Sandford

Overview – Summer 2022

We started work to build the new substation near Sandford with our contractor, Siemens, in April 2020.

The substation will be fully energised in late 2023. Located in the centre of the new Hinkley connection route, the substation will connect low carbon energy from Hinkley Point C, and will reinforce the security of the electricity network in the South West following the removal of 67 kilometres of 132,000 volt overhead wires and 249 pylons in total from the Somerset landscape.

In July 2021, we started work to modify the existing 132,000 volt power line from Weston-super-Mare. We’ve completed building nine new lattice pylons north-west of the substation towards Puxton and are working to install 700m of underground cable, which together will connect the existing Weston-super-Mare line to the new substation.

Thank you from everyone working on the project for your patience as we continue our work to deliver electricity safely, efficiently, and reliably, and support the UK’s ambition to achieve net zero by 2050.

Contact our community relations team to register for project updates direct to your inbox.
 

Take a look at our detailed map

Sandford timeline

April 2020 to late 2023

 

Build Sandford substation

What we're doing:

  • Advance planting and landscaping.

  • Installing a temporary construction compound adjacent to the site of the new substation.

  • Building a new substation, just north of the A368, in order to maintain local electricity supplies in the area.

Early 2021 to mid 2023

 

Modifications to the existing 132,000 volt overhead line to Weston-super-Mare

What we're doing:

  • Building temporary entrances and access roads to allow construction traffic to enter site from the local highway. You can find more information on our construction information page.

  • Installing a temporary construction compound north of Sandford substation.

  • Building a new connection from Sandford substation to the existing overhead line that goes to Weston-super-Mare. It will be made up of 700m of underground cable and nine new lattice pylons. This is to ensure local electricity supplies are maintained.

  • Removing 1.5 km of the existing overhead line to Weston-super-Mare that runs north-west from Sandford near Puxton.

This work will be done by Western Power Distribution.

Early 2021 to mid 2025

 

Build a new 400,000 volt overhead line

What we're doing:

  • Building temporary entrances and access roads to allow construction traffic to enter site from the local highway. You can find more information on our construction information page.

  • Building a new overhead line from Sandford substation to Seabank substation (approximately 31.2 km).

  • We will use T-pylons in this area.

Early 2021 to mid 2025

 

Remove existing 132,000 volt overhead line

What we're doing:

  • Removing Western Power Distribution’s overhead line from the A368 in Sandford to Avonmouth.

Late 2021 to late 2023

 

Modifications to the existing 132,000 volt overhead line to Churchill

What we're doing:

  • Building a new overhead line using wooden poles (285m) from Sandford substation to the existing overhead line that goes to Churchill, to ensure local electricity supplies are maintained.

  • Removing approximately 550m of the existing overhead (lattice pylons) to the south Sandford substation.

This work will be done by Western Power Distribution.