I posted this a few weeks ago on another thread, but it's relevant to
this one as well:-

With the last increase in energy costs, I went round the house working
out what the approximate consumption is of all the stuff left on standby
or on permanently, and I come to something around 400W.


JeeZZsus!.... You sure about that?.....


That's 3500KWh
per year! Some of the stuff, like fridge, freezer, cooker hob, ovens
etc can't be switched off without risking damaged food or the hassle of
resetting clocks, but other stuff certainly can be. Turning off just the
hi-fi and TV equipment when not being used saves 584KWh a year, more if
I also turn off the wireless router and the computer at night.



I would suggest that our domestic consumption is typical, even lower
than average as our children have left home, so if more people turned
off stuff on standby, the power saving would be very considerable. There
is the anecdotal evidence that equipment left on standby or permanently
on seems to be more reliable, but I'm happy to take that chance.

S.

--
Tony Sayer