Mazen Khalil Afif Alnabulsi earned a BS degree in electrical power engineering from Donetsk University (Ukraine) in 1984 and joined the National Electric Power Co. in 1987. Initially, he worked as an operations engineer in the National Control Center before moving into planning in 2004. He was appointed cooperate planning section head in 2005. Since 2007, Alnabulsi has served as operations section head at the National Control Center. His responsibilities include review panel membership for the transmission grid code, transmission system losses and transmission system expansion planning.