[Aldipower]

This does not pay out in Germany due to the high energy costs in private house holds or office spaces.

[Eduard]

With 0.40 EUR/kWh, running a beefy 100 Watt NAS setup will cost 0.96 EUR per day.

[Aldipower]

Yes, around 30 Euro per month. Now add the hardware costs.. And the internet connection costs (partly).. Anti-theft options.. In my opinion it is cheaper and more reliable to rent another dedicated server at another hoster for this. If you are sitting in Germany.

[meltedcapacitor]

For a "small server/NAS"?