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Incorporating 20 percent wind energy into the nation's electricity supply would only cost 2 percent more and would offer many benefits, according to the report.

Wind Energy Could Provide 20 Percent of U.S. Electricity by 2030

Harnessing the wind that comes sweepin' down the plain could provide 20 percent of America's electricity by 2030, according to a first-of-its-kind report from the U.S. Department of Energy, spearheaded by NREL. The environmental and economic benefits of boosting wind energy's contribution would be enormous and the costs are modest, the report says.

"First of all it is doable, second of all it's desirable," NREL Director Dan Arvizu said. Full story