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The cost of deploying solar power systems has dropped by 18 percent in 2010 and by 11 percent during the first six months of 2011, the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) reports.
Cost of Solar Systems in the U.S. Drops 29% Since 2009 : Read more
Cost of Solar Systems in the U.S. Drops 29% Since 2009 : Read more