EPA GHGRP · reporting year 2023 · Power Plants

NRG Energy - GHG emissions profile

Scope 1 reported greenhouse-gas emissions across 14 reporting facilities in 5 states, from the EPA Greenhouse Gas Reporting Program.

MT CO₂e (2023)
22.1M
Reporting facilities
14
States covered
5
Overall rank
#20

Data updated May 2026

NRG Energy is a power plants company that reported 22.1M metric tons of CO2-equivalent emissions in 2023 across 14 reporting facilities in 5 states, per EPA GHGRP data covering 2011–2023. Emissions decreased 63% over the tracked period.

Emissions Insight: NRG Energy

NRG Energy reported 22.1M metric tons of CO2-equivalent in 2023, placing it at rank #20 among all EPA Greenhouse Gas Reporting Program (GHGRP) reporters and #11 within the Power Plants category. The company operates 14 reporting facilities distributed across 5 states, giving an average of approximately 1.6M metric tons of CO2e per facility. Only sites emitting 25,000+ metric tons of CO2e annually are required to report, so these figures represent the company's largest operational emitters rather than its entire carbon footprint.

Classified in the Power Plants sector (NAICS code 221112), NRG Energy sits alongside peers subject to the same reporting thresholds under 40 CFR Part 98. Across the 13 reporting years on record (2011–2023), the data shows a decline of 63.1% in annual emissions. This multi-year lens is critical because year-on-year variation may reflect production volume, fuel mix, facility acquisitions or divestitures, and efficiency upgrades rather than underlying operational intensity.

For analysts and policy users, the key takeaway is that this profile reflects self-reported Scope 1 combustion, process, and fugitive emissions verified by the EPA, not Scope 2 purchased electricity or Scope 3 value-chain emissions. When comparing NRG Energy to other large emitters, weight the 14-facility footprint against the 22.1M MT total to understand concentration risk. California SB 253 and SEC climate disclosure rules will push many GHGRP reporters toward broader Scope 1–3 reporting over the next reporting cycles, so this EPA baseline will remain the comparable backbone for tracking corporate carbon performance.

Largest facilities by reported emissions

NRG Energy - top facilities (MT CO₂e)

W A Parish10.1MLimestone6.6MCedar Bayou1.7MPowerton1.7MT H Wharton606KSan Jacinto Steam Electric S…532KJoliet 29417KGregory Power Facility246K

NRG Energy's largest reporting facilities by cumulative CO₂e

Source: EPA Greenhouse Gas Reporting Program (GHGRP) As of Reporting year 2023

Reported emissions over time

20M30M40M50M60M70M 2011201320152017201920212023 22.1M

NRG Energy annual reported GHG emissions, 2011–2023

Source: EPA Greenhouse Gas Reporting Program (GHGRP) As of Reporting year 2023

NRG Energy reported 22.1M MT CO₂e in 2023, compared with 59.9M MT in 2011 - a decline of 63.1% across the EPA GHGRP reporting record.

Facilities (14)

Facility Location Emissions (MT CO2e)
W A Parish
Power Plants
THOMPSONS, TX 10.1M
Limestone
Power Plants
JEWETT, TX 6.6M
Cedar Bayou
Power Plants
BAYTOWN, TX 1.7M
Powerton
Power Plants
PEKIN, IL 1.7M
T H Wharton
Power Plants
HOUSTON, TX 606K
San Jacinto Steam Electric Station
Power Plants
LA PORTE, TX 532K
Joliet 29
Power Plants
JOLIET, IL 417K
Gregory Power Facility
Power Plants
GREGORY, TX 246K
Greens Bayou
Power Plants
HOUSTON, TX 73K
Ivanpah Solar Electric Generating Facility
Power Plants
Nipton, CA 56K
Indian River
Power Plants
DAGSBORO, DE 30K
Astoria Gas Turbine Power
Power Plants
ASTORIA, NY 4K
Waukegan
Power Plants
WAUKEGAN, IL 2K
Joliet 9
Power Plants
JOLIET, IL 547

Frequently Asked Questions

How much greenhouse gas does NRG Energy emit?

NRG Energy reported 22.1M metric tons of CO2 equivalent (CO2e) in 2023, according to EPA Greenhouse Gas Reporting Program data covering 14 reporting facilities across 5 states.

How does NRG Energy rank among U.S. emitters?

NRG Energy is ranked #20 overall among all EPA GHGRP reporting companies and #11 within the Power Plants sector.

Is NRG Energy increasing or decreasing emissions?

Over 13 reporting years (2011–2023), NRG Energy's emissions have decreased by 63.1%. This suggests meaningful progress in emissions reduction.

How many facilities does NRG Energy operate?

NRG Energy has 14 facilities reporting to the EPA GHGRP across 5 states. Each facility emitting 25,000+ metric tons of CO2e per year is required to report.

What industry is NRG Energy in?

NRG Energy is classified in the Power Plants sector (NAICS code 221112). Industry classification is based on EPA reporting categories.

Where does this emissions data come from?

All data comes from the EPA Greenhouse Gas Reporting Program (GHGRP), which requires U.S. facilities emitting 25,000+ metric tons of CO2e annually to report. Data is self-reported by facilities and undergoes EPA verification.

Emissions guides & analysis

Source: EPA GHGRP EPA GHGRP Data is based on facility self-reporting. Not environmental compliance advice

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Greenhouse Gas Reporting Program (GHGRP). Consult a qualified professional before making decisions based on this data.

Every figure on PlainCarbon is rendered directly from EPA Greenhouse Gas Reporting Program (GHGRP) data, no number is typed in by an editor. This page draws directly on the EPA Greenhouse Gas Reporting Program (GHGRP), no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.