This lecture covers the fundamentals of capturing solar energy through photovoltaic and solar thermal technologies, discussing the energy potential of the sun, different methods of capturing solar energy, and the operation of photovoltaic modules. It explores the efficiency and variety of photovoltaic modules, the coupling of photovoltaics to the electricity grid, and the global market trends and price reductions in photovoltaics. Additionally, it delves into the fields of application of photovoltaics, the contribution of solar power to the electricity mix, and examples of photovoltaic integration. By 2040, photovoltaics are expected to significantly contribute to global electricity production, with the potential for solar power to play a substantial role in Switzerland's energy landscape.