Smart consumers and business leaders know electric vehicles (EV) play an important role in our clean-energy future. We encourage and teach the use of EVs to drastically reduce fuel costs for our customers. We are researching the impact of EVs on grid reliability, including vehicle-to-home and vehicle-to-grid technologies; and with our automotive partners, we are also helping to develop industry standards for future plug-in EVs.
Most of today's vehicles are powered by lithium ion batteries that hold charges efficiently and have no memory effect, which means you don't have to run down the battery completely before recharging. There are three types of Plug-in EV:
BEVs include the Nissan Leaf, Wheego LiFe, Ford Focus Electric and Tesla Roadster. BEVs have no gasoline engine and run exclusively on the energy stored in on-board batteries. These vehicles are advertised to travel 100 or more miles before recharging.
PHEVs are similar to hybrid vehicles with the addition of larger batteries that plug into the grid. This enables you to drive further on electricity while adding the convenience of continued driving on gasoline.
HEVs have larger battery packs and are advertised to allow for all electric driving up to 40 miles. After battery depletion, the car uses a gasoline-powered generator that allows extended range driving, up to 300-plus miles.