The cost to charge an electric vehicle (EV) varies depending on the price of electricity at different charging sites (home, workplace, public), by region and time of day, vehicle use, and for different charging power levels and equipment/ installation costs. We report state-level charging costs under alternative scenarios, showing major variability owing to regional heterogeneity and different charging strategies. We also calculate the lifetime fuel cost savings of an EV compared with those of a gasoline vehicle while accounting for regional gasoline price variations.

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