Abstract
As a considerable amount of greenhouse gas emissions are caused by the transport sector, the German government has initiated programs for the promotion of electric vehicles (EVs) and the installation of charging infrastructure. A harmonized solution for vehicle authentication, payment methods, and pricing models is required since currently available charging stations are highly heterogeneous resulting in challenges for EV users and potentially in dissatisfying charging experiences. To provide recommendations for charging station operators and transport policy measures, a stated preference experiment was designed. In computer-assisted personal interviews, 450 respondents were provided with choice tasks with different configurations, where they indicated their preferences by choosing the most preferred charging station. Results from a mixed multinomial logit model indicate that future charging stations should enable vehicle authentication via the charging cable (Plug&Charge), provide card-based payment (debit or credit card), and charge per amount of electricity (kWh). Further, higher shares of renewable energy at charging stations are preferred and tend to increase the acceptance of EVs.
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