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Reinventing the flywheel

Giant electricity storage and generation units might help power grids run more smoothly

By Hiawatha Bray
Globe Staff / September 15, 2008

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Even electric utilities can use a little extra power now and then. Usually, they get it by burning more coal, oil, or gas. Beacon Power Corp. says it has a better idea: massive rotating flywheels that store power like giant alkaline batteries spinning at twice the speed of sound. (Full article: 1017 words)

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