European solar manufacturing in 2026 is experiencing a genuine, if fragile, revival — alongside some of the sector's most high-profile collapses. After a decade of near-total retreat from Chinese competition, a small cohort of European manufacturers has re-entered or scaled production, backed by EU industrial policy and growing demand for supply-chain transparency. Understanding which projects are shipping, which are still construction sites, and which have failed is essential for any buyer, investor, or policymaker watching this space.
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Meyer Burger: From Champion to Insolvency
The most significant setback to the European manufacturing revival story is Meyer Burger. The Swiss company was widely cited as a symbol of European heterojunction solar manufacturing, with cell and module lines at Thalheim and Hohenstein-Ernstthal in Germany. However, Meyer Burger's German subsidiaries filed for insolvency on 31 May 2025, with approximately 620 German employees affected across both sites. A subsequent Chapter 11 filing in the US followed in June 2025. Production at the German plants ceased; assets including technology licences have been subject to acquisition processes (buyers including Solestial and Waaree have been reported). As of 2026, Meyer Burger is not an active European solar manufacturer. Any reference to Meyer Burger as a current producer should be treated as outdated.
Enel Green Power 3SUN: Europe's Largest Operating Factory
In contrast, Enel Green Power's 3SUN gigafactory in Catania, Sicily represents the most significant live European manufacturing story. The facility expanded from approximately 200 MW to a planned 3 GW of annual module capacity, with the expansion backed by a €560 million financing package including EU Innovation Fund support. The factory received TÜV Rheinland certification for its heterojunction panels in November 2024, opening the door to commercial sales. The 3 GW target capacity represents a major increase; timelines for full ramp have slipped from original projections, and independent verification of current run-rate production is advisable before citing specific output figures. The Catania facility nonetheless represents the EU's most credible large-scale operating solar manufacturing site.
Holosolis: France's Gigafactory in Development
Holosolis, backed by a consortium of European investors, secured over €220 million in financing in November 2025 to build a TOPCon module gigafactory in Sarreguemines-Hambach, in the Grand Est region of France. The facility targets 5 GW of annual capacity at full build-out by 2030, making it potentially the largest European solar factory by capacity. However, as of 2026, Holosolis is in construction rather than production: building work is expected to begin in 2026 with first modules targeted for 2027. Any description of Holosolis as currently shipping panels would be premature. The project is widely watched as a test of whether European gigafactory economics can compete with Chinese peers with sustained government backing.
Voltec and Smaller European Producers
France's Voltec Solar, headquartered in Alsace, continues to manufacture bifacial modules with European-sourced cells. Output is in the tens of megawatts per year — a niche scale compared with Chinese peers, but valued by buyers who prioritise EU-origin certification for public procurement or sustainability credentials. Several smaller central European producers operate at similar scales. Collectively, EU-based module assembly capacity is estimated at around 10–14 GW, though cell manufacturing capacity within the EU is considerably lower — in the range of 3–5 GW — because the majority of cells are still sourced from Asia. The EU Solar Strategy's target of 30 GW of manufacturing capacity by 2030 therefore requires significant new investment beyond what is currently operational or under construction.
The Commercial Challenge: Premium Pricing
European-made modules command a premium over equivalent Chinese products — typically 10–20% higher on a per-watt basis, depending on technology and origin certification requirements. For residential and commercial buyers, this premium is rarely recovered through lower logistics costs or tariff savings alone. The business case rests on EU content requirements in public procurement, corporate sustainability targets, and the geopolitical risk premium that buyers increasingly assign to single-source supply chains. The EU's Net-Zero Industry Act creates a framework for preferential treatment of EU-origin equipment in public tenders, which may provide a structural demand base for European factories.
Key Takeaways
- Meyer Burger's German factories closed in May–June 2025 following insolvency; the company is no longer an active European manufacturer.
- Enel 3SUN in Catania is Europe's largest operational solar factory, with a 3 GW target capacity backed by EU Innovation Fund financing.
- Holosolis secured €220 million in late 2025; construction begins in 2026 with first modules expected in 2027, not before.
- EU module assembly capacity is estimated at 10–14 GW, but EU cell manufacturing is much lower at roughly 3–5 GW.
- A 10–20% price premium over Chinese modules means European manufacturing viability depends on public procurement rules and ESG demand.
The European solar manufacturing revival is real but uneven: one major casualty, one live large-scale factory, and one significant project still under construction. Comparisun tracks the supply-chain implications of these developments for residential and commercial buyers across UK and EU markets.