Originally Posted by Hamwich
Originally Posted by Richard Wood
recharging at say a feasible max of 11kW giving 50km/hr needing 10 hours for full charge


I would think it would be a very unusual usage profile indeed that required a car to be commuted 500km every day. Surely if one was out and about for that distance on a daily basis one would stop at a supercharger?

A much more realistic usage pattern would be something like 50km per day for 200 days a year for commuting to work, with something like 150 - 250km at weekends. In those cases a 16A supply would be entirely capable of keeping one's EV topped up to maximum without causing problems with overall electricity usage in the home. The supply to a domestic house is perfectly capable of supporting a constant 70A with a max of 100A.

Even if you did need to charge for 10 hours every night then not needing to drive your car from 10PM to 8AM is hardly a big deal, surely? It's not like you have to stand next to an EV supervising it while it charges like you do with an ICE.

20 years ago we didn't have ubiquitous smartphones, autonomous vehicles, quantum computers, 3D printing or CRISPR gene editing. A couple more decades of development should easily crack the EV charging problem.


A fair comment Tim but the alternative regime is looking through rose tinted spectacles I suspect. What of the users who due to laziness and overconfidence from manufacturers claims just plug their car charger into 13 amp socket overnight. Car battery will be replenished to some degree but will eventually end up deplete.

Remember that in over a hundred years of motoring with IC engines folk still run out of petrol despite fuel station availability.

This subject assumes substantial take up by 2040 with most not having an ICE backup by then. However an optimistic view by BNEF shows only 32% passenger car take up world wide by 2040 as below and in article here with other predictions much less!

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Richard

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