Dun Law Extension to Galashiels 132kv reinforcements
Scottish Power Energy Networks (SPEN) claim that there is an increase in generation capacity on the network that requires connection to the electricity grid between Dun Law and Galashiels. They state that the network needs reinforcements to enable connection of this additional generation capacity to the grid and ensure that they can comply with their statutory and license obligations.
Proposed Infrastructure
The replacement overhead line would be carried on steel lattice towers (pylons).
The towers have a standard height of 30m but can be up to 42m where required to ensure electrical safety clearance above the ground.
The proposed infrastructure now includes:
- a 2.5km section of the line to be underground in the Airhouses area to reduce visual impact and enable safe crossing of the existing 400kV overhead line.
- a section of underground cable on approach to the proposed Gala North Substation.
- installation of three Cable Sealing End compounds to facilitate the transition between overhead and underground lines.
Preferred Route
Based on feedback received during the first round of consultation in summer 2024, changes have been made to the preferred route and proposed infrastructure. The proposed replacement line now includes overhead and underground power lines. The map below shows the updated preferred route plus an indicative placement of infrastructure.
Energy transmission integration
Grid connection applications have been submitted for wind farm and energy storage proposals near Torfichen Hill (Torfichen) in Midlothian and 9km north of Lauder (Glenburnie, formerly known as Longcroft).
SP Energy Networks is required to facilitate the connection of these generation projects to the electricity grid which are currently contracted to connect to the proposed Gala North Substation.
Routing work is currently ongoing for Torfichen and Glenburnie (Longcroft) with proposed connection to the cable sealing ends within the Dunlaw Extension to Galashiels 132kV Reinforcements proposals.
READ MORE about the Dun Law Extension project on the developer’s website.