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Gilliam South

Other power plant · Adair County, Iowa

Nameplate capacity
4.3 MW
Rank in Iowa
#199
of 305 plants
In service since
2001
February 2001

Details

Primary fuel
Other
Technology
Petroleum Liquids
Operator
City of Stuart - (IA)
County
Adair County
Generating units
2
Share of state capacity
0.02%
Rank among other plants in Iowa
#49 of 90
EIA plant code
7857

Generating units

Individual generating units at Gilliam South
UnitTechnologyNameplateSummerOnlineStatus
7Petroleum Liquids2.5 MW2.3 MW2012Operating
1Petroleum Liquids1.8 MW1.7 MW2001Operating

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 Iowa

PanoraOther4.5 MW
DurantOther4.4 MW
BancroftOther4.2 MW
Alliant SBD 9403 Aegon DCOther4.1 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 4.3 MW solar plant and a 4.3 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 Iowa power plants · What Iowa actually generates