{"schemaVersion":"report-figure-v1","report":{"slug":"nem-bess-capture-index","title":"The TBx Capture Index: Every NEM Battery Against Perfect Foresight","url":"https://solaranalytica.com/nem-bess-capture-index","datePublished":"2026-07-08","lastReviewed":"2026-07-22"},"figure":{"id":"duration-matched-capture","title":"Duration-matched capture per asset, Q1 2026, full-quarter units >= 25 MW","unit":"capture ratio (actual energy-only revenue / duration-matched TBx index)","caption":"The foresight gap, asset by asset: actual energy-only revenue as a share of the duration-matched perfect-foresight TBx index, Q1 2026, selected full-quarter units. One battery beat its index. The median across all 40 full-quarter units is 0.46. Full table below; per-asset dataset public.","series":[{"label":"WDBESS1 (QLD)","value":1.034},{"label":"BRNDBES1 (QLD)","value":0.683},{"label":"BLYTHB1 (SA)","value":0.665},{"label":"MREHA3 (VIC)","value":0.624},{"label":"TEMPB1 (SA)","value":0.596},{"label":"TIB1 (SA)","value":0.544},{"label":"ERB01 (NSW)","value":0.46},{"label":"HPR1 (SA)","value":0.435},{"label":"TB2B1 (SA)","value":0.388},{"label":"TARBESS1 (QLD)","value":0.369},{"label":"VBB1 (VIC)","value":0.233},{"label":"DALNTH1 (SA)","value":0.137}]},"csv":"https://solaranalytica.com/reports/nem-bess-capture-index/figures/duration-matched-capture/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."}