Comprehensive analysis of electric vehicle (EV) discontinuation: assessing satisfaction with replacement vehicles from multiple angles

초록

Electric vehicles (EVs) have become a significant policy tool for reducing greenhouse gas emissions and are increasingly preferred by individuals due to their advanced functionalities, resulting in their growing prominence. However, a recent study identified some users who discontinued owning EVs because of challenges related to charging infrastructure and socio-demographic factors, necessitating further examination. This study aims to analyze the level of satisfaction among these discontinuers towards their discontinued EVs and investigate variations across different models. In addition, we explore their heterogeneity and its correlation with variables such as socioeconomic characteristics, travel behavior, EV characteristics, charging behavior, and attitudes. Data from 366 EV discontinuers were analyzed using latent class cluster analysis. Four clusters were identified based on satisfaction levels toward their old EVs that are no longer being used or sold. Cluster 1 comprises higher-income individuals with potential for quick return to the EV market. Cluster 2 shows similarities with Cluster 1 but requires improvements in battery technology and charging infrastructure. Cluster 3 includes older individuals with long-range EVs who stopped using EVs for reasons other than dissatisfaction. Cluster 4 consists of young, lowincome users with potential return to the EV market through price-efficient EV options. Additionally, a post-hoc analysis of purchase intentions reveals varied likelihoods of reentry into the EV market across clusters. These findings can guide policymakers in improving EV technology and supporting specific user groups to increase EV adoption rates.

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