Miroslav Variny received his MSc and PhD in Chemical Engineering at the Slovak University of Technology (STU) in Bratislava, Slovakia, in 2007 and 2011 respectively and was awarded the Aurel Stodola prize from ENEL Slovakia for the best defended PhD. thesis in the field of energy technologies that year. Currently a researcher at the Institute of Chemical and Environmental Engineering of STU, he applies his experiences from previously-conducted energy-saving projects and energy audits for industrial companies, especially in the refining, petrochemical, and pulp and paper production sector. His research focuses on cogeneration and polygeneration, energy audits, renewable energy sources, energy-saving technologies, energy efficiency, and environmental impact of industrial plants. He serves as reviewer for MDPI journals (Processes, Energies, Applied Sciences) and Elsevier journals (Energy, Applied Thermal Engineering, Journal of Cleaner Production). He has been a member of the board of the Slovak Society of Chemical Engineering since 2016.