LOUISA
OperatingCoal power plant
- Capacity
- 812 MW
- Primary fuel
- Coal
- County
- Louisa County
- Operator
- MIDAMERICAN ENERGY CO
- Status
- Operating
- Commissioned
- 1983
- EIA plant ID
- 6664
- Coordinates
- 41.3174, -91.0933
LOUISA, an 812 MW Coal power plant in Louisa County, Iowa. Operated by MIDAMERICAN ENERGY CO, commissioned 1983.
Weather peril exposure
LOUISA is an 812 MW coal power plant in Louisa County, IA, operated by MIDAMERICAN ENERGY CO, commissioned in 1983. Louisa County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.6 of 5 at the 91st national percentile. Strong wind is the leading peril, rated Relatively Moderate by FEMA at the 98th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a coal plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Louisa County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Strong wind | Relatively Moderate | 98th | 4.9 of 5 | 6.3 |
| Hail | Relatively Low | 92nd | 4.7 of 5 | 4.4 |
| Heat wave | Relatively Low | 90th | 4.6 of 5 | 8.2 |
| Tornado | Relatively Low | 79th | 4.2 of 5 | 0.37 |
| Ice storm | Relatively Low | 71st | 3.9 of 5 | 0.50 |
| Riverine flooding | Very Low | 63rd | 3.5 of 5 | 2.3 |
| Wildfire | Very Low | 56th | 3.3 of 5 | <0.01 |
| Earthquake | Very Low | 45th | 2.8 of 5 | <0.01 |
| Lightning | Relatively Low | 37th | 2.5 of 5 | 45.4 |
| Winter weather | Very Low | 25th | 2.0 of 5 | 13.7 |
| Hurricane | Very Low | 11th | 1.4 of 5 | <0.01 |
Perils not assessed in Louisa 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 Louisa 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.