Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Hanging Rock Energy Facility | Rolling Hills Generating |
|---|---|---|
| 1,429.8 MW | 977.5 MW | |
| Natural Gas Fired Combined Cycle | Natural Gas Fired Combustion Turbine | |
| Dynegy Hanging Rock Energy Facility | Rolling Hills Generating LLC | |
| 6 | 5 | |
| 9.94 TWh | 2.20 TWh | |
| 81.5% (2025) | 25.6% (2024) | |
| #27 of 538 | #16 of 825 | |
| 2026-06 | 2024-12 |