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July 07,2025

China Completes World’s Largest Vanadium Battery Project

China has completed construction of the world’s largest vanadium redox flow battery (VRFB) energy storage project in Xinjiang. Backed by China Huaneng Group, the 200 MW/1 GWh VRFB system pairs with a 1 GW Solar farm, costing $520 million. It will generate 1.72 TWh annually, reduce over 1.6 million tonnes of CO₂, and provide five hours of continuous discharge.

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