HORSE BUTTE WIND I, LLC
OperatingWind power plant
- Capacity
- 58 MW
- Primary fuel
- Wind
- County
- Bonneville County
- Operator
- HORSE BUTTE WIND I, LLC
- Status
- Operating
- Commissioned
- 2012
- EIA plant ID
- 57890
- Generators
- 1
- Technology
- Onshore Wind Turbine
- Net generation (2024)
- 167 GWh
- Capacity factor (2024, EIA nameplate)
- 33%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 43.4011, -111.7327
HORSE BUTTE WIND I, LLC, a 58 MW Wind power plant in Bonneville County, Idaho. Operated by HORSE BUTTE WIND I, LLC, commissioned 2012.
How HORSE BUTTE WIND I, LLC compares
With 58 MW of capacity, HORSE BUTTE WIND I, LLC ranks 21st among the 123 operating power plants Bywatts maps in Idaho and 5th of the 32 operating Wind plants in the state. It accounts for about 6.0% of Idaho's operating Wind capacity and 1.2% of all operating capacity in the state. Nationally it is the 364th-largest of the 708 operating Wind plants in the database. Commissioned in 2012, it is newer than 90% of the 121 operating Idaho plants with a recorded commissioning year. It shares Bonneville County with 9 other operating plants, including PALISADES and GOSHEN PHASE II.
EIA-860 lists 1 generator at the site with 58 MW of nameplate capacity, all onshore wind turbine technology. Net generation was 167 GWh in 2024 (a 33% capacity factor), up 3% from 2022.
Grid neighborhood
The nearest named substation is CATTLE CREEK (115 kV), about 1.5 miles away; the closest transmission line found within 10 miles is a 115 kV line owned by BONNEVILLE POWER ADMINISTRATION, under 0.1 miles away. Another 8 operating power plants totaling 359 MW sit within 25 miles; the largest is GOSHEN PHASE II (125 MW, Wind).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
HORSE BUTTE WIND I, LLC is a 58 MW wind power plant in Bonneville County, ID, operated by HORSE BUTTE WIND I, LLC, commissioned in 2012. Bonneville County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.6 of 5 at the 64th national percentile. Wildfire is the leading peril, rated Relatively Moderate by FEMA at the 94th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a wind plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Bonneville County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively Moderate | 94th | 4.8 of 5 | <0.01 |
| Earthquake | Relatively Moderate | 92nd | 4.7 of 5 | 0.03 |
| Hail | Relatively Moderate | 70th | 3.8 of 5 | 0.43 |
| Riverine flooding | Relatively Moderate | 53rd | 3.1 of 5 | 0.61 |
| Heat wave | Relatively Moderate | 45th | 2.8 of 5 | 0.65 |
| Lightning | Relatively High | 31st | 2.2 of 5 | 36.0 |
| Ice storm | Very Low | 17th | 1.7 of 5 | 0.01 |
| Strong wind | Relatively Low | 13th | 1.5 of 5 | 0.76 |
| Tornado | Very Low | 11th | 1.4 of 5 | 0.18 |
| Winter weather | Relatively Moderate | 3rd | 1.1 of 5 | 24.3 |
Perils not assessed in Bonneville 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 Bonneville 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.