The Meizhou Baohu energy storage power plant in Meizhou, South China's Guangdong Province, was put into operation on March 6. It is the world's first immersed liquid-cooling battery energy storage power plant.
Its operation marks a successful application of immersion cooling technology in new-type energy storage projects and is expected to contribute to China's energy security and stabilization and its green and low-carbon development.
Developed by China Southern Power Grid (CSG), the plant has a capacity of 70 megawatts/140 megawatt-hours. It is expected to generate nearly 81 million kilowatt-hours annually, meeting daily power demands of 3.5 million users during the peak of electricity consumption and eliminating more than 45,000 metric tons of carbon dioxide emissions.
Since 2022, CSG has launched teams to focus on scientific research of materials science, power electronics and automatic control, intending to conquer key technologies that use liquid-cooled battery energy storage systems in large-capacity energy storage systems.
It was the first time that the battery was directly immersed into the cooling liquid, which realizes fast, direct and sufficient cooling, guaranteeing operation of the battery at its optimum temperature and effectively expanding its service life while improving safe performance of the energy storage power plant.
Construction of the Meizhou Baohu energy storage power plant started in October 2022 and all the equipment was connected to the grid this February.
Wang Linwei, a staff member at the construction center of CSG's Energy Storage Co., Ltd., said that the plant adopts the prefabricated cabin-type equipment and the main equipment of the system is placed in a container. All the equipment is assembled on-site which shortens the construction period and ensures safe engineering.
(Executive editor: Xie Yunxiao)
