In our continued search for renewable energy, a lot of individuals opt to use solar power as a sustainable energy source. Over time, solar panels have gotten more effective and inexpensive. A new technology called HJT (Heterojunction) is getting a lot of interest.
HJT solar panels are a hybrid of modern production processes and conventional silicon solar panels. Better performance and energy output result from this combo. We will now give you a thorough introduction to this cutting-edge technology.
HJT solar panels: what are they?
Three layers of photovoltaic materials make up the HJT solar panel. Both crystalline silicon and amorphous "thin-film" silicon are used in the panels. To create electricity, several technologies combine.
Crystalline silicon (c-Si), amorphous silicon (a-Si), and indium tin oxide (ITO) are the main components of HJT solar panels.
Before sunlight reaches the crystalline layer, it is captured by the first layer of amorphous silicon. Any light that reflects off the layers below is likewise captured. The primary function of the intermediate layer, which is constructed of single-crystal silicon, is to convert the majority of sunlight into energy.
Behind the crystalline silicon is the final layer, which is another amorphous thin-film silicon layer. Any photons that made it through the previous two layers are caught in this layer.
Performance is improved by the layer of amorphous silicon in HJT solar panels. Defects and electron recombination, which are frequent problems with conventional solar panels, are reduced. By serving as a passivation layer, this is accomplished. Additionally, the crystalline silicon layer aids in the effective transfer of charges, which facilitates the movement of electrons inside the battery's structure.
Why go for solar cells that use HJT technology?
1. High conversion efficiency: The homojunction cell type used in PERC technology uses crystalline silicon for the PN junction. Compared to conventional crystalline silicon solar cells using PERC technology, HJT solar panels are unique. HJT is a junction composed of two unique semiconductor substances.
It functions similarly to conventional solar cells, however the HJT cell is more effective at converting sunlight into power thanks to a thin coating of amorphous silicon.Currently, the average PERC efficiency of various PV manufacturers is around 22%, and the average efficiency of HJT cells is up to 25%.
In addition, HJT solar cells are made to be more than 93% module bifacially active, which means they may produce power from either side of the module. For instance, the Swiss company Ecosolifer has created a commercial bifacial HJT solar cell with a 24.1% efficiency.
2. Low temperature coefficient: When compared to conventional crystalline silicon cells, thin-film solar energy employing HJT cells has a lower temperature coefficient. At temperatures below 200 °C, HJT cells may produce power with an efficiency of about 23%.
Additionally, they have a low temperature coefficient of -0.2%/K, which boosts the efficiency and output of solar systems while lowering their cost.
This indicates that HJT solar panels may function effectively even in warm environments, enabling them to generate more energy in hotter environments. As a result, large-scale power generation using these high-performance cells is made practical.
3. Fewer production steps: HJT solar panels are created with fewer process stages than conventional solar panels made with PERC technology, which facilitates a smoother production process. HJT solar panels require only 8 procedures for the production of solar photovoltaic modules as opposed to the roughly 13 processes needed by PERC technology. As a result, it is becoming more financially practical, which is positive for the development of solar energy. This is because the price of the required equipment is continuing to drop.
4. Long service life: HJT solar panels are renowned for their toughness, which means they last longer and require less upkeep, which lowers expenses. The typical lifespan of solar panels is 25 years. However, under normal circumstances, HJT solar panels can survive up to 30 years.
This is due to the protective barrier function of the amorphous silicon layer, which slows degradation and prevents the emergence of the PID effect. HJT batteries have a longer life as a result.
Maysun Solar is committed to providing distinctive, excellent, and reasonably priced solar modules to customers in Europe. The product uses a number of different technologies, including PERC, IBC, shingling, double-sided, half-cut, and more. Please click the link to learn more about Maysun Solar's technology.
What is the HJT technology's development trend?
The market's most well-liked and desirable solar cell technology is PERC technology. It is regarded as the least complicated option because updating the manufacturing line just necessitates the addition of new machinery. The creation of HJT solar panels, however, necessitates the acquisition of an entirely other set of production tools.
When it comes to solar cell development, HJT solar panels are far more effective and sophisticated than solar panels using PERC technology. Because of the excellent power generation efficiency of HJT solar panels, cell makers and suppliers are becoming more and more interested in them. The future market will establish client preferences, which will be a major factor in the growth of HJT solar panels.
The solar business is undergoing a revolution because to HJT (Heterojunction) technology, which increases energy output while also improving efficiency. To get beyond the drawbacks of conventional solar panels, HJT solar panels blend amorphous and crystalline silicon layers. This makes a variety of solar energy uses possible.
Since 2008, Maysun Solar has been manufacturing superior solar panels. We provide a range of solar panels with various features, such as double glass, full black, and shingled. In addition, Maysun will shortly start making HJT solar panels. These panels are quite effective and have a modern appearance that fits nicely with any architecture.
In numerous nations, Maysun Solar has established warehouses and offices. Additionally, they have established enduring relationships with top installers. Please get in touch with us if you have any inquiries about the most recent solar panel prices or anything else PV-related.