Contracts for Ossian Wind Farm surveys to Fugro & Ocean Infinity

By: Chloe Emanuel 13/03/2023 SSE Renewables

General Windfarms

The consortium behind Ossian floating offshore wind farm has awarded the contract for geotechnical investigations to two contractors: Fugro and Ocean Infinity.

The Ossian project is being delivered by a partnership of Scottish renewable energy developer SSE Renewables, Japanese conglomerate Marubeni Corporation and Danish fund management company Copenhagen Infrastructure Partners (CIP).

Set to be located across 858sq km of seabed in waters off the east coast of Scotland, the project could power up to six million homes and offset up to 7.5 million tonnes of carbon dioxide emissions each year.

Fugro will focus on downhole geotechnical sampling and in situ cone penetration testing, while Ocean Infinity will focus on the seabed scope which will include shallow vibro-cores and deep push seabed cone penetration tests.

SSE Renewables, Offshore Geotechnical Technical Authority, John Davidson said: “This is a major step forward in the exploratory work needed to make the Ossian Wind Farm a reality. After a competitive tendering process, it was clear that Fugro and Ocean Infinity have the skills, equipment, knowledge and expertise to embark on a survey of this scale.
The Ossian team look forward to working with both companies and to realising the geotechnical investigation results which will be integral to the progression of what would be a world-leading floating wind project.

Fugro plans to use its purpose-built geotechnical drilling vessel, the Fugro Scout. The ship is equipped with ultra-deepwater drilling technology and onboard systems which enable the vessel to safely carry out complex marine geotechnical operations.

Meanwhile, Ocean Infinity plans to use its vessel, the Stril Explorer which is a multi-purpose support vessel with seabed geotechnical equipment onboard.

Both surveys are predicted to commence this Spring. Ocean Infinity expects to have completed its survey work by the end of May while Fugro expects its downhole scope survey to be completed at the start of July. The surveys will significantly improve the seabed understanding across the project site by ground-truthing the already acquired geophysical information. This will subsequently enable design development activities to progress such as anchor in-place and installation design.

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