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Hat Rapids

Hydro power plant · Oneida County, Wisconsin

Nameplate capacity
1.7 MW
Rank in Wisconsin
#235
of 278 plants
In service since
1984
September 1984

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Wisconsin Public Service Corp
County
Oneida County
Generating units
3
Share of state capacity
0.01%
Rank among hydro plants in Wisconsin
#47 of 61
EIA plant code
4064

Generating units

Individual generating units at Hat Rapids
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric0.8 MW0.8 MW2023Operating
2AConventional Hydroelectric0.5 MW0.5 MW1984Operating
3AConventional Hydroelectric0.4 MW0.4 MW1984Operating

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 Wisconsin

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 1.7 MW solar plant and a 1.7 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 Wisconsin power plants · What Wisconsin actually generates