Peterhead Substation Upgrade

About the Project

To support the transition to a low carbon energy system and ensure a secure electricity supply, significant investment is required in the electricity transmission network across the north east of Scotland. 

To address this, a new 400kV/275kV SGT building is proposed at Peterhead. This will form part of a wider programme of reinforcement works, helping move large volumes of renewable energy across the network and supporting Scotland’s transition to cleaner energy.

The proposed works for Peterhead Substation Upgrade include:

• Installation of a new 400/275kV SGT together with the installation of new SGT building and associated civil works.
• Installation or relocation of 400kV Overhead Line (OHL) and towers necessary to connect new supergrid transformer.
• landscaping and biodiversity requirements.

Why is the Project Required?

The extension works are necessary to provide sufficient capacity for connection to the wider transmission network via the upgraded 400kV OHL which will be upgraded under another project prior to connection. In order to facilitate this connection, a physical extension or new satellite site is required in or around the existing Peterhead Substation to accommodate the additional electrical equipment. 

Beyond 2030

To deliver energy security and net zero, further additional investment in new low carbon electricity generation and the enabling electricity transmission network infrastructure will be required across Great Britian, including the north of Scotland. 

In March 2024, the independent National Energy System Operator’s (NESO) published its ‘Beyond 2030’ report, which confirmed the need for several new, replacement and upgraded transmission infrastructure projects in the north of Scotland. In December 2024, Ofgem approved the next phase of regulatory funding to take these projects through the development phase. This project is part of these additional investments and will soon be subject to extensive public consultation and engagement to help inform the development.

Find out more about Beyond 2030 projects

Community Engagement

Throughout the life of our projects, we aim to work positively with local communities and keep people informed about what we are doing. This is particularly important when we are developing a proposal and we want to understand what local people think about our plans.

We endeavour to take the time to discuss proposals with local community councils, encourage engagement from the wider community and listen to the feedback we receive.

We will do our best to answer any questions and address issues or concerns that are raised with us.

When our project progresses into construction, we will continue working closely with the local community to ensure that our work has as little impact on the lives of those living and working in the area and as many long term positive effects as possible.

How we’re embracing artificial intelligence (AI)
We intend to use AI to assist our experienced teams in the analysis of your feedback, so we can categorise key points raised more quickly. You can learn more about how we’re utilising AI on this dedicated web page.