{"schemaVersion":"report-figure-v1","report":{"slug":"nem-rooftop-solar-value-factor-2019-2025","title":"Rooftop Solar's Wholesale Value Fell Further Than the Solar Farms'","url":"https://solaranalytica.com/nem-rooftop-solar-value-factor-2019-2025","datePublished":"2026-10-06","lastReviewed":"2026-09-27"},"figure":{"id":"nem-solar-value-factor-rooftop-vs-utility-by-year","title":"Utility-scale against rooftop solar value factor by NEM region, every year 2019 to 2025","unit":"ratio","valueLabel":"2019","metricLabels":{"y2020":"2020","y2021":"2021","y2022":"2022","y2023":"2023","y2024":"2024","y2025":"2025"},"caption":"Value factor of utility-scale solar (AEMO unit data) and of rooftop solar (AEMO's measurement-based estimate), same prices and same time-weighted average, every calendar year, on one shared scale. Computed by Solar Analytica from AEMO MMSDM data.","provenance":{"dataSource":"AEMO MMSDM DISPATCH_UNIT_SCADA, ROOFTOP_PV_ACTUAL (measurement estimate) and DISPATCHPRICE","dataType":"Computed index","scope":"NEM, NSW, Qld, SA, Vic, calendar years"},"series":[{"label":"NSW, Utility-scale solar","value":0.927,"y2020":1.086,"y2021":0.606,"y2022":0.61,"y2023":0.568,"y2024":0.55,"y2025":0.43},{"label":"NSW, Rooftop solar","value":0.914,"y2020":1.06,"y2021":0.571,"y2022":0.561,"y2023":0.477,"y2024":0.435,"y2025":0.311},{"label":"Qld, Utility-scale solar","value":0.782,"y2020":0.799,"y2021":0.566,"y2022":0.518,"y2023":0.364,"y2024":0.363,"y2025":0.281},{"label":"Qld, Rooftop solar","value":0.782,"y2020":0.709,"y2021":0.421,"y2022":0.447,"y2023":0.237,"y2024":0.225,"y2025":0.138},{"label":"SA, Utility-scale solar","value":0.996,"y2020":0.749,"y2021":0.426,"y2022":0.496,"y2023":0.366,"y2024":0.435,"y2025":0.531},{"label":"SA, Rooftop solar","value":0.865,"y2020":0.59,"y2021":0.074,"y2022":0.323,"y2023":-0.003,"y2024":0.045,"y2025":0.022},{"label":"Vic, Utility-scale solar","value":1.064,"y2020":0.887,"y2021":0.434,"y2022":0.572,"y2023":0.37,"y2024":0.372,"y2025":0.338},{"label":"Vic, Rooftop solar","value":0.977,"y2020":0.84,"y2021":0.302,"y2022":0.369,"y2023":-0.102,"y2024":0.124,"y2025":0.136}]},"csv":"https://solaranalytica.com/reports/nem-rooftop-solar-value-factor-2019-2025/figures/nem-solar-value-factor-rooftop-vs-utility-by-year/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."}