Workplace Charging Accounts for About a Third of All Plug-in Vehicle Charging Sessions in the INL EV Project Study

Idaho National Laboratory (INL) performed a study for the Department of Energy called the EV Project. This project collected data in 22 regions across the country from more than 8,000 privately owned Nissan Leafs and Chevrolet Volts for a three-year period between January 1, 2011 and December 31, 2013. The study revealed that nearly all-participant charging occurred at home or at work while other charging sites accounted for less than 5% of all charging sessions. Although the Nissan Leaf is an all-electric vehicle while the Chevrolet Volt is a plug-in hybrid, both models had similar charging patterns with more than half of all charging sessions at home and about a third of charging sessions at work.