The ISFH CalTeC

ISFH is a research institute of the state of Lower Saxony and a non-profit limited liability company. We are an associated research institute of the "Gottfried Wilhelm Leibniz Universität Hannover" and also cooperate with other universities and universities of applied sciences in Lower Saxony as well as other federal states. The director of ISFH is Prof. Dr.-Ing. habil. Rolf Brendel, who is also a university professor at the Faculty of Mathematics and Physics of the Leibniz Universität Hannover. Professor Brendel is the head of the department Solar Energy at the Institute of Solid State Physics. ISFH has three departments: "Photovoltaics", "Solar Energy Systems", and the calibration and test center "ISFH CalTeC". Our field of work in photovoltaics includes fundamental material research as well as development of processes and tools needed for the fabrication of solar cells and modules. The main focus is the development of novel silicon solar cells and the corresponding module technology to achieve energy conversion efficiencies above 20% on module level. Our superior goal is the reduction of levelized costs of electricity of solar energy conversion. The department "Solar Energy Systems" focuses on the integrated energy supply of decentralized units such as buildings and housing estates with electricity and heat. The goal is to achieve a low-cost and low-carbon supply of energy in high-quality systems. To that end, ISFH is developing, assessing, and optimizing, among other things, solar thermal collectors, new coating processes and storage concepts, and new applications for and combinations of energy systems. ISFH CalTeC (Calibration and Test Center) is offering independent and accredited calibration of silicon solar cells as well as assessment of solar absorber coatings, spectroradiometers, and solar thermal systems as well as components. The institute is a member of the "Renewable Energy Research Association" (ForschungsVerbund Erneuerbare Energien, FVEE), a nationwide cooperation structure of institutes researching and developing technologies for renewable energy.