This project is a 500kW/1044kWh energy storage system with a liquid cooling solution, located in Jiangsu, China. Integrating an energy capacity of 1044kWh with a power output of 500kW, the system is designed for multiple applications, including peak shaving, load shifting, and backup power supply. The advanced liquid cooling system ensures precise thermal management, significantly enhancing temperature uniformity and operational efficiency of the battery packs. This guarantees safe, reliable, and long-lasting performance under various operating conditions. Situated in Jiangsu, a province with robust economic activity and high electricity demand, the project not only helps optimize energy costs and improve power supply reliability for end-users but also contributes valuable flexibility to the regional grid. It serves as a model for promoting green energy transition and smart energy management.