Skye 132kV Reinforcement Project, Scotland

We are delivering the first phase of the Skye 132kV reinforcement project for SSEN Transmission, upgrading the transmission network to provide renewable energy and securing power for generations.  

Balfour Beatty has been awarded a £32 million contract for the detailed design and development phase of a new 137km, 132kV double circuit overhead line and 15km of underground cabling between the existing Fort Augustus and Edinbane substations. The route passes through some of the most challenging terrain in Scotland, overcoming some major areas of engineering complexity to safely deliver the civils, overhead line and underground cabling aspects of the project. 

These works are essential to provide electrical reliability to Skye and the Western Isles via subsea cables and will reduce the reliance on diesel generation.  

Once complete, this project will ensure the supply of secure, renewable electricity to thousands of homes and businesses across the Hebrides and West Highlands and supports the UK and Scottish governments’ transition to Net Zero. 

Leveraging a digital-first approach  

Working collaboratively with our innovation team, we will implement and trial a range of digital solutions to enhance efficiency, and to improve safety and sustainability. So far, we are utilising the following tools: 

  • Innovative software such as RoadAI to carry out multiple surveys and grade roads with minimal disruption. 

  • ArcGIS, Insta 360 cameras and Openspace and BIM360 software to design InfraWorks cut and fill to determine earthwork quantities. 

  • Drone-based ground penetrating radar survey to capture peat depth data and identify the peat type to understand subsurface conditions. 

  • Multispectral cameras for ground conditions surveys. 

 

Protecting and enhancing the environment 

Our project team will draw on the expertise of our Environmental and Sustainability team to ensure effective environmental planning, even in challenging conditions like remote locations and adverse weather. They will develop appropriate sustainability initiatives and management plans to reduce carbon emissions and minimise environmental impact. Initiatives include: 

  • Considering ecological and environmental requirements, from peat management to wildlife translocation and contributing to SSEN Transmission’s biodiversity net gain targets. 

  • Collaborating with local communities to minimise disruption wherever possible, including introducing a ‘Skye workers’ village’ to provide dedicated site accommodation for our teams. 

  • Considering the cultural heritage features in this area of Scotland, making sure we work alongside an archaeological advisor and outline mitigation strategies to avoid damage or impact the significance of any cultural heritage assets. ​ 

 

Creating local employment opportunities 

During this project, we aim to positively impact the local community by providing employment opportunities. At its peak, we will employ 650 people including 32 apprenticeships and graduates. We will also host STEM events, attend local career fairs, and participate in The Highland Council mentoring scheme.