurpose an ash basin at the East Bend facility as a result of current and proposed U.S. Environmental Protection Agency (EPA) regulations. Duke Energy Kentucky estimated a total cost of approximately $93 million in the filing and expects in-service date in the fourth quarter of 2018. On June 6, 2017, the KPSC approved the CPCN request.
Base Rate Case
Duke Energy Ohio filed with the PUCO an electric distribution base rate case application andon October 1, 2021, with supporting testimony filed on October 15, 2021, requesting an increase in Marchelectric distribution base rates of approximately $55 million and an ROE of 10.3%. This is an approximate 3.3% average increase in the customer's total bill across all customer classes. The drivers for this case are capital invested since Duke Energy Ohio's last electric distribution base rate case in 2017. Duke Energy Ohio has requested an estimated annual increase of approximately $15 million and a returnis also seeking to adjust the caps on equity of 10.4 percent. The application also includes requests to continue certain current riders and establish new riders related to LED Outdoor Lighting Service and regulatory mandates. On September 26, 2017,its Distribution Capital Investment Rider (DCI Rider). Duke Energy Ohio anticipates the PUCO staff filed a report recommending a revenue decrease between approximately $18 million and $29 million and a returnwill rule on equity between 9.22 percent and 10.24 percent. Objections to the staff report are due by November 9, 2017. Public hearings were heldrequest in late October and early November. An evidentiary hearing is scheduled to begin on December 11, 2017.2022. Duke Energy Ohio cannot predict the outcome of this matter.
46

FINANCIAL STATEMENTSREGULATORY MATTERS

Energy Efficiency Cost Recovery
In response to changes in Ohio law that eliminated Ohio's energy efficiency mandates, the PUCO issued an order on February 26, 2020, directing utilities to wind down their demand-side management programs by September 30, 2020, and to terminate the programs by December 31, 2020. Duke Energy Ohio took the following actions:
On March 27, 2020, Duke Energy Ohio filed an application for rehearing seeking clarification on the final true up and reconciliation process after 2020. On November 18, 2020, the PUCO issued an order replacing the cost cap previously imposed upon Duke Energy Ohio with a cap on shared savings recovery. On December 18, 2020, Duke Energy Ohio filed an additional application for rehearing challenging, among other things, the imposition of the cap on shared savings. On January 13, 2021, the application for rehearing was granted for further consideration.
On October 9, 2020, Duke Energy Ohio filed an application to implement a voluntary energy efficiency program portfolio to commence on January 1, 2021. The application proposed a mechanism for recovery of program costs and a benefit associated with avoided transmission and distribution costs. The application remains under review.
On November 18, 2020, the PUCO issued an order directing all utilities to set their energy efficiency riders to zero effective January 1, 2021, and to file a separate application for final reconciliation of all energy efficiency costs prior to December 31, 2020. Effective January 1, 2021, Duke Energy Ohio suspended its energy efficiency programs.
On June 14, 2021, the PUCO issued an entry for each utility to file by July 15, 2021, a proposal to reestablish low-income programs through December 31, 2021. Duke Energy Ohio filed its application on July 14, 2021.
On February 23, 2022, the PUCO issued its Fifth Entry on Rehearing that 1) affirmed its reduction in Duke Energy Ohio's shared savings cap; 2) denied rehearing/clarification regarding lost distribution revenues and shared savings recovery for periods after December 31, 2020; and 3) directed Duke Energy Ohio to submit an updated application with exhibits.
On March 25, 2022, Duke Energy Ohio filed its Amended Application consistent with the PUCO's order.
Duke Energy Ohio cannot predict the outcome of this matter.
Natural Gas Pipeline Extension
Duke Energy Ohio is proposing to installinstalled a new natural gas pipeline (the Central Corridor Project) in its Ohio service territory to increase system reliability and enable the retirement of older infrastructure. On January 20, 2017,Construction of the pipeline extension was completed and placed in service on March 14, 2022. Duke Energy Ohio expects the final cost for the pipeline development and construction activities to be approximately $185 million (excluding overheads and AFUDC).
MGP Cost Recovery
In an order issued in 2013, the PUCO approved Duke Energy Ohio's deferral and recovery of costs related to environmental remediation at 2 sites (East End and West End) that housed former MGP operations. Duke Energy Ohio made annual applications with the PUCO to recover its incremental remediation costs consistent with the PUCO’s directive in Duke Energy Ohio’s 2012 natural gas base rate case. The Staff of the PUCO (Staff) issued reports recommending a disallowance of MGP remediation costs incurred that the Staff believes are not eligible for recovery. The Staff interprets the PUCO’s 2013 order granting Duke Energy Ohio recovery of MGP remediation as limiting the recovery to work directly on the East End and West End sites. Duke Energy Ohio filed an amended application with the Ohio Power Siting Board for approval of one of two proposed routes. A public hearing was held on June 15, 2017, and an adjudicatory hearing was scheduled to begin September 11, 2017. On August 24, 2017, an administrative law judge (ALJ) granted a request made by Duke Energy Ohio to delay the procedural schedule while it works through various issues relatedreply comments objecting to the pipeline route. If approved, construction ofStaff’s recommendations and explaining, among other things, the pipeline extension is expected to be completed before the 2020/2021 winter season. The proposed project involves the installation of a natural gas line and is estimated to cost approximately $110 million, excluding AFUDC.
Advanced Metering Infrastructure
On April 25, 2016, Duke Energy Kentucky filed with the KPSC an application for approval of a CPCN for the construction of advanced metering infrastructure. Duke Energy Kentucky estimates the $49 million project will take two years to complete. Duke Energy Kentucky also requested approval to establish a regulatory asset for the remaining book value of existing meter equipment and inventory to be replaced. Duke Energy Kentucky and the Kentucky attorney general entered into a stipulation to settle matters related to the application. On May 25, 2017, the KPSC issued an order to approve the stipulation with certain modifications. On June 1, 2017, Duke Energy Kentucky filed its acceptance of the modifications.obligation Duke Energy Ohio has approximately $7 million included in Regulatory assetsunder Ohio law to remediate all areas impacted by the former MGPs and not just physical property that housed the former plants and equipment. Additionally, the Staff recommended that any discussion pertaining to Duke Energy Ohio's recovery of ongoing MGP costs should be directly tied to or netted against insurance proceeds collected by Duke Energy Ohio. An evidentiary hearing concluded on its Condensed Consolidated Balance Sheets at September 30, 2017,November 21, 2019. Initial briefs were filed on January 17, 2020, and reply briefs were filed on February 14, 2020.
The 2013 PUCO order also contained conditional deadlines for completing the book valueMGP environmental remediation and the deferral of existing meter equipment.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notesrelated remediation costs. Subsequent to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Accelerated Natural Gas Service Line Replacement Rider
the order, the deadline was extended to December 31, 2019. On January 20, 2015,May 10, 2019, Duke Energy Ohio filed an application requesting a continuation of its existing deferral authority for approvalMGP remediation that must occur after December 31, 2019. On July 12, 2019, the Staff recommended the commission deny the deferral authority request. On September 13, 2019, intervenor comments were filed opposing Duke Energy Ohio's request for continuation of an accelerated natural gas service line replacement program (ASRP). Under the ASRP,existing deferral authority and on October 2, 2019, Duke Energy Ohio proposed to replace certain natural gas service lines on an accelerated basis over a 10-year period.filed reply comments.
A Stipulation and Recommendation was filed jointly by Duke Energy Ohio, also proposed to complete preliminary surveythe Staff, the Office of the Ohio Consumers' Counsel and investigation workthe Ohio Energy Group on August 31, 2021, which was approved without modification by the PUCO on April 20, 2022. The Stipulation and Recommendation resolved all open issues regarding MGP remediation costs incurred between 2013 and 2019, Duke Energy Ohio’s request for additional deferral authority beyond 2019 and the pending issues related to the Tax Act described below as it related to Duke Energy Ohio’s natural gas service lines that are customer ownedoperations. As a result of the approval of the Stipulation and for which it does not have valid records and, further, to relocate interior natural gas meters to suitable exterior locations where such relocation can be accomplished. Duke Energy Ohio's projected total capital and operations and maintenance expenditures under the ASRP were approximately $240 million. The filing also sought approval of a rider mechanism (Rider ASRP) to recover related expenditures.Recommendation, Duke Energy Ohio proposedrecognized pretax charges of approximately $15 million to update Rider ASRP on an annual basis. Intervenors opposedOperating revenues, regulated natural gas and $58 million to Operation, maintenance and other and a tax benefit of $72 million to Income Tax (Benefit) Expense in the ASRP, primarily because they believeCondensed Consolidated Statements of Operations for the program is neither required nor necessary under federal pipeline regulation. On October 26, 2016, the PUCO issued an order denying the proposed ASRP.three months ended March 31, 2022. The Stipulation and Recommendation further acknowledged Duke Energy Ohio's applicationOhio’s ability to file a request for rehearingadditional deferral authority in the future related to environmental remediation of any MGP impacts in the PUCO decision was denied on May 17, 2017.Ohio River if necessary, subject to specific conditions. Intervenors have 30 days to file for rehearing. Duke Energy Ohio cannot predict the outcome of this matter.
Energy Efficiency Cost Recovery
47

FINANCIAL STATEMENTSREGULATORY MATTERS

Tax Act – Ohio
On March 28, 2014,December 21, 2018, Duke Energy Ohio filed an application to change its base rate tariffs and establish a new rider to implement the benefits of the Tax Act for recovery of program costs, lost distribution revenue and performance incentives related to its energy efficiency and peak demand reduction programs. These programs are undertaken to comply with environmental mandates set forth in Ohio law. The PUCO approved Duke Energy Ohio’s application but found thatnatural gas customers. Duke Energy Ohio requested commission approval to implement the tariff changes and rider effective April 1, 2019. The new rider would flow through to customers the benefit of the reduction in the statutory federal tax rate from 35% to 21% since January 1, 2018, all future benefits of the lower tax rates and a full refund of deferred income taxes collected at the higher tax rates in prior years. Deferred income taxes subject to normalization rules would be refunded consistent with federal law and deferred income taxes not subject to normalization rules will be refunded over a 10-year period. The PUCO established a procedural schedule and testimony was not permitted to use banked energy savings from previous years in order to calculate the amount of allowed incentive. This conclusion represented a change to the cost recovery mechanism that had been agreed upon by intervenorsfiled on July 31, 2019. An evidentiary hearing occurred on August 7, 2019. The Stipulation and Recommendation filed on August 31, 2021, and approved on April 20, 2022, disclosed in the MGP Cost Recovery matter above, resolves the outstanding issues in this proceeding by the PUCO in previous cases. The PUCO granted the applications for rehearing filed by Duke Energy Ohio and an intervenor. On January 6, 2016, Duke Energy Ohio and the PUCO Staff entered intoproviding customers a stipulation, pending the PUCO's approval, to resolve issues related to performance incentives and the PUCO Staff audit of 2013 costs, among other issues. In December 2015, based upon the stipulation, Duke Energy Ohio re-established approximately $20 million of the revenues that had been previously reversed. On October 26, 2016, the PUCO issued an order approving the stipulation without modification. Intervenors requested a rehearing of the PUCO decision. In December 2016, the PUCO granted a rehearingone-time bill credit for the purpose of further review.reduction in the statutory federal tax rate from 35% to 21% since January 1, 2018, through June 1, 2022, and reducing base rates going forward. Deferred income taxes subject to normalization rules will be refunded consistent with federal law through a new rider. Deferred income taxes not subject to normalization rules were written off. Intervenors have 30 days to file for rehearing. Duke Energy Ohio cannot predict the outcome of this matter.
On June 15, 2016, Midwest Propane Caverns
Duke Energy Ohio filed an application for approval of a three-year energy efficiency andused propane stored in caverns to meet peak demand reduction portfolio of programs. A stipulationduring winter. Because the Central Corridor Project is complete and modified stipulation were filed on December 22, 2016,placed in service, the propane peaking facilities will no longer be necessary and January 27, 2017, respectively. Under the terms of the stipulations, which included support for deferral authority of all costs and a cap on shared savings incentives,have been retired. On October 7, 2021, Duke Energy Ohio has offered its energy efficiencyrequested deferral treatment of the property, plant and peak demand reduction programs throughout 2017.equipment as well as costs related to propane inventory and decommissioning costs. On February 3, 2017,January 6, 2022, the Staff issued a report recommending deferral authority for costs related to propane inventory and decommissioning costs, but not for the net book value of the remaining plant assets. As a result of the Staff's report, Duke Energy Ohio recorded a $19 million charge to Impairment of assets and other charges on the Consolidated Statements of Operations and Comprehensive Income in the fourth quarter of 2021. A Stipulation and Recommendation was filed for deferral authority of its costs incurred in 2017 in respect of its proposed energy efficiency and peak demand reduction portfolio. The PUCO staff and one intervenor have proposed a cap on both program costs and shared savings. On September 27, 2017, the PUCO issued an order approving a modified stipulation. The modifications impose an annual cap of approximately $38 million on program costs and shared savings incentives combined, but allowed forjointly by Duke Energy Ohio to file forand the Staff on April 27, 2022, recommending, among other things, approval of deferral treatment of a waiver of costs in excessportion of the cap in 2017. On October 12, 2017,net book value of the property, plant and equipment prior to the 2021 impairment at the time of the next natural gas base rate case, excluding operations and maintenance savings, decommissioning costs not to exceed $7 million and costs related to propane inventory. The Stipulation and Recommendation states that Duke Energy Ohio filed a motion for a waiver forwill seek recovery of costs incurred in 2017 above the annual cap.deferral through its next gas base rate case proceeding with a proposed amortization period of at least ten years and include an independent engineering study analyzing the necessity and prudency of the incremental investments made at the facilities since March 31, 2012. Duke Energy Ohio will not seek a return on the deferred amounts. Duke Energy Ohio cannot predict the outcome of this matter.
2012 Natural Gas Rate Case/Manufactured Gas Plant Cost Recovery
On November 13, 2013, the PUCO issued an order approving a settlement of Duke Energy Ohio’s natural gas base rate case and authorizing the recovery of costs incurred between 2008 and 2012 for environmental investigation and remediation of two former manufactured gas plant (MGP) sites. The PUCO order also authorized Duke Energy Ohio to continue deferring MGP environmental investigation and remediation costs incurred subsequent to 2012 and to submit annual filings to adjust the MGP rider for future costs. Intervening parties appealed this decision to the Ohio Supreme Court and on June 29, 2017, the Ohio Supreme Court issued its decision affirming the PUCO order. Appellants filed a request for reconsideration, which was denied on September 27, 2017. This matter is now final.
The PUCO order also contained deadlines for completing the MGP environmental investigation and remediation costs at the MGP sites. For the property known as the East End site, the PUCO order established a deadline of December 31, 2016, which was subsequently extended to December 31, 2019. In January 2017, intervening parties filed for rehearing of the PUCO's decision. On February 8, 2017, the PUCO denied the rehearing request. As of September 30, 2017, Duke Energy Ohio had approximately $36 million included in Regulatory assets on the Condensed Consolidated Balance Sheets for future remediation costs expected to be incurred at the East End site.
Regional Transmission Organization Realignment
Duke Energy Ohio, including Duke Energy Kentucky, transferred control of its transmission assets from Midcontinent Independent System Operator, Inc. (MISO) to PJM, effective December 31, 2011. The PUCO approved a settlement related to Duke Energy Ohio’s recovery of certain costs of the Regional Transmission Organization (RTO) realignment via a non-bypassable rider. Duke Energy Ohio is allowed to recover all MISO Transmission Expansion Planning (MTEP) costs, including but not limited to Multi Value Project (MVP) costs, directly or indirectly charged to Ohio customers. Duke Energy Ohio also agreed to vigorously defend against any charges for MVP projects from MISO. The KPSC also approved a request to effect the RTO realignment, subject to a commitment not to seek double recovery in a future rate case of the transmission expansion fees that may be charged by MISO and PJM in the same period or overlapping periods.
Duke Energy Ohio had a recorded liability for its exit obligation and share of MTEP costs, excluding MVP, of $90 million at September 30, 2017, and December 31, 2016, recorded within Other in Current liabilities and Other in Other Noncurrent Liabilities on the Condensed Consolidated Balance Sheets. The retail portions of MTEP costs billed by MISO are recovered by Duke Energy Ohio through a non-bypassable rider. As of September 30, 2017, and December 31, 2016, Duke Energy Ohio had $71 million recorded in Regulatory assets on the Condensed Consolidated Balance Sheets.
MVP. MISO approved 17 MVP proposals prior to Duke Energy Ohio’s exit from MISO on December 31, 2011. Construction of these projects is expected to continue through 2020. Costs of these projects, including operating and maintenance costs, property and income taxes, depreciation and an allowed return, are allocated and billed to MISO transmission owners.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





On December 29, 2011, MISO filed a tariff with the FERC providing for the allocation of MVP costs to a withdrawing owner based on monthly energy usage. The FERC set for hearing (i) whether MISO’s proposed cost allocation methodology to transmission owners who withdrew from MISO prior to January 1, 2012, is consistent with the tariff at the time of their withdrawal from MISO and, (ii) if not, what the amount of and methodology for calculating any MVP cost responsibility should be. In 2012, MISO estimated Duke Energy Ohio’s MVP obligation over the period from 2012 to 2071 at $2.7 billion, on an undiscounted basis. On July 16, 2013, a FERC ALJ issued an initial decision. Under this Initial Decision, Duke Energy Ohio would be liable for MVP costs. Duke Energy Ohio filed exceptions to the initial decision, requesting FERC to overturn the ALJ’s decision.
On October 29, 2015, the FERC issued an order reversing the ALJ's decision. The FERC ruled the cost allocation methodology is not consistent with the MISO tariff and that Duke Energy Ohio has no liability for MVP costs after its withdrawal from MISO. On May 19, 2016, the FERC denied the request for rehearing filed by MISO and the MISO Transmission Owners. On July 15, 2016, the MISO Transmission Owners filed a petition for review with the U.S. Court of Appeals for the Sixth Circuit. On June 21, 2017, a three-judge panel affirmed FERC's 2015 decision holding that Duke Energy Ohio has no liability for the cost of the MVP projects constructed after Duke Energy Ohio's withdrawal from MISO. MISO did not file further petitions for review and this matter is now final.
Duke Energy Indiana
Coal Combustion Residual Plan2019 Indiana Rate Case
On March 17, 2016, Duke Energy Indiana filed with the IURC a request for approval of its first group of federally mandated CCR rule compliance projects (Phase I CCR Compliance Projects) to comply with the EPA's CCR rule. The projects in this Phase I filing are CCR compliance projects, including the conversion of Cayuga and Gibson stations to dry bottom ash handling and related water treatment. Duke Energy Indiana has requested timely recovery of approximately $380 million in retail capital costs, including AFUDC, and recovery of incremental operating and maintenance costs under a federal mandate tracker that provides for timely recovery of 80 percent of such costs and deferral with carrying costs of 20 percent of such costs for recovery in a subsequent retail base rate case. On January 24, 2017, Duke Energy Indiana and various intervenors filed a settlement agreement with the IURC. Terms of the settlement include recovery of 60 percent of the estimated CCR compliance construction project capital costs through existing rider mechanisms and deferral of 40 percent of these costs until Duke Energy Indiana's next general retail rate case. The deferred costs will earn a return based on Duke Energy Indiana's long-term debt rate of 4.73 percent until costs are included in retail rates, at which time the deferred costs will earn a full return. Costs are to be capped at $365 million, plus actual AFUDC. Costs above the cap would be considered for recovery in the next rate case. Terms of the settlement agreement also require Duke Energy Indiana to perform certain reporting and groundwater monitoring. An evidentiary hearing was held on February 23, 2017, andJuly 2, 2019, Duke Energy Indiana filed a proposed ordergeneral rate case with the IURC for a rate increase for retail customers of approximately $395 million. The rebuttal case, filed on March 30, 2017. On May 24, 2017,December 4, 2019, updated the IURC approvedrequested revenue requirement to result in a 15.6% or $396 million average retail rate increase, including the settlement agreement.
FERC Transmission Returnimpacts of the Utility Receipts Tax. Hearings concluded on Equity Complaints
Customer groups have filed with the FERC complaints against MISO and its transmission-owning members, including Duke Energy Indiana, alleging, among other things, that the current base rate of return on equity earned by MISO transmission owners of 12.38 percent is unjust and unreasonable. The complaints, among other things, claim that the current base rate of return on equity earned by MISO transmission owners should be reduced to 8.67 percent. On January 5, 2015, the FERC issued an order accepting the MISO transmission owners' adder of 0.50 percent to the base rate of return on equity based on participation in an RTO subject to it being applied to a return on equity that is shown to be just and reasonable in the pending return on equity complaints. On December 22, 2015, the presiding FERC ALJ in the first complaint issued an Initial Decision in which the base rate of return on equity was set at 10.32 percent. On September 28, 2016, the Initial Decision in the first complaint was affirmed by FERC, but is subject to rehearing requests.February 7, 2020. On June 30, 2016, the presiding FERC ALJ in the second complaint issued an Initial Decision setting the base rate of return on equity at 9.70 percent. The Initial Decision in the second complaint is pending FERC review. On April 14, 2017, the U.S. Court of Appeals for the District of Columbia Circuit, in Emera Maine v. FERC, reversed and remanded certain aspects of the methodology employed by FERC to establish rates of return on equity. This decision may affect the outcome of the complaints against Duke Energy Indiana. Duke Energy Indiana currently believes these matters will not have a material impact on its results of operations, cash flows and financial position.
Grid Infrastructure Improvement Plan
In June 2016,29, 2020, the IURC issued an order in the rate case approving a settlement agreement amongrevenue increase of $146 million before certain adjustments and ratemaking refinements. The order approved Duke Energy IndianaIndiana’s requested forecasted rate base of $10.2 billion as of December 31, 2020, including the Edwardsport Integrated Gasification Combined Cycle (IGCC) Plant. The IURC reduced Duke Energy Indiana’s request by slightly more than $200 million, when accounting for the utility receipts tax and certain parties relatedother adjustments. Approximately 50% of the reduction was due to a proposed grid infrastructure improvement plan. The settlement agreement included the removal of an AMI project and also provided for deferral accounting forprospective change in depreciation and post-in-service carrying costs for AMI projects outside the plan. Duke Energy Indiana withdrew its request for ause of regulatory asset for current metersthe end-of-life inventory at retired generating plants, approximately 20% is due to the approved ROE of 9.7% versus the requested ROE of 10.4% and will retain any savings associated with future AMI installation until the next retail base rate case, which is requiredapproximately 20% was related to miscellaneous earnings neutral adjustments. Step one rates were estimated to be filed prior to the endapproximately 75% of the plan. Duringtotal and became effective on July 30, 2020. Step two rates are estimated to be the third quarterremaining 25% of 2016, Duke Energy Indiana decidedthe total rate increase. Step two rates were approved on July 28, 2021, and implemented in August 2021. Step two rates are based on an ROE of 9.7% and actual December 31, 2020 capital structure with a 54% equity component. Step two rates were reconciled to implement the AMI project. This decision resulted in a pretax impairment charge related to existing or non-AMI meters of approximately $8 million for the three and nine months ended September 30, 2016, based in part on the requirement to file a base rate case in 2022 under the approved plan. As of September 30, 2017, Duke Energy Indiana's remaining net book value of non-AMI meters is approximately $43 million and will be depreciated through 2022. In the event that Duke Energy Indiana were to file a base rate case earlier than 2022, it would result in additional impairment charges.January 1, 2021.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Benton County Wind Farm Dispute
On December 16, 2013, Benton County Wind Farm LLC (BCWF) filed a lawsuit against Duke Energy Indiana seeking damages for past generation losses totaling approximately $16 million alleging Duke Energy Indiana violated its obligations under a 2006 PPA by refusing to offer electricity to the market at negative prices. Damage claims continue to increase during times that BCWF is not dispatched. Under 2013 revised MISO market rules, Duke Energy Indiana is required to make a price offer to MISO for the power it proposes to sell into MISO markets and MISO determines whether BCWF is dispatched. Because market prices would have been negative due to increased market participation, Duke Energy Indiana determined it would not bid at negative prices in order to balance customer needs against BCWF's need to run. BCWF contends Duke Energy Indiana must bid at the lowest negative price to ensure dispatch, while Duke Energy Indiana contends it is not obligated to bid at any particular price, that it cannot ensure dispatch with any bid and that it has reasonably balanced the parties' interests. On July 6, 2015, the U.S. District Court for the Southern District of Indiana entered judgment against BCWF on all claims. BCWFSeveral groups appealed the decision and on December 9, 2016, the appeals court ruled in favor of BCWF. On June 30, 2017, the parties finalized a settlement agreement. Terms of the settlement included Duke Energy Indiana paying $29 million for back damages. Additionally, the parties agreed on the method by which the contract will be bid into the market in the future. Duke Energy Indiana recorded an obligation and a regulatory asset related to the settlement amount in fourth quarter 2016. The settlement amount was paid in June 2017. The IURC issued an order on September 27, 2017, approving recovery of the settlement amount through Duke Energy Indiana's fuel clause. The IURC order has been appealed to the Indiana Court of Appeals. Appellate briefs were filed on October 14, 2020, focusing on three issues: wholesale sales allocations, coal ash basin cost recovery and the Edwardsport IGCC operating and maintenance expense level approved. The appeal was fully briefed in January 2021 and an oral argument was held on April 8, 2021. The Indiana Court of Appeals affirmed the IURC decision on May 13, 2021. The Indiana Office of Utility Consumer Counselor (OUCC) and the Duke Industrial Group filed a joint petition to transfer the rate case appeal to the Indiana Supreme Court on June 28, 2021. Response briefs were filed July 19, 2021. The Indiana Supreme Court issued its opinion on March 10, 2022, finding that the IURC erred in allowing Duke Energy Indiana to recover coal ash costs incurred before the IURC’s rate case order in June 2020. The Indiana Supreme Court found that allowing Duke Energy Indiana to recover coal ash costs incurred between rate cases that exceeded the amount built into base rates violated the prohibition against retroactive ratemaking. The IURC’s order has been remanded to the IURC for additional proceedings consistent with the Indiana Supreme Court’s opinion. As a result of the court's opinion, Duke Energy Indiana recognized pretax charges of approximately $211 million to Impairment of assets and other charges and $46 million to Operating revenues in the Condensed Consolidated Statements of Operations for the three months ended March 31, 2022. Duke Energy Indiana filed a request for rehearing with the Supreme Court on April 11, 2022. Until the Indiana Supreme Court acts on the petition for rehearing, the IURC may not act on the Supreme Court's initial remedy. Duke Energy Indiana cannot predict the outcome of this matter.
2020 Indiana Coal Ash Recovery Case
In Duke Energy Indiana’s 2019 rate case, the IURC also opened a subdocket for post-2018 coal ash related expenditures. Duke Energy Indiana filed testimony on April 15, 2020, in the coal ash subdocket requesting recovery for the post-2018 coal ash basin closure costs for plans that have been approved by the Indiana Department of Environmental Management (IDEM) as well as continuing deferral, with carrying costs, on the balance. An evidentiary hearing was held on September 14, 2020. Briefing was completed by mid-September 2021. On November 3, 2021, the IURC issued an order allowing recovery for post-2018 coal ash basin closure costs for the plans that have been approved by IDEM, as well as continuing deferral, with carrying costs, on the balance. The OUCC filed a notice of appeal to the Indiana Court of Appeals on December 3, 2021. Duke Energy Indiana cannot predict the outcome of this matter.
48

FINANCIAL STATEMENTSREGULATORY MATTERS

Piedmont
2022 South Carolina Rate Stabilization Adjustment FilingCase
In June 2017,On April 1, 2022, Piedmont filed an application with the PSCSC for a rate increase for retail customers of approximately $7 million, which represents an approximate 3.4% increase in retail revenues. The rate increase is driven by customer growth and infrastructure upgrade investments (plant additions) since Piedmont’s last proceeding in 2021 under South Carolina’s Rate Stabilization Act. In addition, Piedmont agreed with the South Carolina Rate Stabilization Act its quarterly monitoring report for the 12-month period ending March 31, 2017. The filing included a revenue deficiency calculation and tariff rates in order to permit Piedmont the opportunity to earn the rate of return on equity of 12.6 percent established in its last general rate case. On October 4, 2017, the PSCSC approved a settlement agreement between Piedmont and the PSCSC Office of Regulatory Staff. Terms of the settlement included implementationStaff in 2019 to file a general rate case no later than April 1, 2022, to conduct a more comprehensive review of rates including the allocation of costs to residential, commercial and industrial customers. The PSCSC has scheduled an evidentiary hearing for the 12-month period beginning November 2017 with a return on equityweek of 10.2 percent.
North Carolina Integrity Management Rider Filings
In October 2017, Piedmont filed a petition under the Integrity Management Rider (IMR) mechanism to collect an additional $8.9 million in annual revenues, effective December 2017, based on the eligible capital investments closed to integrity and safety projects over the six-month period ending September 30, 2017.August 15, 2022. Piedmont cannot predict the outcome of this matter.
In May 2017, Piedmont filed, and the NCUC approved, a petition under the IMR mechanism to collect an additional $11.6 million in annual revenues, effective June 2017, based on the eligible capital investments closed to integrity and safety projects over the six-month period ending March 31, 2017.
OTHER REGULATORY MATTERS
Atlantic Coast Pipeline, LLC
On September 2, 2014, Duke Energy, Dominion Resources (Dominion), Piedmont and Southern Company Gas announced the formation of Atlantic Coast Pipeline, LLC (ACP) to build and own the proposed Atlantic Coast Pipeline (ACP pipeline), an approximately 600-mile interstate natural gas pipeline running from West Virginia to North Carolina. The ACP pipeline is designed to meet the needs identified by Duke Energy Carolinas, Duke Energy Progress and Piedmont. The ACP pipeline development costs are estimated between $5.0 billion to $5.5 billion, excluding financing costs. Dominion will build and operate the ACP pipeline and holds a leading ownership percentage in ACP of 48 percent. Duke Energy owns a 47 percent interest through its Gas Utilities and Infrastructure segment. Southern Company Gas maintains a 5 percent interest. See Note 13 for additional information related to Duke Energy's ownership interest.
Duke Energy Carolinas, Duke Energy Progress and Piedmont, among others, will be customers of the pipeline. Purchases will be made under several 20-year supply contracts, subject to state regulatory approval. On September 18, 2015, ACP filed an application with the FERC requesting a CPCN authorizing ACP to construct the pipeline. ACP executed a construction agreement in September 2016. ACP also requested approval of an open access tariff and the precedent agreements it entered into with future pipeline customers. In December 2016, FERC issued a draft Environmental Impact Statement (EIS) indicating that the proposed pipeline would not cause significant harm to the environment or protected populations. The FERC issued the final EIS in July 2017. On October 13, 2017, FERC issued an order approving the CPCN, subject to conditions. On October 16, 2017, ACP accepted the FERC order subject to reserving its right to file a request for rehearing or clarification on a timely basis. Construction is projected to begin in the fourth quarter of 2017, with a targeted in-service date in late 2019. The project remains subject to other pending federal and state approvals.
Sabal Trail Transmission, LLC
On May 4, 2015, Duke Energy acquired a 7.5 percent ownership interest in Sabal Trail Transmission, LLC (Sabal Trail) from Spectra Energy Partners, LP, a master limited partnership, formed by Enbridge Inc. (formerly Spectra Energy Corp.). Spectra Energy Partners, LP holds a 50 percent ownership interest in Sabal Trail and NextEra Energy has a 42.5 percent ownership interest. Sabal Trail is a joint venture to construct a 515-mile natural gas pipeline (Sabal Trail pipeline) to transport natural gas to Florida. Total estimated project costs are approximately $3.2 billion. The Sabal Trail pipeline traverses Alabama, Georgia and Florida. The primary customers of the Sabal Trail pipeline, Duke Energy Florida and Florida Power & Light Company (FP&L), have each contracted to buy pipeline capacity for 25-year initial terms. See Note 13 for additional information related to Duke Energy's ownership interest.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





On February 3, 2016, the FERC issued an order granting the request for a CPCN to construct and operate the pipeline. On September 7, 2016, FERC denied the intervenors' rehearing requests. On September 21, 2016, intervenors filed an appeal of FERC's CPCN orders to the U.S. Court of Appeals for the District of Columbia Circuit. On August 22, 2017, the appeals court ruled against FERC in the case for failing to include enough information on the impact of greenhouse-gas emissions carried by the pipeline and vacated the CPCN order. In response to the August 2017 court decision, the FERC issued a draft Supplemental Environmental Impact Statement (SEIS) on September 27, 2017. Comments on the SEIS are due by November 20, 2017. On October 6, 2017, FERC filed a petition with the D.C. Circuit Court of Appeals requesting a rehearing regarding the court's decision to vacate the CPCN order. On October 6, 2017, Sabal Trail and other natural gas shippers, including Duke Energy Florida, also filed a rehearing request with the D.C. Circuit Court of Appeals regarding the decision to vacate the CPCN order. It is unclear how this matter will impact the project going forward. The Sabal Trail pipeline has received other required regulatory approvals and the phase one mainline was placed in service in July 2017. On October 12, 2017, Sabal Trail filed a request with FERC to place in-service a lateral line to Duke Energy Florida's Citrus County Combined Cycle facility.
Constitution Pipeline Company, LLC
Duke Energy has a 24 percent ownership interest in Constitution Pipeline Company, LLC (Constitution). Constitution is a natural gas pipeline project slated to transport natural gas supplies from the Marcellus supply region in northern Pennsylvania to major northeastern markets. The pipeline will be constructed and operated by Williams Partners L.P., which has a 41 percent ownership share. The remaining interest is held by Cabot Oil and Gas Corporation and WGL Holdings, Inc. Duke Energy's total anticipated contributions are approximately $229 million.
On April 22, 2016, the New York State Department of Environmental Conservation (NYSDEC) denied Constitution’s application for a necessary water quality certification for the New York portion of the Constitution pipeline. Constitution filed legal actions in the U.S. Court of Appeals for the Second Circuit (U.S. Court of Appeals) challenging the legality and appropriateness of the NYSDEC’s decision and on August 18, 2017, the petition was denied in part and dismissed in part. On September 1, 2017, Constitution filed a petition for a rehearing of portions of the decision unrelated to the water quality certification, which was denied by the U.S. Court of Appeals. On October 11, 2017, Constitution filed a petition for declaratory order with the FERC requesting FERC to issue an order finding the NYSDEC waived its rights to issue a water quality certification by not acting on Constitution's application within the time frame required by statute, which would allow the project to proceed. Constitution has revised the target in-service date to as early as the first half of 2019 due to the NYDSEC's denial of the water quality certification and the legal actions being taken to challenge the decision, assuming the timely receipt of a Notice to Proceed from the FERC. Duke Energy cannot predict the outcome of this matter.
Since April 2016, with the actions of the NYSDEC, Constitution stopped construction and discontinued capitalization of future development costs until the project's uncertainty is resolved. To the extent the legal and regulatory proceedings have unfavorable outcomes, or if Constitution concludes that the project is not viable or does not go forward, an impairment charge of up to the recorded investment in the project, net of any cash and working capital returned, may be recorded.
See Note 13 for additional information related to ownership interest and carrying value of the investment.
Potential Coal Plant Retirements
The Subsidiary Registrants periodically file Integrated Resource Plans (IRP)IRPs with their state regulatory commissions. The IRPs provide a view of forecasted energy needs over a long term (10 to 20 years) and options being considered to meet those needs. Recent IRPs filed by the Subsidiary Registrants included planning assumptions to potentially retire certain coal-fired generating facilities in North Carolina Florida and Indiana earlier than their current estimated useful lives. Duke Energy continues to evaluate the potential need to retire these coal-fired generating facilities earlier than the current estimated useful lives primarily because facilities doand plans to seek regulatory recovery for amounts that would not have the requisite emission control equipment to meet EPA regulations recently approved or proposed.be otherwise recovered when any of these assets are retired.
The table below contains the net carrying value of generating facilities planned for retirement or included in recent IRPs as evaluated for potential retirement. Dollar amounts in the table below are included in Net property, plant and equipment on the Condensed Consolidated Balance Sheets as of September 30, 2017,March 31, 2022, and exclude capitalized asset retirement costs.
   Remaining Net
 Capacity
 Book Value
 (in MW)
 (in millions)
Duke Energy Carolinas   
Allen Steam Station Units 1-3(a)
585
 $164
Progress Energy and Duke Energy Florida   
Crystal River Units 1 and 2(b)
873
 111
Duke Energy Indiana   
Gallagher Units 2 and 4(c)
280
 130
Total Duke Energy1,738
 $405
Remaining Net
CapacityBook Value
(in MW)(in millions)
Duke Energy Carolinas
Allen Steam Station Units 1(a)
167 $12 
Allen Steam Station Units 5(b)
259 265 
Cliffside Unit 5(b)
546 358 
Duke Energy Progress
Mayo Unit 1(b)
713 621 
Roxboro Units 3-4(b)
1,409 450 
Duke Energy Florida
Crystal River Units 4-5(c)
1,442 1,636 
Duke Energy Indiana
Gibson Units 1-5(d)
2,845 2,076 
Cayuga Units 1-2(d)
1,005 676 
Total Duke Energy8,386 $6,094 
(a)Duke Energy Carolinas will retire Allen Steam Station Units 1 through 3 by December 31, 2024, as
(a)As part of the resolution of a lawsuit involving alleged New Source Review violations.
(b)Duke Energy Florida will likely retire these coal units by 2018 to comply with environmental regulations.
(c)Duke Energy Indiana committed to either retire or stop burning coal at Gallagher Units 2 and 4 by December 31, 2022, as part of the settlement of Edwardsport IGCC matters.
Refer to the "Western Carolinas Modernization Plan" discussion above for details2015 resolution of a lawsuit involving alleged New Source Review violations, Duke Energy Progress' planned retirements.

Carolinas must retire Allen Steam Station Unit 1 by December 31, 2024. The long-term energy options considered in the IRP could result in retirement of this unit earlier than its current estimated useful live.
PART I(b)These units were included in the IRP filed by Duke Energy Carolinas and Duke Energy Progress in North Carolina and South Carolina on September 1, 2020. The long-term energy options considered in the IRP could result in retirement of these units earlier than their current estimated useful lives.
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –(c)On January 14, 2021, Duke Energy Florida filed the 2021 Settlement agreement with the FPSC, which proposed depreciation rates reflecting retirement dates for Duke Energy Florida's last 2 coal-fired generating facilities, Crystal River Units 4-5, eight years ahead of schedule in 2034 rather than in 2042. The FPSC approved the 2021 Settlement on May 4, 2021.
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.(d)The rate case filed July 2, 2019, included proposed depreciation rates reflecting retirement dates from 2026 to 2038. The depreciation rates reflecting these updated retirement dates were approved by the IURC as part of the rate case order issued on June 29, 2020.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





5.4. COMMITMENTS AND CONTINGENCIES
ENVIRONMENTAL
The Duke Energy Registrants are subject to federal, state and local regulations regarding air and water quality, hazardous and solid waste disposal, coal ash and other environmental matters. These regulations can be changed from time to time, imposing new obligations on the Duke Energy Registrants. The following environmental matters impact all of the Duke Energy Registrants.
49

FINANCIAL STATEMENTSCOMMITMENTS AND CONTINGENCIES

Remediation Activities
In addition to asset retirement obligations (ARO)AROs recorded as a result of various environmental regulations, the Duke Energy Registrants are responsible for environmental remediation at various sites. These include certain properties that are part of ongoing operations and sites formerly owned or used by Duke Energy entities. These sites are in various stages of investigation, remediation and monitoring. Managed in conjunction with relevant federal, state and local agencies, remediation activities vary based upon site conditions and location, remediation requirements, complexity and sharing of responsibility. If remediation activities involve joint and several liability provisions, strict liability, or cost recovery or contribution actions, the Duke Energy Registrants could potentially be held responsible for environmental impacts caused by other potentially responsible parties and may also benefit from insurance policies or contractual indemnities that cover some or all cleanup costs. Liabilities are recorded when losses become probable and are reasonably estimable. The total costs that may be incurred cannot be estimated because the extent of environmental impact, allocation among potentially responsible parties, remediation alternatives and/or regulatory decisions have not yet been determined at all sites. Additional costs associated with remediation activities are likely to be incurred in the future and could be significant. Costs are typically expensed as Operation, maintenance and other on the Condensed Consolidated Statements of Operations unless regulatory recovery of the costs is deemed probable.
The following tables containtable contains information regarding reserves for probable and estimable costs related to the various environmental sites. These reserves are recorded in Accounts Payable within Current Liabilities and Other within Other Noncurrent Liabilities on the Condensed Consolidated Balance Sheets.
 Nine Months Ended September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Balance at beginning of period$98
 $10
 $18
 $3
 $14
 $59
 $10
 $1
Provisions/adjustments(1) 2
 1
 
 1
 (3) (2) 1
Cash reductions(13) (2) (3) 
 (3) (7) (1) 
Balance at end of period$84
 $10
 $16
 $3
 $12
 $49
 $7
 $2
 Nine Months Ended September 30, 2016
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Balance at beginning of period$94
 $10
 $17
 $3
 $14
 $54
 $12
 $1
Provisions/adjustments34
 5
 5
 2
 3
 6
 20
 
