Photovoltaic devices are directly connected to sunlight to generate electricity. There is certain electronic process that occurs naturally with the sunlight by use of certain materials called semiconductors. Semiconductors are bundled with electrons. Thus electrons in this material are freed when solar energy affects the panel. Those electrons then pass into the electric circuit to power the electrical devices or they are sent to electric grid to save the power for later consumption. Power generated in photovoltaic (PV) are large enough to handle home and large businesses.
Detailed PV working – Technical description
With the solar energy, photons strike semiconductor and those photons are ionized from the panel. This makes the outer electrons to break and allow it to free from its atomic bonds. According to semiconductor structure, the freed atoms are released in one direction which in turn creates electric current to flow to the devices. Usually solar cells are not effective to the expectation as it sometimes creates heat energy instead of electricity. It is because solar cells are not efficient like crystalline silicon solar cells. To make normal solar cells to be efficient like crystalline, high purity wafer silicon are doped with different impurities and joined together. This results in a perfect electrical current transformation within the solar cells.
Types of PV technology
PV technology is classified into two types. They are,
- Thin film PV – This is a fast growing panel with commercial solar market. Thus layer of thin film makes the efficient power energy. But this can be used in small scale purpose. This is actually cheaper and affordable for residential use.
- Concentrating PV – This uses direct sunlight and the process is done with lenses and mirrors. The solar energy is converted into high efficiency cells to be more effective. They are perfect for large scale purpose.
Depending on the usage, you can choose any of the types. To save power consumption charge, it is better option to opt with PV system. When you choose a photovoltaic system, it is important to consider the following factors.
- Wiring and connection
- Inverter efficiency
These are the energy efficiency blocking agents that has to consider while installing a photovoltaic electric system. Usually, these terms are considered by the photovoltaic electrical contractor bishop ca before planning and installing. Refer online resources for further information and get it installed without any other plans.