Australia recorded a total of 624,273kW of solar systems installed in the third quarter of 2025, a 24.30% decrease compared to the same quarter of the previous year. Of the total solar installations, 72% were in the Residential (0-15kW) category, with Energy Build emerging as the top installer in this segment. Small-Commercial (15-40kW) installations accounted for 21% while the remaining 7% were in the Medium-Commercial (40-100kW) category, and were predominantly carried out by Sunboost and Energy Aware respectively.
Energy Build took the lead in the total market share, surpassing Sunboost with a volume of 12,138kW, representing 1.94% of the market. Formbay Trading remained the top STC trader.
New South Wales saw the highest number of solar panel installations, accounting for 28.6% of the market volume, totaling 178,516kW.
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Quarterly Wrap-up reports
national
national
The total solar panels installed in the country in the second quarter of 2025 decreased by 24.30%.
New South Wales
NSW
NSW’s solar installation dropped by almost 32% compared to the same quarter last year.
Queensland
QLD
From QLD alone, 27.4% or a volume of 171,126kW contributed to clean and sustainable energy.
Victoria
VIC
Victoria’s total system installation decreased by 25.84% from the same quarter last year.
Western Australia
WA
8.9% of the total solar installations, equivalent to 55,764kW, have been completed in WA.
Australian Capital Territory
ACT
ACT only completed a few installations this quarter, representing a market share of 2%.
Tasmania
TAS
There is a drop of almost 1% in the total installed volume in Tasmania for this quarter compared to Q2 2024.
