What are solar panels?

3 May 2022 | Solar Energy

What are solar panels?

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What are solar panels?

We live in an era where clean energy is more important every day in order to take care of the planet and to protect the environment. Solar energy is shown as one of the best renewable energy alternatives because it does not produce CO2 emissions like fossil and other types of energy. It is an inexhaustible energy that provides a clean, cheap and ecological energy.

Solar panels are devices formed by a collection of solar cells that convert sunlight into electrical energy through the photoelectric effect. Solar panels are installed on roofs and areas where the sun’s rays shine for longer, in order to take advantage of all the daylight hours.

Solar technology has evolved over time and solar power systems now provide benefits for homeowners and companies all over the world.

Solar panels, DC to AC inverters, power meters and batteries are the main components of a solar energy system needed to transform the sun’s rays into consumable electrical energy.

Solar panels convert the sun’s energy into electricity

How many types of solar panels are there?

When you install a photovoltaic system you can use three main categories of panel options:


Monocrystalline solar panels.

These panels have a uniform crystalline structure and are more efficient than polycrystalline solar cells. Monocrystalline panels have higher efficiencies and sleeker aesthetics.


Polycrystalline solar panels.

These panels are formed by solar cells containing multiple crystal structures of silicon, melted together and formed into solid blocks. They have lower efficiencies, but its cost is lower.


Thin-film solar panels.

These solar panels can be made of a variety of materials like Gallium arsenide, Amorphous silicon, Cadmium telluride or Copper indium gallium selenide. They are called second generation solar cells and are more flexible than the other types of solar panels.

Advantages of using solar panels

The sun is a powerful energy source and using solar panels to take advantage of solar energy provides a number of benefits such as:


Lower the electricity bill

Using a solar panel system to generate electricity from sunlight will save on the energy bills. The sun is a free energy source that can be used to generate your own electricity and decrease dependence on electricity supply companies.

The size of the solar system installed and the electrical use that is made, will affect the amount saved on the electricity bill.


Truly renewable energy source

One of the most important advantage of solar panels is that solar energy is a truly renewable energy source. The sun will die within five billion of years, so sunlight will be available to us at least for that time.

Solar energy production does not generate any noise, produce gases or pollute the water. It is a really green energy.


Low Maintenance Costs

The solar energy systems have to be cleaned a few times per year. That’s the only maintenance expense necessary so the repair and maintenance of these systems are really economical.

After covering the initial cost of the solar panels you can expect a little spending on repair work.

The energy that the sunlifgts provides to the earth for only one hour could meet the world’s energy needs for one year. The solar panels are the main devices on a solar system to convert sunlight into electrical energy.

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Kaseel is a German engineering company founded in the early 20th century. For more than 20 years we have been improving photovoltaic technology to help build a greener world. Be part of the change and invest in the fastest growing clean energy.