CALVERT CLIFFS NUCLEAR POWER PLANT
OperatingNuclear power plant
- Capacity
- 1,829 MW
- Primary fuel
- Nuclear
- County
- Calvert County
- Operator
- CALVERT CLIFFS NUCLEAR PP LLC
- Status
- Operating
- Commissioned
- 1975
- EIA plant ID
- 6011
- Coordinates
- 38.4349, -76.4414
CALVERT CLIFFS NUCLEAR POWER PLANT, a 1,829 MW Nuclear power plant in Calvert County, Maryland. Operated by CALVERT CLIFFS NUCLEAR PP LLC, commissioned 1975.
Weather peril exposure
CALVERT CLIFFS NUCLEAR POWER PLANT is a 1,829 MW nuclear power plant in Calvert County, MD, operated by CALVERT CLIFFS NUCLEAR PP LLC, commissioned in 1975. Calvert County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.7 of 5 at the 43rd national percentile. Coastal flooding is the leading peril, rated Relatively Low by FEMA at the 94th 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.
Calvert County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Coastal flooding | Relatively Low | 94th | 4.7 of 5 | 3.6 |
| Hurricane | Relatively Moderate | 84th | 4.3 of 5 | 0.11 |
| Wildfire | Very Low | 55th | 3.2 of 5 | <0.01 |
| Strong wind | Relatively Low | 49th | 3.0 of 5 | 5.6 |
| Earthquake | Very Low | 45th | 2.8 of 5 | <0.01 |
| Ice storm | Relatively Low | 39th | 2.6 of 5 | 0.39 |
| Hail | Very Low | 33rd | 2.3 of 5 | 2.8 |
| Lightning | Relatively Moderate | 33rd | 2.3 of 5 | 38.6 |
| Winter weather | Relatively Low | 17th | 1.7 of 5 | 6.8 |
| Tornado | Very Low | 16th | 1.7 of 5 | 0.21 |
| Riverine flooding | Very Low | 2nd | 1.1 of 5 | 1.1 |
| Heat wave | Relatively Low | 0th | 1.0 of 5 | 6.4 |
Model hail, wind and flood exposure for Calvert 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.