AV SOLAR RANCH ONE
OperatingSolar power plant
- Capacity
- 253 MW
- Primary fuel
- Solar
- County
- Los Angeles County
- Operator
- FIRST SOLAR ENERGY LLC
- Status
- Operating
- Commissioned
- 2014
- EIA plant ID
- 57378
- Generators
- 1
- Technology
- Solar Photovoltaic
- Net generation (2024)
- 566 GWh
- Capacity factor (2024, EIA nameplate)
- 25%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 34.7803, -118.4244
AV SOLAR RANCH ONE, a 253 MW Solar power plant in Los Angeles County, California. Operated by FIRST SOLAR ENERGY LLC, commissioned 2014.
How AV SOLAR RANCH ONE compares
With 253 MW of capacity, AV SOLAR RANCH ONE ranks 59th among the 874 operating power plants Bywatts maps in California and 8th of the 303 operating Solar plants in the state. It accounts for about 3.5% of California's operating Solar capacity and 0.4% of all operating capacity in the state. Nationally it is the 11th-largest of the 639 operating Solar plants in the database. Commissioned in 2014, it is newer than 80% of the 859 operating California plants with a recorded commissioning year. Its operator, FIRST SOLAR ENERGY LLC, runs 11 operating plants in California totaling 1,678 MW. It shares Los Angeles County with 110 other operating plants, including AES ALAMITOS LLC and CASTAIC.
EIA-860 lists 1 generator at the site with 253 MW of nameplate capacity, all solar photovoltaic technology. Net generation was 566 GWh in 2024 (a 25% capacity factor), down 7% from 2022.
Grid neighborhood
The nearest named substation is NEENACH, about 4.4 miles away; the closest transmission line found within 10 miles is a 500 kV line owned by AZUSA LIGHT & POWER, about 2.1 miles away. Another 80 operating power plants totaling 5,618 MW sit within 25 miles; the largest is CASTAIC (1,682 MW, Hydro). Within 50 miles is one mapped data center, Fireline Data Center in Los Angeles, about 49.8 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
AV SOLAR RANCH ONE is a 253 MW solar power plant in Los Angeles County, CA, operated by FIRST SOLAR ENERGY LLC, commissioned in 2014. Los Angeles County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.0 of 5 at the 25th national percentile. Earthquake is the leading peril, rated Very High by FEMA at the 99th percentile.
Los Angeles County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Share of modeled loss | Events per year |
|---|---|---|---|---|---|
| Earthquake | Very High | 99th | 5.0 of 5 | 26% | 0.09 |
| Wildfire | Very High | 98th | 4.9 of 5 | 46% | <0.01 |
| Riverine flooding | Very High | 92nd | 4.7 of 5 | 21% | 4.0 |
| Heat wave | Relatively High | 50th | 3.0 of 5 | <1% | 9.5 |
| Coastal flooding | Relatively High | 34th | 2.4 of 5 | 1% | 2.2 |
| Tornado | Relatively High | 13th | 1.5 of 5 | 1% | 0.49 |
| Hail | Relatively Moderate | 12th | 1.5 of 5 | 6% | 0.10 |
| Strong wind | Relatively Moderate | 0th | 1.0 of 5 | <1% | 0.15 |
| Winter weather | Relatively Moderate | 0th | 1.0 of 5 | <1% | 6.6 |
| Lightning | Very High | 0th | 1.0 of 5 | <1% | 8.4 |
Perils not assessed in Los Angeles 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 "No Rating" for this county |
| Ice storm | FEMA rating is "Not Applicable" for this county |
Hail exposure and deductible structure
Hail scores 1.5 of 5, which sits in the 1% to 2% percentage deductible range carriers are quoting for that exposure. Named windstorm and severe convective wind score 1.5 of 5, indicating a 1% to 1% wind deductible. Ranges, not single figures. The final structure is set by the carrier.
Percentage hail deductible range: 1% to 2% of insured value. Wind deductible range: 1% to 1%. These are the structures commonly seen at this exposure, not an offer and not a rate.
Modeled annual loss for a 253 MW solar array
At an assumed replacement value of $0.90 per watt, or $227.7M insured, the modeled expected annual loss for a fixed tilt ground mount array in Los Angeles County is $89,243 a year, $353 per MW, 0.04% of insured value.
Heat is modeled as a production risk rather than a property loss: 1.5% of annual yield in this county.
Insurability signal: Standard. Wildfire carries 46% of modeled loss.
Model hail, wind and flood exposure for Los Angeles 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, and the modeled loss applies the Bywatts solar vulnerability layer. 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. The solar vulnerability layer that turns FEMA building loss into modeled solar loss was derived by Bywatts and revised on physical reasoning. It has not been reviewed by a practising underwriter.