Net Zero Energy Driven Power Sharing for Aggregated Buildings: A Peer Aggregation Model

Under the background of carbon peak and neutrality, the economic and environmental requirements are constantly improving for buildings. The energy optimization and sharing of buildings are of great research significance. Based on this, this paper constructed a peer aggregation model for buildings energy sharing driven by net zero energy. On the whole, the energy sharing framework mainly includes two parts: price equivalence publication and supply-demand information aggregation. The energy sharing center aggregated and analyzed the sharing information of all buildings, generated the sharing price incentive signal and released the price to all buildings. Then, buildings could optimize internal resources autonomously after receiving the latest sharing price released by the energy sharing center. By carrying out the interactive iteration of buildings autonomy optimization and overall coordination and sharing, the coordination of energy sharing among buildings was realized. In the autonomous optimization level, a multi-objective autonomous optimization model for different buildings was established aiming at the needs of economy and comfort of buildings. In the overall coordination and sharing level, an energy coordination sharing strategy driven by net zero energy for the all buildings was proposed by introducing the role of net zero energy level in the making of sharing price. Finally, case study shows that the energy sharing model proposed in this paper can promote energy complementarity and improve the overall benefits, and the influencing factors of buildings energy coordination and sharing were verified and analyzed.