24.85% Efficiency For Hanergy HJT Cell

Germany’s Institute For Solar Energy Research In Hamelin Certifies Hanergy’s 24.85% Conversion Efficiency For Silicon Heterojunction 6-Inch Lab Cell
Hanergy’s 24.85% cell power conversion efficiency for HJT is an improvement over 24.23% reported in January 2019. The company claims it has now become the ‘new world champion of 6-inch silicon HJT’ replacing the original world record of 24.5% held by Japan’s Kaneka (Photo Credit: Hanergy)
Hanergy’s 24.85% cell power conversion efficiency for HJT is an improvement over 24.23% reported in January 2019. The company claims it has now become the ‘new world champion of 6-inch silicon HJT’ replacing the original world record of 24.5% held by Japan’s Kaneka (Photo Credit: Hanergy)
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  • Hanergy and Chengdu Zhufeng Yongming Technology Company claim 24.85% power conversion efficiency for heterojunction technology
  • It used LONGi's N-type silicon wafer as the base for the HJT module
  • The Institute for Solar Energy Research in Hamelin in Germany has certified its HJT 6-inch lab cell as the 'world's most efficient', claims Hanergy
  • Hanergy claims the technology was developed with low-cost production technology

Chinese thin film solar PV manufacturer, Hanergy Thin Film Power Group has announced 24.85% power conversion efficiency for its silicon heterojunction technology, along with Chengdu Zhufeng Yongming Technology Company. The company says German Institute for Solar Energy Research in Hamelin (ISFH) has certified the record as the 'world's most efficient' 6-inch lab cell.

With this, the company says it has beaten its own previous record of 24.23% achieved in January 2019 and also exceeded the original world record of 24.5% held by Japan's Kaneka, 'becoming the new world champion of 6-inch silicon SHJ technology.' (see 24.23% SHJ Conversion Efficiency From Hanergy). The term battery used in the English PR of Hanergy refers to solar modules, SHJ to Heterojunction Technology (HJT).

It used LONGi's high-quality N-type silicon wafer as the base for the HJT cell with amorphous silicon and silicon carbon alloy thin-film for the passivation layer, and microcrystalline silicon oxide material for the window layer. The cell uses low-cost ITO film and screen-printed electrodes which it says is easily available in the market and saves on production cost.

Calling HJT a competitive future solar technology Hanergy's Senior Vice President Zhang Bin said, "More importantly, the technology was developed with low-cost production technology as well as mass production equipment, contrary to many other record setting technologies that were developed in a laboratory setting. This means that Hanergy's SHJ technology can be used directly for mass production."

Correction: An earlier version of this article referred to modules, this must be cells, wich was confirmed with Hanergy's PR agency.

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