In message , at
16:39:46 on Fri, 22 Jan 2021, Robin remarked:
On 22/01/2021 16:11, Dave Plowman (News) wrote:
In article ,
Robin wrote:
On 22/01/2021 10:58, Dave Plowman (News) wrote:
In article ,
Robin wrote:
On 21/01/2021 15:18, Dave Plowman (News) wrote:
In article ,
Robin wrote:
I would guess a 2kW limit only applies to a tiny number of
rural houses.
Where a tractor is a more suitable method of transport.


No one has mentioned as a "2kw limit". It is a figure that DNOs assume
as the /average/ demand per household when planning a network. Around
2kw is what was used for vast numbers of dwellings - including urban
estates. With good justification based on empirical evidence.

The effect on that "after diversity maximum demand" of EVs and heat
pumps is what has the National Grid, DNOs et al looking at massive
investment plus better demand management.

I'm well aware about diversity. Which can apply to charging EVs too.


then please explain /how/ substantial numbers of EVs can be charged at
home in addition to existing use without increasing the ADMD

Please read the part of the tread I was replying to.


I have done. So I can remind you that /you/ posted:

"I really can't see the problem of providing on street chargers for
every single parking bay on the street."

"I would guess a 2kW limit only applies to a tiny number of rural
houses."

That's all at odds with the vast body of work by Ofgem, National
Grid,
DNOs et al on ADMDs now and the effect on them of large numbers of EVs
charged at home. But if you won't share what you know that they don't
then we'll just have to make our own guess as to why.
Can you really not see that applies regardless of where domestic
chargers
are situated? Is it so difficult to visualise?


And where did I say it didn't[1]? But that's a different issue -
orthogonal to your claims about the ease with which charging points
could be provided and the rarity of ADMDs of 2kw or less.

[1] assuming of course the usual but not universal sharing of local
distribution cables by street lights and homes.

Street lights in residential areas (rather then trunk roads) are [only]
around 50watts each, and tend to be wired up on local daisy-chain cables
a bit like household ring mains. They are down in the noise level
compared to EV chargers (or even the infamous 2kW per household).
--
Roland Perry