Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Watson Cogeneration | AES Huntington Beach Energy Project |
|---|---|---|
| 405 MW | 699.2 MW | |
| Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle | |
| ARCO Products Co-Watson | AES Huntington Beach Energy, LLC | |
| 6 | 3 | |
| 2.38 TWh | 1.61 TWh | |
| 65.8% (2025) | 30.7% (2025) | |
| #326 of 538 | #180 of 538 | |
| 2026-06 | 2026-06 |