Directory of Power Plants in Pennsylvania
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Jordan Energy-DFA Middlebury Center Plan | Distributed Solar Development, LLC | Middlebury Center, PA | PJM Interconnection, LLC (PJM) | 1.6 GWh | Nov 2021 | Dec 2023 | Solar |
| Great Cove Solar | AES Distributed Energy | McConnellsburg, PA | PJM Interconnection, LLC (PJM) | 37.9 GWh | Nov 2023 | Jun 2024 | Solar |
| ER Bison Solar CSG | Greenbacker Renewable Energy Corporation | Lewisburg, PA | PJM Interconnection, LLC (PJM) | 2.2 GWh | Dec 2022 | Dec 2023 | Solar |
| Towanda Facility | REV LNG SSL BC, LLC | Wyalusing, PA | PJM Interconnection, LLC (PJM) | 16.9 GWh | Dec 2020 | Dec 2023 | Natural Gas |
| Perkasie PA BTM | American Mun Power-Ohio, Inc | Perkasie, PA | PJM Interconnection, LLC (PJM) | 117.6 MWh | Mar 2022 | Dec 2023 | Distillate Fuel Oil |
| Weatherly(PA) RTO BTM | American Mun Power-Ohio, Inc | Weatherly, PA | PJM Interconnection, LLC (PJM) | 42.0 MWh | May 2023 | Dec 2023 | Distillate Fuel Oil |
| Blakely (PA) RTO BTM | American Mun Power-Ohio, Inc | Peckville, PA | PJM Interconnection, LLC (PJM) | 190.0 MWh | Nov 2022 | Dec 2023 | Distillate Fuel Oil |
| Ephrata PA BTM | American Mun Power-Ohio, Inc | Lancaster, PA | PJM Interconnection, LLC (PJM) | 84.0 MWh | Oct 2021 | Dec 2023 | Distillate Fuel Oil |
| Girard (PA) RTO BTM | American Mun Power-Ohio, Inc | Girard, PA | PJM Interconnection, LLC (PJM) | 89.4 MWh | Feb 2022 | Dec 2023 | Distillate Fuel Oil |
| Quakertown PA BTM | American Mun Power-Ohio, Inc | Quakertown, PA | PJM Interconnection, LLC (PJM) | 12.0 MWh | Oct 2023 | Dec 2023 | Distillate Fuel Oil |
| Schuylkill Haven PA BTM | American Mun Power-Ohio, Inc | Schuylkill Haven, PA | PJM Interconnection, LLC (PJM) | 124.0 MWh | May 2023 | Dec 2023 | Distillate Fuel Oil |
| Hatfield PA BTM | American Mun Power-Ohio, Inc | Hatfield, PA | PJM Interconnection, LLC (PJM) | 85.0 MWh | Nov 2022 | Dec 2023 | Distillate Fuel Oil |
| Adams Solar LLC PA | Adams Solar LLC (PA) | Gettysburg, PA | PJM Interconnection, LLC (PJM) | 72.4 GWh | Nov 2023 | Jun 2024 | Solar |
| Sandy Ridge Wind 2, LLC | Algonquin Power Co | Tyrone, PA | PJM Interconnection, LLC (PJM) | 188.0 GWh | Aug 2023 | Jun 2024 | Wind |
| Pine 1 Solar | BE-Pine1 LLC | Hookstown, PA | PJM Interconnection, LLC (PJM) | 623.0 MWh | Oct 2023 | Dec 2023 | Solar |
| Pine 2 Solar | BE-Pine2 LLC | Hookstown, PA | PJM Interconnection, LLC (PJM) | 978.0 MWh | Oct 2023 | Dec 2023 | Solar |
| Great Cove Solar II | AES Clean Energy | Saint Thomas, PA | PJM Interconnection, LLC (PJM) | 30.1 GWh | Nov 2023 | Jun 2024 | Solar |
| ECP Uptown Campus | ECP Uptown Campus LLC | Pittsburgh, PA | PJM Interconnection, LLC (PJM) | 27.2 GWh | Oct 1997 | Dec 2023 | Natural Gas |
| Marlboro Mushrooms Solar Field | Marlboro Mushroom | West Grove, PA | PJM Interconnection, LLC (PJM) | 771.9 MWh | Oct 2011 | Dec 2023 | Solar |
