ENERGY EFFICIENCY EVALUATION METHOD OF MINE INTEGRATED ENERGY SYSTEM BASED ON NSBM-DEA

Zeng Bo; Hu Pinduan; Wang Han; Song Yikai; Gong Dunwei; Liu Fengdou

doi:10.19912/j.0254-0096.tynxb.2023-1845

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (3) : 177-188. DOI: 10.19912/j.0254-0096.tynxb.2023-1845

ENERGY EFFICIENCY EVALUATION METHOD OF MINE INTEGRATED ENERGY SYSTEM BASED ON NSBM-DEA

Zeng Bo¹, Hu Pinduan¹, Wang Han¹, Song Yikai¹, Gong Dunwei², Liu Fengdou³

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Abstract

Based on an in-depth analysis of the "coal-energy" coupling mechanism between coal production, transportation, and energy flow in MIES, this paper comprehensively considers the diversity of clean energy and derived energy in MIES. Addressing the limitations of traditional energy efficiency assessment methods, which often neglect internal sub-processes and provide unidimensional evaluation results, we propose a new energy efficiency assessment method for MIES based on Network Slacks-Based Measure Data Envelopment Analysis （NSBM-DEA）. This method comprehensively accounts for the unique characteristics of MIES, including coal-energy coupling, multi-phase quality, and multi-energy utilization. By quantitatively decomposing the energy efficiency impacts of interrelated sub-processes in MIES, the proposed method enables scientific assessment of overall energy efficiency and identifies weak links. Finally, we conduct multi-scenario computational analyses using an actual energy system from a mine in Shanxi Province as a case study. The simulation results demonstrate the effectiveness of the proposed method.

Key words

mine / renewable energy / energy efficiency / coal flow-energy flow synergy / data envelopment analysis

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Zeng Bo, Hu Pinduan, Wang Han, Song Yikai, Gong Dunwei, Liu Fengdou. ENERGY EFFICIENCY EVALUATION METHOD OF MINE INTEGRATED ENERGY SYSTEM BASED ON NSBM-DEA[J]. Acta Energiae Solaris Sinica. 2025, 46(3): 177-188 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1845

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