Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Guernsey Power Station | Washington Energy Facility |
|---|---|---|
| 2,055 MW | 714.9 MW | |
| Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle | |
| Guernsey Power Station LLC | Dynegy Washington Energy Facility | |
| 3 | 3 | |
| 12.15 TWh | 4.80 TWh | |
| 62.8% (2025) | 56.0% (2025) | |
| #7 of 538 | #170 of 538 | |
| 2026-06 | 2026-06 |