Every year the sun beams to the earth energy to sustain global needs of energy for the entire year. Solar energy is a technology used to convert solar energy into other forms like electrical energy to meet global requirements. As of now only one tenth of global energy needs is supplied by solar energy but the potential for the future is mind boggling.
Solar Energy is non-polluting, clean, reliable and renewable source of energy. We all should come up together to save environment in a healthier way and reduce the risk of damaging our planet Earth.
Many are familiar with so-called photovoltaic cells, or solar panels, found on things like spacecraft, rooftops, and handheld calculators. The cells are made of semiconductor materials like those found in computer chips. When sunlight hits the cells, it knocks electrons loose from their atoms. As the electrons flow through the cell, they generate electricity.
On a much larger scale, solar-thermal power plants use various techniques to concentrate the sun’s energy as a heat source. Solar energy technologies use the sun’s energy to light homes, produce hot water, heat homes, etc.
The main benefit of solar energy is that it does not produce any pollutants and is one of the cleanest sources of energy. The only limitation that solar energy possess is that it cannot be used at night and amount of sunlight that is received on earth depends on location, time of day, time of year, and weather conditions. Nevertheless, it is a renewable source of energy and requires low maintenance.