# Global perspective on CO$_{2}$ emissions of electric vehicles

Märtz, Alexandra 1; Plötz, Patrick; Jochem, Patrick 1
1 Institut für Industriebetriebslehre und Industrielle Produktion (IIP), Karlsruher Institut für Technologie (KIT)

##### 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 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.

 Zugehörige Institution(en) am KIT Institut für Industriebetriebslehre und Industrielle Produktion (IIP) Publikationstyp Zeitschriftenaufsatz Publikationsdatum 01.06.2021 Sprache Englisch Identifikator ISSN: 1748-9326 KITopen-ID: 1000135088 Erschienen in Environmental research letters Verlag Institute of Physics Publishing Ltd (IOP Publishing Ltd) Band 16 Heft 5 Seiten Art.Nr.: 054043 Nachgewiesen in DimensionsWeb of ScienceScopus
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