My current setup uses ~180W, which is a lot, but WAY better than my previous one, which was ~600W. Power is cheap where I live, so I'm not too worried about it.
180W homelab:
N6005 fanless mini PC running pfsense
mikrotik CRS310-8G+2S+IN switch
TP-Link AP225 access point
Server running proxmox w/ AMD 5900X, RTX 3080, 128GB ECC RAM, LSI-9208i w/2x10TB drives, and dual SFP+ NIC
600W homelab:
Aruba 24-port PoE gigabit switch w/ 4xSFP+ ports
Dell R720xd fully kitted out w/ 12x 6TB drives, 2x 512GB SSD, 2x 32GB SD cards, 100-something GB RAM, 2x whatever the best CPU was for that unit
Dell R710 w/ 6x 6TB drives, 1x 256GB SSD, 100-something GB RAM, 2x whatever the best CPU was for that unit.