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Consumer preferences for public charging infrastructure for electric vehicles

机译：消费者对电动汽车公共充电基础设施的偏好

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The lack of public charging infrastructure is often referred to as an important barrier to the diffusion of electric vehicles. As the construction of charging stations is a costly endeavour, the question arises as to how maximum benefit for potential users can be achieved with limited resources. Therefore, our analysis deals with the factors that influence the attractiveness of public charging infrastructure from the perspective of potential users. Our analysis is based on the assessments of 1003 German car drivers on possible future charging infrastructure systems with different configurations regarding spatial coverage, charging duration and usage costs. We examined the preferences with regard to these features using a rating-based conjoint analysis. We also looked into the question of whether groups of car drivers can be identified that are characterised by specific preference constellations with regard to these features. Our key finding is that the majority of car drivers are unwilling to pay a basic fee for the possibility of using public charging infrastructure. Nevertheless, there are subgroups that value the public charging infrastructure more than other car drivers. In addition to implications for possible business models, this result indicates that public charging infrastructure could be important for attracting other target groups to electromobility besides classic early adopters of electric vehicles. Furthermore, our analysis shows that the charging duration at charging stations in cities and along the highway has a strong influence on the evaluation of the public charging infrastructure. The spatial coverage with charging stations in cities and along the highway, on the other hand, has a weaker influence. A central conclusion from this is that the existence of fast-charging stations should be prioritized over a close-meshed coverage with charging points when the charging infrastructure is expanded.
机译：缺乏公共充电基础设施通常被称为阻碍电动汽车普及的重要障碍。由于充电站的建设是一项昂贵的工作，因此出现了一个问题，即如何在有限的资源下实现对潜在用户的最大利益。因此，我们从潜在用户的角度分析了影响公共收费基础设施吸引力的因素。我们的分析基于对1003名德国汽车驾驶员对未来可能的充电基础设施系统进行的评估，这些系统在空间覆盖范围，充电持续时间和使用成本方面有不同的配置。我们使用基于评分的联合分析检查了对这些功能的偏好。我们还研究了以下问题：是否可以识别出具有针对这些功能的特定偏爱星座特征的汽车驾驶员群体。我们的主要发现是，大多数驾车人士不愿意为使用公共收费基础设施支付基本费用。尽管如此，仍有一些子群体比其他汽车驾驶员更看重公共充电基础设施。除了对可能的商业模式产生影响外，这一结果还表明，除了经典的电动汽车早期采用者以外，公共充电基础设施对于吸引其他目标群体参与电动汽车也可能很重要。此外，我们的分析表明，城市和公路沿线充电站的充电时间对公共充电基础设施的评估有很大影响。另一方面，城市和公路沿线充电站的空间覆盖范围影响较小。由此得出的主要结论是，在扩展充电基础设施时，应优先考虑快速充电站的存在，而不要使用密布的充电点。

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