Pantelis Capros is Professor of Energy Economics at NTUA. Over 25 years, he is leading research based on large-scale numerical models, which simulate energy markets, project energy investment into the future, optimize roadmaps for climate change mitigation and assess economic and societal impacts. The European Commission, Governments, electricity and gas companies, and their associations, are widely using these models, namely PRIMES and GEM-E3, in their policy analysis, continuously over the last 20 years. Electricity and Gas market design, long-term energy/environment planning and macroeconomic analysis are the main topics of Prof. Capros’s consultancy activities. Mathematical programming, mathematical economics and energy analysis are the scientific disciplines of Prof. Capros’s teaching and publishing activities.