Stijn Beernink is a researcher on the Geohydrology team. He works on different geohydrological questions, with a special interest in aquifer thermal energy storage (ATES), high temperature storage (HTO), and the integration of these types of systems in cities or heat networks. His work thus concerns not only the subsurface, but the system as a whole. In 2018, Stijn graduated from Wageningen University with an Earth & Environment MSc. While at university he gained the required experience in (geo)hydrological processes, GIS systems and various programming languages. This background helps Stijn work in various types of projects, connect disciplines and constantly learn new things. In his work he draws on this combined experience to explore sustainable concepts for thermal energy systems and other forms of thermal energy systems from water. Through effective collaboration with colleagues, consultancies, other research organisations and government, Stijn contributes to the energy transition and the sustainable use of the subsurface.