Long-Term Planning of Shared Energy Storage for Multiple Renewable Energy Bases Considering the Growth of Renewables and Load Demand

To cope with the development dilemma of high investment cost and low utilization of energy storage, and solve the problem of energy storage flexibility and economical resource allocation for multiple renewable energy bases regulation requirements. A capacity allocation strategy for sharing energy storage among multiple renewable energy bases based on the concept of energy sharing is proposed. First, the operation mode of shared energy storage in multiple renewable energy bases is constructed to meet the adjustment needs of multi-agent. Secondly, considering the increasing installed capacity and load demand of new energy, a long-term investment planning model for centralized shared energy storage serving multiple renewable energy bases is proposed. Finally, a case study is used to verify the feasibility of the proposed model, and the economics of the shared model is verified by comparison with the self-built model of a single renewable energy base.