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According to ABSOLAR data, solar energy represents 1.7% of the Brazilian energy matrix. When compared to other countries, the number is still small, but it is estimated that this number will double by the end of the decade, after all, the installation of photovoltaic panels is becoming more accessible every day.
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So we brought some information you need to know about solar energy. This makes it easier to plan your photovoltaic system. Even until the end of 2022, there is a tax exemption for those who want to install this type of service in their home. So, don't miss the opportunity!
10 essential information about solar energy
Currently, solar energy is highlighted in the energy matrix of many countries. This is because it represents a more accessible generation, using an inexhaustible resource: the sun. So, check out 10 facts about solar energy before installing your photovoltaic panel!
1 – Qual é a vida útil das placas fotovoltaicas?
In short, photovoltaic panels have an average useful life of between 20 and 30 years. At the same time, if there is good maintenance and proper care, they are likely to last even longer, ensuring good productivity. However, the current plates have a standard stipulated by the manufacturers of up to 30 years of validity.
2 – A eficiência da geração
Today, it is possible to generate a large amount of energy with a single plate. However, their efficiency is low, with an average of 14 to 16%. In this way, it is necessary to build a system that contains several plates, to guarantee the correct production of energy.
3 – Rendimento das placas
When sizing the photovoltaic generation system is done, a loss of aging of the plates is expected. Thus, the annual loss is 0.8% per year.
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4 – O sombreamento prejudica a geração de energia solar?
Yes! Shading greatly harms the generation of solar energy. Therefore, it is important to study in detail the variation of the sun's position throughout the day and during the seasons of the year. In this way, it is possible to verify the most critical points, in addition to the percentage of reduction in solar energy generation.
However, it is worth mentioning that the loss can be reduced, through insulation in the parts affected by an opening of new strings, in addition to a better inverter sizing project.
5 – Posição das placas
When we think about installing a photovoltaic system, we soon think about the position of the plates, a super common doubt. In this sense, to ensure the best orientation of the plates and obtain the best radiation throughout the year, they must always be facing north.
However, this difference in the position of the tiles tends to be insignificant, that is, it can be compensated by installing more tiles. Also, to fix small slopes, it is recommended to use several additional boards, which should also face north.
6 – A energia solar requer fácil instalação
Unlike other systems, such as electricity, solar energy does not need very complex structures. Generally, the structure of the site can be easily adapted to receive the plates, reducing the total cost of the work.
In addition, generally, only solar panels, connecting cables and a central piece of equipment, called a voltage inverter, are needed. So don't think you're going to spend a lot on installing a solar power system.
7 – A energia solar não é gerada pelo calor do sol
Unlike what many think, solar energy does not work due to the heat generated by the sun. In fact, to generate energy, light and solar radiation in the atmosphere are largely responsible for the production of photovoltaic energy.
8 – A energia solar pode ser monitorada pela internet
A great curiosity about solar energy is that some generation equipment allows internet connection. In this way, it is possible to monitor the performance and production of your photovoltaic system online. All you need to do is have a smartphone and a Wi-Fi connection.
9 – O sistema de geração fotovoltaico funciona com chuva?
Yes! The solar effect that generates electrical energy occurs by solar irradiation. In this case, even in periods of rain – or when the weather is cloudy – it will be possible to generate electricity. However, the generation yield can fall between 10 to 30%. On the other hand, if the system is hit by heavy rains, generation may stop temporarily.
Read more: 5 applytives to track cell phone by number
10 – As placas solares são resistentes a granizo?
Yes! One of the biggest curiosities about energy is that photovoltaic panels are resistant to hail. This happens because they are protected by a 4 mm thick tempered glass. However, if the plates are impacted by storms or other severe weather phenomena, the damage can be extensive.
