Blyth Offshore Wind Demonstrator Project

Design, construction, transportation and installation of pioneering gravity base foundations for an offshore wind farm.

Final welds taking place to the upper shafts late April 2017.
Final welds taking place to the upper shafts late April 2017.
  • Updated: 25 May, 2017

Project facts

Project team:

  • Client: EDF Energy Renewables
  • Contractor: BAM Nuttall / BAM Infra
  • Designer: BAM Infraconsult

Cost:

Confidential

Completed by:

Confidential

Website:

LinkedIn page

 

What will the project deliver?

This project is testing a new foundation alternative for offshore windfarms, providing an alternative to the traditional monopile and jacket solutions.

The five reinforced concrete gravity bases are unique in that they are constructed in a dry dock and will be floated to their final position off the coast of Blyth. The bases will be lowered onto the sea bed and filled with ballast before the wind turbine (tower, turbine and blades) are added.

The wind turbines, each producing 8.3MW, are currently the largest in the world and the blades will have a sweep of 165m, 30m more than the London Eye.

Local impact

Significant employment and investment has come to Wallsend where the units have been fabricated and assembled. The aspiration is that the same site will be used to produce more foundations and hence creating more jobs. Once operational, the turbines mounted on the foundations will generate enough green energy to power 34,000 homes.

Interesting facts

  • Pioneering foundation technology paired with the largest wind turbine in production for demonstrator site
  • 28,000 tonnes of reinforced concrete and steel construction completed in just nine months
  • Design, construction and project interfaces has seen parties from all corners of Europe working together

Project images

North East Chair Sarah Kellerman on a site visit with John Slaven, Senior Agent at BAM Nuttall.
North East Chair Sarah Kellerman on a site visit with John Slaven, Senior Agent at BAM Nuttall.
North East Chair Sarah Kellerman on a site visit with John Slaven, Senior Agent at BAM Nuttall.

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