RWE-backed US floating wind pilot cleared for takeoff with 'no competing interest' in Maine

Finding by BOEM allows state to proceed with Aqua Ventus research project aimed at gauging ecological impacts and avoiding stakeholder opposition

The US regulator of coastal energy development found no competing interest for a research lease application submitted by the state of Maine, clearing the way for a 150MW research array that may be the nation’s first floating wind project.

The Bureau of Ocean Energy Management (BOEM) said Thursday it will now move forward with the state’s research application, “which could be used to inform any future commercial offshore wind development in the Gulf of Maine, as well as the deployment of floating offshore wind technology nationwide”.

BOEM’s finding will enable the US to “have its first floating array” by 2029, Habib Dagher, executive director of the University of Maine (UMaine)’s Advanced Structures & Composites Center, told Recharge.
Maine applied for the 9,637-acre (39km2) area off the coast of Portland in October 2021 for the New England Aqua Ventus (NEAV) project under development by the state, the university, and commercial partners RWE and Mitsubishi-owned Diamond Offshore.

The regulator concluded the lack of competitive interest in the research area was “due to concerns about commercial scale viability”.

'Judicious approach'

In contrast to its New England neighbours Massachusetts, Connecticut, and Rhode Island, which are rapidly pushing largescale commercial development that has stirred opposition by environmentalists and fisheries alike, Maine is opting for a pilot programme to gauge local impacts and stakeholder response.

“The research array is the cornerstone of Maine’s judicious approach to floating offshore wind,” said Dan Burgess, director of Maine governor Janet Mill’s Energy Office.

The state “emphasises cooperation and collaboration with Maine’s fishing industry and environmental community to conduct important research and testing of this new technology and evaluate its potential impacts on existing uses,” said Burgess.

NEAV will deploy VolturnUS concrete floating platforms developed by UMaine that are based on bridgebuilding technology and can be readily produced from local materials.

A 1/8 scale model of the VolturnUS technology was deployed for 18 months starting in 2013 and was the US’ first and so far, only grid connected floating wind turbine. Full scale models are being manufactured with the help of grants issued by the Department of Energy (DoE).

“Going from the single turbine to 10 turbines, as a researcher array is a very responsible way to move forward and really understand potential repercussions,” UMaine’s Dagher said.

Chris Wissemann of Mitsubishi-owned Diamond Offshore Wind said the state’s approach to “comprehensive research and analysis of floating offshore wind prior to commercial scale development in the Gulf of Maine"” was “prudent” amid mounting opposition.

The nations’ flagship project, the 800MW Vineyard Wind 1 off Massachusetts, is the subject of four separate lawsuits alleging gaps in its environmental review process.
Further south, recent whale strandings allegedly linked to offshore wind acoustic surveys have ignited a fury of opposition in New York and New Jersey, with activists calling for a moratorium on all commercial development.

Dagher said Maine’s approach is “not only more responsible environmentally and ecologically and from a fishing perspective, but also allows us to scale up the technology and the workforce in a responsible manner as well,” Dagher said.

Gulf of Maine interest

Last year BOEM issued requests for commercial interest for both the research lease sought by NEAV as well as the 13.7 million-acre (55,441km2) sweep of the entire Gulf of Maine.

The Gulf of Maine could hold 82GW of offshore wind energy, according to the National Renewable Energy Laboratory, most of it in water as deep as 700 metres, requiring floating platforms.

Five companies, including Hexicon, Avangrid, Mainstream Renewable Power, and TotalEnergies, submitted expressions of commercial interest, with BOEM anticipating an auction in the area by 2025.

NEAV is gathering necessary environmental data for BOEM to make a final decision on the area, with expectations of the issuance of a lease within a month.

Dagher said the consortium anticipates installation of the array to begin as early as 2027, with commercial operations before 2030.

The administration of President Joe Biden is targeting 15GW of floating wind in US waters by 2035 through its Floating Wind Shot. BOEM held the nation’s first floating wind auction off the coast of California in December.
(Copyright)
Published 21 January 2023, 18:23Updated 8 October 2023, 11:35
AmericasUSMaineGulf of MaineHexicon