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Cost effectiveness analysis of WELS

31 Mar 2009

The Water Efficiency Labelling and Standards Scheme (WELS), introduced in July 2006, is a key program in the suite of options recently implemented by government agencies and water utilities to address water scarcity. WELS primarily influences water consumption by providing consumers with information about the water efficiency of all washing machines, dishwashers, toilets, urinals, taps and showers sold in Australia – thus enabling consumers to consider water efficiency as a factor in their purchase decisions. This study found that WELS compares favourably to other water urban water management options which have been recently implemented, or are proposed for implementation, in various Australian states and territories. Supply options in particular appear to be less cost-effective than WELS, ranging from $1.19 - $2.55/kL for desalination, to $3.58/KL for some surface supply options and $5.50/kL for more expensive recycling options.

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