The penetration of Australian rooftop photovoltaics (PV) in the energy market continues to rise and last year contributed 12.95 per cent (approximately 30,500 GWh) of the nation’s total electricity generation. This is an increase from 11.72 per cent (around 26,900 GWh) on the previous year, reflecting the growing role of rooftop PV in Australia’s renewable energy transition. In addition to the latest installation statistics, we take a look at other developments with rooftop solar, including the growing waste problem and the current payback period.