Impact of bus electrification on carbon emissions: The case of Stockholm

Maria Xylia, Sylvain Leduc, Achille-B. Laurent, Piera Patrizio, Yvonne Van Der Meer, Florian Kraxner, Semida Silveira

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

This paper focuses on the potential impact of various options for decarbonization of public bus transport in Stockholm, with particular attention to electrification. An optimization model is used to locate electric bus chargers and to estimate the associated carbon emissions, using a life cycle perspective and various implementation scenarios. Emissions associated with fuels and batteries of electric powertrains are considered to be the two main factors affecting carbon emissions. The results show that, although higher battery capacities could help electrify more routes of the city's bus network, this does not necessarily lead to a reduction of the total emissions. The results show the lowest life cycle emissions occurring when electric buses use batteries with a capacity of 120 kWh. The fuel choices significantly influence the environmental impact of a bus network. For example, the use of electricity is a better choice than first generation biofuels from a carbon emission perspective. However, the use of second-generation biofuels, such as Hydrotreated Vegetable Oil (HVO), can directly compete with the Nordic electricity mix. Among all fuel options, certified renewable electricity has the lowest impact. The analysis also shows that electrification could be beneficial for reduction of local pollutants in the Stockholm inner city; however, the local emissions of public transport are much lower than emissions from private transport.
Original languageEnglish
Pages (from-to)74-87
Number of pages14
JournalJournal of Cleaner Production
Volume209
DOIs
Publication statusPublished - 1 Feb 2019

Keywords

  • CHARGING INFRASTRUCTURE
  • DIOXIDE EMISSIONS
  • ELECTRIC BUSES
  • ENERGY-CONSUMPTION
  • FUEL-CELL HYBRID
  • GREENHOUSE-GAS EMISSIONS
  • LIFE-CYCLE ASSESSMENT
  • LITHIUM-ION
  • PLUG-IN HYBRID
  • PUBLIC TRANSPORT

Cite this

Xylia, Maria ; Leduc, Sylvain ; Laurent, Achille-B. ; Patrizio, Piera ; Van Der Meer, Yvonne ; Kraxner, Florian ; Silveira, Semida. / Impact of bus electrification on carbon emissions: The case of Stockholm. In: Journal of Cleaner Production. 2019 ; Vol. 209. pp. 74-87.
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abstract = "This paper focuses on the potential impact of various options for decarbonization of public bus transport in Stockholm, with particular attention to electrification. An optimization model is used to locate electric bus chargers and to estimate the associated carbon emissions, using a life cycle perspective and various implementation scenarios. Emissions associated with fuels and batteries of electric powertrains are considered to be the two main factors affecting carbon emissions. The results show that, although higher battery capacities could help electrify more routes of the city's bus network, this does not necessarily lead to a reduction of the total emissions. The results show the lowest life cycle emissions occurring when electric buses use batteries with a capacity of 120 kWh. The fuel choices significantly influence the environmental impact of a bus network. For example, the use of electricity is a better choice than first generation biofuels from a carbon emission perspective. However, the use of second-generation biofuels, such as Hydrotreated Vegetable Oil (HVO), can directly compete with the Nordic electricity mix. Among all fuel options, certified renewable electricity has the lowest impact. The analysis also shows that electrification could be beneficial for reduction of local pollutants in the Stockholm inner city; however, the local emissions of public transport are much lower than emissions from private transport.",
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author = "Maria Xylia and Sylvain Leduc and Achille-B. Laurent and Piera Patrizio and {Van Der Meer}, Yvonne and Florian Kraxner and Semida Silveira",
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Impact of bus electrification on carbon emissions: The case of Stockholm. / Xylia, Maria; Leduc, Sylvain; Laurent, Achille-B.; Patrizio, Piera; Van Der Meer, Yvonne; Kraxner, Florian; Silveira, Semida.

In: Journal of Cleaner Production, Vol. 209, 01.02.2019, p. 74-87.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Patrizio, Piera

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AU - Kraxner, Florian

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KW - PLUG-IN HYBRID

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