Title: Evaluation method for energy conservation and emission reduction potential of photovoltaic new energy based on entropy weighted matter element

Authors: Wei He; Rujie Liu; Jicheng Zhang; Lixin Wu

Addresses: Three Gorges Electric Power Co., Ltd., Wuhan, 430021, China ' Three Gorges Electric Power Co., Ltd., Wuhan, 430021, China ' Three Gorges Electric Power Co., Ltd., Wuhan, 430021, China ' Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China

Abstract: In order to shorten the evaluation time of energy-saving and emission reduction potential and reduce evaluation errors, a method based on entropy weighted matter element for evaluating the energy-saving and emission reduction potential of photovoltaic new energy is proposed. First, an evaluation index system is established for the potential of energy conservation and emission reduction in photovoltaic new energy. Then, by calculating the information gain rate of each indicator, measuring the importance of each indicator, and achieving quantitative processing of the indicator system, accurate evaluation results can be obtained. Finally, A matter element model is constructed for evaluating the potential for energy conservation and emission reduction of photovoltaic new energy, and the entropy weight of the evaluation indicators is calculated to complete the evaluation of energy conservation and emission reduction potential. The experimental results show that the proposed method can reduce evaluation errors and time overhead, with a maximum evaluation error of only 1.5%.

Keywords: entropy weight matter element; photovoltaic new energy; energy conservation and emission reduction; potential assessment.

DOI: 10.1504/IJETP.2024.138537

International Journal of Energy Technology and Policy, 2024 Vol.19 No.1/2, pp.50 - 64

Received: 07 Jun 2023
Accepted: 19 Oct 2023
Published online: 10 May 2024 *

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