On Friday, 13 May 2016 08:12:36 UTC+1, Andy Burns wrote:
Steve Walker wrote:

Andy Burns wrote:

Now that the LEDs are available things are improving. The banning of
traditional lighbulbs was brought in before a proper alternative was
available.

They could do something sensible like make them refer to the life of the
complete lamp, rather than just the life of the LEDs.

Sensible to encourage good efficiencies for these.

If you were choosing your targets sensibly, you'd do those which would
save the greatest amount of energy first. How many minutes per month do
you use a hoover or hairdryer?

power transformers

Already very efficient.

I think it does refer to electricity supplier transformers, rather than
wall-warts, but presumably they are not keen to heat up their switching
yards?

electric motors

Already pretty efficient and improvements are likely to be by adding
complex electronics, which will increase the cost to unaffordable levels
for many devices.


Permanent magnet motor are much more efficient than conventional ones.