UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-K
x
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the Fiscal Year ended December 31, 2018.2021.
o
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the Transition period from                      to                       .
Commission file No. 001-15891
NRG Energy, Inc.
(Exact name of registrant as specified in its charter)
Delaware
(State or other jurisdiction of incorporation or organization)
41-1724239
(I.R.S. Employer Identification No.)
804 Carnegie Center, Princeton, New Jersey910 Louisiana Street, Houston, Texas
(Address of principal executive offices)
08540 77002
(Zip Code)
(609) 524-4500(713) 537-3000
(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading Symbol(s)Name of Exchange on Which Registered
Common Stock, par value $0.01NRGNew York Stock Exchange
Securities registered pursuant to Section 12(g) of the Act:
None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.   Yes  x    No o
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.    Yes o    No x
Indicate by check mark whether the registrant (1) has filed all reports to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.   Yes  x    No o
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).   Yes  x    No o
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of the registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or 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.
Large accelerated filer x
Accelerated Filer ☒
Accelerated filer o
Non-accelerated filer o
Smaller reporting companyo
Emerging growth companyo
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C 7262(b)) by the registered public accounting firm that prepared or issued its audit report ☒
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes o    No x
As of the last business day of the most recently completed second fiscal quarter, the aggregate market value of the common stock of the registrant held by non-affiliates was approximately $7,964,294,696$8,611,281,553 based on the closing sale price of $30.70$40.30 as reported on the New York Stock Exchange.
Indicate the number of shares outstanding of each of the registrant's classes of common stock as of the latest practicable date.
ClassOutstanding at January 31, 2019February 24, 2022
Common Stock, par value $0.01 per share280,997,550242,153,239
Documents Incorporated by Reference:
Portions of the Registrant's definitive Proxy Statement relating to its 20192022 Annual Meeting of Stockholders
are incorporated by reference into Part III of this Annual Report on Form 10-K


1


TABLE OF CONTENTS

2


Glossary of Terms
        When the following terms and abbreviations appear in the text of this report, they have the meanings indicated below:
2023 Term Loan FacilityACEThe Company's $1.7 billion term loan facility due 2023, a component of the Senior Credit FacilityAffordable Clean Energy
Adjusted EBITDAAdjusted earnings before interest, taxes, depreciation and amortization
AROAsset Retirement Obligation
ASCThe FASB Accounting Standards Codification, which the FASB established as the source of authoritative GAAP
ASUAccounting Standards Updates – updates to the ASC
AUCAlberta Utilities Commission
Average realized pricesVolume-weighted average power prices, net of average fuel costs and reflecting the impact of settled hedges
Bankruptcy CodeChapter 11 of Title 11 of the U.S. Bankruptcy Code
Bankruptcy CourtUnited States Bankruptcy Court for the Southern District of Texas, Houston Division
BaseloadUnits expected to satisfy minimum baseload requirements of the system and produce electricity at an essentially constant rate and run continuously
BETMBrazosBoston Energy Trading and Marketing LLCBrazos Electric Power Cooperative, Inc.
BTUBritish Thermal Unit
BusinessNRG Business, SolutionsNRG'swhich serves business solutions group, which includes demand response, commodity sales, energy efficiency and energy management servicescustomers
CAAClean Air Act
CAISOCalifornia Independent System Operator
CarlsbadCARES ActCoronavirus Aid, Relief, and Economic Security Act
CarlsbadCarlsbad Energy Center, a 528 MW natural gas-fired project located in Carlsbad, CA
CCFCarbon Capture Facility
CDDCCRCoal Combustion Residuals
CDDCooling Degree Day
CDWRCalifornia Department of Water Resources
CFTCCentricaCentrica plc
CESClean Energy Standard
CFTCU.S. Commodity Futures Trading Commission
Chapter 11 CasesClecoVoluntary cases commenced by the GenOn Entities under the Bankruptcy Code in the Bankruptcy Court
C&ICommercial, industrial and governmental/institutional
CESClean Energy Standard
ClecoCleco Corporate Holdings LLC
CO2
Carbon Dioxide
CO2e2e
Carbon Dioxide Equivalents
ComEdCommonwealth Edison
CompanyNRG Energy, Inc.
CPPConvertible Senior NotesAs of December 31, 2021, consists of NRG’s $575 million unsecured 2.75% Convertible Senior Notes due 2048
CottonwoodCottonwood Generating Station, a 1,177 MW natural gas-fueled plant
COVID-19Coronavirus Disease 2019
CPPClean Power Plan
CPUCCalifornia Public Utilities Commission
CWAClean Water Act
D.C. CircuitU.S. Court of Appeals for the District of Columbia Circuit
Distributed SolarSolar power projects that primarily sell power to customers for usage on site, or are interconnected to sell power into a local distribution grid
DNRECDelaware Department of Natural Resources and Environmental Control
DominionDSIDominion Resources, Inc.
DSIDry Sorbent Injection
DSUDeferred Stock Unit
Dual fuel customersCustomer that have both electricity and natural gas service with the Company
Economic gross marginSum of energy revenue, capacity revenue, retail revenue and other revenue, less cost of fuels and other cost of sales
EGUElectric Generating Unit
EmaniEuropean Mutual Association for Nuclear Insurance

EMEEdison Mission Energy
3

EMAACEPAEastern Mid-Atlantic Area Council
Energy Plus HoldingsEnergy Plus Holdings LLC
EPAU.S. Environmental Protection Agency
EPCEngineering, Procurement and Construction
EPSAERCOTThe Electric Power Supply Association
ERCOTElectric Reliability Council of Texas, the Independent System Operator and the regional reliability coordinator of the various electricity systems within Texas
ESPESCOElectrostatic PrecipitatorEnergy Service Companies
ESPPESPElectrostatic Precipitator
ESPPNRG Energy, Inc. Amended and Restated Employee Stock Purchase Plan
ESPSExisting Source Performance Standards
Exchange ActThe Securities Exchange Act of 1934, as amended
FASBFinancial Accounting Standards Board
FERCFederal Energy Regulatory Commission
FGDFlue gas desulfurization
FPAFederal Power Act
Fresh StartFTRs
Reporting requirements as defined by ASC-852, Reorganizations
FTRsFinancial Transmission Rights
GAAPAccountingGenerally accepted accounting principles generally accepted in the U.S.
GenConnGenOnGenConn Energy LLC
GenOnGenOn Energy, Inc.
GenOn Americas GenerationGenOn Americas Generation, LLC
GenOn EntitiesGenOn and certain of its wholly owned subsidiaries, including GenOn Americas Generation, LLC, that filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the Bankruptcy Court on June 14, 2017
GenOn Mid-AtlanticGHGGenOn Mid-Atlantic, LLC and, except where the context indicates otherwise, its subsidiaries, which include the coal generation units at two generating facilities under operating leasesGreenhouse Gas
GHGGIPGreenhouse Gas
GIPGlobal Infrastructure Partners
Green Mountain EnergyGreen Mountain Energy Company
GWGigawattGigawatts
GWhGigawatt HourHours
HAPHazardous Air Pollutant
HDDHeating Degree Day
Heat RateA measure of thermal efficiency computed by dividing the total BTU content of the fuel burned by the resulting kWhs generated. Heat rates can be expressed as either gross or net heat rates, depending whether the electricity output measured is gross or net generation and is generally expressed as BTU per net kWh
HLBVHypothetical Liquidation at Book Value
HLWHigh-level radioactive waste
IASBInternational Accounting Standards Board
IFRSHomeInternational Financial Reporting StandardsNRG Home, which serves residential customers
Indexed RateICEAn indexed rate means that the price of the electricity sold to the customer is tied to an underlying variable, or index, such as monthly closing of NYMEX natural gasIntercontinental Exchange
IPPNYISOIndependent Power Producers of New York
ISOIndependent System Operator, also referred to as RTOs
ISO-NEISO New England Inc.
ITCIvanpahInvestment Tax Credit
kWhKilowatt-hour

Ivanpah Solar Electric Generation Station, a 393 MW solar thermal power plant located in California's Mojave Desert in which NRG owns 54.5% interest
LaGenkWhKilowatt-hours
LaGenLouisiana Generating LLC
LIBORLondon Inter-Bank Offered Rate
LSELoad Serving Entities
LTIPsCollectively, the NRG LTIP and the NRG GenOn LTIP
LTSALong-Term Service Agreement
Mass MarketMATSResidential and small commercial customers
MATSMercury and Air Toxics Standards promulgated by the EPA
MDthThousand Dekatherms
MergerThe merger completed on December 14, 2012 by NRG and GenOn pursuant to the Merger Agreement
Midwest GenerationMidwest Generation, LLC
MISOMidcontinent Independent System Operator, Inc.
MMBtuMillion British Thermal Units
MSUMMDthMillion Dekatherms
4

MSUMarket Stock Unit
MWMegawatts
MWhMWeMegawatt equivalent
MWhSaleable megawatt hour net of internal/parasitic load megawatt-hour
NAAQSNational Ambient Air Quality Standards
NEILNuclear Electric Insurance Limited
NEPOOLNew England Power Pool
NERCNorth American Electric Reliability Corporation
Net Capacity FactorThe net amount of electricity that a generating unit produces over a period of time divided by the net amount of electricity it could have produced if it had run at full power over that time period. The net amount of electricity produced is the total amount of electricity generated minus the amount of electricity used during generation
Net ExposureCounterparty credit exposure to NRG, net of collateral
Net GenerationThe net amount of electricity produced, expressed in kWhs or MWhs, that is the total amount of electricity generated (gross) minus the amount of electricity used during generation
NJBPUNet Revenue RateNew Jersey BoardSum of Public Utilitiesretail revenues less TDSP transportation charges
NOLNet Operating Loss
NOx
Nitrogen Oxides
NPDESNPNSNational Pollutant Discharge Elimination System
NPNSNormal Purchase Normal Sale
NQSONon-Qualified Stock Option
NRCU.S. Nuclear Regulatory Commission
NRGNRG Energy, Inc.
NRG GenOn LTIPNRG 2010 Stock Plan for GenOn Employees (formerly the GenOn Energy, Inc. 2010 Omnibus Incentive Plan, which was assumed by NRG in connection with the Merger)
NRG LTIPNRG Energy, Inc. Amended and Restated Long-Term Incentive Plan
NRG Yield, Inc.NRG Yield, Inc., which changed it'sits name to Clearway energy, Inc. following the sale by NRG or NRG Yield and the Renewables Platform to GIP
Nuclear Decommissioning Trust FundNRG's nuclear decommissioning trust fund assets, which are for the Company's portion of the decommissioning of the STP, units 1 & 2
Nuclear Waste Policy ActU.S. Nuclear Waste Policy Act of 1982
NYISONew York Independent System Operator
NYMEXNew York Mercantile Exchange
NYSPSCNYSDECNew York State Public Service CommissionDepartment of Environmental Conservation
OCI/OCLOther Comprehensive Income/(Loss)
ORDCOperating Reserve Demand Curve
PA PUCORDPAPennsylvania Public Utility Commission

Online Reliability Deployment Price Adder
Peaking
PeakingUnits expected to satisfy demand requirements during the periods of greatest or peak load on the system
PERPetra NovaPeak Energy RentPetra Nova Parish Holdings, LLC
Petition DateJune 14, 2017
PG&EPipelinePG&E Corporation (NYSE: PCG) and its primary operating subsidiary, Pacific Gas and Electric Company
PipelineProjects that range from identified lead to shortlisted with an offtake, and represents a lower level of execution certainty
PJMPJM Interconnection, LLC
PM2.5Particulate Matter that has a diameter of less than 2.5 micrometers
PPAPower Purchase Agreement
PPMParts per million
PSUPerformance Stock Unit
PTCPUCTProduction Tax Credit
PUCTPublic Utility Commission of Texas
PURPARayburnPublic Utility Regulatory Policies Act of 1978Rayburn Country Electric Cooperative, Inc.
RCRAResource Conservation and Recovery Act of 1976
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Reliant EnergyReceivables Securitization FacilitiesReliant Energy Retail Services, LLCCollectively, the Receivables Facility and the Repurchase Facility
REMARECsNRG REMA LLC, which leases a 100% interest in the Shawville generating facility and 16.7% and 16.5% interests in the Keystone and Conemaugh generating facilities, respectivelyRenewable Energy Certificates
RenewablesConsistConsists of the following projects retained by NRG:in which NRG has an ownership interest: Agua Caliente, Ivanpah, Guam,and solar generating stations located at various NFL stadiumsStadiums
Renewables PlatformThe renewable operating and development platform sold to GIP with NRG's interest in NRG Yield.
Restructuring Support AgreementRestructuring Support and Lock-Up Agreement, dated as of June 12, 2017 and as amended on October 2, 2017, by and among GenOn Energy, Inc., GenOn Americas Generation, LLC, and subsidiaries signatory thereto, NRG Energy, Inc. and the noteholders signatory thereto
RetailReporting segment that includes NRG's residential and small commercial businesses which go to market as Reliant, NRG and other brands owned by NRG, as well as Business Solutions
Revolving Credit FacilityThe Company's $2.4$3.7 billion revolving credit facility as of December 31, 2021, a component of the Senior Credit Facility, due 20212024 was amended on May 28, 2019 and August 20, 2020
RGGIRegional Greenhouse Gas Initiative
RMRReliability Must-Run
ROFORPSRight of First Offer
ROFO AgreementSecond Amended and Restated Right of First Offer Agreement by and between NRG Energy, Inc. and NRG Yield, Inc.
RPMReliability Pricing Model
RPSRenewable Portfolio Standards
RPSURelative Performance Stock Unit
RSURestricted Stock Unit
RTORegional Transmission Organization
SCESCRSouthern California Edison Company
SCRSelective Catalytic Reduction Control System
SDG&ESECSan Diego Gas & Electric
SECU.S. Securities and Exchange Commission
Securities ActThe Securities Act of 1933, as amended
Senior Credit Facility
NRG's senior secured credit facility, comprised of the Revolving Credit Facility and the 2023 Term Loan Facility

Prior to June 30, 2016, the Company's senior secured facility, comprised of theFacility. The 2023 Term Loan Facility andwas repaid in the Revolving Credit Facility. On June 30, 2016, the Company replaced the Senior Credit Facility with the 2016 Senior Credit Facility

second quarter of 2019
Senior NotesAs of December 31, 2018,2021, NRG's $3.8$4.6 billion outstanding unsecured senior notes consisting of $733$375 million of 6.25% senior notes due 2024, $1.0 billion of the 7.25% senior notes due 2026, $1.23 billion of the 6.625% senior notes due 2027, and $821 million of 5.75% senior notes due 2028, $733 million of the 5.25% senior notes due 2029, $500 million of the 3.375% senior notes due 2029, $1.0 billion of the 3.625% senior notes due 2031 and $1.1 billion of the 3.875% senior notes due 2032
Services AgreementSenior Secured NotesNRG provided GenOn with various management, personnelAs of December 31, 2021, NRG’s $2.5 billion outstanding Senior Secured First Lien Notes consists of $600 million of the 3.75% Senior Secured First Lien Notes due 2024, $500 million of the 2.0% Senior Secured First Lien Notes due 2025, $900 million of the 2.45% Senior Secured First Lien Notes due 2027, and other services, which include human resources, regulatory and public affairs, accounting, tax, legal, information systems, treasury, risk management, commercial operations, and asset management, as set forth in$500 million of the services agreement with GenOn4.45% Senior Secured First Lien Notes due 2029
Settlement AgreementSNFA settlement agreement and any other documents necessary to effectuate the settlement among NRG, GenOn, and certain holders of senior unsecured notes of GenOn Americas Generations and GenOn, and certain of GenOn's direct and indirect subsidiaries
SNFSpent Nuclear Fuel
SO2
Sulfur Dioxide
South Central PortfolioNRG's South Central Portfolio, which ownsowned and operatesoperated a 3,555 MW portfolio of generation assets consisting of 225 MW Bayou Cove, 430 MW Big Cajun-I, 1,461 MW Big Cajun-II, 1,263 MW Cottonwood and 176 MW Sterlington, and serves a customer base of cooperatives, municipalities and regional utilities under load contracts.was sold on February 4, 2019. NRG is leasing back the Cottonwood facility through May 2025
SPPS&PSolar Power Partners
S&PStandard & Poor's
STPSouth Texas Project — nuclear generating facility located near Bay City, Texas in which NRG owns a 44% interest
STPNOCSouth Texas Project Nuclear Operating Company
Tax ActThe Tax Cuts and Jobs Act of 2017
Term Loan FacilityTDSPPrior to June 30, 2016, the Company's $2.0 billion term loan facility due 2018.Transmission/distribution service provider
Texas GencoTexas Genco LLC
TSATSRTransportation Services Agreement
TSRTotal Shareholder Return
TWCCTexas Westmoreland Coal Co.
TWhTerawatt HourHours
UPMCU.S.University of Pittsburgh Medical Center
U.S.United States of America
U.S. DOEU.S. Department of Energy
Utility-Scale SolarVaRSolar power projects, typically 20 MW or greater in size (on an alternating current basis), that are interconnected into the transmission or distribution grid to sell power at a wholesale level
VaRValue at Risk
VCPVoluntary Clean-Up Program
VIEVariable Interest Entity
WECCWinter Storm UriWestern Electricity Coordinating Council
ZECsZero Emissions CreditsA major winter and ice storm that had widespread impacts across North America occurring in February 2021


6

PART I
Item 1 — Business
General
NRG Energy, Inc., or NRG or the Company, is an energya consumer services company built on dynamic retail brands with diverse generation assets.brands. NRG brings the power of energy to consumerscustomers by producing and selling and delivering electricityenergy and related products and services, in major competitive power marketsnation-wide in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG is perfectingsells power, natural gas, and home and power services, and develops innovative, sustainable solutions, predominately under the integrated model by balancing retail load with generation supply within its deregulated markets, while evolving to a customer-driven business.brand names NRG, Reliant, Direct Energy, Green Mountain Energy, Stream, and XOOM Energy. The Company sells energy, services,has a customer base that includes approximately 6 million Home customers as well as commercial, industrial, and innovative, sustainable products and services directly to retailwholesale customers, under the names "NRG" and "Reliant" and other brand names owned by NRG supported by approximately 23,000(a)18,000 MW of generation as of December 31, 2018. 2021.
NRG was incorporated as a Delaware corporation on May 29, 1992.sold 157 TWhs of electricity and 1,877 MMDth of natural gas in 2021, making it one of the largest competitive energy retailers in the U.S. As of the end of 2021, NRG had recurring electricity and/or natural gas sales in 24 U.S. states, the District of Columbia, and 8 provinces in Canada. NRG's retail brands, collectively, have the largest share of competitively served residential electric customers in Texas and nationwide.
The following chart represents NRG's sales volumes for the year ended December 31, 2021:
nrg-20211231_g1.jpg


Strategy
NRG's strategy is to maximize stockholderstakeholder value through the safe production and sale of reliable powerelectricity and natural gas to its customers in the markets served by the Company,it serves, while positioning the Company to provide innovative solutions to the end-use energy consumer.or service customer. This strategy is designedintended to enable the Company to optimize theits integrated model to generate stable and predictable cash flow, significantly strengthen earnings and cost competitiveness, and lower risk and volatility. Sustainability is a philosophy that underpins and facilitates value creation across our business for our stakeholders. It is an integral piece of NRG's strategy and ties directly to business success, reduced risks and brand value.enhanced reputation.
To effectuate the Company’s strategy, NRG is focused on: (i) serving the energy needs of end-use residential, commercial and industrial, and wholesale customers in competitive markets through multiple brands and channels withchannels; (ii) offering a variety of retail energy products and services, including renewable energy solutions, that are differentiated by innovative features, premium service, sustainability, and loyalty/affinity programs; (ii) deploying innovative and renewable energy solutions for consumers within its retail businesses; (iii) excellence in operating performance of its existing assets includingassets; (iv) optimal hedging of generation assetsits portfolio; and retail load operations; and (iv)(v) engaging in a proactivedisciplined and transparent capital allocation plan withinallocation.
The 2021 fiscal year was pivotal for the dictatesCompany. NRG completed the acquisition of prudent balance sheet management.Direct Energy, doubling the size of its retail portfolio, while further decreasing its physical generation through the sale and planned retirement of certain assets, each as further discussed below.The completion of these significant activities positioned NRG for the next phase of its strategy focusing on growth.
Transformation Plan
7

NRG is well underway in executing its Transformation Plan. The Company implemented a four-year plan beginning in 2022 to invest up to $2 billion in order to achieve growth through optimization of the Company's core power and natural gas sales, as well as integrated solution sales within its core network in both power and home services.
Significant Acquisitions, Dispositions and Announced Retirements
On January 5, 2021, the Company acquired Direct Energy. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy-related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increased NRG's retail portfolio by over 3 million customers and complemented its integrated model. It also broadened the Company's presence in the Northeast and in states and locales where it did not previously operate, supporting NRG's objective to diversify its business. NRG realized its planned synergy target of $175 million in 2021 and expects to fully implementrealize annual synergies of $225 million and $300 million in 2022 and 2023, respectively. See Item 15 Note 4, Acquisitions, Discontinued Operations and Dispositions, to the Transformation PlanConsolidated Financial Statements for further discussion of the acquisition of Direct Energy.
On December 1, 2021, the Company sold approximately 4,850 MWs of fossil generating assets from its East and West regions of operations to Generation Bridge, an affiliate of ArcLight Capital Partners. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025. See Item 15 Note 4, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements for further discussion.
During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released, leading the Company to announce the near-term retirement of approximately 1,600 MW of its PJM coal generating assets in June 2022. On July 30, 2021, PJM identified reliability impacts resulting from the proposed deactivation of one of those assets, Indian River Unit 4. On August 27, 2021 the Company notified PJM that it would continue operations at Indian River Unit 4 until the reliability upgrades identified by PJM were completed, provided that the unit receives a satisfactory and compensatory reliability must run arrangement. See Item 15 Note 11, Asset Impairments, to the Consolidated Financial Statements for further discussion. The Company is continuing to evaluate the viability of the remaining PJM generating assets.
Extreme Weather Event in Texas During February 2021 and expected Uplift Securitization proceeds
During February 2021, Texas experienced unprecedented cold temperatures for a prolonged duration as a result of Winter Storm Uri, resulting in a power emergency, blackouts, and an estimated all-time peak demand of 77 GW (without load shed). Ahead of the event, NRG launched residential customer communications calling for conservation across all of its brands, and initiated residential and commercial and industrial demand response programs to curtail customer load. The Company maximized available generating capacity and brought in additional resources to supplement in-state staff with technical and operating experts from the rest of its U.S. fleet.
The Texas Legislature passed House Bill ("HB") 4492, which among other things, authorized ERCOT to obtain $2.1 billion of financing to distribute to LSEs that were charged and paid to ERCOT exceptionally highly priced ORDPA and ancillary service costs during Winter Storm Uri (the "Uplift Securitization"). NRG will receive $689 million from ERCOT based on LSE-level detail published by the end of 2020 with a significant portion completed in 2018. The three-part, three-year plan is comprised of the following targets and the Company's achievements towards such targets are as follows:PUCT on December 7, 2021.
Operations and Cost Excellence
Recurring cost savings and margin enhancement of $1,065 million, which consists of $590 million of cumulative cost savings, a $215 million net margin enhancement program, $50 million annual reduction in maintenance capital expenditures, and $210 million in permanent selling, general and administrative expense reduction associated with asset sales. The Company realized annual cost savings of $532 million and $32 million of margin enhancements duringDuring the year ended December 31, 2018 and is on track2021, Winter Storm Uri's pre-tax financial impact to realize $590the Company was a loss of $380 million, which reflects the recovery of $689 million of cost savings and $135 million of margin enhancements in 2019.
operations as a result of the proceeds NRG will receive from the Uplift Securitization discussed above, with receipt expected to occur during the second quarter of 2022. The Company expectscontinues to realize (i) $370 million of non-recurring working capital improvements through 2020pursue additional mitigants including, but not limited to, customer bad debt mitigation, counterparty default recovery, and (ii) approximately $290 million of one-time costs to achieve. By December 31, 2018, NRG has realized $333 million of non-recurring working capital improvements and $194 million of one-time costs to achieve, and expects to incur approximately $95 million of one-time costs to achieve in 2019.
Portfolio Optimization
Targeted and completed $3.0 billion of asset sale cash proceeds received through February 28, 2019.
Capital Structure and Allocation
As of December 31, 2018, the Company achieved the previously announced target of reducing consolidated corporate debt to 3.0x net debt / adjusted EBITDA(b) credit ratio on a pro forma basis that includes the South Central Portfolio sale proceeds. As of February 28, 2019, the Company completed $1.5 billion of share repurchases.




(a)excluding discontinued operations and held for sale
(b)adjusted EBITDA as defined per the Senior Credit Facility

additional ERCOT default recovery.
Business Overview
The Company’s core business is the sale of electricity and natural gas to residential, commercial and industrial and wholesale customers, supported by the Company's wholesale generation. NRG manages its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus.
The Company's business is segmented as follows:
Texas, which includes all activity related to customer, plant and market operations in Texas;
East, which includes all activity related to customer, plant and market operations in the East;
West/Services/Other, which primarily includes the following assets and activities: (i) all activity related to customer, plant and market operations in the West and Canada, (ii) the services businesses, (iii) activity related to the Cottonwood facility, (iv) the remaining renewables activity, including the Company’s equity method investment in Ivanpah Master Holdings, LLC, and (v) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and
Corporate activities.
8

As of December 31, 2018,2021, in Texas, the Company’s generation supply is fully integrated with its retail load. In the East, the Company’s retail load is more dispersed throughout the region and not fully integrated with the Company’s generation supply due to the locations of its power plants in that region. In the West/Services/Other, the Company’s business is primarily serving retail load and services customers.
The Company’s integrated model consists of three core businesses include (i)functions: Customer Operations, Market Operations and Plant Operations, which directly support each other in each geographic region. The Company’s integrated model in Texas provides the advantage of being able to supply a significant portion of the Company’s retail customers with electricity from the Company’s assets, which reduces the need to sell electricity to and natural gasbuy electricity from other institutions and intermediaries, resulting in stable earnings and cash flows, lower transaction costs and less credit exposure. The integrated model also results in a reduction in actual and contingent collateral through offsetting transactions, thereby reducing transactions with third parties.
Customer Operations
Customer Operations is responsible for growing and retaining the customer base and delivering an outstanding customer experience. This includes acquisition and retention of all of NRG’s residential, industrialsmall commercial, government and commercial consumers, including personal power solutions& industrial customers. NRG employs a multi-brand strategy that leverages a wide array of sales and Business Solutions, which includes C&I customerspartnership channels, direct face-to-face sales channels, call centers, websites, and other distributedbrokers. Go-to-market activities include market strategy planning and reliability products,development, product innovation, offer design, campaign execution, marketing and (ii) wholesale conventional generation primarily to support the retail business. The Company is committed to continuing to evaluatecreative services, and streamline its generationselling. Customer portfolio to focus on locational valuemaintenance and supporting the retail business in each of the markets where the Company participates. In furtherance of this goal, during 2018,retention activities include fulfillment, billing, payment processing, collections, customer service, issue resolution, and contract renewals. NRG divested non-core businesses which included, among others: (i) NRG Yield, Inc. and the Company's Renewables Platform, and (ii) the Company's South Central Portfolio.
The Company previously had an ownership interest in GenOn Energy, Inc. which filed for bankruptcy on June 14, 2017. As a result of the bankruptcy filing, NRG determined it no longer controlled GenOn and deconsolidated GenOn and its subsidiaries for financial reporting purposes. On December 14, 2018, GenOn emerged from bankruptcy as a standalone company no longer owned by NRG.
Retail
Retail provides energy and related services at either fixed, indexed or month-to-month prices. Home customers typically contract for terms ranging from one month to residential, industrialfive years, while Business contracts are often between one year and commercial consumers through variousfive years in length. Throughout all Customer Operations activities, the customer experience is kept at the forefront to inform decision-making and optimize retention, while creating supporters and advocates for NRG’s brands and sales channels acrossin the U.S. In 2018, Retail delivered approximately 67 TWhs of electricity and 11 MDth of natural gas and served approximately 3.1 million customers. Retail's results make it onemarket. Following the expansion of the largest competitive energy retailers incustomer base with the U.S. Asacquisition of Direct Energy, Customer Operations now comprises three end-use customer facing teams: NRG Home, which serves residential customers, NRG Business, which serves business customers, and NRG Services, which primarily includes the endservices businesses acquired.
Product Offerings
NRG sells a variety of 2018, Retail has recurring electricity and/or natural gas sales in 19 U.S. states, the District of Columbia, and 2 provinces in Canada. Retail's brands, collectively, are the largest providers of electricity in Texas.
Residentialproducts to residential and small commercial (Mass Market) consumerscustomers, including retail electricity and energy management, natural gas, home security, line and surge protection products, HVAC installation, repair and maintenance, home protection products, carbon offsets, back-up power stations, portable power, portable solar and portable lighting. Home and Services customers make purchase decisions based on a variety of factors, including price, incentive, customer service, brand, product choicesinnovative offers/features and value-added features. These consumers purchase products through a variety of sales channels, including direct sales, call centers, websites, brokersreferrals from friends and brick-and-mortar stores.family. Through its broad range of service offerings and value propositions, RetailNRG is able to attract, retain, and increase the value of its customer relationships. Retail'sNRG's brands are recognized for exemplary customer service, innovative smart energy and technology product offerings, and environmentally friendlyenvironmentally-friendly solutions.
IncludedThe Company provides power and natural gas to the business-to-business markets in Retail is the Company's Business Solutions group, which includesNorth America, as well as retail services, including demand response, commodity sales, energy efficiency and energy management solutions. Ansolutions to Business customers. The Company is an integrated provider of supply and distributed energy resources Business Solutionsand focuses on distributed products and services as businesses seek greater reliability, cleaner power orand other benefits that they cannot obtain from the grid. These solutions include system power, distributed generation, solar and windrenewable products, carbon management and specialty services, backup generation, storage and distributed solar, demand response, and energy efficiency and advisory services. In providing on-site energy solutions, the Company often benefits from its ability to supply energy products from its wholesale generation portfolio to commercialBusiness customers.
Market Operations
Market Operations has two primary objectives: (i) to supply energy to our customers in the most cost-efficient manner; and industrial retail customers. In 2018, Business Solutions delivered approximately 21 TWhs of electricity and managed approximately 2,000 MWs of demand response positions across its portfolio.
Generation
The Company’s wholesale power generation business includes plant operations, commercial operations, EPC, asset management, energy services and other critical related functions.
The wholesale generation business is capital-intensive and commodity-driven with numerous industry participants that compete on(ii) to maximize the basisvalue of the location of their plants, fuel mix, plant efficiencyCompany's assets after satisfying its customer load requirements. These objectives are intended to reduce supply costs and reliability services. The Company owns a diversified power generation portfoliomaximize earnings with approximately 23,000(a) MW of fossil fuel, nuclear and renewable generation capacity at 37 plants as of December 31, 2018. In addition, the Company operates approximately 8,200 MW of coalpredictable cash flows.
Power and natural gas generation at 17 plants on behalf of third parties as of December 31, 2018. The Company's power generation assets are diversified by fuel-type, dispatch level and region, which helps mitigate the risks associated with fuel price volatility andtwo main commercial groups within market demand cycles. NRG's U.S. baseload and intermediate facilities provide the Company with a significant source of cash flow. Many of NRG's generation facilities are located near population centers, which often translates into higher revenue. Additionally, NRG's peaking facilities provide opportunities to capture significant upside potential during periods of high demand, which typically drive higher energy prices.operations.



(a)    excluding discontinued operations and held for sale

Wholesale power generation is a regional business that is currently highly fragmented and diverse in terms of industry structure. As such, there is a wide variation in terms of the capabilities, resources, nature and identities of the companies the Company competes with depending on the market. Competitors include regulated utilities, municipalities, cooperatives, other independent power producers, and power marketers or trading companies, including those owned by financial institutions. Many of the Company's generation assets, however, are located within densely populated areas that tend to have higher wholesale pricing as a result of relatively favorable local supply-demand balance. The Company believes that its extensive generation portfolio provides asset optimization opportunities. NRG continuously evaluates opportunities for development of new generation, on both a merchant and contracted basis.



NRG OperationsPower
The NRG businesses described above are supported throughpower commercial group is responsible for end-use electricity supply including power plant optimization and certain fuel supply. To meet the NRG operational infrastructure, which begins with the Company’s asset fleet and the associated commercial and retail operations. The images below illustrate NRG's U.S. power generation, net capacity and retail capabilities as of December 31, 2018, excluding discontinued operations:
a2018operationcharts08.jpg

The following table summarizes NRG's global generation portfolio as of December 31, 2018:
  
Global Generation Portfolio(a)(b)(c)
  (In MW)
  Generation    
Generation Type 
Texas(f)
 
East/West(d)(e)
 Other Total Global
Natural gas 4,739
 5,248
 
 9,987
Coal 4,174
 3,745
 
 7,919
Oil 
 3,621
 
 3,621
Nuclear 1,126
 
 
 1,126
Wind 
 75
 
 75
Utility Scale Solar 
 322
 
 322
Battery Storage & Distributed Solar 2
 
 60
 62
Total generation capacity 10,041
 13,011
 60
 23,112
(a) All Utility Scale Solar and Distributed Solar facilities are described in MW on an alternating current basis. MW figures provided represent nominal summer net MW capacity of power generated as adjusted for the Company's owned or leased interest excluding capacity from inactive/mothballed units
(b) The NRG Yield Inc. and the Renewables Platform businesses, which represented 3,428 MW of global generation, were sold on August 31, 2018
(c) Excludes the South Central Portfolio, except for Cottonwood, which was sold on February 4, 2019, as well as the 528 MW natural gas-fired project in Carlsbad, California that was sold on February 27, 2019
(d) Includes the 1,263 MW Cottonwood facility that was sold to Cleco on February 4, 2019, which the Company is leasing until 2025
(e) Includes International and Renewables
(f) Does not include plants outside of the ERCOT market or the Sherbino wind farm, which are included in East/West

The Company has the advantage of being able to supply its retail businesses with its own generation, which can reduce the need to sell and buy power from other institutions and intermediaries, resulting in lower transaction costs and credit exposures. This combination of generation and retail allows for a reduction in actual and contingent collateral, through offsetting transactions and by reducing the need to hedge the retail power supply through third parties.
The generation and retail combination also provides stability in cash flows, as changes in commodity prices generally have offsetting impacts between the two businesses. This offsetting nature, in relation to changes in market prices, is an integral part of NRG's goal of providing a reliable source of future cash flow for the Company.
NRG's portfolio diversification and commercial operations hedging strategy provides the Company with reliable future cash flows. NRG has hedged a portion of its coal and nuclear capacity with decreasing hedge levels through 2022. In addition, NRG's cleared capacity revenues not only enhance the reliability of future cash flows but are not correlated to natural gas prices during the contracted period. As of December 31, 2018, the Company had purchased fuel forward under fixed price contracts, with contractually-specified price escalators, for approximately 68% of its expected coal requirement from 2019 to 2020. The Company enters into additional hedges when it believes market conditions are favorable.

Commercial Operations Overview
NRG seeks to maximize profitability and manage cash flow volatility through the marketing, trading and sale of energy, capacity and ancillary services into spot, intermediate and long-term markets and through the active management and trading of transmission rights, emissions allowances, renewable energy credits, fuel supplies and transportation-related services. The Company's principal objectives, are the realization of the full market value of its overall portfolio, including the capture of its extrinsic value, the management and mitigation of commodity market risk and the reduction of cash flow volatility over time.
NRG enters into supply, contracts, power and gas sales and hedging arrangementsagreements via a wide range of products and contracts, including PPAs,(i) physical and financial commodity instruments, (ii) fuel supply and transportation contracts, (iii) renewable PPAs and (iv) capacity auctions, natural gas derivative instruments and other financial instruments. contracted revenue sources, as further discussed below.
9

In addition, because changes in power prices in the markets where NRG operates are generally correlated to changes in natural gas prices, NRG uses hedging strategies that may include power and natural gas forward purchases and sales contracts to manage the commodity price risk. The objective of these hedging strategies is to stabilize the cash flow generated by NRG's overall portfolio.

Physical and Financial Commodity Instruments
In addition to power purchases and sales and hedging arrangements, NRG trades electric power, natural gas and related commoditycommodities, environmental products, weather products and financial products, including forwards, futures, options and swaps. NRG enters into these instruments primarily to manage price and delivery risk, optimize physical and contractual assets in the portfolio, manage working capital requirements, reduce the carbon exposure in its business and comply with laws.
Fuel Supply and Transportation Contracts
NRG's fuel requirements consist of various forms of fossil fuel and nuclear fuel. The prices of fossil fuels can be volatile. The Company seeksobtains its fossil fuels from multiple suppliers and through multiple transporters. Although availability is generally not an issue, localized shortages, transportation availability, delays arising from extreme weather conditions and supplier financial stability issues can and do occur. The preceding factors related to generate profits from volatility in the pricesources and availability of electricity, capacity, fuelsraw materials are fairly uniform across the Company's business and transmission congestion by buyingfuel products used. NRG's primary fuel requirements consist of the following:
Natural Gas — NRG operates a fleet of mid-merit and selling contracts in wholesale markets under guidelines approvedpeaking natural gas plants. Fuel needs are managed by the Company's risk management committee.
Retail Operations
NRG's retail businesses sell electricity to residential,natural gas commercial and industrial consumers at either fixed, indexed or variable prices. Residential and smaller commercial consumers typically contractgroup, on a spot basis, especially for terms ranging from one month to five years while industrial contracts are often between one year and five years in length. In 2018, NRG's retail businesses sold approximately 67 TWhs of electricity and 11 MDth of natural gas. In any given year, the quantity of TWhs and MDth sold can be affected by weather, economic conditions and competition. The wholesale supply is typically purchasedpeaking assets, as the anticipated loadCompany does not believe it is contracted fromprudent to forward purchase natural gas for these types of units as the dispatch is highly unpredictable.
Coal —NRG actively manages its coal requirements based on forecasted generation, market volatility and its inventory on site. The Company believes it is adequately hedged, using forward coal supply agreements, for its domestic coal consumption for 2022. As of December 31, 2021, NRG had purchased forward contracts to provide fuel for approximately 88% of the Company's expected requirements for 2022 and 2023. For the domestic fleet, NRG purchased approximately 16.1 million tons of coal in 2021, almost all of which was Powder River Basin coal. For fuel transport, NRG has entered into various rail transportation and rail car lease agreements with varying tenors that will provide for most of the Company's transportation requirements of Powder River Basin coal for the next three years.
Nuclear Fuel — STP's owners, including NRG, satisfy their fuel supply requirements by: (i) acquiring uranium concentrates and contracting for conversion of the uranium concentrates into uranium hexafluoride; (ii) contracting for enrichment of uranium hexafluoride; and (iii) contracting for fabrication of nuclear fuel assemblies. Through its proportionate participation in STPNOC, which is the NRC-licensed operator of STP that is responsible for all aspects of fuel procurement, NRG is party to a combinationnumber of NRG's wholesale portfoliolong-term forward purchase contracts with many of the world's largest suppliers covering STP's requirements for uranium concentrates with only approximately 25% of STP's requirements outstanding for the duration of the original operating license (through 2027/2028). Similarly, STP has begun the process of covering fuel supply requirements into the extended license period and has secured a fabrication contract with Westinghouse through 2047/2048. Other fuel requirements such as uranium, conversion and enrichment remain open at this time.
Renewable PPAs
The Company's strategy is to procure mid to long-term renewable generation through power purchase agreements. As of December 31, 2021, NRG has entered into PPAs totaling approximately 2.6 GW with third-party project developers and other third parties.counterparties. The abilityaverage tenor of these agreements is twelve years. The Company expects to choose supply fromcontinue evaluating and executing similar agreements that support the market orneeds of the Company's portfolio allows for an optimal combination to support and stabilize retail margins.business. The total GW entered into through PPAs may be impacted by contract terminations when they occur.
Capacity and Other Contracted Revenue Sources
NRG's revenues and cash flows, primarily in the East and West, benefit from capacity/demand payments and other contracted revenue sources, originating from market clearing capacity prices, Resource Adequacyresource adequacy contracts, tolling arrangements and other long-term contractual arrangements:arrangements.
Capacity auctions The Company's largest sources of continuing capacity revenues are capacity auctions in PJM and ISO-NE. BothNYISO. PJM and ISO-NE operateoperates a pay-for-performance model where capacity payments are modified based on real-time performance whereand NRG's actual revenues will be the combination of revenues based on the cleared auction MWsMW plus the net of any over- and under-performance of NRG's fleet.respective generation assets. The Company primarily sells physical and financial capacity forward through bilateral contracts for our New York state assets. To the extent NRG is not able to enter into physical bilateral contracts, NRG will sell the remaining capacity into the NYISO six-month strip, monthly or spot auctions.
2021/2022 PJM Auction Results — On May 23, 2018, PJM announced the results of its 2021/2022 base residual auction. NRG cleared approximately 4,619 MW of Capacity Performance product for the generation fleet. NRG's expected capacity revenues from the base residual auction for the 2021/2022 delivery year are approximately $322 million. The table below provides a detailed description of NRG’s 2021/2022 base residual auction results from May 23, 2018:
10

  Generation
Zone Cleared Capacity (MW) Price ($/MW-day)
COMED 3,995 $195.55
EMAAC 552 $165.73
PEPCO 72 $140.00
Total 4,619  
NRG through its demand response business received a capacity award of 3,194 MWs at a volume weighted average price of $155.16 per MW-day, or $181 million of revenue, and pays out a portion of these revenues to our customers reflected as cost of sales.
2022/2023 ISO-NE Auction Results - On February 6, 2019 ISO-NE announced the results of its 2022/2023 forward capacity auction. NRG cleared 1,517 MW of capacity. NRG's expected capacity revenues from the auction for the 2022/2023 delivery year are approximately $69 million.

Resource adequacy and bilateral contractsIn California, there is a resource adequacy requirement whichthat is primarily satisfied through bilateral contracts. Such bilateral contracts are typically short-term resource adequacy contracts. When bilateral contracting does not satisfy the resource adequacy need, such shortfalls can be addressed through procurement tools administered by the CAISO, including the capacity procurement mechanism or reliability must-run contracts.
Bilateral contracts Natural Gas
The natural gas commercial group is responsible for all costing, logistics and supply for all of NRG's residential, commercial & industrial and wholesale customers. The Direct Energy acquisition, which closed on January 5, 2021, significantly increased our capabilities and scale across the natural gas value chain. NRG has acquired contractual rights to natural gas transportation and storage assets across its footprint that allow for optimal supply economics in support of our various businesses. Our diversified load coupled with this asset portfolio enables us to deliver supply economically while providing incremental optimization activities when market conditions allow. The scale of the natural gas operation extends from the wellhead (through our producer services business) to our end use customers (through our various sales channels). This scale, coupled with our associated assets, gas system platform and people, create significant opportunity across North America.
Plant Operations
The Company enters into physical power bilateral contracts for the sale of energy from ourowns and leases a diversified wholesale generation fleet as part of the Company's portfolio optimization strategy. Counterparties to the contracts are either third parties or our Retail segment. The Company primarily sells physical capacity forward through bilateral contracts for our New York assets. To the extent NRG is not able to enter into a physical bilateral contract, NRG will sell the remaining capacity into the NYISO six month strip, monthly or spot auctions.
Fuel Supply and Transportation
NRG's fuel requirements consist of various formswith approximately 18,000 MW of fossil fuel, (including coal, natural gasnuclear and oil) and nuclear fuel. The prices of fossil fuels are highly volatile. The Company obtains its fossil fuels from multiple suppliers and through multiple transporters. Although availability is generally not an issue, localized shortages, transportation availability, delays arising from extreme weather conditions and supplier financial stability issues can and do occur. The preceding factors related to the sources and availability of raw materials are fairly uniform across the Company's businesses and fuel products used.
Coal — The Company believes it is adequately hedged, using forward coal supply agreements, for its domestic coal consumption for 2019. NRG actively manages its coal requirements based on forecastedrenewable generation market volatility and its inventory on site. Ascapacity at 25 plants as of December 31, 2018,2021, including approximately 1,600 MW of its PJM coal fleet with an announced retirement date of June 2022. The Company's wholesale generation assets are diversified by fuel-type and dispatch level, which helps mitigate the risks associated with fuel price volatility and market demand cycles. NRG had purchased forward contractscontinually evaluates its generation portfolio to provide fuel for approximately 68%focus on asset optimization opportunities and the locational value of its generation assets in each of the Company's expected requirements from 2019 through 2020. NRG purchased approximately 23 million tons of coal in 2018, almost all of which was Powder River Basin coal. For fuel transport, NRG has entered into various rail and barge transportation and rail car lease agreements with varying tenures that provide for most ofmarkets where the Company's transportation requirements of Powder River Basin coalCompany participates, as well as opportunities for the next 2 years.development of new generation.
The following table shows the percentage of the Company's coal requirements from 2019 through 2020 that have been purchased forwardsummarizes NRG's generation portfolio as of December 31, 2018:2021:
(In MW)(a)
TypeTexasEastWest/Services/OtherTotal
Natural gas4,775 1,881 1,494 8,150 
Coal4,174 3,140 605 7,919 
Oil— 455 — 455 
Nuclear1,132 — — 1,132 
Utility Scale Solar— — 219 219 
Battery Storage— — 
Total generation capacity10,083 5,476 2,318 17,877 
 
Percentage of
Company's
Requirement 
2019100%
202036%
(a)All Utility Scale Solar are described in MW on an alternating current basis. MW figures provided represent nominal summer net MW capacity of power generated as adjusted for the Company's owned or leased interest.

Plant Operations is responsible for operating the Company's generation facilities at the highest standards of safety and reliability, and includes (i) operations and maintenance, (ii) asset management, and (iii) development, engineering and construction.
Natural Gas — Operations & Maintenance
NRG operates a fleet of mid-merit and peaking natural gas plants across allmaintains its U.S. wholesale regions. Fuel needs are managed on a spot basis, especially for peaking assets, as the Company does not believe it is prudent to forward purchase natural gas for these types of units, the dispatch of which is highly unpredictable. The Company contracts for natural gas storage servicesgeneration portfolio, as well as approximately 7,377 MW of additional coal and natural gas transportation servicesgeneration capacity at 12 plants operated on behalf of third parties as of December 31, 2021 using prudent industry practices for the safe, reliable and economic generation of electricity in compliance with all local, state and federal requirements. The Company follows a consistent set of operating requirements, including a solid base of training, required adherence to deliver natural gas when needed.specific safety and environmental limits, procedure and checklist usage, and the implementation of continuous process improvement through incident investigations.
Nuclear Fuel — STP's owners satisfy their fuel supply requirements by: (i) acquiring uranium concentratesNRG uses best-in-class maintenance practices for preventive, predictive, and contractingcorrective maintenance planning. The Company’s strategic planning process evaluates equipment condition, performance, and obsolescence to support the development of a comprehensive work scope and schedule for conversion of the uranium concentrates into uranium hexafluoride; (ii) contracting for enrichment of uranium hexafluoride; and (iii) contracting for fabrication of nuclear fuel assemblies. Through its proportionate participation in STPNOC, which is the NRC-licensed operator of STP and responsible forlong-term performance.
11

Asset Management
NRG manages all aspects of fuel procurement, NRG is partyits generation portfolio to a number of long-term forward purchase contracts with manyoptimize the lifecycle value of the world's largest suppliers covering STP's requirementsassets, consistent with the Company’s goals. The Company evaluates capital projects required for uranium concentrates with only approximately 25% of STP's requirements outstanding for the durationcontinued operation and strategic enhancement of the original operating license. Similarly, NRG is party toassets, provides quality assurance on capital outlays, and assesses the impact of rules, regulations, and laws on business profitability. In addition, the Company manages its long-term contracts, PPAs, and real estate holdings and provides third party asset management services.
Development, Engineering & Construction
NRG develops, engineers and executes major plant modifications, “new build” generation and energy storage projects that enhance the value of its generation portfolio and provide options to procure STP's requirements for conversionmeet generation growth needs in the retail markets we serve, in accordance with the Company’s strategic goals. Projects have included gas-fired generation development and enrichment servicesconstruction, coal to gas conversions, grid scale energy storage development, grid scale renewable construction, and fuel fabrication for the life of the operating license. Since the operating license was renewed for another 20 years in September 2017, STPNOC has begun to review a second phase of fuel purchasing.

asset demolition, remediation and reclamation work.
Operational Statistics
Retail
The following are industry statistics forrepresent the Company's customer count,retail load and economic gross margin per MWh:customer count:
 Year ended December 31,
 202120202019
Sales volumes - Electricity (in GWh)
Home - Texas42,397 38,473 38,958 
Home - East14,108 10,221 9,918 
Home - West/Services/Other2,252 — — 
Business - Texas34,367 17,928 18,976 
Business - East53,204 1,596 1,214 
Business - West/Services/Other10,625 — — 
Total Load156,953 68,218 69,066 
Sales volumes - Natural gas (in MDth)
Home - East74,920 23,509 23,359 
Home - West/Services/Other97,272 — — 
Business - East1,595,533 — — 
Business - West/Services/Other109,021 — — 
Total Load1,876,746 23,509 23,359 
12

 Years ended December 31,
 2018 2017 2016
      
Sales volumes (in GWh)
     
Mass electricity - Texas37,846
 36,169
 35,102
Mass electricity - All other regions7,968
 6,221
 6,764
C&I electricity - Texas20,192
 19,586
 17,540
C&I electricity - All other regions984
 814
 1,366
Total Load66,990
 62,790
 60,772
      
Customer count - Electricity (in thousands)
     
      Texas     
Average Retail Mass2,176
 2,139
 2,058
Ending Retail Mass2,291
 2,159
 2,102
     All other regions
     
Average Retail Mass790
 675
 679
Ending Retail Mass903
 673
 671
      
Customer count - Natural gas (in thousands)
     
Average Retail Mass64
 11
 8
Ending Retail Mass99
 15
 9
      
Gross margin and economic gross margin     
Gross margin (in millions)
$2,055
 $1,778
 $2,006
Economic gross margin (in millions)
1,802
 1,602
 1,649
Gross margin per MWh30.68
 28.32
 33.01
Economic gross margin per MWh26.91
 25.51
 27.13
      
Customer contract mix     
Term65% 70% 70%
Variable25% 22% 23%
Indexed10% 8% 7%
 100% 100% 100%








Generation
 Year ended December 31,
 202120202019
Customer count - Electricity customers(a)(b) (in thousands)
      Home - Texas
Average retail3,055 2,449 2,358 
Ending retail3,024 2,451 2,450 
     Home - East
Average retail1,484 1,019 990 
Ending retail1,402 970 1,070 
Home - West/Services/Other
Average retail510 — — 
Ending retail498 — — 
Customer count - Natural gas customers(b) (in thousands)
     Home - East
Average retail360 156 122 
Ending retail364 166 158 
Home - West/Services/Other
Average retail452 — — 
Ending retail434 — — 
Total Customer count
Average retail - Home5,861 3,624 3,470 
Ending retail - Home5,722 3,587 3,678 
(a) Includes services customers
(b) Dual fuel customers are included within electricity customer counts only
The following are industry statistics for the Company's fossil and nuclear plants, as defined by the NERC, and are more fully described below:NERC:
Annual Equivalent Availability Factor, or EAF — Measures the percentage of maximum generation available over time as the fraction of net maximum generation that could be provided over a defined period of time after all types of outages and deratings, including seasonal deratings, are taken into account.
Net Heat Rate — The net heat rate represents the total amount of fuel in BTU required to generate one net kWh provided.
Net Capacity Factor — The net amount of electricity that a generating unit produces over a period of time divided by the net amount of electricity it could have produced if it had run at full power over that time period. The net amount of electricity produced is the total amount of electricity generated minus the amount of electricity used during generation.generation by the station.
The tables below presentpresents these performance metrics for the Company's global power generation portfolio, including leased facilities, and those accounted for through equity method investments, for the years ended December 31, 20182021 and 2017:2020:
 Year Ended December 31, 2021
Fossil and Nuclear Plants (a)
 
Net Owned
Capacity (MW) (b)
Net Generation (In thousands of MWh) (a)
Annual Equivalent Availability FactorAverage Net Heat Rate BTU/kWh
Net Capacity
Factor
Texas10,083 36,920 70.6 %10,717 42.4 %
East5,476 7,494 79.8 %11,877 8.8 %
West/Services/Other2,318 7,949 88.0 %7,337 47.2 %
 Year Ended December 31, 2018
     
Fossil and Nuclear Plants (a)
 
Net Owned
Capacity (MW)
 
Net Generation (MWh) (In thousands) (a)
 Annual Equivalent Availability Factor Average Net Heat Rate BTU/kWh 
Net Capacity
Factor
          
Generation         
Texas10,161
 38,214
 85.2% 10,423
 44.7%
East/West/Other (b)
13,037
 21,089
 82.8% 9,711
 17.8%
Other (c)
60
        
13

 Year Ended December 31, 2017
     
Fossil and Nuclear Plants (a)
 
Net Owned
Capacity (MW)
 
Net Generation (MWh) (In thousands) (a)
 Annual Equivalent Availability Factor Average Net Heat Rate BTU/kWh 
Net Capacity
Factor
  
Generation         
Texas10,159
 38,694
 90.4% 10,490
 45.0%
East/West/Other (b)
14,594
 21,338
 84.7% 9,738
 16.4%
Other (c)
114
        

Year Ended December 31, 2020
Fossil and Nuclear Plants (a)
 Net Owned
Capacity (MW)
Net Generation (In thousands of MWh) (a)
Annual Equivalent Availability FactorAverage Net Heat Rate BTU/kWh
Net Capacity
Factor
Texas10,082 31,385 76.0 %10,781 35.9 %
East9,482 4,102 81.7 %12,329 4.8 %
West/Services/Other3,234 9,171 88.0 %7,338 52.3 %
(a)Net generation excludes equity method investments
(b)Includes International, NRG renewable assets, Sherbino and the 1,263 MW Cottonwood facility, which NRG will lease back
(c)The net capacity figure within "Other" includes the aggregate production capacity of installed and activated residential solar energy systems
(a)Excludes equity method investments
The generation performance by region for the three years ended December 31, 2018, 20172021, 2020 and 2016,2019 is shown below:
Net Generation
 (In thousands of MWh)202120202019
Texas
Coal18,876 15,701 21,985 
Gas8,846 6,006 6,315 
Nuclear (a)
9,198 9,678 9,695 
Total Texas36,920 31,385 37,995 
East
Coal5,774 1,888 4,435 
Oil201 322 209 
Gas1,519 1,892 2,269 
Total East (b)
7,494 4,102 6,913 
West/Services/Other
Gas7,941 9,165 9,450 
Renewables12 
Total West/Services/Other (c)
7,949 9,171 9,462 
Total generation performance52,363 44,658 54,370 
 Net Generation
 2018 2017 2016
 (In thousands of MWh)
Generation     
Texas     
Coal24,781
 24,757
 21,738
Gas4,415
 4,428
 6,379
Nuclear (a)
9,018
 9,509
 9,559
Total Texas38,214
 38,694
 37,676
East/West     
Coal7,965
 8,403
 9,931
Oil544
 319
 318
Gas11,797
 10,949
 11,671
Renewables783
 1,667
 1,828
Total East/West21,089
 21,338
 23,748
(a)MWh information reflects the Company's undivided interest in total MWh generated by STP

Greenhouse Gas Emissions — NRG emits CO2 and small quantities of other GHGs (0.6% of total) when generating electricity at a majority of its facilities. The graphs presented below illustrate NRG's domestic emissions of CO2e for the 2014 through 2018 period. A significant majority (>99%) of NRG's emission sources are subject to federal (U.S. EPA) GHG reporting requirements programs. From 2014 to 2018,(a)Reflects the Company's CO2e emissions decreased from 72 million metric tons to 46 million metric tons, representing a 36% reduction. The primary factor leading to the decreased emissions include reductionsundivided interest in fleet nettotal MWh generated by STP
(b)Includes gas generation due to a market-driven shift from coal as a primary fuel to natural gas. The Company's goal is to reduce CO2e emissions by 50% by 2030,of 855 thousand MWh, 870 thousand MWh and 90% by 2050, using 2014 as a baseline.
As903 thousand MWh and oil generation of December 31, 2018, less than 25% of the Company's consolidated operating revenues were derived from coal-fired operating assets.


a2018ghemisions03.jpg

The effects from federal, regional or state regulation of GHGs on the Company's financial performance will depend on a number of factors, including the outcome of the legal challenges199 thousand MWh, 322 thousand MWh and actions of the current U.S. presidential administration.


Segment Review
The Company's segment structure reflects how management currently makes financial decisions and allocates resources. The Company's businesses are segregated as follows: Retail, which includes Mass customers and Business Solutions, which includes C&I customers and other distributed and reliability products; and Generation, which includes all power plant activities, domestic and international, as well as renewables. Intersegment sales are accounted for at market. The Company has recast data from prior periods to reflect changes in reportable segments to conform to the current year presentation.
As further described in Note 3, Acquisitions, Discontinued Operations and Dispositions, the Company is treating the following businesses as discontinued operations, which have been recast to present in the corporate segment:
South Central Portfolio
NRG Yield, Inc. and its Renewables Platform
Carlsbad
GenOn

Revenues
The following table contains a summary of NRG's operating revenues by segment209 thousand MWh for the years ended December 31, 2018, 20172021, 2020 and 2016, as discussed2019, respectively, that was sold to Generation Bridge
(c)Includes gas generation of 2,445 thousand MWh, 3,002 thousand MWh, and 2,203 thousand MWh for the years ended December 31, 2021, 2020 and 2019, respectively, that was sold to Generation Bridge

Competition
While there has been consolidation in Item 15 — Note 17, Segment Reporting,the competitive retail space over the past few years, there is still considerable competition for customers. In Texas, there is healthy competition in deregulated areas and customers can choose providers based on the most appealing offers. Outside of Texas, electricity retailers compete with the incumbent utilities, in addition to other retail electric providers, which can inhibit competition depending on the consolidatedmarket rules of the state. There is a high degree of fragmentation, with both large and small competitors offering a range of value propositions, including value, rewards, and sustainability-based offerings.
Wholesale generation is highly fragmented and diverse in terms of industry structure by region. As such, there is wide variation in terms of the capabilities, resources, nature and identities of the Company’s competitors depending on the market. Competitors include regulated utilities, municipalities, cooperatives, other independent power producers, and power marketers or trading companies, including those owned by financial statements. Refer to that footnote for additional financial information about NRG's business segments including a profit measure and total assets. In addition, refer to Item 2 — Properties, to the consolidated financial statements for information about facilities in each of NRG's business segments.
 Year Ended December 31, 2018
 
Energy
Revenues
 
Capacity
Revenues
 
Retail
Revenues
 
Mark-to-
Market
Activities
 Contract Amortization 
Other
Revenues(a)
 
Total
Operating
Revenues(b)
 (In millions)
Generation$2,677
 $670
 $
 $(202) $
 $287
 $3,432
Retail
 
 7,110
 (7) 
 
 7,103
Corporate and Eliminations (b)
(1,129) 
 (5) 79
 
 (2) (1,057)
Total$1,548
 $670
 $7,105
 $(130) $
 $285
 $9,478
(a)Consists operation and maintenance revenues and unrealized trading activities, primarily at BETM (Generation segment)
(b)Energy revenues include inter-segment sales primarily between Generation and Retail
 Year Ended December 31, 2017
 
Energy
Revenues
 
Capacity
Revenues
 
Retail
Revenues
 
Mark-to-
Market
Activities
 Contract Amortization 
Other
Revenues(c)
 
Total
Operating
Revenues(d)
 (In millions)
Generation$2,725
 $618
 $
 $37
 $
 $235
 $3,615
Retail
 
 6,374
 (4) (1) 
 6,369
Corporate and Eliminations (d)
(1,089) (6) 4
 219
 
 (38) (910)
Total$1,636
 $612
 $6,378
 $252
 $(1) $197
 $9,074
(c)Consists of operation and maintenance revenues and energy service revenues, primarily at BETM (Generation segment)
(d)Energy revenues include inter-segment sales primarily between Generation and Retail
 Year Ended December 31, 2016
 
Energy
Revenues
 
Capacity
Revenues
 
Retail
Revenues
 
Mark-to-
Market
Activities
 Contract Amortization 
Other
Revenues(e)
 
Total
Operating
Revenues(f)
 (In millions)
Generation$3,243
 $642
 $
 $(565) $
 $313
 $3,633
Retail
 
 6,332
 (1) (1) 
 6,330
Corporate and Eliminations(f)
(974) (5) 36
 (70) 
 (35) (1,048)
Total$2,269
 $637
 $6,368
 $(636) $(1) $278
 $8,915
(e) Consists of operation and maintenance revenues and energy service revenues, primarily at BETM (Generation segment)
(f) Energy revenues include inter-segment sales primarily between Generation and Retail




institutions.
Seasonality and Price Volatility
The sale of power and natural gas to retail customers are seasonal businesses with the demand for power generally peaking during the summer, and the demand for natural gas generally peaking during the winter. As a result, net working capital requirements for the Company's retail operations generally increase during summer and winter months along with the higher revenues, and then decline during off-peak months. Weather may impact operating results and extreme weather conditions could have a material impact. The rates charged to retail customers may be impacted by fluctuations in total power
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prices and market dynamics, such as the price of natural gas, transmission constraints, competitor actions, and changes in market heat rates.
Annual and quarterly operating results of the Company's wholesale power generation segmentsportfolio can be significantly affected by weather and energy commodity price volatility. Significant other events, such as the demand for natural gas, interruptions in fuel supply infrastructure and relative levels of hydroelectric capacity can increase seasonal fuel and power price volatility. The preceding factors related to seasonality and price volatility are fairly uniform across the Company's wholesale generation business segments.
The sale of electric power to retail customers is also a seasonal business withregions in which the demand for power generally peaking during the summer months. As a result, net working capital requirements for the Company's retail operations generally increase during summer months along with the higher revenues, and then decline during off-peak months. Weather may impact operating results and extreme weather conditions could materially affect results of operations. The rates charged to retail customers may be impacted by fluctuations in total power prices and market dynamics like the price of natural gas, transmission constraints, competitor actions, and changes in market heat rates.Company operates.

Market Framework
Retail
NRG's retail businesses sell energyNRG sells electricity, natural gas and related services as well as portable powerproducts and battery solutionsservices to customers acrossthroughout the country.U.S. and Canada. In most of the states and regions that have introduced retail consumer choice, NRG's retail businessesNRG competitively offer retail power,offers electricity, natural gas, portable power and other value-enhancing services to end-use customers. Each retail consumer choice state or province establishes its own retail competition laws and regulations, and the specific operational, licensing, and compliance requirements vary on a state-by-state basis. In the East markets, incumbent utilities currently provide default service and as a result typically serve a majority of residential customers. In Texas, NRG’s retail business activities are subject to standards and regulations adopted by the PUCT and ERCOT, including the requirement for retailers to be certified by the PUCT in order to contract with end-users to sell electricity. A majority of the retail load is in the ERCOT market region and is served by competitive retail suppliers, except certain areas that are served by municipal utilities and electric cooperatives that have not opted into competitive choice.state or province. Regulated terms and conditions of default service, as well as any movement to replace default service with competitive services, as is done in ERCOT, can affect customer participation in retail competition. In Canada, NRG sells energy and related services to residential and commercial customers in the province of Alberta pursuant both to a regulated rate service governed by provincial regulations as well as a competitive service with rates set by market forces. Sales of energy to commercial customers take place in other provinces as well. The attractiveness of NRG's retail offerings in each state may be impacted by the rules, regulations, market structure and communication requirements from public utility commissions in each state across the country.
Wholesaleand province.
NRG's fleet of power plants which it owns, operates or manages are located in organized energy markets, known as RTOs or ISOs. Each organized market administers day-ahead and real-time centralized bid-based energy and ancillary services markets pursuant to tariffs approved by FERC, or in the case of ERCOT, market rules approved by the PUCT. These tariffs and rules dictate how the energy markets operate, how market participants make bilateral sales with one another, and how entities with market-based rates are compensated. Established prices reflect the value of energy at the specific location and time it is delivered, which is known as the Locational Marginal Price, or LMP.Price. Each market is subject to market mitigation measures designed to limit the exercise of locational market power. These market structures facilitate NRG's sale of power and capacity products at market-based rates.
Other than ERCOT, each of the ISO regions also operates a capacity or resource adequacy market that provides an opportunity for generating and demand response resources to earn revenues to offset their fixed costs that are not recovered in the energy and ancillary services markets. The ISOs are also responsible for transmission planning and operations.
Texas
NRG's business in Texas wholesale power generation business is locatedsubject to standards and regulations adopted by the PUCT and ERCOT(a), including the requirement for retailers to be certified by the PUCT in the ERCOT market.order to contract with end-users to sell electricity. The ERCOT market is one of the nation's largest and, historically, fastest growing power markets. ERCOT is an energy- onlyenergy-only market and has implemented market rule changes referred to as the Operating Reserve Demand Curve (ORDC)ORDC to provide pricing more reflective of higher energy value when operating reserves are scarce or constrained. The PUCT directed the implementation of the ORDC in 2014 to act as the primary scarcity pricing mechanism, with subsequent amendments made in 2019, 2020 and has modified it several times since then,2021. The majority of the retail load in the ERCOT market region is served by competitive retail suppliers, except certain areas that have not opted into competitive consumer choice and are served by municipal utilities and electric cooperatives.
East
While most of the states in the East region of the U.S. have introduced some level of retail consumer choice for electricity and/or natural gas, the incumbent utilities currently provide default service in most of the states and as a result typically serve the majority of residential customers. NRG’s retail activities in the East are subject to standards and regulations adopted by the ISOs, state public utility commissions and legislators, including as recently as January 2019.the requirement for retailers to be certified in each state in order to contract with end-users to sell electricity.




East/West



(a)The Cottonwood facility is located in Deweyville, Texas, but operates in the MISO market
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Power plants owned, operated and managed by NRG and NRG's generation and demand response assets located in the East region of the U.S. are within the control areas of ISO-NE, MISO,PJM, NYISO and PJM.MISO. Each of the market regions in the East region provides for robust competition in the day-ahead and real-time energy and ancillary services markets. Additionally, the assets in the East region receivesreceive a significant portion of itstheir revenues from capacity markets in ISO-NE, MISO, NYISO and PJM.markets. PJM and ISO-NE useuses a three-year forward capacity auction, while NYISO uses a month-ahead capacity auction. MISO has an annual auction, known as the Planning Resource Auction.auction. Capacity market prices are sensitive to design parameters, as well as additions of new capacity. Both ISO-NE and PJM operateoperates a pay-for-performance model where capacity payments are modified based on real-time generator performance. In such markets, NRG’s actual capacity revenues will be the combination of cleared auction prices times the quantity of MWsMW cleared, plus the net of any over-performance "bonus payments" and any under-performance charges. In both markets,Additionally, bidding rules allow for the incorporation of a risk premium into generator bids.
West
In the West region of the U.S., NRG operates a fleet ofowns equity interests in natural gas fired facilitiesgas-fired power plants located entirely within the CAISO footprint. The CAISO operates day-ahead and real-time locational markets for energy and ancillary services, while managing congestion primarily through nodal prices. The CAISO system facilitates NRG's sale of power, ancillary services and capacity products at market-based rates, either within the CAISO's centralized energy and ancillary service markets or bilaterally pursuant to tolling arrangements or other capacity sales with California's LSEs. The CPUC also determines capacity requirements for LSEs and for specified local areas utilizing inputs from the CAISO. Both the CAISO and CPUC rules require LSEs to contract with sufficient generation resources in order to maintain minimum levels of generation within defined local areas. Additionally, the CAISO has independent authority to contract with needed resources under certain circumstances, typically either when LSEs have failed to procure sufficient resources, or system conditions change unexpectedly.
The Company’s Agua CalienteCanada
In Canada, NRG sells to residential and Ivanpah projects are party to PPAs with PG&E. Both projects have project financing with the U.S. DOE, and Agua Caliente Borrower 1 LLC, along with Agua Caliente Borrower 2 LLC, which is owned by Clearway Energy Inc., are party to a back leverage financing related to the Agua Caliente project. On January 29, 2019, PG&E Corp. and subsidiary utility PG&E filed for Chapter 11 bankruptcy protection. For further discussion see Item 1 - Energy Regulatory Matters, Note 11 - Debt and Capital Leases and Note 15 - Investments Accounted forcommercial retail customers in Alberta under both regulated rates approved by the Equity MethodAUC as well as through competitive service. The Company's regulated rates are approved through periodic rate applications that establish rates for power and Variable Interest Entities.gas sales as well as for recovery of other costs associated with operating the regulated business. In addition, the Company sells energy to commercial customers in other provinces. All sales and operations are subject to applicable federal and provincial laws.
Energy Regulatory Matters
As participants in wholesale and retail energy markets and owners and operators of power plants, and participants in retail and wholesale energy markets, certain NRG entities are subject to regulation by various federal and state government agencies. These include the CFTC, FERC, NRC and the PUCT, as well as other public utility commissions in certain states where NRG's generatinggeneration or distributed generation assets are located. In addition, NRG is subject to the market rules, procedures and protocols of the various ISO and RTO markets in which it participates. Likewise, certain NRG entities participating in the retail markets are subject to rules and regulations established by the states and provinces in which NRG entities are licensed to sell at retail. NRG must also comply with the mandatory reliability requirements imposed by NERC and the regional reliability entities in the regions where NRG operates.
NRG's operations within the ERCOT footprint are not subject to rate regulation by FERC, as they are deemed to operate solely within the ERCOT market and not in interstate commerce. These operations are subject to regulation by the PUCT, as well as to regulation by the NRC with respect to NRG's ownership interest in STP.
Federal Energy Regulation
Complaints AheadIn March 2021, President Biden announced a framework for his "Build Back Better" initiative which includes policies to address climate change across the whole of PG&E Corporation Bankruptcy Filingthe federal government through the tax code, an energy efficiency and clean energy incentives, research and development, among other areas of focus. The "Build Back Better" initiative has taken the form of two separate bills in Congress. The $1.2 trillion "core infrastructure" bill, which contains spending on new electric vehicle charging programs, among other things, was signed into law by President Biden on November 15, 2021. The remaining priorities, commonly referred to as "Build Back Better," are being monitored by NRG as they progress through the legislative process.
State and Provincial Energy Regulation
Illinois LegislationOnIllinois enacted the Climate and Equitable Jobs Act ("CEJA") on September 15, 2021, which targets 100% clean energy by 2050. CEJA focuses on (i) decarbonization, (ii) incentives to transition coal plants into clean energy facilities and (iii) nuclear subsidies. CEJA requires non-publicly owned coal or oil electric generating units larger than 25 MWs to eliminate CO2e and copollutant emissions by January 18, 2019, NextEra filed1, 2030. Non-publicly owned electric generating units that are gas-fired, including Joliet, must eliminate CO2e and copollutant emissions, including through unit retirement or the use of 100% green hydrogen, in a petition for declaratory order requestingtimeframe ranging from January 1, 2030 to January 1, 2045 depending on certain emission rates and proximity to environmental justice communities. Furthermore, CEJA placed restrictions, with immediate effect, on gas-fired units that FERC assert its jurisdiction over PG&E's wholesale contracts priorlimits future emissions to PG&E's formal bankruptcy filing. Exelon Corporation and EDF Renewables filed similar complaints. On January 25, 2019, FERC found that ittheir historic baselines. These limits affect the total potential energy production by gas units in Illinois. PJM, the PJM Independent Market Monitor and the bankruptcy courtsIllinois Environmental Protection Agency have concurrent jurisdictionexchanged
16

correspondence to reviewobtain clarification on the implications of these restrictions. The new energy law also provides $174 million in incentives to develop solar and address the disposition of wholesale power contracts. The matter is in litigation.
State Energy Regulation
State Out-Of-Market Subsidy Proposals — NRG has opposed effortsbattery storage at coal generating sites that may be available to provide out-of-market subsidies and intends to continue opposing them in the future.   NRG has petitioned the Supreme Court of the United States to hear cases from the Seventh and Second Circuit Courts regarding ZECs in Illinois and New York, respectively. NRG is also currently participating in the NJBPU's proceeding regarding ZECs, and is involved in the informational meetings that the PA PUC is holding regarding the nuclear subsidy issue.

NRG.
Regional Regulatory Developments
NRG is affected by rule/tariff changes that occur in the ISO regions. For further discussion on regulatory developments see Item 15 — Note 22, 24, Regulatory Matters, to the Consolidated Financial Statements.
Texas
Public Utility Commission of Texas’ Actions with Respect to Wholesale Pricing and Market Design — In September 2021, the PUCT opened a rulemaking project to evaluate whether it should amend its rules to modify the High System Wide Offer cap ("HCAP") and the ORDC, which is intended to ensure prices in the competitive market appropriately reflect the value of operating reserves as the system approaches scarcity conditions. This rulemaking project concluded in December 2021, resulting in a rule amendment that lowered the HCAP to $5,000 per MWh and which expands the minimum contingency level to 3,000 MW. These two changes are broadly offsetting in their effect on overall average energy prices.
Activity on Securitization and ERCOT Pricing during Winter Storm Uri — The Texas Legislature acted to pass a variety of securitization vehicles to finance exceptionally high power and gas costs from Winter Storm Uri, including HB 4492. ERCOT subsequently filed two applications requesting the PUCT to issue Debt Obligation Orders ("DOOs") based on the legislation. On October 13, 2021, the PUCT issued DOOs authorizing ERCOT's securitization of $800 million to cover short payments and reimburse congestion revenue right account holders for amounts related to the default of market participants other than electric cooperatives Brazos and Rayburn, which are discussed below (the "Default Securitization") and $2.1 billion related to highly priced ancillary service and ORPDA during Winter Storm Uri (the "Uplift Securitization").
The DOOs require ERCOT to issue loans or securitized bonds through a bankruptcy remote special purpose entity as the borrower and distribute the proceeds to affected market participants for default-related short payments and to LSEs for certain ancillary-service and ORDPA costs using an allocation of proceeds based on an LSE's exposure to relevant costs as calculated by the LSE's prevailing load-ratio share during the period of Winter Storm Uri, and a further redistribution of proceeds initially allocated to other LSEs and customers who opt-out of securitization. In turn, ERCOT will charge non-bypassable fees related to the Default Securitization and Uplift Securitization to all qualified scheduling entities and to all LSEs (other than those that have opted-out), respectively. The Uplift Securitization provided for a one-time opt-out for certain LSEs or individual transmission-level customers who in exchange for foregoing any securitization-related proceeds likewise avoid future fees assessed by ERCOT for the use of repaying ERCOT's debt obligations. However, nearly all competitive REPs were required by the law to participate, ensuring the charge established by the law is competitively neutral. These opt-outs and calculations of the allocation of proceeds have been finalized. Based on LSE-level detail published by the PUCT on December 7, 2021, NRG will receive $689 million of Uplift Securitization proceeds, with receipt expected to occur during the second quarter of 2022. The $800 million Default Securitization was disbursed by ERCOT in November 2021, with NRG receiving $12 million.
Electric Cooperative Bankruptcy and Securitization — Of the defaults in the ERCOT market, two electric cooperatives, Brazos and Rayburn, constitute the vast majority. Brazos currently is in bankruptcy. NRG and ERCOT have both filed a proof of claim in the bankruptcy proceeding of Brazos, and Brazos has challenged ERCOT's claims in a manner that may prejudice NRG's claims against Brazos. During the fourth quarter of 2021, ERCOT filed a motion to dismiss Brazos' complaint relating to ERCOT's proof of claim, which NRG joined in support, but this motion was denied by the Bankruptcy Court, and ERCOT, NRG and certain other parties appealed. On January 11, 2022, the United States District Court for the Southern District of Texas entered an order allowing the appellants to seek direct review from the Fifth Circuit Court of Appeals of the Bankruptcy Court's decision on the motion to dismiss. On January 18, 2022, ERCOT, NRG and certain other parties filed a petition for direct review by the United States Court of Appeals for the Fifth Circuit. The Court of Appeals granted the petition on February 4, 2022. On February 7, 2022, the Bankruptcy Court entered an order granting summary judgement in favor of Brazos on whether ERCOT's sales to Brazos were in the ordinary course of Brazos' business. The Bankruptcy Court ruled that the portion of ERCOT's claims for charges incurred by Brazos after the intervention of the PUCT and ERCOT were not in the ordinary course and thus are not entitled to administrative expense status under the Bankruptcy Code. The amount and priority of ERCOT's claim for amounts incurred prior to such intervention or after such intervention ceased are issues to be determined at trial. The Bankruptcy Court's summary judgement ruling may also apply to NRG's claims again Brazos. Trial on the merits of the ERCOT proof of claim and Brazos' complaint is set to commence before the Bankruptcy Court on February 22, 2022. To the extent the Bankruptcy Court reduces or disallows claims against Brazos, this presents risk for NRG.
ERCOT's market protocols provide for short payments to be extinguished through a process of uplift, whereby the cost of defaults is allocated to all market participants, including retailers, generators, municipal and cooperative utilities, and financial traders. However, the total amount of this uplift is limited by ERCOT's current protocols of $2.5 million per month. Consequently, it would take approximately 63 years for the net short-pay balance of $1.887 billion related to Brazos to be uplifted to the market under the current market rules. NRG's undiscounted share of the uplift based on its current market share
17

is estimated to be approximately $121 million and has been short-paid $68 million. The remaining $53 million has been discounted based on the 63 year repayment term and present value of $9 million was recorded as an additional liability.
Rayburn announced that it intended to securitize the amounts owed to ERCOT and payment from such securitization is expected in the first quarter of 2022.
Reliability and Plant Operations Standards — The PUCT established a rulemaking to establish weatherization standards, and issued a notice for comments in response to provisions of Texas Senate Bill 3 ("SB3") that require mandatory standards for power generators and others within the electric-power sector. SB3 provides that the standards adopted by the PUCT be implemented by generation owners, be subject to ERCOT inspections, and that ERCOT provide asset owners with a reasonable period of time to remedy any violation. Continuing violations would be subject to an administrative penalty and a requirement that a third-party contractor assess the asset owner's weatherization plans. On August 24, 2021, Commission Staff issued a proposal of weatherization standards for publication. NRG, through its trade association, filed comments. On October 21, 2021, Commissioners of the PUCT voted to adopt the rule without substantial modifications from the proposal.
PJM
Capacity Market Reforms FilingPJM’s Variable Resource Requirement CurveOn July 9, 2021, the Court of Appeals for the D.C. Circuit issued a decision denying in part and granting in part an appeal by several PJM state consumer advocates regarding FERC’s order approving revisions to PJM’s Variable Resource Requirement Curve (“VRR”). The court upheld PJM's use of a greenfield gas-fired combustion turbine as the reference unit to establish Net Cost of New Entry ("Net CONE"). However, the court remanded back to FERC the issue of allowing generators to have a 10% adder to their offer to supply capacity in the PJM market, and on January 20, 2022, FERC issued an order removing the 10% adder. The VRR is considering various proposalsthe demand curve that represents the slope of bids in the auction that ultimately results in the price and quantity of capacity allocated to reformload-serving entities, including NRG. The VRR curve is based on several inputs, including the Net CONE. The outcome could affect PJM’s capacity market prices.
PJM Revisions to Minimum Offer Price Rule — On July 30, 2021, PJM filed proposed tariff changes at FERC to largely eliminate the current minimum offer price rules ("MOPR") except in very narrow cases. The proposal would eliminate: (i) the current MOPR for new entrant natural gas resources effective with the 2023/2024 delivery year and (ii) the expanded MOPR established in FERC's December 2019 Order to address out-of-market subsidies. On September 30, 2021, PJM's proposal went into effect by operation of law because the FERC Commissioners were split 2-2 as to the lawfulness of the change. Multiple parties filed motions for rehearing and ultimately appealed to the federal court of appeals. On December 21, 2021 and December 30, 2021, respectively, the Third Circuit Court of Appeals and the Seventh Circuit Court of Appeals issued an order holding the appeals in abeyance. The proposed revisions would allow PJM to address specific and narrow instances of buyer-side market power through subsequent filings at FERC. Any changes to the PJM capacity market including whetherconstruct may impact the outcome of future Base Residual Auctions.
PJM's ORDC Filing and Compliance Directives — On May 21, 2020, PJM proposed energy and reserve market reforms to accommodate state subsidiesenhance price formation in reserve markets, which included modifying ORDC and aligning market-based reserve products in Day-Ahead and Real-Time markets. In addition to approving PJM's proposal, FERC also directed PJM to implement a forward-looking Energy and Ancillary Services Offset to be used in PJM's capacity markets. After multiple compliance filings, parties filed appeals at the wholesale market orCourt of Appeals for the D.C. Circuit of FERC’s orders, and on August 13, 2021, FERC filed a motion and was granted a voluntary remand the case back to mitigate subsidized resources, along with other changes. Asthe agency. On December 22, 2021, FERC issued its order on voluntary remand affirming in part and reversing in part FERC's determination. Specifically, FERC reversed itself and ordered PJM to: (i) eliminate the more robust ORDC curves and reserve penalty adders and maintain the existing (lower) curves and (lower) penalty adders and (ii) restore its tariff provisions related to its prior backward-looking Energy and Ancillary Services Offset. At the direction of this process, FERC, establishedon January 21, 2022, PJM filed a compliance fling proposing a new schedule for the Base Residual Auctions.
Independent Market Monitor Market Seller Offer Cap Complaint On March 18, 2021, finding that the calculation of the default Market Seller Offer Cap was unjust and unreasonable, the Order permitted the current PJM May 2021 capacity auction for the 2022/2023 delivery rule to continue under the existing rules and set a procedural timetableschedule for parties to file briefs with possible solutions. On September 2, 2021, FERC issued an order in response to a complaint filed by the PJM Independent Market Monitor's proposal, which eliminates the Cost of New Entry-based Market Seller Offer Cap and delayedimplements a limited default cap for certain asset classes based on going-forward costs and provides for unit specific cost review by the 2019Independent Market Monitor for all other non-zero offers into the auctions. As required by the Order, PJM submitted its compliance tariff on October 4, 2021. On October 4, certain parties filed a motion for rehearing. which was denied. Multiple parties filed appeals at the Court of Appeals for the D.C. Circuit. The appeals are currently being held in abeyance. The removal of the Offer Caps may impact the outcome of future Base Residual Auction until August 2019. Decisions around harmonizing federal and state policy initiatives is a critical factor for setting future prices.Auctions.
New England
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ISO-NE Retention of Mystic Units — ISO-NE is currently engaged in extensive litigation at FERC regarding how to ensure system reliability in a gas-constrained system. In particular, FERC has approved ISO-NE's proposal to retain units at the Mystic generating station, which utilizes liquefied natural gas for fuel security. Among other things, FERC specifically will allow resources retained for fuel security to enter a zero bid in the Forward Capacity Auction. On January 2, 2019, multiple parties filed for rehearing. The motions for rehearing are pending at FERC. The outcome of this matter will potentially affect future capacity market prices.
New York
Independent Power ProducersNYISO's Revisions to the Buyer Side Mitigation Rules — On January 5, 2022, the NYISO filed its Comprehensive Mitigation Review proposing changes to the buyer-side mitigation rules. The proposal would remove certain facilities to be reviewed under the buyer-side mitigation rules to serve the goals of New York ComplaintYork's Climate Leadership and Community Protection Act, adopt a marginal capacity accreditation market design and adjust the rules surrounding installed and unforced capacity. Changes to NYISO's Buyer Side Mitigation rules may impact the outcome of future capacity auctions.
California
California Resource Adequacy ProceedingsOn March 25, 2021, the CPUC directed the state's major investor-owned utilities to engage in up to 1.5 GW of emergency procurement for 2021 and 2022 and is currently evaluating further procurement directives through 2023. In the same docket, the CPUC approved a new demand response program for use during emergency conditions. As part of the Integrated Resource Procurement docket, the CPUC approved a decision on June 24, 2021 that will require all Load Serving Entities to procure a pro rata share of 11.5 GW of new non-fossil resource adequacy from 2023 to 2026. To replace the retiring Diablo Canyon nuclear plant, this will consist largely of GHG-free energy, long-duration storage, baseload renewables and energy storage. A varietynew resource adequacy docket opened in October 2021 will consider changes to the reserve margin and qualifying capacity of generators have requesteddifferent resource types, and the CPUC and CAISO will continue to evaluate major structural reforms to the resource adequacy program in California that FERC address the market impactswould begin in 2024.
Midway-Sunset Reliability Must Run Proceeding — San Joaquin Energy, LLC, a subsidiary of out-of-market payments to existing generationNRG, owns a 50%, non-controlling interest in the NYISO. This request was promptedMidway-Sunset Cogeneration Company ("MSCC"). MSCC owns a cogeneration facility near Fellows, California and submitted mothball notices for the cogeneration facility to the CAISO in the latter half of 2020. On December 17, 2020, the CAISO Board effectively rejected the mothball notices by authorizing its staff to designate the ZEC program initiated byMSCC facility as a reliability must-run ("RMR") resource conditioned on execution of a RMR contract. On January 29, 2021, MSCC made its RMR filing at FERC. Multiple parties filed protests and on March 16, 2021, MSCC filed a response to those protests. On April 2, 2021, FERC accepted the NYSPSCRMR filing, suspended it to become effective February 1, 2021 subject to refund and established hearing and settlement judge proceedings. The parties are engaging in 2013, with various requests for FERCsettlement proceedings. On September 27, 2021, the CAISO gave notice to act since. The generators asked FERC to directMSCC extending the NYISO to require that capacity from existing generation resources that would have exitedterm of the market but for out-of-market payments be mitigated. Failure to implement buyer-side mitigation measures could result in uneconomic entry, which artificially decreases capacity prices below competitive market levels.reliability designation through December 31, 2022.
New York Public Service Commission RetailCanada
Alberta Energy Market Proceedings — On February 23, 2016, the NYSPSC issued what it refers to as its "Retail Reset" order. Among other things, the Reset Order placed a price cap on energy supply offers and imposed burdensome new regulations on customers. Various parties have challenged the NYPSC's authority to regulate prices charged by competitive suppliers, and that litigation is ongoing.
Texas
ORDC Reforms — In January 2019, the PUCT directed ERCOT to implement changesDecember 2020, prior to its scarcity pricing structure, knownacquisition by NRG, Direct Energy filed a Non-Energy Rate Application with the AUC to approve cost recovery for the 2020-2022 period. Major cost elements of this application relate to bad debt, corporate costs, and customer care and billing contracts. The Company engaged in a mediation and settlement process, and on April 20, 2021 an all-party settlement was executed, and was filed with the AUC on April 23, 2021. The AUC approved the settlement agreement on June 4, 2021. Separately, the Company received approval from the AUC of a negotiated rate settlement for its electricity focused 2020-2022 Energy Price Setting Plan which went into effect on July 1, 2021. The Company has completed the last repayment to the Balancing Pool and the Alberta government as the ORDC, which ispart of its 90-day utility bill deferral program. This program, effective March 18, 2020, was designed to increaseassist residential, farms, and small business customers who were negatively affected by COVID-19 related economic circumstances by temporarily deferring their utility bill payments. The program was also designed to mitigate bad debt risks associated with the likelihoodimplementation of scarcity pricing to support existing generation and new investment. The PUCT directed ORDC reforms to be implemented in two phases of gradually increasing magnitude. The first phase will become effective prior to the summer of 2019 and the second phase will become effective prior to the summer of 2020.

program.
Environmental Regulatory Matters
NRG is subject to numerous environmental laws in the development, construction, ownership and operation of projects.power plants. These laws generally require that governmental permits and approvals be obtained before construction and maintained during operation of power plants. Federal and state environmental laws historically have become more stringent over time. Future laws may require the addition of emissions controls or other environmental controls or impose restrictions on our operations, which could affect the Company's operations. Complying with environmental laws often involves specialized human resources and significant capital and operating expenses, as well as occasionally curtailing operations. NRG decides to invest capital for environmental controls based on the relative certainty of the requirements, an evaluation of compliance options, and the expected economic returns on capital.

A number of regulations that may affect the Company are under reviewhave been revised recently by the EPA, including ESPS for GHGs, ash storage and disposal requirements, NAAQS revisions and implementation and effluent limitation guidelines. Some of these recent revisions may, in turn, be revised by the current U.S. presidential administration. NRG will evaluate the impact of these regulations as they are revised but cannot fully predict the impact of each until anticipated revisions and legal challenges are resolved.

Air

Air
The CAA and the resultingrelated regulations (as well as similar state and local requirements) have the potential to affect air emissions, operating practices and pollution control equipment required at power plants. Under the CAA, the EPA sets NAAQS for certain pollutants including SO2, ozone, and PM2.5. Many of the Company's facilities are located in or near areas that are
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classified by the EPA as not achieving certain NAAQS (non-attainment areas). The relevant NAAQS havemay become more stringent. The Company maintains a comprehensive compliance strategy to address continuing and new requirements. Complying with increasingly stringent air regulations could require the installation of additional emissions control equipment at some NRG facilities or retiring of units if installing such controls is not economic. Significant changes to air regulatory programs affecting the Company are described below.
MATS — In 2012, the EPA promulgated standards (the MATS rule) to control emissions of HAPs from coal and oil-fired electric generating units. The rule established limits for mercury, non-mercury metals, certain organics and acid gases, which had to be met beginning in April 2015. In December 2018, the EPA proposed a finding that regulating HAPs was not "appropriate and necessary" because the costs far exceed the benefits. Nonetheless, the EPA proposed keeping the substantive requirements of the MATS rule. While NRG cannot predict the final outcome of this rulemaking, NRG believes that because it has already invested in pollution controls and cleaner technologies, the fleet is well-positioned to comply with the MATS rule.
Clean Power Plan CPP/ACE Rules — The attention in recent years on GHG emissions has resulted in federal regulations and state legislative and regulatory action.regulations. In October 2015, the EPA finalizedpromulgated the CPP, addressing GHG emissions from existing EGUs. On February 9, 2016, the U.S. Supreme Court stayed the CPP. TheIn July 2019, EPA promulgated the ACE rule, which rescinded the CPP, which had sought to broadly regulate CO2 emissions from the power sector. On January 19, 2021, the D.C. Circuit heard oral argumentvacated the ACE rule (but on the legal challenges to the CPP in September 2016. AtFebruary 22, 2021, at the EPA's request, stayed the issuance of the portion of the mandate that would vacate the repeal of the CPP). On October 29, 2021, the U.S. Supreme Court agreed to review the D.C. Circuit agreed on April 28, 2017Circuit's decision, which should provide some clarity regarding the scope of the EPA's authority to holdregulate CO2 under the case in abeyance. On October 16, 2017,Clean Air Act. The Company expects the EPA proposedto promulgate a new rule to repealregulate GHG emissions from power plants after a decision from the CPP. In August 2018, the EPA published the proposed Affordable Clean Energy, or ACE, ruleU.S. Supreme Court.
Greenhouse Gas Emissions — NRG emits CO2 (and small quantities of other GHGs) when generating electricity at a majority of its facilities. Nearly all (>99%) of NRG's domestic GHG emissions are subject to replace the CPP. The ACE rule proposes that the EPA would provide guidelines for states to in turn require heat rate improvements at coal-fired EGUsfederal (U.S. EPA) GHG reporting requirements.
NRG's climate goals are to reduce GHG emissions.greenhouse gas emissions by 50% by 2025, from its current 2014 baseline, and to achieve net-zero emissions by 2050. Greenhouse gas emissions include directly controlled emissions, emissions from NRG's purchased energy, and emissions from employee business travel. In 2021, NRG's climate goals were certified by the Science Based Targets initiative as aligned with a 1.5 degree Celsius trajectory. From the current 2014 baseline to 2021, the Company's CO2eemissions decreased from 61 million metric tons to 34 million metric tons, representing a cumulative 44% reduction. The decrease is attributed to reductions in fleet-wide annual net generation and a market-driven shift away from coal as a primary fuel to natural gas. The increase in emissions in 2021, as compared to 2020, was primarily due to higher power demand which was a result of the easing of COVID-19 pandemic lockdowns and the associated economic recovery. The Company is continuing to target a 50% reduction by 2025 and is on track to meet that goal.
As of December 31, 2021, less than 5% of the Company's consolidated operating revenues were derived from coal-fired operating assets.
The following charts reflect the Company’s domestic generation portfolio, including leased facilities and those accounted for through equity method investments. Prior year information was adjusted to remove divested assets.
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Byproducts, Wastes, Hazardous Materials and Contamination
In April 2015, the EPA finalized the rule regulating byproducts of coal combustion (e.g., ash and gypsum) as solid wastes under the RCRA. In September 2017, the EPA agreed to reconsider the rule. On July 30, 2018, the EPA promulgated a rule that amendsamended the existing ash rule by extending some of the deadlines and providing more flexibility for compliance. On August 21, 2018, the D.C. Circuit found, among other things, that the EPA had not adequately regulated unlined ponds and legacy ponds. Accordingly, we anticipate thatIn 2019 and 2020, the EPA will promulgate new regulationsproposed several changes to this rule. On August 28, 2020, the EPA finalized "A Holistic Approach to Closure Part A: Deadline to Initiate Closure," which amended the April 2015 Rule to address these issues (including compliance deadlines) as it reconsiders other aspectsthe August 2018 D.C. Circuit decision and extend some of the deadlines. On November 12, 2020, the EPA finalized "A Holistic Approach to Closure Part B: Alternative Demonstration for Unlined Surface Impoundments," which further amended the April 2015 Rule to, among other things, provide procedures for requesting approval to operate existing rule. The EPA has stated that it intends to further revise the rule. The Company will provide estimates of the cost of compliance after the rule is revised.ash impoundments with an alternate liner.
Domestic Site Remediation Matters
Under certain federal, state and local environmental laws, a current or previous owner or operator of a facility, including an electric generating facility, may be required to investigate and remediate releases or threatened releases of hazardous or toxic substances or petroleum products. NRG may be responsible for property damage, personal injury and investigation and remediation costs incurred by a party in connection with hazardous material releases or threatened releases. These laws impose liability without regard to whether the owner knew of or caused the presence of the hazardous substances, and the courts have interpreted liability under such laws to be strict (without fault) and joint and several. Cleanup obligations can often be triggered during the closure or decommissioning of a facility, in addition to spills during its operations. Further discussions of affected NRG sites can be found in Item 15 — Note 23, Environmental MattersCommitments and Contingencies, to the Consolidated Financial Statements.
Jewett Mine Lignite Contract The Company's Limestone facility historically burned lignite obtained from the Jewett mine, which was operated by TWCC. In 2019, the Jewett mine and related lignite supply agreement with NRG were acquired by Westmoreland Jewett Mining LLC ("Jewett Mining"), a subsidiary of Westmoreland Mining LLC pursuant to a plan of reorganization confirmed by the Texas Bankruptcy Court. Effective August 5, 2020, NRG's subsidiary, NRG Texas LLC, acquired all of the equity interests of Jewett Mining. Active mining under the lignite supply agreement ceased as of December 31, 2016; however, under the terms of the lignite supply agreement, Jewett Mining remains responsible for reclamation activities and NRG is responsible for all reclamation costs. NRG has recorded an adequate ARO liability. The Railroad Commission of Texas has imposed a bond obligation of approximately $99 million for the reclamation of the Jewett mine, which NRG supports through surety bonds. The cost of the reclamation may exceed the value of the bonds. NRG may provide additional performance assurance if required by the Railroad Commission of Texas.
Nuclear Waste — The federal government's program to construct a nuclear waste repository at Yucca Mountain, Nevada was discontinued in 2010. Since 1998, the U.S. DOE has been in default of the federal government's obligations to begin accepting spent nuclear fuel, or SNF, and high-level radioactive waste, or HLW, under the Nuclear Waste Policy Act. Owners of nuclear plants, including the owners of STP, had been required to enter into contracts setting out the obligations of the owners and the U.S. DOE, including the fees to be paid by the owners for the U.S. DOE's services to license a spent fuel repository. Effective May 16, 2014, the U.S. DOE stopped collecting the fees.

On February 5, 2013, STPNOC entered into a settlement agreement with the U.S. DOE for payment of damages relating to the U.S. DOE's failure to accept SNF and HLW under the Nuclear Waste Policy Act through December 31, 2013, which washas been extended three times through an addendum dated January 24, 2014,addendums to cover payments through December 31, 2016. On December 12, 2016, STPNOC received the federal government's offer of another three-year extension of payment for continued failure to accept SNF and HLW. The proposal was reviewed and accepted.2022. There are no facilities for the reprocessing or permanent disposal of SNF currently in operation in the U.S., nor has the NRC licensed any such facilities. STPNOC currently stores all SNF generated by its nuclear generating facilities in on-site storage pools. Since STPNOC's SNF storage pools do not have sufficient storage capacity for the life of the units, STPNOC is proceeding to construct dry cask storage capability on-site. STPNOC plans to continue to assert claims against the U.S. DOE for damages relating to the U.S. DOE's failure to accept SNF and HLW.
Under the federal Low-Level Radioactive Waste Policy Act of 1980, as amended in 1985, the state of Texas is required to provide, either on its own or jointly with other states in a compact, for the disposal of all low-level radioactive waste generated within the state. STP's warehouse capacityTexas is adequate for on-site storage untilcurrently in a sitecompact with the state of Vermont, and the compact low-level waste facility located in Andrews County in Texas becomes fully operational.has been operational since 2012.
Water
The Company is required under the CWA to comply with intake and discharge requirements, requirements for technological controls and operating practices. As with air quality regulations, federal and state water regulations have become more stringent and imposed new requirements.
Once Through Cooling Regulation — In August 2014, EPA finalized the regulation regarding the use of water for once through cooling at existing facilities to address impingement and entrainment concerns. While NRG anticipates that more stringent requirements will be incorporated into some of its water discharge permits over the next several years as NPDES permits are renewed, the Company anticipates the cost of complying with these restrictions to be immaterial.
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Effluent Limitations Guidelines — In November 2015, the EPA revised the Effluent Limitations Guidelines ("ELG") for Steam Electric Generating Facilities, which would have imposed more stringent requirements (as individual permits were renewed) for wastewater streams from flue gas desulfurization,FGD, fly ash, bottom ash, and flue gas mercury control. In April 2017, the EPA granted two petitions to reconsider the rule and also administratively stayed some of the deadlines. On September 18, 2017, the EPA promulgated a final rule that, (i) postponesamong other things, postponed the compliance dates to preserve the status quo for FGD wastewater and bottom ash transport water by two years to November 2020 until the EPA completes its next rulemaking and (ii) withdrewamended the April 2017 administrative stay. The legal challenges have been suspended whilerule. On October 13, 2020, the EPA reconsidersamended the 2015 ELG rule by: (i) altering the stringency of certain limits for FGD wastewater; (ii) relaxing the zero-discharge requirement for bottom ash transport water; and likely modifies(iii) changing several deadlines. On July 26, 2021, the EPA announced that it is initiating a new rulemaking to evaluate revising the ELG rule. Accordingly,While the EPA is developing the new rule, the existing rule (as amended in 2020) will stay in place, and the EPA expects permitting authorities to continue to implement the current regulation. The EPA anticipates releasing a proposed rule in fall 2022. In October 2021, NRG informed its regulators that the Company has eliminated its estimate of the environmental capital expenditures that would have been requiredintends to comply with permits incorporating the revised guidelines. The Company will revisit these estimates afterELG by ceasing combustion of coal by the rule is revised.end of 2028 at its domestic coal units outside of Texas, and installing appropriate controls by the end of 2025 at its two plants in Texas.
Regional Environmental Developments
Burton Island Old Ash Landfill Regulation in IllinoisIn January 2006, NRG's Indian River Power LLC was notifiedOn July 30, 2019, Illinois enacted legislation that it may be a potentially responsible party with respectrequires the state to Burton Island Old Ash Landfill, a historic captive landfill locatedpromulgate regulations regarding coal ash at surface impoundments. On April 15, 2021, the Indian River facility. Onstate promulgated the implementing regulation, which became effective on April 21, 2021. The new regulation requires NRG to apply for initial operating permits for its coal ash surface impoundments by October 1, 2007, NRG signed an agreement with DNREC to investigate the site through the Voluntary Clean-up Program, or the VCP. On February 4, 2008, DNREC issued findings that no further action was required31, 2021 and construction permits (for closure) starting in relation to surface water and that a previously planned shoreline stabilization project would satisfactorily address shoreline erosion. The landfill itself required a Remedial Investigation and Feasibility Study to determine the type and scope of any additional required work. DNREC approved the Feasibility Study in December 2012. In January 2013, DNREC proposed a remediation plan based on the Feasibility Study. The remediation plan was approved in October 2013. In December 2015, DNREC approved the Company's remediation design, the Company's Closure Report and the Company's Long Term Stewardship Plan. The cost of completing the work required by the approved remediation plan is consistent with amounts budgeted in early 2016 and remediation was completed in 2017. The estimated cost to comply with the Long-Term Stewardship Plan was added to the liability in 2016.
In addition to the VCP, on May 29, 2008, DNREC requested that NRG's Indian River Power LLC participate in the development and performance of a Natural Resource Damage Assessment at the Burton Island Old Ash Landfill. NRG is working with DNREC and other trustees to close out the assessment process.2022.
Customers
NRG sells to a wide variety of customers. ERCOT accounted for 11% of NRG's total revenuecustomers, primarily end-use customers in 2018.the residential, commercial and industrial sectors. The Company owns and operates power plants to generate and sell power to wholesale customers, such as utilities and other intermediaries. The Company also directly sells to end-use customers inhad no customer that comprised more than 10% of the residential, commercial and industrial sectors. NRG also receives significantCompany's consolidated revenues from PJM in its capacity as the regional transmission organization for the PJM footprint.year ended December 31, 2021.


EmployeesHuman Capital
As of December 31, 2018,2021, NRG and its consolidated subsidiaries had 4,8626,635 employees, approximately 26%13% of whom were covered by U.S. collective bargaining agreements. During 2018,2021, the Company did not experience any labor stoppages or labor disputes at any of its facilities.
NRG believes its employees are vital to its success and is committed to offering employees a rewarding career that provides opportunities for growth and the ability to make valuable contributions toward the achievement of the Company’s business objectives. NRG focuses on safety, health and wellness, diversity, equity and inclusion, talent development and total rewards for its employees.
Safety
Safety is embedded in the culture at NRG. The Company strives to begin each meeting with a safety moment and regularly reminds its employees that safety comes first. NRG has achieved its targeted top decile safety record of Occupational Safety and Health Administration recordable injury rates in each of the 5 previous years.
nrg-20211231_g3.jpg
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Health and Wellness
For several years, NRG has invested in the well-being of its employees and their families. NRG provides programs that holistically support its employees’ physical, emotional and financial wellness, allowing employees the opportunity to take control of their well-being and focus on what matters most to them for a healthy, secure future.
During 2020, the Company evaluated its approach to health and well-being in light of the circumstances resulting from the COVID-19 pandemic. In response to COVID-19, NRG implemented additional programs to provide services to support the needs of employees, including those working from home, such as programs that provided back-up childcare, expanded access to telemedicine (for both physical and mental health), and supported mental and emotional well-being through programs such as mindfulness. During 2021, the Company continued its support of employees by partnering with the National Council for Behavioral Health to roll out their Mental Health First Aid program.This program safely, respectfully and effectively opens the conversation about mental illness and addiction, encourages employees to recognize and take responsibility for their mental health, teaches managers to recognize and speak to an employee with a mental health concern before it creates performance problems, complements and supports existing benefit and wellness programs and company’s policies and procedures.
Diversity, Equity and Inclusion
NRG is committed to diversity, equity and inclusion ("DE&I") as an integral part of the Company. In 2020, NRG completed a gender and race pay equity study to ensure that the Company's pay decisions were not influenced by gender, race, or other similar factors. The study showed equitable pay practices after accounting for education, experience, performance and location. NRG also conducted company-wide unconscious bias training to help all employees recognize, understand, and reduce implicit bias and offers various other related guides and tools to its employees and management.
In 2021, the Company focused on embedding DE&I in the Company’s operations, culture and communications, by working with diverse suppliers, finding diverse talent, facilitating engagement and awareness of DE&I by employees, and committing to be accountable for our DE&I progress.
Talent Development
NRG deploys various talent development strategies and programs with the goal of ensuring a pipeline of leadership who can execute on the Company’s strategy and drive value for all stakeholders. The Board of Directors regularly engages with management on leadership development and succession planning, including providing feedback on development plans and bench strength for key senior leader positions. The Board of Directors also has a structured program that allows directors to interact directly with individuals deeper within the organization whom management, through a robust talent assessment program, as well as mentoring relationships, has identified as high potential future leaders. In 2021, the Company launched an Executive Leadership Program to strengthen the identified pipeline of future leaders and create a cohort of high potential candidates for the program. The Company has a performance management tool that emphasizes a continuous feedback loop and a robust online training curriculum with topics including leadership, communication and productivity.
Total Rewards
NRG seeks to provide the median target of compensation and benefits, benchmarked against direct peers, industry, and, where appropriate, general peers. To ensure incentives are properly aligned with business needs and can attract and retain qualified employees, the Compensation Committee of the Board of Directors actively reviews the Company's total rewards programs, including benchmarking programs against peer groups, assessing the risks of programs and evaluating the design of the annual and long-term incentive programs. The Company offers full-time employees incentives designed to motivate and reward success. NRG continues to evaluate its offerings taking into consideration the needs of its employees to ensure they are competitive and best serve its employees. Every two years, the Company engages an independent third party to benchmark its compensation and benefits programs against its peers and report the results to the Compensation Committee of the Board of Directors.
For further discussion and recent available data regarding the Company’s efforts and programs please see the Company’s 2021 Proxy Statement and 2020 Sustainability Report, which are available on the Company’s website at: www.nrg.com. Information included in these documents is not intended to be incorporated into this Form 10-K.
Available Information
NRG's annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports filed or furnished pursuant to section 13(a) or 15(d) of the Exchange Act are available free of charge through the SEC's website, www.sec.gov, and through the Company's website, www.nrg.com, as soon as reasonably practicable after they are electronically filed with, or furnished to, the SEC. The Company also routinely posts press releases, presentations, webcasts, sustainability reports and other information regarding the Company on the Company's website. The information posted on the Company's website is not a part of this report.

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Item 1A — Risk Factors
NRG's risk factors are grouped into the following categories: (i) Risks Related to the Acquisition of Direct Energy; (ii) Risks Related to the Operation of NRG's Business; (iii) Risks Related to Governmental Regulation and Laws; (iv) Risks Related to Public Health Threats; and (v) Risks Related to Economic and Financial Market Conditions, and the Company's Indebtedness.
Risks Related to the Acquisition of Direct Energy
The acquisition of Direct Energy may not achieve its intended results.
Achieving the anticipated benefits of cost savings and operating efficiencies of the acquisition is subject to a number of uncertainties, including whether the businesses of NRG and Direct Energy Inc.are integrated in an efficient and effective manner. Failure to achieve these anticipated benefits could result in increased costs, lower-than-expected revenues or income generated by the combined company and diversion of management's time and energy, which could have an adverse effect on the Company's business, financial results and prospects.
The Company will be subject to business uncertainties related to Direct Energy that could adversely affect its financial results.
Uncertainty about the effects of the acquisition of Direct Energy on employees, customers and suppliers may have an adverse effect on NRG's business. Although the Company intends to take steps designed to reduce any adverse effects, these uncertainties may impair its ability to attract, retain and motivate key personnel for a period of time, and could cause customers, suppliers and others that deal with it to seek to change existing business relationships.
Employee retention and recruitment may be particularly challenging, as employees and prospective employees may experience uncertainty about their future roles with the Company. If, despite the Company's retention and recruiting efforts, key employees depart or fail to accept employment with NRG because of issues relating to the uncertainty and difficulty of integration or a desire not to remain with NRG, the Company's financial results could be affected.
The integration of NRG and Direct Energy may disrupt or have a negative impact on the Company’s business.
The acquisition of Direct Energy is complex, and the Company will devote significant time and resources to integrating its operations with the operations of NRG. NRG could have difficulty integrating the acquired assets and personnel of Direct Energy with its own. The integration of NRG and Direct Energy may place a significant burden on management and internal resources. The diversion of management attention away from ongoing business concerns and any difficulties encountered in the transition and integration process could affect the Company's business, results of operations and financial condition. Risks that could impact the Company negatively include:
the difficulty of managing and integrating Direct Energy and its operations;
the potential disruption of the ongoing businesses and distraction of management;
changes in our business focus and/or management;
difficulties in implementing and maintaining uniform processes, systems, standards, controls, procedures, practices, policies and compensation standards;
unanticipated issues in integrating information technology, communications, and other systems;
the possibility of faulty assumptions underlying expectations regarding the integration process;
the potential impairment of relationships with employees and partners;
unforeseen expenses associated with the acquisition of Direct Energy, including delays to the integration of Direct Energy’s business as a result of the COVID-19 pandemic;
the potential difficulty in managing an increased number of locations and employees;
the potential loss of valuable employees;
difficulty addressing any possible differences in corporate cultures and management philosophies;
unanticipated changes in federal or state laws or regulations; and
the effect of any government regulations that relate to the business acquired.
If the Company is not successful in addressing these risks effectively, the business could be impacted. Many of these factors will be outside of the Company’s control, and any one of them could result in delays, increased costs, decreases in the amount of expected revenues and diversion of management’s time and energy, which could materially affect NRG’s business, results of operations and financial condition.
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Risks Related to the Operation of NRG's Business
NRG adopted and initiated the Transformation Plan. If the Transformation Plan does not achieve its expected benefits, there could be negative impacts to NRG’s business, results of operations and financial condition.

NRG adopted and initiated the Transformation Plan, designed to significantly strengthen earnings and cost competitiveness, lower risk and volatility, and create significant shareholder value. The three-part, three-year plan is comprised of the following components: (i) operations and cost excellence; (ii) portfolio optimization; and (iii) capital structure and allocation enhancements.

NRG may be unable to fully implement the components of the Transformation Plan, in which case, NRG would not realize the anticipated benefits. Alternatively, such components of the Transformation Plan, even if implemented, may not result in the anticipated benefits to NRG’s business, results of operations and financial condition in a timely manner if at all. Further, NRG could experience unexpected delays, business disruptions resulting from supporting these initiatives during and following completion of these activities, decreased productivity, adverse effects on employee morale and employee turnover as a result of such initiatives, any of which may impair NRG’s ability to achieve anticipated results or otherwise harm NRG’s business, results of operations and financial condition.

NRG's financial performance may be impacted by price fluctuations in the retail and wholesale power and natural gas markets, as well as fluctuations in coal and oil markets and other market factors that are beyond the Company's control.
Market prices for power, capacity, ancillary services, natural gas, coal and oil are unpredictable and tend to fluctuate substantially. Unlike most other commodities, electric power can only be stored on a very limited basis and generally must be produced concurrently with its use. As a result, power prices are subject to significant volatility due to supply and demand imbalances, especially in the day-ahead and spot markets. Long-Long and short-term power and gas prices may also fluctuate substantially due to other factors outside of the Company's control, including:
changes in generation capacity in the Company’s markets, including the addition of new supplies of power as a result of the development of new plants, expansion of existing plants, the continued operation of uneconomic power plants due to state subsidies, retirement of existing plants or additionaladdition of new transmission capacity;
environmental regulations and legislation;
electric supply disruptions, including plant outages and transmission disruptions;
changes in power and gas transmission infrastructure;
fuel price volatility and transportation capacity constraints or inefficiencies;
changes in law, including judicial decisions;
weather conditions, including extreme weather conditions and seasonal fluctuations, including the effects of climate change;
changes in commodity prices and the supply of commodities, including but not limited to natural gas, coal and oil;
changes in the demand for power or gas, or in patterns of power or gas usage, including the potential development of demand-side management tools and practices, distributed generation, and more efficient end-use technologies;
development of new fuels, new technologies and new forms of competition for the production of power;
fuel price volatility;
economic and political conditions;
federal, state and provincial power regulations and legislation, and regulations and actions of the ISOsISO and RTOs;
federal and state power regulations and legislation;
changes in prices related to RECs; and
changes in capacity prices and capacity markets.
While retail rates are generally designed to allow retail sellers of electricity and natural gas to pass through price fluctuations and other changes to costs, the Company may not be able to pass through all such fluctuationschanges to customers. For example, serving retail power customers in ISOs that have a capacity market exposes the Company engagesto the risk that capacity costs can change and may not be recoverable, or the Company may engage in some sales of power at fixed prices. Additionally, increases in wholesale costs to retail customers may cause additional customer defaults or increased customer attrition, or may be limitedimpacted by regulatory rules.


Further, in low natural gas price environments, natural gas can be the more cost-competitive fuel compared to coal for generating electricity. The Company enters into guaranteed supply contracts to provide for the amount of coal needed to operate its base load coal-fired generating facilities, the Company may experience periods where it holds excess amounts of coal if fuel pricing results in the Company reducing or idling coal-fired generating facilities. In addition, the Company may incur costs to terminate supply contracts for coal in excess of its generating requirements.
Such factors and the associated fluctuations in power prices have affected the Company's wholesale and retail profitability in the past and willare expected to continue to do so in the future.
SomeVolatile power and gas supply costs and demand for power and gas could adversely affect the financial performance of NRG's retail operations.
NRG's retail power operations purchase a significant portion of their supply from third parties. All of the gas sold by the Company in retail and wholesale markets is purchased from third parties. As a result, financial performance depends on the ability to obtain adequate supplies of power and gas from third parties at prices below the prices NRG charges its customers. Consequently, the Company's earnings and cash flows could be adversely affected in any period in which the wholesale power or gas prices rise at a greater rate than the rates the Company can charge to customers. The price of wholesale electricity and gas supply purchases associated with the retail operations' energy commitments can be different than that reflected in the rates charged to customers due to, among other factors:
varying supply procurement contracts used and the timing of entering into related contracts;
subsequent changes in the overall price of natural gas;
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daily, monthly or seasonal fluctuations in the price of natural gas relative to the 12-month forward prices;
transmission and transportation constraints and the Company's ability to move power or gas to its customers; and
changes in market heat rate (i.e., the relationship between power and natural gas prices).
The Company's earnings and cash flows could also be adversely affected in any period in which its customers' actual usage of electricity or gas significantly varies from the forecasted usage, which could occur due to, among other factors, weather events, changes in usage patterns, competition and economic conditions.
Substantially all of NRG's businesses operate,operates, wholly or partially, without long-term power sale agreements.
Some of NRG's businesses operate without long-term contracts. In retail, manyMany of NRG’s retail customers are contracted for a period of one year or less, and NRG may or may not hedge its retail power sales exposure, or may hedge in a manner that is not effective at managing quantity or price risk in the retail market. In generation,addition, many of NRG’s generation facilities are exposed to market risk because they operate as "merchant" facilities without long-term power sales agreements for some or all of their generating capacity and output and therefore are exposed to market fluctuations.output. Without the benefit of long-term power sales or purchase agreements, and without long-term load obligations, NRG cannot be sure that it will be able to sell or purchase power at commercially attractive rates or that its generation facilities will be able to operate profitably. This could lead to future impairments of the Company's property, plantplants and equipment, the closing of certain of its facilities or the loss of retail customers, which could have a material adverse effect on the Company's results of operations, financial condition or cash flows.
Competition may have a material adverse effect on NRG's results of operations, cash flows and the market value of its assets.
NRG has numerous competitors in all aspects of its business, and additional competitors may enter the industry. The Company's retail businesses may lose a significant number of retail customers due to competitive marketing activity by other retail electricity providers which could adversely affect the financial performance of the Company's retail businesses.
The Company's retail businessesoperations specifically face competition for customers. Competitors may offer different products, lower prices, and other incentives which may attract customers away from NRG's retail businesses.the Company. In some retail electricity markets, the principal competitor may be the incumbent utility. The incumbent utility has the advantage of long-standing relationships with its customers and strong brand recognition. Furthermore, NRG's retail businessesNRG may face competition from a number of other energy service providers, other energy industry participants, or nationally branded providers of consumer products and services, who may develop businesses that will compete with NRG.
The Company’s plant operations face competition from newer or more efficient plants owned by competitors, which may put some of the Company's plants at a disadvantage to the extent these competitors are able to consume the same or less fuel as the Company's plant. Over time, the Company's plants may be unable to compete with these more efficient plants, which could result in retirements.
NRG’s competitors may have greater liquidity, greater access to credit and other financial resources, lower cost structures, more effective risk management policies and procedures, greater ability to incur losses, longer-standing relationships with customers, greater potential for profitability from retail sales or greater flexibility in the timing of their sale of generation capacity and ancillary services than NRG does. Competitors may also have better access to subsidies or other out-of-market payments that put NRG at a competitive disadvantage.
NRG's competitors may be able to respond more quickly to new laws or regulations or emerging technologies, or devote greater resources to marketing of retail energy than NRG can. In addition, current and its retail businesses.potential competitors may make strategic acquisitions or establish cooperative relationships among themselves or with third parties. Accordingly, it is possible that new competitors or alliances among current and new competitors may emerge and rapidly gain significant market share.
There can be no assurance that NRG will be able to compete successfully against current and future competitors, and any failure to do so would have a material adverse effect on the Company's business, financial condition, results of operations and cash flow.
NRG's costs, results of operations, financial condition and cash flows could be adversely impacted by disruption of its fuel supplies.
NRG relies on natural gas, coal and oil to fuel a majority of its power generation facilities. Its retail operations can likewise be affected by changes in commodity costs. Grid operations depend on the continuing financial viability of contractual counterparties, as well as upon the infrastructure (including rail lines, rail cars, barge facilities, roadways, riverways and natural gas pipelines) available to serve generation facilities and to ensure that there is sufficient power produced to meet retail demand. As a result, the Company’s wholesale generatinggeneration facilities are subject to the risks of disruptions or curtailments in the production of power at its generation facilities if no fuel is available at any price, or if a counterparty fails to perform or if there is a disruption in the fuel delivery infrastructure. The Company’s retail operations are likewise subject to many of the same constraints.
NRG routinely hedges both its wholesale sales and purchases to support its retail load obligations. In order to hedge these obligations, the Company may enter into long-term and short-term contracts for the purchase and delivery of fuel. Many of the forward power sales contracts do not allow the Company to pass through changes in fuel costs or discharge the power sale obligations in the case of a disruption in fuel supply due to force majeure events or the default of a fuel supplier or transporter.
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Disruptions in the Company's fuel supplies or power supply arrangements may therefore require it to find alternative fuel sources at higher costs, to find other sources of power to deliver to retail customers or other counterparties at a higher cost, or to pay damages to counterparties for failure to deliver power or sell electricity or natural gas as contracted. Any such event could have a material adverse effect on the Company's financial performance.

NRG also buys significant quantities of electricityenergy and fuel on a short-term or spot market basis. Prices sometimes rise or fall significantly over a relatively short period of time. The price NRG can obtain for the sale of energy may not rise at the same rate, or may not rise at all, to match a rise in fuel or delivery costs. Retail rates may also not rise at the same rate or may not rise at all. This may have a material adverse effect on the Company's financial performance. Changes in market prices for electricity, natural gas, coal and oil may result from the following:
weather conditions;
seasonality;
demand for energy commodities and general economic conditions;
disruption or other constraints or inefficiencies of electricity, gas or coal transmission or transportation;
additional generating capacity;
availability and levels of storage and inventory for fuel stocks;
natural gas, crude oil, refined products and coal production levels;
changes in market liquidity;
federal, state and foreign governmental regulation and legislation; and
the creditworthiness and liquidity and willingness of fuel suppliers/transporters to do business with the Company.
NRG's plant operating characteristics and equipment, particularly at its coal-fired plants, often dictate the specific fuel quality to be combusted. The availability and price of specific fuel qualities may vary due to supplier financial or operational disruptions, transportation disruptions and force majeure. At times, coal of specific quality may not be available at any price or the Company may not be able to transport such coal to its facilities on a timely basis. In this case, the Company may not be able to run the coal facility even if it would be profitable. Operating a coal facility with different quality coal can lead to emission or operating problems. If the Company had sold forward the power from such a coal facility, it could be required to supply or purchase power from alternate sources, perhaps at a loss. This could have a material adverse impact on the financial results of specific plants and on the Company's results of operations.
ChangesThere may be periods when NRG will not be able to meet its commitments under forward sale or purchase obligations at a reasonable cost or at all.
The Company may sell fixed price gas as a proxy for power. Because the obligations under most of the Company's forward sale agreements are not contingent on a unit being available to generate power, NRG is generally required to deliver power to the buyer, even in the priceevent of coal and natural gas could causea plant outage, fuel supply disruption or a reduction in the available capacity of the unit. To the extent that the Company does not have sufficient lower-cost capacity to hold excess coal inventories and incur contract termination costs.
Low natural gas prices can cause natural gas to be the more cost-competitive fuel compared to coal for generating electricity. Becausemeet its commitments under its forward sale obligations, the Company enters into guaranteedwould be required to supply contractsreplacement power either by running its other, higher cost power plants or by obtaining power from third-party sources at market prices that could substantially exceed the contract price. If NRG fails to provide fordeliver the contracted power, it would be required to pay the difference between the market price at the delivery point and the contract price, and the amount of coal needed to operate its base load coal-fired generating facilities, the Company may experience periods where it holds excess amounts of coal if fuel pricing results in the Company reducing or idling coal-fired generating facilities. In addition, the Company may incur costs to terminate supply contracts for coal in excess of its generating requirements.
Volatile power supply costs and demand for power could adversely affect the financial performance of NRG's retail businesses.
Although NRG is the primary provider of its retail businesses' wholesale electricity supply requirements, the retail businesses purchase a significant portion of their supply requirements from third parties. As a result, financial performance depends on the ability to obtain adequate supplies of electric generation from third parties at prices below the prices it charges its customers. Consequently, the Company's earnings and cash flowssuch payments could be adversely affected in any period in which the retail businesses' wholesale electricity supply costs rise at a greater rate than the rates it charges to customers. The price of wholesale electricity supply purchases associated with the retail businesses' energy commitments can be different than that reflected in the rates charged to customers due to, among other factors:substantial.
varying supply procurement contracts used and the timing of entering into related contracts;
subsequent changes in the overall price of natural gas;
daily, monthly or seasonal fluctuations in the price of natural gas relative to the 12-month forward prices;
transmission constraints and the Company's ability to move power to its customers; and
changes in market heat rate (i.e., the relationship between power and natural gas prices).
The retail businesses' earnings and cash flows could also be adversely affected in any period in which its customers' actual usage of electricity significantly varies from the forecasted usage, which could occur due to, among other factors, weather events, competition and economic conditions.

NRG's trading operations and use of hedging agreements could result in financial losses that negatively impact its results of operations.operations, and NRG's hedging activities may increase the volatility in the Company's quarterly and annual financial results.
The Company typically enters into hedging agreements, including contracts to purchase or sell commodities at future dates and at fixed prices, to manage the commodity price risks inherent in its power generation and retail operations.business. The Company’s risk management policies and hedging procedures may not mitigate risk as planned, and the Company may fail to fully or effectively hedge its commodity supply and price risk. In addition, these activities, although intended to mitigate price volatility, expose the Company to other risks. When the Company sells or buys power or gas forward, it gives up the opportunity to buy or sell power at the future price, which not only may result in lost opportunity costs but also may require the Company to post significant amounts of cash collateral or other credit support to its counterparties. The Company also relies on counterparty performance under its hedging agreements and is exposed to the credit quality of its counterparties under those agreements. Further, if the values of the financial contracts change in a manner that the Company does not anticipate, or if a counterparty fails to perform under a contract, it could harm the Company's business, operating results or financial position.
NRG does not typically hedge the entire exposure of its operations against commodity price volatility. To the extent it does not hedge against commodity price volatility, the Company's results of operations and financial position may be improved or diminished based upon movement in commodity prices.
NRG may engage in trading activities, including the trading of power, fuel and emissions allowances that are not directly related to the operation of the Company's generation facilities or the management of related risks. These trading activities take place in volatile markets and some of these trades could be characterized as speculative. The Company would expect to settle these trades financially rather than through the production of power or the delivery of fuel. This trading activity may expose the Company to the risk of significant financial losses which could have a material adverse effect on its business and financial condition.
There may be periods when NRG will not be able generally attempts to meetbalance its fixed-price physical and financial purchases and sales commitments under forward sale or purchase obligations at a reasonable cost or at all.
The Company may sell fixed price gas as a proxy for power. Because the obligations under mostin terms of these agreements are not contingent on a unit being available to generate power, NRG is generally required to deliver power to the buyer, even in the event of a plant outage, fuel supply disruption or a reduction in the available capacity of the unit. To the extent that the Company does not have sufficient lower-cost capacity to meet its commitments under its forward sale obligations, the Company would be required to supply replacement power either by running its other, higher cost power plants or by obtaining power from third-party sources at market prices that could substantially exceed the contract price. If NRG fails to deliver the contracted power, it would be required to pay the difference between the market price at the delivery pointvolumes and the contract price,timing of performance and delivery obligations through the amount of such payments could be substantial.
NRG's trading operations and use of hedging agreements could resultfinancial and physical derivative contracts. These derivatives are accounted for in financial losses that negatively impact its results of operations.
The Company typically enters into hedging agreements, including contracts to purchaseaccordance with the FASB ASC 815, Derivatives and Hedging, or sell commodities at future dates and at fixed prices, to manage the commodity price risks inherent in its power generation and retail operations. These activities, although intended to mitigate price volatility, exposeASC 815, which requires the Company to other risks. Whenrecord all derivatives on the Company sellsbalance sheet at fair value with changes in the fair value resulting from fluctuations in the underlying commodity prices immediately recognized in earnings, unless the derivative qualifies for
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cash flow hedge accounting treatment or buys power forward, it gives up the opportunity to buy or sell power at the future price, which not only maya scope exception. As a result, in lost opportunity costs but also may require the Company to post significant amounts of cash collateral or other credit support to its counterparties. The Company also relies on counterparty performance under its hedging agreements and is exposed to the credit quality of its counterparties under those agreements. Further, if the values of the financial contracts change in a manner that the Company does not anticipate, or if a counterparty fails to perform under a contract, it could harm the Company's business, operatingquarterly and annual results or financial position.
NRG does not typically hedge the entire exposure of its operations against commodity price volatility. To the extent it does not hedge against commodity price volatility, the Company's results of operations and financial position may be improved or diminished based upon movementare subject to significant fluctuations caused by changes in commoditymarket prices.
NRG may engage in trading activities, including the trading of power, fuel and emissions allowances that are not directly related to the operation of the Company's generation facilities or the management of related risks. These trading activities take place in volatile markets and some of these trades could be characterized as speculative. The Company would expect to settle these trades financially rather than through the production of power or the delivery of fuel. This trading activity may expose the Company to the risk of significant financial losses which could have a material adverse effect on its business and financial condition.

NRG may not have sufficient liquidity to hedge market risks effectively.
The Company is exposed to market risks through its retail and wholesale business,operations, which involvesinvolve the purchase of electricity and natural gas for resale, the sale of energy, capacity and related products, and the purchase and sale of fuel, transmission services and emission allowances. These market risks include, among other risks, volatility arising from location and timing differences that may be associated with buying and transporting fuel, converting fuel into energy and delivering energy to a buyer.
NRG undertakes these marketingmarket activities through agreements with various counterparties. Many of the Company's agreements with counterparties include provisions that require the Company to provide guarantees, offset or netting arrangements, letters of credit, a first lien on assets and/or cash collateral to protect the counterparties against the risk of the Company's default or insolvency. The amount of such credit support that must be provided typically is based on the difference between the price of the commodity in a given contract and the market price of the commodity. Significant movements in market prices can result in the Company being required to provide cash collateral and letters of credit in very large amounts. The effectiveness of the Company's strategy may depend on the amount of collateral available to enter into or maintain these contracts, and liquidity requirements may be greater than the Company anticipates or will be able to meet. Without a sufficient amount of working capital to post as collateral in support of performance guarantees or as a cash margin, the Company may not be able to manage price volatility effectively or to implement its strategy. An increase in the amount of letters of credit or cash collateral required to be provided to the Company's counterparties may negatively affect the Company's liquidity and financial condition.
Further, if retail customers use more power or gas than expected, or if any of NRG's facilities experience unplanned outages, or if retail customers use more power than expected, the Company may be required to procure additional power or gas at spot market prices to fulfill contractual commitments. Without adequate liquidity to meet margin and collateral requirements, the Company may be exposed to significant losses, may miss significant opportunities, and may have increased exposure to the volatility of spot markets.
The accounting for NRG's hedging activities may increase the volatility in the Company's quarterly and annual financial results.
NRG engages in commodity-related marketing and price-risk management activities in order to financially hedge its exposure to market risk with respect to electricity sales from its generation assets, fuel utilized by thoserelies on storage, transportation assets and emission allowances,suppliers, which it does not own or control, to deliver natural gas.
The Company depends on natural gas pipelines and other transportation and storage facilities owned and operated by third parties to deliver natural gas to wholesale and retail markets and to provide retail energy services to customers. The Company's ability to provide natural gas for its present and projected customers will depend upon its suppliers' ability to obtain and deliver supplies of natural gas, as well as retail salesNRG's ability to acquire supplies directly from new sources. Factors beyond the control of electricity.
NRG generally attemptsthe Company and its suppliers may affect the Company's ability to balance its fixed-price physical and financial purchases and sales commitments in termsdeliver such supplies. These factors include other parties' control over the drilling of contract volumesnew wells and the timingfacilities to transport natural gas to the Company's receipt points, development of performanceadditional interstate pipeline infrastructure, availability of supply sources competition for the acquisition of natural gas, priority allocations, impact of severe weather disruptions to natural gas supplies and delivery obligations through the useregulatory and pricing policies of financialfederal and physical derivative contracts. These derivatives are accountedstate regulatory agencies, as well as the availability of Canadian reserves for in accordance withexport to the FASB ASC 815, DerivativesU.S. Energy deregulation legislation may increase competition among natural gas utilities and Hedging,impact the quantities of natural gas requirements needed for sales service. If supply, transportation or ASC 815, which requiresstorage is disrupted, including for reasons of force majeure, the ability of the Company to record all derivatives on the balance sheet at fair value with changes in the fair value resulting from fluctuations in the underlying commodity prices immediately recognized in earnings, unless the derivative qualifies for cash flow hedge accounting treatment. Whether a derivative qualifies for cash flow hedge accounting treatment depends upon it meeting specific criteria used to determine if the cash flow hedge issell and will remain appropriate for the term of the derivative. All economic hedgesdeliver its products and services may not necessarily qualify for cash flow hedge accounting treatment.be hindered. As a result, the Company's quarterly and annual results are subject to significant fluctuations causedCompany may be responsible for damages incurred by changes inits customers, such as the additional cost of acquiring alternative supply at then-current market prices.
Competition in power markets mayrates. These conditions could have a material adverse effect on NRG's results of operations, cash flows and the market value of its assets.
NRG has numerous competitors in all aspects of its business, and additional competitors may enter the industry. New parties may offer retail electricity bundled with other products or at prices that are below the Company’s rates.
Because many of the Company's facilities are older, newer plants owned by the Company's competitors are often more efficient than NRG's aging plants, which may put some of the Company's plants at a competitive disadvantage to the extent the Company's competitors are able to consume the same or less fuel as the Company's plants consume. Over time, the Company's plants may be squeezed out of their markets or may be unable to compete with these more efficient plants.
Other companies with which NRG competes may have greater liquidity, greater access to credit and other financial resources, lower cost structures, more effective risk management policies and procedures, greater ability to incur losses, longer-standing relationships with customers, greater potential for profitability from retail sales or greater flexibility in the timing of their sale of generation capacity and ancillary services than NRG does. Competitors may also have better access to subsidies or other out-of-market payments that put NRG at a competitive disadvantage.

NRG's competitors may be able to respond more quickly to new laws or regulations or emerging technologies, or to devote greater resources to marketing of retail power than NRG can. In addition, current and potential competitors may make strategic acquisitions or establish cooperative relationships among themselves or with third parties. Accordingly, it is possible that new competitors or alliances among current and new competitors may emerge and rapidly gain significant market share. There can be no assurance that NRG will be able to compete successfully against current and future competitors, and any failure to do so would have a material adverse effectimpact on the Company's business, financial condition, results of operations and cash flow.flows.
Operation of power generation facilities involves significant risks and hazards customary to the power industry that could have a material adverse effect on NRG's revenues and results of operations, and NRG may not have adequate insurance to cover these risks and hazards.
The ongoing operation of NRG's facilities involves risks that include the breakdown or failure of equipment or processes, performance below expected levels of output or efficiency and the inability to transport the Company's productproducts to its customers in an efficient manner due to a lack of transmission capacity. Unplanned outages of generating units, including extensions of scheduled outages due to mechanical failures or other problems occur from time to time and are an inherent risk of the Company's business. Unplanned outages typically increase the Company's operation and maintenance expenses and may reduce the Company's revenues as a result of selling fewer MWh or incurring non-performance penalties and/or require NRG to incur significant costs as a result of running one of its higher cost units or obtaining replacement power from third parties in the open market or running one of its higher cost units to satisfy the Company's forward power sales obligations. NRG's inability to operate the Company's plants efficiently, manage capital expenditures and costs, and generate earnings and cash flow from the Company's asset-based businesses could have a material adverse effect on the Company's results of operations, financial condition or cash flows. While NRG maintains insurance, obtains warranties from vendors and obligates contractors to meet certain performance levels, the proceeds of such insurance, warranties or performance guarantees may not be adequate to cover the Company's lost revenues, increased expenses or liquidated damages payments should the Company experience equipment breakdown or non-performance by contractors or vendors.
In addition, NRG provides plant operations and commercial services to a variety of third-parties. There is a risk that mistakes, mis-operations, or actions taken by these third-parties could be attributed to NRG, including the risk of investigation
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or penalties being assessed to NRG in connection with the services it offers, or that regulators could question whether NRG had the appropriate safeguards in place.
Power generation involves hazardous activities, including acquiring, transporting and unloading fuel, operating large pieces of rotating equipment and delivering electricity to transmission and distribution systems. In addition to natural risks such as earthquake, flood, lightning, hurricane and wind, other hazards, such as fire, explosion, structural collapse and machinery failure are inherent risks in the Company's operations. These and other hazards can cause significant personal injury or loss of life, severe damage to and destruction of property, plant and equipment, contamination of, or damage to, the environment and suspension of operations. The occurrence of any one of these events may result in NRG being named as a defendant in lawsuits asserting claims for substantial damages, including for environmental cleanup costs, personal injury and property damage and fines and/or penalties.
NRG maintains an amount of insurance protection that it considers adequate, obtains warranties from vendors and obligates contractors to meet certain performance levels, but the Company cannot provide any assurance that its insurancethese measures will be sufficient or effective under all circumstances and against all hazards or liabilities to which it may be subject. A successful claim for which the Company is not fully insured or protected could hurt its financial results and materially harm NRG's financial condition. NRG cannot provide any assurance that its insurance coverage will continue to be available at all or at rates or on terms similar to those presently available. Any losses not covered by insurance could have a material adverse effect on the Company's financial condition, results of operations or cash flows.
Supplier and/or customer concentration may expose the Company to significant financial credit or performance risks.
NRG often relies on a single contracted supplier or a small number of suppliers for the provision of fuel, transportation of fuel, chemicals and other services required for the operation of certain of its facilities. If these suppliers cannot perform, the Company utilizes the marketplace to provide these services. There can be no assurance that the marketplace can provide these services as, when and where required or at comparable prices.
The Company may also hedge a portion of its exposure to power and fuel price fluctuations through various physical or financial agreements with counterparties. Counterparties to these agreements may breach or may be unable to perform their obligations, and in case of renewable generation, such counterparties may be subject to additional risks, such as facility development and transmission risks, unfavorable weather and atmospheric conditions, and mechanical or operational failures. NRG may not be able to enter into replacement agreements on terms as favorable as its existing agreements, or at all. If the Company is unable to enter into replacement purchase agreements or other replacement hedging agreements, the Company would be exposed to market price volatility and the risk that fuel and transportation may not be available during certain periods at any price.
The failure of any supplier or customer to fulfill its contractual obligations to NRG could have a material adverse effect on the Company's financial results. Consequently, the financial performance of the Company's facilities is dependent on the credit quality of, and continued performance by, suppliers and customers.
Maintenance, expansion and refurbishment of power generation facilities involve significant risks that could result in unplanned power outages or reduced output and could have a material adverse effect on NRG's results of operations, cash flows and financial condition.
Many of NRG's facilities require periodic maintenance and repair. Any unexpected failure, including failure associated with breakdowns, forced outages or any unanticipated capital expenditures could result in reduced profitability.
NRG cannot be certain of the level of capital expenditures that will be required due to changing environmental and safety laws (including changes in the interpretation or enforcement thereof), needed facility repairs and unexpected events (such as natural disasters or terrorist attacks). The unexpected requirement of large capital expenditures could have a material adverse effect on the Company's liquidity and financial condition.
If NRG significantly modifies a unit, the Company may be required to install the best available control technology or to achieve the lowest achievable emission rates as such terms are defined under the new source review provisions of the CAA, which would likely result in substantial additional capital expenditures.

NRG and its subsidiaries have guaranteed the performance of third parties, which may result in substantial costs in the event of non-performance.
NRG and its subsidiaries have issued certain guarantees of the performance of others, which obligate NRG and its subsidiaries to perform in the event that the third parties do not perform. In the event of non-performance by the third parties, NRG could incur substantial cost to fulfill their obligations under these guarantees. Such performance guarantees could have a material impact on the operating results, financial condition, or cash flows of the Company.
Supplier and/or customer concentration at certain of NRG's facilities may expose the Company to significant financial credit or performance risks.
NRG often relies on a single contracted supplier or a small number of suppliers for the provision of fuel, transportation of fuel, chemicals and other services required for the operation of certain of its facilities. If these suppliers cannot perform, the Company utilizes the marketplace to provide these services. There can be no assurance that the marketplace can provide these services as, when and where required or at comparable prices.
At times, NRG may rely on a single customer or a few customers to purchase all or a significant portion of a facility's output, in some cases under long-term agreements that account for a substantial percentage of the anticipated revenue from a given facility. The Company has also hedged a portion of its exposure to power price fluctuations through forward fixed price power sales and natural gas price swap agreements. Counterparties to these agreements may breach or may be unable to perform their obligations. NRG may not be able to enter into replacement agreements on terms as favorable as its existing agreements, or at all. If the Company was unable to enter into replacement PPAs, the Company would sell its plants' power at market prices. If the Company is unable to enter into replacement fuel or fuel transportation purchase agreements, NRG would seek to purchase the Company's fuel requirements at market prices, exposing the Company to market price volatility and the risk that fuel and transportation may not be available during certain periods at any price.
The failure of any supplier or customer to fulfill its contractual obligations to NRG could have a material adverse effect on the Company's financial results. Consequently, the financial performance of the Company's facilities is dependent on the credit quality of, and continued performance by, suppliers and customers.
NRG relies on power transmission and distribution facilities that it does not own or control and that are subject to transmission constraints within a number of the Company's core regions.
NRG depends on transmission and distribution facilities owned and operated by others to deliver wholesale power sales and retail power sales to its customers. If transmission or distribution is disrupted, including by force majeure events, or if the transmission or distribution
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infrastructure is inadequate, NRG's ability to sell and deliver wholesale power may be adversely impacted. The Company also cannot predict whether transmission or distribution facilities will be expanded in specific markets to accommodate competitive access to those markets.
In addition, in certain of the markets in which NRG operates, energy transmission congestion may occur and the Company may be deemed responsible for congestion costs associated with wholesale power sales or purchases, or retail sales, particularly where the Company’s load is not co-located with its retail sales obligations. If NRG were liable for such congestion costs, the Company's financial results could be adversely affected.
Rates and terms for service of certain residential and commercial customers in Alberta are subject to regulatory review and approval.
The Company owns Direct Energy Regulated Services, which serves as a regulated rate supplier for residential and commercial energy customers in portions of the province of Alberta. It is required to engage in regulatory approval proceedings as a part of the process of establishing the terms and rates for sales of power and natural gas. These proceedings typically involve multiple parties, including governmental bodies and officials, consumer advocacy groups and various consumers of energy, who have differing concerns but who have the common objective of limiting rate increases or even reducing rates. Decisions are subject to appeal, potentially leading to additional uncertainty associated with the approval proceedings. The potential duration of such proceedings creates a risk that rates ultimately approved by the applicable regulatory body may not be sufficient for the Company to recover its costs by the time the rates become effective. Established rates are also subject to subsequent reviews by regulators, whereby various portions of rates could be adjusted, subject to refund or disallowed. In certain instances, the Company could agree to negotiated settlements related to various rate matters and other cost recovery elements. These settlements are subject to regulatory approval. The ultimate outcome and timing of regulatory rate proceedings have a significant effect on the Company to recover its costs or earn an adequate return. In addition, subsequent legislative or regulatory action could alter the terms on which the regulated business operates and future earnings could be negatively impacted. The Company also operates a competitive energy supply business in Alberta that is not subject to rate regulation and is subject to stringent requirements to segregate operations and information relating to the competitive business from the regulated business. Failure to comply with these and other requirements on the business could subject the Company's regulated and competitive businesses in Alberta to fines, penalties, and restrictions on the ability to continue business.
Because NRG owns less than a majority of the ownership interests of some of its project investments, the Company cannot exercise complete control over their operations.
NRG has limited control over the operation of some project investments and joint ventures because the Company's investments are in projects where it beneficially owns less than a majority of the ownership interests. NRG seeks to exert a degree of influence with respect to the management and operation of projects in which it owns less than a majority of the ownership interests by negotiating to obtain positions on management committees or to receive certain limited governance rights, such as rights to veto significant actions. However, the Company may not always succeed in such negotiations. NRG may be dependent on its co-venturers to operate such projects. The Company's co-venturers may not have the level of experience, technical expertise, human resources management andor other attributes necessary to operate these projects optimally. The approval of co-venturers also may be required for NRG to receive distributions of funds from projects or to transfer the Company's interest in projects.


NRG may be unable to integrate the operations of acquired entities in the manner expected.
NRG enters into acquisitions that result in various benefits, including, among other things, cost savings and operating efficiencies. Achieving the anticipated benefits of these acquisitions depends on whether the businesses can be integrated into NRG in an efficient and effective manner. The integration process could take longer than anticipated and could result in the loss of valuable employees, the disruption of NRG's businesses, processes and systems or inconsistencies in standards, controls, procedures, practices, policies and compensation arrangements, any of which could divert the attention of management and adversely affect the Company's ability to achieve the anticipated benefits of the acquisitions. NRG may have difficulty addressing possible differences in corporate cultures and management philosophies. Failure to achieve these anticipated benefits could result in increased costs or decreases in the amount of expected revenues and could adversely affect NRG's future business, financial condition, operating results and prospects.
Future acquisition or disposition activities could involve unknown risks and may have materially adverse effects and NRG may be subject to trailing liabilities from businesses that it disposes of or that are inactive.
NRG may in the future make acquisitionsacquire or dispositionsdispose of businesses or assets, acquire or sell books of retail customers, or pursue other business activities, directly or indirectly through subsidiaries, that involve a number of risks. The acquisition of companies and assets is subject to substantial risks, including the failure to identify material problems during due diligence, the risk of over-paying for assets or customers, the ability to retain customers and the inability to arrange financing for an acquisition as may be required or desired. Further, the integration and consolidation of acquisitions requires substantial human, financial and other
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resources and, ultimately, the Company's acquisitions may not be successfully integrated. In the case of dispositions, such risks may relate to employment matters, counterparties, regulators and other stakeholders in the disposed business, risks relating to separating the disposed assets from NRG’s business, risks related to the management of NRG’s ongoing business, risks unknown to NRG at the time, and other financial, legal and operational risks related to such disposition. In addition, NRG may be subject to material trailing liabilities from disposed businesses such as Clearway Energy Inc., and its Renewables Platform.businesses. Any such risk may result in one or more costly disputes or litigation. There can be no assurances that any future acquisitions will perform as expected or that the returns from such acquisitions will support the indebtedness incurred to acquire them or the capital expenditures needed to develop them. There can also be no assurances that NRG will realize the anticipated benefits from any such dispositions. The failure to realize the anticipated returns or benefits from an acquisition or disposition could adversely affect NRG's results of operations, cash flows and financial condition.
Risks that are beyond NRG's control, including but not limited to acts of terrorism or related acts of war, natural disaster, hostile cyber intrusions, data breaches or other catastrophic events could have a material adverse effect on NRG's financial condition, results of operations and cash flows.
NRG's generation facilities and the facilities of third parties on which they rely may be targets of terrorist activities, as well as events occurring in response to or in connection with such activities, all of which could cause environmental repercussions and/or result in full or partial disruption of the facilities ability to generate, transmit, transport or distribute electricity or natural gas. Strategic targets, such as energy-related facilities, may be at greater risk of future terrorist activities than other domestic targets. Any such environmental repercussions or disruption could result in a significant decrease in revenues or significant reconstruction or remediation costs beyond what could be recovered through insurance policies, which could have a material adverse effect on the Company's financial condition, results of operations and cash flows. In addition, significant weather events or terrorist actions could damage or shut down the power or gas transmission and distribution facilities upon which the Company is dependent, which may reduce retail volume for extended periods of time. Power or gas supply may be sold at a loss if these events cause a significant loss of retail customer demand.
Numerous functions affecting the efficient operation of NRG’s businesses depend on the secure and reliable storage, processing and communication of electronic data and the use of sophisticated computer hardware and software systems. Hostile cyber intrusions, including those targeting information systems, as well as electronic control systems used at the generation facilities and for the distribution systems, could severely disrupt business operations and result in loss of service to customers, as well as significant expense to repair security breaches or system damage. The operation of NRG’s generation plants, including STP, and of NRG's energy and fuel trading businesses rely on cyber-based technologies and, therefore, are subject to the risk that such systems could be the target of disruptive actions, particularly through cyber-attack or cyber intrusion, including by computer hackers, foreign governments and cyber terrorists, or otherwise be compromised by unintentional events. As a result, operations could be interrupted, property could be damaged and sensitive customer information could be lost or stolen, causing NRG to incur significant losses of revenues, other substantial liabilities and damages, costs to replace or repair damaged equipment and damage to NRG's reputation. In addition, NRG may experience increased capital and operating costs to implement increased security for its cyber systems and plants.
In addition, the Company requires access to sensitive data in the ordinary course of business. Examples of sensitive data are names, addresses, account information, historical electricity usage, expected patterns of use, payment history, credit bureau data, credit and debit card account numbers, driver's license numbers, social security numbers and bank account information. NRG provides sensitive data to vendors and service providers, who require access to this information in order to provide services to NRG, such as call center operations. If a significant breach occurs or if sensitive data that was entrusted to the Company were mishandled, the reputation of NRG and its businesses may be adversely affected, customer confidence may be diminished, or NRG and its retail operations may be subject to legal claims, any of which may contribute to the loss of customers and have a negative impact on the business and/or results of operations.
The Company has made investments, and may continue to make investments, in new business initiatives predominantly focused on consumer products and in markets that may not be successful, may not achieve the intended financial results or may result in product liability and reputational risk that could adversely affect the Company.
NRG continues to pursue growth in its existing businesses and markets and further diversification across the competitive energy value chain. Such initiatives may involve significant risks and uncertainties, including distraction of management from current operations, inadequate return on capital, and unidentified issues not discovered in the diligence performed prior to launching an initiative or entering a market.
As part of these initiatives, the Company may be liable to customers for any damage caused to customers’ homes, facilities, belongings or property during the installation of Company products and systems, such as home back-up generators and residential HVAC system repairs, installation and replacements. Where such work is performed by independent contractors, such as repairs performed under the Company's home warranty and protection plan products, the Company may nonetheless face claims and costs for damage. In addition, shortages of skilled labor for Company projects could significantly delay a
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project or otherwise increase its costs. The products that the Company sells or manufactures may expose the Company to product liability claims relating to personal injury, death, or environmental or property damage, and may require product recalls or other actions. Although the Company maintains liability insurance, the Company cannot be certain that its coverage will be adequate for liabilities actually incurred or that insurance will continue to be available to the Company on economically reasonable terms, or at all. Further, any product liability claim or damage caused by the Company could significantly impair the Company’s brand and reputation, which may result in a failure to maintain customers and achieve the Company’s desired growth initiatives in these new businesses.
Changes in technology may impair the value of NRG's power plants and the attractiveness of its retail products, and the Company may potentially be affected by emerging technologies that may over time affect change in capacity markets and the energy industry overall with the inclusion of distributed generation and clean technology.
Research and development activities are ongoing in the industry to provide alternative and more efficient technologies to produce power, including wind, photovoltaic (solar) cells, hydrogen, energy storage, and improvements in traditional technologies and equipment, such as more efficient gas turbines. Advances in these or other technologies could reduce the costs of power production to a level below what the Company has currently forecasted, which could adversely affect its cash flows, results of operations or competitive position. Technology, including distributed technology or changes in retail rate structures, may also have a material impact on the Company’s ability to retain retail customers.
Some emerging technologies, such as distributed renewable energy technologies, broad consumer adoption of electric vehicles and energy storage devices, could affect the price of energy. These emerging technologies may affect the financial viability of utility counterparties and could have significant impacts on wholesale market prices, which could ultimately have a material adverse effect on NRG's financial condition, results of operations and cash flows.
NRG's business, financial condition and results of operations could be adversely impacted by strikes or work stoppages by its unionized employees or inability to replace employees as they retire.
As of December 31, 2018,2021, approximately 26%13% of NRG's employees at its U.S. generation plants were covered by collective bargaining agreements. In the event that the Company's union employees strike, participate in a work stoppage or slowdown or engage in other forms of labor strife or disruption, NRG would be responsible for procuring replacement labor or the Company could experience reduced power generation or outages. Although NRG's ability to procure such labor is uncertain, contingency staffing planning is completed as part of each respective contract negotiations. Strikes, work stoppages or the inability to negotiate future collective bargaining agreements on favorable terms could have a material adverse effect on the Company's business, financial condition, results of operations and cash flows. In addition, a number of the Company's employees at NRG's plants are close to retirement. The Company's inability to replace retiring workers could create potential knowledge and expertise gaps as such workers retire.
Changes in technology may impair the value of NRG's power plants and the attractiveness of its retail products.
Research and development activities are ongoing to provide alternative and more efficient technologies to produce power, including wind, photovoltaic (solar) cells, energy storage, and improvements in traditional technologies and equipment, such as more efficient gas turbines. Advances in these or other technologies could reduce the costs of power production to a level below what the Company has currently forecasted, which could adversely affect its cash flows, results of operations or competitive position. Technology, including distributed technology or changes in retail rate structures, may also have a material impact on the Company’s ability to retain retail customers.
The Company may potentially be affected by emerging technologies that may over time affect change in capacity markets and the energy industry overall with the inclusion of distributed generation and clean technology.
Some emerging technologies like distributed renewable energy technologies, broad consumer adoption of electric vehicles and energy storage devices could affect the price of energy. These emerging technologies may affect the financial viability of utility counterparties and could have significant impacts on wholesale market prices, which could ultimately have a material adverse effect on NRG's financial condition, results of operations and cash flows.

