The selection of capacity and power for energy storage power station requires comprehensive consideration of multiple factors to achieve optimal results. These factors include the characteristics of energy demand on the demand side, the types and distribution of energy on the supply side, the load characteristics of the power grid, and the cost of energy storage technology. When selecting the capacity and power of energy storage power stations, the following aspects need to be comprehensively considered:
Firstly, based on the characteristics of energy demand on the demand side, determine the capacity and power of energy storage power stations to meet energy peak shaving, balancing, and reserve capacity requirements. When analyzing the energy situation and demand characteristics on the demand side and supply side, clarify the functions and goals of energy storage stations.
Secondly, consider the types and distribution of energy on the supply side, select suitable energy storage technologies and capacities, and improve energy utilization efficiency. By evaluating the advantages and disadvantages of different energy storage technologies, such as lithium iron phosphate batteries, lead carbon batteries, and compressed air energy storage, select the most suitable technical solution.

Thirdly, considering the load characteristics of the power grid, determine the power and capacity of energy storage stations to improve the stability and reliability of the power grid. The system planning scheme should be formulated based on the load characteristics of the power grid to ensure that the energy storage power station can meet the needs of the power grid under any load situation.

Fourthly, evaluate the potential economic benefits of energy storage power stations, including reducing energy costs, improving grid efficiency, etc., to maximize economic benefits. Economic evaluation should consider the investment cost, operating cost, and potential economic benefits of energy storage power stations to determine the optimal capacity and power scale.
Fifth, based on the above evaluation results, develop a system planning scheme, determine the capacity and power of the energy storage power station, and design system operation and management strategies. By comprehensively considering factors such as demand characteristics, technical options, economy, and system planning, efficient operation and economic benefits of energy storage power stations can be achieved.
It is necessary to flexibly adjust the selection scheme according to specific situations and needs to meet practical application needs. Therefore, when selecting the capacity and power of energy storage power stations, we should evaluate and adjust them based on specific demand situations to achieve optimal results.