DescriptionDeveloped using flow battery technology from the Dalian Institute of Chemical Physics (Chinese Academy of Sciences) and built by Rongke Power, the facility stores energy in liquid vanadium electrolyte tanks rather than solid electrodes, a chemistry that trades lower energy density for a very long cycle life (typically over 20,000 cycles) and negligible degradation compared to lithium-ion batteries — an advantage for the kind of daily grid peak-shaving and renewable-smoothing role this plant performs.
Formal questionThe Dalian Flow Battery Energy Storage Peak-shaving Power Station in Liaoning Province, China, connected its first 100 MW / 400 MWh phase to the grid in September 2022, becoming the world's largest vanadium redox flow battery energy storage facility, with a planned second phase to expand total capacity to 200 MW / 800 MWh.
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