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Borssele V construction to kick off this spring

4C Offshore | Bridget Randall-Smith
By: Bridget Randall-Smith 16/03/2020 4C Offshore
Offshore construction for the Borssele V offshore wind farm is expected to start next month. The project was awarded to the Two Towers consortium (Van Oord, Investri Offshore and Green Giraffe) in April 2018 as an innovation site.

Located 20 km off the Dutch coast, the site will feature two
V164-9.5 MW turbines on monopile foundations manufactured by Sif. Installation of the monopiles is due to get underway in April. Van Oord's construction vessel Aeolus is due on site after completing foundation installation at the Borssele 3&4 wind farm, currently under construction.

Borssele V will share a grid connection with
Borssele 3&4 via the Borssele Beta offshore platform. The 3,700 tonne topside is scheduled for sail away mid-March and will be operational later this year.

Two Towers intends to implement an innovative 'split joint' clamping connection solution between the foundation and tower. This technology, developed in collaboration with Van Oord, offers an alternative to flanged or grouted connections and is expected to be maintenance-free, and reduce installation time. The consortium will also use innovative aluminium-based protection coating (TSA), which ensures a higher life expectancy of the mast and requires less maintenance will be tested. Impressed Current Cathodic Protection (ICCP) monitoring system and an oval cable hole will also be deployed at the site.


Furthermore, new eco-designs for scour protection will be tested to determine effects on the maritime environment. This includes the use of scour protection in creating reef systems, such as oyster reefs, which are designed to help promote a healthy and diverse marine ecosystem.


The Dutch government aims to increase the installed offshore wind capacity to 4.5 GW by 2023 across the
Borssele, Hollandse Kust Zuid and Hollandse Kust Noord wind energy areas. The tender for the latter is due to open for bids in April 2020. A further 7 GW of new projects are scheduled to enter construction during the latter half of the decade, with least 11.5 GW expected to be operational by 2030.

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