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The Influence of Rebate Programs on the Demand for Water Heaters: The Case of New South Wales

Nada Wasi and Richard Carson

No 100731, 2011 Conference (55th), February 8-11, 2011, Melbourne, Australia from Australian Agricultural and Resource Economics Society

Abstract: In the past decade the Australian Federal government and state governments have established a wide range of programs to cut greenhouse gas emissions from all sectors. This paper examines the role of hot water system rebate programs in shifting the existing stock of electric water heaters toward more climate friendly versions using two unique data sets from New South Wales homeowners. The first data set is based on a survey of households who recently purchased a water heater and exploits a natural experiment created by the rebate program to quantify its effects. The other data set is based on a set of stated preference questions asked of households who own an older water heater and will in the reasonably near future face a replacement decision. We find that recent rebate programs significantly increased the share of solar/heat pump systems. For households without access to natural gas, this increased share comes directly from inefficient electric water heaters. For households with access to natural gas, older existing electric water heaters would likely have been replaced with gas water heaters in the absence of the rebate programs. The rebate program appears to be much less effective when water heaters are replaced on an emergency basis. Data from discrete choice experiments was analysed using several flexible choice models. A newly proposed model that combines a latent class approach with a random coefficients approach clearly dominates the other models in terms of statistical fit. Predictions based on this model estimate are reasonably consistent with actual purchase data. Results from it point to considerable heterogeneity with respect to household preferences toward different types of water heaters and with respect to the discount rates they hold.

Keywords: Environmental Economics and Policy; Resource /Energy Economics and Policy (search for similar items in EconPapers)
Pages: 46
Date: 2011
New Economics Papers: this item is included in nep-dcm, nep-ene, nep-env and nep-res
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Journal Article: The influence of rebate programs on the demand for water heaters: The case of New South Wales (2013) Downloads
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Persistent link: https://EconPapers.repec.org/RePEc:ags:aare11:100731

DOI: 10.22004/ag.econ.100731

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