Underground Power

The State Underground Power Program (SUPP) is an initiative that replaces overhead power lines in established areas with underground power infrastructure. The Program is a partnership between the State Government, Western Power and local government and is administered by the Public Utilities Office (PUO). 

Local governments can nominate areas to be converted to underground power. Each nomination is assessed against social, economic and technical criteria by the SUPP steering committee.

The City’s vision is to have overhead power lines placed underground throughout the entire City. 

In January 2017, it was announced that funding had been secured for three projects - Manning, Collier and South Perth. 

Construction will progress in the following order:

  • Collier – the area bounded by Canning Highway, Ryrie Avenue, Blamey Place and South Terrace
  • Manning – the area bounded by Manning Road, Kwinana Freeway, Hope Avenue and Challenger Avenue
  • South Perth – the area bounded by Douglas Avenue, Canning Highway, Hovia Terrace and Mill Point Road.  

The area known as Hurlingham, which is bounded by Ellam Street, Douglas Avenue and Mill Point Road does not meet the SUPP criteria and would not qualify for underground power as part of the SUPP program. The City was successful in seeking approval for the area to be included with the South Perth project as a Retrospective Underground Power Project (RUP) to benefit from the economies of scale of being part of the bigger project area. More details about this project will be available soon.

Project cost

At the September 2020 Council Meeting elected members accepted a $2.2 million COVID-19 financial relief package from Western Power for the two projects which will substantially reduce the project costs. 

The new offer has reduced the average cost per property to the same value as was included in the original survey that residents completed in 2016.

Payment details and the repayment structure will be considered as part of the 2021/22 budget process. 

Project schedule

Work in the Collier area will commence in early March. Residents within the project boundary will receive advice notices from Diamond Underground Services, the Western Power Contractor throughout the construction activities, estimated to be in March.

The Manning project is anticipated to commence in late April.

Work on these two projects is expected to take approximately 12-15 months.

The South Perth and Hurlingham projects will commence in late 2021. More information will be added to this page as it becomes available.

Find out more

Sign up for the City's eNewsletter to stay in touch about this project.

For questions related to the timing of the projects, site reinstatement or construction related activities, please contact Western Power at undergroundpower@westernpower.com.au

More information and frequently asked questions are available on the Western Power website

For information about the State Underground Power Program in general, visit the Public Utilities Office website.

News Listings

January 2021

Underground Power update

News Update 19 January 2021

Work has commenced to switch from overhead power lines to an underground power supply in Collier, with works in the Manning project area to follow soon.

Underground Power
September 2020

City secures additional funding for underground power projects

News Update 23 September 2020

Council have accepted a $2.2 million COVID-19 financial relief package from Western Power to progress underground power projects in Manning and Collier which will substantially reduce the project costs.

Underground Power
July 2018

Underground power visual inspections

News Update 16 July 2018

As part of the preliminary design works, consultants will be in the areas of Collier and Manning from Monday 16 July.

Underground Power

Related documents