Bibliometric Analysis of Renewable Energy Technologies Using VOSviewer: Mapping Innovations and Applications

Abstract

This study analyzes the interrelationships between critical topics in technology development using VOSviewer bibliometric visualization. Three main clusters were found: battery and energy storage technologies, catalysis and chemical reactions, and information and communication technologies. The first cluster highlights battery, energy density, and high energy density, indicating a strong focus on energy storage innovation. The second cluster includes catalyst and oxygen evolution reactions, emphasizing the importance of catalysis in hydrogen-based energy conversion. The third cluster is related to IoT, networks, and data, highlighting the role of innovative grid technologies and data management in digital transformation. These results demonstrate the synergy between renewable energy development, technological efficiency, and digital integration, key directions of modern technology research. This study provides important insights to support sustainable innovation in energy and information technologies.