This paper presents a comparison of the energy production in grid-connected photovoltaic systems (GCPPS) from measured and calculated radiation data. The Linke turbidity (TL) factor for the region of Porto Alegre, Brazil, was extracted considering the data of direct solar radiation from the typical meteorological year (TMY). The average annual turbidity value obtained of 4.03 agrees with the wet climate of the region which presents only 17.26% of clear-sky days. There was a difference of 27.5% in the results of the produced energy, which drops to 6.5% when compared with only sunny days in the region, suggesting that the model in the current configuration for this type of estimate is barely adequate.
Simulation of Energy Production in Grid-Connected Photovoltaic Systems From Measured and Calculated Data From Clear-Sky Radiation Model
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received October 13, 2014; final manuscript received November 25, 2014; published online December 30, 2014. Assoc. Editor: Santiago Silvestre.
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Henrique Rossa, C., Batista Dias, J., and Henrique Macagnan, M. (June 1, 2015). "Simulation of Energy Production in Grid-Connected Photovoltaic Systems From Measured and Calculated Data From Clear-Sky Radiation Model." ASME. J. Sol. Energy Eng. June 2015; 137(3): 034502. https://doi.org/10.1115/1.4029381
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