Electrical costs to run a home web server

[Aaron Jones]

Blake, what device do you use to measure the plug?

> On Jul 21, 2021, at 8:19 AM, blake gonterman via PLUG-discuss <plug-discuss at lists.phxlinux.org> wrote:
> 
> 
> I have a system running 24/7 pulling about 19kWh according to the plug I have it on. The PSU is about 1650watts in total with about 950w used.
> 
> 
> 
> 
>> On Wed, Jul 21, 2021, 8:08 AM Retro64XYZ via PLUG-discuss <plug-discuss at lists.phxlinux.org> wrote:
>> My SRP bill is $293.65 and we run our AC hard, have fans going, and my 
>> wife leaves the blinds open all the time so I know we could save money 
>> there too. I am running a 24core ThreadRipper, 4bay NAS, 1 POE router, 1 
>> non-POE router, HAM radio, laser printer, and 4 raspberry PI in a 
>> cluster with 2 running pi-hole plus an entertainment NUC in the front. 
>> Our bill goes down a lot in winter. I pay about $75 per month from Jan - 
>> May and then in June it ramps up hard and then goes back down again.
>> 
>> I don't know the figures but I doubt that a 250W desktop costs $22 per 
>> month in electricity. But if you are REALLY worried about it, switch to 
>> a raspberry pi or beaglebone cluster over POE. If your workload is 
>> capable of taking advantage of parallel processing, it would probably 
>> save time and money (and look cool which is what really matters right...?)
>> 
>> If you need to be exact, you can buy a device that measures at the plug 
>> and you can monitor your computer to get exact figures.
>> 
>> On 7/21/21 7:33 AM, Keith Smith via PLUG-discuss 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.
>> >
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