10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒	Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
	For the Quarterly Period Ended:	March 31, 2020
☐	Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Commission File Number: 001-15891

NRG Energy, Inc.

(Exact name of registrant as specified in its charter)

Delaware	41-1724239
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

804 Carnegie Center,	Princeton	New Jersey	08540
(Address of principal executive offices)			(Zip Code)

(609) 524-4500

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Trading Symbol(s)	Name of Exchange on Which Registered
Common Stock, par value $0.01	NRG	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☒       No ☐

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 ☒       No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐  

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐       No ☒

As of May 7, 2020, there were 244,087,060 shares of common stock outstanding, par value $0.01 per share.

1

TABLE OF CONTENTS

Index

CAUTIONARY STATEMENT REGARDING FORWARD LOOKING INFORMATION	3
GLOSSARY OF TERMS	5
PART I — FINANCIAL INFORMATION	9
ITEM 1 — CONDENSED CONSOLIDATED FINANCIAL STATEMENTS AND NOTES	9
ITEM 2 — MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	46
ITEM 3 — QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	70
ITEM 4 — CONTROLS AND PROCEDURES	72
PART II — OTHER INFORMATION	73
ITEM 1 — LEGAL PROCEEDINGS	73
ITEM 1A — RISK FACTORS	73
ITEM 2 — UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	74
ITEM 3 — DEFAULTS UPON SENIOR SECURITIES	74
ITEM 4 — MINE SAFETY DISCLOSURES	74
ITEM 5 — OTHER INFORMATION	74
ITEM 6 — EXHIBITS	75
SIGNATURES	76

2

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

This Quarterly Report on Form 10-Q 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 the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the 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 Risk Factors, in Part I, Item 1A of the Company's Annual Report on Form 10-K for the year ended December 31, 2019 and the following:

•NRG'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 liquidity;

•NRG's ability to obtain and maintain retail market share;

•General economic conditions, changes in the wholesale power markets and fluctuations in the cost of fuel;

•Volatile power supply costs and demand for power;

•Changes in law, including judicial 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;

•NRG's ability to engage in successful sales and divestitures as well as mergers and acquisitions activity;

•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 and procure fuel on acceptable terms and prices;

•The liquidity and competitiveness of wholesale markets for energy commodities;

•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, and scarcity pricing in ERCOT;

•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 the indentures governing NRG's Senior Notes, Senior Secured Notes and Senior Credit Facility, and in debt and other agreements of certain of NRG subsidiaries and project affiliates generally;

•Cyber terrorism and inadequate cybersecurity, 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;

•NRG's ability to develop and build new power generation facilities;

•NRG's ability to develop and innovate new products, as retail and wholesale markets continue to change and evolve;

•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 market initiatives, corporate efficiencies, asset strategy, and a range of other programs throughout NRG to reduce costs or generate revenues;

•NRG's ability to successfully evaluate investments and achieve intended financial results in new business and growth initiatives;

•NRG's ability to achieve the expected benefits of its Transformation Plan;

•NRG's ability to successfully integrate, realize cost savings and manage any acquired businesses; and

3

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

Forward-looking statements speak only as of the date they were made and NRG 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 factors that could cause NRG's actual results to differ materially from those contemplated in any forward-looking statements included in this Quarterly Report on Form 10-Q should not be construed as exhaustive.

4

GLOSSARY OF TERMS

When the following terms and abbreviations appear in the text of this report, they have the meanings indicated below:

2019 Form 10-K	NRG’s Annual Report on Form 10-K for the year ended December 31, 2019
2023 Term Loan Facility	The Company's term loan facility due 2023, a component of the Senior Credit Facility, which was repaid during the second quarter of 2019
ACE	Affordable Clean Energy
Agua Caliente	Agua Caliente Solar Project, a 290 MW photovoltaic power station located in Yuma County, Arizona in which NRG owns 35% interest
ARO	Asset Retirement Obligation
ASC	The FASB Accounting Standards Codification, which the FASB established as the source of authoritative GAAP
ASU	Accounting Standards Updates - updates to the ASC
Average realized prices	Volume-weighted average power prices, net of average fuel costs and reflecting the impact of settled hedges
Bankruptcy Code	Chapter 11 of Title 11 the U.S. Bankruptcy Code
Bankruptcy Court	United States Bankruptcy Court for the Southern District of Texas, Houston Division
BRA	Base Residual Auction
BTU	British Thermal Unit
Business Solutions	NRG's business solutions group, which includes demand response, commodity sales, energy efficiency and energy management services
CAA	Clean Air Act
CAISO	California Independent System Operator
CARES Act	Coronavirus Aid, Relief, and Economic Security Act
Carlsbad	Carlsbad Energy Center, a 528 MW natural gas-fired project located in Carlsbad, CA
CCR	Coal Combustion Residuals
CDD	Cooling Degree Day
CDWR	California Department of Water Resources
CFTC	U.S. Commodity Futures Trading Commission
Chapter 11 Cases	Voluntary cases commenced by the GenOn Entities under the Bankruptcy Code in the Bankruptcy Court
C&I	Commercial industrial and governmental/institutional
CES	Clean Energy Standard
Cleco	Cleco Corporate Holdings LLC
CO2	Carbon Dioxide
ComEd	Commonwealth Edison
Company	NRG Energy, Inc.
Convertible Senior Notes	As of March 31, 2020, consists of NRG’s $575 million unsecured 2.75% Convertible Senior Notes due 2048
Cottonwood	Cottonwood Generating Station, a 1,153 MW natural gas-fueled plant
COVID-19	Coronavirus Disease 2019
CPP	Clean Power Plan
CPUC	California Public Utilities Commission
CWA	Clean Water Act
D.C. Circuit	U.S. Court of Appeals for the District of Columbia Circuit
Distributed Solar	Solar power projects that primarily sell power to customers for usage on site, or are interconnected to sell power into a local distribution grid
Economic gross margin	Sum of energy revenue, capacity revenue, retail revenue and other revenue, less cost of fuels and other cost of sales
EGU	Electric Generating Unit
EPA	U.S. Environmental Protection Agency
ERCOT	Electric Reliability Council of Texas, the Independent System Operator and the regional reliability coordinator of the various electricity systems within Texas

5

ESCO	Energy Service Companies
ESPP	NRG Energy, Inc. Amended and Restated Employee Stock Purchase Plan
Exchange Act	The Securities Exchange Act of 1934, as amended
FASB	Financial Accounting Standards Board
FERC	Federal Energy Regulatory Commission
FGD	Flue gas desulfurization
FTRs	Financial Transmission Rights
GAAP	Generally accepted accounting principles in the U.S.
GenOn	GenOn Energy, Inc.
GenOn Entities	GenOn and certain of its wholly owned subsidiaries, including GenOn Americas Generation, that filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the Bankruptcy Court on June 14, 2017
GHG	Greenhouse Gas
GIP	Global Infrastructure Partners
Green Mountain Energy	Green Mountain Energy Company
GWh	Gigawatt Hour
HAP	Hazardous Air Pollutant
HDD	Heating Degree Day
Heat Rate	A 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 upon whether the electricity output measured is gross or net generation. Heat rates are generally expressed as BTU per net kWh
HLW	High-level radioactive waste
ICE	Intercontinental Exchange
ISO	Independent System Operator, also referred to as RTOs
ISO-NE	ISO New England Inc.
Ivanpah	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
kWh	Kilowatt-hour
LaGen	Louisiana Generating, LLC
LIBOR	London Inter-Bank Offered Rate
LTIPs	Collectively, the NRG LTIP and the NRG GenOn LTIP
Mass Market	Residential and small commercial customers
MDth	Thousand Dekatherms
Midwest Generation	Midwest Generation, LLC
MISO	Midcontinent Independent System Operator, Inc.
MMBtu	Million British Thermal Units
MW	Megawatts
MWe	Megawatt equivalent
MWh	Saleable megawatt hour net of internal/parasitic load megawatt-hour
NAAQS	National Ambient Air Quality Standards
NEPOOL	New England Power Pool
NERC	North American Electric Reliability Corporation
NJBPU	New Jersey Board of Public Utilities
Net Exposure	Counterparty credit exposure to NRG, net of collateral
Nodal	Nodal Exchange is a derivatives exchange
NOL	Net Operating Loss
NOx	Nitrogen Oxides
NPDES	National Pollutant Discharge Elimination System
NPNS	Normal Purchase Normal Sale
NRC	U.S. Nuclear Regulatory Commission

6

NRG	NRG Energy, Inc.
NRG Yield, Inc.	NRG Yield, Inc., which changed its name to Clearway Energy, Inc. following the sale by NRG of NRG Yield and the Renewables Platform to GIP
Nuclear Decommissioning Trust Fund	NRG'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 Act	U.S. Nuclear Waste Policy Act of 1982
NY DEC	New York Department of Environmental Conservation
NYISO	New York Independent System Operator
NYMEX	New York Mercantile Exchange
NYSPSC	New York State Public Service Commission
OCI/OCL	Other Comprehensive Income/(Loss)
ORDC	Operating Reserve Demand Curve
Peaking	Units expected to satisfy demand requirements during the periods of greatest or peak load on a system
Petra Nova	Petra Nova Parish Holdings, LLC which is 50% owned by NRG and which owns and operates a 240 MWe carbon capture system and a 78 MW cogeneration facility, and owns an equity interest in an oilfield
PG&E	PG&E Corporation (NYSE: PCG) and its primary operating subsidiary, Pacific Gas and Electric Company
Pipeline	Projects that range from identified lead to shortlisted with an offtake, and represents a lower level of execution certainty
PJM	PJM Interconnection, LLC
PM2.5	Particulate Matter that has a diameter of less than 2.5 micrometers
PPA	Power Purchase Agreement
PUCT	Public Utility Commission of Texas
RCE	Residential Customer Equivalent is a unit of measure used by the energy industry to denote the typical annual commodity consumption by a single-family residential customer. 1 RCE represents 1,000 therms of natural gas or 10,000 kWh of electricity
RCRA	Resource Conservation and Recovery Act of 1976
Reliant Energy	Reliant Energy Retail Services, LLC
REMA	NRG REMA LLC, which leases a 100% interest in the Shawville generating facility and 16.7% and 16.5% interest in the Keystone and Conemaugh generating facilities, respectively
Renewables	Consists of the following projects in which NRG has an ownership interest: Agua Caliente, Ivanpah, and solar generating stations located at various NFL Stadiums
Renewables Platform	The renewable operating and development platform sold by NRG to GIP with NRG's interest in NRG Yield, Inc.
Revolving Credit Facility	The Company's $2.6 billion revolving credit facility, a component of the Senior Credit Facility, due 2024 was amended on May 28, 2019
RGGI	Regional Greenhouse Gas Initiative
RTO	Regional Transmission Organization
SEC	U.S. Securities and Exchange Commission
Securities Act	The 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. The 2023 Term Loan Facility was repaid in the second quarter of 2019
Senior Notes	As of March 31, 2020, NRG's $3.8 billion outstanding unsecured senior notes consisting of $1.0 billion of the 7.25% senior notes due 2026, $1.23 billion of the 6.625% senior notes due 2027, $821 million of 5.75% senior notes due 2028 and $733 million of the 5.250% senior notes due 2029
Senior Secured Notes	As of March 31, 2020, NRG’s $1.1 billion outstanding Senior Secured First Lien Notes consists of $600 million of the 3.75% Senior Secured First Lien Notes due 2024 and $500 million of the 4.45% Senior Secured First Lien Notes due 2029
SNF	Spent Nuclear Fuel
SO2	Sulfur Dioxide

7

South Central Portfolio	NRG's South Central Portfolio, which owned and operated a portfolio of generation assets consisting of Bayou Cove, Big Cajun-I, Big Cajun-II, Cottonwood and Sterlington, was sold on February 4, 2019. NRG is leasing back the Cottonwood facility through May 2025
STP	South Texas Project — nuclear generating facility located near Bay City, Texas in which NRG owns a 44% interest
STPNOC	South Texas Project Nuclear Operating Company
TDSP	Transmission/distribution service provider
Transformation Plan	NRG's three-year plan announced in 2017, which includes targets related to operations and excellence, portfolio optimization, and capital structure and allocation enhancement
TWCC	Texas Westmoreland Coal Co.
UPMC Thermal Project	University of Pittsburgh Medical Center thermal generating project that provides power, steam, chilled water and backup power located in Pittsburgh, PA.
U.S.	United States of America
U.S. DOE	U.S. Department of Energy
Utility Scale Solar	Solar 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
VaR	Value at Risk
VIE	Variable Interest Entity
ZECs	Zero Emissions Credits

8

PART I — FINANCIAL INFORMATION

ITEM 1 — CONDENSED CONSOLIDATED FINANCIAL STATEMENTS AND NOTES

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

	Three months ended March 31,
(In millions, except for per share amounts)	2020		2019
Operating Revenues
Total operating revenues	$	2,019	$	2,165
Operating Costs and Expenses
Cost of operations	1,457		1,651
Depreciation and amortization	109		85
Selling, general and administrative	209		194
Reorganization costs	3		13
Development costs	3		2
Total operating costs and expenses	1,781		1,945
Gain on sale of assets	6		1
Operating Income	244		221
Other (Expense)/Income
Equity in losses of unconsolidated affiliates	(11)		(21)
Impairment losses on investments	(18)		—
Other income, net	27		12
Interest expense	(98)		(114)
Total other expense	(100)		(123)
Income from Continuing Operations Before Income Taxes	144		98
Income tax expense	23		4
Income from Continuing Operations	121		94
Income from discontinued operations, net of income tax	—		388
Net Income	$	121	$	482
Earnings per Share
Weighted average number of common shares outstanding — basic	248		278
Income from continuing operations per weighted average common share — basic	$	0.49	$	0.34
Income from discontinued operations per weighted average common share — basic	$	—	$	1.39
Earnings per Weighted Average Common Share — Basic	$	0.49	$	1.73
Weighted average number of common shares outstanding — diluted	249		280
Income from continuing operations per weighted average common share — diluted	$	0.49	$	0.34
Income from discontinued operations per weighted average common share — diluted	$	—	$	1.38
Earnings per Weighted Average Common Share — Diluted	$	0.49	$	1.72

See accompanying notes to condensed consolidated financial statements.

9

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	Three months ended March 31,
(In millions)	2020		2019
Net Income	$	121	$	482
Other Comprehensive Loss
Foreign currency translation adjustments	(15)		1
Defined benefit plans	—		(3)
Other comprehensive loss	(15)		(2)
Comprehensive Income	$	106	$	480

See accompanying notes to condensed consolidated financial statements.

10

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

	March 31, 2020		December 31, 2019
(In millions, except share data)	(Unaudited)		(Audited)
ASSETS
Current Assets
Cash and cash equivalents	$	759	$	345
Funds deposited by counterparties	51		32
Restricted cash	8		8
Accounts receivable, net	915		1,025
Inventory	372		383
Derivative instruments	884		860
Cash collateral paid in support of energy risk management activities	200		190
Prepayments and other current assets	290		245
Total current assets	3,479		3,088
Property, plant and equipment, net	2,573		2,593
Other Assets
Equity investments in affiliates	350		388
Operating lease right-of-use assets, net	446		464
Goodwill	579		579
Intangible assets, net	769		789
Nuclear decommissioning trust fund	702		794
Derivative instruments	434		310
Deferred income taxes	3,265		3,286
Other non-current assets	225		240
Total other assets	6,770		6,850
Total Assets	$	12,822	$	12,531
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities
Current portion of long-term debt	$	640	$	88
Current portion of operating lease liabilities	71		73
Accounts payable	708		722
Derivative instruments	832		781
Cash collateral received in support of energy risk management activities	51		32
Accrued expenses and other current liabilities	550		663
Total current liabilities	2,852		2,359
Other Liabilities
Long-term debt	5,807		5,803
Non-current operating lease liabilities	473		483
Nuclear decommissioning reserve	303		298
Nuclear decommissioning trust liability	390		487
Derivative instruments	370		322
Deferred income taxes	15		17
Other non-current liabilities	1,076		1,084
Total other liabilities	8,434		8,494
Total Liabilities	11,286		10,853
Redeemable noncontrolling interest in subsidiaries	—		20
Commitments and Contingencies
Stockholders' Equity
Common stock; $0.01 par value; 500,000,000 shares authorized; 422,979,893 and 421,890,790 shares issued and 245,623,854 and 248,996,189 shares outstanding at March 31, 2020 and December 31, 2019, respectively	4		4
Additional paid-in-capital	8,498		8,501
Accumulated deficit	(1,570)		(1,616)
Treasury stock, at cost - 177,356,039 and 172,894,601 shares at March 31, 2020 and December 31, 2019, respectively	(5,189)		(5,039)
Accumulated other comprehensive loss	(207)		(192)
Total Stockholders' Equity	1,536		1,658
Total Liabilities and Stockholders' Equity	$	12,822	$	12,531

See accompanying notes to condensed consolidated financial statements.

11

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	Three months ended March 31,
(In millions)	2020		2019
Cash Flows from Operating Activities
Net Income	$	121	$	482
Income from discontinued operations, net of income tax	—		388
Income from continuing operations	121		94
Adjustments to reconcile net income to cash provided by operating activities:
Distributions from and equity in losses of unconsolidated affiliates	16		21
Depreciation and amortization	109		85
Accretion of asset retirement obligations	11		7
Provision for credit losses	24		26
Amortization of nuclear fuel	13		13
Amortization of financing costs and debt discount/premiums	6		7
Loss on debt extinguishment, net	1		—
Amortization of emissions allowances and energy credits	7		6
Amortization of unearned equity compensation	5		4
(Gain)/loss on sale of assets and disposal of assets	(14)		3
Impairment losses	18		—
Changes in derivative instruments	(46)		(15)
Changes in deferred income taxes and liability for uncertain tax benefits	19		(2)
Changes in collateral deposits in support of energy risk management activities	9		(123)
Changes in nuclear decommissioning trust liability	8		9
Changes in other working capital	(99)		(234)
Cash provided/(used) by continuing operations	208		(99)
Cash provided by discontinued operations	—		8
Net Cash Provided/(Used) by Operating Activities	208		(91)
Cash Flows from Investing Activities
Payments for acquisitions of businesses	—		(16)
Capital expenditures	(66)		(49)
Net purchases of emission allowances	(8)		—
Investments in nuclear decommissioning trust fund securities	(121)		(122)
Proceeds from the sale of nuclear decommissioning trust fund securities	112		113
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	15		1,313
Net distributions from investments in unconsolidated affiliates	—		4
Contributions to discontinued operations	—		(44)
Other	—		(1)
Cash (used)/provided by continuing operations	(68)		1,198
Cash used by discontinued operations	—		(2)
Net Cash (Used)/Provided by Investing Activities	(68)		1,196
Cash Flows from Financing Activities
Payments of dividends to common stockholders	(74)		(8)
Payments for share repurchase activity	(179)		(783)
Purchase of and distributions to noncontrolling interests from subsidiaries	(2)		(1)
Proceeds from issuance of common stock	—		2
Proceeds from issuance of long-term debt	59		—
Repayments of long-term debt	(60)		(37)
Net proceeds from Revolving Credit Facility	552		—
Other	(3)		—
Cash provided/(used) by continuing operations	293		(827)
Cash provided by discontinued operations	—		43
Net Cash Provided/(Used) by Financing Activities	293		(784)
Change in Cash from discontinued operations	—		49
Net Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	433		272
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	385		613
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$	818	$	885

See accompanying notes to condensed consolidated financial statements.

12

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(Unaudited)

(In millions)	Common Stock		Additional Paid-In Capital		Accumulated Deficit		Treasury Stock		Accumulated Other Comprehensive Loss		Total Stock-holders' Equity
Balance at December 31, 2019	$	4	$	8,501	$	(1,616)	$	(5,039)	$	(192)	$	1,658
Net income					121						121
Other comprehensive loss									(15)		(15)
Repurchase of partners' equity interest in VIE			18								18
Share repurchases							(150)				(150)
Equity-based awards activity, net			(21)								(21)
Common stock dividends and dividend equivalents declared(a)					(75)						(75)
Balance at March 31, 2020	$	4	$	8,498	$	(1,570)	$	(5,189)	$	(207)	$	1,536

(In millions)	Common Stock		Additional Paid-In Capital		Accumulated Deficit		Treasury Stock		Accumulated Other Comprehensive Loss		Total Stock-holders' Equity
Balance at December 31, 2018	$	4	$	8,510	$	(6,022)	$	(3,632)	$	(94)	$	(1,234)
Net income					482						482
Other comprehensive loss									(2)		(2)
Share repurchases			(10)				(739)				(749)
Equity-based awards activity, net			(32)								(32)
Issuance of common stock			5								5
Common stock dividends and dividend equivalents declared(a)					(8)						(8)
Balance at March 31, 2019	$	4	$	8,473	$	(5,548)	$	(4,371)	$	(96)	$	(1,538)

(a) Dividends per common share was $0.30 for the quarter ended March 31, 2020 and $0.03 for the quarter ended March 31, 2019

See accompanying notes to condensed consolidated financial statements.

13

NRG ENERGY, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1 — Nature of Business and Basis of Presentation

General

NRG Energy, Inc., or NRG or the Company, is an integrated power company built on dynamic retail brands with diverse generation assets. NRG brings the power of energy to consumers by producing and selling electricity and related products and services in major competitive power markets in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG is a customer-driven business focused on perfecting the integrated model by balancing retail load with generation supply within its deregulated markets. The Company sells energy, services, and innovative, sustainable products and services directly to retail customers under the brand names NRG, Reliant, Green Mountain Energy, Stream, and XOOM Energy, as well as other brand names owned by NRG, supported by approximately 23,000 MW of generation as of March 31, 2020.

The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with the SEC's regulations for interim financial information and with the instructions to Form 10-Q. Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for complete financial statements. The following notes should be read in conjunction with the accounting policies and other disclosures as set forth in the notes to the condensed consolidated financial statements in the Company's 2019 Form 10-K. Interim results are not necessarily indicative of results for a full year.

In the opinion of management, the accompanying unaudited interim condensed consolidated financial statements contain all material adjustments consisting of normal and recurring accruals necessary to present fairly the Company's consolidated financial position as of March 31, 2020, and the results of operations, comprehensive income, cash flows and statements of stockholders' equity for the three months ended March 31, 2020 and 2019.

Segments

As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources.

The Company's businesses are segregated as follows:

•Texas, which includes all activity related to customer, plant and market operations in Texas;

•East, which includes the remaining activity related to customer operations and all activity related to plant and market operations in the East;

•West/Other, which includes the following assets and activities: (i) all activity related to plant and market operations in the West, (ii) activity related to the Cottonwood power plant that was sold to Cleco on February 4, 2019 and is being leased back until 2025, (iii) the remaining renewables activity, including the Company’s equity method investments in Ivanpah Master Holdings, LLC and Agua Caliente, the remaining Home Solar assets and the NFL stadium solar generating assets, and (iv) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and

•Corporate activities.

All affected disclosures have been recast to reflect these changes for all periods presented. For further discussion of segment reporting, refer to Note 13, Segment Reporting.

COVID-19

In March 2020, the World Health Organization categorized COVID-19 as a pandemic and the President of the United States declared the COVID-19 outbreak a national emergency. Electricity has been deemed a 'critical and essential business operation' under various state and federal governmental COVID-19 mandates. NRG remains focused on protecting the health and well-being of its employees, while supporting its customers and the communities in which it operates and assuring the continuity of its operations.

NRG activated its Crisis Management Team ("CMT") in January 2020, which proactively began managing the Company's response to the impacts of COVID-19. The CMT implemented the business continuity plans for the Company and has taken a

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variety of measures to ensure the ongoing availability of the Company’s services, while maintaining the Company's commitment to its core values of health and safety. Pursuant to the Company’s Infectious Disease & Pandemic Policy, NRG implemented restrictions on business travel and face-to-face sales channels, instituted remote work practices and enhanced cleaning and hygiene protocols in all of its facilities. In order to effectively serve the Company’s customers, select essential employees and contractors are continuing to report to plant and certain office locations. The Company is also requiring pre-entry screening, including temperature checks, separation of work crews, additional personal protective equipment for employees and contractors when social distancing cannot be maintained, and a ban on all non-essential visitors. As a result of these business continuity measures, the Company has not experienced any material disruptions in its ability to continue its business operations to date.

Use of Estimates

The preparation of financial statements in conformity with GAAP 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.

Reclassifications

Certain prior year amounts have been reclassified for comparative purposes.

Note 2 — Summary of Significant Accounting Policies

Other Balance Sheet Information

The following table presents the accumulated depreciation included in property, plant and equipment, net and accumulated amortization included in intangible assets, net:

(In millions)	March 31, 2020		December 31, 2019
Property, plant and equipment accumulated depreciation	$	1,832	$	1,752
Intangible assets accumulated amortization	1,237		1,262

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 following table represents the activity in the allowance for credit losses for the three months ended March 31, 2020:

	(In millions)
Balance at January 1, 2020	$	43
Provision for credit losses	24
Write-offs	(32)
Recoveries collected	4
Balance at March 31, 2020	$	39

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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:

(In millions)	March 31, 2020		December 31, 2019
Cash and cash equivalents	$	759	$	345
Funds deposited by counterparties	51		32
Restricted cash	8		8
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows	$	818	$	385

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 accounts that are not contractually restricted but, based on the Company's intention, are not available 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.

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.

Pension Plan Contributions

On March 27, 2020, the Senate passed the CARES Act to provide necessary emergency relief related to the COVID-19 pandemic. The CARES Act allows NRG and other pension plan sponsors to postpone 2020 contributions until January 1, 2021. As a result, NRG will consider deferring approximately $47 million in cash contributions previously planned to be made to the Company's pension plans in 2020. NRG’s pension and postretirement benefit plans are further described in Note 15, Benefit Plans and Other Postretirement Benefits, to the Company’s 2019 Form 10-K.

Recent Accounting Developments - Guidance Adopted in 2020

ASU 2018-17 — In October 2018, the FASB issued ASU No. 2018-17, Consolidations (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities, or ASU No. 2018-17, in response to stakeholders’ observations that Topic 810, Consolidations, could be improved thereby improving general purpose financial reporting. Specifically, ASU No. 2018-17 requires application of the variable interest entity (VIE) guidance to private companies under common control and consideration of indirect interest held through related parties under common control for determining whether fees paid to decision makers and service providers are variable interests. The amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. All entities are required to apply the amendments retrospectively. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2018-15 — In August 2018, the FASB issued ASU No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in Cloud Computing Arrangement That Is a Service Contract, or ASU No. 2018-15. The amendments in ASU No. 2018-15 align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing costs incurred to develop or obtain internal-use software (and hosting arrangement that include an internal-use software license). The amendment also requires the customer to amortize the capitalized implementation costs of a hosting arrangement that is a service contract over the term of the hosting arrangement. The Company adopted the amendments effective January 1, 2020 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2018-13 — In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirement for Fair value Measurement), or ASU No. 2018-13. The amendments in ASU No. 2018-13 eliminate such disclosures as the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and add new disclosure requirements for Level 3 measurements. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Certain disclosures in ASU No. 2018-13 are required to be applied on a retrospective basis and others on a prospective basis. The Company adopted the amendments effective January 1, 2020. As the amendments contemplates changes in disclosures only, it did not have an impact on the Company's results of operations, cash flows, or statement of financial position.

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ASU 2016-13 — In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Statements, or ASU No. 2016-13, which was further amended through various updates issued by the FASB thereafter. The guidance in ASU No. 2016-13 provides a new model for recognizing credit losses on financial assets carried at amortized cost using an estimate of expected credit losses, instead of the "incurred loss" methodology previously required for recognizing credit losses that delayed recognition until it was probable that a loss was incurred. The estimate of expected credit losses is to be based on consideration of past events, current conditions and reasonable and supportable forecasts of future conditions. The Company adopted the standard and its subsequent corresponding updates effective January 1, 2020 using the modified retrospective approach. Results for the reporting periods after January 1, 2020 are presented under Topic 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company's adoption of Topic 326 did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

Recent Accounting Developments - Guidance Not Yet Adopted

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 No. 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,. Early adoption is permitted, including adoption in an interim period. The Company is currently in the process of assessing the impact of this guidance on the consolidated financial statements.

Note 3 — Revenue Recognition

Performance Obligations

As of March 31, 2020, estimated future fixed fee performance obligations are $442 million for the remaining nine months of fiscal year 2020, and $607 million, $305 million, $42 million and $8 million for the fiscal years 2021, 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.

Disaggregated Revenues

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the three months ended March 31, 2020 and 2019:

	Three months ended March 31, 2020
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Retail revenue:
Mass Market	$	1,032	$	347	$	—	$	(1)	$	1,378
Business Solutions	260		23		—		—		283
Total retail revenue	1,292		370		—		(1)		1,661
Energy revenue(a)	5		45		75		(1)		124
Capacity revenue(a)	—		134		15		—		149
Mark-to-market for economic hedging activities(b)	—		(20)		15		1		(4)
Other revenue(a)	61		10		20		(2)		89
Total operating revenue	1,358		539		125		(3)		2,019
Less: Lease revenue	—		—		5		—		5
Less: Realized and unrealized ASC 815 revenue	7		39		44		(1)		89
Total revenue from contracts with customers	$	1,351	$	500	$	76	$	(2)	$	1,925
(a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above:
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Energy revenue	$	—	$	35	$	19	$	(1)	$	53
Capacity revenue	—		24		—		—		24
Other revenue	7		—		10		(1)		16
(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

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	Three months ended March 31, 2019
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Retail revenue:
Mass Market	$	995	$	320	$	—	$	(2)	$	1,313
Business Solutions	258		18		—		—		276
Total retail revenue	1,253		338		—		(2)		1,589
Energy revenue(a)	105		126		58		1		290
Capacity revenue(a)	—		144		12		—		156
Mark-to-market for economic hedging activities(b)	31		(15)		4		—		20
Other revenue(a)	77		16		19		(2)		110
Total operating revenue	1,466		609		93		(3)		2,165
Less: Lease revenue	—		—		5		—		5
Less: Realized and unrealized ASC 815 revenue	315		54		12		—		381
Total revenue from contracts with customers	$	1,151	$	555	$	76	$	(3)	$	1,779
(a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above:
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Energy revenue	$	271	$	47	$	2	$	—	$	320
Capacity revenue	—		18		—		—		18
Other revenue	13		4		6		—		23
(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

Contract Balances

The following table reflects the contract assets and liabilities included in the Company’s balance sheet as of March 31, 2020 and December 31, 2019:

(In millions)	March 31, 2020		December 31, 2019
Deferred customer acquisition costs	$	133	$	133
Accounts receivable, net - Contracts with customers	885		1,002
Accounts receivable, net - Derivative instruments	26		18
Accounts receivable, net - Affiliate	4		5
Total accounts receivable, net	$	915	$	1,025
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)	$	328	$	402
Deferred revenues(a)	87		82

(a) Deferred revenues from contracts with customers for the three months ended March 31, 2020 and the year ended December 31, 2019 were approximately $27 million and $24 million, respectively

The revenue recognized from contracts with customers during both the three months ended March 31, 2020 and 2019 relating to the deferred revenue balance at the beginning of each period was $13 million. The change in deferred revenue balances during the three months ended March 31, 2020 and 2019 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.

Note 4 — Discontinued Operations and Dispositions

Discontinued Operations

Sale of South Central Portfolio

On February 4, 2019, the Company completed the sale of the 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 of December 31, 2018, as the disposition represented a strategic shift in the business in which NRG operates and the criteria for held-for-sale were met. As such, all prior period results for the operations of the South Central Portfolio, except for the Cottonwood facility as discussed below, were reclassified as discontinued operations at

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December 31, 2018. In connection with the transaction, NRG also entered into a transition services agreement to provide certain corporate services to the divested business.

The South Central Portfolio includes the 1,153 MW Cottonwood natural gas generating facility. Upon the closing of the sale of the South Central Portfolio, NRG entered into an 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 the South Central Portfolio discontinued operations were as follows: 

	Three months ended
(In millions)		March 31, 2019
Operating revenues		$	31
Operating costs and expenses		(23)
Gain from operations of discontinued components		8
Gain on disposal of discontinued operations, net of tax		27
Gain from discontinued operations, including disposal, net of tax		$	35

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 prior period results for Carlsbad were reclassified as discontinued operations. The transaction closed on February 27, 2019. Carlsbad continues to have a ground lease and easement agreement with NRG with an initial term ending in 2039 and two ten year extensions. As a result of the transaction, additional commitments related to the project totaled approximately $23 million as of March 31, 2020 and December 31, 2019.

Summarized results of Carlsbad discontinued operations were as follows: 

	Three months ended
(In millions)		March 31, 2019
Operating revenues		$	19
Operating costs and expenses		(9)
Other expenses		(5)
Gain from operations of discontinued components		5
Gain on disposal of discontinued operations, net of tax		348
Gain from discontinued operations, including disposal, net of tax		$	353

Dispositions

The Company completed other asset sales for cash proceeds of $7 million and $10 million during the three months ended March 31, 2020 and 2019, respectively.

Note 5 — Fair Value of Financial Instruments

For cash and cash equivalents, funds deposited by counterparties, accounts and other receivables, accounts payable, restricted cash, and cash collateral posted and received in support of energy risk management activities, the carrying amounts approximate fair values because of the short-term maturity of those instruments and are classified as Level 1 within the fair value hierarchy.

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The estimated carrying amounts and fair values of NRG's recorded financial instruments not carried at fair market value are as follows:

	March 31, 2020				December 31, 2019
(In millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Notes receivable	$	10	$	7	$	11	$	8
Liabilities:
Long-term debt, including current portion (a)	6,510		6,634		5,956		6,504

(a) Excludes deferred financing costs, which are recorded as a reduction to long-term debt in 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 March 31, 2020 and December 31, 2019:

	March 31, 2020				December 31, 2019
(In millions)	Level 2		Level 3		Level 2		Level 3
Long-term debt, including current portion	$	5,967	$	667	$	6,388	$	116

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 condensed consolidated balance sheets on a recurring basis and their level within the fair value hierarchy:

	March 31, 2020
(In millions)	Total		Level 1		Level 2		Level 3
Investments in securities (classified within other current and non-current assets)	$	13	$	—	$	13	$	—
Nuclear trust fund investments:
Cash and cash equivalents	21		21		—		—
U.S. government and federal agency obligations	57		56		1		—
Federal agency mortgage-backed securities	93		—		93		—
Commercial mortgage-backed securities	33		—		33		—
Corporate debt securities	125		—		125		—
Equity securities	308		308		—		—
Foreign government fixed income securities	5		—		5		—
Other trust fund investments:
U.S. government and federal agency obligations	1		1		—		—
Derivative assets:
Commodity contracts	1,318		111		1,015		192
Measured using net asset value practical expedient:
Equity securities — nuclear trust fund investments	60
Equity securities	6
Total assets	$	2,040	$	497	$	1,285	$	192
Derivative liabilities:
Commodity contracts	$	1,202	$	193	$	890	$	119
Total liabilities	$	1,202	$	193	$	890	$	119

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	December 31, 2019
(In millions)	Total		Level 1		Level 2		Level 3
Investments in securities (classified within other current and non-current assets)	$	20	$	—	$	20	$	—
Nuclear trust fund investments:
Cash and cash equivalents	17		17		—		—
U.S. government and federal agency obligations	68		68		—		—
Federal agency mortgage-backed securities	100		—		100		—
Commercial mortgage-backed securities	29		—		29		—
Corporate debt securities	109		—		109		—
Equity securities	388		388		—		—
Foreign government fixed income securities	5		—		5		—
Other trust fund investments:
U.S. government and federal agency obligations	1		1		—		—
Derivative assets:
Commodity contracts	1,170		84		893		193
Measured using net asset value practical expedient:
Equity securities — nuclear trust fund investments	78
Equity securities	8
Total assets	$	1,993	$	558	$	1,156	$	193
Derivative liabilities:
Commodity contracts	$	1,103	$	143	$	805	$	155
Total liabilities	$	1,103	$	143	$	805	$	155

The following table reconciles, for the three months ended March 31, 2020 and 2019, the beginning and ending balances for financial instruments that are recognized at fair value in the condensed consolidated financial statements, using significant unobservable inputs:

	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
	Three months ended March 31, 2020		Three months ended March 31, 2019
(In millions)	Derivatives(a)		Debt Securities		Derivatives(a)		Total
Beginning balance	$	38	$	19	$	20	$	39
Total gains/(losses) realized/unrealized— included in earnings	22		—		(10)		(10)
Cash received	—		(1)		—		(1)
Purchases	8		—		(2)		(2)
Transfers into Level 3(b)	8		—		17		17
Transfers out of Level 3(b)	(3)		—		(27)		(27)
Ending balance	$	73	$	18	$	(2)	$	16
(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 period end	$	(9)	$	—	$	(12)	$	(12)

(a)Consists of derivative 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 in/out are with Level 2

Derivative Fair Value Measurements

A portion of NRG'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. The remainder of the assets and liabilities represent 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 the observable market data with similar characteristics. As of March 31, 2020, contracts valued with prices provided by models and other valuation techniques make up 15% of derivative assets and 10% of derivative liabilities.

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NRG's significant positions classified as Level 3 include physical and financial power executed in illiquid markets, as well as financial transmission rights, or FTRs. The significant unobservable inputs used in developing fair value include illiquid 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 March 31, 2020 and December 31, 2019:

	March 31, 2020
	Fair Value						Input/Range
(In millions)	Assets		Liabilities		Valuation Technique	Significant Unobservable Input	Low		High		Weighted Average
Power Contracts	$	150	$	107	Discounted Cash Flow	Forward Market Price (per MWh)	$	6	$	165	$	25
FTRs	42		12		Discounted Cash Flow	Auction Prices (per MWh)	(380)		91		0
	$	192	$	119

	December 31, 2019
	Fair Value						Input/Range
(In millions)	Assets		Liabilities		Valuation Technique	Significant Unobservable Input	Low		High		Weighted Average
Power Contracts	$	151	$	139	Discounted Cash Flow	Forward Market Price (per MWh)	$	8	$	218	$	24
FTRs	42		16		Discounted Cash Flow	Auction Prices (per MWh)	(105)		213		0
	$	193	$	155

The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable inputs as of March 31, 2020 and December 31, 2019:

Significant Unobservable Input	Position	Change In Input	Impact on Fair Value Measurement
Forward Market Price Power	Buy	Increase/(Decrease)	Higher/(Lower)
Forward Market Price Power	Sell	Increase/(Decrease)	Lower/(Higher)
FTR Prices	Buy	Increase/(Decrease)	Higher/(Lower)
FTR Prices	Sell	Increase/(Decrease)	Lower/(Higher)

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 is calculated based on published default probabilities. As of March 31, 2020, the credit reserve resulted in a $2 million decrease in operating revenue and cost of operations. As of December 31, 2019, the credit reserve did not result in a significant change in fair value in operating revenue and cost of operations.

Concentration of Credit Risk

In addition to the credit risk discussion as disclosed in Note 2, Summary of Significant Accounting Policies, to the Company's 2019 Form 10-K, the following is a discussion of the concentration of credit risk for the Company's contractual obligations. 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. NRG is exposed to counterparty credit risk through various activities including wholesale sales, fuel purchases and retail supply arrangements, as well as retail customer credit risk through its retail load activities.

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Counterparty Credit Risk

The Company's counterparty credit risk policies are disclosed in its 2019 Form 10-K. As of March 31, 2020, counterparty credit exposure, excluding credit exposure from RTOs, ISOs, registered commodity exchanges and certain long-term agreements, was $346 million and NRG held collateral (cash and letters of credit) against those positions of $54 million, resulting in a net exposure of $293 million. 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 54% of the Company's exposure before collateral is expected to roll off by the end of 2021. 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.

	Net Exposure(a)(b)
Category by Industry Sector	(% of Total)
Utilities, energy merchants, marketers and other	81	%
Financial institutions	19
Total as of March 31, 2020	100	%

	Net Exposure (a)(b)
Category by Counterparty Credit Quality	(% of Total)
Investment grade	53	%
Non-investment grade/non-rated	47
Total as of March 31, 2020	100	%

(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 $47 million of exposure to one wholesale counterparty in excess of 10% of total net exposure discussed above as of March 31, 2020. 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, NRG does not anticipate a material impact on its financial position or results of operations from nonperformance by any of NRG's counterparties.

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 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 March 31, 2020, aggregate credit risk exposure managed by NRG to these counterparties was approximately $689 million for the next five years, including exposure to PG&E through its unconsolidated affiliates, Ivanpah and Agua Caliente.

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Retail Customer Credit Risk

The Company is exposed to retail credit risk through the Company's 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 may result from both non-payment 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 March 31, 2020, 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. 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 credit losses.

Note 6 — Nuclear Decommissioning Trust Fund

NRG's Nuclear Decommissioning Trust Fund assets, which are for the decommissioning of its 44% interest in STP, are comprised of securities classified as available-for-sale and recorded at fair value based on actively quoted market prices. NRG accounts for the Nuclear Decommissioning Trust Fund in accordance with ASC 980, Regulated Operations, 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 OCI, 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 March 31, 2020							As of December 31, 2019
(In millions, except maturities)	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	$	21	$	—	$	—	—	$	17	$	—	$	—	—
U.S. government and federal agency obligations	57		10		—		14	68		4		—		11
Federal agency mortgage-backed securities	93		4		—		24	100		3		—		24
Commercial mortgage-backed securities	33		1		1		26	29		1		1		24
Corporate debt securities	125		5		4		12	109		6		—		11
Equity securities	368		228		1		—	466		324		—		—
Foreign government fixed income securities	5		—		—		10	5		—		—		10
Total	$	702	$	248	$	6		$	794	$	338	$	1

The following table summarizes proceeds from sales of available-for-sale securities held in the trust funds and the related realized gains and losses from these sales. The cost of securities sold is determined on the specific identification method.