| Spring House | Janssen Pharmaceutical Co | Spring House, PA | PJM Interconnection, LLC (PJM) | 9.4 GWh | Mar 2013 | Dec 2023 | Natural Gas |
| Shell Chemical Appalachia LLC | Shell Chemical Appalachia LLC | Monaca, PA | PJM Interconnection, LLC (PJM) | 1.7 TWh | Jun 2021 | Jun 2024 | Natural Gas |
| Temple SEGF | Temple University | Philadelphia, PA | PJM Interconnection, LLC (PJM) | 962.0 MWh | Apr 1993 | Jun 2024 | Natural Gas |
| Milan | Milan Energy LLC | Milan, PA | PJM Interconnection, LLC (PJM) | 52.2 GWh | Feb 2017 | Dec 2022 | Natural Gas |
| Alpaca | Alpaca Energy LLC | Canton Township, PA | PJM Interconnection, LLC (PJM) | 49.3 GWh | Mar 2017 | Dec 2022 | Natural Gas |
| Beaver Dam | Beaver Dam Energy LLC | Canton Township, PA | PJM Interconnection, LLC (PJM) | 64.3 GWh | May 2016 | Dec 2022 | Natural Gas |
| Tenaska Westmoreland Generating Station | Tenaska Pennsylvania Partners, LLC | Smithton, PA | PJM Interconnection, LLC (PJM) | 7.4 TWh | Nov 2018 | Jun 2024 | Natural Gas |
| Wolf Run Energy | Wolf Run Energy LLC | Wilmot Township, PA | PJM Interconnection, LLC (PJM) | 57.8 GWh | May 2019 | Dec 2022 | Natural Gas |
| Ringer Hill Wind Farm, LLC | Ringer Hill Wind LLC | Salisbury, PA | PJM Interconnection, LLC (PJM) | 103.1 GWh | Nov 2016 | Jun 2024 | Wind |
| Moxie Freedom Generation Plant | Moxie Freedom LLC | Salem Township, PA | PJM Interconnection, LLC (PJM) | 8.3 TWh | Jul 2018 | Jun 2024 | Natural Gas |
| Glades Pike Generation Plant | State Correctnl Inst Laurel Highlands | Somerset, PA | PJM Interconnection, LLC (PJM) | 11.9 GWh | Sep 2011 | Dec 2023 | Landfill Gas |
| Lackawanna Energy Center | Invenergy Services LLC | Jessup, PA | PJM Interconnection, LLC (PJM) | 11.3 TWh | Feb 2018 | Jun 2024 | Natural Gas |
| Big Level Wind | Big Level Wind LLC | Hector Township, PA | PJM Interconnection, LLC (PJM) | 275.5 GWh | Nov 2019 | Jun 2024 | Wind |
| CPV Fairview Energy Center | CPV Fairview, LLC | Johnstown, PA | PJM Interconnection, LLC (PJM) | 7.6 TWh | Nov 2019 | Jun 2024 | Natural Gas |
| Temple Solar Arrays | UGI Energy Services, LLC | Reading, PA | PJM Interconnection, LLC (PJM) | 2.9 GWh | Apr 2011 | Jun 2024 | Solar |
| Elizabethtown Solar | AES Distributed Energy | Elizabethtown, PA | PJM Interconnection, LLC (PJM) | 3.0 GWh | Jan 2016 | Dec 2023 | Solar |
| Hickory Run Energy Station | Hickory Run Energy, LLC | New Castle, PA | PJM Interconnection, LLC (PJM) | 6.5 TWh | Apr 2020 | Jun 2024 | Natural Gas |
| Birdsboro Power | Birdsboro Power LLC | Birdsboro, PA | PJM Interconnection, LLC (PJM) | 3.9 TWh | Apr 2019 | Jun 2024 | Natural Gas |
| Merck - Upper Gwynedd Solar Array | Merck - Upper Gwynedd Solar Array | North Wales, PA | PJM Interconnection, LLC (PJM) | 1.9 GWh | Dec 2010 | Dec 2023 | Solar |
| Roundtop | Roundtop Energy LLC | Meshoppen, PA | PJM Interconnection, LLC (PJM) | 50.2 GWh | Sep 2015 | Dec 2022 | Natural Gas |
