COOPER
OperatingNuclear power plant
- Capacity
- 801 MW
- Primary fuel
- Nuclear
- County
- Nemaha County
- Operator
- NEBRASKA PUBLIC POWER DISTRICT
- Status
- Operating
- Commissioned
- 1974
- EIA plant ID
- 8036
- Coordinates
- 40.3621, -95.6413
COOPER, an 801 MW Nuclear power plant in Nemaha County, Nebraska. Operated by NEBRASKA PUBLIC POWER DISTRICT, commissioned 1974.
Weather peril exposure
COOPER is an 801 MW nuclear power plant in Nemaha County, NE, operated by NEBRASKA PUBLIC POWER DISTRICT, commissioned in 1974. Nemaha County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.0 of 5 at the 51st national percentile. Heat wave is the leading peril, rated Relatively Low by FEMA at the 99th 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.
Nemaha County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Heat wave | Relatively Low | 99th | 5.0 of 5 | 8.4 |
| Tornado | Relatively Low | 95th | 4.8 of 5 | 0.35 |
| Wildfire | Relatively Low | 83rd | 4.3 of 5 | <0.01 |
| Winter weather | Very Low | 68th | 3.7 of 5 | 12.1 |
| Strong wind | Relatively Low | 68th | 3.7 of 5 | 4.4 |
| Ice storm | Relatively Low | 62nd | 3.5 of 5 | 0.94 |
| Lightning | Very Low | 61st | 3.4 of 5 | 47.6 |
| Hail | Relatively Low | 55th | 3.2 of 5 | 7.2 |
| Riverine flooding | Very Low | 52nd | 3.1 of 5 | 2.2 |
| Earthquake | Very Low | 17th | 1.7 of 5 | <0.01 |
Perils not assessed in Nemaha County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Hurricane | FEMA rating is "No Rating" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Nemaha 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.