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Follow up question: quote for connection and local supply issue

Thanks for the fantastic replies I had to my previous question, helping me to understand the supply locally and enabling me to successfully push back on the quote/plan provided. 


I now have one further query.



WPD say that if they were upgrading the local network they would overlay the current 95mm wcon cable with a 185mm wcon cable, but that this alone would not be sufficient to allow for my property to be connected to the local network. Instead, they said that for me to be connected, a 300mm wcon cable needs to be laid, and they want me to fund the difference between the 185 cable and the 300 cable. 


As they were less than scrupulously transparent in their previous quote, I would like to check if anybody has any thoughts on the veracity of this? Why would upgrading to a 185mm cable not allow sufficient capacity to add my supply? Why would they not, if doing an upgrade and presumably incurring significant cost, simply upgrade to future proof the local supply with a 300mm2 cable?


I'm particularly concerned that what they have said about replacing the 95mm2 cable with a 185mm2 cable (that this would not be sufficient to connect me to the supply) is untrue.

Plan of existing supply.pdf
Updated plan for new supply.png
Parents
  • Morgan Phillips:
    Thanks Chris. I didn't realise that I could get a temporary supply for building separately from the final supply for the house.


    My step-daughter (and husband) had one at their self-build. It had to have its own natty, but v. robust, little brick hut, so there was some expense there. Eventually it was enclosed by an outbuilding. They had to pay a few thousand for the move on the basis that the service cable would be cut in the road and a new bit spliced on, but after hubby and I had done the donkey work (i.e. more or less demolished the hut and excavated the cable) it was simply a matter of the DNO transferring the service head onto a board on the nearest convenient bit of wall. IIRC, it took about an hour. I gather that they got a modest rebate.


    I am sure that with a bit of ingenuity you could construct your garage corner as part of a hut if necessary, but the point really is to ask for a quote for a construction site supply and see what happens.


Reply
  • Morgan Phillips:
    Thanks Chris. I didn't realise that I could get a temporary supply for building separately from the final supply for the house.


    My step-daughter (and husband) had one at their self-build. It had to have its own natty, but v. robust, little brick hut, so there was some expense there. Eventually it was enclosed by an outbuilding. They had to pay a few thousand for the move on the basis that the service cable would be cut in the road and a new bit spliced on, but after hubby and I had done the donkey work (i.e. more or less demolished the hut and excavated the cable) it was simply a matter of the DNO transferring the service head onto a board on the nearest convenient bit of wall. IIRC, it took about an hour. I gather that they got a modest rebate.


    I am sure that with a bit of ingenuity you could construct your garage corner as part of a hut if necessary, but the point really is to ask for a quote for a construction site supply and see what happens.


Children
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