Parking reservations can reduce the amount of time lost by drivers searching for parking spaces near their destination. For the development and planning of smart cities with electric vehicles, it is important to control parking spaces as places for charging and power management with Vehicle-to-Grid systems. This study proposes an auction-based parking reservation system that includes electricity trading, and uses simulation combined with a driver parking duration model to evaluate it. The driver parking duration model is constructed using actual parking data that can estimate parking times after parking fees have changed. © 2013 IEEE.