Charging electric vehicles
EV Power Tariffs
The most cost-effective way for EV users to charge their vehicle is by charging them at home overnight. Power tariffs are set by your energy retailer, you should check with them about EV charging tariff options.powerswitch.org.nz
Check out Power Switch's website which provides information about retailers and their offerings:
Some retailers offer a 'night rate' which gives lower energy costs between certain hours of the night. If they do, then you could set your EV to only charge during the times at night when power is cheaper.