What are solar panels with heterojunction technology (HJT)?

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As part of our continual quest for renewable energy, many people opt to use solar power as a sustainable energy source. Over the years, solar panels have improved in effectiveness and cost. Currently receiving a lot of interest is a new technique called HJT (Heterojunction).

Traditional silicon solar panels and cutting-edge production methods are combined to create HJT solar panels. Performance and energy output are improved by this combination. We will now give you a comprehensive overview of this cutting-edge technology.

Currently receiving a lot of interest is a new technique called HJT (Heterojunction).

The HJT solar panels are what?

Three layers of photovoltaic components comprise the HJT solar panel. Amorphous "thin-film" silicon and crystalline silicon are the two types of technology used in the panels. In order to produce power, several technologies combine.

Three main components make up the majority of HJT solar panels: indium tin oxide (ITO), amorphous silicon (a-Si), and crystalline silicon (c-Si).

Prior to sunlight reaching the crystalline layer, the first layer, which is formed of amorphous silicon, absorbs it. Moreover, it collects any light that reflects from the layers beneath. The intermediate layer, which is composed of a single crystal of silicon, is responsible for converting the majority of solar energy into electrical energy.

Located behind the crystalline silicon, the final layer is a further layer of amorphous thin-film silicon. Any photons that were able to travel through the first two levels are caught in this layer.

For improving performance, HJT solar panels' amorphous silicon layer is crucial. Defects and electron recombination, two problems that ordinary solar panels frequently encounter, are lessened as a result. Acting as a passivation layer does this. In addition, the crystalline silicon layer aids in the effective transfer of charges, making it simpler for electrons to flow about the battery's internal structure.

What makes HJT solar panels superior?

1. High conversion efficiency: A homojunction cell, or PN junction, is a homojunction cell type, and PERC technology uses one of them. Contrary to conventional crystalline silicon solar cells using PERC technology, HJT solar panels use a distinct technology. A HJT is a semiconductor junction constructed of two unique materials.

Although the HJT cell operates similarly to conventional solar cells, it is more effective at converting sunlight into power thanks to a thin coating of amorphous silicon.PERC efficiency averages are currently around 22% for various PV manufacturers, and HJT cell efficiency averages are up to 25%.

In addition, HJT solar cells are made to be more than 93% module bifunctional, which means they can produce power from both sides of the module. An industrial bifacial HJT solar cell with a 24.1% efficiency, for instance, was created by the Swiss company Ecosolifer.

What makes HJT solar panels superior?

2. Low temperature coefficient: When compared to conventional crystalline silicon cells, HJT cells used in thin-film solar energy have a lower temperature coefficient. When the temperature is below 200 °C, HJT cells have an efficiency of over 23%.

They also have a low temperature coefficient of -0.2%/K, which boosts the efficiency and output of solar systems.

By virtue of their ability to function effectively in hot conditions, HJT solar panels may generate more energy in hotter regions. This enables the large-scale power generation of electricity using these high-performance cells.

3. Fewer production stages: When compared to conventional solar panels made with PERC technology, HJT solar panels go through fewer stages of the manufacturing process, which facilitates a smoother production process. HJT solar panels only need to go through 8 stages in order to produce a solar photovoltaic module, whereas PERC technology needs to go through about 13 steps. As a result, it is becoming more economically feasible, which is optimistic for the future of solar energy. This is because the price of the required equipment is continuing to drop.

Long lifespan: HJT solar panels are renowned for their durability, which means they last longer and require less maintenance, resulting in cheaper expenses

4. Long lifespan: HJT solar panels are renowned for their durability, which means they last longer and require less maintenance, resulting in cheaper expenses. Typically, the lifespan of solar panels is 25 years. HJT solar panels, on the other hand, can last up to 30 years in typical usage.

This is so that the PID effect won't manifest since the amorphous silicon layer serves as a protective barrier, slowing degradation and preventing it. Consequently, HJT battery life is increased.

Solar modules that are distinctive, excellent, and reasonably priced are Maysun Solar's top priorities for European clients. The product includes a number of different technologies, including PERC, IBC, shingling, double-sided, half-cut, and more. Please click the link below for more information about Maysun Solar's technology.

Which way is HJT technology evolving

Which way is HJT technology evolving?

PERC technology is currently the most well-liked and attractive solar cell technology available. The production line may be upgraded by simply adding new equipment, making this the easiest solution. However, producing HJT solar panels necessitates investing in a whole separate set of manufacturing tools.

Regarding the development of solar cells, HJT solar panels are far more effective and sophisticated than solar panels using PERC technology. HJT solar panels' excellent power generation efficiency has attracted the attention of cell suppliers and manufacturers. Customers' preferences, which will be influenced by the future market, are crucial to the growth of HJT solar panels.

By enhancing efficiency and boosting energy production, HJT (Heterojunction) technology is transforming the solar business. In order to get beyond the constraints of conventional solar panels, HJT solar panels mix layers of amorphous silicon and crystalline silicon. Because of this, solar energy can be used in a variety of ways.

From 2008 to the present, Maysun Solar has been manufacturing superior solar panels. With characteristics like shingled, full black, double glass, etc., we provide a range of solar panels. Maysun will also start making HJT solar panels soon in addition to the rest. These elegant, high-performing panels may easily blend in with any building thanks to their exceptional performance.

Offices and warehouses for Maysun Solar have been established in numerous nations. Exceptional installers with whom they have long-term relationships. Please don't hesitate to get in touch with us if you have any queries about the most recent solar panel quotes or anything else related to PV.