LAKE MILLS
OperatingOil power plant
- Capacity
- 19 MW
- Primary fuel
- Oil
- County
- Winnebago County
- Operator
- CITY OF LAKE MILLS
- Status
- Operating
- Commissioned
- 1962
- EIA plant ID
- 1154
- Coordinates
- 43.4182, -93.5346
LAKE MILLS, a 19 MW Oil power plant in Winnebago County, Iowa. Operated by CITY OF LAKE MILLS, commissioned 1962.
Weather peril exposure
LAKE MILLS is a 19 MW oil power plant in Winnebago County, IA, operated by CITY OF LAKE MILLS, commissioned in 1962. Winnebago County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.5 of 5 at the 62nd national percentile. Heat wave is the leading peril, rated Very Low by FEMA at the 98th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to an oil plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Winnebago County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Heat wave | Very Low | 98th | 4.9 of 5 | 3.5 |
| Tornado | Relatively Low | 94th | 4.8 of 5 | 0.34 |
| Lightning | Very Low | 91st | 4.6 of 5 | 40.4 |
| Strong wind | Relatively Low | 86th | 4.4 of 5 | 3.7 |
| Winter weather | Relatively Moderate | 76th | 4.1 of 5 | 19.7 |
| Hail | Relatively Low | 65th | 3.6 of 5 | 4.4 |
| Riverine flooding | Very Low | 45th | 2.8 of 5 | 1.2 |
| Ice storm | Very Low | 43rd | 2.7 of 5 | 0.60 |
| Wildfire | Very Low | 23rd | 1.9 of 5 | <0.01 |
| Earthquake | Very Low | 10th | 1.4 of 5 | <0.01 |
Perils not assessed in Winnebago 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 |
|---|---|
| Hurricane | FEMA rating is "Not Applicable" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Winnebago 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.