Monopile installation in full swing in Fryslân Wind Farm

The Lady Alida Bruinisse loaded with 4 monopiles

This week work has started on the installation of in total 89 monopiles in the Fryslân Wind Farm in the Frisian part of the IJsselmeer lake. In the coming months, the Zuiderzeewind contractor consortium will drive approximately 2 piles per day into the seabed of the IJsselmeer, weather permitting.

The consortium of Siemens Gamesa Renewable Energy (SGRE) and Van Oord Offshore Wind hopes to complete the installation in January 2021. The wind farm should be operational in 2021.

On Sunday, September 6, the first load of foundation piles left for the construction site. After everything has been tested first, the first monopile was driven into the seabed on Monday morning. In total, 89 wind turbines from SGRE with a capacity of 4.3 MW will be installed in the wind farm. These are placed in a cluster, in the shape of a hexagon. Fryslan wind farm reports that this shape has been chosen in order to limit the obstruction of the view of the horizon as little as possible.

Due to the shallow waters in the IJsselmeer and the narrow locks, it is not possible to use specialist offshore installation vessels. In order to be able to install the large components, Van Oord has developed a unique work platform that is the size of half a football field, the so-called “Sarens Soccer Pitch (SSP)”. The work platform was built in the Flevohaven. Crane specialist Sarens supplied the crane with which both the foundation piles and the turbine components can be placed.

The SSP remains on the construction site 24/7 to carry out the installation. Several ships facilitate the installation work. The cargo vessels that transport the monopiles include the Lady Ann Beau and Lady Alida Bruinisse of shipping company Wijnne Barends. Driving a foundation pile takes between 30 and 90 minutes, but depends on the weather conditions.

Zuiderzeewind hopes to start install the wind turbines in the spring of 2021. The turbine installation work is expected to be completed in the summer of 2021. With a capacity of 382.7 MW, Wind Farm Fryslân can supply green electricity that is comparable to the electricity consumption of approximately 500,000 households.

The next edition of Wind Energy Magazine includes an interview with Joris Hol, EPC Director Windpark Fryslân. Request your free copy here.