| http://www.w3.org/ns/prov#value | - WASHINGTON - The U.S. electric grid is outdated and needs a major overhaul if it is to carry electricity generated by renewable energy sources, a senior official with Southern California Edison told Congress on Thursday.The Obama administration has called for doubling the amount of U.S. electricity produced by renewable sources, such as wind and solar power, during the next three years to reduce g
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