Mathias Kimmling is a process and energy engineer. He has been working as graduate research and teaching assistant at the University of Kaiserslautern since October 2015 to obtain a doctorate in civil engineering. His current research topic is Thecla, a thermoelectric cooling partition with active heat storage, designed as a personalized heating and cooling device for indoor environments. He previously graduated B.Eng. and M.Eng. in mechanical and process engineering from the University of Applied Sciences in Saarbrücken, Germany, with focus on energy efficiency and renewable energies. During his study, he managed several sustainability projects, for example solar-thermal and photovoltaic water heating in Bali, Indonesia. This experience motivated him to support and be active in development assistance projects. Mathias Kimmling is living in Saarbrücken, Germany.