Leading developer Mirvac is planning communities in Brisbane and Sydney where new homes aimed at first and new home buyers will have built-in solar-plus-battery systems that are expected to reduce household energy costs by as much as 90 per cent. CEFC is committing up to AU$90 million in debt finance as part of Mirvac’s broader financing of the masterplanned communities.Homes in the Mirvac developments will each come with a ready-to-operate 5.1kW rooftop solar system, alongside a 10kWh battery system. The three to four-bedroom homes will also incorporate high-grade insulation, LED lighting and energy efficient appliances.