	Three months ended March 31,
(In millions)	2020		2019
Realized gains	$	2	$	3
Realized losses	(5)		(2)
Proceeds from sale of securities	112		113

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Note 7 — Accounting for Derivative Instruments and Hedging Activities

Energy-Related Commodities

As of March 31, 2020, NRG had energy-related derivative instruments extending through 2034. The Company marks these derivatives to market through the statement of operations. NRG has executed power purchase agreements extending through 2036 that qualified for the NPNS exception and were therefore exempt from fair value accounting treatment.

Interest Rate Swaps

NRG was 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 entered into interest rate swap agreements. As of March 31, 2020, NRG had no interest rate derivative instruments as a result of the early termination of such contracts in connection with the repayment of the 2023 Term Loan Facility during the second quarter of 2019.

Volumetric Underlying Derivative Transactions

The following table summarizes the net notional volume buy/(sell) of NRG's open derivative transactions broken out by category, excluding those derivatives that qualified for the NPNS exception, as of March 31, 2020 and December 31, 2019. 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.

		Total Volume (In millions)
Category	Units	March 31, 2020	December 31, 2019
Emissions	Short Ton	1	3
Renewable Energy Certificates	Certificates	1	1
Coal	Short Ton	7	10
Natural Gas	MMBtu	(152)	(181)
Power	MWh	46	38
Capacity	MW/Day	(1)	(1)

Fair Value of Derivative Instruments

The following table summarizes the fair value within the derivative instrument valuation on the balance sheets:

	Fair Value
	Derivative Assets				Derivative Liabilities
(In millions)	March 31, 2020		December 31, 2019		March 31, 2020		December 31, 2019
Derivatives Not Designated as Cash Flow or Fair Value Hedges:
Commodity contracts current	$	884	$	860	$	832	$	781
Commodity contracts long-term	434		310		370		322
Total Derivatives Not Designated as Cash Flow or Fair Value Hedges	$	1,318	$	1,170	$	1,202	$	1,103

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 of 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 / Liabilities		Derivative Instruments		Cash Collateral (Held) / Posted		Net Amount
As of March 31, 2020
Commodity contracts:
Derivative assets	$	1,318	$	(1,010)	$	(17)	$	291
Derivative liabilities	(1,202)		1,010		94		(98)
Total commodity contracts	$	116	$	—	$	77	$	193

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	Gross Amounts Not Offset in the Statement of Financial Position
(In millions)	Gross Amounts of Recognized Assets / Liabilities		Derivative Instruments		Cash Collateral (Held) / Posted		Net Amount
As of December 31, 2019
Commodity contracts:
Derivative assets	$	1,170	$	(909)	$	(7)	$	254
Derivative liabilities	(1,103)		909		73		(121)
Total commodity contracts	$	67	$	—	$	66	$	133

Impact of Derivative Instruments on the Statements of Operations

Unrealized gains and losses associated with changes in the fair value of derivative instruments not accounted for as cash flow and fair value 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 commodity hedges is included within operating revenues and cost of operations and the effect of interest rate hedges is included in interest expense.

(In millions)	Three months ended March 31,
Unrealized mark-to-market results	2020		2019
Reversal of previously recognized unrealized losses on settled positions related to economic hedges	$	9	$	19
Reversal of acquired loss/(gain) positions related to economic hedges	1		(2)
Net unrealized gains on open positions related to economic hedges	34		3
Total unrealized mark-to-market gains for economic hedging activities	44		20
Reversal of previously recognized unrealized (gains) on settled positions related to trading activity	(2)		(6)
Net unrealized gains on open positions related to trading activity	13		13
Total unrealized mark-to-market gains for trading activity	11		7
Total unrealized gains	$	55	$	27

	Three months ended March 31,
(In millions)	2020		2019
Unrealized gains included in operating revenues	$	7	$	27
Unrealized gains included in cost of operations	48		—
Total impact to statement of operations — energy commodities	$	55	$	27
Total impact to statement of operations — interest rate contracts	$	—	$	(9)

The reversals of acquired gain or loss 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 operating revenue or cost of operations during the same period.

For the three months ended March 31, 2020, the $34 million unrealized gain from open economic hedge positions was primarily the result of an increase in value of forward power positions due to a decrease in West/Other power prices, as well as an increase in value of ERCOT heat rate positions due to ERCOT heat rate expansion.

For the three months ended March 31, 2019, the $3 million unrealized gain from open economic hedge positions was primarily the result of an increase in value of forward power positions due to a decrease in power prices.

Credit Risk Related Contingent Features

Certain of the Company's hedging agreements contain provisions that require the Company to post additional collateral if the counterparty determines that there has been deterioration in credit quality, generally termed “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. The collateral required for contracts with adequate assurance clauses that are in a net liability position as of March 31, 2020 was $12 million. The collateral required for contracts with credit rating contingent features that are in a net liability position as of March 31, 2020 was $25 million. The Company is also a party to certain marginable agreements under which it

26

has a net liability position, but the counterparty has not called for the collateral due, which was $1 million as of March 31, 2020.

See Note 5, Fair Value of Financial Instruments, for discussion regarding concentration of credit risk.

Note 8 — Impairments

Petra Nova Parish Holdings — During the first quarter of 2020, due to the decline in oil prices, NRG determined that the carrying amount of the Company’s equity method investment exceeded the fair value of the investment and that the decline is considered to be other-than-temporary. In determining the fair value, the Company utilized an income approach to estimate future project cash flows. The Company recorded an impairment loss of $18 million in the Texas segment, which includes the anticipated drawdown of the $12 million letter of credit posted in September 2019 to cover certain project debt reserve requirements.

Note 9 — Long-term Debt

Long-term debt consisted of the following:

(In millions, except rates)	March 31, 2020		December 31, 2019		Interest rate %
Recourse debt:
Senior Notes, due 2026	$	1,000	$	1,000	7.250
Senior Notes, due 2027	1,230		1,230		6.625
Senior Notes, due 2028	821		821		5.750
Senior Notes, due 2029	733		733		5.250
Convertible Senior Notes, due 2048	575		575		2.750
Senior Secured First Lien Notes, due 2024	600		600		3.750
Senior Secured First Lien Notes, due 2029	500		500		4.450
Revolving Credit Facility(a)	635		83		L+ 1.750
Tax-exempt bonds	466		466		1.300 - 6.000
Subtotal recourse debt	6,560		6,008
Non-recourse debt:
Other	32		34		various
Subtotal all non-recourse debt	32		34
Subtotal long-term debt (including current maturities)	6,592		6,042
Less current maturities	(640)		(88)
Less debt issuance costs	(63)		(65)
Discounts	(82)		(86)
Total long-term debt	$	5,807	$	5,803

(a) As of March 31, 2020, the Company had drawn under its Revolving Credit Facility using a mix of 1-week LIBOR and 1-month LIBOR + 1.750

Recourse Debt

Revolving Credit Facility

The Company had $635 million and $83 million outstanding under its Revolving Credit Facility as of March 31, 2020 and December 31, 2019, respectively. Due to market conditions, primarily as a result of COVID-19, the Company drew upon the facility in the first quarter of 2020 as a precaution and to proportionally increase cash on hand. As of May 7, 2020, the Company had $250 million outstanding under its Revolving Credit Facility.

Tax-Exempt Bonds

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 Bonds"). The Bonds are guaranteed on a first-priority basis by each of NRG’s current and future subsidiaries that guarantee indebtedness under its credit agreement. The Bonds 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 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 Bonds or any of NRG’s senior, unsecured debt securities or downgrade such rating below investment grade. The Bonds are subject to mandatory tender and purchase on April 3, 2023 and have a final maturity date of April 1, 2042.

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NRG used the net proceeds from the offering to redeem the existing principal amount of outstanding Dunkirk Power LLC 5.875% tax exempt bonds due 2042.

Non-Recourse Debt

Cottonwood - Letters of Credit

On January 4, 2019, the Company entered into an $80 million credit agreement to issue letters of credit, which is currently supporting the Cottonwood facility lease. Annual fees of 1.33% on the facility are paid quarterly in advance. As of March 31, 2020, the full $80 million was issued.

Note 10 — Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs

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.

PG&E Bankruptcy — Agua Caliente and two of the three Ivanpah units 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 primary operating subsidiary utility PG&E filed for Chapter 11 relief in the United States Bankruptcy Court for the Northern District of California (the "California Bankruptcy Court"). As a result of the bankruptcy filing, Agua Caliente and the two Ivanpah units have issued notices of events of default under their respective loan agreements. The Ivanpah project signed a forbearance agreement with the U.S. DOE on October 25, 2019. The Company's subsidiaries are working with their partners on the projects and the loan counterparties.

On September 9, 2019, PG&E filed a plan of reorganization that would assume all power purchase agreements, including those held by Agua Caliente and the two Ivanpah units. There are many conditions that must be satisfied before the PG&E plan and assumption of the power purchase agreements can become effective, including, but not limited to, formal approvals by various classes of creditors, the California Bankruptcy Court, and the CPUC. A hearing before the California Bankruptcy Court to consider whether the PG&E plan will be approved and confirmed is currently expected to occur on May 29, 2020.

NRG's maximum exposure to loss is limited to its equity investment, which was $213 million for Agua Caliente and $6 million for Ivanpah as of March 31, 2020.

Variable Interest Entities that are not consolidated

Through its consolidated subsidiary, NRG Solar Ivanpah LLC, NRG owns a 54.5% interest in Ivanpah Master Holdings LLC, the owner of the Ivanpah projects. 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.

Variable Interest Entities that are Consolidated

The Company has a controlling financial interest in certain entities that have been identified as VIEs under ASC 810. These arrangements are primarily 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 credits as further described in Note 2, Summary of Significant Accounting Policies, to the Company's 2019 Form 10-K. During the first quarter of 2020, the Company repurchased its partners' equity interest in one of the partnerships. As the Company retains control of its interest, the repurchase was recorded to equity.

The summarized financial information for the Company's consolidated VIEs consisted of the following:

(In millions)	March 31, 2020		December 31, 2019
Current assets	$	1	$	3
Net property, plant and equipment	—		71
Other long-term assets	26		27
Total assets	27		101
Current liabilities	4		4
Long-term debt	24		24
Other long-term liabilities	4		8
Total liabilities	32		36
Redeemable noncontrolling interest	—		20
Net assets less noncontrolling interest	$	(5)	$	45

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Note 11 — Changes in Capital Structure

As of March 31, 2020 and December 31, 2019, the Company had 500,000,000 shares of common stock authorized. The following table reflects the changes in NRG's common stock issued and outstanding:

	Issued	Treasury	Outstanding
Balance as of December 31, 2019	421,890,790	(172,894,601)	248,996,189
Shares issued under LTIPs	1,089,103	—	1,089,103
Shares repurchased	—	(4,461,438)	(4,461,438)
Balance as of March 31, 2020	422,979,893	(177,356,039)	245,623,854
Shares issued under LTIPs	1,096	—	1,096
Shares issued under ESPP	—	63,455	63,455
Shares repurchased	—	(1,601,345)	(1,601,345)
Balance as of May 7, 2020	422,980,989	(178,893,929)	244,087,060

Share Repurchases

The Company adopted in the fourth quarter of 2019 a long-term capital allocation policy 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 discussed below, supplemented by share repurchases. The following repurchases have been made during the three months ended March 31, 2020 and through May 7, 2020:

	Total number of shares purchased	Average price paid per share	Amounts paid for shares purchased (in millions)
2020 repurchases:
Repurchases	4,461,438		$	150
Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances(a)	710,063		27
Total Share Repurchases during the three months ended March 31, 2020	5,171,501	$34.20	177
Repurchases made subsequent to March 31, 2020	1,601,345		$	47
Total Share Repurchases January 1, 2020 through May 7, 2020	6,772,846	$33.05	$	224

(a) 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 $38.24

Employee Stock Purchase Plan

In March 2019, the Company reopened participation in the ESPP, which allows eligible employees to elect to withhold between 1% and 10% of their eligible compensation to purchase shares of NRG common stock at the lesser of 95% of its market value on the offering date or 95% of the fair market value on the exercise date. An offering date will occur each April 1 and October 1. An exercise date will occur each September 30 and March 31. In April 2020, 63,455 shares of common stock were issued to employee accounts from treasury stock for the offering period of October 1, 2019 to March 31, 2020.

NRG Common Stock Dividends

Beginning in the first quarter of 2020, NRG increased the annual dividend to $1.20 from $0.12 per share and expects to target an annual dividend growth rate of 7-9% per share in subsequent years. A quarterly dividend of $0.30 per share was paid on the Company's common stock during the three months ended March 31, 2020. On April 15, 2020, NRG declared a quarterly dividend on the Company's common stock of $0.30 per share, payable May 15, 2020 to stockholders of record as of May 1, 2020.

The Company's common stock dividends are subject to available capital, market conditions, and compliance with associated laws, regulations and other contractual obligations.

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Note 12 — Earnings Per Share

Basic income per common share is computed by dividing net income 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 per share is computed in a manner consistent with that of basic income per share while giving effect to all potentially dilutive common shares that were outstanding during the period. The outstanding non-qualified stock options, non-vested restricted stock units, market stock units, and relative performance stock units are not considered outstanding for purposes of computing basic income per share. However, these instruments are included in the denominator for purposes of computing diluted income per share under the treasury stock method. The 2048 Convertible Senior Notes are convertible, under certain circumstances, into the Company’s common stock, cash or combination thereof (at NRG's option). There is no dilutive effect for the 2048 Convertible Senior Notes due to the Company’s expectation to settle the liability in cash.

The reconciliation of NRG's basic and diluted income per share is shown in the following table:

	Three months ended March 31,
(In millions, except per share data)	2020		2019
Basic income per share:
Net income available to common shareholders	$	121	$	482
Weighted average number of common shares outstanding - basic	248		278
Income per weighted average common share — basic	$	0.49	$	1.73
Diluted income per share:
Net income available to common shareholders	$	121	$	482
Weighted average number of common shares outstanding - basic	248		278
Incremental shares attributable to the issuance of equity compensation (treasury stock method)	1		2
Weighted average number of common shares outstanding - dilutive	249		280
Income per weighted average common share — diluted	$	0.49	$	1.72

As of March 31, 2020 and 2019 outstanding equity instruments that are anti-dilutive and were not included in the computation of the Company’s diluted income per share were not significant.

Note 13 — Segment Reporting

As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020, as further described in Note 1, Nature of Business. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources The financial information for the three months ended March 31, 2019 was recast to reflect the current segment structure.

In February 2019, as described in Note 4, Discontinued Operations and Dispositions, the Company completed the sales of the South Central Portfolio and Carlsbad. The financial information for the three months ended March 31, 2019 presented below reflects the presentation of these entities as discontinued operations within the corporate segment.

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 allocation of capital, as well as net income/(loss).

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	Three months ended March 31, 2020
(In millions)	Texas		East		West/Other		Corporate		Eliminations		Total
Operating revenues	$	1,358	$	539	$	125	$	—	$	(3)	$	2,019
Depreciation and amortization	59		33		8		9		—		109
Reorganization costs	1		—		—		2		—		3
Gain on sale of assets	—		—		1		5		—		6
Equity in losses of unconsolidated affiliates	—		—		(11)		—		—		(11)
Income/(loss) from continuing operations before income taxes	162		24		41		(82)		(1)		144
Net income/(loss)	$	162	$	24	$	41	$	(105)	$	(1)	$	121

	Three months ended March 31, 2019
(In millions)	Texas		East		West/Other		Corporate		Eliminations		Total
Operating revenues	$	1,466	$	609	$	93	$	(1)	$	(2)	$	2,165
Depreciation and amortization	40		26		11		8		—		85
Reorganization costs	1		—		—		12		—		13
Gain on sale of assets	—		1		—		—		—		1
Equity in losses of unconsolidated affiliates	(3)		—		(18)		—		—		(21)
Income/(loss) from continuing operations before income taxes	150		99		(23)		(127)		(1)		98
Income/(loss) from continuing operations	150		99		(23)		(131)		(1)		94
Income from discontinued operations, net of tax	—		—		—		388		—		388
Net income/(loss)	$	150	$	99	$	(23)	$	257	$	(1)	$	482

Note 14 — Income Taxes

Effective Income Tax Rate

The income tax provision consisted of the following:

	Three months ended March 31,
(In millions, except rates)	2020			2019
Income from continuing operations before income taxes	$	144		$	98
Income tax expense from continuing operations	23			4
Effective income tax rate	16.0		%	4.1		%

For the three months ended March 31, 2020, the effective tax rate was lower than the statutory rate of 21%, primarily due to an excess tax benefit related to share-based compensation, partially offset by state tax expense. For the three months ended March 31, 2019, the effective tax rate was lower than the statutory rate of 21%, primarily due to the tax benefit for the change in valuation allowance, partially offset by state tax expense.

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. NRG does not expect the CARES Act provisions to have a material impact on the tax positions of the Company.

Uncertain Tax Benefits

As of March 31, 2020, NRG had a non-current tax liability of $16 million for uncertain tax benefits from positions taken on various state income tax returns and accrued interest. For the three months ended March 31, 2020, NRG accrued an immaterial amount of interest relating to the uncertain tax benefits. As of March 31, 2020, NRG had cumulative interest and penalties related to these uncertain tax benefits of $2 million. The Company recognizes interest and penalties related to uncertain tax benefits in income tax expense.

31

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 and Canada. The Company is no longer subject to U.S. federal income tax examinations for years prior to 2016. With few exceptions, state and local income tax examinations are no longer open for years prior to 2011.

Note 15 — Related Party Transactions

NRG provides services to some of its 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:

	Three months ended March 31,
(In millions)	2020		2019
Revenues from Related Parties Included in Operating Revenues
Gladstone	$	1	$	1
Ivanpah(a)	13		10
Midway-Sunset	1		1
Total	$	15	$	12

(a) Also includes fees under project management agreements with each project company

Note 16 — Commitments and Contingencies

Commitments

First Lien Structure

NRG has granted first liens to certain counterparties on a substantial portion of property and assets owned by NRG and the guarantors of its senior debt. 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 counterparties would have a claim under the first lien program. As of March 31, 2020, all hedges under the first lien were in-the-money for NRG on a counterparty aggregate basis.

Jewett Mine Lignite Contract

The Company's Limestone facility historically burned lignite obtained from the Jewett mine, which was operated by Texas Westmoreland Coal Co., or TWCC. On or about March 15, 2019, the Jewett mine and related lignite supply agreement with NRG were acquired by Westmoreland Mining LLC pursuant to a plan of reorganization confirmed by the U.S. Bankruptcy Court for the Southern District of Texas. Active mining under the lignite supply agreement ceased as of December 31, 2016; however, under the terms of the lignite supply agreement, the mine operator remains responsible for undertaking reclamation activities and NRG is responsible for 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. Additionally, the lignite supply agreement obligates NRG to provide additional performance assurance if required by the Railroad Commission of Texas.

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 accruals 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 accrual for the applicable legal matters, including regulatory and environmental matters as further discussed in Note 17, Regulatory Matters, and Note 18, 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

32

of the Company's liabilities and contingencies could be at amounts that are different from its currently recorded accruals 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.

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 claim 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 seek damages for the alleged improper charges and a declaration as to which charges are proper under the contract. In February 2020, the court dismissed this lawsuit without prejudice for lack of subject matter jurisdiction. A motion to reconsider the judgement is pending with the District Court. This matter has been appealed to the United States Court of Appeals for the Fifth Circuit. 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.

Sierra club et al. v. Midwest Generation LLC — 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 four 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.

XOOM Energy Litigation — XOOM is a defendant in two purported class action lawsuits pending in Maryland and New York. The plaintiffs generally claim that they did not receive the savings they were promised in their natural gas and electricity bills. The parties in the Maryland lawsuit are briefing summary judgment and class certification. In the New York case, XOOM filed a motion to dismiss, which the court granted on September 21, 2018, later entering judgment in XOOM's favor on September 24, 2018. The plaintiffs in the New York case appealed to the U.S. Court of Appeals for the Second Circuit. On July 26, 2019, the Second Circuit reversed the judgment of the district court and remanded to the district court with instructions that plaintiffs be permitted to proceed on their proposed amended complaint. This matter was known and accrued for at the time of the acquisition.

Note 17 — Regulatory Matters

Environmental regulatory matters are discussed within Note 18, Environmental Matters, to this Form 10-Q.

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 businesses.

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.

California Station Power — As the result of unfavorable final and non-appealable litigation, the Company accrued a liability associated with consumption of station power at the Company's Encina power plant facility in California after August 30, 2010. The Company has established an appropriate accrual pending potential regulatory action by San Diego Gas & Electric regarding 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 investigating potential violations of MISO rules involving bidding for the Big Cajun 2 facility, as well as other aspects of NRG’s operations in MISO. FERC has the authority to require disgorgement of profits and to impose penalties and NRG retains any liability following the sale of the South Central Portfolio. We expect a preliminary finding from FERC in 2020.

33

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 connection with offers made into the ISO-NE Forward Capacity Auction in 2016. On April 26, 2019, NRG responded to the preliminary findings. 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. NRG withdrew the bids prior to the 2016 auction in the normal course of our commercial business decision making.

Note 18 — Environmental Matters

NRG is subject to a wide range of environmental laws in the development, construction, ownership and operation of projects. These laws generally require that governmental permits and approvals be obtained before construction and 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 requirements regarding GHGs, 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. In general, future laws are expected to require the addition of emissions controls or other environmental controls or to impose certain 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 state environmental laws generally have become more stringent over time, although this trend could slow or pause in the near term with respect to federal laws under the current U.S. presidential administration.

Air

On July 8, 2019, EPA promulgated the ACE rule, which rescinded the CPP, which had sought to broadly regulate CO₂ emissions from the power sector. The ACE rule requires states that have coal-fired EGUs to develop plans to seek heat rate improvements from coal-fired EGUs. Numerous parties have challenged the ACE rule in the D.C. Circuit and numerous parties have filed petitions for reconsideration with the EPA.

Water

Effluent Limitations Guidelines — In November 2015, the EPA revised the Effluent Limitations Guidelines for Steam Electric Generating Facilities, which would have imposed more stringent requirements (as individual permits were renewed) for wastewater streams from FGD, fly ash, bottom ash, and flue gas mercury control. On September 18, 2017, the EPA promulgated a final rule that, among other things, postpones 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. On April 12, 2019, the United States Court of Appeals for the Fifth Circuit addressed challenges to the rule brought by several environmental groups related to legacy wastewaters and coal ash leachate and remanded portions of the rule to the EPA. On November 22, 2019, the EPA proposed amending the 2015 ELG rule by: (x) decreasing the stringency of the selenium limit (but increasing the stringency of the nitrate and mercury limits) for FGD wastewater; (y) relaxing the zero-discharge requirement for bottom ash transport water; and (z) changing several deadlines. The Company has eliminated its estimate of the environmental capital expenditures that would have been required to comply with permits incorporation the revised guidelines. The Company will revisit these estimates after the rule is revised.

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 2017, the EPA agreed to reconsider the rule. On July 30, 2018, the EPA promulgated a rule that amends 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. On August 14, 2019, the EPA proposed targeted changes to the April 2015 Rule including changes to address the August 2018 D.C. Circuit decision. On December 2, 2019, the EPA released for comment "Closure Part A Proposal" to revise the CCR Rule to address the D.C. Circuit's 2018 decision regarding the adequacy of clay-lined impoundments, obligations to close all unlined impoundments and related deadlines. On February 20, 2020, the EPA proposed the framework for developing and implementing a federal permit program for states that are not approved to administer the CCR rule. On March 3, 2020, the EPA proposed for comment "A Holistic Approach to Closure Part B," which proposes procedures for obtaining approval to operate existing impoundments with alternative liners. We anticipate that the EPA will promulgate new regulations to address these and other issues as it reconsiders other aspects of the existing rule. The Company will determine estimates of the cost of compliance after the rule is revised.

34

Note 19 — Condensed Consolidating Financial Information

As of March 31, 2020, the Company had outstanding $4.4 billion of Senior Notes due from 2026 to 2048 and outstanding $1.1 billion of Senior Secured First Lien Notes due from 2024 to 2029, as shown in Note 9, Long-term Debt. These Senior Notes and Senior Secured First Lien 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.

35

Unless otherwise noted below, each of the following guarantor subsidiaries fully and unconditionally guaranteed the Senior Notes and the Senior Secured First Lien Notes as of March 31, 2020:

Ace Energy, Inc.	NRG Distributed Generation PR LLC	Reliant Energy Power Supply, LLC
Allied Home Warranty GP LLC	NRG Dunkirk Operations Inc.	Reliant Energy Retail Holdings, LLC
Allied Warranty LLC	NRG ECOKAP Holdings LLC	Reliant Energy Retail Services, LLC
Arthur Kill Power LLC	NRG El Segundo Operations Inc.	RERH Holdings, LLC
Astoria Gas Turbine Power LLC	NRG Energy Labor Services LLC	Saguaro Power LLC
BidURenergy, Inc.	NRG Energy Services Group LLC	SGE Energy Sourcing, LLC
Cabrillo Power I LLC	NRG Energy Services LLC	SGE Texas Holdco, LLC
Cabrillo Power II LLC	NRG Generation Holdings Inc.	Somerset Operations Inc.
Carbon Management Solutions LLC	NRG Greenco LLC	Somerset Power LLC
Cirro Energy Services, Inc.	NRG Home & Business Solutions LLC	Stream Energy Columbia, LLC
Cirro Group, Inc.	NRG Home Services LLC	Stream Energy Delaware, LLC
Connecticut Jet Power LLC	NRG Home Solutions LLC	Stream Energy Illinois, LLC
Devon Power LLC	NRG Home Solutions Product LLC	Stream Energy Maryland, LLC
Dunkirk Power LLC	NRG Homer City Services LLC	Stream Energy New Jersey, LLC
Eastern Sierra Energy Company LLC	NRG HQ DG LLC	Stream Energy New York, LLC
El Segundo Power II LLC	NRG Huntley Operations Inc.	Stream Energy Pennsylvania, LLC
El Segundo Power, LLC	NRG Identity Protect LLC	Stream Georgia Gas SPE, LLC
Energy Alternatives Wholesale, LLC	NRG Ilion Limited Partnership	Stream Ohio Gas & Electric, LLC
Energy Choice Solutions LLC	NRG Ilion LP LLC	Stream SPE GP, LLC
Energy Plus Holdings LLC	NRG International LLC	Stream SPE, Ltd.
Energy Plus Natural Gas LLC	NRG Maintenance Services LLC	Texas Genco GP, LLC
Energy Protection Insurance Company	NRG Mextrans Inc.	Texas Genco Holdings, Inc.
Everything Energy LLC	NRG MidAtlantic Affiliate Services Inc.	Texas Genco LP, LLC
Forward Home Security, LLC	NRG Middletown Operations Inc.	Texas Genco Services, LP
GCP Funding Company, LLC	NRG Montville Operations Inc.	US Retailers LLC
Green Mountain Energy Company	NRG North Central Operations Inc.	Vienna Operations Inc.
Gregory Partners, LLC	NRG Northeast Affiliate Services Inc.	Vienna Power LLC
Gregory Power Partners LLC	NRG Norwalk Harbor Operations Inc.	WCP (Generation) Holdings LLC
Huntley Power LLC	NRG Operating Services, Inc.	West Coast Power LLC
Independence Energy Alliance LLC	NRG Oswego Harbor Power Operations Inc.	XOOM Alberta Holdings, LLC
Independence Energy Group LLC	NRG PacGen Inc.	XOOM British Columbia Holdings, LLC
Independence Energy Natural Gas LLC	NRG Portable Power LLC	XOOM Energy California, LLC
Indian River Operations Inc.	NRG Power Marketing LLC	XOOM Energy Connecticut, LLC
Indian River Power LLC	NRG Reliability Solutions LLC	XOOM Energy Delaware, LLC
Meriden Gas Turbines LLC	NRG Renter's Protection LLC	XOOM Energy Georgia, LLC
Middletown Power LLC	NRG Retail LLC	XOOM Energy Global Holdings, LLC
Montville Power LLC	NRG Retail Northeast LLC	XOOM Energy Illinois LLC
NEO Corporation	NRG Rockford Acquisition LLC	XOOM Energy Indiana, LLC
New Genco GP, LLC	NRG Saguaro Operations Inc.	XOOM Energy Kentucky, LLC
Norwalk Power LLC	NRG Security LLC	XOOM Energy Maine, LLC
NRG Advisory Services LLC	NRG Services Corporation	XOOM Energy Maryland, LLC
NRG Affiliate Services Inc.	NRG SimplySmart Solutions LLC	XOOM Energy Massachusetts, LLC
NRG Arthur Kill Operations Inc.	NRG South Central Affiliate Services Inc.	XOOM Energy Michigan, LLC
NRG Astoria Gas Turbine Operations Inc.	NRG South Central Operations Inc.	XOOM Energy New Hampshire, LLC
NRG Business Services LLC	NRG South Texas LP	XOOM Energy New Jersey, LLC
NRG Cabrillo Power Operations Inc.	NRG Texas Gregory LLC	XOOM Energy New York, LLC
NRG California Peaker Operations LLC	NRG Texas Holding Inc.	XOOM Energy Ohio, LLC
NRG Cedar Bayou Development Company, LLC	NRG Texas LLC	XOOM Energy Pennsylvania, LLC
NRG Connected Home LLC	NRG Texas Power LLC	XOOM Energy Rhode Island, LLC
NRG Connecticut Affiliate Services Inc.	NRG Warranty Services LLC	XOOM Energy Texas, LLC
NRG Construction LLC	NRG West Coast LLC	XOOM Energy Virginia, LLC
NRG Curtailment Solutions, Inc.	NRG Western Affiliate Services Inc.	XOOM Energy Washington D.C., LLC
NRG Development Company Inc.	O'Brien Cogeneration, Inc. II	XOOM Energy, LLC
NRG Devon Operations Inc.	Oswego Harbor Power LLC	XOOM Ontario Holdings, LLC
NRG Dispatch Services LLC	Reliant Energy Northeast LLC	XOOM Solar, LLC
NRG Distributed Energy Resources Holdings LLC

36

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. There are no restrictions on the ability of any of the guarantor subsidiaries to transfer funds to NRG. However, 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 of Regulation S-X of the Securities Act. 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.

37

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Operating Revenues
Total operating revenues	$	1,778	$	252	$	—	$	(11)	$	2,019
Operating Costs and Expenses
Cost of operations	1,290		202		(24)		(11)		1,457
Depreciation and amortization	80		19		10		—		109
Selling, general and administrative	140		5		64		—		209
Reorganization costs	—		—		3		—		3
Development costs	—		—		3		—		3
Total operating costs and expenses	1,510		226		56		(11)		1,781
Gain on sale of assets	—		1		5		—		6
Operating Income/(Loss)	268		27		(51)		—		244
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	3		—		262		(265)		—
Equity in losses of unconsolidated affiliates	—		(11)		—		—		(11)
Impairment losses on investments	—		(18)		—		—		(18)
Other income/(loss), net	3		(1)		25		—		27
Interest expense	(5)		(1)		(92)		—		(98)
Total other income/(expense)	1		(31)		195		(265)		(100)
Income/(Loss) from Continuing Operations Before Income Taxes	269		(4)		144		(265)		144
Income tax expense	—		—		23		—		23
Net Income/(Loss)	$	269	$	(4)	$	121	$	(265)	$	121

(a)All significant intercompany transactions have been eliminated in consolidation

38

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Net Income/(Loss)	$	269	$	(4)	$	121	$	(265)	$	121
Other Comprehensive Loss
Foreign currency translation adjustments, net	(15)		(15)		(15)		30		(15)
Defined benefit plans, net	2		—		—		(2)		—
Other comprehensive loss	(13)		(15)		(15)		28		(15)
Comprehensive Income/(Loss)	$	256	$	(19)	$	106	$	(237)	$	106

(a)All significant intercompany transactions have been eliminated in consolidation

39

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING BALANCE SHEETS

March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
ASSETS
Current Assets
Cash and cash equivalents	$	—	$	19	$	740	$	—	$	759
Funds deposited by counterparties	51		—		—		—		51
Restricted cash	7		—		1		—		8
Accounts receivable, net	1,684		137		533		(1,439)		915
Inventory	287		85		—		—		372
Derivative instruments	882		35		—		(33)		884
Cash collateral paid in support of energy risk management activities	197		3		—		—		200
Prepayments and other current assets	222		8		60		—		290
Total current assets	3,330		287		1,334		(1,472)		3,479
Property, plant and equipment, net	1,372		1,046		155		—		2,573
Other Assets
Investment in subsidiaries	158		—		5,122		(5,280)		—
Equity investments in affiliates	—		350		—		—		350
Operating lease right-of-use assets, net	79		251		116		—		446
Goodwill	400		179		—		—		579
Intangible assets, net	729		40		—		—		769
Nuclear decommissioning trust fund	702		—		—		—		702
Derivative instruments	434		13		—		(13)		434
Deferred income taxes	435		(32)		2,862		—		3,265
Other non-current assets	163		27		35		—		225
Total other assets	3,100		828		8,135		(5,293)		6,770
Total Assets	$	7,802	$	2,161	$	9,624	$	(6,765)	$	12,822
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Current portion of long-term debt	$	1	$	4	$	635	$	—	$	640
Current portion of operating lease liabilities	20		31		20		—		71
Accounts payable	1,016		125		1,006		(1,439)		708
Derivative instruments	852		13		—		(33)		832
Cash collateral received in support of energy risk management activities	51		—		—		—		51
Accrued expenses and other current liabilities	259		31		260		—		550
Total current liabilities	2,199		204		1,921		(1,472)		2,852
Other Liabilities
Long-term debt	248		24		5,535		—		5,807
Non-current operating lease liabilities	64		295		114		—		473
Nuclear decommissioning reserve	303		—		—		—		303
Nuclear decommissioning trust liability	390		—		—		—		390
Derivative instruments	382		1		—		(13)		370
Deferred income taxes	—		15		—		—		15
Other non-current liabilities	438		120		518		—		1,076
Total other liabilities	1,825		455		6,167		(13)		8,434
Total Liabilities	4,024		659		8,088		(1,485)		11,286
Stockholders’ Equity	3,778		1,502		1,536		(5,280)		1,536
Total Liabilities and Stockholders’ Equity	$	7,802	$	2,161	$	9,624	$	(6,765)	$	12,822

(a)All significant intercompany transactions have been eliminated in consolidation

40

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Cash Flows from Operating Activities
Net income/(loss)	$	269	$	(4)	$	121	$	(265)	$	121
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in earnings/(losses) of unconsolidated affiliates and consolidated subsidiaries	(3)		16		(262)		265		16
Depreciation and amortization	80		20		9		—		109
Accretion of asset retirement obligations	4		7		—		—		11
Provision for credit losses	24		—		—		—		24
Amortization of nuclear fuel	13		—		—		—		13
Amortization of financing costs and debt discount/premiums	—		—		6		—		6
Loss on debt extinguishment, net	—		—		1		—		1
Amortization of emission allowances and energy credits	2		5		—		—		7
Amortization of unearned equity compensation	—		—		5		—		5
Net gain on sale of assets and disposal of assets	(8)		(1)		(5)		—		(14)
Impairment losses	—		18		—		—		18
Changes in derivative instruments	(46)		—		—		—		(46)
Changes in deferred income taxes and liability for uncertain tax benefits	(14)		11		22		—		19
Changes in collateral deposits in support of energy risk management activities	4		5		—		—		9
Changes in nuclear decommissioning trust liability	8		—		—		—		8
Changes in other working capital	(130)		(14)		45		—		(99)
Net Cash Provided/(Used) by Operating Activities	203		63		(58)		—		208
Cash Flows from Investing Activities
Intercompany dividends	—		—		757		(757)		—
Capital expenditures	(50)		(6)		(10)		—		(66)
Net purchases of emission allowances	(8)		—		—		—		(8)
Investments in nuclear decommissioning trust fund securities	(121)		—		—		—		(121)
Proceeds from the sale of nuclear decommissioning trust fund securities	112		—		—		—		112
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	10		—		5				15
Net Cash (Used)/Provided by Investing Activities	(57)		(6)		752		(757)		(68)
Cash Flows from Financing Activities
Intercompany dividends and transfers	(63)		(56)		(638)		757		—
Payments of dividends to common stockholders	—		—		(74)		—		(74)
Payments for share repurchase activity	—		—		(179)		—		(179)
Purchase of and distributions to noncontrolling interests from subsidiaries	—		(2)		—		—		(2)
Proceeds from issuance of long-term debt	—		—		59		—		59
Repayments of long-term debt	(59)		(1)		—		—		(60)
Net proceeds from Revolving Credit Facility	—		—		552		—		552
Other	(3)		—		—		—		(3)
Net Cash (Used)/Provided by Financing Activities	(125)		(59)		(280)		757		293
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	21		(2)		414		—		433
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	37		21		327		—		385
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$	58	$	19	$	741	$	—	$	818

(a)All significant intercompany transactions have been eliminated in consolidation

41

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Operating Revenues
Total operating revenues	$	1,769	$	395	$	—	$	1	$	2,165
Operating Costs and Expenses
Cost of operations	1,358		283		9		1		1,651
Depreciation and amortization	54		23		8		—		85
Selling, general and administrative	122		16		56		—		194
Reorganization costs	—		—		13		—		13
Development costs	—		—		2		—		2
Total operating costs and expenses	1,534		322		88		1		1,945
Gain on sale of assets	1		—		—		—		1
Operating Income/(Loss)	236		73		(88)		—		221
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	10		—		299		(309)		—
Equity in losses of unconsolidated affiliates	—		(21)		—		—		(21)
Other income, net	4		1		7		—		12
Interest expense	(4)		(4)		(106)		—		(114)
Total other income/(expense)	10		(24)		200		(309)		(123)
Income from Continuing Operations Before Income Taxes	246		49		112		(309)		98
Income tax expense	—		—		4		—		4
Income from Continuing Operations	246		49		108		(309)		94
Income from discontinued operations, net of income tax	9		5		374		—		388
Net Income	$	255	$	54	$	482	$	(309)	$	482

(a)All significant intercompany transactions have been eliminated in consolidation

42

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Net Income	$	255	$	54	$	482	$	(309)	$	482
Other Comprehensive Income/(Loss)
Foreign currency translation adjustments, net	1		1		1		(2)		1
Defined benefit plans, net	—		—		(3)		—		(3)
Other comprehensive income/(loss)	1		1		(2)		(2)		(2)
Comprehensive Income	$	256	$	55	$	480	$	(311)	$	480

(a)All significant intercompany transactions have been eliminated in consolidation

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NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING BALANCE SHEETS

December 31, 2019

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
ASSETS
Current Assets
Cash and cash equivalents	$	—	$	20	$	325	$	—	$	345
Funds deposited by counterparties	32		—		—		—		32
Restricted cash	5		1		2		—		8
Accounts receivable, net	1,293		239		233		(740)		1,025
Inventory	272		111		—		—		383
Derivative instruments	856		45		—		(41)		860
Cash collateral paid in support of energy risk management activities	182		8		—		—		190
Prepayments and other current assets	170		8		67		—		245
Total current assets	2,810		432		627		(781)		3,088
Property, plant and equipment, net	1,483		952		158		—		2,593
Other Assets
Investment in subsidiaries	710		—		4,785		(5,495)		—
Equity investments in affiliates	—		388		—		—		388
Operating lease right-of-use assets, net	81		261		122		—		464
Goodwill	359		220		—		—		579
Intangible assets, net	375		414		—		—		789
Nuclear decommissioning trust fund	794		—		—		—		794
Derivative instruments	308		15		—		(13)		310
Deferred income taxes	421		(19)		2,884		—		3,286
Other non-current assets	145		30		65		—		240
Total other assets	3,193		1,309		7,856		(5,508)		6,850
Total Assets	$	7,486	$	2,693	$	8,641	$	(6,289)	$	12,531
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Current portion of long-term debt	$	—	$	5	$	83	$	—	$	88
Current portion of operating lease liabilities	20		32		21		—		73
Accounts payable	918		141		403		(740)		722
Derivative instruments	797		25		—		(41)		781
Cash collateral received in support of energy risk management activities	32		—		—		—		32
Accrued expenses and other current liabilities	280		44		339		—		663
Total current liabilities	2,047		247		846		(781)		2,359
Other Liabilities
Long-term debt	302		28		5,473		—		5,803
Non-current operating lease liabilities	64		301		118		—		483
Nuclear decommissioning reserve	298		—		—		—		298
Nuclear decommissioning trust liability	487		—		—		—		487
Derivative instruments	334		1		—		(13)		322
Deferred income taxes	—		17		—		—		17
Other non-current liabilities	399		153		532		—		1,084
Total other liabilities	1,884		500		6,123		(13)		8,494
Total Liabilities	3,931		747		6,969		(794)		10,853
Redeemable noncontrolling interest in subsidiaries	—		20		—		—		20
Stockholders’ Equity	3,555		1,926		1,672		(5,495)		1,658
Total Liabilities and Stockholders’ Equity	$	7,486	$	2,693	$	8,641	$	(6,289)	$	12,531

(a)All significant intercompany transactions have been eliminated in consolidation

44

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Cash Flows from Operating Activities
Net income	$	255	$	54	$	482	$	(309)	$	482
Income from discontinued operations	9		5		374		—		388
Income from continuing operations	246		49		108		(309)		94
Adjustments to reconcile net income to cash provided by operating activities:
Distributions from and equity in earnings/(losses) of unconsolidated affiliates and consolidated subsidiaries	(10)		21		(299)		309		21
Depreciation and amortization	54		23		8		—		85
Accretion of asset retirement obligations	5		2		—		—		7
Provision for credit losses	23		3		—		—		26
Amortization of nuclear fuel	13		—		—		—		13
Amortization of financing costs and debt discount/premiums	—		—		7		—		7
Amortization of emission allowances and energy credits	6		—		—		—		6
Amortization of unearned equity compensation	—		—		4		—		4
Net loss on sale of assets and disposal of assets	—		—		3		—		3
Changes in derivative instruments	(29)		5		9		—		(15)
Changes in deferred income taxes and liability for uncertain tax benefits	—		1		(3)		—		(2)
Changes in collateral deposits in support of energy risk management activities	(114)		(9)		—		—		(123)
Changes in nuclear decommissioning trust liability	9		—		—		—		9
Changes in other working capital	(211)		(137)		114		—		(234)
Cash used by continuing operations	(8)		(42)		(49)		—		(99)
Cash provided/(used) by discontinued operations	17		(9)		—		—		8
Net Cash Provided/(Used) by Operating Activities	9		(51)		(49)		—		(91)
Cash Flows from Investing Activities
Intercompany dividends	—		—		311		(311)		—
Payments for acquisitions of businesses	(16)		—		—		—		(16)
Capital expenditures	(36)		(6)		(7)		—		(49)
Investments in nuclear decommissioning trust fund securities	(122)		—		—		—		(122)
Proceeds from the sale of nuclear decommissioning trust fund securities	113		—		—		—		113
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	1		404		908		—		1,313
Net distributions from investments in unconsolidated affiliates	—		4		—		—		4
Contributions to discontinued operations	—		(44)		—		—		(44)
Other	—		—		(1)		—		(1)
Cash (used)/provided by continuing operations	(60)		358		1,211		(311)		1,198
Cash used by discontinued operations	—		(2)		—		—		(2)
Net Cash (Used)/Provided by Investing Activities	(60)		356		1,211		(311)		1,196
Cash Flows from Financing Activities
Intercompany dividends and transfers	(4)		(290)		(17)		311		—
Payment of dividends to common stockholders	—		—		(8)		—		(8)
Payments for share repurchase activity	—		—		(783)		—		(783)
Net distributions to noncontrolling interests from subsidiaries	—		(1)		—		—		(1)
Proceeds from issuance of common stock	—		—		2		—		2
Payments for long-term debt	—		(33)		(4)		—		(37)
Cash used by continuing operations	(4)		(324)		(810)		311		(827)
Cash provided by discontinued operations	—		43		—		—		43
Net Cash Used by Financing Activities	(4)		(281)		(810)		311		(784)
Change in cash from discontinued operations	17		32		—		—		49
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	(72)		(8)		352		—		272
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	95		38		480		—		613
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$	23	$	30	$	832	$	—	$	885

(a)All significant intercompany transactions have been eliminated in consolidation

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ITEM 2 — MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

As you read this discussion and analysis, refer to NRG's Condensed Consolidated Statements of Operations to this Form 10-Q, which presents the results of operations for the three months ended March 31, 2020 and 2019. Also refer to NRG's 2019 Form 10-K, which includes detailed discussions of various items impacting the Company's business, results of operations and financial condition, including: Introduction and Overview section; NRG's Business Strategy section; Business section, including how regulation, weather, and other factors affect NRG's business; and Critical Accounting Policies and Estimates section.

