Messalonskee 2 (Oakland)
Hydro power plant · Kennebec County, Maine
Nameplate capacity
2.8 MW
Rank in Maine
#218
of 274 plants
In service since
2024
January 2024
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Messalonskee Stream Hydro LLC
- County
- Kennebec County
- Generating units
- 1
- Share of state capacity
- 0.05%
- Rank among hydro plants in Maine
- #33 of 48
- EIA plant code
- 1497
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 2.8 MW | 2.8 MW | 2024 | 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 Maine
| Limestone CSG 2 LLC | Solar | 2.9 MW |
| ME Fort Fairfield Solar Plant | Solar | 2.8 MW |
| Orono Hydro Station | Hydro | 2.7 MW |
| Mars Hill | Solar | 2.6 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 2.8 MW solar plant and a 2.8 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 Maine power plants · What Maine actually generates