The interaction of hydrogen with materials has long been an area of interest due to the impact of hydrogen on e.g. the mechanical properties of hydrogen. In recent years, the driving force behind this research has greatly increased as the wish for a carbon neutral industry as well as strategic aspects have put hydrogen-based energy systems back into focus. Here, especially the costefficient generation, transport and storage are critical in order to provide various end-users in mobility (e.g. heavy goods vehicles) and industry (e.g. steel production) with the necessary amounts of hydrogen at a cost that is competitive with other energy carriers. In the short term, existing solutions are to be utilized. Here, materials costs are a significant driver of the overall CAPEX of the installed systems. In this talk, we will cover the requirements of physical hydrogen storage systems and how materials developments can contribute to the decrease in cost. We will then introduce current efforts in understanding crucial materials properties such as mechanical strength, hydrogen permeability and degradation through corrosion in high temperature applications. This is done through both mechanical and functional property testing as well as microscopic imaging of hydrogen using atom probe tomography. Here, a new atom probe with ultra-low hydrogen background is used. We will also introduce the newly established national center for hydrogen mobility in Bavaria (HyTACC, Hydrogen Technology Application and Certification Centre). This centre, established by the federal ministry of transport and the Bavarian ministry of economic affairs will have a strong materials section, with the ability to access hydrogen in any technologically relevant combination of pressure and temperature. This starts from liquid hydrogen and goes up to at least 100 MPa. Mechanical testing will initially be possible at high pressures and low temperatures.