West of Duddon Sands wind farm

Belfast, United Kingdom

With 108 wind turbines producing almost 400 megawatts, West of Duddon Sands is one of the larger European wind farms. It is being built by a joint venture of Dong Energy and Scottish Power Renewables. Boskalis Offshore and Volker Stevin Offshore – in an Offshore WindForce joint venture – were responsible for the transport and installation of the 108 foundations for the wind farm.

Two jack-up ships were deployed for the installation of the monopiles: the Pacific Orca, one of the largest jack-up vessels in the market and the Sea Installer. Offshore WindForce was responsible for the extensive mobilization operation to prepare the two vessels for their specialist work. To safeguard efficient and ongoing installation by the jack-up vessels without delays a feeder port in Belfast was designed and constructed. Offshore Windforce was responsible for tailoring the site to the complex logistical process.

Ko-Mats hard wood crane mats were used to strengthen the quayside creating a 17 by 250 meter road for a Weldex Liebherr LR 11350 crawler crane which was used for all logistical movements of the transition pieces at the Belfast feeder port.