Stars fuse hydrogen into helium for a very long time by out standards. Our own little yellow star contained enough hydrogen to radiate heat and light for ten billion years. Though it isn’t endless, our middle aged sun has enough fuel to keep on keeping on for another five billion years or so. It isn’t endless, but it’s a much longer time than anyone alive can really fathom. So how do we take advantage of such seemingly limitless energy? With photovoltaic cells. Lets examine how solar panels work and believe me it is not as easy as online video poker games at all.

By using certain kinds of elements and compounds, it is possible to strip electrons from their atoms by using only the light from the sun. Elements such as silicon or compounds like cadmium telluride or gallium arsenide have a peculiar property. If you direct a stream of photons from a light source such as the sun, the electrons in the material, given the correct frequency, will be sufficiently energized to jump out of it’s quantum state. If the substance has positive and negative electrodes attached to it, the free electrons will flow away from the material at the voltage produced.

Because this process is activated in different materials by different frequencies they are not particularly efficient with respect to the amount of light being received. Consequently different methods have been created to harness as much of the spectrum as possible.

By breaking up the light with a prism and directing the relevant frequencies to the relevant material a greater efficiency can be achieved. Another tactic is to pile the substances so that as a given frequency is absorbed, the others will travel through to the proper material. More of the spectrum, in this way, will be converted into electricity.

Another problem that affects the efficacy of some panels is the cost of material. When expensive materials are used, if the light is concentrated by lenses and focused to a small area less material can be used. This process makes solar energy make more economic sense.

An array of photovoltaic cells is broken down into modules of several cells. When wired together with some conducting material into an area large enough an effective quantity of electricity is produced.

But this is not enough to make a solar panel. The cells need to be protected from moisture and physical damage. They also need to be protected from overheating as excessive heat reduces the efficiency of the cells. Waterproof, protective cases are made to contain the arrays which are then mounted in a way to provide adequate airflow to prevent overheating.

NASA was the primary innovator of photovoltaic cells. Though the French physicist Alexandre-Edmond Becquerel, who was studying the solar spectrum, optics and electricity first noticed the phenomenon, it was more of a curiosity until NASA started using it to power its spacecraft. Problems from oil dependence to the greenhouse effect, acid rain and smog have been laid at the feet of petroleum consumption. Though not technically limitless, for the imaginable future, solar power and solar panels Ontario are unending. This non-polluting energy source may eventually move us away from the consumption of prehistoric flora and provide for a much cleaner source of energy.

The Ontario fit program offers, those who use solar panelor solar panels, the opportunity to make money by selling the solar or wind energy they produce. Visit Efston Science to learn more about how you can start producing renewable energy for money and to see how much solar panels cost.

free online casino games | casino games for fun | play casino games free | live casino gambling | live casino downloads | flash casino games free | casinos online free play | roulette gambling | online casino money