The multi-billion dollar acquisitions of blade designer Blade Dynamics and more recently blade-maker LM Windpower by GE, and now Senvion's all-cash takeover of Euros, brings into sharp relief the growing demand for high-quality rotor blades and the pressure on the supply chain for these components. 

Many OEMs use a split procurement strategy for blades, with in-house manufacturing complimented by third party manufacturers  – typically operating as a complete standalone blade supplier or in a “build-to-print” capacity.