The article discusses the global rise in electric vehicle (EV) sales as a key solution to reducing emissions, emphasizing the need for increased investment in sustainable transportation. While regions like China lead in EV adoption, challenges in EV charging infrastructure exist worldwide. These challenges range from power system instability in highly adopted areas to access and economic feasibility issues in less developed regions. Research is focusing on optimizing renewable energy usage in EV charging stations to address these challenges. Studies have shown the economic benefits of high renewable energy contributions and the importance of considering load profile behavior. Furthermore, managing excess power in solar-based EV charging stations is explored, with different charging strategies impacting hydrogen production costs. Solutions include utilizing renewable energy sources effectively and considering different load profiles to improve the economic performance of EV charging infrastructure.