Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Gateway Generating Station | Metcalf Energy Center |
|---|---|---|
| 619.7 MW | 635 MW | |
| Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle | |
| Pacific Gas & Electric Co. | Calpine Corp - Metcalf Energy Center | |
| 3 | 3 | |
| 2.38 TWh | 1.88 TWh | |
| 53.6% (2025) | 42.0% (2025) | |
| #229 of 538 | #221 of 538 | |
| 2026-06 | 2026-06 |