IEA (2022), Penetration of solar thermal technologies under current trends with respect to the Net Zero Scenario deployment target to 2030, IEA, Paris https://www.iea.org/data-and-statistics/charts/penetration-of-solar-thermal-technologies-under-current-trends-with-respect-to-the-net-zero-scenario-deployment-target-to-2030, Licence: CC BY 4.0