New overhead line between Sandford and Seabank substations

We started work to build the northern section of the Hinkey connection between Sandford and Seabank substations in May 2021.

We’re using T-pylons for part of the route between Sandford and Portishead, and new traditional lattice pylons through Avonmouth to make the final connection into Seabank substation.

Piling foundations

Our contractor, Balfour Beatty, is carrying out the piling which involves driving concrete and steel piles into the ground for building the foundations of the new pylons.

Piling at each site takes approximately one week and we publish a monthly schedule to show the locations in which we’re working. We expect all pylons to constructed and the wires in place by 2023.