Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | South Texas Project | Cedar Bayou |
|---|---|---|
| Capacity | 2,708.6 MW | 1,530 MW |
| Technology | Nuclear | Natural Gas Steam Turbine |
| Operator | STP Nuclear Operating Co | NRG Texas Power LLC |
| Operating units | 2 | 2 |
| Latest 12-month generation | 20.25 TWh | 2.37 TWh |
| Latest complete-year capacity factor | 91.8% (2025) | 12.3% (2025) |
| National technology rank | #5 of 54 | #11 of 257 |
| Latest EIA report | 2026-06 | 2026-06 |