Maine Offshore Wind: Setback & Future Plans
- A University of Maine offshore wind turbine project, VolturnUS+, hit a snag when the U.S.Department of Energy's Advanced Research Projects Agency-Energy (ARPA-E) suspended its $12.6 million grant.
- The VolturnUS+ is a 1:4 scale model of a 15-megawatt turbine.
- The VolturnUS+ is among several offshore wind projects facing delays in the United States.
Maine’s offshore wind ambitions face stormy seas as the University of Maine’s VolturnUS+ project stalled, jeopardizing vital funding crucial for advancing maine’s energy transition. The U.S. Department of Energy suspended a $12.6 million grant, putting the innovative floating wind turbine prototype on hold. This setback, coupled with broader industry challenges, raises serious questions about the future of offshore wind growth and the economic impact on coastal communities. Numerous offshore wind projects, including Mitsubishi Corporation’s planned array, face delays, highlighting the hurdles in scaling up clean energy. The VolturnUS+ prototype, now moored, requires critical analysis to assess stability, but future progress looks dubious. These disruptions could considerably impact floating wind projects. news Directory 3 keeps you informed on breaking developments. Discover what’s next for the project, and the state’s commitment to the sector.
Maine Offshore Wind Project Faces Funding Hurdles
Updated May 30, 2025
A University of Maine offshore wind turbine project, VolturnUS+, hit a snag when the U.S.Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) suspended its $12.6 million grant. The prototype arrived in Searsport, Maine, on April 11, ready for tower and turbine installation.
The VolturnUS+ is a 1:4 scale model of a 15-megawatt turbine. Its deployment would have marked the second floating wind turbine in U.S. waters. The funding suspension left the 375-tonne concrete hull dockside, prompting university officials too scramble for solutions.
The VolturnUS+ is among several offshore wind projects facing delays in the United States. Citing the “political habitat,” wind giant RWE paused work on its 6-gigawatt U.S. portfolio. These disruptions coudl considerably impact floating wind projects, designed for deeper waters farther offshore.
Mitsubishi Corporation paused its 12-turbine, 144-MW floating research array planned off the coast of Portland, Maine, citing “uncertainty in the offshore wind industry.” Maine policymakers hoped this array would boost the state’s energy transition and coastal economies.
Steve Clemmer, director of energy research at the Union of Concerned Scientists, emphasized the importance of these testbeds for demonstrating technology and researching impacts on fishing and wildlife.
Facing the funding block, Habib Dagher, executive director of the University of Maine’s Advanced Structures & Composites Center, said his team cobbled together funds from industry partners and the state to tow the turbine to its test site off Castine, Maine. Leaving the platform at the pier was not an option.
It was the only viable option, says Dagher. “We had no choice but to find emergency funds to get it out of there.”
California is moving forward with offshore wind development. Gov. Gavin Newsom proposed a $228 million investment to prepare ports for construction. The state also awarded $20 million to the Port of Long Beach and $18 million to the Port of Humboldt for public engagement and permit studies.
Matt Simmons, climate attorney for the Environmental Protection Information Center, noted California is sticking to its offshore wind plans. However, federal cooperation remains crucial, especially for projects like Cademo, which hopes to sell power to Vandenberg Space Force Base.
what’s next
The VolturnUS+ test rig is now moored. The next step involves installing a power cable to connect the turbine to the grid, with operation planned for 18 months to assess stability. The university stated that without the ARPA-E funds, analyzing results and crafting a commercialization plan will be more challenging. the University of Maine announced layoffs at the Advanced Structures & Composites Center due to federal funding concerns.