Scottish Power mysterious meter

Eminster

Scot_39 said:

Most standard modern single phase meters, consumer units etc designed for upto peak of 100A single phase iirc = 23 kVA (100A*230V/1000).

(Often at a set temp range - nominally iirc 20C max continuous 100A - which is what looks like part of notation on your personal meter. 

So traditional high domestic electrical loads - things like multiple NSH triggering overnight on E7 in winter - wouldn't present a problem.  Its in part a thermal heating constraint for wiring / meter tails etc - but other considerations come into play - terminal sizing, wiring diameters, contact surface areas etc)

But whilst your main isolator switch is rated at 100A - I think the RCD protected lower section - whilst the consumer  unit is itself rated for upto 100A - the actual RCD fitted is rated for 80A - the double width unit above the green sticker. 

Which might now in any case be a limit on any new incoming DNO fuse - if you need one fitted as part of a new connection.

The DNO will I guess have to do all the necessary checks on external wiring - they may in fact have to run completely new street to home connections - depending on who "owns" - and how many share the feed from the "communal feed" at present.  

In the limit - on longer power cable runs - the size of the cables are not only chosen for rated current / power - but are  dependent on the route - enclosed (buried /in closed trunking, free air etc) 

(Why your told to fully unwind an extension reel if using at rated load - they overheat if dont).  

A domestic electrician wont know whats undergorund for the 123m run.

Do you own the shed - do you communally own it as shared freeholders etc. ...

Thanks for the detailed explanation
I don't own the cupboard where is the main meter and there is not any share of Freehold, I don't own the cupboard closer to my own where the supposed submeters are

I understand from your post that I should ask the DNO to come out again to establish if whether or not that meter feeds my house and what else, also checking their map and eventually ask them to run a new cable, correct?

When the DNO came (few times one year ago) always said that meter couldn't be mine but  we do not have that clearly in writing
My electrician (a commercial one because I'm a Premises Manager for work) had the same opinion and he said that definitely I don't have 40kVA in my property

Eminster

I got the notes from the last visit from the DNO, we already requested a visit to Scottish Power but it never happened

We also received some old monthly bills (they were sent to a wrong address and someone dropped on my my doorstep), the monthly average consumption is in around 500Kw, we are 3 bedroom house with only two people living in, working full time and with heaters on main gas, on our previous house we had an average of 240Kw per month  

As discussed, please find below the notes from the jointer visit on 02.10.2023 so you can show this to your energy provider:

this house use to be 3 houses and is fed from an intake room via a
private cable
the main head feeding all this from us i cannot locate on site#
cons advised that this is private and that its not our equipment #
cons advised to get in touch with provider to get a site visit to
request a new meter
or alternatively get a new service from us #

As discussed, the new service from us would be the worst case scenario in which we would need to book a new site visit for.