Risks that are beyond NRG's control, including but not limited to acts of terrorism or related acts of war, natural disaster, hostile cyber intrusions or other catastrophic events could have a material adverse effect on NRG's financial condition, results of operations and cash flows.
NRG's generation facilities and the facilities of third parties on which they rely may be targets of terrorist activities, as well as events occurring in response to or in connection with them, that could cause environmental repercussions and/or result in full or partial disruption of the facilities ability to generate, transmit, transport or distribute electricity or natural gas. Strategic targets, such as energy-related facilities, may be at greater risk of future terrorist activities than other domestic targets. Hostile cyber intrusions, including those targeting information systems as well as electronic control systems used at the generating plants and for the distribution systems, could severely disrupt business operations and result in loss of service to customers, as well as significant expense to repair security breaches or system damage. Any such environmental repercussions or disruption could result in a significant decrease in revenues or significant reconstruction or remediation costs, beyond what could be recovered through insurance policies which could have a material adverse effect on the Company's financial condition, results of operations and cash flows. In addition, significant weather events or terrorist actions could damage or shut down the power transmission and distribution facilities upon which the Company's retail businesses are dependent. Power supply may be sold at a loss if these events cause a significant loss of retail customer load.
The operation of NRG’s businesses is subject to cyber-based security and integrity risk.
Numerous functions affecting the efficient operation of NRG’s businesses depend on the secure and reliable storage, processing and communication of electronic data and the use of sophisticated computer hardware and software systems. The operation of NRG’s generation plants, including STP, and of NRG's energy and fuel trading businesses rely on cyber-based technologies and, therefore, subject to the risk that such systems could be the target of disruptive actions, particularly through cyber-attack or cyber intrusion, including by computer hackers, foreign governments and cyber terrorists, or otherwise be compromised by unintentional events. As a result, operations could be interrupted, property could be damaged and sensitive customer information could be lost or stolen, causing NRG to incur significant losses of revenues, other substantial liabilities and damages, costs to replace or repair damaged equipment and damage to NRG's reputation. In addition, NRG may experience increased capital and operating costs to implement increased security for its cyber systems and plants.
The Company's retail businesses are subject to the risk that sensitive customer data may be compromised, which could result in an adverse impact to its reputation and/or the results of operations of the Company's retail businesses.
The Company's retail businesses require access to sensitive customer data in the ordinary course of business. Examples of sensitive customer data are names, addresses, account information, historical electricity usage, expected patterns of use, payment history, credit bureau data, credit and debit card account numbers, driver's license numbers, social security numbers and bank account information. NRG's retail businesses may need to provide sensitive customer data to vendors and service providers, who require access to this information in order to provide services, such as call center operations, to NRG's retail businesses. If a significant breach occurred, the reputation of NRG and its retail businesses may be adversely affected, customer confidence may be diminished, or NRG and its retail businesses may be subject to legal claims, any of which may contribute to the loss of customers and have a negative impact on the business and/or results of operations.
Risks Related to Governmental Regulation and Laws
NRG's business is subject to substantial energy regulation and may be adversely affected by legislative or regulatory changes, as well as liability under, or any future inability to comply with, existing or future energy regulations or requirements.
NRG's business is subject to extensive U.S. federal, state and local laws and foreign laws. Compliance with, or changes to, the requirements under these legal and regulatory regimes may cause the Company to incur significant additional costs, reduce the Company's ability to hedge exposure or to sell retail power within certain states or to certain classes of retail customers;customers, or restrict the Company’s marketing practices, its ability to pass through costs to retail customers, or its ability to compete on favorable terms with competitors, including the incumbent utility. Retail competition isand home warranty services are regulated on a state-by-state or at the province-by-province level and isare highly dependent on state and provincial laws, regulations and policies, which could change at any moment.
Failure to comply with such requirements could result in the shutdown of a non-complying facility, the imposition of liens, fines, and/or civil or criminal liability.

Public utilities under the FPA are required to obtain FERC acceptance of their rate schedules for wholesale sales of electricity. Except for ERCOT generatinggeneration facilities and power marketers, all of NRG's non-qualifying facility generating companies and power marketing affiliates in the U.S. make sales of electricity in interstate commerce and are public utilities for purposes of the FPA. FERC has granted each of NRG's generating and power marketing companies that make sales of electricity outside of ERCOT the authority to sell electricity at market-based rates. FERC's orders that grant NRG's generating and power marketing companies market-based rate authority reserve the right to revoke or revise that authority if FERC subsequently determines that NRG can exercise market power in transmission or generation, create barriers to entry, or engage in abusive affiliate transactions. In addition, NRG's market-based sales are subject to certain market behavior rules, and if any of NRG's generating and power marketing companies were deemed to have violated those rules, they are subject to potential disgorgement of profits associated with the violation and/or suspension or revocation of their market-based rate authority. If NRG's generating and power marketing companies were to lose their market-based rate authority, such companies would be required to obtain FERC's acceptance of a cost-of-service rate schedule and could become subject to the accounting, record-keeping,record-
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keeping, and reporting requirements that are imposed on utilities with cost-based rate schedules. This could have a material adverse effect on the rates NRG charges for power from its facilities.
Substantially all of the Company's generation assets are also subject to the reliability standards promulgated by the designated Electric Reliability Organization (currently NERC) and approved by FERC. If NRG fails to comply with the mandatory reliability standards, NRG could be subject to sanctions, including substantial monetary penalties and increased compliance obligations. NRG is also affected by legislative and regulatory changes, as well as changes to market design, market rules, tariffs, cost allocations, and bidding rules that occur in the existing ISOs. The ISOs that oversee most of the wholesale power markets impose, and in the future may continue to impose, mitigation, including price limitations, offer caps, non-performance penalties and other mechanisms to address some of the volatility and the potential exercise of market power in these markets. These types of price limitations and other regulatory mechanisms may have a material adverse effect on the profitability of NRG's generation facilities that sell energy and capacity into the wholesale power markets.

The regulatory environment has undergone significant changes in the last several years due to state and federal policies affecting wholesale and retail competition and the creation of incentives for the addition of large amounts of new renewable generation and, in some cases, transmission. These changes are ongoing, and the Company cannot predict the future design of the wholesale power markets or the ultimate effect that the changing regulatory environment will have on NRG's business. In addition, in some of these markets, interested parties have proposed material market design changes, including the elimination of a single clearing price mechanism, as well as proposals to reinstate the vertical monopoly utility of the markets or require divestiture by generating companies to reduce their market share.changes. If competitive restructuring of the electric power markets is reversed, discontinued, or delayed, the Company's business prospects and financial results could be negatively impacted. In addition, since 2010, there have been a number of reforms to the regulation of the derivatives markets, both in the United States and internationally. These regulations, and any further changes thereto, or adoption of additional regulations, including any regulations relating to position limits on futures and other derivatives or margin for derivatives, could negatively impact NRG’s ability to hedge its portfolio in an efficient, cost-effective manner by, among other things, potentially decreasing liquidity in the forward commodity and derivatives markets or limiting NRG’s ability to utilize non-cash collateral for derivatives transactions.
NRG’s business may be affected by state interference in the competitive wholesale marketplace.
NRG’s generation and competitive retail businessesoperations rely on a competitive wholesale marketplace. The competitive wholesale marketplace may be impacted by out-of-market subsidies, provided by states or state entities, including bailouts of uneconomic nuclear plants, imports of power from Canada, renewable mandates or subsidies, mandates to sell power below its cost of acquisition and associated costs, as well as out-of-market payments to new or existing generators. These out-of-market subsidies to existing or new generation undermine the competitive wholesale marketplace, which can lead to premature retirement of existing facilities, including those owned by the Company. If these measures continue, capacity and energy prices may be suppressed, and the Company may not be successful in its efforts to insulate the competitive market from this interference. The Company's retail businessesoperations may be materially impacted by rules or regulations that allow regulated utilities to participate in competitive retail markets or own and operate facilities that could be provided by competitive market participants.
The integration of the Capacity Performance product into the PJM market and the Pay-for-Performance mechanism in ISO-NE could lead to substantial changes in capacity income and non-performance penalties, which could have a material adverse effect on NRG’s results of operations, financial condition and cash flows.

Both ISO-NE and PJM operateoperates a pay-for-performance model where capacity payments are modified based on real-time generator performance. Capacity market prices are sensitive to design parameters, as well as additions of new capacity. NRG may experience substantial changes in capacity income and non-performance penalties, which could have a material adverse effect on NRG’s results of operations, financial condition and cash flows.



NRG's ownership interest in a nuclear power facility subjects the Company to regulations, costs and liabilities uniquely associated with these types of facilities.
Under the Atomic Energy Act of 1954, as amended, or AEA, ownership and operation of STP, of which NRG indirectly owns a 44% interest, is subject to regulation by the NRC. Such regulation includes licensing, inspection, enforcement, testing, evaluation and modification of all aspects of nuclear reactor power plant design and operation, environmental and safety performance, technical and financial qualifications, decommissioning funding assurance and transfer and foreign ownership restrictions. The current facility operating licenses for STP expire on August 20, 2047 (Unit 1) and December 15, 2048 (Unit 2).
There are unique risks to owning and operating a nuclear power facility. These include liabilities related to the handling, treatment, storage, disposal, transport, release and use of radioactive materials, particularly with respect to spent nuclear fuel, and uncertainties regarding the ultimate, and potential exposure to, technical and financial risks associated with modifying or decommissioning a nuclear facility. The NRC could require the shutdown of the plant for safety reasons or refuse to permit restart of the unit after unplanned or planned outages. New or amended NRC safety and regulatory requirements may give rise to additional operation and maintenance costs and capital expenditures. Additionally, aging equipment may require more capital expenditures to keep each of these nuclear power plants operating efficiently. This equipment is also likely to require periodic
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upgrading and improvement. Any unexpected failure, including failure associated with breakdowns, forced outages, or any unanticipated capital expenditures, could result in reduced profitability. STP will be obligated to continue storing spent nuclear fuel if the U.S. DOE continues to fail to meet its contractual obligations to STP made pursuant to the U.S. Nuclear Waste Policy Act of 1982 to accept and dispose of STP's spent nuclear fuel. See also Item 1 Regulatory Matters — Nuclear Operations - Decommissioning Trusts and Item 1 — Environmental Matters — Federal Environmental Initiatives — Nuclear Waste for further discussion. Costs associated with these risks could be substantial and could have a material adverse effect on NRG's results of operations, financial condition or cash flow to the extent not covered by the Decommissioning Trusts or recovered from ratepayers. In addition, to the extent that all or a part of STP is required by the NRC to permanently or temporarily shut down or modify its operations, or is otherwise subject to a forced outage, NRG may incur additional costs to the extent it is obligated to provide power from more expensive alternative sources — either NRG's own plants, third party generators or the ERCOT — to cover the Company's then existing forward sale obligations. Such shutdown or modification could also lead to substantial costs related to the storage and disposal of radioactive materials and spent nuclear fuel.
While STP maintains property and liability insurance for losses related to nuclear operations, there may be limitations on the amounts and types of insurance commercially available. See also Item 15 Note 21, 23, Commitments and Contingencies, Nuclear Insurance. An accident at STP or another nuclear facility could have a material adverse effect on NRG's financial condition, its operational results, or liquidity as losses may exceed the insurance coverage available and/or may result in the obligation to pay retrospective premium obligations.
NRG is subject to environmental laws that impose extensive and increasingly stringent requirements on the Company's ongoing operations, as well as potentially substantial liabilities arising out of environmental contamination. These environmental requirements and liabilities could adversely impact NRG's results of operations, financial condition and cash flows.
NRG is subject to the environmental laws of foreign and U.S., federal, state and local authorities. The Company must comply with numerous environmental laws and obtain numerous governmental permits and approvals to build and operate the Company's plants. Federal and state environmental laws generally have become more stringent over time. Should NRG fail to comply with any environmental requirements that apply to its operations, the Company could be subject to administrative, civil and/or criminal liability and fines, and regulatory agencies could take other actions seeking to curtail the Company's operations. In addition, when new requirements take effect or when existing environmental requirements are revised, reinterpreted or subject to changing enforcement policies, NRG's business, results of operations, financial condition and cash flows could be adversely affected.
NRG's businesses are subject to physical, market and economic risks relating to potential effects of climate change.change, and policies at the national, regional and state levels to regulate GHG emissions and mitigate climate change could adversely impact NRG's results of operations, financial condition and cash flows.
Fluctuations in weather and other environmental conditions, including temperature and precipitation levels, may affect consumer demand for electricity.electricity or natural gas. In addition, the potential physical effects of climate change, such as increased frequency and severity of storms, floods and other climatic events, could disrupt NRG's operations and supply chain, and cause themit to incur significant costs in preparing for or responding to these effects. These or other meteorological changes in climate could lead to increased operating costs or capital expenses or power purchase costs.expenses. NRG's commercial and residential customers may also experience the potential physical impacts of climate change and may incur significant costs in preparing for or responding to these efforts, including increasing the mix and resiliency of their energy solutions and supply.

Hazards customary to the power production industry include the potential for unusual weather conditions, which could affect fuel pricing and availability, the Company's route to market or access to customers, i.e., transmission and distribution lines, transportation and delivery, or critical plant assets. The contribution of climate change to the frequency or intensity of weather-related events could affect NRG's operations and planning process.
Climate change could also affect the availability of a secure and economical supply of water in some locations, which is essential for the continued operation of NRG's generation plants. NRG monitors water risk carefully. If it is determined that a water supply risk exists that could impact projected generation levels at any plant risk mitigation efforts are identified and evaluated for implementation.
GHG regulation could increase the cost of electricity generated by fossil fuels, and such increases could reduce demand for the power NRG generates and markets. Also,Further, demand for NRG's energy-related services could be similarly impacted by consumers’ preferences or market factors favoring energy efficiency, low-carbon power sources or reduced electricity usage.
PoliciesNRG's GHG emissions for 2021 can be found in Item 1, Business —Environmental Regulatory Matters. GHG regulation, at the state or federal level, could increase the cost of electricity generated by fossil fuels, and such increases could reduce demand for the power NRG generates and markets. Any increase in costs at a national, regional andor state levels to regulate GHG emissions, as well as mitigate climate change,level could adversely impact NRG'saffect NRG’s results of operations, financial condition and cash flows.flows
NRG's GHG emissions
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Changes in data privacy and data protection laws and regulations or any non-compliance with such laws and regulations, could adversely affect NRG’s business and financial results.
The consumer privacy landscape continues to experience momentum for 2018 can be foundgreater privacy protection and reform at the state and federal level in Item 1, Business — Operational Statistics. In 2015, the EPA promulgated the final GHG emissions rules for new and existing fossil-fuel-fired electric generating units, which have been stayedresponse to precedents set forth by the U.S. Supreme CourtGeneral Data Protection Regulation (the "GDPR") and the EPA has proposed repealing.California Consumer Privacy Act (the "CCPA"). The development and evolving nature of domestic and international privacy regulation and enforcement could impact and potentially limit how NRG processes personally identifiable information. The 2020 enactment of the CCPA granted certain data access rights to California residents with respect to their personal information, and with the forthcoming amendments to the CCPA supported by the California Privacy Rights Act (the “CPRA”), effective January 1, 2023, California residents will have increased access rights (including the right to limit the use and disclosure of sensitive personal information), which will be enforced by a new state privacy regulator, resulting in more scrutiny of business practices and disclosures. Additional states including Virginia, Colorado, and Nevada have similarly adopted enhanced data privacy legislation patterned after the standards set forth by CCPA, including broader data access rights, with Virginia going a step further requiring businesses to perform data protection assessments for certain processing activities.
TheAs new laws and regulations are created, requiring businesses to implement processes to enable customer access to their data and enhanced data protection and management standards, NRG cannot forecast the impact that they may have on the Company’s business. Any non-compliance with laws may result in proceedings or actions against the Company operates generating unitsby governmental entities or individuals. Moreover, any inquiries or investigations, government penalties or sanctions, or civil actions by individuals may be costly to comply with, resulting in Connecticut, Delaware, Maryland,negative publicity, increased operating costs, significant management time and New York whichattention, and may lead to remedies that harm the business, including fines, demands or orders that existing business practices be modified or terminated.
NRG's retail operations are subject to RGGI, which is a regional cap and trade system for CO2. In 2013, each of these states finalized a rule that reduced and will continue to reduce the number of allowances through 2020. The nine RGGI states re-evaluated the program and published a model rule to further reduce the number of allowances. The revisions being currently contemplated could adversely impact NRG's results of operations, financial condition and cash flows.
California has a CO2 cap and trade program for electric generating units greater than 25 MW. The impact on the Company depends on the cost of the allowances and the ability to pass these costs through to customers.
Hazards customary to the power production industry include the potential for unusual weather conditions, which could affect fuel pricing and availability, the Company's route to market or access to customers, i.e., transmission and distribution lines, or critical plant assets. The contribution of climate change to the frequency or intensity of weather-related events could affect NRG's operations and planning process.
NRG's retail businesses are subject to changing state rules and regulations that could have a material impact on the profitability of its business lines.Company's profitability.
The competitiveness of NRG's retail businessesoperations partially depends on state regulatory policies that establish the structure, rules, terms and conditions on which services are offered to retail customers. These state policies which can include, among other things, controls on the retail rates NRG's retail businessesthat NRG can charge, the imposition of additional costs on sales, restrictions on the Company's ability to obtain new customers through various marketing channels and disclosure requirements, which can affect the competitiveness of NRG's retail businesses.requirements. The Company's retail businessesoperations may be materially impacted by rules or regulations that allow regulated utilities to participate in competitive retail markets or own and operate facilities that could be provided by competitive market participants. Additionally, state, federal or federalprovincial imposition of net metering or RPS programs can make it more or less expensive for retail customers to supplement or replace their reliance on grid power.  NRG's retail businesses have limited ability to influence development of these policies, and its business model may be more or less effective, depending on changes to the regulatory environment.   
The Company's international operations are exposed to political and economic risks, commercial instability and events beyond the Company's control in the countries in which it operates, which risks may negatively impact the Company's business.
The Company's international operations depend on products manufactured, purchased and sold in the U.S. and internationally, including in countries with political and economic instability.internationally. In some cases, these countries have greater political and economic volatility and greater vulnerability to infrastructure and labor disruptions than in NRG's other markets. Operating and seeking to expanda business in a number of different regions and countries exposes the Company to a number of risks, including:
multiple and potentially conflicting laws, regulations and policies that are subject to change;
imposition of currency restrictions on repatriation of earnings or other restraints;
imposition of burdensome tariffs or quotas;
national and international conflict, including terrorist acts; and
political and economic instability or civil unrest that may severely disrupt economic activity in affected countries.
The occurrence of one or more of these events may negatively impact the Company's business, results of operations and financial condition.

Risks Related to Public Health Threats
Public health threats or outbreaks of communicable diseases could have a material adverse effect on the Company’s operations and financial results.
The Company may face risks related to public health threats or outbreaks of communicable diseases. A widespread healthcare crisis, such as an outbreak of a communicable disease, could adversely affect the global economy and the Company’s ability to conduct its business for an indefinite period of time. For example, the ongoing global COVID-19 pandemic negatively impacted local and global economies, disrupted financial markets and international trade, resulted in increased unemployment levels and impacted local and global supply chains, all of which negatively impact the electricity industry and the Company’s business. Federal, state, and local governments had implemented various mitigation measures, including travel restrictions, border closings, restrictions on public gatherings, shelter-in-place orders and limitations on business activities. Although the operations of the Company are considered an essential service, some of these measures may adversely impact the ability of NRG employees, contractors, suppliers, customers, and other business partners to conduct
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business activities. This could have a material adverse effect on the Company’s results of operations, financial condition, risk exposure and liquidity.
In particular, the continued spread of COVID-19 and efforts to contain the virus could:
adversely impact demand for the Company’s electricity services and other products and services and the ability of customers to pay their bills;
cause an increase in costs for the Company as a result of emergency measures taken by state and local regulatory authorities in response to the COVID-19 crisis, including regulatory changes prohibiting customer disconnects and late fees;
impact the ability of the Company's partners or counterparties to perform their obligations under existing arrangements, including development projects, power purchase and sale arrangements, hedging arrangements or other commercial activities; and
cause other unpredicted events which may have an adverse impact on the Company’s results of operations, financial condition, risk exposure and liquidity.
The situation surrounding COVID-19 remains fluid and the potential for a material impact on the Company’s results of operations, financial condition, risk exposure and liquidity increases the longer the virus, or any variants thereof, impacts the level of economic activity in the United States and abroad. NRG cannot reasonably estimate with any degree of certainty the future impact of COVID-19, or any resurgence of COVID-19 or other pandemic may have on the Company’s results of operations, financial position, risk exposure and liquidity.
Risks Related to the Economic and Financial Market Conditions, and the Company's Indebtedness
NRG's level of indebtedness could adversely affect its ability to raise additional capital to fund its operations or return capital to stockholders. It could also expose it to the risk of increased interest rates and limit its ability to react to changes in the economy or its industry.
NRG's substantial debt could have negative consequences, including:
increasing NRG's vulnerability to general economic and industry conditions;
requiring a substantial portion of NRG's cash flow from operations to be dedicated to the payment of principal and interest on its indebtedness, therefore reducing NRG's ability to pay dividends to holders of its preferred or common stock or to use its cash flow to fund its operations, capital expenditures and future business opportunities;
limiting NRG's ability to enter into long-term power sales or fuel purchases which require credit support;
exposing NRG to the risk of increased interest rates because certain of its borrowings, including borrowings under its senior secured credit facility are at variable rates of interest;
limiting NRG's ability to obtain additional financing for working capital including collateral postings, capital expenditures, debt service requirements, acquisitions and general corporate or other purposes; and
limiting NRG's ability to adjust to changing market conditions and placing it at a competitive disadvantage compared to its competitors who have less debt.debt; and
exposing NRG to the risk of increased interest rates because certain of its borrowings are at variable rates of interest, primarily through its Revolving Credit Facility.
The indentures for NRG's notes and senior securedCompany’s credit facilitydocuments contain financial and other restrictive covenants that may limit the Company's ability to return capital to stockholders or otherwise engage in activities that may be in its long-term best interests. Furthermore, financial and other restrictive covenants contained in any project level subsidiary debt may limit the ability of NRG to receive distributions from such subsidiary. NRG's failure to comply with those covenants could result in an event of default which, if not cured or waived, could result in the acceleration of all of the Company's indebtedness. The Company's corporate credit agreement includes a sustainability-linked metric and sustainability-linked bonds, which could result in increased interest expense to the Company if the sustainability metrics set forth therein are not met. Furthermore, financial and other restrictive covenants contained in any project level subsidiary debt may limit the ability of NRG to receive distributions from such subsidiary.
In addition, NRG's ability to arrange financing, either at the corporate level, a non-recourse project-level subsidiary or otherwise, and the costs of such capital, are dependent on numerous factors, including:
general economic and capital market conditions;
credit availability from banks and other financial institutions;
investor confidence in NRG, its partners and the regional wholesale power markets;
NRG's financial performance and the financial performance of its subsidiaries;
NRG's level of indebtedness and compliance with covenants in debt agreements;
maintenance of acceptable credit ratings;
cash flow; and
provisions of tax and securities laws that may impact raising capital.
NRG may not be successful in obtaining additional capital for these or other reasons. The failure to obtain additional capital from time to time may have a material adverse effect on its business and operations.
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Adverse economic conditions could adversely affect NRG’s business, financial condition, results of operations and cash flows.
Adverse economic conditions and declines in wholesale energy prices, partially resulting from adverse economic conditions, may impact NRG’s earnings.NRG's results of operations. The breadth and depth of negative economic conditions may have a wide-ranging impact on the U.S. business environment, including NRG’s businesses.environment. In addition, adverse economic conditions also reduce the demand for energy commodities. Reduced demand from negative economic conditions continues to impact the key domestic wholesale energy markets NRG serves. The combination of lower demand for power and increased supply of natural gas has put downward price pressure on wholesale energy markets in general, further impacting NRG’s energy marketing results. In general, economic and commodity market conditions will continue to impact NRG’s unhedged future energy margins, liquidity, earnings growth and overall financial condition. In addition, adverse economic conditions, declines in wholesale energy prices, reduced demand for powerenergy and other factors may negatively impact the trading price of NRG’s common stock and impact forecasted cash flows, which may require NRG to evaluate its goodwill and other long-lived assets for impairment. Any such impairment could have a material impact on NRG’s financial statements.

Goodwill and/orand other intangible assets not subject to amortization that NRG has recorded in connection with its acquisitions are subject to mandatory annual impairment evaluations and, as a result, the Company could be required to write off some or all of this goodwill and other intangible assets, which may adversely affect the Company's financial condition and results of operations.
In accordance with ASC 350, Intangibles — Goodwill and Other, or ASC 350, goodwill is not amortized but is reviewed annually or more frequently for impairment and otherimpairment. Other intangibles are also reviewed at least annually or more frequently, if certain conditions exist, and may beare amortized. Any reduction in or impairment of the value of goodwill or other intangible assets will result in a charge against earnings, which could materially adversely affect NRG's reported results of operations and financial position in future periods.
The Company has made investments, and may continue to make investments, in new business initiatives predominantly focused on consumer products and in markets that may not be successful, may not achieve the intended financial results or may result in product liability and reputational risk that could adversely affect the Company.
NRG continues to pursue growth in its existing businesses and markets and further diversification across the competitive energy value chain. NRG is continuing to pursue investment opportunities in renewables, consumer products and distributed generation. Such initiatives may involve significant risks and uncertainties, including distraction of management from current operations, inadequate return on capital, and unidentified issues not discovered in the diligence performed prior to launching an initiative or entering a market.
37

As part of these initiatives, the Company may be liable to customers for any damage caused to customers’ homes, facilities, belongings or property during the installation of Company products and systems, such as residential solar systems and mass market back-up generators. In addition, shortages of skilled labor for Company projects could significantly delay a project or otherwise increase its costs. The products that the Company sells or manufactures may expose the Company to product liability claims relating to personal injury, death, or environmental or property damage, and may require product recalls or other actions. Although the Company maintains liability insurance, the Company cannot be certain that its coverage will be adequate for liabilities actually incurred or that insurance will continue to be available to the Company on economically reasonable terms, or at all. Further, any product liability claim or damage caused by the Company could significantly impair the Company’s brand and reputation, which may result in a failure to maintain customers and achieve the Company’s desired growth initiatives in these new businesses.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION
This Annual Report on Form 10-K of NRG Energy, Inc., or NRG or the Company, includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or Exchange Act. The words "believes," "projects," "anticipates," "plans," "expects," "intends," "estimates" and similar expressions are intended to identify forward-looking statements. These forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause NRG's actual results, performance and achievements, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. These factors, risks and uncertainties include the factors described under Item 1A — Risk Factors Related to NRG Energy, Inc. and the following:
NRG's abilityBusiness uncertainties related to achieve the expected benefitsintegration of the operations of Direct Energy with its Transformation Plan;own;
NRG's ability to engage in successful sales and divestitures as well as mergers and acquisitions activity;
NRG's ability to obtain and maintain retail market share;
General economic conditions, changes in the wholesale power and gas markets and fluctuations in the cost of fuel;
Volatile power and gas supply costs and demand for power;power and gas;
Changes in law, including judicial and regulatory decisions;
Hazards customary to the power production industry and power generation operations, such as fuel and electricity price volatility, unusual weather conditions, catastrophic weather-related or other damage to facilities, unscheduled generation outages, maintenance or repairs, unanticipated changes to fuel supply costs or availability due to higher demand, shortages, transportation problems or other developments, environmental incidents, or electric transmission or gas pipeline system constraints and the possibility that NRG may not have adequate insurance to cover losses as a result of such hazards;
The effectiveness of NRG's risk management policies and procedures and the ability of NRG's counterparties to satisfy their financial commitments;
Counterparties' collateral demands and other factors affecting NRG's liquidity position and financial condition;
NRG's ability to operate its businesses efficiently and generate earnings and cash flows from its asset-based businesses in relation to its debt and other obligations;
NRG's ability to enter into contracts to sell power or gas and procure fuel on acceptable terms and prices;
The liquidityNRG's inability to estimate with any degree of certainty the future impact that COVID-19, any resurgence of COVID-19, or other pandemic may have on NRG's results of operations, financial position, risk exposure and competitiveness of wholesale markets for energy commodities;liquidity;
Government regulation, including changes in market rules, rates, tariffs and environmental laws;
Price mitigation strategies and other market structures employed by ISOs or RTOs that result in a failure to adequately and fairly compensate NRG's generation units;
NRG's ability to mitigate forced outage risk for units subject to capacity performance requirements in PJM, performance incentives in ISO-NE,successfully integrate, realize cost savings and scarcity pricing in ERCOT;manage any acquired businesses;
NRG's ability to borrow fundsengage in successful acquisitions and access capital markets,divestitures, as well as NRG's substantial indebtednessother mergers and the possibility that NRG may incur additional indebtedness going forward;acquisitions activity;
Operating and financial restrictions placed on NRG and its subsidiaries that are contained in the indentures governing NRG's outstanding notes, in NRG's Senior Credit Facility, and in debt and other agreements of certain of NRG subsidiaries and project affiliates generally;
Cyber terrorism and inadequate cybersecurity, data breaches or the occurrence of a catastrophic loss and the possibility that NRG may not have adequate insurance to cover losses resulting from such hazards or the inability of NRG's insurers to provide coverage;
Counterparties' collateral demands and other factors affecting NRG's liquidity position and financial condition;
NRG's ability to developoperate its businesses efficiently and build new power generation facilities;generate earnings and cash flows from its asset-based businesses in relation to its debt and other obligations;
The liquidity and competitiveness of wholesale markets for energy commodities;
Government regulation, including changes in market rules, rates, tariffs and environmental laws;
NRG's ability to develop and innovate new products, as retail and wholesale markets continue to change and evolve;
Price mitigation strategies and other market structures employed by ISOs or RTOs that result in a failure to adequately and fairly compensate NRG's generation units;
NRG's ability to mitigate forced outage risk;
NRG's ability to borrow funds and access capital markets, as well as NRG's substantial indebtedness and the possibility that NRG may incur additional indebtedness in the future;
Operating and financial restrictions placed on NRG and its subsidiaries that are contained in NRG's corporate credit agreements, and in debt and other agreements of certain of NRG subsidiaries and project affiliates generally;
The ability of NRG and its counterparties to develop and build new power generation facilities;
NRG's ability to implement its strategy of finding ways to meet the challenges of climate change, clean air and protecting natural resources, while taking advantage of business opportunities;
NRG's ability to increase cash from operations through operational and commercialmarket initiatives, corporate efficiencies, asset strategy, and a range of other programs throughout NRG to reduce costs or generate revenues;
NRG's ability to achieve its strategy of regularly returning capital to stockholders;
NRG's ability to successfully evaluate investments and achieve intended financial results in new business and growth initiatives;
NRG's ability to successfully integrate, realize cost savings and manage any acquired businesses; and
38

NRG's ability to develop and maintain successful partnering relationships.

relationships as needed.
Forward-looking statements speak only as of the date they were made, and NRG Energy, Inc. undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. The foregoing review of factors that could cause NRG's actual results to differ materially from those contemplated in any forward-looking statements included in this Annual Report on Form 10-K should not be construed as exhaustive.
Item 1B — Unresolved Staff Comments
None.

39

Item 2 — Properties
Listed below are descriptions of NRG's interests in facilities, operations and/or projects owned or leased as of December 31, 2018.2021. The rated MW capacity figures provided represent nominal summer net MW capacity of power generated asgenerated. Net MW capacity is adjusted for the Company's owned or leased interest excluding capacity from inactive/mothballed units as of December 31, 2018.2021. The Company believes its existing facilities, operations and/or projects are suitable for the conduct of its business. The following table summarizes NRG's power production and cogeneration facilities by region:

Name of FacilityPower MarketPlant TypePrimary FuelLocation
Rated MW Capacity(a)
Net MW Capacity(b)
% Owned
Texas
Cedar BayouERCOTFossilNatural GasTX1,494 1,494 100.0 
Cedar Bayou 4ERCOTFossilNatural GasTX504 252 50.0 
Elbow CreekERCOTOtherBattery StorageTX100.0 
Greens BayouERCOTFossilNatural GasTX330 330 100.0 
GregoryERCOTFossilNatural GasTX385 385 100.0 
Limestone(c)
ERCOTFossilCoalTX1,660 1,660 100.0 
Petra Nova CogenERCOTFossilNatural GasTX68 34 50.0 
San JacintoERCOTFossilNatural GasTX160 160 100.0 
South Texas ProjectERCOTNuclearUraniumTX2,572 1,132 44.0 
T.H. WhartonERCOTFossilNatural GasTX1,002 1,002 100.0 
W.A. ParishERCOTFossilCoalTX2,514 2,514 100.0 
W.A. ParishERCOTFossilNatural GasTX1,118 1,118 100.0 
Total Texas11,809 10,083 
 East
Astoria Turbines(e)
NYISOFossilNatural GasNY420 420 100.0 
Chalk PointPJMFossilNatural GasMD80 80 100.0 
FiskPJMFossilOilIL171 171 100.0 
Indian River(f)
PJMFossilCoalDE410 410 100.0 
Indian RiverPJMFossilOilDE16 16 100.0 
JolietPJMFossilNatural GasIL1,381 1,381 100.0
PowertonPJMFossilCoalIL1,538 1,538 100.0
ViennaPJMFossilOilMD167 167 100.0 
Waukegan(f)
PJMFossilCoalIL682 682 100.0 
WaukeganPJMFossilOilIL101 101 100.0 
Will County(f)
PJMFossilCoalIL510 510 100.0 
Total East5,476 5,476 
West/Other
CottonwoodMISOFossilNatural GasTX1,177 1,177 ___(d)
GladstoneFossilCoalAUS1,613 605 37.5 
IvanpahCAISORenewableSolarCA393 214 54.5 
Midway-SunsetCAISOFossilNatural GasCA226 113 50.0 
Stadiums and OtherRenewableSolarvarious100.0 
WatsonCAISOFossilNatural GasCA416 204 49.0 
Total West/Other3,830 2,318 
Total Fleet21,115 17,877 

(a)MW capacity of the facility without taking into account NRG ownership percentage
(b)Actual capacity can vary depending on factors including weather conditions, operational conditions, and other factors. Additionally, ERCOT and PJM require periodic demonstration of capability, and the capacity may vary individually and in the aggregate from time to time
(c)In early July 2021, Limestone Unit 1 came offline as a result of damage to the duct work associated with the flue gas desulfurization system. Based on management's current assessment of necessary remediation efforts, Unit 1 is expected to remain on an outage until the second quarter of 2022
(d)NRG leases 100% interests in the Cottonwood facility through a facility lease agreement expiring in May 2025 and operates the Cottonwood facility
(e)On February, 22, 2022, NRG submitted deactivation notices to the NYISO for the Astoria facility, with a planned retirement date of 2023


40

Name of Facility Power Market Plant Type Primary Fuel Location Rated MW Capacity 
Net MW Capacity(a)
 % Owned
Texas              
Cedar Bayou ERCOT Fossil Natural Gas TX 1,494
 1,494
 100.0
Cedar Bayou 4 ERCOT Fossil Natural Gas TX 504
 252
 50.0
Elbow Creek ERCOT Other Battery Storage TX 2
 2
 100.0
Greens Bayou ERCOT Fossil Natural Gas TX 330
 330
 100.0
Gregory ERCOT Fossil Natural Gas TX 365
 365
 100.0
Limestone ERCOT Fossil Coal TX 1,660
 1,660
 100.0
Petra Nova Cogen ERCOT Fossil Natural Gas TX 38
 19
 50.0
San Jacinto ERCOT Fossil Natural Gas TX 160
 160
 100.0
South Texas Project(b)
 ERCOT Nuclear Uranium TX 2,559
 1,126
 44.0
T.H. Wharton ERCOT Fossil Natural Gas TX 1,001
 1,001
 100.0
W.A. Parish ERCOT Fossil Coal TX 2,514
 2,514
 100.0
W.A. Parish ERCOT Fossil Natural Gas TX 1,118
 1,118
 100.0
Total Texas 11,745
 10,041
  
               
 East/West              
Agua Caliente WECC Renewable Solar AZ 290
 102
 35.0
Arthur Kill NYISO Fossil Natural Gas NY 865
 865
 100.0
Astoria Turbines NYISO Fossil Natural Gas NY 415
 415
 100.0
Chalk Point PJM Fossil Natural Gas MD 80
 80
 100.0
Connecticut Jet Power ISO-NE Fossil Oil CT 142
 142
 100.0
Cottonwood(c)
 MISO Fossil Natural Gas TX 1,263
 1,263
 100.0
Devon ISO-NE Fossil Oil CT 133
 133
 100.0
Doga   Fossil Natural Gas Turkey 180
 144
 80.0
Fisk PJM Fossil Oil IL 171
 171
 100.0
Gladstone   Fossil Coal AUS 1,613
 605
 37.5
Indian River PJM Fossil Coal DE 410
 410
 100.0
Indian River PJM Fossil Oil DE 16
 16
 100.0
Ivanpah CAISO Renewable Solar CA 393
 214
 54.5
Joliet(e)
 PJM Fossil Natural Gas IL 1,326
 1,326
 100.0
Long Beach CAISO Fossil Natural Gas CA 252
 252
 100.0
Middletown ISO-NE Fossil Oil CT 762
 762
 100.0
Midway-Sunset CAISO Fossil Natural Gas CA 226
 113
 50.0
Montville ISO-NE Fossil Oil CT 491
 491
 100.0
Oswego NYISO Fossil Oil NY 1,638
 1,638
 100.0
Powerton(e)
 PJM Fossil Coal IL 1,538
 1,538
 100.0
Sherbino Wind Farm ERCOT Renewable Wind TX 150
 75
 50.0
Stadiums   Renewable Solar various 6
 6
 100.0
Sunrise CAISO Fossil Natural Gas CA 586
 586
 100.0
Vienna PJM Fossil Oil MD 167
 167
 100.0
Watson CAISO Fossil Natural Gas CA 416
 204
 49.0
Waukegan PJM Fossil Coal IL 682
 682
 100.0
(f)During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released, leading the Company to announce the near-term retirement of a significant portion of its PJM coal generating assets as detailed bellow:

Name of Facility Power Market Plant Type Primary Fuel Location Rated MW Capacity 
Net MW Capacity(a)
 % Owned
Waukegan PJM Fossil Oil IL 101
 101
 100.0
Will County PJM Fossil Coal IL 510
 510
 100.0
Total East/West 14,822
 13,011
  
       
 Other              
Residential solar   Renewable Solar various 60
 60
 100.0
Total Other 60
 60
  
Total Continuing Operations, excluding Held for Sale 26,627
 23,112
  
               
Held for Sale and Discontinued Operations            
Bayou Cove(c)
 MISO Fossil Natural Gas LA 225
 225
 100.0
Big Cajun I(c)
 MISO Fossil Natural Gas LA 430
 430
 100.0
Big Cajun II(c)
 MISO Fossil Coal LA 580
 580
 100.0
Big Cajun II(c)
 MISO Fossil Natural Gas LA 540
 540
 100.0
Big Cajun II(c)
 MISO Fossil Coal LA 588
 341
 58.0
Carlsbad(f)
 CAISO Fossil Natural Gas CA 528
 528
 100.0
Guam(d)
 GPA Renewable Solar Guam 26
 26
 100.0
Sterlington(c)
 MISO Fossil Natural Gas LA 176
 176
 100.0
Total Held for Sale and Discontinued Operations 3,093
 2,846
  
       
Total Fleet 29,720
 25,958
 

(a)Name of FacilityActual capacity can vary depending on factors including weather conditions, operational conditions, and other factors. Additionally, ERCOT requires periodic demonstration of capability, and the capacity may vary individually and in the aggregate from time to timePower MarketPrimary FuelNet MW CapacityRetirement Date
Indian River 4PJMCoal410June 2022*
Waukegan 7PJMCoal328June 2022
Waukegan 8PJMCoal354June 2022
Will CountyPJMCoal510June 2022
(b)Generation capacity figure consists of the Company's 44% interest in the two units at STP
Total1,602
(c)Assets that are part of NRG's South Central Portfolio. The entire South Central Portfolio, including Cottonwood, was sold on February 4, 2019. NRG will
* On July 30, 2021, PJM identified reliability impacts resulting from the proposed deactivation of one of those assets, Indian River Unit 4. On August 27, 2021 the Company notified PJM that it would continue to operateoperations at Indian River Unit 4 until the Cottonwood facility underreliability upgrades identified by PJM were completed, provided that the unit receives a lease agreement through 2025
(d)Guam was classified as held for sale as of December 31, 2018. The sale was completed on February 20, 2019
(e)NRG leases 100% interests in the Powerton facility and Units 7 and 8 of the Joliet facility through facility lease agreements expiring in 2034 and 2030, respectively.  NRG owns 100% interest in Joliet Unit 6.  NRG operates the Powerton and Joliet facilities
(f)On February 6, 2018, the Company entered into an agreement with NRG Yield, Inc. and GIP to sell 100% of NRG's membership interests in Carlsbad Energy Holdings LLC, which owns the Carlsbad project, a 528 MW natural gas-fired project in Carlsbad, California pursuant to the ROFO Agreement. The transaction closed on February 27, 2019

satisfactory and compensatory reliability must run arrangement.


Other Properties
NRG owns several real properties and facilities related to its generation assets, other vacant real property unrelated to the Company'sits generation assets, interests in construction projects, and properties not used for operational purposes. NRG believes it has satisfactory title to its plants and facilities in accordance with standards generally accepted in the electric power industry, subject to exceptions that, in the Company's opinion, would not have a material adverse effect on the use or value of its portfolio.
NRG leases its operational and corporate headquarters at 910 Louisiana Street, Houston, Texas, its financial and commercial corporate headquartersoffices at 804 Carnegie Center, Princeton, New Jersey, its operational headquarters in Houston, Texas,as well as its retail businessoperations offices, and call centers, and various other office space.


Item 3 — Legal Proceedings
See Item 15 Note 21, 23, Commitments and Contingencies, to the Consolidated Financial Statements for discussion of the material legal proceedings to which NRG is a party.

Item 4 — Mine Safety Disclosures
Not applicable.There have been no events that are required to be reported under this Item.

41


PART II

Item 5 — Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.
Market Information and Holders
NRG's common stock trades on the New York Stock Exchange under the symbol "NRG." NRG's authorized capital stock consists of 500,000,000 shares of common stock and 10,000,000 shares of preferred stock. A total of 25,000,000 shares of the Company's common stock are authorized for issuance under the NRG LTIP. No shares of NRG common stock were available for future issuance under the NRG GenOn LTIP. For more information about the NRG LTIP and the NRG GenOn LTIP, refer to Item 12 — Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters and Item 15 — Note 19, 21, Stock-Based Compensation, to the Consolidated Financial Statements.
NRG had 283,650,039shares outstanding as of December 31, 2018.As of January 31, 2019,2022, there were 280,997,550 shares outstanding, and there were 19,69116,501 common stockholders of record.
NRG currently anticipates continuingincreased the annual dividend to pay comparable cash dividends$1.30 from $1.20 per share beginning in the future.first quarter of 2021 and further increased the annual dividend by 8% to $1.40 per share beginning in the first quarter of 2022 . NRG expects to target an annual dividend growth rate of 7-9% per share in subsequent years.
Issuer Purchases of Equity Securities
In 2018, the Company's board of directors authorized the Company to repurchase $1.5 billion of its common stock. During the year ended December 31, 2018, the Company repurchased a total of 35,234,664 shares under these programs for $1.25 billion, and the remaining $250 million was repurchased by February 28, 2019. The average price paid per share for the $1.5 billion share repurchase was $36.24. In addition, the Company's board of directors authorized in February 2019 an additional $1.0 billion share repurchase program to be executed in 2019.
The table below sets forth the information with respect to purchases made by or on behalf of NRG or any "affiliated purchaser" (as defined in Rule 10b-18(a)(3) under the Exchange Act), of NRG's common stock during the quarter ended
December 31, 2018.2021.
For the three months ended December 31, 2021Total Number of Shares Purchased
Average Price Paid per Share(b)
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs(a)(c)
Month #1
(October 1, 2021 to October 31, 2021— $— — $— 
Month #2
(November 1, 2021 to November 30, 2021,— $— — $— 
Month #3
(December 1, 2021 to December 31, 2021)1,084,752 $40.85 1,084,752 $955,665,275 
Total at December 31, 20211,084,752 $40.85 1,084,752 
(a)On December 6, 2021 the Company announced that the Board of Directors has authorized $1 billion for share repurchases, as part of NRG’s Capital Allocation Program. The program began in December 2021 and will continue throughout 2022
(b)The average price paid per share excludes commissions of $0.02 per share paid in connection with the open market share repurchases
(c)Includes commissions of $0.02 per share paid in connection with the open market share repurchases
42

For the three months ended December 31, 2018 Total Number of Shares Purchased 
Average Price Paid per Share(a)

 Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs(b)
Month #1        
(October 1, 2018 to October 31, 2018) 
 $
 
 $500,000,000
Month #2        
(November 1, 2018 to November 30, 2018) 1,964,808
 $38.59
 1,964,808
 $424,174,905
Month #3        
(December 1, 2018 to December 31, 2018)(c)
 4,725,163
 $36.87
 4,725,163
 $249,951,196
Total at December 31, 2018 6,689,971
 $37.38
 6,689,971
  
(a)The average price paid per share excludes commissions of $0.01 per share paid in connection with the open market share repurchases
(b)Includes commissions of $0.01 per share paid in connection with the open market share repurchases
(c)Includes 486,618 of additional shares delivered upon settlement of an ASR agreement executed in September 2018


Stock Performance Graph
The performance graph below compares NRG'sthe cumulative total stockholder return on the Company'sNRG's common stock for the period December 31, 20132016 through December 31, 20182021 with the cumulative total return of the Standard & Poor's 500 Composite Stock Price Index, or S&P 500, and the Philadelphia Utility Sector Index, or UTY. NRG's common stock trades on the New York Stock Exchange under the symbol "NRG."
The performance graph shown below is being furnished and compares each period assuming that $100 was invested on December 31, 2013,2016, in each of the common stock of NRG, the stocks included in the S&P 500 and the stocks included in the UTY, and that all dividends were reinvested.
Comparison of Cumulative Total Return

nrg-20211231_g4.jpg
a2018stockperformancegraph.jpg


12/31/201612/31/201712/31/201812/31/201912/31/202012/31/2021
NRG Energy, Inc. $100.00 $233.70 $326.22 $328.47 $321.43 $381.07 
S&P 500100.00 121.83 116.49 153.17 181.35 233.41 
UTY100.00 112.82 116.79 148.11 152.14 179.90 
 Dec-2013 Dec-2014 Dec-2015 Dec-2016 Dec-2017 Dec-2018
NRG Energy, Inc. $100.00
 $95.52
 $42.95
 $45.71
 $106.82
 $149.10
S&P 500100.00
 113.69
 115.26
 129.05
 157.22
 150.33
UTY100.00
 128.94
 120.87
 141.90
 160.09
 165.72


Item 6 — Selected Financial DataReserved
The following table presents NRG's historical selected financial data. This historical data should be read in conjunction with the Consolidated Financial Statements and the related notes thereto in Item 15 and Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations. The Company has completed several acquisitions and dispositions, as described in Item 15 Note 3, Acquisitions, Discontinued Operations and Dispositions.

43
 Year Ended December 31,
 2018 2017 2016 2015 2014
 (In millions except ratios and per share data)
Statement of income data:         
Total operating revenues$9,478
 $9,074
 $8,915
 $10,842
 $11,387
Total operating costs and other expenses (a)
(8,929) (8,953) (9,208) (11,010) (11,606)
Impairment losses (b)
(99) (1,534) (483) (4,823) (5)
Operating income/(loss)982
 (741) 33
 (4,347) 537
Impairment losses on investments(15) (79) (268) (40) 
Income/(loss) from continuing operations, net460
 (1,345) (956) (6,379) (223)
(Loss)/income from discontinued operations, net(192) (992) 65
 (57) 355
Net income/(loss) attributable to NRG Energy, Inc. $268
 $(2,153) $(774) $(6,382) $134
Common share data:         
Basic shares outstanding — average304
 317
 316
 329
 334
Diluted shares outstanding — average308
 317
 316
 329
 339
Shares outstanding — end of year284
 317
 315
 314
 337
Per share data:         
Net income/(loss) attributable to NRG — basic$0.88
 $(6.79) $(2.22) $(19.46) $0.23
Net income/(loss) attributable to NRG — diluted0.87
 (6.79) (2.22) (19.46) 0.23
Dividends declared per common share0.12
 0.12
 0.24
 0.58
 0.54
Book value$(4.35) $6.20
 $14.09
 $17.29
 $34.68
Business metrics:         
Cash flow from operations$1,377
 $1,610
 $1,908
 $1,419
 $1,620
Liquidity position (c)
1,977
 2,760
 1,768
 2,102
 2,136
Return on equity(21.72)% (109.40)% (17.41)% (117.45)% 1.15%
Ratio of debt to total capitalization126.12 % 81.40 % 68.26 % 63.96 % 46.61%
Balance sheet data:         
Current assets$3,600
 $4,437
 $6,747
 $8,231
 $9,454
Current liabilities2,398
 3,354
 4,736
 5,215
 5,732
Property, plant and equipment, net3,048
 5,974
 7,877
 8,283
 11,823
Total assets10,628
 23,355
 30,716
 33,738
 41,551
Long-term debt, including current maturities, and capital leases6,521
 9,384
 10,071
 10,867
 11,184
Total stockholders' equity$(1,234) $1,968
 $4,446
 $5,434
 $11,695
(a)Excludes impairment losses and impairment losses on investments
(b)
Includes goodwill impairment as described in Item 15 - Note 10, Goodwill and Other Intangibles, to the Consolidated Financial Statements
(c)
Liquidity position is determined as disclosed in Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations, Liquidity and Capital Resources, Liquidity Position. It excludes collateral funds deposited by counterparties of $33 million, $37 million and $2 million as of December 31, 2018, 2017 and 2016, respectively, which represents cash held as collateral from hedge counterparties in support of energy risk management activities. It is the Company's intention to limit the use of these funds for repayment of the related current liability for collateral received in support of energy risk management activities



The following table provides the details of NRG's operating revenues:

 Year Ended December 31,
 2018 2017 2016 2015 2014
 (In millions)
Energy revenue 
$2,677
 $2,725
 $3,243
 $4,131
 $4,215
Capacity revenue 
670
 618
 642
 781
 690
Retail revenue 
7,110
 6,374
 6,332
 6,907
 7,371
Mark-to-market for economic hedging activities(209) 33
 (566) (138) 684
Contract amortization
 (1) (1) (1) 1
Other revenues287
 235
 313
 202
 313
Corporate/Eliminations(1,057) (910) (1,048) (1,040) (1,887)
Total operating revenues(a)
$9,478
 $9,074
 $8,915
 $10,842
 $11,387

(a) Inter-segment sales and net derivative gains and losses included in operating revenues

Energy revenue consists of revenues received from third parties as well as from the Company's retail businesses, for sales of electricity in the day-ahead and real-time markets, as well as bilateral sales. It also includes energy sold through long-term PPAs for renewable facilities. In addition, energy revenue includes revenues from the settlement of financial instruments and net realized trading revenues.
Capacity revenue consists of revenues received from a third party at either the market or negotiated contract rates for making installed generation capacity available in order to satisfy system integrity and reliability requirements. Capacity revenue also includes revenues from the settlement of financial instruments. In addition, capacity revenue includes revenues received under tolling arrangements, which entitle third parties to dispatch NRG's facilities and assume title to the electrical generation produced from that facility.
Retail revenue, representing operating revenues of NRG's retail businesses, consists of revenues from retail sales to residential, small business, commercial, industrial and governmental/institutional customers, revenues from the sale of excess supply into various markets, primarily in Texas, as well as product sales.
Mark-to-market for economic hedging activities includes asset-backed hedges that have not been designated as cash flow hedges and ineffectiveness on cash flow hedges.

Contract amortization revenue consists of the amortization of the intangible assets for net in-market C&I contracts established in connection with the acquisitions of Reliant Energy and Green Mountain Energy. These amounts are amortized into revenue over the term of the underlying contracts based on contracted volumes.
Other revenues consists of operations and maintenance fees, or O&M fees, construction management services, or CMA fees, sale of natural gas and emission allowances, and revenues from ancillary services. O&M fees consist of revenues received from providing certain third party and unconsolidated affiliates with services under long-term operating agreements. CMA fees are earned where NRG provides certain management and oversight of construction projects pursuant to negotiated agreements. Ancillary services are comprised of the sale of energy-related products associated with the generation of electrical energy such as spinning reserves, reactive power and other similar products. Other revenues also include unrealized trading activities.
                                                                        

Item 7 — Management's Discussion and Analysis of Financial Condition and Results of Operations
The discussion and analysis below has been organized as follows:
Executive Summary, including the business environment in which NRG Energy Inc., or NRG or the Company operates, a discussion of regulation, weather, competition and other factors that affect the business, Transformation Plan update, and other significant events that are important to understanding the results of operations and financial condition;
Results of operations for the years ended December 31, 2021 and December 31, 2020, including an explanation of significant differences between the periods in the specific line items of NRG's Consolidated Statements of Operations;
Financial condition addressing credit ratings, liquidity position, sources and uses of cash, capital resources and requirements, contractual obligations and market commitments, and off-balance sheet arrangements; and
Critical accounting policies whichestimates that are most important to both the portrayal of the Company's financial condition and results of operations, and which require management's most difficult, subjective, or complex judgment.judgments.
As you read this discussion and analysis, refer to NRG's Consolidated Statements of Operations toin this Form 10-K, which presentspresent the results of the Company's operations for the years ended December 31, 2018, 2017,2021 and 2016,2020, and also refer to Item 1 to this Form 10-K for more detaileddetail discussion about the Company's business. A discussion and analysis of fiscal year 2019 may be found in Part II, Item 7 Management's Discussion and Analysis of Financial Condition and Results of Operations of the Annual Report on Form 10-K for the fiscal year ended December 31, 2020.
As further described in Item 15 Note 3, 4, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements, the Company is treatingdetermined in prior years that the following businesses aswere discontinued operations which have beenand recast to present their results in the corporate segment:
South Central Portfolio
NRG Yield, Inc. and its Renewables Platform
Carlsbad
GenOn

Executive Summary
NRG Energy, Inc., or NRG or the Company, is an energya consumer services company built on dynamic retail brands with diverse generation assets.brands. NRG brings the power of energy to consumerscustomers by producing and selling and delivering electricityenergy and related products and services, in major competitive power marketsnation-wide in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG sells power, natural gas, home and power services, and develops innovative, sustainable solutions, predominately under the brand names NRG, Reliant, Direct Energy, Green Mountain Energy, Stream, and XOOM Energy. The Company sells energy, services,has a customer base that includes approximately 6 million Home customers as well as commercial, industrial, and innovative, sustainable products and services directly to retailwholesale customers, under the names "NRG" and "Reliant" and other brand names owned by NRG supported by approximately 23,000(a)18,000 MW of generation as of December 31, 2018.2021.
Business Environment
The industry dynamics and external influences affecting the Company, and its businesses, and the retail energy and power generation and retail energy industry in general in 20182021 and for the future medium term include:
Commodities MarketsMarket Dynamics — The price of natural gas plays an important role in setting the price of electricity in many of the regions where NRG operates. Natural gas prices are driven by variables including demand from the industrial, residential, and electric sectors, productivity across natural gas supply basins, costs of natural gas production, changes in pipeline infrastructure, and the financial and hedging profile of natural gas consumerscustomers and producers. In 2018,2021, the average natural gas pricesprice at Henry Hub was 1.0% lower85% higher than in 2017.2020.
If long-term gas prices decrease, the Company is likelyNRG may experience impacts to encounter lower realized energy prices, leading to lower energy revenues as higher priced hedge contracts mature and are replaced by contracts with lower gas and power prices.  NRG's retail gross margins have historically improved asdue to significant, rapid changes in current natural gas prices decline and are likelythe lag in our ability to partially offsetmake a corresponding adjustment to the retail rates we charge customers on term and month to month contracts. The Company hedges its load commitments in order to mitigate the impact of declining gaschanges in commodity prices, on conventional wholesale power generation.  To further mitigate this impact, NRG may increase its percentage of coal and nuclear capacity sold forward usingas a variety of hedging instruments, as described underresult, these gross margin impacts would be realized in future periods until we are able to make the heading "Energy-Related Commodities" in Item 15 — Note 5, Accounting for Derivative Instruments and Hedging Activities, corresponding adjustments to the Consolidated Financial Statements.retail customer rates.
Natural gas prices are a primary driver of coal demand. The low-pricedCoal commodity environment hasprices increased significantly in 2021, which is partly due to supply chain disruptions, as further discussed below in Global Supply Chain Disruptions, as well as stressed coal equities, leadingwhich has led coal suppliers to file for bankruptcy protection, launch debt exchanges, rationalize assets, and cut production.  If multiple parties withdraw from the market, liquidity could be challenged in the short term.  Inventory overhang will be utilized to offset production losses. Coal prices are typically affected by the price of natural gas. 

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(a)excluding discontinued operations and held for sale


Electricity Prices — The price of electricity is a key determinant of the profitability of the Company. Many variables such as the price of different fuels, weather, load growth and unit availability all coalesce to impact the final price for electricity and the Company's profitability. An increase in supply cost volatility in the competitive retail markets may result in smaller companies choosing to exit the market, which may result in further consolidation in the competitive retail space. The following table summarizes average on-peak power prices for each of the major markets in which NRG operates for the years ended December 31, 2018, 2017,2021 and 2016. Power prices were higher for the year ended December 31, 2018 as compared to the same period in 2017 and 2016.  ERCOT2020. The average on-peak power prices were higher primarilyincreased significantly in Texas due to the continued effect of lower reserve margins as a result of asset retirements in the region.  Powerimpact from Winter Storm Uri. The average on-peak power prices increased in East region increased for the year ended December 31, 2018 as comparedand West/Services/Other due to the same period in 2017 and 2016 primarily driven by higher winter demand and higher natural gas prices in the fourth quarter of 2018.prices.
Average On-Peak Power Price ($/MWh) Average On-Peak Power Price ($/MWh)
Year Ended December 31 2018 vs 2017 2017 vs 2016Year Ended December 31,2021 vs 2020
Region2018 2017 2016 Change % Change %Region20212020Change %
Texas (a)
         
Texas (a)
ERCOT - Houston(a)
$37.29
 $33.95
 $26.91
 10% 26%
ERCOT - Houston(a)
$192.17 $27.65 595 %
ERCOT - North(a)
36.26
 25.86
 24.53
 40% 5%
ERCOT - North(a)
189.05 25.85 631 %
East/West        
MISO - Louisiana Hub(b)
43.70
 40.02
 34.30
 9% 17%
EastEast
NY J/NYC(b)
47.19
 38.34
 35.29
 23% 9%
NY J/NYC(b)
48.71 24.55 98 %
NEPOOL(b)
49.96
 37.18
 35.05
 34% 6%
NEPOOL(b)
51.81 26.52 95 %
COMED (PJM)(b)
34.60
 32.46
 32.11
 7% 1%
COMED (PJM)(b)
41.33 22.48 84 %
PJM West Hub(b)
41.66
 34.14
 33.79
 22% 1%
PJM West Hub(b)
45.67 24.49 86 %
WestWest
CAISO - SP15(b)
47.33
 36.48
 31.17
 30% 17%
CAISO - SP15(b)
53.53 38.15 40 %
MISO - Louisiana Hub(b)
MISO - Louisiana Hub(b)
43.05 24.43 76 %
(a) Average on-peak power prices based on real time settlement prices as published by the respective ISOs
(b) Average on-peak power prices based on day aheadday-ahead settlement prices as published by the respective ISOs


The following table summarizes average realized power prices for each region in which NRG, operatesincluding the impact of settled hedges, for the years ended December 31, 2018, 2017,2021 and 2016, which2020:
 Average Realized Power Price ($/MWh)
Year Ended December 31,2021 vs 2020
Segment20212020Change %
East(a)
$36.33 $34.92 %
West/Services/Other43.63 34.80 25 %
(a) Average Realized Power Price reflects energy sales from the impactgeneration fleet, including sales to the retail component of settled hedges.the East Segment. Intercompany financial transactions hedging generation with the retail operations make up ($8.03)/MWh in the year ended December 31, 2021 and $12.18/MWh in the year ended December 31, 2020
 Average Realized Power Price ($/MWh)
 Year Ended December 31 2018 vs 2017 2017 vs 2016
Region2018 2017 2016 Change % Change %
Texas$37.12
 $33.45
 $40.49
 11 % (17)%
East/West43.70
 46.48
 47.14
 (6)%
(1)%


The average realized power prices increased less than average on peak power prices for the year ended December 31, 20182021, as compared to the same period in 2017, increased in Texas as a result of higher power prices, and decreased in East/West as a result of2020, due to the roll off of hedges. TheCompany's multi-year hedging program impacting average realized power prices, for December 31, 2017 as comparedwhile on peak power prices increased due to increased natural gas prices and warmer June temperatures in California.
Increased Awareness of, and Action to Combat, Climate Change — Diverse groups of stakeholders, including investors, asset managers, financial institutions, non-government organizations, industry coalitions, individual companies, consumer groups and academic institutions, are increasingly engaged in efforts to limit global warming in the same period in 2016 decreased in both Texas and East/West aspost-industrial era to well below 2 degrees Celsius. As a result, policymakers and regulators at regional, national, sub-national and local levels of government, both in the United States and other parts of the roll offworld, are increasingly focused on actions to combat climate change.
NRG actively monitors climate change related developments that could impact its business and regularly engages with a diverse set of hedges.stakeholders on these issues. Such engagement helps the Company identify and pursue potential opportunities both to decarbonize its business and better serve its customers. NRG is committed to providing transparent disclosures of its climate risks and opportunities to stakeholders. The Company became an early supporter of the Task Force on Climate-related Financial Disclosures ("TCFD") recommendations after they were issued in 2017, published a TCFD mapping disclosure in December 2020 and issued a stand-alone TCFD report in December 2021.

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CleanLower Carbon Infrastructure Development — Policy mechanisms at the state and federal level, including production and investment tax credits, cash grants, loan guarantees, accelerated depreciation tax benefits, RPS, and carbon trading plans, have supported and continue to support the development of renewable generation, demand-side and smart grid, and other cleanlower carbon infrastructure technologies. In addition, the costs associated with the development of cleanlower carbon infrastructure, such as wind and solar generating facilities, continuescontinue to decline. These factors continue to drive increases in the development of cleanlower carbon infrastructure in the markets where the Company participates, which may impact the ability of the Company's generating facilities to participate in those markets. According to ERCOT, Inc., more than 30%39% of 20182021 energy consumption in the ERCOT market was generated from carbon-freecarbon emission-free resources, with wind power contributing 19%24%. Certainly,In addition, subsidies and incentives have contributed to the increase in renewable power sources, but it is also true thatand customer awareness/awareness and preferences have shiftedare shifting toward sustainable solutions. Alternatively, increasedIncreased demand for sustainable energy products from both residential and commercial consumerscustomers creates opportunities for diversified product offerings in competitive retail markets.

Digitization and Customization — The electric industry is experiencing major technology changes in the way power is distributed and used by end-use customers. The electric grid is shifting from a centralized analog system, where power is generated from limited sources and flows in one direction, to a decentralized multidirectional system, where power can be generated from a number of distributed resources and stored or dispatched on an as-needed basis. In addition, consumerscustomers are seeking new ways to engage with their power providers. Technologies like smart thermostats, appliances and electric vehicles are giving individuals more choice and control over their electricity usage.
Weather— Weather conditions in the regions of the U.S. in which NRG doesconducts business influence the Company's financial results. Weather conditions can affect the supply and demand for electricity and fuels and may also impact the availability of the Company's generating assets. Changes in energy supply and demand may impact the price of these energy commodities in both the spot and forward markets, which may affect the Company's results in any given period. Typically, demand for and the price of electricity is higher in the summer and the winter seasons, when temperatures are more extreme. The demand for and price of natural gas is also generally higher in the winter. However, all regions of the U.S. typically do not experience extreme weather conditions at the same time, thus NRG isNRG's operations are typically not exposed to the effects of extreme weather in all parts of its business at once. A significant portion of the Company's business is located within Texas, and extreme weather conditions occurring in Texas may have a material impact on the Company's financial position.
For discussion of the recent weather event in Texas, see Significant Events - Extreme Weather Event in Texas During February 2021and expected Uplift Securitization Proceeds below.
Global Supply Chain Disruptions — There are currently global supply chain disruptions impacting natural gas, coal and other fuels and materials necessary for the production and sale of electricity to our retail customers. These supply chain disruptions are due in part to increased demand driven by a number of factors outside the Company's control including the COVID-19 pandemic, labor shortages and extreme weather events in the U.S. These factors are impacting the dispatch of generation facilities, as well as the costs to serve our retail customers. The Company expects supply chain disruptions will continue throughout the remainder of 2022. We are working closely with our suppliers and customers to minimize any potential adverse impacts of these events. We will continue to actively monitor all direct and indirect potential impacts of the supply chain disruptions, and will seek to mitigate and minimize their impact on our business.
Other Factors— A number of other factors significantly influence the level and volatility of prices for energy commodities and related derivative products for NRG's business. These factors include:
seasonal, daily and hourly changes in demand;
extreme peak demands;
available supply resources;
transportation and transmission availability and reliability within and between regions;
location of NRG's generating facilities relative to the location of its load-serving opportunities;
procedures used to maintain the integrity of the physical electricity system during extreme conditions; and
changes in the nature and extent of federal and state regulationsregulations.
These factors can affect energy commodity and derivative prices in different ways and to different degrees. These effects may vary throughout the country as a result of regional differences in:
weather conditions;
market liquidity;
capability and reliability of the physical electricity and gas systems;
local transportation systems; and
the nature and extent of electricity deregulationderegulation.
46

Environmental Matters, Regulatory Matters and Legal Proceedings— Details of environmental matters are presented in Item 15 — Note 23, 25, Environmental Matters, to the Consolidated Financial Statements and Item 1 Business, Environmental Matters section.. Details of regulatory matters are presented in Item 15 — Note 22, 24, Regulatory Matters, to the Consolidated Financial Statements and Item 1 Business, Regulatory Matters section.. Details of legal proceedings are presented in Item 15 — Note 21, 23, Commitments and Contingencies, to the Consolidated Financial Statements. Some of this information relates to costs that may be material to the Company's financial results.



Transformation Plan
NRG is well underway in executing its Transformation Plan. The Company expects to fully implement the Transformation Plan by the end of 2020 with a significant portion completed in 2018. The three-part, three-year plan is comprised of the following targets and the Company's achievements towards such targets are as follows:
Operations and Cost Excellence
Recurring cost savings and margin enhancement of $1,065 million, which consists of $590 million of cumulative cost savings, a $215 million net margin enhancement program, $50 million annual reduction in maintenance capital expenditures, and $210 million in permanent selling, general and administrative expense reduction associated with asset sales. The Company realized annual cost savings of $532 million and $32 million of margin enhancements during the year ended December 31, 2018 and is on track to realize $590 million of cost savings and $135 million of margin enhancements in 2019.
The Company expects to realize (i) $370 million of non-recurring working capital improvements through 2020 and (ii) approximately $290 million one-time costs to achieve. By December 31, 2018, NRG has realized $333 million of non-recurring working capital improvements and $194 million of one-time costs to achieve. The Company expects to incur approximately $95 million of one-time costs to achieve in 2019.
Portfolio Optimization
Targeted and completed $3.0 billion of asset sale cash proceeds received through February 28, 2019, as described below:
In 2017, NRG executed asset sales of 322 MW for aggregate cash of $150 million, which includes sales to NRG Yield, Inc. and the sale of Minnesota wind projects to third parties
On March 30, 2018, the Company completed the sale of 100% of its ownership interest in Buckthorn Solar to NRG Yield, Inc. for cash consideration of approximately $42 million
On August 1, 2018, the Company completed the sale of 100% of its ownership interests in BETM to Diamond Energy Trading and Marketing, LLC for $70 million, excluding working capital adjustments. The sale also resulted in the release and return of approximately $119 million of letters of credit, $32 million of parent guarantees, and $4 million of net cash collateral to NRG
On August 31, 2018, the Company completed the sale of its interest in NRG Yield, Inc. and its Renewables Platform to GIP, for approximately $1.348 billion in cash proceeds
On November 1, 2018, the Company offered to Clearway Energy, Inc. its ownership interest in Agua Caliente Borrower 1, LLC, for approximately $120 million, which owns a 35% interest in AGua Caliente, a 290 MW utility scale solar project. The offer expired on January 31, 2019 with no action taken by Clearway Energy, Inc. As a result of this expiration, the Company has removed this asset from the target asset sale cash proceeds under the Transformation Plan.
During the twelve months ended December 31, 2018, the Company completed the sale of various other assets for approximately $28 million
On February 4, 2019, NRG sold the South Central portfolio, a 3,555 MW portfolio of generation assets, for cash consideration of $1 billion, excluding working capital and other adjustments
On February 20, 2019, NRG completed the sale of Guam for cash consideration of approximately $8 million
On February 27, 2019, NRG sold the Carlsbad project, a 528 MW natural gas-fired power plant, for cash consideration of $387 million, excluding working capital and other adjustments
Capital Structure and Allocation
As of December 31, 2018, the Company achieved the previously announced target of reducing consolidated corporate debt to 3.0x net debt / adjusted EBITDA(a) credit ratio on a pro forma basis that includes the South Central Portfolio sale proceeds. To achieve this ratio, the Company completed the following:
Reduction of $9.2 billion in non-recourse debt related to the sale of NRG Yield, Inc. and the Renewable Platform, which includes the debt for Carlsbad Energy Center, as well as the impact of deconsolidation of Agua Caliente and Ivanpah
The Company has completed its targeted $640 million of debt reduction through the redemption of $485 million of its outstanding 6.250% senior notes due 2022 and the Term Loan prepayment of $155 million. The annualized interest savings related to these activities to date totals $37 million

In 2018, the Company's board of directors authorized the Company to repurchase $1.5 billion of its common stock. As of February 28, 2019, the Company completed $1.5 billion of repurchases at an average price of $36.24 per share. In addition, the Company's board of directors authorized in February 2019 an additional $1 billion share repurchase program to be executed in 2019.
(a)    adjusted EBITDA as defined per the Senior Credit Facility

Other Significant Events
The following additional significant events occurred during 2018:
XOOM Energy Acquisition
On June 1, 2018,2021 and through the Company completedfiling date, as further described within this Management's Discussion and Analysis and the acquisition of XOOM Energy, LLC, an electricity and natural gas retailer operating in 19 states, Washington, D.C. and Canada for approximately $213 million in cash. See Note 3, Acquisitions, Discontinued Operations and Dispositions for further discussion on purchase price allocation. The acquisition increased NRG's retail portfolio by approximately 300,000 customers.consolidated financial statements:
Agua Caliente and Ivanpah Deconsolidation
During the third quarter of 2018, the Company, recognized a gain of $8 million on the deconsolidation and subsequent recognition of its 35% interest in Agua Caliente as an equity method investment, as discussed in more detail in Note 3 Acquisitions, Discontinued Operations and Dispositions
During the second quarter of 2018, the Company, recognized a loss of $22 million on the deconsolidation and subsequent recognition of its 54.6% interest in Ivanpah as an equity method investment, as discussed in more detail in Note 15, Investments Accounted for by the Equity Method and Variable Interest Entities.
Financing Activities
On March 21, 2018, the Company repriced the 2023 Term Loan Facility, reducing the interest rate margin by 50 basis points to LIBOR plus 1.75% and reducing the LIBOR floor to 0.00%. As a result of the repricing, the Company expects approximately $47 million in interest savings over the remaining life of the loan.
On May 24, 2018,August 23, 2021, the Company issued $575 million in$1.1 billion of aggregate principal amount at par of 2.75% convertible3.875% senior notes due 2048, as discussed2032 (the "2032 Senior Notes"). The 2032 Senior Notes are senior unsecured obligations of NRG and are guaranteed by certain of its subsidiaries. The 2032 Senior Notes were issued under NRG's Sustainability-Linked Bond Framework, which sets out certain sustainability targets, including reducing greenhouse gas emissions. Failure to meet such sustainability targets will result in more detail in Note 11, Debta 25 basis point increase to the interest rate payable on the 2032 Senior Notes from and Capital Leases.
including August 15, 2026.
During the year ended December 31, 2018,2021, the Company completed senior note repurchases of $1,061millionredeemed $1.9 billion in aggregate principal of its senior notesSenior Notes for $1,106$1.9 billion using the proceeds of the 2032 Senior Notes and cash on hand.
Extreme Weather Event in Texas During February 2021 and expected Uplift Securitization proceeds
During February 2021, Texas experienced unprecedented cold temperatures for a prolonged duration as a result of Winter Storm Uri, resulting in a power emergency, blackouts, and an estimated all-time peak demand of 77 GW (without load shed). Ahead of the event, NRG launched residential customer communications calling for conservation across all of its brands, and initiated residential and commercial and industrial demand response programs to curtail customer load. The Company maximized available generating capacity and brought in additional resources to supplement in-state staff with technical and operating experts from the rest of its U.S. fleet.
The Texas Legislature passed House Bill 4492, which among other things, authorized ERCOT to obtain $2.1 billion of financing to distribute to LSEs that were charged and paid to ERCOT exceptionally highly priced ORDPA and ancillary service costs during Winter Storm Uri. Based on LSE-level detail published by the PUCT on December 7, 2021, NRG will receive $689 million from ERCOT.
During the year ended December 31, 2021, Winter Storm Uri's pre-tax financial impact to the Company was a loss of $380 million, which reflects the recovery of $689 million of cost of operations as a result of the proceeds we will receive from the Uplift Securitization discussed above, with receipt expected to occur during the second quarter of 2022. The Company continues to pursue additional mitigants including, but not limited to, customer bad debt mitigation, counterparty default recovery, and additional ERCOT default recovery.
Direct Energy Acquisition
On January 5, 2021, the Company acquired Direct Energy, which had been a North American subsidiary of Centrica. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increased NRG's retail portfolio by over 3 million customers and complements its integrated model. It also broadened the Company's presence in the Northeast and into states and locales where it did not previously operate, supporting NRG's objective to diversify its business. See Item 15 Note 4, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements for further discussion.
Limestone Extended Outage
In early July 2021, Limestone Unit 1 came offline as a result of damage to the duct work associated with the flue gas desulfurization system. Based on management's current assessment of necessary remediation efforts, Limestone Unit 1 is expected to remain on an outage until the second quarter of 2022.
PJM Base Residual Auction results and Planned Retirement of 1,600 MWs of PJM Coal Capacity
During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released, leading the Company to announce the near-term retirement of a significant portion of its PJM coal generating assets in June 2022. On July 30, 2021, PJM identified reliability impacts resulting from the proposed deactivation of one of those assets, Indian River Unit 4. On August 27, 2021 the Company notified PJM that it would continue operations at Indian River Unit 4 until the reliability upgrades identified by PJM were completed, provided that the unit receives a satisfactory and compensatory 'reliability must run' arrangement.
47

The Company recorded impairment losses of $271 million and $35 million on the PJM generating assets and Midwest Generation goodwill, respectively, in connection with the decline in PJM capacity prices and the near-term retirement dates of certain assets. See Item 15 Note 11, Asset Impairments to the Consolidated Financial Statements for further discussion. The Company is continuing to evaluate the viability of the remaining PJM generating assets.
Sale of 4.8 GW of Fossil Generation Assets
On December 1, 2021, the Company sold approximately 4,850 MWs of fossil generating assets from its East and West regions of operations to Generation Bridge, an affiliate of ArcLight Capital Partners. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025. See Item 15 Note 4, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements for further discussion.
Sale of Agua Caliente
On February 3, 2021, the Company completed the sale of its 35% ownership in Agua Caliente to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including accrued interest, as discussedcash disposed of $7 million.
Share Repurchases
In December 2021, the Company's board of directors authorized the Company to repurchase $1.0 billion of its common stock. Through December 31, 2021, the Company completed $53 million of share repurchases at an average price of $40.22 per share, including $9 million of equivalent shares purchased in more detaillieu of tax withholdings on equity compensation issuances. Through February 24, 2022, an additional $82 million of share repurchases were executed at an average price of $40.26 per share, including $6 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuances. See Item 15 - Note 11, Debt and 16, Capital Leases.Structure, to the Consolidated Financial Statements for additional discussion.
Renewable Power Purchase Agreements
The annualized interest savings relatedCompany's strategy is to procure mid to long-term generation through power purchase agreements. As of December 31, 2021, NRG has entered into PPAs totaling approximately 2.6 GW with third-party project developers and other counterparties. The average tenor of these activitiesagreements is twelve years. The Company expects to date totals $20 millioncontinue evaluating and executing similar agreements that support the needs of the business. The total GW entered into through PPAs may be impacted by contract terminations when they occur.

Dividend Increase

In the first quarter of 2021, NRG increased the annual dividend to $1.30 from $1.20 per share. In 2022, NRG further increased the annual dividend to $1.40 per share, representing an 8% increase from 2021. The Company expects to target an annual dividend growth rate of 7-9% per share in subsequent years.
COVID-19
While the pandemic presented risks, as further described in Part II, Item 1A — Risk Factors of this Form 10-K, to the Company’s business, there was not a material adverse impact on the Company’s results of operations for the years ended December 31, 2021 and 2020.
48

Consolidated Results of Operations for the years ended December 31, 20182021 and 20172020
The following table provides selected financial information for the Company:
 Year Ended December 31,
(In millions, except otherwise noted)20212020Change
Operating Revenues   
Retail revenue$23,561 $7,460 $16,101 
Energy revenue(a)
1,215 539 676 
Capacity revenue(a)
775 680 95 
Mark-to-market for economic hedging activities(164)95 (259)
Contract amortization(30)— (30)
Other revenues(a)(b)
1,632 319 1,313 
Total operating revenues26,989 9,093 17,896 
Operating Costs and Expenses   
Cost of fuel1,844 851 (993)
Purchased energy and other cost of sales(c)
19,766 4,069 (15,697)
Mark-to-market for economic hedging activities(2,880)214 3,094 
Contract and emissions credit amortization(c)
43 (38)
Operations and maintenance1,370 1,129 (241)
Other cost of operations339 272 (67)
Cost of operations (excluding depreciation and amortization shown below)20,482 6,540 (13,942)
Depreciation and amortization785 435 (350)
Impairment losses544 75 (469)
Selling, general and administrative costs1,293 810 (483)
Provision for credit losses698 108 (590)
Acquisition-related transaction and integration costs93 23 (70)
Total operating costs and expenses23,895 7,991 (15,904)
Gain on sale of assets247 244 
Operating Income3,341 1,105 2,236 
Other Income/(Expense)   
Equity in earnings of unconsolidated affiliates17 17 — 
Impairment losses on investments— (18)18 
Other income, net63 67 (4)
Loss on debt extinguishment, net(77)(9)(68)
Interest expense(485)(401)(84)
Total other expenses(482)(344)(138)
Income Before Income Taxes2,859 761 2,098 
Income tax expense672 251 421 
Net Income$2,187 $510 $1,677 
Business Metrics   
Average natural gas price — Henry Hub ($/MMBtu)$3.84 $2.08 85 %
(a)Includes realized gains and losses from financially settled transactions
(b)Includes trading gains and losses and ancillary revenues
(c)Includes amortization of SO2 and NOx credits and excludes amortization of RGGI credits

Gross Margin
 Year Ended December 31,

(in millions except otherwise noted)2018
2017
Change
Operating Revenues 
 
 
Energy revenue (a)
$1,548

$1,636

$(88)
Capacity revenue (a)
670

612

58
Retail revenue7,105

6,378

727
Mark-to-market for economic hedging activities(130)
252

(382)
Contract amortization

(1)
1
Other revenues (b)
285

197

88
Total operating revenues9,478

9,074

404
Operating Costs and Expenses 
 
 
Cost of sales (b)
5,878

5,432

(446)
Mark-to-market for economic hedging activities(144)
46

190
Contract and emissions credit amortization (c)
27

34

7
Operations and maintenance1,083

1,097

14
Other cost of operations264

277

13
Total cost of operations7,108

6,886

(222)
Depreciation and amortization421

596

175
Impairment losses99

1,534

1,435
Selling, general and administrative799

836

37
Reorganization costs90

44

(46)
Development costs11

22

11
Total operating costs and expenses8,528

9,918

1,390
Other income - affiliate

87

(87)
Gain on sale of assets32

16

16
Operating Income/(Loss)982

(741)
1,723
Other Income/(Expense) 
 
 
Equity in earnings of unconsolidated affiliates9

(14)
23
Impairment losses on investments(15)
(79)
64
Other income, net18

51

(33)
Net loss on debt extinguishment(44)
(49)
5
Interest expense(483)
(557)
74
Total other expenses(515)
(648)
133
Income/(Loss) from Continuing Operations Before Income Taxes467

(1,389)
1,856
Income tax expense/(benefit)7

(44)
51
Income/(Loss) from Continuing Operations460

(1,345)
1,805
Loss from discontinued operations, net of income tax(192)
(992)
800
Net Income/(Loss)268

(2,337)
2,605
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests

(184)
184
Net Income/(Loss) Attributable to NRG Energy, Inc. $268

$(2,153)
$2,421
Business Metrics     
Average natural gas price — Henry Hub ($/MMBtu)$3.09
 $3.11
 (1)%
The Company calculates gross margin in order to evaluate operating performance as operating revenues less cost of fuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization and depreciation and amortization.
(a)Includes realized gains and losses from financially settled transactions
(b)Includes unrealized trading gains and losses
(c)
Includes amortization of SO2 and NOx credits and excludes amortization of RGGI credits
49


Economic Gross Margin
In addition to gross margin, the Company evaluates its operating performance using the measure of economic gross margin, which is not a GAAP measure and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report. Economic gross margin should be viewed as a supplement to and not a substitute for the Company's presentation of gross margin, which is the most directly comparable GAAP measure. Economic gross margin is not intended to represent gross margin. The Company believes that economic gross margin is useful to investors as it is a key operational measure reviewed by the Company's chief operating decision maker. Economic gross margin is defined as the sum of retail revenue, energy revenue, capacity revenue and other revenue, less cost of fuels, purchased energy and other cost of sales.
Economic gross margin does not include mark-to-market gains or losses on economic hedging activities, contract amortization, emission credit amortization, depreciation and amortization, operations and maintenance, or other operating costs.costs of operations.
The tables below present the composition and reconciliation of gross margin and economic gross margin which reflects the Company's current view of reporting segments for the years ended December 31, 20182021 and 2017:2020:
Year Ended December 31, 2021
($ in millions, except otherwise noted)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue$8,410 $11,862 $3,290 $(1)$23,561 
Energy revenue329 508 371 1,215 
Capacity revenue— 718 57 — 775 
Mark-to-market for economic hedging activities(3)(88)(86)13 (164)
Contract amortization— (26)(4)— (30)
Other revenue1,557 59 25 (9)1,632 
Operating revenue(a)
10,293 13,033 3,653 10 26,989 
Cost of fuel(1,424)(196)(224)— (1,844)
Purchased energy and other costs of sales(b)(c)(d)
(6,108)(10,775)(2,882)(1)(19,766)
Mark-to-market for economic hedging activities988 1,803 102 (13)2,880 
Contract and emission credit amortization(28)(17)— (43)
Depreciation and amortization(331)(338)(88)(28)(785)
Gross margin$3,420 $3,499 $544 $(32)$7,431 
Less: Mark-to-market for economic hedging activities, net985 1,715 16 — 2,716 
Less: Contract and emission credit amortization, net(54)(21)— (73)
Less: Depreciation and amortization(331)(338)(88)(28)(785)
Economic gross margin$2,764 $2,176 $637 $(4)$5,573 
(a) Includes trading gains and losses and ancillary revenues
(b) Includes capacity and emissions credits
(c) Includes $2,648 million, $183 million and $1,033 million of TDSP expense in Texas, East, and West/Services/Other respectively
(d) Excludes depreciation and amortization shown separately
Business MetricsTexasEastWest/Services/OtherCorporate/EliminationsTotal
Home electricity sales volume (GWh)42,397 14,108 2,252 — 58,757 
Business electricity sales volume (GWh)34,367 53,204 10,625 — 98,196 
Home natural gas retail sales volumes (MDth)— 74,920 97,272 — 172,192 
Business natural gas retail sales volumes (MDth)— 1,595,533 109,021 — 1,704,554 
Average retail Home customer count (in thousands)(a)
3,055 1,844 962 — 5,861 
Ending retail Home customer count (in thousands)(a)
3,024 1,766 932 — 5,722 
GWh sold36,920 11,452 8,503 — 56,875 
GWh generated(b) (c)
36,920 7,494 7,949 — 52,363 
(a) Home customer count includes recurring residential customers, services customers and municipal aggregations
(b) Includes owned and leased generation, excludes tolled generation and equity investments
(c) Includes 1,054 GWh and 2,445 GWh in East and West/Services/Other respectively that was sold to Generation Bridge in December 2021


50

Year Ended December 31, 2020
Year Ended December 31, 2018
  Generation    
(In millions except otherwise noted)Retail Texas 
East/West/Other(a)(b)
 Subtotal Corporate/Eliminations Total
($ in millions, except otherwise noted)($ in millions, except otherwise noted)TexasEast
West/Services/Other(a)
Corporate/EliminationsTotal
Retail revenueRetail revenue$6,061 $1,305 $96 $(2)$7,460 
Energy revenue$
 $1,585
 $1,092
 $2,677
 $(1,129) $1,548
Energy revenue24 183 333 (1)539 
Capacity revenue
 1
 669
 670
 
 670
Capacity revenue— 620 61 (1)680 
Retail revenue7,110
 
 
 
 (5) 7,105
Mark-to-market for economic hedging activities(7) (174) (28) (202) 79
 (130)Mark-to-market for economic hedging activities88 (3)95 
Other revenue
 84
 203
 287
 (2) 285
Other revenue222 62 43 (8)319 
Operating revenue7,103
 1,496
 1,936
 3,432
 (1,057) 9,478
Operating revenue6,309 2,258 530 (4)9,093 
Cost of fuel(23) (734) (557) (1,291) (4) (1,318)Cost of fuel(546)(151)(154)— (851)
Other costs of sales(c)
(5,285) (133) (275) (408) 1,133
 (4,560)
Purchased energy and other costs of sales(a)(b)(c)
Purchased energy and other costs of sales(a)(b)(c)
(3,110)(876)(89)(4,069)
Mark-to-market for economic hedging activities260
 2
 (39) (37) (79) 144
Mark-to-market for economic hedging activities(211)— (8)(214)
Contract and emission credit amortization
 (26) (1) (27) 
 (27)Contract and emission credit amortization(5)— — — (5)
Depreciation and amortizationDepreciation and amortization(227)(138)(36)(34)(435)
Gross margin$2,055
 $605
 $1,064
 $1,669
 $(7) $3,717
Gross margin$2,210 $1,098 $251 $(40)$3,519 
Less: Mark-to-market for economic hedging activities, net253
 (172) (67) (239) 
 14
Less: Mark-to-market for economic hedging activities, net(209)93 (3)— (119)
Less: Contract and emission credit amortization, net
 (26) (1) (27) 
 (27)
Less: Contract and emission credit amortizationLess: Contract and emission credit amortization(5)— — — (5)
Less: Depreciation and amortizationLess: Depreciation and amortization(227)(138)(36)(34)(435)
Economic gross margin$1,802
 $803
 $1,132
 $1,935
 $(7) $3,730
Economic gross margin$2,651 $1,143 $290 $(6)$4,078 
(a) Includes capacity and emissions credits(a) Includes capacity and emissions credits
(b) Includes $1,967 million and $10 million of electric TDSP charges for Texas and East, respectively
(b) Includes $1,967 million and $10 million of electric TDSP charges for Texas and East, respectively
(c) Excludes depreciation and amortization shown separately
(c) Excludes depreciation and amortization shown separately
Business Metrics           Business MetricsTexasEastWest/Services/OtherCorporate/EliminationsTotal
MWh sold (thousands)  42,701
 $24,988
      
MWh generated (thousands)  38,214
 $21,089
      
(a) Includes International, Renewables, and Generation eliminations
(b) Includes Agua, BETM and Ivanpah which were sold or deconsolidated as of August, July and April 2018, respectively
(c) Includes purchased energy, capacity and emissions credits
Home electricity sales volume (GWh)Home electricity sales volume (GWh)38,473 10,221 — — 48,694 
Business electricity sales volume (GWh)Business electricity sales volume (GWh)17,928 1,596 — — 19,524 
Natural gas retail sales volumes (MDth)Natural gas retail sales volumes (MDth)— 23,509 — — 23,509 
Average retail Home customer count (in thousands)(a)
Average retail Home customer count (in thousands)(a)
2,449 1,175 — — 3,624 
Ending retail Home customer count (in thousands)(a)
Ending retail Home customer count (in thousands)(a)
2,451 1,136 — — 3,587 
GWh soldGWh sold31,385 8,136 9,569 — 49,090 
GWh generated(b)(c)
GWh generated(b)(c)
31,385 4,102 9,171 — 44,658 
(a) Home customer count includes recurring residential customers and municipal aggregations
(a) Home customer count includes recurring residential customers and municipal aggregations
(b) Includes owned and leased generation, excludes tolled generation and equity investments
(b) Includes owned and leased generation, excludes tolled generation and equity investments
(c) Includes 1,192 GWh and 3,002 GWh in East and West/Services/Other respectively that was sold to Generation Bridge in December 2021(c) Includes 1,192 GWh and 3,002 GWh in East and West/Services/Other respectively that was sold to Generation Bridge in December 2021





51

 Year Ended December 31, 2017 
   Generation     
(In millions except otherwise noted)Retail Texas 
East/West/Other(a)
 Subtotal Corporate/Eliminations Total 
Energy revenue$
 $1,427
 $1,298
 $2,725
 $(1,089) $1,636
 
Capacity revenue
 22
 596
 618
 (6) 612
 
Retail revenue6,374
 
 
 
 4
 6,378
 
Mark-to-market for economic hedging activities(4) 94
 (57) 37
 219
 252
 
Contract amortization(1) 
 
 
 
 (1) 
Other revenue
 35
 200
 235
 (38) 197
 
Operating revenue6,369
 1,578
 2,037
 3,615
 (910) 9,074
 
Cost of fuel(13) (732) (542) (1,274) 1
 (1,286) 
Other costs of sales(b) 
(4,759) (137) (370) (507) 1,120
 (4,146) 
Mark-to-market for economic hedging activities181
 (21) 13
 (8) (219) (46) 
Contract and emission credit amortization
 (30) (4) (34) 
 (34) 
Gross margin$1,778
 $658
 $1,134
 $1,792
 $(8) $3,562
 
Less: Mark-to-market for economic hedging activities, net177
 73
 (44) 29
 
 206
 
Less: Contract and emission credit amortization, net(1) (30) (4) (34) 
 (35) 
Economic gross margin$1,602
 $615
 $1,182
 $1,797
 $(8) $3,391
 
Business Metrics            
MWh sold (thousands)  42,662
 27,923
       
MWh generated (thousands)  38,694
 21,338
       
(a) Includes International, Renewables, and Generation eliminations 
(b) Includes purchased energy, capacity and emissions credits 


The table below represents the weather metrics for 20182021 and 2017:2020:
 Year ended
December 31,
Quarter ended
December 31,
Quarter ended September 30,Quarter ended
June 30,
Quarter ended
March 31,
Weather MetricsTexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
2021 
CDDs(b)
2,960 1,275 1,877 386 91 185 1,589 784 1,134 899 362 521 86 38 37 
HDDs(b)
1,562 4,306 2,060 360 1,377 662 — 38 82 541 192 1,120 2,350 1,201 
2020
CDDs3,102 1,362 1,971 280 79 181 1,640 874 1,152 1,012 353 562 170 56 76 
HDDs1,501 4,268 1,939 634 1,517 763 72 70 634 178 791 2,045 994 
10-year average
CDDs3,090 1,297 1,924 281 85 157 1,690 818 1,159 1,003 356 557 116 38 51 
HDDs1,691 4,558 2,044 693 1,584 774 56 10 59 521 193 937 2,397 1,067 
 Years ended December 31,Quarters ended December 31,Quarters ended September 30,Quarters ended June 30,Quarters ended March 31,
Weather MetricsTexas East/West/Other Texas East/West/Other Texas East/West/Other Texas East/West/Other Texas East/West/Other
2018                   
CDDs(a)
3,130
 1,213
 228
 74
 1,657
 856
 1,101
 265
 144
 18
HDDs(a)
1,874
 3,393
 815
 1,214
 1
 26
 90
 425
 968
 1,728
2017                   
CDDs3,068
 1,155
 311
 84
 1,568
 770
 966
 281
 223
 20
HDDs1,270
 3,198
 665
 1,157
 1
 33
 32
 380
 572
 1,628
10 year average                   
CDDs3,023
 1,059
 264
 69
 1,654
 714
 1,004
 259
 101
 17
HDDs1,728
 3,459
 695
 1,214
 3
 40
 56
 429
 974
 1,776
(a) The West/Services/Other weather metrics are comprised of the average of the CDD and HDD regional results for the West - California and West - South Central regions
(b) National Oceanic and Atmospheric Administration-Climate Prediction Center - A Cooling Degree Day, or CDD, represents the number of degrees that the mean temperature for a particular day is above 65 degrees Fahrenheit in each region. A Heating Degree Day, or HDD, represents the number of degrees that the mean temperature for a particular day is below 65 degrees Fahrenheit in each region. The CDDs/HDDs for a period of time are calculated by adding the CDDs/HDDs for each day during the period

Winter Storm Uri
During the year ended December 31, 2021, Winter Storm Uri's pre-tax financial impact to the Company was a loss of $380 million, which reflects the recovery of $689 million of cost of operations as a result of the expected proceeds from the Uplift Securitization. The following impacts are further discussed in the related sections below:
(In millions)
Gross margin - Texas$88 
Gross margin - East146 
Gross margin - West/Services/Other13 
    Total gross margin247 
(a)Operations and maintenance expenseNational Oceanic(2)
Selling, general and Atmospheric Administration-Climate Prediction Center - A Cooling Degree Day, or CDD, represents the number of degrees that the mean temperatureadministrative costs(29)
Provision for a particular day is above 65 degrees Fahrenheit in each region. A Heating Degree Day, or HDD, represents the number of degrees that the mean temperature for a particular day is below 65 degrees Fahrenheit in each region. The CDDs/HDDs for a period of time are calculated by adding the CDDs/HDDs for each day during the period.credit losses(596)
    Total impact to loss before income taxes$(380)
The Company continues to pursue additional mitigants including, but not limited to, customer bad debt mitigation, counterparty default recovery, and additional ERCOT default recovery.
52

                                                                        


Retail grossGross margin and economic gross margin
The following is a discussion of grossGross margin increased $3.9 billion and economic gross margin for Retail.
 Years ended December 31,
(In millions except otherwise noted)2018 2017
Retail revenue$6,775
 $6,104
Supply management revenue174
 187
Capacity revenues161
 83
Customer mark-to-market(7) (4)
Contract amortization
 (1)
Operating revenue (a)
7,103
 6,369
Cost of sales (b)
(5,308) (4,772)
Mark-to-market for economic hedging activities260
 181
Gross margin$2,055
 $1,778
Less: Mark-to-market for economic hedging activities, net253
 177
Less: Contract and emission credit amortization
 (1)
Economic gross margin$1,802
 $1,602
Business Metrics   
Mass electricity sales volume (GWh) - Texas37,846
 36,169
Mass electricity sales volume (GWh) - All other regions7,968
 6,221
C&I electricity sales volume (GWh) All regions (b)
21,176
 20,400
Natural gas sales volumes (MDth)11,253
 3,212
Average Retail Mass customer count (in thousands)3,063
 2,862
Ending Retail Mass customer count (in thousands)3,320
 2,876
(a)Includes intercompany sales of $5 million and $5 million in 2018 and 2017, respectively, representing sales from Retail to the Texas region
(b)Includes intercompany purchases of $1,163 million and $1,090 million in 2018 and 2017, respectively
Retail gross margin increased $277 million and retail economic gross margin increased $200 million for the year ended December 31, 2018, compared to the same period in 2017, due to:
 (In millions)
Higher gross margin driven by margin enhancement initiatives enhancing customer product, retention, term and mix of $3.30 per MWh, or $208 million partially offset by higher supply costs due to increased power prices in ERCOT of $2.40 MWh, or $150 million.$58
 Higher gross margin due to higher volumes from net higher average customer counts primarily driven by XOOM acquisition in June 201860
Higher gross margin from the favorable impact of weather due to $44 million from an increase in load in 2018 of 1,893,000 MWh partially offset by an unfavorable impact of $14 million from selling back additional excess supply in 2018 as well as $16 million due to the impacts of Hurricane Harvey in 201746
Higher gross margin due to an increase in capacity revenues from the business solutions unit mainly due to approximately 1,600 additional MWs sold and margin enhancements from the sale of additional capacity of $11 million36
Increase in economic gross margin$200
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges76
Increase in contract and emission credit amortization1
Increase in gross margin$277




Generation gross margin and economic gross margin
Generation gross margin decreased $123 million and generation economic gross margin increased $138 million,$1.5 billion, both of which include intercompany sales, during the year ended December 31, 2018,2021, compared to the same period in 2017.2020. The detail by segment is as follows:

Texas
(In millions)
Higher gross margin due to Winter Storm Uri, primarily driven by hedging optimization, partially offset by the negative impact of an increase in unhedgeable ancillary and operating reserve demand curve, net of securitization proceeds of $689 million$88 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to increased volumes from the acquisition of Direct Energy in January 2021280 
Higher gross margin due to market optimization activities
Lower gross margin due to a 22% increase in overall average costs to serve the retail load, driven primarily by increases in power, ancillary, fuel costs and the effect of the current year Limestone Unit 1 extended forced outage, totaling $349 million, partially offset by higher net revenue primarily driven by increased net revenue rates as a result of changes in customer term, product and mix of $2.50 per MWh, or $156 million(193)
Lower net revenue due to a decrease in load of 834,000 MWhs from weather(72)
Lower net revenue due to attrition and customer mix(5)
Other
Increase in economic gross margin$113 
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges1,194 
Decrease in contract and emission credit amortization
Increase in depreciation and amortization(104)
Increase in gross margin$1,210 
The tables below describe the change in Generation gross margin and generation economic gross margin:

East
(In millions)
Higher gross margin due to Winter Storm Uri, primarily driven by natural gas optimization during volatile pricing that occurred during the weather event$146 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to increased volumes from the acquisition of Direct Energy in January 2021, including $503 million from natural gas activity and $436 million from power activity939 
Higher business demand response gross margin primarily from the early settlement of capacity obligations in 2021 compared to the same period in 2020 of $63 million and higher volumes sold in 2021 of $10 million73 
Higher gross margin due to a lower of cost or market adjustment on oil inventory in 202029 
Lower gross margin from higher supply costs of $8.25 per MWh, or $78 million and lower volumes due to attrition, weather and customer mix of $45 million, partially offset by higher revenue of $3 per MWh, or $29 million(94)
Lower gross margin due to a 20% decrease in average realized pricing primarily at Midwest Generation(39)
Lower gross margin due to the sale of fossil generating assets to Generation Bridge in December 2021(16)
Lower gross margin from market optimization activities(5)
Increase in economic gross margin$1,033 
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges1,622 
Increase in contract amortization(54)
Increase in depreciation and amortization(200)
Increase in gross margin$2,401 
Texas Region
53

 (In millions)
Higher gross margin due to a 11% increase in average realized prices$153
Higher gross margin from sales of NOx emission credits36
Higher gross margin from commercial optimization activities5
Higher gross margin due to margin enhancement initiatives from reduced fuel supply costs3
Lower gross margin driven by planned outages for both units at STP in 2018 as compared to a single unit planned outage in 2017(9)
Lower gross margin due to an increase in tolling purchases in 2018 as a result of increased demand and the cancellation of the Greens Bayou RMR agreement in 2017(9)
Other9
Increase in economic gross margin$188
Decrease in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges(245)
Increase in contract and emission credit amortization4
Decrease in gross margin$(53)
West/Services/Other
(In millions)
Higher gross margin due to Winter Storm Uri, driven by optimization during volatility in gas pricing$13 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to the acquisition of Direct Energy in January 2021425 
Lower gross margin primarily at Cottonwood driven by an 83% increase in fuel cost, partially offset by a 41% increase in realized power prices.(31)
Lower gross margin primarily due to prior year MISO uplift payments resulting from out-of-market dispatch during Hurricane Laura(29)
Lower gross margin from generation outage insurance proceeds received in 2020 for forced outages in 2019, partially offset by Sunrise business interruption proceeds received in 2021 for forced outages in 2019(22)
Lower gross margin from market optimization activities(9)
Lower gross margin due to the sale of fossil generating assets to Generation Bridge in December 2021(7)
Other
Increase in economic gross margin$347 
Increase in mark-to-market for economic hedges primarily due to net unrealized gains/losses on open positions related to economic hedges19 
Increase in contract amortization(21)
Increase in depreciation and amortization(52)
Increase in gross margin$293 


East/West Region
 (In millions)
Lower gross margin primarily due to Ivanpah and Agua Caliente being deconsolidated in April 2018 and August 2018, respectively$(123)
Lower gross margin driven by a 26% decrease in realized capacity pricing in New York and expiration of the Long Beach capacity toll in July 2017(51)
Lower gross margin mainly due to an 11% decrease in average realized prices, primarily at Midwest Generation(42)
Lower gross margin due to decreased load contract volumes coupled with lower prices(29)
Lower gross margin at Sunrise in 2018 due to planned major maintenance activities that extended into a forced outage.(17)
Higher gross margin due to a 32% increase in PJM capacity prices and a 51% increase in NEISO capacity prices132
Higher gross margin from commercial optimization activities35
Higher gross margin due to 2017 lower cost of market adjustment for fuel inventory31
Higher gross margin as a result of trading activity at BETM8
Higher gross margin due to margin enhancement initiatives from reduced fuel supply costs4
Other2
Decrease in economic gross margin$(50)
Decrease in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges(23)
Increase in contract and emission credit amortization3
Decrease in gross margin$(70)


Mark-to-market for Economic Hedging Activities
Mark-to-market for economic hedging activities includes asset-backed hedges that have not been designated as cash flow hedges. Total net mark-to-market results decreasedincreased by $192 million$2.8 billion during the year ended December 31, 2018,2021, compared to the same period in 2017.2020.
The breakdown of gains and losses included in operating revenues and operating costs and expenses by regionsegment was as follows:
Year Ended December 31, 2021
(In millions)TexasEastWest/Services/OtherEliminationsTotal
Mark-to-market results in operating revenues    
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges$— $(34)$(4)$(2)$(40)
Reversal of acquired (gain) positions related to economic hedges— (6)— — $(6)
Net unrealized (losses) on open positions related to economic hedges(3)(48)(82)15 (118)
Total mark-to-market (losses) in operating revenues$(3)$(88)$(86)$13 $(164)
Mark-to-market results in operating costs and expenses    
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges$(3)$— $— $$(1)
Reversal of acquired loss/(gain) positions related to economic hedges42 235 (15)— 262 
Net unrealized gains on open positions related to economic hedges949 1,568 117 (15)2,619 
Total mark-to-market gains in operating costs and expenses$988 $1,803 $102 $(13)$2,880 

54

 Year Ended December 31, 2018
   Generation   
 Retail Texas East/West/Other 
Elimination (a)
 Total
   (In millions)
Mark-to-market results in operating revenues         
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(2) $32
 $(3) $(104) $(77)
Net unrealized (losses)/gains on open positions related to economic hedges(5) (206) (25) 183
 (53)
Total mark-to-market (losses)/gains in operating revenues$(7) $(174) $(28) $79
 $(130)
Mark-to-market results in operating costs and expenses         
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(81) $(6) $(13) $104
 $4
Reversal of acquired gain positions related to economic hedges.(10) 
 
 
 (10)
Net unrealized gains/(losses) on open positions related to economic hedges351
 8
 (26) (183) 150
Total mark-to-market gains/(losses) in operating costs and expenses260
 $2
 $(39) $(79) $144
(a)Represents the elimination of the intercompany activity between Retail and Generation

The breakdown of gains and losses included in operating revenues and operating costs and expenses by region was as follows:
 Year Ended December 31, 2017
   Generation   
 Retail Texas East/West/Other 
Elimination (a)
 Total
   (In millions)
Mark-to-market results in operating revenues         
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(2) $140
 $(72) $64
 $130
Net unrealized (losses)/gains on open positions related to economic hedges(2) (46) 15
 155
 122
Total mark-to-market (losses)/gains in operating revenues$(4) $94
 $(57) $219
 $252
Mark-to-market results in operating costs and expenses         
Reversal of previously recognized unrealized gains on settled positions related to economic hedges$(1) $(17) $(1) $(64) $(83)
Net unrealized gains/(losses) on open positions related to economic hedges182
 (4) 14
 (155) 37
Total mark-to-market gains/(losses) in operating costs and expenses$181
 $(21) $13
 $(219) $(46)
(a)Represents the elimination of the intercompany activity between Retail and Generation

Year Ended December 31, 2020
(In millions)TexasEastWest/Services/OtherEliminationsTotal
Mark-to-market results in operating revenues    
Reversal of previously recognized unrealized losses/(gains) on settled positions related to economic hedges$$33 $(7)$$31 
Net unrealized gains on open positions related to economic hedges55 64 
Total mark-to-market gains/(losses) in operating revenues$$88 $(3)$$95 
Mark-to-market results in operating costs and expenses    
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(87)$$— $(4)$(86)
Reversal of acquired loss positions related to economic hedges.— — 
Net unrealized (losses) on open positions related to economic hedges(126)(2)— (4)(132)
Total mark-to-market (losses)/gains in operating costs and expenses$(211)$$— $(8)$(214)
Mark-to-market results consist of unrealized gains and losses on contactscontracts that are yet to be settled. The settlement of these transactions is reflected in the same revenue or cost caption as the items being hedged.

The reversals of acquired gain or loss positions were valued based upon the forward prices on the acquisition date.
For the year ended December 31, 20182021 the $130$164 million loss in operating revenues from economic hedge positions was driven primarily by a decrease in the value of open positions as a result of increases in East and West/Services/Other power prices, as well as the reversal of previously recognized unrealized gains on contracts that settled during the period, as well as a decrease in value of open positions as a result of losses on ERCOT heat rate positions due to heat rate expansion.period. The $144 million$2.9 billion gain in operating costs and expenses from economic hedge positions was driven primarily by an increase in the value of open positions as a result of increases in ERCOT heat rate, partially offset bynatural gas and power prices across all segments as well as the reversal of acquired contracts that settled during the year.
For the year ended December 31, 2020 the $95 million gain positions.in operating revenues from economic hedge positions was driven primarily by an increase in the value of open positions as a result of decreases in New York capacity prices, as well as the reversal of previously recognized unrealized losses on contracts that settled during the period. The $214 million loss in operating costs and expenses from economic hedge positions was driven primarily by a decrease in the value of open positions as a result of decreases in ERCOT power prices and heat rate contraction, as well as the reversal of previously recognized unrealized gains on contracts that settled during the period.

In accordance with ASC 815, the following table represents the results of the Company's financial and physical trading of energy commodities for the years ended December 31, 20182021 and 2017.2020. The realized and unrealized financial and physical trading results are included in operating revenue. The Company's trading activities are subject to limits within the Company's Risk Management Policy.
 Year ended December 31,
(In millions)20212020
Trading gains/(losses) 
Realized$124 $41 
Unrealized(32)(5)
Total trading gains$92 $36 
 Year ended December 31,
(In millions)2018 2017
Trading gains/(losses)   
Realized$77
 $43
Unrealized17
 (11)
Total trading gains$94
 $32



Operations and Maintenance ExpenseExpenses



Generation
Corporate
Eliminations


Retail
Texas
East/West/Other


Total




Year Ended December 31, 2018$209

$437

$440

$3

$(6)
$1,083
Year Ended December 31, 2017$224

$387

$458

$31

$(3)
$1,097
Operations and maintenance expenses decreasedare comprised of the following:
(In millions)TexasEastWest/Services/OtherCorporateEliminationsTotal
Year Ended December 31, 2021$703 $452 $218 $$(5)$1,370 
Year Ended December 31, 2020651 371 104 (6)1,129 
55


Operations and maintenance expenses increased by $14 million for the year ended December 31, 2018, compared to the same period in 2017, due to the following:
 (In millions)
Decrease in operations and maintenance due to cost efficiencies as a result of the Transformation Plan$(70)
Decrease in operations and maintenance due to the deconsolidation of Ivanpah and Agua Caliente in April 2018 and August 2018, respectively(31)
Increase in major maintenance due to planned outages of $19 million in Texas and planned outages for both units at STP in 2018 as compared to a planned outage for a single unit in 2017 of $22 million41
2018 payments in settlement of certain legal matters13
Increase in technology and personnel costs for customer operations and retention related to margin enhancement11
Increase in deactivation cost primarily at Dunkirk8
Increase in costs due to the XOOM acquisition7
Other7
 $(14)
(a) Approximately $162 million of additional cost savings were achieved in the year ended December 31, 2017, as compared to the year ended December 31, 2016, as the savings became permanent through the Transformation Plan


Other Cost of Operations



Generation

Retail
Texas
East/West/Other
Total



(In millions)
Year Ended December 31, 2018$109

$76

$79

$264
Year Ended December 31, 2017$99

$81

$97

$277
Other cost of operations, decreased by $13$241 million for the year ended December 31, 2018,2021 compared to the same period in 2017.2020, due to the following:
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$257 
Increase in major maintenance primarily due to the duration and scope of planned and forced outages in Texas during 202127 
Increase in variable operation and maintenance expense at the PJM coal facilities associated with increased generation in 202123 
Increase driven by higher maintenance resulting from the impacts of Winter Storm Uri
Decrease driven by lower retail operations costs(29)
Decrease in lease expense primarily driven by the buyout of the Midwest Generation lease in 2020(16)
Decrease due to the sale of fossil generating assets to Generation Bridge in December 2021(11)
Decrease due to prior year suspended plant project and prior year reserves for obsolete inventory(9)
Other(3)
Increase in operations and maintenance expense$241 
Other Cost of Operations
 (In millions)
Decrease due to lower in accretion expense in 2018 at Huntley as a result of a cost estimate increase in 2017$(8)
Decrease in property taxes as a result of the Transformation Plan(4)
Other(1)
 $(13)
Other Cost of operations are comprised of the following:


(In millions)TexasEastWest/Services/OtherTotal
Year Ended December 31, 2021$194 $129 $16 $339 
Year Ended December 31, 2020163 91 18 272 
Depreciation and Amortization
   Generation Corporate  
 Retail   Total
 (In millions)
Year Ended December 31, 2018$116
 $272
 $33
 $421
Year Ended December 31, 2017$110
 $454
 $32
 $596
Depreciation and amortization expense decreasedOther cost of operations increased by $175$67 million for the year ended December 31, 2018,2021 compared to the same period in 2017, primarily2020, due to impairmentsthe following:
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$83 
Decrease primarily due to ARO expense in 2020 at Jewett Mine and Joliet as a result of regulatory requirements(15)
Other(1)
Increase in other cost of operations$67 

Depreciation and Amortization
Depreciation and amortization expenses are comprised of $1,534 million in 2017the following:
(In millions)TexasEastWest/Services/OtherCorporateTotal
Year Ended December 31, 2021$331 $338 $88 $28 $785 
Year Ended December 31, 2020227 13836 34 435 
Depreciation and the deconsolidation of Ivanpah and Agua Caliente in 2018.
Impairment Losses
For the year ended December 31, 2018, the Company recorded impairment losses of $99 million related to various facilities as further described in Item 15 Note 9, Asset Impairments, to the Consolidated Financial Statements.
In 2017, the Company recorded impairment losses of $1,534 million related to various facilities, as well as goodwill for its Texas reporting units, as further described in Item 15 �� Note 9, Asset Impairments and Note 10, Goodwill and Other Intangibles, to the Consolidated Financial Statements.
Selling, General and Administrative Expenses

Retail
Generation
Corporate
Total

(In millions)
Year Ended December 31, 2018$538

$212

$49

$799
Year Ended December 31, 2017$452

$215

$169

$836
Selling, general and administrative expenses decreasedamortization expense increased by $37$350 million for the year ended December 31, 20182021 compared to the same period in 2017.2020, primarily due to amortization of acquired intangibles in connection with the acquisition of Direct Energy in January 2021.
Impairment Losses
 (In millions)
Decrease in general and administrative expense from cost initiatives for the Transformation Plan(a)
$(164)
Prior year fees associated with advisors engaged to assist the Company in its strategic review in 2017(22)
Increase in selling and marketing expenses associated with costs incurred for margin enhancement initiatives51
Increase in commission expense associated with selling initiatives32
Increase in costs due to the XOOM acquisition32
Increase in bad debt expense primarily from increased usage due to weather18
Increase due to additional litigation in 201810
Other6
 $(37)
(a) Approximately $98 million of additional cost savings were achieved inDuring the year ended December 31, 2017,2021, the Company recorded impairment losses of $544 million, of which $306 million was recorded in the second quarter related to the decline in capacity prices and the planned retirement of a significant portion of the PJM coal fleet, $213 million in the fourth quarter as compareda result of changes in the long-term outlook of the Joliet facility prompted by market conditions and an assessment of various alternatives for the long-term operational landscape of the facility including the impact of the CEJA in Illinois, and $25 million related to various other power plants. During the year ended December 31, 2016, as2020, the savings became permanent through the Transformation Plan

Reorganization Costs
Reorganization costs,Company recorded impairment losses of $75 million primarily related to severancethe Cottonwood facility and contract modifications,the Home Solar business. Refer to Item 15 — Note 11, Asset Impairments, to the Consolidated Financial Statements for further discussion.
56

Selling, General and Administrative Costs
Selling, general and administrative costs are comprised of the following:
(In millions)TexasEastWest/Services/OtherCorporateTotal
Year Ended December 31, 2021$574 $472 $198 $49 $1,293 
Year Ended December 31, 2020467 260 56 27 810 
Selling, general and administrative costs increased by $46$483 million for the year ended December 31, 2018, as2021 compared to the same period in 2017 as2020, due to the Company continued withfollowing:
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$460 
Increase due to Winter Storm Uri, including charitable giving, legal and other costs of $20 million and ERCOT default charges of $9 million29 
Increase due to higher consulting, service and insurance costs26 
Decrease due to lower employee costs(23)
Decrease due to the favorable resolution of a legal matter(15)
Other
Increase in selling, general and administrative costs$483 
Provision for Credit Losses
Provision for credit losses are comprised of the Transformation Plan announcedfollowing:
(In millions)TexasEastWest/Services/OtherTotal
Year Ended December 31, 2021$678 $$12 $698 
Year Ended December 31, 202094 14 — 108 
Provision for credit losses increased by $590 million for the year ended December 31, 2021, compared to the same period in 2017.2020, due to the following:
Other Income - Affiliate
(In millions)
Increase due to Winter Storm Uri, including:
Increase of $403 million related to bilateral financial hedging risk
Increase of $126 million related to counterparty credit risk
Increase of $67 million related to ERCOT default shortfall payments
$596 
Decrease due to improved collections in the legacy brands, partially offset by the acquisition and integration of Direct Energy in January 2021(6)
Increase in provision for credit losses$590 
Other income - affiliate representsAcquisition-Related Transaction and Integration Costs
Acquisition-related transaction and integration costs increased by $70 million when compared to the same period in 2020. Acquisition-related transaction costs increased by $8 million, primarily related to the Direct Energy acquisition. Integration costs increased by $62 million, primarily related to employee costs, software costs and consulting services fees charged to GenOn for shared services under the Services Agreement through June 14, 2017, the date of deconsolidation of $87 million.Direct Energy acquisition.
Gain on Sale of Assets
Gain on sale of assets for the year ended December 31, 2018, consists primarily of the gain on the sale of BETM and Canal 3, while theThe gain on sale of assets for the year ended December 31, 2017, represents a gain on the sale of land.
Impairment Losses on Investments
For the year ended December 31, 2018, the Company recorded other-than-temporary impairment losses of $15 million, compared to $79 million in other-than-temporary impairment losses recorded in the same period in 2017, as further described in Item 15 Note 9, Asset Impairments,to the Consolidated Financial Statements.
Loss on Debt Extinguishment
A loss on debt extinguishment of $44$247 million was recorded for the year ended December 31, 2018, primarily driven by2021 includes a $210 million gain on the redemptionsale of Senior Notes,4,850 MW of fossil generating assets in December 2021, a $20 million gain on the sale of a deactivated site in November 2021, and a $17 million due 2022 at a price above par value.
A loss on debt extinguishment of $49 million was recorded for the year ended December 31, 2017, driven by the repurchase of Senior Notes at a price above par value and the write-off of the unamortized debt issuance costs related to the replacementsale of Agua Caliente in February 2021. The gain on the 2018 Term Loan Facility with the new 2023 Term Loan Facility.

Income Tax Expense
For the year ended December 31, 2018, NRG recorded income tax expensesale of $7 million on pre-tax incomeassets of $467 million. For the same period in 2017, NRG recorded income tax benefit of $44 million on a pre-tax loss of $1,389 million. The effective tax rate was 1.5% and 3.2% for the years ended December 31, 2018 and 2017, respectively.
For the year ended December 31, 2018, NRG's overall effective tax rate was different than the federal statutory tax rate of 21% primarily due to a tax benefit for the change in valuation allowance, the generation of PTCs from various wind facilities, and establishment of the previously sequestered ATM credit receivable, partially offset by current state tax expense.
 Year Ended December 31,
 2018 2017
 
(In millions
except as otherwise stated)
Income/(Loss) from continuing operations before income taxes$467
 $(1,389)
Tax at federal statutory tax rate98
 (486)
State taxes18
 19
Foreign operations
 2
Tax Act - corporate income tax rate change
 665
Valuation allowance due to corporate income tax rate change
 (660)
Valuation allowance - current period activities(106) 455
Impact of non-taxable entity earnings
 (5)
Book goodwill impairment
 30
Permanent differences7
 
Production tax credits(7) (8)
Recognition of uncertain tax benefits1
 (5)
Alternative minimum tax ("AMT") refundable credit(4) (64)
Other
 13
Income tax expense/(benefit)$7

$(44)
Effective income tax rate1.5% 3.2%
The effective income tax rate may vary from period to period depending on, among other factors, the geographic and business mix of earnings and losses and changes in valuation allowances in accordance with ASC 740, Income Taxes, or ASC 740. These factors and others, including the Company's history of pre-tax earnings and losses, are taken into account in assessing the ability to realize deferred tax assets.
Income/(Loss) from Discontinued Operations, Net of Income Tax
  Year Ended December 31,
(In millions) 2018 2017 Change
South Central $66
 87
 $(21)
Yield Renewables Platform & Carlsbad (292) (290) (2)
Genon 34
 (789) 823
Loss from discontinued operations, net of tax $(192) $(992) $800
For the year ended December 31, 2018, NRG recorded a loss from discontinued operations, net of income tax of $192 million, a decrease of $800 million in losses from discontinued operations, net of income tax for the same period in 2017, as further described in Item 15 Note 3 Acquisitions, Discontinued Operations and Dispositions .

Net loss attributable to noncontrolling interests and redeemable noncontrolling interests
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests was $0$3 million for the year ended December 31, 2018, compared2020 was related to $184 million forthe sale of land and investments in January 2020, partially offset by the disposition of the Home Solar business.
Impairment Losses on Investments
During the year ended December 31, 2017. For the years ended December 31, 2018, and 2017, the net losses attributable to noncontrolling interests primarily reflect losses allocated to tax equity investors using the hypothetical liquidation at book value, or HLBV, method, offset in whole and in part by NRG Yield, Inc.'s share of income for the periods, respectively. As a result of the disposition of NRG Yield Inc. and its Renewables Platform, the Company did not have material actuals in 2018 nor does it anticipate material NCI in the future.


Consolidated Results of Operations for the years ended December 31, 2017 and 2016
The following table provides selected financial information for the Company:
 Year Ended December 31,  
(In millions except otherwise noted)2017 2016 Change
Operating Revenues     
Energy revenue (a)
$1,636
 $2,269
 $(633)
Capacity revenue (a)
612
 637
 (25)
Retail revenue6,378
 6,368
 10
Mark-to-market for economic hedging activities252
 (636) 888
Contract amortization(1) (1) 
Other revenues (b)
197
 278
 (81)
Total operating revenues9,074
 8,915
 159
Operating Costs and Expenses     
Cost of sales (a)
5,432
 5,562
 130
Mark-to-market for economic hedging activities46
 (508) (554)
Contract and emissions credit amortization (c)
34
 40
 6
Operations and maintenance1,097
 1,325
 228
Other cost of operations277
 257
 (20)
Total cost of operations6,886
 6,676
 (210)
Depreciation and amortization596
 756
 160
Impairment losses1,534
 483
 (1,051)
Selling, general and administrative836
 1,032
 196
Reorganization costs44
 
 (44)
Development costs22
 48
 26
Total operating costs and expenses9,918
 8,995
 (923)
Other income - affiliate87
 193
 (106)
Gain/(loss) on sale of assets16
 (80) 96
Operating (Loss)/Income(741) 33
 (774)
Other Income/(Expense)     
Equity in losses of unconsolidated affiliates(14) (18) 4
Impairment losses on investments(79) (268) 189
Other income, net51
 47
 4
Loss on debt extinguishment(49) (142) 93
Interest expense(557) (583) 26
Total other expense(648) (964) 316
Loss from Continuing Operations Before Income Taxes(1,389) (931) (458)
Income tax (benefit)/expense(44) 25
 69
Net Loss from Continuing Operations(1,345) (956) (389)
(Loss)/income from discontinued operations, net of tax(992) 65
 (1,057)
Net Loss(2,337) (891) (1,446)
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests(184) (117) (67)
Net Loss Attributable to NRG Energy, Inc. $(2,153) $(774) $(1,379)
Business Metrics     
Average natural gas price — Henry Hub ($/MMBtu)$3.11
 $2.46
 26%
(a)Includes realized gains and losses from financially settled transactions
(b)Includes unrealized trading gains and losses
(c)
Includes amortization of SO2 and NOx credits and excludes amortization of RGGI


Gross Margin
The Company calculates gross margin in order to evaluate operating performance as operating revenues less cost of sales, which includes cost of fuel, other costs of sales, contract and emission credit amortization and mark-to-market for economic hedging activities.
Economic Gross Margin
In addition to gross margin, the Company evaluates its operating performance using the measure of economic gross margin, which is not a GAAP measure and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report. Economic gross margin should be viewed as a supplement to and not a substitute for the Company's presentation of gross margin, which is the most directly comparable GAAP measure. Economic gross margin is not intended to represent gross margin. The Company believes that economic gross margin is useful to investors as it is a key operational measure reviewed by the Company's chief operating decision maker. Economic gross margin is defined as the sum of energy revenue, capacity revenue and other revenue, less cost of fuels and other cost of sales.
Economic gross margin does not include mark-to-market gains or losses on economic hedging activities, contract amortization, emission credit amortization, or other operating costs.
The tables below present the composition and reconciliation of gross margin and economic gross margin which reflects the Company's current view of reporting segments for the years ended December 31, 2017 and 2016:
 Year Ended December 31, 2017
   Generation    
(In millions except otherwise noted)Retail Texas 
East/West/Other(a)
 Subtotal Corporate/Eliminations Total
Energy revenue$
 $1,427
 $1,298
 $2,725
 $(1,089) $1,636
Capacity revenue
 22
 596
 618
 (6) 612
Retail revenue6,374
 
 
 
 4
 6,378
Mark-to-market for economic hedging activities(4) 94
 (57) 37
 219
 252
Contract amortization(1) 
 
 
 
 (1)
Other revenue
 35
 200
 235
 (38) 197
Operating revenue6,369
 1,578
 2,037
 3,615
 (910) 9,074
Cost of fuel(13) (732) (542) (1,274) 1
 (1,286)
Other costs of sales(b) 
(4,759) (137) (370) (507) 1,120
 (4,146)
Mark-to-market for economic hedging activities181
 (21) 13
 (8) (219) (46)
Contract and emission credit amortization
 (30) (4) (34) 
 (34)
Gross margin$1,778
 $658
 $1,134
 $1,792
 $(8) $3,562
Less: Mark-to-market for economic hedging activities, net177
 73
 (44) 29
 
 206
Less: Contract and emission credit amortization, net(1) (30) (4) (34) 
 (35)
Economic gross margin$1,602
 $615
 $1,182
 $1,797
 $(8) $3,391
Business Metrics           
MWh sold (thousands)  42,662
 27,923
      
MWh generated (thousands)  38,694
 21,338
      
(a) Includes International, Renewables, and Generation eliminations
(b) Includes purchased energy, capacity and emissions credits

 Year Ended December 31, 2016
   Generation    
(In millions except otherwise noted)Retail Texas 
East/West/Other(a)
 Subtotal Corporate/Eliminations Total
Energy revenue$
 $1,705
 $1,538
 $3,243
 $(974) $2,269
Capacity revenue
 18
 624
 642
 (5) 637
Retail revenue6,332
 
 
 
 36
 6,368
Mark-to-market for economic hedging activities(1) (543) (22) (565) (70) (636)
Contract amortization(1) 
 
 
 
 (1)
Other revenue
 48
 265
 313
 (35) 278
Operating revenue6,330
 1,228
 2,405
 3,633
 (1,048) 8,915
Cost of fuel(8) (704) (566) (1,270) 
 (1,278)
Other costs of sales(b) 
(4,675) (147) (463) (610) 1,001
 (4,284)
Mark-to-market for economic hedging activities365
 67
 6
 73
 70
 508
Contract and emission credit amortization(6) (29) (5) (34) 
 (40)
Gross margin$2,006
 $415
 $1,377
 $1,792
 $23
 $3,821
Less: Mark-to-market for economic hedging activities, net364
 (476) (16) (492) 
 (128)
Less: Contract and emission credit amortization, net(7) (29) (5) (34) 
 (41)
Economic gross margin$1,649
 $920
 $1,398
 $2,318
 $23
 $3,990
Business Metrics           
MWh sold (thousands)  42,108
 32,625
      
MWh generated (thousands)  37,676
 23,748
      
(a) Includes International, Renewables, and Generation eliminations
(b) Includes purchased energy, capacity and emissions credits


The table below represents the weather metrics for 2017 and 2016:
 Years ended December 31,Quarter ended December 31, Quarter ended September 30, Quarter ended June 30, Quarter ended March 31,
Weather MetricsTexas East/West Texas East/West Texas East/West Texas East/West Texas East/West
2017                   
CDDs(a)
3,068
 1,155
 311
 84
 1,568
 770
 966
 281
 223
 20
HDDs(a)
1,270
 3,198
 665
 1,157
 1
 33
 32
 380
 572
 1,628
2016                   
CDDs3,030
 1,169
 382
 71
 1,675
 806
 892
 273
 82
 19
HDDs1,422
 3,190
 498
 1,145
 
 23
 47
 410
 878
 1,612
10 year average                   
CDDs2,897
 1,043
 266
 67
 1,650
 705
 989
 254
 88
 17
HDDs1,928
 3,504
 691
 1,227
 5
 40
 64
 438
 1,025
 1,799
(a) National Oceanic and Atmospheric Administration-Climate Prediction Center - A Cooling Degree Day, or CDD, represents the number of degrees that the mean temperature for a particular day is above 65 degrees Fahrenheit in each region. A Heating Degree Day, or HDD, represents the number of degrees that the mean temperature for a particular day is below 65 degrees Fahrenheit in each region. The CDDs/HDDs for a period of time are calculated by adding the CDDs/HDDs for each day during the period



Retail gross margin and economic gross margin
The following is a discussion of gross margin and economic gross margin for Retail.
 Years ended December 31,
(In millions except otherwise noted)2017 2016
Retail revenue$6,104
 $6,096
Supply management revenue187
 154
Capacity revenues83
 82
Customer mark-to-market(4) (1)
Contract amortization(1) (1)
Operating revenue (a)
6,369
 6,330
Cost of sales (b)
(4,772) (4,683)
Mark-to-market for economic hedging activities181
 365
  Contract amortization
 (6)
Gross margin$1,778
 $2,006
Less: Mark-to-market for economic hedging activities, net177
 364
Less: Contract and emission credit amortization(1) (7)
Economic gross margin$1,602
 $1,649
Business Metrics   
Mass electricity sales volume (GWh) - Texas36,169
 35,102
Mass electricity sales volume (GWh) - All other regions6,221
 6,764
C&I electricity sales volume (GWh) All regions20,400
 18,906
 Natural gas sales volumes (MDth)3,212
 2,166
Average Retail Mass customer count (in thousands)2,862
 2,778
Ending Retail Mass customer count (in thousands)2,876
 2,818
(a)Includes intercompany sales of $5 million and $4 million in 2017 and 2016, respectively, representing sales from Retail to the Texas region
(b)Includes intercompany purchases of $1,090 million and $993 million in 2017 and 2016, respectively
Retail gross margin decreased $227 million and retail economic gross margin decreased $47 million for the year ended December 31, 2017, compared to the same period in 2016, due to:
 (In millions)
Lower gross margin due to lower rates to customers driven by customer product, term and mix of $103 million or approximately $1.60 per MWh, partially offset by lower supply cost of $28 million or approximately $0.50 per MWh driven by a decrease in supply costs$(75)
Lower gross margin related to the impact of Hurricane Harvey in 2017, driven by a reduction in load of 200,000 MWh resulting in an impact of $9 million and the unfavorable impact of selling back excess supply along with $7 million of customer relief(16)
Lower gross margin due to milder weather conditions in 2017 as compared to 2016 resulting in a reduction in load of 350,000 MWh(11)
Higher gross margin driven by higher average customer counts of 85,000 along with higher average usage due to customer mix55
Decrease in economic gross margin$(47)
Decrease in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges(186)
Increase in contract and emission credit amortization6
Decrease in gross margin$(227)


Generation gross margin and economic gross margin
Generation gross margin was flat and generation economic gross margin decreased $521 million, both of which include intercompany sales, during the year ended December 31, 2017, compared to the same period in 2016.

The tables below describe the change in generation gross margin and generation economic gross margin:

Texas Region
 (In millions)
Lower gross margin due to a 14% decrease in average realized prices due to lower hedged power prices$(352)
Lower gross margin due to lower gas generation driven by the current mothball status of Gregory in Texas(17)
Higher gross margin due to a 17% increase in coal generation driven by the timing of planned and unplanned outages55
Higher gross margin due to a decrease in tolling prices in 2017 offset by the cancellation of the Greens Bayou RMR agreement in 20175
Other4
Decrease in economic gross margin$(305)
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges549
Decrease in contract and emission credit amortization(1)
Increase in gross margin$243

East/West Region
 (In millions)
Lower gross margin from commercial optimization activities$(63)
Lower gross margin due to a decrease in generation driven by lower economic generation due to milder weather conditions and the Will County outage partially offset by increased generation at Cottonwood(43)
Lower gross margin due to a lower cost of market adjustment for fuel oil inventory(33)
Lower gross margin due to lower load contracted prices coupled with slightly lower volumes(28)
Lower gross margin by BETM due to higher gains in 2016 on over the counter strategies, offset in small part by higher gains in 2017 congestion strategies(20)
Lower gross margin due to lower capacity bi-lateral margins in 2017(11)
Lower gross margins due to the sale of certain renewable assets in 2017(10)
Lower gross margin at Agua driven by lower sales volumes resulting from weather and outages in 2017(5)
Lower gross margins due to higher business interruption proceeds from Cottonwood in 2016 offset by Ivanpah proceeds in 2017(4)
Other1
Decrease in economic gross margin$(216)
Decrease in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges(28)
Increase in contract and emission credit amortization1
Decrease in gross margin$(243)


Mark-to-market for Economic Hedging Activities
Mark-to-market for economic hedging activities includes asset-backed hedges that have not been designated as cash flow hedges. Total net mark-to-market results increased by $334 million in the year ended December 31, 2017, compared to the same period in 2016.
The breakdown of gains and losses included in operating revenues and operating costs and expenses by region are as follows:

 Year Ended December 31, 2017
   Generation   
 Retail Texas East/West/Other 
Elimination (a)
 Total
   (In millions)
Mark-to-market results in operating revenues         
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(2) $140
 $(72) $64
 $130
Net unrealized (losses)/gains on open positions related to economic hedges(2) (46) 15
 155
 122
Total mark-to-market (losses)/gains in operating revenues$(4) $94
 $(57) $219
 $252
Mark-to-market results in operating costs and expenses         
Reversal of previously recognized unrealized gains on settled positions related to economic hedges$(1) $(17) $(1) $(64) $(83)
Net unrealized gains/(losses) on open positions related to economic hedges182
 (4) 14
 (155) 37
Total mark-to-market gains/(losses) in operating costs and expenses$181
 $(21) $13
 $(219) $(46)
(a)Represents the elimination of the intercompany activity between Retail and Generation

The breakdown of gains and losses included in operating revenues and operating costs and expenses by region was as follows:
 Year Ended December 31, 2016
   Generation   
 Retail Texas East/West/Other 
Elimination (a)
 Total
   (In millions)
Mark-to-market results in operating revenues         
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(3) $(390) $(87) $33
 $(447)
Net unrealized gains/(losses) on open positions related to economic hedges2
 (153) 65
 (103) (189)
Total mark-to-market losses in operating revenues$(1) $(543) $(22) $(70) $(636)
Mark-to-market results in operating costs and expenses         
Reversal of previously recognized unrealized losses/(gains) on settled positions related to economic hedges$305
 $27
 $20
 $(33) $319
Reversal of acquired gain positions related to economic hedges.
 
 (12) 
 (12)
Net unrealized gains/(losses) on open positions related to economic hedges60
 40
 (2) 103
 201
Total mark-to-market gains in operating costs and expenses$365
 $67
 $6
 $70
 $508
(a)Represents the elimination of the intercompany activity between Retail and Generation
Mark-to-market results consist of unrealized gains and losses on contracts that are not yet settled. The settlement of these transactions is reflected in the same revenue or cost caption as the items being hedged.

The reversals of acquired gain or loss positions were valued based upon the forward prices on the acquisition date.
For the year ended December 31, 2017, the $252 million gain in operating revenues from economic hedge positions was driven primarily by the reversal of previously recognized unrealized losses on contracts that settled during the period, as well as an increase in value of open positions as a result of decreases in gas prices. The $46 million loss in operating costs and expenses from economic hedge positions was driven primarily by the reversal of previously recognized unrealized gains on contracts that settled during the period, partially offset by an increase in the value of open positions as a result of increases in ERCOT heat rate.
In accordance with ASC 815, the following table represents the results of the Company's financial and physical trading of energy commodities for the years ended December 31, 2017 and 2016. The realized and unrealized financial and physical trading results are included in operating revenues. The Company's trading activities are subject to limits within the Company's Risk Management Policy.
 Year Ended December 31,
 2017 2016
 (In millions)
Trading gains/(losses)   
Realized$43
 $71
Unrealized(11) 28
Total trading gains$32
 $99
Operations and Maintenance Expense
   Generation Corporate Eliminations  
 Retail Texas East/West/Other   Total
   (In millions)
Year Ended December 31, 2017$224
 $387
 $458
 $31
 $(3) $1,097
Year Ended December 31, 2016$247
 $434
 $605
 $43
 $(4) $1,325
Operations and maintenance expenses decreased by $228 million for the year ended December 31, 2017, compared to the same period in 2016, due to the following:
 (In millions)
Decrease in operation and maintenance expenses due to major maintenance activities and environmental control work in the East offset by higher variable operating costs$(100)
Decrease in operations and maintenance expenses due to timing of planned outages in Texas(32)
Decrease in Retail operations and maintenance expenses due to reduced headcount(22)
Decrease in operations and maintenance expenses due to the gain on sale of Jewett Mine dragline in 2017(18)
Decrease in operations and maintenance expense due to reductions at Residential Solar(16)
Decrease in operations and maintenance expenses due to gain on sale of fixed assets in the East(15)
Decrease in operation and maintenance expenses due to a reduction in headcount related to the sale of the engine services business(10)
Decrease in operations and maintenance expenses due to the sale of wind assets in 2016 and early 2017(10)
Other(5)
 $(228)
Other cost of operations
   Generation Corporate  
 Retail Texas East/West/Other  Total
   (In millions)
Year Ended December 31, 2017$99
 $81

$97
 $
 $277
Year Ended December 31, 2016$93
 $75
 $88
 $1
 $257
Other cost of operations, comprised of asset retirement expense, insurance expense and property tax expense, increased by $20 million for the year ended December 31, 2017, compared to the same period in 2016.

Depreciation and Amortization
  Generation Corporate  
 Retail   Total
 (In millions)
Year Ended December 31, 2017$110
 $454
 $32
 $596
Year Ended December 31, 2016$114
 $593
 $49
 $756
Depreciation and amortization expense decreased by $160 million for the year ended December 31, 2017, compared to the same period in 2016, primarily due to due to the Jewett Mine being fully depreciated in December 2016 as well as impairments in 2016.
Impairment Losses
In 2017,2020, the Company recorded other-than-temporary impairment losses of $1,534 million related to various facilities, as well as goodwill for its Texas reporting unit, as further described in Item 15 Note 9, Asset Impairments and Note 10, Goodwill and Other Intangibles, to the Consolidated Financial Statements.
In 2016, the Company recorded impairment losses of $483 million related to various facilities, as well as goodwill for its Texas and Home Solar reporting units, as further described in Item 15 - Note 9, Asset Impairments to the Consolidated Financial Statements.
Selling, General and Administrative Expenses
 Retail Generation Corporate Total
 (In millions)
Year Ended December 31, 2017$452
 $215
 $169
 $836
Year Ended December 31, 2016$498
 $279
 $255
 $1,032

Selling, general and administrative expenses decreased by $196 million(a) for the year ended December 31, 2017 compared to the same period in 2016, primarily due to a reduction in personnel costs and selling and marketing activities as the Company continues to focus on cost management.
(a) Approximately $98 million of additional cost savings were achieved in the year ended December 31, 2017, as compared to the year ended December 31, 2016, as the savings became permanent through the Transformation Plan
Development Costs
Development costs decreased by $26 million for the year ended December 31, 2017, compared to the same period in 2016, due to the strategic decision for a more focused development program primarily related to Renewables and the sale of EVgo in 2016.
Gain/(Loss) on Sale of Assets
Gain on sale of assets for the year ended December 31, 2017, represents a gain on the sale of land. The loss on sale of assets for the year ended December 31, 2016 is primarily due to the loss on sale of the Company's majority interest in its EVgo business to Vision Ridge Partners, which resulted in a loss on sale as described in Item 15 Note 3, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements.
Impairment Losses on Investments
For the year ended December 31, 2017, the Company recorded impairment losses of $79 million, which is primarily due to impairments on the Company's interestsinvestment in Petra Nova Parish Holdings as well as as impairments on other investments as further described in Item 15 Note 9, Asset Impairments, to the Consolidated Financial Statements.
For the year ended December 31, 2016, the Company recorded impairment losses on certain of its cost and equity method investments of $270$18 million, as further described in Item 15 Note 9, 11, Asset Impairments,to the Consolidated Financial Statements.

57

Loss on Debt Extinguishment
A loss on debt extinguishment of $49$77 million was recorded for the year ended December 31, 2017, primarily2021, driven by the repurchaseredemption of Senior Notes at a price above par valuesenior notes as further discussed in Item 15 — Note 13, Long-term Debt and the write-off of the unamortized debt issuance costs related Finance Leases, to the replacement of the 2018 Term Loan Facility with the new 2023 Term Loan Facility.
Consolidated Financial Statements. A loss on debt extinguishment of $142$9 million was recorded for the year ended December 31, 2016, primarily2020, driven by the repurchasedebt extinguished in connection with the sale of NRG senior notes at a price above par valueHome Solar and the write-offredemptions of the unamortized debt issuance costs related to the replacement of the 2018 Term Loan Facility with the new 2023 Term Loan Facility.Indian River and Dunkirk bonds.
Interest Expense
NRG's interestInterest expense decreasedincreased by $26$84 million for the year ended December 31, 2017,2021 compared to the same period in 2016,2020, primarily due to lower debt balances resultingfinancings entered into in less interest.connection with the Direct Energy acquisition.

Income Tax Expense
For the year ended December 31, 2017,2021, NRG recorded an income tax benefitexpense of $44$672 million on a pre-tax lossincome of $1,389 million.$2.9 billion. For the same period in 2016,2020, NRG recorded an income tax expense of $25$251 million on pre-tax lossincome of $931$761 million. The effective tax rate was 3.2%23.5% and (2.7)%33.0% for the years ended December 31, 20172021 and 2016,2020, respectively.
For the year ended December 31, 2017,2021, NRG's overall effective tax rate was differenthigher than the federal statutory tax rate of 35%21% primarily due to state tax expense recordedpartially offset by tax benefits from the revaluation of the existing netstate deferred tax asset and state taxes, partially offset by the change inassets, valuation allowance, establishing the AMT credit receivable and the generationsettlements of PTCs from various wind facilities. Theuncertain tax expense recorded for revaluation of the net deferred tax asset is required to reflect the reduction in the corporate income tax rate from 35% to 21% in accordance with the Tax Act.positions.
 Year Ended December 31,
(In millions, except effective income tax rate)20212020
Income from continuing operations before income taxes$2,859 $761 
Tax at federal statutory tax rate600 160 
Foreign rate differential(3)— 
State taxes111 18 
Deferred impact of state tax rate changes(10)
Changes in valuation allowance(29)24 
Permanent differences
Return to provision adjustments36 
Recognition of uncertain tax benefits(10)
Income tax expense$672 $251 
   Effective income tax rate23.5 %33.0 %
 Year Ended December 31,
 2017 2016
 
(In millions
except as otherwise stated)
Loss from continuing operations before income taxes$(1,389) $(931)
Tax at federal statutory tax rate(486) (326)
State taxes19
 
Foreign operations2
 10
Tax Act - corporate income tax rate change665
 
Valuation allowance due to corporate income tax rate change(660) 
Valuation allowance - current period activities455
 382
Impact of non-taxable entity earnings(5) 22
Book goodwill impairment30
 
Net interest accrued on uncertain tax positions
 1
Production tax credits(8) (7)
Recognition of uncertain tax benefits(5) 2
Impact of changes is in effective state
 (59)
AMT refundable credit(64) 
Other13
 
Income tax (benefit)/expense$(44) $25
Effective income tax rate3.2% (2.7)%
The effective income tax rate may vary from period to period depending on, among other factors, the geographic and business mix of earnings and losses and changes in valuation allowances in accordance with ASC 740, Income Taxes, or ASC 740. These factors and others, including the Company's history of pre-tax earnings and losses, are taken into account in assessing the ability to realize deferred tax assets.


(Loss)/Income from Discontinued Operations, Net of Income Tax
  Year Ended December 31,
(In millions) 2017 2016 Change
South Central $87
 $72
 $15
Yield Renewables Platform & Carlsbad (290) (99) (191)
Genon (789) 92
 (881)
(Loss)/income from discontinued operations, net of tax $(992) $65
 $(1,057)
For the year ended December 31, 2017, NRG recorded a loss from discontinued operations, net of income tax of $992 million, an increase of $1.1 billion in losses from discontinued operations, net of income tax for the same period in 2016, as further described in Item 15 Note 3 Acquisitions, Discontinued Operations and Dispositions.
(Loss)/Income from Discontinued Operations, Net of Income Tax
For the year ended December 31, 2017, NRG recorded loss from discontinued operations, net of income tax of $992 million, of which $359 million was related to operations of GenOn, Carlsbad, NRG Yield Inc. and its Renewables Platform, and the South Central Portfolio and $633 million was related to the loss, fees and other expenses associated with the dispositions.
For the year ended December 31, 2016, NRG recorded income from discontinued operations, net of income tax of $65 million which was related to operations of GenOn, NRG Yield Inc. and its Renewables Platform, and the South Central Portfolio.

Net loss attributable to noncontrolling interests and redeemable noncontrolling interests
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests was $184 million for the year ended December 31, 2017, compared to $117 million for the year ended December 31, 2016. For the years ended December 31, 2017 and 2016, the net losses attributable to noncontrolling interests primarily reflect losses allocated to tax equity investors using the hypothetical liquidation at book value, or HLBV method.


