CHESTER GENERATING STATION
OperatingOil power plant
- Capacity
- 56 MW
- Primary fuel
- Oil
- County
- Chester County
- Operator
- EXELON POWER
- Status
- Operating
- Commissioned
- 1969
- EIA plant ID
- 3157
- Coordinates
- 39.8302, -75.3837
CHESTER GENERATING STATION, a 56 MW Oil power plant in Chester County, Pennsylvania. Operated by EXELON POWER, commissioned 1969.
Weather peril exposure
CHESTER GENERATING STATION is a 56 MW oil power plant in Chester County, PA, operated by EXELON POWER, commissioned in 1969. Chester County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.1 of 5 at the 3rd national percentile. Hurricane is the leading peril, rated Relatively Moderate by FEMA at the 66th 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.
Chester County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively Moderate | 66th | 3.6 of 5 | 0.08 |
| Earthquake | Relatively Moderate | 64th | 3.6 of 5 | <0.01 |
| Winter weather | Very High | 60th | 3.4 of 5 | 12.1 |
| Ice storm | Relatively High | 33rd | 2.3 of 5 | 1.3 |
| Strong wind | Relatively High | 28th | 2.1 of 5 | 7.2 |
| Tornado | Relatively Moderate | 26th | 2.1 of 5 | 0.45 |
| Lightning | Relatively High | 25th | 2.0 of 5 | 35.7 |
| Riverine flooding | Relatively High | 24th | 2.0 of 5 | 5.5 |
| Wildfire | Very Low | 14th | 1.6 of 5 | <0.01 |
| Hail | Relatively Low | 9th | 1.4 of 5 | 2.8 |
| Heat wave | Relatively Moderate | 8th | 1.3 of 5 | 9.2 |
Perils not assessed in Chester County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "No Rating" for this county |
Model hail, wind and flood exposure for Chester 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.