Water Tanks Blog

Rainwater Tanks as Alternative Supply Options

Rainwater Tanks as Alternative Supply Options

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A study (April 2007) by Marsden Jacobs Associates was prepared for the Australian Conservation Foundation, Environment Victoria and the Nature Conservation Council of NSW. 

This research focused on the impact of a potentially targeted rainwater tank roll-out in Sydney, Melbourne and South East Queensland in comparison to other ‘conventional’ water supply options such as new dams and desalination plants.

This study compares the yield and levelised cost (i.e. the direct cost per kilolitre supplied) of each supply option.

 The study recognizes the broader cost savings of rainwater tanks to the community such as deferred water infrastructure, savings to stormwater infrastructure and environmental externalities such as the cost of greenhouse gas emissions.

The study found that: