In the first three quarters of 2020, the number of new rooftop photovoltaics in Australia each month exceeded the data of last year. Although the peak of the first wave of the epidemic in April caused a year-on-year decrease of 10.7%, the cumulative rooftop photovoltaics from January to September were close to 2GW.The fourth quarter is the traditional peak season. Under the premise that the epidemic does not worsen again, household use this year is likely to exceed 3GW.According to data from the Australian Clean Energy Regulatory Agency, approximately 29% of Australian households have installed solar power systems on their roofs, compared to 42% in Queensland.