1. Global Status Report Renewables, by IRENA’s Renewable Energy Roadmap (REmap) and Policy teams 2020.
2. Renewables 2021Analysis and forecast to 2026, by the Renewable Energy Division in the Directorate of Energy Markets and Security, IEA Publications, International Energy Agency, 2020.
3. https://www.cnet.com/home/energy-and-utilities/smartflower-solar-review-beautiful-solar-sculpture/
4. Dolf Gielen, et al, "The role of renewable energy in the global energy transformation", Elsevier Ltd, Energy Strategy Reviews, 2019.
5. Renewable Energy Outlook: Egypt, International Renewable Energy Agency, Abu Dhabi, IRENA, 2018.