Capacity Compensation Mechanism of Independent Energy Storage Devices Considering Investment Recovery

As important flexible resources, independent energy storage devices can be employed to maintain the long-term abundant capacity of the renewable-dominated power system. However, the investment recovery of independent energy storage devices is almost impossible to achieve, which limits their development and application. Therefore, this paper focuses on the capacity compensation mechanism of independent energy storage devices to achieve investment recovery. Firstly, different compensation mechanisms worldwide are compared. Secondly, the costs and incomes of independent energy storage devices are analyzed detailedly. Finally, according to the situation in China, suggestions about the capacity compensation mechanisms for independent energy storage devices are proposed to support the achievement of investment recovery.