Solar Energy Overview

Solar energy is a renewable, clean energy that has been around for thousands of years in one form or another. Following is an overview of solar energy.

Solar Energy Overview

Solar energy is all about harnessing the power of the sun to produce energy. The sun rains enough solar energy on the Earth in one day to power the entire energy needs of the world for one year. Solar energy is considered a renewable energy source because it will exist for as long as our sun does, estimated to be another 4.5 billion years. Solar energy is also considered a clean energy because it does not produce pollutants or byproducts harmful to the environment.

Solar energy was the first energy source used by mankind. Of course, the use was limited to drying things and heating caused by direct contact, but it was a use. In modern times, solar energy has been a power source since the early 1950s, but was not widespread due to technological issues which rendered it an ineffective and expensive energy source. With technology advancements, solar energy is moving to the forefront as a potential alternative to fossil fuels.

The future is indeed bright for solar energy as new solar nanotechnology is close to creating solar platforms that boggle the mind. For instance, a few companies are trying to create solar quantum dots, which will be mixed in the paint you use for your home. Yes, you will actually paint on solar energy panels that will power your home

Currently, solar energy is produced primarily through the use of solar cells, also known as photovoltaic cells. The process works by placing the cells in direct sunlight. Sun hits the cells causing a chemical reaction that creates an electric current. The current is then turned into electricity. The problem with these cells, however, is they are only about 15 percent efficient.