The Australian Government’s Clean Energy Regulator tracks the number of small solar installations across the country.
'Small' solar may be used interchangeably with rooftop solar.
The CER publishes small-scale renewable energy installation data files, which include small generation units (small-scale solar panel, wind and hydro systems) and kilowatt (kW) capacity by installed postcode.
The data represents all systems that have had certificates validly created against them.