European Clean Energy Supply Chains

01 / Clean Energy Component Manufacturing

Solar at 95%, batteries at 87%. European clean-energy deployment increasingly relies on manufacturing concentrated outside Europe.

European clean-energy deployment has expanded substantially faster than domestic manufacturing capacity. Solar panels and battery cells — central to EU climate targets — are predominantly imported, with Chinese manufacturers holding dominant positions across both supply chains. For solar, this reflects sustained Chinese industrial investment, vertically integrated supply chains from polysilicon to finished modules, and panel prices that fell approximately 90% over fifteen years; EU anti-dumping measures (2013–2018) provided limited protection and were not renewed. Battery supply chains are partially localizing: CATL and Samsung SDI operate European gigafactories, improving supply proximity, though most manufacturing capacity remains under Asian ownership. Wind turbines remain a distinct case: EU manufacturers supply approximately 90% of domestically installed capacity, with the principal risk lying in financial sustainability rather than geographic supply-chain exposure. The EU's Net Zero Industry Act (2024) targets 40% domestic manufacturing of annual deployment needs by 2030; current capacity remains substantially below that threshold, implying a significant industrial scaling challenge across most technology areas. The strategic picture varies meaningfully by sector — some import concentration reflects rational specialisation, with EU industry concentrating in offshore installation, grid integration, and high-value power electronics; other exposure is embedded deeper in upstream materials processing, where manufacturing policy alone offers limited leverage.

Solar PV

Solar panels · rooftop + utility - In 2010, Europe was the world's largest solar market — accounting for nearly 75% of global capacity additions, with Germany alone driving ~45% of new installations. But European manufacturers supplied only a fraction of that demand; China had already captured roughly half of global module production by 2010, with EU manufacturers holding approximately 15–25%. The gap between European demand and European supply was already substantial before most remaining domestic manufacturing capacity was displaced. By 2025, China controls ~85% of global module production through sustained state investment, vertically integrated supply chains from polysilicon to finished modules, and panel prices that fell ~90% over 15 years. EU anti-dumping tariffs (2013–2018) failed to sustain domestic manufacturers and were not renewed. Much of the SE Asia share represents Chinese-owned factories in Vietnam and Malaysia operating to circumvent trade measures.

Battery cells

EVs · grid storage - Korean manufacturers — LG Energy Solution, Samsung SDI, SK On — remain significant EU suppliers. EU-based gigafactory ambitions suffered a major setback when Northvolt (Sweden) filed for bankruptcy in late 2024 and ACC (France) faced repeated production delays; near-term EU-based capacity now rests primarily with CATL (Hungary, Germany) and Samsung SDI, both under Asian ownership. Supply chains may localize geographically without fully localizing industrial control, intellectual property, or strategic decision-making. EU domestic cell production remains below 15% of demand.

Inverters

Solar · battery · grid conversion - Inverters convert DC output from solar panels and batteries to AC for grid connection — a component in every solar installation and grid-scale storage system. Chinese manufacturers Huawei and Sungrow have captured roughly 60% of the EU solar inverter market through sustained cost-competitive pricing. EU manufacturers SMA Solar (Germany) and Fronius (Austria) retain a shrinking share. Inverter market concentration closely tracks solar panel supply-chain exposure.

Heat pumps

Building heating · cooling - EU manufacturers — Bosch, Vaillant, Viessmann, Daikin Europe, Atlantic Group — retain meaningful domestic market share, but Chinese brands (Midea, Gree, Haier) have rapidly gained ground with lower-cost units. Total import share has grown from under 20% to roughly 38% within five years, with China now accounting for approximately half of all imported units. EU heat pump installation targets under REPowerEU assume continued manufacturing capacity that is under structural cost pressure from Asian competition.

Wind turbines

Onshore + offshore wind - Wind is the EU's clean-tech manufacturing success story: Vestas, Siemens Gamesa, Nordex, and Enercon together supply approximately 90% of EU-installed turbines domestically — Chinese OEMs held under 1% EU market share as of 2024. The threat is financial rather than geographic: all four major manufacturers posted significant losses in 2022–23 due to input cost inflation and power purchase agreements priced before the energy shock. The deeper supply chain risk lies in nacelle components and permanent magnets, where Chinese processing dominance is substantial — see EU Strategic Material Dependency.

Source: IEA Clean Energy Supply Chains 2023 / IEA Solar PV / IEA Wind / IEA Electric Vehicles / BloombergNEF / EC Net Zero Industry Act · Updated annually