WILLIAM F WYMAN
OperatingOil power plant
- Capacity
- 846 MW
- Primary fuel
- Oil
- County
- Cumberland County
- Operator
- FPL ENERGY WYMAN LLC
- Status
- Operating
- Commissioned
- 1957
- EIA plant ID
- 1507
- Coordinates
- 43.7511, -70.1568
WILLIAM F WYMAN, an 846 MW Oil power plant in Cumberland County, Maine. Operated by FPL ENERGY WYMAN LLC, commissioned 1957.
Weather peril exposure
WILLIAM F WYMAN is an 846 MW oil power plant in Cumberland County, ME, operated by FPL ENERGY WYMAN LLC, commissioned in 1957. Cumberland County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.1 of 5 at the 53rd national percentile. Coastal flooding is the leading peril, rated Relatively Moderate by FEMA at the 93rd 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.
Cumberland County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Coastal flooding | Relatively Moderate | 93rd | 4.7 of 5 | 8.2 |
| Ice storm | Very High | 91st | 4.7 of 5 | 1.8 |
| Hurricane | Relatively Moderate | 84th | 4.4 of 5 | 0.12 |
| Winter weather | Very High | 76th | 4.0 of 5 | 26.5 |
| Earthquake | Relatively Low | 63rd | 3.5 of 5 | <0.01 |
| Lightning | Relatively High | 53rd | 3.1 of 5 | 18.1 |
| Hail | Relatively Moderate | 45th | 2.8 of 5 | 1.4 |
| Wildfire | Very Low | 8th | 1.3 of 5 | <0.01 |
| Strong wind | Relatively Moderate | 7th | 1.3 of 5 | 0.39 |
| Heat wave | Relatively Low | 6th | 1.2 of 5 | 3.3 |
| Riverine flooding | Relatively Low | 4th | 1.2 of 5 | 2.0 |
| Tornado | Very Low | 2nd | 1.1 of 5 | 0.10 |
Model hail, wind and flood exposure for Cumberland 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.