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Wind and solar may be competitive with coal without aid in a decade, Chu says

According to Bloomberg, U.S. Energy Secretary Steven Chu is calling for a national energy policy that will promote the use of clean-energy technologies.  This would include U.S. investment in advanced battery technologies, biofuels and efficient high-voltage transmission systems.  Secretary Chu went on to say they are expecting wind and solar power may be able to compete with fossil fuels, without aid from government subsidies, within the next decade, rather than the three decades the U.S. Department of Energy was projecting earlier.