Southwestern Electric Power Co operates 11 power plants across 1 country, with a combined installed capacity of 5,704 MW. Its plants with measured data emit a combined 12,698,565 t CO₂/yr.
| Plant | Fuel | Country | MW | t CO₂/yr |
|---|---|---|---|---|
| Welsh | Coal | United States of America | 1,116 | 3,997,737 |
| Wilkes | Gas | United States of America | 882 | 666,062 |
| Pirkey | Coal | United States of America | 721 | 931,067 |
| J Lamar Stall Unit | Gas | United States of America | 624 | — |
| John W Turk Jr Power Plant | Coal | United States of America | 609 | 2,902,385 |
| Flint Creek | Coal | United States of America | 558 | 2,278,545 |
| Knox Lee | Gas | United States of America | 427 | 273,690 |
| Harry D Mattison Gas Plant | Gas | United States of America | 349 | 120,648 |
| Lieberman | Gas | United States of America | 253 | 89,758 |
| Arsenal Hill | Gas | United States of America | 125 | 1,438,673 |
| Lone Star | Gas | United States of America | 40 | — |
Ownership & capacity: WRI Global Power Plant Database (CC BY 4.0). Measured CO₂ where reported to EPA/EU ETS/Climate TRACE.
