A Short Description Of Photovoltaic Cell Arrays
Arrays of solar cells arranged in frames with solid covers are called solar panels. The cells are photovoltaic. They transform light from the sun into electrical power. The cells are protected by a clear cover and the frames that surround the cells. The number of photovoltaic cells included within a panel varies. As carbon based energy sources are depleted, many homeowners are turning to alternative energy sources such as solar energy. Sunlight is always available, with only a few geographical exceptions. The cells are constructed largely of silicon, which is a plentiful substance.
In order to understand solar energy panels, there are some terms that you should know. The panels are in three major forms at present. The photovoltaic panels are called Amorphous, Polycrystalline and Monocrystalline. They have difference conversion rates and costs to produce.
Monocrystalline or single crystal cells are the earliest version. Production is expensive, but there is good conversion. Polycrystalline cells cost less to produce, but they also have slightly lower conversion rates. Amorphous cells are the most recent technology, dating from the 1970s. They have lower product costs and also the lowest conversion rate.
The panels typically consist of several cells arranged in a rectangle within a solid frame. The entire unit is covered with a clear rigid cover to protect against dirt and breakage. On the reverse side, there are electrical wires that run from the cells. These wires supply power to the structure electrical system.
A solar cell has an output of approximately one-half volt. There is no difference in the output when the size is increased. If you want larger voltage measurements, you need to connect more cells in series. You can increase the electrical current by increasing the size of the cells. Your household needs can be partially or completely covered by using additional panels.
Panels are often placed on a roof. They might also be on the ground. Air circulation around the panels is important so that overheating doesn't occur. A location should be selected that receives the most possible hours of sunlight every day, regardless of the season. Trackers are added to many installations of panels so that the panels automatically adjust for optimum exposure to the sun at the correct angle. Best conversion results are obtained when there is a right angle orientation between the sun's rays and the panel.
Maintenance on panels is very light. They can be expected to last for up to thirty years. You will need to clean the surfaces occasionally. Use of water and a mild dish soap is recommended. Remove any droppings, debris and dirt from the clear upper surface regularly. The frames should be tightened up to prevent wobbling. The wiring on the panels also needs to be checked for connectivity.
More and more homeowners are making the switch to solar panels for all or part of their home energy needs. With today's technology, you can live virtually anywhere in the world without worrying about where the utility company lines are located. Working online from a natural setting is possible for anyone.