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How this is measured, and what it does not cover

Data as at 21 August 2026. Once published, a quarter’s recognitions are final and are not restated.

1. These recognitions are derived from installation data reported to SunWiz by its data partners in each market, together with registry data where available. SunWiz has measured the solar market since 2009. Recognition is determined from that data alone, independent of whether a company chooses to participate, and cannot be influenced by payment.
2. Reporting timing varies between data partners and can lag installation by up to three months. The most recent quarter may therefore under-represent brands whose partners report later in the cycle. Where a brand’s position is materially affected by reporting timing, SunWiz will say so on the page rather than adjust the figures after publication.
3. Coverage varies by market. Each market page states what its data includes and excludes. Figures are not a census of every installation and should not be read as one.
4. Once published, a quarter’s recognitions are final. If subsequent data revises the underlying figures, the revision is reflected in later quarters and the published quarter is not restated. This is deliberate: badge holders need a claim that stays true.
5. These pages report measured market activity. They are not an assessment of product quality, safety, warranty performance or suitability, and are not advice on which product to buy.