Preliminary Analysis Of The Cost Effectiveness Of
Rainwater Tanks Rebate Scheme In
Greater Melbourne, Australia
Author(s)
S. Gato-Trinidad & K. Gan
Abstract
The Victorian Government in Australia through ‘The Water Smart Gardens and
Homes Rebate Scheme’ provides rebates to residential water users who are
connected to a mains water supply for purchasing water-saving devices and
services to reduce their water consumption. Households who purchased and
installed rainwater tanks from 1 January 2007 are eligible for a rebate of up to
$1000 per household depending on the size of the tank and connection for indoor
water uses, such as for toilet flushing and clothes washing. This report presents
the preliminary analysis of the cost effectiveness of the rainwater tanks’ rebate
scheme to the Victorian Government and to individual household owners who
availed this scheme. The study involves the analysis of water consumption
before and after the installation of rainwater tanks of 4391 households who
availed the government rebates and of 4400 households who did not avail the
scheme. Using the data provided by Yarra Valley Water the water savings from
different tank’s sizes were calculated from the households who installed the
rainwater tanks and received rebates. The results revealed that the 4400
households used less water than those that received government rebates before
the installation of rainwater tanks but after the installation their water usage
surpassed those that installed rainwater tanks. The results also show that
rainwater tank sizes with indoor plumbing have longer payback period than those
solely for outdoor purposes due to higher capital and operating costs even with
higher rebates from the government.
Keywords: rainwater tanks, cost effectiveness, payback period, water savings,
Melbourne, Australia.
Keywords
rainwater tanks, cost effectiveness, payback period, water savings,
Melbourne, Australia
Related Book
Other papers in this volume
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