TOPCon

Aroma Solar has opened a 1.2 GW tunnel oxide passivated contact (TOPCon) module facility in in the northern Indian state of Haryana, using automated production and AI-based quality control.

TCL Zhonghuan has agreed to take majority control of Chinese solar manufacturer DAS Solar, a producer of advanced n-type modules based on tunnel oxide passivated contact (TOPCon) and back-contact (BC) technologies.

Tongwei is partnering with GS-Solar and Golden Solar to develop a large-scale manufacturing facility for hybrid heterojunction back-contact (HBC) solar cells that combine heterojunction passivation, tunneling oxide and polysilicon structures used in TOPCon designs, and the grid-free front-side architecture typical of back-contact technologies.

The US International Trade Commission (ITC) has opened a Section 337 investigation into tunnel oxide passivated contact (TOPCon) solar cells, modules, panels, and related products following a complaint by First Solar, naming 47 entities across 11 countries as respondents.

Rooftop solar company Solarium Green Energy has commissioned a 1 GW solar module manufacturing facility in Ahmedabad, Gujarat, producing large-format G12 modules up to 725 Wp and serving both internal and external customers.

DAS Solar and Hebei University have identified two types of pinholes in TOPCon solar cells: harmful recombinational pinholes, which lack oxygen and cause carrier recombination, and beneficial passivating pinholes, which retain oxygen to enable efficient tunneling while maintaining interface passivation. Their work shows that optimizing oxide layer formation, back-surface polishing, and polycrystalline silicon deposition can increase passivating pinholes, boosting device efficiency and guiding industrial cell design.

Germany-based solar tracker developer Sunoyster Systems has developed a 440 W lightweight solar panel with a tempered glass cover for low-load commercial and industrial roofs.

The Germany-based PV thermal process equipment and technology provider has launched c.Plasma Q Max to process up to 10,000 wafers per hour in high-volume TOPCon solar cell manufacturing lines.

Indian module manufacturer GREW Solar has won a 550 MW repeat supply order from an independent power producer (IPP), with deliveries of tunnel oxide passivated contact (TOPCon) modules scheduled to be completed by March 31, 2026.

The company’s new ASTRO N7 Pro PV modules achieve 2% higher cumulative energy yield over the project lifecycle compared to conventional previous-generation modules, according to Astronergy Head of Global Product Management Baohua He.