World's largest onshore wind turbine in China

ChinaThe onshore turbine installed in Jilin province has a rotor diameter of 270 meters and blades length of 131 meters, producing enough electricity for 160,000 households annually.

Sany Renewable Energy, a subsidiary of Sany Group, a multinational heavy equipment manufacturer, announced the delivery of a 15 MW wind turbine at its factory in Tongyu County, Jilin Province, China. The machine is in prototype form and will undergo a year of testing to confirm its reliability, Interesting Engineering reported on October 10. The SI-270150 turbine is the largest onshore wind turbine in terms of unit power and has the largest rotor diameter (270 m) of any onshore wind turbine installed worldwide to date. Last year, the largest wind turbine installed on land was Minyang Smart Energy's MySE 10.X-23X, which had a rotor diameter of 230 m.

15 MW turbine in trial operation in Tongdu County, Jilin. (Photo: Sany).

This onshore wind turbine is a flagship product built on Sany's 12.X - 16.X MW array. It has an operating life of 25 - 30 years. The system has 131 m long blades, reaching a maximum swept area of ​​57,256 m ² . With such a large capacity, just one turbine can produce enough electricity to supply 160,000 households throughout the year.

The SI-270150 features an ultra-lightweight design and AI-powered load-shedding technology , which minimizes the load and simplifies long-distance transportation. These technologies enhance performance and ensure that the turbine can be transported to remote areas with fewer challenges. The turbine's drive system includes a double tapered roller bearing (TRB) with integrated main shaft support system, providing high load-bearing capacity and stability, allowing the turbine to operate more durably in a variety of conditions.

In January, Sany announced that it had produced its first wind turbine blades at the Bayannur Smart Industrial Park. As blade lengths increase, the need for greater rigidity and strength to prevent problems such as stalling, vibration, and even blade breakage increases. To address the issue, Sany developed an aerodynamically optimized design for wind turbine blades with large thickness and a blunt trailing edge. This design improves the structural integrity of the blades.

Sany also incorporates a number of advanced technologies in blade manufacturing, including 3D design for trailing edge sealing and fiberglass pre-tufting technology, replacing manual manufacturing with intelligent automated processes. To enhance the recyclability of the ultra-long blades and increase their durability, Sany uses structural components made from recycled polyurethane.