Potential analysis of residential composite energy storage system application based on double-layer optimization model

Along with the further integration of demand management and renewable energy technology, it is the key to make optimal use of energy storage facilities and coordinate operation with other facilities. On the basis of the present study, the author takes into account the current situation of the power storage equipment. Based on the measured data for one year, four cases are designed for the compound energy storage system. In this paper, a two-tiered optimization model is proposed, which is used to optimizing the capacity of the power storage facilities and yearly production of the system. Furthermore, the paper makes a comparative analysis on the performance of the four cases from energy, environmental and economic aspects. It is concluded that this kind of energy-storing equipment can enhance the economy and environment of residence energy system. Thermal energy storage system has the shortest payback period of 7.84 years, but the CO 2 emissions are the least. Coupled with future price volatility and carbon tax, the hybrid electric energy storage system has a good development potential. However, the current cost of investment is very high, and it will not be possible to recover it in 10 years. Finally, it is recommended that the cost of equipment should be reduced in combination with subsidies and incentives to promote further. The research results not only fill the blank of the study area, at the same time, it provides some suggestions for further development of research and industry on user-side energy storage.