Nameplate capacity
37 MW
Rank in Connecticut
#25
of 184 plants
In service since
1955
January 1955
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- FirstLight Power Resources Services LLC
- County
- New Haven County
- Generating units
- 1
- Share of state capacity
- 0.34%
- Rank among hydro plants in Connecticut
- #1 of 14
- EIA plant code
- 552
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 37 MW | 42 MW | 1955 | 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
| Plainfield Renewable Energy LLC | Other | 43 MW |
| Pfizer Groton Plant | Natural gas | 38 MW |
| DWW Solar ll | Solar | 37 MW |
| Kimberly Clark-Unit 1,2,3 | Natural gas | 36 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 37 MW solar plant and a 37 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