Dr. David Borge-Diez has a Ph.D. in Energy Engineering and master's degrees in Industrial Technology Research and is an industrial engineer and bachelor in industrial engineering. His work in teaching and as a researcher is focused on the field of energy, with special emphasis on the use of unconventional energy sources and energy efficiency. For more than 8 years, he has worked in different private companies nationally and internationally developing research projects and engineering work, whilst he has made this activity compatible with teaching and research in different universities and organizations. Dr. Rosales-Asensio (Ph.

D.) is an industrial engineer with postgraduate degrees in electrical engineering, business administration, and quality, health, safety, and environment management systems. Currently, he is an associate professor at the University of Las Palmas de Gran Canaria. He has also worked as a plant engineer for a company that focuses on the design, development, and manufacture of waste-heat-recovery technology for large reciprocating engines and as a project manager in a world-leading research centre.