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What are the known brands of solar energy panels?

The self-consumption market is in full growth and every day more companies are dedicated to manufacturing solar panels. In this article we tell you which are the biggest manufacturers and which ones we bet on .

What are the known brands of solar energy panels?

Year after year, the rankings of the largest manufacturers of solar panels come to light, based not only on the quality of the products, but rather on the turnover they manage. We are going to tell you what these are, but first, we detail the brands of solar panels with which we work .

The manufacturers of solar panels for which we bet

That is why when deciding with which brands of solar panels , we take into account a series of criteria.

What are these?

  • We bet on companies with a long history and experience that can cover the extended guarantees they offer
  • We make sure that the materials they use are of the highest quality
  • We focus on sustainability :  we work only with manufacturers that minimize the impact of their activity on the environment
  • We pursue innovation : a manufacturer that does not constantly innovate cannot work

In this sense, we are currently betting on 3 leading manufacturers of solar panels worldwide:

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  • J.A. Solar
  • SunPower
  • FuturaSun
  • Long Solar
  • Trina


J.A. Solar


JA Solar is a company of Chinese origin founded in 2005. It has 11 production centers and 27 subsidiaries around the world, offering its products to 33,000 customers globally.

We work with the modules of this manufacturer due to the superior PERC technology, being the brand that has patented this technology. They also offer a 12-year warranty on the product.

The modules used are the monocrystalline ones with 60 photovoltaic cells, those indicated for residential uses.


SunPower is a company in constant innovation, with the goal of being a leader not only on land, but also at sea and in the air, sending its technology into the stratosphere. This and its top quality solar panels, with guarantees of up to 25 years on the product, have determined us to bet on this manufacturer of photovoltaic modules.

In addition, their solid commitment to the environment makes them the leaders in environmental management in the sector.

The American company was founded in 1985 and since then its growth has been continuous. They are considered a top-of-the-range line within the photovoltaic industry.we opt for SunPower’s Performance solar panels , the ones that offer the highest profitability.


FuturaSun is a great European power among solar panel manufacturers. The company has a wide range of types of solar panels, both monocrystalline and polycrystalline, of various powers. They also offer a 15-year warranty on the product and 25 years on the performance of the photovoltaic modules.

The company was born in Italy in 2008 and the rapid growth it experienced meant that today they have customers in 70 countries around the world.

LONGi Solar

Longi Solar is one of the largest manufacturers in the world. The company of Chinese origin offers high-quality modules, making use of cutting-edge technology, betting on monocrystalline plates and PERC technology.

The guarantees that this manufacturer of solar panels are 25 years in production and 10 years in product.


Trina , finally, is also a company of Chinese origin.

It is one of the largest solar panel manufacturers in the world, judging by the number of modules sold.

We have chosen to work with this brand thanks to the high power and quality of its modules.

The guarantee that Trina offers for its modules is 25 years in production and 10 years in product.

Why don’t we collaborate with more manufacturers?

Simple: The in-depth verification work that we do to our suppliers is impossible to carry out with a large number of companies . In addition, each solar panel manufacturer has its peculiarity. To offer the highest quality of self-consumption systems, knowing all the details of each one is essential.

In addition, since we offer our facilities for 20-year rental, we have to ensure that we work with brands that give us a guarantee of operation and quality for that time and more. We are the first interested in working with top quality brands.

The largest manufacturers of solar panels worldwide

When we talk about manufacturers of solar panels , ranking them is not an easy task, since there are several elements to consider: the reliability and effectiveness of the products, the guarantees offered, the coverage they offer and the path of the manufacturers. …

Based on the number of modules provided throughout the year 2020, today the largest manufacturers of solar panels worldwide are :

  • Sun Jinko
  • LONGi Solar
  • Sun Trinity
  • J.A. Solar
  • Canadian Solar
  • Hanwha Q Cells
  • Risen Energy
  • First Solar
  • Chint (Astronergy)
  • Suntech

However, quantity is not always a guarantee of quality . That is why at Otovo we thoroughly analyze each manufacturer before starting a collaboration.
In addition, it must be taken into account that the largest number of photovoltaic panels are used in industrial use or in solar farms , so if we only talk about residential use, it is possible that the ranking changes. This is due to the fact that the modules used in orchards or in industries are of a lower quality than those used in domestic self-consumption.

