Directory of Power Plants in Pennsylvania
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Mon Valley Works | United States Steel-Mon Valley | Dravosburg, PA | PJM Interconnection, LLC (PJM) | 473.7 GWh | May 1943 | Dec 2023 | Blast Furnace Gas : 82.2% Other Gas : 17.8% |
| Mehoopany Wind Energy LLC | AE Power Services LLC | Noxen, PA | PJM Interconnection, LLC (PJM) | 265.0 GWh | Nov 2012 | Dec 2024 | Wind |
| Mifflinburg PA BTM | American Mun Power-Ohio, Inc | Mifflinburg, PA | PJM Interconnection, LLC (PJM) | 255.0 MWh | May 2024 | Dec 2024 | Distillate Fuel Oil |
| Mid-River PA, LLC (ABE4) | Greenbacker Renewable Energy Corporation | Easton, PA | PJM Interconnection, LLC (PJM) | 4.2 GWh | Aug 2020 | Dec 2024 | Solar |
| Mount Joy Wire | Mount Joy Wire Corp | Mount Joy, PA | PJM Interconnection, LLC (PJM) | 641.9 MWh | Nov 2011 | Dec 2024 | Natural Gas |
| Merck - Upper Gwynedd Solar Array | Merck - Upper Gwynedd Solar Array | North Wales, PA | PJM Interconnection, LLC (PJM) | 1.6 GWh | Dec 2010 | Dec 2024 | Solar |
| Morgantown | Energy Developments, Inc d/b/a EDL | Morgantown, PA | PJM Interconnection, LLC (PJM) | 6.3 GWh | Apr 2016 | Dec 2024 | Landfill Gas |
| Marlboro Mushrooms Solar Field | Marlboro Mushroom | West Grove, PA | PJM Interconnection, LLC (PJM) | 1.3 GWh | Oct 2011 | Dec 2024 | Solar |
| Milan | Milan Energy LLC | Milan, PA | PJM Interconnection, LLC (PJM) | 38.7 GWh | Feb 2017 | Dec 2024 | Natural Gas |
| Mahoning Creek Hydroelectric Project | Eagle Creek Renewable Energy, LLC | New Bethlehem, PA | PJM Interconnection, LLC (PJM) | 12.0 GWh | Nov 2013 | Dec 2024 | Water |
| Martin Limestone Solar Array | Sunstream Energy LLC | New Holland, PA | PJM Interconnection, LLC (PJM) | 1.5 GWh | Nov 2012 | Dec 2024 | Solar |
| Mountain | Mountain Power, LLC | Mount Holly Springs, PA | PJM Interconnection, LLC (PJM) | 3.6 GWh | May 1972 | Dec 2024 | Distillate Fuel Oil |
| Masser Farms Realty Solar | Masser Farms Realty Ltd | Sacramento, PA | PJM Interconnection, LLC (PJM) | 1.2 GWh | Apr 2011 | Dec 2024 | Solar |
| Morgantown Solar Park | The Hankin Group | Morgantown, PA | PJM Interconnection, LLC (PJM) | 1.9 GWh | Oct 2011 | Dec 2024 | Solar |
| MF Mesa Lane LLC | MF Mesa Lane LLC | Morrisville, PA | PJM Interconnection, LLC (PJM) | 3.4 GWh | Oct 2008 | Dec 2024 | Solar |
| Mountain View | Industrial Power Generating Company LLC | Greencastle, PA | PJM Interconnection, LLC (PJM) | 25.6 GWh | Feb 2003 | Dec 2024 | Landfill Gas : 95.5% Distillate Fuel Oil : 4.5% |
| Moser Generating Station | Constellation Power, Inc | Pottstown, PA | PJM Interconnection, LLC (PJM) | 187.0 MWh | Apr 1970 | Dec 2024 | Distillate Fuel Oil |
| Moxie Freedom Generation Plant | Moxie Freedom LLC | Salem Township, PA | PJM Interconnection, LLC (PJM) | 7.9 TWh | Jul 2018 | Apr 2025 | Natural Gas |
| Meyersdale Windpower, LLC | Sequitur Renewables, LLC | Meyersdale, PA | PJM Interconnection, LLC (PJM) | 35.5 GWh | Nov 2003 | Apr 2025 | Wind |