Cash reductions(12) (4) (6) (2) (4) (1) (2) 
Balance at end of period$116
 $11
 $16
 $3
 $13
 $59
 $30
 $1
(in millions)March 31, 2022December 31, 2021
Reserves for Environmental Remediation
Duke Energy$87 $88 
Duke Energy Carolinas19 19 
Progress Energy23 23 
Duke Energy Progress11 11 
Duke Energy Florida11 11 
Duke Energy Ohio33 34 
Duke Energy Indiana4 
Piedmont8 
Additional losses in excess of recorded reserves that could be incurred for the stages of investigation, remediation and monitoring for environmental sites that have been evaluated at this time are not material except as presented in the table below.
material.
(in millions) 
Duke Energy$58
Duke Energy Carolinas20
Duke Energy Ohio30
Duke Energy Indiana3
Piedmont2
North Carolina and South Carolina Ash Basins
In February 2014, a break in a stormwater pipe beneath an ash basin at Duke Energy Carolinas’ retired Dan River Steam Station caused a release of ash basin water and ash into the Dan River. Duke Energy Carolinas estimates 30,000 to 39,000 tons of ash and 24 million to 27 million gallons of basin water were released into the river. In July 2014, Duke Energy completed remediation work identified by the EPA. Future costs related to the Dan River release, including future civil enforcement, future regulatory directives, natural resources damages, future claims or litigation and long-term environmental impact costs, cannot be reasonably estimated at this time.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The North Carolina Department of Environmental Quality (NCDEQ) has historically assessed Duke Energy Carolinas and Duke Energy Progress with Notices of Violations (NOV) for violations that were most often resolved through satisfactory corrective actions and minor, if any, fines or penalties. Subsequent to the Dan River ash release, Duke Energy Carolinas and Duke Energy Progress have been served with a higher level of NOVs, including assessed penalties for violations at L.V. Sutton Combined Cycle Plant (Sutton) and Dan River Steam Station. Duke Energy Carolinas and Duke Energy Progress cannot predict whether the NCDEQ will assess future penalties related to existing unresolved NOVs and if such penalties would be material. See "NCDEQ Notices of Violation" section below for additional discussion.
LITIGATION
DukeDuke Energy
Duke Energy no longer has exposure to litigation matters related to the International Disposal Group as a result of the divestiture of the business in December 2016. See Note 2 for additional information related to the sale of International Energy.
Ash Basin Shareholder Derivative Litigation
Five shareholder derivative lawsuits were filed in Delaware Chancery Court related to the release at Dan River and to the management of Duke Energy’s ash basins. On October 31, 2014, the five lawsuits were consolidated in a single proceeding titled In ReMichael Johnson et al. v. Duke Energy Corporation Coal Ash Derivative Litigation. et al.
On December 2, 2014, plaintiffs filedSeptember 23, 2020, plaintiff Michael Johnson, a Corrected Verified Consolidated Shareholder Derivative Complaint (Consolidated Complaint). The Consolidated Complaint names as defendants several current and former Duke Energy officersemployee and directors (collectively,participant in the Duke Energy Defendants).Retirement Savings Plan (Plan) brought suit on his own behalf and on behalf of other participants and beneficiaries similarly situated against Duke Energy is named as a nominal defendant.
The Consolidated Complaint allegesCorporation, the Duke Energy DefendantsBenefits Committee, and other unnamed individual defendants. The complaint, which was subsequently amended to add a current participant as a plaintiff on November 23, 2020, alleges that the defendants breached their fiduciary duties by failingwith respect to adequately oversee Duke Energy’s ash basins and that these breaches of fiduciary duty may have contributed tocertain fees associated with the incident at Dan River and continued thereafter. The lawsuit also asserts claims against the Duke Energy Defendants for corporate waste (relating to the money Duke Energy has spent and will spend as a resultPlan in violation of the fines, penaltiesEmployee Retirement Income Security Act of 1974 and coal ash removal) and unjust enrichment (relating toseeks certification of a class of all individuals who were participants or beneficiaries of the compensation and director remuneration that was received despite these alleged breaches of fiduciary duty).Plan at any time on or after September 23, 2014. The lawsuit seeks both injunctive relief against Duke Energy and restitution from the Duke Energy Defendants. On April 22, 2016, plaintiffs filed an Amended Verified Consolidated Shareholder Derivative Complaint (Amended Complaint) making the same allegations as in the Consolidated Complaint. The Duke Energy Defendantsdefendants filed a motion to dismiss the Amended Complaintplaintiffs’ amended complaint on June 21, 2016.December 18, 2020. On December 14, 2016,January 31, 2022, the Delaware Chancery Court entered an order dismissingcourt denied the Amended Complaint. Plaintiffs filed an appealdefendants' motion to dismiss. On February 28, 2022, Duke Energy responded to the Delaware Supreme Court on January 9, 2017. Oral argument was held on September 27, 2017,amended complaint. Discovery commenced and a decision is pending.
On October 30, 2015, shareholder Saul Bresalierthe parties exchanged preliminary disclosures. After review of these disclosures, the parties filed a shareholder derivative complaint (Bresalier Complaint) in the U.S. District Court for the Districtjoint stipulation of Delaware. The lawsuit alleges that several current and former Duke Energy officers and directors (Bresalier Defendants) breached their fiduciary duties in connectiondismissal with coal ash environmental issues, the post-merger change in Chief Executive Officer (CEO) and oversight of political contributions. Duke Energy is named as a nominal defendant. The Bresalier Complaint contends that the appointed Demand Review Committee failed to appropriately consider the shareholder’s earlier demand for litigation and improperly decided not to pursue claims against the Bresalier Defendants. On March 30, 2017, the court granted Defendants’ Motion to Dismissprejudice on the claims relating to coal ash environmental issues and political contributions. As discussed below, a settlement agreement was approved for the merger-related claims in the Bresalier Complaint, and those claims were dismissed. On September 8, 2017, Bresalier filed a notice of appeal to the U.S. Court of Appeals for the Third Circuit (Third Circuit Court) challenging the dismissal of his coal ash and political contribution claims. Pursuant to a scheduling order issued by the Third Circuit Court, briefing will be complete on December 20, 2017.
It is not possible to predict whether Duke Energy will incur any liability or to estimate the damages, if any, it might incur in connection with these matters.
Progress Energy Merger Shareholder Litigation
On May 31, 2013, the Delaware Chancery Court consolidated four shareholder derivative lawsuits filed in 2012. The Court also appointed a lead plaintiff and counsel for plaintiffs and designated the case as In Re Duke Energy Corporation Derivative Litigation (Merger Chancery Litigation). The lawsuit names as defendants the Legacy Duke Energy Directors. Duke Energy is named as a nominal defendant. The case alleges claims for breach of fiduciary duties of loyalty and care in connection with the post-merger change in CEO.
Two shareholder Derivative Complaints, filed in 2012 in federal district court in Delaware, were consolidated as Tansey v. Rogers, et al. The case alleges claims against the Legacy Duke Energy Directors for breach of fiduciary duty and waste of corporate assets, as well as claims under Section 14(a) and 20(a) of the Exchange Act. Duke Energy is named as a nominal defendant. On December 21, 2015, Plaintiff filed a Consolidated Amended Complaint asserting the same claims contained in the original complaints.
The Legacy Duke Energy Directors reached an agreement-in-principle to settle the Merger Chancery Litigation, conditioned on dismissal as well, of the Tansey v. Rogers, et al case and the merger-related claims in the Bresalier Complaint discussed above, which was approved by the Delaware Chancery Court on July 13, 2017. The entire settlement amount was funded by insurance. The settlement amount, less court-approved attorney fees, totaled $20 million and was paid to Duke Energy in third quarter 2017.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Price Reporting Cases
Duke Energy Trading and Marketing, LLC (DETM), a non-operating Duke Energy affiliate, was a defendant, along with numerous other energy companies, in four class-action lawsuits and a fifth single-plaintiff lawsuit in a consolidated federal court proceeding in Nevada. Each of these lawsuits contained similar claims that defendants allegedly manipulated natural gas markets by various means, including providing false information to natural gas trade publications and entering into unlawful arrangements and agreements in violation of the antitrust laws of the respective states. Plaintiffs sought damages in unspecified amounts. In February 2016, DETM reached agreements in principle to settle all of the pending lawsuits. Settlement of the single-plaintiff settlement was finalized and paid in March 2016. The proposed settlement of the class action lawsuits wasApril 28, 2022. If approved by the Court, and all settlement amounts, which are not material tothis matter will be fully resolved. Duke Energy have been paid.
Duke Energy Carolinas and Duke Energy Progress
Coal Ash Insurance Coverage Litigation
In March 2017, Duke Energy Carolinas and Duke Energy Progress filed a civil action in North Carolina Superior Court against various insurance providers. The lawsuit seeks payment for coal ash-related liabilities covered by third-party liability insurance policies. The insurance policies were issued between 1971 and 1986 and provide third-party liability insurance for property damage. The civil action seeks damages for breach of contract and indemnification for costs arising from the Coal Ash Act and the EPA CCR rule at 15 coal-fired plants in North Carolina and South Carolina. Duke Energy Carolinas and Duke Energy Progress cannot predict the outcome of this matter.
NCDEQ State Enforcement ActionsTexas Storm Uri Tort Litigation
In the first quarter of 2013, the Southern Environmental Law Center (SELC) sent notices of intent to sueSeveral Duke Energy Carolinas andrenewables project companies, located in the ERCOT market, were named in lawsuits arising out of Texas Storm Uri in mid-February 2021. Duke Energy Progress related to alleged Clean Water Act (CWA) violationsCorporation, which had originally been named in several suits, was dismissed from coal ash basins at two of their coal-fired power plants in North Carolina.the lawsuits. The NCDEQ filed enforcement actionslawsuits against the Duke Energy Carolinasrenewables project companies seek recovery for property damages, personal injury and Duke Energy Progress alleging violationsfor wrongful death allegedly caused by the power outages, which the plaintiffs claim was the result of water discharge permitscollective failures of generators, transmission and North Carolina groundwater standards.distribution operators, retail energy providers and others, including ERCOT. The cases have been consolidated into a Texas state court multidistrict litigation (MDL) proceeding for discovery and pre-litigation purposes. NaN MDL cases have been designated for motions to dismiss while all other cases are being heard before a single judgestayed. Duke Energy renewables projects are named as defendants in 3 of these 5 cases. The parties' briefing on omnibus motions to dismiss should be completed by July 2022 and will focus on lack of duty, tariff defenses and sovereign immunity. Decisions on these motions will be applicable to all of the North Carolina Superior Court.stayed cases. Duke Energy cannot predict the outcomes of these matters.
On August 16, 2013, the NCDEQ filed an enforcement action against
50

FINANCIAL STATEMENTSCOMMITMENTS AND CONTINGENCIES

Duke Energy Carolinas
Ruben Villano, et al. v. Duke Energy Carolinas, and Duke Energy Progress relatedLLC
On June 16, 2021, a group of 9 individuals went over a low head dam adjacent to their remaining plantsthe Dan River Steam Station in Eden, North Carolina, alleging violations of the CWAwhile water tubing. Emergency personnel rescued 4 people and violations of the North Carolina groundwater standards. Both of these cases have been assigned to the judge handling the enforcement actions discussed above. SELC is representing several environmental groups who have been permitted to intervene in these cases.
The court issued orders in 2016 granting Motions for Partial Summary Judgment for seven of the 14 North Carolina plants named in the enforcement actions. The litigation is concluded for these seven plants. Litigation continues for the remaining seven plants.5 others were confirmed deceased. On February 13, 2017, the court issued an order denying motions for partial summary judgment brought by both the environmental groups andAugust 11, 2021, Duke Energy Carolinas andwas served with the complaint filed in Durham County Superior Court on behalf of 4 survivors, which was later amended to include all the decedents along with the survivors, except for one minor. The lawsuit alleges that Duke Energy Progress.Carolinas knew that the river was used for recreational purposes and that Duke Energy did not adequately warn about the dam, and that Duke Energy Carolinas created a dangerous and hidden hazard on the Dan River in building and maintaining the low head dam. On MarchSeptember 30, 2021, Duke Energy Carolinas filed its motion to dismiss and motion for transfer of venue from Durham County to Rockingham County, both of which were denied on November 15, 2021. On November 15, 2021, Duke Energy Carolinas was also served with Plaintiffs Second Amended Complaint, which added the final minor plaintiff and consolidated all the actions into 1 lawsuit. Duke Energy Carolinas has filed its Answer and Affirmative Defenses to the Second Amended Complaint. Mediation is scheduled for December 2022. Discovery has commenced and is scheduled to be completed on or before February 28, 2023. The case is scheduled to be trial-ready by April 24, 2023. Duke Energy Carolinas cannot predict the outcome of this matter.
NTE Carolinas II, LLC Litigation
In November 2017, Duke Energy Carolinas and Duke Energy Progress filedentered into a Notice of Appealstandard FERC large generator interconnection agreement (LGIA) with NTE Carolinas II, LLC (NTE), a company that proposed to challenge the trial court’s order. The parties were unable to reach an agreement at mediationbuild a combined-cycle natural gas plant in April 2017. The parties submitted briefs to the court on remaining issues to be tried and a ruling is pending.Rockingham County, North Carolina. On August 22, 2017,September 6, 2019, Duke Energy Carolinas andfiled a lawsuit in Mecklenburg County Superior Court against NTE for breach of contract, alleging that NTE's failure to pay benchmark payments for Duke Energy Progress filedCarolinas' transmission system upgrades required under the interconnection agreement constituted a Petition for Discretionary Review, requestingtermination of the interconnection agreement. Duke Energy Carolinas is seeking a monetary judgment against NTE because NTE failed to make multiple milestone payments. The lawsuit was moved to federal court in North Carolina Supreme Court to accept the appeal. On August 24, 2017, SELCCarolina. NTE filed a motion to dismiss the appeal. Duke Energy Carolinas'Carolinas’ complaint and Duke Energy Progress’ opening appellate briefs were filed on October 12, 2017.
It is not possible to predict any liability or estimate any damagesbrought counterclaims alleging anti-competitive conduct and violations of state and federal statutes. Duke Energy Carolinas or Duke Energy Progress might incur in connection with these matters.
Federal Citizens Suits
On June 13, 2016, the Roanoke River Basin Association (RRBA) filed a federal citizen suit in the Middle District of North Carolina alleging unpermitted discharges to surface water and groundwater violations at the Mayo Plant. On August 19, 2016, Duke Energy Progress filed a Motion to Dismiss. On April 26, 2017, the court entered an order dismissing four of the claims in the federal citizen suit. Two claims relating to alleged violations of National Pollutant Discharge Elimination System (NPDES) permit provisions survived the motion to dismiss, and Duke Energy Progress filed its response on May 10, 2017. The parties are engaged in pre-trial discovery. Trial has been scheduled for July 9, 2018.
On March 16, 2017, RRBA served Duke Energy Progress with a Notice of Intent to Sue under the CWA for alleged violations of effluent standards and limitations at the Roxboro Plant. In anticipation of litigation, Duke Energy Progress filed a Complaint for Declaratory Relief in the U.S. District Court for the Western District of Virginia on May 11, 2017, which was subsequently dismissed. On May 16, 2017, RRBA filed a federal citizen suit in the U.S. District Court for the Middle District of North Carolina which asserts two claims relating to alleged violations of NPDES permit provisions and one claim relating to the use of nearby water bodies.
On June 20, 2017, RRBA filed a federal citizen suit in the U.S. District Court for the Middle District of North Carolina challenging the closure plans at the Mayo Plant under the EPA CCR Rule. Duke Energy Progress filed a motion to dismiss on AugustNTE's counterclaims.
On May 21, 2017.2020, in response to a NTE petition challenging Duke Energy Carolinas' termination of the LGIA, FERC issued a ruling that 1) it has exclusive jurisdiction to determine whether a transmission provider may terminate a LGIA; 2) FERC approval is required to terminate a conforming LGIA if objected to by the interconnection customer; and 3) Duke Energy may not announce the termination of a conforming LGIA unless FERC has approved the termination. FERC's Office of Enforcement also initiated an investigation of Duke Energy Carolinas into matters pertaining to the LGIA. Duke Energy Carolinas is cooperating with the Office of Enforcement but cannot predict the outcome of this investigation.
On August 2, 2017, RRBA17, 2020, the court denied both NTE’s and Duke Energy Carolinas’ motions to dismiss. In October 2021, NTE filed a federal citizen suitSecond Amended Counterclaim and Complaint, and in the U.S. District Court for the Middle District of North Carolina challenging the closure plans at the Roxboro Plant under the EPA CCR Rule.January 2022, NTE filed a Third Amended Counterclaim and Complaint. Duke Energy ProgressCarolinas has responded to these pleadings. On December 6, 2021, Duke Energy Carolinas filed an Amended Complaint. On March 1, 2022, the parties participated in mediation, which ended in an impasse. On April 4, 2022, Duke Energy Carolinas filed a motion for summary judgment seeking a ruling in its favor as to dismisssome of its affirmative claims against NTE and to all of NTE’s counterclaims. Duke Energy Carolinas' motion will be fully briefed on October 2, 2017.
On October 3, 2017, various parties servedMay 10, 2022. The case is scheduled to be trial-ready by August 1, 2022. Duke Energy Carolinas with a Noticecannot predict the outcome of Intent to Sue under the CWA for alleged violations at Duke Energy Carolinas' Belews Creek Steam Station (Belews Creek). A lawsuit may be filed sixty days after service of notice.this matter.
It is not possible to predict whether Duke Energy Carolinas or Duke Energy Progress will incur any liability or to estimate the damages, if any, they might incur in connection with these matters.
Five previously filed cases involving the Riverbend, Cape Fear, H.F. Lee, Sutton and Buck plants were dismissed or settled in 2016.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Groundwater Contamination Claims
Beginning in May 2015, a number of residents living in the vicinity of the North Carolina facilities with ash basins received letters from the NCDEQ advising them not to drink water from the private wells on their land tested by the NCDEQ as the samples were found to have certain substances at levels higher than the criteria set by the North Carolina Department of Health and Human Services (DHHS). Results of Comprehensive Site Assessments (CSAs) testing performed by Duke Energy under the Coal Ash Act have been consistent with historical data provided to state regulators over many years. The DHHS and NCDEQ sent follow-up letters on October 15, 2015, to residents near coal ash basins who had their wells tested, stating that private well samplings at a considerable distance from coal ash basins, as well as some municipal water supplies, contain similar levels of vanadium and hexavalent chromium, which led investigators to believe these constituents are naturally occurring. In March 2016, DHHS rescinded the advisories.
Duke Energy Carolinas and Duke Energy Progress have received formal demand letters from residents near Duke Energy Carolinas' and Duke Energy Progress' coal ash basins. The residents claim damages for nuisance and diminution in property value, among other things. The parties held three days of mediation discussions that ended at an impasse. On January 6, 2017, Duke Energy Carolinas and Duke Energy Progress received the plaintiffs' notice of their intent to file suits should the matter not settle. The NCDEQ preliminarily approved Duke Energy’s permanent water solution plans on January 13, 2017, and as a result shortly thereafter, Duke Energy issued a press release, providing additional details regarding the homeowner compensation package. This package consists of three components: (i) a $5,000 goodwill payment to each eligible well owner to support the transition to a new water supply, (ii) where a public water supply is available and selected by the eligible well owner, a stipend to cover 25 years of water bills and (iii) the Property Value Protection Plan. The Property Value Protection Plan is a program offered by Duke Energy designed to guarantee eligible plant neighbors the fair market value of their residential property should they decide to sell their property during the time that the plan is offered. Duke Energy Carolinas and Duke Energy Progress have recognized reserves of $19 million and $4 million, respectively. On August 23, 2017, a class action suit was filed in Wake County Superior Court, North Carolina, against Duke Energy Carolinas and Duke Energy Progress on behalf of certain property owners living near coal ash impoundments at Allen, Asheville, Belews Creek, Buck, Cliffside, Lee, Marshall, Mayo and Roxboro. The class is defined as those who are “well-eligible” under the Coal Ash Act or those to whom Duke Energy has promised a permanent replacement water supply and seeks declaratory and injunctive relief, along with compensatory damages. Plaintiffs allege that Duke Energy’s improper maintenance of coal ash impoundments caused harm, particularly through groundwater contamination. Despite NCDEQ’s preliminary approval, Plaintiffs contend that Duke Energy’s proposed permanent water solutions plan fails to comply with the Coal Ash Act. On September 28, 2017, Duke Energy Carolinas and Duke Energy Progress filed a Motion to Dismiss and Motion to Strike the class designation.
On September 14, 2017, a complaint was filed against Duke Energy Progress in New Hanover County Superior Court by a group of homeowners residing approximately one mile from Duke Energy Progress' Sutton Steam Plant (Sutton). The homeowners allege that coal ash constituents have been migrating from ash impoundments at Sutton into their groundwater for decades and that in 2015, Duke Energy Progress discovered these releases of coal ash, but failed to notify any officials or neighbors and failed to take remedial action. The homeowners claim unspecified physical and mental injuries as a result of consuming their well water and seek actual damages for personal injury, medical monitoring and punitive damages.
It is not possible to estimate the maximum exposure of loss, if any, that may occur in connection with current claims or future claims, which might be made by these residents.
Asbestos-related Injuries and Damages Claims
Duke Energy Carolinas has experienced numerous claims for indemnification and medical cost reimbursement related to asbestos exposure. These claims relate to damages for bodily injuries alleged to have arisen from exposure to or use of asbestos in connection with construction and maintenance activities conducted on its electric generation plants prior to 1985. As of September 30, 2017, there were 120 asserted claims for non-malignant cases with cumulative relief sought of up to $29 million, and 57 asserted claims for malignant cases with cumulative relief sought of up to $16 million. Based on
Duke Energy Carolinas’ experience, it is expected that the ultimate resolution of most of these claims likely will be less than the amount claimed.
Duke Energy CarolinasCarolinas has recognized asbestos-related reserves of $486$495 million at September 30, 2017,March 31, 2022, and $512$501 million at December 31, 2016.2021. These reserves are classified in Other within Other Noncurrent Liabilities and Other within Current Liabilities on the Condensed Consolidated Balance Sheets. These reserves are based upon the minimum amount of the range of lossDuke Energy Carolinas' best estimate for current and future asbestos claims through 2036,2041 and are recorded on an undiscounted basis and incorporate anticipated inflation.basis. In light of the uncertainties inherent in a longer-term forecast, management does not believe they can reasonably estimate the indemnity and medical costs that might be incurred after 20362041 related to such potential claims. It is possible Duke Energy Carolinas may incur asbestos liabilities in excess of the recorded reserves.
Duke Energy Carolinas has third-party insurance to cover certain losses related to asbestos-related injuries and damages above an aggregate self-insured retention. Duke Energy Carolinas’ cumulative payments began to exceed the self-insurance retention in 2008. Future payments up to the policy limit will be reimbursed by the third-party insurance carrier. The insurance policy limit for potential future insurance recoveries indemnification and medical cost claim payments is $797 million in excess of the self-insured retention. Receivables for insurance recoveries were $570$644 million at September 30, 2017, March 31, 2022, and $587$644 million at December 31, 2016.2021. These amounts are classified in Other within Other Noncurrent Assets and Receivables within Current Assets on the Condensed Consolidated Balance Sheets. Any future payments up to the policy limit will be reimbursed by the third-party insurance carrier. Duke Energy Carolinas is not aware of any uncertainties regarding the legal sufficiency of insurance claims. Duke Energy Carolinas believes the insurance recovery asset is probable of recovery as the insurance carrier continues to have a strong financial strength rating.

The reserve for credit losses for insurance receivables is $12 million for Duke Energy and Duke Energy Carolinas as of March 31, 2022, and December 31, 2021. The insurance receivable is evaluated based on the risk of default and the historical losses, current conditions and expected conditions around collectability. Management evaluates the risk of default annually based on payment history, credit rating and changes in the risk of default from credit agencies.
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Duke Energy Progress and Duke Energy Florida
Class Action LawsuitSpent Nuclear Fuel Matters
On February 22, 2016, a lawsuit was filedJune 18, 2018, Duke Energy Progress and Duke Energy Florida sued the U.S. in the U.S. District Court of Federal Claims for damages incurred for the Southern Districtperiod 2014 through 2018. The lawsuit claimed the DOE breached a contract in failing to accept spent nuclear fuel under the Nuclear Waste Policy Act of 1982 and asserted damages for the cost of on-site storage in the amount of $100 million and $200 million for Duke Energy Progress and Duke Energy Florida, respectively.
51

FINANCIAL STATEMENTSCOMMITMENTS AND CONTINGENCIES

On March 30, 2022, the DOE and Duke Energy Progress executed a settlement agreement, pursuant to which Duke Energy Progress will receive damages for costs incurred between 2014 and 2018, and will be able to submit future costs on behalfa defined schedule. In April 2022, Duke Energy Progress received $87 million in proceeds that related to damages incurred in 2014 through 2018.
On May 2, 2022, the DOE and Duke Energy Florida executed a settlement agreement, pursuant to which Duke Energy Florida will receive approximately $180 million for costs incurred between 2014 and 2018, and will be able to submit costs incurred in 2019 and 2020 pursuant to an audit process.
Duke Energy Indiana
Coal Ash Basin Closure Plan Appeal
On January 27, 2020, Hoosier Environmental Council (HEC) filed a Petition for Administrative Review with the Indiana Office of a putative classEnvironmental Adjudication challenging the Indiana Department of Environmental Management’s (IDEM's) December 10, 2019, partial approval of Duke Energy FloridaIndiana’s ash pond closure plan at Duke Energy's Gallagher power station. After hearing oral arguments in early April 2021 on Duke Energy Indiana's and FP&L’s customersHEC's competing Motions for Summary Judgment, on May 4, 2021, the administrative court rejected all of HEC’s claims and issued a ruling in Florida. The suit alleges the State of Florida’s nuclear power plant cost recovery statutes (NCRS) are unconstitutional and pre-empted by federal law. Plaintiffs claim they are entitled to repayment of all money paid by customersfavor of Duke Energy FloridaIndiana. On June 3, 2021, HEC filed an appeal in Superior Court to seek judicial review of the order. On June 25, 2021, Duke Energy Indiana filed its response to the Petition to Review. On August 30, 2021, HEC served Duke Energy Indiana with its Brief in Support of Petition for Judicial Review. On October 29, 2021, Duke Energy Indiana and FP&L asIDEM filed their response briefs. On December 13, 2021, HEC filed and served its Reply Brief.
On January 11, 2022, Duke Energy Indiana received a compliance obligation letter from the EPA notifying the company that the two basins at issue in the litigation are subject to requirements of the CCR Rule. The letter does not provide a deadline for compliance. Duke Energy Indiana is evaluating the EPA letter, its potential impacts on the litigation and the extent to which this letter could apply to CCR surface impoundments at its other Indiana sites.
Following the January 11, 2022 EPA notice of compliance letter, the parties filed a joint motion to stay the litigation for 45 days, which was approved by the court. As a result, the oral argument scheduled for February 1, 2022, was postponed. Duke Energy Indiana and HEC engaged in settlement discussions, but the parties were unable to reach resolution. On April 21, 2022, HEC filed a Motion to Lift Stay and Motion for Judicial Notice. HEC also requested that the court hold a hearing within 45 days and also take judicial notice of the NCRS, as well as an injunction against any future charges under those statutes. The constitutionality of the NCRS has been challenged unsuccessfully in a number of prior cases on alternative grounds.EPA's January 11, 2022 letter. On April 22, 2022, Duke Energy FloridaIndiana sent IDEM a letter withdrawing the closure plans for the Gallagher North Ash Pond and FP&LPrimary Pond Ash Fill. After acknowledgment by IDEM of withdrawal of these closure plans, Duke Energy Indiana filed motionsa Motion to dismissDismiss the complaintlitigation as moot on April 28, 2022, and IDEM filed a separate brief on May 5, 2016. On September 21, 2016, the Court granted the motions to dismiss with prejudice. Plaintiffs filed a motion for reconsideration, which was denied. On January 4, 2017, plaintiffs filed a notice2, 2022, in support of appeal to the Eleventh Circuit U.S. Court of Appeals. The appeal, which has been fully briefed, was heard on August 22, 2017, and a decisionthis motion. Briefing is pending.ongoing. Duke Energy FloridaIndiana cannot predict the outcome of this appeal.
Westinghouse Contract Litigation
On March 28, 2014, Duke Energy Florida filed a lawsuit against Westinghouse in the U.S. District Court for the Western District of North Carolina. The lawsuit seeks recovery of $54 million in milestone payments in excess of work performed under an EPC for Levy as well as a determination by the court of the amounts due to Westinghouse as a result of the termination of the EPC. Duke Energy Florida recognized an exit obligation as a result of the termination of the EPC.
On March 31, 2014, Westinghouse filed a lawsuit against Duke Energy Florida in U.S. District Court for the Western District of Pennsylvania. The Pennsylvania lawsuit alleged damages under the EPC in excess of $510 million for engineering and design work, costs to end supplier contracts and an alleged termination fee.
On June 9, 2014, the judge in the North Carolina case ruled that the litigation will proceed in the Western District of North Carolina. On July 11, 2016, Duke Energy Florida and Westinghouse filed separate Motions for Summary Judgment. On September 29, 2016, the court issued its ruling on the parties' respective Motions for Summary Judgment, ruling in favor of Westinghouse on a $30 million termination fee claim and dismissing Duke Energy Florida's $54 million refund claim, but stating that Duke Energy Florida could use the refund claim to offset any damages for termination costs. Westinghouse's claim for termination costs was unaffected by this ruling and continued to trial. At trial, Westinghouse reduced its claim for termination costs from $482 million to $424 million. Following a trial on the matter, the court issued its final order in December 2016 denying Westinghouse’s claim for termination costs and re-affirming its earlier ruling in favor of Westinghouse on the $30 million termination fee and Duke Energy Florida’s refund claim. Judgment was entered against Duke Energy Florida in the amount of approximately $34 million, which includes prejudgment interest. Westinghouse has appealed the trial court's order to the U.S. Court of Appeals for the Fourth Circuit (Fourth Circuit Court) and Duke Energy Florida has cross-appealed. Duke Energy Florida cannot predict the ultimate outcome of the appeal of the trial court's order.
On March 29, 2017, Westinghouse filed Chapter 11 bankruptcy in the Southern District of New York, which automatically stayed the appeal. On May 23, 2017, the bankruptcy court entered an order lifting the stay with respect to the appeal. Briefing of the appeal concluded on October 20, 2017, and the parties await a decision form the Fourth Circuit Court on whether it will allow oral argument of the appeal.
Ultimate resolution of these matters could have a material effect on the results of operations, financial position or cash flows of Duke Energy Florida. See discussion of the 2017 Settlement and the Levy Nuclear Project in Note 4 for additional information regarding recovery of costs related to Westinghouse.
MGP Cost Recovery Action
On December 30, 2011, Duke Energy Florida filed a lawsuit against FirstEnergy Corp. (FirstEnergy) to recover investigation and remediation costs incurred by Duke Energy Florida in connection with the restoration of two former MGP sites in Florida. Duke Energy Florida alleged that FirstEnergy, as the successor to Associated Gas & Electric Co., owes past and future contribution and response costs of up to $43 million for the investigation and remediation of MGP sites. On December 6, 2016, the trial court entered judgment against Duke Energy Florida in the case. In January 2017, Duke Energy Florida appealed the decision to the U.S. Court of Appeals for the 6th Circuit and briefing has been completed. Duke Energy Florida cannot predict the outcome of this appeal.matter.
Other Litigation and Legal Proceedings
The Duke Energy Registrants are involved in other legal, tax and regulatory proceedings arising in the ordinary course of business, some of which involve significant amounts. The Duke Energy Registrants believe the final disposition of these proceedings will not have a material effect on their results of operations, cash flows or financial position.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The table below presents recorded reserves based on management’s best estimate of probable loss for legal matters, excluding asbestos-related reserves and the exit obligation discussed above related to the termination of an EPC contract. Reserves are classified on the Condensed Consolidated Balance Sheets in Other within Other Noncurrent Liabilities and Accounts payable and Other within Current Liabilities. The reasonably possible range of loss in excess of recorded reserves is not material, other than as described above.
(in millions)September 30, 2017
 December 31, 2016
Reserves for Legal Matters   
Duke Energy$83
 $98
Duke Energy Carolinas23
 23
Progress Energy56
 59
Duke Energy Progress13
 14
Duke Energy Florida28
 28
Duke Energy Ohio
 4
Piedmont2
 2
OTHER COMMITMENTS AND CONTINGENCIES
General
As part of their normal business, the Duke Energy Registrants are party to various financial guarantees, performance guarantees and other contractual commitments to extend guarantees of credit and other assistance to various subsidiaries, investees and other third parties. These guarantees involve elements of performance and credit risk, which are not fully recognized on the Condensed Consolidated Balance Sheets and have unlimiteduncapped maximum potential payments. However, the Duke Energy Registrants do not believe these guarantees will have a material effect on their results of operations, cash flows or financial position.
In addition, the Duke Energy Registrants enter into various fixed-price, noncancelable commitments to purchase or sell power or natural gas, take-or-pay arrangements, transportation, or throughput agreements and other contracts that may or may not be recognized on their respective Condensed Consolidated Balance Sheets. Some of these arrangements may be recognized at fair value on their respective Condensed Consolidated Balance Sheets if such contracts meet the definition of a derivative and the normal purchase/normal sale (NPNS)NPNS exception does not apply. In most cases, the Duke Energy Registrants’ purchase obligation contracts contain provisions for price adjustments, minimum purchase levels and other financial commitments.
52
6.

FINANCIAL STATEMENTSDEBT AND CREDIT FACILITIES

5. DEBT AND CREDIT FACILITIES
SUMMARY OF SIGNIFICANT DEBT ISSUANCES
The following table summarizes significant debt issuances (in millions). Refer
Three Months Ended March 31, 2022
DukeDuke
MaturityInterestDukeEnergyEnergy
Issuance DateDateRateEnergyCarolinasProgress
First Mortgage Bonds
March 2022(a)
March 20322.850 %$500 $500 $ 
March 2022(a)
March 20523.550 %650 650  
March 2022(a)
April 20323.400 %500  500 
March 2022(a)
April 20524.000 %400  400 
Total issuances$2,050 $1,150 $900 
(a)Proceeds will be used to the "Available Credit Facilities" section below regarding amounts issuedfinance or refinance, in whole or in part, existing or new eligible projects under the Three Year Revolver and the Piedmont Term Loan facilities.
    Nine Months Ended September 30, 2017
      Duke
 Duke
 Duke
 Duke
 MaturityInterest
 Duke
 Energy
 Energy
 Energy
 Energy
Issuance DateDateRate
 Energy
 (Parent)
 Progress
 Florida
 Ohio
Unsecured Debt            
April 2017(a)
April 20253.364% $420
 $420
 $
 $
 $
June 2017(b)
June 20202.100% 330
 330
 
 
 
August 2017(c)
August 20222.400% 500
 500
 
 
 
August 2017(c)
August 20273.150% 750
 750
 
 
 
August 2017(c)
August 20473.950% 500
 500
 
 
 
Secured Debt            
February 2017(d)
June 20344.120% 587
 
 
 
 
August 2017(e)
December 20364.110% 233
 
 
 
 
First Mortgage Bonds            
January 2017(f)
January 20201.850% 250
 
 
 250
 
January 2017(f)
January 20273.200% 650
 
 
 650
 
March 2017(g)
June 20463.700%
100


 
 
 100
September 2017(h)
September 20201.500%
(i) 
300


 300
 
 
September 2017(h)
September 20473.600% 500
 
 500
 
 
Total issuances   $5,120
 $2,500

$800
 $900

$100

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





(a)Proceeds were used to refinance $400 million of unsecured debt at maturity and to repay a portion of outstanding commercial paper.
(b)Debt issued to repay a portion of outstanding commercial paper.
(c)Debt issued to repay at maturity $700 million of unsecured debt, to repay outstanding commercial paper and for general corporate purposes.
(d)Portfolio financing of four Texas and Oklahoma wind facilities. Secured by substantially all of the assets of these wind facilities and nonrecourse to Duke Energy. Proceeds were used to reimburse Duke Energy for a portion of previously funded construction expenditures.
(e)Portfolio financing of eight solar facilities located in California, Colorado and New Mexico. Secured by substantially all of the assets of these solar facilities and nonrecourse to Duke Energy. Proceeds were used to reimburse Duke Energy for a portion of previously funded construction expenditures.
(f)Debt issued to fund capital expenditures for ongoing construction and capital maintenance, to repay a $250 million aggregate principal amount of bonds at maturity and for general corporate purposes.
(g)Proceeds were used to fund capital expenditures for ongoing construction, capital maintenance and for general corporate purposes.
(h)Debt issued to repay at maturity a $200 million aggregate principal amount of bonds due November 2017, pay down intercompany short-term debt and for general corporate purposes, including capital expenditures.
(i)    Debt issuance has a floating interest rate.sustainable financing framework.
CURRENT MATURITIES OF LONG-TERM DEBT
The following table shows the significant components of Current Maturitiesmaturities of Long-Term Debtlong-term debt on the Condensed Consolidated Balance Sheets. The Duke Energy Registrants currently anticipate satisfying these obligations with cash on hand and proceeds from additional borrowings.
(in millions)Maturity Date Interest Rate
 September 30, 2017
(in millions)Maturity DateInterest RateMarch 31, 2022
Unsecured Debt    Unsecured Debt
Progress EnergyProgress EnergyApril 20223.150 %$450 
Duke Energy (Parent)June 2018 6.250% $250
Duke Energy (Parent)August 20223.050 %500 
Duke Energy (Parent)June 2018 2.100% 500
Duke Energy (Parent)August 20222.400 %500 
First Mortgage Bonds    First Mortgage Bonds
Duke Energy CarolinasDuke Energy CarolinasMay 20223.350 %350 
Duke Energy ProgressNovember 2017 1.516%
(b) 
200
Duke Energy ProgressMay 20222.800 %500 
Duke Energy CarolinasJanuary 2018 5.250% 400
Duke Energy CarolinasMarch 20232.500 %500 
Duke Energy CarolinasApril 2018 5.100% 300
Duke Energy CarolinasMarch 20233.050 %500 
Duke Energy FloridaJune 2018 5.650% 500
Other(a)
   335
Other(a)
584 
Current maturities of long-term debt   $2,485
Current maturities of long-term debt$3,884 
(a)Includes capitalfinance lease obligations, amortizing debt, tax-exempt bonds with mandatory put options and small bullet maturities.
(b)    Debt issuance has a floating interest rate.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





AVAILABLE CREDIT FACILITIES
Master Credit Facility
In March 2017,2022, Duke Energy amended its existing Master Credit Facility to increase its capacitythe amount of the facility from $7.5$8 billion to $8$9 billion and to extend the termination date of the facility from January 30, 2020, to March 16, 2022.2027. The amendment also added Piedmont as a borrower within the Master Credit Facility. Piedmont's separate $850 million credit facility was terminated in connection with the amendment. With the amendment, the Duke Energy Registrants, excluding Progress Energy, (Parent), have borrowing capacity under the Master Credit Facility up to a specified sublimit for each borrower. Duke Energy has the unilateral ability at any time to increase or decrease the borrowing sublimits of each borrower, subject to a maximum sublimit for each borrower. The amount available under the Master Credit Facility has been reduced to backstop issuances of commercial paper, certain letters of credit and variable-rate demand tax-exempt bonds that may be put to the Duke Energy Registrants at the option of the holder. Duke Energy Carolinas and Duke Energy Progress are also required to each maintain $250 million of available capacity under the Master Credit Facility as security to meet obligations under plea agreements reached with the U.S. Department of Justice in 2015 related to violations at North Carolina facilities with ash basins.
53

FINANCIAL STATEMENTSDEBT AND CREDIT FACILITIES

The table below includes the current borrowing sublimits and available capacity under these credit facilities.
March 31, 2022
DukeDukeDukeDukeDukeDuke
DukeEnergyEnergyEnergyEnergyEnergyEnergy
(in millions)Energy(Parent)CarolinasProgressFloridaOhioIndianaPiedmont
Facility size(a)
$9,000 $3,300 $1,225 $1,400 $900 $775 $600 $800 
Reduction to backstop issuances
Commercial paper(b)
(2,819)(1,715)(300)(150)(236)(86)(150)(182)
Outstanding letters of credit(38)(25)(4)(2)(7)   
Tax-exempt bonds(81)     (81) 
Available capacity under the Master Credit Facility$6,062 $1,560 $921 $1,248 $657 $689 $369 $618 
(a)Represents the Mastersublimit of each borrower.
(b)Duke Energy issued $625 million of commercial paper and loaned the proceeds through the money pool to Duke Energy Carolinas, Duke Energy Progress, Duke Energy Ohio and Duke Energy Indiana. The balances are classified as Long-Term Debt Payable to Affiliated Companies on the Condensed Consolidated Balance Sheets.
Other Credit Facility.Facilities
 September 30, 2017
 

 Duke
 Duke
 Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Energy
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 (Parent)
 Carolinas
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Facility size(a)
$8,000
 $2,850
 $1,350
 $1,250
 $1,000
 $450
 $600
 $500
Reduction to backstop issuances               
Commercial paper(b)
(1,569) (404) (636) (150) 
 (25) (150) (204)
Outstanding letters of credit(60) (51) (4) (2) (1) 
 
 (2)
Tax-exempt bonds(81) 
 
 
 
 
 (81) 
Coal ash set-aside(500) 
 (250) (250) 
 
 
 
Available capacity under the Master Credit Facility$5,790

$2,395

$460

$848

$999

$425

$369
 $294
(a)Represents the sublimit of each borrower.
(b)Duke Energy issued $625 million of commercial paper and loaned the proceeds through the money pool to Duke Energy Carolinas, Duke Energy Progress, Duke Energy Ohio and Duke Energy Indiana. The balances are classified as Long-Term Debt Payable to Affiliated Companies on the Condensed Consolidated Balance Sheets.
Three-Year Revolving CreditDuke Energy (Parent) Term Loan Facility
In June 2017,On March 9, 2022, Duke Energy (Parent) entered into a three-year $1.0Term Loan Credit Agreement (Credit Agreement) with commitments totaling $1.4 billion revolving credit facility (the Three Year Revolver).maturing March 9, 2024. The maturity date of the Credit Agreement may be extended for up to two years by request of Duke Energy (Parent), upon satisfaction of certain conditions contained in the Credit Agreement. Borrowings under thisthe facility will bewere used to repay amounts drawn under the Three-Year Revolving Credit Facility and for general corporate purposes.
Aspurposes, including repayment of September 30, 2017, $270 million has been drawn under the Three Year Revolver. Thisa portion of Duke Energy's outstanding commercial paper. The balance is classified as Long-Term Debt on Duke Energy's Condensed Consolidated Balance Sheets. Any undrawn commitments can be drawn, and borrowings can be prepaid, at any time throughout the term of the facility. The terms and conditions of the Three Year Revolver are generally consistent with those governing Duke Energy's MasterThree-Year Revolving Credit Facility.Facility was terminated in March 2022.
Piedmont Term Loan FacilityIntercompany Credit Agreements
In June 2017, Piedmont entered into an 18-month term loan facilityMarch 2022, Progress Energy closed a revolving credit agreement with commitments totaling $250 million (the Piedmont Term Loan). Borrowings under the facility will be used for general corporate purposes.
As of September 30, 2017, the entire $250 million has been drawn under the Piedmont Term Loan. This balance is classified as Long-Term Debt on Piedmont's Condensed Consolidated Balance Sheets. The terms and conditions of the Piedmont Term Loan are generally consistent with those governing Duke Energy's Master Credit Facility.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





7. ASSET RETIREMENT OBLIGATIONS
The Duke Energy Registrants record AROs when there is a legal obligation(Parent), which allowed up to incur retirement costs associated with the retirement of a long-lived asset and the obligation can be reasonably estimated. The following table presents the AROs recorded on the Condensed Consolidated Balance Sheets.$2.5 billion in intercompany borrowings.
 September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Decommissioning of Nuclear Power Facilities(a)
$5,337
 $1,916
 $3,235
 $2,536
 $699
 $
 $
 $
Closure of Ash Impoundments4,594
 1,650
 2,124
 2,105
 19
 42
 777
 
Other274
 35
 80
 35
 45
 39
 16
 15
Total ARO$10,205
 $3,601
 $5,439
 $4,676
 $763
 $81
 $793
 $15
Less: current portion619
 304
 250
 250
 
 6
 58
 
Total noncurrent ARO$9,586

$3,297

$5,189

$4,426

$763

$75

$735
 $15
(a)    Duke Energy amount includes purchase accounting adjustments related to the merger with Progress Energy.
ARO Liability Rollforward
Actual closure costs incurred could be materially different from current estimates that form the basis of the recorded AROs. The following table presents the change in liability associated with AROs for the Duke Energy Registrants.
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Balance at December 31, 2016(a)
$10,611
 $3,895
 $5,475
 $4,697
 $778
 $77
 $866
 $14
Accretion expense(b)
329
 140
 172
 147
 25
 3
 25
 1
Liabilities settled(c)
(430) (201) (193) (152) (41) (4) (26) (7)
Liabilities incurred in the current year48
 5
 
 
 
 7
 27
 7
Revisions in estimates of cash flows(d)
(353) (238) (15) (16) 1
 (2) (99) 
Balance at September 30, 2017$10,205
 $3,601
 $5,439
 $4,676
 $763
 $81
 $793
 $15
(a)Primarily relates to decommissioning nuclear power facilities, closure of ash impoundments, asbestos removal, closure of landfills at fossil generation facilities, retirement of natural gas mains and removal of renewable energy generation assets.
(b)For the nine months ended September 30, 2017, substantially all accretion expense relates to Duke Energy's regulated electric operations and has been deferred in accordance with regulatory accounting treatment.
(c)Primarily relates to ash impoundment closures and nuclear decommissioning of Crystal River Unit 3.
(d)Primarily relates to favorable contract prices for closure of ash impoundments compared to original estimates.
Asset retirement costs associated with the AROs for operating plants and retired plants are included in Net property, plant and equipment and Regulatory assets within Other Noncurrent Assets, respectively, on the Condensed Consolidated Balance Sheets.
8. GOODWILL AND INTANGIBLE ASSETS
6. GOODWILL
Duke Energy
The following table presents the goodwill by reportable operating segment included on Duke Energy's Condensed Consolidated Balance Sheets at September 30, 2017,March 31, 2022, and December 31, 2016.
2021.
 Electric Utilities
 Gas Utilities
 Commercial
  
(in millions)and Infrastructure
 and Infrastructure
 Renewables
 Total
Goodwill Balance at December 31, 2016$17,379
 $1,924
 $122
 $19,425
Accumulated impairment charges (a)

 
 (7) (7)
Goodwill Balance at September 30, 2017$17,379
 $1,924
 $115
 $19,418
(a)Duke Energy evaluated the recoverability of goodwill in the third quarter of 2017 and recorded an impairment of $7 million related to the Energy Management Solutions reporting unit within the Commercial Renewables segment. The fair value of the reporting unit was determined based on the market approach, which estimates fair value based on market comparables within the energy technologies industry.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Electric UtilitiesGas UtilitiesCommercial
(in millions)and Infrastructureand InfrastructureRenewablesTotal
Goodwill balance$17,379 $1,924 $122 $19,425 
Accumulated impairment charges  (122)(122)
Goodwill, adjusted for accumulated impairment charges$17,379 $1,924 $ $19,303 
Duke Energy Ohio
Duke Energy Ohio's Goodwill balance of $920 million, allocated $596 million to Electric Utilities and Infrastructure and $324 million to Gas Utilities and Infrastructure, is presented net of accumulated impairment charges of $216 million on the Condensed Consolidated Balance Sheets at September 30, 2017,March 31, 2022, and December 31, 2016.2021.
Progress Energy
Progress Energy's Goodwill is included in the Electric Utilities and Infrastructure operating segment and there are no accumulated impairment charges.
Piedmont
Piedmont's Goodwill is included in the Gas Utilities and Infrastructure operating segment and there are no accumulated impairment charges. Effective November 1, 2016, Piedmont's fiscal year was changed from October 31 to December 31. Effective with this change, Piedmont changed the date of its annual impairment testing of goodwill from October 31 to August 31 to align with the other Duke Energy Registrants.
Impairment Testing
Duke Energy, Progress Energy, Duke Energy Ohio and Piedmont are required to perform an annual goodwill impairment test as of the same date each year and, accordingly, perform their annual impairment testing of goodwill as of August 31. Duke Energy, Progress Energy, Duke Energy Ohio and Piedmont update their test between annual tests if events or circumstances occur that would more likely than not reduce the fair value of a reporting unit below its carrying value. Except for the Energy Management Solutions reporting unit, the fair value of all other reporting units for Duke Energy, Progress Energy, Duke Energy Ohio and Piedmont exceeded their respective carrying values at the date of the annual impairment analysis. As such, no other impairment charges were recorded in the third quarter of 2017.

