Statistical analysis of Electric Vehicles charging, station usage and impact on the grid

Abstract

In order to evaluate the impact of electric vehicles (EVs) on the distribution grid and assess their potential benefits to the future smart grid, it is crucial to study the EV charging patterns and the usage charging station. Though EVs are not yet widely adopted nationwide, a valuable methodology to conduct such studies is the statistical analysis of real-world charging data. This paper presents actual EV charging behavior of 11 brands and 17 models from EV users and charging stations usage at the University of California, Los Angeles for more than one year. Twenty-four-hour EV charging load curves have been generated and studied for various load periods: hourly, daily, monthly, quarterly and yearly. Finally, the effect and impact of EV load on the California distribution network are evaluated at different EV penetration rates.