The discussion and analysis below has been organized as follows:

•Executive summary, including introduction and overview, business strategy, and changes to the business environment during the period, including environmental and regulatory matters;

•Results of operations;

•Financial condition, addressing liquidity position, sources and uses of liquidity, capital resources and requirements, commitments, and off-balance sheet arrangements; and

•Known trends that may affect NRG's results of operations and financial condition in the future.

The Company determined in prior years that the following businesses were discontinued operations and recast prior periods to present their results in the corporate segment:

•South Central Portfolio

•NRG Yield, Inc. and its Renewables Platform

•Carlsbad

•GenOn

Executive Summary

Introduction and Overview

NRG Energy, Inc., or NRG or the Company, is an integrated power company built on dynamic retail brands with diverse generation assets. NRG brings the power of energy to customers by producing and selling electricity and related products and services in major competitive power markets in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG is a customer-driven business focused on perfecting the integrated model by balancing retail load with generation supply within its deregulated markets. The Company sells energy, services, and innovative, sustainable products and services directly to retail customers under the names NRG, Reliant, Green Mountain Energy, Stream, and XOOM Energy, as well as other brand names owned by NRG, supported by approximately 23,000 MW of generation as of March 31, 2020. NRG was incorporated as a Delaware corporation on May 29, 1992.

As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources.

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The following table summarizes NRG's generation portfolio in MW as of March 31, 2020 by operating segment:

Generation Type	Texas	East	West/Other (a)(b)	Total
Natural gas	4,759	2,686	2,308	9,753
Coal	4,174	3,140	605	7,919
Oil	—	3,600	—	3,600
Nuclear	1,126	—	—	1,126
Utility Scale Solar	—	—	321	321
Battery Storage & Distributed Solar	2	—	60	62
Total generation capacity (c)	10,061	9,426	3,294	22,781

(a) Includes 1,153 MW for the Cottonwood facility that was sold to Cleco on February 4, 2019, which the company is leasing until 2025

(b) The Distributed Solar figure in West/Other includes the aggregate production capacity of installed and activated residential solar energy systems

(c) 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

COVID-19

In March 2020, the World Health Organization categorized COVID-19 as a pandemic and the President of the United States declared the COVID-19 outbreak a national emergency. Electricity has been deemed a ‘critical and essential business operation’ under various state and federal governmental COVID-19 mandates. NRG remains focused on protecting the health and well-being of its employees, while supporting its customers and the communities in which it operates and assuring the continuity of its operations. In addition, on April 1, 2020, NRG committed $2 million to COVID-19 relief efforts, including funding for urgently needed safety equipment supporting first responders, as well as funds that aid local communities and teachers. The Company also allocated additional funding to the NRG Employee Relief Fund to assist employees adversely impacted by natural disasters and other extraordinary events.

NRG activated its Crisis Management Team ("CMT") in January 2020, which proactively began managing the Company's response to the impacts of COVID-19. The CMT implemented the business continuity plans for the Company and has taken a variety of measures to ensure the ongoing availability of the Company’s services, while maintaining the Company's commitment to its core values of health and safety. Pursuant to the Company’s Infectious Disease & Pandemic Policy, NRG implemented restrictions on business travel and face-to-face sales channels, instituted remote work practices and enhanced cleaning and hygiene protocols in all of its facilities. In order to effectively serve the Company’s customers, select essential employees and contractors are continuing to report to plant and certain office locations. The Company is also requiring pre-entry screening, including temperature checks, separation of work crews, additional personal protective equipment for employees and contractors when social distancing cannot be maintained, and a ban on all non-essential visitors. As a result of these business continuity measures, the Company has not experienced any material disruptions in its ability to continue its business operations to date.

In order to support our employees, the Company also established a communication protocol in January 2020, including a central information hub on its intranet, made telehealth services available, and activated its Emergency Relief Fund for financially-impacted employees.

NRG believes it has sufficient liquidity on hand to continue business operations. As disclosed in the Liquidity and Capital Resources section, the Company has total available liquidity of $1,950 million as of March 31, 2020, consisting of cash on hand and a revolving credit facility.

While the pandemic may present new risks to the Company’s business, there was not a material adverse impact on the Company’s first quarter 2020 results of operations.

Following the President's declaration of COVID-19 outbreak being a national emergency, the Governors of the majority of states in which we operate issued executive orders that every person should, except where necessary to provide or obtain essential services, minimize social gatherings and minimize in-person contact with people who are not in the same household. The impact of these orders closed schools, restaurants and bars, except in certain cases for takeout, and other non-essential businesses. As a result, there has been a reduction in load within the markets in which we operate and we expect demand uncertainty to continue until the economy recovers.

Specifically, in Texas, the PUCT adopted the COVID-19 Electricity Relief Program (“ERP”), which, among other things, creates an assistance program for eligible residential customers in the competitive retail electric market who are experiencing economic hardship as a result of the pandemic. Consistent with the PUCT orders, NRG is waiving late fees for residential and

47

small commercial customers and offering deferred payment plans to those customers, as well as temporarily suspending disconnect and reconnect fees.

The situation surrounding COVID-19 remains fluid and the potential for a material adverse impact on the Company increases the longer the virus impacts the level of economic activity in the United States and globally. For this reason, NRG cannot reasonably estimate with any degree of certainty the full impact COVID-19, or any resurgence of COVID-19, may have on the Company’s results of operations, financial position, and liquidity. The extent to which the COVID-19 pandemic may impact the Company’s business, operating results, financial condition, risk exposure or liquidity will depend on future developments, including the duration of the outbreak, travel restrictions, business and workforce disruptions, any resurgence of the outbreak and the effectiveness of actions taken to contain, mitigate and treat the disease. See Part II, Item 1A - Risk Factors.

Strategy

NRG's strategy is to maximize stockholder value through the safe production and sale of reliable power to its customers in the markets served by the Company, while positioning the Company to provide innovative solutions to the end-use energy consumer. This strategy is intended to enable the Company to optimize the integrated model to generate stable and predictable cash flow, significantly strengthen earnings and cost competitiveness, and lower risk and volatility.

To effectuate the Company’s strategy, NRG is focused on: (i) serving the energy needs of end-use residential, commercial and industrial customers in competitive markets through multiple brands and channels with a variety of retail energy products and services differentiated by innovative features, premium service, sustainability, and loyalty/affinity programs; (ii) offering innovative and renewable energy solutions for customers; (iii) excellence in operating performance of its existing assets; (iv) optimal hedging of NRG's net retail and generation positions; and (v) engaging in disciplined and transparent capital allocation.

Sustainability is an integral part of NRG's strategy and ties directly to business success, reduced risks and brand value. On September 24, 2019, NRG announced the acceleration of its science-based GHG emissions reduction goals to align with prevailing climate science, limiting warming to a 1.5 degree Celsius scenario. Under its new GHG emissions reduction timeline, NRG is targeting to achieve a 50% reduction by 2025 and net-zero emissions by 2050.

Energy Regulatory Matters

The Company’s regulatory matters are described in the Company’s 2019 Form 10-K in Item 1, Business — Regulatory Matters. These matters have been updated below and in Note 17, Regulatory Matters, of this Form 10-Q.

As participants in wholesale and retail energy markets and owners of power plants, 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 generating 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 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.

State Energy Regulation

State Out-Of-Market Subsidy Proposals — NRG has opposed efforts to provide out-of-market subsidies for nuclear generators and intends to continue opposing them in the future. Nuclear subsidy programs have either been implemented, are in the process of being implemented, or have been introduced for discussion in Connecticut, Illinois, New Jersey, New York, Ohio and Pennsylvania. NRG and others were unsuccessful in challenging the legality of the subsidies in Illinois and New York, and the U.S. Supreme Court has declined to review the lower court decisions. Through our PJM trade organization, NRG is also currently participating in an appeal of NJBPU's Order regarding ZECs.

Illinois Legislature Considers Changes to the Generator Business Model — In Illinois, in addition to legislation to provide more subsidies to nuclear power plants in the state, the Legislature is also considering several bills that may affect NRG’s wholesale and retail revenues, including a bill that would replace the PJM capacity market with a state-run capacity market. Due to the COVID-19 pandemic in 2020, the legislative sessions have been curtailed, and the Illinois General Assembly has primarily been focused on essential bills needed to address the pandemic. NRG continues to oppose the ongoing legislative effort and supports a competitive clean energy market design that would competitively reduce greenhouse gas

48

emission through the procurement of clean energy resources without sacrificing the consumer benefits of the competitive PJM market design.

Regional Regulatory Developments

NRG is affected by rule and tariff changes that occur in the ISO regions. For further discussion on regulatory developments see Note 17, Regulatory Matters, to the Condensed Consolidated Financial Statements.

East/West

PJM

Capacity Market Reforms Filing — On December 19, 2019, FERC issued an order on the pending proposals to reform the PJM market to mitigate subsidized resources in the capacity market. FERC directed PJM to apply the Minimum Offer Price Rule, or MOPR, to new and existing resources receiving state subsidies and subject them to default offer floor prices in their capacity bids. The Order provided for various category specific exemptions to the MOPR, as well as a unit specific exemption, which permits any resource that can justify an offer lower than the default offer price floor to submit such capacity bids to PJM for review. As part of the December 19, 2019 FERC Order, FERC gave PJM 90 days to make a compliance filing and submit tariff language to reflect the requirements of the Order and directed PJM to include in this filing a timetable for when it proposes to hold the previously postponed Base Residual Auctions for the 2022/2023 and 2023/2024 delivery years. Multiple parties filed for rehearing and clarification. FERC ruled on April 16, 2020 to largely uphold its December 2019 Order, after which, multiple parties filed for appeal at various circuit courts. On March 18, 2020, PJM made its compliance filing, which among other things, stated that it would hold its next capacity auction six and a half months after a ruling on the compliance filing. Comments to the compliance filing are extended until May 15, 2020. Pursuant to the April 16, 2020 Order, PJM is required to make an additional compliance filing within 45 days of that Order. Subjecting subsidized resources to default offer floors in the capacity market should protect the market from further price suppression. The impact of these changes on capacity markets outcomes depends on, among other factors, bidding behavior, load forecast changes, new resource entry, and existing resource exit.

New Jersey Board of Public Utilities’ Investigation on Resource Adequacy Alternatives — On March 25, 2020, the NJBPU initiated a proceeding to investigate resource adequacy alternatives for New Jersey. The proceeding is pending. Any actions taken by the NJBPU could affect market prices in PJM.

New England

ISO-NE Inventoried Energy Compensation Proposal — On March 25, 2019, ISO-NE proposed an interim measure to address near-term fuel security concerns. The proposal would provide payment for inventoried energy during winter months. NRG protested, among other things, the payment rate proposed by the ISO for inventoried energy. After ISO-NE supplemented its filings due to a deficiency notice from FERC, NRG filed comments to ISO-NE's response on June 27, 2019. On August 6, 2019, FERC issued a notice stating that due to lack of quorum, ISO-NE's proposal became effective by operation of law. Multiple parties filed for rehearing. Those rehearings were denied. Subsequently, multiple parties filed an appeal of FERC's Order to the Court of Appeals for the D.C. Circuit. On April 14, 2020, FERC filed a motion for a voluntary remand. On April 21, 2020, the Court of Appeals for the D.C. Circuit remanded the case back to FERC. The case is pending. ISO-NE's proposal will affect future capacity market prices and the compensation that fuel secure units receive.

ISO-NE Fuel Security Improvements Proposal — On April 15, 2020, ISO-NE filed a compliance filing proposing improvements to the wholesale market design to address winter fuel security issues as directed by FERC. The outcome of the matter will affect market prices in ISO-NE.

Connecticut Department of Energy and Environmental Protection Integrated Resource Plan Proceeding — In Connecticut's ongoing proceeding related to its Integrated Resource Plan, the Connecticut Department of Energy and Environmental Protection issued a notice of technical meeting and opportunity for public comment on January 8, 2020 seeking comment on two issues: (1) the compatibility of state goals and those of ISO-NE and (2) the possibility of alternative market designs that would be more in line with the state's goals. On January 22, 2020, NRG presented its thoughts and on February 5, 2020, NRG filed comments advocating for competitive markets and proposed its competitive clean energy market design. On February 28, 2020, the Connecticut Departments of Energy and Environmental Protection held a second technical meeting.

New York

New York State Public Service Commission Retail Energy Market Proceedings — On February 23, 2016, the NYSPSC issued an order referred to as the Retail Reset Order. Among other things, the Retail Reset Order placed a price cap on energy supply offers and imposed burdensome new regulations on customers. Various parties have challenged the NYSPSC's authority to regulate prices charged by competitive suppliers. On May 9, 2019 the New York Court of Appeals, the state’s highest tribunal, issued a decision affirming the NYSPSC’s authority to regulate ESCO’s prices as a condition of access to the utilities’

49

infrastructure. In conjunction with the court challenge, the NYSPSC also noticed an evidentiary proceeding. On December 12, 2019, the NYSPSC issued an order adopting changes to the retail access energy market based on the record in the evidentiary proceeding. The Order limits ESCO offers to three compliant products: guaranteed savings from the utility default rate, a fixed term capped at 5% of the rolling 12-month average utility default rate, or NY-sourced renewable energy that is at least 50% greater than the prevailing NY Renewable Energy Standard for load serving entities. The Order also establishes new ESCO eligibility criteria and certification process, as well as re-certification of current ESCOs. The NYSPSC ordered compliance effective February 10, 2020. On January 13, 2020, multiple parties filed motions for rehearing and a stay of the Order. On March 2, 2020, the NYSPSC issued a notice seeking comments by April 13, 2020 on the petitions for rehearing. On January 17, 2020, NRG filed a request for a 90-day extension of the February 10, 2020 effective date, and, on January 22, 2020, the NYSPSC granted an extension for compliance to May 11, 2020. On March 17, 2020, NRG filed a request for an additional 90-day extension of the effective date of the Order. On April 7, 2020, the NYSPSC granted the extension with a new effective date of August 9, 2020. The limited offerings imposed by the Order, as issued, may negatively impact the Company's retail sales in New York.

New York State Public Service Commission Resource Adequacy Proceeding — On August 8, 2019, the NYSPSC established an investigation into New York's resource adequacy market design. On November 8, 2019, NRG filed comments and recommendations, specifically putting forth NRG's Forward Clean Energy Market Proposal, that would allow New York to maintain a reliable system while advancing its environmental goals. The proceeding is pending. Any actions taken by the NYSPSC could affect market design and market prices in New York.

Independent Power Producers of New York ("IPPNY") Complaint — On January 9, 2017, EPSA requested FERC to promptly direct NYISO to file tariff provisions to address pending market concerns related to out-of-market payments to existing generation in NYISO. On April 5, 2018, EPSA filed a motion for renewed request for expedited action on the MOPR. On February 20, 2020, FERC rejected IPPNY's rehearing request asking FERC to direct NYISO to require that capacity from existing generation resources that would have exited the market but for out-of-market payments be mitigated. FERC found that NYISO complied with the initial order to establish a stakeholder process to consider whether buyer side mitigation measures are needed to address these agreements. Failure to implement buyer-side mitigation measures could result in uneconomic entry, which artificially decreases capacity prices below competitive market levels.

New York Buyer Side Mitigation Proceedings — On February 20, 2020, FERC issued multiple orders pertaining to the NYISO capacity market. The orders narrowed certain exemptions to buyer side mitigation measures. Specifically, FERC stated that certain renewable and self-supply resources would be exempt from offer floor mitigation but rejected NYISO’s proposal of a 1,000 MW cap on renewable resources that could qualify for the exemption. FERC ordered NYISO to make a compliance filing narrowly tailoring its cap. On April 7, 2020, NYISO submitted its compliance filing proposing a formula that sets the Renewable Exemption Limit based generally on projected load growth and generator requirements. On April 28, 2020, the generator trade association filed comments seeking clarification related to the Renewable Exemption Limit formula. FERC also rejected a complaint to exempt new electric storage resources. It also rejected a blanket exemption to demand response providers currently subject to mitigation but granted a request for new demand response to receive a blanket exemption from the buyer side mitigation measures. Implementation of buyer side mitigation measures to address price suppression provides more accurate capacity price signals in the competitive market.

Texas

ORDC Reforms — In January 2019, the PUCT directed ERCOT to implement changes to its scarcity pricing structure, known as the ORDC, which is designed to increase the likelihood 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 became effective on March 1, 2019 and the second phase was put into effect on March 1, 2020. To date, the ORDC reforms have produced a noticeable improvement in scarcity pricing.

Public Utilities Commission of Texas’ Actions Related to COVID-19 — On March 26, 2020, the PUCT adopted the COVID-19 Electricity Relief Program ("ERP") aimed to mitigate the impact of COVID-19 on residential customers in the competitive retail electric market who are experiencing economic hardship as a result of the pandemic. The COVID-19 ERP protects residential customers deemed eligible by the PUCT’s third party administrator from disconnection for nonpayment until July 17, 2020, unless extended by the PUCT. The COVID-19 ERP also establishes an emergency fund to allow Retail Electric Providers ("REPs") to recover a certain amount of credit losses incurred while continuing to serve these customers. REPs may recover from the fund a proxy for a portion of their costs (at a fixed rate of $0.04 per kWh) related to eligible residential customers with an unpaid, past due electric bill subject to a disconnection for non-payment notice. On March 26, 2020, the PUCT issued an order that required REPs to suspend charging residential and small commercial customers late fees as part of the response to the Governor's disaster declaration relating to COVID-19. On April 17, 2020, the PUCT narrowed the scope of the late fees waiver to just residential customers, with a May 15, 2020 end date unless extended by the PUCT.

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CAISO

Resource Adequacy Central Procurement Proceeding — On March 26, 2020, a CPUC Administrative Law Judge issued a proposed decision adopting implementation details for the central procurement of multi-year local resource adequacy capacity to begin for the 2023 compliance year for the PG&E and Southern California Edison ("SCE") service areas, under which PG&E and SCE would be the respective central procurement entities. The March 26, 2020 proposed decision declined to adopt a central procurement framework for the San Diego Gas and Electric service area and rejected a proposed settlement filed by various entities including NRG, which included the expansion of multi-year requirements to all categories of resource adequacy (system, flexible and local) and a residual procurement model for the central procurement entity. NRG submitted comments opposing the March 26, 2020 proposed decision on April 15, 2020. The rulemaking remains pending. The ultimate decision in this docket could fundamentally change the resource adequacy market in California.

Environmental Regulatory Matters

NRG is subject to numerous environmental laws in the development, construction, ownership and operation of power plants. These laws generally require that governmental permits and approvals be obtained before construction and 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 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. The COVID-19 pandemic may prevent us from complying with certain of our environmental requirements, which federal and state regulators have recognized. 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 review by the EPA, including ash storage and disposal requirements, NAAQS revisions and implementation and effluent limitation guidelines. 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. The Company’s environmental matters are described in the Company’s 2019 Form 10-K in Item 1, Business - Environmental Matters and Item 1A, Risk Factors. These matters have been updated in Note 18, Environmental Matters, to the Condensed Consolidated Financial Statements of this Form 10-Q and as follows.

Air 

The CAA and the resulting 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 classified by the EPA as not achieving certain NAAQS (non-attainment areas). The relevant NAAQS have 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.

Clean Power Plan — The attention in recent years on GHG emissions has resulted in federal regulations and state legislative and regulatory action. In October 2015, the EPA finalized the CPP, addressing GHG emissions from existing EGUs. On February 9, 2016, the U.S. Supreme Court stayed the CPP. In July 2019, EPA promulgated the ACE rule, which rescinded the CPP, which had sought to broadly regulate CO2 emissions from the power sector. The ACE rule requires states that have coal-fired EGUs to develop plans to seek heat rate improvements from coal-fired EGUs. Texas, Illinois and Delaware have started working on plans to comply with the ACE rule. Numerous parties have challenged the ACE rule in the D.C. Circuit and numerous parties have filed petitions for reconsideration with the EPA.

 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 amends 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. On August 14, 2019, the EPA proposed targeted changes to the April 2015 Rule including changes to address the August 2018 D.C. Circuit decision. On December 2, 2019, the EPA released for comment "Closure Part A Proposal" to revise the CCR Rule to address the D.C. Circuit's 2018 decision regarding the adequacy of clay-lined impoundments, obligations to close all unlined impoundments and related deadlines. On February 20, 2020, the EPA proposed the framework for developing and implementing a federal permit program for states that are not approved to administer the CCR rule. On March 3, 2020, the EPA proposed for comment "A Holistic Approach to Closure Part B," which proposes procedures for obtaining approval to operate

51

existing impoundments with alternative liners. We anticipate that the EPA will promulgate new regulations to address these issues and others as it reconsiders other aspects of the existing rule. The Company will provide estimates of the cost of compliance after the rule is revised.

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 Note 16, Commitments and Contingencies, to the Condensed Consolidated Financial Statements.

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 has been extended twice through addendums to cover payments through December 31, 2019. STPNOC expects the settlement to be extended for another three-year period. 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 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. Texas is currently in a compact with the state of Vermont, and the compact low-level waste facility located in Andrews County in Texas 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.

Effluent Limitations Guidelines — In November 2015, the EPA revised the Effluent Limitations Guidelines for Steam Electric Generating Facilities, which would have imposed more stringent requirements (as individual permits were renewed) for wastewater streams from FGD, fly ash, bottom ash, and flue gas mercury control. On September 18, 2017, the EPA promulgated a final rule that, among other things, postpones 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. On April 12, 2019, the United States Court of Appeals for the Fifth circuit addressed challenges to the rule brought by several environmental groups related to legacy wastewaters and coal ash leachate and remanded portions of the rule to the EPA. On November 22, 2019, the EPA proposed amending the 2015 ELG rule by: (x) decreasing the stringency of the selenium limit (but increasing the stringency of the nitrate and mercury limits) for FGD wastewater; (y) relaxing the zero-discharge requirement for bottom ash transport water; and (z) changing several deadlines. The Company has eliminated its estimate of the environmental capital expenditures that would have been required to comply with permits incorporating the revised guidelines. The Company will revisit these estimates after the EPA revises the rule.

Regional Environmental Developments

NY NOx — On December 31, 2019, the New York State Department of Environmental Conservation finalized a more stringent NOx regulation that will result in the retirement of the Company's combustion turbines in Astoria, New York in 2023.

Ash Regulation in Illinois — On July 30, 2019, Illinois enacted legislation that will require the state to promulgate regulations regarding coal ash at surface impoundments. On March 30, 2020, the state released its proposed implementing regulations. We expect the state to promulgate the final implementing regulations in March 2021, at which time regulated entities will then prepare and submit permit applications.

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Significant Events

The following significant events have occurred during 2020 as further described within this Management's Discussion and Analysis and the Condensed Consolidated Financial Statements:

Share Repurchases

During the three months ended March 31, 2020, the Company completed $177 million of share repurchases at an average price of $34.20 per share, including $27 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuance. Through May 7, 2020, the Company completed an additional $47 million of share repurchases at an average price of $29.33 per share.

Renewable Power Purchase Agreements

During 2019, NRG began execution of its strategy to procure mid to long-term generation through renewable power purchase agreements. As of March 31, 2020, NRG has entered into PPAs totaling approximately 1,600 MWs with third-party project developers and other counterparties. The tenor of these agreements is an average of eleven years. The Company expects to continue evaluating and executing similar agreements that support the needs of the business.

COVID-19

For discussion of COVID-19 related considerations, refer to Management’s Discussion and Analysis of Financial Condition and Results of Operations – Executive Summary and Liquidity and Capital Resources

Trends Affecting Results of Operations and Future Business Performance

The Company’s trends are described in the Company’s 2019 Form 10-K in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations - Business Environment.

Changes in Accounting Standards

See Note 2, Summary of Significant Accounting Policies, to the Condensed Consolidated Financial Statements for a discussion of recent accounting developments.

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Consolidated Results of Operations

The following table provides selected financial information for the Company:

	Three months ended March 31,
(In millions, except as otherwise noted)	2020		2019		Change
Operating Revenues
Retail revenue	$	1,661	$	1,589	$	72
Energy revenue(a)	124		290		(166)
Capacity revenue(a)	149		156		(7)
Mark-to-market for economic hedging activities	(4)		20		(24)
Other revenues (a)(b)	89		110		(21)
Total operating revenues	2,019		2,165		(146)
Operating Costs and Expenses
Cost of Sales (c)	1,149		1,341		192
Mark-to-market for economic hedging activities	(48)		—		48
Contract and emissions credit amortization (c)	1		5		4
Operations and maintenance	293		248		(45)
Other cost of operations	62		57		(5)
Total cost of operations	1,457		1,651		194
Depreciation and amortization	109		85		(24)
Selling, general and administrative	209		194		(15)
Reorganization costs	3		13		10
Development costs	3		2		(1)
Total operating costs and expenses	1,781		1,945		164
Gain on sale of assets	6		1		5
Operating Income	244		221		23
Other (Expense)/Income
Equity in losses of unconsolidated affiliates	(11)		(21)		10
Impairment losses on investments	(18)		—		(18)
Other income, net	27		12		15
Interest expense	(98)		(114)		16
Total other expense	(100)		(123)		23
Income from Continuing Operations Before Income Taxes	144		98		46
Income tax expense	23		4		(19)
Income from Continuing Operations	121		94		27
Income from discontinued operations, net of income tax	—		388		(388)
Net Income	$	121	$	482	$	(361)
Business Metrics
Average natural gas price — Henry Hub ($/MMBtu)	$	1.95	$	3.15	(38)		%

(a) Includes gains and losses from financially settled transactions

(b) Includes trading gains and losses

(c) Includes amortization of SO₂ and NO_x credits and excludes amortization of RGGI credits  

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Management’s discussion of the results of operations for the three months ended March 31, 2020 and 2019

Electricity Prices

The following table summarizes average on peak power prices for each of the major markets in which NRG operates for the three months ended March 31, 2020 and 2019. The average on-peak power prices decreased across all regions due to mild winter weather and lower gas prices.

	Average on Peak Power Price ($/MWh)
	Three months ended March 31,
Region	2020		2019		Change %
Texas
ERCOT - Houston(a)	$	25.33	$	28.20	(10)	%
ERCOT - North(a)	24.43		28.03		(13)	%
East
NY J/NYC(b)	$	23.83	$	45.16	(47)	%
NEPOOL(b)	24.61		47.40		(48)	%
COMED (PJM)(b)	21.29		30.09		(29)	%
PJM West Hub(b)	22.47		33.79		(34)	%
West
MISO - Louisiana Hub(b)	$	22.14	$	32.84	(33)	%
CAISO - SP15(b)	28.64		50.42		(43)	%

^(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 ahead settlement prices as published by the respective ISOs

The following table summarizes average realized power prices for NRG, including the impact of settled hedges, for the three months ended March 31, 2020 and 2019:

	Average Realized Power Price ($/MWh)
	Three months ended March 31,
Region	2020		2019		Change %
East	$	17.75	$	31.48	(44)	%
West/Other	29.31		29.90		(2)	%

The average realized power prices fluctuated at different rates for the three months ended March 31, 2020 as compared to the same period in 2019 due to lower power and gas prices.

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, retail 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.

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The below tables present the composition and reconciliation of gross margin and economic gross margin for the three months ended March 31, 2020 and 2019:

	Three months ended March 31, 2020
($ In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Retail revenue	$	1,292	$	370	$	—	$	(1)	$	1,661
Energy revenue	5		45		75		(1)		124
Capacity revenue	—		134		15		—		149
Mark-to-market for economic hedging activities	—		(20)		15		1		(4)
Other revenue	61		10		20		(2)		89
Operating revenue	1,358		539		125		(3)		2,019
Cost of fuel	(103)		(55)		(36)		—		(194)
Purchased power	(265)		(152)		(6)		—		(423)
Other cost of sales(a)(b)	(462)		(91)		20		1		(532)
Mark-to-market for economic hedging activities	49		—		—		(1)		48
Contract and emission credit amortization	(1)		—		—		—		(1)
Gross margin	$	576	$	241	$	103	$	(3)	$	917
Less: Mark-to-market for economic hedging activities, net	49		(20)		15		—		44
Less: Contract and emission credit amortization, net	(1)		—		—		—		(1)
Economic gross margin	$	528	$	261	$	88	$	(3)	$	874
(a) Includes capacity and emissions credits
(b) Includes $429 million and $2 million of TDSP expense in Texas and East, respectively
Business Metrics
Mass Market electricity sales volume (GWh)	7,748		2,548		—				10,296
C&I electricity sales volume (GWh)	4,456		389		—				4,845
Natural gas sales volume (MDth)	—		10,509		—				10,509
Average retail Mass Market customer count (in thousands)	2,442		1,220		—				3,662
Ending retail Mass Market customer count (in thousands)	2,439		1,212		—				3,651
GWh sold	67		2,535		2,559				5,161
GWh generated:(a)
Coal	3,060		335		—				3,395
Gas	674		149		2,355				3,178
Nuclear	2,302		—		—				2,302
Oil	—		18		—				18
Total	6,036		502		2,355				8,893
(a) Includes owned generation, and excludes equity investments

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	Three months ended March 31, 2019
($ In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Retail revenue	$	1,253	$	338	$	—	$	(2)	$	1,589
Energy revenue	105		126		58		1		290
Capacity revenue	—		144		12		—		156
Mark-to-market for economic hedging activities	31		(15)		4		—		20
Other revenue	77		16		19		(2)		110
Operating revenue	1,466		609		93		(3)		2,165
Cost of fuel	(149)		(66)		(36)		—		(251)
Purchased power	(327)		(191)		—		—		(518)
Other cost of sales(a)(b)	(486)		(75)		(11)		—		(572)
Mark-to-market for economic hedging activities	(5)		3		2		—		—
Contract and emission credit amortization	(5)		—		—		—		(5)
Gross margin	$	494	$	280	$	48	$	(3)	$	819
Less: Mark-to-market for economic hedging activities, net	26		(12)		6		—		20
Less: Contract and emission credit amortization, net	(5)		—		—		—		(5)
Economic gross margin	$	473	$	292	$	42	$	(3)	$	804
(a) Includes capacity and emissions credits
(b) Includes $422 million and $3 million of TDSP expense in the Texas and East segments, respectively
Business Metrics
Mass Market electricity sales volume (GWh)	7,990		2,494		—				10,484
C&I electricity sales volume (GWh)	4,549		282		—				4,831
Natural gas sales volume (MDth)	—		10,547		—				10,547
Average retail Mass Market customer count (in thousands)	2,308		1,020		—				3,328
Ending retail Mass Market customer count (in thousands)	2,290		1,035		—				3,325
GWh sold	8,928		4,003		1,940				14,871
GWh generated:(a)
Coal	4,607		2,326		—				6,933
Gas	489		151		1,932				2,572
Nuclear	2,538		—		—				2,538
Oil	—		5		—				5
Renewables	—		—		8				8
Total	7,634		2,482		1,940				12.056
(a) Includes owned generation, and excludes equity investments

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The table below represents the weather metrics for the three months ended March 31, 2020 and 2019:

	Three months ended March 31,
Weather Metrics	Texas	East	West/Other (b)
2020
CDDs (a)	170	56	76
HDDs (a)	791	2,045	994
2019
CDDs	75	34	31
HDDs	1,041	2,457	1,192
10-year average
CDDs	104	35	46
HDDs	995	2,458	1,110

(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

(b) The West/Other weather metrics are comprised of the average of the CDD and HDD regional results for the West - California and West - South Central regions

Gross Margin and Economic Gross Margin

Gross margin increased $98 million and economic gross margin increased $70 million, both of which include intercompany sales, during the three months ended March 31, 2020, compared to the same period in 2019.

The tables below describe the changes in gross margin and economic gross margin by segment:

Texas

	(In millions)
Higher gross margin due to lower costs to serve the retail load, including $43 million driven by a reduction of power and fuel prices due to lower natural gas prices, and $15 million due to a 2% reduction in volumes	$	58
Higher gross margin due to a $35 million increase in revenue from the acquisition of Stream Energy in August 2019 and higher net rates of $34 million, driven by customer term, product and mix, partially offset by $38 million due to lower volumes of 115,000 MWhs from the unfavorable impact of weather	31
Lower gross margin from net sales of generation to third parties, as the Company's Texas generation was fully utilized to serve its retail customers in 2020	(19)
Lower gross margin due to the sale of emissions in 2019	(13)
Lower gross margin due to market optimization activities	(6)
Other	4
Increase in economic gross margin	$	55
Increase 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 amortization	4
Increase in gross margin	$	82

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East

	(In millions)
Lower gross margin due to a lower of cost or market adjustment on oil inventory in 2020	$	(29)
Lower gross margin primarily due to a 79% decrease in economic generation volumes primarily due to dark spread contractions and planned outages in 2019	(17)
Lower gross margin from market optimization activities	(13)
Lower gross margin due to a 24% decrease in New England generation capacity prices	(11)
Higher gross margin due to lower supply costs coupled with an increase in load contract volumes	19
Higher gross margin due to increased volumes from the acquisition of Stream Energy in August 2019	12
Higher gross margin due to lower supply costs driven by lower electricity and natural gas prices of approximately $8 per MWh, or $23 million, offset by lower revenues of approximately $3 per MWh, or $12 million	11
Other	(3)
Decrease in economic gross margin	$	(31)
Decrease in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges	(8)
Decrease in gross margin	$	(39)

West/Other

	(In millions)
Higher gross margin due to generation outage insurance proceeds received in 2020 for forced outages in 2019	$	30
Higher gross margin due to an extended forced outage at the Sunrise facility in 2019	10
Higher gross margin driven by increased California resource adequacy pricing and lower capacity purchases due to the Sunrise outage	7
Other	(1)
Increase in economic gross margin	$	46
Increase in mark-to-market for economic hedging primarily due to net unrealized gains/losses on open positions related to economic hedges	9
Increase in gross margin	$	55

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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 $24 million during the three months ended March 31, 2020, compared to the same period in 2019.

The breakdown of gains and losses included in operating revenues and operating costs and expenses by segment was as follows:

	Three months ended March 31, 2020
(In millions)	Texas		East		West/Other		Eliminations		Total
Mark-to-market results in operating revenues
Reversal of previously recognized unrealized (gains) on settled positions related to economic hedges	$	—	$	(14)	$	(5)	$	1	$	(18)
Net unrealized (losses)/gains on open positions related to economic hedges	—		(6)		20		—		14
Total mark-to-market (losses)/gains in operating revenues	$	—	$	(20)	$	15	$	1	$	(4)
Mark-to-market results in operating costs and expenses
Reversal of previously recognized unrealized losses on settled positions related to economic hedges	$	22	$	6	$	—	$	(1)	$	27
Reversal of acquired loss/(gain) positions related to economic hedges	2		(1)		—		—		1
Net unrealized gains/(losses) on open positions related to economic hedges	25		(5)		—		—		20
Total mark-to-market gains in operating costs and expenses	$	49	$	—	$	—	$	(1)	$	48

	Three months ended March 31, 2019
(In millions)	Texas		East		West/Other		Eliminations		Total
Mark-to-market results in operating revenues
Reversal of previously recognized unrealized losses/(gains) on settled positions related to economic hedges	$	11	$	(20)	$	1	$	—	$	(8)
Net unrealized gains on open positions related to economic hedges	20		5		3		—		28
Total mark-to-market gains/(losses) in operating revenues	$	31	$	(15)	$	4	$	—	$	20
Mark-to-market results in operating costs and expenses
Reversal of previously recognized unrealized losses/(gains) on settled positions related to economic hedges	$	23	$	5	$	(1)	$	—	$	27
Reversal of acquired (gain) positions related to economic hedges	—		(2)		—		—		(2)
Net unrealized (losses)/gains on open positions related to economic hedges	(28)		—		3		—		(25)
Total mark-to-market (losses)/gains in operating costs and expenses	$	(5)	$	3	$	2	$	—	$	—

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.

For the three months ended March 31, 2020, the $4 million loss in operating revenues from economic hedge positions was driven primarily by the reversal of previously recognized unrealized gains on contracts that settled during the period, largely offset by an increase in the value of open positions, as a result of gains on power positions due to declines in West/Other power prices. The $48 million gain in operating costs and expenses 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 gains on ERCOT heat rate positions due to heat rate expansion.

For the three months ended March 31, 2019, the $20 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 gains on power positions due to declines in power prices, partially offset by the reversal of previously recognized unrealized gains on contracts that settled during the period. The flat change in operating costs and expenses from economic hedge positions was driven primarily by the reversal of previously recognized unrealized losses on contracts that settles during the period, offset by a decrease in the value of open positions as a result of ERCOT heat rate contraction and the reversal of acquired gain positions.

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In accordance with ASC 815, the following table represents the results of the Company's financial and physical trading of energy commodities for the three months ended March 31, 2020 and 2019. The realized and unrealized financial and physical trading results are included in operating revenue. The Company's trading activities are subject to limits based on the Company's Risk Management Policy.

	Three months ended March 31,
(In millions)	2020		2019
Trading gains
Realized	$	7	$	16
Unrealized	11		7
Total trading gains	$	18	$	23

Operations and Maintenance Expense

Operations and maintenance expense are comprised of the following:

(In millions)	Texas		East		West/Other		Corporate		Eliminations		Total
Three months ended March 31, 2020	$	175	$	88	$	30	$	2	$	(2)	$	293
Three months ended March 31, 2019	151		67		28		3		(1)		248

Operations and maintenance expense increased by $45 million for the three months ended March 31, 2020, compared to the same period in 2019, due to the following:

	(In millions)
Increase due to the final settlement of the asbestos liability for Midwest Generation and the resulting reduction of the accrual in 2019	$	27
Increase in outages primarily due to planned outages at STP and Midwest Generation in 2020	25
Increase due to acquisition of Stream Energy in August 2019	9
Decrease in variable chemical costs due to a reduction in East generation volumes	(12)
Other	(4)
Increase in operations and maintenance expense	$	45

Other Cost of Operations

Other cost of operations are comprised of the following:

(In millions)	Texas		East		West/Other		Total
Three months ended March 31, 2020	$	33	$	26	$	3	$	62
Three months ended March 31, 2019	33		20		4		57

Increase in other cost of operations is primarily due to additional ARO expense of $5 million at the Joliet plant, as a result of regulatory requirements.

