I wonder if my system is good or bad. My server needs 0.1kWh.
Yeah but tbh it’s understandable that OP got confused. I think he just means 100W
He might, but he also might mean that he has a power meter that is displaying Kwh since last reset and he plugged it in and then checked it again later when it was all set up after an arbitrary time period and it was either showing the lowest non-zero value it was capable of displaying or was showing a number from several hours.