Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | J K Spruce | Coleto Creek |
|---|---|---|
| Capacity | 1,488.5 MW | 622.4 MW |
| Technology | Conventional Steam Coal | Conventional Steam Coal |
| Operator | City of San Antonio - (TX) | Coleto Creek Power LP |
| Operating units | 2 | 1 |
| Latest 12-month generation | 6.19 TWh | 2.86 TWh |
| Latest complete-year capacity factor | 49.6% (2025) | 56.8% (2025) |
| National technology rank | #43 of 206 | #106 of 206 |
| Latest EIA report | 2026-06 | 2026-06 |