Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Northport | Astoria Generating Station |
|---|---|---|
| Capacity | 1,564 MW | 943 MW |
| Technology | Petroleum Liquids, Natural Gas Steam Turbine | Natural Gas Steam Turbine |
| Operator | National Grid Generation LLC | U S Power Generating Company LLC |
| Operating units | 5 | 5 |
| Latest 12-month generation | 4.53 TWh | 870.9 GWh |
| Latest complete-year capacity factor | 29.8% (2025) | 10.5% (2024) |
| National technology rank | #10 of 257 | #29 of 257 |
| Latest EIA report | 2026-06 | 2024-12 |