中国电力供应链系统的环境效率：双重异质性视角

IF 9.8 1区社会学 Q1 ENVIRONMENTAL STUDIES

Environmental Impact Assessment Review Pub Date : 2025-02-26 DOI:10.1016/j.eiar.2025.107876

Ruizeng Zhao , Jie Wu , Jiasen Sun

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引用次数: 0

摘要

评估电力系统的环境效率可以为绿色低碳发展提供指导。然而，目前的评估框架未能充分考虑功率输出和技术的异质性。本研究建立了一个包含双重异质性的网络数据包络分析模型，以评估由并联和串联连接组成的复合电力供应链系统（ESCS）的环境效率。目前的研究有几个关键发现。首先，2011 - 2021年中国ESCS的环境效率呈m型趋势。其次，清洁能源电力子系统效率低是降低ESCS整体环境效率的主要因素。第三，ESCS及其子系统的效率存在显著的区域差异。四是东部地区具有技术优势，中西部地区管理水平有待提高，东北地区技术进步空间较大。第五，ESCS环境效率的空间分布呈现出高-高-低-低的集聚格局。最后，根据实证结果提出了针对性的建议。

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Environmental efficiency of electricity supply chain systems in China: A dual heterogeneity perspective

Evaluating the environmental efficiency of electricity systems can provide guidance for green and low-carbon development. However, the current evaluation framework fails to fully account for heterogeneity in power output and technology. This research develops a network data envelopment analysis model incorporating dual heterogeneity to assess the environmental efficiency of a composite electricity supply chain system (ESCS) comprising parallel and series connections. The current study yields several key findings. First, the environmental efficiency of China's ESCS exhibits an M-shaped trend from 2011 to 2021. Second, the low efficiency of a clean energy power subsystem is the primary factor reducing the overall environmental efficiency of ESCS. Third, significant regional disparities exist in the efficiency of ESCS and its subsystems. Fourth, the eastern region has technological advantages, the western and central areas require improved management levels, and the northeastern region has substantial room for technological advancement. Fifth, the environmental efficiency of ESCS exhibits spatial distribution characterized by agglomeration patterns of high–high and low–low. Lastly, targeted recommendations based on empirical findings are provided.

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来源期刊

Environmental Impact Assessment Review ENVIRONMENTAL STUDIES-

CiteScore

12.60

自引率

10.10%

发文量

200

审稿时长

33 days

期刊介绍： Environmental Impact Assessment Review is an interdisciplinary journal that serves a global audience of practitioners, policymakers, and academics involved in assessing the environmental impact of policies, projects, processes, and products. The journal focuses on innovative theory and practice in environmental impact assessment (EIA). Papers are expected to present innovative ideas, be topical, and coherent. The journal emphasizes concepts, methods, techniques, approaches, and systems related to EIA theory and practice.