Depreciation and Amortization

Depreciation and amortization are comprised of the following:

(In millions)	Texas		East		West/Other		Corporate		Total
Three months ended March 31, 2020	$	59	$	33	$	8	$	9	$	109
Three months ended March 31, 2019	40		26		11		8		85

Depreciation and amortization increased by $24 million, primarily due to the acquisition of Stream Energy in August 2019.

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Selling, General and Administrative

Selling, general and administrative expenses are comprised of the following:

(In millions)	Texas		East		West/Other		Corporate		Total
Three months ended March 31, 2020	$	130	$	64	$	9	$	6	$	209
Three months ended March 31, 2019	117		65		7		5		194

Selling, general and administrative expenses increased by $15 million for the three months ended March 31, 2020, compared to the same period in 2019, primarily due to the acquisition of Stream Energy in August 2019.

Reorganization Costs

Reorganization costs, primarily related to employee severance and contract cancellation costs, decreased by $10 million for the three months ended March 31, 2020, compared to the same period in 2019, driven primarily by significant achievement of the operations and cost excellence portion of the Transformation Plan during 2019.

Gain on Sale of Assets

A gain on sale of assets of $6 million was recorded for the three months ended March 31, 2020, related to the sale of land and investments in January 2020.

Equity in losses of unconsolidated affiliates

Equity in losses of unconsolidated affiliates decreased by $10 million for the three months ended March 31, 2020, compared to the three months ended March 31, 2019, primarily due to an increase in interest expense on an investment in 2019 as a result of the PG&E bankruptcy, offset by earnings received in 2020 from an investment, due to a favorable property tax assessment.

Impairment losses on investments

Impairment losses on investments of $18 million were recorded for the three months ended March 31, 2020, related to Petra Nova Parish Holdings, as further discussed in Note 8, Impairments.

Interest Expense

Interest expense decreased by $16 million for the three months ended March 31, 2020, compared to the same period in 2019, due to the following:

	(In millions)
Decrease in derivative interest expense due to the termination of interest rate swaps in 2019	$	(9)
Decrease related to debt reduction of $600 million and refinancing $1.8 billion of debt at lower interest rates	(5)
Other	(2)
Decrease in interest expense	$	(16)

Income Tax Expense

For the three months ended March 31, 2020, income tax expense of $23 million was recorded on pre-tax income of $144 million. For the same period in 2019, income tax expense of $4 million was recorded on pre-tax income of $98 million. The effective tax rate was 16.0% and 4.1% for the three months ended March 31, 2020 and 2019, respectively.

For the three months ended March 31, 2020, the effective tax rate was lower than the statutory rate of 21%, primarily due to an excess tax benefit related to share-based compensation, partially offset by state tax expense. For the three months ended March 31, 2019, the effective tax rates was lower than the statutory rate of 21%, primarily due to the tax benefit for the change in valuation allowance, partially offset by state tax expense.

Income from Discontinued Operations, Net of Income Tax

(In millions)	Three months ended March 31, 2019
South Central Portfolio	$	35
Yield Renewables Platform & Carlsbad	353
Income from discontinued operations, net of tax	$	388

For the three months ended March 31, 2019, NRG recorded income from discontinued operations, net of income tax of $388 million, as further described in Note 4, Discontinued Operations and Dispositions.

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Liquidity and Capital Resources

Liquidity Position

As of March 31, 2020 and December 31, 2019, NRG's total liquidity, excluding funds deposited by counterparties, of approximately $2.0 billion and $2.1 billion, respectively, was comprised of the following:

(In millions)	March 31, 2020		December 31, 2019
Cash and cash equivalents	$	759	$	345
Restricted cash - operating	5		4
Restricted cash - reserves(a)	3		4
Total	767		353
Total credit facility availability	1,183		1,794
Total liquidity, excluding funds deposited by counterparties	$	1,950	$	2,147

^(a) Includes reserves primarily for debt service, performance obligations, and capital expenditures

For the three months ended March 31, 2020, total liquidity, excluding funds deposited by counterparties, decreased by $197 million. Changes in cash and cash equivalent balances are further discussed hereinafter under the heading Cash Flow Discussion. Cash and cash equivalents at March 31, 2020 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.

Liquidity

The principal sources of liquidity for NRG's future operating and maintenance capital expenditures are expected to be derived from cash on hand, cash flows from operations, and financing arrangements, as described in Note 9, Long-term Debt, to this Form 10-Q. The Company's financing arrangements consist mainly of the Senior Notes, the Senior Secured Notes, the Senior 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; (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.

Revolving Credit Facility

The Company had $635 million and $83 million outstanding under its Revolving Credit Facility as of March 31, 2020 and December 31, 2019, respectively. Due to market conditions, primarily as a result of COVID-19, the Company drew upon the facility in the first quarter of 2020 as a precaution and to proportionally increase cash on hand. As of May 7, 2020, $250 million of borrowings were outstanding.

COVID-19

On March 27, 2020, the U.S. government enacted the CARES Act, which provides, among other things, the option to defer payments of certain 2019 employer payroll taxes incurred after the date of enactment and pension contributions due in 2020, as well as claim a refund now for AMT credits from the IRS that were previously refundable over several years. As a result, the Company (i) expects to defer the payment of approximately $17 million for the employer share of social security taxes that would otherwise have been due in 2020, with 50% due by December 31, 2021 and the remaining 50% due by December 31, 2022, (ii) will consider deferring until January 1, 2021 approximately $47 million of cash contributions to the Company’s pension plans previously planned to be made in 2020 and (iii) reclassified $17 million of refundable AMT credits from non-current to current as of March 31, 2020.

Tax-Exempt Bonds

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 "Bonds"). The Bonds are guaranteed on a first-priority basis by each of NRG’s current and future subsidiaries that guarantee indebtedness under its credit agreement. The Bonds 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 Bonds will, at the

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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 Bonds or any of NRG’s senior unsecured debt securities or downgrade such rating below investment grade. The Bonds are subject to mandatory tender and purchase on April 3, 2023 and have a final maturity date of April 1, 2042.

NRG used the net proceeds from the offering to redeem the existing principal amount of outstanding Dunkirk Power LLC 5.875% tax exempt bonds due 2042, which will result in annualized interest savings of $3 million for the Company.

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 (i.e., buying fuel before receiving energy revenues); and (iv) initial collateral for large structured transactions. As of March 31, 2020, the Company had total cash collateral outstanding of $200 million and $767 million outstanding in letters of credit to third parties primarily to support its market activities. As of March 31, 2020, total funds deposited by counterparties were $51 million in cash and $120 million of letters of credit.

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 depend 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, excluding 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. To the extent that the underlying hedge positions for a counterparty are out-of-the-money to NRG, the counterparty would have a 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 March 31, 2020, all hedges under the first liens were in-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 March 31, 2020:

Equivalent Net Sales Secured by First Lien Structure(a)	2020	2021	2022	2023
In MW	546	646	672	724
As a percentage of total net coal and nuclear capacity(b)	12%	14%	15%	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 with Midwest Generation and NRG's assets that have project level financing

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Capital Expenditures

The following tables and descriptions summarize the Company's capital expenditures for maintenance, environmental and growth investments for the three months ended March 31, 2020, and the estimated capital expenditures forecast for the remainder of 2020.

(In millions)	Maintenance		Environmental		Growth Investments(a)		Total
Texas	$	37	$	—	$	5	$	42
East	5		—		4		9
West/Other	6		—		—		6
Corporate	—		—		9		9
Total cash capital expenditures for the three months ended March 31, 2020	48		—		18		66
Other investments(b)	—		—		2		2
Total capital expenditures and investments, net of financings	48		—		20		68
Estimated capital expenditures for the remainder of 2020(c)(d)	$	122	$	5	$	41	$	168

(a) Includes other investments, acquisitions and costs to achieve

(b) Includes $2 million of expenditures for Encina site improvements classified as ssset retirement obligation payments

(c) Growth investments include costs to achieve associated with the Transformation Plan

(d) Growth investments include $23 million of capital expenditures for Encina site improvements

Environmental Capital Expenditures

NRG estimates that environmental capital expenditures from 2020 through 2024 required to comply with environmental laws will be approximately $40 million.

Share Repurchases

The Company adopted in the fourth quarter of 2019 a long-term capital allocation policy 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.

During the three months ended March 31, 2020, the Company completed $177 million of share repurchases at an average price of $34.20 per share, including $27 million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuance. Through May 7, 2020, the Company completed an additional $47 million of share repurchases at an average price of $29.33 per share.

Common Stock Dividends

Beginning in the first quarter of 2020, NRG increased the annual dividend to $1.20 from $0.12 per share and expects to target an annual dividend growth rate of 7-9% per share in subsequent years. A quarterly dividend of $0.30 per share was paid on the Company's common stock during the three months ended March 31, 2020. On April 15, 2020, NRG declared a quarterly dividend on the Company's common stock of $0.30 per share, payable May 15, 2020 to stockholders of record as of May 1, 2020.

Cash Flow Discussion

The following table reflects the changes in cash flows for the comparative three month periods:

	Three months ended March 31,
(In millions)	2020		2019		Change
Net Cash Provided/(Used) by Operating Activities	$	208	$	(91)	$	299
Net Cash (Used)/Provided by Investing Activities	(68)		1,196		(1,264)
Net Cash Provided/(Used) by Financing Activities	293		(784)		1,077

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Net Cash Provided/(Used) by Operating Activities

Changes to net cash provided/(used) by operating activities were driven by:

	(In millions)
Changes in cash collateral in support of risk management activities due to change in commodity prices	$	132
Change in accounts payable primarily due to fluctuations in natural gas prices and timing of fuel shipments	124
Increase in operating income adjusted for other non-cash items	40
Increase in other working capital	11
Decrease in cash provided by discontinued operations	(8)
	$	299

Net Cash (Used)/Provided by Investing Activities

Changes to net cash (used)/provided by investing activities were driven by:

	(In millions)
Decrease in proceeds from sale of assets and discontinued operations primarily due to sale of South Central and Carlsbad in 2019	$	(1,298)
Decrease in contributions to discontinued operations	44
Increase in capital expenditures	(17)
Decrease in cash paid for acquisitions due to deferred acquisition payment made in 2019	16
Decrease in distributions from investments in unconsolidated affiliates	(4)
Other	(5)
	$	(1,264)

Net Cash Provided/(Used) by Financing Activities

Changes to net cash provided/(used) by financing activities were driven by:

	(In millions)
Increase in net proceeds from Revolving Credit Facility	$	552
Decrease in payments for share repurchase activity	604
Increase in payments of dividends to common stockholders	(66)
Proceeds from issuance of long-term debt in 2020	59
Decrease in cash provided by discontinued operations	(43)
Increase in repayments of long-term debt	(23)
Other	(6)
	$	1,077

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NOLs, Deferred Tax Assets and Uncertain Tax Position Implications, under ASC 740

For the three months ended March 31, 2020, the Company had domestic pre-tax book income of $144 million and foreign pre-tax book income of $400 thousand. As of December 31, 2019, the Company had cumulative domestic Federal NOL carryforwards of $10.1 billion, which will begin expiring in 2031, and cumulative state NOL carryforwards of $5.5 billion for financial statement purposes. NRG also has cumulative foreign NOL carryforwards of $357 million, which do not have an expiration date. In addition to the above NOLs, NRG has $384 million of tax credits to be utilized in future years. As a result of the Company's tax position, and based on current forecasts, NRG anticipates income tax payments, primarily to state and local jurisdictions, of up to $16 million in 2020.

The Company has recorded a non-current tax liability of $16 million, inclusive of accrued interest, for uncertain tax benefits taken on various state income tax positions until final resolution is reached with the related taxing authority.

The Company is no longer subject to U.S. federal income tax examinations for years prior to 2016. With few exceptions, state and local income tax examinations are no longer open for years prior to 2011.

Net deferred tax balance — As of both March 31, 2020 and December 31, 2019, NRG recorded a net deferred tax asset, excluding valuation allowance, of $3.5 billion. The Company believes certain state net operating losses may not be realizable under the more-likely-than-not measurement and as such, a valuation allowance was recorded as of March 31, 2020 as discussed below.

Valuation allowance — As of March 31, 2020 and December 31, 2019, the Company's tax-effected valuation allowance was $240 million and $242 million, respectively, consisting of state NOL carryforwards and foreign NOL carryforwards. The valuation allowance was recorded based on the assessment of cumulative and forecasted pre-tax book earnings and the future reversal of existing taxable temporary differences.

Off-Balance Sheet Arrangements

Obligations under Certain Guarantee Contracts

NRG and certain of its subsidiaries enter into guarantee arrangements in the normal course of business to facilitate market transactions with third parties. These arrangements include financial and performance guarantees, stand-by letters of credit, debt guarantees, surety bonds and indemnifications.

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 March 31, 2020, NRG has investments in energy and energy-related entities that are accounted for under the equity method of accounting. NRG’s investment in Ivanpah is a variable interest entity for which NRG is not the primary beneficiary. See also Note 10, Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs, to this Form 10-Q.

NRG's pro-rata share of non-recourse debt held by unconsolidated affiliates was approximately $865 million as of March 31, 2020. This indebtedness may restrict the ability of these subsidiaries to issue dividends or distributions to NRG. See also Note 15, Investments Accounted for by the Equity Method and Variable Interest Entities, to the Company's 2019 Form 10-K.

Contractual Obligations and Market Commitments

NRG has a variety of contractual obligations and other market commitments that represent prospective cash requirements in addition to the Company's capital expenditure programs, as disclosed in the Company's 2019 Form 10-K. See also Note 9, Long-term Debt, and Note 16, Commitments and Contingencies, to this Form 10-Q for a discussion of new commitments and contingencies that also include contractual obligations and market commitments that occurred during the three months ended March 31, 2020.

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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 power plants or retail load obligations. Historically, in order to mitigate interest rate risk associated with the issuance of the Company's variable rate and fixed rate debt, NRG entered into interest rate swap agreements. As of March 31, 2020, NRG had no interest rate derivative instruments. The following disclosures about fair value of derivative instruments provide an update to, and should be read in conjunction with, Fair Value of Derivative Instruments in Item 7 — Management's Discussion and Analysis of Financial Condition and Results of Operations, of the Company's 2019 Form 10-K.

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 March 31, 2020, based on their level within the fair value hierarchy defined in ASC 820; and indicate the maturities of contracts at March 31, 2020.

Derivative Activity Gains	(In millions)
Fair Value of Contracts as of December 31, 2019	$	67
Contracts realized or otherwise settled during the period	2
Changes in fair value	47
Fair Value of Contracts as of March 31, 2020	$	116

	Fair Value of Contracts as of March 31, 2020
(In millions)	Maturity
Fair value hierarchy (Losses)/Gains	1 Year or Less		Greater than 1 Year to 3 Years		Greater than 3 Years to 5 Years		Greater than 5 Years		Total Fair Value
Level 1	$	(60)	$	(21)	$	(2)	$	1	$	(82)
Level 2	73		62		—		(10)		125
Level 3	39		21		5		8		73
Total	$	52	$	62	$	3	$	(1)	$	116

The Company has elected to present 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 paid 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 3, Quantitative and Qualitative Disclosures About Market Risk, Commodity Price Risk, to this Form 10-Q, 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 asset and liability position is a better indicator of NRG's hedging activity. As of March 31, 2020, NRG's net derivative asset was $116 million, an increase to total fair value of $49 million as compared to December 31, 2019. This increase was primarily driven by gains in fair value, as well as roll-off of trades that settled during the period.

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 an increase of approximately $132 million in the net value of derivatives as of March 31, 2020. The impact of a $0.50 per MMBtu decrease in natural gas prices across the term of derivative contracts would result in a decrease of approximately $131 million in the net value of derivatives as of March 31, 2020.

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Critical Accounting Policies and Estimates

NRG's discussion and analysis of the financial condition and results of operations are based upon the Condensed 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 policies 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 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 has not changed.

On an ongoing basis, NRG evaluates these estimates, 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.

The Company identifies its critical accounting policies as those that are the most pervasive and important to the portrayal of the Company's financial position and results of operations, and require the most difficult, subjective and/or complex judgments by management regarding estimates about matters that are inherently uncertain. NRG's critical accounting policies include derivative instruments, income taxes and valuation allowance for deferred tax assets, impairment of long-lived assets and investments, goodwill and other intangible assets, and contingencies.

The Company's significant accounting policies are outlined in Note 2, Summary of Significant Accounting Policies, of this Form 10-Q, and in Note 2, Summary of Significant Accounting Policies, under Part IV, Item 15 of the Company's 2019 Form 10-K. The Company's critical accounting estimates are described in Part II, Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations, in the Company's 2019 Form 10-K. There have been no material changes to the Company's critical accounting policies and estimates since the 2019 Form 10-K, except as noted below.

As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments to Texas, East and West/Other beginning in the first quarter of 2020, as further described in Note 1, Nature of Business. As a result, the Company identified its reporting units as Texas (included in the Texas segment), East Retail (included in the East segment) and Midwest Generation (included in the East segment). The Company performed a quantitative assessment, using primarily an income approach, for each of the Company's new reporting units as of January 1, 2020. Under the income approach, the Company estimated the fair value of each reporting unit's cash flow exceeded its carrying value and, as such, the Company concluded that goodwill associated with each of the reporting units was not impaired as of January 1, 2020 as a result of the change in reporting units.

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ITEM 3 — 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 merchant power generation or with an existing or forecasted financial or commodity transaction. The types of market risks the Company is exposed to are commodity price risk, liquidity risk, credit risk, interest rate risk and currency exchange risk. The following disclosures about market risk provide an update to, and should be read in conjunction with, Item 7A — Quantitative and Qualitative Disclosures About Market Risk, of the Company's 2019 Form 10-K.

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 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. 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 its energy assets and liabilities, which includes generation assets, load obligations and bilateral physical and financial transactions.

The following table summarizes average, maximum and minimum VaR for NRG's commodity portfolio, including generation assets, load obligations and bilateral physical and financial transactions, calculated using the VaR model for the three months ending March 31, 2020 and 2019:

(In millions)	2020		2019
VaR as of March 31,	$	29	$	45
Three months ended March 31,
Average	$	27	$	45
Maximum	47		49
Minimum	22		42

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 $19 million, as of March 31, 2020, primarily driven by asset-backed transactions.

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 as of March 31, 2020, 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 $266 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 $142 million. This analysis uses simplified assumptions and is calculated based on portfolio composition and margin-related contract provisions as of March 31, 2020.

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. NRG is exposed to counterparty credit risk through various activities including wholesale sales, fuel purchases and retail supply arrangements, and retail customer credit risk through its retail load activities. See Note 5, Fair Value of Financial Instruments, to this Form 10-Q for discussions regarding counterparty credit risk and retail customer credit risk, and Note 7, Accounting for Derivative Instruments and Hedging Activities, to this Form 10-Q for discussion regarding credit risk contingent features.

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Interest Rate Risk

NRG was previously exposed to fluctuations in interest rates through its issuance of 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.

The Company previously entered into interest rate swaps. As of March 31, 2020, NRG had no interest rate derivative instruments.

As of March 31, 2020, the fair value and related carrying value of the Company's debt was $6.6 billion and $6.5 billion respectively. NRG estimates that a 1% decrease in market interest rates would have increased the fair value of the Company's long-term debt as of March 31, 2020 by $489 million.

Currency Exchange Risk

NRG's foreign earnings and investments may be subject to foreign currency exchange risk, which NRG generally does not hedge. As these earnings and investments are not material to NRG's consolidated results, the Company's foreign currency exposure is limited.

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ITEM 4 — CONTROLS AND PROCEDURES

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures

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 Quarterly Report on Form 10-Q.

Changes in Internal Control over Financial Reporting

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 quarter ended March 31, 2020 that materially affected, or are reasonably likely to materially affect, NRG's internal control over financial reporting.

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PART II — OTHER INFORMATION

ITEM 1 — LEGAL PROCEEDINGS

For a discussion of material legal proceedings in which NRG was involved through March 31, 2020, see Note 16, Commitments and Contingencies, to this Form 10-Q.

ITEM 1A — RISK FACTORS

Except as set forth below, during the three months ended March 31, 2020, there were no material changes to the Risk Factors disclosed in Part I, Item 1A, Risk Factors, of the Company's 2019 Form 10-K.

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 has 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. In addition, federal, state, and local governments have 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 have adversely impacted the ability of NRG employees, contractors, suppliers, customers, and other business partners to conduct 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 our 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 impacts the level of economic activity in the United States and globally. 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.

73

ITEM 2 — UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

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 March 31, 2020.

For the three months ended March 31, 2020	Total Number of Shares Purchased(a)(b)	Average Price Paid per Share(c)		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)(b)
Month #1
(January 1, 2020 to January 31, 2020	1,932,000	$	37.73	738,381	$	—
Month #2
(February 1, 2020 to February 29, 2020	649,145	$	36.67	—	$	—
Month #3
(March 1, 2020 to March 31, 2020)	1,880,293	$	28.21	—	$	—
Total at March 31, 2020	4,461,438	$	33.56	738,381

(a)The Company's board of directors authorized the Company to repurchase $1.25 billion of its common stock under a $1.0 billion program announced on February 28, 2019 and a $0.25 billion program announced on August 7, 2019. The Company completed these programs in January 2020

(b)The Company adopted in the fourth quarter of 2019 a long-term capital allocation policy 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 beginning in 2020, supplemented by share repurchases made in open-market repurchases

(c)The average price per share excludes commissions of $0.02 per share paid in connection with the open-market share repurchases

ITEM 3 — DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4 — MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5 — OTHER INFORMATION

None.

74

ITEM 6 — EXHIBITS

Number	Description	Method of Filing
31.1	Rule 13a-14(a)/15d-14(a) certification of Mauricio Gutierrez.	Filed herewith.
31.2	Rule 13a-14(a)/15d-14(a) certification of Kirkland B. Andrews.	Filed herewith.
31.3	Rule 13a-14(a)/15d-14(a) certification of David Callen.	Filed herewith.
32	Section 1350 Certification.	Furnished herewith.
101 INS	Inline XBRL Instance Document.	The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
101 SCH	Inline XBRL Taxonomy Extension Schema.	Filed herewith.
101 CAL	Inline XBRL Taxonomy Extension Calculation Linkbase.	Filed herewith.
101 DEF	Inline XBRL Taxonomy Extension Definition Linkbase.	Filed herewith.
101 LAB	Inline XBRL Taxonomy Extension Label Linkbase.	Filed herewith.
101 PRE	Inline XBRL Taxonomy Extension Presentation Linkbase.	Filed herewith.
104	Cover 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.

75

SIGNATURES

Pursuant to the requirements 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)
	/s/ MAURICIO GUTIERREZ
	Mauricio Gutierrez
	Chief Executive Officer (Principal Executive Officer)
	/s/ KIRKLAND B. ANDREWS
	Kirkland B. Andrews
	Chief Financial Officer (Principal Financial Officer)
	/s/ DAVID CALLEN
	David Callen
Date: May 7, 2020	Chief Accounting Officer (Principal Accounting Officer)

76

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Mauricio Gutierrez, certify that:

1.I have reviewed this quarterly report on Form 10-Q of NRG Energy, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, 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;

(c)Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ MAURICIO GUTIERREZ

Mauricio Gutierrez

Chief Executive Officer

(Principal Executive Officer)

Date: May 7, 2020

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Kirkland B. Andrews, certify that:

1.I have reviewed this quarterly report on Form 10-Q of NRG Energy, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, 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;

(c)Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ KIRKLAND B. ANDREWS

Kirkland B. Andrews

Chief Financial Officer

(Principal Financial Officer)

Date: May 7, 2020

EX-31.3

EXHIBIT 31.3

CERTIFICATION

I, David Callen, certify that:

1.I have reviewed this quarterly report on Form 10-Q of NRG Energy, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, 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;

(c)Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ DAVID CALLEN

David Callen

Chief Accounting Officer

(Principal Accounting Officer)

Date: May 7, 2020

EX-32

EXHIBIT 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of NRG Energy, Inc. on Form 10-Q for the quarter ended March 31, 2020, as filed with the Securities and Exchange Commission on the date hereof (the “Form 10-Q”), each of the undersigned officers of the Company certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer's knowledge:

(1)The Form 10-Q fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Form 10-Q.

Date: May 7, 2020

/s/ MAURICIO GUTIERREZ 

Mauricio Gutierrez

Chief Executive Officer

(Principal Executive Officer)

/s/ KIRKLAND B. ANDREWS

Kirkland B. Andrews

Chief Financial Officer

(Principal Financial Officer)

/s/ DAVID CALLEN

David Callen

Chief Accounting Officer

(Principal Accounting Officer) 

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of this Form 10-Q or as a separate disclosure document.

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to NRG Energy, Inc. and will be retained by NRG Energy, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Condensed Consolidating Financial Information

3 Months Ended

Mar. 31, 2020

Condensed Consolidating Financial Information Disclosure [Abstract]

Condensed Consolidating Financial Information

Condensed Consolidating Financial Information As of March 31, 2020, the Company had outstanding $4.4 billion of Senior Notes due from 2026 to 2048 and outstanding $1.1 billion of Senior Secured First Lien Notes due from 2024 to 2029, as shown in Note 9, Long-term Debt. These Senior Notes and Senior Secured First Lien 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 and the Senior Secured First Lien Notes as of March 31, 2020:

Ace Energy, Inc.	NRG Distributed Generation PR LLC	Reliant Energy Power Supply, LLC
Allied Home Warranty GP LLC	NRG Dunkirk Operations Inc.	Reliant Energy Retail Holdings, LLC
Allied Warranty LLC	NRG ECOKAP Holdings LLC	Reliant Energy Retail Services, LLC
Arthur Kill Power LLC	NRG El Segundo Operations Inc.	RERH Holdings, LLC
Astoria Gas Turbine Power LLC	NRG Energy Labor Services LLC	Saguaro Power LLC
BidURenergy, Inc.	NRG Energy Services Group LLC	SGE Energy Sourcing, LLC
Cabrillo Power I LLC	NRG Energy Services LLC	SGE Texas Holdco, LLC
Cabrillo Power II LLC	NRG Generation Holdings Inc.	Somerset Operations Inc.
Carbon Management Solutions LLC	NRG Greenco LLC	Somerset Power LLC
Cirro Energy Services, Inc.	NRG Home & Business Solutions LLC	Stream Energy Columbia, LLC
Cirro Group, Inc.	NRG Home Services LLC	Stream Energy Delaware, LLC
Connecticut Jet Power LLC	NRG Home Solutions LLC	Stream Energy Illinois, LLC
Devon Power LLC	NRG Home Solutions Product LLC	Stream Energy Maryland, LLC
Dunkirk Power LLC	NRG Homer City Services LLC	Stream Energy New Jersey, LLC
Eastern Sierra Energy Company LLC	NRG HQ DG LLC	Stream Energy New York, LLC
El Segundo Power II LLC	NRG Huntley Operations Inc.	Stream Energy Pennsylvania, LLC
El Segundo Power, LLC	NRG Identity Protect LLC	Stream Georgia Gas SPE, LLC
Energy Alternatives Wholesale, LLC	NRG Ilion Limited Partnership	Stream Ohio Gas & Electric, LLC
Energy Choice Solutions LLC	NRG Ilion LP LLC	Stream SPE GP, LLC
Energy Plus Holdings LLC	NRG International LLC	Stream SPE, Ltd.
Energy Plus Natural Gas LLC	NRG Maintenance Services LLC	Texas Genco GP, LLC
Energy Protection Insurance Company	NRG Mextrans Inc.	Texas Genco Holdings, Inc.
Everything Energy LLC	NRG MidAtlantic Affiliate Services Inc.	Texas Genco LP, LLC
Forward Home Security, LLC	NRG Middletown Operations Inc.	Texas Genco Services, LP
GCP Funding Company, LLC	NRG Montville Operations Inc.	US Retailers LLC
Green Mountain Energy Company	NRG North Central Operations Inc.	Vienna Operations Inc.
Gregory Partners, LLC	NRG Northeast Affiliate Services Inc.	Vienna Power LLC
Gregory Power Partners LLC	NRG Norwalk Harbor Operations Inc.	WCP (Generation) Holdings LLC
Huntley Power LLC	NRG Operating Services, Inc.	West Coast Power LLC
Independence Energy Alliance LLC	NRG Oswego Harbor Power Operations Inc.	XOOM Alberta Holdings, LLC
Independence Energy Group LLC	NRG PacGen Inc.	XOOM British Columbia Holdings, LLC
Independence Energy Natural Gas LLC	NRG Portable Power LLC	XOOM Energy California, LLC
Indian River Operations Inc.	NRG Power Marketing LLC	XOOM Energy Connecticut, LLC
Indian River Power LLC	NRG Reliability Solutions LLC	XOOM Energy Delaware, LLC
Meriden Gas Turbines LLC	NRG Renter's Protection LLC	XOOM Energy Georgia, LLC
Middletown Power LLC	NRG Retail LLC	XOOM Energy Global Holdings, LLC
Montville Power LLC	NRG Retail Northeast LLC	XOOM Energy Illinois LLC
NEO Corporation	NRG Rockford Acquisition LLC	XOOM Energy Indiana, LLC
New Genco GP, LLC	NRG Saguaro Operations Inc.	XOOM Energy Kentucky, LLC
Norwalk Power LLC	NRG Security LLC	XOOM Energy Maine, LLC
NRG Advisory Services LLC	NRG Services Corporation	XOOM Energy Maryland, LLC
NRG Affiliate Services Inc.	NRG SimplySmart Solutions LLC	XOOM Energy Massachusetts, LLC
NRG Arthur Kill Operations Inc.	NRG South Central Affiliate Services Inc.	XOOM Energy Michigan, LLC
NRG Astoria Gas Turbine Operations Inc.	NRG South Central Operations Inc.	XOOM Energy New Hampshire, LLC
NRG Business Services LLC	NRG South Texas LP	XOOM Energy New Jersey, LLC
NRG Cabrillo Power Operations Inc.	NRG Texas Gregory LLC	XOOM Energy New York, LLC
NRG California Peaker Operations LLC	NRG Texas Holding Inc.	XOOM Energy Ohio, LLC
NRG Cedar Bayou Development Company, LLC	NRG Texas LLC	XOOM Energy Pennsylvania, LLC
NRG Connected Home LLC	NRG Texas Power LLC	XOOM Energy Rhode Island, LLC
NRG Connecticut Affiliate Services Inc.	NRG Warranty Services LLC	XOOM Energy Texas, LLC
NRG Construction LLC	NRG West Coast LLC	XOOM Energy Virginia, LLC
NRG Curtailment Solutions, Inc.	NRG Western Affiliate Services Inc.	XOOM Energy Washington D.C., LLC
NRG Development Company Inc.	O'Brien Cogeneration, Inc. II	XOOM Energy, LLC
NRG Devon Operations Inc.	Oswego Harbor Power LLC	XOOM Ontario Holdings, LLC
NRG Dispatch Services LLC	Reliant Energy Northeast LLC	XOOM Solar, LLC
NRG Distributed Energy Resources Holdings LLC

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. There are no restrictions on the ability of any of the guarantor subsidiaries to transfer funds to NRG. However, 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 of Regulation S-X of the Securities Act. 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.

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Operating Revenues
Total operating revenues	$	1,778	$	252	$	—	$	(11)	$	2,019
Operating Costs and Expenses
Cost of operations	1,290		202		(24)		(11)		1,457
Depreciation and amortization	80		19		10		—		109
Selling, general and administrative	140		5		64		—		209
Reorganization costs	—		—		3		—		3
Development costs	—		—		3		—		3
Total operating costs and expenses	1,510		226		56		(11)		1,781
Gain on sale of assets	—		1		5		—		6
Operating Income/(Loss)	268		27		(51)		—		244
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	3		—		262		(265)		—
Equity in losses of unconsolidated affiliates	—		(11)		—		—		(11)
Impairment losses on investments	—		(18)		—		—		(18)
Other income/(loss), net	3		(1)		25		—		27
Interest expense	(5)		(1)		(92)		—		(98)
Total other income/(expense)	1		(31)		195		(265)		(100)
Income/(Loss) from Continuing Operations Before Income Taxes	269		(4)		144		(265)		144
Income tax expense	—		—		23		—		23
Net Income/(Loss)	$	269	$	(4)	$	121	$	(265)	$	121

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Net Income/(Loss)	$	269	$	(4)	$	121	$	(265)	$	121
Other Comprehensive Loss
Foreign currency translation adjustments, net	(15)		(15)		(15)		30		(15)
Defined benefit plans, net	2		—		—		(2)		—
Other comprehensive loss	(13)		(15)		(15)		28		(15)
Comprehensive Income/(Loss)	$	256	$	(19)	$	106	$	(237)	$	106

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING BALANCE SHEETS

March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
ASSETS
Current Assets
Cash and cash equivalents	$	—	$	19	$	740	$	—	$	759
Funds deposited by counterparties	51		—		—		—		51
Restricted cash	7		—		1		—		8
Accounts receivable, net	1,684		137		533		(1,439)		915
Inventory	287		85		—		—		372
Derivative instruments	882		35		—		(33)		884
Cash collateral paid in support of energy risk management activities	197		3		—		—		200
Prepayments and other current assets	222		8		60		—		290
Total current assets	3,330		287		1,334		(1,472)		3,479
Property, plant and equipment, net	1,372		1,046		155		—		2,573
Other Assets
Investment in subsidiaries	158		—		5,122		(5,280)		—
Equity investments in affiliates	—		350		—		—		350
Operating lease right-of-use assets, net	79		251		116		—		446
Goodwill	400		179		—		—		579
Intangible assets, net	729		40		—		—		769
Nuclear decommissioning trust fund	702		—		—		—		702
Derivative instruments	434		13		—		(13)		434
Deferred income taxes	435		(32)		2,862		—		3,265
Other non-current assets	163		27		35		—		225
Total other assets	3,100		828		8,135		(5,293)		6,770
Total Assets	$	7,802	$	2,161	$	9,624	$	(6,765)	$	12,822
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Current portion of long-term debt	$	1	$	4	$	635	$	—	$	640
Current portion of operating lease liabilities	20		31		20		—		71
Accounts payable	1,016		125		1,006		(1,439)		708
Derivative instruments	852		13		—		(33)		832
Cash collateral received in support of energy risk management activities	51		—		—		—		51
Accrued expenses and other current liabilities	259		31		260		—		550
Total current liabilities	2,199		204		1,921		(1,472)		2,852
Other Liabilities
Long-term debt	248		24		5,535		—		5,807
Non-current operating lease liabilities	64		295		114		—		473
Nuclear decommissioning reserve	303		—		—		—		303
Nuclear decommissioning trust liability	390		—		—		—		390
Derivative instruments	382		1		—		(13)		370
Deferred income taxes	—		15		—		—		15
Other non-current liabilities	438		120		518		—		1,076
Total other liabilities	1,825		455		6,167		(13)		8,434
Total Liabilities	4,024		659		8,088		(1,485)		11,286
Stockholders’ Equity	3,778		1,502		1,536		(5,280)		1,536
Total Liabilities and Stockholders’ Equity	$	7,802	$	2,161	$	9,624	$	(6,765)	$	12,822

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Cash Flows from Operating Activities
Net income/(loss)	$	269	$	(4)	$	121	$	(265)	$	121
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in earnings/(losses) of unconsolidated affiliates and consolidated subsidiaries	(3)		16		(262)		265		16
Depreciation and amortization	80		20		9		—		109
Accretion of asset retirement obligations	4		7		—		—		11
Provision for credit losses	24		—		—		—		24
Amortization of nuclear fuel	13		—		—		—		13
Amortization of financing costs and debt discount/premiums	—		—		6		—		6
Loss on debt extinguishment, net	—		—		1		—		1
Amortization of emission allowances and energy credits	2		5		—		—		7
Amortization of unearned equity compensation	—		—		5		—		5
Net gain on sale of assets and disposal of assets	(8)		(1)		(5)		—		(14)
Impairment losses	—		18		—		—		18
Changes in derivative instruments	(46)		—		—		—		(46)
Changes in deferred income taxes and liability for uncertain tax benefits	(14)		11		22		—		19
Changes in collateral deposits in support of energy risk management activities	4		5		—		—		9
Changes in nuclear decommissioning trust liability	8		—		—		—		8
Changes in other working capital	(130)		(14)		45		—		(99)
Net Cash Provided/(Used) by Operating Activities	203		63		(58)		—		208
Cash Flows from Investing Activities
Intercompany dividends	—		—		757		(757)		—
Capital expenditures	(50)		(6)		(10)		—		(66)
Net purchases of emission allowances	(8)		—		—		—		(8)
Investments in nuclear decommissioning trust fund securities	(121)		—		—		—		(121)
Proceeds from the sale of nuclear decommissioning trust fund securities	112		—		—		—		112
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	10		—		5				15
Net Cash (Used)/Provided by Investing Activities	(57)		(6)		752		(757)		(68)
Cash Flows from Financing Activities
Intercompany dividends and transfers	(63)		(56)		(638)		757		—
Payments of dividends to common stockholders	—		—		(74)		—		(74)
Payments for share repurchase activity	—		—		(179)		—		(179)
Purchase of and distributions to noncontrolling interests from subsidiaries	—		(2)		—		—		(2)
Proceeds from issuance of long-term debt	—		—		59		—		59
Repayments of long-term debt	(59)		(1)		—		—		(60)
Net proceeds from Revolving Credit Facility	—		—		552		—		552
Other	(3)		—		—		—		(3)
Net Cash (Used)/Provided by Financing Activities	(125)		(59)		(280)		757		293
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	21		(2)		414		—		433
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	37		21		327		—		385
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$	58	$	19	$	741	$	—	$	818

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Operating Revenues
Total operating revenues	$	1,769	$	395	$	—	$	1	$	2,165
Operating Costs and Expenses
Cost of operations	1,358		283		9		1		1,651
Depreciation and amortization	54		23		8		—		85
Selling, general and administrative	122		16		56		—		194
Reorganization costs	—		—		13		—		13
Development costs	—		—		2		—		2
Total operating costs and expenses	1,534		322		88		1		1,945
Gain on sale of assets	1		—		—		—		1
Operating Income/(Loss)	236		73		(88)		—		221
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	10		—		299		(309)		—
Equity in losses of unconsolidated affiliates	—		(21)		—		—		(21)
Other income, net	4		1		7		—		12
Interest expense	(4)		(4)		(106)		—		(114)
Total other income/(expense)	10		(24)		200		(309)		(123)
Income from Continuing Operations Before Income Taxes	246		49		112		(309)		98
Income tax expense	—		—		4		—		4
Income from Continuing Operations	246		49		108		(309)		94
Income from discontinued operations, net of income tax	9		5		374		—		388
Net Income	$	255	$	54	$	482	$	(309)	$	482

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Net Income	$	255	$	54	$	482	$	(309)	$	482
Other Comprehensive Income/(Loss)
Foreign currency translation adjustments, net	1		1		1		(2)		1
Defined benefit plans, net	—		—		(3)		—		(3)
Other comprehensive income/(loss)	1		1		(2)		(2)		(2)
Comprehensive Income	$	256	$	55	$	480	$	(311)	$	480

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING BALANCE SHEETS

December 31, 2019

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
ASSETS
Current Assets
Cash and cash equivalents	$	—	$	20	$	325	$	—	$	345
Funds deposited by counterparties	32		—		—		—		32
Restricted cash	5		1		2		—		8
Accounts receivable, net	1,293		239		233		(740)		1,025
Inventory	272		111		—		—		383
Derivative instruments	856		45		—		(41)		860
Cash collateral paid in support of energy risk management activities	182		8		—		—		190
Prepayments and other current assets	170		8		67		—		245
Total current assets	2,810		432		627		(781)		3,088
Property, plant and equipment, net	1,483		952		158		—		2,593
Other Assets
Investment in subsidiaries	710		—		4,785		(5,495)		—
Equity investments in affiliates	—		388		—		—		388
Operating lease right-of-use assets, net	81		261		122		—		464
Goodwill	359		220		—		—		579
Intangible assets, net	375		414		—		—		789
Nuclear decommissioning trust fund	794		—		—		—		794
Derivative instruments	308		15		—		(13)		310
Deferred income taxes	421		(19)		2,884		—		3,286
Other non-current assets	145		30		65		—		240
Total other assets	3,193		1,309		7,856		(5,508)		6,850
Total Assets	$	7,486	$	2,693	$	8,641	$	(6,289)	$	12,531
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Current portion of long-term debt	$	—	$	5	$	83	$	—	$	88
Current portion of operating lease liabilities	20		32		21		—		73
Accounts payable	918		141		403		(740)		722
Derivative instruments	797		25		—		(41)		781
Cash collateral received in support of energy risk management activities	32		—		—		—		32
Accrued expenses and other current liabilities	280		44		339		—		663
Total current liabilities	2,047		247		846		(781)		2,359
Other Liabilities
Long-term debt	302		28		5,473		—		5,803
Non-current operating lease liabilities	64		301		118		—		483
Nuclear decommissioning reserve	298		—		—		—		298
Nuclear decommissioning trust liability	487		—		—		—		487
Derivative instruments	334		1		—		(13)		322
Deferred income taxes	—		17		—		—		17
Other non-current liabilities	399		153		532		—		1,084
Total other liabilities	1,884		500		6,123		(13)		8,494
Total Liabilities	3,931		747		6,969		(794)		10,853
Redeemable noncontrolling interest in subsidiaries	—		20		—		—		20
Stockholders’ Equity	3,555		1,926		1,672		(5,495)		1,658
Total Liabilities and Stockholders’ Equity	$	7,486	$	2,693	$	8,641	$	(6,289)	$	12,531

