The latest monthly update from market analyst SunWiz shows 339.2 MW of new rooftop solar capacity (under 100 kW) was registered across Australia in July 2026, up 6% on the 322 MW that was installed during the previous month.
The monthly tally is 22% below the record 432 MW registered in April 2026 but SunWiz managing director Warwick Johnston said the market is still tracking well above the long-run trend of ~285 MW.
“July 2026 remains above the same month in 2023–2025, holding its lead even as levels have eased back from April’s peak,” he said.
Johnston also highlighted that the January–July tally is the highest on record, with about 2.383 GW of new rooftop solar installed across the country in the first seven months of the year, about 43% ahead of the same point in 2025.
“2026 continues to be a record year for PV,” he said. “Despite the slowdown from April, monthly volumes remain at record levels. The PV market continues to be heavily influenced by the Cheaper Home Battery Program.”
Johnston said the influence of the battery rebate scheme is evidenced by the success of the 10–15 kW rooftop solar segment that remains “the clear backbone of the market,” providing 122.6 MW, about 36%, of the July total, followed by the 6–8 kW band at 60 MW and 15–20 kW at 45.3 MW.
“Though volumes of 10-15 kW PV systems have dropped from their peak, that segment has stabilised at highly elevated volumes,” Johnston said.
The 75–100 kW segment posted the standout gain for the month, up 30% month-on-month to 13.4 MW, while the 30–50 kW (+11%), 15–20 kW (+10%) and 20–30 kW (+8%) segments all strengthened.
The national average system size edged up to 10.06 kW in July, a slight rise from June’s 12-month low of 10.01 kW but well below April’s peak of 11.30 kW and December’s high of 11.47 kW.
SunWiz said there was broad growth across all jurisdictions with the Northern Territory leading the way with a 20% lift on the previous month, followed by Victoria and Western Australia which both delivered 11% gains. The Australian Capital Territory was the only jurisdiction to pull back, down 9%, while Tasmania eased slightly (−2%).
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