Impact of home- and destination charging on the geographical and temporal distribution of electric vehicle charging load

In this paper, we analyse how a shift from home charging to destination charging impacts the charging demand, based on data from a regional transport model and results from an EV survey. The impact and flexibility potential from EV charging depends on where chargers are located and how they are used. Since home charging and destination charging have different characteristics, it is necessary to analyse how the combination of home- and destination charging impact the total charging demand. To address this, we perform a case study for Western Norway, which is divided geographically into 2570 zones. The charging demand is distributed to the zones in two charging scenarios. The results show that more destination charging will reduce the load in many residential areas, while the demand increases in zones that contain large workplaces, malls, universities and hospitals. Moreover, it is found that 40% of the EV charging demand is from work-related travels. Thus, there is a potential for more workplace charging than what is the current situation according to the EV survey results.