Power Plants in PJM Interconnection

2,155 plants · 252.1 GW total capacity

The PJM Interconnection grid region encompasses 2,155 power plants with 252.1 GW total capacity across 15 states.

Largest is Homer City Generating Station (4396 MW Natural Gas); oldest active is Reusens (1903); newest is KA361 (2026); top state is New Jersey (423 plants); top owner is Dominion Energy (88 plants).

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By Fuel Type

Solar
1,296 plants · 31.6 GW
Gas
289 plants · 112.4 GW
Wind
124 plants · 15.9 GW
Oil
124 plants · 5.2 GW
other
124 plants · 2.7 GW
Hydro
97 plants · 8.5 GW
Coal
42 plants · 38.2 GW
Battery
41 plants · 2 GW
Nuclear
18 plants · 35.5 GW

By State

New Jersey
423 plants · 16.5 GW
Pennsylvania
301 plants · 59.2 GW
Virginia
298 plants · 38.7 GW
Illinois
290 plants · 37.1 GW
Maryland
237 plants · 13.6 GW
Ohio
235 plants · 38.8 GW
North Carolina
130 plants · 3.3 GW
Indiana
71 plants · 12.7 GW
West Virginia
49 plants · 16.7 GW
Delaware
44 plants · 3.2 GW
Kentucky
38 plants · 7.2 GW
District of Columbia
22 plants · 78 MW
Michigan
15 plants · 4.8 GW
Tennessee
1 plants · 194 MW
Minnesota
1 plants · 3 MW