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Underground power at your property

It is important to always take care around green domes

Properties with underground power are connected to the electricity network through a service pillar or ‘green dome’, located just inside the property boundary. This green dome contains live electrical wires so should be treated with a high degree of caution, particularly when performing work nearby. There are some key points to remember:

  • The area above and around a green dome should be kept clear to allow for authorised access, including a 500mm exclusion zone around the base of the unit.
  • Horizon Power requires access to the green domes at all times. With this in mind, please keep shrubbery well away, and ensure that access to the green dome is maintained and free from obstructions. The ground level should not be raised to a level where the green dome is buried.
  • If you make contact with a green dome or notice any damage, please contact Horizon Power immediately on 13 23 51. Do not touch a damaged dome and ensure the area is isolated so other people are aware of the danger before Horizon Power crews attend the site.

Underground power fact sheet

Report any electrical incidents or faults to Horizon Power immediately on 13 23 51.
In an emergency situation, call 000.


Use the four P's when planning works

If you plan on doing any work in the front yard of your property, always follow the four P’s to ensure you carry your work out safely without hitting any underground cables. The four P’s include:


Always plan your job before proceeding with any work. The following steps can help.

  • Check your meter box for the location of the consumer main on your property.
  • If your meter box does not show this, hire a licenced electrician to do this work (this cable is owned by the property owner).
  • If you plan on doing work near the edge of your boundary, always hire a licenced surveyor to peg your boundary line to ensure you do not excavate past this.
  • If you intend to do work outside your property line, use the Dial Before You Dig service at least two business days before your job is due to begin to ensure you have the correct information you need to carry out a safe project.
  • Your consumer main will not show on Dial Before You Dig plans as it is a privately owned asset.


Potholing (hand digging) with caution is a method to assist in establishing the exact location of all underground infrastructure.


Protecting and supporting the exposed infrastructure is the responsibility of the excavator. Always erect safety barriers in areas at risk to protect underground networks.


Proceed only when you have planned, potholed and put the protective measures in place.