Energy Storage Science and Technology ›› 2025, Vol. 14 ›› Issue (3): 1210-1223.doi: 10.19799/j.cnki.2095-4239.2024.0836

• Emerging Investigator Issue of Energy Storage • Previous Articles     Next Articles

Life cycle benefit evaluation of shared energy storage based on improved TOPSIS-ANP-CRITIC

Shuangming DUAN1(), Tengfei LV1, Junhui LI1, Zhiqiang ZHAO2, Haojun LIU2, Yuyi ZHENG1   

  1. 1.Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education (Northeast Electric Power University), Jilin 132012, Jilin, China
    2.State Grid Hami Power Supply Company, Hami 839000, Xinjiang, China
  • Received:2024-09-06 Revised:2024-10-31 Online:2025-03-28 Published:2025-04-28
  • Contact: Shuangming DUAN E-mail:duansm@neepu.edu.cn

Abstract:

Addressing the inadequacies in existing benefit assessment methods throughout the full life cycle of shared energy storage, this paper proposes an evaluation approach that combines the Criteria Importance Through Intercriteria Correlation (CRITIC) method with the Analytic Network Process (ANP) to enhance the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS). First, a comprehensive evaluation system is established using economic, environmental, market, and social benefits as fundamental indicators, in accordance with the operational mode of shared energy storage in China. Next, experts are invited to assign scores using the ANP to derive subjective weights, while the CRITIC method calculates data correlations to determine objective weights. Then, a combined weighting method integrates the weights from the ANP and CRITIC methods equally, ensuring that more important factors exert greater influence in decision making and further enhancing data utilization. Finally, to overcome the limitation of traditional TOPSIS in providing results in a single form, the calculation of relative closeness to the ideal solution is refined by incorporating target scenarios that more intuitively reflect the development trend of shared energy storage and facilitate both horizontal and vertical evaluation comparisons among various scenarios. A pilot project of shared energy storage is employed as a case study, yielding the overall development trend of the project and the rankings of typical years. In the vertical evaluation, the closeness degrees to the expected targets for environmental and market benefits in the 15th typical year are 1.013 and 1.011, respectively, exceeding the expected targets, and in the horizontal ranking, the 15th typical year ranks first. The evaluation results validate that the proposed assessment method can accurately assess the development trend of shared energy storage and provide essential guidance for its construction.

Key words: shared energy storage, TOPSIS, comprehensive evaluation system, CRITIC, ANP

CLC Number: