Shanghai Hybrid Energy Storage Test Base Achieves Full Grid Connection
In a significant milestone for China's advanced energy storage sector, the Shanghai New Energy Storage Test Base (Phase I) has successfully achieved full grid connection for its vanadium redox flow battery (VRFB) unit. The project highlights the growing emphasis on hybrid storage solutions to enhance grid flexibility and reliability.
Project Details and Technical Specifications
On September 30, 2026, the 20MW/80MWh VRFB unit, provided by Shanghai Electric Energy Storage Technology Co., Ltd., was successfully integrated into the grid. Invested and constructed by Huaneng East China Branch, this specific unit is designed for 4-hour long-duration energy storage. It operates in tandem with a semi-solid energy storage system, creating a complementary technological pairing.
This hybrid configuration is specifically engineered to validate the engineering value of combined energy storage systems in peak shaving and top-peak power supply scenarios. By leveraging the distinct discharge characteristics of both VRFB and semi-solid batteries, the project aims to optimize grid response and energy delivery.
Strategic Importance for Shanghai
The test base is strategically located on the site of the retired Shidongkou No. 1 Thermal Power Unit. With a total planned construction scale of 50MW/200MWh, the facility innovatively adopts the hybrid VRFB and semi-solid battery technology route.
As one of Shanghai's first independent energy storage power stations, the base serves as a crucial empirical platform for new energy storage technologies, facilitating multi-route testing and performance evaluation.
The facility will conduct side-by-side empirical testing of multiple storage technologies, alongside long-duration storage performance testing and standard research. This initiative is expected to provide valuable operational data that will inform future large-scale deployments of hybrid LDES systems across the region.
This article was assisted by AI analysis. Please refer to the original source for official information.