 Off-grid solar PV was the smallest segment at 284 MW in 2018.Growth accelerated dramatically during 2018 in both rooftop distributed solar and utility-scale solar which became a significant component by the end of the year.By year end 2018, Australia had 1.96 million residential rooftop solar systems and 78,000 commercial and industrial rooftop solar systems, for a total of 2.04 million total rooftop PV systems.