PV Solar Panel is an excellent source of renewable energy
, and its technology can help reduce carbon footprint and electricity bills. It is a simple, safe, and reliable energy resource. Solar panels are a type of photovoltaic cell that converts sunlight into electricity. They are often used to power buildings, homes, and other structures. They are usually installed on roofs to take advantage of the sun's rays.
Photovoltaic cells use semiconductor material to generate electricity. When photons from the Sun hit the surface of a photovoltaic cell, they may be reflected, pass through, or absorbed. Only the absorbed photons provide enough energy to create electricity. Special treatment of the front surface of a photovoltaic cell makes it more receptive to dislodged electrons from the atoms within the semiconductor material. The movement of these free electrons creates a voltage potential, like the negative and positive terminals of a battery, across the cell.
When connected in a series string, these cells produce DC current. In a typical PV module, the current from all the cells is connected to a diode which turns the current into alternating current. The alternating current is then fed into an inverter which converts it back to DC and delivers the energy to an external load.
Many different types of photovoltaic panels are available. They vary in size, efficiency, and cost. The most efficient panels are monocrystalline silicon, which is dark blue with blunted crystal edges. These are most effective when struck by perpendicular sunlight, and they have a conversion efficiency of 18-21%. Polycrystalline silicon is less expensive and works well with diffused sunlight, but they are not as efficient.
Another option is a thin film, which is a bit more flexible and can be used on curved surfaces. They are less efficient than monocrystalline and polycrystalline, but they work well in shaded conditions and at higher temperatures.
Most PV systems are grid-tied, which means they send some of the electricity they generate to the utility company. They are also able to connect to battery storage, which allows them to store energy for use when the sun is not shining. This type of system is popular in residential and commercial applications, and is ideal for locations with high electricity usage or high electric rates.
PV modules can be mounted on the ground or on rooftops. The optimal angle for a solar energy system depends on where you live and the time of year. If you live in the northern hemisphere, it is recommended that your panels be oriented due south to capture the most sunlight throughout the day. If you don't have the space or budget for a large array of PV panels, you can also purchase smaller PV kits that include just a few PV panels and an inverter to make your home or business self sufficient. To see which type of PV system is right for you, consult with a local certified installer. They can help you choose the best system to suit your needs.