$19.04full charge
The iX3 50 xDrive (109 kWh) costs about $19.04 to charge fully at Texas's average home rate of 15.88¢/kWh, including ~10% charging loss (119.9 kWh from the wall). That is $4.97 per 100 miles.
EIA residential average, Texas, 2026-07 (latest in this book). EIA weekly retail regular, Texas, week of Oct 5, 2026.
At 1,000 miles a month and 30 mpg, home charging costs $49.71 and the gas car costs $129.13. The EV saves $79.42 a month at $3.874/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time to 80% is 21 minutes at up to 400 kW. A full home charge is a different session. This page prices the energy from the wall, not how long a Level 2 charger takes.
This page uses the residential rate. Public fast-charging prices are a separate scenario and are not included.