TenneT has selected NjordIC to provide UXO consultancy services for the Doordewind 1 & 2 Grid Connection System, part of the offshore HVDC programme supporting the Netherlands’ ambition to deliver 21 GW of offshore wind capacity.

Under the contract, NjordIC will deliver a full-scope package spanning survey preparation, offshore survey execution support, and geophysical data analysis. The export cable corridor runs about 112,000 m offshore and continues through a 14,000 m Wadden Sea section, requiring compliance with Dutch CS-OOO requirements and careful interface management across sensitive marine environments.

NjordIC will act as an independent UXO consultant and CS-OOO A-scope holder during survey execution and data evaluation. The scope includes supervision and quality control across beach, tidal, nearshore, and offshore environments, preparation and submission of CS-OOO-compliant documentation, independent processing and interpretation of raw magnetometry data, and delivery of the Master Target Lists for Doordewind 1 and 2 to support safe cable installation planning.

The company said its newly established Remote Data Centre will support high-volume processing to strengthen QA/QC and reduce false positives, targeting milestone delivery ahead of 31 December 2026 deadlines.

Doordewind is planned about 77,000 m off the Netherlands’ north coast and has been described as the first offshore wind development planned to connect to Eemshaven. The zone covers roughly 580 sq km and is planned for a 4 GW total capacity, split into two 2 GW sites. The first site is expected to be auctioned in 2027, with commissioning targeted for 2032.