Domestic EV charger

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Forums › Transport (cars, bikes and boats) › Domestic EV charger

Ghoop

22 posts

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#220107 26-Jul-2017 15:37

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1. I am renovating my garage and I want to install an EVSE to provide a degree of "future proofing" my house. I do not have 3phase but have run cable for 40A load. Ideally, I would like a unit able to accept type1 or type2 cable to provide maximum flexibility since I haven't bought an EV yet.

So, can anyone recommend a suitable brand?

2. I have solar panels on my house and I am keen to get an EV to help soak up excess generation. I was thinking of using a small solar panel to close a relay when the sun is out so that the EV charges only when the house panels are active. (Manual override of course)

Any thoughts?

Linuxluver

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#1831873 26-Jul-2017 21:27

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I bought one of these except it was a ROLEC branded product.

Why this one?

It can handle single-phase, 32amp power. It's dumb and cheap.

But the main thing for me was it doesn't have a tethered connector. Instead, it has a Type 2 "Mennekes" socket. This is now the NZ standard for AC charging. Any car can charge from at 7kw using a cable with Type 2 at one end and whatever the car needs on the other. For AC charging that is almost always Type 2 (Renault Zoe or Tesla) or Type 1 (LEAF, i-Miev, Outlander). Both types of cable are readily available.

The only drawback is the 7kw. A car with a 100kWh battery would take 14 hours to top up from almost empty. But that's far better than the campground 16amp which would take 28 hours.

For a car like the Nissan LEAF (with a 6.6kw intenral AC charger - usually a UK model) it means you can charge the car from empty in under 4 hours.

That's why I bought it.

But a Japanese LEAF can only AC charge at 3.3kw, so in that case you'd just get a blue commando socket and an EVSE with a blue commando plug. That can charge a Japanese leaf up from empty in about 7 hours.

(Note: as examples, a Renault Zoe can charge at 22kw AC and a Tesla can charge at 16.5kw AC).

of course DC charging is MUCH faster......but there aren't many people close enough to a transformer (or with enough money) to set themselves up with 50kw DC charging at home. :-)

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