Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Green Power 2 | Cedar Bayou 4 |
|---|---|---|
| Capacity | 611 MW | 535.5 MW |
| Technology | Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle |
| Operator | South Houston Green Power LLC | NRG Cedar Bayou Development Company LLC |
| Operating units | 5 | 3 |
| Latest 12-month generation | 4.13 TWh | 2.27 TWh |
| Latest complete-year capacity factor | 72.1% (2025) | 48.2% (2024) |
| National technology rank | #127 of 538 | #299 of 538 |
| Latest EIA report | 2026-06 | 2024-12 |