Did you work out how much you would spend on Petro ?
I wasn't so much concerned with the cost of the energy nor doing the cost comparison with my ICEV. I was just interested in how much electrical energy it would require relative to our current home consumption. At ~15% it's not that much and well within the capacity of my existing PV systems to support the majority of an Ev's energy demand. That figure could be out by 1/3rd either way and the answer is still the same.
But since you bring up the savings....
For us an equivalent EV to our ICEV loses the $ equation comfortably.
ICEV energy: 900 litres of diesel/year @ $1.70/l = $1530/year
EV energy: 3200 kWh/year @ $0.076/kWh = $243/year
Energy saving: $1287/year or $107/month
Maintenance: Let's call it $800/year less for the EV (it's less than that based on the scheduled servicing but let's go with that)
= $67/month saving
So I'm ahead by $174/month on energy and maintenance.
Insurance is quite a bit more for the EV (I've done the quotes) but let's ignore that. But hey, let's err on the side of being very generous and say I'm $200/month better off due to the lower operating costs of the equivalent EV to my ICEV.
That's great!
However it pales into insignificance compared with extra depreciation on the higher purchase price of the equivalent EV (zero EV incentives here). This
extra depreciation cost is ~$600/month. Ouch.
IOW I'd be $400/month in the toilet.
Depreciation is the single biggest cost of vehicle ownership, at least it is here, hence the much higher purchase price of EVs where I am does not make them particularly attractive options.
The purchase cost differential needs to drop quite a long way. I'd need the equivalent EV to be less than 10% more expensive than the ICEV. At the moment it's close to double the price.