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Cash Flows from Operating Activities
Net income	$	255	$	54	$	482	$	(309)	$	482
Income from discontinued operations	9		5		374		—		388
Income from continuing operations	246		49		108		(309)		94
Adjustments to reconcile net income to cash provided by operating activities:
Distributions from and equity in earnings/(losses) of unconsolidated affiliates and consolidated subsidiaries	(10)		21		(299)		309		21
Depreciation and amortization	54		23		8		—		85
Accretion of asset retirement obligations	5		2		—		—		7
Provision for credit losses	23		3		—		—		26
Amortization of nuclear fuel	13		—		—		—		13
Amortization of financing costs and debt discount/premiums	—		—		7		—		7
Amortization of emission allowances and energy credits	6		—		—		—		6
Amortization of unearned equity compensation	—		—		4		—		4
Net loss on sale of assets and disposal of assets	—		—		3		—		3
Changes in derivative instruments	(29)		5		9		—		(15)
Changes in deferred income taxes and liability for uncertain tax benefits	—		1		(3)		—		(2)
Changes in collateral deposits in support of energy risk management activities	(114)		(9)		—		—		(123)
Changes in nuclear decommissioning trust liability	9		—		—		—		9
Changes in other working capital	(211)		(137)		114		—		(234)
Cash used by continuing operations	(8)		(42)		(49)		—		(99)
Cash provided/(used) by discontinued operations	17		(9)		—		—		8
Net Cash Provided/(Used) by Operating Activities	9		(51)		(49)		—		(91)
Cash Flows from Investing Activities
Intercompany dividends	—		—		311		(311)		—
Payments for acquisitions of businesses	(16)		—		—		—		(16)
Capital expenditures	(36)		(6)		(7)		—		(49)
Investments in nuclear decommissioning trust fund securities	(122)		—		—		—		(122)
Proceeds from the sale of nuclear decommissioning trust fund securities	113		—		—		—		113
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	1		404		908		—		1,313
Net distributions from investments in unconsolidated affiliates	—		4		—		—		4
Contributions to discontinued operations	—		(44)		—		—		(44)
Other	—		—		(1)		—		(1)
Cash (used)/provided by continuing operations	(60)		358		1,211		(311)		1,198
Cash used by discontinued operations	—		(2)		—		—		(2)
Net Cash (Used)/Provided by Investing Activities	(60)		356		1,211		(311)		1,196
Cash Flows from Financing Activities
Intercompany dividends and transfers	(4)		(290)		(17)		311		—
Payment of dividends to common stockholders	—		—		(8)		—		(8)
Payments for share repurchase activity	—		—		(783)		—		(783)
Net distributions to noncontrolling interests from subsidiaries	—		(1)		—		—		(1)
Proceeds from issuance of common stock	—		—		2		—		2
Payments for long-term debt	—		(33)		(4)		—		(37)
Cash used by continuing operations	(4)		(324)		(810)		311		(827)
Cash provided by discontinued operations	—		43		—		—		43
Net Cash Used by Financing Activities	(4)		(281)		(810)		311		(784)
Change in cash from discontinued operations	17		32		—		—		49
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	(72)		(8)		352		—		272
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	95		38		480		—		613
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$	23	$	30	$	832	$	—	$	885

XML

Related Party Transactions

3 Months Ended

Mar. 31, 2020

Related Party Transactions [Abstract]

Related Party Transactions

Related Party Transactions

NRG provides services to some of its 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:

	Three months ended March 31,
(In millions)	2020		2019
Revenues from Related Parties Included in Operating Revenues
Gladstone	$	1	$	1
Ivanpah(a)	13		10
Midway-Sunset	1		1
Total	$	15	$	12

(a) Also includes fees under project management agreements with each project company

XML

Accounting for Derivative Instruments and Hedging Activities - Pre-tax effects of economic hedges not designated a cash flow hedges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Unrealized mark-to-market results
Reversal of previously recognized unrealized losses on settled positions related to economic hedges	$ 9	$ 19
Reversal of acquired loss/(gain) positions related to economic hedges	1	(2)
Net unrealized gains on open positions related to economic hedges	34	3
Total unrealized mark-to-market gains for economic hedging activities	44	20
Reversal of previously recognized unrealized (gains) on settled positions related to trading activity	(2)	(6)
Net unrealized gains on open positions related to trading activity	13	13
Total unrealized mark-to-market gains for trading activity	11	7
Total unrealized gains	55	27
Credit Risk Related Contingent Features
Unrealized gain (loss) from open economic hedge positions	34	3
Collateral due on net liability position that has not been called by a certain marginable agreement counterparty	1
Adequate Assurance Clauses
Credit Risk Related Contingent Features
Derivative net liability position, collateral required for contracts with credit rating contingent feature	12
Credit Rating Contingent Features
Credit Risk Related Contingent Features
Derivative net liability position, collateral required for contracts with credit rating contingent feature	25
Commodity contracts
Unrealized mark-to-market results
Total unrealized gains	55	27
Commodity contracts | Operating revenues
Unrealized mark-to-market results
Total unrealized gains	7	27
Commodity contracts | Cost of operations
Unrealized mark-to-market results
Total unrealized gains	48	0
Interest rate contracts
Unrealized mark-to-market results
Total unrealized gains	$ 0	$ (9)

XML

Nuclear Decommissioning Trust Fund - Summary of proceeds from sales of available-for-sale securities and related gains and losses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Regulated Operations [Abstract]
Realized gains	$ 2	$ 3
Realized losses	(5)	(2)
Proceeds from sale of securities	$ 112	$ 113

XML

Long-term Debt - Non Recourse Debt (Details) - Credit Agreement - Letter of Credit - USD ($)	Jan. 04, 2019	Mar. 31, 2020
Debt Instrument [Line Items]
Credit agreement	$ 80,000,000
Facility fees	1.33%
Letters of credit issued		$ 80,000,000

XML

Condensed Consolidating Financial Information (Tables)

3 Months Ended

Mar. 31, 2020

Condensed Consolidating Financial Information Disclosure [Abstract]

Schedule of Guarantor Subsidiaries

Unless otherwise noted below, each of the following guarantor subsidiaries fully and unconditionally guaranteed the Senior Notes and the Senior Secured First Lien Notes as of March 31, 2020:

Ace Energy, Inc.	NRG Distributed Generation PR LLC	Reliant Energy Power Supply, LLC
Allied Home Warranty GP LLC	NRG Dunkirk Operations Inc.	Reliant Energy Retail Holdings, LLC
Allied Warranty LLC	NRG ECOKAP Holdings LLC	Reliant Energy Retail Services, LLC
Arthur Kill Power LLC	NRG El Segundo Operations Inc.	RERH Holdings, LLC
Astoria Gas Turbine Power LLC	NRG Energy Labor Services LLC	Saguaro Power LLC
BidURenergy, Inc.	NRG Energy Services Group LLC	SGE Energy Sourcing, LLC
Cabrillo Power I LLC	NRG Energy Services LLC	SGE Texas Holdco, LLC
Cabrillo Power II LLC	NRG Generation Holdings Inc.	Somerset Operations Inc.
Carbon Management Solutions LLC	NRG Greenco LLC	Somerset Power LLC
Cirro Energy Services, Inc.	NRG Home & Business Solutions LLC	Stream Energy Columbia, LLC
Cirro Group, Inc.	NRG Home Services LLC	Stream Energy Delaware, LLC
Connecticut Jet Power LLC	NRG Home Solutions LLC	Stream Energy Illinois, LLC
Devon Power LLC	NRG Home Solutions Product LLC	Stream Energy Maryland, LLC
Dunkirk Power LLC	NRG Homer City Services LLC	Stream Energy New Jersey, LLC
Eastern Sierra Energy Company LLC	NRG HQ DG LLC	Stream Energy New York, LLC
El Segundo Power II LLC	NRG Huntley Operations Inc.	Stream Energy Pennsylvania, LLC
El Segundo Power, LLC	NRG Identity Protect LLC	Stream Georgia Gas SPE, LLC
Energy Alternatives Wholesale, LLC	NRG Ilion Limited Partnership	Stream Ohio Gas & Electric, LLC
Energy Choice Solutions LLC	NRG Ilion LP LLC	Stream SPE GP, LLC
Energy Plus Holdings LLC	NRG International LLC	Stream SPE, Ltd.
Energy Plus Natural Gas LLC	NRG Maintenance Services LLC	Texas Genco GP, LLC
Energy Protection Insurance Company	NRG Mextrans Inc.	Texas Genco Holdings, Inc.
Everything Energy LLC	NRG MidAtlantic Affiliate Services Inc.	Texas Genco LP, LLC
Forward Home Security, LLC	NRG Middletown Operations Inc.	Texas Genco Services, LP
GCP Funding Company, LLC	NRG Montville Operations Inc.	US Retailers LLC
Green Mountain Energy Company	NRG North Central Operations Inc.	Vienna Operations Inc.
Gregory Partners, LLC	NRG Northeast Affiliate Services Inc.	Vienna Power LLC
Gregory Power Partners LLC	NRG Norwalk Harbor Operations Inc.	WCP (Generation) Holdings LLC
Huntley Power LLC	NRG Operating Services, Inc.	West Coast Power LLC
Independence Energy Alliance LLC	NRG Oswego Harbor Power Operations Inc.	XOOM Alberta Holdings, LLC
Independence Energy Group LLC	NRG PacGen Inc.	XOOM British Columbia Holdings, LLC
Independence Energy Natural Gas LLC	NRG Portable Power LLC	XOOM Energy California, LLC
Indian River Operations Inc.	NRG Power Marketing LLC	XOOM Energy Connecticut, LLC
Indian River Power LLC	NRG Reliability Solutions LLC	XOOM Energy Delaware, LLC
Meriden Gas Turbines LLC	NRG Renter's Protection LLC	XOOM Energy Georgia, LLC
Middletown Power LLC	NRG Retail LLC	XOOM Energy Global Holdings, LLC
Montville Power LLC	NRG Retail Northeast LLC	XOOM Energy Illinois LLC
NEO Corporation	NRG Rockford Acquisition LLC	XOOM Energy Indiana, LLC
New Genco GP, LLC	NRG Saguaro Operations Inc.	XOOM Energy Kentucky, LLC
Norwalk Power LLC	NRG Security LLC	XOOM Energy Maine, LLC
NRG Advisory Services LLC	NRG Services Corporation	XOOM Energy Maryland, LLC
NRG Affiliate Services Inc.	NRG SimplySmart Solutions LLC	XOOM Energy Massachusetts, LLC
NRG Arthur Kill Operations Inc.	NRG South Central Affiliate Services Inc.	XOOM Energy Michigan, LLC
NRG Astoria Gas Turbine Operations Inc.	NRG South Central Operations Inc.	XOOM Energy New Hampshire, LLC
NRG Business Services LLC	NRG South Texas LP	XOOM Energy New Jersey, LLC
NRG Cabrillo Power Operations Inc.	NRG Texas Gregory LLC	XOOM Energy New York, LLC
NRG California Peaker Operations LLC	NRG Texas Holding Inc.	XOOM Energy Ohio, LLC
NRG Cedar Bayou Development Company, LLC	NRG Texas LLC	XOOM Energy Pennsylvania, LLC
NRG Connected Home LLC	NRG Texas Power LLC	XOOM Energy Rhode Island, LLC
NRG Connecticut Affiliate Services Inc.	NRG Warranty Services LLC	XOOM Energy Texas, LLC
NRG Construction LLC	NRG West Coast LLC	XOOM Energy Virginia, LLC
NRG Curtailment Solutions, Inc.	NRG Western Affiliate Services Inc.	XOOM Energy Washington D.C., LLC
NRG Development Company Inc.	O'Brien Cogeneration, Inc. II	XOOM Energy, LLC
NRG Devon Operations Inc.	Oswego Harbor Power LLC	XOOM Ontario Holdings, LLC
NRG Dispatch Services LLC	Reliant Energy Northeast LLC	XOOM Solar, LLC
NRG Distributed Energy Resources Holdings LLC

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Operating Revenues
Total operating revenues	$	1,778	$	252	$	—	$	(11)	$	2,019
Operating Costs and Expenses
Cost of operations	1,290		202		(24)		(11)		1,457
Depreciation and amortization	80		19		10		—		109
Selling, general and administrative	140		5		64		—		209
Reorganization costs	—		—		3		—		3
Development costs	—		—		3		—		3
Total operating costs and expenses	1,510		226		56		(11)		1,781
Gain on sale of assets	—		1		5		—		6
Operating Income/(Loss)	268		27		(51)		—		244
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	3		—		262		(265)		—
Equity in losses of unconsolidated affiliates	—		(11)		—		—		(11)
Impairment losses on investments	—		(18)		—		—		(18)
Other income/(loss), net	3		(1)		25		—		27
Interest expense	(5)		(1)		(92)		—		(98)
Total other income/(expense)	1		(31)		195		(265)		(100)
Income/(Loss) from Continuing Operations Before Income Taxes	269		(4)		144		(265)		144
Income tax expense	—		—		23		—		23
Net Income/(Loss)	$	269	$	(4)	$	121	$	(265)	$	121

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Operating Revenues
Total operating revenues	$	1,769	$	395	$	—	$	1	$	2,165
Operating Costs and Expenses
Cost of operations	1,358		283		9		1		1,651
Depreciation and amortization	54		23		8		—		85
Selling, general and administrative	122		16		56		—		194
Reorganization costs	—		—		13		—		13
Development costs	—		—		2		—		2
Total operating costs and expenses	1,534		322		88		1		1,945
Gain on sale of assets	1		—		—		—		1
Operating Income/(Loss)	236		73		(88)		—		221
Other Income/(Expense)
Equity in earnings of consolidated subsidiaries	10		—		299		(309)		—
Equity in losses of unconsolidated affiliates	—		(21)		—		—		(21)
Other income, net	4		1		7		—		12
Interest expense	(4)		(4)		(106)		—		(114)
Total other income/(expense)	10		(24)		200		(309)		(123)
Income from Continuing Operations Before Income Taxes	246		49		112		(309)		98
Income tax expense	—		—		4		—		4
Income from Continuing Operations	246		49		108		(309)		94
Income from discontinued operations, net of income tax	9		5		374		—		388
Net Income	$	255	$	54	$	482	$	(309)	$	482

(a)All significant intercompany transactions have been eliminated in consolidation

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME /(LOSS)

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Net Income/(Loss)	$	269	$	(4)	$	121	$	(265)	$	121
Other Comprehensive Loss
Foreign currency translation adjustments, net	(15)		(15)		(15)		30		(15)
Defined benefit plans, net	2		—		—		(2)		—
Other comprehensive loss	(13)		(15)		(15)		28		(15)
Comprehensive Income/(Loss)	$	256	$	(19)	$	106	$	(237)	$	106

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Net Income	$	255	$	54	$	482	$	(309)	$	482
Other Comprehensive Income/(Loss)
Foreign currency translation adjustments, net	1		1		1		(2)		1
Defined benefit plans, net	—		—		(3)		—		(3)
Other comprehensive income/(loss)	1		1		(2)		(2)		(2)
Comprehensive Income	$	256	$	55	$	480	$	(311)	$	480

(a)All significant intercompany transactions have been eliminated in consolidation

CONDENSED CONSOLIDATING BALANCE SHEETS

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING BALANCE SHEETS

March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
ASSETS
Current Assets
Cash and cash equivalents	$	—	$	19	$	740	$	—	$	759
Funds deposited by counterparties	51		—		—		—		51
Restricted cash	7		—		1		—		8
Accounts receivable, net	1,684		137		533		(1,439)		915
Inventory	287		85		—		—		372
Derivative instruments	882		35		—		(33)		884
Cash collateral paid in support of energy risk management activities	197		3		—		—		200
Prepayments and other current assets	222		8		60		—		290
Total current assets	3,330		287		1,334		(1,472)		3,479
Property, plant and equipment, net	1,372		1,046		155		—		2,573
Other Assets
Investment in subsidiaries	158		—		5,122		(5,280)		—
Equity investments in affiliates	—		350		—		—		350
Operating lease right-of-use assets, net	79		251		116		—		446
Goodwill	400		179		—		—		579
Intangible assets, net	729		40		—		—		769
Nuclear decommissioning trust fund	702		—		—		—		702
Derivative instruments	434		13		—		(13)		434
Deferred income taxes	435		(32)		2,862		—		3,265
Other non-current assets	163		27		35		—		225
Total other assets	3,100		828		8,135		(5,293)		6,770
Total Assets	$	7,802	$	2,161	$	9,624	$	(6,765)	$	12,822
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Current portion of long-term debt	$	1	$	4	$	635	$	—	$	640
Current portion of operating lease liabilities	20		31		20		—		71
Accounts payable	1,016		125		1,006		(1,439)		708
Derivative instruments	852		13		—		(33)		832
Cash collateral received in support of energy risk management activities	51		—		—		—		51
Accrued expenses and other current liabilities	259		31		260		—		550
Total current liabilities	2,199		204		1,921		(1,472)		2,852
Other Liabilities
Long-term debt	248		24		5,535		—		5,807
Non-current operating lease liabilities	64		295		114		—		473
Nuclear decommissioning reserve	303		—		—		—		303
Nuclear decommissioning trust liability	390		—		—		—		390
Derivative instruments	382		1		—		(13)		370
Deferred income taxes	—		15		—		—		15
Other non-current liabilities	438		120		518		—		1,076
Total other liabilities	1,825		455		6,167		(13)		8,434
Total Liabilities	4,024		659		8,088		(1,485)		11,286
Stockholders’ Equity	3,778		1,502		1,536		(5,280)		1,536
Total Liabilities and Stockholders’ Equity	$	7,802	$	2,161	$	9,624	$	(6,765)	$	12,822

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING BALANCE SHEETS

December 31, 2019

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
ASSETS
Current Assets
Cash and cash equivalents	$	—	$	20	$	325	$	—	$	345
Funds deposited by counterparties	32		—		—		—		32
Restricted cash	5		1		2		—		8
Accounts receivable, net	1,293		239		233		(740)		1,025
Inventory	272		111		—		—		383
Derivative instruments	856		45		—		(41)		860
Cash collateral paid in support of energy risk management activities	182		8		—		—		190
Prepayments and other current assets	170		8		67		—		245
Total current assets	2,810		432		627		(781)		3,088
Property, plant and equipment, net	1,483		952		158		—		2,593
Other Assets
Investment in subsidiaries	710		—		4,785		(5,495)		—
Equity investments in affiliates	—		388		—		—		388
Operating lease right-of-use assets, net	81		261		122		—		464
Goodwill	359		220		—		—		579
Intangible assets, net	375		414		—		—		789
Nuclear decommissioning trust fund	794		—		—		—		794
Derivative instruments	308		15		—		(13)		310
Deferred income taxes	421		(19)		2,884		—		3,286
Other non-current assets	145		30		65		—		240
Total other assets	3,193		1,309		7,856		(5,508)		6,850
Total Assets	$	7,486	$	2,693	$	8,641	$	(6,289)	$	12,531
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Current portion of long-term debt	$	—	$	5	$	83	$	—	$	88
Current portion of operating lease liabilities	20		32		21		—		73
Accounts payable	918		141		403		(740)		722
Derivative instruments	797		25		—		(41)		781
Cash collateral received in support of energy risk management activities	32		—		—		—		32
Accrued expenses and other current liabilities	280		44		339		—		663
Total current liabilities	2,047		247		846		(781)		2,359
Other Liabilities
Long-term debt	302		28		5,473		—		5,803
Non-current operating lease liabilities	64		301		118		—		483
Nuclear decommissioning reserve	298		—		—		—		298
Nuclear decommissioning trust liability	487		—		—		—		487
Derivative instruments	334		1		—		(13)		322
Deferred income taxes	—		17		—		—		17
Other non-current liabilities	399		153		532		—		1,084
Total other liabilities	1,884		500		6,123		(13)		8,494
Total Liabilities	3,931		747		6,969		(794)		10,853
Redeemable noncontrolling interest in subsidiaries	—		20		—		—		20
Stockholders’ Equity	3,555		1,926		1,672		(5,495)		1,658
Total Liabilities and Stockholders’ Equity	$	7,486	$	2,693	$	8,641	$	(6,289)	$	12,531

(a)All significant intercompany transactions have been eliminated in consolidation

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

For the three months ended March 31, 2020

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Cash Flows from Operating Activities
Net income/(loss)	$	269	$	(4)	$	121	$	(265)	$	121
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in earnings/(losses) of unconsolidated affiliates and consolidated subsidiaries	(3)		16		(262)		265		16
Depreciation and amortization	80		20		9		—		109
Accretion of asset retirement obligations	4		7		—		—		11
Provision for credit losses	24		—		—		—		24
Amortization of nuclear fuel	13		—		—		—		13
Amortization of financing costs and debt discount/premiums	—		—		6		—		6
Loss on debt extinguishment, net	—		—		1		—		1
Amortization of emission allowances and energy credits	2		5		—		—		7
Amortization of unearned equity compensation	—		—		5		—		5
Net gain on sale of assets and disposal of assets	(8)		(1)		(5)		—		(14)
Impairment losses	—		18		—		—		18
Changes in derivative instruments	(46)		—		—		—		(46)
Changes in deferred income taxes and liability for uncertain tax benefits	(14)		11		22		—		19
Changes in collateral deposits in support of energy risk management activities	4		5		—		—		9
Changes in nuclear decommissioning trust liability	8		—		—		—		8
Changes in other working capital	(130)		(14)		45		—		(99)
Net Cash Provided/(Used) by Operating Activities	203		63		(58)		—		208
Cash Flows from Investing Activities
Intercompany dividends	—		—		757		(757)		—
Capital expenditures	(50)		(6)		(10)		—		(66)
Net purchases of emission allowances	(8)		—		—		—		(8)
Investments in nuclear decommissioning trust fund securities	(121)		—		—		—		(121)
Proceeds from the sale of nuclear decommissioning trust fund securities	112		—		—		—		112
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	10		—		5				15
Net Cash (Used)/Provided by Investing Activities	(57)		(6)		752		(757)		(68)
Cash Flows from Financing Activities
Intercompany dividends and transfers	(63)		(56)		(638)		757		—
Payments of dividends to common stockholders	—		—		(74)		—		(74)
Payments for share repurchase activity	—		—		(179)		—		(179)
Purchase of and distributions to noncontrolling interests from subsidiaries	—		(2)		—		—		(2)
Proceeds from issuance of long-term debt	—		—		59		—		59
Repayments of long-term debt	(59)		(1)		—		—		(60)
Net proceeds from Revolving Credit Facility	—		—		552		—		552
Other	(3)		—		—		—		(3)
Net Cash (Used)/Provided by Financing Activities	(125)		(59)		(280)		757		293
Net Increase/(Decrease) in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	21		(2)		414		—		433
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	37		21		327		—		385
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$	58	$	19	$	741	$	—	$	818

(a)All significant intercompany transactions have been eliminated in consolidation

NRG ENERGY, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS

For the three months ended March 31, 2019

(Unaudited)

(In millions)	Guarantor Subsidiaries		Non-Guarantor Subsidiaries		NRG Energy, Inc. (Note Issuer)		Eliminations(a)		Consolidated
Cash Flows from Operating Activities
Net income	$	255	$	54	$	482	$	(309)	$	482
Income from discontinued operations	9		5		374		—		388
Income from continuing operations	246		49		108		(309)		94
Adjustments to reconcile net income to cash provided by operating activities:
Distributions from and equity in earnings/(losses) of unconsolidated affiliates and consolidated subsidiaries	(10)		21		(299)		309		21
Depreciation and amortization	54		23		8		—		85
Accretion of asset retirement obligations	5		2		—		—		7
Provision for credit losses	23		3		—		—		26
Amortization of nuclear fuel	13		—		—		—		13
Amortization of financing costs and debt discount/premiums	—		—		7		—		7
Amortization of emission allowances and energy credits	6		—		—		—		6
Amortization of unearned equity compensation	—		—		4		—		4
Net loss on sale of assets and disposal of assets	—		—		3		—		3
Changes in derivative instruments	(29)		5		9		—		(15)
Changes in deferred income taxes and liability for uncertain tax benefits	—		1		(3)		—		(2)
Changes in collateral deposits in support of energy risk management activities	(114)		(9)		—		—		(123)
Changes in nuclear decommissioning trust liability	9		—		—		—		9
Changes in other working capital	(211)		(137)		114		—		(234)
Cash used by continuing operations	(8)		(42)		(49)		—		(99)
Cash provided/(used) by discontinued operations	17		(9)		—		—		8
Net Cash Provided/(Used) by Operating Activities	9		(51)		(49)		—		(91)
Cash Flows from Investing Activities
Intercompany dividends	—		—		311		(311)		—
Payments for acquisitions of businesses	(16)		—		—		—		(16)
Capital expenditures	(36)		(6)		(7)		—		(49)
Investments in nuclear decommissioning trust fund securities	(122)		—		—		—		(122)
Proceeds from the sale of nuclear decommissioning trust fund securities	113		—		—		—		113
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	1		404		908		—		1,313
Net distributions from investments in unconsolidated affiliates	—		4		—		—		4
Contributions to discontinued operations	—		(44)		—		—		(44)
Other	—		—		(1)		—		(1)
Cash (used)/provided by continuing operations	(60)		358		1,211		(311)		1,198
Cash used by discontinued operations	—		(2)		—		—		(2)
Net Cash (Used)/Provided by Investing Activities	(60)		356		1,211		(311)		1,196
Cash Flows from Financing Activities
Intercompany dividends and transfers	(4)		(290)		(17)		311		—
Payment of dividends to common stockholders	—		—		(8)		—		(8)
Payments for share repurchase activity	—		—		(783)		—		(783)
Net distributions to noncontrolling interests from subsidiaries	—		(1)		—		—		(1)
Proceeds from issuance of common stock	—		—		2		—		2
Payments for long-term debt	—		(33)		(4)		—		(37)
Cash used by continuing operations	(4)		(324)		(810)		311		(827)
Cash provided by discontinued operations	—		43		—		—		43
Net Cash Used by Financing Activities	(4)		(281)		(810)		311		(784)
Change in cash from discontinued operations	17		32		—		—		49
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	(72)		(8)		352		—		272
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	95		38		480		—		613
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$	23	$	30	$	832	$	—	$	885

(a)All significant intercompany transactions have been eliminated in consolidation

XML

Summary of Significant Accounting Policies - Restricted Cash (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and cash equivalents	$ 759	$ 345
Funds deposited by counterparties	51	32
Restricted cash	8	8
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows	$ 818	$ 385	$ 885	$ 613

XML

Related Party Transactions - Schedule of NRG's Material Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Related Party Transaction [Line Items]
Revenue from related parties	$ 15	$ 12
Gladstone
Related Party Transaction [Line Items]
Revenue from related parties	1	1
Ivanpah
Related Party Transaction [Line Items]
Revenue from related parties	13	10
Midway-Sunset
Related Party Transaction [Line Items]
Revenue from related parties	$ 1	$ 1

XML

Condensed Consolidating Financial Information - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt amount	$ 6,592	$ 6,042
Recourse Debt
Debt Instrument [Line Items]
Debt amount	6,560	$ 6,008
Senior Notes | Recourse Debt
Debt Instrument [Line Items]
Debt amount	4,400
Senior Secured First Lien Notes | Recourse Debt
Debt Instrument [Line Items]
Debt amount	$ 1,100

XML

Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Investments Accounted for by the Equity Method
Equity investments in affiliates	$ 350	$ 388
Current assets	3,479	3,088
Property, plant and equipment, net	2,573	2,593
Other non-current assets	225	240
Total Assets	12,822	12,531
Current liabilities	2,852	2,359
Long-term debt	6,592	6,042
Other non-current liabilities	1,076	1,084
Total Liabilities	11,286	10,853
Variable Interest Entity, Primary Beneficiary
Investments Accounted for by the Equity Method
Current assets	1	3
Property, plant and equipment, net	0	71
Other non-current assets	26	27
Total Assets	27	101
Current liabilities	4	4
Long-term debt	24	24
Other non-current liabilities	4	8
Total Liabilities	32	36
Redeemable noncontrolling interest	0	20
Net Assets Less Noncontrolling Interest	(5)	$ 45
Agua Caliente
Investments Accounted for by the Equity Method
Equity investments in affiliates	213
Ivampah Master Holdings LLC
Investments Accounted for by the Equity Method
Equity investments in affiliates	$ 6
Economic interest in equity method investments (as a percent)	54.50%

XML

Changes in Capital Structure - NRG Common Stock Dividends (Details) - $ / shares		3 Months Ended		12 Months Ended
	Apr. 15, 2020	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Subsequent Event [Line Items]
Common stock dividends proposed annual amount (in usd per share)		$ 1.20		$ 0.12
Dividends per common share (in usd per share)		$ 0.30	$ 0.03
Subsequent Event
Subsequent Event [Line Items]
Common stock dividends declared (in usd per share)	$ 0.30
Minimum
Subsequent Event [Line Items]
Common stock, annual dividend growth rate, percentage		700.00%
Maximum
Subsequent Event [Line Items]
Common stock, annual dividend growth rate, percentage		9.00%

XML

Condensed Consolidating Financial Information - CONSOLIDATING STATEMENTS OF CASH FLOWS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash Flows from Operating Activities
Net Income (Loss)	$ 121	$ 482
Income from discontinued operations	0	388
Income from continuing operations	121	94
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses of unconsolidated affiliates	16	21
Depreciation and amortization	109	85
Accretion of asset retirement obligations	11	7
Provision for credit losses	24	26
Amortization of nuclear fuel	13	13
Amortization of financing costs and debt discount/premiums	6	7
Loss on debt extinguishment, net	1	0
Amortization of emissions allowances and energy credits	7	6
Amortization of unearned equity compensation	5	4
Net loss on sale of assets and disposal of assets	(14)	3
Impairment losses	18
Changes in derivative instruments	(46)	(15)
Changes in deferred income taxes and liability for uncertain tax benefits	19	(2)
Changes in collateral deposits in support of energy risk management activities	9	(123)
Changes in nuclear decommissioning trust liability	8	9
Changes in other working capital	(99)	(234)
Cash provided/(used) by continuing operations	208	(99)
Cash provided by discontinued operations	0	8
Net Cash Provided/(Used) by Operating Activities	208	(91)
Cash Flows from Investing Activities
Intercompany dividends	0	0
Payments for acquisitions of businesses	0	(16)
Capital expenditures	(66)	(49)
Net purchases of /proceeds from emission allowances	(8)	0
Investments in nuclear decommissioning trust fund securities	(121)	(122)
Proceeds from the sale of nuclear decommissioning trust fund securities	112	113
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	15	1,313
Net distributions from investments in unconsolidated affiliates	0	4
Contributions to discontinued operations	0	(44)
Other	0	(1)
Cash (used)/provided by continuing operations	(68)	1,198
Cash provided by (Used) discontinued operations	0	(2)
Net Cash (Used)/Provided by Investing Activities	(68)	1,196
Cash Flows from Financing Activities
Intercompany dividends and transfers	0	0
Payments of dividends to common stockholders	(74)	(8)
Payments for share repurchase activity	(179)	(783)
Purchase of and distributions to noncontrolling interests from subsidiaries	(2)	(1)
Proceeds from issuance of common stock	0	2
Proceeds from issuance of long-term debt	59	0
Repayments of long-term debt	(60)	(37)
Net proceeds from Revolving Credit Facility	552	0
Other	(3)	0
Cash provided/(used) by continuing operations	293	(827)
Cash provided by discontinued operations	0	43
Net Cash Provided/(Used) by Financing Activities	293	(784)
Change in Cash from discontinued operations	0	49
Net Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	433	272
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	385	613
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	818	885
Eliminations
Cash Flows from Operating Activities
Net Income (Loss)	(265)	(309)
Income from discontinued operations		0
Income from continuing operations		(309)
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses of unconsolidated affiliates	265	309
Depreciation and amortization	0	0
Accretion of asset retirement obligations	0	0
Provision for credit losses	0	0
Amortization of nuclear fuel	0	0
Amortization of financing costs and debt discount/premiums	0	0
Loss on debt extinguishment, net	0
Amortization of emissions allowances and energy credits	0	0
Amortization of unearned equity compensation	0	0
Net loss on sale of assets and disposal of assets	0	0
Impairment losses	0
Changes in derivative instruments	0	0
Changes in deferred income taxes and liability for uncertain tax benefits	0	0
Changes in collateral deposits in support of energy risk management activities	0	0
Changes in nuclear decommissioning trust liability	0	0
Changes in other working capital	0	0
Cash provided/(used) by continuing operations		0
Cash provided by discontinued operations		0
Net Cash Provided/(Used) by Operating Activities	0	0
Cash Flows from Investing Activities
Intercompany dividends	(757)	(311)
Payments for acquisitions of businesses		0
Capital expenditures	0	0
Net purchases of /proceeds from emission allowances	0
Investments in nuclear decommissioning trust fund securities	0	0
Proceeds from the sale of nuclear decommissioning trust fund securities	0	0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees		0
Net distributions from investments in unconsolidated affiliates		0
Contributions to discontinued operations		0
Other		0
Cash (used)/provided by continuing operations		(311)
Cash provided by (Used) discontinued operations		0
Net Cash (Used)/Provided by Investing Activities	(757)	(311)
Cash Flows from Financing Activities
Intercompany dividends and transfers	757	311
Payments of dividends to common stockholders	0	0
Payments for share repurchase activity	0	0
Purchase of and distributions to noncontrolling interests from subsidiaries	0	0
Proceeds from issuance of common stock		0
Proceeds from issuance of long-term debt	0
Repayments of long-term debt	0	0
Net proceeds from Revolving Credit Facility	0
Other	0
Cash provided/(used) by continuing operations		311
Cash provided by discontinued operations		0
Net Cash Provided/(Used) by Financing Activities	757	311
Change in Cash from discontinued operations		0
Net Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	0	0
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	0	0
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	0	0
Guarantor Subsidiaries
Cash Flows from Operating Activities
Net Income (Loss)	269	255
Income from discontinued operations		9
Income from continuing operations		246
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses of unconsolidated affiliates	(3)	(10)
Depreciation and amortization	80	54
Accretion of asset retirement obligations	4	5
Provision for credit losses	24	23
Amortization of nuclear fuel	13	13
Amortization of financing costs and debt discount/premiums	0	0
Loss on debt extinguishment, net	0
Amortization of emissions allowances and energy credits	2	6
Amortization of unearned equity compensation	0	0
Net loss on sale of assets and disposal of assets	(8)	0
Impairment losses	0
Changes in derivative instruments	(46)	(29)
Changes in deferred income taxes and liability for uncertain tax benefits	(14)	0
Changes in collateral deposits in support of energy risk management activities	4	(114)
Changes in nuclear decommissioning trust liability	8	9
Changes in other working capital	(130)	(211)
Cash provided/(used) by continuing operations		(8)
Cash provided by discontinued operations		17
Net Cash Provided/(Used) by Operating Activities	203	9
Cash Flows from Investing Activities
Intercompany dividends	0	0
Payments for acquisitions of businesses		(16)
Capital expenditures	(50)	(36)
Net purchases of /proceeds from emission allowances	(8)
Investments in nuclear decommissioning trust fund securities	(121)	(122)
Proceeds from the sale of nuclear decommissioning trust fund securities	112	113
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	10	1
Net distributions from investments in unconsolidated affiliates		0
Contributions to discontinued operations		0
Other		0
Cash (used)/provided by continuing operations		(60)
Cash provided by (Used) discontinued operations		0
Net Cash (Used)/Provided by Investing Activities	(57)	(60)
Cash Flows from Financing Activities
Intercompany dividends and transfers	(63)	(4)
Payments of dividends to common stockholders	0	0
Payments for share repurchase activity	0	0
Purchase of and distributions to noncontrolling interests from subsidiaries	0	0
Proceeds from issuance of common stock		0
Proceeds from issuance of long-term debt	0
Repayments of long-term debt	(59)	0
Net proceeds from Revolving Credit Facility	0
Other	(3)
Cash provided/(used) by continuing operations		(4)
Cash provided by discontinued operations		0
Net Cash Provided/(Used) by Financing Activities	(125)	(4)
Change in Cash from discontinued operations		17
Net Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	21	(72)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	37	95
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	58	23
Non-Guarantor Subsidiaries
Cash Flows from Operating Activities
Net Income (Loss)	(4)	54
Income from discontinued operations		5
Income from continuing operations		49
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses of unconsolidated affiliates	16	21
Depreciation and amortization	20	23
Accretion of asset retirement obligations	7	2
Provision for credit losses	0	3
Amortization of nuclear fuel	0	0
Amortization of financing costs and debt discount/premiums	0	0
Loss on debt extinguishment, net	0
Amortization of emissions allowances and energy credits	5	0
Amortization of unearned equity compensation	0	0
Net loss on sale of assets and disposal of assets	(1)	0
Impairment losses	18
Changes in derivative instruments	0	5
Changes in deferred income taxes and liability for uncertain tax benefits	11	1
Changes in collateral deposits in support of energy risk management activities	5	(9)
Changes in nuclear decommissioning trust liability	0	0
Changes in other working capital	(14)	(137)
Cash provided/(used) by continuing operations		(42)
Cash provided by discontinued operations		(9)
Net Cash Provided/(Used) by Operating Activities	63	(51)
Cash Flows from Investing Activities
Intercompany dividends	0	0
Payments for acquisitions of businesses		0
Capital expenditures	(6)	(6)
Net purchases of /proceeds from emission allowances	0
Investments in nuclear decommissioning trust fund securities	0	0
Proceeds from the sale of nuclear decommissioning trust fund securities	0	0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	0	404
Net distributions from investments in unconsolidated affiliates		4
Contributions to discontinued operations		(44)
Other		0
Cash (used)/provided by continuing operations		358
Cash provided by (Used) discontinued operations		(2)
Net Cash (Used)/Provided by Investing Activities	(6)	356
Cash Flows from Financing Activities
Intercompany dividends and transfers	(56)	(290)
Payments of dividends to common stockholders	0	0
Payments for share repurchase activity	0	0
Purchase of and distributions to noncontrolling interests from subsidiaries	(2)	(1)
Proceeds from issuance of common stock		0
Proceeds from issuance of long-term debt	0
Repayments of long-term debt	(1)	(33)
Net proceeds from Revolving Credit Facility	0
Other	0
Cash provided/(used) by continuing operations		(324)
Cash provided by discontinued operations		43
Net Cash Provided/(Used) by Financing Activities	(59)	(281)
Change in Cash from discontinued operations		32
Net Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	(2)	(8)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	21	38
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	19	30
NRG Energy, Inc. (Note Issuer)
Cash Flows from Operating Activities
Net Income (Loss)	121	482
Income from discontinued operations		374
Income from continuing operations		108
Adjustments to reconcile net income/(loss) to cash provided by operating activities:
Distributions from and equity in losses of unconsolidated affiliates	(262)	(299)
Depreciation and amortization	9	8
Accretion of asset retirement obligations	0	0
Provision for credit losses	0	0
Amortization of nuclear fuel	0	0
Amortization of financing costs and debt discount/premiums	6	7
Loss on debt extinguishment, net	1
Amortization of emissions allowances and energy credits	0	0
Amortization of unearned equity compensation	5	4
Net loss on sale of assets and disposal of assets	(5)	3
Impairment losses	0
Changes in derivative instruments	0	9
Changes in deferred income taxes and liability for uncertain tax benefits	22	(3)
Changes in collateral deposits in support of energy risk management activities	0	0
Changes in nuclear decommissioning trust liability	0	0
Changes in other working capital	45	114
Cash provided/(used) by continuing operations		(49)
Cash provided by discontinued operations		0
Net Cash Provided/(Used) by Operating Activities	(58)	(49)
Cash Flows from Investing Activities
Intercompany dividends	757	311
Payments for acquisitions of businesses		0
Capital expenditures	(10)	(7)
Net purchases of /proceeds from emission allowances	0
Investments in nuclear decommissioning trust fund securities	0	0
Proceeds from the sale of nuclear decommissioning trust fund securities	0	0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	5	908
Net distributions from investments in unconsolidated affiliates		0
Contributions to discontinued operations		0
Other		(1)
Cash (used)/provided by continuing operations		1,211
Cash provided by (Used) discontinued operations		0
Net Cash (Used)/Provided by Investing Activities	752	1,211
Cash Flows from Financing Activities
Intercompany dividends and transfers	(638)	(17)
Payments of dividends to common stockholders	(74)	(8)
Payments for share repurchase activity	(179)	(783)
Purchase of and distributions to noncontrolling interests from subsidiaries	0	0
Proceeds from issuance of common stock		2
Proceeds from issuance of long-term debt	59
Repayments of long-term debt	0	(4)
Net proceeds from Revolving Credit Facility	552
Other	0
Cash provided/(used) by continuing operations		(810)
Cash provided by discontinued operations		0
Net Cash Provided/(Used) by Financing Activities	(280)	(810)
Change in Cash from discontinued operations		0
Net Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	414	352
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	327	480
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$ 741	$ 832

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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends per common share (in usd per share)	$ 0.30	$ 0.03

