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Insolation Energy to Start 4.5 GW Solar Cell Manufacturing from September 2026 Photograph: (Archive)
Indian solar module manufacturing company Insolation Energy has planned to begin commercial production of solar cells from September 2026. Abhishek Kaushal, Chief Business Officer (CBO) of the listed firm in an interview with Saur Energy talked about the expansion roadmap of the firm and its likely timelines. 
Kaushal said that the firm will commission a 4.5 GW TOPCon solar cell manufacturing facility later this year, positioning the company among the early domestic players moving into large-scale cell manufacturing.
“We are getting into TOPCon cell production and will have a 4.5 GW operational plant by September,” the official said. “While we may not be the first mover, we will definitely be among the early movers in this segment.”
The upcoming solar cell facility will be located in Neemrana, Madhya Pradesh, with the company citing supportive state policies and availability of natural resources, including water, as key factors behind the site selection.
The company currently operates 5.5 GW of solar module manufacturing capacity, producing modules ranging from 40 Wp to 640 Wp. Insolation Energy also plans to expand its module capacity to 7 GW by the end of next year.
In addition to the cell manufacturing plant, the firm is strengthening its backward integration capabilities. It plans to commission an aluminium frame manufacturing unit with an annual capacity of 18,000 metric tonnes within the next two to three months.
According to the official, the company is focusing on G12R module technology, which has gained traction in the market due to improved logistics efficiency and higher power output.
“G12R modules are seeing strong demand because their dimensions help reduce shipping costs while improving module efficiency,” the official said. “As output increases, the overall economics also become more favourable.”
The company expects demand for advanced technologies such as TOPCon to grow as the industry transitions away from older mono-PERC technology. “The availability of mono-PERC cells is already declining. Over the next two to three quarters, most suppliers are expected to upgrade to technologies like TOPCon and G12R,” the official added.
The expansion plans come as India pushes to strengthen domestic solar manufacturing under policy frameworks such as the Approved List of Models and Manufacturers (ALMM) and local content requirements aimed at reducing import dependence.
Currently, around 26 GW of solar cell capacity has been listed under ALMM, although much of it is yet to shift to advanced cell technologies like G12R-based TOPCon, the official noted. Founded in 2017, Insolation Energy has rapidly scaled its manufacturing footprint over the past few years and is positioning itself as an integrated solar equipment manufacturer in India’s fast-growing renewable energy market.
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