Energy saving computer question.?

Question

is there a way to make your computer sleep whilst still downloading a torrent? i have several hard drives is it possible to sleep selected drives and not others? i allready turn off my monitor when i can. also would it be possible to run the computer off solar panels. i was thinking of using a UPS (is that what they are called?) and charging it with solar panels. is there such a product or perhaps has anyone heard of it before? would a computer run off 12v? (obviously not the monitor) i know you can get 12v power boxes for a computer but is it as efficient as normal voltage. just trying to do my bit for te environment. please help.

Answer 1

U r thinking of an expensive device.

Answer 2

You can charge a battery using solar panels and then use an inverter/UPS to run computers off that battery. WIll cost a lot of money since PV is expensive.

Answer 3

V = I X R  Using this formula you can prove that when the voltage  increases the amperage decreases. Amperage is the measurement of flow (current). We pay for current and not electricity. 12 Volt would be produced by transforming AC to DC and the current loss would be significant and costly. The current is dissipated through heat. Therefore NO it would actually cost more to run.