The makers of wind turbines have, for many decades now, labored to harness one of the mightiest forces in nature. They’ve moved from onshore to offshore sites, building ever larger rotors with huge blades, each one now longer than a row of 10 London buses. And they’ve stacked those rotors atop dizzying towers, constantly reaching for new, blustery heights.
In their endless quest to capture the most reliably energetic winds, engineers are now moving further out into the ocean, to areas of deeper water where especially strong winds are known to blow. For offshore wind turbines—whose fixed-bottom foundations can only extend down
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