FIRSTENERGY SENECA
OperatingHydro power plant
- Capacity
- 469 MW
- Primary fuel
- Hydro
- County
- Warren County
- Operator
- FIRSTENERGY GENERATION CORP
- Status
- Operating
- Commissioned
- 1970
- EIA plant ID
- 8225
- Coordinates
- 41.8389, -79.0056
FIRSTENERGY SENECA, a 469 MW Hydro power plant in Warren County, Pennsylvania. Operated by FIRSTENERGY GENERATION CORP, commissioned 1970.
Weather peril exposure
FIRSTENERGY SENECA is a 469 MW hydro power plant in Warren County, PA, operated by FIRSTENERGY GENERATION CORP, commissioned in 1970. Warren County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.3 of 5 at the 8th national percentile. Riverine flooding is the leading peril, rated Relatively Moderate by FEMA at the 98th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a hydro plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Warren County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Relatively Moderate | 98th | 4.9 of 5 | 1.0 |
| Winter weather | Relatively Low | 61st | 3.4 of 5 | 26.5 |
| Hurricane | Very Low | 56th | 3.2 of 5 | 0.03 |
| Strong wind | Relatively Moderate | 36th | 2.4 of 5 | 1.8 |
| Tornado | Very Low | 20th | 1.8 of 5 | 0.23 |
| Ice storm | Very Low | 14th | 1.6 of 5 | 0.70 |
| Earthquake | Very Low | 13th | 1.5 of 5 | <0.01 |
| Hail | Very Low | 12th | 1.5 of 5 | 1.5 |
| Lightning | Relatively Moderate | 11th | 1.5 of 5 | 35.9 |
| Wildfire | Very Low | 10th | 1.4 of 5 | <0.01 |
| Heat wave | Very Low | 2nd | 1.1 of 5 | 0.42 |
Perils not assessed in Warren 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 "Not Applicable" for this county |
Model hail, wind and flood exposure for Warren 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.