John Bird, Brunswick, Vic

SENATOR Kim Carr’s opinion of fully electric vehicles (Back in the Carr game, August), as he begrudgingly refers to them, is like a scalded child, and his knowledge of other ‘new technologies’ such as hydrogen fuel cell vehicles is either naive or misinformed.

Citing the collapse of one slightly dubious charging and battery swap business as an indicator that EVs were overhyped ignores the successful charging infrastructure established in this country.

As chargers need cars, an incentive or inducement to buy more expensive EVs would go some way to aiding further the establishment of this infrastructure. Australia has no such incentives, as exist in other markets around the world.

Regarding hydrogen, Senator Carr says he would like to see Australia trade on its very substantial reserves. Hydrogen is the most abundant element in the universe, but it is locked up in natural gas, coal or water, among other things. Releasing it means plundering those reserves and, for gas and coal at least, that means substantial releases of CO2 – a bit like some other fossil fuels on which we are currently obliged to run our cars.