Summary of Research and Practice on V2G Technology of Transportation and Energy Fusion

Energy transformation in China is accelerating, with electrified transportation rapidly developing. However, the existing transportation system may struggle to meet the growing demand for renewable energy consumption, and the energy supply from the power grid could face challenges under increased load pressure. As a result, the integrated development of energy and transportation has become a pressing issue, with vehicle-to-grid (V2G) technology emerging as an area of research. This paper first examines the current status of V2G application both domestically and internationally. Then, it focuses on important V2G applications, reviewing the research and practical implementations of V2G in rail transit and new energy electric vehicles. It also introduces a novel V2G mode based on the personal rapid transit (PRT) system and compares the three V2G modes. Finally, it explores the potential of building an energy internet around V2G within the framework of “fusion of transportation and energy” and identifies future research directions.