DECC - Hot Water System rebate up take report
March 5, 2009
The most important consideration when choosing a hot water system is the size. To maximise emission and running cost savings, the system should be large enough to provide hot water to meet the household’s needs. A system that is too big costs more to buy and run and will generate more greenhouse gas emissions. Hot water professionals can advise on the appropriate size of a system for the household. Installing water efficient fixtures, such as showerheads and taps and insulating hot water pipes to prevent heat loss will maximize the efficiency of all hot water systems. Householders switching to electric-boosted solar hot water systems can also save more in running costs by switching to an off-peak tariff, which has the added benefit of reducing peak demand.
Solar hot water systems provide the greatest emission savings and account for 60 per cent of the hot water systems installed in NSW in 2007–2008 with the help of the rebate. Switching from an electric hot water system to a solar hot water system saves an average of 3.0 tonnes of greenhouse gas emissions a year. Switching from electric to a heat pump system saves 2.4 tonnes and switching to gas saves 2.9 tonnes a year. Figure 1 shows the breakdown of hot water system rebate uptake by system type.
AS adapted from Department of Environment and Climate Change Annual Report 2007 - 2008
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