Liquidity and Capital Resources

Liquidity Position
As of December 31, 20182021 and 2017,2020, NRG's liquidity, excluding collateral funds deposited by counterparties, was approximately $2.0$2.7 billion and $2.8$7.0 billion, respectively, comprised of the following:
 As of December 31,
(In millions)20212020
Cash and cash equivalents:$250 $3,905 
Restricted cash - operating
Restricted cash - reserves (a)
11 
Total265 3,911 
Total availability under Revolving Credit Facility and collective collateral facilities(b)
2,421 3,129 
Total liquidity, excluding collateral funds deposited by counterparties$2,686 $7,040 
 As of December 31,
 2018 2017
 (In millions)
Cash and cash equivalents:$563
 $770
Restricted cash - operating6
 85
Restricted cash - reserves (a)
11
 194
Total580
 1,049
Total credit facility availability1,397
 1,711
Total liquidity, excluding collateral funds deposited by counterparties$1,977
 $2,760
(a)Includes reserves primarily for debt service, performance obligations and capital expenditures
(a)Includes reserves primarily for debt service, performance obligations, and capital expenditures
For the year ended (b)Total capacity of Revolving Credit Facility and collective collateral facilities was $5.9 billion and $4.0 billion as of December 31, 2018,2021 and December 31, 2020, respectively

58

As of December 31, 2021, total liquidity, excluding collateral funds deposited by counterparties, decreased by $783 million.$4.4 billion. The decrease was primarily driven by the closing of the Direct Energy acquisition and the impact of Winter Storm Uri. Changes in cash and cash equivalent balances are further discussed hereinafter under the heading Cash Flow Discussion. Cash and cash equivalents at December 31, 20182021 were predominantly held in money market funds invested in treasury securities, treasury repurchase agreements or government agency debt.
Management believes that the Company's liquidity position and cash flows from operations will be adequate to finance operating and maintenance capital expenditures, to fund dividends to NRG's common stockholders, and to fund other liquidity commitments. Management continues to regularly monitor the Company's ability to finance the needs of its operating, financing and investing activity within the dictates of prudent balance sheet management.
Credit Ratings
On December 6, 2018, Moody's upgraded the NRG corporate family rating to Ba2 and senior unsecured rating to Ba3 with positive outlook. The rating agency also affirmed the company's senior secured rating at Baa3.
On September 10, 2018, S&P upgraded itsMarch 17, 2021, following Winter Storm Uri, Standard & Poor's placed NRG's issuer credit rating to BBof BB+ on CreditWatch with negative implications. On May 12, 2021, Standard & Poor's affirmed NRG's issuer credit rating of BB+ with a stable outlook. On March 19, 2021, Moody's changed NRG's rating outlook from positive to stable. At the same time, they raised the issue-level secured and unsecured ratings to BBB and BB respectively.Moody's affirmed NRG's corporate family rating of Ba1.
The following table summarizes the Company's current credit ratings:
S&PMoody's
NRG Energy, Inc.BBBB+ StableBa2 PositiveBa1 Stable
6.25%3.75% Senior Secured Notes, due 2024BBBBB-Ba3Baa3
7.25%2.00% Senior Secured Notes, due 20262025BBBBB-Ba3Baa3
2.45% Senior Secured Notes, due 2027BBB-Baa3
6.625% Senior Notes, due 2027BBBB+Ba3Ba2
5.75% Senior Notes, due 2028BBBB+Ba3Ba2
Term Loan3.375% Senior Notes, due 2029BB+Ba2
4.45% Senior Secured Notes, due 2029BBB-Baa3
5.25% Senior Notes, due 2029BB+Ba2
3.625% Senior Notes, due 2031BB+Ba2
3.875% Senior Notes, due 2032BB+Ba2
Revolving Credit Facility, due 20232024BBB-Baa3




Sources of Liquidity
The principal sources of liquidity for NRG's operating and capital expenditures are expected to be derived from cash on hand, cash flows from operations cash proceeds from future sales of assets and financing arrangements. As described in Item 15 — Note 1113, Long-term Debt and CapitalFinance Leases,, to the Consolidated Financial Statements, the Company's financing arrangements consist mainly of the Senior Credit Facility, the Senior Notes, and project-related financings.
Asset Sale Proceeds
The table below represents the approximate purchase price received from sale transactions and related financings completed by the Company during the year ended December 31, 2018.
Sales Cash Proceeds (in millions)
NRG Yield, Inc and Renewables Platform $1,348
Buckthorn Solar (a)
 42
UPMC Thermal Project (a)
 84
BETM 70
Canal 3(b)
 167
Other Sales 12
Completed sales transactions as of December 31, 2018 $1,723
(a) Sale of assets to NRG Yield, Inc., prior to discontinued operations
(b) In addition to cash proceeds from sale, amount includes $151 million related to a financing arrangement prior to the sale

The table below represents the cash proceeds received from sales transactions, excluding working capital or other adjustments, completed by the Company by February 28, 2019.
Expected Sales Close Date Cash Proceeds (in millions)
South Central Portfolio February 4, 2019 $1,000
Carlsbad February 27, 2019 387
Cash proceeds from sales transactions in 2019   $1,387
2048 Convertible Senior Notes, Issuance
On May 24, 2018, the Company issued $575 million in aggregate principal amount at par of 2.75% convertible senior notes due 2048.    
Senior Secured First Lien StructureNotes, Revolving Credit Facility, and tax-exempt bonds.
NRG has granted first liens to certain counterparties on a substantial portion of the Company's assets, excluding assets acquired in the EME (including Midwest Generation) acquisitions and NRG's assets that have project-level financing. NRG uses the first lien structure to reduce the amount of cash collateral and letters of credit that it would otherwise be required to post from time to time to support its obligations under out-of-the-money hedge agreements for forward sales of power or gas used as a proxy for power. To the extent that the underlying hedge positions for a counterparty are out-of-the-money to NRG, the counterparty would have claim under the first lien program. The first lien program limits the volume that can be hedged, not the value of underlying out-of-the-money positions. The first lien program does not require NRG to post collateral above any threshold amount of exposure. Within the first lien structure, the Company can hedge up to 80% of its coal and nuclear capacity and 10% of its other assets with these counterparties for the first 60 months and then declining thereafter. Net exposure to a counterparty on all trades must be positively correlated to the price of the relevant commodity for the first lien to be available to that counterparty. The first lien structure is not subject to unwind or termination upon a ratings downgrade of a counterparty and has no stated maturity date.
The Company's first lien counterparties may have a claim on its assets to the extent market prices exceed the hedged prices. As of December 31, 2018, all hedges under the first liens were out-of-the-money on a counterparty aggregate basis.

The following table summarizes the amount of MW hedged against the Company's coal and nuclear assets and as a percentage relative to the Company's coal and nuclear capacity under the first lien structure as of December 31, 2018:
Equivalent Net Sales Secured by First Lien Structure (a)
2019 2020 2021 2022
In MW596
 831
 712
 743
As a percentage of total net coal and nuclear capacity (b)
13% 18% 16% 16%
(a)Equivalent Net Sales include natural gas swaps converted using a weighted average heat rate by region
(b)Net coal and nuclear capacity represents 80% of the Company's total coal and nuclear assets eligible under the first lien, which excludes coal assets acquired in the Midwest Generation acquisition and NRG's assets that have project-level financing

Uses of Liquidity
The Company's requirements for liquidity and capital resources, other than for operating its facilities, can generally be categorized by the following: (i) commercialmarket operations activities; (ii) debt service obligations, as described more fully in Item 15 — Note 11, 13, Long-term Debt and CapitalFinance Leases, to the Consolidated Financial Statements; (iii) capital expenditures, including maintenance, repowering, development, and environmental; and (iv) allocations in connection with acquisition opportunities, debt repayments, return of capitalshare repurchases and dividend payments to stockholders, as described in Item 15 — Note 14, 16, Capital Structure, to the Consolidated Financial Statements.
CommercialDirect Energy Acquisition
On January 5, 2021, the Company acquired Direct Energy, which had been a North American subsidiary of Centrica. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces.
The Company paid an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment of $77 million. The Company funded the purchase price using a combination of $715 million of cash on hand, $166 million from a draw on its Revolving Credit Facility (of which $107 million was used to fund acquisition costs and financing fees that are not included in the aggregate purchase price above) as well as approximately $2.9 billion in secured and unsecured corporate debt issued in December 2020. The final purchase price adjustment resulted in additional payment of $22 million, which was paid to Centrica in December 2021.
59

Collateral Facility Increases
The following table presents increases to the Company's liquidity and collateral facilities in connection with the Direct Energy acquisition:
(In millions)
Available on Acquisition Closing Date
Revolving Credit Facility commitment increase$802 
Revolving Credit Facility new tranche273 
Facility agreement in connection with the sale of pre-capitalized trust securities874 
Available as of December 31, 2020
Credit default swap facility150 
Revolving accounts receivable financing facility750 
Repurchase facility75 
Bilateral letter of credit facilities475 
Total Increases to Liquidity and Collateral Facilities$3,399 
Planned Debt Reduction
In light of the impact of Winter Storm Uri, the Company's deleveraging program will extend to 2023. The Company remains committed to maintaining a strong balance sheet and continues to work to achieve investment grade credit metrics.
Issuance of 2032 Senior Notes
On August 23, 2021, the Company issued $1.1 billion of aggregate principal amount at par of 3.875% senior notes due 2032 (the "2032 Senior Notes"). The 2032 Senior Notes are senior unsecured obligations of NRG and are guaranteed by certain of its subsidiaries. The 2032 Senior Notes were issued under NRG's Sustainability-Linked Bond Framework, which sets out certain sustainability targets, including reducing greenhouse gas emissions. Failure to meet such sustainability targets will result in a 25 basis point increase to the interest rate payable on the 2032 Senior Notes from and including August 15, 2026.
Senior Note Redemptions
During the year ended December 31, 2021, the Company redeemed $1.9 billion in aggregate principal of its Senior Notes for $1.9 billion using the proceeds of the 2032 Senior Notes and cash on hand. In connection with the redemptions, a $77 million loss on debt extinguishment was recorded.
Receivables Facility
On July 26, 2021, NRG Receivables LLC, a wholly-owned indirect subsidiary of the Company, renewed its existing accounts receivable securitized borrowings facility (the "Receivables Facility") to, among others, (i) increase the facility size to $800 million, (ii) extend the maturity date until July 26, 2022, (iii) make certain adjustments to the pool of receivables through the Receivables Facility and certain related covenants, and (iv) provide for revised language relating to interest determination based on SOFR in case of a LIBOR cessation or the occurrence of certain other trigger events. As of December 31, 2021, there were no outstanding borrowings and there were $400 million in letters of credit issued under the Receivables Facility.
Repurchase Facility
On July 26, 2021, the Company renewed its existing uncommitted repurchase facility ("Repurchase Facility") to, among other things, (i) extend the maturity date to July 26, 2022 and (ii) provide for revised language relating to interest determination based on SOFR in case of a LIBOR cessation or the occurrence of certain other trigger events. On February 9, 2022, the Company entered into amendments to its existing Repurchase Facility to, among other things, (i) increase the size of the facility from $75 million to $150 million and (ii) replace LIBOR with term SOFR as the benchmark for the pricing rate. The Repurchase Facility has no commitment fee and borrowings will be drawn at SOFR + 1.30%. As of December 31, 2021, there were no outstanding borrowings under the Repurchase Facility.
Sale of 4.8 GW of Fossil Generation Assets
On December 1, 2021, the Company closed the previously announced sale of approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. At Closing, NRG received $623 million of net proceeds, after working capital and other adjustments, including a deduction for cash flows generated of approximately $11 million per month from the beginning of the year until the closing of the transaction, in lieu of
60

cash flows generated during the year. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
Sale of Agua Caliente
On February 3, 2021, the Company closed on the sale of its 35% ownership in the Agua Caliente solar project to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including cash disposed of $7 million.
CARES Act
On March 27, 2020, the U.S. government enacted the CARES Act, which provides, among other things: (i) the option to defer payments of certain 2019 employer payroll taxes incurred after the date of enactment; and (ii) allows NOLs from tax years 2018, 2019, and 2020 to be carried back five years. The total benefit to the Company due to the CARES Act was $35 million. Of this amount, $13 million was paid to social security in 2021 and $13 million will be payable in 2022.
Pension Plan Contribution
The American Rescue Plan Act ("ARPA") was enacted on March 11, 2021 to provide economic relief related to the COVID-19 pandemic. ARPA provided pension funding relief for single employer plans, among other provisions. As a result, NRG reduced its 2021 planned cash contribution by approximately $23 million.
Pension and Other postretirement benefits minimum funding requirements
As of December 31, 2021, the Company does not have estimated minimum pension contributions required under the Pension Protection Act of 2006 for the next 5 years. As of December 31, 2021, the Company’s estimated Other postretirement benefits minimum funding requirements for the next 5 years were $33 million, of which $7 million are required to be made within the next 12 months. These amounts represent estimates based on assumptions that are subject to change. For further discussion, see Item 15 — Note 15, Benefit Plans and Other Postretirement Benefits, to the Consolidated Financial Statements.
Debt Service Obligations
Principal payments on debt and finance leases as of December 31, 2021 are due in the following periods:
(In millions)
Description20222023202420252026ThereafterTotal
 Recourse Debt:     
Senior notes, due 2027$— $— $— $— $— $375 $375 
Senior notes, due 2028— — — — — 821 821 
Senior notes, due 2029— — — — — 733 733 
Senior notes, due 2029— — — — — 500 500 
Senior notes, due 2031— — — — — 1,030 1,030 
Senior Notes, due 2032— — — — — 1,100 1,100 
Convertible Senior Notes, due 2048— — — — — 575 575 
Senior Secured First Lien Notes, due 2024— — 600 — — — 600 
Senior Secured First Lien Notes, due 2025— — — 500 — — 500 
Senior Secured First Lien Notes, due 2027— — — — — 900 900 
Senior Secured First Lien Notes, due 2029— — — — — 500 500 
Tax-exempt bonds— — — — — 466 466 
Subtotal Recourse Debt— — 600 500 — 7,000 8,100 
Finance Leases:
Finance leases— 13 
      Subtotal Finance Leases— 13 
Total Debt and Finance Leases$$$603 $502 $— $7,001 $8,113 
Interest Payments$385 $383 $363 $352 $334 $1,224 $3,041 
For further discussion, see Item 15 — Note 13, Long-term Debt and Finance Leases.
61

Market Operations
The Company's commercialmarket operations activities require a significant amount of liquidity and capital resources. These liquidity requirements are primarily driven by: (i) margin and collateral posted with counterparties; (ii) margin and collateral required to participate in physical markets and commodity exchanges; (iii) timing of disbursements and receipts (e.g. buying fuel before receiving energy revenues); and (iv) initial collateral for large structured transactions; and (v) collateral for project development.transactions. As of December 31, 2018, commercial2021, market operations had total cash collateral outstanding of $287$291 million and $793 million$3.5 billion outstanding in letters of credit to third parties primarily to support its commercial activities for both wholesale and retail transactions.market activities. As of December 31, 2018,2021, total collateral held fromfunds deposited by counterparties was $33were $845 million in cash and $108$429 million of letters of credit.
The Company has entered into long-term contractual arrangements to procure certain fuel and transportation services for the Company's generation assets. As of December 31, 2021, the Company had minimum payment obligations under such outstanding agreements of $378 million, with $122 million payable within the next 12 months. Additionally, the Company has long-term contractual commitments related to electricity and natural gas products, including power purchases, gas transportation and storage of various quantities and durations, and renewable purchased power agreements under PPAs with third-party project developers, which are accounted for as NPNS. As of December 31, 2021, the Company had minimum purchased energy commitments of $5.0 billion, with $1.6 billion payable within the next 12 months. For further discussion, see Item 15 — Note 23, Commitments and Contingencies.
Future liquidity requirements may change based on the Company's hedging activities and structures, power purchases and sales, fuel purchases, and future market conditions, including forward prices for energy and fuel and market volatility. In addition, liquidity requirements are dependent on the Company's credit ratings and general perception of its creditworthiness.
2023 Term Loan FacilityFirst Lien Structure
In accordance with the termsNRG has granted first liens to certain counterparties on a substantial portion of the Credit Agreement, on October 5, 2018, the Company initiated an asset sale offerCompany's assets, subject to purchase a portion of its Term Loan following the sale of NRG Yieldvarious exclusions including NRG's assets that have project-level financing and the Renewables Platform. The offer expired on November 5, 2018, and $260 millionassets of Term Loan holders acceptedcertain non-guarantor subsidiaries, to reduce the offer. As a result, the Company prepaid $155 million of Term Loans as part of its de-leveraging plan, as well as established an incremental first lien secured loan term facility under the Senior Credit Facility in the aggregate principal amount of $105 million on the same termscash collateral and conditions to stay within its debt reduction target.
In accordance with the terms of the credit agreement, upon the consummation of the sales of the South Central Portfolio and Carlsbad, the Company will initiate asset sale offers to purchase a portion of its Term Loan. The Company has one year from the date of each sale to initiate the offer.
Senior Note Repurchases in 2018
During the year ended December 31, 2018, the Company redeemed $1.1 billion in aggregate principal of its Senior Notes for $1.1 billion, which included accrued interest of $14 million. In connection with the redemptions, a $38 million loss on debt extinguishment was recorded in 2018, which included the write-off of previously deferred financing costs of $7 million.

 Principal Repurchased 
Cash Paid (a)                         
 Average Early Redemption Percentage
In millions, except percentages     
5.750% senior notes due 2028$29
 $30
 99.24%
6.250% senior notes due 202214
 15
 103.25%
Total at June 30, 2018$43
 $45
  
6.250% senior notes due 2022493
 512
 103.13%
5.750% senior notes due 202820
 20
 99.13%
6.625% senior notes due 202720
 21
 103.06%
Total at September 30, 2018$576
 $598
  
6.250% senior notes due 2022485
 508
 103.13%
Total at December 31, 2018$1,061
 $1,106
  
(a) Includes accrued interest of $14 million

Senior Note Redemptions in 2017
During the year ended December 31, 2017, the Company redeemed $1.5 billion in aggregate principal of its Senior Notes for $1.5 billion, which included accrued interest of $29 million. In connection with the redemptions, a $49 million loss on debt extinguishment was recorded, which included the write-off of previously deferred financing costs of $7 million.
 Principal Repurchased 
Cash Paid (a)                         
 Average Early Redemption Percentage
Amount in millions, except percentages     
7.625% senior notes due 2018 
$398
 $411
 101.42%
7.875% senior notes due 2021206
 218
 102.63%
6.625% senior notes due 2023869
 915
 103.57%
Total$1,473
 $1,544
  
(a) Includes accrued interest of $29 million





Debt Service Obligations
Principal payments on debt and capital leases as of December 31, 2018 are due in the following periods:
Description2019 2020 2021 2022 2023 Thereafter Total
 (In millions)
 Recourse Debt:             
Senior notes, due 2024$
 $
 $
 $
 $
 $733
 $733
Senior notes, due 2026
 
 
 
 
 1,000
 1,000
Senior notes, due 2027
 
 
 
 
 1,230
 1,230
Senior notes, due 2028
 
 
 
 
 821
 821
Convertible Senior Notes, due 2048
 
 
 
 
 575
 575
Term loan facility, due 202317
 18
 17
 17
 1,629
 
 1,698
Tax-exempt bonds
 
 
 
 
 466
 466
Subtotal Recourse Debt17
 18
 17
 17
 1,629
 4,825
 6,523
 Non-Recourse Debt:             
Agua Caliente Borrower 1, due 20383
 3
 3
 3
 2
 72
 86
Midwest Generation, due 201948
 
 
 
 
 
 48
Other6
 5
 6
 5
 4
 8
 34
Subtotal Non-Recourse Debt57
 8

9

8

6

80
 168
Subtotal long-term debt74
 26

26

25

1,635

4,905
 6,691
Capital Leases:            
Capital leases
 
 1
 
 
 
 1
      Subtotal Capital Leases
 
 1
 
 
 
 1
Total Debt and Capital Leases$74
 $26
 $27
 $25
 $1,635
 $4,905
 $6,692
In addition to the debt and capital leases shown in the above table, NRG had issued $1.0 billion of letters of credit that it would otherwise be required to post from time to time to support its obligations under out-of-the-money hedge agreements for forward sales of power or MWh equivalents. The first lien program does not limit the volume that can be hedged or the value of underlying out-of-the-money positions. The first lien program also does not require NRG to post collateral above any threshold amount of exposure. The first lien structure is not subject to unwind or termination upon a ratings downgrade of a counterparty and has no stated maturity date.
The Company's first lien counterparties may have a claim on its assets to the extent market prices exceed the hedged prices. As of December 31, 2021, all hedges under the first liens were out-of-the-money on a counterparty aggregate basis.
The following table summarizes the amount of MW hedged against the Company's $2.4 billion Revolving Credit Facilitycoal and nuclear assets and as a percentage relative to the Company's coal and nuclear capacity under the first lien structure as of December 31, 2018.2021:

Equivalent Net Sales Secured by First Lien Structure (a)
20222023
In MW653738
As a percentage of total net coal and nuclear capacity (b)
15%17%
(a)Equivalent Net Sales include natural gas swaps converted using a weighted average heat rate by region
(b)Net coal and nuclear capacity represents 80% of the Company's total coal and nuclear assets eligible under the first lien, which excludes coal assets acquired in the Midwest Generation acquisition
Capital Expenditures
The following table and descriptions summarizesummarizes the Company's capital expenditures for maintenance, environmental, and growth investments for the year ended December 31, 2018,2021:
(In millions)MaintenanceEnvironmental
Growth Investments(a)
Total
Texas$(127)$(1)$(25)$(153)
East(23)(1)(26)(50)
West/Services/Other(21)— — (21)
Corporate(4)— (41)(45)
Total cash capital expenditures for 2021(175)(2)(92)(269)
 Investments— — (47)(47)
Total capital expenditures and investments$(175)$(2)$(139)$(316)
(a)Includes other investments, acquisitions, digital NRG and the estimated capital expenditure and growthintegration projects
62

Growth investments forecastin East for2019
 Maintenance Environmental Growth Investments Total
 (In millions)
Retail$19
 $
 $71
 $90
Generation      

Texas77
 
 
 77
East/West/Other (a)
54
 1
 135
 190
Corporate9
 
 22
 31
Total cash capital expenditures for the year ended
December 31, 2018
159
 1
 228
 388
  Funding from debt financing, net of fees
 
 (118) (118)
  XOOM acquisition and integration
 
 208
 208
  Other investments(b)

 
 176
 176
Total capital expenditures and investments, net of financings$159
 $1
 $494
 $654
        
Estimated capital expenditures for 2019$155
 $3
 $65
 $223
(a) Includes International, Renewables and Cottonwood
(b) Other investments include restricted cash activity and acquisitions

Growth Investments capital expenditures — For the year ended December 31, 2018,2021 include the Astoria generating facility, for which the Company has proposed to replace existing units with a single, new state-of-the-art Simple Cycle Combustion Turbine having a total generating capacity of 437 MW. On October 27, 2021, the NYSDEC Staff denied the Company's growth investment capitalapplication for an air permit. On November 26, 2021, Astoria Gas Turbine Power LLC filed a Request for Adjudicatory Hearing on the NYSDEC's denial. To date, the Company has spent approximately $42 million on the Astoria project. Additionally, included in Investments are expenditures included $134 million for repowering Canal 3,Encina site improvements classified as ARO payments. Demolition of Encina is underway and $94 million foris expected to be completed in the Company's other growth projects.first half of 2022. The Company expects to begin marketing the site in 2022.


Environmental Share Repurchases
In December 2021, the Company's board of directors authorized the Company to repurchase $1.0 billion of its common stock. Through December 31, 2021, the Company completed $53 million of share repurchases at an average price of $40.22 per share, including $9 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuances. Through February 24, 2022, an additional $82 million of share repurchases were executed at an average price of $40.26 per share, including $6 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuances. See Item 15 - Note 16, Capital Expenditures EstimateStructure, to the Consolidated Financial Statements for additional discussion.
Renewable Power Purchase Agreements
The Company's strategy is to procure mid to long-term generation through power purchase agreements. As of December 31, 2021, NRG estimateshas entered into PPAs totaling approximately 2.6 GW with third-party project developers and other counterparties. The average tenor of these agreements is twelve years. The Company expects to continue evaluating and executing similar agreements that environmental capital expendituressupport the needs of the business. The total GW entered into through PPAs may be impacted by contract terminations when they occur.
Dividend Increase
In the first quarter of 2021, NRG increased the annual dividend to $1.30 from 2019 through 2023 required$1.20 per share. In 2022, NRG further increased the annual dividend to comply with environmental laws will be approximately $35 million. These costs are primarily associated with$1.40 per share, representing an 8% increase from 2021. The Company expects to target an annual dividend growth rate of 7-9% per share in subsequent years.
COVID-19
While the pandemic presented risks, as further described in Part II, Item 1A — Risk Factors of this Form 10-K, to the Company’s business, there was not a material adverse impact on the Company’s results of operations for the years ended December 31, 2021 and 2020.
48

Consolidated Results of Operations for the years ended December 31, 2021 and 2020
The following table provides selected financial information for the Company:
 Year Ended December 31,
(In millions, except otherwise noted)20212020Change
Operating Revenues   
Retail revenue$23,561 $7,460 $16,101 
Energy revenue(a)
1,215 539 676 
Capacity revenue(a)
775 680 95 
Mark-to-market for economic hedging activities(164)95 (259)
Contract amortization(30)— (30)
Other revenues(a)(b)
1,632 319 1,313 
Total operating revenues26,989 9,093 17,896 
Operating Costs and Expenses   
Cost of fuel1,844 851 (993)
Purchased energy and other cost of sales(c)
19,766 4,069 (15,697)
Mark-to-market for economic hedging activities(2,880)214 3,094 
Contract and emissions credit amortization(c)
43 (38)
Operations and maintenance1,370 1,129 (241)
Other cost of operations339 272 (67)
Cost of operations (excluding depreciation and amortization shown below)20,482 6,540 (13,942)
Depreciation and amortization785 435 (350)
Impairment losses544 75 (469)
Selling, general and administrative costs1,293 810 (483)
Provision for credit losses698 108 (590)
Acquisition-related transaction and integration costs93 23 (70)
Total operating costs and expenses23,895 7,991 (15,904)
Gain on sale of assets247 244 
Operating Income3,341 1,105 2,236 
Other Income/(Expense)   
Equity in earnings of unconsolidated affiliates17 17 — 
Impairment losses on investments— (18)18 
Other income, net63 67 (4)
Loss on debt extinguishment, net(77)(9)(68)
Interest expense(485)(401)(84)
Total other expenses(482)(344)(138)
Income Before Income Taxes2,859 761 2,098 
Income tax expense672 251 421 
Net Income$2,187 $510 $1,677 
Business Metrics   
Average natural gas price — Henry Hub ($/MMBtu)$3.84 $2.08 85 %
(a)Includes realized gains and losses from financially settled transactions
(b)Includes trading gains and losses and ancillary revenues
(c)Includes amortization of SO2 and NOx credits and excludes amortization of RGGI credits

Gross Margin
The Company calculates gross margin in order to evaluate operating performance as operating revenues less cost of adding NOx controlsfuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization and depreciation and amortization.
49

Economic Gross Margin
In addition to gross margin, the Company evaluates its operating performance using the measure of economic gross margin, which is not a GAAP measure and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in Connecticut.this report. Economic gross margin should be viewed as a supplement to and not a substitute for the Company's presentation of gross margin, which is the most directly comparable GAAP measure. Economic gross margin is not intended to represent gross margin. The Company believes that economic gross margin is useful to investors as it is a key operational measure reviewed by the Company's chief operating decision maker. Economic gross margin is defined as the sum of retail revenue, energy revenue, capacity revenue and other revenue, less cost of fuels, purchased energy and other cost of sales. Economic gross margin does not include mark-to-market gains or losses on economic hedging activities, contract amortization, emission credit amortization, depreciation and amortization, operations and maintenance, or other costs of operations.
The tables below present the composition and reconciliation of gross margin and economic gross margin for the years ended December 31, 2021 and 2020:
Year Ended December 31, 2021
($ in millions, except otherwise noted)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue$8,410 $11,862 $3,290 $(1)$23,561 
Energy revenue329 508 371 1,215 
Capacity revenue— 718 57 — 775 
Mark-to-market for economic hedging activities(3)(88)(86)13 (164)
Contract amortization— (26)(4)— (30)
Other revenue1,557 59 25 (9)1,632 
Operating revenue(a)
10,293 13,033 3,653 10 26,989 
Cost of fuel(1,424)(196)(224)— (1,844)
Purchased energy and other costs of sales(b)(c)(d)
(6,108)(10,775)(2,882)(1)(19,766)
Mark-to-market for economic hedging activities988 1,803 102 (13)2,880 
Contract and emission credit amortization(28)(17)— (43)
Depreciation and amortization(331)(338)(88)(28)(785)
Gross margin$3,420 $3,499 $544 $(32)$7,431 
Less: Mark-to-market for economic hedging activities, net985 1,715 16 — 2,716 
Less: Contract and emission credit amortization, net(54)(21)— (73)
Less: Depreciation and amortization(331)(338)(88)(28)(785)
Economic gross margin$2,764 $2,176 $637 $(4)$5,573 
(a) Includes trading gains and losses and ancillary revenues
(b) Includes capacity and emissions credits
(c) Includes $2,648 million, $183 million and $1,033 million of TDSP expense in Texas, East, and West/Services/Other respectively
(d) Excludes depreciation and amortization shown separately
Business MetricsTexasEastWest/Services/OtherCorporate/EliminationsTotal
Home electricity sales volume (GWh)42,397 14,108 2,252 — 58,757 
Business electricity sales volume (GWh)34,367 53,204 10,625 — 98,196 
Home natural gas retail sales volumes (MDth)— 74,920 97,272 — 172,192 
Business natural gas retail sales volumes (MDth)— 1,595,533 109,021 — 1,704,554 
Average retail Home customer count (in thousands)(a)
3,055 1,844 962 — 5,861 
Ending retail Home customer count (in thousands)(a)
3,024 1,766 932 — 5,722 
GWh sold36,920 11,452 8,503 — 56,875 
GWh generated(b) (c)
36,920 7,494 7,949 — 52,363 
(a) Home customer count includes recurring residential customers, services customers and municipal aggregations
(b) Includes owned and leased generation, excludes tolled generation and equity investments
(c) Includes 1,054 GWh and 2,445 GWh in East and West/Services/Other respectively that was sold to Generation Bridge in December 2021


50

Year Ended December 31, 2020
($ in millions, except otherwise noted)TexasEast
West/Services/Other(a)
Corporate/EliminationsTotal
Retail revenue$6,061 $1,305 $96 $(2)$7,460 
Energy revenue24 183 333 (1)539 
Capacity revenue— 620 61 (1)680 
Mark-to-market for economic hedging activities88 (3)95 
Other revenue222 62 43 (8)319 
Operating revenue6,309 2,258 530 (4)9,093 
Cost of fuel(546)(151)(154)— (851)
Purchased energy and other costs of sales(a)(b)(c)
(3,110)(876)(89)(4,069)
Mark-to-market for economic hedging activities(211)— (8)(214)
Contract and emission credit amortization(5)— — — (5)
Depreciation and amortization(227)(138)(36)(34)(435)
Gross margin$2,210 $1,098 $251 $(40)$3,519 
Less: Mark-to-market for economic hedging activities, net(209)93 (3)— (119)
Less: Contract and emission credit amortization(5)— — — (5)
Less: Depreciation and amortization(227)(138)(36)(34)(435)
Economic gross margin$2,651 $1,143 $290 $(6)$4,078 
(a) Includes capacity and emissions credits
(b) Includes $1,967 million and $10 million of electric TDSP charges for Texas and East, respectively
(c) Excludes depreciation and amortization shown separately
Business MetricsTexasEastWest/Services/OtherCorporate/EliminationsTotal
Home electricity sales volume (GWh)38,473 10,221 — — 48,694 
Business electricity sales volume (GWh)17,928 1,596 — — 19,524 
Natural gas retail sales volumes (MDth)— 23,509 — — 23,509 
Average retail Home customer count (in thousands)(a)
2,449 1,175 — — 3,624 
Ending retail Home customer count (in thousands)(a)
2,451 1,136 — — 3,587 
GWh sold31,385 8,136 9,569 — 49,090 
GWh generated(b)(c)
31,385 4,102 9,171 — 44,658 
(a) Home customer count includes recurring residential customers and municipal aggregations
(b) Includes owned and leased generation, excludes tolled generation and equity investments
(c) Includes 1,192 GWh and 3,002 GWh in East and West/Services/Other respectively that was sold to Generation Bridge in December 2021

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The table below summarizesrepresents the statusweather metrics for 2021 and 2020:
 Year ended
December 31,
Quarter ended
December 31,
Quarter ended September 30,Quarter ended
June 30,
Quarter ended
March 31,
Weather MetricsTexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
2021 
CDDs(b)
2,960 1,275 1,877 386 91 185 1,589 784 1,134 899 362 521 86 38 37 
HDDs(b)
1,562 4,306 2,060 360 1,377 662 — 38 82 541 192 1,120 2,350 1,201 
2020
CDDs3,102 1,362 1,971 280 79 181 1,640 874 1,152 1,012 353 562 170 56 76 
HDDs1,501 4,268 1,939 634 1,517 763 72 70 634 178 791 2,045 994 
10-year average
CDDs3,090 1,297 1,924 281 85 157 1,690 818 1,159 1,003 356 557 116 38 51 
HDDs1,691 4,558 2,044 693 1,584 774 56 10 59 521 193 937 2,397 1,067 
(a) The West/Services/Other weather metrics are comprised of NRG's coal fleet with respectthe average of the CDD and HDD regional results for the West - California and West - South Central regions
(b) National Oceanic and Atmospheric Administration-Climate Prediction Center - A Cooling Degree Day, or CDD, represents the number of degrees that the mean temperature for a particular day is above 65 degrees Fahrenheit in each region. A Heating Degree Day, or HDD, represents the number of degrees that the mean temperature for a particular day is below 65 degrees Fahrenheit in each region. The CDDs/HDDs for a period of time are calculated by adding the CDDs/HDDs for each day during the period

Winter Storm Uri
During the year ended December 31, 2021, Winter Storm Uri's pre-tax financial impact to air quality controls. Planned investmentsthe Company was a loss of $380 million, which reflects the recovery of $689 million of cost of operations as a result of the expected proceeds from the Uplift Securitization. The following impacts are either in construction or budgetedfurther discussed in the existing capital expenditures budget. Changes to regulations could result in changes to planned installation dates. NRG uses an integrated approach to fuels, controls and emissions markets to meet environmental standards.
    
SO2
 
NOx
 Mercury Particulate
Units State Control Equipment Install Date Control Equipment Install Date Control Equipment Install Date Control Equipment Install Date
Indian River 4 DE CDS 2011 LNBOFA/SCR 1999/2011 ACI/CDS/FF 2008/2011 ESP/FF 1980/2011
Joliet 6, 7, 8 IL Gas Conversion 2016 OFA 2016 Gas Conversion 2016 Gas Conversion 2016
Limestone 1-2 TX FGD 1985-86 LNBOFA 2002/2022 ACI 2015 ESP 1985-1986
Powerton 5 IL DSI 2016 OFA/SNCR 2003/2012 ACI 2009 ESP/upgrade 1973/2016
Powerton 6 IL DSI 2014 OFA/SNCR 2002/2012 ACI 2009 ESP/upgrade 1976/2014
W.A. Parish 5, 6, 7 TX FF co-benefit 1988 SCR 2004 ACI 2015 FF 1988
W.A. Parish 8 TX FGD 1982 SCR 2004 ACI 2015 FF 1988
Waukegan 7 IL DSI 2014 LNBOFA 2002 ACI 2008 ESP/upgrade 1958/2002, 2014
Waukegan 8 IL DSI 2015 LNBOFA 1999 ACI 2008 ESP/upgrade 1962/1999, 2015
Will County 4 IL DSI 2017 LNBOFA/SNCR 
1999,2001/
2012
 ACI 2009 ESP/upgrade 
1963,72/
2000

related sections below:
(In millions)
Gross margin - Texas$88 
Gross margin - East146 
Gross margin - West/Services/Other13 
    Total gross margin247 
ACI -  Activated Carbon InjectionOperations and maintenance expense
(2)
Selling, general and administrative costs(29)
Provision for credit losses(596)
    Total impact to loss before income taxes$(380)
The Company continues to pursue additional mitigants including, but not limited to, customer bad debt mitigation, counterparty default recovery, and additional ERCOT default recovery.
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Gross margin and economic gross margin
Gross margin increased $3.9 billion and economic gross margin increased $1.5 billion, both of which include intercompany sales, during the year ended December 31, 2021, compared to the same period in 2020. The detail by segment is as follows:
Texas
(In millions)
Higher gross margin due to Winter Storm Uri, primarily driven by hedging optimization, partially offset by the negative impact of an increase in unhedgeable ancillary and operating reserve demand curve, net of securitization proceeds of $689 million$88 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to increased volumes from the acquisition of Direct Energy in January 2021280 
Higher gross margin due to market optimization activities
Lower gross margin due to a 22% increase in overall average costs to serve the retail load, driven primarily by increases in power, ancillary, fuel costs and the effect of the current year Limestone Unit 1 extended forced outage, totaling $349 million, partially offset by higher net revenue primarily driven by increased net revenue rates as a result of changes in customer term, product and mix of $2.50 per MWh, or $156 million(193)
Lower net revenue due to a decrease in load of 834,000 MWhs from weather(72)
Lower net revenue due to attrition and customer mix(5)
Other
Increase in economic gross margin$113 
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges1,194 
Decrease in contract and emission credit amortization
Increase in depreciation and amortization(104)
Increase in gross margin$1,210 

East
(In millions)
Higher gross margin due to Winter Storm Uri, primarily driven by natural gas optimization during volatile pricing that occurred during the weather event$146 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to increased volumes from the acquisition of Direct Energy in January 2021, including $503 million from natural gas activity and $436 million from power activity939 
Higher business demand response gross margin primarily from the early settlement of capacity obligations in 2021 compared to the same period in 2020 of $63 million and higher volumes sold in 2021 of $10 million73 
Higher gross margin due to a lower of cost or market adjustment on oil inventory in 202029 
Lower gross margin from higher supply costs of $8.25 per MWh, or $78 million and lower volumes due to attrition, weather and customer mix of $45 million, partially offset by higher revenue of $3 per MWh, or $29 million(94)
Lower gross margin due to a 20% decrease in average realized pricing primarily at Midwest Generation(39)
Lower gross margin due to the sale of fossil generating assets to Generation Bridge in December 2021(16)
Lower gross margin from market optimization activities(5)
Increase in economic gross margin$1,033 
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges1,622 
Increase in contract amortization(54)
Increase in depreciation and amortization(200)
Increase in gross margin$2,401 

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West/Services/Other
(In millions)
Higher gross margin due to Winter Storm Uri, driven by optimization during volatility in gas pricing$13 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to the acquisition of Direct Energy in January 2021425 
Lower gross margin primarily at Cottonwood driven by an 83% increase in fuel cost, partially offset by a 41% increase in realized power prices.(31)
Lower gross margin primarily due to prior year MISO uplift payments resulting from out-of-market dispatch during Hurricane Laura(29)
Lower gross margin from generation outage insurance proceeds received in 2020 for forced outages in 2019, partially offset by Sunrise business interruption proceeds received in 2021 for forced outages in 2019(22)
Lower gross margin from market optimization activities(9)
Lower gross margin due to the sale of fossil generating assets to Generation Bridge in December 2021(7)
Other
Increase in economic gross margin$347 
Increase in mark-to-market for economic hedges primarily due to net unrealized gains/losses on open positions related to economic hedges19 
Increase in contract amortization(21)
Increase in depreciation and amortization(52)
Increase in gross margin$293 

Mark-to-market for Economic Hedging Activities
Mark-to-market for economic hedging activities includes asset-backed hedges that have not been designated as cash flow hedges. Total net mark-to-market results increased by $2.8 billion during the year ended December 31, 2021, compared to the same period in 2020.
The breakdown of gains and losses included in operating revenues and operating costs and expenses by segment was as follows:
Year Ended December 31, 2021
(In millions)TexasEastWest/Services/OtherEliminationsTotal
Mark-to-market results in operating revenues    
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges$— $(34)$(4)$(2)$(40)
Reversal of acquired (gain) positions related to economic hedges— (6)— — $(6)
Net unrealized (losses) on open positions related to economic hedges(3)(48)(82)15 (118)
Total mark-to-market (losses) in operating revenues$(3)$(88)$(86)$13 $(164)
Mark-to-market results in operating costs and expenses    
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges$(3)$— $— $$(1)
Reversal of acquired loss/(gain) positions related to economic hedges42 235 (15)— 262 
Net unrealized gains on open positions related to economic hedges949 1,568 117 (15)2,619 
Total mark-to-market gains in operating costs and expenses$988 $1,803 $102 $(13)$2,880 

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Year Ended December 31, 2020
(In millions)TexasEastWest/Services/OtherEliminationsTotal
Mark-to-market results in operating revenues    
Reversal of previously recognized unrealized losses/(gains) on settled positions related to economic hedges$$33 $(7)$$31 
Net unrealized gains on open positions related to economic hedges55 64 
Total mark-to-market gains/(losses) in operating revenues$$88 $(3)$$95 
Mark-to-market results in operating costs and expenses    
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(87)$$— $(4)$(86)
Reversal of acquired loss positions related to economic hedges.— — 
Net unrealized (losses) on open positions related to economic hedges(126)(2)— (4)(132)
Total mark-to-market (losses)/gains in operating costs and expenses$(211)$$— $(8)$(214)
Mark-to-market results consist of unrealized gains and losses on contracts that are yet to be settled. The settlement of these transactions is reflected in the same revenue or cost caption as the items being hedged.
The reversals of acquired gain or loss positions were valued based upon the forward prices on the acquisition date.
For the year ended December 31, 2021 the $164 million loss in operating revenues from economic hedge positions was driven primarily by a decrease in the value of open positions as a result of increases in East and West/Services/Other power prices, as well as the reversal of previously recognized unrealized gains on contracts that settled during the period. The $2.9 billion gain in operating costs and expenses from economic hedge positions was driven primarily by an increase in the value of open positions as a result of increases in natural gas and power prices across all segments as well as the reversal of acquired contracts that settled during the year.
For the year ended December 31, 2020 the $95 million gain in operating revenues from economic hedge positions was driven primarily by an increase in the value of open positions as a result of decreases in New York capacity prices, as well as the reversal of previously recognized unrealized losses on contracts that settled during the period. The $214 million loss in operating costs and expenses from economic hedge positions was driven primarily by a decrease in the value of open positions as a result of decreases in ERCOT power prices and heat rate contraction, as well as the reversal of previously recognized unrealized gains on contracts that settled during the period.
In accordance with ASC 815, the following table represents the results of the Company's financial and physical trading of energy commodities for the years ended December 31, 2021 and 2020. The realized and unrealized financial and physical trading results are included in operating revenue. The Company's trading activities are subject to limits within the Company's Risk Management Policy.
 Year ended December 31,
(In millions)20212020
Trading gains/(losses) 
Realized$124 $41 
Unrealized(32)(5)
Total trading gains$92 $36 

Operations and Maintenance Expenses
Operations and maintenance expenses are comprised of the following:
(In millions)TexasEastWest/Services/OtherCorporateEliminationsTotal
Year Ended December 31, 2021$703 $452 $218 $$(5)$1,370 
Year Ended December 31, 2020651 371 104 (6)1,129 
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Operations and maintenance expenses increased by $241 million for the year ended December 31, 2021 compared to the same period in 2020, due to the following:
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$257 
Increase in major maintenance primarily due to the duration and scope of planned and forced outages in Texas during 202127 
Increase in variable operation and maintenance expense at the PJM coal facilities associated with increased generation in 202123 
Increase driven by higher maintenance resulting from the impacts of Winter Storm Uri
Decrease driven by lower retail operations costs(29)
Decrease in lease expense primarily driven by the buyout of the Midwest Generation lease in 2020(16)
Decrease due to the sale of fossil generating assets to Generation Bridge in December 2021(11)
Decrease due to prior year suspended plant project and prior year reserves for obsolete inventory(9)
Other(3)
Increase in operations and maintenance expense$241 
Other Cost of Operations
Other Cost of operations are comprised of the following:
(In millions)TexasEastWest/Services/OtherTotal
Year Ended December 31, 2021$194 $129 $16 $339 
Year Ended December 31, 2020163 91 18 272 
Other cost of operations increased by $67 million for the year ended December 31, 2021 compared to the same period in 2020, due to the following:
CDS - Circulating Dry Scrubber
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$83 
Decrease primarily due to ARO expense in 2020 at Jewett Mine and Joliet as a result of regulatory requirements(15)
Other(1)
Increase in other cost of operations$67 

Depreciation and Amortization
Depreciation and amortization expenses are comprised of the following:
(In millions)TexasEastWest/Services/OtherCorporateTotal
Year Ended December 31, 2021$331 $338 $88 $28 $785 
Year Ended December 31, 2020227 13836 34 435 
Depreciation and amortization expense increased by $350 million for the year ended December 31, 2021 compared to the same period in 2020, primarily due to amortization of acquired intangibles in connection with the acquisition of Direct Energy in January 2021.
Impairment Losses
During the year ended December 31, 2021, the Company recorded impairment losses of $544 million, of which $306 million was recorded in the second quarter related to the decline in capacity prices and the planned retirement of a significant portion of the PJM coal fleet, $213 million in the fourth quarter as a result of changes in the long-term outlook of the Joliet facility prompted by market conditions and an assessment of various alternatives for the long-term operational landscape of the facility including the impact of the CEJA in Illinois, and $25 million related to various other power plants. During the year ended December 31, 2020, the Company recorded impairment losses of $75 million primarily related to the Cottonwood facility and the Home Solar business. Refer to Item 15 — Note 11, Asset Impairments, to the Consolidated Financial Statements for further discussion.
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Selling, General and Administrative Costs
Selling, general and administrative costs are comprised of the following:
(In millions)TexasEastWest/Services/OtherCorporateTotal
Year Ended December 31, 2021$574 $472 $198 $49 $1,293 
Year Ended December 31, 2020467 260 56 27 810 
Selling, general and administrative costs increased by $483 million for the year ended December 31, 2021 compared to the same period in 2020, due to the following:
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$460 
Increase due to Winter Storm Uri, including charitable giving, legal and other costs of $20 million and ERCOT default charges of $9 million29 
Increase due to higher consulting, service and insurance costs26 
Decrease due to lower employee costs(23)
Decrease due to the favorable resolution of a legal matter(15)
Other
Increase in selling, general and administrative costs$483 
Provision for Credit Losses
Provision for credit losses are comprised of the following:
(In millions)TexasEastWest/Services/OtherTotal
Year Ended December 31, 2021$678 $$12 $698 
Year Ended December 31, 202094 14 — 108 
Provision for credit losses increased by $590 million for the year ended December 31, 2021, compared to the same period in 2020, due to the following:
DSI - Dry Sorbent Injection with Trona
(In millions)
Increase due to Winter Storm Uri, including:
ESP - Electrostatic PrecipitatorIncrease of $403 million related to bilateral financial hedging risk
FGD - Flue Gas Desulfurization (wet)Increase of $126 million related to counterparty credit risk

Increase of $67 million related to ERCOT default shortfall payments
FF- Fabric Filter
LNBOFA - Low NOx Burner with Overfire Air
OFA - Overfire Air
SCR - Selective Catalytic Reduction
SNCR - Selective Non-Catalytic Reduction
$
596 
Decrease due to improved collections in the legacy brands, partially offset by the acquisition and integration of Direct Energy in January 2021(6)
Increase in provision for credit losses$590 
Acquisition-Related Transaction and Integration Costs
Acquisition-related transaction and integration costs increased by $70 million when compared to the same period in 2020. Acquisition-related transaction costs increased by $8 million, primarily related to the Direct Energy acquisition. Integration costs increased by $62 million, primarily related to employee costs, software costs and consulting services for the Direct Energy acquisition.
Gain on Sale of Assets
The gain on sale of assets of $247 million was recorded for the year ended December 31, 2021 includes a $210 million gain on the sale of 4,850 MW of fossil generating assets in December 2021, a $20 million gain on the sale of a deactivated site in November 2021, and a $17 million due to the sale of Agua Caliente in February 2021. The gain on the sale of assets of $3 million for the year ended December 31, 2020 was related to the sale of land and investments in January 2020, partially offset by the disposition of the Home Solar business.
Impairment Losses on Investments
During the year ended December 31, 2020, the Company recorded other-than-temporary impairment losses on the Company's investment in Petra Nova Parish Holdings of $18 million, as further described in Item 15 Note 11, Asset Impairments,to the Consolidated Financial Statements.
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Loss on Debt Extinguishment
A loss on debt extinguishment of $77 million was recorded for the year ended December 31, 2021, driven by the redemption of senior notes as further discussed in Item 15 — Note 13, Long-term Debt and Finance Leases, to the Consolidated Financial Statements. A loss on debt extinguishment of $9 million was recorded for the year ended December 31, 2020, driven by the debt extinguished in connection with the sale of Home Solar and the redemptions of the Indian River and Dunkirk bonds.
Interest Expense
Interest expense increased by $84 million for the year ended December 31, 2021 compared to the same period in 2020, primarily due to financings entered into in connection with the Direct Energy acquisition.

Income Tax Expense
For the year ended December 31, 2021, NRG recorded income tax expense of $672 million on pre-tax income of $2.9 billion. For the same period in 2020, NRG recorded an income tax expense of $251 million on pre-tax income of $761 million. The effective tax rate was 23.5% and 33.0% for the years ended December 31, 2021 and 2020, respectively.
For the year ended December 31, 2021, NRG's overall effective tax rate was higher than the federal statutory tax rate of 21% primarily due to state tax expense partially offset by tax benefits from the revaluation of state deferred tax assets, valuation allowance, and settlements of uncertain tax positions.
 Year Ended December 31,
(In millions, except effective income tax rate)20212020
Income from continuing operations before income taxes$2,859 $761 
Tax at federal statutory tax rate600 160 
Foreign rate differential(3)— 
State taxes111 18 
Deferred impact of state tax rate changes(10)
Changes in valuation allowance(29)24 
Permanent differences
Return to provision adjustments36 
Recognition of uncertain tax benefits(10)
Income tax expense$672 $251 
   Effective income tax rate23.5 %33.0 %
The effective income tax rate may vary from period to period depending on, among other factors, the geographic and business mix of earnings and losses and changes in valuation allowances in accordance with ASC 740, Income Taxes, or ASC 740. These factors and others, including the Company's history of pre-tax earnings and losses, are taken into account in assessing the ability to realize deferred tax assets.

Liquidity and Capital Resources
Liquidity Position
As of December 31, 2021 and 2020, NRG's liquidity, excluding collateral funds deposited by counterparties, was approximately $2.7 billion and $7.0 billion, respectively, comprised of the following:
 As of December 31,
(In millions)20212020
Cash and cash equivalents:$250 $3,905 
Restricted cash - operating
Restricted cash - reserves (a)
11 
Total265 3,911 
Total availability under Revolving Credit Facility and collective collateral facilities(b)
2,421 3,129 
Total liquidity, excluding collateral funds deposited by counterparties$2,686 $7,040 
(a)Includes reserves primarily for debt service, performance obligations and capital expenditures
(b)Total capacity of Revolving Credit Facility and collective collateral facilities was $5.9 billion and $4.0 billion as of December 31, 2021 and December 31, 2020, respectively

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As of December 31, 2021, total liquidity, excluding collateral funds deposited by counterparties, decreased by $4.4 billion. The decrease was primarily driven by the closing of the Direct Energy acquisition and the impact of Winter Storm Uri. Changes in cash and cash equivalent balances are further discussed under the heading Cash Flow Discussion. Cash and cash equivalents at December 31, 2021 were predominantly held in money market funds invested in treasury securities, treasury repurchase agreements or government agency debt.
Management believes that the Company's liquidity position and cash flows from operations will be adequate to finance operating and maintenance capital expenditures, to fund dividends to NRG's common stockholders, and to fund other liquidity commitments. Management continues to regularly monitor the Company's ability to finance the needs of its operating, financing and investing activity within the dictates of prudent balance sheet management.
Credit Ratings
On March 17, 2021, following Winter Storm Uri, Standard & Poor's placed NRG's issuer credit rating of BB+ on CreditWatch with negative implications. On May 12, 2021, Standard & Poor's affirmed NRG's issuer credit rating of BB+ with a stable outlook. On March 19, 2021, Moody's changed NRG's rating outlook from positive to stable. At the same time, Moody's affirmed NRG's corporate family rating of Ba1.
The following table summarizes the Company's current credit ratings:
S&PMoody's
NRG Energy, Inc.BB+ StableBa1 Stable
3.75% Senior Secured Notes, due 2024BBB-Baa3
2.00% Senior Secured Notes, due 2025BBB-Baa3
2.45% Senior Secured Notes, due 2027BBB-Baa3
6.625% Senior Notes, due 2027BB+Ba2
5.75% Senior Notes, due 2028BB+Ba2
3.375% Senior Notes, due 2029BB+Ba2
4.45% Senior Secured Notes, due 2029BBB-Baa3
5.25% Senior Notes, due 2029BB+Ba2
3.625% Senior Notes, due 2031BB+Ba2
3.875% Senior Notes, due 2032BB+Ba2
Revolving Credit Facility, due 2024BBB-Baa3

Liquidity
The principal sources of liquidity for NRG's operating and capital expenditures are expected to be derived from cash on hand, cash flows from operations and financing arrangements. As described in Item 15 — Note 13, Long-term Debt and Finance Leases, to the Consolidated Financial Statements, the Company's financing arrangements consist mainly of the Senior Notes, Convertible Senior Notes, Senior Secured First Lien Notes, Revolving Credit Facility, and tax-exempt bonds.
The Company's requirements for liquidity and capital resources, other than for operating its facilities, can generally be categorized by the following: (i) market operations activities; (ii) debt service obligations, as described more fully in Item 15 — Note 13, Long-term Debt and Finance Leases, to the Consolidated Financial Statements; (iii) capital expenditures, including maintenance, repowering, development, and environmental; and (iv) allocations in connection with acquisition opportunities, debt repayments, share repurchases and dividend payments to stockholders, as described in Item 15 — Note 16, Capital Structure, to the Consolidated Financial Statements.
Direct Energy Acquisition
On January 5, 2021, the Company acquired Direct Energy, which had been a North American subsidiary of Centrica. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces.
The Company paid an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment of $77 million. The Company funded the purchase price using a combination of $715 million of cash on hand, $166 million from a draw on its Revolving Credit Facility (of which $107 million was used to fund acquisition costs and financing fees that are not included in the aggregate purchase price above) as well as approximately $2.9 billion in secured and unsecured corporate debt issued in December 2020. The final purchase price adjustment resulted in additional payment of $22 million, which was paid to Centrica in December 2021.
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Collateral Facility Increases
The following table presents increases to the Company's liquidity and collateral facilities in connection with the Direct Energy acquisition:
(In millions)
Available on Acquisition Closing Date
Revolving Credit Facility commitment increase$802 
Revolving Credit Facility new tranche273 
Facility agreement in connection with the sale of pre-capitalized trust securities874 
Available as of December 31, 2020
Credit default swap facility150 
Revolving accounts receivable financing facility750 
Repurchase facility75 
Bilateral letter of credit facilities475 
Total Increases to Liquidity and Collateral Facilities$3,399 
Planned Debt Reduction
In light of the impact of Winter Storm Uri, the Company's deleveraging program will extend to 2023. The Company remains committed to maintaining a strong balance sheet and continues to work to achieve investment grade credit metrics.
Issuance of 2032 Senior Notes
On August 23, 2021, the Company issued $1.1 billion of aggregate principal amount at par of 3.875% senior notes due 2032 (the "2032 Senior Notes"). The 2032 Senior Notes are senior unsecured obligations of NRG and are guaranteed by certain of its subsidiaries. The 2032 Senior Notes were issued under NRG's Sustainability-Linked Bond Framework, which sets out certain sustainability targets, including reducing greenhouse gas emissions. Failure to meet such sustainability targets will result in a 25 basis point increase to the interest rate payable on the 2032 Senior Notes from and including August 15, 2026.
Senior Note Redemptions
During the year ended December 31, 2021, the Company redeemed $1.9 billion in aggregate principal of its Senior Notes for $1.9 billion using the proceeds of the 2032 Senior Notes and cash on hand. In connection with the redemptions, a $77 million loss on debt extinguishment was recorded.
Receivables Facility
On July 26, 2021, NRG Receivables LLC, a wholly-owned indirect subsidiary of the Company, renewed its existing accounts receivable securitized borrowings facility (the "Receivables Facility") to, among others, (i) increase the facility size to $800 million, (ii) extend the maturity date until July 26, 2022, (iii) make certain adjustments to the pool of receivables through the Receivables Facility and certain related covenants, and (iv) provide for revised language relating to interest determination based on SOFR in case of a LIBOR cessation or the occurrence of certain other trigger events. As of December 31, 2021, there were no outstanding borrowings and there were $400 million in letters of credit issued under the Receivables Facility.
Repurchase Facility
On July 26, 2021, the Company renewed its existing uncommitted repurchase facility ("Repurchase Facility") to, among other things, (i) extend the maturity date to July 26, 2022 and (ii) provide for revised language relating to interest determination based on SOFR in case of a LIBOR cessation or the occurrence of certain other trigger events. On February 9, 2022, the Company entered into amendments to its existing Repurchase Facility to, among other things, (i) increase the size of the facility from $75 million to $150 million and (ii) replace LIBOR with term SOFR as the benchmark for the pricing rate. The Repurchase Facility has no commitment fee and borrowings will be drawn at SOFR + 1.30%. As of December 31, 2021, there were no outstanding borrowings under the Repurchase Facility.
Sale of 4.8 GW of Fossil Generation Assets
On December 1, 2021, the Company closed the previously announced sale of approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. At Closing, NRG received $623 million of net proceeds, after working capital and other adjustments, including a deduction for cash flows generated of approximately $11 million per month from the beginning of the year until the closing of the transaction, in lieu of
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cash flows generated during the year. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
Sale of Agua Caliente
On February 3, 2021, the Company closed on the sale of its 35% ownership in the Agua Caliente solar project to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including cash disposed of $7 million.
CARES Act
On March 27, 2020, the U.S. government enacted the CARES Act, which provides, among other things: (i) the option to defer payments of certain 2019 employer payroll taxes incurred after the date of enactment; and (ii) allows NOLs from tax years 2018, 2019, and 2020 to be carried back five years. The total benefit to the Company due to the CARES Act was $35 million. Of this amount, $13 million was paid to social security in 2021 and $13 million will be payable in 2022.
Pension Plan Contribution
The American Rescue Plan Act ("ARPA") was enacted on March 11, 2021 to provide economic relief related to the COVID-19 pandemic. ARPA provided pension funding relief for single employer plans, among other provisions. As a result, NRG reduced its 2021 planned cash contribution by approximately $23 million.
Pension and Other postretirement benefits minimum funding requirements
As of December 31, 2021, the Company does not have estimated environmentalminimum pension contributions required under the Pension Protection Act of 2006 for the next 5 years. As of December 31, 2021, the Company’s estimated Other postretirement benefits minimum funding requirements for the next 5 years were $33 million, of which $7 million are required to be made within the next 12 months. These amounts represent estimates based on assumptions that are subject to change. For further discussion, see Item 15 — Note 15, Benefit Plans and Other Postretirement Benefits, to the Consolidated Financial Statements.
Debt Service Obligations
Principal payments on debt and finance leases as of December 31, 2021 are due in the following periods:
(In millions)
Description20222023202420252026ThereafterTotal
 Recourse Debt:     
Senior notes, due 2027$— $— $— $— $— $375 $375 
Senior notes, due 2028— — — — — 821 821 
Senior notes, due 2029— — — — — 733 733 
Senior notes, due 2029— — — — — 500 500 
Senior notes, due 2031— — — — — 1,030 1,030 
Senior Notes, due 2032— — — — — 1,100 1,100 
Convertible Senior Notes, due 2048— — — — — 575 575 
Senior Secured First Lien Notes, due 2024— — 600 — — — 600 
Senior Secured First Lien Notes, due 2025— — — 500 — — 500 
Senior Secured First Lien Notes, due 2027— — — — — 900 900 
Senior Secured First Lien Notes, due 2029— — — — — 500 500 
Tax-exempt bonds— — — — — 466 466 
Subtotal Recourse Debt— — 600 500 — 7,000 8,100 
Finance Leases:
Finance leases— 13 
      Subtotal Finance Leases— 13 
Total Debt and Finance Leases$$$603 $502 $— $7,001 $8,113 
Interest Payments$385 $383 $363 $352 $334 $1,224 $3,041 
For further discussion, see Item 15 — Note 13, Long-term Debt and Finance Leases.
61

Market Operations
The Company's market operations activities require a significant amount of liquidity and capital resources. These liquidity requirements are primarily driven by: (i) margin and collateral posted with counterparties; (ii) margin and collateral required to participate in physical markets and commodity exchanges; (iii) timing of disbursements and receipts (e.g. buying fuel before receiving energy revenues); and (iv) initial collateral for large structured transactions. As of December 31, 2021, market operations had total cash collateral outstanding of $291 million and $3.5 billion outstanding in letters of credit to third parties primarily to support its market activities. As of December 31, 2021, total funds deposited by counterparties were $845 million in cash and $429 million of letters of credit.
The Company has entered into long-term contractual arrangements to procure certain fuel and transportation services for the Company's generation assets. As of December 31, 2021, the Company had minimum payment obligations under such outstanding agreements of $378 million, with $122 million payable within the next 12 months. Additionally, the Company has long-term contractual commitments related to electricity and natural gas products, including power purchases, gas transportation and storage of various quantities and durations, and renewable purchased power agreements under PPAs with third-party project developers, which are accounted for as NPNS. As of December 31, 2021, the Company had minimum purchased energy commitments of $5.0 billion, with $1.6 billion payable within the next 12 months. For further discussion, see Item 15 — Note 23, Commitments and Contingencies.
Future liquidity requirements may change based on the Company's hedging activities and structures, fuel purchases, and future market conditions, including forward prices for energy and fuel and market volatility. In addition, liquidity requirements are dependent on the Company's credit ratings and general perception of its creditworthiness.
First Lien Structure
NRG has granted first liens to certain counterparties on a substantial portion of the Company's assets, subject to various exclusions including NRG's assets that have project-level financing and the assets of certain non-guarantor subsidiaries, to reduce the amount of cash collateral and letters of credit that it would otherwise be required to post from time to time to support its obligations under out-of-the-money hedge agreements for forward sales of power or MWh equivalents. The first lien program does not limit the volume that can be hedged or the value of underlying out-of-the-money positions. The first lien program also does not require NRG to post collateral above any threshold amount of exposure. The first lien structure is not subject to unwind or termination upon a ratings downgrade of a counterparty and has no stated maturity date.
The Company's first lien counterparties may have a claim on its assets to the extent market prices exceed the hedged prices. As of December 31, 2021, all hedges under the first liens were out-of-the-money on a counterparty aggregate basis.
The following table summarizes the amount of MW hedged against the Company's coal and nuclear assets and as a percentage relative to the Company's coal and nuclear capacity under the first lien structure as of December 31, 2021:

Equivalent Net Sales Secured by First Lien Structure (a)
20222023
In MW653738
As a percentage of total net coal and nuclear capacity (b)
15%17%
(a)Equivalent Net Sales include natural gas swaps converted using a weighted average heat rate by region
(b)Net coal and nuclear capacity represents 80% of the Company's total coal and nuclear assets eligible under the first lien, which excludes coal assets acquired in the Midwest Generation acquisition
Capital Expenditures
The following table summarizes the Company's capital expenditures for the referenced periods by region:
 Texas East/West  Total
 (In millions)
2019$1
 $2
  $3
20208
 5
  13
20213
 8
  11
20224
 4
  8
2023
 
  
Total$16
 $19
  $35

Common Stock Dividends
The Company returned $37 million of capital to shareholders inmaintenance, environmental, and growth investments for the year ended 2018 throughDecember 31, 2021:
(In millions)MaintenanceEnvironmental
Growth Investments(a)
Total
Texas$(127)$(1)$(25)$(153)
East(23)(1)(26)(50)
West/Services/Other(21)— — (21)
Corporate(4)— (41)(45)
Total cash capital expenditures for 2021(175)(2)(92)(269)
 Investments— — (47)(47)
Total capital expenditures and investments$(175)$(2)$(139)$(316)
(a)Includes other investments, acquisitions, digital NRG and integration projects
62

Growth investments in East for the year ended December 31, 2021 include the Astoria generating facility, for which the Company has proposed to replace existing units with a $0.12 dividend per common share.
single, new state-of-the-art Simple Cycle Combustion Turbine having a total generating capacity of 437 MW. On January 23, 2019, NRG declaredOctober 27, 2021, the NYSDEC Staff denied the Company's application for an air permit. On November 26, 2021, Astoria Gas Turbine Power LLC filed a quarterly dividendRequest for Adjudicatory Hearing on the Company's common stockNYSDEC's denial. To date, the Company has spent approximately $42 million on the Astoria project. Additionally, included in Investments are expenditures for Encina site improvements classified as ARO payments. Demolition of $0.03 per share, or $0.12 per share on an annualized basis, payable on February 15, 2019,Encina is underway and is expected to stockholdersbe completed in the first half of record as of February 1, 2019.2022. The Company's common stock dividends are subjectCompany expects to available capital, market conditions, and compliance with associated laws and regulations.begin marketing the site in 2022.


Share Repurchases
In 2018,December 2021, the Company's board of directors authorized the Company to repurchase $1.5$1.0 billion of its common stock. Through December 31, 2021, the Company completed $53 million of share repurchases at an average price of $40.22 per share, including $9 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuances. Through February 24, 2022, an additional $82 million of share repurchases were executed at an average price of $40.26 per share, including $6 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuances. See Item 15 - Note 16, Capital Structure, to the Consolidated Financial Statements for additional discussion.
Renewable Power Purchase Agreements
The Company's strategy is to procure mid to long-term generation through power purchase agreements. As of December 31, 2021, NRG has entered into PPAs totaling approximately 2.6 GW with third-party project developers and other counterparties. The average tenor of these agreements is twelve years. The Company expects to continue evaluating and executing similar agreements that support the needs of the business. The total GW entered into through PPAs may be impacted by contract terminations when they occur.
Dividend Increase
In the first quarter of 2021, NRG increased the annual dividend to $1.30 from $1.20 per share. In 2022, NRG further increased the annual dividend to $1.40 per share, representing an 8% increase from 2021. The Company expects to target an annual dividend growth rate of 7-9% per share in subsequent years.
COVID-19
While the pandemic presented risks, as further described in Part II, Item 1A — Risk Factors of this Form 10-K, to the Company’s business, there was not a material adverse impact on the Company’s results of operations for the years ended December 31, 2021 and 2020.
48

Consolidated Results of Operations for the years ended December 31, 2021 and 2020
The following table provides selected financial information for the Company:
 Year Ended December 31,
(In millions, except otherwise noted)20212020Change
Operating Revenues   
Retail revenue$23,561 $7,460 $16,101 
Energy revenue(a)
1,215 539 676 
Capacity revenue(a)
775 680 95 
Mark-to-market for economic hedging activities(164)95 (259)
Contract amortization(30)— (30)
Other revenues(a)(b)
1,632 319 1,313 
Total operating revenues26,989 9,093 17,896 
Operating Costs and Expenses   
Cost of fuel1,844 851 (993)
Purchased energy and other cost of sales(c)
19,766 4,069 (15,697)
Mark-to-market for economic hedging activities(2,880)214 3,094 
Contract and emissions credit amortization(c)
43 (38)
Operations and maintenance1,370 1,129 (241)
Other cost of operations339 272 (67)
Cost of operations (excluding depreciation and amortization shown below)20,482 6,540 (13,942)
Depreciation and amortization785 435 (350)
Impairment losses544 75 (469)
Selling, general and administrative costs1,293 810 (483)
Provision for credit losses698 108 (590)
Acquisition-related transaction and integration costs93 23 (70)
Total operating costs and expenses23,895 7,991 (15,904)
Gain on sale of assets247 244 
Operating Income3,341 1,105 2,236 
Other Income/(Expense)   
Equity in earnings of unconsolidated affiliates17 17 — 
Impairment losses on investments— (18)18 
Other income, net63 67 (4)
Loss on debt extinguishment, net(77)(9)(68)
Interest expense(485)(401)(84)
Total other expenses(482)(344)(138)
Income Before Income Taxes2,859 761 2,098 
Income tax expense672 251 421 
Net Income$2,187 $510 $1,677 
Business Metrics   
Average natural gas price — Henry Hub ($/MMBtu)$3.84 $2.08 85 %
(a)Includes realized gains and losses from financially settled transactions
(b)Includes trading gains and losses and ancillary revenues
(c)Includes amortization of SO2 and NOx credits and excludes amortization of RGGI credits

Gross Margin
The Company calculates gross margin in order to evaluate operating performance as operating revenues less cost of fuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization and depreciation and amortization.
49

Economic Gross Margin
In addition to gross margin, the Company evaluates its operating performance using the measure of economic gross margin, which is not a GAAP measure and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report. Economic gross margin should be viewed as a supplement to and not a substitute for the Company's presentation of gross margin, which is the most directly comparable GAAP measure. Economic gross margin is not intended to represent gross margin. The Company believes that economic gross margin is useful to investors as it is a key operational measure reviewed by the Company's chief operating decision maker. Economic gross margin is defined as the sum of retail revenue, energy revenue, capacity revenue and other revenue, less cost of fuels, purchased energy and other cost of sales. Economic gross margin does not include mark-to-market gains or losses on economic hedging activities, contract amortization, emission credit amortization, depreciation and amortization, operations and maintenance, or other costs of operations.
The tables below present the composition and reconciliation of gross margin and economic gross margin for the years ended December 31, 2021 and 2020:
Year Ended December 31, 2021
($ in millions, except otherwise noted)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue$8,410 $11,862 $3,290 $(1)$23,561 
Energy revenue329 508 371 1,215 
Capacity revenue— 718 57 — 775 
Mark-to-market for economic hedging activities(3)(88)(86)13 (164)
Contract amortization— (26)(4)— (30)
Other revenue1,557 59 25 (9)1,632 
Operating revenue(a)
10,293 13,033 3,653 10 26,989 
Cost of fuel(1,424)(196)(224)— (1,844)
Purchased energy and other costs of sales(b)(c)(d)
(6,108)(10,775)(2,882)(1)(19,766)
Mark-to-market for economic hedging activities988 1,803 102 (13)2,880 
Contract and emission credit amortization(28)(17)— (43)
Depreciation and amortization(331)(338)(88)(28)(785)
Gross margin$3,420 $3,499 $544 $(32)$7,431 
Less: Mark-to-market for economic hedging activities, net985 1,715 16 — 2,716 
Less: Contract and emission credit amortization, net(54)(21)— (73)
Less: Depreciation and amortization(331)(338)(88)(28)(785)
Economic gross margin$2,764 $2,176 $637 $(4)$5,573 
(a) Includes trading gains and losses and ancillary revenues
(b) Includes capacity and emissions credits
(c) Includes $2,648 million, $183 million and $1,033 million of TDSP expense in Texas, East, and West/Services/Other respectively
(d) Excludes depreciation and amortization shown separately
Business MetricsTexasEastWest/Services/OtherCorporate/EliminationsTotal
Home electricity sales volume (GWh)42,397 14,108 2,252 — 58,757 
Business electricity sales volume (GWh)34,367 53,204 10,625 — 98,196 
Home natural gas retail sales volumes (MDth)— 74,920 97,272 — 172,192 
Business natural gas retail sales volumes (MDth)— 1,595,533 109,021 — 1,704,554 
Average retail Home customer count (in thousands)(a)
3,055 1,844 962 — 5,861 
Ending retail Home customer count (in thousands)(a)
3,024 1,766 932 — 5,722 
GWh sold36,920 11,452 8,503 — 56,875 
GWh generated(b) (c)
36,920 7,494 7,949 — 52,363 
(a) Home customer count includes recurring residential customers, services customers and municipal aggregations
(b) Includes owned and leased generation, excludes tolled generation and equity investments
(c) Includes 1,054 GWh and 2,445 GWh in East and West/Services/Other respectively that was sold to Generation Bridge in December 2021


50

Year Ended December 31, 2020
($ in millions, except otherwise noted)TexasEast
West/Services/Other(a)
Corporate/EliminationsTotal
Retail revenue$6,061 $1,305 $96 $(2)$7,460 
Energy revenue24 183 333 (1)539 
Capacity revenue— 620 61 (1)680 
Mark-to-market for economic hedging activities88 (3)95 
Other revenue222 62 43 (8)319 
Operating revenue6,309 2,258 530 (4)9,093 
Cost of fuel(546)(151)(154)— (851)
Purchased energy and other costs of sales(a)(b)(c)
(3,110)(876)(89)(4,069)
Mark-to-market for economic hedging activities(211)— (8)(214)
Contract and emission credit amortization(5)— — — (5)
Depreciation and amortization(227)(138)(36)(34)(435)
Gross margin$2,210 $1,098 $251 $(40)$3,519 
Less: Mark-to-market for economic hedging activities, net(209)93 (3)— (119)
Less: Contract and emission credit amortization(5)— — — (5)
Less: Depreciation and amortization(227)(138)(36)(34)(435)
Economic gross margin$2,651 $1,143 $290 $(6)$4,078 
(a) Includes capacity and emissions credits
(b) Includes $1,967 million and $10 million of electric TDSP charges for Texas and East, respectively
(c) Excludes depreciation and amortization shown separately
Business MetricsTexasEastWest/Services/OtherCorporate/EliminationsTotal
Home electricity sales volume (GWh)38,473 10,221 — — 48,694 
Business electricity sales volume (GWh)17,928 1,596 — — 19,524 
Natural gas retail sales volumes (MDth)— 23,509 — — 23,509 
Average retail Home customer count (in thousands)(a)
2,449 1,175 — — 3,624 
Ending retail Home customer count (in thousands)(a)
2,451 1,136 — — 3,587 
GWh sold31,385 8,136 9,569 — 49,090 
GWh generated(b)(c)
31,385 4,102 9,171 — 44,658 
(a) Home customer count includes recurring residential customers and municipal aggregations
(b) Includes owned and leased generation, excludes tolled generation and equity investments
(c) Includes 1,192 GWh and 3,002 GWh in East and West/Services/Other respectively that was sold to Generation Bridge in December 2021

51

The table below represents the weather metrics for 2021 and 2020:
 Year ended
December 31,
Quarter ended
December 31,
Quarter ended September 30,Quarter ended
June 30,
Quarter ended
March 31,
Weather MetricsTexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
TexasEast
West/Services/Other(a)
2021 
CDDs(b)
2,960 1,275 1,877 386 91 185 1,589 784 1,134 899 362 521 86 38 37 
HDDs(b)
1,562 4,306 2,060 360 1,377 662 — 38 82 541 192 1,120 2,350 1,201 
2020
CDDs3,102 1,362 1,971 280 79 181 1,640 874 1,152 1,012 353 562 170 56 76 
HDDs1,501 4,268 1,939 634 1,517 763 72 70 634 178 791 2,045 994 
10-year average
CDDs3,090 1,297 1,924 281 85 157 1,690 818 1,159 1,003 356 557 116 38 51 
HDDs1,691 4,558 2,044 693 1,584 774 56 10 59 521 193 937 2,397 1,067 
(a) The West/Services/Other weather metrics are comprised of the average of the CDD and HDD regional results for the West - California and West - South Central regions
(b) National Oceanic and Atmospheric Administration-Climate Prediction Center - A Cooling Degree Day, or CDD, represents the number of degrees that the mean temperature for a particular day is above 65 degrees Fahrenheit in each region. A Heating Degree Day, or HDD, represents the number of degrees that the mean temperature for a particular day is below 65 degrees Fahrenheit in each region. The CDDs/HDDs for a period of time are calculated by adding the CDDs/HDDs for each day during the period

Winter Storm Uri
During the year ended December 31, 2018,2021, Winter Storm Uri's pre-tax financial impact to the Company repurchasedwas a loss of $380 million, which reflects the recovery of $689 million of cost of operations as a result of the expected proceeds from the Uplift Securitization. The following impacts are further discussed in the related sections below:
(In millions)
Gross margin - Texas$88 
Gross margin - East146 
Gross margin - West/Services/Other13 
    Total gross margin247 
Operations and maintenance expense(2)
Selling, general and administrative costs(29)
Provision for credit losses(596)
    Total impact to loss before income taxes$(380)
The Company continues to pursue additional mitigants including, but not limited to, customer bad debt mitigation, counterparty default recovery, and additional ERCOT default recovery.
52

Gross margin and economic gross margin
Gross margin increased $3.9 billion and economic gross margin increased $1.5 billion, both of which include intercompany sales, during the year ended December 31, 2021, compared to the same period in 2020. The detail by segment is as follows:
Texas
(In millions)
Higher gross margin due to Winter Storm Uri, primarily driven by hedging optimization, partially offset by the negative impact of an increase in unhedgeable ancillary and operating reserve demand curve, net of securitization proceeds of $689 million$88 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to increased volumes from the acquisition of Direct Energy in January 2021280 
Higher gross margin due to market optimization activities
Lower gross margin due to a 22% increase in overall average costs to serve the retail load, driven primarily by increases in power, ancillary, fuel costs and the effect of the current year Limestone Unit 1 extended forced outage, totaling $349 million, partially offset by higher net revenue primarily driven by increased net revenue rates as a result of changes in customer term, product and mix of $2.50 per MWh, or $156 million(193)
Lower net revenue due to a decrease in load of 834,000 MWhs from weather(72)
Lower net revenue due to attrition and customer mix(5)
Other
Increase in economic gross margin$113 
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges1,194 
Decrease in contract and emission credit amortization
Increase in depreciation and amortization(104)
Increase in gross margin$1,210 

East
(In millions)
Higher gross margin due to Winter Storm Uri, primarily driven by natural gas optimization during volatile pricing that occurred during the weather event$146 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to increased volumes from the acquisition of Direct Energy in January 2021, including $503 million from natural gas activity and $436 million from power activity939 
Higher business demand response gross margin primarily from the early settlement of capacity obligations in 2021 compared to the same period in 2020 of $63 million and higher volumes sold in 2021 of $10 million73 
Higher gross margin due to a lower of cost or market adjustment on oil inventory in 202029 
Lower gross margin from higher supply costs of $8.25 per MWh, or $78 million and lower volumes due to attrition, weather and customer mix of $45 million, partially offset by higher revenue of $3 per MWh, or $29 million(94)
Lower gross margin due to a 20% decrease in average realized pricing primarily at Midwest Generation(39)
Lower gross margin due to the sale of fossil generating assets to Generation Bridge in December 2021(16)
Lower gross margin from market optimization activities(5)
Increase in economic gross margin$1,033 
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges1,622 
Increase in contract amortization(54)
Increase in depreciation and amortization(200)
Increase in gross margin$2,401 

53

West/Services/Other
(In millions)
Higher gross margin due to Winter Storm Uri, driven by optimization during volatility in gas pricing$13 
The following explanations exclude the impact of Winter Storm Uri:
Higher gross margin due to the acquisition of Direct Energy in January 2021425 
Lower gross margin primarily at Cottonwood driven by an 83% increase in fuel cost, partially offset by a 41% increase in realized power prices.(31)
Lower gross margin primarily due to prior year MISO uplift payments resulting from out-of-market dispatch during Hurricane Laura(29)
Lower gross margin from generation outage insurance proceeds received in 2020 for forced outages in 2019, partially offset by Sunrise business interruption proceeds received in 2021 for forced outages in 2019(22)
Lower gross margin from market optimization activities(9)
Lower gross margin due to the sale of fossil generating assets to Generation Bridge in December 2021(7)
Other
Increase in economic gross margin$347 
Increase in mark-to-market for economic hedges primarily due to net unrealized gains/losses on open positions related to economic hedges19 
Increase in contract amortization(21)
Increase in depreciation and amortization(52)
Increase in gross margin$293 

Mark-to-market for Economic Hedging Activities
Mark-to-market for economic hedging activities includes asset-backed hedges that have not been designated as cash flow hedges. Total net mark-to-market results increased by $2.8 billion during the year ended December 31, 2021, compared to the same period in 2020.
The breakdown of gains and losses included in operating revenues and operating costs and expenses by segment was as follows:
Year Ended December 31, 2021
(In millions)TexasEastWest/Services/OtherEliminationsTotal
Mark-to-market results in operating revenues    
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges$— $(34)$(4)$(2)$(40)
Reversal of acquired (gain) positions related to economic hedges— (6)— — $(6)
Net unrealized (losses) on open positions related to economic hedges(3)(48)(82)15 (118)
Total mark-to-market (losses) in operating revenues$(3)$(88)$(86)$13 $(164)
Mark-to-market results in operating costs and expenses    
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges$(3)$— $— $$(1)
Reversal of acquired loss/(gain) positions related to economic hedges42 235 (15)— 262 
Net unrealized gains on open positions related to economic hedges949 1,568 117 (15)2,619 
Total mark-to-market gains in operating costs and expenses$988 $1,803 $102 $(13)$2,880 

54

Year Ended December 31, 2020
(In millions)TexasEastWest/Services/OtherEliminationsTotal
Mark-to-market results in operating revenues    
Reversal of previously recognized unrealized losses/(gains) on settled positions related to economic hedges$$33 $(7)$$31 
Net unrealized gains on open positions related to economic hedges55 64 
Total mark-to-market gains/(losses) in operating revenues$$88 $(3)$$95 
Mark-to-market results in operating costs and expenses    
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(87)$$— $(4)$(86)
Reversal of acquired loss positions related to economic hedges.— — 
Net unrealized (losses) on open positions related to economic hedges(126)(2)— (4)(132)
Total mark-to-market (losses)/gains in operating costs and expenses$(211)$$— $(8)$(214)
Mark-to-market results consist of unrealized gains and losses on contracts that are yet to be settled. The settlement of these transactions is reflected in the same revenue or cost caption as the items being hedged.
The reversals of acquired gain or loss positions were valued based upon the forward prices on the acquisition date.
For the year ended December 31, 2021 the $164 million loss in operating revenues from economic hedge positions was driven primarily by a decrease in the value of open positions as a result of increases in East and West/Services/Other power prices, as well as the reversal of previously recognized unrealized gains on contracts that settled during the period. The $2.9 billion gain in operating costs and expenses from economic hedge positions was driven primarily by an increase in the value of open positions as a result of increases in natural gas and power prices across all segments as well as the reversal of acquired contracts that settled during the year.
For the year ended December 31, 2020 the $95 million gain in operating revenues from economic hedge positions was driven primarily by an increase in the value of open positions as a result of decreases in New York capacity prices, as well as the reversal of previously recognized unrealized losses on contracts that settled during the period. The $214 million loss in operating costs and expenses from economic hedge positions was driven primarily by a decrease in the value of open positions as a result of decreases in ERCOT power prices and heat rate contraction, as well as the reversal of previously recognized unrealized gains on contracts that settled during the period.
In accordance with ASC 815, the following table represents the results of the Company's financial and physical trading of energy commodities for the years ended December 31, 2021 and 2020. The realized and unrealized financial and physical trading results are included in operating revenue. The Company's trading activities are subject to limits within the Company's Risk Management Policy.
 Year ended December 31,
(In millions)20212020
Trading gains/(losses) 
Realized$124 $41 
Unrealized(32)(5)
Total trading gains$92 $36 

Operations and Maintenance Expenses
Operations and maintenance expenses are comprised of the following:
(In millions)TexasEastWest/Services/OtherCorporateEliminationsTotal
Year Ended December 31, 2021$703 $452 $218 $$(5)$1,370 
Year Ended December 31, 2020651 371 104 (6)1,129 
55


Operations and maintenance expenses increased by $241 million for the year ended December 31, 2021 compared to the same period in 2020, due to the following:
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$257 
Increase in major maintenance primarily due to the duration and scope of planned and forced outages in Texas during 202127 
Increase in variable operation and maintenance expense at the PJM coal facilities associated with increased generation in 202123 
Increase driven by higher maintenance resulting from the impacts of Winter Storm Uri
Decrease driven by lower retail operations costs(29)
Decrease in lease expense primarily driven by the buyout of the Midwest Generation lease in 2020(16)
Decrease due to the sale of fossil generating assets to Generation Bridge in December 2021(11)
Decrease due to prior year suspended plant project and prior year reserves for obsolete inventory(9)
Other(3)
Increase in operations and maintenance expense$241 
Other Cost of Operations
Other Cost of operations are comprised of the following:
(In millions)TexasEastWest/Services/OtherTotal
Year Ended December 31, 2021$194 $129 $16 $339 
Year Ended December 31, 2020163 91 18 272 
Other cost of operations increased by $67 million for the year ended December 31, 2021 compared to the same period in 2020, due to the following:
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$83 
Decrease primarily due to ARO expense in 2020 at Jewett Mine and Joliet as a result of regulatory requirements(15)
Other(1)
Increase in other cost of operations$67 

Depreciation and Amortization
Depreciation and amortization expenses are comprised of the following:
(In millions)TexasEastWest/Services/OtherCorporateTotal
Year Ended December 31, 2021$331 $338 $88 $28 $785 
Year Ended December 31, 2020227 13836 34 435 
Depreciation and amortization expense increased by $350 million for the year ended December 31, 2021 compared to the same period in 2020, primarily due to amortization of acquired intangibles in connection with the acquisition of Direct Energy in January 2021.
Impairment Losses
During the year ended December 31, 2021, the Company recorded impairment losses of $544 million, of which $306 million was recorded in the second quarter related to the decline in capacity prices and the planned retirement of a significant portion of the PJM coal fleet, $213 million in the fourth quarter as a result of changes in the long-term outlook of the Joliet facility prompted by market conditions and an assessment of various alternatives for the long-term operational landscape of the facility including the impact of the CEJA in Illinois, and $25 million related to various other power plants. During the year ended December 31, 2020, the Company recorded impairment losses of $75 million primarily related to the Cottonwood facility and the Home Solar business. Refer to Item 15 — Note 11, Asset Impairments, to the Consolidated Financial Statements for further discussion.
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Selling, General and Administrative Costs
Selling, general and administrative costs are comprised of the following:
(In millions)TexasEastWest/Services/OtherCorporateTotal
Year Ended December 31, 2021$574 $472 $198 $49 $1,293 
Year Ended December 31, 2020467 260 56 27 810 
Selling, general and administrative costs increased by $483 million for the year ended December 31, 2021 compared to the same period in 2020, due to the following:
(In millions)
Increase due to the acquisition of Direct Energy in January 2021$460 
Increase due to Winter Storm Uri, including charitable giving, legal and other costs of $20 million and ERCOT default charges of $9 million29 
Increase due to higher consulting, service and insurance costs26 
Decrease due to lower employee costs(23)
Decrease due to the favorable resolution of a legal matter(15)
Other
Increase in selling, general and administrative costs$483 
Provision for Credit Losses
Provision for credit losses are comprised of the following:
(In millions)TexasEastWest/Services/OtherTotal
Year Ended December 31, 2021$678 $$12 $698 
Year Ended December 31, 202094 14 — 108 
Provision for credit losses increased by $590 million for the year ended December 31, 2021, compared to the same period in 2020, due to the following:
(In millions)
Increase due to Winter Storm Uri, including:
Increase of $403 million related to bilateral financial hedging risk
Increase of $126 million related to counterparty credit risk
Increase of $67 million related to ERCOT default shortfall payments
$596 
Decrease due to improved collections in the legacy brands, partially offset by the acquisition and integration of Direct Energy in January 2021(6)
Increase in provision for credit losses$590 
Acquisition-Related Transaction and Integration Costs
Acquisition-related transaction and integration costs increased by $70 million when compared to the same period in 2020. Acquisition-related transaction costs increased by $8 million, primarily related to the Direct Energy acquisition. Integration costs increased by $62 million, primarily related to employee costs, software costs and consulting services for the Direct Energy acquisition.
Gain on Sale of Assets
The gain on sale of assets of $247 million was recorded for the year ended December 31, 2021 includes a $210 million gain on the sale of 4,850 MW of fossil generating assets in December 2021, a $20 million gain on the sale of a deactivated site in November 2021, and a $17 million due to the sale of Agua Caliente in February 2021. The gain on the sale of assets of $3 million for the year ended December 31, 2020 was related to the sale of land and investments in January 2020, partially offset by the disposition of the Home Solar business.
Impairment Losses on Investments
During the year ended December 31, 2020, the Company recorded other-than-temporary impairment losses on the Company's investment in Petra Nova Parish Holdings of $18 million, as further described in Item 15 Note 11, Asset Impairments,to the Consolidated Financial Statements.
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Loss on Debt Extinguishment
A loss on debt extinguishment of $77 million was recorded for the year ended December 31, 2021, driven by the redemption of senior notes as further discussed in Item 15 — Note 13, Long-term Debt and Finance Leases, to the Consolidated Financial Statements. A loss on debt extinguishment of $9 million was recorded for the year ended December 31, 2020, driven by the debt extinguished in connection with the sale of Home Solar and the redemptions of the Indian River and Dunkirk bonds.
Interest Expense
Interest expense increased by $84 million for the year ended December 31, 2021 compared to the same period in 2020, primarily due to financings entered into in connection with the Direct Energy acquisition.

Income Tax Expense
For the year ended December 31, 2021, NRG recorded income tax expense of $672 million on pre-tax income of $2.9 billion. For the same period in 2020, NRG recorded an income tax expense of $251 million on pre-tax income of $761 million. The effective tax rate was 23.5% and 33.0% for the years ended December 31, 2021 and 2020, respectively.
For the year ended December 31, 2021, NRG's overall effective tax rate was higher than the federal statutory tax rate of 21% primarily due to state tax expense partially offset by tax benefits from the revaluation of state deferred tax assets, valuation allowance, and settlements of uncertain tax positions.
 Year Ended December 31,
(In millions, except effective income tax rate)20212020
Income from continuing operations before income taxes$2,859 $761 
Tax at federal statutory tax rate600 160 
Foreign rate differential(3)— 
State taxes111 18 
Deferred impact of state tax rate changes(10)
Changes in valuation allowance(29)24 
Permanent differences
Return to provision adjustments36 
Recognition of uncertain tax benefits(10)
Income tax expense$672 $251 
   Effective income tax rate23.5 %33.0 %
The effective income tax rate may vary from period to period depending on, among other factors, the geographic and business mix of earnings and losses and changes in valuation allowances in accordance with ASC 740, Income Taxes, or ASC 740. These factors and others, including the Company's history of pre-tax earnings and losses, are taken into account in assessing the ability to realize deferred tax assets.

Liquidity and Capital Resources
Liquidity Position
As of December 31, 2021 and 2020, NRG's liquidity, excluding collateral funds deposited by counterparties, was approximately $2.7 billion and $7.0 billion, respectively, comprised of the following:
 As of December 31,
(In millions)20212020
Cash and cash equivalents:$250 $3,905 
Restricted cash - operating
Restricted cash - reserves (a)
11 
Total265 3,911 
Total availability under Revolving Credit Facility and collective collateral facilities(b)
2,421 3,129 
Total liquidity, excluding collateral funds deposited by counterparties$2,686 $7,040 
(a)Includes reserves primarily for debt service, performance obligations and capital expenditures
(b)Total capacity of Revolving Credit Facility and collective collateral facilities was $5.9 billion and $4.0 billion as of December 31, 2021 and December 31, 2020, respectively

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As of December 31, 2021, total liquidity, excluding collateral funds deposited by counterparties, decreased by $4.4 billion. The decrease was primarily driven by the closing of the Direct Energy acquisition and the impact of Winter Storm Uri. Changes in cash and cash equivalent balances are further discussed under the heading Cash Flow Discussion. Cash and cash equivalents at December 31, 2021 were predominantly held in money market funds invested in treasury securities, treasury repurchase agreements or government agency debt.
Management believes that the Company's liquidity position and cash flows from operations will be adequate to finance operating and maintenance capital expenditures, to fund dividends to NRG's common stockholders, and to fund other liquidity commitments. Management continues to regularly monitor the Company's ability to finance the needs of its operating, financing and investing activity within the dictates of prudent balance sheet management.
Credit Ratings
On March 17, 2021, following Winter Storm Uri, Standard & Poor's placed NRG's issuer credit rating of BB+ on CreditWatch with negative implications. On May 12, 2021, Standard & Poor's affirmed NRG's issuer credit rating of BB+ with a stable outlook. On March 19, 2021, Moody's changed NRG's rating outlook from positive to stable. At the same time, Moody's affirmed NRG's corporate family rating of Ba1.
The following table summarizes the Company's current credit ratings:
S&PMoody's
NRG Energy, Inc.BB+ StableBa1 Stable
3.75% Senior Secured Notes, due 2024BBB-Baa3
2.00% Senior Secured Notes, due 2025BBB-Baa3
2.45% Senior Secured Notes, due 2027BBB-Baa3
6.625% Senior Notes, due 2027BB+Ba2
5.75% Senior Notes, due 2028BB+Ba2
3.375% Senior Notes, due 2029BB+Ba2
4.45% Senior Secured Notes, due 2029BBB-Baa3
5.25% Senior Notes, due 2029BB+Ba2
3.625% Senior Notes, due 2031BB+Ba2
3.875% Senior Notes, due 2032BB+Ba2
Revolving Credit Facility, due 2024BBB-Baa3

Liquidity
The principal sources of liquidity for NRG's operating and capital expenditures are expected to be derived from cash on hand, cash flows from operations and financing arrangements. As described in Item 15 — Note 13, Long-term Debt and Finance Leases, to the Consolidated Financial Statements, the Company's financing arrangements consist mainly of the Senior Notes, Convertible Senior Notes, Senior Secured First Lien Notes, Revolving Credit Facility, and tax-exempt bonds.
The Company's requirements for liquidity and capital resources, other than for operating its facilities, can generally be categorized by the following: (i) market operations activities; (ii) debt service obligations, as described more fully in Item 15 — Note 13, Long-term Debt and Finance Leases, to the Consolidated Financial Statements; (iii) capital expenditures, including maintenance, repowering, development, and environmental; and (iv) allocations in connection with acquisition opportunities, debt repayments, share repurchases and dividend payments to stockholders, as described in Item 15 — Note 16, Capital Structure, to the Consolidated Financial Statements.
Direct Energy Acquisition
On January 5, 2021, the Company acquired Direct Energy, which had been a North American subsidiary of Centrica. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces.
The Company paid an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment of $77 million. The Company funded the purchase price using a combination of $715 million of cash on hand, $166 million from a draw on its Revolving Credit Facility (of which $107 million was used to fund acquisition costs and financing fees that are not included in the aggregate purchase price above) as well as approximately $2.9 billion in secured and unsecured corporate debt issued in December 2020. The final purchase price adjustment resulted in additional payment of $22 million, which was paid to Centrica in December 2021.
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Collateral Facility Increases
The following table presents increases to the Company's liquidity and collateral facilities in connection with the Direct Energy acquisition:
(In millions)
Available on Acquisition Closing Date
Revolving Credit Facility commitment increase$802 
Revolving Credit Facility new tranche273 
Facility agreement in connection with the sale of pre-capitalized trust securities874 
Available as of December 31, 2020
Credit default swap facility150 
Revolving accounts receivable financing facility750 
Repurchase facility75 
Bilateral letter of credit facilities475 
Total Increases to Liquidity and Collateral Facilities$3,399 
Planned Debt Reduction
In light of the impact of Winter Storm Uri, the Company's deleveraging program will extend to 2023. The Company remains committed to maintaining a strong balance sheet and continues to work to achieve investment grade credit metrics.
Issuance of 2032 Senior Notes
On August 23, 2021, the Company issued $1.1 billion of aggregate principal amount at par of 3.875% senior notes due 2032 (the "2032 Senior Notes"). The 2032 Senior Notes are senior unsecured obligations of NRG and are guaranteed by certain of its subsidiaries. The 2032 Senior Notes were issued under NRG's Sustainability-Linked Bond Framework, which sets out certain sustainability targets, including reducing greenhouse gas emissions. Failure to meet such sustainability targets will result in a 25 basis point increase to the interest rate payable on the 2032 Senior Notes from and including August 15, 2026.
Senior Note Redemptions
During the year ended December 31, 2021, the Company redeemed $1.9 billion in aggregate principal of its Senior Notes for $1.9 billion using the proceeds of the 2032 Senior Notes and cash on hand. In connection with the redemptions, a $77 million loss on debt extinguishment was recorded.
Receivables Facility
On July 26, 2021, NRG Receivables LLC, a wholly-owned indirect subsidiary of the Company, renewed its existing accounts receivable securitized borrowings facility (the "Receivables Facility") to, among others, (i) increase the facility size to $800 million, (ii) extend the maturity date until July 26, 2022, (iii) make certain adjustments to the pool of receivables through the Receivables Facility and certain related covenants, and (iv) provide for revised language relating to interest determination based on SOFR in case of a LIBOR cessation or the occurrence of certain other trigger events. As of December 31, 2021, there were no outstanding borrowings and there were $400 million in letters of credit issued under the Receivables Facility.
Repurchase Facility
On July 26, 2021, the Company renewed its existing uncommitted repurchase facility ("Repurchase Facility") to, among other things, (i) extend the maturity date to July 26, 2022 and (ii) provide for revised language relating to interest determination based on SOFR in case of a LIBOR cessation or the occurrence of certain other trigger events. On February 9, 2022, the Company entered into amendments to its existing Repurchase Facility to, among other things, (i) increase the size of the facility from $75 million to $150 million and (ii) replace LIBOR with term SOFR as the benchmark for the pricing rate. The Repurchase Facility has no commitment fee and borrowings will be drawn at SOFR + 1.30%. As of December 31, 2021, there were no outstanding borrowings under the Repurchase Facility.
Sale of 4.8 GW of Fossil Generation Assets
On December 1, 2021, the Company closed the previously announced sale of approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. At Closing, NRG received $623 million of net proceeds, after working capital and other adjustments, including a deduction for cash flows generated of approximately $11 million per month from the beginning of the year until the closing of the transaction, in lieu of
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cash flows generated during the year. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
Sale of Agua Caliente
On February 3, 2021, the Company closed on the sale of its 35% ownership in the Agua Caliente solar project to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including cash disposed of $7 million.
CARES Act
On March 27, 2020, the U.S. government enacted the CARES Act, which provides, among other things: (i) the option to defer payments of certain 2019 employer payroll taxes incurred after the date of enactment; and (ii) allows NOLs from tax years 2018, 2019, and 2020 to be carried back five years. The total benefit to the Company due to the CARES Act was $35 million. Of this amount, $13 million was paid to social security in 2021 and $13 million will be payable in 2022.
Pension Plan Contribution
The American Rescue Plan Act ("ARPA") was enacted on March 11, 2021 to provide economic relief related to the COVID-19 pandemic. ARPA provided pension funding relief for single employer plans, among other provisions. As a result, NRG reduced its 2021 planned cash contribution by approximately $23 million.
Pension and Other postretirement benefits minimum funding requirements
As of December 31, 2021, the Company does not have estimated minimum pension contributions required under the Pension Protection Act of 2006 for the next 5 years. As of December 31, 2021, the Company’s estimated Other postretirement benefits minimum funding requirements for the next 5 years were $33 million, of which $7 million are required to be made within the next 12 months. These amounts represent estimates based on assumptions that are subject to change. For further discussion, see Item 15 — Note 15, Benefit Plans and Other Postretirement Benefits, to the Consolidated Financial Statements.
Debt Service Obligations
Principal payments on debt and finance leases as of December 31, 2021 are due in the following periods:
(In millions)
Description20222023202420252026ThereafterTotal
 Recourse Debt:     
Senior notes, due 2027$— $— $— $— $— $375 $375 
Senior notes, due 2028— — — — — 821 821 
Senior notes, due 2029— — — — — 733 733 
Senior notes, due 2029— — — — — 500 500 
Senior notes, due 2031— — — — — 1,030 1,030 
Senior Notes, due 2032— — — — — 1,100 1,100 
Convertible Senior Notes, due 2048— — — — — 575 575 
Senior Secured First Lien Notes, due 2024— — 600 — — — 600 
Senior Secured First Lien Notes, due 2025— — — 500 — — 500 
Senior Secured First Lien Notes, due 2027— — — — — 900 900 
Senior Secured First Lien Notes, due 2029— — — — — 500 500 
Tax-exempt bonds— — — — — 466 466 
Subtotal Recourse Debt— — 600 500 — 7,000 8,100 
Finance Leases:
Finance leases— 13 
      Subtotal Finance Leases— 13 
Total Debt and Finance Leases$$$603 $502 $— $7,001 $8,113 
Interest Payments$385 $383 $363 $352 $334 $1,224 $3,041 
For further discussion, see Item 15 — Note 13, Long-term Debt and Finance Leases.
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Market Operations
The Company's market operations activities require a significant amount of liquidity and capital resources. These liquidity requirements are primarily driven by: (i) margin and collateral posted with counterparties; (ii) margin and collateral required to participate in physical markets and commodity exchanges; (iii) timing of disbursements and receipts (e.g. buying fuel before receiving energy revenues); and (iv) initial collateral for large structured transactions. As of December 31, 2021, market operations had total cash collateral outstanding of $291 million and $3.5 billion outstanding in letters of credit to third parties primarily to support its market activities. As of December 31, 2021, total funds deposited by counterparties were $845 million in cash and $429 million of letters of credit.
The Company has entered into long-term contractual arrangements to procure certain fuel and transportation services for the Company's generation assets. As of December 31, 2021, the Company had minimum payment obligations under such outstanding agreements of $378 million, with $122 million payable within the next 12 months. Additionally, the Company has long-term contractual commitments related to electricity and natural gas products, including power purchases, gas transportation and storage of various quantities and durations, and renewable purchased power agreements under PPAs with third-party project developers, which are accounted for as NPNS. As of December 31, 2021, the Company had minimum purchased energy commitments of $5.0 billion, with $1.6 billion payable within the next 12 months. For further discussion, see Item 15 — Note 23, Commitments and Contingencies.
Future liquidity requirements may change based on the Company's hedging activities and structures, fuel purchases, and future market conditions, including forward prices for energy and fuel and market volatility. In addition, liquidity requirements are dependent on the Company's credit ratings and general perception of its creditworthiness.
First Lien Structure
NRG has granted first liens to certain counterparties on a substantial portion of the Company's assets, subject to various exclusions including NRG's assets that have project-level financing and the assets of certain non-guarantor subsidiaries, to reduce the amount of cash collateral and letters of credit that it would otherwise be required to post from time to time to support its obligations under out-of-the-money hedge agreements for forward sales of power or MWh equivalents. The first lien program does not limit the volume that can be hedged or the value of underlying out-of-the-money positions. The first lien program also does not require NRG to post collateral above any threshold amount of exposure. The first lien structure is not subject to unwind or termination upon a ratings downgrade of a counterparty and has no stated maturity date.
The Company's first lien counterparties may have a claim on its assets to the extent market prices exceed the hedged prices. As of December 31, 2021, all hedges under the first liens were out-of-the-money on a counterparty aggregate basis.
The following table summarizes the amount of MW hedged against the Company's coal and nuclear assets and as a percentage relative to the Company's coal and nuclear capacity under the first lien structure as of December 31, 2021:

Equivalent Net Sales Secured by First Lien Structure (a)
20222023
In MW653738
As a percentage of total net coal and nuclear capacity (b)
15%17%
(a)Equivalent Net Sales include natural gas swaps converted using a weighted average heat rate by region
(b)Net coal and nuclear capacity represents 80% of the Company's total coal and nuclear assets eligible under the first lien, which excludes coal assets acquired in the Midwest Generation acquisition
Capital Expenditures
The following table summarizes the Company's capital expenditures for maintenance, environmental, and growth investments for the year ended December 31, 2021:
(In millions)MaintenanceEnvironmental
Growth Investments(a)
Total
Texas$(127)$(1)$(25)$(153)
East(23)(1)(26)(50)
West/Services/Other(21)— — (21)
Corporate(4)— (41)(45)
Total cash capital expenditures for 2021(175)(2)(92)(269)
 Investments— — (47)(47)
Total capital expenditures and investments$(175)$(2)$(139)$(316)
(a)Includes other investments, acquisitions, digital NRG and integration projects
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Growth investments in East for the year ended December 31, 2021 include the Astoria generating facility, for which the Company has proposed to replace existing units with a single, new state-of-the-art Simple Cycle Combustion Turbine having a total generating capacity of 35,234,664 shares under these programs437 MW. On October 27, 2021, the NYSDEC Staff denied the Company's application for $1.25 billion,an air permit. On November 26, 2021, Astoria Gas Turbine Power LLC filed a Request for Adjudicatory Hearing on the NYSDEC's denial. To date, the Company has spent approximately $42 million on the Astoria project. Additionally, included in Investments are expenditures for Encina site improvements classified as ARO payments. Demolition of Encina is underway and is expected to be completed in the remaining $250 million was repurchasedfirst half of 2022. The Company expects to begin marketing the site in 2022.

Environmental Capital Expenditures Estimate
NRG estimates that environmental capital expenditures from 2022 through 2026 required to comply with environmental laws will be approximately $56 million. The largest component is the cost of complying with ELG at our coal units in Texas.
The table below summarizes the status of NRG's coal fleet with respect to air quality controls. NRG uses an integrated approach to fuels, controls and emissions markets to meet environmental requirements.
SO2
NOx
MercuryParticulate
UnitsStateControl EquipmentInstall DateControl EquipmentInstall DateControl EquipmentInstall DateControl EquipmentInstall Date
Indian River 4DECDS2011LNBOFA/SCR1999/2011ACI/CDS/FF2008/2011ESP/FF1980/2011
Limestone 1-2TXFGD1985-86LNBOFA2002/2003ACI2015ESP1985-1986
Powerton 5ILDSI2016OFA/SNCR2003/2012ACI2009ESP/upgrade1973/2016
Powerton 6ILDSI2014OFA/SNCR2002/2012ACI2009ESP/upgrade1976/2014
W.A. Parish 5, 6, 7TXFF co-benefit1988SCR2004ACI2015FF1988
W.A. Parish 8TXFGD1982SCR2004ACI2015FF1988
Waukegan 7ILDSI2014LNBOFA2002ACI2008ESP/upgrade1958/2002, 2014
Waukegan 8ILDSI2015LNBOFA1999ACI2008ESP/upgrade1962/1999, 2015
Will County 4ILDSI2017LNBOFA1999,2000ACI2009ESP/upgrade
1963,72/
2000
ACI -  Activated Carbon Injection
CDS - Circulating Dry Scrubber
DSI - Dry Sorbent Injection with Trona
ESP - Electrostatic Precipitator
FGD - Flue Gas Desulfurization (wet)

FF- Fabric Filter
LNBOFA - Low NOx Burner with Overfire Air
OFA - Overfire Air
SCR - Selective Catalytic Reduction
SNCR - Selective Non-Catalytic Reduction
The following table summarizes the estimated environmental capital expenditures by February 28, 2019. The average price paid per share for the $1.5 billion share repurchase was $36.24. year:
(In millions)Total
2022$
2023
202422 
202522 
2026
Total$56 

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Share Repurchases
In addition,December 2021, the Company's board of directors authorized the Company to repurchase $1.0 billion of its common stock. Through December 31, 2021, the Company completed $53 million of share repurchases at an average price of $40.22 per share, including $9 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuances. Through February 201924, 2022, an additional $1 billion$82 million of share repurchase programrepurchases were executed at an average price of $40.26 per share, including $6 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuances. See Item 15 - Note 16, Capital Structure, to be executed in 2019. See Note 14, Capital Structure,the Consolidated Financial Statements for additional discussion.
Targeted Debt ReductionDividend Increase
In the first quarter of 2021, NRG increased the annual dividend to $1.30 from $1.20 per share. The Company returned $320 million of capital to shareholders in the year ended 2021 through a $1.30 dividend per common share. In 2022, NRG further increased the annual dividend to $1.40 per share, representing an 8% increase from 2021. The Company expects to target an annual dividend growth rate of 7-9% per share in subsequent years.
On January 21, 2022, NRG declared a quarterly dividend on the Company's common stock of $0.35 per share, or $1.40 per share on an annualized basis, payable on February 15, 2022, to stockholders of record as of February 1, 2022. The Company's common stock dividends are subject to available capital, market conditions, and compliance with associated laws and regulations.
Additional Material Cash Requirements Not Discussed Above
Operating leases The Company leases generating facilities, land, office and equipment, railcars, fleet vehicles and storefront space at retail stores. As of December 31, 2021, the Company had lease payment obligations of $372 million, of which $96 million is payable within the next 12 months. For further discussion, see Item 15 — Note 10, Leases.
Other liabilities — Other liabilities includes water right agreements, service and maintenance agreements, stadium naming rights, stadium sponsorships, LTSA commitments and other contractual obligations. As of December 31, 2021, the Company had total of $210 million under such commitments,of which $41 million are payable within the next 12 months.
Contingent obligations for guarantees — NRG and its subsidiaries enter into various contracts that include indemnifications and guarantee provisions as a routine part of the Company’s business activities. For further discussion, see Item 15 —Note 27, Guarantees.
Obligations Arising Out of a Variable Interest in an Unconsolidated Entity
Variable interest in Equity investments — As of December 31, 2021, NRG has several investments with an ownership interest percentage of 50% or less in energy and energy-related entities that are accounted for under the equity method of accounting. Ivanpah is considered a variable interest entity for which NRG is revising its balance sheet target ratios in ordernot the primary beneficiary.
NRG's pro-rata share of non-recourse debt held by unconsolidated affiliates was approximately $535 million as of December 31, 2021. This indebtedness may restrict the ability of these subsidiaries to further strengthen its balance sheet. In orderissue dividends or distributions to achieveNRG. See also Item 15 — Note 17, Investments Accounted for by the revised balance sheet targets,Equity Method and Variable Interest Entities, to the Company is reserving up to $600 million in 2019 capital which may be allocated toward debt reduction.Consolidated Financial Statements for additional discussion.
Small Book Acquisitions
During 2018, the Company has acquired several books of customers totaling approximately 115,000 customers, along with brand names, for $44 million.
Petra Nova Debt Repayment
NRG has guaranteed up to $124 million of Petra Nova's $248 million project debt to its lenders for purposes of debt repayment in the event Petra Nova is unable to meet its projected debt coverage covenant as stipulated in its financing agreements. The covenant test and possible repayment, or a portion thereof, are scheduled to occur in the third quarter of 2019. Once such payment is made, NRG's guarantee will terminate.


Cash Flow Discussion
20182021 compared to 20172020
The following table reflects the changes in cash flows for the comparative years:
Year ended December 31,
(In millions)20212020Change
Net cash provided by operating activities$493 $1,837 $(1,344)
Net cash used by investing activities(3,039)(494)(2,545)
Net cash (used)/provided by financing activities(272)2,204 (2,476)
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 Year ended December 31,
(In millions)2018 2017 Change
Net cash provided by operating activities$1,377
 $1,610
 $(233)
Net cash used by investing activities(205) (639) 434
Net cash used by financing activities(1,526) (1,138) (388)
Net Cash (Used)/Provided By Operating Activities
Changes to net cash (used)/provided by operating activities were driven by:
(In millions)
Decrease in working capital related to accounts receivable primarily driven by milder weather in 2020, the impact of Winter Storm Uri and additional early settlement of capacity obligations in 2021$(1,232)
Decrease in operating income adjusted for other non-cash items(1,235)
Changes in cash collateral in support of risk management activities due to change in commodity prices670 
Increase in working capital related to accounts payable primarily driven by increases in gas purchases and bilateral physical settlements driven by price and volume in ERCOT532 
Decrease in working capital related to inventory due to replenishing natural gas inventory at significantly higher prices(88)
Other changes in working capital
$(1,344)
 (In millions)
Change in cash from discontinued operations$(380)
Decrease in inventory during 2017 as a result of initiatives related to the Transformation Plan to reduce inventory levels(112)
GenOn settlement payment in July 2018, net of insurance proceeds received in December 2018(63)
Changes in cash collateral in support of risk management activities due to changes in commodity prices(25)
Increase in operating income adjusted for non-cash items323
Increase in working capital in 2018 as a result of initiatives related to the Transformation Plan to increase working capital24
 $(233)
Net Cash Used(Used)/Provided By Investing Activities
Changes to net cash used(used)/provided by investing activities were driven by:
 (In millions)
Increase in proceeds from sale of assets and sale of discontinued operations$1,134
Change in cash from discontinued operations254
Decrease in net investments in unconsolidated affiliates18
Cash removed due to deconsolidation of Agua Caliente and Ivanpah in 2018(268)
Increase in cash paid for acquisitions in 2018, primarily for the XOOM acquisition(229)
Decrease in net distributions received from discontinued operations(210)
Increase in capital expenditures for growth investments and maintenance in generation assets(134)
Increase in investments in nuclear decommissioning trust net of proceeds from sales(48)
Decrease in sales of emissions, net of purchases(47)
Decrease in insurance proceeds received in 2018(22)
Decrease in cash grants received in 2018(8)
Other(6)
 $434

(In millions)
Increase in cash paid for acquisitions of assets primarily for Direct Energy$(3,275)
Increase in proceeds from sale of assets primarily due to the fossil generating assets and Agua Caliente749 
Decrease in capital expenditures(39)
Increase in proceeds from sales of investments in nuclear decommissioning trust fund securities, net of purchases12 
Increase in sales of emissions allowances, net of purchases10 
Other(2)
$(2,545)
Net Cash Used(Used)/Provided By Financing Activities
Changes in net cash used(used)/provided by financing activities were driven by:
(In millions)
Decrease in proceeds from issuance of long-term debt$(2,134)
Increase in payments of long-term debt(1,526)
Increase in net receipts from settlement of acquired derivatives945 
Decrease in payments for share repurchase activity181 
Increase in proceeds from Revolving Credit Facility and Receivables Securitization Facilities83 
Increase in payments of dividends to common stockholders(24)
Other(1)
$(2,476)
 (In millions)
Repurchases of common stock in 2018, from open market repurchases and the ASR agreement$(1,250)
Decrease in proceeds from issuance of long-term debt(68)
Change in cash from discontinued operations640
Decrease in payments for short and long-term debt150
Decrease in notes issued to affiliates99
Increase in cash received from issuance of stock due to exercise of employee share-based compensation21
Decrease in net distributions paid to noncontrolling interests from subsidiaries14
Other6
 $(388)


2017 compared to 2016
The following table reflects the changes in cash flows for the comparative years:
 Year ended December 31,
(In millions)2017 2016 Change
Net cash provided by operating activities$1,610
 $1,908
 $(298)
Net cash used by investing activities(639) (757) 118
Net cash used by financing activities(1,138) (768) (370)
Net Cash Provided By Operating Activities
Changes to net cash provided by operating activities were driven by:
 (In millions)
Changes in cash collateral in support of risk management activities due to changes in commodity prices$(476)
Other changes in working capital(121)
Decrease in operating income adjusted for non-cash items(67)
Decrease in inventory as a result of initiatives related to the Transformation Plan to reduce inventory levels in 2017 as compared to 201683
Change in cash from discontinued operations283
 $(298)

Net Cash Used By Investing Activities
Changes to net cash used by investing activities were driven by:
 (In millions)
Decrease in capital expenditures in 2017$290
Increase in proceeds from sale of assets189
Increase due to net distributions received from discontinued operations208
Increase in sales of emissions, net of purchases67
Increase in investments in nuclear decommissioning trust net of proceeds from sales30
Change in cash from discontinued operations, primarily due to increased capital expenditures in 2017 and asset sales in 2016(591)
Decrease in cash grants received in 2017(28)
Increase due to net contributions to unconsolidated affiliates(24)
Other(23)
 $118
Net Cash Used By Financing Activities
Changes in net cash used by financing activities were driven by:
 (In millions)
Decrease in payments for short and long-term debt primarily due to repurchases of Senior Notes in 2016$3,262
Change due to repurchase of preferred stock in 2016226
Decrease in debt extinguishment costs79
Decrease in deferred debt issuance costs43
Decrease in payment of dividends, due to the annualized dividend rate being reduced from $0.58/share to $0.12/share in the first quarter of 201638
Decrease in borrowings primarily related to Agua Caliente borrowings in 2016(3,234)
Change in cash from discontinued operations(652)
Decrease due to payment notes issued to affiliates in 2017(125)
Other(7)
 $(370)


NOLs, Deferred Tax Assets and Uncertain Tax Position Implications under ASC 740
As of For the year ended December 31, 2018,2021, the Company had domestic pre-tax book income of $468 million$2.8 billion and a foreign pre-tax book lossincome of $1$100 million. For the year ended December 31, 2018,2021, the Company generated an NOLutilized U.S. federal NOLs of $8.0$1.6 billion due to a current year taxable loss.income. As of December 31, 2018,2021, the Company has cumulative domesticU.S. federal NOL carryforwards of $10.7$8.4 billion, of which $11 million were generated prior to Tax Cuts and Jobs Act and will begin expiring in 2031 and cumulative state NOL carryforwards of $5.6 billion.$5.2 billion for financial statement purposes. NRG also has cumulative foreign NOL carryforwards of $213$383 million, which do not have an expiration date. In addition to the above NOLs, NRG has a $442$20 million indefinite carryforward for interest deductions, as well as $381$384 million of tax credits to be utilized in future years. As a result of the Company's tax position, including the benefitutilization of $9.6 billion of tax lossesfederal and worthless stock deduction upon GenOn emerging from bankruptcy,state NOLs, and based on current forecasts, the Company anticipates income tax payments, primarily due to federal, state and localforeign jurisdictions, of up to $20$58 million in 2019.2022.
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The Company has recorded short-term and long-term receivables of $35 million and $34 million, respectively, representing refundable AMT credits from the IRS, which are anticipated to be received from 2019 through 2022 pursuant to the 50% annual limitation as enacted by the Tax Act upon repeal of corporate AMT effective January 1, 2018. Of this amount, short-term and long-term payables of $11 million each are due to GenOn for their share of minimum tax credits.
In addition to these amounts, the Company has $26$13 million of tax effected uncertain federal and state tax benefits for which the Company has recorded a non-current tax liability of $30$14 million (including accrued interest) until such final resolution with the related taxing authority.
The Company is no longer subject to U.S. federal income tax examinations for years prior to 2015.2018. With few exceptions, state and localCanadian income tax examinations are no longer open for years before 2010.2013.


Off-Balance Sheet ArrangementsGuarantor Financial Information
Obligations under Certain Guarantee ContractsAs of December 31, 2021, the Company's outstanding registered senior notes consisted of $375 million of the 2027 Senior Notes and $821 million of the 2028 Senior Notes, as shown in Note 13, Long-term Debt and Finance Leases. These Senior Notes are guaranteed by certain of NRG's current and future 100% owned domestic subsidiaries, or guarantor subsidiaries (the “Guarantors”). See Exhibit 22.1 for a listing of the Guarantors. These guarantees are both joint and several.
NRG conducts much of its business through and certainderives much of its income from its subsidiaries. Therefore, the Company's ability to make required payments with respect to its indebtedness and other obligations depends on the financial results and condition of its subsidiaries enter into guarantee arrangements in the normal course of businessand NRG's ability to facilitate commercial transactions with third parties. These arrangements include financial and performance guarantees, stand-by letters of credit, debt guarantees, surety bonds and indemnifications. See also Item 15 — Note 25 Guarantees, to the Consolidated Financial Statements for additional discussion.
Retained or Contingent Interests
NRG does not have any material retained or contingent interests in assets transferred to an unconsolidated entity.
Obligations Arising Out of a Variable Interest in an Unconsolidated Entity
Variable interest in Equity investments — As of December 31, 2018, NRG has several investments with an ownership interest percentage of 50% or less in energy and energy-related entities thatreceive funds from its subsidiaries. There are accounted for under the equity method of accounting. One of these investments is considered a variable interest entity for which NRG is not the primary beneficiary.
NRG's pro-rata share of non-recourse debt held by unconsolidated affiliates was approximately $992 million as of December 31, 2018. This indebtedness may restrictno restrictions on the ability of these subsidiariesany of the Guarantors to issue dividends or distributionstransfer funds to NRG. See also Item 15 — Note 15, Investments Accounted for byOther subsidiaries of the Equity MethodCompany do not guarantee the registered debt securities of either NRG Energy, Inc. or the Guarantors (such subsidiaries are referred to as the “Non-Guarantors”). The Non-Guarantors include all of NRG's foreign subsidiaries and Variable Interest Entities, tocertain domestic subsidiaries.
The tables below present summarized financial information of NRG Energy, Inc. and the Consolidated Financial Statements for additional discussion.Guarantors in accordance with Rule 3-10 under the SEC's Regulation S-X. The financial information may not necessarily be indicative of results of operations or financial position of NRG Energy, Inc. and the Guarantors in accordance with U.S. GAAP.

Contractual Obligations and Commercial Commitments
NRG has a variety of contractual obligations and other commercial commitments that represent prospective cash requirements in addition to the Company's capital expenditure programs. The following tables summarize NRG's contractual obligations and contingent obligations for guarantees. See also Item 15 — Note 11, Debt and Capital Leases, Note 21, Commitments and Contingencies, and Note 25, Guarantees, totable presents the Consolidated Financial Statements for additional discussion.summarized statement of operations:
 By Remaining Maturity at December 31,
 2018  
Contractual Cash Obligations
Under
1 Year
 1-3 Years 3-5 Years 
Over
5 Years
 
Total (a)
 2017 Total
 (In millions)
Long-term debt (including estimated interest)$464
 $807
 $2,349
 $6,520
 $10,140
 $13,895
Capital lease obligations (including estimated interest)
 1
 
 
 1
 5
Operating leases61
 102
 91
 317
 571
 675
Fuel purchase and transportation obligations227
 278
 129
 209
 843
 1,335
Fixed purchased power commitments30
 25
 12
 1
 68
 68
Pension minimum funding requirement (b)
39
 53
 82
 79
 253
 205
Other postretirement benefits minimum funding requirement (c)
7
 13
 12
 25
 57
 74
Other liabilities (d)
32
 62
 43
 144
 281
 296
Total$860
 $1,341
 $2,718
 $7,295
 $12,214
 $16,553
(a)(In millions)
Excludes $26 million non-current payable relating to NRG's uncertain tax benefits under ASC 740 asFor the period of payment cannot be reasonably estimated. Also excludes $679 million of asset retirement obligations which are discussed in Item 15 — Note 12 , Asset Retirement Obligations, to the Consolidated Financial StatementsYear Ended December 31, 2021(a)
Operating revenues$23,679 
Operating income3,753 
Total other expense(467)
Income from continuing operations before income taxes3,286 
Net Income2,633 
(a)Intercompany transactions with Non-Guarantors include operating revenue of $42 million, cost of operations of $(235) million and selling, general and administrative of $108 million
The following table presents the summarized balance sheet information:
(b)(In millions)These amounts represent the Company's estimated minimum pension contributions required under the Pension Protection Act of 2006. These amounts represent estimates that are based on assumptions that are subject to changeDecember 31, 2021
Current assets(a)
$9,399 
(c)Property, plant and equipment, netThese amounts represent estimates that are based on assumptions that are subject to change. The minimum required contribution for years after 2027 are currently not available
1,324 
(d)Non-current assetsIncludes water right agreements, service and maintenance agreements, stadium naming rights, LTSA commitments and other contractual obligations
 By Remaining Maturity at December 31,
 2018  
Guarantees
Under
1 Year
 1-3 Years 3-5 Years 
Over
5 Years
 Total 2017 Total
 (In millions)
Letters of credit and surety bonds(a)(b)
$1,138
 $79
 $
 $36
 $1,253
 $1,003
Asset sales guarantee obligations
 4
 257
 532
 793
 312
Other guarantees
 105
 
 616
 721
 645
Total guarantees$1,138
 $188
 $257
 $1,184
 $2,767
 $1,960
11,569 
Current liabilities(a)
As of December 31, 2017 excludes $92 million of letters of credit issued under the intercompany revolving credit agreement between NRG and GenOn
7,590 
(b)Non-current liabilitiesDecember 31, 2018 includes $32 million of letter of credit and surety bonds for the benefit of GenOn where NRG holds cash or letter of credit to back stop the liability11,195 


(a)Includes intercompany receivables of $86 million and intercompany payables of $50 million due from Non-Guarantors


Fair Value of Derivative Instruments
NRG may enter into power purchase and sales contracts, fuel purchase contracts and other energy-related financial instruments to mitigate variability in earnings due to fluctuations in spot market prices and to hedge fuel requirements at generation facilitiespower plants or retail load obligations. In addition, in order to mitigate interestforeign exchange rate risk primarily associated with the issuancepurchase of USD denominated natural gas for the Company's variable rate debt,Canadian business, NRG enters into interest rate swapforeign exchange contract agreements.
NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy. These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative financial instruments are recognized in earnings.
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The tables below disclose the activities that include both exchange and non-exchange traded contracts accounted for at fair value in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820. Specifically, these tables disaggregate realized and unrealized changes in fair value; disaggregate estimated fair values at December 31, 2018,2021, based on their level within the fair value hierarchy defined in ASC 820; and indicate the maturities of contracts at December 31, 2018.2021. For a full discussion of the Company's valuation methodology of its contracts, see Derivative Fair Value Measurements in Item 15 — Note 4, 5, Fair Value of Financial Instruments, to the Consolidated Financial Statements.
Derivative Activity Gains/(Losses)(In millions)
Fair value of contracts as of December 31, 2017$103
Contracts realized or otherwise settled during the period(99)
Contracts acquired during the period11
Changes in fair value89
Fair value of contracts as of December 31, 2018$104
Derivative Activity (Losses)/Gains(In millions)
Fair value of contracts as of December 31, 2020$(63)
Contracts realized or otherwise settled during the period190 
Contracts acquired from Direct Energy(283)
Changes in fair value2,497 
Fair value of contracts as of December 31, 2021$2,341 
Fair Value of Contracts as of December 31, 2021
Fair Value of Contracts as of December 31, 2018
Maturity  
Fair value hierarchy (Losses)/Gains1 Year or Less Greater Than 1 Year to 3 Years Greater Than 3 Years to 5 Years 
Greater Than
5 Years
 
Total Fair
Value
(In millions)
(In millions)(In millions)Maturity
Fair value hierarchy GainsFair value hierarchy Gains1 Year or LessGreater Than 1 Year to 3 YearsGreater Than 3 Years to 5 Years
Greater Than
5 Years
Total Fair
Value
Level 1$(58) $(25) $(4) $
 $(87)Level 1$134 $192 $23 $$355 
Level 2106
 79
 (1) (13) 171
Level 2941 645 82 25 1,693 
Level 343
 (1) (4) (18) 20
Level 3151 82 16 44 293 
Total$91
 $53
 $(9) $(31) $104
Total$1,226 $919 $121 $75 $2,341 
The Company has elected to disclose derivative assets and liabilities on a trade-by-trade basis and does not offset amounts at the counterparty master agreement level. Also, collateral received or posted on the Company's derivative assets or liabilities are recorded on a separate line item on the balance sheet. Consequently, the magnitude of the changes in individual current and non-current derivative assets or liabilities is higher than the underlying credit and market risk of the Company's portfolio. As discussed in Item 7A — Quantitative and Qualitative Disclosures About Market Risk, Commodity Price Risk, NRG measures the sensitivity of the Company's portfolio to potential changes in market prices using VaR, a statistical model which attempts to predict risk of loss based on market price and volatility. NRG's risk management policy places a limit on one-day holding period VaR, which limits the Company's net open position. As the Company's trade-by-trade derivative accounting results in a gross-up of the Company's derivative assets and liabilities, the net derivative assets and liability position is a better indicator of NRG's hedging activity. As of December 31, 2018,2021, NRG's net derivative asset was $104 million,$2.3 billion, an increase to total fair value of $1 million$2.4 billion as compared to December 31, 2017.2020. This increase was primarily driven by roll-off trades that settled during the period, as well as gains in fair value and contracts acquired during the period, largely offset by roll off trades that were settled during the period.value.
Based on a sensitivity analysis using simplified assumptions, the impact of a $0.50 per MMBtu increase in natural gas prices across the term of the derivative contracts would result in a decreasean increase of approximately $230 million$1.3 billion in the net value of derivatives as of December 31, 2018.2021.
The impact of a $0.50 per MMBtu decrease in natural gas prices across the term of the derivative contracts would result in an increasea decrease of approximately $221 million$1.4 billion in the net value of derivatives as of December 31, 2018.2021.



Critical Accounting Policies and Estimates
NRG'sThe Company's discussion and analysis of the financial condition and results of operations are based upon the Consolidated Financial Statements, which have been prepared in accordance with GAAP. The preparation of these financial statements and related disclosures in compliance with GAAP requires the application of appropriate technical accounting rules and guidance as well as the use of estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. The application of these policiesappropriate technical accounting rules and guidance involves judgments regarding future events, including the likelihood of success of particular projects, legal and regulatory challenges, and the fair value of certain assets and liabilities. These judgments, in and of themselves, could materially affect the financial statements and disclosures based on varying assumptions, which may be appropriate to use. In addition, the financial and operating environment may also have a significant effect, not only on the operation of the business, but on the results reported through the application of accounting measures used in preparing the financial statements and related disclosures, even if the nature of the accounting policies haveguidance has not changed.
On an ongoing basis,
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NRG evaluates these estimates, on an ongoing basis, utilizing historic experience, consultation with experts and other methods the Company considers reasonable. In any event, actual results may differ substantially from the Company's estimates. Any effects on the Company's business, financial position or results of operations resulting from revisions to these estimates are recorded in the period in which the information that gives rise to the revision becomes known.
NRG's significant accounting policies are summarized in Item 15 — Note 2, Summary of Significant Accounting Policies, to the consolidated financial statements. The Company identifies its most critical accounting policiesestimates as those that are the most pervasive and important to the portrayal of the Company's financial position and results of operations, and that require the most difficult, subjective, and/or complex judgments by management regarding estimates about matters that are inherently uncertain.
Such accounting estimates include:
Accounting Estimate
Accounting PolicyJudgments/Uncertainties Affecting Application
Derivative InstrumentsAssumptions used in valuation techniques
Assumptions used in forecasting generation and retail load
Assumptions used in forecasting borrowings
Market maturity and economic conditions
Contract interpretation
Market conditions in the energy industry, especially the effects of price volatility on contractual commitments
Income Taxes and Valuation Allowance for Deferred Tax AssetsAbility to be sustained upon audit examination of taxing authorities
Interpret existing tax statute and regulations upon application to transactions
Ability to utilize tax benefits through carry backs to prior periods and carry forwards to future periods
Evaluation of Assets for Impairment of Long-Lived Assets and InvestmentsOther-Than-Temporary Decline in ValueRecoverability of investment through future operations
Regulatory and political environments and requirements
Estimated useful lives of assets
Environmental obligations and operational limitations
Estimates of future cash flows
Estimates of fair value
Judgment about impairment triggering events
Goodwill and Other Intangible AssetsEstimated useful lives for finite-lived intangible assets
Judgment about impairment triggering events
Estimates of reporting unit's fair value
Fair value estimate of intangible assets acquired in business combinations
ContingenciesBusiness CombinationsFair value of assets acquired and liabilities assumed in business combinations
Estimated future cash flow
Estimated useful lives of assets
ContingenciesEstimated financial impact of event(s)
Judgment about likelihood of event(s) occurring
Regulatory and political environments and requirements

Derivative Instruments
The Company follows the guidance of ASC 815, Derivatives and Hedging, or ASC 815, to account for derivative instruments. ASC 815 requires the Company to mark-to-market all derivative instruments on the balance sheet and recognize changes in the fair value of non-hedge derivative instruments immediately in earnings. In certain cases, NRG may apply hedge accounting to the Company's derivative instruments. The criteria used to determine if hedge accounting treatment is appropriate are: (i) the designation of the hedge to an underlying exposure; (ii) whether the overall risk is being reduced; and (iii) if there is a correlation between the changes in fair value of the derivative instrument and the underlying hedged item. Changes in the fair value of derivatives instruments accounted for as hedges are deferred and recorded as a component of OCI and subsequently recognizedchange in earnings, whenunless they qualify for the hedged transactions occur.NPNS exception. ASC 815 applies to NRG's energy related commodity contracts, interest rate swaps and foreign exchange contracts.
For purposes of measuring the fair value of derivative instruments, NRGthe Company uses quoted exchange prices and broker quotes. When external prices are not available, NRG uses internal models to determine the fair value. These internal models include assumptions of the future prices of energy commodities based on the specific market in which the energy commodity is being purchased or sold, using externally available forward market pricing curves for all periods possible under the pricing model. These estimations are considered to be critical accounting estimates.
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During the fourth quarter of 2020, the Company entered into $1.6 billion of interest rate hedges associated with anticipated certain financing needs. As of December 31, 2020, the interest rate hedges were settled in connection with the issuance of fixed rate debt, resulting in a gain of $11 million that was recorded as a reduction to interest expense. In order to qualify the derivative instruments for hedged transactions prior to termination, NRG estimatesestimated the forecasted borrowings for interest rate swaps occurring within a specified time period. Judgments related
In order to mitigate foreign exchange risk primarily associated with the probabilitypurchase of forecasted borrowings are based on the estimated timing of project construction, which can vary based on various factors. The probability that forecasted borrowings will occur by the end of a specified time period could change the results of operations by requiring amounts currently classified in OCI to be reclassified into earnings, creating increased variability inUSD denominated natural gas for the Company's earnings. These estimations are considered to be critical accounting estimates.Canadian business, the Company enters into foreign exchange contract agreements.
Certain derivative instruments that meet the criteria for derivative accounting treatment also qualify for a scope exception to derivative accounting, as they are considered to be NPNS. The availability of this exception is based upon the assumption that NRGthe Company has the ability and it is probable to deliver or take delivery of the underlying item. These assumptions are based on available baseload capacity,expected load requirements, internal forecasts of sales and generation and historical physical delivery on contracts. Derivatives that are considered to be NPNS are exempt from derivative accounting treatment and are accounted for under accrual accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception due to changes in estimates, the related contract would be recorded on the balance sheet at fair value combined with the immediate recognition through earnings.
Income Taxes and Valuation Allowance for Deferred Tax Assets
As of December 31, 2018, NRG had2021, NRG’s deferred tax assets were primarily the result of U.S. federal and state NOLs, the difference between book and tax basis in property, plant, and equipment, and tax credit carryforwards. The realization of deferred tax assets is dependent upon the Company's ability to generate sufficient future taxable income during the periods in which those temporary differences become deductible, prior to the expiration of the tax attributes. The evaluation of deferred tax assets requires judgment in assessing the likely future tax consequences of events that have been recognized in the Company's financial statements or tax returns and forecasting future profitability by tax jurisdiction.
The Company evaluates its deferred tax assets quarterly on a jurisdictional basis to determine whether adjustments to the valuation allowance are appropriate considering changes in facts or circumstances. As of each reporting date, management considers new evidence, both positive and negative, when determining the future realization of the Company’s deferred tax assets. Given the Company’s current level of pre-tax earnings and forecasted future pre-tax earnings, the Company expects to generate income before taxes in the U.S. in future periods at a level that would fully utilize its U.S. federal NOL carryforwards and the majority of its state NOL carryforwards prior to their expiration.
The Company continues to maintain a valuation allowance of $3.8 billion. This amount is comprisedapproximately $248 million as of domestic federal netDecember 31, 2021 against deferred tax assets consisting of approximately $3.3 billion, domestic state net operating losses and foreign NOL carryforwards in jurisdictions where the Company does not currently believe that the realization of deferred tax assets of $454 million, foreign net operating loss carryforwards of $62 million and foreign capital loss carryforwards of approximately $1 million. The Company believes it is more likely than not thatnot. As of December 31, 2020 the results of future operations will not generate sufficient taxable income which includes the future reversal of existing taxable temporary differences to realize deferred tax assets, requiring aCompany's valuation allowance to be recorded.balance was $266 million.
NRG continues to be under audit for multiple years by taxing authorities in other jurisdictions. Considerable judgment is required to determine the tax treatment of a particular item that involves interpretations of complex tax laws, including the impact of the Tax Cuts and Jobs Act effective December 22, 2017. NRGlaws. The Company is subject to examination by taxing authorities for income tax returns filed in the U.S. federal jurisdiction and various state and foreign jurisdictions, including operations located in Australia.Australia and Canada.The Company continues to be under audit for multiple years by taxing authorities in various jurisdictions.
The Company is no longer subject to U.S. federal income tax examinations for years prior to 2015. 2018.With few exceptions, state and localand Canadian income tax examinations are no longer open for years before 2010.2013.
NRG does not intend, nor currently foresee a need, to repatriate funds held at our international operations into the U.S. These funds are deemed to be indefinitely reinvested in our foreign operations and the Company has not changed its assertion with respect to distributions of funds that would require the accrual of U.S. income tax.
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Evaluation of Assets for Impairment and Other-Than-Temporary Decline in Value
In accordance with ASC 360, Property, Plant, and Equipment, or ASC 360, NRGthe Company evaluates property, plant and equipment and certain intangible assets for impairment whenever indicators of impairment exist. Examples of such indicators or events are:include:
Significant decrease in the market price of a long-lived asset;
Significant adverse change in the manner an asset is being used or its physical condition;
Adverse business climate;
Accumulation of costs significantly in excess of the amountamounts originally expected for the construction or acquisition of an asset;
Current period loss combined with a history of losses or the projection of future losses; and
Change in the Company's intent about an asset from an intent to hold to a greater than 50% likelihood that an asset will be sold, or disposed of before the end of its previously estimated useful life

life.
Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the assets to the future net cash flows expected to be generated by the asset, through considering project specific assumptions for long-term power and natural gas prices, escalated future project operating costs and expected plant operations. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets by factoring in the different courses of action available to the Company. Generally, fair value will be determined using valuation techniques, such as the present value of expected future cash flows. NRG uses its best estimates in making these evaluations and considers various factors, including forward price curves for energy, fuel and operating costs. However, actual future market prices and project costs could vary from the assumptions used in the Company's estimates and the impact of such variations could be material.
For assets to be held and used, if the Company determines that the undiscounted cash flows from the asset are less than the carrying amount of the asset, NRG must estimate fair value to determine the amount of any impairment loss. Assets held-for-sale are reported at the lower of the carrying amount or fair value less the cost to sell. The estimation of fair value, under ASC 360, whether in conjunction with an asset to be held and used or with an asset held-for-sale, and the evaluation of asset impairment are, by their nature, subjective. NRGThe Company considers quoted market prices in active markets to the extent they are available. In the absence of such information, the CompanyNRG may consider prices of similar assets, consult with brokers, or employ other valuation techniques. NRGThe Company will also discount the estimated future cash flows associated with the asset using a single interest rate representative of the risk involved with such an investment or employ an expected present value method that probability-weights a range of possible outcomes.asset. The use of these methods involves the same inherent uncertainty of future cash flows as previously discussed with respect to undiscounted cash flows. Actual future market prices and project costs could vary from those used in the Company'sNRG's estimates and the impact of such variations could be material.
During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released leading the Company to announce the near-term retirement of a significant portion of its PJM coal generating assets in June 2022. The Company considered the decline in PJM capacity prices and the near-term retirement dates of certain assets to be a trigger for impairment and performed impairment tests on the PJM generating assets and the goodwill associated with Midwest Generation. The Company measured the impairment losses on the PJM generation assets and Midwest Generation goodwill as the difference between the carrying amount and the fair value of the PJM generating assets and Midwest Generation reporting unit, respectively. Fair values were determined primarily using an income approach in which the Company applied a discounted cash flow methodology to the long-term budgets for the plants and reporting unit. Significant inputs impacting the income approach include the Company's long-term view of capacity and fuel prices, projected generation, the physical and economic characteristics of each plant, and the discount rate applied to the after-tax cash flow projections. Impairment losses of $271 million and $35 million were recorded in the East segment on the PJM generating assets and Midwest Generation goodwill, respectively.
Annually, during the fourth quarter, the Company revises its views of power and fuel prices including the Company's fundamental view for long termlong-term prices, forecasted generation and operating and capital expenditures, in connection with the preparation of its annual budget. Changes to the Company's views of long termlong-term power and fuel prices impactedimpact the Company’s projections of profitability, based on management's estimate of supply and demand within the sub-markets for its operations and the physical and economic characteristics of each of its businesses. During
In the fourth quarter of 2018,2021, the Company completed itsrecognized an impairment loss of $213 million in the East segment as a result of changes in the long-term outlook of the Joliet facility prompted by market conditions and an assessment of various alternatives for the long-term operational landscape of the facility including the impact of the CEJA in Illinois, which concluded with the annual budget process. The Company recorded additional impairment losses of $16 million and revised its view of long-term$9 million related to various power plants in the East and fuel prices andWest/Services/Other segments, respectively.
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In the corresponding impact on estimated cash flows associated with its long-lived assets. There were no significant changes to the Company's long-term view of natural gas prices despite management's expectation of continued trends towards more renewables and energy storage. There were minimal changes to the long-term view of energy and capacity prices, which did not have a significant negative impact on the Company's coal, nuclear, and renewable facilities.
The following long-lived asset impairment was recorded during 2018, as further described in Item 15 —Note 9, Asset Impairments, to the consolidated financial statements:
Guam— During the fourththird quarter of 2018,2020, the Company concluded its wholly-owned subsidiary, NRGHome Solar Guam, LLC,business was held for sale after board approval andas a result of advanced negotiations to sell the business. Accordingly, the Companybusiness and recorded the assets and liabilities at fair market value as of December 31, 2018 based on the contractual sale price, which resulted in an impairment loss of $12 million. The sale was completed on February 20, 2019.
Keystone and Conemaugh — On June 29, 2018, the Company entered into an agreement to sell its approximately 3.7% interests$29 million in the Keystone and Conemaugh generating stations. The Company recorded impairment losses of $14 million for Keystone and $14 million for ConemaughWest/Services/Other segment to adjust the carrying amount of the assets and liabilities to fair market value based on indicative sale prices. On November 13, 2020, the contractualCompany completed the sale price. The transaction closed on September 5, 2018.of the Home Solar business for $66 million.
Dunkirk — DuringIn the secondfourth quarter of 2018, NRG ceased its development of the project to add gas capability at the Dunkirk generating station. The project was put on hold in 2015 pending the resolution of a lawsuit filed by Entergy Corporation against the NYPSC, which challenged the legality of its contract with Dunkirk. The lawsuit was later dropped and development continued, but the delay imposed a new requirement on Dunkirk to enter into the NYISO interconnection study process. The NYISO studies have concluded that extensive electric system upgrades would be necessary for the station to return to service. This would cause2020, the Company to incur a material increase in cost and delay the project schedule that would render the project impractical. Consequently, the Company has recordedrecognized an impairment loss of $46$32 million reducingin the West/Services/Other segment related to the Cottonwood facility. The impairment was attributable to the Company's long-term services agreement and related lease payments, as the carrying amountamounts of the related assets to $0.
Other Impairments — Asfrom the contract were higher than the estimated operating cash flow though the remaining lease period. Additionally, in the fourth quarter of December 31, 2018,2020, the Company recorded additional$14 million of impairment losses of approximately $13 million. These impairment losses were primarilyrelated to record the value of certain long-lived assets, including property, plant and equipment and intangible assets at fair market value atin the date of sale or in connection with an impairment indicator.Texas segment.

Equity and Cost Method Investments— NRG
The Company is also required to evaluate for impairment its equity method and cost method investments to determine whether or not they are impaired in accordance with ASC 323, Investments - Equity Method and Joint Ventures, or ASC 323. The standard for determining whether an impairment must be recorded under ASC 323 is whether aan observed decline in the value of an equity method investment is considered an other-than-temporary decline in value.other-than-temporary. The evaluation and measurement of impairments under ASC 323 involves the same uncertainties as described for long-lived assets that the Company owns directly and accounts for in accordance with ASC 360. Similarly, the estimates that NRGthe Company makes with respect to its equity and cost method investments are subjective, and the impact of variations in these estimates could be material. Additionally, if the projects in which the Company holds these investments recognize an impairment under the provisions of ASC 360, NRGthe Company would record its proportionate share of that impairment loss and would evaluate its investment for an other-than-temporary decline in value under ASC 323. During the year ended December 31, 2018,first quarter of 2020, NRG recorded an impairment loss of $18 million in the Company recorded impairment losses onTexas segment, attributable to its equity method investmentsinvestment in Petra Nova Parish Holdings, which included the anticipated drawdown of $15the $12 million dueletter of credit posted in September 2019 to declines in value.cover certain project debt reserve requirements.
Goodwill and Other Intangible Assets
At December 31, 2018, NRG2021, the Company reported goodwill of $573 million,$1.8 billion, consisting of $165$1.3 billion from the acquisition of Direct Energy in 2021, $130 million associated with the acquisition of Midwest Generation and $408$414 million for retail business acquisitions. The balance of goodwill increased by $34 millionoperations acquisitions, including Stream Energy, which was acquired in 2018 due to the acquisition of XOOM.2019.
The Company applies ASC 805, Business Combinations, or ASC 805, and ASC 350, Intangibles-Goodwill and Other, orASC 350 to account for its goodwill and intangible assets. Under these standards, the Company amortizes all finite-lived intangible assets over their respective estimated weighted-average useful lives, while goodwill has an indefinite life and is not amortized. Goodwill is tested for impairment at least annually, or more frequently whenever an event or change in circumstances occurs that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The Company tests goodwill for impairment at the reporting unit level, which is identified by assessing whether the components of the Company's operating segments constitute businesses for which discrete financial information is available and whether segment management regularly reviews the operating results of those components. The Company performs the annual goodwill impairment assessment as of December 31 or when events or changes in circumstances indicate that the fair value of the reporting unit may be below the carrying value may not be recoverable.amount. The Company first assesses qualitative factors to determine whether it is more likely than not that an impairment has occurred. In the absence of sufficient qualitative factors, the Company performs a quantitative assessment by determining the fair value of the reporting unit and comparing to its book value. If it is determined that the fair value of a reporting unit is below its carrying amount, where necessary, the Company's goodwill will be impaired at that time.
During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released leading the Company to announce the near-term retirement of a significant portion of its PJM coal generating assets in June 2022. The Company considered the decline in PJM capacity prices and the near-term retirement dates of certain assets to be a trigger for impairment and performed impairment tests on the PJM generating assets and the goodwill associated with Midwest Generation. An impairment of $35 million was recorded in Midwest Generation goodwill. For further discussion, see Evaluation of Assets for Impairment and Other-Than-Temporary Decline in Value caption above.
During the fourth quarter of 2021, the Company performed its qualitative assessment of macroeconomic, industry and market events and circumstances, and the overall financial performance of the NRG Business SolutionsTexas (Texas segment) and CommodityEast Retail (East segment) reporting units. The Company determined it was more likely thanmore-likely-than not that the fair value of the goodwill attributed to these reporting units were more than their carrying amount and accordingly, no impairment existed for the year ended December 31, 2018.2021.
The
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During the fourth quarter of 2021, the Company also performed a quantitative assessment for the Midwest Generation (East segment) and West/Services/Other reporting units in the following table.units. The Company determined the fair value of thesethe reporting units using primarily an income approach. UnderBased on the income approach, the Company estimated the fair value of theeach reporting units' invested capital exceedscash flows exceeded its carrying value and, as such, the CompanyNRG concluded that the goodwill associated with theeach reporting units in the following table isunit was not impaired as of December 31, 2018:
Reporting Unit% Fair Value Over Carrying Value
Midwest Generation (Generation Segment)132%
Texas Non-Commodity (Retail Segment)135%
2021.
The Company believes the methodology and assumptions used in its quantitative assessment areassessments were consistent with the views of market participants. Significant inputs to the determinationdeterminations of fair value of the Midwest Generation reporting unit were as follows:
The Company applied a discounted cash flow methodology to the long-term forecastsbudgets for allthe Midwest Generation plants, resulting in fair value over the carrying value of the plants in the region.reporting unit of 117%. The significant assumptions used to derive the long-term budgets used in the income approach are affected by the following key inputs:
The Company's views of power and fuel prices consider market prices for the first five-year period and the Company's fundamental view for the longer term, driven by the Company's long-term view of the price of natural gas. The Company's fundamental view for the longer term reflects the implied power price and heat rate that would support new build of a combined cycle gas plant. The price of natural gas plays an important role in setting the price of electricity in many of the regions where NRG operates power plants. Hedging is included to the extent of contracts already in place;

The Company's views of power, capacity and fuel prices consider market prices for the next five years and the Company's fundamental view for the longer term, driven by the Company's long-term view of the price of natural gas. The Company's fundamental view for the longer term reflects the implied prices and heat rate that would support new build of a combined cycle gas plant. The price of natural gas plays an important role in setting the price of electricity in many of the regions where NRG operates power plants. Hedging is included to the extent of contracts already in place;
The Company's estimate of generation, fuel costs, capital expenditure requirements and the existing and anticipated impact of environmental regulations;
The Company's fundamental view for the longer term, cash flows for the plants in the region were included in the fair value calculation through the end of each plants' estimated useful life; and
The Company's estimate of generation, fuel costs, capital expenditure requirements and the existing and anticipated impact of environmental regulations;
The Company's fundamental view for the longer term, cash flows for the plants in the region were included in the fair value calculation through the end of each plants' estimated useful life; and
Projected generation and resulting energy gross margin in the long-term forecasts is based on an hourly dispatch that simulates dispatch of each unit into the power market. The dispatch simulation is based on power prices, fuel prices, and the physical and economic characteristics of each plant
The Company applied a discounted cash flow methodology to the long-term budget for the Texas Non-Commodity reporting unit. The significant assumptions used to derive the long-term budgets used inis based on an hourly dispatch that simulates dispatch of each unit into the income approach are affected bypower market. The dispatch simulation is based on power prices, fuel prices, and the following key inputs: a terminal value utilizing assumed growth ratesphysical and discount rates that reflect the inherent cash flow risk foreconomic characteristics of each reporting unit.plant.
Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions and factors. As a result, there can be no assurance that the estimates and assumptions made for purposes of the annual goodwill impairment test will prove to be accurate predictions of the future.
Business Combinations
We account for business acquisitions using the acquisition method of accounting prescribed under ASC 805. Under this method, we are required to record on our Consolidated Balance Sheets the estimated fair values of the acquired company’s assets and liabilities assumed at the acquisition date. The excess of the consideration transferred over the fair value of the net identifiable assets acquired and liabilities assumed is recorded as goodwill. Determining fair values of assets acquired and liabilities assumed requires significant estimates and judgments. We determine fair value based on the estimated price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The acquired assets and assumed liabilities that involved the most subjectivity in determining fair value consisted of the trade names, customer relationships and derivative contracts.
The fair value of trade names and customer relationships was measured using income-based valuation methodologies, which include certain assumptions such as forecasted future cash flows, customer attrition rates, royalty rates and discount rates. The trade names are amortized to depreciation and amortization, on a straight line basis. The customer relationships are amortized to depreciation and amortization, ratably based on discounted future cash flows.
In measuring the fair value of derivative contracts, a significant portion of the fair value of the derivative portfolio was based on price quotes from brokers in active markets who regularly facilitate those transactions and the Company believes such price quotes are executable. The Company does not use third party sources that derive price based on proprietary models or market surveys. The remainder of the assets and liabilities represents contracts for which external sources or observable market quotes are not available. These contracts were valued based on various valuation techniques including but not limited to internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. The fair value of each contract was discounted using a risk free interest rate. In addition, the Company applied a credit reserve to reflect credit risk. NRG describes in detail its acquisitions in Item 15 — Note 4, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements
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Contingencies
NRG records reserves for estimated losses from contingencies when information available indicates that a loss is probable and the amount of the loss, or range of loss, can be reasonably estimated. Gain contingencies are not recorded until management determines it is certain that the future event will become or does become a reality. Such determinations are subject to interpretations of current facts and circumstances, forecasts of future events, and estimates of the financial impacts of such events. NRG describes in detail its contingencies in Item 15 — Note 21, 23, Commitments and Contingencies,, to the consolidated financial statements.Consolidated Financial Statements.
Recent Accounting Developments
See Item 15 — Note 2,, Summary of Significant Accounting Policies,, to the consolidated financial statementsConsolidated Financial Statements for a discussion of recent accounting developments.


