IRENA (2019), Future of Solar Photovoltaic: Deployment, investment, technology, grid integration and socio-economic aspects
(A Global Energy Transformation: paper), International Renewable Energy Agency, Abu Dhabi. Page 17
https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2019/Nov/IRENA_Future_of_Solar_PV_2019.pdf?rev=d2e0fb395422440bbeb74c69bbe2dc99
IEA (2022), World Energy Outlook 2022, IEA, Paris https://www.iea.org/reports/world-energy-outlook-2022, License: CC BY 4.0 (report); CC BY NC SA 4.0 (Annex A)
https://www.irena.org/Energy-Transition/Technology/Solar-energy
IRENA (2019), Future of Solar Photovoltaic: Deployment, investment, technology, grid integration and socio-economic aspects
(A Global Energy Transformation: paper), International Renewable Energy Agency, Abu Dhabi. Page 22