The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg is the largest solar research institute in Europe. Our around 1,400 employees work for a sustainable, economical, safe and socially fair energy supply system based on renewable energies. We contribute to this with our research priorities of energy supply, energy distribution, energy storage and energy use. Through outstanding research results, successful industrial projects, spin-off companies and global cooperation, we shape the sustainable transformation of the energy system.