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California Gives Green Light to Space Solar Power

Energy beamed down from space is one step closer to reality£¬now that California has given the green light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatt (Õ×Íß)of power beamed down from solar-power satellites beginning in 2016£®But some major chal lenges will have to be overcomed if the technology is to be used widely£®

A start-up company called Solaren is designing the satellites£¬which it says will use radio waves to beam energy down to a receiving station on Earth£®