TECHE
Partly retiredNatural Gas power plant
- Capacity
- 412 MW
- Primary fuel
- Natural Gas
- County
- St. Mary Parish
- Operator
- CLECO POWER LLC
- EIA plant ID
- 1400
- Generators
- 1
- Technology
- Natural Gas Fired Combustion Turbine
- Net generation (2024)
- 20.9 GWh
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 29.8230, -91.5429
TECHE, a partly retired 412 MW Natural Gas power plant in St. Mary Parish, Louisiana. Most of its capacity was retired, most recently in 2024, according to EIA-860.
How TECHE compares
EIA-860 lists 42 MW still operable at the site (natural gas fired combustion turbine), against the 412 MW recorded for it. Its operator, CLECO POWER LLC, runs 3 operating plants in Louisiana totaling 3,126 MW. It shares St. Mary Parish with 2 other operating plants, NEPTUNE GAS PROCESSING PLANT and MORGAN CITY CC YOUNGS ROAD.
EIA-860 lists 1 generator at the site with 42 MW of nameplate capacity, all natural gas fired combustion turbine technology (this page's HIFLD capacity figure is 412 MW). Net generation was 20.9 GWh in 2024, down 93% from 2022.
Grid neighborhood
The closest transmission line found within 10 miles is a 138 kV line owned by CLECO POWER LLC, under 0.1 miles away. Another 2 operating power plants totaling 6 MW sit within 25 miles; the largest is NEPTUNE GAS PROCESSING PLANT (5 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
TECHE is a partly retired 412 MW natural gas power plant in St. Mary Parish, LA, operated by CLECO POWER LLC. St. Mary Parish carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.5 of 5 at the 88th national percentile. Hurricane is the leading peril, rated Relatively High by FEMA at the 99th 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.
St. Mary Parish hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively High | 99th | 4.9 of 5 | 0.23 |
| Lightning | Relatively Moderate | 90th | 4.6 of 5 | 88.2 |
| Heat wave | Relatively Low | 75th | 4.0 of 5 | 9.4 |
| Coastal flooding | Relatively High | 72nd | 3.9 of 5 | 3.8 |
| Strong wind | Relatively Low | 49th | 2.9 of 5 | 0.66 |
| Tornado | Relatively Moderate | 44th | 2.8 of 5 | 0.59 |
| Hail | Relatively Low | 36th | 2.4 of 5 | 0.92 |
| Winter weather | Relatively Low | 30th | 2.2 of 5 | 0.69 |
| Earthquake | Very Low | 27th | 2.1 of 5 | <0.01 |
| Ice storm | Relatively Low | 23rd | 1.9 of 5 | 0.12 |
| Wildfire | Very Low | 13th | 1.5 of 5 | <0.01 |
| Riverine flooding | Relatively Low | 4th | 1.2 of 5 | 0.89 |
Model hail, wind and flood exposure for St. Mary Parish 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.