Cyclone
Cyclonic Member ((.oO))
View attachment 221785 How does Teslafi compute the KWh used and added and what is the difference between the two? Is it a guestimate or is it actual usage?
I am trying to figure out why my electric bill is so high so I signed up for Teslafi and installed a Sense. There is a discrepancy between Teslafi and Sense as far as total KW used. For example, this morning the charging numbers for the total amount of KWh my house has used is at 44kwh. There is no way I used up so much besides the Tesla. It's also possible the Sense is off a little with total usage.
TeslaFi is taking the numbers from the car's reporting via the API. Used is how much AC power the chargeport is taking in and added is how much DC power is put into the battery. There are conversion losses as well as losses to the wiring and the overhead of the charging systems (like the battery heater/cooler and other components).