How do you accurately measure how much current a PC is drawing at any given time...

PeterStuer · 2025-09-03T05:33:20 1756877600

Yes, I have one of those for my homelab. I draw about 200W on average, but it can spike to about 1000W.

drnick1 · 2025-09-03T00:45:48 1756860348

You can use "smart" plug such as the Sonoff S31 (flash ESPHome to make it cloud-free).

Arnavion · 2025-09-03T01:35:28 1756863328

And for one-off testing there's the standard P3 Kill-a-watt.

01HNNWZ0MV43FF · 2025-09-03T04:40:03 1756874403

Works good IME, but you have to plug it into the wall first. Sometimes if you plug the appliance in, and then plug the KAW in, it will miscalibrate

Spooky23 · 2025-09-03T01:55:48 1756864548

I have it plugged into a IKEA smart plug.