Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | James B Black | Rock Creek |
|---|---|---|
| 168.6 MW | 126 MW | |
| Conventional Hydroelectric | Conventional Hydroelectric | |
| Pacific Gas & Electric Co. | Pacific Gas & Electric Co. | |
| 2 | 2 | |
| 512.8 GWh | 448.9 GWh | |
| 42.2% (2025) | 54.1% (2025) | |
| #88 of 1,349 | #125 of 1,349 | |
| 2026-06 | 2026-06 |