Tenaska Westmoreland Generating Station
Natural gas power plant · Westmoreland County, Pennsylvania
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Tenaska Pennsylvania Partners, LLC
- County
- Westmoreland County
- Generating units
- 3
- Share of state capacity
- 2.14%
- Rank among natural gas plants in Pennsylvania
- #10 of 72
- EIA plant code
- 60464
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| STG1 | Natural Gas Fired Combined Cycle | 394 MW | 371 MW | 2018 | Operating |
| CTG1 | Natural Gas Fired Combined Cycle | 370 MW | 288 MW | 2018 | Operating |
| CTG2 | Natural Gas Fired Combined Cycle | 370 MW | 288 MW | 2018 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Pennsylvania
| Hummel Station LLC | Natural gas | 1,194 MW |
| Bethlehem Power Plant | Natural gas | 1,153 MW |
| Moxie Freedom Generation Plant | Natural gas | 1,105 MW |
| Muddy Run | Hydro | 1,072 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1,134 MW solar plant and a 1,134 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Pennsylvania power plants · What Pennsylvania actually generates