Led by Shenzhen Power Supply Bureau and jointly developed by Hopewind Electric, Tsinghua University and other partners, the project marks a significant breakthrough in the integration of grid-forming energy storage technology with urban distribution networks. . To support the construction of large-scale energy bases and optimizes the performance of thermal power plants, the research on the corporation mode between energy storage and thermal energy, including the optimization of energy-storage capacity and its operation in large-scale clean energy bases. . China is building pumped-storage hydropower facilities to increase the flexibility of the power grid and accommodate growing wind and solar power. As of May 2023, China had 50 gigawatts (GW) of operational pumped-storage capacity, 30% of global capacity and more than any other country. China's. . This study tackles these challenges by optimizing the configurations of Modular Mobile Battery Energy Storage (MMBES) in urban distribution grids, particularly focusing on capacity-limited areas. Our method investigates five core attributes of energy storage configurations and develops a model. . In this paper, a large-scale clean energy base system is modeled with EBSILON and a capacity calculation method is established by minimizing the investment cost and energy storage capacity of the power system and constraints such as power balance, SOC, and power fluctuations. The research proposed. . Recently, China's first grid-forming wind-solar-storage integrated system applied in substations for real-time power supply assurance -- the Houhai No. 3 (Chunhui Substation) Demonstration Project -- was successfully put into operation. The industrial sector plays a crucial role in achieving the goals set by the Paris Agreement and China's. .