Putts Bridge
Hydro power plant · Hampden County, Massachusetts
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Central Rivers Power MA, LLC
- County
- Hampden County
- Generating units
- 2
- Share of state capacity
- 0.02%
- Rank among hydro plants in Massachusetts
- #21 of 32
- EIA plant code
- 1637
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| PB2 | Conventional Hydroelectric | 1.6 MW | 1.6 MW | 2018 | Operating |
| PB3 | Conventional Hydroelectric | 1.6 MW | 1.6 MW | 2018 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Massachusetts
| Hampden | Solar | 3.2 MW |
| Oak Leaf Solar XVII Community Solar | Solar | 3.2 MW |
| 580 River Solar | Solar | 3.1 MW |
| Boatlock | Hydro | 3.1 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 3.2 MW solar plant and a 3.2 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Massachusetts power plants · What Massachusetts actually generates