Skip to main content
ScottishPower |

Select Language:

ZO-ZR- XF Overhead Line Route Major Refurbishment

Ensuring the transmission network in central and southern Scotland continues to play a central role in supporting the nations economy is a priority at SP Transmission which our record levels of investment confirms.

The major projects team have recently commenced the major refurbishment of ZO ZR XF overhead lines which operate at 400 kV between Neilston, Devol Moor and Windyhill substations in the west of Scotland.

ZR May1

Involving over 50 towers, the programme of work on these key transmission lines which are a vital part of our national infrastructure will include each tower being inspected and receiving any identified maintenance along with the conductors and insulators being renewed.

These lines have been serving the network for decades and the £18 million project will make certain they continue to play there part in transporting energy around our area and beyond as well as supporting the move to clean energy and realising net zero. The project is scheduled to be completed in March 2023.

The programme and nature of work will be challenging for the team involved as in addition to exposed locations, the line crosses a number of waterways and roads.


The lines are situated in generally rural settings and has involved significant work by SPEN Wayleave Officers agreeing access arrangements with the various land owners.

SPENs refurbishment and modernisation projects ensure the transmission network continues to provide a safe and secure supply as we move to a more sustainable environment.

Contact Information

Should you require any further information please make contact via the following phone number or email address:

Community Liaison phone number – 07516461129
Community Liaison email –
Press Enquiries – 0141 614 4535



Hi! I'm the SP Energy Networks System Agent, can I help you?