How Green are Electric or Hydrogen-Powered Cars?
Assessing GHG Emissions of Traffic in Spain
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Beschreibung
Have you ever wondered by how much CO2 emissions can be reduced by running cars electrically or with hydrogen as fuel? This Brief provides a quantitative answer to this question using the example of the combined road traffic in Spain. The authors calculate the resulting greenhouse gas (GHG) emissions for the production of hydrogen gas or the required electricity and installing and maintaining the necessary infrastructure. In this way, they can compare with the GHG emissions in the present situation of oil fueled cars. Using different scenarios, they obtain an assessment how much ‘greener’ the electric or hydrogen cars can get.The method described in this Brief is scalable and readily adaptable to other countries. It can thus be used for investigating sensible approaches and developing recommendations for a conversion. As expected, the results depend strongly on the production scenarios for hydrogen or electricity production. The wrong choice can even result in increased GHG emissions. A proper choice of the roadmap toward a more sustainable and greener future is of greatest importance – the results described in this Brief can serve as a valuable and useful guide on our way.
Compares the indirect greenhouse gas emissions from electrical or hydrogen powered cars with oil fueled cars Develops different scenarios for the conversion to a greener traffic model Presents an explanation accessible for every reader, even with little technical training, and a model ready to adapt to other countries Provides the answer to a question many people have, correcting a common misconception of GHG emission free electric cars Includes supplementary material: sn.pub/extras
Autor*in
Jesús Montoya Sánchez de Pablo
Themen in »How Green are Electric or Hydrogen-Powered Cars?«
Climate change impact of traffic Reducing CO2 emissions from cars Transportation energy efficiency Hydrogen fuel for car traffic Batteries technology Green traffic Electric car Car traffic greenhouse gas emissions Water electrolysis Climate change management