The 1st International Workshop on Renewable Energies: Advances, Challenges, andGlobal Perspectives, organized by the RIBIERSE-CYTED network, provided anacademic forum for discussion and exchange focused on analyzing the main scientific,technological, and social advances related to the transition to sustainable energysystems. The RIBIERSE-CYTED network held this workshop virtually on July 1 and2, 2026, bringing together researchers, energy sector professionals, institutionalrepresentatives, and stakeholders interested in the development, integration, andconsolidation of renewable energies in local, regional, and global contexts. The contributions presented in the proceedings book highlight the diverse approachesin the field of renewable energy. The included papers cover a range of topics, includingthe operation and maintenance of renewable energy plants, the application of artificialintelligence and computational tools for energy optimization, the design of microgrids,and energy communities supported by renewable technologies and storage.Additionally, they address the social, regulatory, and legislative factors that haveinfluenced the implementation of cleaner, more resilient, and equitable energy models.This volume brings together contributions that emphasize the necessity of integratingscientific knowledge, technological innovation, industrial experience, and socialperspectives to address the contemporary challenges of decarbonization, energyefficiency, and supply security. Moreover, the compiled research identifies emergingtrends, explores opportunities for international collaboration, and outlines work tostrengthen renewable energy in the context of sustainable development. The editors express their gratitude to the authors, speakers, participants, andcollaborating entities that made this first international workshop possible. It is hopedthat these proceedings will help disseminate knowledge, strengthen academic andprofessional networks, and promote innovative solutions for a just, efficient, andglobally relevant energy transition.