$19.70full charge
The Taycan GTS (105 kWh) costs about $19.70 to charge fully at Iowa's average home rate of 17.06¢/kWh, including about 10% charging loss (115.5 kWh from the wall). That is $6.73 per 100 miles.
EIA residential average, Iowa, 2026-08 (latest in this book). No Iowa gasoline series, so this uses PADD 2 regular, week of Oct 19, 2026.
At 1,000 miles a month and 30 mpg, home charging costs $67.25 and the gas car costs $138.17. The EV saves $70.92 a month at $4.145/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time is 10–80% in 18 min 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.