Hyung-Keun Ahn received the B.S. and M.S. from Yonsei University, Seoul South Korea and the Ph.D. from the Electrical Engineering Department, University of Pittsburgh, Pittsburgh, PA, USA, in 1993. From 1986 to 1995, he was with the LG Semiconductor Co. working on silicon-based device design and process integration. In 1995, he joined the Department of Electrical Engineering, Konkuk University, Seoul Korea, where he is a professor and dean of Next Generation PV Module and Power System R&D Center. From 2014 to 2016, he was also a foreign professor in the department of electrical and control engineering, division of EE, SDUT (Shandong University of Technology), Zibo, Shandong, China. He is currently working on fault detection of PV station and microgrid network design for net-zero energy environments using renewable energy resources including ESS, wind and fuel cell with floating and marine photovoltaic systems under the demand response control for RE100. His research interests include reliability of both Si and GaAs-based solar cells and PV modules for applications in micro roof-top to large scale of PVs connected with ESS and his key focuses stay on failure analysis, reliability, and maintenance, repair, and operation for durable renewable energy system. Dr. Ahn was a Committee Member of the National Science and Technology Commission, Department of Energy, South Korea, from 2005 to 2007.