Integrating pumped hydro with compressed air energy storage

A group of Chinese researchers has made a first attempt to integrate pumped hydro with compressed air storage and has found the latter may help the former to better deal with large head variations. Researchers from China's Harbin Institute of Technology proposed to combine pumped hydro storage systems with compressed air energy storage (CAES) technology in an attempt to address a well-known issue of pumped hydro schemes - dealing with large head variations in hydraulic machinery. "We have designed a novel pumped hydro compressed air energy storage system integrating pumped hydro storage, compressed ...

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