DOW ST CHARLES OPERATIONS
OperatingNatural Gas power plant
- Capacity
- 343 MW
- Primary fuel
- Natural Gas
- County
- St. Charles Parish
- Operator
- DOW CHEMICAL CO - ST CHARLES
- Status
- Operating
- Commissioned
- 1996
- EIA plant ID
- 50152
- Coordinates
- 29.9867, -90.4431
DOW ST CHARLES OPERATIONS, a 343 MW Natural Gas power plant in St. Charles Parish, Louisiana. Operated by DOW CHEMICAL CO - ST CHARLES, commissioned 1996.
Weather peril exposure
DOW ST CHARLES OPERATIONS is a 343 MW natural gas power plant in St. Charles Parish, LA, operated by DOW CHEMICAL CO - ST CHARLES, commissioned in 1996. St. Charles Parish carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.7 of 5 at the 92nd 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. Charles Parish hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively High | 99th | 4.9 of 5 | 0.28 |
| Coastal flooding | Very High | 98th | 4.9 of 5 | 3.8 |
| Lightning | Relatively Moderate | 87th | 4.5 of 5 | 91.2 |
| Heat wave | Relatively Low | 71st | 3.8 of 5 | 14.7 |
| Hail | Relatively Low | 50th | 3.0 of 5 | 1.0 |
| Riverine flooding | Relatively Low | 47th | 2.9 of 5 | 1.5 |
| Tornado | Relatively Moderate | 43rd | 2.7 of 5 | 0.26 |
| Wildfire | Very Low | 36th | 2.4 of 5 | <0.01 |
| Winter weather | Relatively Low | 33rd | 2.3 of 5 | 0.84 |
| Earthquake | Very Low | 28th | 2.1 of 5 | <0.01 |
| Ice storm | Very Low | 11th | 1.4 of 5 | 0.07 |
| Strong wind | Relatively Low | 11th | 1.4 of 5 | 1.1 |
Model hail, wind and flood exposure for St. Charles 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.