ELROY
OperatingOil power plant
- Capacity
- 7 MW
- Primary fuel
- Oil
- County
- Juneau County
- Operator
- CITY OF ELROY - (WI)
- Status
- Operating
- Commissioned
- 1973
- EIA plant ID
- 4113
- Coordinates
- 43.7396, -90.2677
ELROY, a 7 MW Oil power plant in Juneau County, Wisconsin. Operated by CITY OF ELROY - (WI), commissioned 1973.
Weather peril exposure
ELROY is a 7 MW oil power plant in Juneau County, WI, operated by CITY OF ELROY - (WI), commissioned in 1973. Juneau County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.4 of 5 at the 84th national percentile. Hail is the leading peril, rated Relatively Moderate by FEMA at the 87th 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.
Juneau County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hail | Relatively Moderate | 87th | 4.5 of 5 | 3.2 |
| Riverine flooding | Relatively Low | 83rd | 4.3 of 5 | 1.1 |
| Lightning | Relatively Low | 73rd | 3.9 of 5 | 34.3 |
| Heat wave | Relatively Moderate | 69th | 3.8 of 5 | 3.1 |
| Tornado | Relatively Moderate | 59th | 3.4 of 5 | 0.39 |
| Strong wind | Relatively Moderate | 38th | 2.5 of 5 | 3.0 |
| Wildfire | Very Low | 38th | 2.5 of 5 | <0.01 |
| Winter weather | Relatively Low | 18th | 1.7 of 5 | 16.3 |
| Earthquake | Very Low | 10th | 1.4 of 5 | <0.01 |
| Ice storm | Very Low | 4th | 1.1 of 5 | 0.07 |
| Hurricane | Very Low | 2nd | 1.1 of 5 | <0.01 |
Perils not assessed in Juneau 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 Juneau 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.