Greenhouse gas emissions reduction potential of CO2-based mobile air conditioning systems in China’s electric bus fleets

Mobile air conditioning (MAC) systems in vehicles are a major source of greenhouse gas emissions. This paper highlights the environmental significance of MAC systems in electric buses in China and underscores the potential of CO2-based MAC technologies to reduce GHG emissions. The analysis presented in this paper demonstrates that CO2-based MAC technologies have the potential to decrease the total energy consumption of electric buses, with an Amesim simulation model estimating a GHG emissions reduction potential of up to about 5.5% of China’s electric bus fleet emissions annually, contingent on geographic coverage. The paper offers practical recommendations for government authorities, manufacturers, and fleet operators to promote the adoption of high-efficiency MAC systems and mitigate the environmental impact of these essential components in modern vehicles. 

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