December 24, 2023 — Back in 2011, Dominion Energy sent Diane Leopold, then a senior vice president for generation, to Greater Gabbard wind farm, 14 miles off the English coast in the North Sea, to look at a new-to-the-U.S. way of making electricity: offshore wind farms.
She came back with news that they could work in Virginia — wind conditions were similar, turbines could be anchored in deep and choppy seas and, key for this engineering graduate of England’s Sussex University, there was a clear path from the 3-megwatt turbines she saw to the larger ones that would make wind an affordable way to generate electricity.
“The biggest issue at the time was what’s the cost going to be for the customers,” said Leopold, who is now Dominion’s chief operating officer. “The technology fully proved out … but the ability to go from 3-megawatt turbines to 6-megawatt turbines to 11 to now almost 15 helps the economies of scale really get that cost down for the customers,” she said as she recalled Dominion’s first steps toward what became a $9.8 billion plan for an offshore wind farm capable of powering up to 660,000 homes.