IEA, Transport sector energy intensity in the Sustainable Development Scenario, 2000-2030, IEA, Paris https://www.iea.org/data-and-statistics/charts/transport-sector-energy-intensity-in-the-sustainable-development-scenario-2000-2030
boe = barrel of oil-equivalent. Global transport sector energy intensity is measured as transport final energy consumption per unit of gross global product. National transport sector energy intensity is measured in the same way, but per unit of gross domestic product.
Solar generation absorption with limited flexibility, projections for 2030