19 January

This very interesting graph compares the cost of driving 100km for petrol and EV, at different prices for electricty. Yellow is one of the EV rates of 6c/kWh now on offer from some retailers. Blue is an average grid rate for electricty at home. Green is the rate at a fast-charger. Look at where the blue line crosses each of the other lines. That tells you the amount you’d need to pay per litre for petrol, to be competitive with an EV. So for the yellow rate, petrol would need to be 12c/litre to compete. For the red, 47c, and for the green, $1.13. Even the most expensive electricity is about half the cost of using petrol.