Largest hydroelectric power plants in NYISO

Conventional and pumped-storage hydroelectric plants ranked by EIA-reported nameplate capacity. Rankings use EIA-anchored plant records in NYISO.

Plants: 158
EIA nameplate capacity: 5.7 GW
Largest: 2,429.1 MW

Hydroelectric capacity ranking

158 matching plants·ranked by nameplate capacity

Rank	Plant	Capacity	Type	Operator	Location
151	Mill Pond HydroRivers Electric, LLC	1 MW	Conventional Hydroelectric	Rivers Electric, LLC	Greene County
152	Oswego Falls WestErie Boulevard Hydropower LP	1 MW	Conventional Hydroelectric	Erie Boulevard Hydropower LP	Oswego County
153	Port Leyden Hydroelectric ProjectLyonsdale Hydroelectric Co., Inc.	1 MW	Conventional Hydroelectric	Lyonsdale Hydroelectric Co., Inc.	Lewis County
154	Wappinger Falls HydroelectricWindsor Machinery Co Inc	1 MW	Conventional Hydroelectric	Windsor Machinery Co Inc	Dutchess County
155	Center FallsHollingworth & Vose Co Center Falls	0.8 MW	Conventional Hydroelectric	Hollingworth & Vose Co Center Falls	Washington County
156	OgdensburgAmpersand Ogdensburg Hydro, LLC	0.7 MW	Conventional Hydroelectric	Ampersand Ogdensburg Hydro, LLC	St Lawrence County
157	Hollow Dam Power PartnershipAmpersand Hollow Dam Hydro LLC	0.5 MW	Conventional Hydroelectric	Ampersand Hollow Dam Hydro LLC	St Lawrence County
158	TalcvilleErie Boulevard Hydropower LP	0.1 MW	Conventional Hydroelectric	Erie Boulevard Hydropower LP	St Lawrence County

Capacity is EIA-reported nameplate capacity, not seasonal capability or available operating capacity. A plant can include multiple generators and technologies; hybrid plants may appear in multiple peer groups.