Solar Energy As A Alternative Energy Source

2941 WordsNov 23, 201412 Pages
Introduction The concept of solar energy is not a new one. We have seen it in practice from solar powered calculators, garden lights, watches, and a wide variety of other novelty products. However, the idea of solar energy as a sustainable, renewable form of electricity, is on another level completely. Solar energy is one of the most popular and fastest growing sources of alternative energy not only in the country, but in the world. Solar energy is the conversion of power from the sun to usable electricity (Alternative Energy, 2014). The most common source of solar energy utilizes photovoltaic cells to convert sunlight into electricity (Alternative Energy, 2014). Photovoltaics use a semi-conductor to absorb the radiation from the sun, creating and emitting electrons, which are then harnessed and used as electricity (Alternative Energy, 2014). Pros of Solar Energy Solar energy is a renewable energy source, which means that unlike non-renewable energy sources such as fossil fuels, coal, and nuclear energy, we cannot run out of solar energy (Maehlum, 2014). As long as the sun is alive, which according to NASA is another 6.5 billion years, we will have access to solar energy (Maehlum, 2014). The true potential of solar energy is astounding and overly abundant. The surface of Earth receives 120,000 terawatts of solar radiation, better known as sunlight, which is 20,000 times more energy than what is needed to supply power to the entire world (Maehlum, 2014). Solar energy is
Open Document