1. Sumitomo Electric Starts Demonstration of Storage Battery System for Power Grid in California

    Sumitomo Electric Starts Demonstration of Storage Battery System for Power Grid in California

    Sumitomo Electric Industries, Ltd. and New Energy and Industrial Technology Development Organization (NEDO), in cooperation with the State of California and public utility company San Diego Gas & Electric (SDG&E), started the demonstration of the United States’ largest redox flow battery system in California, and a commencement ceremony was held at the project site on March 16, 2017. Following the start of the project in September 2015, a redox flow battery system (2 MW x 4 hours) was constructed for a power grid at a substation in San Diego. Demonstration will now be carried out to evaluate the management of surplus electricity and regulation of grid frequency and voltage fluctuation. Data on performance in the transmission and distribution grid will also be collected to improve the system’s economic value.

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