POWER TO THE PEOPLE! IF IT’S AROUND...
WHERE IS ALL the electricity going to come from to charge EVS? Using an EV that has a 40kwh battery, here’s what I’ve calculated, assuming: an average household uses 6000kwh/annum (16.5kwh/day); an average daily commute of 44km; and an average available distance of 240km. Given this, you’ll need to recharge your battery every five days, requiring 2900kwh over a year.
ARENA is predicting that sales will be around 615,000 EVS per annum. By the year 2030 we could have 2,000,000 EVS in Australia with additional energy requirements of 5800gwh (5,800,000,000kwh)! The average household uses peak electricity in the early evening – not a good time to charge the EV!
Charging EVS during off-peak times would help distribute the load. However, this would require an enormous effort by the government to build the infrastructure to generate the required renewable energy.
Chris Groothoff, email Your broader question is valid, Chris, even if the calculation of the likely size of the national EV fleet in 2030 doesn’t stack up, nor the power demand, as a decent proportion of those EVS will be small-battery hybrids. However, part of the off-peak charging solution may lie with Cloud-connected chargers, which automatically start the recharging process (within a prescribed period) when demand is at its lowest. And don’t dismiss the growing take-up of domestic solar with battery storage – Ed
WHERE IS ALL THE ELECTRICITY GOING TO COME FROM TO CHARGE EVS? “