China's deepest offshore wind power project will be fully connected to the grid and start power generation today.

China Huanneng announced on the 7th that the offshore wind power project in the northern Beihai of the Shandong Peninsula, located in the northern part of the Yellow Sea, achieved full-capacity grid-connected power generation that day. This is the offshore wind power project in our country with the greatest water depth, marking a new breakthrough in key areas for China’s offshore wind power—such as deep-sea complex environments, integration of large-capacity turbines, and high-precision intelligent construction.

With a total installed capacity of 504k kilowatts, the project will install 42 wind turbines of 12 megawatts 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 in China’s commercial operation with the greatest water depth. Its annual power generation is about 1.7 billion kilowatt-hours, and it can save about 500k tons of standard coal each year.

The project overcame challenges such as complex geology in deep-sea areas, frequent occurrence of extreme sea conditions, and extra-long-distance construction. It innovatively applied a four-pile jacket foundation structure; with a maximum height of 83.9 meters, it is the tallest of its domestic type. This can effectively ensure the safe and stable operation of the turbines in deep-sea complex geological environments.

Relying on the Beidou system, the project developed high-precision positioning technology to achieve millimeter-level construction positioning for pile-driving on the seabed. Combined with intelligent assisted pile-lowering technology, it reduced the pile-driving operation time for a single deep-sea wind turbine from 48 hours to 29 hours. Meanwhile, with the help of a coordinated technology using drones and an artificial magnetic field, it completed the laying of 95.6 kilometers of ultra-long submarine cable.

Source: Xinhua News Agency

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