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Heavy plate from Dillinger for the Merkur offshore wind farm

Dillinger steel at the heart of the German ”Energiewende”

Located in the North Sea, off the Dutch and German coasts, in the German Exclusive Economic Zone (EEZ) about 45 km (28 miles) north of the island of Borkum, the Merkur wind farm, covering an area of 47 km², is one of the largest wind farms in the North Sea and represents a major milestone in Germany's energy transition.

It consists of 66 wind turbines (total capacity of 396 MW) and generates approximately 1,750 GWh annually, enough clean energy to supply nearly half a million German homes and to eliminate over 566,000 t of CO2 emissions.

Steel giants

These wind turbines generators impress not only with their innovative gearless technology (GE Haliade 150-6MW) but also with the size of the towers and foundations on which they are mounted more than 100 m over the water level. They are equipped with one of the largest rotors in the wind industry, having a diameter of 150 m (73.50 m long blades) and sweeping an area equivalent to three football fields. The towers weighing 400 t each are twice as high as the Statue of Liberty. At water depths of 27 to 33 m, they are installed on monopiles foundations with diameters of up to 8 m, lengths of up to 73 m and a weight of about 970 t each.

For these monopiles foundations, Dillinger supplied around 57,000 t of thermo-mechanically rolled heavy plates in thicknesses from 30 to 100 mm.

Furthermore around 10.000 t of Dillinger steel are used in the towers of this wind farm.

Transformer substation: Dillinger steel converts

Heavy plates from Dillinger have also been used for the construction of the farm’s transformer substation (2,700 t thermo-mechanically rolled plates in thicknesses from 16 to 90 mm).

Set up in a water depth of 25 m, this substation with a total weight of 4,200 t collects the energy from the wind farm’s 66 turbines, converts it to a higher voltage (from 33 kV to 155 kV) and sends it to a power transfer station. The electricity obtained is then transported through an underwater cable to its final destination.

©SWN

©SWN

Facts

Opening date June 2019
Country Germany
Quality S355NL, S355ML, S420ML, S355G7+M, S355G9+M, S355G10+M, S460G2+M
Operator Merkur Offshore GmbH
Delivered quantity 70,000 t
Emplacement North Sea
Wall thickness 16 - 100 mm
©SWN ©SWN

Contact

 Natalie Federmeyer
Natalie Federmeyer

Sales Wind & Tidal Power

Tel.: +49 6831 473449
Fax: +49 6831 47992685
E-Mail

Dillinger

Contact

Dr. Tobias Lehnert
Dr. Tobias Lehnert

Marketing & Technical Support

Tel.: +49 6831 472394
Fax: +49 6831 473089
E-Mail

Dillinger

Innovative top-quality steel products, total orientation around our customers' needs and unceasing technological development in close cooperation with our partners form the basis of our success - as they have for more than 333 years.

© 2016 Dillinger All rights reserved.

Contact

AG der Dillinger Hüttenwerke
Werkstraße 1
66763 Dillingen/Saar

Tel.: +49 6831 47 0
Fax: +49 6831 47 2212
E-Mail: info@dillinger.biz

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Our newsletter news@dillinger informs you about interesting news and developments at Dillinger – the company, it’s products, examples of steel applications, processing instructions, etc.

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Heavy-plate products
  • Non-alloy structural steels
  • Normalised fine-grained structural steels
  • Thermomechanically rolled fine-grained steels
  • High-strength quenched & tempered fine-grained steels
  • High-temperature steels
  • Cryogenic steels
  • Weathering-resistant steels
  • Case-hardening & quenching & tempering steels
  • Security steels
  • Tool & mould steels
  • Wear-resistant steels
  • Sour-gas-resistant steels
  • Offshore steels
  • Linepipe steels
Applications
  • Steel Construction
  • Hydropower Engineering
  • Pressure Vessels & Boilers
  • Earthmoving Machinery & Mining
  • Mechanical Engineering
  • Offshore Oil & Gas
  • Large Diameter Pipes
  • Shipbuilding, inc. Refrigerated Transport
  • Plastics and Concrete Moulds
  • Wind & Tidal Power
  • Protection
Proprietary steels
  • DILLIDUR
  • DILLIMAX
  • DI-MC
  • DIWETEN
  • DICREST
  • DIWA
  • DILLINAL
  • DIROS
  • DIMO
  • DIFENDER
  • DICUT
  • DI-RACK
  • DIGEAR
  • DI-TANK
  • DIWIND
  • Other steels
Plates on stock and steel services
  • Heavy plate services ex stock
  • Heavy plate services ex mill
By-products & Chemical laboratrory
  • By-products
  • Chemical laboratrory services