Microsoft has submitted plans to develop three subsea cables connecting Ireland and the UK. These cables—Tuskar, SOBR1, and SOBR2—aim to enhance connectivity between the two countries, bolstering data infrastructure for businesses and consumers alike.
Overview of the Proposed Subsea Cables
Tuskar Cable
The Tuskar cable is proposed to run from Kilmore Quay in County Wexford, Ireland, to Newgale on the Pembrokeshire Coast of Wales. Microsoft’s application includes plans for a marine survey along routes through the Celtic Sea and St. George’s Channel, ensuring the feasibility and environmental compatibility of the project.
SOBR1 Cable
SOBR1 is planned to connect Dublin Bay in Ireland to Anglesey on the northwest coast of Wales. This cable aims to reinforce connectivity in a region already vital for subsea cable landings.
SOBR2 Cable
SOBR2 is set to link Portmarnock and/or Malahide in Dublin County, Ireland, to Abergele on Wales’ northern coast. This addition highlights Microsoft’s focus on expanding data exchange points between Ireland and the UK.
Strategic Importance of the Cables
Strengthening Ireland’s Subsea Infrastructure
Most subsea cables in Ireland land on the east coast near Dublin or the west coast around Mayo and Galway. These new cables will provide alternative routes, increasing capacity, resilience, and redundancy in Ireland’s data connectivity.
Supporting Microsoft’s Regional Operations
Microsoft operates more than a dozen data centers in and around Dublin, with additional campuses planned, such as a site in Naas, County Kildare. In Wales, the company leases capacity at Vantage’s Newport campus and is developing its own nearby campus. These cables will directly support these facilities’ operational needs.
Other Major Subsea Cables Involving Microsoft
AEC-1 and Exa Express
Microsoft owns or leases significant capacity on multiple subsea cables. For example, the AEC-1 cable, launched in 2016, connects Ireland to the US. Similarly, the Exa Express system links Ireland, the UK, and Canada, enhancing transatlantic connectivity.
Amitie Cable
The Amitie cable, launched in 2023, connects the US, the UK, and France. Although it does not land in Ireland, it represents Microsoft’s continued investment in global subsea infrastructure.
Industry Collaboration and Future Plans
Collaboration with Other Providers
Microsoft’s applications for the Tuskar, Beaufort, and SOBR1/2 cables reflect its proactive approach to enhancing regional connectivity. Notably, the company has collaborated with providers like Aqua Comms, Meta, and Vodafone on other cable projects.
Redundancy and Resiliency
In a submission to an Irish government consultation, Microsoft emphasized the importance of developing diverse and redundant cable routes for greater resiliency. This approach ensures continuous connectivity despite potential outages.
Related Developments by Amazon
Amazon, a major competitor, has also filed to develop its own subsea cable linking Ireland to the US. Additionally, Amazon is working with Vodafone on the Beaufort cable, connecting Wexford, Ireland, to multiple UK locations. These parallel efforts underline the growing demand for robust data infrastructure in the region.
FAQs
Why is Microsoft developing subsea cables between Ireland and the UK?
Microsoft’s new cables aim to enhance data connectivity, support its data center operations, and improve network resiliency in the region.
What are the routes of the proposed cables?
- Tuskar: Kilmore Quay, County Wexford, to Newgale, Wales
- SOBR1: Dublin Bay to Anglesey, Wales
- SOBR2: Portmarnock/Malahide to Abergele, Wales
How will these cables impact Ireland’s connectivity?
The cables will increase Ireland’s data capacity and provide alternative routes, reducing reliance on existing subsea cables and improving network redundancy.
Are there environmental concerns with subsea cable projects?
Microsoft’s applications include plans for marine surveys to ensure the proposed routes comply with environmental regulations and minimize ecological impact.
Who are Microsoft’s partners in subsea cable projects?
Microsoft collaborates with companies like Meta, Aqua Comms, and Vodafone on various cable initiatives, including the Amitie and Beaufort cables.
