Heavy-lift contractor Boskalis has completed its scope of activities for Ocean Winds’ Moray West offshore wind farm. Over the past two years, the company deployed six of its vessels for this project in Scotland. 

Gardline carried out extensive geotechnical and geophysical survey works prior to the installation work. In later phases, Boskalis’ subsea rock installation vessel Rockpiper installed more than 110,000 tons of rock as scour protection for the 62 XXL monopiles and the company’s semi-submersible heavy transport vessel White Marlin transported two times eight foundations from Asia to the port of Invergordon, Scotland.

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From there Boskalis’ crane vessel Bokalift 2 picked up the monopiles, with weights varying from 1,515 to 1,935 tons, prior to installing them in the field by means of vibro-driving as well as hydraulic impact driving.

In addition, the crane vessel Bokalift 1 installed the wind farm’s two offshore substation platforms, consisting of transition pieces, topsides and additional equipment.

The company said that during the execution of the Moray West project, a large part of its unique capabilities and specialisms were brought together. “By doing so, we could make a significant contribution to advancing the energy transition in Scotland, as the offshore wind farm will provide 882 MW of electric power, equivalent to the annual need of up to 1.33 million households once operational,” the company said.