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Fair Value of Financial Instruments - Derivative Fair Value Measurements (Details) $ in Millions	Mar. 31, 2020 USD ($) $ / MWh	Dec. 31, 2019 USD ($) $ / MWh
Liabilities
Derivative liabilities	$ 1,202	$ 1,103
Level 3
Liabilities
Derivative liabilities	119	155
Commodity contracts
Assets
Derivative assets	1,318	1,170
Liabilities
Derivative liabilities	1,202	1,103
Commodity contracts | Level 3
Assets
Derivative assets	192	193
Liabilities
Derivative liabilities	119	155
Commodity contracts | Level 3 | Power Contracts
Assets
Derivative assets	150	151
Liabilities
Derivative liabilities	$ 107	$ 139
Commodity contracts | Level 3 | Power Contracts | Low
Fair Value Inputs / Range
Forward Market Price (per MWh) | $ / MWh	6	8
Commodity contracts | Level 3 | Power Contracts | High
Fair Value Inputs / Range
Forward Market Price (per MWh) | $ / MWh	165	218
Commodity contracts | Level 3 | Power Contracts | Weighted Average
Fair Value Inputs / Range
Forward Market Price (per MWh) | $ / MWh	25	24
Commodity contracts | Level 3 | FTRs
Assets
Derivative assets	$ 42	$ 42
Liabilities
Derivative liabilities	$ 12	$ 16
Commodity contracts | Level 3 | FTRs | Low
Fair Value Inputs / Range
Derivative, Auction Price | $ / MWh	(380)	(105)
Commodity contracts | Level 3 | FTRs | High
Fair Value Inputs / Range
Derivative, Auction Price | $ / MWh	91	213
Commodity contracts | Level 3 | FTRs | Weighted Average
Fair Value Inputs / Range
Derivative, Auction Price | $ / MWh	0	0

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 759	$ 345
Funds deposited by counterparties	51	32
Restricted cash	8	8
Accounts receivable, net	915	1,025
Inventory	372	383
Derivative instruments	884	860
Cash collateral paid in support of energy risk management activities	200	190
Prepayments and other current assets	290	245
Total current assets	3,479	3,088
Property, plant and equipment, net	2,573	2,593
Other Assets
Equity investments in affiliates	350	388
Operating lease right-of-use assets, net	446	464
Goodwill	579	579
Intangible assets, net	769	789
Nuclear decommissioning trust fund	702	794
Derivative instruments	434	310
Deferred income taxes	3,265	3,286
Other non-current assets	225	240
Total other assets	6,770	6,850
Total Assets	12,822	12,531
Current Liabilities
Current portion of long-term debt	640	88
Current portion of operating lease liabilities	71	73
Accounts payable	708	722
Derivative instruments	832	781
Cash collateral received in support of energy risk management activities	51	32
Accrued expenses and other current liabilities	550	663
Total current liabilities	2,852	2,359
Other Liabilities
Long-term debt	5,807	5,803
Non-current operating lease liabilities	473	483
Nuclear decommissioning reserve	303	298
Nuclear decommissioning trust liability	390	487
Derivative instruments	370	322
Deferred income taxes	15	17
Other non-current liabilities	1,076	1,084
Total other liabilities	8,434	8,494
Total Liabilities	11,286	10,853
Redeemable noncontrolling interest in subsidiaries	0	20
Commitments and Contingencies
Stockholders' Equity
Common stock; $0.01 par value; 500,000,000 shares authorized; 422,979,893 and 421,890,790 shares issued and 245,623,854 and 248,996,189 shares outstanding at March 31, 2020 and December 31, 2019, respectively	4	4
Additional paid-in-capital	8,498	8,501
Accumulated deficit	(1,570)	(1,616)
Treasury stock, at cost - 177,356,039 and 172,894,601 shares at March 31, 2020 and December 31, 2019, respectively	(5,189)	(5,039)
Accumulated other comprehensive loss	(207)	(192)
Total Stockholders' Equity	1,536	1,658
Total Liabilities and Stockholders' Equity	$ 12,822	$ 12,531

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Fair Value of Financial Instruments - Estimated Carrying Amounts and Fair Value of Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, including current portion	$ 6,592	$ 6,042
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notes receivable	10	11
Long-term debt, including current portion	6,510	5,956
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notes receivable	7	8
Long-term debt, including current portion	6,634	6,504
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, including current portion	5,967	6,388
Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, including current portion	$ 667	$ 116

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Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Estimated carrying amounts and fair values of NRG's recorded financial instruments not carried at fair market value

The estimated carrying amounts and fair values of NRG's recorded financial instruments not carried at fair market value are as follows:

	March 31, 2020				December 31, 2019
(In millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Notes receivable	$	10	$	7	$	11	$	8
Liabilities:
Long-term debt, including current portion (a)	6,510		6,634		5,956		6,504

(a) Excludes deferred financing costs, which are recorded as a reduction to long-term debt in the Company's consolidated balance sheets

Fair value hierarchy for long-term debt

The following table presents the level within the fair value hierarchy for long-term debt, including current portion, as of March 31, 2020 and December 31, 2019:

	March 31, 2020				December 31, 2019
(In millions)	Level 2		Level 3		Level 2		Level 3
Long-term debt, including current portion	$	5,967	$	667	$	6,388	$	116

Assets and liabilities measured and recorded at fair value on the consolidated balance sheets on a recurring basis

The following tables present assets and liabilities measured and recorded at fair value on the Company's condensed consolidated balance sheets on a recurring basis and their level within the fair value hierarchy:

	March 31, 2020
(In millions)	Total		Level 1		Level 2		Level 3
Investments in securities (classified within other current and non-current assets)	$	13	$	—	$	13	$	—
Nuclear trust fund investments:
Cash and cash equivalents	21		21		—		—
U.S. government and federal agency obligations	57		56		1		—
Federal agency mortgage-backed securities	93		—		93		—
Commercial mortgage-backed securities	33		—		33		—
Corporate debt securities	125		—		125		—
Equity securities	308		308		—		—
Foreign government fixed income securities	5		—		5		—
Other trust fund investments:
U.S. government and federal agency obligations	1		1		—		—
Derivative assets:
Commodity contracts	1,318		111		1,015		192
Measured using net asset value practical expedient:
Equity securities — nuclear trust fund investments	60
Equity securities	6
Total assets	$	2,040	$	497	$	1,285	$	192
Derivative liabilities:
Commodity contracts	$	1,202	$	193	$	890	$	119
Total liabilities	$	1,202	$	193	$	890	$	119

	December 31, 2019
(In millions)	Total		Level 1		Level 2		Level 3
Investments in securities (classified within other current and non-current assets)	$	20	$	—	$	20	$	—
Nuclear trust fund investments:
Cash and cash equivalents	17		17		—		—
U.S. government and federal agency obligations	68		68		—		—
Federal agency mortgage-backed securities	100		—		100		—
Commercial mortgage-backed securities	29		—		29		—
Corporate debt securities	109		—		109		—
Equity securities	388		388		—		—
Foreign government fixed income securities	5		—		5		—
Other trust fund investments:
U.S. government and federal agency obligations	1		1		—		—
Derivative assets:
Commodity contracts	1,170		84		893		193
Measured using net asset value practical expedient:
Equity securities — nuclear trust fund investments	78
Equity securities	8
Total assets	$	1,993	$	558	$	1,156	$	193
Derivative liabilities:
Commodity contracts	$	1,103	$	143	$	805	$	155
Total liabilities	$	1,103	$	143	$	805	$	155

Reconciliation of 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

The following table reconciles, for the three months ended March 31, 2020 and 2019, the beginning and ending balances for financial instruments that are recognized at fair value in the condensed consolidated financial statements, using significant unobservable inputs:

	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
	Three months ended March 31, 2020		Three months ended March 31, 2019
(In millions)	Derivatives(a)		Debt Securities		Derivatives(a)		Total
Beginning balance	$	38	$	19	$	20	$	39
Total gains/(losses) realized/unrealized— included in earnings	22		—		(10)		(10)
Cash received	—		(1)		—		(1)
Purchases	8		—		(2)		(2)
Transfers into Level 3(b)	8		—		17		17
Transfers out of Level 3(b)	(3)		—		(27)		(27)
Ending balance	$	73	$	18	$	(2)	$	16
(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 period end	$	(9)	$	—	$	(12)	$	(12)

(a)Consists of derivative 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 in/out are with Level 2

Significant unobservable inputs used developing fair values, Quantitative Information

The following tables quantify the significant unobservable inputs used in developing the fair value of the Company's Level 3 positions as of March 31, 2020 and December 31, 2019:

	March 31, 2020
	Fair Value						Input/Range
(In millions)	Assets		Liabilities		Valuation Technique	Significant Unobservable Input	Low		High		Weighted Average
Power Contracts	$	150	$	107	Discounted Cash Flow	Forward Market Price (per MWh)	$	6	$	165	$	25
FTRs	42		12		Discounted Cash Flow	Auction Prices (per MWh)	(380)		91		0
	$	192	$	119

	December 31, 2019
	Fair Value						Input/Range
(In millions)	Assets		Liabilities		Valuation Technique	Significant Unobservable Input	Low		High		Weighted Average
Power Contracts	$	151	$	139	Discounted Cash Flow	Forward Market Price (per MWh)	$	8	$	218	$	24
FTRs	42		16		Discounted Cash Flow	Auction Prices (per MWh)	(105)		213		0
	$	193	$	155

Fair value inputs, sensitivity analysis

The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable inputs as of March 31, 2020 and December 31, 2019:

Significant Unobservable Input	Position	Change In Input	Impact on Fair Value Measurement
Forward Market Price Power	Buy	Increase/(Decrease)	Higher/(Lower)
Forward Market Price Power	Sell	Increase/(Decrease)	Lower/(Higher)
FTR Prices	Buy	Increase/(Decrease)	Higher/(Lower)
FTR Prices	Sell	Increase/(Decrease)	Lower/(Higher)

Net counterparty credit exposure by industry sector and by counterparty credit quality

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.

	Net Exposure(a)(b)
Category by Industry Sector	(% of Total)
Utilities, energy merchants, marketers and other	81	%
Financial institutions	19
Total as of March 31, 2020	100	%

	Net Exposure (a)(b)
Category by Counterparty Credit Quality	(% of Total)
Investment grade	53	%
Non-investment grade/non-rated	47
Total as of March 31, 2020	100	%

(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

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Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs (Tables)

3 Months Ended

Mar. 31, 2020

Variable Interest Entities Disclosure [Abstract]

Financial Information for Consolidated VIEs

The summarized financial information for the Company's consolidated VIEs consisted of the following:

(In millions)	March 31, 2020		December 31, 2019
Current assets	$	1	$	3
Net property, plant and equipment	—		71
Other long-term assets	26		27
Total assets	27		101
Current liabilities	4		4
Long-term debt	24		24
Other long-term liabilities	4		8
Total liabilities	32		36
Redeemable noncontrolling interest	—		20
Net assets less noncontrolling interest	$	(5)	$	45

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Accounting for Derivative Instruments and Hedging Activities

3 Months Ended

Mar. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Accounting for Derivative Instruments and Hedging Activities

Accounting for Derivative Instruments and Hedging Activities

Energy-Related Commodities

As of March 31, 2020, NRG had energy-related derivative instruments extending through 2034. The Company marks these derivatives to market through the statement of operations. NRG has executed power purchase agreements extending through 2036 that qualified for the NPNS exception and were therefore exempt from fair value accounting treatment.

Interest Rate Swaps

NRG was 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 entered into interest rate swap agreements. As of March 31, 2020, NRG had no interest rate derivative instruments as a result of the early termination of such contracts in connection with the repayment of the 2023 Term Loan Facility during the second quarter of 2019.

Volumetric Underlying Derivative Transactions

The following table summarizes the net notional volume buy/(sell) of NRG's open derivative transactions broken out by category, excluding those derivatives that qualified for the NPNS exception, as of March 31, 2020 and December 31, 2019. 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.

		Total Volume (In millions)
Category	Units	March 31, 2020	December 31, 2019
Emissions	Short Ton	1	3
Renewable Energy Certificates	Certificates	1	1
Coal	Short Ton	7	10
Natural Gas	MMBtu	(152)	(181)
Power	MWh	46	38
Capacity	MW/Day	(1)	(1)

Fair Value of Derivative Instruments

The following table summarizes the fair value within the derivative instrument valuation on the balance sheets:

	Fair Value
	Derivative Assets				Derivative Liabilities
(In millions)	March 31, 2020		December 31, 2019		March 31, 2020		December 31, 2019
Derivatives Not Designated as Cash Flow or Fair Value Hedges:
Commodity contracts current	$	884	$	860	$	832	$	781
Commodity contracts long-term	434		310		370		322
Total Derivatives Not Designated as Cash Flow or Fair Value Hedges	$	1,318	$	1,170	$	1,202	$	1,103

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 of 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 / Liabilities		Derivative Instruments		Cash Collateral (Held) / Posted		Net Amount
As of March 31, 2020
Commodity contracts:
Derivative assets	$	1,318	$	(1,010)	$	(17)	$	291
Derivative liabilities	(1,202)		1,010		94		(98)
Total commodity contracts	$	116	$	—	$	77	$	193

	Gross Amounts Not Offset in the Statement of Financial Position
(In millions)	Gross Amounts of Recognized Assets / Liabilities		Derivative Instruments		Cash Collateral (Held) / Posted		Net Amount
As of December 31, 2019
Commodity contracts:
Derivative assets	$	1,170	$	(909)	$	(7)	$	254
Derivative liabilities	(1,103)		909		73		(121)
Total commodity contracts	$	67	$	—	$	66	$	133

Impact of Derivative Instruments on the Statements of Operations

Unrealized gains and losses associated with changes in the fair value of derivative instruments not accounted for as cash flow and fair value 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 commodity hedges is included within operating revenues and cost of operations and the effect of interest rate hedges is included in interest expense.

(In millions)	Three months ended March 31,
Unrealized mark-to-market results	2020		2019
Reversal of previously recognized unrealized losses on settled positions related to economic hedges	$	9	$	19
Reversal of acquired loss/(gain) positions related to economic hedges	1		(2)
Net unrealized gains on open positions related to economic hedges	34		3
Total unrealized mark-to-market gains for economic hedging activities	44		20
Reversal of previously recognized unrealized (gains) on settled positions related to trading activity	(2)		(6)
Net unrealized gains on open positions related to trading activity	13		13
Total unrealized mark-to-market gains for trading activity	11		7
Total unrealized gains	$	55	$	27

	Three months ended March 31,
(In millions)	2020		2019
Unrealized gains included in operating revenues	$	7	$	27
Unrealized gains included in cost of operations	48		—
Total impact to statement of operations — energy commodities	$	55	$	27
Total impact to statement of operations — interest rate contracts	$	—	$	(9)

The reversals of acquired gain or loss 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 operating revenue or cost of operations during the same period.

For the three months ended March 31, 2020, the $34 million unrealized gain from open economic hedge positions was primarily the result of an increase in value of forward power positions due to a decrease in West/Other power prices, as well as an increase in value of ERCOT heat rate positions due to ERCOT heat rate expansion.

For the three months ended March 31, 2019, the $3 million unrealized gain from open economic hedge positions was primarily the result of an increase in value of forward power positions due to a decrease in power prices.

Credit Risk Related Contingent Features

Certain of the Company's hedging agreements contain provisions that require the Company to post additional collateral if the counterparty determines that there has been deterioration in credit quality, generally termed “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. The collateral required for contracts with adequate assurance clauses that are in a net liability position as of March 31, 2020 was $12 million. The collateral required for contracts with credit rating contingent features that are in a net liability position as of March 31, 2020 was $25 million. 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 $1 million as of March 31, 2020.

See Note 5, Fair Value of Financial Instruments, for discussion regarding concentration of credit risk.

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Revenue Recognition

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Revenue Recognition

Revenue Recognition

Performance Obligations

As of March 31, 2020, estimated future fixed fee performance obligations are $442 million for the remaining nine months of fiscal year 2020, and $607 million, $305 million, $42 million and $8 million for the fiscal years 2021, 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.

Disaggregated Revenues

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the three months ended March 31, 2020 and 2019:

	Three months ended March 31, 2020
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Retail revenue:
Mass Market	$	1,032	$	347	$	—	$	(1)	$	1,378
Business Solutions	260		23		—		—		283
Total retail revenue	1,292		370		—		(1)		1,661
Energy revenue(a)	5		45		75		(1)		124
Capacity revenue(a)	—		134		15		—		149
Mark-to-market for economic hedging activities(b)	—		(20)		15		1		(4)
Other revenue(a)	61		10		20		(2)		89
Total operating revenue	1,358		539		125		(3)		2,019
Less: Lease revenue	—		—		5		—		5
Less: Realized and unrealized ASC 815 revenue	7		39		44		(1)		89
Total revenue from contracts with customers	$	1,351	$	500	$	76	$	(2)	$	1,925
(a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above:
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Energy revenue	$	—	$	35	$	19	$	(1)	$	53
Capacity revenue	—		24		—		—		24
Other revenue	7		—		10		(1)		16
(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

	Three months ended March 31, 2019
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Retail revenue:
Mass Market	$	995	$	320	$	—	$	(2)	$	1,313
Business Solutions	258		18		—		—		276
Total retail revenue	1,253		338		—		(2)		1,589
Energy revenue(a)	105		126		58		1		290
Capacity revenue(a)	—		144		12		—		156
Mark-to-market for economic hedging activities(b)	31		(15)		4		—		20
Other revenue(a)	77		16		19		(2)		110
Total operating revenue	1,466		609		93		(3)		2,165
Less: Lease revenue	—		—		5		—		5
Less: Realized and unrealized ASC 815 revenue	315		54		12		—		381
Total revenue from contracts with customers	$	1,151	$	555	$	76	$	(3)	$	1,779
(a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above:
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Energy revenue	$	271	$	47	$	2	$	—	$	320
Capacity revenue	—		18		—		—		18
Other revenue	13		4		6		—		23
(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

Contract Balances

The following table reflects the contract assets and liabilities included in the Company’s balance sheet as of March 31, 2020 and December 31, 2019:

(In millions)	March 31, 2020		December 31, 2019
Deferred customer acquisition costs	$	133	$	133
Accounts receivable, net - Contracts with customers	885		1,002
Accounts receivable, net - Derivative instruments	26		18
Accounts receivable, net - Affiliate	4		5
Total accounts receivable, net	$	915	$	1,025
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)	$	328	$	402
Deferred revenues(a)	87		82

(a) Deferred revenues from contracts with customers for the three months ended March 31, 2020 and the year ended December 31, 2019 were approximately $27 million and $24 million, respectively

The revenue recognized from contracts with customers during both the three months ended March 31, 2020 and 2019 relating to the deferred revenue balance at the beginning of each period was $13 million. The change in deferred revenue balances during the three months ended March 31, 2020 and 2019 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.

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Changes in Capital Structure

3 Months Ended

Mar. 31, 2020

Equity [Abstract]

Changes in Capital Structure

Changes in Capital Structure

As of March 31, 2020 and December 31, 2019, the Company had 500,000,000 shares of common stock authorized. The following table reflects the changes in NRG's common stock issued and outstanding:

	Issued	Treasury	Outstanding
Balance as of December 31, 2019	421,890,790	(172,894,601)	248,996,189
Shares issued under LTIPs	1,089,103	—	1,089,103
Shares repurchased	—	(4,461,438)	(4,461,438)
Balance as of March 31, 2020	422,979,893	(177,356,039)	245,623,854
Shares issued under LTIPs	1,096	—	1,096
Shares issued under ESPP	—	63,455	63,455
Shares repurchased	—	(1,601,345)	(1,601,345)
Balance as of May 7, 2020	422,980,989	(178,893,929)	244,087,060

Share Repurchases

The Company adopted in the fourth quarter of 2019 a long-term capital allocation policy 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 discussed below, supplemented by share repurchases. The following repurchases have been made during the three months ended March 31, 2020 and through May 7, 2020:

	Total number of shares purchased	Average price paid per share	Amounts paid for shares purchased (in millions)
2020 repurchases:
Repurchases	4,461,438		$	150
Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances(a)	710,063		27
Total Share Repurchases during the three months ended March 31, 2020	5,171,501	$34.20	177
Repurchases made subsequent to March 31, 2020	1,601,345		$	47
Total Share Repurchases January 1, 2020 through May 7, 2020	6,772,846	$33.05	$	224

(a) 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 $38.24

Employee Stock Purchase Plan

In March 2019, the Company reopened participation in the ESPP, which allows eligible employees to elect to withhold between 1% and 10% of their eligible compensation to purchase shares of NRG common stock at the lesser of 95% of its market value on the offering date or 95% of the fair market value on the exercise date. An offering date will occur each April 1 and October 1. An exercise date will occur each September 30 and March 31. In April 2020, 63,455 shares of common stock were issued to employee accounts from treasury stock for the offering period of October 1, 2019 to March 31, 2020.

NRG Common Stock Dividends

Beginning in the first quarter of 2020, NRG increased the annual dividend to $1.20 from $0.12 per share and expects to target an annual dividend growth rate of 7-9% per share in subsequent years. A quarterly dividend of $0.30 per share was paid on the Company's common stock during the three months ended March 31, 2020. On April 15, 2020, NRG declared a quarterly dividend on the Company's common stock of $0.30 per share, payable May 15, 2020 to stockholders of record as of May 1, 2020.

The Company's common stock dividends are subject to available capital, market conditions, and compliance with associated laws, regulations and other contractual obligations.

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Condensed Consolidating Financial Information - CONSOLIDATING STATEMENTS OF OPERATIONS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Revenues
Total operating revenues	$ 2,019	$ 2,165
Operating Costs and Expenses
Cost of operations	1,457	1,651
Depreciation and amortization	109	85
Selling, general and administrative	209	194
Reorganization costs	3	13
Development costs	3	2
Total operating costs and expenses	1,781	1,945
Gain on sale of assets	6	1
Operating Income/(Loss)	244	221
Other (Expense)/Income
Equity in earnings of consolidated subsidiaries	0	0
Equity in losses of unconsolidated affiliates	(11)	(21)
Impairment losses on investments	(18)	0
Other income, net	27	12
Interest expense	(98)	(114)
Total other income/(expense)	(100)	(123)
Income from Continuing Operations Before Income Taxes	144	98
Income tax expense	23	4
Income from Continuing Operations	121	94
Income from discontinued operations, net of income tax	0	388
Net Income (Loss)	121	482
Eliminations
Operating Revenues
Total operating revenues	(11)	1
Operating Costs and Expenses
Cost of operations	(11)	1
Depreciation and amortization	0	0
Selling, general and administrative	0	0
Reorganization costs	0	0
Development costs	0	0
Total operating costs and expenses	(11)	1
Gain on sale of assets	0	0
Operating Income/(Loss)	0	0
Other (Expense)/Income
Equity in earnings of consolidated subsidiaries	(265)	(309)
Equity in losses of unconsolidated affiliates	0	0
Impairment losses on investments	0
Other income, net	0	0
Interest expense	0	0
Total other income/(expense)	(265)	(309)
Income from Continuing Operations Before Income Taxes	(265)	(309)
Income tax expense	0	0
Income from Continuing Operations		(309)
Income from discontinued operations, net of income tax		0
Net Income (Loss)	(265)	(309)
Guarantor Subsidiaries
Operating Revenues
Total operating revenues	1,778	1,769
Operating Costs and Expenses
Cost of operations	1,290	1,358
Depreciation and amortization	80	54
Selling, general and administrative	140	122
Reorganization costs	0	0
Development costs	0	0
Total operating costs and expenses	1,510	1,534
Gain on sale of assets	0	1
Operating Income/(Loss)	268	236
Other (Expense)/Income
Equity in earnings of consolidated subsidiaries	3	10
Equity in losses of unconsolidated affiliates	0	0
Impairment losses on investments	0
Other income, net	3	4
Interest expense	(5)	(4)
Total other income/(expense)	1	10
Income from Continuing Operations Before Income Taxes	269	246
Income tax expense	0	0
Income from Continuing Operations		246
Income from discontinued operations, net of income tax		9
Net Income (Loss)	269	255
Non-Guarantor Subsidiaries
Operating Revenues
Total operating revenues	252	395
Operating Costs and Expenses
Cost of operations	202	283
Depreciation and amortization	19	23
Selling, general and administrative	5	16
Reorganization costs	0	0
Development costs	0	0
Total operating costs and expenses	226	322
Gain on sale of assets	1	0
Operating Income/(Loss)	27	73
Other (Expense)/Income
Equity in earnings of consolidated subsidiaries	0	0
Equity in losses of unconsolidated affiliates	(11)	(21)
Impairment losses on investments	(18)
Other income, net	(1)	1
Interest expense	(1)	(4)
Total other income/(expense)	(31)	(24)
Income from Continuing Operations Before Income Taxes	(4)	49
Income tax expense	0	0
Income from Continuing Operations		49
Income from discontinued operations, net of income tax		5
Net Income (Loss)	(4)	54
NRG Energy, Inc. (Note Issuer)
Operating Revenues
Total operating revenues	0	0
Operating Costs and Expenses
Cost of operations	(24)	9
Depreciation and amortization	10	8
Selling, general and administrative	64	56
Reorganization costs	3	13
Development costs	3	2
Total operating costs and expenses	56	88
Gain on sale of assets	5	0
Operating Income/(Loss)	(51)	(88)
Other (Expense)/Income
Equity in earnings of consolidated subsidiaries	262	299
Equity in losses of unconsolidated affiliates	0	0
Impairment losses on investments	0
Other income, net	25	7
Interest expense	(92)	(106)
Total other income/(expense)	195	200
Income from Continuing Operations Before Income Taxes	144	112
Income tax expense	23	4
Income from Continuing Operations		108
Income from discontinued operations, net of income tax		374
Net Income (Loss)	$ 121	$ 482

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Changes in Capital Structure - Narrative (Details) - shares	1 Months Ended		3 Months Ended
	Apr. 30, 2020	Mar. 31, 2019	Dec. 31, 2019	Mar. 31, 2020
Capital Structure
Common stock, shares authorized (in shares)			500,000,000	500,000,000
Long-term capital allocation, target allocation, cash generated allocated to growth investments, percentage			50.00%
Long-term capital allocation, target allocation, cash generated allocated returned to shareholders, percentage			50.00%
Employee Stock Purchase Plan, minimum percentage of eligible compensation to purchase shares		1.00%
Employee Stock Purchase Plan, maximum percentage of eligible compensation		10.00%
Employee Stock Purchase Plan, exercise price as percentage of fair value		95.00%
Subsequent Event
Capital Structure
Shares issued to employee accounts (in shares)	63,455

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Earnings Per Share - Reconciliation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Basic income per share:
Net income available to common shareholders	$ 121	$ 482
Weighted average number of common shares outstanding — basic (in shares)	248	278
Income/(loss) per weighted average common share — basic (in usd per share)	$ 0.49	$ 1.73
Diluted income per share:
Net income available to common shareholders	$ 121	$ 482
Weighted average number of common shares outstanding - diluted (in shares)	248	278
Incremental shares attributable to the issuance of equity compensation (treasury stock method) (in shares)	1	2
Weighted average number of common shares outstanding- dilutive (in shares)	249	280
Income/(loss) per weighted average common share — diluted (in usd per share)	$ 0.49	$ 1.72

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Commitments and Contingencies (Details) $ in Millions	Mar. 31, 2020 case	Dec. 31, 2018 facility	Aug. 18, 2016 USD ($)
Sierra Club Et Al V. Midwest Generation LLC
Loss Contingencies
Number of facilities | facility		4
XOOM Energy Litigation
Loss Contingencies
Pending lawsuits | case	2
Lignite Contract With Texas Westmoreland Coal Co.
Loss Contingencies
Bond obligation | $			$ 99

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Fair Value of Financial Instruments - Derivative Fair Value Measurements, Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Fair Value Disclosures [Abstract]
Total derivative assets valued with prices provided by models and other valuation techniques (as a percent)	15.00%
Total derivative liabilities valued with prices provided by models and other valuation techniques (as a percent)	10.00%
Decrease in cost of operations	$ 2

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)	Mar. 31, 2020 $ / shares shares
Statement of Financial Position [Abstract]
Common stock, par or value (in usd per share) | $ / shares	$ 0.01
Common stock, shares authorized (in shares)	500,000,000
Common stock, shares issued (in shares)	422,979,893
Common stock, shares outstanding (in shares)	245,623,854
Treasury stock, shares (in shares)	177,356,039

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Discontinued Operations and Dispositions - Summarized Results of Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain from discontinued operations, net of tax	$ 0	$ 388
Discontinued Operations, Disposed of by Sale | South Central Portfolio
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating revenues		31
Operating costs and expenses		(23)
Gain from operations of discontinued components		8
Gain on disposal of discontinued operations, net of tax		27
Gain from discontinued operations, net of tax		35
Discontinued Operations, Disposed of by Sale | Carlsbad Energy Holdings LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating revenues		19
Operating costs and expenses		(9)
Other expense		(5)
Gain from operations of discontinued components		5
Gain on disposal of discontinued operations, net of tax		348
Gain from discontinued operations, net of tax		$ 353

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Cover - shares	3 Months Ended
	Mar. 31, 2020	May 07, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-15891
Entity Registrant Name	NRG Energy, Inc
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	41-1724239
Entity Address, Address Line One	804 Carnegie Center,
Entity Address, City or Town	Princeton
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	08540
City Area Code	609
Local Phone Number	524-4500
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	NRG
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		244,087,060
Entity Central Index Key	0001013871
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1

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Nature of Business and Basis of Presentation

3 Months Ended

Mar. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Business and Basis of Presentation

Nature of Business and Basis of Presentation

General

NRG Energy, Inc., or NRG or the Company, is an integrated power company built on dynamic retail brands with diverse generation assets. NRG brings the power of energy to consumers by producing and selling electricity and related products and services in major competitive power markets in the U.S. and Canada in a manner that delivers value to all of NRG's stakeholders. NRG is a customer-driven business focused on perfecting the integrated model by balancing retail load with generation supply within its deregulated markets. The Company sells energy, services, and innovative, sustainable products and services directly to retail customers under the brand names NRG, Reliant, Green Mountain Energy, Stream, and XOOM Energy, as well as other brand names owned by NRG, supported by approximately 23,000 MW of generation as of March 31, 2020.

The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with the SEC's regulations for interim financial information and with the instructions to Form 10-Q. Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for complete financial statements. The following notes should be read in conjunction with the accounting policies and other disclosures as set forth in the notes to the condensed consolidated financial statements in the Company's 2019 Form 10-K. Interim results are not necessarily indicative of results for a full year.

In the opinion of management, the accompanying unaudited interim condensed consolidated financial statements contain all material adjustments consisting of normal and recurring accruals necessary to present fairly the Company's consolidated financial position as of March 31, 2020, and the results of operations, comprehensive income, cash flows and statements of stockholders' equity for the three months ended March 31, 2020 and 2019.

Segments

As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources.

The Company's businesses are segregated as follows:

•Texas, which includes all activity related to customer, plant and market operations in Texas;

•East, which includes the remaining activity related to customer operations and all activity related to plant and market operations in the East;

•West/Other, which includes the following assets and activities: (i) all activity related to plant and market operations in the West, (ii) activity related to the Cottonwood power plant that was sold to Cleco on February 4, 2019 and is being leased back until 2025, (iii) the remaining renewables activity, including the Company’s equity method investments in Ivanpah Master Holdings, LLC and Agua Caliente, the remaining Home Solar assets and the NFL stadium solar generating assets, and (iv) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and

•Corporate activities.

All affected disclosures have been recast to reflect these changes for all periods presented. For further discussion of segment reporting, refer to Note 13, Segment Reporting.

COVID-19

In March 2020, the World Health Organization categorized COVID-19 as a pandemic and the President of the United States declared the COVID-19 outbreak a national emergency. Electricity has been deemed a 'critical and essential business operation' under various state and federal governmental COVID-19 mandates. NRG remains focused on protecting the health and well-being of its employees, while supporting its customers and the communities in which it operates and assuring the continuity of its operations.

NRG activated its Crisis Management Team ("CMT") in January 2020, which proactively began managing the Company's response to the impacts of COVID-19. The CMT implemented the business continuity plans for the Company and has taken a

variety of measures to ensure the ongoing availability of the Company’s services, while maintaining the Company's commitment to its core values of health and safety. Pursuant to the Company’s Infectious Disease & Pandemic Policy, NRG implemented restrictions on business travel and face-to-face sales channels, instituted remote work practices and enhanced cleaning and hygiene protocols in all of its facilities. In order to effectively serve the Company’s customers, select essential employees and contractors are continuing to report to plant and certain office locations. The Company is also requiring pre-entry screening, including temperature checks, separation of work crews, additional personal protective equipment for employees and contractors when social distancing cannot be maintained, and a ban on all non-essential visitors. As a result of these business continuity measures, the Company has not experienced any material disruptions in its ability to continue its business operations to date.

Use of Estimates

The preparation of financial statements in conformity with GAAP 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.

Reclassifications

Certain prior year amounts have been reclassified for comparative purposes.

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Nuclear Decommissioning Trust Fund (Tables)

3 Months Ended

Mar. 31, 2020

Regulated Operations [Abstract]

Summary of aggregate fair values and unrealized gains and losses (including other-than-temporary impairments) for the securities held in the nuclear decommissioning trust fund

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 March 31, 2020							As of December 31, 2019
(In millions, except maturities)	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	$	21	$	—	$	—	—	$	17	$	—	$	—	—
U.S. government and federal agency obligations	57		10		—		14	68		4		—		11
Federal agency mortgage-backed securities	93		4		—		24	100		3		—		24
Commercial mortgage-backed securities	33		1		1		26	29		1		1		24
Corporate debt securities	125		5		4		12	109		6		—		11
Equity securities	368		228		1		—	466		324		—		—
Foreign government fixed income securities	5		—		—		10	5		—		—		10
Total	$	702	$	248	$	6		$	794	$	338	$	1

Summary of proceeds from sales of available-for-sale securities and the related realized gains and losses

The following table summarizes proceeds from sales of available-for-sale securities held in the trust funds and the related realized gains and losses from these sales. The cost of securities sold is determined on the specific identification method.

	Three months ended March 31,
(In millions)	2020		2019
Realized gains	$	2	$	3
Realized losses	(5)		(2)
Proceeds from sale of securities	112		113

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Changes in Capital Structure (Tables)

3 Months Ended

Mar. 31, 2020

Equity [Abstract]

Changes in NRG's common shares issued and outstanding

As of March 31, 2020 and December 31, 2019, the Company had 500,000,000 shares of common stock authorized. The following table reflects the changes in NRG's common stock issued and outstanding:

	Issued	Treasury	Outstanding
Balance as of December 31, 2019	421,890,790	(172,894,601)	248,996,189
Shares issued under LTIPs	1,089,103	—	1,089,103
Shares repurchased	—	(4,461,438)	(4,461,438)
Balance as of March 31, 2020	422,979,893	(177,356,039)	245,623,854
Shares issued under LTIPs	1,096	—	1,096
Shares issued under ESPP	—	63,455	63,455
Shares repurchased	—	(1,601,345)	(1,601,345)
Balance as of May 7, 2020	422,980,989	(178,893,929)	244,087,060

Shares Repurchased

The following repurchases have been made during the three months ended March 31, 2020 and through May 7, 2020:

	Total number of shares purchased	Average price paid per share	Amounts paid for shares purchased (in millions)
2020 repurchases:
Repurchases	4,461,438		$	150
Equivalent shares purchased in lieu of tax withholdings on equity compensation issuances(a)	710,063		27
Total Share Repurchases during the three months ended March 31, 2020	5,171,501	$34.20	177
Repurchases made subsequent to March 31, 2020	1,601,345		$	47
Total Share Repurchases January 1, 2020 through May 7, 2020	6,772,846	$33.05	$	224

(a) 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 $38.24

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Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs

3 Months Ended

Mar. 31, 2020

Variable Interest Entities Disclosure [Abstract]

Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs

Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs

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.

PG&E Bankruptcy — Agua Caliente and two of the three Ivanpah units 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 primary operating subsidiary utility PG&E filed for Chapter 11 relief in the United States Bankruptcy Court for the Northern District of California (the "California Bankruptcy Court"). As a result of the bankruptcy filing, Agua Caliente and the two Ivanpah units have issued notices of events of default under their respective loan agreements. The Ivanpah project signed a forbearance agreement with the U.S. DOE on October 25, 2019. The Company's subsidiaries are working with their partners on the projects and the loan counterparties.

On September 9, 2019, PG&E filed a plan of reorganization that would assume all power purchase agreements, including those held by Agua Caliente and the two Ivanpah units. There are many conditions that must be satisfied before the PG&E plan and assumption of the power purchase agreements can become effective, including, but not limited to, formal approvals by various classes of creditors, the California Bankruptcy Court, and the CPUC. A hearing before the California Bankruptcy Court to consider whether the PG&E plan will be approved and confirmed is currently expected to occur on May 29, 2020.

NRG's maximum exposure to loss is limited to its equity investment, which was $213 million for Agua Caliente and $6 million for Ivanpah as of March 31, 2020.

Variable Interest Entities that are not consolidated

Through its consolidated subsidiary, NRG Solar Ivanpah LLC, NRG owns a 54.5% interest in Ivanpah Master Holdings LLC, the owner of the Ivanpah projects. 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.

Variable Interest Entities that are Consolidated

The Company has a controlling financial interest in certain entities that have been identified as VIEs under ASC 810. These arrangements are primarily 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 credits as further described in Note 2, Summary of Significant Accounting Policies, to the Company's 2019 Form 10-K. During the first quarter of 2020, the Company repurchased its partners' equity interest in one of the partnerships. As the Company retains control of its interest, the repurchase was recorded to equity.

The summarized financial information for the Company's consolidated VIEs consisted of the following:

(In millions)	March 31, 2020		December 31, 2019
Current assets	$	1	$	3
Net property, plant and equipment	—		71
Other long-term assets	26		27
Total assets	27		101
Current liabilities	4		4
Long-term debt	24		24
Other long-term liabilities	4		8
Total liabilities	32		36
Redeemable noncontrolling interest	—		20
Net assets less noncontrolling interest	$	(5)	$	45

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Nuclear Decommissioning Trust Fund

3 Months Ended

Mar. 31, 2020

Regulated Operations [Abstract]

Nuclear Decommissioning Trust Fund

Nuclear Decommissioning Trust Fund

NRG's Nuclear Decommissioning Trust Fund assets, which are for the decommissioning of its 44% interest in STP, are comprised of securities classified as available-for-sale and recorded at fair value based on actively quoted market prices. NRG accounts for the Nuclear Decommissioning Trust Fund in accordance with ASC 980, Regulated Operations, 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 OCI, 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 March 31, 2020							As of December 31, 2019
(In millions, except maturities)	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	$	21	$	—	$	—	—	$	17	$	—	$	—	—
U.S. government and federal agency obligations	57		10		—		14	68		4		—		11
Federal agency mortgage-backed securities	93		4		—		24	100		3		—		24
Commercial mortgage-backed securities	33		1		1		26	29		1		1		24
Corporate debt securities	125		5		4		12	109		6		—		11
Equity securities	368		228		1		—	466		324		—		—
Foreign government fixed income securities	5		—		—		10	5		—		—		10
Total	$	702	$	248	$	6		$	794	$	338	$	1

The following table summarizes proceeds from sales of available-for-sale securities held in the trust funds and the related realized gains and losses from these sales. The cost of securities sold is determined on the specific identification method.

	Three months ended March 31,
(In millions)	2020		2019
Realized gains	$	2	$	3
Realized losses	(5)		(2)
Proceeds from sale of securities	112		113

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Other Balance Sheet Information

The following table presents the accumulated depreciation included in property, plant and equipment, net and accumulated amortization included in intangible assets, net:

(In millions)	March 31, 2020		December 31, 2019
Property, plant and equipment accumulated depreciation	$	1,832	$	1,752
Intangible assets accumulated amortization	1,237		1,262

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 following table represents the activity in the allowance for credit losses for the three months ended March 31, 2020:

	(In millions)
Balance at January 1, 2020	$	43
Provision for credit losses	24
Write-offs	(32)
Recoveries collected	4
Balance at March 31, 2020	$	39

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:

(In millions)	March 31, 2020		December 31, 2019
Cash and cash equivalents	$	759	$	345
Funds deposited by counterparties	51		32
Restricted cash	8		8
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows	$	818	$	385

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 accounts that are not contractually restricted but, based on the Company's intention, are not available 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.

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.

Pension Plan Contributions

On March 27, 2020, the Senate passed the CARES Act to provide necessary emergency relief related to the COVID-19 pandemic. The CARES Act allows NRG and other pension plan sponsors to postpone 2020 contributions until January 1, 2021. As a result, NRG will consider deferring approximately $47 million in cash contributions previously planned to be made to the Company's pension plans in 2020. NRG’s pension and postretirement benefit plans are further described in Note 15, Benefit Plans and Other Postretirement Benefits, to the Company’s 2019 Form 10-K.

Recent Accounting Developments - Guidance Adopted in 2020

ASU 2018-17 — In October 2018, the FASB issued ASU No. 2018-17, Consolidations (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities, or ASU No. 2018-17, in response to stakeholders’ observations that Topic 810, Consolidations, could be improved thereby improving general purpose financial reporting. Specifically, ASU No. 2018-17 requires application of the variable interest entity (VIE) guidance to private companies under common control and consideration of indirect interest held through related parties under common control for determining whether fees paid to decision makers and service providers are variable interests. The amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. All entities are required to apply the amendments retrospectively. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2018-15 — In August 2018, the FASB issued ASU No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in Cloud Computing Arrangement That Is a Service Contract, or ASU No. 2018-15. The amendments in ASU No. 2018-15 align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing costs incurred to develop or obtain internal-use software (and hosting arrangement that include an internal-use software license). The amendment also requires the customer to amortize the capitalized implementation costs of a hosting arrangement that is a service contract over the term of the hosting arrangement. The Company adopted the amendments effective January 1, 2020 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2018-13 — In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirement for Fair value Measurement), or ASU No. 2018-13. The amendments in ASU No. 2018-13 eliminate such disclosures as the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and add new disclosure requirements for Level 3 measurements. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Certain disclosures in ASU No. 2018-13 are required to be applied on a retrospective basis and others on a prospective basis. The Company adopted the amendments effective January 1, 2020. As the amendments contemplates changes in disclosures only, it did not have an impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2016-13 — In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Statements, or ASU No. 2016-13, which was further amended through various updates issued by the FASB thereafter. The guidance in ASU No. 2016-13 provides a new model for recognizing credit losses on financial assets carried at amortized cost using an estimate of expected credit losses, instead of the "incurred loss" methodology previously required for recognizing credit losses that delayed recognition until it was probable that a loss was incurred. The estimate of expected credit losses is to be based on consideration of past events, current conditions and reasonable and supportable forecasts of future conditions. The Company adopted the standard and its subsequent corresponding updates effective January 1, 2020 using the modified retrospective approach. Results for the reporting periods after January 1, 2020 are presented under Topic 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company's adoption of Topic 326 did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

Recent Accounting Developments - Guidance Not Yet Adopted

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 No. 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,. Early adoption is permitted, including adoption in an interim period. The Company is currently in the process of assessing the impact of this guidance on the consolidated financial statements.

