Scottish Power is investing £36 million to help reduce the risk of trees and branches colliding with overhead power lines in Scotland, Merseyside and North Wales.

A total of nine maintenance contracts are now underway, which will see trees next to the 44,000km power line network managed over a three-year period.

ScottishPower has used fixed wing aircraft with 3D laser scanning technology to create detailed interactive models of its network, precisely highlighting the exact locations of individual trees beside its power lines. This allows the company to keep exact records of trees, plot their growth and plan maintenance.

Overall, the project will help create 200 jobs in the UK.

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Guy Jefferson, SP Energy Networks Distribution Director, said: "Managing trees next to power lines is one of the most important maintenance programmes we deliver to keep the lights on. It means that during severe winter storms we can reduce the number of properties affected by power cuts, and reduce the time to reconnect those who do. We will always need people on the ground to carry out the work, and we are pleased that our contracts will support hundreds of jobs in Scotland, the North West of England and North Wales.

"But chainsaws on the ground are now also supplemented by lasers in the sky, and our detailed 3D maps allow us to plot every tree next to our power lines and schedule required maintenance.  Our system also accounts for regional variations, such as the fact that trees in the North of Wales grow on average 2cm more every year than those in the south of Scotland, to make sure we are cutting the right trees at the right time.

"In exceptional storm events we will still see trees coming down and affecting power lines, as we have witnessed in the last few winters. However, because of significant investments in tree management we are seeing up to 25% less fault activity during poor winter weather than we did a decade ago. We aim to improve these figures even further in the coming years."

(LM)