Kangaroo Island's new seawater desalination plant

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The Australian and South Australian Governments have committed $47.8 million to build a new desalination plant on Kangaroo Island, which will provide an additional climate-independent drinking water supply, boost economic activity, and improve bushfire resilience.

The new desalination plant will be built in the vicinity of the existing plant at Penneshaw and, able to produce up to two megalitres a day, will improve drinking water security to support the tourism and agriculture industries.

Water produced from the new plant will supplement the existing Penneshaw facility and the Middle River Reservoir, supplying the Island through a connected drinking water network.

A new pipeline, connecting the new desalination plant to the Middle River-Kingscote network, will have capacity to service residents in Baudin Beach, Island Beach, Sapphiretown and American River.

Engagement with these communities will explore opportunities and interest in connecting to this new, safe, secure and affordable drinking water supply. Consultation will help inform where any new drinking water networks are laid.

We are now working towards commencing construction, and we anticipate that the desalination plant will take between 18 and 24 months to complete.


The Australian and South Australian Governments have committed $47.8 million to build a new desalination plant on Kangaroo Island, which will provide an additional climate-independent drinking water supply, boost economic activity, and improve bushfire resilience.

The new desalination plant will be built in the vicinity of the existing plant at Penneshaw and, able to produce up to two megalitres a day, will improve drinking water security to support the tourism and agriculture industries.

Water produced from the new plant will supplement the existing Penneshaw facility and the Middle River Reservoir, supplying the Island through a connected drinking water network.

A new pipeline, connecting the new desalination plant to the Middle River-Kingscote network, will have capacity to service residents in Baudin Beach, Island Beach, Sapphiretown and American River.

Engagement with these communities will explore opportunities and interest in connecting to this new, safe, secure and affordable drinking water supply. Consultation will help inform where any new drinking water networks are laid.

We are now working towards commencing construction, and we anticipate that the desalination plant will take between 18 and 24 months to complete.


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