Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | O W Sommers | Hays Energy Project |
|---|---|---|
| 892 MW | 989 MW | |
| Natural Gas Steam Turbine | Natural Gas Fired Combined Cycle | |
| City of San Antonio - (TX) | Hays Energy, LLC | |
| 2 | 4 | |
| 2.53 TWh | 5.53 TWh | |
| 32.3% (2024) | 61.6% (2025) | |
| #33 of 257 | #97 of 538 | |
| 2024-12 | 2026-06 |