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Sewalls

Hydro power plant · Jefferson County, New York

Nameplate capacity
2.0 MW
Rank in New York
#968
of 1,152 plants
In service since
1925
January 1925

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Erie Boulevard Hydropower LP
County
Jefferson County
Generating units
2
Share of state capacity
0.00%
Rank among hydro plants in New York
#131 of 165
EIA plant code
2608

Generating units

Individual generating units at Sewalls
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric1.0 MW1.1 MW1925Operating
2Conventional Hydroelectric1.0 MW1.1 MW1925Operating

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

Sangolqui SolarSolar2.0 MW
SchuylervilleHydro2.0 MW
Sharon SpringsSolar2.0 MW
Slate Hill(CSG)Solar2.0 MW

About this data

From EIA’s inventory of operable generators, June 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 2.0 MW solar plant and a 2.0 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