| This research set out to explore the key factors influencing the adoption of electric vehicles (EV) in Jakarta, using the Theory of Planned Behaviour as its foundational framework. Building on the work of previous studies, which highlighted urgent global challenges such as climate change and the greenhouse effect, the study emphasises the vital role of the transport sector in reducing CO2 emissions through a shift to environmentally friendly alternatives. The research began with a preliminary phase to uncover the barriers preventing Jakarta residents from adopting EV. A quantitative method was used, collecting data through a Likert-scale-based questionnaire. Out of 406 respondents, 265 provided valid responses for analysis. The findings showed that two hypotheses were not supported — maintenance costs and battery replacement expenses did not significantly impact perceived behavioural control. Moreover, these costs did not indirectly influence the intention to adopt EV via attitude as a mediating variable. This study contributes in several meaningful ways. For science, it enriches the theoretical understanding of EV adoption and provides a basis for future research. For the automotive industry, the findings offer practical insights that can support more informed strategic decision making. For researchers, the project enhances analytical skills, deepens understanding of consumer behaviour, promotes interdisciplinary thinking, and adds valuable experience to both academic and professional development. |