Comprehensive Evaluation of Power Supply Quality for Power Sale Companies Considering Customized Service

In the environment of retail electricity market, different types of power sale companies exist and electricity customers are given more options to choose proper companies according to their own demands. Under this circumstance, a comprehensive evaluation of power supply quality (1SQ) for power sale companies may provide a good reference for customers, as well as incentive companies to improve their PSQ level to gain more market shares. In this paper, focusing on power supply quality, a comprehensive evaluation method for power sale companies is proposed, including both objective scientific evaluation and subjective opinion from customers with universal and customized services. Firstly, an evaluation index system of power supply quality is formulated, including indices of power quality, reliability, economy, service quality and market share. Then, DEMATEL-ANP-antientropy and grey correlation evaluation methods are adopted, and subjective opinion from customers with different services are reflected in the form of weights. Finally, while displaying evaluation results, both benchmarking among all companies in the same evaluation cycle and comparison between results of a certain company in different cycles are presented and discussed. Case study results demonstrated that the proposed comprehensive evaluation methods can reflect both objective overall performance and subjective evaluation of power companies, providing a more comprehensive and dynamic comparison for different companies in the perspective of PSQ.