Comparative analysis of CO2 emissions from diesel and electric buses: A case study of ARUBA AIRPORT AUTHORITY N.V.
11 januari 2024
19:00 uur
- 21:00 uur
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During a well-attended presentation, Mr. Armand Kelly, who graduated from the University of Aruba in 2023 with a Bachelor of Science in Sustainable Engineering and Technology, uncovered the results of his research on a comparative analysis of CO2 emissions from diesel versus electric buses. It was a case study for the Aruba Airport Authority N.V. (AAA) as part of its vision to become the most sustainable airport in the region—the strategy of AAA is to have investments with the lowest environmental impact as reasonable.
The methodology applied was based on a Life Cycle Assessment (LCA) approach but looked only into the climate change aspects, i.e., the CO2 emissions, to compare these between a diesel-driven and an electric-driven bus. This LCA was based on the processes of sourcing, manufacturing, assembling, distribution, use, and finally, the end of life of a bus. This end of life of a bus comprises ways to recycle, reuse, and, in the end, dispose of the bus. Since limited data was available for the CO2 emissions produced by the Aruba power generation plant, an estimate of 0.709 kg CO2 per kWh was made and used for the comparative analysis.
Therefore, Armand Kelly concluded in this thesis that the electric bus, during a lifetime of 15 years, would emit about 20 tons more CO2 than a diesel bus. However, according to Mr. Kelly, from a simplistic point of view, if Aruba could install 5 Wind turbines of 15 Mw each, lowering the power plant's emissions to 0.659 kg CO2 per kWh, this would lead to the electric bus being a less impactful option.
You can find the slides presented during the talk under 'Documenten'.
