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RWE's wind farm commences regular operation

By: Chloe Emanuel 23/03/2023 RWE

General Windfarms

RWE's wind farm Kaskasi, located around 35 km north of the island of Heligoland, officially commenced regular operation in the presence of Robert Habeck, German Federal Minister for Economic Affairs and Climate Action.

With an installed capacity of 342 MW, Kaskasi could supply the equivalent of over 400,000 households with renewable electricity. The 38 wind turbines of Kaskasi were successively commissioned over four months. Since the end of 2022, all turbines have been feeding renewable electricity into the grid.

After all required tests have been completed, the wind farm is now commencing regular operation. The approval procedure for the wind farm started in spring 2019 and construction was greenlighted by the German Federal Maritime and Hydrographic Agency at the end of 2020. The total offshore construction time was nine months, the investment costs for Kaskasi amounted to around 800 million euros. More than 100 people at RWE alone worked on implementing this project, hand in hand with the staff from over 70 suppliers.

Markus Krebber, CEO of RWE AG commented: “Our Kaskasi offshore wind farm was the only that was constructed and connected to the grid in Germany last year. Many more must follow over the coming years for Germany to reach its climate targets. As one of the world’s leading companies in offshore wind, RWE can contribute considerably to achieving these goals. Together with our partner we have just selected the preferred turbine supplier for the next offshore wind cluster off the German coast. The cluster will have a total capacity of up to 1.6 gigawatts. And of course, we will also take part in the large German offshore auctions in summer this year.”

Three turbines at the Kaskasi wind farm are equipped with the first rotor blades that can be recycled at the end of their life cycle. Thanks to a new type of resin with a special chemical structure, the materials used for producing the Siemens Gamesa RecyclableBlade can now be separated again for the first time. This process ensures that the properties of the individual materials remain intact so that they can be reused. The recyclable rotor blades are also installed at the Sofia wind farm, which is currently being constructed by RWE off the UK northeast coast.

Marc Becker, CEO Business Unit Offshore at Siemens Gamesa commented: “Approximately 90 percent of a wind turbine can already be recycled. However, up to now it was not possible to recycle the rotor blades. We are now taking the crucial step to elevate the sustainability of wind turbines to the next level and be able to recycle the entire turbine by 2040 at the latest.”

After Nordsee Ost (295 MW) and Amrumbank West (302 MW), Kaskasi is the third RWE wind farm that will be operated and maintained from the company’s service station on Heligoland. Around 100 service technicians, engineers and control room staff ensure smooth operation of the three wind farms. And RWE is continuing the expansion of offshore wind energy off the German coast. North of the island of Juist, the company is developing the Nordseecluster in collaboration with a Canadian partner. The four sites will feature a total installed capacity of up to 1.6 GW. The two projects (N-3.8 and N-3.7) of the first construction phase with a capacity of 660 MW are currently awaiting approval. The partners are planning to take part in the German government’s offshore wind auctions and to exercise their rights of entry for the remaining two areas (N-3.6 and N-3.5) this year.

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

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RWE's wind farm commences regular operation

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