French clean-energy company HoloSolis has raised over €220 million ($255 million) to accelerate the construction of a major solar panel manufacturing plant in Sarreguemines-Hambach, a project set to become one of Europe’s largest and most strategic renewable-energy facilities.
Why it matters
The investment arrives at a crucial moment for Europe. Solar energy is central to the EU’s ambition to strengthen energy independence, reduce reliance on Russian supply, and scale clean-energy capacity across the region. Yet data from July showed that Europe’s solar expansion was on track for its first annual slowdown in more than a decade — making large-scale investments like HoloSolis even more essential.
By the numbers
- Fully operational by 2030
- Designed to generate enough power for 1 million homes
- Expected to create 2,000 direct jobs
- Target annual production capacity: 5 gigawatts (GW)
These metrics position HoloSolis as a cornerstone of Europe’s next-generation solar manufacturing ecosystem.
Latest financing round
The raise brought together a high-impact group of industrial and energy players, including:
Cales Technologie, InnoEnergy, TSE, Groupe IDEC, Armor Group, and Heraeus.
Their participation underscores growing private-sector commitment to reshoring clean-tech manufacturing in Europe.
Key quote
“HoloSolis embodies the ambition we have had since day one: a strong and sovereign European solar industry,”
— Karine Vernier, CEO of InnoEnergy France
As Europe pushes to rebuild a competitive solar supply chain and strengthen strategic autonomy, HoloSolis’ massive factory marks a defining step forward — both industrially and geopolitically.