Offshore Site Preparation

Statnett’s 2025 article on the Fensfjord cable notes that challenging seabed conditions required reinforcement of the seabed with concrete mattresses and plastic mats ahead of cable installation. Nexans’ 29 Aug 2025 news release adds that the seabed was strengthened with 180 concrete mattresses and mats in advance of the summer 2025 cable-laying campaign. Together these sources confirm that the planned offshore site-preparation campaign (mattress installation) was carried out as part of the 2025 construction season, even though they do not give an exact date, so this event is confirmed in 2025.