A big baby´s first steps

Brande / 20 February 2020

The newest Siemens Gamesa offshore wind turbine, the SG 11.0-193 DD Flex is big enough to produce power for 11,000 European households. To get ready for its first job at the world’s first subsidy-free offshore wind farm Hollandse Kust Zuid, it is taking its first steps in life at one of the most advanced wind turbine test facilities in the world, Denmark’s National Test Center for wind turbines in Oesterild. Ironically enough, the installation process here is the one time in a turbine’s life where the engineers cross their fingers for as little wind as possible.
Corporate Affairs Department
The SG 11.0-193 DD Flex can reach a capacity of 11 MW under specific site conditions meaning that it is now the most powerful wind turbine in the Siemens Gamesa fleet and the second most powerful wind turbine on the market.
But before it is taken out to sea, the prototype of the turbine is tested from top to bottom at the test center. With an average wind speed of at least 8 meters per second at a height of 100m, the wind conditions at the onshore test center are the closest you can get to a real offshore site.

The installation of the prototype was in some ways like an enormous puzzle with many big and small pieces. The nacelle measures 20m in length and 12m in height. The blades are 94m long, and the area they cover when turning in the wind is 29,300m2 or roughly the same size as four football pitches.
The first 94m long blade arriving at the test center
Because of these huge dimensions and the weight of all the components, one of the biggest cranes in the world with a capacity of up to 1,300T was rented to lift the components to their destination at the top of the 140m high tower. “The installation went very well. We have all the best equipment, and the installation team members are very experienced; many of them have worked with wind turbine installations for several years,” says Senior Installation Manager Soeren Storgaard, who had the overall responsibility for the installation.
The installation attracted a lot of attention from local citizens

“All steps in this process were planned down to the tiniest detail. Except for one – the wind! Be it on land or at sea, we depend on the wind to blow. But when we use the crane to lift the big components of a wind turbine into place; we ironically depend on the wind not blowing.” Over the next couple of years, our engineers will carry out tests and validations on this newest member of the Siemens Gamesa wind turbine family.

The transport of the huge components to their destination at the test center and the installation attracted a lot of attention from local citizens as well as media. Just as you see people at airports enjoying spotting planes, you could see people following the progress of the transport and installation.

A competition among Siemens Gamesa employees to take the best photo during transport resulted in many good shots.

Enjoy the selection in this photo gallery and find your favorite!


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