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Canberra is commonly known as the bush capital of Australia, but our beloved trees and vegetation can be a hazard if they are growing too close to powerlines.

This can result in blackouts and create safety hazards like causing grass fires and bushfires. Evoenergy’s helicopter patrols are an important part of our overall network maintenance program and bushfire mitigation strategy.

The patrols allow us to identify trees and vegetation that may restrict access or prevent essential maintenance from being carried out.

Our helicopter patrols will be conducted between 2-23 February 2020, weather permitting.

This year, the patrols will cover roughly 1,200km of overhead powerlines, saving time and resources to inspect vegetation around poles and wires. The patrols inspect for vegetation encroaching on powerlines and fly at approximately 350 - 500 feet (approx. 110 – 150 metres) in rural areas and above 1,000 feet (approx. 310 metres) in urban areas with minimal hovering and use Light Detection and Ranging (LiDAR) technology to determine the distance between powerlines and trees.

The helicopter will patrol rural and urban areas within or adjacent to:

Belconnen, Booth, Coree, Cotter River, Gungahlin, Hall, Hume, Jerrabomberra, Kowen, Majura, Mount Clear, Paddy’s River, Rendezvous Creek, Stromlo, Tennent, Tuggeranong, Tharwa, Weston Creek, Woden Valley and Molonglo Valley.

Frequently asked questions

  • When will the patrols start?
    • Evoenergy is carrying out helicopter inspections of overhead powerlines from 2 February – 23 February 2020 across parts of Canberra, weather permitting.
    • The site for take-off and landing is Canberra Airport.
    • Residents can also follow us at twitter.com/EvoenergyACT to get up-to-date information on the patrols in their suburb.
     
  • What does the helicopter do in the air/what are they looking for?
    • The patrols inspect for vegetation encroaching on powerlines and fly at approximately 350 - 500 feet (approx. 110 – 150 metres) in rural areas and above 1,000 feet (approx. 310 metres) in urban areas with minimal hovering.
    • The helicopter uses Light Detection and Ranging (LiDAR) remote sensing technology to determine the distance between powerlines and vegetation. Vegetation too close to powerlines is prioritised for cutting by Evoenergy’s authorised service providers in rural areas, or notifications are sent to customers or ACT Government depending on where trees are located in suburban areas.
    • The helicopter also takes high resolution pole top images in high bushfire prone (rural) areas to assess the pole top condition and prioritise our preventative maintenance regimes.
  • What distances will they travel?
    • The helicopter covers up to 1,200km of powerlines during the patrol.
  • Why does the helicopter start early in the morning?
    • Weather permitting, the patrols generally fly between 8am and 4pm. They start early so they can get two flying sessions in a day and depending on forecasts, to avoid unfavourable weather conditions later in the day.
    • We try to avoid flying on Sundays but depending on weather forecasts and if they need to make up time for days lost because of bad weather they may have to fly on a Sunday.
  • What noise should I expect from the helicopter?
    • The helicopter we use for the patrols has had noise reduction modifications.
    • Using a unique data capture system, the need for turns and hovering (the noisiest part of helicopter operations) is greatly reduced.
  • What happens if the patrols identify vegetation growing too close to powerlines?
    • Vegetation management work is prioritised on a scale from immediate response to reactively clear to no action required/monitor.
    • However it’s a good reminder that if you own or rent your home, it’s your responsibility to keep trees and other vegetation clear of powerlines to help reduce the risk of blackouts, bushfires and electric shocks and to allow us to carry out important maintenance work.
    • Trees and vegetation need to be a minimum distance of 1.5 metres away from powerlines.
    • If trees and vegetation are within 1.5 metres, only Evoenergy-accredited tree surgeons are authorised to cut them back from powerlines. You can find a full list of Evoenergy-accredited tree surgeons on our website.
    • Read more about trees and powerlines
     

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