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Vergennes 9

Hydro power plant · Addison County, Vermont

Nameplate capacity
2.4 MW
Rank in Vermont
#58
of 117 plants
In service since
1943
January 1943

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Green Mountain Power Corp
County
Addison County
Generating units
3
Share of state capacity
0.27%
Rank among hydro plants in Vermont
#29 of 45
EIA plant code
6519

Generating units

Individual generating units at Vergennes 9
UnitTechnologyNameplateSummerOnlineStatus
4Conventional Hydroelectric1.0 MW1.0 MW1943Operating
1Conventional Hydroelectric0.7 MW0.7 MW2012Operating
2Conventional Hydroelectric0.7 MW0.7 MW2012Operating

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

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 2.4 MW solar plant and a 2.4 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