Photovoltaic solar energy through photovoltaic solar panels, solar modules or photovoltaic panels is based on the properties of certain materials for the conversion of energy from the sun in the form of radiation into electricity. Photovoltaic solar energy affects – The provision of electrical energy, in the country’s economy and in the environment.
A solar energy system takes advantage of the sun’s radiation to generate energy. It can be by means of thermal sensors or with photovoltaic cells depending on whether the sun is dedicated to heating water or converting radiation into electrical energy using solar cells. This occurs, because part of the material absorbs part of the solar radiation, specifically, matte black materials absorb a greater amount of solar radiation.
The solar radiation reaching the Earth’s atmosphere contains a set of radiation with wavelengths ranging from 0.15 μm to 4 μm, hence the potential supply that solar energy implies through the solar modules.
Photovoltaic solar energy can be used to heat water, heating, pool heating, heat production for industrial processes and cooling systems, among others.
The varied offer of solar panels for a home thanks to cheap solar panels allow solar kits to be available to all those homes that bet on clean energy and want savings on their electric company bill or do not have the possibility of their Electric company supplies them with electric power.
Solar home photovoltaic panels can be installed in groups together with the components offered in any of the solar kits, isolated connection solar kits or solar grid connection kits.
The production of photovoltaic electrical energy by means of solar modules is possible thanks to the materials and synergies between them through the technology of sheets that allow the durability overtime of the properties and the reliability of the processes. The correctly made and connected conglomerate of solar modules is what gives rise to a solar panel. Process that over time has been improving; Currently, the market offers cheap solar panels with facilities to buy improved solar panels over time, with longer useful life and excellent reliability.
Currently, solar panels or photovoltaic modules constitute an average value greater than 60% of the cost of the complete photovoltaic installation and are directly responsible for more than 90% of the energy production of each photovoltaic installation.
Characteristic parameters of a photovoltaic module
Solar panels for a house contain repeated modules along with the solar panel that gives photovoltaic solar panels the property of obtaining solar energy to transmit it through the system.
The solar modules are the consequence of a long effort over the years and that currently allows efficient photovoltaic panels to be purchased.
A photovoltaic module consists of several solar cells electrically connected to each other. If all the cells are equal and work under the same conditions, the electrical parameters of a photovoltaic module will have a direct relationship with the electrical parameters of its cells and with the number and series-parallel connection of the same.
Solar panel manufacturers for homes classify and identify photovoltaic modules by their maximum or peak power.
In addition, the differences inherent in the manufacturing processes of solar panels for homes make each of the photovoltaic solar panels unique so there is a certain tolerance to the characteristic parameters of each of the solar panels for homes manufactured.
Types of solar panels:
- Polycrystalline Solar Plates
Solar panels are also known as solar panels, solar modules or photovoltaic panels are made up of solar cells capable of producing electricity from the solar radiation that hits them.
Photovoltaic panels, solar panels or solar panels can be classified according to the type of photovoltaic cell in:
- Monocrystalline: Composed in cells of a single silicon crystal. They are recognized by the shape of the cell, circular or octagonal from cut circular cells.
- Polycrystalline: Formed by cells with multiple crystallized silicon particles. The cells are usually rectangular in shape and more bluish in color with more irregular coloring.
- Amorphous: Also called ‘thin layer’ composed of uncrystallized silicon.
The typology of the material with which a solar module is made affects the properties of the solar panel, as well as the price of photovoltaic solar panels. Well the prices of photovoltaic solar panels can vary according to multiple variables, if you have any questions about buying photovoltaic solar panels, the price of photovoltaic solar panels or the sale of photovoltaic panels, contact us.
Composition of the Solar Plate
The typical cell has an area of approximately 100 cm2, produces 1.5W of power with a voltage of 0.5V and 3A of intensity. In order to take advantage of the energy generated, cells are connected in series and parallel until adequate values of voltage and intensity are reached.
That is why in the 12V panels we will find that they have 36 cells, in the 24V panels we will see that there are 72 cells and there are also the panels called network connection panels that have 60 cells and require special regulators to remove the adequate performance.
As a curious fact, there is also another type of solar panel that has a non-standard number of cells; They are appropriate for very specific uses such as solar pumps since they are able to offer a high voltage in exchange for a lower intensity because after all, the power provided by a self-consuming solar panel is similar to other types of panel.
A very common variant within the field of direct solar pumping is the use of these for the purification of swimming pools. Specifically, we have specific systems for pool treatment kits, which allow a pool treatment water pump to be operated directly.
The operation of the solar module will be completely linked to the solar radiation that the group of solar panels is receiving. These solar panels installations are very profitable since they allow converting the energy cost of a home’s pool treatment plant to zero. All the types of solar panels exposed here are also optimal for isolated solar installations. Depending on the type of isolated installation that is required, we will look for a type of solar panel of 12V or 24V, depending on the size of the installation. Depending on the working voltage of the solar installation, their connection mode will be different.
To buy solar panels it is necessary to take into account the location of the panels, expected consumption, among other factors, to determine the price of photovoltaic solar panels and the type of solar module that guarantees your usual supply.
It is important not to be fooled by offers of solar panels and put yourself in the hands of experts to buy solar panels with a guarantee for the solar panel, as well as that the price of the solar panels is according to their quality.
What to consider before installing photovoltaic panels
Before carrying out the photovoltaic project, we recommend that you take some points into account so that the installation meets the expected performance.
How to place the solar panels
The main aspect to take into account when installing the solar panels is the orientation of the photovoltaic panel, it should be to the South and with an inclination depending on the latitude and the use that the installation will have. On the other hand, this placement can be done on different surfaces, and they will all be just as good as long as we comply with the proper inclination and orientation since if the orientation is not ideal or we do not have a good inclination, we will have certain losses.
Another point to keep in mind is the presence of shadows on the solar panels, if there are shadows even if they only appear on a panel or in a reduced area, production is greatly reduced. If the installation is made up of panels in series, by affecting one panel we affect the entire series, so it is very important to have a complete absence of shadows in the photovoltaic field.
For this reason, it is recommended to study in detail the place where the panels will be placed and check that they will not receive shadows from trees, chimneys, buildings, etc. Once the installation is done, if we are faced with a problem like this, the solution is difficult and expensive.
Structures used in photovoltaic installations
We must ensure that the kit or system that we are going to acquire has the structure that we need for the chosen location. There are many types of panel fastening structures depending on the installation location:
- flat roofs or roofs;
- uralite roofs or sloping sandwich pane in an elevated structure;
- tile roofs;
- metal roofs;
All locations have a suitable structure for its correct fastening. Solar panels have dimensions and weight due to which we must be sure that they are correctly installed, always using an appropriate structure.