VIJAY VITTAL, Ph D, is an Ira A. Fulton Chair Professor at the School of Electrical, Computer and Energy Engineering at Arizona State University. He is a Fellow of IEEE and a member of the U.S. National Academy of Engineering and has more than 35 years experience in teaching and research related to power system dynamics and control. JAMES D. MCCALLEY, Ph D, is an Anson Marston Distinguished Professor at Iowa State University. Dr. Mc Calley, a Fellow of the IEEE, was an industry engineer from 1985-1990 performing dynamic analysis of the Western US Interconnection. He has been on the faculty at Iowa State University since 1992 performing research and instruction in power system planning and dynamic analysis. PAUL M. ANDERSON, Ph D, served as a professor of engineering at Iowa State University, Arizona State University, and as a visiting professor at Washington State University. Dr. Anderson passed away in 2011. A. A. FOUAD was Anson Marston Distinguished Professor Emeritus of Engineering at Iowa State University. He had more than 40 years experience in power system dynamics in teaching, research, and in industry. Dr. Fouad passed away in 2017.