Optimization of building photovoltaic spatial layout based on zero carbon target

Zero carbon buildings focus on the photovoltaic space layout caused by high plot ratio, compact space and sheltered area. This paper carries out the grid solar irradiation calculation for each surface of the building, and puts forward the suitable installation area for the building photovoltaic system. Based on the three-dimensional visualization model, the power generation of the photovoltaic system is refined and modified according to the solar irradiation on each surface.Based on the layout optimization, the power generation potential of each surface as well as the power generation time per unit installed power will be extended significantly, so as to improve final economic benefits.