By ESS news
China’s State Power Investment Corp (SPIC) says it has put into operation the world’s first ultra-high temperature heat pump energy storage system, called ‘Chuno’, after completing a megawatt-scale pilot and third-party performance testing.
SPIC’s Central Research Institute (also called SPIC Science and Technology Research Institute Co., Ltd.) launched the technology in Beijing on December 25, describing it as a “Carnot battery” concept that couples a heat pump cycle with a heat engine cycle to convert electricity into stored heat and cold, and then back into electricity on demand.
According to SPIC, the pilot system has a capacity of 1 MW/4 MWh and has completed seven full charge-discharge cycles under third-party testing by the Xi’an Thermal Power Research Institute (Xi’an TPRI). The company said the system met or exceeded design goals and remained stable during the testing campaign.
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