Tenaska Westmoreland Generating Station
Westmoreland County, Pennsylvania · EIA plant ID 60464 · Operator: Tenaska Pennsylvania Partners, LLC
Nameplate1,134MWSummer 947 MW
Generators3in service
Net generation6,387GWh12 mo to Aug 2026
Capacity factor77%gas/coal/oil units, summer MW
Heat rate6,570Btu/kWhfossil units, electric fuel, HHV
First online2018Runs 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
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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2018 | 145.9 | 20.8% | 6,564 |
| 2019 | 5,161.3 | 62.4% | 6,651 |
| 2020 | 6,270.3 | 75.4% | 6,708 |
| 2021 | 7,115.8 | 85.8% | 6,566 |
| 2022 | 6,998.6 | 84.4% | 6,547 |
| 2023 | 6,660.5 | 80.3% | 6,594 |
| 2024 | 7,068.5 | 85.0% | 6,557 |
| 2025 | 6,298.3 | 75.9% | 6,497 |
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 |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 370 | 288 | Dec 2018 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 370 | 288 | Dec 2018 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 394 | 371 | Dec 2018 | Operating | — | coming soon |
Owner / operator
Operator: Tenaska Pennsylvania Partners, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| DGC Westmoreland, LLC | 50.0% | 567 MW |
| J-POWER Westmoreland, LLC | 25.0% | 284 MW |
| Tenaska Pennsylvania Holdings, LLC | 24.8% | 281 MW |
| Tenaska Pennsylvania I, LLC | 0.3% | 3 MW |
Nearby plants
Within 80 km.
| Hunker Solar River, LLC | 3 MW | 6.2 km |
| Monongahela L&D4 Hydroelectric Project | — | 17.7 km |
| Clairton Works | 31 MW | 21.7 km |
| Pechin Solar | 14 MW | 24.2 km |
| Braddock Lock and Dam | — | 27.5 km |
| Mon Valley Works | 53 MW | 27.7 km |