Assess changes in electric vehicle usage behaviour: Comparison between 2018 and 2021

With advancements in power battery technology, all-electric driving range (AER) of electric vehicles (EVs) and charging infrastructures have improved significantly in recent years. These improvements may change usage behaviour and reduce range anxiety. Herein, this paper collects nearly 90,000 EV real-world operation data in 2018 and 2021. EV travel and plug-in habits are analysed with descriptive analytical methods and statistical tests. Range anxiety is also assessed using the ordinary least squares algorithm. The results show a 15 % rise in daily distances for electric taxis, alongside a 26.5 % increase in AER and a 29.9 % increase in charging power. In contrast, personal EV travel distance shows little change, despite a 50.8 % increase in AER and a 13.9 % increase in charging power. The results also indicate that as charging power increases, there is a significant decline in range anxiety calculated by the state-of-charge before charging, a trend not observed with increasing AER.