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All You Need to Know About Solar Panels
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As electricity prices are increasing day-by-day, there has been a tremendous rise in the sales of solar panels around the world. A large number of homeowners are getting solar panels installed in their homes who want to avail benefits of a system that generates green energy, as well as saves them from ever-increasing electricity prices.

Solar Electrician Melbourne - RTP Electrical

Let’s have a look at some of the important things that one needs to know before installing a solar photovoltaic system on their roof.

  • Working of a Solar PV (Photovoltaic) System: Some materials have the capability to generate electricity when lights fall on them. This is called the photovoltaic effect. Solar panels utilize this effect in order to convert energy from sunlight into direct current (DC) electrical energy. After that, an inverter unit converts it into alternating current (AC) for your home’s electrical circuits.

  • Any extra energy can be sent back to the electricity grid or it could be sent into a battery storage system, so that you have the option of using this stored power later at night. Solar panels work best when they are north facing and pointed directly at the sun at a perfect angle and not blocked by trees or shading. The efficiency of solar panels also depends on your location, as well as the weather.

  • Cells, Modules, Panels and Arrays: A majority of solar cells are designed using silicon. Solar panels, also known as modules, feature a number of solar cells that are connected together and sandwiched between protective glass and a backing plate. The whole panel is normally surrounded with an aluminium frame. A typical installation includes lots of panels connected together in an array.

Types of Solar Panel:

Monocrystalline

Monocrystalline are usually black in colour and have higher efficiency than multi-crystalline or polycrystalline models that are normally dark-blue and are sometimes said to have better temperature tolerance. The main difference lies in the manufacturing processes of the silicon cells in each type.

Interdigitated Back Contact Solar Cells (IBC)

They are also known as Rear Contact Solar Cells and are a variant of standard solar cells. They can attain higher efficiency by having all the electrical contacts on the rear of the cell, rather than at the front, so that there are no metal contact strips restricting light from getting to the cell surface.

Thin Film Solar Cells

Thin film solar cells are designed using a thin layer of photovoltaic material, (like amorphous silicon, cadmium telluride or copper-indium-gallium-selenide) on a base plate of glass, metal or other substance. This technology is evolving and while it promises more flexible applications as compared to standard solar panels, it is so far less efficient and is rare in rooftop arrays.

This was a brief guide on solar panels. Hope it will help you in the process of commercial solar panel installation.

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