KEWAUNEE
OperatingNuclear power plant
- Capacity
- 560 MW
- Primary fuel
- Nuclear
- County
- Kewaunee County
- Operator
- DOMINION ENERGY KEWAUNEE INC.
- Status
- Operating
- EIA plant ID
- 8024
- Coordinates
- 44.3423, -87.5361
KEWAUNEE, a 560 MW Nuclear power plant in Kewaunee County, Wisconsin. Operated by DOMINION ENERGY KEWAUNEE INC.
Weather peril exposure
KEWAUNEE is a 560 MW nuclear power plant in Kewaunee County, WI, operated by DOMINION ENERGY KEWAUNEE INC. Kewaunee County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.9 of 5 at the 49th national percentile. Heat wave is the leading peril, rated Very Low by FEMA at the 75th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a nuclear plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Kewaunee County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Heat wave | Very Low | 75th | 4.0 of 5 | 0.95 |
| Hail | Relatively Low | 61st | 3.5 of 5 | 1.4 |
| Tornado | Relatively Low | 43rd | 2.7 of 5 | 0.21 |
| Coastal flooding | Very Low | 26th | 2.0 of 5 | 0.02 |
| Lightning | Relatively Low | 25th | 2.0 of 5 | 29.4 |
| Strong wind | Relatively Low | 20th | 1.8 of 5 | 1.5 |
| Ice storm | Very Low | 15th | 1.6 of 5 | 0.19 |
| Winter weather | Very Low | 13th | 1.5 of 5 | 16.2 |
| Earthquake | Very Low | 6th | 1.2 of 5 | <0.01 |
| Hurricane | Very Low | 6th | 1.2 of 5 | 0.01 |
| Riverine flooding | Very Low | 3rd | 1.1 of 5 | 0.68 |
| Wildfire | Very Low | 2nd | 1.1 of 5 | <0.01 |
Model hail, wind and flood exposure for Kewaunee County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.