Alpex Solar Upgrades UP Cell Plant to 2.2 GW, Shifts to TOPCon Tech

New Delhi-based Alpex Solar has decided to shift directly from its earlier proposed phased MonoPERC technology plan to the advanced G12R TOPCon solar cell technology. Its Board of Directors upgraded its solar cell manufacturing plans to establish a 2.2 GW capacity at its existing manufacturing facility in Kosi Kotwan, Uttar Pradesh. The shift is not surprising, considering the speed at which the sun is setting on MonoPerc technology worldwide, especially in China, where it is well on its way to being phased out soon. 

The estimated additional capital expenditure arising from the adoption of TOPCon technology and capacity enhancement from 1.6 GW to 2.2 GW is approximately Rs 3,136 crore, which will be financed entirely through internal accruals.

The company said the project will be implemented in two phases. Under Phase I, the company would develop a 1.4 GW G12R TOPCon solar cell capacity, which is targeted for trial production in the first quarter of FY 2026-27. Whereas, under Phase II, the company plans to develop the remaining 800 MW, which is expected to be completed within six months thereafter.

Upgradation Of Solar Manufacturing Capacity

Alpex Solar said the upgrade aligns its operations with emerging global technological standards in solar manufacturing and reinforces its goal to develop high-efficiency, next-generation renewable energy solutions.

The company added that adopting a direct-to-TOPCon approach will help avoid conversion costs, factory downtime, and potential revenue loss associated with a phased technology upgrade, ensuring operational continuity and long-term profitability.

Despite the technological shift and capacity expansion, the overall project timeline remains largely unchanged. The entire 2.2 GW TOPCon solar cell manufacturing facility is expected to be fully operational during FY 2026-27.