Potential fuel savings with charging at work?

Hi all,

I am considering getting an Audi A3 E-tron for my daily commute in Kansas City. I travel around 100 miles daily. I drive like 15 miles on the highway at 70 mph, 25 miles on single carriageways at around 45 miles, and the rest through smaller streets and residential areas. Currently, I am averaging around 30 mpg for the journey, which costs me about $12 a day in gas ($240 a month). The thing is my workplace just installed chargers in the parking area, so if I charge overnight at home and then again at work, can I manage to drive part of like 50 miles on electric mode and then switch to hybrid mode for the rest? If so, what kind of fuel savings could I expect? Thanks!

25 miles on a single charge in EV mode on an A3 E-tron is overly optimistic from my experience. It seems a lot of people get closer to 16 miles of range on a charge in EV mode. I only charge at home, and my 17 mile commute to the office is on average slightly downhill. I feel I'm lucky to have 3 or 4 miles of range left when I head back home at the end of the day.

Just to make the math easier, let's say you can manage 40 miles in EV mode via charging at home and work (20 miles each way). That would leave 60 miles remaining on gas. $12/day to go 100 miles on your current 30mpg vehicle is a cost of 12 cents/mile. The A3 E-tron is supposed to get ~34mpg in hybrid mode, but say you only get 30mpg on the E-tron in hybrid mode. 60 miles at 12 cents a mile with 30mpg is $7.20, so you would save $4.80/day ($96/mo). Not bad. Obviously, if you get less than 20 EV miles or better than 30mpg, this would vary, but your savings should be close to this.

(FYI, with the amount of combined EV/hybrid driving I do, I'm averaging 54mpg).

PS: I'm not factoring in the cost of you charging at home, so that would offset the savings I described above.

I have been driving an A3 for a while now, and I would say @MitchH's numbers are pretty spot on. I get closer to 15-17 miles in EV mode. 50 miles purely on electro mode is too optimistic.
Nothing to add about the costs. Good luck!