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Artarmon substation and power upgrade

About the substation

The Artarmon substation will supply traction power to the metro trains. The site includes an above-ground building for the substation and electrical equipment, and a shaft for the cables and maintenance access to the tunnels below.

Main site features

Construction of the Artarmon substation will involve:

  • removing existing buildings
  • excavating a vertical shaft to the tunnels below
  • lining and reinforcing the shaft
  • building above-ground components
  • installing electrical equipment.


The substation is located on Reserve Road, Artarmon, near the edge of the Gore Hill Freeway.

About the power supply upgrade

As part of Sydney Metro City & Southwest, a new traction power system is required, including new substations and power supply cables. This includes a new high voltage (33kv) power supply cable in the Artarmon industrial area.

Traction power is an electricity network designed to supply train networks. The Sydney Metro network traction power system will be separated and operate independently from the Sydney Trains network.


The new power cable will run from the Ausgrid electrical substation on Campbell Street to the new Artarmon traction substation at Reserve Road.

The cable will run predominantly underneath the roadway, to avoid impacts to properties in the area.

Planning and compliance

The Chatswood to Sydenham Environmental Impact Statement (EIS) covers the construction and operation of the Sydney Metro rail line from Chatswood to Sydenham.

The EIS was on public exhibition from 11 May to 27 June 2016 and received more than 300 submissions. The Minister for Planning approved the Chatswood to Sydenham EIS on 9 January 2017.

The latest information about planning modifications for Chatswood to Sydenham  can be viewed on the NSW Department of Planning and Environment website.

Systems Connect is a Joint Venture (JV) between CPB Contractors and UGL Engineering. The JV has been contracted to convert the excavated tunnel into a working railway for Sydney Metro City & Southwest. Line-wide work includes the permanent systems, services and building works required for metro trains to travel through the Sydney Metro City & Southwest tunnels.

For more information see City & Southwest planning and compliance documentation or Sydney Metro City & Southwest Line-wide Worksto find out more about our major contractors involved in the project.

If you are having difficulty locating a document, please contact the City & Southwest project at call our 24-hour community information line on 1800 171 386.

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