Public Service Co of Oklahoma — Operated Plants

13 plants · 7.4 GW total capacity · across 2 states

Public Service Co of Oklahoma operates 13 power plants with 7.4 GW total capacity. Primarily natural gas (7 plants, 6.3 GW). Parent organization: American Electric Power Company.

Largest is Comanche (OK) (1667 MW Natural Gas); oldest active is Southwestern (1952); newest is Flat Ridge 4 (2025); top state is Oklahoma (10 plants).