Item 7A — Quantitative and Qualitative Disclosures About Market Risk
NRG is exposed to several market risks in the Company's normal business activities. Market risk is the potential loss that may result from market changes associated with the Company's retail businesses,operations, merchant power generation, or with an existing or forecasted financial or commodity transaction.transactions. The types of market risks the Company is exposed to are commodity price risk, interest rate risk, liquidity risk, credit risk and currency exchange risk. In order to manage these risks, the Company uses various fixed-price forward purchase and sales contracts, futures and option contracts traded on NYMEX and other exchanges, and swaps and options traded in the over-the-counter financial markets to:
Manage and hedge fixed-price purchase and sales commitments;
Manage and hedge exposure to variable rate debt obligations;
Reduce exposure to the volatility of cash market prices, and
Hedge fuel requirements for the Company's generating facilities.
Commodity Price Risk
Commodity price risks result from exposures to changes in spot prices, forward prices, volatilities, and correlations between various commodities, such as natural gas, electricity, coal, oil, and emissions credits. NRG manages the commodity price risk of the Company's load servicing obligations and merchant generation operations and load serving obligations by entering into various derivative or non-derivative instruments to hedge the variability in future cash flows from forecasted sales and purchases of electricity and fuel. These instruments include forwards, futures, swaps, and option contracts traded on various exchanges, such as NYMEX and ICE, as well as over-the-counter markets. The portion of forecasted transactions hedged may vary based upon management's assessment of market, weather, operation and other factors.
While some of the contracts the Company uses to manage risk represent commodities or instruments for which prices are available from external sources, other commodities and certain contracts are not actively traded and are valued using other pricing sources and modeling techniques to determine expected future market prices, contract quantities, or both. NRG uses the Company's best estimates to determine the fair value of those derivative contracts. However, it is likely that future market prices could vary from those used in recording mark-to-market derivative instrument valuation and such variations could be material.
NRG measures the risk of the Company's portfolio using several analytical methods, including sensitivity tests, scenario tests, stress tests, position reports and VaR. NRG uses a Monte Carlo simulation based VaR model to estimate the potential loss in the fair value of the Company'sits energy assets and liabilities, which includes generation assets, load obligations,gas transportation and bilateral physical and financial transactions. The key assumptions for the Company's VaR model include: (i) lognormal distribution of prices; (ii) one-day holding period; (iii) 95% confidence interval; (iv) rolling 36-month forward looking period; and (v) market implied volatilities and historical price correlations.
As of December 31, 2018, the VaR for NRG's commodity portfolio, including generationstorage assets, load obligations and bilateral physical and financial transactions, calculated using thebased on historical and forward values for factors such as customer demand, weather, commodity availability and commodity prices. The Company's VaR model was $44 million.is based on a one-day holding period at a 95% confidence interval for the forward 36 months, not including the spot month. The VaR model is not a complete picture of all risks that may affect the Company's results. Certain events such as counterparty defaults, regulatory changes, and extreme weather and prices that deviate significantly from historically observed values are not reflected in the model.
The following table summarizes average, maximum and minimum VaR for NRGNRG's commodity portfolio, calculated using the VaR model for the years ended December 31, 20182021 and 2017:2020:
(In millions)20212020
VaR as of December 31, (a)
$30 $30 
For the year ended December 31,
Average(b)
$35 $30 
Maximum(b)
53 47 
Minimum(b)
23 22 
(In millions)2018 2017
VaR as of December 31,$44
 $46
For the year ended December 31,   
Average$59
 $51
Maximum75
 66
Minimum44
 40
(a)Calculation includes entire NRG portfolio as of December 31, 2021
Due to(b)Calculation is based on NRG generation assets and load obligations excluding the inherent limitationsacquisition of statistical measures such as VaR, the evolving nature of the competitive markets for electricityDirect Energy assets and related derivatives, and the seasonality of changes in market prices, the VaR calculation may not capture the full extent of commodity price exposure. As a result, actual changesload obligations in the fair valuefirst quarter of mark-to-market energy assets and liabilities could differ from the calculated VaR, and such changes could have a material impact on the Company's financial results.2021
In order to provide additional information, the Company also uses VaR to estimate the potential loss of derivative financial instruments that are subject to mark-to-market accounting. These derivative instruments include transactions that were entered into for both asset management and trading purposes. The VaR for the derivative financial instruments calculated using the diversified VaR model for the entire term of these instruments entered into for both asset management and trading was $14$242 million as of December 31, 2018,2021, primarily driven by asset-backed transactions. The increase in the VaR for derivative financial instruments was primarily due to the acquisition of Direct Energy.

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Retail Customer Credit Risk
NRG is exposed to retail credit risk related to its Business and Home customers. Retail credit risk results in losses when a customer fails to pay for services rendered. The losses may result from both nonpayment of customer accounts receivable and the loss of in-the-money forward value. NRG manages retail credit risk through the use of established credit policies that include monitoring of the portfolio and the use of credit mitigation measures, such as deposits or prepayment arrangements.
As of December 31, 2021, the Company's retail customer credit exposure to Home and Business customers was diversified across many customers and various industries, as well as government entities. The Company's provision for credit losses resulting from credit risk was $698 million, $108 million and $95 million for the years ending December 31, 2021, 2020 and 2019, respectively. As a result of Winter Storm Uri, the Company incurred additional credit losses from Business customers primarily due to a segment of customers whose contracts included a pass through of wholesale power prices which were significantly escalated during the storm and from customers who failed to meet their obligations in ERCOT load curtailment programs.
Liquidity Risk
Liquidity risk arises from the general funding needs of the Company's activities and the management of the Company's assets and liabilities. The Company is currently exposed to additional collateral posting if natural gas prices decline, primarily due to the long natural gas equivalent position at various exchanges used to hedge NRG's retail supply load obligations.
Based on a sensitivity analysis for power and gas positions under marginable contracts as of December 31, 2021, a $0.50 per MMBtu decrease in natural gas prices across the term of the marginable contracts would cause an increase in margin collateral posted of approximately $828 million and a 1.00 MMBtu/MWh decrease in heat rates for heat rate positions would result in an increase in margin collateral posted of approximately $378 million. This analysis uses simplified assumptions and is calculated based on portfolio composition and margin-related contract provisions as of December 31, 2021.
Counterparty Credit Risk
Credit risk relates to the risk of loss resulting from non-performance or non-payment by counterparties pursuant to the terms of their contractual obligations. The Company monitors and manages credit risk through credit policies that include: (i) an established credit approval process; (ii) a daily monitoring of counterparties' credit limits; (iii) the use of credit mitigation measures such as margin, collateral, prepayment arrangements, or volumetric limits; (iv) the use of payment netting agreements; and (v) the use of master netting agreements that allow for the netting of positive and negative exposures of various contracts associated with a single counterparty. Risks surrounding counterparty performance and credit could ultimately impact the amount and timing of expected cash flows. The Company seeks to mitigate counterparty risk by having a diversified portfolio of counterparties. The Company also has credit protection within various agreements to call on additional collateral support if and when necessary. Cash margin is collected and held at the Company to cover the credit risk of the counterparty until positions settle.
As of December 31, 2021, counterparty credit exposure, excluding credit exposure from RTOs, ISOs, and registered commodity exchanges and certain long-term agreements, was $2.2 billion, of which the Company held collateral (cash and letters of credit) against those positions of $598 million resulting in a net exposure of $1.6 billion. NRG periodically receives collateral from counterparties in excess of their exposure. Collateral amounts shown include such excess while net exposure shown excludes excess collateral received. Approximately 87% of the Company's exposure before collateral is expected to roll off by the end of 2023. The following table highlights the net counterparty credit exposure by industry sector and by counterparty credit quality. Net counterparty credit exposure is defined as the aggregate net asset position for NRG with counterparties where netting is permitted under the enabling agreement and includes all cash flow, mark-to-market, NPNS, and non-derivative transactions. As of December 31, 2021, the aggregate credit exposure is shown net of collateral held, and includes amounts net of receivables or payables.
Category
Net Exposure (a) (b)
(% of Total)
Utilities, energy merchants, marketers and other67 %
Financial institutions33 
Total100 %
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Category
Net Exposure (a) (b)
(% of Total)
Investment grade55 %
Non-Investment grade/Non-Rated45 
Total100 %
(a)Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices
(b)The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long-term contracts

The Company has no exposure to wholesale counterparties in excess of 10% of the total net exposure discussed above as of December 31, 2021. Changes in hedge positions and market prices will affect credit exposure and counterparty concentration.
During Winter Storm Uri, the Company experienced nonperformance by a counterparty in one of its bilateral financial hedging transactions, resulting in exposure of $403 million. The Company is pursuing all means available to enforce its rights under this transaction but, given the size of the exposure, cannot determine with certainty what the amount of its ultimate recovery will be. The full exposure was recorded as a provision for credit losses during the year ended December 31, 2021.
RTOs and ISOs
The Company participates in the organized markets of CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM, known as RTOs or ISOs. Trading in these markets is approved by FERC, or in the case of ERCOT, approved by the PUCT and include credit policies that, under certain circumstances, require that losses arising from the default of one member on spot market transactions be shared by the remaining participants. As a result, the counterparty credit risk to these markets is limited to NRG’s applicable share of the overall market and are excluded from the above exposures.
Exchange Traded Transactions
The Company enters into commodity transactions on registered exchanges, notably ICE, NYMEX and Nodal. These clearinghouses act as the counterparty and transactions are subject to extensive collateral and margining requirements. As a result, these commodity transactions have limited counterparty credit risk.
Long-Term Contracts
Counterparty credit exposure described above excludes credit risk exposure under certain long-term contracts, primarily solar PPAs. As external sources or observable market quotes are not available to estimate such exposure, the Company values these contracts based on various techniques including, but not limited to, internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Based on these valuation techniques, as of December 31, 2021, aggregate credit risk exposure managed by NRG to these counterparties was approximately $1.1 billion for the next five years.
Interest Rate Risk
NRG is exposed to fluctuations in interest rates through the Company's issuanceAs of fixed rate and variable rate debt. Exposures to interest rate fluctuations may be mitigated by entering into derivative instruments known as interest rate swaps, caps, collars and put or call options. These contracts reduce exposure to interest rate volatility and result in primarily fixed rate debt obligations when taking into account the combination of the variable rate debt and the interest rate derivative instrument. NRG's risk management policies allow the Company to reduce interest rate exposure from variable rate debt obligations.
In addition to those discussed above, the Company's project subsidiaries enter into interest rate swaps, intended to hedge the risks associated with interest rates on non-recourse project level debt. See Item 15 — Note 11,Debt and Capital Leases, to the Consolidated Financial Statements, for more information about interest rate swaps of the Company's project subsidiaries.
If all of the above swaps had been discontinued on December 31, 2018, the counterparties would have owed the Company $37 million. Based on the investment grade rating of the counterparties, NRG believes its exposure to credit risk due to nonperformance by counterparties to its hedge contracts to be insignificant.
NRG has both long and short-term debt instruments that subject the Company to the risk of loss associated with movements in market interest rates. As of December 31, 2018, a 1% change in interest rates would result in a $7 million change in interest expense on a rolling twelve month basis.
As of December 31, 2018,2021, the Company's debt fair value was $6.7$8.3 billion and carrying value was $6.6$8.0 billion. NRG estimates that a 1% decrease in market interest rates would have increased the fair value of the Company's long-term debt by $510$690 million.
Liquidity Risk
Liquidity risk arises from the general funding needs of the Company's activities and in the management of the Company's assets and liabilities. The Company is currently exposed to additional collateral posting if natural gas prices decline primarily due to the long natural gas equivalent position at various exchanges used to hedge NRG's retail supply load obligations.
Based on a sensitivity analysis for power and gas positions under marginable contracts, a $0.50 per MMBtu change in natural gas prices across the term of the marginable contracts would cause a change in margin collateral posted of approximately $125 million as of December 31, 2018, and a 1.00 MMBtu/MWh change in heat rates for heat rate positions would result in a change in margin collateral posted of approximately $62 million as of December 31, 2018. This analysis uses simplified assumptions and is calculated based on portfolio composition and margin-related contract provisions as of December 31, 2018.
Counterparty Credit Risk
Credit risk relates to the risk of loss resulting from non-performance or non-payment by counterparties pursuant to the terms of their contractual obligations. The Company monitors and manages credit risk through credit policies that include: (i) an established credit approval process; (ii) a daily monitoring of counterparties' credit limits; (iii) the use of credit mitigation measures such as margin, collateral, prepayment arrangements, or volumetric limits; (iv) the use of payment netting agreements; and (v) the use of master netting agreements that allow for the netting of positive and negative exposures of various contracts associated with a single counterparty. Risks surrounding counterparty performance and credit could ultimately impact the amount and timing of expected cash flows. The Company seeks to mitigate counterparty risk by having a diversified portfolio of counterparties. The Company also has credit protection within various agreements to call on additional collateral support if and when necessary. Cash margin is collected and held at the Company to cover the credit risk of the counterparty until positions settle.

As of December 31, 2018, aggregate counterparty credit exposure to a significant portion of the Company's counterparties totaled $301 million, of which the Company held collateral (cash and letters of credit) against those positions of $123 million resulting in a net exposure of $180 million. Approximately 66% of the Company's exposure before collateral is expected to roll off by the end of 2020. The following table highlights the net counterparty credit exposure by industry sector and by counterparty credit quality. Net counterparty credit exposure is defined as the aggregate net asset position for NRG with counterparties where netting is permitted under the enabling agreement and includes all cash flow, mark-to-market, NPNS, and non-derivative transactions. As of December 31, 2018, the aggregate credit exposure is shown net of collateral held, and includes amounts net of receivables or payables.
Category
Net Exposure (a) (b)
(% of Total)
Financial institutions11%
Utilities, energy merchants, marketers and other89
Total100%
Category
Net Exposure (a) (b)
(% of Total)
Investment grade49%
Non-Investment grade/Non-Rated51
Total100%
(a)Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices
(b)The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long term contracts

The Company currently has no exposure to any individual wholesale counterparty in excess of 10% of the total net exposure discussed above as of December 31, 2018. Changes in hedge positions and market prices will affect credit exposure and counterparty concentration. Given the credit quality, diversification and term of the exposure in the portfolio, the Company does not anticipate a material impact on its financial position or results of operations from nonperformance by any counterparty.
RTOs and ISOs
The Company participates in the organized markets of CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM, known as RTOs or ISOs. Trading in these markets is approved by FERC, or in the case of ERCOT, approved by the PUCT and include credit policies that, under certain circumstances, require that losses arising from the default of one member on spot market transactions be shared by the remaining participants. As a result, the counterparty credit risk to these markets is limited to NRG’s applicable share of the overall market and are excluded from the above exposures.

Exchange Traded Transactions
The Company enters into commodity transactions on registered exchanges, notably ICE and NYMEX. These clearinghouses act as the counterparty and transactions are subject to extensive collateral and margining requirements. As a result, these commodity transactions have limited counterparty credit risk.

Long Term Contracts
Counterparty credit exposure described above excludes credit risk exposure under certain long term contracts, including California tolling agreements and solar PPAs. As external sources or observable market quotes are not available to estimate such exposure, the Company values these contracts based on various techniques including, but not limited to, internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Based on these valuation techniques, as of December 31, 2018, aggregate credit risk exposure managed by NRG to these counterparties was approximately $434 million for the next five years. This amount excludes potential credit exposures for projects with long-term PPAs that have not reached commercial operations and any exposure for entities classified as a discontinued operation.
NRG through its unconsolidated affiliates Ivanpah and Agua Caliente has exposure to PG&E of approximately $321 million for the next five years. As a result of the bankruptcy filing by PG&E on January 29, 2019, it is uncertain whether and to what extent the bankruptcy may have on these contracts. For further discussion see Note 15 Investments Accounted for by the Equity Method and Variable Interest Entities.
Retail Customer Credit Risk
NRG is exposed to retail credit risk through its retail electricity providers, which serve C&I customers and the Mass market. Retail credit risk results in losses when a customer fails to pay for services rendered. The losses could be incurred from nonpayment of customer accounts receivable and any in-the-money forward value. NRG manages retail credit risk through the use of established credit policies that include monitoring of the portfolio, and the use of credit mitigation measures such as deposits or prepayment arrangements.
As of December 31, 2018, the Company's retail customer credit exposure to C&I and Mass customers was diversified across many customers and various industries, as well as government entities. The Company is also subject to risk with respect to its residential solar customers. The Company's bad debt expense resulting from credit risk was $85 million, $68 million, and $45 million for the years ending December 31, 2018, 2017, and 2016, respectively. Current economic conditions may affect the Company's customers' ability to pay bills in a timely manner, which could increase customer delinquencies and may lead to an increase in bad debt expense.
Credit Risk Related Contingent Features
Certain of the Company's hedging and trading agreements contain provisions that requireentitle the counterparty to demand that the Company to post additional collateral if the counterparty determines that there has been deterioration in the Company's credit quality, generally termed "adequate assurance"“adequate assurance” under the agreements, or require the Company to post additional collateral if there were a one notch downgrade in the Company's credit rating. In addition, as a result of the acquisition of Direct Energy from Centrica, certain of the Company’s agreements as of December 31, 2021, were still supported by credit support posted by Centrica, and as a result could require the Company to post collateral upon a deterioration or downgrade of Centrica. The collateral potentially required for contracts that havewith adequate assurance clauses that are in a net liability position as of December 31, 20182021, was $16 million. The collateral required for contracts with credit rating contingent features that are in a net liability position as of December 31, 2018 was $14 million.$1.0 billion. The Company is also a party to certain marginable agreements under which it has a net liability position, but the counterparty has not called for the collateral due, which iswas approximately $11$70 million as of December 31, 2018.2021. In the event of a downgrade in the Company's credit rating and if called for by the counterparty, $1 million of additional collateral would be required for all contracts with credit rating contingent features as of December 31, 2021.
75

Currency Exchange Risk
NRG's foreign earnings and investments may beNRG is subject to transactional exchange rate risk from transactions with customers in countries outside of the United States, primarily within Canada, as well as from intercompany transactions between affiliates. Transactional exchange rate risk arises from the purchase and sale of goods and services in currencies other than our functional currency or the functional currency of an applicable subsidiary. NRG hedges a portion of its forecasted currency transactions with foreign exchange forward contracts. As of December 31, 2021, NRG is exposed to changes in foreign currency primarily associated with the purchase of U.S. dollar denominated natural gas for its Canadian business and entered into foreign exchange contracts with notional amount of $279 million.
The Company is subject to translation exchange rate risk which NRG generally does not hedge.related to the translation of the financial statements of its foreign operations into U.S. dollars. Costs incurred and sales recorded by subsidiaries operating outside of the United States are translated into U.S. dollars using exchange rates effective during the respective period. As these earningsa result, the Company is exposed to movements in the exchange rates of various currencies against the U.S. dollar, primarily the Canadian and investments are not materialAustralian dollars. A hypothetical 10% appreciation in major currencies relative to NRG's consolidated results, the Company's foreign currency exposure is limited.U.S. dollar as of December 31, 2021 would have resulted in an increase of $10 million to net income within the Consolidated Statement of Operations.

Item 8 — Financial Statements and Supplementary Data
The financial statements and schedules are listedincluded in Part IV, Item 15 of this Form 10-K.

Item 9 — Changes in and Disagreements With Accountants on Accounting and Financial Disclosure
None.

Item 9A — Controls and Procedures
Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures and Internal Control Over Financial Reporting
Under the supervision and with the participation of NRG's management, including its principal executive officer, principal financial officer and principal accounting officer, NRG conducted an evaluation of the effectiveness of the design and operation of its disclosure controls and procedures, as such term is defined in Rules 13a-15(e) or 15d-15(e) of the Exchange Act. Based on this evaluation, the Company's principal executive officer, principal financial officer and principal accounting officer concluded that the disclosure controls and procedures were effective as of the end of the period covered by this Annual Report on Form 10-K. Management's report on the Company's internal control over financial reporting and the report of the Company's independent registered public accounting firm are incorporated under the caption "Management's Report on Internal Control over Financial Reporting" and under the caption "Report of Independent Registered Public Accounting Firm" in this Annual Report on Form 10-K for the fiscal year ended December 31, 2018.2021.
Changes in Internal Control over Financial Reporting
ThereDuring the year ended December 31, 2021, the Company completed its acquisition of Direct Energy. In the first quarter of 2022, the Company integrated a significant component of Direct Energy's accounting systems into NRG's legacy ERP system. As part of this integration, the Company has completed the evaluation of our internal controls related to Direct Energy, and designed and implemented a control structure over Direct Energy's operations. Other than the Direct Energy acquisition, there were no changes in NRG’s internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) that occurred in the fourth quarter of 20182021 that materially affected, or are reasonably likely to materially affect, NRG’s internal control over financial reporting.
76

Inherent Limitations over Internal Controls
NRG's internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements for external purposes in accordance with GAAP. The Company's internal control over financial reporting includes those policies and procedures that:
1.Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the Company's assets;
2.Provide reasonable assurance that transactions are recorded as necessary to permit preparation of consolidated financial statements in accordance with GAAP, and that the Company's receipts and expenditures are being made only in accordance with authorizations of its management and directors; and
3.Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the consolidated financial statements
1.Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the Company's assets;
2.Provide reasonable assurance that transactions are recorded as necessary to permit preparation of consolidated financial statements in accordance with GAAP, and that the Company's receipts and expenditures are being made only in accordance with authorizations of its management and directors; and
3.Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the consolidated financial statements.
Internal control over financial reporting cannot provide absolute assurance of achieving financial reporting objectives because of its inherent limitations, including the possibility of human error and circumvention by collusion or overriding of controls. Accordingly, even an effective internal control system may not prevent or detect material misstatements on a timely basis. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate.
Management's Report on Internal Control over Financial Reporting
The Company's management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Under the supervision and with the participation of the Company's management, including its principal executive officer, principal financial officer and principal accounting officer, the Company conducted an evaluation of the effectiveness of its internal control over financial reporting based on the framework in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on the Company's evaluation under the framework in Internal Control — Integrated Framework (2013), the Company's management concluded that its internal control over financial reporting was effective as of December 31, 2018.2021.
On June 1, 2018, weJanuary 5, 2021, NRG acquired XOOMDirect Energy, LLC, as further described in Note 3, 4, Acquisitions, Discontinued Operations and Dispositions. XOOMDispositions. Direct Energy LLC's assets comprised of approximately 2.1%35% of the Company's total assets as of December 31, 20182021 and approximately 2.3%58% of the Company's total revenues for the year ended December 31, 2018.2021. As of December 31, 2018,2021, we are in the process of evaluating the internal controls of the acquired business and integratingintegrated it into our existing operations.

The acquired business has, therefore, been excluded from management's assessment of internal control over financial reporting for the year ended December 31, 2018.2021.
The effectiveness of the Company's internal control over financial reporting as of December 31, 20182021 has been audited by KPMG LLP, the Company's independent registered public accounting firm, as stated in its report which is included in this Annual Report on Form 10‑K.10-K.


77

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


TheTo the Board of Directors and Stockholders
NRG Energy, Inc.:
Opinion on Internal Control Over Financial Reporting
We have audited NRG Energy, Inc.’s and subsidiariessubsidiaries' (the Company) internal control over financial reporting as of December 31, 2018,2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2018,2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 20182021 and 2017,2020, the related consolidated statements of operations, comprehensive income/(loss),income, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2018,2021, and the related notes and financial statement schedule II (collectively, the consolidated financial statements), and our report dated February 28, 201924, 2022 expressed an unqualified opinion on those consolidated financial statements.
ManagementThe Company acquired Direct Energy during 2021 and management excluded XOOM Energy, LLC (XOOM), acquired by the Company during 2018, from theirits assessment of the effectiveness of the Company's internal control over financial reporting as of December 31, 2018. XOOM's2021. Direct Energy's internal control over financial reporting are associated with 35% of total assets comprised approximately 2.1%and 58% of total revenues included in the consolidated financial statements of the Company's total assetsCompany as of December 31, 2018 and approximately 2.3% of the Company's total revenues for the year ended December 31, 2018.2021. Our audit of the Company's internal control over financial reporting of the Company also excluded XOOM.an evaluation of the internal control over financial reporting of Direct Energy.
Basis for Opinion
The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
Definition and Limitations of Internal Control Over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.


(signed)/s/ KPMG LLP


Philadelphia, Pennsylvania
February 28, 201924, 2022

78

Item 9B — Other Information
None.Entry into a Material Definitive Agreement.

On February 22, 2022, the Company entered into a Supplemental Indenture (the “Supplemental Indenture”), by and among the Company, the guarantors named therein (the “Guarantors") and Delaware Trust Company, as trustee and conversion agent (the “Trustee”), to supplement the Indenture, dated as of May 24, 2018 (the “Indenture”), among the Company, the Guarantors and the Trustee, governing the Convertible Senior Notes. Pursuant to the Supplemental Indenture, the Company has irrevocably (i) eliminated the right of the Company to elect Physical Settlement (as defined in the Indenture) as the Settlement Method (as defined in the Indenture) on any conversion of Convertible Senior Notes that occurs on or after the date of the Supplemental Indenture and (ii) elected that, with respect to any Combination Settlement (as defined in the Indenture), the Specified Dollar Amount (as defined in the Indenture) per $1,000 principal amount of the Convertible Senior Notes shall be no lower than $1,000.
The foregoing description of the Supplemental Indenture does not purport to be complete and is qualified in its entirety by reference to the full text of the Supplemental Indenture, a copy of which is filed as Exhibit 4.52 to this report and is incorporated herein by reference.
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
Effective February 24, 2022, Emily C. Picarello, CPA, was named as Principal Accounting Officer of NRG Energy, Inc. Ms. Picarello, age 41, joined the Company in December 2018 and served as Assistant Controller for the Company through November 2021, when she was promoted to Vice President and Corporate Controller. Ms. Picarello will continue in this role reporting to Alberto Fornaro, NRG's Executive Vice President and Chief Financial Officer.
Prior to her employment with the Company, Ms. Picarello spent over seven years with PVH Corp., one of the largest global apparel companies in the world, first as the Director of Financial Reporting and then as the Vice President, Financial Reporting. Prior to Ms. Picarello's time with PVH Corp., she was an auditor with KPMG LLP for over eight years, holding various positions including Audit Senior Manager.

Item 9C— Disclosure Regarding Foreign Jurisdictions that Prevent Inspections
Not applicable.
79

PART III

Item 10 — Directors, Executive Officers and Corporate Governance
Directors
E. Spencer Abraham has been a director of NRG since December 2012. Previously, he served as a director of GenOn Energy, Inc. from January 2012 to December 2012. He is Chairman and Chief Executive Officer of The Abraham Group, an international strategic consulting firm based in Washington, D.C. which he founded in 2005. Prior to that, Secretary Abraham served as Secretary of Energy under President George W. Bush from 2001 through January 2005 and was a U.S. Senator for the State of Michigan from 1995 to 2001. Secretary Abraham serves on the boards of the following public companies: Occidental Petroleum Corporation, PBF Energy and Two Harbors Investment Corp., as well as chairman of the board of Uranium Energy Corp. He also serves on the board of C3 IoT, a private company. Secretary Abraham previously served as the non-executive chairman of AREVA, Inc., the U.S. subsidiary of the French-owned nuclear company, and as a director of Deepwater Wind LLC, International Battery, Green Rock Energy, ICx Technologies, PetroTiger and Sindicatum Sustainable Resources. He also previously served on the advisory board or committees of Midas Medici (Utilipoint), Millennium Private Equity, Sunovia and Wetherly Capital.
Matthew Carter, Jr. has been a director of NRG since March 2018. Mr. Carter currently serves as Chief Executive Officer of Aryaka Networks, Inc. Mr. Carter served as President and Chief Executive Officer and a director of Inteliquent, Inc., a publicly traded provider of voice telecommunications services, from June 2015 until February 2017 when Inteliquent, Inc. was acquired. He served as President of the Sprint Enterprise Solutions business unit of Sprint Corporation, a publicly traded telecommunications company, from September 2013 until January 2015 and, previous to that position, served as President, Sprint Global Wholesale & Emerging Solutions at Sprint Nextel Corporation. Mr. Carter also serves as a director of Jones Lang Lasalle Incorporated. He previously served as a director of USG Corporation from 2012 to 2018, Apollo Education Group, Inc. from 2012 to 2017 and Inteliquent, Inc. from June 2015 to February 2017 and has significant marketing, technology and international experience, including previous management oversight for all of Inteliquent, Inc.’s operations.
Lawrence S. Coben has served as Chairman of the Board since February 2017, and has been a director of NRG since December 2003. He was Chairman and Chief Executive Officer of Tremisis Energy Corporation LLC until December 2017. Dr. Coben was Chairman and Chief Executive Officer of both Tremisis Energy Acquisition Corporation II, a publicly held company, from July 2007 through March 2009 and of Tremisis Energy Acquisition Corporation from February 2004 to May 2006. From January 2001 to January 2004, he was a Senior Principal of Sunrise Capital Partners L.P., a private equity firm. From 1997 to January 2001, Dr. Coben was an independent consultant. From 1994 to 1996, Dr. Coben was Chief Executive Officer of Bolivian Power Company. Dr. Coben serves on the board of Freshpet, Inc. and served on the advisory board of Morgan Stanley Infrastructure II, L.P. from September 2014 through December 2016. Dr. Coben is also Executive Director of the Sustainable Preservation Initiative and a Consulting Scholar at the University of Pennsylvania Museum of Archaeology and Anthropology.
Heather Cox has been a director of NRG since March 2018. Ms. Cox currently serves as Chief Digital Health and Analytics Officer at Humana Inc. Ms. Cox was Executive Vice President, Chief Technology & Digital Officer of United Services Automobile Association, Inc. from October 2016 to March 2018.  Ms. Cox served as Chief Executive Officer, Financial Technology Division and Head of Citi FinTech of Citigroup, Inc. from November 2015 to September 2016, and as Chief Client Experience, Digital and Marketing Officer, Global Consumer Bank of Citigroup, Inc. from April 2014 to November 2015.  Prior to that, Ms. Cox served at Capital One Financial Corporation for six years, most recently as Executive Vice President, US Card Operations, Capital One from August 2011 to August 2014.  Ms. Cox also served in various managerial and executive roles at E*Trade Bank for ten years. 
Terry G. Dallas has been a director of NRG since December 2012. Previously, he served as a director of GenOn Energy, Inc. from December 2010 to December 2012. Mr. Dallas served as a director of Mirant Corporation from 2006 until December 2010. Mr. Dallas was also the former Executive Vice President and Chief Financial Officer of Unocal Corporation, an oil and gas exploration and production company prior to its merger with Chevron Corporation, from 2000 to 2005. Prior to that, Mr. Dallas held various executive finance positions in his 21-year career with Atlantic Richfield Corporation, an oil and gas company with major operations in the United States, Latin America, Asia, Europe and the Middle East. Mr. Dallas is an “audit committee financial expert” as defined by the SEC rules.
Mauricio Gutierrez has served as President and Chief Executive Officer of NRG since December 2015 and as a director of NRG since January 2016. Prior to December 2015, Mr. Gutierrez was the Executive Vice President and Chief Operating Officer of NRG from July 2010 to December 2015.  Mr. Gutierrez also served as the Interim President and Chief Executive Officer of Clearway Energy, Inc. from December 2015 to May 2016 and Executive Vice President and Chief Operating Officer of Clearway Energy, Inc. from December 2012 to December 2015.  Mr. Gutierrez has also served on the board of Clearway Energy, Inc. from December 2012 until August 2018.  Mr. Gutierrez has been with NRG since August 2004 and served in multiple executive positions within NRG including Executive Vice President - Commercial Operations from January 2009 to July 2010 and Senior Vice President - Commercial Operations from March 2008 to January 2009.  Prior to joining NRG in August 2004, Mr. Gutierrez held various commercial positions within Dynegy, Inc.Officers

William E. Hantke has been a director of NRG since March 2006. Mr. Hantke served as Executive Vice President and Chief Financial Officer of Premcor, Inc., a refining company, from February 2002 until December 2005. Mr. Hantke was Corporate Vice President of Development of Tosco Corporation, a refining and marketing company, from September 1999 until September 2001, and he also served as Corporate Controller from December 1993 until September 1999. Prior to that position, he was employedInformation required by Coopers & Lybrand as Senior Manager, Mergers and Acquisitions from 1989 until 1990. He also held various positions from 1975 until 1988 with AMAX, Inc., including Corporate Vice President, Operations Analysis and Senior Vice President, Finance and Administration, Metals and Mining. He was employedthis Item is incorporated by Arthur Young from 1970 to 1975 as Staff/Senior Accountant. Mr. Hantke was Non-Executive Chairman of Process Energy Solutions, a private alternative energy company until March 31, 2008 and served as director and Vice-Chairman of NTR Acquisition Co., an oil refining start-up, until January 2009. Mr. Hantke has served on the board of PBF Energy Inc. since February 2016.
Paul W. Hobby has been a director of NRG since March 2006. Mr. Hobby is the Managing Partner of Genesis Park, L.P., a Houston-based private equity business specializing in technology and communications investments which he founded in 1999. Mr. Hobby routinely provides management and governance services to Genesis Park portfolio companies, and is currently serving as Chairman of Texas Monthly. He previously served as the Chief Executive Officer of Alpheus Communications, Inc., a Texas wholesale telecommunications provider from 2004 to 2011, and as Former Chairman of CapRock Services Corp., the largest provider of satellite servicesreference to the global energy business from 2002 to 2006. From November 1992 until January 2001, he served as Chairman and Chief Executive Officersimilarly named section of Hobby Media Services and was ChairmanNRG's Definitive Proxy Statement for its 2022 Annual Meeting of Columbine JDS Systems, Inc. from 1995 until 1997. Mr. Hobby is former Chairman of the Houston Branch of the Federal Reserve Bank of Dallas and the Greater Houston Partnership and is former Chairman of the Texas Ethics Commission. He was an Assistant U.S. Attorney for the Southern District of Texas from 1989 to 1992, Chief of Staff to the Lieutenant Governor of Texas, Bob Bullock and an Associate at Fulbright & Jaworski from 1986 to 1989.Stockholders.
Anne C. Schaumburg has been a director of NRG since April 2005. From 1984 until her retirement in January 2002, she was Managing Director of Credit Suisse First Boston and a senior banker in the Global Energy Group. Ms. Schaumburg has worked in the Investment Banking industry for 28 years specializing in the power sector. She ran Credit Suisse's Power Group from 1994 - 1999, prior to its consolidation with Natural Resources and Project Finance, where she was responsible for assisting clients on advisory and finance assignments. Her transaction expertise, across the spectrum of utility and unregulated power, includes mergers and acquisitions, debt and equity capital market financings, project finance and leasing, utility disaggregation and privatizations. Ms. Schaumburg is also a director of Brookfield Infrastructure Partners since 2008 and chair of the Audit Committee.
Thomas H. Weidemeyer has been a director of NRG since December 2003. Until his retirement in December 2003, Mr. Weidemeyer served as Director, Senior Vice President and Chief Operating Officer of United Parcel Service, Inc., the world's largest transportation company and President of UPS Airlines. Mr. Weidemeyer became Manager of the Americas International Operation in 1989, and in that capacity directed the development of the UPS delivery network throughout Central and South America. In 1990, Mr. Weidemeyer became Vice President and Airline Manager of UPS Airlines and, in 1994, was elected its President and Chief Operating Officer. Mr. Weidemeyer became Senior Vice President and a member of the Management Committee of United Parcel Service, Inc. that same year, and he became Chief Operating Officer of United Parcel Service, Inc. in January 2001. Mr. Weidemeyer also serves as a director of The Goodyear Tire & Rubber Co., Waste Management, Inc. and Amsted Industries Incorporated.

Executive Officers
Mauricio Gutierrez has served as President and Chief Executive Officer of NRG since December 2015 and as a director of NRG since January 2016. For additional biographical information for Mr. Gutierrez, see above under "Directors."
Kirkland Andrews has served as Executive Vice President and Chief Financial Officer of NRG Energy since September 2011. Mr. Andrews also served as Executive Vice President, Chief Financial Officer of Clearway Energy, Inc. from December 2012 to November 2016. Prior to joining NRG, he served as Managing Director and Co-Head Investment Banking, Power and Utilities - Americas at Deutsche Bank Securities from June 2009 to September 2011. Prior to this, he served in several capacities at Citigroup Global Markets Inc., including Managing Director, Group Head, North American Power from November 2007 to June 2009, and Head of Power M&A, Mergers and Acquisitions from July 2005 to November 2007. Mr. Andrews serves on the board of RPM International Inc. and previously served on the board of Clearway Energy, Inc. from December 2012 until August 2018.  In his banking career, Mr. Andrews led multiple large and innovative strategic, debt, equity and commodities transactions.
David Callen has served as Senior Vice President and Chief Accounting Officer since February 2016 and Vice President and Chief Accounting Officer from March 2015 to February 2016. In this capacity, Mr. Callen is responsible for directing NRG's financial accounting and reporting activities. Mr. Callen also has served as Vice President and Chief Accounting Officer of Clearway Energy, Inc. since March 2015. Prior to this, Mr. Callen served as the Company's Vice President, Financial Planning & Analysis from November 2010 to March 2015. He previously served as Director, Finance from October 2007 through October 2010, Director,

Financial Reporting from February 2006 through October 2007, and Manager, Accounting Research from September 2004 through February 2006. Prior to NRG, Mr. Callen was an auditor for KPMG LLP in both New York City and Tel Aviv Israel from October 1996 through April 2001.
Brian Curci has served as Senior Vice President, General Counsel of NRG since March 2018. Prior to March 2018, Mr. Curci served as Deputy General Counsel and has served in various roles in over ten years with NRG, including as Corporate Secretary from October 2011 to July 2018. Prior to NRG, Mr. Curci was a corporate associate with the law firm Saul Ewing LLP in Philadelphia.
Robert Gaudette has served Senior Vice President, Business Solutions of NRG since December 2013.  In this role, Mr. Gaudette oversees NRG's broad portfolio of products and services for the commercial and industrial customers.  Prior to December 2013, Mr. Gaudette was Senior Vice President C&I and Origination, starting in August 2013, and Senior Vice President - Product Development & Origination following the acquisition of GenOn in December 2012.  Mr. Gaudette served as Senior Vice President and Chief Commercial Officer at GenOn from December 2010 to December 2012 and served as Vice President of Mirant's Mid-Atlantic business unit from August 2009 to December 2010. During his career at Mirant, which began in 2001, Mr. Gaudette worked in various other capacities including Director of West Power, Director of NYMEX Trading, Assistant to the Chief Operating Officer and NYMEX natural gas trader.
Elizabeth Killinger has served as Executive Vice President and President, NRG Retail and Reliant of NRG since February 2016.  Ms. Killinger was Senior Vice President and President, NRG Retail from June 2015 to February 2016 and Senior Vice President and President, NRG Texas Retail from January 2013 to June 2015.  Ms. Killinger has also served as President of Reliant, a subsidiary of NRG, since October 2012.  Prior to that, Ms. Killinger was Senior Vice President of Retail Operations and Reliant Residential from January 2011 to October 2012.  Ms. Killinger has been with the Company and its predecessors since 2002 and has held various operational and business leadership positions within the retail organization.  Prior to joining the Company, Ms. Killinger spent a decade providing strategy, management and systems consulting to energy, oilfield services and retail distribution companies across the U.S. and in Europe.
Christopher Moser has served as Executive Vice President, Operations of NRG since January 2018. Mr. Moser previously served as Senior Vice President, Operations of NRG, with responsibility for Plant Operations, Commercial Operations, Business Operations and Engineering and Construction, beginning in March 2016. From June 2010 to March 2016, Mr. Moser served as Senior Vice President, Commercial Operations. In this capacity, he was responsible for the optimization of the Company's wholesale generation fleet.
Code of Ethics
NRG has adopted a code of ethics entitled "NRG Code of Conduct" that applies to directors, officers and employees, including the chief executive officer and senior financial officers of NRG. It may be accessed through the "Governance" section of the Company's website at www.nrg.com. NRG also elects to disclose the information required by Form 8-K, Item 5.05, "Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics," through the Company's website, and such information will remain available on this website for at least a 12-month period. A copy of the "NRG Energy, Inc. Code of Conduct" is available in print to any stockholder who requests it.
Other information required by this Item will beis incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 20192022 Annual Meeting of Stockholders.

Item 11 — Executive Compensation
Information required by this Item will beis incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 20192022 Annual Meeting of Stockholders.



Item 12 — Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Securities Authorized for Issuance under Equity Compensation Plans
Plan Category
(a)
Number of Securities
to be Issued Upon
Exercise of
Outstanding Options,
Warrants and Rights
(b)
Weighted-Average Exercise
Price of Outstanding
Options, Warrants and
Rights
(c)
Number of Securities
Remaining Available
for Future Issuance
Under Equity Compensation
Plans (Excluding
Securities Reflected
in Column (a)
Equity compensation plans approved by security holders2,514,828 (1)$— 11,508,073 
Equity compensation plans not approved by security holders20,131 (2)20.07 — (4)
Total2,534,959 $20.07 11,508,073 (3)
Plan Category
(a)
Number of Securities
to be Issued Upon
Exercise of
Outstanding Options,
Warrants and Rights
 
(b)
Weighted-Average Exercise
Price of Outstanding
Options, Warrants and
Rights
 
(c)
Number of Securities
Remaining Available
for Future Issuance
Under Equity Compensation
Plans (Excluding
Securities Reflected
in Column (a)
 
Equity compensation plans approved by security holders4,925,061
(1)$21.15
 11,495,799
 
Equity compensation plans not approved by security holders520,182
(2)25.85
 
(4)
Total5,445,243
 $23.22
 11,495,799
(3)
(1)(1)Consists of shares issuable under the NRG LTIP and the ESPP. The NRG LTIP became effective upon the Company's emergence from bankruptcy. On April 27, 2017, the NRG LTIP was amended and restated to increase the number of shares available for issuance to 25,000,000. The ESPP, as amended and restated, was approved by the Company's stockholders on April 27, 2017, and became effective April 28, 2017. As of December 31, 2018, there were 2,931,188 shares reserved from the Company's treasury shares for the ESPP.
(2)
Consists of shares issuable under the NRG GenOn LTIP. On December 14, 2012, in connection with the Merger, NRG assumed the GenOn Energy, Inc. 2010 Omnibus Incentive Plan and changed the name to the NRG 2010 Stock Plan for GenOn Employees, or the NRG GenOn LTIP. While the GenOn Energy, Inc. 2010 Omnibus Incentive Plan was previously approved by stockholders of RRI Energy, Inc. before it became GenOn, the plan is listed as “not approved” because the NRG GenOn LTIP was not subject to separate line item approval by NRG's stockholders when the Merger (which included the assumption of this plan) was approved. As part of the Merger, NRG also assumed the GenOn Energy, Inc. 2002 Long-Term Incentive Plan, the GenOn Energy, Inc. 2002 Stock Plan, and the Mirant Corporation 2005 Omnibus Incentive Compensation Plan. NRG has no intention of making any grants or awards of its own equity securities under these plans. The number of securities to be issued upon the exercise of outstanding awards under these plans is 217,709 at a weighted-average exercise price of $34.13. See Item 15 Note 19, Stock-Based Compensation, to Consolidated Financial Statements for a discussion of the NRG GenOn LTIP.
(3)Consists of 8,564,611 shares of common stock under NRG's LTIP and 2,931,188 shares of treasury stock reserved for issuance under the ESPP.
(4)
Upon adoption of the NRG Amended and Restated LTIP effective April 27, 2017, no securities remain available for future issuance under the NRG GenOn LTIP. See Note 19, Stock-Based Compensation, for additional information.
Both the NRG LTIP and the ESPP. The NRG LTIP became effective upon the Company's emergence from bankruptcy. On April 27, 2017, the NRG LTIP was amended and restated to increase the number of shares available for issuance to 25,000,000. The ESPP, as amended and restated, was approved by the Company's stockholders on April 27, 2017, and became effective April 28, 2017. As of December 31, 2021, there were 2,636,199 shares reserved from the Company's treasury shares for the ESPP
(2)Consists of shares issuable under the NRG GenOn LTIP. The plans is listed as “not approved” because it was not subject to separate line item approval by NRG's stockholders when the Merger was approved. See Item 15 Note 21, Stock-Based Compensation, to Consolidated Financial Statements for a discussion of the NRG GenOn LTIP provide
(3)Consists of 8,871,874 shares of common stock under NRG's LTIP and 2,636,199 shares of treasury stock reserved for issuance under the ESPP.
(4)Upon adoption of the NRG Amended and Restated LTIP effective April 27, 2017, no securities remain available for future issuance under the NRG GenOn LTIP. For further discussion, see Note 21, Stock-Based Compensation

NRG LTIP currently provides for grants of stock options, restricted stock market stock units, relative performance stock units, deferred stock units and dividend equivalent rights. NRG's directors, officers and employees, as well as other individuals performing services for, or to whom an offer of employment has been extended by the Company, are eligible to receive grants under the NRG LTIP and the NRG GenOn LTIP. However, participants eligible for the NRG LTIP at the time of the Merger are not eligible to receive grants under the NRG GenOn LTIP. The purpose of the NRG LTIP and the NRG GenOn LTIP is to promote the Company's long-term growth and profitability by providing these individuals with incentives to maximize stockholder value and otherwise contribute to the Company's success and to enable the Company to attract, retain and reward the best available persons for positions of responsibility. The Compensation Committee of the Board of Directors administers the NRG LTIP and the NRG GenOn LTIP.
Other information required by this Item will beis incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 20192022 Annual Meeting of Stockholders.

80

Item 13 — Certain Relationships and Related Transactions, and Director Independence
Information required by this Item will beis incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 20192022 Annual Meeting of Stockholders.

Item 14 — Principal Accounting Fees and Services
Information required by this Item will beis incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 20192022 Annual Meeting of Stockholders.

81

PART IV

Item 15 — Exhibits, Financial Statement Schedules
(a)(1) Financial Statements
The following consolidated financial statements of NRG Energy, Inc. and related notes thereto, together with the reports thereon of KPMG LLP, Philadelphia, PA, Auditor Firm ID: 185, are included herein:
Consolidated Statements of Operations — Years ended December 31, 2018, 2017,2021, 2020, and 20162019
Consolidated Statements of Comprehensive Income/(Loss)Income — Years ended December 31, 2018, 2017,2021, 2020, and 20162019
Consolidated Balance Sheets — As of December 31, 20182021 and 20172020
Consolidated Statements of Cash Flows — Years ended December 31, 2018, 2017,2021, 2020, and 20162019
Consolidated Statements of Stockholders' Equity — Years ended December 31, 2018, 2017,2021, 2020, and 20162019
Notes to Consolidated Financial Statements
(a)(2) Financial Statement Schedule
The following Consolidated Financial Statement Schedule of NRG Energy, Inc. is filed as part of Item 15 of this report and should be read in conjunction with the Consolidated Financial Statements.
Schedule II — Valuation and Qualifying Accounts
All other schedules for which provision is made in the applicable accounting regulation of the Securities and Exchange Commission are not required under the related instructions or are inapplicable, and therefore, have been omitted.

(a)(3) Exhibits: See Exhibit Index submitted as a separate section of this report.
(b) Exhibits
See Exhibit Index submitted as a separate section of this report.
(c) Not applicable



82


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM




TheTo the Stockholders and Board of Directors and Stockholders
NRG Energy, Inc.:
Opinion on the Consolidated Financial Statements
We have audited the accompanying consolidated balance sheets of NRG Energy, Inc. and subsidiaries (the Company) as of December 31, 20182021 and 2017,2020, the related consolidated statements of operations, comprehensive income/(loss),income, stockholders' equity, and cash flows for each of the years in the three‑yearthree-year period ended December 31, 2018,2021, and the related notes and financial statement schedule II (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 20182021 and 2017,2020, and the results of its operations and its cash flows for each of the years in the three‑yearthree-year period ended December 31, 2018,2021, in conformity with U.S. generally accepted accounting principles.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2018,2021, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 28, 201924, 2022 expressed an unqualified opinion on the effectiveness of the Company's internal control over financial reporting.
Change in Accounting Principle
As discussed in Note 2 to the consolidated financial statements, effective January 1, 2018, the Company has adopted Financial Accounting Standard Board-Accounting Standards Codification Topic 606, Revenue from Contracts with Customers,and related amendments.
Basis for Opinion
These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.


(signed)Critical Audit Matters
The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Evaluation of the sufficiency of audit evidence over operating revenues
As discussed in Note 3 to the consolidated financial statements, the Company had $26.989 billion of operating revenues. Operating revenue is derived from various revenue streams in different geographic markets and the Company’s processes and related information technology (IT) systems used to record revenue differ for each of these revenue streams.
We identified the evaluation of the sufficiency of audit evidence over operating revenues as a critical audit matter which required a high degree of auditor judgment due to the number of revenue streams and IT systems involved in the revenue recognition process. This included determining the revenue streams over which procedures were to be performed and evaluating the nature and extent of evidence obtained over the individual revenue streams as well as operating revenue in the aggregate. It also included the involvement of IT professionals with specialized skills and knowledge to assist in the performance of certain procedures.
83

The following are the primary procedures we performed to address this critical audit matter. We, with the assistance of IT professionals, applied auditor judgment to determine the revenue streams over which procedures were performed as well as the nature and extent of such procedures. For certain revenue streams, we evaluated the design and tested the operating effectiveness of certain internal controls over the Company’s revenue recognition processes. For certain revenue streams, we involved IT professionals, who assisted in testing certain IT applications used by the Company in its revenue recognition processes. In addition, we assessed recorded revenue for a selection of transactions by comparing the amounts recognized to underlying documentation, including contracts with customers. In addition, we evaluated the sufficiency of audit evidence obtained over operating revenues by assessing the results of procedures performed, including the appropriateness of such evidence.
Fair value of customer relationship intangible assets

As discussed in Note 4 to the consolidated financial statements, the Company acquired Direct Energy on January 5, 2021 for consideration of $3.724 billion. The Company recorded the identifiable assets acquired and liabilities assumed at fair value at the acquisition date, including $1.277 billion of customer relationship intangible assets which represent the generation of future income reflective of Direct Energy's customer base. Customer relationship intangible assets were valued using the excess earnings method of the income approach.
We identified the evaluation of the fair value of customer relationship intangible assets acquired in the Direct Energy transaction as a critical audit matter. A higher degree of auditor judgment was required to evaluate the customer attrition used in the excess earnings method. Changes in the customer attrition could have a significant impact on the forecasted future cash flows used in the excess earnings method and the resulting fair value of the customer relationship intangible assets.
The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the Company's acquisition-date valuation process, including controls over the development of the customer attrition. We performed sensitivity analyses over the Company's customer attrition used to determine the estimated fair value of the customer relationship intangible assets to assess the effect of changes in that assumption on the Company's determination of fair value. We evaluated the customer attrition by comparing it to the Company's actual customer attrition.
/s/ KPMG LLP

We have served as the Company's auditor since 2004.


Philadelphia, Pennsylvania
February 28, 201924, 2022







84


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS
 For the Year Ended December 31,
(In millions, except per share amounts)2018 2017 2016
Operating Revenues
    
Total operating revenues$9,478
 $9,074
 $8,915
Operating Costs and Expenses
    
Cost of operations7,108
 6,886
 6,676
Depreciation and amortization421
 596
 756
Impairment losses99
 1,534
 483
Selling, general and administrative799
 836
 1,032
Reorganization costs90
 44
 
Development costs11
 22
 48
Total operating costs and expenses8,528
 9,918
 8,995
Other income - affiliate
 87
 193
Gain/(loss) on sale of assets32
 16
 (80)
Operating Income/(Loss)982
 (741) 33
Other Income/(Expense)
    
Equity in earnings/(losses) of unconsolidated affiliates9
 (14) (18)
Impairment losses on investments(15) (79) (268)
Other income, net18
 51
 47
Loss on debt extinguishment, net(44) (49) (142)
Interest expense(483) (557) (583)
Total other expense(515) (648) (964)
Income/(Loss) from Continuing Operations Before Income Taxes467
 (1,389) (931)
Income tax expense/(benefit)7
 (44) 25
Net Income/(Loss) from Continuing Operations460
 (1,345) (956)
(Loss)/income from discontinued operations, net of income tax(192) (992) 65
Net Income/(Loss)268
 (2,337) (891)
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests
 (184) (117)
Net Income/(Loss) Attributable to NRG Energy, Inc.268
 (2,153) (774)
Dividends for preferred shares
 
 5
Gain on redemption of preferred shares
 
 (78)
Income/(Loss) Available for Common Stockholders$268
 $(2,153) $(701)
Earnings/(Loss) Per Share Attributable to NRG Energy, Inc. Common Stockholders     
Weighted average number of common shares outstanding — basic304
 317
 316
Income/(loss) from continuing operations per weighted average common share — basic$1.51

$(3.66)
$(2.42)
(Loss)/income from discontinued operations per weighted average common share — basic$(0.63)
$(3.13)
$0.20
Net Income/(Loss) per Weighted Average Common Share — Basic$0.88
 $(6.79) $(2.22)
Weighted average number of common shares outstanding — diluted308

317

316
Income/(loss) from continuing operations per weighted average common share — diluted$1.49

$(3.66)
$(2.42)
(Loss)/income from discontinued operations per weighted average common share — diluted$(0.62)
$(3.13)
$0.20
Net Income/(Loss) per Weighted Average Common Share — Diluted$0.87

$(6.79)
$(2.22)
Dividends Per Common Share$0.12

$0.12

$0.24
 For the Year Ended December 31,
(In millions, except per share amounts)202120202019
Operating Revenues
Total operating revenues$26,989 $9,093 $9,821 
Operating Costs and Expenses
Cost of operations (excluding depreciation and amortization shown below)20,482 6,540 7,303 
Depreciation and amortization785 435 373 
Impairment losses544 75 
Selling, general and administrative costs1,293 810 760 
Provision for credit losses698 108 95 
Acquisition-related transaction and integration costs93 23 
Total operating costs and expenses23,895 7,991 8,538 
Gain on sale of assets247 
Operating Income3,341 1,105 1,290 
Other Income/(Expense)
Equity in earnings of unconsolidated affiliates17 17 
Impairment losses on investments— (18)(108)
Other income, net63 67 66 
Loss on debt extinguishment(77)(9)(51)
Interest expense(485)(401)(413)
Total other expense(482)(344)(504)
Income from Continuing Operations Before Income Taxes2,859 761 786 
Income tax expense/(benefit)672 251 (3,334)
Income from Continuing Operations2,187 510 4,120 
Income from discontinued operations, net of income tax— — 321 
Net Income2,187 510 4,441 
Less: Net income attributable to redeemable noncontrolling interest— — 
Net Income Attributable to NRG Energy, Inc.$2,187 $510 $4,438 
Income Per Share Attributable to NRG Energy, Inc. Common Stockholders
Weighted average number of common shares outstanding — basic245 245 262 
Income from continuing operations per weighted average common share — basic$8.93 $2.08 $15.71 
Income from discontinued operations per weighted average common share — basic$— $— $1.23 
Net Income per Weighted Average Common Share — Basic$8.93 $2.08 $16.94 
Weighted average number of common shares outstanding — diluted245 246 264 
Income from continuing operations per weighted average common share — diluted$8.93 $2.07 $15.59 
Income from discontinued operations per weighted average common share — diluted$— $— $1.22 
Net Income per Weighted Average Common Share — Diluted$8.93 $2.07 $16.81 
See notes to Consolidated Financial Statements.Statements

85


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)
 For the Year Ended December 31,
 2018 2017 2016
 (In millions)
Net Income/(Loss)$268

$(2,337)
$(891)
Other Comprehensive (Loss)/Income, net of tax
    
Unrealized gain on derivatives, net of income tax expense of $0, $1, and $123
 13
 35
Foreign currency translation adjustments, net of income tax benefit of $0, $(2), and $0(11) 12
 (1)
Available-for-sale securities, net of income tax expense of $0, $10, and $01
 (8) 1
Defined benefit plan, net of income tax (benefit)/expense of $0, $(21), and $0(35) 46
 3
Other comprehensive (loss)/income(22) 63
 38
Comprehensive Income/(Loss)246
 (2,274) (853)
Less: Comprehensive income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests14
 (179) (117)
Comprehensive Income/(Loss) Attributable to NRG Energy, Inc.232
 (2,095) (736)
Dividends for preferred shares



5
Gain on redemption of preferred shares
 
 (78)
Comprehensive Income/(Loss) Available for Common Stockholders$232
 $(2,095) $(663)
INCOME
For the Year Ended December 31,
(In millions)202120202019
Net Income$2,187 $510 $4,441 
Other Comprehensive Income/(Loss), net of tax
Foreign currency translation adjustments, net of income tax(5)(1)
Available-for-sale securities, net of income tax— — (19)
Defined benefit plans, net of income tax85 (22)(78)
Other comprehensive income/(loss)80 (14)(98)
Comprehensive Income2,267 496 4,343 
Less: Net income attributable to redeemable noncontrolling interest— — 
Comprehensive Income Attributable to NRG Energy, Inc.$2,267 $496 $4,340 
See notes to Consolidated Financial Statements.Statements

86


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
 As of December 31,
 2018 2017
 (In millions)
ASSETS   
Current Assets   
Cash and cash equivalents$563

$770
Funds deposited by counterparties33
 37
Restricted cash17
 279
Accounts receivable - trade1,019
 900
Inventory412

453
Derivative instruments764
 624
Cash collateral posted in support of energy risk management activities287
 171
Accounts receivable - affiliate5

180
Prepayments and other current assets302

163
Current assets - held-for-sale1
 116
Current assets - discontinued operations197

744
Total current assets3,600
 4,437
Property, plant and equipment, net3,048

5,974
Other Assets   
Equity investments in affiliates412
 182
Goodwill573
 539
Intangible assets, net591

507
Nuclear decommissioning trust fund663
 692
Derivative instruments317
 159
Deferred income taxes46

6
Other non-current assets289
 310
Non-current assets - held-for-sale77
 43
Non-current assets - discontinued operations1,012

10,506
Total other assets3,980
 12,944
Total Assets$10,628
 $23,355
 As of December 31,
(In millions)20212020
ASSETS  
Current Assets  
Cash and cash equivalents$250 $3,905 
Funds deposited by counterparties845 19 
Restricted cash15 
Accounts receivable, net3,245 904 
Uplift securitization proceeds receivable from ERCOT689 — 
Inventory498 327 
Derivative instruments4,613 560 
Cash collateral paid in support of energy risk management activities291 50 
Prepayments and other current assets395 257 
Total current assets10,841 6,028 
Property, plant and equipment, net1,688 2,547 
Other Assets
Equity investments in affiliates157 346 
Operating lease right-of-use assets, net271 301 
Goodwill1,795 579 
Intangible assets, net2,511 668 
Nuclear decommissioning trust fund1,008 890 
Derivative instruments2,527 261 
Deferred income taxes2,155 3,066 
Other non-current assets229 216 
Total other assets10,653 6,327 
Total Assets$23,182 $14,902 
See notes to Consolidated Financial Statements.Statements

87


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Continued)
 As of December 31,
 2018 2017
 (In millions, except share data)
LIABILITIES AND STOCKHOLDERS' EQUITY   
Current Liabilities   
Current portion of long-term debt and capital leases$72

$204
Accounts payable 862
 684
Accounts payable - affiliate1

57
Derivative instruments673

537
Cash collateral received in support of energy risk management activities33
 37
Accrued expenses and other current liabilities680
 756
Accrued expenses and other current liabilities - affiliate
 161
Current liabilities - held for sale5
 72
Current liabilities - discontinued operations72
 846
Total current liabilities2,398
 3,354
Other Liabilities   
Long-term debt and capital leases6,449

9,180
Nuclear decommissioning reserve282
 269
Nuclear decommissioning trust liability371
 415
Postretirement and other benefit obligations435
 458
Derivative instruments304

143
Deferred income taxes65
 21
Out-of-market contracts, net121
 129
Other non-current liabilities718
 534
Non-current liabilities - held-for-sale65
 8
Non-current liabilities - discontinued operations635

6,798
Total non-current liabilities9,445
 17,955
Total Liabilities11,843
 21,309
Redeemable noncontrolling interest in subsidiaries19
 78
Commitments and Contingencies
 
Stockholders' Equity   
Common stock; $0.01 par value; 500,000,000 shares authorized; 420,288,886 and 418,323,134 shares issued; and 283,650,039 and 316,743,089 shares outstanding at December 31, 2018 and 20174
 4
Additional paid-in capital8,510
 8,376
Accumulated deficit(6,022) (6,268)
Treasury stock, at cost; 136,638,847 and 101,580,045 shares at December 31, 2018 and 2017(3,632) (2,386)
Accumulated other comprehensive loss(94) (72)
Noncontrolling interest
 2,314
Total Stockholders' Equity(1,234) 1,968
Total Liabilities and Stockholders' Equity$10,628
 $23,355
 As of December 31,
(In millions, except share data)20212020
LIABILITIES AND STOCKHOLDERS' EQUITY  
Current Liabilities 
Current portion of long-term debt and finance leases$$
Current portion of operating lease liabilities81 69 
Accounts payable 2,274 649 
Derivative instruments3,387 499 
Cash collateral received in support of energy risk management activities845 19 
Accrued expenses and other current liabilities1,324 678 
Total current liabilities7,915 1,915 
Other Liabilities 
Long-term debt and finance leases7,966 8,691 
Non-current operating lease liabilities236 278 
Nuclear decommissioning reserve321 303 
Nuclear decommissioning trust liability666 565 
Derivative instruments1,412 385 
Deferred income taxes73 19 
Other non-current liabilities993 1,066 
Total other liabilities11,667 11,307 
Total Liabilities19,582 13,222 
Commitments and Contingencies00
Stockholders' Equity
Common stock; $0.01 par value; 500,000,000 shares authorized; 423,547,174 and 423,057,848 shares issued; and 243,753,899 and 244,231,933 shares outstanding at December 31, 2021 and 2020, respectively
Additional paid-in capital8,531 8,517 
Retained earnings/(accumulated deficit)464 (1,403)
Treasury stock, at cost; 179,793,275 and 178,825,915 shares at December 31, 2021 and 2020, respectively(5,273)(5,232)
Accumulated other comprehensive loss(126)(206)
Total Stockholders' Equity3,600 1,680 
Total Liabilities and Stockholders' Equity$23,182 $14,902 
See notes to Consolidated Financial Statements.Statements



88


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
 For the Year Ended December 31,
(In millions)202120202019
Cash Flows from Operating Activities
Net income$2,187 $510 $4,441 
Income from discontinued operations, net of income tax— — 321 
Income from continuing operations2,187 510 4,120 
Adjustments to reconcile net income to net cash provided by operating activities:
Distributions from and equity in earnings of unconsolidated affiliates20 45 14 
Depreciation and amortization785 435 373 
Accretion of asset retirement obligations30 45 51 
Provision for credit losses698 108 95 
Amortization of nuclear fuel51 54 52 
Amortization of financing costs and debt discounts39 48 26 
Loss on debt extinguishment77 51 
Amortization of in-the-money contracts and emission allowances106 70 72 
Amortization of unearned equity compensation21 22 20 
Net gain on sale of assets and disposal of assets(261)(23)(23)
Impairment losses544 93 113 
Changes in derivative instruments(3,626)137 34 
Changes in deferred income taxes and liability for uncertain tax benefits604 228 (3,353)
Changes in collateral deposits in support of risk management activities797 127 105 
Changes in nuclear decommissioning trust liability40 51 37 
Oil lower of cost or market adjustment— 29 — 
Uplift securitization proceeds receivable from ERCOT(689)— — 
Cash (used)/provided by changes in other working capital, net of acquisition and disposition effects:
Accounts receivable - trade(1,232)— 
Inventory(61)27 22 
Prepayments and other current assets31 29 
Accounts payable476 (56)(177)
Accrued expenses and other current liabilities(55)(42)(75)
Other assets and liabilities(89)(84)(186)
Cash provided by continuing operations493 1,837 1,405 
Cash provided by discontinued operations— — 
Net Cash Provided by Operating Activities$493 $1,837 $1,413 
Cash Flows from Investing Activities
Payments for acquisitions of assets, businesses and leases$(3,559)$(284)$(355)
Capital expenditures(269)(230)(228)
Net (purchases)/sales of emissions allowances— (10)11 
Investments in nuclear decommissioning trust fund securities(751)(492)(416)
Proceeds from sales of nuclear decommissioning trust fund securities710 439 381 
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees830 81 1,294 
Changes in investments in unconsolidated affiliates— (91)
Net contributions to discontinued operations— — (44)
Other— — 
Cash (used)/provided by continuing operations(3,039)(494)558 
Cash used by discontinued operations— — (2)
Net Cash (Used)/Provided by Investing Activities$(3,039)$(494)$556 
89


 For the Year Ended December 31,

2018 2017 2016
 (In millions)
Cash Flows from Operating Activities    
Net income/(loss)$268

$(2,337)
$(891)
(Loss)/income from discontinued operations, net of income tax(192)
(992)
65
Income/(loss) from continuing operations460

(1,345)
(956)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:     
Distributions and equity in earnings of unconsolidated affiliates46

102
 67
Depreciation, amortization and accretion459
 596
 772
Provision for bad debts85
 68
 45
Amortization of nuclear fuel48
 51
 49
Amortization of financing costs and debt discount/premiums29
 29
 33
Adjustment for debt extinguishment44
 49
 142
Amortization of intangibles and out-of-market contracts45
 54
 68
Amortization of unearned equity compensation25
 35
 10
Net (gain)/loss on sale of assets and equity/cost method investments(49) (9) 139
Impairment losses114
 1,614
 751
Changes in derivative instruments37
 (170) 16
Changes in deferred income taxes and liability for uncertain tax benefits5
 13
 (12)
Changes in collateral deposits in support of risk management activities(105) (80) 396
Changes in nuclear decommissioning trust liability60
 11
 41
GenOn settlement, net of insurance proceeds(63)



Net loss on deconsolidation of Agua Caliente and Ivanpah projects13




Cash provided/(used) by changes in other working capital, net of acquisition and disposition effects:     
Accounts receivable - trade(83) (83) 24
Inventory31
 143
 60
Prepayments and other current assets(41) (187) (120)
Accounts payable113
 44
 (59)
Accrued expenses and other current liabilities(166) (88) (61)
Other assets and liabilities(104) 9
 32
Cash provided by continuing operations1,003

856

1,437
Cash provided by discontinued operations374

754

471
Net Cash Provided by Operating Activities1,377
 1,610
 1,908
Cash Flows from Investing Activities
    
Acquisition of businesses, net of cash acquired(243) (14) 
Capital expenditures(388) (254) (544)
Proceeds from renewable energy grants
 8
 36
Net proceeds from sale/(purchases) of emission allowances19
 66
 (1)
Investments in nuclear decommissioning trust fund securities(572) (512) (551)
Proceeds from sales of nuclear decommissioning trust fund securities513
 501
 510
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees1,564
 430
 241
Deconsolidation of Agua Caliente and Ivanpah projects(268)



Changes in investments in unconsolidated affiliates(39) (57) (33)
Net (contributions to)/distributions from discontinued operations(60)
150

(58)
Other(6) 22
 31
Cash provided/(used) by continuing operations520

340

(369)
Cash used by discontinued operations(725)
(979)
(388)
Net Cash Used by Investing Activities(205)
(639)
(757)
      
 For the Year Ended December 31,
(In millions)202120202019
Cash Flows from Financing Activities
Proceeds from issuance of long-term debt$1,100 $3,234 $1,833 
Payments for short and long-term debt(1,861)(335)(2,571)
Payments of dividends to common stockholders(319)(295)(32)
Net receipts/(payments) from settlement of acquired derivatives that include financing elements938 (7)(4)
Payments for share repurchase activity(48)(229)(1,440)
Payments for debt extinguishment costs(65)(5)(26)
Payments of debt issuance costs(18)(75)(35)
Net (repayments)/proceeds of Revolving Credit Facility— (83)83 
Proceeds from issuance of common stock
Purchase of and distributions to noncontrolling interests from subsidiaries— (2)(2)
Cash (used)/provided by continuing operations(272)2,204 (2,191)
Cash provided by discontinued operations— — 43 
Net Cash (Used)/Provided by Financing Activities$(272)$2,204 $(2,148)
Effect of exchange rate changes on cash and cash equivalents(2)(2)— 
Change in Cash from discontinued operations— — 49 
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash(2,820)3,545 (228)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period3,930 385 613 
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period$1,110 $3,930 $385 

For further discussion of supplemental cash flow information see Note 26, Cash Flow Information
 For the Year Ended December 31,

2018 2017 2016
 (In millions)
      
Cash Flows from Financing Activities     
Payments of dividends to preferred and common stockholders(37) (38) (76)
Payments for treasury stock(1,250) 
 
Payments for preferred shares



(226)
Payments for debt extinguishment costs(32)
(42)
(121)
Net distributions to noncontrolling interest from subsidiaries(16) (30) (27)
Proceeds/(payments) from issuance of common stock21
 (2) 1
Proceeds from issuance of long-term debt1,100
 1,178
 4,412
Payments of debt issuance costs(19) (18) (61)
Payments for short and long-term debt(1,734) (1,884) (5,146)
Receivable from affiliate(26)
(125)

Other(4) (8) (7)
Cash used by continuing operations(1,997)
(969)
(1,251)
Cash provided/(used) by discontinued operations471

(169)
483
Net Cash Used by Financing Activities(1,526)
(1,138)
(768)
Effect of exchange rate changes on cash and cash equivalents1
 (1) 1
Change in Cash from discontinued operations120

(394)
566
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash(473)
226

(182)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period1,086

860

1,042
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period$613

$1,086

$860

See notes to Consolidated Financial Statements.Statements

90


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(In millions)
Common
Stock
Additional
Paid-In
Capital
Retained Earnings/ (Accumulated Deficit)
Treasury
Stock
Accumulated
Other
Comprehensive
Loss
Total
Stock-holders'
Equity
Balances at December 31, 2018$$8,510 $(6,022)$(3,632)$(94)$(1,234)
Net income attributable to NRG Energy, Inc.4,438 4,438 
Other comprehensive loss(98)(98)
Shares reissuance for ESPP
Share repurchases(1,409)(1,409)
Equity-based awards activity, net(a)
(16)(16)
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(32)(32)
Balance at December 31, 2019$$8,501 $(1,616)$(5,039)$(192)$1,658 
Net income510 510 
Other comprehensive loss(14)(14)
Repurchase of partners' equity interest in VIE18 18 
Shares reissuance for ESPP
Share repurchases(197)(197)
Equity-based awards activity, net(a)
(3)(3)
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(297)(297)
Balance at December 31, 2020$$8,517 $(1,403)$(5,232)$(206)$1,680 
Net income2,187 2,187 
Other comprehensive income80 80 
Shares reissuance for ESPP
Share repurchases(44)(44)
Equity-based awards activity, net(a)
12 12 
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(320)(320)
Balance at December 31, 2021$$8,531 $464 $(5,273)$(126)$3,600 
(a)Includes $(9) million, $(27) million and $(36) million of equivalent shares purchased in lieu of tax withholding on equity compensation issuances for the years ended December 31, 2021, 2020 and 2019, respectively
 
Common
Stock
 
Additional
Paid-In
Capital
 Accumulated Deficit 
Treasury
Stock
 
Accumulated
Other
Comprehensive
Loss
 
Noncon- trolling
Interest
 
Total
Stock-holders'
Equity
 (In millions)
Balances at December 31, 2015$4
 $8,296
 $(3,007) $(2,413) $(173) $2,727
 5,434
Net loss    (774)     (79) (853)
Other comprehensive income        38
 

 38
Sale of assets to NRG Yield, Inc.  59
       (16) 43
ESPP share purchases  (2) (6) 14
     6
Equity-based compensation  5
 1
       6
Common stock dividends    (74)       (74)
Dividend for preferred shares    (5)       (5)
Gain on redemption of preferred shares    78
       78
Distributions to noncontrolling interests          (158) (158)
Dividends paid to NRG Yield, Inc.          (92) (92)
Contributions from noncontrolling interests    

 

   30
 30
Redemption of noncontrolling interests          (7) (7)
Balances at December 31, 2016$4
 $8,358
 $(3,787) $(2,399) $(135) $2,405
 $4,446
Net loss    (2,153)     (98) (2,251)
Other comprehensive income        51
   51
Sale of assets to NRG Yield, Inc.  (25)       20
 (5)
ESPP share purchases  (3) (4) 13
     6
Equity-based compensation  29
 

       29
Common stock dividends    (38)       (38)
Distributions to noncontrolling interests          (65) (65)
Dividends paid to NRG Yield, Inc.          (108) (108)
Contributions from noncontrolling interests          160
 160
Early adoption of new accounting standards  17
 (286)   12
 

 (257)
Balances at December 31, 2017$4
 $8,376
 $(6,268) $(2,386) $(72) $2,314
 $1,968
Net income    268
     26
 294
Other comprehensive loss        (22) 

 (22)
Sale of assets to NRG Yield, Inc.  8
       8
 16
ESPP share purchases  (2) 

 4
     2
Share repurchases      (1,250)     (1,250)
Equity-based compensation  27
 

       27
Common stock dividends    (37)       (37)
Distributions to noncontrolling interests          (43) (43)
Dividends paid to NRG Yield, Inc.          (61) (61)
Contributions from noncontrolling interests          304
 304
   Adoption of new accounting standards    15
       15
Sale of NRG Yield and other business          (2,548) (2,548)
Equity component of convertible senior notes  101
         101
Balances at December 31, 2018$4

$8,510

$(6,022)
$(3,632)
$(94)
$

$(1,234)
(b)Dividends per common share were $1.30, $1.20 and $0.12 for each of the years ended December 31,2021, 2020 and 2019, respectively

See notes to Consolidated Financial Statements.Statements

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NRG ENERGY, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Note 1 — Nature of Business
General
NRG Energy, Inc., or NRG or the Company, is an energya consumer services company built on dynamic retail brands with diverse generation assets.brands. NRG brings the power of energy to consumerscustomers by producing and selling and delivering electricityenergy and related products and services, in major competitive power marketsnation-wide in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG is perfectingsells power, natural gas, home and power services, and develops innovative, sustainable solutions, predominately under the integrated model by balancing retail load with generation supply within its deregulated markets, while evolving to a customer-driven business.brand names NRG, Reliant, Direct Energy, Green Mountain Energy, Stream, and XOOM Energy. The Company sellshas a customer base that includes approximately 6 million Home customers as well as commercial, industrial, and wholesale customers, supported by approximately 18,000 MW of generation.
On January 5, 2021, the Company acquired Direct Energy, which had been a North American subsidiary of Centrica. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy services, and innovative, sustainablerelated products and services directlyin North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increases NRG's retail portfolio by over 3 million customers and complements its integrated model. It also broadens the Company's presence in the Northeast and into states and locales where it does not currently operate, supporting NRG's objective to diversify its business. See Note 4, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements for further discussion of the acquisition of Direct Energy.
On December 1, 2021, the Company sold approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. NRG received $623 million of net proceeds, after purchase price adjustments pursuant to the terms of the Purchase and Sale Agreement entered into on February 28, 2021. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released, leading the Company to announce the near-term retirement of approximately 1,600 MW of its PJM coal generating assets in June 2022. On July 30, 2021, PJM identified reliability impacts resulting from the proposed deactivation of one of those assets, Indian River Unit 4. On August 27, 2021 the Company notified PJM that it would continue operations at Indian River Unit 4 until the reliability upgrades identified by PJM were completed, provided that the unit receives a satisfactory and compensatory reliability must run arrangement. See Item 15 Note 11, Asset Impairments, to the Consolidated Financial Statements for further discussion. The Company is continuing to evaluate the viability of the remaining PJM generating assets.
The Company manages its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus.
The Company's business is segmented as follows:
Texas, which includes all activity related to customer, plant and market operations in Texas;
East, which includes all activity related to customer, plant and market operations in the East;
West/Services/Other, which includes the following assets and activities: (i) all activity related to plant and market operations in the West and Canada, (ii) the Services businesses (iii) activity related to the Cottonwood facility, (iv) the remaining renewables activity, including the Company’s equity method investment in Ivanpah Master Holdings, LLC, and (v) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and
Corporate activities.

Note 2 — Summary of Significant Accounting Policies
Basis of Presentation and Principles of Consolidation
The Company's consolidated financial statements have been prepared in accordance with U.S. GAAP. The ASC, established by the FASB, is the source of authoritative U.S. GAAP to be applied by nongovernmental entities. In addition, the rules and interpretative releases of the SEC under authority of federal securities laws are also sources of authoritative U.S. GAAP for SEC registrants.
The consolidated financial statements include NRG's accounts and operations and those of its subsidiaries in which the Company has a controlling interest. All significant intercompany transactions and balances have been eliminated in consolidation. The usual condition for a controlling financial interest is ownership of a majority of the voting interests of an entity. However, a controlling financial interest may also exist through arrangements that do not involve controlling voting
92


interests. As such, NRG applies the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or not controlled through its voting interests, referred to as a VIE, should be consolidated.
Cash and Cash Equivalents
Cash and cash equivalents include highly liquid investments with an original maturity of three months or less at the time of purchase.
Funds Deposited by Counterparties
Funds deposited by counterparties consist of cash held by the Company as a result of collateral posting obligations from its counterparties. Though some amounts are segregated into separate accounts, not all funds are contractually restricted. Based on the Company's intention, these funds are not available for the payment of general corporate obligations; however, they are available for liquidity management. Depending on market fluctuations and the settlement of the underlying contracts, the Company will refund this collateral to the hedge counterparties pursuant to the terms and conditions of the underlying trades. Since collateral requirements fluctuate daily and the Company cannot predict if any collateral will be held for more than twelve months, the funds deposited by counterparties are classified as a current asset on the Company's balance sheet, with an offsetting liability for this cash collateral received within current liabilities.
Winter Storm Uri Uplift Securitization Proceeds
The Texas Legislature passed HB 4492 for ERCOT to mitigate exceptionally high price adders and ancillary service costs incurred by LSEs during Winter Storm Uri. HB 4492 authorized ERCOT to obtain $2.1 billion of financing to distribute to LSEs that were charged and paid to ERCOT those highly priced ancillary service and ORDPA during Winter Storm Uri.
In December 2021, ERCOT filed with the PUCT a calculation of each LSE’s share of proceeds based on the settlement methodology. The Company accounted for the proceeds we will receive by analogy to the contribution model within ASC 958-605, Not-for-Profit Entities- Revenue Recognition and the grant model within IAS 20, Accounting for Government Grants and Disclosure of Government Assistance, as a reduction to expenses in the consolidated statements of operations in the annual period for which the proceeds are intended to compensate. The Company expects to receive proceeds of $689 million from ERCOT in the second quarter of 2022 and we concluded that the threshold for recognizing a receivable was met in December 2021 as the amounts to be received are determinable and ERCOT was directed by its governing body, the PUCT, to take all actions required to effectuate the $2.1 billion funding approved in the DOO. The associated expense reduction is reflected in Cost of operations within our consolidated statements of operations as that is where the initial costs which are being compensated for were recorded.
Credit Losses
On January 1, 2020, the Company adopted ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, or ASU No. 2016-13, using the modified retrospective approach. Following the adoption of the new standard, the Company’s process of estimating expected credit losses remains materially consistent with its historical practice. Information prior to January 1, 2020, which was previously referred to as the allowance and provision for bad debt, has not been restated and continues to be reported under the accounting standards in effect for that period.
Retail trade receivables are reported on the balance sheet net of the allowance for credit losses. The Company accrues an allowance for current expected credit losses based on (i) estimates of uncollectible revenues by analyzing accounts receivable aging and current and reasonable forecasts of expected economic factors including, but not limited to, unemployment rates and weather-related events, (ii) historical collections and delinquencies, and (iii) counterparty credit ratings for commercial and industrial customers. The Company writes off customer contract receivable balances against the allowance for credit losses when it is determined a receivable is uncollectible.
The following table represents the activity in the allowance for credit losses for the year ended December 31, 2021:
Year Ended December 31,
(In millions)20212020
Beginning balance$67 $43 
Acquired balance from Direct Energy112 — 
Provision for credit losses(a)
698 108 
Write-offs(224)(101)
Recoveries collected30 17 
Ending balance(a)
$683 $67 
(a)Includes bilateral finance hedging risk of $403 million accounted for under ASC 815
93



The increase in the provision for credit losses during the year ended December 31, 2021, compared to 2020 was primarily due to the impacts of Winter Storm Uri on bilateral finance hedging risk of $403 million, counterparty credit risk of $126 million and ERCOT default shortfall payments of $67 million.

Restricted Cash
The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of cash flows.
 Year Ended December 31,
(In millions)202120202019
Cash and cash equivalents$250 $3,905 $345 
Funds deposited by counterparties845 19 32 
Restricted cash15 
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statements of cash flows$1,110 $3,930 $385 
Restricted cash consists primarily of funds held to satisfy the requirements of certain debt agreements and funds held within the Company's projects that are restricted in their use.
Inventory
Inventory is valued at the lower of weighted average cost or market, and consists principally of natural gas, fuel oil, coal, spare parts and finished goods. The Company removes natural gas inventory in the delivery of goods to customers and as they are used in the production of electricity or steam. The Company removes fuel oil and coal inventories as they are used in the production of electricity. Spare parts inventory is valued at weighted average cost. The Company removes these inventories when they are used for repairs, maintenance or capital projects. The Company expects to recover the natural gas, fuel oil, coal and spare parts costs in the ordinary course of business. Inventory is valued at the lower of cost or net realizable value with cost being determined on a first in first out basis for finished goods and weighted average cost method for all other inventories. The Company removes these inventories as they are sold to customers. Sales of inventory are classified as an operating activity in the consolidated statements of cash flows.
Property, Plant and Equipment
Property, plant and equipment are stated at cost or, in the case of business acquisitions, fair value; however, impairment adjustments are recorded whenever events or changes in circumstances indicate that their carrying values may not be recoverable. NRG also classifies nuclear fuel related to the Company's 44% ownership interest in STP as part of the Company's property, plant, and equipment. Significant additions or improvements extending asset lives are capitalized as incurred, while repairs and maintenance that do not improve or extend the life of the respective asset are charged to expense as incurred. Depreciation, other than nuclear fuel, is computed using the straight-line method, while nuclear fuel is amortized based on units of production over the estimated useful lives. Certain assets and their related accumulated depreciation amounts are adjusted for asset retirements and disposals with the resulting gain or loss included in cost of operations in the consolidated statements of operations.
Asset Impairments
Long-lived assets that are held and used are reviewed for impairment whenever events or changes in circumstances indicate carrying values may not be recoverable. Such reviews are performed in accordance with ASC 360. An impairment loss is indicated if the total future estimated undiscounted cash flows expected from an asset are less than its carrying value. An impairment charge is measured by the difference between an asset's carrying amount and fair value with the difference recorded in operating costs and expenses in the consolidated statements of operations. Fair values are determined by a variety of valuation methods, including third-party appraisals, sales prices of similar assets, and present value techniques.
Investments accounted for by the equity method are reviewed for impairment in accordance with ASC 323, Investments-Equity Method and Joint Ventures, or ASC 323, which requires that a loss in value of an investment that is an other-than-temporary decline should be recognized. The Company identifies and measures losses in the value of equity method investments based upon a comparison of fair value to carrying value. For further discussion of these matters, refer to Note 11, Asset Impairments.
94


Development Costs and Capitalized Interest
Development costs include project development costs, which are expensed in the preliminary stages of a project and capitalized when the project is deemed to be commercially viable. Commercial viability is determined by one or a series of actions including, among others, Board of Director approval pursuant to a formal project plan that subjects the Company to significant future obligations that can only be discharged by the use of a Company asset. When a project is available for operations, capitalized interest and capitalized project development costs are reclassified to property, plant and equipment and depreciated on a straight-line basis over the estimated useful life of the project's related assets. Capitalized costs are charged to expense if a project is abandoned or management otherwise determines the costs to be unrecoverable.
Interest incurred on funds borrowed to finance capital projects is capitalized until the project under construction is ready for its intended use. The amount of interest capitalized for the years ended December 31, 2021, 2020 and 2019, was $2 million, $2 million and $3 million, respectively.
Debt Issuance Costs
Debt issuance costs are capitalized and amortized as interest expense on a basis which approximates the effective interest method over the term of the related debt. Debt issuance costs are presented as a direct deduction from the carrying amount of the related debt, or as an asset if the issuance costs relate to revolving debt agreements or certain other financing arrangements.
Intangible Assets
Intangible assets represent contractual rights held by the Company. The Company recognizes specifically identifiable intangible assets including emission allowances, customer and supply contracts, customer relationships, marketing partnerships, trade names and fuel contracts when specific rights and contracts are acquired. These intangible assets are amortized based on expected volumes, expected delivery, expected discounted future net cash flows, straight line or units of production basis. As of December 31, 2021 and 2020, the Company had accumulated amortization related to its intangible assets of $1.6 billion and $1.4 billion, respectively.
Emission allowances held-for-sale, which are included in other non-current assets on the Company's consolidated balance sheet, are not amortized; they are carried at the lower of cost or fair value and reviewed for impairment in accordance with ASC 360.
Goodwill
In accordance with ASC 350, Intangibles-Goodwill and Other, or ASC 350, the Company recognizes goodwill for the excess cost of an acquired entity over the net value assigned to assets acquired and liabilities assumed. NRG performs goodwill impairment tests annually, during the fourth quarter, and when events or changes in circumstances indicate that the carrying value may not be recoverable.
The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The more-likely-than-not threshold is defined as having a likelihood of more than 50 percent. If it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, there is no goodwill impairment.
In the absence of sufficient qualitative factors indicating that it is more-likely-than-not that no impairment occurred, the Company performs a quantitative assessment by determining the fair value of the reporting unit and comparing the fair value to its book value. If the fair value of the reporting unit exceeds its book value, goodwill of the reporting unit is not considered impaired. If the book value exceeds fair value, the Company recognizes an impairment loss equal to the difference between book value and fair value.
For further discussion of goodwill and goodwill impairment losses recognized refer to Note 12, Goodwill and Other Intangibles.
Income Taxes
The Company accounts for income taxes using the liability method in accordance with ASC 740, Income Taxes, or ASC 740, which requires that the Company use the asset and liability method of accounting for deferred income taxes and provide deferred income taxes for all significant temporary differences.
The Company has two categories of income tax expense or benefit — current and deferred, as follows:
Current income tax expense or benefit consists solely of current taxes payable less applicable tax credits, and
Deferred income tax expense or benefit is the change in the net deferred income tax asset or liability, excluding amounts charged or credited to accumulated other comprehensive income
95


The Company reports some of its revenues and expenses differently for financial statement purposes than for income tax return purposes, resulting in temporary and permanent differences between the Company's financial statements and income tax returns. The tax effects of such temporary differences are recorded as either deferred income tax assets or deferred income tax liabilities in the Company's consolidated balance sheets. The Company measures its deferred income tax assets and deferred income tax liabilities using income tax rates that are expected to be in effect when the deferred tax is realized.
The Company accounts for uncertain tax positions in accordance with ASC 740, which applies to all tax positions related to income taxes. Under ASC 740, tax benefits are recognized when it is more-likely-than-not that a tax position will be sustained upon examination by the authorities. The benefit recognized from a position is the amount of benefit that has surpassed the more-likely-than-not threshold, as it is more than 50% likely to be realized upon settlement. The Company recognizes interest and penalties accrued related to uncertain tax benefits as a component of income tax expense.
In accordance with ASC 740 and as discussed further in Note 20, Income Taxes, changes to existing net deferred tax assets or valuation allowances or changes to uncertain tax benefits, are recorded to income tax (benefit)/expense.
Contract and Emission Credit Amortization
Assets and liabilities recognized through acquisitions related to the purchase and sale of energy and energy-related products in future periods for which the fair value has been determined to be significantly less or more than market are amortized to operating revenues or cost of operations over the term of each underlying contract based on actual generation and/or contracted volumes.
Emission credits represent the right to generate a specified amount of emissions, including sulfur dioxide, nitrogen oxides and carbon dioxide, over a compliance period. Emission credits held for use are amortized to cost of operations based on the weighted average cost of the allowances held.
Lease Revenue
Certain of the Company’s revenues are obtained through leases of rooftop residential solar systems, which are accounted for as operating leases in accordance with ASC 842, Leases. Pursuant to the lease agreements, the customers’ monthly payments are pre-determined fixed monthly amounts and may include an annual fixed percentage escalation to reflect the impact of utility rate increases over the lease term, which is 20 years. The Company records operating lease revenue on a straight-line basis over the life of the lease term. Certain customers made initial down payments that are being amortized over the life of the lease. The difference between the payments received and the revenue recognized is recorded as deferred revenue.
Lessor Accounting
Certain of the Company's revenues are obtained through PPAs or other contractual agreements. Many of these agreements are accounted for as operating leases under ASC 842.
Gross Receipts and Sales Taxes
In connection with its retail sales, the Company records gross receipts taxes on a gross basis in revenues and cost of operations in its consolidated statements of operations. During the years ended December 31, 2021, 2020 and 2019, the Company's revenues and cost of operations included gross receipts taxes of $184 million, $107 million and $109 million, respectively. Additionally, the Company records sales taxes collected from its taxable retail customers underand remitted to the names "NRG" and "Reliant"various governmental entities on a net basis; thus, there is no impact on the Company's consolidated statement of operations.
Cost of Operations
Cost of operations includes cost of fuel, purchased energy and other brand names owned by NRG supported by approximately 23,000(a) MWcosts of sales, mark-to-market for economic hedging activities, contract and emission credit amortization, operations and maintenance, and other cost of operations.
Cost of Fuel, Purchased Energy and Other Cost of Sales
Cost of fuel is primarily the costs associated with procurement, transportation and storage of natural gas, oil and coal to operate the generation portfolio, which is expensed as the fuel is consumed. Purchased energy primarily relates to purchases to supply the Company's customer base, which includes spot market purchases, as well as contracts of various quantities and durations, including renewable purchased power agreements under PPAs with third-party developers, which are accounted for as NPNS (see further discussion in Derivative Financial Instruments below). Other cost of sales primarily consists of TDSP expenses.
The cost of fuel is based on actual and estimated fuel usage for the applicable reporting period. The cost to deliver energy and related services to customers is based on actual and estimated supply volumes for the applicable reporting period. A portion of the cost of energy, $189 million, $98 million and $103 million as of December 31, 2018.2021, 2020 and 2019, respectively, was accrued and consisted of estimated transmission and distribution charges not yet billed by the transmission and distribution utilities.
Retail is a consumer facing business that includes residential
96


In estimating supply volumes, the Company considers the effects of historical customer volumes, weather factors and small commercial (Mass Market) consumersusage by customer class. Transmission and distribution delivery fees are estimated using the same method used for electricity sales and services to retail customers. In addition, ISO fees are estimated based on historical trends, estimated supply volumes and initial ERCOT ISO settlements. Volume estimates are then multiplied by the supply rate and recorded as cost of operations in the applicable reporting period.
Derivative Instruments
The Company accounts for derivative instruments under ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value and changes in fair value in earnings, unless they qualify for the NPNS exception. The Company's primary derivative instruments are power and natural gas purchase or sales contracts, fuels purchase contracts and other energy related commodities used to mitigate variability in earnings due to fluctuation in market prices. In addition, in order to mitigate foreign exchange risk associated with the purchase of USD denominated natural gas for the Company's Business Solutions group,Canadian business, NRG enters into foreign exchange contract agreements.
As of December 31, 2021 and 2020 the Company did not have derivative instruments that were designated as cash flow or fair value or hedge.
Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.
NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy. These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative instruments are recognized in earnings.
Mark-to-Market for Economic Hedging Activities
NRG enters into derivative instruments to manage price and delivery risk, optimize physical and contractual assets in the portfolio and manage working capital requirements. The mark-to-market for economic hedging activities are recognized to cost of operations during the reporting period.
Operations and Maintenance and Other Cost of Operations
Operations and maintenance costs include major and other routine preventative (planned outage) and corrective (forced outage) maintenance activities to ensure the safe and reliable operation of the Company's generation portfolio in compliance with all local, state and federal requirements. Operations and maintenance costs are also costs associated with retaining and maintaining the Company's customer base, such as call center support, portfolio maintenance and data analytics. Other cost of operations primarily includes gross receipts taxes, insurance, property taxes and asset retirement obligation expense.
Foreign Currency Translation and Transaction Gains and Losses
The local currencies are generally the functional currency of NRG's foreign operations. Foreign currency denominated assets and liabilities are translated at end-of-period rates of exchange. Revenues, expenses, and cash flows are translated at the weighted-average rates of exchange for the period. The resulting currency translation adjustments are not included in the Company's consolidated statements of operations for the period, but are accumulated and reported as a separate component of stockholders' equity until sale or complete or substantially complete liquidation of the net investment in the foreign entity takes place. Foreign currency transaction gains or losses are reported within other income/(expense) in the Company's consolidated statements of operations. For the years ended December 31, 2021, 2020 and 2019, amounts recognized as foreign currency transaction gains/(losses) were immaterial. The Company's cumulative translation adjustment balances as of December 31, 2021, 2020 and 2019 were $(8) million, $(2) million and $(13) million, respectively.
Concentrations of Credit Risk
Financial instruments which includes demand response, commodity sales,potentially subject the Company to concentrations of credit risk consist primarily of trust funds, accounts receivable, notes receivable, derivatives, and investments in debt securities. Trust funds are held in accounts managed by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated within entities engaged in the energy efficiencyindustry. These industry concentrations may impact the Company's overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. Receivables and energy management solutions. Productsother contractual arrangements are subject to collateral requirements under the terms of enabling agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification and services range from retail energy, portable solarcreditworthiness of its customer base. See Note 5, Fair Value of Financial Instruments, for a further discussion of derivative concentrations.
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Fair Value of Financial Instruments
The carrying amount of cash and battery products home services,cash equivalents, funds deposited by counterparties, receivables, accounts payable, and accrued liabilities approximate fair value because of the short-term maturity of these instruments. See Note 5, Fair Value of Financial Instruments, for a further discussion of fair value of financial instruments.
Asset Retirement Obligations
The Company accounts for AROs in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a varietyreasonable estimate of bundled products, which combine energyfair value can be made.
Upon initial recognition of a liability for an ARO, the Company capitalizes the asset retirement cost by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. See Note 14, Asset Retirement Obligations, for a further discussion of AROs.
Pensions and Other Postretirement Benefits
The Company offers pension benefits through a defined benefit pension plan. In addition, the Company provides postretirement health and welfare benefits for certain groups of employees. The Company accounts for pension and other postretirement benefits in accordance with protection products, energy efficiencyASC 715, Compensation — Retirement Benefits, or ASC 715. The Company recognizes the funded status of the Company's defined benefit plans in the statement of financial position and renewable energy solutions,records an offset for gains and losses as well as all prior service costs that have not been included as part of the Company's net periodic benefit cost to other distributedcomprehensive income. The determination of the Company's obligation and reliability products.expenses for pension benefits is dependent on the selection of certain assumptions. These assumptions determined by management include the discount rate, the expected rate of return on plan assets and the rate of future compensation increases. The Company's actuarial consultants assist in determining assumptions for such items as retirement age. The assumptions used may differ materially from actual results, which may result in a significant impact to the amount of pension obligation or expense recorded by the Company.
The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820.
Stock-Based Compensation
The Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's performance stock units is estimated on the date of grant using a Monte Carlo valuation model. NRG uses the Company's common stock price on the date of grant as the fair value of the Company's deferred stock units. The fair value of the Company's restricted stock units is derived from the closing price of NRG's common stock at the grant date. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award.
Investments Accounted for by the Equity Method
The Company has investments in various domestic energy projects, as well as one Australian project. The equity method of accounting is applied to such investments in affiliates, which include joint ventures and partnerships, because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of domestic partnerships and, generally, in the net income or losses of its Australian project, are reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.
Tax Equity Arrangements
The Company’s redeemable noncontrolling interest in subsidiaries represented third-party interests in the net assets under certain tax equity arrangements, which were consolidated by the Company, that had been entered into to finance the cost of solar energy systems under operating leases. The Company determined that the provisions in the contractual agreements of these structures represented substantive profit sharing arrangements. Further, the Company had determined that the appropriate methodology for calculating the redeemable noncontrolling interest that reflected the substantive profit sharing arrangements was a balance sheet approach that utilized the HLBV method. Under the HLBV method, the amounts reported as redeemable
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noncontrolling interests represented the amounts the investors that were party to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts. The investors’ interests in the results of operations of the funding structures were determined as redeemable noncontrolling interests at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds’ investors. The calculations utilized to apply the HLBV method included estimated calculations of taxable income or losses for each reporting period. During the first quarter of 2020, the Company repurchased its partners' equity interest, which was the Company's last remaining tax equity arrangement.
Redeemable Noncontrolling Interest
The following table reflects the changes in the Company's redeemable noncontrolling interest balance for the years ended December 31, 2020 and 2019.
(In millions)
Balance as of December 31, 2018$19 
Distributions to redeemable noncontrolling interest(2)
Net income attributable to redeemable noncontrolling interest - continuing operations
Balance as of December 31, 201920 
Repurchase of redeemable noncontrolling interest(20)
Balance as of December 31, 2020$
Sale-Leaseback Arrangements
NRG is party to sale-leaseback arrangements that provide for the sale of certain assets to a third party and simultaneously leases back the same asset to the Company. If the seller-lessee transfers control of the underlying assets to the buyer-lessor, the arrangement is accounted for under ASC 842-40, Sale-Leaseback Transactions. These arrangements are classified as operating leases on the Company's consolidated balance sheets. See Note 10, Leases, for further discussion.
Marketing and Advertising Costs
The Company expenses its marketing and advertising costs as incurred and includes them within selling, general and administrative expenses. The costs of tangible assets used in advertising campaigns are recorded as fixed assets or deferred advertising costs and amortized as advertising costs over the shorter of the useful life of the asset or the advertising campaign. The Company has several long-term sponsorship arrangements. Payments related to these arrangements are deferred and expensed over the term of the arrangement. Advertising expenses for the years ended December 31, 2021, 2020 and 2019 were $109 million, $74 million and $66 million, respectively.
Business Combinations
The Company accounts for its business combinations in accordance with ASC 805, Business Combinations, or ASC 805, which requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed, and any noncontrolling interest in the acquiree at fair value at the acquisition date. The Company also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination. In addition, transaction costs are expensed as incurred.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others. In addition, estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.
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Reclassifications
Certain prior period amounts have been reclassified for comparative purposes. The reclassifications did not affect results from operations, net assets or cash flows.
Recent Accounting Developments - Guidance Adopted in 2021
ASU 2019-12 — In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, or ASU 2019-12, to simplify various aspects related to accounting for income taxes. The guidance in ASU 2019-12 amends the general principles in Topic 740 to eliminate certain exceptions for recognizing deferred taxes for investment, performing intraperiod allocation and calculating income taxes in interim periods. This ASU also includes guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company adopted the amendments effective January 1, 2021 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, statements of cash flows, or statement of financial position.
ASU 2021-10 — In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 832):Disclosures by Business Entities about Government Assistance, which requires additional disclosures for transactions with a government accounted for by applying a grant or contribution model by analogy, including: (i) the nature of the transactions and the related accounting policy used to account for the transactions; (ii) the line items on the balance sheet and income statement that are affected by the transactions, and the amounts applicable to each financial statement line item; and (iii) significant terms and conditions of the transactions, including commitments and contingencies. The amendments were applied prospectively to all transactions within the scope of the amendments. Early application of the new standard is permitted and the effect of the new standard only impacted the Company’s financial statement disclosures.
Recent Accounting Developments - Guidance Not Yet Adopted
ASU 2020-06 — In August 2020, the FASB issued ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40), or ASU 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 using the modified retrospective approach. As a result of the provisions of the amended guidance, the Company estimates a $100 million decrease to additional paid-in capital, a $57 million decrease to debt discount, a $57 million increase to retained earnings, and a $14 million decrease to long-term deferred tax liabilities. The Company does not expect the adoptions of ASU 2020-06 to have a material impact on its statement of operations, statements of cash flows or earnings per share amounts.
ASU 2021-08 — In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, or ASU 2021-08. Under current GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers and other similar contracts that are accounted for in accordance with ASC 606, Revenue from Contracts with Customers, or ASC 606, at fair value on the acquisition date. ASU 2021-08 requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606. At the acquisition date, an acquirer should account for the related revenue contracts in accordance with ASC 606 as if it had originated the contracts, which should generally result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements. This update also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years and should be applied prospectively to business combinations occurring on or after the effective date of the amendments. Early adoption is permitted, including adoption in an interim period. Adoption during an interim period requires retrospective application to all business combinations for which the acquisition date occurs on or after the beginning of the fiscal year that includes the interim period of early application and prospectively to all business combinations that occur on or after the date of initial application. The Company does not expect the adoption of ASU 2021-08 to have a material impact on the consolidated financial statements and disclosures.



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Note 3Revenue Recognition
The Company's Generation business includes plant operations, commercial operations, EPC, asset management,policies with respect to its various revenue streams are detailed below. The Company generally applies the invoicing practical expedient to recognize revenue for the revenue streams detailed below, except in circumstances where the invoiced amount does not represent the value transferred to the customer.
Retail Revenue
Gross revenues for energy sales and services to retail customers are recognized as the Company transfers the promised goods and services to the customer. For the majority of its electricity and natural gas contracts, the Company’s performance obligation with the customer is satisfied over time and performance obligations for its electricity and natural gas products are recognized as the customer takes possession of the product. The Company also allocates the contract consideration to distinct performance obligations in a contract for which the timing of the revenue recognized is different. Additionally, customer discounts and incentives reduce the contract consideration and are recognized over the term of the contract.
Energy sales and services that have been delivered but not billed by period end are estimated. Accrued unbilled revenues are based on estimates of customer usage since the date of the last meter reading provided by the independent system operators, utilities, or electric distribution companies. Volume estimates are based on daily forecasted volumes and estimated customer usage by class. Unbilled revenues are calculated by multiplying these volume estimates by the applicable rate by customer class. Estimated amounts are adjusted when actual usage is known and billed.
As contracts for retail electricity and natural gas can be for multi-year periods, the Company has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other criticalcontract-specific factors. For the fixed price contracts, the amount of any unsatisfied performance obligations will vary based on customer usage, which will depend on factors such as weather and customer activity and therefore it is not practicable to estimate such amounts.
Energy Revenue
Both physical and financial transactions consist of revenues billed to a third party at either market or negotiated contract terms to optimize the financial performance of the Company's generating facilities. Electric energy revenue is recognized upon transmission to the customer over time, using the output method for measuring progress of satisfaction of performance obligations. Physical transactions, or the sale of generated electricity to meet supply and demand, are recorded on a gross basis in the Company's consolidated statements of operations. The Company applies the invoicing practical expedient in recognizing energy revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date. Financial transactions used to hedge the sale of electricity are recorded net within operating revenues in the consolidated statements of operations in accordance with ASC 815.
Ancillary revenues, included in Other revenue, are recognized over time as the obligation is fulfilled, using the output method for measuring progress of satisfaction of performance obligations.
CapacityRevenue
The Company's largest sources of capacity revenues are capacity auctions in PJM, ISO-NE and NYISO. Capacity revenues also include revenues billed to a third party at either market or negotiated contract terms for making installed generation and demand response capacity available in order to satisfy system integrity and reliability requirements. Capacity revenues are recognized over time, using the output method for measuring progress of satisfaction of performance obligations. The Company applies the invoicing practical expedient in recognizing capacity revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date.
Performance Obligations
As of December 31, 2021, estimated future fixed fee performance obligations are $258 million, $48 million and $1 million for fiscal years 2022, 2023 and 2024, respectively. These performance obligations are for cleared auction MWs in the PJM, ISO-NE, NYISO and MISO capacity auctions and are subject to penalties for non-performance.
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Disaggregated Revenue
The following tables represent the Company’s disaggregation of revenue from contracts with customers for the years ended December 31, 2021, 2020 and 2019:
For the Year Ended December 31, 2021
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,665 $1,959 $2,053 $(1)$9,676 
Business2,745 9,903 1,237 — 13,885 
Total retail revenue8,410 11,862 3,290 (1)23,561 
Energy revenue(c)
329 508 371 1,215 
Capacity revenue(c)
— 718 57 — 775 
Mark-to-market for economic hedging activities(d)
(3)(88)(86)13 (164)
Contract amortization— (26)(4)— (30)
Other revenue(b)(c)
1,557 59 25 (9)1,632 
Total operating revenue10,293 13,033 3,653 10 26,989 
Less: Lease revenue— — 
Less: Realized and unrealized ASC 815 revenue130 184 (96)16 234 
Less: Contract amortization— (26)(4)— (30)
Total revenue from contracts with customers$10,163 $12,874 $3,746 $(6)$26,777 
(a) Home includes Services
(b) Other Revenue in Texas includes ancillary revenues of $1.3 billion driven by high pricing during Winter Storm Uri
(c) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $131 $$$136 
Capacity revenue— 149 — — 149 
Other revenue133 (8)(12)— 113 
(d) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
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For the Year Ended December 31, 2020
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,210 $96 $(2)$6,331 
Business1,034 95 — — 1,129 
Total retail revenue6,061 1,305 96 (2)7,460 
Energy revenue(b)
24 183 333 (1)539 
Capacity revenue(b)
— 620 61 (1)680 
Mark-to-market for economic hedging activities(c)
88 (3)95 
Other revenue(b)
222 62 43 (8)319 
Total operating revenue6,309 2,258 530 (4)9,093 
Less: Lease revenue— 17 — 18 
Less: Realized and unrealized ASC 815 revenue30 314 38 385 
Total revenue from contracts with customers$6,279 $1,943 $475 $(7)$8,690 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $67 $43 $(5)$105 
Capacity revenue— 156 — — 156 
Other revenue28 (2)— 29 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
For the Year Ended December 31, 2019
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,173 $57 $(3)$6,254 
Business1,205 74 — — 1,279 
Total retail revenue6,232 1,247 57 (3)7,533 
Energy revenue(b)
529 322 318 — 1,169 
Capacity revenue(b)
— 664 36 — 700 
Mark-to-market for economic hedging activities(c)
47 (29)16 (1)33 
Other revenue(b)
261 58 70 (3)386 
Total operating revenue7,069 2,262 497 (7)9,821 
Less: Lease revenue— 19 — 20 
Less: Realized and unrealized ASC 815 revenue1,562 183 67 (2)1,810 
Total revenue from contracts with customers$5,507 $2,078 $411 $(5)$7,991 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$1,459 $98 $39 $(1)$1,595 
Capacity revenue— 109 — — 109 
Other revenue56 12 — 73 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

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ContractBalances
The following table reflects the contract assets and liabilities included in the Company's balance sheet as of December 31, 2021 and 2020:
(In millions)December 31, 2021December 31, 2020
Deferred customer acquisition costs$133 $113 
Accounts receivable, net - Contracts with customers3,057 866 
Accounts receivable, net - Derivative instruments182 33 
Accounts receivable, net - Affiliate
Total accounts receivable, net$3,245 $904 
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)$1,574 $393 
Deferred revenues (a)
$227 $60 
(a) Deferred revenues from contracts with customers for the years ended December 31, 2021 and 2020 were approximately $224 million and $31 million, respectively
The revenue recognized from contracts with customers during the years ended December 31, 2021 and 2020 relating to the deferred revenue balance at the beginning of each period was $23 million and $13 million, respectively. The change in deferred revenue balances during the years ended December 31, 2021 and 2020 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.
The Company's customer acquisition costs consist of broker fees, commission payments and other costs that represent incremental costs of obtaining the contract with customers for which the Company expects to recover. The Company amortizes these amounts over the estimated life of the customer contract. As a practical expedient, the Company expenses the incremental costs of obtaining a contract if the amortization period of the asset would have been one year or less.
When the Company receives consideration from the customer that is in excess of the amount due, such consideration is reclassified to deferred revenue, which represents a contract liability. Generally, the Company will recognize revenue from contract liabilities in the next period as the Company satisfies its performance obligations.

Note 4 —Acquisitions, Discontinued Operations and Dispositions
Acquisitions
Direct Energy Acquisition
On January 5, 2021 (the "Acquisition Closing Date"), the Company acquired all of the issued and outstanding common shares of Direct Energy, which had been a North American subsidiary of Centrica plc. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related functions.products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increased NRG's retail portfolio by over 3 million customers and strengthens its integrated model. It also broadens the Company's presence in the Northeast and into states and locales where it did not previously operate, supporting NRG's objective to diversify its business.
The Company paid an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment of $77 million. The Company funded the purchase price using a combination of $715 million of cash on hand, $166 million from a draw on its Revolving Credit Facility (of which $107 million was used to fund acquisition costs and financing fees that are not included in the aggregate purchase price above) as well as approximately $2.9 billion in secured and unsecured corporate debt issued in December 2020. The final purchase price adjustment resulted in additional payment of $22 million, which was paid in December 2021.
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The Company also increased its collective collateral facilities by $3.4 billion as of the Acquisition Closing Date to meet the additional liquidity requirements related to the acquisition, as detailed in the following table:
(In millions)
Available on Acquisition Closing Date
Revolving Credit Facility commitment increase$802 
Revolving Credit Facility new tranche273
Facility agreement in connection with the sale of pre-capitalized trust securities874
Available as of December 31, 2020
Credit default swap facility150
Revolving accounts receivable financing facility750
Repurchase facility75
Bilateral letter of credit facilities475
Total Increases to Liquidity and Collateral Facilities$3,399 
For further discussion see Note 13, Long-term Debt and Finance Leases.
Acquisition costs of $25 million and $17 million for the years ended December 31, 2021 and 2020, respectively, are included in acquisition-related transaction and integration costs in the Company's consolidated statement of operations.
The acquisition has been recorded as a business combination under ASC 805 with identifiable assets acquired and liabilities assumed recorded at their estimated fair values on the acquisition date. The purchase price is allocated as follows:
(In millions)
Current Assets
Cash and cash equivalents$152 
Funds deposited by counterparties21 
Restricted cash
Accounts receivable, net1,802 
Inventory106 
Derivative instruments1,014 
Cash collateral paid in support of energy risk management activities233 
Prepayments and other current assets173 
Total current assets3,510 
Property, plant and equipment, net151 
Other Assets
Goodwill(a)
1,250 
Intangible assets, net:
    Customer relationships(b)
1,277 
    Customer and supply contracts(b)
610 
    Trade names(b)
310 
    Renewable energy credits124 
Total intangible assets, net2,321 
Derivative instruments531 
Other non-current assets31 
Total other assets4,133 
Total Assets$7,794 
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(In millions)
Current Liabilities
Accounts payable$1,116 
Derivative instruments1,266 
Cash collateral received in support of energy risk management activities21 
Accrued expenses and other current liabilities670 
Total current liabilities3,073 
Other Liabilities
Derivative instruments562 
Deferred income taxes320 
Other non-current liabilities115 
Total other liabilities997 
Total Liabilities$4,070 
Direct Energy Purchase Price$3,724 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Direct Energy with NRG's existing businesses. Goodwill was allocated to the Texas, East, and West/Services/Other segments of $427 million, $648 million , and $175 million, respectively. Goodwill expected to be deductible for tax purposes is $322 million
(b)The weighted average amortization period for total amortizable intangible assets is 12 years

Measurement Period Adjustments
The following measurement period adjustments were recognized during the quarter ended December 31, 2021:
(In millions)
Assets
Prepayments and other current assets$(10)
Goodwill(7)
    Total decrease in assets$(17)
Liabilities
Accounts payable$(4)
Accrued expenses and other current liabilities(20)
Deferred income taxes(18)
   Total decrease in liabilities$(42)
Net measurement period adjustments$25 
The measurement period adjustments are attributable primarily to refinement of the underlying assumptions used to estimate the fair value of assets acquired and liabilities assumed as more information was obtained about facts and circumstances that existed as of the Acquisition Closing Date.
Fair Value Measurement of Intangible Assets
The fair values of intangible assets as of the Acquisition Closing Date were measured primarily based on significant inputs that are observable and unobservable in the market and thus represent Level 2 and Level 3 measurements, respectively. Significant inputs were as follows:
Customer relationships Customer relationships, reflective of Direct Energy’s customer base, were valued using an excess earning method of the income approach. Under this approach, the Company estimated the present value of expected future cash flows resulting from existing customer relationships, considering attrition and charges for contributory assets (such as net working capital, fixed assets, workforce and trade names) utilized in the business, discounted at an independent power producer peer group’s weighted average cost of capital. The customer relationships are amortized to depreciation and amortization, ratably based on discounted future cash flows. The weighted average amortization period is 12 years.
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Customer and supply contracts The fair value of in-market and out-of-market customer and supply contracts were estimated based on contractual terms compared to market prices as of the Acquisition Closing Date. The majority of the contracts were valued using prices provided by external sources, primarily price quotations available through broker or over-the-counter and online exchanges. For contracts for which external sources or observable market quotes were not available, these values were based on valuation techniques including, but not limited to, internal models based on fundamental analysis of the market and extrapolation of the observable market data with similar characteristics. In addition, the Company applied a credit reserve to reflect credit risk, which is calculated based on published default probabilities. The customer and supply contracts are amortized to revenue and cost of operations, respectively, based upon the fair market value, as of the acquisition date, for each delivery month. The weighted average amortization period is 14 years.
Trade names Trade names were valued using a "relief from royalty" method of the income approach. Under this approach, the fair value is estimated to be the present value of royalties saved because NRG owns the intangible asset and therefore does not have to pay a royalty for its use. The trade names are amortized to depreciation and amortization, on a straight line basis, over a weighted average amortization period of 15 years.
Renewable energy credits Renewable energy credits were valued based on the market prices as of the Acquisition Closing Date. Renewable energy credits are retired, as required, for the applicable compliance period. They are expensed to cost of operations based on customer usage.
Fair Value Measurement of Derivative Assets and Liabilities
The fair values of derivatives assets and liabilities as of the Acquisition Closing Date were as follows:
Fair Value
(In millions)TotalLevel 1Level 2Level 3
Derivatives assets$1,545 $155 $1,272 $118 
Derivatives liabilities1,828 207 1,489 132 
Refer to Note 5, Fair Value of Financial Instruments for discussion on derivative fair value measurements.
Supplemental Information
For the Year Ended December 31, 2021 Direct Energy contributed revenue and income before income taxes of $15.6 billion and $2.4 billion, respectively.
Supplemental Unaudited Pro Forma Financial Information
The following table provides unaudited pro forma combined financial information of NRG and Direct Energy, after giving effect to the traditional functionsDirect Energy acquisition and related financing transactions as if they had occurred on January 1, 2019. The pro forma financial information has been prepared for illustrative and informational purposes only, and is not intended to project future operating results or indicative of what our financial performance would have been had the transactions occurred on the date assumed. No effect has been given to operating synergies.
For the Year Ended December 31,
(In millions)202120202019
Total operating revenues$26,987 $21,326 $23,673 
Income from continuing operations2,225 471 3,623 

Amounts above reflect certain pro forma adjustments that were directly attributable to the Direct Energy acquisition. These adjustments include the following:
(i) Income statement effects of fair value adjustments based on the purchase price allocation including amortization of intangible assets, depreciation of property, plant and equipment and lease expense.
(ii) Interest expense assumes the financing transactions directly attributable to the Direct Energy acquisition occurred on January 1, 2019.
(iii) Removal of Direct Energy historical interest expense associated with related party notes receivable/payable between Direct Energy and Centrica and its subsidiaries, as those notes are assumed to be repaid as of January 1, 2019.
(iv) Elimination of transactions between NRG and Direct Energy.
(v) Adjustments to reflect all acquisition costs occurring during the year ended December 31, 2019.
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(vi) Tax effects of pro forma adjustments on all periods presented and shifting the recognition of one time tax benefits resulting from the acquisition from the year ended December 31, 2021 to the year ended December 31, 2019.
Midwest Generation Lease PurchaseOn September 29, 2020, Midwest Generation acquired all of the ownership interests in the Powerton facility and Units 7 and 8 of the Joliet facility, which were being leased through 2034 and 2030, respectively, for approximately $260 million. The purchase was funded with cash-on-hand. Upon closing, lease expense related to these facilities, which totaled approximately $14 million in 2019, and the operating lease liability of $148 million were eliminated.
Stream Energy Acquisition — On August 1, 2019, the Company completed the acquisition of Stream Energy's retail electricity and natural gas business operating in 9 states and Washington, D.C. for $329 million, including working capital and other adjustments of approximately $29 million. The acquisition increased NRG's wholesale power generationretail portfolio by approximately 600,000 RCEs or 450,000 customers.
The purchase price was allocated as follows:
(In millions)
Account receivable$98 
Accounts payable(73)
Other net current and non-current working capital
Marketing partnership154 
Customer relationships85 
Trade name28 
Other intangible assets26 
Goodwill (a)
 Stream Purchase Price$329 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Stream Energy with NRG's existing businesses. Goodwill of $5 million and $1 million was assigned to the Texas and East segments, respectively, and is not deductible for tax purposes
Dispositions
Sale of 4,850 MW of Fossil generating assets
On December 1, 2021, the Company closed the previously announced sale of approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. Proceeds of $760 million were reduced by working capital and other adjustments of $137 million, resulting in net proceeds of $623 million. The Company recorded a gain of $210 million from the sale, which includes the $39 million indemnification liability recorded as discussed below. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
As part of the agreement to sell the fossil generating assets, NRG has agreed to indemnify Generation Bridge for certain future environmental compliance costs up to $39 million. The indemnity term will expire on December 1, 2028. The Company has recorded the liability within accrued expenses and other current liabilities and other non-current liabilities.
Sale of Agua Caliente
On February 3, 2021, the Company closed on the sale of its 35% ownership in the Agua Caliente solar project to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including cash disposed of $7 million.
Sale of Home Solar
In the third quarter of 2020, the Company concluded its Home Solar business Generation also includes NRG's retained renewable generation business.was held for sale and recorded an impairment loss of $29 million, as further discussed in Note 11, Asset Impairments. On November 13, 2020, the Company completed the sale of the Home Solar business for cash proceeds of $66 million, resulting in a $2 million loss on the sale. In connection with the sale, the Company extinguished debt of $27 million and recognized a $5 million loss on the extinguishment.
Company completed other asset sales for cash proceeds of $12 million and $15 million during the years ended December 31, 2021 and 2020, respectively.
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Discontinued OperationsAsset Impairments
On December 31, 2018, as described in Note 3, Acquisitions, Discontinued Operations and Dispositions, the Company concluded that the sale of its South Central Portfolio to Cleco, excluding the Cottonwood facility, met held-for-sale criteria and should be presented as a discontinued operation, as the sale represented a strategic shift in the business in which NRG operates. The financial information for all historical periods has been recast to reflect the presentation of these entities as discontinued operations.
On August 31, 2018, as described in Note 3, Acquisitions, Discontinued Operations and Dispositions, NRG deconsolidated NRG Yield, Inc. and its Renewables Platform for financial reporting purposes. The financial information for all historical periods has been recast to reflect the presentation of these entities, as well as the Carlsbad project, as discontinued operations. As a result of the sale of NRG Yield, the Company no longer controls the Agua Caliente project. Due to this change in control, the Company has deconsolidated the Agua Caliente project from its financial results and has accounted for the project as an equity method investment.
GenOn Chapter 11 Cases
On June 14, 2017, or the Petition Date, GenOn, along with GenOn Americas Generation and certain of their directly and indirectly-owned subsidiaries, or collectively the GenOn Entities, filed voluntary petitions for relief under Chapter 11, or the Chapter 11 Cases, of the U.S. Bankruptcy Code, or the Bankruptcy Code, in the U.S. Bankruptcy Court for the Southern District of Texas, Houston Division, or the Bankruptcy Court. GenOn Mid-Atlantic, as well as its consolidated subsidiaries, REMA and certain other subsidiaries, did not file for relief under Chapter 11. As a result of the bankruptcy filings and beginning on June 14, 2017, GenOn and its subsidiaries were deconsolidated from NRG's consolidated financial statements. NRG determined that this disposal of GenOn and its subsidiaries is a discontinued operation and, accordingly, the financial information for all historical periods has been recast to reflect GenOn as a discontinued operation. GenOn's plan of reorganization was confirmed on December 14, 2018.



(a)excluding discontinued operations and held for sale


Note 2 — Summary of Significant Accounting Policies
Basis of Presentation and Principles of Consolidation
The Company's consolidated financial statements have been prepared in accordance with GAAP. The ASC, established by the FASB, is the source of authoritative GAAP to be applied by nongovernmental entities. In addition, the rules and interpretative releases of the SEC under authority of federal securities laws are also sources of authoritative U.S. GAAP for SEC registrants.
The consolidated financial statements include NRG's accounts and operations and those of its subsidiaries in which the Company has a controlling interest. All significant intercompany transactions and balances have been eliminated in consolidation. The usual condition for a controlling financial interest is ownership of a majority of the voting interests of an entity. However, a controlling financial interest may also exist through arrangements that do not involve controlling voting interests. As such, NRG applies the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or not controlled through its voting interests, referred to as a VIE, should be consolidated.
Net Income/(Loss) attributable to NRG Energy, Inc.
The following table reflects the net income/(loss) attributable to NRG Energy, Inc. after removing the net loss attributable to the noncontrolling interest and redeemable noncontrolling interest:
 Year Ended December 31,
 2018 2017 2016
 (In millions)
Income/(loss) from continuing operations, net of income tax$465
 $(977) $(733)
Loss from discontinued operations, net of income tax(197) (1,176) (41)
Net income/(loss) attributable to NRG Energy, Inc. stockholders$268
 $(2,153) (774)
Segment Reporting
The Company's businesses are segregated into the Generation, Retail and corporate segments. Generation includes all power plant activities, domestic and international, as well as renewables. Retail includes Mass customers and Business Solutions, which includes C&I customers and other distributed and reliability products.
As described in Note 3, Acquisitions, Discontinued Operations and Dispositions, the Company has determined that the South Central Portfolio, NRG Yield Inc. and its Renewables Platform, Carlsbad, and GenOn all qualified for treatment as a discontinued operation. The financial information for all historical periods has been recast to reflect the presentation of discontinued operations within the corporate segment.
Cash and Cash Equivalents
Cash and cash equivalents include highly liquid investments with an original maturity of three months or less at the time of purchase.
Funds Deposited by Counterparties
Funds deposited by counterparties consist of cash held by the Company as a result of collateral posting obligations from its counterparties. Some amounts are segregated into separate accountsLong-lived assets that are not contractually restricted but, based on the Company's intention,held and used are not availablereviewed for the payment of general corporate obligations. Depending on market fluctuations and the settlement of the underlying contracts, the Company will refund this collateral to the hedge counterparties pursuant to the terms and conditions of the underlying trades. Since collateral requirements fluctuate daily and the Company cannot predict if any collateral will be held for more than twelve months, the funds deposited by counterparties are classified as a current asset on the Company's balance sheet, with an offsetting liability for this cash collateral received within current liabilities. As of December 31, 2016, $79 million of the cash collateral received was from GenOn, previously a consolidated subsidiary, and is included in cash collateral received in current liabilities as a result of deconsolidating GenOn, with the offset included in cash and cash equivalents.


Restricted Cash
The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of cash flows.
 Year Ended December 31,
 2018 2017 2016
 (In millions)
Cash and cash equivalents$563
 $770
 $591
Funds deposited by counterparties33
 37
 2
Restricted cash17
 279
 267
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statements of cash flows$613
 $1,086
 $860
Restricted cash consists primarily of funds held to satisfy the requirements of certain debt agreements and funds held within the Company's projects that are restricted in their use.
Trade Receivables and Allowance for Doubtful Accounts
Trade receivables are reported in the balance sheet at outstanding principal adjusted for any write-offs and the allowance for doubtful accounts. For its retail business, the Company accrues an allowance for doubtful accounts based on estimates of uncollectible revenues by analyzing counterparty credit ratings (for commercial and industrial customers), historical collections, accounts receivable aging and other factors. The retail business writes-off accounts receivable balances against the allowance for doubtful accounts when it determines a receivable is uncollectible. In addition, the Company considers a reserve for doubtful accounts based on the credit worthiness of the customers and continually reviews and adjusts for current economic trends that might impact the level of future credit losses. The reserve represents management's best estimate of uncollectible amounts. As of December 31, 2018 and 2017, the allowance for doubtful accounts was $32 million and $28 million, respectively.
Inventory
Inventory is valued at the lower of weighted average cost or market, and consists principally of fuel oil, coal and raw materials used to generate electricity or steam. The Company removes these inventories as they are used in the production of electricity or steam. Spare parts inventory is valued at weighted average cost. The Company removes these inventories when they are used for repairs, maintenance or capital projects. The Company expects to recover the fuel oil, coal, raw materials, and spare parts costs in the ordinary course of business. Finished goods inventory is valued at the lower of cost or net realizable value with cost being determined on a first-in first-out basis. The Company removes these inventories as they are sold to customers. Sales of inventory are classified as an operating activity in the consolidated statements of cash flows.
Property, Plant and Equipment
Property, plant and equipment are stated at cost or, in the case of business acquisitions, fair value; however, impairment adjustments are recorded whenever events or changes in circumstances indicate that their carrying values may not be recoverable. Such reviews are performed in accordance with ASC 360. An impairment loss is indicated if the total future estimated undiscounted cash flows expected from an asset are less than its carrying value. An impairment charge is measured by the difference between an asset's carrying amount and fair value with the difference recorded in operating costs and expenses in the consolidated statements of operations. Fair values are determined by a variety of valuation methods, including third-party appraisals, sales prices of similar assets, and present value techniques.
Investments accounted for by the equity method are reviewed for impairment in accordance with ASC 323, Investments-Equity Method and Joint Ventures, or ASC 323, which requires that a loss in value of an investment that is an other-than-temporary decline should be recognized. The Company identifies and measures losses in the value of equity method investments based upon a comparison of fair value to carrying value. For further discussion of these matters, refer to Note 11, Asset Impairments.
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Development Costs and Capitalized Interest
Development costs include project development costs, which are expensed in the preliminary stages of a project and capitalized when the project is deemed to be commercially viable. Commercial viability is determined by one or a series of actions including, among others, Board of Director approval pursuant to a formal project plan that subjects the Company to significant future obligations that can only be discharged by the use of a Company asset. When a project is available for operations, capitalized interest and capitalized project development costs are reclassified to property, plant and equipment and depreciated on a straight-line basis over the estimated useful life of the project's related assets. Capitalized costs are charged to expense if a project is abandoned or management otherwise determines the costs to be unrecoverable.
Interest incurred on funds borrowed to finance capital projects is capitalized until the project under construction is ready for its intended use. The amount of interest capitalized for the years ended December 31, 2021, 2020 and 2019, was $2 million, $2 million and $3 million, respectively.
Debt Issuance Costs
Debt issuance costs are capitalized and amortized as interest expense on a basis which approximates the effective interest method over the term of the related debt. Debt issuance costs are presented as a direct deduction from the carrying amount of the related debt, or as an asset if the issuance costs relate to revolving debt agreements or certain other financing arrangements.
Intangible Assets
Intangible assets represent contractual rights held by the Company. The Company recognizes specifically identifiable intangible assets including emission allowances, customer and supply contracts, customer relationships, marketing partnerships, trade names and fuel contracts when specific rights and contracts are acquired. These intangible assets are amortized based on expected volumes, expected delivery, expected discounted future net cash flows, straight line or units of production basis. As of December 31, 2021 and 2020, the Company had accumulated amortization related to its intangible assets of $1.6 billion and $1.4 billion, respectively.
Emission allowances held-for-sale, which are included in other non-current assets on the Company's consolidated balance sheet, are not amortized; they are carried at the lower of cost or fair value and reviewed for impairment in accordance with ASC 360.
Goodwill
In accordance with ASC 350, Intangibles-Goodwill and Other, or ASC 350, the Company recognizes goodwill for the excess cost of an acquired entity over the net value assigned to assets acquired and liabilities assumed. NRG also classifies nuclear fuelperforms goodwill impairment tests annually, during the fourth quarter, and when events or changes in circumstances indicate that the carrying value may not be recoverable.
The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The more-likely-than-not threshold is defined as having a likelihood of more than 50 percent. If it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, there is no goodwill impairment.
In the absence of sufficient qualitative factors indicating that it is more-likely-than-not that no impairment occurred, the Company performs a quantitative assessment by determining the fair value of the reporting unit and comparing the fair value to its book value. If the fair value of the reporting unit exceeds its book value, goodwill of the reporting unit is not considered impaired. If the book value exceeds fair value, the Company recognizes an impairment loss equal to the difference between book value and fair value.
For further discussion of goodwill and goodwill impairment losses recognized refer to Note 12, Goodwill and Other Intangibles.
Income Taxes
The Company accounts for income taxes using the liability method in accordance with ASC 740, Income Taxes, or ASC 740, which requires that the Company use the asset and liability method of accounting for deferred income taxes and provide deferred income taxes for all significant temporary differences.
The Company has two categories of income tax expense or benefit — current and deferred, as follows:
Current income tax expense or benefit consists solely of current taxes payable less applicable tax credits, and
Deferred income tax expense or benefit is the change in the net deferred income tax asset or liability, excluding amounts charged or credited to accumulated other comprehensive income
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The Company reports some of its revenues and expenses differently for financial statement purposes than for income tax return purposes, resulting in temporary and permanent differences between the Company's financial statements and income tax returns. The tax effects of such temporary differences are recorded as either deferred income tax assets or deferred income tax liabilities in the Company's consolidated balance sheets. The Company measures its deferred income tax assets and deferred income tax liabilities using income tax rates that are expected to be in effect when the deferred tax is realized.
The Company accounts for uncertain tax positions in accordance with ASC 740, which applies to all tax positions related to income taxes. Under ASC 740, tax benefits are recognized when it is more-likely-than-not that a tax position will be sustained upon examination by the authorities. The benefit recognized from a position is the amount of benefit that has surpassed the more-likely-than-not threshold, as it is more than 50% likely to be realized upon settlement. The Company recognizes interest and penalties accrued related to uncertain tax benefits as a component of income tax expense.
In accordance with ASC 740 and as discussed further in Note 20, Income Taxes, changes to existing net deferred tax assets or valuation allowances or changes to uncertain tax benefits, are recorded to income tax (benefit)/expense.
Contract and Emission Credit Amortization
Assets and liabilities recognized through acquisitions related to the purchase and sale of energy and energy-related products in future periods for which the fair value has been determined to be significantly less or more than market are amortized to operating revenues or cost of operations over the term of each underlying contract based on actual generation and/or contracted volumes.
Emission credits represent the right to generate a specified amount of emissions, including sulfur dioxide, nitrogen oxides and carbon dioxide, over a compliance period. Emission credits held for use are amortized to cost of operations based on the weighted average cost of the allowances held.
Lease Revenue
Certain of the Company’s revenues are obtained through leases of rooftop residential solar systems, which are accounted for as operating leases in accordance with ASC 842, Leases. Pursuant to the lease agreements, the customers’ monthly payments are pre-determined fixed monthly amounts and may include an annual fixed percentage escalation to reflect the impact of utility rate increases over the lease term, which is 20 years. The Company records operating lease revenue on a straight-line basis over the life of the lease term. Certain customers made initial down payments that are being amortized over the life of the lease. The difference between the payments received and the revenue recognized is recorded as deferred revenue.
Lessor Accounting
Certain of the Company's 44% ownership interestrevenues are obtained through PPAs or other contractual agreements. Many of these agreements are accounted for as operating leases under ASC 842.
Gross Receipts and Sales Taxes
In connection with its retail sales, the Company records gross receipts taxes on a gross basis in STPrevenues and cost of operations in its consolidated statements of operations. During the years ended December 31, 2021, 2020 and 2019, the Company's revenues and cost of operations included gross receipts taxes of $184 million, $107 million and $109 million, respectively. Additionally, the Company records sales taxes collected from its taxable retail customers and remitted to the various governmental entities on a net basis; thus, there is no impact on the Company's consolidated statement of operations.
Cost of Operations
Cost of operations includes cost of fuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization, operations and maintenance, and other cost of operations.
Cost of Fuel, Purchased Energy and Other Cost of Sales
Cost of fuel is primarily the costs associated with procurement, transportation and storage of natural gas, oil and coal to operate the generation portfolio, which is expensed as the fuel is consumed. Purchased energy primarily relates to purchases to supply the Company's customer base, which includes spot market purchases, as well as contracts of various quantities and durations, including renewable purchased power agreements under PPAs with third-party developers, which are accounted for as NPNS (see further discussion in Derivative Financial Instruments below). Other cost of sales primarily consists of TDSP expenses.
The cost of fuel is based on actual and estimated fuel usage for the applicable reporting period. The cost to deliver energy and related services to customers is based on actual and estimated supply volumes for the applicable reporting period. A portion of the cost of energy, $189 million, $98 million and $103 million as of December 31, 2021, 2020 and 2019, respectively, was accrued and consisted of estimated transmission and distribution charges not yet billed by the transmission and distribution utilities.
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In estimating supply volumes, the Company considers the effects of historical customer volumes, weather factors and usage by customer class. Transmission and distribution delivery fees are estimated using the same method used for electricity sales and services to retail customers. In addition, ISO fees are estimated based on historical trends, estimated supply volumes and initial ERCOT ISO settlements. Volume estimates are then multiplied by the supply rate and recorded as cost of operations in the applicable reporting period.
Derivative Instruments
The Company accounts for derivative instruments under ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value and changes in fair value in earnings, unless they qualify for the NPNS exception. The Company's primary derivative instruments are power and natural gas purchase or sales contracts, fuels purchase contracts and other energy related commodities used to mitigate variability in earnings due to fluctuation in market prices. In addition, in order to mitigate foreign exchange risk associated with the purchase of USD denominated natural gas for the Company's Canadian business, NRG enters into foreign exchange contract agreements.
As of December 31, 2021 and 2020 the Company did not have derivative instruments that were designated as cash flow or fair value or hedge.
Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.
NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy. These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative instruments are recognized in earnings.
Mark-to-Market for Economic Hedging Activities
NRG enters into derivative instruments to manage price and delivery risk, optimize physical and contractual assets in the portfolio and manage working capital requirements. The mark-to-market for economic hedging activities are recognized to cost of operations during the reporting period.
Operations and Maintenance and Other Cost of Operations
Operations and maintenance costs include major and other routine preventative (planned outage) and corrective (forced outage) maintenance activities to ensure the safe and reliable operation of the Company's generation portfolio in compliance with all local, state and federal requirements. Operations and maintenance costs are also costs associated with retaining and maintaining the Company's customer base, such as call center support, portfolio maintenance and data analytics. Other cost of operations primarily includes gross receipts taxes, insurance, property taxes and asset retirement obligation expense.
Foreign Currency Translation and Transaction Gains and Losses
The local currencies are generally the functional currency of NRG's foreign operations. Foreign currency denominated assets and liabilities are translated at end-of-period rates of exchange. Revenues, expenses, and cash flows are translated at the weighted-average rates of exchange for the period. The resulting currency translation adjustments are not included in the Company's consolidated statements of operations for the period, but are accumulated and reported as a separate component of stockholders' equity until sale or complete or substantially complete liquidation of the net investment in the foreign entity takes place. Foreign currency transaction gains or losses are reported within other income/(expense) in the Company's consolidated statements of operations. For the years ended December 31, 2021, 2020 and 2019, amounts recognized as foreign currency transaction gains/(losses) were immaterial. The Company's cumulative translation adjustment balances as of December 31, 2021, 2020 and 2019 were $(8) million, $(2) million and $(13) million, respectively.
Concentrations of Credit Risk
Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of trust funds, accounts receivable, notes receivable, derivatives, and investments in debt securities. Trust funds are held in accounts managed by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated within entities engaged in the energy industry. These industry concentrations may impact the Company's overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. Receivables and other contractual arrangements are subject to collateral requirements under the terms of enabling agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification and creditworthiness of its customer base. See Note 5, Fair Value of Financial Instruments, for a further discussion of derivative concentrations.
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Fair Value of Financial Instruments
The carrying amount of cash and cash equivalents, funds deposited by counterparties, receivables, accounts payable, and accrued liabilities approximate fair value because of the short-term maturity of these instruments. See Note 5, Fair Value of Financial Instruments, for a further discussion of fair value of financial instruments.
Asset Retirement Obligations
The Company accounts for AROs in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can be made.
Upon initial recognition of a liability for an ARO, the Company capitalizes the asset retirement cost by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. See Note 14, Asset Retirement Obligations, for a further discussion of AROs.
Pensions and Other Postretirement Benefits
The Company offers pension benefits through a defined benefit pension plan. In addition, the Company provides postretirement health and welfare benefits for certain groups of employees. The Company accounts for pension and other postretirement benefits in accordance with ASC 715, Compensation — Retirement Benefits, or ASC 715. The Company recognizes the funded status of the Company's defined benefit plans in the statement of financial position and records an offset for gains and losses as well as all prior service costs that have not been included as part of the Company's property, plant,net periodic benefit cost to other comprehensive income. The determination of the Company's obligation and equipment. Significant additionsexpenses for pension benefits is dependent on the selection of certain assumptions. These assumptions determined by management include the discount rate, the expected rate of return on plan assets and the rate of future compensation increases. The Company's actuarial consultants assist in determining assumptions for such items as retirement age. The assumptions used may differ materially from actual results, which may result in a significant impact to the amount of pension obligation or improvements extendingexpense recorded by the Company.
The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820.
Stock-Based Compensation
The Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's performance stock units is estimated on the date of grant using a Monte Carlo valuation model. NRG uses the Company's common stock price on the date of grant as the fair value of the Company's deferred stock units. The fair value of the Company's restricted stock units is derived from the closing price of NRG's common stock at the grant date. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award.
Investments Accounted for by the Equity Method
The Company has investments in various domestic energy projects, as well as one Australian project. The equity method of accounting is applied to such investments in affiliates, which include joint ventures and partnerships, because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of domestic partnerships and, generally, in the net income or losses of its Australian project, are reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.
Tax Equity Arrangements
The Company’s redeemable noncontrolling interest in subsidiaries represented third-party interests in the net assets under certain tax equity arrangements, which were consolidated by the Company, that had been entered into to finance the cost of solar energy systems under operating leases. The Company determined that the provisions in the contractual agreements of these structures represented substantive profit sharing arrangements. Further, the Company had determined that the appropriate methodology for calculating the redeemable noncontrolling interest that reflected the substantive profit sharing arrangements was a balance sheet approach that utilized the HLBV method. Under the HLBV method, the amounts reported as redeemable
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noncontrolling interests represented the amounts the investors that were party to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts. The investors’ interests in the results of operations of the funding structures were determined as redeemable noncontrolling interests at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds’ investors. The calculations utilized to apply the HLBV method included estimated calculations of taxable income or losses for each reporting period. During the first quarter of 2020, the Company repurchased its partners' equity interest, which was the Company's last remaining tax equity arrangement.
Redeemable Noncontrolling Interest
The following table reflects the changes in the Company's redeemable noncontrolling interest balance for the years ended December 31, 2020 and 2019.
(In millions)
Balance as of December 31, 2018$19 
Distributions to redeemable noncontrolling interest(2)
Net income attributable to redeemable noncontrolling interest - continuing operations
Balance as of December 31, 201920 
Repurchase of redeemable noncontrolling interest(20)
Balance as of December 31, 2020$
Sale-Leaseback Arrangements
NRG is party to sale-leaseback arrangements that provide for the sale of certain assets to a third party and simultaneously leases back the same asset livesto the Company. If the seller-lessee transfers control of the underlying assets to the buyer-lessor, the arrangement is accounted for under ASC 842-40, Sale-Leaseback Transactions. These arrangements are capitalizedclassified as operating leases on the Company's consolidated balance sheets. See Note 10, Leases, for further discussion.
Marketing and Advertising Costs
The Company expenses its marketing and advertising costs as incurred while repairs and maintenance that do not improveincludes them within selling, general and administrative expenses. The costs of tangible assets used in advertising campaigns are recorded as fixed assets or extenddeferred advertising costs and amortized as advertising costs over the shorter of the useful life of the respective asset or the advertising campaign. The Company has several long-term sponsorship arrangements. Payments related to these arrangements are chargeddeferred and expensed over the term of the arrangement. Advertising expenses for the years ended December 31, 2021, 2020 and 2019 were $109 million, $74 million and $66 million, respectively.
Business Combinations
The Company accounts for its business combinations in accordance with ASC 805, Business Combinations, or ASC 805, which requires an acquirer to expenserecognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed, and any noncontrolling interest in the acquiree at fair value at the acquisition date. The Company also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination. In addition, transaction costs are expensed as incurred. Depreciation, other than nuclear fuel,
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others. In addition, estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.
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Reclassifications
Certain prior period amounts have been reclassified for comparative purposes. The reclassifications did not affect results from operations, net assets or cash flows.
Recent Accounting Developments - Guidance Adopted in 2021
ASU 2019-12 — In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, or ASU 2019-12, to simplify various aspects related to accounting for income taxes. The guidance in ASU 2019-12 amends the general principles in Topic 740 to eliminate certain exceptions for recognizing deferred taxes for investment, performing intraperiod allocation and calculating income taxes in interim periods. This ASU also includes guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. ASU 2019-12 is computedeffective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company adopted the amendments effective January 1, 2021 using the straight-line method, while nuclear fuelprospective approach. The adoption did not have a material impact on the Company's results of operations, statements of cash flows, or statement of financial position.
ASU 2021-10 — In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 832):Disclosures by Business Entities about Government Assistance, which requires additional disclosures for transactions with a government accounted for by applying a grant or contribution model by analogy, including: (i) the nature of the transactions and the related accounting policy used to account for the transactions; (ii) the line items on the balance sheet and income statement that are affected by the transactions, and the amounts applicable to each financial statement line item; and (iii) significant terms and conditions of the transactions, including commitments and contingencies. The amendments were applied prospectively to all transactions within the scope of the amendments. Early application of the new standard is amortizedpermitted and the effect of the new standard only impacted the Company’s financial statement disclosures.
Recent Accounting Developments - Guidance Not Yet Adopted
ASU 2020-06 — In August 2020, the FASB issued ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40), or ASU 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 using the modified retrospective approach. As a result of the provisions of the amended guidance, the Company estimates a $100 million decrease to additional paid-in capital, a $57 million decrease to debt discount, a $57 million increase to retained earnings, and a $14 million decrease to long-term deferred tax liabilities. The Company does not expect the adoptions of ASU 2020-06 to have a material impact on its statement of operations, statements of cash flows or earnings per share amounts.
ASU 2021-08 — In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, or ASU 2021-08. Under current GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers and other similar contracts that are accounted for in accordance with ASC 606, Revenue from Contracts with Customers, or ASC 606, at fair value on the acquisition date. ASU 2021-08 requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606. At the acquisition date, an acquirer should account for the related revenue contracts in accordance with ASC 606 as if it had originated the contracts, which should generally result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements. This update also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years and should be applied prospectively to business combinations occurring on or after the effective date of the amendments. Early adoption is permitted, including adoption in an interim period. Adoption during an interim period requires retrospective application to all business combinations for which the acquisition date occurs on or after the beginning of the fiscal year that includes the interim period of early application and prospectively to all business combinations that occur on or after the date of initial application. The Company does not expect the adoption of ASU 2021-08 to have a material impact on the consolidated financial statements and disclosures.



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Note 3Revenue Recognition
The Company's policies with respect to its various revenue streams are detailed below. The Company generally applies the invoicing practical expedient to recognize revenue for the revenue streams detailed below, except in circumstances where the invoiced amount does not represent the value transferred to the customer.
Retail Revenue
Gross revenues for energy sales and services to retail customers are recognized as the Company transfers the promised goods and services to the customer. For the majority of its electricity and natural gas contracts, the Company’s performance obligation with the customer is satisfied over time and performance obligations for its electricity and natural gas products are recognized as the customer takes possession of the product. The Company also allocates the contract consideration to distinct performance obligations in a contract for which the timing of the revenue recognized is different. Additionally, customer discounts and incentives reduce the contract consideration and are recognized over the term of the contract.
Energy sales and services that have been delivered but not billed by period end are estimated. Accrued unbilled revenues are based on unitsestimates of production overcustomer usage since the date of the last meter reading provided by the independent system operators, utilities, or electric distribution companies. Volume estimates are based on daily forecasted volumes and estimated useful lives. Certain assets and their related accumulated depreciationcustomer usage by class. Unbilled revenues are calculated by multiplying these volume estimates by the applicable rate by customer class. Estimated amounts are adjusted when actual usage is known and billed.
As contracts for asset retirementsretail electricity and disposals withnatural gas can be for multi-year periods, the resulting gainCompany has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other contract-specific factors. For the fixed price contracts, the amount of any unsatisfied performance obligations will vary based on customer usage, which will depend on factors such as weather and customer activity and therefore it is not practicable to estimate such amounts.
Energy Revenue
Both physical and financial transactions consist of revenues billed to a third party at either market or loss includednegotiated contract terms to optimize the financial performance of the Company's generating facilities. Electric energy revenue is recognized upon transmission to the customer over time, using the output method for measuring progress of satisfaction of performance obligations. Physical transactions, or the sale of generated electricity to meet supply and demand, are recorded on a gross basis in costthe Company's consolidated statements of operationsoperations. The Company applies the invoicing practical expedient in recognizing energy revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date. Financial transactions used to hedge the sale of electricity are recorded net within operating revenues in the consolidated statements of operations in accordance with ASC 815.
Ancillary revenues, included in Other revenue, are recognized over time as the obligation is fulfilled, using the output method for measuring progress of satisfaction of performance obligations.
CapacityRevenue
The Company's largest sources of capacity revenues are capacity auctions in PJM, ISO-NE and NYISO. Capacity revenues also include revenues billed to a third party at either market or negotiated contract terms for making installed generation and demand response capacity available in order to satisfy system integrity and reliability requirements. Capacity revenues are recognized over time, using the output method for measuring progress of satisfaction of performance obligations. The Company applies the invoicing practical expedient in recognizing capacity revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date.
Performance Obligations
As of December 31, 2021, estimated future fixed fee performance obligations are $258 million, $48 million and $1 million for fiscal years 2022, 2023 and 2024, respectively. These performance obligations are for cleared auction MWs in the PJM, ISO-NE, NYISO and MISO capacity auctions and are subject to penalties for non-performance.
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Disaggregated Revenue
The following tables represent the Company’s disaggregation of revenue from contracts with customers for the years ended December 31, 2021, 2020 and 2019:
For the Year Ended December 31, 2021
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,665 $1,959 $2,053 $(1)$9,676 
Business2,745 9,903 1,237 — 13,885 
Total retail revenue8,410 11,862 3,290 (1)23,561 
Energy revenue(c)
329 508 371 1,215 
Capacity revenue(c)
— 718 57 — 775 
Mark-to-market for economic hedging activities(d)
(3)(88)(86)13 (164)
Contract amortization— (26)(4)— (30)
Other revenue(b)(c)
1,557 59 25 (9)1,632 
Total operating revenue10,293 13,033 3,653 10 26,989 
Less: Lease revenue— — 
Less: Realized and unrealized ASC 815 revenue130 184 (96)16 234 
Less: Contract amortization— (26)(4)— (30)
Total revenue from contracts with customers$10,163 $12,874 $3,746 $(6)$26,777 
(a) Home includes Services
(b) Other Revenue in Texas includes ancillary revenues of $1.3 billion driven by high pricing during Winter Storm Uri
(c) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $131 $$$136 
Capacity revenue— 149 — — 149 
Other revenue133 (8)(12)— 113 
(d) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
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For the Year Ended December 31, 2020
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,210 $96 $(2)$6,331 
Business1,034 95 — — 1,129 
Total retail revenue6,061 1,305 96 (2)7,460 
Energy revenue(b)
24 183 333 (1)539 
Capacity revenue(b)
— 620 61 (1)680 
Mark-to-market for economic hedging activities(c)
88 (3)95 
Other revenue(b)
222 62 43 (8)319 
Total operating revenue6,309 2,258 530 (4)9,093 
Less: Lease revenue— 17 — 18 
Less: Realized and unrealized ASC 815 revenue30 314 38 385 
Total revenue from contracts with customers$6,279 $1,943 $475 $(7)$8,690 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $67 $43 $(5)$105 
Capacity revenue— 156 — — 156 
Other revenue28 (2)— 29 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
For the Year Ended December 31, 2019
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,173 $57 $(3)$6,254 
Business1,205 74 — — 1,279 
Total retail revenue6,232 1,247 57 (3)7,533 
Energy revenue(b)
529 322 318 — 1,169 
Capacity revenue(b)
— 664 36 — 700 
Mark-to-market for economic hedging activities(c)
47 (29)16 (1)33 
Other revenue(b)
261 58 70 (3)386 
Total operating revenue7,069 2,262 497 (7)9,821 
Less: Lease revenue— 19 — 20 
Less: Realized and unrealized ASC 815 revenue1,562 183 67 (2)1,810 
Total revenue from contracts with customers$5,507 $2,078 $411 $(5)$7,991 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$1,459 $98 $39 $(1)$1,595 
Capacity revenue— 109 — — 109 
Other revenue56 12 — 73 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

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ContractBalances
The following table reflects the contract assets and liabilities included in the Company's balance sheet as of December 31, 2021 and 2020:
(In millions)December 31, 2021December 31, 2020
Deferred customer acquisition costs$133 $113 
Accounts receivable, net - Contracts with customers3,057 866 
Accounts receivable, net - Derivative instruments182 33 
Accounts receivable, net - Affiliate
Total accounts receivable, net$3,245 $904 
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)$1,574 $393 
Deferred revenues (a)
$227 $60 
(a) Deferred revenues from contracts with customers for the years ended December 31, 2021 and 2020 were approximately $224 million and $31 million, respectively
The revenue recognized from contracts with customers during the years ended December 31, 2021 and 2020 relating to the deferred revenue balance at the beginning of each period was $23 million and $13 million, respectively. The change in deferred revenue balances during the years ended December 31, 2021 and 2020 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.
The Company's customer acquisition costs consist of broker fees, commission payments and other costs that represent incremental costs of obtaining the contract with customers for which the Company expects to recover. The Company amortizes these amounts over the estimated life of the customer contract. As a practical expedient, the Company expenses the incremental costs of obtaining a contract if the amortization period of the asset would have been one year or less.
When the Company receives consideration from the customer that is in excess of the amount due, such consideration is reclassified to deferred revenue, which represents a contract liability. Generally, the Company will recognize revenue from contract liabilities in the next period as the Company satisfies its performance obligations.

