Home Solar Power: How the electric current is created (part 11)
Extracted from the "holes" in the silicon atom electron flow through photovoltaic cells connected in series to produce useful electrical voltage. This concept and a bit more is the focus of this article. United States is at the beginning of a huge and widespread, widespread change to solar energy as a major source of energy for our homes. Manufacturing costs have down, awareness and the need is up, and new rental options in solar energy systems compared to having to buy them all line up perfectly.
How do photovoltaic cells create an electric current?
The rest of this article explains some of the details related to the inner workings of the solar cells and how their choice, when placed in a solar array mounted on the roof can make a big difference in production solar system power.
The internal electric field of silicon diode creates a flow of electric charges only when the photons strike sunlight silicon. As the photons success electrons in silicon bonds, creating electron-hole pairs are free to separate and wander around the network of silicon or crystalline structure. The free electrons wandering near the p / exit are pushed in one direction by the internal electric field.
This movement of electronics as a result photoelectric effect results in a steady stream of electric charges in motion in a circuit within the silicon structure, ie an electrical current. The flow is directly proportional to the intensity of light and energy conversion efficiency of solar cells covered by solar photovoltaic panel. The higher the sunlight hits the silicon atom, the greater the number of free electrons collided. Ultimately, this creates a greater number of electrons flowing in and out of silicon and solar inverter.
This continuous movement of electrons shows everything Why is it so important for all solar cells over a wide solar module or to obtain the same intensity of sunlight. It is important that the solar panels to receive sunlight from the same direction and not in the shade of trees or buildings. The exact number of photons from the sun to be achieved by each solar cell in order to overturn the corresponding number of electrons in the solar cell next. In essence, the photons of sunlight hit the silicon and cause a chain reaction in silicon.
The movement of additional electrons free silicon, inside and outside hole produced in the silicon atoms creates an electric current and energy flow. Think of a game of billiards, snooker player strikes the white ball turn green ball hits the pocket. This occurs in a chain reaction as you add more balls colliding each. The slight twist here is the fact that the sun continually hitting the cue ball (ie, the solar photon hits the silicon atom) while the sunlight hits the solar cell.
Solar PV cells connected in series
Individual solar cells produce only a small amount of tension. They are the most connected in series, positive to negative poles within a solar panel to produce a useful voltage.
When photons of sunlight strike the solar cells in a chain, the internal electric field pushes the electrons of the cells in a continuous flow through the chain. The electrons moving through the structure silicon on the gain of each half of a volt during the photoelectric process. The displaced electrons are collected in a grid pattern printed circuit in cells.
Contact module manufacturers enough solar cells in series in a single module to produce a useful voltage. The typical high-voltage network module with 72 cells connected in series. Electrons moving on the solar cells get about half a volt of each cell solar. After moving through 72 solar cells connected in series electrical voltage gain sufficient to account for about 40 volts.
If more voltage is needed to produce useful electric power for domestic use, then the solar modules can be connected in series. The most common configuration of the solar unit has a solar array connected in series with 8 other solar modules. This results in a voltage final electrical performance of 320 volts.
Solar Cells, solar arrays and modules connected in series
In the last article, we explained a bit on the photoelectric effect, where photons of light hit the electrons in the silicon network and provide energy to flow. It also describes how electrons flowing from one cell to the next cell module in a gain of 1 / 2 volts of each cell.
Renting a house or buy Solar Energy System
The renting a Home Solar Energy System is fast approaching as a viable option for the electricity needs of a home. The owner of America have the option of producing renewable energy from the sun by renting a complete solar energy system versus having to buy it. This is an exciting rental service solar energy that allows the average homeowner to create their own solar electricity and keep the child energy savings they create.
Those with a suitable (ie, good sun, enough ceiling space, and moderate energy requirements), to follow the footsteps of reservation and completing the requirements of a power system installed solar have good chances of getting a solar power unit installed at home on a rental basis.
About the Author
At Solargies, our goal is to spread the adoption of renewable energy. Daniel Stouffer is a freelance writer and solar energy consultant. Solar electric system rentals allow homeowners to upgrade to solar power without the upfront system purchase. Learn more home solar energy at: => http://www.Solargies.com/Rethink_Solar.htm
 |
No items matching your keywords were found.
