Holosolis : A Photovoltaic Gigafactory

Holosolis is a simplified joint-stock company (SAS) founded in 2022 by InnoEnergy. The company is planning the construction of a high-efficiency photovoltaic production facility in Sarreguemines-Hambach. Construction is scheduled to begin in 2026, with the first modules expected in 2027. At full capacity, the site will employ 1,900 people and produce over 10 million solar panels annually—enough to power one million households.

Holosolis : Key Figures

• Sector: Renewable Energy – Photovoltaics
• Location: Hambach, Sarreguemines Confluences Agglomeration Community, Moselle
• Jobs Created: 1,700 (at full capacity)
• Production Capacity: 5 GW/year – 10 million photovoltaic panels annually
• Start of Production: 2025
• Partners: EIT InnoEnergy, IDEC Group, TSE

A Strategic Investment for European Energy Sovereignty

Holosolis, a European industrial initiative supported by EIT InnoEnergy, IDEC Group, and TSE, has selected Eastern France for the establishment of its first photovoltaic gigafactory. Located in Hambach (Moselle), the site will host one of the largest solar panel production facilities in Europe, with an annual capacity of 5 GW—equivalent to 10 million panels.

This strategic investment contributes directly to the European Union’s REPowerEU plan and the European Solar Industrial Alliance (ESIA), aiming to strengthen Europe’s energy independence and accelerate the transition to a low-carbon economy.

Testimonial of Bertrand Lecacheux, President of Holosolis