Vanadium Redox Flow Battery Storage Breaks 10GWh Installed Capacity
China's cumulative vanadium redox flow battery installed capacity surpasses 10GWh, with the Dalian 200MW/800MWh project as the world's largest single flow battery facility.
The China Chemical and Physical Power Industry Association reported on January 5 that China's cumulative vanadium redox flow battery storage installed capacity surpassed 10GWh by end of 2027, a 280% year-over-year increase. The Dalian Flow Battery Energy Storage Peak-Shaving Station demonstration project, at 200MW/800MWh, stands as the world's largest single flow battery storage facility.
Flow batteries' core advantages lie in ultra-long cycle life and safety. Compared to lithium batteries, flow batteries can achieve over 20,000 charge-discharge cycles (versus 3,000-5,000 for lithium) with no thermal runaway risk, making them particularly suitable for large-scale grid storage.
Dalian Rongke Power CEO Liu Yanhui stated that vanadium flow battery system costs have decreased from 2,500 yuan/kWh in 2025 to 1,200 yuan/kWh by end of 2027. "Cost reductions mainly came from improved stack power density and domestic membrane materials."
The National Energy Administration has designated flow batteries as a key new energy storage development direction, targeting 30GWh cumulative installation by end of the 14th Five-Year Plan period.
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