【Ten Years of Rapid Development in Chemical Engineering Equipment】The world’s first submerged liquid-cooled energy storage power station was put into operation in Guangdong from 2011 to 2023

Thread Content

This post was last edited by Desert Fish on 2023-10-2 at 07:30. Looking back at the ten-year development of chemical technology, celebrating the prosperity and strength of modern China. This is just a starting point to encourage more participation and lively discussions. HAICHUAN becomes even better with you involved! [Ten Years of Progress in Chemical Equipment] – a continuously updated summary thread; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html. Happy National Day! ! ! ----------------------------------------- The world’s first submerged liquid-cooled energy storage power station – the Meizhou Baohu Energy Storage Power Station operated by China Southern Power Grid – was officially put into operation on March 6, 2023. The commissioning of this power plant marks the successful application of the cutting-edge technology of submerged liquid cooling in new energy storage projects, contributing to China’s efforts to balance energy security and stability with green and low-carbon development. With a capacity of 70 megawatts/140 megawatt-hours, this energy storage facility can generate nearly 81 million kWh of electricity per year, based on 1.75 charging and discharging cycles per day, and it can help reduce carbon dioxide emissions by over 45,000 tons. Energy storage stations function as the city’s \"power banks\"; they convert electrical energy into chemical energy, which is stored in batteries during times of low electricity demand in the grid ； During peak electricity demand periods in the power grid, the stored chemical energy is converted into electrical energy for discharge, which enables participation in peak shaving and frequency regulation, helps to balance supply and demand, and enhances the capacity to utilize renewable energy. According to South Grid Energy Storage Company, energy storage batteries generate heat continuously during operation, and cooling is an important factor affecting the safety of energy storage stations. Previously, the cooling of energy storage batteries mainly relied on air cooling and liquid cooling; both of these cooling methods had the drawback of a slow rate of temperature reduction and long cooling times. Since 2022, SGRE Energy Storage Company has formed interdisciplinary research teams to tackle the key technologies related to submerged liquid-cooled battery energy storage systems, thereby resolving the technical challenges associated with using such systems in large-capacity energy storage applications. At the Meizhou Baohu energy storage station, the batteries are directly immersed in the coolant within the compartments, which enables direct, rapid, and thorough cooling of the batteries. This ensures that the batteries operate within their optimal temperature range, effectively extending their service life and improving the overall safety of the energy storage station. “The successful development of the submerged liquid-cooled battery energy storage system has led to an improvement in the safety technologies related to electrochemical energy storage, with the battery’s heat dissipation efficiency increasing by 50% compared to traditional methods. The Meizhou Baohu energy storage power station ensures that the temperature rise of the batteries during operation does not exceed 5 degrees Celsius, with a temperature difference between different batteries being no more than 2 degrees Celsius. ”Wang Zhiqiang, chairman of Southern Power Grid Energy Storage Technology Company, said. It took just over 4 months for the Meizhou Baohu Energy Storage Power Station to go from construction commencement to trial operation. “The equipment in the power plant adopts a prefabricated module structure; all the main system components are placed in containers, and assembly on-site allows for immediate commissioning. **This reduces the construction period, improves safety standards, and lessens the operational maintenance workload later on. ”Wang Linwei, an employee from the Construction Center of Southern Power Grid Energy Storage Technology Company, explained.