[alex3305]

> I appreciate the intent of this project, but it is not a sustainable approach.

Self-hosting anything isn't sustainable. Even your modem or router isn't sustainable. But having additional backups and privacy is worth something for me. However since I'm in Europe, electricity prices here are through the roof and I try to minimize power where possible. I self host Immich on my Intel Celeron J1800 NAS that uses 19.1Wh on average. I cannot run any ML stuff that it comes with though. But for me the carbon intensity should be about 250 gCO₂eq/kWh [1]. So running my NAS produces about 42 Kg of CO₂ per year for 2 users [2]. Including 10 or so additional applications besides Immich. That sounds pretty reasonable to me.

1. https://www.eea.europa.eu/ims/greenhouse-gas-emission-intens...

2. ((0,0191 * 250 * 365,25 * 24) / 1000)

[matthiasb]

What you are saying makes sense. If you are running other valuable apps, then it isn't a waste.

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

[alex3305]

> 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.