The high-power maglev flywheel + battery storage AGC frequency regulation project, led by a thermal plant of China Huadian Corporation in Shuozhou, officially began construction on March 22. And it will be China's first flywheel + battery storage project used in frequency regulation when finished. The project has a budget of 33.72 million yuan, using a 5MW/5MWh BESS and a 2MW/0.4MWh flywheel storage system. It is expected to complete the research and development process of the flywheel and battery control system and ready to operate in August, and will be online by the end of 2022. It will be the first application of the hybrid storage system in the power grid frequency regulation scenario in China.
Lithium-ion Battery + Flywheel Hybrid Storage System Was Firstly Used in Frequency Regulation in Grid of China