In the current context of sustainable development, humanity is looking for alternative
energy sources, with solar energy being one of these sources, and the availability of
solar energy on the earth's surface is much higher than the global demand for
electricity. It is important to collect reliable solar radiation data, as well as to establish
a correlation that allows characterizing the seasonal radiation potential and correlating
it with the effectiveness of the generation of photovoltaic energy distributed throughout
the year. The research aimed to characterize the global solar radiation, as well as its
seasonal distribution, using hourly (6 to 6 pm) and monthly data, from September 2015
to December 2018, applying arithmetic mean calculation. And relate it to the generation
of photovoltaic energy for the period from May 2018 to July 2021. Using the computer
program Microsoft Excel, tables and graphs were generated that helped to better
understand the research and explain the results. It is observed that the times with the
highest peak incidence of solar radiation are 1pm and 2pm, with a quantity of 5,633
Kj/m². For the dry season, global solar radiation totals 53%, and 47% in the rainy
season. The months of September and October concentrate the highest levels of solar
radiation with 21,796 and 21,556 Kj/m² and photovoltaic energy generation is 1,200
kW/h. There was a statistically significant correlation between solar radiation and
photovoltaic energy generation (R=0.70; p<0.05) showing that the power generated by
a photovoltaic system is directly linked to the radiation intensity. The data obtained, for
now, were sufficient to answer the questions raised. The city of Santarém-PA has
global solar radiation potential capable of satisfying the generation of photovoltaic solar
energy, even in the winter period where there is a 22% loss of solar radiation.
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