Next Geosolutions

NextGeo completed offshore route survey activities for transmission system operator TenneT across multiple Dutch North Sea wind zones, including the export cable routes associated with IJmuiden Ver Gamma. As IJmuiden Ver Gamma-A and IJmuiden Ver Gamma-B are planned to connect via TenneT’s IJmuiden Ver Gamma offshore grid connection, route and corridor survey work for the IJmuiden Ver Gamma export cable routes is directly relevant to the grid interface for the Gamma-B project. The scope was described as covering offshore survey operations for the export cable routes and was explicitly noted as “non-UXO”. NextGeo acquired survey data using a mix of geophysical and geotechnical techniques, supported by a fleet comprising six offshore vessels, six nearshore vessels, and three tidal vessels. The campaign was reported to have acquired data over more than 37,000 hectares, indicating a large-area corridor approach suitable for export cable route engineering, route optimisation, and identification of seabed and shallow subsurface features that can affect cable installation and burial. The source also stated that TenneT originally awarded NextGeo the contract for cable route surveys on the relevant wind zones in June 2020, and that NextGeo had completed the final reporting phase by May 2022. The activity sits within the development-stage survey and engineering preparation for the offshore grid connection.