Southern Seawater Desalination Plant

The Southern Seawater Desalination Plant, located in Binningup, produces up to 100 billion litres of fresh drinking water a year - around 30% of Perth’s water supply. It started production in 2011.

Major upgrades were made to the southern section of Perth’s water supply (the Integrated Water Supply Scheme) to deliver the water into the system and on to customers. This included additional pipelines and building a new pumping station.

Renewable energy

Since production commenced in 2011, we have purchased energy from a wind farm and solar farm near Geraldton. The wind and solar farm were developed on the back of a long term energy purchase agreement associated with the Southern Seawater Desalination Plant.

Community involvement

Water Corporation continues to work with the Binningup community, who played an integral role during the planning and construction of the plant. A Community Reference Group (CRG) has been established to enhance communications between our project team and the communities of Binningup and Myalup.
In consultation with the CRG, two important documents were developed: a commitments register detailing the commitments made by Water Corporation to the community during plant construction; and a social impact management plan that looked closer at the potential construction and operational impacts and mitigation measures.

Commitments register

Social Impact Management Plan


Our latest annual performance and compliance reports are available for download:

Performance and Compliance Report (14 April 2018 – 13 April 2019)

Earlier reports have been archived and are available on request. Copies of report appendices and earlier reports can be made available by contacting