The extension to the existing substation involves a new access road, a compound area, and associated infrastructure. This proposed development will support the Glenmuckloch to Glenglass 132kV reinforcement project, as well as provide capacity for Glenmuchloch and Sanquhar 2 wind farms.

Working alongside Kaya Consulting and Mott MacDonald, LUC's Planning, Ecology, Heritage, Landscape Planning and geospatial teams, and GIS teams contributed towards various elements of this project which included:

• Preparing and submitting an Environmental Impact Assessment screening request
• Undertaking online pre-application consultation
• Producing a Public Accounts Committee report
• Forming a Design and Access Statement
• Collating an environmental appraisal report

Technical appendices formed part of the supporting documents in the application to Dumfries & Galloway Council.

On 11 October 2023, SP Energy Networks took the proposed development to the planning committee. The council unanimously agreed the proposals, subject to conditions.