this post was submitted on 06 Jun 2025
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I have been using an old PC as NAS and running docker containers (Immich, Nextcloud, paperless-ngx etc.). I got 5 3.5" HDD disks and a Nvme. Even on idle, I am consuming 50-60w. A friend of mine is selling a Qnap NAS which is a dedicated machine and probably consumes less power, although I don't know if it's worth it.

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[–] smq@discuss.tchncs.de 5 points 1 year ago (3 children)

How do you monitor power consumption? I'm new to self hosting and I want to do that.

[–] greybeard@feddit.online 9 points 1 year ago

I use a KillaWatt device. It is a simple device you plug into the outlet and then plug the device you want to measure into it. I've had mine for a long time so I have no idea what a new one would cost, but I'm guessing sub $30.

[–] Novocirab@feddit.org 6 points 1 year ago* (last edited 5 months ago) (1 children)

Some local libraries or ecological initiatives lend devices to measure electricity consumption at the power plug. In particular, this is useful to measure other appliances as well.

Specifically for computers, they probably have some means to tell you their own consumption, but they may not be accurate or complete and will most certainly omit any peripherals, e.g. external hard drives.

[–] smq@discuss.tchncs.de 4 points 1 year ago

Thank you! I will see if I can get my hands on one of those.

[–] atk007@lemmy.world 3 points 1 year ago

I actually have an extension cord with IoT chip. Can measure power consumption via home assistant.