China’s largest vanadium flow battery energy storage station—the Xinjiang Jimsar Vanadium Flow Battery Energy Storage Power Station, operated by China Three Gorges Corporation—has officially entered full-scale operation. This milestone marks a significant leap forward in China’s deployment of large-scale, long-duration energy storage technologies.

The station boasts a rated power output of 200,000 kilowatts and a storage capacity of 1 million kilowatt-hours. It is designed to absorb excess electricity during daylight hours and discharge it during nighttime or peak demand periods. This capability is projected to boost the annual utilization rate of the connected photovoltaic power station by over 10%, while generating an additional 230 million kilowatt-hours of clean energy annually.

Vanadium flow batteries operate by storing and releasing energy through reversible chemical reactions of vanadium ions, offering exceptional cycle longevity. To ensure reliable performance in extreme climates, China Three Gorges Corporation has implemented an innovative design, housing all equipment indoors within color-coated steel structures. This approach enhances durability and operational stability under harsh weather conditions.

China is endowed with abundant vanadium resources. By leveraging domestically developed technology, this project not only advances the local industrial chain but also sets a benchmark for the global promotion of long-duration energy storage solutions.