WESTON
OperatingHydro power plant
- Capacity
- 5 MW
- Primary fuel
- Hydro
- County
- Marathon County
- Operator
- WISCONSIN PUBLIC SERVICE CORP
- Status
- Operating
- Commissioned
- 1921
- EIA plant ID
- 4077
- Coordinates
- 44.9574, -89.6365
WESTON, a 5 MW Hydro power plant in Marathon County, Wisconsin. Operated by WISCONSIN PUBLIC SERVICE CORP, commissioned 1921.
Weather peril exposure
WESTON is a 5 MW hydro power plant in Marathon County, WI, operated by WISCONSIN PUBLIC SERVICE CORP, commissioned in 1921. Marathon County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.5 of 5 at the 62nd national percentile. Lightning 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 hydro plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Marathon County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Lightning | Relatively High | 99th | 5.0 of 5 | 31.9 |
| Hail | Relatively Moderate | 69th | 3.8 of 5 | 2.2 |
| Riverine flooding | Relatively Moderate | 53rd | 3.1 of 5 | 0.79 |
| Tornado | Relatively Moderate | 45th | 2.8 of 5 | 0.60 |
| Heat wave | Relatively Low | 30th | 2.2 of 5 | 1.4 |
| Winter weather | Relatively Moderate | 22nd | 1.9 of 5 | 16.2 |
| Wildfire | Very Low | 18th | 1.7 of 5 | <0.01 |
| Strong wind | Relatively Moderate | 18th | 1.7 of 5 | 2.1 |
| Ice storm | Relatively Low | 6th | 1.3 of 5 | 0.19 |
| Earthquake | Very Low | 2nd | 1.1 of 5 | <0.01 |
Perils not assessed in Marathon 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 "No Rating" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Marathon 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.