Hanover Pond Hydro

First commercial Archimedes Screw Turbine installation in the U.S. LIHI certified.

Hanover Pond, Quinnipiac River, Meriden, Connecticut

Type of waterway



920,000 kW hrs.
PPA City of Meriden
Public & Private Funding
U.S. LIHI certified

Start Date

March 2017

Low Impact Hydropower Institute Certification

Hanover Pond—First Archimedes Screw Turbine (AST) in U.S.

Nameplate capacity 192 kW designed to produce just under 1 MW of electricity annually. Constructed adjacent to earthen portion of dam and existing fishway. As the first system of its type in the U.S., the site has been a study platform for fish and eel migration. In concert with the State of Connecticut Department of Energy and Environmental Protection and the U.S. Fish and Wildlife Service, NEHC’s ongoing field studies reveal complete survivability of migratory species of concern in New England; American shad, River herring, Sea lampreys, and American eels. The Hanover Pond project was certified by the Low Impact Hydro Institute in 2019.


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