What are heterojunction solar panels?

Heterojunction solar panels are assembled similarly to standard homojunction modules, but the singularity of this technology lies in the solar cell itself. To understand the technology, we provide you with a deep analysis of the materials, structure, manufacturing, and classification of the HJT panels.

Why are monofacial HJT solar cells better than heterojunction solar panels?

This three-step process is the reason why monofacial HJT solar cells have achieved solar efficiencies of up to 26.7%. Heterojunction technology is based on traditional c-Si panels, improving the recombination process and other major flaws.

Who makes HJT solar panels?

The solar industry produced 5GW in heterojunction solar panels in 2019, making HJT technology hold around 5% of the retail market, with the largest manufacturers being Tesla in the US and Panasonic in Malaya and Japan, but this is expected to grow in the future.

What is the difference between bifacial and heterojunction solar panels?

The essential distinction is that heterojunction panels can be developed for monofacial or bifacial use whereas bifacial panels may integrate several base technologies other than HJT. The following table compares the essential features of bifacial and heterojunction (HJT) solar PV modules: Absorb light from both the front and back sides.

What are the pros and cons of heterojunction solar technology?

Applications of heterojunction solar technology in utility-scale settings can offer efficiency from 25 to 30% efficiency. However, the pros of HJT come with cons too which are listed below: Outperform standard solar cells by converting more sunlight into electricity.

What is heterojunction technology (HJT)?

Heterojunction technology (HJT) is a N-type bifacial solar cell technology, by leveraging N-type monocrystalline silicon as a substratum and depositing silicon-based thin films with different characteristics and transparent conductive films on the front and rear surfaces respectively.