Document Type : Original Article


1 Faculty of Mechanical and Energy Engineering, Shahid Beheshti University, Tehran, Iran.

2 Science and Research Branch, Islamic Azad University, Zahedan, Iran.



Solar energy as renewable and clean energy has a remarkable share in improving the water-energy-food nexus. However, due to occupying a vast area of land, the development of large-scale photovoltaic systems is a serious challenge, particularly in regions with land restrictions. As a solution, it is argued that the installation of the floating photovoltaic systems on the water reservoirs can save land as well as reduce the evaporation rate. The aim of this study is to economically and environmentally evaluate the feasibility of the installation of a 10-megawatt floating photovoltaic power plant on a water reservoir. Results show that the payback period of investment and internal rate of return are achieved at 5.2 years and 20.4%, respectively. It is also found that if only 0.3% of the water reservoir surface is covered, evaporation volume will be decreased from 441.2 up to 515.2 thousand cubic meters. Moreover, environmental assessment demonstrates that 8470 to 15311 tons of CO2 and 27 to 52.3 tons of NOx are not released into the atmosphere. Ultimately, sensitivity analysis proves that if the capital cost is reduced by 30%, the payback period will be shortened to 3.6 years. Furthermore, such a project in Chah-nimeh will be profitable as long as the electricity purchasing tariffs are more than US$ 0.096/kWh.


