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Kewaunee nuclear power plant — United States of America

Retired nuclear power-station site in Wisconsin, United States of America. Approximate location 44.3426, -87.5357.

NuclearWisconsinUnited States of AmericaWH 2LP (DRYAMB)pressurized water reactorRetired

Kewaunee nuclear power plant is a retired nuclear power station in Wisconsin, United States of America. Its current lifecycle status is “Retired” — so it is not yet, or no longer, generating at full output. It ranks #1081 of 10,884 United States of America power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 17.4% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

595MW installed capacity
6construction time (1968→1974)
1974commissioned (~52 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_nuc_kewaunee_unite.

Data status

Known data

FacilityKewaunee nuclear power plant GEM-nuclear
CountryUnited States of America · Wisconsin GEM-nuclear
Coordinates44.3426, -87.5357 GEM-nuclear
FuelNuclear GEM-nuclear
MW installed capacity595 MW GEM Global Nuclear Power Tracker September 2025 unit-status sum (retired); retired/historical capacity
Verification noteSum of 1 GNPT unit records in the selected retired historical scope. source-verified
OwnerDominion Energy Inc [100%] GEM-nuclear
Commissioned1974 GEM-nuclear
Technologypressurized water reactor GEM-nuclear

Calculated from dataset

Capacity rank in country#1081 / 10884 calculated
Fuel-specific rank in country#138 / 176 calculated
Capacity vs country/fuel peers0.44× · 1,350 MW · n=176 calculated
Climate7.7°C · HDD 3,838 derived from coordinates
Environmental severityC3 · 37/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

Source of the capacity and fuel values:

capacity: GEM Global Nuclear Power Tracker September 2025 unit-status sum (retired); fuel: GEM GNPT

In context: how this plant compares

At 595 MW, Kewaunee nuclear power plant is below the median nuclear plant in United States of America (1,350 MW). Technically it is described as pressurized water reactor. Its lifecycle status is Retired; it no longer generates electricity. Nuclear plants split uranium to raise steam with no direct CO₂; they run as steady baseload with very high capacity factors and the longest operating lifetimes of any thermal plant.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

How it compares & nearby plants

The #138 largest nuclear power plant of 176 in United States of America by capacity.

United States of America has 176 nuclear power plants in this dataset, together about 270,415 MW of capacity.

Nearby power plants

Location

Coordinates 44.3426, -87.5357 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kewaunee nuclear power plant?

Kewaunee nuclear power plant was a nuclear-fired power station in Wisconsin, United States of America and was retired.

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