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Calderwood

Hydro power plant · Blount County, Tennessee

Nameplate capacity
157 MW
Rank in Tennessee
#18
of 106 plants
In service since
1930
April 1930

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Brookfield Smoky Mountain Hydropower LP
County
Blount County
Generating units
3
Share of state capacity
0.66%
Rank among hydro plants in Tennessee
#5 of 29
EIA plant code
54900

Generating units

Individual generating units at Calderwood
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric52 MW52 MW1930Operating
2Conventional Hydroelectric52 MW52 MW1930Operating
3Conventional Hydroelectric52 MW52 MW1938Operating

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 Tennessee

Watts Bar HydroHydro175 MW
ChickamaugaHydro160 MW
Center HillHydro156 MW
Fort LoudounHydro153 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 157 MW solar plant and a 157 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 Tennessee power plants · What Tennessee actually generates