Giant all-timber and fully recyclable blades – more than 50 metres in size – could tower over wind turbines from late 2026, marking a huge shake-up for the US $100 billion-plus wind energy market.
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How big are the blades of a wind turbine?
For an average 1.5 MW turbine, the blades are between 35 to 45 meters. This gives an average rotor diameter of around 75 to 100 meters.
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Wind turbine inspection is a tedious and dangerous process due to the extreme height and complexity of the turbine's design.
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The manufacturing process mainly includes hand-lay-up molding, molding, prepreg molding, pultrusion molding, fiber winding, resin transfer molding and vacuum infusion molding.
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Wind turbine blades are built by layering composite materials inside large molds, infusing them with resin, and curing them into lightweight, aerodynamic shells.
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