Southern Power Company
Wholesale generation subsidiary of Southern Company that develops, owns and operates gas, solar, wind and storage plants selling under long-term contracts across the US.
- Headquarters
- Atlanta, GA
- Specialty
- Gas (49%)
- Ownership
- Subsidiary
- Parent
- Southern Company
- Size band
- Large (2.5–10 GW)
Interconnection footprint
as of 2026-03-203.6 GW
Total capacity
15
Projects
4 · 777 MW
Active
3 · 448 MW
Operational
8
Withdrawn
242 MW
Avg project size
5
States
2012
First queued
Technology mix (by capacity)
Solar2 · 333 MW · 9%
Wind5 · 752 MW · 21%
Storage2 · 395 MW · 11%
Solar + Storage1 · 220 MW · 6%
Gas4 · 1.8 GW · 49%
Other1 · 150 MW · 4%
Markets
ERCOT 7Southeast 5West 3
Where the projects are
5 states
Largest project
SPC Jackson G
916 MW · Gas · TX · ERCOT · Withdrawn
- · Curated research
- · ISO interconnection queues
Written profiles are hand-entered and not independently verified. Queue figures are computed from ISO interconnection data and reflect requested capacity, not built capacity.
Projects filed under their own name
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