In this paper, standards related to supply voltage are investigated, and in particular, Korean Industrial Standards which regulated in 220/380V±10% and, Electric utility act of Korea which regulated in 220±6% and 380V±10% are reviewed. SDU Center for Energy Informatics, Maersk Mc-Kinney Moeller Institute, The Faculty of Engineering, University of Southern Denmark, 5230 Odense, Denmark Centre for Industrial Electronics, University of Southern Denmark, 6400 Sonderborg, Denmark Authors to whom correspondence should be addressed. resources will be critical in reducing the electric sector emissions and achieving national climate goals. This policy brief identifies experts, and the most recent data and literature. It then explores policy solutions for. More than 60% of total power generation is produced from coal and nuclear power plants. Most of the power plants are located along the coast. Currently, independent power producers, including six power generation public corporations (GENCOs), are engaged. The Energy Master Plan is an overarching plan that covers all energy sectors and coordinates energy related plans from a macro perspective. It was introduced by Article 41 of the Basic Law on Low.