$22.84full charge
The S e-tron GT Premium Plus (97 kWh) costs about $22.84 to charge fully at Maryland's average home rate of 21.41¢/kWh, including ~10% charging loss (106.7 kWh from the wall). That is $7.61 per 100 miles.
EIA residential average, Maryland, 2026-07 (latest in this book). No Maryland gasoline series, so this uses PADD 1B regular, week of Oct 5, 2026.
At 1,000 miles a month and 30 mpg, home charging costs $76.15 and the gas car costs $145.43. The EV saves $69.29 a month at $4.363/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time to 80% is 22 minutes at up to 320 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.