How Does Solar Energy Work

Solar energy is a concept that has been around for a while, but is only now developing into a practical means of alternative energy. The ability to generate electricity from a free and bountiful resource like the sun has the potential to be an incredible boon to both humanity and the environment. SO HOW DOES SOLAR ENERGY WORK? Solar energy is driven by the sun radiating sunlight or what is also known as photons through solar panels which then creates electricity. These panels are made from large wafers of silicon which, when exposed to light, produces an electrical current. This current then gets stored in large batteries for use at night or when the weather isn't cooperating. It may also be routed directly to the building's main grid to serve as an immediate power source. Unlike conventional electrical systems in homes and businesses, the use of solar energy requires special considerations and equipment. Silicon isn't the only material that these panels can be made from, nor is it the most cost-effective. Silicon wafers are difficult and expensive to manufacture. Newer materials such as copper-indium-gallium-selenide films are cheaper and easier to make and are flexible, but don't generate as much power as their silicon counterparts. There is even a special solar paint being developed which will allow an entire surface coated with it to generate electricity. "Advantages of Solar Energy" Although solar energy is not perfect and the technology still has a way to go, it has the potential to remove a great load from the ecosystem and from modern society's conscience. Operating solar panels doesn't belch poisonous smog and smoke into the air like coal and oil-fired power plants. It also doesn't come with the disposal and public safety nightmares associated with nuclear plants. Solar energy is also more reliable and visually appealing than wind turbines. Using solar panels for energy allows people in an urban setting to take advantage of the abundant sunward surface area of tall buildings to create something useful in a clean and efficient manner. Using them on a home in rural or remote areas allows for a level of independence self-reliability not often enjoyed in today's world. Furthermore, people who power their homes using solar energy can even make money doing so. In most places, power companies will buy unused solar electricity from homeowners. Currently, solar energy accounts for under one percent of America's total energy production. Part of this is related to costs and manufacturing concerns. However, with a little more research and development, solar energy shows great promise as a renewable power source. USEFUL RESOURCE: Union Of Concerned Scientists: http://www.ucsusa.org/clean energy/technology and impacts/energy technologies/how-solar-energy-works.html