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
- Generators
- 2
- Technology
- Nuclear
- Net generation (2024)
- 13,427 GWh
- Capacity factor (2024, EIA nameplate)
- 63%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 35.2267, -85.0921
SEQUOYAH, a 2,441 MW Nuclear power plant in Hamilton County, Tennessee. Operated by TENNESSEE VALLEY AUTHORITY, commissioned 1981.
How SEQUOYAH compares
With 2,441 MW of capacity, SEQUOYAH ranks 2nd among the 53 operating power plants Bywatts maps in Tennessee and is the largest of the 2 operating Nuclear plants in the state. It accounts for about 66% of Tennessee's operating Nuclear capacity and 12% of all operating capacity in the state. Nationally it is the 8th-largest of the 55 operating Nuclear plants in the database. Commissioned in 1981, it is newer than 64% of the 53 operating Tennessee plants with a recorded commissioning year. Its operator, TENNESSEE VALLEY AUTHORITY, runs 32 operating plants in Tennessee totaling 19,142 MW. It shares Hamilton County with 4 other operating plants, including RACCOON MOUNTAIN and CHICKAMAUGA.
EIA-860 lists 2 generators at the site with 2,441 MW of nameplate capacity, all nuclear technology. Net generation was 13,427 GWh in 2024 (a 63% capacity factor), down 29% from 2022. Its generators came online between 1981 and 1982.
Grid neighborhood
The nearest named substation is WOLFTEVER, about 4.1 miles away; the closest transmission line found within 10 miles is a 500 kV line owned by TENNESSEE VALLEY AUTHORITY, under 0.1 miles away. Another 4 operating power plants totaling 1,884 MW sit within 25 miles; the largest is RACCOON MOUNTAIN (1,714 MW, Hydro).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
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.