| PA Solar Park II | Consolidated Edison Development Inc. | Nesquehoning, PA | PJM Interconnection, LLC (PJM) | 13.0 GWh | Dec 2019 | Dec 2023 | Solar |
| Hunker Solar River, LLC | SolRiver Capital LLC | Ruffs Dale, PA | PJM Interconnection, LLC (PJM) | 3.8 GWh | Jul 2021 | Dec 2023 | Solar |
| Elk Hill Solar 2 | Lightsource Renewable Energy Asset Management, LLC | Peters Township, PA | PJM Interconnection, LLC (PJM) | 29.0 GWh | Nov 2020 | Dec 2023 | Solar |
| Elk Hill Solar 1 | Lightsource Renewable Energy Asset Management, LLC | Mercersburg, PA | PJM Interconnection, LLC (PJM) | 38.6 GWh | Nov 2022 | Dec 2023 | Solar |
| Mid-River PA, LLC (ABE4) | Greenbacker Renewable Energy Corporation | Easton, PA | PJM Interconnection, LLC (PJM) | 4.7 GWh | Aug 2020 | Dec 2023 | Solar |
| CL-Viaduct LLC | BCD Project Holdings 1, LLC | Bloom Township, PA | PJM Interconnection, LLC (PJM) | 22.8 GWh | Feb 2023 | Nov 2023 | Solar |
| UN-School House LLC | BCD Project Holdings 1, LLC | Morris Township, PA | PJM Interconnection, LLC (PJM) | 31.0 GWh | Dec 2022 | Dec 2023 | Solar |
| Pittsburgh Airport Gas Plant | IMG Energy Solutions | Coraopolis, PA | PJM Interconnection, LLC (PJM) | 128.5 GWh | Jun 2021 | Dec 2023 | Natural Gas |
| PG Solar 1 | IMG Energy Solutions | Findlay Township, PA | PJM Interconnection, LLC (PJM) | 4.7 GWh | Jun 2021 | Dec 2023 | Solar |
| Gaucho Solar | Vesper Energy Development LLC | Clinton, PA | PJM Interconnection, LLC (PJM) | 16.2 GWh | May 2023 | Dec 2023 | Solar |
| CPV Maple Hill Solar | CPV Maple Hill Solar, LLC | Portage, PA | PJM Interconnection, LLC (PJM) | 98.5 GWh | Oct 2023 | Jun 2024 | Solar |
| Crayola Solar Project | UGI Development Co | Easton, PA | PJM Interconnection, LLC (PJM) | 2.9 GWh | Apr 2010 | Jun 2024 | Solar |
| Trexlertown Solar Array North and South | Trexlertown Solar Array North and South | Allentown, PA | PJM Interconnection, LLC (PJM) | 2.0 GWh | May 2011 | Dec 2022 | Solar |
| Masser Farms Realty Solar | Masser Farms Realty Ltd | Sacramento, PA | PJM Interconnection, LLC (PJM) | 792.5 MWh | Apr 2011 | Dec 2023 | Solar |
| Blue Ridge Landfill | EPP Renewable Energy | Chambersburg, PA | PJM Interconnection, LLC (PJM) | 49.9 GWh | Dec 2012 | Dec 2023 | Landfill Gas |
| Romark PA Solar | Romark Logistics of PA Inc. | Hazle Township, PA | PJM Interconnection, LLC (PJM) | 1.8 GWh | Oct 2011 | Dec 2023 | Solar |
| Knouse Solar Project 1 | Knouse Food Cooperative Inc | Gardners, PA | PJM Interconnection, LLC (PJM) | 4.2 GWh | Nov 2010 | Dec 2022 | Solar |
| Haleon York RDC Solar Facility | Haleon PLC | York, PA | PJM Interconnection, LLC (PJM) | 1.2 GWh | Nov 2010 | Dec 2022 | Solar |
| Pocono Solar Project | Pocono International Raceway Inc | Long Pond, PA | PJM Interconnection, LLC (PJM) | 3.2 GWh | Jul 2010 | Dec 2023 | Solar |
| Morgantown Solar Park | The Hankin Group | Morgantown, PA | PJM Interconnection, LLC (PJM) | 1.3 GWh | Oct 2011 | Dec 2023 | Solar |