54
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






FINANCIAL STATEMENTSRELATED PARTY TRANSACTIONS
9.
7. RELATED PARTY TRANSACTIONS
The Subsidiary Registrants engage in related party transactions in accordance with applicable state and federal commission regulations. Refer to the Condensed Consolidated Balance Sheets of the Subsidiary Registrants for balances due to or due from related parties. Material amounts related to transactions with related parties included on the Condensed Consolidated Statements of Operations and Comprehensive Income are presented in the following table.
Three Months Ended March 31,
(in millions)20222021
Duke Energy Carolinas
Corporate governance and shared service expenses(a)
$206 $203 
Indemnification coverages(b)
7 
Joint Dispatch Agreement (JDA) revenue(c)
26 13 
JDA expense(c)
94 40 
Intercompany natural gas purchases(d)
13 14 
Progress Energy
Corporate governance and shared service expenses(a)
$196 $181 
Indemnification coverages(b)
11 10 
JDA revenue(c)
94 40 
JDA expense(c)
26 13 
Intercompany natural gas purchases(d)
19 19 
Duke Energy Progress
Corporate governance and shared service expenses(a)
$119 $105 
Indemnification coverages(b)
5 
JDA revenue(c)
94 40 
JDA expense(c)
26 13 
Intercompany natural gas purchases(d)
19 19 
Duke Energy Florida
Corporate governance and shared service expenses(a)
$77 $76 
Indemnification coverages(b)
6 
Duke Energy Ohio
Corporate governance and shared service expenses(a)
$82 $79 
Indemnification coverages(b)
1 
Duke Energy Indiana
Corporate governance and shared service expenses(a)
$124 $113 
Indemnification coverages(b)
2 
Piedmont
Corporate governance and shared service expenses(a)
$35 $33 
Indemnification coverages(b)
1 
Intercompany natural gas sales(d)
32 33 
Natural gas storage and transportation costs(e)
6 
(a)The Subsidiary Registrants are charged their proportionate share of corporate governance and other shared services costs, primarily related to human resources, employee benefits, information technology, legal and accounting fees, as well as other third-party costs. These amounts are primarily recorded in Operation, maintenance and other on the Condensed Consolidated Statements of Operations and Comprehensive Income.
(b)The Subsidiary Registrants incur expenses related to certain indemnification coverages through Bison, Duke Energy’s wholly owned captive insurance subsidiary. These expenses are recorded in Operation, maintenance and other on the Condensed Consolidated Statements of Operations and Comprehensive Income.
(c)Duke Energy Carolinas and Duke Energy Progress participate in a JDA, which allows the collective dispatch of power plants between the service territories to reduce customer rates. Revenues from the sale of power and expenses from the purchase of power pursuant to the JDA are recorded in Operating Revenues and Fuel used in electric generation and purchased power, respectively, on the Condensed Consolidated Statements of Operations and Comprehensive Income.
(d)Piedmont provides long-term natural gas delivery service to certain Duke Energy Carolinas and Duke Energy Progress natural gas-fired generation facilities. Piedmont records the sales in Operating revenues, and Duke Energy Carolinas and Duke Energy Progress record the related purchases as a component of Fuel used in electric generation and purchased power on their respective Condensed Consolidated Statements of Operations and Comprehensive Income.
(e)Piedmont has related party transactions as a customer of its equity method investments in Pine Needle LNG Company, LLC, Hardy Storage Company, LLC and Cardinal Pipeline Company, LLC natural gas storage and transportation facilities. These expenses are included in Cost of natural gas on Piedmont's Condensed Consolidated Statements of Operations and Comprehensive Income.
55

 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 2017
 2016
Duke Energy Carolinas       
Corporate governance and shared service expenses(a)
$205
 $204
 $645
 $620
Indemnification coverages(b)
5
 5
 17
 16
JDA revenue(c)
9
 10
 42
 21
JDA expense(c)
39
 36
 91
 127
Intercompany natural gas purchases(d)
3
 
 5
 
Progress Energy       
Corporate governance and shared service expenses(a)
$208
 $182
 $555
 $515
Indemnification coverages(b)
10
 9
 29
 25
JDA revenue(c)
39
 36
 91
 127
JDA expense(c)
9
 10
 42
 21
Intercompany natural gas purchases(d)
19
 
 57
 
Duke Energy Progress       
Corporate governance and shared service expenses(a)
$114
 $103
 $321
 $292
Indemnification coverages(b)
4
 4
 11
 10
JDA revenue(c)
39
 36
 91
 127
JDA expense(c)
9
 10
 42
 21
Intercompany natural gas purchases(d)
19
 
 57
 
Duke Energy Florida       
Corporate governance and shared service expenses(a)
$94
 $79
 $234
 $223
Indemnification coverages(b)
6
 5
 18
 15
Duke Energy Ohio       
Corporate governance and shared service expenses(a)
$90
 $89
 $275
 $261
Indemnification coverages(b)
1
 1
 3
 4
Duke Energy Indiana       
Corporate governance and shared service expenses(a)
$93
 $96
 $281
 $279
Indemnification coverages(b)
2
 2
 6
 6
Piedmont       
Corporate governance and shared service expenses(a)
$10
 $
 $25
 $
Indemnification coverages(b)
1
 
 2
 
Intercompany natural gas sales(d)
22
 
 62
 
(a)FINANCIAL STATEMENTSThe Subsidiary Registrants are charged their proportionate share of corporate governance and other shared services costs, primarily related to human resources, employee benefits, information technology, legal and accounting fees, as well as other third-party costs. These amounts are primarily recorded in Operation, maintenance and other on the Condensed Consolidated Statements of Operations and Comprehensive Income.RELATED PARTY TRANSACTIONS
(b)The Subsidiary Registrants incur expenses related to certain indemnification coverages through Bison, Duke Energy’s wholly owned captive insurance subsidiary. These expenses are recorded in Operation, maintenance and other on the Condensed Consolidated Statements of Operations and Comprehensive Income.
(c)Duke Energy Carolinas and Duke Energy Progress participate in a Joint Dispatch Agreement (JDA), which allows the collective dispatch of power plants between the service territories to reduce customer rates. Revenues from the sale of power and expenses from the purchase of power pursuant to the JDA are recorded in Operating Revenues and Fuel used in electric generation and purchased power, respectively, on the Condensed Consolidated Statements of Operations and Comprehensive Income.
(d)Piedmont provides long-term natural gas delivery service to certain Duke Energy Carolinas and Duke Energy Progress natural gas-fired generation facilities. Piedmont records the sales in Regulated natural gas revenues, and Duke Energy Carolinas and Duke Energy Progress record the related purchases in Fuel used in electric generation and purchased power on their respective Condensed Consolidated Statements of Operations and Comprehensive Income. The amounts are not eliminated in accordance with rate-based accounting regulations. For the three and nine months ended September 30, 2016, which was prior to the Piedmont acquisition, Piedmont recorded $19 million and $57 million, respectively, of natural gas sales with Duke Energy Progress and $1 million and $3 million, respectively, with Duke Energy Carolinas.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





In addition to the amounts presented above, the Subsidiary Registrants have other affiliate transactions, including rental of office space, participation in a money pool arrangement, other operational transactions, such as pipeline lease arrangements, and their proportionate share of certain charged expenses. See Note 6 to the Consolidated Financial Statements in the Annual Report on Form 10-K for the year ended December 31, 2016, for more information regarding the money pool. These transactions of the Subsidiary Registrants were not material forare incurred in the threeordinary course of business and nine months ended September 30, 2017, and 2016.are eliminated in consolidation.
As discussed in Note 13,11, certain trade receivables have been sold by Duke Energy Ohio and Duke Energy Indiana to CRC, an affiliate formed by a subsidiary of Duke Energy. The proceeds obtained from the sales of receivables are largely cash but alsodo include a subordinated note from the affiliateCRC for a portion of the purchase price.
Equity Method Investments
Piedmont has related party transactions as a customer of its equity method investments in natural gas storage and transportation facilities. The following table presents expenses for the three and nine months ended September 30, 2017, and 2016, which are included in Cost of natural gas on Piedmont's Condensed Consolidated Statements of Operations and Comprehensive Income.
  Three Months Ended September 30, Nine Months Ended September 30,
(in millions)Type of expense20172016 20172016
CardinalTransportation Costs$2
$3
 $6
$7
Pine NeedleNatural Gas Storage Costs2
3
 6
8
Hardy StorageNatural Gas Storage Costs2
2
 7
7
Total $6
$8
 $19
$22
Piedmont had accounts payable to its equity method investments of $2 million at September 30, 2017, and December 31, 2016, related to these transactions. These amounts are included in Accounts payable on the Condensed Consolidated Balance Sheets.
Intercompany Income Taxes
Duke Energy and the Subsidiary Registrants file a consolidated federal income tax return and other state and jurisdictional returns. The Subsidiary Registrants have a tax sharing agreement with Duke Energy for the allocation of consolidated tax liabilities and benefits. Income taxes recorded represent amounts the Subsidiary Registrants would incur as separate C-Corporations. The following table includes the balance of intercompany income tax receivables and payables for the Subsidiary Registrants.
DukeDukeDukeDukeDuke
EnergyProgressEnergyEnergyEnergyEnergy
(in millions)CarolinasEnergyProgressFloridaOhioIndianaPiedmont
March 31, 2022
Intercompany income tax receivable$20 $49 $ $9 $5 $ $ 
Intercompany income tax payable  15   44 45 
December 31, 2021
Intercompany income tax receivable$— $— $— $40 $19 $— $— 
Intercompany income tax payable62 — 84 — — 10 27 
 Duke
 Duke
Duke
Duke
Duke
 
 Energy
Progress
Energy
Energy
Energy
Energy
 
(in millions)Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
September 30, 2017       
Intercompany income tax receivable$
$170
$
$120
$
$
$89
Intercompany income tax payable173

46

18
104

        
December 31, 2016       
Intercompany income tax receivable$1
$
$
$37
$
$
$
Intercompany income tax payable
37
90

1
3
38
10.8. DERIVATIVES AND HEDGING
The Duke Energy Registrants use commodity and interest rate contracts to manage commodity price risk and interest rate risk. The primary use of commodity derivatives is to hedge the generation portfolio against changes in the prices of electricity and natural gas. Piedmont enters into natural gas supply contracts to provide diversification, reliability and natural gas cost benefits to its customers. Interest rate swapsderivatives are used to manage interest rate risk associated with borrowings.
All derivative instruments not identified as NPNS are recorded at fair value as assets or liabilities on the Condensed Consolidated Balance Sheets. Cash collateral related to derivative instruments executed under master netting arrangements is offset against the collateralized derivatives on the Condensed Consolidated Balance Sheets. The cash impacts of settled derivatives are recorded as operating activities on the Condensed Consolidated Statements of Cash Flows.
INTEREST RATE RISK
The Duke Energy Registrants are exposed to changes in interest rates as a result of their issuance or anticipated issuance of variable-rate and fixed-rate debt and commercial paper. Interest rate risk is managed by limiting variable-rate exposures to a percentage of total debt and by monitoring changes in interest rates. To manage risk associated with changes in interest rates, the Duke Energy Registrants may enter into interest rate swaps, U.S. Treasury lock agreements and other financial contracts. In anticipation of certain fixed-rate debt issuances, a series of forward-starting interest rate swaps or Treasury locks may be executed to lock in components of current market interest rates. These instruments are later terminated prior to or upon the issuance of the corresponding debt.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Cash Flow Hedges
For a derivative designated as hedging the exposure to variable cash flows of a future transaction, referred to as a cash flow hedge, the effective portion of the derivative's gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings once the future transaction impacts earnings. Amounts for interest rate contracts are reclassified to earnings as interest expense over the term of the related debt. Gains and losses reclassified out of AOCIaccumulated other comprehensive loss for the three and nine months ended September 30, 2017,March 31, 2022, and 2021, were not material. Duke Energy's interest rate derivatives designated as hedges include interest rate swaps used to hedge existing debt within the Commercial Renewables business.segment and forward-starting interest rate swaps not accounted for under regulatory accounting.
Undesignated Contracts
Undesignated contracts primarily include contracts not designated as a hedge because they are accounted for under regulatory accounting andor contracts that do not qualify for hedge accounting.
Duke Energy’s interest rate swaps for its regulated operations employ regulatory accounting. With regulatory accounting, the mark-to-market gains or losses on the swaps are deferred as regulatory liabilities or regulatory assets, respectively. Regulatory assets and liabilities are amortized consistent with the treatment of the related costs in the ratemaking process. The accrual of interest on the swaps is recorded as Interest Expense.
In August 2016,Expense on the Duke Energy unwound $1.4 billion of forward-starting interest rate swaps associated with the Piedmont acquisition financing. The swaps were considered undesignated as they did not qualify for hedge accounting. For the three and nine months ended September 30, 2016, losses on the swaps of $22 million and $190 million, respectively, were included within Interest Expense on Duke Energy'sRegistrant's Condensed Consolidated Statements of Operations. See Note 2 for additional information related to the Piedmont acquisition.Operations and Comprehensive Income.
56

FINANCIAL STATEMENTSDERIVATIVES AND HEDGING

The following table shows notional amounts of outstanding derivatives related to interest rate risk.
 September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
Cash flow hedges(a)
$703
 $
 $
 $
 $
 $
Undesignated contracts927
 400
 500
 250
 250
 27
Total notional amount$1,630

$400

$500

$250

$250

$27
December 31, 2016March 31, 2022
  Duke
   Duke
 Duke
 Duke
DukeDukeDuke
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
DukeEnergyEnergyEnergy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
(in millions)EnergyCarolinasIndianaOhio
Cash flow hedges(a)
$750
 $
 $
 $
 $
 $
Cash flow hedgesCash flow hedges$2,913 $ $ $ 
Undesignated contracts927
 400
 500
 250
 250
 27
Undesignated contracts577 250 300 27 
Total notional amount$1,677
 $400
 $500
 $250
 $250
 $27
Total notional amount(a)
Total notional amount(a)
$3,490 $250 $300 $27 
December 31, 2021
DukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressIndianaOhio
Cash flow hedges$2,415 $— $— $— $— $— 
Undesignated contracts1,177 350 500 500 300 27 
Total notional amount(a)
$3,592 $350 $500 $500 $300 $27 
(a)Duke Energy includes amounts related to consolidated VIEs of $703 million and $750 million as of September 30, 2017, and December 31, 2016, respectively.
(a)Duke Energy includes amounts related to consolidated VIEs of $663 million and $665 million in cash flow hedges as of March 31, 2022 and December 31, 2021, respectively.
COMMODITY PRICE RISK
The Duke Energy Registrants are exposed to the impact of changes in the prices of electricity purchased and sold in bulk power markets and coal and natural gas purchases, including Piedmont's natural gas supply contracts. Exposure to commodity price risk is influenced by a number of factors including the term of contracts, the liquidity of markets and delivery locations. To manage risk associated with commodity prices, the Duke Energy Registrants may enter into long-term power purchase or sales contracts and long-term natural gas supply agreements.
Cash Flow Hedges
For derivatives designated as hedging the exposure to variable cash flows of a future transaction, referred to as a cash flow hedge, the derivative's gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings once the future transaction impacts earnings. Gains and losses reclassified out of accumulated other comprehensive loss for the three months ended March 31, 2022, and 2021, were not material. Duke Energy’s commodity derivatives designated as hedges include long-term electricity sales in the Commercial Renewables segment.
Undesignated Contracts
For the Subsidiary Registrants, bulk power electricity and coal and natural gas purchases flow through fuel adjustment clauses, formula-based contracts or other cost-sharing mechanisms. Differences between the costs included in rates and the incurred costs, including undesignated derivative contracts, are largely deferred as regulatory assets or regulatory liabilities. Piedmont policies allow for the use of financial instruments to hedge commodity price risks. The strategy and objective of these hedging programs are to use the financial instruments to reduce natural gas costs volatility for customers.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Volumes
The tables below include volumes of outstanding commodity derivatives. Amounts disclosed represent the absolute value of notional volumes of commodity contracts excluding NPNS. The Duke Energy Registrants have netted contractual amounts where offsetting purchase and sale contracts exist with identical delivery locations and times of delivery. Where all commodity positions are perfectly offset, no quantities are shown.
 September 30, 2017
   Duke
   Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
  
 Energy
 Carolinas
 Energy
 Progress
 Florida
 Indiana
 Piedmont
Electricity (gigawatt-hours)112
 
 
 
 
 112
 
Natural gas (millions of dekatherms)786
 103
 193
 124
 69
 1
 489
March 31, 2022
December 31, 2016DukeDukeDukeDuke
  Duke
   Duke
 Duke
 Duke
  DukeEnergyProgressEnergyEnergyEnergy
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
  EnergyCarolinasEnergyProgressOhioIndianaPiedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Indiana
 Piedmont
Electricity (gigawatt-hours)147
 
 
 
 
 147
 
Electricity (GWh)(a)
Electricity (GWh)(a)
16,176    791 4,501  
Natural gas (millions of dekatherms)890
 91
 269
 118
 151
 1
 529
Natural gas (millions of dekatherms)860 284 243 243  7 326 
57

FINANCIAL STATEMENTSDERIVATIVES AND HEDGING


December 31, 2021
DukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergy
EnergyCarolinasEnergyProgressOhioIndianaPiedmont
Electricity (GWh)(a)
22,344 — — — 1,681 10,688 — 
Natural gas (millions of dekatherms)823 264 215 215 — 336 
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes(a)Duke Energy includes 9,763 GWh and 9,975 GWh related to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





cash flow hedges as of March 31, 2022, and December 31, 2021, respectively.
LOCATION AND FAIR VALUE OF DERIVATIVE ASSETS AND LIABILITIES RECOGNIZED ON THE CONDENSED CONSOLIDATED BALANCE SHEETS
The following tables show the fair value and balance sheet location of derivative instruments. Although derivatives subject to master netting arrangements are netted on the Condensed Consolidated Balance Sheets, the fair values presented below are shown gross and cash collateral on the derivatives has not been netted against the fair values shown.
Derivative Assets September 30, 2017
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Commodity Contracts                
Not Designated as Hedging Instruments                
Current $48
 $6
 $10
 $5
 $4
 $2
 $28
 $2
Noncurrent 6
 2
 4
 3
 1
 
 
 
Total Derivative Assets – Commodity Contracts $54
 $8
 $14
 $8
 $5
 $2
 $28
 $2
Interest Rate Contracts                
Designated as Hedging Instruments                
Noncurrent $14
 $
 $
 $
 $
 $
 $
 $
Not Designated as Hedging Instruments                
Current 1
 
 1
 
 1
 
 
 
Total Derivative Assets – Interest Rate Contracts $15
 $
 $1
 $
 $1
 $
 $
 $
Total Derivative Assets $69

$8

$15

$8

$6

$2

$28
 $2
Derivative Liabilities September 30, 2017
Derivative AssetsDerivative AssetsMarch 31, 2022
   Duke
   Duke
 Duke
 Duke
 Duke
  DukeDukeDukeDukeDuke
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Commodity Contracts                Commodity Contracts
Not Designated as Hedging Instruments                Not Designated as Hedging Instruments
Current $29
 $1
 $11
 $2
 $9
 $
 $
 $18
Current$673 $335 $295 $255 $40 $ $28 $7 
Noncurrent 113
 1
 7
 1
 
 
 
 105
Noncurrent280 151 130 130     
Total Derivative Liabilities – Commodity Contracts $142
 $2
 $18
 $3
 $9
 $
 $
 $123
Total Derivative Assets – Commodity ContractsTotal Derivative Assets – Commodity Contracts$953 $486 $425 $385 $40 $ $28 $7 
Interest Rate Contracts                Interest Rate Contracts
Designated as Hedging Instruments                Designated as Hedging Instruments
Current $7
 $
 $
 $
 $
 $
 $
 $
Current$94 $ $ $ $ $ $ $ 
Noncurrent 9
 
 
 
 
 
 
 
Noncurrent37        
Not Designated as Hedging Instruments                Not Designated as Hedging Instruments
Current 24
 23
 
 
 
 1
 
 
Noncurrent 9
 
 4
 4
 
 4
 
 
Noncurrent24 7     17  
Total Derivative Liabilities – Interest Rate Contracts $49
 $23
 $4
 $4
 $
 $5
 $
 $
Total Derivative Liabilities $191

$25

$22

$7

$9

$5

$
 $123
Total Derivative Assets – Interest Rate ContractsTotal Derivative Assets – Interest Rate Contracts$155 $7 $ $ $ $ $17 $ 
Total Derivative AssetsTotal Derivative Assets$1,108 $493 $425 $385 $40 $ $45 $7 
58

FINANCIAL STATEMENTSDERIVATIVES AND HEDGING


Derivative LiabilitiesMarch 31, 2022
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Commodity Contracts
Designated as Hedging Instruments
Current$49 $ $ $ $ $ $  
Noncurrent160        
Not Designated as Hedging Instruments
Current61 36      24 
Noncurrent149 1      149 
Total Derivative Liabilities – Commodity Contracts$419 $37 $ $ $ $ $ $173 
Interest Rate Contracts
Designated as Hedging Instruments
Current$4 $ $ $ $ $ $ $ 
Noncurrent7        
Not Designated as Hedging Instruments
Current1     1   
Noncurrent2     2   
Total Derivative Liabilities – Interest Rate Contracts$14 $ $ $ $ $3 $ $ 
Total Derivative Liabilities$433 $37 $ $ $ $3 $ $173 
PART I
Derivative AssetsDecember 31, 2021
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Commodity Contracts
Not Designated as Hedging Instruments
Current$199 $99 $72 $72 $— $$23 $
Noncurrent113 63 50 50 — — — — 
Total Derivative Assets – Commodity Contracts$312 $162 $122 $122 $— $$23 $
Interest Rate Contracts
Designated as Hedging Instruments
Current$$— $— $— $— $— $— $— 
Noncurrent— — — — — — — 
Not Designated as Hedging Instruments
Current— — — — — 
Total Derivative Assets – Interest Rate Contracts$$— $$$— $— $— $— 
Total Derivative Assets$320 $162 $124 $124 $— $$23 $
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
59

FINANCIAL STATEMENTSDERIVATIVES AND HEDGING
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






Derivative Assets December 31, 2016
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Commodity Contracts                
Not Designated as Hedging Instruments                
Current $108
 $23
 $61
 $35
 $26
 $4
 $16
 $3
Noncurrent 32
 10
 21
 10
 11
 1
 
 
Total Derivative Assets – Commodity Contracts $140
 $33
 $82
 $45
 $37
 $5
 $16
 $3
Interest Rate Contracts                
Designated as Hedging Instruments                
Noncurrent $19
 $
 $
 $
 $
 $
 $
 $
Not Designated as Hedging Instruments                
Current 3
 
 3
 1
 2
 
 
 
Total Derivative Assets – Interest Rate Contracts $22
 $
 $3
 $1
 $2
 $
 $
 $
Total Derivative Assets $162
 $33
 $85
 $46
 $39
 $5
 $16
 $3
Derivative Liabilities December 31, 2016Derivative LiabilitiesDecember 31, 2021
   Duke
   Duke
 Duke
 Duke
 Duke
  DukeDukeDukeDukeDuke
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Commodity Contracts                Commodity Contracts
Designated as Hedging InstrumentsDesignated as Hedging Instruments
CurrentCurrent$27 $— $— $— $— $— $— $— 
NoncurrentNoncurrent117 — — — — — — — 
Not Designated as Hedging Instruments                Not Designated as Hedging Instruments
Current $43
 $
 $12
 $
 $12
 $
 $2
 $35
Current72 18 19 14 — 13 21 
Noncurrent 166
 1
 7
 1
 
 
 
 152
Noncurrent132 — — — 118 
Total Derivative Liabilities – Commodity Contracts $209
 $1
 $19
 $1
 $12
 $
 $2
 $187
Total Derivative Liabilities – Commodity Contracts$348 $27 $24 $10 $14 $— $13 $139 
Interest Rate Contracts                Interest Rate Contracts
Designated as Hedging Instruments                Designated as Hedging Instruments
Current $8
 $
 $
 $
 $
 $
 $
 $
Current$75 $— $— $— $— $— $— $— 
Noncurrent 8
 
 
 
 
 
 
 
Noncurrent21 — — — — — — — 
Not Designated as Hedging Instruments               
Not Designated as Hedging Instruments
Current 1
 
 
 
 
 1
 
 
Current10 — — — — — 
Noncurrent 26
 15
 6
 6
 
 5
 
 
Noncurrent18 — — — — 14 — 
Total Derivative Liabilities – Interest Rate Contracts $43
 $15
 $6
 $6
 $
 $6
 $
 $
Total Derivative Liabilities – Interest Rate Contracts$124 $$— $— $— $$14 $— 
Total Derivative Liabilities $252
 $16
 $25
 $7
 $12
 $6
 $2
 $187
Total Derivative Liabilities$472 $35 $24 $10 $14 $$27 $139 
OFFSETTING ASSETS AND LIABILITIES
The following tables present the line items on the Condensed Consolidated Balance Sheets where derivatives are reported. Substantially all of Duke Energy's outstanding derivative contracts are subject to enforceable master netting arrangements. The Grossgross amounts offset in the tables below show the effect of these netting arrangements on financial position, and include collateral posted to offset the net position. The amounts shown are calculated by counterparty. Accounts receivable or accounts payable may also be available to offset exposures in the event of bankruptcy. These amounts are not included in the tables below.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Derivative AssetsMarch 31, 2022
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Current
Gross amounts recognized$767 $335 $295 $255 $40 $ $28 $7 
Gross amounts offset(255)(149)(106)(106)    
Net amounts presented in Current Assets: Other$512 $186 $189 $149 $40 $ $28 $7 
Noncurrent
Gross amounts recognized$341 $158 $130 $130 $ $ $17 $ 
Gross amounts offset(115)(64)(51)(51)    
Net amounts presented in Other Noncurrent Assets: Other$226 $94 $79 $79 $ $ $17 $ 
Derivative Assets September 30, 2017
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $49
 $6
 $11
 $5
 $5
 $2
 $28
 $2
Gross amounts offset (3) 
 (3) (1) (2) 
 
 
Net amounts presented in Current Assets: Other $46
 $6
 $8
 $4
 $3
 $2
 $28
 $2
Noncurrent                
Gross amounts recognized $20
 $2
 $4
 $3
 $1
 $
 $
 $
Gross amounts offset (2) (1) (1) (1) 
 
 
 
Net amounts presented in Other Noncurrent Assets: Other $18
 $1
 $3
 $2
 $1
 $
 $
 $
Derivative Liabilities September 30, 2017
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $60
 $24
 $11
 $2
 $9
 $1
 $
 $18
Gross amounts offset (4) (1) (3) (1) (2) 
 
 
Net amounts presented in Current Liabilities: Other $56
 $23
 $8
 $1
 $7
 $1
 $
 $18
Noncurrent                
Gross amounts recognized $131
 $1
 $11
 $5
 $
 $4
 $
 $105
Gross amounts offset (2) (1) (1) (1) 
 
 
 
Net amounts presented in Other Noncurrent Liabilities: Other $129
 $
 $10
 $4
 $
 $4
 $
 $105
Derivative Assets December 31, 2016
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $111
 $23
 $64
 $36
 $28
 $4
 $16
 $3
Gross amounts offset (11) 
 (11) 
 (11) 
 
 
Net amounts presented in Current Assets: Other $100
 $23
 $53
 $36
 $17
 $4
 $16
 $3
Noncurrent                
Gross amounts recognized $51
 $10
 $21
 $10
 $11
 $1
 $
 $
Gross amounts offset (2) (1) (1) (1) 
 
 
 
Net amounts presented in Other Noncurrent Assets: Other $49
 $9
 $20
 $9
 $11
 $1
 $
 $
60


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Derivative Liabilities December 31, 2016
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $52
 $
 $12
 $
 $12
 $1
 $2
 $35
Gross amounts offset (11) 
 (11) 
 (11) 
 
 
Net amounts presented in Current Liabilities: Other $41
 $
 $1
 $
 $1
 $1
 $2
 $35
Noncurrent                
Gross amounts recognized $200
 $16
 $13
 $7
 $
 $5
 $
 $152
Gross amounts offset (2) (1) (1) (1) 
 
 
 
Net amounts presented in Other Noncurrent Liabilities: Other $198
 $15
 $12
 $6
 $
 $5
 $
 $152
OBJECTIVE CREDIT CONTINGENT FEATURES
Certain derivative contracts contain objective credit contingent features. These features include the requirement to post cash collateral or letters of credit if specific events occur, such as a credit rating downgrade below investment grade. The following tables show information with respect to derivative contracts that are in a net liability position and contain objective credit-risk-related payment provisions.
 September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Aggregate fair value of derivatives in a net liability position$40
 $25
 $15
 $6
 $9
Fair value of collateral already posted
 
 
 
 
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered40
 25
 15
 6
 9
 December 31, 2016
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Aggregate fair value of derivatives in a net liability position$34
 $16
 $18
 $6
 $12
Fair value of collateral already posted
 
 
 
 
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered34
 16
 18
 6
 12
The Duke Energy Registrants have elected to offset cash collateral and fair values of derivatives. For amounts to be netted, the derivative and cash collateral must be executed with the same counterparty under the same master netting arrangement.
FINANCIAL STATEMENTSDERIVATIVES AND HEDGING

11.
Derivative LiabilitiesMarch 31, 2022
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Current
Gross amounts recognized$115 $36 $ $ $ $1 $ $24 
Gross amounts offset        
Net amounts presented in Current Liabilities: Other$115 $36 $ $ $ $1 $ $24 
Noncurrent
Gross amounts recognized$318 $1 $ $ $ $2 $ $149 
Gross amounts offset        
Net amounts presented in Other Noncurrent Liabilities: Other$318 $1 $ $ $ $2 $ $149 
Derivative AssetsDecember 31, 2021
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Current
Gross amounts recognized$204 $99 $74 $74 $— $$23 $
Gross amounts offset(25)(16)(9)(9)— — — — 
Net amounts presented in Current Assets: Other$179 $83 $65 $65 $— $$23 $
Noncurrent
Gross amounts recognized$116 $63 $50 $50 $— $— $— $— 
Gross amounts offset(23)(15)(8)(8)— — — — 
Net amounts presented in Other Noncurrent Assets: Other$93 $48 $42 $42 $— $— $— $— 
Derivative LiabilitiesDecember 31, 2021
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Current
Gross amounts recognized$184 $26 $19 $$14 $$13 $21 
Gross amounts offset(11)(6)(5)(5)— — — — 
Net amounts presented in Current Liabilities: Other$173 $20 $14 $— $14 $$13 $21 
Noncurrent
Gross amounts recognized$288 $$$$— $$14 $118 
Gross amounts offset(12)(8)(5)(5)— — — — 
Net amounts presented in Other Noncurrent Liabilities: Other$276 $$— $— $— $$14 $118 
9.INVESTMENTS IN DEBT AND EQUITY SECURITIES
The Duke Energy Registrants classify theirEnergy’s investments in debt and equity securities as either trading or available-for-sale.
TRADING SECURITIES
Piedmont's investments in debt and equity securities held in rabbi trusts associated with certain deferred compensation plans are classified as trading securities. The fair value of these investments was $1 million and $5 million as of September 30, 2017, and December 31, 2016, respectively.
AVAILABLE-FOR-SALE (AFS) SECURITIES
All other investments in debt and equity securities are classified as AFS.
Duke Energy’s available-for-sale securities are primarily comprised of investments held in (i) the nuclear decommissioning trust fund (NDTF)NDTF at Duke Energy Carolinas, Duke Energy Progress and Duke Energy Florida, (ii) the grantor trusts at Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana related to Other Post-Retirement Benefit Obligations (OPEB)OPEB plans and (iii) Bison. The Duke Energy Registrants classify investments in debt securities as AFS and investments in equity securities as fair value through net income (FV-NI).
For investments in debt securities classified as AFS, the unrealized gains and losses are included in other comprehensive income until realized, at which time they are reported through net income. For investments in equity securities classified as FV-NI, both realized and unrealized gains and losses are reported through net income. Substantially all of Duke Energy’s investments in debt and equity securities qualify for regulatory accounting, and accordingly, all associated realized and unrealized gains and losses on these investments are deferred as a regulatory asset or liability.
Duke Energy classifies all otherthe majority of investments in debt and equity securities as long term, unless otherwise noted.

61

FINANCIAL STATEMENTSINVESTMENTS IN DEBT AND EQUITY SECURITIES
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






Investment Trusts
The investments within the NDTF investments and the Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana grantor trusts (Investment Trusts)Investment Trusts are managed by independent investment managers with discretion to buy, sell and invest pursuant to the objectives set forth by the investment manager agreements and trust agreements. The Duke Energy Registrants have limited oversight of the day-to-day management of these investments. As a result, the ability to hold investments in unrealized loss positions is outside the control of the Duke Energy Registrants. Accordingly, all unrealized losses associated with debt and equity securities within the Investment Trusts are considered other-than-temporary impairments (OTTIs) and are recognized immediately.
Investments within the Investment Trusts generally qualify for regulatory accounting, and accordingly realized and unrealized gains and losses are deferred as a regulatory asset or liability.
Substantially all amounts of the Duke Energy Registrants' gross unrealized holding losses as of September 30, 2017, and December 31, 2016, are considered OTTIs on investments within Investment Trusts that have been recognized immediately as aand deferred to regulatory asset.accounts where appropriate.
Other AFS Securities
Unrealized gains and losses on all other AFS securities are included in other comprehensive income until realized, unless it is determined the carrying value of an investment is other-than-temporarily impaired.has a credit loss. The Duke Energy Registrants analyze all investment holdings each reporting period to determine whether a decline in fair value should be considered other-than-temporary.is related to a credit loss. If an OTTIa credit loss exists, the unrealized credit loss is included in earnings. There were no material credit losses as of September 30, 2017,March 31, 2022, and December 31, 2016.2021.
Other Investments amounts are recorded in Other within Other Noncurrent Assets on the Condensed Consolidated Balance Sheets.
DUKE ENERGY
The following table presents the estimated fair value of investments in AFS securities.
debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
September 30, 2017 December 31, 2016March 31, 2022December 31, 2021
Gross
 Gross
   Gross
 Gross
  GrossGrossGrossGross
Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
UnrealizedUnrealizedEstimatedUnrealizedUnrealizedEstimated
Holding
 Holding
 Fair
 Holding
 Holding
 Fair
HoldingHoldingFairHoldingHoldingFair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
(in millions)GainsLossesValueGainsLossesValue
NDTF           NDTF
Cash and cash equivalents$
 $
 $129
 $
 $
 $111
Cash and cash equivalents$ $ $128 $— $— $160 
Equity securities2,549
 28
 4,627
 2,092
 54
 4,106
Equity securities4,486 62 6,853 4,905 43 7,350 
Corporate debt securities16
 2
 600
 10
 8
 528
Corporate debt securities9 43 786 39 829 
Municipal bonds5
 2
 334
 3
 10
 331
Municipal bonds2 16 321 14 314 
U.S. government bonds10
 4
 984
 10
 8
 984
U.S. government bonds10 57 1,561 31 12 1,568 
Other debt securities
 1
 120
 
 3
 124
Other debt securities 7 177 180 
Total NDTF$2,580
 $37
 $6,794
 $2,115
 $83
 $6,184
Total NDTF InvestmentsTotal NDTF Investments$4,507 $185 $9,826 $4,992 $63 $10,401 
Other Investments           Other Investments
Cash and cash equivalents$
 $
 $15
 $
 $
 $25
Cash and cash equivalents$ $ $110 $— $— $36 
Equity securities52
 
 115
 38
 
 104
Equity securities31 4 147 36 — 156 
Corporate debt securities1
 
 64
 1
 1
 66
Corporate debt securities 7 124 119 
Municipal bonds3
 1
 83
 2
 1
 82
Municipal bonds1 2 83 80 
U.S. government bonds
 
 44
 
 1
 51
U.S. government bonds 2 45 — — 56 
Other debt securities
 
 37
 
 2
 42
Other debt securities 2 36 — 45 
Total Other Investments$56
 $1
 $358
 $41
 $5
 $370
Total Other Investments$32 $17 $545 $41 $$492 
Total Investments$2,636
 $38
 $7,152
 $2,156
 $88
 $6,554
Total Investments$4,539 $202 $10,371 $5,033 $66 $10,893 
The table below summarizes the maturity date for debt securities.
(in millions)September 30, 2017
Due in one year or less$92
Due after one through five years584
Due after five through 10 years514
Due after 10 years1,076
Total$2,266

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three months ended March 31, 2022, and 2021, were as follows.
Three Months Ended
(in millions)March 31, 2022March 31, 2021
FV-NI:
 Realized gains$111 $140 
 Realized losses85 23 
AFS:
 Realized gains4 18 
 Realized losses23 13 
62

 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Realized gains$37
 $82
 $170
 $200
Realized losses25
 42
 124
 134
FINANCIAL STATEMENTSINVESTMENTS IN DEBT AND EQUITY SECURITIES

DUKE ENERGY CAROLINAS
The following table presents the estimated fair value of investments in AFS securities.
debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
September 30, 2017 December 31, 2016March 31, 2022December 31, 2021
Gross
 Gross
   Gross
 Gross
  GrossGrossGrossGross
Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
UnrealizedUnrealizedEstimatedUnrealizedUnrealizedEstimated
Holding
 Holding
 Fair
 Holding
 Holding
 Fair
HoldingHoldingFairHoldingHoldingFair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
(in millions)GainsLossesValueGainsLossesValue
NDTF           NDTF
Cash and cash equivalents$
 $
 $34
 $
 $
 $18
Cash and cash equivalents$ $ $60 $— $— $53 
Equity securities1,395
 14
 2,553
 1,157
 28
 2,245
Equity securities2,632 30 3,962 2,887 19 4,265 
Corporate debt securities9
 2
 395
 5
 6
 354
Corporate debt securities6 30 503 24 506 
Municipal bonds1
 
 52
 1
 2
 67
Municipal bonds 5 52 — 48 
U.S. government bonds3
 3
 466
 2
 5
 458
U.S. government bonds4 21 692 16 712 
Other debt securities
 1
 113
 
 3
 116
Other debt securities 7 172 175 
Total NDTF$1,408
 $20

$3,613
 $1,165
 $44
 $3,258
Other Investments           
Other debt securities
 
 
 
 1
 3
Total Investments$1,408
 $20
 $3,613
 $1,165
 $45
 $3,261
Total NDTF InvestmentsTotal NDTF Investments$2,642 $93 $5,441 $2,932 $27 $5,759 
The table below summarizes the maturity date for debt securities.
(in millions)September 30, 2017
Due in one year or less$5
Due after one through five years218
Due after five through 10 years264
Due after 10 years539
Total$1,026
Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three months ended March 31, 2022, and 2021, were as follows.
Three Months Ended Nine Months Ended
September 30, September 30,Three Months Ended
(in millions)2017
 2016
 2017
 2016
(in millions)March 31, 2022March 31, 2021
FV-NI:FV-NI:
Realized gains$20
 $58
 $110
 $125
Realized gains$75 $128 
Realized losses13
 28
 76
 84
Realized losses49 16 
AFS:AFS:
Realized gains Realized gains3 13 
Realized losses Realized losses16 

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





PROGRESS ENERGY
The following table presents the estimated fair value of investments in AFS securities.debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
March 31, 2022December 31, 2021
GrossGrossGrossGross
UnrealizedUnrealizedEstimatedUnrealizedUnrealizedEstimated
HoldingHoldingFairHoldingHoldingFair
(in millions)GainsLossesValueGainsLossesValue
NDTF
Cash and cash equivalents$ $ $68 $— $— $107 
Equity securities1,854 32 2,891 2,018 24 3,085 
Corporate debt securities3 13 283 15 323 
Municipal bonds2 11 269 12 266 
U.S. government bonds6 36 869 15 856 
Other debt securities  5 — — 
Total NDTF Investments$1,865 $92 $4,385 $2,060 $36 $4,642 
Other Investments
Cash and cash equivalents$ $ $17 $— $— $20 
Municipal bonds1  26 — 26 
Total Other Investments$1 $ $43 $$— $46 
Total Investments$1,866 $92 $4,428 $2,062 $36 $4,688 
63

FINANCIAL STATEMENTSINVESTMENTS IN DEBT AND EQUITY SECURITIES

 September 30, 2017 December 31, 2016
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $95
 $
 $
 $93
Equity securities1,154
 14
 2,074
 935
 26
 1,861
Corporate debt securities7
 
 205
 5
 2
 174
Municipal bonds4
 2
 282
 2
 8
 264
U.S. government bonds7
 1
 518
 8
 3
 526
Other debt securities
 
 7
 
 
 8
Total NDTF$1,172
 $17
 $3,181
 $950
 $39
 $2,926
Other Investments           
Cash and cash equivalents$
 $
 $11
 $
 $
 $21
Municipal bonds3
 
 47
 2
 
 44
Total Other Investments$3
 $
 $58
 $2
 $
 $65
Total Investments$1,175
 $17
 $3,239
 $952
 $39
 $2,991
The table below summarizes the maturity date for debt securities.
(in millions)September 30, 2017
Due in one year or less$74
Due after one through five years309
Due after five through 10 years194
Due after 10 years482
Total$1,059
Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three months ended March 31, 2022, and 2021, were as follows.
Three Months Ended Nine Months Ended
September 30, September 30,Three Months Ended
(in millions)2017
 2016
 2017
 2016
(in millions)March 31, 2022March 31, 2021
FV-NI:FV-NI:
Realized gains$16
 $21
 $58
 $71
Realized gains$36 $12 
Realized losses12
 13
 47
 49
Realized losses36 
AFS:AFS:
Realized gains Realized gains1 
Realized losses Realized losses6 

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





DUKE ENERGY PROGRESS
The following table presents the estimated fair value of investments in AFS securities.
debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
September 30, 2017 December 31, 2016March 31, 2022December 31, 2021
Gross
 Gross
   Gross
 Gross
  GrossGrossGrossGross
Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
UnrealizedUnrealizedEstimatedUnrealizedUnrealizedEstimated
Holding
 Holding
 Fair
 Holding
 Holding
 Fair
HoldingHoldingFairHoldingHoldingFair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
(in millions)GainsLossesValueGainsLossesValue
NDTF           NDTF
Cash and cash equivalents$
 $
 $46
 $
 $
 $45
Cash and cash equivalents$ $ $58 $— $— $94 
Equity securities882
 11
 1,683
 704
 21
 1,505
Equity securities1,757 32 2,782 1,915 23 2,970 
Corporate debt securities5
 
 144
 4
 1
 120
Corporate debt securities3 12 255 15 282 
Municipal bonds4
 2
 281
 2
 8
 263
Municipal bonds2 11 269 12 266 
U.S. government bonds5
 1
 303
 5
 2
 275
U.S. government bonds6 19 502 15 472 
Other debt securities
 
