João Castanheira is Deputy Chief Executive Officer at ENGIE Portugal and also CEO at Climaespaço, a subsidiary of ENGIE in charge of building and operating the Lisbon District Heating and Cooling System which includes 21km of district energy network serving numerous tertiary customers but also 4000 residential customers. Vice-President of EFIEES, the European Federation of Intelligent Energy Efficiency Services and a Member of the Board of Directors at COGEN Portugal. With a career of 20 years in the energy sector, Castanheira was previously a member of the Board of Directors at EDP GÁS Distribuição. Castanheira graduated in Mechanical Engineering, specializing in energy, at IST – Instituto Superior Técnico.