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WAL504

Galveston County, Texas · EIA plant ID 64792 · Operator: Walmart Stores Texas, LLC
Natural gasNatural Gas Internal Combustion EngineERCOTBA: ERCO
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Nameplate1MWSummer 1 MW
Generators3in service
Net generation1GWh12 mo to Dec 2025
Capacity factor5%gas/coal/oil units, summer MW
Heat rate10,002Btu/kWhfossil units, electric fuel, HHV
First online2022Runs as peaking

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
02040MWh202320242025

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%2%4%202220232024202520264.9% · 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.
7,50010,00012,50015,00017,5002022202320242025202610,002 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
202200.1%17,167
20230.32.5%16,447
20240.22.3%16,360
20250.54.9%10,002

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
GEN1Natural Gas Internal Combustion EngineIC0.40.4Jun 2022Operating—coming soon
GEN2Natural Gas Internal Combustion EngineIC0.40.4Jun 2022Operating—coming soon
GEN3Natural Gas Internal Combustion EngineIC0.40.4Jun 2022Operating—coming soon

Owner / operator

Operator: Walmart Stores Texas, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Walmart Stores Texas, LLC100.0%1 MW

Nearby plants

Within 80 km.
Air Products Texas City65 MW14.5 km
Power Station 4191 MW15.2 km
Green Power 2861 MW15.9 km
Texas City Plant Union Carbide26 MW16.5 km
Texas City Power Plant450 MW16.6 km
GCWA7 MW17.3 km