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St John

Other power plant · Stafford County, Kansas

Nameplate capacity
6.8 MW
Rank in Kansas
#130
of 192 plants
In service since
1965
September 1965

Details

Primary fuel
Other
Technology
Petroleum Liquids
Operator
City of St. John - (KS)
County
Stafford County
Generating units
4
Share of state capacity
0.03%
Rank among other plants in Kansas
#20 of 40
EIA plant code
1322

Generating units

Individual generating units at St John
UnitTechnologyNameplateSummerOnlineStatus
5Petroleum Liquids2.0 MW2.0 MW1982Operating
6Petroleum Liquids1.8 MW1.8 MW2023Operating
4Petroleum Liquids1.7 MW1.7 MW1965Operating
2Petroleum Liquids1.3 MW1.3 MW2002Operating

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 Kansas

Kansas River ProjectHydro7.0 MW
Hill CityOther6.9 MW
Chanute SolarSolar6.0 MW
City of Pratt SolarSolar6.0 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 6.8 MW solar plant and a 6.8 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 Kansas power plants · What Kansas actually generates