46th largest plant in Massachusetts · 4986th nationally
Deerfield 5 is a hydroelectric power plant in Massachusetts with a nameplate capacity of 17.5 MW. It generates roughly 63.1k MWh per year — enough to power about 6,012 average U.S. homes.
Its capacity factor of 41% puts it in the middle range — running steadily but not full-time.
| Plant Name | Deerfield 5 |
|---|---|
| Operator | Great River Hydro, Llc |
| City | Florida |
| County | Berkshire County |
| State | Massachusetts |
| ZIP | 01247 |
| Coordinates | 42.69118, -72.95610 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | Water | 17.5 MW | Operating | 1974 |
| NERC Region | NPCC |
|---|---|
| Balancing Authority | Iso New England Inc. |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.