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  • Analysis, Industry - Written by on Thursday, April 24, 2014 14:16 - 7 Comments

    Energy-smart appliances cut Australian power bills by billions

    Power poles at a substation in San Carlos, California.

    This article is by Alan Pears, Sustainable Energy & Climate Researcher at RMIT University. It originally appeared on The Conversation.

    analysis The latest review of Australia’s energy-saving appliance scheme has delivered a rare trifecta: a good news story for the economy, the community and the environment. According to my estimates from data in the Department of Industry review, the value of energy saved in Australia last year alone was around A$3.2 billion. Of this, some A$2.7 billion was saved by households.

    The Equipment Energy Efficiency (E3) program aims to reduce energy use by household and business appliances, through the use of energy labels and enforceable standards for energy use. This latest review found that in 2013, the E3 program reduced Australia’s greenhouse gas emissions by 13.5 million tonnes at a cost of minus A$119 per tonne: in other words, it saved money to cut emissions. Overall, the savings delivered by embracing efficient appliances were three times greater than the costs.

    The savings in energy use were equivalent to 7% of all Australian electricity consumption – a fact that certainly helps to explain the recent declines in electricity consumption.

    By 2030, the program is forecast to be saving 34.4 million tonnes of greenhouse gas emissions per year, at a cost of minus A$118 per tonne and a benefit/cost ratio of 4.6. That means for every A$1 we spend, we get A$4.60 of benefits back. Not a bad result for a program with little political commitment and a low public profile. Imagine what it could achieve if it was taken more seriously.

    An average Australian household saves about A$6 per week from appliance energy efficiency. When Australia’s carbon price was announced in 2011, Treasury modelling estimated that a A$23-per-tonne carbon price would cost households A$9.90 per week, of which energy and water was A$4.60. So even without the financial compensation given out by the government, the energy-efficiency program has offset more than 60% of the estimated impact of carbon pricing on households.

    What’s more, Treasury estimates suggest that moving from the fixed carbon price to a globally-linked trading scheme (assuming a carbon price of A$6 per tonne) would reduce household weekly carbon costs by A$7.30. On this basis, Australia’s appliance efficiency program would already more than offset the total cost impact of an ongoing emissions trading scheme, even if international carbon prices doubled.

    Of course, appliances have been growing more efficient all the time, but the savings estimated here are on top of the “business as usual” trend. Without the incentive provided by the program, households would be using more energy and paying higher bills.

    table

    Since 1986, when the first energy labels began to appear on refrigerators, the program has provided a steady incentive for replacing inefficient appliances with better-performing ones. But given the huge savings and emissions cuts on offer, there is a strong case for a more aggressive program.

    The new report estimates that accelerating the program could deliver further net savings worth A$1.5 billion. But this is a very conservative figure, based on past studies that have consistently underestimated the benefits. The estimates of savings to date are also conservative, because they use 2000 as a baseline, despite the fact that the program has been around for much longer.

    Between 1986 and 2000, the average efficiency of new refrigerators purchased by Australian consumers improved by around 40%. Similarly, dishwashers became 23% more efficient between 1993 and 2000 – savings that are not captured in the report’s figures.

    Are there more savings to be made? There certainly are. One option is to expand efficiency programs to include a wider range of products.

    A typical ceiling fan, for example, uses about 80 watts, whereas the most efficient models use less than a quarter of this. Energy labelling and minimum standards could drive large savings, especially in tropical areas.

    Stronger measures could be introduced sooner. For example, swimming pool filter pumps are large energy consumers, and the existing voluntary energy labelling scheme shows savings of up to 80%. But the present schedule will not see mandatory labels and minimum energy performance standards until 2017.

    Replacing old, inefficient appliances offers big benefits. For example, many old refrigerators are faulty, and use up to eight times as much as a modern fridge, so replacing them brings disproportionately large savings. This could be encouraged by offering trade-ins for specific models, or offering home audits to identify appliances in need of replacement. The program could also be expanded to include funding the development of new energy-efficiency technologies.

    In a recent conference presentation to the Australian Alliance to Save Energy, I compared the energy performance of market-leading appliances against average ones. Replacing appliances with the best ones on the market can deliver power savings of 30-80%.

    Then there is the potential to improve performance through the use of “smart” technology and design, such as load-sensing motors in washing machines. You can then take that further by encouraging changes in user behaviour, such as buying low-temperature detergents, cutting down on household bills and power use for hot water. My research suggests that for most appliances there seems to be potential to improve efficiency by another 30-60% beyond the current best available performance.

    Australia’s appliance energy efficiency program (which New Zealand also joined a few years ago) has already cost-effectively cut greenhouse gas emissions, helped to reduce peak energy demand, reduced energy bills, and offset much of the cost associated with Australia’s fixed carbon price.

    If, rather than scrapping carbon pricing, Australia were to shift to a globally-linked emissions trading scheme, carbon costs would be significantly reduced and the benefits from appliance efficiency would outweigh household carbon costs. That would effectively give us a climate policy that actually makes money.

    Expanding and strengthening our energy efficiency program would deliver even more savings for Australian households, businesses and for the environment. But that’s if our government chooses to act.

    Alan Pears AM has carried out consulting work for many sustainable energy organisations and provides policy advice to a variety of organisations. At present he has no paid roles for such organisations. He is an honorary adviser to the Energy Efficiency Council, Climate Alliance and Alternative Technology Association. This article was originally published on The Conversation. Read the original article.

    Photo credit: Peter Kaminski via photopin cc

    The Conversation

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    7 Comments

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    1. Ronson
      Posted 24/04/2014 at 2:24 pm | Permalink |

      In NSW we were encouraged to save water and we did. Our payback? Higher water bills to cover the cost of lost revenue.

      From July 1, household gas prices will rise by 17.6%.

      How long before electricity prices escalate to over the loss of revenue to suppliers?

      The public should benefit from energy saving but they don’t, they just pay more.

      • bern
        Posted 24/04/2014 at 2:49 pm | Permalink |

        You’re absolutely right. Here in QLD, the justification given for an electricity price increase a few years back was ‘protection of suppliers’ margins’, which had fallen due to demand reduction during a couple of cool wet summers.

      • Nexus789
        Posted 27/04/2014 at 5:27 pm | Permalink |

        It will get worse as technology not only changes the profile of the load curve other technologies will mean consumers will need the grid less. Therefore, the ‘cost’ maintaining the network assets will rise for those that remain connected. The regulatory and pricing model needs to change in the face of these changes and encourage different behaviours and different types of investments from power and other utility companies.

    2. R
      Posted 24/04/2014 at 5:25 pm | Permalink |

      This article isn’t about smart appliances, it’s merely about efficient ones. ‘Smart’ in this context usually refers to appliances which operate on a time to take advantage of off-peak rates.

    3. Adam
      Posted 26/04/2014 at 4:19 pm | Permalink |

      There are no offpeak rates – unless you’re talking about the separate circuit installed normally used by hot water systems. But electricity doesn’t change value throughout the day for residential customers.

    4. midspace
      Posted 29/04/2014 at 4:41 pm | Permalink |

      And following that, you should read this:
      “The price of power”
      http://www.abc.net.au/radionational/programs/backgroundbriefing/2014-04-27/5406022

      The coal fired power stations are feeling the pressure, and want the government to wind back the renewable energy targets.




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