Economic analysis of shared energy storage in multi micro-energy network

With the proposal of carbon peak and carbon neutrality target, the micro-energy network has become a breakthrough point for adjusting the energy structure and economic optimization. This paper constructs an operation architecture of micro-energy network (MEN) based on shared energy storage station (SESS) and analyses its operation mode. An optimal scheduling model of MEN with objective of minimizing energy purchase costs and paying service fees to SESS is established to achieve the optimal daily operation cost of each MEN. Finally, economic scheduling of three MENs is analyzed, and configuration capacity and operating cost of independent energy storage station and SESS are compared. The example results show that after the configuration of SESS the capacity of energy storage is reduced by 16.17%, 46.36% and 10.94%, and the operation cost is reduced by 39%. The research results present that SESS can effectively reduce the scale of energy storage and improve the economy of MEN operation.