| State Rank | County | Net Generation (Past Year) | Power Plants |
|---|
| #15 | Adams County, PA | 6.2 TWh | 7 |
| #21 | Allegheny County, PA | 4.7 TWh | 22 |
| #18 | Armstrong County, PA | 5.4 TWh | 14 |
| #4 | Beaver County, PA | 16.4 TWh | 12 |
| #12 | Berks County, PA | 6.8 TWh | 12 |
| #31 | Blair County, PA | 669.4 GWh | 6 |
| #19 | Bradford County, PA | 5.2 TWh | 9 |
| #7 | Bucks County, PA | 9.3 TWh | 10 |
| #13 | Cambria County, PA | 6.7 TWh | 11 |
| #33 | Carbon County, PA | 407.6 GWh | 6 |
| #41 | Centre County, PA | 95.4 GWh | 6 |
| #51 | Chester County, PA | 6.7 GWh | 9 |
| #43 | Clarion County, PA | 62.2 GWh | 6 |
| #26 | Clearfield County, PA | 1.3 TWh | 13 |
| #42 | Cumberland County, PA | 65.9 GWh | 8 |
| #40 | Dauphin County, PA | 107.8 GWh | 6 |
| #6 | Delaware County, PA | 10.7 TWh | 7 |
| #37 | Elk County, PA | 145.0 GWh | 3 |
| #44 | Erie County, PA | 56.1 GWh | 7 |
| #17 | Fayette County, PA | 5.7 TWh | 8 |
| #50 | Forest County, PA | 18.9 GWh | 1 |
| #30 | Franklin County, PA | 972.7 GWh | 18 |
| #39 | Fulton County, PA | 125.5 GWh | 1 |
| #22 | Greene County, PA | 4.1 TWh | 4 |
| #45 | Huntingdon County, PA | 50.2 GWh | 2 |
| #10 | Indiana County, PA | 7.7 TWh | 4 |
| #49 | Juniata County, PA | 32.0 GWh | 3 |
| #9 | Lackawanna County, PA | 8.0 TWh | 6 |
| #25 | Lancaster County, PA | 1.5 TWh | 15 |
| #11 | Lawrence County, PA | 7.5 TWh | 3 |
| #23 | Lebanon County, PA | 4.0 TWh | 4 |
| #52 | Lehigh County, PA | 6.0 GWh | 5 |
| #2 | Luzerne County, PA | 27.0 TWh | 11 |
| #16 | Lycoming County, PA | 5.7 TWh | 11 |
| #54 | Mercer County, PA | 3.5 GWh | 2 |
| #53 | Monroe County, PA | 4.0 GWh | 2 |
| #3 | Montgomery County, PA | 19.8 TWh | 13 |
| #20 | Montour County, PA | 4.8 TWh | 3 |
| #5 | Northampton County, PA | 14.0 TWh | 11 |
| #38 | Northumberland County, PA | 128.9 GWh | 7 |
| #55 | Perry County, PA | 2.1 GWh | 1 |
| #27 | Philadelphia County, PA | 1.2 TWh | 17 |
| #34 | Potter County, PA | 290.0 GWh | 5 |
| #24 | Schuylkill County, PA | 1.7 TWh | 14 |
| #8 | Snyder County, PA | 8.3 TWh | 9 |
| #29 | Somerset County, PA | 1.1 TWh | 16 |
| #48 | Susquehanna County, PA | 32.4 GWh | 5 |
| #35 | Tioga County, PA | 269.7 GWh | 6 |
| #46 | Union County, PA | 46.0 GWh | 3 |
| #32 | Venango County, PA | 610.6 GWh | 3 |
| #47 | Washington County, PA | 36.4 GWh | 8 |
| #36 | Wayne County, PA | 167.8 GWh | 5 |
| #14 | Westmoreland County, PA | 6.4 TWh | 6 |
| #28 | Wyoming County, PA | 1.1 TWh | 4 |
| #1 | York County, PA | 35.5 TWh | 16 |
Net Generation data is based on the last 12 months since Jul 2026
