$21.31full charge
The EQS Sedan 500 4MATIC (122 kWh) costs about $21.31 to charge fully at Texas's average home rate of 15.88¢/kWh, including ~10% charging loss (134.2 kWh from the wall). That is $4.81 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 $48.11 and the gas car costs $129.13. The EV saves $81.03 a month at $3.874/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time to 80% is 30 minutes at up to 430 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.