OSAGE
OperatingCoal power plant
- Capacity
- 35 MW
- Primary fuel
- Coal
- County
- Weston County
- Operator
- BLACK HILLS POWER INC
- Status
- Operating
- EIA plant ID
- 4151
- Coordinates
- 43.9697, -104.4122
OSAGE, a 35 MW Coal power plant in Weston County, Wyoming. Operated by BLACK HILLS POWER INC. One of 63 power plants tracked in Wyoming on Bywatts.
Weather peril exposure
OSAGE is a 35 MW coal power plant in Weston County, WY, operated by BLACK HILLS POWER INC. Weston County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.9 of 5 at the 97th national percentile. Hail 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.
Weston County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hail | Relatively Moderate | 98th | 4.9 of 5 | 4.5 |
| Winter weather | Relatively Low | 93rd | 4.7 of 5 | 15.5 |
| Wildfire | Relatively Low | 92nd | 4.7 of 5 | <0.01 |
| Lightning | Very Low | 87th | 4.5 of 5 | 43.7 |
| Heat wave | Very Low | 76th | 4.0 of 5 | 0.20 |
| Earthquake | Very Low | 58th | 3.3 of 5 | <0.01 |
| Strong wind | Very Low | 56th | 3.2 of 5 | 1.7 |
| Tornado | Very Low | 39th | 2.6 of 5 | 0.57 |
| Ice storm | Very Low | 21st | 1.8 of 5 | 0.01 |
| Riverine flooding | Very Low | 16th | 1.6 of 5 | 0.64 |
Perils not assessed in Weston 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 Weston 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.