Document Type
Article
Publication Date
1-29-2025
Abstract
Electric vehicle (EV) adoptions are promoted with subsidies to reduce greenhouse gas emissions from ground transportation. In this paper, a hierarchical analysis is presented on the potential of greenhouse gas emission mitigation via the electric vehicle subsidy policy at state level in the US, through research of environmental and economic fundamentals of electric vehicle operations, energy consumptions, battery degradation and service life. It has been found that restructuring the federal subsidies to promote EV adoption can significantly reduce greenhouse gas emissions across the US. The reduction costs of greenhouse gas emissions vary between $1167.44/ton in Vermont to $6880.13/ton in Wyoming. A case study reveals that 15.24 % more greenhouse gas emissions can be reduced with a tiered federal subsidy structure. The restructuring of subsidies will also encourage the adoption of clean energies in the grid fuel mix and drive technological advancements to extend the battery lifetime in the future.
Keywords
electric vehicles, electric vehicles subsidies, greenhouse gas mitigation, lithium-ion batteries, policy recommendations
Language
English
Publication Title
Transportation Research Part D Transport and Environment
Grant
DE-EE0008795
Rights
© 2025 The Author(s). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/), which permits non-commercial copying and redistribution of the material in any medium or format, provided the original work is not changed in any way and is properly cited.
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Recommended Citation
Su, B., Shen, K., & Yuan, C. (2025). Hierarchical analysis of US electric vehicle subsidies for carbon emission mitigation. Transportation Research Part D: Transport and Environment, 140, 104598.
Manuscript Version
Final Publisher Version