Main Subjects

[1] S. A. Kalogirou and Y. Tripanagnostopoulos. Hybrid PV/T solar systems for domestic hot water and electricity production. Energy Conversion and Management, vol. 47, no. 18, pp. 3368-3382, 2006, doi:
[2] P. R. Jagadale, A. B. Choudhari, and S. S. Jadhav. Design and simulation of grid connected solar Si-Poly photovoltaic plant using PVsyst for Pune, India location. Renewable Energy Research and Applications, vol. 3, no.1, pp. 41-49, 2022, 
doi: 10.22044/rera.2021.11057.1069.
[3] T. Kjeldstad, D. Lindholm, E. Marstein, and J. Selj. Cooling of floating photovoltaics and the importance of water temperature. Solar Energy, vol. 218, pp. 544-551, 2021, doi:
[4] A. P. Sukarso and K. N. Kim. Cooling effect on the floating solar PV: performance and economic analysis on the case of West Java province in Indonesia. Energies, vol. 13, no. 9, 2020, doi: 10.3390/en13092126.
[5] M. Dörenkämper, A. Wahed, A. Kumar, M. de Jong, J. Kroon, and T. Reindl. The cooling effect of floating PV in two different climate zones: A comparison of field test data from the Netherlands and Singapore. Solar Energy, vol. 214, pp. 239-247, 2021, doi:
[6] Y.-G. Lee, H.-J. Joo, and S.-J. Yoon. Design and installation of floating type photovoltaic energy generation system using FRP members. Solar Energy, vol. 108, pp. 13-27, 2014.
[7] E. M. do Sacramento, P. C. Carvalho, J. C. de Araújo, D. B. Riffel, R. M. da Cruz Corrêa, and J. S. P. Neto. Scenarios for use of floating photovoltaic plants in Brazilian reservoirs. IET Renewable Power Generation 9, vol. 9, no. 8, pp. 1019-1024, 2015.
[8] M. S. M. Azmi, M. Y. H. Othman, M. H. H. Ruslan, K. Sopian, and Z. A. A. Majid. Study on electrical power output of floating photovoltaic and conventional photovoltaic. AIP Conference Proceedings, vol. 1571, no. 1, pp. 95-101, 2013, doi: 10.1063/1.4858636.
[9] N. A. S. Elminshawy, A. Osama, D. G. El-Damhogi, E. Oterkus, and A. M. I. Mohamed. Simulation and experimental performance analysis of partially floating PV system in windy conditions. Solar Energy, vol. 230, pp. 1106-1121, 2021/12/01/ 2021, doi:
[10] S. Gadzanku, L. Beshilas, and U. B. Grunwald. Enabling floating solar photovoltaic (FPV) deployment review of barriers to FPV deployment in Southeast Asia. National Renewable Energy Laboratory (NREL), 2021.
[11] M. Lak Kamari, H. Isvand, and M. Alhuyi Nazari. Applications of multi-criteria decision-making (MCDM) methods in renewable energy development: a review (in EN). Renewable Energy Research and Applications, vol. 1, no. 1, pp. 47-54, 2020, doi: 10.22044/rera.2020.8541.1006.
[12] Where sun meets water: floating solar market report, Washington, DC: World Bank. World Bank Group, ESMAP and SERIS, 2019. Available:
[13] Y. Wu, L. Li, Z. Song, and X. Lin. Risk assessment on offshore photovoltaic power generation projects in China based on a fuzzy analysis framework. Journal of cleaner production, vol. 215, pp. 46-62, 2019.
[14] X. Wang et al., Synthesis, structural characterization and evaluation of floating BN codoped TiO2/expanded perlite composites with enhanced visible light photoactivity. Applied Surface Science, vol. 349, pp. 264-271, 2015.
[15] P. Ranjbaran, H. Yousefi, G. Gharehpetian, and F. R. Astaraei. A review on floating photovoltaic (FPV) power generation units. Renewable and Sustainable Energy Reviews, vol. 110, pp. 332-347, 2019.
[16] M. Barbuscia. Economic viability assessment of floating photovoltaic energy, 2018.
[17] A. Siddiqi and L. D. Anadon. The water–energy nexus in Middle East and North Africa. Energy policy, vol. 39, no. 8, pp. 4529-4540, 2011.
[18] A. K. Singh, D. Boruah, L. Sehgal, and A. P. Ramaswamy. Feasibility study of a grid-tied 2MW floating solar PV power station and e-transportation facility using ‘SketchUp Pro’for the proposed smart city of Pondicherry in India. Journal of Smart Cities, vol. 2, no. 2, pp. 49-59, 2017.
[19] M. Rosa-Clot, G. M. Tina, and S. Nizetic. Floating photovoltaic plants and wastewater basins: an Australian project. Energy Procedia, vol. 134, pp. 664-674, 2017.
[20] L. Liu, Q. Sun, H. Li, H. Yin, X. Ren, and R. Wennersten.Evaluating the benefits of integrating floating photovoltaic and pumped storage power system. Energy Conversion Management, vol. 194, pp. 173-185, 2019.
[21] M. Fereshtehpour, R. Javidi Sabbaghian, A. Farrokhi, E. B. Jovein, and E. Ebrahimi Sarindizaj. Evaluation of factors governing the use of floating solar system: A study on Iran’s important water infrastructures. Renewable Energy, vol. 171, pp. 1171-1187, 2021, doi:
