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
- Generators
- 3
- Technology
- Petroleum Liquids
- Net generation (2024)
- 0.128 GWh
- Capacity factor (2024, EIA nameplate)
- under 0.1%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 39.8302, -75.3837
CHESTER GENERATING STATION, a 56 MW Oil power plant in Chester County, Pennsylvania. Operated by EXELON POWER, commissioned 1969.
How CHESTER GENERATING STATION compares
With 56 MW of capacity, CHESTER GENERATING STATION ranks 69th among the 170 operating power plants Bywatts maps in Pennsylvania and 9th of the 17 operating Oil plants in the state. It accounts for about 1.8% of Pennsylvania's operating Oil capacity and 0.1% of all operating capacity in the state. Nationally it is the 70th-largest of the 544 operating Oil plants in the database. Commissioned in 1969, it is older than 86% of the 168 operating Pennsylvania plants with a recorded commissioning year. Its operator, EXELON POWER, runs 11 operating plants in Pennsylvania totaling 2,992 MW. It shares Chester County with 4 other operating plants, including SECCRA COMMUNITY LANDFILL and PICKERING SOLAR.
EIA-860 lists 3 generators at the site with 56 MW of nameplate capacity, all petroleum liquids technology. Net generation was 0.128 GWh in 2024 (a capacity factor under 0.1%).
Grid neighborhood
The nearest named substation is DELCO TAP (230 kV), about 0.2 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by PECO ENERGY CO, about 0.2 miles away. Another 36 operating power plants totaling 5,891 MW sit within 25 miles; the largest is HAY ROAD (1,193 MW, Natural Gas). Within 50 miles are 4 mapped data centers; the nearest is IPR Wilmington CCC in Wilmington, about 10.4 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology
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.