Solar Panels and Solar Energy

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Global warming is the gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth’s climate. The average temperature of the Earth has risen between 0.4 and 0.8 °C over the past 100 years. The increased volumes of carbon dioxide and other greenhouse gases released by the burning of fossil fuels, land clearing, agriculture, and other human activities, are believed to be the primary cause of the global warming. And these result to rising sea levels due to the melting of the polar ice caps, as well as an increase in occurrence and severity of storms and other weather events.

Fortunately, technology advancement has introduced new way of utilizing the most abundant resource of the planet; the heat of the sun. The production of solar energy clearly a way to diminish our dependency to fossil fuels, and is a good way to mitigate global warming by lowering the emission of greenhouse gases. Every hour the sun beams onto Earth more than enough energy to satisfy global energy needs for an entire year. Solar energy is the technology used to harness the sun's energy and make it useable. Today, the technology produces less than one tenth of one percent of global energy demand.

The energy extracted from solar radiation by solar cells is vital to expanding our source of energy. By figuring out how to maximize the efficiency of solar panels, we can build better cells and models for usage in homes and businesses. The purpose of this experiment is to gain a better understanding of the relationship between solar cell voltage output and the angle of incidence with the Sun’s rays. Since the Sun is never stagnant, an understanding of this relationship will help in designing practical positioning of solar panels.

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