ALTA WIND ENERGY CENTER IV
OperatingWind power plant
- Capacity
- 102 MW
- Primary fuel
- Wind
- County
- Kern County
- Operator
- TERRA-GEN OPERATING CO LLC
- Status
- Operating
- Commissioned
- 2011
- EIA plant ID
- 57293
- Coordinates
- 35.0086, -118.2422
ALTA WIND ENERGY CENTER IV, a 102 MW Wind power plant in Kern County, California. Operated by TERRA-GEN OPERATING CO LLC, commissioned 2011.
Weather peril exposure
ALTA WIND ENERGY CENTER IV is a 102 MW wind power plant in Kern County, CA, operated by TERRA-GEN OPERATING CO LLC, commissioned in 2011. Kern County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.7 of 5 at the 18th national percentile. Wildfire is the leading peril, rated Relatively High by FEMA at the 98th 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.
Kern County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively High | 98th | 4.9 of 5 | <0.01 |
| Earthquake | Relatively High | 97th | 4.9 of 5 | 0.08 |
| Heat wave | Relatively High | 79th | 4.2 of 5 | 7.5 |
| Riverine flooding | Relatively High | 55th | 3.2 of 5 | 5.6 |
| Strong wind | Relatively Low | 3rd | 1.1 of 5 | 0.06 |
| Tornado | Very Low | 3rd | 1.1 of 5 | 0.37 |
| Winter weather | Relatively Moderate | 3rd | 1.1 of 5 | 5.4 |
| Lightning | Relatively High | 2nd | 1.1 of 5 | 8.0 |
| Hail | Relatively Low | 0th | 1.0 of 5 | 0.10 |
Perils not assessed in Kern 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 Kern 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.