As the heading suggests this is a brief description of solar energy, and if you have ever asked how does solar energy work this is a good general introduction. This article will cover photovoltaic cells.

Solar power technology has advanced a great deal since its beginnings. A photovoltaic cell is a device that generates electricity by reacting to the suns light rays. To generate a useful amount of electricity, many of these cells are combined in a solar panel. These panels are also known as photovoltaic cells, solar cells and solar panels.

A solar panel typically generates 12 volts DC (Direct Current). These panels can be used individually or they can be wired together in what is called an array. The number of panels required is determined by the amount of electricity required and the available sunlight. There are many other factors that determine solar power effectiveness.

The amount of electricity generated by one solar panel will be determined by the intensity of the sunlight, cloud cover, weather conditions and so on.

In most situations, you will require some way to store the power that is generated. This is accomplished with batteries. Batteries will store the electricity until it is needed. In some areas homeowners can connect to the electrical grid and the electric company will use any extra electricity generated and you will be given a credit. Basically you are selling it to the electric company.

When using batteries to store power for future use the quantity of batteries required will be determined by the amount of energy storage necessary.