A comprehensive study of techno-economic and environmental features of different solar tracking systems for residential photovoltaic installations

Mohammad Amin Vaziri Rad, Ashkan Toopshekan, Parisa Rahdan, Alibakhsh Kasaeian and Omid Mahian

Renewable and Sustainable Energy Reviews, 2020, vol. 129, issue C

Abstract: The ever increasing rate of energy consumption, limited fossil fuels and pollution have made the expansion of renewable resources essential. Due to the suitable solar potential available in Iran, the use of solar energy has been developed more than other renewable resources. In this paper, photovoltaic (PV) panels are hybridized with battery banks and the power grid to provide electricity for 100 residential units and by performing a techno-economic-environmental analysis on the use of different solar tracking systems PV power generation is maximized. The final aim of this paper is to find the optimum scenario for reaching the highest efficiency along with emissions that are within the standard range. Also, the effect of grid sell back on the results is estimated and a sensitivity analysis is performed to generalize the results for other economic and climate conditions. Results show that the use of the solar tracking system significantly reduces the number of needed panels, but this size reduction is not always cost-effective due to the high cost of tracking units. The vertical tracking system indicated the best cost-efficiency with 0.241 $/kWh cost of energy and an average of 23% improvement on the output power. Although the dual-axis tracker improved power production by 32%, it was less cost-efficient. Sensitivity analysis indicated that with 33% renewable fraction and slightly different initial costs, the optimum cost of energy will vary from 0.227 to 0.255 $/kWh.

Keywords: Solar tracking; Renewable energy; Hybrid photovoltaic; Grid-connected (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (24)

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DOI: 10.1016/j.rser.2020.109923

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