Scientists at the National Renewable Energy Laboratory (NREL) have developed a lightning protection system for wind turbine blades using a new composite and an innovative thermal welding process.
Created in partnership with General Electric and LM Wind Power and with funding from the US Department of Energy’s Technology Commercialization Fund, the wind turbine ”lightning shield” can divert about 80 per cent of a lightning strike’s current away from the metal heating elements, according to NREL.Lightning protection systems exist for conventional wind turbine blades. But protection was needed for blades made from a new type of material—thermoplastic resin composites—and manufactured using an innovative thermal (heat-based) welding process developed by scientists at NREL - link - Adnan Durakovic - link - more like this - link
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