{"schemaVersion":"grid-decision-export-v1","serving":"live-ledger","snapshot":{"kind":"grid-decision-brief-v2","title":"South West Interconnected System: Annual production carbon intensity","createdAt":"2026-08-01T10:56:55.525Z","decision":"monitor","technology":"electricity-system","period":"30d","periodLabel":"Rolling 30 days","answer":"South West Interconnected System does not yet have a publishable annual-production-carbon-intensity value for the selected period.","primaryMarket":{"code":"SWIS","label":"South West Interconnected System"},"comparisonMarket":null,"metric":{"key":"annual-production-carbon-intensity","label":"Annual production carbon intensity","unit":"gCO2/kWh","comparisonBasis":"National annual production-based electricity carbon intensity, 2025","evidenceKind":"context"},"primary":{"value":null,"priorValue":null,"changePct":null},"comparison":null,"limitations":["Metric key, unit and comparison basis must all match.","National annual context remains labelled as context and is not relabelled as regional real-time data.","Australia national context only; it is not South West Interconnected System real-time operating data."],"sourceTrail":[{"marketCode":"SWIS","sourceLabel":"Our World in Data Energy Dataset","sourceVersion":"OWID Energy Dataset 2025 annual series","dataConfidence":"High","evidenceUrl":"https://ourworldindata.org/energy-data","evidenceKind":"context"}],"methodologyUrl":"/methodology","dataStatusUrl":"/data-status"}}