Research on regional energy storage dispatch needs based on the uncertainty of renewable energy output

This paper explores integrating energy storage systems in regional grids, focusing on mitigating the uncertainty and variability associated with renewable energy sources. Utilizing Monte Carlo simulations, the study quantifies potential power supply and demand deviations due to the fluctuating renewable energy coupled with load demand variations. It is found that the significant impact of load fluctuations, especially during high renewable energy output periods, is on the overall stability of the power system. By conducting a case study in Jiangsu province, it was revealed that the optimal energy storage capacity needed to balance these fluctuations, finding that a strategic deployment of 317.48 GWh in energy storage can dramatically reduce Lost Load Shedding (LLS) costs from 99.165 billion CNY to 0.68 billion CNY. The research contributes valuable insights into optimizing energy storage systems in regional grids.