The production of a photovoltaic solar system depends on a number of atmospheric parameters, namely the solar radiation received by the surface of the panel and the temperature of the surface of this panel. However, this solar radiation and temperature are also influenced by other meteorological parameters. The objective of our work is on the one hand, to evaluate the solar potential of Dosso city in Niger and on the other hand, to study the influence of air humidity on solar radiation during a month of high heat (May) and a month of high humidity (August) during the year 2021.
This article proposes a study of the solar field and five climatic parameters of the Nigerien city of Zinder (Zinder city extends between the parallels 12° 48' and 17° 30' North and in longitude between 7° 20' and 12° 0' East. They are among the sunniest areas of Niger) from 1961 to 2010 based on experimental data. Most of the researchers work in this area uses few measured values to evaluate solar radiation. In this study we use fifty years (50 years) of experimental data. We will use two models most frequently used in the literature by researchers that are well adapted to the Niger region. After deep analysis of the evolution of global solar radiation, wind speed, temperature, duration of insolation, and precipitation during this period in this city located in the eastern part of the country, it is clear that : all solar energy applications require a rigorous, detailed and complete knowledge of solar radiation and climatic parameters of the site.
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