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Environmental Matters

3 Months Ended

Mar. 31, 2020

Environmental Matters Disclosure [Abstract]

Environmental Matters

Environmental Matters

NRG is subject to a wide range of environmental laws in the development, construction, ownership and operation of projects. These laws generally require that governmental permits and approvals be obtained before construction and 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 requirements regarding GHGs, 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. In general, future laws are expected to require the addition of emissions controls or other environmental controls or to impose certain 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 state environmental laws generally have become more stringent over time, although this trend could slow or pause in the near term with respect to federal laws under the current U.S. presidential administration.

Air

On July 8, 2019, EPA promulgated the ACE rule, which rescinded the CPP, which had sought to broadly regulate CO₂ emissions from the power sector. The ACE rule requires states that have coal-fired EGUs to develop plans to seek heat rate improvements from coal-fired EGUs. Numerous parties have challenged the ACE rule in the D.C. Circuit and numerous parties have filed petitions for reconsideration with the EPA.

Water

Effluent Limitations Guidelines — In November 2015, the EPA revised the Effluent Limitations Guidelines for Steam Electric Generating Facilities, which would have imposed more stringent requirements (as individual permits were renewed) for wastewater streams from FGD, fly ash, bottom ash, and flue gas mercury control. On September 18, 2017, the EPA promulgated a final rule that, among other things, postpones 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. On April 12, 2019, the United States Court of Appeals for the Fifth Circuit addressed challenges to the rule brought by several environmental groups related to legacy wastewaters and coal ash leachate and remanded portions of the rule to the EPA. On November 22, 2019, the EPA proposed amending the 2015 ELG rule by: (x) decreasing the stringency of the selenium limit (but increasing the stringency of the nitrate and mercury limits) for FGD wastewater; (y) relaxing the zero-discharge requirement for bottom ash transport water; and (z) changing several deadlines. The Company has eliminated its estimate of the environmental capital expenditures that would have been required to comply with permits incorporation the revised guidelines. The Company will revisit these estimates after the rule is revised.

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 2017, the EPA agreed to reconsider the rule. On July 30, 2018, the EPA promulgated a rule that amends 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. On August 14, 2019, the EPA proposed targeted changes to the April 2015 Rule including changes to address the August 2018 D.C. Circuit decision. On December 2, 2019, the EPA released for comment "Closure Part A Proposal" to revise the CCR Rule to address the D.C. Circuit's 2018 decision regarding the adequacy of clay-lined impoundments, obligations to close all unlined impoundments and related deadlines. On February 20, 2020, the EPA proposed the framework for developing and implementing a federal permit program for states that are not approved to administer the CCR rule. On March 3, 2020, the EPA proposed for comment "A Holistic Approach to Closure Part B," which proposes procedures for obtaining approval to operate existing impoundments with alternative liners. We anticipate that the EPA will promulgate new regulations to address these and other issues as it reconsiders other aspects of the existing rule. The Company will determine estimates of the cost of compliance after the rule is revised.

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Income Taxes

3 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

Effective Income Tax Rate

The income tax provision consisted of the following:

	Three months ended March 31,
(In millions, except rates)	2020			2019
Income from continuing operations before income taxes	$	144		$	98
Income tax expense from continuing operations	23			4
Effective income tax rate	16.0		%	4.1		%

For the three months ended March 31, 2020, the effective tax rate was lower than the statutory rate of 21%, primarily due to an excess tax benefit related to share-based compensation, partially offset by state tax expense. For the three months ended March 31, 2019, the effective tax rate was lower than the statutory rate of 21%, primarily due to the tax benefit for the change in valuation allowance, partially offset by state tax expense.

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. NRG does not expect the CARES Act provisions to have a material impact on the tax positions of the Company.

Uncertain Tax Benefits

As of March 31, 2020, NRG had a non-current tax liability of $16 million for uncertain tax benefits from positions taken on various state income tax returns and accrued interest. For the three months ended March 31, 2020, NRG accrued an immaterial amount of interest relating to the uncertain tax benefits. As of March 31, 2020, NRG had cumulative interest and penalties related to these uncertain tax benefits of $2 million. The Company recognizes interest and penalties related to uncertain tax benefits in income tax expense.

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 and Canada. The Company is no longer subject to U.S. federal income tax examinations for years prior to 2016. With few exceptions, state and local income tax examinations are no longer open for years prior to 2011.

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Long-term Debt - Recourse Debt (Details) - USD ($)	May 07, 2020	Mar. 31, 2020	Mar. 11, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt amount		$ 6,592,000,000		$ 6,042,000,000
Line of Credit | Revolver Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Debt amount		635,000,000		83,000,000
Line of Credit | Revolver Facility | Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Debt amount	$ 250,000,000
Recourse Debt
Debt Instrument [Line Items]
Debt amount		6,560,000,000		6,008,000,000
Recourse Debt | Tax-exempt bonds
Debt Instrument [Line Items]
Debt amount		$ 466,000,000		$ 466,000,000
Debt issuance amount			$ 59,000,000
Recourse Debt | Dunkirk Power LLC Tax Exempt Bonds Due 2042
Debt Instrument [Line Items]
Interest rate, stated percentage		5.875%

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Accounting for Derivative Instruments and Hedging Activities - Offsetting of derivatives by counterparty master agreement level and collateral received (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid
Cash Collateral (Held) / Posted	$ (51)	$ (32)
Derivative liabilities	(1,202)	(1,103)
Cash Collateral Posted	200	190
Commodity contracts
Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid
Derivative assets	1,318	1,170
Derivative Instruments	(1,010)	(909)
Cash Collateral (Held) / Posted	(17)	(7)
Net Amount	291	254
Derivative liabilities	(1,202)	(1,103)
Derivative Instruments	1,010	909
Cash Collateral Posted	94	73
Net Amount	(98)	(121)
Gross Amounts of Recognized Assets / Liabilities	116	67
Derivative Instruments	0	0
Cash Collateral (Held) / Posted	77	66
Net Amount	$ 193	$ 133

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Nuclear Decommissioning Trust Fund - Summary of aggregate fair values and realized gains and losses (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Nuclear decommissioning trust fund
Fair Value	$ 702	$ 794
Unrealized Gains	248	338
Unrealized Losses	6	1
Cash and cash equivalents
Nuclear decommissioning trust fund
Fair Value	21	17
Unrealized Gains	0	0
Unrealized Losses	0	0
U.S. government and federal agency obligations
Nuclear decommissioning trust fund
Fair Value	57	68
Unrealized Gains	10	4
Unrealized Losses	$ 0	$ 0
Weighted-average Maturities (In years)	14 years	11 years
Federal agency mortgage-backed securities
Nuclear decommissioning trust fund
Fair Value	$ 93	$ 100
Unrealized Gains	4	3
Unrealized Losses	$ 0	$ 0
Weighted-average Maturities (In years)	24 years	24 years
Commercial mortgage-backed securities
Nuclear decommissioning trust fund
Fair Value	$ 33	$ 29
Unrealized Gains	1	1
Unrealized Losses	$ 1	$ 1
Weighted-average Maturities (In years)	26 years	24 years
Corporate debt securities
Nuclear decommissioning trust fund
Fair Value	$ 125	$ 109
Unrealized Gains	5	6
Unrealized Losses	$ 4	$ 0
Weighted-average Maturities (In years)	12 years	11 years
Equity securities
Nuclear decommissioning trust fund
Fair Value	$ 368	$ 466
Unrealized Gains	228	324
Unrealized Losses	1	0
Foreign government fixed income securities
Nuclear decommissioning trust fund
Fair Value	5	5
Unrealized Gains	0	0
Unrealized Losses	$ 0	$ 0
Weighted-average Maturities (In years)	10 years	10 years

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Nature of Business and Basis of Presentation - General (Details) MW in Thousands	Mar. 31, 2020 MW
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Generation capacity (in MW)	23

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Summary of Significant Accounting Policies - Pension Plan Contributions (Details) $ in Millions	Mar. 31, 2020 USD ($)
Accounting Policies [Abstract]
Pension plan employer contributions deferred until 2021	$ 47

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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions		Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2018		$ (1,234)	$ 4	$ 8,510	$ (6,022)	$ (3,632)	$ (94)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		482			482
Other comprehensive (loss) income		(2)					(2)
Share repurchases		(749)		(10)		(739)
Equity-based awards activity, net		(32)		(32)
Issuance of common stock		5		5
Common stock dividends	[1]	(8)			(8)
Ending balance at Mar. 31, 2019		(1,538)	4	8,473	(5,548)	(4,371)	(96)
Beginning balance at Dec. 31, 2019		1,658	4	8,501	(1,616)	(5,039)	(192)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		121			121
Other comprehensive (loss) income		(15)					(15)
Repurchase of partners' equity interest in VIE		18		18
Share repurchases		(150)				(150)
Equity-based awards activity, net		(21)		(21)
Common stock dividends		(75)			(75)
Ending balance at Mar. 31, 2020		$ 1,536	$ 4	$ 8,498	$ (1,570)	$ (5,189)	$ (207)

[1] Dividends per common share was $0.30 for the quarter ended March 31, 2020 and $0.03 for the quarter ended March 31, 2019

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Fair Value of Financial Instruments - Assets and Liabilities Measured and Recorded at Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	$ 13	$ 20
Other trust fund investments:
U.S. government and federal agency obligations	1	1
Measured using net asset value practical expedient:
Total assets	2,040	1,993
Derivative liabilities:
Derivative liabilities	1,202	1,103
Commodity contracts
Derivative assets:
Derivative assets	1,318	1,170
Derivative liabilities:
Derivative liabilities	1,202	1,103
Cash and cash equivalents
Nuclear trust fund investments:
Nuclear trust fund investments	21	17
U.S. government and federal agency obligations
Nuclear trust fund investments:
Nuclear trust fund investments	57	68
Federal agency mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	93	100
Commercial mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	33	29
Corporate debt securities
Nuclear trust fund investments:
Nuclear trust fund investments	125	109
Equity securities
Nuclear trust fund investments:
Nuclear trust fund investments	308	388
Measured using net asset value practical expedient:
Equity contracts	6	8
Foreign government fixed income securities
Nuclear trust fund investments:
Nuclear trust fund investments	5	5
Equity securities — nuclear trust fund investments
Measured using net asset value practical expedient:
Equity contracts	60	78
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	0	0
Other trust fund investments:
U.S. government and federal agency obligations	1	1
Measured using net asset value practical expedient:
Total assets	497	558
Derivative liabilities:
Derivative liabilities	193	143
Level 1 | Commodity contracts
Derivative assets:
Derivative assets	111	84
Derivative liabilities:
Derivative liabilities	193	143
Level 1 | Cash and cash equivalents
Nuclear trust fund investments:
Nuclear trust fund investments	21	17
Level 1 | U.S. government and federal agency obligations
Nuclear trust fund investments:
Nuclear trust fund investments	56	68
Level 1 | Federal agency mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 1 | Commercial mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 1 | Corporate debt securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 1 | Equity securities
Nuclear trust fund investments:
Nuclear trust fund investments	308	388
Level 1 | Foreign government fixed income securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	13	20
Other trust fund investments:
U.S. government and federal agency obligations	0	0
Measured using net asset value practical expedient:
Total assets	1,285	1,156
Derivative liabilities:
Derivative liabilities	890	805
Level 2 | Commodity contracts
Derivative assets:
Derivative assets	1,015	893
Derivative liabilities:
Derivative liabilities	890	805
Level 2 | Cash and cash equivalents
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 2 | U.S. government and federal agency obligations
Nuclear trust fund investments:
Nuclear trust fund investments	1	0
Level 2 | Federal agency mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	93	100
Level 2 | Commercial mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	33	29
Level 2 | Corporate debt securities
Nuclear trust fund investments:
Nuclear trust fund investments	125	109
Level 2 | Equity securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 2 | Foreign government fixed income securities
Nuclear trust fund investments:
Nuclear trust fund investments	5	5
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	0	0
Other trust fund investments:
U.S. government and federal agency obligations	0	0
Measured using net asset value practical expedient:
Total assets	192	193
Derivative liabilities:
Derivative liabilities	119	155
Level 3 | Commodity contracts
Derivative assets:
Derivative assets	192	193
Derivative liabilities:
Derivative liabilities	119	155
Level 3 | Cash and cash equivalents
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | U.S. government and federal agency obligations
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Federal agency mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Commercial mortgage-backed securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Corporate debt securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Equity securities
Nuclear trust fund investments:
Nuclear trust fund investments	0	0
Level 3 | Foreign government fixed income securities
Nuclear trust fund investments:
Nuclear trust fund investments	$ 0	$ 0

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 121	$ 482
Other Comprehensive Loss
Foreign currency translation adjustments	(15)	1
Defined benefit plans	0	(3)
Other comprehensive income/(loss)	(15)	(2)
Comprehensive Income	$ 106	$ 480

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Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Schedule Of Contract Assets And Liabilities [Line Items]
Deferred customer acquisition costs	$ 133		$ 133
Total accounts receivable, net	915		1,025
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)	328		402
Deferred revenues	87		82
Deferred revenue from contract with customers	27		24
Revenue recognized	13	$ 13
Accounts receivable, net - Contracts with customers
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	885		1,002
Accounts receivable, net - Derivative instruments
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	26		18
Accounts receivable, net - Affiliate
Schedule Of Contract Assets And Liabilities [Line Items]
Total accounts receivable, net	$ 4		$ 5

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Fair Value of Financial Instruments - Counterparty Credit Risk (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) counterparty
Concentration of Credit Risk
Counterparty credit exposure to a portion of the Company's counterparties	$ 346
Collateral held (cash and letters of credit) against counterparty credit exposure to a portion of the Company's counterparties	54
Net counterparty credit exposure to a portion of the Company's counterparties	$ 293
Company's exposure before collateral is expected to roll off by the end of 2019 (as a percent)	54.00%
Net exposure (as a percent)	100.00%
Wholesale counterparty with net exposure | counterparty	47,000,000
Counterparty credit risk exposure to certain counterparties, threshold (as a percent)	10.00%
Estimated counterparty credit risk exposure to certain counterparties	$ 689
Period of estimated counterparty credit risk exposure, years	5 years
Investment grade
Concentration of Credit Risk
Net exposure (as a percent)	53.00%
Non-investment grade/non-rated
Concentration of Credit Risk
Net exposure (as a percent)	47.00%
Utilities, energy merchants, marketers and other
Concentration of Credit Risk
Net exposure (as a percent)	81.00%
Financial institutions
Concentration of Credit Risk
Net exposure (as a percent)	19.00%

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Condensed Consolidating Financial Information - CONSOLIDATING BALANCE SHEETS (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 759	$ 345
Funds deposited by counterparties	51	32
Restricted cash	8	8
Accounts receivable, net	915	1,025
Inventory	372	383
Derivative instruments	884	860
Cash collateral paid in support of energy risk management activities	200	190
Prepayments and other current assets	290	245
Total current assets	3,479	3,088
Property, plant and equipment, net	2,573	2,593
Other Assets
Investment in subsidiaries	0	0
Equity investments in affiliates	350	388
Operating lease right-of-use assets, net	446	464
Goodwill	579	579
Intangible assets, net	769	789
Nuclear decommissioning trust fund	702	794
Derivative instruments	434	310
Deferred income taxes	3,265	3,286
Other non-current assets	225	240
Total other assets	6,770	6,850
Total Assets	12,822	12,531
Current Liabilities
Current portion of long-term debt	640	88
Current portion of operating lease liabilities	71	73
Accounts payable	708	722
Derivative instruments	832	781
Cash collateral received in support of energy risk management activities	51	32
Accrued expenses and other current liabilities	550	663
Total current liabilities	2,852	2,359
Other Liabilities
Long-term debt	5,807	5,803
Non-current operating lease liabilities	473	483
Nuclear decommissioning reserve	303	298
Nuclear decommissioning trust liability	390	487
Derivative instruments	370	322
Deferred income taxes	15	17
Other non-current liabilities	1,076	1,084
Total other liabilities	8,434	8,494
Total Liabilities	11,286	10,853
Redeemable noncontrolling interest in subsidiaries	0	20
Total Stockholders' Equity	1,536	1,658	$ (1,538)	$ (1,234)
Total Liabilities and Stockholders' Equity	12,822	12,531
Eliminations
Current Assets
Cash and cash equivalents	0	0
Funds deposited by counterparties	0	0
Restricted cash	0	0
Accounts receivable, net	(1,439)	(740)
Inventory	0	0
Derivative instruments	(33)	(41)
Cash collateral paid in support of energy risk management activities	0	0
Prepayments and other current assets	0	0
Total current assets	(1,472)	(781)
Property, plant and equipment, net	0	0
Other Assets
Investment in subsidiaries	(5,280)	(5,495)
Equity investments in affiliates	0	0
Operating lease right-of-use assets, net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Nuclear decommissioning trust fund	0	0
Derivative instruments	(13)	(13)
Deferred income taxes	0	0
Other non-current assets	0	0
Total other assets	(5,293)	(5,508)
Total Assets	(6,765)	(6,289)
Current Liabilities
Current portion of long-term debt	0	0
Current portion of operating lease liabilities	0	0
Accounts payable	(1,439)	(740)
Derivative instruments	(33)	(41)
Cash collateral received in support of energy risk management activities	0	0
Accrued expenses and other current liabilities	0	0
Total current liabilities	(1,472)	(781)
Other Liabilities
Long-term debt	0	0
Non-current operating lease liabilities	0	0
Nuclear decommissioning reserve	0	0
Nuclear decommissioning trust liability	0	0
Derivative instruments	(13)	(13)
Deferred income taxes	0	0
Other non-current liabilities	0	0
Total other liabilities	(13)	(13)
Total Liabilities	(1,485)	(794)
Redeemable noncontrolling interest in subsidiaries		0
Total Stockholders' Equity	(5,280)	(5,495)
Total Liabilities and Stockholders' Equity	(6,765)	(6,289)
Guarantor Subsidiaries
Current Assets
Cash and cash equivalents	0	0
Funds deposited by counterparties	51	32
Restricted cash	7	5
Accounts receivable, net	1,684	1,293
Inventory	287	272
Derivative instruments	882	856
Cash collateral paid in support of energy risk management activities	197	182
Prepayments and other current assets	222	170
Total current assets	3,330	2,810
Property, plant and equipment, net	1,372	1,483
Other Assets
Investment in subsidiaries	158	710
Equity investments in affiliates	0	0
Operating lease right-of-use assets, net	79	81
Goodwill	400	359
Intangible assets, net	729	375
Nuclear decommissioning trust fund	702	794
Derivative instruments	434	308
Deferred income taxes	435	421
Other non-current assets	163	145
Total other assets	3,100	3,193
Total Assets	7,802	7,486
Current Liabilities
Current portion of long-term debt	1	0
Current portion of operating lease liabilities	20	20
Accounts payable	1,016	918
Derivative instruments	852	797
Cash collateral received in support of energy risk management activities	51	32
Accrued expenses and other current liabilities	259	280
Total current liabilities	2,199	2,047
Other Liabilities
Long-term debt	248	302
Non-current operating lease liabilities	64	64
Nuclear decommissioning reserve	303	298
Nuclear decommissioning trust liability	390	487
Derivative instruments	382	334
Deferred income taxes	0	0
Other non-current liabilities	438	399
Total other liabilities	1,825	1,884
Total Liabilities	4,024	3,931
Redeemable noncontrolling interest in subsidiaries		0
Total Stockholders' Equity	3,778	3,555
Total Liabilities and Stockholders' Equity	7,802	7,486
Non-Guarantor Subsidiaries
Current Assets
Cash and cash equivalents	19	20
Funds deposited by counterparties	0	0
Restricted cash	0	1
Accounts receivable, net	137	239
Inventory	85	111
Derivative instruments	35	45
Cash collateral paid in support of energy risk management activities	3	8
Prepayments and other current assets	8	8
Total current assets	287	432
Property, plant and equipment, net	1,046	952
Other Assets
Investment in subsidiaries	0	0
Equity investments in affiliates	350	388
Operating lease right-of-use assets, net	251	261
Goodwill	179	220
Intangible assets, net	40	414
Nuclear decommissioning trust fund	0	0
Derivative instruments	13	15
Deferred income taxes	(32)	(19)
Other non-current assets	27	30
Total other assets	828	1,309
Total Assets	2,161	2,693
Current Liabilities
Current portion of long-term debt	4	5
Current portion of operating lease liabilities	31	32
Accounts payable	125	141
Derivative instruments	13	25
Cash collateral received in support of energy risk management activities	0	0
Accrued expenses and other current liabilities	31	44
Total current liabilities	204	247
Other Liabilities
Long-term debt	24	28
Non-current operating lease liabilities	295	301
Nuclear decommissioning reserve	0	0
Nuclear decommissioning trust liability	0	0
Derivative instruments	1	1
Deferred income taxes	15	17
Other non-current liabilities	120	153
Total other liabilities	455	500
Total Liabilities	659	747
Redeemable noncontrolling interest in subsidiaries		20
Total Stockholders' Equity	1,502	1,926
Total Liabilities and Stockholders' Equity	2,161	2,693
NRG Energy, Inc. (Note Issuer)
Current Assets
Cash and cash equivalents	740	325
Funds deposited by counterparties	0	0
Restricted cash	1	2
Accounts receivable, net	533	233
Inventory	0	0
Derivative instruments	0	0
Cash collateral paid in support of energy risk management activities	0	0
Prepayments and other current assets	60	67
Total current assets	1,334	627
Property, plant and equipment, net	155	158
Other Assets
Investment in subsidiaries	5,122	4,785
Equity investments in affiliates	0	0
Operating lease right-of-use assets, net	116	122
Goodwill	0	0
Intangible assets, net	0	0
Nuclear decommissioning trust fund	0	0
Derivative instruments	0	0
Deferred income taxes	2,862	2,884
Other non-current assets	35	65
Total other assets	8,135	7,856
Total Assets	9,624	8,641
Current Liabilities
Current portion of long-term debt	635	83
Current portion of operating lease liabilities	20	21
Accounts payable	1,006	403
Derivative instruments	0	0
Cash collateral received in support of energy risk management activities	0	0
Accrued expenses and other current liabilities	260	339
Total current liabilities	1,921	846
Other Liabilities
Long-term debt	5,535	5,473
Non-current operating lease liabilities	114	118
Nuclear decommissioning reserve	0	0
Nuclear decommissioning trust liability	0	0
Derivative instruments	0	0
Deferred income taxes	0	0
Other non-current liabilities	518	532
Total other liabilities	6,167	6,123
Total Liabilities	8,088	6,969
Redeemable noncontrolling interest in subsidiaries		0
Total Stockholders' Equity	1,536	1,672
Total Liabilities and Stockholders' Equity	$ 9,624	$ 8,641

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Changes in Capital Structure - Schedule of Repurchases Under Share Repurchase Programs (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	4 Months Ended
	May 07, 2020	Mar. 31, 2020	May 07, 2020
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)		4,461,438
Subsequent Event
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)	1,601,345
Capital Allocation Plan, Open Market Repurchases
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)		4,461,438
Amounts paid for shares purchased		$ 150
Equivalent Shares In Lieu Of Tax Withholding on Equity Compensation Issuances
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)		710,063
Average price paid per share (in usd per share)		$ 38.24
Amounts paid for shares purchased		$ 27
Capital Allocation Plan
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)		5,171,501
Average price paid per share (in usd per share)		$ 34.20
Amounts paid for shares purchased		$ 177
Capital Allocation Plan | Subsequent Event
Schedule of Capitalization, Equity [Line Items]
Total number of shares purchased (in shares)	1,601,345		6,772,846
Average price paid per share (in usd per share)			$ 33.05
Amounts paid for shares purchased	$ 47		$ 224

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Effective Tax Rate
Income from continuing operations before income taxes	$ 144	$ 98
Income tax expense from continuing operations	$ 23	$ 4
Effective income tax rate	16.00%	4.10%
Uncertain Tax Benefits
Non-current tax liability for uncertain tax benefits	$ 16
Uncertain tax benefits, penalties and interest accrued	$ 2

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Impairments	3 Months Ended
	Mar. 31, 2020
Property, Plant and Equipment [Abstract]
Impairments	ImpairmentsPetra Nova Parish Holdings — During the first quarter of 2020, due to the decline in oil prices, NRG determined that the carrying amount of the Company’s equity method investment exceeded the fair value of the investment and that the decline is considered to be other-than-temporary. In determining the fair value, the Company utilized an income approach to estimate future project cash flows. The Company recorded an impairment loss of $18 million in the Texas segment,

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Discontinued Operations and Dispositions

3 Months Ended

Mar. 31, 2020

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations and Dispositions

Discontinued Operations and Dispositions

Discontinued Operations

Sale of South Central Portfolio

On February 4, 2019, the Company completed the sale of the 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 of December 31, 2018, as the disposition represented a strategic shift in the business in which NRG operates and the criteria for held-for-sale were met. As such, all prior period results for the operations of the South Central Portfolio, except for the Cottonwood facility as discussed below, were reclassified as discontinued operations at

December 31, 2018. In connection with the transaction, NRG also entered into a transition services agreement to provide certain corporate services to the divested business.

The South Central Portfolio includes the 1,153 MW Cottonwood natural gas generating facility. Upon the closing of the sale of the South Central Portfolio, NRG entered into an 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 the South Central Portfolio discontinued operations were as follows: 

	Three months ended
(In millions)		March 31, 2019
Operating revenues		$	31
Operating costs and expenses		(23)
Gain from operations of discontinued components		8
Gain on disposal of discontinued operations, net of tax		27
Gain from discontinued operations, including disposal, net of tax		$	35

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 prior period results for Carlsbad were reclassified as discontinued operations. The transaction closed on February 27, 2019. Carlsbad continues to have a ground lease and easement agreement with NRG with an initial term ending in 2039 and two ten year extensions. As a result of the transaction, additional commitments related to the project totaled approximately $23 million as of March 31, 2020 and December 31, 2019.

Summarized results of Carlsbad discontinued operations were as follows: 

	Three months ended
(In millions)		March 31, 2019
Operating revenues		$	19
Operating costs and expenses		(9)
Other expenses		(5)
Gain from operations of discontinued components		5
Gain on disposal of discontinued operations, net of tax		348
Gain from discontinued operations, including disposal, net of tax		$	353

Dispositions

The Company completed other asset sales for cash proceeds of $7 million and $10 million during the three months ended March 31, 2020 and 2019, respectively.

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Schedule of segment reporting information, by segment

	Three months ended March 31, 2020
(In millions)	Texas		East		West/Other		Corporate		Eliminations		Total
Operating revenues	$	1,358	$	539	$	125	$	—	$	(3)	$	2,019
Depreciation and amortization	59		33		8		9		—		109
Reorganization costs	1		—		—		2		—		3
Gain on sale of assets	—		—		1		5		—		6
Equity in losses of unconsolidated affiliates	—		—		(11)		—		—		(11)
Income/(loss) from continuing operations before income taxes	162		24		41		(82)		(1)		144
Net income/(loss)	$	162	$	24	$	41	$	(105)	$	(1)	$	121

	Three months ended March 31, 2019
(In millions)	Texas		East		West/Other		Corporate		Eliminations		Total
Operating revenues	$	1,466	$	609	$	93	$	(1)	$	(2)	$	2,165
Depreciation and amortization	40		26		11		8		—		85
Reorganization costs	1		—		—		12		—		13
Gain on sale of assets	—		1		—		—		—		1
Equity in losses of unconsolidated affiliates	(3)		—		(18)		—		—		(21)
Income/(loss) from continuing operations before income taxes	150		99		(23)		(127)		(1)		98
Income/(loss) from continuing operations	150		99		(23)		(131)		(1)		94
Income from discontinued operations, net of tax	—		—		—		388		—		388
Net income/(loss)	$	150	$	99	$	(23)	$	257	$	(1)	$	482

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Discontinued Operations and Dispositions (Tables)

3 Months Ended

Mar. 31, 2020

Discontinued Operations and Disposal Groups [Abstract]

Summary of Results of Discontinued Operations

Summarized results of the South Central Portfolio discontinued operations were as follows: 

	Three months ended
(In millions)		March 31, 2019
Operating revenues		$	31
Operating costs and expenses		(23)
Gain from operations of discontinued components		8
Gain on disposal of discontinued operations, net of tax		27
Gain from discontinued operations, including disposal, net of tax		$	35

Summarized results of Carlsbad discontinued operations were as follows: 

	Three months ended
(In millions)		March 31, 2019
Operating revenues		$	19
Operating costs and expenses		(9)
Other expenses		(5)
Gain from operations of discontinued components		5
Gain on disposal of discontinued operations, net of tax		348
Gain from discontinued operations, including disposal, net of tax		$	353

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Long-term Debt (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Long-term debt

Long-term debt consisted of the following:

(In millions, except rates)	March 31, 2020		December 31, 2019		Interest rate %
Recourse debt:
Senior Notes, due 2026	$	1,000	$	1,000	7.250
Senior Notes, due 2027	1,230		1,230		6.625
Senior Notes, due 2028	821		821		5.750
Senior Notes, due 2029	733		733		5.250
Convertible Senior Notes, due 2048	575		575		2.750
Senior Secured First Lien Notes, due 2024	600		600		3.750
Senior Secured First Lien Notes, due 2029	500		500		4.450
Revolving Credit Facility(a)	635		83		L+ 1.750
Tax-exempt bonds	466		466		1.300 - 6.000
Subtotal recourse debt	6,560		6,008
Non-recourse debt:
Other	32		34		various
Subtotal all non-recourse debt	32		34
Subtotal long-term debt (including current maturities)	6,592		6,042
Less current maturities	(640)		(88)
Less debt issuance costs	(63)		(65)
Discounts	(82)		(86)
Total long-term debt	$	5,807	$	5,803

(a) As of March 31, 2020, the Company had drawn under its Revolving Credit Facility using a mix of 1-week LIBOR and 1-month LIBOR + 1.750

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Commitments

First Lien Structure

NRG has granted first liens to certain counterparties on a substantial portion of property and assets owned by NRG and the guarantors of its senior debt. 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 counterparties would have a claim under the first lien program. As of March 31, 2020, all hedges under the first lien were in-the-money for NRG on a counterparty aggregate basis.

Jewett Mine Lignite Contract

The Company's Limestone facility historically burned lignite obtained from the Jewett mine, which was operated by Texas Westmoreland Coal Co., or TWCC. On or about March 15, 2019, the Jewett mine and related lignite supply agreement with NRG were acquired by Westmoreland Mining LLC pursuant to a plan of reorganization confirmed by the U.S. Bankruptcy Court for the Southern District of Texas. Active mining under the lignite supply agreement ceased as of December 31, 2016; however, under the terms of the lignite supply agreement, the mine operator remains responsible for undertaking reclamation activities and NRG is responsible for 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. Additionally, the lignite supply agreement obligates NRG to provide additional performance assurance if required by the Railroad Commission of Texas.

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 accruals 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 accrual for the applicable legal matters, including regulatory and environmental matters as further discussed in Note 17, Regulatory Matters, and Note 18, 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 accruals 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.

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 claim 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 seek damages for the alleged improper charges and a declaration as to which charges are proper under the contract. In February 2020, the court dismissed this lawsuit without prejudice for lack of subject matter jurisdiction. A motion to reconsider the judgement is pending with the District Court. This matter has been appealed to the United States Court of Appeals for the Fifth Circuit. 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.

Sierra club et al. v. Midwest Generation LLC — 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 four 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.

XOOM Energy Litigation — XOOM is a defendant in two purported class action lawsuits pending in Maryland and New York. The plaintiffs generally claim that they did not receive the savings they were promised in their natural gas and electricity bills. The parties in the Maryland lawsuit are briefing summary judgment and class certification. In the New York case, XOOM filed a motion to dismiss, which the court granted on September 21, 2018, later entering judgment in XOOM's favor on September 24, 2018. The plaintiffs in the New York case appealed to the U.S. Court of Appeals for the Second Circuit. On July 26, 2019, the Second Circuit reversed the judgment of the district court and remanded to the district court with instructions that plaintiffs be permitted to proceed on their proposed amended complaint. This matter was known and accrued for at the time of the acquisition.

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Earnings Per Share

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Basic income per common share is computed by dividing net income 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 per share is computed in a manner consistent with that of basic income per share while giving effect to all potentially dilutive common shares that were outstanding during the period. The outstanding non-qualified stock options, non-vested restricted stock units, market stock units, and relative performance stock units are not considered outstanding for purposes of computing basic income per share. However, these instruments are included in the denominator for purposes of computing diluted income per share under the treasury stock method. The 2048 Convertible Senior Notes are convertible, under certain circumstances, into the Company’s common stock, cash or combination thereof (at NRG's option). There is no dilutive effect for the 2048 Convertible Senior Notes due to the Company’s expectation to settle the liability in cash.

The reconciliation of NRG's basic and diluted income per share is shown in the following table:

	Three months ended March 31,
(In millions, except per share data)	2020		2019
Basic income per share:
Net income available to common shareholders	$	121	$	482
Weighted average number of common shares outstanding - basic	248		278
Income per weighted average common share — basic	$	0.49	$	1.73
Diluted income per share:
Net income available to common shareholders	$	121	$	482
Weighted average number of common shares outstanding - basic	248		278
Incremental shares attributable to the issuance of equity compensation (treasury stock method)	1		2
Weighted average number of common shares outstanding - dilutive	249		280
Income per weighted average common share — diluted	$	0.49	$	1.72

As of March 31, 2020 and 2019 outstanding equity instruments that are anti-dilutive and were not included in the computation of the Company’s diluted income per share were not significant.

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Segment Reporting

Segments

As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources.

The Company's businesses are segregated as follows:

•Texas, which includes all activity related to customer, plant and market operations in Texas;

•East, which includes the remaining activity related to customer operations and all activity related to plant and market operations in the East;

•West/Other, which includes the following assets and activities: (i) all activity related to plant and market operations in the West, (ii) activity related to the Cottonwood power plant that was sold to Cleco on February 4, 2019 and is being leased back until 2025, (iii) the remaining renewables activity, including the Company’s equity method investments in Ivanpah Master Holdings, LLC and Agua Caliente, the remaining Home Solar assets and the NFL stadium solar generating assets, and (iv) activity related to the Company’s equity method investment for the Gladstone power plant in Australia; and

•Corporate activities.

All affected disclosures have been recast to reflect these changes for all periods presented. For further discussion of segment reporting, refer to Note 13, Segment Reporting.

on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020, as further described in Note 1, Nature of Business. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources The financial information for the three months ended March 31, 2019 was recast to reflect the current segment structure.In February 2019, as described in Note 4, Discontinued Operations and Dispositions, the Company completed the sales of the South Central Portfolio and Carlsbad. The financial information for the three months ended March 31, 2019 presented below reflects the presentation of these entities as discontinued operations within the corporate segment.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 allocation of capital, as well as net income/(loss).

Use of Estimates

Use of EstimatesThe preparation of financial statements in conformity with GAAP 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.

Reclassifications

Reclassifications

Certain prior year amounts have been reclassified for comparative purposes.

Credit Losses

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.

Restricted Cash

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 accounts that are not contractually restricted but, based on the Company's intention, are not available 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. 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.

Recent Accounting Developments

Recent Accounting Developments - Guidance Adopted in 2020

ASU 2018-17 — In October 2018, the FASB issued ASU No. 2018-17, Consolidations (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities, or ASU No. 2018-17, in response to stakeholders’ observations that Topic 810, Consolidations, could be improved thereby improving general purpose financial reporting. Specifically, ASU No. 2018-17 requires application of the variable interest entity (VIE) guidance to private companies under common control and consideration of indirect interest held through related parties under common control for determining whether fees paid to decision makers and service providers are variable interests. The amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. All entities are required to apply the amendments retrospectively. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2018-15 — In August 2018, the FASB issued ASU No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in Cloud Computing Arrangement That Is a Service Contract, or ASU No. 2018-15. The amendments in ASU No. 2018-15 align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing costs incurred to develop or obtain internal-use software (and hosting arrangement that include an internal-use software license). The amendment also requires the customer to amortize the capitalized implementation costs of a hosting arrangement that is a service contract over the term of the hosting arrangement. The Company adopted the amendments effective January 1, 2020 using the prospective approach. The adoption did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2018-13 — In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirement for Fair value Measurement), or ASU No. 2018-13. The amendments in ASU No. 2018-13 eliminate such disclosures as the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and add new disclosure requirements for Level 3 measurements. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Certain disclosures in ASU No. 2018-13 are required to be applied on a retrospective basis and others on a prospective basis. The Company adopted the amendments effective January 1, 2020. As the amendments contemplates changes in disclosures only, it did not have an impact on the Company's results of operations, cash flows, or statement of financial position.

ASU 2016-13 — In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Statements, or ASU No. 2016-13, which was further amended through various updates issued by the FASB thereafter. The guidance in ASU No. 2016-13 provides a new model for recognizing credit losses on financial assets carried at amortized cost using an estimate of expected credit losses, instead of the "incurred loss" methodology previously required for recognizing credit losses that delayed recognition until it was probable that a loss was incurred. The estimate of expected credit losses is to be based on consideration of past events, current conditions and reasonable and supportable forecasts of future conditions. The Company adopted the standard and its subsequent corresponding updates effective January 1, 2020 using the modified retrospective approach. Results for the reporting periods after January 1, 2020 are presented under Topic 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company's adoption of Topic 326 did not have a material impact on the Company's results of operations, cash flows, or statement of financial position.

Recent Accounting Developments - Guidance Not Yet Adopted

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 No. 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,. Early adoption is permitted, including adoption in an interim period. The Company is currently in the process of assessing the impact of this guidance on the consolidated financial statements.

Nuclear Decommissioning

NRG's Nuclear Decommissioning Trust Fund assets, which are for the decommissioning of its 44% interest in STP, are comprised of securities classified as available-for-sale and recorded at fair value based on actively quoted market prices. NRG accounts for the Nuclear Decommissioning Trust Fund in accordance with ASC 980, Regulated Operations, 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 OCI, consistent with regulatory treatment.

