Saipem 7000 Leaves Seagreen for Maintenance, Wind Turbine Installation on Stand-By

21 out of the 114 Vestas V164-10.0 MW turbines have been installed at the 1.1 GW Seagreen offshore wind farm, Scotland’s largest and the world’s deepest fixed-bottom offshore wind farm.

The turbines have been installed on all available 21 jacket foundations, and the installation activity will recommence when further foundations are installed, according to the project’s latest Notice of Operations.

The heavy-lift vessel Saipem 7000 is in charge of transporting and installing the wind farm’s jackets. AIS data shows that Saipem 7000 is currently in Stavanger, Norway.

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”The foundation installation has been planned around campaigns of work. Campaign 2 is planned for later this month when the S7000 will return to site following a scheduled maintenance outage,” a spokesperson for SSE Renewables, the developer of the project, told offshore WIND.

The turbine installation campaign involves Cadeler’s jack-up Wind Orca, which recently replaced her sister vessel Wind Osprey on the project, the service operation vessel Acta Centaurus, the crew transfer vessel, HST Harri.

Cable Installation Campaigns

Work to install the wind farm’s three export cables is ongoing both onshore and nearshore, with Nexans Aurora expected to return to the site later this month to install the second of the three export cables.

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Seaway 7’s Seaway Phoenix is expected to arrive at the site on or around 17 April to start installing the wind farm’s remaining inter-array cables. The installation support vessel Siem Stingray will support Seaway Phoenix during the campaign.

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Boulder clearance operations are also continuing at the site. The boulder clearance vessel Sartor, equipped with an ROV and integrated tine grab tool, will relocate boulders considered a hazard to the inter-array cable routes and areas surrounding the wind turbine locations.

Situated around 27 kilometres off the Angus coast, the GBP 3 billion Seagreen wind farm is a joint venture between SSE Renewables (49 per cent) and TotalEnergies (51 per cent).

At 1.1 GW, Seagreen is Scotland’s largest renewable energy project and one of the biggest private investments in Scottish infrastructure. The wind farm will be capable of generating around 5,000 GWh of renewable energy annually once fully commissioned in 2023.

SSE Renewables is leading the development and construction of the Seagreen project and will operate Seagreen on completion for its expected 25-year lifetime

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NOTE: The original article has been amended. The owner of Wind Osprey and Wind Orca is Cadeler, and not Fred. Olsen Windcarrier as originally stated.

Photo: SSE Renewables