In the field of energy storage, energy storage power stations play an important role. The application of energy storage power station technology runs through all aspects of power generation, transmission, distribution, and power consumption in the power system. It realizes peak shaving and valley filling of the power system, smoothing and tracking plan processing of renewable energy power generation fluctuations, efficient system frequency modulation, and increases power supply reliability. 1. What is an energy storage power station Energy storage power stations are power stations set up to regulate peak and valley power consumption problems. Energy storage power stations are composed of energy storage units and auxiliary facilities, access devices, and measurement and control devices. The establishment of energy storage power stations is to store the electricity that we are going to waste during low-peak power consumption periods and release it back to the power grid during peak power consumption to achieve the purpose of peak shaving and valley filling. 2. Composition of energy storage power station system Energy storage power station system can be divided into six main parts, namely renewable energy, energy transmission system, conversion system, storage system, management system and network access system.