Solar panels are devices that convert sunlight into electricity. They are made up of photovoltaic cells, which are semiconductors that absorb sunlight and release electrons. The released electrons flow through the panel, creating an electric current.
There are four main types of solar panels:
Monocrystalline silicon solar panels:
These are the most efficient type of solar panel, with an efficiency rating of around 17-22%. They are made from a single crystal of silicon, which gives them a uniform appearance. Monocrystalline solar panels are the most expensive type of solar panel.
Polycrystalline silicon solar panels:
These are less efficient than monocrystalline solar panels, with an efficiency rating of around 15-17%. They are made from multiple crystals of silicon, which gives them a mottled appearance. Polycrystalline solar panels are less expensive than monocrystalline solar panels.
Thin-film solar panels:
These are the least efficient type of solar panel, with an efficiency rating of around 10-13%. They are made from a thin layer of photovoltaic material deposited on a substrate, such as glass, plastic, or metal. Thin-film solar panels are the most affordable type of solar panel. They are also lightweight and flexible, making them a good choice for roofs that cannot support the weight of traditional solar panels.
PERC (Passivated Emitter and Rear Contact) solar panels:
These are a type of monocrystalline silicon solar panel that has been treated with a special coating that helps to improve its efficiency. PERC solar panels can have an efficiency rating of up to 22%. They are more expensive than traditional monocrystalline solar panels, but they can produce more electricity over time.
The best type of solar panel for you will depend on your budget, your roof size, and the amount of sunlight you receive. If you have a lot of sunlight and a large roof, then monocrystalline solar panels may be the best option for you. If you have a limited budget or a small roof, then polycrystalline or thin-film solar panels may be a better choice.
