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Bold Tern Involved in the Completion of the Worlds’ Biggest Offshore Wind Farm

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Operating in its Element

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In February 2020, it was one year ago that Bold Tern left the port of Hull in the United Kingdom with the first load of turbines for the world’s largest offshore wind farm installed to date: Hornsea One. Approximately one year later, the wind farm became fully operational.

In September 2019, Fred Olsen Windcarrier’s jack-up installation vessel Bold Tern successfully installed its last turbine on Hornsea One. Bold Tern installed 91 out of the 174 turbines at a distance of 120 km from shore, making Hornsea One the furthest offshore wind farm that has ever been built. The Bold Tern had been installing turbines in tandem with DEME’s Sea Challenger. Whereas the Sea Installer participated in the transition piece installation campaign. All three vessels are GustoMSC NG-9000C design jack-ups. A fourth jack-up, GMS Endeavour, a GustoMSC NG-2500X design, has been functioning as a modern offshore hotel to support the commissioning activities from an in-field location.

It is great to see all our ideas now put into practice, and work with so many great people who are all very excited about this ground-breaking project. Malte Roeder, Foundation Installation Manager Vattenfall

June 2020 Reading time: 2 min

GustoMSC Karel Doormanweg 35 3115 JD Schiedam The Netherlands

nov.com/gustomsc

info.gustomsc@nov.com

+31 (0)10 2883 000

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Zana Sulaiman CFD Expert Engineer

Unlocking the full potential of offshore units There is a tendency to design ever larger jack-ups enabling the installation the ever lager offshore wind turbines. This makes stability and using accurate wind loads prediction even more important. Testing this with a scale model in the early design stage is expensive and time-consuming. Also, separate parts of the jack-up such as the legs, cranes and deck load cannot be accurately tested at model scale because of large scale effects involved. With GustoMSC’s CFD calculation method, it is also possible to calculate the wind loads acting on the components of the jack-up separately for wind loads even at full scale. Less costs and more efficiency with the CFD method By accurately predicting the wind loads on jack-ups and its components with the CFD method, the jack-up can be optimized at the beginning of the design phase. This not only results in significant cost savings, but also increases the efficiency of jack-ups. By using the CFD method in the design phase, more space can be created on the deck of the jack-up, allowing more cargo to be transported. In addition, a lighter jack-up also offers an advantage during transport from port to the offshore work location. A lighter jack up consumes less fuel and that results in a smaller industry footprint.

The main advantage of using CFD is that it can provide useful information at the start of the design process. Zana Sulaiman

The same cross-sectional view of the velocity magnitudes but now with the deck load

Cross-sectional view of the velocity magnitudes along with the pressure distribution on the jack-up without deck load at a flow angle of 90 degrees

Bold Tern Involved in the Completion of the Worlds’ Biggest Offshore Wind Farm

Operating in its Element

InSide

A storytelling platform about our offshore challenges

June 2020 Reading time: 2 min

Watch the Fred Olsen project film

Hornsea One

Hornsea One is an offshore wind farm located off the Yorkshire coast within the Hornsea Zone in the southern North Sea. At 1.2GW, the project will be the world’s biggest offshore wind farm commissioned to date and the first offshore wind farm to have more than 1GW of capacity. The wind farm will have a lifespan of about 25 years and will power approximately one million UK homes.

In February 2020, it was one year ago that Bold Tern left the port of Hull in the United Kingdom with the first load of turbines for the world’s largest offshore wind farm installed to date: Hornsea One. Approximately one year later, the wind farm became fully operational.