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  • Submarine Electricity Cables

    Delivering power to fifty nine Scottish Islands

  • About us

    We are part of Scottish and Southern Electricity Networks, operating under licence as Scottish Hydro Electric Power Distribution plc (SHEPD). We are responsible for monitoring the efficiency and integrity of the submarine electricity cable network which provides power supplies from the mainland to fifty nine Scottish Islands, including the Inner and Outer Hebrides, Arran and the Orkney Islands.

    We also serve the Shetland Islands, which run as a separate electrical system without a connection to the mainland.
    To ensure these island communities continue to receive a safe and reliable source of electricity we run a programme of inspections and when necessary install new cables to replace those coming to the end of their operational life.

    A significant programme of investment is currently underway to ensure the fifty nine Scottish Islands who depend on us continue to receive a safe a reliable supply of electricity through our submarine cables.

    Find out more about how we manage our Submarine Electricity Cables Programme.

  • Select what area you are searching for

    Find a project Shetlands North coast / Orkney West Highland Outer Hebrides Argyll
  • New Works for 2021

    We are engaging with a number of organisations, stakeholders and communities as we plan our programme of works for 2021 and beyond. 

    Upcoming Works
  • Frequently Asked Questions

    Find out the answers to all of the common FAQs that have arisen as part of the initial consultation process.

    FAQs
  • Global Symphony ship

    About Us

    We're responsible for monitoring the efficiency and integrity of the submarine electricity cable network which provides power supplies from the mainland to fifty nine Scottish Islands.  

    About Us
  • Image of our submarine ships

    Video Library

    Check out our videos to see the work that goes into installing and decommissioning our subsea electricity cables.

    Video Library
  • Upcoming Events

    Hoy North & Centre: Installation of two 33kV electricity cables

    Thursday April 29 from 14:00 - 18:00

    We will shortly begin the replacement of two 33kV submarine electricity cables which run between the Orkney mainland and Hoy North and Hoy Centre.

    The installation of the cables from Quoyness on Hoy to Cleftrain on Mainland Orkney is critical for a safe and reliable supply of electricity to our customers.

    As part of the development of this subsea cable installation project, we are seeking the views of local communities and stakeholders.

    In order to register for the event, please email the address below:

    submarinecables@sse.com

  • News and Views

    We are to proceed with replacement cable between Skye and Harris

    Following extensive consideration and stakeholder engagement, we have confirmed our decision to proceed with the replacement of the 33 kilovolt cable which runs from Ardmore, Skye to Beacravik, Harris.

    Skye

    We are to replace subsea cable connecting Lewis and Harris to the Scottish mainland

    Following a fault to the 33 kilovolt cable connecting Lewis and Harris to the Scottish mainland, we can confirm we are starting a project to undertake an end-to-end replacement of the subsea cable.

    Harris