Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Watson Cogeneration | Walnut Creek Energy Park |
|---|---|---|
| 405 MW | 500 MW | |
| Natural Gas Fired Combined Cycle | Natural Gas Fired Combustion Turbine | |
| ARCO Products Co-Watson | Walnut Creek LLC | |
| 6 | 5 | |
| 2.38 TWh | 41.0 GWh | |
| 65.8% (2025) | 1.0% (2025) | |
| #326 of 538 | #90 of 825 | |
| 2026-06 | 2026-06 |