ATTALA
OperatingNatural Gas power plant
- Capacity
- 551 MW
- Primary fuel
- Natural Gas
- County
- Attala County
- Operator
- ENTERGY MISSISSIPPI INC
- Status
- Operating
- Commissioned
- 2001
- EIA plant ID
- 55220
- Generators
- 3
- Technology
- Natural Gas Fired Combined Cycle
- Net generation (2024)
- 2,957 GWh
- Capacity factor (2024, EIA nameplate)
- 61%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 33.0147, -89.6753
ATTALA, a 551 MW Natural Gas power plant in Attala County, Mississippi. Operated by ENTERGY MISSISSIPPI INC, commissioned 2001.
How ATTALA compares
With 551 MW of capacity, ATTALA ranks 11th among the 37 operating power plants Bywatts maps in Mississippi and 8th of the 21 operating Natural Gas plants in the state. It accounts for about 6.0% of Mississippi's operating Natural Gas capacity and 3.6% of all operating capacity in the state. Nationally it is the 295th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2001, it is newer than 54% of the 35 operating Mississippi plants with a recorded commissioning year. Its operator, ENTERGY MISSISSIPPI INC, runs 3 operating plants in Mississippi totaling 1,884 MW.
EIA-860 lists 3 generators at the site with 551 MW of nameplate capacity, all natural gas fired combined cycle technology. Net generation was 2,957 GWh in 2024 (a 61% capacity factor), down 12% from 2022.
Grid neighborhood
The nearest named substation is LEAKE (161 kV), about 21.2 miles away; the closest transmission line found within 10 miles is a 500 kV line owned by ENTERGY MISSISSIPPI INC, under 0.1 miles away. One other operating power plant sits within 25 miles: RRI ENERGY CHOCTAW COUNTY GENERATING STATION (899 MW, Natural Gas).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
ATTALA is a 551 MW natural gas power plant in Attala County, MS, operated by ENTERGY MISSISSIPPI INC, commissioned in 2001. Attala County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.3 of 5 at the 82nd national percentile. Tornado 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 natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Attala County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Tornado | Relatively Moderate | 94th | 4.7 of 5 | 0.87 |
| Hail | Relatively Low | 83rd | 4.3 of 5 | 3.7 |
| Earthquake | Relatively Low | 83rd | 4.3 of 5 | <0.01 |
| Lightning | Relatively Low | 83rd | 4.3 of 5 | 68.8 |
| Hurricane | Relatively Low | 78th | 4.1 of 5 | 0.08 |
| Strong wind | Relatively Moderate | 77th | 4.1 of 5 | 3.0 |
| Ice storm | Relatively Low | 72nd | 3.9 of 5 | 0.99 |
| Wildfire | Very Low | 56th | 3.2 of 5 | <0.01 |
| Heat wave | Relatively Low | 50th | 3.0 of 5 | 12.9 |
| Winter weather | Relatively Low | 36th | 2.4 of 5 | 2.8 |
| Riverine flooding | Very Low | 30th | 2.2 of 5 | 0.93 |
Perils not assessed in Attala 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 Attala 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.