Tier 1 Solar Panel Manufacturers

When we talk about manufacturers of solar panels , ranking them is not an easy task, since there are several elements to consider: the reliability and effectiveness of the products, the guarantees offered, the coverage they offer and the path of the manufacturers. …
Based on the number of modules provided throughout the year 2020, today the largest manufacturers of solar panels worldwide are :


Manufacturers solar panels Tier 1
1. Longi 13. Astronergy 25. Vietnam Sunergy
2. Jinko 14. ZNShine 26. Hendigan
3.JA Solar 15. Jolywood 27. Street
4. Canadian Solar 16. Sunpower 28. Recom
5. Risen 17. Jinergy 29.Hyundai
6.Q-Cells 18. Jetion 30. Leapton
7. Trina 19.LG 31. S-Energy
8. First Solar 20. Waree 32. Goldi Solar
9. Talesun 21. Phono 33. Heliene
10. Eging 22. Neo Solar 34. Sharp
11. Seraphim 23. HT-SAAE 35. Swelect
12. Suntech 24. Adani

Manufacturers of solar panels in Spain

Spain is a country with impressive photovoltaic production potential, thanks to all the hours of sunshine we receive. However, the penetration of this energy source is much lower than that of countries such as Germany or the Netherlands, where the production capacity is lower. We have a long journey ahead of us.

One piece of positive news is that we already have an increasing number of solar panel manufacturers in Spain . And although they do not reach the international tops, it is a great step for the development of this industry at a national level.

Some of the manufacturers of solar panels in Spain are:

Spanish manufacturers
Sitecno Abora Energy
SolarAir EnergyStone Aters
Sunconnection Worldwide Eastech Solar
Tamesol Ennova Energy
VidurSolar Scelco
Zytech Solar Eurener
Iberian Solar Exiom Solution
Nousol New Energies Grealtec
Recovery Heliene
8.33 Solar

How are photovoltaic solar panels made?

Finally, it is interesting to know what exactly the manufacture of solar panels entails , in order to understand the fundamental part of the activity of these companies.

The manufacturing process of photovoltaic solar panels begins with the exploitation and transformation of silicon. Silicon is the main material of all those that make up a module. The first step is to melt the silicon, followed by its refinement. Thanks to the smelting and refining processes, it reaches a purity that is close to 100%.

When the silicon is still in a liquid state, it is placed between 2 layers: one of boron and the other of phosphorus. This allows the electrodes to circulate. In this last layer the conductive elements are also placed, which are then connected to the boron layer. This connection is what ultimately produces the energy.

Once the 3 layers are connected, the photovoltaic cell is ready. The next step is to place the appropriate number of cells next to each other, based on the desired power. For example, in the case of photovoltaic modules for residential use, these contain 60 cells that are arranged in 10 rows of 6.

The cells are placed on top of an aluminum surface and fixed with solders. Finally, a layer of synthetic resin is applied and they are encapsulated in a plastic or aluminum frame. And to ensure proper operation, all the air is extracted.

Throughout the manufacturing process, tests are carried out to determine the correct operation of each element, before reaching the final assembly.

In conclusion, the world of solar panel manufacturers is big, the options are very diverse. This is why it is essential to know what the quality of a solar panel means and which companies can guarantee assistance throughout the entire useful life of a photovoltaic system. In addition, we must not forget social responsibility and environmental management. The companies dedicated to solar energy have a main mission: to reduce the emission of carbon dioxide panel by panel, from its manufacture to the recycling of the modules.


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