Discover in this post everything you need to know about the installation of solar panels, a process that can be complex. We are not talking only about the installation itself, but about all the previous and subsequent steps that have to be taken to install a photovoltaic system in your home.
Solar panels installation is a multi-stage process. We are going to explain how a solar panel system is installed in your home and what to do, from the project to the start-up and registration.
Stages prior to the installation of solar panels
- The first step in the solar panel installation process is to obtain a proposal for a photovoltaic installation based on the possibilities of the home and an analysis of the current consumption generated by the home.
- The second stage consists of a team of professionals who know how solar panels are installed to carry out a preliminary study of the type, orientation, and surface of your roof, as well as the possible associated shadows to determine if all the requirements for the installation are met. installation of solar panels selects the installation that best adapts to it and to your consumption habits. This will help to obtain better performance from the photovoltaic installation.
- Once this is done, a series of procedures and licenses must be presented to the corresponding town hall, for which, in most cases, we must wait for them to be approved by it. In addition, the corresponding fees and/or taxes that proceed in each case must be paid. It should be taken into account that you can count on bonuses for self – consumption facilities.
- By having all the previous steps covered, you can now carry out the photovoltaic installation on your roof.
How to install solar panels
We explain the methodology, step by step, on how photovoltaic solar panels are mounted. However, we must bear in mind that it is a meticulous process and that it must be done with the utmost care by the responsible technician to guarantee the optimal functioning of the system and avoid future problems.
First step: mount the photovoltaic system supports
Before placing the solar panels on the roof, it is necessary to place the supports for them on the roof. Depending on the type and inclination of this, the type of structure to be used will vary.
Fixing the roof and solar panels
Once the structure is located, we must fix it to the roof and place the photovoltaic panels on it . Depending on its type and inclination, this process is carried out in different ways.
The most usual thing is that the roof is inclined and made of Arabic-type tiles, however, a different case may occur, such as tiles. slate or flat roofs covered with asphalt cloth, among others. The anchoring of the support structure will vary depending on the roof on which it will be anchored.
Once the structure is anchored on the roof, the modules are placed and fixed to it after which they interconnect with each other, to finally be connected to the inverter .
The connection to the electric inverter
The panels are interconnected in series between the modules of the same row or string, and in parallel to connect the rows to each other depending on the panel/inverter configuration.
This is done using so-called MC4 connectors to connect the modules in parallel, or directly to the inverter. It is important to strongly tighten the connectors, since a bad connection will negatively affect the overall performance of the installation, causing possible problems such as so-called hot spots, which can also affect the structure of the panel itself.
In this way, the total electrical generation of the module system is conducted to the same point, whose final destination is to reach the inverter.
Finally, a parallel connection is made, which can be made directly in the inverter, thus completing the part of the direct current (DC) installation , and thus being conducted all the energy collected by each panel through solar radiation in form of electric current to the inverter, which will be located at a point near the electrical panel of the house.
It is important that the inverter is sheltered from the sun’s rays, that is, they should not be located on the south face of the house since its performance is affected if they heat up, so its location inside the house is recommended. the home, or if it cannot be located outside, provide it with some element of protection.
The function of the inverter is simply to convert the electricity it receives in the form of direct current to alternating current, which is what we use in our homes on a daily basis. This change is made by the investor automatically, with a specific magnitude and frequency, so that we can enjoy it without major worries.
Finally, the inverter is connected to the electrical panel, as if it were a differentiated circuit of the house, thus completing the alternating current (AC) installation part.
Connecting the batteries
If you are going to choose to store the energy you generate, apart from how to install the solar panels in your house, you are also interested in how the connection of the batteries is made.
First, you must have a hybrid inverter, capable of managing the charging and discharging of the batteries, as they are the most expensive and delicate element in the system. The storage capacity of your batteries will be based on your demand and the photovoltaic field installed.
There is more than one way to do it, depending on the voltage and capacity required. The connection of the batteries can be done in parallel, in series or in series and in parallel, always with the same batteries. In the case of parallel connections, the capacity of the batteries is doubled but maintains the same voltage.
In the case of series connection, the results obtained will be the opposite: the capacity of the batteries is maintained, but the voltage is double. And finally, if you opt for a series and parallel connection, both the capacity and the voltage will double.
The installation of solar panels consists of:
- Assemble the plate supports
- Fix the cover
- Fix the solar panels
- Make the system connected with the inverter
- Connect the inverter to the electrical panel
- Connect the batteries in the case of isolated installations
Now that we have told you how solar panels are installed, you know that the installation of photovoltaic panels is a laborious and complicated job for anyone without electrical knowledge, so it is always recommended to leave it in the hands of professionals in the sector with experience in this type of assemblies.
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