TP-less monopile secondary structures design for the world’s first subsidy free wind farm

Hollandse Kust Zuid

Hollandse Kent
TP-less monopile secondary structures design for the world’s first subsidy free wind farm
Location: Dutch Sector of North Sea
Duration: 2019 - ongoing

Kent was contracted by Vattenfall to design the secondary and tertiary structures for the 140 offshore wind turbine generator (WTG) foundations for the Hollandse Kust Zuid 1-4 wind farms.

Kent developed novel solutions for the challenging TP-less concept and were flexible to adapt the design late in the project based on client preferences.

Despite relatively late changes due to the project novelty and complexity, Kent were still able to reduce the weight of the external working platform by around 40% through a design optimisation phase for the beam grillage. This was completed using MODOT, our in-house optimisation software coupled with the SESAM global model, which allowed significantly more design iterations to be considered.

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