Abstract
Many researchers have investigated the energy consumption and CO2 emission of battery electric vehicles (BEVs) in China. Their studies show that BEVs will not be able to deliver a meaningful decrease in CO2 emissions because coal is the overwhelming power source. This study take the Tsinghua-LCAM module, which is a life-cycle analysis tool based on the GREET plat form, to exam the energy consumption and CO2 emission at Well-to-Tank (WTT) stage, and adopt different type of drivetrain technologies of BEVs to analyze the fuel economy at Tank-to-Wheels (TTW) stage. Amongst the results, the life cycle fossil consumption and CO2 emission of BEVs are lower than that of internal combustion engine vehicles (ICEVs) with fuel consumption of 5 L/100km in China. With the improvement of upstream coal power generation efficiency and the rise of the contribution of cleaner electricity, BEVs show more rapid decreases in life cycle fossil consumption and CO2 emissions over time than that of ICEVs.
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