As the energy demand from the building operation sector continues to rise, the power system’s responsiveness has struggled to keep pace with the current rate of development. In the context of large-scale buildings, regular cooling systems often account for the largest share of the total building expenditure profile. Therefore, the ability to conserve part or all of the energy required for the cooling system could significantly reduce consumption and alleviate pressure on the grid. In response to this challenge, the energy model of Hanoi University of Science and Technology campus has been chosen as the research object. This model will incorporate a renewable energy system designed to meet the cooling system’s consumption needs for the entire building. To enhance efficiency, a thermal energy storage system in the form of ice thermal storage will be integrated into the model. The simulation results from the proposed system’s operation will be used to assess the effectiveness of deploying a combined solar panel system and thermal energy storage in actual buildings.