I took a long hard look at Kia, Chev and Nissan's entry level Ev vs gas option. There was no possible way I could get any scenario to make the EV more economically viable than it's gas sister. Fuel savings of $30% can't close the gap on financing costs.
So, as was mentioned, I don't know where you got a lot of those numbers from, but they are fantastically wrong. I'm hoping it's just an honest mistake based on a misunderstanding of EV's, not a deliberate attempt to smear them, but lets set some things straight.
The closest comparison I could get was a Chev Volt vs Chev Cruze. Similarly equipped, the VOLT is about 2x out the door and about 1/3 more efficient. So, here's how the comparison went on a 5 year plan, 125K KM:
Cruze Premiere $25,553 MSRP. By the time you add a few options that come standard on the Volt Premiere you're closer to about
$28,000
Volt Premiere after $14,000 rebate =
$32200, well equipped.
So, the difference when comparing apples to apples (lets not compare a base Cruze to a Premiere Volt)
is only a little over $4000.
* 25K KM per year
* gas prices at 1.25/l, elec at 0.20/kwh
* mileage 7.1L/100KM for gas, 29KWH/100KM for electricity
$2220 vs $1430/year
So, things go horribly awry here.
First, electricity isn't $0.020/kwh. Off peak (which is when most EV owners charge) it's $0.065/kwh. Less than a third of what you posted. Even if you insist on charging during on peak hours it's less than $0.20/kwh, so I'm not sure where that number came from. If you're trying to roll in delivery fees and such that's a bit of a misnomer in the end as
you're paying those anyways for your regular home electricity usage so trying to lump all those fees onto the EV figures is a fallacy.
Your average fuel economy for the Cruze seems about right, for the record, looking at fuelly.com
But, your kwh/100KM consumption for the Volt is off the charts wrong and seems to be pulled from either the consumption figures of a Tesla (driven very aggressively at that, not all EV's are equally efficient either - the Porche offerings for example are energy pigs), or is a confusion between Kilometers and Miles, since most stats out there are in US figures.
This article may be of interest for you, or anyone considering an EV actually.
So, an actual more realistic figure is around 17Kw/100KM. In the summer in stop and go or city traffic (which is far MORE effecient on an EV vs a gas car, opposite from the usual) that can easily drop to the sub 15 level, but lets say 16.5kw/100KM as an average.
Doing the calculations again, assuming off peak electricity, you now have a cost of $1.07 for those 100KM's.
So, tallying things up:
Cost per 100KM Chevy Cruze based on $1.25/L gas = $8.87
Cost per 100KM Chevy Volt based on $0.065/kwh = $1.07
Yeah,
about 8 times cheaper.
Over a 25,000KM year as you listed, yearly cost for the Cruze is $2217 in gas. For the Volt, $240 in electricity, for a savings of almost $2000/year.
If you actually do end up driving on the engine a little for an extended trip...the Volt actually gets a better gas fuel economy than the Cruze, as well.
So, inside 2 years of ownership the extra cost of the Volt pays for itself, and then you're laughing.
Own the car for 10 years and you've saved a whopping $16,000 in operational costs vs a gas car...and the Volt will have a higher residual value at the end vs a 10 year old run of the mill Cruze that'll fetch you maybe $1500.
If the price of gas spikes again to the levels we've seen in the past ($1.25/L may be a pipe dream in 3-6 years, who knows) then the numbers only get even more amazing - electricity is comparatively dirt cheap compared to gas, and the best part is that fluctuations are minor and seldom, not like gas that can jump $0.20/L overnight just because someone farted in a refinery in Texas and a piece of machinery had to be shut down for a week.