PLAQUEMINE COGENERATION PLANT
OperatingNatural Gas power plant
- Capacity
- 987 MW
- Primary fuel
- Natural Gas
- County
- Iberville Parish
- Operator
- DOW CHEMICAL CO
- Status
- Operating
- Commissioned
- 2004
- EIA plant ID
- 55419
- Coordinates
- 30.3217, -91.2347
PLAQUEMINE COGENERATION PLANT, a 987 MW Natural Gas power plant in Iberville Parish, Louisiana. Operated by DOW CHEMICAL CO, commissioned 2004.
Weather peril exposure
PLAQUEMINE COGENERATION PLANT is a 987 MW natural gas power plant in Iberville Parish, LA, operated by DOW CHEMICAL CO, commissioned in 2004. Iberville Parish carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.3 of 5 at the 82nd national percentile. Hurricane is the leading peril, rated Relatively High 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.
Iberville Parish hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively High | 97th | 4.9 of 5 | 0.20 |
| Lightning | Relatively Moderate | 84th | 4.4 of 5 | 88.4 |
| Heat wave | Relatively Low | 59th | 3.4 of 5 | 14.7 |
| Tornado | Relatively Moderate | 53rd | 3.1 of 5 | 0.52 |
| Coastal flooding | Relatively Moderate | 47th | 2.9 of 5 | 3.8 |
| Ice storm | Relatively Low | 39th | 2.6 of 5 | 0.48 |
| Earthquake | Very Low | 31st | 2.2 of 5 | <0.01 |
| Winter weather | Very Low | 26th | 2.0 of 5 | 1.2 |
| Hail | Very Low | 25th | 2.0 of 5 | 1.3 |
| Strong wind | Relatively Low | 18th | 1.7 of 5 | 0.98 |
| Riverine flooding | Relatively Low | 14th | 1.6 of 5 | 0.46 |
| Wildfire | Very Low | 5th | 1.2 of 5 | <0.01 |
Model hail, wind and flood exposure for Iberville 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.