Building-related electric vehicle charging behaviors and energy consumption patterns: An urban-scale analysis

Understanding electric vehicle (EV) charging behavior and energy consumption patterns is fundamental to support the transportation electrification trend. We analyzed a dataset of 2,385,173 charging sessions from 2,719 chargers across 158 stations in Beijing, China. First, the charging sessions of alternating-current slow chargers (ACSCs) are mainly affected by parking behavior related to adjacent buildings; conversely, the charging sessions of direct-current fast chargers (DCFCs) cater to urgent charging demands. Second, adjacent building type and public accessibility significantly impact a station's charging power profile. Public station profiles can be quantified by combining private and independent station profiles. Third, the impact of charger rated power on utilization rate varies by station type. The charger utilization rate increases with its rated power at independent and commercial stations, but decreases at workplace and residential stations. This study reveals the inherent behavioral and energy-use relationship between EVs and buildings, providing guidance for charging infrastructure planning.