{"schemaVersion":"report-figure-v1","report":{"slug":"wem-solar-value-factor-2019-2025","title":"SWIS Rooftop Solar Was Worth Under an Eighth of the Average Price in 2024","url":"https://solaranalytica.com/wem-solar-value-factor-2019-2025","datePublished":"2026-10-20","lastReviewed":"2026-10-03"},"figure":{"id":"wem-rooftop-value-factor-pre-reform","title":"SWIS rooftop solar value factor before the reform","unit":"ratio (estimated rooftop output-weighted Final Price over its time-weighted average)","caption":"Before the reform. Estimated rooftop output-weighted Final Price divided by the time-weighted average Final Price. AEMO's 30-minute estimate is the only rooftop series before the reform, screened and not corrected. AEMO's series starts in November 2020, so the first full year is 2021. Computed by Solar Analytica from AEMO WEM distributed PV and Balancing Summary data.","provenance":{"dataSource":"AEMO WEM Distributed PV (30-minute) and Balancing Summary Final Price","dataType":"Computed index from AEMO's estimate of rooftop output and published prices","scope":"SWIS rooftop PV, 2021 to 1 October 2023 08:00 AWST, by period"},"series":[{"label":"2021","value":0.611578},{"label":"2022","value":0.683907},{"label":"2023 to 1 Oct","value":0.607886}]},"csv":"https://solaranalytica.com/reports/wem-solar-value-factor-2019-2025/figures/wem-rooftop-value-factor-pre-reform/data.csv","publicationState":"fixed-edition","boundary":"The figure remains bound to the report edition. A newer upstream release creates a review obligation and never rewrites these rows automatically."}