Hybrid Cars Now, Fuel Cell Cars Later

Author:

Demirdöven Nurettin12,Deutch John12

Affiliation:

1. Technology and Policy Program, Engineering Systems Division, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

2. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. J.D. is a director of Cummins (a manufacturer of diesel engines) and an advisor to United Technologies Corporation, UTC Power, a fuel cell manufacturer.

Abstract

We compare the energy efficiency of hybrid and fuel cell vehicles as well as conventional internal combustion engines. Our analysis indicates that fuel cell vehicles using hydrogen from fossil fuels offer no significant energy efficiency advantage over hybrid vehicles operating in an urban drive cycle. We conclude that priority should be placed on hybrid vehicles by industry and government.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference21 articles.

1. Calculated from weekly data of supplied gasoline products published by DOE Energy Information Agency; see www.eia.doe.gov/oil_gas/petroleum/info_glance/gasoline.html.

2. National transportation statistics 2002 2002

3. Inventory of U.S. greenhouse gas emissions and sinks: 1990-2001 2003

4. Only gasoline and natural gas are widely available as a transportation fuel today; a hydrogen or methanol fueled transportation system would take decades to deploy at significant cost.

5. In 2001 General Motors (GM) collaborated with Argonne National Laboratories (ANL) to use ANL's Greenhouse Gases Regulated Emissions and Energy Use in Transportation (GREET) model. The report “GM study: Well-to-wheel energy use and green-house gas emissions of advanced fuel/vehicle system North American analysis ” is referred to as the ANL/GM study and is available online at http://greet.anl.gov/publications.html.

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