Something remarkable happened last year: The country’s mix of alternative-fueling infrastructure for cars suddenly flipped from being dominated by biofuels and lighter fossil-fuel byproducts to being primarily composed of electric charging stations—at least if you go by the pure numbers.There is an asterisk by “Electric” in the legend of the chart above, and the footnote says that each individual charging port is counted separately. But there were still 13,392 electric-vehicle chargers by the end of 2012, and even if the number is inflated by four or five times, it still outstrips the 2,654 stations for the nearest competitor—propane. If that sudden spike in growth is the beginning of a trend, electric chargers will be in the clear majority soon.
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