## 3 Results
### Profiles for Energy Consumption and Session Duration  
Figures 9 and 10 show the distribution of energy consumption (in kWh) and duration values (in minutes) for each recharging session from AC and DC recharging points. The figures present the Kernel Density Estimation (KDE) of all the values (top section), plus the boxplot of consumption values (bottom section), containing the summary of the distribution for each classification of maximum power output (minimum and maximum, quartiles, median, average and outliers). In addition, Figure 11 shows the comparison between duration and energy consumption for each registered recharging session from AC and DC recharging points, including their respective median and average values; such average and median values are also reported in Table 2. For data cleaning purposes, we considered only values up to 250 kWh and up to 1800 min, and X axes were truncated for a clearer visualization. Also, data for DC ultra-fast (level 2) (\(p\geq 350\) kW) recharging points was not included, since the dataset is not as complete as the other categories. Figure 8: Consumption from analyzed recharging points (**top**) and average consumption per recharging point (**bottom**) in Trentino–South Tyrol from 2021 to 2023, divided by municipality. Figure 10: Duration [min] distribution from analysed AC (**top**) and DC (**bottom**) recharging points (\(P\) is the power of the recharging point). Figure 9: Consumption [kWh] distribution from analyzed AC (**top**) and DC (**bottom**) recharging points (\(P\) is the power of the recharging point). As expected from the maximum power output, the energy consumption from AC recharging points is lower than the consumption from DC ones, while the duration is higher. Results show that the consumption values from AC recharging points are more concentrated under 15 kWh and under 300 min, while the consumption values from DC recharging points are more distributed. The skewness of the distributions is also confirmed by the larger difference between average and median values from the AC recharging points, if compared to the same values from DC recharging points. In many cases, AC recharging points are more concentrated under 15 kWh and under 300 min, while the consumption values from DC recharging points are more concentrated under 15 kWh and under 300 min. \begin{table}
\begin{tabular}{c r r r r} \hline \hline  & \multicolumn{2}{c}{**Consumption**} & \multicolumn{2}{c}{**Duration**} \\
**Maximum Power Output** & \multicolumn{2}{c}{**[kWh]**} & \multicolumn{2}{c}{**[min]**} \\ \cline{2-5}  & **Average** & **Median** & **Average** & **Median** \\ \hline AC slow, single-phase (\(p<7.4\) kW) & 9.8 & 6.6 & 163 & 106 \\ AC medium, triple-phase (7.4 kW \(\leq p\leq 22\) kW) & 15.6 & 11.1 & 165 & 116 \\ AC fast, triple-phase (22 kW \(<p\leq 45\) kW) & 13.2 & 9.4 & 124 & 88 \\ DC fast (50 kW \(\leq p<150\) kW) & 26.9 & 23.1 & 36 & 31 \\ DC ultra-fast (level 1) (150 kW \(\leq p<350\) kW) & 33.3 & 31.5 & 38 & 34 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Average and median values for the consumption [kWh] and duration [min] for the analyzed recharging points, classified by type of maximum power output. Figure 11: Duration [min] versus energy consumption [kWh] from analyzed AC (**(top)**, using shades of red and orange) and DC (**(bottom)**, using shades of green) recharging points (\(P\) is the power of the recharging point). recharging points are used also for parking purposes, resulting in long sessions with low or high energy consumption. However, more information would be required to better understand the distributions since both consumption and duration values are affected by many factors, such as the initial state of charge from the EV, the reached power output due to simultaneous recharges, the difference of battery sizes that influences both the duration and consumption, and even the different preferences of users, in terms of charging up to 80% for battery longevity versus a full recharge of the vehicle for longer energy availability, among others.