Note 4 —Acquisitions, Discontinued Operations and Dispositions
Acquisitions
Direct Energy Acquisition
On January 5, 2021 (the "Acquisition Closing Date"), the Company acquired all of the issued and outstanding common shares of Direct Energy, which had been a North American subsidiary of Centrica plc. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increased NRG's retail portfolio by over 3 million customers and strengthens its integrated model. It also broadens the Company's presence in the Northeast and into states and locales where it did not previously operate, supporting NRG's objective to diversify its business.
The Company paid an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment of $77 million. The Company funded the purchase price using a combination of $715 million of cash on hand, $166 million from a draw on its Revolving Credit Facility (of which $107 million was used to fund acquisition costs and financing fees that are not included in the aggregate purchase price above) as well as approximately $2.9 billion in secured and unsecured corporate debt issued in December 2020. The final purchase price adjustment resulted in additional payment of $22 million, which was paid in December 2021.
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The Company also increased its collective collateral facilities by $3.4 billion as of the Acquisition Closing Date to meet the additional liquidity requirements related to the acquisition, as detailed in the following table:
(In millions)
Available on Acquisition Closing Date
Revolving Credit Facility commitment increase$802 
Revolving Credit Facility new tranche273
Facility agreement in connection with the sale of pre-capitalized trust securities874
Available as of December 31, 2020
Credit default swap facility150
Revolving accounts receivable financing facility750
Repurchase facility75
Bilateral letter of credit facilities475
Total Increases to Liquidity and Collateral Facilities$3,399 
For further discussion see Note 13, Long-term Debt and Finance Leases.
Acquisition costs of $25 million and $17 million for the years ended December 31, 2021 and 2020, respectively, are included in acquisition-related transaction and integration costs in the Company's consolidated statement of operations.
The acquisition has been recorded as a business combination under ASC 805 with identifiable assets acquired and liabilities assumed recorded at their estimated fair values on the acquisition date. The purchase price is allocated as follows:
(In millions)
Current Assets
Cash and cash equivalents$152 
Funds deposited by counterparties21 
Restricted cash
Accounts receivable, net1,802 
Inventory106 
Derivative instruments1,014 
Cash collateral paid in support of energy risk management activities233 
Prepayments and other current assets173 
Total current assets3,510 
Property, plant and equipment, net151 
Other Assets
Goodwill(a)
1,250 
Intangible assets, net:
    Customer relationships(b)
1,277 
    Customer and supply contracts(b)
610 
    Trade names(b)
310 
    Renewable energy credits124 
Total intangible assets, net2,321 
Derivative instruments531 
Other non-current assets31 
Total other assets4,133 
Total Assets$7,794 
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(In millions)
Current Liabilities
Accounts payable$1,116 
Derivative instruments1,266 
Cash collateral received in support of energy risk management activities21 
Accrued expenses and other current liabilities670 
Total current liabilities3,073 
Other Liabilities
Derivative instruments562 
Deferred income taxes320 
Other non-current liabilities115 
Total other liabilities997 
Total Liabilities$4,070 
Direct Energy Purchase Price$3,724 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Direct Energy with NRG's existing businesses. Goodwill was allocated to the Texas, East, and West/Services/Other segments of $427 million, $648 million , and $175 million, respectively. Goodwill expected to be deductible for tax purposes is $322 million
(b)The weighted average amortization period for total amortizable intangible assets is 12 years

Measurement Period Adjustments
The following measurement period adjustments were recognized during the quarter ended December 31, 2021:
(In millions)
Assets
Prepayments and other current assets$(10)
Goodwill(7)
    Total decrease in assets$(17)
Liabilities
Accounts payable$(4)
Accrued expenses and other current liabilities(20)
Deferred income taxes(18)
   Total decrease in liabilities$(42)
Net measurement period adjustments$25 
The measurement period adjustments are attributable primarily to refinement of the underlying assumptions used to estimate the fair value of assets acquired and liabilities assumed as more information was obtained about facts and circumstances that existed as of the Acquisition Closing Date.
Fair Value Measurement of Intangible Assets
The fair values of intangible assets as of the Acquisition Closing Date were measured primarily based on significant inputs that are observable and unobservable in the market and thus represent Level 2 and Level 3 measurements, respectively. Significant inputs were as follows:
Customer relationships Customer relationships, reflective of Direct Energy’s customer base, were valued using an excess earning method of the income approach. Under this approach, the Company estimated the present value of expected future cash flows resulting from existing customer relationships, considering attrition and charges for contributory assets (such as net working capital, fixed assets, workforce and trade names) utilized in the business, discounted at an independent power producer peer group’s weighted average cost of capital. The customer relationships are amortized to depreciation and amortization, ratably based on discounted future cash flows. The weighted average amortization period is 12 years.
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Customer and supply contracts The fair value of in-market and out-of-market customer and supply contracts were estimated based on contractual terms compared to market prices as of the Acquisition Closing Date. The majority of the contracts were valued using prices provided by external sources, primarily price quotations available through broker or over-the-counter and online exchanges. For contracts for which external sources or observable market quotes were not available, these values were based on valuation techniques including, but not limited to, internal models based on fundamental analysis of the market and extrapolation of the observable market data with similar characteristics. In addition, the Company applied a credit reserve to reflect credit risk, which is calculated based on published default probabilities. The customer and supply contracts are amortized to revenue and cost of operations, respectively, based upon the fair market value, as of the acquisition date, for each delivery month. The weighted average amortization period is 14 years.
Trade names Trade names were valued using a "relief from royalty" method of the income approach. Under this approach, the fair value is estimated to be the present value of royalties saved because NRG owns the intangible asset and therefore does not have to pay a royalty for its use. The trade names are amortized to depreciation and amortization, on a straight line basis, over a weighted average amortization period of 15 years.
Renewable energy credits Renewable energy credits were valued based on the market prices as of the Acquisition Closing Date. Renewable energy credits are retired, as required, for the applicable compliance period. They are expensed to cost of operations based on customer usage.
Fair Value Measurement of Derivative Assets and Liabilities
The fair values of derivatives assets and liabilities as of the Acquisition Closing Date were as follows:
Fair Value
(In millions)TotalLevel 1Level 2Level 3
Derivatives assets$1,545 $155 $1,272 $118 
Derivatives liabilities1,828 207 1,489 132 
Refer to Note 5, Fair Value of Financial Instruments for discussion on derivative fair value measurements.
Supplemental Information
For the Year Ended December 31, 2021 Direct Energy contributed revenue and income before income taxes of $15.6 billion and $2.4 billion, respectively.
Supplemental Unaudited Pro Forma Financial Information
The following table provides unaudited pro forma combined financial information of NRG and Direct Energy, after giving effect to the Direct Energy acquisition and related financing transactions as if they had occurred on January 1, 2019. The pro forma financial information has been prepared for illustrative and informational purposes only, and is not intended to project future operating results or indicative of what our financial performance would have been had the transactions occurred on the date assumed. No effect has been given to operating synergies.
For the Year Ended December 31,
(In millions)202120202019
Total operating revenues$26,987 $21,326 $23,673 
Income from continuing operations2,225 471 3,623 

Amounts above reflect certain pro forma adjustments that were directly attributable to the Direct Energy acquisition. These adjustments include the following:
(i) Income statement effects of fair value adjustments based on the purchase price allocation including amortization of intangible assets, depreciation of property, plant and equipment and lease expense.
(ii) Interest expense assumes the financing transactions directly attributable to the Direct Energy acquisition occurred on January 1, 2019.
(iii) Removal of Direct Energy historical interest expense associated with related party notes receivable/payable between Direct Energy and Centrica and its subsidiaries, as those notes are assumed to be repaid as of January 1, 2019.
(iv) Elimination of transactions between NRG and Direct Energy.
(v) Adjustments to reflect all acquisition costs occurring during the year ended December 31, 2019.
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(vi) Tax effects of pro forma adjustments on all periods presented and shifting the recognition of one time tax benefits resulting from the acquisition from the year ended December 31, 2021 to the year ended December 31, 2019.
Midwest Generation Lease PurchaseOn September 29, 2020, Midwest Generation acquired all of the ownership interests in the Powerton facility and Units 7 and 8 of the Joliet facility, which were being leased through 2034 and 2030, respectively, for approximately $260 million. The purchase was funded with cash-on-hand. Upon closing, lease expense related to these facilities, which totaled approximately $14 million in 2019, and the operating lease liability of $148 million were eliminated.
Stream Energy Acquisition — On August 1, 2019, the Company completed the acquisition of Stream Energy's retail electricity and natural gas business operating in 9 states and Washington, D.C. for $329 million, including working capital and other adjustments of approximately $29 million. The acquisition increased NRG's retail portfolio by approximately 600,000 RCEs or 450,000 customers.
The purchase price was allocated as follows:
(In millions)
Account receivable$98 
Accounts payable(73)
Other net current and non-current working capital
Marketing partnership154 
Customer relationships85 
Trade name28 
Other intangible assets26 
Goodwill (a)
 Stream Purchase Price$329 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Stream Energy with NRG's existing businesses. Goodwill of $5 million and $1 million was assigned to the Texas and East segments, respectively, and is not deductible for tax purposes
Dispositions
Sale of 4,850 MW of Fossil generating assets
On December 1, 2021, the Company closed the previously announced sale of approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. Proceeds of $760 million were reduced by working capital and other adjustments of $137 million, resulting in net proceeds of $623 million. The Company recorded a gain of $210 million from the sale, which includes the $39 million indemnification liability recorded as discussed below. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
As part of the agreement to sell the fossil generating assets, NRG has agreed to indemnify Generation Bridge for certain future environmental compliance costs up to $39 million. The indemnity term will expire on December 1, 2028. The Company has recorded the liability within accrued expenses and other current liabilities and other non-current liabilities.
Sale of Agua Caliente
On February 3, 2021, the Company closed on the sale of its 35% ownership in the Agua Caliente solar project to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including cash disposed of $7 million.
Sale of Home Solar
In the third quarter of 2020, the Company concluded its Home Solar business was held for sale and recorded an impairment loss of $29 million, as further discussed in Note 11, Asset Impairments. On November 13, 2020, the Company completed the sale of the Home Solar business for cash proceeds of $66 million, resulting in a $2 million loss on the sale. In connection with the sale, the Company extinguished debt of $27 million and recognized a $5 million loss on the extinguishment.
Company completed other asset sales for cash proceeds of $12 million and $15 million during the years ended December 31, 2021 and 2020, respectively.
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Asset Impairments
Long-lived assets that are held and used are reviewed for impairment whenever events or changes in circumstances indicate carrying values may not be recoverable. Such reviews are performed in accordance with ASC 360. An impairment loss is indicated if the total future estimated undiscounted cash flows expected from an asset are less than its carrying value. An impairment charge is measured by the difference between an asset's carrying amount and fair value with the difference recorded in operating costs and expenses in the consolidated statements of operations. Fair values are determined by a variety of valuation methods, including third-party appraisals, sales prices of similar assets, and present value techniques.

Investments accounted for by the equity method are reviewed for impairment in accordance with ASC 323, Investments-Equity Method and Joint Ventures, or ASC 323, which requires that a loss in value of an investment that is an other-than-temporary decline should be recognized. The Company identifies and measures losses in the value of equity method investments based upon a comparison of fair value to carrying value. For further discussion of these matters, refer to Note 9, 11, Asset Impairments.
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Development Costs and Capitalized Interest
Development costs include project development costs, which are expensed in the preliminary stages of a project and capitalized when the project is deemed to be commercially viable. Commercial viability is determined by one or a series of actions including, among others, Board of Director approval pursuant to a formal project plan that subjects the Company to significant future obligations that can only be discharged by the use of a Company asset. When a project is available for operations, capitalized interest and capitalized project development costs are reclassified to property, plant and equipment and depreciated on a straight-line basis over the estimated useful life of the project's related assets. Capitalized costs are charged to expense if a project is abandoned or management otherwise determines the costs to be unrecoverable.
Interest incurred on funds borrowed to finance capital projects is capitalized until the project under construction is ready for its intended use. The amount of interest capitalized for the years ended December 31, 2018, 2017,2021, 2020 and 2016,2019, was $7$2 million,, $20 $2 million and $29$3 million,, respectively.
Debt Issuance Costs
Debt issuance costs are capitalized and amortized as interest expense on a basis which approximates the effective interest method over the term of the related debt. Debt issuance costs are presented as a direct deduction from the carrying amount of the related debt.debt, or as an asset if the issuance costs relate to revolving debt agreements or certain other financing arrangements.
Intangible Assets
Intangible assets represent contractual rights held by the Company. The Company recognizes specifically identifiable intangible assets including emission allowances, customer and supply contracts, customer relationships, energy supply contracts, marketing partnerships, power purchase agreements, trade names emission allowances, and fuel contracts when specific rights and contracts are acquired. These intangible assets are amortized based on expected volumes, expected delivery, expected discounted future net cash flows, straight line or units of production basis. As of December 31, 20182021 and 2017,2020, the Company had accumulated amortization related to its intangible assets of $1.2$1.6 billion and $1.6$1.4 billion, respectively.
Emission allowances held-for-sale, which are included in other non-current assets on the Company's consolidated balance sheet, are not amortized; they are carried at the lower of cost or fair value and reviewed for impairment in accordance with ASC 360.
Goodwill
In accordance with ASC 350, Intangibles-Goodwill and Other, or ASC 350, the Company recognizes goodwill for the excess cost of an acquired entity over the net value assigned to assets acquired and liabilities assumed. NRG performs goodwill impairment tests annually, during the fourth quarter, and when events or changes in circumstances indicate that the carrying value may not be recoverable.
The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The more-likely-than-not threshold is defined as having a likelihood of more than 50 percent. If it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, there is no goodwill impairment.
In the absence of sufficient qualitative factors indicating that it is more-likely-than-not that no impairment occurred, the Company performs a quantitative assessment by determining the fair value of the reporting unit and comparing the fair value to its book value. If the fair value of the reporting unit exceeds its book value, goodwill of the reporting unit is not considered impaired. If the book value exceeds fair value, the Company recognizes an impairment loss equal to the difference between book value and fair value.
For further discussion of goodwill and goodwill impairment losses recognized refer to Note 10, 12, Goodwill and Other Intangibles. Intangibles.
Income Taxes
The Company accounts for income taxes using the liability method in accordance with ASC 740, Income Taxes, or ASC 740, which requires that the Company use the asset and liability method of accounting for deferred income taxes and provide deferred income taxes for all significant temporary differences.

The Company has two categories of income tax expense or benefit — current and deferred, as follows:
Current income tax expense or benefit consists solely of current taxes payable less applicable tax credits, and
Deferred income tax expense or benefit is the change in the net deferred income tax asset or liability, excluding amounts charged or credited to accumulated other comprehensive income
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The Company reports some of its revenues and expenses differently for financial statement purposes than for income tax return purposes, resulting in temporary and permanent differences between the Company's financial statements and income tax returns. The tax effects of such temporary differences are recorded as either deferred income tax assets or deferred income tax liabilities in the Company's consolidated balance sheets. The Company measures its deferred income tax assets and deferred income tax liabilities using income tax rates that are currentlyexpected to be in effect. The Company believes it is more-likely-than-not thateffect when the results of future operations will generate sufficient taxable income which includes the future reversal of existing taxable temporary differences to realize deferred tax assets, net of valuation allowances. In arriving at this conclusion to utilize projections of future profit before tax in its estimate of future taxable income, the Company considered the profit before tax generated in recent years. A valuation allowance is recorded to reduce the Company's net deferred tax assets to an amount that is more-likely-than-not to be realized.
The Company reduces its current income tax expense in the consolidated statement of operations for any investment tax credits, or ITCs, that are not convertible into cash grants, as well as other tax credits, in the period the tax credit is generated. ITCs that are convertible into cash grants, as well as the deferred income tax benefit generated by the difference in the financial statement and tax basis of the related assets, are recorded as a reduction to the carrying value of the underlying property and subsequently amortized to earnings on a straight-line basis over the useful life of each underlying property.
The Company accounts for uncertain tax positions in accordance with ASC 740, which applies to all tax positions related to income taxes. Under ASC 740, tax benefits are recognized when it is more-likely-than-not that a tax position will be sustained upon examination by the authorities. The benefit recognized from a position is the amount of benefit that has surpassed the more-likely-than-not threshold, is the largest amount of benefit thatas it is more than 50% likely to be realized upon settlement. The Company recognizes interest and penalties accrued related to uncertain tax benefits as a component of income tax expense.
In accordance with ASC 805740 and as discussed further in Note 18, 20, Income Taxes, changes to existing net deferred tax assets or valuation allowances or changes to uncertain tax benefits, are recorded to income tax (benefit)/expense.
Revenue RecognitionContract and Emission Credit Amortization
Assets and liabilities recognized through acquisitions related to the purchase and sale of energy and energy-related products in future periods for which the fair value has been determined to be significantly less or more than market are amortized to operating revenues or cost of operations over the term of each underlying contract based on actual generation and/or contracted volumes.
Emission credits represent the right to generate a specified amount of emissions, including sulfur dioxide, nitrogen oxides and carbon dioxide, over a compliance period. Emission credits held for use are amortized to cost of operations based on the weighted average cost of the allowances held.
Lease Revenue
Certain of the Company’s revenues are obtained through leases of rooftop residential solar systems, which are accounted for as operating leases in accordance with ASC 842, Leases. Pursuant to the lease agreements, the customers’ monthly payments are pre-determined fixed monthly amounts and may include an annual fixed percentage escalation to reflect the impact of utility rate increases over the lease term, which is 20 years. The Company records operating lease revenue on a straight-line basis over the life of the lease term. Certain customers made initial down payments that are being amortized over the life of the lease. The difference between the payments received and the revenue recognized is recorded as deferred revenue.
Lessor Accounting
Certain of the Company's revenues are obtained through PPAs or other contractual agreements. Many of these agreements are accounted for as operating leases under ASC 842.
Gross Receipts and Sales Taxes
In connection with its retail sales, the Company records gross receipts taxes on a gross basis in revenues and cost of operations in its consolidated statements of operations. During the years ended December 31, 2021, 2020 and 2019, the Company's revenues and cost of operations included gross receipts taxes of $184 million, $107 million and $109 million, respectively. Additionally, the Company records sales taxes collected from its taxable retail customers and remitted to the various governmental entities on a net basis; thus, there is no impact on the Company's consolidated statement of operations.
Cost of Operations
Cost of operations includes cost of fuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization, operations and maintenance, and other cost of operations.
Cost of Fuel, Purchased Energy and Other Cost of Sales
Cost of fuel is primarily the costs associated with procurement, transportation and storage of natural gas, oil and coal to operate the generation portfolio, which is expensed as the fuel is consumed. Purchased energy primarily relates to purchases to supply the Company's customer base, which includes spot market purchases, as well as contracts of various quantities and durations, including renewable purchased power agreements under PPAs with third-party developers, which are accounted for as NPNS (see further discussion in Derivative Financial Instruments below). Other cost of sales primarily consists of TDSP expenses.
The cost of fuel is based on actual and estimated fuel usage for the applicable reporting period. The cost to deliver energy and related services to customers is based on actual and estimated supply volumes for the applicable reporting period. A portion of the cost of energy, $189 million, $98 million and $103 million as of December 31, 2021, 2020 and 2019, respectively, was accrued and consisted of estimated transmission and distribution charges not yet billed by the transmission and distribution utilities.
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In estimating supply volumes, the Company considers the effects of historical customer volumes, weather factors and usage by customer class. Transmission and distribution delivery fees are estimated using the same method used for electricity sales and services to retail customers. In addition, ISO fees are estimated based on historical trends, estimated supply volumes and initial ERCOT ISO settlements. Volume estimates are then multiplied by the supply rate and recorded as cost of operations in the applicable reporting period.
Derivative Instruments
The Company accounts for derivative instruments under ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value and changes in fair value in earnings, unless they qualify for the NPNS exception. The Company's primary derivative instruments are power and natural gas purchase or sales contracts, fuels purchase contracts and other energy related commodities used to mitigate variability in earnings due to fluctuation in market prices. In addition, in order to mitigate foreign exchange risk associated with the purchase of USD denominated natural gas for the Company's Canadian business, NRG enters into foreign exchange contract agreements.
As of December 31, 2021 and 2020 the Company did not have derivative instruments that were designated as cash flow or fair value or hedge.
Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.
NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy. These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative instruments are recognized in earnings.
Mark-to-Market for Economic Hedging Activities
NRG enters into derivative instruments to manage price and delivery risk, optimize physical and contractual assets in the portfolio and manage working capital requirements. The mark-to-market for economic hedging activities are recognized to cost of operations during the reporting period.
Operations and Maintenance and Other Cost of Operations
Operations and maintenance costs include major and other routine preventative (planned outage) and corrective (forced outage) maintenance activities to ensure the safe and reliable operation of the Company's generation portfolio in compliance with all local, state and federal requirements. Operations and maintenance costs are also costs associated with retaining and maintaining the Company's customer base, such as call center support, portfolio maintenance and data analytics. Other cost of operations primarily includes gross receipts taxes, insurance, property taxes and asset retirement obligation expense.
Foreign Currency Translation and Transaction Gains and Losses
The local currencies are generally the functional currency of NRG's foreign operations. Foreign currency denominated assets and liabilities are translated at end-of-period rates of exchange. Revenues, expenses, and cash flows are translated at the weighted-average rates of exchange for the period. The resulting currency translation adjustments are not included in the Company's consolidated statements of operations for the period, but are accumulated and reported as a separate component of stockholders' equity until sale or complete or substantially complete liquidation of the net investment in the foreign entity takes place. Foreign currency transaction gains or losses are reported within other income/(expense) in the Company's consolidated statements of operations. For the years ended December 31, 2021, 2020 and 2019, amounts recognized as foreign currency transaction gains/(losses) were immaterial. The Company's cumulative translation adjustment balances as of December 31, 2021, 2020 and 2019 were $(8) million, $(2) million and $(13) million, respectively.
Concentrations of Credit Risk
Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of trust funds, accounts receivable, notes receivable, derivatives, and investments in debt securities. Trust funds are held in accounts managed by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated within entities engaged in the energy industry. These industry concentrations may impact the Company's overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. Receivables and other contractual arrangements are subject to collateral requirements under the terms of enabling agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification and creditworthiness of its customer base. See Note 5, Fair Value of Financial Instruments, for a further discussion of derivative concentrations.
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Fair Value of Financial Instruments
The carrying amount of cash and cash equivalents, funds deposited by counterparties, receivables, accounts payable, and accrued liabilities approximate fair value because of the short-term maturity of these instruments. See Note 5, Fair Value of Financial Instruments, for a further discussion of fair value of financial instruments.
Asset Retirement Obligations
The Company accounts for AROs in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can be made.
Upon initial recognition of a liability for an ARO, the Company capitalizes the asset retirement cost by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. See Note 14, Asset Retirement Obligations, for a further discussion of AROs.
Pensions and Other Postretirement Benefits
The Company offers pension benefits through a defined benefit pension plan. In addition, the Company provides postretirement health and welfare benefits for certain groups of employees. The Company accounts for pension and other postretirement benefits in accordance with ASC 715, Compensation — Retirement Benefits, or ASC 715. The Company recognizes the funded status of the Company's defined benefit plans in the statement of financial position and records an offset for gains and losses as well as all prior service costs that have not been included as part of the Company's net periodic benefit cost to other comprehensive income. The determination of the Company's obligation and expenses for pension benefits is dependent on the selection of certain assumptions. These assumptions determined by management include the discount rate, the expected rate of return on plan assets and the rate of future compensation increases. The Company's actuarial consultants assist in determining assumptions for such items as retirement age. The assumptions used may differ materially from actual results, which may result in a significant impact to the amount of pension obligation or expense recorded by the Company.
The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820.
Stock-Based Compensation
The Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's performance stock units is estimated on the date of grant using a Monte Carlo valuation model. NRG uses the Company's common stock price on the date of grant as the fair value of the Company's deferred stock units. The fair value of the Company's restricted stock units is derived from the closing price of NRG's common stock at the grant date. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award.
Investments Accounted for by the Equity Method
The Company has investments in various domestic energy projects, as well as one Australian project. The equity method of accounting is applied to such investments in affiliates, which include joint ventures and partnerships, because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of domestic partnerships and, generally, in the net income or losses of its Australian project, are reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.
Tax Equity Arrangements
The Company’s redeemable noncontrolling interest in subsidiaries represented third-party interests in the net assets under certain tax equity arrangements, which were consolidated by the Company, that had been entered into to finance the cost of solar energy systems under operating leases. The Company determined that the provisions in the contractual agreements of these structures represented substantive profit sharing arrangements. Further, the Company had determined that the appropriate methodology for calculating the redeemable noncontrolling interest that reflected the substantive profit sharing arrangements was a balance sheet approach that utilized the HLBV method. Under the HLBV method, the amounts reported as redeemable
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noncontrolling interests represented the amounts the investors that were party to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts. The investors’ interests in the results of operations of the funding structures were determined as redeemable noncontrolling interests at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds’ investors. The calculations utilized to apply the HLBV method included estimated calculations of taxable income or losses for each reporting period. During the first quarter of 2020, the Company repurchased its partners' equity interest, which was the Company's last remaining tax equity arrangement.
Redeemable Noncontrolling Interest
The following table reflects the changes in the Company's redeemable noncontrolling interest balance for the years ended December 31, 2020 and 2019.
(In millions)
Balance as of December 31, 2018$19 
Distributions to redeemable noncontrolling interest(2)
Net income attributable to redeemable noncontrolling interest - continuing operations
Balance as of December 31, 201920 
Repurchase of redeemable noncontrolling interest(20)
Balance as of December 31, 2020$
Sale-Leaseback Arrangements
NRG is party to sale-leaseback arrangements that provide for the sale of certain assets to a third party and simultaneously leases back the same asset to the Company. If the seller-lessee transfers control of the underlying assets to the buyer-lessor, the arrangement is accounted for under ASC 842-40, Sale-Leaseback Transactions. These arrangements are classified as operating leases on the Company's consolidated balance sheets. See Note 10, Leases, for further discussion.
Marketing and Advertising Costs
The Company expenses its marketing and advertising costs as incurred and includes them within selling, general and administrative expenses. The costs of tangible assets used in advertising campaigns are recorded as fixed assets or deferred advertising costs and amortized as advertising costs over the shorter of the useful life of the asset or the advertising campaign. The Company has several long-term sponsorship arrangements. Payments related to these arrangements are deferred and expensed over the term of the arrangement. Advertising expenses for the years ended December 31, 2021, 2020 and 2019 were $109 million, $74 million and $66 million, respectively.
Business Combinations
The Company accounts for its business combinations in accordance with ASC 805, Business Combinations, or ASC 805, which requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed, and any noncontrolling interest in the acquiree at fair value at the acquisition date. The Company also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination. In addition, transaction costs are expensed as incurred.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others. In addition, estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.
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Reclassifications
Certain prior period amounts have been reclassified for comparative purposes. The reclassifications did not affect results from operations, net assets or cash flows.
Recent Accounting Developments - Guidance Adopted in 2021
ASU 2019-12 — In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, or ASU 2019-12, to simplify various aspects related to accounting for income taxes. The guidance in ASU 2019-12 amends the general principles in Topic 740 to eliminate certain exceptions for recognizing deferred taxes for investment, performing intraperiod allocation and calculating income taxes in interim periods. This ASU also includes guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company adopted the amendments effective January 1, 2021 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, statements of cash flows, or statement of financial position.
ASU 2021-10 — In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 832):Disclosures by Business Entities about Government Assistance, which requires additional disclosures for transactions with a government accounted for by applying a grant or contribution model by analogy, including: (i) the nature of the transactions and the related accounting policy used to account for the transactions; (ii) the line items on the balance sheet and income statement that are affected by the transactions, and the amounts applicable to each financial statement line item; and (iii) significant terms and conditions of the transactions, including commitments and contingencies. The amendments were applied prospectively to all transactions within the scope of the amendments. Early application of the new standard is permitted and the effect of the new standard only impacted the Company’s financial statement disclosures.
Recent Accounting Developments - Guidance Not Yet Adopted
ASU 2020-06 — In August 2020, the FASB issued ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40), or ASU 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 using the modified retrospective approach. As a result of the provisions of the amended guidance, the Company estimates a $100 million decrease to additional paid-in capital, a $57 million decrease to debt discount, a $57 million increase to retained earnings, and a $14 million decrease to long-term deferred tax liabilities. The Company does not expect the adoptions of ASU 2020-06 to have a material impact on its statement of operations, statements of cash flows or earnings per share amounts.
ASU 2021-08 — In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, or ASU 2021-08. Under current GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers and other similar contracts that are accounted for in accordance with ASC 606, Revenue from Contracts with Customers
On January 1, 2018, the Company adopted the guidance in, or ASC 606, usingat fair value on the modified retrospective methodacquisition date. ASU 2021-08 requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606. At the acquisition date, an acquirer should account for the related revenue contracts in accordance with ASC 606 as if it had originated the contracts, which should generally result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements. This update also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years and should be applied prospectively to contracts that were not completed asbusiness combinations occurring on or after the effective date of the amendments. Early adoption date.is permitted, including adoption in an interim period. Adoption during an interim period requires retrospective application to all business combinations for which the acquisition date occurs on or after the beginning of the fiscal year that includes the interim period of early application and prospectively to all business combinations that occur on or after the date of initial application. The Company recognized the cumulative effect of initially applying the new standard as a credit to the opening balance of accumulated deficit, resulting in a decrease of approximately $15 million. The adjustment primarily related to costs incurred to obtain a contract with customers and customer incentives. Followingdoes not expect the adoption of ASU 2021-08 to have a material impact on the new standard, the Company’s revenue recognition of its contracts with customers remains materially consistent with its historical practice. The comparative information has not been restatedconsolidated financial statements and continues to be reported under the accounting standards in effect for those periods. disclosures.



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Note 3Revenue Recognition
The Company's policies with respect to its various revenue streams are detailed below. In general, theThe Company generally applies the invoicing practical expedient to recognize revenue for the revenue streams detailed below, except in circumstances where the invoiced amount does not represent the value transferred to the customer.
Retail RevenuesRevenue
Gross revenues for energy sales and services to retail customers are recognized as the Company transfers the promised goods and services to the customer. For the majority of its electricity and natural gas contracts, the Company’s performance obligation with the customer is satisfied over time and performance obligations for its electricity and natural gas products are recognized as the customer takes possession of the product. The Company also allocates the contract consideration to distinct performance obligationobligations in a contract for which the timing of the revenue recognized is different. Additionally, customer discounts and incentives reduce the contract consideration and are recognized over the term of the contract.
Energy sales and services that have been delivered but not billed by period end are estimated. Accrued unbilled revenues are based on estimates of customer usage since the date of the last meter reading provided by the independent system operators, utilities, or electric distribution companies. Volume estimates are based on daily forecasted volumes and estimated customer usage by class. Unbilled revenues are calculated by multiplying these volume estimates by the applicable rate by customer class. Estimated amounts are adjusted when actual usage is known and billed.

As contracts for retail electricity and natural gas can be for multi-year periods, the Company has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other contract-specific factors. For the fixed price contracts, the amount of any unsatisfied performance obligations will vary based on customer usage, which will depend on factors such as weather and customer activity and therefore it is not practicable to estimate such amounts.
EnergyLease Revenue
Both physicalCertain of the Company’s revenues are obtained through leases of rooftop residential solar systems, which are accounted for as operating leases in accordance with ASC 842, Leases. Pursuant to the lease agreements, the customers’ monthly payments are pre-determined fixed monthly amounts and financial transactionsmay include an annual fixed percentage escalation to reflect the impact of utility rate increases over the lease term, which is 20 years. The Company records operating lease revenue on a straight-line basis over the life of the lease term. Certain customers made initial down payments that are entered into to optimizebeing amortized over the financial performancelife of the lease. The difference between the payments received and the revenue recognized is recorded as deferred revenue.
Lessor Accounting
Certain of the Company's generating facilities. Electric energy revenue is recognized upon transmission torevenues are obtained through PPAs or other contractual agreements. Many of these agreements are accounted for as operating leases under ASC 842.
Gross Receipts and Sales Taxes
In connection with its retail sales, the customer over time, using the output method for measuring progress of satisfaction of performance obligations. Physical transactions, or the sale of generated electricity to meet supply and demand, are recordedCompany records gross receipts taxes on a gross basis in revenues and cost of operations in its consolidated statements of operations. During the years ended December 31, 2021, 2020 and 2019, the Company's revenues and cost of operations included gross receipts taxes of $184 million, $107 million and $109 million, respectively. Additionally, the Company records sales taxes collected from its taxable retail customers and remitted to the various governmental entities on a net basis; thus, there is no impact on the Company's consolidated statement of operations.
Cost of Operations
Cost of operations includes cost of fuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization, operations and maintenance, and other cost of operations.
Cost of Fuel, Purchased Energy and Other Cost of Sales
Cost of fuel is primarily the costs associated with procurement, transportation and storage of natural gas, oil and coal to operate the generation portfolio, which is expensed as the fuel is consumed. Purchased energy primarily relates to purchases to supply the Company's customer base, which includes spot market purchases, as well as contracts of various quantities and durations, including renewable purchased power agreements under PPAs with third-party developers, which are accounted for as NPNS (see further discussion in Derivative Financial Instruments below). Other cost of sales primarily consists of TDSP expenses.
The cost of fuel is based on actual and estimated fuel usage for the applicable reporting period. The cost to deliver energy and related services to customers is based on actual and estimated supply volumes for the applicable reporting period. A portion of the cost of energy, $189 million, $98 million and $103 million as of December 31, 2021, 2020 and 2019, respectively, was accrued and consisted of estimated transmission and distribution charges not yet billed by the transmission and distribution utilities.
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In estimating supply volumes, the Company considers the effects of historical customer volumes, weather factors and usage by customer class. Transmission and distribution delivery fees are estimated using the same method used for electricity sales and services to retail customers. In addition, ISO fees are estimated based on historical trends, estimated supply volumes and initial ERCOT ISO settlements. Volume estimates are then multiplied by the supply rate and recorded as cost of operations in the applicable reporting period.
Derivative Instruments
The Company accounts for derivative instruments under ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value and changes in fair value in earnings, unless they qualify for the NPNS exception. The Company's primary derivative instruments are power and natural gas purchase or sales contracts, fuels purchase contracts and other energy related commodities used to mitigate variability in earnings due to fluctuation in market prices. In addition, in order to mitigate foreign exchange risk associated with the purchase of USD denominated natural gas for the Company's Canadian business, NRG enters into foreign exchange contract agreements.
As of December 31, 2021 and 2020 the Company did not have derivative instruments that were designated as cash flow or fair value or hedge.
Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.
NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy. These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative instruments are recognized in earnings.
Mark-to-Market for Economic Hedging Activities
NRG enters into derivative instruments to manage price and delivery risk, optimize physical and contractual assets in the portfolio and manage working capital requirements. The mark-to-market for economic hedging activities are recognized to cost of operations during the reporting period.
Operations and Maintenance and Other Cost of Operations
Operations and maintenance costs include major and other routine preventative (planned outage) and corrective (forced outage) maintenance activities to ensure the safe and reliable operation of the Company's generation portfolio in compliance with all local, state and federal requirements. Operations and maintenance costs are also costs associated with retaining and maintaining the Company's customer base, such as call center support, portfolio maintenance and data analytics. Other cost of operations primarily includes gross receipts taxes, insurance, property taxes and asset retirement obligation expense.
Foreign Currency Translation and Transaction Gains and Losses
The local currencies are generally the functional currency of NRG's foreign operations. Foreign currency denominated assets and liabilities are translated at end-of-period rates of exchange. Revenues, expenses, and cash flows are translated at the weighted-average rates of exchange for the period. The resulting currency translation adjustments are not included in the Company's consolidated statements of operations for the period, but are accumulated and reported as a separate component of stockholders' equity until sale or complete or substantially complete liquidation of the net investment in the foreign entity takes place. Foreign currency transaction gains or losses are reported within other income/(expense) in the Company's consolidated statements of operations. For the years ended December 31, 2021, 2020 and 2019, amounts recognized as foreign currency transaction gains/(losses) were immaterial. The Company's cumulative translation adjustment balances as of December 31, 2021, 2020 and 2019 were $(8) million, $(2) million and $(13) million, respectively.
Concentrations of Credit Risk
Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of trust funds, accounts receivable, notes receivable, derivatives, and investments in debt securities. Trust funds are held in accounts managed by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated within entities engaged in the energy industry. These industry concentrations may impact the Company's overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. Receivables and other contractual arrangements are subject to collateral requirements under the terms of enabling agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification and creditworthiness of its customer base. See Note 5, Fair Value of Financial Instruments, for a further discussion of derivative concentrations.
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Fair Value of Financial Instruments
The carrying amount of cash and cash equivalents, funds deposited by counterparties, receivables, accounts payable, and accrued liabilities approximate fair value because of the short-term maturity of these instruments. See Note 5, Fair Value of Financial Instruments, for a further discussion of fair value of financial instruments.
Asset Retirement Obligations
The Company accounts for AROs in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can be made.
Upon initial recognition of a liability for an ARO, the Company capitalizes the asset retirement cost by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. See Note 14, Asset Retirement Obligations, for a further discussion of AROs.
Pensions and Other Postretirement Benefits
The Company offers pension benefits through a defined benefit pension plan. In addition, the Company provides postretirement health and welfare benefits for certain groups of employees. The Company accounts for pension and other postretirement benefits in accordance with ASC 715, Compensation — Retirement Benefits, or ASC 715. The Company recognizes the funded status of the Company's defined benefit plans in the statement of financial position and records an offset for gains and losses as well as all prior service costs that have not been included as part of the Company's net periodic benefit cost to other comprehensive income. The determination of the Company's obligation and expenses for pension benefits is dependent on the selection of certain assumptions. These assumptions determined by management include the discount rate, the expected rate of return on plan assets and the rate of future compensation increases. The Company's actuarial consultants assist in determining assumptions for such items as retirement age. The assumptions used may differ materially from actual results, which may result in a significant impact to the amount of pension obligation or expense recorded by the Company.
The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820.
Stock-Based Compensation
The Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's performance stock units is estimated on the date of grant using a Monte Carlo valuation model. NRG uses the Company's common stock price on the date of grant as the fair value of the Company's deferred stock units. The fair value of the Company's restricted stock units is derived from the closing price of NRG's common stock at the grant date. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award.
Investments Accounted for by the Equity Method
The Company has investments in various domestic energy projects, as well as one Australian project. The equity method of accounting is applied to such investments in affiliates, which include joint ventures and partnerships, because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of domestic partnerships and, generally, in the net income or losses of its Australian project, are reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.
Tax Equity Arrangements
The Company’s redeemable noncontrolling interest in subsidiaries represented third-party interests in the net assets under certain tax equity arrangements, which were consolidated by the Company, that had been entered into to finance the cost of solar energy systems under operating leases. The Company determined that the provisions in the contractual agreements of these structures represented substantive profit sharing arrangements. Further, the Company had determined that the appropriate methodology for calculating the redeemable noncontrolling interest that reflected the substantive profit sharing arrangements was a balance sheet approach that utilized the HLBV method. Under the HLBV method, the amounts reported as redeemable
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noncontrolling interests represented the amounts the investors that were party to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts. The investors’ interests in the results of operations of the funding structures were determined as redeemable noncontrolling interests at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds’ investors. The calculations utilized to apply the HLBV method included estimated calculations of taxable income or losses for each reporting period. During the first quarter of 2020, the Company repurchased its partners' equity interest, which was the Company's last remaining tax equity arrangement.
Redeemable Noncontrolling Interest
The following table reflects the changes in the Company's redeemable noncontrolling interest balance for the years ended December 31, 2020 and 2019.
(In millions)
Balance as of December 31, 2018$19 
Distributions to redeemable noncontrolling interest(2)
Net income attributable to redeemable noncontrolling interest - continuing operations
Balance as of December 31, 201920 
Repurchase of redeemable noncontrolling interest(20)
Balance as of December 31, 2020$
Sale-Leaseback Arrangements
NRG is party to sale-leaseback arrangements that provide for the sale of certain assets to a third party and simultaneously leases back the same asset to the Company. If the seller-lessee transfers control of the underlying assets to the buyer-lessor, the arrangement is accounted for under ASC 842-40, Sale-Leaseback Transactions. These arrangements are classified as operating leases on the Company's consolidated balance sheets. See Note 10, Leases, for further discussion.
Marketing and Advertising Costs
The Company expenses its marketing and advertising costs as incurred and includes them within selling, general and administrative expenses. The costs of tangible assets used in advertising campaigns are recorded as fixed assets or deferred advertising costs and amortized as advertising costs over the shorter of the useful life of the asset or the advertising campaign. The Company has several long-term sponsorship arrangements. Payments related to these arrangements are deferred and expensed over the term of the arrangement. Advertising expenses for the years ended December 31, 2021, 2020 and 2019 were $109 million, $74 million and $66 million, respectively.
Business Combinations
The Company accounts for its business combinations in accordance with ASC 805, Business Combinations, or ASC 805, which requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed, and any noncontrolling interest in the acquiree at fair value at the acquisition date. The Company also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination. In addition, transaction costs are expensed as incurred.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others. In addition, estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.
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Reclassifications
Certain prior period amounts have been reclassified for comparative purposes. The reclassifications did not affect results from operations, net assets or cash flows.
Recent Accounting Developments - Guidance Adopted in 2021
ASU 2019-12 — In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, or ASU 2019-12, to simplify various aspects related to accounting for income taxes. The guidance in ASU 2019-12 amends the general principles in Topic 740 to eliminate certain exceptions for recognizing deferred taxes for investment, performing intraperiod allocation and calculating income taxes in interim periods. This ASU also includes guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company adopted the amendments effective January 1, 2021 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, statements of cash flows, or statement of financial position.
ASU 2021-10 — In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 832):Disclosures by Business Entities about Government Assistance, which requires additional disclosures for transactions with a government accounted for by applying a grant or contribution model by analogy, including: (i) the nature of the transactions and the related accounting policy used to account for the transactions; (ii) the line items on the balance sheet and income statement that are affected by the transactions, and the amounts applicable to each financial statement line item; and (iii) significant terms and conditions of the transactions, including commitments and contingencies. The amendments were applied prospectively to all transactions within the scope of the amendments. Early application of the new standard is permitted and the effect of the new standard only impacted the Company’s financial statement disclosures.
Recent Accounting Developments - Guidance Not Yet Adopted
ASU 2020-06 — In August 2020, the FASB issued ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40), or ASU 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 using the modified retrospective approach. As a result of the provisions of the amended guidance, the Company estimates a $100 million decrease to additional paid-in capital, a $57 million decrease to debt discount, a $57 million increase to retained earnings, and a $14 million decrease to long-term deferred tax liabilities. The Company does not expect the adoptions of ASU 2020-06 to have a material impact on its statement of operations, statements of cash flows or earnings per share amounts.
ASU 2021-08 — In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, or ASU 2021-08. Under current GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers and other similar contracts that are accounted for in accordance with ASC 606, Revenue from Contracts with Customers, or ASC 606, at fair value on the acquisition date. ASU 2021-08 requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606. At the acquisition date, an acquirer should account for the related revenue contracts in accordance with ASC 606 as if it had originated the contracts, which should generally result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements. This update also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years and should be applied prospectively to business combinations occurring on or after the effective date of the amendments. Early adoption is permitted, including adoption in an interim period. Adoption during an interim period requires retrospective application to all business combinations for which the acquisition date occurs on or after the beginning of the fiscal year that includes the interim period of early application and prospectively to all business combinations that occur on or after the date of initial application. The Company does not expect the adoption of ASU 2021-08 to have a material impact on the consolidated financial statements and disclosures.



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Note 3Revenue Recognition
The Company's policies with respect to its various revenue streams are detailed below. The Company generally applies the invoicing practical expedient where applicable,to recognize revenue for the revenue streams detailed below, except in recognizing energy revenue. Under the practical expedient, revenue is recognized based oncircumstances where the invoiced amount which is equaldoes not represent the value transferred to the valuecustomer.
Retail Revenue
Gross revenues for energy sales and services to retail customers are recognized as the Company transfers the promised goods and services to the customercustomer. For the majority of NRG’sits electricity and natural gas contracts, the Company’s performance obligation completed to date. Financial transactions, orwith the buyingcustomer is satisfied over time and selling of energyperformance obligations for trading purposes, are recorded net within operating revenues in the consolidated statements of operations in accordance with ASC 815.
Capacity Revenue
Capacity revenues consist of revenues billed to a third party at either the market or a negotiated contract price for making installed generationits electricity and demand response capacity available in order to satisfy system integrity and reliability requirements. Capacity revenuesnatural gas products are recognized over time, usingas the output method for measuring progresscustomer takes possession of satisfaction of performance obligations.the product. The Company appliesalso allocates the invoicing practical expedient, where applicable, in recognizing capacity revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equalcontract consideration to the value to the customer of NRG’s performance obligation completed to date.
Capacity revenue contracts mainly consist of:
Capacity auctions — The Company's largest sources of capacity revenues are capacity auctions in PJM, ISO-NE, and NYISO. Both ISO-NE and PJM operate a pay-for-performance model where capacity payments are modified based on real-time performance, where NRG's actual revenues will be the combination of revenues based on the cleared auction MWs plus the net of any over- and under-performance of NRG's fleet. In addition, MISO has an annual auction, known as the Planning Resource Auction, or PRA. As of December 31, 2018, estimated future revenues for cleared auction MWs in the various capacity auctions are $618 million, $481 million, $532 million, and $244 million for fiscal years 2019, 2020, 2021 and 2022, respectively.
Resource adequacy and bilateral contracts — In California, there is a resource adequacy requirement that is primarily satisfied through bilateral contracts. Such bilateral contracts are typically short-term resource adequacy contracts. When bilateral contracting does not satisfy the resource adequacy need, such shortfalls can be addressed through procurement tools administered by the CAISO, including the capacity procurement mechanism or reliability must-run contracts. Demand payments from the current long-term contracts are tied to summer peak demand and provide a mechanism for recovering a portion of the costs associated with new or changed environmental laws or regulations. In Texas and New York, capacity and contracted revenues are through bilateral contracts with third parties of our Retail segment.
Renewable Energy Credits
Renewable energy credits are usually sold through long-term contracts. Revenue from the sale of self-generated RECs is recognized when related energy is generated and simultaneously delivered even in cases where there is a certification lag as it has been deemed to be perfunctory.
In a bundled contract to sell energy, capacity and/or self-generated RECs, alldistinct performance obligations are deemed to be delivered at the same time and hence, timing of recognition of revenue for all performance obligations is the same and occurs over time. In such cases, it is often unnecessary to allocate transaction price to multiple performance obligations.
Sale of Emission Allowances
The Company records its inventory of emission allowances as part of intangible assets. From time to time, management may authorize the transfer of emission allowances in excess of expected usage from the Company's emission bank to intangible assets held-for-sale for trading purposes. The Company records the sale of emission allowances on a net basis within operating revenue in the Company's consolidated statements of operations.

Disaggregated Revenues
The following table represents the Company’s disaggregation of revenue from contracts with customers for the year ended December 31, 2018, along with the reportable segment for each category:
 For the Year Ended December 31, 2018
   Generation    
(In millions)Retail Texas East/West/Other Subtotal Corporate/Eliminations Total
Energy revenue(a)
$
 $1,585
 $1,092
 $2,677
 $(1,129) $1,548
Capacity revenue(a)

 1
 669
 670
 
 670
Retail revenue           
Mass customers5,618
 
 
 
 (5) 5,613
Business Solutions customers1,492
 
 
 
 
 1,492
Total retail revenue7,110
 
 
 
 (5) 7,105
Mark-to-market for economic hedging activities(b)
(7) (174) (28) (202) 79
 (130)
Other revenue(a)(c)

 84
 203
 287
 (2) 285
Total operating revenue7,103
 1,496
 1,936
 3,432
 (1,057) 9,478
Less: Lease revenue13
 
 8
 8
 
 21
Less: Derivative revenue(7) 2,160
 193
 2,353
 (1,037) 1,309
Total revenue from contracts with customers$7,097
 $(664) $1,735
 $1,071
 $(20) $8,148
(a) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
 Retail Texas East/West/Other Subtotal Corporate/Eliminations Total
Energy revenue$
 $2,332
 $69
 $2,401
 $(1,117) $1,284
Capacity revenue
 
 138
 138
 
 138
Other revenue
 2
 14
 16
 
 16
(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
(c) Included in other revenue is lease revenue of $17 million and $5 million for Retail and East/West/Other, respectively
Contract Amortization
Assets and liabilities recognized through acquisitions related to the sale of electric capacity and energy in future periodscontract for which the fair value has been determined to be significantly less (more) than markettiming of the revenue recognized is different. Additionally, customer discounts and incentives reduce the contract consideration and are amortized to revenuerecognized over the term of each underlying contractthe contract.
Energy sales and services that have been delivered but not billed by period end are estimated. Accrued unbilled revenues are based on estimates of customer usage since the date of the last meter reading provided by the independent system operators, utilities, or electric distribution companies. Volume estimates are based on daily forecasted volumes and estimated customer usage by class. Unbilled revenues are calculated by multiplying these volume estimates by the applicable rate by customer class. Estimated amounts are adjusted when actual generation and/or contracted volumes.usage is known and billed.
As contracts for retail electricity and natural gas can be for multi-year periods, the Company has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other contract-specific factors. For the fixed price contracts, the amount of any unsatisfied performance obligations will vary based on customer usage, which will depend on factors such as weather and customer activity and therefore it is not practicable to estimate such amounts.
Lease Revenue
Certain of the Company’s revenues are obtained through leases of rooftop residential solar systems, which are accounted for as operating leases in accordance with ASC 840, 842, Leases. Pursuant to the lease agreements, the customers’ monthly payments are pre-determined fixed monthly amounts and may include an annual fixed percentage escalation to reflect the impact of utility rate increases over the lease term, which is 20 years. The Company records operating lease revenue on a straight-line basis over the life of the lease term. Certain customers made initial down payments that are being amortized over the life of the lease. The difference between the payments received and the revenue recognized is recorded as deferred revenue.


Contract Balances
The following table reflects the contract assets and liabilities included in the Company's balance sheet as of December 31, 2018:
   
  (In millions)
Deferred customer acquisition costs $111
   
Accounts receivable, net - Contracts with customers 1,002
Accounts receivable, net - Derivative instruments 20
Total accounts receivable, net $1,022
   
Unbilled revenues (included within Accounts receivable, net - Contracts with customers) $392
Deferred revenues $67
The Company's customer acquisition costs consist of broker fees, commission payments and other costs that represent incremental costs of obtaining the contract with customers for which the Company expects to recover. The Company amortizes these amounts over the estimated life of the customer contract. As a practical expedient, the Company expenses the incremental costs of obtaining a contract if the amortization period of the asset would have been one year or less.
When the Company receives consideration from the customer that is in excess of the amount due, such consideration is reclassified to deferred revenue, which represents a contract liability. Generally, the Company will recognize revenue from contract liabilities in the next period as the Company satisfies its performance obligations.
Lessor Accounting
Certain of the Company's revenues are obtained through PPAs or other contractual agreements. Many of these agreements are accounted for as operating leases under ASC 840 Leases.
Certain of these leases have no minimum lease payments and all of the rent is recorded as contingent rent on an actual basis when the electricity is delivered. Judgment is required by management in determining the economic life of each generating facility, in evaluating whether certain lease provisions constitute minimum payments or represent contingent rent and other factors in determining whether a contract contains a lease and whether the lease is an operating lease or capital lease. Contingent rental income recognized in the years ended December 31, 2018, 2017, and 2016 was $104 million, $253 million, and $272 million, respectively.842.
Gross Receipts and Sales Taxes
In connection with its retail business,sales, the Company records gross receipts taxes on a gross basis in revenues and cost of operations in its consolidated statements of operations. During the years ended December 31, 2018, 2017,2021, 2020 and 2016,2019, the Company's revenues and cost of operations included gross receipts taxes of $99$184 million,, $92 $107 million and $101$109 million,, respectively. Additionally, the retail businessCompany records sales taxes collected from its taxable retail customers and remitted to the various governmental entities on a net basis; thus, there is no impact on the Company's consolidated statement of operations.
Cost of Energy for Retail Operations
Cost of operations includes cost of fuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization, operations and maintenance, and other cost of operations.
Cost of Fuel, Purchased Energy and Other Cost of Sales
Cost of fuel is primarily the costs associated with procurement, transportation and storage of natural gas, oil and coal to operate the generation portfolio, which is expensed as the fuel is consumed. Purchased energy primarily relates to purchases to supply the Company's customer base, which includes spot market purchases, as well as contracts of various quantities and durations, including renewable purchased power agreements under PPAs with third-party developers, which are accounted for as NPNS (see further discussion in Derivative Financial Instruments below). Other cost of sales primarily consists of TDSP expenses.
The cost of fuel is based on actual and estimated fuel usage for the applicable reporting period. The cost to deliver energy for electricity sales and related services to retail customers is included in cost of operations and is based on actual and estimated supply volumes for the applicable reporting period. A portion of the cost of energy, $105$189 million,, $107 $98 million, and $90$103 million as of December 31, 2018, 2017,2021, 2020 and 2016,2019, respectively, was accrued and consisted of estimated transmission and distribution charges not yet billed by the transmission and distribution utilities.
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In estimating supply volumes, the Company considers the effects of historical customer volumes, weather factors and usage by customer class. Transmission and distribution delivery fees are estimated using the same method used for electricity sales and services to retail customers. In addition, ISO fees are estimated based on historical trends, estimated supply volumes and initial ERCOT ISO settlements. Volume estimates are then multiplied by the supply rate and recorded as cost of operations in the applicable reporting period.

Derivative Financial Instruments
The Company accounts for derivative financial instruments under ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value and changes in fair value in earnings, unless they qualify for athe NPNS exception. Changes in the fair value of non-hedge derivatives are immediately recognized in earnings. Changes in the fair value of derivatives accounted for as cash flow hedges, if elected for hedge accounting, are deferred and recorded as a component of accumulated OCI until the hedged transactions occur and are recognized in earnings.
The Company's primary derivative instruments are power and natural gas purchase or sales contracts, fuels purchase contracts and other energy related commodities and interest rate instruments used to mitigate variability in earnings due to fluctuationsfluctuation in market prices and interest rates. On an ongoing basis, the Company assesses the effectiveness of all derivatives that are designated as hedges for accounting purposesprices. In addition, in order to determinemitigate foreign exchange risk associated with the purchase of USD denominated natural gas for the Company's Canadian business, NRG enters into foreign exchange contract agreements.
As of December 31, 2021 and 2020 the Company did not have derivative instruments that each derivative continues to be highly effective in offsetting changes in fair values or cash flows of hedged items. Internal analyses that measure the statistical correlation between the derivative and the associated hedged item determine the effectiveness of such a contractwere designated as acash flow or fair value or hedge. If it is determined that the derivative instrument is not highly effective as a hedge, hedge accounting will be discontinued prospectively. In this case, the gain or loss previously deferred in accumulated OCI would be frozen until the underlying hedged instrument is delivered unless the transactions being hedged are no longer probable of occurring in which case the amount in OCI would be immediately reclassified into earnings. If the derivative instrument is terminated, the effective portion of this derivative deferred in accumulated OCI will be frozen until the underlying hedged item is delivered.
Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative financial instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.
NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy. These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative financial instruments are recognized in earnings.
Mark-to-Market for Economic Hedging Activities
NRG enters into derivative instruments to manage price and delivery risk, optimize physical and contractual assets in the portfolio and manage working capital requirements. The mark-to-market for economic hedging activities are recognized to cost of operations during the reporting period.
Operations and Maintenance and Other Cost of Operations
Operations and maintenance costs include major and other routine preventative (planned outage) and corrective (forced outage) maintenance activities to ensure the safe and reliable operation of the Company's generation portfolio in compliance with all local, state and federal requirements. Operations and maintenance costs are also costs associated with retaining and maintaining the Company's customer base, such as call center support, portfolio maintenance and data analytics. Other cost of operations primarily includes gross receipts taxes, insurance, property taxes and asset retirement obligation expense.
Foreign Currency Translation and Transaction Gains and Losses
The local currencies are generally the functional currency of NRG's foreign operations. Foreign currency denominated assets and liabilities are translated at end-of-period rates of exchange. Revenues, expenses, and cash flows are translated at the weighted-average rates of exchange for the period. The resulting currency translation adjustments are not included in the Company's consolidated statements of operations for the period, but are accumulated and reported as a separate component of stockholders' equity until sale or complete or substantially complete liquidation of the net investment in the foreign entity takes place. Foreign currency transaction gains or losses are reported within other income/(expense) in the Company's consolidated statements of operations. For the years ended December 31, 2018, 2017,2021, 2020 and 2016,2019, amounts recognized as foreign currency transaction gains gains/(losses) were immaterial. The Company's cumulative translation adjustment balances as of December 31, 2018, 2017,2021, 2020 and 20162019 were $(13)$(8) million,, $(2) $(2) million and $(11)$(13) million, respectively.
Concentrations of Credit Risk
Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of trust funds, accounts receivable, notes receivable, derivatives, and investments in debt securities. Trust funds are held in accounts managed by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated within entities engaged in the energy industry. These industry concentrations may impact the Company's overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. Receivables and other contractual arrangements are subject to collateral requirements under the terms of enabling agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification and creditworthiness of its customer base. See Note 4, 5, Fair Value of Financial Instruments,, for a further discussion of derivative concentrations.
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Fair Value of Financial Instruments
The carrying amount of cash and cash equivalents, funds deposited by counterparties, receivables, accounts payable, and accrued liabilities approximate fair value because of the short-term maturity of these instruments. See Note 4, 5, Fair Value of Financial Instruments,, for a further discussion of fair value of financial instruments.

Asset Retirement Obligations
The Company accounts for AROs in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can be made.
Upon initial recognition of a liability for an ARO, the Company capitalizes the asset retirement cost by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. See Note 12 , 14, Asset Retirement Obligations,, for a further discussion of AROs.
Pensions and Other Postretirement Benefits
The Company offers pension benefits through a defined benefit pension plan. In addition, the Company provides postretirement health and welfare benefits for certain groups of employees. The Company accounts for pension and other postretirement benefits in accordance with ASC 715, Compensation — Retirement Benefits.Benefits, or ASC 715. The Company recognizes the funded status of the Company's defined benefit plans in the statement of financial position and records an offset for gains and losses as well as all prior service costs that have not been included as part of the Company's net periodic benefit cost to other comprehensive income. The determination of the Company's obligation and expenses for pension benefits is dependent on the selection of certain assumptions. These assumptions determined by management include the discount rate, the expected rate of return on plan assets and the rate of future compensation increases. The Company's actuarial consultants assist in determining assumptions for such items as retirement age. The assumptions used may differ materially from actual results, which may result in a significant impact to the amount of pension obligation or expense recorded by the Company.
The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820.
Stock-Based Compensation
The Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's non-qualified stock options and marketperformance stock units areis estimated on the date of grant using the Black-Scholes option-pricing model and thea Monte Carlo valuation model, respectively.model. NRG uses the Company's common stock price on the date of grant as the fair value of the Company's deferred stock units. The fair value of the Company's restricted stock units and deferredis derived from the closing price of NRG's common stock units.at the grant date. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award.
Investments Accounted for by the Equity Method
The Company has investments in various domestic energy projects, as well as one Australian project. The equity method of accounting is applied to such investments in affiliates, which include joint ventures and partnerships, because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of domestic partnerships and, generally, in the net income or losses of its Australian project, are reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.

Tax Equity Arrangements
The Company’s redeemable noncontrolling interest in subsidiaries and certain amounts within noncontrolling interest, included in stockholders' equity, representrepresented third-party interests in the net assets under certain tax equity arrangements, which arewere consolidated by the Company, that havehad been entered into to finance the cost of solar energy systems under operating leases and wind facilities eligible for certain tax credits.leases. The Company has determined that the provisions in the contractual agreements of these structures representrepresented substantive profit sharing arrangements. Further, the Company hashad determined that the appropriate methodology for calculating the noncontrolling interest and redeemable noncontrolling interest that reflectsreflected the substantive profit sharing arrangements iswas a balance sheet approach utilizingthat utilized the HLBV method. Under the HLBV method, the amounts reported as noncontrolling interest and redeemable
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noncontrolling interests representrepresented the amounts the investors that arewere party to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts determined in accordance with GAAP.amounts. The investors’ interests in the results of operations of the funding structures arewere determined as the difference in noncontrolling interest and redeemable noncontrolling interests at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds’ investors. The calculations utilized to apply the HLBV method includeincluded estimated calculations of taxable income or losses for each reporting period. During the first quarter of 2020, the Company repurchased its partners' equity interest, which was the Company's last remaining tax equity arrangement.
Redeemable Noncontrolling Interest
To the extent that the third-party has the right to redeem their interests for cash or other assets, the Company has included the noncontrolling interest attributable to the third party as a component of temporary equity in the mezzanine section of the consolidated balance sheet. The following table reflects the changes in the Company's redeemable noncontrolling interest balance for the years ended December 31, 2018, 2017,2020 and 2016.2019.
 (In millions)
Balance as of December 31, 2015$29
Distributions to redeemable noncontrolling interest(1)
Contributions from redeemable noncontrolling interest33
Non-cash adjustments to redeemable noncontrolling interest23
Comprehensive loss attributable to redeemable noncontrolling interest(38)
Balance as of December 31, 201646
Distributions to redeemable noncontrolling interest(2)
Contributions from redeemable noncontrolling interest99
Non-cash adjustments to redeemable noncontrolling interest7
Comprehensive loss attributable to redeemable noncontrolling interest(72)
Balance as of December 31, 201778
Distributions to redeemable noncontrolling interest(3)
Contributions from redeemable noncontrolling interest26
Non-cash adjustments to redeemable noncontrolling interest(8)
Net income attributable to redeemable noncontrolling interest - continuing operations1
Net loss attributable to redeemable noncontrolling interest - discontinued operations(27)
Sale of NRG Yield and the Renewables Platform(a)
(48)
Balance as of December 31, 2018$19
(a) See Note 3, Acquisitions, Discontinued Operations and Dispositions, for further information regarding the sale of NRG Yield and its Renewables Platform
(In millions)
Balance as of December 31, 2018$19 
Distributions to redeemable noncontrolling interest(2)
Net income attributable to redeemable noncontrolling interest - continuing operations
Balance as of December 31, 201920 
Repurchase of redeemable noncontrolling interest(20)
Balance as of December 31, 2020$
Sale-Leaseback Arrangements
NRG is party to sale-leaseback arrangements that provide for the sale of certain assets to a third party and simultaneous leasebacksimultaneously leases back the same asset to the Company. In accordance with ASC 840-40, Sale-Leaseback Transactions, ifIf the seller-lessee retains, through the leaseback, substantially alltransfers control of the benefits and risks incidentunderlying assets to the ownership ofbuyer-lessor, the property sold, the sale-leaseback transactionarrangement is accounted for under ASC 842-40, Sale-Leaseback Transactions. These arrangements are classified as a financing arrangement. An example of this type of continuing involvement would include an option to repurchase the assets or the buyer-lessor having the option to sell the assets back to the Company. This provision is included in most of the Company’s sale-leaseback arrangements. As such, the Company accounts for these arrangements as financings.

Under the financing method, the Company does not recognize as income any of the sale proceeds received from the lessor that contractually constitutes payment to acquire the assets subject to these arrangements. Instead, the sale proceeds received are accounted for as financing obligations and leaseback payments made by the Company are allocated between interest expense and as a reduction to the financing obligation. Interestoperating leases on the financing obligation is calculated using the Company’s incremental borrowing rate at the inception of the arrangement on the outstanding financing obligation. Judgment is required to determine the appropriate borrowing rate Company's consolidated balance sheets. See Note 10, Leases, for the arrangement and in determining any gain or loss on the transaction that would be recorded either at the end of or over the lease term.further discussion.
As described in Note 3, Acquisitions, Discontinued Operations and Dispositions, the Company entered into an agreement to leaseback the Cottonwood facility upon the close of the South Central Portfolio transaction. The lease will be accounted for as an operating lease and accordingly, a right of use asset and lease liability will be set up on the lease commencement date which will be amortized through the end of the lease.
Marketing and Advertising Costs
The Company expenses its marketing and advertising costs as incurred and which are includedincludes them within selling, general and administrative expenses. The costs of tangible assets used in advertising campaigns are recorded as fixed assets or deferred advertising costs and amortized as advertising costs over the shorter of the useful life of the asset or the advertising campaign. The Company has several long-term sponsorship arrangements. Payments related to these arrangements are deferred and expensed over the term of the arrangement. Advertising expenses for the years ended December 31, 2018, 2017,2021, 2020 and 20162019 were $73$109 million, $74 million and $66 million, and $79 million, respectively.
Reorganization Costs
Reorganization costs include costs incurred by the Company related to the Transformation Plan implementation and primarily reflect severance and contract modifications. As of December 31, 2018 and December 31, 2017, $90 million and $44 million were incurred.
Business Combinations
The Company accounts for its business combinations in accordance with ASC 805, Business Combinations, or ASC 805. ASC 805, which requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed, and any noncontrolling interest in the acquiree at fair value at the acquisition date. ItThe Company also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination and determines what information to disclose to enable users of an entity's financial statements to evaluate the nature and financial effects of the business combination. In addition, transaction costs are expensed as incurred.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others. In addition, estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.
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Reclassifications
Certain prior yearperiod amounts have been reclassified for comparative purposes. The reclassifications did not affect results from operations, net assets or cash flows.

Recent Accounting Developments - Guidance Adopted in 20182021
ASU 2017-072019-12In March 2017,December 2019, the FASB issued ASU No. 2017-07, Compensation - Retirement Benefits2019-12, Income Taxes (Topic 715), Improving740): Simplifying the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, Accounting for Income Taxes, or ASU No. 2017-07.   Previous GAAP does not indicate where2019-12, to simplify various aspects related to accounting for income taxes. The guidance in ASU 2019-12 amends the amountgeneral principles in Topic 740 to eliminate certain exceptions for recognizing deferred taxes for investment, performing intraperiod allocation and calculating income taxes in interim periods. This ASU also includes guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of net benefit cost should be presented in an entity’s income statementa consolidated group. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and does not require entities to disclose the amount of net benefit cost that is included in the income statement. The amendments of ASU No. 2017-07 require an entity to report the service cost component of net benefit costs in the same line item as other compensation costs arising from services rendered by the related employees during the applicable service period. The other components of net benefit cost are required to be presented separately from the service cost component and outside the subtotal of income from operations. Further, ASU No. 2017-07 prescribes that only the service cost component of net benefit costs is eligible for capitalization.interim periods within those fiscal years. The Company adopted the amendments of ASU No. 2017-07 effective January 1, 2018.2021 using the prospective approach. The adoption of ASU No. 2017-07 did not have a material impact on the Company's results of operations, statements of cash flows, andor statement of financial position.
ASU 2016-01 -2021-10 In January 2016,November 2021, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10)2021-10, Government Assistance (Topic 832):RecognitionDisclosures by Business Entities about Government Assistance, which requires additional disclosures for transactions with a government accounted for by applying a grant or contribution model by analogy, including: (i) the nature of the transactions and Measurementthe related accounting policy used to account for the transactions; (ii) the line items on the balance sheet and income statement that are affected by the transactions, and the amounts applicable to each financial statement line item; and (iii) significant terms and conditions of Financial Assetsthe transactions, including commitments and Financial Liabilities, or ASU No. 2016-01.contingencies. The amendments of ASU No. 2016-01 eliminate available-for-sale classification of equity investments and require that equity investments (except those accounted for underwere applied prospectively to all transactions within the equity method of accounting, or those that result in consolidationscope of the investee) be generally measured at fair value with changes in fair value recognized in net income. Further, the amendments require that financial assets and financial liabilities be presented separately in the notes to the financial statements, grouped by measurement category and form of financial asset. The guidance in ASU No. 2016-01 is effective for financial statements issued for fiscal years beginning after December 15, 2017, and interim periods within those annual periods. The Company adopted the amendments of ASU No. 2016-01 effective January 1, 2018. In connection with the adoptionamendments. Early application of the new standard the Company has applied the guidance on a modified retrospective basis, which resulted in no material adjustments recorded to the consolidated results of operations, cash flows, and statement of financial position.
ASU 2014-09 — In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or Topic 606, which was further amended through various updates issued by the FASB thereafter. The amendments of Topic 606 completed the joint effort between the FASBis permitted and the IASB, to develop a common revenueeffect of the new standard for GAAP and IFRS, and to improveonly impacted the Company’s financial reporting. The guidance under Topic 606 provides that an entity should recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for the goods or services provided and establishes a five-step model to be applied by an entity in evaluating its contracts with customers. The Company has also elected the practical expedient available under Topic 606 for measuring progress toward complete satisfaction of a performance obligation and for disclosure requirements of remaining performance obligations. The practical expedient allows an entity to recognize revenue in the amount to which the entity has the right to invoice such that the entity has a right to the consideration in an amount that corresponds directly with the value to the customer for performance completed to date by the entity. The Company adopted the standard effective January 1, 2018. The adoption of Topic 606 at the date of initial application, as prescribed under the modified retrospective transition method, did not have a material impact on the Company's financial statements. The adoption of Topic 606 also includes additional disclosure requirements beginning in the first quarter of 2018. Many of these disclosures are not substantially different than the Company's existingstatement disclosures. Topic 606 requires disclosure of disaggregated revenue amounts, which the Company has been disclosing since the date of adoption.
Recent Accounting Developments - Guidance Not Yet Adopted
ASU 2018-17 -2020-06 In October 2018,August 2020, the FASB issued ASU No. 2018-17, Consolidations (Topic 810): Targeted Improvements to Related Party Guidance2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40), or ASU 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for Variable Interest Entities, in response to stakeholders’ observations that Topic 810, Consolidations, could be improved thereby improving general purpose financial reporting. Specifically, ASC 2018-17 requires applicationconvertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 using the modified retrospective approach. As a result of the variable interestprovisions of the amended guidance, the Company estimates a $100 million decrease to additional paid-in capital, a $57 million decrease to debt discount, a $57 million increase to retained earnings, and a $14 million decrease to long-term deferred tax liabilities. The Company does not expect the adoptions of ASU 2020-06 to have a material impact on its statement of operations, statements of cash flows or earnings per share amounts.
ASU 2021-08 — In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, or ASU 2021-08. Under current GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers and other similar contracts that are accounted for in accordance with ASC 606, Revenue from Contracts with Customers, or ASC 606, at fair value on the acquisition date. ASU 2021-08 requires that an entity (VIE) guidance to private companies under common controlrecognize and consideration of indirect interest held throughmeasure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606. At the acquisition date, an acquirer should account for the related parties under common controlrevenue contracts in accordance with ASC 606 as if it had originated the contracts, which should generally result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements. This update also provides certain practical expedients for determining whether fees paid to decision makersacquirers when recognizing and service providers are variable interests.measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments in this update are effective for fiscal years beginning after December 15, 2019, and2022, including interim periods within those fiscal years. All entities are requiredyears and should be applied prospectively to applybusiness combinations occurring on or after the amendments retrospectively with a cumulative-effect adjustmenteffective date of the amendments. Early adoption is permitted, including adoption in an interim period. Adoption during an interim period requires retrospective application to retained earnings atall business combinations for which the acquisition date occurs on or after the beginning of the earliestfiscal year that includes the interim period presented.of early application and prospectively to all business combinations that occur on or after the date of initial application. The Company is evaluatingdoes not expect the impactadoption of adopting this guidanceASU 2021-08 to have a material impact on the consolidated financial statements and disclosures.


ASU 2018-13 - In August 2018,

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Note 3Revenue Recognition
The Company's policies with respect to its various revenue streams are detailed below. The Company generally applies the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changesinvoicing practical expedient to recognize revenue for the revenue streams detailed below, except in circumstances where the invoiced amount does not represent the value transferred to the Disclosure Requirementcustomer.
Retail Revenue
Gross revenues for Fair value Measurement),energy sales and services to retail customers are recognized as the Company transfers the promised goods and services to the customer. For the majority of its electricity and natural gas contracts, the Company’s performance obligation with the customer is satisfied over time and performance obligations for its electricity and natural gas products are recognized as the customer takes possession of the product. The Company also allocates the contract consideration to distinct performance obligations in a contract for which the timing of the revenue recognized is different. Additionally, customer discounts and incentives reduce the contract consideration and are recognized over the term of the contract.
Energy sales and services that have been delivered but not billed by period end are estimated. Accrued unbilled revenues are based on estimates of customer usage since the date of the last meter reading provided by the independent system operators, utilities, or ASU No. 2018-13. The guidance in ASU No. 2018-13 eliminates such disclosures aselectric distribution companies. Volume estimates are based on daily forecasted volumes and estimated customer usage by class. Unbilled revenues are calculated by multiplying these volume estimates by the applicable rate by customer class. Estimated amounts are adjusted when actual usage is known and billed.
As contracts for retail electricity and natural gas can be for multi-year periods, the Company has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other contract-specific factors. For the fixed price contracts, the amount of any unsatisfied performance obligations will vary based on customer usage, which will depend on factors such as weather and reasons for transfers between Level 1customer activity and Level 2therefore it is not practicable to estimate such amounts.
Energy Revenue
Both physical and financial transactions consist of revenues billed to a third party at either market or negotiated contract terms to optimize the financial performance of the fairCompany's generating facilities. Electric energy revenue is recognized upon transmission to the customer over time, using the output method for measuring progress of satisfaction of performance obligations. Physical transactions, or the sale of generated electricity to meet supply and demand, are recorded on a gross basis in the Company's consolidated statements of operations. The Company applies the invoicing practical expedient in recognizing energy revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value hierarchy. to the customer of NRG’s performance obligation completed to date. Financial transactions used to hedge the sale of electricity are recorded net within operating revenues in the consolidated statements of operations in accordance with ASC 815.
Ancillary revenues, included in Other revenue, are recognized over time as the obligation is fulfilled, using the output method for measuring progress of satisfaction of performance obligations.
CapacityRevenue
The amendmentsCompany's largest sources of capacity revenues are capacity auctions in ASU No. 2018-13 add new disclosure requirementsPJM, ISO-NE and NYISO. Capacity revenues also include revenues billed to a third party at either market or negotiated contract terms for Level 3 measurements. ASU No. 2018-13making installed generation and demand response capacity available in order to satisfy system integrity and reliability requirements. Capacity revenues are recognized over time, using the output method for measuring progress of satisfaction of performance obligations. The Company applies the invoicing practical expedient in recognizing capacity revenue. Under the practical expedient, revenue is effectiverecognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date.
Performance Obligations
As of December 31, 2021, estimated future fixed fee performance obligations are $258 million, $48 million and $1 million for fiscal years beginning after2022, 2023 and 2024, respectively. These performance obligations are for cleared auction MWs in the PJM, ISO-NE, NYISO and MISO capacity auctions and are subject to penalties for non-performance.
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Disaggregated Revenue
The following tables represent the Company’s disaggregation of revenue from contracts with customers for the years ended December 15, 2019,31, 2021, 2020 and interim periods within those fiscal years, with early adoption permitted for any eliminated or modified disclosures. Certain disclosures in ASU No. 2018-13 are required to be2019:

For the Year Ended December 31, 2021
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,665 $1,959 $2,053 $(1)$9,676 
Business2,745 9,903 1,237 — 13,885 
Total retail revenue8,410 11,862 3,290 (1)23,561 
Energy revenue(c)
329 508 371 1,215 
Capacity revenue(c)
— 718 57 — 775 
Mark-to-market for economic hedging activities(d)
(3)(88)(86)13 (164)
Contract amortization— (26)(4)— (30)
Other revenue(b)(c)
1,557 59 25 (9)1,632 
Total operating revenue10,293 13,033 3,653 10 26,989 
Less: Lease revenue— — 
Less: Realized and unrealized ASC 815 revenue130 184 (96)16 234 
Less: Contract amortization— (26)(4)— (30)
Total revenue from contracts with customers$10,163 $12,874 $3,746 $(6)$26,777 
(a) Home includes Services
(b) Other Revenue in Texas includes ancillary revenues of $1.3 billion driven by high pricing during Winter Storm Uri
(c) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $131 $$$136 
Capacity revenue— 149 — — 149 
Other revenue133 (8)(12)— 113 
(d) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
applied on a retrospective basis and others on a prospective basis. As
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For the Year Ended December 31, 2020
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,210 $96 $(2)$6,331 
Business1,034 95 — — 1,129 
Total retail revenue6,061 1,305 96 (2)7,460 
Energy revenue(b)
24 183 333 (1)539 
Capacity revenue(b)
— 620 61 (1)680 
Mark-to-market for economic hedging activities(c)
88 (3)95 
Other revenue(b)
222 62 43 (8)319 
Total operating revenue6,309 2,258 530 (4)9,093 
Less: Lease revenue— 17 — 18 
Less: Realized and unrealized ASC 815 revenue30 314 38 385 
Total revenue from contracts with customers$6,279 $1,943 $475 $(7)$8,690 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $67 $43 $(5)$105 
Capacity revenue— 156 — — 156 
Other revenue28 (2)— 29 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
For the Year Ended December 31, 2019
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,173 $57 $(3)$6,254 
Business1,205 74 — — 1,279 
Total retail revenue6,232 1,247 57 (3)7,533 
Energy revenue(b)
529 322 318 — 1,169 
Capacity revenue(b)
— 664 36 — 700 
Mark-to-market for economic hedging activities(c)
47 (29)16 (1)33 
Other revenue(b)
261 58 70 (3)386 
Total operating revenue7,069 2,262 497 (7)9,821 
Less: Lease revenue— 19 — 20 
Less: Realized and unrealized ASC 815 revenue1,562 183 67 (2)1,810 
Total revenue from contracts with customers$5,507 $2,078 $411 $(5)$7,991 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$1,459 $98 $39 $(1)$1,595 
Capacity revenue— 109 — — 109 
Other revenue56 12 — 73 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

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ContractBalances
The following table reflects the amendment contemplates changes in disclosures only, it will have no material impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2016-02 - In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), or Topic 842, with the objective to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and to improve financial reporting by expanding the related disclosures. The guidance in Topic 842 provides that a lessee that may have previously accounted for a lease as an operating lease under current GAAP should recognize thecontract assets and liabilities included in the Company's balance sheet as of December 31, 2021 and 2020:
(In millions)December 31, 2021December 31, 2020
Deferred customer acquisition costs$133 $113 
Accounts receivable, net - Contracts with customers3,057 866 
Accounts receivable, net - Derivative instruments182 33 
Accounts receivable, net - Affiliate
Total accounts receivable, net$3,245 $904 
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)$1,574 $393 
Deferred revenues (a)
$227 $60 
(a) Deferred revenues from contracts with customers for the years ended December 31, 2021 and 2020 were approximately $224 million and $31 million, respectively
The revenue recognized from contracts with customers during the years ended December 31, 2021 and 2020 relating to the deferred revenue balance at the beginning of each period was $23 million and $13 million, respectively. The change in deferred revenue balances during the years ended December 31, 2021 and 2020 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.
The Company's customer acquisition costs consist of broker fees, commission payments and other costs that arise from a lease onrepresent incremental costs of obtaining the balance sheet. In addition, Topic 842 expandscontract with customers for which the required quantitative and qualitative disclosures with regardsCompany expects to lease arrangements.recover. The Company adoptedamortizes these amounts over the standard and its subsequent corresponding updates effective January 1, 2019 under the modified retrospective approach by applying the provisionsestimated life of the new leases guidance atcustomer contract. As a practical expedient, the effective date without adjustingCompany expenses the comparative periods presented. The Company has assessed its leasing arrangements and evaluatedincremental costs of obtaining a contract if the impact of applying practical expedients and accounting policy elections. The Company implemented lease accounting software to meet the reporting requirementsamortization period of the standard and identified changesasset would have been one year or less.
When the Company receives consideration from the customer that is in excess of the amount due, such consideration is reclassified to deferred revenue, which represents a contract liability. Generally, the Company will recognize revenue from contract liabilities in the next period as the Company satisfies its business processes and controls to support recognition and disclosure under the new standard. Management estimates operating lease liabilities will increase between $380 million and $420 million and right-of-use assets between $300 million and $340 million will be established upon adoption, before considering deferred taxes. Management does not believe the adoption of Topic 842 will have a material impact on the statements of operations or cash flows.performance obligations.



Note 34 —Acquisitions, Discontinued Operations and Dispositions
Acquisitions
XOOMDirect Energy Acquisition
On January 5, 2021 (the "Acquisition Closing Date"), the Company acquired all of the issued and outstanding common shares of Direct Energy, which had been a North American subsidiary of Centrica plc. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increased NRG's retail portfolio by over 3 million customers and strengthens its integrated model. It also broadens the Company's presence in the Northeast and into states and locales where it did not previously operate, supporting NRG's objective to diversify its business.
The Company paid an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment of $77 million. The Company funded the purchase price using a combination of $715 million of cash on hand, $166 million from a draw on its Revolving Credit Facility (of which $107 million was used to fund acquisition costs and financing fees that are not included in the aggregate purchase price above) as well as approximately $2.9 billion in secured and unsecured corporate debt issued in December 2020. The final purchase price adjustment resulted in additional payment of $22 million, which was paid in December 2021.
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The Company also increased its collective collateral facilities by $3.4 billion as of the Acquisition Closing Date to meet the additional liquidity requirements related to the acquisition, as detailed in the following table:
(In millions)
Available on Acquisition Closing Date
Revolving Credit Facility commitment increase$802 
Revolving Credit Facility new tranche273
Facility agreement in connection with the sale of pre-capitalized trust securities874
Available as of December 31, 2020
Credit default swap facility150
Revolving accounts receivable financing facility750
Repurchase facility75
Bilateral letter of credit facilities475
Total Increases to Liquidity and Collateral Facilities$3,399 
For further discussion see Note 13, Long-term Debt and Finance Leases.
Acquisition costs of $25 million and $17 million for the years ended December 31, 2021 and 2020, respectively, are included in acquisition-related transaction and integration costs in the Company's consolidated statement of operations.
The acquisition has been recorded as a business combination under ASC 805 with identifiable assets acquired and liabilities assumed recorded at their estimated fair values on the acquisition date. The purchase price is allocated as follows:
(In millions)
Current Assets
Cash and cash equivalents$152 
Funds deposited by counterparties21 
Restricted cash
Accounts receivable, net1,802 
Inventory106 
Derivative instruments1,014 
Cash collateral paid in support of energy risk management activities233 
Prepayments and other current assets173 
Total current assets3,510 
Property, plant and equipment, net151 
Other Assets
Goodwill(a)
1,250 
Intangible assets, net:
    Customer relationships(b)
1,277 
    Customer and supply contracts(b)
610 
    Trade names(b)
310 
    Renewable energy credits124 
Total intangible assets, net2,321 
Derivative instruments531 
Other non-current assets31 
Total other assets4,133 
Total Assets$7,794 
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(In millions)
Current Liabilities
Accounts payable$1,116 
Derivative instruments1,266 
Cash collateral received in support of energy risk management activities21 
Accrued expenses and other current liabilities670 
Total current liabilities3,073 
Other Liabilities
Derivative instruments562 
Deferred income taxes320 
Other non-current liabilities115 
Total other liabilities997 
Total Liabilities$4,070 
Direct Energy Purchase Price$3,724 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Direct Energy with NRG's existing businesses. Goodwill was allocated to the Texas, East, and West/Services/Other segments of $427 million, $648 million , and $175 million, respectively. Goodwill expected to be deductible for tax purposes is $322 million
(b)The weighted average amortization period for total amortizable intangible assets is 12 years

Measurement Period Adjustments
The following measurement period adjustments were recognized during the quarter ended December 31, 2021:
(In millions)
Assets
Prepayments and other current assets$(10)
Goodwill(7)
    Total decrease in assets$(17)
Liabilities
Accounts payable$(4)
Accrued expenses and other current liabilities(20)
Deferred income taxes(18)
   Total decrease in liabilities$(42)
Net measurement period adjustments$25 
The measurement period adjustments are attributable primarily to refinement of the underlying assumptions used to estimate the fair value of assets acquired and liabilities assumed as more information was obtained about facts and circumstances that existed as of the Acquisition Closing Date.
Fair Value Measurement of Intangible Assets
The fair values of intangible assets as of the Acquisition Closing Date were measured primarily based on significant inputs that are observable and unobservable in the market and thus represent Level 2 and Level 3 measurements, respectively. Significant inputs were as follows:
Customer relationships Customer relationships, reflective of Direct Energy’s customer base, were valued using an excess earning method of the income approach. Under this approach, the Company estimated the present value of expected future cash flows resulting from existing customer relationships, considering attrition and charges for contributory assets (such as net working capital, fixed assets, workforce and trade names) utilized in the business, discounted at an independent power producer peer group’s weighted average cost of capital. The customer relationships are amortized to depreciation and amortization, ratably based on discounted future cash flows. The weighted average amortization period is 12 years.
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Customer and supply contracts The fair value of in-market and out-of-market customer and supply contracts were estimated based on contractual terms compared to market prices as of the Acquisition Closing Date. The majority of the contracts were valued using prices provided by external sources, primarily price quotations available through broker or over-the-counter and online exchanges. For contracts for which external sources or observable market quotes were not available, these values were based on valuation techniques including, but not limited to, internal models based on fundamental analysis of the market and extrapolation of the observable market data with similar characteristics. In addition, the Company applied a credit reserve to reflect credit risk, which is calculated based on published default probabilities. The customer and supply contracts are amortized to revenue and cost of operations, respectively, based upon the fair market value, as of the acquisition date, for each delivery month. The weighted average amortization period is 14 years.
Trade names Trade names were valued using a "relief from royalty" method of the income approach. Under this approach, the fair value is estimated to be the present value of royalties saved because NRG owns the intangible asset and therefore does not have to pay a royalty for its use. The trade names are amortized to depreciation and amortization, on a straight line basis, over a weighted average amortization period of 15 years.
Renewable energy credits Renewable energy credits were valued based on the market prices as of the Acquisition Closing Date. Renewable energy credits are retired, as required, for the applicable compliance period. They are expensed to cost of operations based on customer usage.
Fair Value Measurement of Derivative Assets and Liabilities
The fair values of derivatives assets and liabilities as of the Acquisition Closing Date were as follows:
Fair Value
(In millions)TotalLevel 1Level 2Level 3
Derivatives assets$1,545 $155 $1,272 $118 
Derivatives liabilities1,828 207 1,489 132 
Refer to Note 5, Fair Value of Financial Instruments for discussion on derivative fair value measurements.
Supplemental Information
For the Year Ended December 31, 2021 Direct Energy contributed revenue and income before income taxes of $15.6 billion and $2.4 billion, respectively.
Supplemental Unaudited Pro Forma Financial Information
The following table provides unaudited pro forma combined financial information of NRG and Direct Energy, after giving effect to the Direct Energy acquisition and related financing transactions as if they had occurred on January 1, 2019. The pro forma financial information has been prepared for illustrative and informational purposes only, and is not intended to project future operating results or indicative of what our financial performance would have been had the transactions occurred on the date assumed. No effect has been given to operating synergies.
For the Year Ended December 31,
(In millions)202120202019
Total operating revenues$26,987 $21,326 $23,673 
Income from continuing operations2,225 471 3,623 

Amounts above reflect certain pro forma adjustments that were directly attributable to the Direct Energy acquisition. These adjustments include the following:
(i) Income statement effects of fair value adjustments based on the purchase price allocation including amortization of intangible assets, depreciation of property, plant and equipment and lease expense.
(ii) Interest expense assumes the financing transactions directly attributable to the Direct Energy acquisition occurred on January 1, 2019.
(iii) Removal of Direct Energy historical interest expense associated with related party notes receivable/payable between Direct Energy and Centrica and its subsidiaries, as those notes are assumed to be repaid as of January 1, 2019.
(iv) Elimination of transactions between NRG and Direct Energy.
(v) Adjustments to reflect all acquisition costs occurring during the year ended December 31, 2019.
107


(vi) Tax effects of pro forma adjustments on all periods presented and shifting the recognition of one time tax benefits resulting from the acquisition from the year ended December 31, 2021 to the year ended December 31, 2019.
Midwest Generation Lease PurchaseOn September 29, 2020, Midwest Generation acquired all of the ownership interests in the Powerton facility and Units 7 and 8 of the Joliet facility, which were being leased through 2034 and 2030, respectively, for approximately $260 million. The purchase was funded with cash-on-hand. Upon closing, lease expense related to these facilities, which totaled approximately $14 million in 2019, and the operating lease liability of $148 million were eliminated.
Stream Energy Acquisition — On JuneAugust 1, 2018,2019, the Company completed the acquisition of XOOM Energy, LLC, anStream Energy's retail electricity and natural gas retailerbusiness operating in 199 states and Washington, D.C. for $329 million, including working capital and Canada, forother adjustments of approximately $213 million in cash.$29 million. The acquisition increased NRG's retail portfolio by approximately 300,000600,000 RCEs or 450,000 customers.
The purchase price was allocated as follows:
(In millions)
Account receivable$98 
Accounts payable(73)
Other net current and non-current working capital
Marketing partnership154 
Customer relationships85 
Trade name28 
Other intangible assets26 
Goodwill (a)
 Stream Purchase Price$329 
 (In millions)
Net current and non-current working capital$46
Other intangible assets133
Goodwill34
XOOM Purchase Price$213
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Stream Energy with NRG's existing businesses. Goodwill of $5 million and $1 million was assigned to the Texas and East segments, respectively, and is not deductible for tax purposes
Small Book Acquisitions — Through the endDispositions
Sale of 4,850 MW of Fossil generating assets
On December 2018,1, 2021, the Company closed the previously announced sale of approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. Proceeds of $760 million were reduced by working capital and other adjustments of $137 million, resulting in net proceeds of $623 million. The Company recorded a gain of $210 million from the sale, which includes the $39 million indemnification liability recorded as discussed below. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
As part of the agreement to sell the fossil generating assets, NRG has agreed to acquire several booksindemnify Generation Bridge for certain future environmental compliance costs up to $39 million. The indemnity term will expire on December 1, 2028. The Company has recorded the liability within accrued expenses and other current liabilities and other non-current liabilities.
Sale of customers totaling approximately 115,000 customers, alongAgua Caliente
On February 3, 2021, the Company closed on the sale of its 35% ownership in the Agua Caliente solar project to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including cash disposed of $7 million.
Sale of Home Solar
In the third quarter of 2020, the Company concluded its Home Solar business was held for sale and recorded an impairment loss of $29 million, as further discussed in Note 11, Asset Impairments. On November 13, 2020, the Company completed the sale of the Home Solar business for cash proceeds of $66 million, resulting in a $2 million loss on the sale. In connection with brand names,the sale, the Company extinguished debt of $27 million and recognized a $5 million loss on the extinguishment.
Company completed other asset sales for $44cash proceeds of $12 million and $15 million during the majority of which was allocated to acquired intangibles.years ended December 31, 2021 and 2020, respectively.
108


Discontinued Operations
Sale of South Central Portfolio
On February 4, 2019, the Company completed the sale of its South Central Portfolio to Cleco.Cleco for cash consideration of $1 billion excluding working capital and other adjustments. The Company concluded that the divested business met the criteria for discontinued operations, as the disposition representsrepresented a strategic shift in the business in which NRG operates and held-for-sale criteria as of December 31, 2018. As such, all prior period results for the operations of the South Central Portfolio have been reclassified as discontinued operations.operates. In connection with the transaction, NRG also entered into a transition services agreement to provide certain corporate services to the divested business.business, which have been substantially completed in 2020.
The South Central Portfolio includes the 1,2631,177 MW Cottonwood natural gas generating facility. Upon the closing of the sale of the South Central Portfolio, NRG entered into a lease agreement with Cleco to leaseback the Cottonwood facility through 2025. Due to its continuing involvement with the Cottonwood facility, NRG willdid not use held-for-sale or discontinued operations treatment in accounting for historical and ongoing activity with Cottonwood.

the Cottonwood facility.
Summarized results of South Central discontinued operations for the year ended December 31, 2019 were as follows:
  Year Ended December 31,
(In millions) 2018 2017 2016
Operating revenues $410
 $422
 $467
Operating costs and expenses (346) (335) (395)
Other income 2
 
 
Gain from discontinued operations, net of tax $66
 $87
 $72
The following table summarizes the major classes of assets and liabilities classified as discontinued operations of South Central as follows:
(In millions)December 31, 2018 December 31, 2017
Cash and cash equivalents$89
 $(3)
Accounts receivable, net49
 61
Inventory35
 33
Other current assets5
 
Current assets - discontinued operations178
 91
Property, plant and equipment, net408
 461
Other non-current assets1
 1
Non-current assets - discontinued operations409
 462
Accounts payable19
 28
Other current liabilities5
 6
Current liabilities - discontinued operations24
 34
Out-of-market contracts, net50
 66
Other non-current liabilities11
 10
Non-current liabilities - discontinued operations$61
 $76
(In millions)
Operating revenues$31 
Operating costs and expenses(23)
Gain from operations of discontinued components8
Gain on disposal of discontinued operations, net of tax20 
Gain from discontinued operations, including disposal, net of tax$28
Sale of Ownership in NRG Yield, Inc. and its Renewables Platform
On August 31, 2018, the Company completed the sale of its ownership interests in NRG Yield, Inc. and its Renewables Platform to GIP for total cash consideration of $1.348 billion. The Company concluded that the divested businesses met the criteria for discontinued operations, as the dispositions represented a strategic shift in the business in which NRG operates. As such, all prior period results for the transaction have been reclassified as discontinued operations. In connection with the transaction, NRG entered into a transition services agreement to provide certain corporate services to the divested businesses.
As a resultbusinesses in 2018, which concluded in 2020. During the year ended December 31, 2019, the Company recorded an adjustment to reduce the purchase price by $15 million in connection with the completion of the sale of NRG Yield, Inc.,Patriot Wind project. During the Company's indirect ownership interest in the Agua Caliente solar project was reduced from 51% to 35%. As such,year ended December 31, 2019, the Company no longer controlsreduced the project; and accordingly, no longer consolidatesliability related to the project for financial reporting purposes. The Company recorded its ownership interest as an equity method investment upon deconsolidation resulting in a gainindemnification of $8 million.
As part of the agreement to sell NRG Yield and the Renewables Platform, the Company agreed to indemnify NRG Yield for any increase in property taxes for certain solar properties. The indemnity term will expire at various dates between 2029 and 2039. NRG has determined that the payment of this indemnity is probable and has recorded the estimated present value of the obligation as of the closing date of the transaction of $153properties by $22 million due to other non-current liabilities with a corresponding loss from discontinued operations. In addition to the California property tax indemnity, there were additional commitments and advisory fees totaling approximately $50 million. The Company will also retain all costs associated with the development and ownership of the Patriot Wind project until its sale to a third party pursuant to a sale agreement.

updated estimates.
Carlsbad
On February 6, 2018, NRG entered into an agreement with NRG Yield and GIP to sell 100% of theits membership interests in Carlsbad Energy Holdings LLC, which ownedowns the Carlsbad project, for $387$385 million of cash consideration, excluding working capital adjustments. The primary condition to close the Carlsbad transaction was the completion of the sale of NRG Yield and the Renewables Platform.AsAt the time of the sale of NRG Yield and the Renewables Platform has closed,in August 2018, the Company concluded that the Carlsbad project met the criteria for discontinued operations and accordingly, the financial information for all current and historical periods has been recast to reflectprior period results for Carlsbad were reclassified as a discontinued operation.operations. The Company continued to consolidate Carlsbad for financial reporting purposes until the transaction closed on February 27, 2019. Carlsbad will continue to have a ground lease and easement agreement with NRG. The agreement hasNRG with an initial term ending in 2039 with two and 2 ten year-year extensions. As a result of the transaction, additional commitments related to the project totaled $23 million.million as of December 31, 2021 and December 31, 2020.
Summarized results of NRG Yield, Inc. and Renewables Platform and Carlsbad discontinued operations for the year ended December 31, 2019 were as follows:
(In millions)
Operating revenues$19 
Operating costs and expenses(9)
Other expenses(5)
Gain/(loss) from discontinued operations, net of tax5
Gain/(loss) on disposal of discontinued operations, net of tax265 
Income/(expense) from California property tax indemnification22 
Income/(expense) from other commitments, indemnification and fees
Income/(loss) on disposal of discontinued operations, net of tax291
Income/(loss) from discontinued operations, net of tax$296
109
  Year Ended December 31,
(In millions) 2018 2017 2016
Operating revenues $909
 $1,164
 $1,165
Operating costs and expenses (661) (1,114) (1,023)
Other expenses (174) (288) (261)
Gain/(loss) from operations of discontinued components, before tax 74
 (238) (119)
Income tax expense/(benefit) 4
 52
 (20)
Gain/(loss) from discontinued operations, net of tax 70
 (290) (99)
Loss on deconsolidation, net of tax (134) 
 
California property tax indemnification (153) 
 
Other Commitments, Indemnification and Fees (75) 
 
Loss on disposal of discontinued operations, net of tax (362) 
 
Loss from discontinued operations, net of tax $(292) $(290) $(99)
       


The following table summarizes the major classes of assets and liabilities classified as discontinued operations as follows:


(In millions)
December 31, 2018 (a)
 
December 31, 2017 (b)
Cash and cash equivalents$
 $224
Restricted Cash4
 229
Accounts receivable, net10
 119
Other current assets5
 81
Current assets - discontinued operations19
 653
Property, plant and equipment, net590
 7,473
Equity investments in affiliates
 856
Intangible assets, net9
 1,240
Other non-current assets4
 475
Non-current assets - discontinued operations603
 10,044
Current portion of long term debt and capital leases20
 484
Accounts payable27
 169
Other current liabilities1
 159
Current liabilities - discontinued operations48
 812
Long-term debt and capital leases572
 6,536
Other non-current liabilities2
 186
Non-current liabilities - discontinued operations$574
 $6,722
(a) Represents the Carlsbad project
(b) Represents the discontinued operations of NRG Yield, NRG's Renewable Platform and the Carlsbad project

Sale of Assets to NRG Yield, Inc. Prior to Discontinued Operations
On June 19, 2018, the Company completed the UPMC Thermal Project and received cash consideration from NRG Yield of $84 million plus an additional $3 million received at final completion in January 2019.
On March 30, 2018, as part of the Transformation Plan, the Company sold to NRG Yield, Inc. 100% of NRG's interests in Buckthorn Renewables, LLC, which owns a 154 MW construction-stage utility-scale solar generation project, located in Texas. NRG Yield, Inc. paid cash consideration of approximately $42 million, excluding working capital adjustments, and assumed non-recourse debt of approximately $183 million.
On March 27, 2017, the Company sold to NRG Yield, Inc.: (i) a 16% interest in the Agua Caliente solar project, representing ownership of approximately 46 net MW of capacity and (ii) NRG's interests in seven utility-scale solar projects located in Utah representing 265 net MW of capacity, which have reached commercial operations. NRG Yield, Inc. paid cash consideration of $130 million, plus $1 million in working capital adjustments, and assumed non-recourse debt of approximately $328 million.
On September 1, 2016, the Company completed the sale of its remaining 51.05% interest in the CVSR project to NRG Yield, Inc. for total cash consideration of $78.5 million, plus an immaterial working capital adjustment. In addition, NRG Yield, Inc. assumed non-recourse project level debt of $496 million.
GenOn
On June 14, 2017, the GenOn Entities filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the Texas Bankruptcy Court. As a result of the bankruptcy filings, NRG concluded that it no longer controlled GenOn as it was subject to the control of the Texas Bankruptcy Court; and accordingly, NRG deconsolidated GenOn and its subsidiaries for financial reporting purposes as of such date.
By eliminating a large portion of its operations in For the PJM market with the deconsolidation of GenOn,Year Ended December 31, 2019 NRG concluded that GenOn met the criteria forrecorded $3 million loss from discontinued operations, as this represented a strategic shift in the business in which NRG operated. As such, all prior period resultsnet of tax for GenOn have been reclassified as discontinuedresults of operations.


Summarized results of discontinued operations were as follows:
  Year Ended December 31,
(In millions) 2018 2017 2016
Operating revenues $
 $646
 $1,862
Operating costs and expenses 
 (702) (1,896)
Gain on sale of assets 
 
 294
Other expenses 
 (98) (168)
(Loss)/gain from operations of discontinued components, before tax 
 (154) 92
Income tax expense 
 9
 11
(Loss)/gain from discontinued operations 
 (163) 81
Interest income - affiliate 3
 8
 11
Income/(loss) from discontinued operations, net of tax 3
 (155) 92
Pre-tax loss on deconsolidation 
 (208) 
Settlement consideration, insurance and services credit 63
 (289) 
Pension and post-retirement liability assumption 21
 (131) 
Other (53) (6) 
Income/(loss) on disposal of discontinued operations, net of tax 31
 (634) 
Income/(loss) from discontinued operations, net of tax $34
 $(789) $92
       
GenOn Settlement and Plan Confirmation
Effective July 16, 2018, NRG and GenOn consummated the GenOn Settlement whereby the Company paid GenOn approximately $125 million, which included (i) the settlement consideration of $261 million, (ii) the transition services credit of $28 million and (iii) the return of $15 million of collateral posted to NRG; offset by the (i) $151 million in borrowings under the intercompany secured revolving credit facility, (ii) related accrued interest and fees of $12 million, (iii) remaining payments due under the transition services agreement of $10 million, (iv) $4 million reduction of the settlement payment related to NRG assigning to GenOn approximately $8 million of historical claims against REMA and (v) certain other balances due to NRG totaling $2 million.
GenOn's plan of reorganization was confirmed on December 14, 2018. Pursuant to the confirmed plan, NRG retained the pension liability for GenOn employees for service provided prior to the completion of the reorganization. NRG also retained the liability for GenOn's post-employment and retiree health and welfare benefits. These liabilities were recorded within other non-current liabilities as of December 31, 2018 and 2017. As a result of GenOn's emergence from bankruptcy, NRG is taking a deduction for GenOn tax losses of $9.5 billion, including a worthless stock deduction.
Other than those obligations which survive or are independent of the releases described herein, the GenOn Settlement and the GenOn Chapter 11 plan provide NRG releases from GenOn and each of its debtor and non-debtor subsidiaries.
REMA Plan of Reorganization
On October 16, 2018, REMA and its subsidiaries filed voluntary petitions for chapter 11 relief and a prepackaged plan of reorganization in the United States Bankruptcy Court for the Southern District of Texas. The REMA debtors' plan of reorganization has been formally accepted by REMA's voting creditors and is consistent with the releases NRG received under the GenOn Settlement and the GenOn plan.

GenMA Settlement
The Bankruptcy Court order confirming the plan of reorganization also approved the settlement terms agreed to among the GenOn Entities, NRG, the Consenting Holders, GenOn Mid-Atlantic, and certain of GenOn Mid-Atlantic’s stakeholders, or the GenMA Settlement, and directed the settlement parties to cooperate in good faith to negotiate definitive documentation consistent with the GenMA Settlement term sheet in order to pursue consummation of the GenMA Settlement. The definitive documentation effectuating the GenMA Settlement was finalized and effective as of April 27, 2018. Certain terms of the compromise with respect to NRG and GenOn Mid-Atlantic are as follows:
Settlement of all pending litigation and objections to the Plan (including with respect to releases and feasibility);
NRG provided $38 million in letters of credit as new qualifying credit support to GenOn Mid-Atlantic; and
NRG paid approximately $6 million as reimbursement of professional fees incurred by certain of GenOn Mid-Atlantic's stakeholders in connection with the GenMA Settlement.
Planned Dispositions
On November 1, 2018, the Company offered to Clearway Energy, Inc. its ownership interest in Agua Caliente Borrower 1, LLC, for approximately $120 million, which owns a 35% interest in Agua Caliente, a 290 MW utility-scale solar project located in Dateland, Arizona. The offer expired on January 31, 2019, with no action taken by Clearway Energy, Inc. As a result, the right of first offer agreement with Clearway Energy, Inc. has expired and NRG's interest in Agua Caliente is no longer subject to a right of first offer thereunder.
Dispositions
On August 1, 2018, the Company completed the sale of 100% of its ownership interests in BETM to Diamond Energy Trading and Marketing, LLC for $71 million, net of working capital adjustments, which resulted in a gain of $15 million on the sale. The sale also resulted in the release and return of approximately $119 million of letters of credit, $32 million of parent guarantees, and $4 million of net cash collateral to NRG.
On June 29, 2018, the Company completed the sale of Canal 3 to Stonepeak Kestrel for cash proceeds of approximately $16 million and recorded a gain of $17 million. Prior to the sale, Canal 3 entered into a financing arrangement and received cash proceeds of $167 million, of which $151 million was distributed to the Company. The related debt was non-recourse to NRG and was transferred to Stonepeak Kestrel in connection with the sale of Canal 3.
In addition, the Company completed other asset sales for $28 million of cash proceeds during the year ended December 31, 2018.
2016 Dispositions
Disposition of Majority Interest in EVgo
On June 17, 2016, the Company completed the sale of a majority interest in its EVgo business to Vision Ridge Partners for total consideration of approximately $39 million, including $17 million in cash received, which is net of $3 million in working capital adjustments, $15 million contributed as capital to the EVgo business and $7 million of future contributions by Vision Ridge Partners, all of which were determined based on forecasted cash requirements to operate the business in future periods. In addition, the Company has future earnout potential of up to $70 million based on future profitability targets. NRG retained its original financial obligation of $103 million under its agreement with the CPUC whereby EVgo will build at least 200 public fast charging Freedom Station sites and perform the associated work to prepare 10,000 commercial and multi-family parking spaces for electric vehicle charging in California. As part of the sale, NRG has contracted with EVgo to continue to build the remaining required Freedom Stations and commercial and multi-family parking spaces for electric vehicle charging required under this obligation and EVgo will be directly reimbursed by NRG for the costs. As a result of the sale, the Company recorded a loss on sale of $78 million during the second quarter of 2016, which reflects the loss on the sale of the equity interest of $27 million and the accrual of NRG's remaining obligation under its agreement with the CPUC of $56 million, of which $6 million remains as of December 31, 2018. On February 22, 2017, the Company and CPUC entered into a second amendment to the agreement which extended the operating period commitment for the Freedom Stations to DecemberNote2020. The Company's remaining 23.7% interest in EVgo is accounted for as an equity method investment.

Rockford Disposition
On May 12, 2016, the Company entered into an agreement with RA Generation, LLC to sell 100% of its interests in the Rockford I and Rockford II generating stations, or Rockford, for cash consideration of $55 million, subject to adjustments for working capital and the results of the PJM 2019/2020 base residual auction. Rockford is a 450 MW natural gas facility located in Rockford, Illinois. The transaction triggered an indicator of impairment as the sales price was less than the carrying amount of the assets and, as a result, the assets were considered to be impaired. The Company measured the impairment loss as the difference between the carrying amount of the assets and the agreed-upon sales price. The Company recorded an impairment loss of $17 million during the quarter ended June 30, 2016 to reduce the carrying amount of the assets held for sale to the fair market value. On July 12, 2016, the Company completed the sale of Rockford for cash proceeds of $56 million, including $1 million in adjustments for the PJM base residual auction results. For further discussion on this impairment, refer to Note 9, Asset Impairments.

Note 4Fair Value of Financial Instruments
For cash and cash equivalents, funds deposited by counterparties, restricted cash, accounts and other receivables, accounts payable, restricted cash, and cash collateral postedpaid and received in support of energy risk management activities, the carrying amount approximates fair value because of the short-term maturity of those instruments and are classified as Level 1 within the fair value hierarchy.
The estimated carrying valuesvalue and fair valuesvalue of the Company's recorded financial instruments not carried at fair market value arelong-term debt, including current portion, is as follows:
 As of December 31,
 2018 2017
 Carrying Amount Fair Value Carrying Amount Fair Value
 (In millions)
Assets       
Notes receivable$17
 $14
 $2
 $2
Liabilities       
Long-term debt, including current portion (a)
$6,591
 $6,697
 $9,482
 $9,739
 As of December 31,
20212020
(In millions)Carrying AmountFair ValueCarrying AmountFair Value
Long-term debt, including current portion (a)
$8,040 $8,327 $8,781 $9,446 
(a) Excludes deferred financing costs, which are recorded as a reduction to long-term debt on the Company's consolidated balance sheets
The fair value of the Company's publicly-traded long-term debt is based on quoted market prices and is classified as Level 2 within the fair value hierarchy. The fair value of debt securities, non-publicly traded long-term debt, and certain notes receivable of the Company are based on expected future cash flows discounted at market interest rates or current interest rates for similar instruments with equivalent credit quality and are classified as Level 3 within the fair value hierarchy. The following table presents the level within the fair value hierarchy for long-term debt, including current portion as of December 31, 2018 and 2017:
 As of December 31, 2018 As of December 31, 2017
 Level 2 Level 3 Level 2 Level 3
 (In millions)
Long-term debt, including current portion$6,528
 $169
 $7,432
 $2,307

Fair Value Accounting under ASC 820
ASC 820 establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows:
Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access as of the measurement date. NRG's financial assets and liabilities utilizing Level 1 inputs include active exchange-traded securities, energy derivatives, and trust fund investments.
Level 2 — inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data. NRG's financial assets and liabilities utilizing Level 2 inputs include fixed income securities, exchange-based derivatives, and over the counter derivatives such as swaps, options and forward contracts.
Level 3 — unobservable inputs for the asset or liability only used when there is little, if any, market activity for the asset or liability at the measurement date. NRG's financial assets and liabilities utilizing Level 3 inputs include infrequently-traded, non-exchange-based derivatives and commingled investment funds, and are measured using present value pricing models.
In accordance with ASC 820, the Company determines the level in the fair value hierarchy within which each fair value measurement in its entirety falls, based on the lowest level input that is significant to the fair value measurement in its entirety.
110


Recurring Fair Value Measurements
Debt securities, equity securities, and trust fund investments, which are comprised of various U.S. debt and equity securities, and derivative assets and liabilities, are carried at fair market value.
The following tables present assets and liabilities measured and recorded at fair value on the Company's consolidated balance sheets on a recurring basis and their level within the fair value hierarchy:
 As of December 31, 2021
 Fair Value
(In millions)TotalLevel 1Level 2Level 3
Investments in securities (classified within other current and non-current assets)$32 $15 $17 $— 
Nuclear trust fund investments: 
Cash and cash equivalents33 33 — — 
U.S. government and federal agency obligations112 111 — 
Federal agency mortgage-backed securities100 — 100 — 
Commercial mortgage-backed securities44 — 44 — 
Corporate debt securities122 — 122 — 
Equity securities494 494 — — 
Foreign government fixed income securities— — 
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations— — 
Derivative assets: 
Foreign exchange contracts— — 
Commodity contracts7,139 981 5,701 457 
Measured using net asset value practical expedient:
Equity securities-nuclear trust fund investments99 000
Equity securities (classified within other non-current assets)000
Total assets$8,188 $1,635 $5,990 $457 
Derivative liabilities: 
Foreign exchange contracts$$— $$— 
Commodity contracts$4,798 $626 $4,008 $164 
Total liabilities$4,799 $626 $4,009 $164 
111


As of December 31, 2020
As of December 31, 2018 Fair Value
Fair Value
Total Level 1 Level 2 Level 3
(In millions)
Investments in securities (classified within other current and non-current assets)$39
 $2
 $18
 $19
(In millions)(In millions)TotalLevel 1Level 2Level 3
Investments in securities (classified within other current or non-current assets)Investments in securities (classified within other current or non-current assets)$25 $10 $15 $— 
Nuclear trust fund investments:       Nuclear trust fund investments:
Cash and cash equivalents19
 19
 
 
Cash and cash equivalents23 23 — — 
U.S. government and federal agency obligations46
 46
 
 
U.S. government and federal agency obligations70 69 — 
Federal agency mortgage-backed securities100
 
 100
 
Federal agency mortgage-backed securities89 — 89 — 
Commercial mortgage-backed securities22
 
 22
 
Commercial mortgage-backed securities36 — 36 — 
Corporate debt securities96
 
 96
 
Corporate debt securities144 — 144 — 
Equity securities312
 312
 
 
Equity securities434 434 — — 
Foreign government fixed income securities4
 
 4
 
Foreign government fixed income securities— 
Other trust fund investments:       
Other trust fund investments (classified within other non-current assets):Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations1
 1
 
 
U.S. government and federal agency obligations— — 
Derivative assets:       Derivative assets:
Commodity contracts1,042
 137
 796
 109
Commodity contracts821 59 623 139 
Interest rate contracts39
 
 39
 
Measured using net asset value practical expedient:       Measured using net asset value practical expedient:
Equity securities-nuclear trust fund investments64
 
 
 
Equity securities-nuclear trust fund investments87 000
Equity securities8
 
 
 
Equity securities (classified within other non-current assets)Equity securities (classified within other non-current assets)000
Total assets$1,792
 $517
 $1,075
 $128
Total assets$1,745 $597 $914 $139 
Derivative liabilities:       Derivative liabilities:
Commodity contracts$977
 $224
 $664
 $89
Commodity contracts$884 $86 $643 $155 
Total liabilities$977
 $224
 $664
 $89
Total liabilities$884 $86 $643 $155 



 As of December 31, 2017
 Fair Value
 Total Level 1 Level 2 Level 3
        
Investments in securities (classified within other current or non-current assets)$39
 $3
 $17
 $19
Nuclear trust fund investments:

      
Cash and cash equivalents47
 45
 2
 
U.S. government and federal agency obligations43
 42
 1
 
Federal agency mortgage-backed securities82
 
 82
 
Commercial mortgage-backed securities14
 
 14
 
Corporate debt securities99
 
 99
 
Equity securities334
 334
 
 
Foreign government fixed income securities5
 
 5
 
Other trust fund investments:       
U.S. government and federal agency obligations1
 1
 
 
Derivative assets:       
Commodity contracts744
 191
 509
 44
Interest rate contracts39
 
 39
 
Measured using net asset value practical expedient:       
Equity securities-nuclear trust fund investments68
 
 
 
Equity securities8
 
 
 
Total assets$1,523
 $616
 $768
 $63
Derivative liabilities:

      
Commodity contracts$674
 $257
 $358
 $59
Interest rate contracts6
 
 6
 
Total liabilities$680
 $257
 $364
 $59

The following tables reconcile, for the years ended December 31, 20182021 and 2017,2020, the beginning and ending balances for financial instruments that are recognized at fair value in the consolidated financial statements at least annually using significant unobservable inputs:
 For the Year Ended December 31, 2018
 Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
 
Debt
Securities
 
Derivatives (a)
 Total
 (In millions)
Beginning balance as of January 1, 2018$19
 $(15) $4
Contracts acquired in XOOM acquisition
 12
 12
Total losses realized/unrealized included in earnings
 (21) (21)
Purchases
 41
 41
Transfers into Level 3 (b)

 5
 5
Transfers out of Level 3 (b)

 (2) (2)
Ending balance as of December 31, 2018$19
 $20
 $39
Losses for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of December 31, 2018$
 $(17) $(17)
(a)Consists of derivatives assets and liabilities, net
For the Year Ended December 31, 2021
(b)Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(In millions)
Derivatives (a)
Beginning balance as of January 1, 2021$(16)
Contracts added from Direct Energy acquisition(15)
Total gains realized/unrealized included in earnings145 
Purchases93 
Transfers into/into Level 3 (b)
71 
Transfers out of Level 3 (b)
15 
Ending balance as of December 31, 2021$293 
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of December 31, 2021$120 
(a)Consists of derivatives assets and liabilities, net
(b)Transfers into/out of Level 3 are related to the availability of external broker quotes, and are valued as of the end of the reporting period. All transfers into/out of Level 3 are from/to Level 2
112


For the Year Ended December 31, 2020
Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(In millions)
Derivatives (a)
Beginning balance as of January 1, 2020$38 
Total (losses) realized/unrealized included in earnings(44)
Purchases(13)
Transfers into Level 3 (b)
Transfers out of Level 3 are from/to Level (b)
2

 For the Year Ended December 31, 2017
 Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
 
Debt
Securities
 
Derivatives (a)
 Total
 (In millions)
Beginning balance as of January 1, 2017$17
 $(64) $(47)
Total gains realized/unrealized included in earnings2
 37
 39
Purchases
 (4) (4)
Contracts reclassified to held-for-sale

 4
 4
Transfers into Level 3 (b)

 (1) (1)
 Transfer out of Level 3 (b)

 13
 13
Ending balance as of December 31, 2017$19
 $(15) $4
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of December 31, 2017$
 $1
 $1
(a)Ending balance as of December 31, 2020Consists of derivatives assets and liabilities, net
$(16)
(b)Transfers into/out of Level 3 are relatedGains for the period included in earnings attributable to the availability of external broker quotes, and are valuedchange in unrealized gains or losses relating to assets or liabilities still held as of the end of the reporting period. All transfers into/out of Level 3 are from/to Level 2December 31, 2020$

(a)Consists of derivatives assets and liabilities, net
(b)Transfers into/out of Level 3 are related to the availability of external broker quotes, and are valued as of the end of the reporting period. All transfers into/out of Level 3 are from/to Level 2
Realized and unrealized gains and losses included in earnings that are related to the energy derivatives are recorded in operating revenues and cost of operations.
Non-derivative fair value measurements
NRG's investments in debt securities are classified as Level 3 and consist of non-traded debt instruments that arewere valued based on third-party market value assessments.
The trust fund investments are held primarily to satisfy NRG's nuclear decommissioning obligations. These trust fund investments hold debt and equity securities directly and equity securities indirectly through commingled funds. The fair values of equity securities held directly by the trust funds are based on quoted prices in active markets and are categorized in Level 1. In addition, U.S. government and federal agency obligations are categorized as Level 1 because they trade in a highly liquid and transparent market. The fair values of corporate debt securities are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized in Level 2. Certain equity securities, classified as commingled funds, are analogous to mutual funds, are maintained by investment companies, and hold certain investments in accordance with a stated set of fund objectives. The fair value of the equity securities classified as commingled funds are based on net asset values per fund share (the unit of account), derived from the quoted prices in active markets of the underlying equity securities. However, because the shares in the commingled funds are not publicly quoted, not traded in an active market and are subject to certain restrictions regarding their purchase and sale, the commingled funds are categorized in Level 3.measured using net asset value practical expedient. See also Note 6, 7, Nuclear Decommissioning Trust Fund.Fund.
Derivative fair value measurements
A portion of the Company's contracts are exchange-traded contracts with readily available quoted market prices. A majority of NRG's contracts are non-exchange-traded contracts valued using prices provided by external sources, primarily price quotations available through brokers or over-the-counter and on-line exchanges. For the majority of NRG markets, the Company receives quotes from multiple sources. To the extent that NRG receives multiple quotes, the Company's prices reflect the average of the bid-ask mid-point prices obtained from all sources that NRG believes provide the most liquid market for the commodity. If the Company receives one quote, then the mid-point of the bid-ask spread for that quote is used. The terms for which such price information is available vary by commodity, region and product. A significant portion of the fair value of the Company's derivative portfolio is based on price quotes from brokers in active markets who regularly facilitate those transactions and the Company believes such price quotes are executable. The Company does not use third party sources that derive price based on proprietary models or market surveys. The remainder of the assets and liabilities represents contracts for which external sources or observable market quotes are not available. These contracts are valued based on various valuation techniques including but not limited to internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Contracts valued with prices provided by models and other valuation techniques make up 10%6% of derivative assets and 9%3% of derivative liabilities. The fair value of each contract is discounted using a risk free interest rate. In addition, the Company applies a credit reserve to reflect credit risk, which for foreign exchange contracts and interest rate swaps is calculated utilizing the bilateral method

based on published default probabilities. For commodities, to the extent that NRG's net exposure under a specific master agreement is an asset, the Company uses the counterparty's default swap rate. If the exposure under a specific master agreement is a liability, the Company uses NRG's default swap rate. For foreign exchange contracts, interest rate swaps and commodities, the credit reserve is added to the
113


discounted fair value to reflect the exit price that a market participant would be willing to receive to assume NRG's liabilities or that a market participant would be willing to pay for NRG's assets. As of December 31, 2018 and December 31, 20172021 the credit reserve did not resultresulted in a significant change$11 million decrease primarily within cost of operations. As of December 31, 2020 the credit reserve resulted in fair value.$2 million increase primarily within cost of operations.
The fair values in each category reflect the level of forward prices and volatility factors as of December 31, 2018,2021, and may change as a result of changes in these factors. Management uses its best estimates to determine the fair value of commodity and derivative contracts NRG holds and sells. These estimates consider various factors including closing exchange and over-the-counter price quotations, time value, volatility factors and credit exposure. It is possible, however, that future market prices could vary from those used in recording assets and liabilities from energy marketing and trading activities and such variations could be material.
NRG's significant positions classified as Level 3 include physical and financial natural gas and power executed in illiquid markets as well as financial transmission rights, or FTRs. The significant unobservable inputs used in developing fair value include illiquid natural gas and power location pricing which is derived as a basis to liquid locations. The basis spread is based on observable market data when available or derived from historic prices and forward market prices from similar observable markets when not available. For FTRs, NRG uses the most recent auction prices to derive the fair value.
The following tables quantify the significant unobservable inputs used in developing the fair value of the Company's Level 3 positions as of December 31, 20182021 and 2017:2020:
Significant Unobservable Inputs
December 31, 2021
Fair ValueInput/Range
(In millions)AssetsLiabilitiesValuation TechniqueSignificant Unobservable InputLowHighWeighted Average
Natural Gas Contracts$16 $Discounted Cash FlowForward Market Price (per MMBtu)$$40 $15 
Power Contracts392 121 Discounted Cash FlowForward Market Price (per MWh)212 35 
FTRs49 42 Discounted Cash FlowAuction Prices (per MWh)(122)43 
$457 $164 
Significant Unobservable Inputs
December 31, 2020
Fair ValueInput/Range
(In millions)AssetsLiabilitiesValuation TechniqueSignificant Unobservable InputLowHighWeighted Average
Power Contracts$111 $143 Discounted Cash FlowForward Market Price (per MWh)$10 $105 $21 
FTRs28 12 Discounted Cash FlowAuction Prices (per MWh)(28)43 
$139 $155 
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 Significant Unobservable Inputs
 December 31, 2018
 Fair Value   Input/Range
 Assets Liabilities Valuation Technique Significant Unobservable Input Low High Weighted Average
 (In millions)          
Power Contracts$89
 $75
 Discounted Cash Flow Forward Market Price (per MWh) $1
 $214
 $31
FTRs20
 14
 Discounted Cash Flow Auction Prices (per MWh) (90) 34
 
 $109
 $89
          


 Significant Unobservable Inputs
 December 31, 2017
 Fair Value   Input/Range
 Assets Liabilities Valuation Technique Significant Unobservable Input Low High Weighted Average
 (In millions)          
Power Contracts$33
 $47
 Discounted Cash Flow Forward Market Price (per MWh) $10
 $142
 $24
FTRs11
 12
 Discounted Cash Flow Auction Prices (per MWh) (28) 46
 
 $44
 $59
          

The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable inputs as of December 31, 20182021 and 2017:
2020:
Significant Unobservable InputPositionChange In InputImpact on Fair Value Measurement
Forward Market Price Natural Gas/ PowerBuyIncrease/(Decrease)Higher/(Lower)
Forward Market Price Natural Gas/PowerSellIncrease/(Decrease)Lower/(Higher)
FTR PricesBuyIncrease/(Decrease)Higher/(Lower)
FTR PricesSellIncrease/(Decrease)Lower/(Higher)
Under the guidance of ASC 815, entities may choose to offset cash collateral posted or received against the fair value of derivative positions executed with the same counterparties under the same master netting agreements. The Company has chosen not to offset positions as defined in ASC 815. As of December 31, 2018,2021, the Company recorded $287$291 million of cash collateral posted and $33$845 million of cash collateral received on its balance sheet.
Concentration of Credit Risk
In addition to the credit risk discussion as disclosed in Note 2,, Summary of Significant Accounting Policies, the following item is a discussion of the concentration of credit risk for the Company's financial instruments. Credit risk relates to the risk of loss resulting from non-performance or non-payment by counterparties pursuant to the terms of their contractual obligations. The Company monitors and manages credit risk through credit policies that include: (i) an established credit approval process; (ii) a daily monitoring of counterparties' credit limits; (iii) the use of credit mitigation measures such as margin, collateral, prepayment arrangements, or volumetric limits; (iv) the use of payment netting agreements; and (v) the use of master netting agreements that allow for the netting of positive and negative exposures of various contracts associated with a single counterparty. Risks surrounding counterparty performance and credit could ultimately impact the amount and timing of expected cash flows. The Company seeks to mitigate counterparty risk by having a diversified portfolio of counterparties. The Company also has credit protection within various agreements to call on additional collateral support if and when necessary. Cash margin is collected and held at the Company to cover the credit risk of the counterparty until positions settle.
Counterparty Credit Risk
As of December 31, 2018,2021, counterparty credit exposure, excluding credit exposure from RTOs, ISOs, and registered commodity exchanges and certain long-term agreements, was $301 million$2.2 billion and NRG held collateral (cash and letters of credit) against those positions of $123$598 million,, resulting in a net exposure of $180 million.$1.6 billion. NRG periodically receives collateral from counterparties in excess of their exposure. Collateral amounts shown include such excess while net exposure shown excludes excess collateral received. Approximately 66%87% of the Company's exposure before collateral is expected to roll off by the end of 2020.2023. Counterparty credit exposure is valued through observable market quotes and discounted at a risk free interest rate. The following tables highlight net counterparty credit exposure by industry sector and by counterparty credit quality. Net counterparty credit exposure is defined as the aggregate net asset position for NRG with counterparties where netting is permitted under the enabling agreement and includes all cash flow, mark-to-market and NPNS, and non-derivative transactions. The exposure is shown net of collateral held, and includes amounts net of receivables or payables.
Category
Net Exposure (a) (b)
(% of Total)
Utilities, energy merchants, marketers and other8967 %
Financial institutions1133 
Total100%
Category
Net Exposure (a) (b)
(% of Total)
Investment grade55 %
Non-Investment grade/Non-Rated5145 %
Investment grade49
Total100%
(a)TotalCounterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices.100 %
(b)The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long term contracts.
(a)Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices
(b)The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long term contracts
The Company currently has no exposure to any individual wholesale counterpartycounterparties in excess of 10% of the total net exposure discussed above as of December 31, 2018.2021. Changes in hedge positions and market prices will affect credit exposure and counterparty concentration. Given
115


During Winter Storm Uri, the credit quality, diversification and termCompany experienced nonperformance by a counterparty in one of its bilateral financial hedging transactions, resulting in exposure of $403 million. The Company is pursuing all means available to enforce its rights under this transaction but, given the size of the exposure, incannot determine with certainty what the portfolio, NRG does not anticipateamount of its ultimate recovery will be. The full exposure was recorded as a material impact onprovision for credit losses during the Company's financial position or results of operations from nonperformance by any of NRG's counterparties.

year ended December 31, 2021.
RTOs and ISOs
The Company participates in the organized markets of CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM, known as RTOs or ISOs. Trading in these markets is approved by FERC, or in the case of ERCOT, approved by the PUCT and includes credit policies that, under certain circumstances, require that losses arising from the default of one member on spot market transactions be shared by the remaining participants. As a result, the counterparty credit risk to these markets is limited to NRG’s share of overall market and are excluded from the above exposures.
Exchange Traded Transactions
The Company enters into commodity transactions on registered exchanges, notably ICE, NYMEX and NYMEX.Nodal. These clearinghouses act as the counterparty and transactions are subject to extensive collateral and margining requirements. As a result, these commodity transactions have limited counterparty credit risk.
Long TermLong-Term Contracts
Counterparty credit exposure described above excludes credit risk exposure under certain long term contracts, including California tolling agreements andprimarily solar PPAs. As external sources or observable market quotes are not available to estimate such exposure, the Company values these contracts based on various techniques including, but not limited to, internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Based on these valuation techniques, as of December 31, 2018,2021, aggregate credit risk exposure managed by NRG to these counterparties was approximately $434 million$1.1 billion for the next five years. This amount excludes potential credit exposures for projects with long-term PPAs that have not reached commercial operations and any exposure for entities classified as a discontinued operation.
NRG through its unconsolidated affiliates Ivanpah and Agua Caliente has exposure to PG&E of approximately $321 million for the next five years. As a result of the bankruptcy filing by PG&E on January 29, 2019, it is uncertain whether and to what extent the bankruptcy may have on these contracts. For further discussion see Note 15, Investments Accounted for by the Equity Method and Variable Interest Entities.
Retail Customer Credit Risk
The Company is exposed to retail credit risk through the Company's retail electricity and gas providers, which serve C&I customersHome and the Mass market.Business customers. Retail credit risk results in losses when a customer fails to pay for services rendered. The losses may result from both nonpayment of customer accounts receivable and the loss of in-the-money forward value. The Company manages retail credit risk through the use of established credit policies that include monitoring of the portfolio and the use of credit mitigation measures such as deposits or prepayment arrangements.
As of December 31, 2018,2021, the Company's retail customer credit exposure to C&IHome and MassBusiness customers was diversified across many customers and various industries, as well as government entities. The Company is also subject to risk with respect to its residential solar customers. The Company's bad debt expenseprovision for credit losses was $85$698 million, $68$108 million, and $45$95 million for the years ending December 31, 2018, 2017,2021, 2020, and 2016,2019, respectively. Current economic conditions may affectAs a result of Winter Storm Uri, the Company's customers' abilityCompany incurred additional credit losses from Business customers primarily due to pay billsa segment of customers whose contracts included a pass through of wholesale power prices which were significantly escalated during the storm and from customers who failed to meet their obligations in a timely manner, which could increase customer delinquencies and may lead to an increase in bad debt expense.ERCOT load curtailment programs.


Note 56 — Accounting for Derivative Instruments and Hedging Activities
ASC 815 requires the Company to recognize all derivative instruments on the balance sheet as either assets or liabilities and to measure them at fair value each reporting period unless they qualify for a NPNS exception. The Company may elect to designate certain derivatives as cash flow hedges, if certain conditions are met, and defer the change in fair value of the derivatives to accumulated OCI, until the hedged transactions occur and are recognized in earnings.
For derivatives that are not designated as cash flow hedges or do not qualify for hedge accounting treatment, the changes in the fair value will be immediately recognized in earnings. Certain derivative instruments may qualify for the NPNS exception and are therefore exempt from fair value accounting treatment. ASC 815 applies to NRG's energy related commodity contracts, foreign exchange contracts, and interest rate swaps, and equity contracts.swaps.
As the Company engages principally in the trading and marketing of its generation assets and retail businesses,operations, some of NRG's commercial activities qualify for NPNS accounting. Most of the retail load contracts either qualify for the NPNS exception or fail to meet the criteria for a derivative and the majority of the retail supply and fuels supply contracts are recorded under mark-to-market accounting. All of NRG's hedging and trading activities are subject to limits within the Company's Risk Management Policy.

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Energy-Related CommoditiesCredit Risk Related Contingent Features
Certain of the Company's hedging and trading agreements contain provisions that entitle the counterparty to demand that the Company post additional collateral if the counterparty determines that there has been deterioration in the Company's credit quality, generally termed “adequate assurance” under the agreements, or require the Company to post additional collateral if there were a downgrade in the Company's credit rating. In addition, as a result of the acquisition of Direct Energy from Centrica, certain of the Company’s agreements as of December 31, 2021, were still supported by credit support posted by Centrica, and as a result could require the Company to post collateral upon a deterioration or downgrade of Centrica. The collateral potentially required for contracts with adequate assurance clauses that are in a net liability position as of December 31, 2021, was $1.0 billion. The Company is also a party to certain marginable agreements under which it has a net liability position, but the counterparty has not called for the collateral due, which was approximately $70 million as of December 31, 2021. In the event of a downgrade in the Company's credit rating and if called for by the counterparty, $1 million of additional collateral would be required for all contracts with credit rating contingent features as of December 31, 2021.
75

Currency Exchange Risk
NRG is subject to transactional exchange rate risk from transactions with customers in countries outside of the United States, primarily within Canada, as well as from intercompany transactions between affiliates. Transactional exchange rate risk arises from the purchase and sale of goods and services in currencies other than our functional currency or the functional currency of an applicable subsidiary. NRG hedges a portion of its forecasted currency transactions with foreign exchange forward contracts. As of December 31, 2021, NRG is exposed to changes in foreign currency primarily associated with the purchase of U.S. dollar denominated natural gas for its Canadian business and entered into foreign exchange contracts with notional amount of $279 million.
The Company is subject to translation exchange rate risk related to the translation of the financial statements of its foreign operations into U.S. dollars. Costs incurred and sales recorded by subsidiaries operating outside of the United States are translated into U.S. dollars using exchange rates effective during the respective period. As a result, the Company is exposed to movements in the exchange rates of various currencies against the U.S. dollar, primarily the Canadian and Australian dollars. A hypothetical 10% appreciation in major currencies relative to the U.S. dollar as of December 31, 2021 would have resulted in an increase of $10 million to net income within the Consolidated Statement of Operations.
Item 8 — Financial Statements and Supplementary Data
The financial statements and schedules are included in Part IV, Item 15 of this Form 10-K.

Item 9 — Changes in and Disagreements With Accountants on Accounting and Financial Disclosure
None.

Item 9A — Controls and Procedures
Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures and Internal Control Over Financial Reporting
Under the supervision and with the participation of NRG's management, including its principal executive officer, principal financial officer and principal accounting officer, NRG conducted an evaluation of the effectiveness of the design and operation of its disclosure controls and procedures, as such term is defined in Rules 13a-15(e) or 15d-15(e) of the Exchange Act. Based on this evaluation, the Company's principal executive officer, principal financial officer and principal accounting officer concluded that the disclosure controls and procedures were effective as of the end of the period covered by this Annual Report on Form 10-K. Management's report on the Company's internal control over financial reporting and the report of the Company's independent registered public accounting firm are incorporated under the caption "Management's Report on Internal Control over Financial Reporting" and under the caption "Report of Independent Registered Public Accounting Firm" in this Annual Report on Form 10-K for the fiscal year ended December 31, 2021.
Changes in Internal Control over Financial Reporting
During the year ended December 31, 2021, the Company completed its acquisition of Direct Energy. In the first quarter of 2022, the Company integrated a significant component of Direct Energy's accounting systems into NRG's legacy ERP system. As part of this integration, the Company has completed the evaluation of our internal controls related to Direct Energy, and designed and implemented a control structure over Direct Energy's operations. Other than the Direct Energy acquisition, there were no changes in NRG’s internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) that occurred in the fourth quarter of 2021 that materially affected, or are reasonably likely to materially affect, NRG’s internal control over financial reporting.
76

Inherent Limitations over Internal Controls
NRG's internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements for external purposes in accordance with GAAP. The Company's internal control over financial reporting includes those policies and procedures that:
1.Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the Company's assets;
2.Provide reasonable assurance that transactions are recorded as necessary to permit preparation of consolidated financial statements in accordance with GAAP, and that the Company's receipts and expenditures are being made only in accordance with authorizations of its management and directors; and
3.Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the consolidated financial statements.
Internal control over financial reporting cannot provide absolute assurance of achieving financial reporting objectives because of its inherent limitations, including the possibility of human error and circumvention by collusion or overriding of controls. Accordingly, even an effective internal control system may not prevent or detect material misstatements on a timely basis. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate.
Management's Report on Internal Control over Financial Reporting
The Company's management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Under the supervision and with the participation of the Company's management, including its principal executive officer, principal financial officer and principal accounting officer, the Company conducted an evaluation of the effectiveness of its internal control over financial reporting based on the framework in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on the Company's evaluation under the framework in Internal Control — Integrated Framework (2013), the Company's management concluded that its internal control over financial reporting was effective as of December 31, 2021.
On January 5, 2021, NRG acquired Direct Energy, as further described in Note 4, Acquisitions, Discontinued Operations and Dispositions. Direct Energy comprised of approximately 35% of the Company's total assets as of December 31, 2021 and approximately 58% of the Company's total revenues for the year ended December 31, 2021. As of December 31, 2021, we are in the process of evaluating the internal controls of the acquired business and integrated it into our existing operations. The acquired business has, therefore, been excluded from management's assessment of internal control over financial reporting for the year ended December 31, 2021.
The effectiveness of the Company's internal control over financial reporting as of December 31, 2021 has been audited by KPMG LLP, the Company's independent registered public accounting firm, as stated in its report which is included in this Annual Report on Form 10-K.

77

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To manage the commodityBoard of Directors and Stockholders
NRG Energy, Inc.:
Opinion on Internal Control Over Financial Reporting
We have audited NRG Energy, Inc. and subsidiaries' (the Company) internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2021 and 2020, the related consolidated statements of operations, comprehensive income, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2021, and the related notes and financial statement schedule II (collectively, the consolidated financial statements), and our report dated February 24, 2022 expressed an unqualified opinion on those consolidated financial statements.
The Company acquired Direct Energy during 2021 and management excluded from its assessment of the effectiveness of the Company's internal control over financial reporting as of December 31, 2021. Direct Energy's internal control over financial reporting are associated with 35% of total assets and 58% of total revenues included in the consolidated financial statements of the Company as of and for the year ended December 31, 2021. Our audit of internal control over financial reporting of the Company also excluded an evaluation of the internal control over financial reporting of Direct Energy.
Basis for Opinion
The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
Definition and Limitations of Internal Control Over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ KPMG LLP

Philadelphia, Pennsylvania
February 24, 2022
78

Item 9B — Other Information
Entry into a Material Definitive Agreement.
On February 22, 2022, the Company entered into a Supplemental Indenture (the “Supplemental Indenture”), by and among the Company, the guarantors named therein (the “Guarantors") and Delaware Trust Company, as trustee and conversion agent (the “Trustee”), to supplement the Indenture, dated as of May 24, 2018 (the “Indenture”), among the Company, the Guarantors and the Trustee, governing the Convertible Senior Notes. Pursuant to the Supplemental Indenture, the Company has irrevocably (i) eliminated the right of the Company to elect Physical Settlement (as defined in the Indenture) as the Settlement Method (as defined in the Indenture) on any conversion of Convertible Senior Notes that occurs on or after the date of the Supplemental Indenture and (ii) elected that, with respect to any Combination Settlement (as defined in the Indenture), the Specified Dollar Amount (as defined in the Indenture) per $1,000 principal amount of the Convertible Senior Notes shall be no lower than $1,000.
The foregoing description of the Supplemental Indenture does not purport to be complete and is qualified in its entirety by reference to the full text of the Supplemental Indenture, a copy of which is filed as Exhibit 4.52 to this report and is incorporated herein by reference.
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
Effective February 24, 2022, Emily C. Picarello, CPA, was named as Principal Accounting Officer of NRG Energy, Inc. Ms. Picarello, age 41, joined the Company in December 2018 and served as Assistant Controller for the Company through November 2021, when she was promoted to Vice President and Corporate Controller. Ms. Picarello will continue in this role reporting to Alberto Fornaro, NRG's Executive Vice President and Chief Financial Officer.
Prior to her employment with the Company, Ms. Picarello spent over seven years with PVH Corp., one of the largest global apparel companies in the world, first as the Director of Financial Reporting and then as the Vice President, Financial Reporting. Prior to Ms. Picarello's time with PVH Corp., she was an auditor with KPMG LLP for over eight years, holding various positions including Audit Senior Manager.

Item 9C— Disclosure Regarding Foreign Jurisdictions that Prevent Inspections
Not applicable.
79

PART III

Item 10 — Directors, Executive Officers and Corporate Governance
Directors and Executive Officers
Information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.
Code of Ethics
NRG has adopted a code of ethics entitled "NRG Code of Conduct" that applies to directors, officers and employees, including the chief executive officer and senior financial officers of NRG. It may be accessed through the "Governance" section of the Company's website at www.nrg.com. NRG also elects to disclose the information required by Form 8-K, Item 5.05, "Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics," through the Company's website, and such information will remain available on this website for at least a 12-month period. A copy of the "NRG Code of Conduct" is available in print to any stockholder who requests it.
Other information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.

Item 11 — Executive Compensation
Information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.

Item 12 — Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Securities Authorized for Issuance under Equity Compensation Plans
Plan Category
(a)
Number of Securities
to be Issued Upon
Exercise of
Outstanding Options,
Warrants and Rights
(b)
Weighted-Average Exercise
Price of Outstanding
Options, Warrants and
Rights
(c)
Number of Securities
Remaining Available
for Future Issuance
Under Equity Compensation
Plans (Excluding
Securities Reflected
in Column (a)
Equity compensation plans approved by security holders2,514,828 (1)$— 11,508,073 
Equity compensation plans not approved by security holders20,131 (2)20.07 — (4)
Total2,534,959 $20.07 11,508,073 (3)
(1)Consists of shares issuable under the NRG LTIP and the ESPP. The NRG LTIP became effective upon the Company's emergence from bankruptcy. On April 27, 2017, the NRG LTIP was amended and restated to increase the number of shares available for issuance to 25,000,000. The ESPP, as amended and restated, was approved by the Company's stockholders on April 27, 2017, and became effective April 28, 2017. As of December 31, 2021, there were 2,636,199 shares reserved from the Company's treasury shares for the ESPP
(2)Consists of shares issuable under the NRG GenOn LTIP. The plans is listed as “not approved” because it was not subject to separate line item approval by NRG's stockholders when the Merger was approved. See Item 15 Note 21, Stock-Based Compensation, to Consolidated Financial Statements for a discussion of the NRG GenOn LTIP
(3)Consists of 8,871,874 shares of common stock under NRG's LTIP and 2,636,199 shares of treasury stock reserved for issuance under the ESPP.
(4)Upon adoption of the NRG Amended and Restated LTIP effective April 27, 2017, no securities remain available for future issuance under the NRG GenOn LTIP. For further discussion, see Note 21, Stock-Based Compensation

NRG LTIP currently provides for grants of restricted stock units, relative performance stock units, deferred stock units and dividend equivalent rights. NRG's directors, officers and employees, as well as other individuals performing services for, or to whom an offer of employment has been extended by the Company, are eligible to receive grants under the NRG LTIP. The purpose of the NRG LTIP is to promote the Company's long-term growth and profitability by providing these individuals with incentives to maximize stockholder value and otherwise contribute to the Company's success and to enable the Company to attract, retain and reward the best available persons for positions of responsibility. The Compensation Committee of the Board of Directors administers the NRG LTIP.
Other information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.

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Item 13 — Certain Relationships and Related Transactions, and Director Independence
Information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.

Item 14 — Principal Accounting Fees and Services
Information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.
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PART IV

Item 15 — Exhibits, Financial Statement Schedules
(a)(1) Financial Statements
The following consolidated financial statements of NRG Energy, Inc. and related notes thereto, together with the reports thereon of KPMG LLP, Philadelphia, PA, Auditor Firm ID: 185, are included herein:
Consolidated Statements of Operations — Years ended December 31, 2021, 2020, and 2019
Consolidated Statements of Comprehensive Income — Years ended December 31, 2021, 2020, and 2019
Consolidated Balance Sheets — As of December 31, 2021 and 2020
Consolidated Statements of Cash Flows — Years ended December 31, 2021, 2020, and 2019
Consolidated Statements of Stockholders' Equity — Years ended December 31, 2021, 2020, and 2019
Notes to Consolidated Financial Statements
(a)(2) Financial Statement Schedule
The following Consolidated Financial Statement Schedule of NRG Energy, Inc. is filed as part of Item 15 of this report and should be read in conjunction with the Consolidated Financial Statements.
Schedule II — Valuation and Qualifying Accounts
All other schedules for which provision is made in the applicable accounting regulation of the Securities and Exchange Commission are not required under the related instructions or are inapplicable, and therefore, have been omitted.

(a)(3) Exhibits: See Exhibit Index submitted as a separate section of this report.
(b) Exhibits
See Exhibit Index submitted as a separate section of this report.
(c) Not applicable

82

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors and Stockholders
NRG Energy, Inc.:
Opinion on the Consolidated Financial Statements
We have audited the accompanying consolidated balance sheets of NRG Energy, Inc. and subsidiaries (the Company) as of December 31, 2021 and 2020, the related consolidated statements of operations, comprehensive income, stockholders' equity, and cash flows for each of the years in the three-year period ended December 31, 2021, and the related notes and financial statement schedule II (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2021, in conformity with U.S. generally accepted accounting principles.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 24, 2022 expressed an unqualified opinion on the effectiveness of the Company's internal control over financial reporting.
Basis for Opinion
These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters
The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Evaluation of the sufficiency of audit evidence over operating revenues
As discussed in Note 3 to the consolidated financial statements, the Company had $26.989 billion of operating revenues. Operating revenue is derived from various revenue streams in different geographic markets and the Company’s processes and related information technology (IT) systems used to record revenue differ for each of these revenue streams.
We identified the evaluation of the sufficiency of audit evidence over operating revenues as a critical audit matter which required a high degree of auditor judgment due to the number of revenue streams and IT systems involved in the revenue recognition process. This included determining the revenue streams over which procedures were to be performed and evaluating the nature and extent of evidence obtained over the individual revenue streams as well as operating revenue in the aggregate. It also included the involvement of IT professionals with specialized skills and knowledge to assist in the performance of certain procedures.
83

The following are the primary procedures we performed to address this critical audit matter. We, with the assistance of IT professionals, applied auditor judgment to determine the revenue streams over which procedures were performed as well as the nature and extent of such procedures. For certain revenue streams, we evaluated the design and tested the operating effectiveness of certain internal controls over the Company’s revenue recognition processes. For certain revenue streams, we involved IT professionals, who assisted in testing certain IT applications used by the Company in its revenue recognition processes. In addition, we assessed recorded revenue for a selection of transactions by comparing the amounts recognized to underlying documentation, including contracts with customers. In addition, we evaluated the sufficiency of audit evidence obtained over operating revenues by assessing the results of procedures performed, including the appropriateness of such evidence.
Fair value of customer relationship intangible assets

As discussed in Note 4 to the consolidated financial statements, the Company acquired Direct Energy on January 5, 2021 for consideration of $3.724 billion. The Company recorded the identifiable assets acquired and liabilities assumed at fair value at the acquisition date, including $1.277 billion of customer relationship intangible assets which represent the generation of future income reflective of Direct Energy's customer base. Customer relationship intangible assets were valued using the excess earnings method of the income approach.
We identified the evaluation of the fair value of customer relationship intangible assets acquired in the Direct Energy transaction as a critical audit matter. A higher degree of auditor judgment was required to evaluate the customer attrition used in the excess earnings method. Changes in the customer attrition could have a significant impact on the forecasted future cash flows used in the excess earnings method and the resulting fair value of the customer relationship intangible assets.
The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the Company's acquisition-date valuation process, including controls over the development of the customer attrition. We performed sensitivity analyses over the Company's customer attrition used to determine the estimated fair value of the customer relationship intangible assets to assess the effect of changes in that assumption on the Company's determination of fair value. We evaluated the customer attrition by comparing it to the Company's actual customer attrition.
/s/ KPMG LLP
We have served as the Company's auditor since 2004.

