W A Parish
Coal and natural gas power plant in Fort Bend County, Texas. 4,008.4 MW of nameplate capacity across 9 generators, operated by NRG Texas Power LLC.
Also known as W. A. Parish Electric Generating Station · W.A. Parish · WA Parish · EIA plant 3470
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 4,008.4 MWCoal 2,736.8 · Natural gas 1,271.6
- Generators
- 9 operatingEIA-860M, August 2026
- Operating since
- June 1958First generator online
- Operator
- NRG Texas Power LLCEIA operator ID 54888
- Grid
- ERCOTBalancing authority ERCO
- Price nodes
- 9 ERCOT nodesResource nodes with prices
- Location
- Fort Bend County, TX29.4828, −95.6311
- EIA plant ID
- 3470EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power W A Parish produces
Free · EIA-923Net generation, 2025
15.6 TWh
15,578,685 MWh, final
Capacity factor, 2025
44.4%
2024: 34.6%
January to July 2026
6.96 TWh
Provisional
Range, 2015 to 2025
10.7–16.2
TWh a year. Low 2023, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 18,179,532 | Not reported | 12 of 12 |
| 2001 | 17,078,016 | Not reported | 12 of 12 |
| 2002 | 20,026,008 | Not reported | 12 of 12 |
| 2003 | 17,290,956 | Not reported | 11 of 12 |
| 2004 | 19,144,166 | Not reported | 12 of 12 |
| 2005 | 19,688,219 | Not reported | 12 of 12 |
| 2006 | 20,178,794 | Not reported | 12 of 12 |
| 2007 | 20,068,090 | Not reported | 12 of 12 |
| 2008 | 19,748,378 | Not reported | 12 of 12 |
| 2009 | 18,971,846 | Not reported | 12 of 12 |
| 2010 | 17,492,354 | 49.8% | 12 of 12 |
| 2011 | 17,970,020 | 51.2% | 12 of 12 |
| 2012 | 14,375,411 | 40.8% | 12 of 12 |
| 2013 | 15,803,692 | 45.0% | 12 of 12 |
| 2014 | 16,130,285 | 45.9% | 12 of 12 |
| 2015 | 15,808,755 | 45.0% | 12 of 12 |
| 2016 | 13,299,863 | 37.8% | 12 of 12 |
| 2017 | 16,206,605 | 46.2% | 12 of 12 |
| 2018 | 15,850,521 | 45.1% | 12 of 12 |
| 2019 | 14,328,218 | 40.8% | 12 of 12 |
| 2020 | 10,810,190 | 30.7% | 12 of 12 |
| 2021 | 14,816,763 | 42.2% | 12 of 12 |
| 2022 | 13,122,023 | 37.4% | 12 of 12 |
| 2023 | 10,743,262 | 30.6% | 12 of 12 |
| 2024 | 12,165,789 | 34.6% | 12 of 12 |
| 2025 | 15,578,685 | 44.4% | 12 of 12 |
| 2026 (provisional, partial year) | 6,963,099 | 34.1% | 7 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
15.59M
US short tons. 2024: 11.77M
SO₂, 2025
35,965
US short tons
NOx, 2025
9,129
US short tons
CO₂ per MWh, calculated
1.00 t
About 2,002 lb per MWh
8 of 8 EPA units reported CO₂ in 2025 (WAP1, WAP2, WAP3, WAP4, WAP5, WAP6, WAP7, WAP8), matched to EIA plant 3470 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
463,507
million gallons
Consumption, 2024
3,537
million gallons
Source
Smithers Lake
Surface, Fresh. Once-through with cooling pond
Watershed stress
High · 0.715
USGS SUI, HUC12 Dry Creek-Rabbs Bayou
96 of 96 cooling months report withdrawal. SUI of the HUC12 containing the plant. Cooling-pond plants report water circulated through the pond as withdrawal, so withdrawal is far above consumption. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Natural Gas Steam Turbine | 187.8 | June 1958 |
| 2 | Natural Gas Steam Turbine | 187.8 | December 1958 |
| 3 | Natural Gas Steam Turbine | 299.2 | March 1961 |
| 4 | Natural Gas Steam Turbine | 580.5 | June 1968 |
| 5 | Conventional Steam Coal | 734.1 | December 1977 |
| 6 | Conventional Steam Coal | 734.1 | December 1978 |
| 7 | Conventional Steam Coal | 614.6 | June 1980 |
| 8 | Conventional Steam Coal | 654.0 | December 1982 |
| GT1 | Natural Gas Fired Combustion Turbine | 16.3 | July 1967 |
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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Questions about W A Parish
How much power does W A Parish produce?
W A Parish reported 15,578,685 MWh (15.6 TWh) of net generation in 2025, a 44.4% capacity factor on 4,008.4 MW of nameplate capacity. From January to July 2026 it reported 6.96 TWh, which is provisional.
Where is W A Parish?
W A Parish is in Fort Bend County, Texas, at 29.4828, −95.6311. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).
Who operates W A Parish?
EIA-860M for August 2026 lists NRG Texas Power LLC as the operator (EIA operator ID 54888). The operator is not always the owner.
Is W A Parish a coal or a natural gas plant?
Both. Coal capacity totals 2,736.8 MW and natural gas capacity totals 1,271.6 MW.
When did W A Parish start operating?
Its first generator began operating in June 1958, according to EIA-860M.
Does InfraMap have power prices for W A Parish?
Yes. InfraMap has ERCOT day-ahead and real-time prices at 9 price nodes linked to W A Parish, 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
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page