Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Potomac Energy Center, LLC | Ironwood LLC |
|---|---|---|
| 812 MW | 777.6 MW | |
| Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle | |
| Potomac Energy Center LLC | Helix Ironwood LLC | |
| 3 | 3 | |
| 4.81 TWh | 4.05 TWh | |
| 66.7% (2025) | 71.9% (2025) | |
| #140 of 538 | #151 of 538 | |
| 2026-06 | 2026-06 |