Back when I ran a home server on my Athlon X2 with 1500 W supply, the machine never drew that much. Even with several disks spinning, 8 VMWare instances going and a few other goodies, that machine never drew more than 600w at maximum. I kept it live 24/7 for a few years and it added less than $120 yearly to the electrical bill. These days, that machine is out of service and is only good for parts. My Mac mini, which draws at most 100 W under full load is on 24/7 and I don’t even see it add that much to the electrical bill here. There are really only 3 high draw appliances in this house now: 1. The refrigerator 2. The stove/oven 3. The master cool evaporative cooler. Everything else either runs on wall warts or only gets used occasionally. In fact, we spend less than $150 a month here for electric. Now, if I put that Athlon X2 back into service, we might see $10 a month in extra use. I am still contemplating putting it back up and using it as my go to linux development machine.
-Eric From the Central Offices of the Technomage Guild, Utilities Dept. > On Jul 21, 2021, at 7:33 AM, Keith Smith via PLUG-discuss > <[email protected]> wrote: > > > > Hi, > > I just read this quote about the electrical costs to run a web server from > home: > > Cost: While it may sound cheaper to use that computer lying around doing > nothing when creating your web server, when you factor in the cost of > powering an old computer 24 hours a day, it can get very expensive. A 250W > desktop computer running 24 hours per day at 12 cents per KW/h is a whopping > $262.00 per year! > > --- > I think their math is wrong. > > The average residential electricity rate in Chandler is 10.85¢/kWh. > > I'm thinking a low traffic PHP web server running on an old Dell with a 400 > watt power supply is not using but maybe 100 watts on average. I've read > that the computer should use no more than half the power supply capacity. Is > this correct? > > If my home web server is using 100 watts an hour that mean 100 watts * 30 > days * 24 hours or 72K watts. > > I'm thinking 72 * .1085 = $7.81 a month. > > Any thoughts are much appreciated. > > --------------------------------------------------- > PLUG-discuss mailing list - [email protected] > To subscribe, unsubscribe, or to change your mail settings: > https://lists.phxlinux.org/mailman/listinfo/plug-discuss --------------------------------------------------- PLUG-discuss mailing list - [email protected] To subscribe, unsubscribe, or to change your mail settings: https://lists.phxlinux.org/mailman/listinfo/plug-discuss
