DOLPHUS M GRAINGER
OperatingCoal power plant
- Primary fuel
- Coal
- County
- Horry County
- Operator
- SOUTH CAROLINA PUBLIC SERVICE AUTHORITY
- Status
- Operating
- EIA plant ID
- 3317
- Coordinates
- 33.8257, -79.0526
DOLPHUS M GRAINGER, a Coal power plant in Horry County, South Carolina. Operated by SOUTH CAROLINA PUBLIC SERVICE AUTHORITY.
Weather peril exposure
DOLPHUS M GRAINGER is a coal power plant in Horry County, SC, operated by SOUTH CAROLINA PUBLIC SERVICE AUTHORITY. Horry County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.4 of 5 at the 85th national percentile. Hurricane is the leading peril, rated Very High by FEMA at the 98th 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.
Horry County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Very High | 98th | 4.9 of 5 | 0.30 |
| Lightning | Relatively High | 94th | 4.8 of 5 | 58.9 |
| Earthquake | Relatively Moderate | 85th | 4.4 of 5 | <0.01 |
| Coastal flooding | Relatively High | 65th | 3.6 of 5 | 3.6 |
| Ice storm | Relatively High | 64th | 3.6 of 5 | 0.63 |
| Wildfire | Relatively Moderate | 56th | 3.3 of 5 | <0.01 |
| Tornado | Relatively High | 43rd | 2.7 of 5 | 0.61 |
| Heat wave | Relatively Moderate | 41st | 2.7 of 5 | 9.2 |
| Winter weather | Relatively High | 38th | 2.5 of 5 | 1.3 |
| Riverine flooding | Relatively Moderate | 12th | 1.5 of 5 | 2.0 |
| Strong wind | Relatively High | 11th | 1.4 of 5 | 2.8 |
| Hail | Relatively Low | 10th | 1.4 of 5 | 2.7 |
Model hail, wind and flood exposure for Horry 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.