Energy usage difference between app and sensor

[kerzo]

What happened?
The energy sensor in Home Assistant is reporting a lower value compared to what's in the app - looks to be about 9.2% lower in both cases.

9th April

13th April

To Reproduce
Multiple charging sessions in the past week

Expected behavior
I would expect the two energy values to align between the app and Home Assistant

Log Output
Haven't seen any log entries for errors or warnings.

Home Assistant Version

Integration Version
v0.8.2

[dan-r]

Unfortunately this is an API limitation - the live Wh delivered figures never line up exactly with the past statistics values.

However, now you mention it, the difference with my values also tends to be 9.2%, but I dont think its consistent enough to just inflate this sensor by this.

I'll have a play about with this over my next couple of charges and see what I can do.

[kerzo]

Thanks @dan-r

I'm happy to help out with any testing as well!

[dan-r]

@kerzo I've noticed that the two values are within ~4% of each other over the past week or so... are you still seeing a bigger difference?

[kerzo]

@kerzo I've noticed that the two values are within ~4% of each other over the past week or so... are you still seeing a bigger difference?

Still seems quite random, last charge was 6%, one before that was within 0.1kWh and the one before that was 9.8%!

Disappointed it isn't more uniform as it could be ok to adjust the calculation but don't see any pattern to it now unfortunately

[dan-r]

@kerzo have you had a chance to test this with the new app to see if its any different?

[kerzo]

Still about 10% overreported in Home Assistant compared to the app