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Washing Machines

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For washing machines the energy efficiency scale is calculated using a cotton cycle at 60°C (140°F) with a maximum declared load. This load is typically 6 kg. The energy efficiency index is in kWh per kilogramme of washing.

With advances in energy efficiency nearly all washing machines are now A rated and so A+ and A++ ratings have been introduced. So is it worth basing a purchasing decision on the energy rating? In the table below are some examples of the annual running costs of 3 different washing machines rated A, A+ and A++.An A++ machine saves approximately 4pence per wash or £ 10 per year over an A rated machine. This difference is pretty small, especially if the A++ rated machine costs £ 100 more! Also reliability and longevity need to be taken into account. The running costs of a machine are not just energy consumption, it includes repairs and how long it lasts before it has to be replaced.

Energy rating Energy consumption kWh/cycle Cost per wash Cost per year
A 1.52 21 pence £ 76
A+ 1.36 19 pence £ 68
A++ 1.2 16 pence £ 60
The annual running costs are based on a single wash each day

Because the energy cost differences are so small; it should not be used as the basis for a buying decision. The number one priority should be to buy a good quality reliable machine that fits your budget. A washing machine that breaks down regularly, requires expensive spare parts and needs replacing far too soon is bad for your wallet and the environment, even if it is A+ rated.



 
Comments (2)
microwave oven
2 Tuesday, 20 December 2011 20:24
Richard
Hi Patrick.
can you be more specific. i.e. is it data about microwave ovens you are after or is it habits in the use of them in a single person flat?
Cheers
Richard
microwave consumption
1 Monday, 19 December 2011 18:27
P.L.Fisher
I am trying to work out the average annual electricity consumption in a single person flat, excluding space heating. I wonder if you have any figures for microwave ovens?

Thanks

Patrick Fisher

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Site Guidance

All calculations on this site are based on current fuel prices they are checked regularly are automatically updated and were last changed on:-
1th February 2012
For complete clarity, all calculation using current fuel prices are coloured red.
The costs calculated based on these fuel prices should be regarded as 'good estimates', given that fuel prices vary in different parts of the county and at different time of the year.
The calculations also have different levels of accuracy depending on the nature of the calculation. For example calculating the energy use of a known power output TV is very easy compared to calculating the effect on energy savings when insulating a cavity wall.

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