Under the agreement, ISC Konstanz will serve as the primary technology and qualification partner for Celloraa Energy new high-volume manufacturing lines. The project focuses on establishing a robust 1.2 GW TOPCon production capacity, engineered to deliver superior sustainable efficiency and yield.
“This collaboration with Celloraa Energy embodies our mission to bridge the gap between cutting-edge research and industrial scale,” said Dr. Radovan Kopecek, Co-founder and Director of ISC Konstanz. “By combining ISC Konstanz’s deep expertise in n-type cell architecture with German precision equipment and Celloraa Energy manufacturing capabilities, we are creating a blueprint for high-volume production of the most efficient and reliable PV technology on the market.”
Beyond TOPCon: A Roadmap to Back-Contact Technology
The partnership is structured to extend beyond immediate TOPCon production goals. A core component of the agreement includes a comprehensive training program for Celloraa Energy team, conducted by ISC Konstanz team to foster knowledge transfer and operational excellence.
Furthermore, the two entities will jointly establish a research and development roadmap aimed at next-generation device architectures. Following the stabilization of the 1.2 GW TOPCon lines, the collaboration will pivot toward the co-development of high-efficiency, low-cost Back-Contact (BC) technology. This forward-looking strategy positions Celloraa Energy to transition seamlessly to tandem-ready BC structures, ensuring long-term competitiveness in the global energy transition.
“Bringing the highest efficiency PV to market at scale requires more than just purchasing equipment; it requires a partnership that understands the physics of the device and the economics of manufacturing,” said Mr. Brijesh Gondaliya, Director of Celloraa Energy. “ISC Konstanz’s proven track record in piloting new technologies provides us with the confidence to
move rapidly from gigawatt-scale TOPCon production into the next era of BC devices, all while driving down the levelized cost of energy.”
The initiative underscores a shared commitment to accelerating the global energy transition. By deploying German-engineered production solutions and European R&D expertise, the partners aim to set a new benchmark for power density and reliability in the solar industry, making clean energy more accessible and efficient worldwide.
