Facade power generation method and device suitable for building integrated photovoltaic

Abstract

The invention relates to the technical field of photovoltaic system design and power generation amount calculation, and provides a facade power generation method and device suitable for building integrated photovoltaic, and the method comprises the steps: obtaining the annual average illumination hours of a project location, and correcting the annual average illumination hours in combination with a preset inclination angle coefficient, thereby obtaining the facade equivalent illumination hours; according to the orientation of the building facade, a corresponding orientation reduction coefficient is obtained from a preset orientation reduction coefficient table, and the equivalent illumination hours, obtained in the previous step, of the facade are corrected through the orientation reduction coefficient; based on the building structure and the obstacle layout, determining an actual shielding area of the photovoltaic module, calculating the proportion of the shielding area to the total laying area of the photovoltaic module, and obtaining a shielding loss proportion; calculating the annual energy output of a single facade; and summarizing the annual generating capacity of the plurality of building facades to obtain the total generating capacity of the building integrated photovoltaic system.

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