Hi,
I found the route on the Eirgrid website here:
https://cms.eirgrid.ie/sites/default/files/publications/All-Island-Transmission-System-Map-December-2023_0.pdf

Thanks for letting me know about the correct tagging, I'll update the tags.

Haha it had been bugging me for a while

Thanks, fixed now!

Thanks for the info, I only checked the esri clarity and not the regular imagery but I'll definitely use it in the future.