For the monitor install I’d do it myself…I’m comfortable enough with carefully working around existing stuff (I actually installed CTs and analog meters for the generator circuit to balance the load from “cold and dark”) but I wouldn’t do new circuits and similar myself…if only for the potential liability. Hated spending over $1K for the generator interlock that is only like $200 in parts, but if something goes wrong and sets the house on fire if the insurance complains I can cite the licensed electrician who did the modifications. I’ll do 1:1 swaps and add low voltage probes and such but I don’t like the liability of engineering major changes with higher power on them. I know how to do it, I could do it, I just don’t like doing that stuff as its outside my usual comfort unless I have no choice. Mistakes or oversight can be too costly.
I don’t actually know the base-load here but my crude measurements based on the power-meter readings and math puts me around 2kWH/hour minimum or 20kWH/hour at the upper end. I can read the meter with a SDR and log it (rtlamr) but it only gives me snapshots with poor resolution, I can’t see what the draw is in real-time and certainly not per-circuit like I want.
I know I cut a significant bit off when I got a “power saving” power strip for the AV gear in the TV, according to the UPS its all on that dropped about 150 idle-watts between the game systems, set top players, etc. by having it kill the power to them when the TV is off…only downside is it takes half a minute for anything to “boot up” when you want to use it (which isn’t often). I know my computer rack (homelab server+networking gear) runs around 300W 24x7 because I can read the UPS stats. I hate to think what my WFH laptop is probably chewing up (its a higher end machine 120W brick).