Chinese solar panel manufacturer Longi has achieved an energy conversion efficiency of 27.30% for an HBC solar cell. The German Institute for Solar Energy Research (ISFH) has confirmed the result.
The new efficiency record beats the previous world record of 27.09%, which was also set by Longi at the end of last year.
At the time, Longi said the result was made possible by a new laser graphics process that costs less than conventional, expensive photolithography processes.
“This replacement has effectively reduced the cost of the BC cell,” the company said in a statement, noting that the HBC architecture also minimizes reliance on traditional indium-based transparent conductive oxide (ITO). “This breakthrough has stimulated the commercialization of HBC solar cells, with independent intellectual property and cost-effectiveness.”
In early November, Longi announced an energy conversion efficiency of 33.9% for a perovskite-silicon tandem solar cell.
It claimed the world’s highest efficiency for silicon cells in November 2022, with an efficiency of 26.81% for an unspecified heterojunction solar cell.
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