Possible Future Perth Seawater Desalination Plant Stage 2

Perth Seawater Desalination Plant in Kwinana

What we're investigating

Water Corporation has operated its Perth Seawater Desalination Plant in Kwinana for more than ten years. Producing 45 billion litres of water per year (or about 18 per cent of Perth’s water supply), the plant was the first of its kind built in Western Australia.

We are investigating plans to:

  • Build a 25 billion litre per year seawater desalination plant, with a further 25 billion litre per year expansion to follow
  • Build a new seawater intake pipeline and outfall along the ocean bed
  • Utilise existing pipelines (where possible) to transfer water to Thomsons Reservoir, where it will become part of Perth's water supply.

What will the plant look like?

It is expected that the Stage 2 plant will look similar to the existing seawater desalination plant in Kwinana, with considerations to mitigate construction and operational impacts (such as noise and lighting) on the surrounding industrial area.

Protecting the marine environment

As part of our planning and approvals for the possible future desalination plant, we are completing detailed studies and modelling of the local marine environment.

We will continue to work with environmental regulators, other industries and the community, including the Cockburn Sound Management Council, to protect the marine environment.

Planning the intake and outfall pipelines

We are completing marine studies and modelling that will identify where we are best placed to locate intake and outfall pipelines along the ocean bed. Once this work is complete we will share our plans with the community and stakeholders.

How can you get involved?

You can have your say by filling out a short survey below, leaving a comment or question, or emailing community.engagement@watercorporation.com.au

How we will use your input

Your feedback will be considered during our early investigation activities and may also be included in environmental approvals documentation.

Join the discussion - tell us your feedback about the Perth Seawater Desalination Plant Stage 2

What we're investigating

Water Corporation has operated its Perth Seawater Desalination Plant in Kwinana for more than ten years. Producing 45 billion litres of water per year (or about 18 per cent of Perth’s water supply), the plant was the first of its kind built in Western Australia.

We are investigating plans to:

  • Build a 25 billion litre per year seawater desalination plant, with a further 25 billion litre per year expansion to follow
  • Build a new seawater intake pipeline and outfall along the ocean bed
  • Utilise existing pipelines (where possible) to transfer water to Thomsons Reservoir, where it will become part of Perth's water supply.

What will the plant look like?

It is expected that the Stage 2 plant will look similar to the existing seawater desalination plant in Kwinana, with considerations to mitigate construction and operational impacts (such as noise and lighting) on the surrounding industrial area.

Protecting the marine environment

As part of our planning and approvals for the possible future desalination plant, we are completing detailed studies and modelling of the local marine environment.

We will continue to work with environmental regulators, other industries and the community, including the Cockburn Sound Management Council, to protect the marine environment.

Planning the intake and outfall pipelines

We are completing marine studies and modelling that will identify where we are best placed to locate intake and outfall pipelines along the ocean bed. Once this work is complete we will share our plans with the community and stakeholders.

How can you get involved?

You can have your say by filling out a short survey below, leaving a comment or question, or emailing community.engagement@watercorporation.com.au

How we will use your input

Your feedback will be considered during our early investigation activities and may also be included in environmental approvals documentation.

Join the discussion - tell us your feedback about the Perth Seawater Desalination Plant Stage 2

Have your say on the possible future Perth Seawater Desalination Plant Stage 2