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Unionville

Other power plant · Putnam County, Missouri

Nameplate capacity
53 MW
Rank in Missouri
#57
of 139 plants
In service since
1976
June 1976

Details

Primary fuel
Other
Technology
Petroleum Liquids
Operator
Associated Electric Coop, Inc
County
Putnam County
Generating units
2
Share of state capacity
0.23%
Rank among other plants in Missouri
#6 of 35
EIA plant code
6563

Generating units

Individual generating units at Unionville
UnitTechnologyNameplateSummerOnlineStatus
1Petroleum Liquids27 MW20 MW1976Operating
2Petroleum Liquids27 MW20 MW1976Operating

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 Missouri

Clarence CannonHydro58 MW
Bluegrass RidgeWind57 MW
Stockton HydroHydro52 MW
HigginsvilleNatural gas52 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 53 MW solar plant and a 53 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 Missouri power plants · What Missouri actually generates