57th largest plant in Connecticut · 6121st nationally
Derby Hydro is a hydroelectric power plant in Connecticut with a nameplate capacity of 8.6 MW. It generates roughly 9.3k MWh per year — enough to power about 889 average U.S. homes.
Its capacity factor of 12% reflects intermittent or peaking operation.
| Plant Name | Derby Hydro |
|---|---|
| Operator | Mccallum Enterprises I Lp |
| City | Shelton |
| County | Fairfield County |
| State | Connecticut |
| ZIP | 06418 |
| Coordinates | 41.32431, -73.10211 |
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 | 4.0 MW | Operating | 1989 |
| GEN2 | Conventional Hydroelectric | Water | 4.0 MW | Operating | 1989 |
| GEN3 | Conventional Hydroelectric | Water | 0.3 MW | Standby | 1989 |
| GEN4 | Conventional Hydroelectric | Water | 0.3 MW | Standby | 1989 |
| 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.