China’s first submarine power cable will be laid through the Qiongzhou Straits this year, connecting the provincial grids of Guangdong and the southernmost Hainan Island. A 34.7-kilometer benthal cable and a 144-kilometer trolley wire will be constructed to link the Gangcheng transformer substation in Guangdong’s Zhanjiang City and the Fushan transformer substation in Hainan’s Chengmai County with a 500-kilovolt alternating current grid. The project will cost 2.1 billion yuan ($280 million).
When completed in the first half of 2009, the submarine power cable is expected to be the longest of its kind in the world.
Source: www.chinaequip.gov.cn, February 13, 2008