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W A Parish

Fort Bend County, Texas · EIA plant ID 3470 · Operator: NRG Texas Power LLC
CoalConventional Steam CoalNatural Gas Fired Combustion TurbineNatural Gas Steam TurbineERCOTBA: ERCO
Nameplate4,008MWSummer 3,632 MW
Generators9in service
Net generation13,652GWh12 mo to Aug 2026
Capacity factor43%gas/coal/oil units, summer MW
Heat rate11,307Btu/kWhfossil units, electric fuel, HHV
First online1958Runs as baseload

The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
05001,0001,5002,000GWh2001200320052007200920112013201520172019202120232025

Capacity factor by year

Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
0%20%40%60%2005201020152020202542.9% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
10,00010,50011,00011,5002005201020152020202511,307 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
200117,078——
200220,026——
200318,835.658.9%10,443
200419,144.259.7%10,409
200519,688.261.5%10,464
200620,178.862.6%10,407
200720,068.162.7%10,612
200819,748.461.3%10,336
200918,971.859.1%10,433
201017,492.454.5%10,624
201117,97055.8%10,537
201214,375.444.5%10,589
201315,803.749.1%10,558
201416,130.350.1%10,545
201515,808.849.1%10,522
201613,299.941.2%10,630
201716,206.650.3%10,379
201815,850.549.2%10,377
201914,328.244.3%10,722
202010,810.233.4%11,253
202114,816.845.8%10,981
202213,12240.6%11,228
202310,743.333.5%11,682
202412,165.838.1%11,573
202515,578.749.0%11,308

Generators

EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
Gen IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
1Natural Gas Steam TurbineST187.8169Jun 1958Operating—coming soon
2Natural Gas Steam TurbineST187.8169Dec 1958Operating—coming soon
3Natural Gas Steam TurbineST299.2240Mar 1961Operating—coming soon
4Natural Gas Steam TurbineST580.5527Jun 1968Operating—coming soon
5Conventional Steam CoalST734.1664Dec 1977Operating—coming soon
6Conventional Steam CoalST734.1663Dec 1978Operating—coming soon
7Conventional Steam CoalST614.6577Jun 1980Operating—coming soon
8Conventional Steam CoalST654610Dec 1982Operating—coming soon
GT1Natural Gas Fired Combustion TurbineGT16.313Jul 1967Operating—coming soon

Owner / operator

Operator: NRG Texas Power LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
NRG Texas Power LLC100.0%4,008 MW

Nearby plants

Within 80 km.
W.A. Parish Carbon Capture Plant82 MW0.9 km
Bypass BESS200 MW0.9 km
Crowned Heron 2 - Storage, LLC150 MW1.1 km
Braes Bayou Plant484 MW1.1 km
Crowned Heron 1 - Storage, LLC150 MW1.2 km
Jack Fusco Energy Center676 MW1.3 km