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Powering our lives towards net-zero

As our state moves towards a decarbonised future and net-zero, it is essential to have a reliable and efficient network that can support the growing demand for renewable energy. That's where underground power can help by providing increased capacity to facilitate the integration of more renewables, while also offering numerous other benefits.

Underground power supporting the growth of renewables

Through the use of cables with the capacity to carry more power and an increase in the number of circuits, undergrounding provides the capability to manage loads more efficiently. Additionally, new network designs increase the capability to accommodate higher future energy demands of customers in the local transformer, while also improving hosting capacity for residential rooftop solar connections. The use of more efficient conductors also reduces voltage variation. All of this helps set the stage for both greener energy generation (like wind and solar) and further adoption of consumer energy resources and electrification of homes.

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Growth of undergrounding in WA

Undergrounding has been an integral part of the Western Australian power supply since the late 1970s. By 1991, all new urban subdivisions were constructed using underground power, and since 1996, there have been retrospective projects to convert overhead power to underground power. To date, in addition to the new subdivisions, there have been 95 undergrounding projects completed with around 100,000 properties retrospectively connected to underground power. The programs are conducted as a joint venture between local governments, the state government, and Western Power.