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Phase conversion or upgrade overhead cable

Whether you are looking to install three phase power at your home or upgrade the power supply to your business, you can find everything you need to know about converting your single phase or three phase electrical supply on this page; including what you need to complete the application, how long it will take, and the fees and charges involved in connecting your single or three phase power supply.

If three phase is available use this service request to upgrade an existing single phase supply to a standard three phase power supply, or convert three phase supply to one phase, or upgrade your overhead electricity service cable to 16mm2.

To check if three phase power is available at your property, complete our enquiry form.

Phase conversion or upgrade overhead cable

This application must be completed by an electrical contractor. Approximate time required to complete application: 10 minutes.

Apply here

How much will it cost?



Business hours


After hours





Business hours


After hours


Business hours - between 7:30am and 4pm Mon-Fri, excluding public holidays

Fees and charges

Further information regarding the fees and charges involved with the installation or upgrading your phase power can be found in our Terms and Conditions.

How long will it take?

3 weeks to convert the phase after application is received

What will I need to complete this application?

  • EnergySafety Preliminary notice number
  • Ensure the Preliminary notice is for an alteration/addition
  • Existing meter number
  • A valid electrical contractor licence
  • A valid credit card to pay for the service

What if I want to cancel my application?

Please contact Western Power on 13 10 87, or email [email protected] within 3 days of your submission

The submission of 1 request covers 1 appointment. Please ensure you are ready and have completed your works before we attend site.

Upgrade the network to get three phase supply

Apply here