I. What are HJT Solar Panels?

HJT solar panels, also known as heterojunction solar panels, are a type of photovoltaic technology that combines multiple layers of different semiconductor materials to convert sunlight into electricity. The term "heterojunction" refers to the junction formed by the interface between these different materials, typically a combination of amorphous silicon (a-Si) and crystalline silicon (c-Si).

Unlike traditional solar panels that use a single layer of semiconductor material, HJT solar panels utilize a more complex structure. The intricate construction and optimized material composition of HJT solar panels make them an attractive choice for harnessing solar energy efficiently and effectively.

II. Advantages of HJT Solar Panels

High Efficiency: HJT solar panels have a conversion efficiency of 26.07% for monoracial modules and over 30% for bifacial, making them one of the most efficient solar technologies in the industry.

Good Temperature Coefficient: HJT cells are less affected by changes in temperature, making them great for use in high-temperature locations.

High Bifaciality: HJT cells have a high bifaciality factor of 92%, making them a great choice for utility-scale applications that can take advantage of the albedo resource.

Easy Manufacturing Process: The HJT solar PV module manufacturing process only involves 5-7 steps, and the cost of equipment is constantly being reduced, making it a cost-effective and promising technology for the future of solar energy.

III.HJT Solar Panels vs. TOPcon Solar Panels:

TOPCon and HJT solar panels are two advanced solar technologies that offer high efficiency and reliability. Here are some general features where two solar panels can differ:

HJT panels have higher efficiency and bifaciality but are more complex and expensive to manufacture, and are sensitive to humidity.

TOPCon panels have a simpler manufacturing process, lower cost, and are less sensitive to humidity, but have lower efficiency and bi-facility compared to HJT panels.

IV. Applications of HJT Solar Panels

Building-integrated photovoltaics (BIPV): HJT solar panels are not limited to conventional applications but also have potential in emerging areas of innovation and integration. HJT solar panels can be integrated into building facades, roofs, and windows to generate electricity while also providing architectural design and energy-saving benefits.

Space-constrained applications: HJT solar panels are a good choice for space-constrained applications such as portable solar chargers, off-grid cabins, and small boats, due to their high efficiency and compact size.

Utility-scale solar power plants: HJT solar panels can be used in large utility-scale solar power plants, especially for projects with higher solar irradiance, which increases the efficiency of the HJT panels.

In summary, HJT solar panels have diverse applications across residential, commercial, industrial, utility-scale, off-grid, and emerging sectors. Their high efficiency, superior performance in low light conditions, and potential for integration make them versatile and valuable options for harnessing solar energy. By leveraging HJT technology across these applications, we can accelerate the adoption of renewable energy, reduce carbon emissions, and build a more sustainable and resilient energy infrastructure for the future.

The first year degradation of SUNKEAN HJT solar panels is 1%, annual degradation is -0.25%. Adopt non-destructive cutting process to ensure the smooth cutting surface of the cell, without thermal-affected area, and no loss of current. In addition, HJT high-efficiency components use low-temperature round wire soldering ribbons and low-temperature flux to reduce structural damage to the amorphous silicon layer, and the reliability is equivalent to PERC performance.

The power of HJT modules provided by SUNKEAN can reach up to 720W. If you are looking for suitable modules for your solar project, SUNKEAN's HJT modules will be your best choice. For more details, please contact our sales represent: wendy@sunkean.com