Hanergy Thin Film’s heterojunction cell verified at record 24.23% conversion efficiency

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Hanergy Thin Film said that testing body, Japan Electrical Safety & Environment Technology Laboratories (JET) had verified the champion cell, which was produced on a large-area 156mm x 156mm wafer.

Hanergy Thin Film Power Group has claimed a new conversion efficiency record for an N-type monocrystalline heterojunction solar cell with a conversion efficiency of 24.23%.

Hanergy Thin Film said that testing body, Japan Electrical Safety & Environment Technology Laboratories (JET) had verified the champion cell, which was produced on a large-area 156mm x 156mm wafer. 

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The company also claimed that its heterojunction cell technology had achieved an absolute increase of 1% in the last two years. 

However, the company did not provide any basic details regarding the processing technology and device architecture that led to the record efficiencies.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our fourth PV CellTech conference dedicated to solar manufacturing in the USA. From polysilicon, wafers, ingots, cells and modules, to critical component suppliers including glass and frames, the event connects every stage of the value chain under one roof. PV CellTech USA also brings together investors, innovators, manufacturers and industry stakeholders to collaborate and strengthen domestic solar manufacturing across the United States.

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