Learn EXACTLY How Solar Power Works

A solar panel basically consists of a cluster of solar cells or photovoltaic cells that can generate electricity. Though the word photovoltaic may sound rather outlandish, its inner message is quite clear – Photo means light and Voltaic stands for things related to electricity. Moreover, we are fairly familiar with these tiny electronic marvels since our hand held calculators are mostly powered by them. Though in their early stage, PVs were exclusively used in space, today they are extensively used in generating home electricity. Therefore, once we come to know how the PV works, it would be comparatively easier to know how solar panels work.

Photovoltaic cells are made of a singular material technically called semiconductor such as silicon that is commonly used now. When light strikes the PV cell, some portion of it gets absorbed within the semiconductor substance. In other words, the energy of the absorbed light gets transferred to the semiconductor. This energy has the power of knocking the electrons loose and permitting them to move freely. Photovoltaic cells also have a few electric fields that guide the freed electrons to flow in a chosen direction while the flow of the electrons may be described as current. By arranging metal contact points on the top and the bottom of the photovoltaic cell one can draw that current off to use externally.

To understand how solar panels work, one must take into account that photovoltaic cells form the core of a solar panel. As a matter of fact, multiple PV cells are usually pooled to make a module while multiple modules are assembled to form a solar panel. Securely connected together and neatly arranged in a framework that is covered by fully transparent glass, the solar panel is capable of producing electricity when sunlight hits the panel.

Solar panels are usually fitted on rooftops or any other convenient point that receives sunlight most of the day. However, the electricity generated by a solar panel is DC or Direct Current whereas electrical appliances all over the United States are run by AC or Alternate Current. So, an inverter is required to transform the DC output to AC (to be more precise 120 volt AC). However, a solar panel will continue generating power as long as sunrays strike the panel but will stop producing it when the sun goes down. But this does not necessarily mean that there will be no lighting at night. Power in the night may come from the grid if the solar panel is integrated with it or may be drawn from a battery bank if such facility is available there.

Installing solar panels for your home has today become easier than ever before. You will just need to know how to install solar panels and where to put it up, places where you can get the parts cheaply, learn to wire the system and also know the safety precautions. Installing residential solar panels is great because you can save a lot of money on your electricity bills and also make a contribution to clean up the environment.