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What Future for Electrofuels in Transport? Analysis of Cost Competitiveness in Global Climate Mitigation
Linköping University, Department of Thematic Studies, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences. Linköping University, Centre for Climate Science and Policy Research, CSPR. Chalmers Univ Technol, Sweden.
Chalmers Univ Technol, Sweden.
Chalmers Univ Technol, Sweden.
2019 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 53, no 3, p. 1690-1697Article in journal (Refereed) Published
Abstract [en]

The transport sector is often seen as the most difficult sector to decarbonize. In recent years, so-called electrofuels have been proposed as one option for reducing emissions. Electrofuels-here defined as fuels made from electricity, water, and carbon dioxide-can potentially help manage variations in electricity production, reduce the need for biofuels in the transportation sector while utilizing current infrastructure, and be of use in sectors where fuel switching is difficult, such as shipping. We investigate the cost-effectiveness of electrofuels from an energy system perspective under a climate mitigation constraint (either 450 or 550 ppm of CO2 in 2100), and we find the following: (i) Electrofuels are unlikely to become cost-effective unless options for storing carbon are very limited; in the most favorable case modeled-an energy system without carbon storage and with the more stringent constraint on carbon dioxide emissions-they provide approximately 30 EJ globally in 2070 or approximately 15% of the energy demand from transport. (ii) The cost of the electrolyzer and increased availability of variable renewables appear not to be key factors in whether electrofuels enter the transport system, in contrast to findings in previous studies.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2019. Vol. 53, no 3, p. 1690-1697
National Category
Other Environmental Engineering
Identifiers
URN: urn:nbn:se:liu:diva-154664DOI: 10.1021/acs.est.8b05243ISI: 000458220600067PubMedID: 30633863OAI: oai:DiVA.org:liu-154664DiVA, id: diva2:1293216
Available from: 2019-03-04 Created: 2019-03-04 Last updated: 2019-03-04

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CiteExportLink to record
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