Indian scientists have produced high-purity polysilicon ingots from recycled solar cells using “spark plasma sintering” (SPS), and claim they may achieve a purity level comparable to commercially available products.
Bengaluru-based Hind High Vacuum (HHV) has designed and built a directional solidification (DSS) furnace to produce polycrystalline silicon ingots in the solar industry.
Germany’s Fraunhofer ISE is applying its FlexTrail-printing technology to the direct metallization of silicon heterojunction solar cells. It said the technique reduces the use of silver, while maintaining high efficiency levels.
Bengaluru-based Emmvee Photovoltaic has a 1.25 GW module manufacturing facility that can produce polycrystalline and mono PERC solar panels, with the ability to upgrade to TOPCon. By the end of 2023, it will raise its module capacity to 3 GW by adding new units, including 1.5 GW of wafer-to-module capacity. Suhas Donthi, director-sales and operations, spoke to pv magazine about current demand for Indian manufacturers and what’s in store.
Scientists in Germany have developed a new process for deposition of silicon dioxide layers during cell production. Without the need for high pressure, flammable gases, or vacuum conditions, the process could lead to cost reductions for cell manufacturers, provided it can be developed and applied in a large-scale production setting.
Bids are invited from Indian manufacturers to supply four-/five-busbar multi-crystalline silicon solar cells rated for 4.5W peak output. Bidding closes on March 15.
India’s Ministry of New and Renewable Energy is funding the research to develop high-efficiency crystalline silicon solar cells, including those with passivated emitter and rear contact structure, and perovskites.
Manufacturers have until December 22 to bid for supplying 200,000 four-/five-busbar solar cells rated for a power output of 4.5 watts.
Bids are invited from Indian manufacturers to supply 5000 mono PERC silicon solar cells. The deadline for bid submission is December 23.
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