Marmet

Hydro power plant · Kanawha County, West Virginia

Nameplate capacity
14 MW
Rank in West Virginia
#35
of 42 plants
In service since
1935
December 1935

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Appalachian Power Co
County
Kanawha County
Generating units
3
Share of state capacity
0.09%
Rank among hydro plants in West Virginia
#8 of 12
EIA plant code
6561

Generating units

Individual generating units at Marmet
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric4.8 MW4.8 MW1935Operating
2Conventional Hydroelectric4.8 MW4.8 MW1935Operating
3Conventional Hydroelectric4.8 MW4.8 MW1935Operating

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 West Virginia

Fort Martin SolarSolar19 MW
LondonHydro14 MW
Glen Ferris HydroHydro6.2 MW
Marlowe SolarSolar5.8 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 14 MW solar plant and a 14 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 West Virginia power plants · What West Virginia actually generates