this post was submitted on 25 Dec 2024
103 points (89.3% liked)

Selfhosted

40749 readers
471 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 2 years ago
MODERATORS
 

I wonder if my system is good or bad. My server needs 0.1kWh.

top 50 comments
sorted by: hot top controversial new old
[–] [email protected] 2 points 4 hours ago

45 to 55 watt.

But I make use of it for backup and firewall. No cloud shit.

[–] [email protected] 5 points 13 hours ago (1 children)

Between 50W (idle) and 140W (max load). Most of the time it is about 60W.

So about 1.5kWh per day, or 45kWh per month. I pay 0,22€ per kWh (France, 100% renewable energy) so about 9-10€ per month.

[–] [email protected] 2 points 12 hours ago (1 children)

Are you including nuclear power in renewable or is that a particular provider who claims net 100% renewable?

[–] [email protected] 3 points 11 hours ago* (last edited 7 hours ago) (1 children)

Net 100% renewable, no nuclear. I can even choose where it comes from (in my case, a wind farm in northwest France). Of course, not all of my electricity come from there at all time, but I have the guaranty that renewable energy bounds equivalent to my consumption will be bought from there, so it is basically the same.

[–] [email protected] 2 points 11 hours ago

Thanks. I buy Vattenfall but make net 2/3rds of my own power via rooftop solar.

[–] Lucidlethargy -2 points 8 hours ago (1 children)

Mine runs at about 120 watts per hour.

[–] [email protected] 3 points 6 hours ago

Please. Watt is an SI unit of power, equivalent of Joule per second. Watt-hour is a non-SI unit of energy( 1Wh = 3600 J). Learn the difference and use it correctly.

[–] [email protected] 2 points 14 hours ago

My server uses about 6-7 kWh a day, but its a dual CPU Xeon running quite a few dockers. Probably the thing that keeps it busiest is being a file server for our family and a Plex server for my extended family (So a lot of the CPU usage is likely transcodes).

[–] [email protected] 2 points 14 hours ago (3 children)

Is there a (Linux) command I can run to check my power consumption?

[–] [email protected] 1 points 1 hour ago

If you have a server with out-of-band/lights-out management such as iDRAC (Dell), iLO (HPe), IPMI (generic, Supermicro, and others) or equivalent, those can measure the server's power draw at both PSUs and total.

[–] [email protected] 7 points 14 hours ago (1 children)
[–] [email protected] 3 points 13 hours ago* (last edited 13 hours ago)

Or smart sockets. I got multiple of them (ZigBee ones), they are precise enough for most uses.

[–] [email protected] 2 points 12 hours ago

If you have a laptop/something that runs off a battery, upower

[–] [email protected] 10 points 21 hours ago (4 children)

I came here to tell my tiny Raspberry pi 4 consumes ~10 watt, But then after noticing the home server setup of some people and the associated power consumption, I feel like a child in a crowd of adults 😀

[–] [email protected] 1 points 2 hours ago

I'm using an old laptop with the lid closed. Uses 10w.

All in, including my router, switches, modem, laptop, and NAS, I'm using 50watts +/- 5.

It does everything I need, and I feel like that's pretty efficient.

[–] [email protected] 1 points 3 hours ago

Quite the opposite. Look at what they need to get a fraction of what you do.

Or use the old quote, "they're compensating for small pp"

[–] [email protected] 3 points 12 hours ago

I have an old desktop downclocked that pulls ~100W that I'm using as a file server, but I'm working on moving most of my services over to an Intel NUC that pulls ~15W. Nothing wrong with being power efficient.

[–] [email protected] 3 points 18 hours ago

we're in the same boat, but it does the job and stays under 45°C even under load, so I'm not complaining

[–] [email protected] 24 points 1 day ago

Mate, kWh is a measure of electricity volume, like gallons is to liquid. Also, 100 watt hours would be a much more sensical way to say the same thing. What you've said in the title is like saying your server uses 1 gallon of water. It's meaningless without a unit of time. Watts is a measure of current flow (pun intended), similar to a measurement like gallons per minute.

For example, if your server uses 100 watts for an hour it has used 100 watt hours of electricity. If your server uses 100 watts for 100 hours it has used 10000 watts of electricity, aka 10kwh.

My NAS uses about 60 watts at idle, and near 100w when it's working on something. I use an old laptop for a plex server, it probably uses like 50 watts at idle and like 150 or 200 when streaming a 4k movie, I haven't checked tbh. I did just acquire a BEEFY network switch that's going to use 120 watts 24/7 though, so that'll hurt the pocket book for sure. Soon all of my servers should be in the same place, with that network switch, so I'll know exactly how much power it's using.

[–] [email protected] 3 points 18 hours ago

With everything on, 100W but I don't have my NAS on all the time and in that case I pull only 13W since my server is a laptop

[–] [email protected] 2 points 18 hours ago
[–] [email protected] 41 points 1 day ago* (last edited 1 day ago) (16 children)

kWh is a unit of energy, not power

load more comments (16 replies)
[–] [email protected] 25 points 1 day ago (4 children)

Idles at around 24W. It’s amazing that your server only needs .1kWh once and keeps on working. You should get some physicists to take a look at it, you might just have found perpetual motion.

load more comments (4 replies)
[–] 31337 2 points 23 hours ago

The PC I'm using as a little NAS usually draws around 75 watt. My jellyfin and general home server draws about 50 watt while idle but can jump up to 150 watt. Most of the components are very old. I know I could get the power usage down significantly by using newer components, but not sure if the electricity use outweighs the cost of sending them to the landfill and creating demand for more newer components to be manufactured.

load more comments
view more: next ›