Tag: energy

Kill-A-Watt Tour of Every Box in the Rack

Measure real homelab power draw box by box: wall meter vs smart plug, UPS, IPMI and RAPL, which numbers lie, and how to log watts to CSV and average them.

Power Math: Watts, Heat, and Your Electric Bill

Calculate true energy costs: watts, kWh, BTU output, and 5-year TCO for homelab hardware swaps. When efficiency pays back.