A refined economic and envirenmental benefits evaluation methodology for distributed rooftop photovoltaic stations

With the continuous introduction of incentive policies and reduction of the cost of photovoltaic (PV) modules, rooftop distributed photovoltaic system has expressed its satisfactory economic benefits, and in the future, it will play an important role in the new power generation system and the realization of the goal of carbon neutrality. The accurate analysis of the investment in distributed photovoltaic system may directly determine the smooth development of the project. In this paper, a comprehensive economic-environmental benefit evaluation method was proposed based on hierarchical consumption of distributed photovoltaic system, and the refined models of annual costs and benefits of distributed photovoltaic stations within the life cycle were also established, which were verified with the calculating examples.