In view of the excessive energy consumption caused by building demand-side matching, it is very important to combine energy storage systems and renewable energy to improve equipment energy efficiency and building energy efficiency, and correctly match demand-side management (DSM). This paper combines the energy coupling system with demand-side management to get the best balance of energy production and power grid load pressure. A photovoltaic/thermal coupling system that can be combined with heat pumps and energy storage in a single building is proposed, and a dynamic simulation model is developed to describe its operating performance. The simulation results show that the coupling system has a good energy-saving effect in the heating and cooling seasons. The energy-saving potential of the applied management strategy is 41.77 %, and the energy-saving rate is increased by 9.56 %. The cost and energy usage in different configurations are analyzed to evaluate the feasibility of combining the coupled system with demand-side management applications. It is found that the energy consumption of the coupled system is low, and the economy of its configuration selection is related to the peak and valley electricity prices, and the corresponding optimal configuration reduces the economic consumption by 58.89 % per year, which is 27.18 % less than that when the management strategy is not implemented. In addition, due to the utilization of hybrid PV/thermal energy and the smoothing effect of the temperature after heat energy storage, the payback period of the coupled system is as low as 6.23 years without relying on specific tariff factors.