New industry readies for launch as researchers hone offshore wind turbines that float

FILE - The University of Maine's first prototype of an offshore wind turbine is seen in this Sept. 20, 2013 file photo, near Castine Maine. – As waves grew and gusts increased, a wind turbine bobbed gently, its blades spinning with a gentle woosh. The tempest reached a crescendo with little drama other than splashing water.

“These structures are massive,” said Anthony Viselli, chief engineer for offshore wind technology at the university’s Advanced Composites Center, after the demonstration wrapped up. “These would be some of the largest moving structures that humankind has endeavored to create. And there would be many of them.”

The first floating wind farm started operating off Scotland’s coast in 2017. In the United States, the Department of Interior two weeks ago proposed the first floating wind energy auctions for the Gulf of Maine, following. The nearly 1 million acres up for auction off the New England coast could generate enough clean wind energy to power more than 5 million local homes, the department said.

“This is a global problem and this is an ideal solution in order to deliver power to shore,” said Gazelle Wind Power CEO Jon Salazar. Trailblazers in offshore wind are benefiting from work done by the oil industry, which engineered floating oil and gas rigs, said Habib Dagher, director of the Advanced Composites Center.which looks something like a swimming pool with wave and wind generators that can mimic ocean conditions up to a 500-year storm, takes that work to the next level.

Full-size turbines generate peak power starting at about 20 mph . In powerful storms, they shut down automatically to avoid stressing the equipment or breaking. The mooring lines tethered to the ocean floor are made of rope nearly thick as a telephone pole and under heavy tension. That makes them safer for marine mammals.

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