Chemistry Essay

Topics: Solar cell, Photovoltaics, Fossil fuel Pages: 2 (722 words) Published: June 25, 2013
Non-renewable energies are effecting our environment for the worse. The search for new energy source such as alternative energy sources are starting to become an important factor in the human society. Solar power energy is one alternative energy source often over looked that our society should begin using.

Solar power energy works like this, “When sunlight hits a solar panel, it makes electrons in the silicon move around. (Electrons are teeny tiny specks—they’re way too small for us to see, even under a microscope.) The electrons flow through wires that were built into the solar panel. And presto! We have electricity!” (Solar Training and Renewable Energy Education). Solar energy is very effective since it is renewable. This means that the more solar energy that the human race uses, the less fossil fuels are used, which potentially reduces the amount of population and harm done to the environment. Though it benefits the environment, these solar cells have an economical toil on our society, because they are very expensive. Since solar cells are so expensive, their use has decreased, but if newer and cheaper material is found and used in these cells, then solar energy will become a common energy source.

When people go outside and see the sun, an alternative energy source is the last idea that comes to mind. The sun is often ignored and so is solar energy, but this should change. “The Sun provides 100,000 terawatts which is about 10,000 times more than the present rate of the world’s present energy consumption. Photovoltaic cells are being increasingly used to tap into this huge resource and will play a key role in future sustainable energy systems.” (Grätzel 993). The Sun puts off tons of energy and the use of solar power energy could power “the world’s energy consumption” and still have ample amount of energy left. In recent years people have become more aware of our sun and the massive amounts of energy it creates. Also, that this alternative energy source...
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