Economic benefits of distributed photovoltaic power generation under different operating modes in situation of subsidy reduction:A case of Beijing-Tianjin-Hebei
Distributed photovoltaic power generation has become one of the important strategic choices for low-carbon energy development,but under the policy adjustment,the uncertainty of distributed photovoltaic power generation project benefit restricts its large-scale development.Therefore,exploring the economic benefits of distributed photovoltaic power generation for different operating modes is of great significance for promoting the high-quality development of the industry.In this paper,three methods of net present value,dynamic investment payback period and internal rate of return are used to study the economic benefits of distributed photovoltaic power generation projects for residents and industrial and commercial users in Beijing-Tianjin-Hebei under the background of subsidy reduction from 2017 to 2022,and the sensitivity of the influencing factors are analyzed.The results show that the economic benefits of distributed photovoltaic power generation projects decline under the reduction of fixed subsidies,but still have a certain benefit.The economic benefits of the mode of"self-use,surplus online"are better than those of"full online",and the higher the proportion of self-use is,the better the economic benefits are.In the"full online"mode,the key factors affecting the economic benefits of users are the annual power generation and photovoltaic benchmark on-grid price.In the mode of"self-use,surplus online",the biggest factors affecting the economic benefits of residents and industrial and commercial users are respectively annual power generation and sales electricity price,and with the increase of the proportion of self-use,the impact of sales electricity price on the economic benefits of the two types of users increases.
distributed photovoltaic power-generationsubsidy reductionoperation modeseconomic benefitsBeijing-Tianjin-Hebei region
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