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 | Jun 2026 |
| Annual Generation | 873.9 TWh |
| Power Plants | 2,465 |
| Utilities | 1,203 |
| 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 | 41.6% Nuclear | 30.7% Coal | 16.5% Wind | 3.6% Solar | 3% Other Fuel | 1.8% 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 |
|---|---|---|---|---|---|---|
| Calvert Cliffs Nuclear Power Plant | Constellation Nuclear | Lusby, MD | 15 TWh | Apr 1975 | Mar 2026 | Nuclear |
| Beaver Valley | Energy Harbor Nuclear Generation LLC | Shippingport, PA | 15 TWh | Aug 1976 | Mar 2026 | Nuclear |
| Dresden Generating Station | Constellation Nuclear | Morris, IL | 15 TWh | Jul 1970 | Mar 2026 | Nuclear |
| North Anna | Virginia Electric & Power Co | Mineral, VA | 16 TWh | May 1978 | Mar 2026 | Nuclear |
| Quad Cities Generating Station | Constellation Nuclear | Cordova, IL | 16 TWh | Nov 1972 | Mar 2026 | Nuclear |
| Donald C Cook | Indiana Michigan Power Co | Bridgman, MI | 18 TWh | Jul 1975 | Mar 2026 | Nuclear |
| TalenEnergy Susquehanna | TalenEnergy Susquehanna LLC | Berwick, PA | 19 TWh | May 1983 | Mar 2026 | Nuclear |
| LaSalle Generating Station | Constellation Nuclear | Marseilles, IL | 19 TWh | Dec 1983 | Mar 2026 | Nuclear |
| PSEG Salem Generating Station | PSEG Nuclear LLC | Hancocks Bridge, NJ | 19 TWh | May 1971 | Mar 2026 | Nuclear |
| Byron Generating Station | Constellation Nuclear | Byron, IL | 19 TWh | Aug 1985 | Mar 2026 | Nuclear |
| Limerick | Constellation Nuclear | Sanatoga, PA | 19 TWh | Jan 1986 | Mar 2026 | Nuclear |
| Braidwood Generation Station | Constellation Nuclear | Braceville, IL | 20 TWh | Jun 1988 | Mar 2026 | Nuclear |
| Peach Bottom | Constellation Nuclear | Delta, PA | 22 TWh | Jun 1974 | Mar 2026 | Nuclear |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 522.6 GWh | 4 |
| #25 | Dominion Energy South Carolina, Inc. | 24.9 TWh | 87 |
| #13 | Duke Energy Carolinas | 112.2 TWh | 565 |
| #17 | Duke Energy Progress East | 64.7 TWh | 559 |
| #51 | Duke Energy Progress West | 4.6 TWh | 10 |
| #15 | ISO New England | 111.3 TWh | 1,577 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.1 TWh | 25 |
| #12 | New York Independent System Operator | 134.9 TWh | 1,211 |
| #31 | South Carolina Public Service Authority | 18.5 TWh | 34 |
| #59 | Southeastern Power Administration | 1.3 TWh | 11 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 873.9 TWh | 2,465 |
| #2 | Midcontinent Independent System Operator, Inc. | 669.3 TWh | 2,831 |
| #3 | Electric Reliability Council of Texas, Inc. | 489.5 TWh | 1,313 |
| #5 | Southwest Power Pool | 304.8 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 252.5 TWh | 417 |
| #7 | California Independent System Operator | 173.0 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 163.7 TWh | 204 |
| #10 | Florida Power & Light Co. | 151.0 TWh | 187 |
| #12 | New York Independent System Operator | 134.9 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.2 TWh | 565 |