Market update · Europe
Soluxtec Resumes TOPCon Solar Module Production in Germany
Soluxtec, a German solar module manufacturer, has restarted production at its Trier-Föhren facility after upgrading its lines to produce G12-format TOPCon modules. This follows the company's acquisition by Chinese PV manufacturer Ronmaa and a comprehensive modernization of its manufacturing operations. The company aims to gradually ramp up production and expand its R&D activities to develop new PV products for residential and commercial applications.
SolTraCo market update · · 3 min readProduction Restart and Technology Upgrade
Soluxtec has resumed production at its Trier-Föhren facility in Germany after upgrading its manufacturing lines to produce solar modules using tunnel oxide passivated contact (TOPCon) technology with G12-format cells, replacing the previous M10 format. This transition is a core component of Soluxtec’s product and manufacturing strategy.
The company plans to gradually increase production over the coming weeks but has not disclosed the annual production capacity of the modernized plant.
Ownership Change and Strategic Focus
The production restart follows Soluxtec’s acquisition by Chinese PV manufacturer Ronmaa, which has supported a comprehensive upgrade of the existing production lines. The partnership with Ronmaa is also expected to bolster Soluxtec’s research and development activities.
Soluxtec’s German manufacturing operations will serve as a foundation for developing new photovoltaic products aimed at residential and commercial and industrial (C&I) markets.
Previous Insolvency and Market Challenges
Soluxtec filed for insolvency in April 2026 due to intense international competition and declining solar module prices. At that time, the company employed 70 people across its manufacturing operations in Bitburg and Föhren, where it had produced solar modules for 15 years.
The insolvency reflected broader pressures on European solar manufacturers from low module prices and competition from overseas suppliers, with European TOPCon module prices falling sharply in 2024 amid weak demand and high inventories.
Sources
This update is an original SolTraCo synthesis of the linked industry sources. Reported facts and commercial interpretation are kept separate. It does not contain confidential deal information and is not investment, legal or technical advice.