Overview – Summer 2023
Located in the centre of the new Hinkley connection route, the new 400,000 volt substation at Sandford is now energised.
The new substation has been constructed as part of the £900 million Hinkley Connection Project, a new 57 kilometre high-voltage electricity line that will connect six million homes and businesses to new sources of home grown, low carbon energy and help the UK to meet its net zero by 2050 target.
High-voltage electricity is now passing through the new substation, and the connecting T-pylons and 8.5 kilometres of underground cables through the Mendip Hills Area of Outstanding Natural Beauty.
In the same area, the 68 T-pylon structures between Sandford substation and Portbury were completed, with the final diamond shaped insulators lifted into place on a pylon between Yatton and Kenn in July 2023. We’ll complete hanging the wires between the T-pylons early in 2024, ahead of their energisation at the end of the same year.
The work to modify and connect the existing 132,000 volt line from Weston-super-Mare to the new substation is complete. This work reinforces 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.
We are preparing for the opening of a new and safer Strawberry Line path. Our teams are in the final stages of the legal process whereby National Grid hands the path over to North Somerset Council permanently. Once this has taken place, the Council will make an announcement of when this new section will be open.
Thank you from everyone working on the project for your patience and understanding as we progress with this vital work to connect six million homes and businesses to new sources of homegrown, low carbon energy, and help the UK meet its net zero ambitions.
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Take a look at our detailed map