Pyrites Plant
Hydro power plant · St Lawrence County, New York
Nameplate capacity
8.2 MW
Rank in New York
#240
of 1,152 plants
In service since
1949
January 1949
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Central Rivers Power US, LLC
- County
- St Lawrence County
- Generating units
- 3
- Share of state capacity
- 0.02%
- Rank among hydro plants in New York
- #49 of 165
- EIA plant code
- 10547
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN2 | Conventional Hydroelectric | 3.5 MW | 3.3 MW | 1985 | Operating |
| GEN3 | Conventional Hydroelectric | 3.5 MW | 3.3 MW | 1985 | Operating |
| GEN1 | Conventional Hydroelectric | 1.2 MW | 1.1 MW | 1949 | 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
| SWM Fuel Cell | Natural gas | 8.4 MW |
| Albert Einstein College of Medicine | Other | 8.2 MW |
| HVCC Cogen Plant | Other | 8.1 MW |
| Watertown | Hydro | 8.1 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 8.2 MW solar plant and a 8.2 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