JOCASSEE
OperatingHydro power plant
- Capacity
- 612 MW
- Primary fuel
- Hydro
- County
- Pickens County
- Operator
- DUKE ENERGY CAROLINAS, LLC
- Status
- Operating
- Commissioned
- 1973
- EIA plant ID
- 3262
- Coordinates
- 34.9597, -82.9146
JOCASSEE, a 612 MW Hydro power plant in Pickens County, South Carolina. Operated by DUKE ENERGY CAROLINAS, LLC, commissioned 1973.
Weather peril exposure
JOCASSEE is a 612 MW hydro power plant in Pickens County, SC, operated by DUKE ENERGY CAROLINAS, LLC, commissioned in 1973. Pickens County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.0 of 5 at the 26th national percentile. Lightning is the leading peril, rated Relatively High by FEMA at the 89th 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.
Pickens County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Lightning | Relatively High | 89th | 4.5 of 5 | 61.6 |
| Ice storm | Relatively High | 86th | 4.4 of 5 | 1.7 |
| Earthquake | Relatively Low | 75th | 4.0 of 5 | <0.01 |
| Hurricane | Relatively Low | 59th | 3.4 of 5 | 0.04 |
| Riverine flooding | Relatively Moderate | 52nd | 3.1 of 5 | 0.96 |
| Hail | Relatively Low | 40th | 2.6 of 5 | 4.5 |
| Wildfire | Very Low | 38th | 2.5 of 5 | <0.01 |
| Tornado | Relatively Low | 22nd | 1.9 of 5 | 0.27 |
| Heat wave | Relatively Low | 13th | 1.5 of 5 | 1.2 |
| Strong wind | Relatively Moderate | 12th | 1.5 of 5 | 2.0 |
| Winter weather | Very Low | 6th | 1.2 of 5 | 4.8 |
Perils not assessed in Pickens 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 Pickens 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.