TenneT and NKT Jointly Explore Offshore Cable Decommissioning

October 19, 2026 · 14 hours ago

Managing Editor

Offshore cable decommissioning is technically feasible and can support CO2 reduction, but the economics aspect depends on a number of factors, a joint study by TenneT Netherlands and NKT concluded.

TenneT Netherlands and NKT worked together on exploring the future of offshore cable decommissioning, focusing on offshore cable systems in the Netherlands and Germany and what responsible end-of-life management could look like.

“The initiative reflects the shared ambition of TenneT and NKT to strengthen circular practices in the energy sector. Together, we have explored how offshore power cables can be managed responsibly at the end of their operational life, with a strong focus on circularity and technical knowledge development,” said Hedvig Pollak, Senior Sustainability Specialist at NKT.

The study examined multiple perspectives, including recycling, environmental considerations such as biodiversity and carbon assessments, logistics, regulatory requirements and operational practices.

According to Gwenn van der Schee, Sustainability Manager at TenneT Netherlands, the study highlighted the importance of considering end-of-life requirements from the earliest stages of infrastructure development, helping to create more sustainable solutions for future offshore projects.

“The study also demonstrated that offshore cable decommissioning is technically feasible and can support both circularity objectives and CO2 reduction. The economic attractiveness may vary depending on factors such as the materials used, recycling value, processing costs and local market conditions. As a result, the most suitable approach must be assessed on a project-by-project basis,” Van der Schee said.

The project was carried out by a team of TenneT trainees, supported by subject matter experts from both companies.

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