Electrical costs to run a home web server

Fri Jul 23 10:26:10 MST 2021

My friend has a Blue host shared account and he is looking for a better 
host.  He says they are too slow.

If the VPS has at least 2 cores, 4GB of RAM, and root/ssh, that is a 
great deal!!

On 2021-07-23 08:09, Stephen Partington via PLUG-discuss wrote:
> For cost/efficiency, it is hard to beat some of the online hosting
> options. Dreamhost has a shared plan with unlimited everything and a
> domain for 9 per month (down to 3 for 1 or 3 years paid upfront) 10
> per month Ifor a VPS.
> 
> On Thu, Jul 22, 2021 at 3:45 PM Brian Cluff via PLUG-discuss
> <plug-discuss at lists.phxlinux.org> wrote:
> 
>> I think you'll find that server of yours used closer to $500 than
>> $120.  Based on the 600watt number that you gave your usage would
>> look like this on SRP right now under their normal flat rate plan:
>> 
>> Months
>> Number of Days
>> Kwh Cost
>> Machine Load in Kilo watts
>> Cost per hour(KWH cost times wattage)
>> Cost per day(Cost per hour time 24 hours)
>> Total Cost (Cost per time period)
>> 
>> May, Jun, Sep, Oct
>> 122
>> 0.1091
>> 0.6
>> 0.06546
>> 1.57104
>> 191.66688
>> 
>> Jul,Aug
>> 62
>> 0.1157
>> 0.6
>> 0.06942
>> 1.66608
>> 103.29696
>> 
>> Nov, Dec, Jan, Feb, Mar, April
>> 182
>> 0.0782
>> 0.6
>> 0.04692
>> 1.12608
>> 204.94656
>> 
>> Grand Total
>> 499.9104
>> 
>> Even if you machine used half the power you specified it would still
>> be about twice what you thought it was.
>> 
>> I always recommend that people don't use their old computers when it
>> comes to use cases like using them for routers  because it's MUCH
>> cheaper to buy something like a PI or a dedicated router than it is
>> pay for power to feel a machine that uses waaay more than you need
>> to.
>> With a raspberry pi under worst case useage with it being use to
>> 100% capacity you'd only get charged $6.32 per year, but it would
>> most likely be closer to it's idling cost of $2.82 for power:
>> 
>> Months
>> Number of Days
>> Kwh Cost
>> Machine Load in Kilo watts
>> Cost per hour(KWH cost times wattage)
>> Cost per day(Cost per hour time 24 hours)
>> Total Cost (Cost per time period)
>> 
>> May, Jun, Sep, Oct
>> 122
>> 0.1091
>> 0.0076
>> 0.00082916
>> 0.01989984
>> 2.42778048
>> 
>> Jul,Aug
>> 62
>> 0.1157
>> 0.0076
>> 0.00087932
>> 0.02110368
>> 1.30842816
>> 
>> Nov, Dec, Jan, Feb, Mar, April
>> 182
>> 0.0782
>> 0.0076
>> 0.00059432
>> 0.01426368
>> 2.59598976
>> 
>> Grand Total
>> 6.3321984
>> 
>> Brian Cluff
>> 
>> On 7/21/21 3:50 PM, Eric Oyen via PLUG-discuss wrote:
>> 
>> 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
>> <plug-discuss at lists.phxlinux.org> 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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> 
> Stephen
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