View Single Post
  #30   Report Post  
Old July 5th 18, 03:31 PM posted to uk.transport.london
David Walters David Walters is offline
external usenet poster
 
First recorded activity at LondonBanter: Jul 2003
Posts: 309
Default Electric black cabs

On Thu, 5 Jul 2018 15:06:50 +0100, Roland Perry wrote:
In message , at 14:35:10 on
Thu, 5 Jul 2018, David Walters remarked:
On Thu, 5 Jul 2018 13:38:09 +0100, Roland Perry wrote:
In fact "installing chargers" isn't the main problem.


boltar stated "the majority of people in this country ... don't have a
driveway" which is what I was questioning.


Neither garages nor "other off street parking" equate to "driveways".
Houses (and increasing so in new developments) have garages in blocks
some distance away. Again, often due to planning fashion, trying to hide
them away from view. Or older properties with garages at the end of
their garden reached by a narrow lane down the backs of the houses.


I think we should agree to disagree on how difficult this will be. I
know people who have installed EV chargers in places that weren't next to
their home and it was complicated but achievable and they were the first
to do it. I think it will get easier, there will be local installers to
take away the hassle etc.

It's upgrading the local electricity supply infrastructure to be
able to cope with the extra load (even assuming central generating
has the capacity).


I don't really know about that. I've seen some people claim smart chargers
which know how busy the local grid is will save the day. If I had an
EV I'd plug it in almost every time I parked at home but it wouldn't need
anything like a full charge most of the time.


The National Grid has done extensive studies of this and has concluded
there are many homes which have little prospect of supporting EV
charging in the foreseeable future because the local supply is only
sized at about 2kW per property (and most of that will be used up by
existing consumption patterns).

They have predicted that overall generating and supply capacity would be
saturated at about 20% EV penetration, and that's if they spend the next
decade putting some remediation measures in place. And if every possible
smart/off-peak etc tuning is done.


I can't find that study, do you have a link to it? I found
https://www.nationalgrid.com/uk/arti...ams-future-evs
which is more than a little vague.