silicon solar cell manufacturing process
Solar panels work by converting sunlight into electricity. The science behind this conversion is known as photovoltaic technology. Photovoltaic cells or solar panels, which are most commonly referred to are the main components of any residential solar power system.
Photovoltaic (PV) produces electricity directly from the electrons that are released when sunlight hits the surface of the photovoltaic cell and interacts with the semiconductor material in the photovoltaic cell. These cells are connected together to form a photovoltaic panel, which is the smallest PV component sold commercially. The PV modules range in power from 10 watts to 300 watts.
The raw material for the solar panel is silica (sand). The manufacturing process removes all impurities and defects, and the results in a silicon solar-grade feedstock. From there, the silica is coated with boron or phosphorus to alter the frequencies of light meets silica.
When sunlight Visits to the solar cell with enough energy from photons into free electrons called the light in the crystal structure of silicon, forcing them through an external circuit or Direct DC Load and return across the solar panel to start the process again (hence the source of renewal).
The flow of freed electrons results in a voltage output of approximately 0.5v per single crystalline solar cells. The amperage output is directly proportional to the area of the cell surface â € "on a solar cell 7amps to 6 inches square. Typically you will see 30 to 36 cells connected in series or in parallel with other solar modules from a complete solar panel to charge your battery bank, within your solar system.
Module PV produces direct current (DC), but their home is used alternating current (AC). Therefore, solar panels require a converter included in the system to convert direct current to alternating current. This is accomplished with an inverter, a special piece of equipment that converts electricity or changes DC to AC.
Once the solar panel (solar panel collection Wired together in your solar power system) starts producing electricity can use energy electricity, store it for later use or sell back to your local utility if your system is connected to the network. The sale back to net income refers to the measurement.
As more and more homes convert to solar power, we can expect to see major improvements in the efficiency of solar cells as we have seen improvements in gas mileage in cars with carburetors, fuel injection, etc.
To store the unused electricity for later use, will need to incorporate batteries into the solar system. These batteries have the same purpose as the batteries in a car. Each time you start your car, the engine is the use of electrical energy stored in the battery to deliver the starter. Have you ever tried to start his car and nothing happens? If the holder is working properly, you know that the battery is dead and now there is no electricity available to power the starter which in turn starts the motor.
Solar batteries store the excess PV electricity until needed at a later time to run your appliance or lights, etc. Once the batteries are fully charged you need to disable any power of entry or being damaged. The solar batteries are DC just as the battery of your car. This means that the batteries will be installed in the solar system between the PV cells and inverter.
Note: you'd better buy the best deep cycle batteries that can pay. Industrial deep cycle batteries can cost $ 200 each, but have a life expectancy of 5-8 years. The battery in your car will last only 1 year in deep cycle applications.
It is worth noting that even though lead acid batteries are not environmentally friendly, alternative dependence on fossil fuels is a worse option.
