Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | E F Barrett | Astoria Energy II |
|---|---|---|
| Capacity | 669.2 MW | 650 MW |
| Technology | Natural Gas Steam Turbine, Natural Gas Fired Combustion Turbine | Natural Gas Fired Combined Cycle |
| Operator | National Grid Generation LLC | Astoria Energy II LLC |
| Operating units | 14 | 3 |
| Latest 12-month generation | 1.09 TWh | 2.89 TWh |
| Latest complete-year capacity factor | 20.0% (2025) | 38.9% (2025) |
| National technology rank | #70 of 257 | #210 of 538 |
| Latest EIA report | 2026-06 | 2026-06 |