Heerema Completes Installation of 24 of 27 WTGs on Arcadis Ost 1 OWF - Gallery – Heavy Lift News
3 Apr 2023

Heerema Completes Installation of 24 of 27 WTGs on Arcadis Ost 1 OWF – Gallery

Heerema Marine Contractors has successfully installed 24 wind turbines at the Arcadis Ost 1 wind farm using their novel Rotor Nacelle Assembly (RNA) installation method for their client Parkwind.

After the foundation installation began in the early summer of 2022, before the wind turbine installation began at the end of 2022. Arcadis Ost 1 has already been delivering green energy to the German grid since mid-January 2023.




The installation of 24 turbines for Parkwind’s Arcadis Ost 1 offshore wind farm has successfully been completed and most turbines are already producing green electricity and contributing to the German Energiewende. This marks the end of the first installation campaign of the wind farm using the revolutionary floating installation method developed together with Heerema Marine Contractors and Vestas. Unfortunately, Vestas incurred delays on the deliveries of some rotor blades. The remaining three turbines will be installed upcoming Autumn, completing the 257 MW wind farm.



The RNA method has proven to be a successful and reliable method for installing wind turbine generators with floating installation vessels. Installation cycle times were consistent and competitive with traditional methods.



Heerema’s CTO, Ramon de Haas, commented: ‘The floating installation of Arcadis Ost 1 has demonstrated Heerema’s ability to make a real change in the offshore wind market. We continue to be committed to introducing new methodologies that can solve industry challenges.’



“The success of the RNA installation method marks a significant achievement for the offshore wind industry.  Parkwind has been at the forefront of innovation in offshore wind for the last decade, and with Arcadis Ost 1 we continue to do so. As offshore wind energy targets grow, this kind of innovation is key if we want to move towards a sustainable future as fast as possible.  As zones go further offshore and turbines increase in size, we are certain to see a continued demand for substantial innovation in our industry. We are delighted to be a part of this journey,” commented Eric Antoons, co-CEO of Parkwind.



Heerema’s Project Manager, Thijs Postma, added: “Knowing that the entire market was watching the first commercial floating installation of wind turbine generators was a unique and special experience and I’m especially proud of the huge team effort that made this project possible. We thank all of our partners and subcontractors and look forward to the second campaign for the remaining turbines later this year.”



Source Heerema

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