World's largest offshore wind turbine rolls out

China The world's most powerful offshore wind turbine with a capacity of 18 MW rolled off the production line in Fuqing, Fujian province, on November 10.

Workers inspect a key part of an 18 MW wind turbine. Photo: CMG

The direct-drive offshore wind turbine has the world's largest unit capacity and largest rotor blade, according to CGTN. Composed of more than 30,000 components, the new wind turbine has a 126-meter-long rotor blade and a swept surface of 53,000 square meters, equivalent to 7.5 standard football fields. The inner diameter of the rotor shaft can be up to 160 meters. The turbine is designed for seas with winds of more than 10 meters per second. It can also withstand typhoons with winds of 80 meters per second.

"Because the direct-drive turbine is easy to operate, requires no maintenance and can produce a large amount of electricity, we will use it widely in the far sea," said Ge Hongbing, general manager of Dongfang Wind Power Company.

Each turbine unit can produce 18 megawatts (MW) of power in an environment with an average annual wind speed of 10 m/s. It produces 38 kilowatt hours (kWh) of electricity per rotation and provides 72 million kWh of electricity annually, meeting the needs of 40,000 households. The clean energy produced by the turbine can save more than 20,000 tons of standard coal and reduce 55,000 tons of carbon dioxide emissions each year.

The 18 MW wind turbine is expected to be mass-produced this year and installed in the coastal area of southeast China. Key components of the turbine, such as blades, rotor, generator, converter and transformer, are produced domestically.

Offshore wind turbines require higher standards and research and development costs than onshore turbines. New wind turbines can be more suitable for the complex offshore environment than previous designs, and have a longer service life. China is by far the world's largest manufacturer of wind turbine equipment, accounting for half of global output. China has built more than 20 offshore wind farms with each turbine's unit capacity ranging from 6 to 18 MW.

An Khang (According to CGTN )

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