India’s Gautam Solar expands its solar module production capacity to 1 GW by adding a 500 MW tunnel oxide passivated contact (TOPCon) manufacturing line in Jinchen. The new production line will start in September.
Indian manufacturer Gautam Solar is adding a 500 MW TOPCon module production line, bringing its total panel production capacity to 1 GW. The line will start operating in September.
Gautam Solar acquires a fully automated, n-type TOPCon production line from Jinchen. The supply agreement between the two companies was signed at SNEC, the 16th International Solar Power Generation and Smart Energy Conference and Exhibition.
TOPCon is an advanced solar module production technology. It has a thin layer of tunneling oxide 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 through with minimal recombination losses, while the passivated contacts reduce surface recombination. This technology improves the efficiency of solar modules and reduces panel degradation over time.
N-type TOPCon cells can produce up to 30% more power than traditionally used p-type PERC cells.