Looking at some old photos from 2018 on idle it takes around 7.7-15W, don't recall what I had running on it at the time. Probably Plex.
Not sure on remote turn on. I've got it on a UPS which usually holds it over any short power cuts. I don't think it auto powers on after extended power cut, but I've also not looked into if it's possible to enable.
Also, according to this https://wiki.debian.org/WakeOnLan, I checked my Mac, and both Supports Wake-on and Wake-on was "g", so in theory, WoL should work too.
Not sure on remote turn on. I've got it on a UPS which usually holds it over any short power cuts. I don't think it auto powers on after extended power cut, but I've also not looked into if it's possible to enable.
Edit, looks like you can enable auto boot: https://www.reddit.com/r/Proxmox/comments/vf8cv4/mac_mini_au...
Also, according to this https://wiki.debian.org/WakeOnLan, I checked my Mac, and both Supports Wake-on and Wake-on was "g", so in theory, WoL should work too.