Photovoltaic Energy: Progress and Challenges

This lecture discusses the advancements in photovoltaic technology, aiming to debunk the belief that solar energy cannot significantly contribute to our energy supply. The speaker highlights the impressive progress made in manufacturing solar panels, foreseeing the possibility of producing a kilowatt-hour for a few cents in sunny regions. The lecture also covers research on thin silicon layers and crystalline silicon, achieving devices with over 20% efficiency. Emphasis is placed on ensuring the reliability and longevity of these modules in extreme weather conditions. Furthermore, the lecture explores the collaboration between the academic sector and Swiss industries to commercialize these technologies, showcasing successful examples like Flexcel, a startup producing flexible solar cells on plastic sheets.