Alpex Solar to Expand Solar Cell Manufacturing Capacity to 2.2 GW with G12R TOPCon Technology
Alpex Solar has announced a strategic upgrade in its manufacturing roadmap, shifting from phased PERC to a 2.2 GW TOPCon solar cell production line to align with global efficiency standards and its 3.6 GW module capacity. While 1.4 GW would be operational in Q1 FY26-27, the balance 800 MW will be operationalised within another six months.
October 29, 2025. By Mrinmoy Dey
The company will now focus on the production of high-efficiency G12R generation TOPCon cells at its facility in Kosi Kotwan, the company said in a statement, further adding that this additional project cost of approximately INR 136 crore, due to the upgraded TOPCon technology and enhanced capacity, will be met entirely through internal accruals.
This new facility is designed to secure long-term profitability and avoid the disruptive costs of a future upgrade. The company will be among the nation's first to produce these high-efficiency G12R cells, with the expansion executed in two phases: a 1.4 GW phase becoming operational in Q1 of FY26-27, followed by the remaining 800 MW within six months.
This strategic move will ensure Alpex Solar’s product offering meets accelerating global demand and aligns its output with its 3.6 GW module capacity and the upcoming ALMM List II mandate.
Ashwani Sehgal, Managing Director of Alpex Solar, commented, “The solar industry is evolving at an unprecedented pace, with TOPCon technology rapidly becoming the new global standard. Our decision to pivot directly to 2.2 GW of G12R TOPCon cell production is a bold, forward-looking strategy that reflects our commitment to innovation and market leadership.”
He further added, “This move insulates us from future upgrade costs and downtime, positioning Alpex as one of the first manufacturers in India to produce these high-efficiency G12R cells. This significant step solidifies our foundation for robust, long-term profitability and sustainable growth.”
By adopting a direct-to-TOPCon strategy, Alpex Solar avoids the costly and disruptive need to later shut down the factory for a PERC-to-TOPCon upgrade. This pre-emptive action mitigates potential future revenue loss and factory downtime, safeguarding profitability and ensuring continuous operation.
Despite the substantial technology change, the project timeline remains largely unchanged, with trial production of 1.4 GW expected to commence in Q1 FY26-27 and the entire capacity of 2.2 GW TOPcon solar cell would be fully functional during FY 26-27, the company stated.
This timing strategically aligns the company's output with its ramping module capacity, which is set to reach 3.6 GW. Furthermore, this early adoption ensures Alpex Solar is well-prepared for the implementation of the Approved List of Models and Manufacturers (ALMM) List II mandate, scheduled to go into effect in June 2026, it said.
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