RENA Technologies has secured an order to supply advanced wet chemical processing systems for Celloraa Energy’s new 1.2 GW TOPCon solar cell manufacturing line at Surat, Gujarat.
Under the agreement, RENA Technologies will supply its latest generation wet processing equipment, including InEtchSide 4+, BatchPolyClean N600, BatchEtch N600, and BatchTex N600. The systems will support the production of high-efficiency TOPCon solar cells, with start of cell production targeted for end of FY 2026-27.
RENA Technologies said the selected equipment platforms are specifically engineered for maximum water efficiency, delivering substantial 50% reduction in water consumption and wastewater generation. These water-saving innovations significantly lower operational expenditures (OPEX) while supporting sustainable manufacturing practices—such as Zero Liquid Discharge.
Additionally, the integrated processes are designed to be H₂O₂-free, eliminating the need for hydrogen peroxide in key wet chemical steps.
By combining high-efficiency processing with environmentally responsible engineering, the systems enable manufacturers to achieve superior cell performance while maintaining competitive production costs.
To support Celloraa’s rapid ramp-up plans, RENA Technologies will provide local service and support in India through its long-standing partner, International Marketing Corporation (IMC), Mumbai, as well as digital smart service.
RENA and Celloraa are also planning a strategic partnership to jointly advance next-generation solar manufacturing technologies. A Memorandum of Understanding (MOU) is currently in preparation. The partnership will focus on the improvement and further development of RENAs water-saving technologies, comprehensive process optimization, and the preparation of production lines for next-generation solar cell concepts such as IBC (Interdigitated Back Contact) cells.
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