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Most blades use glass-fibre reinforced epoxy or PET-infused resin; carbon appears in root and spar caps for larger rotors. Material choice trades weight, cost and fatigue life.
Glass vs carbon
| Material | Use | Trade-off |
|---|---|---|
| Glass + epoxy | Standard blades | Proven, lower cost |
| Glass + PET resin | Recyclable blades | Greener, slightly heavier |
| Carbon spar cap | Large rotors | Lighter, pricier |
German suppliers
German material suppliers (Covestro resins, glass weavers) and blade makers (Senvion-era shops, Nordex/Siemens in-house) supply the chain. Recyclable PET blades are gaining EU tenders.
About the Author: Arshiya Sabaghi is the founder of German Industry Hub. With an MSc in Sales Management and experience at McKinsey & Company (Industrial AI), Rolls-Royce Motor Cars, and AkkoNobel, he connects international buyers with verified German manufacturers. Based in Amsterdam. Native German, English, Dutch, and Persian.