 These are rooftop systems in the residential, commercial and industrial sectors.For the purposes of the data, residential grid connect are systems <9.5 kW, commercial are systems between 9.5 and 99.9 kW and industrial are 100 kW to 5 MW.Grid connected-centralised plants was the next largest sector in 2018 with 3,272 MW installed, representing utility scale ground mounted solar with a power rating > 5 MW.