A 4-year long MIT study has proven that EVs can meet the majority of the needs of drivers today. And this is assuming that they are using "today's" EVs and not any of the upcoming longer ranged EVs that are planned. Here's a quote from the article (which can be found here): "By working out formulas to integrate the different sets of information and thereby track one-second-resolution drive cycles, the MIT researchers were able to demonstrate that the daily energy requirements of some 90 percent of personal cars on the road in the U.S. could be met by today's EVs, with their current ranges, at an overall cost to their owners—including both purchase and operating costs—that would be no greater than that of conventional internal-combustion vehicles. The team looked at once-daily charging, at home or at work, in order to study the adoption potential given today's charging infrastructure." A link to the actual MIT study can be found in the above article.