Philadelphia, Pennsylvania
February 24, 2022



84


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS
 For the Year Ended December 31,
(In millions, except per share amounts)202120202019
Operating Revenues
Total operating revenues$26,989 $9,093 $9,821 
Operating Costs and Expenses
Cost of operations (excluding depreciation and amortization shown below)20,482 6,540 7,303 
Depreciation and amortization785 435 373 
Impairment losses544 75 
Selling, general and administrative costs1,293 810 760 
Provision for credit losses698 108 95 
Acquisition-related transaction and integration costs93 23 
Total operating costs and expenses23,895 7,991 8,538 
Gain on sale of assets247 
Operating Income3,341 1,105 1,290 
Other Income/(Expense)
Equity in earnings of unconsolidated affiliates17 17 
Impairment losses on investments— (18)(108)
Other income, net63 67 66 
Loss on debt extinguishment(77)(9)(51)
Interest expense(485)(401)(413)
Total other expense(482)(344)(504)
Income from Continuing Operations Before Income Taxes2,859 761 786 
Income tax expense/(benefit)672 251 (3,334)
Income from Continuing Operations2,187 510 4,120 
Income from discontinued operations, net of income tax— — 321 
Net Income2,187 510 4,441 
Less: Net income attributable to redeemable noncontrolling interest— — 
Net Income Attributable to NRG Energy, Inc.$2,187 $510 $4,438 
Income Per Share Attributable to NRG Energy, Inc. Common Stockholders
Weighted average number of common shares outstanding — basic245 245 262 
Income from continuing operations per weighted average common share — basic$8.93 $2.08 $15.71 
Income from discontinued operations per weighted average common share — basic$— $— $1.23 
Net Income per Weighted Average Common Share — Basic$8.93 $2.08 $16.94 
Weighted average number of common shares outstanding — diluted245 246 264 
Income from continuing operations per weighted average common share — diluted$8.93 $2.07 $15.59 
Income from discontinued operations per weighted average common share — diluted$— $— $1.22 
Net Income per Weighted Average Common Share — Diluted$8.93 $2.07 $16.81 
See notes to Consolidated Financial Statements
85


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
For the Year Ended December 31,
(In millions)202120202019
Net Income$2,187 $510 $4,441 
Other Comprehensive Income/(Loss), net of tax
Foreign currency translation adjustments, net of income tax(5)(1)
Available-for-sale securities, net of income tax— — (19)
Defined benefit plans, net of income tax85 (22)(78)
Other comprehensive income/(loss)80 (14)(98)
Comprehensive Income2,267 496 4,343 
Less: Net income attributable to redeemable noncontrolling interest— — 
Comprehensive Income Attributable to NRG Energy, Inc.$2,267 $496 $4,340 
See notes to Consolidated Financial Statements
86


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
 As of December 31,
(In millions)20212020
ASSETS  
Current Assets  
Cash and cash equivalents$250 $3,905 
Funds deposited by counterparties845 19 
Restricted cash15 
Accounts receivable, net3,245 904 
Uplift securitization proceeds receivable from ERCOT689 — 
Inventory498 327 
Derivative instruments4,613 560 
Cash collateral paid in support of energy risk management activities291 50 
Prepayments and other current assets395 257 
Total current assets10,841 6,028 
Property, plant and equipment, net1,688 2,547 
Other Assets
Equity investments in affiliates157 346 
Operating lease right-of-use assets, net271 301 
Goodwill1,795 579 
Intangible assets, net2,511 668 
Nuclear decommissioning trust fund1,008 890 
Derivative instruments2,527 261 
Deferred income taxes2,155 3,066 
Other non-current assets229 216 
Total other assets10,653 6,327 
Total Assets$23,182 $14,902 
See notes to Consolidated Financial Statements
87


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Continued)
 As of December 31,
(In millions, except share data)20212020
LIABILITIES AND STOCKHOLDERS' EQUITY  
Current Liabilities 
Current portion of long-term debt and finance leases$$
Current portion of operating lease liabilities81 69 
Accounts payable 2,274 649 
Derivative instruments3,387 499 
Cash collateral received in support of energy risk management activities845 19 
Accrued expenses and other current liabilities1,324 678 
Total current liabilities7,915 1,915 
Other Liabilities 
Long-term debt and finance leases7,966 8,691 
Non-current operating lease liabilities236 278 
Nuclear decommissioning reserve321 303 
Nuclear decommissioning trust liability666 565 
Derivative instruments1,412 385 
Deferred income taxes73 19 
Other non-current liabilities993 1,066 
Total other liabilities11,667 11,307 
Total Liabilities19,582 13,222 
Commitments and Contingencies00
Stockholders' Equity
Common stock; $0.01 par value; 500,000,000 shares authorized; 423,547,174 and 423,057,848 shares issued; and 243,753,899 and 244,231,933 shares outstanding at December 31, 2021 and 2020, respectively
Additional paid-in capital8,531 8,517 
Retained earnings/(accumulated deficit)464 (1,403)
Treasury stock, at cost; 179,793,275 and 178,825,915 shares at December 31, 2021 and 2020, respectively(5,273)(5,232)
Accumulated other comprehensive loss(126)(206)
Total Stockholders' Equity3,600 1,680 
Total Liabilities and Stockholders' Equity$23,182 $14,902 
See notes to Consolidated Financial Statements

88


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
 For the Year Ended December 31,
(In millions)202120202019
Cash Flows from Operating Activities
Net income$2,187 $510 $4,441 
Income from discontinued operations, net of income tax— — 321 
Income from continuing operations2,187 510 4,120 
Adjustments to reconcile net income to net cash provided by operating activities:
Distributions from and equity in earnings of unconsolidated affiliates20 45 14 
Depreciation and amortization785 435 373 
Accretion of asset retirement obligations30 45 51 
Provision for credit losses698 108 95 
Amortization of nuclear fuel51 54 52 
Amortization of financing costs and debt discounts39 48 26 
Loss on debt extinguishment77 51 
Amortization of in-the-money contracts and emission allowances106 70 72 
Amortization of unearned equity compensation21 22 20 
Net gain on sale of assets and disposal of assets(261)(23)(23)
Impairment losses544 93 113 
Changes in derivative instruments(3,626)137 34 
Changes in deferred income taxes and liability for uncertain tax benefits604 228 (3,353)
Changes in collateral deposits in support of risk management activities797 127 105 
Changes in nuclear decommissioning trust liability40 51 37 
Oil lower of cost or market adjustment— 29 — 
Uplift securitization proceeds receivable from ERCOT(689)— — 
Cash (used)/provided by changes in other working capital, net of acquisition and disposition effects:
Accounts receivable - trade(1,232)— 
Inventory(61)27 22 
Prepayments and other current assets31 29 
Accounts payable476 (56)(177)
Accrued expenses and other current liabilities(55)(42)(75)
Other assets and liabilities(89)(84)(186)
Cash provided by continuing operations493 1,837 1,405 
Cash provided by discontinued operations— — 
Net Cash Provided by Operating Activities$493 $1,837 $1,413 
Cash Flows from Investing Activities
Payments for acquisitions of assets, businesses and leases$(3,559)$(284)$(355)
Capital expenditures(269)(230)(228)
Net (purchases)/sales of emissions allowances— (10)11 
Investments in nuclear decommissioning trust fund securities(751)(492)(416)
Proceeds from sales of nuclear decommissioning trust fund securities710 439 381 
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees830 81 1,294 
Changes in investments in unconsolidated affiliates— (91)
Net contributions to discontinued operations— — (44)
Other— — 
Cash (used)/provided by continuing operations(3,039)(494)558 
Cash used by discontinued operations— — (2)
Net Cash (Used)/Provided by Investing Activities$(3,039)$(494)$556 
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 For the Year Ended December 31,
(In millions)202120202019
Cash Flows from Financing Activities
Proceeds from issuance of long-term debt$1,100 $3,234 $1,833 
Payments for short and long-term debt(1,861)(335)(2,571)
Payments of dividends to common stockholders(319)(295)(32)
Net receipts/(payments) from settlement of acquired derivatives that include financing elements938 (7)(4)
Payments for share repurchase activity(48)(229)(1,440)
Payments for debt extinguishment costs(65)(5)(26)
Payments of debt issuance costs(18)(75)(35)
Net (repayments)/proceeds of Revolving Credit Facility— (83)83 
Proceeds from issuance of common stock
Purchase of and distributions to noncontrolling interests from subsidiaries— (2)(2)
Cash (used)/provided by continuing operations(272)2,204 (2,191)
Cash provided by discontinued operations— — 43 
Net Cash (Used)/Provided by Financing Activities$(272)$2,204 $(2,148)
Effect of exchange rate changes on cash and cash equivalents(2)(2)— 
Change in Cash from discontinued operations— — 49 
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash(2,820)3,545 (228)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period3,930 385 613 
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period$1,110 $3,930 $385 
For further discussion of supplemental cash flow information see Note 26, Cash Flow Information

See notes to Consolidated Financial Statements
90


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(In millions)
Common
Stock
Additional
Paid-In
Capital
Retained Earnings/ (Accumulated Deficit)
Treasury
Stock
Accumulated
Other
Comprehensive
Loss
Total
Stock-holders'
Equity
Balances at December 31, 2018$$8,510 $(6,022)$(3,632)$(94)$(1,234)
Net income attributable to NRG Energy, Inc.4,438 4,438 
Other comprehensive loss(98)(98)
Shares reissuance for ESPP
Share repurchases(1,409)(1,409)
Equity-based awards activity, net(a)
(16)(16)
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(32)(32)
Balance at December 31, 2019$$8,501 $(1,616)$(5,039)$(192)$1,658 
Net income510 510 
Other comprehensive loss(14)(14)
Repurchase of partners' equity interest in VIE18 18 
Shares reissuance for ESPP
Share repurchases(197)(197)
Equity-based awards activity, net(a)
(3)(3)
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(297)(297)
Balance at December 31, 2020$$8,517 $(1,403)$(5,232)$(206)$1,680 
Net income2,187 2,187 
Other comprehensive income80 80 
Shares reissuance for ESPP
Share repurchases(44)(44)
Equity-based awards activity, net(a)
12 12 
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(320)(320)
Balance at December 31, 2021$$8,531 $464 $(5,273)$(126)$3,600 
(a)Includes $(9) million, $(27) million and $(36) million of equivalent shares purchased in lieu of tax withholding on equity compensation issuances for the years ended December 31, 2021, 2020 and 2019, respectively
(b)Dividends per common share were $1.30, $1.20 and $0.12 for each of the years ended December 31,2021, 2020 and 2019, respectively

See notes to Consolidated Financial Statements
91


NRG ENERGY, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Note 1 — Nature of Business
General
NRG Energy, Inc., or NRG or the Company, is a consumer services company built on dynamic retail brands. NRG brings the power of energy to customers by producing and selling energy and related products and services, nation-wide in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG sells power, natural gas, home and power services, and develops innovative, sustainable solutions, predominately under the brand names NRG, Reliant, Direct Energy, Green Mountain Energy, Stream, and XOOM Energy. The Company has a customer base that includes approximately 6 million Home customers as well as commercial, industrial, and wholesale customers, supported by approximately 18,000 MW of generation.
On January 5, 2021, the Company acquired Direct Energy, which had been a North American subsidiary of Centrica. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increases NRG's retail portfolio by over 3 million customers and complements its integrated model. It also broadens the Company's presence in the Northeast and into states and locales where it does not currently operate, supporting NRG's objective to diversify its business. See Note 4, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements for further discussion of the acquisition of Direct Energy.
On December 1, 2021, the Company sold approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. NRG received $623 million of net proceeds, after purchase price adjustments pursuant to the terms of the Purchase and Sale Agreement entered into on February 28, 2021. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released, leading the Company to announce the near-term retirement of approximately 1,600 MW of its PJM coal generating assets in June 2022. On July 30, 2021, PJM identified reliability impacts resulting from the proposed deactivation of one of those assets, Indian River Unit 4. On August 27, 2021 the Company notified PJM that it would continue operations at Indian River Unit 4 until the reliability upgrades identified by PJM were completed, provided that the unit receives a satisfactory and compensatory reliability must run arrangement. See Item 15 Note 11, Asset Impairments, to the Consolidated Financial Statements for further discussion. The Company is continuing to evaluate the viability of the remaining PJM generating assets.
The Company manages its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus.
The Company's business is segmented as follows:
Texas, which includes all activity related to customer, plant and market operations in Texas;
East, which includes all activity related to customer, plant and market operations in the East;
West/Services/Other, which includes the following assets and activities: (i) all activity related to plant and market operations in the West and Canada, (ii) the Services businesses (iii) activity related to the Cottonwood facility, (iv) the remaining renewables activity, including the Company’s equity method investment in Ivanpah Master Holdings, LLC, and (v) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and
Corporate activities.

Note 2 — Summary of Significant Accounting Policies
Basis of Presentation and Principles of Consolidation
The Company's consolidated financial statements have been prepared in accordance with U.S. GAAP. The ASC, established by the FASB, is the source of authoritative U.S. GAAP to be applied by nongovernmental entities. In addition, the rules and interpretative releases of the SEC under authority of federal securities laws are also sources of authoritative U.S. GAAP for SEC registrants.
The consolidated financial statements include NRG's accounts and operations and those of its subsidiaries in which the Company has a controlling interest. All significant intercompany transactions and balances have been eliminated in consolidation. The usual condition for a controlling financial interest is ownership of a majority of the voting interests of an entity. However, a controlling financial interest may also exist through arrangements that do not involve controlling voting
92


interests. As such, NRG applies the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or not controlled through its voting interests, referred to as a VIE, should be consolidated.
Cash and Cash Equivalents
Cash and cash equivalents include highly liquid investments with an original maturity of three months or less at the time of purchase.
Funds Deposited by Counterparties
Funds deposited by counterparties consist of cash held by the Company as a result of collateral posting obligations from its counterparties. Though some amounts are segregated into separate accounts, not all funds are contractually restricted. Based on the Company's intention, these funds are not available for the payment of general corporate obligations; however, they are available for liquidity management. Depending on market fluctuations and the settlement of the underlying contracts, the Company will refund this collateral to the hedge counterparties pursuant to the terms and conditions of the underlying trades. Since collateral requirements fluctuate daily and the Company cannot predict if any collateral will be held for more than twelve months, the funds deposited by counterparties are classified as a current asset on the Company's balance sheet, with an offsetting liability for this cash collateral received within current liabilities.
Winter Storm Uri Uplift Securitization Proceeds
The Texas Legislature passed HB 4492 for ERCOT to mitigate exceptionally high price adders and ancillary service costs incurred by LSEs during Winter Storm Uri. HB 4492 authorized ERCOT to obtain $2.1 billion of financing to distribute to LSEs that were charged and paid to ERCOT those highly priced ancillary service and ORDPA during Winter Storm Uri.
In December 2021, ERCOT filed with the PUCT a calculation of each LSE’s share of proceeds based on the settlement methodology. The Company accounted for the proceeds we will receive by analogy to the contribution model within ASC 958-605, Not-for-Profit Entities- Revenue Recognition and the grant model within IAS 20, Accounting for Government Grants and Disclosure of Government Assistance, as a reduction to expenses in the consolidated statements of operations in the annual period for which the proceeds are intended to compensate. The Company expects to receive proceeds of $689 million from ERCOT in the second quarter of 2022 and we concluded that the threshold for recognizing a receivable was met in December 2021 as the amounts to be received are determinable and ERCOT was directed by its governing body, the PUCT, to take all actions required to effectuate the $2.1 billion funding approved in the DOO. The associated expense reduction is reflected in Cost of operations within our consolidated statements of operations as that is where the initial costs which are being compensated for were recorded.
Credit Losses
On January 1, 2020, the Company adopted ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, or ASU No. 2016-13, using the modified retrospective approach. Following the adoption of the new standard, the Company’s process of estimating expected credit losses remains materially consistent with its historical practice. Information prior to January 1, 2020, which was previously referred to as the allowance and provision for bad debt, has not been restated and continues to be reported under the accounting standards in effect for that period.
Retail trade receivables are reported on the balance sheet net of the allowance for credit losses. The Company accrues an allowance for current expected credit losses based on (i) estimates of uncollectible revenues by analyzing accounts receivable aging and current and reasonable forecasts of expected economic factors including, but not limited to, unemployment rates and weather-related events, (ii) historical collections and delinquencies, and (iii) counterparty credit ratings for commercial and industrial customers. The Company writes off customer contract receivable balances against the allowance for credit losses when it is determined a receivable is uncollectible.
The following table represents the activity in the allowance for credit losses for the year ended December 31, 2021:
Year Ended December 31,
(In millions)20212020
Beginning balance$67 $43 
Acquired balance from Direct Energy112 — 
Provision for credit losses(a)
698 108 
Write-offs(224)(101)
Recoveries collected30 17 
Ending balance(a)
$683 $67 
(a)Includes bilateral finance hedging risk of $403 million accounted for under ASC 815
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The increase in the provision for credit losses during the year ended December 31, 2021, compared to 2020 was primarily due to the impacts of Winter Storm Uri on bilateral finance hedging risk of $403 million, counterparty credit risk of $126 million and ERCOT default shortfall payments of $67 million.

Restricted Cash
The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of cash flows.
 Year Ended December 31,
(In millions)202120202019
Cash and cash equivalents$250 $3,905 $345 
Funds deposited by counterparties845 19 32 
Restricted cash15 
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statements of cash flows$1,110 $3,930 $385 
Restricted cash consists primarily of funds held to satisfy the requirements of certain debt agreements and funds held within the Company's projects that are restricted in their use.
Inventory
Inventory is valued at the lower of weighted average cost or market, and consists principally of natural gas, fuel oil, coal, spare parts and finished goods. The Company removes natural gas inventory in the delivery of goods to customers and as they are used in the production of electricity or steam. The Company removes fuel oil and coal inventories as they are used in the production of electricity. Spare parts inventory is valued at weighted average cost. The Company removes these inventories when they are used for repairs, maintenance or capital projects. The Company expects to recover the natural gas, fuel oil, coal and spare parts costs in the ordinary course of business. Inventory is valued at the lower of cost or net realizable value with cost being determined on a first in first out basis for finished goods and weighted average cost method for all other inventories. The Company removes these inventories as they are sold to customers. Sales of inventory are classified as an operating activity in the consolidated statements of cash flows.
Property, Plant and Equipment
Property, plant and equipment are stated at cost or, in the case of business acquisitions, fair value; however, impairment adjustments are recorded whenever events or changes in circumstances indicate that their carrying values may not be recoverable. NRG also classifies nuclear fuel related to the Company's 44% ownership interest in STP as part of the Company's property, plant, and equipment. Significant additions or improvements extending asset lives are capitalized as incurred, while repairs and maintenance that do not improve or extend the life of the respective asset are charged to expense as incurred. Depreciation, other than nuclear fuel, is computed using the straight-line method, while nuclear fuel is amortized based on units of production over the estimated useful lives. Certain assets and their related accumulated depreciation amounts are adjusted for asset retirements and disposals with the resulting gain or loss included in cost of operations in the consolidated statements of operations.
Asset Impairments
Long-lived assets that are held and used are reviewed for impairment whenever events or changes in circumstances indicate carrying values may not be recoverable. Such reviews are performed in accordance with ASC 360. An impairment loss is indicated if the total future estimated undiscounted cash flows expected from an asset are less than its carrying value. An impairment charge is measured by the difference between an asset's carrying amount and fair value with the difference recorded in operating costs and expenses in the consolidated statements of operations. Fair values are determined by a variety of valuation methods, including third-party appraisals, sales prices of similar assets, and present value techniques.
Investments accounted for by the equity method are reviewed for impairment in accordance with ASC 323, Investments-Equity Method and Joint Ventures, or ASC 323, which requires that a loss in value of an investment that is an other-than-temporary decline should be recognized. The Company identifies and measures losses in the value of equity method investments based upon a comparison of fair value to carrying value. For further discussion of these matters, refer to Note 11, Asset Impairments.
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Development Costs and Capitalized Interest
Development costs include project development costs, which are expensed in the preliminary stages of a project and capitalized when the project is deemed to be commercially viable. Commercial viability is determined by one or a series of actions including, among others, Board of Director approval pursuant to a formal project plan that subjects the Company to significant future obligations that can only be discharged by the use of a Company asset. When a project is available for operations, capitalized interest and capitalized project development costs are reclassified to property, plant and equipment and depreciated on a straight-line basis over the estimated useful life of the project's related assets. Capitalized costs are charged to expense if a project is abandoned or management otherwise determines the costs to be unrecoverable.
Interest incurred on funds borrowed to finance capital projects is capitalized until the project under construction is ready for its intended use. The amount of interest capitalized for the years ended December 31, 2021, 2020 and 2019, was $2 million, $2 million and $3 million, respectively.
Debt Issuance Costs
Debt issuance costs are capitalized and amortized as interest expense on a basis which approximates the effective interest method over the term of the related debt. Debt issuance costs are presented as a direct deduction from the carrying amount of the related debt, or as an asset if the issuance costs relate to revolving debt agreements or certain other financing arrangements.
Intangible Assets
Intangible assets represent contractual rights held by the Company. The Company recognizes specifically identifiable intangible assets including emission allowances, customer and supply contracts, customer relationships, marketing partnerships, trade names and fuel contracts when specific rights and contracts are acquired. These intangible assets are amortized based on expected volumes, expected delivery, expected discounted future net cash flows, straight line or units of production basis. As of December 31, 2021 and 2020, the Company had accumulated amortization related to its intangible assets of $1.6 billion and $1.4 billion, respectively.
Emission allowances held-for-sale, which are included in other non-current assets on the Company's consolidated balance sheet, are not amortized; they are carried at the lower of cost or fair value and reviewed for impairment in accordance with ASC 360.
Goodwill
In accordance with ASC 350, Intangibles-Goodwill and Other, or ASC 350, the Company recognizes goodwill for the excess cost of an acquired entity over the net value assigned to assets acquired and liabilities assumed. NRG performs goodwill impairment tests annually, during the fourth quarter, and when events or changes in circumstances indicate that the carrying value may not be recoverable.
The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The more-likely-than-not threshold is defined as having a likelihood of more than 50 percent. If it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, there is no goodwill impairment.
In the absence of sufficient qualitative factors indicating that it is more-likely-than-not that no impairment occurred, the Company performs a quantitative assessment by determining the fair value of the reporting unit and comparing the fair value to its book value. If the fair value of the reporting unit exceeds its book value, goodwill of the reporting unit is not considered impaired. If the book value exceeds fair value, the Company recognizes an impairment loss equal to the difference between book value and fair value.
For further discussion of goodwill and goodwill impairment losses recognized refer to Note 12, Goodwill and Other Intangibles.
Income Taxes
The Company accounts for income taxes using the liability method in accordance with ASC 740, Income Taxes, or ASC 740, which requires that the Company use the asset and liability method of accounting for deferred income taxes and provide deferred income taxes for all significant temporary differences.
The Company has two categories of income tax expense or benefit — current and deferred, as follows:
Current income tax expense or benefit consists solely of current taxes payable less applicable tax credits, and
Deferred income tax expense or benefit is the change in the net deferred income tax asset or liability, excluding amounts charged or credited to accumulated other comprehensive income
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The Company reports some of its revenues and expenses differently for financial statement purposes than for income tax return purposes, resulting in temporary and permanent differences between the Company's financial statements and income tax returns. The tax effects of such temporary differences are recorded as either deferred income tax assets or deferred income tax liabilities in the Company's consolidated balance sheets. The Company measures its deferred income tax assets and deferred income tax liabilities using income tax rates that are expected to be in effect when the deferred tax is realized.
The Company accounts for uncertain tax positions in accordance with ASC 740, which applies to all tax positions related to income taxes. Under ASC 740, tax benefits are recognized when it is more-likely-than-not that a tax position will be sustained upon examination by the authorities. The benefit recognized from a position is the amount of benefit that has surpassed the more-likely-than-not threshold, as it is more than 50% likely to be realized upon settlement. The Company recognizes interest and penalties accrued related to uncertain tax benefits as a component of income tax expense.
In accordance with ASC 740 and as discussed further in Note 20, Income Taxes, changes to existing net deferred tax assets or valuation allowances or changes to uncertain tax benefits, are recorded to income tax (benefit)/expense.
Contract and Emission Credit Amortization
Assets and liabilities recognized through acquisitions related to the purchase and sale of energy and energy-related products in future periods for which the fair value has been determined to be significantly less or more than market are amortized to operating revenues or cost of operations over the term of each underlying contract based on actual generation and/or contracted volumes.
Emission credits represent the right to generate a specified amount of emissions, including sulfur dioxide, nitrogen oxides and carbon dioxide, over a compliance period. Emission credits held for use are amortized to cost of operations based on the weighted average cost of the allowances held.
Lease Revenue
Certain of the Company’s revenues are obtained through leases of rooftop residential solar systems, which are accounted for as operating leases in accordance with ASC 842, Leases. Pursuant to the lease agreements, the customers’ monthly payments are pre-determined fixed monthly amounts and may include an annual fixed percentage escalation to reflect the impact of utility rate increases over the lease term, which is 20 years. The Company records operating lease revenue on a straight-line basis over the life of the lease term. Certain customers made initial down payments that are being amortized over the life of the lease. The difference between the payments received and the revenue recognized is recorded as deferred revenue.
Lessor Accounting
Certain of the Company's revenues are obtained through PPAs or other contractual agreements. Many of these agreements are accounted for as operating leases under ASC 842.
Gross Receipts and Sales Taxes
In connection with its retail sales, the Company records gross receipts taxes on a gross basis in revenues and cost of operations in its consolidated statements of operations. During the years ended December 31, 2021, 2020 and 2019, the Company's revenues and cost of operations included gross receipts taxes of $184 million, $107 million and $109 million, respectively. Additionally, the Company records sales taxes collected from its taxable retail customers and remitted to the various governmental entities on a net basis; thus, there is no impact on the Company's consolidated statement of operations.
Cost of Operations
Cost of operations includes cost of fuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization, operations and maintenance, and other cost of operations.
Cost of Fuel, Purchased Energy and Other Cost of Sales
Cost of fuel is primarily the costs associated with procurement, transportation and storage of natural gas, oil and coal to operate the generation portfolio, which is expensed as the fuel is consumed. Purchased energy primarily relates to purchases to supply the Company's customer base, which includes spot market purchases, as well as contracts of various quantities and durations, including renewable purchased power agreements under PPAs with third-party developers, which are accounted for as NPNS (see further discussion in Derivative Financial Instruments below). Other cost of sales primarily consists of TDSP expenses.
The cost of fuel is based on actual and estimated fuel usage for the applicable reporting period. The cost to deliver energy and related services to customers is based on actual and estimated supply volumes for the applicable reporting period. A portion of the cost of energy, $189 million, $98 million and $103 million as of December 31, 2021, 2020 and 2019, respectively, was accrued and consisted of estimated transmission and distribution charges not yet billed by the transmission and distribution utilities.
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In estimating supply volumes, the Company considers the effects of historical customer volumes, weather factors and usage by customer class. Transmission and distribution delivery fees are estimated using the same method used for electricity sales and services to retail customers. In addition, ISO fees are estimated based on historical trends, estimated supply volumes and initial ERCOT ISO settlements. Volume estimates are then multiplied by the supply rate and recorded as cost of operations in the applicable reporting period.
Derivative Instruments
The Company accounts for derivative instruments under ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value and changes in fair value in earnings, unless they qualify for the NPNS exception. The Company's primary derivative instruments are power and natural gas purchase or sales contracts, fuels purchase contracts and other energy related commodities used to mitigate variability in earnings due to fluctuation in market prices. In addition, in order to mitigate foreign exchange risk associated with the Company's competitive supply activities and the price risk associated with wholesale power sales frompurchase of USD denominated natural gas for the Company's electric generation facilities and retail power sales from NRG's retail businesses,Canadian business, NRG enters into foreign exchange contract agreements.
As of December 31, 2021 and 2020 the Company did not have derivative instruments that were designated as cash flow or fair value or hedge.
Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a variety of derivative and non-derivative hedging instruments, utilizingtransaction designated as NPNS no longer meets the following:
Forward contracts, which commit NRG to purchase or sell energy commodities or purchase fuels inscope exception, the future;
Futures contracts, which are exchange-traded standardized commitments to purchase or sell a commodity or financial instrument;
Swap agreements, which require payments to or from counterparties based upon the differential between two prices for a predetermined contractual, or notional, quantity;
Option contracts, which convey to the option holder the right but not the obligation to purchase or sell a commodity;
Extendable swaps, which include a combination of swaps and options executed simultaneously for different periods. This combination of instruments allows NRG to sell out-year volatility through call options in exchange for natural gas swaps with fixed prices in excessfair value of the market price for natural gas at that time. The above-market swap combined with its later-year call option are priced in aggregate at market at the trade's inception; and
Weather derivative products used to mitigate a portion of lost revenue due to weather.
The objectives for entering into derivative contracts designated as hedges include:
Fixing the price of a portion of anticipated power purchases for the Company's retail sales;
Fixing the price for a portion of anticipated future electricity sales that provides an acceptable returnrelated contract is recorded on the Company's electric generation operations;balance sheet and
Fixing the price of a portion of anticipated fuel purchases for the operation of the Company's power plants.

immediately recognized through earnings.
NRG's trading and hedging activities are subject to limits withinin accordance with the Company's Risk Management Policy. These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative financial instruments are recognized in earnings.
Mark-to-Market for Economic Hedging Activities
NRG enters into derivative instruments to manage price and delivery risk, optimize physical and contractual assets in the portfolio and manage working capital requirements. The mark-to-market for economic hedging activities are recognized to cost of operations during the reporting period.
Operations and Maintenance and Other Cost of Operations
Operations and maintenance costs include major and other routine preventative (planned outage) and corrective (forced outage) maintenance activities to ensure the safe and reliable operation of the Company's generation portfolio in compliance with all local, state and federal requirements. Operations and maintenance costs are also costs associated with retaining and maintaining the Company's customer base, such as call center support, portfolio maintenance and data analytics. Other cost of operations primarily includes gross receipts taxes, insurance, property taxes and asset retirement obligation expense.
Foreign Currency Translation and Transaction Gains and Losses
The local currencies are generally the functional currency of NRG's foreign operations. Foreign currency denominated assets and liabilities are translated at end-of-period rates of exchange. Revenues, expenses, and cash flows are translated at the weighted-average rates of exchange for the period. The resulting currency translation adjustments are not included in the Company's consolidated statements of operations for the period, but are accumulated and reported as a separate component of stockholders' equity until sale or complete or substantially complete liquidation of the net investment in the foreign entity takes place. Foreign currency transaction gains or losses are reported within other income/(expense) in the Company's consolidated statements of operations. For the years ended December 31, 2021, 2020 and 2019, amounts recognized as foreign currency transaction gains/(losses) were immaterial. The Company's cumulative translation adjustment balances as of December 31, 2021, 2020 and 2019 were $(8) million, $(2) million and $(13) million, respectively.
Concentrations of Credit Risk
Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of trust funds, accounts receivable, notes receivable, derivatives, and investments in debt securities. Trust funds are held in accounts managed by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated within entities engaged in the energy industry. These industry concentrations may impact the Company's overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. Receivables and other contractual arrangements are subject to collateral requirements under the terms of enabling agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification and creditworthiness of its customer base. See Note 5, Fair Value of Financial Instruments, for a further discussion of derivative concentrations.
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Fair Value of Financial Instruments
The carrying amount of cash and cash equivalents, funds deposited by counterparties, receivables, accounts payable, and accrued liabilities approximate fair value because of the short-term maturity of these instruments. See Note 5, Fair Value of Financial Instruments, for a further discussion of fair value of financial instruments.
Asset Retirement Obligations
The Company accounts for AROs in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can be made.
Upon initial recognition of a liability for an ARO, the Company capitalizes the asset retirement cost by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. See Note 14, Asset Retirement Obligations, for a further discussion of AROs.
Pensions and Other Postretirement Benefits
The Company offers pension benefits through a defined benefit pension plan. In addition, the Company provides postretirement health and welfare benefits for certain groups of employees. The Company accounts for pension and other postretirement benefits in accordance with ASC 715, Compensation — Retirement Benefits, or ASC 715. The Company recognizes the funded status of the Company's defined benefit plans in the statement of financial position and records an offset for gains and losses as well as all prior service costs that have not been included as part of the Company's net periodic benefit cost to other comprehensive income. The determination of the Company's obligation and expenses for pension benefits is dependent on the selection of certain assumptions. These assumptions determined by management include the discount rate, the expected rate of return on plan assets and the rate of future compensation increases. The Company's actuarial consultants assist in determining assumptions for such items as retirement age. The assumptions used may differ materially from actual results, which may result in a significant impact to the amount of pension obligation or expense recorded by the Company.
The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820.
Stock-Based Compensation
The Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's performance stock units is estimated on the date of grant using a Monte Carlo valuation model. NRG uses the Company's common stock price on the date of grant as the fair value of the Company's deferred stock units. The fair value of the Company's restricted stock units is derived from the closing price of NRG's common stock at the grant date. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award.
Investments Accounted for by the Equity Method
The Company has investments in various domestic energy projects, as well as one Australian project. The equity method of accounting is applied to such investments in affiliates, which include joint ventures and partnerships, because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of domestic partnerships and, generally, in the net income or losses of its Australian project, are reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.
Tax Equity Arrangements
The Company’s redeemable noncontrolling interest in subsidiaries represented third-party interests in the net assets under certain tax equity arrangements, which were consolidated by the Company, that had been entered into to finance the cost of solar energy systems under operating leases. The Company determined that the provisions in the contractual agreements of these structures represented substantive profit sharing arrangements. Further, the Company had determined that the appropriate methodology for calculating the redeemable noncontrolling interest that reflected the substantive profit sharing arrangements was a balance sheet approach that utilized the HLBV method. Under the HLBV method, the amounts reported as redeemable
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noncontrolling interests represented the amounts the investors that were party to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts. The investors’ interests in the results of operations of the funding structures were determined as redeemable noncontrolling interests at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds’ investors. The calculations utilized to apply the HLBV method included estimated calculations of taxable income or losses for each reporting period. During the first quarter of 2020, the Company repurchased its partners' equity interest, which was the Company's last remaining tax equity arrangement.
Redeemable Noncontrolling Interest
The following table reflects the changes in the Company's redeemable noncontrolling interest balance for the years ended December 31, 2020 and 2019.
(In millions)
Balance as of December 31, 2018$19 
Distributions to redeemable noncontrolling interest(2)
Net income attributable to redeemable noncontrolling interest - continuing operations
Balance as of December 31, 201920 
Repurchase of redeemable noncontrolling interest(20)
Balance as of December 31, 2020$
Sale-Leaseback Arrangements
NRG is party to sale-leaseback arrangements that provide for the sale of certain assets to a third party and simultaneously leases back the same asset to the Company. If the seller-lessee transfers control of the underlying assets to the buyer-lessor, the arrangement is accounted for under ASC 842-40, Sale-Leaseback Transactions. These arrangements are classified as operating leases on the Company's consolidated balance sheets. See Note 10, Leases, for further discussion.
Marketing and Advertising Costs
The Company expenses its marketing and advertising costs as incurred and includes them within selling, general and administrative expenses. The costs of tangible assets used in advertising campaigns are recorded as fixed assets or deferred advertising costs and amortized as advertising costs over the shorter of the useful life of the asset or the advertising campaign. The Company has several long-term sponsorship arrangements. Payments related to these arrangements are deferred and expensed over the term of the arrangement. Advertising expenses for the years ended December 31, 2021, 2020 and 2019 were $109 million, $74 million and $66 million, respectively.
Business Combinations
The Company accounts for its business combinations in accordance with ASC 805, Business Combinations, or ASC 805, which requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed, and any noncontrolling interest in the acquiree at fair value at the acquisition date. The Company also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination. In addition, transaction costs are expensed as incurred.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others. In addition, estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.
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Reclassifications
Certain prior period amounts have been reclassified for comparative purposes. The reclassifications did not affect results from operations, net assets or cash flows.
Recent Accounting Developments - Guidance Adopted in 2021
ASU 2019-12 — In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, or ASU 2019-12, to simplify various aspects related to accounting for income taxes. The guidance in ASU 2019-12 amends the general principles in Topic 740 to eliminate certain exceptions for recognizing deferred taxes for investment, performing intraperiod allocation and calculating income taxes in interim periods. This ASU also includes guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company adopted the amendments effective January 1, 2021 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, statements of cash flows, or statement of financial position.
ASU 2021-10 — In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 832):Disclosures by Business Entities about Government Assistance, which requires additional disclosures for transactions with a government accounted for by applying a grant or contribution model by analogy, including: (i) the nature of the transactions and the related accounting policy used to account for the transactions; (ii) the line items on the balance sheet and income statement that are affected by the transactions, and the amounts applicable to each financial statement line item; and (iii) significant terms and conditions of the transactions, including commitments and contingencies. The amendments were applied prospectively to all transactions within the scope of the amendments. Early application of the new standard is permitted and the effect of the new standard only impacted the Company’s financial statement disclosures.
Recent Accounting Developments - Guidance Not Yet Adopted
ASU 2020-06 — In August 2020, the FASB issued ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40), or ASU 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 using the modified retrospective approach. As a result of the provisions of the amended guidance, the Company estimates a $100 million decrease to additional paid-in capital, a $57 million decrease to debt discount, a $57 million increase to retained earnings, and a $14 million decrease to long-term deferred tax liabilities. The Company does not expect the adoptions of ASU 2020-06 to have a material impact on its statement of operations, statements of cash flows or earnings per share amounts.
ASU 2021-08 — In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, or ASU 2021-08. Under current GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers and other similar contracts that are accounted for in accordance with ASC 606, Revenue from Contracts with Customers, or ASC 606, at fair value on the acquisition date. ASU 2021-08 requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606. At the acquisition date, an acquirer should account for the related revenue contracts in accordance with ASC 606 as if it had originated the contracts, which should generally result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements. This update also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years and should be applied prospectively to business combinations occurring on or after the effective date of the amendments. Early adoption is permitted, including adoption in an interim period. Adoption during an interim period requires retrospective application to all business combinations for which the acquisition date occurs on or after the beginning of the fiscal year that includes the interim period of early application and prospectively to all business combinations that occur on or after the date of initial application. The Company does not expect the adoption of ASU 2021-08 to have a material impact on the consolidated financial statements and disclosures.



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Note 3Revenue Recognition
The Company's policies with respect to its various revenue streams are detailed below. The Company generally applies the invoicing practical expedient to recognize revenue for the revenue streams detailed below, except in circumstances where the invoiced amount does not represent the value transferred to the customer.
Retail Revenue
Gross revenues for energy sales and services to retail customers are recognized as the Company transfers the promised goods and services to the customer. For the majority of its electricity and natural gas contracts, the Company’s performance obligation with the customer is satisfied over time and performance obligations for its electricity and natural gas products are recognized as the customer takes possession of the product. The Company also allocates the contract consideration to distinct performance obligations in a contract for which the timing of the revenue recognized is different. Additionally, customer discounts and incentives reduce the contract consideration and are recognized over the term of the contract.
Energy sales and services that have been delivered but not billed by period end are estimated. Accrued unbilled revenues are based on estimates of customer usage since the date of the last meter reading provided by the independent system operators, utilities, or electric distribution companies. Volume estimates are based on daily forecasted volumes and estimated customer usage by class. Unbilled revenues are calculated by multiplying these volume estimates by the applicable rate by customer class. Estimated amounts are adjusted when actual usage is known and billed.
As contracts for retail electricity and natural gas can be for multi-year periods, the Company has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other contract-specific factors. For the fixed price contracts, the amount of any unsatisfied performance obligations will vary based on customer usage, which will depend on factors such as weather and customer activity and therefore it is not practicable to estimate such amounts.
Energy Revenue
Both physical and financial transactions consist of revenues billed to a third party at either market or negotiated contract terms to optimize the financial performance of the Company's generating facilities. Electric energy revenue is recognized upon transmission to the customer over time, using the output method for measuring progress of satisfaction of performance obligations. Physical transactions, or the sale of generated electricity to meet supply and demand, are recorded on a gross basis in the Company's consolidated statements of operations. The Company applies the invoicing practical expedient in recognizing energy revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date. Financial transactions used to hedge the sale of electricity are recorded net within operating revenues in the consolidated statements of operations in accordance with ASC 815.
Ancillary revenues, included in Other revenue, are recognized over time as the obligation is fulfilled, using the output method for measuring progress of satisfaction of performance obligations.
CapacityRevenue
The Company's largest sources of capacity revenues are capacity auctions in PJM, ISO-NE and NYISO. Capacity revenues also include revenues billed to a third party at either market or negotiated contract terms for making installed generation and demand response capacity available in order to satisfy system integrity and reliability requirements. Capacity revenues are recognized over time, using the output method for measuring progress of satisfaction of performance obligations. The Company applies the invoicing practical expedient in recognizing capacity revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date.
Performance Obligations
As of December 31, 20182021, estimated future fixed fee performance obligations are $258 million, $48 million and $1 million for fiscal years 2022, 2023 and 2024, respectively. These performance obligations are for cleared auction MWs in the PJM, ISO-NE, NYISO and MISO capacity auctions and are subject to penalties for non-performance.
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Disaggregated Revenue
The following tables represent the Company’s disaggregation of revenue from contracts with customers for the years ended December 31, 2021, 2020 and 2019:
For the Year Ended December 31, 2021
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,665 $1,959 $2,053 $(1)$9,676 
Business2,745 9,903 1,237 — 13,885 
Total retail revenue8,410 11,862 3,290 (1)23,561 
Energy revenue(c)
329 508 371 1,215 
Capacity revenue(c)
— 718 57 — 775 
Mark-to-market for economic hedging activities(d)
(3)(88)(86)13 (164)
Contract amortization— (26)(4)— (30)
Other revenue(b)(c)
1,557 59 25 (9)1,632 
Total operating revenue10,293 13,033 3,653 10 26,989 
Less: Lease revenue— — 
Less: Realized and unrealized ASC 815 revenue130 184 (96)16 234 
Less: Contract amortization— (26)(4)— (30)
Total revenue from contracts with customers$10,163 $12,874 $3,746 $(6)$26,777 
(a) Home includes Services
(b) Other Revenue in Texas includes ancillary revenues of $1.3 billion driven by high pricing during Winter Storm Uri
(c) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $131 $$$136 
Capacity revenue— 149 — — 149 
Other revenue133 (8)(12)— 113 
(d) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
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For the Year Ended December 31, 2020
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,210 $96 $(2)$6,331 
Business1,034 95 — — 1,129 
Total retail revenue6,061 1,305 96 (2)7,460 
Energy revenue(b)
24 183 333 (1)539 
Capacity revenue(b)
— 620 61 (1)680 
Mark-to-market for economic hedging activities(c)
88 (3)95 
Other revenue(b)
222 62 43 (8)319 
Total operating revenue6,309 2,258 530 (4)9,093 
Less: Lease revenue— 17 — 18 
Less: Realized and unrealized ASC 815 revenue30 314 38 385 
Total revenue from contracts with customers$6,279 $1,943 $475 $(7)$8,690 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $67 $43 $(5)$105 
Capacity revenue— 156 — — 156 
Other revenue28 (2)— 29 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
For the Year Ended December 31, 2019
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,173 $57 $(3)$6,254 
Business1,205 74 — — 1,279 
Total retail revenue6,232 1,247 57 (3)7,533 
Energy revenue(b)
529 322 318 — 1,169 
Capacity revenue(b)
— 664 36 — 700 
Mark-to-market for economic hedging activities(c)
47 (29)16 (1)33 
Other revenue(b)
261 58 70 (3)386 
Total operating revenue7,069 2,262 497 (7)9,821 
Less: Lease revenue— 19 — 20 
Less: Realized and unrealized ASC 815 revenue1,562 183 67 (2)1,810 
Total revenue from contracts with customers$5,507 $2,078 $411 $(5)$7,991 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$1,459 $98 $39 $(1)$1,595 
Capacity revenue— 109 — — 109 
Other revenue56 12 — 73 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

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ContractBalances
The following table reflects the contract assets and liabilities included in the Company's balance sheet as of December 31, 2021 and 2020:
(In millions)December 31, 2021December 31, 2020
Deferred customer acquisition costs$133 $113 
Accounts receivable, net - Contracts with customers3,057 866 
Accounts receivable, net - Derivative instruments182 33 
Accounts receivable, net - Affiliate
Total accounts receivable, net$3,245 $904 
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)$1,574 $393 
Deferred revenues (a)
$227 $60 
(a) Deferred revenues from contracts with customers for the years ended December 31, 2021 and 2020 were approximately $224 million and $31 million, respectively
The revenue recognized from contracts with customers during the years ended December 31, 2021 and 2020 relating to the deferred revenue balance at the beginning of each period was $23 million and $13 million, respectively. The change in deferred revenue balances during the years ended December 31, 2021 and 2020 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.
The Company's customer acquisition costs consist of broker fees, commission payments and other costs that represent incremental costs of obtaining the contract with customers for which the Company expects to recover. The Company amortizes these amounts over the estimated life of the customer contract. As a practical expedient, the Company expenses the incremental costs of obtaining a contract if the amortization period of the asset would have been one year or less.
When the Company receives consideration from the customer that is in excess of the amount due, such consideration is reclassified to deferred revenue, which represents a contract liability. Generally, the Company will recognize revenue from contract liabilities in the next period as the Company satisfies its performance obligations.

Note 4 —Acquisitions, Discontinued Operations and Dispositions
Acquisitions
Direct Energy Acquisition
On January 5, 2021 (the "Acquisition Closing Date"), the Company acquired all of the issued and outstanding common shares of Direct Energy, which had been a North American subsidiary of Centrica plc. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increased NRG's retail portfolio by over 3 million customers and strengthens its integrated model. It also broadens the Company's presence in the Northeast and into states and locales where it did not previously operate, supporting NRG's objective to diversify its business.
The Company paid an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment of $77 million. The Company funded the purchase price using a combination of $715 million of cash on hand, $166 million from a draw on its Revolving Credit Facility (of which $107 million was used to fund acquisition costs and financing fees that are not included in the aggregate purchase price above) as well as approximately $2.9 billion in secured and unsecured corporate debt issued in December 2020. The final purchase price adjustment resulted in additional payment of $22 million, which was paid in December 2021.
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The Company also increased its collective collateral facilities by $3.4 billion as of the Acquisition Closing Date to meet the additional liquidity requirements related to the acquisition, as detailed in the following table:
(In millions)
Available on Acquisition Closing Date
Revolving Credit Facility commitment increase$802 
Revolving Credit Facility new tranche273
Facility agreement in connection with the sale of pre-capitalized trust securities874
Available as of December 31, 2020
Credit default swap facility150
Revolving accounts receivable financing facility750
Repurchase facility75
Bilateral letter of credit facilities475
Total Increases to Liquidity and Collateral Facilities$3,399 
For further discussion see Note 13, Long-term Debt and Finance Leases.
Acquisition costs of $25 million and $17 million for the years ended December 31, 2021 and 2020, respectively, are included in acquisition-related transaction and integration costs in the Company's consolidated statement of operations.
The acquisition has been recorded as a business combination under ASC 805 with identifiable assets acquired and liabilities assumed recorded at their estimated fair values on the acquisition date. The purchase price is allocated as follows:
(In millions)
Current Assets
Cash and cash equivalents$152 
Funds deposited by counterparties21 
Restricted cash
Accounts receivable, net1,802 
Inventory106 
Derivative instruments1,014 
Cash collateral paid in support of energy risk management activities233 
Prepayments and other current assets173 
Total current assets3,510 
Property, plant and equipment, net151 
Other Assets
Goodwill(a)
1,250 
Intangible assets, net:
    Customer relationships(b)
1,277 
    Customer and supply contracts(b)
610 
    Trade names(b)
310 
    Renewable energy credits124 
Total intangible assets, net2,321 
Derivative instruments531 
Other non-current assets31 
Total other assets4,133 
Total Assets$7,794 
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(In millions)
Current Liabilities
Accounts payable$1,116 
Derivative instruments1,266 
Cash collateral received in support of energy risk management activities21 
Accrued expenses and other current liabilities670 
Total current liabilities3,073 
Other Liabilities
Derivative instruments562 
Deferred income taxes320 
Other non-current liabilities115 
Total other liabilities997 
Total Liabilities$4,070 
Direct Energy Purchase Price$3,724 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Direct Energy with NRG's existing businesses. Goodwill was allocated to the Texas, East, and West/Services/Other segments of $427 million, $648 million , and $175 million, respectively. Goodwill expected to be deductible for tax purposes is $322 million
(b)The weighted average amortization period for total amortizable intangible assets is 12 years

Measurement Period Adjustments
The following measurement period adjustments were recognized during the quarter ended December 31, 2021:
(In millions)
Assets
Prepayments and other current assets$(10)
Goodwill(7)
    Total decrease in assets$(17)
Liabilities
Accounts payable$(4)
Accrued expenses and other current liabilities(20)
Deferred income taxes(18)
   Total decrease in liabilities$(42)
Net measurement period adjustments$25 
The measurement period adjustments are attributable primarily to refinement of the underlying assumptions used to estimate the fair value of assets acquired and liabilities assumed as more information was obtained about facts and circumstances that existed as of the Acquisition Closing Date.
Fair Value Measurement of Intangible Assets
The fair values of intangible assets as of the Acquisition Closing Date were measured primarily based on significant inputs that are observable and unobservable in the market and thus represent Level 2 and Level 3 measurements, respectively. Significant inputs were as follows:
Customer relationships Customer relationships, reflective of Direct Energy’s customer base, were valued using an excess earning method of the income approach. Under this approach, the Company estimated the present value of expected future cash flows resulting from existing customer relationships, considering attrition and charges for contributory assets (such as net working capital, fixed assets, workforce and trade names) utilized in the business, discounted at an independent power producer peer group’s weighted average cost of capital. The customer relationships are amortized to depreciation and amortization, ratably based on discounted future cash flows. The weighted average amortization period is 12 years.
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Customer and supply contracts The fair value of in-market and out-of-market customer and supply contracts were estimated based on contractual terms compared to market prices as of the Acquisition Closing Date. The majority of the contracts were valued using prices provided by external sources, primarily price quotations available through broker or over-the-counter and online exchanges. For contracts for which external sources or observable market quotes were not available, these values were based on valuation techniques including, but not limited to, internal models based on fundamental analysis of the market and extrapolation of the observable market data with similar characteristics. In addition, the Company applied a credit reserve to reflect credit risk, which is calculated based on published default probabilities. The customer and supply contracts are amortized to revenue and cost of operations, respectively, based upon the fair market value, as of the acquisition date, for each delivery month. The weighted average amortization period is 14 years.
Trade names Trade names were valued using a "relief from royalty" method of the income approach. Under this approach, the fair value is estimated to be the present value of royalties saved because NRG owns the intangible asset and therefore does not have to pay a royalty for its use. The trade names are amortized to depreciation and amortization, on a straight line basis, over a weighted average amortization period of 15 years.
Renewable energy credits Renewable energy credits were valued based on the market prices as of the Acquisition Closing Date. Renewable energy credits are retired, as required, for the applicable compliance period. They are expensed to cost of operations based on customer usage.
Fair Value Measurement of Derivative Assets and Liabilities
The fair values of derivatives assets and liabilities as of the Acquisition Closing Date were as follows:
Fair Value
(In millions)TotalLevel 1Level 2Level 3
Derivatives assets$1,545 $155 $1,272 $118 
Derivatives liabilities1,828 207 1,489 132 
Refer to Note 5, Fair Value of Financial Instruments for discussion on derivative fair value measurements.
Supplemental Information
For the Year Ended December 31, 2021 Direct Energy contributed revenue and income before income taxes of $15.6 billion and $2.4 billion, respectively.
Supplemental Unaudited Pro Forma Financial Information
The following table provides unaudited pro forma combined financial information of NRG and Direct Energy, after giving effect to the Direct Energy acquisition and related financing transactions as if they had occurred on January 1, 2019. The pro forma financial information has been prepared for illustrative and informational purposes only, and is not intended to project future operating results or indicative of what our financial performance would have been had the transactions occurred on the date assumed. No effect has been given to operating synergies.
For the Year Ended December 31,
(In millions)202120202019
Total operating revenues$26,987 $21,326 $23,673 
Income from continuing operations2,225 471 3,623 

Amounts above reflect certain pro forma adjustments that were directly attributable to the Direct Energy acquisition. These adjustments include the following:
(i) Income statement effects of fair value adjustments based on the purchase price allocation including amortization of intangible assets, depreciation of property, plant and equipment and lease expense.
(ii) Interest expense assumes the financing transactions directly attributable to the Direct Energy acquisition occurred on January 1, 2019.
(iii) Removal of Direct Energy historical interest expense associated with related party notes receivable/payable between Direct Energy and Centrica and its subsidiaries, as those notes are assumed to be repaid as of January 1, 2019.
(iv) Elimination of transactions between NRG and Direct Energy.
(v) Adjustments to reflect all acquisition costs occurring during the year ended December 31, 2019.
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(vi) Tax effects of pro forma adjustments on all periods presented and shifting the recognition of one time tax benefits resulting from the acquisition from the year ended December 31, 2021 to the year ended December 31, 2019.
Midwest Generation Lease PurchaseOn September 29, 2020, Midwest Generation acquired all of the ownership interests in the Powerton facility and Units 7 and 8 of the Joliet facility, which were being leased through 2034 and 2030, respectively, for approximately $260 million. The purchase was funded with cash-on-hand. Upon closing, lease expense related to these facilities, which totaled approximately $14 million in 2019, and the operating lease liability of $148 million were eliminated.
Stream Energy Acquisition — On August 1, 2019, the Company completed the acquisition of Stream Energy's retail electricity and natural gas business operating in 9 states and Washington, D.C. for $329 million, including working capital and other adjustments of approximately $29 million. The acquisition increased NRG's retail portfolio by approximately 600,000 RCEs or 450,000 customers.
The purchase price was allocated as follows:
(In millions)
Account receivable$98 
Accounts payable(73)
Other net current and non-current working capital
Marketing partnership154 
Customer relationships85 
Trade name28 
Other intangible assets26 
Goodwill (a)
 Stream Purchase Price$329 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Stream Energy with NRG's existing businesses. Goodwill of $5 million and $1 million was assigned to the Texas and East segments, respectively, and is not deductible for tax purposes
Dispositions
Sale of 4,850 MW of Fossil generating assets
On December 1, 2021, the Company closed the previously announced sale of approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. Proceeds of $760 million were reduced by working capital and other adjustments of $137 million, resulting in net proceeds of $623 million. The Company recorded a gain of $210 million from the sale, which includes the $39 million indemnification liability recorded as discussed below. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
As part of the agreement to sell the fossil generating assets, NRG has agreed to indemnify Generation Bridge for certain future environmental compliance costs up to $39 million. The indemnity term will expire on December 1, 2028. The Company has recorded the liability within accrued expenses and other current liabilities and other non-current liabilities.
Sale of Agua Caliente
On February 3, 2021, the Company closed on the sale of its 35% ownership in the Agua Caliente solar project to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including cash disposed of $7 million.
Sale of Home Solar
In the third quarter of 2020, the Company concluded its Home Solar business was held for sale and recorded an impairment loss of $29 million, as further discussed in Note 11, Asset Impairments. On November 13, 2020, the Company completed the sale of the Home Solar business for cash proceeds of $66 million, resulting in a $2 million loss on the sale. In connection with the sale, the Company extinguished debt of $27 million and recognized a $5 million loss on the extinguishment.
Company completed other asset sales for cash proceeds of $12 million and $15 million during the years ended December 31, 2021 and 2020, respectively.
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Discontinued Operations
Sale of South Central Portfolio
On February 4, 2019, the Company completed the sale of its South Central Portfolio to Cleco for cash consideration of $1 billion excluding working capital and other adjustments. The Company concluded that the divested business met the criteria for discontinued operations, as the disposition represented a strategic shift in the business in which NRG operates. In connection with the transaction, NRG also entered into a transition services agreement to provide certain corporate services to the divested business, which have been substantially completed in 2020.
The South Central Portfolio includes the 1,177 MW Cottonwood natural gas generating facility. Upon the closing of the sale of the South Central Portfolio, NRG entered into a lease agreement with Cleco to leaseback the Cottonwood facility through 2025. Due to its continuing involvement with the Cottonwood facility, NRG did not use held-for-sale or discontinued operations treatment in accounting for the Cottonwood facility.
Summarized results of South Central discontinued operations for the year ended December 31, 2019 were as follows:
(In millions)
Operating revenues$31 
Operating costs and expenses(23)
Gain from operations of discontinued components8
Gain on disposal of discontinued operations, net of tax20 
Gain from discontinued operations, including disposal, net of tax$28
Sale of Ownership in NRG Yield, Inc. and its Renewables Platform
On August 31, 2018, the Company completed the sale of its ownership interests in NRG Yield, Inc. and its Renewables Platform to GIP for total cash consideration of $1.348 billion. The Company concluded that the divested businesses met the criteria for discontinued operations, as the dispositions represented a strategic shift in the business in which NRG operates. In connection with the transaction, NRG entered into a transition services agreement to provide certain corporate services to the divested businesses in 2018, which concluded in 2020. During the year ended December 31, 2019, the Company recorded an adjustment to reduce the purchase price by $15 million in connection with the completion of the Patriot Wind project. During the year ended December 31, 2019, the Company reduced the liability related to the indemnification of NRG Yield for any increase in property taxes for certain solar properties by $22 million due to updated estimates.
Carlsbad
On February 6, 2018, NRG entered into an agreement with NRG Yield and GIP to sell 100% of its membership interests in Carlsbad Energy Holdings LLC, which owns the Carlsbad project, for $385 million of cash consideration, excluding working capital adjustments. The primary condition to close the Carlsbad transaction was the completion of the sale of NRG Yield and the Renewables Platform.At the time of the sale of NRG Yield and the Renewables Platform in August 2018, the Company concluded that the Carlsbad project met the criteria for discontinued operations and accordingly, all current and prior period results for Carlsbad were reclassified as discontinued operations. The transaction closed on February 27, 2019. Carlsbad will continue to have a ground lease and easement agreement with NRG with an initial term ending in 2039 and 2 ten-year extensions. As a result of the transaction, additional commitments related to the project totaled $23 million as of December 31, 2021 and December 31, 2020.
Summarized results of NRG Yield, Inc. and Renewables Platform and Carlsbad discontinued operations for the year ended December 31, 2019 were as follows:
(In millions)
Operating revenues$19 
Operating costs and expenses(9)
Other expenses(5)
Gain/(loss) from discontinued operations, net of tax5
Gain/(loss) on disposal of discontinued operations, net of tax265 
Income/(expense) from California property tax indemnification22 
Income/(expense) from other commitments, indemnification and fees
Income/(loss) on disposal of discontinued operations, net of tax291
Income/(loss) from discontinued operations, net of tax$296
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GenOn
On June 14, 2017, the GenOn Entities filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the Texas Bankruptcy Court. As a result of the bankruptcy filings, NRG concluded that it no longer controlled GenOn as it was subject to the control of the Texas Bankruptcy Court; and accordingly, NRG deconsolidated GenOn and its subsidiaries for financial reporting purposes as of such date. For the Year Ended December 31, 2019 NRG recorded $3 million loss from discontinued operations, net of tax for GenOn results of operations.

Note 5 — Fair Value of Financial Instruments
For cash and cash equivalents, funds deposited by counterparties, restricted cash, accounts and other receivables, accounts payable, restricted cash, and cash collateral paid and received in support of energy risk management activities, the carrying amount approximates fair value because of the short-term maturity of those instruments and are classified as Level 1 within the fair value hierarchy.
The estimated carrying value and fair value of the Company's long-term debt, including current portion, is as follows:
 As of December 31,
20212020
(In millions)Carrying AmountFair ValueCarrying AmountFair Value
Long-term debt, including current portion (a)
$8,040 $8,327 $8,781 $9,446 
(a) Excludes deferred financing costs, which are recorded as a reduction to long-term debt on the Company's consolidated balance sheets
The fair value of the Company's publicly-traded long-term debt is based on quoted market prices and is classified as Level 2 within the fair value hierarchy.
Fair Value Accounting under ASC 820
ASC 820 establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows:
Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access as of the measurement date. NRG's financial assets and liabilities utilizing Level 1 inputs include active exchange-traded securities, energy derivatives, and trust fund investments.
Level 2 — inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data. NRG's financial assets and liabilities utilizing Level 2 inputs include fixed income securities, exchange-based derivatives, and over the counter derivatives such as swaps, options and forward contracts.
Level 3 — unobservable inputs for the asset or liability only used when there is little, if any, market activity for the asset or liability at the measurement date. NRG's financial assets and liabilities utilizing Level 3 inputs include infrequently-traded, non-exchange-based derivatives and commingled investment funds, and are measured using present value pricing models.
In accordance with ASC 820, the Company determines the level in the fair value hierarchy within which each fair value measurement in its entirety falls, based on the lowest level input that is significant to the fair value measurement in its entirety.
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Recurring Fair Value Measurements
Debt securities, equity securities, and trust fund investments, which are comprised of various U.S. debt and equity securities, and derivative assets and liabilities, consisted primarilyare carried at fair market value.
The following tables present assets and liabilities measured and recorded at fair value on the Company's consolidated balance sheets on a recurring basis and their level within the fair value hierarchy:
 As of December 31, 2021
 Fair Value
(In millions)TotalLevel 1Level 2Level 3
Investments in securities (classified within other current and non-current assets)$32 $15 $17 $— 
Nuclear trust fund investments: 
Cash and cash equivalents33 33 — — 
U.S. government and federal agency obligations112 111 — 
Federal agency mortgage-backed securities100 — 100 — 
Commercial mortgage-backed securities44 — 44 — 
Corporate debt securities122 — 122 — 
Equity securities494 494 — — 
Foreign government fixed income securities— — 
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations— — 
Derivative assets: 
Foreign exchange contracts— — 
Commodity contracts7,139 981 5,701 457 
Measured using net asset value practical expedient:
Equity securities-nuclear trust fund investments99 000
Equity securities (classified within other non-current assets)000
Total assets$8,188 $1,635 $5,990 $457 
Derivative liabilities: 
Foreign exchange contracts$$— $$— 
Commodity contracts$4,798 $626 $4,008 $164 
Total liabilities$4,799 $626 $4,009 $164 
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 As of December 31, 2020
 Fair Value
(In millions)TotalLevel 1Level 2Level 3
Investments in securities (classified within other current or non-current assets)$25 $10 $15 $— 
Nuclear trust fund investments:
Cash and cash equivalents23 23 — — 
U.S. government and federal agency obligations70 69 — 
Federal agency mortgage-backed securities89 — 89 — 
Commercial mortgage-backed securities36 — 36 — 
Corporate debt securities144 — 144 — 
Equity securities434 434 — — 
Foreign government fixed income securities— 
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations— — 
Derivative assets:
Commodity contracts821 59 623 139 
Measured using net asset value practical expedient:
Equity securities-nuclear trust fund investments87 000
Equity securities (classified within other non-current assets)000
Total assets$1,745 $597 $914 $139 
Derivative liabilities:
Commodity contracts$884 $86 $643 $155 
Total liabilities$884 $86 $643 $155 

The following tables reconcile, for the years ended December 31, 2021 and 2020, the beginning and ending balances for financial instruments that are recognized at fair value in the consolidated financial statements at least annually using significant unobservable inputs:
For the Year Ended December 31, 2021
Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(In millions)
Derivatives (a)
Beginning balance as of January 1, 2021$(16)
Contracts added from Direct Energy acquisition(15)
Total gains realized/unrealized included in earnings145 
Purchases93 
Transfers into Level 3 (b)
71 
Transfers out of Level 3 (b)
15 
Ending balance as of December 31, 2021$293 
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of December 31, 2021$120 
(a)Consists of derivatives assets and liabilities, net
(b)Transfers into/out of Level 3 are related to the availability of external broker quotes, and are valued as of the following:end of the reporting period. All transfers into/out of Level 3 are from/to Level 2
Forward
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For the Year Ended December 31, 2020
Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(In millions)
Derivatives (a)
Beginning balance as of January 1, 2020$38 
Total (losses) realized/unrealized included in earnings(44)
Purchases(13)
Transfers into Level 3 (b)
Transfers out of Level 3 (b)
Ending balance as of December 31, 2020$(16)
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of December 31, 2020$
(a)Consists of derivatives assets and liabilities, net
(b)Transfers into/out of Level 3 are related to the availability of external broker quotes, and are valued as of the end of the reporting period. All transfers into/out of Level 3 are from/to Level 2
Realized and unrealized gains and losses included in earnings that are related to the energy derivatives are recorded in operating revenues and cost of operations.
Non-derivative fair value measurements
NRG's investments in debt securities are classified as Level 3 and consist of non-traded debt instruments that were valued based on third-party market value assessments.
The trust fund investments are held primarily to satisfy NRG's nuclear decommissioning obligations. These trust fund investments hold debt and equity securities directly and equity securities indirectly through commingled funds. The fair values of equity securities held directly by the trust funds are based on quoted prices in active markets and are categorized in Level 1. In addition, U.S. government and federal agency obligations are categorized as Level 1 because they trade in a highly liquid and transparent market. The fair values of corporate debt securities are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized in Level 2. Certain equity securities, classified as commingled funds, are analogous to mutual funds, are maintained by investment companies, and hold certain investments in accordance with a stated set of fund objectives. The fair value of the equity securities classified as commingled funds are based on net asset values per fund share (the unit of account), derived from the quoted prices in active markets of the underlying equity securities. However, because the shares in the commingled funds are not publicly quoted, not traded in an active market and are subject to certain restrictions regarding their purchase and sale, the commingled funds are measured using net asset value practical expedient. See also Note 7, Nuclear Decommissioning Trust Fund.
Derivative fair value measurements
A portion of the Company's contracts are exchange-traded contracts with readily available quoted market prices. A majority of NRG's contracts are non-exchange-traded contracts valued using prices provided by external sources, primarily price quotations available through brokers or over-the-counter and on-line exchanges. For the majority of NRG markets, the Company receives quotes from multiple sources. To the extent that NRG receives multiple quotes, the Company's prices reflect the average of the bid-ask mid-point prices obtained from all sources that NRG believes provide the most liquid market for the commodity. If the Company receives one quote, then the mid-point of the bid-ask spread for that quote is used. The terms for which such price information is available vary by commodity, region and product. A significant portion of the fair value of the Company's derivative portfolio is based on price quotes from brokers in active markets who regularly facilitate those transactions and the Company believes such price quotes are executable. The Company does not use third party sources that derive price based on proprietary models or market surveys. The remainder of the assets and liabilities represents contracts for which external sources or observable market quotes are not available. These contracts are valued based on various valuation techniques including but not limited to internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Contracts valued with prices provided by models and other valuation techniques make up 6% of derivative assets and 3% of derivative liabilities. The fair value of each contract is discounted using a risk free interest rate. In addition, the Company applies a credit reserve to reflect credit risk, which for foreign exchange contracts and interest rate swaps is calculated utilizing the bilateral method based on published default probabilities. For commodities, to the extent that NRG's net exposure under a specific master agreement is an asset, the Company uses the counterparty's default swap rate. If the exposure under a specific master agreement is a liability, the Company uses NRG's default swap rate. For foreign exchange contracts, interest rate swaps and commodities, the credit reserve is added to the
113


discounted fair value to reflect the exit price that a market participant would be willing to receive to assume NRG's liabilities or that a market participant would be willing to pay for NRG's assets. As of December 31, 2021 the credit reserve resulted in a $11 million decrease primarily within cost of operations. As of December 31, 2020 the credit reserve resulted in $2 million increase primarily within cost of operations.
The fair values in each category reflect the level of forward prices and volatility factors as of December 31, 2021, and may change as a result of changes in these factors. Management uses its best estimates to determine the fair value of commodity and derivative contracts NRG holds and sells. These estimates consider various factors including closing exchange and over-the-counter price quotations, time value, volatility factors and credit exposure. It is possible, however, that future market prices could vary from those used in recording assets and liabilities from energy marketing and trading activities and such variations could be material.
NRG's significant positions classified as Level 3 include physical and financial contractsnatural gas and power executed in illiquid markets as well as financial transmission rights, or FTRs. The significant unobservable inputs used in developing fair value include illiquid natural gas and power location pricing which is derived as a basis to liquid locations. The basis spread is based on observable market data when available or derived from historic prices and forward market prices from similar observable markets when not available. For FTRs, NRG uses the most recent auction prices to derive the fair value.
The following tables quantify the significant unobservable inputs used in developing the fair value of the Company's Level 3 positions as of December 31, 2021 and 2020:
Significant Unobservable Inputs
December 31, 2021
Fair ValueInput/Range
(In millions)AssetsLiabilitiesValuation TechniqueSignificant Unobservable InputLowHighWeighted Average
Natural Gas Contracts$16 $Discounted Cash FlowForward Market Price (per MMBtu)$$40 $15 
Power Contracts392 121 Discounted Cash FlowForward Market Price (per MWh)212 35 
FTRs49 42 Discounted Cash FlowAuction Prices (per MWh)(122)43 
$457 $164 
Significant Unobservable Inputs
December 31, 2020
Fair ValueInput/Range
(In millions)AssetsLiabilitiesValuation TechniqueSignificant Unobservable InputLowHighWeighted Average
Power Contracts$111 $143 Discounted Cash FlowForward Market Price (per MWh)$10 $105 $21 
FTRs28 12 Discounted Cash FlowAuction Prices (per MWh)(28)43 
$139 $155 
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The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable inputs as of December 31, 2021 and 2020:
Significant Unobservable InputPositionChange In InputImpact on Fair Value Measurement
Forward Market Price Natural Gas/ PowerBuyIncrease/(Decrease)Higher/(Lower)
Forward Market Price Natural Gas/PowerSellIncrease/(Decrease)Lower/(Higher)
FTR PricesBuyIncrease/(Decrease)Higher/(Lower)
FTR PricesSellIncrease/(Decrease)Lower/(Higher)
Under the guidance of ASC 815, entities may choose to offset cash collateral posted or received against the fair value of derivative positions executed with the same counterparties under the same master netting agreements. The Company has chosen not to offset positions as defined in ASC 815. As of December 31, 2021, the Company recorded $291 million of cash collateral posted and $845 million of cash collateral received on its balance sheet.
Concentration of Credit Risk
In addition to the credit risk discussion as disclosed in Note 2, Summary of Significant Accounting Policies, the following item is a discussion of the concentration of credit risk for the purchase/saleCompany's financial instruments. Credit risk relates to the risk of loss resulting from non-performance or non-payment by counterparties pursuant to the terms of their contractual obligations. The Company monitors and manages credit risk through credit policies that include: (i) an established credit approval process; (ii) a daily monitoring of counterparties' credit limits; (iii) the use of credit mitigation measures such as margin, collateral, prepayment arrangements, or volumetric limits; (iv) the use of payment netting agreements; and (v) the use of master netting agreements that allow for the netting of positive and negative exposures of various contracts associated with a single counterparty. Risks surrounding counterparty performance and credit could ultimately impact the amount and timing of expected cash flows. The Company seeks to mitigate counterparty risk by having a diversified portfolio of counterparties. The Company also has credit protection within various agreements to call on additional collateral support if and when necessary. Cash margin is collected and held at the Company to cover the credit risk of the counterparty until positions settle.
Counterparty Credit Risk
As of December 31, 2021, counterparty credit exposure, excluding credit exposure from RTOs, ISOs, and registered commodity exchanges and certain long-term agreements, was $2.2 billion and NRG held collateral (cash and letters of credit) against those positions of $598 million, resulting in a net exposure of $1.6 billion. NRG periodically receives collateral from counterparties in excess of their exposure. Collateral amounts shown include such excess while net exposure shown excludes excess collateral received. Approximately 87% of the Company's exposure before collateral is expected to roll off by the end of 2023. Counterparty credit exposure is valued through observable market quotes and discounted at a risk free interest rate. The following tables highlight net counterparty credit exposure by industry sector and by counterparty credit quality. Net counterparty credit exposure is defined as the aggregate net asset position for NRG with counterparties where netting is permitted under the enabling agreement and includes all cash flow, mark-to-market and NPNS, and non-derivative transactions. The exposure is shown net of collateral held, and includes amounts net of receivables or payables.
Category
Net Exposure (a) (b)
(% of Total)
Utilities, energy merchants, marketers and other67 %
Financial institutions33 
Total100 %
Category
Net Exposure (a) (b)
(% of Total)
Investment grade55 %
Non-Investment grade/Non-Rated45 
Total100 %
(a)Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices
(b)The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long term contracts
The Company currently has no exposure to wholesale counterparties in excess of 10% of the total net exposure discussed above as of December 31, 2021. Changes in hedge positions and market prices will affect credit exposure and counterparty concentration.
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During Winter Storm Uri, the Company experienced nonperformance by a counterparty in one of its bilateral financial hedging transactions, resulting in exposure of $403 million. The Company is pursuing all means available to enforce its rights under this transaction but, given the size of the exposure, cannot determine with certainty what the amount of its ultimate recovery will be. The full exposure was recorded as a provision for credit losses during the year ended December 31, 2021.
RTOs and ISOs
The Company participates in the organized markets of CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM, known as RTOs or ISOs. Trading in these markets is approved by FERC, or in the case of ERCOT, approved by the PUCT and includes credit policies that, under certain circumstances, require that losses arising from the default of one member on spot market transactions be shared by the remaining participants. As a result, the counterparty credit risk to these markets is limited to NRG’s share of overall market and are excluded from the above exposures.
Exchange Traded Transactions
The Company enters into commodity transactions on registered exchanges, notably ICE, NYMEX and Nodal. These clearinghouses act as the counterparty and transactions are subject to extensive collateral and margining requirements. As a result, these commodity transactions have limited counterparty credit risk.
Long-Term Contracts
Counterparty credit exposure described above excludes credit risk exposure under certain long term contracts, primarily solar PPAs. As external sources or observable market quotes are not available to estimate such exposure, the Company values these contracts based on various techniques including, but not limited to, internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Based on these valuation techniques, as of December 31, 2021, aggregate credit risk exposure managed by NRG to these counterparties was approximately $1.1 billion for the next five years.
Retail Customer Credit Risk
The Company is exposed to retail credit risk through the Company's retail electricity and related products economically hedging NRG's generation assets' forecasted outputgas providers, which serve Home and Business customers. Retail credit risk results in losses when a customer fails to pay for services rendered. The losses may result from both nonpayment of customer accounts receivable and the loss of in-the-money forward value. The Company manages retail credit risk through the use of established credit policies that include monitoring of the portfolio and the use of credit mitigation measures such as deposits or NRG'sprepayment arrangements.
As of December 31, 2021, the Company's retail load obligations through 2034;
Forwardcustomer credit exposure to Home and financial contractsBusiness customers was diversified across many customers and various industries, as well as government entities. The Company is also subject to risk with respect to its residential solar customers. The Company's provision for credit losses was $698 million, $108 million, and $95 million for the purchase of fuel commodities relating to the forecasted usage of NRG's generation assets through 2019; and
Other energy derivatives instruments extending through 2029.
Also, as of years ending December 31, 2018, NRG had other energy-related2021, 2020, and 2019, respectively. As a result of Winter Storm Uri, the Company incurred additional credit losses from Business customers primarily due to a segment of customers whose contracts included a pass through of wholesale power prices which were significantly escalated during the storm and from customers who failed to meet their obligations in ERCOT load curtailment programs.

Note 6 — Accounting for Derivative Instruments and Hedging Activities
ASC 815 requires the Company to recognize all derivative instruments on the balance sheet as either assets or liabilities and to measure them at fair value each reporting period unless they qualify for a NPNS exception. The Company may elect to designate certain derivatives as cash flow hedges, if certain conditions are met, and defer the change in fair value of the derivatives to accumulated OCI, until the hedged transactions occur and are recognized in earnings.
For derivatives that didare not meetdesignated as cash flow hedges or do not qualify for hedge accounting treatment, the definition of achanges in the fair value will be immediately recognized in earnings. Certain derivative instrument or qualifiedinstruments may qualify for the NPNS exception and wereare therefore exempt from fair value accounting treatment as follows:
Load-following forward electric saletreatment. ASC 815 applies to NRG's energy related commodity contracts, extending through 2034;
Power tolling contracts through 2029;
Coal purchase contracts through 2021;
Power transmission contracts through 2025;
Natural gas transportationforeign exchange contracts, and storage agreements through 2030; and
Coal transportation contracts through 2029.
Interest Rate Swaps
NRG is exposed to changes in interest rates through the Company's issuance of variable rate debt. In order to manage the Company's interest rate risk, NRG enters into interest rate swap agreements. swaps.
As the Company engages principally in the trading and marketing of December 31, 2018, NRG's derivativeits generation assets consisted of interest rate derivative instruments on recourse debt extending through 2021.

Volumetric Underlying Derivative Transactions
The following table summarizes the net notional volume buy/(sell)and retail operations, some of NRG's open derivative transactions broken out by commodity, excluding those derivatives that qualifiedcommercial activities qualify for NPNS accounting. Most of the retail load contracts either qualify for the NPNS exception as of December 31, 2018 and 2017. Option contracts are reflected using delta volume. Delta volume equalsor fail to meet the notional volume of an option adjustedcriteria for the probability that the option will be in-the-money at its expiration date.
  Total Volume
CommodityUnitsDecember 31, 2018 December 31, 2017
  (In millions)
EmissionsShort Ton(2) 1
Renewables Energy CertificatesCertificates1
 
CoalShort Ton13
 21
Natural GasMMBtu(330) (20)
OilBarrels1
 
PowerMWh1
 23
CapacityMW/Day(1) (1)
InterestDollars$1,000
 $1,060
EquityShares
 1
The increase in the natural gas position was primarily the result of additional generation hedge positions.
Fair Value of Derivative Instruments
The following table summarizes the fair value within the derivative instrument valuation on the balance sheet:
 Fair Value
 Derivative Assets Derivative Liabilities
(In millions)December 31, 2018 December 31, 2017 December 31, 2018 December 31, 2017
Derivatives Not Designated as Cash Flow or Fair Value Hedges:
       
Interest rate contracts current$17
 $8
 $
 $1
Interest rate contracts long-term22
 31
 
 5
Commodity contracts current747
 616
 673
 536
Commodity contracts long-term295
 128
 304
 138
Total Derivatives Not Designated as Cash Flow or Fair Value Hedges$1,081
 $783
 $977
 $680

The Company has elected to present derivative assets and liabilities on the balance sheet on a trade-by-trade basis and does not offset amounts at the counterparty master agreement level. In addition, collateral received or paid on the Company's derivative assets or liabilities are recorded on a separate line item on the balance sheet. The following table summarizes the offsetting derivatives by counterparty master agreement level and collateral received or paid:
 Gross Amounts Not Offset in the Statement of Financial Position
 Gross Amounts of Recognized Assets/Liabilities Derivative Instruments Cash Collateral (Held)/Posted Net Amount
As of December 31, 2018(In millions)
Commodity contracts:       
Derivative assets$1,042
 $(778) $(31) $233
Derivative liabilities(977) 778
 114
 (85)
Total commodity contracts65


 83
 148
Interest rate contracts:       
Derivative assets39
 
 
 39
Total interest rate contracts39
 
 
 39
Total derivative instruments$104
 $
 $83
 $187
 Gross Amounts Not Offset in the Statement of Financial Position
 Gross Amounts of Recognized Assets/Liabilities Derivative Instruments Cash Collateral (Held)/Posted Net Amount
As of December 31, 2017(In millions)
Commodity contracts:       
Derivative assets$744
 $(578) $(11) $155
Derivative liabilities(674) 578
 72
 (24)
Total commodity contracts70
 
 61
 131
Interest rate contracts:       
Derivative assets39
 
 
 39
Derivative liabilities(6) 
 
 (6)
Total interest rate contracts33
 
 
 33
Total derivative instruments$103

$

$61
 $164
Accumulated Other Comprehensive Income
The following table summarizes the effects on NRG's accumulated OCI balance attributable to cash flow hedge derivatives, net of tax:
 Interest Rate Contracts
 2018 2017 2016
 (In millions)
Accumulated OCI beginning balance$(54) $(66) $(101)
Reclassified from accumulated OCI to income:     
Due to realization of previously deferred amounts8
 12
 21
Mark-to-market of cash flow hedge accounting contracts21
 
 14
Sale of NRG Yield and Renewables$25
 $
 $
Accumulated OCI ending balance, net of $0, $8 and $16 tax$
 $(54) $(66)

Amounts reclassified from accumulated OCI into income are recorded in discontinued operations.


Accounting guidelines require a high degree of correlation between the derivative and the hedged item throughoutmajority of the period in orderretail supply and fuels supply contracts are recorded under mark-to-market accounting. All of NRG's hedging and trading activities are subject to qualify as a cash flow hedge. As of December 31, 2016,limits within the Company's regression analysis for certain yield interest rate swaps, while positively correlated, did not meet the required threshold for cash flow hedge accounting. As a result, the Company de-designated these derivatives as cash flow hedges as of December 31, 2016, and prospectively marked these derivatives to market through the income statement until the assets were sold.

The Company's regression analysis for certain Yield interest rate swaps, while positively correlated, no longer contain matching terms for cash flow hedge accounting. As a result, the Company voluntarily de-designated these derivatives as cash flow hedges as of April 28, 2017, and prospectively marked these derivatives to market through the income statement until the assets were sold.

Impact of Derivative Instruments on the Statement of Operations
Unrealized gains and losses associated with changes in the fair value of derivative instruments not accounted for as cash flow hedges are reflected in current period earnings.
The following table summarizes the pre-tax effects of economic hedges that have not been designated as cash flow hedges, and trading activity on the Company's statement of operations. The effect of commodity hedges is included within operating revenues and cost of operations and the effect of interest rate hedges is included in interest expense.Risk Management Policy.
116
 Year Ended December 31,
 2018 2017 2016
 (In millions)
Unrealized mark-to-market results     
Reversal of previously recognized unrealized (gains)/losses on settled positions related to economic hedges$(73) $47
 $(128)
Reversal of acquired gain positions related to economic hedges(10) 
 (12)
Net unrealized gains on open positions related to economic hedges97
 159
 12
Total unrealized mark-to-market gains/(losses) for economic hedging activities14
 206
 (128)
Reversal of previously recognized unrealized (gains)/losses on settled positions related to trading activity(12) (25) 10
Net unrealized gains on open positions related to trading activity29
 14
 18
Total unrealized mark-to-market gains/(losses) for trading activity17
 (11) 28
Total unrealized gains/(losses)$31
 $195
 $(100)


 Year Ended December 31,
 2018 2017 2016
 (In millions)
Unrealized (losses)/gains included in operating revenues$(113) $241
 $(608)
Unrealized gains/(losses) included in cost of operations144
 (46) 508
Total impact to statement of operations — energy commodities$31
 $195
 $(100)
Total impact to statement of operations — interest rate contracts$
 $4
 $(8)
The reversal of gain or loss positions acquired as part of acquisitions were valued based upon the forward prices on the acquisition dates. The roll-off amounts were offset by realized gains or losses at the settled prices and are reflected in revenue or cost of operations during the same period.
For the year ended December 31, 2018, the $97 million gain from economic hedge positions was primarily the result of an increase in the value of forward purchases of ERCOT heat rate contracts due to ERCOT heat rate expansion.
For the year ended December 31, 2017, the $159 million gain from economic hedge positions was primarily the result of an increase in the value of forward purchases of ERCOT heat rate contracts due to ERCOT heat rate expansion.
For the year ended December 31, 2016, the $12 million gain from economic hedge positions was primarily the result of an increase in the value of forward purchases of natural gas due to an increase in natural gas prices.

Credit Risk Related Contingent Features
Certain of the Company's hedging and trading agreements contain provisions that requireentitle the counterparty to demand that the Company to post additional collateral if the counterparty determines that there has been deterioration in the Company's credit quality, generally termed "adequate assurance"“adequate assurance” under the agreements, or require the Company to post additional collateral if there were a one notch downgrade in the Company's credit rating. In addition, as a result of the acquisition of Direct Energy from Centrica, certain of the Company’s agreements as of December 31, 2021, were still supported by credit support posted by Centrica, and as a result could require the Company to post collateral upon a deterioration or downgrade of Centrica. The collateral required for contracts that have adequate assurance clauses that are in net liability positions as of December 31, 2018 was $16 million. The collateralpotentially required for contracts with credit rating contingent featuresadequate assurance clauses that are in a net liability position as of December 31, 20182021, was $14 million.$1.0 billion. The Company is also a party to certain marginable agreements under which it has a net liability position, but the counterparty has not called for the collateral due, which was approximately $11$70 million as of December 31, 2018.2021. In the event of a downgrade in the Company's credit rating and if called for by the counterparty, $1 million of additional collateral would be required for all contracts with credit rating contingent features as of December 31, 2021.
See
75

Currency Exchange Risk
NRG is subject to transactional exchange rate risk from transactions with customers in countries outside of the United States, primarily within Canada, as well as from intercompany transactions between affiliates. Transactional exchange rate risk arises from the purchase and sale of goods and services in currencies other than our functional currency or the functional currency of an applicable subsidiary. NRG hedges a portion of its forecasted currency transactions with foreign exchange forward contracts. As of December 31, 2021, NRG is exposed to changes in foreign currency primarily associated with the purchase of U.S. dollar denominated natural gas for its Canadian business and entered into foreign exchange contracts with notional amount of $279 million.
The Company is subject to translation exchange rate risk related to the translation of the financial statements of its foreign operations into U.S. dollars. Costs incurred and sales recorded by subsidiaries operating outside of the United States are translated into U.S. dollars using exchange rates effective during the respective period. As a result, the Company is exposed to movements in the exchange rates of various currencies against the U.S. dollar, primarily the Canadian and Australian dollars. A hypothetical 10% appreciation in major currencies relative to the U.S. dollar as of December 31, 2021 would have resulted in an increase of $10 million to net income within the Consolidated Statement of Operations.
Item 8 — Financial Statements and Supplementary Data
The financial statements and schedules are included in Part IV, Item 15 of this Form 10-K.

Item 9 — Changes in and Disagreements With Accountants on Accounting and Financial Disclosure
None.

Item 9A — Controls and Procedures
Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures and Internal Control Over Financial Reporting
Under the supervision and with the participation of NRG's management, including its principal executive officer, principal financial officer and principal accounting officer, NRG conducted an evaluation of the effectiveness of the design and operation of its disclosure controls and procedures, as such term is defined in Rules 13a-15(e) or 15d-15(e) of the Exchange Act. Based on this evaluation, the Company's principal executive officer, principal financial officer and principal accounting officer concluded that the disclosure controls and procedures were effective as of the end of the period covered by this Annual Report on Form 10-K. Management's report on the Company's internal control over financial reporting and the report of the Company's independent registered public accounting firm are incorporated under the caption "Management's Report on Internal Control over Financial Reporting" and under the caption "Report of Independent Registered Public Accounting Firm" in this Annual Report on Form 10-K for the fiscal year ended December 31, 2021.
Changes in Internal Control over Financial Reporting
During the year ended December 31, 2021, the Company completed its acquisition of Direct Energy. In the first quarter of 2022, the Company integrated a significant component of Direct Energy's accounting systems into NRG's legacy ERP system. As part of this integration, the Company has completed the evaluation of our internal controls related to Direct Energy, and designed and implemented a control structure over Direct Energy's operations. Other than the Direct Energy acquisition, there were no changes in NRG’s internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) that occurred in the fourth quarter of 2021 that materially affected, or are reasonably likely to materially affect, NRG’s internal control over financial reporting.
76

Inherent Limitations over Internal Controls
NRG's internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements for external purposes in accordance with GAAP. The Company's internal control over financial reporting includes those policies and procedures that:
1.Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the Company's assets;
2.Provide reasonable assurance that transactions are recorded as necessary to permit preparation of consolidated financial statements in accordance with GAAP, and that the Company's receipts and expenditures are being made only in accordance with authorizations of its management and directors; and
3.Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the consolidated financial statements.
Internal control over financial reporting cannot provide absolute assurance of achieving financial reporting objectives because of its inherent limitations, including the possibility of human error and circumvention by collusion or overriding of controls. Accordingly, even an effective internal control system may not prevent or detect material misstatements on a timely basis. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate.
Management's Report on Internal Control over Financial Reporting
The Company's management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Under the supervision and with the participation of the Company's management, including its principal executive officer, principal financial officer and principal accounting officer, the Company conducted an evaluation of the effectiveness of its internal control over financial reporting based on the framework in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on the Company's evaluation under the framework in Internal Control — Integrated Framework (2013), the Company's management concluded that its internal control over financial reporting was effective as of December 31, 2021.
On January 5, 2021, NRG acquired Direct Energy, as further described in Note 4,Acquisitions, Discontinued Operations and Dispositions. Direct Energy comprised of approximately 35% of the Company's total assets as of December 31, 2021 and approximately 58% of the Company's total revenues for the year ended December 31, 2021. As of December 31, 2021, we are in the process of evaluating the internal controls of the acquired business and integrated it into our existing operations. The acquired business has, therefore, been excluded from management's assessment of internal control over financial reporting for the year ended December 31, 2021.
The effectiveness of the Company's internal control over financial reporting as of December 31, 2021 has been audited by KPMG LLP, the Company's independent registered public accounting firm, as stated in its report which is included in this Annual Report on Form 10-K.

77

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders
NRG Energy, Inc.:
Opinion on Internal Control Over Financial Reporting
We have audited NRG Energy, Inc. and subsidiaries' (the Company) internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2021 and 2020, the related consolidated statements of operations, comprehensive income, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2021, and the related notes and financial statement schedule II (collectively, the consolidated financial statements), and our report dated February 24, 2022 expressed an unqualified opinion on those consolidated financial statements.
The Company acquired Direct Energy during 2021 and management excluded from its assessment of the effectiveness of the Company's internal control over financial reporting as of December 31, 2021. Direct Energy's internal control over financial reporting are associated with 35% of total assets and 58% of total revenues included in the consolidated financial statements of the Company as of and for the year ended December 31, 2021. Our audit of internal control over financial reporting of the Company also excluded an evaluation of the internal control over financial reporting of Direct Energy.
Basis for Opinion
The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
Definition and Limitations of Internal Control Over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ KPMG LLP

Philadelphia, Pennsylvania
February 24, 2022
78

Item 9B — Other Information
Entry into a Material Definitive Agreement.
On February 22, 2022, the Company entered into a Supplemental Indenture (the “Supplemental Indenture”), by and among the Company, the guarantors named therein (the “Guarantors") and Delaware Trust Company, as trustee and conversion agent (the “Trustee”), to supplement the Indenture, dated as of May 24, 2018 (the “Indenture”), among the Company, the Guarantors and the Trustee, governing the Convertible Senior Notes. Pursuant to the Supplemental Indenture, the Company has irrevocably (i) eliminated the right of the Company to elect Physical Settlement (as defined in the Indenture) as the Settlement Method (as defined in the Indenture) on any conversion of Convertible Senior Notes that occurs on or after the date of the Supplemental Indenture and (ii) elected that, with respect to any Combination Settlement (as defined in the Indenture), the Specified Dollar Amount (as defined in the Indenture) per $1,000 principal amount of the Convertible Senior Notes shall be no lower than $1,000.
The foregoing description of the Supplemental Indenture does not purport to be complete and is qualified in its entirety by reference to the full text of the Supplemental Indenture, a copy of which is filed as Exhibit 4.52 to this report and is incorporated herein by reference.
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
Effective February 24, 2022, Emily C. Picarello, CPA, was named as Principal Accounting Officer of NRG Energy, Inc. Ms. Picarello, age 41, joined the Company in December 2018 and served as Assistant Controller for the Company through November 2021, when she was promoted to Vice President and Corporate Controller. Ms. Picarello will continue in this role reporting to Alberto Fornaro, NRG's Executive Vice President and Chief Financial Officer.
Prior to her employment with the Company, Ms. Picarello spent over seven years with PVH Corp., one of the largest global apparel companies in the world, first as the Director of Financial Reporting and then as the Vice President, Financial Reporting. Prior to Ms. Picarello's time with PVH Corp., she was an auditor with KPMG LLP for over eight years, holding various positions including Audit Senior Manager.

Item 9C— Disclosure Regarding Foreign Jurisdictions that Prevent Inspections
Not applicable.
79

PART III

Item 10 — Directors, Executive Officers and Corporate Governance
Directors and Executive Officers
Information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.
Code of Ethics
NRG has adopted a code of ethics entitled "NRG Code of Conduct" that applies to directors, officers and employees, including the chief executive officer and senior financial officers of NRG. It may be accessed through the "Governance" section of the Company's website at www.nrg.com. NRG also elects to disclose the information required by Form 8-K, Item 5.05, "Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics," through the Company's website, and such information will remain available on this website for at least a 12-month period. A copy of the "NRG Code of Conduct" is available in print to any stockholder who requests it.
Other information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.

Item 11 — Executive Compensation
Information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.

Item 12 — Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Securities Authorized for Issuance under Equity Compensation Plans
Plan Category
(a)
Number of Securities
to be Issued Upon
Exercise of
Outstanding Options,
Warrants and Rights
(b)
Weighted-Average Exercise
Price of Outstanding
Options, Warrants and
Rights
(c)
Number of Securities
Remaining Available
for Future Issuance
Under Equity Compensation
Plans (Excluding
Securities Reflected
in Column (a)
Equity compensation plans approved by security holders2,514,828 (1)$— 11,508,073 
Equity compensation plans not approved by security holders20,131 (2)20.07 — (4)
Total2,534,959 $20.07 11,508,073 (3)
(1)Consists of shares issuable under the NRG LTIP and the ESPP. The NRG LTIP became effective upon the Company's emergence from bankruptcy. On April 27, 2017, the NRG LTIP was amended and restated to increase the number of shares available for issuance to 25,000,000. The ESPP, as amended and restated, was approved by the Company's stockholders on April 27, 2017, and became effective April 28, 2017. As of December 31, 2021, there were 2,636,199 shares reserved from the Company's treasury shares for the ESPP
(2)Consists of shares issuable under the NRG GenOn LTIP. The plans is listed as “not approved” because it was not subject to separate line item approval by NRG's stockholders when the Merger was approved. See Item 15 Note 21, Stock-Based Compensation, to Consolidated Financial Statements for a discussion of the NRG GenOn LTIP
(3)Consists of 8,871,874 shares of common stock under NRG's LTIP and 2,636,199 shares of treasury stock reserved for issuance under the ESPP.
(4)Upon adoption of the NRG Amended and Restated LTIP effective April 27, 2017, no securities remain available for future issuance under the NRG GenOn LTIP. For further discussion, see Note 21, Stock-Based Compensation

NRG LTIP currently provides for grants of restricted stock units, relative performance stock units, deferred stock units and dividend equivalent rights. NRG's directors, officers and employees, as well as other individuals performing services for, or to whom an offer of employment has been extended by the Company, are eligible to receive grants under the NRG LTIP. The purpose of the NRG LTIP is to promote the Company's long-term growth and profitability by providing these individuals with incentives to maximize stockholder value and otherwise contribute to the Company's success and to enable the Company to attract, retain and reward the best available persons for positions of responsibility. The Compensation Committee of the Board of Directors administers the NRG LTIP.
Other information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.

80

Item 13 — Certain Relationships and Related Transactions, and Director Independence
Information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.

Item 14 — Principal Accounting Fees and Services
Information required by this Item is incorporated by reference to the similarly named section of NRG's Definitive Proxy Statement for its 2022 Annual Meeting of Stockholders.
81

PART IV

Item 15 — Exhibits, Financial Statement Schedules
(a)(1) Financial Statements
The following consolidated financial statements of NRG Energy, Inc. and related notes thereto, together with the reports thereon of KPMG LLP, Philadelphia, PA, Auditor Firm ID: 185, are included herein:
Consolidated Statements of Operations — Years ended December 31, 2021, 2020, and 2019
Consolidated Statements of Comprehensive Income — Years ended December 31, 2021, 2020, and 2019
Consolidated Balance Sheets — As of December 31, 2021 and 2020
Consolidated Statements of Cash Flows — Years ended December 31, 2021, 2020, and 2019
Consolidated Statements of Stockholders' Equity — Years ended December 31, 2021, 2020, and 2019
Notes to Consolidated Financial Statements
(a)(2) Financial Statement Schedule
The following Consolidated Financial Statement Schedule of NRG Energy, Inc. is filed as part of Item 15 of this report and should be read in conjunction with the Consolidated Financial Statements.
Schedule II — Valuation and Qualifying Accounts
All other schedules for which provision is made in the applicable accounting regulation of the Securities and Exchange Commission are not required under the related instructions or are inapplicable, and therefore, have been omitted.

(a)(3) Exhibits: See Exhibit Index submitted as a separate section of this report.
(b) Exhibits
See Exhibit Index submitted as a separate section of this report.
(c) Not applicable

82

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors and Stockholders
NRG Energy, Inc.:
Opinion on the Consolidated Financial Statements
We have audited the accompanying consolidated balance sheets of NRG Energy, Inc. and subsidiaries (the Company) as of December 31, 2021 and 2020, the related consolidated statements of operations, comprehensive income, stockholders' equity, and cash flows for each of the years in the three-year period ended December 31, 2021, and the related notes and financial statement schedule II (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2021, in conformity with U.S. generally accepted accounting principles.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 24, 2022 expressed an unqualified opinion on the effectiveness of the Company's internal control over financial reporting.
Basis for Opinion
These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters
The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Evaluation of the sufficiency of audit evidence over operating revenues
As discussed in Note 3 to the consolidated financial statements, the Company had $26.989 billion of operating revenues. Operating revenue is derived from various revenue streams in different geographic markets and the Company’s processes and related information technology (IT) systems used to record revenue differ for each of these revenue streams.
We identified the evaluation of the sufficiency of audit evidence over operating revenues as a critical audit matter which required a high degree of auditor judgment due to the number of revenue streams and IT systems involved in the revenue recognition process. This included determining the revenue streams over which procedures were to be performed and evaluating the nature and extent of evidence obtained over the individual revenue streams as well as operating revenue in the aggregate. It also included the involvement of IT professionals with specialized skills and knowledge to assist in the performance of certain procedures.
83

The following are the primary procedures we performed to address this critical audit matter. We, with the assistance of IT professionals, applied auditor judgment to determine the revenue streams over which procedures were performed as well as the nature and extent of such procedures. For certain revenue streams, we evaluated the design and tested the operating effectiveness of certain internal controls over the Company’s revenue recognition processes. For certain revenue streams, we involved IT professionals, who assisted in testing certain IT applications used by the Company in its revenue recognition processes. In addition, we assessed recorded revenue for a selection of transactions by comparing the amounts recognized to underlying documentation, including contracts with customers. In addition, we evaluated the sufficiency of audit evidence obtained over operating revenues by assessing the results of procedures performed, including the appropriateness of such evidence.
Fair value of customer relationship intangible assets

As discussed in Note 4 to the consolidated financial statements, the Company acquired Direct Energy on January 5, 2021 for consideration of $3.724 billion. The Company recorded the identifiable assets acquired and liabilities assumed at fair value at the acquisition date, including $1.277 billion of customer relationship intangible assets which represent the generation of future income reflective of Direct Energy's customer base. Customer relationship intangible assets were valued using the excess earnings method of the income approach.
We identified the evaluation of the fair value of customer relationship intangible assets acquired in the Direct Energy transaction as a critical audit matter. A higher degree of auditor judgment was required to evaluate the customer attrition used in the excess earnings method. Changes in the customer attrition could have a significant impact on the forecasted future cash flows used in the excess earnings method and the resulting fair value of the customer relationship intangible assets.
The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the Company's acquisition-date valuation process, including controls over the development of the customer attrition. We performed sensitivity analyses over the Company's customer attrition used to determine the estimated fair value of the customer relationship intangible assets to assess the effect of changes in that assumption on the Company's determination of fair value. We evaluated the customer attrition by comparing it to the Company's actual customer attrition.
/s/ KPMG LLP
We have served as the Company's auditor since 2004.

Philadelphia, Pennsylvania
February 24, 2022



84


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS
 For the Year Ended December 31,
(In millions, except per share amounts)202120202019
Operating Revenues
Total operating revenues$26,989 $9,093 $9,821 
Operating Costs and Expenses
Cost of operations (excluding depreciation and amortization shown below)20,482 6,540 7,303 
Depreciation and amortization785 435 373 
Impairment losses544 75 
Selling, general and administrative costs1,293 810 760 
Provision for credit losses698 108 95 
Acquisition-related transaction and integration costs93 23 
Total operating costs and expenses23,895 7,991 8,538 
Gain on sale of assets247 
Operating Income3,341 1,105 1,290 
Other Income/(Expense)
Equity in earnings of unconsolidated affiliates17 17 
Impairment losses on investments— (18)(108)
Other income, net63 67 66 
Loss on debt extinguishment(77)(9)(51)
Interest expense(485)(401)(413)
Total other expense(482)(344)(504)
Income from Continuing Operations Before Income Taxes2,859 761 786 
Income tax expense/(benefit)672 251 (3,334)
Income from Continuing Operations2,187 510 4,120 
Income from discontinued operations, net of income tax— — 321 
Net Income2,187 510 4,441 
Less: Net income attributable to redeemable noncontrolling interest— — 
Net Income Attributable to NRG Energy, Inc.$2,187 $510 $4,438 
Income Per Share Attributable to NRG Energy, Inc. Common Stockholders
Weighted average number of common shares outstanding — basic245 245 262 
Income from continuing operations per weighted average common share — basic$8.93 $2.08 $15.71 
Income from discontinued operations per weighted average common share — basic$— $— $1.23 
Net Income per Weighted Average Common Share — Basic$8.93 $2.08 $16.94 
Weighted average number of common shares outstanding — diluted245 246 264 
Income from continuing operations per weighted average common share — diluted$8.93 $2.07 $15.59 
Income from discontinued operations per weighted average common share — diluted$— $— $1.22 
Net Income per Weighted Average Common Share — Diluted$8.93 $2.07 $16.81 
See notes to Consolidated Financial Statements
85


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
For the Year Ended December 31,
(In millions)202120202019
Net Income$2,187 $510 $4,441 
Other Comprehensive Income/(Loss), net of tax
Foreign currency translation adjustments, net of income tax(5)(1)
Available-for-sale securities, net of income tax— — (19)
Defined benefit plans, net of income tax85 (22)(78)
Other comprehensive income/(loss)80 (14)(98)
Comprehensive Income2,267 496 4,343 
Less: Net income attributable to redeemable noncontrolling interest— — 
Comprehensive Income Attributable to NRG Energy, Inc.$2,267 $496 $4,340 
See notes to Consolidated Financial Statements
86


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
 As of December 31,
(In millions)20212020
ASSETS  
Current Assets  
Cash and cash equivalents$250 $3,905 
Funds deposited by counterparties845 19 
Restricted cash15 
Accounts receivable, net3,245 904 
Uplift securitization proceeds receivable from ERCOT689 — 
Inventory498 327 
Derivative instruments4,613 560 
Cash collateral paid in support of energy risk management activities291 50 
Prepayments and other current assets395 257 
Total current assets10,841 6,028 
Property, plant and equipment, net1,688 2,547 
Other Assets
Equity investments in affiliates157 346 
Operating lease right-of-use assets, net271 301 
Goodwill1,795 579 
Intangible assets, net2,511 668 
Nuclear decommissioning trust fund1,008 890 
Derivative instruments2,527 261 
Deferred income taxes2,155 3,066 
Other non-current assets229 216 
Total other assets10,653 6,327 
Total Assets$23,182 $14,902 
See notes to Consolidated Financial Statements
87


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Continued)
 As of December 31,
(In millions, except share data)20212020
LIABILITIES AND STOCKHOLDERS' EQUITY  
Current Liabilities 
Current portion of long-term debt and finance leases$$
Current portion of operating lease liabilities81 69 
Accounts payable 2,274 649 
Derivative instruments3,387 499 
Cash collateral received in support of energy risk management activities845 19 
Accrued expenses and other current liabilities1,324 678 
Total current liabilities7,915 1,915 
Other Liabilities 
Long-term debt and finance leases7,966 8,691 
Non-current operating lease liabilities236 278 
Nuclear decommissioning reserve321 303 
Nuclear decommissioning trust liability666 565 
Derivative instruments1,412 385 
Deferred income taxes73 19 
Other non-current liabilities993 1,066 
Total other liabilities11,667 11,307 
Total Liabilities19,582 13,222 
Commitments and Contingencies00
Stockholders' Equity
Common stock; $0.01 par value; 500,000,000 shares authorized; 423,547,174 and 423,057,848 shares issued; and 243,753,899 and 244,231,933 shares outstanding at December 31, 2021 and 2020, respectively
Additional paid-in capital8,531 8,517 
Retained earnings/(accumulated deficit)464 (1,403)
Treasury stock, at cost; 179,793,275 and 178,825,915 shares at December 31, 2021 and 2020, respectively(5,273)(5,232)
Accumulated other comprehensive loss(126)(206)
Total Stockholders' Equity3,600 1,680 
Total Liabilities and Stockholders' Equity$23,182 $14,902 
See notes to Consolidated Financial Statements

88


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
 For the Year Ended December 31,
(In millions)202120202019
Cash Flows from Operating Activities
Net income$2,187 $510 $4,441 
Income from discontinued operations, net of income tax— — 321 
Income from continuing operations2,187 510 4,120 
Adjustments to reconcile net income to net cash provided by operating activities:
Distributions from and equity in earnings of unconsolidated affiliates20 45 14 
Depreciation and amortization785 435 373 
Accretion of asset retirement obligations30 45 51 
Provision for credit losses698 108 95 
Amortization of nuclear fuel51 54 52 
Amortization of financing costs and debt discounts39 48 26 
Loss on debt extinguishment77 51 
Amortization of in-the-money contracts and emission allowances106 70 72 
Amortization of unearned equity compensation21 22 20 
Net gain on sale of assets and disposal of assets(261)(23)(23)
Impairment losses544 93 113 
Changes in derivative instruments(3,626)137 34 
Changes in deferred income taxes and liability for uncertain tax benefits604 228 (3,353)
Changes in collateral deposits in support of risk management activities797 127 105 
Changes in nuclear decommissioning trust liability40 51 37 
Oil lower of cost or market adjustment— 29 — 
Uplift securitization proceeds receivable from ERCOT(689)— — 
Cash (used)/provided by changes in other working capital, net of acquisition and disposition effects:
Accounts receivable - trade(1,232)— 
Inventory(61)27 22 
Prepayments and other current assets31 29 
Accounts payable476 (56)(177)
Accrued expenses and other current liabilities(55)(42)(75)
Other assets and liabilities(89)(84)(186)
Cash provided by continuing operations493 1,837 1,405 
Cash provided by discontinued operations— — 
Net Cash Provided by Operating Activities$493 $1,837 $1,413 
Cash Flows from Investing Activities
Payments for acquisitions of assets, businesses and leases$(3,559)$(284)$(355)
Capital expenditures(269)(230)(228)
Net (purchases)/sales of emissions allowances— (10)11 
Investments in nuclear decommissioning trust fund securities(751)(492)(416)
Proceeds from sales of nuclear decommissioning trust fund securities710 439 381 
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees830 81 1,294 
Changes in investments in unconsolidated affiliates— (91)
Net contributions to discontinued operations— — (44)
Other— — 
Cash (used)/provided by continuing operations(3,039)(494)558 
Cash used by discontinued operations— — (2)
Net Cash (Used)/Provided by Investing Activities$(3,039)$(494)$556 
89


 For the Year Ended December 31,
(In millions)202120202019
Cash Flows from Financing Activities
Proceeds from issuance of long-term debt$1,100 $3,234 $1,833 
Payments for short and long-term debt(1,861)(335)(2,571)
Payments of dividends to common stockholders(319)(295)(32)
Net receipts/(payments) from settlement of acquired derivatives that include financing elements938 (7)(4)
Payments for share repurchase activity(48)(229)(1,440)
Payments for debt extinguishment costs(65)(5)(26)
Payments of debt issuance costs(18)(75)(35)
Net (repayments)/proceeds of Revolving Credit Facility— (83)83 
Proceeds from issuance of common stock
Purchase of and distributions to noncontrolling interests from subsidiaries— (2)(2)
Cash (used)/provided by continuing operations(272)2,204 (2,191)
Cash provided by discontinued operations— — 43 
Net Cash (Used)/Provided by Financing Activities$(272)$2,204 $(2,148)
Effect of exchange rate changes on cash and cash equivalents(2)(2)— 
Change in Cash from discontinued operations— — 49 
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash(2,820)3,545 (228)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period3,930 385 613 
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period$1,110 $3,930 $385 
For further discussion of supplemental cash flow information see Note 26, Cash Flow Information

See notes to Consolidated Financial Statements
90


NRG ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(In millions)
Common
Stock
Additional
Paid-In
Capital
Retained Earnings/ (Accumulated Deficit)
Treasury
Stock
Accumulated
Other
Comprehensive
Loss
Total
Stock-holders'
Equity
Balances at December 31, 2018$$8,510 $(6,022)$(3,632)$(94)$(1,234)
Net income attributable to NRG Energy, Inc.4,438 4,438 
Other comprehensive loss(98)(98)
Shares reissuance for ESPP
Share repurchases(1,409)(1,409)
Equity-based awards activity, net(a)
(16)(16)
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(32)(32)
Balance at December 31, 2019$$8,501 $(1,616)$(5,039)$(192)$1,658 
Net income510 510 
Other comprehensive loss(14)(14)
Repurchase of partners' equity interest in VIE18 18 
Shares reissuance for ESPP
Share repurchases(197)(197)
Equity-based awards activity, net(a)
(3)(3)
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(297)(297)
Balance at December 31, 2020$$8,517 $(1,403)$(5,232)$(206)$1,680 
Net income2,187 2,187 
Other comprehensive income80 80 
Shares reissuance for ESPP
Share repurchases(44)(44)
Equity-based awards activity, net(a)
12 12 
Issuance of common stock
Common stock dividends and dividend equivalents declared(b)
(320)(320)
Balance at December 31, 2021$$8,531 $464 $(5,273)$(126)$3,600 
(a)Includes $(9) million, $(27) million and $(36) million of equivalent shares purchased in lieu of tax withholding on equity compensation issuances for the years ended December 31, 2021, 2020 and 2019, respectively
(b)Dividends per common share were $1.30, $1.20 and $0.12 for each of the years ended December 31,2021, 2020 and 2019, respectively

See notes to Consolidated Financial Statements
91


NRG ENERGY, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Note 1 — Nature of Business
General
NRG Energy, Inc., or NRG or the Company, is a consumer services company built on dynamic retail brands. NRG brings the power of energy to customers by producing and selling energy and related products and services, nation-wide in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG sells power, natural gas, home and power services, and develops innovative, sustainable solutions, predominately under the brand names NRG, Reliant, Direct Energy, Green Mountain Energy, Stream, and XOOM Energy. The Company has a customer base that includes approximately 6 million Home customers as well as commercial, industrial, and wholesale customers, supported by approximately 18,000 MW of generation.
On January 5, 2021, the Company acquired Direct Energy, which had been a North American subsidiary of Centrica. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increases NRG's retail portfolio by over 3 million customers and complements its integrated model. It also broadens the Company's presence in the Northeast and into states and locales where it does not currently operate, supporting NRG's objective to diversify its business. See Note 4, Acquisitions, Discontinued Operations and Dispositions, to the Consolidated Financial Statements for further discussion of the acquisition of Direct Energy.
On December 1, 2021, the Company sold approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. NRG received $623 million of net proceeds, after purchase price adjustments pursuant to the terms of the Purchase and Sale Agreement entered into on February 28, 2021. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released, leading the Company to announce the near-term retirement of approximately 1,600 MW of its PJM coal generating assets in June 2022. On July 30, 2021, PJM identified reliability impacts resulting from the proposed deactivation of one of those assets, Indian River Unit 4. On August 27, 2021 the Company notified PJM that it would continue operations at Indian River Unit 4 until the reliability upgrades identified by PJM were completed, provided that the unit receives a satisfactory and compensatory reliability must run arrangement. See Item 15 Note 11, Asset Impairments, to the Consolidated Financial Statements for further discussion. The Company is continuing to evaluate the viability of the remaining PJM generating assets.
The Company manages its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus.
The Company's business is segmented as follows:
Texas, which includes all activity related to customer, plant and market operations in Texas;
East, which includes all activity related to customer, plant and market operations in the East;
West/Services/Other, which includes the following assets and activities: (i) all activity related to plant and market operations in the West and Canada, (ii) the Services businesses (iii) activity related to the Cottonwood facility, (iv) the remaining renewables activity, including the Company’s equity method investment in Ivanpah Master Holdings, LLC, and (v) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and
Corporate activities.

Note 2 — Summary of Significant Accounting Policies
Basis of Presentation and Principles of Consolidation
The Company's consolidated financial statements have been prepared in accordance with U.S. GAAP. The ASC, established by the FASB, is the source of authoritative U.S. GAAP to be applied by nongovernmental entities. In addition, the rules and interpretative releases of the SEC under authority of federal securities laws are also sources of authoritative U.S. GAAP for SEC registrants.
The consolidated financial statements include NRG's accounts and operations and those of its subsidiaries in which the Company has a controlling interest. All significant intercompany transactions and balances have been eliminated in consolidation. The usual condition for a controlling financial interest is ownership of a majority of the voting interests of an entity. However, a controlling financial interest may also exist through arrangements that do not involve controlling voting
92


interests. As such, NRG applies the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or not controlled through its voting interests, referred to as a VIE, should be consolidated.
Cash and Cash Equivalents
Cash and cash equivalents include highly liquid investments with an original maturity of three months or less at the time of purchase.
Funds Deposited by Counterparties
Funds deposited by counterparties consist of cash held by the Company as a result of collateral posting obligations from its counterparties. Though some amounts are segregated into separate accounts, not all funds are contractually restricted. Based on the Company's intention, these funds are not available for the payment of general corporate obligations; however, they are available for liquidity management. Depending on market fluctuations and the settlement of the underlying contracts, the Company will refund this collateral to the hedge counterparties pursuant to the terms and conditions of the underlying trades. Since collateral requirements fluctuate daily and the Company cannot predict if any collateral will be held for more than twelve months, the funds deposited by counterparties are classified as a current asset on the Company's balance sheet, with an offsetting liability for this cash collateral received within current liabilities.
Winter Storm Uri Uplift Securitization Proceeds
The Texas Legislature passed HB 4492 for ERCOT to mitigate exceptionally high price adders and ancillary service costs incurred by LSEs during Winter Storm Uri. HB 4492 authorized ERCOT to obtain $2.1 billion of financing to distribute to LSEs that were charged and paid to ERCOT those highly priced ancillary service and ORDPA during Winter Storm Uri.
In December 2021, ERCOT filed with the PUCT a calculation of each LSE’s share of proceeds based on the settlement methodology. The Company accounted for the proceeds we will receive by analogy to the contribution model within ASC 958-605, Not-for-Profit Entities- Revenue Recognition and the grant model within IAS 20, Accounting for Government Grants and Disclosure of Government Assistance, as a reduction to expenses in the consolidated statements of operations in the annual period for which the proceeds are intended to compensate. The Company expects to receive proceeds of $689 million from ERCOT in the second quarter of 2022 and we concluded that the threshold for recognizing a receivable was met in December 2021 as the amounts to be received are determinable and ERCOT was directed by its governing body, the PUCT, to take all actions required to effectuate the $2.1 billion funding approved in the DOO. The associated expense reduction is reflected in Cost of operations within our consolidated statements of operations as that is where the initial costs which are being compensated for were recorded.
Credit Losses
On January 1, 2020, the Company adopted ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, or ASU No. 2016-13, using the modified retrospective approach. Following the adoption of the new standard, the Company’s process of estimating expected credit losses remains materially consistent with its historical practice. Information prior to January 1, 2020, which was previously referred to as the allowance and provision for bad debt, has not been restated and continues to be reported under the accounting standards in effect for that period.
Retail trade receivables are reported on the balance sheet net of the allowance for credit losses. The Company accrues an allowance for current expected credit losses based on (i) estimates of uncollectible revenues by analyzing accounts receivable aging and current and reasonable forecasts of expected economic factors including, but not limited to, unemployment rates and weather-related events, (ii) historical collections and delinquencies, and (iii) counterparty credit ratings for commercial and industrial customers. The Company writes off customer contract receivable balances against the allowance for credit losses when it is determined a receivable is uncollectible.
The following table represents the activity in the allowance for credit losses for the year ended December 31, 2021:
Year Ended December 31,
(In millions)20212020
Beginning balance$67 $43 
Acquired balance from Direct Energy112 — 
Provision for credit losses(a)
698 108 
Write-offs(224)(101)
Recoveries collected30 17 
Ending balance(a)
$683 $67 
(a)Includes bilateral finance hedging risk of $403 million accounted for under ASC 815
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The increase in the provision for credit losses during the year ended December 31, 2021, compared to 2020 was primarily due to the impacts of Winter Storm Uri on bilateral finance hedging risk of $403 million, counterparty credit risk of $126 million and ERCOT default shortfall payments of $67 million.

Restricted Cash
The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of cash flows.
 Year Ended December 31,
(In millions)202120202019
Cash and cash equivalents$250 $3,905 $345 
Funds deposited by counterparties845 19 32 
Restricted cash15 
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statements of cash flows$1,110 $3,930 $385 
Restricted cash consists primarily of funds held to satisfy the requirements of certain debt agreements and funds held within the Company's projects that are restricted in their use.
Inventory
Inventory is valued at the lower of weighted average cost or market, and consists principally of natural gas, fuel oil, coal, spare parts and finished goods. The Company removes natural gas inventory in the delivery of goods to customers and as they are used in the production of electricity or steam. The Company removes fuel oil and coal inventories as they are used in the production of electricity. Spare parts inventory is valued at weighted average cost. The Company removes these inventories when they are used for repairs, maintenance or capital projects. The Company expects to recover the natural gas, fuel oil, coal and spare parts costs in the ordinary course of business. Inventory is valued at the lower of cost or net realizable value with cost being determined on a first in first out basis for finished goods and weighted average cost method for all other inventories. The Company removes these inventories as they are sold to customers. Sales of inventory are classified as an operating activity in the consolidated statements of cash flows.
Property, Plant and Equipment
Property, plant and equipment are stated at cost or, in the case of business acquisitions, fair value; however, impairment adjustments are recorded whenever events or changes in circumstances indicate that their carrying values may not be recoverable. NRG also classifies nuclear fuel related to the Company's 44% ownership interest in STP as part of the Company's property, plant, and equipment. Significant additions or improvements extending asset lives are capitalized as incurred, while repairs and maintenance that do not improve or extend the life of the respective asset are charged to expense as incurred. Depreciation, other than nuclear fuel, is computed using the straight-line method, while nuclear fuel is amortized based on units of production over the estimated useful lives. Certain assets and their related accumulated depreciation amounts are adjusted for asset retirements and disposals with the resulting gain or loss included in cost of operations in the consolidated statements of operations.
Asset Impairments
Long-lived assets that are held and used are reviewed for impairment whenever events or changes in circumstances indicate carrying values may not be recoverable. Such reviews are performed in accordance with ASC 360. An impairment loss is indicated if the total future estimated undiscounted cash flows expected from an asset are less than its carrying value. An impairment charge is measured by the difference between an asset's carrying amount and fair value with the difference recorded in operating costs and expenses in the consolidated statements of operations. Fair values are determined by a variety of valuation methods, including third-party appraisals, sales prices of similar assets, and present value techniques.
Investments accounted for by the equity method are reviewed for impairment in accordance with ASC 323, Investments-Equity Method and Joint Ventures, or ASC 323, which requires that a loss in value of an investment that is an other-than-temporary decline should be recognized. The Company identifies and measures losses in the value of equity method investments based upon a comparison of fair value to carrying value. For further discussion of these matters, refer to Note 11, Asset Impairments.
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Development Costs and Capitalized Interest
Development costs include project development costs, which are expensed in the preliminary stages of a project and capitalized when the project is deemed to be commercially viable. Commercial viability is determined by one or a series of actions including, among others, Board of Director approval pursuant to a formal project plan that subjects the Company to significant future obligations that can only be discharged by the use of a Company asset. When a project is available for operations, capitalized interest and capitalized project development costs are reclassified to property, plant and equipment and depreciated on a straight-line basis over the estimated useful life of the project's related assets. Capitalized costs are charged to expense if a project is abandoned or management otherwise determines the costs to be unrecoverable.
Interest incurred on funds borrowed to finance capital projects is capitalized until the project under construction is ready for its intended use. The amount of interest capitalized for the years ended December 31, 2021, 2020 and 2019, was $2 million, $2 million and $3 million, respectively.
Debt Issuance Costs
Debt issuance costs are capitalized and amortized as interest expense on a basis which approximates the effective interest method over the term of the related debt. Debt issuance costs are presented as a direct deduction from the carrying amount of the related debt, or as an asset if the issuance costs relate to revolving debt agreements or certain other financing arrangements.
Intangible Assets
Intangible assets represent contractual rights held by the Company. The Company recognizes specifically identifiable intangible assets including emission allowances, customer and supply contracts, customer relationships, marketing partnerships, trade names and fuel contracts when specific rights and contracts are acquired. These intangible assets are amortized based on expected volumes, expected delivery, expected discounted future net cash flows, straight line or units of production basis. As of December 31, 2021 and 2020, the Company had accumulated amortization related to its intangible assets of $1.6 billion and $1.4 billion, respectively.
Emission allowances held-for-sale, which are included in other non-current assets on the Company's consolidated balance sheet, are not amortized; they are carried at the lower of cost or fair value and reviewed for impairment in accordance with ASC 360.
Goodwill
In accordance with ASC 350, Intangibles-Goodwill and Other, or ASC 350, the Company recognizes goodwill for the excess cost of an acquired entity over the net value assigned to assets acquired and liabilities assumed. NRG performs goodwill impairment tests annually, during the fourth quarter, and when events or changes in circumstances indicate that the carrying value may not be recoverable.
The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The more-likely-than-not threshold is defined as having a likelihood of more than 50 percent. If it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, there is no goodwill impairment.
In the absence of sufficient qualitative factors indicating that it is more-likely-than-not that no impairment occurred, the Company performs a quantitative assessment by determining the fair value of the reporting unit and comparing the fair value to its book value. If the fair value of the reporting unit exceeds its book value, goodwill of the reporting unit is not considered impaired. If the book value exceeds fair value, the Company recognizes an impairment loss equal to the difference between book value and fair value.
For further discussion of goodwill and goodwill impairment losses recognized refer to Note 12, Goodwill and Other Intangibles.
Income Taxes
The Company accounts for income taxes using the liability method in accordance with ASC 740, Income Taxes, or ASC 740, which requires that the Company use the asset and liability method of accounting for deferred income taxes and provide deferred income taxes for all significant temporary differences.
The Company has two categories of income tax expense or benefit — current and deferred, as follows:
Current income tax expense or benefit consists solely of current taxes payable less applicable tax credits, and
Deferred income tax expense or benefit is the change in the net deferred income tax asset or liability, excluding amounts charged or credited to accumulated other comprehensive income
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The Company reports some of its revenues and expenses differently for financial statement purposes than for income tax return purposes, resulting in temporary and permanent differences between the Company's financial statements and income tax returns. The tax effects of such temporary differences are recorded as either deferred income tax assets or deferred income tax liabilities in the Company's consolidated balance sheets. The Company measures its deferred income tax assets and deferred income tax liabilities using income tax rates that are expected to be in effect when the deferred tax is realized.
The Company accounts for uncertain tax positions in accordance with ASC 740, which applies to all tax positions related to income taxes. Under ASC 740, tax benefits are recognized when it is more-likely-than-not that a tax position will be sustained upon examination by the authorities. The benefit recognized from a position is the amount of benefit that has surpassed the more-likely-than-not threshold, as it is more than 50% likely to be realized upon settlement. The Company recognizes interest and penalties accrued related to uncertain tax benefits as a component of income tax expense.
In accordance with ASC 740 and as discussed further in Note 20, Income Taxes, changes to existing net deferred tax assets or valuation allowances or changes to uncertain tax benefits, are recorded to income tax (benefit)/expense.
Contract and Emission Credit Amortization
Assets and liabilities recognized through acquisitions related to the purchase and sale of energy and energy-related products in future periods for which the fair value has been determined to be significantly less or more than market are amortized to operating revenues or cost of operations over the term of each underlying contract based on actual generation and/or contracted volumes.
Emission credits represent the right to generate a specified amount of emissions, including sulfur dioxide, nitrogen oxides and carbon dioxide, over a compliance period. Emission credits held for use are amortized to cost of operations based on the weighted average cost of the allowances held.
Lease Revenue
Certain of the Company’s revenues are obtained through leases of rooftop residential solar systems, which are accounted for as operating leases in accordance with ASC 842, Leases. Pursuant to the lease agreements, the customers’ monthly payments are pre-determined fixed monthly amounts and may include an annual fixed percentage escalation to reflect the impact of utility rate increases over the lease term, which is 20 years. The Company records operating lease revenue on a straight-line basis over the life of the lease term. Certain customers made initial down payments that are being amortized over the life of the lease. The difference between the payments received and the revenue recognized is recorded as deferred revenue.
Lessor Accounting
Certain of the Company's revenues are obtained through PPAs or other contractual agreements. Many of these agreements are accounted for as operating leases under ASC 842.
Gross Receipts and Sales Taxes
In connection with its retail sales, the Company records gross receipts taxes on a gross basis in revenues and cost of operations in its consolidated statements of operations. During the years ended December 31, 2021, 2020 and 2019, the Company's revenues and cost of operations included gross receipts taxes of $184 million, $107 million and $109 million, respectively. Additionally, the Company records sales taxes collected from its taxable retail customers and remitted to the various governmental entities on a net basis; thus, there is no impact on the Company's consolidated statement of operations.
Cost of Operations
Cost of operations includes cost of fuel, purchased energy and other costs of sales, mark-to-market for economic hedging activities, contract and emission credit amortization, operations and maintenance, and other cost of operations.
Cost of Fuel, Purchased Energy and Other Cost of Sales
Cost of fuel is primarily the costs associated with procurement, transportation and storage of natural gas, oil and coal to operate the generation portfolio, which is expensed as the fuel is consumed. Purchased energy primarily relates to purchases to supply the Company's customer base, which includes spot market purchases, as well as contracts of various quantities and durations, including renewable purchased power agreements under PPAs with third-party developers, which are accounted for as NPNS (see further discussion in Derivative Financial Instruments below). Other cost of sales primarily consists of TDSP expenses.
The cost of fuel is based on actual and estimated fuel usage for the applicable reporting period. The cost to deliver energy and related services to customers is based on actual and estimated supply volumes for the applicable reporting period. A portion of the cost of energy, $189 million, $98 million and $103 million as of December 31, 2021, 2020 and 2019, respectively, was accrued and consisted of estimated transmission and distribution charges not yet billed by the transmission and distribution utilities.
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In estimating supply volumes, the Company considers the effects of historical customer volumes, weather factors and usage by customer class. Transmission and distribution delivery fees are estimated using the same method used for electricity sales and services to retail customers. In addition, ISO fees are estimated based on historical trends, estimated supply volumes and initial ERCOT ISO settlements. Volume estimates are then multiplied by the supply rate and recorded as cost of operations in the applicable reporting period.
Derivative Instruments
The Company accounts for derivative instruments under ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value and changes in fair value in earnings, unless they qualify for the NPNS exception. The Company's primary derivative instruments are power and natural gas purchase or sales contracts, fuels purchase contracts and other energy related commodities used to mitigate variability in earnings due to fluctuation in market prices. In addition, in order to mitigate foreign exchange risk associated with the purchase of USD denominated natural gas for the Company's Canadian business, NRG enters into foreign exchange contract agreements.
As of December 31, 2021 and 2020 the Company did not have derivative instruments that were designated as cash flow or fair value or hedge.
Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.
NRG's trading activities are subject to limits in accordance with the Company's Risk Management Policy. These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative instruments are recognized in earnings.
Mark-to-Market for Economic Hedging Activities
NRG enters into derivative instruments to manage price and delivery risk, optimize physical and contractual assets in the portfolio and manage working capital requirements. The mark-to-market for economic hedging activities are recognized to cost of operations during the reporting period.
Operations and Maintenance and Other Cost of Operations
Operations and maintenance costs include major and other routine preventative (planned outage) and corrective (forced outage) maintenance activities to ensure the safe and reliable operation of the Company's generation portfolio in compliance with all local, state and federal requirements. Operations and maintenance costs are also costs associated with retaining and maintaining the Company's customer base, such as call center support, portfolio maintenance and data analytics. Other cost of operations primarily includes gross receipts taxes, insurance, property taxes and asset retirement obligation expense.
Foreign Currency Translation and Transaction Gains and Losses
The local currencies are generally the functional currency of NRG's foreign operations. Foreign currency denominated assets and liabilities are translated at end-of-period rates of exchange. Revenues, expenses, and cash flows are translated at the weighted-average rates of exchange for the period. The resulting currency translation adjustments are not included in the Company's consolidated statements of operations for the period, but are accumulated and reported as a separate component of stockholders' equity until sale or complete or substantially complete liquidation of the net investment in the foreign entity takes place. Foreign currency transaction gains or losses are reported within other income/(expense) in the Company's consolidated statements of operations. For the years ended December 31, 2021, 2020 and 2019, amounts recognized as foreign currency transaction gains/(losses) were immaterial. The Company's cumulative translation adjustment balances as of December 31, 2021, 2020 and 2019 were $(8) million, $(2) million and $(13) million, respectively.
Concentrations of Credit Risk
Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of trust funds, accounts receivable, notes receivable, derivatives, and investments in debt securities. Trust funds are held in accounts managed by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated within entities engaged in the energy industry. These industry concentrations may impact the Company's overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. Receivables and other contractual arrangements are subject to collateral requirements under the terms of enabling agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification and creditworthiness of its customer base. See Note 5, Fair Value of Financial Instruments, for a further discussion of derivative concentrations.
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Fair Value of Financial Instruments
The carrying amount of cash and cash equivalents, funds deposited by counterparties, receivables, accounts payable, and accrued liabilities approximate fair value because of the short-term maturity of these instruments. See Note 5, Fair Value of Financial Instruments, for a further discussion of fair value of financial instruments.
Asset Retirement Obligations
The Company accounts for AROs in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can be made.
Upon initial recognition of a liability for an ARO, the Company capitalizes the asset retirement cost by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. See Note 14, Asset Retirement Obligations, for a further discussion of AROs.
Pensions and Other Postretirement Benefits
The Company offers pension benefits through a defined benefit pension plan. In addition, the Company provides postretirement health and welfare benefits for certain groups of employees. The Company accounts for pension and other postretirement benefits in accordance with ASC 715, Compensation — Retirement Benefits, or ASC 715. The Company recognizes the funded status of the Company's defined benefit plans in the statement of financial position and records an offset for gains and losses as well as all prior service costs that have not been included as part of the Company's net periodic benefit cost to other comprehensive income. The determination of the Company's obligation and expenses for pension benefits is dependent on the selection of certain assumptions. These assumptions determined by management include the discount rate, the expected rate of return on plan assets and the rate of future compensation increases. The Company's actuarial consultants assist in determining assumptions for such items as retirement age. The assumptions used may differ materially from actual results, which may result in a significant impact to the amount of pension obligation or expense recorded by the Company.
The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820.
Stock-Based Compensation
The Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's performance stock units is estimated on the date of grant using a Monte Carlo valuation model. NRG uses the Company's common stock price on the date of grant as the fair value of the Company's deferred stock units. The fair value of the Company's restricted stock units is derived from the closing price of NRG's common stock at the grant date. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award.
Investments Accounted for by the Equity Method
The Company has investments in various domestic energy projects, as well as one Australian project. The equity method of accounting is applied to such investments in affiliates, which include joint ventures and partnerships, because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of domestic partnerships and, generally, in the net income or losses of its Australian project, are reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.
Tax Equity Arrangements
The Company’s redeemable noncontrolling interest in subsidiaries represented third-party interests in the net assets under certain tax equity arrangements, which were consolidated by the Company, that had been entered into to finance the cost of solar energy systems under operating leases. The Company determined that the provisions in the contractual agreements of these structures represented substantive profit sharing arrangements. Further, the Company had determined that the appropriate methodology for calculating the redeemable noncontrolling interest that reflected the substantive profit sharing arrangements was a balance sheet approach that utilized the HLBV method. Under the HLBV method, the amounts reported as redeemable
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noncontrolling interests represented the amounts the investors that were party to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts. The investors’ interests in the results of operations of the funding structures were determined as redeemable noncontrolling interests at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds’ investors. The calculations utilized to apply the HLBV method included estimated calculations of taxable income or losses for each reporting period. During the first quarter of 2020, the Company repurchased its partners' equity interest, which was the Company's last remaining tax equity arrangement.
Redeemable Noncontrolling Interest
The following table reflects the changes in the Company's redeemable noncontrolling interest balance for the years ended December 31, 2020 and 2019.
(In millions)
Balance as of December 31, 2018$19 
Distributions to redeemable noncontrolling interest(2)
Net income attributable to redeemable noncontrolling interest - continuing operations
Balance as of December 31, 201920 
Repurchase of redeemable noncontrolling interest(20)
Balance as of December 31, 2020$
Sale-Leaseback Arrangements
NRG is party to sale-leaseback arrangements that provide for the sale of certain assets to a third party and simultaneously leases back the same asset to the Company. If the seller-lessee transfers control of the underlying assets to the buyer-lessor, the arrangement is accounted for under ASC 842-40, Sale-Leaseback Transactions. These arrangements are classified as operating leases on the Company's consolidated balance sheets. See Note 10, Leases, for further discussion.
Marketing and Advertising Costs
The Company expenses its marketing and advertising costs as incurred and includes them within selling, general and administrative expenses. The costs of tangible assets used in advertising campaigns are recorded as fixed assets or deferred advertising costs and amortized as advertising costs over the shorter of the useful life of the asset or the advertising campaign. The Company has several long-term sponsorship arrangements. Payments related to these arrangements are deferred and expensed over the term of the arrangement. Advertising expenses for the years ended December 31, 2021, 2020 and 2019 were $109 million, $74 million and $66 million, respectively.
Business Combinations
The Company accounts for its business combinations in accordance with ASC 805, Business Combinations, or ASC 805, which requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed, and any noncontrolling interest in the acquiree at fair value at the acquisition date. The Company also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination. In addition, transaction costs are expensed as incurred.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others. In addition, estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.
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Reclassifications
Certain prior period amounts have been reclassified for comparative purposes. The reclassifications did not affect results from operations, net assets or cash flows.
Recent Accounting Developments - Guidance Adopted in 2021
ASU 2019-12 — In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, or ASU 2019-12, to simplify various aspects related to accounting for income taxes. The guidance in ASU 2019-12 amends the general principles in Topic 740 to eliminate certain exceptions for recognizing deferred taxes for investment, performing intraperiod allocation and calculating income taxes in interim periods. This ASU also includes guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company adopted the amendments effective January 1, 2021 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, statements of cash flows, or statement of financial position.
ASU 2021-10 — In November 2021, the FASB issued ASU 2021-10, Government Assistance (Topic 832):Disclosures by Business Entities about Government Assistance, which requires additional disclosures for transactions with a government accounted for by applying a grant or contribution model by analogy, including: (i) the nature of the transactions and the related accounting policy used to account for the transactions; (ii) the line items on the balance sheet and income statement that are affected by the transactions, and the amounts applicable to each financial statement line item; and (iii) significant terms and conditions of the transactions, including commitments and contingencies. The amendments were applied prospectively to all transactions within the scope of the amendments. Early application of the new standard is permitted and the effect of the new standard only impacted the Company’s financial statement disclosures.
Recent Accounting Developments - Guidance Not Yet Adopted
ASU 2020-06 — In August 2020, the FASB issued ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40), or ASU 2020-06. The guidance in ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. In addition, ASU 2020-06 improves and amends the related earnings per share guidance. This standard is effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 using the modified retrospective approach. As a result of the provisions of the amended guidance, the Company estimates a $100 million decrease to additional paid-in capital, a $57 million decrease to debt discount, a $57 million increase to retained earnings, and a $14 million decrease to long-term deferred tax liabilities. The Company does not expect the adoptions of ASU 2020-06 to have a material impact on its statement of operations, statements of cash flows or earnings per share amounts.
ASU 2021-08 — In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, or ASU 2021-08. Under current GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers and other similar contracts that are accounted for in accordance with ASC 606, Revenue from Contracts with Customers, or ASC 606, at fair value on the acquisition date. ASU 2021-08 requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606. At the acquisition date, an acquirer should account for the related revenue contracts in accordance with ASC 606 as if it had originated the contracts, which should generally result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements. This update also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years and should be applied prospectively to business combinations occurring on or after the effective date of the amendments. Early adoption is permitted, including adoption in an interim period. Adoption during an interim period requires retrospective application to all business combinations for which the acquisition date occurs on or after the beginning of the fiscal year that includes the interim period of early application and prospectively to all business combinations that occur on or after the date of initial application. The Company does not expect the adoption of ASU 2021-08 to have a material impact on the consolidated financial statements and disclosures.



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Note 3Revenue Recognition
The Company's policies with respect to its various revenue streams are detailed below. The Company generally applies the invoicing practical expedient to recognize revenue for the revenue streams detailed below, except in circumstances where the invoiced amount does not represent the value transferred to the customer.
Retail Revenue
Gross revenues for energy sales and services to retail customers are recognized as the Company transfers the promised goods and services to the customer. For the majority of its electricity and natural gas contracts, the Company’s performance obligation with the customer is satisfied over time and performance obligations for its electricity and natural gas products are recognized as the customer takes possession of the product. The Company also allocates the contract consideration to distinct performance obligations in a contract for which the timing of the revenue recognized is different. Additionally, customer discounts and incentives reduce the contract consideration and are recognized over the term of the contract.
Energy sales and services that have been delivered but not billed by period end are estimated. Accrued unbilled revenues are based on estimates of customer usage since the date of the last meter reading provided by the independent system operators, utilities, or electric distribution companies. Volume estimates are based on daily forecasted volumes and estimated customer usage by class. Unbilled revenues are calculated by multiplying these volume estimates by the applicable rate by customer class. Estimated amounts are adjusted when actual usage is known and billed.
As contracts for retail electricity and natural gas can be for multi-year periods, the Company has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other contract-specific factors. For the fixed price contracts, the amount of any unsatisfied performance obligations will vary based on customer usage, which will depend on factors such as weather and customer activity and therefore it is not practicable to estimate such amounts.
Energy Revenue
Both physical and financial transactions consist of revenues billed to a third party at either market or negotiated contract terms to optimize the financial performance of the Company's generating facilities. Electric energy revenue is recognized upon transmission to the customer over time, using the output method for measuring progress of satisfaction of performance obligations. Physical transactions, or the sale of generated electricity to meet supply and demand, are recorded on a gross basis in the Company's consolidated statements of operations. The Company applies the invoicing practical expedient in recognizing energy revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date. Financial transactions used to hedge the sale of electricity are recorded net within operating revenues in the consolidated statements of operations in accordance with ASC 815.
Ancillary revenues, included in Other revenue, are recognized over time as the obligation is fulfilled, using the output method for measuring progress of satisfaction of performance obligations.
CapacityRevenue
The Company's largest sources of capacity revenues are capacity auctions in PJM, ISO-NE and NYISO. Capacity revenues also include revenues billed to a third party at either market or negotiated contract terms for making installed generation and demand response capacity available in order to satisfy system integrity and reliability requirements. Capacity revenues are recognized over time, using the output method for measuring progress of satisfaction of performance obligations. The Company applies the invoicing practical expedient in recognizing capacity revenue. Under the practical expedient, revenue is recognized based on the invoiced amount which is equal to the value to the customer of NRG’s performance obligation completed to date.
Performance Obligations
As of December 31, 2021, estimated future fixed fee performance obligations are $258 million, $48 million and $1 million for fiscal years 2022, 2023 and 2024, respectively. These performance obligations are for cleared auction MWs in the PJM, ISO-NE, NYISO and MISO capacity auctions and are subject to penalties for non-performance.
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Disaggregated Revenue
The following tables represent the Company’s disaggregation of revenue from contracts with customers for the years ended December 31, 2021, 2020 and 2019:
For the Year Ended December 31, 2021
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,665 $1,959 $2,053 $(1)$9,676 
Business2,745 9,903 1,237 — 13,885 
Total retail revenue8,410 11,862 3,290 (1)23,561 
Energy revenue(c)
329 508 371 1,215 
Capacity revenue(c)
— 718 57 — 775 
Mark-to-market for economic hedging activities(d)
(3)(88)(86)13 (164)
Contract amortization— (26)(4)— (30)
Other revenue(b)(c)
1,557 59 25 (9)1,632 
Total operating revenue10,293 13,033 3,653 10 26,989 
Less: Lease revenue— — 
Less: Realized and unrealized ASC 815 revenue130 184 (96)16 234 
Less: Contract amortization— (26)(4)— (30)
Total revenue from contracts with customers$10,163 $12,874 $3,746 $(6)$26,777 
(a) Home includes Services
(b) Other Revenue in Texas includes ancillary revenues of $1.3 billion driven by high pricing during Winter Storm Uri
(c) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $131 $$$136 
Capacity revenue— 149 — — 149 
Other revenue133 (8)(12)— 113 
(d) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
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For the Year Ended December 31, 2020
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,210 $96 $(2)$6,331 
Business1,034 95 — — 1,129 
Total retail revenue6,061 1,305 96 (2)7,460 
Energy revenue(b)
24 183 333 (1)539 
Capacity revenue(b)
— 620 61 (1)680 
Mark-to-market for economic hedging activities(c)
88 (3)95 
Other revenue(b)
222 62 43 (8)319 
Total operating revenue6,309 2,258 530 (4)9,093 
Less: Lease revenue— 17 — 18 
Less: Realized and unrealized ASC 815 revenue30 314 38 385 
Total revenue from contracts with customers$6,279 $1,943 $475 $(7)$8,690 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$— $67 $43 $(5)$105 
Capacity revenue— 156 — — 156 
Other revenue28 (2)— 29 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815
For the Year Ended December 31, 2019
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Retail revenue
Home(a)
$5,027 $1,173 $57 $(3)$6,254 
Business1,205 74 — — 1,279 
Total retail revenue6,232 1,247 57 (3)7,533 
Energy revenue(b)
529 322 318 — 1,169 
Capacity revenue(b)
— 664 36 — 700 
Mark-to-market for economic hedging activities(c)
47 (29)16 (1)33 
Other revenue(b)
261 58 70 (3)386 
Total operating revenue7,069 2,262 497 (7)9,821 
Less: Lease revenue— 19 — 20 
Less: Realized and unrealized ASC 815 revenue1,562 183 67 (2)1,810 
Total revenue from contracts with customers$5,507 $2,078 $411 $(5)$7,991 
(a) Home includes Services
(b) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)TexasEastWest/Services/OtherCorporate/EliminationsTotal
Energy revenue$1,459 $98 $39 $(1)$1,595 
Capacity revenue— 109 — — 109 
Other revenue56 12 — 73 
(c) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

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ContractBalances
The following table reflects the contract assets and liabilities included in the Company's balance sheet as of December 31, 2021 and 2020:
(In millions)December 31, 2021December 31, 2020
Deferred customer acquisition costs$133 $113 
Accounts receivable, net - Contracts with customers3,057 866 
Accounts receivable, net - Derivative instruments182 33 
Accounts receivable, net - Affiliate
Total accounts receivable, net$3,245 $904 
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)$1,574 $393 
Deferred revenues (a)
$227 $60 
(a) Deferred revenues from contracts with customers for the years ended December 31, 2021 and 2020 were approximately $224 million and $31 million, respectively
The revenue recognized from contracts with customers during the years ended December 31, 2021 and 2020 relating to the deferred revenue balance at the beginning of each period was $23 million and $13 million, respectively. The change in deferred revenue balances during the years ended December 31, 2021 and 2020 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.
The Company's customer acquisition costs consist of broker fees, commission payments and other costs that represent incremental costs of obtaining the contract with customers for which the Company expects to recover. The Company amortizes these amounts over the estimated life of the customer contract. As a practical expedient, the Company expenses the incremental costs of obtaining a contract if the amortization period of the asset would have been one year or less.
When the Company receives consideration from the customer that is in excess of the amount due, such consideration is reclassified to deferred revenue, which represents a contract liability. Generally, the Company will recognize revenue from contract liabilities in the next period as the Company satisfies its performance obligations.

