My nas takes about 40 Wh. And my network machine (proxmox + openwrt) about 20 Wh. When I upgraded my nas a year ago it was actually drawing twice as much, I have since then switched to more efficient processor (amd from normal to E) and I took out graphic card that I didn’t use. I could have in theory merge those two, but I wanted to separate networking from nas+apps. I don’t know how much my smart devices take but I don’t have many so it can be up to 50 Wh total maybe. But that is more smart home than self hosting 😀