| Sandy Ridge Wind Farm | Algonquin Power Co | Tyrone, PA | PJM Interconnection, LLC (PJM) | 124.9 GWh | Jan 2012 | Dec 2023 | Wind |
| Aqua Ingrams Mill | Aqua America Inc | West Chester, PA | PJM Interconnection, LLC (PJM) | 882.5 MWh | Nov 2009 | Dec 2022 | Solar |
| Chestnut Flats Wind Farm | EDF Renewable Asset Holdings, Inc. | Altoona, PA | PJM Interconnection, LLC (PJM) | 102.1 GWh | Nov 2011 | Dec 2023 | Wind |
| PA Solar Park | Consolidated Edison Development Inc. | Nesquehoning, PA | PJM Interconnection, LLC (PJM) | 13.8 GWh | Sep 2012 | Jun 2024 | Solar |
| Allenwood | EPP Renewable Energy | Montgomery, PA | PJM Interconnection, LLC (PJM) | 24.7 GWh | Sep 2012 | Dec 2023 | Landfill Gas |
| PPL Frey Farm Landfill Wind | EPP Renewable Energy | Conestoga, PA | PJM Interconnection, LLC (PJM) | 6.2 GWh | Dec 2010 | Dec 2023 | Wind |
| Cambria Wind LLC | Exus North America Management Partners LLC | Sidman, PA | PJM Interconnection, LLC (PJM) | 135.2 GWh | Jul 2009 | Dec 2023 | Wind |
| Armenia Mountain Wind Farm | ALLETE Clean Energy | Mainesburg, PA | PJM Interconnection, LLC (PJM) | 296.0 GWh | Nov 2009 | Dec 2022 | Wind |
| Waste Management Arden LFGTE | WM Renewable Energy LLC | Washington, PA | PJM Interconnection, LLC (PJM) | 42.0 GWh | Jan 2009 | Dec 2023 | Landfill Gas |
| MF Mesa Lane LLC | MF Mesa Lane LLC | Morrisville, PA | PJM Interconnection, LLC (PJM) | 3.2 GWh | Oct 2008 | Dec 2023 | Solar |
| Stony Creek Wind Farm LLC | RWE Renewables Americas, LLC | Berlin, PA | PJM Interconnection, LLC (PJM) | 141.5 GWh | Oct 2009 | Dec 2023 | Wind |
| Pioneer Crossing Energy, LLC | Pioneer Crossing Energy LLC | Birdsboro, PA | PJM Interconnection, LLC (PJM) | 44.0 GWh | Sep 2008 | Dec 2023 | Landfill Gas |
| Broad Mountain | UGI Development Co | Schuylkill, PA | PJM Interconnection, LLC (PJM) | 48.0 GWh | Dec 2008 | Dec 2022 | Landfill Gas |
| Norther Tier Landfill | EPP Renewable Energy | Burlington, PA | PJM Interconnection, LLC (PJM) | 9.6 GWh | Dec 2008 | Dec 2023 | Landfill Gas |
| Cumberland County PA LFG Recovery | EPP Renewable Energy | Shippensburg, PA | PJM Interconnection, LLC (PJM) | 49.9 GWh | Dec 2008 | Dec 2023 | Landfill Gas |
| SECCRA Community Landfill | Southeastern Chester County Refuse Auth | West Grove, PA | PJM Interconnection, LLC (PJM) | 3.8 GWh | Dec 2006 | Dec 2023 | Landfill Gas |
| West Campus Steam Plant | Penn State University | University Park, PA | PJM Interconnection, LLC (PJM) | 42.8 GWh | Dec 1937 | May 2024 | Natural Gas : 98.4% Distillate Fuel Oil : 1.6% |
| Oxbow Creek | Oxbow Creek Energy LLC | Factoryville, PA | PJM Interconnection, LLC (PJM) | 67.2 GWh | Nov 2019 | Dec 2023 | Natural Gas |
| Mahoning Creek Hydroelectric Project | Eagle Creek Renewable Energy, LLC | New Bethlehem, PA | PJM Interconnection, LLC (PJM) | 10.0 GWh | Nov 2013 | Dec 2023 | Water |
