Solar energy is one of the sustainable sources of renewable energy. Solar energy plays a vital role in coping with the surging global energy demands and environmental issues arising due to conventional energy sources. In the present work, data collected from meteorological stations measuring air temperature and global solar radiation in the provinces of Amasya, Çorum, Samsun and Tokat in the Central Black Sea Region of Turkey. The exergy values of solar radiation were calculated from the data collected. Jeter's, Spanner's and Petela's exergy models available in literature were employed in this study to obtain four-year data analysis. The exergy-energy ratio values obtained from Petela and Spanner methods are highly similar. The highest exergy-energy ratio values for all provinces were obtained with the Jeter method. While the highest annual solar radiation exergy value was obtained in Çorum and Samsun provinces in 2022, it was obtained in Amasya and Tokat provinces in 2020. The research results are expected to provide information to researchers on optimizing solar energy systems, structuring regional energy systems and contributing to the transition to global sustainable energy solutions.
Sertaç Samed Seyitoğlu (Mon,) studied this question.