James A Fitzpatrick
Nuclear power plant · Oswego County, New York
Nameplate capacity
883 MW
Rank in New York
#15
of 1,152 plants
In service since
1976
August 1976
Details
- Primary fuel
- Nuclear
- Technology
- Nuclear
- Operator
- Constellation Nuclear
- County
- Oswego County
- Generating units
- 1
- Share of state capacity
- 1.97%
- Rank among nuclear plants in New York
- #2 of 3
- EIA plant code
- 6110
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Nuclear | 883 MW | 853 MW | 1976 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in New York
| Robert Moses Power Dam | Hydro | 912 MW |
| Bethlehem Energy Center | Natural gas | 893 MW |
| Arthur Kill Generating Station | Natural gas | 878 MW |
| CPV Valley Energy Center | Natural gas | 771 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 883 MW solar plant and a 883 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All New York power plants · What New York actually generates