Potomac Edison is offering residential EV drivers incentives to charge during off-peak hours. In the EV Only TOU Rate program, residential customers can save 2¢ per kilowatt-hour (kWh) by using their smart EV chargers between 11 p.m. and 6 a.m. and on holidays and weekends. Off-peak weekend hours start at 11 p.m. each Friday and end at 6 a.m. each Monday. In order to enroll, you must have an eligible charger.