Global investment in renewable energy, chiefly wind and solar power, rose by a sixth in 2014, to $270 billion. The cost of battery storage, a vital part of a solar-powered future, has fallen by 60% since 2005, and the overall cost of a solar-power system is down by 75% since 2000. Today’s #Dailychart shows plummeting prices are boosting renewables, even as subsidies fall http://econ.st/1Hb2XnD
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