Quinebaug Lower Project
Hydro power plant · Windham County, Connecticut
Nameplate capacity
2.5 MW
Rank in Connecticut
#110
of 184 plants
In service since
1990
April 1990
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Quinebaug Associates LLC
- County
- Windham County
- Generating units
- 4
- Share of state capacity
- 0.02%
- Rank among hydro plants in Connecticut
- #10 of 14
- EIA plant code
- 55860
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| UI | Conventional Hydroelectric | 1.3 MW | 1.2 MW | 1990 | Operating |
| U2 | Conventional Hydroelectric | 0.8 MW | 0.8 MW | 1990 | Operating |
| 5-M | Conventional Hydroelectric | 0.3 MW | 0.3 MW | 1990 | Operating |
| MF | Conventional Hydroelectric | 0.1 MW | 0.1 MW | 1990 | 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 Connecticut
| Becton Dickinson Ground & Roof Top | Solar | 2.5 MW |
| CMEEC - Bozrah | Solar | 2.5 MW |
| Wesleyan University Cogen 1 | Natural gas | 2.4 MW |
| Kinneytown New Old | Hydro | 2.3 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 2.5 MW solar plant and a 2.5 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 Connecticut power plants · What Connecticut actually generates