Australia recorded a total of 656,388kW of solar systems installed in the second quarter of 2025, a 17.32% decrease compared to the same quarter of the previous year. Of the total solar installations, 74% were in the Residential (0-15kW) category, with Sunboost emerging as the top installer in this segment. Small-Commercial (15-40kW) installations accounted for 17% while the remaining 9% were in the Medium-Commercial (40-100kW) category, and were predominantly carried out by Sun Retail and Energy Aware respectively.
Sun Retail took the lead in the total market share, surpassing Sunboost with a volume of 23,244kW, representing 3.54% of the market. Formbay Trading remained the top STC trader.
Queensland saw the highest number of solar panel installations, accounting for 27.7% of the market volume, totaling 181,761kW.
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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 17.32%.
New South Wales
NSW
NSW’s solar installation dropped by almost 31% compared to the same quarter last year.
Queensland
QLD
From QLD alone, 27.7% or a volume of 181,761kW contributed to clean and sustainable energy.
Victoria
VIC
Victoria’s total system installation decreased by 8.45% from the same quarter last year.
Western Australia
WA
9.6% of the total solar installations, equivalent to 63,246kW, have been completed in WA.
Australian Capital Territory
ACT
ACT only completed a few installations this quarter, representing a market share of 1.7%.
Tasmania
TAS
There is a drop of almost 4% in the total installed volume in Tasmania for this quarter compared to Q2 2024.
