Generator and transmission connections

Does this process apply to you?

The information below applies to the following types of generators and loads:

  • All transmission load connections
  • Generators in excess of 30 kVA (excluding 30 - 150kVA inverter-connected generation)

If you need to connect another type of generator or load, please refer to the business or residential connections section of our website.

Western Power is a regulated business

As the sole owner and operator of the electricity network in the South West of Western Australia, Western Power is a natural monopoly delivering the essential service of transporting electricity from generators to customers.

Western Power is regulated by an independent body of the State Government, the Economic Regulation Authority (ERA). The role of the ERA is to ensure that Western Power delivers an efficient service at a fair price, through various mechanisms including the Access Arrangement and Western Power’s transmission and distribution licenses.

Please refer to the Regulatory Requirements and the Applications and Queuing Policy fact sheets for more information on how Western Power is regulated and how this affects the connection process.

Connection process overview and fact sheets

Please refer to the following process maps for an overview of the connection process. Clicking on the linked fact sheets will provide additional information for each stage of the process.

Competing Applications Group (CAG) Process
Competing Applications
Group (CAG) Process

Non-competing application thresholds

How to apply for access to our network

If you are a large electricity load looking to connect to our transmission network, or an electricity generator, you must start the connection process by submitting an Enquiry with Western Power.

Please complete the Enquiry Notification Form below and email to

An Access Consultant will contact you within two business days to progress your enquiry.

Enquiry form

Following completion of the Enquiry Stage, you may submit a Connection Application using one of the following as appropriate.

Connection Application

Transmission Loads and Generators in Excess of 30 kVA Application Form

Computer model information and requirements

Generator and Load Model Guidelines

Model Sharing Fact Sheet

Generator testing and compliance monitoring requirements

Generator Compliance Monitoring Program Requirements

Commissioning Tests