PORTOLA
OperatingOil power plant
- Capacity
- 6 MW
- Primary fuel
- Oil
- County
- Plumas County
- Operator
- SIERRA PACIFIC POWER CO
- Status
- Operating
- EIA plant ID
- 6524
- Coordinates
- 39.8169, -120.4633
PORTOLA, a 6 MW Oil power plant in Plumas County, California. Operated by SIERRA PACIFIC POWER CO. One of 1,114 power plants tracked in California on Bywatts.
Weather peril exposure
PORTOLA is a 6 MW oil power plant in Plumas County, CA, operated by SIERRA PACIFIC POWER CO. Plumas County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.0 of 5 at the 25th 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 an oil plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Plumas County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively High | 98th | 4.9 of 5 | 0.01 |
| Riverine flooding | Relatively Moderate | 97th | 4.9 of 5 | 0.46 |
| Earthquake | Relatively Moderate | 94th | 4.8 of 5 | 0.04 |
| Heat wave | Very Low | 53rd | 3.1 of 5 | 2.5 |
| Hail | Very Low | 16th | 1.6 of 5 | 0.13 |
| Winter weather | Relatively Moderate | 13th | 1.5 of 5 | 34.9 |
| Tornado | Very Low | 9th | 1.4 of 5 | 0.14 |
| Lightning | Relatively Moderate | 9th | 1.3 of 5 | 14.5 |
| Strong wind | Very Low | 5th | 1.2 of 5 | 0.07 |
Perils not assessed in Plumas 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 Plumas 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.