A solar panel ultimately uses the sun's energy to create electricity. When sunlight hits most objects, its energy is given off in the form of heat. A solar panel is the exception. Instead of heating up and making no use of the energy, a solar panel converts the sun's energy into an electrical current. A solar photovoltaic panel contains silicon crystals. Silicon is an excellent material to use because it conducts an electrical current when it comes into contact with light energy from the sun. In a crystal of silicon, the atoms are bonded via sharing of electrons, as with many other substances. When light is absorbed by the panel and silicon, electrons shift to higher energy levels, which gives them increased movement and motion, creating an electrical current. This current is then converted into electricity, and it is sent back to the grid to be utilized by energy consumers.
Solar panels are increasing in appearance as a result of the depletion of fossil fuels on the planet due to human usage. Today, it costs about $0.74 to produce a watt of solar energy. In 1976 when some of the first panels were being used, it cost as much as $74.67 per watt to produce solar energy. The cost trend continues to fall, making solar panels an affordable alternative for many families. They are becoming more and more apparent in American society, as well as worldwide.
Info courtesy of Mosaic Solar.
Solar panels are increasing in appearance as a result of the depletion of fossil fuels on the planet due to human usage. Today, it costs about $0.74 to produce a watt of solar energy. In 1976 when some of the first panels were being used, it cost as much as $74.67 per watt to produce solar energy. The cost trend continues to fall, making solar panels an affordable alternative for many families. They are becoming more and more apparent in American society, as well as worldwide.
Info courtesy of Mosaic Solar.