FALLS RIVER HYDRO
OperatingHydro power plant
- Capacity
- 9 MW
- Primary fuel
- Hydro
- County
- Fremont County
- Operator
- MARYSVILLE HYDRO PARTNERS
- Status
- Operating
- Commissioned
- 1993
- EIA plant ID
- 54668
- Coordinates
- 44.0690, -111.2314
FALLS RIVER HYDRO, a 9 MW Hydro power plant in Fremont County, Idaho. Operated by MARYSVILLE HYDRO PARTNERS, commissioned 1993.
Weather peril exposure
FALLS RIVER HYDRO is a 9 MW hydro power plant in Fremont County, ID, operated by MARYSVILLE HYDRO PARTNERS, commissioned in 1993. Fremont County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.8 of 5 at the 19th national percentile. Earthquake is the leading peril, rated Relatively Low by FEMA at the 92nd 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.
Fremont County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively Low | 92nd | 4.7 of 5 | 0.04 |
| Wildfire | Relatively Low | 91st | 4.6 of 5 | <0.01 |
| Riverine flooding | Relatively Low | 84th | 4.3 of 5 | 0.50 |
| Heat wave | Very Low | 31st | 2.3 of 5 | 0.75 |
| Hail | Very Low | 30th | 2.2 of 5 | 0.25 |
| Winter weather | Relatively Moderate | 26th | 2.1 of 5 | 29.2 |
| Ice storm | Very Low | 19th | 1.8 of 5 | 0.01 |
| Strong wind | Very Low | 17th | 1.7 of 5 | 0.49 |
| Tornado | Very Low | 12th | 1.5 of 5 | 0.11 |
| Lightning | Relatively Moderate | 8th | 1.3 of 5 | 37.9 |
Perils not assessed in Fremont 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 |
Model hail, wind and flood exposure for Fremont 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.