HoloSolis, the French manufacturer of European low carbon PV cells and modules, has secured over €220 million in public and private funding to build one of Europe's largest solar gigafactories in Sarreguemines-Hambach. Backed by Calés Technologie and Forming, and a solid base of long-standing investors including InnoEnergy, TSE, Groupe IDEC, Armor Group, and Heraeus, the project is set to generate 2,000 direct jobs and reach a production capacity of 5 GW per year. Once fully operational by 2030, the plant will produce enough solar modules each year to power one million European homes, representing a significant milestone for Europe’s energy independence.
Image Credit: HoloSolis
To achieve this scale, HoloSolis draws on a robust mix of private capital, regional support and national industrial policy instruments. The funds will be used to finalize the design of the factory, deploy TOPCon technology, and support recruitment and supply-chain setup. In doing so, HoloSolis contributes to building a fully “Made in Europe” solar manufacturing ecosystem and strengthening Europe’s energy sovereignty. The HoloSolis facility will help Europe to reach its goal of having 40 % of PV deployed in Europe to be made in Europe, as set by the Net Zero Industry Act.
Bertrand Lecacheux, CEO of HoloSolis: "HoloSolis already had strong partners: InnoEnergy, Armor Group, IDEC, TSE, and Heraeus. I am very proud that new partners are joining us! We will be able to benefit from their expertise to build the largest TOPCon cell and module gigafactory in Europe. Several photovoltaic developers have chosen to invest in the project and we have a total of more than 20 GW of customer letters of intent, which demonstrates the strength of our business model."
Karine Vernier, CEO of InnoEnergy France: "HoloSolis embodies the ambition we have had since day one: a strong and sovereign European solar industry. Seeing this project reach a decisive milestone with more than €200 million secured is a source of immense pride for InnoEnergy, a long-standing investor committed to the energy transition."
Jean-Paul Calès, President of CALES TECHNOLOGIES: "Investing in HOLOSOLIS affirms our conviction that the energy transition must be supported by a high-performing, innovative, and responsible French industry. Through our subsidiaries, we are committed to promoting national industrial expertise and actively contributing to a more sustainable and sovereign economy."
Eric Lauer, Strategic Development Manager at Forming AG: "Supporting the reindustrialization of France is at the heart of Forming AG's ambitions! Beyond this investment, Forming will contribute its expertise in the interface between photovoltaic panels and structures to improve their performance."
Franck Leroy, President of the Grand Est Region: "This is a decisive step forward for HoloSolis' gigafactory project in Hambach: more than €200 million secured and strengthened partnerships confirm that it will enter the operational phase in 2026. I would like to commend the professionalism and ongoing commitment of the HoloSolis teams. This project contributes to Europe's energy sovereignty and the reindustrialization of our regions, with 1,700 jobs at stake."