Solar panel innovator LONGi recently reached two technology milestones. First, its hybrid interdigitated-back-contact (HIBC) solar cell was certified by the Institute for Solar Energy Research Hamelin (ISFH) in Germany, achieving a photoelectric conversion efficiency of 28.13%. Second, modules using HIBC solar cells have been certified by the U.S. National Laboratory of the Rockies (NLR), with…
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