Abstract: Integrating renewable energy into green transportation is critical for achieving sustainable development goals. This study investigates the key factors driving the integration of renewable energy into green transportation systems. Through a comprehensive literature review and expert consultation, 11 drivers were identified and ranked using the Dynamic Grey Relational Analysis (DGRA) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). Government Subsidies and Incentives, Electric Vehicles and Charging Infrastructure, and Energy Security and Reduced Fuel Dependency were the most important drivers. In addition, Kruskal-Wallis test was used to assess the consistency of rankings between different stakeholder groups. Although there were slight differences between the rankings produced by the DGRA and TOPSIS methods, the top five drivers for both methods remained consistent, underscoring their critical importance. The findings highlight that government interventions, such as subsidies and incentives, play a key role in promoting renewable energy adoption. The development of electric vehicles and charging infrastructure, as well as the need to enhance energy security and reduce dependence on fossil fuels, further highlights the systemic nature of these factors. This study provides a robust framework for policymakers and industry stakeholders to prioritize initiatives and efficiently allocate resources to facilitate the integration of renewable energy sources.

Key words: Renewable Energy Integration, Green Transportation, Multiple Criteria Decision-Making, Dynamic Grey Relational Analysis, Technique for Order Preference by Similarity to Ideal Solution