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Update or modify power supply

When your energy needs change, your electricity supply might need to be updated or upgraded.

Apply to upgrade an existing power supply

Apply to upgrade an existing power supply

If you need to increase your existing supply (for example, to expand your business, add new appliances or workshop equipment) you can request a supply upgrade using the form below.  

Apply now

It will take approximately 10 minutes to download and complete the application form or you can call us to open an account.

Please note, for large connections, you can submit a preliminary enquiry and discuss your requirements before submitting a complete application.  

For residential customers

Electricity connections can be varied and complex. We recommend that a professional electrical consultant or contractor completes this application on your behalf. You’ll also need permission from your strata company, if applicable. 

For contractors

As part of the application process, you’ll need to provide the existing meter number.

About the application process

The cost of your upgrade will depend on the size, type, and location of the connection. We'll provide you with a quote once we've reviewed your requirements. If your connection has a total maximum load of between 30 kVA and 1000 kVA (or 10% of the relevant systems peak load), a design fee of $6,287.00 will apply. 

This form will also capture your CT metering requirements. You’ll find more detail about this and the information you need to provide, on the application form. 

All prices are correct as at 1 July 2021, include GST (except where noted otherwise), and are subject to change at any time. 

After you have submitted your application, please allow approximately: 

  • 30 business days to design and provide you with a  formal quote 
  • 30 business days for you to sign the Quote Acceptance form and return it to us
  • 12 weeks for work to commence following receipt of payment

Please note: these time frames are estimates only and can vary. 

 

About the application process

Apply for a CT meter

CT (Current Transformer) meters are installed on any connections with a load greater than 100 amps. A CT meter only measures a fraction of the current passing through the connection and a multiplier is applied to this reading to reflect the actual current. 

After you have submitted your application, please allow approximately: 

  • 30 business days to design and provide you with a  formal quote 
  • 30 business days for you to sign the Quote Acceptance form and return it to us
  • 12 weeks for work to commence following receipt of payment

Please note: these time frames are estimates only and can vary. 

Apply for a CT meter
Apply for a meter phase upgrade

Apply for a meter phase upgrade

Single phase power is used in most new homes and small businesses. Sometimes, you'll need to upgrade to three phase power to run a new air conditioner, oven, appliance or machinery that requires three phase to operate.   

Some three phase upgrades can be performed inside the switchboard by a qualified electrician. Speak to your electrician about the work you need and how much it will cost.  
 
Once you've found an electrician to do the work, they need to complete and submit a Preliminary and Completion notice which will notify us of the work being carried out.  

Notify us
Apply to relocate an electrical asset

If you need to relocate distribution equipment such as transformers, pillars and overhead lines, you can apply online. You’ll need to include a site plan with your application. 

Any relocation is subject to a suitable alternative location for the asset - and charges will apply. Once we process your application, we’ll provide you with a quote for the work required.  

Apply now
Apply to modify an electrical asset

You can apply online to request to attach either decorative works (such as banners) or CCTV cameras to our Horizon Power assets. This is in line with the Third Party Attachments Policy.  

We will provide a quote for the work required within 30 business days of receiving your application. 

Apply now
New power supply

Request a new permanent or temporary connection for your building site.

Learn more
Disconnect or remove power supply

Whether you’re preparing for demolition or need to switch off to complete work safely, here is how you can request that we disconnect or remove a power supply 

Learn more
If you need to change or cancel your application

If you need to change or cancel your application

Sometimes your circumstances change and you may need to cancel or change the information within your application after you have submitted it to us. 

If you would like to change the scope of work in your application, we will first review the change and then: 

  • If the change is minor, we might continue the project with the variation and invoice you for any additional materials, design work and remobilisation costs incurred.  
  • If the change is major, we may need to cancel the project and ask that you submit a new application with your new requirements. 

Please note: for cancelled applications we will invoice you for the costs incurred up to the point of cancellation (time and materials). If construction work has already commenced, we will refund the difference from your access offer, less any costs incurred. 

Still have questions?

Contact your local Horizon Power office.

Find your local office

Horizon Power acknowledges the Traditional Custodians throughout Western Australia and their continuing connection to the land, waters and community. We pay our respects to all members of the Aboriginal communities and their cultures; and to Elders past, present and emerging.

Aboriginal and Torres Strait Islander people are advised that this website may contain images, names or voices of deceased people.