Solar Energy Research Paper

814 Words 4 Pages
Solar Energy Energy is considered as the most important issue of the 21st century. About 85% of today’s modern world use of energy comes from fossil fuels (Blah Blah). These particular resources, fossil fuels, are finite in quantity, and has been a major cause of air pollution and global warming. Scientists are finding alternative sources of energy to solve the century’s puzzle, a resource which is renewable, natural and efficient such as solar energy. Over 2700 years ago, people have been harvesting solar energy to make fire by magnifying sun rays via glass lenses (http://www.conserve-energy-future.com/various-solar-energy-facts.php). Nowadays, solar energy is harvested by solar panels. This paper will explain the basic mechanisms of solar …show more content…
The Sun provides Earth a tremendous amount of energy - powerful enough to drive all the environmental processes that occurs at the surface of Earth (Foster 7). “The amount of energy humans use annually, about 4.6 × 10 20 joules, is delivered to Earth by the Sun in one hour.” (George). This is a quantity of energy far from what humans need. Despite solar energy is considered as an economical energy source, it cannot be utilized as such; it must be transferred into a useful form of energy and contained. Nowadays this conversion is most preferred to performed by solar …show more content…
Despite the fact that solar energy is free, it’s technologies are not quite inexpensive. This fact may become an obstacle for many to obtain solar energy; however “over the past three decades, a significant reduction of the cost of solar products has occurred” (Foster 231). Furthermore, governments from many developed countries have been helping its citizens to surpass the pricing obstacle, one positive example would be the Australian’s government. “Over 1 million residential photovoltaic solar systems are installed in Australia, and it’s estimated that more than 72,000 solar hot water systems were installed during 2012” (Energy Explorer). This is 8 percent of Australia’s total use of

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