Greens Bayou
Natural gas power plant in Harris County, Texas. 432 MW of nameplate capacity across 6 generators, operated by NRG Texas Power LLC.
Also known as Greens Bayou Electric Generating Station · EIA plant 3464
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 432 MWNameplate
- Generators
- 6 operatingEIA-860M, August 2026
- Operating since
- December 1976First generator online
- Operator
- NRG Texas Power LLCEIA operator ID 54888
- Grid
- ERCOTBalancing authority ERCO
- Price nodes
- 1 ERCOT nodeResource nodes with prices
- Location
- Harris County, TX29.8222, −95.2194
- EIA plant ID
- 3464EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Greens Bayou produces
Free · EIA-923Net generation, 2025
17.6 GWh
17,563 MWh, final
Capacity factor, 2025
0.5%
2024: 1.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2016 to 2025
6.0–213.3
GWh a year. Low 2017, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 894,223 | Not reported | 12 of 12 |
| 2001 | 630,655 | Not reported | 12 of 12 |
| 2002 | 277,313 | Not reported | 12 of 12 |
| 2003 | 293,690 | Not reported | 12 of 12 |
| 2004 | 197,667 | Not reported | 12 of 12 |
| 2005 | 167,618 | Not reported | 12 of 12 |
| 2006 | 299,168 | Not reported | 12 of 12 |
| 2007 | 17,126 | Not reported | 1 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | 154,724 | Not reported | 12 of 12 |
| 2010 | 184,858 | 2.4% | 12 of 12 |
| 2011 | 352,799 | 4.6% | 12 of 12 |
| 2012 | 92,055 | 1.2% | 12 of 12 |
| 2013 | 65,092 | 0.8% | 12 of 12 |
| 2014 | 80,024 | 1.0% | 12 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | 15,939 | 0.2% | 12 of 12 |
| 2017 | 6,007 | 0.1% | 12 of 12 |
| 2018 | 3,729 | 0.6% | 1 of 12 |
| 2019 | 158,574 | 4.2% | 12 of 12 |
| 2020 | 110,857 | 2.9% | 12 of 12 |
| 2021 | 213,273 | 5.6% | 12 of 12 |
| 2022 | 211,854 | 5.6% | 12 of 12 |
| 2023 | 92,290 | 2.4% | 12 of 12 |
| 2024 | 37,072 | 1.0% | 12 of 12 |
| 2025 | 17,563 | 0.5% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ERCOTEmissions
Free · EPA CAMPDCO₂, 2025
Not reported
US short tons. 2024: Not reported
SO₂, 2025
Not reported
US short tons
NOx, 2025
28
US short tons
0 of 6 EPA units reported CO₂ in 2025 (GBY5, GBY73, GBY74, GBY81, GBY82, GBY83, GBY84), matched to EIA plant 3464 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 73 | Natural Gas Fired Combustion Turbine | 72.0 | December 1976 |
| 74 | Natural Gas Fired Combustion Turbine | 72.0 | December 1976 |
| 81 | Natural Gas Fired Combustion Turbine | 72.0 | December 1976 |
| 82 | Natural Gas Fired Combustion Turbine | 72.0 | December 1976 |
| 83 | Natural Gas Fired Combustion Turbine | 72.0 | December 1976 |
| 84 | Natural Gas Fired Combustion Turbine | 72.0 | December 1976 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists NRG Texas Power LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Greens Bayou
More plants operated by NRG Texas Power LLC
Questions about Greens Bayou
How much power does Greens Bayou produce?
Greens Bayou reported 17,563 MWh (17.6 GWh) of net generation in 2025, a 0.5% capacity factor on 432 MW of nameplate capacity.
Where is Greens Bayou?
Greens Bayou is in Harris County, Texas, at 29.8222, −95.2194. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).
Who operates Greens Bayou?
EIA-860M for August 2026 lists NRG Texas Power LLC as the operator (EIA operator ID 54888). The operator is not always the owner.
When did Greens Bayou start operating?
Its first generator began operating in December 1976, according to EIA-860M.
Does InfraMap have power prices for Greens Bayou?
Yes. InfraMap has ERCOT day-ahead and real-time prices at 1 price node linked to Greens Bayou, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- ERCOT day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page