Abstract: This paper addresses the problem of evaluating and improving regional new energy consumption capacity, taking into account multidimensional factors such as power supply structure, grid characteristics, load characteristics and energy storage configuration, and realizes the quantitative evaluation of regional new energy consumption capacity by constructing optimization objective functions and constraints. Taking province A in northwest as a case study, the study analyzes the status quo consumption capacity and proposes synergistic optimization strategies for power-side, grid-side, load-side, and energy storage systems, through the implementation of which the new energy consumption rate in province A can be increased from 87.8% to 94.6%. The sensitivity analysis reveals that the grid transmission capacity, the peaking capacity of conventional units and the energy storage capacity are the most significant factors affecting the consumption capacity.