These are called monoclinic piles, and they are huge piles that are installed on the sea floor and on which is placed the entire windmill. It has a diameter of 8.6 meters, which, according to Sif, is approximately the maximum that the company can make at its existing plants.

6 million families
Located between 130 and 190 kilometers off the British coast in the North Sea, Dogger Bank is set to become the world’s largest offshore wind farm, providing power to six million British households.

south coast dutch
Sif has now started production of 95 monopiles for the first stage of Dogger Bank. In the third quarter, Sif was still busy building the last monocultures for the Hollandse Kust Zuid wind farm. Due to the time it took to convert Dogger A Bank’s production lines, production weakened somewhat in the last quarter. Sif has seen its order book grow to 450 kilotons, from 400 kilotons at the end of the first half of this year. This is about final assignments and exclusive negotiations.

Even bigger monos
Seif recorded a sales volume of 332 million euros in the first nine months of this year, with an operating result of 28 million euros. Listed Sif searches in larger monocolumns measuring 11.5 meters in diameter, 120 meters in length and weighing 2,500 tons. For this new generation of wind turbines, the production facility in Rotterdam will have to be significantly expanded, and the facility in Roermond will have to be adapted in order to be able to build such foundations by the end of 2024.

200 pieces
Sif aims to produce 200 units annually. The company will make an investment decision on this in July next year. Sif is also studying the possibility of 15-meter diameter monopoles.