PVTIME – RENA Technologies, a German manufacturer of wet processing equipment, has secured an agreement with Celloraa Energy Limited to supply next-generation wet processing systems for a planned 1.2GW TOPCon solar cell production facility in Gujarat, India.
The equipment package includes the InEtchSide 4+, BatchPolyClean N600, BatchEtch N600 and BatchTex N600 systems. Celloraa expects to begin cell production by the end of the 2026/27 financial year.
This will be Gujarat’s first advanced solar cell production line. The two parties are drafting a Memorandum of Understanding to collaborate on RENA’s cell processing technologies and to advance the next generation of interdigitated back contact solar cell technology.
The Indian government has introduced fiscal incentives and demand-side policies, including the Production Linked Incentive scheme and the Approved List of Models and Manufacturers, to promote domestic photovoltaic manufacturing and increase capacity, with Celloraa being one of the participating companies.
RENA’s equipment maximises water efficiency, delivering a reduction in water consumption and wastewater of approximately 50%. It eliminates the use of hydrogen peroxide in key wet chemical processes, thereby enhancing safety, reducing the need for hazardous chemical storage and simplifying logistics and compliance while lowering chemical waste.
RENA stated that these systems combine high-efficiency processes with environmentally friendly design, enabling manufacturers to achieve superior cell performance while maintaining competitive production costs.
In early 2024, RENA secured orders for gigawatt-scale photovoltaic equipment from the US and India. For the Celloraa project, RENA will provide localised services and technical support via its Mumbai-based partner, as well as digital intelligent services to help ramp up production capacity.
The two parties also plan to sign a Memorandum of Understanding to collaborate on the development of next-generation solar manufacturing technologies. The focus will be on water conservation, process optimisation, and preparing for the mass production of IBC cells.
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