Nikolaos Sifakis is an Environmental Engineer and Ph.D. candidate in the School of Environmental Engineering of the Technical University of Crete. His scientific work is oriented to the restoration, protection, and management of environmental-related matters and especially in smart energy systems. He is receiving a scholarship from Onassis Foundation for his Ph.D. thesis on nearly Zero Energy Ports. Nikolaos is also a research associate of the Renewable and Sustainable Energy Systems Laboratory and has already been the author of scientific publications in international conferences, book chapters, and peer-reviewed journals. He is already involved in two EU projects, regarding energy cooperatives, sustainable mobility in touristic cities, and big data analysis.