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Spain: How to Use Solar Energy at Night

Super Eco News Feed found this 2/19/2009 on sciam.com

Scientific American: Near Granada, Spain, more than 28,000 metric tons of salt is now coursing through pipes at the Andasol 1 power plant. That salt will be used to solve a pressing if obvious problem for solar power: What do you do when the sun is not shining and at night? The answer: store ...