Note 4 —Acquisitions, Discontinued Operations and Dispositions
Acquisitions
Direct Energy Acquisition
On January 5, 2021 (the "Acquisition Closing Date"), the Company acquired all of the issued and outstanding common shares of Direct Energy, which had been a North American subsidiary of Centrica plc. Direct Energy is a leading retail provider of electricity, natural gas, and home and business energy related products and services in North America, with operations in all 50 U.S. states and 8 Canadian provinces. The acquisition increased NRG's retail portfolio by over 3 million customers and strengthens its integrated model. It also broadens the Company's presence in the Northeast and into states and locales where it did not previously operate, supporting NRG's objective to diversify its business.
The Company paid an aggregate purchase price of $3.625 billion in cash, subject to a purchase price adjustment of $77 million. The Company funded the purchase price using a combination of $715 million of cash on hand, $166 million from a draw on its Revolving Credit Facility (of which $107 million was used to fund acquisition costs and financing fees that are not included in the aggregate purchase price above) as well as approximately $2.9 billion in secured and unsecured corporate debt issued in December 2020. The final purchase price adjustment resulted in additional payment of $22 million, which was paid in December 2021.
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The Company also increased its collective collateral facilities by $3.4 billion as of the Acquisition Closing Date to meet the additional liquidity requirements related to the acquisition, as detailed in the following table:
(In millions)
Available on Acquisition Closing Date
Revolving Credit Facility commitment increase$802 
Revolving Credit Facility new tranche273
Facility agreement in connection with the sale of pre-capitalized trust securities874
Available as of December 31, 2020
Credit default swap facility150
Revolving accounts receivable financing facility750
Repurchase facility75
Bilateral letter of credit facilities475
Total Increases to Liquidity and Collateral Facilities$3,399 
For further discussion see Note 13, Long-term Debt and Finance Leases.
Acquisition costs of $25 million and $17 million for the years ended December 31, 2021 and 2020, respectively, are included in acquisition-related transaction and integration costs in the Company's consolidated statement of operations.
The acquisition has been recorded as a business combination under ASC 805 with identifiable assets acquired and liabilities assumed recorded at their estimated fair values on the acquisition date. The purchase price is allocated as follows:
(In millions)
Current Assets
Cash and cash equivalents$152 
Funds deposited by counterparties21 
Restricted cash
Accounts receivable, net1,802 
Inventory106 
Derivative instruments1,014 
Cash collateral paid in support of energy risk management activities233 
Prepayments and other current assets173 
Total current assets3,510 
Property, plant and equipment, net151 
Other Assets
Goodwill(a)
1,250 
Intangible assets, net:
    Customer relationships(b)
1,277 
    Customer and supply contracts(b)
610 
    Trade names(b)
310 
    Renewable energy credits124 
Total intangible assets, net2,321 
Derivative instruments531 
Other non-current assets31 
Total other assets4,133 
Total Assets$7,794 
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(In millions)
Current Liabilities
Accounts payable$1,116 
Derivative instruments1,266 
Cash collateral received in support of energy risk management activities21 
Accrued expenses and other current liabilities670 
Total current liabilities3,073 
Other Liabilities
Derivative instruments562 
Deferred income taxes320 
Other non-current liabilities115 
Total other liabilities997 
Total Liabilities$4,070 
Direct Energy Purchase Price$3,724 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Direct Energy with NRG's existing businesses. Goodwill was allocated to the Texas, East, and West/Services/Other segments of $427 million, $648 million , and $175 million, respectively. Goodwill expected to be deductible for tax purposes is $322 million
(b)The weighted average amortization period for total amortizable intangible assets is 12 years

Measurement Period Adjustments
The following measurement period adjustments were recognized during the quarter ended December 31, 2021:
(In millions)
Assets
Prepayments and other current assets$(10)
Goodwill(7)
    Total decrease in assets$(17)
Liabilities
Accounts payable$(4)
Accrued expenses and other current liabilities(20)
Deferred income taxes(18)
   Total decrease in liabilities$(42)
Net measurement period adjustments$25 
The measurement period adjustments are attributable primarily to refinement of the underlying assumptions used to estimate the fair value of assets acquired and liabilities assumed as more information was obtained about facts and circumstances that existed as of the Acquisition Closing Date.
Fair Value Measurement of Intangible Assets
The fair values of intangible assets as of the Acquisition Closing Date were measured primarily based on significant inputs that are observable and unobservable in the market and thus represent Level 2 and Level 3 measurements, respectively. Significant inputs were as follows:
Customer relationships Customer relationships, reflective of Direct Energy’s customer base, were valued using an excess earning method of the income approach. Under this approach, the Company estimated the present value of expected future cash flows resulting from existing customer relationships, considering attrition and charges for contributory assets (such as net working capital, fixed assets, workforce and trade names) utilized in the business, discounted at an independent power producer peer group’s weighted average cost of capital. The customer relationships are amortized to depreciation and amortization, ratably based on discounted future cash flows. The weighted average amortization period is 12 years.
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Customer and supply contracts The fair value of in-market and out-of-market customer and supply contracts were estimated based on contractual terms compared to market prices as of the Acquisition Closing Date. The majority of the contracts were valued using prices provided by external sources, primarily price quotations available through broker or over-the-counter and online exchanges. For contracts for which external sources or observable market quotes were not available, these values were based on valuation techniques including, but not limited to, internal models based on fundamental analysis of the market and extrapolation of the observable market data with similar characteristics. In addition, the Company applied a credit reserve to reflect credit risk, which is calculated based on published default probabilities. The customer and supply contracts are amortized to revenue and cost of operations, respectively, based upon the fair market value, as of the acquisition date, for each delivery month. The weighted average amortization period is 14 years.
Trade names Trade names were valued using a "relief from royalty" method of the income approach. Under this approach, the fair value is estimated to be the present value of royalties saved because NRG owns the intangible asset and therefore does not have to pay a royalty for its use. The trade names are amortized to depreciation and amortization, on a straight line basis, over a weighted average amortization period of 15 years.
Renewable energy credits Renewable energy credits were valued based on the market prices as of the Acquisition Closing Date. Renewable energy credits are retired, as required, for the applicable compliance period. They are expensed to cost of operations based on customer usage.
Fair Value Measurement of Derivative Assets and Liabilities
The fair values of derivatives assets and liabilities as of the Acquisition Closing Date were as follows:
Fair Value
(In millions)TotalLevel 1Level 2Level 3
Derivatives assets$1,545 $155 $1,272 $118 
Derivatives liabilities1,828 207 1,489 132 
Refer to Note 5, Fair Value of Financial Instruments for discussion on derivative fair value measurements.
Supplemental Information
For the Year Ended December 31, 2021 Direct Energy contributed revenue and income before income taxes of $15.6 billion and $2.4 billion, respectively.
Supplemental Unaudited Pro Forma Financial Information
The following table provides unaudited pro forma combined financial information of NRG and Direct Energy, after giving effect to the Direct Energy acquisition and related financing transactions as if they had occurred on January 1, 2019. The pro forma financial information has been prepared for illustrative and informational purposes only, and is not intended to project future operating results or indicative of what our financial performance would have been had the transactions occurred on the date assumed. No effect has been given to operating synergies.
For the Year Ended December 31,
(In millions)202120202019
Total operating revenues$26,987 $21,326 $23,673 
Income from continuing operations2,225 471 3,623 

Amounts above reflect certain pro forma adjustments that were directly attributable to the Direct Energy acquisition. These adjustments include the following:
(i) Income statement effects of fair value adjustments based on the purchase price allocation including amortization of intangible assets, depreciation of property, plant and equipment and lease expense.
(ii) Interest expense assumes the financing transactions directly attributable to the Direct Energy acquisition occurred on January 1, 2019.
(iii) Removal of Direct Energy historical interest expense associated with related party notes receivable/payable between Direct Energy and Centrica and its subsidiaries, as those notes are assumed to be repaid as of January 1, 2019.
(iv) Elimination of transactions between NRG and Direct Energy.
(v) Adjustments to reflect all acquisition costs occurring during the year ended December 31, 2019.
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(vi) Tax effects of pro forma adjustments on all periods presented and shifting the recognition of one time tax benefits resulting from the acquisition from the year ended December 31, 2021 to the year ended December 31, 2019.
Midwest Generation Lease PurchaseOn September 29, 2020, Midwest Generation acquired all of the ownership interests in the Powerton facility and Units 7 and 8 of the Joliet facility, which were being leased through 2034 and 2030, respectively, for approximately $260 million. The purchase was funded with cash-on-hand. Upon closing, lease expense related to these facilities, which totaled approximately $14 million in 2019, and the operating lease liability of $148 million were eliminated.
Stream Energy Acquisition — On August 1, 2019, the Company completed the acquisition of Stream Energy's retail electricity and natural gas business operating in 9 states and Washington, D.C. for $329 million, including working capital and other adjustments of approximately $29 million. The acquisition increased NRG's retail portfolio by approximately 600,000 RCEs or 450,000 customers.
The purchase price was allocated as follows:
(In millions)
Account receivable$98 
Accounts payable(73)
Other net current and non-current working capital
Marketing partnership154 
Customer relationships85 
Trade name28 
Other intangible assets26 
Goodwill (a)
 Stream Purchase Price$329 
(a)Goodwill arising from the acquisition is attributed to the value of the platform acquired and the synergies expected from combining the operations of Stream Energy with NRG's existing businesses. Goodwill of $5 million and $1 million was assigned to the Texas and East segments, respectively, and is not deductible for tax purposes
Dispositions
Sale of 4,850 MW of Fossil generating assets
On December 1, 2021, the Company closed the previously announced sale of approximately 4,850 MWs of fossil generating assets from its East and West regions to Generation Bridge, an affiliate of ArcLight Capital Partners. Proceeds of $760 million were reduced by working capital and other adjustments of $137 million, resulting in net proceeds of $623 million. The Company recorded a gain of $210 million from the sale, which includes the $39 million indemnification liability recorded as discussed below. As part of the transaction, NRG entered into a tolling agreement for the 866 MW Arthur Kill plant in New York City through April 2025.
As part of the agreement to sell the fossil generating assets, NRG has agreed to indemnify Generation Bridge for certain future environmental compliance costs up to $39 million. The indemnity term will expire on December 1, 2028. The Company has recorded the liability within accrued expenses and other current liabilities and other non-current liabilities.
Sale of Agua Caliente
On February 3, 2021, the Company closed on the sale of its 35% ownership in the Agua Caliente solar project to Clearway Energy, Inc. for $202 million. NRG recognized a gain on the sale of $17 million, including cash disposed of $7 million.
Sale of Home Solar
In the third quarter of 2020, the Company concluded its Home Solar business was held for sale and recorded an impairment loss of $29 million, as further discussed in Note 11, Asset Impairments. On November 13, 2020, the Company completed the sale of the Home Solar business for cash proceeds of $66 million, resulting in a $2 million loss on the sale. In connection with the sale, the Company extinguished debt of $27 million and recognized a $5 million loss on the extinguishment.
Company completed other asset sales for cash proceeds of $12 million and $15 million during the years ended December 31, 2021 and 2020, respectively.
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Discontinued Operations
Sale of South Central Portfolio
On February 4, 2019, the Company completed the sale of its South Central Portfolio to Cleco for cash consideration of $1 billion excluding working capital and other adjustments. The Company concluded that the divested business met the criteria for discontinued operations, as the disposition represented a strategic shift in the business in which NRG operates. In connection with the transaction, NRG also entered into a transition services agreement to provide certain corporate services to the divested business, which have been substantially completed in 2020.
The South Central Portfolio includes the 1,177 MW Cottonwood natural gas generating facility. Upon the closing of the sale of the South Central Portfolio, NRG entered into a lease agreement with Cleco to leaseback the Cottonwood facility through 2025. Due to its continuing involvement with the Cottonwood facility, NRG did not use held-for-sale or discontinued operations treatment in accounting for the Cottonwood facility.
Summarized results of South Central discontinued operations for the year ended December 31, 2019 were as follows:
(In millions)
Operating revenues$31 
Operating costs and expenses(23)
Gain from operations of discontinued components8
Gain on disposal of discontinued operations, net of tax20 
Gain from discontinued operations, including disposal, net of tax$28
Sale of Ownership in NRG Yield, Inc. and its Renewables Platform
On August 31, 2018, the Company completed the sale of its ownership interests in NRG Yield, Inc. and its Renewables Platform to GIP for total cash consideration of $1.348 billion. The Company concluded that the divested businesses met the criteria for discontinued operations, as the dispositions represented a strategic shift in the business in which NRG operates. In connection with the transaction, NRG entered into a transition services agreement to provide certain corporate services to the divested businesses in 2018, which concluded in 2020. During the year ended December 31, 2019, the Company recorded an adjustment to reduce the purchase price by $15 million in connection with the completion of the Patriot Wind project. During the year ended December 31, 2019, the Company reduced the liability related to the indemnification of NRG Yield for any increase in property taxes for certain solar properties by $22 million due to updated estimates.
Carlsbad
On February 6, 2018, NRG entered into an agreement with NRG Yield and GIP to sell 100% of its membership interests in Carlsbad Energy Holdings LLC, which owns the Carlsbad project, for $385 million of cash consideration, excluding working capital adjustments. The primary condition to close the Carlsbad transaction was the completion of the sale of NRG Yield and the Renewables Platform.At the time of the sale of NRG Yield and the Renewables Platform in August 2018, the Company concluded that the Carlsbad project met the criteria for discontinued operations and accordingly, all current and prior period results for Carlsbad were reclassified as discontinued operations. The transaction closed on February 27, 2019. Carlsbad will continue to have a ground lease and easement agreement with NRG with an initial term ending in 2039 and 2 ten-year extensions. As a result of the transaction, additional commitments related to the project totaled $23 million as of December 31, 2021 and December 31, 2020.
Summarized results of NRG Yield, Inc. and Renewables Platform and Carlsbad discontinued operations for the year ended December 31, 2019 were as follows:
(In millions)
Operating revenues$19 
Operating costs and expenses(9)
Other expenses(5)
Gain/(loss) from discontinued operations, net of tax5
Gain/(loss) on disposal of discontinued operations, net of tax265 
Income/(expense) from California property tax indemnification22 
Income/(expense) from other commitments, indemnification and fees
Income/(loss) on disposal of discontinued operations, net of tax291
Income/(loss) from discontinued operations, net of tax$296
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GenOn
On June 14, 2017, the GenOn Entities filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the Texas Bankruptcy Court. As a result of the bankruptcy filings, NRG concluded that it no longer controlled GenOn as it was subject to the control of the Texas Bankruptcy Court; and accordingly, NRG deconsolidated GenOn and its subsidiaries for financial reporting purposes as of such date. For the Year Ended December 31, 2019 NRG recorded $3 million loss from discontinued operations, net of tax for GenOn results of operations.

Note 5 — Fair Value of Financial Instruments
For cash and cash equivalents, funds deposited by counterparties, restricted cash, accounts and other receivables, accounts payable, restricted cash, and cash collateral paid and received in support of energy risk management activities, the carrying amount approximates fair value because of the short-term maturity of those instruments and are classified as Level 1 within the fair value hierarchy.
The estimated carrying value and fair value of the Company's long-term debt, including current portion, is as follows:
 As of December 31,
20212020
(In millions)Carrying AmountFair ValueCarrying AmountFair Value
Long-term debt, including current portion (a)
$8,040 $8,327 $8,781 $9,446 
(a) Excludes deferred financing costs, which are recorded as a reduction to long-term debt on the Company's consolidated balance sheets
The fair value of the Company's publicly-traded long-term debt is based on quoted market prices and is classified as Level 2 within the fair value hierarchy.
Fair Value Accounting under ASC 820
ASC 820 establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows:
Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access as of the measurement date. NRG's financial assets and liabilities utilizing Level 1 inputs include active exchange-traded securities, energy derivatives, and trust fund investments.
Level 2 — inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data. NRG's financial assets and liabilities utilizing Level 2 inputs include fixed income securities, exchange-based derivatives, and over the counter derivatives such as swaps, options and forward contracts.
Level 3 — unobservable inputs for the asset or liability only used when there is little, if any, market activity for the asset or liability at the measurement date. NRG's financial assets and liabilities utilizing Level 3 inputs include infrequently-traded, non-exchange-based derivatives and commingled investment funds, and are measured using present value pricing models.
In accordance with ASC 820, the Company determines the level in the fair value hierarchy within which each fair value measurement in its entirety falls, based on the lowest level input that is significant to the fair value measurement in its entirety.
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Recurring Fair Value Measurements
Debt securities, equity securities, and trust fund investments, which are comprised of various U.S. debt and equity securities, and derivative assets and liabilities, are carried at fair market value.
The following tables present assets and liabilities measured and recorded at fair value on the Company's consolidated balance sheets on a recurring basis and their level within the fair value hierarchy:
 As of December 31, 2021
 Fair Value
(In millions)TotalLevel 1Level 2Level 3
Investments in securities (classified within other current and non-current assets)$32 $15 $17 $— 
Nuclear trust fund investments: 
Cash and cash equivalents33 33 — — 
U.S. government and federal agency obligations112 111 — 
Federal agency mortgage-backed securities100 — 100 — 
Commercial mortgage-backed securities44 — 44 — 
Corporate debt securities122 — 122 — 
Equity securities494 494 — — 
Foreign government fixed income securities— — 
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations— — 
Derivative assets: 
Foreign exchange contracts— — 
Commodity contracts7,139 981 5,701 457 
Measured using net asset value practical expedient:
Equity securities-nuclear trust fund investments99 000
Equity securities (classified within other non-current assets)000
Total assets$8,188 $1,635 $5,990 $457 
Derivative liabilities: 
Foreign exchange contracts$$— $$— 
Commodity contracts$4,798 $626 $4,008 $164 
Total liabilities$4,799 $626 $4,009 $164 
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 As of December 31, 2020
 Fair Value
(In millions)TotalLevel 1Level 2Level 3
Investments in securities (classified within other current or non-current assets)$25 $10 $15 $— 
Nuclear trust fund investments:
Cash and cash equivalents23 23 — — 
U.S. government and federal agency obligations70 69 — 
Federal agency mortgage-backed securities89 — 89 — 
Commercial mortgage-backed securities36 — 36 — 
Corporate debt securities144 — 144 — 
Equity securities434 434 — — 
Foreign government fixed income securities— 
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations— — 
Derivative assets:
Commodity contracts821 59 623 139 
Measured using net asset value practical expedient:
Equity securities-nuclear trust fund investments87 000
Equity securities (classified within other non-current assets)000
Total assets$1,745 $597 $914 $139 
Derivative liabilities:
Commodity contracts$884 $86 $643 $155 
Total liabilities$884 $86 $643 $155 

The following tables reconcile, for the years ended December 31, 2021 and 2020, the beginning and ending balances for financial instruments that are recognized at fair value in the consolidated financial statements at least annually using significant unobservable inputs:
For the Year Ended December 31, 2021
Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(In millions)
Derivatives (a)
Beginning balance as of January 1, 2021$(16)
Contracts added from Direct Energy acquisition(15)
Total gains realized/unrealized included in earnings145 
Purchases93 
Transfers into Level 3 (b)
71 
Transfers out of Level 3 (b)
15 
Ending balance as of December 31, 2021$293 
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of December 31, 2021$120 
(a)Consists of derivatives assets and liabilities, net
(b)Transfers into/out of Level 3 are related to the availability of external broker quotes, and are valued as of the end of the reporting period. All transfers into/out of Level 3 are from/to Level 2
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For the Year Ended December 31, 2020
Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(In millions)
Derivatives (a)
Beginning balance as of January 1, 2020$38 
Total (losses) realized/unrealized included in earnings(44)
Purchases(13)
Transfers into Level 3 (b)
Transfers out of Level 3 (b)
Ending balance as of December 31, 2020$(16)
Gains for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held as of December 31, 2020$
(a)Consists of derivatives assets and liabilities, net
(b)Transfers into/out of Level 3 are related to the availability of external broker quotes, and are valued as of the end of the reporting period. All transfers into/out of Level 3 are from/to Level 2
Realized and unrealized gains and losses included in earnings that are related to the energy derivatives are recorded in operating revenues and cost of operations.
Non-derivative fair value measurements
NRG's investments in debt securities are classified as Level 3 and consist of non-traded debt instruments that were valued based on third-party market value assessments.
The trust fund investments are held primarily to satisfy NRG's nuclear decommissioning obligations. These trust fund investments hold debt and equity securities directly and equity securities indirectly through commingled funds. The fair values of equity securities held directly by the trust funds are based on quoted prices in active markets and are categorized in Level 1. In addition, U.S. government and federal agency obligations are categorized as Level 1 because they trade in a highly liquid and transparent market. The fair values of corporate debt securities are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized in Level 2. Certain equity securities, classified as commingled funds, are analogous to mutual funds, are maintained by investment companies, and hold certain investments in accordance with a stated set of fund objectives. The fair value of the equity securities classified as commingled funds are based on net asset values per fund share (the unit of account), derived from the quoted prices in active markets of the underlying equity securities. However, because the shares in the commingled funds are not publicly quoted, not traded in an active market and are subject to certain restrictions regarding their purchase and sale, the commingled funds are measured using net asset value practical expedient. See also Note 7, Nuclear Decommissioning Trust Fund.
Derivative fair value measurements
A portion of the Company's contracts are exchange-traded contracts with readily available quoted market prices. A majority of NRG's contracts are non-exchange-traded contracts valued using prices provided by external sources, primarily price quotations available through brokers or over-the-counter and on-line exchanges. For the majority of NRG markets, the Company receives quotes from multiple sources. To the extent that NRG receives multiple quotes, the Company's prices reflect the average of the bid-ask mid-point prices obtained from all sources that NRG believes provide the most liquid market for the commodity. If the Company receives one quote, then the mid-point of the bid-ask spread for that quote is used. The terms for which such price information is available vary by commodity, region and product. A significant portion of the fair value of the Company's derivative portfolio is based on price quotes from brokers in active markets who regularly facilitate those transactions and the Company believes such price quotes are executable. The Company does not use third party sources that derive price based on proprietary models or market surveys. The remainder of the assets and liabilities represents contracts for which external sources or observable market quotes are not available. These contracts are valued based on various valuation techniques including but not limited to internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Contracts valued with prices provided by models and other valuation techniques make up 6% of derivative assets and 3% of derivative liabilities. The fair value of each contract is discounted using a risk free interest rate. In addition, the Company applies a credit reserve to reflect credit risk, which for foreign exchange contracts and interest rate swaps is calculated utilizing the bilateral method based on published default probabilities. For commodities, to the extent that NRG's net exposure under a specific master agreement is an asset, the Company uses the counterparty's default swap rate. If the exposure under a specific master agreement is a liability, the Company uses NRG's default swap rate. For foreign exchange contracts, interest rate swaps and commodities, the credit reserve is added to the
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discounted fair value to reflect the exit price that a market participant would be willing to receive to assume NRG's liabilities or that a market participant would be willing to pay for NRG's assets. As of December 31, 2021 the credit reserve resulted in a $11 million decrease primarily within cost of operations. As of December 31, 2020 the credit reserve resulted in $2 million increase primarily within cost of operations.
The fair values in each category reflect the level of forward prices and volatility factors as of December 31, 2021, and may change as a result of changes in these factors. Management uses its best estimates to determine the fair value of commodity and derivative contracts NRG holds and sells. These estimates consider various factors including closing exchange and over-the-counter price quotations, time value, volatility factors and credit exposure. It is possible, however, that future market prices could vary from those used in recording assets and liabilities from energy marketing and trading activities and such variations could be material.
NRG's significant positions classified as Level 3 include physical and financial natural gas and power executed in illiquid markets as well as financial transmission rights, or FTRs. The significant unobservable inputs used in developing fair value include illiquid natural gas and power location pricing which is derived as a basis to liquid locations. The basis spread is based on observable market data when available or derived from historic prices and forward market prices from similar observable markets when not available. For FTRs, NRG uses the most recent auction prices to derive the fair value.
The following tables quantify the significant unobservable inputs used in developing the fair value of the Company's Level 3 positions as of December 31, 2021 and 2020:
Significant Unobservable Inputs
December 31, 2021
Fair ValueInput/Range
(In millions)AssetsLiabilitiesValuation TechniqueSignificant Unobservable InputLowHighWeighted Average
Natural Gas Contracts$16 $Discounted Cash FlowForward Market Price (per MMBtu)$$40 $15 
Power Contracts392 121 Discounted Cash FlowForward Market Price (per MWh)212 35 
FTRs49 42 Discounted Cash FlowAuction Prices (per MWh)(122)43 
$457 $164 
Significant Unobservable Inputs
December 31, 2020
Fair ValueInput/Range
(In millions)AssetsLiabilitiesValuation TechniqueSignificant Unobservable InputLowHighWeighted Average
Power Contracts$111 $143 Discounted Cash FlowForward Market Price (per MWh)$10 $105 $21 
FTRs28 12 Discounted Cash FlowAuction Prices (per MWh)(28)43 
$139 $155 
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The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable inputs as of December 31, 2021 and 2020:
Significant Unobservable InputPositionChange In InputImpact on Fair Value Measurement
Forward Market Price Natural Gas/ PowerBuyIncrease/(Decrease)Higher/(Lower)
Forward Market Price Natural Gas/PowerSellIncrease/(Decrease)Lower/(Higher)
FTR PricesBuyIncrease/(Decrease)Higher/(Lower)
FTR PricesSellIncrease/(Decrease)Lower/(Higher)
Under the guidance of ASC 815, entities may choose to offset cash collateral posted or received against the fair value of derivative positions executed with the same counterparties under the same master netting agreements. The Company has chosen not to offset positions as defined in ASC 815. As of December 31, 2021, the Company recorded $291 million of cash collateral posted and $845 million of cash collateral received on its balance sheet.
Concentration of Credit Risk
In addition to the credit risk discussion as disclosed in Note 2, Summary of Significant Accounting Policies, the following item is a discussion of the concentration of credit risk for the Company's financial instruments. Credit risk relates to the risk of loss resulting from non-performance or non-payment by counterparties pursuant to the terms of their contractual obligations. The Company monitors and manages credit risk through credit policies that include: (i) an established credit approval process; (ii) a daily monitoring of counterparties' credit limits; (iii) the use of credit mitigation measures such as margin, collateral, prepayment arrangements, or volumetric limits; (iv) the use of payment netting agreements; and (v) the use of master netting agreements that allow for the netting of positive and negative exposures of various contracts associated with a single counterparty. Risks surrounding counterparty performance and credit could ultimately impact the amount and timing of expected cash flows. The Company seeks to mitigate counterparty risk by having a diversified portfolio of counterparties. The Company also has credit protection within various agreements to call on additional collateral support if and when necessary. Cash margin is collected and held at the Company to cover the credit risk of the counterparty until positions settle.
Counterparty Credit Risk
As of December 31, 2021, counterparty credit exposure, excluding credit exposure from RTOs, ISOs, and registered commodity exchanges and certain long-term agreements, was $2.2 billion and NRG held collateral (cash and letters of credit) against those positions of $598 million, resulting in a net exposure of $1.6 billion. NRG periodically receives collateral from counterparties in excess of their exposure. Collateral amounts shown include such excess while net exposure shown excludes excess collateral received. Approximately 87% of the Company's exposure before collateral is expected to roll off by the end of 2023. Counterparty credit exposure is valued through observable market quotes and discounted at a risk free interest rate. The following tables highlight net counterparty credit exposure by industry sector and by counterparty credit quality. Net counterparty credit exposure is defined as the aggregate net asset position for NRG with counterparties where netting is permitted under the enabling agreement and includes all cash flow, mark-to-market and NPNS, and non-derivative transactions. The exposure is shown net of collateral held, and includes amounts net of receivables or payables.
Category
Net Exposure (a) (b)
(% of Total)
Utilities, energy merchants, marketers and other67 %
Financial institutions33 
Total100 %
Category
Net Exposure (a) (b)
(% of Total)
Investment grade55 %
Non-Investment grade/Non-Rated45 
Total100 %
(a)Counterparty credit exposure excludes uranium and coal transportation contracts because of the unavailability of market prices
(b)The figures in the tables above exclude potential counterparty credit exposure related to RTOs, ISOs, registered commodity exchanges and certain long term contracts
The Company currently has no exposure to wholesale counterparties in excess of 10% of the total net exposure discussed above as of December 31, 2021. Changes in hedge positions and market prices will affect credit exposure and counterparty concentration.
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During Winter Storm Uri, the Company experienced nonperformance by a counterparty in one of its bilateral financial hedging transactions, resulting in exposure of $403 million. The Company is pursuing all means available to enforce its rights under this transaction but, given the size of the exposure, cannot determine with certainty what the amount of its ultimate recovery will be. The full exposure was recorded as a provision for credit losses during the year ended December 31, 2021.
RTOs and ISOs
The Company participates in the organized markets of CAISO, ERCOT, ISO-NE, MISO, NYISO and PJM, known as RTOs or ISOs. Trading in these markets is approved by FERC, or in the case of ERCOT, approved by the PUCT and includes credit policies that, under certain circumstances, require that losses arising from the default of one member on spot market transactions be shared by the remaining participants. As a result, the counterparty credit risk to these markets is limited to NRG’s share of overall market and are excluded from the above exposures.
Exchange Traded Transactions
The Company enters into commodity transactions on registered exchanges, notably ICE, NYMEX and Nodal. These clearinghouses act as the counterparty and transactions are subject to extensive collateral and margining requirements. As a result, these commodity transactions have limited counterparty credit risk.
Long-Term Contracts
Counterparty credit exposure described above excludes credit risk exposure under certain long term contracts, primarily solar PPAs. As external sources or observable market quotes are not available to estimate such exposure, the Company values these contracts based on various techniques including, but not limited to, internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. Based on these valuation techniques, as of December 31, 2021, aggregate credit risk exposure managed by NRG to these counterparties was approximately $1.1 billion for the next five years.
Retail Customer Credit Risk
The Company is exposed to retail credit risk through the Company's retail electricity and gas providers, which serve Home and Business customers. Retail credit risk results in losses when a customer fails to pay for services rendered. The losses may result from both nonpayment of customer accounts receivable and the loss of in-the-money forward value. The Company manages retail credit risk through the use of established credit policies that include monitoring of the portfolio and the use of credit mitigation measures such as deposits or prepayment arrangements.
As of December 31, 2021, the Company's retail customer credit exposure to Home and Business customers was diversified across many customers and various industries, as well as government entities. The Company is also subject to risk with respect to its residential solar customers. The Company's provision for credit losses was $698 million, $108 million, and $95 million for the years ending December 31, 2021, 2020, and 2019, respectively. As a result of Winter Storm Uri, the Company incurred additional credit losses from Business customers primarily due to a segment of customers whose contracts included a pass through of wholesale power prices which were significantly escalated during the storm and from customers who failed to meet their obligations in ERCOT load curtailment programs.

Note 6 — Accounting for Derivative Instruments and Hedging Activities
ASC 815 requires the Company to recognize all derivative instruments on the balance sheet as either assets or liabilities and to measure them at fair value each reporting period unless they qualify for a NPNS exception. The Company may elect to designate certain derivatives as cash flow hedges, if certain conditions are met, and defer the change in fair value of the derivatives to accumulated OCI, until the hedged transactions occur and are recognized in earnings.
For derivatives that are not designated as cash flow hedges or do not qualify for hedge accounting treatment, the changes in the fair value will be immediately recognized in earnings. Certain derivative instruments may qualify for the NPNS exception and are therefore exempt from fair value accounting treatment. ASC 815 applies to NRG's energy related commodity contracts, foreign exchange contracts, and interest rate swaps.
As the Company engages principally in the trading and marketing of its generation assets and retail operations, some of NRG's commercial activities qualify for NPNS accounting. Most of the retail load contracts either qualify for the NPNS exception or fail to meet the criteria for a derivative and the majority of the retail supply and fuels supply contracts are recorded under mark-to-market accounting. All of NRG's hedging and trading activities are subject to limits within the Company's Risk Management Policy.
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Energy-Related Commodities
To manage the commodity price risk associated with the Company's competitive supply activities and the price risk associated with wholesale power sales from the Company's electric generation facilities and retail power and gas sales from NRG's retail operations, NRG enters into a variety of derivative and non-derivative hedging instruments, utilizing the following:
Forward contracts, which commit NRG to purchase or sell energy commodities or fuels in the future;
Futures contracts, which are exchange-traded standardized commitments to purchase or sell a commodity or financial instrument;
Swap agreements, which require payments to or from counterparties based upon the differential between two prices for a predetermined contractual, or notional, quantity;
Option contracts, which convey to the option holder the right but not the obligation to purchase or sell a commodity;
Extendable swaps, which include a combination of swaps and options executed simultaneously for different periods. This combination of instruments allows NRG to sell out-year volatility through call options in exchange for natural gas swaps with fixed prices in excess of the market price for natural gas at that time. The above-market swap combined with its later-year call option are priced in aggregate at market at the trade's inception; and
Weather derivative products used to mitigate a portion of lost revenue due to weather.
The objectives for entering into derivative contracts designated as hedges include:
Fixing the price of a portion of anticipated power and gas purchases for the Company's retail sales;
Fixing the price for a portion of anticipated future electricity sales that provides an acceptable return on the Company's electric generation operations; and
Fixing the price of a portion of anticipated fuel purchases for the operation of the Company's power plants.
These contracts are recognized on the balance sheet at fair value and changes in the fair value of these derivative financial instruments are recognized in earnings.
As of December 31, 2021, NRG's derivative assets and liabilities consisted primarily of the following:
Forward and financial contracts for the purchase/sale of electricity and related products economically hedging NRG's generation assets' forecasted output or NRG's retail load obligations through 2036;
Forward and financial contracts for the purchase of fuel commodities relating to the forecasted usage of NRG's generation assets through 2024;
Other energy derivatives instruments extending through 2029.
Also, as    of December 31, 2021, NRG had other energy-related contracts that did not meet the definition of a derivative instrument or qualified for the NPNS exception and were therefore exempt from fair value accounting treatment as follows:
Load-following forward electric sale contracts extending through 2036;
Load-following forward natural gas sale contracts extending through 2032;
Power tolling contracts through 2038;
Coal purchase contracts through 2023;
Power transmission contracts through 2025;
Natural gas transportation contracts through 2034;
Natural gas storage agreements through 2025; and
Coal transportation contracts through 2029.
Interest Rate Swaps
During the fourth quarter of 2020, NRG entered into $1.6 billion of interest rate hedges associated with anticipated certain financing needs. As of December 31, 2020, the interest rate hedges were settled in connection with the issuance of fixed rate debt, resulting in a gain of $11 million that was recorded as a reduction to interest expense.
Foreign Exchange Contracts
In order to mitigate foreign exchange risk primarily associated with the purchase of USD denominated natural gas for the Company's Canadian business, NRG enters into foreign exchange contract agreements through 2025.
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Volumetric Underlying Derivative Transactions
The following table summarizes the net notional volume buy/(sell) of NRG's open derivative transactions broken out by commodity, excluding those derivatives that qualified for the NPNS exception as of December 31, 2021 and 2020. Option contracts are reflected using delta volume. Delta volume equals the notional volume of an option adjusted for the probability that the option will be in-the-money at its expiration date.
(In millions) Total Volume
CommodityUnitsDecember 31, 2021December 31, 2020
EmissionsShort Ton
Renewables Energy CertificatesCertificates13 
CoalShort Ton19 
Natural GasMMBtu813 (286)
OilBarrels— 
PowerMWh185 57 
CapacityMW/Day— (1)
Foreign ExchangeDollars279 — 
The increase in positions is primarily the result of Direct Energy acquisition.
Fair Value of Derivative Instruments
The following table summarizes the fair value within the derivative instrument valuation on the balance sheet:
 Fair Value
 Derivative AssetsDerivative Liabilities
(In millions)December 31, 2021December 31, 2020December 31, 2021December 31, 2020
Derivatives Not Designated as Cash Flow or Fair Value Hedges:
    
Foreign exchange contracts - current$— $— $$— 
Foreign exchange contracts - long-term— — — 
Commodity contracts- current4,613 560 3,386 499 
Commodity contracts- long-term2,526 261 1,412 385 
Total Derivatives Not Designated as Cash Flow or Fair Value Hedges$7,140 $821 $4,799 $884 
The Company has elected to present derivative assets and liabilities on the balance sheet on a trade-by-trade basis and does not offset amounts at the counterparty master agreement level. In addition, collateral received or paid on the Company's derivative assets or liabilities are recorded on a separate line item on the balance sheet. The following table summarizes the offsetting derivatives by counterparty master agreement level and collateral received or paid:
Gross Amounts Not Offset in the Statement of Financial Position
(In millions)Gross Amounts of Recognized Assets/LiabilitiesDerivative InstrumentsCash Collateral (Held)/PostedNet Amount
As of December 31, 2021
Foreign exchange contracts:
Derivative assets$$(1)$— $— 
Derivative liabilities(1)— — 
Total foreign exchange contracts$— $— $— $— 
Commodity contracts:
Derivative assets$7,139 $(4,440)$(831)$1,868 
Derivative liabilities(4,798)4,440 17 (341)
Total commodity contracts$2,341 $— $(814)$1,527 
Total derivative instruments$2,341 $— $(814)$1,527 
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Gross Amounts Not Offset in the Statement of Financial Position
(In millions)Gross Amounts of Recognized Assets/LiabilitiesDerivative InstrumentsCash Collateral (Held)/PostedNet Amount
As of December 31, 2020
Commodity contracts:
Derivative assets$821 $(658)$(5)$158 
Derivative liabilities(884)658 — (226)
Total commodity contracts$(63)$— $(5)$(68)

Impact of Derivative Instruments on the Statement of Operations
Unrealized gains and losses associated with changes in the fair value of derivative instruments not accounted for as cash flow hedges are reflected in current period results of operations.
The following table summarizes the pre-tax effects of economic hedges that have not been designated as cash flow hedges or fair value hedges and trading activity on the Company's statement of operations. The effect of foreign exchange and commodity hedges is included within operating revenues and cost of operations and the effect of interest rate hedges is included in interest expense.
 Year Ended December 31,
(In millions)202120202019
Unrealized mark-to-market results  
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges$(41)$(55)$(68)
Reversal of acquired loss positions related to economic hedges256 
Net unrealized gains/(losses) on open positions related to economic hedges2,501 (68)42 
Total unrealized mark-to-market gains/(losses) for economic hedging activities2,716 (119)(20)
Reversal of previously recognized unrealized (gains) on settled positions related to trading activity(18)(20)(11)
Reversal of acquired (gain) positions related to trading activity(1)— — 
Net unrealized (losses)/gains on open positions related to trading activity(13)15 31 
Total unrealized mark-to-market (losses)/gains for trading activity(32)(5)20 
Total unrealized gains/(losses)$2,684 $(124)$— 
 Year Ended December 31,
(In millions)202120202019
Unrealized (losses)/gains included in operating - commodities$(196)$90 $53 
Unrealized gains/(losses) included in cost of operations- commodities2,880 (214)(53)
Total impact to statement of operations- commodities$2,684 $(124)$— 
Total impact to statement of operations — interest rate contracts$— $— $(38)
The reversals of acquired loss/(gain) positions were valued based upon the forward prices on the acquisition date. The roll-off amounts were offset by realized gains or losses at the settled prices and are reflected in revenue or cost of operations during the same period.
The gain from open economic hedge positions of $2.5 billion for the year ended December 31, 2021 was primarily the result of an increase in value of forward positions as a result of increases in natural gas and power prices.
The loss from open economic hedge positions of $68 million for the year ended December 31, 2020 was primarily the result of a decrease in the value of forward positions as a result of decreases in ERCOT power prices and heat rate contraction, partially offset by an increase in value of forward positions as a result of decreases in New York capacity prices.
The gain from open economic hedge positions of $42 million for the year ended December 31, 2019 was primarily the result of an increase in the value of forward purchases of ERCOT heat rate contracts due to ERCOT heat rate expansion.
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Credit Risk Related Contingent Features
Certain of the Company's hedging and trading agreements contain provisions that entitle the counterparty to demand that the Company post additional collateral if the counterparty determines that there has been deterioration in the Company's credit quality, generally termed “adequate assurance” under the agreements, or require the Company to post additional collateral if there were a downgrade in the Company's credit rating. In addition, as a result of the acquisition of Direct Energy from Centrica, certain of the Company’s agreements as of December 31, 2021, were still supported by credit support posted by Centrica, and as a result could require the Company to post collateral upon a deterioration or downgrade of Centrica. The collateral potentially required for contracts with adequate assurance clauses that are in net liability positions as of December 31, 2021 was $1.0 billion. The Company is also a party to certain marginable agreements under which it has a net liability position, but the counterparty has not called for the collateral due, which was approximately $70 million as of December 31, 2021. In the event of a downgrade in the Company's credit rating and if called for by the counterparty, $1 million of additional collateral would be required for all contracts with credit rating contingent features as of December 31, 2021.
See Note 5, Fair Value of Financial Instruments, for discussion regarding concentration of credit risk.



Note 67 — Nuclear Decommissioning Trust Fund
NRG's Nuclear Decommissioning Trust Fund assets, which are for the decommissioning of STP, are comprised of securities classified as available-for-sale and recorded at fair value based on actively quoted market prices. Although NRG is responsible for managing the decommissioning of its 44% interest in STP, the predecessor utilities that owned STP are authorized by the PUCT to collect decommissioning funds from their ratepayers to cover decommissioning costs on behalf of NRG. NRC requirements determine the decommissioning cost estimate which is the minimum required level of funding. In the event that funds from the ratepayers that accumulate in the nuclear decommissioning trust are ultimately determined to be inadequate to decommission the STP facilities, the utilities will be required to collect through rates charged to rate payers all additional amounts, with no obligation from NRG, provided that NRG has complied with PUCT rules and regulations regarding decommissioning trusts. Following completion of the decommissioning, if surplus funds remain in the decommissioning trusts, any excess will be refunded to the respective ratepayers of the utilities.
NRG accounts for the Nuclear Decommissioning Trust Fund in accordance with ASC 980, Regulated Operations, or ASC 980, because the Company's nuclear decommissioning activities are subject to approval by the PUCT, with regulated rates that are designed to recover all decommissioning costs and that can be charged to and collected from the ratepayers per PUCT mandate. Since the Company is in compliance with PUCT rules and regulations regarding decommissioning trusts and the cost of decommissioning is the responsibility of the Texas ratepayers, not NRG, all realized and unrealized gains or losses (including other-than-temporary impairments) related to the Nuclear Decommissioning Trust Fund are recorded to the Nuclear Decommissioning Trust liability and are not included in net income or accumulated other comprehensive income, consistent with regulatory treatment.
The following table summarizes the aggregate fair values and unrealized gains and losses for the securities held in the trust funds, as well as information about the contractual maturities of those securities.
 As of December 31, 2021As of December 31, 2020
(In millions, except otherwise noted)
Fair
Value
Unrealized
Gains
Unrealized
Losses
Weighted-
average
maturities
(in years)
Fair
Value
Unrealized
Gains
Unrealized
Losses
Weighted-
average
maturities
(in years)
Cash and cash equivalents$33 $— $— — $23 $— $— — 
U.S. government and federal agency obligations112 1070 — 10
Federal agency mortgage-backed securities100 — 2589 — 24
Commercial mortgage-backed securities44 — 2736 — 27
Corporate debt securities122 14144 13 — 12
Equity securities593 456 — — 521 372 — — 
Foreign government fixed income securities— — 13— 10
Total$1,008 $471 $ $890 $398 $—  

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 As of December 31, 2018 As of December 31, 2017
(In millions, except otherwise noted)
Fair
Value
 
Unrealized
Gains
 
Unrealized
Losses
 
Weighted-
average
maturities
(in years)
 
Fair
Value
 
Unrealized
Gains
 
Unrealized
Losses
 
Weighted-
average
maturities
(in years)
Cash and cash equivalents$19
 $
 $
 
 $47
 $
 $
 
U.S. government and federal agency obligations46
 1
 
 12
 43
 1
 
 11
Federal agency mortgage-backed securities100
 1
 2
 23
 82
 1
��1
 23
Commercial mortgage-backed securities22
 
 1
 22
 14
 
 
 20
Corporate debt securities96
 1
 2
 11
 99
 2
 1
 11
Equity securities376
 231
 1
 
 402
 272
 
 
Foreign government fixed income securities4
 
 
 9
 5
 
 
 9
Total$663
 $234
 $6
  
 $692
 $276
 $2
  



The following table summarizes proceeds from sales of available-for-sale securities and the related realized gains and losses from these sales. The cost of securities sold is determined using the specific identification method.
 Year Ended December 31,
(In millions)202120202019
Realized gains$47 $34 $18 
Realized (losses)(9)(13)(9)
Proceeds from sale of securities710 439 381 

 Year Ended December 31,
 2018 2017 2016
 (In millions)
Realized gains$17
 $22
 $26
Realized (losses)(13) (8) (11)
Proceeds from sale of securities513
 501
 510


Note 78 — Inventory
Inventory consisted of:
As of December 31,
As of December 31,
2018 2017
(In millions)
(In millions)(In millions)20212020
Fuel oil$74
 $86
Fuel oil$$37 
Coal97
 110
Coal83 73 
Natural gas28
 24
Natural gas206 22 
Spare parts213
 233
Spare parts and finished goodsSpare parts and finished goods201 195 
Total Inventory$412

$453
Total Inventory$498 $327 
The Company recorded a $29 million lower of weighted average cost or market adjustment related to fuel oil forduring the yearsyear ended December 21, 2018 and 2017 of $3 million and $33 million respectively.31, 2020.


Note 89 — Property, Plant and Equipment
The Company's major classes of property, plant, and equipment were as follows:
 As of December 31,Depreciable
(In millions)20212020Lives
Facilities and equipment$1,742 $3,365 1-40 years
Land and improvements271 329 
Nuclear fuel222 239 5 years
Hardware and office equipment and furnishings637 453 2-10 years
Construction in progress124 97  
Total property, plant, and equipment2,996 4,483  
Accumulated depreciation(1,308)(1,936) 
Net property, plant, and equipment$1,688 $2,547  
 As of December 31, Depreciable
 2018 2017 Lives
 (In millions)  
Facilities and equipment$3,763
 $6,904
 1-40 Years
Land and improvements347
 468
  
Nuclear fuel212
 235
 5 Years
Office furnishings and equipment431
 421
 2-10 Years
Construction in progress106
 201
  
Total property, plant, and equipment4,859
 8,229
  
Accumulated depreciation(1,811) (2,255)  
Net property, plant, and equipment$3,048
 $5,974
  
The Company recorded long-lived asset impairments during the years ended December 31, 20182021 and 2017,2020, as further described in Note 9, 11, Asset Impairments.Depreciation expense of property, plant and equipment recorded during the years ended December 31, 2021, 2020 and 2019 was $384 million, $295 million and $271 million, respectively.



Note 9 10Leases
The Company leases generating facilities, land, office and equipment, railcars, fleet vehicles and storefront space at retail stores. Operating leases with an initial term greater than twelve months are recognized as right-of-use assets and lease liabilities in the consolidated balance sheets. The Company made an accounting policy election, as permitted by ASC 842, for all asset classes not to recognize right-of-use assets and lease liabilities in the consolidated balance sheets for its short-term leases, which are leases that have a lease term of twelve months or less. For the initial measurement of lease liabilities, the discount rate that the Company uses is either the rate implicit in the lease, if known, or its incremental borrowing rate, which is the rate of interest that the Company would have to pay to borrow, on a collateralized basis, over a similar term an amount equal to the payments for the lease. The Company recognizes lease expense for all operating leases on a straight-line basis over the lease term. In the future, should another systematic basis become more representative of the pattern in which the lessee expects to consume the remaining economic benefit of the right-of-use asset, the Company will use that basis for lease expense.
The Company considers a contract to be or to contain a lease when both of the following conditions apply: 1) an asset is either explicitly or implicitly identified in the contract and 2) the contract conveys to the Company the right to control the use of the identified asset for a period of time. The Company has the right to control the use of the identified asset when the Company
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has both the right to obtain substantially all the economic benefits from the use of the identified asset and the right to direct how and for what purpose the identified asset is used throughout the period of use.
Lease payments are typically fixed and payable on a monthly, quarterly, semi-annual or annual basis. Lease payments under certain agreements may escalate over the lease term either by a fixed percentage or a fixed dollar amount. Certain leases may provide for variable lease payments in the form of payments based on usage, a percentage of sales from the location under lease, or index-based (e.g., the U.S. Consumer Price Index) adjustments to lease payments. The Company has no leases which contain residual value guarantees provided by the Company as a lessee.
As described in Note 4, Acquisitions, Discontinued Operations and Dispositions, upon the close of the South Central Portfolio sale in 2019, the Company entered into an agreement to leaseback the Cottonwood facility through May 2025. The lease was accounted for in accordance with ASC 842-40, Sale and Leaseback Transactions, as an operating lease and accordingly, a right-of-use asset and lease liability were established on the lease commencement date and will be amortized through the end of the lease.
Lease Cost:
For the Year Ended December 31,
(In millions)202120202019
Finance lease cost$$$— 
Operating lease cost91 100 109 
Short-term lease cost
Variable lease cost
Sublease income(2)(17)(17)
Total lease cost$105 $95 $101 

Other information:
For the Year Ended December 31,
(In millions)202120202019
Cash paid for amounts included in the measurement of lease liabilities:
   Operating cash flows from operating leases$102 $101 $104 
      Financing cash flows from finance leases— 
Right-of-use assets obtained in exchange for new finance lease liabilities16 — 
Right-of-use assets obtained in exchange for new operating lease liabilities47 215 

Lease Term and Discount Rate for leases:
December 31, 2021December 31, 2020
Finance leases:
Weighted average remaining lease term (in years)3.61.1
Weighted average discount rate2.46 %4.79 %
Operating leases:
Weighted average remaining lease term (in years)4.75.3
Weighted average discount rate5.44 %5.63 %

122


As of December 31, 2021, annual payments based on the maturities of NRG's operating leases are expected to be as follows:
In millions
2022$96 
202389 
202476 
202552 
202611 
Thereafter48 
Total undiscounted lease payments$372 
Less: present value adjustment(55)
Total discounted lease payments$317 

Note 11 — Asset Impairments
20182021 Impairment Losses

GuamDuring the fourth quarter of 2018,2021, the Company completed its annual budget and analyzed the corresponding impact on estimated cash flows associated with its long-lived assets. The fair value of the assets was determined using an income approach by applying a discounted cash flow methodology to the long-term budget for the facility. The income approach utilized estimates of after-tax cash flows, which were Level 3 fair value measurements, and included key inputs such as forecasted power prices, fuel costs, operating and maintenance costs, plant investment capital expenditures and discount rates.
Joliet —The Company recognized an impairment loss of $213 million in the East segment as a result of changes in the long-term outlook of the Joliet facility prompted by market conditions and an assessment of various alternatives for the long-term operational landscape of the facility including the impact of the CEJA in Illinois, which concluded with the annual budget process.
Other Impairments — The Company additionally recorded impairment losses of $16 million and $9 million related to various power plants in the East and West/Service/Other segments, respectively.
The Company also recorded the following impairment in 2021 based on a specific triggering event that occurred using the same methodology previously discussed:
PJM Asset Impairments — During the second quarter of 2021, the results of the PJM Base Residual Auction for the 2022/2023 delivery year were released leading the Company to announce the near-term retirement of a significant portion of its PJM coal generating assets in June 2022. The Company considered the decline in PJM capacity prices and the near-term retirement dates of certain assets to be a trigger for impairment and performed impairment tests on the PJM generating assets and the goodwill associated with Midwest Generation. Impairment losses of $271 million and $35 million were recorded in the East segment on the PJM generating assets and Midwest Generation goodwill, respectively.
2020 Impairment Losses
During the fourth quarter of 2020, the Company completed its annual budget and revised its view of long-term power and fuel prices and the corresponding impact on estimated cash flows associated with its long-lives assets. The Cottonwood facility had estimated cash flows that were lower than its carrying amount and the assets were considered impaired. The fair value of the assets was determined using an income approach by applying a discounted cash flow methodology to the long-term budget for the facility. The income approach utilized estimates of after-tax cash flows, which were Level 3 fair value measurements, and included key inputs such as forecasted power prices, fuel costs, operating and maintenance costs, plant investment capital expenditures and discount rates.
The Cottonwood facility is being leased through 2025 and the Company recognized an impairment loss of $32 million in 2020 in the West/Services/Other segment associated with the Company's long-term services agreement and related lease payments, as the carrying amounts of the assets from the contract were higher than the estimated operating cash flow though the remaining lease period.
The Company also recorded the following impairments in 2020 based on specific triggering events that occurred:
Home Solar — In the third quarter of 2020, the Company concluded its wholly-owned subsidiary, NRGHome Solar Guam, LLC,business was held for sale after board approval and advanced negotiations to sell the business. Accordingly, the Company recorded the assets and liabilities at fair market value as of December 31, 2018 based on the contractual sale price, which resulted in an impairment loss of $12 million. On February 20, 2019, the Company completed the sale of Guam for cash consideration of approximately $8 million.
Keystone and Conemaugh — On September 5, 2018, the Company sold its approximately 3.7% interests$29 million in the Keystone and Conemaugh generating stations. NRG recorded impairment losses of $14 million for Keystone and $14 million for ConemaughWest/Services/Other segment to adjust the carrying amount of the assets and liabilities to fair market value based on the contractualindicative sale price.prices.
Dunkirk
123


Petra Nova Parish HoldingsDuring the secondfirst quarter of 2018,2020, due to the decline in oil prices, NRG ceased its development of the project to add gas capability at the Dunkirk generating station. The project was put on hold in 2015 pending the resolution of a lawsuit filed by Entergy Corporation against the NYPSC, which challenged the legality of its contract with Dunkirk. The lawsuit was later dropped and development continued, but the delay imposed a new requirement on Dunkirk to enter into the NYISO interconnection study process. The NYISO studies have concludeddetermined that extensive electric system upgrades would be necessary for the station to return to service. This would cause the Company to incur a material increase in cost and delay the project schedule that would render the project impractical. Consequently, the Company has recorded an impairment loss of $46 million, reducing the carrying amount of the related assetsCompany’s equity method investment exceeded the fair value of the investment and that the decline is considered to $0.
Other Impairments — As of December 31, 2018,be other-than-temporary. In determining the fair value, the Company recorded additional asset impairment losses of approximately $13 million and impairment losses on equity method investments of $15 million.

2017 Impairment Losses

South Texas Project —utilized an income approach to estimate future project cash flows. The Company recognized an impairment loss of $1,248 million related to its interest in STP as a result of the decrease in the Company's view of long-term power prices in ERCOT.

Indian River — The Company recognized an impairment loss of $36 million for Indian River as a result of the decrease in the Company's view of long-term power prices in PJM.

Keystone and Conemaugh — The Company recognized impairment losses of $35 million for Keystone and $35 million for Conemaugh as a result of the decrease in the Company's view of long-term power prices in PJM.
Bacliff Project — On June 16, 2017, NRG Texas Power LLC provided notice to BTEC New Albany, LLC that it was exercising its right to terminate the Amended and Restated Membership Interest Purchase Agreement, or MIPA, due to the Bacliff Project, a new peaking facility at the former P.H. Robinson Electric Generating Station, not achieving commercial completion by the contractual expiration date of May 31, 2017. As a result of the MIPA termination, the Company recorded an impairment loss of $41$18 million in the Texas segment, which included the anticipated drawdown of the $12 million letter of credit posted in September 2019 to reducecover certain project debt reserve requirements.
Other Impairments — For the year ended December 31, 2020, the Company recorded $14 million of impairment losses related to intangible assets in the Texas segment.
2019 Impairment Losses
Petra Nova Parish Holdings — During the third quarter of 2019, NRG contributed $95 million in cash to Petra Nova and posted a $12 million letter of credit to cover certain project debt reserve requirements. The cash portion of the contribution was used by Petra Nova to prepay a significant portion of the project debt. As a result, the previously disclosed guarantee of up to $124 million related to the project level debt provided by NRG was canceled and the remaining project debt became non-recourse to NRG. In relation to this contribution, the Company evaluated the project for impairment and determined that the carrying amount of the related construction in progress to $0 duringCompany’s equity method investment exceeded the second quarter of 2017. Subsequent to the MIPA termination, BTEC filed claims against NRG Texas Power LLC with respect to the terminationfair value of the MIPAinvestment and NRG filed counterclaims against BTEC as further described in Note 21, Commitments and Contingencies. On June 7, 2018,that the parties resolved all claims and counterclaims in the lawsuit.

Petra Nova Parish Holdings — In connection with the preparation of the annual budget during the fourth quarter, management revised its view of oil production expectations with respectdecline is considered to Petra Nova Parish Holdings. As a result, the Company reviewed its 50% interest in Petra Nova Parish Holdings for impairment utilizing the other-than-temporary impairment model.be other-than-temporary. In determining the fair value, the Company utilized an income approach and considered project specific assumptions for the estimated future project cash flows. The carrying amount of the Company's equity method investment exceeded the fair value of the investment and the Company concluded that the decline is considered to be other-than-temporary. As a result, the Company measured the impairment loss as the difference between the carrying amount and the fair value of the investment and recorded an impairment loss of $69$101 million.

Other ImpairmentsDuringFor the year ended 2017,December 31, 2019, the Company recorded $12 million of impairment losses of $29 million in connection with renewable assets that were not divested as part of the sale of NRG Yield and the Renewables Platform. In addition, the Company recorded an impairment loss of $20 millionprimarily related to excess SO2 allowancesinvestments and $10 million in impairment lossesintangibles.

Note 12 — Goodwill and Other Intangibles
Goodwill
The table below presents the changes of goodwill for other investments.


2016 Impairment Losses

Rockford As described in Note 3, Acquisitions, Discontinued Operations and Dispositions,the year ended December 31, 2021 based on May 12, 2016, the Company entered into an agreement with RA Generation, LLC to sell 100% of its interests in the Rockford generating stations for cash consideration of $55 million. The transaction triggered an indicator of impairment as the sale price was less than the carrying amount of the assets, and, as a result, the assets were considered to be impaired. The Company measured the impairment loss as the difference between the carrying amount of the assets and the agreed-upon sale price. The Company recorded an impairment loss of $17 millionCompany's reportable segments. Goodwill did not change during the year ended December 31, 2016, to reduce the carrying amount of the assets held for sale to their fair market value.2020.
Long Beach During the fourth quarter of 2016, the Company determined that by the end of 2017 it would retire its Long Beach generation station located in Long Beach, California. The generating station was not awarded a PPA extension in SCE's capacity auction during the fourth quarter of 2016 for the PPA set to expire on July 31, 2017. The Company considered this to be an indicator of impairment and performed an impairment test. The Company measured the impairment loss as the difference between the carrying amount and the fair value of the assets and recorded an impairment loss of $36 million. Subsequently, management decided to continue to operate in 2018, which did not significantly impact fair value.
(in millions)TexasEastWest/Services/OtherTotal
 Balance as of January 1, 2021$324 $240 $15 $579 
Goodwill resulted from the acquisition of Direct Energy427 648 175 1,250 
Impairment losses— (35)— (35)
Foreign currency translation— — 
Balance as of December 31, 2021$751 $853 $191 $1,795 
Petra Nova Parish Holdings During the first quarter of 2016, management changed its plans with respect to its future capital commitments driven in part by the continued decline in oil prices. As a result, the Company reviewed its 50% interest in Petra Nova Parish Holdings for impairment utilizing the other-than-temporary impairment model. In determining fair value, the Company utilized an income approach and considered project specific assumptions for the future project cash flows. The carrying amount of the Company's equity method investment exceeded the fair value of the investment and the Company concluded that the decline is considered to be other-than-temporary.. As a result, the Company measured the impairment loss as the difference between the carrying amount and the fair value of the investment and recorded an impairment loss of $140 million.
Community Wind North and Sherbino — During the fourth quarter of 2016, the Company offered several projects to NRG Yield including its interest in Community Wind North. The offer price was below its carrying amount and this decline in fair value was determined to be other-than-temporary. Accordingly, the Company recorded an impairment loss of $36 million to reduce its carrying amount to fair value. In connection with the preparation of the annual budget, the Company noted that due to the anticipated difficulty in refinancing Sherbino's debt, the project's fair value had decreased significantly below its carrying amount and determined the impairment to be other-than-temporary. Accordingly, the Company determined that an impairment existed and recorded an impairment loss on its investment in Sherbino of $70 million.

Other Impairments — During 2016, the Company recorded other impairment losses of $29 million in connection with renewable assets that were not divested as part of the sale of NRG Yield and the Renewables Platform. In addition, the Company also recorded impairment losses of $23 million in excess SO2 allowances, $19 million for other intangible assets, $19 million in previously purchased solar panels and $22 million in other investments.


Note 10 — Goodwill and Other Intangibles
Goodwill
NRG's goodwill balance was $573 million and $539 million as of December 31, 2018 and 2017, respectively. The increase in goodwill is due to the acquisition of XOOM. As of December 31, 2018 and 2017, NRG had approximately $366 million and $460 million, respectively, of goodwill that is deductible for U.S. income tax purposes in future periods. As of December 31, 2018, goodwill consisted of $165 million associated with the acquisition of Midwest Generation and $408 million for Retail business acquisitions, including Texas non-commodity and XOOM.
2017Impairments of Goodwill
BETM — During the fourth quarter of 2017, the Company concluded that BETM was held for sale following board approval and advanced negotiations to sell the business. Accordingly, the Company recorded the assets and liabilities at fair market value as of December 31, 2017, which resulted in an impairment loss of $90 million to record BETM's goodwill at fair market value. The remaining goodwill balance for BETM of $21 million was included within non-current assets held-for-sale as of December 31, 2017.
2016Impairments of Goodwill
During the year ended December 31, 2016, the Company recorded a goodwill impairment charge of $337 million related to its Texas Generation reporting unit, reducing the goodwill balance for Texas Generation to zero.

In connection with the annual impairment assessment, the Company performed step one of the two-step impairment test for the Texas Generation reporting unit, for which $1.7 billion of goodwill was recognized as part of the Texas Genco acquisition in 2006 and $1.4 billion was written off in 2015. The Company determined the fair value of the Texas Generation reporting unit primarily using an income approach through which the Company applied a discounted cash flow methodology to the long-term budgets for all plants in the regions. Significant inputs impacting the income approach include the Company's views of power and fuel prices for the first five-year period and the Company's view for the longer term, which were finalized in connection with the preparation of the annual budget, projected generation based on an hourly dispatch meant to simulate the dispatch of each unit into the power market which is impacted by power prices, fuel prices, and the physical and economic characteristics of each plant, intangible value to Texas Generation for synergies it provides to NRG's retail businesses, and the discount rate applied to cash flow projections. Under step one, the estimated fair value of the Texas Generation invested capital was 43% below its carrying value as of December 31, 2016, and the Company concluded step two was required. Based on the results of step two of the impairment test, the Company determined the carrying amount of the reporting unit was higher than the fair value, and accordingly, the Company recognized an impairment loss of $337 million as of December 31, 2016.
Intangible Assets
The Company's intangible assets as of December 31, 2018,2021, primarily reflect intangible assets established with the acquisitions of various companies, including Direct Energy, Stream Energy, other retail acquisitions, and Texas Genco, Reliant Energy, Green Mountain Energy, Dominion, XOOM, Discount Power, Energy Alternatives, Energy Plus, Energy Systems, Energy Curtailment Specialists, Pioneer Energy, Stat Energy and Source Power & Gas.Genco. Intangible assets are comprised of the following:
Emission Allowances — These intangibles primarily consist of SO2 emission allowances, including those established with the 2006 acquisition of Texas Genco, RGGI emission credits and California carbon allowances. These emission allowances are held-for-use and are amortized to cost of operations based on units of production.
EnergyCustomer and supply contracts— These intangibles include the fair value at the acquisition date of in-market and out-of-market customer and supply contracts from the acquisition of Direct Energy and are amortized to revenue and cost of operations, respectively, based upon the fair market value, as of the acquisition date, for each delivery month. It also included energy supply contracts acquired with Stream Energy that represent the fair value at the acquisition date of in-market contracts for the purchase of energy to serve retail electric customers. The contractscustomers and are amortized to cost of operations based on the expected delivery under the respective contracts.
Customer contracts — These intangibles represent the fair value at the acquisition date of contracts that primarily provide electricity to Reliant Energy's and Green Mountain Energy's C&I customers. These contracts are amortized to revenues based on expected volumes to be delivered for the portfolio.
Customer relationships — These intangibles represent the fair value at the acquisition date of acquired businesses' customer base.base from the acquisition of Direct Energy and other acquisitions. The customer relationships are amortized to depreciation and amortization expense based on the expected discounted future net cash flows by year.
Marketing partnerships — These intangibles represent the fair value at the acquisition date of existing agreements with marketing vendors and loyalty and affinity partners.partners for customer acquisition. The marketing partnerships are amortized to depreciation and amortization expense based on the expected discounted future net cash flows by year.
Trade names — These intangibles are amortized to depreciation and amortization expense on a straight-line basis.
124
Emission Allowances — These intangibles primarily consist of SO2 and NOx emission allowances established with the 2006 Texas Genco acquisition and also include RGGI emission credits which NRG began purchasing in 2009. These emission allowances are held-for-use and are amortized to cost of operations, with NOx allowances amortized on a straight-line basis and SO2 allowances and RGGI credits amortized based on units of production. During the year ended December 31, 2018, the Company recorded an impairment loss of $5 million to reduce the value of excess SO2 allowances to zero.

In-market fuel (gas and nuclear) contracts
Other — These intangibles wereprimarily include renewable energy credits. Renewable energy credits are retired, as required, for the applicable compliance period. They are expensed to cost of operations based on NRG’s customer usage. It also includes in-market nuclear fuel contracts established withfrom the Texas Genco acquisition in 2006 andwhich are amortized to cost of operations over expected volumes over the life of each contract.
Other — Consists of renewable energy credits andcontract, costs to extend the operating license for STP Units 1 and 2.

2 and intellectual property related to Goal Zero which are amortized to depreciation and amortization expense.
The following tables summarize the components of NRG's intangible assetsassets:
(In millions)     
Year Ended December 31, 2021
Emission
Allowances
Customer and Supply Contracts
Customer
Relationships
Marketing Partnerships
Trade
Names
Other(b)
Total
January 1, 2021$672 $28 $527 $285 $373 $140 $2,025 
Purchases10 — — — — 338 348 
Acquisition of businesses (a)
— 610 1,308 — 310 124 2,352 
Usage/Sales/Retirements(1)— — — — (364)(365)
Write-off of fully amortized balances(51)— (158)— — (7)(216)
Other— (1)— (2)
December 31, 2021634 638 1,679 284 683 229 4,147 
Less accumulated amortization(536)(94)(518)(123)(294)(71)(1,636)
Net carrying amount$98 $544 $1,161 $161 $389 $158 $2,511 
(a)The weighted average life of total acquired amortizable intangibles from the Direct Energy acquisition was 12 years, see Note 4 — Acquisitions, Discontinued Operations and Dispositions for weighted average life of acquired amortizable intangibles for each intangible asset type
(b)RECs are not subject to amortization:amortization and had a carrying value of $123 million

  Contracts          
Year Ended December 31, 2018
Emission
Allowances
 Fuel Customer Contracts 
Customer
Relationships
 Marketing Partnerships 
Trade
Names
 Other Total
 
January 1, 2018$755
 $49
 $1
 $768
 $88
 $342
 $77
 $2,080
(In millions)(In millions)     
Year Ended December 31, 2020Year Ended December 31, 2020
Emission
Allowances
Customer and Supply Contracts
Customer
Relationships
Marketing Partnerships
Trade
Names
Other(b)
Total
January 1, 2020January 1, 2020$662 $28 $573 $285 $373 $130 $2,051 
Purchases33
 
 
 
 
 
 28
 61
Purchases25 — — — — 45 70 
Acquisition of businesses(a)

 
 
 122
 43
 13
 
 178
Acquisition of businesses (a)
— — 22 — — — 22 
Usage(1) 
 
 
 
 
 (26) (27)
Usage/RetirementsUsage/Retirements— — — — — (35)(35)
Write-off of fully amortized balances(107) 
 
 (411) 
 (10) 
 (528)Write-off of fully amortized balances(4)— (70)— — — (74)
Impairment(5) 
 
 (1) 
 
 
 (6)Impairment(14)— — — — — (14)
Other(16) 
 
 
 
 
 
 (16)Other— — — — 
December 31, 2018659
 49
 1
 478
 131
 345
 79
 1,742
December 31, 2020December 31, 2020672 28 527 285 373 140 2,025 
Less accumulated amortization(515) (45) (1) (314) (61) (195) (20) (1,151)Less accumulated amortization(563)(28)(349)(99)(247)(71)(1,357)
Net carrying amount$144
 $4
 $
 $164
 $70
 $150
 $59
 $591
Net carrying amount$109 $— $178 $186 $126 $69 $668 
(a)The weighted average life of acquired intangibles is:was 5 years for customer relationships 6 years, trade names 7 years,
(b)RECs are not subject to amortization and marketing partnerships 14 yearshad a carrying value of $28 million


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   Contracts          
Year Ended December 31, 2017
Emission
Allowances
 
Energy
Supply
 Fuel Customer Contracts 
Customer
Relationships
 Marketing Partnerships 
Trade
Names
 Other Total
 (In millions)
January 1, 2017$780
 $54
 $72
 $1
 $750
 $88
 $342
 $75
 $2,162
Purchases27
 
 
 
 
 
 
 32
 59
Acquisition of businesses
 
 
 
 18
 
 
 
 18
Usage(10) 
 
 
 
 
 
 (28) (38)
Write-off of fully amortized balances
 (54) (23) 
 
 
 
 
 (77)
Impairment(20) 
 
 
 
 
 
 
 (20)
Other(22) 
 
 
 
 
 
 (2) (24)
December 31, 2017755
 
 49
 1
 768
 88
 342
 77
 2,080
Less accumulated amortization(583) 
 (45) (1) (693) (54) (182) (15) (1,573)
Net carrying amount$172
 $
 $4
 $
 $75

$34

$160
 $62

$507


The following table presents NRG's amortization of intangible assets for each of the past three years:
Years Ended December 31,
(In millions)202120202019
Emission allowances$24 $28 $32 
Customer and supply contracts66 12 14 
Customer relationships327 74 44 
Marketing partnerships24 24 15 
Trade names47 27 25 
Other(a)
Total amortization$495 $168 $134 
 Years Ended December 31,
Amortization2018 2017 2016
 (In millions)
Emission allowances$39
 $71
 $62
Energy supply contracts
 1
 6
Fuel contracts
 1
 1
Customer relationships32
 34
 48
Marketing partnerships9
 5
 8
Trade names23
 23
 23
Other4
 3
 9
Total amortization$107
 $138
 $157

(a)For the years ended December 31, 2021, 2020 and 2019, other intangibles were amortized to depreciation and amortization expense for $3 million, $3 million and $4 million, respectively
The following table presents estimated amortization of NRG's intangible assets as of December 31, 2021 for each of the next five years:
(In millions)
Year Ended December 31,
Emission
Allowances
Customer and Supply Contracts
Customer
Relationships
Marketing Partnerships
Trade
Names
OtherTotal
2022$14 $143 $265 $23 $47 $$495 
202312 120 216 23 46 421 
202412 73 148 23 38 297 
202511 50 110 22 32 229 
202652 95 22 24 206 
Year Ended December 31,
Emission
Allowances
 Fuel Contracts 
Customer
Relationships
 Marketing Partnerships 
Trade
Names
 Other Total
 (In millions)
2019$48
 $
 $38
 $11
 $24
 $3
 $124
202037
 1
 39
 11
 25
 3
 116
202143
 
 33
 10
 24
 3
 113
202250
 
 23
 10
 24
 3
 110
202349
 1
 26
 10
 24
 3
 113
Intangible assets held-for-sale — From time to time, management may authorize the transfer from the Company's emission bank of emission allowances held-for-use to intangible assets held-for-sale. Emission allowances held-for-sale are included in other non-current assets on the Company's consolidated balance sheet and are not amortized, but rather expensed as sold. As of December 31, 20182021 and 2017,2020, the value of emission allowances held-for-sale is $12was $15 million and $9$14 million, respectively, and is managed within the Corporate segment. Once transferred to held-for-sale, these emission allowances are prohibited from moving back to held-for-use.
Out-of-market contracts — Due primarily to business acquisitions, NRG acquired certain out-of-market contracts, which are classified as non-current liabilities on NRG's consolidated balance sheet. These include out-of-market lease contracts of $121 million acquired in the acquisition of Midwest Generation. These out-of-market contracts are amortized to cost of operations. As of December 31, 2018 and 2017, the Company had accumulated amortization for out-of-market contracts of $37 million and $29 million, respectively. Upon adoption of ASC 842, Leases, on January 1, 2019, out-of-market lease contracts are included as a component of right-of-use assets.
The following table summarizes the estimated amortization related to NRG's out-of-market contracts:
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Year Ended December 31,Leases
  
2019$8
20208
20218
20228
20238




Note 1113 — Long-term Debt and CapitalFinance Leases
Long-term debt and capitalfinance leases consisted of the following:

(In millions, except rates)December 31, 2021December 31, 2020 Interest rate %
Recourse debt:
Senior Notes, due 2026$— $1,000 7.250
Senior Notes, due 2027375 1,230 6.625
Senior Notes, due 2028821 821 5.750
Senior Notes, due 2029733 733 5.250
Senior Notes, due 2029500 500 3.375
Senior Notes, due 20311,030 1,030 3.625
Senior Notes, due 20321,100 — 3.875
Convertible Senior Notes, due 2048(a)
575 575 2.750
Senior Secured First Lien Notes, due 2024600 600 3.750
Senior Secured First Lien Notes, due 2025500 500 2.000
Senior Secured First Lien Notes, due 2027900 900 2.450
Senior Secured First Lien Notes, due 2029500 500 4.450
Tax-exempt bonds466 466 1.250 - 4.750
Subtotal long-term debt (including current maturities)8,100 8,855 
Finance leases13 4 various
Subtotal long-term debt and finance leases (including current maturities)8,113 8,859 
Less current maturities(4)(1)
Less debt issuance costs(83)(93)
Discounts(60)(74)
Total long-term debt and finance leases$7,966 $8,691 
(In millions, except rates)December 31, 2018 December 31, 2017 
December 31, 2018 interest rate %(a)
   
Recourse debt:     
Senior Notes, due 2022$
 $992
 6.250
Senior Notes, due 2024733
 733
 6.250
Senior Notes, due 20261,000
 1,000
 7.250
Senior Notes, due 20271,230
 1,250
 6.625
Senior Notes, due 2028821
 870
 5.750
Convertible Senior Notes, due 2048575
 
 2.750
Term loan facility, due 20231,698
 1,872
 L+1.75
Tax-exempt bonds466
 465
 4.125 - 6.00
Subtotal recourse debt6,523
 7,182
 
Non-recourse debt:     
Ivanpah, due 2033 and 2038(b)

 1,073
 2.285 - 4.256
Agua Caliente, due 2037(c)

 818
 2.395 - 3.633
Agua Caliente Borrower 1, due 203886
 89
 5.430
Midwest Generation, due 201948
 152
 4.390
Other (d)
34
 180
 various
Subtotal all non-recourse debt168
 2,312
  
Subtotal long-term debt (including current maturities)6,691
 9,494
  
Capital leases1
 5
 various
Subtotal long-term debt and capital leases (including current maturities)6,692
 9,499
  
Less current maturities(72) (204)  
Less debt issuance costs(70) (103)  
Discounts(101) (12)  
Total long-term debt and capital leases$6,449
 $9,180
  
(a)The effective interest rate was 5.34% and 5.19% for the years ended December 31, 2021 and 2020, respectively. As of Decemberthe ex-dividend date of January 31, 2018, L+ equals 1-month LIBOR plus 1.75%2022, the Convertible Senior Notes were convertible at a price of $44.53, which is equivalent to a conversion rate of approximately 22.4563 shares of common stock per $1,000 principal amount. The remaining period over which the discount on the liability component would have been amortized is 3.7 years. However, the adoption of ASU 2020-06 on January 1, 2022 resulted in the elimination of the debt discount.
(b) The Company deconsolidated Ivanpah during the second quarter of 2018
(c) The Company deconsolidated Agua Caliente solar facility during the third quarter of 2018
(d) Guam was reclassified to held for sale during the fourth quarter of 2018

Debt includes the following discounts:
As of December 31,
(In millions)20212020
Senior Secured First Lien Notes, due 2024, 2025, 2027 and 2029$(2)$(2)
Convertible Senior Notes, due 2048(58)(72)
Total discounts$(60)$(74)
  As of December 31,
  2018 2017
  (In millions)
Term loan facility, due 2023 $(4) $(7)
Midwest Generation, due 2019 (1) (5)
Convertible Senior Notes, due 2048 (96) 
Total discounts $(101) $(12)


Consolidated Annual Maturities
As of December 31, 2018,2021, annual payments based on the maturities of NRG's debt and capitalfinance leases are expected to be as follows:
 (In millions)
2022$
2023
2024603 
2025502 
2026— 
Thereafter7,001 
Total$8,113 

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 (In millions)
2019$74
202026
202127
202225
20231,635
Thereafter4,905
Total$6,692


Recourse DebtSenior Notes
Issuance of 2048 Convertible2032 Senior Notes
On August 23, 2021, the Company issued $1.1 billion of aggregate principal amount of 3.875% senior notes due 2032. The 2032 Senior Notes are senior unsecured obligations of NRG and are guaranteed by certain of its subsidiaries. Interest is paid semi-annually beginning on February 15, 2022 until the maturity date of February 15, 2032. The 2032 Senior Notes were issued under NRG's Sustainability-Linked Bond Framework, which sets out certain sustainability targets, including reducing greenhouse gas emissions. Failure to meet such sustainability targets will result in a 25 basis point increase to the interest rate payable on the 2032 Senior Notes from and including August 15, 2026. The proceeds of the 2032 Senior Notes, along with cash on hand, were used to fund the redemption of $1.0 billion aggregate principal amount of the 7.250% Senior Notes due 2026 and $355 million aggregate principal amounts of the 6.625% Senior Notes due 2027.
Issuance of 2029 Senior Unsecured Notes and 2031 Senior Unsecured Notes
On December 2, 2020, NRG issued $500 million aggregate principal amount of 3.375% senior notes due 2029 (the “2029 Unsecured Notes”) and $1.0 billion aggregate principal amount of 3.625% senior notes due 2031 (the “2031 Unsecured Notes” and, together with the 2029 Unsecured Notes, the “Unsecured Notes”). Interest is payable on the Unsecured Notes on February 15 and August 15 of each year beginning on August 15, 2021 until the maturity date of February 15, 2029 for the 2029 Unsecured Notes and February 15, 2031 for the 2031 Unsecured Notes.
Issuance of 2025 and 2027 Senior Secured First Lien Notes
On December 2, 2020, NRG issued $1.4 billion of aggregate principal amount of senior secured first lien notes, consisting of $500 million 2.000% senior secured first lien notes due 2025 (the “2025 Secured Notes”) and $900 million 2.450% senior secured first lien notes due 2027 (the “2027 Secured Notes” and, together with the 2025 Secured Notes, the “2025 and 2027 Senior Secured First Lien Notes”), at a discount. The 2027 Secured Notes were issued under NRG’s Sustainability-Linked Bond Framework, which sets out certain sustainability targets, including reducing greenhouse gas emissions. Failure to meet such sustainability targets will result in a 25 basis point increase to the interest rate payable on the 2027 Secured Notes from and including the interest period ending on June 2, 2026. The 2025 and 2027 Senior Secured First Lien Notes are guaranteed on a first-priority basis by each of NRG’s current and future subsidiaries that guarantee indebtedness under its credit agreement. The 2025 and 2027 Senior Secured First Lien Notes are secured by a first priority security interest in the same collateral that is pledged for the benefit of the lenders under NRG’s credit agreement, which consists of a substantial portion of the property and assets owned by NRG and the guarantors. The collateral securing the 2025 and 2027 Senior Secured First Lien Notes will be released if the Company obtains an investment grade rating from two out of the three rating agencies, subject to an obligation to reinstate the collateral if such rating agencies withdraw the Company's investment grade rating or downgrade its rating below investment grade. Interest is payable on the 2025 and 2027 Senior Secured First Lien Notes on June 2 and December 2 of each year beginning on June 2, 2021 until the maturity date of December 2, 2025 for the 2025 Secured Notes and December 2, 2027 for the 2027 Secured Notes.
Senior Note Redemptions
During the second quarter of 2018, NRG issued $575 millionyear ended December 31, 2021, the Company redeemed approximately $1.9 billion in aggregate principal amount of 2.75%its Senior Notes for $1.9 billion using the proceeds of the 2032 Senior Notes and cash on hand, as detailed in the table below. In connection with the redemptions, a $77 million loss on debt extinguishment was recorded, which included the write-off of previously deferred financing costs of $12 million.
(In millions, except percentages)Principal Repurchased
Cash Paid(a)
Average Early Redemption Percentage
7.250% Senior Notes, due 2026$1,000 $1,056 103.625 %
6.625% Senior Notes, due 2027855 893 103.313 %
Total$1,855 $1,949 
(a) Includes accrued interest of $29 million for redemptions for the year ended December 31, 2021

2048 Convertible Senior Notes due 2048, or the Convertible Notes.
The Convertible Notes are convertible, under certain circumstances, into the Company's common stock, cash or a combination thereof (at NRG's option) at an initial conversion price of $47.74 per common share, which is equivalent to an initial conversion rate of approximately 20.9479 shares of common stock per $1,000 principal amount of Convertible Notes. Interest on the Convertible Notes is payable semi-annually in arrears on June 1 and December 1 of each year, commencing on December 1, 2018. The Convertible Notes mature on June 1, 2048, unless earlier repurchased, redeemed or converted in accordance with their terms. The Convertible Notes are guaranteed by certain NRG subsidiaries. Prior to the close of business on the business day immediately preceding December 1, 2024, the Convertible Notes will be convertible only upon the occurrence of certain events and during certain periods, and thereafter during specified periods as follows:
from December 1, 2024 until the close of business on the second scheduled trading day immediately before June 1, 2025; and
from December 1, 2047 until the close of business on the second scheduled trading day immediately before the maturity date.
The ConvertibleSenior Notes are accounted for in accordance with ASC 470-20, Debt with Conversion and Other Options. Under ASC 470-20, issuers of convertible debt instruments that may be settled in cash upon conversion, including partial cash settlement, are required to separately account for the liability (debt) and equity (conversion option) components. Prior to February 22, 2022, the Convertible Senior Notes were convertible, under certain circumstances, into the Company's common stock, cash or a combination thereof (at NRG's option) at a price of $44.89 per common share as of December 31, 2021, which is equivalent to a conversion rate of approximately 22.2761 shares of common stock per $1,000 principal amount
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of Convertible Senior Notes. On February 22, 2022, the Company irrevocably elected to eliminate the right to settle conversions only in shares of the Company's common stock, such that any conversion after such date will be settled in cash or a combination of cash and the Company's common stock. As of December 31, 2020, the Convertible Senior Notes were convertible at a price of $46.24 per common share, which is equivalent to a conversion rate of approximately 21.6242 shares of common stock per $1,000 principal amount of Convertible Senior Notes. The carrying amountamounts of the liability component at issuance datecomponents as of $472December 31, 2021 and 2020 of $518 million wasand $503 million, respectively, were calculated by estimating the fair value of similar liabilities without a conversion feature. The residual principal amount offeature at inception and amortizing the notes of $103 million was allocated to the equity component with offset to debt discount. The debt discount will be amortized to interest expense using the effective interest methodrate over seven years which is determined to be the expected life of the Convertible Notes.
The Company incurred approximately $12 million in transaction costs in connection with the issuance of the notes. These costs were allocated to the liability and equity components in proportion to the allocation of proceeds. Transaction costs of $10 million, allocated to the liability component, were recognized as deferred financing costs and are amortized over the seven years. Transaction costs of $2 million, allocated to the equity component, were recognized as a reduction of additional paid-in capital.
Issuance of 2028 Senior Notes
On December 7, 2017, NRG issued $870 million of aggregate principal amount at par of 5.75% senior unsecured notes due 2028. The 2028 Senior Notes are senior unsecured obligations of NRG and are guaranteed by certain of its subsidiaries. Interest is paid semi-annually beginning on July 15, 2018, until the maturity date of January 15, 2028. The proceeds from the issuance of the 2028 Senior Notes were utilized to redeem the Company's 6.625% Senior Notes due 2023.
2018 Senior Note Repurchases
During the year ended December 31, 2018 the Company completed senior note repurchases, as detailed in the table below. In addition, during the year ended December 31, 2018, a $38 million loss on debt extinguishment was recorded for these repurchases, which included the write-off of previously deferred financing costs of $7 million.

Principal Repurchased 
Cash Paid (a)                         
 Average Early Redemption Percentage
In millions, except percentages
 
 
5.750% senior notes due 2028$29
 $30
 99.24%
6.250% senior notes due 202214
 15
 103.25%
Total at June 30, 2018$43
 $45
 
6.250% senior notes due 2022493
 512
 103.13%
5.750% senior notes due 202820
 20
 99.13%
6.625% senior notes due 202720
 21
 103.06%
Total at September 30, 2018$576
 $598
  
6.250% senior notes due 2022485
 508
 103.13%
Total at December 31, 2018$1,061
 $1,106
  
(a) Includes accrued interest of $14 million



2017 Senior Note Redemptions
During the year ended December 31, 2017, the Company redeemed $1.5 billion in aggregate principal of its Senior Notes for $1.5 billion. In connection with the redemptions, a $49 million loss on debt extinguishment was recorded, which included the write-off of previously deferred financing costs of $7 million.
 Principal Repurchased 
Cash Paid (a)             
 Average Early Redemption Percentage
Amount in millions, except percentages     
7.625% senior notes due 2018 
$398
 $411
 101.42%
7.875% senior notes due 2021206
 218
 102.63%
6.625% senior notes due 2023869
 915
 103.57%
Total$1,473
 $1,544
  
(a) Includes accrued interest of $29 million

note.
Senior Notes Early Redemption
As of December 31, 2018,2021, NRG had the following outstanding issuances of senior notes with an early redemption feature, or Senior Notes:
i.6.250% senior notes, issued April 21, 2014 and due November 1, 2024, or the 2024 Senior Notes;
ii.7.250% senior notes, issued May 23, 2016 and due May 15, 2026, or the 2026 Senior Notes;
iii.6.625% senior notes, issued August 2, 2016 and due January 15, 2027, or the 2027 Senior Notes; and
iv.ii.5.750% senior notes, issued December 7, 2017 and due January 15, 2028, or the 2028 Senior Notes;
iii.5.250% senior notes, issued May 24, 2019 and due June 15, 2029, or the 2029 Senior Notes;
iv.3.375% senior notes, issued December 2, 2020 and due February 15, 2029, or the 3.375% 2029 Senior Notes;
v.3.625% senior notes, issued December 2, 2020 and due February 15, 2031, or the 2031 Senior Notes; and
vi.3.875% senior notes, issued August 23, 2021 and due February 15, 2032, or the 2032 Senior Notes.
The Company periodically enters into supplemental indentures for the purpose of adding entities under the Senior Notes as guarantors.
The indentures and the forms of notes provide, among other things, that the Senior Notes will be senior unsecured obligations of NRG. The indentures also provide for customary events of default, which include, among others: nonpayment of principal or interest; breach of other agreements in the indentures; defaults in failure to pay certain other indebtedness; the rendering of judgments to pay certain amounts of money against NRG and its subsidiaries; the failure of certain guarantees to be enforceable; and certain events of bankruptcy or insolvency. Generally, if an event of default occurs, the Trustee or the Holders of at least 25% or 30% (depending on the series of Senior Notes) in principal amount of the then outstanding series of Senior Notes may declare all of the Senior Notes of such series to be due and payable immediately. The terms of the indentures, among other things, limit NRG's ability and certain of its subsidiaries' ability to return capital to stockholders, grant liens on assets to lenders and incur additional debt. Interest is payable semi-annually on the Senior Notes until their maturity dates.
20242027 Senior Notes
At any time prior to May 1, 2019, NRG may redeem up to 35% of the aggregate principal amount of the 2024 Senior Notes, at a redemption price equal to 100% of the principal amount, accrued and unpaid interest to the redemption date, plus a premium. The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess of the principal amount of the note over the following: the present value of 103.125% of the note, plus interest payments due on the note from the date of redemption through May 1, 2019 computed using a discount rate equal to the Treasury Rate as of such redemption date plus 0.50%. In addition, on or after May 1, 2019, NRG may redeem some or all of the notes at redemption prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the notes redeemed to the first applicable redemption date:
Redemption Period
Redemption
Percentage
May 1, 2019 to April 30, 2020103.125%
May 1, 2020 to April 30, 2021102.083%
May 1, 2021 to April 30, 2022101.042%
May 1, 2022 and thereafter100.000%


20262027 Senior Notes
At any time prior to May 15, 2019, NRG may redeem up to 35% of the aggregate principal amount of the 2026 Senior Notes, at a redemption price equal to 107.25% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an amount equal to the net cash proceeds of certain equity offerings. At any time prior to May 15, 2021, NRG may redeem all or a part of the 2026 Senior Notes, at a redemption price equal to 100% of the principal amount, accrued and unpaid interest to the redemption date, plus a premium. The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess of the principal amount of the note over the following: the present value of 103.625% of the note, plus interest payments due on the note from the date of redemption through May 15, 2021 computed using a discount rate equal to the Treasury Rate as of such redemption date plus 0.50%. In addition, on or after May 15, 2021, NRG may redeem some or all of the notes at redemption prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the notes redeemed to the first applicable redemption date:
Redemption Period
Redemption

Percentage
May 15, 2021 to May 14, 2022103.625%
May 15, 2022 to May 14, 2023102.417%
May 15, 2023 to May 14, 2024101.208%
May 15, 2024 and thereafter100.000%
2027 Senior Notes
At any time prior to July 15, 2019, NRG may redeem up to 35% of the aggregate principal amount of the 2027 Senior Notes, at a redemption price equal to 106.625% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an amount equal to the net cash proceeds of certain equity offerings. At any time prior to July 15, 2021 NRG may redeem all or a part of the 2027 Senior Notes, at a redemption price equal to 100% of the principal amount, accrued and unpaid interest to the redemption date, plus a premium. The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess of the principal amount of the note over the following: the present value of 103.313% of the note, plus interest payments due on the note from the date of redemption through July 15, 2021 computed using a discount rate equal to the Treasury Rate as of such redemption date plus 0.50%. In addition, on or after July 15, 2021, NRG may redeem some or all of the notes at redemption prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the notes redeemed to the first applicable redemption date:
Redemption Period
Redemption
Percentage
July 15, 2021 to July14,July 14, 2022103.313%
July 15, 2022 to July 14, 2023102.208%
July 15, 2023 to July 14, 2024101.104%
July 15, 2024 and thereafter100.000%
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2028 Senior Notes
At any time prior to January 15, 2021, NRG may redeem up to 35% of the aggregate principal amount of the 2028 Senior Notes, at a redemption price equal to 105.750% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an amount equal to the net cash proceeds of certain equity offerings. At any time prior to January 15, 2023, NRG may redeem all or a part of the 2028 Senior Notes, at a redemption price equal to 100% of the principal amount of the notes redeemed, plus accrued and unpaid interest to the redemption date, plus a premium. The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess of the principal amount of the note over the following: the present value of 102.875% of the note, plus interest payments due on the note from the date of redemption through January 15, 2023 computed using a discount rate equal to the Treasury Rate as of such redemption date plus 0.50%50%. In addition, on or after January 15, 2023, NRG may redeem some or all of the notes at redemption prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the notes redeemed to the first applicable redemption date:

Redemption Period
Redemption

Percentage
January 15, 2023 to January 14, 2024102.875%
January 15, 2024 to January 14, 2025101.917%
January 15, 2025 to January 14, 2026100.958%
January 15, 2026 and thereafter100.000%

5.250% 2029 Senior Notes
At any time prior to June 15, 2022, NRG may redeem up to 40% of the aggregate principal amount of the 2029 Senior Notes, at a redemption price equal to 105.250% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an amount equal to the net cash proceeds of certain equity offerings, provided that at least 50% of the aggregate principal amount remains outstanding immediately after the occurrence of such redemption. At any time prior to June 15, 2024, NRG may redeem all or a part of the 2029 Senior Notes, at a redemption price equal to 100% of the principal amount of the notes redeemed, plus accrued and unpaid interest to the redemption date, plus a premium. The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess of the principal amount of the note over the following: the present value of 102.625% of the note, plus interest payments due on the note through June 15, 2024 (excluding accrued but unpaid interest to the redemption date), computed using a discount rate equal to the Treasury Rate as of such redemption date plus 0.50%. In addition, on or after June 15, 2024, NRG may redeem some or all of the notes at redemption prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the notes redeemed to the first applicable redemption date:
Redemption PeriodRedemption Percentage
June 15, 2024 to June 14, 2025102.625 %
June 15, 2025 to June 14, 2026101.750 %
June 15, 2026 to June 14, 2027100.875 %
June 15, 2027 and thereafter100.000 %
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3.375% 2029 Senior Notes
At any time prior to February 15, 2024, NRG may redeem up to 40% of the aggregate principal amount of the 2029 Senior Notes, at a redemption price equal to 103.375% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an amount equal to the net cash proceeds of certain equity offerings, provided that at least 50% of the aggregate principal amount remains outstanding immediately after the occurrence of such redemption. At any time prior to February 15, 2024, NRG may redeem all or a part of the 2029 Senior Notes, at a redemption price equal to 100% of the principal amount of the notes redeemed, plus accrued and unpaid interest to the redemption date, plus a premium. The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess of the principal amount of the note over the following: the present value of 101.688% of the note, plus interest payments due on the note through February 15, 2024 (excluding accrued but unpaid interest to the redemption date), computed using a discount rate equal to the Treasury Rate as of such redemption date plus 0.50%. In addition, on or after February 15, 2024, NRG may redeem some or all of the notes at redemption prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the notes redeemed to the first applicable redemption date:
Redemption PeriodRedemption Percentage
February 15, 2024 to February 14, 2025101.688 %
February 15, 2025 to February 14, 2026100.844 %
February 15, 2026 and thereafter100.000 %

2031 Senior Notes
At any time prior to February 15, 2026, NRG may redeem up to 40% of the aggregate principal amount of the 2031 Senior Notes, at a redemption price equal to 103.625% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an amount equal to the net cash proceeds of certain equity offerings, provided that at least 50% of the aggregate principal amount remains outstanding immediately after the occurrence of such redemption. At any time prior to February 15, 2026, NRG may redeem all or a part of the 2031 Senior Notes, at a redemption price equal to 100% of the principal amount of the notes redeemed, plus accrued and unpaid interest to the redemption date, plus a premium. The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess of the principal amount of the note over the following: the present value of 101.813% of the note, plus interest payments due on the note through February 15, 2026 (excluding accrued but unpaid interest to the redemption date), computed using a discount rate equal to the Treasury Rate as of such redemption date plus 0.50%. In addition, on or after February 15, 2026, NRG may redeem some or all of the notes at redemption prices expressed as percentages of principal amount as set forth in the following table, plus accrued and unpaid interest on the notes redeemed to the first applicable redemption date:
Redemption PeriodRedemption Percentage
February 15, 2026 to February 14, 2027101.813 %
February 15, 2027 to February 14, 2028101.208 %
February 15, 2028 to February 14, 2029100.604 %
February 15, 2029 and thereafter100.000 %

2032 Senior Notes
At any time prior to August 15, 2024, NRG may redeem up to 40% of the aggregate principal amount of the 2032 Senior Notes, at a redemption price equal to 103.875% of the principal amount of the notes redeemed, plus accrued and unpaid interest, with an amount equal to the net cash proceeds of certain equity offerings, provided that at least 50% of the aggregate principal amount remains outstanding immediately after the occurrence of such redemption. At any time prior to February 15, 2027, NRG may redeem all or a part of the 2032 Senior Notes, at a redemption price equal to 100% of the principal amount of the notes redeemed, plus accrued and unpaid interest to the redemption date, plus a premium. The premium is the greater of: (i) 1% of the principal amount of the notes; or (ii) the excess of (A) the present value of (1) the redemption price of the note at February 15, 2027 (such redemption price being set forth in the table appearing below in the column “Redemption Percentage (If Sustainability Performance Target has not been satisfied and/or confirmed by External Verifier)” unless the Sustainability Performance Target has been satisfied in respect of the year ended December 31, 2025 and the Company has provided confirmation thereof to the Trustee together with a related confirmation by the External Verifier by the date that is at least 15 days prior to August 15, 2026 in which case the redemption price shall be as set forth in the column “Redemption Percentage (If Sustainability Performance Target has been satisfied and confirmed by External Verifier)”) plus (2) interest payments due on the note through February 15, 2027 (excluding accrued but unpaid interest to the redemption date) computed using a discount rate equal to the Treasury Rate as of such redemption date plus 0.50%, over (B) the principal amount of the note. In addition, on
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or after February 15, 2027, NRG may redeem some or all of the notes at redemption prices expressed as percentages of principal amount as set forth in the following table during the twelve-month period beginning on February 15 of the years indicated below, plus accrued and unpaid interest on the notes redeemed to the first applicable redemption date:
YearRedemption Percentage
(If Sustainability Performance Target has been satisfied and confirmed by External Verifier)
Redemption Percentage
(If Sustainability Performance Target has not been satisfied and/or confirmed by External Verifier)
2027101.938 %102.188 %
2028101.292 %101.458 %
2029100.646 %100.729 %
2030 and thereafter100.000 %100.000 %
Receivables Facility
On September 22, 2020, NRG Receivables LLC, a bankruptcy remote, special purpose, indirect wholly owned subsidiary, entered into the Receivables Facility for an amount up to $750 million, subject to adjustments on a seasonal basis, with issuers of asset-backed commercial paper and commercial banks (the "Lenders".) The assets of NRG Receivables LLC are first available to satisfy the claims of the Lenders before making payments on the subordinated note and equity issued by NRG Receivables LLC. The assets of NRG Receivables LLC are not available to the Company and its subsidiaries or creditors unless and until distributed by NRG Receivables LLC. Under the Receivables Facility, certain indirect subsidiaries of the Company sell their accounts receivables to NRG Receivables LLC, subject to certain terms and conditions. In turn, NRG Receivables LLC grants a security interest in the purchased receivables to the Lenders as collateral for cash borrowings and issuances of letters of credit. Pursuant to the Performance Guaranty, the Company has guaranteed, for the benefit of NRG Receivables and the Lenders, the payment and performance by each indirect subsidiary of its respective obligations under the Receivables Facility. The accounts receivables remain on the Company's consolidated balance sheet and any amounts funded by the Lenders to NRG Receivables LLC will be reflected as short-term borrowings. Cash flows from the Receivables Facility are reflected as financing activities in the Company's consolidated statements of cash flows. The Company will continue to service the accounts receivables sold in exchange for a servicing fee.
On July 26, 2021, NRG Receivables LLC entered into the First Amendment to the Receivables Facility with a group of conduit lenders and banks and Royal Bank of Canada, as Administrative Agent to, among other things, (i) increase the existing revolving commitments by $50 million to an aggregate amount of $800 million, (ii) extend the maturity date until July 26, 2022, (iii) make certain adjustments to the pool of receivables through the Receivables Facility and certain related covenants and (iv) provide for revised language relating to interest determination based on SOFR in case of a LIBOR cessation or the occurrence of certain other trigger events. Borrowings by NRG Receivables LLC under the Receivables Facility bear interest as defined under the Receivables Financing Agreement. The weighted average interest rate related to usage under the Receivables Facility as of December 31, 2021 was 0.646%. As of December 31, 2021, there were no outstanding borrowings and there were $400 million in letters of credit issued under the Receivables Facility.
Repurchase Facility
On September 22, 2020, the Company entered into the Repurchase Facility related to the Receivables Facility. Under the Repurchase Facility, the Company can borrow up to $75 million, collateralized by a subordinated note issued by NRG Receivables LLC to NRG Retail LLC in favor of the originating entities representing a portion of the balance of receivables sold to NRG Receivables LLC under the Receivables Facility.
On July 26, 2021, the Company renewed its existing Repurchase Facility to, among other things, (i) extend the maturity date to July 26, 2022 and (ii) provide for revised language relating to interest determination based on SOFR in case of a LIBOR cessation or the occurrence of certain other trigger events. On February 9, 2022, the Company entered into amendments to its existing Repurchase Facility to, among other things, (i) increase the size of the facility from $75 million to $150 million and (ii) replace LIBOR with term SOFR as the benchmark for the pricing rate. The Repurchase Facility has no commitment fee and borrowings will be drawn at SOFR + 1.30%. As of December 31, 2021, there were no outstanding borrowings under the Repurchase Facility.
Senior Credit Facility
On June 30, 2016, NRG replaced the previous senior credit facility, consisting of its Term Loan Facility and Revolving Credit Facility withModification
During the third quarter of 2020, the Company amended its existing credit agreement to, among other things, (i) increase the existing revolving commitments in an aggregate amount of $802 million, and (ii) provide for a new senior secured facility, or the Senior Credit Facility, which includes the following:

A $1.9 billion term loan facility, or the 2023 Term Loan Facility, with a maturity datetranche of June 30, 2023, which will pay interest at a raterevolving commitments in an aggregate amount of LIBOR plus 2.75%, with a LIBOR floor of 0.75%. The debt was issued at 99.50% of face value; the discount will be amortized to interest expense over the term of the loan. Repayments under the 2023 Term Loan Facility will consist of 0.25% of principal per quarter, with the remainder due at maturity. On January 24, 2017, NRG repriced the 2023 Term Loan Facility, reducing the interest rate margin by 50 basis points to LIBOR plus 2.25%, the LIBOR floor remains 0.75%. On March 21, 2018, NRG again repriced the 2023 Term Loan Facility, reducing the interest rate margin by 50 basis points to LIBOR plus 1.75% and reducing the LIBOR floor to 0.00%.

A $289$273 million revolving senior credit facility, or the Tranche A Revolving Facility, with a maturity date of July 1, 2018 and a $2.2 billion revolving senior credit facility, or the Tranche B Revolving Facility, with a5, 2023. The maturity date of June 30, 2021,the new revolving tranche of commitments may, upon request by the Company, and at the option of each applicable lender under the
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new tranche be extended to May 28, 2024, which both pay interest at a rate of LIBOR plus 2.25%. On May 7, 2018, NRG entered into the third amendment agreement extendingis the maturity date of the Tranche A revolving facilityexisting and increased commitments. Other than with respect to June 30, 2021, for the Tranche A accepting lender.

In accordance withmaturity date, the terms of all revolving commitments and loans made pursuant thereto are identical. The increase in the existing commitments, and the commitments with respect to the new tranche were effective on August 20, 2020 and became available on January 5, 2021 upon the closing of the Direct Energy Acquisition. As of December 31, 2021, total revolving commitments available, subject to usage, under the amended credit agreement was $3.7 billion.
Credit Agreement, on October 5, 2018,Default Swap Facility
On January 4, 2019, the Company initiatedentered into an asset sale offer$80 million credit agreement to purchaseissue letters of credit, which is currently supporting the Cottonwood facility lease. Annual fees of 1.33% on the facility were paid quarterly in advance. On August 13, 2020, the agreement was amended permitting the Company to increase the size of the facility and fees on the facility were adjusted to reflect the costs of the credit default swaps that serve as collateral for the facility. In order to increase the Company’s collective collateral facilities in connection with the Direct Energy acquisition, NRG expanded the facility allowing for the issuance of an additional $150 million of letters of credit as of December 31, 2020. As of December 31, 2021, $222 million was issued under this facility.
Bilateral Letter of Credit Facilities
In December 2020 the Company entered into a portionseries of its Term Loan followingBilateral Letter of Credit Facilities to allow for the issuance of up to $475 million of letters of credit.These facilities are uncommitted. As of December 31, 2021, $469 million was issued under these facilities.
Put Option Agreement for Senior Debt Issuance
During the fourth quarter of 2020, the Company entered into a 3-year put option agreement with a Delaware trust formed by the Company upon completion of the sale of $900 million pre-capitalized trust securities redeemable November 15, 2023 (the “P-Caps”). The Trust invested the proceeds from the sale of the P-Caps in a portfolio of principal and interest strips of U.S. Treasury securities (the “Eligible Treasury Assets”). Under the put option agreement, NRG Yieldhas the right, from time to time, to issue to the Trust and to require the Renewables Platform. The offer expiredTrust to purchase from NRG, on November 5, 2018 and $260one or more occasions (the “Issuance Right”), up to $900 million of Term Loan holders accepted the offer. As a result, the Company prepaid $155 million of Term Loans as part of its de-leveraging plan, as well as established an incremental first lien secured term loan facility under the Senior Credit Facility in the aggregate principal amount of $105 million on the same terms and conditions to stay within its debt reduction target. In addition, a $3 million loss on debt extinguishment was recorded, which included the write-off of previously deferred financing costs of $2 million.

In accordance with the terms of the credit agreement, upon the consummation of the sales of the South Central Portfolio and Carlsbad, the Company will initiate asset sale offers to purchaseNRG’s 1.841% Senior Secured First Lien Notes due 2023 (the “P-Caps Secured Notes”) in exchange for all or a portion of the Eligible Treasury Assets corresponding to the portion of the Issuance Right. NRG will pay a semi-annual premium to the Trust at a rate of 1.65%.
In connection with the issuance of the P-Caps, on December 11, 2020, NRG entered into an amended and restated facility agreement for the issuance of letters of credit (the “LC Agreement”) with Deutsche Bank Trust Company Americas as collateral agent (the “Collateral Agent”) and administrative agent pursuant to which certain financial institutions (the “LC Issuers”) have agreed to provide letters of credit in an aggregate amount not to exceed $874 million to support the operations of NRG and its Term Loan. The Company has one yearsubsidiaries and minority investments, including to replace certain letters of credit and other credit support issued for the account of entities acquired pursuant to the Direct Energy Acquisition. In addition, on December 11, 2020, the Trust entered into an amended and restated pledge and control agreement (the “Pledge Agreement”), among NRG, the Trust and the Collateral Agent for the LC Issuers, under which the Trust agreed to grant a pledge over the Eligible Treasury Assets in favor of the Collateral Agent for the benefit of the LC Issuers. Pursuant to the LC Agreement and the Pledge Agreement, the Collateral Agent is entitled to withdraw Eligible Treasury Assets from the datesTrust’s pledged account, following notice to NRG, in the event NRG has failed to reimburse amounts drawn under any letter of each salecredit issued pursuant to initiate the offer.LC Agreement, and the LC Issuers have the right to instruct the Collateral Agent to enforce the pledge over the Eligible Treasury Assets upon the occurrence of any event of default under the LC Agreement. The LC Agreement and the Pledge Agreement were available on January 5, 2021. As of December 31, 2021, $873 million of letters of credit were issued under the LC Agreement.

Tax Exempt Bonds
As of December 31,
(In millions, except rates)20212020Interest Rate %
NRG Indian River Power 2020, tax exempt bonds, due 2040$57 $57 1.250 
NRG Indian River Power 2020, tax exempt bonds, due 2045190 190 1.250 
NRG Dunkirk 2020, tax exempt bonds, due 204259 59 1.300 
City of Texas City, tax exempt bonds, due 204533 33 4.125 
Fort Bend County, tax exempt bonds, due 203854 54 4.750 
Fort Bend County, tax exempt bonds, due 204273 73 4.750 
Total$466 $466 

133


  As of December 31,  
  2018 2017 Interest Rate %
Amount in millions, except rates      
Indian River Power, tax exempt bonds, due 2040 $57
 $57
 6.000
Indian River Power LLC, tax exempt bonds, due 2045 190
 190
 5.375
Dunkirk Power LLC, tax exempt bonds, due 2042 59
 59
 5.875
City of Texas City, tax exempt bonds, due 2045 33
 32
 4.125
Fort Bend County, tax exempt bonds, due 2038 54
 54
 4.750
Fort Bend County, tax exempt bonds, due 2042 73
 73
 4.750
Total $466
 $465
 
Dunkirk Bonds

Non-Recourse Debt
On March 11, 2020, NRG issued $59 million in aggregate principal amount of NRG Dunkirk 2020 1.30% tax-exempt refinancing bonds due 2042 (the "Dunkirk Bonds"). The followingDunkirk Bonds are descriptionsguaranteed on a first-priority basis by each of certain indebtedness of NRG'sNRG’s current and future subsidiaries that guarantee indebtedness under its credit agreement. The Dunkirk Bonds are outstanding as of December 31, 2018. All of NRG's non-recourse debt is secured by the assetsa first priority security interest in the respective project subsidiaries as further described below.same collateral that is pledged for the benefit of the lenders under NRG’s credit agreement, which consists of a substantial portion of the property and assets owned by NRG and the guarantors. The collateral securing the Dunkirk Bonds will, at the request of NRG, be released if NRG satisfies certain conditions, including receipt of an investment grade rating on its senior, unsecured debt securities from two out of the three rating agencies, subject to reversion if those rating agencies withdraw their investment grade rating of the Dunkirk Bonds or any of NRG’s senior, unsecured debt securities or downgrade such rating below investment grade. The Dunkirk Bonds are subject to mandatory tender and purchase on April 3, 2023 and have a final maturity date of April 1, 2042.
Midwest Generation
On April 7, 2016, Midwest Generation, LLC, or MWG, entered into an agreement to sell certain quantities of unforced capacity that has cleared various PJM Reliability Pricing Model auctions to a trading counterparty forNRG used the net proceeds from the offering to redeem during 2020 the existing principal amount of $253 million. MWG will continue to operateoutstanding Dunkirk Power LLC 5.875% tax exempt bonds due 2042.
Indian River Bonds
On December 17, 2020, NRG issued $57 million in aggregate principal amount of NRG Indian River 2020 1.25% tax-exempt refinancing bonds due 2040 (the "IR 2040 Bonds") and $190 million aggregate principal amount of NRG Indian River Power 2020 1.25% tax-exempt refinancing bonds due 2045 (the "IR 2045 Bonds") (together the applicable generation facilities"IR Bonds"). The IR Bonds are guaranteed on a first-priority basis by each of NRG’s current and remains responsiblefuture subsidiaries that guarantee indebtedness under its credit agreement. The IR Bonds are secured by a first priority security interest in the same collateral that is pledged for performance penalties and eligible for performance bonus payments, if any. Accordingly, MWG will continue to account for all revenues and costs as before; however, the proceeds will be recorded as a financing obligation while capacity payments by PJM to the counterparty will be reflected as debt amortization and interest expense through the endbenefit of the 2018/19 delivery year.MWG will amortize the upfront discount to interest expense, at an effective interest ratelenders under NRG’s credit agreement, which consists of 4.39%, over the terma substantial portion of the arrangement, through June 2019. Asproperty and assets owned by NRG and the guarantors. The collateral securing the IR Bonds will, at the request of December 31, 2018, $48 million was outstanding.
Agua Caliente Borrower I
On January 22, 2019, the lendersNRG, be released if NRG satisfies certain conditions, including receipt of an investment grade rating on its senior, unsecured debt securities from two out of the Agua Borrower I debt notified the Company of certain defaults under the financing agreement as it relatesthree rating agencies, subject to the bankruptcy filing made by PG&E on January 29, 2019. PG&E is the offtakerreversion if those rating agencies withdraw their investment grade rating of the underlying contracts, whichIR Bonds or any of NRG’s senior, unsecured debt securities or downgrade such rating below investment grade. The IR Bonds are material. The financing was entered into along with Agua Caliente Borrower 2,subject to mandatory tender and purchase on October 1, 2025 and have final maturity dates of October 1, 2040 for the IR 2040 Bonds and October 1, 2045 for the IR 2045 Bonds.
NRG used the net proceeds from the offering to redeem during 2020 the existing principal amounts of outstanding Indian River Power 6.000% tax exempt bonds due 2040 and Indian River Power LLC a subsidiary of Clearway Energy Inc., which is joint and several to the parties. The Company is working with the lenders to determine a path forward.5.375% tax exempt bonds due 2045.


Note 12 14 — Asset Retirement Obligations
The Company's AROs are primarily related to the environmental obligations related tofor nuclear decommissioning, mine reclamation, ash disposal, site closures, and fuel storage facilities and future dismantlement of equipment on leased property. In addition, the Company has also identified conditional AROs for asbestos removal and disposal, which are specific to certain power generation operations.
See Note 6, 7, Nuclear Decommissioning Trust Fund,, for a further discussion of the Company's nuclear decommissioning obligations. Accretion for the nuclear decommissioning ARO and amortization of the related ARO asset are recorded to the Nuclear Decommissioning Trust Liability to the ratepayers and are not included in net income, consistent with treatment per ASC 980, Regulated Operations. Nuclear decommissioning ARO liabilities were $282 million and $269 million as of December 31, 2018 and 2017, respectively.
The following table represents the balance of ARO obligations as of December 31, 20182021 and 2017,2020, along with the additions, reductions and accretion related to the Company's ARO obligations for the year ended December 31, 2018:2021:
(In millions)Nuclear Decommission
Other(a)
Total
Balance as of December 31, 2020$303 $457 $760 
Revisions in estimates for current obligations— (36)(36)
Additions— 
Spending for current obligations— (51)(51)
Accretion18 24 42 
Balance as of December 31, 2021$321 $399 $720 
(a)Total accretion expense related to asset retirement obligations included in the consolidated statement of cash flows includes accretion and revisions in estimates for asset retirement liabilities on non-operating plants

134
 (In millions)
Balance as of December 31, 2017$679
Revisions in estimates for current obligations(27)
Additions9
Spending for current obligations(27)
Accretion — Expense30
Accretion — Nuclear decommissioning15
Balance as of December 31, 2018$679



Note 1315 — Benefit Plans and Other Postretirement Benefits
NRG sponsors and operates defined benefit pension and other postretirement plans.
NRG pension benefits are available to eligible non-union and union employees through various defined benefit pension plans. These benefits are based on pay, service history and age at retirement. Most pension benefits are provided through tax-qualified plans. NRG also provides postretirement health and welfare benefits for certain groups of employees. Cost sharing provisions vary by the terms of any applicable collective bargaining agreements.

NRG maintains two3 separate qualified pension plans, the NRG Pension Plan for Bargained Employees, and the NRG Pension Plan.Plan and the Pension Plan for Employees of Direct Energy Marketing Limited ("DEML"). Participation in the NRG participate in each of the pension plans, dependingPension Plan for Bargained Employees depends upon whether their employmentan employee is covered by a bargaining agreement.
The NRG and GenOn entered into a Restructuring Support Agreement in which NRG agreed to retain GenOn's pension liabilityPension plan was frozen for service provided by GenOnnon-union employees prior to the completion of the GenOn reorganization. NRG determined that the retention of this liability was probable and recorded the estimated accumulated pension benefit obligation as ofon December 31, 20172018. The Pension Plan for Employees of $92 million, which reflectsDEML is closed to new participants.
Due to updated assumptions as a $13 million contribution made byresult of ARPA, NRG to the plan in 2017, in other non-current liabilities with a corresponding loss from discontinued operations. NRG also agreed to retain the liability for GenOn's post-employment and retiree health and welfare benefits with the obligation capped at $25 million. NRG's obligation for both of these liabilities was revalued at GenOn's emergence from bankruptcy.
NRG expectsdoes not expect to contribute $41 million to the Company's pension plans in 2019, of which $13 million relates to GenOn.2022.
NRG Defined Benefit Plans
The annual net periodic benefit cost/(credit) related to NRG's pension and other postretirement benefit plans include the following components:
 Year Ended December 31,
 Pension Benefits
 (In millions)202120202019
Service cost benefits earned$$10 $10 
Interest cost on benefit obligation27 38 46 
Expected return on plan assets(66)(61)(59)
Amortization of unrecognized net loss
Settlement/curtailment expense— — 
Net periodic benefit (credit)/cost$(27)$(8)$— 
Year Ended December 31,
Year Ended December 31, Other Postretirement Benefits
Pension Benefits
2018 2017 2016
(In millions)
(In millions)(In millions)202120202019
Service cost benefits earned$23
 $26
 $30
Service cost benefits earned$— $— $
Interest cost on benefit obligation44
 43
 43
Interest cost on benefit obligation
Expected return on plan assets(62) (58) (60)
Amortization of unrecognized prior service costAmortization of unrecognized prior service cost(10)(14)(13)
Amortization of unrecognized net loss
 4
 2
Amortization of unrecognized net loss— 
Settlement/curtailment expense7
 
 
Net periodic benefit cost$12
 $15
 $15
Curtailment lossCurtailment loss— — 
Net periodic benefit creditNet periodic benefit credit$(6)$(10)$(9)
135

 Year Ended December 31,
 Other Postretirement Benefits
 2018 2017 2016
 (In millions)
Service cost benefits earned$1
 $1
 $2
Interest cost on benefit obligation4
 4
 6
Amortization of unrecognized prior service credit(10) (9) (5)
Amortization of unrecognized net (gain)/loss
 (1) 
Curtailment gain(10) 
 
Net periodic benefit (credit)/cost$(15) $(5) $3


A comparison of the pension benefit obligation, other postretirement benefit obligations and related plan assets for NRG's plans on a combined basis is as follows:
 As of December 31,
 Pension BenefitsOther Postretirement
Benefits
(In millions)2021202020212020
Benefit obligation at January 1$1,489 $1,397 $90 $93 
Acquired benefit obligation from Direct Energy74 — 19 — 
Service cost10 — — 
Interest cost27 38 
Actuarial (gain)/loss(55)126 — — 
Employee and retiree contributions— — 
Curtailment loss— — — 
Benefit payments(93)(82)(10)(9)
Foreign exchange translation— — — 
Benefit obligation at December 311,452 1,489 105 90 
Fair value of plan assets at January 11,272 1,150 — — 
Acquired fair value of plan assets from Direct Energy64 — 0— 
Actual return on plan assets85 193 — — 
Employee and retiree contributions— — 
Employer contributions11 
Benefit payments(93)(82)(10)(9)
Foreign exchange translation— — — 
Fair value of plan assets at December 311,336 1,272 — — 
Funded status at December 31 — excess of obligation over assets$(116)$(217)$(105)$(90)
 As of December 31,
 Pension Benefits 
Other Postretirement
Benefits
 2018 2017 2018 2017
 (In millions)
Benefit obligation at January 1$1,329
 $1,241
 $128
 $128
Service cost23
 26
 1
 1
Interest cost44
 43
 4
 4
Plan amendments17
 
 (28) (1)
Actuarial (gain)/loss(95) 77
 (6) 6
Employee and retiree contributions
 
 3
 3
Curtailment gain(20) 
 (7) 
Benefit payments(76) (58) (12) (13)
Benefit obligation at December 311,222
 1,329
 83
 128
Fair value of plan assets at January 11,104
 953
 
 
Actual return on plan assets(80) 173
 
 
Employee and retiree contributions
 
 3
 3
Employer contributions33
 36
 9
 10
Benefit payments(76) (58) (12) (13)
Fair value of plan assets at December 31981
 1,104
 
 
Funded status at December 31 — excess of obligation over assets$(241) $(225) $(83) $(128)
Less: GenOn postretirement obligation(a)

 
 
 38
Add: Retained obligation in bankruptcy proceeding(a)

 
 
 (25)
Net obligation for NRG$(241) $(225) $(83) $(115)

(a)NRG's liability for GenOn's other postretirement benefit plans was capped at $25 million, with the final liability assumed determined as of GenOn's emergence from bankruptcy. As of December 31, 2017, the liability was $38 million so NRG's obligation was recorded at the $25 million cap. Upon emergence, the retained liability was $23 million, therefore NRG is obligated for the full retained liability of the plans.
During the year ended December 31, 2021, the actuarial gain of $55 million on pension benefits was primarily driven by increasing discount rates and changes in demographic assumptions.
During the year ended December 31, 2020, the actuarial loss of $126 million on pension benefits was driven by decreasing discount rates and changes in demographic assumptions, partially offset by gains from life expectancy projection updates.
Amounts recognized in NRG's balance sheets were as follows:
 As of December 31,
 Pension Benefits
Other Postretirement
Benefits
(In millions)2021202020212020
Other current liabilities$— $— $$
Other non-current liabilities116 217 98 85 
 As of December 31,
 Pension Benefits 
Other Postretirement
Benefits
 2018 2017 2018 2017
 (In millions)
Current liabilities$
 $
 $7
 $7
Less: GenOn other postretirement benefits
 
 
 (3)
Total current liabilities$
 $
 $7
 $4
        
Non-current liabilities$241
 $225
 $76
 $121
Less: GenOn other postretirement benefits
 
 
 (10)
Total non-current liabilities$241
 $225
 $76
 $111



Amounts recognized in NRG's accumulated OCI that have not yet been recognized as components of net periodic benefit cost were as follows:
 As of December 31,
 Pension Benefits
Other Postretirement
Benefits
(In millions)2021202020212020
Net loss$52 $127 $$
Prior service cost/(credit)(19)(29)
Total accumulated OCI$54 $129 $(14)$(23)

136

 As of December 31,
 Pension Benefits 
Other Postretirement
Benefits
 2018 2017 2018 2017
 (In millions)
Net loss/(gain)$90
 $53
 $(9) $(4)
Prior service cost/(credit)3
 3
 (53) (37)
Total accumulated OCI$93
 $56
 $(62) $(41)
Less: GenOn (deconsolidated June 14, 2017)
 (22) 
 10
Net accumulated OCI$93
 $34
 $(62) $(31)

Other changes in plan assets and benefit obligations recognized in OCI were as follows:
 Year Ended December 31,
 Pension Benefits
Other Postretirement
Benefits
(In millions)2021202020212020
Net actuarial gain$(72)$(6)$— $— 
Amortization of net actuarial loss(1)(5)(1)(1)
Amortization of prior service cost— — 10 14 
Effect of settlement(2)— — — 
Total recognized in OCI$(75)$(11)$$13 
Net periodic benefit credit(27)(8)(6)(10)
Net recognized in net periodic pension credit and OCI$(102)$(19)$$
 Year Ended December 31,
 
Pension
Benefits
 
Other Postretirement
Benefits
 2018 2017 2018 2017
 (In millions)
Net actuarial loss/(gain)$47
 $(37) $(5) $6
Amortization of net actuarial (gain)/loss
 (4) 
 1
Curtailment(27) 
 2
 
Prior service credit17
 
 (28) (1)
Amortization of prior service cost
 
 10
 9
Total recognized in OCI$37
 $(41) $(21) $15
Less: GenOn (deconsolidated June 14, 2017)
 15
 $
 $2
Net recognized in OCI$37
 $(26) $(21) $17
Less: GenOn post deconsolidation net periodic benefit cost
 
 
 1
Net periodic benefit cost/(credit)12
 15
 (15) (5)
Net recognized in net periodic pension cost/(credit) and OCI$49
 $(11) $(36) $13
As a result of GenOn's deconsolidation during 2017, NRG reduced the loss recorded in other comprehensive income by $28 million related to GenOn's pension and other postretirement benefits.
The Company's estimated unrecognized loss and unrecognized prior service cost for NRG's pension plan that will be amortized from accumulated OCI to net periodic cost over the next fiscal year is $4 million and $0 million, respectively. The Company's estimated unrecognized gain and unrecognized prior service credit for NRG's postretirement plan that will be amortized from accumulated OCI to net periodic cost over the next fiscal year is less than $1 million and $13 million, respectively.
The following table presents the balances of significant components of NRG's pension plan:
 As of December 31,
 Pension Benefits
(In millions)20212020
Projected benefit obligation$1,452 $1,489 
Accumulated benefit obligation1,423 1,455 
Fair value of plan assets1,336 1,272 
 As of December 31,
 Pension Benefits
 2018 2017
 (In millions)
Projected benefit obligation$1,222
 $1,329
Accumulated benefit obligation1,188
 1,255
Fair value of plan assets981
 1,104


NRG's market-related value of its plan assets is the fair value of the assets. The fair values of the Company's pension plan assets by asset category and their level within the fair value hierarchy are as follows:
 Fair Value Measurements as of December 31, 2021
(In millions)
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant
Observable Inputs
(Level 2)
Total
Common/collective trust investment — U.S. equity$— $221 $221 
Common/collective trust investment — non-U.S. equity— 69 69 
Common/collective trust investment — non-core assets— 110 110 
Common/collective trust investment — fixed income— 340 340 
Short-term investment fund13 — 13 
Subtotal fair value$13 $740 $753 
Measured at net asset value practical expedient:
Common/collective trust investment — non-U.S. equity78 
Common/collective trust investment — fixed income405 
Common/collective trust investment — non-core assets65 
Partnerships/joint ventures35 
Total fair value$1,336 
137


 Fair Value Measurements as of December 31, 2018
 
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
 
Significant
Observable Inputs
(Level 2)
 Total
 (In millions)
Common/collective trust investment — U.S. equity$
 $183
 $183
Common/collective trust investment — non-U.S. equity
 53
 53
Common/collective trust investment — non-core assets
 117
 117
Common/collective trust investment — fixed income
 256
 256
Short-term investment fund12
 
 12
Subtotal fair value$12
 $609
 $621
Measured at net asset value practical expedient

 

 

Common/collective trust investment — non-U.S. equity

 

 70
Common/collective trust investment — fixed income

 

 249
Common/collective trust investment — non-core assets    16
Partnerships/joint ventures

 

 25
Total fair value

 

 $981
Fair Value Measurements as of December 31, 2020
Fair Value Measurements as of December 31, 2017
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
 
Significant
Observable Inputs
(Level 2)
 Total
(In millions)
(In millions)(In millions)
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant
Observable Inputs
(Level 2)
Total
Common/collective trust investment — U.S. equity$
 $256
 $256
Common/collective trust investment — U.S. equity$— $284 $284 
Common/collective trust investment — non-U.S. equity
 66
 66
Common/collective trust investment — non-U.S. equity— 113 113 
Common/collective trust investment — non-core assets
 178
 178
Common/collective trust investment — non-core assets— 151 151 
Common/collective trust investment — fixed income
 230
 230
Common/collective trust investment — fixed income— 258 258 
Short-term investment fund5
 
 5
Short-term investment fund13 — 13 
Subtotal fair value$5
 $730
 $735
Subtotal fair value$13 $806 $819 
Measured at net asset value practical expedient

 

 

Measured at net asset value practical expedient:Measured at net asset value practical expedient:
Common/collective trust investment — non-U.S. equity

 

 94
Common/collective trust investment — non-U.S. equity45 
Common/collective trust investment — fixed income

 

 233
Common/collective trust investment — fixed income289 
Common/collective trust investment — non-core assetsCommon/collective trust investment — non-core assets84 
Partnerships/joint ventures

 

 42
Partnerships/joint ventures35 
Total fair value

 

 $1,104
Total fair value$1,272 
In accordance with ASC 820, the Company determines the level in the fair value hierarchy within which each fair value measurement in its entirety falls, based on the lowest level input that is significant to the fair value measurement in its entirety. The fair value of the common/collective trust investments is valued at fair value which is equal to the sum of the market value of all of the fund's underlying investments. Certain common/collective trust investments have readily determinable fair value as they publish daily net asset value, or NAV, per share and are categorized as Level 2. Certain other common/collective trust investments and partnerships/joint ventures use NAV per share, or its equivalent, as a practical expedient for valuation, and thus have been removed from the fair value hierarchy table.
The following table presents the significant assumptions used to calculate NRG's benefit obligations:
As of December 31, As of December 31,
Pension Benefits Other Postretirement Benefits Pension BenefitsOther Postretirement Benefits
Weighted-Average Assumptions2018 2017 2018 2017Weighted-Average Assumptions2021202020212020
Discount rate4.38% 3.71% 4.37% 3.71%Discount rate2.89 %2.56 %2.89 %2.54 %
Interest crediting rateInterest crediting rate3.07 %3.12 %1.94 %1.62 %
Rate of compensation increase3.00% 3.00% % 
Rate of compensation increase3.06 %3.00 %— %— %
Health care trend rate
 
 7.8% grading to 4.5% in 2025

8.2% grading to 4.5% in 2025
Health care trend rate— —  6.8% grading to 4.4% in 20287.2% grading to 4.5% in 2028
The following table presents the significant assumptions used to calculate NRG's benefit expense:
 As of December 31,
 Pension BenefitsOther Postretirement Benefits
Weighted-Average Assumptions202120202019202120202019
Discount rate2.55 %3.26 %4.38%/4.20%2.81%3.26 %4.37 %
Interest crediting rate3.13 %3.66 %— 1.62 %2.28 %— 
Expected return on plan assets5.62 %5.93 %6.35 %— — — 
Rate of compensation increase3.06 %3.00 %3.00 %— — — 
Health care trend rate— — —  7.0% grading to 4.4% in 2028 7.5% grading to 4.5% in 20287.8% grading to 4.5% in 2025
138


 As of December 31,
 Pension Benefits Other Postretirement Benefits
Weighted-Average Assumptions2018 2017 2016 2018 2017 2016
Discount rate3.71%/4.04%
 4.26% 4.52% 3.71%/4.08%
 4.29% 4.55%
Expected return on plan assets6.17% 6.85% 6.65% 
 
 
Rate of compensation increase3.00% 3.00% 3.00% 
 
 
Health care trend rate
 
 
 8.2% grading to 4.5% in 2025

7.0% grading to 5.0% in 2025

7.25% grading to 5.0% in 2025
NRG uses December 31 of each respective year as the measurement date for the Company's pension and other postretirement benefit plans. The Company sets the discount rate assumptions on an annual basis for each of NRG's defined benefit retirement plans as of December 31. The discount rate assumptions represent the current rate at which the associated liabilities could be effectively settled at December 31. The Company utilizes the Aon AA Above Median, or AA-AM, yield curve and the AON Canada yield curve to select the appropriate discount rate assumption for eachits retirement plan.plans. The AA-AM yield curve is a hypothetical AA yield curve represented by a series of annualized individual spot discount rates from 6 months to 99 years. EachUnder the AA-AM yield curve, each bond issue used to build this yield curve must be non-callable, and have an average rating of AA when averaging available Moody's Investor Services, Standard & Poor's and Fitch ratings. The AON Canada yield curve is based on high quality corporate bonds. Under the AON Canada yield curve, expected plan cash flows were discounted using the the yield curve, and then a single rate is determined which produces an equivalent present value.
NRG employs a total return investment approach, whereby a mix of equities and fixed income investments are used to maximize the long-term return of plan assets for a prudent level of risk. Risk tolerance is established through careful consideration of plan liabilities, plan funded status, and corporate financial condition. The Investment Committee reviews the asset mix periodically and as the plan assets increase in future years, the Investment Committee may examine other asset classes such as real estate or private equity. NRG employs a building block approach to determining the long-term rate of return assumption for plan assets, with proper consideration given to diversification and rebalancing. Historical markets are studied and long-term historical relationships between equities and fixed income are preserved, consistent with the widely accepted capital market principle that assets with higher volatility generate a greater return over the long run. Current factors such as inflation and interest rates are evaluated before long-term capital market assumptions are determined. Peer data and historical returns are reviewed to check for reasonableness and appropriateness.
In 2016, NRG changed the approach utilized to estimate the service cost and interest cost components of net periodic benefit cost for pension and postretirement benefit plans. Historically, the Company estimated these components by using a single weighted average discount rate derived from the yield curve used to measure the benefit obligation. The Company has elected to use a spot rate approach in the estimation of the components of benefit cost by applying specific spot rates along the yield curve to the relevant projected cash flows, as this provides a better estimate of service and interest costs. This election is considered a change in estimate and, accordingly, has been accounted for starting in 2016. This change does not affect the measurement of NRG's total benefit obligation.

The target allocations of NRG's pension plan assets were as follows for the year ended December 31, 2018:
2021:
U.S. equity2217 %
Non-U.S. equity1413 %
Non-core assets1915 %
U.S. fixed incomeFixed Income4555 %
Plan assets are currently invested in a diversified blend of equity and fixed-income investments. Furthermore, equity investments are diversified across U.S., non-U.S., global, and emerging market equities, as well as among growth, value, small and large capitalization stocks.

Investment risk and performance are monitored on an ongoing basis through quarterly portfolio reviews of each asset fund class to a related performance benchmark, if applicable, and annual pension liability measurements. Performance benchmarks are composed of the following indices:
Asset ClassIndex
U.S. equitiesDow Jones U.S. Total Stock Market Index
Non-U.S. equitiesMSCI All Country World Ex-U.S. IMI Index
Non-core assets(a)
Various (per underlying asset class)
Fixed income securitiesBarclays CapitalShort, Intermediate and Long Term Government/Credit Index & Credits/Barclays Strips 20+ Index and FTSE Canada Universe Bond Index
(a)Non-Core Assets are defined as diversifying asset classes approved by the Investment Committee that are intended to enhance returns and/or reduce volatility of the U.S. and non-U.S. equities. Asset classes considered Non-Core include, but may not be limited to: Emerging Market Equity, Emerging Market Debt, Non-US Developed Market Small Cap, High Yield Fixed Income, Real Estate, Bank Loans, Global Infrastructure and other Alternatives.
(a)Non-Core Assets are defined as diversifying asset classes approved by the Investment Committee that are intended to enhance returns and/or reduce volatility of the U.S. and non-U.S. equities. Asset classes considered Non-Core include, but may not be limited to: Emerging Market Equity, Emerging Market Debt, Non-US Developed Market Small Cap, High Yield Fixed Income, Real Estate, Bank Loans, Global Infrastructure and other Alternatives.

NRG's expected future benefit payments for each of the next five years, and in the aggregate for the five years thereafter, are as follows:
   Other Postretirement Benefit
 
Pension
Benefit Payments
 Benefit Payments Medicare Prescription Drug Reimbursements
 (In millions)
2019$72
 $7
 $
202076
 7
 
202179
 7
 
202282
 6
 
202385
 6
 
2024-2028418
 26
 1
Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plans. The impact of a one-percentage-point change in assumed health care cost trend rates is immaterial on total service and interest costs components but would have the following effect:
  Other Postretirement Benefit
 (In millions)
Pension
Benefit Payments
Benefit PaymentsMedicare Prescription Drug Reimbursements
2022$96 $$— 
202394 — 
202491 — 
202587 — 
202686 — 
2027-2031396 26 
139

 
1-Percentage-
Point Increase
 
1-Percentage-
Point Decrease
 (In millions)
Effect on postretirement benefit obligation5
 (4)

STP Defined Benefit Plans
NRG has a 44% undivided ownership interest in STP, as discussed further in Note 26, 28, Jointly Owned Plants. STPNOC, which operates and maintains STP, provides its employees a defined benefit pension plan, as well as postretirement health and welfare benefits. Although NRG does not sponsor the STP plan, it reimburses STPNOC for 44% of the contributions made towards its retirement plan obligations.
During 2019, STPNOC announced that the defined benefit pension plan would be frozen. As a result, during 2019, NRG recognized a gain of $8 million related to the curtailment of benefits and an increase of $32 million to the pension liability was recorded to other comprehensive income. The Company measures the fair value of its pension assets in accordance with ASC 820, Fair Value Measurements and Disclosures, or ASC 820. As of December 31, 2021, the STPNOC defined benefit pension plan was frozen to all employees.
For the years ended December 31, 20182021 and December 31, 2017,2020, NRG reimbursed STPNOC $13$17 million and $8 million, respectively, for its contribution to the plans. In 2019,2022, NRG expects to reimburse STPNOC $18$13 million for its contribution to the plans.plan.
The Company has recognized the following in its statement of financial position, statement of operations and accumulated OCI related to its 44% interest in STP:
As of December 31,
As of December 31, Pension BenefitsOther Postretirement Benefits
Pension Benefits Other Postretirement Benefits
2018 2017 2018 2017
(In millions)
(In millions)(In millions)2021202020212020
Funded status — STPNOC benefit plans$(78) $(76) $(19) $(24)Funded status — STPNOC benefit plans$(50)$(99)$(18)$(20)
Net periodic benefit cost/(credit)8
 8
 (7) (3)Net periodic benefit cost/(credit)17 (4)(4)
Other changes in plan assets and benefit obligations recognized in other comprehensive (loss)/income(7) (6) 2
 5
Other changes in plan assets and benefit obligations recognized in other comprehensive incomeOther changes in plan assets and benefit obligations recognized in other comprehensive income(51)22 
Defined Contribution Plans
NRG's employees are also eligible to participate in defined contribution 401(k) plans.
The Company's contributions to these plans were as follows:
 Year Ended December 31,
(In millions)202120202019
Company contributions to defined contribution plans$25 $22 $22 

140
 Year Ended December 31,
 2018 2017 2016
 (In millions)
Company contributions to defined contribution plans$28
 $56
 $55



Note 1416 — Capital Structure
For the period from December 31, 2015 to December 31, 2018, to December 31, 2021, the Company had 10,000,000 shares of preferred stock authorized and 500,000,000 shares of common stock authorized. The following table reflects the changes in NRG's common shares issued and outstanding for each period presented:
Common Shares
Common IssuedTreasuryOutstanding
Issued Treasury Outstanding
Balance as of December 31, 2015416,939,950
 (102,749,908) 314,190,042
Shares issued under ESPP
 609,094
 609,094
Shares issued under LTIPs643,875
 
 643,875
Balance as of December 31, 2016417,583,825
 (102,140,814) 315,443,011
Shares issued under ESPP
 560,769
 560,769
Shares issued under LTIPs739,309
 
 739,309
Balance as of December 31, 2017418,323,134
 (101,580,045) 316,743,089
Balance as of December 31, 2018Balance as of December 31, 2018420,288,886 (136,638,847)283,650,039 
Shares issued under ESPP
 175,862
 175,862
Shares issued under ESPP— 46,128 46,128 
Shares issued under LTIPs1,965,752
 
 1,965,752
Shares issued under LTIPs1,601,904 — 1,601,904 
Share repurchases
 (35,234,664) (35,234,664)Share repurchases— (36,301,882)(36,301,882)
Balance as of December 31, 2018420,288,886
 (136,638,847) 283,650,039
Balance as of December 31, 2019Balance as of December 31, 2019421,890,790 (172,894,601)248,996,189 
Shares issued under ESPPShares issued under ESPP— 131,469 131,469 
Shares issued under LTIPsShares issued under LTIPs1,167,058 — 1,167,058 
Share repurchasesShare repurchases— (6,062,783)(6,062,783)
Balance as of December 31, 2020Balance as of December 31, 2020423,057,848 (178,825,915)244,231,933 
Shares issued under ESPPShares issued under ESPP— 117,392 117,392 
Shares issued under LTIPsShares issued under LTIPs489,326 — 489,326 
Share repurchasesShare repurchases— (1,084,752)(1,084,752)
Balance as of December 31, 2021Balance as of December 31, 2021423,547,174 (179,793,275)243,753,899 
Shares issued under LTIPsShares issued under LTIPs288,491 — 288,491 
Share repurchasesShare repurchases— (1,889,151)(1,889,151)
Balance as of February 24, 2022Balance as of February 24, 2022423,835,665 (181,682,426)242,153,239 
Common Stock
The following table summarizes NRG'sAs of December 31, 2021, NRG had 14,372,743 shares of common stock reserved for the maximum number of shares potentially issuable based on the conversion and redemption features of the long-term incentive plans as of December 31, 2018:plans.
Equity Instrument
Common Stock
Reserve Balance
Long-term incentive plans17,631,031
Common stock dividendsThe Company declared and paid $0.325, $0.30 and $0.03 quarterly dividend per common share, or $1.30, $1.20 and $0.12 per share on an annualized basis for 2021, 2020 and 2019 respectively.
In the first quarter of 20162020, NRG increased the Company paid quarterlyannual dividend of $0.145to $1.20 from $0.12 per share, or $0.58 per share on an annualized basis. In 2016, as part of the 2016 Capital Allocation Program, the Company decreased its annual common stock dividend by 79% to $0.12 per share. The Company paid $0.030 dividend per common share for the second quarter of 2016 througha long-term capital allocation policy adopted in the fourth quarter of 2018.2019, that targets allocating 50% of cash available for allocation generated each year to growth investments and 50% to be returned to shareholders. The return of capital to shareholders is expected to be completed through the increased dividend supplemented by share repurchases. The long-term capital allocation policy targets an annual dividend growth rate of 7-9% per share in years subsequent to 2020. In 2021 and 2022, NRG increased the annual dividend to $1.30 and $1.40 per share, representing an 8% increase each year. The Company's common stock dividends are subject to available capital, market conditions, and compliance with associated laws, regulations and other contractual obligations.
On January 23, 2019,21, 2022, NRG declared a quarterly dividend on the Company's common stock of $0.03$0.35 per share, or $0.12$1.40 per share on an annualized basis, payable on February 15, 2019,2022, to stockholders of record as of February 1, 20192022.
Employee Stock Purchase Plan — UnderIn March 2019, the Company reopened participation in the ESPP, which allows eligible employees mayto elect to withhold up to between 1% and 10% of their eligible compensation to purchase shares of NRG common stock at the lesser of 85%95% of its fair market value on the offering date or 85%95% of the fair market value on the exercise date. An offering date occurswill occur each JanuaryApril 1 and JulyOctober 1. An exercise date occurswill occur each JuneSeptember 30 and DecemberMarch 31. Beginning January 2018, NRG suspended the ESPP. As of December 31, 2018,2021, there remained 2,931,1882,636,199 shares of treasury stock reserved for issuance under the ESPP.

Share Repurchases — In 2018, the Company's board of directors authorized the Company to repurchase $1.5 billion of its common stock. The Company executed $1.25 billion of these share repurchases in 2018, with the remaining $0.25 billion completed in the first quarter of 2019. In addition,2019, the Company's board of directors authorized in February 2019the Company to repurchase an additional $1.0$1.25 billion of its common stock. The Company executed $1.194 billion of these share repurchaserepurchases in 2019 and completed the remaining $56 million under the 2019 authorization by February 27, 2020. The remaining repurchases in 2020 and were made under the long-term capital allocation policy discussed above. On December 6, 2021 the Company announced that the Board of Directors has authorized $1 billion for share repurchases, as part of NRG’s Capital Allocation Program. The program to be executedbegan in 2019.2021 and will continue throughout 2022.
141


The following table summarizes the shares repurchased under the 2018 program, including shares repurchased under two completed accelerated repurchase agreements:
 Total number of shares purchasedAverage price paid per shareAmounts paid for shares purchased (in millions)
Open market repurchases11,097,631
 $396
Shares repurchased under May 24, 2018 Accelerated Repurchase Agreement10,829,903
 354
Shares repurchased under September 5, 2018 Accelerated Repurchase Agreement13,307,130
 500
Total Share Repurchases as of December 31, 201835,234,664
 1,250
Additional open market repurchases through February 28, 20196,153,415
 250
Total Share Repurchases as of February 28, 201941,388,079
$36.24
$1,500


Preferred Stock
2.822% Redeemable Preferred Stock
Preferred Stock
On May 24, 2016, NRG entered an agreement with Credit Suisse Group to     repurchase 100% of the outstanding shares of its $345 million 2.822% preferred stock. On June 13, 2016, the Company completed the repurchase from Credit Suisse of 100% of the outstanding shares at a price of $226 million. The transaction resulted in a gain on redemption of $78 million, measured as the difference between the fair value of the cash consideration paid upon redemption of $226 million and the carrying value of the preferred stock at the time of the redemption of $304 million. This amount was reflected in net loss available to NRG common stockholders in the calculation of earnings per share for the year ended December 31, 2016.
The following table reflects the changes in the Company's redeemable preferred stock balance forrepurchases made during the years ended December 31, 2018, 2017,2019, 2020 and 2016:2021 as well as through February 24, 2022:
Total number of shares and share equivalents purchasedAverage price paid per share and share equivalentAmounts paid for shares and share equivalents purchased (in millions)
2019 repurchases:
Repurchases under February 28, 2019 Accelerated Share Repurchase Agreement9,438,671 400 
Other repurchases(a)
26,863,211 1,008 
Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances(b)
936,928 36 
Total Share Repurchases during 201937,238,810 $38.79 $1,444 
2020 repurchases:
Repurchases6,062,783 197 
Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances(b)
711,248 27 
Total Share Repurchases during 20206,774,031 $33.05 $224 
2021 repurchases:
Repurchases(a)
1,084,752 44 
Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances(b)
249,013 
Total Share Repurchases during 20211,333,765 $40.22 $53 
2022 repurchases:
Repurchases made subsequent to December 31, 20211,889,151 76 
Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances(b)
130,674 
Total share repurchases January 1, 2021 through February 24, 20222,019,825 $40.26 $82 
(a)Includes $5 million and $4 million accrued as of December 31, 2021 and December 31,2019, respectively
(b)NRG elected to pay cash for tax withholding on equity awards instead of issuing actual shares to management. The average price per equivalent shares withheld was $43.08, $37.50, $38.23 and $38.78 in 2022, 2021, 2020 and 2019, respectively. See Note 21, Stock-Based Compensation, for further discussion of the equity awards

142
 (In millions)
Balance as of December 31, 2015$302
Accretion to redemption value2
Repurchase of 2.822% redeemable preferred stock(226)
Gain on redemption of 2.822% redeemable preferred stock(78)
Balance as of December 31, 2016$
Balance as of December 31, 2017$
Balance as of December 31, 2018$





Note 1517 — Investments Accounted for by the Equity Method and Variable Interest Entities
Entities that are not Consolidated
NRG accounts for the Company's significant investments using the equity method of accounting. NRG's carrying value of equity investments can be impacted by a number of elements including impairments, unrealized gains and losses on derivatives and movements in foreign currency exchange rates.
The following table summarizes NRG's equity method investments as of December 31, 2018:2021:
(In millions, except percentages)
Name:Economic
Interest
Investment Balance(a)
Gladstone37.5 %$127 
Ivanpah Master Holdings, LLC54.5 %
Watson Cogeneration Company49.0 %14 
Midway-Sunset Cogeneration Company50.0 %12 
Total equity investments in affiliates$157 
Petra Nova Parish Holdings, LLC(b)
50.0 %$(16)
Name
Economic
Interest
 Investment Balance
   (In millions)
Agua Caliente35.0% 200
Gladstone37.5% 140
Ivanpah Master Holdings, LLC54.5% 37
Watson Cogeneration Company49.0% 17
Midway-Sunset Cogeneration Company50.0% 12
Other(a)
Various
 6
Total equity investments in affiliates  $412
(a)As of December 31, 2021, the carrying value of NRG's equity method investment was $116 million lower than the underlying net assets of the investees. The basis difference is being amortized into net income over the remaining estimated useful lives of the underlying net assets. The basis difference is primarily due to impairments booked on Petra Nova, but not booked at the project level, as well as differences related to the deconsolidations of Ivanpah and the treatment of certain deferred tax assets

(a)(b)The Company continues to account for Petra Nova under the equity method due to the fact that NRG still has a financial guaranty. As a result, the Company continues to record losses for a negative equity method investment. As of December 31, 2021, NRG recorded $16 million to other non-current liabilities. Refer to Note 9, 11, Asset Impairments, for discussion of NRG's investment in Petra Nova Parish Holdings, LLC


 As of December 31,
(In millions)20212020
Undistributed earnings from equity investments$33 $30 
 As of December 31,
 2018 2017
 (In millions)
Undistributed earnings from equity investments$34
 $38

PG&E Bankruptcy - The Company's Agua Caliente and Ivanpah projects are party to PPAs with PG&E. Both projects have project financing with the U.S. DOE. On January 29, 2019, PG&E Corp. and subsidiary utility PG&E filed for Chapter 11 bankruptcy protection. As part of their filing, PG&E asked the Bankruptcy Court to confirm "exclusive jurisdiction" over their "rights to reject" PPAs or other contracts regulated by FERC. As a result of the bankruptcy filing, the Agua Caliente and Ivanpah projects have issued notices of events of default under their respective loan agreements. The Company is working with its partners on the projects and the loan counterparties, however, given the uncertainty involved in bankruptcy proceedings, it is uncertain whether, and to what extent, PG&E's bankruptcy may in the future impact the PPAs and have any resulting impact on the Agua Caliente and Ivanpah projects. NRG's maximum exposure to loss is limited to its equity investment, which was $200 million for Agua Caliente and $37 million for Ivanpah. See Note 11, Debt and Capital Leases for further discussion on Agua Caliente.
Variable Interest Entities
NRG accounts for its interests in certain entities that are considered VIEs under ASC 810, Consolidation, for which NRG is not the primary beneficiary, under the equity method.
Through its consolidated subsidiary, NRG Solar Ivanpah LLC, NRG owns a 54.5% interest in Ivanpah Master Holdings, LLC, or Ivanpah, the owner of three3 solar electric generating projects located in the Mojave Desert with a total capacity of 393 MW. NRG considers this investment a VIE under ASC 810 and NRG is not considered the primary beneficiary. The Company accounts for its interest under the equity method of accounting.
The Ivanpah solar electric generating projects were funded in large part by loans guaranteed by the U.S. DOE and equity from the projects' partners. During the first quarter of 2018, all interested parties sought a restructuring of Ivanpah's debt in order to avoid a potential event of default with respect to the loans in connection with several recent events. Ensuing negotiations culminated in a settlement during the second quarter of 2018 between the parties which resulted in certain transactions, including the release of reserves totaling $95 million to fund equity distributions to the partners, which reduced the equity at risk, and the prepayment of certain of the debt balance outstanding, and the amendment of certain of Ivanpah's governing documents. The equity distributions and prepayment of debt were funded by the agreed upon release of reserve funds. These events were considered to be a reconsideration event in accordance with ASC 810. As a result, NRG determined that it is not the primary beneficiary and deconsolidated Ivanpah. NRG recognized a loss of $22 million on the deconsolidation and subsequent recognition of Ivanpah as an equity method investment. The deconsolidation of Ivanpah reduced the Company's assets by approximately $1.3 billion, which was primarily property, plant and equipment, and reduced the Company's liabilities by $1.2 billion, which was primarily long-term debt.

Other Equity Investments
Gladstone — Through a joint venture, NRG owns a 37.5% interest in Gladstone, a 1,613 MW coal-fueled power generation facility in Queensland, Australia. The power generation facility is managed by the joint venture participants and the facility is operated by NRG. Operating expenses incurred in connection with the operation of the facility are funded by each of the participants in proportion to their ownership interests. Coal is sourced from local mines in Queensland. NRG and the joint venture participants receive their respective share of revenues directly from the off takers in proportion to the ownership interests in the joint venture. Power generated by the facility is primarily sold to an adjacent aluminum smelter, with excess power sold to the Queensland Government-owned utility under long-term supply contracts. NRG's investment in Gladstone was $140$127 million as of December 31, 2018.2021.
Entities that are Consolidated
The Company has a controlling financial interest in certain entities which havethat has been identified as VIEsa VIE under ASC 810. These arrangements are primarily810 in NRG Receivables LLC, which has entered into financing transactions related to tax equity arrangements entered into with third-parties in order to finance the cost of solar energy systems under operating leases eligible for certain tax creditsReceivables Facility as further described in Note 2, Summary of Significant Accounting Policies.13, Long-term Debt and Finance Leases.
143


The summarized financial information for the Company's consolidated VIEs consisted of the following:
(In millions)December 31, 2021December 31, 2020
Accounts receivable$939 $647 
Other current assets— 
Total assets939 649 
Current liabilities78 78 
Net assets$861 $571 

(In millions)December 31, 2018 December 31, 2017
Current assets$3
 $6
Net property, plant and equipment76
 80
Other long-term assets28
 36
Total assets107

122
Current liabilities2
 3
Long-term debt29
 30
Other long-term liabilities7
 7
Total liabilities38

40
Redeemable noncontrolling interests19
 19
Net assets less noncontrolling interests$50

$63

Note 1618 — Earnings/(Loss)Income Per Share
Basic income/(loss)income per common share is computed by dividing net income/(loss) less accumulated preferred stock dividendsincome by the weighted average number of common shares outstanding. Shares issued and treasury shares repurchased during the year are weighted for the portion of the year that they were outstanding. Diluted income/(loss)income per share is computed in a manner consistent with that of basic income/(loss)income per share, while giving effect to all potentially dilutive common shares that were outstanding during the period.
Dilutive effect for equity compensation and other equity instruments — The outstanding non-qualifiedrelative performance stock options,units, non-vested restricted stock units, and market stock units and non-qualified stock options are not considered outstanding for purposes of computing basic income/(loss)income per share. However, these instruments are included in the denominator for purposes of computing diluted income/(loss)income per share under the treasury stock method. The if-converted method was used to determineAs of December 31, 2021, 2020 and 2019, the dilutive effect of the 2048 Convertible Senior Notes were convertible, under certain circumstances, into the Company’s common stock, cash or combination thereof (at NRG's option). There was no dilutive effect for the year ended December 31, 2018. During 2016,Convertible Senior Notes due to the Company’s expectation, as of such dates, to settle the liability in cash. On February 22, 2022, the Company repurchased 100%irrevocably elected to eliminate the right to settle conversions only in shares of the outstanding sharesCompany's common stock, such that any conversion after such date will be settled in cash or a combination of its 2.822%% preferredcash and the Company's common stock.


