Indian manufacturer Gautam Solar announced today it is adding a 500 MW TOPCon module production line, bringing its total panel capacity to 1 GW.
The line will start production by September.
Gautam Solar is procuring the fully automated, n-type TOPCon production line from Jinchen. The supply deal between the two companies was signed at SNEC, 16th International Photovoltaic Power Generation and Smart Energy Conference and Exhibition.
TOPCon (tunnel-oxide passivated contact) is a state-of-the-art solar module production technology in which a thin tunneling oxide layer is applied on an n-type silicon substrate, followed by a layer of highly doped polysilicon and passivated contacts. The tunnel oxide layer allows charge carriers to pass while minimizing recombination losses. The passivated contacts reduce surface recombination. Thereby, the technology helps increase the efficiency of the solar modules while reducing panel degradation over time.
n-type TOPCon cells can produce up to 30% more power than conventionally used p-type PERC cells.
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