| Pickering Solar | Aqua America Inc | Phoenixville, PA | PJM Interconnection, LLC (PJM) | 2.0 GWh | Dec 2011 | Dec 2023 | Solar |
| L&S Sweetners | EDL Inc | Leola, PA | PJM Interconnection, LLC (PJM) | 17.1 GWh | Sep 2013 | Dec 2023 | Landfill Gas |
| Dart Container Corp | Dart Container Corp | Leola, PA | PJM Interconnection, LLC (PJM) | 50.7 GWh | Nov 2012 | Jun 2024 | Landfill Gas |
| Martin Limestone Solar Array | Sunstream Energy LLC | New Holland, PA | PJM Interconnection, LLC (PJM) | 1.7 GWh | Nov 2012 | Dec 2023 | Solar |
| Hamilton Patriot Generation Plant | Hamilton Patriot Operating Services, LLC | Montgomery, PA | PJM Interconnection, LLC (PJM) | 7.0 TWh | Jun 2016 | Jun 2024 | Natural Gas |
| Hamilton Liberty | Hamilton Liberty O&M LLC | Towanda, PA | PJM Interconnection, LLC (PJM) | 6.5 TWh | May 2016 | Jun 2024 | Natural Gas |
| PWD Northeast WPCP Biogas Cogen Plant | Philadelphia Water Department | Philadelphia, PA | PJM Interconnection, LLC (PJM) | 33.0 GWh | Nov 2013 | Jun 2024 | Other Biomass Gas : 87.2% Natural Gas : 12.8% |
| Tullytown | WM Renewable Energy LLC | Morrisville, PA | PJM Interconnection, LLC (PJM) | 14.3 GWh | Feb 2013 | Dec 2023 | Landfill Gas |
| Lincoln Financial Field | NRG Energy Center Eagles LLC | Philadelphia, PA | PJM Interconnection, LLC (PJM) | 3.1 GWh | Dec 2012 | Dec 2022 | Solar |
| East Campus Steam Plant | Penn State University | University Park, PA | PJM Interconnection, LLC (PJM) | 52.2 GWh | May 2011 | Jun 2024 | Natural Gas : 99.9% |
| Beaver Solar LLC | Laurel Capital Partners | Beaver, PA | PJM Interconnection, LLC (PJM) | 1.4 GWh | Nov 2012 | Dec 2022 | Solar |
| Keystone Solar | Altus Power America Management, LLC | Quarryville, PA | PJM Interconnection, LLC (PJM) | 7.8 GWh | Aug 2012 | Jun 2024 | Solar |
| Vitro Architectural Glass (PA) | Vitro Architectural Glass (PA) | Carlisle, PA | PJM Interconnection, LLC (PJM) | 84.2 MWh | Jun 1972 | Dec 2023 | Distillate Fuel Oil |
| Patton Wind Farm | Vitol PA Wind LLC | Patton, PA | PJM Interconnection, LLC (PJM) | 89.3 GWh | Nov 2012 | Dec 2023 | Wind |
| Twin Ridges Wind Farm | Vitol PA Wind LLC | Meyersdale, PA | PJM Interconnection, LLC (PJM) | 421.7 GWh | Nov 2012 | Dec 2023 | Wind |
| Highland North Wind Farm | Vitol PA Wind LLC | Sidman, PA | PJM Interconnection, LLC (PJM) | 184.4 GWh | Feb 2012 | Dec 2023 | Wind |
| Mehoopany Wind Energy LLC | AE Power Services LLC | Noxen, PA | PJM Interconnection, LLC (PJM) | 381.8 GWh | Nov 2012 | Dec 2023 | Wind |
| Longwood Gardens | Ecogy Pennsylvania Systems LLC | Kennett Square, PA | PJM Interconnection, LLC (PJM) | 2.0 GWh | Apr 2010 | Dec 2022 | Solar |
| Laurel Hill Wind | Duke Energy Renewables Services | Roaring Branch, PA | PJM Interconnection, LLC (PJM) | 142.9 GWh | Aug 2012 | Jun 2024 | Wind |
| CASD Solar | Carlisle Area School District | Carlisle, PA | PJM Interconnection, LLC (PJM) | 1.0 MWh | Sep 2010 | Dec 2022 | Solar |
