Energy saving with S3 sleep. 
Energy costs here in UK are skyrocketing. I was just told my electricity bill is increasing my 80% from April with another increase expected in October. My current setup is an i3 system with Unraid and 40TB of storage but also running loads of services in docker.
I also have 2 raspberry pi 3b running pihole. This entire setup uses about 3kWh/day which isn't bad but it's 25% of my entire electric bill so I'm wondering if I can save any. I don't need access to my files 24/7 and notice Unraid supports S3 sleep but I'd want some automation around this so I'm not always turning it on and off. Are there any options for this?