Australia registered 304.8 MW of new rooftop solar capacity in October 2026, up 1.07%, or 3.2 MW, on September, according to market analyst SunWiz’s latest monthly update. It was the second consecutive monthly gain after an 11.5% August dip to 285 MW and the strongest October of the past four years, about 16% above October 2025’s 262 MW.
Victoria posted the largest monthly gain at 10.8%, followed by Western Australia at 5.3% and New South Wales at 4.5%, while every other state fell, led by the Northern Territory at minus 17.1%. For the month overall, NSW led with 89.9 MW installed, ahead of Queensland on 75.8 MW and Victoria on 60.2 MW.
The January-October tally of 3,138 MW is the highest on record, running 41% ahead of the same point in 2025, SunWiz managing director Warwick Johnston said. He noted commercial volumes moving in opposite directions as the market waits to register 1 MW small-scale technology certificates: NSW, Victoria and WA grew while all other states declined in commercial volumes above 50 kW.
The 10-15 kW band remains the market’s backbone at 115.8 MW, more than double the 6-8 kW band. The national average system size rose to 10.05 kW from 9.88 kW, back above 10 kW for the first time since April.
✦ This article was adapted by AI from public news sources for informational purposes only. It does not constitute investment advice.