| 500 Virginia Solar | Alliance HP Virginia Drive LLC | Ft. Washington, PA | PJM Interconnection, LLC (PJM) | 529.5 MWh | Jun 2011 | Dec 2022 | Solar |
| Lycoming County | EPP Renewable Energy | Montgomery, PA | PJM Interconnection, LLC (PJM) | 19.9 GWh | Sep 2012 | Dec 2023 | Landfill Gas |
Browse Power Plants By Pennsylvania Counties
Figures are based on December 2022 generation numbers.| County | State Rank | Active Plants | Dec 2022 Generation |
|---|---|---|---|
| Lehigh County, PA | # 52 | 2 | 2.0 GWh |
| Monroe County, PA | # 51 | 2 | 3.1 GWh |
| Mercer County, PA | # 50 | 1 | 5.0 GWh |
| Chester County, PA | # 49 | 8 | 9.7 GWh |
| Fulton County, PA | # 48 | 1 | 37.9 GWh |
| Washington County, PA | # 47 | 8 | 42.0 GWh |
| Erie County, PA | # 46 | 6 | 42.7 GWh |
| Union County, PA | # 45 | 3 | 47.8 GWh |
| Susquehanna County, PA | # 44 | 5 | 50.2 GWh |
| Clarion County, PA | # 43 | 4 | 61.0 GWh |
| Cumberland County, PA | # 42 | 7 | 63.8 GWh |
| Huntingdon County, PA | # 41 | 2 | 83.3 GWh |
| Centre County, PA | # 40 | 3 | 97.3 GWh |
| Dauphin County, PA | # 39 | 5 | 106.5 GWh |
| Northumberland County, PA | # 38 | 3 | 115.6 GWh |
| Elk County, PA | # 37 | 1 | 153.4 GWh |
| Wayne County, PA | # 36 | 4 | 196.5 GWh |
| Potter County, PA | # 35 | 2 | 275.5 GWh |
| Tioga County, PA | # 34 | 6 | 298.0 GWh |
| Blair County, PA | # 33 | 6 | 455.0 GWh |
| Venango County, PA | # 32 | 3 | 546.3 GWh |
| Franklin County, PA | # 31 | 14 | 554.1 GWh |
| Carbon County, PA | # 30 | 5 | 584.6 GWh |
| Somerset County, PA | # 29 | 15 | 1.0 TWh |
| Philadelphia County, PA | # 28 | 15 | 1.3 TWh |
| Wyoming County, PA | # 27 | 4 | 1.4 TWh |
| County | State Rank | Active Plants | Dec 2022 Generation |
|---|---|---|---|
| Montour County, PA | # 26 | 2 | 1.5 TWh |
| Schuylkill County, PA | # 25 | 14 | 1.8 TWh |
| Lancaster County, PA | # 24 | 15 | 1.9 TWh |
| Clearfield County, PA | # 23 | 4 | 2.0 TWh |
| Lebanon County, PA | # 22 | 4 | 4.0 TWh |
| Armstrong County, PA | # 21 | 8 | 4.8 TWh |
| Adams County, PA | # 20 | 7 | 4.8 TWh |
| Greene County, PA | # 19 | 4 | 4.8 TWh |
| Allegheny County, PA | # 18 | 18 | 5.8 TWh |
| Indiana County, PA | # 17 | 4 | 6.2 TWh |
| Fayette County, PA | # 16 | 8 | 6.2 TWh |
| Bradford County, PA | # 15 | 8 | 6.8 TWh |
| Lycoming County, PA | # 14 | 8 | 7.2 TWh |
| Lawrence County, PA | # 13 | 2 | 7.4 TWh |
| Westmoreland County, PA | # 12 | 3 | 7.5 TWh |
| Berks County, PA | # 11 | 11 | 8.0 TWh |
| Bucks County, PA | # 10 | 10 | 9.0 TWh |
| Snyder County, PA | # 9 | 4 | 9.0 TWh |
| Cambria County, PA | # 8 | 11 | 9.4 TWh |
| Lackawanna County, PA | # 7 | 5 | 11.5 TWh |
| Delaware County, PA | # 6 | 7 | 11.9 TWh |
| Northampton County, PA | # 5 | 10 | 13.2 TWh |
| Beaver County, PA | # 4 | 12 | 18.1 TWh |
| Montgomery County, PA | # 3 | 13 | 21.5 TWh |
| Luzerne County, PA | # 2 | 10 | 29.9 TWh |
| York County, PA | # 1 | 13 | 37.9 TWh |