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SANY Renewable Energy Achieves Milestone with World’s Longest Onshore Wind Turbine Blades

by Anna

SANY Renewable Energy in China has achieved a significant milestone in the wind energy sector by successfully engineering the world’s longest onshore wind turbine blades. These blades, named SY1310A, measure an impressive 430 feet, surpassing even the length of offshore wind turbine blades. This article delves into the challenges faced in wind turbine blade engineering, highlighting the details of SANY’s groundbreaking achievement.

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Wind turbine blades play a crucial role in converting wind energy into mechanical energy to generate electricity. However, optimizing their aerodynamic efficiency while maintaining structural integrity poses a considerable challenge. Striking the right balance is essential to minimize drag and turbulence for efficient energy capture while withstanding high mechanical stresses during operation.

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Blades constitute a significant portion of the expenses associated with wind turbines, making their design and manufacturing process a critical aspect of the renewable energy industry. Traditional methods are labor-intensive and expensive, prompting the need for more streamlined and cost-effective approaches to enhance efficiency, durability, and resilience.

SANY Renewable Energy’s SY1310A blade addresses these challenges by introducing innovative approaches in design, materials, and manufacturing processes. The blade’s length presented a unique challenge, requiring a high-performance airfoil with a thick, rounded trailing edge, optimized layout, and increased thickness. Utilizing carbon fiber composites, the airfoil design enhances energy capture efficiency without compromising structural integrity.

The manufacturing process involved cutting-edge technologies and novel techniques, including robotic-powered precision fiberglass cutting and a large-surface grinding robot with a specially designed CNC end milling tool for the blade root section. SANY reports a near-zero prefabrication failure rate and a blade manufacturing time of under 30 hours, ten hours less than the industry average.

SANY plans to deploy the SY1310A blades on the company’s 15-megawatt wind turbine, which made its debut at the China Wind Power 2023 exhibition, becoming the world’s largest at the time.

These technological advancements have profound implications for the wind energy sector. SANY’s innovative approaches in blade design and manufacturing pave the way for increased energy efficiency and a lower levelized cost of energy without compromising reliability. As wind power continues to play a pivotal role in the renewable energy portfolio, such innovations contribute to building a more sustainable and energy-efficient future.

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