MOHAMED E. EL-HAWARY has been Professor since 1981 and Associate Dean of Engineering for twelve years at Dalhousie University (formerly the Technical University of Nova Scotia). He has written more than 250 technical papers, mainly on power system engineering; is the author of three textbooks: Electrical Energy Systems, Principles of Electric Machines with Power Electronic Applications, and Control System Engineering; and is the coauthor of two research monographs on economic operations of power systems. Dr. El-Hawary chaired the IEEE Power Engineering Society System Operations Committee, the Operating Economics Subcommittee, Life-Long Learning Subcommittee, and Awards and Recognitions of the System Operations and Dynamic Performance Committees. He is Associate Editor of Electric Power Components and Systems and the International Journal of Electric Power and Energy Systems. He is past editor-in-chief of IEEE Press and presently serves as Editor of the IEEE Press Power Engineering Series.