$12.14full charge
The EX30 PLUS_SINGLE (69 kWh) costs about $12.14 to charge fully at Iowa's average home rate of 15.99¢/kWh, including ~10% charging loss (75.9 kWh from the wall). That is $4.65 per 100 miles.
EIA residential average, Iowa, 2026-07 (latest in this book). No Iowa gasoline series, so this uses PADD 2 regular, week of Oct 5, 2026.
At 1,000 miles a month and 30 mpg, home charging costs $46.50 and the gas car costs $136.97. The EV saves $90.47 a month at $4.109/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time to 80% is 26 minutes at up to 153 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.