Dr Michalis Gr. Vrachopoulos is Professor at the Department of Agriculture Development, Agri-Food and Natural Resources Management of National and Kapodistrian University of Athens. He has a PhD from National Technical University of Athens and long experience in Mechanical Engineering projects specialized in buildings’ thermal behavior and the design of energy installations for buildings and industry including renewable energy projects (solar and geothermal).

He is Director of the research laboratory Energy and Environmental Research Laboratory (E2ReLab) of National and Kapodistrian University of Athens (NKUA). He has published many papers in international journals and conferences and he is author of six books in heating, cooling, air conditioning and renewable energy issues (one under editing). He has numerous citations on his scientific work. He is a member of the Technical Chamber of Greece, ASHRAE, and other scientific and professional bodies. It is worthwhile mentioning his experience in the organization and management of research projects, since he had main research role or/and he was Scientific responsible in research projects funded by General Secretariat for Research and Technology (COOPERATION, RESEARCH CREATE INNOVATE) and European Commission (HORIZON, INTERREG, etc.) as well. Among them is project TESSe2b: Thermal Energy Storage Systems for Energy Efficient Buildings. An integrated solution for residential building energy storage by solar and geothermal resources, Horizon 2020 project, GA 680555 which has been described as one of the successful projects of the European Commission's previous Horizon programming period that can be exploited to achieve Green Deal targets.