Mateusz Szubel (PhD, Eng.), assistant professor at the AGH University of Science and Technology, Faculty of Energy and Fuels, Krakow, Poland. Professor Szubel is a member of the research group focused on the issues of renewable energy technologies, at the Department of Sustainable Energy Development. He is a research specialist on the conditions for the sustainable energy development. Furthermore, he is involved in the investigation of the possibilities of involving computational fluid dynamics (CFD) in the optimization of renewable energy technologies and increasing the energy efficiency of energy systems. He is focused on numerical modeling of energy storage and biomass thermochemical treatment. For 12 years professor Szubel has been running over 20 academic courses related to the practical aspects of renewable energy technologies’ applications and the use of commercial CFD codes to analyze the elements of these systems. He is author and coauthor of 120 scientific and popular science papers.