CALDERWOOD
OperatingHydro power plant
- Capacity
- 157 MW
- Primary fuel
- Hydro
- County
- Blount County
- Operator
- BROOKFIELD RENEWABLE POWER
- Status
- Operating
- Commissioned
- 1930
- EIA plant ID
- 54900
- Coordinates
- 35.4940, -83.9888
CALDERWOOD, a 157 MW Hydro power plant in Blount County, Tennessee. Operated by BROOKFIELD RENEWABLE POWER, commissioned 1930.
Weather peril exposure
CALDERWOOD is a 157 MW hydro power plant in Blount County, TN, operated by BROOKFIELD RENEWABLE POWER, commissioned in 1930. Blount County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.5 of 5 at the 14th national percentile. Lightning is the leading peril, rated Relatively High by FEMA at the 99th 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.
Blount County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Lightning | Relatively High | 99th | 5.0 of 5 | 56.7 |
| Earthquake | Relatively Moderate | 90th | 4.6 of 5 | <0.01 |
| Wildfire | Relatively Low | 70th | 3.8 of 5 | <0.01 |
| Ice storm | Relatively Moderate | 62nd | 3.5 of 5 | 0.33 |
| Winter weather | Relatively Moderate | 61st | 3.4 of 5 | 8.0 |
| Tornado | Relatively Moderate | 46th | 2.9 of 5 | 0.18 |
| Hurricane | Very Low | 44th | 2.8 of 5 | 0.02 |
| Riverine flooding | Relatively Moderate | 33rd | 2.3 of 5 | 1.0 |
| Hail | Relatively Low | 22nd | 1.9 of 5 | 3.1 |
| Strong wind | Relatively Moderate | 21st | 1.8 of 5 | 4.6 |
| Heat wave | Relatively Low | 12th | 1.5 of 5 | 0.65 |
Perils not assessed in Blount 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 |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Blount 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.