PJM Interconnection, LLC
Balancing Authority Summary Information
PJM Interconnection, LLC is ranked #1 out of 64 balancing authorities in terms of total annual electricity generation.
| Balancing Authority | PJM Interconnection, LLC |
|---|---|
| States | Delaware District of Columbia Illinois Indiana Kentucky Maryland Michigan Minnesota New Jersey North Carolina Ohio Pennsylvania Tennessee Virginia West Virginia |
| Last Update | Oct 2026 |
| Annual Generation | 892.1 TWh |
| Power Plants | 2,806 |
| Utilities | 1,309 |
| Ranked #1 out of 64 in terms of net annual generation | |
| Ranked #1 out of 53 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 41.1% Nuclear | 30.5% Coal | 16.5% Wind | 3.8% Solar | 3.2% Other Fuel | 2.3% Water | 1.7% |
Map of PJM Interconnection, LLC
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Daily Net Generation for PJM Interconnection, LLC for the past 3 Years
| Plant Name | Utility | Location | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|
| Mountaineer | Appalachian Power Co | New Haven, WV | 7 TWh | Aug 1980 | Jul 2026 | Bituminous Coal : 99.7% |
| Davis Besse | Energy Harbor Nuclear Generation LLC | Oak Harbor, OH | 7 TWh | Oct 1977 | Jul 2026 | Nuclear |
| Lawrenceburg Power, LLC | Lawrenceburg Power, LLC | Lawrenceburg, IN | 7 TWh | May 2004 | Jul 2026 | Natural Gas |
| South Field Energy | South Field Energy, LLC | Wellsville, OH | 8 TWh | Jul 2021 | Jul 2026 | Natural Gas |
| Lackawanna Energy Center | Invenergy Services LLC | Jessup, PA | 8 TWh | Feb 2018 | Jul 2026 | Natural Gas |
| Indeck Niles Energy Center | Indeck Niles, LLC | Niles, MI | 8 TWh | Jun 2022 | Jul 2026 | Natural Gas |
| Warren County | Virginia Electric & Power Co | Front Royal, VA | 8 TWh | Nov 2014 | Jul 2026 | Natural Gas |
| Hummel Station LLC | Hummel Station, LLC | Shamokin Dam, PA | 8 TWh | May 2018 | Jul 2026 | Natural Gas |
| Rockport | Indiana Michigan Power Co | Rockport, IN | 9 TWh | Nov 1984 | Jul 2026 | Subbituminous Coal : 96.5% Bituminous Coal : 3.1% |
| H L Spurlock | East Kentucky Power Coop, Inc | Maysville, KY | 9 TWh | Aug 1977 | Jul 2026 | Bituminous Coal : 99.3% Tire-derived Fuels : 0.6% |
| PSEG Hope Creek Generating Station | PSEG Nuclear LLC | Hancocks Bridge, NJ | 9 TWh | Nov 1986 | Jul 2026 | Nuclear |
| John E Amos | Appalachian Power Co | St Albans, WV | 9 TWh | Aug 1971 | Jul 2026 | Bituminous Coal : 99.4% Distillate Fuel Oil : 0.6% |
| Fairless Energy Center | Edgewater Generation, LLC | Fairless Hills, PA | 9 TWh | Apr 2004 | Jul 2026 | Natural Gas |
| York Energy Center | Calpine Mid-Merit LLC | Delta, PA | 9 TWh | Feb 2011 | Jul 2026 | Natural Gas : 99.2% Distillate Fuel Oil : 0.8% |
| Brunswick County Power Station | Virginia Electric & Power Co | Freeman, VA | 10 TWh | Mar 2016 | Jul 2026 | Natural Gas |
| Cardinal | Cardinal Operating Company | Brillant, OH | 10 TWh | Jan 1967 | Jul 2026 | Bituminous Coal : 99.6% |
| Hanging Rock Energy Facility | Dynegy Hanging Rock Energy Facility | Ironton, OH | 10 TWh | May 2003 | Jul 2026 | Natural Gas |
| Perry | Energy Harbor Nuclear Generation LLC | Perry, OH | 11 TWh | Oct 1987 | Jul 2026 | Nuclear |
