Added power consumption from charging?

At 10 cents per kWh, figure $1 per hour of charging on a 50A circuit. That gives you 29 miles rated range.

TexasEV said:

At 10 cents per kWh, figure $1 per hour of charging on a 50A circuit. That gives you 29 miles rated range.

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Those are rated miles. Depending on your driving style and number of miles, it's probably 0.35 to 0.45 kWh/mi from the wall including charger efficiency of about 90% and vampire, pre-heating, etc losses. (350 Wh/mi to 450 Wh/mi) Multiple those by miles driven per month, year, etc and you will get corresponding kWh per period.

Most of my (nomal commute, non-spirited) driving I average about 300 Watt-hours per mile, maybe a tad over. Add in a little extra for non-locomotion energy usage (lights, climate control, vampire losses) and battery and charging inefficiency; call it 350 Watt-hours pulled from the wall per mile driven.

From there you just have to multiply by the number of miles you drive per month. 1000 miles x 350 Watt-hours per mile = 350,000 Watt-hours = 350 kWh per month. Adjust for your driving habits accordingly.

Here are my numbers from the spreadsheet I keep on my energy usage. My "at wall" energy usage is roughly 20% higher than the Odometer kWh readings. Some observations: My watt usage per mile has gone down over the time I have owned the car; driving in winter uses more engery, even here in California. Hope the information helps. January of 2013 is the first entry