Recently, China Power Construction new energy market again sent good news: the world's largest carbon dioxide energy storage power station survey and design. The project achieves energy storage through physical phase transformation, with high conversion efficiency and safety and environmental protection, which is of great significance to promote the high-quality development of China's new energy storage industry and accelerate the construction of a new power system.

Kazakh Autonomous County, the construction of a set of compressed carbon dioxide energy storage system, the planned capacity of 100MW, energy storage time of 8 hours, power generation time of 10 hours, the use of non-secondary combustion compressed carbon dioxide energy storage process system. The project is a new energy storage demonstration project supporting the construction of large-scale scenery bases in desert, Gobi and desert areas, and is also the world's largest carbon dioxide energy storage power station.

Carbon dioxide energy storage is a kind of gas-liquid interconversion and two-state cooperative energy storage technology. Its basic principle is to use surplus electricity to compress carbon dioxide gas at normal temperature and pressure into liquid during the low period of electricity consumption, and store the heat generated during the compression process. During peak power consumption, the stored heat energy is used to heat liquid carbon dioxide into gas, driving turbines to generate electricity.

After the completion of the project, it can effectively alleviate the peak load pressure of the power grid in Xinjiang, reduce the rate of wind and light abandonment, solve the problem of large-scale new energy connected to the grid, and improve the stability and reliability of the power grid. At the same time, it will vigorously promote the development of new energy storage to scale, industrialization and marketization, and further promote the improvement and upgrading of China's high-end energy storage technology, which is of great significance for the construction of a clean, low-carbon, safe and efficient new energy system.Editor/Zhang Liyuan