| Mill Run Windpower LLC | Sequitur Renewables, LLC | Mill Run, PA | PJM Interconnection, LLC (PJM) | 19.5 GWh | Nov 2001 | Apr 2025 | Wind |
| Marcus Hook Energy LP | Marcus Hook Energy LP | Marcus Hook, PA | PJM Interconnection, LLC (PJM) | 6.7 TWh | Nov 2004 | Apr 2025 | Natural Gas |
Browse Power Plants By Pennsylvania Counties
Figures are based on April 2025 generation numbers.| County | State Rank | Active Plants | Apr 2025 Generation |
|---|---|---|---|
| York County, PA | # 1 | 13 | 35.9 TWh |
| Luzerne County, PA | # 2 | 10 | 28.4 TWh |
| Montgomery County, PA | # 3 | 13 | 20.4 TWh |
| Beaver County, PA | # 4 | 12 | 16.5 TWh |
| Northampton County, PA | # 5 | 11 | 13.4 TWh |
| Delaware County, PA | # 6 | 7 | 11.5 TWh |
| Lackawanna County, PA | # 7 | 5 | 9.8 TWh |
| Cambria County, PA | # 8 | 11 | 9.4 TWh |
| Bucks County, PA | # 9 | 10 | 8.0 TWh |
| Berks County, PA | # 10 | 12 | 7.6 TWh |
| Snyder County, PA | # 11 | 4 | 7.5 TWh |
| Westmoreland County, PA | # 12 | 4 | 7.2 TWh |
| Lawrence County, PA | # 13 | 3 | 6.6 TWh |
| Lycoming County, PA | # 14 | 8 | 6.6 TWh |
| Adams County, PA | # 15 | 7 | 6.3 TWh |
| Indiana County, PA | # 16 | 4 | 6.0 TWh |
| Bradford County, PA | # 17 | 9 | 5.8 TWh |
| Armstrong County, PA | # 18 | 8 | 5.0 TWh |
| Greene County, PA | # 19 | 4 | 5.0 TWh |
| Lebanon County, PA | # 20 | 4 | 4.9 TWh |
| Allegheny County, PA | # 21 | 18 | 4.9 TWh |
| Fayette County, PA | # 22 | 8 | 4.9 TWh |
| Montour County, PA | # 23 | 2 | 3.7 TWh |
| Lancaster County, PA | # 24 | 15 | 1.8 TWh |
| Schuylkill County, PA | # 25 | 14 | 1.7 TWh |
| Clearfield County, PA | # 26 | 7 | 1.4 TWh |
| County | State Rank | Active Plants | Apr 2025 Generation |
|---|---|---|---|
| Philadelphia County, PA | # 27 | 16 | 1.2 TWh |
| Wyoming County, PA | # 28 | 4 | 918.1 GWh |
| Somerset County, PA | # 29 | 16 | 821.4 GWh |
| Blair County, PA | # 30 | 6 | 666.2 GWh |
| Franklin County, PA | # 31 | 14 | 649.9 GWh |
| Carbon County, PA | # 32 | 6 | 505.4 GWh |
| Venango County, PA | # 33 | 3 | 371.9 GWh |
| Potter County, PA | # 34 | 3 | 277.3 GWh |
| Tioga County, PA | # 35 | 6 | 237.6 GWh |
| Wayne County, PA | # 36 | 4 | 180.4 GWh |
| Dauphin County, PA | # 37 | 5 | 107.7 GWh |
| Fulton County, PA | # 38 | 1 | 94.9 GWh |
| Centre County, PA | # 39 | 5 | 91.6 GWh |
| Northumberland County, PA | # 40 | 6 | 84.3 GWh |
| Huntingdon County, PA | # 41 | 2 | 69.2 GWh |
| Clarion County, PA | # 42 | 4 | 61.4 GWh |
| Cumberland County, PA | # 43 | 7 | 57.8 GWh |
| Union County, PA | # 44 | 3 | 45.7 GWh |
| Elk County, PA | # 45 | 1 | 40.6 GWh |
| Washington County, PA | # 46 | 8 | 38.5 GWh |
| Erie County, PA | # 47 | 6 | 37.9 GWh |
| Juniata County, PA | # 48 | 1 | 33.8 GWh |
| Susquehanna County, PA | # 49 | 5 | 29.9 GWh |
| Chester County, PA | # 50 | 9 | 6.2 GWh |
| Mercer County, PA | # 51 | 1 | 5.7 GWh |
| Monroe County, PA | # 52 | 2 | 2.9 GWh |