|Waterway||West Branch Penobscot River|
|Current status||Active |
|Type of facility||Conventional Hydro|
|Mode of hydropower generation||Run-of-river|
|Type of permit||FERC License|
|FERC docket #||P-2666|
|FERC project name||Medway|
Ownership and operation
|Owner||Black Bear Hydro Partners LLC|
|Owner type||Private Non-utility|
|Year first online (conventional hydro)||1923|
|Transmission or distribution system owner||Emera Maine|
Power and generating capacity
|Number of units||5|
|Total capacity from hydraulic turbine-generator units within each plant||4.0 mW|
|Average annual net hydropower generation||27,941.5 mWH|
The Medway Hydroelectric Project is a run-of-river hydroelectric generating facility located on the West Branch of the Penobscot River in Medway, Maine with a gross nameplate generating capacity of 3.44 MW. The Medway Project commenced initial commercial operations in 1923.
The Medway Project generates renewable electricity while providing recreational opportunities (portage trail and boat launch), fish passage measures, consistent water levels that enhance habitats for waterfowl, etc., and substantial support of the local community through stable property tax payments, reliable voltage support of the electrical distribution system, etc.
The Medway Project consists of a 343-foot-long concrete gravity dam surmounted byflashboards, a 64-foot-long concrete gravity forebay wall, a 120-acre impoundment, a powerhouse containing five generating units with a total installed capacity of 3.44 MW, an approximate 144-foot-long underground transmission line, and appurtenant facilities.
Please see additional project information in this 2020 factsheet created by Kaitlyn Raffier, Sharon Klein, and Emma Fox as part of the Future of Dams collaborative research project between the University of Maine, University of New Hampshire, and others.