Electric vehicles emit less greenhouse gases (GHG)

Electric vehicles have proven their ability to reduce greenhouse gas emissions, reduce our dependence on foreign oil, and are uniquely able to participate in an interactive energy grid of the future.

Compared to an average car:

  • Every 1,000 miles driven in an electric car saves 39.5 gallons of gasoline, or 2 barrels of oil
  • Every 1,000 miles in an electric truck can save more than 60 gallons of gasoline, or 3 barrels of oil
  • An average car emits 280 percent more carbon per mile* than an electric vehicle – even if the electric vehicle is charged with electricity generated mostly using coal.
  • An electric car charged with renewable energy emits zero carbon per mile

*This data assumes today's electricity grid, which is getting cleaner every year. In 2008, renewable sources grew faster than any other energy source on the U.S. electricity grid.

Petroleum and hybrid vehicles miles per gallon Lbs carbon per gallon Lbs carbon per mile Reduction in carbon
emission *
Average U.S. car 27.5 19.4 0.71  
2008 Toyota Prius hybris 46 19.4 0.42 41%
2009 VW Jetta diesel 34 22.2 0.65 8%
U.S. Gov't 2020 MPG law 35 19.4 0.55 23%
Electric vehicles miles per kWh Lbs carbon per kWh Lbs carbon per mile Reduction in carbon emission *
Electric vehicle, average U.S. electric grid 4.5 1.34 0.30 58%
Electric vehicle, California electric grid 4.5 0.61 0.14 80%
Electric vehicle, 100% renewable 4.5 0 0 100%

In this section

How electric vehicles work

Electric vehicles are more efficient

Electric vehicles emit less greenhouse gases (GHG)

Practical approaches to recharging electric vehicles

Government policies to encourage electric vehicle recharging infrastructure

Electric vehicles on the market and in the future


Electric vehicle definitions

EV = Electric Vehicle: a vehicle powered only by electricity

BEV = Battery Electric Vehicle: another term sometimes used for an EV

HEV = Hybrid Electric Vehicle: powered by gasoline plus electricity, no plug (example: Toyota Prius, Honda Insight, Honda Civic, Ford Escape)

NEV = Neighborhood Electric Vehicle: a 25 mph EV, meant for in-town use

PHEV = Plug-In Hybrid Vehicle: an HEV with an electric plug for recharging that reduces gasoline use

EREV = Extended Range Electric Vehicle: A PHEV with an on-board generator for longer trips