The 100 MW Dalian Flow Battery Energy Storage Peak-shaving Power Station has the largest power and capacity in the world at the moment. It was connected to the grid in Dalian, China, on September 29, and it will be put into operation in mid-October.
The project is supported by Prof. LI Xianfeng’s group from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences. The system was built and integrated by Rongke Power Co. Ltd.
The Dalian Flow Battery Energy Storage Peak-shaving Power Station was approved by the Chinese National Energy Administration in April 2016. It is slated to produce 200 megawatts (MW)/800 megawatt-hours (MWh) of electricity.
The first phase of the on-grid power station project is 100 MW/400 MWh. The power station can meet the daily electricity demand of 200,000 residents. This will cut down the pressure on the power supply during peak hours and improve power supply reliability in the southern region of Dalian.
The Dalian Flow Battery Energy Storage Peak-shaving Power Station is based on vanadium flow battery energy storage technology developed by DICP, will serve as the city’s “power bank” and play the role of “peak cutting and valley filling” across the power system.
This technology is highly reliable in large-scale energy storage applications due to its commendable safety, good dependability, large output power and storage capacity, long life, good cost performance, use of recyclable electrolytes, and environmental friendliness.
Additionally, this technology can work with conventional thermal power, nuclear power, and other power sources, providing peak regulation and frequency regulation for the power system as well as improving its flexibility.
The Dalian Flow Battery Energy Storage Peak-shaving Power Station will improve the renewable energy grid connection ratio, balance the stability of the power grid, and improve the reliability of the power grid.