Mapping renewable energy publications: A bibliometric analysis using RSTUDIO bibliometrix

Abstract

The rapid expansion of renewable energy research has generated a vast body of scientific literature, yet comprehensive analyses of publication trends and thematic emphases remain limited. This study addresses this gap by conducting a bibliometric analysis of renewable energy and related subfields, using publications retrieved from a major scientific database. A total of 2237 publications authored by 2787 researchers were examined using advanced bibliometric tools to identify influential journals, organizations, research themes, and collaborative networks. Publications were classified according to primary focus areas, revealing that studies on potential assessment and policy development dominate the field, followed by mathematical modeling and theoretical approaches, with experimental research and new material and design development being less represented. The findings highlight both the strengths and underexplored areas within renewable energy research, providing a detailed overview of thematic trends and knowledge gaps. This analysis offers valuable insights for researchers and policymakers by revealing areas requiring further investigation and collaboration. Overall, the study demonstrates the growing scholarly interest in renewable energy and underscores the need for multifaceted, interdisciplinary approaches to advance the field effectively.

Keywords: Bibliometric analysis; renewable energy; research trends; scientific publications; thematic mapping