WALLACE DAM
OperatingHydro power plant
- Capacity
- 321 MW
- Primary fuel
- Hydro
- County
- Hancock County
- Operator
- GEORGIA POWER CO
- Status
- Operating
- Commissioned
- 1979
- EIA plant ID
- 6087
- Generators
- 6
- Technology
- Hydroelectric Pumped Storage
- Net generation (2024)
- 19 GWh
- Capacity factor (2024, EIA nameplate)
- 0.7%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 33.3507, -83.1570
WALLACE DAM, a 321 MW Hydro power plant in Hancock County, Georgia. Operated by GEORGIA POWER CO, commissioned 1979.
How WALLACE DAM compares
With 321 MW of capacity, WALLACE DAM ranks 32nd among the 104 operating power plants Bywatts maps in Georgia and 5th of the 29 operating Hydro plants in the state. It accounts for about 9.0% of Georgia's operating Hydro capacity and 0.9% of all operating capacity in the state. Nationally it is the 62nd-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1979, it is older than 61% of the 101 operating Georgia plants with a recorded commissioning year. Its operator, GEORGIA POWER CO, runs 24 operating plants in Georgia totaling 19,021 MW.
EIA-860 lists 6 generators at the site with 321 MW of nameplate capacity, mainly hydroelectric pumped storage technology. Net generation was 19 GWh in 2024 (a 0.7% capacity factor). Its generators came online between 1979 and 1980.
Grid neighborhood
The closest transmission line found within 10 miles is a 230 kV line owned by GEORGIA POWER CO, under 0.1 miles away. Another 3 operating power plants totaling 1,533 MW sit within 25 miles; the largest is WASHINGTON COUNTY (796 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
WALLACE DAM is a 321 MW hydro power plant in Hancock County, GA, operated by GEORGIA POWER CO, commissioned in 1979. Hancock County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.4 of 5 at the 34th national percentile. Lightning is the leading peril, rated Very Low by FEMA at the 87th 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.
Hancock County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Lightning | Very Low | 87th | 4.5 of 5 | 59.3 |
| Hurricane | Relatively Low | 75th | 4.0 of 5 | 0.06 |
| Riverine flooding | Very Low | 73rd | 3.9 of 5 | 0.14 |
| Earthquake | Very Low | 68th | 3.7 of 5 | <0.01 |
| Ice storm | Relatively Low | 61st | 3.4 of 5 | 0.74 |
| Wildfire | Very Low | 52nd | 3.1 of 5 | <0.01 |
| Strong wind | Relatively Low | 48th | 2.9 of 5 | 2.3 |
| Tornado | Relatively Low | 47th | 2.9 of 5 | 0.24 |
| Hail | Relatively Low | 42nd | 2.7 of 5 | 2.8 |
| Heat wave | Relatively Low | 34th | 2.4 of 5 | 6.5 |
| Winter weather | Very Low | 26th | 2.0 of 5 | 1.00 |
Perils not assessed in Hancock 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 Hancock 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.