 4
 
 
 5
Other debt securities  5 — — 
Total NDTF$896
 $14
 $2,461
 $715
 $32
 $2,213
Total NDTF InvestmentsTotal NDTF Investments$1,768 $74 $3,871 $1,957 $29 $4,089 
Other Investments           Other Investments
Cash and cash equivalents$
 $
 $1
 $
 $
 $1
Cash and cash equivalents$ $ $14 $— $— $16 
Total Other InvestmentsTotal Other Investments$ $ $14 $— $— $16 
Total Investments$896
 $14
 $2,462
 $715
 $32
 $2,214
Total Investments$1,768 $74 $3,885 $1,957 $29 $4,105 
The table below summarizes the maturity date for debt securities.
(in millions)September 30, 2017
Due in one year or less$16
Due after one through five years209
Due after five through 10 years136
Due after 10 years371
Total$732
Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three months ended March 31, 2022, and 2021, were as follows.
Three Months Ended Nine Months Ended
September 30, September 30,Three Months Ended
(in millions)2017
 2016
 2017
 2016
(in millions)March 31, 2022March 31, 2021
FV-NI:FV-NI:
Realized gains$14
 $18
 $49
 $60
Realized gains$36 $12 
Realized losses11
 11
 41
 42
Realized losses35 
AFS:AFS:
Realized gains Realized gains1 
Realized losses Realized losses5 

64

FINANCIAL STATEMENTSINVESTMENTS IN DEBT AND EQUITY SECURITIES
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






DUKE ENERGY FLORIDA
The following table presents the estimated fair value of investments in AFS securities.
debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
September 30, 2017 December 31, 2016March 31, 2022December 31, 2021
Gross
 Gross
   Gross
 Gross
  GrossGrossGrossGross
Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
UnrealizedUnrealizedEstimatedUnrealizedUnrealizedEstimated
Holding
 Holding
 Fair
 Holding
 Holding
 Fair
HoldingHoldingFairHoldingHoldingFair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
(in millions)GainsLossesValueGainsLossesValue
NDTF           NDTF
Cash and cash equivalents$
 $
 $49
 $
 $
 $48
Cash and cash equivalents$ $ $10 $— $— $13 
Equity securities272
 3
 391
 231
 5
 356
Equity securities97  109 103 115 
Corporate debt securities2
 
 61
 1
 1
 54
Corporate debt securities 1 28 — — 41 
Municipal bonds
 
 1
 
 
 1
U.S. government bonds2
 
 215
 3
 1
 251
U.S. government bonds 17 367 — 384 
Other debt securities
 
 3
 
 
 3
Total NDTF(a)
$276
 $3
 $720
 $235
 $7
 $713
Total NDTF Investments(a)
Total NDTF Investments(a)
$97 $18 $514 $103 $$553 
Other Investments           Other Investments
Cash and cash equivalents$
 $
 $
 $
 $
 $4
Cash and cash equivalents$ $ $2 $— $— $
Municipal bonds3
 
 47
 2
 
 44
Municipal bonds1  26 — 26 
Total Other Investments$3
 $
 $47
 $2
 $
 $48
Total Other Investments$1 $ $28 $$— $29 
Total Investments$279
 $3
 $767
 $237
 $7
 $761
Total Investments$98 $18 $542 $105 $$582 
(a)
(a)During the nine months ended September 30, 2017, Duke Energy Florida continued to receive reimbursements from the NDTF for costs related to ongoing decommissioning activity of the Crystal River Unit 3 nuclear plant.
The table below summarizes the maturity datethree months ended March 31, 2022, and the year ended December 31, 2021, Duke Energy Florida received reimbursements from the NDTF for debt securities.
(in millions)September 30, 2017
Due in one year or less$58
Due after one through five years100
Due after five through 10 years58
Due after 10 years111
Total$327
Realized gains and losses, which were determined on a specific identification basis, from salescosts related to ongoing decommissioning activity of AFS securities were as follows.
 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Realized gains$2
 $3
 $9
 $11
Realized losses1
 2
 6
 7

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





DUKE ENERGY INDIANA
The following table presents the estimated fair value of investments in AFS securities.
 September 30, 2017 December 31, 2016
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
Investments           
Equity securities$44
 $
 $91
 $33
 $
 $79
Corporate debt securities
 
 3
 
 
 2
Municipal bonds
 1
 28
 
 1
 28
U.S. government bonds
 
 
 
 
 1
Total Investments$44
 $1
 $122
 $33
 $1
 $110
The table below summarizes the maturity date for debt securities.
(in millions)September 30, 2017
Due in one year or less$4
Due after one through five years12
Due after five through 10 years8
Due after 10 years7
Total$31
Crystal River Unit 3.
Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities were insignificant for the three and nine months ended September 30, 2017,March 31, 2022, and 2016.2021, were immaterial.
12.DUKE ENERGY INDIANA
The following table presents the estimated fair value of investments in debt and equity securities; equity investments are measured at FV-NI and debt investments are classified as AFS.
March 31, 2022December 31, 2021
GrossGrossGrossGross
UnrealizedUnrealizedEstimatedUnrealizedUnrealizedEstimated
HoldingHoldingFairHoldingHoldingFair
(in millions)GainsLossesValueGainsLossesValue
Investments
Cash and cash equivalents$ $ $1 $— $— $— 
Equity securities4 4 91 — 97 
Corporate debt securities  8 — — 
Municipal bonds 2 49 46 
U.S. government bonds  6 — — 12 
Total Investments$4 $6 $155 $$$161 
Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three months ended March 31, 2022, and 2021, were immaterial.
DEBT SECURITY MATURITIES
The table below summarizes the maturity date for debt securities.
March 31, 2022
DukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaIndiana
Due in one year or less$162 $7 $139 $32 $107 $8 
Due after one through five years969 367 528 270 258 24 
Due after five through 10 years536 235 228 212 16 6 
Due after 10 years1,466 810 557 517 40 25 
Total$3,133 $1,419 $1,452 $1,031 $421 $63 
65

FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS
10. FAIR VALUE MEASUREMENTS
Fair value is the exchange price to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. The fair value definition focuses on an exit price versus the acquisition cost. Fair value measurements use market data or assumptions market participants would use in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs may be readily observable, corroborated by market data or generally unobservable. Valuation techniques maximize the use of observable inputs and minimize use of unobservable inputs. A midmarket pricing convention (the midpoint price between bid and ask prices) is permitted for use as a practical expedient.
Fair value measurements are classified in three levels based on the fair value hierarchy:
Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date. An active market is one in which transactions for an asset or liability occur with sufficient frequency and volume to provide ongoing pricing information.
Level 2 – A fair value measurement utilizing inputs other than quoted prices included in Level 1 that are observable, either directly or indirectly, for an asset or liability. Inputs include (i) quoted prices for similar assets or liabilities in active markets, (ii) quoted prices for identical or similar assets or liabilities in markets that are not active (iii) and inputs other than quoted market prices that are observable for the asset or liability, suchhierarchy as interest rate curves and yield curves observable at commonly quoted intervals, volatilities and credit spreads. A Level 2 measurement cannot have more than an insignificant portion of its valuation based on unobservable inputs. Instruments in this category include non-exchange-traded derivatives, such as over-the-counter forwards, swaps and options; certain marketable debt securities; and financial instruments traded in less-than-active markets.
Level 3 – Any fair value measurement that includes unobservable inputs for more than an insignificant portion of the valuation. These inputs may be used with internally developed methodologies that result in management’s best estimate of fair value. Level 3 measurements may include longer-term instruments that extend into periods in which observable inputs are not available.
Not Categorizeddefined by GAAP. Certain investments are not categorized within the Fair Valuefair value hierarchy. These investments are measured at fair value using the net asset value (NAV) per share practical expedient. The NAV is derived based on the fair valueinvestment cost, less any impairment, plus or minus changes resulting from observable price changes for an identical or similar investment of the underlying investments but may not be readily redeemable at that fair value.same issuer.
Fair value accounting guidance permits entities to elect to measure certain financial instruments that are not required to be accounted for at fair value, such as equity method investments or the company’s own debt, at fair value. The Duke Energy Registrants have not elected to record any of these items at fair value.
Transfers between levels represent assets or liabilities that were previously (i) categorized at a higher level for which the inputs to the estimate became less observable or (ii) classified at a lower level for which the inputs became more observable during the period. The Duke Energy Registrant’s policy is to recognize transfers between levels of the fair value hierarchy at the end of the period. There were no transfers between levels during the three and nine months ended September 30, 2017, and 2016.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Valuation methods of the primary fair value measurements disclosed below are as follows.
Investments in equity securities
The majority of investments in equity securities are valued using Level 1 measurements. Investments in equity securities are typically valued at the closing price in the principal active market as of the last business day of the quarter. Principal active markets for equity prices include published exchanges such as the New York Stock Exchange (NYSE) and Nasdaq Stock Market. Foreign equity prices are translated from their trading currency using the currency exchange rate in effect at the close of the principal active market. There was no after-hours market activity that was required to be reflected in the reported fair value measurements.
Investments in debt securities
Most investments in debt securities are valued using Level 2 measurements because the valuations use interest rate curves and credit spreads applied to the terms of the debt instrument (maturity and coupon interest rate) and consider the counterparty credit rating. If the market for a particular fixed-income security is relatively inactive or illiquid, the measurement is Level 3.
Commodity derivatives
Commodity derivatives with clearinghouses are classified as Level 1. Other commodityCommodity derivatives including Piedmont's natural gas supply contracts,with observable forward curves are primarily valued using internally developed discounted cash flow models that incorporate forward price, adjustments for liquidity (bid-ask spread) and credit or non-performance risk (after reflecting credit enhancements suchclassified as collateral), and are discounted to present value. Pricing inputs are derived from published exchange transaction prices and other observable data sources. In the absence of an active market, the last available price may be used.Level 2. If forward price curves are not observable for the full term of the contract and the unobservable period had more than an insignificant impact on the valuation, the commodity derivative is classified as Level 3. In isolation, increases (decreases) in natural gas forward prices result in favorable (unfavorable) fair value adjustments for natural gas purchase contracts; and increases (decreases) in electricity forward prices result in unfavorable (favorable) fair value adjustments for electricity sales contracts. Duke Energy regularly evaluates and validates pricing inputs used to estimate the fair value of natural gas commodity contracts by a market participant price verification procedure. This procedure provides a comparison of internal forward commodity curves to market participant generated curves.
Interest rate derivatives
Most over-the-counter interest rate contract derivatives are valued using financial models that utilize observable inputs for similar instruments and are classified as Level 2. Inputs include forward interest rate curves, notional amounts, interest rates and credit quality of the counterparties.
Other fair value considerations
See Note 2 related to the acquisition of Piedmont in 2016. See Note 11 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016,2021, for a discussion of the valuation of goodwill and intangible assets.
66

FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS
DUKE ENERGY
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets. Derivative amounts in the tables below for all Duke Energy Registrants exclude cash collateral, which is disclosed in Note 10.8. See Note 119 for additional information related to investments by major security type for the Duke Energy Registrants.
March 31, 2022
(in millions)Total Fair ValueLevel 1Level 2Level 3Not Categorized
NDTF cash and cash equivalents$128 $128 $ $ $ 
NDTF equity securities6,853 6,806   47 
NDTF debt securities2,845 947 1,898   
Other equity securities147 147    
Other debt securities288 39 249   
Other cash and cash equivalents110 110    
Derivative assets1,108 27 1,071 10  
Total assets11,479 8,204 3,218 10 47 
Derivative liabilities(433) (224)(209) 
Net assets (liabilities)$11,046 $8,204 $2,994 $(199)$47 
December 31, 2021
(in millions)Total Fair ValueLevel 1Level 2Level 3Not Categorized
NDTF cash and cash equivalents$160 $160 $— $— $— 
NDTF equity securities7,350 7,300 — — 50 
NDTF debt securities2,891 967 1,924 — — 
Other equity securities156 156 — — — 
Other debt securities300 45 255 — — 
Other cash and cash equivalents36 36 — — — 
Derivative assets320 293 24 — 
Total assets11,213 8,667 2,472 24 50 
Derivative liabilities(472)(13)(314)(145)— 
Net assets (liabilities)$10,741 $8,654 $2,158 $(121)$50 
 September 30, 2017
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Not Categorized
NDTF equity securities$4,627
$4,549
$
$
$78
NDTF debt securities2,167
617
1,550


Other trading and AFS equity securities116
116



Other AFS debt securities243
59
184


Derivative assets69
4
35
30

Total assets7,222
5,345
1,769
30
78
Derivative liabilities(191)
(68)(123)
Net assets (liabilities)$7,031
$5,345
$1,701
$(93)$78

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





 December 31, 2016
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Not Categorized
NDTF equity securities$4,106
$4,029
$
$
$77
NDTF debt securities2,078
632
1,446


Other trading and AFS equity securities104
104



Other trading and AFS debt securities266
75
186
5

Derivative assets162
5
136
21

Total assets6,716
4,845
1,768
26
77
Derivative liabilities(252)(2)(63)(187)
Net assets (liabilities)$6,464
$4,843
$1,705
$(161)$77
The following tables provide reconciliations of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements. Amounts included in earnings for derivatives are primarily included in Cost of natural gas on the Duke Energy Registrants' Condensed Consolidated Statements of Operations and Comprehensive Income. Amounts included in changes of net assets on the Duke Energy Registrants' Condensed Consolidated Balance Sheets are included in regulatory assets or liabilities. All derivative assets and liabilities are presented on a net basis.
 Three Months Ended September 30, 2017 Three Months Ended September 30, 2016
(in millions)Investments
 Derivatives (net)
 Total
 Investments
 Derivatives (net)
 Total
Balance at beginning of period$
 $(91) $(91) $4
 $34
 $38
Purchases, sales, issuances and settlements:    

      
Settlements
 (12) (12) 
 (9) (9)
Total gains (losses) included on the Condensed Consolidated Balance Sheet
 10
 10
 
 (2) (2)
Balance at end of period$
 $(93) $(93) $4
 $23
 $27
Derivatives (net)
Nine Months Ended September 30, 2017 Nine Months Ended September 30, 2016Three Months Ended March 31,
(in millions)Investments
 Derivatives (net)
 Total
 Investments
 Derivatives (net)
 Total
(in millions)20222021
Balance at beginning of period$5
 $(166) $(161) $5
 $10
 $15
Balance at beginning of period$(121)$(77)
Total pretax realized or unrealized gains included in comprehensive income1
 
 1
 
 
 
Total pretax realized or unrealized losses included in comprehensive incomeTotal pretax realized or unrealized losses included in comprehensive income(68)(44)
Purchases, sales, issuances and settlements:           Purchases, sales, issuances and settlements:
Purchases
 55
 55
 
 34
 34
Sales(6) 
 (6) (1) 
 (1)
Settlements
 (30) (30) 
 (22) (22)Settlements(3)(7)
Total gains included on the Condensed Consolidated Balance Sheet
 48
 48
 
 1
 1
Total (losses) gains included on the Condensed Consolidated Balance SheetTotal (losses) gains included on the Condensed Consolidated Balance Sheet(7)
Balance at end of period$
 $(93) $(93) $4
 $23
 $27
Balance at end of period$(199)$(126)
67


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS
DUKE ENERGY CAROLINAS
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
 September 30, 2017
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Not Categorized
NDTF equity securities$2,553
$2,475
$
$
$78
NDTF debt securities1,060
178
882


Derivative assets8

8


Total assets3,621
2,653
890

78
Derivative liabilities(25)
(25)

Net assets$3,596
$2,653
$865
$
$78
December 31, 2016March 31, 2022
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Not Categorized
(in millions)Total Fair ValueLevel 1Level 2Not Categorized
NDTF cash and cash equivalentsNDTF cash and cash equivalents$60 $60 $ $ 
NDTF equity securities$2,245
$2,168
$
$
$77
NDTF equity securities3,962 3,915  47 
NDTF debt securities1,013
178
835


NDTF debt securities1,419 349 1,070  
Other AFS debt securities3


3

Derivative assets33

33


Derivative assets493  493  
Total assets3,294
2,346
868
3
77
Total assets5,934 4,324 1,563 47 
Derivative liabilities(16)
(16)

Derivative liabilities(37) (37) 
Net assets$3,278
$2,346
$852
$3
$77
Net assets$5,897 $4,324 $1,526 $47 
The following table provides a reconciliation of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements.
 Investments
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)20172016 20172016
Balance at beginning of period$
$3
 $3
$3
Total pretax realized or unrealized gains included in comprehensive income

 1

Purchases, sales, issuances and settlements:     
Sales

 (4)
Balance at end of period$
$3
 $
$3
December 31, 2021
(in millions)Total Fair ValueLevel 1Level 2Not Categorized
NDTF cash and cash equivalents$53 $53 $— $— 
NDTF equity securities4,265 4,215 — 50 
NDTF debt securities1,441 339 1,102 — 
Derivative assets162 — 162 — 
Total assets5,921 4,607 1,264 50 
Derivative liabilities(35)— (35)— 
Net assets$5,886 $4,607 $1,229 $50 
PROGRESS ENERGY
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
 September 30, 2017 December 31, 2016
(in millions)Total Fair Value
Level 1
Level 2
 Total Fair Value
Level 1
Level 2
NDTF equity securities$2,074
$2,074
$
 $1,861
$1,861
$
NDTF debt securities1,107
439
668
 1,065
454
611
Other AFS debt securities58
11
47
 65
21
44
Derivative assets15
1
14
 85

85
Total assets3,254
2,525
729
 3,076
2,336
740
Derivative liabilities(22)
(22) (25)
(25)
Net assets$3,232
$2,525
$707
 $3,051
$2,336
$715

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





March 31, 2022December 31, 2021
(in millions)Total Fair ValueLevel 1Level 2Total Fair ValueLevel 1Level 2
NDTF cash and cash equivalents$68 $68 $ $107 $107 $— 
NDTF equity securities2,891 2,891  3,085 3,085 — 
NDTF debt securities1,426 598 828 1,450 628 822 
Other debt securities26  26 26 — 26 
Other cash and cash equivalents17 17  20 20 — 
Derivative assets425 2 423 124 — 124 
Total assets4,853 3,576 1,277 4,812 3,840 972 
Derivative liabilities   (24)— (24)
Net assets$4,853 $3,576 $1,277 $4,788 $3,840 $948 
DUKE ENERGY PROGRESS
The following table providestables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
March 31, 2022December 31, 2021
(in millions)Total Fair ValueLevel 1Level 2Total Fair ValueLevel 1Level 2
NDTF cash and cash equivalents$58 $58 $ $94 $94 $— 
NDTF equity securities2,782 2,782  2,970 2,970 — 
NDTF debt securities1,031 279 752 1,025 289 736 
Other cash and cash equivalents14 14  16 16 — 
Derivative assets385 2 383 124 — 124 
Total assets4,270 3,135 1,135 4,229 3,369 860 
Derivative liabilities   (10)— (10)
Net assets$4,270 $3,135 $1,135 $4,219 $3,369 $850 
68

 September 30, 2017 December 31, 2016
(in millions)Total Fair Value
Level 1
Level 2
 Total Fair Value
Level 1
Level 2
NDTF equity securities$1,683
$1,683
$
 $1,505
$1,505
$
NDTF debt securities778
231
547
 708
207
501
Other AFS debt securities1
1

 1
1

Derivative assets8
1
7
 46

46
Total assets2,470
1,916
554
 2,260
1,713
547
Derivative liabilities(7)
(7) (7)
(7)
Net assets$2,463
$1,916
$547
 $2,253
$1,713
$540
FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS
DUKE ENERGY FLORIDA
The following table providestables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
September 30, 2017 December 31, 2016March 31, 2022December 31, 2021
(in millions)Total Fair Value
Level 1
Level 2
 Total Fair Value
Level 1
Level 2
(in millions)Total Fair ValueLevel 1Level 2Total Fair ValueLevel 1Level 2
NDTF cash and cash equivalentsNDTF cash and cash equivalents$10 $10 $ $13 $13 $— 
NDTF equity securities$391
$391
$
 $356
$356
$
NDTF equity securities109 109  115 115 — 
NDTF debt securities329
208
121
 357
247
110
NDTF debt securities395 319 76 425 339 86 
Other AFS debt securities47

47
 48
4
44
Other debt securitiesOther debt securities26  26 26 — 26 
Other cash and cash equivalentsOther cash and cash equivalents2 2  — 
Derivative assets6

6
 39

39
Derivative assets40  40 — — — 
Total assets773
599
174
 800
607
193
Total assets582 440 142 582 470 112 
Derivative liabilities(9)
(9) (12)
(12)Derivative liabilities   (14)— (14)
Net assets$764
$599
$165
 $788
$607
$181
Net assets$582 $440 $142 $568 $470 $98 
DUKE ENERGY OHIO
The following table provides recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
Sheets were not material at March 31, 2022, and December 31, 2021.
 September 30, 2017 December 31, 2016
(in millions)Total Fair Value
Level 2
Level 3
 Total Fair Value
Level 2
Level 3
Derivative assets$2
$
$2
 $5
$
$5
Derivative liabilities(5)(5)
 (6)(6)
Net (liabilities) assets$(3)$(5)$2
 $(1)$(6)$5
DUKE ENERGY INDIANA
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
March 31, 2022December 31, 2021
(in millions)Total Fair ValueLevel 1Level 2Level 3Total Fair ValueLevel 1Level 2Level 3
Other equity securities$91 $91 $ $ $97 $97 $— $— 
Other debt securities63  63  64 — 64 — 
Other cash and cash equivalents1 1   — — — — 
Derivative assets45 18 17 10 23 — 22 
Total assets200 110 80 10 184 98 64 22 
Derivative liabilities    (27)(13)(14)— 
Net assets$200 $110 $80 $10 $157 $85 $50 $22 
The following table provides a reconciliation of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements.
Derivatives (net)Derivatives (net)
Three Months Ended September 30, Nine Months Ended September 30,Three Months Ended March 31,
(in millions)2017
 2016
 2017
 2016
(in millions)20222021
Balance at beginning of period$3
 $5
 $5
 $3
Balance at beginning of period$22 $
Purchases, sales, issuances and settlements:       Purchases, sales, issuances and settlements:
Purchases
 
 3
 5
Settlements(1) (2) (3) (4)Settlements(6)(6)
Total losses included on the Condensed Consolidated Balance Sheet
 
 (3) (1)
Total (losses) gains included on the Condensed Consolidated Balance SheetTotal (losses) gains included on the Condensed Consolidated Balance Sheet(6)
Balance at end of period$2
 $3
 $2
 $3
Balance at end of period$10 $

PIEDMONT
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





DUKE ENERGY INDIANA
The following table providestables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
March 31, 2022December 31, 2021
(in millions)Total Fair ValueLevel 1Level 2Total Fair ValueLevel 1Level 2
Derivative assets$7 $7 $ $$$— 
Derivative liabilities(173) (173)(139)— (139)
Net (liabilities) assets$(166)$7 $(173)$(136)$$(139)
69

 September 30, 2017 December 31, 2016
(in millions)Total Fair Value
Level 1
Level 2
Level 3
 Total Fair Value
Level 1
Level 2
Level 3
Other AFS equity securities$91
$91
$
$
 $79
$79
$
$
Other AFS debt securities31

31

 31

31

Derivative assets28


28
 16


16
Total assets150
91
31
28
 126
79
31
16
Derivative liabilities



 (2)(2)

Net assets$150
$91
$31
$28
 $124
$77
$31
$16
FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS
The following table provides a reconciliation of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements.
 Derivatives (net)
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 2017
 2016
Balance at beginning of period$51
 $29
 $16
 $7
Purchases, sales, issuances and settlements:
      
Purchases
 
 52
 29
Settlements(11) (7) (27) (18)
Total (losses) gains included on the Condensed Consolidated Balance Sheet(12) (2) (13) 2
Balance at end of period$28
 $20
 $28
 $20
PIEDMONT
The following table provides recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
 September 30, 2017 December 31, 2016
(in millions)Total Fair Value
Level 1
Level 3
 Total Fair Value
Level 1
Level 3
Other trading equity securities$1
$1
$
 $4
$4
$
Other trading debt securities


 1
1

Derivative assets2
2

 3
3

Total assets3
3

 8
8

Derivative liabilities(123)
(123) (187)
(187)
Net (liabilities) assets$(120)$3
$(123) $(179)$8
$(187)
The following table provides a reconciliation of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements.
 Derivatives (net)
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 2017
 2016
Balance at beginning of period$(145) $(190) $(187) $(149)
Total gains (losses) and settlements22
 (5) 64
 (46)
Balance at end of period$(123) $(195) $(123) $(195)

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





QUANTITATIVE INFORMATION ABOUT UNOBSERVABLE INPUTS
The following tables include quantitative information about the Duke Energy Registrants' derivatives classified as Level 3.
 September 30, 2017
 Fair Value     
Investment Type(in millions)Valuation TechniqueUnobservable InputRange
Duke Energy Ohio 
     
Financial Transmission Rights (FTRs)$2
RTO auction pricingFTR price – per megawatt-hour (MWh)$
-$1.08
Duke Energy Indiana 
     
FTRs28
RTO auction pricingFTR price – per MWh(0.82)-6.19
Piedmont      
Natural gas contracts(123)Discounted cash flowForward natural gas curves – price per million British thermal unit (MMBtu)2.12
-3.36
Duke Energy      
Total Level 3 derivatives$(93)     
March 31, 2022
December 31, 2016Weighted
Fair Value    Fair ValueAverage
Investment Type(in millions)Valuation TechniqueUnobservable InputRangeInvestment Type(in millions)Valuation TechniqueUnobservable InputRangeRange
Duke EnergyDuke Energy  
Electricity contractsElectricity contracts$(210)RTO forward pricingForward electricity curves – price per MWh$20.33 -$187.82 $46.51 
Duke Energy Ohio 
    Duke Energy Ohio 
FTRs$5
RTO auction pricingFTR price – per MWh$0.77
-$3.52
FTRs1 RTO auction pricingFTR price – per MWh0.16 -1.26 0.63 
Duke Energy Indiana 
    Duke Energy Indiana 
FTRs16
RTO auction pricingFTR price – per MWh(0.83)-9.32
FTRs10 RTO auction pricingFTR price – per MWh(0.46)-17.24 2.32 
Piedmont     
Natural gas contracts(187)Discounted cash flowForward natural gas curves – price per MMBtu2.31
-4.18
Duke Energy     Duke Energy
Total Level 3 derivatives$(166)    Total Level 3 derivatives$(199)
December 31, 2021
Weighted
Fair ValueAverage
Investment Type(in millions)Valuation TechniqueUnobservable InputRangeRange
Duke Energy      
Electricity contracts$(145)RTO forward pricingForward electricity curves – price per MWh$19.04 -$139.11$37.57
Duke Energy Ohio   
FTRsRTO auction pricingFTR price – per MWh0.06 -1.79 0.96 
Duke Energy Indiana   
FTRs22 RTO auction pricingFTR price – per MWh(1.18)-13.11 2.68 
Duke Energy
Total Level 3 derivatives$(121)
OTHER FAIR VALUE DISCLOSURES
The fair value and book value of long-term debt, including current maturities, is summarized in the following table. Estimates determined are not necessarily indicative of amounts that could have been settled in current markets. Fair value of long-term debt uses Level 2 measurements.
September 30, 2017 December 31, 2016March 31, 2022December 31, 2021
(in millions)Book Value
 Fair Value
 Book Value
 Fair Value
(in millions)Book ValueFair ValueBook ValueFair Value
Duke Energy$51,414
 $53,985
 $47,895
 $49,161
Duke Energy(a)
Duke Energy(a)
$66,080 $66,633 $63,835 $69,683 
Duke Energy Carolinas9,525
 10,653
 9,603
 10,494
Duke Energy Carolinas14,470 15,117 13,275 15,101 
Progress Energy17,637
 19,615
 17,541
 19,107
Progress Energy21,657 22,669 20,823 23,751 
Duke Energy Progress7,557
 8,075
 7,011
 7,357
Duke Energy Progress11,114 11,260 10,249 11,252 
Duke Energy Florida6,696
 7,475
 6,125
 6,728
Duke Energy Florida8,451 8,911 8,482 9,772 
Duke Energy Ohio2,067
 2,242
 1,884
 2,020
Duke Energy Ohio3,193 3,278 3,193 3,570 
Duke Energy Indiana3,785
 4,407
 3,786
 4,260
Duke Energy Indiana4,270 4,554 4,323 5,067 
Piedmont2,036
 2,193
 1,821
 1,933
Piedmont2,969 2,984 2,968 3,278 
(a)Book value of long-term debt includes $1.2 billion and $1.25 billion at March 31, 2022, and December 31, 2021, respectively, of net unamortized debt discount and premium of purchase accounting adjustments related to the mergers with Progress Energy and Piedmont that are excluded from fair value of long-term debt.
At both September 30, 2017,March 31, 2022, and December 31, 2016,2021, fair value of cash and cash equivalents, accounts and notes receivable, accounts payable, notes payable and commercial paper and nonrecourse notes payable of VIEs are not materially different from their carrying amounts because of the short-term nature of these instruments and/or because the stated rates approximate market rates.
13.11. VARIABLE INTEREST ENTITIES
A VIE is an entity that is evaluated for consolidation using more than a simple analysis of voting control. The analysis to determine whether an entity is a VIE considers contracts with an entity, credit support for an entity, the adequacy of the equity investment of an entity and the relationship of voting power to the amount of equity invested in an entity. This analysis is performed either upon the creation of a legal entity or upon the occurrence of an event requiring re-evaluation, such as a significant change in an entity’s assets or activities. A qualitative analysis of control determines the party that consolidates a VIE. This assessment is based on (i) what party has the power to direct the activities of the VIE that most significantly impact its economic performance and (ii) what party has rights to receive benefits or is obligated to absorb losses that could potentially be significant to the VIE. The analysis of the party that consolidates a VIE is a continual reassessment.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





CONSOLIDATED VIEs
The obligations of the consolidated VIEs discussed in the following paragraphs are nonrecourse to the Duke Energy registrants.Registrants. The registrants have no requirement to provide liquidity to, purchase assets of or guarantee performance of these VIEs unless noted in the following paragraphs.
70

FINANCIAL STATEMENTSVARIABLE INTEREST ENTITIES

No financial support was provided to any of the consolidated VIEs during the ninethree months ended September 30, 2017,March 31, 2022, and the year ended December 31, 2016,2021, or is expected to be provided in the future that was not previously contractually required.
Receivables Financing – DERF / DEPR / DERF/DEPR/DEFR
Duke Energy Receivables Finance Company, LLC (DERF), Duke Energy Progress Receivables, LLC (DEPR)DERF, DEPR and Duke Energy Florida Receivables, LLC (DEFR)DEFR are bankruptcy remote, special purpose subsidiaries of Duke Energy Carolinas, Duke Energy Progress and Duke Energy Florida, respectively. DERF, DEPR and DEFR are wholly owned limited liability companiesLLCs with separate legal existence from their parent companies, and their assets are not generally available to creditors of their parent companies. On a revolving basis, DERF, DEPR and DEFR buy certain accounts receivable arising from the sale of electricity and related services from their parent companies.
DERF, DEPR and DEFR borrow amounts under credit facilities to buy these receivables. Borrowing availability from the credit facilities is limited to the amount of qualified receivables purchased.purchased, which generally exclude receivables past due more than a predetermined number of days and reserves for expected past-due balances. The sole source of funds to satisfy the related debt obligations is cash collections from the receivables. Amounts borrowed under the credit facilities are reflected on the Condensed Consolidated Balance Sheets as Long-Term Debt.
The most significant activity that impacts the economic performance of DERF, DEPR and DEFR are the decisions made to manage delinquent receivables. Duke Energy Carolinas, Duke Energy Progress and Duke Energy Florida are considered the primary beneficiaries and consolidate DERF, DEPR and DEFR, respectively, as they make those decisions.
Receivables Financing – CRC
CRC is a bankruptcy remote, special purpose entity indirectly owned by Duke Energy. On a revolving basis, CRC buys certain accounts receivable arising from the sale of electricity, natural gas and related services from Duke Energy Ohio and Duke Energy Indiana. CRC borrows amounts under a credit facility to buy the receivables from Duke Energy Ohio and Duke Energy Indiana. Borrowing availability from the credit facility is limited to the amount of qualified receivables sold to CRC.CRC, which generally exclude receivables past due more than a predetermined number of days and reserves for expected past-due balances. The sole source of funds to satisfy the related debt obligation is cash collections from the receivables. Amounts borrowed under the credit facility are reflected on Duke Energy's Condensed Consolidated Balance Sheets as Long-Term Debt.
The proceeds Duke Energy Ohio and Duke Energy Indiana receive from the sale of receivables to CRC are typically 75 percentapproximately 75% cash and 25 percent25% in the form of a subordinated note from CRC. The subordinated note is a retained interest in the receivables sold. Depending on collection experience, additional equity infusions to CRC may be required by Duke Energy to maintain a minimum equity balance of $3 million.
CRC is considered a VIE because (i) equity capitalization is insufficient to support its operations, (ii) power to direct the activities that most significantly impact the economic performance of the entity areis not performedheld by the equity holder and (iii) deficiencies in net worth of CRC are funded by Duke Energy. The most significant activities that impact the economic performance of CRC are decisions made to manage delinquent receivables. Duke Energy is considered the primary beneficiary and consolidates CRC as it makes these decisions. Neither Duke Energy Ohio nor Duke Energy Indiana consolidate CRC.
Receivables Financing – Credit Facilities
The following table summarizes the amounts and expiration dates of the credit facilities and associated restricted receivables described above.
Duke EnergyDuke Energy
  Duke Energy
 Duke Energy
 Duke Energy
Duke EnergyDuke EnergyDuke Energy
  Carolinas
 Progress
 Florida
CarolinasProgressFlorida
(in millions)CRC
 DERF
 DEPR
 DEFR
(in millions)CRCDERFDEPRDEFR
Expiration dateDecember 2018
 December 2018
 February 2019
 April 2019
Expiration dateFebruary 2025January 2025April 2023April 2023
Credit facility amount$325
 $425
 $300
 $225
Credit facility amount$350 $475 $350 $250 
Amounts borrowed at September 30, 2017325
 425
 300
 225
Amounts borrowed at December 31, 2016325
 425
 300
 225
Amounts borrowed at March 31, 2022Amounts borrowed at March 31, 2022350 499 350 250 
Amounts borrowed at December 31, 2021Amounts borrowed at December 31, 2021350 475 350 250 
Restricted Receivables at March 31, 2022Restricted Receivables at March 31, 2022566 858 658 503 
Restricted Receivables at December 31, 2021Restricted Receivables at December 31, 2021587 844 574 427 
Nuclear Asset-Recovery Bonds – DEFPF
Duke Energy Florida Project Finance, LLC (DEFPF)DEFPF is a bankruptcy remote, wholly owned special purpose subsidiary of Duke Energy Florida. DEFPF was formed in 2016 for the sole purpose of issuing nuclear asset-recovery bonds to finance Duke Energy Florida's unrecovered regulatory asset related to Crystal River Unit 3.
In June 2016, DEFPF issued $1,294 million of senior secured bonds and used the proceeds to acquire nuclear asset-recovery property from Duke Energy Florida. The nuclear asset-recovery property acquired includes the right to impose, bill, collect and adjust a non-bypassable nuclear asset-recovery charge from all Duke Energy Florida retail customers until the bonds are paid in full and all financing costs have been recovered. The nuclear asset-recovery bonds are secured by the nuclear asset-recovery property and cash collections from the nuclear asset-recovery charges are the sole source of funds to satisfy the debt obligation. The bondholders have no recourse to Duke Energy Florida.
DEFPF is considered a VIE primarily because the equity capitalization is insufficient to support its operations. Duke Energy Florida has the power to direct the significant activities of the VIE as described above and therefore Duke Energy Florida is considered the primary beneficiary and consolidates DEFPF.

71

FINANCIAL STATEMENTSVARIABLE INTEREST ENTITIES
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






The following table summarizes the impact of DEFPF on Duke Energy Florida's Condensed Consolidated Balance Sheets.
(in millions)September 30, 2017
December 31, 2016
(in millions)March 31, 2022December 31, 2021
Receivables of VIEs$6
$6
Receivables of VIEs$5 $
Current Assets: Regulatory assets51
50
Regulatory Assets: CurrentRegulatory Assets: Current54 54 
Current Assets: Other20
53
Current Assets: Other13 39 
Other Noncurrent Assets: Regulatory assets1,101
1,142
Other Noncurrent Assets: Regulatory assets872 883 
Current Liabilities: Other3
17
Current Liabilities: Other2 
Current maturities of long-term debt53
62
Current maturities of long-term debt56 56 
Long-Term Debt1,164
1,217
Long-Term Debt916 946 
Storm Recovery Bonds – Duke Energy Carolinas NC Storm Funding and Duke Energy Progress NC Storm Funding
Duke Energy Carolinas NC Storm Funding, LLC. (DECNCSF) and Duke Energy Progress NC Storm Funding, LLC. (DEPNCSF) are bankruptcy remote, wholly owned special purpose subsidiaries of Duke Energy Carolinas and Duke Energy Progress, respectively. These entities were formed in 2021 for the sole purpose of issuing storm recovery bonds to finance certain of Duke Energy Carolinas’ and Duke Energy Progress’ unrecovered regulatory assets related to storm costs.
In November 2021, DECNCSF and DEPNCSF issued $237 million and $770 million of senior secured bonds, respectively and used the proceeds to acquire storm recovery property from Duke Energy Carolinas and Duke Energy Progress. The storm recovery property was created by state legislation and NCUC financing orders for the purpose of financing storm costs incurred in 2018 and 2019. The storm recovery property acquired includes the right to impose, bill, collect and adjust a non-bypassable charge from all Duke Energy Carolinas’ and Duke Energy Progress’ retail customers until the bonds are paid in full and all financing costs have been recovered. The storm recovery bonds are secured by the storm recovery property and cash collections from the storm recovery charges are the sole source of funds to satisfy the debt obligation. The bondholders have no recourse to Duke Energy Carolinas or Duke Energy Progress.
DECNCSF and DEPNCSF are considered VIEs primarily because the equity capitalization is insufficient to support their operations. Duke Energy Carolinas and Duke Energy Progress have the power to direct the significant activities of the VIEs as described above and therefore Duke Energy Carolinas and Duke Energy Progress are considered the primary beneficiaries and consolidate DECNCSF and DEPNCSF, respectively.
The following table summarizes the impact of these VIEs on Duke Energy Carolinas’ and Duke Energy Progress’ Consolidated Balance Sheets.
March 31, 2022December 31, 2021
Duke EnergyDuke EnergyDuke EnergyDuke Energy
(in millions)CarolinasProgressCarolinasProgress
Regulatory Assets: Current$12 $39 $12 $39 
Current Assets: Other4 14 — — 
Other Noncurrent Assets: Regulatory assets217 711 220 720 
Other Noncurrent Assets: Other1 4 
Current Liabilities: Other2 6 — — 
Current maturities of long-term debt10 32 15 
Long-Term Debt223 730 228 747 
Commercial Renewables
Certain of Duke Energy’s renewable energy facilities are VIEs due to Duke Energy issuing guarantees for debt service and operations and maintenance reserves in support of debt financings. Assets are restricted and cannot be pledged as collateral or sold to third parties without prior approval of debt holders. Additionally, Duke Energy has VIEs associated with tax equity arrangements entered into with third-party investors in order to finance the cost of renewable assets eligible for tax credits. The activities that most significantly impactimpacted the economic performance of these renewable energy facilities were decisions associated with siting, negotiating PPAs engineering, procurement and constructionEngineering, Procurement and Construction agreements, and decisions associated with ongoing operations and maintenance-related activities. Duke Energy is considered the primary beneficiary and consolidates the entities as it is responsible for all of these decisions.
The table below presents material balances reported on Duke Energy's Condensed Consolidated Balance Sheets related to renewablesCommercial Renewables VIEs.
(in millions)March 31, 2022December 31, 2021
Current Assets: Other$215 $215 
Property, Plant and Equipment: Cost7,337 7,339 
Accumulated depreciation and amortization(1,534)(1,474)
Other Noncurrent Assets: Other70 62 
Current maturities of long-term debt297 167 
Long-Term Debt1,325 1,475 
Other Noncurrent Liabilities: AROs173 173 
Other Noncurrent Liabilities: Other360 319 
72

(in millions)September 30, 2017
December 31, 2016
Current Assets: Other$399
$223
Property, plant and equipment, cost3,923
3,419
Accumulated depreciation and amortization(556)(453)
Current maturities of long-term debt162
198
Long-Term Debt1,780
1,097
Deferred income taxes223
275
Other Noncurrent Liabilities: Other247
252
FINANCIAL STATEMENTSVARIABLE INTEREST ENTITIES

NON-CONSOLIDATED VIEs
The following tables summarize the impact of non-consolidated VIEs on the Condensed Consolidated Balance Sheets.
 September 30, 2017
 Duke Energy Duke
 Duke
 Pipeline
 Commercial
 Other
   Energy
 Energy
(in millions)Investments
 Renewables
 
VIEs(a)

 Total
 Ohio
 Indiana
Receivables from affiliated companies$
 $
 $
 $
 $46
 $75
Investments in equity method unconsolidated affiliates895
 172
 39
 1,106
 
 
Other noncurrent assets18
 
 
 18
 
 
Total assets$913
 $172
 $39
 $1,124
 $46
 $75
Other current liabilities
 
 3
 3
 
 
Deferred income taxes29
 
 
 29
 
 
Other noncurrent liabilities
 
 12
 12
 
 
Total liabilities$29
 $
 $15
 $44
 $
 $
Net assets$884
 $172
 $24
 $1,080
 $46
 $75
(a)Duke Energy holds a 50 percent equity interest in Duke-American Transmission Company, LLC (DATC). As of December 31, 2016, DATC was considered a VIE due to having insufficient equity to finance its own activities without subordinated financial support. However, DATC has sufficient equity to finance its own activities as of September 30, 2017, and, therefore, is no longer considered a VIE. Duke Energy's investment in DATC was $45 million at September 30, 2017.

