> What you are saying makes sense. If you are running other valuable apps, then it isn't a waste.
'Valuable' is pretty subjective though. Most of the services are for entertainment purposes. But I also host quite a few useful things such as Bitwarden and CouchDB for Obsidian Sync.
> I calculated 20.9kg / user / year.
You are right. I forgot the 24 hours in my calculation:
(0,0191 * 250 * 365,25 * 24) / 1000
I also noticed that my comment was incorrectly formatted. I've since edited my original comment. If I factor in my complete homelab I use about 40Wh, which corresponds with about 90kg of CO₂ yearly. Which doesn't sound all that bad to me.
I am curious though, how did you come to 1.75kg per user? I calculated 20.9kg / user / year.
250/1000/1000 kgCO₂eq/Wh x 19.1 Wh x 8760 hours in a year / 2 users = 20.9 kg / user / year