PEPPERELL HYDRO POWER PLANT
OperatingHydro power plant
- Capacity
- 2 MW
- Primary fuel
- Hydro
- County
- Middlesex County
- Operator
- SWIFT RIVER HYDRO OPERATIONS CO., INC
- Status
- Operating
- Commissioned
- 1920
- EIA plant ID
- 10694
- Coordinates
- 42.1633, -72.8275
PEPPERELL HYDRO POWER PLANT, a 2 MW Hydro power plant in Middlesex County, Massachusetts. One of 160 power plants tracked in Massachusetts on Bywatts.
Weather peril exposure
PEPPERELL HYDRO POWER PLANT is a 2 MW hydro power plant in Middlesex County, MA, operated by SWIFT RIVER HYDRO OPERATIONS CO., INC, commissioned in 1920. Middlesex County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.2 of 5 at the 6th national percentile. Ice storm is the leading peril, rated Very High by FEMA at the 76th 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.
Middlesex County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Ice storm | Very High | 76th | 4.0 of 5 | 2.7 |
| Hurricane | Relatively High | 76th | 4.0 of 5 | 0.16 |
| Earthquake | Relatively Moderate | 71st | 3.8 of 5 | <0.01 |
| Coastal flooding | Relatively Low | 34th | 2.4 of 5 | 6.2 |
| Wildfire | Relatively Low | 34th | 2.4 of 5 | <0.01 |
| Riverine flooding | Relatively High | 27th | 2.1 of 5 | 4.3 |
| Lightning | Relatively High | 22nd | 1.9 of 5 | 21.6 |
| Tornado | Relatively Moderate | 22nd | 1.9 of 5 | 0.18 |
| Strong wind | Relatively High | 8th | 1.3 of 5 | 0.97 |
| Heat wave | Relatively Moderate | 7th | 1.3 of 5 | 5.7 |
| Winter weather | Relatively Moderate | 6th | 1.2 of 5 | 17.2 |
| Hail | Very Low | 4th | 1.2 of 5 | 2.3 |
Model hail, wind and flood exposure for Middlesex 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.