World's largest ultra-tall wind farm begins operations

China A wind farm at an altitude of 4,650 meters went into operation in Nagqu Town, Seni County, Nagqu City, Tibet Autonomous Region on January 1.

Wind farm in Nagqu Town, Seni County, Nagqu City, Tibet Autonomous Region on January 1, 2024. Photo: CMG

Wind farms built at altitudes of 3,500 to 5,500 meters are considered ultra-high, according to China Energy Investment Corporation, the developer of the wind power project in Nagqu. The world's largest ultra-high-altitude wind farm has a capacity of 100 MW, covers more than 140,000 square meters and has 25 wind turbines. It is designed to provide 200 million kWh of electricity annually to the 230,000 residents of Nagqu city.

Due to its high altitude, the farm must withstand the harsh climate conditions of the plateau. "In the initial stage, we used a smart wind power platform to conduct accurate assessments of wind measurements, site selection and wind resources, and then develop the farm design. With stability control technology, we have overcome the problems caused by high altitude such as low wind energy conversion efficiency and wind turbine blade deceleration," said Hu Jiansheng, team leader of the 100 MW wind power project.

In addition, wind turbines are exposed to harsh weather conditions such as hail and lightning, as well as damage from UV rays, drastic temperature changes, and frequent erosion from wind, sand, rain, and snow. Therefore, the turbine blades require very good quality. Hu said that the project team invented a special external spraying technique that prevents the paint from becoming too dry and brittle, helping to protect the external parts of the wind turbine.

Before the operation, employees of China Energy Investment Corporation conducted a final inspection of the wind turbines to address issues caused by the high altitude. "All the turbines here have been repaired, all the main equipment and lines have been charged. I am very happy and excited to wait for the station to connect to the grid at full capacity," Qin Min, the operator of the 100 MW wind power project, said on January 1.

Thu Thao (According to CGTN )

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