GRAYS FERRY COGENERATION
OperatingNatural Gas power plant
- Capacity
- 193 MW
- Primary fuel
- Natural Gas
- County
- Philadelphia County
- Operator
- GRAYS FERRY COGEN PARTNERSHIP
- Status
- Operating
- Commissioned
- 1997
- EIA plant ID
- 54785
- Coordinates
- 39.9422, -75.1877
GRAYS FERRY COGENERATION, a 193 MW Natural Gas power plant in Philadelphia County, Pennsylvania. Operated by GRAYS FERRY COGEN PARTNERSHIP, commissioned 1997.
Weather peril exposure
GRAYS FERRY COGENERATION is a 193 MW natural gas power plant in Philadelphia County, PA, operated by GRAYS FERRY COGEN PARTNERSHIP, commissioned in 1997. Philadelphia County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.6 of 5 at the 15th national percentile. Earthquake is the leading peril, rated Relatively High by FEMA at the 78th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Philadelphia County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively High | 78th | 4.1 of 5 | <0.01 |
| Hurricane | Relatively High | 66th | 3.6 of 5 | 0.09 |
| Riverine flooding | Very High | 59th | 3.4 of 5 | 5.8 |
| Coastal flooding | Relatively High | 58th | 3.3 of 5 | 3.7 |
| Heat wave | Very High | 35th | 2.4 of 5 | 11.1 |
| Hail | Relatively High | 27th | 2.1 of 5 | 2.5 |
| Winter weather | Very High | 27th | 2.1 of 5 | 10.5 |
| Wildfire | Very Low | 26th | 2.1 of 5 | <0.01 |
| Ice storm | Relatively High | 26th | 2.0 of 5 | 1.4 |
| Tornado | Relatively High | 22nd | 1.9 of 5 | 0.07 |
| Strong wind | Relatively High | 7th | 1.3 of 5 | 7.0 |
| Lightning | Relatively High | 0th | 1.0 of 5 | 35.7 |
Model hail, wind and flood exposure for Philadelphia 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.