Plug-In Hybrid (PHEV) & Extended-Range Electric Vehicles (EREVs) 
 
PHEVs and EREVs are powered by both electricity and gasoline and are similar to conventional hybrid vehicles. Both have large batteries and must be plugged in to recharge. PHEVs are usually designed with "electric only" ranges of 10 to 40 miles and equipped with gasoline engines to achieve higher speeds. EREVs are propelled solely by electric motors. The gasoline engine kicks in after the battery discharges to a certain level. The gasoline engine powers a generator that keeps the battery at that charge level when driving.

Examples
  • Chevrolet Volt (EREV)
  • Toyota Prius (PHEV)
  • Ford C-Max Energi (PHEV)

Advantages

  • Reduced fuel consumption and tailpipe emissions compared to both hybrid and conventional gasoline¬†vehicles
  • Gasoline backup provides up to 300 miles or more of combined driving range
  • Gasoline fuel efficiencies of up to 100 miles per gallon or more
  • Lower fueling costs in the "electric only" mode (see Fueling Cost Comparison Table)

Things to Consider Before Purchasing
  • Multiple fuels to manage - electricity and gasoline
  • The vehicle's "electric only" mileage range compared to your daily commute
  • Long trips are possible with the gasoline backup
  • Greater complexity and added weight due to multiple engines and powertrains
  • Short "electric only" range makes overnight charging possible using a 120-volt household outlet
Plug-In Hybrid (PHEV) & Extended Range Electric Vehicles (EREVs), phev, erev, plug in hybrid, plug-in hybrid, Extended Range Electric Vehicles
 
 
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