Plug-in hybrid electric vehicles (PHEVs) are vehicles that combine an internal combustion engine with an electric motor and rechargeable battery.

They can be charged by plugging into an external power source or through regenerative braking while driving. PHEVs offer the flexibility of running on both electric power and gasoline, allowing for extended driving ranges.

They can operate in electric mode for shorter trips and switch to the gasoline engine for longer distances, providing a balance between electric and traditional fuel capabilities. PHEVs provide environmental benefits by reducing tailpipe emissions compared to conventional vehicles.

When running in electric mode, they produce zero emissions, contributing to improved air quality and reduced greenhouse gas emissions. PHEVs typically have a shorter all-electric range compared to pure battery electric vehicles (BEVs).

However, this range has been increasing with advancements in battery technology, and many PHEVs can now travel 20-50 miles on electric power alone before the gasoline engine is engaged.

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