Containerized energy storage system uses a lithium phosphate battery as the energy carrier to charge and discharge through PCS, realizing multiple energy exchanges with the power system and connecting to multiple power supply modes, such as photovoltaic array, wind energy. Containerized energy storage system uses a lithium phosphate battery as the energy carrier to charge and discharge through PCS, realizing multiple energy exchanges with the power system and connecting to multiple power supply modes, such as photovoltaic array, wind energy. Solar energy storage battery containers are essential components in modern renewable energy systems, enabling the capture and use of solar power even when the sun isn't shining. These containers house various battery technologies, each with unique characteristics in terms of efficiency, lifespan. Lithium-ion batteries, with their superior performance characteristics, have emerged as the cornerstone technology for solar energy storage. This article delves into the science behind lithium-ion batteries, their advantages over traditional storage solutions, and key considerations for optimizing. Containerized Battery Energy Storage System (CBESS) is an important support for future power grid development, which can effectively improve the stability, reliability, and power quality of the power system. These modular powerhouses are transforming everything from solar farms to mobile EV charging stations.