JA Solar and Gold Stone Energy form joint venture to industrialize HBC solar cell technology

Type: Partnership · Technology: Solar · Country: China · Announced: 2026-05-25

JA Solar, a Chinese photovoltaic technology manufacturer, and Gold Stone Energy, a Chinese photovoltaic equipment supplier, established a joint venture to industrialize hybrid back-contact (HBC) solar cell technology. The partnership aims to produce HBC cells by retrofitting existing manufacturing capacity, with Golden Solar New Energy Technology licensing proprietary HBC technology to the joint venture. The initiative follows a prior 4 GW HBC upgrade and retrofitting project between the two companies. The joint venture will leverage JA Solar's Yiwu unit to manufacture HBC cells, targeting improved efficiency and power density in solar modules. This collaboration underscores the intensifying competition among Chinese manufacturers to commercialize advanced solar cell architectures post-TOPCon deployment.

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