EDWARD L. ADDISON GENERATING PLANT
OperatingNatural Gas power plant
- Capacity
- 701 MW
- Primary fuel
- Natural Gas
- County
- Upson County
- Operator
- SOUTHERN POWER CO
- Status
- Operating
- Commissioned
- 2000
- EIA plant ID
- 55267
- Generators
- 4
- Technology
- Natural Gas Fired Combustion Turbine
- Net generation (2024)
- 242 GWh
- Capacity factor (2024, EIA nameplate)
- 3.9%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 32.9115, -84.3062
EDWARD L. ADDISON GENERATING PLANT, a 701 MW Natural Gas power plant in Upson County, Georgia. Operated by SOUTHERN POWER CO, commissioned 2000.
How EDWARD L. ADDISON GENERATING PLANT compares
With 701 MW of capacity, EDWARD L. ADDISON GENERATING PLANT ranks 16th among the 104 operating power plants Bywatts maps in Georgia and 9th of the 26 operating Natural Gas plants in the state. It accounts for about 4.7% of Georgia's operating Natural Gas capacity and 2.0% of all operating capacity in the state. Nationally it is the 188th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2000, it is newer than 70% of the 101 operating Georgia plants with a recorded commissioning year. Its operator, SOUTHERN POWER CO, runs 3 operating plants in Georgia totaling 2,859 MW. It shares Upson County with one other operating plant, UPSON ROCKY CREEK SOLAR PLANT.
EIA-860 lists 4 generators at the site with 701 MW of nameplate capacity, all natural gas fired combustion turbine technology. Net generation was 242 GWh in 2024 (a 3.9% capacity factor), down 35% from 2022.
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. One other operating power plant sits within 25 miles: UPSON ROCKY CREEK SOLAR PLANT (1 MW, Solar).
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
EDWARD L. ADDISON GENERATING PLANT is a 701 MW natural gas power plant in Upson County, GA, operated by SOUTHERN POWER CO, commissioned in 2000. Upson County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.5 of 5 at the 37th national percentile. Lightning is the leading peril, rated Relatively Low by FEMA at the 97th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Upson County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Lightning | Relatively Low | 97th | 4.9 of 5 | 63.2 |
| Hurricane | Relatively Low | 66th | 3.6 of 5 | 0.06 |
| Earthquake | Very Low | 57th | 3.3 of 5 | <0.01 |
| Hail | Relatively Low | 50th | 3.0 of 5 | 3.5 |
| Wildfire | Very Low | 47th | 2.9 of 5 | <0.01 |
| Strong wind | Relatively Low | 46th | 2.8 of 5 | 1.9 |
| Tornado | Relatively Low | 38th | 2.5 of 5 | 0.22 |
| Ice storm | Very Low | 35th | 2.4 of 5 | 0.47 |
| Heat wave | Relatively Low | 30th | 2.2 of 5 | 5.3 |
| Winter weather | Very Low | 24th | 1.9 of 5 | 0.89 |
| Riverine flooding | Very Low | 20th | 1.8 of 5 | 0.93 |
Perils not assessed in Upson 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 Upson 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.