$18.38full charge
The EX90 PLUS_TWIN (106 kWh) costs about $18.38 to charge fully at South Carolina's average home rate of 15.76¢/kWh, including about 10% charging loss (116.6 kWh from the wall). That is $6.17 per 100 miles.
EIA residential average, South Carolina, 2026-08 (latest in this book). No South Carolina gasoline series, so this uses PADD 1C regular, week of Oct 19, 2026.
At 1,000 miles a month and 30 mpg, home charging costs $61.66 and the gas car costs $128.67. The EV saves $67.00 a month at $3.860/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time is 10–80% in 22 min at up to 250 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.