Giant cousins of your laptop batteries are going to provide storage to the electricity grid.
Altairnano (
http://www.altairnano.com/index.html) on Tuesday said that Indianapolis Power & Light, a division of utility AES, completed tests for using two megawatts worth of its batteries to maintain grid frequency.
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*Source: Green Tech Blog (
http://news.cnet.com/8301-11128_3-99...tag=nefd.top)*
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