Tree trimming program reduces power outages

Asset Maintenance and Vegetation Manager John Dunn said the statewide program was an important part of summer preparedness plans.

“We cannot eliminate the risk of trees and other storm debris damaging the network in a severe storm or cyclone, but we do what we can to reduce the impacts on overhead powerlines and the communities they supply,” Mr Dunn said.

“With more than 170,000 kilometres of overhead powerlines across Queensland, there is an enormous amount of ground to cover, so we use satellite imagery, high-resolution aerial imagery and lidar technology, along with ground-based scoping to help identify and target any vegetation encroaching on powerline corridors.

“Trees are pruned based on growth rates and their proximity to powerlines – the higher the voltage, the greater the clearance required for the safety and reliability of the electricity network.”

Three natural disasters that impacted Queensland communities last summer left extensive damage in their wake – Ergon and Energex crews had to replace 220 power poles, 820 cross arms and and more than 200,000 metres of conductors and cables.  

Some of that damage was caused by street trees and plantings on private properties.

Local Councils and residents can help by following smart planting tips and choosing the right species in areas with overhead powerlines.

“You can use our online Plant Smart search to find powerline-friendly plants in your local government area before you hit the nursery or get the gardening gloves out.

“If you see any trees growing near powerlines, report them to Ergon if you’re in regional Queensland or Energex if you’re in the south-east.

“Do not attempt to prune any plants near powerlines yourself because electricity can pass through trees when branches or foliage touch the live wires.

“We use experienced vegetation management teams, including qualified arborists when more intricate jobs are undertaken, so please leave it to the professionals who are trained to work safely near powerlines,” Mr Dunn said.

Fallen powerlines can be hidden in tree branches and other debris, so everyone needs to stay alert when they are cleaning up storm debris or simply going about their business in the community.