| Greensville County Power Station | Virginia Electric & Power Co | Emporia, VA | 11 TWh | Nov 2018 | Jul 2026 | Natural Gas |
| FirstEnergy Harrison Power Station | Monongahela Power Co | Haywood, WV | 11 TWh | Nov 1972 | Jul 2026 | Refined Coal : 61.6% Bituminous Coal : 38.2% |
| Surry | Virginia Electric & Power Co | Surry, VA | 12 TWh | Nov 1972 | Jul 2026 | Nuclear |
| Guernsey Power Station | Guernsey Power Station LLC | Byesville, OH | 12 TWh | Jan 2023 | Jul 2026 | Natural Gas |
| Gavin Power, LLC | Gavin Power, LLC | Cheshire, OH | 13 TWh | Sep 1974 | Jul 2026 | Bituminous Coal : 99.6% |
| Beaver Valley | Energy Harbor Nuclear Generation LLC | Shippingport, PA | 15 TWh | Aug 1976 | Jul 2026 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Constellation Nuclear | Lusby, MD | 15 TWh | Apr 1975 | Jul 2026 | Nuclear |
| Dresden Generating Station | Constellation Nuclear | Morris, IL | 15 TWh | Jul 1970 | Jul 2026 | Nuclear |
| Quad Cities Generating Station | Constellation Nuclear | Cordova, IL | 15 TWh | Nov 1972 | Jul 2026 | Nuclear |
| North Anna | Virginia Electric & Power Co | Mineral, VA | 16 TWh | May 1978 | Jul 2026 | Nuclear |
| LaSalle Generating Station | Constellation Nuclear | Marseilles, IL | 19 TWh | Dec 1983 | Jul 2026 | Nuclear |
| Donald C Cook | Indiana Michigan Power Co | Bridgman, MI | 19 TWh | Jul 1975 | Jul 2026 | Nuclear |
| PSEG Salem Generating Station | PSEG Nuclear LLC | Hancocks Bridge, NJ | 19 TWh | May 1971 | Jul 2026 | Nuclear |
| Limerick | Constellation Nuclear | Sanatoga, PA | 19 TWh | Jan 1986 | Jul 2026 | Nuclear |
| Braidwood Generation Station | Constellation Nuclear | Braceville, IL | 20 TWh | Jun 1988 | Jul 2026 | Nuclear |
| Byron Generating Station | Constellation Nuclear | Byron, IL | 20 TWh | Aug 1985 | Jul 2026 | Nuclear |
| TalenEnergy Susquehanna | TalenEnergy Susquehanna LLC | Berwick, PA | 20 TWh | May 1983 | Jul 2026 | Nuclear |
| Peach Bottom | Constellation Nuclear | Delta, PA | 22 TWh | Jun 1974 | Jul 2026 | Nuclear |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 445.8 GWh | 4 |
| #24 | Dominion Energy South Carolina, Inc. | 26.2 TWh | 83 |
| #13 | Duke Energy Carolinas | 113.5 TWh | 578 |
| #17 | Duke Energy Progress East | 66.3 TWh | 574 |
| #50 | Duke Energy Progress West | 4.6 TWh | 15 |
| #15 | ISO New England | 112.2 TWh | 1,667 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.2 TWh | 25 |
| #12 | New York Independent System Operator | 134.3 TWh | 1,334 |
| #28 | South Carolina Public Service Authority | 19.6 TWh | 35 |
| #59 | Southeastern Power Administration | 1.2 TWh | 11 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 892.1 TWh | 2,806 |
| #2 | Midcontinent Independent System Operator, Inc. | 678.7 TWh | 3,095 |
| #3 | Electric Reliability Council of Texas, Inc. | 507.3 TWh | 1,487 |
| #5 | Southwest Power Pool | 315.0 TWh | 876 |
| #6 | Southern Company Services, Inc. - Trans | 259.7 TWh | 423 |
| #7 | California Independent System Operator | 168.6 TWh | 2,170 |
| #9 | Tennessee Valley Authority | 166.3 TWh | 209 |
| #10 | Florida Power & Light Co. | 153.3 TWh | 188 |
| #12 | New York Independent System Operator | 134.3 TWh | 1,334 |
| #13 | Duke Energy Carolinas | 113.5 TWh | 578 |