Photovoltaic Solar Power Plant of Soguksu: A Case Study

Year 2025, Volume: 14 Issue: 3, 1625 - 1635, 30.09.2025

Kenan Saka , Abdülkadir Ayanoğlu

https://doi.org/10.17798/bitlisfen.1687356

Abstract

Investments in photovoltaic solar power plants continue to increase across all provinces of Türkiye. However, Bursa is not among the regions that receive the highest levels of solar radiation compared to the eastern parts of the country. The Soğuksu power plant, located in the village of the same name in Bursa, was commissioned in March 2017 with an installed capacity of 7 MW. In this study, the actual generation data of the power plant for 2022 were analyzed, and the performance ratio (PR) and capacity factor (CF) were calculated. The results show that the minimum electricity generation occurred in December 2021 with 401.21 MWh, while the total electricity production in 2022 reached 10.64 GWh. During the summer season, the plant generated 7,262.8 MWh, corresponding to 68% of its annual production. The lowest performance ratio was observed in June at 75.1%, while the highest capacity factor was recorded in July at 28%. Furthermore, the performance ratios for November, December, and January exceeded 100%. Since the PR is calculated based on the solar energy values reported in the regional solar atlas, such results indicate a notable discrepancy between the published data and the actual site conditions. The exceptionally high PR values during the winter months may suggest that the region experiences milder winters and receives higher solar radiation than the atlas values imply.

Keywords

Solar Power Plant , Electricity Generation , Performance Ratio , Capacity Factor , Soğuksu - Türkiye

Ethical Statement

The study is complied with research and publication ethics.

Thanks

Thanks to Soğuksu Power Plant.

References

• Hepbaslı, K. Ulgen, and R. Eke, “Solar energy applications in Turkey,” Energy Sources, vol. 26, no. 6, pp. 551–561, 2004, doi: 10.1080/00908310490438579.
• K. Kaygusuz, “Prospect of concentrating solar power in Turkey: The sustainable future,” Renew. Sustain. Energy Rev., vol. 15, no. 2, pp. 808–814, 2011, doi: 10.1016/j.rser.2010.09.042.
• E. S. Hrayshat, “Viability of solar photovoltaics as an electricity generation source for Jordan,” Renew. Energy, vol. 34, no. 10, pp. 2133–2140, 2009, doi: 10.1016/j.renene.2009.03.006.
• A. Merrouni and A. Mezrhab, “PV sites suitability analysis in the Eastern region of Morocco,” Sustain. Energy Technol. Assess., vol. 18, pp. 6–15, 2016, doi: 10.1016/j.seta.2016.09.006.
• D. Doljak, D. Popovic, and D. Kuzmanovic, “Photovoltaic potential of the City of Požarevac,” Renew. Sustain. Energy Rev., vol. 73, pp. 460–467, 2017, doi: 10.1016/j.rser.2017.01.154.
• S. Edalati, M. Ameri, M. Iranmanesh, and Z. Sadeghi, “Solar photovoltaic power plants in five top oil-producing countries in Middle East: A case study in Iran,” Renew. Sustain. Energy Rev., vol. 69, pp. 1271–1280, 2017, doi: 10.1016/j.rser.2016.12.042.
• S. Kumar and K. Sudhakar, “Performance evaluation of 10 MW grid connected solar photovoltaic power plant in India,” Energy Rep., vol. 1, pp. 184–192, 2015, doi: 10.1016/j.egyr.2015.10.001.
• O. Incekara and S. N. Ogulata, “Turkey’s energy planning considering global environmental concerns,” Ecol. Eng., vol. 102, pp. 589–595, 2017, doi: 10.1016/j.ecoleng.2017.02.033.
• F. E. Boran, T. Menlik, and K. Boran, “Multi-criteria axiomatic design approach to evaluate sites for grid-connected photovoltaic power plants: A case study in Turkey,” Energy Sources, Part B: Recovery, Utilization, and Environmental Effects, vol. 5, no. 3, pp. 290–300, 2010, doi: 10.1080/15567240802533831.
• M. Parhamfar, R. Naderi, and I. Sadeghkhani, “Risk assessment, lightning protection, and earthing system design for photovoltaic power plants: A case study of utility-scale solar farm in Iran,” Solar Energy Adv., vol. 5, p. 100098, 2025.
• T. Salameh, M. M. Farag, A. K. Hamid, and M. Hussein, “Adaptive neuro-fuzzy inference system for accurate power forecasting for on-grid photovoltaic systems: A case study in Sharjah, UAE,” Energy Convers. Manag.: X, vol. 26, p. 100958, 2025.
• A. Mehadi, Nahin-Al-Khurram, M. R. K. Shagor, and M. A. I. Sarder, “Optimized seasonal performance analysis and integrated operation of 50 MW floating solar photovoltaic system with Kaptai hydroelectric power plant: A case study,” Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, vol. 47, no. 1, pp. 10183–10207, 2025.
• S. Ata, “Jeotermal Enerji ve Kalina Çevrim Tabanlı Entegre Sistemde Yeşil Hidrojen ve Amonyak, Tatlı Su ve Sıcak Su Üretiminin Ekonomik ve Çevresel Analizi,” Erciyes Univ. J. Sci. Inst. Sci., vol. 41, no. 1, pp. 190–206, 2025 (in Turkish).
• K. Saka and S. A. Canbolat, “An evaluation on solar powered hydrogen production,” Int. J. Energy Eng. Sci., vol. 3, pp. 26–35, 2018.
• K. Saka, “An evaluation of overcast weather on generation of a grid connected PV power plant,” J. Curr. Res. Eng. Sci. Technol., vol. 5, no. 1, pp. 19–28, 2019.
• K. Saka, “An investigation on hydrogen production capacity of a PV power plant,” Fresenius Environ. Bull., vol. 31, pp. 3542–3550, 2022.
• K. Saka, “Seasonal generation of a grid connected PV power plant,” in Proc. 6th Eur. Conf. Renew. Energy Syst., Istanbul, Türkiye, Jun. 25–27, 2018.
• K. Saka, “Evaluation of a grid-connected PV power plant: performance and agrivoltaic aspects,” Environ. Dev. Sustain., vol. 26, pp. 32319–32336, 2024, doi: 10.1007/s10668-024-05098-z.
• K. Saka and M. F. Orhan, “Performance assessment and useful solar radiation analysis of a grid-connected photovoltaic plant in Türkiye,” Case Stud. Therm. Eng., vol. 73, p. 106565, 2025.
• K. Saka and M. F. Orhan, “Assessment of biogas-powered absorption cooling systems and biomass potential for sustainable rural development: A case study in Yenişehir, Turkiye,” Case Stud. Therm. Eng., vol. 66, p. 105784, 2025.
• Ö. C. Özerdem, S. Tackie, and S. Biricik, “Performance evaluation of Serhatkoy (1.2 MW) PV power plant,” in Proc. 9th Int. Conf. Electr. Electron. Eng., Mar. 29–31, 2022.
• T. İnan and A. Şimşek, “Solar power plant efficiency and economic analysis in different regional climates for selected cities in Turkey,” Int. J. Adv. Eng. Pure Sci., vol. 34, no. 4, pp. 603–610, 2022.
• T. C. Ministry of Energy and Natural Resources, “Gepa: Solar energy potential atlas of Turkey.” [Online]. Available: https://gepa.enerji.gov.tr/. [Accessed: Oct. 01, 2025].