Residential EV Charging

What type of EV charger do I need?

You will probably have heard the term AC (Alternating Current) and DC (Direct Current). Batteries store electricity as DC, while the electricity that moves through the local electricity network is AC.

Electric Vehicles have on-board inverters, that convert electricity from AC to DC, in order to charge the vehicles battery. These inverters have a maximum power rating, that will vary dependant on the vehicles make and model. As an example, the Nissan Leaf (imported from Japan) has an inverter with a maximum rating of 3.6kW, so a new 7.4kW home EV charger isn’t going to charge the Nissan Leaf any faster than a standard 16 amp 3.8kW caravan-type outlet.

Most other EV’s have on-board inverters rated at 6.5kW’s or higher, which allow them to be charged faster.  As an example, the Tesla Model 3 has an on-board inverter rated at 11kW. 

Should my EV charger provide/support a Type 2 socket?

Yes, the recommendation for home EV chargers in New Zealand is to provide/support a Type 2 socket. This recommendation comes from Waka Kotahi (New Zealand Transport Agency).

Having selected the right EV charger to match your vehicles inverter rating, the other considerations become, what socket types should my charge provide/support, physically where do I locate the charging unit and what impact/loading will it have within the home. These are all things our electricians are familiar with and trained in. They’ll help you to select the right charger, for your vehicle and your home.

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Our Team

Ken Parsons

Director – National Accounts

Darren Bambry

Director – Technical Solutions

Lisa Arrell

National Facilities Management

Need an EV charger for home?

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