$15.07full charge
The i5 eDrive40 (84 kWh) costs about $15.07 to charge fully at West Virginia's average home rate of 16.31¢/kWh, including about 10% charging loss (92.4 kWh from the wall). That is $4.86 per 100 miles.
EIA residential average, West Virginia, 2026-08 (latest in this book). No West Virginia 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 $48.61 and the gas car costs $128.67. The EV saves $80.05 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 30 min at up to 205 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.