I have seen this question asked, but I didn’t see any answer on any of the threads where it was asked.
For HOME charging, the Total Charging Cost seems to be based on the kWh added to the battery, not the kWh used by the charger …. This seems like a flawed calculation.
I have a v3 wall connector, and I can see the watts used by the charger through the API, and it matches almost exactly (within 1 kWh over the course of a month) to the “kWh used” as reported by TeslaFi.
My electric bill will reflect the kWh used, not the kWh added - so in my mind, TeslaFi should change the logic. Otherwise all of the data collection is for nothing, considering that the financial calculation is off by ~25%.
Knowing how much electricity my car theoretically would have consumed under ideal conditions without any losses is not a valuable thing to know …. Knowing how much money I actually spent on electricity for my car is in fact exactly why I am using TeslaFi - and now it turns out this isn’t even what it is telling me.
Customer support service by UserEcho