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Does stand-by mode save power? and other power-conservation questions

P

Pretender

Banned
Since I just moved into a place where I actually have to pay for electricity now, I've been actually trying to conserve (sorry, no more 24/7 RC5🙁), and have been using standby mode. Since it leaves the drives (the CDs at least, unsure about the HDs), keyboard, and possibly the memory/processor powered up, does standby mode actually have an impact on power usage? What is the best way to conserve energy (other than powering down completely)?

And also, if you leave your monitor on when you're computer is off (i.e. monitor is receiving no signal), does it use up much power?



System specs for the first question - 250 W. P/S (ATX), P3V4X, 2 HDs (7200, 5400 RPM), 1 CDROM, 1 CD-R, a few cards, win98 SE.
 


<< And also, if you leave your monitor on when you're computer is off (i.e. monitor is receiving no signal), does it use up much power? >>



Not very much at all, if your monitor is energy star compliant. I believe its something around 5 Watts for standby/no signal.
 
If the monitor is Energy Star compliant, it probably consumes only 10-20 watts when no signal reaches it, compared to 50-120 watts in use (LCD monitors probably consume only 35 watts). So over a month this could save about $5 compared to leaving the monitor fully on 24 hours a day.

In most houses, heating and cooling use the most energy by far, and sealing air leaks can often reduce consumption by 10-20%, and at little cost. Ductwork is usually very leaky unless sealed with liquid mastic. Duct tape has been found to be the worst way to seal ducts because it deteriorates worse than almost anything, including regular packing tape. The only duct tape that works is pure metal foil with an adhesive rated for 160F.
 
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