NRG THW GT Electric Generating Station
Harris County, Texas · EIA plant ID 66601 · Operator: NRG THW GT LLC
Nameplate377MWSummer 408 MW
Generators2in service
Net generation88GWh12 mo to Aug 2026
Capacity factor7%gas/coal/oil units, summer MW
Heat rate11,570Btu/kWhfossil units, electric fuel, HHV
First online2026Runs as peaking
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
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.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
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 ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GT61 | Natural Gas Fired Combustion Turbine | GT | 188.7 | 204 | May 2026 | Operating | — | coming soon |
| GT62 | Natural Gas Fired Combustion Turbine | GT | 188.7 | 204 | May 2026 | Operating | — | coming soon |
Owner / operator
Operator: NRG THW GT LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| NRG THW GT LLC | 100.0% | 377 MW |
Nearby plants
Within 80 km.
| T H Wharton | 1,190 MW | 0.3 km |
| Cutten | 9 MW | 1.5 km |
| HEB00099 | 1 MW | 7.2 km |
| WAL3297 | 1 MW | 7.4 km |
| WAL1103 | 1 MW | 7.4 km |
| Regis Gears Harris | 10 MW | 8.8 km |