Combined with new commercial battery incentives in New South Wales and existing Victorian incentives, the direction is becoming clear. Commercial solar requires greater capitalA household might consider a 6.6 kW, 10 kW, or 15 kW solar system. The biggest commercial solar change: STCs expanding to 1 MWThe headline change arrives on 1 October 2026. Commercial solar and batteries are becoming a package dealSolar solves one part of the commercial energy equation. Commercial solar FAQs What is commercial solar?