Green Marine UK Looks to Support UK’s Subsea Power and Communications Network

Offshore specialist Green Marine is expanding its capabilities to support the UK’s vital intercountry power and communication transmission cable infrastructure.

Cable networks form the backbone of the nation’s energy distribution system, playing a critical role in the transfer and balancing of power and communications across regions (both domestic and international). A significant portion of these are high-voltage subsea cables, including the Western HVDC link cable which Green Marine has previously serviced.

However, these extensive domestic and international cable networks remain vulnerable to environmental threats, accidental damage and other geopolitical tensions.

This risk has been underscored by recent events—most notably the major power outage impacting millions across Spain, Portugal, and parts of France. Traced to a fault in a key interconnector, this incident highlighted the vulnerabilities of Europe’s energy grid and the cascading consequences of failure.

Key intercountry cables supporting the UK include the IFA and IFA2 (UK–France), BritNed (UK–Netherlands), Nemo Link (UK–Belgium), North Sea Link (UK–Norway), and the recently commissioned Viking Link (UK–Denmark). Further vital UK links include SSEN Distribution's subsea cable network connecting the Scottish mainland to 60 islands and the upcoming Eastern Green Link 1 and 2, connecting Scotland and England. Green Marine UK has further been involved in