SGCC commissions 500 kV submarine project in Zhejiang Province, China January 16, 2019 | Asia-Pacific News State Grid Zhejiang Electric Power Company, a subsidiary of State Grid Corporation of China (SGCC), has commissioned a 500 kV line in Zhoushan, Zhejiang Province, China. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password