Charlie is a member of the IEEE Power and Energy Society; a member of CIGRE, the International Council on Large Electric Systems; a US representative to the IEA Wind Annex Task 25 on Design and Operation of Power Systems with Large Amounts of Wind Power, and a Fellow of the IEEE. He is a guest editor for the IEEE Power and Energy magazine, and a past editor for the IEEE Transactions on Sustainable Energy. He is a recipient of the IEEE PES Ramakumar Family Renewable Energy Excellence Award, and currently serves as the Technical Advisor to the US National Committee for IEC SC 8A, Grid Integration of Renewable Energy Generation.

He received his BSME and MS degrees from MIT in 1970. He currently is the Principal Consultant with the Energy Systems Integration Group (ESIG). Previously, he served as President of Electrotek Concepts, an international power engineering consulting firm. He has 50 years of experience in the electric power industry.