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Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 1,925	$ 1,779
Mark-to-market for economic hedging activities	44	20
Operating revenues	2,019	2,165
Lease revenue	5	5
Derivative revenue	55	27
Energy revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	124	290
Derivative revenue	53	320
Capacity revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	149	156
Derivative revenue	24	18
Retail revenue | Mass customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,378	1,313
Retail revenue | Business Solutions customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	283	276
Total retail revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,661	1,589
Derivative revenue
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	(4)	20
Derivative revenue	89	381
Other revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	89	110
Total operating revenue
Disaggregation of Revenue [Line Items]
Operating revenues	2,019	2,165
Other revenue, derivative
Disaggregation of Revenue [Line Items]
Derivative revenue	16	23
Corporate/Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(2)	(3)
Operating revenues	(3)	(2)
Lease revenue	0	0
Corporate/Eliminations | Energy revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(1)	1
Derivative revenue	(1)	0
Corporate/Eliminations | Capacity revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Derivative revenue	0	0
Corporate/Eliminations | Retail revenue | Mass customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(1)	(2)
Corporate/Eliminations | Retail revenue | Business Solutions customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Corporate/Eliminations | Total retail revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(1)	(2)
Corporate/Eliminations | Derivative revenue
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	1	0
Derivative revenue	(1)	0
Corporate/Eliminations | Other revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(2)	(2)
Corporate/Eliminations | Total operating revenue
Disaggregation of Revenue [Line Items]
Operating revenues	(3)	(3)
Corporate/Eliminations | Other revenue, derivative
Disaggregation of Revenue [Line Items]
Derivative revenue	(1)	0
Texas | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,351	1,151
Operating revenues	1,358	1,466
Lease revenue	0	0
Texas | Operating Segments | Energy revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	5	105
Derivative revenue	0	271
Texas | Operating Segments | Capacity revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Derivative revenue	0	0
Texas | Operating Segments | Retail revenue | Mass customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,032	995
Texas | Operating Segments | Retail revenue | Business Solutions customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	260	258
Texas | Operating Segments | Total retail revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,292	1,253
Texas | Operating Segments | Derivative revenue
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	0	31
Derivative revenue	7	315
Texas | Operating Segments | Other revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	61	77
Texas | Operating Segments | Total operating revenue
Disaggregation of Revenue [Line Items]
Operating revenues	1,358	1,466
Texas | Operating Segments | Other revenue, derivative
Disaggregation of Revenue [Line Items]
Derivative revenue	7	13
East | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	500	555
Operating revenues	539	609
Lease revenue	0	0
East | Operating Segments | Energy revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	45	126
Derivative revenue	35	47
East | Operating Segments | Capacity revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	134	144
Derivative revenue	24	18
East | Operating Segments | Retail revenue | Mass customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	347	320
East | Operating Segments | Retail revenue | Business Solutions customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	23	18
East | Operating Segments | Total retail revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	370	338
East | Operating Segments | Derivative revenue
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	(20)	(15)
Derivative revenue	39	54
East | Operating Segments | Other revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	10	16
East | Operating Segments | Total operating revenue
Disaggregation of Revenue [Line Items]
Operating revenues	539	609
East | Operating Segments | Other revenue, derivative
Disaggregation of Revenue [Line Items]
Derivative revenue	0	4
West/Other | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	76	76
Operating revenues	125	93
Lease revenue	5	5
West/Other | Operating Segments | Energy revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	75	58
Derivative revenue	19	2
West/Other | Operating Segments | Capacity revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	15	12
Derivative revenue	0	0
West/Other | Operating Segments | Retail revenue | Mass customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
West/Other | Operating Segments | Retail revenue | Business Solutions customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
West/Other | Operating Segments | Total retail revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
West/Other | Operating Segments | Derivative revenue
Disaggregation of Revenue [Line Items]
Mark-to-market for economic hedging activities	15	4
Derivative revenue	44	12
West/Other | Operating Segments | Other revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	20	19
West/Other | Operating Segments | Total operating revenue
Disaggregation of Revenue [Line Items]
Operating revenues	125	93
West/Other | Operating Segments | Other revenue, derivative
Disaggregation of Revenue [Line Items]
Derivative revenue	$ 10	$ 6

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Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2020

Related Party Transactions [Abstract]

Summary of NRG's Material Related Party Transactions

The following table summarizes NRG's material related party transactions with third party affiliates:

	Three months ended March 31,
(In millions)	2020		2019
Revenues from Related Parties Included in Operating Revenues
Gladstone	$	1	$	1
Ivanpah(a)	13		10
Midway-Sunset	1		1
Total	$	15	$	12

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Summary of Significant Accounting Policies - Activity in the Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at January 1, 2020	$ 43
Provision for credit losses	24	$ 26
Write-offs	(32)
Recoveries collected	4
Balance at March 31, 2020	$ 39

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Impairments (Details) - Petra Nova $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items]
Impairment losses	$ 18
Letters of credit issued	$ 12

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Accounting for Derivative Instruments and Hedging Activities - Net notional volume buy/sell of open derivative transactions (Details) shares in Millions, T in Millions, MWh in Millions, MMBTU in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020 MMBTU MWh T shares	Dec. 31, 2019 MWh MMBTU T shares
Short | Emissions
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, mass (ton) | T	1	3
Short | Natural Gas
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, energy (in MMBtu and MWh) | MMBTU	152	181
Short | Capacity
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, energy (in MMBtu and MWh) | MMBTU	1	1
Long | Renewable Energy Certificates
Volumetric Underlying Derivative Transactions
Derivative, non-monetary notional amount (in shares) | shares	1	1
Long | Coal
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, mass (ton) | T	7	10
Long | Power
Volumetric Underlying Derivative Transactions
Derivative, nonmonetary notional amount, energy (in MMBtu and MWh) | MWh	46	38

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Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Other Balance Sheet Information

The following table presents the accumulated depreciation included in property, plant and equipment, net and accumulated amortization included in intangible assets, net:

(In millions)	March 31, 2020		December 31, 2019
Property, plant and equipment accumulated depreciation	$	1,832	$	1,752
Intangible assets accumulated amortization	1,237		1,262

Activity in Allowance for Credit Losses

The following table represents the activity in the allowance for credit losses for the three months ended March 31, 2020:

	(In millions)
Balance at January 1, 2020	$	43
Provision for credit losses	24
Write-offs	(32)
Recoveries collected	4
Balance at March 31, 2020	$	39

Reconciliation of Cash and Cash Equivalents, Restricted Cash and Funds Deposited by Counterparties

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:

(In millions)	March 31, 2020		December 31, 2019
Cash and cash equivalents	$	759	$	345
Funds deposited by counterparties	51		32
Restricted cash	8		8
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows	$	818	$	385

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Regulatory Matters

3 Months Ended

Mar. 31, 2020

Regulatory Matters Disclosure [Abstract]

Regulatory Matters

Regulatory Matters

Environmental regulatory matters are discussed within Note 18, Environmental Matters, to this Form 10-Q.

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 businesses.

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.

California Station Power — As the result of unfavorable final and non-appealable litigation, the Company accrued a liability associated with consumption of station power at the Company's Encina power plant facility in California after August 30, 2010. The Company has established an appropriate accrual pending potential regulatory action by San Diego Gas & Electric regarding 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 investigating potential violations of MISO rules involving bidding for the Big Cajun 2 facility, as well as other aspects of NRG’s operations in MISO. FERC has the authority to require disgorgement of profits and to impose penalties and NRG retains any liability following the sale of the South Central Portfolio. We expect a preliminary finding from FERC in 2020.

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 connection with offers made into the ISO-NE Forward Capacity Auction in 2016. On April 26, 2019, NRG responded to the preliminary findings. 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. NRG withdrew the bids prior to the 2016 auction in the normal course of our commercial business decision making.

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Segment Reporting

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

As part of perfecting the integrated model, in which the majority of the Company’s generation serves its retail customers, the Company began managing its operations based on the combined results of the retail and wholesale generation businesses with a geographical focus in 2020. As a result, the Company changed its business segments from Retail and Generation to Texas, East and West/Other beginning in the first quarter of 2020, as further described in Note 1, Nature of Business. The Company's updated segment structure reflects how management currently makes financial decisions and allocates resources The financial information for the three months ended March 31, 2019 was recast to reflect the current segment structure.

In February 2019, as described in Note 4, Discontinued Operations and Dispositions, the Company completed the sales of the South Central Portfolio and Carlsbad. The financial information for the three months ended March 31, 2019 presented below reflects the presentation of these entities as discontinued operations within the corporate segment.

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 allocation of capital, as well as net income/(loss).

	Three months ended March 31, 2020
(In millions)	Texas		East		West/Other		Corporate		Eliminations		Total
Operating revenues	$	1,358	$	539	$	125	$	—	$	(3)	$	2,019
Depreciation and amortization	59		33		8		9		—		109
Reorganization costs	1		—		—		2		—		3
Gain on sale of assets	—		—		1		5		—		6
Equity in losses of unconsolidated affiliates	—		—		(11)		—		—		(11)
Income/(loss) from continuing operations before income taxes	162		24		41		(82)		(1)		144
Net income/(loss)	$	162	$	24	$	41	$	(105)	$	(1)	$	121

	Three months ended March 31, 2019
(In millions)	Texas		East		West/Other		Corporate		Eliminations		Total
Operating revenues	$	1,466	$	609	$	93	$	(1)	$	(2)	$	2,165
Depreciation and amortization	40		26		11		8		—		85
Reorganization costs	1		—		—		12		—		13
Gain on sale of assets	—		1		—		—		—		1
Equity in losses of unconsolidated affiliates	(3)		—		(18)		—		—		(21)
Income/(loss) from continuing operations before income taxes	150		99		(23)		(127)		(1)		98
Income/(loss) from continuing operations	150		99		(23)		(131)		(1)		94
Income from discontinued operations, net of tax	—		—		—		388		—		388
Net income/(loss)	$	150	$	99	$	(23)	$	257	$	(1)	$	482

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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The income tax provision consisted of the following:

	Three months ended March 31,
(In millions, except rates)	2020			2019
Income from continuing operations before income taxes	$	144		$	98
Income tax expense from continuing operations	23			4
Effective income tax rate	16.0		%	4.1		%

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Summary of Significant Accounting Policies - Other Balance Sheet Information (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Property, plant and equipment accumulated depreciation	$ 1,832	$ 1,752
Intangible assets accumulated amortization	$ 1,237	$ 1,262

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Revenue Recognition - Performance Obligations Expected Timing of Satisfaction (Details)	Mar. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue remaining performance obligation period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue remaining performance obligation period	1 year

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Long-term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 11, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt amount	$ 6,592		$ 6,042
Long-term Debt, Current Maturities	(640)		(88)
Less debt issuance costs	(63)		(65)
Discounts	(82)		(86)
Total long-term debt	5,807		5,803
Recourse Debt
Debt Instrument [Line Items]
Debt amount	6,560		6,008
Recourse Debt | Senior Notes, due 2026
Debt Instrument [Line Items]
Debt amount	$ 1,000		1,000
Interest rate, stated percentage	7.25%
Recourse Debt | Senior Notes, due 2027
Debt Instrument [Line Items]
Debt amount	$ 1,230		1,230
Interest rate, stated percentage	6.625%
Recourse Debt | Senior Notes, due 2028
Debt Instrument [Line Items]
Debt amount	$ 821		821
Interest rate, stated percentage	5.75%
Recourse Debt | Senior Notes, due 2029
Debt Instrument [Line Items]
Debt amount	$ 733		733
Interest rate, stated percentage	5.25%
Recourse Debt | Convertible Senior Notes, due 2048
Debt Instrument [Line Items]
Debt amount	$ 575		575
Interest rate, stated percentage	2.75%
Recourse Debt | Senior Secured First Lien Notes, due 2024
Debt Instrument [Line Items]
Debt amount	$ 600		600
Interest rate, stated percentage	3.75%
Recourse Debt | Senior Secured First Lien Notes, due 2029
Debt Instrument [Line Items]
Debt amount	$ 500		500
Interest rate, stated percentage	4.45%
Recourse Debt | Tax-exempt bonds
Debt Instrument [Line Items]
Debt amount	$ 466		466
Recourse Debt | Tax-exempt bonds | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	1.30%	1.30%
Recourse Debt | Tax-exempt bonds | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	6.00%
Line of Credit | Revolving Credit Facility | Revolver Facility
Debt Instrument [Line Items]
Debt amount	$ 635		83
Line of Credit | Revolving Credit Facility | Revolver Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Non Recourse Debt
Debt Instrument [Line Items]
Debt amount	$ 32		34
Non Recourse Debt | Other
Debt Instrument [Line Items]
Debt amount	$ 32		$ 34

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Accounting for Derivative Instruments and Hedging Activities - Fair value within the derivative instrument valuation (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative Liabilities	$ 1,202	$ 1,103
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets	1,318	1,170
Derivative Liabilities	1,202	1,103
Not Designated as Hedging Instrument | Commodity contracts current
Derivative [Line Items]
Derivative Assets	884	860
Derivative Liabilities	832	781
Not Designated as Hedging Instrument | Commodity contracts long-term
Derivative [Line Items]
Derivative Assets	434	310
Derivative Liabilities	$ 370	$ 322

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Label	Element	Value
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Amount	us-gaap_RevenueRemainingPerformanceObligation	$ 607,000,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Amount	us-gaap_RevenueRemainingPerformanceObligation	305,000,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Amount	us-gaap_RevenueRemainingPerformanceObligation	42,000,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Amount	us-gaap_RevenueRemainingPerformanceObligation	8,000,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Amount	us-gaap_RevenueRemainingPerformanceObligation	$ 442,000,000

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Nuclear Decommissioning Trust Fund - Narrative (Details)	Mar. 31, 2020
STP
Nuclear decommissioning trust fund
Ownership interest as percentage	44.00%

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash Flows from Operating Activities
Net Income	$ 121	$ 482
Income from discontinued operations, net of income tax	0	388
Income/(loss) from continuing operations	121	94
Adjustments to reconcile net income to cash provided by operating activities:
Distributions from and equity in losses of unconsolidated affiliates	16	21
Depreciation and amortization	109	85
Accretion of asset retirement obligations	11	7
Provision for credit losses	24	26
Amortization of nuclear fuel	13	13
Amortization of financing costs and debt discount/premiums	6	7
Loss on debt extinguishment, net	(1)	0
Amortization of emissions allowances and energy credits	7	6
Amortization of unearned equity compensation	5	4
(Gain)/loss on sale of assets and disposal of assets	(14)	3
Impairment losses	18	0
Changes in derivative instruments	(46)	(15)
Changes in deferred income taxes and liability for uncertain tax benefits	19	(2)
Changes in collateral deposits in support of energy risk management activities	9	(123)
Changes in nuclear decommissioning trust liability	8	9
Changes in other working capital	(99)	(234)
Cash provided/(used) by continuing operations	208	(99)
Cash provided by discontinued operations	0	8
Net Cash Provided/(Used) by Operating Activities	208	(91)
Cash Flows from Investing Activities
Payments for acquisitions of businesses	0	(16)
Capital expenditures	(66)	(49)
Net purchases of emission allowances	(8)	0
Investments in nuclear decommissioning trust fund securities	(121)	(122)
Proceeds from the sale of nuclear decommissioning trust fund securities	112	113
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees	15	1,313
Net distributions from investments in unconsolidated affiliates	0	4
Contributions to discontinued operations	0	(44)
Other	0	1
Cash (used)/provided by continuing operations	(68)	1,198
Cash used by discontinued operations	0	(2)
Net Cash (Used)/Provided by Investing Activities	(68)	1,196
Cash Flows from Financing Activities
Payments of dividends to common stockholders	(74)	(8)
Payments for share repurchase activity	(179)	(783)
Purchase of and distributions to noncontrolling interests from subsidiaries	(2)	(1)
Proceeds from issuance of common stock	0	2
Proceeds from issuance of long-term debt	59	0
Repayments of long-term debt	(60)	(37)
Net proceeds from Revolving Credit Facility	552	0
Other	(3)	0
Cash provided/(used) by continuing operations	293	(827)
Cash provided by discontinued operations	0	43
Net Cash Provided/(Used) by Financing Activities	293	(784)
Change in Cash from discontinued operations	0	49
Net Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash	433	272
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period	385	613
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period	$ 818	$ 885

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Fair Value of Financial Instruments - Reconciliation of Level 3 Financial Instruments (Details) - Level 3 - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		$ 39
Total (losses)/gains — realized/unrealized included in earnings		(10)
Cash received		(1)
Purchases		(2)
Transfers into Level 3		17
Transfers out of Level 3		(27)
Ending balance		16
Gains (losses) for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held		(12)
Debt Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		19
Total (losses)/gains — realized/unrealized included in earnings		0
Cash received		(1)
Purchases		0
Transfers into Level 3		0
Transfers out of Level 3		0
Ending balance		18
Gains (losses) for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held		0
Derivatives
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 38	20
Total (losses)/gains — realized/unrealized included in earnings	22	(10)
Cash received	0	0
Purchases	8	(2)
Transfers into Level 3	8	17
Transfers out of Level 3	(3)	(27)
Ending balance	73	(2)
Gains (losses) for the period included in earnings attributable to the change in unrealized gains or losses relating to assets or liabilities still held	$ (9)	$ (12)

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Revenues
Total operating revenues	$ 2,019	$ 2,165
Operating Costs and Expenses
Cost of operations	1,457	1,651
Depreciation and amortization	109	85
Selling, general and administrative	209	194
Reorganization costs	3	13
Development costs	3	2
Total operating costs and expenses	1,781	1,945
Gain on sale of assets	6	1
Operating Income/(Loss)	244	221
Other (Expense)/Income
Equity in losses of unconsolidated affiliates	(11)	(21)
Impairment losses on investments	18	0
Other income, net	27	12
Interest expense	(98)	(114)
Total other income/(expense)	(100)	(123)
Income from Continuing Operations Before Income Taxes	144	98
Income tax expense	23	4
Income from Continuing Operations	121	94
Income from discontinued operations, net of income tax	0	388
Net Income (Loss)	$ 121	$ 482
Earnings per Share
Weighted average number of common shares outstanding — basic (in shares)	248	278
Income from continuing operations per weighted average common share — basic (in usd per share)	$ 0.49	$ 0.34
(Loss)/income from discontinued operations per weighted average common share — basic (in usd per share)	0	1.39
Earnings/Loss per Weighted Average Common Share — Basic (in usd per share)	$ 0.49	$ 1.73
Weighted average number of common shares outstanding — diluted (in shares)	249	280
Income from continuing operations per weighted average common share — diluted (in usd per share)	$ 0.49	$ 0.34
(Loss)/income from discontinued operations per weighted average common share — diluted (in usd per share)	0	1.38
Earnings/(Loss) per Weighted Average Common Share — Diluted (in usd per share)	$ 0.49	$ 1.72

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Discontinued Operations and Dispositions - Discontinued Operations Narrative (Details) $ in Millions		3 Months Ended
	Feb. 06, 2018 USD ($) extension	Mar. 31, 2020 USD ($) MW	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Feb. 04, 2019 USD ($) MW
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Generation capacity (in MW) | MW		23,000
South Central Portfolio | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration					$ 1,000
Generation capacity (in MW) | MW					1,153
Carlsbad Energy Holdings LLC | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration	$ 385
Percentage of ownership sold	100.00%
Lease and easement agreement, number of extensions | extension	2
Lease renewal term	10 years
Additional commitments related to project		$ 23		$ 23
Other | Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from other asset sales		$ 7	$ 10

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Condensed Consolidating Financial Information - CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Net Income/(Loss)	$ 121	$ 482
Other Comprehensive Loss
Foreign currency translation adjustments, net	(15)	1
Defined benefit plans, net	0	(3)
Other comprehensive income/(loss)	(15)	(2)
Comprehensive Income	106	480
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net Income/(Loss)	(265)	(309)
Other Comprehensive Loss
Foreign currency translation adjustments, net	30	(2)
Defined benefit plans, net	(2)	0
Other comprehensive income/(loss)	28	(2)
Comprehensive Income	(237)	(311)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Income/(Loss)	269	255
Other Comprehensive Loss
Foreign currency translation adjustments, net	(15)	1
Defined benefit plans, net	2	0
Other comprehensive income/(loss)	(13)	1
Comprehensive Income	256	256
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Income/(Loss)	(4)	54
Other Comprehensive Loss
Foreign currency translation adjustments, net	(15)	1
Defined benefit plans, net	0	0
Other comprehensive income/(loss)	(15)	1
Comprehensive Income	(19)	55
NRG Energy, Inc. (Note Issuer)
Condensed Financial Statements, Captions [Line Items]
Net Income/(Loss)	121	482
Other Comprehensive Loss
Foreign currency translation adjustments, net	(15)	1
Defined benefit plans, net	0	(3)
Other comprehensive income/(loss)	(15)	(2)
Comprehensive Income	$ 106	$ 480

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Changes in Capital Structure - Changes in NRG's common stock issued and outstanding (Details) - shares	1 Months Ended		3 Months Ended	4 Months Ended
	May 07, 2020	Apr. 30, 2020	Mar. 31, 2020	May 07, 2020
Schedule of Stock by Class, Equity [Roll Forward]
Balance as of beginning of period (in shares)	422,979,893	422,979,893	421,890,790	421,890,790
Treasury shares, balance as of beginning of period (in shares)	(177,356,039)	(177,356,039)	(172,894,601)	(172,894,601)
Outstanding, as of beginning of period (in shares)	245,623,854	245,623,854	248,996,189	248,996,189
Shares issued under LTIPs (in shares)			1,089,103
Shares repurchased (in shares)			(4,461,438)
Balance as of end of period (in shares)			422,979,893
Treasury shares, balance as of end of the period (in shares)			(177,356,039)
Outstanding, as of end of period (in shares)			245,623,854
Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Shares issued under LTIPs (in shares)	1,096
Stock issued under ESPP (in shares)		63,455
Shares repurchased (in shares)	(1,601,345)
Outstanding, as of end of period (in shares)	244,087,060			244,087,060
Common Stock
Schedule of Stock by Class, Equity [Roll Forward]
Balance as of beginning of period (in shares)	422,979,893	422,979,893	421,890,790	421,890,790
Shares issued under LTIPs (in shares)			1,089,103
Shares repurchased (in shares)			0
Balance as of end of period (in shares)			422,979,893
Common Stock | Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Shares issued under LTIPs (in shares)	1,096
Shares repurchased (in shares)	0
Balance as of end of period (in shares)	422,980,989			422,980,989
Treasury
Schedule of Stock by Class, Equity [Roll Forward]
Treasury shares, balance as of beginning of period (in shares)	(177,356,039)	(177,356,039)	(172,894,601)	(172,894,601)
Shares issued under LTIPs (in shares)			0
Shares repurchased (in shares)			(4,461,438)
Treasury shares, balance as of end of the period (in shares)			(177,356,039)
Treasury | Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Shares issued under LTIPs (in shares)	0
Shares repurchased (in shares)	(1,601,345)
Treasury shares, balance as of end of the period (in shares)	(178,893,929)			(178,893,929)
Capital Allocation Plan
Schedule of Stock by Class, Equity [Roll Forward]
Shares repurchased (in shares)			(5,171,501)
Capital Allocation Plan | Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Shares repurchased (in shares)	(1,601,345)			(6,772,846)
ESPP | Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Stock issued under ESPP (in shares)	63,455
ESPP | Common Stock | Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Stock issued under ESPP (in shares)	0
ESPP | Treasury | Subsequent Event
Schedule of Stock by Class, Equity [Roll Forward]
Stock issued under ESPP (in shares)	63,455

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Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information
Operating revenues	$ 2,019	$ 2,165
Depreciation and amortization	109	85
Reorganization costs	3	13
Gain on sale of assets	6	1
Equity in losses of unconsolidated affiliates	(11)	(21)
Income/(loss) from continuing operations before income taxes	144	98
Income/(loss) from continuing operations	121	94
Income from discontinued operations, net of tax	0	388
Net (loss)/income	121	482
Eliminations
Segment Reporting Information
Operating revenues	(3)	(2)
Depreciation and amortization	0	0
Reorganization costs	0	0
Gain on sale of assets	0	0
Equity in losses of unconsolidated affiliates	0	0
Income/(loss) from continuing operations before income taxes	(1)	(1)
Income/(loss) from continuing operations		(1)
Income from discontinued operations, net of tax		0
Net (loss)/income	(1)	(1)
Texas | Operating Segments
Segment Reporting Information
Operating revenues	1,358	1,466
Depreciation and amortization	59	40
Reorganization costs	1	1
Gain on sale of assets	0	0
Equity in losses of unconsolidated affiliates	0	(3)
Income/(loss) from continuing operations before income taxes	162	150
Income/(loss) from continuing operations		150
Income from discontinued operations, net of tax		0
Net (loss)/income	162	150
East | Operating Segments
Segment Reporting Information
Operating revenues	539	609
Depreciation and amortization	33	26
Reorganization costs	0	0
Gain on sale of assets	0	1
Equity in losses of unconsolidated affiliates	0	0
Income/(loss) from continuing operations before income taxes	24	99
Income/(loss) from continuing operations		99
Income from discontinued operations, net of tax		0
Net (loss)/income	24	99
West/Other | Operating Segments
Segment Reporting Information
Operating revenues	125	93
Depreciation and amortization	8	11
Reorganization costs	0	0
Gain on sale of assets	1	0
Equity in losses of unconsolidated affiliates	(11)	(18)
Income/(loss) from continuing operations before income taxes	41	(23)
Income/(loss) from continuing operations		(23)
Income from discontinued operations, net of tax		0
Net (loss)/income	41	(23)
Corporate | Operating Segments
Segment Reporting Information
Operating revenues	0	(1)
Depreciation and amortization	9	8
Reorganization costs	2	12
Gain on sale of assets	5	0
Equity in losses of unconsolidated affiliates	0	0
Income/(loss) from continuing operations before income taxes	(82)	(127)
Income/(loss) from continuing operations		(131)
Income from discontinued operations, net of tax		388
Net (loss)/income	$ (105)	$ 257

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Long-term Debt

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Debt and Finance Leases

Long-term Debt

Long-term debt consisted of the following:

(In millions, except rates)	March 31, 2020		December 31, 2019		Interest rate %
Recourse debt:
Senior Notes, due 2026	$	1,000	$	1,000	7.250
Senior Notes, due 2027	1,230		1,230		6.625
Senior Notes, due 2028	821		821		5.750
Senior Notes, due 2029	733		733		5.250
Convertible Senior Notes, due 2048	575		575		2.750
Senior Secured First Lien Notes, due 2024	600		600		3.750
Senior Secured First Lien Notes, due 2029	500		500		4.450
Revolving Credit Facility(a)	635		83		L+ 1.750
Tax-exempt bonds	466		466		1.300 - 6.000
Subtotal recourse debt	6,560		6,008
Non-recourse debt:
Other	32		34		various
Subtotal all non-recourse debt	32		34
Subtotal long-term debt (including current maturities)	6,592		6,042
Less current maturities	(640)		(88)
Less debt issuance costs	(63)		(65)
Discounts	(82)		(86)
Total long-term debt	$	5,807	$	5,803

(a) As of March 31, 2020, the Company had drawn under its Revolving Credit Facility using a mix of 1-week LIBOR and 1-month LIBOR + 1.750

Recourse Debt

Revolving Credit Facility

The Company had $635 million and $83 million outstanding under its Revolving Credit Facility as of March 31, 2020 and December 31, 2019, respectively. Due to market conditions, primarily as a result of COVID-19, the Company drew upon the facility in the first quarter of 2020 as a precaution and to proportionally increase cash on hand. As of May 7, 2020, the Company had $250 million outstanding under its Revolving Credit Facility.

Tax-Exempt Bonds

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 Bonds"). The Bonds are guaranteed on a first-priority basis by each of NRG’s current and future subsidiaries that guarantee indebtedness under its credit agreement. The Bonds 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 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 Bonds or any of NRG’s senior, unsecured debt securities or downgrade such rating below investment grade. The Bonds are subject to mandatory tender and purchase on April 3, 2023 and have a final maturity date of April 1, 2042.

NRG used the net proceeds from the offering to redeem the existing principal amount of outstanding Dunkirk Power LLC 5.875% tax exempt bonds due 2042.

Non-Recourse Debt

Cottonwood - Letters of Credit

On January 4, 2019, the Company entered into an $80 million credit agreement to issue letters of credit, which is currently supporting the Cottonwood facility lease. Annual fees of 1.33% on the facility are paid quarterly in advance. As of March 31, 2020, the full $80 million was issued.

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments For cash and cash equivalents, funds deposited by counterparties, accounts and other receivables, accounts payable, restricted cash, and cash collateral posted and received in support of energy risk management activities, the carrying amounts approximate fair values because of the short-term maturity of those instruments and are classified as Level 1 within the fair value hierarchy.

The estimated carrying amounts and fair values of NRG's recorded financial instruments not carried at fair market value are as follows:

	March 31, 2020				December 31, 2019
(In millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Notes receivable	$	10	$	7	$	11	$	8
Liabilities:
Long-term debt, including current portion (a)	6,510		6,634		5,956		6,504

(a) Excludes deferred financing costs, which are recorded as a reduction to long-term debt in 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 March 31, 2020 and December 31, 2019:

	March 31, 2020				December 31, 2019
(In millions)	Level 2		Level 3		Level 2		Level 3
Long-term debt, including current portion	$	5,967	$	667	$	6,388	$	116

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 condensed consolidated balance sheets on a recurring basis and their level within the fair value hierarchy:

	March 31, 2020
(In millions)	Total		Level 1		Level 2		Level 3
Investments in securities (classified within other current and non-current assets)	$	13	$	—	$	13	$	—
Nuclear trust fund investments:
Cash and cash equivalents	21		21		—		—
U.S. government and federal agency obligations	57		56		1		—
Federal agency mortgage-backed securities	93		—		93		—
Commercial mortgage-backed securities	33		—		33		—
Corporate debt securities	125		—		125		—
Equity securities	308		308		—		—
Foreign government fixed income securities	5		—		5		—
Other trust fund investments:
U.S. government and federal agency obligations	1		1		—		—
Derivative assets:
Commodity contracts	1,318		111		1,015		192
Measured using net asset value practical expedient:
Equity securities — nuclear trust fund investments	60
Equity securities	6
Total assets	$	2,040	$	497	$	1,285	$	192
Derivative liabilities:
Commodity contracts	$	1,202	$	193	$	890	$	119
Total liabilities	$	1,202	$	193	$	890	$	119

	December 31, 2019
(In millions)	Total		Level 1		Level 2		Level 3
Investments in securities (classified within other current and non-current assets)	$	20	$	—	$	20	$	—
Nuclear trust fund investments:
Cash and cash equivalents	17		17		—		—
U.S. government and federal agency obligations	68		68		—		—
Federal agency mortgage-backed securities	100		—		100		—
Commercial mortgage-backed securities	29		—		29		—
Corporate debt securities	109		—		109		—
Equity securities	388		388		—		—
Foreign government fixed income securities	5		—		5		—
Other trust fund investments:
U.S. government and federal agency obligations	1		1		—		—
Derivative assets:
Commodity contracts	1,170		84		893		193
Measured using net asset value practical expedient:
Equity securities — nuclear trust fund investments	78
Equity securities	8
Total assets	$	1,993	$	558	$	1,156	$	193
Derivative liabilities:
Commodity contracts	$	1,103	$	143	$	805	$	155
Total liabilities	$	1,103	$	143	$	805	$	155

The following table reconciles, for the three months ended March 31, 2020 and 2019, the beginning and ending balances for financial instruments that are recognized at fair value in the condensed consolidated financial statements, using significant unobservable inputs:

	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
	Three months ended March 31, 2020		Three months ended March 31, 2019
(In millions)	Derivatives(a)		Debt Securities		Derivatives(a)		Total
Beginning balance	$	38	$	19	$	20	$	39
Total gains/(losses) realized/unrealized— included in earnings	22		—		(10)		(10)
Cash received	—		(1)		—		(1)
Purchases	8		—		(2)		(2)
Transfers into Level 3(b)	8		—		17		17
Transfers out of Level 3(b)	(3)		—		(27)		(27)
Ending balance	$	73	$	18	$	(2)	$	16
(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 period end	$	(9)	$	—	$	(12)	$	(12)

(a)Consists of derivative 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 in/out are with Level 2

Derivative Fair Value Measurements

A portion of NRG'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. The remainder of the assets and liabilities represent 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 the observable market data with similar characteristics. As of March 31, 2020, contracts valued with prices provided by models and other valuation techniques make up 15% of derivative assets and 10% of derivative liabilities.

NRG's significant positions classified as Level 3 include physical and financial power executed in illiquid markets, as well as financial transmission rights, or FTRs. The significant unobservable inputs used in developing fair value include illiquid 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 March 31, 2020 and December 31, 2019:

	March 31, 2020
	Fair Value						Input/Range
(In millions)	Assets		Liabilities		Valuation Technique	Significant Unobservable Input	Low		High		Weighted Average
Power Contracts	$	150	$	107	Discounted Cash Flow	Forward Market Price (per MWh)	$	6	$	165	$	25
FTRs	42		12		Discounted Cash Flow	Auction Prices (per MWh)	(380)		91		0
	$	192	$	119

	December 31, 2019
	Fair Value						Input/Range
(In millions)	Assets		Liabilities		Valuation Technique	Significant Unobservable Input	Low		High		Weighted Average
Power Contracts	$	151	$	139	Discounted Cash Flow	Forward Market Price (per MWh)	$	8	$	218	$	24
FTRs	42		16		Discounted Cash Flow	Auction Prices (per MWh)	(105)		213		0
	$	193	$	155

The following table provides sensitivity of fair value measurements to increases/(decreases) in significant unobservable inputs as of March 31, 2020 and December 31, 2019:

Significant Unobservable Input	Position	Change In Input	Impact on Fair Value Measurement
Forward Market Price Power	Buy	Increase/(Decrease)	Higher/(Lower)
Forward Market Price Power	Sell	Increase/(Decrease)	Lower/(Higher)
FTR Prices	Buy	Increase/(Decrease)	Higher/(Lower)
FTR Prices	Sell	Increase/(Decrease)	Lower/(Higher)

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 is calculated based on published default probabilities. As of March 31, 2020, the credit reserve resulted in a $2 million decrease in operating revenue and cost of operations. As of December 31, 2019, the credit reserve did not result in a significant change in fair value in operating revenue and cost of operations.

Concentration of Credit Risk

In addition to the credit risk discussion as disclosed in Note 2, Summary of Significant Accounting Policies, to the Company's 2019 Form 10-K, the following is a discussion of the concentration of credit risk for the Company's contractual obligations. 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. NRG is exposed to counterparty credit risk through various activities including wholesale sales, fuel purchases and retail supply arrangements, as well as retail customer credit risk through its retail load activities.

Counterparty Credit Risk

The Company's counterparty credit risk policies are disclosed in its 2019 Form 10-K. As of March 31, 2020, counterparty credit exposure, excluding credit exposure from RTOs, ISOs, registered commodity exchanges and certain long-term agreements, was $346 million and NRG held collateral (cash and letters of credit) against those positions of $54 million, resulting in a net exposure of $293 million. 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 54% of the Company's exposure before collateral is expected to roll off by the end of 2021. 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.

	Net Exposure(a)(b)
Category by Industry Sector	(% of Total)
Utilities, energy merchants, marketers and other	81	%
Financial institutions	19
Total as of March 31, 2020	100	%

	Net Exposure (a)(b)
Category by Counterparty Credit Quality	(% of Total)
Investment grade	53	%
Non-investment grade/non-rated	47
Total as of March 31, 2020	100	%

(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 $47 million of exposure to one wholesale counterparty in excess of 10% of total net exposure discussed above as of March 31, 2020. 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, NRG does not anticipate a material impact on its financial position or results of operations from nonperformance by any of NRG's counterparties.

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 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 March 31, 2020, aggregate credit risk exposure managed by NRG to these counterparties was approximately $689 million for the next five years, including exposure to PG&E through its unconsolidated affiliates, Ivanpah and Agua Caliente.

Retail Customer Credit Risk

The Company is exposed to retail credit risk through the Company's 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 may result from both non-payment 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 March 31, 2020, 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. 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 credit losses.

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Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue from Contracts with Customer

Disaggregated Revenues

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the three months ended March 31, 2020 and 2019:

	Three months ended March 31, 2020
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Retail revenue:
Mass Market	$	1,032	$	347	$	—	$	(1)	$	1,378
Business Solutions	260		23		—		—		283
Total retail revenue	1,292		370		—		(1)		1,661
Energy revenue(a)	5		45		75		(1)		124
Capacity revenue(a)	—		134		15		—		149
Mark-to-market for economic hedging activities(b)	—		(20)		15		1		(4)
Other revenue(a)	61		10		20		(2)		89
Total operating revenue	1,358		539		125		(3)		2,019
Less: Lease revenue	—		—		5		—		5
Less: Realized and unrealized ASC 815 revenue	7		39		44		(1)		89
Total revenue from contracts with customers	$	1,351	$	500	$	76	$	(2)	$	1,925
(a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above:
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Energy revenue	$	—	$	35	$	19	$	(1)	$	53
Capacity revenue	—		24		—		—		24
Other revenue	7		—		10		(1)		16
(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

	Three months ended March 31, 2019
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Retail revenue:
Mass Market	$	995	$	320	$	—	$	(2)	$	1,313
Business Solutions	258		18		—		—		276
Total retail revenue	1,253		338		—		(2)		1,589
Energy revenue(a)	105		126		58		1		290
Capacity revenue(a)	—		144		12		—		156
Mark-to-market for economic hedging activities(b)	31		(15)		4		—		20
Other revenue(a)	77		16		19		(2)		110
Total operating revenue	1,466		609		93		(3)		2,165
Less: Lease revenue	—		—		5		—		5
Less: Realized and unrealized ASC 815 revenue	315		54		12		—		381
Total revenue from contracts with customers	$	1,151	$	555	$	76	$	(3)	$	1,779
(a) The following table represents the realized revenues related to derivative instruments that are accounted for under ASC 815 and included in the amounts above:
(In millions)	Texas		East		West/Other		Corporate/Eliminations		Total
Energy revenue	$	271	$	47	$	2	$	—	$	320
Capacity revenue	—		18		—		—		18
Other revenue	13		4		6		—		23
(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

Contract Asset and Liabilities

The following table reflects the contract assets and liabilities included in the Company’s balance sheet as of March 31, 2020 and December 31, 2019:

(In millions)	March 31, 2020		December 31, 2019
Deferred customer acquisition costs	$	133	$	133
Accounts receivable, net - Contracts with customers	885		1,002
Accounts receivable, net - Derivative instruments	26		18
Accounts receivable, net - Affiliate	4		5
Total accounts receivable, net	$	915	$	1,025
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)	$	328	$	402
Deferred revenues(a)	87		82

(a) Deferred revenues from contracts with customers for the three months ended March 31, 2020 and the year ended December 31, 2019 were approximately $27 million and $24 million, respectively

The revenue recognized from contracts with customers during both the three months ended March 31, 2020 and 2019 relating to the deferred revenue balance at the beginning of each period was $13 million. The change in deferred revenue balances during the three months ended March 31, 2020 and 2019 was primarily due to the timing difference of when consideration was received and when the performance obligation was transferred.

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Accounting for Derivative Instruments and Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Net notional volume buy/(sell) of NRG's open derivative transactions broken out by commodity

The following table summarizes the net notional volume buy/(sell) of NRG's open derivative transactions broken out by category, excluding those derivatives that qualified for the NPNS exception, as of March 31, 2020 and December 31, 2019. 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.

		Total Volume (In millions)
Category	Units	March 31, 2020	December 31, 2019
Emissions	Short Ton	1	3
Renewable Energy Certificates	Certificates	1	1
Coal	Short Ton	7	10
Natural Gas	MMBtu	(152)	(181)
Power	MWh	46	38
Capacity	MW/Day	(1)	(1)

Fair value within the derivative instrument valuation on the balance sheets

The following table summarizes the fair value within the derivative instrument valuation on the balance sheets:

	Fair Value
	Derivative Assets				Derivative Liabilities
(In millions)	March 31, 2020		December 31, 2019		March 31, 2020		December 31, 2019
Derivatives Not Designated as Cash Flow or Fair Value Hedges:
Commodity contracts current	$	884	$	860	$	832	$	781
Commodity contracts long-term	434		310		370		322
Total Derivatives Not Designated as Cash Flow or Fair Value Hedges	$	1,318	$	1,170	$	1,202	$	1,103

Offsetting of derivatives by counterparty assets

The following table summarizes the offsetting of 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 / Liabilities		Derivative Instruments		Cash Collateral (Held) / Posted		Net Amount
As of March 31, 2020
Commodity contracts:
Derivative assets	$	1,318	$	(1,010)	$	(17)	$	291
Derivative liabilities	(1,202)		1,010		94		(98)
Total commodity contracts	$	116	$	—	$	77	$	193

	Gross Amounts Not Offset in the Statement of Financial Position
(In millions)	Gross Amounts of Recognized Assets / Liabilities		Derivative Instruments		Cash Collateral (Held) / Posted		Net Amount
As of December 31, 2019
Commodity contracts:
Derivative assets	$	1,170	$	(909)	$	(7)	$	254
Derivative liabilities	(1,103)		909		73		(121)
Total commodity contracts	$	67	$	—	$	66	$	133

Offsetting of derivatives by counterparty, liabilities

The following table summarizes the offsetting of 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 / Liabilities		Derivative Instruments		Cash Collateral (Held) / Posted		Net Amount
As of March 31, 2020
Commodity contracts:
Derivative assets	$	1,318	$	(1,010)	$	(17)	$	291
Derivative liabilities	(1,202)		1,010		94		(98)
Total commodity contracts	$	116	$	—	$	77	$	193

	Gross Amounts Not Offset in the Statement of Financial Position
(In millions)	Gross Amounts of Recognized Assets / Liabilities		Derivative Instruments		Cash Collateral (Held) / Posted		Net Amount
As of December 31, 2019
Commodity contracts:
Derivative assets	$	1,170	$	(909)	$	(7)	$	254
Derivative liabilities	(1,103)		909		73		(121)
Total commodity contracts	$	67	$	—	$	66	$	133

Pre-tax effects of economic hedges that have not been designated as cash flow hedges, ineffectiveness on cash flow hedges and trading activity on the Company's statement 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 commodity hedges is included within operating revenues and cost of operations and the effect of interest rate hedges is included in interest expense.

(In millions)	Three months ended March 31,
Unrealized mark-to-market results	2020		2019
Reversal of previously recognized unrealized losses on settled positions related to economic hedges	$	9	$	19
Reversal of acquired loss/(gain) positions related to economic hedges	1		(2)
Net unrealized gains on open positions related to economic hedges	34		3
Total unrealized mark-to-market gains for economic hedging activities	44		20
Reversal of previously recognized unrealized (gains) on settled positions related to trading activity	(2)		(6)
Net unrealized gains on open positions related to trading activity	13		13
Total unrealized mark-to-market gains for trading activity	11		7
Total unrealized gains	$	55	$	27

	Three months ended March 31,
(In millions)	2020		2019
Unrealized gains included in operating revenues	$	7	$	27
Unrealized gains included in cost of operations	48		—
Total impact to statement of operations — energy commodities	$	55	$	27
Total impact to statement of operations — interest rate contracts	$	—	$	(9)

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Reconciliation of NRG's basic and diluted earnings per share

The reconciliation of NRG's basic and diluted income per share is shown in the following table:

	Three months ended March 31,
(In millions, except per share data)	2020		2019
Basic income per share:
Net income available to common shareholders	$	121	$	482
Weighted average number of common shares outstanding - basic	248		278
Income per weighted average common share — basic	$	0.49	$	1.73
Diluted income per share:
Net income available to common shareholders	$	121	$	482
Weighted average number of common shares outstanding - basic	248		278
Incremental shares attributable to the issuance of equity compensation (treasury stock method)	1		2
Weighted average number of common shares outstanding - dilutive	249		280
Income per weighted average common share — diluted	$	0.49	$	1.72