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EV Chargers Remote from house

Gareth Rowley

I'm currently working on a new housing estate and looking at different solutions for providing EV chargers.

There is a small cluster of houses with allocated parking spots off to one side. The client is keen to serve the EV charger at each spot from the respective house. 

The client will managing the land at the rear of the properties so ducting supplies wouldn't be an issue. However I feel a little uncomfortable with this approach and would prefer to provide a landlords feeder pillar and provide billable charging stations. 

Is there any regulatory requirement that would prevent serving the EV chargers from each house? Granted there may be physical issues with cable size and being able to terminate at the consumer unit.

Parents
  • +1

    I see no reason to prohibit feeding the chargers from the houses, and this may be cheaper than paying for another DNO supply.

    Presuming that the chargers will be near each other, I would bond them to each other.

Reply
  • +1

    I see no reason to prohibit feeding the chargers from the houses, and this may be cheaper than paying for another DNO supply.

    Presuming that the chargers will be near each other, I would bond them to each other.

Children
  • 0 in reply to broadgage

    Thanks broadgage.

    I couldn't think of a technical reason why it couldn't be done. With having never done it this way previously, it just feels a bit odd having not done it that way before. 

  • 0 in reply to broadgage
    broadgage said:
    I would bond them to each other.

    BS 7671 requires simultaneously-accessible exposed-conductive-parts to be connected to the same earthing arrangement. Which leads you to providing a TT earthing arrangement at the charging points, because you can't just bond stuff together from different installations (could cause some nutty problems with PME at least).

    If they share the same TT earthing arrangement because they are under the control of different installations owners, this could present a number of difficulties in future.

    Who owns the charging points? Who will own the common TT earthing arrangement, and maintain it? Optionally - could provide separate earth electrode for each charging point ... but then, who owns the bonding connecting two different owner's charging points, and who is responsible for maintaining that?

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