China's Largest-Capacity Compressed Air ESS Station Goes Grid-Connected

Published: Sep 30, 2025 09:13

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[China's Largest Capacity Compressed Air ESS Power Station Successfully Connected to Grid] On September 27, Huaneng Jintan Salt Cavern Compressed Air ESS Generation Phase II Project, currently China's largest capacity compressed air ESS power station located in Changzhou, Jiangsu Province, was successfully connected to the grid. This project is significant for ensuring regional energy security and promoting the green and low-carbon transition. As one of Jiangsu Province's major projects, it achieved 100% localisation of core equipment, with a total volume of 1.2 million m³. A single charge can store 2.8 million kWh of electricity, sufficient to meet the charging needs of 100,000 NEV units. Annually, it can save 270,000 mt of standard coal and reduce CO₂ emissions by 520,000 mt.

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