Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | York Energy Center | Warren County |
|---|---|---|
| 1,449.4 MW | 1,472.2 MW | |
| Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle | |
| Calpine Mid-Merit LLC | Virginia Electric & Power Co | |
| 7 | 4 | |
| 9.00 TWh | 8.33 TWh | |
| 69.2% (2025) | 67.4% (2025) | |
| #24 of 538 | #19 of 538 | |
| 2026-06 | 2026-06 |