Remaining Capacity (MW) 15 3 10 3 13 2 1 0 5 7 11 810 6 4 5 15 20 19 21 25 30 16 12 9 38 14 17 18 22 0 24 23 32 2 36 34 28 26 31 33 4 3537 27 29 15 13 1 0 78 11 10 5 6 9 20 19 30 25 21 12 14 16 26 18 -5 20 40 60 Residential Customers (%) (a) 80 0 36 35 33 34 37 31 24 17 0 28 27 29 23 22 38 32 20 40 60 Residential Customers (%) (b) 80 Figure 8. The remaining capacity in megawatts for 39 feeders. (a) The feeders before adding the EV demand (blue) and (b) the same feeders after adding one EV per household (orange). Highest Line Loading (%) 160 140 24 18 14 22 17 120 100 18 14 22 24 80 60 4 1 0 2 40 9 5 67 8 10 11 12 13 16 15 20 19 21 9 28 30 23 17 33 4 3436 27 31 26 29 25 32 1 0 37 35 38 0 20 40 60 Residential Customers (%) (a) 80 2 21 12 6 5 7 10 11 8 13 16 19 20 15 29 3 3 20 31 33 37 28 34 26 30 27 36 32 35 25 38 23 0 20 40 60 Residential Customers (%) (b) 80 Figure 9. The highest line loading in the percentage of the maximum line capacity for 39 feeders. (a) The feeders before adding the EV demand (blue) and (b) the same feeders after adding one EV per household (orange). Lowest Voltage (p.u.) 1.04 3 1.02 5 8 0 1 1 0.98 7 4 1213 910 6 11 19 21 20 14 15 2 16 17 18 24 22 23 7 19 13 34 3537 29 27 30 3 38 25 26 31 5 0 1 32 33 4 8 6 12 910 11 14 16 36 0.96 15 17 28 0.94 38 25 26 29 31 18 2 21 20 22 32 33 24 23 2730 34 35 37 36 0.92 28 0.9 0 20 40 60 Residential Customers (%) (a) 80 0 20 40 60 Residential Customers (%) (b) 80 Figure 10. Graphs showing the lowest nodal voltage per unit (p.u.) of the feeder head voltage for 39 feeders. (a) Feeders before adding the EV demand (blue). (b) The same feeders after adding one EV per household (orange). 54 I E E E E l e c t r i f i cati o n M agaz ine / J UN E 2019