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Investment efficiency evaluation of electric power substation projects by stages using the EWM-DEA model

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  • Xu Ma
  • Zhenyu Zhao

Abstract

Power grid construction projects are crucial for national industrial development. To improve the investment efficiency (IE) of substation engineering construction, this study determines the influencing factors of the input and output of substation construction projects through the entropy weight method (EWM) principle and constructs the evaluation model of IE of substation engineering construction by using data envelopment analysis (DEA) theory. Considering substation projects of a power grid company as an example, this article evaluates and compares the investment economy of one-time and phased construction to maximise the economic efficiency of substation project construction. Hence, our study provides scientific reference for investment decision-making involving substation projects and promotes collaborative planning of various regions, projects, and assets under the construction of substation projects. The results show that the IE of phased substation construction projects is higher than that of one-time construction. This effectively improves the IE of power grid companies.

Suggested Citation

  • Xu Ma & Zhenyu Zhao, 2024. "Investment efficiency evaluation of electric power substation projects by stages using the EWM-DEA model," International Journal of Industrial and Systems Engineering, Inderscience Enterprises Ltd, vol. 46(1), pages 34-57.
    • Handle: RePEc:ids:ijisen:v:46:y:2024:i:1:p:34-57
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