Carbon Fibre in Wind Energy
topic
Wind turbine applications: carbon/glass hybrid blades with carbon in spar caps (30-40% of blade length) for stiffness in blades >60 m, enabling larger turbines (10-15 MW) without tower strike. Carbon content: 0.5-2 tonnes per blade in 80-115 m blades vs. full glass 15-50 tonnes. Trade-off: carbon adds $500,000-1,500,000 per blade but enables 10-15% energy capture increase through larger rotor diameter.
Role
Carbon enables wind turbine scaling critical for offshore wind economics (larger turbines reduce installation cost per MW) but remains limited to blade extremities due to cost; carbon-glass hybridization optimizes performance-cost.