Constellation Energy — Power Plant Portfolio

63 plants · 32 GW total capacity · across 16 states

Constellation Energy operates 63 power plants across 16 states with 32 GW total capacity. Their fleet is primarily natural gas (35 plants).

Largest is South Texas Project (2709 MW Nuclear); oldest active is Conowingo (1928); newest is Exelon West Medway II LLC (2019); top state is California (12 plants).

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Key Stats

Largest fuel
Natural Gas (35 plants)
Largest state
California (12 plants)
Subsidiary operators
Constellation Power, Inc (17)Calpine Mid-Atlantic Generation LLC (8)Geysers Power Co LLC (4)Constellation Power Source Generation, LLC (2)Calpine New Jersey Generation LLC (2)Calpine Gilroy Cogen LP (2)STP Nuclear Operating Co (1)Constellation Nuclear (1)Deer Park Energy Center (1)Calpine Bethlehem LLC (1)

Plants by State

California (12 plants · 4.2 GW)

Texas (11 plants · 12 GW)

Pennsylvania (11 plants · 4.1 GW)

Delaware (5 plants · 1.9 GW)

Massachusetts (4 plants · 1.3 GW)

Maryland (4 plants · 1.1 GW)

New York (3 plants · 2.3 GW)

Alabama (2 plants · 1.7 GW)

New Jersey (2 plants · 344 MW)

Virginia (2 plants · 39 MW)

Idaho (2 plants · 27 MW)

New Hampshire (1 plants · 790 MW)

Arizona (1 plants · 708 MW)

Illinois (1 plants · 597 MW)

Maine (1 plants · 564 MW)

Arkansas (1 plants · 230 MW)

Plants by Fuel Type

Natural Gas (35 plants · 22.9 GW)

Oil & Petroleum (17 plants · 1.5 GW)

Geothermal (4 plants · 1.4 GW)

Nuclear (2 plants · 4.6 GW)

Hydroelectric (2 plants · 1.6 GW)

Wind (2 plants · 27 MW)

other (1 plants · 33 MW)