Forward-thinking organizations like Frito-Lay, Google, Hertz and Staples have embraced plug-in hybrid vehicles (PHEVs) for more than a decade, showcasing their commitment to a greener future. This year, PHEV sales in the United States surged by 20%, and there are now more than 860,000 PHEVs on the road. Their popularity is fueled by the flexibility that PHEVs provide to drivers, who can use 100% electricity for short trips, and avoid range anxiety during longer voyages when the vehicle switches over to gas.