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Robert Moses Power Dam

Hydro power plant · St Lawrence County, New York

Nameplate capacity

912 MW

Rank in New York

#13

of 1,152 plants

In service since

1958

July 1958

Details

Primary fuel: Hydro
Technology: Conventional Hydroelectric
Operator: New York Power Authority
County: St Lawrence County
Generating units: 16
Share of state capacity: 2.04%
Rank among hydro plants in New York: #3 of 165
EIA plant code: 2694

Generating units

Individual generating units at Robert Moses Power Dam
Unit	Technology	Nameplate	Summer	Online	Status
17	Conventional Hydroelectric	57 MW	54 MW	1959	Operating
18	Conventional Hydroelectric	57 MW	54 MW	1959	Operating
19	Conventional Hydroelectric	57 MW	54 MW	1959	Operating
20	Conventional Hydroelectric	57 MW	54 MW	1959	Operating
21	Conventional Hydroelectric	57 MW	54 MW	1959	Out of service but expected to return to service in next calendar year
22	Conventional Hydroelectric	57 MW	54 MW	1959	Operating
23	Conventional Hydroelectric	57 MW	54 MW	1959	Operating
24	Conventional Hydroelectric	57 MW	54 MW	1958	Operating
25	Conventional Hydroelectric	57 MW	54 MW	1958	Operating
26	Conventional Hydroelectric	57 MW	54 MW	1958	Operating
27	Conventional Hydroelectric	57 MW	54 MW	1958	Operating
28	Conventional Hydroelectric	57 MW	54 MW	1958	Operating
29	Conventional Hydroelectric	57 MW	54 MW	1958	Operating
30	Conventional Hydroelectric	57 MW	54 MW	1958	Operating
31	Conventional Hydroelectric	57 MW	54 MW	1958	Operating
32	Conventional Hydroelectric	57 MW	54 MW	1958	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

Sithe Independence Station	Natural gas	1,158 MW
Blenheim Gilboa	Hydro	1,000 MW
Bethlehem Energy Center	Natural gas	893 MW
James A Fitzpatrick	Nuclear	883 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 912 MW solar plant and a 912 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