Solar energy at home returns investment in up to 6 years

The energy system generated by sunlight has been conquering new customers increasingly in the region precisely because it promises a cheaper energy bill.

Solar energy is obtained through the conversion of sunlight into electricity by photovoltaic effect.

According to Alexandre Bueno, partner of a startup of Araçoiaba da Serra (SP), the process is basically summarized when the particles of solar lights meet the solar panel, where they collide with the atoms of the panel material and provoking an electrical current that Charge the batteries.

The forecasts indicate that, in 2024, Brazil will have approximately 887,000 solar power systems installed throughout the territory.

According to Companhia Paulista de force and Light (CPFL), solar energy gained knowledge in the country in 2012, when a normative resolution of the National Electricity Agency (ANEEL) came into force.

It allows the Brazilian consumer the right to generate energy from renewable sources.

Currently, in Sorocaba, there are 185 residential, commercial and industrial consumers who use this type of energy, according to a survey made by Envo (CPFL's arm in solar energy) this year, along with ANEEL data. The city of Jundiaí (SP) has 120 consumers.

No need to make any renovation in the property, just install the panels. For example, in a house with four people, in which an energy account can be of, on average, R $250, would fall to R $50 the month, as Alexandre explains.

However, the price of the initial investment does not attract many people, which is around R $15 to R $20000 reais. This value, over time is reversed in energy bills about 95% cheaper. As per use, it is returned in up to 6 years according to the energy consumed.

The electrical engineer Anderson Demetrios explains that, despite the service, the use of the energy provided by the concessionaire is not dispensed.

"The energy expenditure is given by ' credits '. For example, on a sunny day, photovoltaic panels will generate a lot of energy, but the Dweller may not consume everything in one day. So, you accumulate ' credits ' to use the energy the other day. In winter or on days of little sunshine, the plates may not absorb the necessary energy. So, the accumulated credits are used, that is, often the sunny day accumulates credits for the day when there is no sun, "he says.

It still counts that the credit accumulation systems are stored up to five years after the accumulation.

"They can also be used elsewhere, for example, a resident who has a trade or office in the same region of coverage of the company, he can use the credits elsewhere," he explains.

Unpolluting Energy

Also according to Alexandre Bueno, when using solar energy, the consumer ceases to use sources, such as coal or natural gas thermal. It also avoids the emission of pollutants that can be generated by these types of plants, such as sulfur oxides and nitrogen.

According to the Brazilian Association of Photovoltaic Energy (ABSOLAR), in 2018, Brazil installed 1.2 gigawatts per country, totaling 2.4 gigawatts installed. The state of Minas Gerais is ranked first in the ranking of the Brazilian states that most uses solar energy.

To G1, a resident of Sorocaba (SP) comments that having solar energy was one of the best acquisitions he made this year.

"I installed the panels six months ago at my house and my company and it was one of the best investments I ever made. With the system of credit accumulation, I can use what's left in my company, then hitting the credits. In a few years, I'll have free energy, "he says.

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