The article highlights the importance of solar PV in the defossilization of energy systems to limit global warming, with studies predicting a combined share of solar PV and wind power in electricity generation between 80% and 99% by 2050. The potential of combining solar PV technologies with sector coupling to achieve high solar PV shares in the energy system is emphasized, with projections that solar PV could supply roughly 61% of the world's electricity by 2050. Research also shows that solar PV could potentially supply 60-80% of global energy demand by mid-century, with a focus on detailed technical feasibility analyses and the integration of power-to-X routes and flexibility options. Solar energy is seen as a key component in establishing a sustainable civilization and the rise of the Solar Age, with research at LUT University covering various sectors such as power, heat, transport, industry, desalination, and carbon dioxide removal options.