Desalination data
The Victorian Desalination Plant is integral to securing Melbourne’s water supply – building a buffer in our water storages to support a growing population. Get an overview of how much desalinated water has been added to our water storages daily.
How much desalinated water is supplied?
The Victorian Desalination Plant can deliver up to 150 billion litres of high-quality drinking water a year. That’s one-third of Melbourne’s needs, or around 60,000 Olympic swimming pools.
Each year the government decides how much water is needed from the desalination plant to support Victorians for the year ahead. On 7 April 2026, the Minister for Water announced that a desalinated water order of 150 gigalitres would be placed for 2026-27.
Desalinated water orders are placed with the Victorian Desalination Plant operator by the Minister for Water on 1 April each year.
With the completion of the 2025-26 order, the desalination plant has produced 505 GL of water since 2017.
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Desalination
Know more about the Victorian Desalination Plant, including how it helps secure Melbourne's water supply now and into the future.
Water storage levels
See our daily water storages and more, including average catchment rainfall, flow into water storages and Melbourne's total water use.