March 31, 2022
Duke EnergyDukeDuke
PipelineCommercialEnergyEnergy
(in millions)InvestmentsRenewablesTotalOhioIndiana
Receivables from affiliated companies$ $ $ $65 $80 
Investments in equity method unconsolidated affiliates29 504 533   
Deferred tax asset61  61   
Total assets$90 $504 $594 $65 $80 
Other current liabilities50 3 53   
Other noncurrent liabilities52 3 55   
Total liabilities$102 $6 $108 $ $ 
Net (liabilities) assets$(12)$498 $486 $65 $80 
PART I
December 31, 2021
Duke EnergyDukeDuke
PipelineCommercialEnergyEnergy
(in millions)InvestmentsRenewablesTotalOhioIndiana
Receivables from affiliated companies$— $— $— $79 $97 
Investments in equity method unconsolidated affiliates15 508 523 — — 
Other noncurrent assets61 — 61 — — 
Total assets$76 $508 $584 $79 $97 
Other current liabilities47 51 — — 
Other noncurrent liabilities54 57 — — 
Total liabilities$101 $$108 $— $— 
Net (liabilities) assets$(25)$501 $476 $79 $97 
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





 December 31, 2016
 Duke Energy Duke
 Duke
  
 Pipeline
 Commercial
 Other
   Energy
 Energy
  
(in millions)Investments
 Renewables
 VIEs
 Total
 Ohio
 Indiana
 
Piedmont(a)

Receivables from affiliated companies$
 $
 $
 $
 $82
 $101
 $
Investments in equity method unconsolidated affiliates487
 174
 90
 751
 
 
 139
Other noncurrent assets12
 
 
 12
 
 
 
Total assets$499
 $174
 $90
 $763
 $82
 $101
 $139
Other current liabilities
 
 3
 3
 
 
 
Other noncurrent liabilities
 
 13
 13
 
 
 4
Total liabilities$
 $
 $16
 $16
 $
 $
 4
Net assets$499
 $174
 $74
 $747
 $82
 $101
 $135
(a)In April 2017, Piedmont transferred its non-consolidated VIE investments to a wholly owned subsidiary of Duke Energy. See "Pipeline Investments" section below for additional detail.
The Duke Energy Registrants are not aware of any situations where the maximum exposure to loss significantly exceeds the carrying values shown above except for the power purchase agreement with OVEC, which iscertain renewable energy project entities guarantees for debt services and operations and maintenance, as discussed below, and various guarantees, some of which are reflected in the table above as Other noncurrent liabilities. For more information on various guarantees, refer to Note 5.below.
Pipeline Investments
Duke Energy has investments in various joint ventures withto construct and operate pipeline projects currently under construction.projects. These entities are considered VIEs due to having insufficient equity to finance their own activities without subordinated financial support. Duke Energy does not have the power to direct the activities that most significantly impact the economic performance, the obligation to absorb losses or the right to receive benefits of these VIEs and therefore does not consolidate these entities.
The table below presents Duke Energy's ownership interest and investment balances in these joint ventures.
   VIE Investment Amount (in millions)
 Ownership September 30, December 31,
Entity NameInterest 2017 2016
ACP47% $595
 $265
Sabal Trail7.5% 218
 140
Constitution24% 82
 82
Total  $895
 $487
At December 31, 2016, Piedmont had a 7 percent ownership interest in ACP and a 24 percent ownership interest in Constitution. In April 2017, Piedmont transferred its ownership interests in ACP and Constitution to a wholly owned subsidiary of Duke Energy at book value.
In October 2017, ACP executed a $3.4 billion revolving credit facility with a stated maturity date of October 2021. Duke Energy entered into a guarantee agreement to support its share of the ACP revolving credit facility. Duke Energy's maximum exposure to loss under the terms of the guarantee is limited to 47 percent of the outstanding borrowings under the credit facility. Through October 2017, ACP has borrowed $570 million against the revolving credit facility.
Commercial Renewables
Duke Energy has investments in various renewable energy project entities. SomeDuke Energy has a 50% ownership in a VIE, which owns a portfolio of these entities are VIEs due towind projects. This entity is a VIE as a result of Duke Energy issuing guarantees for debt service and operations and maintenance reserves in support of debt financings. Duke Energy does not consolidate these VIEsthis VIE because power to direct and control key activities is shared jointly by Duke Energy and the other owners.
Other VIEs
owner. Duke Energy holdsalso has equity ownership in an entity, which owns a 50 percent equity interest in Pioneer Transmission, LLC (Pioneer). Pioneer is considered a VIE dueportfolio of fuel cell projects. Duke Energy does not consolidate the fuel cell portfolio as it does not have the power to having insufficient equity to finance its own activities without subordinated financial support. Thedirect the activities that most significantly impact Pioneer'sthe economic performance are decisions related toof the development of new transmission facilities. The power to direct these activities is jointly and equally shared by Duke Energy and the other joint venture partner, American Electric Power; therefore, Duke Energy does not consolidate Pioneer.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





entity.
OVEC
Duke Energy Ohio’s 9 percent9% ownership interest in OVEC is considered a non-consolidated VIE due to OVEC having insufficient equity to finance its activities without subordinated financial support. The activities that most significantly impact OVEC's economic performance include fuel strategy and supply activities and decisions associated with ongoing operations and maintenance-related activities. Duke Energy Ohio does not have the unilateral power to direct these activities, and therefore, does not consolidate OVEC.
As a counterparty to an inter-company power agreementInter-Company Power Agreement (ICPA), Duke Energy Ohio has a contractual arrangement to receive entitlements to capacity and energy from OVEC’s power plants through June 2040 commensurate with its power participation ratio, which is equivalent to Duke Energy Ohio's ownership interest. Costs, including fuel, operating expenses, fixed costs, debt amortization and interest expense, are allocated to counterparties to the ICPA based on their power participation ratio. The value of the ICPA is subject to variability due to fluctuation in power prices and changes in OVEC's cost of business, including costs associated with its 2,256 MW of coal-fired generation capacity. Deterioration in the credit quality or bankruptcy of one or more parties to the ICPA could increase the costs of OVEC. In addition, certain proposed environmental rulemaking could result in future increased cost allocations.business.
CRC
See discussion under Consolidated VIEs for additional information related to CRC.
73

FINANCIAL STATEMENTSVARIABLE INTEREST ENTITIES

Amounts included in Receivables from affiliated companies in the above table for Duke Energy Ohio and Duke Energy Indiana reflect their retained interest in receivables sold to CRC. These subordinated notes held by Duke Energy Ohio and Duke Energy Indiana are stated at fair value. Carrying values of retained interests are determined by allocating carrying value of the receivables between assets sold and interests retained based on relative fair value. The allocated bases of the subordinated notes are not materially different than their face value because (i) the receivables generally turn over in less than two months, (ii) credit losses are reasonably predictable due to the broad customer base and lack of significant concentration and (iii) the equity in CRC is subordinate to all retained interests and thus would absorb losses first. The hypothetical effect on fair value of the retained interests assuming both a 10 percent and a 20 percent unfavorable variation in credit losses or discount rates is not material due to the short turnover of receivables and historically low credit loss history. Interest accrues to Duke Energy Ohio and Duke Energy Indiana on the retained interests using the acceptable yield method. This method generally approximates the stated rate on the notes since the allocated basis and the face value are nearly equivalent. An impairment charge is recorded against the carrying value of both retained interests and purchased beneficial interest whenever it is determined that an OTTI has occurred.
Key assumptions used in estimating fair value are detailed in the following table.
 Duke Energy Ohio Duke Energy Indiana
 2017
 2016
 2017
 2016
Anticipated credit loss ratio0.5% 0.5% 0.3% 0.3%
Discount rate2.0% 1.5% 2.0% 1.5%
Receivable turnover rate13.4% 13.3% 10.7% 10.6%
The following table shows the gross and net receivables sold.
Duke Energy Ohio Duke Energy IndianaDuke Energy OhioDuke Energy Indiana
(in millions)September 30, 2017
 December 31, 2016
 September 30, 2017
 December 31, 2016
(in millions)March 31, 2022December 31, 2021March 31, 2022December 31, 2021
Receivables sold$209
 $267
 $304
 $306
Receivables sold$263 $269 $305 $328 
Less: Retained interests46
 82
 75
 101
Less: Retained interests65 79 80 97 
Net receivables sold$163
 $185
 $229
 $205
Net receivables sold$198 $190 $225 $231 
The following table shows sales and cash flows related to receivables sold.
Duke Energy Ohio Duke Energy IndianaDuke Energy OhioDuke Energy Indiana
Three Months Ended Nine Months Ended Three Months Ended Nine Months EndedThree Months EndedThree Months Ended
September 30, September 30, September 30, September 30,March 31,March 31,
(in millions)2017
 2016
 2017
 2016
 2017
 2016
 2017
 2016
(in millions)2022202120222021
Sales               Sales
Receivables sold$438
 $481
 $1,392
 $1,442
 $720
 $722
 $2,047
 $1,980
Receivables sold$663 $561 $782 $698 
Loss recognized on sale2
 2
 7
 7
 3
 3
 9
 8
Loss recognized on sale3 4 
Cash flows               Cash flows
Cash proceeds from receivables sold$434
 $468
 $1,421
 $1,432
 $713
 $703
 $2,064
 $1,958
Cash proceeds from receivables sold$674 $596 $795 $746 
Collection fees received1
 1
 1
 1
 
 
 1
 1
Collection fees received —  — 
Return received on retained interests
 1
 2
 2
 2
 2
 5
 4
Return received on retained interests1 2 
Cash flows from sales of receivables are reflected within Cash Flows From Operating Activities and Cash Flows from Investing Activities on Duke Energy Ohio’s and Duke Energy Indiana’s Condensed Consolidated Statements of Cash Flows.

PART I12. REVENUE
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –Duke Energy earns substantially all of its revenues through its reportable segments, Electric Utilities and Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables.
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.Electric Utilities and Infrastructure
Combined NotesElectric Utilities and Infrastructure earns the majority of its revenues through retail and wholesale electric service through the generation, transmission, distribution and sale of electricity. Duke Energy generally provides retail and wholesale electric service customers with their full electric load requirements or with supplemental load requirements when the customer has other sources of electricity.
The majority of wholesale revenues are full requirements contracts where the customers purchase the substantial majority of their energy needs and do not have a fixed quantity of contractually required energy or capacity. As such, related forecasted revenues are considered optional purchases. Supplemental requirements contracts that include contracted blocks of energy and capacity at contractually fixed prices have the following estimated remaining performance obligations:
Remaining Performance Obligations
(in millions)20222023202420252026ThereafterTotal
Progress Energy$80 $53 $45 $$$43 $235 
Duke Energy Progress6 — — — 22 
Duke Energy Florida74 45 37 43 213 
Duke Energy Indiana2 11 16 17 15 12 73 
Revenues for block sales are recognized monthly as energy is delivered and stand-ready service is provided, consistent with invoiced amounts and unbilled estimates.
Gas Utilities and Infrastructure
Gas Utilities and Infrastructure earns its revenue through retail and wholesale natural gas service through the transportation, distribution and sale of natural gas. Duke Energy generally provides retail and wholesale natural gas service customers with all natural gas load requirements. Additionally, while natural gas can be stored, substantially all natural gas provided by Duke Energy is consumed by customers simultaneously with receipt of delivery.
74

FINANCIAL STATEMENTSREVENUE

Fixed-capacity payments under long-term contracts for the Gas Utilities and Infrastructure segment include minimum margin contracts and supply arrangements with municipalities and power generation facilities. Revenues for related sales are recognized monthly as natural gas is delivered and stand-ready service is provided, consistent with invoiced amounts and unbilled estimates. Estimated remaining performance obligations are as follows:
Remaining Performance Obligations
(in millions)20222023202420252026ThereafterTotal
Piedmont$48 $64 $61 $60 $50 $286 $569 
Commercial Renewables
Commercial Renewables earns the majority of its revenues through long-term PPAs and generally sells all of its wind and solar facility output, electricity and Renewable Energy Certificates (RECs) to customers. Some of these PPAs have been accounted for as leases. For PPAs that are not accounted for as leases, the delivery of electricity and the delivery of RECs are considered separate performance obligations.
Other
The remainder of Duke Energy’s operations is presented as Other, which does not include material revenues from contracts with customers.
Disaggregated Revenues
Disaggregated revenues are presented as follows:
Three Months Ended March 31, 2022
DukeDukeDukeDukeDuke
(in millions)DukeEnergyProgressEnergyEnergyEnergyEnergy
By market or type of customerEnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Electric Utilities and Infrastructure
   Residential$2,767 $831 $1,368 $624 $744 $211 $354 $ 
   General1,604 544 726 325 401 116 218  
   Industrial772 276 270 194 76 35 192  
   Wholesale626 113 411 349 62 23 79  
   Other revenues202 111 211 139 72 21 (36) 
Total Electric Utilities and Infrastructure revenue from contracts with customers$5,971 $1,875 $2,986 $1,631 $1,355 $406 $807 $ 
Gas Utilities and Infrastructure
   Residential$572 $ $ $ $ $149 $ $423 
   Commercial269     64  204 
   Industrial57     7  50 
   Power Generation       24 
   Other revenues115     6  93 
Total Gas Utilities and Infrastructure revenue from contracts with customers$1,013 $ $ $ $ $226 $ $794 
Commercial Renewables
Revenue from contracts with customers$51 $ $ $ $ $ $ $ 
Other
Revenue from contracts with customers$7 $ $ $ $ $ $ $ 
Total revenue from contracts with customers$7,042 $1,875 $2,986 $1,631 $1,355 $632 $807 $794 
Other revenue sources(a)
$90 $13 $6 $1 $ $6 $15 $11 
Total revenues$7,132 $1,888 $2,992 $1,632 $1,355 $638 $822 $805 
(a)Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.
75

FINANCIAL STATEMENTSREVENUE

Three Months Ended March 31, 2021
DukeDukeDukeDukeDuke
(in millions)DukeEnergyProgressEnergyEnergyEnergyEnergy
By market or type of customerEnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Electric Utilities and Infrastructure
   Residential$2,462 $793 $1,162 $560 $602 $195 $313 $— 
   General1,419 502 624 306 318 104 189 — 
   Industrial662 256 207 145 62 31 167 — 
   Wholesale504 114 326 292 34 13 50 — 
   Other revenues226 74 160 83 77 22 18 — 
Total Electric Utilities and Infrastructure revenue from contracts with customers$5,273 $1,739 $2,479 $1,386 $1,093 $365 $737 $— 
Gas Utilities and Infrastructure
   Residential$460 $— $— $— $— $110 $— $351 
   Commercial204 — — — — 48 — 156 
   Industrial50 — — — — — 43 
   Power Generation— — — — — — — 22 
   Other revenues47 — — — — — 26 
Total Gas Utilities and Infrastructure revenue from contracts with customers$761 $— $— $— $— $170 $— $598 
Commercial Renewables
Revenue from contracts with customers$54 $— $— $— $— $— $— $— 
Other
Revenue from contracts with customers$$— $— $— $— $— $— $— 
Total revenue from contracts with customers$6,094 $1,739 $2,479 $1,386 $1,093 $535 $737 $598 
Other revenue sources(a)
$56 $(23)$26 $15 $$(3)$$
Total revenues$6,150 $1,716 $2,505 $1,401 $1,101 $532 $745 $606 
(a)Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.
Duke Energy adopted the new guidance for credit losses effective January 1, 2020, using the modified retrospective method of adoption, which does not require restatement of prior year reported results. The following table presents the reserve for credit losses for trade and other receivables based on adoption of the new standard.
Three Months Ended March 31, 2021 and 2022
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Balance at December 31, 2020$146 $23 $37 $23 $14 $$$12 
Write-Offs(21)(8)(10)(5)(5)— — (1)
Credit Loss Expense17 10 — — 
Other Adjustments— — — 
Balance at March 31, 2021$147 $34 $37 $23 $15 $$$14 
Balance at December 31, 2021$122 $42 $36 $21 $16 $$$15 
Write-Offs(23)(9)(10)(2)(8)  (1)
Credit Loss Expense24 5 12 4 8   3 
Other Adjustments17 14 13 8 5    
Balance at March 31, 2022$140 $52 $51 $31 $21 $4 $3 $17 
76

FINANCIAL STATEMENTSREVENUE

Trade and other receivables are evaluated based on an estimate of the risk of loss over the life of the receivable and current and historical conditions using supportable assumptions. Management evaluates the risk of loss for trade and other receivables by comparing the historical write-off amounts to total revenue over a specified period. Historical loss rates are adjusted due to the impact of current conditions, as well as forecasted conditions over a reasonable time period. The calculated write-off rate can be applied to the receivable balance for which an established reserve does not already exist. Management reviews the assumptions and risk of loss periodically for trade and other receivables.
The aging of trade receivables is presented in the table below. Duke Energy considers receivables greater than 30 days outstanding past due.
March 31, 2022
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Unbilled Revenue(a)(b)
$945 $339 $270 $161 $109 $7 $44 $64 
0-30 days2,133 518 944 558 386 40 26 215 
30-60 days288 75 111 64 47 8 4 23 
60-90 days102 33 40 22 18 2 3 7 
90+ days274 119 77 39 38 46 9 7 
Deferred Payment Arrangements(c)
136 60 61 33 28 2  4 
Trade and Other Receivables$3,878 $1,144 $1,503 $877 $626 $105 $86 $320 
December 31, 2021
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Unbilled Revenue(a)(b)
$964 $316 $266 $193 $73 $$27 $106 
0-30 days2,104 595 800 405 393 42 51 202 
30-60 days212 77 72 44 28 13 12 
60-90 days88 37 41 21 20 
90+ days249 106 65 37 28 47 11 
Deferred Payment Arrangements(c)
115 55 45 22 23 — 
Trade and Other Receivables$3,732 $1,186 $1,289 $722 $565 $100 $103 $333 
(a)Unbilled revenues are recognized by applying customer billing rates to the estimated volumes of energy or natural gas delivered but not yet billed and are included within Receivables and Receivables of VIEs on the Condensed Consolidated Financial Statements – (Unaudited) – (Continued)Balance Sheets.





Collection fees received in connection with servicing transferred accounts receivable are included in Operation, maintenance and other on (b)Duke Energy Ohio’sOhio and Duke Energy Indiana’sIndiana sell, on a revolving basis, nearly all of their retail accounts receivable, including receivables for unbilled revenues, to an affiliate, CRC, and account for the transfers of receivables as sales. Accordingly, the receivables sold are not reflected on the Condensed Consolidated StatementsBalance Sheets of OperationsDuke Energy Ohio and Comprehensive Income. The loss recognized on salesDuke Energy Indiana. See Note 11 for further information. These receivables for unbilled revenues are $63 million and $100 million for Duke Energy Ohio and Duke Energy Indiana, respectively, as of receivables is calculated monthly by multiplying receivables sold during the monthMarch 31, 2022, and $82 million and $121 million for Duke Energy Ohio and Duke Energy Indiana, respectively, as of December 31, 2021.
(c)Due to certain customer financial hardships created by the required discount. The required discount is derived monthly utilizingCOVID-19 pandemic and resulting stay-at-home orders, Duke Energy permitted customers to defer payment of past-due amounts through an installment payment plan over a three-year weighted average formula that considers charge-off history, late charge history and turnover history on the sold receivables, as well as a component for the time valueperiod of money. The discount rate, or component for the time value of money, is the prior month-end LIBOR plus a fixed rate of 1.00 percent.several months.
14. COMMON STOCK13. STOCKHOLDERS' EQUITY
Basic Earnings Per Share (EPS)EPS is computed by dividing net income attributableavailable to Duke Energy common stockholders, as adjusted for distributed and undistributed earnings allocated to participating securities and accumulated preferred dividends, by the weighted average number of common shares outstanding during the period. Diluted EPS is computed by dividing net income attributableavailable to Duke Energy common stockholders, as adjusted for distributed and undistributed earnings allocated to participating securities and accumulated preferred dividends, by the diluted weighted average number of common shares outstanding during the period. Diluted EPS reflects the potential dilution that could occur if securities or other agreements to issue common stock, such as stock options and equity forward sale agreements, were exercised or settled. Duke Energy’s participating securities are restricted stock units that are entitled to dividends declared on Duke Energy common stock during the restricted stock unit’s vesting periods. Dividends declared on preferred stock are recorded on the Condensed Consolidated Statements of Operations as a reduction of net income to arrive at net income available to Duke Energy common stockholders. Dividends accumulated on preferred stock are an adjustment to net income used in the calculation of basic and diluted EPS.
77

FINANCIAL STATEMENTSSTOCKHOLDERS' EQUITY

The following table presents Duke Energy’s basic and diluted EPS calculations, and reconciles the weighted average number of common shares outstanding to the diluted weighted average number ofand common shares outstanding.
and preferred share dividends declared.
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions, except per-share amounts)2017
 2016
 2017
 2016
Income from continuing operations attributable to Duke Energy common stockholders excluding impact of participating securities$954
 $998
 $2,356
 $2,194
Weighted average shares outstanding – basic700
 689
 700
 689
Equity Forwards
 2
 
 1
Weighted average shares outstanding – diluted700 691 700 690
Earnings per share from continuing operations attributable to Duke Energy common stockholders       
Basic$1.36
 $1.44
 $3.37
 $3.19
Diluted$1.36
 $1.44
 $3.37
 $3.18
Potentially dilutive items excluded from the calculation(a)
2
 2
 2 2
Dividends declared per common share$0.89
 $0.855
 $2.60
 $2.505
Three Months Ended March 31,
(in millions, except per share amounts)20222021
Net income available to Duke Energy common stockholders$818 $953 
Accumulated preferred stock dividends adjustment12 12 
Less: Impact of participating securities1 
Income from continuing operations available to Duke Energy common stockholders$829 $964 
Weighted average common shares outstanding – basic and diluted770 769 
EPS available to Duke Energy common stockholders
Basic and diluted$1.08 $1.25 
Potentially dilutive items excluded from the calculation(a)
2 
Dividends declared per common share$0.985 $0.965 
Dividends declared on Series A preferred stock per depositary share(b)
$0.359 $0.359 
Dividends declared on Series B preferred stock per share(c)
$24.375 $24.375 
(a)
(a)Performance stock awards were not included in the dilutive securities calculation because the performance measures related to the awards had not been met.
Equity Forwards
In March 2016, Duke Energy marketed an equity offering of 10.6 million shares of common stock. In lieu of issuing equity at the time of the offering, Duke Energy entered into equity forward sale agreements with Barclays (the Equity Forwards). The Equity Forwards required Duke Energy to either physically settle the transactions by issuing 10.6 million shares, or net settle in whole or in part through the delivery or receipt of cash or shares. As of September 30, 2016, share dilution resulting from the agreements was determined under the treasury stock method.
Duke Energy physically settled the Equity Forwards in full in October 2016 following the close of the Piedmont acquisition. See Note 2 for additional information related to the Piedmont acquisition.awards had not been met.
15. STOCK-BASED COMPENSATION
For employee awards, equity classified stock-based compensation cost is measured at the service inception date or the grant date, based(b)5.75% Series A Cumulative Redeemable Perpetual Preferred Stock dividends are payable quarterly in arrears on the estimated achievement16th day of certain performance metrics orMarch, June, September and December. The preferred stock has a $25 liquidation preference per depositary share.
(c)4.875% Series B Fixed-Rate Reset Cumulative Redeemable Perpetual Preferred Stock dividends are payable semiannually in arrears on the fair value16th day of the award,March and is recognized as expense or capitalized asSeptember. The preferred stock has a component of property, plant and equipment over the requisite service period.$1,000 liquidation preference per share.
Pretax stock-based compensation costs, the tax benefit associated with stock-based compensation expense and stock-based compensation costs capitalized are included in the following table.
 Three Months Ended Nine Months Ended
 September 30, September 30,
(in millions)2017
 2016
 2017
 2016
Restricted stock unit awards$10
 $8
 $30
 $25
Performance awards7
 4
 20
 14
Pretax stock-based compensation cost$17
 $12
 $50
 $39
Tax benefit associated with stock-based compensation expense$6
 $5
 $18
 $14
Stock-based compensation costs capitalized1
 
 2
 2

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Prior to Duke Energy acquiring Piedmont, Piedmont had an incentive compensation plan for eligible officers and other participants. Piedmont's total pretax stock-based compensation costs were approximately $2 million and $5 million for the three and nine months ended September 30, 2016, respectively. The tax benefit associated with Piedmont's stock-based compensation expense for the three and nine months ended September 30, 2016, was immaterial.
16.14. EMPLOYEE BENEFIT PLANS
DEFINED BENEFIT RETIREMENT PLANS
Duke Energy maintains,and certain subsidiaries maintain, and the Subsidiary Registrants participate in, qualified and non-qualified, non-contributory defined benefit retirement plans. Duke Energy’sEnergy's policy is to fund amounts on an actuarial basis to provide assets sufficient to meet benefit payments to be paid to plan participants. The following table includes information related to the Duke Energy Registrants' contributions to its U.S. qualified defined benefit pension plans.
   Duke
  
 Duke
 Energy
  
(in millions)Energy
 Ohio
 Piedmont
Anticipated 2017 contributions$19
 $4
 $11
Contributions made during the nine months ended September 30, 20178
 4
 
Remaining estimated contributions to be made in 2017$11
 $
 $11
Duke Energy did not make any contributions to its U.S. qualified defined benefit pension plans during the nine months ended September 30, 2016.
Net periodic benefit costs disclosed in the tables below represent the cost of the respective benefit plan for the periods presented. However, portions of the net periodic benefit costs disclosed in the tables below have been capitalized as a component of property, plant and equipment. Amounts presented in the tables below for the Subsidiary Registrants represent the amounts of pension and other post-retirement benefit costs allocated by Duke Energy for employees of the Subsidiary Registrants. Additionally, the Subsidiary Registrants are allocated their proportionate share of pension and post-retirement benefit costs for employees of Duke Energy’s shared services affiliate that provides support to the Subsidiary Registrants. These allocated amounts are included in the governance and shared service costs discussed in Note 9. Duke Energy uses a December 31 measurement date for its defined benefit retirement plan assets and obligations.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





QUALIFIED PENSION PLANS
The following tables include the components of net periodic pension costs for qualified pension plans.
 Three Months Ended September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$40
 $12
 $12
 $6
 $5
 $1
 $2
 $3
Interest cost on projected benefit obligation82
 20
 25
 12
 13
 4
 7
 3
Expected return on plan assets(136) (35) (43) (21) (21) (7) (11) (6)
Amortization of actuarial loss36
 8
 14
 6
 7
 1
 3
 3
Amortization of prior service credit(6) (2) (1) 
 
 
 
 (1)
Other2
 
 1
 
 
 
 
 
Net periodic pension costs$18
 $3
 $8
 $3
 $4
 $(1) $1
 $2
Three Months Ended September 30, 2016Three Months Ended March 31, 2022
  Duke
   Duke
 Duke
 Duke
 Duke
  DukeDukeDukeDukeDuke
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Service cost$36
 $12
 $11
 $6
 $4
 $1
 $2
 $3
Service cost$40 $12 $12 $7 $4 $1 $2 $1 
Interest cost on projected benefit obligation83
 21
 27
 12
 14
 5
 7
 2
Interest cost on projected benefit obligation58 14 18 8 10 3 5 2 
Expected return on plan assets(128) (35) (42) (21) (21) (6) (10) (6)Expected return on plan assets(140)(38)(46)(22)(24)(5)(9)(6)
Amortization of actuarial loss33
 8
 14
 6
 7
 1
 3
 2
Amortization of actuarial loss24 5 6 3 3 1 2 2 
Amortization of prior service credit(4) (2) (1) 
 (1) 
 
 (1)Amortization of prior service credit(5)(1)     (2)
Other2
 1
 1
 
 1
 
 
 
Amortization of settlement chargesAmortization of settlement charges2 1 1      
Net periodic pension costs$22
 $5
 $10
 $3
 $4
 $1
 $2
 $
Net periodic pension costs$(21)$(7)$(9)$(4)$(7)$ $ $(3)
 Nine Months Ended September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$120
 $36
 $36
 $18
 $15
 $3
 $6
 $9
Interest cost on projected benefit obligation246
 60
 75
 36
 39
 14
 21
 9
Expected return on plan assets(408) (106) (129) (63) (63) (21) (33) (18)
Amortization of actuarial loss108
 24
 42
 18
 21
 3
 9
 9
Amortization of prior service credit(18) (6) (3) 
 
 
 
 (3)
Other6
 
 3
 1
 
 
 
 1
Net periodic pension costs$54
 $8
 $24
 $10
 $12
 $(1) $3
 $7
Nine Months Ended September 30, 2016Three Months Ended March 31, 2021
  Duke
   Duke
 Duke
 Duke
 Duke
  DukeDukeDukeDukeDuke
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Service cost$109
 $36
 $32
 $18
 $14
 $3
 $6
 $8
Service cost$44 $14 $13 $$$$$
Interest cost on projected benefit obligation249
 64
 80
 37
 42
 15
 21
 7
Interest cost on projected benefit obligation55 13 17 10 
Expected return on plan assets(386) (106) (126) (62) (63) (20) (31) (18)Expected return on plan assets(139)(35)(47)(21)(26)(7)(10)(5)
Amortization of actuarial loss99
 24
 41
 17
 21
 3
 9
 6
Amortization of actuarial loss33 10 
Amortization of prior service credit(12) (6) (3) (1) (1) 
 
 (2)Amortization of prior service credit(7)(2)(1)— — — — (1)
Other6
 2
 2
 1
 1
 
 
 
Amortization of settlement chargesAmortization of settlement charges— — — — — 
Net periodic pension costs$65
 $14
 $26
 $10
 $14
 $1
 $5
 $1
Net periodic pension costs$(12)$(2)$(7)$(2)$(6)$(1)$— $(1)

78

FINANCIAL STATEMENTSEMPLOYEE BENEFIT PLANS
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






NON-QUALIFIED PENSION PLANS
The following tables include the components of netNet periodic pension costs for non-qualified pension plans were not material for registrants with non-qualified pension costs.
 Three Months Ended September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Service cost$
 $
 $
 $
 $
Interest cost on projected benefit obligation4
 
 1
 1
 1
Amortization of actuarial loss2
 
 1
 
 
Net periodic pension costs$6
 $
 $2
 $1
 $1
 Three Months Ended September 30, 2016
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Service cost$1
 $
 $
 $
 $
Interest cost on projected benefit obligation4
 
 2
 
 
Amortization of actuarial loss2
 
 1
 1
 1
Amortization of prior service credit(1) 
 
 
 
Net periodic pension costs$6

$

$3

$1

$1
 Nine Months Ended September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Service cost$
 $
 $
 $
 $
Interest cost on projected benefit obligation10
 1
 3
 2
 2
Amortization of actuarial loss6
 
 3
 
 
Net periodic pension costs$16
 $1
 $6
 $2
 $2
 Nine Months Ended September 30, 2016
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Service cost$2
 $
 $
 $
 $
Interest cost on projected benefit obligation11
 1
 4
 1
 1
Amortization of actuarial loss6
 
 2
 1
 1
Amortization of prior service credit(1) 
 
 
 
Net periodic pension costs$18

$1

$6

$2

$2
the three months ended March 31, 2022, and 2021.
OTHER POST-RETIREMENT BENEFIT PLANS
Duke Energy provides,Net periodic costs for OPEB plans were not material for the three months ended March 31, 2022, and the Subsidiary Registrants participate in, some health care and life insurance benefits for retired employees on a contributory and non-contributory basis.2021.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The following tables include the components of net periodic other post-retirement benefit costs.
 Three Months Ended September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$1
 $
 $
 $
 $
 $
 $
 $
Interest cost on accumulated post-retirement benefit obligation9
 2
 4
 2
 2
 
 1
 
Expected return on plan assets(3) (2) 
 
 
 
 
 
Amortization of actuarial loss2
 
 5
 3
 2
 
 
 
Amortization of prior service credit(29) (2) (21) (14) (8) 
 
 
Net periodic other post-retirement benefit costs$(20) $(2) $(12) $(9) $(4) $
 $1
 $
 Three Months Ended September 30, 2016
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$
 $
 $1
 $
 $
 $
 $
 $1
Interest cost on accumulated post-retirement benefit obligation9
 2
 4
 2
 3
 
 1
 
Expected return on plan assets(2) (2) (1) 
 
 
 
 
Amortization of actuarial loss (gain)2
 
 5
 3
 2
 (1) 
 
Amortization of prior service credit(35) (4) (26) (16) (8) 
 (1) 
Net periodic other post-retirement benefit costs$(26) $(4) $(17) $(11) $(3) $(1) $
 $1
 Nine Months Ended September 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$3
 $
 $
 $
 $
 $
 $
 $
Interest cost on accumulated post-retirement benefit obligation27
 6
 11
 6
 6
 
 1
 
Expected return on plan assets(10) (6) 
 
 
 
 
 
Amortization of actuarial loss (gain)6
 (2) 15
 9
 6
 (1) 
 
Amortization of prior service credit(87) (6) (63) (41) (23) 
 
 
Net periodic other post-retirement benefit costs$(61) $(8) $(37) $(26) $(11) $(1) $1
 $
 Nine Months Ended September 30, 2016
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$2
 $
 $1
 $
 $
 $
 $
 $1
Interest cost on accumulated post-retirement benefit obligation26
 6
 11
 6
 6
 1
 3
 1
Expected return on plan assets(9) (6) (1) 
 
 
 (1) (1)
Amortization of actuarial loss (gain)5
 (2) 16
 9
 7
 (2) (1) 
Amortization of prior service credit(106) (10) (77) (50) (26) 
 (1) 
Net periodic other post-retirement benefit costs$(82) $(12) $(50) $(35) $(13) $(1) $
 $1

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





DEFINED CONTRIBUTION RETIREMENT PLANS
EMPLOYEE SAVINGS PLANS
Duke Energy sponsors, and the Subsidiary Registrants participate in, employee savings plans that cover substantially all U.S. employees. The following table presents employer contributions made by Duke Energy and expensed by the Subsidiary Registrants.
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Three Months Ended September 30,               
2017$43
 $14
 $12
 $9
 $4
 $1
 $2
 $2
201639
 13
 12
 8
 3
 1
 2
 2
Nine Months Ended September 30,            
2017$147
 $49
 $42
 $30
 $13
 $3
 $7
 $5
2016130
 44
 39
 27
 11
 3
 6
 5
MONEY PURCHASE PENSION PLAN
Duke Energy provides, and Piedmont participates in, the Money Purchase Pension (MPP) plan, which is a defined contribution pension plan that allows certain employees to direct investments and assume risk of investment returns. In January 2017, a $2 million contribution was made to the MPP plan.
17.15. INCOME TAXES
EFFECTIVE TAX RATES
The effective tax ratesETRs from continuing operations for each of the Duke Energy Registrants are included in the following table.
Three Months Ended Nine Months EndedThree Months Ended
September 30, September 30,March 31,
2017
 2016
 2017
 2016
20222021
Duke Energy27.6% 34.0% 30.4% 31.7%Duke Energy(1.7)%8.2 %
Duke Energy Carolinas32.9% 34.3% 34.1% 34.4%Duke Energy Carolinas7.4 %6.9 %
Progress Energy29.1% 32.8% 31.9% 34.7%Progress Energy15.9 %12.9 %
Duke Energy Progress31.7% 31.4% 32.4% 33.5%Duke Energy Progress14.0 %8.3 %
Duke Energy Florida34.8% 36.0% 36.1% 37.0%Duke Energy Florida20.1 %19.3 %
Duke Energy Ohio33.3% 36.8% 34.4% 32.5%Duke Energy Ohio(266.7)%13.3 %
Duke Energy Indiana38.3% 35.2% 39.0% 34.0%Duke Energy Indiana31.9 %17.6 %
Piedmont(a)
47.6% 40.0% 36.1% 37.7%
PiedmontPiedmont13.4 %11.4 %
(a) Piedmont is in a net loss position for the three months ended September 30, 2017, and 2016.
The decrease in the effective tax rate (ETR) for Duke Energy for the three months ended September 30, 2017, is primarily due to higher research credits, tax benefits of legal entity restructuring and prior year unfavorable impacts of finalizing federal tax audits. The decrease in the ETR for Duke Energy for the ninethree months ended September 30, 2017, isMarch 31, 2022, was primarily due to higher research credits, tax benefitsan increase in the amortization of legal entity restructuring and higher production tax creditsexcess deferred taxes related to wind projects placed in service; partially offset by lower investment tax credits due to lower solar investments.the Duke Energy Ohio MGP Settlement.
The decrease in the ETR for Duke Energy Carolinas for the three months ended September 30, 2017, is primarily due to the favorable impact of research credits, provision to return true ups, and lower North Carolina corporate tax rates.
The decreaseincrease in the ETR for Progress Energy for the three and nine months ended September 30, 2017, isMarch 31, 2022, was primarily due to a decrease in the favorable impactamortization of research credits and lower North Carolina corporate tax rates.excess deferred taxes.
The decreaseincrease in the ETR for Duke Energy Progress for the ninethree months ended September 30, 2017, isMarch 31, 2022, was primarily due to the favorable impact of research credits and lower North Carolina corporate tax rates.
Thea decrease in the ETR for Duke Energy Florida for the three months ended September 30, 2017, is primarily due to the favorable impactamortization of research credits.excess deferred taxes.
The decrease in the ETR for Duke Energy Ohio for the three months ended September 30, 2017, is primarily due to the favorable impact of research credits. The increase in the ETR for Duke Energy Ohio for the nine months ended September 30, 2017, isMarch 31, 2022, was primarily due to an immaterial out of period adjustmentincrease in the prior yearamortization of excess deferred taxes related to deferred tax balances associated with property, plant and equipment.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





the MGP Settlement.
The increase in the ETR for Duke Energy Indiana for the three months ended September 30, 2017, isMarch 31, 2022, was primarily due to state tax credits recorded in the prior year. The increase incoal ash impairment based on the ETR for Duke Energy Indiana for the nine months ended September 30, 2017, is primarily due to an immaterial out of period adjustment in the prior year related to deferred tax balances associated with property, plant and equipment.Supreme Court Opinion.
The increase in the ETR for Piedmont for the three months ended September 30, 2017, isMarch 31, 2022, was primarily due to favorable tax return true ups and lower North Carolina corporate tax rates in relation to pretax losses. Thea decrease in the ETR for Piedmont for the nine months ended September 30, 2017, is primarily due to favorable tax return true ups and lower North Carolina corporate tax rates.amortization of excess deferred taxes.
TAXES ON FOREIGN EARNINGS
As of December 31, 2015, Duke Energy's intention was to indefinitely reinvest any future undistributed foreign earnings earned after December 31, 2014. In February 2016, Duke Energy announced it had initiated a process to divest the International Disposal Group and, accordingly, no longer intended to indefinitely reinvest post-2014 undistributed foreign earnings. This change in the company's intent, combined with the extension of bonus depreciation by Congress in late 2015, allowed Duke Energy to more efficiently utilize foreign tax credits and reduce U.S. deferred tax liabilities associated with historical unremitted foreign earnings by approximately $95 million for the nine months ended September 30, 2016. Due to the classification of the International Disposal Group as discontinued operations, income tax amounts related to the International Disposal Group's foreign earnings are presented within (Loss) Income from Discontinued Operations, net of tax on the Condensed Consolidated Statements of Operations. See Note 2 for additional information related to the sale of the International Disposal Group.
18.16. SUBSEQUENT EVENTS
For information on additional subsequent events related to business segments, regulatory matters, and commitments and contingencies, and VIEs, see Notes 3 4, 5 and 13.4.

79
PART I


MD&ADUKE ENERGY

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following combined Management’s Discussion and Analysis of Financial Condition and Results of Operations is separately filed by Duke Energy Corporation (collectively with its subsidiaries, Duke Energy) and Duke Energy Carolinas, LLC (Duke Energy Carolinas), Progress Energy, Inc. (Progress Energy), Duke Energy Progress, LLC (Duke Energy Progress), Duke Energy Florida, LLC (Duke Energy Florida), Duke Energy Ohio, Inc. (Duke Energy Ohio), Duke Energy Indiana LLC (Duke Energy Indiana) and Piedmont Natural Gas Company, Inc. (Piedmont) (collectively referred to as the Subsidiary Registrants).Piedmont. However, none of the registrants make any representation as to information related solely to Duke Energy or the Subsidiary Registrants of Duke Energy other than itself.
DUKE ENERGY
Duke Energy is an energy company headquartered in Charlotte, North Carolina. Duke Energy operates in the United States (U.S.)U.S. primarily through its wholly owned subsidiaries, Duke Energy Carolinas, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont. When discussing Duke Energy’s consolidated financial information, it necessarily includes the results of the Subsidiary Registrants, which along with Duke Energy are collectively referred to as the Duke Energy Registrants. Piedmont's results of operations are included in Duke Energy's results for the three and nine months ended September 30, 2017, but not for the three and nine months ended September 30, 2016, as Piedmont's earnings are only included in Duke Energy's consolidated results subsequent to the acquisition date. See below for additional information regarding the acquisition.
Management’s Discussion and Analysis should be read in conjunction with the Condensed Consolidated Financial Statements and Notes for the ninethree months ended September 30, 2017,March 31, 2022, and with Duke Energy’s Annual Report on Form 10-K for the year ended December 31, 2016, Piedmont's Annual Report on Form 10-K for the year ended October 31, 2016, and the transition report filed by Piedmont on Form 10-Q (Form 10-QT) as of December 31, 2016, for the transition period from November 1, 2016, to December 31, 2016.2021.
Executive Overview
Hurricane IrmaAdvancing Our Clean Energy Transformation
During the first quarter, we continued to execute on our clean energy transformation, delivering strong, sustainable value for shareholders, customers, communities and employees.
We’re targeting energy generated from coal to represent less than 5% by 2030 and a full exit by 2035, subject to regulatory approvals. We’ve made strong progress in reducing carbon emissions from electricity generation (a 44% reduction from 2005) and have committed to do more (at least 50% reduction by 2030 and net-zero by 2050).
We continued to execute financings under our Sustainable Financing Framework, raising approximately $2 billion during the quarter under the structure, with proceeds being allocated to eligible projects such as electric grid investments that support the deployment of renewables, new solar generation and battery storage, storm hardening and electric vehicle infrastructure, as well as expenditures that enable opportunities for diverse and small businesses.
Regulatory Activity. During the first quarter of 2022, we continued to monitor developments while moving our regulatory strategy forward. See Note 3 to the Condensed Consolidated Financial Statements, "Regulatory Matters," for additional information.
In September 2017, Hurricane Irma caused widespread damage acrossApril 2022, the Southeast region, at its peak leaving approximately 1.3 millionMGP Settlement was approved without modification by the PUCO. The MGP Settlement resolved certain issues related to MGP remediation costs and the Tax Act as it related to Duke Energy Florida customers without power.Ohio’s natural gas operations.
In April 2022, Piedmont Natural Gas filed a request with the South Carolina Public Service Commission to recover recent capital investments and update its operating costs and billing rates through a general rate case proceeding.
In March 2022, the Indiana Supreme Court issued an opinion, which absent IURC preapproval of deferred accounting treatment determined DEI could not recover coal ash closure costs incurred between base rate cases. In connection with the rate case application filed in Indiana in 2019 by Duke Energy's restoration effortsEnergy Indiana, the IURC issued an order in responseJune 2020, which among other things provided for recovery of approximately $211 million of certain coal ash closure costs incurred by DEI prior to this devastating storm utilizedthe IURC Order. The Court remanded the matter back to the IURC for proceedings consistent with the opinion. Duke Energy Indiana filed a teamrequest for rehearing with the Supreme Court on April 11, 2022.
In February 2022, the NCUC adopted rules to govern the application and review process for the PBR authorized under HB 951. In April 2022, the NCUC adopted rules to govern the securitization of over 12,000 line50% of the North Carolina retail portion of the remaining net book value of retiring coal plants pursuant to HB 951. The rules are constructive and service crewsconsistent with the policy objectives of HB 951. We remain engaged in next steps including developing an initial carbon reduction plan.
In January 2022, the NCUC issued an order approving the stipulation of partial settlement related to the 2021 Piedmont North Carolina Rate Case, which included a base rate increase of $67 million, subject to completion of the Robeson County LNG facility and hundredsthe Pender Onslow County expansion project.
Matters Impacting Future Results
The matters discussed herein could materially impact the future operating results, financial condition and cash flows of employee volunteers. Storm restoration costs (including capital) for the Duke Energy Florida service territory are currently estimated at approximately $500 million.Registrants and Business Segments.
Regulatory Matters
Coal Ash Costs
Future spending of coal ash costs, including amounts recorded for depreciation and liability accretion, is expected to continue to be deferred and recovered in future rate cases or rider filings. The vast majority of these costs have been deferredspend is expected to occur over the next 15-20 years.
80

MD&AMATTERS IMPACTING FUTURE RESULTS

Duke Energy Indiana has interpreted the CCR rule to identify the coal ash basin sites impacted and has assessed the amounts of coal ash subject to the balance sheet for future recovery from customersrule and a method of compliance. In 2020, the Hoosier Environmental Council filed a petition challenging the Indiana Department of Environmental Management's (IDEM) partial approval of five of Duke Energy Indiana’s ash pond site closure plans at Gallagher Station. The petition does not challenge the other basin closures approved by IDEM at other Indiana stations. Interpretation of the requirements of the CCR rule is subject to further legal challenges and regulatory approvals, which could result in Florida, per existing state statute. Lost revenuesadditional ash basin closure requirements, higher costs of compliance and greater AROs. Additionally, Duke Energy Indiana has retired facilities that are not subject to the CCR rule. Duke Energy Indiana may incur costs at these facilities to comply with environmental regulations or to mitigate risks associated with Hurricane Irma were approximately $20 million inon-site storage of coal ash. In January 2022, Duke Energy Indiana received a letter from the third quarterEPA regarding interpretation of 2017.the CCR rule. See Note 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters""Commitments and Contingencies" for additionalmore information.
Regulatory ActivityCommercial Renewables
In the third quarter of 2017, Duke Energy advanced regulatory activity underwaycontinues to monitor recoverability of renewable merchant plants located in the ERCOT West market and in the PJM West market, due to fluctuating market pricing and long-term forecasted energy prices. Based on the most recent recoverability test, the carrying value approximated the aggregate estimated future undiscounted cash flows for the assets under review. A continued decline in energy market pricing or other factors unfavorably impacting the economics would likely result in a future impairment. Impairment of these assets could result in adverse impacts. For additional information, see Note 2 to the Condensed Consolidated Financial Statements, "Business Segments."
In February 2021, a severe winter storm impacted certain Commercial Renewables assets in Texas. Extreme weather conditions limited the ability for these solar and wind facilities to generate and sell electricity into the ERCOT market. Duke Energy has been named in multiple jurisdictions, achieving several key milestones.
In August 2017, Duke Energy Carolinas filed a base rate case with the North Carolina Utilities Commission. The rate request was driven by capital investments in new, highly efficient natural gas combined-cycle plants and other plant upgrades, coal ash basin closure activities and grid improvement projects. Hearings are scheduled to commence in February 2018.
In Florida, Duke Energy worked closely with stakeholders to build upon and extend the existing settlement agreement from 2013. In late August, Duke Energy Florida reached a favorable agreement with numerous parties in the state, including the consumer advocate, and that agreement was approved by the Florida Public Service Commission (FPSC) in late October. As outlined in the settlement, Duke Energy Florida agreed to no longer recover any remaining costs associated with the canceled Levy Nuclear Project and as a result incurred a pretax impairment chargelawsuits arising out of $135 million during the third quarter.
Seethis winter storm. For more information, see Note 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters" for additional information."Commitments and Contingencies."
2016 Acquisition of Piedmont Natural Gas
On October 3, 2016, Duke Energy completed the acquisition of Piedmont for a total cash purchase price of $5.0 billion and assumed Piedmont's existing long-term debt, which had a fair value of approximately $2.0 billion at the time of the acquisition. The acquisition provides a foundation for Duke Energy to establish a broader, long-term strategic natural gas infrastructure growth platform to complement the existing natural gas pipeline investments and regulated natural gas business in the Midwest.Supply Chain
Duke Energy incurred pretax nonrecurring transactionis monitoring supply chain disruptions, including the cost and integration costs associated withavailability of key components of planned generating facilities, which could impact the acquisitiontiming of $23 millionin-service or economics of renewable projects and $69 million formay result in adverse impacts on operating results. The Company is also monitoring the threeimpacts on future financial results and nine months ended September 30, 2017, respectively, and $65 million and $256 million for the three and nine months ended September 30, 2016, respectively. Acquisition-related costs in the prior year were principallyclean energy goals due to losses on forward-starting interest rate swaps related to the acquisition financingavailability of $22 million and $190 million for the three and nine months ended September 30, 2016, respectively. For additional information on the swaps see Note 10 to the Condensed Consolidated Financial Statements, "Derivatives and Hedging."
Duke Energy expects to incur system integration and other acquisition-related transition costs, primarily through 2018, that are necessary to achieve certain anticipated cost savings, efficiencies and other benefits. See Note 2 to the Condensed Consolidated Financial Statements, "Acquisitions and Dispositions," for additional information regarding the transaction.

