The recent developments in the field of sustainable energy generation for electric vehicles and urban energy systems are notably advancing towards more efficient and innovative solutions. Researchers are increasingly focusing on integrating multiple energy generation methods to enhance the performance and sustainability of electric vehicles. This includes the use of photovoltaic cells, regenerative braking, fuel cells, thermoelectric generators, and micro wind-turbines, often combined with phase change materials to optimize energy storage and utilization. Notably, there is a significant push towards developing more efficient and compact renewable energy devices, such as bladeless wind turbines, tailored for urban environments where space is limited. These innovations aim to provide sustainable energy solutions that are not only efficient but also adaptable to the unique constraints of urban landscapes. The modeling and optimization of these systems are also receiving attention, with advancements in understanding the governing laws of matter transport and voltage polarization in fuel cells, which is crucial for future energy system designs. Overall, the field is moving towards more integrated, efficient, and urban-friendly renewable energy solutions.