【Ten Years of Rapid Development in Chemical Engineering Equipment】China’s first \"flywheel energy storage + million-kilowatt unit combined frequency regulation\" project came online between 2013 and 2023

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On June 30, China’s first project combining flywheel energy storage with million-kilowatt-class intermediate secondary reheated thermal power units for joint frequency regulation was officially put into operation at Huaneng Laiwu Power Plant, filling the gap in the application of this technology in China. This project utilizes 10 individual 600-kilowatt flywheel energy storage units, which operate in conjunction with the 1-million-kilowatt unit at Laiwu Power Plant to participate in the primary frequency regulation of the power grid. Taking advantage of their fast response time and ability to deliver high power for short periods, these flywheel energy storage systems compensate for the limitations in the primary frequency regulation capabilities of the 1-million-kilowatt unit. They can effectively meet the power grid’s needs for frequent frequency regulation, thereby reducing equipment wear and energy consumption; it is estimated that they can help reduce carbon emissions by over 60,000 tons per year. The project is the first flywheel energy storage power station installed indoors in China. The flywheel units are placed in shafts within the factory building, and these shafts are constructed using underground reinforced concrete structures, which significantly enhances their safety performance.