Desalination

Desalination is a secure water source that doesn’t depend on the rain - that’s fresh water thinking. Find out about our two desalination plants and how they contribute to Perth's water supply.

As WA continues to experience a drying climate, it is important that we bring on new and sustainable water sources that are climate independent.

Desalination is not our only option for the future, but it is an important one. It is a more secure drinking water source than traditional surface and groundwater sources as it does not rely on rainfall.

Almost half of Perth’s water needs – about 150 billion litres a year – is supplied by water desalinated at our two desalination plants.

Desalination in WA - how it works



Perth Seawater Desalination Plant

Perth Seawater Desalination Plant

Our first desalination plant was the first plant of its kind to provide drinking water to the public.

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Southern Seawater Desalination Plant

Southern Seawater Desalination Plant

The Binningup desalination plant now has a capacity of producing nearly 1/3 of Perth's water supply.

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