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  4. Global perspective on CO2 emissions of electric vehicles
 
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2021
Journal Article
Title

Global perspective on CO2 emissions of electric vehicles

Abstract
Plug-in electric vehicles (PEVs) are a promising option for greenhouse gas (GHG) mitigation in the transport sector - especially when the fast decrease in carbon emissions from electricity provision is considered. The rapid uptake of renewable electricity generation worldwide implies an unprecedented change that affects the carbon content of electricity for battery production as well as charging and thus the GHG mitigation potential of PEV. However, most studies assume fixed carbon content of the electricity in the environmental assessment of PEV and the fast change of the generation mix has not been studied on a global scale yet. Furthermore, the inclusion of up-stream emissions remains an open policy problem. Here, we apply a reduced Life Cycle Assessment (LCA) approach including the well-to-wheel emissions of PEV and taking into account future changes in the electricity mix. We compare future global energy scenarios and combine them with PEV diffusion scenarios. Our results show that the remaining carbon budget is best used with a very early PEV market diffusion; waiting for cleaner PEV battery production cannot compensate for the lost carbon budget in combustion vehicle usage.
Author(s)
Märtz, Alexandra
KIT Karlsruhe, IIP
Plötz, Patrick  orcid-logo
Fraunhofer-Institut für System- und Innovationsforschung ISI  
Jochem, Patrick
KIT Karlsruhe, IIP; DLR
Journal
Environmental research letters : ERL  
Open Access
DOI
10.24406/publica-r-266915
10.1088/1748-9326/abf8e1
File(s)
N-634239.pdf (500.17 KB)
Rights
CC BY 4.0: Creative Commons Attribution
Language
English
Fraunhofer-Institut für System- und Innovationsforschung ISI  
Keyword(s)
  • electric vehicles

  • transport emissions

  • electricity generation

  • GHG budget

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