1.2 GW
State-of-the-Art Facility
>25.2%
Efficiency
G12R
TOPCon Technology
Made In India
DCR Cells
Manufacturing Strength
Celloraa Energy is developing 1.2 GW of state-of-the-art facility with a future-ready solar cell manufacturing ecosystem focused on precision engineering, intelligent automation, and scalable renewable production aligned with global industry standards.
Current Capacity
Developing a 1.2 GW advanced solar cell manufacturing facility designed to support high-efficiency renewable energy production and future industrial scalability.
Scalable Infrastructure
Future-proof manufacturing architecture engineered for seamless multi-GW expansion and next-generation renewable manufacturing growth.
Advanced Equipment
Integrated with globally advanced manufacturing technologies, precision automation systems, and intelligent production workflows through Indo-German technology collaborations.
Strict Quality Control
Built around advanced process monitoring, precision engineering standards, and rigorous quality assurance systems to ensure high-performance and reliable solar cell manufacturing.
Global Partnerships
Rena Technologies | Centrotherm | ISC Konstanz |
| Powered by German-engineered wet processing technology for superior cell quality and process reliability. | Advanced German thermal engineering for high-efficiency TOPCon solar cell manufacturing. | Supported by one of Europe’s leading photovoltaic research and technology institutions |
| Sustainable and water-efficient manufacturing infrastructure aligned with future global ESG standards | Partnered with globally recognised photovoltaic process engineering experts. | Advanced process engineering support for optimised manufacturing performance |
| Industrial-grade manufacturing systems designed for scalable high-efficiency TOPCon production | Precision thin-film engineering designed for next-generation solar cell efficiency. | Research-backed technology strategy aligned with the future of photovoltaics. |
| Precision-engineered processing systems supporting next-generation photovoltaic performance | Technology ecosystem aligned with internationally benchmarked solar manufacturing standards | Engineering validation and technical expertise supporting high-quality solar manufacturing. |
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Manufacturing of Celloraa TOPCon G12R Solar Cell
Celloraa Energy’s TOPCon G12R solar cells are manufactured through a highly controlled sequence of precision engineering, advanced passivation technologies, intelligent automation, and scalable renewable manufacturing systems designed for high-efficiency energy generation.
Wafer Preparation & Texturing
High-purity N-type silicon wafers undergo advanced cleaning and precision texturing to create uniform micro-pyramid structures that enhance light trapping, reduce reflectance, and maximize energy conversion efficiency.
Boron Diffusion
A precisely controlled boron diffusion process creates the p-n junction, enabling efficient charge separation and power generation.
BSG Removal & Rear Polishing
Borosilicate glass is chemically removed while the wafer surface is polished to prepare it for advanced passivation and improve electrical performance.
Tunnel Oxide & Poly-Silicon Deposition (PE-Poly)
An ultra-thin tunnel oxide and phosphorus-doped poly-silicon layer are deposited to form the TOPCon passivated contact, significantly reducing carrier recombination losses.
Annealing & Surface Cleaning
High-temperature annealing converts amorphous silicon into conductive polycrystalline silicon, followed by PSG removal and RCA cleaning to eliminate unwanted layers and contaminants.
Front ALD AlOx Passivation
Atomic Layer Deposition (ALD) applies an ultra-thin aluminium oxide layer that delivers exceptional front-surface passivation and minimizes recombination losses.
Front PECVD SiNx Coating
A silicon nitride anti-reflective coating is deposited on the front surface to enhance light transmission while protecting the passivation layer.
Rear PECVD SiNx Coating
The rear surface receives a silicon nitride dielectric layer that improves rear-side passivation, hydrogenation, and long-term electrical stability.
Precision Metallization
High-precision screen printing applies silver conductive patterns to create efficient current-collecting electrodes with minimal electrical resistance.
Co-Firing & Contact Formation
Rapid thermal firing forms durable low-resistance electrical contacts while activating hydrogen passivation to maximize efficiency and long-term reliability.
Testing, Sorting & Quality Assurance
Every Celloraa TOPCon solar cell undergoes comprehensive electrical, optical, and visual inspection before automated grading, sorting, and packaging to ensure world-class quality and consistent performance.