BBC: Turning air into liquid may offer a solution to one of the great challenges in engineering - how to store energy. The Institution of Mechanical Engineers says liquid air can compete with batteries and hydrogen to store excess energy generated from renewables. IMechE says "wrong-time" electricity generated by wind farms at night can be used to chill air to a cryogenic state at a distant location. When demand increases, the air can be warmed to drive a turbine. Engineers say the process...
URL: http://www.bbc.co.uk/news/science-environment-19785689#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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