DALIAN, China/OSAKA -- China's Dalian Rongke Power is competing with Japan's Sumitomo Electric Industries in capturing demand for a unique type of storage battery that will be crucial to expanding the use of renewable energy.
A power project in the city of Dalian began operations recently using a redox flow battery storage system developed by Rongke. The system offers a capacity of 400 megawatt-hours to contain power produced by wind turbines and other sources. Investment in the project totaled 1.9 billion yuan ($281 million).
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