Javier Menendez received his MSc degree in Mining Engineering in 2005 and his PhD degree from the University of Oviedo, in Spain. He is manager at HUNASER ENERGY, a company dedicated to renewable energy sources. Previously he worked for one year at EDP energy and two years in an underground coal mine in NW Spain. Later, Javier Menendez worked for 11 years as project manager in an engineering company dedicated to energy and mining. His research covers the fields of hydropower, pumped-storage hydropower plants with underground reservoirs, solar photovoltaic power plants, geothermal energy with mine water and forest biomass power plants.

Maria Paula Cardeal Volpi is biotechnologist graduated in 2016 from the Federal University of Sao Carlos, in Araras-São Paulo Brazil, with experience in bioprocesses. During her graduation she undertook scientific initiations with the development of research into fermentations using residues from the sugarcane industry to recover organic acids. In 2016-2018, she received a master's degree in chemical engineering, at the school of chemical engineering at the University of Campinas - UNICAMP.