What is the primary purpose of the second Shetland HVDC link?

The second Shetland HVDC link aims to enhance the island's energy security, provide a reliable connection to the mainland grid, and facilitate the export of renewable energy generated on Shetland, primarily from wind farms, to the wider network.

What specific role will Reach Subsea play in this project?

Reach Subsea is responsible for conducting a comprehensive six-month offshore survey campaign. This survey is crucial for gathering detailed seabed data, which will inform the optimal route selection, engineering design, and safe installation of the subsea HVDC cable.

Why are HVDC links preferred for long-distance subsea power transmission?

HVDC technology is preferred for long-distance subsea power transmission due to its lower power losses over long distances compared to AC, its ability to connect asynchronous grids, and its capacity to transmit large amounts of power efficiently, making it ideal for connecting remote islands or offshore renewable energy hubs.

Offshore Energy · February 19, 2026 (Feb 19) · 1 min read

Reach Subsea about to begin six-month survey campaign for second Shetland HVDC link

Analysis

OilCyprus Editorial

Norway's Reach Subsea is set to commence a significant six-month offshore survey campaign for the second high-voltage direct current (HVDC) interconnector linking Shetland. This crucial infrastructure project underscores the ongoing global investment in robust subsea power transmission, vital for integrating renewable energy sources and enhancing grid stability. The campaign highlights the specialized demand for subsea services in developing critical energy infrastructure beyond traditional oil and gas.

Key Facts

Norway's Reach Subsea is preparing to initiate an offshore survey campaign.
The survey operation is projected to last for a duration of six months.
The campaign is specifically designed for the development of the second HVDC link to Shetland.
The offshore survey is anticipated to commence within the upcoming week.
The project location is situated offshore the Shetland Islands.
The HVDC link is a critical piece of energy infrastructure for the region.

Background & Context

High-voltage direct current (HVDC) links are fundamental for efficient, long-distance transmission of electricity, particularly from remote generation sites or between island grids and mainlands. For Shetland, these interconnectors are vital for both securing its energy supply and enabling the export of surplus renewable energy, primarily from its significant wind power potential. The development of a 'second' link indicates a strategic expansion of existing infrastructure, reflecting growing energy demands and the imperative to decarbonize power grids.

Market Impact

This project signifies continued robust demand for specialized subsea services, benefiting companies like Reach Subsea and the broader subsea contracting sector. The development of a second HVDC link will significantly bolster Shetland's energy security and grid resilience, facilitating greater integration of renewable energy into the wider grid. It also demonstrates the ongoing shift in subsea investment towards critical power infrastructure, a key component of the global energy transition, which could influence future project pipelines and technological advancements in the sector.

What to Watch

Following the completion of this extensive six-month survey, the project will likely advance to detailed engineering, procurement, and ultimately, the manufacturing and installation phases of the subsea cable. The successful execution of such projects sets a precedent for further investment in similar long-distance power transmission infrastructure, particularly as more offshore renewable energy projects come online globally.

Frequently Asked Questions

What is the primary purpose of the second Shetland HVDC link?: The second Shetland HVDC link aims to enhance the island's energy security, provide a reliable connection to the mainland grid, and facilitate the export of renewable energy generated on Shetland, primarily from wind farms, to the wider network.
What specific role will Reach Subsea play in this project?: Reach Subsea is responsible for conducting a comprehensive six-month offshore survey campaign. This survey is crucial for gathering detailed seabed data, which will inform the optimal route selection, engineering design, and safe installation of the subsea HVDC cable.
Why are HVDC links preferred for long-distance subsea power transmission?: HVDC technology is preferred for long-distance subsea power transmission due to its lower power losses over long distances compared to AC, its ability to connect asynchronous grids, and its capacity to transmit large amounts of power efficiently, making it ideal for connecting remote islands or offshore renewable energy hubs.

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