Re: When I click sleep - stay asleep!

Al <no.spam@xxxxxxxxxx> wrote:

In article <446dda0f$0$24295$88260bb3@xxxxxxxxxxxxxxxxx>,
Gnarlodious <decode@xxxxxx> wrote:

to save 5 watts, but the EMF surge when powering up is going to pull
almost more than it would have used idling all night.

The cost is not the issue, the issue is millions of people using some
amount of energy that is doing nothing but generating heat! Most wall
warts and other appliances no longer have on/off switches. I solve that
problem by plugging my wall warts into a power strip with an on/off
switch on it. At night, switch off. No power drain. It's worked for me
for years. What did I save? Maybe the Planet?

Have you actually saved anything at all? Maybe. Maybe not. Reread the
part of Gnarlodious' posting that I excerpted above.

As an engineer and software analyst, I'm *VERY* used to the difference
between predictions and reality. Such differences are pretty much why my
work site exists. Airplanes don't always fly as predicted. And in the
software side of my business, there are numerous well-documented and
explained cases of people making changes intended to speed up programs,
but which actually slowed them down, sometimes hugely.

You have a prediction of power savings. The reality is... uncertain.

The smaller the amount of power predicted to be saved, the higher is the
possibility that you don't even have the right sign and may be spending
more energy than you save. I haven't tried to analyze the particular
case in question to look at the numbers closely enough to see how likely
that is, but I don't find Gnnarlodious' point obviously implausible.
Booting from powerdown seems likely to use more energy than waking from
sleep.

--
Richard Maine | Good judgment comes from experience;
email: my first.last at org.domain| experience comes from bad judgment.
org: nasa, domain: gov | -- Mark Twain
.

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