thats something I've not tried to quantify yet
My home office draws around 250-300 watts most of the time, feeding
- SmartUPS 1200 UPS that powers...
- always on main PC desktop
- 2 IPS 1920x1200 24" montors for desktop, on when I'm using it
- several network switches
- HP MicroServer truenas box (20TB usable)
- PoE switch running 3 PoE cameras, plus a Unifi U6-LR
- HP EliteDesk Mini 800 G2 based NVR
- 24" wall mount monitor for NVR, always-on
- bunch of USB chargers. desktop sound.
- stuff I'm probably forgetting.
The main router, switch, and cable modem are in a different room because (reasons) and are on their own consumer 600W UPS that has a newish battery.
ok, cool, I have a power monitor on the router/switch/modem, they draw 40-60 watts combined. The SB cable modem gets way warm so probably draws 4X what my 7-9 watt APU2 draws. then there's a 24 port gigE HP switch, and a POE injector for another Unifi U6