PART I

2016 Sale of International Energy
In December 2016, Duke Energy sold its Latin American generation businesses (International Disposal Group) in two separate transactions forsolar panels as a combined enterprise value of $2.4 billion. The transactions generated cash proceeds of $1.9 billion, excluding transaction costs, which were primarily used to reduce Duke Energy holding company debt. Due to the transactions, resultsresult of the International Disposal Group are classified as discontinued operations. See Note 2 toU.S. Department of Commerce investigation into the Condensed Consolidated Financial Statements, "Acquisitionspotential circumvention of anti-dumping and Dispositions" for additional information.countervailing duties by certain Chinese companies.
Results of Operations
Non-GAAP Measures
Management’s Discussion and Analysis includes financial information prepared in accordance with generally accepted accounting principles (GAAP)GAAP in the U.S., as well as certain non-GAAP financial measures.measures such as adjusted earnings and adjusted EPS discussed below. Generally, a non-GAAP financial measure is a numerical measure of financial performance, financial position or cash flows that excludes (or includes) amounts that are included in (or excluded from) the most directly comparable measure calculated and presented in accordance with GAAP. Non-GAAP financial measures should be viewed as a supplement to, and not a substitute for, financial measures presented in accordance with GAAP. Non-GAAP measures presented may not be comparable to similarly titled measures used by other companies because other companies may not calculate the measures in the same manner.
Management evaluates financial performance in part based on non-GAAP financial measures, including adjusted earnings and adjusted diluted earnings per share (EPS).EPS. Adjusted earnings and adjusted diluted EPS represent income from continuing operations attributableavailable to Duke Energy Corporation common stockholders in dollar and per share amounts, adjusted for the dollar and per-shareper share impact of special items. As discussed below, special items represent certain charges and credits, which management believes are not indicative of Duke Energy's ongoing performance.
Management believes the presentation of adjusted earnings and adjusted diluted EPS provides useful information to investors, as it provides them with an additional relevant comparison of Duke Energy’s performance across periods. Management uses these non-GAAP financial measures for planning and forecasting and for reporting financial results to the Duke Energy Board of Directors, employees, stockholders, analysts and investors. Adjusted diluted EPS is also used as a basis for employee incentive bonuses. The most directly comparable GAAP measures for adjusted earnings and adjusted diluted EPS are Net Income Attributable to Duke Energy Corporation (GAAPGAAP Reported Earnings)Earnings (Loss) and Diluted EPS Attributable to Duke Energy Corporation common stockholders (GAAPGAAP Reported EPS),Earnings (Loss) Per Share, respectively.
Special items included in the periods presented below include the following, items, which management believes do not reflect ongoing costs:
Costs to Achieve Mergers represent charges that result from strategic acquisitions.
Cost Savings Initiatives represent severance Regulatory Matters represents the net impact of charges related to companywide initiatives, excluding merger integration,the 2022 Indiana Supreme Court ruling on coal ash.
Gas Pipeline Investments represents additional exit obligations related to standardize processes and systems, leverage technology and workforce optimization.ACP.
Commercial Renewables Impairments represents other-than-temporary and asset impairments.Three Months Ended March 31, 2022, as compared to March 31, 2021
Florida Settlement represents an impairment chargeGAAP reported EPS was $1.08 for the first quarter of 2022 compared to a $1.25 in the first quarter of 2021. In addition to the drivers below, GAAP reported EPS decreased primarily due to charges related to the Levy nuclear project basedIndiana Supreme Court ruling on a settlement agreement approved by regulators.coal ash.
Adjusted earnings also include operating results of the International Disposal Group, which have been classified as discontinued operations. Management believes inclusion of the operating results of the Disposal Group within adjusted earnings and adjusted diluted EPS results in a better reflection of Duke Energy's financial performance during the period.
Three Months Ended September 30, 2017, as compared to September 30, 2016
GAAP Reported EPS was $1.36 for the third quarter of 2017 compared to $1.70 for the third quarter of 2016. The decrease in GAAP Reported EPS was primarily due to less favorable weather, an impairment at Duke Energy Florida and prior year income from discontinued operations including International Energy which was sold in 2016; partially offset by a lower effective tax rate, lower costs associated with the Piedmont acquisition and growth from investments.
As discussed above, management also evaluates financial performance based on adjusted diluted EPS. Duke Energy’s thirdfirst quarter 20172022 adjusted diluted EPS was $1.59$1.30 compared to $1.68$1.26 for the thirdfirst quarter of 2016. 2021. The increase in adjusted EPS was primarily due to higher volumes, partially offset by higher operation and maintenance expense, including storm costs, and lower returns on benefit trusts.
81

MD&ADUKE ENERGY

The following table reconciles non-GAAP measures, including adjusted diluted EPS, to their most directly comparable GAAP measures.
 Three Months Ended March 31,
20222021
(in millions, except per share amounts)EarningsEPS EarningsEPS
GAAP Reported Earnings/GAAP Reported EPS$818 $1.08 $953 $1.25 
Adjustments:
Regulatory Matters(a)
173 0.22 — — 
Gas Pipeline Investments(b)
  0.01 
Adjusted Earnings/Adjusted EPS$991 $1.30 $958 $1.26 
(a)Net of tax benefit of $62 million and $22 million in noncontrolling interests.
(b)Net of tax benefit of $1 million.
 Three Months Ended September 30,
 2017 2016
(in millions, except per-share amounts)Earnings EPS Earnings EPS
GAAP Reported Earnings/GAAP Reported EPS$954
 $1.36
 $1,176
 $1.70
Adjustments:       
Costs to Achieve Mergers(a)
14
 0.03
 52
 0.07
Cost Savings Initiatives(b)

 
 12
 0.02
Commercial Renewables Impairments (c)
56
 0.08
 45
 0.07
Florida Settlement (d)
84
 0.12
 
 
Discontinued Operations(e)
2
 
 (122) (0.18)
Adjusted Earnings/Adjusted Diluted EPS$1,110
 $1.59
 $1,163
 $1.68

PART I

(a)Net of $9 million tax benefit in 2017 and $32 million tax benefit in 2016.
(b)Net of $7 million tax benefit in 2016.
(c)Net of $28 million tax benefit in 2017 and $26 million tax benefit in 2016.
(d)Net of $51 million tax benefit in 2017.
(e)The 2016 amount represents tax adjustments related to previously sold businesses not related to the International Disposal Group.
The decrease in adjusted earnings for the three months ended September 30, 2017, compared to the same period in 2016 was primarily due to:
Lower regulated electric revenues due to less favorable weather in the current year, including lost revenues related to Hurricane Irma;
The prior year operating results of the International Disposal Group, which was sold in December 2016; and
Higher financing costs, primarily due to the Piedmont acquisition.
Partially offset by:
Higher regulated electric revenues from increased pricing and riders driven by new rates in Duke Energy Progress South Carolina, base rate adjustments in Florida, and energy efficiency rider revenues in North Carolina;
Additional earnings from incremental investments in the Atlantic Coast Pipeline (ACP) natural gas pipeline; and
Lower income taxes due to prior year unfavorable tax adjustments and benefits in the current year from legal entity restructuring.
Nine Months Ended September 30, 2017, as compared to September 30, 2016
Duke Energy's GAAP Reported EPS was $3.36 for the nine months ended September 30, 2017, compared to $3.44 for the nine months ended September 30, 2016. The decrease in GAAP Reported EPS was driven by less favorable weather compared to the prior year, an impairment at Duke Energy Florida and prior year income from discontinued operations including International Energy which was sold in 2016; partially offset by lower costs associated with the Piedmont acquisition, lower severance charges, effective cost control and growth from investments.
As discussed above, management also evaluates financial performance based on adjusted diluted EPS. Duke Energy’s adjusted diluted EPS for the nine months ended September 30, 2017, was $3.63 compared to $3.88 for the nine months ended September 30, 2016. The following table reconciles non-GAAP measures, including adjusted diluted EPS, to their most directly comparable GAAP measures.
 Nine Months Ended September 30,
 2017 2016
(in millions, except per-share amounts)Earnings EPS Earnings EPS
GAAP Reported Earnings/GAAP Reported EPS$2,356
 $3.36
 $2,379
 $3.44
Adjustments:       
Costs to Achieve Mergers(a)
43
 0.06
 195
 0.28
Cost Savings Initiatives(b)

 
 39
 0.06
Commercial Renewables Impairments (c)
56
 0.08
 45
 0.07
Florida Settlement (d)
84
 0.12
 
 
Discontinued Operations(e)
4
 0.01
 21
 0.03
Adjusted Earnings/Adjusted Diluted EPS$2,543
 $3.63
 $2,679
 $3.88
(a)Net of $26 million tax benefit in 2017 and $120 million tax benefit in 2016.
(b)Net of $24 million tax benefit in 2016.
(c)Net of $28 million tax benefit in 2017 and $26 million tax benefit in 2016.
(d)Net of $51 million tax benefit in 2017.
(e)The 2016 amount includes an impairment charge related to certain assets in Central America that were sold in 2016, partially offset by a tax benefit related to previously sold businesses not related to the International Disposal Group.
The decrease in adjusted earnings for the nine months ended September 30, 2017, compared to the same period in 2016 was primarily due to:
Lower regulated electric revenues due to unfavorable weather compared to the prior year; and
The prior year operating results of the International Disposal Group, which was sold in December 2016. The 2016 operating results included a benefit from the revaluation of deferred income taxes. See Note 17 to the Condensed Consolidated Financial Statements, "Income Taxes," for additional information.
Partially offset by:
Higher regulated electric revenues from increased pricing and riders driven by new rates in Duke Energy Progress South Carolina, base rate adjustments in Florida and energy efficiency rider revenues in North Carolina, as well as growth in weather-normal retail volumes;
Lower operations, maintenance and other expense, net of amounts recoverable in rates, at Electric Utilities and Infrastructure resulting from ongoing cost efficiency efforts and lower year-to-date storm costs than the prior year;
Higher allowance for funds used during construction (AFUDC) equity due to capital investments at the electric utilities; and
Additional earnings from incremental investments in the ACP and Sabal Trail natural gas pipelines.

PART I

SEGMENT RESULTSMatters Impacting Future Results
Management evaluates segment performance based on segment income. Segment income is defined as income from continuing operations netThe matters discussed herein could materially impact the future operating results, financial condition and cash flows of income attributable to noncontrolling interests. Segment income includes intercompany revenues and expenses that are eliminated on the Condensed Consolidated Financial Statements.
Due to the Piedmont acquisition and the sale of International Energy in the fourth quarter of 2016, Duke Energy's segment structure was realigned to include the following segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables. The remainder of Duke Energy’s operations is presented as Other. Prior period information has been recast to conform to the current segment structure. See Note 2 to the Condensed Consolidated Financial Statements, "Acquisitions and Dispositions," for further information on the Piedmont acquisition and International Energy sale and Note 3, “Business Segments,” for additional information on Duke Energy’s segments.
Electric Utilities and Infrastructure
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
 2017
 2016
 Variance
Operating Revenues$6,129
 $6,340
 $(211) $16,234
 $16,430
 $(196)
Operating Expenses           
Fuel used in electric generation and purchased power1,872
 2,016
 (144) 4,875
 5,102
 (227)
Operation, maintenance and other1,297
 1,291
 6
 3,833
 3,819
 14
Depreciation and amortization777
 729
 48
 2,228
 2,139
 89
Property and other taxes277
 274
 3
 808
 799
 9
Impairment charges132
 9
 123
 134
 12
 122
Total operating expenses4,355
 4,319
 36
 11,878
 11,871
 7
Gains on Sales of Other Assets and Other, net
 1
 (1) 4
 3
 1
Operating Income1,774
 2,022
 (248) 4,360
 4,562
 (202)
Other Income and Expenses67
 75
 (8) 222
 215
 7
Interest Expense305
 287
 18
 925
 829
 96
Income Before Income Taxes1,536
 1,810
 (274) 3,657
 3,948
 (291)
Income Tax Expense516
 621
 (105) 1,273
 1,391
 (118)
Segment Income$1,020
 $1,189
 $(169) $2,384
 $2,557
 $(173)
           

Duke Energy Carolinas gigawatt-hours (GWh) sales24,135
 25,508
 (1,373) 66,159
 67,890
 (1,731)
Duke Energy Progress GWh sales18,827
 20,033
 (1,206) 50,026
 54,011
 (3,985)
Duke Energy Florida GWh sales12,132
 12,440
 (308) 31,177
 31,542
 (365)
Duke Energy Ohio GWh sales6,672
 7,214
 (542) 18,632
 19,117
 (485)
Duke Energy Indiana GWh sales8,795
 9,073
 (278) 24,975
 26,624
 (1,649)
Total Electric Utilities and Infrastructure GWh sales70,561
 74,268
 (3,707) 190,969
 199,184
 (8,215)
Net proportional megawatt (MW) capacity in operation    

 48,909
 49,411
 (502)
Three Months Ended September 30, 2017, as Compared to September 30, 2016
Electric Utilities and Infrastructure’s results were impacted by less favorable weather and an impairment at Duke Energy Florida, partially offset by growth from investments. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues. The variance was driven primarily by:
a $163 million decrease in fuel revenues due to lower retail sales volumes; and
a $160 million decrease in retail sales, net of fuel revenues, due to less favorable weather in the current year, including lost revenues related to Hurricane Irma.
Partially offset by:
a $90 million increase in retail pricing due to Duke Energy Florida's base rate adjustments for the Osprey acquisition and Hines Chillers and the Duke Energy Progress South CarolinaRegistrants and Business Segments.
Regulatory Matters
Coal Ash Costs
Future spending of coal ash costs, including amounts recorded for depreciation and liability accretion, is expected to continue to be deferred and recovered in future rate case, as well as increasedcases or rider revenues relatedfilings. The majority of spend is expected to energy efficiency programs, occur over the next 15-20 years.
80

MD&AMATTERS IMPACTING FUTURE RESULTS

Duke Energy Florida's nuclear asset securitization,Indiana has interpreted the CCR rule to identify the coal ash basin sites impacted and Midwest capital investments.
Operating Expenses. The variance was driven primarily by:
a $123 million increase in impairment charges primarily due to write-offhas assessed the amounts of remaining unrecovered Levy Nuclear Project costs at Duke Energy Florida in the current year; and
a $48 million increase in depreciation and amortization expense primarily due to additional plant in service.

PART I

Partially offset by:
a $144 million decrease in fuel expense, including purchased power, driven by lower retail sales.
Interest Expense. The increase was primarily due to higher debt outstanding in the current year to fund growth.
Income Tax Expense. The variance was primarily due to a decrease in pretax income and higher research credits, partially offset by the North Carolina corporate tax rate reduction in the prior year. The effective tax rates for the three months ended September 30, 2017, and 2016 were 33.6 percent and 34.3 percent, respectively.
Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Electric Utilities and Infrastructure’s results were impacted by less favorable weather comparedcoal ash subject to the prior yearrule and an impairment at Duke Energy Florida, partially offset by growth from investments and higher weather-normal retail sales volumes. The following is a detailed discussionmethod of compliance. In 2020, the variance drivers by line item.
Operating Revenues. The variance was driven primarily by:
Hoosier Environmental Council filed a $380 million decrease in retail sales, net of fuel revenues, due to unfavorable weather compared topetition challenging the prior year, including lost revenues related to Hurricane Irma; and
a $256 million decrease in fuel revenues primarily due to lower retail sales volumes.
Partially offset by:
a $346 million increase in rider revenues related to energy efficiency programs, Duke Energy Florida's nuclear asset securitization, Midwest transmission and distribution capital investments, and Duke Energy Indiana's Edwardsport Integrated Gasification Combined Cycle (IGCC) plant, as well as an increase in retail pricing due to Duke Energy Florida's base rate adjustments for the Osprey acquisition and Hines Chillers and the Duke Energy Progress South Carolina rate case; and
a $59 million increase in weather-normal sales volumes to retail customers.
Operating Expenses. The variance was driven primarily by:
a $122 million increase in impairment charges primarily due to the write-off of remaining unrecovered Levy Nuclear Project costs in the current year at Duke Energy Florida; and
an $89 million increase in depreciation and amortization expense primarily due to additional plant in service;
Partially offset by:
a $227 million decrease in fuel expense, including purchased power, primarily due to lower retail sales and changes in generation mix.
Interest Expense. The increase was primarily due to higher debt outstanding in the current year and Duke Energy Florida's Crystal River 3 (CR3) regulatory asset debt return ending in June 2016 upon securitization.
Income Tax Expense. The variance was primarily due to a decrease in pretax income and higher research credits, partially offset by the North Carolina corporate tax rate reduction. The effective tax rates for the nine months ended September 30, 2017, and 2016 were 34.8 percent and 35.2 percent, respectively.
Matters Impacting Future Electric Utilities and Infrastructure Results
An order from regulatory authorities disallowing recovery of costs related to closure of ash impoundments could have an adverse impact on Electric Utilities and Infrastructure's financial position, results of operations and cash flows. See Note 4 and Note 7 to the Condensed Consolidated Financial Statements, “Regulatory Matters” and "Asset Retirement Obligations," respectively, for additional information.
On May 18, 2016, the North CarolinaIndiana Department of Environmental Quality (NCDEQ) issued proposed risk classifications for all coalManagement's (IDEM) partial approval of five of Duke Energy Indiana’s ash surface impoundments in North Carolina. All ash impoundments not previously designated as high priority by the North Carolina Coal Ash Management Act of 2014 (Coal Ash Act) were designated as intermediate risk. Certain impoundments classified as intermediate risk, however, may be reassessed in the future as low risk pursuant to legislation signed by the former North Carolina governor on July 14, 2016. Electric Utilities and Infrastructure's estimated asset retirement obligations (AROs) related to the closure of North Carolina ash impoundments are based upon the mandated closure method or a probability weighting of potential closure methods for the impoundments that may be reassessed to low risk. As the final risk ranking classifications in North Carolina are delineated, finalpond site closure plans and corrective action measures are developed andat Gallagher Station. The petition does not challenge the other basin closures approved for each site,by IDEM at other Indiana stations. Interpretation of the closure work progresses andrequirements of the closure method scope and remedial methods are determined, the complexity of work and the amount of coal combustion material could be different than originally estimated and, therefore, could materially impact Electric Utilities and Infrastructure's financial position. See Note 9 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016, "Asset Retirement Obligations," for additional information.
Duke EnergyCCR rule is a party to multiple lawsuits and could be subject to finesfurther legal challenges and other penalties related to operations at certain North Carolina facilities with ash basins. The outcome of these lawsuits and potential fines and penalties could have an adverse impact on Electric Utilities and Infrastructure's financial position, results of operations and cash flows. See Note 5 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies,” for additional information.

PART I

In the fourth quarter of 2016, Hurricane Matthew caused historic flooding, extensive damage and widespread power outages within the Duke Energy Progress service territory. Duke Energy Progress filed a petition with the North Carolina Utilities Commission (NCUC) requesting an accounting order to defer incremental operation and maintenance and capital costs incurred in response to Hurricane Matthew and other significant 2016 storms. Current estimated incremental costs are approximately $116 million. The NCUC will address this request in Duke Energy Progress' currently pending rate case. A final order from the NCUC that disallows the deferral and future recovery of all or a significant portion of the incremental storm restoration costs incurredregulatory approvals, which could result in an adverse impact on Electric Utilitiesadditional ash basin closure requirements, higher costs of compliance and Infrastructure's financial position, resultsgreater AROs. Additionally, Duke Energy Indiana has retired facilities that are not subject to the CCR rule. Duke Energy Indiana may incur costs at these facilities to comply with environmental regulations or to mitigate risks associated with on-site storage of operations and cash flows.coal ash. In January 2022, Duke Energy Indiana received a letter from the EPA regarding interpretation of the CCR rule. See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters,”"Commitments and Contingencies" for additionalmore information.
Commercial Renewables
Duke Energy has several rate cases pending. Duke Energy Kentucky filed an electric rate case with the Kentucky Public Service Commission (KPSC) on September 1, 2017,continues to recover costs of capital investments in generation, transmission and distribution systems and to recover other incremental expenses since its previous rate case. Duke Energy Carolinas and Duke Energy Progress filed general rate cases with the NCUC on August 25, 2017, and June 1, 2017, respectively, to recover costs of complying with Coal Combustion Residuals (CCR) regulations and the Coal Ash Act, as well as costs of capital investments in generation, transmission and distribution systems and any increase in expenditures subsequent to previous rate cases. In March 2017, Duke Energy Ohio filed an electric distribution base rate case application and supporting testimony with the Public Utility Commission of Ohio (PUCO). Electric Utilities and Infrastructure's earnings could be impacted adversely if these rate increases are delayed or denied by the KPSC, NCUC or PUCO. See Note 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters," for additional information.
On August 29, 2017, Duke Energy Florida filed a 2017 Second Revised and Restated Settlement Agreement (2017 Settlement) with the FPSC. The 2017 Settlement was approved by the FPSC on October 25, 2017. See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information about the 2017 Settlement. In accordance with the 2017 Settlement, Duke Energy Florida will not seek recovery of any costs associated with the ongoing Westinghouse contract litigation, which is currently being appealed. See Note 5 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies” for additional information about the litigation. An unfavorable appeals ruling on that matter could have an adverse impact on Electric Utilities and Infrastructure’s financial position, results of operations and cash flows. 
In September 2017, Hurricane Irma caused extensive damage and widespread power outages within the Duke Energy Florida service territory. Duke Energy Florida has not completed the final accumulation of storm restoration costs incurred. Total storm restoration costs, including capital, are currently estimated at approximately $500 million. In accordance with a regulatory order with FPSC, certain incremental operation and maintenance storm restoration costs are classified as a regulatory asset recognizing the probablemonitor recoverability of these costs under FPSC's storm rule. The Company will make a petition by the end of 2017 to FPSC for recovery of costs. Duke Energy Florida's cash flows could be impacted by the timing of cost recovery. See Note 4, "Regulatory Matters," to the Condensed Consolidated Financial Statements for additional information.
Gas Utilities and Infrastructure
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
 2017
 2016
 Variance
Operating Revenues$272
 $89
 $183
 $1,243
 $358
 $885
Operating Expenses           
Cost of natural gas68
 6
 62
 402
 64
 338
Operation, maintenance and other93
 30
 63
 291
 90
 201
Depreciation and amortization57
 19
 38
 171
 59
 112
Property and other taxes25
 12
 13
 81
 44
 37
Total operating expenses243
 67
 176
 945
 257
 688
Operating Income29
 22
 7
 298
 101
 197
Other Income and Expenses22
 7
 15
 60
 13
 47
Interest Expense26
 6
 20
 78
 19
 59
Income Before Income Taxes25
 23
 2
 280
 95
 185
Income Tax Expense6
 8
 (2) 101
 32
 69
Segment Income$19
 $15
 $4
 $179
 $63
 $116
            
Piedmont LDC throughput (dekatherms) (a)
107,490,775
 
 107,490,775
 334,781,316
 
 334,781,316
Duke Energy Midwest LDC throughput (Mcf)9,904,644
 9,568,340
 336,304
 52,940,410
 57,023,986
 (4,083,576)
(a)     Includes throughput subsequent to Duke Energy's acquisition of Piedmont on October 3, 2016.
Three Months Ended September 30, 2017, as Compared to September 30, 2016
Gas Utilities and Infrastructure’s higher results were primarily due to increased investmentsrenewable merchant plants located in the ACP pipeline. Piedmont's losses included in Gas Utilities and Infrastructure's results were $5 million for the three months ended September 30, 2017. All variances are related to the inclusion of Piedmont's results of operations as a result of Duke Energy's acquisition of Piedmont on October 3, 2016, except for the following:
Other Income and Expenses. The variance was driven primarily by increased investments in the ACP pipeline.

PART I

Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Gas Utilities and Infrastructure’s higher results were due to the inclusion of Piedmont's earnings in the current year as a result of Duke Energy's acquisition of Piedmont on October 3, 2016, as well as growth from investments in ACP and Sabal Trail pipelines. Piedmont's earnings included in Gas Utilities and Infrastructure's results were $95 million for the nine months ended September 30, 2017. All variances are related to the inclusion of Piedmont's results of operations, except for the following:
Other Income and Expenses. The variance was driven primarily by increased investments in the ACP and Sabal Trail pipelines.
Matters Impacting Future Gas Utilities and Infrastructure Results
Gas Utilities and Infrastructure has a 24 percent ownership interest in Constitution Pipeline Company, LLC (Constitution), a natural gas pipeline project slated to transport natural gas supplies to major northeastern markets. On April 22, 2016, the New York State Department of Environmental Conservation denied Constitution’s application for a necessary water quality certification for the New York portion of the Constitution pipeline. Constitution has stopped construction and discontinued capitalization of future development costs until the project's uncertainty is resolved. To the extent the legal and regulatory proceedings have unfavorable outcomes, or if Constitution concludes that the project is not viable or does not go forward, an impairment charge of up to the recorded investment in the project, net of any cash and working capital returned, may be recorded. With the project on hold, funding of project costs has ceased until resolution of legal actions. At September 30, 2017, Duke Energy's investment in Constitution was $82 million.
Rapidly rising interest rates without timely or adequate updates to the regulated allowed return on equity or failure to achieve the anticipated benefits of the Piedmont merger, including cost savings and growth targets, could significantly impact the estimated fair value of reporting units in Gas Utilities and Infrastructure. In the event of a significant decline in the estimated fair value of the reporting units, goodwill impairment charges could be recorded. The carrying value of goodwill within Gas Utilities and Infrastructure was approximately $1,924 million at September 30, 2017.
Commercial Renewables
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
 2017
 2016
 Variance
Operating Revenues$95
 $139
 $(44) $333
 $365
 $(32)
Operating Expenses           
Operation, maintenance and other56
 98
 (42) 191
 253
 (62)
Depreciation and amortization39
 34
 5
 116
 96
 20
Property and other taxes9
 8
 1
 26
 20
 6
Impairment charges76
 
 76
 76
 
 76
Total operating expenses180
 140
 40
 409
 369
 40
Gains on Sales of Other Assets and Other, net1
 2
 (1) 5
 4
 1
Operating (Loss) Income(84) 1
 (85) (71) 
 (71)
Other Income and Expenses(10) (76) 66
 (12) (78) 66
Interest Expense22
 15
 7
 64
 38
 26
Loss Before Income Taxes(116) (90) (26) (147) (116) (31)
Income Tax Benefit(65) (65) 
 (146) (127) (19)
Less: Loss Attributable to Noncontrolling Interests(2) (1) (1) (3) (2) (1)
Segment (Loss) Income$(49)
$(24) $(25) $2
 $13
 $(11)
            
Renewable plant production, GWh1,760
 1,801
 (41) 6,276
 5,619
 657
Net proportional MW capacity in operation    

 2,908
 2,725
 183
Three Months Ended September 30, 2017, as Compared to September 30, 2016
Commercial Renewables' results were impacted by lower investment tax credits (ITCs), higher interest expense on new debt financings and higher losses from Duke Energy's REC Solar investment. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues. The decrease was primarily due to lower engineering, procurement and construction revenues from REC Solar.
Operating Expenses. The increase was primarily due to a $69 million pretax impairment charge in the current year related to a wholly owned non-contracted wind project, partially offset by lower operations and maintenance expense at REC Solar. For additional information see Note 3 to the Condensed Consolidated Financial Statements, “Business Segments.”
Other Income and Expenses. The variance was primarily due to a $71 million pretax impairment charge in the prior year related to certain equity method investments. For additional information see Note 3 to the Condensed Consolidated Financial Statements, “Business Segments.”
Interest Expense. The increase was primarily due to new project financings.
Income Tax Benefit. Lower ITCs due to lower solar investments in the current year were offset by higher production tax credits (PTCs) related to wind projects placed in service.


PART I

Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Commercial Renewables' results were impacted by lower ITCs, higher interest expense on new debt financings and higher losses from REC Solar, partially offset by increased PTCs. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues. The decrease was primarily due to lower engineering, procurement and construction revenues from REC Solar.
Operating Expenses. The increase was primarily due to a $69 million pretax impairment charge in the current year related to a wholly owned non-contracted wind project and higher operating expenses related to new wind and solar projects placed in service, partially offset by lower operations and maintenance expense at REC Solar. For additional information see Note 3 to the Condensed Consolidated Financial Statements, “Business Segments.”
Other Income and Expenses. The variance was primarily due to a $71 million pretax impairment charge in the prior year related to certain equity method investments. For additional information see Note 3 to the Condensed Consolidated Financial Statements, “Business Segments.”
Interest Expense. The variance was primarily due to new project financings and less capitalized interest due to fewer projects under construction.
Income Tax Benefit.The variance was primarily due to an increase in PTCs related to wind projects placed in service, partially offset by lower ITCs due to lower solar investments in the current year.
Matters Impacting Future Commercial Renewables Results
Changes or variability in assumptions used in calculating the fair value of the Commercial Renewables reporting units for goodwill testing purposes including but not limited to legislative actions related to tax credit extensions, long-term growth rates and discount rates could significantly impact the estimated fair value of the Commercial Renewables reporting units. In the event of a significant decline in the estimated fair value of the Commercial Renewables reporting units, goodwill or other asset impairment charges could be recorded. The carrying value of goodwill within Commercial Renewables was approximately $115 million at September 30, 2017.
Persistently low market pricing for wind resources, primarily in the Electric Reliability Council of TexasERCOT West market and in the PJM West market, due to fluctuating market pricing and long-term forecasted energy prices. Based on the most recent recoverability test, the carrying value approximated the aggregate estimated future expirationundiscounted cash flows for the assets under review. A continued decline in energy market pricing or other factors unfavorably impacting the economics would likely result in a future impairment. Impairment of tax incentives including ITCs and PTCsthese assets could result in adverse impacts to the future results of Commercial Renewables.
Other
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
 2017
 2016
 Variance
Operating Revenues$35
 $32
 $3
 $103
 $91
 $12
Operating Expenses           
Fuel used in electric generation and purchased power13
 14
 (1) 42
 37
 5
Operation, maintenance and other21
 70
 (49) 47
 145
 (98)
Depreciation and amortization27
 37
 (10) 79
 108
 (29)
Property and other taxes3
 8
 (5) 10
 25
 (15)
Impairment charges
 
 
 7
 2
 5
Total operating expenses64
 129
 (65) 185
 317
 (132)
Gains on Sales of Other Assets and Other, net4
 3
 1
 15
 14
 1
Operating Loss(25) (94) 69
 (67) (212) 145
Other Income and Expenses51
 24
 27
 100
 60
 40
Interest Expense150
 157
 (7) 423
 553
 (130)
Loss Before Income Taxes(124) (227) 103
 (390) (705) 315
Income Tax Benefit(93) (49) (44) (193) (276) 83
Less: Income Attributable to Noncontrolling Interests3
 3
 
 8
 7
 1
Net Expense$(34) $(181) $147
 $(205) $(436) $231
Three Months Ended September 30, 2017, as Compared to September 30, 2016
Other's lower net expense was driven by tax benefits, insurance proceeds resulting from settlement of the shareholder litigation related to the Progress Energy merger, prior year donations to the Duke Energy Foundation and lower severance expenses. The following is a detailed discussion of the variance drivers by line item.
Operating Expenses. The decrease was primarily due to prior year donations to the Duke Energy Foundation, less captive insurance losses for Bison Insurance Company Limited and prior year severance expense related to cost savings initiatives.
Other Income and Expenses. The increase was driven by insurance proceeds resulting from settlement of the shareholder litigation related to the Progress Energy merger and higher earnings from the equity method investment in National Methanol Company (NMC).
Interest Expense. The decrease was driven by prior year losses on forward-starting interest rate swaps related to Piedmont pre-acquisition financing, partially offset by additional long-term debt outstanding in the current year. For additional information see Notes 2 and 10 to the Condensed Consolidated Financial Statements, "Acquisitions and Dispositions" and "Derivatives and Hedging," respectively.

PART I

Income Tax Benefit. The variance was primarily due to higher tax benefits resulting from legal entity restructuring, the 2016 North Carolina corporate tax rate reduction and prior year unfavorable impacts of finalizing federal tax audits, partially offset by lower pretax losses.
Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Other's lower net expense was driven by prior year losses on forward-starting interest rate swaps, prior year donations to the Duke Energy Foundation, insurance proceeds resulting from settlement of the shareholder litigation related to the Progress Energy merger and decreased severance expenses. The following is a detailed discussion of the variance drivers by line item.
Operating Expenses. The decrease was primarily due to prior year severance expenses related to cost savings initiatives, prior year donations to the Duke Energy Foundation and lower franchise taxes resulting from a North Carolina law change.
Other Income and Expenses. The increase was driven by insurance proceeds resulting from settlement of the shareholder litigation related to the Progress Energy merger and higher earnings from the equity method investment in NMC.
Interest Expense. The decrease was primarily by prior year losses on forward-starting interest rate swaps related to Piedmont pre-acquisition financing, partially offset by higher interest costs on $3.75 billion of debt issued in August 2016 to fund the acquisition. For additional information see Notes 2 and 10 to the Condensed Consolidated Financial Statements, "Acquisitions and Dispositions" and "Derivatives and Hedging," respectively.
Income Tax Benefit. The variance was primarily due to a decrease in pretax losses, partially offset by tax benefits resulting from legal entity restructuring and the net impact of North Carolina corporate tax rate reductions in 2017 and 2016.
Matters Impacting Future Other Results
Included in Other is Duke Energy Ohio's 9 percent ownership interest in the Ohio Valley Electric Corporation (OVEC), which owns 2,256 MW of coal-fired generation capacity. As a counterparty to an inter-company power agreement (ICPA), Duke Energy Ohio has a contractual arrangement to receive entitlements to capacity and energy from OVEC’s power plants through June 2040 commensurate with its power participation ratio, which is equivalent to Duke Energy Ohio's ownership interest. Costs, including fuel, operating expenses, fixed costs, debt amortization and interest expense, are allocated to counterparties to the ICPA, including Duke Energy Ohio, based on their power participation ratio. The value of the ICPA is subject to variability due to fluctuations in power prices and changes in OVEC’s costs of business. Deterioration in the credit quality or bankruptcy of one or more parties to the ICPA could increase the costs of OVEC. In addition, certain proposed environmental rulemaking costs could result in future increased cost allocations. For information on Duke Energy's regulatory filings related to OVEC, see Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters.”
The retired Beckjord generating station (Beckjord), a nonregulated facility retired during 2014, is not subject to the U.S. Environmental Protection Agency (EPA) rule related to the disposal of CCR from electric utilities. However, if costs are incurred as a result of environmental regulations or to mitigate risk associated with on-site storage of coal ash, the costs could have an adverse impact on Other's financial position, results of operations and cash flows.
Earnings from an equity method investment in NMC reflect sales of methanol and methyl tertiary butyl ether (MTBE), which generate margins that are directionally correlated with Brent crude oil prices. Weakness in the market price of Brent crude oil and related commodities may result in a decline in earnings. In October 2017, Duke Energy's economic ownership interest in NMC decreased from 25 percent to 17.5 percent.
On November 2, 2017, the U.S. House of Representatives issued its proposal for comprehensive tax reform. The U.S. Senate has not yet issued its related proposal. There is uncertainty as to whether any form of tax reform will become law and, if so, what provisions may be included in the final tax reform. Any substantial revision to the U.S. tax code, including a loss of the ability to deduct interest expense, could adversely impact Duke Energy's future earnings, cash flows or financial position.

(LOSS) INCOME FROM DISCONTINUED OPERATIONS, NET OF TAX
 Three Months Ended September 30, Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
 2017
 2016
 Variance
(Loss) Income From Discontinued Operations, net of tax$(2) $180
 $(182) $(4) $190
 $(194)
Three Months Ended September 30, 2017, as Compared to September 30, 2016
The variance was primarily driven by a $122 million income tax benefit in the prior year resulting from immaterial out of period deferred tax liability adjustments, as well as earnings from the International Disposal Group, which was sold in December 2016.impacts. For additional information, see Note 2 to the Condensed Consolidated Financial Statements, "Acquisitions"Business Segments."
In February 2021, a severe winter storm impacted certain Commercial Renewables assets in Texas. Extreme weather conditions limited the ability for these solar and Dispositions."
Nine Months Ended September 30, 2017, as Comparedwind facilities to September 30, 2016
The variance was primarily driven by a $122 million income tax benefitgenerate and sell electricity into the ERCOT market. Duke Energy has been named in the prior year resulting from immaterialmultiple lawsuits arising out of period deferred tax liability adjustments, as well as operating earnings from the International Disposal Group, partially offset by an impairment charged related to certain assets in Central America that were sold in 2016.this winter storm. For additionalmore information, see Note 2 to the Condensed Consolidated Financial Statements, "Acquisitions and Dispositions."

PART I

DUKE ENERGY CAROLINAS
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the nine months ended September 30, 2017, and 2016 and the Annual Report on Form 10-K for the year ended December 31, 2016.
Results of Operations
 Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
Operating Revenues$5,581
 $5,641
 $(60)
Operating Expenses     
Fuel used in electric generation and purchased power1,394
 1,391
 3
Operation, maintenance and other1,431
 1,481
 (50)
Depreciation and amortization804
 802
 2
Property and other taxes206
 206
 
Total operating expenses3,835
 3,880
 (45)
Losses on Sales of Other Assets and Other, net
 (1) 1
Operating Income1,746
 1,760
 (14)
Other Income and Expenses99
 121
 (22)
Interest Expense314
 316
 (2)
Income Before Income Taxes1,531
 1,565
 (34)
Income Tax Expense522
 539
 (17)
Net Income$1,009
 $1,026
 $(17)
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior year2017
Residential sales(6.7)%
General service sales(2.1)%
Industrial sales(0.5)%
Wholesale power sales3.9 %
Joint dispatch sales87.6 %
Total sales(2.5)%
Average number of customers1.5 %
Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Operating Revenues.The variance was driven primarily by:
a $213 million decrease in retail sales, net of fuel revenues, due to less favorable weather in the current year.
Partially offset by:
an $89 million increase in rider revenues and retail pricing primarily related to energy efficiency programs;
a $30 million increase in weather-normal sales volumes to retail customers, net of fuel revenues;
a $15 million increase in wholesale power revenues, net of sharing and fuel revenues, primarily due to additional volumes for customers served under long-term contracts; and
an $8 million increase in fuel revenues primarily due to changes in generation mix.
Operating Expenses. The variance was primarily due to a $50 million decrease in operation, maintenance and other expense primarily due to lower expenses at generating plants, lower storm restoration costs and lower severance expenses, partially offset by higher energy efficiency program costs and higher distribution maintenance expenses.
Other Income and Expenses. The variance was primarily due to a decrease in recognition of post in-service equity returns for projects that had been completed prior to being reflected in customer rates.
Income Tax Expense. The variance was primarily due to a decrease in pretax income and the favorable impact of research credits. The effective tax rates for the nine months ended September 30, 2017, and 2016 were 34.1 percent and 34.4 percent, respectively.
Matters Impacting Future Results
An order from regulatory authorities disallowing recovery of costs related to closure of ash impoundments could have an adverse impact on Duke Energy Carolinas' financial position, results of operations and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters”"Commitments and Note 9 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016, "Asset Retirement Obligations,Contingencies." for additional information.

PART I

On May 18, 2016, the NCDEQ issued proposed risk classifications for all coal ash surface impoundments in North Carolina. All ash impoundments not previously designated as high priority by the Coal Ash Act were designated as intermediate risk. Certain impoundments classified as intermediate risk, however, may be reassessed in the future as low risk pursuant to legislation signed by the former North Carolina governor on July 14, 2016. Duke Energy Carolinas' estimated AROs related to the closure of North Carolina ash impoundments are based upon the mandated closure method or a probability weighting of potential closure methods for the impoundments that may be reassessed to low risk. As the final risk ranking classifications in North Carolina are delineated, final closure plans and corrective action measures are developed and approved for each site, the closure work progresses, and the closure method scope and remedial action methods are determined, the complexity of work and the amount of coal combustion material could be different than originally estimated and, therefore, could materially impact Duke Energy Carolinas' financial position. See Note 9 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016, "Asset Retirement Obligations," for additional information.Supply Chain
Duke Energy Carolinas is a party to multiple lawsuitsmonitoring supply chain disruptions, including the cost and subject to finesavailability of key components of planned generating facilities, which could impact the timing of in-service or economics of renewable projects and other penalties related to operations at certain North Carolina facilities with ash basins.may result in adverse impacts on operating results. The outcome of these lawsuits, finesCompany is also monitoring the impacts on future financial results and penalties could have an adverse impact on Duke Energy Carolinas’ financial position, results of operations and cash flows. See Note 5clean energy goals due to the Condensed Consolidated Financial Statements, “Commitmentsavailability of solar panels as a result of the U.S. Department of Commerce investigation into the potential circumvention of anti-dumping and Contingencies,” for additional information.countervailing duties by certain Chinese companies.
Duke Energy Carolinas filed a general rate case on August 25, 2017, to recover costs
Results of complying with CCR regulations and the Coal Ash Act, as well as costs of capital investments in generation, transmission and distribution systems and any increase in expenditures subsequent to previous rate cases. Duke Energy Carolinas' earnings could be adversely impacted if the rate increase is delayed or denied by the NCUC.

