TenneT hires Next Geo for North Sea wind farm ordnance surveys

TenneT TSO contracted Next Geosolutions Europe Jan. 10 to conduct a marine UXO survey in the Doordewind offshore wind development area of the Dutch North Sea.

This will identify/pinpoint magnetic anomalies that may be associated with unexploded ordnance that might impact the installation of new offshore infrastructure.

In addition, Next Geo will perform a similar UXO survey in the Nederwiek offshore wind area. This work will begin during the current quarter, while activity in the Doordewind area will take place between the first quarter and fourth quarter of 2026.

NextGeo acquiring seafloor data for North Sea HDVC offshore wind connections project

TenneT contracted Next Geosolutions Europe Dec. 16, 2024, to perform nearshore and offshore geophysical and geotechnical surveys in the Dutch Exclusive Economic Zone of the North Sea.

This is for TenneT’s "2GW Program" initiative, which involves developing new HVDC grid connections to integrate 2 GW of offshore wind energy into Europe’s electrical grid by 2031.

During the end of first-quarter and fourth-quarter 2025, NextGeo will acquire a marine route survey to support the design of the cable connections that will allow facilities in the Doordewind wind area to deliver renewable energy to the onshore grid. 

It will also conduct geophysical investigations and geotechnical sampling over a 21,000 ha-plus area.

In the Netherlands, Buss Ports will act as service provider at the wind turbine marshalling port Buss Terminal Eemshaven for Ecowende’s construction of the Hollandse Kust West (Lot VI) offshore wind farm.

The site will provide more than 200,000 sq m of storage and handling capacity for the various components needed to build the wind farm, namely 52 sets of Vestas V236 turbines, nacelles, blades and towers, with a combined weight of more than 100,000 t.