Jupiter International Limited, a leading Indian solar cell manufacturer, inaugurated Unit IV at its manufacturing campus in Baddi, Himachal Pradesh, on June 26, 2026. The new unit adds 1.25 GW of TOPCon (Tunnel Oxide Passivated Contact) solar cell capacity, marking a significant technological advancement for the company.
Expansion details and technology
The commissioning of Unit IV brings Jupiter International's total installed solar cell manufacturing capacity to nearly 2 GW, following the earlier addition of 1 GW of Mono PERC capacity at its third unit earlier this year. TOPCon technology is widely regarded as the next evolution in mainstream solar cell manufacturing, offering higher conversion efficiencies and enhanced long-term performance.
Testing of machinery and trial production commenced on the inauguration day, paving the way for commercial production in the near future. The expansion comes at a time when the solar industry is increasingly moving toward higher efficiency standards and performance-driven procurement.
CEO statement and future plans
Dhruv Sharma, Chief Executive Officer of Jupiter International Limited, stated: "By bringing 1.25 GW of TOPCon capacity into production, we are scaling next-generation cell technology that raises the benchmark for efficiency and long-term performance. We are doing so with a clear focus on manufacturing excellence, sustainability and high-skilled job creation. This facility also provides the technological foundation for Jupiter’s upcoming 3 GW TOPCon++ performance fab in Nagpur, which is scheduled to be commissioned by the end of the year."
Economic and employment impact
The expansion is expected to deliver significant economic benefits to Himachal Pradesh by creating a growing pipeline of high-skilled green jobs across production, process engineering, automation, quality assurance, maintenance, and EHS functions. These efforts will be supported by structured training and capability-building programmes.
Sustainability and manufacturing approach
The ramp-up of Unit IV has been anchored in a quality-first and sustainability-focused manufacturing approach, supported by rigorous process controls and advanced production systems designed to ensure consistent, high-quality output at scale. With this inauguration, Jupiter International continues to strengthen its contribution to India’s clean energy transition by expanding domestic solar cell manufacturing capabilities and accelerating the adoption of high-efficiency solar technologies.
