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Large commercial electricity supply

Large commercial electricity supply

Approximate time required to complete application: 10 minutes.

Apply here

Use this form if you want an electricity supply with a maximum demand greater than 1300A/1000kVA. 

How long will it take?

  • 7 weeks to provide you with a quote
  • 10 weeks to build once payment is received and customer has confirmed with Western Power the site is ready for construction

What will I need to complete this application?

How much will it cost?

We will provide you with a quote.

What more do I need to know?

  • These type of connections usually require a substation.
  • There are some physical clearances that are required between the electricity network and your equipment.
  • When you’re considering your substation site, please read the Western Power Distribution Substation Manual.
  • If you would like to apply for a non-compliant site please submit a feasibility study and one of our consultant engineers will let you know if it can be used.
  • The final specifications for the substation requirements will be determined when our engineers create your design. This means that the substation site you provide may be subject to change.
  • We will install the substation as part of the construction works; however you will need to prepare the site in advance. Some assistance can be found in the Western Australian Distribution Connection Manual.
  • If your supply will be greater than 100A your electrical contractor will provide the appropriate sized current transformers.
  • Your electrical contractor will need to complete the installation of direct metering.
    We will be responsible for terminating the consumer mains into the kiosk or transformer.
  • If your property will have multiple points of supply, then check compliance information from the West Australian Electrical Requirements.
  • In some cases non-compliant points of supply might still be viable, if you would like explore this option please submit a feasibility study.
  • If you intend to have a new or altered high voltage installation, your electrical contractor will need to submit a HV submission. Please note, this submission doesn’t need to be included with your application, but you will need to submit it before requesting the energisation of your installation.
  • If you are connected to the high voltage network, at 11kV and 22kV discrete loads up to 4MVA can generally be supplied to one switchboard. Discrete loads 4MVA up to 8MVA must be split evenly across two switchboards (with a maximum of 4MVA per switchboard). For discrete loads above 8MVA, we will assess them on an individual basis.

Fees and charges

Following the cancellation, expiry, termination or variation of the Customer Work Request or any other aspect of the works or documentation relating to the works, the customer may be liable to pay an administration fee of $550 (inclusive of GST) and any additional costs incurred by Western Power. Further information can be found in our Terms and Conditions clauses 8 and 16.3.

Large commercial electricity supply

Approximate time required to complete application: 10 minutes.

Apply here