Dr. Nikolaos Liapis is a Mechanical Engineer NTUA and holds a PhD from the School of Chemical Engineering NTUA in fuel quality. His main areas of expertise are fuels, biofuels and lubricants, tanker management and logistics. He is an Energy and Business consultant in the oil, shipping and industry sectors, specializing in the Green Transition. He has worked for more than 29 years in managerial positions in the Petroleum Sector. For the last 15 years he has worked as COO at ELINOIL, an oil distribution company, and as General Manager at ELIN SHIPPING COMPANY, a subsidiary shipping company that manages small tankers. He has extensive experience in project management, overseeing projects such as the design and construction of biodiesel plant, the construction of fuel depots and the management of tankers. Dr. Liapis is President of the Hellenic Institute of Maritime Technology (HIMT), member of the Board of Directors of the Association of Short Sea Shipowners (HSSA), member of the Downstream Committee of the Institute of Energy for Southeast Europe (IENE) and member of the Hellenic Technical Committees of RINA and Lloyd's Register. He has served as Coordinator of the Energy Products Committee of the Hellenic Association of Petroleum Marketing Companies (SEEPE), while today he is a Consultant to SEEPE. He is a founding member of the Hellenic Association of Biofuel Producers (now SVIVE) and has served as President of the Marine LNG Network, President of the Biofuel Technology Platform and representative of the European Biodiesel Council (EBB) in Greece. He teaches postgraduate courses at the University of Piraeus, the University of Limassol and the Athens College of Economics and Business and has been a lecturer at Metropolitan College. He is teaching, among others, Energy Policies, Decarbonization of Shipping, Maritime Logistics, Port Operations, Maritime Technology and Strategic Management. He has been a speaker at a significant number of conferences on energy, fuels, biofuels and shipping.