On July 29, CHN Energy's first gigawatt-class offshore photovoltaic project—the Guohua Investment Shandong HG14 Offshore 1GW Photovoltaic Project—began the submarine cable laying phase. It the offshore photovoltaic with the largest number of circuits, the longest power transmission line and the highest medium-voltage capacity in China.
Located in the eastern sea area of Kenli District, Dongying City, Shandong Province, the project has a planned installed capacity of 1 gigawatt, with the center of the site approximately eight kilometers offshore. The project will use a 66 kV submarine and land cable with varying cross-sections and will include both fiber-optic composite submarine cables and land power cables. The total length of the submarine cables is 142.5 kilometers, and that of the land cables is 143 kilometers. It is the first offshore photovoltaic project in China to use 66 kV cables for long-distance power transmission. The project will employ a modular power generation and centralized grid connection approach, with the submarine cables connecting to a new 220 kV onshore substation.
After connected to the grid, the project will generate approximately 1.78 billion kilowatt-hours of clean electricity annually, saving about 594,500 tons of standard coal and reducing carbon dioxide emissions by approximately 1.441 million tons each year.
