So, I drove the first 20000 km with my BMW i3 without any problem!
I used 3547 solar kWh (real external measurement
) and 11 litres of gasoline for the Rex.
And I never used any public charging station.
For more details, see:
Auto - geen energierekening meer: energieneutraal woonhuis fam. Kriegsman Ootmarsum
It's in Dutch, but Google Translate might help.