Plug-in vehicles have offset 216 million gallons of gasoline consumption in the United States in all of 2017.

According to the US Energy Information Administration (EIA), plug-in vehicles displaced 216 million gallons last year, a 39-percent increase over 2016 and a 50-percent increase over 2015. For reporting purposes, plug-in vehicles classify as all-electric and plug-in hybrid vehicles, where the latter was responsible for 60 percent gas displacement in 2017 overall.

“Plug-in vehicles, which include all-electric (BEV) and plug-in hybrid electric vehicles (PHEV), have been saving increasing amounts of gasoline,” says. “When gasoline consumption of conventional internal combustion engine (ICE) vehicles is compared with similar sized plug-in vehicles operating on electricity, plug-in vehicles on the road displaced 216 million gallons of gasoline in 2017. Gasoline displacement from plug-in vehicles is about 39% more than it was in 2016 and about twice as much as 2015.”

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As plug-in vehicles become more commonplace going forward, this figure is only set to climb. Multiple automakers have committed to electrifying their entire vehicle lineups within a certain timeframe, including Volvo and Infiniti.