There are several types of solar panels on the market . All types have different uses and degrees of advancement. It is not always profitable to bet on the best. For example, when we want to use this solution to illuminate a traffic signal or a small pedestrian crossing, we can use weaker cells from previous generations.
Monocrystalline or polycrystalline panels: what is the difference between them?
However, in the context of the construction of domestic solar power plants, the situation is completely different. The requirements are definitely increasing here, so there are no shortcuts. The most popular cell types in this field are monocrystalline and polycrystalline . How do they differ from each other and what do we focus on at Stilo Energy?
If we see black cells, it is most likely that they are the most advanced and modern monocrystalline panels . They are, without a doubt, the best option available at the moment. First of all, because they are the most effective. By focusing on these panels, we can count on the most efficient production of electricity using as little space as possible.
In other words, they give the most energy, so we will need fewer panels to generate more energy. So if we have a small roof or smaller plot area, investing in monocrystalline panels will be the best solution available. At the moment, monocrystalline panels are the most modern, but in time they will surpass all the others and will become the only common standard. Its efficiency is around 15% to 19%.
It is almost certain that the blue color means that we are dealing with polycrystalline cells . “Almost” because the solar collectors known for years also have a similar color, therefore a disoriented person can confuse these two different systems. Compared to monocrystalline cells, polycrystalline cells are characterized by much lower efficiency.
Not long ago, however, they were the most popular on the market. Currently, monocrystalline cells are successfully replacing them. In practice, they are a bit cheaper than monocrystallines, but also less effective. This means that we have to use more cells if we want to get the same power. Cells of this type are made of silicon crystals. Its efficiency is about 14% -16%.
Monocrystalline or polycrystalline panels
+ higher efficiency 15-19% + smaller installation surface installation
area + higher temperature
resistance temperature resistance and durability + longer
warranty period – more expensive
+ cheaper to install
and faster payback + good efficiency 14-16% – larger installation
area installation area
Monocrystalline and polycrystalline: differences
Monocrystalline cells are definitely a better option than polycrystalline ones. Its advanced and more modern structure means that (as already mentioned above) we can install a smaller number and have a better proportion of energy produced in the area. Sure there are advantages and disadvantages to both systems. For example, a photovoltaic based on polycrystalline cells will be significantly cheaper. In the final evaluation, however, energy efficiency will be the most important. In this field, monocrystalline cells gain a decisive advantage.
Stilo Energy: what panels do we use?
We are fully aware that it is the quality of the selected components that will determine the overall performance of the entire facility. The better a home power plant works, the faster it will pay for itself.
At Stilo Energy, we focus primarily on monocrystalline cells. They guarantee the proper functioning of the system, even in not very sunny weather. And as for the warranty, we give 25 years for the effectiveness of the modules we deliver. In practice, this means that after this period, the efficiency of your work will not be less than 80% of the original power. It should also be noted that they do not require maintenance and are almost indestructible.
Other types of solar panels:
– CIGS cell panels
The name of these cells comes from the elements that were used in their production: copper, indium, gallium and selenium. Although their name sounds very technical, they are significantly inferior to polycrystalline cells, not to mention monocrystalline ones. Its efficiency is 12% to 14%.
– CdTe panels
We will recognize them by their characteristic red color. Composed primarily of cadmium telluride, which is a semiconductor. The efficiency of the CdTe modules ranges from 10-12%.
– Amorphous silicone panels
The weakest of the solar panels of the first type are amorphous. Manufactured from amorphous (non-crystalline) silicon, they only achieve 6-10% efficiency and are also blue in color.
Important: what else do I need to know?
The installation properly is very important in the context of the performance of the panels , which must be preceded by robust calculations and thorough preparation of the installation design. All factors must be taken into account, including the distribution of sunlight at different times of the day and year, taking into account the directions of the world and even air access. After all, the system must be constantly ventilated. But we will learn about this and many other things before making the final installation decision. After all, even the best investment must be well thought out.