Based on REAL numbers, an EV gets almost 4 miles per kwhr.
$0.55 รท 3.8 x 60 = $8.70. Less than half the number you presented.
My Model 3 LR gets 180 wh or less most times in suburban use that’s less than 250 which would be 4 per mile.
In absolute gridlock inch inch inch traffic I have seen as low as 90 wh per mile with just the vent fans running in mild times of the year , in August in Texas with DFW inch inch traffic 150 is right most if that is AC load as an as EV uses zero energy to just sit still in traffic other than keeping the computers on and maybe a fan for the BMS system. My S60 used 0.6 gallons per hour just idling more with the A.C.on. That is directly from the OBDII read out on a per second basis from a professional grade OBDII reader.
0.6 gallon at 124,000 BTU per gallon is 74,400 BTU or 21.8 kWh just sitting there idling. The Tesla would use 600 watts to keep the computers on and between 1000 and 2000 watts per hour to blow A.C. On me the driver. There is no mathematical comparison regardless of what the unwashed masses say the actual data is clear.