The electric vehicle market is evolving rapidly with models available in
a range of vehicle types, from compact cars and sedans to sport utility
vehicles (SUVs) and pickup trucks. Some EVs operate solely on batteries, while
others are hybrid models with both an electric motor and an internal combustion
engine. This section provides an overview of the types of EVs as well as types
of charging infrastructure. It also discusses steps that States and localities
have taken to prepare for increasing numbers of EVs by providing public
charging stations.
There
are four types of electric vehicles available on the market:
Battery Electric Vehicles (BEVs)
Battery
electric vehicles (BEVs) also referred to as “all-electric vehicles”—run on
electricity only and are recharged from an external power source. They are
propelled by one or more electric motors powered by rechargeable battery
packs.
Almost all BEVs can travel at least 100 miles on a charge, and many new vehicles coming on the market offer an all-electric range of 200-300 miles or more.
Plug-In Hybrid Electric Vehicles (PHEVs)
Plug-in
hybrid electric vehicles (PHEVs) also use batteries to power an electric motor
and can be recharged from an external power source, but they incorporate a
smaller internal combustion engine that can recharge the battery (or in some
models, directly power the wheels) to allow for longer driving ranges.
PHEVs
can usually drive moderate distances in “EV mode” using only the battery,
typically from 20 to 50 miles in current models. This
significantly reduces their gasoline use and emissions under typical driving
conditions, since most trips are short.
PHEVs
use 14 to 47 percent less fuel than conventional vehicles if their
batteries are fully charged. When electricity is unavailable, PHEVs can run on
gasoline alone.
Hybrid Electric Vehicles (HEVs)
Hybrid
electric vehicles (HEVs) are powered by a combination of an internal combustion
engine with electric motors running off a battery pack for greater efficiency.
The batteries of an HEV cannot be recharged from an external source.
Fuel Cell Electric Vehicles (FCEVs)
Fuel
cell electric vehicles (FCEVs) use a highly efficient electrochemical process
to convert hydrogen into electricity, which powers an electric motor. FCEVs on
the market today are not designed for recharging their battery from an external
source. Rather, they are fueled with compressed hydrogen gas that is stored in
a tank on the vehicle.
This toolkits uses the
term “EV” to refer to both BEVs and PHEVs, since these vehicles can be
recharged from external sources and are capable of operating with zero tailpipe
emissions. This toolkit focuses primarily on EVs and does not address HEVs and
FCEVs unless otherwise noted.
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