BIG HORN WIND II
OperatingWind power plant
- Capacity
- 50 MW
- Primary fuel
- Wind
- County
- Klickitat County
- Operator
- IBERDROLA RENEWABLES INC
- Status
- Operating
- Commissioned
- 2011
- EIA plant ID
- 57319
- Generators
- 1
- Technology
- Onshore Wind Turbine
- Net generation (2024)
- 111 GWh
- Capacity factor (2024, EIA nameplate)
- 25%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 45.9304, -120.2857
BIG HORN WIND II, a 50 MW Wind power plant in Klickitat County, Washington. Operated by IBERDROLA RENEWABLES INC, commissioned 2011.
How BIG HORN WIND II compares
With 50 MW of capacity, BIG HORN WIND II ranks 66th among the 126 operating power plants Bywatts maps in Washington and 17th of the 20 operating Wind plants in the state. It accounts for about 1.8% of Washington's operating Wind capacity and 0.2% of all operating capacity in the state. Nationally it is the 382nd-largest of the 708 operating Wind plants in the database. Commissioned in 2011, it is newer than 92% of the 125 operating Washington plants with a recorded commissioning year. Its operator, IBERDROLA RENEWABLES INC, runs 3 operating plants in Washington totaling 400 MW. It shares Klickitat County with 9 other operating plants, including GOLDENDALE GENERATING STATION and WINDY FLATS WIND PROJECT.
EIA-860 lists 1 generator at the site with 50 MW of nameplate capacity, all onshore wind turbine technology. Net generation was 111 GWh in 2024 (a 25% capacity factor), up 1% from 2022.
Grid neighborhood
The nearest named substation is BIG HORN (230 kV), about 2.3 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by BONNEVILLE POWER ADMINISTRATION, under 0.1 miles away. Another 19 operating power plants totaling 4,748 MW sit within 25 miles; the largest is JOHN DAY (2,160 MW, Hydro).
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
BIG HORN WIND II is a 50 MW wind power plant in Klickitat County, WA, operated by IBERDROLA RENEWABLES INC, commissioned in 2011. Klickitat County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.4 of 5 at the 36th national percentile. Wildfire is the leading peril, rated Relatively High by FEMA at the 100th 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.
Klickitat County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively High | 100th | 5.0 of 5 | 0.02 |
| Riverine flooding | Relatively Low | 89th | 4.5 of 5 | 0.25 |
| Earthquake | Relatively Low | 84th | 4.4 of 5 | 0.01 |
| Heat wave | Relatively Low | 63rd | 3.5 of 5 | 4.1 |
| Strong wind | Relatively Low | 32nd | 2.3 of 5 | 0.13 |
| Hail | Very Low | 18th | 1.7 of 5 | 0.14 |
| Ice storm | Relatively High | 12th | 1.5 of 5 | 0.21 |
| Winter weather | Relatively Moderate | 11th | 1.4 of 5 | 15.2 |
| Lightning | Relatively Low | 9th | 1.4 of 5 | 7.7 |
| Tornado | Very Low | 5th | 1.2 of 5 | 0.05 |
Perils not assessed in Klickitat 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 Klickitat 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.