Many say that photovoltaic energy is the energy of the future, but is it really? The World of Electricity explains in this article what photovoltaic energy is, how photovoltaic plants work, their main advantages and disadvantages, in addition to addressing photovoltaic energy in Brazil. Come on, guys!
What is a Photovoltaic Solar Plant?
The photovoltaic solar power plant is also known by other names, such as solar plants, photovoltaic plants, solar parks or solar farms. It is a complex that has several solar panels (photovoltaic modules), which has the ability to generate electrical energy through the energy from light and heat from the sun.
A photovoltaic solar plant can contain hundreds of thousands of photovoltaic modules to generate energy so that these plates occupy thousands of square kilometers.
Learn how a solar plant works.
Photovoltaic plants and their characteristics.
With such a large number of photovoltaic modules, solar plants are capable of generating an enormous amount of energy, and the difference for the generation of solar energy in a residential or commercial installation, for example, is exactly in the size and complexity of the project, as well as its purpose.
How does a photovoltaic plant work?
As we mentioned earlier, the operation of solar plants is very similar to residential photovoltaic energy systems, however, the proportions of a photovoltaic plant are much higher, because they are made to produce and deliver a very high volume of electricity at high levels of tension.
In photovoltaic plants, we can obtain electrical energy through the direct conversion of solar energy into electrical energy, which occurs due to the effects of solar radiation on certain materials. In a photovoltaic effect, photons contained in sunlight are converted into electrical energy through the use of solar cells.
Photovoltaic plants have photovoltaic modules that capture sunlight and convert it into electrical energy through a process called the photovoltaic effect. These modules are installed on the ground, which can be fixed to the ground or to increase generation efficiency, they are installed on a Solar-Tracker system. This system is a structure that directs the panel according to the position of the sun, to always leave it at the best angle for capturing sunlight.
Learn how a solar plant works.
Photovoltaic power generation, how does it work?
It is important to highlight that this energy is generated in direct current (DC), then sent to photovoltaic inverters, which have the function of converting direct current into alternating current (AC), as this is the type of electrical energy supplied to consumers.
Photovoltaic energy: Advantages
After everything we’ve seen so far, we can see that photovoltaic energy has several advantages, such as:
It is a renewable energy source, as the energy from the sun will still remain for billions of years;
Clean generation, because it does not emit pollutants in the atmosphere;
An excellent option for remote or difficult to access places;
The use of solar energy is feasible in practically the entire territory of tropical countries;
Less need for maintenance. In general, the durability of the equipment used is high, although the costs of replacing parts and materials are high in cases of operational problems;
In places far from energy production centers, the generation of photovoltaic energy contributes to reducing energy demand in these places, in addition to reducing the energy losses that would occur in transmission.
Photovoltaic energy: disadvantages
Despite the advantages of solar energy, the generation of photovoltaic energy has some disadvantages, which are:
Energy production can vary according to the climatic situation;
At night there is no generation of energy, so there is a need to store the energy produced during the day;
Solar panels have a low yield, although this yield is increasing over time;
Photovoltaic energy in Brazil
As we know, generating electricity through energy sources from the sun is an advantage, mainly because it is a renewable energy source. That is why in Brazil the potential of photovoltaic solar energy is very large and it is something that is being carefully considered, where all aspects are taken into consideration.
Although the photovoltaic generation has a high initial cost, it has a low maintenance cost and a long service life, making it an extremely advantageous and sustainable alternative for the country, for these and other reasons that the generation of solar energy is growing more and m