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Maximum Demand / ENA / EV Help!

D4G
Hello all,


This evenings issue relates to an EV charger install.

The supply cut out is labelled 60/80 amp so I called the DNO and asked if this could be uprated to 100 amp.

They have sent me the ENA EV application form which asks for the Maximum Demand including the new equipment.

The problem I have is the existing circuits are:


32A - 7.2 kW shower 

40A - 8.2 kW shower

32A - Ring main

32A - 7.9 kw cooker

6A - lighting

6A - lighting

6A - security


Additional 32A for EV charger


So even with diversity I'm way over 100A, obviously in reality the diversity calculations are not appropriate as the client has never blown the cut out.

The smaller shower is not currently in use although they want to replace it for another one, I have told them this may not be possible.

The EV charger will have load management but I still need to put a figure on the ENA form....


Help appriciated :)
  • 0
    DG4, EVSE work is only a small part of what we do but the majority of EV installations are on the WCS side. I prefer to stay away from all things domestic but often it is unavoidable as the WCS client sometimes also wants a home charge facility and hence the need to process the grant application via EVHS. 

    Both grant schemes forbid upfront charging of the client so if you are doing say 10 in a month, you could be out £3.5K for 90 days. That is something that that the individual sparkie might be put off by but I am well used to public sector work where 90days might be considered quick! It’s not the money that puts me off, it’s the tedious hassle of the required grant documentation on the EVHS side that’s a killer for me.

  • 0
    Ten a month for ninety days = £10.5K before the first payment arrives.


    Even with up to sixty days credit from a wholesaler taken into account that leaves the electrician making a commitment to finance the grant supported EV installs to the tune of £7K-£8K just doing a couple or three installs per week.


    If you stopped for any reason the wholesalers would want their all of their money before the last payment arrived from OLEV.


    I could finance it all, but I’m not feeling the urge to get involved with OLEV, it seems to come under the heading of “buying work”.
  • 0
    Which is why I have heard of electricians racking up substantial credit card bills covering the material costs for EV installations.


    I have seen electricians and others going into wholesalers and paying their overdue accounts with a credit card to get another months grace before they pay for what they had a couple of months prior.
  • 0
    lyledunn:

     it’s the tedious hassle of the required grant documentation on the EVHS side that’s a killer for me.

     


    This is what I am beginning to find out and I guess if something isn't quite to there liking they will knock it back anyway?


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