Australia has the world’s highest uptake of rooftop solar systems, with around 3.4 million installations in use on the roofs of 37 per cent of the nation’s free-standing dwellings. But there is one distinctive group that refuses to join this ‘planet-saving’ party. It is made up of the Green-dominated inner-suburban seats close to our major cities – and the six Teal former blue-ribbon Liberal seats lost to a populist environmental cause at the last federal election.