Global energy consumption is exceeding available generation capacity at an alarming rate. Energy security and reliability must be increased and vigorous research into alternative energy sources is required to efficiently fulfill future energy demands. The second most energy-intensive building type in the commercial sector is healthcare facilities, which use a lot of energy. This review provides a comprehensive overview of the current advancements and applications of renewable energy sources in healthcare systems. The study explores various innovative devices powered by renewable energy, including triboelectric nanogenerators, biofuel cells, solar-powered medical equipment, and wearable technologies. Key applications such as drug delivery systems, implantable medical devices, solar autoclaves, heart and respiratory monitoring systems, glucometers, and solar microscopes are discussed in detail. The review highlights the advantages of these innovations in reducing carbon footprint and improving medical efficiency.