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Vernon Dam

Hydro power plant · Windham County, Vermont

Nameplate capacity

36 MW

Rank in Vermont

of 117 plants

In service since

1909

August 1909

Details

Primary fuel: Hydro
Technology: Conventional Hydroelectric
Operator: Great River Hydro, LLC
County: Windham County
Generating units: 10
Share of state capacity: 3.99%
Rank among hydro plants in Vermont: #2 of 45
EIA plant code: 2352

Generating units

Individual generating units at Vernon Dam
Unit	Technology	Nameplate	Summer	Online	Status
6A	Conventional Hydroelectric	5.0 MW	4.5 MW	2008	Operating
7A	Conventional Hydroelectric	5.0 MW	4.5 MW	2008	Operating
5	Conventional Hydroelectric	4.5 MW	3.6 MW	2008	Operating
8	Conventional Hydroelectric	4.5 MW	3.6 MW	2008	Operating
10	Conventional Hydroelectric	4.2 MW	4.0 MW	1921	Operating
9	Conventional Hydroelectric	4.2 MW	4.0 MW	1921	Operating
4	Conventional Hydroelectric	2.5 MW	2.4 MW	1909	Operating
1	Conventional Hydroelectric	2.0 MW	2.4 MW	1909	Operating
2	Conventional Hydroelectric	2.0 MW	2.4 MW	1909	Operating
3	Conventional Hydroelectric	2.0 MW	2.4 MW	1909	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 Vermont

Bellows Falls	Hydro	41 MW
Sheffield Wind	Wind	40 MW
Wilder	Hydro	36 MW
Harriman	Hydro	34 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 36 MW solar plant and a 36 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 Vermont power plants · What Vermont actually generates