Vanadium Flow Battery Breakthrough: China's Newest 200-Megawatt Energy Storage Facility Reaches Peak Operations

China has achieved a major milestone in renewable energy infrastructure with the complete activation of its most advanced vanadium flow battery storage system. Operating at maximum capacity since the end of December, the facility represents a watershed moment for long-duration energy storage deployment across the nation.

Location and Technical Specifications

The facility, operated by Three Gorges Group, is situated in Jimusaer County within Changji Prefecture in Xinjiang. This all-vanadium flow battery installation boasts a generating capacity of 200,000 kilowatts paired with energy storage capabilities of 1 million kilowatt-hours—the highest capacity among operational vanadium battery systems in the country.

Operational Capabilities and Grid Integration

The engineering breakthrough lies in vanadium flow battery technology’s ability to capture excess renewable energy. During peak solar generation hours, when photovoltaic facilities produce maximum output, the system absorbs surplus electricity that the grid cannot immediately utilize. This stored energy is then redistributed during evening hours or when electricity consumption peaks, creating a balanced supply mechanism.

Environmental and Economic Impact

The partnership with the supporting photovoltaic power station is projected to enhance overall electricity utilization efficiency by exceeding 10% annually. More significantly, the storage solution enables additional clean energy generation reaching beyond 230 million kilowatt-hours per year that would otherwise be wasted or constrained.

This advancement demonstrates China’s accelerating capabilities in scaling large-capacity, extended-duration energy storage technologies—a critical requirement for integrating renewable energy at grid scale.