3rd largest plant in New York · 84th nationally
Nine Mile Point Nuclear Station is a nuclear power plant in New York with a nameplate capacity of 1,901 MW. It generates roughly 15.5M MWh per year — enough to power about 1,476,847 average U.S. homes.
Its capacity factor of 93% means it runs nearly around-the-clock as baseload generation.
| Plant Name | Nine Mile Point Nuclear Station |
|---|---|
| Operator | Constellation Nuclear |
| City | Lycoming |
| County | Oswego County |
| State | New York |
| ZIP | 13093 |
| Coordinates | 43.52110, -76.41000 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 2 | Nuclear | Uranium | 1,259 MW | Operating | 1987 |
| 1 | Nuclear | Uranium | 642 MW | Operating | 1969 |
| Owner | Location | Share |
|---|---|---|
| Constellation Nuclear | Warrenville, IL | 8200.0% |
| Long Island Power Authority | Uniondale, NY | 1800.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| NERC Region | NPCC |
|---|---|
| Balancing Authority | New York Independent System Operator |
Nuclear plants generate carbon-free baseload electricity by fissioning uranium fuel inside a reactor. They run nearly around-the-clock — typical capacity factors above 90% — and a single facility can power millions of homes. Spent fuel is stored on-site in dry casks. NRC oversees safety; emergency planning zones extend 10 miles from the reactor.