Electric car

[Scorp1]

How big a generator are we talking about to quick charge an EV? The rapid chargers at service stations are what, about 50kW?

You might need a bigger van.

Domestic installations 7kw max. Stipulated in IET Wiring Regs

[ladymuck]

Domestic installations 7kw max. Stipulated in IET Wiring Regs

EDF supply up to 22kW but you need a three-phase supply for that, which I suspect costs a few bob to sort out

https://www.edfenergy.com/electric-cars/home-charger

[Scorp1]

EDF supply up to 22kW but you need a three-phase supply for that, which I suspect costs a few bob to sort out

https://www.edfenergy.com/electric-cars/home-charger

yes three phase is more costly for an underground cable than over head lines. DNO's are very reluctant to have three phase in domestic installations due to the potential difference between single phase appliances. With three phase you need to bring in a neutral as your would have single phase loads. But I think some DNOs are now having to look into it.

[vetran]

EDF supply up to 22kW but you need a three-phase supply for that, which I suspect costs a few bob to sort out

https://www.edfenergy.com/electric-cars/home-charger

7kw will load the grid enough when we all have it.

[DoctorStrangelove]

yes three phase is more costly for an underground cable than over head lines. DNO's are very reluctant to have three phase in domestic installations due to the potential difference between single phase appliances. With three phase you need to bring in a neutral as your would have single phase loads. But I think some DNOs are now having to look into it.

They bring in a neutral anyway.

The distribution transformer secondary is star connected.

<hiatus>

After a mere 45 years, that HNC "Supply & Utilisation" module finally came in handy, like. .

[Scorp1]

They bring in a neutral anyway.

The distribution transformer secondary is star connected.

Yes that is correct.

[DealorNoDeal]

Domestic installations 7kw max. Stipulated in IET Wiring Regs

Would that apply to a diesel generator in the back of a van though?

Something like this 90kW job:
https://www.generators-direct.co.uk/...esel-generator

It's over 1.5 tonnes, so you would need quite a big van.

[ladymuck]

Would that apply to a diesel generator in the back of a van though?

Something like this 90kW job:
https://www.generators-direct.co.uk/...esel-generator

It's over 1.5 tonnes, so you would need quite a big van.

Could you not tow it on a trailer and so not need a bit of ex-Army surplus kit to drive it about?

[DealorNoDeal]

Could you not tow it on a trailer and so not need a bit of ex-Army surplus kit to drive it about?

You could but you night need to disguise it. The extinction rebellion lot might take a dim view of charging EVs with a diesel generator.

[d000hg]

You're missing a trick. You don't need a generator you need a van full of batteries. This can deliver a far, far larger wattage to the limit of the 'pipe' you can supply - proper fast charge. You will need to recharge your own batteries of course but that's just logistics and you can reasonably get several car charges from your van especially if you only charge people enough to get to where they need to go with its own charger.

This is essentially like having Tesla's PowerWall in your house except it's in a van.