Burbo Bank Extension

Two projects in one

In August 2015, fabrication of the first project at the Offshore Structures Britain facilities (OSB)* in Great Britain was started up. The contract was for a total of 32 transition pieces for Burbo Bank Extension Offshore Wind Farm - awarded by EEW Special Pipe Constructions GmbH. 16 transition pieces were fabricated at the OSB facilities, while the remaining 16 were fabricated at our production site in Aalborg, Denmark.

Transition pieces

All 16 transition pieces had a height of 23 metres and a diameter of 7 metres. Each transition piece had 236 tons of primary steel, and weighs a total of 450 tons including the concrete platform. The Burbo Bank Extension Offshore Wind Farm consists of an area of 40 km2 located 6 km off the coast of United Kingdom.

The Burbo Bank Extension project was expressed and delivered on time and in line with client quality specifications.


  • Client: EEW Special Pipe Constructions GmbH/DONG Energy

  • PC contract

  • Country: United Kingdom

  • Location: Irish Sea

  • Installation year: 2016

  • Project capacity: 258 MW

  • Distance to shore: 6 km

  • Water depth: 2 - 14 metres

  • Number of turbines: 32

Walney 3

40 transition pieces

In last quarter of 2015, Bladt Industries A/S was awarded a PC contract by EEW Special Pipe Constructions GmbH for a total of 87 transition pieces for the Walney Extension Offshore Wind Farm project.

The contract is divided in two different projects with four different types of transition pieces.

The Walney 4 project is for the fabrication of 47 transition pieces at our production facilities in Aalborg, Denmark. They have a diameter of approx. 6 metres and an average weight of 400 tons each. At the OSB facilities* in Great Britain, the 40 transition pieces for the Walney 3 project were  fabricated with a diameter of between 6.5 – 7.4 meters and an average weight of 350 tons each. Fabrication of both projects were started up in the second quarter of 2016 and the projects are expected to be finished and ready for loadout in the first quarter of 2017.The Walney Extension Offshore Wind Farm will have a capacity of 659 MW and will be situated 19 km off the British coast in the Irish Sea


  • Client: EEW Special Pipe Constructions GmbH

  • Location: Great Britain, Irish Sea

  • Project capacity: 659 MW

  • Commissioning: 2019 Number of turbines: 87 in total

  • Water depth: Between 21-50 metres

  • Distance to shore: 19 km from British coast Total length: 22 metres

  • Total weight/each: 350/400 tons

  • Fabrication start: January 2016

Hornsea One

In the last quarter of 2016 OSB was awarded the contract for Hornsea 1 to provide 56 transition pieces for the Hornsea Wind Farm.

This marks a significant step change for OSB in terms of load which marks the on going connection and trust between OSB and DONG Energy Wind Power. The delivery of the first Transition Pieces for Hornsea are anticipated to commence in the third quarter of 2017.