Public Service Co of Oklahoma — Operated Plants

12 plants · 5.8 GW total capacity · across 2 states

Public Service Co of Oklahoma operates 12 power plants with 5.8 GW total capacity. Primarily natural gas (7 plants, 4.9 GW). Parent organization: American Electric Power Company.

Largest is Northeastern (1478 MW Natural Gas); oldest active is Southwestern (1952); newest is Flat Ridge 4 (2025); top state is Oklahoma (10 plants).