Southern — Power Plant Portfolio

126 plants · 54.1 GW total capacity · across 17 states

Southern operates 126 power plants across 17 states with 54.1 GW total capacity. Their fleet is primarily solar (43 plants).

Largest is Vogtle (4658 MW Nuclear); oldest active is Morgan Falls (1903); newest is Millers Branch Solar (2026); top state is Georgia (51 plants).

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Key Stats

Largest fuel
Solar (43 plants)
Largest state
Georgia (51 plants)
Subsidiary operators
Georgia Power Co (44)Southern Power Co (37)Alabama Power Co (26)Mississippi Power Co (6)MN8 Energy LLC (4)Arevon Energy, Inc. (2)Oglethorpe Power Corporation (1)Choctaw Generation L.P, L.L.L.P. (1)Leeward Asset Management, LLC (1)Waverly Solar, LLC (1)

Plants by State

Georgia (51 plants · 24.3 GW)

Alabama (31 plants · 18.8 GW)

Texas (9 plants · 1.9 GW)

California (9 plants · 447 MW)

Mississippi (7 plants · 4.7 GW)

Oklahoma (5 plants · 815 MW)

North Carolina (3 plants · 2 GW)

Nevada (2 plants · 70 MW)

South Dakota (1 plants · 300 MW)

Tennessee (1 plants · 227 MW)

Kansas (1 plants · 200 MW)

Wyoming (1 plants · 150 MW)

Virginia (1 plants · 118 MW)

Colorado (1 plants · 52 MW)

Maine (1 plants · 43 MW)

Maryland (1 plants · 27 MW)

Arizona (1 plants · 20 MW)

Plants by Fuel Type

Solar (43 plants · 2.7 GW)

Hydroelectric (30 plants · 3.4 GW)

Natural Gas (25 plants · 28.5 GW)

Wind (13 plants · 2.3 GW)

Battery Storage (6 plants · 1 GW)

Nuclear (3 plants · 8.3 GW)

Coal (3 plants · 6.8 GW)

Oil & Petroleum (3 plants · 1.1 GW)

Queue Projects (3 projects)

Developer name contains “Southern”