BOEM issues research lease for 144MW floating wind array to state of Maine

US coastal regulator after environmental assessment earlier this year had already offered area to Maine and now executes lease at site 32 miles from coast

Elizabeth Klein, director of Bureau of Ocean Energy Management (BOEM).
Elizabeth Klein, director of Bureau of Ocean Energy Management (BOEM).Photo: BOEM

US coastal regulator, the Bureau of Ocean Energy Management (BOEM), has issued a research license to the State of Maine for an area allowing up to 12 floating offshore wind turbines capable of generating up to 144MW of green power.

The research array will allow the state, fishermen, wildlife experts, the offshore wind industry, and others to conduct in-depth studies and evaluate floating offshore wind as a renewable energy source in the region, BOEM said.

Floating wind development at the 15,000-acre area 32 miles (51 km) off the Maine coast is meant to evaluate its compatibility with existing ocean uses and assess its potential effects on the environment, supply chains, and job creation.

“Floating wind opens up opportunities to produce renewable energy in deeper water farther offshore,” BOEM director Elizabeth Klein said.

“Signing the Gulf of Maine research lease demonstrates the commitment by both BOEM and the State of Maine to promote a clean energy future for the nation.”

BOEM in late May had already given its environmental OK to the research lease area now fully granted and offered it to the State of Maine, which subsequently had 30 days to accept the offer.
The state originally requested approximately 9,700 acres, but BOEM came back and offered the lease in a larger area to “allow for additional data collection to inform exact turbine siting within the lease area,” a representative for the Maine governor's energy office told Recharge.

The project is still required to be the same size as originally proposed and any unused area must be relinquished back to BOEM.

Public-private partnership

Mitsubishi-owned Diamond Offshore Wind (DOW) and technology partner the University of Maine (UMaine) are developing the site as the Maine Research Array (MeRA). The partners aim to install turbines as large as 15MW atop UMaine’s patented VolturnUS concrete hulls.

VolturnUS hulls are based on bridgebuilding technology that can be readily produced from local materials and labour, said Habib Dagher, executive director of the UMaine Composites Center, which has been the driving force behind the project.

Dagher has told Recharge that the array may be installed as soon as 2029, likely before floating wind takes off in the deep waters off California.
The project's “next milestone will be to work with the Maine Public Utilities Commission to finalise the power purchase agreement, completion of which will allow development” to move forward, DOW spokesperson Dave Wilby told Recharge.

Commercial development

BOEM later this year is also slated to hold an auction for much larger offshore wind areas in the Gulf of Maine, with the potential to generate some 15GW of green power.

Maine governor Janet Mills said: “This lease between the State and BOEM to support the nation's first research array devoted to floating offshore wind technology is the result of extensive engagement with stakeholders and communities across our state to establish Maine as a leader in responsible offshore wind, in balance with our state's marine economy and environment.”

The administration of US President Joe Biden so far has approved the US’s first nine commercial-scale offshore wind projects with a combined capacity of more than 13GW.

Information from the research lease site regarding environmental and engineering aspects of the proposed project is slated to be used to inform future planning, permitting, and construction of commercial-scale floating offshore wind projects in the region.

Construction, however, isn’t likely to be carried out for several years, BOEM said.

MeRA would be the first project to utilise an offshore wind port facility in the state, identified by the Mills’ administration at Searsport, about 110 miles northeast of commercial centre Portland.

No final decision has been made on Searsport, though, and other sites are being looked at as well.

(Copyright)
Published 20 August 2024, 09:23Updated 20 August 2024, 23:09
AmericasUSMaineGulf of MaineOffshore wind