TENASKA CENTRAL ALABAMA GENERATING STN
OperatingNatural Gas power plant
- Capacity
- 927 MW
- Primary fuel
- Natural Gas
- County
- Autauga County
- Operator
- TENASKA ALABAMA B LP
- Status
- Operating
- Commissioned
- 2003
- EIA plant ID
- 55440
- Generators
- 4
- Technology
- Natural Gas Fired Combined Cycle
- Net generation (2024)
- 3,488 GWh
- Capacity factor (2024, EIA nameplate)
- 43%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 32.6496, -86.7384
TENASKA CENTRAL ALABAMA GENERATING STN, a 927 MW Natural Gas power plant in Autauga County, Alabama. Operated by TENASKA ALABAMA B LP, commissioned 2003.
How TENASKA CENTRAL ALABAMA GENERATING STN compares
With 927 MW of capacity, TENASKA CENTRAL ALABAMA GENERATING STN ranks 11th among the 64 operating power plants Bywatts maps in Alabama and 4th of the 16 operating Natural Gas plants in the state. It accounts for about 9.1% of Alabama's operating Natural Gas capacity and 2.9% of all operating capacity in the state. Nationally it is the 111th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2003, it is newer than 85% of the 64 operating Alabama plants with a recorded commissioning year. It shares Autauga County with 4 other operating plants, including E B HARRIS ELECTRIC GENERATING PLANT and TENASKA LINDSAY HILL GENERATING STATION.
EIA-860 lists 4 generators at the site with 927 MW of nameplate capacity, all natural gas fired combined cycle technology. Net generation was 3,488 GWh in 2024 (a 43% capacity factor), down 23% from 2022.
Grid neighborhood
The closest transmission line found within 10 miles is a 500 kV line owned by ALABAMA POWER CO, under 0.1 miles away. Another 6 operating power plants totaling 2,689 MW sit within 25 miles; the largest is E B HARRIS ELECTRIC GENERATING PLANT (1,304 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
TENASKA CENTRAL ALABAMA GENERATING STN is a 927 MW natural gas power plant in Autauga County, AL, operated by TENASKA ALABAMA B LP, commissioned in 2003. Autauga County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.2 of 5 at the 31st national percentile. Riverine flooding is the leading peril, rated Relatively Low by FEMA at the 73rd 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.
Autauga County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Relatively Low | 73rd | 3.9 of 5 | 0.93 |
| Hurricane | Relatively Low | 71st | 3.9 of 5 | 0.08 |
| Tornado | Relatively Moderate | 71st | 3.8 of 5 | 0.51 |
| Earthquake | Relatively Low | 66th | 3.6 of 5 | <0.01 |
| Lightning | Relatively Moderate | 53rd | 3.1 of 5 | 68.5 |
| Strong wind | Relatively Low | 48th | 2.9 of 5 | 1.3 |
| Heat wave | Relatively Moderate | 43rd | 2.7 of 5 | 9.5 |
| Ice storm | Relatively Low | 42nd | 2.7 of 5 | 0.40 |
| Wildfire | Very Low | 39th | 2.6 of 5 | <0.01 |
| Hail | Relatively Low | 38th | 2.5 of 5 | 2.6 |
| Winter weather | Very Low | 9th | 1.4 of 5 | 1.4 |
Perils not assessed in Autauga 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 Autauga 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.