HAYPRESS
OperatingHydro power plant
- Capacity
- 10 MW
- Primary fuel
- Hydro
- County
- Sierra County
- Operator
- EIF HAYPRESS LLC
- Status
- Operating
- Commissioned
- 1988
- EIA plant ID
- 10253
- Coordinates
- 39.5657, -120.5817
HAYPRESS, a 10 MW Hydro power plant in Sierra County, California. Operated by EIF HAYPRESS LLC, commissioned 1988.
Weather peril exposure
HAYPRESS is a 10 MW hydro power plant in Sierra County, CA, operated by EIF HAYPRESS LLC, commissioned in 1988. Sierra County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.5 of 5 at the 38th national percentile. Wildfire is the leading peril, rated Relatively Moderate by FEMA at the 100th 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.
Sierra County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively Moderate | 100th | 5.0 of 5 | 0.02 |
| Riverine flooding | Relatively Low | 99th | 5.0 of 5 | 0.14 |
| Earthquake | Relatively Low | 93rd | 4.7 of 5 | 0.04 |
| Winter weather | Relatively Low | 59th | 3.4 of 5 | 36.6 |
| Heat wave | Very Low | 50th | 3.0 of 5 | 2.3 |
| Hail | Very Low | 17th | 1.7 of 5 | 0.17 |
| Tornado | Very Low | 7th | 1.3 of 5 | 0.06 |
| Strong wind | Very Low | 7th | 1.3 of 5 | 0.11 |
| Lightning | Relatively Moderate | 1st | 1.0 of 5 | 15.9 |
Perils not assessed in Sierra 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 Sierra 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.