--- Jamie Ballou <[EMAIL PROTECTED]> wrote: > This may seem like
a silly question to some, but how did you measure
> the
> energy output of your fridge for 24 hours?
>
> Jamie E. Ballou
> Endocrinology Lab Assistant
> San Diego Zoo
> Center for Reproduction of Endangered Species
>
You can buy plug-in electricity consumption meters, at least here in
the UK (although they are hard to find). The one I have borrowed tells
you instantaneous volts, amps, power factor and power. It can measure
the total energy consumed over a period of time, and tell you how long
it has been measuring for. You can even program cost information into
it (two rates at programmable times of day) and it will tell you how
much money you've spent!
I had an electricity bill that was higher than I expected, and I used
this to find out roughly how much various things are costing. The
surprises are in the large number of small items that still consume
significant power when switched off. For example my PC monitor uses 18W
even when it's switched off! Power supply transformers (for
loudspeakers, telephone chargers, and various computer appliances) seem
to consume around 7W per item - so with something like 10 of these
around the house this is a significant amount of energy being totally
wasted. They barely use any more when they are switched on, as a
general rule. So I have tried to run as many of these as possible from
one socket that I can switch off at the wall when not in use.
These items probably are costing me around GBP3 - 4 (USD5 - 9) per
month for doing nothing at all useful. The fridge is costing around
GBP2 per month. For a total bill around GBP10 per month averaged over
the year (I have compact fluorescent lamps throughout the house and gas
heating), this is a large proportion of the total.
=====
--
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