H NEELY HENRY DAM
OperatingHydro power plant
- Capacity
- 73 MW
- Primary fuel
- Hydro
- County
- Calhoun County
- Operator
- ALABAMA POWER CO
- Status
- Operating
- Commissioned
- 1966
- EIA plant ID
- 11
- Generators
- 3
- Technology
- Conventional Hydroelectric
- Net generation (2024)
- 180 GWh
- Capacity factor (2024, EIA nameplate)
- 28%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 33.7842, -86.0526
H NEELY HENRY DAM, a 73 MW Hydro power plant in Calhoun County, Alabama. Operated by ALABAMA POWER CO, commissioned 1966.
How H NEELY HENRY DAM compares
With 73 MW of capacity, H NEELY HENRY DAM ranks 46th among the 64 operating power plants Bywatts maps in Alabama and 17th of the 23 operating Hydro plants in the state. It accounts for about 2.2% of Alabama's operating Hydro capacity and 0.2% of all operating capacity in the state. Nationally it is the 226th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1966, it is older than 64% of the 64 operating Alabama plants with a recorded commissioning year. Its operator, ALABAMA POWER CO, runs 22 operating plants in Alabama totaling 12,989 MW. It shares Calhoun County with one other operating plant, CALHOUN ENERGY CENTER.
EIA-860 lists 3 generators at the site with 73 MW of nameplate capacity, all conventional hydroelectric technology. Net generation was 180 GWh in 2024 (a 28% capacity factor), down 25% from 2022.
Grid neighborhood
The closest transmission line found within 10 miles is a 115 kV line owned by ALABAMA POWER CO, under 0.1 miles away. One other operating power plant sits within 25 miles: CALHOUN ENERGY CENTER (748 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
H NEELY HENRY DAM is a 73 MW hydro power plant in Calhoun County, AL, operated by ALABAMA POWER CO, commissioned in 1966. Calhoun County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.5 of 5 at the 38th national percentile. Tornado 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.
Calhoun County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Tornado | Relatively High | 97th | 4.9 of 5 | 0.53 |
| Lightning | Relatively Moderate | 75th | 4.0 of 5 | 64.2 |
| Riverine flooding | Relatively Moderate | 72nd | 3.9 of 5 | 1.0 |
| Earthquake | Relatively Low | 70th | 3.8 of 5 | <0.01 |
| Wildfire | Relatively Low | 66th | 3.6 of 5 | <0.01 |
| Hurricane | Relatively Low | 59th | 3.4 of 5 | 0.04 |
| Hail | Relatively Low | 43rd | 2.7 of 5 | 4.8 |
| Ice storm | Relatively Low | 33rd | 2.3 of 5 | 0.30 |
| Heat wave | Relatively Low | 28th | 2.1 of 5 | 4.6 |
| Strong wind | Relatively High | 22nd | 1.9 of 5 | 3.3 |
| Winter weather | Relatively Low | 9th | 1.3 of 5 | 3.1 |
Perils not assessed in Calhoun 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 Calhoun 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.