SHETL – Shetland Islands HVDC Link – UK - Project Profile

SHETL – Shetland Islands HVDC Link – UK - Project Profile


"SHETL – Shetland Islands HVDC Link – UK - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.

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Scottish Hydro Electric Transmission Limited (SHETL), a subsidiary of Scottish and Southern Energy Power Distribution Limited, is undertaking the Shetland Island HVDC Link project in Scotland, the UK.

The project involves the construction of a 600MW high voltage direct current (HVDC) subsea link connecting Upper Kergourd link in Shetland Islands and Blackhillock on the Scottish mainland. The link comprises a single circuit of 278km subsea and 8km onshore underground cable and includes AC/DC converter stations at each end.

It includes the laying of underground HVDC cables, and the construction of a substation and other infrastructural facilities.

WSP has been appointed has been appointed as the environment consultant.

Following extensive public consultation, a planning application for the converter station at Upper Kergord was submitted to Shetland Islands Council in July 2009. Outline consent was granted in February 2011 and SHETL has now submitted a further application relating to the matters which were specified in the conditions of that consent.

Preferred site has already been identified for HVDC switching station and the onshore cable route has also been finalized. SHETL is in the process of securing final planning consent.

In September 2015, six potential sites were selected for further evaluation for the construction of a switching station and were presented for local public exhibition.

In March 2015, SHETL secured full development consent for the project.

In December 2016, SHETL has appointed Telesecure Ltd as environment consultant.

Planning activities are underway and SHETL is awaiting approvals from the UK and Scotland government. Construction works are expected to commence in the December 2017 with scheduled completion in December 2021.


The project involves the construction of a 600MW high voltage direct current (HVDC) subsea link connecting Shetland Islands to Scottish mainland via Moray Firth offshore hub in the UK.

The US$1100 million project includes the following:

1. Laying of underground HVDC cables

2. Construction of a 600MW substation

3. Construction of a 278km single circuit subsea cable link

4. Construction of a 8km onshore underground cable link

5. Construction of a HVDC converter station

6. Construction of transmission related facilities

7. Installation of safety systems

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