Zia Emin holds B.Sc., M.Sc., and Ph.D. degrees, all in electrical engineering. He is a specialist power system consultant with significant experience in power quality and switching studies initially with National Grid and later with Parsons Brinckerhoff (later WSP) and PSC. He has extensive knowledge in all aspects of power system modelling including steady-state, frequency- and time-domain modelling and substantial experience in harmonic performance specification for HVDC converter stations, renewable generation connections and the connection of traction supply points. He is Fellow of the IET, Senior Member of IEEE, Honorary and Distinguished Member of CIGRE and a Chartered Engineer in the UK. He is member of GEL/210/12 Committee at the BSI and of WG8 in IEC SC77A. He was the Chairman of CIGRE SC C4 System Technical Performance from 2016 to 2022. He received the CIGRE Technical Committee Award in 2013, the Distinguished Member award in 2014, the Honorary Member award in 2022 and the Senior and Principal Professional Associate titles within Parsons Brinckerhoff reflecting recognition on his technical and professional level. He has served in several colloquia, symposia and conference technical committees and continues to do so. He has over 60 technical publications and is a reviewer in many technical journals of IET, IEEE and other publishers.