As we know, the heat received from the Sun and the radiant light emitted from the Sun are represent the Solar energy. So, I think that solar radiation can be used in thermal energy systems or for electricity generation field.
Also, most of the renewable energy sources available on the surface of the earth are due to solar radiation in addition to secondary energy sources, such as wind and wave energy.
Ali H A Al-Waeli, Hussein A Kazem, Miqdam T Chaichan and K Sopian, “Photovoltaic/Thermal System: Principles, Design and Applications”, 1st Edition, Springer Nature 2020, ISBN: 978-3-030-27824-3.
We are discussing about creating an international organization of lecturers and researchers for us. I think you would like to be a member or organizer.