Nameplate capacity
3.9 MW
Rank in Maine
#185
of 274 plants
In service since
2013
November 2013
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Brookfield Black Bear Hydro, LLC
- County
- Penobscot County
- Generating units
- 3
- Share of state capacity
- 0.06%
- Rank among hydro plants in Maine
- #30 of 48
- EIA plant code
- 59438
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| ORB-1 | Conventional Hydroelectric | 1.3 MW | 1.3 MW | 2013 | Operating |
| ORB-2 | Conventional Hydroelectric | 1.3 MW | 1.3 MW | 2013 | Operating |
| ORB-3 | Conventional Hydroelectric | 1.3 MW | 1.3 MW | 2013 | 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
| Washington WS01 | Solar | 4.0 MW |
| Knights Pond Solar, LLC | Solar | 3.9 MW |
| RE Gardiner Solar, LLC | Solar | 3.9 MW |
| Augusta Road Bowdoin Solar, LLC | Solar | 3.8 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 3.9 MW solar plant and a 3.9 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