March 9, 2019
A large, building-size APS energy-storage battery installed in Buckeye on March 24, 2017. Arizona Public Service Co., Arizona's biggest electric utility plans to spend hundreds of millions of dollars to add large, building-size batteries to the power grid. (Arizona Public Service Co. via AP)
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PHOENIX — Arizona Public Service Co. plans to spend hundreds of millions of dollars to add large, building-size batteries to the power grid, aiming to use their capacity to store surplus power available early in the day when solar power plants are productive.
By Associated Press
March 9, 2019
