TOPCon technology is widely regarded as the next phase of mainstream solar cell manufacturing, offering higher efficiency potential and improved long-term performance.

Jupiter International on Thursday said it has expanded its solar cell manufacturing capacity at Baddi campus in Himachal Pradesh from 2 GW to 3.25 GW by investing ₹550 crore.

The Kolkata-based company has inaugurated its Unit IV at its Baddi manufacturing campus, adding 1.25 GW of TOPCon (Tunnel Oxide Passivated Contact) solar cell manufacturing capacity.

The company has invested ₹550 crore in setting up this unit, which marks a significant technology step-up for it, strengthening its ability to deliver next-generation, high-efficiency solar cells at scale as the market increasingly shifts toward higher efficiency benchmarks and performance-led procurement, according to a release.

TOPCon technology is widely regarded as the next phase of mainstream solar cell manufacturing, offering higher efficiency potential and improved long-term performance. “With Unit IV, Jupiter accelerates its transition from scaling capacity to scaling advanced manufacturing capabilities,” the company said.

“Commencement of production at Unit IV baddi will be a defining step in Jupiter’s technology journey. By bringing 1.25 GW of TOPCon capacity into production, we are scaling next-generation cell technology that raises the bar on efficiency and long-term performance. We are doing this with a clear focus on manufacturing excellence, sustainability consciousness, and high-skilled job creation,” said Dhruv Sharma, Chief Executive Officer, Jupiter International Limited.

“It provides a technology platform on which Jupiter is scaling up to build a 3 GW TopCon ++ performance fab to be commissioned in Nagpur at the end of the year,” Sharma added.

Published on June 25, 2026