Southern Company

Utility

southerncompany.com ↗

Headquarters: GA, United States
Specialty: Gas (55%)
Parent: Southern Company
Size band: Mega (10 GW+)

Interconnection footprint

as of 2026-03-20

57.4 GW

Total capacity

148

Projects

28 · 10.3 GW

Active

38 · 16.7 GW

Operational

Withdrawn

388 MW

Avg project size

States

1999

First queued

Technology mix (by capacity)

Solar46 · 5.7 GW · 10%

Wind2 · 331 MW · 1%

Storage8 · 2.1 GW · 4%

Solar + Storage10 · 1.5 GW · 3%

Gas48 · 31.3 GW · 54%

Nuclear4 · 471 MW · 1%

Hydro1 · 18 MW · 0%

Other29 · 16.1 GW · 28%

Markets

Southeast 147MISO 1

Where the projects are

3 states

Largest project

1.1 GW · Other · AL · Southeast · Withdrawn

Sources

· ISO interconnection queues
· Resolved website

Written profiles are hand-entered and not independently verified. Queue figures are computed from ISO interconnection data and reflect requested capacity, not built capacity.

Southern Company companies in the Atlas

Southern Power Company3.6 GW · 15 projects · Gas

Projects filed under their own name

SE Choctaw, L.L.C. (Red Hills Generating Facility)7 GW · 12 projects · Other

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