Public spaces play a vital role in shaping our cities, fostering social interactions, and enhancing the livability of urban environments. However, they also hold untapped potential for renewable energy generation, which can contribute to addressing the growing global energy demand forecasted until 2050. The concept of micro-generation is gaining traction as a strategy to increase the energy autonomy of communities and reduce reliance on heavy, inefficient centralized infrastructure. While this concept is actively promoted within the “buildings” sector, the implementation of micro-generation in urban public spaces, in the form of larger-scale interventions, has remained largely unexplored. Therefore, this study provides a brief overview of the power of public spaces for energy generation by exploring its current and promising technologies, scope of application, and showcasing some experimental case studies. Furthermore, the study discusses the most prominent challenges and opportunities behind the widespread adoption of renewable micro-generation in public spaces, emphasizing the importance of financial and technological constraints, policy support, and community engagement. Lastly, it aims to offer guidance for the current architectural approach toward urban public spaces, bridging the gap between theoretical concepts and their practical application, while paving the way for broader and more innovative interventions in the future.