OZARK
OperatingHydro power plant
- Capacity
- 100 MW
- Primary fuel
- Hydro
- County
- Franklin County
- Operator
- USCE-LITTLE ROCK DISTRICT
- Status
- Operating
- Commissioned
- 1972
- EIA plant ID
- 6142
- Generators
- 5
- Technology
- Conventional Hydroelectric
- Net generation (2024)
- 315 GWh
- Capacity factor (2024, EIA nameplate)
- 36%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 35.4708, -93.8164
OZARK, a 100 MW Hydro power plant in Franklin County, Arkansas. Operated by USCE-LITTLE ROCK DISTRICT, commissioned 1972.
How OZARK compares
With 100 MW of capacity, OZARK ranks 24th among the 48 operating power plants Bywatts maps in Arkansas and 5th of the 19 operating Hydro plants in the state. It accounts for about 7.4% of Arkansas's operating Hydro capacity and 0.6% of all operating capacity in the state. Nationally it is the 179th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1972, it is older than 64% of the 48 operating Arkansas plants with a recorded commissioning year. Its operator, USCE-LITTLE ROCK DISTRICT, runs 6 operating plants in Arkansas totaling 889 MW. It shares Franklin County with one other operating plant, THOMAS FITZHUGH.
EIA-860 lists 5 generators at the site with 100 MW of nameplate capacity, all conventional hydroelectric technology. Net generation was 315 GWh in 2024 (a 36% capacity factor), up 10% from 2022. Its generators came online between 1972 and 1974.
Grid neighborhood
The closest transmission line found within 10 miles is a 161 kV line owned by OKLAHOMA GAS & ELECTRIC CO, under 0.1 miles away. One other operating power plant sits within 25 miles: THOMAS FITZHUGH (185 MW, Natural Gas).
Computed by Bywatts from HIFLD power plant and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
OZARK is a 100 MW hydro power plant in Franklin County, AR, operated by USCE-LITTLE ROCK DISTRICT, commissioned in 1972. Franklin County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.0 of 5 at the 50th national percentile. Ice storm is the leading peril, rated Relatively High by FEMA at the 97th 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.
Franklin County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Ice storm | Relatively High | 97th | 4.9 of 5 | 1.6 |
| Winter weather | Relatively Moderate | 89th | 4.6 of 5 | 8.1 |
| Wildfire | Relatively Low | 78th | 4.1 of 5 | <0.01 |
| Earthquake | Relatively Low | 69th | 3.8 of 5 | <0.01 |
| Heat wave | Relatively Moderate | 66th | 3.6 of 5 | 23.7 |
| Lightning | Relatively Moderate | 59th | 3.4 of 5 | 60.9 |
| Tornado | Relatively Low | 55th | 3.2 of 5 | 0.42 |
| Hail | Relatively Low | 54th | 3.2 of 5 | 5.9 |
| Riverine flooding | Relatively Low | 51st | 3.0 of 5 | 2.3 |
| Strong wind | Relatively Low | 47th | 2.9 of 5 | 4.6 |
| Hurricane | Very Low | 40th | 2.6 of 5 | 0.01 |
Perils not assessed in Franklin 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 Franklin 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.