WATAUGA
OperatingHydro power plant
- Capacity
- 58 MW
- Primary fuel
- Hydro
- County
- Carter County
- Operator
- TENNESSEE VALLEY AUTHORITY
- Status
- Operating
- Commissioned
- 1949
- EIA plant ID
- 3418
- Generators
- 2
- Technology
- Conventional Hydroelectric
- Net generation (2024)
- 155 GWh
- Capacity factor (2024, EIA nameplate)
- 31%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 36.3299, -82.1264
WATAUGA, a 58 MW Hydro power plant in Carter County, Tennessee. Operated by TENNESSEE VALLEY AUTHORITY, commissioned 1949.
How WATAUGA compares
With 58 MW of capacity, WATAUGA ranks 30th among the 53 operating power plants Bywatts maps in Tennessee and 18th of the 29 operating Hydro plants in the state. It accounts for about 1.4% of Tennessee's operating Hydro capacity and 0.3% of all operating capacity in the state. Nationally it is the 263rd-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1949, it is older than 67% 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 Carter County with one other operating plant, WILBUR.
EIA-860 lists 2 generators at the site with 58 MW of nameplate capacity, all conventional hydroelectric technology. Net generation was 155 GWh in 2024 (a 31% capacity factor), up 42% from 2022.
Grid neighborhood
The nearest named substation is WATAUGA DAM (161 kV), about 0.1 miles away; the closest transmission line found within 10 miles is a 161 kV line owned by TENNESSEE VALLEY AUTHORITY, under 0.1 miles away. Another 5 operating power plants totaling 499 MW sit within 25 miles; the largest is WOLF HILLS ENERGY (285 MW, Natural Gas). Within 50 miles is one mapped data center, 801 Main Street - Lenoir in Lenoir, about 43.1 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology
Weather peril exposure
WATAUGA is a 58 MW hydro power plant in Carter County, TN, operated by TENNESSEE VALLEY AUTHORITY, commissioned in 1949. Carter County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.4 of 5 at the 10th national percentile. Riverine flooding is the leading peril, rated Relatively Moderate by FEMA at the 81st percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a hydro plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Carter County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Relatively Moderate | 81st | 4.3 of 5 | 0.96 |
| Earthquake | Relatively Low | 68th | 3.7 of 5 | <0.01 |
| Wildfire | Very Low | 60th | 3.4 of 5 | <0.01 |
| Ice storm | Relatively Low | 59th | 3.3 of 5 | 0.48 |
| Lightning | Relatively Moderate | 55th | 3.2 of 5 | 50.6 |
| Hurricane | Very Low | 47th | 2.9 of 5 | 0.02 |
| Tornado | Relatively Low | 31st | 2.3 of 5 | 0.08 |
| Strong wind | Relatively High | 26th | 2.0 of 5 | 2.9 |
| Hail | Very Low | 21st | 1.8 of 5 | 3.7 |
| Winter weather | Relatively Low | 15th | 1.6 of 5 | 13.2 |
| Heat wave | Very Low | 8th | 1.3 of 5 | 0.05 |
Perils not assessed in Carter 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 Carter 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.