The consumption of electric energy in public buildings, such as universities, tends to be significant due to the combination of daily activities, leisure, and research tasks conducted within these facilities. To address this demand, many institutions aim to partially meet their energy needs through renewable energy sources, contributing to sustainability goals and reducing operational costs. This work focuses on the analysis of the solar photovoltaic system installed at the University of Castilla-La Mancha's Toledo Campus in Spain. The results reveal that the photovoltaic system achieves a demand coverage of 15.39%, indicating a measurable contribution to the total energy requirements. Additionally, there are specific periods during which the photovoltaic generation surpasses the energy supplied from the external grid, showcasing its potential to alleviate reliance on non-renewable sources. These shortcomings highlight areas for optimization, emphasizing the need for strategic improvements to enhance energy coverage and accelerate the return on investment. By addressing these challenges, the findings offer valuable insights for improving the integration and effectiveness of renewable energy systems in similar public and academic buildings.