How Much do Hybrid Cars Pollute?

Emissions from Hybrid and Plug-In Electric Vehicles (Office of Energy Efficiency and Renewable Energy, U.S. Dept. of Energy)

Also discussed here: Well-to-Wheels Energy Use and Greenhouse Gas Emissions Analysis of Plug-in Hybrid Electric Vehicles (70 page pdf, A. Elgowainy, A. Burnham, M. Wang, J. Molburg, and A. Rousseau, Argonne National Laboratory, Feb. 2009)

Today we review a publication from the US Dept of Energy that compares the emissions, both tail pipe and well to wheels, of hybrid vehicles to those running on conventional gasoline. The results indicate not surprisingly that hybrids use 40-60% less gas. One very important point though is the source of the electricity used to power the plug-in hybrids where some regions (such as Ontario) drawing its power from non-pulluting  sources from carbon fuel emissions, such as hydro and nuclear, while others depend almost entirely on coal, natural gas or oil.

To see Key Quotes and Links to key reports about this post, click HERE


One Response

  1. You can combine the two power sources found in a hybrid car in different ways. One way, known as a parallel hybrid, has a fuel tank that supplies gasoline to the engine and a set of batteries that supplies power to the electric motor. Both the engine and the electric motor can turn the transmission at the same time, and the transmission then turns the wheels.

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