Sif Group

Sif Group constructed the foundation piles for the Eneco Luchterduinen offshore wind farm, a 129 MW project comprising 43 turbines located roughly 23 kilometres off the Dutch coast near Noordwijk and Zandvoort. The project’s foundation concept used an integrated foundation pile approach, avoiding a conventional separate transition piece by integrating key connection features into the monopile design to reduce material use and shorten the offshore installation process. In Eneco’s project communication, Sif Group’s scope was described as constructing the 43 foundation piles at its facility in Roermond. These monopile primary structures formed the core structural interface between each turbine tower and the seabed foundation system, and were produced to support the project’s installation methodology, including direct load transfer requirements during pile driving. Sif Group’s delivered work package therefore related to the fabrication and supply of the monopile primary steel for the full turbine set. The piles were subsequently prepared for offshore installation and for the offshore mounting of ancillary components such as ladders, platforms and boat landings during the construction phase.