Juan M. Gers obtained his BSc in Electrical Engineering at University of Valle, Colombia, in 1977. In 1981 he finished an MSc at the University of Salford in England and his PhD in 1998 at the University of Strathclyde in Scotland. He has been working as consulting engineer and university lecturer for over 30 years. Dr. Gers is a Chartered Engineer of the IET and Member of the IEEE.Ted Holmes graduated from Queen Mary, University of London in 1950 and joined the CEGB, where he worked for over 35 years. A Fellow of the IEE and a Chartered Engineer, he is co-author of the book Electricity Distribution Network Design. He passed away in July of 2006 after fighting a long illness.