Deep has been selected to carry out annual offshore cable integrity surveys for TenneT Netherlands between 2026 and 2029. The surveys will support the safe and reliable operation of existing subsea cable infrastructure by providing insight into seabed conditions and cable integrity and protection
Deep will use hydrographic and geophysical techniques to determine the level of seabed cover
above the cables, identify objects and seabed features that could pose a risk to their integrity.
Where required, selected findings will also be visually inspected to provide additional
information for assessment.
The resulting data will provide an accurate and up to date picture of conditions of their offshore
cable infrastructure, supporting TenneT’s ongoing monitoring and maintenance activities, early
identification of potential issues and continued compliance with applicable permit requirements.
Maarten Abbenhuis, COO of TenneT said, “As we continue to connect more offshore wind farms
to the high-voltage grid and install more interconnection cables between countries, offshore
transmission plays an increasingly important role in the energy infrastructure. Regular monitoring
is essential. Periodic surveys allow TenneT to assess conditions along its cable routes, monitor
changes over time and identify potential risks, all to prevent outages. The monitoring services of
Deep will play an important role to maintain the high reliability standards of the offshore grid
infrastructure.”
“We are proud to contribute to the safe and reliable operation of TenneT’s offshore grid,” says
William Waggeveld, Commercial Director at Deep. “Regular monitoring is an essential part of
managing subsea infrastructure, and this project allows us to put our survey expertise to work on
assets that are critical to the Dutch renewable energy system.”
The project forms part of Deep’s activities in offshore hydrography and geophysics, supporting
the inspection, maintenance and management of critical marine infrastructure in the renewable
sector.
