ebee:
"The 500W kettle (to "save" energy), is the perfect example of scientific stupidity over useability! "
Well said that man !
I have not seen 500 W kettles in shops but I have seen plenty in hotels. I think the idea is to avoid a huge demand on the system at certain times, especially early morning, when numerous residents switch them on at the same time to make their cuppa. Nothing to do with energy saving, really - not that hotels are interested in that. Look at those rotary toasters on the breakfast buffet, toasting nothing most of the time. Or those car park lights blazing in broad daylight. I could go on . . .
wallywombat:
Does anyone have a link to credible information that the EU Commission and/or Parliament ever proposed limiting kettles to 500W? Ignoring Daily Mail type headlines, all I can find is that kettles were on the Ecodesign list of products scheduled to be examined to see if there was scope regulating their design for better energy efficiency.
You wont find it - the recommendation that is nearest is the ecodesign study (here) Still not law by the way, just a labelling system.
If you make a kettle that is 500W you will struggle to meet the A rating requirement, unless you lag it well, as efficiency is correctly tested by looking at electrical energy in divided by energy in the hot water out.
Unsurprisingly the faster you boil the easier it is to meet this requirement.
Very early in the consultation process there was a proposal document that implied that kettles should use 20% less electricity year on year, but then some engineering minded Germans got involved and that quickly got dropped in favour of restrictions on designs that have a standby 'keep hot' feature, and the overall efficiency in terms of the fraction of the heat leaving through the sides. It seems that the Daily Torygraph got hold of the early proposal , and still does not realise it has been dropped.
Limitations on the efficiency of motors in vacuum cleaners and hair dryers are genuine, but then there is a good reason for those.
Mike.
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