Our substation at Harker, near Carlisle in Cumbria has been in service since the 1960s. As the equipment on site gets older, technology advances and demand on the electricity network increases, we will need to replace infrastructure at Harker Substation and increase its capacity.

The project consists of three main elements:

  • Replace and rebuild the existing substation by extending onto an adjacent field and reconfigure the short sections of the overhead lines into the extended substation
  • Add new conductors (the wires between the pylons) onto 8km of existing pylons between the Harker substation and the Scottish Border.
  • Refurbish existing pylons between the Harker substation and the Scottish Border byrenewing the existing wires and carrying out associated works.

Our plans allow us to provide the improvements required to maintain the existing electricity transmission system. They will also ensure the substation is prepared for future demand so it can continue to serve as a critical point of intersection on the UK energy network, connecting supplies between Scotland to England. This work is part of National Grid’s contribution to the Government’s target to achieve net zero carbon emissions by 2050. To meet these targets, more generation from renewable energy sources such as wind needs to be connected to the electricity network. Our proposed work will provide additional network capacity to accommodate this generation.

Our application to extend the substation to the north of the existing site has been approved by Cumberland Council. We are currently working to replace and rebuild the existing equipment.

You can find out more information by viewing our plans or email [email protected].

Compulsory Purchase Order

On 28th September 2023 National Grid Electricity Transmission Plc (“National Grid”) made The National Grid Electricity Transmission (Harker Energy Enablement Project) Compulsory Purchase Order 2023 ("The CPO”) to enable it to compulsorily acquire the land and rights necessary to construct and operate additional infrastructure and increased capacity from Harker Substation to the Scottish border. 

National Grid are continuing to engage with all known affected landowners and, where required, the occupiers, to discuss the required rights and proposals to deliver the project. We will continue to negotiate in a collaborative and positive manner to conclude a voluntary agreement. Where National Grid has a completed agreement in place, it does not expect to need to rely on the CPO. Our preference will always be to secure land rights on the basis of voluntary agreement with affected landowners/occupiers.

A copy of the notice confirming the making of the CPO has been served on all those with an interest in the land who were included in the CPO. It has also been published in the local newspaper and erected at intervals across the land included in the CPO.

A copy of the confirmed CPO and the maps that show the land included in the CPO are available.

Further detail on the compulsory purchase process can be found in the Department for Levelling Up, Housing and Communities Guidance on Compulsory Purchase Process and The Crichel Down Rules (July 2019), which is available to view and download for free online at GOV.UK.

If you’d like more information about the CPO, please contact National Grid’s appointed land agent Bruton Knowles using the contact details below:

Telephone: 0161 327 2771

Postal: NGET Harker Energy Enablement Project, C/O Bruton Knowles, 1 Roebuck Lane, Sale, Manchester, M33 7SY

Email: [email protected]  

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