Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Commonwealth Chesapeake | Vienna Operations |
|---|---|---|
| 402.5 MW | 180.6 MW | |
| Petroleum Liquids | Petroleum Liquids | |
| Commonwealth Chesapeake Co LLC | NRG Vienna Operations Inc | |
| 7 | 2 | |
| 92.7 GWh | 4.6 GWh | |
| 1.3% (2025) | 0.3% (2024) | |
| #16 of 705 | #34 of 705 | |
| 2026-06 | 2024-12 |