Abstract
The development of distribution network in China lags behind the transmission network seriously, which is difficult to meet the development needs of high proportion of renewable energy power system in the future. Facing the huge investment demand of distribution network, it is urgent to improve the existing extensive experience based investment decision-making method and avoid the subjectivity of qualitative index evaluation method. In this paper, the life cycle theory and input-output method are used to study the quantification of distribution network investment benefit. The quantitative models of economic benefit and social benefit of distribution network investment are established to provide support for the comparison and decision-making of distribution network projects. Finally, an empirical analysis of the investment benefit model of a high-voltage distribution network project is carried out to verify the feasibility of the research results.
Highlights
With the goal of carbon peak and carbon neutral proposed, high proportion of renewable energy power system has become an inevitable development trend
There is a lack of clear standards for the evaluation and comparison of distribution network projects, and there are many problems in the project arrangement, so it is necessary to conduct in-depth research on the quantification of distribution network investment benefit [2,3]
The social benefits of the special investment project of the photovoltaic poverty alleviation distribution network project are measured by the electricity revenue brought by the photovoltaic power station to the poor households, and the social benefits of the photovoltaic poverty alleviation are calculated by considering the key variables such as the regional light resource endowment, the photovoltaic installed capacity and the photovoltaic grid price
Summary
With the goal of carbon peak and carbon neutral proposed, high proportion of renewable energy power system has become an inevitable development trend. In order to adapt to the flexible regulation and consumption of renewable energy, the investment scale of distribution network construction is increasing, and its investment benefit has been focused on [1]. The current distribution network investment benefit evaluation relies more on experience and qualitative index scoring, and the analysis of investment benefit in relevant literature is lack of comprehensiveness and scientificity [4]. In order to comprehensively and intuitively reflect the investment benefits of distribution network projects, this paper uses the life cycle theory to build a quantitative model of economic and social benefits of distribution network investment in monetary terms, which provides support for the comparison and decision-making of distribution network projects
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