APPLICATION OF SIMPLE STATISTICAL METHODS FOR THE COMPARISON OF INCIDENT SOLAR IRRADIATION BETWEEN THE CITIES OF NATAL/RN AND APODI/RN DURING THE AUSTRAL SUMMER
DOI:
https://doi.org/10.59627/cbens.2022.1234Keywords:
solar radiation, GHI, photovoltaic energyAbstract
Given the small annual variation of solar irradiance in certain places in the Brazilian Northeast, and given the importance of this meteorological variable for human development sectors, such as the photovoltaic energy industry, this work to compare solar radiation data from Natal/RN stations (5.837°S; 35.208°W) and Apodi/RN (5.63°S; 37.81°W) during the austral summer of the years between 2010 and 2020, to present possible potentials for solar power generation. Simple statistical methods were applied to both series, such as dispersive measures, and others. The presence of several outliers was observed in both series. As a result, insignificant differences were obtained between the values from Natal and Apodi, so that the maximum values corresponded to 7860 Wh/m2 and 7903 Wh/m2, respectively. The medians were equivalent to 6886 Wh/m2 for Natal and 6708 Wh/m2 for Apodi. Since the difference in maximum values, medians, means, standard deviation, variances and coefficients of variance betweens the two series were equal to 1%, 3%, 3%, 6%, 11% and 12%, respectively, it is concluded that the incidences of solar radiation for the locations were statistically similar during the austral summer. Thus, Apodi was introduced as a potential for the generation of solar energy when compared to Natal.
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