JA SOLAR Panels for Home and Business Use
In the first half of 2025 alone, the company's R&D investment reached 1.388 billion yuan, representing 5.81% of its operating income. By the end of June 2025, the company had a total of 2,072 valid patents, including 1,109 invention patents, forming a virtuous innovation cycle based on "input, output, and transformation."
Thanks to its strong R&D capabilities, JA Solar has achieved major breakthroughs in several core technologies, becoming a model for patent transformation:
TOPCon technology continues to lead the way: Through technological innovations such as front-side low-doped boron diffusion technology, back-side in situ poly technology, and advanced printing technology, while leveraging the high-voltage potential of TOPCon cells, the conversion efficiency of TOPCon modules has increased to 25.5%, and the power output has increased to 700W+.
Frequent upgrades to the BC platform: JA Solar was the first in the industry to propose the microgrid concept and develop patents, eventually launching its "crystal chain" technology, also known as microgrid technology, which can increase module power by more than 10W and efficiency by more than 25%.
