When you measure from the wall, it's likely to be a lot higher (guessing 70-100 for a p3, 100-170 for a p4, and running under 2.5 watts max load for 24/7 operations adds up. Keep in mind that every watt you use in the summer can also add towards a/c, too. My whole house power bill floats near 500kwh/m and I have a fair amount of stuff that runs 24/7 (computer stuff accounts for about 160-250 watts depending on load). Most people with equivalent situations seem to pay about another $50 each month, and they definitely don't include power consumption near the top of the purchase criteria. It's certainly not from one box, but that's about $600 a year in savings. Each tool has it's place. For example, I have incandesants in some specific areas of my house for the net energy/cost savings ( and cfl in the rest). If you only use that box 150 hours a year, the power savings might never pay for the upgrade. By comparison, I payed for a big PC upgrade several times over with just the power savings from some of the newer amds. On Apr 21, 2012 9:48 PM, "STeve Andre'" <<a href="mailto:andres@msu.edu">andres@msu.edu</a>> wrote: > > That's true. A p3 dell I have wants 55 watts, so you can have 19 to 20 > hours of flight time on it for a Kwh, so three hours a night playing on > the dell each week is about $.10 around here. So while I agree that > it wants more power, I don't think that's a big difference, is it? > > --STeve Andre' > > > On 04/21/12 21:38, Richard Houser wrote: >> >> Those old p4ish systems you are talking about would burn the yearly power consumption of a pi in a week or so. If you run that for a year, the Pi ends up costing a small fraction as much and its silent. That and the possibility of battery power makes the Pi 'run circles' around such old systems for a large portion of the target audience. >> >> On Apr 21, 2012 9:15 PM, "STeve Andre'" <<a href="mailto:andres@msu.edu">andres@msu.edu</a>> wrote: >>> >>> OK, I'm neglecting the cool factor, nerd that I am. I see your point! >>> >>> --STeve Andre' >>> >>> On 04/21/12 21:11, Don Bosman wrote: >>>> >>>> I'm one of the Craig's list advertisers trying to get $50.00 for machines that can run circles around this little item. >>>> The coolness factor is involved with the Raspberry Pi. >>>> Bragging rights for "I'm getting something you haven't" is huge. My son is actually enthusiastic about the Pi. I'm hoping that will take him somewhere. >>>> >>>> Don Bosman >>>> >>>> On 4/21/2012 9:05 PM, STeve Andre' wrote: >>>>> >>>>> This is most cool! I will point out however, that $50 can buy a used Dell >>>>> that will run circles around this unit, with the possible exception of >>>> >>>> > > > _______________________________________________ > linux-user mailing list > <a href="mailto:linux-user@egr.msu.edu">linux-user@egr.msu.edu</a> > <a href="http://mailman.egr.msu.edu/mailman/listinfo/linux-user">http://mailman.egr.msu.edu/mailman/listinfo/linux-user</a> >