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Prospective cost and environmental impact assessment of battery and fuel cell electric vehicles in Germany

  • MODERN INDIVIDUAL MOBILITY
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A Correction to this article was published on 14 February 2020

This article has been updated

Abstract

Purpose

The goal of this study was to provide a holistic, reliable, and transparent comparison of battery electric vehicles (BEVs) and fuel cell electric vehicles (FCVs) regarding their environmental impacts (EI) and costs over their whole life cycle. The comprehensive knowledge about EI and costs forms the basis on which to decide which technology should be favored for the future of mobility.

Methods

Therefore, a holistic and transparent comparative life cycle assessment (LCA), using the ReCiPe 2016 method, and a life cycle costing were conducted. Special attention was paid to the fuel supply infrastructure for BEV and FCV as these have not been sufficiently considered in previous research. The required infrastructure was calculated for six million electric vehicles (EVs) and the EI and costs were allocated proportional on the functional unit of 1 km driven with an EV. Different scenarios regarding electricity mix, range of the BEV, and vehicle lifetime were calculated. In order to ensure transparency, all inventories and calculations were published in the attached Electronic supplementary material (ESM).

Results and discussion

Detailed results were presented for the impact categories global warming potential (GWP), human toxicity potential non-carcinogenic (HTPnc), surplus ore potential (SOP), and particulate matter formation potential (PMFP). Aggregated results for all midpoint impact categories of the ReCiPe method can be found in the ESM. It was shown that BEVs achieve lower EI than FCVs in most impact categories (e.g., GWP: BEV: 1.40E-01, FCV: 1.68E-01 kg CO2-eq./km) and that the total costs of ownership are as well lower for BEVs (68,900 € vs. 130,100 €). Further, it was found that the fuel supply infrastructure—without electricity supply—contributes a considerable amount to the overall impact per kilometer driven (e.g., 3.7% and 3.3% of the GWP for BEV and FCV, respectively).

Conclusions

Considering mid-size vehicles like the VW e-Golf, it was concluded that BEVs have today a better environmental and financial performance than FCVs. However, the range of the BEV is lower than the range of the FCV (200 vs. 530 km) and both technologies have different stages of maturity. Moreover, the study showed that the fuel supply infrastructure is an important contributor to the overall life cycle impacts and that it is therefore indispensable to include the infrastructure in LCA of electric vehicles. Based on the results, recommendations to utilize the advantage of both BEV (high energy efficiency, lower costs) and FCV (long-distance capability) were made.

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Change history

  • 14 February 2020

    The original version of this article unfortunately contained a mistake. Electronic Supplementary Material 1 was incorrect. The correct version is linked in the online version of this correction.

Abbreviations

BEV:

Battery electric vehicle

BOP:

Balance of plant (control unit for the fuel cell)

CAPEX:

Capital expenditures (investment costs)

EI:

Environmental impacts

EoL:

End of life

EVs:

Electric vehicles

FCVs:

Fuel cell vehicles

FLH:

Full-load hours

FSI:

Fuel supply infrastructure (chargers for BEVs and the hydrogen production and distribution in case of FCVs)

GHG:

Greenhouse gases

GWP:

Global warming potential

HTPnc:

Human toxicity potential

IC:

Impact categories

ICEV:

Internal combustion engine vehicles

LCA:

Life cycle assessment

LCC:

Life cycle costing

LCIA:

Life cycle impact assessment

SOP:

Surplus ore potential

PMFP:

Particulate matter formation potential

SFT:

Surcharges, fees, and taxes, which has to be paid for electricity

TCO:

Total cost of ownership

WaM:

Wearing and maintenance

References

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Acknowledgments

We thank T. Smolinka (Fraunhofer ISE) and N. Rice (ITM Power) for their help in preparing the inventories for the PEM electrolyzer.

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Correspondence to Kai Bekel.

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The authors declare that they have no conflict of interest.

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Responsible editor: Wulf-Peter Schmidt

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Electronic supplementary material

ESM 1

(XLSX 427 kb)

ESM 2

(XLSX 120 kb)

ESM 3

(XLSX 5431 kb)

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Bekel, K., Pauliuk, S. Prospective cost and environmental impact assessment of battery and fuel cell electric vehicles in Germany. Int J Life Cycle Assess 24, 2220–2237 (2019). https://doi.org/10.1007/s11367-019-01640-8

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  • DOI: https://doi.org/10.1007/s11367-019-01640-8

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