NRG ENERGY, INC.

For the period ended Mar 31, 2026. Filed May 6, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2026 · Filed May 6, 2026

NRG$97.40+10.3%Stored close · as of Nov 9, 2026

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Contents

GLOSSARY OF TERMS

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

ACE	Affordable Clean Energy
Adjusted EBITDA	Adjusted earnings before interest, taxes, depreciation and amortization
AESO	Alberta Electric System Operator
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
BTU	British Thermal Unit
Business	NRG Business, which serves business customers
CAA	Clean Air Act
CAISO	California Independent System Operator
CAMT	15% Corporate Alternative Minimum Tax enacted by the IRA on August 16, 2022
CDD	Cooling Degree Day
Cedar Bayou 5	Cedar Bayou Unit 5 generation facility, a 689 MW natural gas-fueled combined cycle plant
CFTC	U.S. Commodity Futures Trading Commission
CO2	Carbon Dioxide
Company	NRG Energy, Inc.
Convertible Senior Notes	NRG’s unsecured 2.750% Convertible Senior Notes due 2048, which were redeemed on July 8, 2025
Cottonwood	Cottonwood Generating Station, a 1,139 MW natural gas-fueled plant. NRG leased and operated the plant through May 2025
CPP	Clean Power Plan
D.C. Circuit	U.S. Court of Appeals for the District of Columbia Circuit
DOJ	U.S. Department of Justice
Dth	Dekatherms
Economic gross margin	Sum of retail revenue, energy revenue, capacity revenue and other revenue, less cost of fuel, purchased energy and other cost of sales
EGU	Electric Generating Unit
ELG	Effluent Limitations Guidelines which are EPA regulations issued under the federal Clean Water Act
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
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 United States
GHG	Greenhouse Gas
Green Mountain Energy	Green Mountain Energy Company
Greens Bayou 6	Greens Bayou Unit 6 generation facility, a 443 MW natural gas-fueled peaker plant
GW	Gigawatts
GWh	Gigawatt Hours
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 whether the electricity output measured is gross or net generation and is generally expressed as BTU per net kWh
Home	NRG Home, which serves residential customers
ICE	Intercontinental Exchange
IESO	Independent Electricity System Operator
ISO	Independent System Operator, also referred to as RTOs
ISO-NE	ISO New England Inc.
Ivanpah	Ivanpah Solar Electric Generation Station, a 385 MW solar thermal power plant located in California’s Mojave Desert in which NRG owns 54.5% interest
kWh	Kilowatt-hours
LS Power	LS Power Equity Advisors, LLC
LSP Portfolio	The portfolio of natural gas and dual fuel generation and other assets from LS Power
LTIPs	Collectively, the NRG long-term incentive plan (“LTIP”) and the Vivint LTIP
MDth	Thousand Dekatherms
Midwest Generation	Midwest Generation, LLC
MISO	Midcontinent Independent System Operator, Inc.
MMBtu	Million British Thermal Units
MMDth	Million Dekatherms
MW	Megawatts
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
Net Exposure	Counterparty credit exposure to NRG, net of collateral
Net Revenue Rates	Sum of retail revenues less TDSP transportation charges
Nodal	Nodal Exchange is a derivatives exchange
NOL	Net Operating Loss
NOx	Nitrogen Oxides
NPNS	Normal Purchase Normal Sale
NRC	U.S. Nuclear Regulatory Commission
NRG	NRG Energy, Inc.
NRG Receivables	NRG Receivables LLC, a wholly-owned indirect subsidiary of the Company
NYISO	New York Independent System Operator
NYMEX	New York Mercantile Exchange
OECD	Organization for Economic Cooperation and Development
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
RCRA	Resource Conservation and Recovery Act of 1976
Receivables Facility	NRG Receivables LLC, a bankruptcy remote, special purpose, wholly-owned indirect subsidiary of the Company’s $2.3 billion accounts receivables securitization facility due 2026, which was last amended on June 20, 2025
RECs	Renewable Energy Certificates
Renewable PPA	A third-party PPA entered into directly with a renewable generation facility for the offtake of the RECs or other similar environmental attributes generated by such facility, coupled with the associated power generated by that facility
Revolving Credit Facility	The Company’s $4.6 billion revolving credit facility due 2029, which was last amended on May 27, 2025

RGGI	Regional Greenhouse Gas Initiative
RMR	Reliability Must-Run
RTO	Regional Transmission Organization, also referred to as ISOs
SEC	U.S. Securities and Exchange Commission
Senior Credit Facility	NRG’s senior secured credit facility, comprised of the Revolving Credit Facility and the Term Loan B Facility
Senior Notes	As of March 31, 2026, NRG’s $9.9 billion outstanding unsecured senior notes consisting of $821 million of 5.750% senior notes due 2028, $733 million of the 5.250% senior notes due 2029, $500 million of the 3.375% senior notes due 2029, $798 million of the 5.750% senior notes due 2029, $1.0 billion of the 3.625% senior notes due 2031, $480 million of the 3.875% senior notes due 2032, $925 million of the 6.000% senior notes due 2033, $950 million of the 6.250% senior notes due 2034, $1.3 billion of the 5.750% senior notes due 2034 and $2.4 billion of the 6.000% senior notes due 2036
Senior Secured First Lien Notes	As of March 31, 2026, NRG’s $3.4 billion outstanding Senior Secured First Lien Notes consists of $900 million of the 2.450% Senior Secured First Lien Notes due 2027, $500 million of the 4.450% Senior Secured First Lien Notes due 2029, $625 million of the 4.734% Senior Secured First Lien Notes due 2030, $740 million of the 7.000% Senior Secured First Lien Notes due 2033 and $625 million of the 5.407% Senior Secured First Lien Notes due 2035
Series A Preferred Stock	As of March 31, 2026, NRG’s Series A Preferred Stock consists of 650,000 outstanding shares of the 10.25% Series A Fixed-Rate Reset Cumulative Redeemable Perpetual Preferred Stock, with a $1,000 liquidation preference per share
SO2	Sulfur Dioxide
SOFR	Secured overnight financing rate
TCJA	The Tax Cuts and Jobs Act of 2017
TDSP	Transmission/distribution service provider
TEF	Texas Energy Fund
Texas Generation Portfolio	The acquisition of a portfolio of power generation facilities and other assets from Rockland Capital, LLC
T.H. Wharton	T.H. Wharton generation facility includes a 1,002 MW natural gas-fueled plant, which is currently operational, and an additional 415 MW natural gas-fueled peaker plant, which is currently under construction
U.S.	United States of America
VaR	Value at Risk
VIE	Variable Interest Entity
Winter Storm Uri	A major winter and ice storm that had widespread impacts across North America occurring in February 2021

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.