Dr Varbanov is the Deputy Head of SPIL – Sustainable Process Integration Laboratory, NETME Centre, FME, Brno University of Technology – VUT Brno, Czech Republic. His main fields of activity are energy saving and efficiency, development and implementation of Process Integration, Total Site and regional integration for energy, water and Circular Economy– including retrofit, waste to energy, wastewater minimisation leading to GHG and water footprints reduction. Petar Varbanov has got PhD in Process Integration from UMIST (now – The University of Manchester, UK) with distinction in 2004, on “Optimisation and Synthesis of Process Utility Systems”, completed in collaboration with Aspentech, Shell Global Solutions, MW Kellog and BP. He has been awarded Dr Habil from the University of Miskolc in February 2020 on the Thesis “Improving the Energy Efficiency and Sustainability of Industrial Sites and Regions”. Dr Varbanov has been twice the Fellow of Marie Curie research grants – an Individual Intra-European Fellowship Grant for 2 y research at Technische Universität Berlin, followed by a grant for going to the University of Pannonia, Hungary, where he served as the Deputy Head of the Centre for Process Integration and Intensification CPI2 until February 2016, when he won the post at SPIL in Brno, Czech Republic. He has been also an Associate Professor at the Centre for Process Systems Engineering & Sustainability – Pázmány Péter Catholic University. Dr Varbanov is the Co-Editor-in-Chief of the Elsevier journal “Cleaner Energy Systems”, Subject Editor of the Elsevier journal “Energy – The International Journal”, and the European Editor of the Springer Journal “Clean Technologies and Environmental Policy”. He served as the Managing Guest Editor and Guest Editor of Journal of Cleaner Production, Energy, Applied Thermal Engineering, Computers and Chemical Engineering.