this post was submitted on 14 Jun 2025
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Power consumption is a massive reason to really not do that. Its cheap for a reason, its takes a shitload of power to be shit and you will pay more in energy than you save in hardware unless its only powered on for short periods of time - a server typically isn't.
This is actually something that applies to cheap products too. Was in Asda a little while ago and saw 2 LED bulbs with the same lumen rating. Cheaper one used 3w more and you only saved £1. Running it for 8 hours a day for a year would cost double that saving in electricity. For a server you are looking at almost £2 per watt each year. Does that ewaste look so good to you now?
Some things are absolutely worth getting second hand, but you really should be careful considering the power cost as well.
Quick edit: If you don't need it running 24/7, consider something like AWS too. I love selfhosting but if its not running much it might be cheaper to not bother buying hardware.
A good "rule of thumb" to remember: if your electricity rates average (somewhere near) $0.11/kWh you can take the average power draw of a device in watts and that is equal to what it will cost to run that device 24-7 for 365 days.
So, if that cheap PC draws 50W more than an alternate solution, it's costing you $50 more per year to use it.
Some tasks are beyond any RasPi, but it's well worth evaluating if something like an N100 fanless mini-PC can handle it instead of loading up some Core i7 rig that's going to cost more to run in the first year than the N100 costs to buy.
Your energy is clearly a low cheaper than mine then.
Well, the idea scales, if your energy is 0.33 Euro per kWh take the watts x 3 and that's your annual running cost.