TRINITY
OperatingHydro power plant
- Capacity
- 140 MW
- Primary fuel
- Hydro
- County
- Trinity County
- Operator
- U S BUREAU OF RECLAMATION
- Status
- Operating
- Commissioned
- 1964
- EIA plant ID
- 451
- Coordinates
- 40.7973, -122.7626
TRINITY, a 140 MW Hydro power plant in Trinity County, California. Operated by U S BUREAU OF RECLAMATION, commissioned 1964.
Weather peril exposure
TRINITY is a 140 MW hydro power plant in Trinity County, CA, operated by U S BUREAU OF RECLAMATION, commissioned in 1964. Trinity County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.7 of 5 at the 41st national percentile. Wildfire is the leading peril, rated Relatively High 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.
Trinity County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively High | 100th | 5.0 of 5 | 0.03 |
| Riverine flooding | Relatively Moderate | 99th | 5.0 of 5 | 0.21 |
| Earthquake | Relatively Low | 93rd | 4.7 of 5 | 0.03 |
| Heat wave | Relatively Low | 64th | 3.5 of 5 | 4.8 |
| Hail | Very Low | 14th | 1.5 of 5 | 0.09 |
| Tornado | Very Low | 6th | 1.2 of 5 | 0.03 |
| Lightning | Very Low | 5th | 1.2 of 5 | 9.6 |
| Winter weather | Very Low | 4th | 1.1 of 5 | 24.1 |
| Strong wind | Very Low | 1st | 1.0 of 5 | 0.01 |
Perils not assessed in Trinity 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 Trinity 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.