{"schemaVersion":"report-figure-v1","report":{"slug":"battery-install-compliance-2026","title":"Three in Five: What the Battery Inspection Rate Counts","url":"https://solaranalytica.com/battery-install-compliance-2026","datePublished":"2026-08-13","lastReviewed":"2026-09-15"},"figure":{"id":"state-substandard-slope","title":"Share of inspected battery systems rated substandard, by state, at the 8 June and 30 June 2026 readings","unit":"per cent of inspections finalised to that date","valueLabel":"To 8 June 2026","valueBLabel":"To 30 June 2026","provenance":{"dataSource":"Clean Energy Regulator, battery inspection results report, system inspection findings per state (CSV), read at the 13 August and 15 September 2026 states of the page","dataType":"Observed, cumulative to each reading","scope":"The six jurisdictions with more than 150 inspections at the later reading; the Northern Territory (34) and Tasmania (44) excluded","statistic":"Substandard count divided by inspections, calculated from the published counts"},"caption":"Two cumulative readings per state, not a period rate: each point is the substandard share of every inspection finalised to that date. Every state moved by under two points except the ACT, and the spread across the six narrowed from 39.7 to 35.6 points. Rates calculated from the CER's published per-state counts at each reading.","series":[{"label":"Queensland","value":77.3,"valueB":77.2},{"label":"Western Australia","value":62.9,"valueB":61.2},{"label":"South Australia","value":59.8,"valueB":59.1},{"label":"New South Wales","value":59.1,"valueB":58.9},{"label":"Victoria","value":57.5,"valueB":58},{"label":"ACT","value":37.6,"valueB":41.6}]},"csv":"https://solaranalytica.com/reports/battery-install-compliance-2026/figures/state-substandard-slope/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."}