In the world of photovoltaics, technological innovation is the key, be it in the design of new materials, solar cells or the development of new panels with the aim of maximizing their performance and reducing the cost of energy.
When we talk about the efficiency of solar panels, we mean the amount of light that is converted into electricity. The search for efficiency is what has led to the development of new technologies that make it possible to generate even more electricity with the same amount of light obtained by the panels.
Among the technologies that are gaining ground in the sector and contribute to improving the performance and low level of degradation of solar panels is the heterojunction, Also known as Hjt.
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What is Heterojunction Technology (HJT)?
The heterojunction of the solar cell means that it is not composed solely of a homogeneous material, as is the case with the monocrystalline. In contrast, the HJT solar cell is composed of a layer of thin monocrystalline silicon surrounded by layers of amorphous silicon ultrafine. By using these two technologies together, it is possible to produce more energy versus other technologies that work alone.
By having amorphous silicon on the front and back sides of the crystalline silicon layer, HJT cells can absorb additional photons. In addition, the HJT modules are mainly composed of N-type cells, this allows to significantly reduce the effect of "Light Induced Degradation" (LID) given the absence of boron-oxygen complexes.
HJT panels are very useful on all types of surfaces. But they can be used even more in those places that have slopes and clear floors.
What is Heterojunction Technology (HJT)?
The heterojunction of the solar cell means that it is not composed solely of a homogeneous material, as is the case with the monocrystalline. In contrast, the HJT solar cell is composed of a layer of thin monocrystalline silicon surrounded by layers of amorphous silicon ultrafine. By using these two technologies together, it is possible to produce more energy versus other technologies that work alone.
By having amorphous silicon on the front and back sides of the crystalline silicon layer, HJT cells can absorb additional photons. In addition, the HJT modules are mainly composed of N-type cells, this allows to significantly reduce the effect of "Light Induced Degradation" (LID) given the absence of boron-oxygen complexes.
HJT panels are very useful on all types of surfaces. But they can be used even more in those places that have slopes and clear floors.
HJT vs. PERC cells
Although HJT cells are gaining place in the photovoltaic market, PERC (Passivated Emitter Rear Cell) technology is the one with the greatest presence.
La PERC technology it is implemented in the back layer of the silicon cell. It is responsible for reflecting the electrons from the back to the front of the cell, where the photoelectric effect is actually generated, that is, where electricity is actually produced.
While, as we have mentioned before, there are two different technologies that are combined in the heterojunction solar cells. As if it were a kind of sandwich, a crystalline silicon cell is sandwiched between two layers of thin-film amorphous silicon. In this way, by using the two technologies together, low irradiance or soft light is better utilized.
Advantages of HJT technology
- Bifaciality: It captures light from the front and back, increasing electrical energy production by up to 20% more, compared to crystalline technology.
- Resistance: it can exceed a 30-year life cycle, compared to 25 years for traditional panels.
- Adaptability: good thermal behavior, can withstand extreme weather conditions while maintaining a good level of production.
Lion Recom Panels
La Recom Lion Series It is based on Heterojunction Technology (HJT). The HJT solar cell is composed of a thin monocrystalline silicon wafer surrounded by ultra-thin layers of amorphous silicon. HJT technology guarantees high performance and low degradation of the photovoltaic module, substantially improving results and performance over time.
The Lion line achieves more than 700 Wp of power, 7% more compared to standard PV modules. In addition, they have a bifaciality coefficient that reaches up to 90% (while traditional modules reach 70%) and up to 20% more energy efficient in low light conditions, in the morning and at night, and on cloudy days.
In addition, thanks to the N-type technology, the energy losses are significantly reduced and there is no PID or LID effect, resulting in the lowest LCOE.
photovoltaic modules Leo 390 Wp y 475 Wp They are suitable for installations on different surfaces, whether on the ground or on the roof, large or small. These panels offer a performance greater than 91,25% after 30 years. Additionally, Recom provides a 30-year product and performance guarantee.
Include efficient modules in your installation
At Pebblex we distribute high-quality Tier 1 photovoltaic modules from the Recom brand and offer solar panels for companies and industry with turnkey projects so you don't have to worry about a thing.
