Hinkley Point
Current construction activity
| Date from | Date to | Activity |
| February 2021 | Ongoing | New pylons near Stogursey |
Overview – Autumn 2024
The construction of a new substation at Shurton next to Hinkley Point C, where the new power station will connect into the UK electricity network, was completed and energised in June 2022.
Work on the connecting electricity lines into Shurton substation from the existing network is also nearing completion. This involves the alteration, testing and commissioning of three existing overhead electricity lines in the area.
Six existing pylons have been removed and 13 new pylons have been built, including the installation of the conductors (wires) in a process known as stringing.
The remaining activity is to complete the upgrading the existing overhead lines from 275,000 volts to 400,000 volts and connect into the southernmost section of new T-pylons at Horsey Levels, north of Bridgwater.
This connection will be via a new nine-armed junction pylon. In addition, at Horsey a new underground cable has been installed and energised. The new cable connects Shurton substation to Bridgwater substation. Installing the underground cable frees up space for new overhead lines into connect to the same junction tower.
Thank you from everyone working on the project for your patience and understanding as we progress with this important 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.
Hinkley Point timeline
Mid 2019 to mid 2023
Build Shurton substation
What we're doing:
Building a new substation within the boundary of the new Hinkley Point C power station complex, so we can connect the new power station to the electricity transmission network.
This was included in EDF Energy's Development Consent Order, which was approved by the Secretary of State in March 2013.
Early 2021 to late 2024
Modify existing overhead lines in the Hinkley Point area
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.
Modifying existing overhead lines in the Hinkley Point area, so they connect to the new Shurton substation at Hinkley Point C power station.
Building a short connection from Shurton substation to the existing substation at Hinkley Point B.
Mid 2022 to mid 2024
Upgrade Hinkley to Bridgwater overhead line
What we're doing:
Changing the wires on the existing pylons to upgrade the operating voltage of the line from 275,000 volts to 400,000 volts.