While land-based wind turbines can generate 5 megawatts of power, offshore turbines now in the planning stages could generate as much as twice that amount.
The winds blowing 15 miles or even farther off the U.S. coast potentially could produce 900,000 megawatts of electricity, or roughly the same amount as all the nation’s existing coal, nuclear and gas-fired plants, dams, co-generation, terrestrial windmills and solar projects combined, according to U.S. Department of Energy estimates.
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