LEWISTON NIAGARA
OperatingHydro power plant
- Capacity
- 240 MW
- Primary fuel
- Hydro
- County
- Niagara County
- Operator
- NEW YORK POWER AUTHORITY
- Status
- Operating
- Commissioned
- 1961
- EIA plant ID
- 2692
- Coordinates
- 43.1415, -79.0219
LEWISTON NIAGARA, a 240 MW Hydro power plant in Niagara County, New York. Operated by NEW YORK POWER AUTHORITY, commissioned 1961.
Weather peril exposure
LEWISTON NIAGARA is a 240 MW hydro power plant in Niagara County, NY, operated by NEW YORK POWER AUTHORITY, commissioned in 1961. Niagara County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.1 of 5 at the 2nd national percentile. Riverine flooding is the leading peril, rated Relatively Moderate by FEMA at the 68th 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.
Niagara County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Relatively Moderate | 68th | 3.7 of 5 | 1.3 |
| Ice storm | Relatively High | 66th | 3.6 of 5 | 3.0 |
| Strong wind | Relatively Moderate | 40th | 2.6 of 5 | 0.97 |
| Hurricane | Very Low | 34th | 2.3 of 5 | 0.03 |
| Earthquake | Relatively Low | 32nd | 2.3 of 5 | <0.01 |
| Winter weather | Relatively Low | 20th | 1.8 of 5 | 18.9 |
| Tornado | Relatively Low | 14th | 1.5 of 5 | 0.07 |
| Hail | Relatively Low | 13th | 1.5 of 5 | 0.51 |
| Coastal flooding | Very Low | 10th | 1.4 of 5 | 0.01 |
| Lightning | Relatively Moderate | 6th | 1.3 of 5 | 27.6 |
| Heat wave | Relatively Low | 5th | 1.2 of 5 | 2.9 |
| Wildfire | Very Low | 0th | 1.0 of 5 | <0.01 |
Model hail, wind and flood exposure for Niagara 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.