Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Essential Power Rock Springs LLC | Ironwood LLC |
|---|---|---|
| 795.6 MW | 777.6 MW | |
| Natural Gas Fired Combustion Turbine | Natural Gas Fired Combined Cycle | |
| Essential Power Operating Services LLC | Helix Ironwood LLC | |
| 4 | 3 | |
| 179.0 GWh | 4.05 TWh | |
| 2.6% (2024) | 71.9% (2025) | |
| #29 of 825 | #151 of 538 | |
| 2024-12 | 2026-06 |