$17.31full charge
The Kona Electric SE (49 kWh) costs about $17.31 to charge fully at Maine's average home rate of 32.11¢/kWh, including about 10% charging loss (53.9 kWh from the wall). That is $8.65 per 100 miles.
EIA residential average, Maine, 2026-08 (latest in this book). No Maine gasoline series, so this uses PADD 1A regular, week of Oct 19, 2026.
At 1,000 miles a month and 30 mpg, home charging costs $86.54 and the gas car costs $141.63. The EV saves $55.10 a month at $4.249/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time is 10–80% in 43 min (estimate) at up to 75 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.