$30.81full charge
The EV9 Light Long Range RWD (99 kWh) costs about $30.81 to charge fully at Rhode Island's average home rate of 28.29¢/kWh, including ~10% charging loss (108.9 kWh from the wall). That is $10.10 per 100 miles.
EIA residential average, Rhode Island, 2026-07 (latest in this book). No Rhode Island gasoline series, so this uses PADD 1A regular, week of Oct 5, 2026.
At 1,000 miles a month and 30 mpg, home charging costs $101.01 and the gas car costs $144.77. The EV saves $43.76 a month at $4.343/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time to 80% is 24 minutes at up to 350 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.