AdvertisementEnvironmentClimate changeRenewables Australia leads the world in rooftop solar, but only on certain roofs. Australia has more household rooftop solar panels than any other nation. But even leading opponents of renewables, like One Nation’s Barnaby Joyce, have voiced support for rooftop solar. “ACF has long championed the expansion of federal schemes to better unlock rooftop solar for commercial premises. Rooftop solar is a win-win – it’s good for nature, and good for people.”