Operations
PART I

PROGRESS ENERGYNon-GAAP Measures
Management’s Discussion and Analysis should be readincludes financial information prepared in conjunctionaccordance with GAAP in the accompanying Condensed Consolidated Financial Statements and Notes for the nine months ended September 30, 2017, and 2016 and the Annual Report on Form 10-K for the year ended December 31, 2016.
Results of Operations
 Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
Operating Revenues$7,435
 $7,645
 $(210)
Operating Expenses     
Fuel used in electric generation and purchased power2,588
 2,832
 (244)
Operation, maintenance and other1,650
 1,699
 (49)
Depreciation and amortization958
 904
 54
Property and other taxes386
 375
 11
Impairment charges137
 4
 133
Total operating expenses5,719
 5,814
 (95)
Gains on Sales of Other Assets and Other, net19
 18
 1
Operating Income1,735
 1,849
 (114)
Other Income and Expenses65
 79
 (14)
Interest Expense595
 497
 98
Income Before Income Taxes1,205
 1,431
 (226)
Income Tax Expense384
 496
 (112)
Net Income821
 935
 (114)
Less: Net Income Attributable to Noncontrolling Interests7
 8
 (1)
Net Income Attributable to Parent$814
 $927
 $(113)
Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Operating Revenues. The variance was driven primarily by:
a $256 million decrease in fuel revenues due to lower retail sales and changes in generation mix at Duke Energy Progress,U.S., as well as decreased capacity ratescertain non-GAAP financial measures such as adjusted earnings and adjusted EPS discussed below. Generally, a non-GAAP financial measure is a numerical measure of financial performance, financial position or cash flows that excludes (or includes) amounts that are included in (or excluded from) the most directly comparable measure calculated and presented in accordance with GAAP. Non-GAAP financial measures should be viewed as a supplement to, retail customers atand not a substitute for, financial measures presented in accordance with GAAP. Non-GAAP measures presented may not be comparable to similarly titled measures used by other companies because other companies may not calculate the measures in the same manner.
Management evaluates financial performance in part based on non-GAAP financial measures, including adjusted earnings and adjusted EPS. Adjusted earnings and adjusted EPS represent income from continuing operations available to Duke Energy Florida, partially offset by an increaseCorporation common stockholders in fuel rates to retail customers;dollar and per share amounts, adjusted for the dollar and per share impact of special items. As discussed below, special items represent certain charges and credits, which management believes are not indicative of Duke Energy's ongoing performance. The most directly comparable GAAP measures for adjusted earnings and adjusted EPS are GAAP Reported Earnings (Loss) and GAAP Reported Earnings (Loss) Per Share, respectively.
a $132 million decrease in retail sales, net of fuel revenues, due to less favorable weatherSpecial items included in the current year, including lost revenuesperiods presented below include the following, which management believes do not reflect ongoing costs:
Regulatory Matters represents the net impact of charges related to Hurricane Irma at Duke Energy Florida.the 2022 Indiana Supreme Court ruling on coal ash.
Partially offset by:Gas Pipeline Investments represents additional exit obligations related to ACP.
an $81 million increaseThree Months Ended March 31, 2022, as compared to March 31, 2021
GAAP reported EPS was $1.08 for the first quarter of 2022 compared to a $1.25 in retail pricing duethe first quarter of 2021. In addition to the base rate adjustment for the Osprey acquisition and the completion of the Hines Energy Complex Chiller Uprate Project, as well as the Duke Energy Progress South Carolina rate case; and
a $79 million increase in rider revenues related to energy efficiency programs at Duke Energy Progress, as well as nuclear asset securitization beginning in July 2016 and extended uprate project revenues beginning in 2017 at Duke Energy Florida.
Operating Expenses. The variance was driven primarily by:
a $244 million decrease in fuel expensedrivers below, GAAP reported EPS decreased primarily due to lower retail sales and changes in generation mix atcharges related to the Indiana Supreme Court ruling on coal ash.
As discussed above, management also evaluates financial performance based on adjusted EPS. Duke Energy Progress, as well as decreased purchased power and lower capacity costs, partially offset by higher generation and deferred fuel costs at Duke Energy Florida; and
a $49 million decrease in operation, maintenance and other expense dueEnergy’s first quarter 2022 adjusted EPS was $1.30 compared to lower storm restoration costs at Duke Energy Progress, lower planned outage costs and lower severance expenses, partially offset by higher storm restoration costs at Duke Energy Florida.
Partially offset by:
a $133 million$1.26 for the first quarter of 2021. The increase in impairment charges primarily due to the write-off of remaining unrecovered Levy Nuclear Project costs in the current year at Duke Energy Florida; and
a $54 million increase in depreciation and amortization expense primarily due to nuclear regulatory asset amortization, as well as additional plant in service at Duke Energy Florida.
Interest Expense. The varianceadjusted EPS was primarily due to higher debt outstanding, as well as interest charges on North Carolina fuel overcollections at Duke Energy Progress and lower debt returns driven by the CR3 regulatory asset debt return ending in June 2016 upon securitization at Duke Energy Florida.

PART I

Income Tax Expense. The variance was primarily due to a decrease in pretax income. The effective tax rates for the nine months ended September 30, 2017, and 2016 were 31.9 percent and 34.7 percent, respectively. The decrease in the effective tax rate was primarily due to the favorable impact of research credits and lower North Carolina corporate tax rates.
Matters Impacting Future Results
An order from regulatory authorities disallowing recovery of costs related to closure of ash impoundments could have an adverse impact on Progress Energy’s financial position, results of operations and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters” and Note 9 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016, "Asset Retirement Obligations," for additional information.
On May 18, 2016, the NCDEQ issued proposed risk classifications for all coal ash surface impoundments in North Carolina. All ash impoundments not previously designated as high priority by the Coal Ash Act were designated as intermediate risk. Certain impoundments classified as intermediate risk, however, may be reassessed in the future as low risk pursuant to legislation signed by the former North Carolina governor on July 14, 2016. Progress Energy's estimated AROs related to the closure of North Carolina ash impoundments are based upon the mandated closure method or a probability weighting of potential closure methods for the impoundments that may be reassessed to low risk. As the final risk ranking classifications in North Carolina are delineated, final closure plans and corrective action measures are developed and approved for each site, the closure work progresses, and the closure method scope and remedial action methods are determined, the complexity of work and the amount of coal combustion material could be different than originally estimated and, therefore, could materially impact Progress Energy's financial position. See Note 9 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016, "Asset Retirement Obligations," for additional information.
Duke Energy Progress is a party to multiple lawsuits and subject to fines and other penalties related to operations at certain North Carolina facilities with ash basins. The outcome of these lawsuits, fines and penalties could have an adverse impact on Progress Energy’s financial position, results of operations and cash flows. See Note 5 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies,” for additional information.
In the fourth quarter of 2016, Hurricane Matthew caused historic flooding, extensive damage and widespread power outages within the Duke Energy Progress service territory. Duke Energy Progress filed a petition with the NCUC requesting an accounting order to defer incremental operation and maintenance and capital costs incurred in response to Hurricane Matthew and other significant 2016 storms. Current estimated incremental costs are approximately $116 million. The NCUC will address this request in Duke Energy Progress' currently pending rate case. A final order from the NCUC that disallows the deferral and future recovery of all or a significant portion of the incremental storm restoration costs incurred could result in an adverse impact on Progress Energy's financial position, results of operations and cash flows.
Duke Energy Progress filed a general rate case with the NCUC on June 1, 2017. Duke Energy Progress will seek to recover costs of complying with CCR regulations and the Coal Ash Act, as well as costs of capital investments in generation, transmission and distribution systems and any increase in expenditures subsequent to previous rate cases. Progress Energy's earnings could be adversely impacted if the rate increase is delayed or denied by the NCUC.
On August 29, 2017, Duke Energy Florida filed the 2017 Settlement with the FPSC. The 2017 Settlement was approved by the FPSC on October 25, 2017.  See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information about the 2017 Settlement.  In accordance with the 2017 Settlement, Duke Energy Florida will not seek recovery of any costs associated with the ongoing Westinghouse contract litigation, which is currently being appealed.  See Note 5 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies” for additional information about the litigation.  An unfavorable appeals ruling on that matter could have an adverse impact on Duke Energy Florida’s financial position, results of operations and cash flows. 

In September 2017, Hurricane Irma caused extensive damage and widespread power outages within the Duke Energy Florida service territory. Duke Energy Florida has not completed the final accumulation of storm restoration costs incurred. Total storm restoration costs, including capital, are currently estimated at approximately $500 million. In accordance with a regulatory order with FPSC, certain incremental operation and maintenance storm restoration costs are classified as a regulatory asset recognizing the probable recoverability of these costs under FPSC's storm rule. The Company will make a petition by the end of 2017 to FPSC for recovery of costs. Duke Energy Florida's cash flows could be impacted by the timing of cost recovery. See Note 4, "Regulatory Matters," to the Condensed Consolidated Financial Statements for additional information.

PART I

DUKE ENERGY PROGRESS
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the nine months ended September 30, 2017, and 2016 and the Annual Report on Form 10-K for the year ended December 31, 2016.
Results of Operations
 Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
Operating Revenues$3,878
 $4,103
 $(225)
Operating Expenses     
Fuel used in electric generation and purchased power1,214
 1,441
 (227)
Operation, maintenance and other1,032
 1,067
 (35)
Depreciation and amortization536
 526
 10
Property and other taxes120
 119
 1
Impairment charges
 1
 (1)
Total operating expenses2,902
 3,154
 (252)
Gains on Sales of Other Assets and Other, net3
 2
 1
Operating Income979
 951
 28
Other Income and Expenses47
 47
 
Interest Expense217
 188
 29
Income Before Income Taxes809
 810
 (1)
Income Tax Expense262
 271
 (9)
Net Income$547
 $539
 $8
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales, and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior period2017
Residential sales(4.6)%
General service sales(2.0)%
Industrial sales0.5 %
Wholesale power sales(5.6)%
Joint dispatch sales(35.3)%
Total sales(7.4)%
Average number of customers1.3 %
Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Operating Revenues. The variance was driven primarily by:
a $242 million decrease in fuel revenues due to lower retail sales and changes in generation mix; and
a $73 million decrease in retail sales, net of fuel revenues, due to less favorable weather in the current year.
Partially offset by:
a $41 million increase in rider revenues primarily due to energy efficiency programs;
a $29 million increase in retail pricing due to the Duke Energy Progress South Carolina rate case;
a $21 million increase in wholesale power revenues, net of fuel, primarily due to higher peak demand.
Operating Expenses. The variance was driven primarily by:
a $227 million decrease in fuel expense primarily due to lower retail sales and changes in generation mix; and
a $35 million decrease in operation, maintenance and other expense primarily due to lower storm restoration costs.
Interest Expense. The increase was primarily due to higher debt outstanding, as well as interest charges on North Carolina fuel overcollections.
Income Tax Expense. The variance was primarily due to the favorable impact of research credits and lower North Carolina corporate tax rates. The effective tax rates for the nine months ended September 30, 2017, and 2016 were 32.4 percent and 33.5 percent, respectively. The decrease in the effective tax rate was primarily due to the favorable impact of research credits and lower North Carolina corporate tax rates.

PART I

Matters Impacting Future Results
An order from regulatory authorities disallowing recovery of costs related to closure of ash impoundments could have an adverse impact on Duke Energy Progress’ financial position, results of operations and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters” and Note 9 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016, "Asset Retirement Obligations," for additional information.
On May 18, 2016, the NCDEQ issued proposed risk classifications for all coal ash surface impoundments in North Carolina. All ash impoundments not previously designated as high priority by the Coal Ash Act were designated as intermediate risk. Certain impoundments classified as intermediate risk, however, may be reassessed in the future as low risk pursuant to legislation signed by the former North Carolina governor on July 14, 2016. Duke Energy Progress' estimated AROs related to the closure of North Carolina ash impoundments are based upon the mandated closure method or a probability weighting of potential closure methods for the impoundments that may be reassessed to low risk. As the final risk ranking classifications in North Carolina are delineated, final closure plans and corrective action measures are developed and approved for each site, the closure work progresses, and the closure method scope and remedial action methods are determined, the complexity of work and the amount of coal combustion material could be different than originally estimated and, therefore, could materially impact Duke Energy Progress' financial position. See Note 9 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016, "Asset Retirement Obligations," for additional information.
Duke Energy Progress is a party to multiple lawsuits and subject to fines and other penalties related to operations at certain North Carolina facilities with ash basins. The outcome of these lawsuits, fines and penalties could have an adverse impact on Duke Energy Progress’ financial position, results of operations and cash flows. See Note 5 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies,” for additional information.
In the fourth quarter of 2016, Hurricane Matthew caused historic flooding, extensive damage and widespread power outages within the Duke Energy Progress service territory. Duke Energy Progress filed a petition with the NCUC requesting an accounting order to defer incremental operation and maintenance and capital costs incurred in response to Hurricane Matthew and other significant 2016 storms. Current estimated incremental costs are approximately $116 million. The NCUC will address this request in Duke Energy Progress' currently pending rate case. A final order from the NCUC that disallows the deferral and future recovery of all or a significant portion of the incremental storm restoration costs incurred could result in an adverse impact on Duke Energy Progress' financial position, results of operations and cash flows.
Duke Energy Progress filed a general rate case with the NCUC on June 1, 2017. Duke Energy Progress will seek to recover costs of complying with CCR regulations and the Coal Ash Act, as well as costs of capital investments in generation, transmission and distribution systems and any increase in expenditures subsequent to previous rate cases. Duke Energy Progress' earnings could be adversely impacted if the rate increase is delayed or denied by the NCUC.

PART I

DUKE ENERGY FLORIDA
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the nine months ended September 30, 2017, and 2016 and the Annual Report on Form 10-K for the year ended December 31, 2016.
Results of Operations
 Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
Operating Revenues$3,551
 $3,538
 $13
Operating Expenses     
Fuel used in electric generation and purchased power1,374
 1,391
 (17)
Operation, maintenance and other610
 623
 (13)
Depreciation and amortization423
 378
 45
Property and other taxes265
 256
 9
Impairment charges137
 4
 133
Total operating expenses2,809
 2,652
 157
Operating Income742
 886
 (144)
Other Income and Expenses45
 30
 15
Interest Expense211
 143
 68
Income Before Income Taxes576
 773
 (197)
Income Tax Expense208
 286
 (78)
Net Income$368
 $487
 $(119)
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Wholesale power sales include both billed and unbilled sales. Total sales includes billed and unbilled retail sales, and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior period2017
Residential sales(3.6)%
General service sales(1.3)%
Industrial sales(1.4)%
Wholesale and other18.5 %
Total sales(1.2)%
Average number of customers1.5 %
Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Operating Revenues. The variance was driven primarily by:
a $52 million increase in retail pricing primarily due to the base rate adjustment for the Osprey acquisition and the completion of the Hines Energy Complex Chiller Uprate Project;
a $38 million increase in rider revenues primarily due to nuclear asset securitization beginning in July 2016 and extended power uprate project revenues beginning in 2017; and
a $30 million increase in weather-normal sales volumes to retail customers in the current year.
Partially offset by:
a $59 million decrease in retail sales, net of fuel revenues, due to less favorable weather in the current year, including lost revenues related to Hurricane Irma;
a $31 million decrease in wholesale power revenues primarily due to contracts that expired in the prior year; and
a $14 million decrease in fuel and capacity revenues primarily due to a decrease in capacity rates to retail customers, partially offset by an increase in fuel rates to retail customers.
Operating Expenses. The variance was driven primarily by:
a $133 million increase in impairment charges primarily due to the write-off of remaining unrecovered Levy Nuclear Project costs in the current year; and
a $45 million increase in depreciation and amortization expense primarily due to nuclear regulatory asset amortization, as well as additional plant in service.

PART I

Partially offset by:
a $17 million decrease in fuel expense primarily due to decreased purchased power and lower capacity costs, partially offset by higher generation and deferred fuel costs; and
a $13 million decrease in operation, maintenance and other expense primarily due to lower planned outage costs and lower severance expenses, partially offset by higher storm restoration costs in the current year.
Other Income and Expenses. The variance was driven by higher AFUDC equity.
Interest Expense. The variance was primarily due to higher debt outstanding and lower debt returns driven by the CR3 regulatory asset debt return ending in June 2016 upon securitization.
Income Tax Expense. The variance was primarily due to a decrease in pretax income. The effective tax rates for the nine months ended September 30, 2017, and 2016 were 36.1 percent and 37.0 percent, respectively.
Matters Impacting Future Results
In September 2017, Hurricane Irma caused extensive damage and widespread power outages within the Duke Energy Florida service territory. Duke Energy Florida has not completed the final accumulation of storm restoration costs incurred. Total storm restoration costs, including capital, are currently estimated at approximately $500 million. In accordance with a regulatory order with FPSC, certain incremental operation and maintenance storm restoration costs are classified as a regulatory asset recognizing the probable recoverability of these costs under FPSC's storm rule. The Company will make a petition by the end of 2017 to FPSC for recovery of costs. Duke Energy Florida's cash flows could be impacted by the timing of cost recovery. See Note 4, "Regulatory Matters," to the Condensed Consolidated Financial Statements for additional information.
On August 29, 2017, Duke Energy Florida filed the 2017 Settlement with the FPSC. The 2017 Settlement was approved by the FPSC on October 25, 2017. See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information about the 2017 Settlement. In accordance with the 2017 Settlement, Duke Energy Florida will not seek recovery of any costs associated with the ongoing Westinghouse contract litigation, which is currently being appealed. See Note 5 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies” for additional information about the litigation. An unfavorable appeals ruling on that matter could have an adverse impact on Duke Energy Florida’s financial position, results of operations and cash flows. 

PART I

DUKE ENERGY OHIO
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the nine months ended September 30, 2017, and 2016 and the Annual Report on Form 10-K for the year ended December 31, 2016.
Results of Operations
 Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
Operating Revenues     
Regulated electric$1,036
 $1,053
 $(17)
Regulated natural gas360
 358
 2
Nonregulated electric and other30
 22
 8
Total operating revenues1,426
 1,433
 (7)
Operating Expenses     
Fuel used in electric generation and purchased power – regulated283
 340
 (57)
Fuel used in electric generation and purchased power – nonregulated42
 37
 5
Cost of natural gas69
 64
 5
Operation, maintenance and other385
 367
 18
Depreciation and amortization193
 175
 18
Property and other taxes204
 195
 9
Impairment charges1
 
 1
Total operating expenses1,177
 1,178
 (1)
Gains on Sales of Other Assets and Other, net1
 2
 (1)
Operating Income250
 257
 (7)
Other Income and Expenses12
 6
 6
Interest Expense67
 63
 4
Income from Continuing Operations Before Income Taxes195
 200
 (5)
Income Tax Expense from Continuing Operations67
 65
 2
Income from Continuing Operations128
 135
 (7)
(Loss) Income from Discontinued Operations, net of tax(1) 36
 (37)
Net Income$127
 $171
 $(44)
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior year2017
Residential sales(5.8)%
General service sales(3.2)%
Industrial sales(1.3)%
Wholesale power sales127.3 %
Total sales(2.5)%
Average number of customers0.8 %
Nine Months Ended September 30, 2017, as Compared to September 30, 2016
Operating Revenues. The variance was driven primarily by:
a $59 million decrease in fuel revenues primarily due to lower electric fuel prices and sales volumes, partially offset by higher costs passed through to natural gas customers due to higher natural gas prices;operation and
a $16 million decrease in electric retail sales, net of fuel revenues, due to less favorable weather in the current year.
Partially offset by:
a $40 million increase in rider revenues primarily due to energy efficiency programs and a rate increase for the distribution capital investment rider, partially offset by a decrease in the percentage of income payment plan rider due to a rate decrease;
a $17 million increase in PJM Interconnection, LLC (PJM) transmission revenues; and
a $9 million increase in other revenues related to OVEC.

PART I

Operating Expenses. The variance was driven primarily by:
an $18 million increase in operation, maintenance and other expense, due to higher energy efficiency programincluding storm costs, and higher transmission and distribution operations costs;lower returns on benefit trusts.
an $18 million increase in depreciation and amortization expense due to additional plant in service and a true up related to Smart Grid assets in the prior year;
a $9 million increase in property and other taxes primarily due to higher property taxes;
a $5 million increase in nonregulated fuel expenses related to OVEC; and
a $5 million increase in natural gas costs due to higher natural gas prices.
Partially offset by:
a $57 million decrease in fuel expense driven by lower sales volumes and lower electric fuel costs.
Other Income and Expenses. The increase was primarily driven by higher AFUDC equity.
Interest Expense. The increase was primarily driven by interest related to new debt issued in June 2016.
Discontinued Operations, Net of Tax. The variance was driven by a prior year income tax benefit resulting from immaterial out of period deferred tax liability adjustments related to the Midwest Generation Disposal Group.
Matters Impacting Future Results
An order from regulatory authorities disallowing recovery of costs related to closure of ash basins could have an adverse impact on Duke Energy Ohio's financial position, results of operations and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters” and Note 9 in Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2016, "Asset Retirement Obligations," for additional information.
Duke Energy Ohio’s nonregulated Beckjord station, a facility retired during 2014, is not subject to the EPA rule related to the disposal of CCR from electric utilities. However, if costs are incurred as a result of environmental regulations or to mitigate risk associated with on-site storage of coal ash at the facility, the costs could have an adverse impact on Duke Energy Ohio's financial position, results of operations and cash flows.
Duke Energy Ohio has a 9 percent ownership interest in OVEC, which owns 2,256 MW of coal-fired generation capacity. As a counterparty to an ICPA, Duke Energy Ohio has a contractual arrangement to receive entitlements to capacity and energy from OVEC’s power plants through June 2040 commensurate with its power participation ratio, which is equivalent to Duke Energy Ohio’s ownership interest. Costs, including fuel, operating expenses, fixed costs, debt amortization and interest expense, are allocated to counterparties to the ICPA, including Duke Energy Ohio, based on their power participation ratio. The value of the ICPA is subject to variability due to fluctuations in power prices and changes in OVEC’s costs of business. Deterioration in the credit quality or bankruptcy of one or more parties to the ICPA could increase the costs of OVEC. In addition, certain proposed environmental rulemaking costs could result in future increased cost allocations.
On March 2, 2017, Duke Energy Ohio filed an electric distribution base rate application with the PUCO to address recovery of electric distribution system capital investments and any increase in expenditures subsequent to previous rate cases. The application also includes requests to continue certain current riders and establish new riders related to LED Outdoor Lighting Service and regulatory mandates. Duke Energy Ohio's earnings could be adversely impacted if the rate case and requested riders are delayed or denied by the PUCO. See Note 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters," for additional information.
On September 1, 2017, Duke Energy Kentucky filed a base rate case with the KPSC to recover costs of capital investments in generation, transmission and distribution systems and to recover other incremental expenses since its last rate case filed in 2006. Duke Energy Kentucky’s earnings could be adversely impacted if the rate increase is delayed or denied by the KPSC.

PART I81


DUKE ENERGY INDIANA
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the nine months ended September 30, 2017, and 2016 and the Annual Report on Form 10-K for the year ended December 31, 2016.
Results of Operations
 Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
Operating Revenues$2,302
 $2,225
 $77
Operating Expenses     
Fuel used in electric generation and purchased power744
 690
 54
Operation, maintenance and other541
 526
 15
Depreciation and amortization336
 345
 (9)
Property and other taxes56
 67
 (11)
Impairment charges
 8
 (8)
Total operating expenses1,677
 1,636
 41
Gains on Sales of Other Assets and Other, net1
 
 1
Operating Income626
 589
 37
Other Income and Expenses27
 15
 12
Interest Expense132
 136
 (4)
Income Before Income Taxes521
 468
 53
Income Tax Expense203
 159
 44
Net Income$318
 $309
 $9
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior yearMD&A2017
Residential sales(5.5)%
General service sales(2.5)%
Industrial sales0.1 %
Wholesale power sales(19.8)%
Total sales(6.2)%
Average number of customers0.8 %DUKE ENERGY
Nine Months Ended September 30, 2017, as Compared
The following table reconciles non-GAAP measures, including adjusted EPS, to September 30, 2016their most directly comparable GAAP measures.
Operating Revenues.The variance was driven primarily by:
 Three Months Ended March 31,
20222021
(in millions, except per share amounts)EarningsEPS EarningsEPS
GAAP Reported Earnings/GAAP Reported EPS$818 $1.08 $953 $1.25 
Adjustments:
Regulatory Matters(a)
173 0.22 — — 
Gas Pipeline Investments(b)
  0.01 
Adjusted Earnings/Adjusted EPS$991 $1.30 $958 $1.26 
a $64(a)Net of tax benefit of $62 million increaseand $22 million in rider revenues related to the Edwardsport IGCC plant and energy efficiency programs; andnoncontrolling interests.
a $47 million increase in fuel revenues primarily due to higher purchased power costs passed through to customers and higher financial transmission right (FTR) revenues.(b)Net of tax benefit of $1 million.
Partially offset by:
an $18 million decrease in retail sales due to less favorable weather in the current year; and
a $15 million decrease in wholesale power revenues, net of fuel, primarily due to a decrease in demand rates and contracts that expired in the current year.
Operating Expenses.The variance was driven primarily by:
a $54 million increase in fuel and purchased power expense, primarily due to higher purchased power volumes and prices; and
a $15 million increase in operation, maintenance and other expense due to growth in energy efficiency programs and higher transmission costs.
Partially offset by:
an $11 million decrease in property and other taxes primarily due to utilization of ITCs;
a $9 million decrease in depreciation and amortization primarily due to the 2017 deferral of certain asset retirement obligations and the completion of the amortization of a regulated asset for costs associated with the termination of a gasification services agreement in 2000, partially offset by new IGCC rider rates that result in a lower deferral amount and higher depreciation due to additional plant in service; and

PART I

an $8 million decrease in impairments and other charges primarily due to the early retirement of certain metering equipment in the prior year.
Other Income and Expenses. The increase was primarily driven by higher AFUDC equity.
Income Tax Expense. The variance was primarily due to an increase in pretax income. The effective tax rates for the nine months ended September 30, 2017, and 2016 were 39.0 percent and 34.0 percent, respectively. The increase in the effective tax rate was primarily due to an immaterial out of period adjustment in the prior year related to deferred tax balances associated with property, plant and equipment.
Matters Impacting Future Results
On April 17, 2015,The matters discussed herein could materially impact the EPA publishedfuture operating results, financial condition and cash flows of the Duke Energy Registrants and Business Segments.
Regulatory Matters
Coal Ash Costs
Future spending of coal ash costs, including amounts recorded for depreciation and liability accretion, is expected to continue to be deferred and recovered in future rate cases or rider filings. The majority of spend is expected to occur over the Federal Register a rule to regulate the disposal of CCR from electric utilities as solid waste. next 15-20 years.
80

MD&AMATTERS IMPACTING FUTURE RESULTS

Duke Energy Indiana has interpreted the CCR rule to identify the coal ash basin sites impacted and has assessed the amounts of coal ash subject to the rule and a method of compliance. In 2020, the Hoosier Environmental Council filed a petition challenging the Indiana Department of Environmental Management's (IDEM) partial approval of five of Duke Energy Indiana's interpretationIndiana’s ash pond site closure plans at Gallagher Station. The petition does not challenge the other basin closures approved by IDEM at other Indiana stations. Interpretation of the requirements of the CCR rule is subject to potentialfurther legal challenges and further regulatory approvals, which could result in additional ash basin closure requirements, higher costs of compliance and greater AROs. Additionally, Duke Energy Indiana has retired facilities that are not subject to the CCR rule. Duke Energy Indiana may incur costs at these facilities to comply with environmental regulations or to mitigate risks associated with on-site storage of coal ash. An order from regulatory authorities disallowing recovery of costs related to closure of ash basins could have an adverse impact onIn January 2022, Duke Energy Indiana's financial position, resultsIndiana received a letter from the EPA regarding interpretation of operations and cash flows.the CCR rule. See Note 4 to the Condensed Consolidated Financial Statements, “Regulatory Matters,”"Commitments and Contingencies" for additionalmore information.
The Indiana Utility Regulatory Commission (IURC) approved a settlement agreement between Commercial Renewables
Duke Energy Indianacontinues to monitor recoverability of renewable merchant plants located in the ERCOT West market and multiple parties that resolves all disputes, claimsin the PJM West market, due to fluctuating market pricing and issues fromlong-term forecasted energy prices. Based on the IURC proceedings related to post-commercial operating performance and recoverymost recent recoverability test, the carrying value approximated the aggregate estimated future undiscounted cash flows for the assets under review. A continued decline in energy market pricing or other factors unfavorably impacting the economics would likely result in a future impairment. Impairment of ongoing operating and capital costs at the Edwardsport IGCC generating facility. The settlement agreement imposed a cost cap for retail recoverable operations and maintenance costs through 2017. An inability to manage operating coststhese assets could result in accordance with caps imposed pursuantadverse impacts. For additional information, see Note 2 to the agreement could have an adverse impact onCondensed Consolidated Financial Statements, "Business Segments."
In February 2021, a severe winter storm impacted certain Commercial Renewables assets in Texas. Extreme weather conditions limited the ability for these solar and wind facilities to generate and sell electricity into the ERCOT market. Duke Energy Indiana'shas been named in multiple lawsuits arising out of this winter storm. For more information, see Note 4 to the Condensed Consolidated Financial Statements, "Commitments and Contingencies."
Supply Chain
Duke Energy is monitoring supply chain disruptions, including the cost and availability of key components of planned generating facilities, which could impact the timing of in-service or economics of renewable projects and may result in adverse impacts on operating results. The Company is also monitoring the impacts on future financial position, results and clean energy goals due to the availability of operationssolar panels as a result of the U.S. Department of Commerce investigation into the potential circumvention of anti-dumping and cash flows.

countervailing duties by certain Chinese companies.
PART I

Results of Operations
PIEDMONTNon-GAAP Measures
Management’s Discussion and Analysis includes financial information prepared in accordance with GAAP in the U.S., as well as certain non-GAAP financial measures such as adjusted earnings and adjusted EPS discussed below. Generally, a non-GAAP financial measure is a numerical measure of financial performance, financial position or cash flows that excludes (or includes) amounts that are included in (or excluded from) the most directly comparable measure calculated and presented in accordance with GAAP. Non-GAAP financial measures should be readviewed as a supplement to, and not a substitute for, financial measures presented in conjunctionaccordance with GAAP. Non-GAAP measures presented may not be comparable to similarly titled measures used by other companies because other companies may not calculate the measures in the same manner.
Management evaluates financial performance in part based on non-GAAP financial measures, including adjusted earnings and adjusted EPS. Adjusted earnings and adjusted EPS represent income from continuing operations available to Duke Energy Corporation common stockholders in dollar and per share amounts, adjusted for the dollar and per share impact of special items. As discussed below, special items represent certain charges and credits, which management believes are not indicative of Duke Energy's ongoing performance. The most directly comparable GAAP measures for adjusted earnings and adjusted EPS are GAAP Reported Earnings (Loss) and GAAP Reported Earnings (Loss) Per Share, respectively.
Special items included in the periods presented below include the following, which management believes do not reflect ongoing costs:
Regulatory Matters represents the net impact of charges related to the 2022 Indiana Supreme Court ruling on coal ash.
Gas Pipeline Investments represents additional exit obligations related to ACP.
Three Months Ended March 31, 2022, as compared to March 31, 2021
GAAP reported EPS was $1.08 for the first quarter of 2022 compared to a $1.25 in the first quarter of 2021. In addition to the drivers below, GAAP reported EPS decreased primarily due to charges related to the Indiana Supreme Court ruling on coal ash.
As discussed above, management also evaluates financial performance based on adjusted EPS. Duke Energy’s first quarter 2022 adjusted EPS was $1.30 compared to $1.26 for the first quarter of 2021. The increase in adjusted EPS was primarily due to higher volumes, partially offset by higher operation and maintenance expense, including storm costs, and lower returns on benefit trusts.
81

MD&ADUKE ENERGY

The following table reconciles non-GAAP measures, including adjusted EPS, to their most directly comparable GAAP measures.
 Three Months Ended March 31,
20222021
(in millions, except per share amounts)EarningsEPS EarningsEPS
GAAP Reported Earnings/GAAP Reported EPS$818 $1.08 $953 $1.25 
Adjustments:
Regulatory Matters(a)
173 0.22 — — 
Gas Pipeline Investments(b)
  0.01 
Adjusted Earnings/Adjusted EPS$991 $1.30 $958 $1.26 
(a)Net of tax benefit of $62 million and $22 million in noncontrolling interests.
(b)Net of tax benefit of $1 million.
SEGMENT RESULTS
The remaining information presented in this discussion of results of operations is on a GAAP basis. Management evaluates segment performance based on segment income. Segment income is defined as income from continuing operations net of income attributable to noncontrolling interests and preferred stock dividends. Segment income includes intercompany revenues and expenses that are eliminated in the Condensed Consolidated Financial Statements.
Duke Energy's segment structure includes the following segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables. The remainder of Duke Energy’s operations is presented as Other. See Note 2 to the Condensed Consolidated Financial Statements, “Business Segments,” for additional information on Duke Energy’s segment structure.
Electric Utilities and NotesInfrastructure
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$6,002 $5,281 $721 
Operating Expenses
Fuel used in electric generation and purchased power1,837 1,462 375 
Operation, maintenance and other1,426 1,282 144 
Depreciation and amortization1,131 1,057 74 
Property and other taxes337 311 26 
Impairment of assets and other charges214 — 214 
Total operating expenses4,945 4,112 833 
Gains on Sales of Other Assets and Other, net2 — 
Operating Income1,059 1,169 (110)
Other Income and Expenses, net114 104 10 
Interest Expense376 340 36 
Income Before Income Taxes797 933 (136)
Income Tax Expense83 113 (30)
Add: Loss Attributable to Noncontrolling Interest9 — 
Segment Income$723 $820 $(97)
Duke Energy Carolinas GWh sales22,549 21,962 587 
Duke Energy Progress GWh sales17,969 16,537 1,432 
Duke Energy Florida GWh sales9,902 8,554 1,348 
Duke Energy Ohio GWh sales5,997 6,004 (7)
Duke Energy Indiana GWh sales7,950 7,726 224 
Total Electric Utilities and Infrastructure GWh sales64,367 60,783 3,584 
Net proportional MW capacity in operation49,340 50,026 (686)
Three Months Ended March 31, 2022, as compared to March 31, 2021
Electric Utilities and Infrastructure’s lower segment income is due to the Indiana Supreme Court ruling on recovery of certain coal ash costs and higher storm costs, partially offset by higher retail sales volumes. The following is a detailed discussion of the variance drivers by line item.
82

MD&ASEGMENT RESULTS — ELECTRIC UTILITIES AND INFRASTRUCTURE

Operating Revenues. The variance was driven primarily by:
a $266 million increase in fuel revenues primarily due to higher fuel prices and retail sales volumes;
a $243 million increase in weather-normal retail sales volumes;
a $126 million increase in retail base rate pricing due to general rate cases in North Carolina, net of rider impacts as well as multiyear rate adjustments in Florida; and
a $46 million increase in wholesale revenues primarily due to higher capacity volumes.
Partially offset by
a $46 million decrease due to the Indiana Supreme Court ruling on recovery of certain coal ash costs.
Operating Expenses. The variance was driven primarily by:
a $375 million increase in fuel used in electric generation and purchased power due to higher fuel prices and volumes from customer demand;
a $214 million increase in impairment of assets and other charges primarily due to the Indiana Supreme Court ruling on recovery of certain coal ash costs;
a $144 million increase in operation, maintenance and other primarily driven by higher storm costs and higher outage and maintenance costs;
a $74 million increase in depreciation and amortization primarily due to higher plant in service and resolution of prior year rate cases, partially offset by lower depreciation related to the extension of the lives of nuclear facilities; and
a $26 million increase in property and other taxes primarily due to higher payroll taxes due to CARES Act employee retention credits in the prior year, increased property tax as well as higher revenue related taxes.
Interest Expense. The variance was primarily driven by interest expense on excess deferred tax liabilities.
Income Tax Expense.The decrease in tax expense was primarily due to a decrease in pretax income. The ETRs for the ninethree months ended September 30, 2017, Piedmont's Annual Report on Form 10-KMarch 31, 2022, and 2021, were 10.4% and 12.1%, respectively. The decrease in the ETR was primarily due to the amortization of excess deferred taxes in relation to lower pretax income.
Gas Utilities and Infrastructure
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$1,032 $775 $257 
Operating Expenses
Cost of natural gas481 276 205 
Operation, maintenance and other182 102 80 
Depreciation and amortization79 68 11 
Property and other taxes41 35 
Total operating expenses783 481 302 
Operating Income249 294 (45)
Other Income and Expenses, Net17 17 — 
Interest Expense40 33 
Income Before Income Taxes226 278 (52)
Income Tax (Benefit) Expense(28)33 (61)
Segment Income$254 $245 $
Piedmont LDC throughput (dekatherms)180,187,101 149,626,582 30,560,519 
Duke Energy Midwest LDC throughput (Mcf)37,246,072 37,109,003 137,069 
Three Months Ended March 31, 2022, as compared to March 31, 2021
Gas Utilities and Infrastructure’s results were impacted primarily by margin growth. The following is a detailed discussion of the variance drivers by line item.
83

MD&ASEGMENT RESULTS — GAS UTILITIES AND INFRASTRUCTURE

Operating Revenues.The variance was driven primarily by:
a $205 million increase due to higher natural gas costs passed through to customers and increased off-system sales natural gas costs, partially offset by lower residential volumes;
a $35 million increase due to base rate increases;
a $7 million increase due to rider revenues related to Ohio Capital Expenditure Program (CEP); and
a $6 million increase due to customer growth.
Partially offset by:
a $15 million decrease due to the MGP settlement.
Operating Expenses.The variance was driven primarily by:
a $205 million increase in cost of natural gas due to higher natural gas costs passed through to customers and increased off-system sales natural gas costs, partially offset by lower residential volumes;
an $80 million increase in operation, maintenance and other primarily due to the MGP settlement; and
an $11 million increase in depreciation and amortization due to additional plant in service and lower CEP deferrals.
Income Tax Benefit. The decrease in tax expense was primarily due to an increase in the amortization of excess deferred taxes related to the Ohio MGP Settlement and a decrease in pretax income.The ETRs for the three months ended March 31, 2022, and 2021, were -12.4% and 11.9%, respectively. The decrease in the ETR was primarily due to an increase in the amortization of excess deferred taxes related to the Ohio MGP Settlement.
Commercial Renewables
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$121 $119 $
Operating Expenses
Operation, maintenance and other82 72 10 
Depreciation and amortization60 53 
Property and other taxes10 
Total operating expenses152 134 18 
Losses on Sales of Other Assets and Other, net(1)— (1)
Operating Loss(32)(15)(17)
Other Income and Expenses, net (25)25 
Interest Expense18 13 
Loss Before Income Taxes(50)(53)
Income Tax Benefit(33)(29)(4)
Add: Loss Attributable to Noncontrolling Interests28 51 (23)
Segment Income$11 $27 $(16)
Renewable plant production, GWh2,988 2,588 400 
Net proportional MW capacity in operation(a)
4,753 4,294 459 
(a)Certain projects are included in tax equity structures where investors have differing interests in the project's economic attributes. One hundred percent of the tax equity project's capacity is included in the table above.
Three Months Ended March 31, 2022, as compared to March 31, 2021
Commercial Renewables' results were unfavorable primarily driven by fewer project investments financed by tax equity being placed into service in the current year and higher operating expenses for projects placed in service since the prior year, offset by the impacts for losses experienced in the prior year from Texas Storm Uri.
Operating Expenses.The variance was primarily driven by a $14 million increase for higher operating expenses, depreciation, property tax expense, and other development costs from the growth of new projects and a $4 million increase for higher operating expenses attributed to maintenance and other operating expenses.
Other Income and Expenses, net. The increase was primarily due to $29 million of losses experienced in the prior year from Texas Storm Uri offset by approximately $5 million decrease in equity earnings.
Interest Expense. The increase is primarily due to a $4 million gain recorded in the prior year for an interest rate swap that did not qualify for hedge accounting.
84

MD&ASEGMENT RESULTS — COMMERCIAL RENEWABLES

Income Tax Benefit. The increase in the tax benefit was primarily due to a decrease in taxes associated with tax equity investments.
Loss Attributable to Noncontrolling Interests. The variance was driven by a $23 million decrease for fewer projects placed in service financed with tax equity in the current year and a $12 million net decrease in losses allocated to tax equity members from existing tax equity structures offset by a $12 million increase for losses experienced in the prior year from Texas Storm Uri.
Other
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$30 $26 $
Operating Expenses33 28 
Gains on Sales of Other Assets and Other, net1 — 
Operating Loss(2)(2)— 
Other Income and Expenses, net(6)21 (27)
Interest Expense159 151 
Loss Before Income Taxes(167)(132)(35)
Income Tax Benefit(36)(32)(4)
Less: Preferred Dividends39 39 — 
Net Loss$(170)$(139)$(31)
Three Months Ended March 31, 2022, as compared to March 31, 2021
The higher net loss was driven by lower return on investments and higher interest expense partially offset by higher equity earnings from the NMC investment.
Other Income and Expenses, net. The variance was primarily due to lower return on investments that fund certain employee benefit obligations partially offset by higher equity earnings from the NMC investment.
Interest Expense. The variance was primarily due to higher outstanding long-term debt.
Income Tax Benefit. The increase in the tax benefit was primarily due to an increase in pretax losses, partially offset by unfavorable tax impacts related to lower investment returns on certain employee benefit obligations. The ETRs for the three months ended OctoberMarch 31, 2016,2022, and 2021, were 21.6% and 24.2%, respectively. The decrease in the ETR was primarily due to unfavorable tax impacts related to lower investment returns on certain employee benefit obligations.
DUKE ENERGY CAROLINAS
Results of Operations
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$1,888 $1,716 $172 
Operating Expenses
Fuel used in electric generation and purchased power448 422 26 
Operation, maintenance and other512 441 71 
Depreciation and amortization379 359 20 
Property and other taxes93 83 10 
Impairment of assets and other charges3 — 
Total operating expenses1,435 1,305 130 
Operating Income453 411 42 
Other Income and Expenses, net55 48 
Interest Expense141 124 17 
Income Before Income Taxes367 335 32 
Income Tax Expense27 23 
Net Income$340 $312 $28 
85

MD&ADUKE ENERGY CAROLINAS

The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior year2022
Residential sales(3.6)%
General service sales4.2%
Industrial sales4.7%
Wholesale power sales(4.6)%
Joint dispatch sales(30.0)%
Total sales2.7%
Average number of customers2.0%
Three Months Ended March 31, 2022, as compared to March 31, 2021
Operating Revenues.The variance was driven primarily by:
a $99 million increase in weather-normal retail sales volumes;
a $31 million increase in fuel revenues due to higher prices and volumes in the current year; and
a $20 million increase due to higher pricing from the North Carolina retail rate case, net of a return of EDIT to customers.
Operating Expenses. The variance was driven primarily by:
a $71 million increase in operation, maintenance and other expense primarily due to higher storm restoration costs and higher outage and maintenance costs;
a $26 million increase in fuel used in electric generation and purchased power primarily due to higher natural gas prices and changes in the generation mix, partially offset by the recovery of fuel expenses and lower coal prices; and
a $20 million increase in depreciation and amortization primarily due to an increase in assets placed into service, and new depreciation rates associated with the North Carolina rate case, partially offset by the extension of the lives of nuclear facilities.
Interest Expense. The variance was driven by interest expense on excess deferred tax liabilities.
Income Tax Expense. The increase in tax expense was primarily due to an increase in pretax income, partially offset by amortization of excess deferred taxes.
PROGRESS ENERGY
Results of Operations
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$2,992 $2,505 $487 
Operating Expenses
Fuel used in electric generation and purchased power1,064 795 269 
Operation, maintenance and other645 601 44 
Depreciation and amortization536 485 51 
Property and other taxes152 142 10 
Total operating expenses2,397 2,023 374 
Gains on Sales of Other Assets and Other, net2 — 
Operating Income597 482 115 
Other Income and Expenses, net35 43 (8)
Interest Expense211 192 19 
Income Before Income Taxes421 333 88 
Income Tax Expense67 43 24 
Net Income354 290 64 
Three Months Ended March 31, 2022, as compared to March 31, 2021
Operating Revenues. The variance was driven primarily by:
a $237 million increase in fuel cost recovery driven by higher fuel prices and volumes in the current year;
a $124 million increase in weather-normal retail sales volumes;
86

MD&APROGRESS ENERGY

a $106 million increase in retail pricing due to the North Carolina rate case and base rate adjustments at Duke Energy Florida related to annual increases from the 2021 Settlement Agreement and the Form 10‑QT assolar base rate adjustment; and
a $32 million increase in wholesale revenues, net of December 31, 2016, forfuel, due to higher capacity volumes.
Partially offset by:
a $22 million decrease in capacity revenue primarily due to accelerated recovery of retired Crystal River coal units in 2021.
Operating Expenses. The variance was driven primarily by:
a $269 million increase in fuel used in electric generation and purchased power primarily due to higher demand and higher natural gas prices;
a $51 million increase in depreciation and amortization primarily due to increased rates at Duke Energy Florida and higher amortization of deferred coal ash and storm costs at Duke Energy Progress, partially offset by the transition period from November 1, 2016,extension of the lives at nuclear facilities at Duke Energy Progress; and
a $44 million increase in operation, maintenance and other expense primarily due to December 31, 2016.higher storm costs at Duke Energy Progress.
Interest Expense. The variance was driven primarily by interest expense on excess deferred tax liabilities and higher outstanding debt at Duke Energy Progress.
Income Tax Expense. The increase in tax expense was primarily due to an increase in pretax income and a decrease in the amortization of excess deferred taxes.
DUKE ENERGY PROGRESS
Results of Operations
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$1,632 $1,401 $231 
Operating Expenses
Fuel used in electric generation and purchased power574 436 138 
Operation, maintenance and other391 357 34 
Depreciation and amortization306 285 21 
Property and other taxes49 49 — 
Total operating expenses1,320 1,127 193 
Gains on Sales of Other Assets and Other, net1 — 
Operating Income313 274 39 
Other Income and Expenses, net22 24 (2)
Interest Expense85 69 16 
Income Before Income Taxes250 229 21 
Income Tax Expense35 19 16 
Net Income$215 $210 $
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior period2022
Residential sales(4.5)%
General service sales10.3%
Industrial sales27.8%
Wholesale power sales1.0%
Joint dispatch sales51.4%
Total sales8.7%
Average number of customers2.0%
Three Months Ended March 31, 2022, as compared to March 31, 2021
Operating Revenues. The variance was driven primarily by:
a $120 million increase in fuel cost recovery driven by higher fuel prices and volumes in the current year;
a $56 million increase due to higher pricing from the North Carolina retail rate case, net of a return of EDIT to customers;
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MD&ADUKE ENERGY PROGRESS

