I haven't performed any exact measurements, but my best guess is $1.11 USD to charge the CE 04 from 0-100% where I live:
- BMW CE 04 usable battery size: 8.5kWh
+ 10% energy loss from AC to DC conversion (0.85kWh)
- Total input expected for a 0-100 charge: 9.35kWh
- Power cost: $0.12USD/kWh
-...