Our country's deepest offshore wind power project has achieved full capacity grid connection and power generation.

Xinhua News Agency, Beijing, April 7 (Reporter Dai Xiaohе)—China Huaneng announced on April 7 that the offshore wind power project in the northern Beihai area of the Shandong Peninsula, located in the northern part of the Yellow Sea, achieved full-capacity grid connection and power generation on the same day. This is the offshore wind power project with the greatest water depth in China, marking a new breakthrough in key areas for China’s offshore wind power, including construction in complex deep-sea environments, the integration of large-capacity turbine units, and high-precision intelligent construction.

The project has a total installed capacity of 504k kW. It will install 42 wind turbines with a capacity of 12 MW each. The center of the site is about 70 kilometers offshore, with a water depth of 52 to 56 meters. It is the offshore wind power project with the greatest water depth in China that is already operating commercially. The expected annual electricity generation is about 1.7 billion kWh, and it can save about 504k tons of standard coal each year.

The project overcame challenges such as complex geology in the deep sea, frequent occurrences of extreme sea conditions, and ultra-long-distance construction. It innovatively applied a four-pile jacket foundation structure, with a maximum height of 83.9 meters, which is the tallest among similar projects in China. This can effectively ensure the safe and stable operation of the wind turbines in complex deep-sea geological environments.

Relying on the BeiDou system, the project developed high-precision positioning technology to achieve millimeter-level construction positioning for pile installation on the seabed. In combination with intelligent auxiliary pile-lowering technology, it reduced the time required to install piles for a single turbine in the deep sea from 48 hours to 29 hours. At the same time, with the help of drone-based and manual magnetic field coordination technology, it completed the laying of 95.6 kilometers of ultra-long submarine cables.