Lawrence Hydroelectric Associates
Hydro power plant · Essex County, Massachusetts
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Central Rivers Power US, LLC
- County
- Essex County
- Generating units
- 2
- Share of state capacity
- 0.11%
- Rank among hydro plants in Massachusetts
- #8 of 32
- EIA plant code
- 50545
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 7.4 MW | 7.0 MW | 1981 | Operating |
| GEN2 | Conventional Hydroelectric | 7.4 MW | 7.0 MW | 1981 | 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
| Deerfield 5 | Hydro | 18 MW |
| Univ of Massachusetts Medical Center | Natural gas | 18 MW |
| SJA Solar LLC-Solterra Monastery CSG | Solar | 15 MW |
| Gillette SBMC | Natural gas | 14 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 15 MW solar plant and a 15 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