MCMANUS PLANT
OperatingOil power plant
- Capacity
- 644 MW
- Primary fuel
- Oil
- County
- Glynn County
- Operator
- GEORGIA POWER CO
- Status
- Operating
- Commissioned
- 1964
- EIA plant ID
- 715
- Coordinates
- 31.2132, -81.5461
MCMANUS PLANT, a 644 MW Oil power plant in Glynn County, Georgia. Operated by GEORGIA POWER CO, commissioned 1964.
Weather peril exposure
MCMANUS PLANT is a 644 MW oil power plant in Glynn County, GA, operated by GEORGIA POWER CO, commissioned in 1964. Glynn County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.7 of 5 at the 69th national percentile. Hurricane is the leading peril, rated Relatively High by FEMA at the 94th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to an oil plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Glynn County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively High | 94th | 4.8 of 5 | 0.34 |
| Wildfire | Relatively Moderate | 80th | 4.2 of 5 | <0.01 |
| Coastal flooding | Relatively High | 68th | 3.7 of 5 | 3.6 |
| Earthquake | Relatively Low | 65th | 3.6 of 5 | <0.01 |
| Lightning | Relatively Moderate | 53rd | 3.1 of 5 | 65.9 |
| Ice storm | Relatively Moderate | 53rd | 3.1 of 5 | 0.30 |
| Winter weather | Very Low | 33rd | 2.3 of 5 | 0.25 |
| Hail | Relatively Low | 30th | 2.2 of 5 | 1.6 |
| Heat wave | Relatively Moderate | 29th | 2.1 of 5 | 4.8 |
| Tornado | Relatively Low | 22nd | 1.9 of 5 | 0.20 |
| Strong wind | Relatively Moderate | 3rd | 1.1 of 5 | 0.82 |
| Riverine flooding | Relatively Low | 2nd | 1.1 of 5 | 0.54 |
Model hail, wind and flood exposure for Glynn 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.