SEQUOYAH
OperatingNuclear power plant
- Capacity
- 2,441 MW
- Primary fuel
- Nuclear
- County
- Hamilton County
- Operator
- TENNESSEE VALLEY AUTHORITY
- Status
- Operating
- Commissioned
- 1981
- EIA plant ID
- 6152
- Coordinates
- 35.2267, -85.0921
SEQUOYAH, a 2,441 MW Nuclear power plant in Hamilton County, Tennessee. Operated by TENNESSEE VALLEY AUTHORITY, commissioned 1981.
Weather peril exposure
SEQUOYAH is a 2,441 MW nuclear power plant in Hamilton County, TN, operated by TENNESSEE VALLEY AUTHORITY, commissioned in 1981. Hamilton County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.0 of 5 at the 25th national percentile. Earthquake is the leading peril, rated Relatively Moderate by FEMA at the 86th 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.
Hamilton County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively Moderate | 86th | 4.4 of 5 | <0.01 |
| Lightning | Relatively High | 81st | 4.3 of 5 | 61.4 |
| Tornado | Relatively High | 71st | 3.8 of 5 | 0.37 |
| Winter weather | Relatively High | 70th | 3.8 of 5 | 3.7 |
| Riverine flooding | Relatively High | 66th | 3.6 of 5 | 1.9 |
| Ice storm | Relatively High | 52nd | 3.1 of 5 | 0.62 |
| Wildfire | Relatively Low | 46th | 2.8 of 5 | <0.01 |
| Hurricane | Relatively Low | 39th | 2.6 of 5 | 0.02 |
| Hail | Relatively Moderate | 36th | 2.4 of 5 | 3.7 |
| Strong wind | Relatively High | 22nd | 1.9 of 5 | 4.6 |
| Heat wave | Relatively Low | 17th | 1.7 of 5 | 1.8 |
Perils not assessed in Hamilton 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 |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Hamilton 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.