The wind manufacturers' quest for lighter materials

David Milborrow, Windpower Monthly Magazine, 27 August 2010, 2:22pm

The blades of a wind turbine account for about 20% of its total cost. A wide range of materials has been used or considered for construction; in the early days, most large turbines used a steel spar and a lighter material for the aerofoil section, such as glass-reinforced plastic (GRP).

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