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Martinsville

Hydro power plant · Henry County, Virginia

Nameplate capacity
1.3 MW
Rank in Virginia
#254
of 261 plants
In service since
1932
May 1932

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
City of Martinsville - (VA)
County
Henry County
Generating units
2
Share of state capacity
0.00%
Rank among hydro plants in Virginia
#23 of 24
EIA plant code
3826

Generating units

Individual generating units at Martinsville
UnitTechnologyNameplateSummerOnlineStatus
2Conventional Hydroelectric1.0 MW0.9 MW1932Operating
1Conventional Hydroelectric0.3 MW0.3 MW1932Operating

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 Virginia

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 1.3 MW solar plant and a 1.3 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 Virginia power plants · What Virginia actually generates