Premier Energies Limited has unveiled India’s first Zero Busbar (0BB) TOPCon solar cell at Intersolar Gandhinagar, marking a significant advancement in domestic solar cell technology.
The Zero Busbar design represents a major shift from conventional 10BB and 16BB architectures. Instead of relying on thick silver busbars, the new structure uses a dense matrix of ultra-fine silver lines to collect electrical current. The approach reduces silver consumption, minimises shading losses and increases overall power output compared to traditional designs.
According to the company, the 0BB architecture also improves mechanical flexibility, reduces interconnection stress and enhances resistance to micro-cracks—factors that contribute to stronger long-term reliability and improved performance in India’s high-temperature and high-irradiance conditions.
Sudhir Reddy, Chief Strategy Officer at Premier Energies, described the innovation as a redesign of solar cell engineering rather than an incremental upgrade. He said the reduction in silver usage combined with enhanced efficiency and durability strengthens both performance economics and sustainability in solar manufacturing.
Chandra Mauli Kumar, Chief Production Officer, noted that scaling the 0BB technology required significant manufacturing precision and process innovation. He added that the company’s integrated production capabilities support improved crack tolerance, reduced stress during interconnection and consistent performance in extreme temperatures.
The launch reinforces Premier Energies’ position in next-generation solar technologies and highlights ongoing efforts to advance high-efficiency solar manufacturing in India.
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 TOPCon solar cell at Intersolar Gandhinagar, reducing silver use while boosting efficiency, durability and long-term solar performance.){kind=link}