Mapping renewable energy research in healthcare facilities: Publication trends, thematic evolution, and future research directions

Healthcare facilities are very energy‑intensive public buildings that need strong, sustainable, and resilient power solutions to keep critical operations running. This research project provides a full bibliometric and thematic review of the global scientific work on integrating renewable energy into healthcare settings. It uses data from 139 publications indexed in the Web of Science database covering the period from 2011 to 2026. The study follows the PRISMA framework and employs the R‑based Bibliometrix software to map publication trends, intellectual foundations, and conceptual structures. The methodology includes performance analysis, reference co‑citation mapping, keyword co‑occurrence evaluation, and tracking of thematic evolution. The analysis shows a clear increase in scientific output and identifies

key research clusters focused on hybrid renewable energy systems, hospital energy optimization, and operational resilience. By organizing these thematic developments, the project creates a systematic framework to guide future research and offers valuable insights for designing low‑carbon hybrid microgrids specifically for critical healthcare infrastructures. This systematic review serves as a foundational guide for modeling and simulating hybrid renewable energy systems in hospital environments.

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