Rongke Power has brought the Jimusaer Vanadium Flow Battery Energy Storage Project into full operation, marking the first time a vanadium flow battery installation has reached gigawatt‑hour scale.
The system delivers 200MW/1,000MWh of installed capacity, enabling up to five hours of continuous discharge. Built for intensive daily cycling, it is engineered to support long‑duration storage for utility‑scale grid operation and to strengthen the integration of renewable energy.
The project operates alongside a 1GW photovoltaic plant, storing surplus solar generation during periods of high output and releasing it during peak demand. According to project data, the combined system increases renewable utilisation by more than 230 million kWh each year, reducing curtailment and improving overall system efficiency.
As the first vanadium flow battery project to function at the gigawatt‑hour level, Jimusaer demonstrates the capability of vanadium flow battery technology to operate reliably at unprecedented scale. With high intrinsic safety, long service life and stable performance under frequent cycling, vanadium flow batteries continue to show strong suitability for large‑scale, long‑duration energy storage.
By enabling greater use of renewable energy, the integrated PV‑plus‑storage system contributes to wider carbon‑reduction efforts and supports the transition toward more flexible and resilient power systems. Rongke Power says that it will continue advancing vanadium flow battery technologies and integrated storage solutions to support global deployment.
