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China's first deep-water floating wind power platform sets sail

Author : PCEC

03 April 2023

On March 26, China's first deep water floating wind power platform "CNOOC Guanlan" set sail in Zhuhai, Guangdong. This marks a key step for CNOOC's offshore oil and gas development as it looks to enter its "Green Power Era".

Image: CNOOC
Image: CNOOC

CNOOC Guanlan has an installed capacity of 7.25MW and is composed of floating foundations and wind turbines. The overall height of the equipment exceeds 200 metres and weighs 11,000 tons. At the bottom of the platform is a triangular floating foundation with a weight of 4,000 tons. The tower is more than 80 metres high, and the cabin weighs 260 tons.

According to Kang Siwei, General Manager of the Engineering Construction Center of CNOOC New Energy Branch, CNOOC Guanlan is China's first floating wind power platform. It operates more than 100 kilometres from the coastline at a water depth of more than 100 metres. Its commissioning has increased China's independent development capacity for offshore wind power from less than 50 metres deep to more than 100 metres deep.

After being put into operation, the annual power generation capacity of the wind turbine will reach 22 million kwh, which can meet the annual electricity demand of 30,000. The generated electricity is connected to the power grid of offshore oilfields through a 5-kilometre dynamic submarine cable, which CNOOC says can save nearly 10 million cubic metres of natural gas and reduce carbon dioxide emissions by 22,000 tons per year.

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