On December 4, during the China–France Summit, Trina Solar signed a cooperation agreement with French photovoltaic module manufacturer HoloSolis. Under the agreement, the two parties will jointly build HoloSolis’s 5GW solar module manufacturing plant in France.
According to available information, the plant is designed to achieve an annual production capacity of 5GW of solar cells and modules, equivalent to approximately 10 million photovoltaic modules per year. Trina Solar will provide professional technical support for the project, ensuring that it is implemented in line with the most advanced industry standards.
This collaboration represents a further deepening of the partnership between the two companies, following HoloSolis’s acquisition of a license for Trina Solar’s TOPCon (Tunnel Oxide Passivated Contact) technology patents earlier this summer. Construction of the module factory is scheduled to begin in 2026, with production expected to start in 2027 and commercial operations commencing in 2030. Previously, HoloSolis announced that it had raised €220 million (approximately RMB 1.805 billion) in investment to support the development of this gigafactory.
While steadily advancing the localization of overseas manufacturing capacity, Trina Solar has not slowed its pace of innovation in core technologies. On December 14, the National Key Laboratory of Photovoltaic Science and Technology at Trina Solar announced that a large-area perovskite/crystalline silicon tandem solar cell, jointly developed with the Huairou Laboratory, achieved a peak conversion efficiency of 32.6%. Certified by Germany’s Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE), this result set a new world record for cells of the 210 × 105 mm² format.
At the same time, an industrial-standard module with an area of 3.1 m², integrated based on this technology, was certified by TÜV SÜD and reached an output power of 865W, also establishing a new global record.
Source：EnergyTrend