Planning and assessing routes for electrical transmission infrastructure.

The routeing of electricity transmission infrastructure, particularly overhead lines, is a complex process, requiring a balance between engineering requirements, economic viability, and the environment.  These projects generate considerable public interest, particularly in relation to local concerns such as visual amenity.

We carry out routeing studies to identify the most environmentally, technically and economically viable routes for high-voltage transmission lines and also siting studies for the accompanying substations. We engage with the public and other stakeholders and take the conclusions on in the Environmental Impact Assessment (EIA) stage. By treating the EIA as an iterative design process, we aim to mitigate adverse environmental impacts from the outset. Our teams provide:

Our routeing and EIA services include work for SP Energy Networks in relation to the Dumfries & Galloway Strategic Reinforcement Project, identified by the Scottish Government as a national development priority.

In recognition of our expertise, we were commissioned by National Grid to identify priorities for visual mitigation, required by Ofgem, across England and Wales; a project called Visual Impact Provision. We carried out a comparative assessment of the landscape and visual impacts of existing electricity infrastructure within National Parks and Areas of Outstanding Natural Beauty across England and Wales. We’ve since been commissioned for a similar project across protected landscapes in Scotland.

For environmental or planning advice on projects of this nature, please contact Rebecca Knight, Sam Oxley, Joanna Wright or Diana Manson.