China Railway Construction Corporation ( CRRC ) has set a new standard in renewable energy by successfully completing the hoisting of its 20 MW “Qihang” floating wind turbine . This mammoth project took place at the Dongying Wind Power Equipment Certification and Testing Innovation Base, Shandong Province, China.
The colossal design of the floating wind turbine
The Qihang has a rotor diameter of 260 metres, equivalent to seven football fields, and a shaft that reaches a height of 151 metres. This offshore turbine has the capacity to generate electricity for 3,500 hours per year under ideal conditions, and has a projected lifespan of 25 years. A single rotation of its blades can meet the electricity demand of a family for up to four days, avoiding the consumption of 25,000 tonnes of coal and reducing CO₂ emissions by 62,000 tonnes per year.
The design of the Qihang integrates advanced technologies that enhance operational stability and safety in extreme conditions such as typhoons. These include modular control systems and severe weather protection strategies, ensuring reliable operation on floating platforms . In addition, the modularity of its components allows for greater flexibility in maintenance and scalability for future renewable energy developments.
From its roll-off in October 2024 to its arrival at the test rig in Dongying , the “ Qihang project ” demonstrated CRRC’s ability to overcome technical challenges. This includes manufacturing robust structures to minimise deformations and conducting extensive testing covering more than 200 critical points. These tests collect three-dimensional data on wind, wave and structural responses, ensuring its efficiency and reliability before deployment in deep waters.
The installation of the colossal wind turbine. Source: CRRC
The Qihang is a testament to CRRC’s commitment to renewable energy innovation. With this technology, the company hopes to inspire new developments that will accelerate the transition to a sustainable and energy-efficient future.
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Source and photos: CRRC
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