Premier Energies Limited introduced a Zero Busbar (0BB) Tunnel Oxide Passivated Contact (TOPCon) solar cell at Intersolar Gandhinagar on 26 February 2026. The company said that the product represents a shift from conventional 10BB and 16BB solar cell architectures.
According to the company, the Zero Busbar structure replaces thick silver busbars with a dense matrix of ultra-fine silver lines to collect current. The company stated that the revised architecture reduces silver consumption, minimises shading losses and delivers higher power output compared to traditional designs. The 0BB structure enhances mechanical flexibility, lowers cell interconnection stress and improves resistance to micro-cracks. It added that these characteristics enable stronger long-term reliability and improved performance in demanding climatic conditions. The company described the product as India’s first Zero Busbar solar cell.
“Zero Busbar is not an incremental upgrade, it is a redesign of solar cell engineering,” said Sudhir Reddy, Chief Strategy Officer of Premier Energies. “By lowering silver usage while enhancing efficiency and durability, we are strengthening both performance economics and sustainability in solar manufacturing. This achievement has reinforced our leadership in next-generation solar technologies and our commitment to advancing India’s high-efficiency solar manufacturing ecosystem.”
“Scaling 0BB demanded significant manufacturing precision and process innovation. Our integrated capabilities enable us to deliver enhanced crack tolerance, reduced interconnection stress, and consistent performance in extreme temperatures,” said Chandra Mauli Kumar, Chief Production Officer of Premier Energies.
The company said it is undertaking a capital expenditure plan of INR 125 billion over three years. The investment is aimed at more than doubling its solar manufacturing capacity, integrating backwards into ingot and wafer production, and expanding into areas such as inverters, transformers and battery systems.
Premier Energies Limited is a publicly listed integrated solar manufacturer with 30 years of experience in solar manufacturing.
