Electrical costs to run a home web server

[techlists at phpcoderusa.com]

Unfortunately that is not the case given I am adding a PHP hosting 
server.  It for learning otherwise it would be in a data center.


On 2021-07-21 10:32, Bob Elzer via PLUG-discuss wrote:
> Well if you think about it, before you decided to run your computer
> 24/7 you probably have been running it about half that. Say 8-12 hours
> a day. So your actual cost is most likely only half of what you
> calculated.
> 
> On Wed, Jul 21, 2021, 7:34 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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