Adnan Al-Mohaisen graduated from King Saud University in Riyadh, Saudi Arabia in 1976 with a bachelorís degree in Electrical Engineering. Upon graduation he was among the first to be hired in the Royal Commission for Jubail & Yanbu. Thereon, he worked in various positions and in 1980 managed to attain, by scholarship, a Masters degree in Electrical Engineering (Power Systems) from the University of Missouri in 1981. During the 29 years that he was with the Royal Commission for Jubail & Yanbu, Adnan held 3 senior positions of Deputy Director General in the Planning & Projects, Community Services and Public Services areas. In late 2004, Adnan was nominated to become General Manager for the GCC Interconnection Authority in which he took the position in January 2005. Adnan also headed and participated in various committees in the Royal Commission and other public organizations. Adnan has also participated in management and career development courses from various reputable universities, such as the University of Chicago and the University of Southern California and the University of New South Wales in Australia.