Avarage load for me is around 300w running two T320s, a R510, and a NUC. The T320s are clustered running plex, 'arrs, pihole/unbound, game servers, and odoo. The nuc serves two purposes, firstly to keep quorum in the cluster and secondarily as a low power device to run a secondary pihole/unbound instance incase the power goes out as it's the only server that will stay on UPS power until the battery runs out. The R510 is my storage server with around 56TB and growing.
I am planning on adding a GPU server with a few tesla P40s as I've been using my workstation for these tasks which makes it difficult to use it for work.