Harbin Electric Group has brought into operation the adiabatic compressed-air energy storage (CAES) facility — the Guoxin Suyan Huai’an Salt Cavern Compressed Air Energy Storage Demonstration Project — in Jiangsu Province, China, deploying two 300 MW non-combustion CAES units with a combined 2.4 GWh capacity to store and release grid electricity using advanced molten salt and pressurized thermal water systems.
The 2.4 GWh adiabatic compressed air energy storage project stores electricity without burning fuel. Energy is stored through air compression and the heat generated during the process. The project employs advanced molten salt and pressurized thermal water storage for heat management, achieving 71% conversion efficiency according to equipment supplier Harbin Electric Corp.
Country updates
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September 24, 2025
China Building 1.8 GW Offshore PV Project in Bohai Sea
China is advancing its marine solar development with a 1.8 GW offshore PV demonstration project in Changli county, Qinhuangdao, Hebei province. The project, with a total investment of CNY 14.4 billio...
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January 20, 2025
China’s CGN New Energy announces winning bidders in 10 GWh BESS tender
China’s independent power producer CGN New Energy has announced the results of its 2025 procurement for lithium iron phosphate (LFP) battery energy storage systems, which will be installed along...
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January 09, 2025
Operations started of 3.6 GW Fengning Pumped Storage Power Station in China
State Grid Xinyuan Group Co., Ltd., a subsidiary of the State Grid Corporation of China has started operations of 3.6 GW Fengning Pumped Storage Power Station located in Fengning County, Heb...
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December 20, 2024
Second Phase Commissioned for 100 MW Solar project in Tibet
China Huadian Corp., a state-owned power generator, has commissioned the second phase of its Caipeng Solar-Storage Power Station adding 100 MW of solar capacity and 20 MW/80 MWh of battery storage in...
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December 11, 2024
Vanadium redox flow project completed in China
Rongke Power has announced the completion of the 175 MW/700 MWh Xinhua Ushi Energy Storage Project in the Xinjiang region, northwest China. The system supports grid stability, peak load management, a...
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