Featured in Further upstream – 10-2024

Keeping up with manufacturing trends

Indian PV manufacturers are looking beyond tunnel oxide passivated contact (TOPCon) solar. Back-contact (BC) devices are an enticing prospect but many feel the technology is not mature enough. Uma Gupta considers the cost, yield, and reliability challenges that BC solar has to overcome.

By

Uma Gupta

04 Oct 2024

Vikram Solar is among the manufacturers that are focusing on current technology. Chairman Gyanesh Chaudhary said he expects to see more commercial development in BC solar after 2025. | Photo: Vikram Solar

Most PV manufacturers in India have migrated their module production from passivated emitter rear contact (PERC) to n-type TOPCon technology. TOPCon is now the preferred option for those entering mainstream, large-scale cell production, or expanding production capacity.Even as TOPCon is taking over the Indian solar industry, some observers expect interdigitated back contact (IBC) and other …

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