The automated controllers for the 253-foot blades on Dominion Energy Virginia’s two wind turbines, 27 miles off the Virginia Beach shore, had aimed them just a few degrees west of due north, so a 12-knot wind could turn them at a stately ten revolutions a minute.
What Dominion has found so far is that wind turbines are producing more power than expected, said Kevin Carroll, operations and maintenance director for the company’s offshore wind project.