After 1 year with the Model 3 Standard Plus (55KWh), I spent 3285 KWh in charge, while only 2688 KWh was delivered (and then available) by the battery. It represents a 18% loss.
Charging most of time at 240V, 3x5A. Rarely 3x16A or superchargers.
Up to now, I was thinking that a lower power...