Chinese solar panel manufacturer Trina Solar has set a new world record for the conversion efficiency of its large-surface-area, n-type fully passivated heterojunction (HJT) solar modules.

According to the company, the modules achieved a record-breaking efficiency of 25,44% in laboratory tests, as certified by Germany’s solar research institute Fraunhofer CalLab.

HJT technology, which involves the use of passivation to address defects on the surface of solar cells, has emerged as a strong contender for next-generation solar advancements. In addition to setting a new record for HJT technology, the milestone also represents a breakthrough for the photo-electric conversion efficiency of single-crystalline silicon solar cell modules, Trina Solar says.

Last month, Trina Solar announced a record-breaking solar cell efficiency of 27,08% with its n-type total passivation cell. Verified by the Institute for Solar Energy Research in Hamelin, Germany, the milestone was achieved on a large-area, n-type phosphorus-doped, Cz silicon wafer measuring 210 x 105 mm². The company credits the accomplishment to innovative thin-film passivating contact, advanced light trapping and fine-line printing technologies.

“These achievements underscore Trina Solar’s commitment to advancing the efficiency and competitiveness of solar technology,” the company states.