Texas Battery Is Biggest In U.S.: State Pursuing Energy Storage Technology

01/06/2011 05:12 am ET | Updated May 25, 2011

This $25 million contraption is the largest battery system in the United States -- locals have dubbed it Bob, for Big Ole Battery. It began operating earlier this year, and is the latest mark of [Texas's] interest in a nascent but rapidly evolving industry: the storage of electricity.

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