{"schemaVersion":"report-figure-v1","report":{"slug":"why-grid-carbon-numbers-disagree-2026","title":"Why Grid Carbon Numbers Disagree","url":"https://solaranalytica.com/why-grid-carbon-numbers-disagree-2026","datePublished":"2026-08-05","lastReviewed":"2026-08-01"},"figure":{"id":"selected-ipcc-lifecycle-factors","title":"Selected IPCC lifecycle emission factors","unit":"gCO2e/kWh","provenance":{"dataSource":"IPCC AR5 Annex III","dataType":"Lifecycle median factor","scope":"Selected electricity technologies","statistic":"Median lifecycle emissions","interval":"Published assessment factor set"},"caption":"Selected IPCC lifecycle median factors used by the grid-source layer. These are technology factors, not a live grid-intensity reading.","series":[{"label":"Coal","value":820},{"label":"Gas","value":490},{"label":"Biomass","value":230},{"label":"Utility solar","value":48},{"label":"Rooftop solar","value":41},{"label":"Hydro","value":24},{"label":"Nuclear","value":12},{"label":"Onshore wind","value":11}]},"csv":"https://solaranalytica.com/reports/why-grid-carbon-numbers-disagree-2026/figures/selected-ipcc-lifecycle-factors/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."}