Cited by 1,670Electric Vehicles and InfrastructureEnvironmental Impact and SustainabilityVehicle emissions and performance

Comparative Environmental Life Cycle Assessment of Conventional and Electric Vehicles

Hawkins, Troy R., Singh, Bhawna, Majeau‐Bettez, Guillaume, Strømman, Anders Hammer·2013·Journal of Industrial Ecology

Abstract

Summary: Electric vehicles (EVs) coupled with low‐carbon electricity sources offer the potential for reducing greenhouse gas emissions and exposure to tailpipe emissions from personal transportation. In considering these benefits, it is important to address concerns of problem‐shifting. In addition, while many studies have focused on the use phase in comparing transportation options, vehicle production is also significant when comparing conventional and EVs. We develop and provide a transparent life cycle inventory of conventional and electric vehicles and apply our inventory to assess conventional and EVs over a range of impact categories. We find that EVs powered by the present European electricity mix offer a 10% to 24% decrease in global warming potential (GWP) relative to conventional diesel or gasoline vehicles assuming lifetimes of 150,000 km. However, EVs exhibit the potential for significant increases in human toxicity, freshwater eco‐toxicity, freshwater eutrophication, and metal depletion impacts, largely emanating from the vehicle supply chain. Results are sensitive to assumptions regarding electricity source, use phase energy consumption, vehicle lifetime, and battery replacement schedules. Because production impacts are more significant for EVs than conventional vehicles, assuming a vehicle lifetime of 200,000 km exaggerates the GWP benefits of EVs to 27% to 29% relative to gasoline vehicles or 17% to 20% relative to diesel. An assumption of 100,000 km decreases the benefit of EVs to 9% to 14% with respect to gasoline vehicles and results in impacts indistinguishable from those of a diesel vehicle. Improving the environmental profile of EVs requires engagement around reducing vehicle production supply chain impacts and promoting clean electricity sources in decision making regarding electricity infrastructure.

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Crossref · 10.1111/j.1530-9290.2012.00532.x

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Authors
Hawkins, T. R., Singh, B., Majeau‐Bettez, G., & Strømman, A. H.
Affiliations
  • Environmental Protection Agency (US)
  • Norwegian University of Science and Technology (NO)
Corresponding author
Strømman, Anders Hammer
Venue
Journal of Industrial Ecology
Published
2012-10-04
Volume
17
Issue
1
Pages
53-64
ISSN
  • 1088-1980 (ISSN-L)
  • 1530-9290
OpenAlex
W2167885723
Cited by
1,670
References
47
Citations by year
2026: 147 · 2025: 178 · 2024: 143 · 2023: 128 · 2022: 136 · 2021: 147 · 2020: 132 · 2019: 151 · 2018: 124 · 2017: 96 · 2016: 85 · 2015: 86 · 2014: 73 · 2013: 42 · 2012: 2
FWCI
41.51
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Industrial Ecology (publishedVersion)
  • PolyPublie (École Polytechnique de Montréal) (submittedVersion)
Funders
Norwegian Research Council (190940)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electric Vehicles and Infrastructure
  • Physical Sciences › Environmental Science › Environmental Engineering › Environmental Impact and Sustainability
  • Physical Sciences › Engineering › Automotive Engineering › Vehicle emissions and performance
Keywords
electric vehicles, internal combustion engine vehicles, life cycle assessment, global warming potential, electricity mix, battery replacement, vehicle lifetime, human toxicity, freshwater eutrophication, metal depletion, supply chain impacts, problem shifting, greenhouse gas emissions

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