World's most powerful wind turbine installed in China

China takes back crown for most powerful installed wind turbine from Europe, amid concern that relentless arms race to build ever larger machines is doing industry more harm than good

The nacelle for the 26MW wind turbine being hoisted during installation.
The nacelle for the 26MW wind turbine being hoisted during installation.Photo: Dongfang Electric

A record smashing 26MW offshore wind turbine has been successfully installed in China by Dongfang Electric, which has now wrestled the claim of having the world’s most powerful installed turbine from Siemens Gamesa.

Dongfang announced today that it has installed the prototype machine at a testing and certification base, saying that it marked a leap forward for the global wind sector.

The turbine has a rotor diameter of 310 metres, with blades that are a record-breaking 153 metres in length. The hub centre for the machine is 185 metres above sea level, or in the case of this onshore prototype, ground level.

The machine features over 30,000 different components and is resistant to even Category 17 super typhoons, said Dongfang.

Dongfang revealed last year it that it was developing a 26MW turbine – almost twice as powerful as current leading machines – as it rolled the first nacelle off the production line.
In May, Dongfang announced that it had completed static load testing on blades that it will use.

Earlier this month, Dongfang announced that it had successfully shipped what it said was the world’s heaviest nacelle for the turbine – a 500-tonne beast – along with three blades.

With installation of the machine complete, Dongfang is now the operator of what is comfortably the world’s most powerful wind turbine.

German-owned turbine making giant Siemens Gamesa had taken that record in April, when it installed a 21.5MW model at a test centre in Denmark.

That was something of a coup for Europe’s wind industry, which has in general fallen far behind Chinese wind giants on turbine size and power, with many leading players now planning to deploy 25MW turbines. Only Dongfang is known to have plans for a 26MW turbine, however.

Whether wind industry ‘arms race’ to build ever larger turbines is something to be celebrated is another matter. Many supply chain companies and experts have warned that constantly scaling up turbines is hindering the industry’s ability to scale up deployment generally.

There are also concerns that constantly building new machines, often on short timelines, could threaten their reliability. Another Chinese wind giant, Mingyang, saw its 20MW prototype installed almost a year ago today suffer a double blade break months later during testing.
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Published 29 August 2025, 11:59Updated 29 August 2025, 14:32
Dongfang ElectricChinaAsia-Pacific