As increasing numbers of electric vehicles enter the global market over the next few years, more than 4.7 million charging stations will be accessible worldwide by 2015, with nearly 1 million of the those expected
in the U.S., according to a new study. Of the 974,000 charging stations predicted in the U.S., about 64 percent will be charging units in residences, according to Pike Research. Across Asia and Europe, where multi-family housing is more common, only about 35 percent of charging stations will be residential, with a greater percentage of consumers relying on public or commercial stations to charge their vehicles, according to the study. In addition, North America will see a higher percentage of plug-in hybrid vehicles, which require less charging infrastructure because they have smaller battery packs and gasoline engines that allow vehicles greater range.