Aqua Ventus I and Central Maine Power Company have officially signed a
20-year Power Purchase Agreement (PPA) for the 12 MW Maine
floating offshore wind farm located off Monhegan Island. According to the
U.S. Department of Energy (DOE), the contract was signed on 9 December
The state’s Public Utilities Commission approved the PPA in November,
2019. This allows the demonstration project to sell its electricity to
the Central Maine Power utility, making it the first DOE-funded offshore
wind demonstration project to achieve this milestone.
The University of Maine’s Aqua Ventus I project has been in the planning
phase since 2012, and securing a power offtake agreement will help the
project attract financial investors and continue further development activities.
The floating offshore wind pilot project aims to demonstrate the viability
of floating offshore wind by deploying two turbines on floating concrete
semi-submersible foundation designed by UMaine. The foundations will be
held in position by three marine mooring lines securely anchored to the
seabed, with the electrical generation connected by subsea cable to the
Maine power grid on shore.
It is backed by Cianbro Corporation, Naval Group and the University of
Maine and UMiane's Advanced Structures and Composite Centre.
The project has
secured approximately $39.9 million (€36 m or £31 m ) in funding from
the US government. Offshore construction could take place in 2021 provided
the project reaches financial close.
The University of Maine successfully deployed and tested a 1:8-scale prototype
of their floating VolturnUS foundation in June 2013. The design was tested
for almost 19 months between and was the first floating wind turbine connected
to the US grid.
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