Investment Analysis of Grid-Side Energy Storage Under Diverse Microgrid Scenarios

With the deepening implementation of the "dual carbon" strategy and the accelerating integration of large-scale renewable energy into the grid, grid-side energy storage technology has become a critical component in supporting the stable operation of microgrids and has gradually emerged as a focal point of industry research. However, investments in grid-side energy storage typically involve large-scale deployments, high initial construction costs, and certain financial and technical risks. Moreover, the significant differences among various microgrid application scenarios result in strong context dependence regarding the economic viability of energy storage systems. This study focuses on typical microgrid applications and establishes an economic benefit evaluation framework for grid-side energy storage power stations, systematically analyzing their investment returns. The findings help clarify the cost-benefit structures of grid-side energy storage across different scenarios and provide scientific support for investment decisions and policy formulation.