Around 5kWh/day.
My Biggest Power drain is my homeserver/hypervisor/nas/whatever (5600G, 64gb ram, 9xHDD) which uses around 3.5kWh.
Wifi is provided by 2x Extreme Networks WS-AP3825i and 2x Ubiquiti UniFi 6 Plus which total to around 660W/h.
My Router is a small dual-nic shuttle pc with a Pentium G4560 drawing like 310W/h
Switching is done by an Aruba 2930F-24G-4SFP+ Switch that consumes 490W/h
I could probably squeeze out a few more watts if I replace the HDD’s with higher density ones and virtualise my router but I really dont feel like doing that right now…
Currently running OPNsense on a small Dual-Nic Shuttle PC with an Pentium G4560 and 4 gigs of ram and it’s been handling everything I throw at it perfectly fine. Ive got 16 Interfaces, around 10 Wireguard Peers and a SIT tunnel to HE and Im still getting Line Speeds through the firewall.