Every time a sparkie walks out of a house, chances are they leave it more energy efficient than when they walked in. But Australia has a shortage of electricians. And we will need 35,000 more sparkies than the 170,000 we already have by 2030, and another 80,000 on top of that by 2050 if we are going to electrify everything. It's a scary prospect but one that Michael Wright, the National Secretary of the Electrical Trades Union is optimistic about.

Find more information about electrification and home energy efficiency https://switchedon.reneweconomy.com.au