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Originally Posted by roger1818
It really all depends on the person's use case.
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It does. My point wasn't to get into the details of any specific deployment. Just to say that I think for the typical commuter, I think a regular outlet is pretty decent. The odd supplemental fast charging might be necessary. But it's manageable. And I think that's an important message to get out to potential buyers. If they start thinking that they must have panel and outlet upgrades to get an EV, that could hurt the cause.
Quote:
Originally Posted by roger1818
If it is a status truck, then you are right. If it is a work truck, they may use more power on a daily basis. The key is knowing what you need and getting a charging solution that is sufficient.
The wildcard with the F150 Lightning is its V2H capabilities. To have it power your home, you will need to have a more robust charging solution to allow the truck to feed enough power backwards to run your home in an blackout.
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If it's a work truck, they aren't a commuter. So they most definitely need a much more substantial charging solution. It's not the same use case. Ditto for the use case of a vehicle being used as a backup power system. At that point, it's not just about charging your car.
Quote:
Originally Posted by roger1818
One issue with your math is a standard 15A circuit can only provide a maximum of 12A continually (i.e. for more than 3 hours straight), so a standard Level 1 EVSE maxes out at 1.4 kW. A 20A 120V circuit could provide 16A continuously and thus provide 1.9kW, but 20A outdoor circuits aren't common and neither are 1.9kW EVSEs.
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Fair point. I ran the math again using 2 km/kWh, 180 kWh/wk and 1.3 kW charging. That is 19.78 hrs/day. So that probably wouldn't work without L2 or supplemental fast charging. So I'm going to guess the math for using a regular outlet only works on smaller vehicles (getting > 3 km/kWh) and less mileage per week, so that usage is down to 90 kWh/wk (10 hrs plugged in per day average).
Quote:
Originally Posted by roger1818
Optimally you should have a dedicated circuit where you regularly charge your vehicle to ensure nothing else is plugged in while you are charging (I have tripped a breaker once by charging on the same circuit as 3 incandescent bulbs and once when on the same circuit as a vacuum cleaner), and if you are going to that trouble, you might as well put in a 240V circuit (even if it is only 15A) if at all possible.
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Fair point. I'm just wondering if somebody is a light driver, couldn't they just setup to charge at night, when they won't be running lights and the vacuum? In theory, something like 11pm-6am would yield 9 kWh. Should be enough for a 27 km roundtrip commute. Statistically, that should actually cover a ton of commuters.
Quote:
Originally Posted by roger1818
For sure. Given that the median car life expectancy in Ottawa is probably somewhere around 10 to 12 years, unless something happens to encourage people to retire their ICEVs early, it probably won't be until about 2045 that the vast majority of cars one the road are fully electric.
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It'll be interesting to see. It's such a dynamic situation. On one hand EVs are getting cheaper. On the other hand, the ever rising carbon tax is making gas more expensive. The $170/tonne rate in 2030 pretty much guarantees that even a litre of regular will be ~$1.8/L in 2030, absent some large collapse in oil prices. Meanwhile if BNEF is right and batteries are down to $58/kWh in 2030, EV will be as our more profitable for the OEMs than gas cars later this decade. At that point, I don't know why automakers wouldn't push EVs themselves.
I'm curious to see how much we keep raising the carbon tax beyond 2030, and if the rising rates drive an Osborne effect later this decade, where car buyers simply put off buying a new car until an EV they like and can afford, is in reach. Certainly the awareness of rising fuel costs should drive the behaviour. In theory the rising fuel prices and cheaper EVs should see the majority of the cars on the road flipped much earlier. Closer to 2035, than 2045.