Analysis of the CO2 Emissions Due to Charging of Battery Electric Vehicles Considering the Hourly Power Mix

In this paper will be analyzed the carbon dioxide (CO2) emissions of battery electric vehicles (BEVs) during charging. The charging will be performed at a fast direct current (DC) charging station. In this case a high amount of power is required in a short amount of time. The CO2 emissions for the power supplied to the charging station will be calculated considering the power mix in Romania at several selected hours and days. Different BEVs from various car manufacturers are considered in the paper. These BEVs represent the models with the highest sales in Europe in 2022, for which the charging is usually performed under one hour. Fuel consumption for each selected BEV is considered for cold and warm weather, compared to other researchers’ work where the average fuel consumption was taken into account. The results from the MATLAB software demonstrate that the increased fuel consumption of BEVs in cold weather causes higher CO2 emissions.