关键词: 生命周期评估；温室气体；电动汽车；陕西省；动力总成

Abstract: To achieve the goals of carbon peaking by 2030 and carbon neutrality by 2060, the transportation department is actively promoting vehicle electrification. This paper analyzes the greenhouse gas emissions and energy consumption of five types of vehicles: battery electric vehicles (BEV), plug-in hybrid electric vehicles (PHEV), extended range electric vehicles (EREV), hybrid electric vehicles (HEV), and internal combustion engine vehicles (ICEV) in the context of the power structure in Shaanxi province in 2020. The research results indicate that compared to ICEV, BEV,PHEV, EREV, and HEV achieve reductions in emissions by 34.7%, 27.3%, 10.8%, and 27.6%, respectively, over the life cycle of the vehicles. Additionally, their energy consumption is reduced by 33.8%, 17.1%, 7.45%, and 29.7%, respectively. As the degree of vehicle electrification increases, the primary emissions shift to the electricity generation stage. Further analysis of future scenarios reveals that increasing the penetration rate of BEV and improving the proportion of renewable energy in the grid will contribute to achieving Shaanxi province's carbon peaking target by 2030 and carbon neutrality target by 2060. These research findings demonstrate that promoting vehicle electrification in Shaanxi province is an effective pathway to achieving carbon reduction goals. By reducing greenhouse gas emissions and energy consumption, Shaanxi province can make positive contributions to addressing climate change and achieving sustainable development.

Key words: Life cycle assessment; Greenhouse gas; Electric vehicles; Shaanxi province; Powertrain