Featured in Treasure Islands – 08-2024

A critical junction

Tongwei Solar expects to have more than 100 GW of annual solar cell production capacity in 2024, placing it among the largest of China’s vertically integrated PV manufacturers. pv magazine spoke to Guogiang Xing, chief technology officer of PV business at Tongwei, about the company’s new R&D center in Chengdu, which includes a 1 GW pilot line for upgrades and new products.

By

Mark Hutchins

12 Aug 2024

Tongwei is testing different approaches to cell interconnection at its new R&D center, with the aim of reducing or eliminating silver in solar cells. | Photos: Tongwei Solar

pv magazine: We see much of the PV industry focused on tunnel oxide passivated contact (TOPCon) cell technology this year. Is that Tongwei’s main focus?Guogiang Xing: TOPCon is now the mainstream PV technology and will probably surpass 1 TW of total manufacturing capacity this year. We are expanding rapidly with new TOPCon capacity, adding another …

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