Michelle Hallack is a senior economist passionate for sustainable development and energy transition. In the last years she has focused on new clean technologies potential, strategies and development impact. She has more than 15 years of experience in research and international consulting on regulatory economics, energy economics, institutional economics, energy policy, green financing and behavior economics applied to policies Some of the main results of her work have been published in scientific, professional journals, books and blogs. In the last years, Michelle has specially worked in promoting clean hydrogen for energy decarbonization and security of supply, her main focus has been the promotion of institutional framework adequate to the adoption of new technologies and business models. Michelle holds a PhD from the University of Paris Sud XI of Economics, a M.Res from Federal University of Rio de Janeiro, an European Master (EMIN from both Madrid and Paris) and a Diploma in Economics Sciences of the State University of Campinas.