The extension of renewable energies is a central pillar of the energy transformation. For this, Photovoltaics can be of decisive importance. Thus, materials and concepts have to be developed that enable resource-saving in photovoltaics. Since a few years only, researchers have been producing solar cells from Perovskite crystals. The “MesoPin” research project coordinated by Fraunhofer ISE is planning to advance the concept of the Perovskite solar cell further. Besides other solar cell technologies, it could be another energy source for mobile and stationary applications. Different production processes are investigated by the research partners. In the first project year, solar degrees of efficiency of up to 16 % were achieved using laboratory cells.