The reconciliation of NRG's basic income/(loss)income per share to diluted income/(loss)income per share is shown in the following table:
 Year Ended December 31,
 (In millions, except per share amounts)202120202019
Basic income per share attributable to NRG Energy, Inc;   
Net income attributable to NRG Energy, Inc. common stockholders$2,187 $510 $4,438 
Weighted average number of common shares outstanding-basic245 245 262 
Income per weighted average common share — basic$8.93 $2.08 $16.94 
Diluted income per share attributable to NRG Energy, Inc;
Net income attributable to NRG Energy, Inc. common stockholders$2,187 $510 $4,438 
Weighted average number of common shares outstanding-basic245 245 262 
  Incremental shares attributable to the issuance of equity compensation (treasury stock method)— 
Weighted average number of common shares outstanding-diluted245 246 264 
Income per weighted average common share — diluted$8.93 $2.07 $16.81 
 Year Ended December 31,
 2018 2017 2016
 (In millions, except per share amounts)
Basic income/(loss) per share attributable to NRG common stockholders     
Net income/(loss) attributable to NRG Energy, Inc.$268
 $(2,153) $(774)
Dividends for preferred shares
 
 5
Gain on redemption of 2.822% redeemable perpetual preferred shares
 
 (78)
Income/(Loss) Available to Common Stockholders$268
 $(2,153)
$(701)
Weighted average number of common shares outstanding-basic304

317

316
Income/(Loss) per weighted average common share — basic
$0.88
 $(6.79) $(2.22)
Diluted income/(loss) per share attributable to NRG common stockholders     
Weighted average number of common shares outstanding-basic304
 317
 316
  Incremental shares attributable to the issuance of equity compensation (treasury stock method)4
 
 
Total dilutive shares308
 317
 316
Income/(Loss) per weighted average common share — diluted$0.87
 $(6.79) $(2.22)
The following table summarizes NRG'sAs of December 31, 2021, 2020 and 2019 the Company had an insignificant number of outstanding equity instruments that are anti-dilutive and were not included in the computation of the Company'sCompany’s diluted income/(loss)income per share:share.

 Year Ended December 31,
 2018 2017 2016
 (In millions of shares)
Equity compensation plans
 5
 5
2048 Convertible Senior Notes7
 
 
Total7
 5
 5

Note 1719 — Segment Reporting
The Company'sCompany’s segment structure reflects how management currently makes financial decisions and allocates resources. The Company'sCompany manages its operations based on the combined results of the retail and wholesale generation businesses are segregated into the Generation, Retail and corporate segments. Generation includes all power plant activities, domestic and international, as well as renewables. Retail includes Mass customers and Business Solutions, which includes C&I customers and other distributed and reliability products. Intersegment sales are accounted for at market.
As described in Note 3, Acquisitions, Discontinued Operations and Dispositions, the Company has determined that the South Central Portfolio, NRG Yield Inc. and its Renewables Platform, Carlsbad, and GenOn all qualified for treatment as discontinued operations. The financial information for all historical periods has been recast to reflect the presentation of discontinued operations within the corporate segment.with a geographical focus.
NRG's chief operating decision maker, its chief executive officer, evaluates the performance of its segments based on operational measures including adjusted earnings before interest, taxes, depreciation and amortization, or Adjusted EBITDA, free cash flow and capital for allocation, as well as net income/(loss) and net income/(loss) attributable to NRG Energy, Inc.
DuringThe acquired operations of Direct Energy are integrated into the year ended December 31, 2018,existing NRG segment structure. Domestic customer and market operations are combined into the corresponding geographical segments of Texas, East and West/Services/Other. The West/Services/Other segment includes activity related to the Canadian operations as well as the services businesses.
144


In February 2019, the Company had one customer incompleted the Generation segment that comprised 11%sale and deconsolidation of the Company's consolidated revenues. During the years ended December 31, 2017South Central Portfolio and 2016, theCarlsbad. Refer to Note 4, Acquisitions, Discontinued Operations and Dispositions, for further discussion.
The Company had no customer that comprised more than 10% of the Company's consolidated revenues.revenues during the years ended December 31, 2021, 2020 and 2019.

Intersegment sales are accounted for at market.
For the Year Ended December 31, 2021
(In millions)TexasEastWest/Services/Other
Corporate(a)
Eliminations
Total
Operating revenues(a)
$10,293 $13,033 $3,653 $— $10 $26,989 
Operating expenses8,692 10,257 3,466 141 10 22,566 
Depreciation and amortization331 338 88 28 — 785 
Impairment losses— 535 — — 544 
Total operating cost and expenses9,023 11,130 3,563 169 10 23,895 
Gain on sale of assets19 — 17 211 — 247 
Operating income1,289 1,903 107 42 — 3,341 
Equity in (losses)/earnings of unconsolidated affiliates(3)— 20 — — 17 
Other income, net59 (14)63 
Loss on debt extinguishment— — — (77)— (77)
Interest expense(1)(1)(28)(469)14 (485)
Income/(loss) from continuing operations before income taxes1,293 1,909 102 (445)— 2,859 
Income tax expense— — 19 653 — 672 
Net income/(loss) attributable to NRG Energy, Inc.$1,293 $1,909 $83 $(1,098)$— $2,187 
Balance sheet
Equity investments in affiliates$— $— $157 $— $— $157 
Capital expenditures153 50 21 45 — 269 
Goodwill751 853 191 — — 1,795 
Total assets$12,265 $13,673 $4,816 $19,081 $(26,653)$23,182 
(a) Inter-segment sales and inter-segment net derivative gains and losses included in operating revenues$$(18)$$— $— $(10)
 For the Year Ended December 31, 2020
(In millions)TexasEastWest/Services/Other
Corporate(a)
Eliminations
Total
Operating revenues(a)
$6,309 $2,258 $530 $— $(4)$9,093 
Operating expenses5,249 1,758 421 57 (4)7,481 
Depreciation and amortization227 138 36 34 — 435 
Impairment losses14 — 61 — — 75 
Total operating cost and expenses5,490 1,896 518 91 (4)7,991 
(Loss)/gain on sale of assets— — (2)— 
Operating income/(loss)819 362 10 (86)— 1,105 
Equity in (losses)/earnings of unconsolidated affiliates(12)— 29 — — 17 
Impairment losses on investments(18)— — — — (18)
Other income, net11 41 — 67 
Loss on debt extinguishment— (4)(5)— — (9)
Interest expense— (14)(3)(384)— (401)
Income/(loss) from continuing operations before income taxes800 351 39 (429)— 761 
Income tax (benefit)/expense— (1)250 — 251 
Net income attributable to NRG Energy, Inc.$800 $352 $37 $(679)$— $510 
Balance sheet
Equity investments in affiliates$(13)$— $359 $— $— $346 
Capital expenditures130 45 30 25 — 230 
Goodwill(b)
324 240 15 — — 579 
Total assets$7,641 $1,790 $1,679 $11,152 $(7,360)$14,902 
(a) Inter-segment sales and inter-segment net derivative gains and losses included in operating revenues$$(6)$$— $— $
(b) Goodwill was allocated based on the regions in which the business operates and are expected to benefit using a relative fair value approach
 For the Year Ended December 31, 2019
(In millions)TexasEastWest/Services/Other
Corporate(a)
EliminationsTotal
Operating revenues(a)
$7,069 $2,262 $497 $— $(7)$9,821 
Operating expenses5,821 1,843 453 50 (7)8,160 
Depreciation and amortization188 117 37 31 — 373 
Impairment losses— — — 
Total operating cost and expenses6,010 1,960 494 81 (7)8,538 
Gain on sale of assets— — — 
Operating income/(loss)1,059 303 (75)— 1,290 
Equity in (losses)/earnings of unconsolidated affiliates(4)— — — 
Impairment losses on investments(103)— — (5)— (108)
Other income, net20 10 30 — 66 
Loss on debt extinguishment— — (3)(48)— (51)
Interest expense— (18)(10)(385)— (413)
Income/(loss) from continuing operations before income taxes972 291 (483)— 786 
Income tax expense/(benefit)— (3,337)— (3,334)
Net income from continuing operations972 289 2,854 — 4,120 
Gain from discontinued operations, net of income tax— — — 321 — 321 
Net Income972 289 3,175 — 4,441 
Less: Net income attributable to noncontrolling interests and redeemable noncontrolling interests— — — — 
Net income attributable to NRG Energy, Inc.$972 $289 $$3,175 $— $4,438 
(a) Inter-segment sales and inter-segment net derivative gains and losses included in operating revenues$$$(2)$— $— $

 For the Year Ended December 31, 2018
 
Retail (a)

Generation(a)

Corporate(a)

Eliminations 

Total
 (In millions)
Operating revenues(a)
$7,103

$3,432

$11

$(1,068)
$9,478
Operating expenses5,919

3,019

125

(1,066)
7,997
Depreciation and amortization116

272

33



421
Impairment losses1

98





99
Development costs1

9

2

(1)
11
Total operating cost and expenses6,037

3,398

160

(1,067)
8,528
Gain on sale of assets

2

30



32
Operating income/(loss)1,066

36

(119)
(1)
982
Equity in earnings of unconsolidated affiliates

10

4

(5)
9
Impairment losses on investments

(15)




(15)
Other income/(expenses), net

20

(1)
(1)
18
Loss on debt extinguishment



(44)


(44)
Interest expense(3)
(58)
(422)


(483)
Income/(loss) from continuing operations before income taxes1,063

(7)
(582)
(7)
467
Income tax expense1



6



7
Net income/(loss) from continuing operations1,062

(7)
(588)
(7)
460
Loss from discontinued operations, net of income tax



(192)


(192)
Net Income/(loss)1,062

(7)
(780)
(7)
268
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests1

9

(5)
(5)

Net income/(loss) attributable to NRG Energy, Inc.$1,061

$(16)
$(775)
$(2)
$268










Balance sheet

 
 



Equity investments in affiliates$

$412

$

$

$412
Capital expenditures90

267

31



388
Goodwill408

165





573
Total assets$3,291

$5,735

$7,003

$(5,401)
$10,628
145

(a) Inter-segment sales and inter-segment net derivative gains and losses included in operating revenues$9
 $1,085
 $(26) $
 $1,068








 For the Year Ended December 31, 2017
 
Retail (a)

Generation(a)

Corporate(a)

Eliminations
Total
 (In millions)
Operating revenues(a)
$6,369

$3,615

$13

$(923)
$9,074
Operating expenses5,377

3,071

243

(925)
7,766
Depreciation and amortization110

454

35

(3)
596
Impairment losses8

1,526





1,534
Development costs3

13

6



22
Total operating cost and expenses5,498

5,064

284

(928)
9,918
   Other income - affiliate



87



87
  Gain on sale of assets

15

1



16
Operating income/(loss)871

(1,434)
(183)
5

(741)
Equity in (losses)/earnings of unconsolidated affiliates

(14)
5

(5)
(14)
Impairment losses on investments

(75)
(4)


(79)
Other income, net

23

28



51
Loss on debt extinguishment



(49)


(49)
Interest expense(6)
(100)
(451)


(557)
Income/(loss) from continuing operations before income taxes865

(1,600)
(654)


(1,389)
Income tax (benefit)/expense(8)
2

(38)


(44)
Net income/(loss) from continuing operations873

(1,602)
(616)


(1,345)
Loss from discontinued operations, net of income tax



(992)


(992)
Net Income/(loss)873

(1,602)
(1,608)


(2,337)
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests1

4

(189)


(184)
Net income/(loss) attributable to NRG Energy, Inc.$872

$(1,606)
$(1,419)
$

$(2,153)











Balance sheet

 
 
 
 
Equity investments in affiliates$

$179

$95

$(92)
$182
Capital expenditures82

148

20



250
Goodwill374

165





539
Total assets$2,655

$9,090

$17,402

$(5,792)
$23,355
(a) Inter-segment sales and inter-segment net derivative gains and losses included in operating revenues$4
 $877
 $42
 $
 $923





 For the Year Ended December 31, 2016
 Retail 
Generation(a)
 
Corporate(a)
 Eliminations Total
 (In millions)
Operating revenues(a)
$6,330
 $3,633
 $74
 $(1,122) $8,915
Operating expenses5,162
 3,322
 353
 (1,129) 7,708
Depreciation and amortization114
 593
 52
 (3) 756
Impairment losses1
 452
 30
 
 483
Development costs4
 15
 29
 
 48
Total operating costs and expenses5,281
 4,382
 464
 (1,132) 8,995
Other income - affiliate
 
 193
 
 193
Loss on sale of assets(1) 
 (79) 
 (80)
Operating income/(loss)1,048
 (749) (276) 10
 33
Equity in (losses)/earnings of unconsolidated affiliates
 (63) 45
 
 (18)
Impairment losses on investments
 (248) (20) 
 (268)
Other (expense)/income, net(6) 22
 33
 (2) 47
Loss on debt extinguishment
 
 (142) 
 (142)
Interest expense6
 (96) (495) 2
 (583)
Income/(loss) from continuing operations before income taxes1,048
 (1,134) (855) 10
 (931)
Income tax expense/(benefit)1
 (1) 25
 
 25
Net income/(loss) from continuing operations$1,047
 $(1,133) (880) 10
 (956)
Income from discontinued operations, net of income tax
 
 65
 
 65
Net Income/(loss)1,047
 (1,133) (815) 10
 (891)
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests
 (1) (104) (12) (117)
Net income/(loss) attributable to NRG Energy, Inc.$1,047
 $(1,132) $(711) $22
 $(774)
(a) Inter-segment sales and inter-segment net derivative gains and losses included in operating revenues$16
 $999
 $107
 $
 $1,122


Note 1820 — Income Taxes
The income tax provision from continuing operations consisted of the following amounts:
 Year Ended December 31,
(In millions, except effective income tax rate)202120202019
Current   
State$48 $22 $
Foreign
Total — current51 26 
Deferred   
U.S. Federal569 168 (3,000)
State36 60 (340)
Foreign16 (3)— 
Total — deferred621 225 (3,340)
Total income tax expense/(benefit)$672 $251 $(3,334)
Effective income tax rate23.5 %33.0 %(424.2)%
 Year Ended December 31,
 2018 2017 2016
 (In millions, except percentages)
Current     
State$6
 $19
 $6
Total — current6
 19
 6
Deferred     
U.S. Federal(16) (60) 23
State16
 (5) (6)
Foreign1
 2
 2
Total — deferred1
 (63) 19
Total income tax expense/(benefit)$7
 $(44) $25
Effective income tax rate1.5% 3.2% (2.7)%
During the year ended December 31, 2019, NRG released the majority of its valuation allowance against its U.S. federal and state deferred tax assets, resulting in a non-cash benefit to income tax expense of approximately $3.5 billion. In making the determination to release the majority of the valuation allowance as of December 31, 2019, the Company evaluated a number of factors, including its recent history of pre-tax earnings, utilization of $593 million of NOLs in 2019, as well as its forecasted future pre-tax earnings. Based on this evaluation, the Company determined that the majority of its future tax benefits are more-likely-than-not to be realized. Given the Company’s current level of pre-tax earnings and forecasted future pre-tax earnings, the Company expects to generate income before taxes in the U.S. in future periods at a level that would fully utilize its U.S. federal NOL carryforwards and the majority of its state NOL carryforwards prior to their expiration.

On March 27, 2020, the Senate passed the CARES Act to provide emergency relief related to the COVID-19 pandemic. The CARES Act contains federal income tax provisions which, among other things: (i) increases the amount of interest expense that businesses are allowed to deduct by increasing the adjusted taxable income limitation from 30% to 50% for tax years that begin in 2019 and 2020; (ii) permits businesses to carry back to each of the five tax years NOLs arising from tax years beginning after December 31, 2017 and before January 1, 2020; and (iii) temporarily removes the 80% limitation on NOLs until tax years beginning after 2020. The CARES Act provisions did not have a material impact on the tax positions of the Company.
The following representsrepresented the domestic and foreign components of income/(loss)income from continuing operations before income taxes:
 Year Ended December 31,
(In millions)202120202019
U.S. $2,759 $749 $771 
Foreign100 12 15 
Total$2,859 $761 $786 
146


 Year Ended December 31,
 2018 2017 2016
 (In millions)
U.S. $468
 $(1,406) $(942)
Foreign(1) 17
 11
Total$467
 $(1,389) $(931)
A reconciliationReconciliations of the U.S. federal statutory tax rate to NRG's effective tax rate iswere as follows:
 Year Ended December 31,
 2018 2017 2016
 (In millions, except percentages)
Income/(loss) from continuing operations before income taxes$467
 $(1,389) $(931)
Tax at federal statutory tax rate98
 (486) (326)
State taxes18
 19
 
Foreign operations
 2
 10
Permanent differences7
 
 
Tax Act - corporate income tax rate change
 665
 
Valuation allowance due to corporate income tax rate change
 (660) 
Valuation allowance - current period activities(106) 455
 382
Impact of non-taxable equity earnings
 (5) 22
Book goodwill impairment
 30
 
Net interest accrued on uncertain tax positions
 
 1
Production tax credits ("PTC")(7) (8) (7)
Recognition of uncertain tax benefits1
 (5) 2
State rate change including true-up to current period activity
 
 (59)
Alternative minimum tax ("AMT") refundable credit(4) (64) 
Other
 13
 
Income tax expense/(benefit)$7
 $(44) $25
Effective income tax rate1.5% 3.2% (2.7)%

 Year Ended December 31,
(In millions, except effective income tax rate)202120202019
Income from continuing operations before income taxes$2,859 $761 $786 
Tax at federal statutory tax rate600 160 165 
Foreign rate differential(3)— — 
State taxes111 18 13 
Permanent differences(9)
Changes in valuation allowance(29)24 (3,492)
Deferred impact of state tax rate changes(10)12 
Recognition of uncertain tax benefits(10)(10)
Return to provision adjustments36 — 
Other— — (13)
Income tax expense/(benefit)$672 $251 $(3,334)
Effective income tax rate23.5 %33.0 %(424.2)%
For the year ended December 31, 2018,2021, NRG's overall effective income tax rate was differenthigher than the federal statutory tax rate of 21% primarily due to astate tax benefit for the change in valuation allowance, the generation of PTCs from various wind facilities and establishment of the previously sequestered AMT credit receivable,expense partially offset by currenttax benefits from the revaluation of state deferred tax expense.assets, valuation allowance, and settlements of uncertain tax positions.
For the year ended December 31, 2017,2020, NRG's overall effective income tax rate was differenthigher than the federal statutory tax rate of 35%21% primarily due to state tax expense, recorded from the revaluationrecognition of the existing net deferred tax asset and state taxes, partially offset by the change in valuation allowance establishing the AMT crediton NOLs, and the generation of PTCs from various wind facilities. The tax expense recorded for revaluation of the net deferred tax asset is requiredreturn to reflect the reduction in the corporate income tax rate from 35% to 21% in accordance with the Tax Act. provision adjustments.
For the year ended December 31, 2016,2019, NRG's overall effective income tax rate was differentlower than the federal statutory tax rate of 35%21% primarily due to the change intax benefit from the release of the valuation allowance and the impact of non-taxable equity earnings, partially offset by the state tax rate change and the generation of PTCs from various wind facilities.allowance.


147


The temporary differences, which gave rise to the Company's deferred tax assets and liabilities consisted of the following:
 As of December 31,
 2018 2017
 (In millions)
Deferred tax liabilities:   
Emissions allowances$15
 $15
Derivatives, net37
 17
Investment in projects180
 337
Discount/premium on notes
 1
Deferred financing costs21
 2
Other1
 5
Discontinued operations36
 49
Total deferred tax liabilities290
 426
Deferred tax assets:   
Deferred compensation, accrued vacation and other reserves134
 141
Difference between book and tax basis of property554
 611
Goodwill11
 38
Differences between book and tax basis of contracts38
 52
Pension and other postretirement benefits87
 74
Equity compensation9
 10
Bad debt reserve14
 14
U.S. capital loss carryforwards
 1
U.S. Federal net operating loss carryforwards2,241
 596
Foreign net operating loss carryforwards62
 66
State net operating loss carryforwards379
 128
Foreign capital loss carryforwards1
 1
Federal and state tax credit carryforwards381
 368
Federal benefit on state uncertain tax positions6
 7
Intangibles amortization (excluding goodwill)21
 98
Interest disallowance carryforward per §163(j) of the Tax Act102
 
Inventory obsolescence7
 12
Discontinued operations17
 185
Total deferred tax assets4,064
 2,402
Valuation allowance(3,812) (1,855)
Discontinued operations19
 (8)
Total deferred tax assets, net of valuation allowance271
 539
Net deferred tax (liability)/asset$(19) $113
 As of December 31,
(In millions)20212020
Deferred tax assets:  
Deferred compensation, accrued vacation and other reserves$114 $79 
Difference between book and tax basis of property436 357 
Pension and other postretirement benefits65 86 
Equity compensation10 
Bad debt reserve168 16 
Derivatives, net— 11 
U.S. Federal net operating loss carryforwards1,773 2,117 
Foreign net operating loss carryforwards112 102 
State net operating loss carryforwards328 351 
Federal and state tax credit carryforwards384 384 
Federal benefit on state uncertain tax positions
Interest disallowance carryforward per §163(j) of the Tax Act
Inventory obsolescence
Other15 10 
Total deferred tax assets3,420 3,537 
Deferred tax liabilities:
Emissions allowances20 21 
Derivatives591 — 
Goodwill40 29 
Intangibles amortization (excluding goodwill)363 
Equity method investments62 156 
Convertible Debt14 16 
Total deferred tax liabilities1,090 224 
Total deferred tax assets less deferred tax liabilities2,330 3,313 
Valuation allowance(248)(266)
Total net deferred tax assets, net of valuation allowance$2,082 $3,047 
The following table summarizes NRG's net deferred tax position:position as presented in the consolidated balance sheets:
 As of December 31,
 2018 2017
 (In millions)
Deferred tax asset — continuing operations$46
 $6
Deferred tax asset — discontinued operations
 128
Deferred tax liability— continuing operations(65) (21)
Net deferred tax (liability)/asset$(19) $113

 As of December 31,
(In millions)20212020
Deferred tax asset$2,155 $3,066 
Deferred tax liability(73)(19)
Net deferred tax asset$2,082 $3,047 
The primary driverdrivers for the decrease in the net deferred tax asset from $113 million$3.0 billion as of December 31, 20172020 to a net deferred tax liability of $19 million$2.1 billion as of December 31, 2018 is2021 are an increase in mark-to-market book gains and step-up in basis of book intangibles associated with the removalacquisition of NRG Yield, Inc.'s net deferred tax asset upon their sale in 2018. The 2017 beginning deferred balance included $128 million of NRG Yield Inc.'s net deferred tax assets, which were subsequently moved to discontinued operations prior to the sale.Direct Energy.
Deferred tax assets and valuation allowance
Net deferred tax balance — As of December 31, 20182021 and 2017,2020, NRG recorded a net deferred tax asset, excluding valuation allowance, of $3.8$2.3 billion and $2.0$3.3 billion, respectively. The Company believes the federal and certain state net deferred tax assetsoperating losses may not be realizable under a "more likely than not"the more-likely-than-not measurement and as such, a valuation allowance has beenwas recorded to reduce the asset accordingly. The determination is based on the Company's assessment of cumulative and forecasted pretax book earnings and the future reversal of existing taxable temporary differences.
Based on the Company's assessment of positive and negative evidence, including available tax planning strategies, NRG believes that it is more likely than not that a benefit will not be realized on $3.8 billion and $1.9 billion of tax assets as of December 31, 2018, and 2017, respectively, thus a valuation allowance has been recorded. The net deferred tax liability of $19 million2021 as discussed below.
NOL carryforwards — As of December 31, 2018 is predominantly due to a foreign net deferred tax liability of $16 million and a net deferred tax liability for the state of Texas.
NOL carryforwards — At December 31, 2018,2021, the Company had tax effectedtax-effected cumulative domesticU.S. NOLs consisting of carryforwards for federal and state income tax purposes of $2.2$1.8 billion and state of $379 million.$328 million, respectively. The Company estimates it will need to generate future taxable income to fully realize the net federal deferred tax asset before the expiration commencingof certain carryforwards commences in 2031. In addition, NRG has tax-effected cumulative foreign NOL carryforwards of $62$112 million with no expiration date.
148


Valuation allowance — As of December 31, 2018,2021, the Company's tax effectedtax-effected valuation allowance was $3.8 billion,$248 million, consisting of domestic federal net deferred tax assets of approximately $3.3 billion, domestic state net deferred tax assets of $454 million,NOL carryforwards and foreign NOL carryforwards of $62 million and foreign capital loss carryforwards of approximately $1 million. Based uponcarryforwards. The valuation allowance was recorded based on the assessment of cumulative and forecasted pretaxpre-tax book earnings and the future reversal of existing taxable temporary differences, it was determined that a valuation allowance was required to be recorded during the year.differences.
Taxes Receivable and Payable
As of December 31, 2018,2021, NRG recorded a current tax payable of $3 million that represents a tax liability due for state income taxes. NRG has a taxnet federal receivable of $1$16 million, comprised of refunds due from the IRS, a current net state income tax payable of $13 million that is primarily comprised of Texas margin tax, and a current net foreign receivable of $11 million due to filings of Canadian amended returns as well as prepayments of estimated payments and return filings.taxes.
Uncertain tax benefits
NRG has identified uncertain tax benefits whosewith after-tax value is $26of $13 million and $30$15 million as of December 31, 20182021 and 2017,2020, for which NRG has recorded a non-current tax liability of $30$14 million and $33$18 million, respectively. The Company recognizes interest and penalties related to uncertain tax benefits in income tax expense. DuringThe Company recognized an immaterial amount of interest expense for the year ended December 31, 2018, the Company recognized an expense of2021, and $1 million in interest.for the years ended 2020 and 2019. As of December 31, 20182021 and 2017,2020, NRG had cumulative interest and penalties related to these uncertain tax benefits of $4$1 million and $3 million, respectively.
Tax jurisdictions — NRG is subject to examination by taxing authorities for income tax returns filed in the U.S. federal jurisdiction and various state and foreign jurisdictions including operations located in Australia.Australia and Canada.
The Company is no longer subject to U.S. federal income tax examinations for years prior to 2015.2018. With few exceptions, state and localCanadian income tax examinations are no longer open for years before 2010.2013.
The following table reconciles the total amounts ofsummarizes uncertain tax benefits:benefits activity:
 As of December 31,
(In millions)20212020
Balance as of January 1$15 $15 
Increase due to current year positions
Increase due to acquired balance from Direct Energy— 
Settlements, payments and statute closure(15)(3)
Uncertain tax benefits as of December 31$13 $15 

 As of December 31,
 2018 2017
 (In millions)
Balance as of January 1$30
 $34
Increase due to current year positions4
 4
Decrease due to prior year positions
 (8)
Decrease due to settlements and payments(8) 
Uncertain tax benefits as of December 31$26
 $30

Note 1921 — Stock-Based Compensation
NRG Energy, Inc. Long-Term Incentive Plan
On April 27, 2017, the NRG LTIP was amended to increase the number of shares available for issuance by 3,000,000. As of December 31, 20182021 and 2017,2020, a total of 25,000,000 shares of NRG common stock were authorized for issuance under the NRG LTIP. There were 8,564,6118,871,874 and 8,724,5959,385,730 shares of common stock remaining available for grants under the NRG LTIP as of December 31, 20182021 and 2017,2020, respectively. The NRG LTIP is subject to adjustments in the event of reorganization, recapitalization, stock split, reverse stock split, stock dividend, and a combination of shares, merger or similar change in NRG's structure or outstanding shares of common stock.
Upon adoption of the amended NRG LTIP effective April 27, 2017, no shares of NRG common stock remain available for future issuance under the NRG GenOn LTIP. As of December 31, 20182021 and 2017,2020, there were 520,18220,131 and 1,369,88078,903 shares of common stock remaining available for grants under the NRG GenOn LTIP, respectively.
149


Restricted Stock Units
As of December 31, 2021, RSUs granted under the Company's LTIPs typically have three-year graded vesting schedules beginning on the grant date. Fair value of the RSUs granted during 2021 and 2020 is derived from the closing price of NRG common stock on the grant date. The following table summarizes the Company's non-vested RSU awards and changes during the year:
UnitsWeighted Average Grant Date Fair Value per Unit
Non-vested at December 31, 2020519,514 $35.87 
Granted479,415 39.00 
Forfeited(49,816)37.41 
Vested(279,161)34.18 
Non-vested at December 31, 2021669,952 38.69 
The total fair value of RSUs vested during the years ended December 31, 2021, 2020 and 2019 was $12 million, $17 million and $36 million, respectively. The weighted average grant date fair value of RSUs granted during the years ended December 31, 2021, 2020 and 2019 was $39.00, $38.05 and $37.37, respectively.
Deferred Stock Units
DSUs represent the right of a participant to be paid one share of NRG common stock at the end of a deferral period established under the terms of the award. DSUs granted under the Company's LTIPs are fully vested at the date of issuance. Fair value of the DSUs, which is based on the closing price of NRG common stock on the date of grant, is recorded as compensation expense in the period of grant.
The following table summarizes the Company's outstanding DSU awards and changes during the year:
UnitsWeighted Average Grant Date Fair Value per Unit
Outstanding at December 31, 2020342,706 $25.37 
Granted64,512 32.27 
Converted to Common Stock(23,090)30.92 
Outstanding at December 31, 2021384,128 26.11 

The aggregate intrinsic values for DSUs outstanding as of December 31, 2021, 2020 and 2019 were approximately $17 million, $13 million and $13 million, respectively. The aggregate intrinsic values for DSUs converted to common stock for the years ended December 31, 2021, 2020 and 2019 were $1 million, $2 million and $2 million, respectively. The weighted average grant date fair value of DSUs granted during the years ended December 31, 2021, 2020 and 2019 was $32.27, $35.59 and $34.84, respectively.
Performance Stock Units
PSUs entitle the recipient to stock upon vesting. The amount of the award is subject to the Company's achievement of certain performance measures over the vesting period. PSUs include RPSUs and MSUs. As of December 31, 2021, non-vested PSUs consist of RPSUs.
Relative Performance Stock Units — RPSUs are restricted grants where the quantity of shares increases and decreases alongside the Company's Total Shareholder Return, or TSR, relative to the TSR of the Company's current proxy peer group and the total returns of select indexes, or Peer Group(a). Each RPSU represents the potential to receive NRG common stock after the completion of the performance period, typically three years of service from the date of grant. The number of shares of NRG common stock to be paid (if any) as of the vesting date for each RPSU will depend on the Company’s percentile rank within the Peer Group. The number of shares of common stock to be paid as of the vesting date for each RPSU is linearly interpolated for TSR performance between the following points: (i) 0% if ranked below the 25th percentile; (ii) 25% if ranked at the 25th percentile; (iii) 100% if ranked at the 55th percentile (or the 65th percentile if the Company's absolute TSR is less than negative 15%); and (iv) 200% if ranked at the 75th percentile or above. The value of the common stock on the date of grant is based on the closing price of NRG common stock on the date of grant.


(a) For RPSU's granted in 2022 and forward the peer group will consist of the companies that comprise the Standard & Poor’s 500 Index on the first day of the performance period.
150


The following table summarizes the Company's non-vested PSU awards and changes during the year:
UnitsWeighted Average Grant-Date Fair Value per Unit
Non-vested at December 31, 2020793,561 $41.69 
Granted426,768 46.78 
Forfeited(93,031)47.21 
Vested(396,793)35.32 
Non-vested at December 31, 2021730,505 47.40 
The weighted average grant date fair value of PSUs granted during the years ended December 31, 2021, 2020 and 2019, was $46.78, $23.75 and $22.50, respectively.
The fair value of PSUs is estimated on the date of grant using a Monte Carlo simulation model and expensed over the service period, which equals the vesting period. Significant assumptions used in the fair value model with respect to the Company's PSUs are summarized below:
2021(a)
20202019
RPSUsRPSUsRPSUs
Expected volatility34.05 %30.15 %40.72 %
Expected term (in years)333
Risk free rate0.17 %1.58 %2.45 %
(a) Assumptions pertain to the main award granted in January 2021. Additional 60,815 RPSUs were granted in September 2021 with a risk free rate of 0.42% and expected volatility of 37.38%
For the years ended December 31, 2021 and 2020, expected volatility is calculated based on NRG's historical stock price volatility data over the period commensurate with the expected term of the PSU, which equals the vesting period.
Non-QualifiedPerformance Stock OptionsUnits
NRG recognizes compensation costs for NQSOsPSUs entitle the recipient to stock upon vesting. The amount of the award is subject to the Company's achievement of certain performance measures over the requisite service period for the entire award. The maximum contractual term is 10 years for NRG's outstanding NQSOs. No NQSOs were granted in 2018, 2017 or 2016.
The following table summarizes the Company's NQSO activityvesting period. PSUs include RPSUs and changes during the year:
 
Shares(a)
 
Weighted Average
Exercise Price
 Weighted Average Remaining Contractual Term Aggregate Intrinsic Value
   (In years)  (In millions)
Outstanding at December 31, 20171,285,858
 $25.49
 3 $6
Expired(36,866) 43.64
    
Exercised(969,058) 24.93
    
Outstanding at December 31, 2018279,934
 25.04
 2 4
Exercisable at December 31, 2018279,934
 25.04
 2 4
(a)MSUs. As of December 31, 2018, 26,430 NQSOs granted2021, non-vested PSUs consist of RPSUs.
Relative Performance Stock Units — RPSUs are restricted grants where the quantity of shares increases and decreases alongside the Company's Total Shareholder Return, or TSR, relative to employeesthe TSR of GenOn remain outstandingthe Company's current proxy peer group and exercisable
The following table summarizes the total intrinsic valuereturns of options exercised andselect indexes, or Peer Group(a). Each RPSU represents the cash receivedpotential to receive NRG common stock after the completion of the performance period, typically three years of service from the exercisesdate of options:
 Year Ended December 31,
 2018 2017 2016
 (In millions)
Total intrinsic value of options exercised$10
 $1
 $
Cash received from options exercised24
 4
 
There were no options exercised duringgrant. The number of shares of NRG common stock to be paid (if any) as of the year ended December 31, 2016.
Restricted Stock Units
Asvesting date for each RPSU will depend on the Company’s percentile rank within the Peer Group. The number of December 31, 2018, RSUs granted undershares of common stock to be paid as of the vesting date for each RPSU is linearly interpolated for TSR performance between the following points: (i) 0% if ranked below the 25th percentile; (ii) 25% if ranked at the 25th percentile; (iii) 100% if ranked at the 55th percentile (or the 65th percentile if the Company's LTIPs typically have three-year graded vesting schedules beginning onabsolute TSR is less than negative 15%); and (iv) 200% if ranked at the grant date. Fair75th percentile or above. The value of the RSUscommon stock on the date of grant is based on the closing price of NRG common stock on the date of grant.


(a) For RPSU's granted in 2022 and forward the peer group will consist of the companies that comprise the Standard & Poor’s 500 Index on the first day of the performance period.
150


The following table summarizes the Company's non-vested RSUPSU awards and changes during the year:
 
Units(a)
 Weighted Average Grant Date Fair Value per Unit
Non-vested at December 31, 20172,377,813
 $14.63
Granted447,309
 28.90
Forfeited(315,569) 18.93
Vested(1,051,471) 17.67
Non-vested at December 31, 20181,458,082
 16.16
(a) As of December 31, 2018, 7,319 RSUs granted to GenOn employees remain outstanding
UnitsWeighted Average Grant-Date Fair Value per Unit
Non-vested at December 31, 2020793,561 $41.69 
Granted426,768 46.78 
Forfeited(93,031)47.21 
Vested(396,793)35.32 
Non-vested at December 31, 2021730,505 47.40 
The total fair value of RSUs vested during the years ended December 31, 2018, 2017, and 2016, was $42 million, $19 million, and $11 million, respectively. The weighted average grant date fair value of RSUsPSUs granted during the years ended December 31, 2018, 2017,2021, 2020 and 20162019, was $28.90, $12.44,$46.78, $23.75 and $11.54,$22.50, respectively.

Deferred Stock Units
DSUs represent the right of a participant to be paid one share of NRG common stock at the end of a deferral period established under the terms of the award. DSUs granted under the Company's LTIPs are fully vested at the date of issuance. FairThe fair value of the DSUs, whichPSUs is based on the closing price of NRG common stockestimated on the date of grant is recorded as compensation expenseusing a Monte Carlo simulation model and expensed over the service period, which equals the vesting period. Significant assumptions used in the period of grant.
The following table summarizesfair value model with respect to the Company's outstanding DSU awardsPSUs are summarized below:
2021(a)
20202019
RPSUsRPSUsRPSUs
Expected volatility34.05 %30.15 %40.72 %
Expected term (in years)333
Risk free rate0.17 %1.58 %2.45 %
(a) Assumptions pertain to the main award granted in January 2021. Additional 60,815 RPSUs were granted in September 2021 with a risk free rate of 0.42% and changes during the year:expected volatility of 37.38%
 
Units(a)
 Weighted Average Grant Date Fair Value per Unit
Outstanding at December 31, 2017427,148
 $21.54
Granted61,645
 33.43
Converted to Common Stock(156,878) 23.59
Outstanding at December 31, 2018331,915
 22.94
(a) There were no DSUs granted to GenOn employees and outstanding as of December 31, 2018 and 2017
The aggregate intrinsic values for DSUs outstanding as of December 31, 2018, 2017, and 2016 were approximately $13 million, $12 million, and $6 million, respectively. The aggregate intrinsic values for DSUs converted to common stock forFor the years ended December 31, 2018, 2017,2021 and 2016 were $0 million, $4 million, and $1 million, respectively. The weighted average grant date fair value2020, expected volatility is calculated based on NRG's historical stock price volatility data over the period commensurate with the expected term of DSUs granted during the years ended December 31, 2018, 2017, and 2016 was $33.43, $16.76, and $16.85, respectively.PSU, which equals the vesting period.
Performance Stock Units
PSUs entitle the recipient to stock upon vesting. The amount of the award is subject to the Company's achievement of certain performance measures over the vesting period. PSUs include RPSUs and MSUs. As of December 31, 2018,2021, non-vested PSUs consist of Market Stock Units, or MSUs, and Relative Performance Stock Units, or RPSUs.
Relative Performance Stock Units — RPSUs are restricted grants where the quantity of shares increases and decreases alongside the Company's Total Shareholder Return, or TSR, relative to the TSR of the Company's current proxy peer group and the total returns of select indexes, or Peer Group.Group(a). Each RPSU represents the potential to receive NRG common stock after the completion of the performance period, typically three years of service from the date of grant. The number of shares of NRG common stock to be paid (if any) as of the vesting date for each RPSU will depend on the Company’s percentile rank within the Peer Group. The number of shares of common stock to be paid as of the vesting date for each RPSU is linearly interpolated for TSR performance between the following points: (i) 0% if ranked below the 25th percentile; (ii) 25% if ranked at the 25th percentile; (iii) 100% if ranked at the 55th percentile (or the 65th percentile if the Company's absolute TSR is less than negative 15%); and (iv) 200% if ranked at the 75th percentile or above. The value of the common stock on the date of grant is based on the closing price of NRG common stock on the date of grant.
Market Stock Units — MSUs are restricted grants where

(a) For RPSU's granted in 2022 and forward the quantitypeer group will consist of shares increases and decreases alongside the Company's TSR. Each MSU representscompanies that comprise the potential to receive NRG common stock afterStandard & Poor’s 500 Index on the completionfirst day of the performance period, typically three years of service from the date of grant. The number of shares of common stock to be paid as of the vesting date for each MSU is : (i) zero shares, if the TSR has decreased by more than 25% over the performance period, (ii) three-quarters of one share, if the TSR has decreased by 25% over the performance period; (iii) interpolated between three-quarters of one share and one share, if the TSR has decreased less than 25% over the performance period; (iv) one share, if there is no change in TSR over the performance period; (v) interpolated between one share and two shares, if TSR increases less than 100% during the performance period; and (vi) two shares, if the TSR increases 100% over the performance period. The value of the common stock on the date of grant is based on the closing price of NRG common stock on the date of grant. The Company last granted MSUs during the year ended December 31, 2016.
150


The following table summarizes the Company's non-vested PSU awards and changes during the year:
 
Units(a)
 Weighted Average Grant-Date Fair Value per Unit
Non-vested at December 31, 20171,858,821
 $18.27
Granted372,147
 35.36
Forfeited(134,473) 22.26
Vested(385,861) 30.31
Non-vested at December 31, 20181,710,634
 19.12
(a) There were no PSUs granted to GenOn employees and outstanding as of December 31, 2018
UnitsWeighted Average Grant-Date Fair Value per Unit
Non-vested at December 31, 2020793,561 $41.69 
Granted426,768 46.78 
Forfeited(93,031)47.21 
Vested(396,793)35.32 
Non-vested at December 31, 2021730,505 47.40 

The weighted average grant date fair value of PSUs granted during the years ended December 31, 2018, 20172021, 2020 and 2016,2019, was $35.36, $15.91$46.78, $23.75 and $14.73,$22.50, respectively.
The fair value of PSUs is estimated on the date of grant using a Monte Carlo simulation model and expensed over the service period, which equals the vesting period. Significant assumptions used in the fair value model with respect to the Company's PSUs are summarized below:
2021(a)
20202019
RPSUsRPSUsRPSUs
Expected volatility34.05 %30.15 %40.72 %
Expected term (in years)333
Risk free rate0.17 %1.58 %2.45 %
 2018 2017 2016
 RPSUs RPSUs MSUs
Expected volatility47.52% 43.96% 34.33%
Expected term (in years)3
 3
 3
Risk free rate2.01% 1.5% 1.31%
(a) Assumptions pertain to the main award granted in January 2021. Additional 60,815 RPSUs were granted in September 2021 with a risk free rate of 0.42% and expected volatility of 37.38%
For the years ended December 31, 20182021 and 2017,2020, expected volatility is calculated based on NRG's historical stock price volatility data over the period commensurate with the expected term of the PSU, which equals the vesting period.
Non-Qualified Stock Options
All NQSOs granted under the Company's LTIP were fully vested as of December 31, 2021, 2020 and 2019. NaN NQSOs were granted in 2021, 2020 or 2019. NRG recognized compensation costs for NQSOs over the requisite service period for the entire award. No compensation expense was recognized during 2021, 2020 or 2019 as it was fully recognized in prior years. The maximum contractual term is 10 years for NRG's outstanding NQSOs.
The following table summarizes the Company's NQSO activity and changes during the year:
Shares
Weighted Average
Exercise Price
Weighted Average Remaining Contractual Term (in years)Aggregate Intrinsic Value (in millions)
Outstanding at December 31, 202077,047 $25.13 0.5$
Expired(4,800)29.08 
Exercised(54,377)26.44 
Outstanding at December 31, 202117,870 20.07 0.2— 
Exercisable at December 31, 202117,870 20.07 0.2— 
The following table summarizes the total intrinsic value of options exercised and the cash received from the exercises of options:
 Year Ended December 31,
(In millions)202120202019
Total intrinsic value of options exercised$$$
Cash received from options exercised
151


Supplemental Information
The following table summarizes NRG's total compensation expense recognized for the years presented, as well as total non-vested compensation costs not yet recognized and the period over which this expense is expected to be recognized as of December 31, 2018,2021, for each of the types of awards issued under the LTIPs. Minimum tax withholdings of $19$9 million,, $5 $27 million,, and $5$36 million for the years ended December 31, 2018, 2017,2021, 2020, and 2016,2019, respectively, are reflected as a reduction to additional paid-in capital on the Company's consolidated balance sheets and are reflected as operating activities on the Company's consolidated statements of cash flows.sheets.
   Non-vested Compensation Cost
 (In millions, except weighted average data)Compensation Expense
Unrecognized
Total Cost
Weighted Average Recognition Period Remaining (In years)
Year Ended December 31,As of December 31,
Award20212020201920212021
RSUs$$$$16 1.80
DSUs— 0.00
RPSUs10 10 15 1.19
PRSUs(a)
11 10 1.52
Total$27 $27 $32 $41  
Tax detriment/(benefit) recognized$$(9)$(12)  
       Non-vested Compensation Cost
 Compensation Expense 
Unrecognized
Total Cost
 Weighted Average Recognition Period Remaining (In years)
 Year Ended December 31, As of December 31,
Award2018 2017 2016 2018 2018
 (In millions, except weighted average data)
NQSOs(a)
$
 $
 $
 $
 0.00
RSUs12
 15
 12
 9
 0.89
DSUs2
 2
 2
 
 0.00
MSUs4
 5
 2
 
 0.03
RPSUs7
 3
 
 10
 1.32
PRSUs(b)
16
 13
 4
 14
 1.17
Total(c)
$41
 $38
 $20
 $33
  
Tax detriment recognized$(4) $(5) $(4)  
  
(a) All NQSOs granted under the Company's LTIP were fully vested as of December 31, 2018, 2017, and 2016
(b) Phantom Restricted Stock Units, PRSUs, are liability-classified time-based awards that typically vest ratably over a three-yearthree-year period. The amount to be paid upon vesting is based on NRG's closing stock price for the period
(c) Does not include compensation expense of $1 million, $6 million, and $4 million for each of the years ended December 31, 2018, 2017, and 2016, which was recorded in loss from discontinued operations in the Company's consolidated statements of operations


Note 2022 — Related Party Transactions
NRG provides services to some of its related parties, who are accounted for as equity method investments, under operations and maintenance agreements. Fees for the services under these agreements include recovery of NRG's costs of operating the plants. Certain agreements also include fees for administrative service, a base monthly fee, profit margin and/or annual incentive bonus.
The following table summarizes NRG's material related party transactions with third party affiliates:
 Year Ended December 31,
(In millions)202120202019
Revenues from Related Parties Included in Operating Revenues   
Gladstone$$$
Ivanpah(a)
39 43 35 
Midway-Sunset
Total$49 $52 $44 
 Year Ended December 31,
 2018 2017 2016
 (In millions)
Revenues from Related Parties Included in Operating Revenues     
Gladstone$3
 $3
 $2
GenConn4
 5
 5
Ivanpah20
 
 
Midway-Sunset5
 
 
Total$32
 $8
 $7
Gladstone — NRG provides services to Gladstone, an equity method investment,(a)Includes fees under an operations and maintenance agreement. Fees for services under this contract primarily include recovery of NRG's costs of operating the plant, as approved in the annual budget, as well as a base monthly fee.
GenConn — NRG provides services to GenConn under operations and maintenanceproject management agreements with GenConn Devon and GenConn Middletown that began in June 2010 and June 2011, respectively.NRG no longer has an ownership interest in GenConn as a result of the sale of its ownership interests in NRG Yield, Inc. and its Renewables Platform.each project company
Ivanpah 
Note 23 — NRG provides services to Ivanpah, an equity method investment as of May 1, 2018, under an operations and maintenance agreement. Fees for the services under this contract primarily include recovery of NRG's costs of operating the plant plus a profit margin.
Midway-Sunset — NRG provides services to Midway-Sunset, an equity method investment, under an operations and maintenance agreement. Fees for the services under this contract primarily include recovery of NRG's costs of operating the plant, as approved in the annual budget, as well as a base monthly fee and an annual incentive bonus.
Services Agreement and Transition Services Agreement with GenOn
The Company provided GenOn with various management, personnel and other services, which include human resources, regulatory and public affairs, accounting, tax, legal, information systems, treasury, risk management, commercial operations, and asset management, as set forth in the services agreement with GenOn, or the Services Agreement. The annual fees under the Services Agreement was approximately $193 million and management had concluded that this method of charging overhead costs was reasonable. In connection with the Restructuring Support Agreement in 2017, NRG agreed to provide shared services to GenOn under the Services Agreement for an adjusted annualized fee of $84 million.
In December 2017, in conjunction with the confirmation of the GenOn Entities' plan of reorganization, the Services Agreement was terminated and replaced by the transition services agreement. Under the transition services agreement, NRG provided the shared services and other separation services at an annualized rate of $84 million, subject to certain credits and adjustments. GenOn provided notice to NRG of its intent to terminate the transition services agreement effective August 15, 2018 and in connection with the settlement agreement described in Note 3, Acquisitions, Discontinued Operations and Dispositions, all amounts owed and payable to NRG were settled against the $28 million credit provided for in the Restructuring Support Agreement. For the year ended December 31, 2018, NRG recorded approximately $53 million, under the transition services agreement against selling, general and administrative expenses post-Chapter 11 Filing. For the year ended December 31, 2017, NRG recorded other income - affiliate related to these services of $87 million prior to the Chapter 11 Filing and $42 million against selling, general and administrative expenses post-Chapter 11 Filing.
Credit Agreement with GenOn
NRG and GenOn were party to a secured intercompany revolving credit agreement.  The intercompany revolving credit agreement provided for a $500 million revolving credit facility, all of which was available for revolving loans and letters of credit. As a result of the GenOn bankruptcy, no additional revolving loans or letters of credit were available to GenOn. As of December 31, 2017, $92 million of letters of credit were issued and outstanding. As a result of the GenOn Settlement, as further described in Note 3, Acquisitions, Discontinued Operations, and Dispositions, outstanding borrowings were repaid to NRG, except for certain LCs issued which are further discussed below. The facility was terminated on December 14, 2018.
On December 7, 2018, NRG, GenOn and REMA entered into an agreement to support the outstanding LCs from the intercompany revolving credit agreement previously issued. As of December 31, 2018, $30 million was outstanding. GenOn

and REMA have provided support for these outstanding LCs through back-to-back letters of credit and cash collateral. The outstanding letters of credit will continue to accrue any contractual fees and expenses until they are terminated.

Commercial Operations Agreement
NRG Power Marketing LLC has entered into physical and financial intercompany commodity and hedging transactions with GenOn and certain of its subsidiaries. Subject to applicable collateral thresholds, these arrangements may provide for the bilateral exchange of credit support based upon market exposure and potential market movements. The terms and conditions of the agreements are generally consistent with industry practices and other third party arrangements. As of December 31, 2018, derivative assets and liabilities associated with these transactions are recorded within NRG's derivative instruments balances on the consolidated balance sheet, with related revenues and costs within operating revenues and cost of operations, respectively. Additionally, as of December 31, 2018 and December 31, 2017, the Company had $4 million and $32 million, respectively, of cash collateral posted in support of energy risk management activities by GenOn.

Note 21 — Commitments and Contingencies
Operating Lease Commitments
Powerton and Joliet Leases
The Company leases 100% interests in the Powerton facility and Unit 7 and Unit 8 of the Joliet facility through 2034 and 2030, respectively, through its indirect subsidiary, Midwest Generation, LLC. The Company accounts for these leases as operating leases and records lease expense on a straight-line basis over the lease term. In connection with the acquisition of Midwest Generation the Company recorded in 2014 the out-of-market value as a liability in out-of-market contracts of $159 million. The liability will be amortized through rent expense on a straight-line basis over the term of the lease. The Company expects to record lease expense, net of amortization of the out-of-market liability, of approximately $14 million per year through the term of the lease. This accounting will change effective January 1, 2019 upon the adoption of ASU 2016-02 as discussed further in Note 2, Summary of Significant Accounting Policies - Recent Accounting Developments - Guidance Not Yet Adopted.
Future minimum lease commitments under the Powerton and Joliet operating leases for the years ending after December 31, 2018 are as follows:
Period(In millions)
2019$1
20201
20213
20226
20236
Thereafter222
Total$239
Other Operating Leases
NRG leases certain Company facilities and equipment under operating leases, some of which include escalation clauses, expiring on various dates through 2036. NRG also has certain tolling arrangements to purchase power, which qualify as operating leases. Certain operating lease agreements include provisions such as scheduled rent increases, leasehold incentives, and rent concessions over their lease term. The Company recognizes the effects of these scheduled rent increases, leasehold incentives, and rent concessions on a straight-line basis over the lease term unless another systematic and rational allocation basis is more representative of the time pattern in which the leased property is physically employed. Lease expense under operating leases was $66 million, $69 million, and $85 million for the years ended December 31, 2018, 2017, and 2016, respectively.

Future minimum lease commitments under operating leases for the years ending after December 31, 2018 are as follows:
Period(a)
(In millions)
2019$60
202055
202143
202240
202339
Thereafter95
Total$332
(a) Amounts in the table exclude future sublease income of $29 million associated with long-term leases for office locations
Coal, GasFuel and Transportation Commitments
NRG has entered into long-term contractual arrangements to procure certain fuel and transportation services for the Company's generation assets and for the years ended December 31, 2018, 2017, and 2016, the Company purchased $1.2 billion, $1.0 billion, and $1.1 billion, respectively, under such arrangements.assets.
As of December 31, 2018,2021, the Company's minimum commitments under such outstanding agreements are estimated as follows:
Period(In millions)
2022$122 
202354 
202463 
202562 
202651 
Thereafter26 
Total(a)
$378 
(a)Actual fuel and transportation purchases are significantly higher than these estimated minimum unconditional long-term firm commitments with remaining term in excess of one year
152


Period(In millions)
2019$227
2020156
2021122
202274
202355
Thereafter209
Total$843
For the years ended December 31, 2021, 2020 and 2019, the costs of certain fuel and transportation were $0.6 billion, $0.5 billion and $0.6 billion, respectively.
Purchased PowerEnergy Commitments
NRG has purchasedlong-term contractual commitments related to electricity and natural gas products, including power contractspurchases, gas transportation and storage of various quantities and durations, thatand renewable purchased power agreements under PPAs with third-party project developers, which are not classifiedaccounted for as derivative assets and liabilities and do not qualify as operating leases.NPNS. These contracts are not included in the consolidated balance sheet as of December 31, 2018.2021. Minimum purchase commitment obligations are as follows as of December 31, 2018:2021:
Period(In millions)
2022$1,566 
20231,036 
2024617 
2025382 
2026289 
Thereafter1,071 
Total(a)
$4,961 
Period(In millions)
2019$30
202013
202112
202211
20231
Thereafter1
Total (a)
$68
(a)Actual energy purchases are significantly higher than these estimated minimum unconditional long-term firm commitments with remaining term in excess of one year
(a)
As of December 31, 2018, the maximum remaining term under any individual purchased power contract is ten years
For the years ended December 31, 2021, 2020 and 2019, the costs of purchased energy were $12.8 billion, $1.8 billion and $2.6 billion, respectively.
First Lien Structure
NRG has granted first liens to certain counterparties on a substantial portion of property and assets owned by NRG and the Company's assets, excluding assets acquired inguarantors of its senior debt. NRG uses the EME (including Midwest Generation) acquisitions, and NRG's assets that have project-level financing,first lien structure to reduce the amount of cash collateral and letters of credit that it would otherwise be required to post from time to time to support its obligations under out-of-the-money hedges. To the extent that the underlying hedge agreementspositions for forward sales of power or MWh equivalents. The Company's lien counterparties maya counterparty are out-of-the-money to NRG, the counterparty would have a claim on NRG's assets tounder the extent market prices exceed the hedged price.first lien program. As of December 31, 2018,2021, hedges under the first lien were out-of-the-money for NRG on a counterparty aggregate basis.

Lignite Contract with Texas Westmoreland Coal Co.
The Company's Limestone facility historically blended lignite obtained from the Jewett mine, which was operated by Texas Westmoreland Coal Co, or TWCC, and coal sourced from the Powder River Basin in Wyoming. On August 18, 2016, NRG gave notice to TWCC terminating the active mining of lignite under the contract, effective on December 31, 2016.  Under the contract, TWCC continues to be responsible for reclamation activities. NRG is responsible for reclamation costs and has recorded an adequate ARO liability. The Railroad Commission of Texas has imposed a bond obligation of approximately $99 million on TWCC for the reclamation of the mine. Pursuant to the contract with TWCC, NRG supports this obligation through surety bonds. Additionally, under the terms of the contract, NRG is obligated to provide additional performance assurance if required by the Railroad Commission of Texas.
On October 9, 2018, TWCC and certain of its affiliates filed for protection under Chapter 11 of the U.S. Bankruptcy Code before the Bankruptcy Court for the Southern District of Texas.  TWCC has obtained authorization from the Bankruptcy Court to continue to perform its obligations under its contract with the Company and to maintain surety bond programs throughout its operations.  In addition, NRG has not received any indication from the Railroad Commission of Texas of an intent to draw on the surety bonds.  TWCC has filed a plan of reorganization that, if confirmed, would provide for the assumption and/or assignment of the contract with NRG.  Unless the Jewett mine and other related assets of TWCC are sold to another third party before the plan of reorganization is consummated, TWCC and/or its assets, including the Jewett mine and related agreements with NRG, will be owned upon the consummation of the plan by a new entity that is initially owned and controlled by certain holders of TWCC’s pre-bankruptcy funded indebtedness.  The Bankruptcy Court is currently expected to consider confirmation of the plan in late February, unless adjourned to a later date.  However, given the uncertainty involved in bankruptcy proceedings, it is uncertain whether these transactions will be consummated and whether and to what extent TWCC’s bankruptcy may, in the future, impact the reclamation costs incurred by NRG or the surety bonds. 
Nuclear Insurance
STP maintains required insurance coverage for liability claims arising from nuclear incidents pursuant to the Price-Anderson Act. Effective September 10, 2018, theThe current liability limit per incident is $14.07$13.8 billion, subject to change to account for the effects of inflation and the number of licensed reactors. An inflation adjustment must be made at least once every five years with the next dueadjustment expected to be effective no later than September 10,November 1, 2023. Under the Price-Anderson Act, owners of nuclear power plants in the U.S. are required to purchase primary insurance limits of $450 million for each operating site. In addition, the Price-Anderson Act requires an additional layer of protection through mandatory participation in a retrospective rating plan for power reactors resulting in an additional $13.4$13.3 billion in funds available for public liability claims. The current maximum assessment per incident, per reactor, is approximately $138 million, taking into account a 5% adjustment for administrative fees, payable at approximately $21 million per year, per reactor. NRG would be responsible for 44% of the maximum assessment, or $9 million per year, per reactor, and a maximum of $61 million per incident.incident, per reactor. In addition, the U.S. Congress retains the ability to impose additional financial requirements on the nuclear industry to pay liability claims that exceed $14$13.8 billion for a single incident. The liabilities of the co-owners of STP with respect to the retrospective premium assessments for nuclear liability insurance are joint and several.
STP purchases insurance for property damage and site decontamination cleanup costs from Nuclear Electric Insurance Limited, or NEIL, and European Mutual Association for Nuclear Insurance, or EMANI, both of which are industry mutual insurance companies, of which STP is a member. STP has purchased $2.75$2.8 billion in limits for nuclear events and $1.5$1.0 billion in limits for non-nuclear events (the non-nuclear event limit is expected to reduce to $1.0 billion effective April 1, 2019).events. The nuclear event limit remains the maximum available from NEIL. The upper $1.25$1.3 billion in nuclear events limits (excess of the first $1.5 billion in nuclear events limits) is a single limit blanket policy shared with two Diablo Canyon nuclear reactors, which have no affiliation with the Company. This shared limit is not subject to automatic reinstatement in the event of a loss. The NEIL primary policy covers both nuclear and non-nuclear property damage events, and a NEIL companion policy provides Accidental Outage coverage for the co-owners of STP's lost revenue following a property damage event, at a weekly indemnity limit of $3 million per unit up to a maximum of $274 million nuclear per unit and $184 million non-nuclear per unit, and is subject to an eight-week waiting period. NRG also purchases an Accidental Outage policy from NEIL, which provides protection for lost revenue due to an insurable event. This coverage allows for reimbursement up to $1.98$2 million per week per unit up to a maximum of $216 million nuclear and $144 million non-nuclear, and is subject to an eight-weekeight-
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week waiting period. Accidental Outage coverage amounts decrease in the event more than one unit at a station is out of service due to a common accident. Under the terms of the NEIL and EMANI policies, member companies may be assessed up to ten10 and six6 times their annual premiums respectively if the NEIL or EMANI Board of Directors determines their surplus has been depleted due to the payment of property losses at any of the licensed reactors in a single policy year. NEIL and EMANI require that their members maintain an investment grade credit rating or insureensure their annual retrospective obligation by providing a financial guarantee, letter of credit, deposit premium, or an insurance policy. NRG has purchased an insurance policy from NEIL and EMANI to guarantee the Company's obligation; however note the NEIL aspect of this insurance will only respond to retrospective premium adjustments assessed within twenty-four months after the policy term, whereas NEIL's Board of Directors can make such an adjustment up to 6 years after the policy expires.

All insurance coverage is subject to various sub limits and significant deductibles.
Contingencies
The Company's material legal proceedings are described below. The Company believes that it has valid defenses to these legal proceedings and intends to defend them vigorously. NRG records reservesaccruals for estimated losses from contingencies when information available indicates that a loss is probable and the amount of the loss, or range of loss, can be reasonably estimated. As applicable, the Company has established an adequate reserveaccrual for the applicable legal matters, including regulatory and environmental matters as further discussed below.in Note 24, Regulatory Matters, and Note 25, Environmental Matters. In addition, legal costs are expensed as incurred. Management has assessed each of the following matters based on current information and made a judgment concerning its potential outcome, considering the nature of the claim, the amount and nature of damages sought, and the probability of success. Unless specified below, the Company is unable to predict the outcome of these legal proceedings or reasonably estimate the scope or amount of any associated costs and potential liabilities. As additional information becomes available, management adjusts its assessment and estimates of such contingencies accordingly. Because litigation is subject to inherent uncertainties and unfavorable rulings or developments, it is possible that the ultimate resolution of the Company's liabilities and contingencies could be at amounts that are different from its currently recorded reservesaccruals and that such difference could be material.
In addition to the legal proceedings noted below, NRG and its subsidiaries are party to other litigation or legal proceedings arising in the ordinary course of business. In management's opinion, the disposition of these ordinary course matters will not materially adversely affect NRG's consolidated financial position, results of operations, or cash flows.
Environmental Lawsuits
Sierra club et al. v. Midwest Generation Asbestos Liabilities LLCThe Company, through its subsidiary,In 2012, several environmental groups filed a complaint against Midwest Generation with the Illinois Pollution Control Board ("IPCB") alleging violations of environmental law resulting in groundwater contamination. In June 2019, the IPCB found that Midwest Generation violated the law because it had improperly handled coal ash at 4 facilities in Illinois and caused or allowed coal ash constituents to impact groundwater. On September 9, 2019, Midwest Generation filed a Motion to Reconsider numerous issues, which the court granted in part and denied in part on February 6, 2020. The IPCB will hold hearings to determine the appropriate relief. Midwest Generation has been working with the Illinois EPA to address the groundwater issues since 2010.
Consumer Lawsuits
Similar to other energy service companies (“ESCOs”) operating in the industry, from time-to-time, the Company and/or its subsidiaries may be subject to potential asbestos liabilitiesconsumer lawsuits in various jurisdictions where they sell natural gas and electricity.
Variable Price Cases — In the cases set forth below, referred to as the Variable Price Cases, such actions involve consumers alleging that one of the Company’s ESCOs promised that consumers would pay the same or less than they would have paid if they stayed with their default utility or previous energy supplier. The underlying claims of each case are similar and the Company continues to deny the allegations and is vigorously defending these matters. These matters were known and accrued for at the time of each acquisition.
XOOM Energy
XOOM Energy is a resultdefendant in a putative class action lawsuit pending in New York. This case is in the discovery phase.
Direct Energy
There are 3 putative class actions pending against Direct Energy: (1) Linda Stanley v. Direct Energy (S.D.N.Y Apr. 2019) - The parties mediated in June and agreed on a settlement. On November 16, 2021, the Court granted preliminary approval of its acquisition of EME.the settlement. The Company is currently analyzing the scope of potential liability as itfinal approval hearing will be held on April 5, 2022. It may relate to Midwest Generation. The Company believes that it has established an adequate reserve for these cases. On March 27, 2018, ComEd filed a Motion to Compel Payments of Claims seeking $61 million related to asbestos liabilities. On April 25, 2018, NRG filed an Omnibus Objection to All Remaining Claims of ComEd and Exelon. A trial before the Bankruptcy Courttake several months to determine the amount of ComEd’s claimsfinal payout amount; (2) Martin Forte v. Direct Energy (N.D.N.Y. Mar. 2017) - The Court recently granted Direct Energy’s Motion for Summary Judgment effectively ending the matter at the district court level. It is currently scheduled forlikely that the plaintiff will appeal;
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however, it is unlikely plaintiff will prevail; (3) Richard Schafer v. Direct Energy (W.D.N.Y. Dec. 2019; on appeal 2nd Cir. N.Y.) - The Court granted limited discovery that will end April 10, 2019.29, 2022. Summary judgement briefing is due on May 20, 2022.
California Department of Water Resources and San Diego Gas & Electric Company v. Sunrise Power Company LLC - On January 29, 2016, CDWR and SDG&E (plaintiffs) filed a lawsuit against Sunrise Power Company, along with NRG and Chevron Power Corporation (defendants).Telephone Consumer Protection Act ("TCPA") Cases In June 2001, CDWR and Sunrise entered into a 10-year PPA under which Sunrise would construct and operate a generating facility and provide powerthe cases set forth below, referred to CDWR.  Atas the time the PPA was entered into, Sunrise had a transportation services agreement, or TSA, to purchase natural gas from Kern River through April 30, 2018.  In August 2003, CDWR entered into an agreement with Sunrise and Kern River in which CDWR accepted assignment of the TSA through the term of the PPA.  After the PPA expired, Kern River demanded that any reassignment be to a party which met certain creditworthiness standards which Sunrise did not.  AsTCPA Cases, such the plaintiffs brought this lawsuit against the defendantsactions involve consumers alleging breach of contract, breach of covenant of good faith and fair dealing and improper distributions.  Plaintiffs generally claim damages of $1.2 million per month for the remaining 70 months of the TSA. On April 20, 2016, the defendants filed objections in response to the plaintiffs' complaint. The objections were granted on June 14, 2016; however, the plaintiffs were allowed to file amended complaints on July 1, 2016. On July 27, 2016, defendants filed objections to the amended complaints. On November 18, 2016, the court sustained the objections and allowed plaintiffs another opportunity to file a second amended lawsuit which they did on January 13, 2017. On April 21, 2017, the court issued an order sustaining the objections without leave to amend. On July 14, 2017, plaintiffs filed a notice of appeal. On January 10, 2018, plaintiffs filed their opening appellate brief. Defendants filed their opposition brief on April 10, 2018. On May 30, 2018, plaintiffs filed their reply brief. The case is now waiting for the court of appeal to schedule oral argument.
Griffoul v. NRG Residential Solar Solutions - On February 28, 2017, plaintiffs, consisting of New Jersey residential solar customers, filed a purported class action lawsuit in New Jersey state court.  Plaintiffs allege violations of the Telephone Consumer Protection Act of 1991, as amended, by receiving calls, texts or voicemails without consent in violation of the federal Telemarketing Sales Rule, and/or state counterpart legislation. The underlying claims of each case are similar. The Company denies the allegations asserted by plaintiffs and intends to vigorously defend these matters. These matters were known and accrued for at the time of the acquisition.
There are 2 putative class actions pending against Direct Energy: (1) Brittany Burk v. Direct Energy (S.D. Tex. Feb. 2019) - The Court denied Plaintiff's Motion for Class Certification and Motion for Substitution of a New Jersey Consumer Fraud ActionPlaintiff on September 20, 2021. The parties reached a settlement of the plaintiff's individual claims and Truth-in-Consumer Contracts, Warrantythe Court has conditionally dismissed the matter; and Notice Act with regard to certain provisions(2) Matthew Dickson v. Direct Energy (N.D. Ohio Jan. 2018) - Direct Energy has filed a Third-Party Petition against its vendor, Total Marketing Concepts, LLC, who placed voicemails without consent from Direct Energy and in violation of their residential solar contracts.the parties’ agreement. The plaintiffs seek damages and injunctive relief ascase was stayed pending the outcome of an appeal to the proper allocationSixth Circuit based on the unconstitutionality of the solar renewable energy credits. On June 6, 2017,TCPA during the defendantsperiod from 2015-2020. The Sixth Circuit found the TCPA was in effect during that period and remanded the case back to the trial court. Direct Energy refiled its motions along with supplements.
Winter Storm Uri Lawsuits
The Company has been named in certain property damage and wrongful death claims that have been filed a motionin connection with Winter Storm Uri. At this time, the Company is unable to compel arbitrationdetermine the extent or dismiss the lawsuit. Plaintiffs filedimpact of these various litigation matters due to their opposition on June 29, 2017. On July 14, 2017, the court denied NRG's motionpreliminary nature. The Company intends to compel arbitration or dismiss the case. On July 25, 2017, NRG filed a motion for reconsideration of the appeal, which the court denied. On August 22, 2017, NRG filed a notice of appeal. After oral argument on April 24, 2018, the Appellate Division reversed the lower court on May 4, 2018,vigorously defend these matters.
Indemnifications and ordered that the plaintiff must arbitrate their claims against NRG. On May 23, 2018, the plaintiff filed a petition for certification with the Supreme Court of New Jersey seeking to overturn the Appellate Division ruling. On January 25, 2019, the Supreme Court denied plaintiff’s petition for certification.Other Contractual Arrangements
Washington-St. Tammany and Claiborne Electric Cooperative v. LaGen - On June 28, 2017, plaintiffs Washington-St. Tammany Electric Cooperative, Inc. and Claiborne Electric Cooperative, Inc. filed a lawsuit against Louisiana Generating, L.L.C., or LaGen in the United States District Court for the Middle District of Louisiana. The plaintiffs claimclaimed breach of contract against LaGen for allegedly improperly charging the plaintiffs for costs related to the installation and maintenance of certain pollution control technology. Plaintiffs seeksought damages for the alleged improper charges and a declaration as to which charges arewere proper under the contract. On September 14, 2017,In February 2020, the court issueddismissed this lawsuit without prejudice for lack of subject matter jurisdiction. On March 17, 2020, plaintiffs filed a scheduling order setting this caselawsuit in the Nineteenth Judicial District Court for the Parish of East Baton Rouge in Louisiana alleging substantially the same matters. The Company anticipates a trial, on October 21, 2019. LaGen filed

its answer and affirmative defenses on November 17, 2017.in state court, to begin in 2023. On February 4, 2019, NRG sold the South Central Portfolio, including the entities subject to this litigation. However, NRG has agreed to indemnify the purchaser for certain losses suffered in connection therewith.
GenOn Chapter 11 Cases - On June 14, 2017, the GenOn Entities filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the Bankruptcy Court. On December 12, 2017, the Bankruptcy Court entered an order confirming GenOn's Chapter 11 plan, which provides for, among other things, GenOn’s transition to a standalone enterprise. GenOn's Chapter 11 plan became effective on December 14, 2018.

Note 2224 — Regulatory Matters
NRG operates in a highly regulated industry and is subject to regulation by various federal and state agencies. As such, NRG is affected by regulatory developments at both the federal and state levels and in the regions in which NRG operates. In addition, NRG is subject to the market rules, procedures, and protocols of the various ISO and RTO markets in which NRG participates. These power markets are subject to ongoing legislative and regulatory changes that may impact NRG's wholesale and retail businesses.operations.
In addition to the regulatory proceedings noted below, NRG and its subsidiaries are parties to other regulatory proceedings arising in the ordinary course of business or have other regulatory exposure. In management's opinion, the disposition of these ordinary course matters will not materially adversely affect NRG's consolidated financial position, results of operations, or cash flows.
Zero-Emission Credits for Nuclear Plants in Illinois and New York - In 2016, Illinois enacted a Zero Emission Credit, or ZEC, program for selected nuclear units in Illinois. In total, the program directs over $2.5 billion over ten years to two Exelon-owned nuclear power plants in Illinois. That same year, the NYSPSC issued its Clean Energy Standard, or CES, which provides for ZECs which would provide more than $7.6 billion over 12 years in out-of-market subsidy payments to certain selected nuclear generating units in New York. These ZECs are out-of-market subsidies that threaten to artificially suppress market prices and interfere with the wholesale power market. NRG, along with other companies, filed complaints in the federal courts of Illinois and New York alleging that these state programs are preempted by federal law and in violation of the dormant commerce clause.  These cases have proceeded through the federal district court as well as the federal appellate court in Illinois and New York, respectively. On January 7, 2019, NRG and its trade association filed a Petition for Writ of Certiorari with the United States Supreme Court in both cases.
California Station Power -As the result of unfavorable final and non-appealable litigation, the Company has accrued a liability associated with consumption of station power at three of the Company’sCompany's Encina power plantsplant facility in California after August 30, 2010. In December 2017, subsidiaries of the Company entered into settlements with SCE for the liabilities associated with the Company's El Segundo and Long Beach facilities. The Company has established an appropriate reserveaccrual pending potential regulatory action by SDG&ESan Diego Gas & Electric regarding Encina.the Company's Encina facility.

South Central - On August 4, 2016, NRG received a document hold notice from FERC regarding conduct in the MISO and PJM markets. It required NRG to retain communications related to multiple generating units in the South Central region. Since sending the notice, FERC has been investigatingOffice of Enforcement Staff investigated potential violations of MISO rules involving bidding for the Big Cajun 2 facility, as well as other aspects of NRG’s operations in MISO. On August 18, 2020, FERC hasOffice of Enforcement presented NRG with its preliminary findings. NRG responded to the authority to require disgorgementpreliminary findings on January 15, 2021. On September 16, 2021, FERC Office of profits and to impose penalties andEnforcement Staff informed NRG retains any liability following the sale of the South Central Portfolio. We expect a preliminary finding from FERC by the second quarter of 2019.

ISO-NE - On February 5, 2019, FERC has informed the Company that it has made a preliminary finding that the Company violated FERC's market behavior rules in connectioninvestigation is closed with offers made into the ISO-NE Forward Capacity Auction in 2016.  The Company understands that FERC is concerned that the Company was inaccurate in its communications with the Market Monitor regarding the costs and risks associated with operating certain units in the forward timeframe.  Ultimately, the Company opted to withdraw the relevant bids prior to the auction in 2016.  The Company will be engaging in discussions with FERC regarding this matter.no further action.



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Note 2325 — Environmental Matters
NRG is subject to a wide range of environmental laws in the development, construction, ownership and operation of projects.power plants. These laws generally require that governmental permits and approvals be obtained before construction and maintained during operation of power plants. NRG is also subject to laws regarding the protection of wildlife, including migratory birds, eagles and threatened and endangered species. The electric generation industry has been facing increasingly stringent requirements regarding GHGs,air quality, GHG emissions, combustion byproducts, water discharge and use, and threatened and endangered species that have been put in place in recent years. However, under the current U.S. presidential administration, some of these rules are being reconsidered and reviewed.species. In general, future laws are expected to require the addition of emissions controls or other environmental controls or to impose certainadditional restrictions on the operations of the Company's facilities, which could have a material effect on the Company's consolidated financial position, results of operations, or cash flows. Federal and stateThe Company has elected to use a $1 million disclosure threshold, as permitted, for environmental laws generally have become more stringent over time, although this trend could slow or pause inproceedings to which the near term with respect to federal laws under the current U.S. presidential administration.government is a party.
Air
On August 31, 2018,July 8, 2019, the EPA proposed replacingpromulgated the Clean Power Plan (CPP)ACE rule, which rescinded the CPP, which had sought to broadly regulate CO2 emissions from the power sector, with the Affordable Clean Energy (ACE)sector. The ACE rule which if finalized, would requirerequired states that have coal-fired EGUs to develop plans to seek heat rate improvements from coal-fired EGUs. The Company believes thatOn January 19, 2021, the D.C. Circuit vacated the ACE rule replacing(but on February 22, 2021, at the CPP ruleEPA's request, stayed the issuance of the portion of the mandate that would on balance be positive for its generation fleet.
In February 2012,vacate the repeal of the CPP). On October 29, 2021, the U.S. Supreme Court agreed to review the D.C. Circuit's decision, which should provide some clarity regarding the scope of the EPA's authority to regulate CO2 under the Clean Air Act. The Company expects the EPA promulgated standards (the MATS rule) to controlpromulgate a new rule to regulate GHG emissions of HAPs from coal and oil-fired electric generating units. The rule established limits for mercury, non-mercury metals, certain organics and acid gases, which had to be met beginning in April 2015. In December 2018,power plants after a decision from the EPA proposed a finding that regulating HAPs was not "appropriate and necessary" because the costs far exceed the benefits. Nonetheless, the EPA proposed keeping the substantive requirements of the MATS rule. While NRG cannot predict the final outcome of this rulemaking, NRG believes that because it has already invested in pollution controls and cleaner technologies, the fleet is well-positioned to comply with the MATS rule.U.S. Supreme Court.
Water
Once Through Cooling Regulation — In August 2014, the EPA finalized the regulation regarding the use of water for once through cooling at existing facilities to address impingement and entrainment concerns. NRG anticipates that more stringent requirements will be incorporated into some of its water discharge permits over the next several years as NPDES permits are renewed, the Company anticipates the cost of complying with these requirements to be immaterial.
Effluent Limitations Guidelines — In November 2015, the EPA revised the Effluent Limitations GuidelinesELG for Steam Electric Generating Facilities, which would have imposed more stringent requirements (as individual permits were renewed) for wastewater streams from flue gas desulfurization, or FGD, fly ash, bottom ash, and flue gas mercury control.  In April 2017, the EPA granted two petitions to reconsider the rule and also administratively stayed some of the deadlines. On September 18, 2017, the EPA promulgated a final rule that, (i) postponesamong other things, postponed the compliance dates to preserve the status quo for FGD wastewater and bottom ash transport water by two years to November 2020 until the EPA completes its next rulemaking and (ii) withdrewamended the April 2017 administrative stay. The legal challenges have been suspended whilerule. On October 13, 2020, the EPA reconsidersamended the 2015 ELG rule by: (i) altering the stringency of certain limits for FGD wastewater; (ii) relaxing the zero-discharge requirement for bottom ash transport water; and likely modifies(iii) changing several deadlines. On July 26, 2021, the EPA announced that it is initiating a new rulemaking to evaluate revising the ELG rule. Accordingly,While the EPA is developing the new rule, the existing rule (as amended in 2020) will stay in place, and the EPA expects permitting authorities to continue to implement the current regulation. The EPA anticipates releasing a proposed rule in fall 2022. In October 2021, NRG informed its regulators that the Company has largely eliminated its estimate of the environmental capital expenditures that would have been requiredintends to comply with permits incorporating the revised guidelines. The Company will revisit these estimates afterELG by ceasing combustion of coal by the rule is revised.  end of 2028 at its domestic coal units outside of Texas, and installing appropriate controls by the end of 2025 at its 2 plants in Texas.
Byproducts, Wastes, Hazardous Materials and Contamination
In April 2015, the EPA finalized the rule regulating byproducts of coal combustion (e.g., ash and gypsum) as solid wastes under the RCRA. In September 2017, the EPA agreed to reconsider the rule. On July 30, 2018, the EPA promulgated a rule that amendsamended the existing ash rule by extending some of the deadlines and providing more flexibility for compliance. On August 21, 2018, the D.C. Circuit found, among other things, that the EPA had not adequately regulated unlined ponds and legacy ponds. Accordingly, we anticipate thatIn 2019 and 2020, the EPA will promulgate new regulationsproposed several changes to this rule. On August 28, 2020, the EPA finalized "A Holistic Approach to Close Part A: Deadline to Initiate Closure," which amended the April 2015 Rule to address these issues (including compliance deadlines) as it reconsiders other aspectsthe August 2018 D.C. Circuit decision and extend some of the deadlines. On November 12, 2020, the EPA finalized "A Holistic Approach to Closure Part B," which further amended the April 2015 Rule to, among other things, provide procedures for requesting approval to operate existing rule. The EPA has stated that it intends to further revise the rule. The Company will provide estimates of the cost of compliance after the rule is revised.impoundments with an alternative liner.
For further discussion of these matters, refer to
Note 21, Commitments and Contingencies.

Note 2426 — Cash Flow Information
Detail of supplemental disclosures of cash flow and non-cash investing and financing information was:
 Year Ended December 31,
 (In millions)202120202019
Interest paid, net of amount capitalized$433 $340 $372 
Income taxes paid, net of refunds32 24 
Non-cash investing activities:
(Decreases)/additions to fixed assets for accrued capital expenditures(16)(6)

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 Year Ended December 31,
 2018 2017 2016
 (In millions)
Interest paid, net of amount capitalized$436
 $543
 $606
Income taxes paid, net of refunds9
 9
 14
Non-cash investing and financing activities:     
Additions to fixed assets for accrued capital expenditures20
 19
 9



Note 2527 — Guarantees
NRG and its subsidiaries enter into various contracts that include indemnification and guarantee provisions as a routine part of the Company's business activities. Examples of these contracts include asset purchases and sale agreements, commodity sale and purchase agreements, retail contracts, joint venture agreements, EPC agreements, operation and maintenance agreements, service agreements, settlement agreements, and other types of contractual agreements with vendors and other third parties, as well as affiliates. These contracts generally indemnify the counterparty for tax, environmental liability, litigation and other matters, as well as breaches of representations, warranties and covenants set forth in these agreements. The Company is obligated with respect to customer deposits associated with the Company's retail businesses.operations. In some cases, NRG's maximum potential liability cannot be estimated, since the underlying agreements contain no limits on potential liability.
The following table summarizes the maximum potential exposures that can be estimated for NRG's guarantees, indemnities, and other contingent liabilities by maturity:
 By Remaining Maturity at December 31,
(In millions)2021 
Guarantees
Under
1 Year
1-3 Years3-5 Years
Over
5 Years
Total2020 Total
Letters of credit and surety bonds$4,064 $31 $— $— $4,095 $1,153 
Asset sales guarantee obligations269 25 24 96 414 506 
Other guarantees— — — 93 93 87 
Total guarantees$4,333 $56 $24 $189 $4,602 $1,746 
 By Remaining Maturity at December 31,
 2018  
Guarantees
Under
1 Year
 1-3 Years 3-5 Years 
Over
5 Years
 Total 2017 Total
 (In millions)
Letters of credit and surety bonds(a)(b)
$1,138

$79

$

$36

$1,253

$1,003
Asset sales guarantee obligations

4

257

532

793

312
Other guarantees

105



616

721

645
Total guarantees$1,138

$188

$257

$1,184

$2,767

$1,960
(a)As of December 31, 2017 excludes $92 million of letters of credit issued under the intercompany revolving credit agreement between NRG and GenOn
(b)December 31, 2018 includes $32 million of letter of credit and surety bonds for the benefit of GenOn where NRG holds cash or letter of credit to back stop the liability


Letters of credit and surety bonds — As of December 31, 2018,2021, NRG and its consolidated subsidiaries were contingently obligated for a total of $1.3$4.1 billion under letters of credit and surety bonds. The significant increase in 2021 is primarily due to the acquisition of Direct Energy. Most of these letters of credit and surety bonds are issued in support of the Company's obligations to perform under commodity agreements and obligations associated with future closure and maintenance of ash sites, as well as for financing or other arrangements. A majority of these letters of credit and surety bonds expire within one year of issuance, and it is typical for the Company to renew them on similar terms.
The material indemnities, within the scope of ASC 460, are as follows:
Asset sales — The purchase and sale agreements which govern NRG's asset or share investments and divestitures customarily contain guarantees and indemnifications of the transaction to third parties. The contracts indemnify the parties for liabilities incurred as a result of a breach of a representation or warranty by the indemnifying party, or as a result of a change in tax laws. These obligations generally have a discrete term and are intended to protect the parties against risks that are difficult to predict or estimate at the time of the transaction. In several cases, the contract limits the liability of the indemnifier. NRG has no reason to believe that the Company currently has any material liability relating to such routine indemnification obligations included in the table above, except for the California property tax indemnity for estimated increases in California property taxes of certain solar properties that the Company agreed to indemnify NRG Yield for, as describedpart of the agreement to sell NRG Yield and the Renewables Platform. The California property tax indemnity is estimated to be $158 million as of December 31, 2021 and is included in Note 3, Acquisitions, Discontinued Operations and Dispositions.the above table under asset sales guarantee obligations.
Other guarantees — NRG has issued other guarantees of obligations including payments under certain agreements with respect to certain of its unconsolidated subsidiaries, payment or performance by fuel providers and payment or reimbursement of credit support and deposits. The Company does not believe that it will be required to perform under these guarantees.

Other indemnities — Other indemnifications NRG has provided cover operational, tax, litigation and breaches of representations, warranties and covenants. NRG has also indemnified, on a routine basis in the ordinary course of business, consultants or other vendors who have provided services to the Company. NRG's maximum potential exposure under these indemnifications can range from a specified dollar amount to an indeterminate amount, depending on the nature of the transaction. Total maximum potential exposure under these indemnifications is not estimable due to uncertainty as to whether claims will be made or how they will be resolved. NRG does not have any reason to believe that the Company will be required to make any material payments under these indemnity provisions.
Because many of the guarantees and indemnities NRG issues to third parties and affiliates do not limit the amount or duration of its obligations to perform under them, there exists a risk that the Company may have obligations in excess of the amounts described above. For those guarantees and indemnities that do not limit the Company's liability exposure, it may not be able to estimate what the Company's liability would be, until a claim is made for payment or performance, due to the contingent nature of these contracts.


157


Note 2628 — Jointly Owned Plants
Certain NRG subsidiaries own undivided interests in jointly-owned plants, as described below. These plants are maintained and operated pursuant to their joint ownership participation and operating agreements. NRG is responsible for its subsidiaries' share of operating costs and direct expenses and includes its proportionate share of the facilities and related revenues and direct expenses in these jointly-owned plants in the corresponding balance sheet and income statement captions of the Company's consolidated financial statements.
The following table summarizes NRG's proportionate ownership interest in the Company's jointly-owned facilities:
(In millions unless otherwise stated)
As of December 31, 2021
Ownership
Interest
Property, Plant &
Equipment
Accumulated
Depreciation
Construction in
Progress
South Texas Project Units 1 and 2, Bay City, TX44.00 %$421 $(208)$
Cedar Bayou Unit 4, Baytown, TX50.00 %220 (109)12 


As of December 31, 2018
Ownership
Interest
 
Property, Plant &
Equipment
 
Accumulated
Depreciation
 
Construction in
Progress
 (In millions unless otherwise stated)
South Texas Project Units 1 and 2, Bay City, TX44.00% $382
 $(185) $5
Cedar Bayou Unit 4, Baytown, TX50.00% 215
 (84) 8



Note 27 — Unaudited Quarterly Financial Data
Refer to Note 3, Acquisitions, Discontinued Operations and Dispositions, and Note 9, Asset Impairments, for a description of the effect of unusual or infrequently occurring events during the quarterly periods. Summarized unaudited quarterly financial data is as follows:
 Quarter Ended
 2018
 December 31 September 30 June 30 March 31
 (In millions, except per share data)
Operating revenues$1,992
 $2,960
 $2,461
 $2,065
Operating income49
 398
 174
 361
Net (loss)/income from continuing operations(93) 288
 27
 238
Income/(loss) from discontinued operations80
 (336) 69
 (5)
Net (loss)/income(13) (48) 96
 233
Less: Net (loss)/income attributable to noncontrolling interests and redeemable noncontrolling interests(2) 24
 24
 (46)
(Loss)/income available to Common Stockholders$(11) $(72) $72
 $279
Weighted average number of common shares outstanding — basic289
 299
 310
 318
Income/(loss) from discontinued operations per weighted average common share — basic$0.28
 $(1.12) $0.22
 $(0.02)
Net (loss)/income per weighted average common share — basic$(0.04) $(0.24) $0.23
 $0.88
Weighted average number of common shares outstanding — diluted289
 299
 314
 322
Income/(loss) from discontinued operations per weighted average common share — diluted$0.28
 $(1.12) $0.22
 $(0.02)
Net (loss)/income per weighted average common share — diluted$(0.04) $(0.24) $0.23
 $0.87
 Quarter Ended
 2017
 December 31 September 30 June 30 March 31
 (In millions, except per share data)
Operating revenues$2,154
 $2,618
 $2,281
 $2,021
Operating (loss)/income(1,200) 275
 214
 (30)
Net (loss)/income from continuing operations(1,390) 163
 60
 (178)
(Loss)/income from discontinued operations(265) 
 (702) (25)
Net (loss)/income(1,655) 163
 (642) (203)
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests(120) (8) (16) (40)
(Loss)/income available to Common Stockholders$(1,535) $171
 $(626) $(163)
Weighted average number of common shares outstanding — basic317
 317
 316
 316
(Loss)/income from discontinued operations per weighted average common share — basic$(0.84) $
 $(2.22) $(0.08)
Net (loss)/income per weighted average common share — basic$(4.84) $0.54
 $(1.98) $(0.52)
Weighted average number of common shares outstanding — diluted317
 322
 316
 316
(Loss)/income from discontinued operations per weighted average common share — diluted$(0.84) $
 $(2.22) $(0.08)
Net (loss)/income per weighted average common share — diluted$(4.84) $0.53
 $(1.98) $(0.52)

Note 28 — Condensed Consolidating Financial Information
As of December 31, 2018, the Company had outstanding $4.4 billion of Senior Notes due 2022 to 2048, as shown in Note 11, Debt and Capital Leases. These Senior Notes are guaranteed by certain of NRG's current and future 100% owned domestic subsidiaries, or guarantor subsidiaries. These guarantees are both joint and several. The non-guarantor subsidiaries include all of NRG's foreign subsidiaries and certain domestic subsidiaries.
Unless otherwise noted below, each of the following guarantor subsidiaries fully and unconditionally guaranteed the Senior Notes as of December 31, 2018:
Ace Energy, Inc.NRG Advisory Services LLCNRG Norwalk Harbor Operations Inc.
Allied Home Warranty GP LLCNRG Affiliate Services Inc.NRG Operating Services, Inc.
Allied Warranty LLCNRG Arthur Kill Operations Inc.NRG Oswego Harbor Power Operations Inc.
Arthur Kill Power LLCNRG Astoria Gas Turbine Operations Inc.NRG PacGen Inc.
Astoria Gas Turbine Power LLCNRG Bayou Cove LLCNRG Portable Power LLC
Bayou Cove Peaking Power, LLCNRG Business Services LLCNRG Power Marketing LLC
BidURenergy, Inc.NRG Cabrillo Power Operations Inc.NRG Reliability Solutions LLC
Cabrillo Power I LLCNRG California Peaker Operations LLCNRG Renter's Protection LLC
Cabrillo Power II LLCNRG Cedar Bayou Development Company, LLCNRG Retail LLC
Carbon Management Solutions LLCNRG Connected Home LLCNRG Retail Northeast LLC
Cirro Group, Inc.NRG Connecticut Affiliate Services Inc.NRG Rockford Acquisition LLC
Cirro Energy Services, Inc.NRG Construction LLCNRG Saguaro Operations Inc.
Connecticut Jet Power LLCNRG Curtailment Solutions, IncNRG Security LLC
Cottonwood Development LLCNRG Development Company Inc.NRG Services Corporation
Cottonwood Energy Company LPNRG Devon Operations Inc.NRG SimplySmart Solutions LLC
Cottonwood Generating Partners I LLCNRG Dispatch Services LLCNRG South Central Affiliate Services Inc.
Cottonwood Generating Partners II LLCNRG Distributed Energy Resources HoldingsNRG South Central Generating LLC
Cottonwood Generating Partners III LLCNRG Distributed Generation PR LLCNRG South Central Operations Inc.
Cottonwood Technology Partners LPNRG Dunkirk Operations Inc.NRG South Texas LP
Devon Power LLCNRG El Segundo Operations Inc.NRG Texas C&I Supply LLC
Dunkirk Power LLCNRG Energy Efficiency-L LLCNRG Texas Gregory LLC
Eastern Sierra Energy Company LLCNRG Energy Labor Services LLCNRG Texas Holding Inc.
El Segundo Power, LLCNRG ECOKAP Holdings LLCNRG Texas LLC
El Segundo Power II LLCNRG Energy Services Group LLCNRG Texas Power LLC
Energy Alternatives Wholesale, LLCNRG Energy Services International Inc.NRG Warranty Services LLC
Energy Choice Solutions LLCNRG Energy Services LLCNRG West Coast LLC
Energy Plus Holdings LLCNRG Generation Holdings, Inc.NRG Western Affiliate Services Inc.
Energy Plus Natural Gas LLCNRG Greenco LLCO'Brien Cogeneration, Inc. II
Energy Protection Insurance CompanyNRG Home & Business Solutions LLCONSITE Energy, Inc.
Everything Energy LLCNRG Home Services LLCOswego Harbor Power LLC
Forward Home Security, LLCNRG Home Solutions LLCReliant Energy Northeast LLC
GCP Funding Company, LLCNRG Home Solutions Product LLCReliant Energy Power Supply, LLC
Green Mountain Energy CompanyNRG Homer City Services LLCReliant Energy Retail Holdings, LLC
Gregory Partners, LLCNRG Huntley Operations Inc.Reliant Energy Retail Services, LLC
Gregory Power Partners LLCNRG HQ DG LLCRERH Holdings, LLC
Huntley Power LLCNRG Identity Protect LLCSaguaro Power LLC
Independence Energy Alliance LLCNRG Ilion Limited PartnershipSomerset Operations Inc.
Independence Energy Group LLCNRG Ilion LP LLCSomerset Power LLC
Independence Energy Natural Gas LLCNRG International LLCTexas Genco GP, LLC
Indian River Operations Inc.NRG Maintenance Services LLCTexas Genco Holdings, Inc.
Indian River Power LLCNRG Mextrans Inc.Texas Genco LP, LLC
Louisiana Generating LLCNRG MidAtlantic Affiliate Services Inc.Texas Genco Services, LP
Meriden Gas Turbines LLCNRG Middletown Operations Inc.US Retailers LLC
Middletown Power LLCNRG Montville Operations Inc.Vienna Operations Inc.
Montville Power LLCNRG New Roads Holdings LLCVienna Power LLC
NEO CorporationNRG North Central Operations Inc.WCP (Generation) Holdings LLC
New Genco GP, LLCNRG Northeast Affiliate Services Inc.West Coast Power LLC
Norwalk Power LLC


The non-guarantor subsidiaries include all of NRG's foreign subsidiaries and certain domestic subsidiaries. NRG conducts much of its business through and derives much of its income from its subsidiaries. Therefore, the Company's ability to make required payments with respect to its indebtedness and other obligations depends on the financial results and condition of its subsidiaries and NRG's ability to receive funds from its subsidiaries. Except for NRG Bayou Cove, LLC, which is subject to certain restrictions under the Company's Peaker financing agreements, there are no restrictions on the ability of any of the guarantor subsidiaries to transfer funds to NRG. In addition, there may be restrictions for certain non-guarantor subsidiaries.
The following condensed consolidating financial information presents the financial information of NRG Energy, Inc., the guarantor subsidiaries and the non-guarantor subsidiaries in accordance with Rule 3-10 under the SEC's Regulation S-X. The financial information may not necessarily be indicative of results of operations or financial position had the guarantor subsidiaries or non-guarantor subsidiaries operated as independent entities.
In this presentation, NRG Energy, Inc. consists of parent company operations. Guarantor subsidiaries and non-guarantor subsidiaries of NRG are reported on an equity basis. For companies acquired, the fair values of the assets and liabilities acquired have been presented on a push-down accounting basis.
In addition, the condensed parent company financial statements are provided in accordance with Rule 12-04, Schedule I of Regulation S-X, as the restricted net assets of NRG Energy, Inc.'s subsidiaries exceed 25 percent of the consolidated net assets of NRG Energy, Inc. These statements should be read in conjunction with the consolidated statements and notes thereto of NRG Energy, Inc. For a discussion of NRG Energy, Inc.'s long-term debt, see Note 11, Debt and Capital Leases,to the consolidated financial statements. For a discussion of NRG Energy, Inc.'s contingencies, see Note 21, Commitments and Contingencies,to the consolidated financial statements. For a discussion of NRG Energy, Inc.'s guarantees, see Note 25, Guarantees,to the consolidated financial statements.

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
For the Year Ended December 31, 2018
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 
NRG Energy, Inc.
(Note Issuer)
 
Eliminations (a)
 
Consolidated
Balance
 (In millions)
Operating Revenues         
Total operating revenues$8,119
 $1,385
 $
 $(26) $9,478
Operating Costs and Expenses         
Cost of operations6,147
 959
 28
 (26) 7,108
Depreciation and amortization238
 150
 33
 
 421
Impairment losses6
 93
 
 
 99
Selling, general and administrative462
 63
 348
 (74) 799
Reorganization costs4
 
 86
 
 90
Development costs
 1
 11
 (1) 11
Total operating costs and expenses6,857
 1,266
 506
 (101) 8,528
Gain on sale of assets4
 28
 
 
 32
Operating Income/(Loss)1,266
 147
 (506) 75
 982
Other Income/(Expense)         
Equity in earnings of consolidated subsidiaries23
 
 1,291
 (1,314) 
Equity in earnings/(losses) of unconsolidated affiliates
 10
 (1) 
 9
Impairment losses on investments
 (15) 
 
 (15)
Other income/(expense), net32
 (13) (1) 
 18
Loss on debt extinguishment, net
 
 (44) 
 (44)
Interest expense(14) (49) (420) 
 (483)
Total other income/(expense)41
 (67) 825
 (1,314) (515)
Income from Continuing Operations Before Income Taxes1,307
 80
 319
 (1,239) 467
Income tax expense/(benefit)372
 19
 (384) 
 7
Income from Continuing Operations935
 61
 703
 (1,239) 460
Income/(Loss) from Discontinued Operations, net of income tax62
 75
 (329) 
 (192)
Net Income997
 136
 374
 (1,239) 268
Less: Net (loss)/income attributable to noncontrolling interests and redeemable noncontrolling interests
 (181) 106
 75
 
Net Income Attributable to NRG Energy, Inc.$997
 $317
 $268
 $(1,314) $268
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME
For the Year Ended December 31, 2018
 Guarantor Subsidiaries Non-Guarantor Subsidiaries 
NRG Energy, Inc.
(Note Issuer)
 
Eliminations(a)
 Consolidated Balance
 (In millions)
Net Income$997
 $136
 $374
 $(1,239) $268
Other Comprehensive Income, net of tax         
Unrealized gain on derivatives, net
 29
 9
 (15) 23
Foreign currency translation adjustments, net(10) (10) (13) 22
 (11)
Available-for-sale securities, net
 
 1
 
 1
Defined benefit plan, net(9) 
 (35) 9
 (35)
Other comprehensive (loss)/income(19) 19
 (38) 16
 (22)
Comprehensive Income978
 155
 336
 (1,223) 246
Less: Comprehensive (loss)/income attributable to noncontrolling interests and redeemable noncontrolling interests
 (166)
104

76
 14
Comprehensive Income Attributable to NRG Energy, Inc.$978
 $321
 $232
 $(1,299) $232
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING BALANCE SHEETS
December 31, 2018
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 NRG Energy, Inc. 
Eliminations (a)
 Consolidated Balance
 (In millions)
ASSETS         
Current Assets         
Cash and cash equivalents$55
 $28
 $480
 $
 $563
Funds deposited by counterparties33
 
 
 
 33
Restricted cash7
 10
 
 
 17
Accounts receivable - trade894
 82
 43
 
 1,019
Inventory278
 134
 
 
 412
Derivative instruments779
 50
 16
 (81) 764
Cash collateral posted in support of energy risk management activities275
 12
 
 
 287
Accounts receivable - affiliate460
 33
 266
 (754) 5
Prepayments and other current assets180
 32
 90
 
 302
Current assets - held-for-sale
 1
 
 
 1
Current assets - discontinued operations177
 20
 
 
 197
     Total current assets3,138
 402
 895
 (835) 3,600
Property, plant and equipment, net1,938
 957
 153
 
 3,048
Other Assets         
Investment in subsidiaries446
 
 4,707
 (5,153) 
Equity investments in affiliates
 412
 
 
 412
Goodwill359
 214
 
 
 573
Intangible assets, net422
 169
 
 
 591
Nuclear decommissioning trust fund663
 
 
 
 663
Derivative instruments296
 4
 22
 (5) 317
Deferred income taxes6
 (143) 183
 
 46
Other non-current assets133
 71
 97
 (12) 289
Non-current assets - held-for-sale
 77
 
 
 77
Non-current assets - discontinued operations405
 607
 
 
 1,012
    Total other assets2,730
 1,411
 5,009
 (5,170) 3,980
Total Assets$7,806
 $2,770
 $6,057
 $(6,005) $10,628
LIABILITIES AND STOCKHOLDERS' EQUITY         
Current Liabilities         
Current portion of long-term debt and capital leases$
 $55
 $17
 $
 $72
Accounts payable693
 64
 105
 
 862
Accounts payable - affiliate675
 (249) 329
 (754) 1
Derivative instruments713
 41
 
 (81) 673
Cash collateral received in support of energy risk management activities33
 
 
 
 33
Accrued expenses and other current liabilities291
 36
 353
 
 680
Current liabilities - held-for-sale
 5
 
 
 5
Current liabilities - discontinued operations24
 48
 
 
 72
     Total current liabilities2,429
 
 804
 (835) 2,398
Other Liabilities         
Long-term debt and capital leases244
 192
 6,025
 (12) 6,449
Nuclear decommissioning reserve282
 
 
 
 282
Nuclear decommissioning trust liability371
 
 
 
 371
Postretirement and other benefit obligations114
 1
 320
 
 435
Derivative instruments306
 3
 
 (5) 304
Deferred income taxes112
 61
 (108) 
 65
Out-of-market contracts, net
 121
 
 
 121
Other non-current liabilities288
 198
 232
 
 718
Non-current liabilities - held-for-sale
 65
 
 
 65
Non-current liabilities - discontinued operations58
 577
 
 
 635
     Total non-current liabilities1,775
 1,218
 6,469
 (17) 9,445
Total Liabilities4,204
 1,218
 7,273
 (852) 11,843
Redeemable noncontrolling interest in subsidiaries
 19
 
 
 19
Stockholders' Equity3,602
 1,533
 (1,216) (5,153) (1,234)
Total Liabilities and Stockholders' Equity$7,806
 $2,770
 $6,057
 $(6,005) $10,628
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
For the Year Ended December 31, 2018
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 NRG Energy, Inc. (Note Issuer) 
Eliminations(a)
 
Consolidated
Balance
 (In millions)
Cash Flows from Operating Activities         
Net income$997
 $136
 $374
 $(1,239) $268
Income/(loss) from discontinued operations62
 75
 (329) 
 (192)
Net income from continuing operations935
 61
 703
 (1,239) 460
Adjustments to reconcile net income to net cash provided by operating activities:
 
 
 
 
Distributions and equity in earnings of unconsolidated affiliates
 47
 (1) 
 46
Depreciation, amortization and accretion266
 160
 33
 
 459
Provision for bad debts79
 6
 
 
 85
Amortization of nuclear fuel48
 
 
 
 48
Amortization of financing costs and debt discount/premiums
 6
 23
 
 29
Adjustment for debt extinguishment
 
 44
 
 44
Amortization of intangibles and out-of-market contracts36
 9
 
 
 45
Amortization of unearned equity compensation
 
 25
 
 25
Net (gain)/loss on sale of assets and equity/cost method investments(30) (20) 1
 
 (49)
Impairment losses5
 109
 
 
 114
Changes in derivative instruments25
 15
 11
 (14) 37
Changes in deferred income taxes and liability for uncertain tax benefits372
 5
 (372) 
 5
Changes in collateral deposits in support of energy risk management activities(94)
(11) 
 
 (105)
Changes in nuclear decommissioning trust liability60
 
 
 
 60
GenOn settlement, net of insurance proceeds
 
 (63) 
 (63)
Net loss on deconsolidation of Agua Caliente and Ivanpah projects
 13
 
 
 13
Changes in other working capital311
 (193) (1,621) 1,253
 (250)
Cash provided/(used) by continuing operations2,013
 207
 (1,217) 
 1,003
Cash provided by discontinued operations89
 285
 
 
 374
Net Cash Provided/(Used) by Operating Activities2,102
 492
 (1,217) 
 1,377
Cash Flows from Investing Activities
 
 
 

  
Acquisition of businesses, net of cash acquired(40) (203) 
 
 (243)
Capital expenditures(192) (151) (45) 
 (388)
Net proceeds from sale of emission allowances19
 
 
 
 19
Investments in nuclear decommissioning trust fund securities(572) 
 
 
 (572)
Proceeds from sales of nuclear decommissioning trust fund securities513
 
 
 
 513
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees14
 8
 1,542
 
 1,564
Deconsolidation of Agua Caliente and Ivanpah projects
 (268) 
 
 (268)
Changes in investments in unconsolidated affiliates
 (39) 
 
 (39)
Net (contributions to)/distributions from discontinued operations
 (60) 
 
 (60)
Other
 
 (6) 
 (6)
Cash (used)/provided by continuing operations(258) (713) 1,491
 
 520
Cash used by discontinued operations
 (725) 
 
 (725)
Net Cash (Used)/Provided by Investing Activities(258) (1,438) 1,491
 
 (205)
Cash Flows from Financing Activities

  
  
    
Payments (for)/from intercompany loans(1,701) 113
 1,588
 
 
Payments of dividends to preferred and common stockholders
 
 (37) 
 (37)
Payments for treasury stock
 
 (1,250) 
 (1,250)
Payments for debt extinguishment costs
 
 (32) 
 (32)
Net distributions to noncontrolling interests from subsidiaries
 (16) 
 
 (16)
Proceeds from issuance of common stock
 
 21
 
 21
Proceeds from issuance of long-term debt
 163
 937
 
 1,100
Payments of debt issuance costs
 
 (19) 
 (19)
Payments for short and long-term debt
 (138) (1,596) 
 (1,734)
Receivable from affiliate
 
 (26) 
 (26)
Other
 (4) 
 
 (4)
Cash (used)/provided by continuing operations(1,701) 118
 (414) 
 (1,997)
Cash provided by discontinued operations
 471
 
 
 471
Net Cash (Used)/Provided by Financing Activities(1,701) 589
 (414) 
 (1,526)
Effect of exchange rate changes on cash and cash equivalents
 1
 
 
 1
Change in cash from discontinued operations89
 31
 
 
 120
Net Increase/(Decrease) in Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties54
 (387) (140) 
 (473)
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties at Beginning of Period41
 425
 620
 
 1,086
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties at End of Period$95
 $38
 $480
 $
 $613
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
For the Year Ended December 31, 2017
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 
NRG Energy, Inc.
(Note Issuer)
 
Eliminations (a)
 
Consolidated
Balance
 (In millions)
Operating Revenues         
Total operating revenues$7,818
 $1,304
 $
 $(48) $9,074
Operating Costs and Expenses
 
 
 
  
Cost of operations5,998
 862
 72
 (46) 6,886
Depreciation and amortization343
 221
 32
 
 596
Impairment losses1,346
 188
 
 
 1,534
Selling, general and administrative410
 64
 364
 (2) 836
Reorganization costs6
 
 38
 
 44
Development costs
 4
 18
 
 22
Total operating costs and expenses8,103
 1,339
 524
 (48) 9,918
Other income - affiliate
 
 87
 
 87
Gain on sale of assets4
 12
 
 
 16
Operating Loss(281) (23) (437) 
 (741)
Other Income/(Expense)  
      
Equity in earnings of consolidated subsidiaries18
 
 28
 (46) 
Equity in losses of unconsolidated affiliates
 (10) (4) 
 (14)
Impairment losses on investments
 (75) (4) 
 (79)
Other income, net9
 14
 28
 
 51
Loss on debt extinguishment, net
 
 (49) 
 (49)
Interest expense(14) (91) (452) 
 (557)
Total other income/(expense)13
 (162) (453) (46) (648)
Loss from Continuing Operations Before Income Taxes(268) (185) (890) (46) (1,389)
Income tax (benefit)/expense(598) (62) 616
 
 (44)
 Income/(Loss) from Continuing Operations330
 (123) (1,506) (46) (1,345)
Income/(Loss) from Discontinued Operations, net of income tax91
 (420) (663) 
 (992)
Net Income/(Loss)421
 (543) (2,169) (46) (2,337)
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests
 (168) (16) 
 (184)
Net Income/(Loss) Attributable to NRG Energy, Inc.$421
 $(375) $(2,153) $(46) $(2,153)
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)
For the Year Ended December 31, 2017
 Guarantor Subsidiaries Non-Guarantor Subsidiaries 
NRG Energy, Inc.
(Note Issuer)
 
Eliminations(a)
 Consolidated Balance
 (In millions)
Net Income/(Loss)$421
 $(543) $(2,169) $(46) $(2,337)
Other Comprehensive Income/(Loss), net of tax         
Unrealized gain on derivatives, net1
 13
 25
 (26) 13
Foreign currency translation adjustments, net6
 7
 
 (1) 12
Available-for-sale securities, net
 
 (8) 
 (8)
Defined benefit plan, net(13) 30
 41
 (12) 46
Other comprehensive (loss)/income(6) 50
 58
 (39) 63
Comprehensive Income/(Loss)415
 (493) (2,111) (85) (2,274)
Less: Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interests
 (103) (16) (60) (179)
Comprehensive Income/(Loss) Attributable to NRG Energy, Inc.$415
 $(390) $(2,095) $(25) $(2,095)
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING BALANCE SHEETS
December 31, 2017
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 NRG Energy, Inc. 
Eliminations (a)
 
Consolidated
Balance
 (In millions)
ASSETS         
Current Assets         
Cash and cash equivalents$
 $150
 $620
 $
 $770
Funds deposited by counterparties37
 
 
 
 37
Restricted cash4
 275
 
 
 279
Accounts receivable - trade852
 44
 4
 
 900
Inventory307
 146
 
 
 453
Derivative instruments647
 24
 10
 (57) 624
Cash collateral posted in support of energy risk management activities170
 1
 
 
 171
Accounts receivable - affiliate685
 183
 (154) (534) 180
Prepayments and other current assets106
 30
 27
 
 163
Current assets - held-for-sale8
 108
 
 
 116
Current assets - discontinued operations89
 655
 
 
 744
Total current assets2,905
 1,616
 507
 (591) 4,437
Property, plant and equipment, net2,052
 3,689
 237
 (4) 5,974
Other Assets         
Investment in subsidiaries266
 
 8,234
 (8,500) 
Equity investments in affiliates
 181
 1
 
 182
Goodwill359
 180
 
 
 539
Intangible assets, net455
 55
 
 (3) 507
Nuclear decommissioning trust fund692
 
 
 
 692
Derivative instruments126
 2
 31
 
 159
Deferred income taxes377
 (135) (236) 
 6
Other non-current assets64
 126
 120
 
 310
Non-current assets - held for sale
 43
 
 
 43
Non-current assets - discontinued operations456
 10,072
 
 (22) 10,506
Total other assets2,795
 10,524
 8,150
 (8,525) 12,944
Total Assets$7,752
 $15,829
 $8,894
 $(9,120) $23,355
LIABILITIES AND STOCKHOLDERS' EQUITY         
Current Liabilities         
Current portion of long-term debt and capital leases$
 $183
 $21
 $
 $204
Accounts payable582
 47
 55
 
 684
Accounts payable - affiliate725
 (310) 176
 (534) 57
Derivative instruments556
 38
 ���
 (57) 537
Cash collateral received in support of energy risk management activities37
 
 
 
 37
Accrued expenses and other current liabilities313
 67
 376
 
 756
Accrued expenses and other current liabilities - affiliate
 
 161
 
 161
Current liabilities - held-for-sale
 72
 
 
 72
Current liabilities - discontinued operations34
 807
 5
 
 846
Total current liabilities2,247
 904
 794
 (591) 3,354
Other Liabilities         
Long-term debt and capital leases244
 2,197
 6,739
 
 9,180
Nuclear decommissioning reserve269
 
 
 
 269
Nuclear decommissioning trust liability415
 
 
 
 415
Postretirement and other benefit obligations118
 1
 339
 
 458
Derivative instruments136
 7
 
 
 143
Deferred income taxes112
 64
 (155) 
 21
Out-of-market contracts, net
 129
 
 
 129
Other non-current liabilities284
 198
 52
 
 534
Non-current liabilities - held-for-sale
 8
 
 
 8
Non-current liabilities - discontinued operations73
 6,725
 
 
 6,798
Total non-current liabilities1,651
 9,329
 6,975
 
 17,955
Total Liabilities3,898
 10,233
 7,769
 (591) 21,309
Redeemable noncontrolling interest in subsidiaries
 78
 
 
 78
Stockholders' Equity3,854
 5,518
 1,125
 (8,529) 1,968
Total Liabilities and Stockholders' Equity$7,752
 $15,829
 $8,894
 $(9,120) $23,355
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
For the Year Ended December 31, 2017
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 NRG Energy, Inc. (Note Issuer) 
Eliminations(a)
 
Consolidated
Balance
 (In millions)
Cash Flows from Operating Activities         
Net income/(loss)$421
 $(543) $(2,169) $(46) $(2,337)
Income/(loss) from discontinued operations91
 (420) (663) 
 (992)
Net income/(loss) from continuing operations330
 (123) (1,506) (46) (1,345)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:         
Distributions and equity in earnings of unconsolidated affiliates
 12
 90
 
 102
Depreciation, amortization and accretion343
 221
 32
 
 596
Provision for bad debts56
 
 12
 
 68
Amortization of nuclear fuel51
 
 
 
 51
Amortization of financing costs and debt discount/premiums
 13
 16
 
 29
Adjustment for debt extinguishment
 
 49
 
 49
Amortization of intangibles and out-of-market contracts42
 12
 
 
 54
Amortization of unearned equity compensation
 
 35
 
 35
Net loss/(gain) on sale of assets and equity/cost method investments2
 (11) 
 
 (9)
Impairment losses1,346
 264
 4
 
 1,614
Changes in derivative instruments(214) 50
 (4) (2) (170)
Changes in deferred income taxes and liability for uncertain tax benefits(300) (9) 322
 
 13
Changes in collateral deposits in support of energy risk management activities(98) 18
 
 
 (80)
Changes in nuclear decommissioning trust liability11
 
 
 
 11
Changes in other working capital82
 (354) 62
 48
 (162)
Cash provided/(used) by continuing operations1,651
 93
 (888) 
 856
Cash provided by discontinued operations116
 638
 
 
 754
Net Cash Provided/(Used) by Operating Activities1,767
 731
 (888) 
 1,610
Cash Flows from Investing Activities         
Acquisition of businesses, net of cash acquired(14) 
 
 
 (14)
Capital expenditures(180) (43) (31) 
 (254)
Proceeds from renewable energy grants
 8
 
 
 8
Net proceeds from sale of emission allowances66
 
 
 
 66
Investments in nuclear decommissioning trust fund securities(512) 
 
 
 (512)
Proceeds from sales of nuclear decommissioning trust fund securities501
 
 
 
 501
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees33
 54
 343
 
 430
Changes in investments in unconsolidated affiliates
 (57) 
 
 (57)
Net distributions from discontinued operations
 
 150
 
 150
Other18
 4
 
 
 22
Cash (used)/provided by continuing operations(88) (34) 462
 
 340
Cash used by discontinued operations(13) (966) 
 
 (979)
Net Cash (Used)/Provided by Investing Activities(101) (1,000) 462
 
 (639)
Cash Flows from Financing Activities   
  
    
Payments (for)/from intercompany loans(1,525) (39) 1,564
 
 
Payment of dividends to preferred and common stockholders
 
 (38) 
 (38)
Payments for debt extinguishment costs
 
 (42) 
 (42)
Net distributions to noncontrolling interests from subsidiaries
 (30) 
 
 (30)
Payments for issuance of common stock
 
 (2) 
 (2)
Proceeds from issuance of long-term debt
 94
 1,084
 
 1,178
Payment of debt issuance costs
 (2) (16) 
 (18)
Payments for short and long-term debt
 (183) (1,701) 
 (1,884)
Receivable from affiliate
 
 (125) 
 (125)
Other
 (8) 
 
 (8)
Cash (used)/provided by continuing operations(1,525) (168) 724
 
 (969)
Cash used by discontinued operations(109) (60) 
 
 (169)
Net Cash (Used)/Provided by Financing Activities(1,634) (228) 724
 
 (1,138)
Effect of exchange rate changes on cash and cash equivalents
 (1) 
 
 (1)
Change in cash from discontinued operations(6) (388) 
 
 (394)
Net Increase/(Decrease) in Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties38
 (110) 298
 
 226
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties at Beginning of Period3
 535
 322
 
 860
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties at End of Period$41
 $425
 $620
 $
 $1,086
(a) All significant intercompany transactions have been eliminated in consolidation


NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
For the Year Ended December 31, 2016
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 NRG Energy, Inc. 
Eliminations (a)
 
Consolidated
Balance
 (In millions)
Operating Revenues         
Total operating revenues$7,539
 $1,450
 $
 $(74) $8,915
Operating Costs and Expenses         
Cost of operations5,581
 1,116
 59
 (80) 6,676
Depreciation and amortization500
 230
 26
 
 756
Impairment losses370
 113
 
 
 483
Selling, general and administrative430
 144
 458
 
 1,032
Development costs
 18
 30
 
 48
Total operating costs and expenses6,881
 1,621
 573
 (80) 8,995
Other income - affiliate
 
 193
 
 193
Loss on sale of assets(1) 
 (79) 
 (80)
Operating Income/(Loss)657
 (171) (459) 6
 33
Other (Expense)/Income         
Equity in (losses)/earnings of consolidated subsidiaries(50) 
 374
 (324) 
Equity in earnings/(losses) of unconsolidated affiliates5
 (9) (4) (10) (18)
Impairment losses on investments
 (252) (16) 
 (268)
Other income, net5
 15
 27
 
 47
Net loss on debt extinguishment
 (4) (138) 
 (142)
Interest expense(15) (85) (483) 
 (583)
Total other expense(55) (335) (240) (334) (964)
Income/(Loss) from Continuing Operations Before Income Taxes602
 (506) (699) (328) (931)
Income tax (benefit)/expense(1) 28
 (2) 
 25
Income/(Loss) from Continuing Operations603
 (534) (697) (328) (956)
Income/(Loss) from Discontinued Operations, net of income tax86
 
 (21) 
 65
Net Income/(Loss)689
 (534) (718) (328) (891)
Less: Net (loss)/income attributable to noncontrolling interests and redeemable noncontrolling interests
 (169) 56
 (4) (117)
Net Income/(Loss) Attributable to NRG Energy, Inc.$689
 $(365) $(774) $(324) $(774)
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)
For the Year Ended December 31, 2016
 Guarantor Subsidiaries Non-Guarantor Subsidiaries 
NRG Energy, Inc.
(Note Issuer)
 
Eliminations(a)
 Consolidated Balance
 (In millions)
Net Income/(Loss)$689
 $(534) $(718) $(328) $(891)
Other Comprehensive Income/(Loss), net of tax         
Unrealized gain on derivatives, net
 32
 89
 (86) 35
Foreign currency translation adjustments, net(1) (1) (1) 2
 (1)
Available-for-sale securities, net
 
 1
 
 1
Defined benefit plan, net44
 (13) (51) 23
 3
Other comprehensive income43
 18
 38
 (61) 38
Comprehensive Income/(Loss)732
 (516) (680) (389) (853)
Less: Comprehensive (loss)/income attributable to noncontrolling interest
 (103) 56
 (70) (117)
Comprehensive Income/(Loss) Attributable to NRG Energy, Inc.732
 (413) (736) (319) (736)
Dividends for preferred shares
 
 5
 
 5
Gain on redemption of preferred shares
 
 (78) 
 (78)
Comprehensive Income/(Loss) Available for Common Stockholders$732
 $(413) $(663) $(319) $(663)
(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
For the Year Ended December 31, 2016
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 NRG Energy, Inc. (Note Issuer) 
Eliminations(a)
 
Consolidated
Balance
 (In millions)
Cash Flows from Operating Activities         
Net income/(loss)$689
 $(534) $(718) $(328) $(891)
Income/(loss) from discontinued operations86
 
 (21) 
 65
Net income/(loss) from continuing operations603
 (534) (697) (328) (956)
Adjustments to reconcile net income/(loss) to net cash provided/(used) by operating activities:         
Distributions and equity in earnings of unconsolidated affiliates(5) (14) 86
 
 67
Depreciation, amortization and accretion508
 238
 26
 
 772
Provision for bad debts42
 3
 
 
 45
Amortization of nuclear fuel49
 
 
 
 49
Amortization of financing costs and debt discount/premiums
 13
 20
 
 33
Adjustment for debt extinguishment
 4
 138
 
 142
Amortization of intangibles and out-of-market contracts56
 12
 
 
 68
Amortization of unearned equity compensation
 
 10
 
 10
Net loss on sale of assets and equity/cost method investments70
 
 69
 
 139
Impairment losses370
 365
 16
 
 751
Changes in derivative instruments28
 21
 (36) 3
 16
Changes in deferred income taxes and liability for uncertain tax benefits(1) 49
 (60) 
 (12)
Changes in collateral deposits in support of energy risk management activities384
 12
 
 
 396
Changes in nuclear decommissioning trust liability41
 
 
 
 41
Changes in other working capital(139) (54) (256) 325
 (124)
Cash provided/(used) by continuing operations2,006
 115
 (684) 
 1,437
Cash provided by discontinued operations174
 297
 
 
 471
Net Cash Provided/(Used) by Operating Activities2,180
 412
 (684) 
 1,908
Cash Flows from Investing Activities         
Acquisition of business, net of cash acquired
 
 
 
 
Capital expenditures(172) (326) (46) 
 (544)
Proceeds from renewable energy grants
 36
 
 
 36
Net purchases of emission allowances(1) 
 
 
 (1)
Investments in nuclear decommissioning trust fund securities(551) 
 
 
 (551)
Proceeds from sales of nuclear decommissioning trust fund securities510
 
 
 
 510
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees
 56
 185
 
 241
Changes in investments in unconsolidated affiliates
 (33) 
 
 (33)
Net distributions to discontinued operations
 
 (58) 
 (58)
Other27
 4
 
 
 31
Cash (used)/provided by continuing operations(187) (263) 81
 
 (369)
Cash used by discontinued operations(9) (379) 
 
 (388)
Net Cash (Used)/Provided by Investing Activities(196) (642) 81
 
 (757)
Cash Flows from Financing Activities   
  
    
Payments (for)/from intercompany loans(1,856) 375
 1,481
 
 
Payment of dividends to preferred and common stockholders
 
 (76) 
 (76)
Payment for preferred shares
 
 (226) 
 (226)
Payments for debt extinguishment costs
 
 (121) 
 (121)
Net distributions to noncontrolling interest from subsidiaries
 (27) 
 
 (27)
Proceeds from issuance of common stock
 
 1
 
 1
Proceeds from issuance of long-term debt
 271
 4,141
 
 4,412
Payments of debt issuance costs
 
 (61) 
 (61)
Payments for short and long-term debt(2) (221) (4,923) 
 (5,146)
Other(3) (4) 
 
 (7)
Cash (used)/provided by continuing operations(1,861) 394
 216
 
 (1,251)
Cash (used)/provided by discontinued operations(163) 646
 
 
 483
Net Cash (Used)/Provided by Financing Activities(2,024) 1,040
 216
 
 (768)
Effect of exchange rate changes on cash and cash equivalents
 1
 
 
 1
Change in cash from discontinued operations2
 564
 
 
 566
Net (Decrease)/Increase in Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties(42) 247
 (387) 
 (182)
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties at Beginning of Period45
 288
 709
 
 1,042
Cash and Cash Equivalents, Restricted Cash, and Funds Deposited by Counterparties at End of Period$3
 $535
 $322
 $
 $860
(a) All significant intercompany transactions have been eliminated in consolidation


SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS
For the Years Ended December 31, 2018, 2017,2021, 2020 and 20162019
(In millions)
Balance at
Beginning of
Period
Charged to
Costs and
Expenses
Charged to
Other Accounts
Deductions
Balance at
End of Period
Allowance for credit losses, deducted from accounts receivable     
Year Ended December 31, 2021$67 $698 $112 $(194)(a)$683 
Year Ended December 31, 202043 108 — (84)(a)67 
Year Ended December 31, 201932 95 — (84)(a)43 
Income tax valuation allowance, deducted from deferred tax assets      
Year Ended December 31, 2021$266 $(29)$11 $— $248 
Year Ended December 31, 2020242 24 — — 266 
Year Ended December 31, 20193,794 (3,543)(9)— 

242 
(a) Represents principally net amounts charged as uncollectible

158
 
Balance at
Beginning of
Period
 
Charged to
Costs and
Expenses
 
Charged to
Other Accounts
 Deductions 
Balance at
End of Period
 (In millions)
Allowance for doubtful accounts, deducted from accounts receivable         
Year Ended December 31, 2018$28
 $83
 $
 $(79)
(a) 
$32
Year Ended December 31, 201728
 57
 
 (57)
(a) 
28
Year Ended December 31, 201621
 55
 
 (48)
(a) 
28
Income tax valuation allowance, deducted from deferred tax assets         
Year Ended December 31, 2018$1,863
 $1,934
 $(128) $125
(b) 
$3,794
Year Ended December 31, 20174,116
 (151) (15) (2,087)
(c) 
1,863
Year Ended December 31, 20163,575
 306
 235
 
 4,116


EXHIBIT INDEX
(a)Represents principally net amounts charged as uncollectible
(b)Represents removal of NRG Yield, Inc. and its Renewables Platform due to their sale on August 31, 2018
(c)Represents deconsolidation of GenOn due to its petition for bankruptcy on June 14, 2017

EXHIBIT INDEX
NumberDescriptionMethod of Filing
2.1Incorporated herein by reference to Exhibit 99.1 to the Registrant's current report on Form 8-K filed on November 19, 2003.
2.2Incorporated herein by reference to Exhibit 99.2 to the Registrant's current report on Form 8-K filed on November 19, 2003.
2.3Incorporated herein by reference to Exhibit 2.1 to the Registrant's current report on Form 8-K filed on October 3, 2005.
2.4Incorporated herein by reference to Exhibit 2.2 to Amendment No. 1 to the Registrant’s current report on Form 8-K filed on October 21, 2013.
2.5Incorporated herein by reference to Exhibit 2.1 to the Registrant's current report on Form 8-K filed on December 18, 2017.
2.6†^Incorporated herein by reference to Exhibit 2.9 to the Registrant's annual report on Form 10-K filed on March 1, 2018.
2.7^Incorporated herein by reference to Exhibit 2.10 to the Registrant's annual report on Form 10-K filed on March 1, 2018.
3.12.8‡Incorporated herein by reference to Exhibit 2.1 to the Registrant's quarterly report on Form 10-Q filed on May 6, 2021.
3.1Incorporated herein by reference to Exhibit 3.1 to the Registrant's quarterly report on Form 10-Q filed on May 3, 2012.
3.2Incorporated herein by reference to Exhibit 3.1 to the Registrant's current report on Form 8-K filed on December 14, 2012.
3.3Incorporated herein by reference to Exhibit 3.1 to the Registrant's current report on Form 8-K filed on February 13, 2017.Filed herewith.
4.1Incorporated herein by reference to Exhibit 10.1 to the Registrant's current report on Form 8-K filed on January 4, 2006.
4.2Incorporated herein by reference to Exhibit 4.3 to the Registrant's quarterly report on Form 10-Q filed on August 4, 2006.
4.3Incorporated herein by reference to Exhibit 4.1 to the Registrant's current report on Form 8-K filed on February 6, 2006.
4.4Incorporated herein by reference to Exhibit 4.1 to the Registrant's current report on Form 8-K filed on August 20, 2010.
4.5Incorporated herein by reference to Exhibit 4.2 to the Registrant's current report on Form 8-K filed on August 20, 2010.
4.6Incorporated herein by reference to Exhibit 10.1 to the Registrant's current report on Form 8-K filed on August 20, 2010.
4.7Incorporated herein by reference to Exhibit 4.5 to the Registrant's current report on Form 8-K filed on December 16, 2010.
4.8Incorporated herein by reference to Exhibit 4.4 to the Registrant's current report on Form 8-K filed on May 25, 2011.

4.9Incorporated herein by reference to Exhibit 4.5 to the Registrant's current report on Form 8-K filed on May 25, 2011.
4.10Incorporated herein by reference to Exhibit 4.3 to the Registrant's current report on Form 8-K filed on May 25, 2011.
4.11Incorporated herein by reference to Exhibit 4.4 to the Registrant's current report on Form 8-K filed on May 25, 2011.
4.12Incorporated herein by reference to Exhibit 4.5 to the Registrant's current report on Form 8-K filed on May 25, 2011.
4.13Incorporated herein by reference to Exhibit 4.3 to the Registrant's current report on Form 8-K filed on November 8, 2011.
4.14Incorporated herein by reference to Exhibit 4.4 to the Registrant's current report on Form 8-K filed on November 8, 2011.
4.15Incorporated herein by reference to Exhibit 4.6 to the Registrant's current report on Form 8-K filed on November 8, 2011.
4.16Incorporated herein by reference to Exhibit 4.3 to the Registrant's current report on Form 8-K filed on April 6, 2012.
4.17Incorporated herein by reference to Exhibit 4.4 to the Registrant's current report on Form 8-K filed on April 6, 2012.
4.18Incorporated herein by reference to Exhibit 4.6 to the Registrant's current report on Form 8-K filed on April 6, 2012.
4.19Incorporated herein by reference to Exhibit 4.3 to the Registrant's current report on Form 8-K filed on May 11, 2012.
4.20Incorporated herein by reference to Exhibit 4.4 to the Registrant's current report on Form 8-K filed on May 11, 2012.
4.21Incorporated herein by reference to Exhibit 4.6 to the Registrant's current report on Form 8-K filed on May 11, 2012.
4.22Incorporated herein by reference to Exhibit 4.1 to the Registrant's current report on Form 8-K filed on September 24, 2012.

4.2
4.23Incorporated herein by reference to Exhibit 4.2 to the Registrant's current report on Form 8-K filed on September 24, 2012.
4.24Incorporated herein by reference to Exhibit 4.2 to the Registrant's current report on Form 8-K filed on October 12, 2012.
4.25Incorporated herein by reference to Exhibit 4.3 to the Registrant's current report on Form 8-K filed on October 12, 2012.
4.26Incorporated herein by reference to Exhibit 4.5 to the Registrant's current report on Form 8-K filed on October 12, 2012.
4.27Incorporated herein by reference to Exhibit 4.6 to the Registrant's current report on Form 8-K filed on October 12, 2012.
4.28Incorporated herein by reference to Exhibit 4.2 to the Registrant’s current report on Form 8-K filed on January 9, 2013.
4.29Incorporated herein by reference to Exhibit 4.3 to the Registrant’s current report on Form 8-K filed on January 9, 2013.
4.30Incorporated herein by reference to Exhibit 4.5 to the Registrant’s current report on Form 8-K filed on January 9, 2013.
4.31Incorporated herein by reference to Exhibit 4.6 to the Registrant’s current report on Form 8-K filed on January 9, 2013.
4.32Incorporated herein by reference to Exhibit 4.2 to the Registrant’s current report on Form 8-K filed on March 13, 2013.
4.33Incorporated herein by reference to Exhibit 4.3 to the Registrant’s current report on Form 8-K filed on March 13, 2013.
4.34Incorporated herein by reference to Exhibit 4.5 to the Registrant’s current report on Form 8-K filed on March 13, 2013.
4.35Incorporated herein by reference to Exhibit 4.6 to the Registrant’s current report on Form 8-K filed on March 13, 2013.
4.36Incorporated herein by reference to Exhibit 4.7 to the Registrant’s current report on Form 8-K filed on March 13, 2013.
4.37Incorporated herein by reference to Exhibit 4.2 to the Registrant’s current report on Form 8-K filed on May 3, 2013.
4.38Incorporated herein by reference to Exhibit 4.3 to the Registrant’s current report on Form 8-K filed on May 3, 2013.

4.39Incorporated herein by reference to Exhibit 4.5 to the Registrant’s current report on Form 8-K filed on May 3, 2013.
4.40Incorporated herein by reference to Exhibit 4.6 to the Registrant’s current report on Form 8-K filed on May 3, 2013.
4.41Incorporated herein by reference to Exhibit 4.2 to the Registrant’s current report on Form 8-K filed on September 6, 2013.
4.42Incorporated herein by reference to Exhibit 4.3 to the Registrant’s current report on Form 8-K filed on September 6, 2013.
4.43Incorporated herein by reference to Exhibit 4.5 to the Registrant’s current report on Form 8-K filed on September 6, 2013.
4.44Incorporated herein by reference to Exhibit 4.6 to the Registrant’s current report on Form 8-K filed on September 6, 2013.
4.45Incorporated herein by reference to Exhibit 4.2 to the Registrant’s current report on Form 8-K filed on October 8, 2013.
4.46Incorporated herein by reference to Exhibit 4.3 to the Registrant’s current report on Form 8-K filed on October 8, 2013.
4.47Incorporated herein by reference to Exhibit 4.5 to the Registrant’s current report on Form 8-K filed on October 8, 2013.
4.48Incorporated herein by reference to Exhibit 4.6 to the Registrant’s current report on Form 8-K filed on October 8, 2013.
4.49Incorporated herein by reference to Exhibit 4.1 to the Registrant’s current report on Form 8-K filed on November 13, 2013.
4.50Incorporated herein by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed on January 27, 2014.
4.51Incorporated herein by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K filed on January 27, 2014.
4.52Incorporated herein by reference to Exhibit 4.3 to the Company's Current Report on Form 8-K filed on January 27, 2014.
4.53Incorporated herein by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed on March 28, 2014.

4.54Incorporated herein by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed on April 21, 2014.
4.55Incorporated herein by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K filed on April 21, 2014.
4.56Incorporated herein by reference to Exhibit 4.3 to the Company's Current Report on Form 8-K filed on April 21, 2014.
4.57Incorporated herein by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed on May 2, 2014.
4.58Incorporated herein by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K filed on May 2, 2014.
4.59Incorporated herein by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed on October 3, 2014.
4.60Incorporated herein by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K filed on October 3, 2014.
4.61
Incorporated herein by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed on November 14, 2014.

4.62Incorporated herein by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K filed on November 14, 2014.
4.63
Incorporated herein by reference to Exhibit 4.1 to the Registrant's current report on Form 8-K filed on November 25, 2014.

4.64

Incorporated herein by reference to Exhibit 4.2 to the Registrant's current report on Form 8-K filed on November 25, 2014.

4.65Incorporated herein by reference to Exhibit 4.1 to the Company's current report on Form 8-K filed on April 9, 2015.
4.66Incorporated herein by reference to Exhibit 4.2 to the Company's current report on Form 8-K filed on April 9, 2015.
4.67Incorporated herein by reference to Exhibit 4.1 to the Company's current report on Form 8-K filed on April 30, 2015.
4.68Incorporated herein by reference to Exhibit 4.2 to the Company's current report on Form 8-K filed on April 30, 2015.
4.69Incorporated herein by reference to Exhibit 4.1 to the Company's current report on Form 8-K filed on May 22, 2015.

4.70Incorporated herein by reference to Exhibit 4.2 to the Company's current report on Form 8-K filed on May 22, 2015.
4.71Incorporated herein by reference to Exhibit 4.1 to the Company's current report on Form 8-K filed on November 2, 2015.
4.72Incorporated herein by reference to Exhibit 4.2 to the Company's current report on Form 8-K filed on November 2, 2015.
4.73

Incorporated herein by reference to Exhibit 4.1 to the Registrant's Current Report on Form 8-K, filed on May 23, 2016.
4.74Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K, filed on May 23, 2016.
4.75

Incorporated herein by reference to Exhibit 4.3 to the Registrant's Current Report on Form 8-K, filed on May 23, 2016.
4.76
Incorporated herein by reference to Exhibit 4.4 to the Registrant's Current Report on Form 8-K, filed on May 23, 2016.

4.77Incorporated herein by reference to Exhibit 4.1 to the Registrant's Current Report on Form 8-K, filed on July 25, 2016.
4.78Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K, filed on July 25, 2016.
4.79Incorporated herein by reference to Exhibit 4.3 to the Registrant's Current Report on Form 8-K, filed on July 25, 2016.
4.804.3Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K, filed on August 3, 2016.
4.814.4


Incorporated herein by reference to Exhibit 4.3 to the Registrant's Current Report on Form 8-K, filed on August 3, 2016.
4.824.5Incorporated herein by reference to Exhibit 4.4 to the Registrant's Current Report on Form 8-K, filed on August 3, 2016.
4.834.6Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K, filed on December 8, 2017.
4.844.7Incorporated herein by reference to Exhibit 4.3 to the Registrant's Current Report on Form 8-K, filed on December 8, 2017.
4.854.8
Incorporated herein by reference to Exhibit 4.4 to the Registrant's Current Report on Form 8-K, filed on December 8, 2017.


4.864.9



Incorporated herein by reference to Exhibit 4.1 to the Registrant's Current Report on Form 8-K, filed on May 25, 2018.
159



4.874.10
Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K, filed on May 25, 2018.



4.11 
10.1*Incorporated herein by reference to Exhibit 10.144.15 to the Registrant's annual reportAnnual Report on Form 10-K, filed on March 30, 2005.February 27, 2020.
10.2*4.12 Incorporated herein by reference to Exhibit 10.154.1 to the Registrant's annual report on Form 10-K filed on March 30, 2005.
10.3*Incorporated herein by reference to Exhibit 10.1 to the Registrant's quarterly report on Form 10-Q filed on November 9, 2004.
10.4*Incorporated herein by reference to Exhibit 10.6 to the Registrant's annual report on Form 10-K filed on March 1, 2018.
10.5*

Incorporated herein by reference to Exhibit 10.7 to the Registrant's annual report on Form 10-K filed on March 1, 2018.
10.6*Incorporated herein by reference to Exhibit 10.7 to the Registrant's annual report on Form 10-K filed on February 23, 2010.
10.7*Incorporated herein by reference to Exhibit 10.1 to the Registrant's current reportCurrent Report on Form 8-K, filed on May 7, 2015.December 4, 2020.
10.8†4.13 Incorporated herein by reference to Exhibit 10.1 to the Registrant's quarterly report on Form 10-Q filed on April 30, 2009.
10.9*Incorporated herein by reference to Exhibit 10.1 to the Registrant's current report on Form 8-K filed on April 28, 2017.
10.10Incorporated herein by reference to Exhibit 10.14.2 to the Registrant's current reportCurrent Report on Form 8-K, filed on September 24, 2012.December 4, 2020.
10.11*4.14 Incorporated herein by reference to Exhibit 10.494.3 to the Registrant’s annual reportRegistrant's Current Report on Form 10-K8-K, filed on February 27, 2013.December 4, 2020.
10.12*4.15 Incorporated herein by reference to Exhibit 10.534.4 to the Registrant's annual reportCurrent Report on Form 10-K8-K, filed on February 28, 2014.December 4, 2020.
10.13*4.16 Incorporated herein by reference to Exhibit 10.544.5 to the Registrant's annual reportCurrent Report on Form 10-K8-K, filed on February 28, 2014.December 4, 2020.
10.14*4.17 Incorporated herein by reference to Exhibit 10.24.6 to the Registrant's current reportCurrent Report on Form 8-K, filed on April 28, 2017.December 4, 2020.
10.154.18 Incorporated herein by reference to Exhibit 10.14.7 to the Registrant's current reportCurrent Report on Form 8-K, filed on December 24, 2015.4, 2020.
10.164.19 Incorporated herein by reference to Exhibit 4.8 to the Registrant's Current Report on Form 8-K, filed on December 4, 2020.
4.20 Incorporated herein by reference to Exhibit 4.9 to the Registrant's Current Report on Form 8-K, filed on December 4, 2020.
4.21 Incorporated herein by reference to Exhibit 4.10 to the Registrant's Current Report on Form 8-K, filed on December 4, 2020.
4.22 Incorporated herein by reference to Exhibit 4.11 to the Registrant's Current Report on Form 8-K, filed on December 4, 2020.
4.23 Incorporated herein by reference to Exhibit 4.12 to the Registrant's Current Report on Form 8-K, filed on December 4, 2020.
4.24 Incorporated herein by reference to Exhibit 4.13 to the Registrant's Current Report on Form 8-K, filed on December 4, 2020.
4.25 Incorporated herein by reference to Exhibit 4.14 to the Registrant's Current Report on Form 8-K, filed on December 4, 2020.
4.26 
Incorporated herein by reference to Exhibit 10.1 to the Registrant's quarterly report on Form 10-Q filed on August 9, 2016.


10.174.27 
Incorporated herein by reference to Exhibit 10.2 to the Registrant's quarterly report on Form 10-Q filed on August 9, 2016.


10.184.28 Incorporated herein by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on January 24, 2017.
160


10.194.29 

Incorporated herein by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on March 22, 2018.
4.30 

Incorporated herein by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on May 7, 2018.

4.31 Incorporated herein by reference to Exhibit 4.1 to the Registrant's Current Report on Form 8-K filed on May 23, 2016.
4.32 Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K filed on May 16, 2019.
4.33 Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K filed on May 14, 2019.
4.34 Incorporated herein by reference to Exhibit 4.1 to the Registrant's Current Report on Form 8-K filed on May 30, 2019.
4.35 Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K filed on May 30, 2019.
4.36 Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K filed on May 30, 2019.
4.37 Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K filed on May 30, 2019.
4.38Incorporated herein by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on November 7, 2019.
4.39 Incorporated herein by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on August 21, 2020.
4.40 Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on September 22, 2020.
4.41 Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on September 22, 2020.
4.42 Incorporated herein by reference to Exhibit 4.1 to the Registrant's quarterly report on Form 10-Q filed on May 6, 2021.
4.43 Incorporated herein by reference to Exhibit 4.2 to the Registrant's quarterly report on Form 10-Q filed on May 6, 2021.
161


4.44 Incorporated herein by reference to Exhibit 4.4 to the Registrant's quarterly report on Form 10-Q filed on May 6, 2021.
4.45 Incorporated herein by reference to Exhibit 4.5 to the Registrant's quarterly report on Form 10-Q filed on May 6, 2021.
4.46 Incorporated herein by reference to Exhibit 4.6 to the Registrant's quarterly report on Form 10-Q filed on May 6, 2021.
4.47 Incorporated herein by reference to Exhibit 4.7 to the Registrant's quarterly report on Form 10-Q filed on May 6, 2021.
4.48 Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K, filed on August 23, 2021.
4.49 Incorporated herein by reference to Exhibit 4.3 to the Registrant's Current Report on Form 8-K, filed on August 23, 2021.
4.50 Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K, filed on August 23, 2021.
4.51 Incorporated herein by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K, filed on August 23, 2021.
4.52 Filed herewith.
4.53 Filed herewith.
4.54 Filed herewith.
4.55 Filed herewith.
4.56 Filed herewith.
4.57 Filed herewith.
162


4.58 Filed herewith.
4.59 Filed herewith.
4.60 Filed herewith.
4.61 Filed herewith.
10.1*Incorporated herein by reference to Exhibit 10.15 to the Registrant's annual report on Form 10-K filed on March 30, 2005.
10.2*Incorporated herein by reference to Exhibit 10.6 to the Registrant's annual report on Form 10-K filed on March 1, 2018.
10.3*

Incorporated herein by reference to Exhibit 10.7 to the Registrant's annual report on Form 10-K filed on March 1, 2018.
10.4*Incorporated herein by reference to Exhibit 10.7 to the Registrant's annual report on Form 10-K filed on February 23, 2010.
10.5*Incorporated herein by reference to Exhibit 10.1 to the Registrant's current report on Form 8-K filed on May 7, 2015.
10.6†Incorporated herein by reference to Exhibit 10.1 to the Registrant's quarterly report on Form 10-Q filed on April 30, 2009.
10.7*Incorporated herein by reference to Exhibit 10.1 to the Registrant's current report on Form 8-K filed on April 28, 2017.
10.8*Incorporated herein by reference to Exhibit 10.49 to the Registrant’s annual report on Form 10-K filed on February 27, 2013.
10.9*Incorporated herein by reference to Exhibit 10.53 to the Registrant's annual report on Form 10-K filed on February 28, 2014.
10.10*Incorporated herein by reference to Exhibit 10.54 to the Registrant's annual report on Form 10-K filed on February 28, 2014.
10.11 Incorporated herein by reference to Exhibit 10.1 to the Registrant's current report on Form 8-K filed on December 24, 2015.
10.12 Incorporated herein by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on December 18, 2017.

10.13 
10.20Incorporated herein by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K filed on December 18, 2017.
10.21Incorporated herein by reference to Exhibit 10.3 to the Registrant's Current Report on Form 8-K filed on December 18, 2017.
10.22Incorporated herein by reference to Exhibit 10.4 to the Registrant's Current Report on Form 8-K filed on December 18, 2017.
163


10.2310.14 Incorporated herein by reference to Exhibit 10.5 to the Registrant's Current Report on Form 8-K filed on December 18, 2017.
10.24Incorporated herein by reference to Exhibit 10.5 to the Registrant's Current Report on Form 8-K filed on December 18, 2017.
10.25*10.15*Incorporated herein by reference to Exhibit 10.73 to the Registrant's annual report on Form 10-K filed on March 1, 2018.
10.26*10.16*Incorporated herein by reference to Exhibit 10.74 to the Registrant's annual report on Form 10-K filed on March 1, 2018.
10.27†10.17†Incorporated herein by reference to Exhibit 10.34 to NRG Yield, Inc.'s Annual Report on Form 10-K filed on March 1, 2018.
10.2810.18*

Incorporated herein by reference to Exhibit 10.1 to the Registrant's CurrentQuarterly Report on Form 8-K filed on March 22, 2018.
10.29

Incorporated herein by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K10-Q filed on May 7, 2018.

2, 2019.
10.30*10.19*


Incorporated herein by reference to Exhibit 10.2 to the Registrant's Quarterly Report on Form 10-Q filed on August 2, 2018.


21.110.20 Incorporated herein by reference to Exhibit 4.9 to the Registrant's quarterly report on Form 10-Q filed on August 5, 2021.
10.21*Filed herewith.
10.22*Filed herewith.
10.23*Filed herewith.
21.1Filed herewith.
23.122.1Filed herewith.
23.1Filed herewith.
31.1Filed herewith.
31.2Filed herewith.
31.3Filed herewith.
32Furnished herewith.
101 INSInline XBRL Instance Document.Filed herewith.The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
101 SCHInline XBRL Taxonomy Extension Schema.Filed herewith.
101 CALInline XBRL Taxonomy Extension Calculation Linkbase.Filed herewith.
101 DEFInline XBRL Taxonomy Extension Definition Linkbase.Filed herewith.
101 LABInline XBRL Taxonomy Extension Label Linkbase.Filed herewith.
101 PREInline XBRL Taxonomy Extension Presentation Linkbase.Filed herewith.
104Cover Page Interactive Data File (the cover page interactive data file does not appear in Exhibit 104 because it's Inline XBRL tags are embedded within the Inline XBRL document).Filed herewith.

164


*Exhibit relates to compensation arrangements.


Portions of this exhibit have been redacted and are subject to a confidential treatment request filed with the Secretary of the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended.
^This filing excludes schedules pursuant to Item 601(b)(2) of Regulation S-K, which the registrant agrees to furnish supplementary to the Securities and Exchange Commission upon request by the Commission.
Portions of this exhibit have been excluded because they are both not material and would likely cause competitive harm to the registrant if publicly disclosed. Information that has been omitted has been noted in this document with a placeholder identified by the mark “[***]”.


Item 16. Form 10-K Summary

None.

165
None.



SIGNATURES


Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

NRG ENERGY, INC.
(Registrant)
NRG ENERGY, INC.
(Registrant)
By:
By:/s/ MAURICIO GUTIERREZ
Mauricio Gutierrez
Chief Executive Officer




Date: February 28, 201924, 2022



166


POWER OF ATTORNEY
Each person whose signature appears below constitutes and appoints Brian E. Curci and Christine A. Zoino, each or any of them, such person's true and lawful attorney-in-fact and agent with full power of substitution and resubstitution for such person and in such person's name, place and stead, in any and all capacities, to sign any and all amendments to this report on Form 10-K, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing necessary or desirable to be done in and about the premises, as fully to all intents and purposes as such person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
In accordance with the Exchange Act, this report has been signed by the following persons on behalf of the registrant in the capacities indicated on February 28, 2019.
24, 2022.
SignatureTitleDate
/s/ MAURICIO GUTIERREZ President, Chief Executive Officer andFebruary 28, 201924, 2022
Mauricio GutierrezDirector (Principal Executive Officer)
/s/ KIRKLAND B. ANDREWS ALBERTO FORNAROChief Financial OfficerFebruary 28, 201924, 2022
Kirkland B. AndrewsAlberto Fornaro(Principal Financial Officer)
/s/ DAVID CALLENEMILY PICARELLOChief Accounting OfficerCorporate ControllerFebruary 28, 201924, 2022
David CallenEmily Picarello(Principal Accounting Officer)
/s/ LAWRENCE S. COBENChairmanChair of the BoardFebruary 28, 201924, 2022
Lawrence S. Coben
/s/ E. SPENCER ABRAHAMDirectorFebruary 28, 201924, 2022
E. Spencer Abraham
/s/ ANTONIO CARRILLODirectorFebruary 24, 2022
Antonio Carrillo
/s/ MATTHEW CARTER, JR.DirectorFebruary 28, 201924, 2022
Matthew Carter, Jr.
/s/ HEATHER COXDirectorFebruary 28, 201924, 2022
Heather Cox
/s/ TERRY G. DALLASELISABETH B. DONOHUEDirectorFebruary 28, 201924, 2022
Terry G. DallasElisabeth B. Donohue
/s/ WILLIAM E. HANTKE  DirectorFebruary 28, 2019
William E. Hantke
/s/ PAUL W. HOBBYDirectorFebruary 28, 201924, 2022
Paul W. Hobby
/s/ ALEXANDRA PRUNERDirectorFebruary 24, 2022
Alexandra Pruner
/s/ ANNE C. SCHAUMBURGDirectorFebruary 28, 201924, 2022
Anne C. Schaumburg
/s/ THOMAS H. WEIDEMEYERDirectorFebruary 28, 201924, 2022
Thomas H. Weidemeyer


211
167