500 kV East Coast─Singapyeong Transmission Line Project, South Korea January 4, 2021 | Asia Pacific Project Update The planned 500 kV high voltage direct current (HVDC) East Coast─Singapyeong transmission line will facilitate the evacuation of 6.8 GW of power from the Samcheok thermal power plant. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password