Application mode selection and optimal configuration of centralized shared energy storage

Energy storage system (ESS) has been considered a flexible resource provider in the power system. However, the investment of ESS is still relatively high. In order to promote the large-scale application process of ESS and reduce the cost of energy storage, shared energy storage (SES) is consequently recognized as a promising business model. From the perspective of centralized SES operators, this paper proposes three application modes of SES, including the mode of sharing revenue with renewable energy plants on the generation side, the mode of sharing revenue between electricity sales companies and SES operators, and the mode of providing energy storage services to users. Then the optimal configuration method of SES in three application modes is proposed. Finally, an application mode selection method for decentralized reuse of centralized ESS is developed for SES operators.