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AboutThe Yuanhe Energy team has been deeply engaged in the fields of energy storage systems, power electronics, and automatic control for many years, boasting over a decade of experience in the energy storage industry. By collaborating with industry partners, they have developed safer, smarter, and more efficient energy storage integration products. The company’s energy storage system integration products and solutions can meet the needs of various application scenarios, including combined frequency modulation for thermal power plants, energy storage supporting new energy generation, user‑side energy storage, and independent shared energy storage power stations. -
SolutionsEnergy storage is a flexible solution for mitigating grid fluctuations caused by renewable energy generation. When deployed at an appropriate scale, energy storage can effectively reduce curtailment rates of wind and solar power, enhancing the grid’s ability to absorb these sources; it can also participate in ancillary services such as peak shaving and frequency regulation, thereby generating additional revenue. -
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The flywheel energy storage plus million-kilowatt unit joint frequency modulation project has officially been put into operation at Huadian Laiwu Power Plant.
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2023/07/07
On June 30, China’s first “flywheel energy storage + million-kilowatt-class intermediate secondary reheat thermal power unit combined frequency modulation” project was officially put into operation at the Huaneng Laiwu Power Plant.
On June 30, China’s first “flywheel energy storage + million-kilowatt-class intermediate secondary reheat thermal power unit joint frequency modulation” project was officially put into operation at Huadian Laiwu Power Plant, filling the gap in the application of “flywheel energy storage + million‑unit joint frequency modulation” technology in China.
The project utilizes 10 standalone flywheel energy storage units, each with a capacity of 600 kW, which operate in conjunction with the million‑kilowatt unit at Laiwu Power Plant to jointly participate in primary frequency regulation of the power grid. Leveraging their advantages—such as rapid response and high short‑term power output—flywheel energy storage helps compensate for the insufficient primary frequency regulation capability of the million‑kilowatt unit, effectively meeting the grid’s high‑frequency demand for frequency regulation while reducing equipment wear and tear and energy consumption. It is estimated that this approach can cut carbon emissions by more than 60,000 tons annually.
This project is the first indoor flywheel energy storage power station in China. The flywheel units are installed in a shaft within the factory building, and the flywheel shaft adopts an underground reinforced concrete box structure, significantly enhancing its safety performance.
This flywheel energy storage system was developed by Beijing Qifeng June Energy, and Yuanhe Energy provided the grid‑connected converter for this project, which is equipped with the eMetaEMS software platform. Once the system is fully operational, it is expected to enhance the frequency stability of Shandong Province’s power grid.
“This is a significant milestone for China’s flywheel energy storage,” said Jiang Tao, CEO of Qifeng Jueneng. “This system fills the gap in joint frequency regulation between flywheels and million-kilowatt units.”
“We are delighted to see this system put into operation,” said Li De, Chairman of Yuanhe Energy. “The system will greatly enhance the primary frequency modulation response performance of the generating units and help improve the frequency stability of the power grid.”
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