Yvan Gelbart
,
Lead Analyst
Author
, Published on
September 19, 2025
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On October 26, Heerema’s semi-submersible heavy-lift vessel Balder installed the first wind turbine jacket foundation at EDF Renewables’ Neart na Gaoithe offshore wind farm. Balder arrived on location in early October.

Following the arrival of the first 10 steel jackets on site, Saipem, through subcontractor Heerema, lifted the first steel wind turbine jacket into place, lowering it onto pre-installed piles on the seabed.
Spinergie analysis indicates that the 1978-built Balder has been predominantly employed in oil and gas operations since 2016. This is its first wind installation campaign in that time frame.
Solstad’s 2015-built CSV Normand Navigator concluded the installation of the jacket with subsea grouting and inspections.
The 450 MW capacity Neart na Gaoithe is situated 15.5 km off the east coast of Scotland in the outer Firth of Forth. The first turbines on the wind farm are expected to be operational in mid-2023, with completion scheduled for 2024.

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Analysis of the subsea vessel fleet including its resurgence of interest and expectations for the future.
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Maersk’s Sturgeon WTIV was set to be a pioneering Jones Act-compliant vessel for the US offshore wind market. Yet, with the domestic market faltering under the new administration the project was terminated just before delivery. Is this a sign of the wind market replicating the offshore rig glut of the mid-2010s? Spinergie’s Lead Analyst, Yvan Gelbart, presents his analysis.