All turbines installed at Kaskasi

4C Offshore | Tom Russell
By: 22/11/2022 RWE

The last turbine at RWE’s
Kaskasi offshore wind farm has now been installed 35 kilometres north of the German island of Heligoland.

More than two thirds of the wind farm’s 38 turbines are already feeding electricity into the grid. The entire wind farm is scheduled to be operational by the end of the year and is expected to be capable of supplying green electricity to the equivalent of over 400,000 households per year.

Some of the turbines at Kaskasi are now generating electricity with recyclable rotor blades. The Siemens Gamesa RecycableBlade allows the component materials to be separated from one another thanks to its special chemical structure. The separation process protects the properties of the materials, allowing them to be reused in other applications – for example, in the automotive industry or in consumer goods such as suitcases and flat screen casings.

“Together with our partner companies, our team has persistently pushed ahead with the installation of turbines at our sixth wind farm off the German coast. Since July, a total of 38 wind turbines have been successfully installed off the island of Heligoland. This is exactly the kind of determination we need, because faster offshore expansion allows us to achieve our climate targets as well as greater energy sovereignty,”
said Sven Utermöhlen, CEO Wind Offshore, RWE Renewables.

RWE is testing further innovations at Kaskasi
including vibro pile driving technology and the Self-Expanding Pile Shoe, a new foundation solution with a concrete ring that expands in the seabed.

RWE has also for the first time installed special collars around monopile foundations at seabed level on its
Kaskasi offshore wind farm. The collared monopile is a design based on an RWE patent and aims to provide additional support for lateral loading, increase the bearing capacity and improve the structural integrity of the entire foundation. In total, three foundation collars were embedded into the seabed – each 7 metres high, weighing 170 tons.

Kaskasi is RWE’s sixth wind farm off the German coast. By 2030, RWE intends to grow its offshore wind capacity from currently 3 GW to 8 GW. Globally, RWE is driving an offshore wind development pipeline of 10 GW with secured offshore rights. The company has a particular focus North America, the Asia Pacific region and attractive markets in Europe in particular – including the Baltic States.

For more information on offshore wind farms worldwide, click here.