Cornell

Hydro power plant · Chippewa County, Wisconsin

Nameplate capacity
35 MW
Rank in Wisconsin
#73
of 278 plants
In service since
1976
July 1976

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Northern States Power Co - Minnesota
County
Chippewa County
Generating units
4
Share of state capacity
0.18%
Rank among hydro plants in Wisconsin
#3 of 61
EIA plant code
6086

Generating units

Individual generating units at Cornell
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric12 MW6.2 MW1976Operating
2Conventional Hydroelectric12 MW6.4 MW1976Operating
3Conventional Hydroelectric12 MW6.9 MW1976Operating
4Conventional Hydroelectric0.8 MW0.4 MW1977Operating

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

WissotaHydro39 MW
Georgia-Pacific Corp - Nekoosa MillNatural gas39 MW
HolcombeHydro34 MW
Prairie Du SacHydro33 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 35 MW solar plant and a 35 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