Hello, DC,
You like electric cars-- I do too.
Yes, you did miss something. I went back to the source of the calculation of $0.25 per kWh of gasoline. That calculation had included an ICE efficiency of 33%. I think you can back that out and then complete your calculation as you did and you will have a good result, based on 2007 energy prices.
So, the cost per kWh of gasoline that you should have used is--
$0.25 x 0.33 = $0.0825.
Okay, finish the calculation. (I got a factor of 2.14, favoring the EV, based on 2007 prices.)
Ernie Rogers
Quote:
Originally Posted by dcb
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Based on data from 2007 analysis I came up with $0.09 /kWh for electricity and ~$0.25/kwh for gasoline consumer (at the pump/wall) costs. So that gasoline is 2.8 times more expensive for the same amount of energy at the wall/pump.
Then you have to factor in the reduced efficiency of the ice, so you will only go 3/7s as many miles with that gasoline, that cost 2.8 times as much as the same amount of energy in electricity (again, consumer cost at the pump/wall).
So really, just in terms of consumer costs per mile at the wall/pump, we are looking at gasoline being 6.5 times more expensive than electricity mile for mile in 2007.
Am I missing something significant here? |