Electric Vehicles (EVs)

Electric vehicles (EVs) are propelled by an electric motor (or motors) powered by rechargeable battery packs. Electric motors have several advantages over internal combustion engines (ICEs):
  • Energy efficient. Electric motors convert 75% of the chemical energy from the batteries to power the wheels-internal combustion engines (ICEs) only convert 20% of the energy stored in gasoline.
  • Environmentally friendly. EVs emit no tailpipe pollutants, although the power plant producing the electricity may emit them. Electricity from nuclear-, hydro-, solar-, or wind-powered plants causes no air pollutants.
  • Reduce energy dependence. Electricity is a domestic energy source.
  • Performance benefits. Electric motors provide quiet, smooth operation and stronger acceleration and require less maintenance than ICEs.
The Down Side: Batteries
EVs face significant battery-related challenges:
  • Driving range. Most EVs can only go 150 miles (or less) before recharging-gasoline vehicles can go over 300 miles before refueling.
  • Recharge time. Fully recharging the battery pack can take 4 to 8 hours.
  • Battery cost: The large battery packs are expensive and usually must be replaced one or more times.
  • Bulk & weight: Battery packs are heavy and take up considerable vehicle space.
Researchers are working on improved battery technologies to increase driving range and decrease recharging time, replacement frequency, weight, and cost. These factors will ultimately determine the future of EVs.

Information Articles News Links
other news:
11/20/2014 05:20 PM
Market for Electric Two-wheelers, Hybrid and Micro Electric Vehicles Analyzed with 2014 - 2018 Forecasts in New ...
DALLAS, November 20, 2014 /PRNewswire/ -- ReportsnReports.com adds Global Electric Two-wheelers Market 2014-2018, Global Hybrid Electric Vehicle Market 2014-2018 and Global Micro Electric Vehicles Market ...
11/17/2014 09:13 PM
Electric vehicles move closer to widespread use, experts say
"What infrastructure do we need for people who own electric vehicles where they know it's easy to charge them, it's quick to charge them, there are lots of spots to charge them, not only within the city, but perhaps along the highway?" she asks. Enter PowerStream, a community-owned energy company that provides power and services to more than 370,000 customers in communities north of Toronto ...
11/20/2014 03:00 PM
Multi-Billion Dollar Investment Firm’s Investment in The Hybrid Shop (THS), Affirms Brand’s Potential for Market ...
The Hybrid Shop , a growing international network of dealers committed to providing expert care for hybrid and electric vehicles , announced today that it has successfully closed on a growth investment by a Northern Virginia investment firm that manages approximately $4 billion in assets.
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EVs ON WIKIPEDIA  ·  EVs HISTORY ·  U.S. Patent 1,017,198 , E. W. Bender, Electric Motor vehicle

source: www.fueleconomy.gov

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