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Old 10-26-2012, 08:09 PM   #24
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Originally Posted by DanHoll View Post
For payback you have to do your own math based on mileage driven, your cost of Electricity and your cost of gas and your mpg on your ICE car.

Here's how I would figure mine

Miles driven / year = 12000

the EV gets about 4 mile per kWh so kWh = 12000/4 = 3000kWhr

Where I live Electricity costs about $0.11 per kWhr so
Fuel Cost for EV is 3000 x .11 = $330 per year

I have a 2012 Focus ICE that gets about 30 mpg doing the same kind of driving

so 12000 / 30 = 400 gallons of gas

at 4.00 per gallon gase cost would be $1600 per year

so fuel savings with EV is 1600 -330 = $1270 per year.

The EV has about every bell and whistle known to Ford so you really need to compare to a titanium at about $26000

My EV dealer price was a little over $37000 with the federal tax credit (7500) cost is $30,000, 4000 more than the ICE version

So based on fuel alone the payback would 4000/1270 = 3.2 years and that is without taking into account maintenance savings i.e. no oil change, brakes last forever, many fewer moving parts to wear out etc.

Not factored into the above is the pure fun of driving the car
Thank you for that analysis, that's actually very helpful. I don't drive every day, in fact I only do about 500 miles per month, so I spend about $65 or less on gas per month. In addition, I bought only an SE for just under $17,000. So, it looks like I would have to make back some $13,000. Just on gas savings that would take 200 months or almost twenty years. I don't know how much electricity costs per kw/hr (I know my bill is around $100/mo), so I can't make a calculation there. It's good to save on oil changes, but I imagine any future repairs to of the electric drivetrain probably won't be cheap.

Thus, it appears that in my case the FFE is not justified, which is surprising because I was thinking it would be due to my limited and mostly short-range driving.
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