WINYAH
OperatingCoal power plant
- Capacity
- 1,260 MW
- Primary fuel
- Coal
- County
- Georgetown County
- Operator
- SOUTH CAROLINA PUBLIC SERVICE AUTHORITY
- Status
- Operating
- Commissioned
- 1975
- EIA plant ID
- 6249
- Coordinates
- 33.3302, -79.3577
WINYAH, a 1,260 MW Coal power plant in Georgetown County, South Carolina. Operated by SOUTH CAROLINA PUBLIC SERVICE AUTHORITY, commissioned 1975.
Weather peril exposure
WINYAH is a 1,260 MW coal power plant in Georgetown County, SC, operated by SOUTH CAROLINA PUBLIC SERVICE AUTHORITY, commissioned in 1975. Georgetown County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.7 of 5 at the 93rd national percentile. Hurricane is the leading peril, rated Very High by FEMA at the 99th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a coal plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Georgetown County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Very High | 99th | 5.0 of 5 | 0.33 |
| Earthquake | Relatively Moderate | 87th | 4.5 of 5 | <0.01 |
| Wildfire | Relatively Moderate | 74th | 4.0 of 5 | <0.01 |
| Coastal flooding | Relatively High | 72nd | 3.9 of 5 | 3.4 |
| Lightning | Relatively High | 68th | 3.7 of 5 | 60.1 |
| Ice storm | Relatively Moderate | 65th | 3.6 of 5 | 0.72 |
| Heat wave | Relatively Moderate | 42nd | 2.7 of 5 | 9.2 |
| Hail | Relatively Low | 35th | 2.4 of 5 | 2.5 |
| Tornado | Relatively Low | 25th | 2.0 of 5 | 0.39 |
| Riverine flooding | Relatively Moderate | 20th | 1.8 of 5 | 1.1 |
| Strong wind | Relatively Low | 19th | 1.7 of 5 | 2.1 |
| Winter weather | Relatively Low | 2nd | 1.1 of 5 | 1.00 |
Model hail, wind and flood exposure for Georgetown 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.