In message , at 16:09:44 on Fri, 22 Jan
2021, "Dave Plowman (News)" remarked:
In article ,
Roland Perry wrote:
In message , at 11:02:54 on Fri, 22 Jan
2021, "Dave Plowman (News)" remarked:
In article ,
Roland Perry wrote:

Indeed. But that was not the point I was replying to. Which was about how
to charge EVs parked on the street
.
They both use the same backhaul to the substation.

Quite. So makes no difference if charged on a driveway or on the street.

It makes a huge difference because the on-street charging points are
leeching off the 2kW/premises average for the housing.

How come? Either you have driveway charging, or one in the street if no
driveway. Both come from the same cable under the road. And don't mean
more chargers in total in the same street.

That's a new specification (only one charger per house, irrespective of
where installed), but it doesn't help the power budget of the caling
which would quickly be exceeded.

Not very many on-street chargers would melt the cabling.

Note that it's also not possible for too many of the houses to also
suddenly start doubling their average consumption by having an
off-street charger.

Except that most would charge at night when household usage is low - apart
from storage heating.

Even if you had timers installed (early evening when people get home is
a peak period, and also when they tend to plug their cars in) it still
doesn't work, because you'd have one set of kWH-per-household from say
6am to 10pm (14hrs), and then the second [remember, a car doubles the
average consumption] from 10pm to 6am (10hrs), which means the amperage
overnight is about one and a half that of the daytime. So the cable
still melts.

--
Roland Perry