Electric vehicle (EV) charging is widely studied in the scientific literature. However, there seems to be a notable research gap regarding the charging power limitations of the on-board chargers of the EVs. In this paper, the present state of the maximum charging powers of the on-board chargers is thoroughly analysed using data from two commercial charging sites. Furthermore, the results of the analysis are used along with an EV fleet development model to form realistic future scenarios, which are then used for a simulation model that couples the charging sessions with measured charging profiles. The results of the simulations show that, due to the evolution of the EV fleet, the average energy consumption in commercial locations will increase by 134% on average from 5.6 to 8.7 kWh/EV to 13.0–19.6 kWh/EV during 2020–2040. Similarly, the peak of the normalized power increases by 77% on average from 1.1 to 1.4 kW/EV to 1.6–2.9 kW/EV. These values are essential to guide long-term decisions such as optimal sizing of charging infrastructure and parking policies.
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