Power plants in Allegheny County, Pennsylvania
9 operating power plants in Allegheny County, Pennsylvania, with 1,126 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
9
Nameplate capacity
1,126 MW
Net generation, 2025
5.36 TWh
8 of 9 plants reported
Largest power plants in Allegheny County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Allegheny Energy Units 3 4 & 5Natural gas | 556 | 4,408 | 90.5% |
| 2 | Brunot IslandNatural gas | 365 | 44.7 | 1.4% |
| 3 | Springdale 1 & 2Natural gas | 88 | 147 | 19.2% |
| 4 | Mon Valley WorksNatural gas | 53 | 483 | 105.1% |
| 5 | Clairton WorksNatural gas | 31 | 124 | 45.7% |
| 6 | Pittsburgh Airport Gas PlantNatural gas | 22 | 118 | 61.2% |
| 7 | ECP Uptown CampusNatural gas | 5.6 | 29.5 | 60.2% |
| 8 | PG Solar 1Solar | 3.0 | 4.2 | 16.0% |
| 9 | Ohara CSG 1 LLCSolar | 3.0 | – | – |
MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources
More power plant lists for Pennsylvania
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Other counties in Pennsylvania
Lancaster County15 plants · 1,815 MWFranklin County14 plants · 518 MWSomerset County13 plants · 443 MWPhiladelphia County12 plants · 559 MWYork County11 plants · 6,218 MWBerks County9 plants · 1,326 MWCambria County9 plants · 1,462 MWNorthampton County9 plants · 3,852 MWBeaver County8 plants · 2,218 MW