[22] P. Hellegers, W. Immerzeel, and P. Droogers. Economic concepts to address future water supply–demand imbalances in Iran, Morocco and Saudi Arabia. Journal of hydrology, vol. 502, pp. 62-67, 2013.
[23] D. Martínez-Granados, J. F. Maestre-Valero, J. Calatrava, and V. Martínez-Alvarez. The economic impact of water evaporation losses from water reservoirs in the Segura basin, SE Spain. Water Resources Management, vol. 25, no. 13, p. 3153, 2011.
[24] F. Helfer, C. Lemckert, and H. Zhang. Impacts of climate change on temperature and evaporation from a large reservoir in Australia. Journal of hydrology, vol. 475, pp. 365-378, 2012.
[25] M. A. Benzaghta and T. A. Mohamad. Evaporation from reservoir and reduction methods: An overview and assessment study. International Engineering Convention, Domascus, Syria and Medinah, Kingdom of Saudi Arabia, 2009.
[26] F. Gökbulak and S. Özhan. Water loss through evaporation from water surfaces of lakes and reservoirs in Turkey. Official Publication of the European Water Association, EWA, 2006.
[27] S. Azami, M. Vahdaty, and F. Torabi. Theoretical analysis of reservoir-based floating photovoltaic plant for 15-khordad dam in Delijan. Energy Equipment and Systems, vol. 5, no. 2, pp. 211-218, 2017.
[28] M. R. Santafé, J. B. T. Soler, F. J. S. Romero, P. S. F. Gisbert, J. J. F. Gozálvez, and C. M. F. Gisbert. Theoretical and experimental analysis of a floating photovoltaic cover for water irrigation reservoirs. Energy, vol. 67, pp. 246-255, 2014.
[29] D. Mittal, B. K. Saxena, and K. Rao. Floating solar photovoltaic systems: An overview and their feasibility at Kota in Rajasthan. 2017 International Conference on Circuit, Power and Computing Technologies (ICCPCT), 2017: IEEE, pp. 1-7.
[30] S.-M. Kim, M. Oh, and H.-D. Park. Analysis and prioritization of the floating photovoltaic system potential for reservoirs in Korea. Applied Sciences, vol. 9, no. 3, p. 395, 2019.
[31] A. Tavana et al. Toward renewable and sustainable energies perspective in Iran. Renewable energy, vol. 139, pp. 1194-1216, 2019.
[32] P. S. Mohsen, F. Pourfayaz, R. Shirmohamadi, S. Moosavi, and N. Khalilpoor. Potential, current status, and applications of renewable energy in energy sector of Iran: a review (in en). Renewable Energy Research and Applications, vol. 2, no. 1, pp. 25-49, 2021, doi: 10.22044/rera.2020.8841.1008.
[33] Z. Molamohamadi and M. R. Talaei. Analysis of a Proper Strategy for Solar Energy Deployment in Iran using SWOT Matrix (in en). Renewable Energy Research and Applications, vol. 3, no. 1, pp. 71-78, 2022, doi: 10.22044/rera.2021.11011.1066.
[34] M. Mirzaei Omrani, M. Zandi, S. Pierfederici, and M. Mirzaei Omrani. Investigation of an appropriate location for construction the large-scale photovoltaic power plant in Southeastern Iran. 2019 Iranian Conference on Renewable Energy & Distributed Generation (ICREDG), pp. 1-6, 2019, doi: 10.1109/ICREDG47187.2019.194155.
[35] RETScreen software, NASA Meteorology database.
[36] E. Ebrahim-zadeh. Hamoon Lake and its role in socio-ecological issues of Sistan. Water and Environment Quarterly, vol. 12, p. 13, 1379.
[37] B. S. Kumar and K. Sudhakar. Performance evaluation of 10 MW grid connected solar photovoltaic power plant in India. Energy Reports, vol. 1, pp. 184-192, 2015.
[38] M. Chandrashekara and A. Yadav. Water desalination system using solar heat: a review. Renewable and Sustainable Energy Reviews, vol. 67, pp. 1308-1330, 2017.
[39] K. Sudhakar and T. Srivastava. Energy and exergy analysis of 36W solar photovoltaic module. International Journal of Ambient Energy, vol. 35, no. 1, pp. 51-57, 2014.
[40] M. Mirzaei Omrani, R. Shahabi-Nezhad, M. Zandi, and R. Gavagsaz-ghoachani. Feasibility study of photovoltaic solar power plants construction in the Southeastern Iran: Technical and economic parameters (Persian language). 2nd International Conference on researches in Science and Engineering, Istanbul, Turkey, 2017.
[41] N. Martín-Chivelet. Photovoltaic potential and land-use estimation methodology. Energy, vol. 94, pp. 233-242, 2016.
[42] K. Madani, A. AghaKouchak, and A. Mirchi. Iran’s socio-economic drought: challenges of a water-bankrupt nation. Iranian Studies, vol. 49, no. 6, pp. 997-1016, 2016.
[43] E. Spang, W. Moomaw, K. Gallagher, P. Kirshen, and D. Marks. The water consumption of energy production: an international comparison. Environmental Research Letters, vol. 9, no. 10, p. 105002, 2014.
[44] U. Caldera, D. Bogdanov, and C. Breyer. Local cost of seawater RO desalination based on solar PV and wind energy: A global estimate. Desalination, vol. 385, pp. 207-216, 2016.
[45] 2000 tomans per 1litre mineral water, 2018, Available: