FORT LOUDOUN
OperatingHydro power plant
- Capacity
- 153 MW
- Primary fuel
- Hydro
- County
- Loudon County
- Operator
- TENNESSEE VALLEY AUTHORITY
- Status
- Operating
- Commissioned
- 1943
- EIA plant ID
- 3402
- Generators
- 4
- Technology
- Conventional Hydroelectric
- Net generation (2024)
- 732 GWh
- Capacity factor (2024, EIA nameplate)
- 54%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 35.7920, -84.2432
FORT LOUDOUN, a 153 MW Hydro power plant in Loudon County, Tennessee. Operated by TENNESSEE VALLEY AUTHORITY, commissioned 1943.
How FORT LOUDOUN compares
With 153 MW of capacity, FORT LOUDOUN ranks 17th among the 53 operating power plants Bywatts maps in Tennessee and 6th of the 29 operating Hydro plants in the state. It accounts for about 3.6% of Tennessee's operating Hydro capacity and 0.8% of all operating capacity in the state. Nationally it is the 122nd-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1943, it is older than 71% 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 Loudon County with one other operating plant, MELTON HILL.
EIA-860 lists 4 generators at the site with 153 MW of nameplate capacity, all conventional hydroelectric technology. Net generation was 732 GWh in 2024 (a 54% capacity factor), down 6% from 2022. Its generators came online between 1943 and 1949.
Grid neighborhood
The nearest named substation is FORT LOUDON DAM, 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 1,829 MW sit within 25 miles; the largest is KINGSTON (1,700 MW, Coal). Within 50 miles is one mapped data center, Peace Communications KNX1 in Knoxville, about 21.6 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
FORT LOUDOUN is a 153 MW hydro power plant in Loudon County, TN, operated by TENNESSEE VALLEY AUTHORITY, commissioned in 1943. Loudon County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.6 of 5 at the 15th national percentile. Lightning is the leading peril, rated Relatively Moderate by FEMA at the 94th 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.
Loudon County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Lightning | Relatively Moderate | 94th | 4.7 of 5 | 58.5 |
| Earthquake | Relatively Low | 90th | 4.6 of 5 | <0.01 |
| Winter weather | Relatively Moderate | 72nd | 3.9 of 5 | 4.3 |
| Riverine flooding | Relatively Low | 68th | 3.7 of 5 | 0.75 |
| Ice storm | Relatively Moderate | 56th | 3.2 of 5 | 0.50 |
| Wildfire | Very Low | 52nd | 3.1 of 5 | <0.01 |
| Tornado | Relatively Moderate | 50th | 3.0 of 5 | 0.09 |
| Hurricane | Very Low | 44th | 2.7 of 5 | 0.02 |
| Strong wind | Relatively Moderate | 36th | 2.4 of 5 | 4.9 |
| Hail | Very Low | 22nd | 1.9 of 5 | 3.1 |
| Heat wave | Very Low | 12th | 1.5 of 5 | 0.90 |
Perils not assessed in Loudon 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 Loudon 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.