J S EASTWOOD
OperatingHydro power plant
- Capacity
- 200 MW
- Primary fuel
- Hydro
- County
- Fresno County
- Operator
- SOUTHERN CALIFORNIA EDISON CO
- Status
- Operating
- Commissioned
- 1987
- EIA plant ID
- 104
- Generators
- 1
- Technology
- Hydroelectric Pumped Storage
- Net generation (2024)
- 17 GWh
- Capacity factor (2024, EIA nameplate)
- 1%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 37.1479, -119.2567
J S EASTWOOD, a 200 MW Hydro power plant in Fresno County, California. Operated by SOUTHERN CALIFORNIA EDISON CO, commissioned 1987.
How J S EASTWOOD compares
With 200 MW of capacity, J S EASTWOOD ranks 72nd among the 874 operating power plants Bywatts maps in California and 12th of the 195 operating Hydro plants in the state. It accounts for about 1.5% of California's operating Hydro capacity and 0.3% of all operating capacity in the state. Nationally it is the 89th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1987, it is older than 69% of the 859 operating California plants with a recorded commissioning year. Its operator, SOUTHERN CALIFORNIA EDISON CO, runs 22 operating plants in California totaling 2,341 MW. It shares Fresno County with 42 other operating plants, including HELMS PUMPED STORAGE and PANOCHE ENERGY CENTER.
EIA-860 lists 1 generator at the site with 200 MW of nameplate capacity, all hydroelectric pumped storage technology. Net generation was 17 GWh in 2024 (a 1% capacity factor), down 88% from 2022.
Grid neighborhood
The nearest named substation is EASTWOOD (230 kV), under 0.1 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by AZUSA LIGHT & POWER, under 0.1 miles away. Another 19 operating power plants totaling 2,734 MW sit within 25 miles; the largest is HELMS PUMPED STORAGE (1,212 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
J S EASTWOOD is a 200 MW hydro power plant in Fresno County, CA, operated by SOUTHERN CALIFORNIA EDISON CO, commissioned in 1987. Fresno County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.6 of 5 at the 15th national percentile. Wildfire is the leading peril, rated Relatively High by FEMA at the 96th 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.
Fresno County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively High | 96th | 4.8 of 5 | <0.01 |
| Earthquake | Relatively High | 94th | 4.8 of 5 | 0.11 |
| Heat wave | Relatively High | 92nd | 4.7 of 5 | 7.0 |
| Riverine flooding | Relatively High | 60th | 3.4 of 5 | 4.1 |
| Hail | Relatively High | 18th | 1.7 of 5 | 0.17 |
| Lightning | Relatively High | 14th | 1.6 of 5 | 12.8 |
| Tornado | Relatively Low | 12th | 1.5 of 5 | 0.52 |
| Winter weather | Very Low | 2nd | 1.1 of 5 | 11.1 |
| Strong wind | Very Low | 1st | 1.0 of 5 | 0.04 |
Perils not assessed in Fresno 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 |
| Ice storm | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Fresno 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.