Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | FirstEnergy Bay Shore | Vienna Operations |
|---|---|---|
| Capacity | 187 MW | 180.6 MW |
| Technology | Petroleum Liquids, Petroleum Coke | Petroleum Liquids |
| Operator | Walleye Power, LLC | NRG Vienna Operations Inc |
| Operating units | 5 | 2 |
| Latest 12-month generation | 1.00 TWh | 4.6 GWh |
| Latest complete-year capacity factor | 61.1% (2024) | 0.3% (2024) |
| National technology rank | #125 of 206 | #34 of 705 |
| Latest EIA report | 2024-12 | 2024-12 |