This study demonstrates that modular optimization of battery boxes and cooling ducts, coupled with CFD-guided design, significantly enhances the thermal performance of containerized energy storage system. Key innovations include tapered ducts, angled deflectors, and grid fusion. . The energy storage container integrates battery cabinets, battery management systems, converters, thermal management systems, fire protection systems, etc. It has the characteristics of high modularity, short construction period, and easy transportation and installation. It is suitable for many. . The rapid development of renewable energy and smart grids has heightened the demand for efficient energy storage solutions. Among these, container-type energy storage system has emerged as a critical technology due to their modularity, scalability, and adaptability. Central to these systems is the. . Temperature increases due to solar radiation exposure in the container walls of a refrigerated container afects its energy consumption. The aim of this paper is to simulate thermal efect of solar radiation on the temperature increases on the refrigerated container surfaces by means of computational. . estigated based on the fluid dynamics simulation method. The results of the effort show that poor airflow organization of the cooling air is a significant influe cing factorleading to uneven in en have a mismatch between the energy supply and demand. It is crucial to implement a form of Thermal. . of a containerized energy storage system. This system is typically used for large-scale energy storage applications like renewable energy integ allenges of the battery storage industry. More importantly, they contribute toward a sustainab e and resilient future of cleaner energy. Want to learn more. . The storage system is the core of the container. Design considerations should include battery capacity, voltage range, and cycle life, with a focus on maximizing energy storage efficiency and system longevity. Effective thermal management ensures optimal battery performance and extends lifespan.