C J STRIKE
OperatingHydro power plant
- Capacity
- 83 MW
- Primary fuel
- Hydro
- County
- Owyhee County
- Operator
- IDAHO POWER CO
- Status
- Operating
- Commissioned
- 1952
- EIA plant ID
- 812
- Generators
- 3
- Technology
- Conventional Hydroelectric
- Net generation (2024)
- 422 GWh
- Capacity factor (2024, EIA nameplate)
- 58%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 42.9450, -115.9779
C J STRIKE, an 83 MW Hydro power plant in Owyhee County, Idaho. Operated by IDAHO POWER CO, commissioned 1952.
How C J STRIKE compares
With 83 MW of capacity, C J STRIKE ranks 15th among the 123 operating power plants Bywatts maps in Idaho and 7th of the 70 operating Hydro plants in the state. It accounts for about 3.3% of Idaho's operating Hydro capacity and 1.7% of all operating capacity in the state. Nationally it is the 206th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1952, it is older than 78% of the 121 operating Idaho plants with a recorded commissioning year. Its operator, IDAHO POWER CO, runs 20 operating plants in Idaho totaling 1,894 MW.
EIA-860 lists 3 generators at the site with 83 MW of nameplate capacity, all conventional hydroelectric technology. Net generation was 422 GWh in 2024 (a 58% capacity factor), up 23% from 2022.
Grid neighborhood
The nearest named substation is STRIKER DAM (138 kV), under 0.1 miles away; the closest transmission line found within 10 miles is a 138 kV line owned by IDAHO POWER CO, under 0.1 miles away. Another 2 operating power plants totaling 446 MW sit within 25 miles; the largest is EVANDER ANDREWS POWER COMPLEX (273 MW, Natural Gas). Within 50 miles is one mapped data center, Syringa Networks Boise in Boise, about 44.5 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology
Weather peril exposure
C J STRIKE is an 83 MW hydro power plant in Owyhee County, ID, operated by IDAHO POWER CO, commissioned in 1952. Owyhee County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.1 of 5 at the 27th national percentile. Wildfire is the leading peril, rated Relatively Moderate 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.
Owyhee County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively Moderate | 99th | 5.0 of 5 | 0.02 |
| Riverine flooding | Relatively Low | 95th | 4.8 of 5 | 0.89 |
| Winter weather | Relatively Moderate | 78th | 4.1 of 5 | 12.2 |
| Heat wave | Relatively Low | 61st | 3.5 of 5 | 2.9 |
| Earthquake | Very Low | 41st | 2.7 of 5 | <0.01 |
| Hail | Very Low | 20th | 1.8 of 5 | 0.14 |
| Lightning | Very Low | 11th | 1.4 of 5 | 22.6 |
| Tornado | Very Low | 8th | 1.3 of 5 | 0.28 |
| Ice storm | Very Low | 6th | 1.3 of 5 | 0.05 |
| Strong wind | Very Low | 5th | 1.2 of 5 | 0.19 |
Perils not assessed in Owyhee 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 Owyhee 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.