Life cycle assessment: Driving strategies for promoting electric vehicles in China

IF 3.1 3区工程技术 Q2 ENVIRONMENTAL STUDIES

International Journal of Sustainable Transportation Pub Date : 2024-10-01 DOI:10.1080/15568318.2024.2410362

Huitian Liu , Dawei Hu , Luke Kelleher , Liming Wang

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引用次数: 0

Abstract

This study employed the Life Cycle Assessment (LCA) method to evaluate the greenhouse gas (GHG) emissions of passenger vehicles across 31 provinces in China. It examined the potential of Battery Electric Vehicles (BEVs), Hybrid Electric Vehicles (HEVs), and Plug-in Hybrid Electric Vehicles (PHEVs) in significantly reducing emissions compared to Internal Combustion Engine Vehicles (ICEVs). The findings revealed that HEVs, PHEVs, and BEVs substantially lower emissions under the national average electricity GHG emissions coefficient, with PHEVs being the most effective, reducing emissions by over 30%. However, disparities exist at the provincial level due to varying electricity structures, with BEVs not fully effective in reducing emissions in about ten provinces, including Liaoning. The study further categorized provinces into six groups using the K-means method to guide the promotion of different types of New Energy Vehicles (NEVs). Sensitivity analysis highlights the critical role of reducing electricity emission coefficients and adjusting PHEV's utility factor in achieving emission reductions. The study also notes that battery replacements in PHEVs and BEVs during their lifecycle could impede emission reduction in most provinces. To maximize the environmental benefits of NEVs, there is a need to move to a greener electricity mix. At the same time, strategies for promoting NEVs should vary for different provinces.

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生命周期评估：中国电动汽车推广战略

本研究采用生命周期评估（LCA）方法，对中国 31 个省的乘用车温室气体（GHG）排放量进行了评估。与内燃机汽车（ICEV）相比，该研究考察了电池电动汽车（BEV）、混合动力电动汽车（HEV）和插电式混合动力电动汽车（PHEV）在大幅减少排放方面的潜力。研究结果表明，在全国平均电力温室气体排放系数下，HEV、PHEV 和 BEV 可大幅降低排放量，其中 PHEV 最为有效，可减少 30% 以上的排放量。然而，由于电力结构的不同，各省之间也存在差异，在包括辽宁在内的约十个省份中，BEV 的减排效果并不理想。研究进一步利用 K-均值法将各省分为六组，以指导不同类型新能源汽车（NEV）的推广。敏感性分析强调了降低电力排放系数和调整 PHEV 实用系数对实现减排的关键作用。研究还指出，在大多数省份，PHEV 和 BEV 在其生命周期内的电池更换可能会阻碍减排。为了最大限度地发挥 NEV 的环境效益，有必要转向更环保的电力组合。同时，不同省份推广 NEV 的策略也应有所不同。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Sustainable Transportation Multiple-

CiteScore

8.90

自引率

2.60%

发文量

期刊介绍： The International Journal of Sustainable Transportation provides a discussion forum for the exchange of new and innovative ideas on sustainable transportation research in the context of environmental, economical, social, and engineering aspects, as well as current and future interactions of transportation systems and other urban subsystems. The scope includes the examination of overall sustainability of any transportation system, including its infrastructure, vehicle, operation, and maintenance; the integration of social science disciplines, engineering, and information technology with transportation; the understanding of the comparative aspects of different transportation systems from a global perspective; qualitative and quantitative transportation studies; and case studies, surveys, and expository papers in an international or local context. Equal emphasis is placed on the problems of sustainable transportation that are associated with passenger and freight transportation modes in both industrialized and non-industrialized areas. All submitted manuscripts are subject to initial evaluation by the Editors and, if found suitable for further consideration, to peer review by independent, anonymous expert reviewers. All peer review is single-blind. Submissions are made online via ScholarOne Manuscripts.