 Nine Months Ended September 30,
(in millions)2017
 2016
 Variance
Operating Revenues     
Regulated natural gas$877
 $815
 $62
Nonregulated natural gas and other7
 8
 (1)
Total operating revenues884
 823
 61
Operating Expenses     
Cost of natural gas333
 289
 44
Operation, maintenance and other226
 221
 5
Depreciation and amortization109
 103
 6
Property and other taxes38
 33
 5
Impairment charges7
 
 7
Total operating expenses713
 646
 67
Operating Income171
 177
 (6)
Equity in earnings of unconsolidated affiliates8
 25
 (17)
Other income and expenses, net(1) (1) 
Total other income and expenses7
 24
 (17)
Interest Expense59
 50
 9
Income Before Income Taxes119
 151
 (32)
Income Tax Expense43
 57
 (14)
Net Income$76
 $94
 $(18)
a $33 million increase in weather-normal retail sales volumes in the current year; and
a $16 million increase in wholesale revenues, net of fuel, due to higher capacity volumes.
Operating Expenses. The variance was driven primarily by:
a $138 million increase in fuel used in electric generation and purchased power primarily due to higher natural gas prices and changes in the generation mix, partially offset by the recovery of fuel expenses and lower coal prices;
a $34 million increase in operation, maintenance and other expense primarily due to higher storm costs; and
a $21 million increase in depreciation and amortization due to higher amortization of deferred coal ash costs and amortization related to deferred storm costs, partially offset by lower depreciation related to the extension of the lives of nuclear facilities.
Interest Expense. The variance was driven primarily by interest expense on excess deferred tax liabilities and higher outstanding debt.
Income Tax Expense. The increase in tax expense was primarily due to an increase in pretax income and the amortization of excess deferred taxes.
DUKE ENERGY FLORIDA
Results of Operations
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$1,355 $1,101 $254 
Operating Expenses
Fuel used in electric generation and purchased power490 359 131 
Operation, maintenance and other249 242 
Depreciation and amortization231 200 31 
Property and other taxes103 93 10 
Total operating expenses1,073 894 179 
Gains on Sales of Other Assets and Other, net1 — 
Operating Income283 207 76 
Other Income and Expenses, net15 18 (3)
Interest Expense84 80 
Income Before Income Taxes214 145 69 
Income Tax Expense43 28 15 
Net Income$171 $117 $54 
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Wholesale power sales include both billed and unbilled sales. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior period2022
Residential sales0.9%
General service sales4.0%
Industrial sales(0.9)%
Wholesale and other77.4%
Total sales15.8%
Average number of customers1.9%
Three Months Ended March 31, 2022, as compared to March 31, 2021
Operating Revenues. The variance was driven primarily by:
a $117 million increase in fuel revenue primarily due to higher retail sales volumes and higher fuel rate in current year in response to an increase in natural gas prices;
a $91 million increase in weather-normal retail sales volumes;
a $50 million increase in retail pricing due to base rate adjustments related to annual increases from the 2021 Settlement Agreement and the solar base rate adjustment; and
a $16 million increase in wholesale power revenues, net of fuel, primarily due to higher capacity revenues and bulk power sales.
Partially offset by:
a $22 million decrease in capacity revenue primarily due to accelerated recovery of the retired coal units Crystal River 1 and 2 in 2021.
88

MD&ADUKE ENERGY FLORIDA

Operating Expenses. The variance was driven primarily by:
a $131 million increase in fuel used in electric generation and purchased power primarily due to higher natural gas prices;
a $31 million increase in depreciation and amortization primarily due to an increase in depreciation rates starting in January 2022; and
a $10 million increase in property and other taxes primarily due to an increase in gross receipts taxes.
Income Tax Expense. The increase in tax expense was primarily due to an increase in pretax income.
DUKE ENERGY OHIO
Results of Operations
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues
Regulated electric$412 $363 $49 
Regulated natural gas226 169 57 
Total operating revenues638 532 106 
Operating Expenses
Fuel used in electric generation and purchased power127 82 45 
Cost of natural gas107 51 56 
Operation, maintenance and other178 108 70 
Depreciation and amortization80 74 
Property and other taxes101 92 
Total operating expenses593 407 186 
Operating Income45 125 (80)
Other Income and Expenses, net6 
Interest Expense30 25 
Income Before Income Taxes21 105 (84)
Income Tax (Benefit) Expense(56)14 (70)
Net Income$77 $91 $(14)
The following table shows the percent changes in GWh sales of electricity, dekatherms of natural gas delivered and average number of electric and natural gas customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
ElectricNatural Gas
Increase (Decrease) over prior year20222022
Residential sales(4.9)%1.5 %
General service sales(1.0)%1.0 %
Industrial sales(2.9)%(2.3)%
Wholesale electric power sales(19.0)%n/a
Other natural gas salesn/a(2.8)%
Total sales(0.1)%0.4 %
Average number of customers1.0 %0.8 %
Three Months Ended March 31, 2022, as compared to March 31, 2021
Operating Revenues. The variance was driven primarily by:
a $93 million increase in fuel related revenues primarily due to higher natural gas prices and increased volumes;
a $10 million increase in retail revenue riders, primarily due to the Ohio Capital Expenditure Program (CEP), Distribution Capital Investment Rider (DCI), excise tax riders as a result of increased revenue and Kentucky Gas Weather Normalization rider, partially offset by decreases in Kentucky Environmental Surcharge Mechanism and the Ohio Tax Cuts and Jobs Act rider;
a $9 million increase in weather-normal retail sales volumes;
a $6 million increase in revenues related to OVEC collections and OVEC sales into PJM; and
a $5 million increase in PJM transmission revenues as a result of increased capital spend.
Partially offset by:
a $15 million decrease due to the MGP settlement.
89

MD&ADUKE ENERGY OHIO

Operating Expenses. The variance was driven primarily by:
a $101 million increase in fuel expense primarily driven by higher retail prices and increased volumes for natural gas and purchased power;
a $70 million increase in operation, maintenance and other expense primarily due to the MGP settlement and higher storm costs;
a $9 million increase in property and other taxes primarily due to increased plant in service, higher kilowatt and natural gas distribution taxes due to increased usage and a lower Network Integration Transmission Service tax deferral; and
a $6 million increase in depreciation and amortization primarily driven by lower CEP deferrals and an increase in distribution plant in service.
Income Tax Benefit. The decrease in tax expense was primarily due to an increase in the amortization of excess deferred taxes related to the MGP Settlement and a decrease in pretax income.
DUKE ENERGY INDIANA
Results of Operations
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$822 $745 $77 
Operating Expenses
Fuel used in electric generation and purchased power319 217 102 
Operation, maintenance and other192 178 14 
Depreciation and amortization156 152 
Property and other taxes25 21 
Impairment of assets and other charges211 — 211 
Total operating expenses903 568 335 
Operating (Loss) Income(81)177 (258)
Other Income and Expenses, net10 
Interest Expense45 50 (5)
(Loss) Income Before Income Taxes(116)136 (252)
Income Tax (Benefit) Expense(37)24 (61)
Net (Loss) Income$(79)$112 $(191)
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior year2022
Residential sales(3.8)%
General service sales0.3%
Industrial sales(5.3)%
Wholesale power sales11.9%
Total sales2.9%
Average number of customers1.3%
Three Months Ended March 31, 2022, as compared to March 31, 2021
Operating Revenues.The variance was driven primarily by:
a $77 million increase in fuel revenues primarily due to higher fuel cost recovery driven by customer demand and fuel prices;
a $16 million increase in weather-normal retail sales volumes driven by higher nonresidential customer demand;
a $14 million increase in wholesale revenues primarily due to an increase in BPM sharing provision; and
a $9 million increase in retail sales due to favorable weather in the current year.
Partially offset by:
a $46 million decrease due to the Indiana Supreme Court ruling on recovery of certain coal ash costs.
90

MD&ADUKE ENERGY INDIANA

Operating Expenses.The variance was driven primarily by:
a $211 million increase in impairment of assets and other charges primarily due to the Indiana Supreme Court ruling on recovery of certain coal ash costs;
a $102 million increase in fuel used in electric generation and purchased power expense primarily due to higher purchased power expense and higher natural gas costs; and
a $14 million increase in operation, maintenance and other primarily due to higher storm costs and employee benefits.
Income Tax Benefit. The decrease in tax expense was primarily due to the change in pretax income from the coal ash impairment based on the Indiana Supreme Court Opinion.
PIEDMONT
Results of Operations
Three Months Ended March 31,
(in millions)20222021Variance
Operating Revenues$805 $606 $199 
Operating Expenses
Cost of natural gas374 225 149 
Operation, maintenance and other95 78 17 
Depreciation and amortization54 48 
Property and other taxes16 14 
Total operating expenses539 365 174 
Operating Income266 241 25 
Other Income and Expenses, net13 17 (4)
Interest Expense32 29 
Income Before Income Taxes247 229 18 
Income Tax Expense33 26 
Net Income$214 $203 $11 
The following table shows the percent changes in dekatherms delivered and average number of customers. The percentages for all throughput deliveries represent billed and unbilled sales. Amounts are not weather-normalized.
Increase (Decrease) over prior year2017
2022
Residential deliveries(19.2(4.7))%
Commercial deliveries(11.82.9)%
Industrial deliveries(4.31.1)%
Power generation deliveries(11.045.8)%
For resale(6.9(3.9))%
Total throughput deliveries(10.520.4)%
Secondary market volumes6.218.8%
Average number of customers1.6%
Piedmont's throughput was 334,781,316 dekatherms and 374,214,204 dekatherms for the nine months ended September 30, 2017, and 2016, respectively. Due to the margin decoupling mechanism in North Carolina and weather normalization adjustment (WNA) mechanisms in South Carolina and Tennessee, changes in throughput deliveries do not have a material impact on Piedmont's revenues or earnings. The margin decoupling mechanism adjusts for variations in residential and commercial use per customer, including those due to weather and conservation. The WNAweather normalization adjustment mechanisms mostly offset the impact of weather on bills rendered, but do not ensure full recovery of approved margin during periods when winter weather is significantly warmer or colder than normal.
NineThree Months Ended September 30, 2017,March 31, 2022, as Comparedcompared to September 30, 2016March 31, 2021
Operating Revenues.The variance was driven primarily by:
a $44$149 million increase due to higher natural gas costs passed through to customers primarilyand increased off-system sales natural gas costs, partially offset by lower residential volumes;
a $35 million increase due to higher natural gas prices;base rate increases; and
a $17$6 million increase in revenuesdue to residential and commercial customers, net ofcustomer growth.
Operating Expenses.The variance was driven primarily by:
a $149 million increase due to higher natural gas costs passed through to customers primarily due to Integrity Management Rider (IMR) rate adjustments and customer growth,increased off-system sales natural gas costs, partially offset by wholesale marketing revenue.lower residential volumes.

PART I

Operating Expenses.Income Tax Expense. The variance was driven by:
a $44 million increase in costs of natural gas primarily due to higher natural gas prices;
an $11 million increase in depreciationtax expense and property and franchise taxes due to additional plant in service; and
a $7 million increase due to an impairment of software resulting from planned accounting system and process integration in 2018.
Equity in Earnings of Unconsolidated Affiliates. The decrease was primarily due to equity earnings from the investmentan increase in SouthStar Energy Services, LLC (SouthStar) in the prior year. Piedmont sold its 15 percent membership interest in SouthStar on October 3, 2016.
Income Tax Expense. The variance was primarily due topretax income and a decrease in pretax income. The effective tax rates for the nine months ended September 30, 2017, and 2016 were 36.1 percent and 37.7 percent, respectively. The decrease in the effective tax rate was primarily due to favorable tax return true ups and lower North Carolina corporate tax rates.amortization of excess deferred taxes.

91
PART I


MD&ALIQUIDITY AND CAPITAL RESOURCES

LIQUIDITY AND CAPITAL RESOURCES
Sources and Uses of Cash
Duke Energy relies primarily upon cash flows from operations, debt and equity issuances and its existing cash and cash equivalents to fund its liquidity and capital requirements. Duke Energy’s capital requirements arise primarily from capital and investment expenditures, repaying long-term debt and paying dividends to shareholders. SeeAdditionally, due to its existing tax attributes, Duke Energy does not expect to be a significant federal cash taxpayer until around 2030. Duke Energy’s Annual Report on Form 10-K for the year ended December 31, 2016, for2021, included a summary and detailed discussion of projected primary sources and uses of cash for 20172022 to 2019.2024.
The Subsidiary Registrants generally maintain minimal cash balances and use short-term borrowings to meet their working capital needs and other cash requirements. The Subsidiary Registrants, excluding Progress Energy (Parent), support their short-term borrowing needs through participation withAs of March 31, 2022, Duke Energy had approximately $853 million of cash on hand and certain of$6.1 billion available under its other subsidiaries in a money pool arrangement. The companies with short-term funds may provide short-term loans to affiliates participating under this arrangement.
$9 billion Master Credit Facility.Duke Energy expects to have sufficient liquidity in the form of cash on hand, cash from operations and the Subsidiary Registrants, excluding Progress Energy (Parent), may also use short-term debt, including commercial paper and the money pool, as a bridgeavailable credit capacity to long-term debt financings. The levels of borrowing may vary significantly over the course of the year due to the timing of long-term debt financings and the impact of fluctuations in cash flows from operations. From time to time, Duke Energy’s current liabilities may exceed current assets resulting from the use of short-term debt as asupport its funding source to meet scheduled maturities of long-term debt, as well as cash needs, which can fluctuate due to the seasonality of its business.
CREDIT FACILITIES AND REGISTRATION STATEMENTS
needs. Refer to Note 65 to the Condensed Consolidated Financial Statements, "Debt and Credit Facilities," for further information regarding Duke Energy's debt issuances and maturities, and available credit facilities including the Master Credit Facility.
Shelf Registration
In September 2016, Duke Energy filed a registration statement (Form S-3) with the U.S. Securities and Exchange Commission (SEC). Under this Form S-3, which is uncapped, the Duke Energy Registrants, excluding Progress Energy, may issue debt and other securities in the future at amounts, prices and with terms to be determined at the time of future offerings. The registration statement also allows for the issuance of common stock by Duke Energy.
In January 2017, Duke Energy amended its Form S-3 to add Piedmont as a registrant and included in the amendment a prospectus for Piedmont under which it may issue debt securities in the same manner as other Duke Energy Registrants.
DEBT MATURITIES
Refer to Note 6 to the Condensed Consolidated Financial Statements, "Debt and Credit Facilities," for further information regarding significant components of Current Maturities of Long-Term Debt on the Condensed Consolidated Balance Sheets.
CASH FLOWS FROM OPERATING ACTIVITIES
Cash flows from operations of Electric Utilities and Infrastructure and Gas Utilities and Infrastructure are primarily driven by sales of electricity and natural gas, respectively, and costs of operations. These cash flows from operations are relatively stable and comprise a substantial portion of Duke Energy’s operating cash flows. Weather conditions, working capital and commodity price fluctuations, and unanticipated expenses including unplanned plant outages, storms, legal costs and related settlements can affect the timing and level of cash flows from operations. Duke Energy believes it has sufficient liquidity resources through the commercial paper markets, and ultimately the Master Credit and Revolving Facilities, to support these operations, including Hurricane Irma storm restoration costs. Cash flows from operations are subject to a number of other factors, including but not limited to regulatory constraints, economic trends and market volatility (see “Item 1A. Risk Factors,” in the Duke Energy Registrants’ Annual Reports on Form 10-K for additional information).
Restrictive Debt Covenants
The Duke Energy Registrants’ debt and credit agreements contain various financial and other covenants. The Master Credit Facility contains a covenant requiring the debt-to-total capitalization ratio not to exceed 65 percent for all borrowers except Piedmont. The debt-to-total capitalization ratio for Piedmont is not to exceed 70 percent. Failure to meet those covenants beyond applicable grace periods could result in accelerated due dates and/or termination of the agreements. As of September 30, 2017, each of the Duke Energy Registrants was in compliance with all covenants related to their debt agreements. In addition, some credit agreements may allow for acceleration of payments or termination of the agreements due to nonpayment or acceleration of other significant indebtedness of the borrower or some of its subsidiaries. None of the debt or credit agreements contain material adverse change clauses.
Credit Ratings
Credit ratings are intended to provide credit lenders a framework for comparing the credit quality of securities and are not a recommendation to buy, sell or hold. The Duke Energy Registrants’ credit ratings are dependent on the rating agencies’ assessments of their ability to meet their debt principal and interest obligations when they come due. If, as a result of market conditions or other factors, the Duke Energy Registrants are unable to maintain current balance sheet strength or if earnings and cash flow outlook materially deteriorate, credit ratings could be negatively impacted.
The Duke Energy Registrants each hold credit ratings by Moody’s Investors Service, Inc. (Moody’s) and Standard & Poor’s Rating Services (S&P). In April 2017, Fitch Ratings, Inc. (Fitch) withdrew credit ratings of the Subsidiary Registrants, with the exclusion of Piedmont, which was not previously rated by Fitch due to commercial reasons. Fitch will continue to provide credit ratings for Duke Energy Corporation.
In May 2017, Moody’s changed its rating outlook for Duke Energy Corporation to stable from negative and affirmed Duke Energy Corporation's credit ratings. In August 2017, Moody's changed its rating outlook for Duke Energy Ohio to positive from stable and affirmed Duke Energy Ohio's credit ratings.

PART I

Cash Flow Information
The following table summarizes Duke Energy’s cash flows.
 Nine Months EndedThree Months Ended
 September 30,March 31,
(in millions) 2017
 2016
(in millions)20222021
Cash flows provided by (used in):    Cash flows provided by (used in):
Operating activities $5,011
 $5,611
Operating activities$1,795 $2,088 
Investing activities (6,360) (5,555)Investing activities(2,699)(3,137)
Financing activities 1,239
 5,266
Financing activities1,404 1,185 
Changes in cash and cash equivalents included in assets held for sale 
 11
Net (decrease) increase in cash and cash equivalents (110) 5,333
Cash and cash equivalents at beginning of period 392
 383
Cash and cash equivalents at end of period $282
 $5,716
Net increase in cash, cash equivalents and restricted cashNet increase in cash, cash equivalents and restricted cash500 136 
Cash, cash equivalents and restricted cash at beginning of periodCash, cash equivalents and restricted cash at beginning of period520 556 
Cash, cash equivalents and restricted cash at end of periodCash, cash equivalents and restricted cash at end of period$1,020 $692 
OPERATING CASH FLOWS
The following table summarizes key components of Duke Energy’s operating cash flows.
 Nine Months EndedThree Months Ended
 September 30,March 31,
(in millions) 2017
 2016
(in millions)20222021Variance
Net income $2,361
 $2,392
Net income$820 $941 $(121)
Non-cash adjustments to net income 3,937
 3,585
Non-cash adjustments to net income1,582 1,446 136 
Contributions to qualified pension plans (8) 
Payments for asset retirement obligations (420) (443)Payments for asset retirement obligations(119)(114)(5)
Working capital (859) 77
Working capital(488)(185)(303)
Net cash provided by operating activities $5,011
 $5,611
Net cash provided by operating activities$1,795 $2,088 $(293)
The variance was primarily due to:
a $936 million decreaseto timing of accruals and payments in cash flows from working capital due to the timing of the payment of accruals, increased taxes accrued resulting from an increased effective tax rate, warmer winter weather and the absence of the International Disposal Group's operating cash flows.accounts.
Partially offset by:
a $321 million increase in net income after non-cash adjustments, primarily due to lower operation, maintenance and other expense and the additional Piedmont earnings contribution in the current year.
INVESTING CASH FLOWS
The following table summarizes key components of Duke Energy’s investing cash flows.
 Nine Months EndedThree Months Ended
 September 30,March 31,
(in millions) 2017
 2016
(in millions)20222021Variance
Capital, investment and acquisition expenditures $(6,211) $(5,450)Capital, investment and acquisition expenditures$(2,568)$(2,215)$(353)
Other investing items (149) (105)Other investing items(131)(922)791 
Net cash used in investing activities $(6,360) $(5,555)Net cash used in investing activities$(2,699)$(3,137)$438 
The variance wasrelates primarily due to:
a $761 million increaseto payment made in capital, investment2021 to fund ACP's outstanding debt and acquisitionlower overall investments in the Commercial Renewables segment, partially offset by increases in capital expenditures due to growthhigher overall investments in regulated generation investmentsthe Electric Utilities and natural gas infrastructure, partially offset by a reduction in Commercial Renewables capital expenditures.Infrastructure and Gas Utilities and Infrastructure segments.

92

MD&ALIQUIDITY AND CAPITAL RESOURCES
PART I

FINANCING CASH FLOWS
The following table summarizes key components of Duke Energy’s financing cash flows.
 Nine Months EndedThree Months Ended
 September 30,March 31,
(in millions) 2017
 2016
(in millions)20222021Variance
Issuances of long-term debt, net $3,675
 $7,659
Issuances of long-term debt, net$2,291 $532 $1,759 
Notes payable and commercial paper (619) (647)
Issuances of common stockIssuances of common stock (5)
Notes payable, commercial paper and other short-term borrowingsNotes payable, commercial paper and other short-term borrowings(44)1,187 (1,231)
Dividends paid (1,825) (1,731)Dividends paid(799)(783)(16)
Contributions from noncontrolling interestsContributions from noncontrolling interests23 303 (280)
Other financing items 8
 (15)Other financing items(67)(59)(8)
Net cash provided by financing activities $1,239
 $5,266
Net cash provided by financing activities$1,404 $1,185 $219 
The variance was primarily due to:
a $3,984 million$1.8 billion increase in net decrease inproceeds from issuances of long-term debt, driven principally by the prior year $3,750primarily due to timing of issuances and redemptions of long-term debt.
Partially offset by:
a $1.2 billion decrease in net borrowings from notes payable and commercial paper; and
a $280 million of senior unsecured notes used to fund a portion of the Piedmont acquisition, and prior year $1,294 million nuclear asset-recovery bonds, offset by a $1,047 million increasedecrease in current year redemptions; andcontributions from noncontrolling interests.
a $94 million current year increase in dividends paid.
Summary of Significant Debt Issuances
Refer to Note 6 to the Condensed Consolidated Financial Statements, "Debt and Credit Facilities," for further information regarding significant debt issuances.
OTHER MATTERS
Environmental Regulations
The Duke Energy Registrants are subject to federal, state and local regulations regarding air and water quality, hazardous and solid waste disposal, coal ash and other environmental matters. These regulations can be changed from time to time and result in new obligations of the Duke Energy Registrants.
The following sections outline various proposed and recently enacted regulations that may impact the Duke Energy Registrants. Refer to Note 43 to the Condensed Consolidated Financial Statements, "Regulatory Matters," for further information regarding potential plant retirements and regulatory filings related to the Duke Energy Registrants.
Coal Combustion Residuals
In April 2015, the EPA published a rule to regulate the disposal of CCR from electric utilities as solid waste. The federal regulation classifies CCR as nonhazardous waste and allows for beneficial use of CCR with some restrictions. The regulation applies to all new and existing landfills, new and existing surface impoundments receiving CCR and existing surface impoundments that are no longer receiving CCR but contain liquid located at stations currently generating electricity (regardless of fuel source). The rule establishes requirements regarding landfill design, structural integrity design and assessment criteria for surface impoundments, groundwater monitoring, protection and remedial procedures and other operational and reporting procedures to ensure the safe disposal and management of CCR. As a result of the EPA rule, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Ohio and Duke Energy Indiana recorded additional ARO amounts during 2015. Various industry and environmental parties have appealed the EPA's CCR rule in the U.S. Court of Appeals for the District of Columbia (D.C. Circuit Court). On April 18, 2016, the EPA filed a motion with the federal court to settle five issues raised in litigation. On June 14, 2016, the court approved the motion with respect to all of those issues. Duke Energy does not expect a material impact from the settlement or that it will result in additional ARO adjustments. The Utility Solid Waste Activities Group filed a petition with the EPA seeking to have EPA reconsider certain provisions of the final rule, extend remaining compliance deadlines and ask the D.C. Circuit Court to hold the litigation in abeyance. While EPA has confirmed that it will reconsider certain provisions of the final rule, the D.C. Circuit Court denied EPA’s petition to hold the litigation in abeyance. Oral argument is scheduled for November 20, 2017.
In addition to the requirements of the federal CCR regulation, CCR landfills and surface impoundments will continue to be independently regulated by most states. Cost recovery for future expenditures will be pursued through the normal ratemaking process with federal and state utility commissions and via wholesale contracts, which permit recovery of necessary and prudently incurred costs associated with Duke Energy’s regulated operations. For more information, see Note 9, “Asset Retirement Obligations,” in Duke Energy’s Annual Report on Form 10-K for the year ended December 31, 2016.

PART I

Coal Ash Management Act of 2014
Asset retirement obligations recorded on the Duke Energy Carolinas and Duke Energy Progress Condensed Consolidated Balance Sheets at September 30, 2017, and December 31, 2016, include the legal obligation for closure of coal ash basins and the disposal of related ash as a result of the Coal Ash Act, the EPA CCR rule and other agreements. On July 14, 2016, the Coal Ash Act was amended, requiring Duke Energy to undertake dam improvement projects and to provide access to a permanent alternative drinking water source to certain residents within a half- mile of coal ash basin compliance boundaries and to certain other potentially impacted residents. The legislation ranked basins at the H.F. Lee, Cape Fear and Weatherspoon stations as intermediate risk, consistent with Duke Energy's previously announced plans to excavate those basins. These specific intermediate-risk basins require closure through excavation including a combination of transferring ash to an appropriate engineered landfill or conversion of the ash for beneficial use. Closure of these specific intermediate-risk basins is required to be completed no later than August 1, 2028. Upon satisfactory completion of the dam improvement projects and installation of alternative drinking water sources by October 15, 2018, the legislation requires the NCDEQ to reclassify all remaining sites, excluding H.F. Lee, Cape Fear and Weatherspoon, as low risk. In January 2017, NCDEQ issued preliminary approval of Duke Energy's plans for the alternative water sources.
Additionally, the July 2016 legislation requires the installation and operation of three large-scale coal ash beneficiation projects, which are expected to produce reprocessed ash for use in the concrete industry. Closure of basins at sites with these beneficiation projects is required to be completed no later than December 31, 2029. On October 5, 2016, Duke Energy announced Buck Steam Station as a first location for one of the beneficiation projects. On December 13, 2016, Duke Energy announced H.F. Lee as the second location. On June 30, 2017, Duke Energy announced the Cape Fear Plant as the third beneficiation location.
Provisions of the Coal Ash Act prohibit cost recovery in customer rates for unlawful discharge of ash impoundment waters occurring after January 1, 2014. The Coal Ash Act leaves the decision on cost recovery determinations related to closure of ash impoundments to the normal ratemaking processes before utility regulatory commissions. Consistent with the requirements of the Coal Ash Act, Duke Energy has submitted comprehensive site assessments and groundwater corrective plans to NCDEQ and will submit to NCDEQ site-specific coal ash impoundment closure plans in advance of closure. These plans and all associated permits must be approved by NCDEQ before closure work can begin.
For more information, see Note 9, “Asset Retirement Obligations,” in Duke Energy’s Annual Report on Form 10-K for the year ended December 31, 2016.
Clean Water Act 316(b)
The EPA published the final 316(b) cooling water intake structure rule on August 15, 2014, with an effective date of October 14, 2014. The rule applies to 26 of the electric generating facilities the Duke Energy Registrants own and operate. The rule allows for several options to demonstrate compliance and provides flexibility to the state environmental permitting agencies to make determinations on controls, if any, that will be required for cooling water intake structures. Any required intake structure modifications and/or retrofits are expected to be installed in the 2019 to 2022 time frame. Petitions challenging the rule have been filed by several groups. Oral argument was held on September 14, 2017. It is unknown when the courts will rule on the petitions. The Duke Energy Registrants cannot predict the outcome of these matters.
Steam Electric Effluent Limitations Guidelines
On January 4, 2016, the final Steam Electric Effluent Limitations Guidelines (ELG) rule became effective. The rule establishes new requirements for wastewater streams associated with steam electric power generation and includes more stringent controls for any new coal plants that may be built in the future. As originally written, affected facilities were required to comply between 2018 and 2023, depending on timing of new Clean Water Act (CWA) permits and waste stream. Most of the steam electric generating facilities the Duke Energy Registrants own are affected sources. The Duke Energy Registrants are well-positioned to meet the majority of the requirements of the rule due to current efforts to convert to dry ash handling. Petitions challenging the rule have been filed by several groups. On March 16, 2015, Duke Energy Indiana filed its own legal challenge to the rule with the Seventh Circuit Court of Appeals specific to the ELG rule focused on the limits imposed on IGCC facilities (gasification wastewater). All challenges to the rule were consolidated in the Fifth Circuit Court of Appeals. The Fifth Circuit Court of Appeals granted EPA's request to stay the pending litigation on the ELG rule until August 12, 2017, and on August 22, 2017, the Fifth Circuit Court of Appeals granted EPA’s Motion to Govern Further Proceedings, thereby severing and suspending the claims related to flue gas desulfurization wastewater, bottom ash transport water and gasification wastewater. Claims regarding gasification wastewater were stayed, pending the issuance of the variance to Duke Energy Indiana. The litigation will continue as to claims related to other waste streams. 
On August 7, 2017, EPA issued a public notice regarding its proposed decision to grant a variance to Duke Energy Indiana for mercury and total suspended solids for gasification wastewater at its Edwardsport facility. The public comment period has ended, but EPA has not finalized its decision. Separate from the litigation, EPA finalized a rule on September 12, 2017, postponing the initial applicability date for bottom ash transport water and flue gas desulfurization wastewater from 2018 to 2020 and retaining the end applicability date of 2023. Also, as part of the rule, EPA reiterated its intent to conduct a new rulemaking to revise limitation guidelines for bottom ash transport water and flue gas desulfurization wastewater.
The Duke Energy Registrants cannot predict the outcome of these matters.

PART I

Estimated Cost and Impacts of Rulemakings
Duke Energy will incur capital expenditures to comply with the environmental regulations and rules discussed above. The following table provides five-year estimated costs, excluding AFUDC, of new control equipment that may need to be installed on existing power plants primarily to comply with the Coal Ash Act requirements for conversion to dry disposal of bottom ash and fly ash, CWA 316(b) and ELGs through December 31, 2021. The table excludes ash basin closure costs recorded in Asset retirement obligations on the Condensed Consolidated Balance Sheets. For more information related to AROs, see Note 9, “Asset Retirement Obligations” in Duke Energy’s Annual Report on Form 10‑K for the year ended December 31, 2016.
(in millions)Estimated Cost
Duke Energy$1,340
Duke Energy Carolinas580
Progress Energy420
Duke Energy Progress310
Duke Energy Florida110
Duke Energy Ohio90
Duke Energy Indiana250
The Duke Energy Registrants also expect to incur increased fuel, purchased power, operation and maintenance and other expenses, in addition to costs for replacement generation for potential coal-fired power plant retirements, as a result of these regulations. Actual compliance costs incurred may be materially different from these estimates due to reasons such as the timing and requirements of EPA regulations and the resolution of legal challenges to the rules. The Duke Energy Registrants intend to seek rate recovery of necessary and prudently incurred costs associated with regulated operations to comply with these regulations.
Cross-State Air Pollution Rule
On December 3, 2015, the EPA proposed a rule to lower the Cross-State Air Pollution Rule (CSAPR) Phase 2 state ozone season nitrogen oxide (NOX) emission budgets for 23 eastern states, including North Carolina, Ohio, Kentucky and Indiana. The EPA also proposed to eliminate the CSAPR Phase 2 ozone season state NOX budgets for Florida and South Carolina. On September 7, 2016, the EPA finalized the CSAPR Update Rule that reduces the CSAPR Phase 2 state ozone season NOX emission budgets for 22 eastern states, including Ohio, Kentucky and Indiana. In the final CSAPR Update Rule, the EPA removed Florida, South Carolina and North Carolina from the ozone season NOx program. Beginning in 2017, Duke Energy Registrants in these states will not be subject to any CSAPR ozone season NOx emission limitations. For the states that remain in the program, the reduced state ozone season NOx emission budgets took effect on May 1, 2017. In Kentucky and Indiana, where Duke Energy Registrants own and operate coal-fired electric generating units (EGUs) subject to the final rule requirements, near-term responses include changing unit dispatch to run certain generating units less frequently and/or purchasing NOx allowances from the trading market. Longer term, upgrading the performance of existing NOx controls is an option. The Indiana Utility Group and the Indiana Energy Association jointly filed a petition for reconsideration asking that the EPA correct errors it made in calculating the Indiana budget and increase the budget accordingly. EPA has yet to act on the petition. Numerous parties have filed petitions with the D.C. Circuit Court challenging various aspects of the CSAPR Update Rule. Briefing in the case began on August 21, 2017. The date for oral argument has not been established. The Duke Energy Registrants cannot predict the outcome of these matters.
Carbon Pollution Standards for New, Modified and Reconstructed Power Plants
On October 23, 2015, the EPA published a final rule in the Federal Register establishing carbon dioxide (CO2) emissions limits for new, modified and reconstructed power plants. The requirements for new plants apply to plants that commenced construction after January 8, 2014. The EPA set an emissions standard for coal units of 1,400 pounds of CO2 per gross MWh, which would require the application of partial carbon capture and storage (CCS) technology for a coal unit to be able to meet the limit. Utility-scale CCS is not currently a demonstrated and commercially available technology for coal-fired EGUs, and therefore the final standard effectively prevents the development of new coal-fired generation. The EPA set a final standard of 1,000 pounds of CO2 per gross MWh for new natural gas combined-cycle units.
On March 28, 2017, President Trump signed an executive order directing EPA to review the rule and determine whether to suspend, revise or rescind it. On the same day, the Department of Justice (DOJ) filed a motion with the D.C. Circuit Court requesting that the court stay the litigation of the rule while it is reviewed by EPA. Subsequent to the DOJ motion, the D.C. Circuit Court canceled oral argument in the case, which had been scheduled for April 17, 2017. On August 10, 2017, the court ordered that the litigation be suspended indefinitely. The rule remains in effect pending the outcome of litigation and EPA’s review. EPA has not announced a schedule for completing its review. The Duke Energy Registrants cannot predict the outcome of these matters, but do not expect the impacts of the current final standards will be material to Duke Energy's financial position, results of operations or cash flows.
Clean Power Plan
On October 23, 2015, the EPA published in the Federal Register the final Clean Power Plan (CPP) rule to regulate CO2 emissions from existing fossil fuel-fired EGUs. The CPP established CO2 emission rates and mass cap goals that apply to existing fossil fuel-fired EGUs. Petitions challenging the rule have been filed by several groups and on February 9, 2016, the Supreme Court issued a stay of the final CPP rule, halting implementation of the CPP until legal challenges are resolved. States in which the Duke Energy Registrants operate have suspended work on the CPP in response to the stay. Oral arguments before 10 of the 11 judges on D.C. Circuit Court were heard on September 27, 2016. The court has not issued its opinion in the case.

PART I

On March 28, 2017, President Trump signed an executive order directing EPA to review the CPP and determine whether to suspend, revise or rescind the rule. On the same day, the DOJ filed a motion with the D.C. Circuit Court requesting that the court stay the litigation of the rule while it is reviewed by EPA. On April 28, 2017, the court issued an order to suspend the litigation for 60 days. On August 8, 2017, the court, on its own motion, extended the suspension of the litigation for an additional 60 days. On October 10, 2017, EPA issued a Notice of Proposed Rulemaking to repeal the CPP based on a change to EPA’s legal interpretation of the section of the Clean Air Act (CAA) on which the CPP was based. In the proposal EPA indicates that it has not determined whether it will issue a rule to replace the CPP, and if it will do so, when and what form that rule will take. The comment period on EPA's proposal ends December 15, 2017. Litigation of the CPP remains on hold in the D.C. Circuit and the February 2016 U.S. Supreme Court stay of the CPP remains in effect. The Duke Energy Registrants cannot predict the outcome of these matters.
Global Climate Change
For other information on global climate change and the potential impacts on Duke Energy, see “Other Matters” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K for the year ended December 31, 2016.
North Carolina Legislation
In July 2017, the North Carolina General Assembly passed House Bill 589 and it was subsequently enacted into law by the governor. The law includes, among other things, overall reform of the application of the Public Utility Regulatory Policies Act of 1978 (PURPA) for new solar projects in the state, a requirement for the utility to procure approximately 2,600 MW of renewable energy through a competitive bidding process and recovery of costs related to the competitive bidding process through the fuel clause and a competitive procurement rider. Duke Energy is evaluating the impact of this law.
Nuclear Matters
For other information on nuclear matters and the potential impacts on Duke Energy, see “Other Matters” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K for the year ended December 31, 2016.
New Accounting Standards
See Note 1 to the Condensed Consolidated Financial Statements, “Organization and Basis of Presentation,” for a discussion of the impact of new accounting standards.
Off-Balance Sheet Arrangements
During the three and nine months ended September 30, 2017, there were no material changes to Duke Energy’s off-balance sheet arrangements. See Note 13 to the Condensed Consolidated Financial Statements, "Variable Interest Entities," for a discussion of off-balance sheet arrangements regarding Atlantic Coast Pipeline. For additional information on Duke Energy’s off-balance sheet arrangements, see “Off-Balance Sheet Arrangements” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K for the year ended December 31, 2016.
Contractual Obligations
Duke Energy enters into contracts that require payment of cash at certain specified periods, based on certain specified minimum quantities and prices. During the three and nine months ended September 30, 2017, there were no material changes in Duke Energy's contractual obligations. For an in-depth discussion of Duke Energy’s contractual obligations, see “Contractual Obligations” and “Quantitative and Qualitative Disclosures about Market Risk” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K for the year ended December 31, 2016.
Subsequent Events
See Note 18 to the Condensed Consolidated Financial Statements, “Subsequent Events,” for a discussion of subsequent events.
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
During the three and nine months ended September 30, 2017, there were no material changes to the Duke Energy Registrants' disclosures about market risk. For an in-depth discussion of the Duke Energy Registrants' market risks, see “Quantitative and Qualitative Disclosures about Market Risk” in Item 7 of the Annual Report on Form 10-K for the Duke Energy Registrants. During the three months ended March 31, 2022, there were no material changes to the Duke Energy Registrants' disclosures about market risk.
ITEM 4. CONTROLS AND PROCEDURES
Disclosure Controls and Procedures
Disclosure controls and procedures are controls and other procedures that are designed to ensure that information required to be disclosed by the Duke Energy Registrants in the reports they file or submit under the Securities Exchange Act of 1934 (Exchange Act) areis recorded, processed, summarized and reported, within the time periods specified by the SEC rules and forms.
Disclosure controls and procedures include, without limitation, controls and procedures designed to provide reasonable assurance that information required to be disclosed by the Duke Energy Registrants in the reports they file or submit under the Exchange Act areis accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

PART I

Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Duke Energy Registrants have evaluated the effectiveness of their disclosure controls and procedures (as such term is defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act) as of September 30, 2017,March 31, 2022, and, based upon this evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that these controls and procedures are effective in providing reasonable assurance of compliance.
Changes in Internal Control over Financial Reporting
Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Duke Energy Registrants have evaluated changes in internal control over financial reporting (as such term is defined in Rules 13a-15(f)13a-15 and 15d-15(f)15d-15 under the Exchange Act) that occurred during the fiscal quarter ended September 30, 2017,March 31, 2022, and have concluded no change has materially affected, or is reasonably likely to materially affect, internal control over financial reporting.

93
PART II. OTHER INFORMATION


OTHER INFORMATION



ITEM 1. LEGAL PROCEEDINGS
For information regarding material legal proceedings, including regulatory and environmental matters, see Note 4,3, "Regulatory Matters," and Note 5,4, "Commitments and Contingencies," to the Condensed Consolidated Financial Statements. For additional information, see Item 3, "Legal Proceedings," in Duke Energy’sEnergy's Annual Report on Form 10-K for the year ended December 31, 2016.2021.
ITEM 1A. RISK FACTORS
In addition to the other information set forth in this report, careful consideration should be given to the factors discussed in Part I, “Item 1A. Risk Factors” in the Duke Energy Registrants' Annual Report on Form 10-K for the year ended December 31, 2021, which could materially affect the Duke Energy Registrants’ financial condition or future results.
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
ISSUERPURCHASES OF EQUITY SECURITIESNone.
There were no issuer purchases of equity securities during the third quarter of 2017.

94
PART II


EXHIBITS

ITEM 6. EXHIBITS
Exhibits filed herein are designated by an asterisk (*). All exhibits not so designated are incorporated by reference to a prior filing, as indicated. Items constituting management contracts or compensatory plans or arrangements are designated by a double asterisk (**). The Companycompany agrees to furnish upon request to the Commissioncommission a copy of any omitted schedules or exhibits upon request on all items designated by a triple asterisk (***).
DukeDukeDukeDukeDuke
ExhibitDukeEnergyProgressEnergyEnergyEnergyEnergy
NumberEnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
4.1XX
4.2X
4.3X
*10.1X
*12X
*31.1.1X
*31.1.2X
*31.1.3X
*31.1.4X
*31.1.5X
*31.1.6X
*31.1.7X
*31.1.8X
*31.2.1X
*31.2.2X
*31.2.3X
*31.2.4X
*31.2.5X
*31.2.6X

95

EXHIBITS
PART II


*31.2.710.2XXXXXXX
10.3X
*10.4X
*10.5X
*31.1.1X
*31.1.2X
*31.1.3X
*31.1.4X
*31.1.5X
*31.1.6X
*31.1.7X
*31.1.8X
*31.2.1XX
*31.2.831.2.2XX
*32.1.131.2.3X
96

EXHIBITS

*31.2.4X
*31.2.5X
*31.2.6X
*31.2.7X
*31.2.8X
*32.1.1X
*32.1.2X
*32.1.3X
*32.1.4X
*32.1.5X
*32.1.6X
*32.1.7X
*32.1.8X
*32.2.1X
*32.2.2X
*32.2.3X
*32.2.4X
*32.2.5X
*32.2.6X
*32.2.7X
97

EXHIBITS

*32.2.8X
*101.INSXBRL Instance Document.XXXXXXXX
*101.SCHXBRL Taxonomy Extension Schema Document.XXXXXXXX

PART II

X
*101.INSXBRL Instance Document (this does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document).XXXXXXXX
*101.SCHXBRL Taxonomy Extension Schema Document.XXXXXXXX
*101.CALXBRL Taxonomy Calculation Linkbase Document.XXXXXXXX
*101.LABXBRL Taxonomy Label Linkbase Document.XXXXXXXX
*101.PREXBRL Taxonomy Presentation Linkbase Document.XXXXXXXX
*101.DEFXBRL Taxonomy Definition Linkbase Document.XXXXXXXX
*104Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101).XXXXXXXX
The total amount of securities of the registrant or its subsidiaries authorized under any instrument with respect to long-term debt not filed as an exhibit does not exceed 10 percent10% of the total assets of the registrant and its subsidiaries on a consolidated basis. The registrant agrees, upon request of the SEC, to furnish copies of any or all of such instruments to it.

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PART II


SIGNATURES

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned thereunto duly authorized.


DUKE ENERGY CORPORATION
DUKE ENERGY CAROLINAS, LLC
PROGRESS ENERGY, INC.
DUKE ENERGY PROGRESS, LLC
DUKE ENERGY FLORIDA, LLC
DUKE ENERGY OHIO, INC.
DUKE ENERGY INDIANA, LLC
PIEDMONT NATURAL GAS COMPANY, INC.


Date:November 3, 2017May 9, 2022/s/ STEVEN K. YOUNG
Steven K. Young

Executive Vice President and Chief Financial Officer (Principal Financial Officer)

Date:November 3, 2017May 9, 2022/s/ WILLIAM E. CURRENS JR.CYNTHIA S. LEE
William E. Currens Jr.
Senior Cynthia S. Lee
Vice President, Chief Accounting Officer

and Controller

(Principal Accounting Officer)

13299