A report from U.S. Department of Energy (DOE) and Lawrence Berkley National Laboratory discusses "strong growth" during 2011 in the U.S. wind energy industry. The report says that by the end of 2011, wind power capacity reached 47,000 megawatts and has since increased to 50,000 megawatts, which is enough to power 12 million homes each year.
DOE also reports that as technology for wind power improves, the costs decrease due to increasing efficiency and performance. Visit DOE's website for more information.